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authorSamuel Ortiz <sameo@openedhand.com>2007-08-23 16:52:44 +0000
committerSamuel Ortiz <sameo@openedhand.com>2007-08-23 16:52:44 +0000
commit62a6dcc798d01680668b2a37a3a882e57e3dbe94 (patch)
treebe1e283d03e053c5ae8b6268ae787a7c4c70989c /meta/packages
parentd1e1cc0d9ad08d726beced6e5deaf2963d4f05c4 (diff)
downloadpoky-62a6dcc798d01680668b2a37a3a882e57e3dbe94.tar.gz
linux-rp: Add 802.11 driver for HTC Universal.
git-svn-id: https://svn.o-hand.com/repos/poky/trunk@2547 311d38ba-8fff-0310-9ca6-ca027cbcb966
Diffstat (limited to 'meta/packages')
-rw-r--r--meta/packages/linux/linux-rp-2.6.22/defconfig-htcuniversal8
-rw-r--r--meta/packages/linux/linux-rp-2.6.22/htcuni-acx.patch33526
-rw-r--r--meta/packages/linux/linux-rp_2.6.22.bb2
3 files changed, 33535 insertions, 1 deletions
diff --git a/meta/packages/linux/linux-rp-2.6.22/defconfig-htcuniversal b/meta/packages/linux/linux-rp-2.6.22/defconfig-htcuniversal
index 0df4c6a10b..04e9070b80 100644
--- a/meta/packages/linux/linux-rp-2.6.22/defconfig-htcuniversal
+++ b/meta/packages/linux/linux-rp-2.6.22/defconfig-htcuniversal
@@ -1,7 +1,7 @@
1# 1#
2# Automatically generated make config: don't edit 2# Automatically generated make config: don't edit
3# Linux kernel version: 2.6.22 3# Linux kernel version: 2.6.22
4# Thu Aug 23 14:47:39 2007 4# Thu Aug 23 16:10:44 2007
5# 5#
6CONFIG_ARM=y 6CONFIG_ARM=y
7CONFIG_SYS_SUPPORTS_APM_EMULATION=y 7CONFIG_SYS_SUPPORTS_APM_EMULATION=y
@@ -583,8 +583,14 @@ CONFIG_NETDEV_10000=y
583# 583#
584# Wireless LAN 584# Wireless LAN
585# 585#
586CONFIG_NET_RADIO=y
587# CONFIG_NET_WIRELESS_RTNETLINK is not set
586# CONFIG_WLAN_PRE80211 is not set 588# CONFIG_WLAN_PRE80211 is not set
587# CONFIG_WLAN_80211 is not set 589# CONFIG_WLAN_80211 is not set
590CONFIG_ACX=m
591CONFIG_ACX_MEM=y
592# CONFIG_ACX_CS is not set
593CONFIG_ACX_HTCUNIVERSAL=m
588# CONFIG_WAN is not set 594# CONFIG_WAN is not set
589CONFIG_PPP=m 595CONFIG_PPP=m
590# CONFIG_PPP_MULTILINK is not set 596# CONFIG_PPP_MULTILINK is not set
diff --git a/meta/packages/linux/linux-rp-2.6.22/htcuni-acx.patch b/meta/packages/linux/linux-rp-2.6.22/htcuni-acx.patch
new file mode 100644
index 0000000000..769674c935
--- /dev/null
+++ b/meta/packages/linux/linux-rp-2.6.22/htcuni-acx.patch
@@ -0,0 +1,33526 @@
1---
2 drivers/net/wireless/Kconfig | 31
3 drivers/net/wireless/Makefile | 2
4 drivers/net/wireless/acx/Kconfig | 113
5 drivers/net/wireless/acx/Makefile | 21
6 drivers/net/wireless/acx/acx.h | 14
7 drivers/net/wireless/acx/acx_config.h | 50
8 drivers/net/wireless/acx/acx_func.h | 710 ++
9 drivers/net/wireless/acx/acx_hw.h | 18
10 drivers/net/wireless/acx/acx_struct.h | 2114 ++++++++
11 drivers/net/wireless/acx/common.c | 7388 ++++++++++++++++++++++++++++
12 drivers/net/wireless/acx/conv.c | 504 +
13 drivers/net/wireless/acx/cs.c | 5703 +++++++++++++++++++++
14 drivers/net/wireless/acx/htcsable_acx.c | 118
15 drivers/net/wireless/acx/htcuniversal_acx.c | 108
16 drivers/net/wireless/acx/hx4700_acx.c | 108
17 drivers/net/wireless/acx/ioctl.c | 2748 ++++++++++
18 drivers/net/wireless/acx/mem.c | 5363 ++++++++++++++++++++
19 drivers/net/wireless/acx/pci.c | 4234 ++++++++++++++++
20 drivers/net/wireless/acx/rx3000_acx.c | 110
21 drivers/net/wireless/acx/setrate.c | 213
22 drivers/net/wireless/acx/usb.c | 1922 +++++++
23 drivers/net/wireless/acx/wlan.c | 424 +
24 drivers/net/wireless/acx/wlan_compat.h | 260
25 drivers/net/wireless/acx/wlan_hdr.h | 497 +
26 drivers/net/wireless/acx/wlan_mgmt.h | 582 ++
27 25 files changed, 33355 insertions(+)
28
29Index: linux-2.6.22/drivers/net/wireless/acx/acx_config.h
30===================================================================
31--- /dev/null 1970-01-01 00:00:00.000000000 +0000
32+++ linux-2.6.22/drivers/net/wireless/acx/acx_config.h 2007-08-23 18:46:40.000000000 +0200
33@@ -0,0 +1,50 @@
34+#define ACX_RELEASE "v0.3.36"
35+
36+/*
37+ * Test out all the channels in reg domain 0x10
38+ */
39+#define ACX_ALLOW_ALLCHANNELS
40+
41+/* set to 0 if you don't want any debugging code to be compiled in */
42+/* set to 1 if you want some debugging */
43+/* set to 2 if you want extensive debug log */
44+#define ACX_DEBUG 0
45+
46+/*
47+ * Since we'll be changing channels a lot
48+#define ACX_DEFAULT_MSG (L_ASSOC|L_INIT)
49+*/
50+#define ACX_DEFAULT_MSG (L_ASSOC|L_INIT)
51+
52+/* assume 32bit I/O width
53+ * (16bit is also compatible with Compact Flash) */
54+#define ACX_IO_WIDTH 32
55+
56+/* Set this to 1 if you want monitor mode to use
57+ * phy header. Currently it is not useful anyway since we
58+ * don't know what useful info (if any) is in phy header.
59+ * If you want faster/smaller code, say 0 here */
60+#define WANT_PHY_HDR 0
61+
62+/* whether to do Tx descriptor cleanup in softirq (i.e. not in IRQ
63+ * handler) or not. Note that doing it later does slightly increase
64+ * system load, so still do that stuff in the IRQ handler for now,
65+ * even if that probably means worse latency */
66+#define TX_CLEANUP_IN_SOFTIRQ 0
67+
68+/* if you want very experimental 802.11 power save mode features */
69+#define POWER_SAVE_80211 0
70+
71+/* if you want very early packet fragmentation bits and pieces */
72+#define ACX_FRAGMENTATION 0
73+
74+/* Locking: */
75+/* very talkative */
76+/* #define PARANOID_LOCKING 1 */
77+/* normal (use when bug-free) */
78+#define DO_LOCKING 1
79+/* else locking is disabled! */
80+
81+/* 0 - normal mode */
82+/* 1 - development/debug: probe for IEs on modprobe */
83+#define CMD_DISCOVERY 0
84Index: linux-2.6.22/drivers/net/wireless/acx/acx_func.h
85===================================================================
86--- /dev/null 1970-01-01 00:00:00.000000000 +0000
87+++ linux-2.6.22/drivers/net/wireless/acx/acx_func.h 2007-08-23 18:34:19.000000000 +0200
88@@ -0,0 +1,710 @@
89+/***********************************************************************
90+** Copyright (C) 2003 ACX100 Open Source Project
91+**
92+** The contents of this file are subject to the Mozilla Public
93+** License Version 1.1 (the "License"); you may not use this file
94+** except in compliance with the License. You may obtain a copy of
95+** the License at http://www.mozilla.org/MPL/
96+**
97+** Software distributed under the License is distributed on an "AS
98+** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
99+** implied. See the License for the specific language governing
100+** rights and limitations under the License.
101+**
102+** Alternatively, the contents of this file may be used under the
103+** terms of the GNU Public License version 2 (the "GPL"), in which
104+** case the provisions of the GPL are applicable instead of the
105+** above. If you wish to allow the use of your version of this file
106+** only under the terms of the GPL and not to allow others to use
107+** your version of this file under the MPL, indicate your decision
108+** by deleting the provisions above and replace them with the notice
109+** and other provisions required by the GPL. If you do not delete
110+** the provisions above, a recipient may use your version of this
111+** file under either the MPL or the GPL.
112+** ---------------------------------------------------------------------
113+** Inquiries regarding the ACX100 Open Source Project can be
114+** made directly to:
115+**
116+** acx100-users@lists.sf.net
117+** http://acx100.sf.net
118+** ---------------------------------------------------------------------
119+*/
120+
121+
122+/***********************************************************************
123+** LOGGING
124+**
125+** - Avoid SHOUTING needlessly. Avoid excessive verbosity.
126+** Gradually remove messages which are old debugging aids.
127+**
128+** - Use printk() for messages which are to be always logged.
129+** Supply either 'acx:' or '<devname>:' prefix so that user
130+** can figure out who's speaking among other kernel chatter.
131+** acx: is for general issues (e.g. "acx: no firmware image!")
132+** while <devname>: is related to a particular device
133+** (think about multi-card setup). Double check that message
134+** is not confusing to the average user.
135+**
136+** - use printk KERN_xxx level only if message is not a WARNING
137+** but is INFO, ERR etc.
138+**
139+** - Use printk_ratelimited() for messages which may flood
140+** (e.g. "rx DUP pkt!").
141+**
142+** - Use log() for messages which may be omitted (and they
143+** _will_ be omitted in non-debug builds). Note that
144+** message levels may be disabled at compile-time selectively,
145+** thus select them wisely. Example: L_DEBUG is the lowest
146+** (most likely to be compiled out) -> use for less important stuff.
147+**
148+** - Do not print important stuff with log(), or else people
149+** will never build non-debug driver.
150+**
151+** Style:
152+** hex: capital letters, zero filled (e.g. 0x02AC)
153+** str: dont start from capitals, no trailing periods ("tx: queue is stopped")
154+*/
155+#if ACX_DEBUG > 1
156+
157+void log_fn_enter(const char *funcname);
158+void log_fn_exit(const char *funcname);
159+void log_fn_exit_v(const char *funcname, int v);
160+
161+#define FN_ENTER \
162+ do { \
163+ if (unlikely(acx_debug & L_FUNC)) { \
164+ log_fn_enter(__func__); \
165+ } \
166+ } while (0)
167+
168+#define FN_EXIT1(v) \
169+ do { \
170+ if (unlikely(acx_debug & L_FUNC)) { \
171+ log_fn_exit_v(__func__, v); \
172+ } \
173+ } while (0)
174+#define FN_EXIT0 \
175+ do { \
176+ if (unlikely(acx_debug & L_FUNC)) { \
177+ log_fn_exit(__func__); \
178+ } \
179+ } while (0)
180+
181+#else
182+
183+#define FN_ENTER
184+#define FN_EXIT1(v)
185+#define FN_EXIT0
186+
187+#endif /* ACX_DEBUG > 1 */
188+
189+
190+#if ACX_DEBUG
191+
192+#define log(chan, args...) \
193+ do { \
194+ if (acx_debug & (chan)) \
195+ printk(KERN_DEBUG args); \
196+ } while (0)
197+#define printk_ratelimited(args...) printk(args)
198+
199+#else /* Non-debug build: */
200+
201+#define log(chan, args...)
202+/* Standard way of log flood prevention */
203+#define printk_ratelimited(args...) \
204+do { \
205+ if (printk_ratelimit()) \
206+ printk(args); \
207+} while (0)
208+
209+#endif /* ACX_DEBUG */
210+
211+void acx_print_mac(const char *head, const u8 *mac, const char *tail);
212+
213+/* Optimized out to nothing in non-debug build */
214+static inline void
215+acxlog_mac(int level, const char *head, const u8 *mac, const char *tail)
216+{
217+ if (acx_debug & level) {
218+ acx_print_mac(head, mac, tail);
219+ }
220+}
221+
222+
223+/***********************************************************************
224+** MAC address helpers
225+*/
226+static inline void
227+MAC_COPY(u8 *mac, const u8 *src)
228+{
229+ *(u32*)mac = *(u32*)src;
230+ ((u16*)mac)[2] = ((u16*)src)[2];
231+ /* kernel's memcpy will do the same: memcpy(dst, src, ETH_ALEN); */
232+}
233+
234+static inline void
235+MAC_FILL(u8 *mac, u8 val)
236+{
237+ memset(mac, val, ETH_ALEN);
238+}
239+
240+static inline void
241+MAC_BCAST(u8 *mac)
242+{
243+ ((u16*)mac)[2] = *(u32*)mac = -1;
244+}
245+
246+static inline void
247+MAC_ZERO(u8 *mac)
248+{
249+ ((u16*)mac)[2] = *(u32*)mac = 0;
250+}
251+
252+static inline int
253+mac_is_equal(const u8 *a, const u8 *b)
254+{
255+ /* can't beat this */
256+ return memcmp(a, b, ETH_ALEN) == 0;
257+}
258+
259+static inline int
260+mac_is_bcast(const u8 *mac)
261+{
262+ /* AND together 4 first bytes with sign-extended 2 last bytes
263+ ** Only bcast address gives 0xffffffff. +1 gives 0 */
264+ return ( *(s32*)mac & ((s16*)mac)[2] ) + 1 == 0;
265+}
266+
267+static inline int
268+mac_is_zero(const u8 *mac)
269+{
270+ return ( *(u32*)mac | ((u16*)mac)[2] ) == 0;
271+}
272+
273+static inline int
274+mac_is_directed(const u8 *mac)
275+{
276+ return (mac[0] & 1)==0;
277+}
278+
279+static inline int
280+mac_is_mcast(const u8 *mac)
281+{
282+ return (mac[0] & 1) && !mac_is_bcast(mac);
283+}
284+
285+#define MACSTR "%02X:%02X:%02X:%02X:%02X:%02X"
286+#define MAC(bytevector) \
287+ ((unsigned char *)bytevector)[0], \
288+ ((unsigned char *)bytevector)[1], \
289+ ((unsigned char *)bytevector)[2], \
290+ ((unsigned char *)bytevector)[3], \
291+ ((unsigned char *)bytevector)[4], \
292+ ((unsigned char *)bytevector)[5]
293+
294+
295+/***********************************************************************
296+** Random helpers
297+*/
298+#define TO_STRING(x) #x
299+#define STRING(x) TO_STRING(x)
300+
301+#define CLEAR_BIT(val, mask) ((val) &= ~(mask))
302+#define SET_BIT(val, mask) ((val) |= (mask))
303+
304+/* undefined if v==0 */
305+static inline unsigned int
306+lowest_bit(u16 v)
307+{
308+ unsigned int n = 0;
309+ while (!(v & 0xf)) { v>>=4; n+=4; }
310+ while (!(v & 1)) { v>>=1; n++; }
311+ return n;
312+}
313+
314+/* undefined if v==0 */
315+static inline unsigned int
316+highest_bit(u16 v)
317+{
318+ unsigned int n = 0;
319+ while (v>0xf) { v>>=4; n+=4; }
320+ while (v>1) { v>>=1; n++; }
321+ return n;
322+}
323+
324+/* undefined if v==0 */
325+static inline int
326+has_only_one_bit(u16 v)
327+{
328+ return ((v-1) ^ v) >= v;
329+}
330+
331+
332+static inline int
333+is_hidden_essid(char *essid)
334+{
335+ return (('\0' == essid[0]) ||
336+ ((' ' == essid[0]) && ('\0' == essid[1])));
337+}
338+
339+/***********************************************************************
340+** LOCKING
341+** We have adev->sem and adev->lock.
342+**
343+** We employ following naming convention in order to get locking right:
344+**
345+** acx_e_xxxx - external entry points called from process context.
346+** It is okay to sleep. adev->sem is to be taken on entry.
347+** acx_i_xxxx - external entry points possibly called from atomic context.
348+** Sleeping is not allowed (and thus down(sem) is not legal!)
349+** acx_s_xxxx - potentially sleeping functions. Do not ever call under lock!
350+** acx_l_xxxx - functions which expect lock to be already taken.
351+** rest - non-sleeping functions which do not require locking
352+** but may be run under lock
353+**
354+** A small number of local helpers do not have acx_[eisl]_ prefix.
355+** They are always close to caller and are to be reviewed locally.
356+**
357+** Theory of operation:
358+**
359+** All process-context entry points (_e_ functions) take sem
360+** immediately. IRQ handler and other 'atomic-context' entry points
361+** (_i_ functions) take lock immediately on entry, but dont take sem
362+** because that might sleep.
363+**
364+** Thus *all* code is either protected by sem or lock, or both.
365+**
366+** Code which must not run concurrently with IRQ takes lock.
367+** Such code is marked with _l_.
368+**
369+** This results in the following rules of thumb useful in code review:
370+**
371+** + If a function calls _s_ fn, it must be an _s_ itself.
372+** + You can call _l_ fn only (a) from another _l_ fn
373+** or (b) from _s_, _e_ or _i_ fn by taking lock, calling _l_,
374+** and dropping lock.
375+** + All IRQ code runs under lock.
376+** + Any _s_ fn is running under sem.
377+** + Code under sem can race only with IRQ code.
378+** + Code under sem+lock cannot race with anything.
379+*/
380+
381+/* These functions *must* be inline or they will break horribly on SPARC, due
382+ * to its weird semantics for save/restore flags */
383+
384+#if defined(PARANOID_LOCKING) /* Lock debugging */
385+
386+void acx_lock_debug(acx_device_t *adev, const char* where);
387+void acx_unlock_debug(acx_device_t *adev, const char* where);
388+void acx_down_debug(acx_device_t *adev, const char* where);
389+void acx_up_debug(acx_device_t *adev, const char* where);
390+void acx_lock_unhold(void);
391+void acx_sem_unhold(void);
392+
393+static inline void
394+acx_lock_helper(acx_device_t *adev, unsigned long *fp, const char* where)
395+{
396+ acx_lock_debug(adev, where);
397+ spin_lock_irqsave(&adev->lock, *fp);
398+}
399+static inline void
400+acx_unlock_helper(acx_device_t *adev, unsigned long *fp, const char* where)
401+{
402+ acx_unlock_debug(adev, where);
403+ spin_unlock_irqrestore(&adev->lock, *fp);
404+}
405+static inline void
406+acx_down_helper(acx_device_t *adev, const char* where)
407+{
408+ acx_down_debug(adev, where);
409+}
410+static inline void
411+acx_up_helper(acx_device_t *adev, const char* where)
412+{
413+ acx_up_debug(adev, where);
414+}
415+#define acx_lock(adev, flags) acx_lock_helper(adev, &(flags), __FILE__ ":" STRING(__LINE__))
416+#define acx_unlock(adev, flags) acx_unlock_helper(adev, &(flags), __FILE__ ":" STRING(__LINE__))
417+#define acx_sem_lock(adev) acx_down_helper(adev, __FILE__ ":" STRING(__LINE__))
418+#define acx_sem_unlock(adev) acx_up_helper(adev, __FILE__ ":" STRING(__LINE__))
419+
420+#elif defined(DO_LOCKING)
421+
422+#define acx_lock(adev, flags) spin_lock_irqsave(&adev->lock, flags)
423+#define acx_unlock(adev, flags) spin_unlock_irqrestore(&adev->lock, flags)
424+#define acx_sem_lock(adev) down(&adev->sem)
425+#define acx_sem_unlock(adev) up(&adev->sem)
426+#define acx_lock_unhold() ((void)0)
427+#define acx_sem_unhold() ((void)0)
428+
429+#else /* no locking! :( */
430+
431+#define acx_lock(adev, flags) ((void)0)
432+#define acx_unlock(adev, flags) ((void)0)
433+#define acx_sem_lock(adev) ((void)0)
434+#define acx_sem_unlock(adev) ((void)0)
435+#define acx_lock_unhold() ((void)0)
436+#define acx_sem_unhold() ((void)0)
437+
438+#endif
439+
440+
441+/***********************************************************************
442+*/
443+
444+/* Can race with rx path (which is not protected by sem):
445+** rx -> process_[re]assocresp() -> set_status(ASSOCIATED) -> wake_queue()
446+** Can race with tx_complete IRQ:
447+** IRQ -> acxpci_l_clean_txdesc -> acx_wake_queue
448+** Review carefully all callsites */
449+static inline void
450+acx_stop_queue(struct net_device *ndev, const char *msg)
451+{
452+ if (netif_queue_stopped(ndev))
453+ return;
454+
455+ netif_stop_queue(ndev);
456+ if (msg)
457+ log(L_BUFT, "tx: stop queue %s\n", msg);
458+}
459+
460+static inline int
461+acx_queue_stopped(struct net_device *ndev)
462+{
463+ return netif_queue_stopped(ndev);
464+}
465+
466+/*
467+static inline void
468+acx_start_queue(struct net_device *ndev, const char *msg)
469+{
470+ netif_start_queue(ndev);
471+ if (msg)
472+ log(L_BUFT, "tx: start queue %s\n", msg);
473+}
474+*/
475+
476+static inline void
477+acx_wake_queue(struct net_device *ndev, const char *msg)
478+{
479+ netif_wake_queue(ndev);
480+ if (msg)
481+ log(L_BUFT, "tx: wake queue %s\n", msg);
482+}
483+
484+static inline void
485+acx_carrier_off(struct net_device *ndev, const char *msg)
486+{
487+ netif_carrier_off(ndev);
488+ if (msg)
489+ log(L_BUFT, "tx: carrier off %s\n", msg);
490+}
491+
492+static inline void
493+acx_carrier_on(struct net_device *ndev, const char *msg)
494+{
495+ netif_carrier_on(ndev);
496+ if (msg)
497+ log(L_BUFT, "tx: carrier on %s\n", msg);
498+}
499+
500+/* This function does not need locking UNLESS you call it
501+** as acx_set_status(ACX_STATUS_4_ASSOCIATED), bacause this can
502+** wake queue. This can race with stop_queue elsewhere. */
503+void acx_set_status(acx_device_t *adev, u16 status);
504+
505+
506+/***********************************************************************
507+** Communication with firmware
508+*/
509+#define CMD_TIMEOUT_MS(n) (n)
510+#define ACX_CMD_TIMEOUT_DEFAULT CMD_TIMEOUT_MS(50)
511+
512+#if ACX_DEBUG
513+
514+/* We want to log cmd names */
515+int acxpci_s_issue_cmd_timeo_debug(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout, const char* cmdstr);
516+int acxmem_s_issue_cmd_timeo_debug(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout, const char* cmdstr);
517+int acxusb_s_issue_cmd_timeo_debug(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout, const char* cmdstr);
518+static inline int
519+acx_s_issue_cmd_timeo_debug(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout, const char* cmdstr)
520+{
521+ if (IS_MEM(adev))
522+ return acxmem_s_issue_cmd_timeo_debug(adev, cmd, param, len, timeout, cmdstr);
523+ if (IS_PCI(adev))
524+ return acxpci_s_issue_cmd_timeo_debug(adev, cmd, param, len, timeout, cmdstr);
525+ return acxusb_s_issue_cmd_timeo_debug(adev, cmd, param, len, timeout, cmdstr);
526+}
527+#define acx_s_issue_cmd(adev,cmd,param,len) \
528+ acx_s_issue_cmd_timeo_debug(adev,cmd,param,len,ACX_CMD_TIMEOUT_DEFAULT,#cmd)
529+#define acx_s_issue_cmd_timeo(adev,cmd,param,len,timeo) \
530+ acx_s_issue_cmd_timeo_debug(adev,cmd,param,len,timeo,#cmd)
531+int acx_s_configure_debug(acx_device_t *adev, void *pdr, int type, const char* str);
532+#define acx_s_configure(adev,pdr,type) \
533+ acx_s_configure_debug(adev,pdr,type,#type)
534+int acx_s_interrogate_debug(acx_device_t *adev, void *pdr, int type, const char* str);
535+#define acx_s_interrogate(adev,pdr,type) \
536+ acx_s_interrogate_debug(adev,pdr,type,#type)
537+
538+#else
539+
540+int acxpci_s_issue_cmd_timeo(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout);
541+int acxmem_s_issue_cmd_timeo(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout);
542+int acxusb_s_issue_cmd_timeo(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout);
543+static inline int
544+acx_s_issue_cmd_timeo(acx_device_t *adev, unsigned cmd, void *param, unsigned len, unsigned timeout)
545+{
546+ if (IS_MEM(adev))
547+ return acxmem_s_issue_cmd_timeo(adev, cmd, param, len, timeout);
548+ if (IS_PCI(adev))
549+ return acxpci_s_issue_cmd_timeo(adev, cmd, param, len, timeout);
550+ return acxusb_s_issue_cmd_timeo(adev, cmd, param, len, timeout);
551+}
552+static inline int
553+acx_s_issue_cmd(acx_device_t *adev, unsigned cmd, void *param, unsigned len)
554+{
555+ if (IS_MEM(adev))
556+ return acxmem_s_issue_cmd_timeo(adev, cmd, param, len, ACX_CMD_TIMEOUT_DEFAULT);
557+ if (IS_PCI(adev))
558+ return acxpci_s_issue_cmd_timeo(adev, cmd, param, len, ACX_CMD_TIMEOUT_DEFAULT);
559+ return acxusb_s_issue_cmd_timeo(adev, cmd, param, len, ACX_CMD_TIMEOUT_DEFAULT);
560+}
561+int acx_s_configure(acx_device_t *adev, void *pdr, int type);
562+int acx_s_interrogate(acx_device_t *adev, void *pdr, int type);
563+
564+#endif
565+
566+void acx_s_cmd_start_scan(acx_device_t *adev);
567+
568+
569+/***********************************************************************
570+** Ioctls
571+*/
572+int
573+acx111pci_ioctl_info(
574+ struct net_device *ndev,
575+ struct iw_request_info *info,
576+ struct iw_param *vwrq,
577+ char *extra);
578+int
579+acx100pci_ioctl_set_phy_amp_bias(
580+ struct net_device *ndev,
581+ struct iw_request_info *info,
582+ struct iw_param *vwrq,
583+ char *extra);
584+int
585+acx100mem_ioctl_set_phy_amp_bias(
586+ struct net_device *ndev,
587+ struct iw_request_info *info,
588+ struct iw_param *vwrq,
589+ char *extra);
590+
591+
592+/***********************************************************************
593+** /proc
594+*/
595+#ifdef CONFIG_PROC_FS
596+int acx_proc_register_entries(const struct net_device *ndev);
597+int acx_proc_unregister_entries(const struct net_device *ndev);
598+#else
599+static inline int
600+acx_proc_register_entries(const struct net_device *ndev) { return OK; }
601+static inline int
602+acx_proc_unregister_entries(const struct net_device *ndev) { return OK; }
603+#endif
604+
605+
606+/***********************************************************************
607+*/
608+firmware_image_t *acx_s_read_fw(struct device *dev, const char *file, u32 *size);
609+int acxpci_s_upload_radio(acx_device_t *adev);
610+int acxmem_s_upload_radio(acx_device_t *adev);
611+
612+
613+/***********************************************************************
614+** Unsorted yet :)
615+*/
616+int acxpci_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf);
617+int acxmem_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf);
618+int acxusb_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf);
619+static inline int
620+acx_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf)
621+{
622+ if (IS_MEM(adev))
623+ return acxmem_s_read_phy_reg(adev, reg, charbuf);
624+ if (IS_PCI(adev))
625+ return acxpci_s_read_phy_reg(adev, reg, charbuf);
626+ return acxusb_s_read_phy_reg(adev, reg, charbuf);
627+}
628+
629+int acxpci_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value);
630+int acxmem_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value);
631+int acxusb_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value);
632+static inline int
633+acx_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value)
634+{
635+ if (IS_MEM(adev))
636+ return acxmem_s_write_phy_reg(adev, reg, value);
637+ if (IS_PCI(adev))
638+ return acxpci_s_write_phy_reg(adev, reg, value);
639+ return acxusb_s_write_phy_reg(adev, reg, value);
640+}
641+
642+tx_t* acxpci_l_alloc_tx(acx_device_t *adev);
643+tx_t* acxmem_l_alloc_tx(acx_device_t *adev);
644+tx_t* acxusb_l_alloc_tx(acx_device_t *adev);
645+static inline tx_t*
646+acx_l_alloc_tx(acx_device_t *adev)
647+{
648+ if (IS_MEM(adev))
649+ return acxmem_l_alloc_tx(adev);
650+ if (IS_PCI(adev))
651+ return acxpci_l_alloc_tx(adev);
652+ return acxusb_l_alloc_tx(adev);
653+}
654+
655+void acxusb_l_dealloc_tx(tx_t *tx_opaque);
656+void acxmem_l_dealloc_tx(acx_device_t *adev, tx_t *tx_opaque);
657+static inline void
658+acx_l_dealloc_tx(acx_device_t *adev, tx_t *tx_opaque)
659+{
660+#ifdef ACX_MEM
661+ acxmem_l_dealloc_tx (adev, tx_opaque);
662+#else
663+ if (IS_USB(adev))
664+ acxusb_l_dealloc_tx(tx_opaque);
665+#endif
666+}
667+
668+void* acxpci_l_get_txbuf(acx_device_t *adev, tx_t *tx_opaque);
669+void* acxmem_l_get_txbuf(acx_device_t *adev, tx_t *tx_opaque);
670+void* acxusb_l_get_txbuf(acx_device_t *adev, tx_t *tx_opaque);
671+static inline void*
672+acx_l_get_txbuf(acx_device_t *adev, tx_t *tx_opaque)
673+{
674+#if defined (ACX_MEM)
675+ return acxmem_l_get_txbuf(adev, tx_opaque);
676+#else
677+ if (IS_PCI(adev))
678+ return acxpci_l_get_txbuf(adev, tx_opaque);
679+ return acxusb_l_get_txbuf(adev, tx_opaque);
680+#endif
681+}
682+
683+void acxpci_l_tx_data(acx_device_t *adev, tx_t *tx_opaque, int len);
684+void acxmem_l_tx_data(acx_device_t *adev, tx_t *tx_opaque, int len);
685+void acxusb_l_tx_data(acx_device_t *adev, tx_t *tx_opaque, int len);
686+static inline void
687+acx_l_tx_data(acx_device_t *adev, tx_t *tx_opaque, int len)
688+{
689+#if defined (ACX_MEM)
690+ acxmem_l_tx_data(adev, tx_opaque, len);
691+#else
692+ if (IS_PCI(adev))
693+ acxpci_l_tx_data(adev, tx_opaque, len);
694+ else
695+ acxusb_l_tx_data(adev, tx_opaque, len);
696+#endif
697+}
698+
699+static inline wlan_hdr_t*
700+acx_get_wlan_hdr(acx_device_t *adev, const rxbuffer_t *rxbuf)
701+{
702+ return (wlan_hdr_t*)((u8*)&rxbuf->hdr_a3 + adev->phy_header_len);
703+}
704+
705+void acxpci_l_power_led(acx_device_t *adev, int enable);
706+int acxpci_read_eeprom_byte(acx_device_t *adev, u32 addr, u8 *charbuf);
707+unsigned int acxpci_l_clean_txdesc(acx_device_t *adev);
708+void acxpci_l_clean_txdesc_emergency(acx_device_t *adev);
709+int acxpci_s_create_hostdesc_queues(acx_device_t *adev);
710+void acxpci_create_desc_queues(acx_device_t *adev, u32 tx_queue_start, u32 rx_queue_start);
711+void acxpci_free_desc_queues(acx_device_t *adev);
712+char* acxpci_s_proc_diag_output(char *p, acx_device_t *adev);
713+int acxpci_proc_eeprom_output(char *p, acx_device_t *adev);
714+void acxpci_set_interrupt_mask(acx_device_t *adev);
715+int acx100pci_s_set_tx_level(acx_device_t *adev, u8 level_dbm);
716+
717+void acxmem_l_power_led(acx_device_t *adev, int enable);
718+int acxmem_read_eeprom_byte(acx_device_t *adev, u32 addr, u8 *charbuf);
719+unsigned int acxmem_l_clean_txdesc(acx_device_t *adev);
720+void acxmem_l_clean_txdesc_emergency(acx_device_t *adev);
721+int acxmem_s_create_hostdesc_queues(acx_device_t *adev);
722+void acxmem_create_desc_queues(acx_device_t *adev, u32 tx_queue_start, u32 rx_queue_start);
723+void acxmem_free_desc_queues(acx_device_t *adev);
724+char* acxmem_s_proc_diag_output(char *p, acx_device_t *adev);
725+int acxmem_proc_eeprom_output(char *p, acx_device_t *adev);
726+void acxmem_set_interrupt_mask(acx_device_t *adev);
727+int acx100mem_s_set_tx_level(acx_device_t *adev, u8 level_dbm);
728+
729+void acx_s_msleep(int ms);
730+int acx_s_init_mac(acx_device_t *adev);
731+void acx_set_reg_domain(acx_device_t *adev, unsigned char reg_dom_id);
732+void acx_set_timer(acx_device_t *adev, int timeout_us);
733+void acx_update_capabilities(acx_device_t *adev);
734+void acx_s_start(acx_device_t *adev);
735+
736+void acx_s_update_card_settings(acx_device_t *adev);
737+void acx_s_parse_configoption(acx_device_t *adev, const acx111_ie_configoption_t *pcfg);
738+void acx_l_update_ratevector(acx_device_t *adev);
739+
740+void acx_init_task_scheduler(acx_device_t *adev);
741+void acx_schedule_task(acx_device_t *adev, unsigned int set_flag);
742+
743+int acx_e_ioctl_old(struct net_device *ndev, struct ifreq *ifr, int cmd);
744+
745+client_t *acx_l_sta_list_get(acx_device_t *adev, const u8 *address);
746+void acx_l_sta_list_del(acx_device_t *adev, client_t *clt);
747+
748+int acx_l_transmit_disassoc(acx_device_t *adev, client_t *clt);
749+void acx_i_timer(unsigned long a);
750+int acx_s_complete_scan(acx_device_t *adev);
751+
752+struct sk_buff *acx_rxbuf_to_ether(acx_device_t *adev, rxbuffer_t *rxbuf);
753+int acx_ether_to_txbuf(acx_device_t *adev, void *txbuf, const struct sk_buff *skb);
754+
755+u8 acx_signal_determine_quality(u8 signal, u8 noise);
756+
757+void acx_l_process_rxbuf(acx_device_t *adev, rxbuffer_t *rxbuf);
758+void acx_l_handle_txrate_auto(acx_device_t *adev, struct client *txc,
759+ u16 intended_rate, u8 rate100, u16 rate111, u8 error,
760+ int pkts_to_ignore);
761+
762+void acx_dump_bytes(const void *, int);
763+void acx_log_bad_eid(wlan_hdr_t* hdr, int len, wlan_ie_t* ie_ptr);
764+
765+u8 acx_rate111to100(u16);
766+
767+void acx_s_set_defaults(acx_device_t *adev);
768+
769+#if !ACX_DEBUG
770+static inline const char* acx_get_packet_type_string(u16 fc) { return ""; }
771+#else
772+const char* acx_get_packet_type_string(u16 fc);
773+#endif
774+const char* acx_cmd_status_str(unsigned int state);
775+
776+int acx_i_start_xmit(struct sk_buff *skb, struct net_device *ndev);
777+
778+void great_inquisitor(acx_device_t *adev);
779+
780+void acx_s_get_firmware_version(acx_device_t *adev);
781+void acx_display_hardware_details(acx_device_t *adev);
782+
783+int acx_e_change_mtu(struct net_device *ndev, int mtu);
784+struct net_device_stats* acx_e_get_stats(struct net_device *ndev);
785+struct iw_statistics* acx_e_get_wireless_stats(struct net_device *ndev);
786+
787+#ifdef ACX_MEM
788+int __init acxmem_e_init_module(void);
789+void __exit acxmem_e_cleanup_module(void);
790+void acxmem_e_release(struct device *dev);
791+#else
792+int __init acxpci_e_init_module(void);
793+int __init acxusb_e_init_module(void);
794+void __exit acxpci_e_cleanup_module(void);
795+void __exit acxusb_e_cleanup_module(void);
796+#endif
797+int __init acx_cs_init(void);
798+void __exit acx_cs_cleanup(void);
799Index: linux-2.6.22/drivers/net/wireless/acx/acx.h
800===================================================================
801--- /dev/null 1970-01-01 00:00:00.000000000 +0000
802+++ linux-2.6.22/drivers/net/wireless/acx/acx.h 2007-08-23 18:34:19.000000000 +0200
803@@ -0,0 +1,14 @@
804+#if defined(CONFIG_ACX_MEM) && !defined(ACX_MEM)
805+#define ACX_MEM
806+#endif
807+
808+#if defined(CONFIG_ACX_CS) && !defined(ACX_MEM)
809+#define ACX_MEM
810+#endif
811+
812+#include "acx_config.h"
813+#include "wlan_compat.h"
814+#include "wlan_hdr.h"
815+#include "wlan_mgmt.h"
816+#include "acx_struct.h"
817+#include "acx_func.h"
818Index: linux-2.6.22/drivers/net/wireless/acx/acx_hw.h
819===================================================================
820--- /dev/null 1970-01-01 00:00:00.000000000 +0000
821+++ linux-2.6.22/drivers/net/wireless/acx/acx_hw.h 2007-08-23 18:34:19.000000000 +0200
822@@ -0,0 +1,18 @@
823+/*
824+ * Interface for ACX slave memory driver
825+ *
826+ * Copyright (c) 2006 SDG Systems, LLC
827+ *
828+ * GPL
829+ *
830+ */
831+
832+#ifndef _ACX_HW_H
833+#define _ACX_HW_H
834+
835+struct acx_hardware_data {
836+ int (*start_hw)( void );
837+ int (*stop_hw)( void );
838+};
839+
840+#endif /* _ACX_HW_H */
841Index: linux-2.6.22/drivers/net/wireless/acx/acx_struct.h
842===================================================================
843--- /dev/null 1970-01-01 00:00:00.000000000 +0000
844+++ linux-2.6.22/drivers/net/wireless/acx/acx_struct.h 2007-08-23 18:34:19.000000000 +0200
845@@ -0,0 +1,2114 @@
846+/***********************************************************************
847+** Copyright (C) 2003 ACX100 Open Source Project
848+**
849+** The contents of this file are subject to the Mozilla Public
850+** License Version 1.1 (the "License"); you may not use this file
851+** except in compliance with the License. You may obtain a copy of
852+** the License at http://www.mozilla.org/MPL/
853+**
854+** Software distributed under the License is distributed on an "AS
855+** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
856+** implied. See the License for the specific language governing
857+** rights and limitations under the License.
858+**
859+** Alternatively, the contents of this file may be used under the
860+** terms of the GNU Public License version 2 (the "GPL"), in which
861+** case the provisions of the GPL are applicable instead of the
862+** above. If you wish to allow the use of your version of this file
863+** only under the terms of the GPL and not to allow others to use
864+** your version of this file under the MPL, indicate your decision
865+** by deleting the provisions above and replace them with the notice
866+** and other provisions required by the GPL. If you do not delete
867+** the provisions above, a recipient may use your version of this
868+** file under either the MPL or the GPL.
869+** ---------------------------------------------------------------------
870+** Inquiries regarding the ACX100 Open Source Project can be
871+** made directly to:
872+**
873+** acx100-users@lists.sf.net
874+** http://acx100.sf.net
875+** ---------------------------------------------------------------------
876+*/
877+
878+/***********************************************************************
879+** Forward declarations of types
880+*/
881+typedef struct tx tx_t;
882+typedef struct acx_device acx_device_t;
883+typedef struct client client_t;
884+typedef struct rxdesc rxdesc_t;
885+typedef struct txdesc txdesc_t;
886+typedef struct rxhostdesc rxhostdesc_t;
887+typedef struct txhostdesc txhostdesc_t;
888+
889+
890+/***********************************************************************
891+** Debug / log functionality
892+*/
893+enum {
894+ L_LOCK = (ACX_DEBUG>1)*0x0001, /* locking debug log */
895+ L_INIT = (ACX_DEBUG>0)*0x0002, /* special card initialization logging */
896+ L_IRQ = (ACX_DEBUG>0)*0x0004, /* interrupt stuff */
897+ L_ASSOC = (ACX_DEBUG>0)*0x0008, /* assocation (network join) and station log */
898+ L_FUNC = (ACX_DEBUG>1)*0x0020, /* logging of function enter / leave */
899+ L_XFER = (ACX_DEBUG>1)*0x0080, /* logging of transfers and mgmt */
900+ L_DATA = (ACX_DEBUG>1)*0x0100, /* logging of transfer data */
901+ L_DEBUG = (ACX_DEBUG>1)*0x0200, /* log of debug info */
902+ L_IOCTL = (ACX_DEBUG>0)*0x0400, /* log ioctl calls */
903+ L_CTL = (ACX_DEBUG>1)*0x0800, /* log of low-level ctl commands */
904+ L_BUFR = (ACX_DEBUG>1)*0x1000, /* debug rx buffer mgmt (ring buffer etc.) */
905+ L_XFER_BEACON = (ACX_DEBUG>1)*0x2000, /* also log beacon packets */
906+ L_BUFT = (ACX_DEBUG>1)*0x4000, /* debug tx buffer mgmt (ring buffer etc.) */
907+ L_USBRXTX = (ACX_DEBUG>0)*0x8000, /* debug USB rx/tx operations */
908+ L_BUF = L_BUFR + L_BUFT,
909+ L_ANY = 0xffff
910+};
911+
912+#if ACX_DEBUG
913+extern unsigned int acx_debug;
914+#else
915+enum { acx_debug = 0 };
916+#endif
917+
918+
919+/***********************************************************************
920+** Random helpers
921+*/
922+#define ACX_PACKED __attribute__ ((packed))
923+
924+#define VEC_SIZE(a) (sizeof(a)/sizeof(a[0]))
925+
926+/* Use worker_queues for 2.5/2.6 kernels and queue tasks for 2.4 kernels
927+ (used for the 'bottom half' of the interrupt routine) */
928+
929+#include <linux/workqueue.h>
930+#define USE_WORKER_TASKS
931+#define WORK_STRUCT struct work_struct
932+#define SCHEDULE_WORK schedule_work
933+#define FLUSH_SCHEDULED_WORK flush_scheduled_work
934+
935+
936+/***********************************************************************
937+** Constants
938+*/
939+#define OK 0
940+#define NOT_OK 1
941+
942+/* The supported chip models */
943+#define CHIPTYPE_ACX100 1
944+#define CHIPTYPE_ACX111 2
945+
946+#define IS_ACX100(adev) ((adev)->chip_type == CHIPTYPE_ACX100)
947+#define IS_ACX111(adev) ((adev)->chip_type == CHIPTYPE_ACX111)
948+
949+/* Supported interfaces */
950+#define DEVTYPE_PCI 0
951+#define DEVTYPE_USB 1
952+#define DEVTYPE_MEM 2
953+
954+#if !defined(CONFIG_ACX_PCI) && !defined(CONFIG_ACX_USB) && !defined(CONFIG_ACX_MEM) && !defined(CONFIG_ACX_CS)
955+#error Driver must include PCI, USB, PCMCIA or memory mapped interface support. You selected none of them.
956+#endif
957+
958+#if defined(CONFIG_ACX_PCI)
959+ #if !defined(CONFIG_ACX_USB)
960+ #define IS_PCI(adev) 1
961+ #else
962+ #define IS_PCI(adev) ((adev)->dev_type == DEVTYPE_PCI)
963+ #endif
964+#else
965+ #define IS_PCI(adev) 0
966+#endif
967+
968+#if defined(CONFIG_ACX_USB)
969+ #if !defined(CONFIG_ACX_PCI)
970+ #define IS_USB(adev) 1
971+ #else
972+ #define IS_USB(adev) ((adev)->dev_type == DEVTYPE_USB)
973+ #endif
974+#else
975+ #define IS_USB(adev) 0
976+#endif
977+
978+#if defined(CONFIG_ACX_MEM) || defined(CONFIG_ACX_CS)
979+ #define IS_MEM(adev) 1
980+#else
981+ #define IS_MEM(adev) 0
982+#endif
983+
984+/* Driver defaults */
985+#define DEFAULT_DTIM_INTERVAL 10
986+/* used to be 2048, but FreeBSD driver changed it to 4096 to work properly
987+** in noisy wlans */
988+#define DEFAULT_MSDU_LIFETIME 4096
989+#define DEFAULT_RTS_THRESHOLD 2312 /* max. size: disable RTS mechanism */
990+#define DEFAULT_BEACON_INTERVAL 100
991+
992+#define ACX100_BAP_DATALEN_MAX 4096
993+#define ACX100_RID_GUESSING_MAXLEN 2048 /* I'm not really sure */
994+#define ACX100_RIDDATA_MAXLEN ACX100_RID_GUESSING_MAXLEN
995+
996+/* Support Constants */
997+/* Radio type names, found in Win98 driver's TIACXLN.INF */
998+#define RADIO_MAXIM_0D 0x0d
999+#define RADIO_RFMD_11 0x11
1000+#define RADIO_RALINK_15 0x15
1001+/* used in ACX111 cards (WG311v2, WL-121, ...): */
1002+#define RADIO_RADIA_16 0x16
1003+/* most likely *sometimes* used in ACX111 cards: */
1004+#define RADIO_UNKNOWN_17 0x17
1005+/* FwRad19.bin was found in a Safecom driver; must be an ACX111 radio: */
1006+#define RADIO_UNKNOWN_19 0x19
1007+#define RADIO_UNKNOWN_1B 0x1b /* radio in SafeCom SWLUT-54125 USB adapter; entirely unknown!! */
1008+
1009+/* Controller Commands */
1010+/* can be found in table cmdTable in firmware "Rev. 1.5.0" (FW150) */
1011+#define ACX1xx_CMD_RESET 0x00
1012+#define ACX1xx_CMD_INTERROGATE 0x01
1013+#define ACX1xx_CMD_CONFIGURE 0x02
1014+#define ACX1xx_CMD_ENABLE_RX 0x03
1015+#define ACX1xx_CMD_ENABLE_TX 0x04
1016+#define ACX1xx_CMD_DISABLE_RX 0x05
1017+#define ACX1xx_CMD_DISABLE_TX 0x06
1018+#define ACX1xx_CMD_FLUSH_QUEUE 0x07
1019+#define ACX1xx_CMD_SCAN 0x08
1020+#define ACX1xx_CMD_STOP_SCAN 0x09
1021+#define ACX1xx_CMD_CONFIG_TIM 0x0a
1022+#define ACX1xx_CMD_JOIN 0x0b
1023+#define ACX1xx_CMD_WEP_MGMT 0x0c
1024+#ifdef OLD_FIRMWARE_VERSIONS
1025+#define ACX100_CMD_HALT 0x0e /* mapped to unknownCMD in FW150 */
1026+#else
1027+#define ACX1xx_CMD_MEM_READ 0x0d
1028+#define ACX1xx_CMD_MEM_WRITE 0x0e
1029+#endif
1030+#define ACX1xx_CMD_SLEEP 0x0f
1031+#define ACX1xx_CMD_WAKE 0x10
1032+#define ACX1xx_CMD_UNKNOWN_11 0x11 /* mapped to unknownCMD in FW150 */
1033+#define ACX100_CMD_INIT_MEMORY 0x12
1034+#define ACX1FF_CMD_DISABLE_RADIO 0x12 /* new firmware? TNETW1450? */
1035+#define ACX1xx_CMD_CONFIG_BEACON 0x13
1036+#define ACX1xx_CMD_CONFIG_PROBE_RESPONSE 0x14
1037+#define ACX1xx_CMD_CONFIG_NULL_DATA 0x15
1038+#define ACX1xx_CMD_CONFIG_PROBE_REQUEST 0x16
1039+#define ACX1xx_CMD_FCC_TEST 0x17
1040+#define ACX1xx_CMD_RADIOINIT 0x18
1041+#define ACX111_CMD_RADIOCALIB 0x19
1042+#define ACX1FF_CMD_NOISE_HISTOGRAM 0x1c /* new firmware? TNETW1450? */
1043+#define ACX1FF_CMD_RX_RESET 0x1d /* new firmware? TNETW1450? */
1044+#define ACX1FF_CMD_LNA_CONTROL 0x20 /* new firmware? TNETW1450? */
1045+#define ACX1FF_CMD_CONTROL_DBG_TRACE 0x21 /* new firmware? TNETW1450? */
1046+
1047+/* 'After Interrupt' Commands */
1048+#define ACX_AFTER_IRQ_CMD_STOP_SCAN 0x01
1049+#define ACX_AFTER_IRQ_CMD_ASSOCIATE 0x02
1050+#define ACX_AFTER_IRQ_CMD_RADIO_RECALIB 0x04
1051+#define ACX_AFTER_IRQ_UPDATE_CARD_CFG 0x08
1052+#define ACX_AFTER_IRQ_TX_CLEANUP 0x10
1053+#define ACX_AFTER_IRQ_COMPLETE_SCAN 0x20
1054+#define ACX_AFTER_IRQ_RESTART_SCAN 0x40
1055+
1056+/***********************************************************************
1057+** Tx/Rx buffer sizes and watermarks
1058+**
1059+** This will alloc and use DMAable buffers of
1060+** WLAN_A4FR_MAXLEN_WEP_FCS * (RX_CNT + TX_CNT) bytes
1061+** RX/TX_CNT=32 -> ~150k DMA buffers
1062+** RX/TX_CNT=16 -> ~75k DMA buffers
1063+**
1064+** 2005-10-10: reduced memory usage by lowering both to 16
1065+*/
1066+#define RX_CNT 16
1067+#define TX_CNT 16
1068+
1069+/* we clean up txdescs when we have N free txdesc: */
1070+#define TX_CLEAN_BACKLOG (TX_CNT/4)
1071+#define TX_START_CLEAN (TX_CNT - TX_CLEAN_BACKLOG)
1072+#define TX_EMERG_CLEAN 2
1073+/* we stop queue if we have < N free txbufs: */
1074+#define TX_STOP_QUEUE 3
1075+/* we start queue if we have >= N free txbufs: */
1076+#define TX_START_QUEUE 5
1077+
1078+/***********************************************************************
1079+** Interrogate/Configure cmd constants
1080+**
1081+** NB: length includes JUST the data part of the IE
1082+** (does not include size of the (type,len) pair)
1083+**
1084+** TODO: seems that acx100, acx100usb, acx111 have some differences,
1085+** fix code with regard to this!
1086+*/
1087+
1088+#define DEF_IE(name, val, len) enum { ACX##name=val, ACX##name##_LEN=len }
1089+
1090+/* Information Elements: Network Parameters, Static Configuration Entities */
1091+/* these are handled by real_cfgtable in firmware "Rev 1.5.0" (FW150) */
1092+DEF_IE(1xx_IE_UNKNOWN_00 ,0x0000, -1); /* mapped to cfgInvalid in FW150 */
1093+DEF_IE(100_IE_ACX_TIMER ,0x0001, 0x10);
1094+DEF_IE(1xx_IE_POWER_MGMT ,0x0002, 0x06); /* TNETW1450: length 0x18!! */
1095+DEF_IE(1xx_IE_QUEUE_CONFIG ,0x0003, 0x1c);
1096+DEF_IE(100_IE_BLOCK_SIZE ,0x0004, 0x02);
1097+DEF_IE(1FF_IE_SLOT_TIME ,0x0004, 0x08); /* later firmware versions only? */
1098+DEF_IE(1xx_IE_MEMORY_CONFIG_OPTIONS ,0x0005, 0x14);
1099+DEF_IE(1FF_IE_QUEUE_HEAD ,0x0005, 0x14 /* FIXME: length? */);
1100+DEF_IE(1xx_IE_RATE_FALLBACK ,0x0006, 0x01); /* TNETW1450: length 2 */
1101+DEF_IE(100_IE_WEP_OPTIONS ,0x0007, 0x03);
1102+DEF_IE(111_IE_RADIO_BAND ,0x0007, -1);
1103+DEF_IE(1FF_IE_TIMING_CFG ,0x0007, -1); /* later firmware versions; TNETW1450 only? */
1104+DEF_IE(100_IE_SSID ,0x0008, 0x20); /* huh? */
1105+DEF_IE(1xx_IE_MEMORY_MAP ,0x0008, 0x28); /* huh? TNETW1450 has length 0x40!! */
1106+DEF_IE(1xx_IE_SCAN_STATUS ,0x0009, 0x04); /* mapped to cfgInvalid in FW150 */
1107+DEF_IE(1xx_IE_ASSOC_ID ,0x000a, 0x02);
1108+DEF_IE(1xx_IE_UNKNOWN_0B ,0x000b, -1); /* mapped to cfgInvalid in FW150 */
1109+DEF_IE(1FF_IE_TX_POWER_LEVEL_TABLE ,0x000b, 0x18); /* later firmware versions; TNETW1450 only? */
1110+DEF_IE(100_IE_UNKNOWN_0C ,0x000c, -1); /* very small implementation in FW150! */
1111+/* ACX100 has an equivalent struct in the cmd mailbox directly after reset.
1112+ * 0x14c seems extremely large, will trash stack on failure (memset!)
1113+ * in case of small input struct --> OOPS! */
1114+DEF_IE(111_IE_CONFIG_OPTIONS ,0x000c, 0x14c);
1115+DEF_IE(1xx_IE_FWREV ,0x000d, 0x18);
1116+DEF_IE(1xx_IE_FCS_ERROR_COUNT ,0x000e, 0x04);
1117+DEF_IE(1xx_IE_MEDIUM_USAGE ,0x000f, 0x08);
1118+DEF_IE(1xx_IE_RXCONFIG ,0x0010, 0x04);
1119+DEF_IE(100_IE_UNKNOWN_11 ,0x0011, -1); /* NONBINARY: large implementation in FW150! link quality readings or so? */
1120+DEF_IE(111_IE_QUEUE_THRESH ,0x0011, -1);
1121+DEF_IE(100_IE_UNKNOWN_12 ,0x0012, -1); /* NONBINARY: VERY large implementation in FW150!! */
1122+DEF_IE(111_IE_BSS_POWER_SAVE ,0x0012, /* -1 */ 2);
1123+DEF_IE(1xx_IE_FIRMWARE_STATISTICS ,0x0013, 0x9c); /* TNETW1450: length 0x134!! */
1124+DEF_IE(1FF_IE_RX_INTR_CONFIG ,0x0014, 0x14); /* later firmware versions, TNETW1450 only? */
1125+DEF_IE(1xx_IE_FEATURE_CONFIG ,0x0015, 0x08);
1126+DEF_IE(111_IE_KEY_CHOOSE ,0x0016, 0x04); /* for rekeying. really len=4?? */
1127+DEF_IE(1FF_IE_MISC_CONFIG_TABLE ,0x0017, 0x04); /* later firmware versions, TNETW1450 only? */
1128+DEF_IE(1FF_IE_WONE_CONFIG ,0x0018, -1); /* later firmware versions, TNETW1450 only? */
1129+DEF_IE(1FF_IE_TID_CONFIG ,0x001a, 0x2c); /* later firmware versions, TNETW1450 only? */
1130+DEF_IE(1FF_IE_CALIB_ASSESSMENT ,0x001e, 0x04); /* later firmware versions, TNETW1450 only? */
1131+DEF_IE(1FF_IE_BEACON_FILTER_OPTIONS ,0x001f, 0x02); /* later firmware versions, TNETW1450 only? */
1132+DEF_IE(1FF_IE_LOW_RSSI_THRESH_OPT ,0x0020, 0x04); /* later firmware versions, TNETW1450 only? */
1133+DEF_IE(1FF_IE_NOISE_HISTOGRAM_RESULTS ,0x0021, 0x30); /* later firmware versions, TNETW1450 only? */
1134+DEF_IE(1FF_IE_PACKET_DETECT_THRESH ,0x0023, 0x04); /* later firmware versions, TNETW1450 only? */
1135+DEF_IE(1FF_IE_TX_CONFIG_OPTIONS ,0x0024, 0x04); /* later firmware versions, TNETW1450 only? */
1136+DEF_IE(1FF_IE_CCA_THRESHOLD ,0x0025, 0x02); /* later firmware versions, TNETW1450 only? */
1137+DEF_IE(1FF_IE_EVENT_MASK ,0x0026, 0x08); /* later firmware versions, TNETW1450 only? */
1138+DEF_IE(1FF_IE_DTIM_PERIOD ,0x0027, 0x02); /* later firmware versions, TNETW1450 only? */
1139+DEF_IE(1FF_IE_ACI_CONFIG_SET ,0x0029, 0x06); /* later firmware versions; maybe TNETW1450 only? */
1140+DEF_IE(1FF_IE_EEPROM_VER ,0x0030, 0x04); /* later firmware versions; maybe TNETW1450 only? */
1141+DEF_IE(1xx_IE_DOT11_STATION_ID ,0x1001, 0x06);
1142+DEF_IE(100_IE_DOT11_UNKNOWN_1002 ,0x1002, -1); /* mapped to cfgInvalid in FW150 */
1143+DEF_IE(111_IE_DOT11_FRAG_THRESH ,0x1002, -1); /* mapped to cfgInvalid in FW150; TNETW1450 has length 2!! */
1144+DEF_IE(100_IE_DOT11_BEACON_PERIOD ,0x1003, 0x02); /* mapped to cfgInvalid in FW150 */
1145+DEF_IE(1xx_IE_DOT11_DTIM_PERIOD ,0x1004, -1); /* mapped to cfgInvalid in FW150 */
1146+DEF_IE(1FF_IE_DOT11_MAX_RX_LIFETIME ,0x1004, -1); /* later firmware versions; maybe TNETW1450 only? */
1147+DEF_IE(1xx_IE_DOT11_SHORT_RETRY_LIMIT ,0x1005, 0x01); /* TNETW1450: length 2 */
1148+DEF_IE(1xx_IE_DOT11_LONG_RETRY_LIMIT ,0x1006, 0x01); /* TNETW1450: length 2 */
1149+DEF_IE(100_IE_DOT11_WEP_DEFAULT_KEY_WRITE ,0x1007, 0x20); /* configure default keys; TNETW1450 has length 0x24!! */
1150+DEF_IE(1xx_IE_DOT11_MAX_XMIT_MSDU_LIFETIME ,0x1008, 0x04);
1151+DEF_IE(1xx_IE_DOT11_GROUP_ADDR ,0x1009, -1);
1152+DEF_IE(1xx_IE_DOT11_CURRENT_REG_DOMAIN ,0x100a, 0x02);
1153+/* It's harmless to have larger struct. Use USB case always. */
1154+DEF_IE(1xx_IE_DOT11_CURRENT_ANTENNA ,0x100b, 0x02); /* in fact len=1 for PCI */
1155+DEF_IE(1xx_IE_DOT11_UNKNOWN_100C ,0x100c, -1); /* mapped to cfgInvalid in FW150 */
1156+DEF_IE(1xx_IE_DOT11_TX_POWER_LEVEL ,0x100d, 0x01); /* TNETW1450 has length 2!! */
1157+DEF_IE(1xx_IE_DOT11_CURRENT_CCA_MODE ,0x100e, 0x02); /* in fact len=1 for PCI */
1158+/* USB doesn't return anything - len==0?! */
1159+DEF_IE(100_IE_DOT11_ED_THRESHOLD ,0x100f, 0x04);
1160+DEF_IE(1xx_IE_DOT11_WEP_DEFAULT_KEY_SET ,0x1010, 0x01); /* set default key ID; TNETW1450: length 2 */
1161+DEF_IE(100_IE_DOT11_UNKNOWN_1011 ,0x1011, -1); /* mapped to cfgInvalid in FW150 */
1162+DEF_IE(1FF_IE_DOT11_CURR_5GHZ_REGDOM ,0x1011, -1); /* later firmware versions; maybe TNETW1450 only? */
1163+DEF_IE(100_IE_DOT11_UNKNOWN_1012 ,0x1012, -1); /* mapped to cfgInvalid in FW150 */
1164+DEF_IE(100_IE_DOT11_UNKNOWN_1013 ,0x1013, -1); /* mapped to cfgInvalid in FW150 */
1165+
1166+#if 0
1167+/* Experimentally obtained on acx100, fw 1.9.8.b
1168+** -1 means that fw returned 'invalid IE'
1169+** 0200 FC00 nnnn... are test read contents: u16 type, u16 len, data
1170+** (AA are poison bytes marking bytes not written by fw)
1171+**
1172+** Looks like acx100 fw does not update len field (thus len=256-4=FC here)
1173+** A number of IEs seem to trash type,len fields
1174+** IEs marked 'huge' return gobs of data (no poison bytes remain)
1175+*/
1176+DEF_IE(100_IE_INVAL_00, 0x0000, -1);
1177+DEF_IE(100_IE_INVAL_01, 0x0001, -1); /* IE_ACX_TIMER, len=16 on older fw */
1178+DEF_IE(100_IE_POWER_MGMT, 0x0002, 4); /* 0200FC00 00040000 AAAAAAAA */
1179+DEF_IE(100_IE_QUEUE_CONFIG, 0x0003, 28); /* 0300FC00 48060000 9CAD0000 0101AAAA DCB00000 E4B00000 9CAA0000 00AAAAAA */
1180+DEF_IE(100_IE_BLOCK_SIZE, 0x0004, 2); /* 0400FC00 0001AAAA AAAAAAAA AAAAAAAA */
1181+/* write only: */
1182+DEF_IE(100_IE_MEMORY_CONFIG_OPTIONS, 0x0005, 20);
1183+DEF_IE(100_IE_RATE_FALLBACK, 0x0006, 1); /* 0600FC00 00AAAAAA AAAAAAAA AAAAAAAA */
1184+/* write only: */
1185+DEF_IE(100_IE_WEP_OPTIONS, 0x0007, 3);
1186+DEF_IE(100_IE_MEMORY_MAP, 0x0008, 40); /* huge: 0800FC00 30000000 6CA20000 70A20000... */
1187+/* gives INVAL on read: */
1188+DEF_IE(100_IE_SCAN_STATUS, 0x0009, -1);
1189+DEF_IE(100_IE_ASSOC_ID, 0x000a, 2); /* huge: 0A00FC00 00000000 01040800 00000000... */
1190+DEF_IE(100_IE_INVAL_0B, 0x000b, -1);
1191+/* 'command rejected': */
1192+DEF_IE(100_IE_CONFIG_OPTIONS, 0x000c, -3);
1193+DEF_IE(100_IE_FWREV, 0x000d, 24); /* 0D00FC00 52657620 312E392E 382E6200 AAAAAAAA AAAAAAAA 05050201 AAAAAAAA */
1194+DEF_IE(100_IE_FCS_ERROR_COUNT, 0x000e, 4);
1195+DEF_IE(100_IE_MEDIUM_USAGE, 0x000f, 8); /* E41F0000 2D780300 FCC91300 AAAAAAAA */
1196+DEF_IE(100_IE_RXCONFIG, 0x0010, 4); /* 1000FC00 00280000 AAAAAAAA AAAAAAAA */
1197+DEF_IE(100_IE_QUEUE_THRESH, 0x0011, 12); /* 1100FC00 AAAAAAAA 00000000 00000000 */
1198+DEF_IE(100_IE_BSS_POWER_SAVE, 0x0012, 1); /* 1200FC00 00AAAAAA AAAAAAAA AAAAAAAA */
1199+/* read only, variable len */
1200+DEF_IE(100_IE_FIRMWARE_STATISTICS, 0x0013, 256); /* 0000AC00 00000000 ... */
1201+DEF_IE(100_IE_INT_CONFIG, 0x0014, 20); /* 00000000 00000000 00000000 00000000 5D74D105 00000000 AAAAAAAA AAAAAAAA */
1202+DEF_IE(100_IE_FEATURE_CONFIG, 0x0015, 8); /* 1500FC00 16000000 AAAAAAAA AAAAAAAA */
1203+/* returns 'invalid MAC': */
1204+DEF_IE(100_IE_KEY_CHOOSE, 0x0016, -4);
1205+DEF_IE(100_IE_INVAL_17, 0x0017, -1);
1206+DEF_IE(100_IE_UNKNOWN_18, 0x0018, 0); /* null len?! 1800FC00 AAAAAAAA AAAAAAAA AAAAAAAA */
1207+DEF_IE(100_IE_UNKNOWN_19, 0x0019, 256); /* huge: 1900FC00 9C1F00EA FEFFFFEA FEFFFFEA... */
1208+DEF_IE(100_IE_INVAL_1A, 0x001A, -1);
1209+
1210+DEF_IE(100_IE_DOT11_INVAL_1000, 0x1000, -1);
1211+DEF_IE(100_IE_DOT11_STATION_ID, 0x1001, 6); /* huge: 0110FC00 58B10E2F 03000000 00000000... */
1212+DEF_IE(100_IE_DOT11_INVAL_1002, 0x1002, -1);
1213+DEF_IE(100_IE_DOT11_INVAL_1003, 0x1003, -1);
1214+DEF_IE(100_IE_DOT11_INVAL_1004, 0x1004, -1);
1215+DEF_IE(100_IE_DOT11_SHORT_RETRY_LIMIT, 0x1005, 1);
1216+DEF_IE(100_IE_DOT11_LONG_RETRY_LIMIT, 0x1006, 1);
1217+/* write only: */
1218+DEF_IE(100_IE_DOT11_WEP_DEFAULT_KEY_WRITE, 0x1007, 32);
1219+DEF_IE(100_IE_DOT11_MAX_XMIT_MSDU_LIFETIME, 0x1008, 4); /* huge: 0810FC00 00020000 F4010000 00000000... */
1220+/* undoc but returns something */
1221+DEF_IE(100_IE_DOT11_GROUP_ADDR, 0x1009, 12); /* huge: 0910FC00 00000000 00000000 00000000... */
1222+DEF_IE(100_IE_DOT11_CURRENT_REG_DOMAIN, 0x100a, 1); /* 0A10FC00 30AAAAAA AAAAAAAA AAAAAAAA */
1223+DEF_IE(100_IE_DOT11_CURRENT_ANTENNA, 0x100b, 1); /* 0B10FC00 8FAAAAAA AAAAAAAA AAAAAAAA */
1224+DEF_IE(100_IE_DOT11_INVAL_100C, 0x100c, -1);
1225+DEF_IE(100_IE_DOT11_TX_POWER_LEVEL, 0x100d, 2); /* 00000000 0100AAAA AAAAAAAA AAAAAAAA */
1226+DEF_IE(100_IE_DOT11_CURRENT_CCA_MODE, 0x100e, 1); /* 0E10FC00 0DAAAAAA AAAAAAAA AAAAAAAA */
1227+DEF_IE(100_IE_DOT11_ED_THRESHOLD, 0x100f, 4); /* 0F10FC00 70000000 AAAAAAAA AAAAAAAA */
1228+/* set default key ID */
1229+DEF_IE(100_IE_DOT11_WEP_DEFAULT_KEY_SET, 0x1010, 1); /* 1010FC00 00AAAAAA AAAAAAAA AAAAAAAA */
1230+DEF_IE(100_IE_DOT11_INVAL_1011, 0x1011, -1);
1231+DEF_IE(100_IE_DOT11_INVAL_1012, 0x1012, -1);
1232+DEF_IE(100_IE_DOT11_INVAL_1013, 0x1013, -1);
1233+DEF_IE(100_IE_DOT11_UNKNOWN_1014, 0x1014, 256); /* huge */
1234+DEF_IE(100_IE_DOT11_UNKNOWN_1015, 0x1015, 256); /* huge */
1235+DEF_IE(100_IE_DOT11_UNKNOWN_1016, 0x1016, 256); /* huge */
1236+DEF_IE(100_IE_DOT11_UNKNOWN_1017, 0x1017, 256); /* huge */
1237+DEF_IE(100_IE_DOT11_UNKNOWN_1018, 0x1018, 256); /* huge */
1238+DEF_IE(100_IE_DOT11_UNKNOWN_1019, 0x1019, 256); /* huge */
1239+#endif
1240+
1241+#if 0
1242+/* Experimentally obtained on PCI acx111 Xterasys XN-2522g, fw 1.2.1.34
1243+** -1 means that fw returned 'invalid IE'
1244+** 0400 0800 nnnn... are test read contents: u16 type, u16 len, data
1245+** (AA are poison bytes marking bytes not written by fw)
1246+**
1247+** Looks like acx111 fw reports real len!
1248+*/
1249+DEF_IE(111_IE_INVAL_00, 0x0000, -1);
1250+DEF_IE(111_IE_INVAL_01, 0x0001, -1);
1251+DEF_IE(111_IE_POWER_MGMT, 0x0002, 12);
1252+/* write only, variable len: 12 + rxqueue_cnt*8 + txqueue_cnt*4: */
1253+DEF_IE(111_IE_MEMORY_CONFIG, 0x0003, 24);
1254+DEF_IE(111_IE_BLOCK_SIZE, 0x0004, 8); /* 04000800 AA00AAAA AAAAAAAA */
1255+/* variable len: 8 + rxqueue_cnt*8 + txqueue_cnt*8: */
1256+DEF_IE(111_IE_QUEUE_HEAD, 0x0005, 24);
1257+DEF_IE(111_IE_RATE_FALLBACK, 0x0006, 1);
1258+/* acx100 name:WEP_OPTIONS */
1259+/* said to have len:1 (not true, actually returns 12 bytes): */
1260+DEF_IE(111_IE_RADIO_BAND, 0x0007, 12); /* 07000C00 AAAA1F00 FF03AAAA AAAAAAAA */
1261+DEF_IE(111_IE_MEMORY_MAP, 0x0008, 48);
1262+/* said to have len:4, but gives INVAL on read: */
1263+DEF_IE(111_IE_SCAN_STATUS, 0x0009, -1);
1264+DEF_IE(111_IE_ASSOC_ID, 0x000a, 2);
1265+/* write only, len is not known: */
1266+DEF_IE(111_IE_UNKNOWN_0B, 0x000b, 0);
1267+/* read only, variable len. I see 67 byte reads: */
1268+DEF_IE(111_IE_CONFIG_OPTIONS, 0x000c, 67); /* 0C004300 01160500 ... */
1269+DEF_IE(111_IE_FWREV, 0x000d, 24);
1270+DEF_IE(111_IE_FCS_ERROR_COUNT, 0x000e, 4);
1271+DEF_IE(111_IE_MEDIUM_USAGE, 0x000f, 8);
1272+DEF_IE(111_IE_RXCONFIG, 0x0010, 4);
1273+DEF_IE(111_IE_QUEUE_THRESH, 0x0011, 12);
1274+DEF_IE(111_IE_BSS_POWER_SAVE, 0x0012, 1);
1275+/* read only, variable len. I see 240 byte reads: */
1276+DEF_IE(111_IE_FIRMWARE_STATISTICS, 0x0013, 240); /* 1300F000 00000000 ... */
1277+/* said to have len=17. looks like fw pads it to 20: */
1278+DEF_IE(111_IE_INT_CONFIG, 0x0014, 20); /* 14001400 00000000 00000000 00000000 00000000 00000000 */
1279+DEF_IE(111_IE_FEATURE_CONFIG, 0x0015, 8);
1280+/* said to be name:KEY_INDICATOR, len:4, but gives INVAL on read: */
1281+DEF_IE(111_IE_KEY_CHOOSE, 0x0016, -1);
1282+/* said to have len:4, but in fact returns 8: */
1283+DEF_IE(111_IE_MAX_USB_XFR, 0x0017, 8); /* 17000800 00014000 00000000 */
1284+DEF_IE(111_IE_INVAL_18, 0x0018, -1);
1285+DEF_IE(111_IE_INVAL_19, 0x0019, -1);
1286+/* undoc but returns something: */
1287+/* huh, fw indicates len=20 but uses 4 more bytes in buffer??? */
1288+DEF_IE(111_IE_UNKNOWN_1A, 0x001A, 20); /* 1A001400 AA00AAAA 0000020F FF030000 00020000 00000007 04000000 */
1289+
1290+DEF_IE(111_IE_DOT11_INVAL_1000, 0x1000, -1);
1291+DEF_IE(111_IE_DOT11_STATION_ID, 0x1001, 6);
1292+DEF_IE(111_IE_DOT11_FRAG_THRESH, 0x1002, 2);
1293+/* acx100 only? gives INVAL on read: */
1294+DEF_IE(111_IE_DOT11_BEACON_PERIOD, 0x1003, -1);
1295+/* said to be MAX_RECV_MSDU_LIFETIME: */
1296+DEF_IE(111_IE_DOT11_DTIM_PERIOD, 0x1004, 4);
1297+DEF_IE(111_IE_DOT11_SHORT_RETRY_LIMIT, 0x1005, 1);
1298+DEF_IE(111_IE_DOT11_LONG_RETRY_LIMIT, 0x1006, 1);
1299+/* acx100 only? gives INVAL on read: */
1300+DEF_IE(111_IE_DOT11_WEP_DEFAULT_KEY_WRITE, 0x1007, -1);
1301+DEF_IE(111_IE_DOT11_MAX_XMIT_MSDU_LIFETIME, 0x1008, 4);
1302+/* undoc but returns something. maybe it's 2 multicast MACs to listen to? */
1303+DEF_IE(111_IE_DOT11_GROUP_ADDR, 0x1009, 12); /* 09100C00 00000000 00000000 00000000 */
1304+DEF_IE(111_IE_DOT11_CURRENT_REG_DOMAIN, 0x100a, 1);
1305+DEF_IE(111_IE_DOT11_CURRENT_ANTENNA, 0x100b, 2);
1306+DEF_IE(111_IE_DOT11_INVAL_100C, 0x100c, -1);
1307+DEF_IE(111_IE_DOT11_TX_POWER_LEVEL, 0x100d, 1);
1308+/* said to have len=1 but gives INVAL on read: */
1309+DEF_IE(111_IE_DOT11_CURRENT_CCA_MODE, 0x100e, -1);
1310+/* said to have len=4 but gives INVAL on read: */
1311+DEF_IE(111_IE_DOT11_ED_THRESHOLD, 0x100f, -1);
1312+/* set default key ID. write only: */
1313+DEF_IE(111_IE_DOT11_WEP_DEFAULT_KEY_SET, 0x1010, 1);
1314+/* undoc but returns something: */
1315+DEF_IE(111_IE_DOT11_UNKNOWN_1011, 0x1011, 1); /* 11100100 20 */
1316+DEF_IE(111_IE_DOT11_INVAL_1012, 0x1012, -1);
1317+DEF_IE(111_IE_DOT11_INVAL_1013, 0x1013, -1);
1318+#endif
1319+
1320+
1321+/***********************************************************************
1322+**Information Frames Structures
1323+*/
1324+
1325+/* Used in beacon frames and the like */
1326+#define DOT11RATEBYTE_1 (1*2)
1327+#define DOT11RATEBYTE_2 (2*2)
1328+#define DOT11RATEBYTE_5_5 (5*2+1)
1329+#define DOT11RATEBYTE_11 (11*2)
1330+#define DOT11RATEBYTE_22 (22*2)
1331+#define DOT11RATEBYTE_6_G (6*2)
1332+#define DOT11RATEBYTE_9_G (9*2)
1333+#define DOT11RATEBYTE_12_G (12*2)
1334+#define DOT11RATEBYTE_18_G (18*2)
1335+#define DOT11RATEBYTE_24_G (24*2)
1336+#define DOT11RATEBYTE_36_G (36*2)
1337+#define DOT11RATEBYTE_48_G (48*2)
1338+#define DOT11RATEBYTE_54_G (54*2)
1339+#define DOT11RATEBYTE_BASIC 0x80 /* flags rates included in basic rate set */
1340+
1341+
1342+/***********************************************************************
1343+** rxbuffer_t
1344+**
1345+** This is the format of rx data returned by acx
1346+*/
1347+
1348+/* I've hoped it's a 802.11 PHY header, but no...
1349+ * so far, I've seen on acx111:
1350+ * 0000 3a00 0000 0000 IBSS Beacons
1351+ * 0000 3c00 0000 0000 ESS Beacons
1352+ * 0000 2700 0000 0000 Probe requests
1353+ * --vda
1354+ */
1355+typedef struct phy_hdr {
1356+ u8 unknown[4];
1357+ u8 acx111_unknown[4];
1358+} ACX_PACKED phy_hdr_t;
1359+
1360+/* seems to be a bit similar to hfa384x_rx_frame.
1361+ * These fields are still not quite obvious, though.
1362+ * Some seem to have different meanings... */
1363+
1364+#define RXBUF_HDRSIZE 12
1365+#define RXBUF_BYTES_RCVD(adev, rxbuf) \
1366+ ((le16_to_cpu((rxbuf)->mac_cnt_rcvd) & 0xfff) - (adev)->phy_header_len)
1367+#define RXBUF_BYTES_USED(rxbuf) \
1368+ ((le16_to_cpu((rxbuf)->mac_cnt_rcvd) & 0xfff) + RXBUF_HDRSIZE)
1369+/* USBism */
1370+#define RXBUF_IS_TXSTAT(rxbuf) (le16_to_cpu((rxbuf)->mac_cnt_rcvd) & 0x8000)
1371+/*
1372+mac_cnt_rcvd:
1373+ 12 bits: length of frame from control field to first byte of FCS
1374+ 3 bits: reserved
1375+ 1 bit: 1 = it's a tx status info, not a rx packet (USB only)
1376+
1377+mac_cnt_mblks:
1378+ 6 bits: number of memory block used to store frame in adapter memory
1379+ 1 bit: Traffic Indicator bit in TIM of received Beacon was set
1380+
1381+mac_status: 1 byte (bitmap):
1382+ 7 Matching BSSID
1383+ 6 Matching SSID
1384+ 5 BDCST Address 1 field is a broadcast
1385+ 4 VBM received beacon frame has more than one set bit (?!)
1386+ 3 TIM Set bit representing this station is set in TIM of received beacon
1387+ 2 GROUP Address 1 is a multicast
1388+ 1 ADDR1 Address 1 matches our MAC
1389+ 0 FCSGD FSC is good
1390+
1391+phy_stat_baseband: 1 byte (bitmap):
1392+ 7 Preamble frame had a long preamble
1393+ 6 PLCP Error CRC16 error in PLCP header
1394+ 5 Unsup_Mod unsupported modulation
1395+ 4 Selected Antenna antenna 1 was used to receive this frame
1396+ 3 PBCC/CCK frame used: 1=PBCC, 0=CCK modulation
1397+ 2 OFDM frame used OFDM modulation
1398+ 1 TI Protection protection frame was detected
1399+ 0 Reserved
1400+
1401+phy_plcp_signal: 1 byte:
1402+ Receive PLCP Signal field from the Baseband Processor
1403+
1404+phy_level: 1 byte:
1405+ receive AGC gain level (can be used to measure receive signal strength)
1406+
1407+phy_snr: 1 byte:
1408+ estimated noise power of equalized receive signal
1409+ at input of FEC decoder (can be used to measure receive signal quality)
1410+
1411+time: 4 bytes:
1412+ timestamp sampled from either the Access Manager TSF counter
1413+ or free-running microsecond counter when the MAC receives
1414+ first byte of PLCP header.
1415+*/
1416+
1417+typedef struct rxbuffer {
1418+ u16 mac_cnt_rcvd; /* only 12 bits are len! (0xfff) */
1419+ u8 mac_cnt_mblks;
1420+ u8 mac_status;
1421+ u8 phy_stat_baseband; /* bit 0x80: used LNA (Low-Noise Amplifier) */
1422+ u8 phy_plcp_signal;
1423+ u8 phy_level; /* PHY stat */
1424+ u8 phy_snr; /* PHY stat */
1425+ u32 time; /* timestamp upon MAC rcv first byte */
1426+/* 4-byte (acx100) or 8-byte (acx111) phy header will be here
1427+** if RX_CFG1_INCLUDE_PHY_HDR is in effect:
1428+** phy_hdr_t phy */
1429+ wlan_hdr_a3_t hdr_a3;
1430+ /* maximally sized data part of wlan packet */
1431+ u8 data_a3[WLAN_A4FR_MAXLEN_WEP_FCS - WLAN_HDR_A3_LEN];
1432+ /* can add hdr/data_a4 if needed */
1433+} ACX_PACKED rxbuffer_t;
1434+
1435+
1436+/*--- Firmware statistics ----------------------------------------------------*/
1437+
1438+/* define a random 100 bytes more to catch firmware versions which
1439+ * provide a bigger struct */
1440+#define FW_STATS_FUTURE_EXTENSION 100
1441+
1442+typedef struct fw_stats_tx {
1443+ u32 tx_desc_of;
1444+} ACX_PACKED fw_stats_tx_t;
1445+
1446+typedef struct fw_stats_rx {
1447+ u32 rx_oom;
1448+ u32 rx_hdr_of;
1449+ u32 rx_hw_stuck; /* old: u32 rx_hdr_use_next */
1450+ u32 rx_dropped_frame;
1451+ u32 rx_frame_ptr_err;
1452+ u32 rx_xfr_hint_trig;
1453+ u32 rx_aci_events; /* later versions only */
1454+ u32 rx_aci_resets; /* later versions only */
1455+} ACX_PACKED fw_stats_rx_t;
1456+
1457+typedef struct fw_stats_dma {
1458+ u32 rx_dma_req;
1459+ u32 rx_dma_err;
1460+ u32 tx_dma_req;
1461+ u32 tx_dma_err;
1462+} ACX_PACKED fw_stats_dma_t;
1463+
1464+typedef struct fw_stats_irq {
1465+ u32 cmd_cplt;
1466+ u32 fiq;
1467+ u32 rx_hdrs;
1468+ u32 rx_cmplt;
1469+ u32 rx_mem_of;
1470+ u32 rx_rdys;
1471+ u32 irqs;
1472+ u32 tx_procs;
1473+ u32 decrypt_done;
1474+ u32 dma_0_done;
1475+ u32 dma_1_done;
1476+ u32 tx_exch_complet;
1477+ u32 commands;
1478+ u32 rx_procs;
1479+ u32 hw_pm_mode_changes;
1480+ u32 host_acks;
1481+ u32 pci_pm;
1482+ u32 acm_wakeups;
1483+} ACX_PACKED fw_stats_irq_t;
1484+
1485+typedef struct fw_stats_wep {
1486+ u32 wep_key_count;
1487+ u32 wep_default_key_count;
1488+ u32 dot11_def_key_mib;
1489+ u32 wep_key_not_found;
1490+ u32 wep_decrypt_fail;
1491+ u32 wep_pkt_decrypt;
1492+ u32 wep_decrypt_irqs;
1493+} ACX_PACKED fw_stats_wep_t;
1494+
1495+typedef struct fw_stats_pwr {
1496+ u32 tx_start_ctr;
1497+ u32 no_ps_tx_too_short;
1498+ u32 rx_start_ctr;
1499+ u32 no_ps_rx_too_short;
1500+ u32 lppd_started;
1501+ u32 no_lppd_too_noisy;
1502+ u32 no_lppd_too_short;
1503+ u32 no_lppd_matching_frame;
1504+} ACX_PACKED fw_stats_pwr_t;
1505+
1506+typedef struct fw_stats_mic {
1507+ u32 mic_rx_pkts;
1508+ u32 mic_calc_fail;
1509+} ACX_PACKED fw_stats_mic_t;
1510+
1511+typedef struct fw_stats_aes {
1512+ u32 aes_enc_fail;
1513+ u32 aes_dec_fail;
1514+ u32 aes_enc_pkts;
1515+ u32 aes_dec_pkts;
1516+ u32 aes_enc_irq;
1517+ u32 aes_dec_irq;
1518+} ACX_PACKED fw_stats_aes_t;
1519+
1520+typedef struct fw_stats_event {
1521+ u32 heartbeat;
1522+ u32 calibration;
1523+ u32 rx_mismatch;
1524+ u32 rx_mem_empty;
1525+ u32 rx_pool;
1526+ u32 oom_late;
1527+ u32 phy_tx_err;
1528+ u32 tx_stuck;
1529+} ACX_PACKED fw_stats_event_t;
1530+
1531+/* mainly for size calculation only */
1532+typedef struct fw_stats {
1533+ u16 type;
1534+ u16 len;
1535+ fw_stats_tx_t tx;
1536+ fw_stats_rx_t rx;
1537+ fw_stats_dma_t dma;
1538+ fw_stats_irq_t irq;
1539+ fw_stats_wep_t wep;
1540+ fw_stats_pwr_t pwr;
1541+ fw_stats_mic_t mic;
1542+ fw_stats_aes_t aes;
1543+ fw_stats_event_t evt;
1544+ u8 _padding[FW_STATS_FUTURE_EXTENSION];
1545+} fw_stats_t;
1546+
1547+/* Firmware version struct */
1548+
1549+typedef struct fw_ver {
1550+ u16 cmd;
1551+ u16 size;
1552+ char fw_id[20];
1553+ u32 hw_id;
1554+} ACX_PACKED fw_ver_t;
1555+
1556+#define FW_ID_SIZE 20
1557+
1558+typedef struct shared_queueindicator {
1559+ u32 indicator;
1560+ u16 host_lock;
1561+ u16 fw_lock;
1562+} ACX_PACKED queueindicator_t;
1563+
1564+/*--- WEP stuff --------------------------------------------------------------*/
1565+#define DOT11_MAX_DEFAULT_WEP_KEYS 4
1566+
1567+/* non-firmware struct, no packing necessary */
1568+typedef struct wep_key {
1569+ size_t size; /* most often used member first */
1570+ u8 index;
1571+ u8 key[29];
1572+ u16 strange_filler;
1573+} wep_key_t; /* size = 264 bytes (33*8) */
1574+/* FIXME: We don't have size 264! Or is there 2 bytes beyond the key
1575+ * (strange_filler)? */
1576+
1577+/* non-firmware struct, no packing necessary */
1578+typedef struct key_struct {
1579+ u8 addr[ETH_ALEN]; /* 0x00 */
1580+ u16 filler1; /* 0x06 */
1581+ u32 filler2; /* 0x08 */
1582+ u32 index; /* 0x0c */
1583+ u16 len; /* 0x10 */
1584+ u8 key[29]; /* 0x12; is this long enough??? */
1585+} key_struct_t; /* size = 276. FIXME: where is the remaining space?? */
1586+
1587+
1588+/*--- Client (peer) info -----------------------------------------------------*/
1589+/* adev->sta_list[] is used for:
1590+** accumulating and processing of scan results
1591+** keeping client info in AP mode
1592+** keeping AP info in STA mode (AP is the only one 'client')
1593+** keeping peer info in ad-hoc mode
1594+** non-firmware struct --> no packing necessary */
1595+enum {
1596+ CLIENT_EMPTY_SLOT_0 = 0,
1597+ CLIENT_EXIST_1 = 1,
1598+ CLIENT_AUTHENTICATED_2 = 2,
1599+ CLIENT_ASSOCIATED_3 = 3,
1600+ CLIENT_JOIN_CANDIDATE = 4
1601+};
1602+struct client {
1603+ /* most frequent access first */
1604+ u8 used; /* misnamed, more like 'status' */
1605+ struct client* next;
1606+ unsigned long mtime; /* last time we heard it, in jiffies */
1607+ size_t essid_len; /* length of ESSID (without '\0') */
1608+ u32 sir; /* Standard IR */
1609+ u32 snr; /* Signal to Noise Ratio */
1610+ u16 aid; /* association ID */
1611+ u16 seq; /* from client's auth req */
1612+ u16 auth_alg; /* from client's auth req */
1613+ u16 cap_info; /* from client's assoc req */
1614+ u16 rate_cap; /* what client supports (all rates) */
1615+ u16 rate_bas; /* what client supports (basic rates) */
1616+ u16 rate_cfg; /* what is allowed (by iwconfig etc) */
1617+ u16 rate_cur; /* currently used rate mask */
1618+ u8 rate_100; /* currently used rate byte (acx100 only) */
1619+ u8 address[ETH_ALEN];
1620+ u8 bssid[ETH_ALEN]; /* ad-hoc hosts can have bssid != mac */
1621+ u8 channel;
1622+ u8 auth_step;
1623+ u8 ignore_count;
1624+ u8 fallback_count;
1625+ u8 stepup_count;
1626+ char essid[IW_ESSID_MAX_SIZE + 1]; /* ESSID and trailing '\0' */
1627+/* FIXME: this one is too damn big */
1628+ char challenge_text[WLAN_CHALLENGE_LEN];
1629+};
1630+
1631+
1632+/***********************************************************************
1633+** Hardware structures
1634+*/
1635+
1636+/* An opaque typesafe helper type
1637+ *
1638+ * Some hardware fields are actually pointers,
1639+ * but they have to remain u32, since using ptr instead
1640+ * (8 bytes on 64bit systems!) would disrupt the fixed descriptor
1641+ * format the acx firmware expects in the non-user area.
1642+ * Since we cannot cram an 8 byte ptr into 4 bytes, we need to
1643+ * enforce that pointed to data remains in low memory
1644+ * (address value needs to fit in 4 bytes) on 64bit systems.
1645+ *
1646+ * This is easy to get wrong, thus we are using a small struct
1647+ * and special macros to access it. Macros will check for
1648+ * attempts to overflow an acx_ptr with value > 0xffffffff.
1649+ *
1650+ * Attempts to use acx_ptr without macros result in compile-time errors */
1651+
1652+typedef struct {
1653+ u32 v;
1654+} ACX_PACKED acx_ptr;
1655+
1656+#if ACX_DEBUG
1657+#define CHECK32(n) BUG_ON(sizeof(n)>4 && (long)(n)>0xffffff00)
1658+#else
1659+#define CHECK32(n) ((void)0)
1660+#endif
1661+
1662+/* acx_ptr <-> integer conversion */
1663+#define cpu2acx(n) ({ CHECK32(n); ((acx_ptr){ .v = cpu_to_le32(n) }); })
1664+#define acx2cpu(a) (le32_to_cpu(a.v))
1665+
1666+/* acx_ptr <-> pointer conversion */
1667+#define ptr2acx(p) ({ CHECK32(p); ((acx_ptr){ .v = cpu_to_le32((u32)(long)(p)) }); })
1668+#define acx2ptr(a) ((void*)le32_to_cpu(a.v))
1669+
1670+/* Values for rate field (acx100 only) */
1671+#define RATE100_1 10
1672+#define RATE100_2 20
1673+#define RATE100_5 55
1674+#define RATE100_11 110
1675+#define RATE100_22 220
1676+/* This bit denotes use of PBCC:
1677+** (PBCC encoding is usable with 11 and 22 Mbps speeds only) */
1678+#define RATE100_PBCC511 0x80
1679+
1680+/* Bit values for rate111 field */
1681+#define RATE111_1 0x0001 /* DBPSK */
1682+#define RATE111_2 0x0002 /* DQPSK */
1683+#define RATE111_5 0x0004 /* CCK or PBCC */
1684+#define RATE111_6 0x0008 /* CCK-OFDM or OFDM */
1685+#define RATE111_9 0x0010 /* CCK-OFDM or OFDM */
1686+#define RATE111_11 0x0020 /* CCK or PBCC */
1687+#define RATE111_12 0x0040 /* CCK-OFDM or OFDM */
1688+#define RATE111_18 0x0080 /* CCK-OFDM or OFDM */
1689+#define RATE111_22 0x0100 /* PBCC */
1690+#define RATE111_24 0x0200 /* CCK-OFDM or OFDM */
1691+#define RATE111_36 0x0400 /* CCK-OFDM or OFDM */
1692+#define RATE111_48 0x0800 /* CCK-OFDM or OFDM */
1693+#define RATE111_54 0x1000 /* CCK-OFDM or OFDM */
1694+#define RATE111_RESERVED 0x2000
1695+#define RATE111_PBCC511 0x4000 /* PBCC mod at 5.5 or 11Mbit (else CCK) */
1696+#define RATE111_SHORTPRE 0x8000 /* short preamble */
1697+/* Special 'try everything' value */
1698+#define RATE111_ALL 0x1fff
1699+/* These bits denote acx100 compatible settings */
1700+#define RATE111_ACX100_COMPAT 0x0127
1701+/* These bits denote 802.11b compatible settings */
1702+#define RATE111_80211B_COMPAT 0x0027
1703+
1704+/* Descriptor Ctl field bits
1705+ * init value is 0x8e, "idle" value is 0x82 (in idle tx descs)
1706+ */
1707+#define DESC_CTL_SHORT_PREAMBLE 0x01 /* preamble type: 0 = long; 1 = short */
1708+#define DESC_CTL_FIRSTFRAG 0x02 /* this is the 1st frag of the frame */
1709+#define DESC_CTL_AUTODMA 0x04
1710+#define DESC_CTL_RECLAIM 0x08 /* ready to reuse */
1711+#define DESC_CTL_HOSTDONE 0x20 /* host has finished processing */
1712+#define DESC_CTL_ACXDONE 0x40 /* acx has finished processing */
1713+/* host owns the desc [has to be released last, AFTER modifying all other desc fields!] */
1714+#define DESC_CTL_HOSTOWN 0x80
1715+#define DESC_CTL_ACXDONE_HOSTOWN (DESC_CTL_ACXDONE | DESC_CTL_HOSTOWN)
1716+
1717+/* Descriptor Status field
1718+ */
1719+#define DESC_STATUS_FULL (1 << 31)
1720+
1721+/* NB: some bits may be interesting for Monitor mode tx (aka Raw tx): */
1722+#define DESC_CTL2_SEQ 0x01 /* don't increase sequence field */
1723+#define DESC_CTL2_FCS 0x02 /* don't add the FCS */
1724+#define DESC_CTL2_MORE_FRAG 0x04
1725+#define DESC_CTL2_RETRY 0x08 /* don't increase retry field */
1726+#define DESC_CTL2_POWER 0x10 /* don't increase power mgmt. field */
1727+#define DESC_CTL2_RTS 0x20 /* do RTS/CTS magic before sending */
1728+#define DESC_CTL2_WEP 0x40 /* encrypt this frame */
1729+#define DESC_CTL2_DUR 0x80 /* don't increase duration field */
1730+
1731+/***********************************************************************
1732+** PCI structures
1733+*/
1734+/* IRQ Constants
1735+** (outside of "#ifdef PCI" because USB (mis)uses HOST_INT_SCAN_COMPLETE) */
1736+#define HOST_INT_RX_DATA 0x0001
1737+#define HOST_INT_TX_COMPLETE 0x0002
1738+#define HOST_INT_TX_XFER 0x0004
1739+#define HOST_INT_RX_COMPLETE 0x0008
1740+#define HOST_INT_DTIM 0x0010
1741+#define HOST_INT_BEACON 0x0020
1742+#define HOST_INT_TIMER 0x0040
1743+#define HOST_INT_KEY_NOT_FOUND 0x0080
1744+#define HOST_INT_IV_ICV_FAILURE 0x0100
1745+#define HOST_INT_CMD_COMPLETE 0x0200
1746+#define HOST_INT_INFO 0x0400
1747+#define HOST_INT_OVERFLOW 0x0800
1748+#define HOST_INT_PROCESS_ERROR 0x1000
1749+#define HOST_INT_SCAN_COMPLETE 0x2000
1750+#define HOST_INT_FCS_THRESHOLD 0x4000
1751+#define HOST_INT_UNKNOWN 0x8000
1752+
1753+/* Outside of "#ifdef PCI" because USB needs to know sizeof()
1754+** of txdesc and rxdesc: */
1755+struct txdesc {
1756+ acx_ptr pNextDesc; /* pointer to next txdesc */
1757+ acx_ptr HostMemPtr; /* 0x04 */
1758+ acx_ptr AcxMemPtr; /* 0x08 */
1759+ u32 tx_time; /* 0x0c */
1760+ u16 total_length; /* 0x10 */
1761+ u16 Reserved; /* 0x12 */
1762+
1763+/* The following 16 bytes do not change when acx100 owns the descriptor */
1764+/* BUG: fw clears last byte of this area which is supposedly reserved
1765+** for driver use. amd64 blew up. We dare not use it now */
1766+ u32 dummy[4];
1767+
1768+ u8 Ctl_8; /* 0x24, 8bit value */
1769+ u8 Ctl2_8; /* 0x25, 8bit value */
1770+ u8 error; /* 0x26 */
1771+ u8 ack_failures; /* 0x27 */
1772+
1773+ union {
1774+ /*
1775+ * Packing doesn't work correctly on ARM unless unions are on
1776+ * 4 byte boundaries.
1777+ */
1778+ struct {
1779+ u8 rts_failures; /* 0x28 */
1780+ u8 rts_ok; /* 0x29 */
1781+ u16 d1;
1782+ } ACX_PACKED rts;
1783+ struct {
1784+ u16 d1;
1785+ u8 rate; /* 0x2a */
1786+ u8 queue_ctrl; /* 0x2b */
1787+ } ACX_PACKED r1;
1788+ struct {
1789+ u16 d1;
1790+ u16 rate111; /* 0x2a */
1791+ } ACX_PACKED r2;
1792+ } ACX_PACKED u;
1793+ u32 queue_info; /* 0x2c (acx100, reserved on acx111) */
1794+} ACX_PACKED; /* size : 48 = 0x30 */
1795+/* NB: acx111 txdesc structure is 4 byte larger */
1796+/* All these 4 extra bytes are reserved. tx alloc code takes them into account */
1797+
1798+struct rxdesc {
1799+ acx_ptr pNextDesc; /* 0x00 */
1800+ acx_ptr HostMemPtr; /* 0x04 */
1801+ acx_ptr ACXMemPtr; /* 0x08 */
1802+ u32 rx_time; /* 0x0c */
1803+ u16 total_length; /* 0x10 */
1804+ u16 WEP_length; /* 0x12 */
1805+ u32 WEP_ofs; /* 0x14 */
1806+
1807+/* the following 16 bytes do not change when acx100 owns the descriptor */
1808+ u8 driverWorkspace[16]; /* 0x18 */
1809+
1810+ u8 Ctl_8;
1811+ u8 rate;
1812+ u8 error;
1813+ u8 SNR; /* Signal-to-Noise Ratio */
1814+ u8 RxLevel;
1815+ u8 queue_ctrl;
1816+ u16 unknown;
1817+ u32 unknown2;
1818+} ACX_PACKED; /* size 52 = 0x34 */
1819+
1820+#if defined(ACX_PCI) || defined(ACX_MEM)
1821+
1822+/* Register I/O offsets */
1823+#define ACX100_EEPROM_ID_OFFSET 0x380
1824+
1825+/* please add further ACX hardware register definitions only when
1826+ it turns out you need them in the driver, and please try to use
1827+ firmware functionality instead, since using direct I/O access instead
1828+ of letting the firmware do it might confuse the firmware's state
1829+ machine */
1830+
1831+/* ***** ABSOLUTELY ALWAYS KEEP OFFSETS IN SYNC WITH THE INITIALIZATION
1832+** OF THE I/O ARRAYS!!!! (grep for '^IO_ACX') ***** */
1833+enum {
1834+ IO_ACX_SOFT_RESET = 0,
1835+
1836+ IO_ACX_SLV_MEM_ADDR,
1837+ IO_ACX_SLV_MEM_DATA,
1838+ IO_ACX_SLV_MEM_CTL,
1839+ IO_ACX_SLV_END_CTL,
1840+
1841+ IO_ACX_FEMR, /* Function Event Mask */
1842+
1843+ IO_ACX_INT_TRIG,
1844+ IO_ACX_IRQ_MASK,
1845+ IO_ACX_IRQ_STATUS_NON_DES,
1846+ IO_ACX_IRQ_STATUS_CLEAR, /* CLEAR = clear on read */
1847+ IO_ACX_IRQ_ACK,
1848+ IO_ACX_HINT_TRIG,
1849+
1850+ IO_ACX_ENABLE,
1851+
1852+ IO_ACX_EEPROM_CTL,
1853+ IO_ACX_EEPROM_ADDR,
1854+ IO_ACX_EEPROM_DATA,
1855+ IO_ACX_EEPROM_CFG,
1856+
1857+ IO_ACX_PHY_ADDR,
1858+ IO_ACX_PHY_DATA,
1859+ IO_ACX_PHY_CTL,
1860+
1861+ IO_ACX_GPIO_OE,
1862+
1863+ IO_ACX_GPIO_OUT,
1864+
1865+ IO_ACX_CMD_MAILBOX_OFFS,
1866+ IO_ACX_INFO_MAILBOX_OFFS,
1867+ IO_ACX_EEPROM_INFORMATION,
1868+
1869+ IO_ACX_EE_START,
1870+ IO_ACX_SOR_CFG,
1871+ IO_ACX_ECPU_CTRL
1872+};
1873+/* ***** ABSOLUTELY ALWAYS KEEP OFFSETS IN SYNC WITH THE INITIALIZATION
1874+** OF THE I/O ARRAYS!!!! (grep for '^IO_ACX') ***** */
1875+
1876+/* Values for IO_ACX_INT_TRIG register: */
1877+/* inform hw that rxdesc in queue needs processing */
1878+#define INT_TRIG_RXPRC 0x08
1879+/* inform hw that txdesc in queue needs processing */
1880+#define INT_TRIG_TXPRC 0x04
1881+/* ack that we received info from info mailbox */
1882+#define INT_TRIG_INFOACK 0x02
1883+/* inform hw that we have filled command mailbox */
1884+#define INT_TRIG_CMD 0x01
1885+
1886+struct txhostdesc {
1887+ acx_ptr data_phy; /* 0x00 [u8 *] */
1888+ u16 data_offset; /* 0x04 */
1889+ u16 reserved; /* 0x06 */
1890+ u16 Ctl_16; /* 16bit value, endianness!! */
1891+ u16 length; /* 0x0a */
1892+ acx_ptr desc_phy_next; /* 0x0c [txhostdesc *] */
1893+ acx_ptr pNext; /* 0x10 [txhostdesc *] */
1894+ u32 Status; /* 0x14, unused on Tx */
1895+/* From here on you can use this area as you want (variable length, too!) */
1896+ u8 *data;
1897+} ACX_PACKED;
1898+
1899+struct rxhostdesc {
1900+ acx_ptr data_phy; /* 0x00 [rxbuffer_t *] */
1901+ u16 data_offset; /* 0x04 */
1902+ u16 reserved; /* 0x06 */
1903+ u16 Ctl_16; /* 0x08; 16bit value, endianness!! */
1904+ u16 length; /* 0x0a */
1905+ acx_ptr desc_phy_next; /* 0x0c [rxhostdesc_t *] */
1906+ acx_ptr pNext; /* 0x10 [rxhostdesc_t *] */
1907+ u32 Status; /* 0x14 */
1908+/* From here on you can use this area as you want (variable length, too!) */
1909+ rxbuffer_t *data;
1910+} ACX_PACKED;
1911+
1912+#endif /* ACX_PCI */
1913+
1914+/***********************************************************************
1915+** USB structures and constants
1916+*/
1917+#ifdef ACX_USB
1918+
1919+/* Used for usb_txbuffer.desc field */
1920+#define USB_TXBUF_TXDESC 0xA
1921+/* Size of header (everything up to data[]) */
1922+#define USB_TXBUF_HDRSIZE 14
1923+typedef struct usb_txbuffer {
1924+ u16 desc;
1925+ u16 mpdu_len;
1926+ u8 queue_index;
1927+ u8 rate;
1928+ u32 hostdata;
1929+ u8 ctrl1;
1930+ u8 ctrl2;
1931+ u16 data_len;
1932+ /* wlan packet content is placed here: */
1933+ u8 data[WLAN_A4FR_MAXLEN_WEP_FCS];
1934+} ACX_PACKED usb_txbuffer_t;
1935+
1936+/* USB returns either rx packets (see rxbuffer) or
1937+** these "tx status" structs: */
1938+typedef struct usb_txstatus {
1939+ u16 mac_cnt_rcvd; /* only 12 bits are len! (0xfff) */
1940+ u8 queue_index;
1941+ u8 mac_status; /* seen 0x20 on tx failure */
1942+ u32 hostdata;
1943+ u8 rate;
1944+ u8 ack_failures;
1945+ u8 rts_failures;
1946+ u8 rts_ok;
1947+} ACX_PACKED usb_txstatus_t;
1948+
1949+typedef struct usb_tx {
1950+ unsigned busy:1;
1951+ struct urb *urb;
1952+ acx_device_t *adev;
1953+ /* actual USB bulk output data block is here: */
1954+ usb_txbuffer_t bulkout;
1955+} usb_tx_t;
1956+
1957+struct usb_rx_plain {
1958+ unsigned busy:1;
1959+ struct urb *urb;
1960+ acx_device_t *adev;
1961+ rxbuffer_t bulkin;
1962+};
1963+
1964+typedef struct usb_rx {
1965+ unsigned busy:1;
1966+ struct urb *urb;
1967+ acx_device_t *adev;
1968+ rxbuffer_t bulkin;
1969+ /* Make entire structure 4k. Report if it breaks something. */
1970+ u8 padding[4*1024 - sizeof(struct usb_rx_plain)];
1971+} usb_rx_t;
1972+#endif /* ACX_USB */
1973+
1974+
1975+/* Config Option structs */
1976+
1977+typedef struct co_antennas {
1978+ u8 type;
1979+ u8 len;
1980+ u8 list[2];
1981+} ACX_PACKED co_antennas_t;
1982+
1983+typedef struct co_powerlevels {
1984+ u8 type;
1985+ u8 len;
1986+ u16 list[8];
1987+} ACX_PACKED co_powerlevels_t;
1988+
1989+typedef struct co_datarates {
1990+ u8 type;
1991+ u8 len;
1992+ u8 list[8];
1993+} ACX_PACKED co_datarates_t;
1994+
1995+typedef struct co_domains {
1996+ u8 type;
1997+ u8 len;
1998+ u8 list[6];
1999+} ACX_PACKED co_domains_t;
2000+
2001+typedef struct co_product_id {
2002+ u8 type;
2003+ u8 len;
2004+ u8 list[128];
2005+} ACX_PACKED co_product_id_t;
2006+
2007+typedef struct co_manuf_id {
2008+ u8 type;
2009+ u8 len;
2010+ u8 list[128];
2011+} ACX_PACKED co_manuf_t;
2012+
2013+typedef struct co_fixed {
2014+ char NVSv[8];
2015+/* u16 NVS_vendor_offs; ACX111-only */
2016+/* u16 unknown; ACX111-only */
2017+ u8 MAC[6]; /* ACX100-only */
2018+ u16 probe_delay; /* ACX100-only */
2019+ u32 eof_memory;
2020+ u8 dot11CCAModes;
2021+ u8 dot11Diversity;
2022+ u8 dot11ShortPreambleOption;
2023+ u8 dot11PBCCOption;
2024+ u8 dot11ChannelAgility;
2025+ u8 dot11PhyType; /* FIXME: does 802.11 call it "dot11PHYType"? */
2026+ u8 dot11TempType;
2027+ u8 table_count;
2028+} ACX_PACKED co_fixed_t;
2029+
2030+typedef struct acx111_ie_configoption {
2031+ u16 type;
2032+ u16 len;
2033+/* Do not access below members directly, they are in fact variable length */
2034+ co_fixed_t fixed;
2035+ co_antennas_t antennas;
2036+ co_powerlevels_t power_levels;
2037+ co_datarates_t data_rates;
2038+ co_domains_t domains;
2039+ co_product_id_t product_id;
2040+ co_manuf_t manufacturer;
2041+ u8 _padding[4];
2042+} ACX_PACKED acx111_ie_configoption_t;
2043+
2044+
2045+/***********************************************************************
2046+** Main acx per-device data structure
2047+*/
2048+#define ACX_STATE_FW_LOADED 0x01
2049+#define ACX_STATE_IFACE_UP 0x02
2050+
2051+/* MAC mode (BSS type) defines
2052+ * Note that they shouldn't be redefined, since they are also used
2053+ * during communication with firmware */
2054+#define ACX_MODE_0_ADHOC 0
2055+#define ACX_MODE_1_UNUSED 1
2056+#define ACX_MODE_2_STA 2
2057+#define ACX_MODE_3_AP 3
2058+/* These are our own inventions. Sending these to firmware
2059+** makes it stop emitting beacons, which is exactly what we want
2060+** for these modes */
2061+#define ACX_MODE_MONITOR 0xfe
2062+#define ACX_MODE_OFF 0xff
2063+/* 'Submode': identifies exact status of ADHOC/STA host */
2064+#define ACX_STATUS_0_STOPPED 0
2065+#define ACX_STATUS_1_SCANNING 1
2066+#define ACX_STATUS_2_WAIT_AUTH 2
2067+#define ACX_STATUS_3_AUTHENTICATED 3
2068+#define ACX_STATUS_4_ASSOCIATED 4
2069+
2070+/* FIXME: this should be named something like struct acx_priv (typedef'd to
2071+ * acx_priv_t) */
2072+
2073+/* non-firmware struct, no packing necessary */
2074+struct acx_device {
2075+ /* most frequent accesses first (dereferencing and cache line!) */
2076+
2077+ /*** Locking ***/
2078+ /* FIXME: try to convert semaphore to more efficient mutex according
2079+ to Ingo Molnar's docs (but not before driver is in mainline or
2080+ pre-mutex Linux 2.6.10 is very outdated). */
2081+ struct semaphore sem;
2082+ spinlock_t lock;
2083+#if defined(PARANOID_LOCKING) /* Lock debugging */
2084+ const char *last_sem;
2085+ const char *last_lock;
2086+ unsigned long sem_time;
2087+ unsigned long lock_time;
2088+#endif
2089+#ifdef ACX_MEM
2090+ spinlock_t txbuf_lock;
2091+#endif
2092+
2093+ /*** Linux network device ***/
2094+ struct net_device *ndev; /* pointer to linux netdevice */
2095+
2096+ /*** Device statistics ***/
2097+ struct net_device_stats stats; /* net device statistics */
2098+#ifdef WIRELESS_EXT
2099+ struct iw_statistics wstats; /* wireless statistics */
2100+#endif
2101+ /*** Power managment ***/
2102+ struct pm_dev *pm; /* PM crap */
2103+
2104+ /*** Management timer ***/
2105+ struct timer_list mgmt_timer;
2106+
2107+ /*** Hardware identification ***/
2108+ const char *chip_name;
2109+ u8 dev_type;
2110+ u8 chip_type;
2111+ u8 form_factor;
2112+ u8 radio_type;
2113+ u8 eeprom_version;
2114+
2115+ /*** Config retrieved from EEPROM ***/
2116+ char cfgopt_NVSv[8];
2117+ u16 cfgopt_NVS_vendor_offs;
2118+ u8 cfgopt_MAC[6];
2119+ u16 cfgopt_probe_delay;
2120+ u32 cfgopt_eof_memory;
2121+ u8 cfgopt_dot11CCAModes;
2122+ u8 cfgopt_dot11Diversity;
2123+ u8 cfgopt_dot11ShortPreambleOption;
2124+ u8 cfgopt_dot11PBCCOption;
2125+ u8 cfgopt_dot11ChannelAgility;
2126+ u8 cfgopt_dot11PhyType;
2127+ u8 cfgopt_dot11TempType;
2128+ co_antennas_t cfgopt_antennas;
2129+ co_powerlevels_t cfgopt_power_levels;
2130+ co_datarates_t cfgopt_data_rates;
2131+ co_domains_t cfgopt_domains;
2132+ co_product_id_t cfgopt_product_id;
2133+ co_manuf_t cfgopt_manufacturer;
2134+
2135+ /*** Firmware identification ***/
2136+ char firmware_version[FW_ID_SIZE+1];
2137+ u32 firmware_numver;
2138+ u32 firmware_id;
2139+ const u16 *ie_len;
2140+ const u16 *ie_len_dot11;
2141+
2142+ /*** Device state ***/
2143+ u16 dev_state_mask;
2144+ u8 led_power; /* power LED status */
2145+ u32 get_mask; /* mask of settings to fetch from the card */
2146+ u32 set_mask; /* mask of settings to write to the card */
2147+
2148+ /* Barely used in USB case */
2149+ u16 irq_status;
2150+
2151+ u8 after_interrupt_jobs; /* mini job list for doing actions after an interrupt occurred */
2152+ WORK_STRUCT after_interrupt_task; /* our task for after interrupt actions */
2153+
2154+ /*** scanning ***/
2155+ u16 scan_count; /* number of times to do channel scan */
2156+ u8 scan_mode; /* 0 == active, 1 == passive, 2 == background */
2157+ u8 scan_rate;
2158+ u16 scan_duration;
2159+ u16 scan_probe_delay;
2160+#if WIRELESS_EXT > 15
2161+ struct iw_spy_data spy_data; /* FIXME: needs to be implemented! */
2162+#endif
2163+
2164+ /*** Wireless network settings ***/
2165+ /* copy of the device address (ifconfig hw ether) that we actually use
2166+ ** for 802.11; copied over from the network device's MAC address
2167+ ** (ifconfig) when it makes sense only */
2168+ u8 dev_addr[MAX_ADDR_LEN];
2169+ u8 bssid[ETH_ALEN]; /* the BSSID after having joined */
2170+ u8 ap[ETH_ALEN]; /* The AP we want, FF:FF:FF:FF:FF:FF is any */
2171+ u16 aid; /* The Association ID sent from the AP / last used AID if we're an AP */
2172+ u16 mode; /* mode from iwconfig */
2173+ int monitor_type; /* ARPHRD_IEEE80211 or ARPHRD_IEEE80211_PRISM */
2174+ u16 status; /* 802.11 association status */
2175+ u8 essid_active; /* specific ESSID active, or select any? */
2176+ u8 essid_len; /* to avoid dozens of strlen() */
2177+ /* INCLUDES \0 termination for easy printf - but many places
2178+ ** simply want the string data memcpy'd plus a length indicator!
2179+ ** Keep that in mind... */
2180+ char essid[IW_ESSID_MAX_SIZE+1];
2181+ /* essid we are going to use for association, in case of "essid 'any'"
2182+ ** and in case of hidden ESSID (use configured ESSID then) */
2183+ char essid_for_assoc[IW_ESSID_MAX_SIZE+1];
2184+ char nick[IW_ESSID_MAX_SIZE+1]; /* see essid! */
2185+ u8 channel;
2186+ u8 reg_dom_id; /* reg domain setting */
2187+ u16 reg_dom_chanmask;
2188+ u16 auth_or_assoc_retries;
2189+ u16 scan_retries;
2190+ unsigned long scan_start; /* YES, jiffies is defined as "unsigned long" */
2191+
2192+ /* stations known to us (if we're an ap) */
2193+ client_t sta_list[32]; /* tab is larger than list, so that */
2194+ client_t *sta_hash_tab[64]; /* hash collisions are not likely */
2195+ client_t *ap_client; /* this one is our AP (STA mode only) */
2196+
2197+ int dup_count;
2198+ int nondup_count;
2199+ unsigned long dup_msg_expiry;
2200+ u16 last_seq_ctrl; /* duplicate packet detection */
2201+
2202+ /* 802.11 power save mode */
2203+ u8 ps_wakeup_cfg;
2204+ u8 ps_listen_interval;
2205+ u8 ps_options;
2206+ u8 ps_hangover_period;
2207+ u32 ps_enhanced_transition_time;
2208+ u32 ps_beacon_rx_time;
2209+
2210+ /*** PHY settings ***/
2211+ u8 fallback_threshold;
2212+ u8 stepup_threshold;
2213+ u16 rate_basic;
2214+ u16 rate_oper;
2215+ u16 rate_bcast;
2216+ u16 rate_bcast100;
2217+ u8 rate_auto; /* false if "iwconfig rate N" (WITHOUT 'auto'!) */
2218+ u8 preamble_mode; /* 0 == Long Preamble, 1 == Short, 2 == Auto */
2219+ u8 preamble_cur;
2220+
2221+ u8 tx_disabled;
2222+ u8 tx_level_dbm;
2223+ /* u8 tx_level_val; */
2224+ /* u8 tx_level_auto; whether to do automatic power adjustment */
2225+
2226+ unsigned long recalib_time_last_success;
2227+ unsigned long recalib_time_last_attempt;
2228+ int recalib_failure_count;
2229+ int recalib_msg_ratelimit;
2230+ int retry_errors_msg_ratelimit;
2231+
2232+ unsigned long brange_time_last_state_change; /* time the power LED was last changed */
2233+ u8 brange_last_state; /* last state of the LED */
2234+ u8 brange_max_quality; /* maximum quality that equates to full speed */
2235+
2236+ u8 sensitivity;
2237+ u8 antenna; /* antenna settings */
2238+ u8 ed_threshold; /* energy detect threshold */
2239+ u8 cca; /* clear channel assessment */
2240+
2241+ u16 rts_threshold;
2242+ u16 frag_threshold;
2243+ u32 short_retry;
2244+ u32 long_retry;
2245+ u16 msdu_lifetime;
2246+ u16 listen_interval; /* given in units of beacon interval */
2247+ u32 beacon_interval;
2248+
2249+ u16 capabilities;
2250+ u8 rate_supported_len;
2251+ u8 rate_supported[13];
2252+
2253+ /*** Encryption settings (WEP) ***/
2254+ u32 auth_alg; /* used in transmit_authen1 */
2255+ u8 wep_enabled;
2256+ u8 wep_restricted;
2257+ u8 wep_current_index;
2258+ wep_key_t wep_keys[DOT11_MAX_DEFAULT_WEP_KEYS]; /* the default WEP keys */
2259+ key_struct_t wep_key_struct[10];
2260+
2261+ /*** Unknown ***/
2262+ u8 dtim_interval;
2263+
2264+#ifdef ACX_MEM
2265+ u32 acx_txbuf_start;
2266+ int acx_txbuf_numblocks;
2267+ u32 acx_txbuf_free; /* addr of head of free list */
2268+ int acx_txbuf_blocks_free; /* how many are still open */
2269+ queueindicator_t *acx_queue_indicator;
2270+#endif
2271+
2272+ /*** Card Rx/Tx management ***/
2273+ u16 rx_config_1;
2274+ u16 rx_config_2;
2275+ u16 memblocksize;
2276+ unsigned int tx_free;
2277+ unsigned int tx_head; /* keep as close as possible to Tx stuff below (cache line) */
2278+ u16 phy_header_len;
2279+
2280+/*************************************************************************
2281+ *** PCI/USB/... must be last or else hw agnostic code breaks horribly ***
2282+ *************************************************************************/
2283+
2284+ /* hack to let common code compile. FIXME */
2285+ dma_addr_t rxhostdesc_startphy;
2286+
2287+ /*** PCI stuff ***/
2288+#if defined(ACX_PCI) || defined(ACX_MEM)
2289+ /* pointers to tx buffers, tx host descriptors (in host memory)
2290+ ** and tx descs in device memory */
2291+ unsigned int tx_tail;
2292+ u8 *txbuf_start;
2293+ txhostdesc_t *txhostdesc_start;
2294+ txdesc_t *txdesc_start; /* points to PCI-mapped memory */
2295+ dma_addr_t txbuf_startphy;
2296+ dma_addr_t txhostdesc_startphy;
2297+ /* sizes of above host memory areas */
2298+ unsigned int txbuf_area_size;
2299+ unsigned int txhostdesc_area_size;
2300+
2301+ unsigned int txdesc_size; /* size of txdesc; ACX111 = ACX100 + 4 */
2302+ client_t *txc[TX_CNT];
2303+ u16 txr[TX_CNT];
2304+
2305+ /* same for rx */
2306+ unsigned int rx_tail;
2307+ rxbuffer_t *rxbuf_start;
2308+ rxhostdesc_t *rxhostdesc_start;
2309+ rxdesc_t *rxdesc_start;
2310+ /* physical addresses of above host memory areas */
2311+ dma_addr_t rxbuf_startphy;
2312+ /* dma_addr_t rxhostdesc_startphy; */
2313+ unsigned int rxbuf_area_size;
2314+ unsigned int rxhostdesc_area_size;
2315+
2316+ u8 need_radio_fw;
2317+ u8 irqs_active; /* whether irq sending is activated */
2318+
2319+ const u16 *io; /* points to ACX100 or ACX111 PCI I/O register address set */
2320+
2321+#ifdef ACX_PCI
2322+ struct pci_dev *pdev;
2323+#endif
2324+#ifdef ACX_MEM
2325+ struct device *dev;
2326+#endif
2327+
2328+#ifdef ACX_PCI
2329+ unsigned long membase;
2330+#endif
2331+#ifdef ACX_MEM
2332+ volatile u32 *membase;
2333+#endif
2334+ unsigned long membase2;
2335+#ifdef ACX_PCI
2336+ void __iomem *iobase;
2337+#endif
2338+#ifdef ACX_MEM
2339+ volatile u32 *iobase;
2340+#endif
2341+ void __iomem *iobase2;
2342+ /* command interface */
2343+ u8 __iomem *cmd_area;
2344+ u8 __iomem *info_area;
2345+
2346+ u16 irq_mask; /* interrupt types to mask out (not wanted) with many IRQs activated */
2347+ u16 irq_mask_off; /* interrupt types to mask out (not wanted) with IRQs off */
2348+ unsigned int irq_loops_this_jiffy;
2349+ unsigned long irq_last_jiffies;
2350+#endif
2351+
2352+ /*** USB stuff ***/
2353+#ifdef ACX_USB
2354+ struct usb_device *usbdev;
2355+
2356+ rxbuffer_t rxtruncbuf;
2357+
2358+ usb_tx_t *usb_tx;
2359+ usb_rx_t *usb_rx;
2360+
2361+ int bulkinep; /* bulk-in endpoint */
2362+ int bulkoutep; /* bulk-out endpoint */
2363+ int rxtruncsize;
2364+#endif
2365+
2366+};
2367+
2368+static inline acx_device_t*
2369+ndev2adev(struct net_device *ndev)
2370+{
2371+ return netdev_priv(ndev);
2372+}
2373+
2374+
2375+/* For use with ACX1xx_IE_RXCONFIG */
2376+/* bit description
2377+ * 13 include additional header (length etc.) *required*
2378+ * struct is defined in 'struct rxbuffer'
2379+ * is this bit acx100 only? does acx111 always put the header,
2380+ * and bit setting is irrelevant? --vda
2381+ * 10 receive frames only with SSID used in last join cmd
2382+ * 9 discard broadcast
2383+ * 8 receive packets for multicast address 1
2384+ * 7 receive packets for multicast address 0
2385+ * 6 discard all multicast packets
2386+ * 5 discard frames from foreign BSSID
2387+ * 4 discard frames with foreign destination MAC address
2388+ * 3 promiscuous mode (receive ALL frames, disable filter)
2389+ * 2 include FCS
2390+ * 1 include phy header
2391+ * 0 ???
2392+ */
2393+#define RX_CFG1_INCLUDE_RXBUF_HDR 0x2000 /* ACX100 only */
2394+#define RX_CFG1_FILTER_SSID 0x0400
2395+#define RX_CFG1_FILTER_BCAST 0x0200
2396+#define RX_CFG1_RCV_MC_ADDR1 0x0100
2397+#define RX_CFG1_RCV_MC_ADDR0 0x0080
2398+#define RX_CFG1_FILTER_ALL_MULTI 0x0040
2399+#define RX_CFG1_FILTER_BSSID 0x0020
2400+#define RX_CFG1_FILTER_MAC 0x0010
2401+#define RX_CFG1_RCV_PROMISCUOUS 0x0008
2402+#define RX_CFG1_INCLUDE_FCS 0x0004
2403+#define RX_CFG1_INCLUDE_PHY_HDR (WANT_PHY_HDR ? 0x0002 : 0)
2404+/* bit description
2405+ * 11 receive association requests etc.
2406+ * 10 receive authentication frames
2407+ * 9 receive beacon frames
2408+ * 8 receive contention free packets
2409+ * 7 receive control frames
2410+ * 6 receive data frames
2411+ * 5 receive broken frames
2412+ * 4 receive management frames
2413+ * 3 receive probe requests
2414+ * 2 receive probe responses
2415+ * 1 receive RTS/CTS/ACK frames
2416+ * 0 receive other
2417+ */
2418+#define RX_CFG2_RCV_ASSOC_REQ 0x0800
2419+#define RX_CFG2_RCV_AUTH_FRAMES 0x0400
2420+#define RX_CFG2_RCV_BEACON_FRAMES 0x0200
2421+#define RX_CFG2_RCV_CONTENTION_FREE 0x0100
2422+#define RX_CFG2_RCV_CTRL_FRAMES 0x0080
2423+#define RX_CFG2_RCV_DATA_FRAMES 0x0040
2424+#define RX_CFG2_RCV_BROKEN_FRAMES 0x0020
2425+#define RX_CFG2_RCV_MGMT_FRAMES 0x0010
2426+#define RX_CFG2_RCV_PROBE_REQ 0x0008
2427+#define RX_CFG2_RCV_PROBE_RESP 0x0004
2428+#define RX_CFG2_RCV_ACK_FRAMES 0x0002
2429+#define RX_CFG2_RCV_OTHER 0x0001
2430+
2431+/* For use with ACX1xx_IE_FEATURE_CONFIG */
2432+#define FEATURE1_80MHZ_CLOCK 0x00000040L
2433+#define FEATURE1_4X 0x00000020L
2434+#define FEATURE1_LOW_RX 0x00000008L
2435+#define FEATURE1_EXTRA_LOW_RX 0x00000001L
2436+
2437+#define FEATURE2_SNIFFER 0x00000080L
2438+#define FEATURE2_NO_TXCRYPT 0x00000001L
2439+
2440+/*-- get and set mask values --*/
2441+#define GETSET_LED_POWER 0x00000001L
2442+#define GETSET_STATION_ID 0x00000002L
2443+#define SET_TEMPLATES 0x00000004L
2444+#define SET_STA_LIST 0x00000008L
2445+#define GETSET_TX 0x00000010L
2446+#define GETSET_RX 0x00000020L
2447+#define SET_RXCONFIG 0x00000040L
2448+#define GETSET_ANTENNA 0x00000080L
2449+#define GETSET_SENSITIVITY 0x00000100L
2450+#define GETSET_TXPOWER 0x00000200L
2451+#define GETSET_ED_THRESH 0x00000400L
2452+#define GETSET_CCA 0x00000800L
2453+#define GETSET_POWER_80211 0x00001000L
2454+#define GETSET_RETRY 0x00002000L
2455+#define GETSET_REG_DOMAIN 0x00004000L
2456+#define GETSET_CHANNEL 0x00008000L
2457+/* Used when ESSID changes etc and we need to scan for AP anew */
2458+#define GETSET_RESCAN 0x00010000L
2459+#define GETSET_MODE 0x00020000L
2460+#define GETSET_WEP 0x00040000L
2461+#define SET_WEP_OPTIONS 0x00080000L
2462+#define SET_MSDU_LIFETIME 0x00100000L
2463+#define SET_RATE_FALLBACK 0x00200000L
2464+
2465+/* keep in sync with the above */
2466+#define GETSET_ALL (0 \
2467+/* GETSET_LED_POWER */ | 0x00000001L \
2468+/* GETSET_STATION_ID */ | 0x00000002L \
2469+/* SET_TEMPLATES */ | 0x00000004L \
2470+/* SET_STA_LIST */ | 0x00000008L \
2471+/* GETSET_TX */ | 0x00000010L \
2472+/* GETSET_RX */ | 0x00000020L \
2473+/* SET_RXCONFIG */ | 0x00000040L \
2474+/* GETSET_ANTENNA */ | 0x00000080L \
2475+/* GETSET_SENSITIVITY */| 0x00000100L \
2476+/* GETSET_TXPOWER */ | 0x00000200L \
2477+/* GETSET_ED_THRESH */ | 0x00000400L \
2478+/* GETSET_CCA */ | 0x00000800L \
2479+/* GETSET_POWER_80211 */| 0x00001000L \
2480+/* GETSET_RETRY */ | 0x00002000L \
2481+/* GETSET_REG_DOMAIN */ | 0x00004000L \
2482+/* GETSET_CHANNEL */ | 0x00008000L \
2483+/* GETSET_RESCAN */ | 0x00010000L \
2484+/* GETSET_MODE */ | 0x00020000L \
2485+/* GETSET_WEP */ | 0x00040000L \
2486+/* SET_WEP_OPTIONS */ | 0x00080000L \
2487+/* SET_MSDU_LIFETIME */ | 0x00100000L \
2488+/* SET_RATE_FALLBACK */ | 0x00200000L \
2489+ )
2490+
2491+
2492+/***********************************************************************
2493+** Firmware loading
2494+*/
2495+#include <linux/firmware.h> /* request_firmware() */
2496+#include <linux/pci.h> /* struct pci_device */
2497+
2498+
2499+/***********************************************************************
2500+*/
2501+typedef struct acx100_ie_memblocksize {
2502+ u16 type;
2503+ u16 len;
2504+ u16 size;
2505+} ACX_PACKED acx100_ie_memblocksize_t;
2506+
2507+typedef struct acx100_ie_queueconfig {
2508+ u16 type;
2509+ u16 len;
2510+ u32 AreaSize;
2511+ u32 RxQueueStart;
2512+ u8 QueueOptions;
2513+ u8 NumTxQueues;
2514+ u8 NumRxDesc; /* for USB only */
2515+ u8 pad1;
2516+ u32 QueueEnd;
2517+ u32 HostQueueEnd; /* QueueEnd2 */
2518+ u32 TxQueueStart;
2519+ u8 TxQueuePri;
2520+ u8 NumTxDesc;
2521+ u16 pad2;
2522+} ACX_PACKED acx100_ie_queueconfig_t;
2523+
2524+typedef struct acx111_ie_queueconfig {
2525+ u16 type;
2526+ u16 len;
2527+ u32 tx_memory_block_address;
2528+ u32 rx_memory_block_address;
2529+ u32 rx1_queue_address;
2530+ u32 reserved1;
2531+ u32 tx1_queue_address;
2532+ u8 tx1_attributes;
2533+ u16 reserved2;
2534+ u8 reserved3;
2535+} ACX_PACKED acx111_ie_queueconfig_t;
2536+
2537+typedef struct acx100_ie_memconfigoption {
2538+ u16 type;
2539+ u16 len;
2540+ u32 DMA_config;
2541+ acx_ptr pRxHostDesc;
2542+ u32 rx_mem;
2543+ u32 tx_mem;
2544+ u16 RxBlockNum;
2545+ u16 TxBlockNum;
2546+} ACX_PACKED acx100_ie_memconfigoption_t;
2547+
2548+typedef struct acx111_ie_memoryconfig {
2549+ u16 type;
2550+ u16 len;
2551+ u16 no_of_stations;
2552+ u16 memory_block_size;
2553+ u8 tx_rx_memory_block_allocation;
2554+ u8 count_rx_queues;
2555+ u8 count_tx_queues;
2556+ u8 options;
2557+ u8 fragmentation;
2558+ u16 reserved1;
2559+ u8 reserved2;
2560+
2561+ /* start of rx1 block */
2562+ u8 rx_queue1_count_descs;
2563+ u8 rx_queue1_reserved1;
2564+ u8 rx_queue1_type; /* must be set to 7 */
2565+ u8 rx_queue1_prio; /* must be set to 0 */
2566+ acx_ptr rx_queue1_host_rx_start;
2567+ /* end of rx1 block */
2568+
2569+ /* start of tx1 block */
2570+ u8 tx_queue1_count_descs;
2571+ u8 tx_queue1_reserved1;
2572+ u8 tx_queue1_reserved2;
2573+ u8 tx_queue1_attributes;
2574+ /* end of tx1 block */
2575+} ACX_PACKED acx111_ie_memoryconfig_t;
2576+
2577+typedef struct acx_ie_memmap {
2578+ u16 type;
2579+ u16 len;
2580+ u32 CodeStart;
2581+ u32 CodeEnd;
2582+ u32 WEPCacheStart;
2583+ u32 WEPCacheEnd;
2584+ u32 PacketTemplateStart;
2585+ u32 PacketTemplateEnd;
2586+ u32 QueueStart;
2587+ u32 QueueEnd;
2588+ u32 PoolStart;
2589+ u32 PoolEnd;
2590+} ACX_PACKED acx_ie_memmap_t;
2591+
2592+typedef struct acx111_ie_feature_config {
2593+ u16 type;
2594+ u16 len;
2595+ u32 feature_options;
2596+ u32 data_flow_options;
2597+} ACX_PACKED acx111_ie_feature_config_t;
2598+
2599+typedef struct acx111_ie_tx_level {
2600+ u16 type;
2601+ u16 len;
2602+ u8 level;
2603+} ACX_PACKED acx111_ie_tx_level_t;
2604+
2605+#define PS_CFG_ENABLE 0x80
2606+#define PS_CFG_PENDING 0x40 /* status flag when entering PS */
2607+#define PS_CFG_WAKEUP_MODE_MASK 0x07
2608+#define PS_CFG_WAKEUP_BY_HOST 0x03
2609+#define PS_CFG_WAKEUP_EACH_ITVL 0x02
2610+#define PS_CFG_WAKEUP_ON_DTIM 0x01
2611+#define PS_CFG_WAKEUP_ALL_BEAC 0x00
2612+
2613+/* Enhanced PS mode: sleep until Rx Beacon w/ the STA's AID bit set
2614+** in the TIM; newer firmwares only(?) */
2615+#define PS_OPT_ENA_ENHANCED_PS 0x04
2616+#define PS_OPT_TX_PSPOLL 0x02 /* send PSPoll frame to fetch waiting frames from AP (on frame with matching AID) */
2617+#define PS_OPT_STILL_RCV_BCASTS 0x01
2618+
2619+typedef struct acx100_ie_powersave {
2620+ u16 type;
2621+ u16 len;
2622+ u8 wakeup_cfg;
2623+ u8 listen_interval; /* for EACH_ITVL: wake up every "beacon units" interval */
2624+ u8 options;
2625+ u8 hangover_period; /* remaining wake time after Tx MPDU w/ PS bit, in values of 1/1024 seconds */
2626+ u16 enhanced_ps_transition_time; /* rem. wake time for Enh. PS */
2627+} ACX_PACKED acx100_ie_powersave_t;
2628+
2629+typedef struct acx111_ie_powersave {
2630+ u16 type;
2631+ u16 len;
2632+ u8 wakeup_cfg;
2633+ u8 listen_interval; /* for EACH_ITVL: wake up every "beacon units" interval */
2634+ u8 options;
2635+ u8 hangover_period; /* remaining wake time after Tx MPDU w/ PS bit, in values of 1/1024 seconds */
2636+ u32 beacon_rx_time;
2637+ u32 enhanced_ps_transition_time; /* rem. wake time for Enh. PS */
2638+} ACX_PACKED acx111_ie_powersave_t;
2639+
2640+
2641+/***********************************************************************
2642+** Commands and template structures
2643+*/
2644+
2645+/*
2646+** SCAN command structure
2647+**
2648+** even though acx100 scan rates match RATE100 constants,
2649+** acx111 ones do not match! Therefore we do not use RATE100 #defines */
2650+#define ACX_SCAN_RATE_1 10
2651+#define ACX_SCAN_RATE_2 20
2652+#define ACX_SCAN_RATE_5 55
2653+#define ACX_SCAN_RATE_11 110
2654+#define ACX_SCAN_RATE_22 220
2655+#define ACX_SCAN_RATE_PBCC 0x80 /* OR with this if needed */
2656+#define ACX_SCAN_OPT_ACTIVE 0x00 /* a bit mask */
2657+#define ACX_SCAN_OPT_PASSIVE 0x01
2658+/* Background scan: we go into Power Save mode (by transmitting
2659+** NULL data frame to AP with the power mgmt bit set), do the scan,
2660+** and then exit Power Save mode. A plus is that AP buffers frames
2661+** for us while we do background scan. Thus we avoid frame losses.
2662+** Background scan can be active or passive, just like normal one */
2663+#define ACX_SCAN_OPT_BACKGROUND 0x02
2664+typedef struct acx100_scan {
2665+ u16 count; /* number of scans to do, 0xffff == continuous */
2666+ u16 start_chan;
2667+ u16 flags; /* channel list mask; 0x8000 == all channels? */
2668+ u8 max_rate; /* max. probe rate */
2669+ u8 options; /* bit mask, see defines above */
2670+ u16 chan_duration;
2671+ u16 max_probe_delay;
2672+} ACX_PACKED acx100_scan_t; /* length 0xc */
2673+
2674+#define ACX111_SCAN_RATE_6 0x0B
2675+#define ACX111_SCAN_RATE_9 0x0F
2676+#define ACX111_SCAN_RATE_12 0x0A
2677+#define ACX111_SCAN_RATE_18 0x0E
2678+#define ACX111_SCAN_RATE_24 0x09
2679+#define ACX111_SCAN_RATE_36 0x0D
2680+#define ACX111_SCAN_RATE_48 0x08
2681+#define ACX111_SCAN_RATE_54 0x0C
2682+#define ACX111_SCAN_OPT_5GHZ 0x04 /* else 2.4GHZ */
2683+#define ACX111_SCAN_MOD_SHORTPRE 0x01 /* you can combine SHORTPRE and PBCC */
2684+#define ACX111_SCAN_MOD_PBCC 0x80
2685+#define ACX111_SCAN_MOD_OFDM 0x40
2686+typedef struct acx111_scan {
2687+ u16 count; /* number of scans to do */
2688+ u8 channel_list_select; /* 0: scan all channels, 1: from chan_list only */
2689+ u16 reserved1;
2690+ u8 reserved2;
2691+ u8 rate; /* rate for probe requests (if active scan) */
2692+ u8 options; /* bit mask, see defines above */
2693+ u16 chan_duration; /* min time to wait for reply on one channel (in TU) */
2694+ /* (active scan only) (802.11 section 11.1.3.2.2) */
2695+ u16 max_probe_delay; /* max time to wait for reply on one channel (active scan) */
2696+ /* time to listen on a channel (passive scan) */
2697+ u8 modulation;
2698+ u8 channel_list[26]; /* bits 7:0 first byte: channels 8:1 */
2699+ /* bits 7:0 second byte: channels 16:9 */
2700+ /* 26 bytes is enough to cover 802.11a */
2701+} ACX_PACKED acx111_scan_t;
2702+
2703+
2704+/*
2705+** Radio calibration command structure
2706+*/
2707+typedef struct acx111_cmd_radiocalib {
2708+/* 0x80000000 == automatic calibration by firmware, according to interval;
2709+ * bits 0..3: select calibration methods to go through:
2710+ * calib based on DC, AfeDC, Tx mismatch, Tx equilization */
2711+ u32 methods;
2712+ u32 interval;
2713+} ACX_PACKED acx111_cmd_radiocalib_t;
2714+
2715+
2716+/*
2717+** Packet template structures
2718+**
2719+** Packet templates store contents of Beacon, Probe response, Probe request,
2720+** Null data frame, and TIM data frame. Firmware automatically transmits
2721+** contents of template at appropriate time:
2722+** - Beacon: when configured as AP or Ad-hoc
2723+** - Probe response: when configured as AP or Ad-hoc, whenever
2724+** a Probe request frame is received
2725+** - Probe request: when host issues SCAN command (active)
2726+** - Null data frame: when entering 802.11 power save mode
2727+** - TIM data: at the end of Beacon frames (if no TIM template
2728+** is configured, then transmits default TIM)
2729+** NB:
2730+** - size field must be set to size of actual template
2731+** (NOT sizeof(struct) - templates are variable in length),
2732+** size field is not itself counted.
2733+** - members flagged with an asterisk must be initialized with host,
2734+** rest must be zero filled.
2735+** - variable length fields shown only in comments */
2736+typedef struct acx_template_tim {
2737+ u16 size;
2738+ u8 tim_eid; /* 00 1 TIM IE ID * */
2739+ u8 len; /* 01 1 Length * */
2740+ u8 dtim_cnt; /* 02 1 DTIM Count */
2741+ u8 dtim_period; /* 03 1 DTIM Period */
2742+ u8 bitmap_ctrl; /* 04 1 Bitmap Control * (except bit0) */
2743+ /* 05 n Partial Virtual Bitmap * */
2744+ u8 variable[0x100 - 1-1-1-1-1];
2745+} ACX_PACKED acx_template_tim_t;
2746+
2747+typedef struct acx_template_probereq {
2748+ u16 size;
2749+ u16 fc; /* 00 2 fc * */
2750+ u16 dur; /* 02 2 Duration */
2751+ u8 da[6]; /* 04 6 Destination Address * */
2752+ u8 sa[6]; /* 0A 6 Source Address * */
2753+ u8 bssid[6]; /* 10 6 BSSID * */
2754+ u16 seq; /* 16 2 Sequence Control */
2755+ /* 18 n SSID * */
2756+ /* nn n Supported Rates * */
2757+ u8 variable[0x44 - 2-2-6-6-6-2];
2758+} ACX_PACKED acx_template_probereq_t;
2759+
2760+typedef struct acx_template_proberesp {
2761+ u16 size;
2762+ u16 fc; /* 00 2 fc * (bits [15:12] and [10:8] per 802.11 section 7.1.3.1) */
2763+ u16 dur; /* 02 2 Duration */
2764+ u8 da[6]; /* 04 6 Destination Address */
2765+ u8 sa[6]; /* 0A 6 Source Address */
2766+ u8 bssid[6]; /* 10 6 BSSID */
2767+ u16 seq; /* 16 2 Sequence Control */
2768+ u8 timestamp[8];/* 18 8 Timestamp */
2769+ u16 beacon_interval; /* 20 2 Beacon Interval * */
2770+ u16 cap; /* 22 2 Capability Information * */
2771+ /* 24 n SSID * */
2772+ /* nn n Supported Rates * */
2773+ /* nn 1 DS Parameter Set * */
2774+ u8 variable[0x54 - 2-2-6-6-6-2-8-2-2];
2775+} ACX_PACKED acx_template_proberesp_t;
2776+#define acx_template_beacon_t acx_template_proberesp_t
2777+#define acx_template_beacon acx_template_proberesp
2778+
2779+typedef struct acx_template_nullframe {
2780+ u16 size;
2781+ struct wlan_hdr_a3 hdr;
2782+} ACX_PACKED acx_template_nullframe_t;
2783+
2784+
2785+/*
2786+** JOIN command structure
2787+**
2788+** as opposed to acx100, acx111 dtim interval is AFTER rates_basic111.
2789+** NOTE: took me about an hour to get !@#$%^& packing right --> struct packing is eeeeevil... */
2790+typedef struct acx_joinbss {
2791+ u8 bssid[ETH_ALEN];
2792+ u16 beacon_interval;
2793+ union {
2794+ struct {
2795+ u8 dtim_interval;
2796+ u8 rates_basic;
2797+ u8 rates_supported;
2798+ /*
2799+ * ARM compiler doesn't pack correctly unless unions
2800+ * inside structures are multiples of 4 bytes. Ugh.
2801+ */
2802+ u8 genfrm_txrate; /* generated frame (bcn, proberesp, RTS, PSpoll) tx rate */
2803+ } ACX_PACKED acx100;
2804+ struct {
2805+ u16 rates_basic;
2806+ u8 dtim_interval;
2807+ u8 genfrm_txrate; /* generated frame (bcn, proberesp, RTS, PSpoll) tx rate */
2808+ } ACX_PACKED acx111;
2809+ /*
2810+ * ARM compiler doesn't pack correctly unles unions are aligned on
2811+ * 4 byte boundaries and are multiples of 4 bytes.
2812+ */
2813+ struct {
2814+ u8 d1;
2815+ u8 d2;
2816+ u8 d3;
2817+ u8 genfrm_txrate;
2818+ } ACX_PACKED txrate;
2819+ } ACX_PACKED u;
2820+ u8 genfrm_mod_pre; /* generated frame modulation/preamble:
2821+ ** bit7: PBCC, bit6: OFDM (else CCK/DQPSK/DBPSK)
2822+ ** bit5: short pre */
2823+ u8 macmode; /* BSS Type, must be one of ACX_MODE_xxx */
2824+ u8 channel;
2825+ u8 essid_len;
2826+ char essid[IW_ESSID_MAX_SIZE];
2827+} ACX_PACKED acx_joinbss_t;
2828+
2829+#define JOINBSS_RATES_1 0x01
2830+#define JOINBSS_RATES_2 0x02
2831+#define JOINBSS_RATES_5 0x04
2832+#define JOINBSS_RATES_11 0x08
2833+#define JOINBSS_RATES_22 0x10
2834+
2835+/* Looks like missing bits are used to indicate 11g rates!
2836+** (it follows from the fact that constants below match 1:1 to RATE111_nn)
2837+** This was actually seen! Look at that Assoc Request sent by acx111,
2838+** it _does_ contain 11g rates in basic set:
2839+01:30:20.070772 Beacon (xxx) [1.0* 2.0* 5.5* 11.0* 6.0* 9.0* 12.0* 18.0* 24.0* 36.0* 48.0* 54.0* Mbit] ESS CH: 1
2840+01:30:20.074425 Authentication (Open System)-1: Succesful
2841+01:30:20.076539 Authentication (Open System)-2:
2842+01:30:20.076620 Acknowledgment
2843+01:30:20.088546 Assoc Request (xxx) [1.0* 2.0* 5.5* 6.0* 9.0* 11.0* 12.0* 18.0* 24.0* 36.0* 48.0* 54.0* Mbit]
2844+01:30:20.122413 Assoc Response AID(1) :: Succesful
2845+01:30:20.122679 Acknowledgment
2846+01:30:20.173204 Beacon (xxx) [1.0* 2.0* 5.5* 11.0* 6.0* 9.0* 12.0* 18.0* 24.0* 36.0* 48.0* 54.0* Mbit] ESS CH: 1
2847+*/
2848+#define JOINBSS_RATES_BASIC111_1 0x0001
2849+#define JOINBSS_RATES_BASIC111_2 0x0002
2850+#define JOINBSS_RATES_BASIC111_5 0x0004
2851+#define JOINBSS_RATES_BASIC111_11 0x0020
2852+#define JOINBSS_RATES_BASIC111_22 0x0100
2853+
2854+
2855+/***********************************************************************
2856+*/
2857+typedef struct mem_read_write {
2858+ u16 addr;
2859+ u16 type; /* 0x0 int. RAM / 0xffff MAC reg. / 0x81 PHY RAM / 0x82 PHY reg.; or maybe it's actually 0x30 for MAC? Better verify it by writing and reading back and checking whether the value holds! */
2860+ u32 len;
2861+ u32 data;
2862+} ACX_PACKED mem_read_write_t;
2863+
2864+typedef struct firmware_image {
2865+ u32 chksum;
2866+ u32 size;
2867+ u8 data[1]; /* the byte array of the actual firmware... */
2868+} ACX_PACKED firmware_image_t;
2869+
2870+typedef struct acx_cmd_radioinit {
2871+ u32 offset;
2872+ u32 len;
2873+} ACX_PACKED acx_cmd_radioinit_t;
2874+
2875+typedef struct acx100_ie_wep_options {
2876+ u16 type;
2877+ u16 len;
2878+ u16 NumKeys; /* max # of keys */
2879+ u8 WEPOption; /* 0 == decrypt default key only, 1 == override decrypt */
2880+ u8 Pad; /* used only for acx111 */
2881+} ACX_PACKED acx100_ie_wep_options_t;
2882+
2883+typedef struct ie_dot11WEPDefaultKey {
2884+ u16 type;
2885+ u16 len;
2886+ u8 action;
2887+ u8 keySize;
2888+ u8 defaultKeyNum;
2889+ u8 key[29]; /* check this! was Key[19] */
2890+} ACX_PACKED ie_dot11WEPDefaultKey_t;
2891+
2892+typedef struct acx111WEPDefaultKey {
2893+ u8 MacAddr[ETH_ALEN];
2894+ u16 action; /* NOTE: this is a u16, NOT a u8!! */
2895+ u16 reserved;
2896+ u8 keySize;
2897+ u8 type;
2898+ u8 index;
2899+ u8 defaultKeyNum;
2900+ u8 counter[6];
2901+ u8 key[32]; /* up to 32 bytes (for TKIP!) */
2902+} ACX_PACKED acx111WEPDefaultKey_t;
2903+
2904+typedef struct ie_dot11WEPDefaultKeyID {
2905+ u16 type;
2906+ u16 len;
2907+ u8 KeyID;
2908+} ACX_PACKED ie_dot11WEPDefaultKeyID_t;
2909+
2910+typedef struct acx100_cmd_wep_mgmt {
2911+ u8 MacAddr[ETH_ALEN];
2912+ u16 Action;
2913+ u16 KeySize;
2914+ u8 Key[29]; /* 29*8 == 232bits == WEP256 */
2915+} ACX_PACKED acx100_cmd_wep_mgmt_t;
2916+
2917+typedef struct acx_ie_generic {
2918+ u16 type;
2919+ u16 len;
2920+ union {
2921+ /* Association ID IE: just a 16bit value: */
2922+ u16 aid;
2923+ /* generic member for quick implementation of commands */
2924+ u8 bytes[32];
2925+ } ACX_PACKED m;
2926+} ACX_PACKED acx_ie_generic_t;
2927+
2928+/***********************************************************************
2929+*/
2930+#define CHECK_SIZEOF(type,size) { \
2931+ extern void BUG_bad_size_for_##type(void); \
2932+ if (sizeof(type)!=(size)) BUG_bad_size_for_##type(); \
2933+}
2934+
2935+static inline void
2936+acx_struct_size_check(void)
2937+{
2938+ CHECK_SIZEOF(txdesc_t, 0x30);
2939+ CHECK_SIZEOF(acx100_ie_memconfigoption_t, 24);
2940+ CHECK_SIZEOF(acx100_ie_queueconfig_t, 0x20);
2941+ CHECK_SIZEOF(acx_joinbss_t, 0x30);
2942+ /* IEs need 4 bytes for (type,len) tuple */
2943+ CHECK_SIZEOF(acx111_ie_configoption_t, ACX111_IE_CONFIG_OPTIONS_LEN + 4);
2944+}
2945+
2946+
2947+/***********************************************************************
2948+** Global data
2949+*/
2950+extern const u8 acx_bitpos2ratebyte[];
2951+extern const u8 acx_bitpos2rate100[];
2952+
2953+extern const u8 acx_reg_domain_ids[];
2954+extern const char * const acx_reg_domain_strings[];
2955+enum {
2956+ acx_reg_domain_ids_len = 8
2957+};
2958+
2959+extern const struct iw_handler_def acx_ioctl_handler_def;
2960Index: linux-2.6.22/drivers/net/wireless/acx/common.c
2961===================================================================
2962--- /dev/null 1970-01-01 00:00:00.000000000 +0000
2963+++ linux-2.6.22/drivers/net/wireless/acx/common.c 2007-08-23 18:34:19.000000000 +0200
2964@@ -0,0 +1,7388 @@
2965+/***********************************************************************
2966+** Copyright (C) 2003 ACX100 Open Source Project
2967+**
2968+** The contents of this file are subject to the Mozilla Public
2969+** License Version 1.1 (the "License"); you may not use this file
2970+** except in compliance with the License. You may obtain a copy of
2971+** the License at http://www.mozilla.org/MPL/
2972+**
2973+** Software distributed under the License is distributed on an "AS
2974+** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
2975+** implied. See the License for the specific language governing
2976+** rights and limitations under the License.
2977+**
2978+** Alternatively, the contents of this file may be used under the
2979+** terms of the GNU Public License version 2 (the "GPL"), in which
2980+** case the provisions of the GPL are applicable instead of the
2981+** above. If you wish to allow the use of your version of this file
2982+** only under the terms of the GPL and not to allow others to use
2983+** your version of this file under the MPL, indicate your decision
2984+** by deleting the provisions above and replace them with the notice
2985+** and other provisions required by the GPL. If you do not delete
2986+** the provisions above, a recipient may use your version of this
2987+** file under either the MPL or the GPL.
2988+** ---------------------------------------------------------------------
2989+** Inquiries regarding the ACX100 Open Source Project can be
2990+** made directly to:
2991+**
2992+** acx100-users@lists.sf.net
2993+** http://acx100.sf.net
2994+** ---------------------------------------------------------------------
2995+*/
2996+
2997+#include <linux/version.h>
2998+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18)
2999+#include <linux/config.h>
3000+#endif
3001+#include <linux/module.h>
3002+#include <linux/kernel.h>
3003+#include <linux/sched.h>
3004+#include <linux/types.h>
3005+#include <linux/slab.h>
3006+#include <linux/delay.h>
3007+#include <linux/proc_fs.h>
3008+#include <linux/if_arp.h>
3009+#include <linux/rtnetlink.h>
3010+#include <linux/netdevice.h>
3011+#include <linux/etherdevice.h>
3012+#include <linux/wireless.h>
3013+#include <linux/pm.h>
3014+#include <linux/vmalloc.h>
3015+#include <net/iw_handler.h>
3016+
3017+#include "acx_hw.h"
3018+#include "acx.h"
3019+
3020+
3021+/***********************************************************************
3022+*/
3023+static client_t *acx_l_sta_list_alloc(acx_device_t *adev);
3024+static client_t *acx_l_sta_list_get_from_hash(acx_device_t *adev, const u8 *address);
3025+
3026+static int acx_l_process_data_frame_master(acx_device_t *adev, rxbuffer_t *rxbuf);
3027+static int acx_l_process_data_frame_client(acx_device_t *adev, rxbuffer_t *rxbuf);
3028+/* static int acx_l_process_NULL_frame(acx_device_t *adev, rxbuffer_t *rxbuf, int vala); */
3029+static int acx_l_process_mgmt_frame(acx_device_t *adev, rxbuffer_t *rxbuf);
3030+static void acx_l_process_disassoc_from_sta(acx_device_t *adev, const wlan_fr_disassoc_t *req);
3031+static void acx_l_process_disassoc_from_ap(acx_device_t *adev, const wlan_fr_disassoc_t *req);
3032+static void acx_l_process_deauth_from_sta(acx_device_t *adev, const wlan_fr_deauthen_t *req);
3033+static void acx_l_process_deauth_from_ap(acx_device_t *adev, const wlan_fr_deauthen_t *req);
3034+static int acx_l_process_probe_response(acx_device_t *adev, wlan_fr_proberesp_t *req, const rxbuffer_t *rxbuf);
3035+static int acx_l_process_assocresp(acx_device_t *adev, const wlan_fr_assocresp_t *req);
3036+static int acx_l_process_reassocresp(acx_device_t *adev, const wlan_fr_reassocresp_t *req);
3037+static int acx_l_process_authen(acx_device_t *adev, const wlan_fr_authen_t *req);
3038+static int acx_l_transmit_assocresp(acx_device_t *adev, const wlan_fr_assocreq_t *req);
3039+static int acx_l_transmit_reassocresp(acx_device_t *adev, const wlan_fr_reassocreq_t *req);
3040+static int acx_l_transmit_deauthen(acx_device_t *adev, const u8 *addr, u16 reason);
3041+static int acx_l_transmit_authen1(acx_device_t *adev);
3042+static int acx_l_transmit_authen2(acx_device_t *adev, const wlan_fr_authen_t *req, client_t *clt);
3043+static int acx_l_transmit_authen3(acx_device_t *adev, const wlan_fr_authen_t *req);
3044+static int acx_l_transmit_authen4(acx_device_t *adev, const wlan_fr_authen_t *req);
3045+static int acx_l_transmit_assoc_req(acx_device_t *adev);
3046+
3047+
3048+/***********************************************************************
3049+*/
3050+#if ACX_DEBUG
3051+unsigned int acx_debug /* will add __read_mostly later */ = ACX_DEFAULT_MSG;
3052+/* parameter is 'debug', corresponding var is acx_debug */
3053+module_param_named(debug, acx_debug, uint, 0);
3054+MODULE_PARM_DESC(debug, "Debug level mask (see L_xxx constants)");
3055+#endif
3056+
3057+#ifdef MODULE_LICENSE
3058+MODULE_LICENSE("Dual MPL/GPL");
3059+#endif
3060+/* USB had this: MODULE_AUTHOR("Martin Wawro <martin.wawro AT uni-dortmund.de>"); */
3061+MODULE_AUTHOR("ACX100 Open Source Driver development team");
3062+MODULE_DESCRIPTION("Driver for TI ACX1xx based wireless cards (CardBus/PCI/USB)");
3063+
3064+
3065+/***********************************************************************
3066+*/
3067+/* Probably a number of acx's intermediate buffers for USB transfers,
3068+** not to be confused with number of descriptors in tx/rx rings
3069+** (which are not directly accessible to host in USB devices) */
3070+#define USB_RX_CNT 10
3071+#define USB_TX_CNT 10
3072+
3073+
3074+/***********************************************************************
3075+*/
3076+
3077+/* minutes to wait until next radio recalibration: */
3078+#define RECALIB_PAUSE 5
3079+
3080+/* Please keep acx_reg_domain_ids_len in sync... */
3081+const u8 acx_reg_domain_ids[acx_reg_domain_ids_len] =
3082+ { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40, 0x41, 0x51 };
3083+static const u16 reg_domain_channel_masks[acx_reg_domain_ids_len] =
3084+#ifdef ACX_ALLOW_ALLCHANNELS
3085+ { 0x3fff, 0x07ff, 0x1fff, 0x0600, 0x1e00, 0x2000, 0x3fff, 0x01fc };
3086+#else
3087+ { 0x07ff, 0x07ff, 0x1fff, 0x0600, 0x1e00, 0x2000, 0x3fff, 0x01fc };
3088+#endif
3089+const char * const
3090+acx_reg_domain_strings[] = {
3091+ /* 0 */ " 1-11 FCC (USA)",
3092+ /* 1 */ " 1-11 DOC/IC (Canada)",
3093+/* BTW: WLAN use in ETSI is regulated by ETSI standard EN 300 328-2 V1.1.2 */
3094+ /* 2 */ " 1-13 ETSI (Europe)",
3095+ /* 3 */ "10-11 Spain",
3096+ /* 4 */ "10-13 France",
3097+ /* 5 */ " 14 MKK (Japan)",
3098+ /* 6 */ " 1-14 MKK1",
3099+ /* 7 */ " 3-9 Israel (not all firmware versions)",
3100+ NULL /* needs to remain as last entry */
3101+};
3102+
3103+
3104+
3105+/***********************************************************************
3106+** Debugging support
3107+*/
3108+#ifdef PARANOID_LOCKING
3109+static unsigned max_lock_time;
3110+static unsigned max_sem_time;
3111+
3112+void
3113+acx_lock_unhold() { max_lock_time = 0; }
3114+void
3115+acx_sem_unhold() { max_sem_time = 0; }
3116+
3117+static inline const char*
3118+sanitize_str(const char *s)
3119+{
3120+ const char* t = strrchr(s, '/');
3121+ if (t) return t + 1;
3122+ return s;
3123+}
3124+
3125+void
3126+acx_lock_debug(acx_device_t *adev, const char* where)
3127+{
3128+ unsigned int count = 100*1000*1000;
3129+ where = sanitize_str(where);
3130+ while (--count) {
3131+ if (!spin_is_locked(&adev->lock)) break;
3132+ cpu_relax();
3133+ }
3134+ if (!count) {
3135+ printk(KERN_EMERG "LOCKUP: already taken at %s!\n", adev->last_lock);
3136+ BUG();
3137+ }
3138+ adev->last_lock = where;
3139+ rdtscl(adev->lock_time);
3140+}
3141+void
3142+acx_unlock_debug(acx_device_t *adev, const char* where)
3143+{
3144+#ifdef SMP
3145+ if (!spin_is_locked(&adev->lock)) {
3146+ where = sanitize_str(where);
3147+ printk(KERN_EMERG "STRAY UNLOCK at %s!\n", where);
3148+ BUG();
3149+ }
3150+#endif
3151+ if (acx_debug & L_LOCK) {
3152+ unsigned long diff;
3153+ rdtscl(diff);
3154+ diff -= adev->lock_time;
3155+ if (diff > max_lock_time) {
3156+ where = sanitize_str(where);
3157+ printk("max lock hold time %ld CPU ticks from %s "
3158+ "to %s\n", diff, adev->last_lock, where);
3159+ max_lock_time = diff;
3160+ }
3161+ }
3162+}
3163+void
3164+acx_down_debug(acx_device_t *adev, const char* where)
3165+{
3166+ int sem_count;
3167+ unsigned long timeout = jiffies + 5*HZ;
3168+
3169+ where = sanitize_str(where);
3170+
3171+ for (;;) {
3172+ sem_count = atomic_read(&adev->sem.count);
3173+ if (sem_count) break;
3174+ if (time_after(jiffies, timeout))
3175+ break;
3176+ msleep(5);
3177+ }
3178+ if (!sem_count) {
3179+ printk(KERN_EMERG "D STATE at %s! last sem at %s\n",
3180+ where, adev->last_sem);
3181+ dump_stack();
3182+ }
3183+ adev->last_sem = where;
3184+ adev->sem_time = jiffies;
3185+ down(&adev->sem);
3186+ if (acx_debug & L_LOCK) {
3187+ printk("%s: sem_down %d -> %d\n",
3188+ where, sem_count, atomic_read(&adev->sem.count));
3189+ }
3190+}
3191+void
3192+acx_up_debug(acx_device_t *adev, const char* where)
3193+{
3194+ int sem_count = atomic_read(&adev->sem.count);
3195+ if (sem_count) {
3196+ where = sanitize_str(where);
3197+ printk(KERN_EMERG "STRAY UP at %s! sem.count=%d\n", where, sem_count);
3198+ dump_stack();
3199+ }
3200+ if (acx_debug & L_LOCK) {
3201+ unsigned long diff = jiffies - adev->sem_time;
3202+ if (diff > max_sem_time) {
3203+ where = sanitize_str(where);
3204+ printk("max sem hold time %ld jiffies from %s "
3205+ "to %s\n", diff, adev->last_sem, where);
3206+ max_sem_time = diff;
3207+ }
3208+ }
3209+ up(&adev->sem);
3210+ if (acx_debug & L_LOCK) {
3211+ where = sanitize_str(where);
3212+ printk("%s: sem_up %d -> %d\n",
3213+ where, sem_count, atomic_read(&adev->sem.count));
3214+ }
3215+}
3216+#endif /* PARANOID_LOCKING */
3217+
3218+
3219+/***********************************************************************
3220+*/
3221+#if ACX_DEBUG > 1
3222+
3223+static int acx_debug_func_indent;
3224+#define DEBUG_TSC 0
3225+#define FUNC_INDENT_INCREMENT 2
3226+
3227+#if DEBUG_TSC
3228+#define TIMESTAMP(d) unsigned long d; rdtscl(d)
3229+#else
3230+#define TIMESTAMP(d) unsigned long d = jiffies
3231+#endif
3232+
3233+static const char
3234+spaces[] = " " " "; /* Nx10 spaces */
3235+
3236+void
3237+log_fn_enter(const char *funcname)
3238+{
3239+ int indent;
3240+ TIMESTAMP(d);
3241+
3242+ indent = acx_debug_func_indent;
3243+ if (indent >= sizeof(spaces))
3244+ indent = sizeof(spaces)-1;
3245+
3246+ printk("%08ld %s==> %s\n",
3247+ d % 100000000,
3248+ spaces + (sizeof(spaces)-1) - indent,
3249+ funcname
3250+ );
3251+
3252+ acx_debug_func_indent += FUNC_INDENT_INCREMENT;
3253+}
3254+void
3255+log_fn_exit(const char *funcname)
3256+{
3257+ int indent;
3258+ TIMESTAMP(d);
3259+
3260+ acx_debug_func_indent -= FUNC_INDENT_INCREMENT;
3261+
3262+ indent = acx_debug_func_indent;
3263+ if (indent >= sizeof(spaces))
3264+ indent = sizeof(spaces)-1;
3265+
3266+ printk("%08ld %s<== %s\n",
3267+ d % 100000000,
3268+ spaces + (sizeof(spaces)-1) - indent,
3269+ funcname
3270+ );
3271+}
3272+void
3273+log_fn_exit_v(const char *funcname, int v)
3274+{
3275+ int indent;
3276+ TIMESTAMP(d);
3277+
3278+ acx_debug_func_indent -= FUNC_INDENT_INCREMENT;
3279+
3280+ indent = acx_debug_func_indent;
3281+ if (indent >= sizeof(spaces))
3282+ indent = sizeof(spaces)-1;
3283+
3284+ printk("%08ld %s<== %s: %08X\n",
3285+ d % 100000000,
3286+ spaces + (sizeof(spaces)-1) - indent,
3287+ funcname,
3288+ v
3289+ );
3290+}
3291+#endif /* ACX_DEBUG > 1 */
3292+
3293+
3294+/***********************************************************************
3295+** Basically a msleep with logging
3296+*/
3297+void
3298+acx_s_msleep(int ms)
3299+{
3300+ FN_ENTER;
3301+ msleep(ms);
3302+ FN_EXIT0;
3303+}
3304+
3305+
3306+/***********************************************************************
3307+** Not inlined: it's larger than it seems
3308+*/
3309+void
3310+acx_print_mac(const char *head, const u8 *mac, const char *tail)
3311+{
3312+ printk("%s"MACSTR"%s", head, MAC(mac), tail);
3313+}
3314+
3315+
3316+/***********************************************************************
3317+** acx_get_status_name
3318+*/
3319+static const char*
3320+acx_get_status_name(u16 status)
3321+{
3322+ static const char * const str[] = {
3323+ "STOPPED", "SCANNING", "WAIT_AUTH",
3324+ "AUTHENTICATED", "ASSOCIATED", "INVALID??"
3325+ };
3326+ if (status > VEC_SIZE(str)-1)
3327+ status = VEC_SIZE(str)-1;
3328+
3329+ return str[status];
3330+}
3331+
3332+
3333+/***********************************************************************
3334+** acx_get_packet_type_string
3335+*/
3336+#if ACX_DEBUG
3337+const char*
3338+acx_get_packet_type_string(u16 fc)
3339+{
3340+ static const char * const mgmt_arr[] = {
3341+ "MGMT/AssocReq", "MGMT/AssocResp", "MGMT/ReassocReq",
3342+ "MGMT/ReassocResp", "MGMT/ProbeReq", "MGMT/ProbeResp",
3343+ "MGMT/UNKNOWN", "MGMT/UNKNOWN", "MGMT/Beacon", "MGMT/ATIM",
3344+ "MGMT/Disassoc", "MGMT/Authen", "MGMT/Deauthen"
3345+ };
3346+ static const char * const ctl_arr[] = {
3347+ "CTL/PSPoll", "CTL/RTS", "CTL/CTS", "CTL/Ack", "CTL/CFEnd",
3348+ "CTL/CFEndCFAck"
3349+ };
3350+ static const char * const data_arr[] = {
3351+ "DATA/DataOnly", "DATA/Data CFAck", "DATA/Data CFPoll",
3352+ "DATA/Data CFAck/CFPoll", "DATA/Null", "DATA/CFAck",
3353+ "DATA/CFPoll", "DATA/CFAck/CFPoll"
3354+ };
3355+ const char *str;
3356+ u8 fstype = (WF_FC_FSTYPE & fc) >> 4;
3357+ u8 ctl;
3358+
3359+ switch (WF_FC_FTYPE & fc) {
3360+ case WF_FTYPE_MGMT:
3361+ if (fstype < VEC_SIZE(mgmt_arr))
3362+ str = mgmt_arr[fstype];
3363+ else
3364+ str = "MGMT/UNKNOWN";
3365+ break;
3366+ case WF_FTYPE_CTL:
3367+ ctl = fstype - 0x0a;
3368+ if (ctl < VEC_SIZE(ctl_arr))
3369+ str = ctl_arr[ctl];
3370+ else
3371+ str = "CTL/UNKNOWN";
3372+ break;
3373+ case WF_FTYPE_DATA:
3374+ if (fstype < VEC_SIZE(data_arr))
3375+ str = data_arr[fstype];
3376+ else
3377+ str = "DATA/UNKNOWN";
3378+ break;
3379+ default:
3380+ str = "UNKNOWN";
3381+ break;
3382+ }
3383+ return str;
3384+}
3385+#endif
3386+
3387+
3388+/***********************************************************************
3389+** acx_wlan_reason_str
3390+*/
3391+static inline const char*
3392+acx_wlan_reason_str(u16 reason)
3393+{
3394+ static const char* const reason_str[] = {
3395+ /* 0 */ "?",
3396+ /* 1 */ "unspecified",
3397+ /* 2 */ "prev auth is not valid",
3398+ /* 3 */ "leaving BBS",
3399+ /* 4 */ "due to inactivity",
3400+ /* 5 */ "AP is busy",
3401+ /* 6 */ "got class 2 frame from non-auth'ed STA",
3402+ /* 7 */ "got class 3 frame from non-assoc'ed STA",
3403+ /* 8 */ "STA has left BSS",
3404+ /* 9 */ "assoc without auth is not allowed",
3405+ /* 10 */ "bad power setting (802.11h)",
3406+ /* 11 */ "bad channel (802.11i)",
3407+ /* 12 */ "?",
3408+ /* 13 */ "invalid IE",
3409+ /* 14 */ "MIC failure",
3410+ /* 15 */ "four-way handshake timeout",
3411+ /* 16 */ "group key handshake timeout",
3412+ /* 17 */ "IE is different",
3413+ /* 18 */ "invalid group cipher",
3414+ /* 19 */ "invalid pairwise cipher",
3415+ /* 20 */ "invalid AKMP",
3416+ /* 21 */ "unsupported RSN version",
3417+ /* 22 */ "invalid RSN IE cap",
3418+ /* 23 */ "802.1x failed",
3419+ /* 24 */ "cipher suite rejected"
3420+ };
3421+ return reason < VEC_SIZE(reason_str) ? reason_str[reason] : "?";
3422+}
3423+
3424+
3425+/***********************************************************************
3426+** acx_cmd_status_str
3427+*/
3428+const char*
3429+acx_cmd_status_str(unsigned int state)
3430+{
3431+ static const char * const cmd_error_strings[] = {
3432+ "Idle",
3433+ "Success",
3434+ "Unknown Command",
3435+ "Invalid Information Element",
3436+ "Channel rejected",
3437+ "Channel invalid in current regulatory domain",
3438+ "MAC invalid",
3439+ "Command rejected (read-only information element)",
3440+ "Command rejected",
3441+ "Already asleep",
3442+ "TX in progress",
3443+ "Already awake",
3444+ "Write only",
3445+ "RX in progress",
3446+ "Invalid parameter",
3447+ "Scan in progress",
3448+ "Failed"
3449+ };
3450+ return state < VEC_SIZE(cmd_error_strings) ?
3451+ cmd_error_strings[state] : "?";
3452+}
3453+
3454+
3455+/***********************************************************************
3456+** get_status_string
3457+*/
3458+static inline const char*
3459+get_status_string(unsigned int status)
3460+{
3461+ /* A bit shortened, but hopefully still understandable */
3462+ static const char * const status_str[] = {
3463+ /* 0 */ "Successful",
3464+ /* 1 */ "Unspecified failure",
3465+ /* 2 */ "reserved",
3466+ /* 3 */ "reserved",
3467+ /* 4 */ "reserved",
3468+ /* 5 */ "reserved",
3469+ /* 6 */ "reserved",
3470+ /* 7 */ "reserved",
3471+ /* 8 */ "reserved",
3472+ /* 9 */ "reserved",
3473+ /*10 */ "Cannot support all requested capabilities in Capability Information field",
3474+ /*11 */ "Reassoc denied (reason outside of 802.11b scope)",
3475+ /*12 */ "Assoc denied (reason outside of 802.11b scope) -- maybe MAC filtering by peer?",
3476+ /*13 */ "Responding station doesnt support specified auth algorithm -- maybe WEP auth Open vs. Restricted?",
3477+ /*14 */ "Auth rejected: wrong transaction sequence number",
3478+ /*15 */ "Auth rejected: challenge failure",
3479+ /*16 */ "Auth rejected: timeout for next frame in sequence",
3480+ /*17 */ "Assoc denied: too many STAs on this AP",
3481+ /*18 */ "Assoc denied: requesting STA doesnt support all data rates in basic set",
3482+ /*19 */ "Assoc denied: requesting STA doesnt support Short Preamble",
3483+ /*20 */ "Assoc denied: requesting STA doesnt support PBCC Modulation",
3484+ /*21 */ "Assoc denied: requesting STA doesnt support Channel Agility"
3485+ /*22 */ "reserved",
3486+ /*23 */ "reserved",
3487+ /*24 */ "reserved",
3488+ /*25 */ "Assoc denied: requesting STA doesnt support Short Slot Time",
3489+ /*26 */ "Assoc denied: requesting STA doesnt support DSSS-OFDM"
3490+ };
3491+
3492+ return status_str[status < VEC_SIZE(status_str) ? status : 2];
3493+}
3494+
3495+
3496+/***********************************************************************
3497+*/
3498+void
3499+acx_log_bad_eid(wlan_hdr_t* hdr, int len, wlan_ie_t* ie_ptr)
3500+{
3501+ if (acx_debug & L_ASSOC) {
3502+ int offset = (u8*)ie_ptr - (u8*)hdr;
3503+ printk("acx: unknown EID %d in mgmt frame at offset %d. IE: ",
3504+ ie_ptr->eid, offset);
3505+ /* IE len can be bogus, IE can extend past packet end. Oh well... */
3506+ acx_dump_bytes(ie_ptr, ie_ptr->len + 2);
3507+ if (acx_debug & L_DATA) {
3508+ printk("frame (%s): ",
3509+ acx_get_packet_type_string(le16_to_cpu(hdr->fc)));
3510+ acx_dump_bytes(hdr, len);
3511+ }
3512+ }
3513+}
3514+
3515+
3516+/***********************************************************************
3517+*/
3518+#if ACX_DEBUG
3519+void
3520+acx_dump_bytes(const void *data, int num)
3521+{
3522+ const u8* ptr = (const u8*)data;
3523+
3524+ if (num <= 0) {
3525+ printk("\n");
3526+ return;
3527+ }
3528+
3529+ while (num >= 16) {
3530+ printk( "%02X %02X %02X %02X %02X %02X %02X %02X "
3531+ "%02X %02X %02X %02X %02X %02X %02X %02X\n",
3532+ ptr[0], ptr[1], ptr[2], ptr[3],
3533+ ptr[4], ptr[5], ptr[6], ptr[7],
3534+ ptr[8], ptr[9], ptr[10], ptr[11],
3535+ ptr[12], ptr[13], ptr[14], ptr[15]);
3536+ num -= 16;
3537+ ptr += 16;
3538+ }
3539+ if (num > 0) {
3540+ while (--num > 0)
3541+ printk("%02X ", *ptr++);
3542+ printk("%02X\n", *ptr);
3543+ }
3544+}
3545+#endif
3546+
3547+
3548+/***********************************************************************
3549+** acx_s_get_firmware_version
3550+*/
3551+void
3552+acx_s_get_firmware_version(acx_device_t *adev)
3553+{
3554+ fw_ver_t fw;
3555+ u8 hexarr[4] = { 0, 0, 0, 0 };
3556+ int hexidx = 0, val = 0;
3557+ const char *num;
3558+ char c;
3559+
3560+ FN_ENTER;
3561+
3562+ memset(fw.fw_id, 'E', FW_ID_SIZE);
3563+ acx_s_interrogate(adev, &fw, ACX1xx_IE_FWREV);
3564+ memcpy(adev->firmware_version, fw.fw_id, FW_ID_SIZE);
3565+ adev->firmware_version[FW_ID_SIZE] = '\0';
3566+
3567+ log(L_DEBUG, "fw_ver: fw_id='%s' hw_id=%08X\n",
3568+ adev->firmware_version, fw.hw_id);
3569+
3570+ if (strncmp(fw.fw_id, "Rev ", 4) != 0) {
3571+ printk("acx: strange firmware version string "
3572+ "'%s', please report\n", adev->firmware_version);
3573+ adev->firmware_numver = 0x01090407; /* assume 1.9.4.7 */
3574+ } else {
3575+ num = &fw.fw_id[4];
3576+ while (1) {
3577+ c = *num++;
3578+ if ((c == '.') || (c == '\0')) {
3579+ hexarr[hexidx++] = val;
3580+ if ((hexidx > 3) || (c == '\0')) /* end? */
3581+ break;
3582+ val = 0;
3583+ continue;
3584+ }
3585+ if ((c >= '0') && (c <= '9'))
3586+ c -= '0';
3587+ else
3588+ c = c - 'a' + (char)10;
3589+ val = val*16 + c;
3590+ }
3591+
3592+ adev->firmware_numver = (u32)(
3593+ (hexarr[0] << 24) | (hexarr[1] << 16)
3594+ | (hexarr[2] << 8) | hexarr[3]);
3595+ log(L_DEBUG, "firmware_numver 0x%08X\n", adev->firmware_numver);
3596+ }
3597+ if (IS_ACX111(adev)) {
3598+ if (adev->firmware_numver == 0x00010011) {
3599+ /* This one does not survive floodpinging */
3600+ printk("acx: firmware '%s' is known to be buggy, "
3601+ "please upgrade\n", adev->firmware_version);
3602+ }
3603+ }
3604+
3605+ adev->firmware_id = le32_to_cpu(fw.hw_id);
3606+
3607+ /* we're able to find out more detailed chip names now */
3608+ switch (adev->firmware_id & 0xffff0000) {
3609+ case 0x01010000:
3610+ case 0x01020000:
3611+ adev->chip_name = "TNETW1100A";
3612+ break;
3613+ case 0x01030000:
3614+ adev->chip_name = "TNETW1100B";
3615+ break;
3616+ case 0x03000000:
3617+ case 0x03010000:
3618+ adev->chip_name = "TNETW1130";
3619+ break;
3620+ case 0x04030000: /* 0x04030101 is TNETW1450 */
3621+ adev->chip_name = "TNETW1450";
3622+ break;
3623+ default:
3624+ printk("acx: unknown chip ID 0x%08X, "
3625+ "please report\n", adev->firmware_id);
3626+ break;
3627+ }
3628+
3629+ FN_EXIT0;
3630+}
3631+
3632+
3633+/***********************************************************************
3634+** acx_display_hardware_details
3635+**
3636+** Displays hw/fw version, radio type etc...
3637+*/
3638+void
3639+acx_display_hardware_details(acx_device_t *adev)
3640+{
3641+ const char *radio_str, *form_str;
3642+
3643+ FN_ENTER;
3644+
3645+ switch (adev->radio_type) {
3646+ case RADIO_MAXIM_0D:
3647+ radio_str = "Maxim";
3648+ break;
3649+ case RADIO_RFMD_11:
3650+ radio_str = "RFMD";
3651+ break;
3652+ case RADIO_RALINK_15:
3653+ radio_str = "Ralink";
3654+ break;
3655+ case RADIO_RADIA_16:
3656+ radio_str = "Radia";
3657+ break;
3658+ case RADIO_UNKNOWN_17:
3659+ /* TI seems to have a radio which is
3660+ * additionally 802.11a capable, too */
3661+ radio_str = "802.11a/b/g radio?! Please report";
3662+ break;
3663+ case RADIO_UNKNOWN_19:
3664+ radio_str = "A radio used by Safecom cards?! Please report";
3665+ break;
3666+ case RADIO_UNKNOWN_1B:
3667+ radio_str = "An unknown radio used by TNETW1450 USB adapters";
3668+ break;
3669+ default:
3670+ radio_str = "UNKNOWN, please report radio type name!";
3671+ break;
3672+ }
3673+
3674+ switch (adev->form_factor) {
3675+ case 0x00:
3676+ form_str = "unspecified";
3677+ break;
3678+ case 0x01:
3679+ form_str = "(mini-)PCI / CardBus";
3680+ break;
3681+ case 0x02:
3682+ form_str = "USB";
3683+ break;
3684+ case 0x03:
3685+ form_str = "Compact Flash";
3686+ break;
3687+ default:
3688+ form_str = "UNKNOWN, please report";
3689+ break;
3690+ }
3691+
3692+ printk("acx: === chipset %s, radio type 0x%02X (%s), "
3693+ "form factor 0x%02X (%s), EEPROM version 0x%02X: "
3694+ "uploaded firmware '%s' ===\n",
3695+ adev->chip_name, adev->radio_type, radio_str,
3696+ adev->form_factor, form_str, adev->eeprom_version,
3697+ adev->firmware_version);
3698+
3699+ FN_EXIT0;
3700+}
3701+
3702+
3703+/***********************************************************************
3704+*/
3705+int
3706+acx_e_change_mtu(struct net_device *ndev, int mtu)
3707+{
3708+ enum {
3709+ MIN_MTU = 256,
3710+ MAX_MTU = WLAN_DATA_MAXLEN - (ETH_HLEN)
3711+ };
3712+
3713+ if (mtu < MIN_MTU || mtu > MAX_MTU)
3714+ return -EINVAL;
3715+
3716+ ndev->mtu = mtu;
3717+ return 0;
3718+}
3719+
3720+
3721+/***********************************************************************
3722+** acx_e_get_stats, acx_e_get_wireless_stats
3723+*/
3724+struct net_device_stats*
3725+acx_e_get_stats(struct net_device *ndev)
3726+{
3727+ acx_device_t *adev = ndev2adev(ndev);
3728+ return &adev->stats;
3729+}
3730+
3731+struct iw_statistics*
3732+acx_e_get_wireless_stats(struct net_device *ndev)
3733+{
3734+ acx_device_t *adev = ndev2adev(ndev);
3735+ return &adev->wstats;
3736+}
3737+
3738+
3739+/***********************************************************************
3740+** maps acx111 tx descr rate field to acx100 one
3741+*/
3742+const u8
3743+acx_bitpos2rate100[] = {
3744+ RATE100_1 ,/* 0 */
3745+ RATE100_2 ,/* 1 */
3746+ RATE100_5 ,/* 2 */
3747+ RATE100_2 ,/* 3, should not happen */
3748+ RATE100_2 ,/* 4, should not happen */
3749+ RATE100_11 ,/* 5 */
3750+ RATE100_2 ,/* 6, should not happen */
3751+ RATE100_2 ,/* 7, should not happen */
3752+ RATE100_22 ,/* 8 */
3753+ RATE100_2 ,/* 9, should not happen */
3754+ RATE100_2 ,/* 10, should not happen */
3755+ RATE100_2 ,/* 11, should not happen */
3756+ RATE100_2 ,/* 12, should not happen */
3757+ RATE100_2 ,/* 13, should not happen */
3758+ RATE100_2 ,/* 14, should not happen */
3759+ RATE100_2 ,/* 15, should not happen */
3760+};
3761+
3762+u8
3763+acx_rate111to100(u16 r) {
3764+ return acx_bitpos2rate100[highest_bit(r)];
3765+}
3766+
3767+
3768+/***********************************************************************
3769+** Calculate level like the feb 2003 windows driver seems to do
3770+*/
3771+static u8
3772+acx_signal_to_winlevel(u8 rawlevel)
3773+{
3774+ /* u8 winlevel = (u8) (0.5 + 0.625 * rawlevel); */
3775+ u8 winlevel = ((4 + (rawlevel * 5)) / 8);
3776+
3777+ if (winlevel > 100)
3778+ winlevel = 100;
3779+ return winlevel;
3780+}
3781+
3782+u8
3783+acx_signal_determine_quality(u8 signal, u8 noise)
3784+{
3785+ int qual;
3786+
3787+ qual = (((signal - 30) * 100 / 70) + (100 - noise * 4)) / 2;
3788+
3789+ if (qual > 100)
3790+ return 100;
3791+ if (qual < 0)
3792+ return 0;
3793+ return qual;
3794+}
3795+
3796+
3797+/***********************************************************************
3798+** Interrogate/configure commands
3799+*/
3800+
3801+/* FIXME: the lengths given here probably aren't always correct.
3802+ * They should be gradually replaced by proper "sizeof(acx1XX_ie_XXXX)-4",
3803+ * unless the firmware actually expects a different length than the struct length */
3804+static const u16
3805+acx100_ie_len[] = {
3806+ 0,
3807+ ACX100_IE_ACX_TIMER_LEN,
3808+ sizeof(acx100_ie_powersave_t)-4, /* is that 6 or 8??? */
3809+ ACX1xx_IE_QUEUE_CONFIG_LEN,
3810+ ACX100_IE_BLOCK_SIZE_LEN,
3811+ ACX1xx_IE_MEMORY_CONFIG_OPTIONS_LEN,
3812+ ACX1xx_IE_RATE_FALLBACK_LEN,
3813+ ACX100_IE_WEP_OPTIONS_LEN,
3814+ ACX1xx_IE_MEMORY_MAP_LEN, /* ACX1xx_IE_SSID_LEN, */
3815+ 0,
3816+ ACX1xx_IE_ASSOC_ID_LEN,
3817+ 0,
3818+ ACX111_IE_CONFIG_OPTIONS_LEN,
3819+ ACX1xx_IE_FWREV_LEN,
3820+ ACX1xx_IE_FCS_ERROR_COUNT_LEN,
3821+ ACX1xx_IE_MEDIUM_USAGE_LEN,
3822+ ACX1xx_IE_RXCONFIG_LEN,
3823+ 0,
3824+ 0,
3825+ sizeof(fw_stats_t)-4,
3826+ 0,
3827+ ACX1xx_IE_FEATURE_CONFIG_LEN,
3828+ ACX111_IE_KEY_CHOOSE_LEN,
3829+ ACX1FF_IE_MISC_CONFIG_TABLE_LEN,
3830+ ACX1FF_IE_WONE_CONFIG_LEN,
3831+ 0,
3832+ ACX1FF_IE_TID_CONFIG_LEN,
3833+ 0,
3834+ 0,
3835+ 0,
3836+ ACX1FF_IE_CALIB_ASSESSMENT_LEN,
3837+ ACX1FF_IE_BEACON_FILTER_OPTIONS_LEN,
3838+ ACX1FF_IE_LOW_RSSI_THRESH_OPT_LEN,
3839+ ACX1FF_IE_NOISE_HISTOGRAM_RESULTS_LEN,
3840+ 0,
3841+ ACX1FF_IE_PACKET_DETECT_THRESH_LEN,
3842+ ACX1FF_IE_TX_CONFIG_OPTIONS_LEN,
3843+ ACX1FF_IE_CCA_THRESHOLD_LEN,
3844+ ACX1FF_IE_EVENT_MASK_LEN,
3845+ ACX1FF_IE_DTIM_PERIOD_LEN,
3846+ 0,
3847+ ACX1FF_IE_ACI_CONFIG_SET_LEN,
3848+ 0,
3849+ 0,
3850+ 0,
3851+ 0,
3852+ 0,
3853+ 0,
3854+ ACX1FF_IE_EEPROM_VER_LEN,
3855+};
3856+
3857+static const u16
3858+acx100_ie_len_dot11[] = {
3859+ 0,
3860+ ACX1xx_IE_DOT11_STATION_ID_LEN,
3861+ 0,
3862+ ACX100_IE_DOT11_BEACON_PERIOD_LEN,
3863+ ACX1xx_IE_DOT11_DTIM_PERIOD_LEN,
3864+ ACX1xx_IE_DOT11_SHORT_RETRY_LIMIT_LEN,
3865+ ACX1xx_IE_DOT11_LONG_RETRY_LIMIT_LEN,
3866+ ACX100_IE_DOT11_WEP_DEFAULT_KEY_WRITE_LEN,
3867+ ACX1xx_IE_DOT11_MAX_XMIT_MSDU_LIFETIME_LEN,
3868+ 0,
3869+ ACX1xx_IE_DOT11_CURRENT_REG_DOMAIN_LEN,
3870+ ACX1xx_IE_DOT11_CURRENT_ANTENNA_LEN,
3871+ 0,
3872+ ACX1xx_IE_DOT11_TX_POWER_LEVEL_LEN,
3873+ ACX1xx_IE_DOT11_CURRENT_CCA_MODE_LEN,
3874+ ACX100_IE_DOT11_ED_THRESHOLD_LEN,
3875+ ACX1xx_IE_DOT11_WEP_DEFAULT_KEY_SET_LEN,
3876+ 0,
3877+ 0,
3878+ 0,
3879+};
3880+
3881+static const u16
3882+acx111_ie_len[] = {
3883+ 0,
3884+ ACX100_IE_ACX_TIMER_LEN,
3885+ sizeof(acx111_ie_powersave_t)-4,
3886+ ACX1xx_IE_QUEUE_CONFIG_LEN,
3887+ ACX100_IE_BLOCK_SIZE_LEN,
3888+ ACX1xx_IE_MEMORY_CONFIG_OPTIONS_LEN,
3889+ ACX1xx_IE_RATE_FALLBACK_LEN,
3890+ ACX100_IE_WEP_OPTIONS_LEN,
3891+ ACX1xx_IE_MEMORY_MAP_LEN, /* ACX1xx_IE_SSID_LEN, */
3892+ 0,
3893+ ACX1xx_IE_ASSOC_ID_LEN,
3894+ 0,
3895+ ACX111_IE_CONFIG_OPTIONS_LEN,
3896+ ACX1xx_IE_FWREV_LEN,
3897+ ACX1xx_IE_FCS_ERROR_COUNT_LEN,
3898+ ACX1xx_IE_MEDIUM_USAGE_LEN,
3899+ ACX1xx_IE_RXCONFIG_LEN,
3900+ 0,
3901+ 0,
3902+ sizeof(fw_stats_t)-4,
3903+ 0,
3904+ ACX1xx_IE_FEATURE_CONFIG_LEN,
3905+ ACX111_IE_KEY_CHOOSE_LEN,
3906+ ACX1FF_IE_MISC_CONFIG_TABLE_LEN,
3907+ ACX1FF_IE_WONE_CONFIG_LEN,
3908+ 0,
3909+ ACX1FF_IE_TID_CONFIG_LEN,
3910+ 0,
3911+ 0,
3912+ 0,
3913+ ACX1FF_IE_CALIB_ASSESSMENT_LEN,
3914+ ACX1FF_IE_BEACON_FILTER_OPTIONS_LEN,
3915+ ACX1FF_IE_LOW_RSSI_THRESH_OPT_LEN,
3916+ ACX1FF_IE_NOISE_HISTOGRAM_RESULTS_LEN,
3917+ 0,
3918+ ACX1FF_IE_PACKET_DETECT_THRESH_LEN,
3919+ ACX1FF_IE_TX_CONFIG_OPTIONS_LEN,
3920+ ACX1FF_IE_CCA_THRESHOLD_LEN,
3921+ ACX1FF_IE_EVENT_MASK_LEN,
3922+ ACX1FF_IE_DTIM_PERIOD_LEN,
3923+ 0,
3924+ ACX1FF_IE_ACI_CONFIG_SET_LEN,
3925+ 0,
3926+ 0,
3927+ 0,
3928+ 0,
3929+ 0,
3930+ 0,
3931+ ACX1FF_IE_EEPROM_VER_LEN,
3932+};
3933+
3934+static const u16
3935+acx111_ie_len_dot11[] = {
3936+ 0,
3937+ ACX1xx_IE_DOT11_STATION_ID_LEN,
3938+ 0,
3939+ ACX100_IE_DOT11_BEACON_PERIOD_LEN,
3940+ ACX1xx_IE_DOT11_DTIM_PERIOD_LEN,
3941+ ACX1xx_IE_DOT11_SHORT_RETRY_LIMIT_LEN,
3942+ ACX1xx_IE_DOT11_LONG_RETRY_LIMIT_LEN,
3943+ ACX100_IE_DOT11_WEP_DEFAULT_KEY_WRITE_LEN,
3944+ ACX1xx_IE_DOT11_MAX_XMIT_MSDU_LIFETIME_LEN,
3945+ 0,
3946+ ACX1xx_IE_DOT11_CURRENT_REG_DOMAIN_LEN,
3947+ ACX1xx_IE_DOT11_CURRENT_ANTENNA_LEN,
3948+ 0,
3949+ ACX1xx_IE_DOT11_TX_POWER_LEVEL_LEN,
3950+ ACX1xx_IE_DOT11_CURRENT_CCA_MODE_LEN,
3951+ ACX100_IE_DOT11_ED_THRESHOLD_LEN,
3952+ ACX1xx_IE_DOT11_WEP_DEFAULT_KEY_SET_LEN,
3953+ 0,
3954+ 0,
3955+ 0,
3956+};
3957+
3958+
3959+#undef FUNC
3960+#define FUNC "configure"
3961+#if !ACX_DEBUG
3962+int
3963+acx_s_configure(acx_device_t *adev, void *pdr, int type)
3964+{
3965+#else
3966+int
3967+acx_s_configure_debug(acx_device_t *adev, void *pdr, int type, const char* typestr)
3968+{
3969+#endif
3970+ u16 len;
3971+ int res;
3972+
3973+ if (type < 0x1000)
3974+ len = adev->ie_len[type];
3975+ else
3976+ len = adev->ie_len_dot11[type - 0x1000];
3977+
3978+ log(L_CTL, FUNC"(type:%s,len:%u)\n", typestr, len);
3979+ if (unlikely(!len)) {
3980+ log(L_DEBUG, "zero-length type %s?!\n", typestr);
3981+ }
3982+
3983+ ((acx_ie_generic_t *)pdr)->type = cpu_to_le16(type);
3984+ ((acx_ie_generic_t *)pdr)->len = cpu_to_le16(len);
3985+ res = acx_s_issue_cmd(adev, ACX1xx_CMD_CONFIGURE, pdr, len + 4);
3986+ if (unlikely(OK != res)) {
3987+#if ACX_DEBUG
3988+ printk("%s: "FUNC"(type:%s) FAILED\n", adev->ndev->name, typestr);
3989+#else
3990+ printk("%s: "FUNC"(type:0x%X) FAILED\n", adev->ndev->name, type);
3991+#endif
3992+ /* dump_stack() is already done in issue_cmd() */
3993+ }
3994+ return res;
3995+}
3996+
3997+#undef FUNC
3998+#define FUNC "interrogate"
3999+#if !ACX_DEBUG
4000+int
4001+acx_s_interrogate(acx_device_t *adev, void *pdr, int type)
4002+{
4003+#else
4004+int
4005+acx_s_interrogate_debug(acx_device_t *adev, void *pdr, int type,
4006+ const char* typestr)
4007+{
4008+#endif
4009+ u16 len;
4010+ int res;
4011+
4012+ /* FIXME: no check whether this exceeds the array yet.
4013+ * We should probably remember the number of entries... */
4014+ if (type < 0x1000)
4015+ len = adev->ie_len[type];
4016+ else
4017+ len = adev->ie_len_dot11[type-0x1000];
4018+
4019+ log(L_CTL, FUNC"(type:%s,len:%u)\n", typestr, len);
4020+
4021+ ((acx_ie_generic_t *)pdr)->type = cpu_to_le16(type);
4022+ ((acx_ie_generic_t *)pdr)->len = cpu_to_le16(len);
4023+ res = acx_s_issue_cmd(adev, ACX1xx_CMD_INTERROGATE, pdr, len + 4);
4024+ if (unlikely(OK != res)) {
4025+#if ACX_DEBUG
4026+ printk("%s: "FUNC"(type:%s) FAILED\n", adev->ndev->name, typestr);
4027+#else
4028+ printk("%s: "FUNC"(type:0x%X) FAILED\n", adev->ndev->name, type);
4029+#endif
4030+ /* dump_stack() is already done in issue_cmd() */
4031+ }
4032+ return res;
4033+}
4034+
4035+#if CMD_DISCOVERY
4036+void
4037+great_inquisitor(acx_device_t *adev)
4038+{
4039+ static struct {
4040+ u16 type;
4041+ u16 len;
4042+ /* 0x200 was too large here: */
4043+ u8 data[0x100 - 4];
4044+ } ACX_PACKED ie;
4045+ u16 type;
4046+
4047+ FN_ENTER;
4048+
4049+ /* 0..0x20, 0x1000..0x1020 */
4050+ for (type = 0; type <= 0x1020; type++) {
4051+ if (type == 0x21)
4052+ type = 0x1000;
4053+ ie.type = cpu_to_le16(type);
4054+ ie.len = cpu_to_le16(sizeof(ie) - 4);
4055+ acx_s_issue_cmd(adev, ACX1xx_CMD_INTERROGATE, &ie, sizeof(ie));
4056+ }
4057+ FN_EXIT0;
4058+}
4059+#endif
4060+
4061+
4062+#ifdef CONFIG_PROC_FS
4063+/***********************************************************************
4064+** /proc files
4065+*/
4066+/***********************************************************************
4067+** acx_l_proc_output
4068+** Generate content for our /proc entry
4069+**
4070+** Arguments:
4071+** buf is a pointer to write output to
4072+** adev is the usual pointer to our private struct acx_device
4073+** Returns:
4074+** number of bytes actually written to buf
4075+** Side effects:
4076+** none
4077+*/
4078+static int
4079+acx_l_proc_output(char *buf, acx_device_t *adev)
4080+{
4081+ char *p = buf;
4082+ int i;
4083+
4084+ FN_ENTER;
4085+
4086+ p += sprintf(p,
4087+ "acx driver version:\t\t" ACX_RELEASE "\n"
4088+ "Wireless extension version:\t" STRING(WIRELESS_EXT) "\n"
4089+ "chip name:\t\t\t%s (0x%08X)\n"
4090+ "radio type:\t\t\t0x%02X\n"
4091+ "form factor:\t\t\t0x%02X\n"
4092+ "EEPROM version:\t\t\t0x%02X\n"
4093+ "firmware version:\t\t%s (0x%08X)\n",
4094+ adev->chip_name, adev->firmware_id,
4095+ adev->radio_type,
4096+ adev->form_factor,
4097+ adev->eeprom_version,
4098+ adev->firmware_version, adev->firmware_numver);
4099+
4100+ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) {
4101+ struct client *bss = &adev->sta_list[i];
4102+ if (!bss->used) continue;
4103+ p += sprintf(p, "BSS %u BSSID "MACSTR" ESSID %s channel %u "
4104+ "Cap 0x%X SIR %u SNR %u\n",
4105+ i, MAC(bss->bssid), (char*)bss->essid, bss->channel,
4106+ bss->cap_info, bss->sir, bss->snr);
4107+ }
4108+ p += sprintf(p, "status:\t\t\t%u (%s)\n",
4109+ adev->status, acx_get_status_name(adev->status));
4110+
4111+ FN_EXIT1(p - buf);
4112+ return p - buf;
4113+}
4114+
4115+
4116+/***********************************************************************
4117+*/
4118+static int
4119+acx_s_proc_diag_output(char *buf, acx_device_t *adev)
4120+{
4121+ char *p = buf;
4122+ unsigned long flags;
4123+ unsigned int len = 0, partlen;
4124+ u32 temp1, temp2;
4125+ u8 *st, *st_end;
4126+#ifdef __BIG_ENDIAN
4127+ u8 *st2;
4128+#endif
4129+ fw_stats_t *fw_stats;
4130+ char *part_str = NULL;
4131+ fw_stats_tx_t *tx = NULL;
4132+ fw_stats_rx_t *rx = NULL;
4133+ fw_stats_dma_t *dma = NULL;
4134+ fw_stats_irq_t *irq = NULL;
4135+ fw_stats_wep_t *wep = NULL;
4136+ fw_stats_pwr_t *pwr = NULL;
4137+ fw_stats_mic_t *mic = NULL;
4138+ fw_stats_aes_t *aes = NULL;
4139+ fw_stats_event_t *evt = NULL;
4140+
4141+ FN_ENTER;
4142+
4143+ acx_lock(adev, flags);
4144+
4145+#if defined (ACX_MEM)
4146+ p = acxmem_s_proc_diag_output(p, adev);
4147+#else
4148+ if (IS_PCI(adev))
4149+ p = acxpci_s_proc_diag_output(p, adev);
4150+#endif
4151+
4152+ p += sprintf(p,
4153+ "\n"
4154+ "** network status **\n"
4155+ "dev_state_mask 0x%04X\n"
4156+ "status %u (%s), "
4157+ "mode %u, channel %u, "
4158+ "reg_dom_id 0x%02X, reg_dom_chanmask 0x%04X, ",
4159+ adev->dev_state_mask,
4160+ adev->status, acx_get_status_name(adev->status),
4161+ adev->mode, adev->channel,
4162+ adev->reg_dom_id, adev->reg_dom_chanmask
4163+ );
4164+ p += sprintf(p,
4165+ "ESSID \"%s\", essid_active %d, essid_len %d, "
4166+ "essid_for_assoc \"%s\", nick \"%s\"\n"
4167+ "WEP ena %d, restricted %d, idx %d\n",
4168+ adev->essid, adev->essid_active, (int)adev->essid_len,
4169+ adev->essid_for_assoc, adev->nick,
4170+ adev->wep_enabled, adev->wep_restricted,
4171+ adev->wep_current_index);
4172+ p += sprintf(p, "dev_addr "MACSTR"\n", MAC(adev->dev_addr));
4173+ p += sprintf(p, "bssid "MACSTR"\n", MAC(adev->bssid));
4174+ p += sprintf(p, "ap_filter "MACSTR"\n", MAC(adev->ap));
4175+
4176+ p += sprintf(p,
4177+ "\n"
4178+ "** PHY status **\n"
4179+ "tx_disabled %d, tx_level_dbm %d\n" /* "tx_level_val %d, tx_level_auto %d\n" */
4180+ "sensitivity %d, antenna 0x%02X, ed_threshold %d, cca %d, preamble_mode %d\n"
4181+ "rate_basic 0x%04X, rate_oper 0x%04X\n"
4182+ "rts_threshold %d, frag_threshold %d, short_retry %d, long_retry %d\n"
4183+ "msdu_lifetime %d, listen_interval %d, beacon_interval %d\n",
4184+ adev->tx_disabled, adev->tx_level_dbm, /* adev->tx_level_val, adev->tx_level_auto, */
4185+ adev->sensitivity, adev->antenna, adev->ed_threshold, adev->cca, adev->preamble_mode,
4186+ adev->rate_basic, adev->rate_oper,
4187+ adev->rts_threshold, adev->frag_threshold, adev->short_retry, adev->long_retry,
4188+ adev->msdu_lifetime, adev->listen_interval, adev->beacon_interval);
4189+
4190+ acx_unlock(adev, flags);
4191+
4192+ p += sprintf(p,
4193+ "\n"
4194+ "** Firmware **\n"
4195+ "NOTE: version dependent statistics layout, "
4196+ "please report if you suspect wrong parsing!\n"
4197+ "\n"
4198+ "version \"%s\"\n", adev->firmware_version);
4199+
4200+ /* TODO: may replace kmalloc/memset with kzalloc once
4201+ * Linux 2.6.14 is widespread */
4202+ fw_stats = kmalloc(sizeof(*fw_stats), GFP_KERNEL);
4203+ if (!fw_stats) {
4204+ FN_EXIT1(0);
4205+ return 0;
4206+ }
4207+ memset(fw_stats, 0, sizeof(*fw_stats));
4208+
4209+ st = (u8 *)fw_stats;
4210+
4211+ part_str = "statistics query command";
4212+
4213+ if (OK != acx_s_interrogate(adev, st, ACX1xx_IE_FIRMWARE_STATISTICS))
4214+ goto fw_stats_end;
4215+
4216+ st += sizeof(u16);
4217+ len = *(u16 *)st;
4218+
4219+ if (len > sizeof(*fw_stats)) {
4220+ p += sprintf(p,
4221+ "firmware version with bigger fw_stats struct detected\n"
4222+ "(%u vs. %u), please report\n", len, sizeof(fw_stats_t));
4223+ if (len > sizeof(*fw_stats)) {
4224+ p += sprintf(p, "struct size exceeded allocation!\n");
4225+ len = sizeof(*fw_stats);
4226+ }
4227+ }
4228+ st += sizeof(u16);
4229+ st_end = st - 2*sizeof(u16) + len;
4230+
4231+#ifdef __BIG_ENDIAN
4232+ /* let's make one bold assumption here:
4233+ * (hopefully!) *all* statistics fields are u32 only,
4234+ * thus if we need to make endianness corrections
4235+ * we can simply do them in one go, in advance */
4236+ st2 = (u8 *)fw_stats;
4237+ for (temp1 = 0; temp1 < len; temp1 += 4, st2 += 4)
4238+ *(u32 *)st2 = le32_to_cpu(*(u32 *)st2);
4239+#endif
4240+
4241+ part_str = "Rx/Tx";
4242+
4243+ /* directly at end of a struct part? --> no error! */
4244+ if (st == st_end)
4245+ goto fw_stats_end;
4246+
4247+ tx = (fw_stats_tx_t *)st;
4248+ st += sizeof(fw_stats_tx_t);
4249+ rx = (fw_stats_rx_t *)st;
4250+ st += sizeof(fw_stats_rx_t);
4251+ partlen = sizeof(fw_stats_tx_t) + sizeof(fw_stats_rx_t);
4252+
4253+ if (IS_ACX100(adev)) {
4254+ /* at least ACX100 PCI F/W 1.9.8.b
4255+ * and ACX100 USB F/W 1.0.7-USB
4256+ * don't have those two fields... */
4257+ st -= 2*sizeof(u32);
4258+
4259+ /* our parsing doesn't quite match this firmware yet,
4260+ * log failure */
4261+ if (st > st_end)
4262+ goto fw_stats_fail;
4263+ temp1 = temp2 = 999999999;
4264+ } else {
4265+ if (st > st_end)
4266+ goto fw_stats_fail;
4267+ temp1 = rx->rx_aci_events;
4268+ temp2 = rx->rx_aci_resets;
4269+ }
4270+
4271+ p += sprintf(p,
4272+ "%s:\n"
4273+ " tx_desc_overfl %u\n"
4274+ " rx_OutOfMem %u, rx_hdr_overfl %u, rx_hw_stuck %u\n"
4275+ " rx_dropped_frame %u, rx_frame_ptr_err %u, rx_xfr_hint_trig %u\n"
4276+ " rx_aci_events %u, rx_aci_resets %u\n",
4277+ part_str,
4278+ tx->tx_desc_of,
4279+ rx->rx_oom,
4280+ rx->rx_hdr_of,
4281+ rx->rx_hw_stuck,
4282+ rx->rx_dropped_frame,
4283+ rx->rx_frame_ptr_err,
4284+ rx->rx_xfr_hint_trig,
4285+ temp1,
4286+ temp2);
4287+
4288+ part_str = "DMA";
4289+
4290+ if (st == st_end)
4291+ goto fw_stats_end;
4292+
4293+ dma = (fw_stats_dma_t *)st;
4294+ partlen = sizeof(fw_stats_dma_t);
4295+ st += partlen;
4296+
4297+ if (st > st_end)
4298+ goto fw_stats_fail;
4299+
4300+ p += sprintf(p,
4301+ "%s:\n"
4302+ " rx_dma_req %u, rx_dma_err %u, tx_dma_req %u, tx_dma_err %u\n",
4303+ part_str,
4304+ dma->rx_dma_req,
4305+ dma->rx_dma_err,
4306+ dma->tx_dma_req,
4307+ dma->tx_dma_err);
4308+
4309+ part_str = "IRQ";
4310+
4311+ if (st == st_end)
4312+ goto fw_stats_end;
4313+
4314+ irq = (fw_stats_irq_t *)st;
4315+ partlen = sizeof(fw_stats_irq_t);
4316+ st += partlen;
4317+
4318+ if (st > st_end)
4319+ goto fw_stats_fail;
4320+
4321+ p += sprintf(p,
4322+ "%s:\n"
4323+ " cmd_cplt %u, fiq %u\n"
4324+ " rx_hdrs %u, rx_cmplt %u, rx_mem_overfl %u, rx_rdys %u\n"
4325+ " irqs %u, tx_procs %u, decrypt_done %u\n"
4326+ " dma_0_done %u, dma_1_done %u, tx_exch_complet %u\n"
4327+ " commands %u, rx_procs %u, hw_pm_mode_changes %u\n"
4328+ " host_acks %u, pci_pm %u, acm_wakeups %u\n",
4329+ part_str,
4330+ irq->cmd_cplt,
4331+ irq->fiq,
4332+ irq->rx_hdrs,
4333+ irq->rx_cmplt,
4334+ irq->rx_mem_of,
4335+ irq->rx_rdys,
4336+ irq->irqs,
4337+ irq->tx_procs,
4338+ irq->decrypt_done,
4339+ irq->dma_0_done,
4340+ irq->dma_1_done,
4341+ irq->tx_exch_complet,
4342+ irq->commands,
4343+ irq->rx_procs,
4344+ irq->hw_pm_mode_changes,
4345+ irq->host_acks,
4346+ irq->pci_pm,
4347+ irq->acm_wakeups);
4348+
4349+ part_str = "WEP";
4350+
4351+ if (st == st_end)
4352+ goto fw_stats_end;
4353+
4354+ wep = (fw_stats_wep_t *)st;
4355+ partlen = sizeof(fw_stats_wep_t);
4356+ st += partlen;
4357+
4358+ if (
4359+ (IS_PCI(adev) && IS_ACX100(adev))
4360+ || (IS_USB(adev) && IS_ACX100(adev))
4361+ || (IS_MEM(adev) && IS_ACX100(adev))
4362+ ) {
4363+ /* at least ACX100 PCI F/W 1.9.8.b,
4364+ * ACX100 USB F/W 1.0.7-USB
4365+ * and ACX100 Generic Slave F/W 1.10.7.K
4366+ * don't have those two fields...
4367+ */
4368+ st -= 2*sizeof(u32);
4369+ if (st > st_end)
4370+ goto fw_stats_fail;
4371+ temp1 = temp2 = 999999999;
4372+ } else {
4373+ if (st > st_end)
4374+ goto fw_stats_fail;
4375+ temp1 = wep->wep_pkt_decrypt;
4376+ temp2 = wep->wep_decrypt_irqs;
4377+ }
4378+
4379+ p += sprintf(p,
4380+ "%s:\n"
4381+ " wep_key_count %u, wep_default_key_count %u, dot11_def_key_mib %u\n"
4382+ " wep_key_not_found %u, wep_decrypt_fail %u\n"
4383+ " wep_pkt_decrypt %u, wep_decrypt_irqs %u\n",
4384+ part_str,
4385+ wep->wep_key_count,
4386+ wep->wep_default_key_count,
4387+ wep->dot11_def_key_mib,
4388+ wep->wep_key_not_found,
4389+ wep->wep_decrypt_fail,
4390+ temp1,
4391+ temp2);
4392+
4393+ part_str = "power";
4394+
4395+ if (st == st_end)
4396+ goto fw_stats_end;
4397+
4398+ pwr = (fw_stats_pwr_t *)st;
4399+ partlen = sizeof(fw_stats_pwr_t);
4400+ st += partlen;
4401+
4402+ if (st > st_end)
4403+ goto fw_stats_fail;
4404+
4405+ p += sprintf(p,
4406+ "%s:\n"
4407+ " tx_start_ctr %u, no_ps_tx_too_short %u\n"
4408+ " rx_start_ctr %u, no_ps_rx_too_short %u\n"
4409+ " lppd_started %u\n"
4410+ " no_lppd_too_noisy %u, no_lppd_too_short %u, no_lppd_matching_frame %u\n",
4411+ part_str,
4412+ pwr->tx_start_ctr,
4413+ pwr->no_ps_tx_too_short,
4414+ pwr->rx_start_ctr,
4415+ pwr->no_ps_rx_too_short,
4416+ pwr->lppd_started,
4417+ pwr->no_lppd_too_noisy,
4418+ pwr->no_lppd_too_short,
4419+ pwr->no_lppd_matching_frame);
4420+
4421+ part_str = "MIC";
4422+
4423+ if (st == st_end)
4424+ goto fw_stats_end;
4425+
4426+ mic = (fw_stats_mic_t *)st;
4427+ partlen = sizeof(fw_stats_mic_t);
4428+ st += partlen;
4429+
4430+ if (st > st_end)
4431+ goto fw_stats_fail;
4432+
4433+ p += sprintf(p,
4434+ "%s:\n"
4435+ " mic_rx_pkts %u, mic_calc_fail %u\n",
4436+ part_str,
4437+ mic->mic_rx_pkts,
4438+ mic->mic_calc_fail);
4439+
4440+ part_str = "AES";
4441+
4442+ if (st == st_end)
4443+ goto fw_stats_end;
4444+
4445+ aes = (fw_stats_aes_t *)st;
4446+ partlen = sizeof(fw_stats_aes_t);
4447+ st += partlen;
4448+
4449+ if (st > st_end)
4450+ goto fw_stats_fail;
4451+
4452+ p += sprintf(p,
4453+ "%s:\n"
4454+ " aes_enc_fail %u, aes_dec_fail %u\n"
4455+ " aes_enc_pkts %u, aes_dec_pkts %u\n"
4456+ " aes_enc_irq %u, aes_dec_irq %u\n",
4457+ part_str,
4458+ aes->aes_enc_fail,
4459+ aes->aes_dec_fail,
4460+ aes->aes_enc_pkts,
4461+ aes->aes_dec_pkts,
4462+ aes->aes_enc_irq,
4463+ aes->aes_dec_irq);
4464+
4465+ part_str = "event";
4466+
4467+ if (st == st_end)
4468+ goto fw_stats_end;
4469+
4470+ evt = (fw_stats_event_t *)st;
4471+ partlen = sizeof(fw_stats_event_t);
4472+ st += partlen;
4473+
4474+ if (st > st_end)
4475+ goto fw_stats_fail;
4476+
4477+ p += sprintf(p,
4478+ "%s:\n"
4479+ " heartbeat %u, calibration %u\n"
4480+ " rx_mismatch %u, rx_mem_empty %u, rx_pool %u\n"
4481+ " oom_late %u\n"
4482+ " phy_tx_err %u, tx_stuck %u\n",
4483+ part_str,
4484+ evt->heartbeat,
4485+ evt->calibration,
4486+ evt->rx_mismatch,
4487+ evt->rx_mem_empty,
4488+ evt->rx_pool,
4489+ evt->oom_late,
4490+ evt->phy_tx_err,
4491+ evt->tx_stuck);
4492+
4493+ if (st < st_end)
4494+ goto fw_stats_bigger;
4495+
4496+ goto fw_stats_end;
4497+
4498+fw_stats_fail:
4499+ st -= partlen;
4500+ p += sprintf(p,
4501+ "failed at %s part (size %u), offset %u (struct size %u), "
4502+ "please report\n", part_str, partlen,
4503+ (int)st - (int)fw_stats, len);
4504+
4505+fw_stats_bigger:
4506+ for (; st < st_end; st += 4)
4507+ p += sprintf(p,
4508+ "UNKN%3d: %u\n", (int)st - (int)fw_stats, *(u32 *)st);
4509+
4510+fw_stats_end:
4511+ kfree(fw_stats);
4512+
4513+ FN_EXIT1(p - buf);
4514+ return p - buf;
4515+}
4516+
4517+
4518+/***********************************************************************
4519+*/
4520+static int
4521+acx_s_proc_phy_output(char *buf, acx_device_t *adev)
4522+{
4523+ char *p = buf;
4524+ int i;
4525+
4526+ FN_ENTER;
4527+
4528+ /*
4529+ if (RADIO_RFMD_11 != adev->radio_type) {
4530+ printk("sorry, not yet adapted for radio types "
4531+ "other than RFMD, please verify "
4532+ "PHY size etc. first!\n");
4533+ goto end;
4534+ }
4535+ */
4536+
4537+ /* The PHY area is only 0x80 bytes long; further pages after that
4538+ * only have some page number registers with altered value,
4539+ * all other registers remain the same. */
4540+ for (i = 0; i < 0x80; i++) {
4541+ acx_s_read_phy_reg(adev, i, p++);
4542+ }
4543+
4544+ FN_EXIT1(p - buf);
4545+ return p - buf;
4546+}
4547+
4548+
4549+/***********************************************************************
4550+** acx_e_read_proc_XXXX
4551+** Handle our /proc entry
4552+**
4553+** Arguments:
4554+** standard kernel read_proc interface
4555+** Returns:
4556+** number of bytes written to buf
4557+** Side effects:
4558+** none
4559+*/
4560+static int
4561+acx_e_read_proc(char *buf, char **start, off_t offset, int count,
4562+ int *eof, void *data)
4563+{
4564+ acx_device_t *adev = (acx_device_t*)data;
4565+ unsigned long flags;
4566+ int length;
4567+
4568+ FN_ENTER;
4569+
4570+ acx_sem_lock(adev);
4571+ acx_lock(adev, flags);
4572+ /* fill buf */
4573+ length = acx_l_proc_output(buf, adev);
4574+ acx_unlock(adev, flags);
4575+ acx_sem_unlock(adev);
4576+
4577+ /* housekeeping */
4578+ if (length <= offset + count)
4579+ *eof = 1;
4580+ *start = buf + offset;
4581+ length -= offset;
4582+ if (length > count)
4583+ length = count;
4584+ if (length < 0)
4585+ length = 0;
4586+ FN_EXIT1(length);
4587+ return length;
4588+}
4589+
4590+static char _buf[32768];
4591+static int
4592+acx_e_read_proc_diag(char *buf, char **start, off_t offset, int count,
4593+ int *eof, void *data)
4594+{
4595+ acx_device_t *adev = (acx_device_t*)data;
4596+ int length;
4597+
4598+ FN_ENTER;
4599+
4600+ acx_sem_lock(adev);
4601+ /* fill buf */
4602+ length = acx_s_proc_diag_output(_buf, adev);
4603+ acx_sem_unlock(adev);
4604+
4605+ memcpy(buf, _buf + offset, count);
4606+
4607+ /* housekeeping */
4608+ if (length <= offset + count)
4609+ *eof = 1;
4610+ *start = count;
4611+ length -= offset;
4612+ if (length > count)
4613+ length = count;
4614+ if (length < 0)
4615+ length = 0;
4616+ FN_EXIT1(length);
4617+ return length;
4618+}
4619+
4620+static int
4621+acx_e_read_proc_eeprom(char *buf, char **start, off_t offset, int count,
4622+ int *eof, void *data)
4623+{
4624+ acx_device_t *adev = (acx_device_t*)data;
4625+ int length;
4626+
4627+ FN_ENTER;
4628+
4629+ /* fill buf */
4630+ length = 0;
4631+#if defined (ACX_MEM)
4632+ acx_sem_lock(adev);
4633+ length = acxmem_proc_eeprom_output(buf, adev);
4634+ acx_sem_unlock(adev);
4635+#else
4636+ if (IS_PCI(adev)) {
4637+ acx_sem_lock(adev);
4638+ length = acxpci_proc_eeprom_output(buf, adev);
4639+ acx_sem_unlock(adev);
4640+ }
4641+#endif
4642+
4643+ /* housekeeping */
4644+ if (length <= offset + count)
4645+ *eof = 1;
4646+ *start = buf + offset;
4647+ length -= offset;
4648+ if (length > count)
4649+ length = count;
4650+ if (length < 0)
4651+ length = 0;
4652+ FN_EXIT1(length);
4653+ return length;
4654+}
4655+
4656+static int
4657+acx_e_read_proc_phy(char *buf, char **start, off_t offset, int count,
4658+ int *eof, void *data)
4659+{
4660+ acx_device_t *adev = (acx_device_t*)data;
4661+ int length;
4662+
4663+ FN_ENTER;
4664+
4665+ acx_sem_lock(adev);
4666+ /* fill buf */
4667+ length = acx_s_proc_phy_output(buf, adev);
4668+ acx_sem_unlock(adev);
4669+
4670+ /* housekeeping */
4671+ if (length <= offset + count)
4672+ *eof = 1;
4673+ *start = buf + offset;
4674+ length -= offset;
4675+ if (length > count)
4676+ length = count;
4677+ if (length < 0)
4678+ length = 0;
4679+ FN_EXIT1(length);
4680+ return length;
4681+}
4682+
4683+
4684+/***********************************************************************
4685+** /proc files registration
4686+*/
4687+static const char * const
4688+proc_files[] = { "", "_diag", "_eeprom", "_phy" };
4689+
4690+static read_proc_t * const
4691+proc_funcs[] = {
4692+ acx_e_read_proc,
4693+ acx_e_read_proc_diag,
4694+ acx_e_read_proc_eeprom,
4695+ acx_e_read_proc_phy
4696+};
4697+
4698+static int
4699+manage_proc_entries(const struct net_device *ndev, int remove)
4700+{
4701+ acx_device_t *adev = ndev2adev((struct net_device *)ndev);
4702+ char procbuf[80];
4703+ int i;
4704+
4705+ for (i = 0; i < VEC_SIZE(proc_files); i++) {
4706+ snprintf(procbuf, sizeof(procbuf),
4707+ "driver/acx_%s%s", ndev->name, proc_files[i]);
4708+ log(L_INIT, "%sing /proc entry %s\n",
4709+ remove ? "remov" : "creat", procbuf);
4710+ if (!remove) {
4711+ if (!create_proc_read_entry(procbuf, 0, 0, proc_funcs[i], adev)) {
4712+ printk("acx: cannot register /proc entry %s\n", procbuf);
4713+ return NOT_OK;
4714+ }
4715+ } else {
4716+ remove_proc_entry(procbuf, NULL);
4717+ }
4718+ }
4719+ return OK;
4720+}
4721+
4722+int
4723+acx_proc_register_entries(const struct net_device *ndev)
4724+{
4725+ return manage_proc_entries(ndev, 0);
4726+}
4727+
4728+int
4729+acx_proc_unregister_entries(const struct net_device *ndev)
4730+{
4731+ return manage_proc_entries(ndev, 1);
4732+}
4733+#endif /* CONFIG_PROC_FS */
4734+
4735+
4736+/***********************************************************************
4737+** acx_cmd_join_bssid
4738+**
4739+** Common code for both acx100 and acx111.
4740+*/
4741+/* NB: does NOT match RATE100_nn but matches ACX[111]_SCAN_RATE_n */
4742+static const u8
4743+bitpos2genframe_txrate[] = {
4744+ 10, /* 0. 1 Mbit/s */
4745+ 20, /* 1. 2 Mbit/s */
4746+ 55, /* 2. 5.5 Mbit/s */
4747+ 0x0B, /* 3. 6 Mbit/s */
4748+ 0x0F, /* 4. 9 Mbit/s */
4749+ 110, /* 5. 11 Mbit/s */
4750+ 0x0A, /* 6. 12 Mbit/s */
4751+ 0x0E, /* 7. 18 Mbit/s */
4752+ 220, /* 8. 22 Mbit/s */
4753+ 0x09, /* 9. 24 Mbit/s */
4754+ 0x0D, /* 10. 36 Mbit/s */
4755+ 0x08, /* 11. 48 Mbit/s */
4756+ 0x0C, /* 12. 54 Mbit/s */
4757+ 10, /* 13. 1 Mbit/s, should never happen */
4758+ 10, /* 14. 1 Mbit/s, should never happen */
4759+ 10, /* 15. 1 Mbit/s, should never happen */
4760+};
4761+
4762+/* Looks scary, eh?
4763+** Actually, each one compiled into one AND and one SHIFT,
4764+** 31 bytes in x86 asm (more if uints are replaced by u16/u8) */
4765+static inline unsigned int
4766+rate111to5bits(unsigned int rate)
4767+{
4768+ return (rate & 0x7)
4769+ | ( (rate & RATE111_11) / (RATE111_11/JOINBSS_RATES_11) )
4770+ | ( (rate & RATE111_22) / (RATE111_22/JOINBSS_RATES_22) )
4771+ ;
4772+}
4773+
4774+static void
4775+acx_s_cmd_join_bssid(acx_device_t *adev, const u8 *bssid)
4776+{
4777+ acx_joinbss_t tmp;
4778+ int dtim_interval;
4779+ int i;
4780+
4781+ if (mac_is_zero(bssid))
4782+ return;
4783+
4784+ FN_ENTER;
4785+
4786+ dtim_interval = (ACX_MODE_0_ADHOC == adev->mode) ?
4787+ 1 : adev->dtim_interval;
4788+
4789+ memset(&tmp, 0, sizeof(tmp));
4790+
4791+ for (i = 0; i < ETH_ALEN; i++) {
4792+ tmp.bssid[i] = bssid[ETH_ALEN-1 - i];
4793+ }
4794+
4795+ tmp.beacon_interval = cpu_to_le16(adev->beacon_interval);
4796+
4797+ /* Basic rate set. Control frame responses (such as ACK or CTS frames)
4798+ ** are sent with one of these rates */
4799+ if (IS_ACX111(adev)) {
4800+ /* It was experimentally determined that rates_basic
4801+ ** can take 11g rates as well, not only rates
4802+ ** defined with JOINBSS_RATES_BASIC111_nnn.
4803+ ** Just use RATE111_nnn constants... */
4804+ tmp.u.acx111.dtim_interval = dtim_interval;
4805+ tmp.u.acx111.rates_basic = cpu_to_le16(adev->rate_basic);
4806+ log(L_ASSOC, "rates_basic:%04X, rates_supported:%04X\n",
4807+ adev->rate_basic, adev->rate_oper);
4808+ } else {
4809+ tmp.u.acx100.dtim_interval = dtim_interval;
4810+ tmp.u.acx100.rates_basic = rate111to5bits(adev->rate_basic);
4811+ tmp.u.acx100.rates_supported = rate111to5bits(adev->rate_oper);
4812+ log(L_ASSOC, "rates_basic:%04X->%02X, "
4813+ "rates_supported:%04X->%02X\n",
4814+ adev->rate_basic, tmp.u.acx100.rates_basic,
4815+ adev->rate_oper, tmp.u.acx100.rates_supported);
4816+ }
4817+
4818+ /* Setting up how Beacon, Probe Response, RTS, and PS-Poll frames
4819+ ** will be sent (rate/modulation/preamble) */
4820+ tmp.u.txrate.genfrm_txrate = bitpos2genframe_txrate[lowest_bit(adev->rate_basic)];
4821+ tmp.genfrm_mod_pre = 0; /* FIXME: was = adev->capab_short (which was always 0); */
4822+ /* we can use short pre *if* all peers can understand it */
4823+ /* FIXME #2: we need to correctly set PBCC/OFDM bits here too */
4824+
4825+ /* we switch fw to STA mode in MONITOR mode, it seems to be
4826+ ** the only mode where fw does not emit beacons by itself
4827+ ** but allows us to send anything (we really want to retain
4828+ ** ability to tx arbitrary frames in MONITOR mode)
4829+ */
4830+ tmp.macmode = (adev->mode != ACX_MODE_MONITOR ? adev->mode : ACX_MODE_2_STA);
4831+ tmp.channel = adev->channel;
4832+ tmp.essid_len = adev->essid_len;
4833+ /* NOTE: the code memcpy'd essid_len + 1 before, which is WRONG! */
4834+ memcpy(tmp.essid, adev->essid, tmp.essid_len);
4835+ acx_s_issue_cmd(adev, ACX1xx_CMD_JOIN, &tmp, tmp.essid_len + 0x11);
4836+
4837+ log(L_ASSOC|L_DEBUG, "BSS_Type = %u\n", tmp.macmode);
4838+ acxlog_mac(L_ASSOC|L_DEBUG, "JoinBSSID MAC:", adev->bssid, "\n");
4839+
4840+ acx_update_capabilities(adev);
4841+ FN_EXIT0;
4842+}
4843+
4844+
4845+/***********************************************************************
4846+** acx_s_cmd_start_scan
4847+**
4848+** Issue scan command to the hardware
4849+**
4850+** unified function for both ACX111 and ACX100
4851+*/
4852+static void
4853+acx_s_scan_chan(acx_device_t *adev)
4854+{
4855+ union {
4856+ acx111_scan_t acx111;
4857+ acx100_scan_t acx100;
4858+ } s;
4859+
4860+ FN_ENTER;
4861+
4862+ memset(&s, 0, sizeof(s));
4863+
4864+ /* first common positions... */
4865+
4866+ s.acx111.count = cpu_to_le16(adev->scan_count);
4867+ s.acx111.rate = adev->scan_rate;
4868+ s.acx111.options = adev->scan_mode;
4869+ s.acx111.chan_duration = cpu_to_le16(adev->scan_duration);
4870+ s.acx111.max_probe_delay = cpu_to_le16(adev->scan_probe_delay);
4871+
4872+ /* ...then differences */
4873+
4874+ if (IS_ACX111(adev)) {
4875+ s.acx111.channel_list_select = 0; /* scan every allowed channel */
4876+ /*s.acx111.channel_list_select = 1;*/ /* scan given channels */
4877+ /*s.acx111.modulation = 0x40;*/ /* long preamble? OFDM? -> only for active scan */
4878+ s.acx111.modulation = 0;
4879+ /*s.acx111.channel_list[0] = 6;
4880+ s.acx111.channel_list[1] = 4;*/
4881+ } else {
4882+ s.acx100.start_chan = cpu_to_le16(1);
4883+ s.acx100.flags = cpu_to_le16(0x8000);
4884+ }
4885+
4886+ acx_s_issue_cmd(adev, ACX1xx_CMD_SCAN, &s, sizeof(s));
4887+ FN_EXIT0;
4888+}
4889+
4890+
4891+void
4892+acx_s_cmd_start_scan(acx_device_t *adev)
4893+{
4894+ /* time_before check is 'just in case' thing */
4895+ if (!(adev->irq_status & HOST_INT_SCAN_COMPLETE)
4896+ && time_before(jiffies, adev->scan_start + 10*HZ)
4897+ ) {
4898+ log(L_INIT, "start_scan: seems like previous scan "
4899+ "is still running. Not starting anew. Please report\n");
4900+ return;
4901+ }
4902+
4903+ log(L_INIT, "starting radio scan\n");
4904+ /* remember that fw is commanded to do scan */
4905+ adev->scan_start = jiffies;
4906+ CLEAR_BIT(adev->irq_status, HOST_INT_SCAN_COMPLETE);
4907+ /* issue it */
4908+ acx_s_scan_chan(adev);
4909+}
4910+
4911+
4912+/***********************************************************************
4913+** acx111 feature config
4914+*/
4915+static int
4916+acx111_s_get_feature_config(acx_device_t *adev,
4917+ u32 *feature_options, u32 *data_flow_options)
4918+{
4919+ struct acx111_ie_feature_config feat;
4920+
4921+ if (!IS_ACX111(adev)) {
4922+ return NOT_OK;
4923+ }
4924+
4925+ memset(&feat, 0, sizeof(feat));
4926+
4927+ if (OK != acx_s_interrogate(adev, &feat, ACX1xx_IE_FEATURE_CONFIG)) {
4928+ return NOT_OK;
4929+ }
4930+ log(L_DEBUG,
4931+ "got Feature option:0x%X, DataFlow option: 0x%X\n",
4932+ feat.feature_options,
4933+ feat.data_flow_options);
4934+
4935+ if (feature_options)
4936+ *feature_options = le32_to_cpu(feat.feature_options);
4937+ if (data_flow_options)
4938+ *data_flow_options = le32_to_cpu(feat.data_flow_options);
4939+
4940+ return OK;
4941+}
4942+
4943+static int
4944+acx111_s_set_feature_config(acx_device_t *adev,
4945+ u32 feature_options, u32 data_flow_options,
4946+ unsigned int mode /* 0 == remove, 1 == add, 2 == set */)
4947+{
4948+ struct acx111_ie_feature_config feat;
4949+
4950+ if (!IS_ACX111(adev)) {
4951+ return NOT_OK;
4952+ }
4953+
4954+ if ((mode < 0) || (mode > 2))
4955+ return NOT_OK;
4956+
4957+ if (mode != 2)
4958+ /* need to modify old data */
4959+ acx111_s_get_feature_config(adev, &feat.feature_options, &feat.data_flow_options);
4960+ else {
4961+ /* need to set a completely new value */
4962+ feat.feature_options = 0;
4963+ feat.data_flow_options = 0;
4964+ }
4965+
4966+ if (mode == 0) { /* remove */
4967+ CLEAR_BIT(feat.feature_options, cpu_to_le32(feature_options));
4968+ CLEAR_BIT(feat.data_flow_options, cpu_to_le32(data_flow_options));
4969+ } else { /* add or set */
4970+ SET_BIT(feat.feature_options, cpu_to_le32(feature_options));
4971+ SET_BIT(feat.data_flow_options, cpu_to_le32(data_flow_options));
4972+ }
4973+
4974+ log(L_DEBUG,
4975+ "old: feature 0x%08X dataflow 0x%08X. mode: %u\n"
4976+ "new: feature 0x%08X dataflow 0x%08X\n",
4977+ feature_options, data_flow_options, mode,
4978+ le32_to_cpu(feat.feature_options),
4979+ le32_to_cpu(feat.data_flow_options));
4980+
4981+ if (OK != acx_s_configure(adev, &feat, ACX1xx_IE_FEATURE_CONFIG)) {
4982+ return NOT_OK;
4983+ }
4984+
4985+ return OK;
4986+}
4987+
4988+static inline int
4989+acx111_s_feature_off(acx_device_t *adev, u32 f, u32 d)
4990+{
4991+ return acx111_s_set_feature_config(adev, f, d, 0);
4992+}
4993+static inline int
4994+acx111_s_feature_on(acx_device_t *adev, u32 f, u32 d)
4995+{
4996+ return acx111_s_set_feature_config(adev, f, d, 1);
4997+}
4998+static inline int
4999+acx111_s_feature_set(acx_device_t *adev, u32 f, u32 d)
5000+{
5001+ return acx111_s_set_feature_config(adev, f, d, 2);
5002+}
5003+
5004+
5005+/***********************************************************************
5006+** acx100_s_init_memory_pools
5007+*/
5008+static int
5009+acx100_s_init_memory_pools(acx_device_t *adev, const acx_ie_memmap_t *mmt)
5010+{
5011+ acx100_ie_memblocksize_t MemoryBlockSize;
5012+ acx100_ie_memconfigoption_t MemoryConfigOption;
5013+ int TotalMemoryBlocks;
5014+ int RxBlockNum;
5015+ int TotalRxBlockSize;
5016+ int TxBlockNum;
5017+ int TotalTxBlockSize;
5018+
5019+ FN_ENTER;
5020+
5021+ /* Let's see if we can follow this:
5022+ first we select our memory block size (which I think is
5023+ completely arbitrary) */
5024+ MemoryBlockSize.size = cpu_to_le16(adev->memblocksize);
5025+
5026+ /* Then we alert the card to our decision of block size */
5027+ if (OK != acx_s_configure(adev, &MemoryBlockSize, ACX100_IE_BLOCK_SIZE)) {
5028+ goto bad;
5029+ }
5030+
5031+ /* We figure out how many total blocks we can create, using
5032+ the block size we chose, and the beginning and ending
5033+ memory pointers, i.e.: end-start/size */
5034+ TotalMemoryBlocks = (le32_to_cpu(mmt->PoolEnd) - le32_to_cpu(mmt->PoolStart)) / adev->memblocksize;
5035+
5036+ log(L_DEBUG, "TotalMemoryBlocks=%u (%u bytes)\n",
5037+ TotalMemoryBlocks, TotalMemoryBlocks*adev->memblocksize);
5038+
5039+ /* MemoryConfigOption.DMA_config bitmask:
5040+ access to ACX memory is to be done:
5041+ 0x00080000 using PCI conf space?!
5042+ 0x00040000 using IO instructions?
5043+ 0x00000000 using memory access instructions
5044+ 0x00020000 using local memory block linked list (else what?)
5045+ 0x00010000 using host indirect descriptors (else host must access ACX memory?)
5046+ */
5047+#if defined (ACX_MEM)
5048+ /*
5049+ * ACX ignores DMA_config for generic slave mode.
5050+ */
5051+ MemoryConfigOption.DMA_config = 0;
5052+ /* Declare start of the Rx host pool */
5053+ MemoryConfigOption.pRxHostDesc = cpu2acx(0);
5054+ log(L_DEBUG, "pRxHostDesc 0x%08X, rxhostdesc_startphy 0x%lX\n",
5055+ acx2cpu(MemoryConfigOption.pRxHostDesc),
5056+ (long)adev->rxhostdesc_startphy);
5057+#else
5058+ if (IS_PCI(adev)) {
5059+ MemoryConfigOption.DMA_config = cpu_to_le32(0x30000);
5060+ /* Declare start of the Rx host pool */
5061+ MemoryConfigOption.pRxHostDesc = cpu2acx(adev->rxhostdesc_startphy);
5062+ log(L_DEBUG, "pRxHostDesc 0x%08X, rxhostdesc_startphy 0x%lX\n",
5063+ acx2cpu(MemoryConfigOption.pRxHostDesc),
5064+ (long)adev->rxhostdesc_startphy);
5065+ } else {
5066+ MemoryConfigOption.DMA_config = cpu_to_le32(0x20000);
5067+ }
5068+#endif
5069+
5070+ /* 50% of the allotment of memory blocks go to tx descriptors */
5071+ TxBlockNum = TotalMemoryBlocks / 2;
5072+ MemoryConfigOption.TxBlockNum = cpu_to_le16(TxBlockNum);
5073+
5074+ /* and 50% go to the rx descriptors */
5075+ RxBlockNum = TotalMemoryBlocks - TxBlockNum;
5076+ MemoryConfigOption.RxBlockNum = cpu_to_le16(RxBlockNum);
5077+
5078+ /* size of the tx and rx descriptor queues */
5079+ TotalTxBlockSize = TxBlockNum * adev->memblocksize;
5080+ TotalRxBlockSize = RxBlockNum * adev->memblocksize;
5081+ log(L_DEBUG, "TxBlockNum %u RxBlockNum %u TotalTxBlockSize %u "
5082+ "TotalTxBlockSize %u\n", TxBlockNum, RxBlockNum,
5083+ TotalTxBlockSize, TotalRxBlockSize);
5084+
5085+
5086+ /* align the tx descriptor queue to an alignment of 0x20 (32 bytes) */
5087+ MemoryConfigOption.rx_mem =
5088+ cpu_to_le32((le32_to_cpu(mmt->PoolStart) + 0x1f) & ~0x1f);
5089+
5090+ /* align the rx descriptor queue to units of 0x20
5091+ * and offset it by the tx descriptor queue */
5092+ MemoryConfigOption.tx_mem =
5093+ cpu_to_le32((le32_to_cpu(mmt->PoolStart) + TotalRxBlockSize + 0x1f) & ~0x1f);
5094+ log(L_DEBUG, "rx_mem %08X rx_mem %08X\n",
5095+ MemoryConfigOption.tx_mem, MemoryConfigOption.rx_mem);
5096+
5097+ /* alert the device to our decision */
5098+ if (OK != acx_s_configure(adev, &MemoryConfigOption, ACX1xx_IE_MEMORY_CONFIG_OPTIONS)) {
5099+ goto bad;
5100+ }
5101+
5102+ /* and tell the device to kick it into gear */
5103+ if (OK != acx_s_issue_cmd(adev, ACX100_CMD_INIT_MEMORY, NULL, 0)) {
5104+ goto bad;
5105+ }
5106+#ifdef ACX_MEM
5107+ /*
5108+ * slave memory interface has to manage the transmit pools for the ACX,
5109+ * so it needs to know what we chose here.
5110+ */
5111+ adev->acx_txbuf_start = MemoryConfigOption.tx_mem;
5112+ adev->acx_txbuf_numblocks = MemoryConfigOption.TxBlockNum;
5113+#endif
5114+
5115+ FN_EXIT1(OK);
5116+ return OK;
5117+bad:
5118+ FN_EXIT1(NOT_OK);
5119+ return NOT_OK;
5120+}
5121+
5122+
5123+/***********************************************************************
5124+** acx100_s_create_dma_regions
5125+**
5126+** Note that this fn messes up heavily with hardware, but we cannot
5127+** lock it (we need to sleep). Not a problem since IRQs can't happen
5128+*/
5129+static int
5130+acx100_s_create_dma_regions(acx_device_t *adev)
5131+{
5132+ acx100_ie_queueconfig_t queueconf;
5133+ acx_ie_memmap_t memmap;
5134+ int res = NOT_OK;
5135+ u32 tx_queue_start, rx_queue_start;
5136+
5137+ FN_ENTER;
5138+
5139+ /* read out the acx100 physical start address for the queues */
5140+ if (OK != acx_s_interrogate(adev, &memmap, ACX1xx_IE_MEMORY_MAP)) {
5141+ goto fail;
5142+ }
5143+
5144+ tx_queue_start = le32_to_cpu(memmap.QueueStart);
5145+ rx_queue_start = tx_queue_start + TX_CNT * sizeof(txdesc_t);
5146+
5147+ log(L_DEBUG, "initializing Queue Indicator\n");
5148+
5149+ memset(&queueconf, 0, sizeof(queueconf));
5150+
5151+ /* Not needed for PCI or slave memory, so we can avoid setting them altogether */
5152+ if (IS_USB(adev)) {
5153+ queueconf.NumTxDesc = USB_TX_CNT;
5154+ queueconf.NumRxDesc = USB_RX_CNT;
5155+ }
5156+
5157+ /* calculate size of queues */
5158+ queueconf.AreaSize = cpu_to_le32(
5159+ TX_CNT * sizeof(txdesc_t) +
5160+ RX_CNT * sizeof(rxdesc_t) + 8
5161+ );
5162+ queueconf.NumTxQueues = 1; /* number of tx queues */
5163+ /* sets the beginning of the tx descriptor queue */
5164+ queueconf.TxQueueStart = memmap.QueueStart;
5165+ /* done by memset: queueconf.TxQueuePri = 0; */
5166+ queueconf.RxQueueStart = cpu_to_le32(rx_queue_start);
5167+ queueconf.QueueOptions = 1; /* auto reset descriptor */
5168+ /* sets the end of the rx descriptor queue */
5169+ queueconf.QueueEnd = cpu_to_le32(
5170+ rx_queue_start + RX_CNT * sizeof(rxdesc_t)
5171+ );
5172+ /* sets the beginning of the next queue */
5173+ queueconf.HostQueueEnd = cpu_to_le32(le32_to_cpu(queueconf.QueueEnd) + 8);
5174+ if (OK != acx_s_configure(adev, &queueconf, ACX1xx_IE_QUEUE_CONFIG)) {
5175+ goto fail;
5176+ }
5177+
5178+#if defined (ACX_MEM)
5179+ /* sets the beginning of the rx descriptor queue, after the tx descrs */
5180+ adev->acx_queue_indicator =
5181+ (queueindicator_t *) le32_to_cpu (queueconf.QueueEnd);
5182+ if (OK != acxmem_s_create_hostdesc_queues(adev))
5183+ goto fail;
5184+
5185+ acxmem_create_desc_queues(adev, tx_queue_start, rx_queue_start);
5186+#else
5187+ if (IS_PCI(adev)) {
5188+ /* sets the beginning of the rx descriptor queue, after the tx descrs */
5189+ if (OK != acxpci_s_create_hostdesc_queues(adev))
5190+ goto fail;
5191+ acxpci_create_desc_queues(adev, tx_queue_start, rx_queue_start);
5192+ }
5193+#endif
5194+
5195+ if (OK != acx_s_interrogate(adev, &memmap, ACX1xx_IE_MEMORY_MAP)) {
5196+ goto fail;
5197+ }
5198+
5199+ /*
5200+ * Have to make sure we skip past the Queue Indicator (QueueEnd) and Host Queue Indicator
5201+ * maps, each of which are 8 bytes and follow immediately after the transmit and
5202+ * receive queues.
5203+ */
5204+ memmap.PoolStart = cpu_to_le32(
5205+ (le32_to_cpu(memmap.QueueEnd) + 4 + 0x1f) & ~0x1f
5206+ );
5207+
5208+ if (OK != acx_s_configure(adev, &memmap, ACX1xx_IE_MEMORY_MAP)) {
5209+ goto fail;
5210+ }
5211+
5212+ if (OK != acx100_s_init_memory_pools(adev, &memmap)) {
5213+ goto fail;
5214+ }
5215+
5216+ res = OK;
5217+ goto end;
5218+
5219+fail:
5220+ acx_s_msleep(1000); /* ? */
5221+#if defined (ACX_MEM)
5222+ acxmem_free_desc_queues(adev);
5223+#else
5224+ if (IS_PCI(adev))
5225+ acxpci_free_desc_queues(adev);
5226+#endif
5227+end:
5228+ FN_EXIT1(res);
5229+ return res;
5230+}
5231+
5232+
5233+/***********************************************************************
5234+** acx111_s_create_dma_regions
5235+**
5236+** Note that this fn messes heavily with hardware, but we cannot
5237+** lock it (we need to sleep). Not a problem since IRQs can't happen
5238+*/
5239+#define ACX111_PERCENT(percent) ((percent)/5)
5240+
5241+static int
5242+acx111_s_create_dma_regions(acx_device_t *adev)
5243+{
5244+ struct acx111_ie_memoryconfig memconf;
5245+ struct acx111_ie_queueconfig queueconf;
5246+ u32 tx_queue_start, rx_queue_start;
5247+
5248+ FN_ENTER;
5249+
5250+ /* Calculate memory positions and queue sizes */
5251+
5252+ /* Set up our host descriptor pool + data pool */
5253+#if defined (ACX_MEM)
5254+ if (OK != acxmem_s_create_hostdesc_queues(adev))
5255+ goto fail;
5256+#else
5257+ if (IS_PCI(adev)) {
5258+ if (OK != acxpci_s_create_hostdesc_queues(adev))
5259+ goto fail;
5260+ }
5261+#endif
5262+
5263+ memset(&memconf, 0, sizeof(memconf));
5264+ /* the number of STAs (STA contexts) to support
5265+ ** NB: was set to 1 and everything seemed to work nevertheless... */
5266+ memconf.no_of_stations = cpu_to_le16(VEC_SIZE(adev->sta_list));
5267+ /* specify the memory block size. Default is 256 */
5268+ memconf.memory_block_size = cpu_to_le16(adev->memblocksize);
5269+ /* let's use 50%/50% for tx/rx (specify percentage, units of 5%) */
5270+ memconf.tx_rx_memory_block_allocation = ACX111_PERCENT(50);
5271+ /* set the count of our queues
5272+ ** NB: struct acx111_ie_memoryconfig shall be modified
5273+ ** if we ever will switch to more than one rx and/or tx queue */
5274+ memconf.count_rx_queues = 1;
5275+ memconf.count_tx_queues = 1;
5276+ /* 0 == Busmaster Indirect Memory Organization, which is what we want
5277+ * (using linked host descs with their allocated mem).
5278+ * 2 == Generic Bus Slave */
5279+ /* done by memset: memconf.options = 0; */
5280+ /* let's use 25% for fragmentations and 75% for frame transfers
5281+ * (specified in units of 5%) */
5282+ memconf.fragmentation = ACX111_PERCENT(75);
5283+ /* Rx descriptor queue config */
5284+ memconf.rx_queue1_count_descs = RX_CNT;
5285+ memconf.rx_queue1_type = 7; /* must be set to 7 */
5286+ /* done by memset: memconf.rx_queue1_prio = 0; low prio */
5287+#if defined (ACX_MEM)
5288+ memconf.rx_queue1_host_rx_start = cpu2acx(adev->rxhostdesc_startphy);
5289+#else
5290+ if (IS_PCI(adev)) {
5291+ memconf.rx_queue1_host_rx_start = cpu2acx(adev->rxhostdesc_startphy);
5292+ }
5293+#endif
5294+ /* Tx descriptor queue config */
5295+ memconf.tx_queue1_count_descs = TX_CNT;
5296+ /* done by memset: memconf.tx_queue1_attributes = 0; lowest priority */
5297+
5298+ /* NB1: this looks wrong: (memconf,ACX1xx_IE_QUEUE_CONFIG),
5299+ ** (queueconf,ACX1xx_IE_MEMORY_CONFIG_OPTIONS) look swapped, eh?
5300+ ** But it is actually correct wrt IE numbers.
5301+ ** NB2: sizeof(memconf) == 28 == 0x1c but configure(ACX1xx_IE_QUEUE_CONFIG)
5302+ ** writes 0x20 bytes (because same IE for acx100 uses struct acx100_ie_queueconfig
5303+ ** which is 4 bytes larger. what a mess. TODO: clean it up) */
5304+ if (OK != acx_s_configure(adev, &memconf, ACX1xx_IE_QUEUE_CONFIG)) {
5305+ goto fail;
5306+ }
5307+
5308+ acx_s_interrogate(adev, &queueconf, ACX1xx_IE_MEMORY_CONFIG_OPTIONS);
5309+
5310+ tx_queue_start = le32_to_cpu(queueconf.tx1_queue_address);
5311+ rx_queue_start = le32_to_cpu(queueconf.rx1_queue_address);
5312+
5313+ log(L_INIT, "dump queue head (from card):\n"
5314+ "len: %u\n"
5315+ "tx_memory_block_address: %X\n"
5316+ "rx_memory_block_address: %X\n"
5317+ "tx1_queue address: %X\n"
5318+ "rx1_queue address: %X\n",
5319+ le16_to_cpu(queueconf.len),
5320+ le32_to_cpu(queueconf.tx_memory_block_address),
5321+ le32_to_cpu(queueconf.rx_memory_block_address),
5322+ tx_queue_start,
5323+ rx_queue_start);
5324+
5325+#if defined (ACX_MEM)
5326+ acxmem_create_desc_queues(adev, tx_queue_start, rx_queue_start);
5327+#else
5328+ if (IS_PCI(adev))
5329+ acxpci_create_desc_queues(adev, tx_queue_start, rx_queue_start);
5330+#endif
5331+
5332+ FN_EXIT1(OK);
5333+ return OK;
5334+fail:
5335+#if defined (ACX_MEM)
5336+ acxmem_free_desc_queues(adev);
5337+#else
5338+ if (IS_PCI(adev))
5339+ acxpci_free_desc_queues(adev);
5340+#endif
5341+
5342+ FN_EXIT1(NOT_OK);
5343+ return NOT_OK;
5344+}
5345+
5346+
5347+/***********************************************************************
5348+*/
5349+static void
5350+acx_s_initialize_rx_config(acx_device_t *adev)
5351+{
5352+ struct {
5353+ u16 id;
5354+ u16 len;
5355+ u16 rx_cfg1;
5356+ u16 rx_cfg2;
5357+ } ACX_PACKED cfg;
5358+
5359+ switch (adev->mode) {
5360+ case ACX_MODE_OFF:
5361+ adev->rx_config_1 = (u16) (0
5362+ /* | RX_CFG1_INCLUDE_RXBUF_HDR */
5363+ /* | RX_CFG1_FILTER_SSID */
5364+ /* | RX_CFG1_FILTER_BCAST */
5365+ /* | RX_CFG1_RCV_MC_ADDR1 */
5366+ /* | RX_CFG1_RCV_MC_ADDR0 */
5367+ /* | RX_CFG1_FILTER_ALL_MULTI */
5368+ /* | RX_CFG1_FILTER_BSSID */
5369+ /* | RX_CFG1_FILTER_MAC */
5370+ /* | RX_CFG1_RCV_PROMISCUOUS */
5371+ /* | RX_CFG1_INCLUDE_FCS */
5372+ /* | RX_CFG1_INCLUDE_PHY_HDR */
5373+ );
5374+ adev->rx_config_2 = (u16) (0
5375+ /*| RX_CFG2_RCV_ASSOC_REQ */
5376+ /*| RX_CFG2_RCV_AUTH_FRAMES */
5377+ /*| RX_CFG2_RCV_BEACON_FRAMES */
5378+ /*| RX_CFG2_RCV_CONTENTION_FREE */
5379+ /*| RX_CFG2_RCV_CTRL_FRAMES */
5380+ /*| RX_CFG2_RCV_DATA_FRAMES */
5381+ /*| RX_CFG2_RCV_BROKEN_FRAMES */
5382+ /*| RX_CFG2_RCV_MGMT_FRAMES */
5383+ /*| RX_CFG2_RCV_PROBE_REQ */
5384+ /*| RX_CFG2_RCV_PROBE_RESP */
5385+ /*| RX_CFG2_RCV_ACK_FRAMES */
5386+ /*| RX_CFG2_RCV_OTHER */
5387+ );
5388+ break;
5389+ case ACX_MODE_MONITOR:
5390+ adev->rx_config_1 = (u16) (0
5391+ /* | RX_CFG1_INCLUDE_RXBUF_HDR */
5392+ /* | RX_CFG1_FILTER_SSID */
5393+ /* | RX_CFG1_FILTER_BCAST */
5394+ /* | RX_CFG1_RCV_MC_ADDR1 */
5395+ /* | RX_CFG1_RCV_MC_ADDR0 */
5396+ /* | RX_CFG1_FILTER_ALL_MULTI */
5397+ /* | RX_CFG1_FILTER_BSSID */
5398+ /* | RX_CFG1_FILTER_MAC */
5399+ | RX_CFG1_RCV_PROMISCUOUS
5400+ /* | RX_CFG1_INCLUDE_FCS */
5401+ /* | RX_CFG1_INCLUDE_PHY_HDR */
5402+ );
5403+ adev->rx_config_2 = (u16) (0
5404+ | RX_CFG2_RCV_ASSOC_REQ
5405+ | RX_CFG2_RCV_AUTH_FRAMES
5406+ | RX_CFG2_RCV_BEACON_FRAMES
5407+ | RX_CFG2_RCV_CONTENTION_FREE
5408+ | RX_CFG2_RCV_CTRL_FRAMES
5409+ | RX_CFG2_RCV_DATA_FRAMES
5410+ | RX_CFG2_RCV_BROKEN_FRAMES
5411+ | RX_CFG2_RCV_MGMT_FRAMES
5412+ | RX_CFG2_RCV_PROBE_REQ
5413+ | RX_CFG2_RCV_PROBE_RESP
5414+ | RX_CFG2_RCV_ACK_FRAMES
5415+ | RX_CFG2_RCV_OTHER
5416+ );
5417+ break;
5418+ default:
5419+ adev->rx_config_1 = (u16) (0
5420+ /* | RX_CFG1_INCLUDE_RXBUF_HDR */
5421+ /* | RX_CFG1_FILTER_SSID */
5422+ /* | RX_CFG1_FILTER_BCAST */
5423+ /* | RX_CFG1_RCV_MC_ADDR1 */
5424+ /* | RX_CFG1_RCV_MC_ADDR0 */
5425+ /* | RX_CFG1_FILTER_ALL_MULTI */
5426+ /* | RX_CFG1_FILTER_BSSID */
5427+ | RX_CFG1_FILTER_MAC
5428+ /* | RX_CFG1_RCV_PROMISCUOUS */
5429+ /* | RX_CFG1_INCLUDE_FCS */
5430+ /* | RX_CFG1_INCLUDE_PHY_HDR */
5431+ );
5432+ adev->rx_config_2 = (u16) (0
5433+ | RX_CFG2_RCV_ASSOC_REQ
5434+ | RX_CFG2_RCV_AUTH_FRAMES
5435+ | RX_CFG2_RCV_BEACON_FRAMES
5436+ | RX_CFG2_RCV_CONTENTION_FREE
5437+ | RX_CFG2_RCV_CTRL_FRAMES
5438+ | RX_CFG2_RCV_DATA_FRAMES
5439+ /*| RX_CFG2_RCV_BROKEN_FRAMES */
5440+ | RX_CFG2_RCV_MGMT_FRAMES
5441+ | RX_CFG2_RCV_PROBE_REQ
5442+ | RX_CFG2_RCV_PROBE_RESP
5443+ /*| RX_CFG2_RCV_ACK_FRAMES */
5444+ | RX_CFG2_RCV_OTHER
5445+ );
5446+ break;
5447+ }
5448+ adev->rx_config_1 |= RX_CFG1_INCLUDE_RXBUF_HDR;
5449+
5450+ if ((adev->rx_config_1 & RX_CFG1_INCLUDE_PHY_HDR)
5451+ || (adev->firmware_numver >= 0x02000000))
5452+ adev->phy_header_len = IS_ACX111(adev) ? 8 : 4;
5453+ else
5454+ adev->phy_header_len = 0;
5455+
5456+ log(L_INIT, "setting RXconfig to %04X:%04X\n",
5457+ adev->rx_config_1, adev->rx_config_2);
5458+ cfg.rx_cfg1 = cpu_to_le16(adev->rx_config_1);
5459+ cfg.rx_cfg2 = cpu_to_le16(adev->rx_config_2);
5460+ acx_s_configure(adev, &cfg, ACX1xx_IE_RXCONFIG);
5461+}
5462+
5463+
5464+/***********************************************************************
5465+** acx_s_set_defaults
5466+*/
5467+void
5468+acx_s_set_defaults(acx_device_t *adev)
5469+{
5470+ unsigned long flags;
5471+
5472+ FN_ENTER;
5473+
5474+ /* do it before getting settings, prevent bogus channel 0 warning */
5475+ adev->channel = 1;
5476+
5477+ /* query some settings from the card.
5478+ * NOTE: for some settings, e.g. CCA and ED (ACX100!), an initial
5479+ * query is REQUIRED, otherwise the card won't work correctly! */
5480+ adev->get_mask = GETSET_ANTENNA|GETSET_SENSITIVITY|GETSET_STATION_ID|GETSET_REG_DOMAIN;
5481+ /* Only ACX100 supports ED and CCA */
5482+ if (IS_ACX100(adev))
5483+ adev->get_mask |= GETSET_CCA|GETSET_ED_THRESH;
5484+
5485+ acx_s_update_card_settings(adev);
5486+
5487+ acx_lock(adev, flags);
5488+
5489+ /* set our global interrupt mask */
5490+#if defined (ACX_MEM)
5491+ acxmem_set_interrupt_mask(adev);
5492+#else
5493+ if (IS_PCI(adev))
5494+ acxpci_set_interrupt_mask(adev);
5495+#endif
5496+
5497+ adev->led_power = 1; /* LED is active on startup */
5498+ adev->brange_max_quality = 60; /* LED blink max quality is 60 */
5499+ adev->brange_time_last_state_change = jiffies;
5500+
5501+ /* copy the MAC address we just got from the card
5502+ * into our MAC address used during current 802.11 session */
5503+ MAC_COPY(adev->dev_addr, adev->ndev->dev_addr);
5504+ MAC_BCAST(adev->ap);
5505+
5506+ adev->essid_len =
5507+ snprintf(adev->essid, sizeof(adev->essid), "STA%02X%02X%02X",
5508+ adev->dev_addr[3], adev->dev_addr[4], adev->dev_addr[5]);
5509+ adev->essid_active = 1;
5510+
5511+ /* we have a nick field to waste, so why not abuse it
5512+ * to announce the driver version? ;-) */
5513+ strncpy(adev->nick, "acx " ACX_RELEASE, IW_ESSID_MAX_SIZE);
5514+
5515+#if defined (ACX_MEM)
5516+ adev->reg_dom_id = adev->cfgopt_domains.list[0];
5517+#else
5518+ if (IS_PCI(adev)) { /* FIXME: this should be made to apply to USB, too! */
5519+ /* first regulatory domain entry in EEPROM == default reg. domain */
5520+ adev->reg_dom_id = adev->cfgopt_domains.list[0];
5521+ }
5522+#endif
5523+
5524+ /* 0xffff would be better, but then we won't get a "scan complete"
5525+ * interrupt, so our current infrastructure will fail: */
5526+ adev->scan_count = 1;
5527+ adev->scan_mode = ACX_SCAN_OPT_ACTIVE;
5528+ adev->scan_duration = 100;
5529+ adev->scan_probe_delay = 200;
5530+ /* reported to break scanning: adev->scan_probe_delay = adev->cfgopt_probe_delay; */
5531+ adev->scan_rate = ACX_SCAN_RATE_1;
5532+
5533+ adev->mode = ACX_MODE_2_STA;
5534+ adev->auth_alg = WLAN_AUTH_ALG_OPENSYSTEM;
5535+ adev->listen_interval = 100;
5536+ adev->beacon_interval = DEFAULT_BEACON_INTERVAL;
5537+ adev->dtim_interval = DEFAULT_DTIM_INTERVAL;
5538+
5539+ adev->msdu_lifetime = DEFAULT_MSDU_LIFETIME;
5540+
5541+ adev->rts_threshold = DEFAULT_RTS_THRESHOLD;
5542+ adev->frag_threshold = 2346;
5543+
5544+ /* use standard default values for retry limits */
5545+ adev->short_retry = 7; /* max. retries for (short) non-RTS packets */
5546+ adev->long_retry = 4; /* max. retries for long (RTS) packets */
5547+
5548+ adev->preamble_mode = 2; /* auto */
5549+ adev->fallback_threshold = 3;
5550+ adev->stepup_threshold = 10;
5551+ adev->rate_bcast = RATE111_1;
5552+ adev->rate_bcast100 = RATE100_1;
5553+ adev->rate_basic = RATE111_1 | RATE111_2;
5554+ adev->rate_auto = 1;
5555+ if (IS_ACX111(adev)) {
5556+ adev->rate_oper = RATE111_ALL;
5557+ } else {
5558+ adev->rate_oper = RATE111_ACX100_COMPAT;
5559+ }
5560+
5561+ /* Supported Rates element - the rates here are given in units of
5562+ * 500 kbit/s, plus 0x80 added. See 802.11-1999.pdf item 7.3.2.2 */
5563+ acx_l_update_ratevector(adev);
5564+
5565+ /* set some more defaults */
5566+ if (IS_ACX111(adev)) {
5567+ /* 30mW (15dBm) is default, at least in my acx111 card: */
5568+ adev->tx_level_dbm = 15;
5569+ } else {
5570+ /* don't use max. level, since it might be dangerous
5571+ * (e.g. WRT54G people experience
5572+ * excessive Tx power damage!) */
5573+ adev->tx_level_dbm = 18;
5574+ /*
5575+ * Lower power for the iPaq hx4700
5576+ */
5577+ if (IS_MEM(adev)) {
5578+ adev->tx_level_dbm = 14;
5579+ }
5580+ }
5581+ /* adev->tx_level_auto = 1; */
5582+ if (IS_ACX111(adev)) {
5583+ /* start with sensitivity level 1 out of 3: */
5584+ adev->sensitivity = 1;
5585+ }
5586+
5587+/* #define ENABLE_POWER_SAVE */
5588+#ifdef ENABLE_POWER_SAVE
5589+ adev->ps_wakeup_cfg = PS_CFG_ENABLE | PS_CFG_WAKEUP_ALL_BEAC;
5590+ adev->ps_listen_interval = 1;
5591+ adev->ps_options = PS_OPT_ENA_ENHANCED_PS | PS_OPT_TX_PSPOLL | PS_OPT_STILL_RCV_BCASTS;
5592+ adev->ps_hangover_period = 30;
5593+ adev->ps_enhanced_transition_time = 0;
5594+#else
5595+ adev->ps_wakeup_cfg = 0;
5596+ adev->ps_listen_interval = 0;
5597+ adev->ps_options = 0;
5598+ adev->ps_hangover_period = 0;
5599+ adev->ps_enhanced_transition_time = 0;
5600+#endif
5601+
5602+ /* These settings will be set in fw on ifup */
5603+ adev->set_mask = 0
5604+ | GETSET_RETRY
5605+ | SET_MSDU_LIFETIME
5606+ /* configure card to do rate fallback when in auto rate mode */
5607+ | SET_RATE_FALLBACK
5608+ | SET_RXCONFIG
5609+ | GETSET_TXPOWER
5610+ /* better re-init the antenna value we got above */
5611+ | GETSET_ANTENNA
5612+#if POWER_SAVE_80211
5613+ | GETSET_POWER_80211
5614+#endif
5615+ ;
5616+
5617+ acx_unlock(adev, flags);
5618+ acx_lock_unhold(); /* hold time 844814 CPU ticks @2GHz */
5619+
5620+ acx_s_initialize_rx_config(adev);
5621+
5622+ FN_EXIT0;
5623+}
5624+
5625+
5626+/***********************************************************************
5627+** FIXME: this should be solved in a general way for all radio types
5628+** by decoding the radio firmware module,
5629+** since it probably has some standard structure describing how to
5630+** set the power level of the radio module which it controls.
5631+** Or maybe not, since the radio module probably has a function interface
5632+** instead which then manages Tx level programming :-\
5633+*/
5634+static int
5635+acx111_s_set_tx_level(acx_device_t *adev, u8 level_dbm)
5636+{
5637+ struct acx111_ie_tx_level tx_level;
5638+
5639+ /* my acx111 card has two power levels in its configoptions (== EEPROM):
5640+ * 1 (30mW) [15dBm]
5641+ * 2 (10mW) [10dBm]
5642+ * For now, just assume all other acx111 cards have the same.
5643+ * FIXME: Ideally we would query it here, but we first need a
5644+ * standard way to query individual configoptions easily.
5645+ * Well, now we have proper cfgopt txpower variables, but this still
5646+ * hasn't been done yet, since it also requires dBm <-> mW conversion here... */
5647+ if (level_dbm <= 12) {
5648+ tx_level.level = 2; /* 10 dBm */
5649+ adev->tx_level_dbm = 10;
5650+ } else {
5651+ tx_level.level = 1; /* 15 dBm */
5652+ adev->tx_level_dbm = 15;
5653+ }
5654+ if (level_dbm != adev->tx_level_dbm)
5655+ log(L_INIT, "acx111 firmware has specific "
5656+ "power levels only: adjusted %d dBm to %d dBm!\n",
5657+ level_dbm, adev->tx_level_dbm);
5658+
5659+ return acx_s_configure(adev, &tx_level, ACX1xx_IE_DOT11_TX_POWER_LEVEL);
5660+}
5661+
5662+static int
5663+acx_s_set_tx_level(acx_device_t *adev, u8 level_dbm)
5664+{
5665+ if (IS_ACX111(adev)) {
5666+ return acx111_s_set_tx_level(adev, level_dbm);
5667+ }
5668+#if defined (ACX_MEM)
5669+ return acx100mem_s_set_tx_level(adev, level_dbm);
5670+#else
5671+ if (IS_PCI(adev)) {
5672+ return acx100pci_s_set_tx_level(adev, level_dbm);
5673+ }
5674+#endif
5675+ return OK;
5676+}
5677+
5678+
5679+/***********************************************************************
5680+*/
5681+#ifdef UNUSED
5682+/* Returns the current tx level (ACX111) */
5683+static u8
5684+acx111_s_get_tx_level(acx_device_t *adev)
5685+{
5686+ struct acx111_ie_tx_level tx_level;
5687+
5688+ tx_level.level = 0;
5689+ acx_s_interrogate(adev, &tx_level, ACX1xx_IE_DOT11_TX_POWER_LEVEL);
5690+ return tx_level.level;
5691+}
5692+#endif
5693+
5694+
5695+/***********************************************************************
5696+** acx_l_rxmonitor
5697+** Called from IRQ context only
5698+*/
5699+static void
5700+acx_l_rxmonitor(acx_device_t *adev, const rxbuffer_t *rxbuf)
5701+{
5702+ wlansniffrm_t *msg;
5703+ struct sk_buff *skb;
5704+ void *datap;
5705+ unsigned int skb_len;
5706+ int payload_offset;
5707+
5708+ FN_ENTER;
5709+
5710+ /* we are in big luck: the acx100 doesn't modify any of the fields */
5711+ /* in the 802.11 frame. just pass this packet into the PF_PACKET */
5712+ /* subsystem. yeah. */
5713+ payload_offset = ((u8*)acx_get_wlan_hdr(adev, rxbuf) - (u8*)rxbuf);
5714+ skb_len = RXBUF_BYTES_USED(rxbuf) - payload_offset;
5715+
5716+ /* sanity check */
5717+ if (unlikely(skb_len > WLAN_A4FR_MAXLEN_WEP)) {
5718+ printk("%s: monitor mode panic: oversized frame!\n",
5719+ adev->ndev->name);
5720+ goto end;
5721+ }
5722+
5723+ if (adev->ndev->type == ARPHRD_IEEE80211_PRISM)
5724+ skb_len += sizeof(*msg);
5725+
5726+ /* allocate skb */
5727+ skb = dev_alloc_skb(skb_len);
5728+ if (unlikely(!skb)) {
5729+ printk("%s: no memory for skb (%u bytes)\n",
5730+ adev->ndev->name, skb_len);
5731+ goto end;
5732+ }
5733+
5734+ skb_put(skb, skb_len);
5735+
5736+ if (adev->ndev->type == ARPHRD_IEEE80211) {
5737+ /* when in raw 802.11 mode, just copy frame as-is */
5738+ datap = skb->data;
5739+ } else if (adev->ndev->type == ARPHRD_IEEE80211_PRISM) {
5740+ /* emulate prism header */
5741+ msg = (wlansniffrm_t*)skb->data;
5742+ datap = msg + 1;
5743+
5744+ msg->msgcode = WLANSNIFFFRM;
5745+ msg->msglen = sizeof(*msg);
5746+ strncpy(msg->devname, adev->ndev->name, sizeof(msg->devname)-1);
5747+ msg->devname[sizeof(msg->devname)-1] = '\0';
5748+
5749+ msg->hosttime.did = WLANSNIFFFRM_hosttime;
5750+ msg->hosttime.status = WLANITEM_STATUS_data_ok;
5751+ msg->hosttime.len = 4;
5752+ msg->hosttime.data = jiffies;
5753+
5754+ msg->mactime.did = WLANSNIFFFRM_mactime;
5755+ msg->mactime.status = WLANITEM_STATUS_data_ok;
5756+ msg->mactime.len = 4;
5757+ msg->mactime.data = rxbuf->time;
5758+
5759+ msg->channel.did = WLANSNIFFFRM_channel;
5760+ msg->channel.status = WLANITEM_STATUS_data_ok;
5761+ msg->channel.len = 4;
5762+ msg->channel.data = adev->channel;
5763+
5764+ msg->rssi.did = WLANSNIFFFRM_rssi;
5765+ msg->rssi.status = WLANITEM_STATUS_no_value;
5766+ msg->rssi.len = 4;
5767+ msg->rssi.data = 0;
5768+
5769+ msg->sq.did = WLANSNIFFFRM_sq;
5770+ msg->sq.status = WLANITEM_STATUS_no_value;
5771+ msg->sq.len = 4;
5772+ msg->sq.data = 0;
5773+
5774+ msg->signal.did = WLANSNIFFFRM_signal;
5775+ msg->signal.status = WLANITEM_STATUS_data_ok;
5776+ msg->signal.len = 4;
5777+ msg->signal.data = rxbuf->phy_snr;
5778+
5779+ msg->noise.did = WLANSNIFFFRM_noise;
5780+ msg->noise.status = WLANITEM_STATUS_data_ok;
5781+ msg->noise.len = 4;
5782+ msg->noise.data = rxbuf->phy_level;
5783+
5784+ msg->rate.did = WLANSNIFFFRM_rate;
5785+ msg->rate.status = WLANITEM_STATUS_data_ok;
5786+ msg->rate.len = 4;
5787+ msg->rate.data = rxbuf->phy_plcp_signal / 5;
5788+
5789+ msg->istx.did = WLANSNIFFFRM_istx;
5790+ msg->istx.status = WLANITEM_STATUS_data_ok;
5791+ msg->istx.len = 4;
5792+ msg->istx.data = 0; /* tx=0: it's not a tx packet */
5793+
5794+ skb_len -= sizeof(*msg);
5795+
5796+ msg->frmlen.did = WLANSNIFFFRM_signal;
5797+ msg->frmlen.status = WLANITEM_STATUS_data_ok;
5798+ msg->frmlen.len = 4;
5799+ msg->frmlen.data = skb_len;
5800+ } else {
5801+ printk("acx: unsupported netdev type %d!\n", adev->ndev->type);
5802+ dev_kfree_skb(skb);
5803+ return;
5804+ }
5805+
5806+ /* sanity check (keep it here) */
5807+ if (unlikely((int)skb_len < 0)) {
5808+ printk("acx: skb_len=%d. Driver bug, please report\n", (int)skb_len);
5809+ dev_kfree_skb(skb);
5810+ return;
5811+ }
5812+ memcpy(datap, ((unsigned char*)rxbuf)+payload_offset, skb_len);
5813+
5814+ skb->dev = adev->ndev;
5815+ skb->dev->last_rx = jiffies;
5816+
5817+ skb_reset_mac_header(skb);
5818+ skb->ip_summed = CHECKSUM_NONE;
5819+ skb->pkt_type = PACKET_OTHERHOST;
5820+ skb->protocol = htons(ETH_P_80211_RAW);
5821+ netif_rx(skb);
5822+
5823+ adev->stats.rx_packets++;
5824+ adev->stats.rx_bytes += skb->len;
5825+
5826+end:
5827+ FN_EXIT0;
5828+}
5829+
5830+
5831+/***********************************************************************
5832+** acx_l_rx_ieee802_11_frame
5833+**
5834+** Called from IRQ context only
5835+*/
5836+
5837+/* All these contortions are for saner dup logging
5838+**
5839+** We want: (a) to know about excessive dups
5840+** (b) to not spam kernel log about occasional dups
5841+**
5842+** 1/64 threshold was chosen by running "ping -A"
5843+** It gave "rx: 59 DUPs in 2878 packets" only with 4 parallel
5844+** "ping -A" streams running. */
5845+/* 2005-10-11: bumped up to 1/8
5846+** subtract a $smallint from dup_count in order to
5847+** avoid "2 DUPs in 19 packets" messages */
5848+static inline int
5849+acx_l_handle_dup(acx_device_t *adev, u16 seq)
5850+{
5851+ if (adev->dup_count) {
5852+ adev->nondup_count++;
5853+ if (time_after(jiffies, adev->dup_msg_expiry)) {
5854+ /* Log only if more than 1 dup in 64 packets */
5855+ if (adev->nondup_count/8 < adev->dup_count-5) {
5856+ printk(KERN_INFO "%s: rx: %d DUPs in "
5857+ "%d packets received in 10 secs\n",
5858+ adev->ndev->name,
5859+ adev->dup_count,
5860+ adev->nondup_count);
5861+ }
5862+ adev->dup_count = 0;
5863+ adev->nondup_count = 0;
5864+ }
5865+ }
5866+ if (unlikely(seq == adev->last_seq_ctrl)) {
5867+ if (!adev->dup_count++)
5868+ adev->dup_msg_expiry = jiffies + 10*HZ;
5869+ adev->stats.rx_errors++;
5870+ return 1; /* a dup */
5871+ }
5872+ adev->last_seq_ctrl = seq;
5873+ return 0;
5874+}
5875+
5876+static int
5877+acx_l_rx_ieee802_11_frame(acx_device_t *adev, rxbuffer_t *rxbuf)
5878+{
5879+ unsigned int ftype, fstype;
5880+ const wlan_hdr_t *hdr;
5881+ int result = NOT_OK;
5882+
5883+ FN_ENTER;
5884+
5885+ hdr = acx_get_wlan_hdr(adev, rxbuf);
5886+
5887+ /* see IEEE 802.11-1999.pdf chapter 7 "MAC frame formats" */
5888+ if (unlikely((hdr->fc & WF_FC_PVERi) != 0)) {
5889+ printk_ratelimited(KERN_INFO "rx: unsupported 802.11 protocol\n");
5890+ goto end;
5891+ }
5892+
5893+ ftype = hdr->fc & WF_FC_FTYPEi;
5894+ fstype = hdr->fc & WF_FC_FSTYPEi;
5895+
5896+ switch (ftype) {
5897+ /* check data frames first, for speed */
5898+ case WF_FTYPE_DATAi:
5899+ switch (fstype) {
5900+ case WF_FSTYPE_DATAONLYi:
5901+ if (acx_l_handle_dup(adev, hdr->seq))
5902+ break; /* a dup, simply discard it */
5903+
5904+ /* TODO:
5905+ if (WF_FC_FROMTODSi == (hdr->fc & WF_FC_FROMTODSi)) {
5906+ result = acx_l_process_data_frame_wds(adev, rxbuf);
5907+ break;
5908+ }
5909+ */
5910+
5911+ switch (adev->mode) {
5912+ case ACX_MODE_3_AP:
5913+ result = acx_l_process_data_frame_master(adev, rxbuf);
5914+ break;
5915+ case ACX_MODE_0_ADHOC:
5916+ case ACX_MODE_2_STA:
5917+ result = acx_l_process_data_frame_client(adev, rxbuf);
5918+ break;
5919+ }
5920+ case WF_FSTYPE_DATA_CFACKi:
5921+ case WF_FSTYPE_DATA_CFPOLLi:
5922+ case WF_FSTYPE_DATA_CFACK_CFPOLLi:
5923+ case WF_FSTYPE_CFPOLLi:
5924+ case WF_FSTYPE_CFACK_CFPOLLi:
5925+ /* see above.
5926+ acx_process_class_frame(adev, rxbuf, 3); */
5927+ break;
5928+ case WF_FSTYPE_NULLi:
5929+ /* acx_l_process_NULL_frame(adev, rxbuf, 3); */
5930+ break;
5931+ /* FIXME: same here, see above */
5932+ case WF_FSTYPE_CFACKi:
5933+ default:
5934+ break;
5935+ }
5936+ break;
5937+ case WF_FTYPE_MGMTi:
5938+ result = acx_l_process_mgmt_frame(adev, rxbuf);
5939+ break;
5940+ case WF_FTYPE_CTLi:
5941+ if (fstype == WF_FSTYPE_PSPOLLi)
5942+ result = OK;
5943+ /* this call is irrelevant, since
5944+ * acx_process_class_frame is a stub, so return
5945+ * immediately instead.
5946+ * return acx_process_class_frame(adev, rxbuf, 3); */
5947+ break;
5948+ default:
5949+ break;
5950+ }
5951+end:
5952+ FN_EXIT1(result);
5953+ return result;
5954+}
5955+
5956+
5957+/***********************************************************************
5958+** acx_l_process_rxbuf
5959+**
5960+** NB: used by USB code also
5961+*/
5962+void
5963+acx_l_process_rxbuf(acx_device_t *adev, rxbuffer_t *rxbuf)
5964+{
5965+ struct wlan_hdr *hdr;
5966+ unsigned int qual;
5967+ int buf_len;
5968+ u16 fc;
5969+
5970+ hdr = acx_get_wlan_hdr(adev, rxbuf);
5971+ fc = le16_to_cpu(hdr->fc);
5972+ /* length of frame from control field to first byte of FCS */
5973+ buf_len = RXBUF_BYTES_RCVD(adev, rxbuf);
5974+
5975+ if ( ((WF_FC_FSTYPE & fc) != WF_FSTYPE_BEACON)
5976+ || (acx_debug & L_XFER_BEACON)
5977+ ) {
5978+ log(L_XFER|L_DATA, "rx: %s "
5979+ "time:%u len:%u signal:%u SNR:%u macstat:%02X "
5980+ "phystat:%02X phyrate:%u status:%u\n",
5981+ acx_get_packet_type_string(fc),
5982+ le32_to_cpu(rxbuf->time),
5983+ buf_len,
5984+ acx_signal_to_winlevel(rxbuf->phy_level),
5985+ acx_signal_to_winlevel(rxbuf->phy_snr),
5986+ rxbuf->mac_status,
5987+ rxbuf->phy_stat_baseband,
5988+ rxbuf->phy_plcp_signal,
5989+ adev->status);
5990+ }
5991+
5992+ if (unlikely(acx_debug & L_DATA)) {
5993+ printk("rx: 802.11 buf[%u]: ", buf_len);
5994+ acx_dump_bytes(hdr, buf_len);
5995+ }
5996+
5997+ /* FIXME: should check for Rx errors (rxbuf->mac_status?
5998+ * discard broken packets - but NOT for monitor!)
5999+ * and update Rx packet statistics here */
6000+
6001+ if (unlikely(adev->mode == ACX_MODE_MONITOR)) {
6002+ acx_l_rxmonitor(adev, rxbuf);
6003+ } else if (likely(buf_len >= WLAN_HDR_A3_LEN)) {
6004+ acx_l_rx_ieee802_11_frame(adev, rxbuf);
6005+ } else {
6006+ log(L_DEBUG|L_XFER|L_DATA,
6007+ "rx: NOT receiving packet (%s): "
6008+ "size too small (%u)\n",
6009+ acx_get_packet_type_string(fc),
6010+ buf_len);
6011+ }
6012+
6013+ /* Now check Rx quality level, AFTER processing packet.
6014+ * I tried to figure out how to map these levels to dBm
6015+ * values, but for the life of me I really didn't
6016+ * manage to get it. Either these values are not meant to
6017+ * be expressed in dBm, or it's some pretty complicated
6018+ * calculation. */
6019+
6020+#ifdef FROM_SCAN_SOURCE_ONLY
6021+ /* only consider packets originating from the MAC
6022+ * address of the device that's managing our BSSID.
6023+ * Disable it for now, since it removes information (levels
6024+ * from different peers) and slows the Rx path. */
6025+ if (adev->ap_client
6026+ && mac_is_equal(hdr->a2, adev->ap_client->address)) {
6027+#endif
6028+ adev->wstats.qual.level = acx_signal_to_winlevel(rxbuf->phy_level);
6029+ adev->wstats.qual.noise = acx_signal_to_winlevel(rxbuf->phy_snr);
6030+#ifndef OLD_QUALITY
6031+ qual = acx_signal_determine_quality(adev->wstats.qual.level,
6032+ adev->wstats.qual.noise);
6033+#else
6034+ qual = (adev->wstats.qual.noise <= 100) ?
6035+ 100 - adev->wstats.qual.noise : 0;
6036+#endif
6037+ adev->wstats.qual.qual = qual;
6038+ adev->wstats.qual.updated = 7; /* all 3 indicators updated */
6039+#ifdef FROM_SCAN_SOURCE_ONLY
6040+ }
6041+#endif
6042+}
6043+
6044+
6045+/***********************************************************************
6046+** acx_l_handle_txrate_auto
6047+**
6048+** Theory of operation:
6049+** client->rate_cap is a bitmask of rates client is capable of.
6050+** client->rate_cfg is a bitmask of allowed (configured) rates.
6051+** It is set as a result of iwconfig rate N [auto]
6052+** or iwpriv set_rates "N,N,N N,N,N" commands.
6053+** It can be fixed (e.g. 0x0080 == 18Mbit only),
6054+** auto (0x00ff == 18Mbit or any lower value),
6055+** and code handles any bitmask (0x1081 == try 54Mbit,18Mbit,1Mbit _only_).
6056+**
6057+** client->rate_cur is a value for rate111 field in tx descriptor.
6058+** It is always set to txrate_cfg sans zero or more most significant
6059+** bits. This routine handles selection of new rate_cur value depending on
6060+** outcome of last tx event.
6061+**
6062+** client->rate_100 is a precalculated rate value for acx100
6063+** (we can do without it, but will need to calculate it on each tx).
6064+**
6065+** You cannot configure mixed usage of 5.5 and/or 11Mbit rate
6066+** with PBCC and CCK modulation. Either both at CCK or both at PBCC.
6067+** In theory you can implement it, but so far it is considered not worth doing.
6068+**
6069+** 22Mbit, of course, is PBCC always. */
6070+
6071+/* maps acx100 tx descr rate field to acx111 one */
6072+static u16
6073+rate100to111(u8 r)
6074+{
6075+ switch (r) {
6076+ case RATE100_1: return RATE111_1;
6077+ case RATE100_2: return RATE111_2;
6078+ case RATE100_5:
6079+ case (RATE100_5 | RATE100_PBCC511): return RATE111_5;
6080+ case RATE100_11:
6081+ case (RATE100_11 | RATE100_PBCC511): return RATE111_11;
6082+ case RATE100_22: return RATE111_22;
6083+ default:
6084+ printk("acx: unexpected acx100 txrate: %u! "
6085+ "Please report\n", r);
6086+ return RATE111_1;
6087+ }
6088+}
6089+
6090+
6091+void
6092+acx_l_handle_txrate_auto(acx_device_t *adev, struct client *txc,
6093+ u16 cur, u8 rate100, u16 rate111,
6094+ u8 error, int pkts_to_ignore)
6095+{
6096+ u16 sent_rate;
6097+ int slower_rate_was_used;
6098+
6099+ /* vda: hmm. current code will do this:
6100+ ** 1. send packets at 11 Mbit, stepup++
6101+ ** 2. will try to send at 22Mbit. hardware will see no ACK,
6102+ ** retries at 11Mbit, success. code notes that used rate
6103+ ** is lower. stepup = 0, fallback++
6104+ ** 3. repeat step 2 fallback_count times. Fall back to
6105+ ** 11Mbit. go to step 1.
6106+ ** If stepup_count is large (say, 16) and fallback_count
6107+ ** is small (3), this wouldn't be too bad wrt throughput */
6108+
6109+ if (unlikely(!cur)) {
6110+ printk("acx: BUG! ratemask is empty\n");
6111+ return; /* or else we may lock up the box */
6112+ }
6113+
6114+ /* do some preparations, i.e. calculate the one rate that was
6115+ * used to send this packet */
6116+ if (IS_ACX111(adev)) {
6117+ sent_rate = 1 << highest_bit(rate111 & RATE111_ALL);
6118+ } else {
6119+ sent_rate = rate100to111(rate100);
6120+ }
6121+ /* sent_rate has only one bit set now, corresponding to tx rate
6122+ * which was used by hardware to tx this particular packet */
6123+
6124+ /* now do the actual auto rate management */
6125+ log(L_XFER, "tx: %sclient=%p/"MACSTR" used=%04X cur=%04X cfg=%04X "
6126+ "__=%u/%u ^^=%u/%u\n",
6127+ (txc->ignore_count > 0) ? "[IGN] " : "",
6128+ txc, MAC(txc->address), sent_rate, cur, txc->rate_cfg,
6129+ txc->fallback_count, adev->fallback_threshold,
6130+ txc->stepup_count, adev->stepup_threshold
6131+ );
6132+
6133+ /* we need to ignore old packets already in the tx queue since
6134+ * they use older rate bytes configured before our last rate change,
6135+ * otherwise our mechanism will get confused by interpreting old data.
6136+ * Do it after logging above */
6137+ if (txc->ignore_count) {
6138+ txc->ignore_count--;
6139+ return;
6140+ }
6141+
6142+ /* true only if the only nonzero bit in sent_rate is
6143+ ** less significant than highest nonzero bit in cur */
6144+ slower_rate_was_used = ( cur > ((sent_rate<<1)-1) );
6145+
6146+ if (slower_rate_was_used || error) {
6147+ txc->stepup_count = 0;
6148+ if (++txc->fallback_count <= adev->fallback_threshold)
6149+ return;
6150+ txc->fallback_count = 0;
6151+
6152+ /* clear highest 1 bit in cur */
6153+ sent_rate = RATE111_54;
6154+ while (!(cur & sent_rate)) sent_rate >>= 1;
6155+ CLEAR_BIT(cur, sent_rate);
6156+ if (!cur) /* we can't disable all rates! */
6157+ cur = sent_rate;
6158+ log(L_XFER, "tx: falling back to ratemask %04X\n", cur);
6159+
6160+ } else { /* there was neither lower rate nor error */
6161+ txc->fallback_count = 0;
6162+ if (++txc->stepup_count <= adev->stepup_threshold)
6163+ return;
6164+ txc->stepup_count = 0;
6165+
6166+ /* Sanitize. Sort of not needed, but I dont trust hw that much...
6167+ ** what if it can report bogus tx rates sometimes? */
6168+ while (!(cur & sent_rate)) sent_rate >>= 1;
6169+
6170+ /* try to find a higher sent_rate that isn't yet in our
6171+ * current set, but is an allowed cfg */
6172+ while (1) {
6173+ sent_rate <<= 1;
6174+ if (sent_rate > txc->rate_cfg)
6175+ /* no higher rates allowed by config */
6176+ return;
6177+ if (!(cur & sent_rate) && (txc->rate_cfg & sent_rate))
6178+ /* found */
6179+ break;
6180+ /* not found, try higher one */
6181+ }
6182+ SET_BIT(cur, sent_rate);
6183+ log(L_XFER, "tx: stepping up to ratemask %04X\n", cur);
6184+ }
6185+
6186+ txc->rate_cur = cur;
6187+ txc->ignore_count = pkts_to_ignore;
6188+ /* calculate acx100 style rate byte if needed */
6189+ if (IS_ACX100(adev)) {
6190+ txc->rate_100 = acx_bitpos2rate100[highest_bit(cur)];
6191+ }
6192+}
6193+
6194+
6195+/***********************************************************************
6196+** acx_i_start_xmit
6197+**
6198+** Called by network core. Can be called outside of process context.
6199+*/
6200+int
6201+acx_i_start_xmit(struct sk_buff *skb, struct net_device *ndev)
6202+{
6203+ acx_device_t *adev = ndev2adev(ndev);
6204+ tx_t *tx;
6205+ void *txbuf;
6206+ unsigned long flags;
6207+ int txresult = NOT_OK;
6208+ int len;
6209+
6210+ FN_ENTER;
6211+
6212+ if (unlikely(!skb)) {
6213+ /* indicate success */
6214+ txresult = OK;
6215+ goto end_no_unlock;
6216+ }
6217+ if (unlikely(!adev)) {
6218+ goto end_no_unlock;
6219+ }
6220+
6221+ acx_lock(adev, flags);
6222+
6223+ if (unlikely(!(adev->dev_state_mask & ACX_STATE_IFACE_UP))) {
6224+ goto end;
6225+ }
6226+ if (unlikely(adev->mode == ACX_MODE_OFF)) {
6227+ goto end;
6228+ }
6229+ if (unlikely(acx_queue_stopped(ndev))) {
6230+ log(L_DEBUG, "%s: called when queue stopped\n", __func__);
6231+ goto end;
6232+ }
6233+ if (unlikely(ACX_STATUS_4_ASSOCIATED != adev->status)) {
6234+ log(L_XFER, "trying to xmit, but not associated yet: "
6235+ "aborting...\n");
6236+ /* silently drop the packet, since we're not connected yet */
6237+ txresult = OK;
6238+ /* ...but indicate an error nevertheless */
6239+ adev->stats.tx_errors++;
6240+ goto end;
6241+ }
6242+
6243+ tx = acx_l_alloc_tx(adev);
6244+ if (unlikely(!tx)) {
6245+#ifndef ACX_MEM
6246+ /*
6247+ * generic slave interface has to make do with the tiny amount, around
6248+ * 7k, of transmit buffer space on the ACX itself. It is likely this will
6249+ * frequently be full.
6250+ */
6251+ printk_ratelimited("%s: start_xmit: txdesc ring is full, "
6252+ "dropping tx\n", ndev->name);
6253+#endif
6254+ txresult = NOT_OK;
6255+ goto end;
6256+ }
6257+
6258+ txbuf = acx_l_get_txbuf(adev, tx);
6259+ if (unlikely(!txbuf)) {
6260+ /* Card was removed */
6261+ txresult = NOT_OK;
6262+ acx_l_dealloc_tx(adev, tx);
6263+ goto end;
6264+ }
6265+ len = acx_ether_to_txbuf(adev, txbuf, skb);
6266+ if (unlikely(len < 0)) {
6267+ /* Error in packet conversion */
6268+ txresult = NOT_OK;
6269+ acx_l_dealloc_tx(adev, tx);
6270+ goto end;
6271+ }
6272+ acx_l_tx_data(adev, tx, len);
6273+ ndev->trans_start = jiffies;
6274+
6275+ txresult = OK;
6276+ adev->stats.tx_packets++;
6277+ adev->stats.tx_bytes += skb->len;
6278+
6279+end:
6280+ acx_unlock(adev, flags);
6281+
6282+end_no_unlock:
6283+ if ((txresult == OK) && skb)
6284+ dev_kfree_skb_any(skb);
6285+
6286+ FN_EXIT1(txresult);
6287+ return txresult;
6288+}
6289+
6290+
6291+/***********************************************************************
6292+** acx_l_update_ratevector
6293+**
6294+** Updates adev->rate_supported[_len] according to rate_{basic,oper}
6295+*/
6296+const u8
6297+acx_bitpos2ratebyte[] = {
6298+ DOT11RATEBYTE_1,
6299+ DOT11RATEBYTE_2,
6300+ DOT11RATEBYTE_5_5,
6301+ DOT11RATEBYTE_6_G,
6302+ DOT11RATEBYTE_9_G,
6303+ DOT11RATEBYTE_11,
6304+ DOT11RATEBYTE_12_G,
6305+ DOT11RATEBYTE_18_G,
6306+ DOT11RATEBYTE_22,
6307+ DOT11RATEBYTE_24_G,
6308+ DOT11RATEBYTE_36_G,
6309+ DOT11RATEBYTE_48_G,
6310+ DOT11RATEBYTE_54_G,
6311+};
6312+
6313+void
6314+acx_l_update_ratevector(acx_device_t *adev)
6315+{
6316+ u16 bcfg = adev->rate_basic;
6317+ u16 ocfg = adev->rate_oper;
6318+ u8 *supp = adev->rate_supported;
6319+ const u8 *dot11 = acx_bitpos2ratebyte;
6320+
6321+ FN_ENTER;
6322+
6323+ while (ocfg) {
6324+ if (ocfg & 1) {
6325+ *supp = *dot11;
6326+ if (bcfg & 1) {
6327+ *supp |= 0x80;
6328+ }
6329+ supp++;
6330+ }
6331+ dot11++;
6332+ ocfg >>= 1;
6333+ bcfg >>= 1;
6334+ }
6335+ adev->rate_supported_len = supp - adev->rate_supported;
6336+ if (acx_debug & L_ASSOC) {
6337+ printk("new ratevector: ");
6338+ acx_dump_bytes(adev->rate_supported, adev->rate_supported_len);
6339+ }
6340+ FN_EXIT0;
6341+}
6342+
6343+
6344+/***********************************************************************
6345+** acx_l_sta_list_init
6346+*/
6347+static void
6348+acx_l_sta_list_init(acx_device_t *adev)
6349+{
6350+ FN_ENTER;
6351+ memset(adev->sta_hash_tab, 0, sizeof(adev->sta_hash_tab));
6352+ memset(adev->sta_list, 0, sizeof(adev->sta_list));
6353+ FN_EXIT0;
6354+}
6355+
6356+
6357+/***********************************************************************
6358+** acx_l_sta_list_get_from_hash
6359+*/
6360+static inline client_t*
6361+acx_l_sta_list_get_from_hash(acx_device_t *adev, const u8 *address)
6362+{
6363+ return adev->sta_hash_tab[address[5] % VEC_SIZE(adev->sta_hash_tab)];
6364+}
6365+
6366+
6367+/***********************************************************************
6368+** acx_l_sta_list_get
6369+*/
6370+client_t*
6371+acx_l_sta_list_get(acx_device_t *adev, const u8 *address)
6372+{
6373+ client_t *client;
6374+ FN_ENTER;
6375+ client = acx_l_sta_list_get_from_hash(adev, address);
6376+ while (client) {
6377+ if (mac_is_equal(address, client->address)) {
6378+ client->mtime = jiffies;
6379+ break;
6380+ }
6381+ client = client->next;
6382+ }
6383+ FN_EXIT0;
6384+ return client;
6385+}
6386+
6387+
6388+/***********************************************************************
6389+** acx_l_sta_list_del
6390+*/
6391+void
6392+acx_l_sta_list_del(acx_device_t *adev, client_t *victim)
6393+{
6394+ client_t *client, *next;
6395+
6396+ client = acx_l_sta_list_get_from_hash(adev, victim->address);
6397+ next = client;
6398+ /* tricky. next = client on first iteration only,
6399+ ** on all other iters next = client->next */
6400+ while (next) {
6401+ if (next == victim) {
6402+ client->next = victim->next;
6403+ /* Overkill */
6404+ memset(victim, 0, sizeof(*victim));
6405+ break;
6406+ }
6407+ client = next;
6408+ next = client->next;
6409+ }
6410+}
6411+
6412+
6413+/***********************************************************************
6414+** acx_l_sta_list_alloc
6415+**
6416+** Never fails - will evict oldest client if needed
6417+*/
6418+static client_t*
6419+acx_l_sta_list_alloc(acx_device_t *adev)
6420+{
6421+ int i;
6422+ unsigned long age, oldest_age;
6423+ client_t *client, *oldest;
6424+
6425+ FN_ENTER;
6426+
6427+ oldest = &adev->sta_list[0];
6428+ oldest_age = 0;
6429+ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) {
6430+ client = &adev->sta_list[i];
6431+
6432+ if (!client->used) {
6433+ goto found;
6434+ } else {
6435+ age = jiffies - client->mtime;
6436+ if (oldest_age < age) {
6437+ oldest_age = age;
6438+ oldest = client;
6439+ }
6440+ }
6441+ }
6442+ acx_l_sta_list_del(adev, oldest);
6443+ client = oldest;
6444+found:
6445+ memset(client, 0, sizeof(*client));
6446+ FN_EXIT0;
6447+ return client;
6448+}
6449+
6450+
6451+/***********************************************************************
6452+** acx_l_sta_list_add
6453+**
6454+** Never fails - will evict oldest client if needed
6455+*/
6456+/* In case we will reimplement it differently... */
6457+#define STA_LIST_ADD_CAN_FAIL 0
6458+
6459+static client_t*
6460+acx_l_sta_list_add(acx_device_t *adev, const u8 *address)
6461+{
6462+ client_t *client;
6463+ int index;
6464+
6465+ FN_ENTER;
6466+
6467+ client = acx_l_sta_list_alloc(adev);
6468+
6469+ client->mtime = jiffies;
6470+ MAC_COPY(client->address, address);
6471+ client->used = CLIENT_EXIST_1;
6472+ client->auth_alg = WLAN_AUTH_ALG_SHAREDKEY;
6473+ client->auth_step = 1;
6474+ /* give some tentative peer rate values
6475+ ** (needed because peer may do auth without probing us first,
6476+ ** thus we'll have no idea of peer's ratevector yet).
6477+ ** Will be overwritten by scanning or assoc code */
6478+ client->rate_cap = adev->rate_basic;
6479+ client->rate_cfg = adev->rate_basic;
6480+ client->rate_cur = 1 << lowest_bit(adev->rate_basic);
6481+
6482+ index = address[5] % VEC_SIZE(adev->sta_hash_tab);
6483+ client->next = adev->sta_hash_tab[index];
6484+ adev->sta_hash_tab[index] = client;
6485+
6486+ acxlog_mac(L_ASSOC, "sta_list_add: sta=", address, "\n");
6487+
6488+ FN_EXIT0;
6489+ return client;
6490+}
6491+
6492+
6493+/***********************************************************************
6494+** acx_l_sta_list_get_or_add
6495+**
6496+** Never fails - will evict oldest client if needed
6497+*/
6498+static client_t*
6499+acx_l_sta_list_get_or_add(acx_device_t *adev, const u8 *address)
6500+{
6501+ client_t *client = acx_l_sta_list_get(adev, address);
6502+ if (!client)
6503+ client = acx_l_sta_list_add(adev, address);
6504+ return client;
6505+}
6506+
6507+
6508+/***********************************************************************
6509+** acx_set_status
6510+**
6511+** This function is called in many atomic regions, must not sleep
6512+**
6513+** This function does not need locking UNLESS you call it
6514+** as acx_set_status(ACX_STATUS_4_ASSOCIATED), bacause this can
6515+** wake queue. This can race with stop_queue elsewhere.
6516+** See acx_stop_queue comment. */
6517+void
6518+acx_set_status(acx_device_t *adev, u16 new_status)
6519+{
6520+#define QUEUE_OPEN_AFTER_ASSOC 1 /* this really seems to be needed now */
6521+ u16 old_status = adev->status;
6522+
6523+ FN_ENTER;
6524+
6525+ log(L_ASSOC, "%s(%d):%s\n",
6526+ __func__, new_status, acx_get_status_name(new_status));
6527+
6528+ /* wireless_send_event never sleeps */
6529+ if (ACX_STATUS_4_ASSOCIATED == new_status) {
6530+ union iwreq_data wrqu;
6531+
6532+ wrqu.data.length = 0;
6533+ wrqu.data.flags = 0;
6534+ wireless_send_event(adev->ndev, SIOCGIWSCAN, &wrqu, NULL);
6535+
6536+ wrqu.data.length = 0;
6537+ wrqu.data.flags = 0;
6538+ MAC_COPY(wrqu.ap_addr.sa_data, adev->bssid);
6539+ wrqu.ap_addr.sa_family = ARPHRD_ETHER;
6540+ wireless_send_event(adev->ndev, SIOCGIWAP, &wrqu, NULL);
6541+ } else {
6542+ union iwreq_data wrqu;
6543+
6544+ /* send event with empty BSSID to indicate we're not associated */
6545+ MAC_ZERO(wrqu.ap_addr.sa_data);
6546+ wrqu.ap_addr.sa_family = ARPHRD_ETHER;
6547+ wireless_send_event(adev->ndev, SIOCGIWAP, &wrqu, NULL);
6548+ }
6549+
6550+ adev->status = new_status;
6551+
6552+ switch (new_status) {
6553+ case ACX_STATUS_1_SCANNING:
6554+ adev->scan_retries = 0;
6555+ /* 1.0 s initial scan time */
6556+ acx_set_timer(adev, 1000000);
6557+ break;
6558+ case ACX_STATUS_2_WAIT_AUTH:
6559+ case ACX_STATUS_3_AUTHENTICATED:
6560+ adev->auth_or_assoc_retries = 0;
6561+ acx_set_timer(adev, 1500000); /* 1.5 s */
6562+ break;
6563+ }
6564+
6565+#if QUEUE_OPEN_AFTER_ASSOC
6566+ if (new_status == ACX_STATUS_4_ASSOCIATED) {
6567+ if (old_status < ACX_STATUS_4_ASSOCIATED) {
6568+ /* ah, we're newly associated now,
6569+ * so let's indicate carrier */
6570+ acx_carrier_on(adev->ndev, "after association");
6571+ acx_wake_queue(adev->ndev, "after association");
6572+ }
6573+ } else {
6574+ /* not associated any more, so let's kill carrier */
6575+ if (old_status >= ACX_STATUS_4_ASSOCIATED) {
6576+ acx_carrier_off(adev->ndev, "after losing association");
6577+ acx_stop_queue(adev->ndev, "after losing association");
6578+ }
6579+ }
6580+#endif
6581+ FN_EXIT0;
6582+}
6583+
6584+
6585+/***********************************************************************
6586+** acx_i_timer
6587+**
6588+** Fires up periodically. Used to kick scan/auth/assoc if something goes wrong
6589+*/
6590+void
6591+acx_i_timer(unsigned long address)
6592+{
6593+ unsigned long flags;
6594+ acx_device_t *adev = (acx_device_t*)address;
6595+
6596+ FN_ENTER;
6597+
6598+ acx_lock(adev, flags);
6599+
6600+ log(L_DEBUG|L_ASSOC, "%s: adev->status=%d (%s)\n",
6601+ __func__, adev->status, acx_get_status_name(adev->status));
6602+
6603+ switch (adev->status) {
6604+ case ACX_STATUS_1_SCANNING:
6605+ /* was set to 0 by set_status() */
6606+ if (++adev->scan_retries < 7) {
6607+ acx_set_timer(adev, 1000000);
6608+ /* used to interrogate for scan status.
6609+ ** We rely on SCAN_COMPLETE IRQ instead */
6610+ log(L_ASSOC, "continuing scan (%d sec)\n",
6611+ adev->scan_retries);
6612+ } else {
6613+ log(L_ASSOC, "stopping scan\n");
6614+ /* send stop_scan cmd when we leave the interrupt context,
6615+ * and make a decision what to do next (COMPLETE_SCAN) */
6616+ acx_schedule_task(adev,
6617+ ACX_AFTER_IRQ_CMD_STOP_SCAN + ACX_AFTER_IRQ_COMPLETE_SCAN);
6618+ }
6619+ break;
6620+ case ACX_STATUS_2_WAIT_AUTH:
6621+ /* was set to 0 by set_status() */
6622+ if (++adev->auth_or_assoc_retries < 10) {
6623+ log(L_ASSOC, "resend authen1 request (attempt %d)\n",
6624+ adev->auth_or_assoc_retries + 1);
6625+ acx_l_transmit_authen1(adev);
6626+ } else {
6627+ /* time exceeded: fall back to scanning mode */
6628+ log(L_ASSOC,
6629+ "authen1 request reply timeout, giving up\n");
6630+ /* we are a STA, need to find AP anyhow */
6631+ acx_set_status(adev, ACX_STATUS_1_SCANNING);
6632+ acx_schedule_task(adev, ACX_AFTER_IRQ_RESTART_SCAN);
6633+ }
6634+ /* used to be 1500000, but some other driver uses 2.5s */
6635+ acx_set_timer(adev, 2500000);
6636+ break;
6637+ case ACX_STATUS_3_AUTHENTICATED:
6638+ /* was set to 0 by set_status() */
6639+ if (++adev->auth_or_assoc_retries < 10) {
6640+ log(L_ASSOC, "resend assoc request (attempt %d)\n",
6641+ adev->auth_or_assoc_retries + 1);
6642+ acx_l_transmit_assoc_req(adev);
6643+ } else {
6644+ /* time exceeded: give up */
6645+ log(L_ASSOC,
6646+ "association request reply timeout, giving up\n");
6647+ /* we are a STA, need to find AP anyhow */
6648+ acx_set_status(adev, ACX_STATUS_1_SCANNING);
6649+ acx_schedule_task(adev, ACX_AFTER_IRQ_RESTART_SCAN);
6650+ }
6651+ acx_set_timer(adev, 2500000); /* see above */
6652+ break;
6653+ case ACX_STATUS_4_ASSOCIATED:
6654+ default:
6655+ break;
6656+ }
6657+
6658+ acx_unlock(adev, flags);
6659+
6660+ FN_EXIT0;
6661+}
6662+
6663+
6664+/***********************************************************************
6665+** acx_set_timer
6666+**
6667+** Sets the 802.11 state management timer's timeout.
6668+*/
6669+void
6670+acx_set_timer(acx_device_t *adev, int timeout_us)
6671+{
6672+ FN_ENTER;
6673+
6674+ log(L_DEBUG|L_IRQ, "%s(%u ms)\n", __func__, timeout_us/1000);
6675+ if (!(adev->dev_state_mask & ACX_STATE_IFACE_UP)) {
6676+ printk("attempt to set the timer "
6677+ "when the card interface is not up!\n");
6678+ goto end;
6679+ }
6680+
6681+ /* first check if the timer was already initialized, THEN modify it */
6682+ if (adev->mgmt_timer.function) {
6683+ mod_timer(&adev->mgmt_timer,
6684+ jiffies + (timeout_us * HZ / 1000000));
6685+ }
6686+end:
6687+ FN_EXIT0;
6688+}
6689+
6690+
6691+/***********************************************************************
6692+** acx_l_transmit_assocresp
6693+**
6694+** We are an AP here
6695+*/
6696+static const u8
6697+dot11ratebyte[] = {
6698+ DOT11RATEBYTE_1,
6699+ DOT11RATEBYTE_2,
6700+ DOT11RATEBYTE_5_5,
6701+ DOT11RATEBYTE_6_G,
6702+ DOT11RATEBYTE_9_G,
6703+ DOT11RATEBYTE_11,
6704+ DOT11RATEBYTE_12_G,
6705+ DOT11RATEBYTE_18_G,
6706+ DOT11RATEBYTE_22,
6707+ DOT11RATEBYTE_24_G,
6708+ DOT11RATEBYTE_36_G,
6709+ DOT11RATEBYTE_48_G,
6710+ DOT11RATEBYTE_54_G,
6711+};
6712+
6713+static inline int
6714+find_pos(const u8 *p, int size, u8 v)
6715+{
6716+ int i;
6717+ for (i = 0; i < size; i++)
6718+ if (p[i] == v)
6719+ return i;
6720+ /* printk a message about strange byte? */
6721+ return 0;
6722+}
6723+
6724+static void
6725+add_bits_to_ratemasks(u8* ratevec, int len, u16* brate, u16* orate)
6726+{
6727+ while (len--) {
6728+ int n = 1 << find_pos(dot11ratebyte,
6729+ sizeof(dot11ratebyte), *ratevec & 0x7f);
6730+ if (*ratevec & 0x80)
6731+ *brate |= n;
6732+ *orate |= n;
6733+ ratevec++;
6734+ }
6735+}
6736+
6737+static int
6738+acx_l_transmit_assocresp(acx_device_t *adev, const wlan_fr_assocreq_t *req)
6739+{
6740+ struct tx *tx;
6741+ struct wlan_hdr_mgmt *head;
6742+ struct assocresp_frame_body *body;
6743+ u8 *p;
6744+ const u8 *da;
6745+ /* const u8 *sa; */
6746+ const u8 *bssid;
6747+ client_t *clt;
6748+
6749+ FN_ENTER;
6750+
6751+ /* sa = req->hdr->a1; */
6752+ da = req->hdr->a2;
6753+ bssid = req->hdr->a3;
6754+
6755+ clt = acx_l_sta_list_get(adev, da);
6756+ if (!clt)
6757+ goto ok;
6758+
6759+ /* Assoc without auth is a big no-no */
6760+ /* Let's be liberal: if already assoc'ed STA sends assoc req again,
6761+ ** we won't be rude */
6762+ if (clt->used != CLIENT_AUTHENTICATED_2
6763+ && clt->used != CLIENT_ASSOCIATED_3) {
6764+ acx_l_transmit_deauthen(adev, da, WLAN_MGMT_REASON_CLASS2_NONAUTH);
6765+ goto bad;
6766+ }
6767+
6768+ clt->used = CLIENT_ASSOCIATED_3;
6769+
6770+ if (clt->aid == 0)
6771+ clt->aid = ++adev->aid;
6772+ clt->cap_info = ieee2host16(*(req->cap_info));
6773+
6774+ /* We cheat here a bit. We don't really care which rates are flagged
6775+ ** as basic by the client, so we stuff them in single ratemask */
6776+ clt->rate_cap = 0;
6777+ if (req->supp_rates)
6778+ add_bits_to_ratemasks(req->supp_rates->rates,
6779+ req->supp_rates->len, &clt->rate_cap, &clt->rate_cap);
6780+ if (req->ext_rates)
6781+ add_bits_to_ratemasks(req->ext_rates->rates,
6782+ req->ext_rates->len, &clt->rate_cap, &clt->rate_cap);
6783+ /* We can check that client supports all basic rates,
6784+ ** and deny assoc if not. But let's be liberal, right? ;) */
6785+ clt->rate_cfg = clt->rate_cap & adev->rate_oper;
6786+ if (!clt->rate_cfg) clt->rate_cfg = 1 << lowest_bit(adev->rate_oper);
6787+ clt->rate_cur = 1 << lowest_bit(clt->rate_cfg);
6788+ if (IS_ACX100(adev))
6789+ clt->rate_100 = acx_bitpos2rate100[lowest_bit(clt->rate_cfg)];
6790+ clt->fallback_count = clt->stepup_count = 0;
6791+ clt->ignore_count = 16;
6792+
6793+ tx = acx_l_alloc_tx(adev);
6794+ if (!tx)
6795+ goto bad;
6796+ head = acx_l_get_txbuf(adev, tx);
6797+ if (!head) {
6798+ acx_l_dealloc_tx(adev, tx);
6799+ goto bad;
6800+ }
6801+ body = (void*)(head + 1);
6802+
6803+ head->fc = WF_FSTYPE_ASSOCRESPi;
6804+ head->dur = req->hdr->dur;
6805+ MAC_COPY(head->da, da);
6806+ MAC_COPY(head->sa, adev->dev_addr);
6807+ MAC_COPY(head->bssid, bssid);
6808+ head->seq = req->hdr->seq;
6809+
6810+ body->cap_info = host2ieee16(adev->capabilities);
6811+ body->status = host2ieee16(0);
6812+ body->aid = host2ieee16(clt->aid);
6813+ p = wlan_fill_ie_rates((u8*)&body->rates, adev->rate_supported_len,
6814+ adev->rate_supported);
6815+ p = wlan_fill_ie_rates_ext(p, adev->rate_supported_len,
6816+ adev->rate_supported);
6817+
6818+ acx_l_tx_data(adev, tx, p - (u8*)head);
6819+ok:
6820+ FN_EXIT1(OK);
6821+ return OK;
6822+bad:
6823+ FN_EXIT1(NOT_OK);
6824+ return NOT_OK;
6825+}
6826+
6827+
6828+/***********************************************************************
6829+* acx_l_transmit_reassocresp
6830+
6831+You may be wondering, just like me, what the hell ReAuth is.
6832+In practice it was seen sent by STA when STA feels like losing connection.
6833+
6834+[802.11]
6835+
6836+5.4.2.3 Reassociation
6837+
6838+Association is sufficient for no-transition message delivery between
6839+IEEE 802.11 stations. Additional functionality is needed to support
6840+BSS-transition mobility. The additional required functionality
6841+is provided by the reassociation service. Reassociation is a DSS.
6842+The reassociation service is invoked to 'move' a current association
6843+from one AP to another. This keeps the DS informed of the current
6844+mapping between AP and STA as the station moves from BSS to BSS within
6845+an ESS. Reassociation also enables changing association attributes
6846+of an established association while the STA remains associated with
6847+the same AP. Reassociation is always initiated by the mobile STA.
6848+
6849+5.4.3.1 Authentication
6850+...
6851+A STA may be authenticated with many other STAs at any given instant.
6852+
6853+5.4.3.1.1 Preauthentication
6854+
6855+Because the authentication process could be time-consuming (depending
6856+on the authentication protocol in use), the authentication service can
6857+be invoked independently of the association service. Preauthentication
6858+is typically done by a STA while it is already associated with an AP
6859+(with which it previously authenticated). IEEE 802.11 does not require
6860+that STAs preauthenticate with APs. However, authentication is required
6861+before an association can be established. If the authentication is left
6862+until reassociation time, this may impact the speed with which a STA can
6863+reassociate between APs, limiting BSS-transition mobility performance.
6864+The use of preauthentication takes the authentication service overhead
6865+out of the time-critical reassociation process.
6866+
6867+5.7.3 Reassociation
6868+
6869+For a STA to reassociate, the reassociation service causes the following
6870+message to occur:
6871+
6872+ Reassociation request
6873+
6874+* Message type: Management
6875+* Message subtype: Reassociation request
6876+* Information items:
6877+ - IEEE address of the STA
6878+ - IEEE address of the AP with which the STA will reassociate
6879+ - IEEE address of the AP with which the STA is currently associated
6880+ - ESSID
6881+* Direction of message: From STA to 'new' AP
6882+
6883+The address of the current AP is included for efficiency. The inclusion
6884+of the current AP address facilitates MAC reassociation to be independent
6885+of the DS implementation.
6886+
6887+ Reassociation response
6888+* Message type: Management
6889+* Message subtype: Reassociation response
6890+* Information items:
6891+ - Result of the requested reassociation. (success/failure)
6892+ - If the reassociation is successful, the response shall include the AID.
6893+* Direction of message: From AP to STA
6894+
6895+7.2.3.6 Reassociation Request frame format
6896+
6897+The frame body of a management frame of subtype Reassociation Request
6898+contains the information shown in Table 9.
6899+
6900+Table 9 Reassociation Request frame body
6901+Order Information
6902+1 Capability information
6903+2 Listen interval
6904+3 Current AP address
6905+4 SSID
6906+5 Supported rates
6907+
6908+7.2.3.7 Reassociation Response frame format
6909+
6910+The frame body of a management frame of subtype Reassociation Response
6911+contains the information shown in Table 10.
6912+
6913+Table 10 Reassociation Response frame body
6914+Order Information
6915+1 Capability information
6916+2 Status code
6917+3 Association ID (AID)
6918+4 Supported rates
6919+
6920+*/
6921+static int
6922+acx_l_transmit_reassocresp(acx_device_t *adev, const wlan_fr_reassocreq_t *req)
6923+{
6924+ struct tx *tx;
6925+ struct wlan_hdr_mgmt *head;
6926+ struct reassocresp_frame_body *body;
6927+ u8 *p;
6928+ const u8 *da;
6929+ /* const u8 *sa; */
6930+ const u8 *bssid;
6931+ client_t *clt;
6932+
6933+ FN_ENTER;
6934+
6935+ /* sa = req->hdr->a1; */
6936+ da = req->hdr->a2;
6937+ bssid = req->hdr->a3;
6938+
6939+ /* Must be already authenticated, so it must be in the list */
6940+ clt = acx_l_sta_list_get(adev, da);
6941+ if (!clt)
6942+ goto ok;
6943+
6944+ /* Assoc without auth is a big no-no */
6945+ /* Already assoc'ed STAs sending ReAssoc req are ok per 802.11 */
6946+ if (clt->used != CLIENT_AUTHENTICATED_2
6947+ && clt->used != CLIENT_ASSOCIATED_3) {
6948+ acx_l_transmit_deauthen(adev, da, WLAN_MGMT_REASON_CLASS2_NONAUTH);
6949+ goto bad;
6950+ }
6951+
6952+ clt->used = CLIENT_ASSOCIATED_3;
6953+ if (clt->aid == 0) {
6954+ clt->aid = ++adev->aid;
6955+ }
6956+ if (req->cap_info)
6957+ clt->cap_info = ieee2host16(*(req->cap_info));
6958+
6959+ /* We cheat here a bit. We don't really care which rates are flagged
6960+ ** as basic by the client, so we stuff them in single ratemask */
6961+ clt->rate_cap = 0;
6962+ if (req->supp_rates)
6963+ add_bits_to_ratemasks(req->supp_rates->rates,
6964+ req->supp_rates->len, &clt->rate_cap, &clt->rate_cap);
6965+ if (req->ext_rates)
6966+ add_bits_to_ratemasks(req->ext_rates->rates,
6967+ req->ext_rates->len, &clt->rate_cap, &clt->rate_cap);
6968+ /* We can check that client supports all basic rates,
6969+ ** and deny assoc if not. But let's be liberal, right? ;) */
6970+ clt->rate_cfg = clt->rate_cap & adev->rate_oper;
6971+ if (!clt->rate_cfg) clt->rate_cfg = 1 << lowest_bit(adev->rate_oper);
6972+ clt->rate_cur = 1 << lowest_bit(clt->rate_cfg);
6973+ if (IS_ACX100(adev))
6974+ clt->rate_100 = acx_bitpos2rate100[lowest_bit(clt->rate_cfg)];
6975+
6976+ clt->fallback_count = clt->stepup_count = 0;
6977+ clt->ignore_count = 16;
6978+
6979+ tx = acx_l_alloc_tx(adev);
6980+ if (!tx)
6981+ goto ok;
6982+ head = acx_l_get_txbuf(adev, tx);
6983+ if (!head) {
6984+ acx_l_dealloc_tx(adev, tx);
6985+ goto ok;
6986+ }
6987+ body = (void*)(head + 1);
6988+
6989+ head->fc = WF_FSTYPE_REASSOCRESPi;
6990+ head->dur = req->hdr->dur;
6991+ MAC_COPY(head->da, da);
6992+ MAC_COPY(head->sa, adev->dev_addr);
6993+ MAC_COPY(head->bssid, bssid);
6994+ head->seq = req->hdr->seq;
6995+
6996+ /* IEs: 1. caps */
6997+ body->cap_info = host2ieee16(adev->capabilities);
6998+ /* 2. status code */
6999+ body->status = host2ieee16(0);
7000+ /* 3. AID */
7001+ body->aid = host2ieee16(clt->aid);
7002+ /* 4. supp rates */
7003+ p = wlan_fill_ie_rates((u8*)&body->rates, adev->rate_supported_len,
7004+ adev->rate_supported);
7005+ /* 5. ext supp rates */
7006+ p = wlan_fill_ie_rates_ext(p, adev->rate_supported_len,
7007+ adev->rate_supported);
7008+
7009+ acx_l_tx_data(adev, tx, p - (u8*)head);
7010+ok:
7011+ FN_EXIT1(OK);
7012+ return OK;
7013+bad:
7014+ FN_EXIT1(NOT_OK);
7015+ return NOT_OK;
7016+}
7017+
7018+
7019+/***********************************************************************
7020+** acx_l_process_disassoc_from_sta
7021+*/
7022+static void
7023+acx_l_process_disassoc_from_sta(acx_device_t *adev, const wlan_fr_disassoc_t *req)
7024+{
7025+ const u8 *ta;
7026+ client_t *clt;
7027+
7028+ FN_ENTER;
7029+
7030+ ta = req->hdr->a2;
7031+ clt = acx_l_sta_list_get(adev, ta);
7032+ if (!clt)
7033+ goto end;
7034+
7035+ if (clt->used != CLIENT_ASSOCIATED_3
7036+ && clt->used != CLIENT_AUTHENTICATED_2) {
7037+ /* it's disassociating, but it's
7038+ ** not even authenticated! Let it know that */
7039+ acxlog_mac(L_ASSOC|L_XFER, "peer ", ta, "has sent disassoc "
7040+ "req but it is not even auth'ed! sending deauth\n");
7041+ acx_l_transmit_deauthen(adev, ta,
7042+ WLAN_MGMT_REASON_CLASS2_NONAUTH);
7043+ clt->used = CLIENT_EXIST_1;
7044+ } else {
7045+ /* mark it as auth'ed only */
7046+ clt->used = CLIENT_AUTHENTICATED_2;
7047+ }
7048+end:
7049+ FN_EXIT0;
7050+}
7051+
7052+
7053+/***********************************************************************
7054+** acx_l_process_deauthen_from_sta
7055+*/
7056+static void
7057+acx_l_process_deauth_from_sta(acx_device_t *adev, const wlan_fr_deauthen_t *req)
7058+{
7059+ const wlan_hdr_t *hdr;
7060+ client_t *client;
7061+
7062+ FN_ENTER;
7063+
7064+ hdr = req->hdr;
7065+
7066+ if (acx_debug & L_ASSOC) {
7067+ acx_print_mac("got deauth from sta:", hdr->a2, " ");
7068+ acx_print_mac("a1:", hdr->a1, " ");
7069+ acx_print_mac("a3:", hdr->a3, " ");
7070+ acx_print_mac("adev->addr:", adev->dev_addr, " ");
7071+ acx_print_mac("adev->bssid:", adev->bssid, "\n");
7072+ }
7073+
7074+ if (!mac_is_equal(adev->dev_addr, hdr->a1)) {
7075+ goto end;
7076+ }
7077+
7078+ client = acx_l_sta_list_get(adev, hdr->a2);
7079+ if (!client) {
7080+ goto end;
7081+ }
7082+ client->used = CLIENT_EXIST_1;
7083+end:
7084+ FN_EXIT0;
7085+}
7086+
7087+
7088+/***********************************************************************
7089+** acx_l_process_disassoc_from_ap
7090+*/
7091+static void
7092+acx_l_process_disassoc_from_ap(acx_device_t *adev, const wlan_fr_disassoc_t *req)
7093+{
7094+ FN_ENTER;
7095+
7096+ if (!adev->ap_client) {
7097+ /* Hrm, we aren't assoc'ed yet anyhow... */
7098+ goto end;
7099+ }
7100+
7101+ printk("%s: got disassoc frame with reason %d (%s)\n",
7102+ adev->ndev->name, *req->reason,
7103+ acx_wlan_reason_str(*req->reason));
7104+
7105+ if (mac_is_equal(adev->dev_addr, req->hdr->a1)) {
7106+ acx_l_transmit_deauthen(adev, adev->bssid,
7107+ WLAN_MGMT_REASON_DEAUTH_LEAVING);
7108+ SET_BIT(adev->set_mask, GETSET_RESCAN);
7109+ acx_schedule_task(adev, ACX_AFTER_IRQ_UPDATE_CARD_CFG);
7110+ }
7111+end:
7112+ FN_EXIT0;
7113+}
7114+
7115+
7116+/***********************************************************************
7117+** acx_l_process_deauth_from_ap
7118+*/
7119+static void
7120+acx_l_process_deauth_from_ap(acx_device_t *adev, const wlan_fr_deauthen_t *req)
7121+{
7122+ FN_ENTER;
7123+
7124+ if (!adev->ap_client) {
7125+ /* Hrm, we aren't assoc'ed yet anyhow... */
7126+ goto end;
7127+ }
7128+
7129+ printk("%s: got deauth frame with reason %d (%s)\n",
7130+ adev->ndev->name, *req->reason,
7131+ acx_wlan_reason_str(*req->reason));
7132+
7133+ /* Chk: is ta verified to be from our AP? */
7134+ if (mac_is_equal(adev->dev_addr, req->hdr->a1)) {
7135+ log(L_DEBUG, "AP sent us deauth packet\n");
7136+ SET_BIT(adev->set_mask, GETSET_RESCAN);
7137+ acx_schedule_task(adev, ACX_AFTER_IRQ_UPDATE_CARD_CFG);
7138+ }
7139+end:
7140+ FN_EXIT0;
7141+}
7142+
7143+
7144+/***********************************************************************
7145+** acx_l_rx
7146+**
7147+** The end of the Rx path. Pulls data from a rxhostdesc into a socket
7148+** buffer and feeds it to the network stack via netif_rx().
7149+*/
7150+static void
7151+acx_l_rx(acx_device_t *adev, rxbuffer_t *rxbuf)
7152+{
7153+ FN_ENTER;
7154+ if (likely(adev->dev_state_mask & ACX_STATE_IFACE_UP)) {
7155+ struct sk_buff *skb;
7156+ skb = acx_rxbuf_to_ether(adev, rxbuf);
7157+ if (likely(skb)) {
7158+ netif_rx(skb);
7159+ adev->ndev->last_rx = jiffies;
7160+ adev->stats.rx_packets++;
7161+ adev->stats.rx_bytes += skb->len;
7162+ }
7163+ }
7164+ FN_EXIT0;
7165+}
7166+
7167+
7168+/***********************************************************************
7169+** acx_l_process_data_frame_master
7170+*/
7171+static int
7172+acx_l_process_data_frame_master(acx_device_t *adev, rxbuffer_t *rxbuf)
7173+{
7174+ struct wlan_hdr *hdr;
7175+ struct tx *tx;
7176+ void *txbuf;
7177+ int len;
7178+ int result = NOT_OK;
7179+
7180+ FN_ENTER;
7181+
7182+ hdr = acx_get_wlan_hdr(adev, rxbuf);
7183+
7184+ switch (WF_FC_FROMTODSi & hdr->fc) {
7185+ case 0:
7186+ case WF_FC_FROMDSi:
7187+ log(L_DEBUG, "ap->sta or adhoc->adhoc data frame ignored\n");
7188+ goto done;
7189+ case WF_FC_TODSi:
7190+ break;
7191+ default: /* WF_FC_FROMTODSi */
7192+ log(L_DEBUG, "wds data frame ignored (TODO)\n");
7193+ goto done;
7194+ }
7195+
7196+ /* check if it is our BSSID, if not, leave */
7197+ if (!mac_is_equal(adev->bssid, hdr->a1)) {
7198+ goto done;
7199+ }
7200+
7201+ if (mac_is_equal(adev->dev_addr, hdr->a3)) {
7202+ /* this one is for us */
7203+ acx_l_rx(adev, rxbuf);
7204+ } else {
7205+ if (mac_is_bcast(hdr->a3)) {
7206+ /* this one is bcast, rx it too */
7207+ acx_l_rx(adev, rxbuf);
7208+ }
7209+ tx = acx_l_alloc_tx(adev);
7210+ if (!tx) {
7211+ goto fail;
7212+ }
7213+ /* repackage, tx, and hope it someday reaches its destination */
7214+ /* order is important, we do it in-place */
7215+ MAC_COPY(hdr->a1, hdr->a3);
7216+ MAC_COPY(hdr->a3, hdr->a2);
7217+ MAC_COPY(hdr->a2, adev->bssid);
7218+ /* To_DS = 0, From_DS = 1 */
7219+ hdr->fc = WF_FC_FROMDSi + WF_FTYPE_DATAi;
7220+
7221+ txbuf = acx_l_get_txbuf(adev, tx);
7222+ if (txbuf) {
7223+ len = RXBUF_BYTES_RCVD(adev, rxbuf);
7224+ memcpy(txbuf, hdr, len);
7225+ acx_l_tx_data(adev, tx, len);
7226+ } else {
7227+ acx_l_dealloc_tx(adev, tx);
7228+ }
7229+ }
7230+done:
7231+ result = OK;
7232+fail:
7233+ FN_EXIT1(result);
7234+ return result;
7235+}
7236+
7237+
7238+/***********************************************************************
7239+** acx_l_process_data_frame_client
7240+*/
7241+static int
7242+acx_l_process_data_frame_client(acx_device_t *adev, rxbuffer_t *rxbuf)
7243+{
7244+ const u8 *da, *bssid;
7245+ const wlan_hdr_t *hdr;
7246+ struct net_device *ndev = adev->ndev;
7247+ int result = NOT_OK;
7248+
7249+ FN_ENTER;
7250+
7251+ if (ACX_STATUS_4_ASSOCIATED != adev->status)
7252+ goto drop;
7253+
7254+ hdr = acx_get_wlan_hdr(adev, rxbuf);
7255+
7256+ switch (WF_FC_FROMTODSi & hdr->fc) {
7257+ case 0:
7258+ if (adev->mode != ACX_MODE_0_ADHOC) {
7259+ log(L_DEBUG, "adhoc->adhoc data frame ignored\n");
7260+ goto drop;
7261+ }
7262+ bssid = hdr->a3;
7263+ break;
7264+ case WF_FC_FROMDSi:
7265+ if (adev->mode != ACX_MODE_2_STA) {
7266+ log(L_DEBUG, "ap->sta data frame ignored\n");
7267+ goto drop;
7268+ }
7269+ bssid = hdr->a2;
7270+ break;
7271+ case WF_FC_TODSi:
7272+ log(L_DEBUG, "sta->ap data frame ignored\n");
7273+ goto drop;
7274+ default: /* WF_FC_FROMTODSi: wds->wds */
7275+ log(L_DEBUG, "wds data frame ignored (todo)\n");
7276+ goto drop;
7277+ }
7278+
7279+ da = hdr->a1;
7280+
7281+ if (unlikely(acx_debug & L_DEBUG)) {
7282+ acx_print_mac("rx: da=", da, "");
7283+ acx_print_mac(" bssid=", bssid, "");
7284+ acx_print_mac(" adev->bssid=", adev->bssid, "");
7285+ acx_print_mac(" adev->addr=", adev->dev_addr, "\n");
7286+ }
7287+
7288+ /* promiscuous mode --> receive all packets */
7289+ if (unlikely(ndev->flags & IFF_PROMISC))
7290+ goto process;
7291+
7292+ /* FIRST, check if it is our BSSID */
7293+ if (!mac_is_equal(adev->bssid, bssid)) {
7294+ /* is not our BSSID, so bail out */
7295+ goto drop;
7296+ }
7297+
7298+ /* then, check if it is our address */
7299+ if (mac_is_equal(adev->dev_addr, da)) {
7300+ goto process;
7301+ }
7302+
7303+ /* then, check if it is broadcast */
7304+ if (mac_is_bcast(da)) {
7305+ goto process;
7306+ }
7307+
7308+ if (mac_is_mcast(da)) {
7309+ /* unconditionally receive all multicasts */
7310+ if (ndev->flags & IFF_ALLMULTI)
7311+ goto process;
7312+
7313+ /* FIXME: need to check against the list of
7314+ * multicast addresses that are configured
7315+ * for the interface (ifconfig) */
7316+ log(L_XFER, "FIXME: multicast packet, need to check "
7317+ "against a list of multicast addresses "
7318+ "(to be created!); accepting packet for now\n");
7319+ /* for now, just accept it here */
7320+ goto process;
7321+ }
7322+
7323+ log(L_DEBUG, "rx: foreign packet, dropping\n");
7324+ goto drop;
7325+process:
7326+ /* receive packet */
7327+ acx_l_rx(adev, rxbuf);
7328+
7329+ result = OK;
7330+drop:
7331+ FN_EXIT1(result);
7332+ return result;
7333+}
7334+
7335+
7336+/***********************************************************************
7337+** acx_l_process_mgmt_frame
7338+**
7339+** Theory of operation: mgmt packet gets parsed (to make it easy
7340+** to access variable-sized IEs), results stored in 'parsed'.
7341+** Then we react to the packet.
7342+*/
7343+typedef union parsed_mgmt_req {
7344+ wlan_fr_mgmt_t mgmt;
7345+ wlan_fr_assocreq_t assocreq;
7346+ wlan_fr_reassocreq_t reassocreq;
7347+ wlan_fr_assocresp_t assocresp;
7348+ wlan_fr_reassocresp_t reassocresp;
7349+ wlan_fr_beacon_t beacon;
7350+ wlan_fr_disassoc_t disassoc;
7351+ wlan_fr_authen_t authen;
7352+ wlan_fr_deauthen_t deauthen;
7353+ wlan_fr_proberesp_t proberesp;
7354+} parsed_mgmt_req_t;
7355+
7356+void BUG_excessive_stack_usage(void);
7357+
7358+static int
7359+acx_l_process_mgmt_frame(acx_device_t *adev, rxbuffer_t *rxbuf)
7360+{
7361+ parsed_mgmt_req_t parsed; /* takes ~100 bytes of stack */
7362+ wlan_hdr_t *hdr;
7363+ int adhoc, sta_scan, sta, ap;
7364+ int len;
7365+
7366+ if (sizeof(parsed) > 256)
7367+ BUG_excessive_stack_usage();
7368+
7369+ FN_ENTER;
7370+
7371+ hdr = acx_get_wlan_hdr(adev, rxbuf);
7372+
7373+ /* Management frames never have these set */
7374+ if (WF_FC_FROMTODSi & hdr->fc) {
7375+ FN_EXIT1(NOT_OK);
7376+ return NOT_OK;
7377+ }
7378+
7379+ len = RXBUF_BYTES_RCVD(adev, rxbuf);
7380+ if (WF_FC_ISWEPi & hdr->fc)
7381+ len -= 0x10;
7382+
7383+ adhoc = (adev->mode == ACX_MODE_0_ADHOC);
7384+ sta_scan = ((adev->mode == ACX_MODE_2_STA)
7385+ && (adev->status != ACX_STATUS_4_ASSOCIATED));
7386+ sta = ((adev->mode == ACX_MODE_2_STA)
7387+ && (adev->status == ACX_STATUS_4_ASSOCIATED));
7388+ ap = (adev->mode == ACX_MODE_3_AP);
7389+
7390+ switch (WF_FC_FSTYPEi & hdr->fc) {
7391+ /* beacons first, for speed */
7392+ case WF_FSTYPE_BEACONi:
7393+ memset(&parsed.beacon, 0, sizeof(parsed.beacon));
7394+ parsed.beacon.hdr = hdr;
7395+ parsed.beacon.len = len;
7396+ if (acx_debug & L_DATA) {
7397+ printk("beacon len:%d fc:%04X dur:%04X seq:%04X",
7398+ len, hdr->fc, hdr->dur, hdr->seq);
7399+ acx_print_mac(" a1:", hdr->a1, "");
7400+ acx_print_mac(" a2:", hdr->a2, "");
7401+ acx_print_mac(" a3:", hdr->a3, "\n");
7402+ }
7403+ wlan_mgmt_decode_beacon(&parsed.beacon);
7404+ /* beacon and probe response are very similar, so... */
7405+ acx_l_process_probe_response(adev, &parsed.beacon, rxbuf);
7406+ break;
7407+ case WF_FSTYPE_ASSOCREQi:
7408+ if (!ap)
7409+ break;
7410+ memset(&parsed.assocreq, 0, sizeof(parsed.assocreq));
7411+ parsed.assocreq.hdr = hdr;
7412+ parsed.assocreq.len = len;
7413+ wlan_mgmt_decode_assocreq(&parsed.assocreq);
7414+ if (mac_is_equal(hdr->a1, adev->bssid)
7415+ && mac_is_equal(hdr->a3, adev->bssid)) {
7416+ acx_l_transmit_assocresp(adev, &parsed.assocreq);
7417+ }
7418+ break;
7419+ case WF_FSTYPE_REASSOCREQi:
7420+ if (!ap)
7421+ break;
7422+ memset(&parsed.assocreq, 0, sizeof(parsed.assocreq));
7423+ parsed.assocreq.hdr = hdr;
7424+ parsed.assocreq.len = len;
7425+ wlan_mgmt_decode_assocreq(&parsed.assocreq);
7426+ /* reassocreq and assocreq are equivalent */
7427+ acx_l_transmit_reassocresp(adev, &parsed.reassocreq);
7428+ break;
7429+ case WF_FSTYPE_ASSOCRESPi:
7430+ if (!sta_scan)
7431+ break;
7432+ memset(&parsed.assocresp, 0, sizeof(parsed.assocresp));
7433+ parsed.assocresp.hdr = hdr;
7434+ parsed.assocresp.len = len;
7435+ wlan_mgmt_decode_assocresp(&parsed.assocresp);
7436+ acx_l_process_assocresp(adev, &parsed.assocresp);
7437+ break;
7438+ case WF_FSTYPE_REASSOCRESPi:
7439+ if (!sta_scan)
7440+ break;
7441+ memset(&parsed.assocresp, 0, sizeof(parsed.assocresp));
7442+ parsed.assocresp.hdr = hdr;
7443+ parsed.assocresp.len = len;
7444+ wlan_mgmt_decode_assocresp(&parsed.assocresp);
7445+ acx_l_process_reassocresp(adev, &parsed.reassocresp);
7446+ break;
7447+ case WF_FSTYPE_PROBEREQi:
7448+ if (ap || adhoc) {
7449+ /* FIXME: since we're supposed to be an AP,
7450+ ** we need to return a Probe Response packet.
7451+ ** Currently firmware is doing it for us,
7452+ ** but firmware is buggy! See comment elsewhere --vda */
7453+ }
7454+ break;
7455+ case WF_FSTYPE_PROBERESPi:
7456+ memset(&parsed.proberesp, 0, sizeof(parsed.proberesp));
7457+ parsed.proberesp.hdr = hdr;
7458+ parsed.proberesp.len = len;
7459+ wlan_mgmt_decode_proberesp(&parsed.proberesp);
7460+ acx_l_process_probe_response(adev, &parsed.proberesp, rxbuf);
7461+ break;
7462+ case 6:
7463+ case 7:
7464+ /* exit */
7465+ break;
7466+ case WF_FSTYPE_ATIMi:
7467+ /* exit */
7468+ break;
7469+ case WF_FSTYPE_DISASSOCi:
7470+ if (!sta && !ap)
7471+ break;
7472+ memset(&parsed.disassoc, 0, sizeof(parsed.disassoc));
7473+ parsed.disassoc.hdr = hdr;
7474+ parsed.disassoc.len = len;
7475+ wlan_mgmt_decode_disassoc(&parsed.disassoc);
7476+ if (sta)
7477+ acx_l_process_disassoc_from_ap(adev, &parsed.disassoc);
7478+ else
7479+ acx_l_process_disassoc_from_sta(adev, &parsed.disassoc);
7480+ break;
7481+ case WF_FSTYPE_AUTHENi:
7482+ if (!sta_scan && !ap)
7483+ break;
7484+ memset(&parsed.authen, 0, sizeof(parsed.authen));
7485+ parsed.authen.hdr = hdr;
7486+ parsed.authen.len = len;
7487+ wlan_mgmt_decode_authen(&parsed.authen);
7488+ acx_l_process_authen(adev, &parsed.authen);
7489+ break;
7490+ case WF_FSTYPE_DEAUTHENi:
7491+ if (!sta && !ap)
7492+ break;
7493+ memset(&parsed.deauthen, 0, sizeof(parsed.deauthen));
7494+ parsed.deauthen.hdr = hdr;
7495+ parsed.deauthen.len = len;
7496+ wlan_mgmt_decode_deauthen(&parsed.deauthen);
7497+ if (sta)
7498+ acx_l_process_deauth_from_ap(adev, &parsed.deauthen);
7499+ else
7500+ acx_l_process_deauth_from_sta(adev, &parsed.deauthen);
7501+ break;
7502+ }
7503+
7504+ FN_EXIT1(OK);
7505+ return OK;
7506+}
7507+
7508+
7509+#ifdef UNUSED
7510+/***********************************************************************
7511+** acx_process_class_frame
7512+**
7513+** Called from IRQ context only
7514+*/
7515+static int
7516+acx_process_class_frame(acx_device_t *adev, rxbuffer_t *rxbuf, int vala)
7517+{
7518+ return OK;
7519+}
7520+#endif
7521+
7522+
7523+/***********************************************************************
7524+** acx_l_process_NULL_frame
7525+*/
7526+#ifdef BOGUS_ITS_NOT_A_NULL_FRAME_HANDLER_AT_ALL
7527+static int
7528+acx_l_process_NULL_frame(acx_device_t *adev, rxbuffer_t *rxbuf, int vala)
7529+{
7530+ const signed char *esi;
7531+ const u8 *ebx;
7532+ const wlan_hdr_t *hdr;
7533+ const client_t *client;
7534+ int result = NOT_OK;
7535+
7536+ hdr = acx_get_wlan_hdr(adev, rxbuf);
7537+
7538+ switch (WF_FC_FROMTODSi & hdr->fc) {
7539+ case 0:
7540+ esi = hdr->a1;
7541+ ebx = hdr->a2;
7542+ break;
7543+ case WF_FC_FROMDSi:
7544+ esi = hdr->a1;
7545+ ebx = hdr->a3;
7546+ break;
7547+ case WF_FC_TODSi:
7548+ esi = hdr->a1;
7549+ ebx = hdr->a2;
7550+ break;
7551+ default: /* WF_FC_FROMTODSi */
7552+ esi = hdr->a1; /* added by me! --vda */
7553+ ebx = hdr->a2;
7554+ }
7555+
7556+ if (esi[0x0] < 0) {
7557+ result = OK;
7558+ goto done;
7559+ }
7560+
7561+ client = acx_l_sta_list_get(adev, ebx);
7562+ if (client)
7563+ result = NOT_OK;
7564+ else {
7565+#ifdef IS_IT_BROKEN
7566+ log(L_DEBUG|L_XFER, "<transmit_deauth 7>\n");
7567+ acx_l_transmit_deauthen(adev, ebx,
7568+ WLAN_MGMT_REASON_CLASS2_NONAUTH);
7569+#else
7570+ log(L_DEBUG, "received NULL frame from unknown client! "
7571+ "We really shouldn't send deauthen here, right?\n");
7572+#endif
7573+ result = OK;
7574+ }
7575+done:
7576+ return result;
7577+}
7578+#endif
7579+
7580+
7581+/***********************************************************************
7582+** acx_l_process_probe_response
7583+*/
7584+static int
7585+acx_l_process_probe_response(acx_device_t *adev, wlan_fr_proberesp_t *req,
7586+ const rxbuffer_t *rxbuf)
7587+{
7588+ struct client *bss;
7589+ wlan_hdr_t *hdr;
7590+
7591+ FN_ENTER;
7592+
7593+ hdr = req->hdr;
7594+
7595+ if (mac_is_equal(hdr->a3, adev->dev_addr)) {
7596+ log(L_ASSOC, "huh, scan found our own MAC!?\n");
7597+ goto ok; /* just skip this one silently */
7598+ }
7599+
7600+ bss = acx_l_sta_list_get_or_add(adev, hdr->a2);
7601+
7602+ /* NB: be careful modifying bss data! It may be one
7603+ ** of the already known clients (like our AP if we are a STA)
7604+ ** Thus do not blindly modify e.g. current ratemask! */
7605+
7606+ if (STA_LIST_ADD_CAN_FAIL && !bss) {
7607+ /* uh oh, we found more sites/stations than we can handle with
7608+ * our current setup: pull the emergency brake and stop scanning! */
7609+ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_STOP_SCAN);
7610+ /* TODO: a nice comment what below call achieves --vda */
7611+ acx_set_status(adev, ACX_STATUS_2_WAIT_AUTH);
7612+ goto ok;
7613+ }
7614+ /* NB: get_or_add already filled bss->address = hdr->a2 */
7615+ MAC_COPY(bss->bssid, hdr->a3);
7616+
7617+ /* copy the ESSID element */
7618+ if (req->ssid && req->ssid->len <= IW_ESSID_MAX_SIZE) {
7619+ bss->essid_len = req->ssid->len;
7620+ memcpy(bss->essid, req->ssid->ssid, req->ssid->len);
7621+ bss->essid[req->ssid->len] = '\0';
7622+ } else {
7623+ /* Either no ESSID IE or oversized one */
7624+ printk("%s: received packet has bogus ESSID\n",
7625+ adev->ndev->name);
7626+ }
7627+
7628+ if (req->ds_parms)
7629+ bss->channel = req->ds_parms->curr_ch;
7630+ if (req->cap_info)
7631+ bss->cap_info = ieee2host16(*req->cap_info);
7632+
7633+ bss->sir = acx_signal_to_winlevel(rxbuf->phy_level);
7634+ bss->snr = acx_signal_to_winlevel(rxbuf->phy_snr);
7635+
7636+ bss->rate_cap = 0; /* operational mask */
7637+ bss->rate_bas = 0; /* basic mask */
7638+ if (req->supp_rates)
7639+ add_bits_to_ratemasks(req->supp_rates->rates,
7640+ req->supp_rates->len, &bss->rate_bas, &bss->rate_cap);
7641+ if (req->ext_rates)
7642+ add_bits_to_ratemasks(req->ext_rates->rates,
7643+ req->ext_rates->len, &bss->rate_bas, &bss->rate_cap);
7644+ /* Fix up any possible bogosity - code elsewhere
7645+ * is not expecting empty masks */
7646+ if (!bss->rate_cap)
7647+ bss->rate_cap = adev->rate_basic;
7648+ if (!bss->rate_bas)
7649+ bss->rate_bas = 1 << lowest_bit(bss->rate_cap);
7650+ if (!bss->rate_cur)
7651+ bss->rate_cur = 1 << lowest_bit(bss->rate_bas);
7652+
7653+ /* People moan about this being too noisy at L_ASSOC */
7654+ log(L_DEBUG,
7655+ "found %s: ESSID=\"%s\" ch=%d "
7656+ "BSSID="MACSTR" caps=0x%04X SIR=%d SNR=%d\n",
7657+ (bss->cap_info & WF_MGMT_CAP_IBSS) ? "Ad-Hoc peer" : "AP",
7658+ bss->essid, bss->channel, MAC(bss->bssid), bss->cap_info,
7659+ bss->sir, bss->snr);
7660+ok:
7661+ FN_EXIT0;
7662+ return OK;
7663+}
7664+
7665+
7666+/***********************************************************************
7667+** acx_l_process_assocresp
7668+*/
7669+static int
7670+acx_l_process_assocresp(acx_device_t *adev, const wlan_fr_assocresp_t *req)
7671+{
7672+ const wlan_hdr_t *hdr;
7673+ int res = OK;
7674+
7675+ FN_ENTER;
7676+
7677+ hdr = req->hdr;
7678+
7679+ if ((ACX_MODE_2_STA == adev->mode)
7680+ && mac_is_equal(adev->dev_addr, hdr->a1)) {
7681+ u16 st = ieee2host16(*(req->status));
7682+ if (WLAN_MGMT_STATUS_SUCCESS == st) {
7683+ adev->aid = ieee2host16(*(req->aid));
7684+ /* tell the card we are associated when
7685+ ** we are out of interrupt context */
7686+ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_ASSOCIATE);
7687+ } else {
7688+
7689+ /* TODO: we shall delete peer from sta_list, and try
7690+ ** other candidates... */
7691+
7692+ printk("%s: association FAILED: peer sent "
7693+ "Status Code %d (%s)\n",
7694+ adev->ndev->name, st, get_status_string(st));
7695+ res = NOT_OK;
7696+ }
7697+ }
7698+
7699+ FN_EXIT1(res);
7700+ return res;
7701+}
7702+
7703+
7704+/***********************************************************************
7705+** acx_l_process_reassocresp
7706+*/
7707+static int
7708+acx_l_process_reassocresp(acx_device_t *adev, const wlan_fr_reassocresp_t *req)
7709+{
7710+ const wlan_hdr_t *hdr;
7711+ int result = NOT_OK;
7712+ u16 st;
7713+
7714+ FN_ENTER;
7715+
7716+ hdr = req->hdr;
7717+
7718+ if (!mac_is_equal(adev->dev_addr, hdr->a1)) {
7719+ goto end;
7720+ }
7721+ st = ieee2host16(*(req->status));
7722+ if (st == WLAN_MGMT_STATUS_SUCCESS) {
7723+ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED);
7724+ result = OK;
7725+ } else {
7726+ printk("%s: reassociation FAILED: peer sent "
7727+ "response code %d (%s)\n",
7728+ adev->ndev->name, st, get_status_string(st));
7729+ }
7730+end:
7731+ FN_EXIT1(result);
7732+ return result;
7733+}
7734+
7735+
7736+/***********************************************************************
7737+** acx_l_process_authen
7738+**
7739+** Called only in STA_SCAN or AP mode
7740+*/
7741+static int
7742+acx_l_process_authen(acx_device_t *adev, const wlan_fr_authen_t *req)
7743+{
7744+ const wlan_hdr_t *hdr;
7745+ client_t *clt;
7746+ wlan_ie_challenge_t *chal;
7747+ u16 alg, seq, status;
7748+ int ap, result;
7749+
7750+ FN_ENTER;
7751+
7752+ hdr = req->hdr;
7753+
7754+ if (acx_debug & L_ASSOC) {
7755+ acx_print_mac("AUTHEN adev->addr=", adev->dev_addr, " ");
7756+ acx_print_mac("a1=", hdr->a1, " ");
7757+ acx_print_mac("a2=", hdr->a2, " ");
7758+ acx_print_mac("a3=", hdr->a3, " ");
7759+ acx_print_mac("adev->bssid=", adev->bssid, "\n");
7760+ }
7761+
7762+ if (!mac_is_equal(adev->dev_addr, hdr->a1)
7763+ || !mac_is_equal(adev->bssid, hdr->a3)) {
7764+ result = OK;
7765+ goto end;
7766+ }
7767+
7768+ alg = ieee2host16(*(req->auth_alg));
7769+ seq = ieee2host16(*(req->auth_seq));
7770+ status = ieee2host16(*(req->status));
7771+
7772+ log(L_ASSOC, "auth algorithm %d, auth sequence %d, status %d\n", alg, seq, status);
7773+
7774+ ap = (adev->mode == ACX_MODE_3_AP);
7775+
7776+ if (adev->auth_alg <= 1) {
7777+ if (adev->auth_alg != alg) {
7778+ log(L_ASSOC, "auth algorithm mismatch: "
7779+ "our:%d peer:%d\n", adev->auth_alg, alg);
7780+ result = NOT_OK;
7781+ goto end;
7782+ }
7783+ }
7784+ if (ap) {
7785+ clt = acx_l_sta_list_get_or_add(adev, hdr->a2);
7786+ if (STA_LIST_ADD_CAN_FAIL && !clt) {
7787+ log(L_ASSOC, "could not allocate room for client\n");
7788+ result = NOT_OK;
7789+ goto end;
7790+ }
7791+ } else {
7792+ clt = adev->ap_client;
7793+ if (!mac_is_equal(clt->address, hdr->a2)) {
7794+ printk("%s: malformed auth frame from AP?!\n",
7795+ adev->ndev->name);
7796+ result = NOT_OK;
7797+ goto end;
7798+ }
7799+ }
7800+
7801+ /* now check which step in the authentication sequence we are
7802+ * currently in, and act accordingly */
7803+ switch (seq) {
7804+ case 1:
7805+ if (!ap)
7806+ break;
7807+ acx_l_transmit_authen2(adev, req, clt);
7808+ break;
7809+ case 2:
7810+ if (ap)
7811+ break;
7812+ if (status == WLAN_MGMT_STATUS_SUCCESS) {
7813+ if (alg == WLAN_AUTH_ALG_OPENSYSTEM) {
7814+ acx_set_status(adev, ACX_STATUS_3_AUTHENTICATED);
7815+ acx_l_transmit_assoc_req(adev);
7816+ } else
7817+ if (alg == WLAN_AUTH_ALG_SHAREDKEY) {
7818+ acx_l_transmit_authen3(adev, req);
7819+ }
7820+ } else {
7821+ printk("%s: auth FAILED: peer sent "
7822+ "response code %d (%s), "
7823+ "still waiting for authentication\n",
7824+ adev->ndev->name,
7825+ status, get_status_string(status));
7826+ acx_set_status(adev, ACX_STATUS_2_WAIT_AUTH);
7827+ }
7828+ break;
7829+ case 3:
7830+ if (!ap)
7831+ break;
7832+ if ((clt->auth_alg != WLAN_AUTH_ALG_SHAREDKEY)
7833+ || (alg != WLAN_AUTH_ALG_SHAREDKEY)
7834+ || (clt->auth_step != 2))
7835+ break;
7836+ chal = req->challenge;
7837+ if (!chal
7838+ || memcmp(chal->challenge, clt->challenge_text, WLAN_CHALLENGE_LEN)
7839+ || (chal->eid != WLAN_EID_CHALLENGE)
7840+ || (chal->len != WLAN_CHALLENGE_LEN)
7841+ )
7842+ break;
7843+ acx_l_transmit_authen4(adev, req);
7844+ MAC_COPY(clt->address, hdr->a2);
7845+ clt->used = CLIENT_AUTHENTICATED_2;
7846+ clt->auth_step = 4;
7847+ clt->seq = ieee2host16(hdr->seq);
7848+ break;
7849+ case 4:
7850+ if (ap)
7851+ break;
7852+ /* ok, we're through: we're authenticated. Woohoo!! */
7853+ acx_set_status(adev, ACX_STATUS_3_AUTHENTICATED);
7854+ log(L_ASSOC, "Authenticated!\n");
7855+ /* now that we're authenticated, request association */
7856+ acx_l_transmit_assoc_req(adev);
7857+ break;
7858+ }
7859+ result = OK;
7860+end:
7861+ FN_EXIT1(result);
7862+ return result;
7863+}
7864+
7865+
7866+/***********************************************************************
7867+** acx_gen_challenge
7868+*/
7869+static inline void
7870+acx_gen_challenge(wlan_ie_challenge_t* d)
7871+{
7872+ FN_ENTER;
7873+ d->eid = WLAN_EID_CHALLENGE;
7874+ d->len = WLAN_CHALLENGE_LEN;
7875+ get_random_bytes(d->challenge, WLAN_CHALLENGE_LEN);
7876+ FN_EXIT0;
7877+}
7878+
7879+
7880+/***********************************************************************
7881+** acx_l_transmit_deauthen
7882+*/
7883+static int
7884+acx_l_transmit_deauthen(acx_device_t *adev, const u8 *addr, u16 reason)
7885+{
7886+ struct tx *tx;
7887+ struct wlan_hdr_mgmt *head;
7888+ struct deauthen_frame_body *body;
7889+
7890+ FN_ENTER;
7891+
7892+ tx = acx_l_alloc_tx(adev);
7893+ if (!tx)
7894+ goto bad;
7895+ head = acx_l_get_txbuf(adev, tx);
7896+ if (!head) {
7897+ acx_l_dealloc_tx(adev, tx);
7898+ goto bad;
7899+ }
7900+ body = (void*)(head + 1);
7901+
7902+ head->fc = (WF_FTYPE_MGMTi | WF_FSTYPE_DEAUTHENi);
7903+ head->dur = 0;
7904+ MAC_COPY(head->da, addr);
7905+ MAC_COPY(head->sa, adev->dev_addr);
7906+ MAC_COPY(head->bssid, adev->bssid);
7907+ head->seq = 0;
7908+
7909+ log(L_DEBUG|L_ASSOC|L_XFER,
7910+ "sending deauthen to "MACSTR" for %d\n",
7911+ MAC(addr), reason);
7912+
7913+ body->reason = host2ieee16(reason);
7914+
7915+ /* body is fixed size here, but beware of cutting-and-pasting this -
7916+ ** do not use sizeof(*body) for variable sized mgmt packets! */
7917+ acx_l_tx_data(adev, tx, WLAN_HDR_A3_LEN + sizeof(*body));
7918+
7919+ FN_EXIT1(OK);
7920+ return OK;
7921+bad:
7922+ FN_EXIT1(NOT_OK);
7923+ return NOT_OK;
7924+}
7925+
7926+
7927+/***********************************************************************
7928+** acx_l_transmit_authen1
7929+*/
7930+static int
7931+acx_l_transmit_authen1(acx_device_t *adev)
7932+{
7933+ struct tx *tx;
7934+ struct wlan_hdr_mgmt *head;
7935+ struct auth_frame_body *body;
7936+
7937+ FN_ENTER;
7938+
7939+ log(L_ASSOC, "sending authentication1 request (auth algo %d), "
7940+ "awaiting response\n", adev->auth_alg);
7941+
7942+ tx = acx_l_alloc_tx(adev);
7943+ if (!tx)
7944+ goto bad;
7945+ head = acx_l_get_txbuf(adev, tx);
7946+ if (!head) {
7947+ acx_l_dealloc_tx(adev, tx);
7948+ goto bad;
7949+ }
7950+ body = (void*)(head + 1);
7951+
7952+ head->fc = WF_FSTYPE_AUTHENi;
7953+ /* duration should be 0 instead of 0x8000 to have
7954+ * the firmware calculate the value, right? */
7955+ head->dur = 0;
7956+ MAC_COPY(head->da, adev->bssid);
7957+ MAC_COPY(head->sa, adev->dev_addr);
7958+ MAC_COPY(head->bssid, adev->bssid);
7959+ head->seq = 0;
7960+
7961+ body->auth_alg = host2ieee16(adev->auth_alg);
7962+ body->auth_seq = host2ieee16(1);
7963+ body->status = host2ieee16(0);
7964+
7965+ acx_l_tx_data(adev, tx, WLAN_HDR_A3_LEN + 2 + 2 + 2);
7966+
7967+ FN_EXIT1(OK);
7968+ return OK;
7969+bad:
7970+ FN_EXIT1(NOT_OK);
7971+ return NOT_OK;
7972+}
7973+
7974+
7975+/***********************************************************************
7976+** acx_l_transmit_authen2
7977+*/
7978+static int
7979+acx_l_transmit_authen2(acx_device_t *adev, const wlan_fr_authen_t *req,
7980+ client_t *clt)
7981+{
7982+ struct tx *tx;
7983+ struct wlan_hdr_mgmt *head;
7984+ struct auth_frame_body *body;
7985+ unsigned int packet_len;
7986+
7987+ FN_ENTER;
7988+
7989+ if (!clt)
7990+ goto ok;
7991+
7992+ MAC_COPY(clt->address, req->hdr->a2);
7993+#ifdef UNUSED
7994+ clt->ps = ((WF_FC_PWRMGTi & req->hdr->fc) != 0);
7995+#endif
7996+ clt->auth_alg = ieee2host16(*(req->auth_alg));
7997+ clt->auth_step = 2;
7998+ clt->seq = ieee2host16(req->hdr->seq);
7999+
8000+ tx = acx_l_alloc_tx(adev);
8001+ if (!tx)
8002+ goto bad;
8003+ head = acx_l_get_txbuf(adev, tx);
8004+ if (!head) {
8005+ acx_l_dealloc_tx(adev, tx);
8006+ goto bad;
8007+ }
8008+ body = (void*)(head + 1);
8009+
8010+ head->fc = WF_FSTYPE_AUTHENi;
8011+ head->dur = 0 /* req->hdr->dur */;
8012+ MAC_COPY(head->da, req->hdr->a2);
8013+ MAC_COPY(head->sa, adev->dev_addr);
8014+ MAC_COPY(head->bssid, req->hdr->a3);
8015+ head->seq = 0 /* req->hdr->seq */;
8016+
8017+ /* already in IEEE format, no endianness conversion */
8018+ body->auth_alg = *(req->auth_alg);
8019+ body->auth_seq = host2ieee16(2);
8020+ body->status = host2ieee16(0);
8021+
8022+ packet_len = WLAN_HDR_A3_LEN + 2 + 2 + 2;
8023+ if (ieee2host16(*(req->auth_alg)) == WLAN_AUTH_ALG_OPENSYSTEM) {
8024+ clt->used = CLIENT_AUTHENTICATED_2;
8025+ } else { /* shared key */
8026+ acx_gen_challenge(&body->challenge);
8027+ memcpy(&clt->challenge_text, body->challenge.challenge, WLAN_CHALLENGE_LEN);
8028+ packet_len += 2 + 2 + 2 + 1+1+WLAN_CHALLENGE_LEN;
8029+ }
8030+
8031+ acxlog_mac(L_ASSOC|L_XFER,
8032+ "transmit_auth2: BSSID=", head->bssid, "\n");
8033+
8034+ acx_l_tx_data(adev, tx, packet_len);
8035+ok:
8036+ FN_EXIT1(OK);
8037+ return OK;
8038+bad:
8039+ FN_EXIT1(NOT_OK);
8040+ return NOT_OK;
8041+}
8042+
8043+
8044+/***********************************************************************
8045+** acx_l_transmit_authen3
8046+*/
8047+static int
8048+acx_l_transmit_authen3(acx_device_t *adev, const wlan_fr_authen_t *req)
8049+{
8050+ struct tx *tx;
8051+ struct wlan_hdr_mgmt *head;
8052+ struct auth_frame_body *body;
8053+ unsigned int packet_len;
8054+
8055+ FN_ENTER;
8056+
8057+ tx = acx_l_alloc_tx(adev);
8058+ if (!tx)
8059+ goto ok;
8060+ head = acx_l_get_txbuf(adev, tx);
8061+ if (!head) {
8062+ acx_l_dealloc_tx(adev, tx);
8063+ goto ok;
8064+ }
8065+ body = (void*)(head + 1);
8066+
8067+ /* add WF_FC_ISWEPi: auth step 3 needs to be encrypted */
8068+ head->fc = WF_FC_ISWEPi + WF_FSTYPE_AUTHENi;
8069+ /* FIXME: is this needed?? authen4 does it...
8070+ * I think it's even wrong since we shouldn't re-use old
8071+ * values but instead let the firmware calculate proper ones
8072+ head->dur = req->hdr->dur;
8073+ head->seq = req->hdr->seq;
8074+ */
8075+ MAC_COPY(head->da, adev->bssid);
8076+ MAC_COPY(head->sa, adev->dev_addr);
8077+ MAC_COPY(head->bssid, adev->bssid);
8078+
8079+ /* already in IEEE format, no endianness conversion */
8080+ body->auth_alg = *(req->auth_alg);
8081+ body->auth_seq = host2ieee16(3);
8082+ body->status = host2ieee16(0);
8083+ memcpy(&body->challenge, req->challenge, req->challenge->len + 2);
8084+ packet_len = WLAN_HDR_A3_LEN + 8 + req->challenge->len;
8085+
8086+ log(L_ASSOC|L_XFER, "transmit_authen3!\n");
8087+
8088+ acx_l_tx_data(adev, tx, packet_len);
8089+ok:
8090+ FN_EXIT1(OK);
8091+ return OK;
8092+}
8093+
8094+
8095+/***********************************************************************
8096+** acx_l_transmit_authen4
8097+*/
8098+static int
8099+acx_l_transmit_authen4(acx_device_t *adev, const wlan_fr_authen_t *req)
8100+{
8101+ struct tx *tx;
8102+ struct wlan_hdr_mgmt *head;
8103+ struct auth_frame_body *body;
8104+
8105+ FN_ENTER;
8106+
8107+ tx = acx_l_alloc_tx(adev);
8108+ if (!tx)
8109+ goto ok;
8110+ head = acx_l_get_txbuf(adev, tx);
8111+ if (!head) {
8112+ acx_l_dealloc_tx(adev, tx);
8113+ goto ok;
8114+ }
8115+ body = (void*)(head + 1);
8116+
8117+ head->fc = WF_FSTYPE_AUTHENi; /* 0xb0 */
8118+ head->dur = 0 /* req->hdr->dur */;
8119+ MAC_COPY(head->da, req->hdr->a2);
8120+ MAC_COPY(head->sa, adev->dev_addr);
8121+ MAC_COPY(head->bssid, req->hdr->a3);
8122+ head->seq = 0 /* req->hdr->seq */;
8123+
8124+ /* already in IEEE format, no endianness conversion */
8125+ body->auth_alg = *(req->auth_alg);
8126+ body->auth_seq = host2ieee16(4);
8127+ body->status = host2ieee16(0);
8128+
8129+ acx_l_tx_data(adev, tx, WLAN_HDR_A3_LEN + 2 + 2 + 2);
8130+ok:
8131+ FN_EXIT1(OK);
8132+ return OK;
8133+}
8134+
8135+
8136+/***********************************************************************
8137+** acx_l_transmit_assoc_req
8138+**
8139+** adev->ap_client is a current candidate AP here
8140+*/
8141+static int
8142+acx_l_transmit_assoc_req(acx_device_t *adev)
8143+{
8144+ struct tx *tx;
8145+ struct wlan_hdr_mgmt *head;
8146+ u8 *body, *p, *prate;
8147+ unsigned int packet_len;
8148+ u16 cap;
8149+
8150+ FN_ENTER;
8151+
8152+ log(L_ASSOC, "sending association request, "
8153+ "awaiting response. NOT ASSOCIATED YET\n");
8154+ tx = acx_l_alloc_tx(adev);
8155+ if (!tx)
8156+ goto bad;
8157+ head = acx_l_get_txbuf(adev, tx);
8158+ if (!head) {
8159+ acx_l_dealloc_tx(adev, tx);
8160+ goto bad;
8161+ }
8162+ body = (void*)(head + 1);
8163+
8164+ head->fc = WF_FSTYPE_ASSOCREQi;
8165+ head->dur = host2ieee16(0x8000);
8166+ MAC_COPY(head->da, adev->bssid);
8167+ MAC_COPY(head->sa, adev->dev_addr);
8168+ MAC_COPY(head->bssid, adev->bssid);
8169+ head->seq = 0;
8170+
8171+ p = body;
8172+ /* now start filling the AssocReq frame body */
8173+
8174+ /* since this assoc request will most likely only get
8175+ * sent in the STA to AP case (and not when Ad-Hoc IBSS),
8176+ * the cap combination indicated here will thus be
8177+ * WF_MGMT_CAP_ESSi *always* (no IBSS ever)
8178+ * The specs are more than non-obvious on all that:
8179+ *
8180+ * 802.11 7.3.1.4 Capability Information field
8181+ ** APs set the ESS subfield to 1 and the IBSS subfield to 0 within
8182+ ** Beacon or Probe Response management frames. STAs within an IBSS
8183+ ** set the ESS subfield to 0 and the IBSS subfield to 1 in transmitted
8184+ ** Beacon or Probe Response management frames
8185+ **
8186+ ** APs set the Privacy subfield to 1 within transmitted Beacon,
8187+ ** Probe Response, Association Response, and Reassociation Response
8188+ ** if WEP is required for all data type frames within the BSS.
8189+ ** STAs within an IBSS set the Privacy subfield to 1 in Beacon
8190+ ** or Probe Response management frames if WEP is required
8191+ ** for all data type frames within the IBSS */
8192+
8193+ /* note that returning 0 will be refused by several APs...
8194+ * (so this indicates that you're probably supposed to
8195+ * "confirm" the ESS mode) */
8196+ cap = WF_MGMT_CAP_ESSi;
8197+
8198+ /* this one used to be a check on wep_restricted,
8199+ * but more likely it's wep_enabled instead */
8200+ if (adev->wep_enabled)
8201+ SET_BIT(cap, WF_MGMT_CAP_PRIVACYi);
8202+
8203+ /* Probably we can just set these always, because our hw is
8204+ ** capable of shortpre and PBCC --vda */
8205+ /* only ask for short preamble if the peer station supports it */
8206+ if (adev->ap_client->cap_info & WF_MGMT_CAP_SHORT)
8207+ SET_BIT(cap, WF_MGMT_CAP_SHORTi);
8208+ /* only ask for PBCC support if the peer station supports it */
8209+ if (adev->ap_client->cap_info & WF_MGMT_CAP_PBCC)
8210+ SET_BIT(cap, WF_MGMT_CAP_PBCCi);
8211+
8212+ /* IEs: 1. caps */
8213+ *(u16*)p = cap; p += 2;
8214+ /* 2. listen interval */
8215+ *(u16*)p = host2ieee16(adev->listen_interval); p += 2;
8216+ /* 3. ESSID */
8217+ p = wlan_fill_ie_ssid(p,
8218+ strlen(adev->essid_for_assoc), adev->essid_for_assoc);
8219+ /* 4. supp rates */
8220+ prate = p;
8221+ p = wlan_fill_ie_rates(p,
8222+ adev->rate_supported_len, adev->rate_supported);
8223+ /* 5. ext supp rates */
8224+ p = wlan_fill_ie_rates_ext(p,
8225+ adev->rate_supported_len, adev->rate_supported);
8226+
8227+ if (acx_debug & L_DEBUG) {
8228+ printk("association: rates element\n");
8229+ acx_dump_bytes(prate, p - prate);
8230+ }
8231+
8232+ /* calculate lengths */
8233+ packet_len = WLAN_HDR_A3_LEN + (p - body);
8234+
8235+ log(L_ASSOC, "association: requesting caps 0x%04X, ESSID \"%s\"\n",
8236+ cap, adev->essid_for_assoc);
8237+
8238+ acx_l_tx_data(adev, tx, packet_len);
8239+ FN_EXIT1(OK);
8240+ return OK;
8241+bad:
8242+ FN_EXIT1(NOT_OK);
8243+ return NOT_OK;
8244+}
8245+
8246+
8247+/***********************************************************************
8248+** acx_l_transmit_disassoc
8249+**
8250+** FIXME: looks like incomplete implementation of a helper:
8251+** acx_l_transmit_disassoc(adev, clt) - kick this client (we're an AP)
8252+** acx_l_transmit_disassoc(adev, NULL) - leave BSSID (we're a STA)
8253+*/
8254+#ifdef BROKEN
8255+int
8256+acx_l_transmit_disassoc(acx_device_t *adev, client_t *clt)
8257+{
8258+ struct tx *tx;
8259+ struct wlan_hdr_mgmt *head;
8260+ struct disassoc_frame_body *body;
8261+
8262+ FN_ENTER;
8263+/* if (clt != NULL) { */
8264+ tx = acx_l_alloc_tx(adev);
8265+ if (!tx)
8266+ goto bad;
8267+ head = acx_l_get_txbuf(adev, tx);
8268+ if (!head) {
8269+ acx_l_dealloc_tx(adev, tx);
8270+ goto bad;
8271+ }
8272+ body = (void*)(head + 1);
8273+
8274+/* clt->used = CLIENT_AUTHENTICATED_2; - not (yet?) associated */
8275+
8276+ head->fc = WF_FSTYPE_DISASSOCi;
8277+ head->dur = 0;
8278+ /* huh? It muchly depends on whether we're STA or AP...
8279+ ** sta->ap: da=bssid, sa=own, bssid=bssid
8280+ ** ap->sta: da=sta, sa=bssid, bssid=bssid. FIXME! */
8281+ MAC_COPY(head->da, adev->bssid);
8282+ MAC_COPY(head->sa, adev->dev_addr);
8283+ MAC_COPY(head->bssid, adev->dev_addr);
8284+ head->seq = 0;
8285+
8286+ /* "Class 3 frame received from nonassociated station." */
8287+ body->reason = host2ieee16(7);
8288+
8289+ /* fixed size struct, ok to sizeof */
8290+ acx_l_tx_data(adev, tx, WLAN_HDR_A3_LEN + sizeof(*body));
8291+/* } */
8292+ FN_EXIT1(OK);
8293+ return OK;
8294+bad:
8295+ FN_EXIT1(NOT_OK);
8296+ return NOT_OK;
8297+}
8298+#endif
8299+
8300+
8301+/***********************************************************************
8302+** acx_s_complete_scan
8303+**
8304+** Called either from after_interrupt_task() if:
8305+** 1) there was Scan_Complete IRQ, or
8306+** 2) scanning expired in timer()
8307+** We need to decide which ESS or IBSS to join.
8308+** Iterates thru adev->sta_list:
8309+** if adev->ap is not bcast, will join only specified
8310+** ESS or IBSS with this bssid
8311+** checks peers' caps for ESS/IBSS bit
8312+** checks peers' SSID, allows exact match or hidden SSID
8313+** If station to join is chosen:
8314+** points adev->ap_client to the chosen struct client
8315+** sets adev->essid_for_assoc for future assoc attempt
8316+** Auth/assoc is not yet performed
8317+** Returns OK if there is no need to restart scan
8318+*/
8319+int
8320+acx_s_complete_scan(acx_device_t *adev)
8321+{
8322+ struct client *bss;
8323+ unsigned long flags;
8324+ u16 needed_cap;
8325+ int i;
8326+ int idx_found = -1;
8327+ int result = OK;
8328+
8329+ FN_ENTER;
8330+
8331+ switch (adev->mode) {
8332+ case ACX_MODE_0_ADHOC:
8333+ needed_cap = WF_MGMT_CAP_IBSS; /* 2, we require Ad-Hoc */
8334+ break;
8335+ case ACX_MODE_2_STA:
8336+ needed_cap = WF_MGMT_CAP_ESS; /* 1, we require Managed */
8337+ break;
8338+ default:
8339+ printk("acx: driver bug: mode=%d in complete_scan()\n", adev->mode);
8340+ dump_stack();
8341+ goto end;
8342+ }
8343+
8344+ acx_lock(adev, flags);
8345+
8346+ /* TODO: sta_iterator hiding implementation would be nice here... */
8347+
8348+ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) {
8349+ bss = &adev->sta_list[i];
8350+ if (!bss->used) continue;
8351+
8352+
8353+ log(L_ASSOC, "scan table: SSID=\"%s\" CH=%d SIR=%d SNR=%d\n",
8354+ bss->essid, bss->channel, bss->sir, bss->snr);
8355+
8356+ if (!mac_is_bcast(adev->ap))
8357+ if (!mac_is_equal(bss->bssid, adev->ap))
8358+ continue; /* keep looking */
8359+
8360+ /* broken peer with no mode flags set? */
8361+ if (unlikely(!(bss->cap_info & (WF_MGMT_CAP_ESS | WF_MGMT_CAP_IBSS)))) {
8362+ printk("%s: strange peer "MACSTR" found with "
8363+ "neither ESS (AP) nor IBSS (Ad-Hoc) "
8364+ "capability - skipped\n",
8365+ adev->ndev->name, MAC(bss->address));
8366+ continue;
8367+ }
8368+ log(L_ASSOC, "peer_cap 0x%04X, needed_cap 0x%04X\n",
8369+ bss->cap_info, needed_cap);
8370+
8371+ /* does peer station support what we need? */
8372+ if ((bss->cap_info & needed_cap) != needed_cap)
8373+ continue; /* keep looking */
8374+
8375+ /* strange peer with NO basic rates?! */
8376+ if (unlikely(!bss->rate_bas)) {
8377+ printk("%s: strange peer "MACSTR" with empty rate set "
8378+ "- skipped\n",
8379+ adev->ndev->name, MAC(bss->address));
8380+ continue;
8381+ }
8382+
8383+ /* do we support all basic rates of this peer? */
8384+ if ((bss->rate_bas & adev->rate_oper) != bss->rate_bas) {
8385+/* we probably need to have all rates as operational rates,
8386+ even in case of an 11M-only configuration */
8387+#ifdef THIS_IS_TROUBLESOME
8388+ printk("%s: peer "MACSTR": incompatible basic rates "
8389+ "(AP requests 0x%04X, we have 0x%04X) "
8390+ "- skipped\n",
8391+ adev->ndev->name, MAC(bss->address),
8392+ bss->rate_bas, adev->rate_oper);
8393+ continue;
8394+#else
8395+ printk("%s: peer "MACSTR": incompatible basic rates "
8396+ "(AP requests 0x%04X, we have 0x%04X). "
8397+ "Considering anyway...\n",
8398+ adev->ndev->name, MAC(bss->address),
8399+ bss->rate_bas, adev->rate_oper);
8400+#endif
8401+ }
8402+
8403+ if ( !(adev->reg_dom_chanmask & (1<<(bss->channel-1))) ) {
8404+ printk("%s: warning: peer "MACSTR" is on channel %d "
8405+ "outside of channel range of current "
8406+ "regulatory domain - couldn't join "
8407+ "even if other settings match. "
8408+ "You might want to adapt your config\n",
8409+ adev->ndev->name, MAC(bss->address),
8410+ bss->channel);
8411+ continue; /* keep looking */
8412+ }
8413+
8414+ if (!adev->essid_active || !strcmp(bss->essid, adev->essid)) {
8415+ log(L_ASSOC,
8416+ "found station with matching ESSID! ('%s' "
8417+ "station, '%s' config)\n",
8418+ bss->essid,
8419+ (adev->essid_active) ? adev->essid : "[any]");
8420+ /* TODO: continue looking for peer with better SNR */
8421+ bss->used = CLIENT_JOIN_CANDIDATE;
8422+ idx_found = i;
8423+
8424+ /* stop searching if this station is
8425+ * on the current channel, otherwise
8426+ * keep looking for an even better match */
8427+ if (bss->channel == adev->channel)
8428+ break;
8429+ } else
8430+ if (is_hidden_essid(bss->essid)) {
8431+ /* hmm, station with empty or single-space SSID:
8432+ * using hidden SSID broadcast?
8433+ */
8434+ /* This behaviour is broken: which AP from zillion
8435+ ** of APs with hidden SSID you'd try?
8436+ ** We should use Probe requests to get Probe responses
8437+ ** and check for real SSID (are those never hidden?) */
8438+ bss->used = CLIENT_JOIN_CANDIDATE;
8439+ if (idx_found == -1)
8440+ idx_found = i;
8441+ log(L_ASSOC, "found station with empty or "
8442+ "single-space (hidden) SSID, considering "
8443+ "for assoc attempt\n");
8444+ /* ...and keep looking for better matches */
8445+ } else {
8446+ log(L_ASSOC, "ESSID doesn't match! ('%s' "
8447+ "station, '%s' config)\n",
8448+ bss->essid,
8449+ (adev->essid_active) ? adev->essid : "[any]");
8450+ }
8451+ }
8452+
8453+ /* TODO: iterate thru join candidates instead */
8454+ /* TODO: rescan if not associated within some timeout */
8455+ if (idx_found != -1) {
8456+ char *essid_src;
8457+ size_t essid_len;
8458+
8459+ bss = &adev->sta_list[idx_found];
8460+ adev->ap_client = bss;
8461+
8462+ if (is_hidden_essid(bss->essid)) {
8463+ /* if the ESSID of the station we found is empty
8464+ * (no broadcast), then use user-configured ESSID
8465+ * instead */
8466+ essid_src = adev->essid;
8467+ essid_len = adev->essid_len;
8468+ } else {
8469+ essid_src = bss->essid;
8470+ essid_len = strlen(bss->essid);
8471+ }
8472+
8473+ acx_update_capabilities(adev);
8474+
8475+ memcpy(adev->essid_for_assoc, essid_src, essid_len);
8476+ adev->essid_for_assoc[essid_len] = '\0';
8477+ adev->channel = bss->channel;
8478+ MAC_COPY(adev->bssid, bss->bssid);
8479+
8480+ bss->rate_cfg = (bss->rate_cap & adev->rate_oper);
8481+ bss->rate_cur = 1 << lowest_bit(bss->rate_cfg);
8482+ bss->rate_100 = acx_rate111to100(bss->rate_cur);
8483+
8484+ acxlog_mac(L_ASSOC,
8485+ "matching station found: ", adev->bssid, ", joining\n");
8486+
8487+ /* TODO: do we need to switch to the peer's channel first? */
8488+
8489+ if (ACX_MODE_0_ADHOC == adev->mode) {
8490+ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED);
8491+ } else {
8492+ acx_l_transmit_authen1(adev);
8493+ acx_set_status(adev, ACX_STATUS_2_WAIT_AUTH);
8494+ }
8495+ } else { /* idx_found == -1 */
8496+ /* uh oh, no station found in range */
8497+ if (ACX_MODE_0_ADHOC == adev->mode) {
8498+ printk("%s: no matching station found in range, "
8499+ "generating our own IBSS instead\n",
8500+ adev->ndev->name);
8501+ /* we do it the HostAP way: */
8502+ MAC_COPY(adev->bssid, adev->dev_addr);
8503+ adev->bssid[0] |= 0x02; /* 'local assigned addr' bit */
8504+ /* add IBSS bit to our caps... */
8505+ acx_update_capabilities(adev);
8506+ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED);
8507+ /* In order to cmd_join be called below */
8508+ idx_found = 0;
8509+ } else {
8510+ /* we shall scan again, AP can be
8511+ ** just temporarily powered off */
8512+ log(L_ASSOC,
8513+ "no matching station found in range yet\n");
8514+ acx_set_status(adev, ACX_STATUS_1_SCANNING);
8515+ result = NOT_OK;
8516+ }
8517+ }
8518+
8519+ acx_unlock(adev, flags);
8520+
8521+ if (idx_found != -1) {
8522+ if (ACX_MODE_0_ADHOC == adev->mode) {
8523+ /* need to update channel in beacon template */
8524+ SET_BIT(adev->set_mask, SET_TEMPLATES);
8525+ if (ACX_STATE_IFACE_UP & adev->dev_state_mask)
8526+ acx_s_update_card_settings(adev);
8527+ }
8528+ /* Inform firmware on our decision to start or join BSS */
8529+ acx_s_cmd_join_bssid(adev, adev->bssid);
8530+ }
8531+
8532+end:
8533+ FN_EXIT1(result);
8534+ return result;
8535+}
8536+
8537+
8538+/***********************************************************************
8539+** acx_s_read_fw
8540+**
8541+** Loads a firmware image
8542+**
8543+** Returns:
8544+** 0 unable to load file
8545+** pointer to firmware success
8546+*/
8547+firmware_image_t*
8548+acx_s_read_fw(struct device *dev, const char *file, u32 *size)
8549+{
8550+ firmware_image_t *res;
8551+ const struct firmware *fw_entry;
8552+
8553+ res = NULL;
8554+ log(L_INIT, "requesting firmware image '%s'\n", file);
8555+ if (!request_firmware(&fw_entry, file, dev)) {
8556+ *size = 8;
8557+ if (fw_entry->size >= 8)
8558+ *size = 8 + le32_to_cpu(*(u32 *)(fw_entry->data + 4));
8559+ if (fw_entry->size != *size) {
8560+ printk("acx: firmware size does not match "
8561+ "firmware header: %d != %d, "
8562+ "aborting fw upload\n",
8563+ (int) fw_entry->size, (int) *size);
8564+ goto release_ret;
8565+ }
8566+ res = vmalloc(*size);
8567+ if (!res) {
8568+ printk("acx: no memory for firmware "
8569+ "(%u bytes)\n", *size);
8570+ goto release_ret;
8571+ }
8572+ memcpy(res, fw_entry->data, fw_entry->size);
8573+release_ret:
8574+ release_firmware(fw_entry);
8575+ return res;
8576+ }
8577+ printk("acx: firmware image '%s' was not provided. "
8578+ "Check your hotplug scripts\n", file);
8579+
8580+ /* checksum will be verified in write_fw, so don't bother here */
8581+ return res;
8582+}
8583+
8584+
8585+/***********************************************************************
8586+** acx_s_set_wepkey
8587+*/
8588+static void
8589+acx100_s_set_wepkey(acx_device_t *adev)
8590+{
8591+ ie_dot11WEPDefaultKey_t dk;
8592+ int i;
8593+
8594+ for (i = 0; i < DOT11_MAX_DEFAULT_WEP_KEYS; i++) {
8595+ if (adev->wep_keys[i].size != 0) {
8596+ log(L_INIT, "setting WEP key: %d with "
8597+ "total size: %d\n", i, (int) adev->wep_keys[i].size);
8598+ dk.action = 1;
8599+ dk.keySize = adev->wep_keys[i].size;
8600+ dk.defaultKeyNum = i;
8601+ memcpy(dk.key, adev->wep_keys[i].key, dk.keySize);
8602+ acx_s_configure(adev, &dk, ACX100_IE_DOT11_WEP_DEFAULT_KEY_WRITE);
8603+ }
8604+ }
8605+}
8606+
8607+static void
8608+acx111_s_set_wepkey(acx_device_t *adev)
8609+{
8610+ acx111WEPDefaultKey_t dk;
8611+ int i;
8612+
8613+ for (i = 0; i < DOT11_MAX_DEFAULT_WEP_KEYS; i++) {
8614+ if (adev->wep_keys[i].size != 0) {
8615+ log(L_INIT, "setting WEP key: %d with "
8616+ "total size: %d\n", i, (int) adev->wep_keys[i].size);
8617+ memset(&dk, 0, sizeof(dk));
8618+ dk.action = cpu_to_le16(1); /* "add key"; yes, that's a 16bit value */
8619+ dk.keySize = adev->wep_keys[i].size;
8620+
8621+ /* are these two lines necessary? */
8622+ dk.type = 0; /* default WEP key */
8623+ dk.index = 0; /* ignored when setting default key */
8624+
8625+ dk.defaultKeyNum = i;
8626+ memcpy(dk.key, adev->wep_keys[i].key, dk.keySize);
8627+ acx_s_issue_cmd(adev, ACX1xx_CMD_WEP_MGMT, &dk, sizeof(dk));
8628+ }
8629+ }
8630+}
8631+
8632+static void
8633+acx_s_set_wepkey(acx_device_t *adev)
8634+{
8635+ if (IS_ACX111(adev))
8636+ acx111_s_set_wepkey(adev);
8637+ else
8638+ acx100_s_set_wepkey(adev);
8639+}
8640+
8641+
8642+/***********************************************************************
8643+** acx100_s_init_wep
8644+**
8645+** FIXME: this should probably be moved into the new card settings
8646+** management, but since we're also modifying the memory map layout here
8647+** due to the WEP key space we want, we should take care...
8648+*/
8649+static int
8650+acx100_s_init_wep(acx_device_t *adev)
8651+{
8652+ acx100_ie_wep_options_t options;
8653+ ie_dot11WEPDefaultKeyID_t dk;
8654+ acx_ie_memmap_t pt;
8655+ int res = NOT_OK;
8656+
8657+ FN_ENTER;
8658+
8659+ if (OK != acx_s_interrogate(adev, &pt, ACX1xx_IE_MEMORY_MAP)) {
8660+ goto fail;
8661+ }
8662+
8663+ log(L_DEBUG, "CodeEnd:%X\n", pt.CodeEnd);
8664+
8665+ pt.WEPCacheStart = cpu_to_le32(le32_to_cpu(pt.CodeEnd) + 0x4);
8666+ pt.WEPCacheEnd = cpu_to_le32(le32_to_cpu(pt.CodeEnd) + 0x4);
8667+
8668+ if (OK != acx_s_configure(adev, &pt, ACX1xx_IE_MEMORY_MAP)) {
8669+ goto fail;
8670+ }
8671+
8672+ /* let's choose maximum setting: 4 default keys, plus 10 other keys: */
8673+ options.NumKeys = cpu_to_le16(DOT11_MAX_DEFAULT_WEP_KEYS + 10);
8674+ options.WEPOption = 0x00;
8675+
8676+ log(L_ASSOC, "%s: writing WEP options\n", __func__);
8677+ acx_s_configure(adev, &options, ACX100_IE_WEP_OPTIONS);
8678+
8679+ acx100_s_set_wepkey(adev);
8680+
8681+ if (adev->wep_keys[adev->wep_current_index].size != 0) {
8682+ log(L_ASSOC, "setting active default WEP key number: %d\n",
8683+ adev->wep_current_index);
8684+ dk.KeyID = adev->wep_current_index;
8685+ acx_s_configure(adev, &dk, ACX1xx_IE_DOT11_WEP_DEFAULT_KEY_SET); /* 0x1010 */
8686+ }
8687+ /* FIXME!!! wep_key_struct is filled nowhere! But adev
8688+ * is initialized to 0, and we don't REALLY need those keys either */
8689+/* for (i = 0; i < 10; i++) {
8690+ if (adev->wep_key_struct[i].len != 0) {
8691+ MAC_COPY(wep_mgmt.MacAddr, adev->wep_key_struct[i].addr);
8692+ wep_mgmt.KeySize = cpu_to_le16(adev->wep_key_struct[i].len);
8693+ memcpy(&wep_mgmt.Key, adev->wep_key_struct[i].key, le16_to_cpu(wep_mgmt.KeySize));
8694+ wep_mgmt.Action = cpu_to_le16(1);
8695+ log(L_ASSOC, "writing WEP key %d (len %d)\n", i, le16_to_cpu(wep_mgmt.KeySize));
8696+ if (OK == acx_s_issue_cmd(adev, ACX1xx_CMD_WEP_MGMT, &wep_mgmt, sizeof(wep_mgmt))) {
8697+ adev->wep_key_struct[i].index = i;
8698+ }
8699+ }
8700+ }
8701+*/
8702+
8703+ /* now retrieve the updated WEPCacheEnd pointer... */
8704+ if (OK != acx_s_interrogate(adev, &pt, ACX1xx_IE_MEMORY_MAP)) {
8705+ printk("%s: ACX1xx_IE_MEMORY_MAP read #2 FAILED\n",
8706+ adev->ndev->name);
8707+ goto fail;
8708+ }
8709+ /* ...and tell it to start allocating templates at that location */
8710+ /* (no endianness conversion needed) */
8711+ pt.PacketTemplateStart = pt.WEPCacheEnd;
8712+
8713+ if (OK != acx_s_configure(adev, &pt, ACX1xx_IE_MEMORY_MAP)) {
8714+ printk("%s: ACX1xx_IE_MEMORY_MAP write #2 FAILED\n",
8715+ adev->ndev->name);
8716+ goto fail;
8717+ }
8718+ res = OK;
8719+
8720+fail:
8721+ FN_EXIT1(res);
8722+ return res;
8723+}
8724+
8725+
8726+static int
8727+acx_s_init_max_template_generic(acx_device_t *adev, unsigned int len, unsigned int cmd)
8728+{
8729+ int res;
8730+ union {
8731+ acx_template_nullframe_t null;
8732+ acx_template_beacon_t b;
8733+ acx_template_tim_t tim;
8734+ acx_template_probereq_t preq;
8735+ acx_template_proberesp_t presp;
8736+ } templ;
8737+
8738+ memset(&templ, 0, len);
8739+ templ.null.size = cpu_to_le16(len - 2);
8740+ res = acx_s_issue_cmd(adev, cmd, &templ, len);
8741+ return res;
8742+}
8743+
8744+static inline int
8745+acx_s_init_max_null_data_template(acx_device_t *adev)
8746+{
8747+ return acx_s_init_max_template_generic(
8748+ adev, sizeof(acx_template_nullframe_t), ACX1xx_CMD_CONFIG_NULL_DATA
8749+ );
8750+}
8751+
8752+static inline int
8753+acx_s_init_max_beacon_template(acx_device_t *adev)
8754+{
8755+ return acx_s_init_max_template_generic(
8756+ adev, sizeof(acx_template_beacon_t), ACX1xx_CMD_CONFIG_BEACON
8757+ );
8758+}
8759+
8760+static inline int
8761+acx_s_init_max_tim_template(acx_device_t *adev)
8762+{
8763+ return acx_s_init_max_template_generic(
8764+ adev, sizeof(acx_template_tim_t), ACX1xx_CMD_CONFIG_TIM
8765+ );
8766+}
8767+
8768+static inline int
8769+acx_s_init_max_probe_response_template(acx_device_t *adev)
8770+{
8771+ return acx_s_init_max_template_generic(
8772+ adev, sizeof(acx_template_proberesp_t), ACX1xx_CMD_CONFIG_PROBE_RESPONSE
8773+ );
8774+}
8775+
8776+static inline int
8777+acx_s_init_max_probe_request_template(acx_device_t *adev)
8778+{
8779+ return acx_s_init_max_template_generic(
8780+ adev, sizeof(acx_template_probereq_t), ACX1xx_CMD_CONFIG_PROBE_REQUEST
8781+ );
8782+}
8783+
8784+/***********************************************************************
8785+** acx_s_set_tim_template
8786+**
8787+** FIXME: In full blown driver we will regularly update partial virtual bitmap
8788+** by calling this function
8789+** (it can be done by irq handler on each DTIM irq or by timer...)
8790+
8791+[802.11 7.3.2.6] TIM information element:
8792+- 1 EID
8793+- 1 Length
8794+1 1 DTIM Count
8795+ indicates how many beacons (including this) appear before next DTIM
8796+ (0=this one is a DTIM)
8797+2 1 DTIM Period
8798+ number of beacons between successive DTIMs
8799+ (0=reserved, 1=all TIMs are DTIMs, 2=every other, etc)
8800+3 1 Bitmap Control
8801+ bit0: Traffic Indicator bit associated with Assoc ID 0 (Bcast AID?)
8802+ set to 1 in TIM elements with a value of 0 in the DTIM Count field
8803+ when one or more broadcast or multicast frames are buffered at the AP.
8804+ bit1-7: Bitmap Offset (logically Bitmap_Offset = Bitmap_Control & 0xFE).
8805+4 n Partial Virtual Bitmap
8806+ Visible part of traffic-indication bitmap.
8807+ Full bitmap consists of 2008 bits (251 octets) such that bit number N
8808+ (0<=N<=2007) in the bitmap corresponds to bit number (N mod 8)
8809+ in octet number N/8 where the low-order bit of each octet is bit0,
8810+ and the high order bit is bit7.
8811+ Each set bit in virtual bitmap corresponds to traffic buffered by AP
8812+ for a specific station (with corresponding AID?).
8813+ Partial Virtual Bitmap shows a part of bitmap which has non-zero.
8814+ Bitmap Offset is a number of skipped zero octets (see above).
8815+ 'Missing' octets at the tail are also assumed to be zero.
8816+ Example: Length=6, Bitmap_Offset=2, Partial_Virtual_Bitmap=55 55 55
8817+ This means that traffic-indication bitmap is:
8818+ 00000000 00000000 01010101 01010101 01010101 00000000 00000000...
8819+ (is bit0 in the map is always 0 and real value is in Bitmap Control bit0?)
8820+*/
8821+static int
8822+acx_s_set_tim_template(acx_device_t *adev)
8823+{
8824+/* For now, configure smallish test bitmap, all zero ("no pending data") */
8825+ enum { bitmap_size = 5 };
8826+
8827+ acx_template_tim_t t;
8828+ int result;
8829+
8830+ FN_ENTER;
8831+
8832+ memset(&t, 0, sizeof(t));
8833+ t.size = 5 + bitmap_size; /* eid+len+count+period+bmap_ctrl + bmap */
8834+ t.tim_eid = WLAN_EID_TIM;
8835+ t.len = 3 + bitmap_size; /* count+period+bmap_ctrl + bmap */
8836+ result = acx_s_issue_cmd(adev, ACX1xx_CMD_CONFIG_TIM, &t, sizeof(t));
8837+ FN_EXIT1(result);
8838+ return result;
8839+}
8840+
8841+
8842+/***********************************************************************
8843+** acx_fill_beacon_or_proberesp_template
8844+**
8845+** For frame format info, please see 802.11-1999.pdf item 7.2.3.9 and below!!
8846+**
8847+** NB: we use the fact that
8848+** struct acx_template_proberesp and struct acx_template_beacon are the same
8849+** (well, almost...)
8850+**
8851+** [802.11] Beacon's body consist of these IEs:
8852+** 1 Timestamp
8853+** 2 Beacon interval
8854+** 3 Capability information
8855+** 4 SSID
8856+** 5 Supported rates (up to 8 rates)
8857+** 6 FH Parameter Set (frequency-hopping PHYs only)
8858+** 7 DS Parameter Set (direct sequence PHYs only)
8859+** 8 CF Parameter Set (only if PCF is supported)
8860+** 9 IBSS Parameter Set (ad-hoc only)
8861+**
8862+** Beacon only:
8863+** 10 TIM (AP only) (see 802.11 7.3.2.6)
8864+** 11 Country Information (802.11d)
8865+** 12 FH Parameters (802.11d)
8866+** 13 FH Pattern Table (802.11d)
8867+** ... (?!! did not yet find relevant PDF file... --vda)
8868+** 19 ERP Information (extended rate PHYs)
8869+** 20 Extended Supported Rates (if more than 8 rates)
8870+**
8871+** Proberesp only:
8872+** 10 Country information (802.11d)
8873+** 11 FH Parameters (802.11d)
8874+** 12 FH Pattern Table (802.11d)
8875+** 13-n Requested information elements (802.11d)
8876+** ????
8877+** 18 ERP Information (extended rate PHYs)
8878+** 19 Extended Supported Rates (if more than 8 rates)
8879+*/
8880+static int
8881+acx_fill_beacon_or_proberesp_template(acx_device_t *adev,
8882+ struct acx_template_beacon *templ,
8883+ u16 fc /* in host order! */)
8884+{
8885+ int len;
8886+ u8 *p;
8887+
8888+ FN_ENTER;
8889+
8890+ memset(templ, 0, sizeof(*templ));
8891+ MAC_BCAST(templ->da);
8892+ MAC_COPY(templ->sa, adev->dev_addr);
8893+ MAC_COPY(templ->bssid, adev->bssid);
8894+
8895+ templ->beacon_interval = cpu_to_le16(adev->beacon_interval);
8896+ acx_update_capabilities(adev);
8897+ templ->cap = cpu_to_le16(adev->capabilities);
8898+
8899+ p = templ->variable;
8900+ p = wlan_fill_ie_ssid(p, adev->essid_len, adev->essid);
8901+ p = wlan_fill_ie_rates(p, adev->rate_supported_len, adev->rate_supported);
8902+ p = wlan_fill_ie_ds_parms(p, adev->channel);
8903+ /* NB: should go AFTER tim, but acx seem to keep tim last always */
8904+ p = wlan_fill_ie_rates_ext(p, adev->rate_supported_len, adev->rate_supported);
8905+
8906+ switch (adev->mode) {
8907+ case ACX_MODE_0_ADHOC:
8908+ /* ATIM window */
8909+ p = wlan_fill_ie_ibss_parms(p, 0); break;
8910+ case ACX_MODE_3_AP:
8911+ /* TIM IE is set up as separate template */
8912+ break;
8913+ }
8914+
8915+ len = p - (u8*)templ;
8916+ templ->fc = cpu_to_le16(WF_FTYPE_MGMT | fc);
8917+ /* - 2: do not count 'u16 size' field */
8918+ templ->size = cpu_to_le16(len - 2);
8919+
8920+ FN_EXIT1(len);
8921+ return len;
8922+}
8923+
8924+
8925+#if POWER_SAVE_80211
8926+/***********************************************************************
8927+** acx_s_set_null_data_template
8928+*/
8929+static int
8930+acx_s_set_null_data_template(acx_device_t *adev)
8931+{
8932+ struct acx_template_nullframe b;
8933+ int result;
8934+
8935+ FN_ENTER;
8936+
8937+ /* memset(&b, 0, sizeof(b)); not needed, setting all members */
8938+
8939+ b.size = cpu_to_le16(sizeof(b) - 2);
8940+ b.hdr.fc = WF_FTYPE_MGMTi | WF_FSTYPE_NULLi;
8941+ b.hdr.dur = 0;
8942+ MAC_BCAST(b.hdr.a1);
8943+ MAC_COPY(b.hdr.a2, adev->dev_addr);
8944+ MAC_COPY(b.hdr.a3, adev->bssid);
8945+ b.hdr.seq = 0;
8946+
8947+ result = acx_s_issue_cmd(adev, ACX1xx_CMD_CONFIG_NULL_DATA, &b, sizeof(b));
8948+
8949+ FN_EXIT1(result);
8950+ return result;
8951+}
8952+#endif
8953+
8954+
8955+/***********************************************************************
8956+** acx_s_set_beacon_template
8957+*/
8958+static int
8959+acx_s_set_beacon_template(acx_device_t *adev)
8960+{
8961+ struct acx_template_beacon bcn;
8962+ int len, result;
8963+
8964+ FN_ENTER;
8965+
8966+ len = acx_fill_beacon_or_proberesp_template(adev, &bcn, WF_FSTYPE_BEACON);
8967+ result = acx_s_issue_cmd(adev, ACX1xx_CMD_CONFIG_BEACON, &bcn, len);
8968+
8969+ FN_EXIT1(result);
8970+ return result;
8971+}
8972+
8973+
8974+/***********************************************************************
8975+** acx_s_set_probe_response_template
8976+*/
8977+static int
8978+acx_s_set_probe_response_template(acx_device_t *adev)
8979+{
8980+ struct acx_template_proberesp pr;
8981+ int len, result;
8982+
8983+ FN_ENTER;
8984+
8985+ len = acx_fill_beacon_or_proberesp_template(adev, &pr, WF_FSTYPE_PROBERESP);
8986+ result = acx_s_issue_cmd(adev, ACX1xx_CMD_CONFIG_PROBE_RESPONSE, &pr, len);
8987+
8988+ FN_EXIT1(result);
8989+ return result;
8990+}
8991+
8992+
8993+/***********************************************************************
8994+** acx_s_init_packet_templates()
8995+**
8996+** NOTE: order is very important here, to have a correct memory layout!
8997+** init templates: max Probe Request (station mode), max NULL data,
8998+** max Beacon, max TIM, max Probe Response.
8999+*/
9000+static int
9001+acx_s_init_packet_templates(acx_device_t *adev)
9002+{
9003+ acx_ie_memmap_t mm; /* ACX100 only */
9004+ int result = NOT_OK;
9005+
9006+ FN_ENTER;
9007+
9008+ log(L_DEBUG|L_INIT, "initializing max packet templates\n");
9009+
9010+ if (OK != acx_s_init_max_probe_request_template(adev))
9011+ goto failed;
9012+
9013+ if (OK != acx_s_init_max_null_data_template(adev))
9014+ goto failed;
9015+
9016+ if (OK != acx_s_init_max_beacon_template(adev))
9017+ goto failed;
9018+
9019+ if (OK != acx_s_init_max_tim_template(adev))
9020+ goto failed;
9021+
9022+ if (OK != acx_s_init_max_probe_response_template(adev))
9023+ goto failed;
9024+
9025+ if (IS_ACX111(adev)) {
9026+ /* ACX111 doesn't need the memory map magic below,
9027+ * and the other templates will be set later (acx_start) */
9028+ result = OK;
9029+ goto success;
9030+ }
9031+
9032+ /* ACX100 will have its TIM template set,
9033+ * and we also need to update the memory map */
9034+
9035+ if (OK != acx_s_set_tim_template(adev))
9036+ goto failed_acx100;
9037+
9038+ log(L_DEBUG, "sizeof(memmap)=%d bytes\n", (int)sizeof(mm));
9039+
9040+ if (OK != acx_s_interrogate(adev, &mm, ACX1xx_IE_MEMORY_MAP))
9041+ goto failed_acx100;
9042+
9043+ mm.QueueStart = cpu_to_le32(le32_to_cpu(mm.PacketTemplateEnd) + 4);
9044+ if (OK != acx_s_configure(adev, &mm, ACX1xx_IE_MEMORY_MAP))
9045+ goto failed_acx100;
9046+
9047+ result = OK;
9048+ goto success;
9049+
9050+failed_acx100:
9051+ log(L_DEBUG|L_INIT,
9052+ /* "cb=0x%X\n" */
9053+ "ACXMemoryMap:\n"
9054+ ".CodeStart=0x%X\n"
9055+ ".CodeEnd=0x%X\n"
9056+ ".WEPCacheStart=0x%X\n"
9057+ ".WEPCacheEnd=0x%X\n"
9058+ ".PacketTemplateStart=0x%X\n"
9059+ ".PacketTemplateEnd=0x%X\n",
9060+ /* len, */
9061+ le32_to_cpu(mm.CodeStart),
9062+ le32_to_cpu(mm.CodeEnd),
9063+ le32_to_cpu(mm.WEPCacheStart),
9064+ le32_to_cpu(mm.WEPCacheEnd),
9065+ le32_to_cpu(mm.PacketTemplateStart),
9066+ le32_to_cpu(mm.PacketTemplateEnd));
9067+
9068+failed:
9069+ printk("%s: %s() FAILED\n", adev->ndev->name, __func__);
9070+
9071+success:
9072+ FN_EXIT1(result);
9073+ return result;
9074+}
9075+
9076+
9077+/***********************************************************************
9078+*/
9079+static int
9080+acx_s_set_probe_request_template(acx_device_t *adev)
9081+{
9082+ struct acx_template_probereq probereq;
9083+ char *p;
9084+ int res;
9085+ int frame_len;
9086+
9087+ FN_ENTER;
9088+
9089+ memset(&probereq, 0, sizeof(probereq));
9090+
9091+ probereq.fc = WF_FTYPE_MGMTi | WF_FSTYPE_PROBEREQi;
9092+ MAC_BCAST(probereq.da);
9093+ MAC_COPY(probereq.sa, adev->dev_addr);
9094+ MAC_BCAST(probereq.bssid);
9095+
9096+ p = probereq.variable;
9097+ p = wlan_fill_ie_ssid(p, adev->essid_len, adev->essid);
9098+ p = wlan_fill_ie_rates(p, adev->rate_supported_len, adev->rate_supported);
9099+ p = wlan_fill_ie_rates_ext(p, adev->rate_supported_len, adev->rate_supported);
9100+ frame_len = p - (char*)&probereq;
9101+ probereq.size = cpu_to_le16(frame_len - 2);
9102+
9103+ res = acx_s_issue_cmd(adev, ACX1xx_CMD_CONFIG_PROBE_REQUEST, &probereq, frame_len);
9104+ FN_EXIT0;
9105+ return res;
9106+}
9107+
9108+
9109+/***********************************************************************
9110+** acx_s_init_mac
9111+*/
9112+int
9113+acx_s_init_mac(acx_device_t *adev)
9114+{
9115+ int result = NOT_OK;
9116+
9117+ FN_ENTER;
9118+
9119+ if (IS_ACX111(adev)) {
9120+ adev->ie_len = acx111_ie_len;
9121+ adev->ie_len_dot11 = acx111_ie_len_dot11;
9122+ } else {
9123+ adev->ie_len = acx100_ie_len;
9124+ adev->ie_len_dot11 = acx100_ie_len_dot11;
9125+ }
9126+
9127+#if defined (ACX_MEM)
9128+ adev->memblocksize = 256; /* 256 is default */
9129+ /* try to load radio for both ACX100 and ACX111, since both
9130+ * chips have at least some firmware versions making use of an
9131+ * external radio module */
9132+ acxmem_s_upload_radio(adev);
9133+#else
9134+ if (IS_PCI(adev)) {
9135+ adev->memblocksize = 256; /* 256 is default */
9136+ /* try to load radio for both ACX100 and ACX111, since both
9137+ * chips have at least some firmware versions making use of an
9138+ * external radio module */
9139+ acxpci_s_upload_radio(adev);
9140+ } else {
9141+ adev->memblocksize = 128;
9142+ }
9143+#endif
9144+
9145+ if (IS_ACX111(adev)) {
9146+ /* for ACX111, the order is different from ACX100
9147+ 1. init packet templates
9148+ 2. create station context and create dma regions
9149+ 3. init wep default keys
9150+ */
9151+ if (OK != acx_s_init_packet_templates(adev))
9152+ goto fail;
9153+ if (OK != acx111_s_create_dma_regions(adev)) {
9154+ printk("%s: acx111_create_dma_regions FAILED\n",
9155+ adev->ndev->name);
9156+ goto fail;
9157+ }
9158+ } else {
9159+ if (OK != acx100_s_init_wep(adev))
9160+ goto fail;
9161+ if (OK != acx_s_init_packet_templates(adev))
9162+ goto fail;
9163+ if (OK != acx100_s_create_dma_regions(adev)) {
9164+ printk("%s: acx100_create_dma_regions FAILED\n",
9165+ adev->ndev->name);
9166+ goto fail;
9167+ }
9168+ }
9169+
9170+ MAC_COPY(adev->ndev->dev_addr, adev->dev_addr);
9171+ result = OK;
9172+
9173+fail:
9174+ if (result)
9175+ printk("acx: init_mac() FAILED\n");
9176+ FN_EXIT1(result);
9177+ return result;
9178+}
9179+
9180+
9181+void
9182+acx_s_set_sane_reg_domain(acx_device_t *adev, int do_set)
9183+{
9184+ unsigned mask;
9185+
9186+ unsigned int i;
9187+
9188+ for (i = 0; i < sizeof(acx_reg_domain_ids); i++)
9189+ if (acx_reg_domain_ids[i] == adev->reg_dom_id)
9190+ break;
9191+
9192+ if (sizeof(acx_reg_domain_ids) == i) {
9193+ log(L_INIT, "Invalid or unsupported regulatory domain"
9194+ " 0x%02X specified, falling back to FCC (USA)!"
9195+ " Please report if this sounds fishy!\n",
9196+ adev->reg_dom_id);
9197+ i = 0;
9198+ adev->reg_dom_id = acx_reg_domain_ids[i];
9199+
9200+ /* since there was a mismatch, we need to force updating */
9201+ do_set = 1;
9202+ }
9203+
9204+ if (do_set) {
9205+ acx_ie_generic_t dom;
9206+ dom.m.bytes[0] = adev->reg_dom_id;
9207+ acx_s_configure(adev, &dom, ACX1xx_IE_DOT11_CURRENT_REG_DOMAIN);
9208+ }
9209+
9210+ adev->reg_dom_chanmask = reg_domain_channel_masks[i];
9211+
9212+ mask = (1 << (adev->channel - 1));
9213+ if (!(adev->reg_dom_chanmask & mask)) {
9214+ /* hmm, need to adjust our channel to reside within domain */
9215+ mask = 1;
9216+ for (i = 1; i <= 14; i++) {
9217+ if (adev->reg_dom_chanmask & mask) {
9218+ printk("%s: adjusting selected channel from %d "
9219+ "to %d due to new regulatory domain\n",
9220+ adev->ndev->name, adev->channel, i);
9221+ adev->channel = i;
9222+ break;
9223+ }
9224+ mask <<= 1;
9225+ }
9226+ }
9227+}
9228+
9229+
9230+#if POWER_SAVE_80211
9231+static void
9232+acx_s_update_80211_powersave_mode(acx_device_t *adev)
9233+{
9234+ /* merge both structs in a union to be able to have common code */
9235+ union {
9236+ acx111_ie_powersave_t acx111;
9237+ acx100_ie_powersave_t acx100;
9238+ } pm;
9239+
9240+ /* change 802.11 power save mode settings */
9241+ log(L_INIT, "updating 802.11 power save mode settings: "
9242+ "wakeup_cfg 0x%02X, listen interval %u, "
9243+ "options 0x%02X, hangover period %u, "
9244+ "enhanced_ps_transition_time %u\n",
9245+ adev->ps_wakeup_cfg, adev->ps_listen_interval,
9246+ adev->ps_options, adev->ps_hangover_period,
9247+ adev->ps_enhanced_transition_time);
9248+ acx_s_interrogate(adev, &pm, ACX1xx_IE_POWER_MGMT);
9249+ log(L_INIT, "Previous PS mode settings: wakeup_cfg 0x%02X, "
9250+ "listen interval %u, options 0x%02X, "
9251+ "hangover period %u, "
9252+ "enhanced_ps_transition_time %u, beacon_rx_time %u\n",
9253+ pm.acx111.wakeup_cfg,
9254+ pm.acx111.listen_interval,
9255+ pm.acx111.options,
9256+ pm.acx111.hangover_period,
9257+ IS_ACX111(adev) ?
9258+ pm.acx111.enhanced_ps_transition_time
9259+ : pm.acx100.enhanced_ps_transition_time,
9260+ IS_ACX111(adev) ?
9261+ pm.acx111.beacon_rx_time
9262+ : (u32)-1
9263+ );
9264+ pm.acx111.wakeup_cfg = adev->ps_wakeup_cfg;
9265+ pm.acx111.listen_interval = adev->ps_listen_interval;
9266+ pm.acx111.options = adev->ps_options;
9267+ pm.acx111.hangover_period = adev->ps_hangover_period;
9268+ if (IS_ACX111(adev)) {
9269+ pm.acx111.beacon_rx_time = cpu_to_le32(adev->ps_beacon_rx_time);
9270+ pm.acx111.enhanced_ps_transition_time = cpu_to_le32(adev->ps_enhanced_transition_time);
9271+ } else {
9272+ pm.acx100.enhanced_ps_transition_time = cpu_to_le16(adev->ps_enhanced_transition_time);
9273+ }
9274+ acx_s_configure(adev, &pm, ACX1xx_IE_POWER_MGMT);
9275+ acx_s_interrogate(adev, &pm, ACX1xx_IE_POWER_MGMT);
9276+ log(L_INIT, "wakeup_cfg: 0x%02X\n", pm.acx111.wakeup_cfg);
9277+ acx_s_msleep(40);
9278+ acx_s_interrogate(adev, &pm, ACX1xx_IE_POWER_MGMT);
9279+ log(L_INIT, "wakeup_cfg: 0x%02X\n", pm.acx111.wakeup_cfg);
9280+ log(L_INIT, "power save mode change %s\n",
9281+ (pm.acx111.wakeup_cfg & PS_CFG_PENDING) ? "FAILED" : "was successful");
9282+ /* FIXME: maybe verify via PS_CFG_PENDING bit here
9283+ * that power save mode change was successful. */
9284+ /* FIXME: we shouldn't trigger a scan immediately after
9285+ * fiddling with power save mode (since the firmware is sending
9286+ * a NULL frame then). */
9287+}
9288+#endif
9289+
9290+
9291+/***********************************************************************
9292+** acx_s_update_card_settings
9293+**
9294+** Applies accumulated changes in various adev->xxxx members
9295+** Called by ioctl commit handler, acx_start, acx_set_defaults,
9296+** acx_s_after_interrupt_task (if IRQ_CMD_UPDATE_CARD_CFG),
9297+*/
9298+static void
9299+acx111_s_sens_radio_16_17(acx_device_t *adev)
9300+{
9301+ u32 feature1, feature2;
9302+
9303+ if ((adev->sensitivity < 1) || (adev->sensitivity > 3)) {
9304+ printk("%s: invalid sensitivity setting (1..3), "
9305+ "setting to 1\n", adev->ndev->name);
9306+ adev->sensitivity = 1;
9307+ }
9308+ acx111_s_get_feature_config(adev, &feature1, &feature2);
9309+ CLEAR_BIT(feature1, FEATURE1_LOW_RX|FEATURE1_EXTRA_LOW_RX);
9310+ if (adev->sensitivity > 1)
9311+ SET_BIT(feature1, FEATURE1_LOW_RX);
9312+ if (adev->sensitivity > 2)
9313+ SET_BIT(feature1, FEATURE1_EXTRA_LOW_RX);
9314+ acx111_s_feature_set(adev, feature1, feature2);
9315+}
9316+
9317+
9318+void
9319+acx_s_update_card_settings(acx_device_t *adev)
9320+{
9321+ unsigned long flags;
9322+ unsigned int start_scan = 0;
9323+ int i;
9324+
9325+ FN_ENTER;
9326+
9327+ log(L_INIT, "get_mask 0x%08X, set_mask 0x%08X\n",
9328+ adev->get_mask, adev->set_mask);
9329+
9330+ /* Track dependencies betweed various settings */
9331+
9332+ if (adev->set_mask & (GETSET_MODE|GETSET_RESCAN|GETSET_WEP)) {
9333+ log(L_INIT, "important setting has been changed. "
9334+ "Need to update packet templates, too\n");
9335+ SET_BIT(adev->set_mask, SET_TEMPLATES);
9336+ }
9337+ if (adev->set_mask & GETSET_CHANNEL) {
9338+ /* This will actually tune RX/TX to the channel */
9339+ SET_BIT(adev->set_mask, GETSET_RX|GETSET_TX);
9340+ switch (adev->mode) {
9341+ case ACX_MODE_0_ADHOC:
9342+ case ACX_MODE_3_AP:
9343+ /* Beacons contain channel# - update them */
9344+ SET_BIT(adev->set_mask, SET_TEMPLATES);
9345+ }
9346+ switch (adev->mode) {
9347+ case ACX_MODE_0_ADHOC:
9348+ case ACX_MODE_2_STA:
9349+ start_scan = 1;
9350+ }
9351+ }
9352+
9353+ /* Apply settings */
9354+
9355+#ifdef WHY_SHOULD_WE_BOTHER /* imagine we were just powered off */
9356+ /* send a disassoc request in case it's required */
9357+ if (adev->set_mask & (GETSET_MODE|GETSET_RESCAN|GETSET_CHANNEL|GETSET_WEP)) {
9358+ if (ACX_MODE_2_STA == adev->mode) {
9359+ if (ACX_STATUS_4_ASSOCIATED == adev->status) {
9360+ log(L_ASSOC, "we were ASSOCIATED - "
9361+ "sending disassoc request\n");
9362+ acx_lock(adev, flags);
9363+ acx_l_transmit_disassoc(adev, NULL);
9364+ /* FIXME: deauth? */
9365+ acx_unlock(adev, flags);
9366+ }
9367+ /* need to reset some other stuff as well */
9368+ log(L_DEBUG, "resetting bssid\n");
9369+ MAC_ZERO(adev->bssid);
9370+ SET_BIT(adev->set_mask, SET_TEMPLATES|SET_STA_LIST);
9371+ start_scan = 1;
9372+ }
9373+ }
9374+#endif
9375+
9376+ if (adev->get_mask & GETSET_STATION_ID) {
9377+ u8 stationID[4 + ACX1xx_IE_DOT11_STATION_ID_LEN];
9378+ const u8 *paddr;
9379+
9380+ acx_s_interrogate(adev, &stationID, ACX1xx_IE_DOT11_STATION_ID);
9381+ paddr = &stationID[4];
9382+ for (i = 0; i < ETH_ALEN; i++) {
9383+ /* we copy the MAC address (reversed in
9384+ * the card) to the netdevice's MAC
9385+ * address, and on ifup it will be
9386+ * copied into iwadev->dev_addr */
9387+ adev->ndev->dev_addr[ETH_ALEN - 1 - i] = paddr[i];
9388+ }
9389+ CLEAR_BIT(adev->get_mask, GETSET_STATION_ID);
9390+ }
9391+
9392+ if (adev->get_mask & GETSET_SENSITIVITY) {
9393+ if ((RADIO_RFMD_11 == adev->radio_type)
9394+ || (RADIO_MAXIM_0D == adev->radio_type)
9395+ || (RADIO_RALINK_15 == adev->radio_type)) {
9396+ acx_s_read_phy_reg(adev, 0x30, &adev->sensitivity);
9397+ } else {
9398+ log(L_INIT, "don't know how to get sensitivity "
9399+ "for radio type 0x%02X\n", adev->radio_type);
9400+ adev->sensitivity = 0;
9401+ }
9402+ log(L_INIT, "got sensitivity value %u\n", adev->sensitivity);
9403+
9404+ CLEAR_BIT(adev->get_mask, GETSET_SENSITIVITY);
9405+ }
9406+
9407+ if (adev->get_mask & GETSET_ANTENNA) {
9408+ u8 antenna[4 + ACX1xx_IE_DOT11_CURRENT_ANTENNA_LEN];
9409+
9410+ memset(antenna, 0, sizeof(antenna));
9411+ acx_s_interrogate(adev, antenna, ACX1xx_IE_DOT11_CURRENT_ANTENNA);
9412+ adev->antenna = antenna[4];
9413+ log(L_INIT, "got antenna value 0x%02X\n", adev->antenna);
9414+ CLEAR_BIT(adev->get_mask, GETSET_ANTENNA);
9415+ }
9416+
9417+ if (adev->get_mask & GETSET_ED_THRESH) {
9418+ if (IS_ACX100(adev)) {
9419+ u8 ed_threshold[4 + ACX100_IE_DOT11_ED_THRESHOLD_LEN];
9420+
9421+ memset(ed_threshold, 0, sizeof(ed_threshold));
9422+ acx_s_interrogate(adev, ed_threshold, ACX100_IE_DOT11_ED_THRESHOLD);
9423+ adev->ed_threshold = ed_threshold[4];
9424+ } else {
9425+ log(L_INIT, "acx111 doesn't support ED\n");
9426+ adev->ed_threshold = 0;
9427+ }
9428+ log(L_INIT, "got Energy Detect (ED) threshold %u\n", adev->ed_threshold);
9429+ CLEAR_BIT(adev->get_mask, GETSET_ED_THRESH);
9430+ }
9431+
9432+ if (adev->get_mask & GETSET_CCA) {
9433+ if (IS_ACX100(adev)) {
9434+ u8 cca[4 + ACX1xx_IE_DOT11_CURRENT_CCA_MODE_LEN];
9435+
9436+ memset(cca, 0, sizeof(adev->cca));
9437+ acx_s_interrogate(adev, cca, ACX1xx_IE_DOT11_CURRENT_CCA_MODE);
9438+ adev->cca = cca[4];
9439+ } else {
9440+ log(L_INIT, "acx111 doesn't support CCA\n");
9441+ adev->cca = 0;
9442+ }
9443+ log(L_INIT, "got Channel Clear Assessment (CCA) value %u\n", adev->cca);
9444+ CLEAR_BIT(adev->get_mask, GETSET_CCA);
9445+ }
9446+
9447+ if (adev->get_mask & GETSET_REG_DOMAIN) {
9448+ acx_ie_generic_t dom;
9449+
9450+ acx_s_interrogate(adev, &dom, ACX1xx_IE_DOT11_CURRENT_REG_DOMAIN);
9451+ adev->reg_dom_id = dom.m.bytes[0];
9452+ acx_s_set_sane_reg_domain(adev, 0);
9453+ log(L_INIT, "got regulatory domain 0x%02X\n", adev->reg_dom_id);
9454+ CLEAR_BIT(adev->get_mask, GETSET_REG_DOMAIN);
9455+ }
9456+
9457+ if (adev->set_mask & GETSET_STATION_ID) {
9458+ u8 stationID[4 + ACX1xx_IE_DOT11_STATION_ID_LEN];
9459+ u8 *paddr;
9460+
9461+ paddr = &stationID[4];
9462+ memcpy(adev->dev_addr, adev->ndev->dev_addr, ETH_ALEN);
9463+ for (i = 0; i < ETH_ALEN; i++) {
9464+ /* copy the MAC address we obtained when we noticed
9465+ * that the ethernet iface's MAC changed
9466+ * to the card (reversed in
9467+ * the card!) */
9468+ paddr[i] = adev->dev_addr[ETH_ALEN - 1 - i];
9469+ }
9470+ acx_s_configure(adev, &stationID, ACX1xx_IE_DOT11_STATION_ID);
9471+ CLEAR_BIT(adev->set_mask, GETSET_STATION_ID);
9472+ }
9473+
9474+ if (adev->set_mask & SET_TEMPLATES) {
9475+ log(L_INIT, "updating packet templates\n");
9476+ switch (adev->mode) {
9477+ case ACX_MODE_2_STA:
9478+ acx_s_set_probe_request_template(adev);
9479+#if POWER_SAVE_80211
9480+ acx_s_set_null_data_template(adev);
9481+#endif
9482+ break;
9483+ case ACX_MODE_0_ADHOC:
9484+ acx_s_set_probe_request_template(adev);
9485+#if POWER_SAVE_80211
9486+ /* maybe power save functionality is somehow possible
9487+ * for Ad-Hoc mode, too... FIXME: verify it somehow? firmware debug fields? */
9488+ acx_s_set_null_data_template(adev);
9489+#endif
9490+ /* fall through */
9491+ case ACX_MODE_3_AP:
9492+ acx_s_set_beacon_template(adev);
9493+ acx_s_set_tim_template(adev);
9494+ /* BTW acx111 firmware would not send probe responses
9495+ ** if probe request does not have all basic rates flagged
9496+ ** by 0x80! Thus firmware does not conform to 802.11,
9497+ ** it should ignore 0x80 bit in ratevector from STA.
9498+ ** We can 'fix' it by not using this template and
9499+ ** sending probe responses by hand. TODO --vda */
9500+ acx_s_set_probe_response_template(adev);
9501+ }
9502+ /* Needed if generated frames are to be emitted at different tx rate now */
9503+ log(L_IRQ, "redoing cmd_join_bssid() after template cfg\n");
9504+ acx_s_cmd_join_bssid(adev, adev->bssid);
9505+ CLEAR_BIT(adev->set_mask, SET_TEMPLATES);
9506+ }
9507+ if (adev->set_mask & SET_STA_LIST) {
9508+ acx_lock(adev, flags);
9509+ acx_l_sta_list_init(adev);
9510+ CLEAR_BIT(adev->set_mask, SET_STA_LIST);
9511+ acx_unlock(adev, flags);
9512+ }
9513+ if (adev->set_mask & SET_RATE_FALLBACK) {
9514+ u8 rate[4 + ACX1xx_IE_RATE_FALLBACK_LEN];
9515+
9516+ /* configure to not do fallbacks when not in auto rate mode */
9517+ rate[4] = (adev->rate_auto) ? /* adev->txrate_fallback_retries */ 1 : 0;
9518+ log(L_INIT, "updating Tx fallback to %u retries\n", rate[4]);
9519+ acx_s_configure(adev, &rate, ACX1xx_IE_RATE_FALLBACK);
9520+ CLEAR_BIT(adev->set_mask, SET_RATE_FALLBACK);
9521+ }
9522+ if (adev->set_mask & GETSET_TXPOWER) {
9523+ log(L_INIT, "updating transmit power: %u dBm\n",
9524+ adev->tx_level_dbm);
9525+ acx_s_set_tx_level(adev, adev->tx_level_dbm);
9526+ CLEAR_BIT(adev->set_mask, GETSET_TXPOWER);
9527+ }
9528+
9529+ if (adev->set_mask & GETSET_SENSITIVITY) {
9530+ log(L_INIT, "updating sensitivity value: %u\n",
9531+ adev->sensitivity);
9532+ switch (adev->radio_type) {
9533+ case RADIO_RFMD_11:
9534+ case RADIO_MAXIM_0D:
9535+ case RADIO_RALINK_15:
9536+ acx_s_write_phy_reg(adev, 0x30, adev->sensitivity);
9537+ break;
9538+ case RADIO_RADIA_16:
9539+ case RADIO_UNKNOWN_17:
9540+ acx111_s_sens_radio_16_17(adev);
9541+ break;
9542+ default:
9543+ log(L_INIT, "don't know how to modify sensitivity "
9544+ "for radio type 0x%02X\n", adev->radio_type);
9545+ }
9546+ CLEAR_BIT(adev->set_mask, GETSET_SENSITIVITY);
9547+ }
9548+
9549+ if (adev->set_mask & GETSET_ANTENNA) {
9550+ /* antenna */
9551+ u8 antenna[4 + ACX1xx_IE_DOT11_CURRENT_ANTENNA_LEN];
9552+
9553+ memset(antenna, 0, sizeof(antenna));
9554+ antenna[4] = adev->antenna;
9555+ log(L_INIT, "updating antenna value: 0x%02X\n",
9556+ adev->antenna);
9557+ acx_s_configure(adev, &antenna, ACX1xx_IE_DOT11_CURRENT_ANTENNA);
9558+ CLEAR_BIT(adev->set_mask, GETSET_ANTENNA);
9559+ }
9560+
9561+ if (adev->set_mask & GETSET_ED_THRESH) {
9562+ /* ed_threshold */
9563+ log(L_INIT, "updating Energy Detect (ED) threshold: %u\n",
9564+ adev->ed_threshold);
9565+ if (IS_ACX100(adev)) {
9566+ u8 ed_threshold[4 + ACX100_IE_DOT11_ED_THRESHOLD_LEN];
9567+
9568+ memset(ed_threshold, 0, sizeof(ed_threshold));
9569+ ed_threshold[4] = adev->ed_threshold;
9570+ acx_s_configure(adev, &ed_threshold, ACX100_IE_DOT11_ED_THRESHOLD);
9571+ }
9572+ else
9573+ log(L_INIT, "acx111 doesn't support ED!\n");
9574+ CLEAR_BIT(adev->set_mask, GETSET_ED_THRESH);
9575+ }
9576+
9577+ if (adev->set_mask & GETSET_CCA) {
9578+ /* CCA value */
9579+ log(L_INIT, "updating Channel Clear Assessment "
9580+ "(CCA) value: 0x%02X\n", adev->cca);
9581+ if (IS_ACX100(adev)) {
9582+ u8 cca[4 + ACX1xx_IE_DOT11_CURRENT_CCA_MODE_LEN];
9583+
9584+ memset(cca, 0, sizeof(cca));
9585+ cca[4] = adev->cca;
9586+ acx_s_configure(adev, &cca, ACX1xx_IE_DOT11_CURRENT_CCA_MODE);
9587+ }
9588+ else
9589+ log(L_INIT, "acx111 doesn't support CCA!\n");
9590+ CLEAR_BIT(adev->set_mask, GETSET_CCA);
9591+ }
9592+
9593+ if (adev->set_mask & GETSET_LED_POWER) {
9594+ /* Enable Tx */
9595+ log(L_INIT, "updating power LED status: %u\n", adev->led_power);
9596+
9597+ acx_lock(adev, flags);
9598+#if defined (ACX_MEM)
9599+ acxmem_l_power_led(adev, adev->led_power);
9600+#else
9601+ if (IS_PCI(adev))
9602+ acxpci_l_power_led(adev, adev->led_power);
9603+#endif
9604+ CLEAR_BIT(adev->set_mask, GETSET_LED_POWER);
9605+ acx_unlock(adev, flags);
9606+ }
9607+
9608+ if (adev->set_mask & GETSET_POWER_80211) {
9609+#if POWER_SAVE_80211
9610+ acx_s_update_80211_powersave_mode(adev);
9611+#endif
9612+ CLEAR_BIT(adev->set_mask, GETSET_POWER_80211);
9613+ }
9614+
9615+ if (adev->set_mask & GETSET_CHANNEL) {
9616+ /* channel */
9617+ log(L_INIT, "updating channel to: %u\n", adev->channel);
9618+ CLEAR_BIT(adev->set_mask, GETSET_CHANNEL);
9619+ }
9620+
9621+ if (adev->set_mask & GETSET_TX) {
9622+ /* set Tx */
9623+ log(L_INIT, "updating: %s Tx\n",
9624+ adev->tx_disabled ? "disable" : "enable");
9625+ if (adev->tx_disabled)
9626+ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_TX, NULL, 0);
9627+ else
9628+ acx_s_issue_cmd(adev, ACX1xx_CMD_ENABLE_TX, &adev->channel, 1);
9629+ CLEAR_BIT(adev->set_mask, GETSET_TX);
9630+ }
9631+
9632+ if (adev->set_mask & GETSET_RX) {
9633+ /* Enable Rx */
9634+ log(L_INIT, "updating: enable Rx on channel: %u\n",
9635+ adev->channel);
9636+ acx_s_issue_cmd(adev, ACX1xx_CMD_ENABLE_RX, &adev->channel, 1);
9637+ CLEAR_BIT(adev->set_mask, GETSET_RX);
9638+ }
9639+
9640+ if (adev->set_mask & GETSET_RETRY) {
9641+ u8 short_retry[4 + ACX1xx_IE_DOT11_SHORT_RETRY_LIMIT_LEN];
9642+ u8 long_retry[4 + ACX1xx_IE_DOT11_LONG_RETRY_LIMIT_LEN];
9643+
9644+ log(L_INIT, "updating short retry limit: %u, long retry limit: %u\n",
9645+ adev->short_retry, adev->long_retry);
9646+ short_retry[0x4] = adev->short_retry;
9647+ long_retry[0x4] = adev->long_retry;
9648+ acx_s_configure(adev, &short_retry, ACX1xx_IE_DOT11_SHORT_RETRY_LIMIT);
9649+ acx_s_configure(adev, &long_retry, ACX1xx_IE_DOT11_LONG_RETRY_LIMIT);
9650+ CLEAR_BIT(adev->set_mask, GETSET_RETRY);
9651+ }
9652+
9653+ if (adev->set_mask & SET_MSDU_LIFETIME) {
9654+ u8 xmt_msdu_lifetime[4 + ACX1xx_IE_DOT11_MAX_XMIT_MSDU_LIFETIME_LEN];
9655+
9656+ log(L_INIT, "updating tx MSDU lifetime: %u\n",
9657+ adev->msdu_lifetime);
9658+ *(u32 *)&xmt_msdu_lifetime[4] = cpu_to_le32((u32)adev->msdu_lifetime);
9659+ acx_s_configure(adev, &xmt_msdu_lifetime, ACX1xx_IE_DOT11_MAX_XMIT_MSDU_LIFETIME);
9660+ CLEAR_BIT(adev->set_mask, SET_MSDU_LIFETIME);
9661+ }
9662+
9663+ if (adev->set_mask & GETSET_REG_DOMAIN) {
9664+ log(L_INIT, "updating regulatory domain: 0x%02X\n",
9665+ adev->reg_dom_id);
9666+ acx_s_set_sane_reg_domain(adev, 1);
9667+ CLEAR_BIT(adev->set_mask, GETSET_REG_DOMAIN);
9668+ }
9669+
9670+ if (adev->set_mask & GETSET_MODE) {
9671+ adev->ndev->type = (adev->mode == ACX_MODE_MONITOR) ?
9672+ adev->monitor_type : ARPHRD_ETHER;
9673+
9674+ switch (adev->mode) {
9675+ case ACX_MODE_3_AP:
9676+
9677+ acx_lock(adev, flags);
9678+ acx_l_sta_list_init(adev);
9679+ adev->aid = 0;
9680+ adev->ap_client = NULL;
9681+ MAC_COPY(adev->bssid, adev->dev_addr);
9682+ /* this basically says "we're connected" */
9683+ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED);
9684+ acx_unlock(adev, flags);
9685+
9686+ acx111_s_feature_off(adev, 0, FEATURE2_NO_TXCRYPT|FEATURE2_SNIFFER);
9687+ /* start sending beacons */
9688+ acx_s_cmd_join_bssid(adev, adev->bssid);
9689+ break;
9690+ case ACX_MODE_MONITOR:
9691+ acx111_s_feature_on(adev, 0, FEATURE2_NO_TXCRYPT|FEATURE2_SNIFFER);
9692+ /* this stops beacons */
9693+ acx_s_cmd_join_bssid(adev, adev->bssid);
9694+ /* this basically says "we're connected" */
9695+ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED);
9696+ SET_BIT(adev->set_mask, SET_RXCONFIG|SET_WEP_OPTIONS);
9697+ break;
9698+ case ACX_MODE_0_ADHOC:
9699+ case ACX_MODE_2_STA:
9700+ acx111_s_feature_off(adev, 0, FEATURE2_NO_TXCRYPT|FEATURE2_SNIFFER);
9701+
9702+ acx_lock(adev, flags);
9703+ adev->aid = 0;
9704+ adev->ap_client = NULL;
9705+ acx_unlock(adev, flags);
9706+
9707+ /* we want to start looking for peer or AP */
9708+ start_scan = 1;
9709+ break;
9710+ case ACX_MODE_OFF:
9711+ /* TODO: disable RX/TX, stop any scanning activity etc: */
9712+ /* adev->tx_disabled = 1; */
9713+ /* SET_BIT(adev->set_mask, GETSET_RX|GETSET_TX); */
9714+
9715+ /* This stops beacons (invalid macmode...) */
9716+ acx_s_cmd_join_bssid(adev, adev->bssid);
9717+ acx_set_status(adev, ACX_STATUS_0_STOPPED);
9718+ break;
9719+ }
9720+ CLEAR_BIT(adev->set_mask, GETSET_MODE);
9721+ }
9722+
9723+ if (adev->set_mask & SET_RXCONFIG) {
9724+ acx_s_initialize_rx_config(adev);
9725+ CLEAR_BIT(adev->set_mask, SET_RXCONFIG);
9726+ }
9727+
9728+ if (adev->set_mask & GETSET_RESCAN) {
9729+ switch (adev->mode) {
9730+ case ACX_MODE_0_ADHOC:
9731+ case ACX_MODE_2_STA:
9732+ start_scan = 1;
9733+ break;
9734+ }
9735+ CLEAR_BIT(adev->set_mask, GETSET_RESCAN);
9736+ }
9737+
9738+ if (adev->set_mask & GETSET_WEP) {
9739+ /* encode */
9740+
9741+ ie_dot11WEPDefaultKeyID_t dkey;
9742+#ifdef DEBUG_WEP
9743+ struct {
9744+ u16 type;
9745+ u16 len;
9746+ u8 val;
9747+ } ACX_PACKED keyindic;
9748+#endif
9749+ log(L_INIT, "updating WEP key settings\n");
9750+
9751+ acx_s_set_wepkey(adev);
9752+
9753+ dkey.KeyID = adev->wep_current_index;
9754+ log(L_INIT, "setting WEP key %u as default\n", dkey.KeyID);
9755+ acx_s_configure(adev, &dkey, ACX1xx_IE_DOT11_WEP_DEFAULT_KEY_SET);
9756+#ifdef DEBUG_WEP
9757+ keyindic.val = 3;
9758+ acx_s_configure(adev, &keyindic, ACX111_IE_KEY_CHOOSE);
9759+#endif
9760+ start_scan = 1;
9761+ CLEAR_BIT(adev->set_mask, GETSET_WEP);
9762+ }
9763+
9764+ if (adev->set_mask & SET_WEP_OPTIONS) {
9765+ acx100_ie_wep_options_t options;
9766+ if (IS_ACX111(adev)) {
9767+ log(L_DEBUG, "setting WEP Options for acx111 is not supported\n");
9768+ } else {
9769+ log(L_INIT, "setting WEP Options\n");
9770+ acx100_s_init_wep(adev);
9771+#if 0
9772+ /* let's choose maximum setting: 4 default keys,
9773+ * plus 10 other keys: */
9774+ options.NumKeys = cpu_to_le16(DOT11_MAX_DEFAULT_WEP_KEYS + 10);
9775+ /* don't decrypt default key only,
9776+ * don't override decryption: */
9777+ options.WEPOption = 0;
9778+ if (adev->mode == ACX_MODE_MONITOR) {
9779+ /* don't decrypt default key only,
9780+ * override decryption mechanism: */
9781+ options.WEPOption = 2;
9782+ }
9783+
9784+ acx_s_configure(adev, &options, ACX100_IE_WEP_OPTIONS);
9785+#endif
9786+ }
9787+ CLEAR_BIT(adev->set_mask, SET_WEP_OPTIONS);
9788+ }
9789+
9790+ /* Rescan was requested */
9791+ if (start_scan) {
9792+ switch (adev->mode) {
9793+ case ACX_MODE_0_ADHOC:
9794+ case ACX_MODE_2_STA:
9795+ /* We can avoid clearing list if join code
9796+ ** will be a bit more clever about not picking
9797+ ** 'bad' AP over and over again */
9798+ acx_lock(adev, flags);
9799+ adev->ap_client = NULL;
9800+ acx_l_sta_list_init(adev);
9801+ acx_set_status(adev, ACX_STATUS_1_SCANNING);
9802+ acx_unlock(adev, flags);
9803+
9804+ acx_s_cmd_start_scan(adev);
9805+ }
9806+ }
9807+
9808+ /* debug, rate, and nick don't need any handling */
9809+ /* what about sniffing mode?? */
9810+
9811+ log(L_INIT, "get_mask 0x%08X, set_mask 0x%08X - after update\n",
9812+ adev->get_mask, adev->set_mask);
9813+
9814+/* end: */
9815+ FN_EXIT0;
9816+}
9817+
9818+
9819+/***********************************************************************
9820+** acx_e_after_interrupt_task
9821+*/
9822+static int
9823+acx_s_recalib_radio(acx_device_t *adev)
9824+{
9825+ if (IS_ACX111(adev)) {
9826+ acx111_cmd_radiocalib_t cal;
9827+
9828+ printk("%s: recalibrating radio\n", adev->ndev->name);
9829+ /* automatic recalibration, choose all methods: */
9830+ cal.methods = cpu_to_le32(0x8000000f);
9831+ /* automatic recalibration every 60 seconds (value in TUs)
9832+ * I wonder what the firmware default here is? */
9833+ cal.interval = cpu_to_le32(58594);
9834+ return acx_s_issue_cmd_timeo(adev, ACX111_CMD_RADIOCALIB,
9835+ &cal, sizeof(cal), CMD_TIMEOUT_MS(100));
9836+ } else {
9837+ /* On ACX100, we need to recalibrate the radio
9838+ * by issuing a GETSET_TX|GETSET_RX */
9839+ if (/* (OK == acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_TX, NULL, 0)) &&
9840+ (OK == acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_RX, NULL, 0)) && */
9841+ (OK == acx_s_issue_cmd(adev, ACX1xx_CMD_ENABLE_TX, &adev->channel, 1)) &&
9842+ (OK == acx_s_issue_cmd(adev, ACX1xx_CMD_ENABLE_RX, &adev->channel, 1)) )
9843+ return OK;
9844+ return NOT_OK;
9845+ }
9846+}
9847+
9848+static void
9849+acx_s_after_interrupt_recalib(acx_device_t *adev)
9850+{
9851+ int res;
9852+
9853+ /* this helps with ACX100 at least;
9854+ * hopefully ACX111 also does a
9855+ * recalibration here */
9856+
9857+ /* clear flag beforehand, since we want to make sure
9858+ * it's cleared; then only set it again on specific circumstances */
9859+ CLEAR_BIT(adev->after_interrupt_jobs, ACX_AFTER_IRQ_CMD_RADIO_RECALIB);
9860+
9861+ /* better wait a bit between recalibrations to
9862+ * prevent overheating due to torturing the card
9863+ * into working too long despite high temperature
9864+ * (just a safety measure) */
9865+ if (adev->recalib_time_last_success
9866+ && time_before(jiffies, adev->recalib_time_last_success
9867+ + RECALIB_PAUSE * 60 * HZ)) {
9868+ if (adev->recalib_msg_ratelimit <= 4) {
9869+ printk("%s: less than " STRING(RECALIB_PAUSE)
9870+ " minutes since last radio recalibration, "
9871+ "not recalibrating (maybe card is too hot?)\n",
9872+ adev->ndev->name);
9873+ adev->recalib_msg_ratelimit++;
9874+ if (adev->recalib_msg_ratelimit == 5)
9875+ printk("disabling above message until next recalib\n");
9876+ }
9877+ return;
9878+ }
9879+
9880+ adev->recalib_msg_ratelimit = 0;
9881+
9882+ /* note that commands sometimes fail (card busy),
9883+ * so only clear flag if we were fully successful */
9884+ res = acx_s_recalib_radio(adev);
9885+ if (res == OK) {
9886+ printk("%s: successfully recalibrated radio\n",
9887+ adev->ndev->name);
9888+ adev->recalib_time_last_success = jiffies;
9889+ adev->recalib_failure_count = 0;
9890+ } else {
9891+ /* failed: resubmit, but only limited
9892+ * amount of times within some time range
9893+ * to prevent endless loop */
9894+
9895+ adev->recalib_time_last_success = 0; /* we failed */
9896+
9897+ /* if some time passed between last
9898+ * attempts, then reset failure retry counter
9899+ * to be able to do next recalib attempt */
9900+ if (time_after(jiffies, adev->recalib_time_last_attempt + 5*HZ))
9901+ adev->recalib_failure_count = 0;
9902+
9903+ if (adev->recalib_failure_count < 5) {
9904+ /* increment inside only, for speedup of outside path */
9905+ adev->recalib_failure_count++;
9906+ adev->recalib_time_last_attempt = jiffies;
9907+ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_RADIO_RECALIB);
9908+ }
9909+ }
9910+}
9911+
9912+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 20)
9913+static void
9914+acx_e_after_interrupt_task(struct work_struct *work)
9915+{
9916+ acx_device_t *adev = container_of(work, acx_device_t, after_interrupt_task);
9917+#else
9918+ static void
9919+ acx_e_after_interrupt_task(void *data)
9920+ {
9921+ struct net_device *ndev = (struct net_device*)data;
9922+ acx_device_t *adev = ndev2adev(ndev);
9923+#endif
9924+ FN_ENTER;
9925+
9926+ acx_sem_lock(adev);
9927+
9928+ if (!adev->after_interrupt_jobs)
9929+ goto end; /* no jobs to do */
9930+
9931+#if TX_CLEANUP_IN_SOFTIRQ
9932+ /* can happen only on PCI */
9933+ if (adev->after_interrupt_jobs & ACX_AFTER_IRQ_TX_CLEANUP) {
9934+ acx_lock(adev, flags);
9935+ acxpci_l_clean_txdesc(adev);
9936+ CLEAR_BIT(adev->after_interrupt_jobs, ACX_AFTER_IRQ_TX_CLEANUP);
9937+ acx_unlock(adev, flags);
9938+ }
9939+#endif
9940+ /* we see lotsa tx errors */
9941+ if (adev->after_interrupt_jobs & ACX_AFTER_IRQ_CMD_RADIO_RECALIB) {
9942+ acx_s_after_interrupt_recalib(adev);
9943+ }
9944+
9945+ /* a poor interrupt code wanted to do update_card_settings() */
9946+ if (adev->after_interrupt_jobs & ACX_AFTER_IRQ_UPDATE_CARD_CFG) {
9947+ if (ACX_STATE_IFACE_UP & adev->dev_state_mask)
9948+ acx_s_update_card_settings(adev);
9949+ CLEAR_BIT(adev->after_interrupt_jobs, ACX_AFTER_IRQ_UPDATE_CARD_CFG);
9950+ }
9951+
9952+ /* 1) we detected that no Scan_Complete IRQ came from fw, or
9953+ ** 2) we found too many STAs */
9954+ if (adev->after_interrupt_jobs & ACX_AFTER_IRQ_CMD_STOP_SCAN) {
9955+ log(L_IRQ, "sending a stop scan cmd...\n");
9956+ acx_s_issue_cmd(adev, ACX1xx_CMD_STOP_SCAN, NULL, 0);
9957+ /* HACK: set the IRQ bit, since we won't get a
9958+ * scan complete IRQ any more on ACX111 (works on ACX100!),
9959+ * since _we_, not a fw, have stopped the scan */
9960+ SET_BIT(adev->irq_status, HOST_INT_SCAN_COMPLETE);
9961+ CLEAR_BIT(adev->after_interrupt_jobs, ACX_AFTER_IRQ_CMD_STOP_SCAN);
9962+ }
9963+
9964+ /* either fw sent Scan_Complete or we detected that
9965+ ** no Scan_Complete IRQ came from fw. Finish scanning,
9966+ ** pick join partner if any */
9967+ if (adev->after_interrupt_jobs & ACX_AFTER_IRQ_COMPLETE_SCAN) {
9968+ if (adev->status == ACX_STATUS_1_SCANNING) {
9969+ if (OK != acx_s_complete_scan(adev)) {
9970+ SET_BIT(adev->after_interrupt_jobs,
9971+ ACX_AFTER_IRQ_RESTART_SCAN);
9972+ }
9973+ } else {
9974+ /* + scan kills current join status - restore it
9975+ ** (do we need it for STA?) */
9976+ /* + does it happen only with active scans?
9977+ ** active and passive scans? ALL scans including
9978+ ** background one? */
9979+ /* + was not verified that everything is restored
9980+ ** (but at least we start to emit beacons again) */
9981+ switch (adev->mode) {
9982+ case ACX_MODE_0_ADHOC:
9983+ case ACX_MODE_3_AP:
9984+ log(L_IRQ, "redoing cmd_join_bssid() after scan\n");
9985+ acx_s_cmd_join_bssid(adev, adev->bssid);
9986+ }
9987+ }
9988+ CLEAR_BIT(adev->after_interrupt_jobs, ACX_AFTER_IRQ_COMPLETE_SCAN);
9989+ }
9990+
9991+ /* STA auth or assoc timed out, start over again */
9992+ if (adev->after_interrupt_jobs & ACX_AFTER_IRQ_RESTART_SCAN) {
9993+ log(L_IRQ, "sending a start_scan cmd...\n");
9994+ acx_s_cmd_start_scan(adev);
9995+ CLEAR_BIT(adev->after_interrupt_jobs, ACX_AFTER_IRQ_RESTART_SCAN);
9996+ }
9997+
9998+ /* whee, we got positive assoc response! 8) */
9999+ if (adev->after_interrupt_jobs & ACX_AFTER_IRQ_CMD_ASSOCIATE) {
10000+ acx_ie_generic_t pdr;
10001+ /* tiny race window exists, checking that we still a STA */
10002+ switch (adev->mode) {
10003+ case ACX_MODE_2_STA:
10004+ pdr.m.aid = cpu_to_le16(adev->aid);
10005+ acx_s_configure(adev, &pdr, ACX1xx_IE_ASSOC_ID);
10006+ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED);
10007+ log(L_ASSOC|L_DEBUG, "ASSOCIATED!\n");
10008+ CLEAR_BIT(adev->after_interrupt_jobs, ACX_AFTER_IRQ_CMD_ASSOCIATE);
10009+ }
10010+ }
10011+end:
10012+ acx_sem_unlock(adev);
10013+ FN_EXIT0;
10014+}
10015+
10016+
10017+/***********************************************************************
10018+** acx_schedule_task
10019+**
10020+** Schedule the call of the after_interrupt method after leaving
10021+** the interrupt context.
10022+*/
10023+void
10024+acx_schedule_task(acx_device_t *adev, unsigned int set_flag)
10025+{
10026+ SET_BIT(adev->after_interrupt_jobs, set_flag);
10027+ SCHEDULE_WORK(&adev->after_interrupt_task);
10028+}
10029+
10030+
10031+/***********************************************************************
10032+*/
10033+void
10034+acx_init_task_scheduler(acx_device_t *adev)
10035+{
10036+ /* configure task scheduler */
10037+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 20)
10038+ INIT_WORK(&adev->after_interrupt_task, acx_e_after_interrupt_task);
10039+#else
10040+ INIT_WORK(&adev->after_interrupt_task, acx_e_after_interrupt_task,
10041+ adev->ndev);
10042+#endif
10043+}
10044+
10045+
10046+/***********************************************************************
10047+** acx_s_start
10048+*/
10049+void
10050+acx_s_start(acx_device_t *adev)
10051+{
10052+ FN_ENTER;
10053+
10054+ /*
10055+ * Ok, now we do everything that can possibly be done with ioctl
10056+ * calls to make sure that when it was called before the card
10057+ * was up we get the changes asked for
10058+ */
10059+
10060+ SET_BIT(adev->set_mask, SET_TEMPLATES|SET_STA_LIST|GETSET_WEP
10061+ |GETSET_TXPOWER|GETSET_ANTENNA|GETSET_ED_THRESH|GETSET_CCA
10062+ |GETSET_REG_DOMAIN|GETSET_MODE|GETSET_CHANNEL
10063+ |GETSET_TX|GETSET_RX|GETSET_STATION_ID);
10064+
10065+ log(L_INIT, "updating initial settings on iface activation\n");
10066+ acx_s_update_card_settings(adev);
10067+
10068+ FN_EXIT0;
10069+}
10070+
10071+
10072+/***********************************************************************
10073+** acx_update_capabilities
10074+*/
10075+void
10076+acx_update_capabilities(acx_device_t *adev)
10077+{
10078+ u16 cap = 0;
10079+
10080+ switch (adev->mode) {
10081+ case ACX_MODE_3_AP:
10082+ SET_BIT(cap, WF_MGMT_CAP_ESS); break;
10083+ case ACX_MODE_0_ADHOC:
10084+ SET_BIT(cap, WF_MGMT_CAP_IBSS); break;
10085+ /* other types of stations do not emit beacons */
10086+ }
10087+
10088+ if (adev->wep_restricted) {
10089+ SET_BIT(cap, WF_MGMT_CAP_PRIVACY);
10090+ }
10091+ if (adev->cfgopt_dot11ShortPreambleOption) {
10092+ SET_BIT(cap, WF_MGMT_CAP_SHORT);
10093+ }
10094+ if (adev->cfgopt_dot11PBCCOption) {
10095+ SET_BIT(cap, WF_MGMT_CAP_PBCC);
10096+ }
10097+ if (adev->cfgopt_dot11ChannelAgility) {
10098+ SET_BIT(cap, WF_MGMT_CAP_AGILITY);
10099+ }
10100+ log(L_DEBUG, "caps updated from 0x%04X to 0x%04X\n",
10101+ adev->capabilities, cap);
10102+ adev->capabilities = cap;
10103+}
10104+
10105+/***********************************************************************
10106+** Common function to parse ALL configoption struct formats
10107+** (ACX100 and ACX111; FIXME: how to make it work with ACX100 USB!?!?).
10108+** FIXME: logging should be removed here and added to a /proc file instead
10109+*/
10110+void
10111+acx_s_parse_configoption(acx_device_t *adev, const acx111_ie_configoption_t *pcfg)
10112+{
10113+ const u8 *pEle;
10114+ int i;
10115+ int is_acx111 = IS_ACX111(adev);
10116+
10117+ if (acx_debug & L_DEBUG) {
10118+ printk("configoption struct content:\n");
10119+ acx_dump_bytes(pcfg, sizeof(*pcfg));
10120+ }
10121+
10122+ if (( is_acx111 && (adev->eeprom_version == 5))
10123+ || (!is_acx111 && (adev->eeprom_version == 4))
10124+ || (!is_acx111 && (adev->eeprom_version == 5))) {
10125+ /* these versions are known to be supported */
10126+ } else {
10127+ printk("unknown chip and EEPROM version combination (%s, v%d), "
10128+ "don't know how to parse config options yet. "
10129+ "Please report\n", is_acx111 ? "ACX111" : "ACX100",
10130+ adev->eeprom_version);
10131+ return;
10132+ }
10133+
10134+ /* first custom-parse the first part which has chip-specific layout */
10135+
10136+ pEle = (const u8 *) pcfg;
10137+
10138+ pEle += 4; /* skip (type,len) header */
10139+
10140+ memcpy(adev->cfgopt_NVSv, pEle, sizeof(adev->cfgopt_NVSv));
10141+ pEle += sizeof(adev->cfgopt_NVSv);
10142+
10143+ if (is_acx111) {
10144+ adev->cfgopt_NVS_vendor_offs = le16_to_cpu(*(u16 *)pEle);
10145+ pEle += sizeof(adev->cfgopt_NVS_vendor_offs);
10146+
10147+ adev->cfgopt_probe_delay = 200; /* good default value? */
10148+ pEle += 2; /* FIXME: unknown, value 0x0001 */
10149+ } else {
10150+ memcpy(adev->cfgopt_MAC, pEle, sizeof(adev->cfgopt_MAC));
10151+ pEle += sizeof(adev->cfgopt_MAC);
10152+
10153+ adev->cfgopt_probe_delay = le16_to_cpu(*(u16 *)pEle);
10154+ pEle += sizeof(adev->cfgopt_probe_delay);
10155+ if ((adev->cfgopt_probe_delay < 100) || (adev->cfgopt_probe_delay > 500)) {
10156+ printk("strange probe_delay value %d, "
10157+ "tweaking to 200\n", adev->cfgopt_probe_delay);
10158+ adev->cfgopt_probe_delay = 200;
10159+ }
10160+ }
10161+
10162+ adev->cfgopt_eof_memory = le32_to_cpu(*(u32 *)pEle);
10163+ pEle += sizeof(adev->cfgopt_eof_memory);
10164+
10165+ printk("NVS_vendor_offs:%04X probe_delay:%d eof_memory:%d\n",
10166+ adev->cfgopt_NVS_vendor_offs,
10167+ adev->cfgopt_probe_delay,
10168+ adev->cfgopt_eof_memory);
10169+
10170+ adev->cfgopt_dot11CCAModes = *pEle++;
10171+ adev->cfgopt_dot11Diversity = *pEle++;
10172+ adev->cfgopt_dot11ShortPreambleOption = *pEle++;
10173+ adev->cfgopt_dot11PBCCOption = *pEle++;
10174+ adev->cfgopt_dot11ChannelAgility = *pEle++;
10175+ adev->cfgopt_dot11PhyType = *pEle++;
10176+ adev->cfgopt_dot11TempType = *pEle++;
10177+ printk("CCAModes:%02X Diversity:%02X ShortPreOpt:%02X "
10178+ "PBCC:%02X ChanAgil:%02X PHY:%02X Temp:%02X\n",
10179+ adev->cfgopt_dot11CCAModes,
10180+ adev->cfgopt_dot11Diversity,
10181+ adev->cfgopt_dot11ShortPreambleOption,
10182+ adev->cfgopt_dot11PBCCOption,
10183+ adev->cfgopt_dot11ChannelAgility,
10184+ adev->cfgopt_dot11PhyType,
10185+ adev->cfgopt_dot11TempType);
10186+
10187+ /* then use common parsing for next part which has common layout */
10188+
10189+ pEle++; /* skip table_count (6) */
10190+
10191+ if (IS_MEM(adev) && IS_ACX100(adev))
10192+ {
10193+ /*
10194+ * For iPaq hx4700 Generic Slave F/W 1.10.7.K. I'm not sure if these
10195+ * 4 extra bytes are before the dot11 things above or after, so I'm just
10196+ * going to guess after. If someone sees these aren't reasonable numbers,
10197+ * please fix this.
10198+ * The area from which the dot11 values above are read contains:
10199+ * 04 01 01 01 00 05 01 06 00 02 01 02
10200+ * the 8 dot11 reads above take care of 8 of them, but which 8...
10201+ */
10202+ pEle += 4;
10203+ }
10204+
10205+ adev->cfgopt_antennas.type = pEle[0];
10206+ adev->cfgopt_antennas.len = pEle[1];
10207+ printk("AntennaID:%02X Len:%02X Data:",
10208+ adev->cfgopt_antennas.type, adev->cfgopt_antennas.len);
10209+ for (i = 0; i < pEle[1]; i++) {
10210+ adev->cfgopt_antennas.list[i] = pEle[i+2];
10211+ printk("%02X ", pEle[i+2]);
10212+ }
10213+ printk("\n");
10214+
10215+ pEle += pEle[1] + 2;
10216+ adev->cfgopt_power_levels.type = pEle[0];
10217+ adev->cfgopt_power_levels.len = pEle[1];
10218+ printk("PowerLevelID:%02X Len:%02X Data:",
10219+ adev->cfgopt_power_levels.type, adev->cfgopt_power_levels.len);
10220+ for (i = 0; i < pEle[1]; i++) {
10221+ adev->cfgopt_power_levels.list[i] = le16_to_cpu(*(u16 *)&pEle[i*2+2]);
10222+ printk("%04X ", adev->cfgopt_power_levels.list[i]);
10223+ }
10224+ printk("\n");
10225+
10226+ pEle += pEle[1]*2 + 2;
10227+ adev->cfgopt_data_rates.type = pEle[0];
10228+ adev->cfgopt_data_rates.len = pEle[1];
10229+ printk("DataRatesID:%02X Len:%02X Data:",
10230+ adev->cfgopt_data_rates.type, adev->cfgopt_data_rates.len);
10231+ for (i = 0; i < pEle[1]; i++) {
10232+ adev->cfgopt_data_rates.list[i] = pEle[i+2];
10233+ printk("%02X ", pEle[i+2]);
10234+ }
10235+ printk("\n");
10236+
10237+ pEle += pEle[1] + 2;
10238+ adev->cfgopt_domains.type = pEle[0];
10239+ adev->cfgopt_domains.len = pEle[1];
10240+ if (IS_MEM(adev) && IS_ACX100(adev))
10241+ {
10242+ /*
10243+ * For iPaq hx4700 Generic Slave F/W 1.10.7.K.
10244+ * There's an extra byte between this structure and the next
10245+ * that is not accounted for with this structure's length. It's
10246+ * most likely a bug in the firmware, but we can fix it here
10247+ * by bumping the length of this field by 1.
10248+ */
10249+ adev->cfgopt_domains.len++;
10250+ }
10251+ printk("DomainID:%02X Len:%02X Data:",
10252+ adev->cfgopt_domains.type, adev->cfgopt_domains.len);
10253+ for (i = 0; i < adev->cfgopt_domains.len; i++) {
10254+ adev->cfgopt_domains.list[i] = pEle[i+2];
10255+ printk("%02X ", pEle[i+2]);
10256+ }
10257+ printk("\n");
10258+
10259+ pEle += adev->cfgopt_domains.len + 2;
10260+
10261+ adev->cfgopt_product_id.type = pEle[0];
10262+ adev->cfgopt_product_id.len = pEle[1];
10263+ for (i = 0; i < pEle[1]; i++) {
10264+ adev->cfgopt_product_id.list[i] = pEle[i+2];
10265+ }
10266+ printk("ProductID:%02X Len:%02X Data:%.*s\n",
10267+ adev->cfgopt_product_id.type, adev->cfgopt_product_id.len,
10268+ adev->cfgopt_product_id.len, (char *)adev->cfgopt_product_id.list);
10269+
10270+ pEle += pEle[1] + 2;
10271+ adev->cfgopt_manufacturer.type = pEle[0];
10272+ adev->cfgopt_manufacturer.len = pEle[1];
10273+ for (i = 0; i < pEle[1]; i++) {
10274+ adev->cfgopt_manufacturer.list[i] = pEle[i+2];
10275+ }
10276+ printk("ManufacturerID:%02X Len:%02X Data:%.*s\n",
10277+ adev->cfgopt_manufacturer.type, adev->cfgopt_manufacturer.len,
10278+ adev->cfgopt_manufacturer.len, (char *)adev->cfgopt_manufacturer.list);
10279+/*
10280+ printk("EEPROM part:\n");
10281+ for (i=0; i<58; i++) {
10282+ printk("%02X =======> 0x%02X\n",
10283+ i, (u8 *)adev->cfgopt_NVSv[i-2]);
10284+ }
10285+*/
10286+}
10287+
10288+
10289+/***********************************************************************
10290+*/
10291+static int __init
10292+acx_e_init_module(void)
10293+{
10294+ int r1,r2,r3,r4;
10295+
10296+ acx_struct_size_check();
10297+
10298+ printk("acx: this driver is still EXPERIMENTAL\n"
10299+ "acx: reading README file and/or Craig's HOWTO is "
10300+ "recommended, visit http://acx100.sf.net in case "
10301+ "of further questions/discussion\n");
10302+
10303+#if defined(CONFIG_ACX_PCI)
10304+ r1 = acxpci_e_init_module();
10305+#else
10306+ r1 = -EINVAL;
10307+#endif
10308+#if defined(CONFIG_ACX_MEM)
10309+ r2 = acxmem_e_init_module();
10310+#else
10311+ r2 = -EINVAL;
10312+#endif
10313+#if defined(CONFIG_ACX_USB)
10314+ r3 = acxusb_e_init_module();
10315+#else
10316+ r3 = -EINVAL;
10317+#endif
10318+#if defined(CONFIG_ACX_CS)
10319+ r4 = acx_cs_init();
10320+#else
10321+ r4 = -EINVAL;
10322+#endif
10323+ if (r2 && r1 && r3 && r4) { /* all failed! */
10324+ if (r3 || r1)
10325+ return r3 ? r3 : r1;
10326+ else
10327+ return r2;
10328+ }
10329+ /* return success if at least one succeeded */
10330+ return 0;
10331+
10332+}
10333+
10334+static void __exit
10335+acx_e_cleanup_module(void)
10336+{
10337+#if defined(CONFIG_ACX_PCI)
10338+ acxpci_e_cleanup_module();
10339+#endif
10340+#if defined(CONFIG_ACX_MEM)
10341+ acxmem_e_cleanup_module();
10342+#endif
10343+#if defined(CONFIG_ACX_USB)
10344+ acxusb_e_cleanup_module();
10345+#endif
10346+#if defined(CONFIG_ACX_CS)
10347+ acx_cs_cleanup();
10348+#endif
10349+}
10350+
10351+module_init(acx_e_init_module)
10352+module_exit(acx_e_cleanup_module)
10353Index: linux-2.6.22/drivers/net/wireless/acx/conv.c
10354===================================================================
10355--- /dev/null 1970-01-01 00:00:00.000000000 +0000
10356+++ linux-2.6.22/drivers/net/wireless/acx/conv.c 2007-08-23 18:34:19.000000000 +0200
10357@@ -0,0 +1,504 @@
10358+/***********************************************************************
10359+** Copyright (C) 2003 ACX100 Open Source Project
10360+**
10361+** The contents of this file are subject to the Mozilla Public
10362+** License Version 1.1 (the "License"); you may not use this file
10363+** except in compliance with the License. You may obtain a copy of
10364+** the License at http://www.mozilla.org/MPL/
10365+**
10366+** Software distributed under the License is distributed on an "AS
10367+** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
10368+** implied. See the License for the specific language governing
10369+** rights and limitations under the License.
10370+**
10371+** Alternatively, the contents of this file may be used under the
10372+** terms of the GNU Public License version 2 (the "GPL"), in which
10373+** case the provisions of the GPL are applicable instead of the
10374+** above. If you wish to allow the use of your version of this file
10375+** only under the terms of the GPL and not to allow others to use
10376+** your version of this file under the MPL, indicate your decision
10377+** by deleting the provisions above and replace them with the notice
10378+** and other provisions required by the GPL. If you do not delete
10379+** the provisions above, a recipient may use your version of this
10380+** file under either the MPL or the GPL.
10381+** ---------------------------------------------------------------------
10382+** Inquiries regarding the ACX100 Open Source Project can be
10383+** made directly to:
10384+**
10385+** acx100-users@lists.sf.net
10386+** http://acx100.sf.net
10387+** ---------------------------------------------------------------------
10388+*/
10389+
10390+#include <linux/version.h>
10391+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18)
10392+#include <linux/config.h>
10393+#endif
10394+#include <linux/skbuff.h>
10395+#include <linux/if_arp.h>
10396+#include <linux/etherdevice.h>
10397+#include <linux/wireless.h>
10398+#include <net/iw_handler.h>
10399+
10400+#include "acx.h"
10401+
10402+
10403+/***********************************************************************
10404+** proto_is_stt
10405+**
10406+** Searches the 802.1h Selective Translation Table for a given
10407+** protocol.
10408+**
10409+** prottype - protocol number (in host order) to search for.
10410+**
10411+** Returns:
10412+** 1 - if the table is empty or a match is found.
10413+** 0 - if the table is non-empty and a match is not found.
10414+**
10415+** Based largely on p80211conv.c of the linux-wlan-ng project
10416+*/
10417+static inline int
10418+proto_is_stt(unsigned int proto)
10419+{
10420+ /* Always return found for now. This is the behavior used by the */
10421+ /* Zoom Win95 driver when 802.1h mode is selected */
10422+ /* TODO: If necessary, add an actual search we'll probably
10423+ need this to match the CMAC's way of doing things.
10424+ Need to do some testing to confirm.
10425+ */
10426+
10427+ if (proto == 0x80f3) /* APPLETALK */
10428+ return 1;
10429+
10430+ return 0;
10431+/* return ((prottype == ETH_P_AARP) || (prottype == ETH_P_IPX)); */
10432+}
10433+
10434+/* Helpers */
10435+
10436+static inline void
10437+store_llc_snap(struct wlan_llc *llc)
10438+{
10439+ llc->dsap = 0xaa; /* SNAP, see IEEE 802 */
10440+ llc->ssap = 0xaa;
10441+ llc->ctl = 0x03;
10442+}
10443+static inline int
10444+llc_is_snap(const struct wlan_llc *llc)
10445+{
10446+ return (llc->dsap == 0xaa)
10447+ && (llc->ssap == 0xaa)
10448+ && (llc->ctl == 0x03);
10449+}
10450+static inline void
10451+store_oui_rfc1042(struct wlan_snap *snap)
10452+{
10453+ snap->oui[0] = 0;
10454+ snap->oui[1] = 0;
10455+ snap->oui[2] = 0;
10456+}
10457+static inline int
10458+oui_is_rfc1042(const struct wlan_snap *snap)
10459+{
10460+ return (snap->oui[0] == 0)
10461+ && (snap->oui[1] == 0)
10462+ && (snap->oui[2] == 0);
10463+}
10464+static inline void
10465+store_oui_8021h(struct wlan_snap *snap)
10466+{
10467+ snap->oui[0] = 0;
10468+ snap->oui[1] = 0;
10469+ snap->oui[2] = 0xf8;
10470+}
10471+static inline int
10472+oui_is_8021h(const struct wlan_snap *snap)
10473+{
10474+ return (snap->oui[0] == 0)
10475+ && (snap->oui[1] == 0)
10476+ && (snap->oui[2] == 0xf8);
10477+}
10478+
10479+
10480+/***********************************************************************
10481+** acx_ether_to_txbuf
10482+**
10483+** Uses the contents of the ether frame to build the elements of
10484+** the 802.11 frame.
10485+**
10486+** We don't actually set up the frame header here. That's the
10487+** MAC's job. We're only handling conversion of DIXII or 802.3+LLC
10488+** frames to something that works with 802.11.
10489+**
10490+** Based largely on p80211conv.c of the linux-wlan-ng project
10491+*/
10492+int
10493+acx_ether_to_txbuf(acx_device_t *adev, void *txbuf, const struct sk_buff *skb)
10494+{
10495+ struct wlan_hdr_a3 *w_hdr;
10496+ struct wlan_ethhdr *e_hdr;
10497+ struct wlan_llc *e_llc;
10498+ struct wlan_snap *e_snap;
10499+ const u8 *a1, *a3;
10500+ int header_len, payload_len = -1;
10501+ /* protocol type or data length, depending on whether
10502+ * DIX or 802.3 ethernet format */
10503+ u16 proto;
10504+ u16 fc;
10505+
10506+ FN_ENTER;
10507+
10508+ if (unlikely(!skb->len)) {
10509+ log(L_DEBUG, "zero-length skb!\n");
10510+ goto end;
10511+ }
10512+
10513+ w_hdr = (struct wlan_hdr_a3*)txbuf;
10514+
10515+ switch (adev->mode) {
10516+ case ACX_MODE_MONITOR:
10517+ /* NB: one day we might want to play with DESC_CTL2_FCS
10518+ ** Will need to stop doing "- WLAN_FCS_LEN" here then */
10519+ if (unlikely(skb->len >= WLAN_A4FR_MAXLEN_WEP_FCS - WLAN_FCS_LEN)) {
10520+ printk("%s: can't tx oversized frame (%d bytes)\n",
10521+ adev->ndev->name, skb->len);
10522+ goto end;
10523+ }
10524+ memcpy(w_hdr, skb->data, skb->len);
10525+ payload_len = skb->len;
10526+ goto end;
10527+ }
10528+
10529+ /* step 1: classify ether frame, DIX or 802.3? */
10530+ e_hdr = (wlan_ethhdr_t *)skb->data;
10531+ proto = ntohs(e_hdr->type);
10532+ if (proto <= 1500) {
10533+ log(L_DEBUG, "tx: 802.3 len: %d\n", skb->len);
10534+ /* codes <= 1500 reserved for 802.3 lengths */
10535+ /* it's 802.3, pass ether payload unchanged, */
10536+ /* trim off ethernet header and copy payload to txdesc */
10537+ header_len = WLAN_HDR_A3_LEN;
10538+ } else {
10539+ /* it's DIXII, time for some conversion */
10540+ /* Create 802.11 packet. Header also contains llc and snap. */
10541+
10542+ log(L_DEBUG, "tx: DIXII len: %d\n", skb->len);
10543+
10544+ /* size of header is 802.11 header + llc + snap */
10545+ header_len = WLAN_HDR_A3_LEN + sizeof(wlan_llc_t) + sizeof(wlan_snap_t);
10546+ /* llc is located behind the 802.11 header */
10547+ e_llc = (wlan_llc_t*)(w_hdr + 1);
10548+ /* snap is located behind the llc */
10549+ e_snap = (wlan_snap_t*)(e_llc + 1);
10550+
10551+ /* setup the LLC header */
10552+ store_llc_snap(e_llc);
10553+
10554+ /* setup the SNAP header */
10555+ e_snap->type = htons(proto);
10556+ if (proto_is_stt(proto)) {
10557+ store_oui_8021h(e_snap);
10558+ } else {
10559+ store_oui_rfc1042(e_snap);
10560+ }
10561+ }
10562+ /* trim off ethernet header and copy payload to txbuf */
10563+ payload_len = skb->len - sizeof(wlan_ethhdr_t);
10564+ /* TODO: can we just let acx DMA payload from skb instead? */
10565+ memcpy((u8*)txbuf + header_len, skb->data + sizeof(wlan_ethhdr_t), payload_len);
10566+ payload_len += header_len;
10567+
10568+ /* Set up the 802.11 header */
10569+ switch (adev->mode) {
10570+ case ACX_MODE_0_ADHOC:
10571+ fc = (WF_FTYPE_DATAi | WF_FSTYPE_DATAONLYi);
10572+ a1 = e_hdr->daddr;
10573+ a3 = adev->bssid;
10574+ break;
10575+ case ACX_MODE_2_STA:
10576+ fc = (WF_FTYPE_DATAi | WF_FSTYPE_DATAONLYi | WF_FC_TODSi);
10577+ a1 = adev->bssid;
10578+ a3 = e_hdr->daddr;
10579+ break;
10580+ case ACX_MODE_3_AP:
10581+ fc = (WF_FTYPE_DATAi | WF_FSTYPE_DATAONLYi | WF_FC_FROMDSi);
10582+ a1 = e_hdr->daddr;
10583+ a3 = e_hdr->saddr;
10584+ break;
10585+ default:
10586+ printk("%s: error - converting eth to wlan in unknown mode\n",
10587+ adev->ndev->name);
10588+ payload_len = -1;
10589+ goto end;
10590+ }
10591+ if (adev->wep_enabled)
10592+ SET_BIT(fc, WF_FC_ISWEPi);
10593+
10594+ w_hdr->fc = fc;
10595+ w_hdr->dur = 0;
10596+ MAC_COPY(w_hdr->a1, a1);
10597+ MAC_COPY(w_hdr->a2, adev->dev_addr);
10598+ MAC_COPY(w_hdr->a3, a3);
10599+ w_hdr->seq = 0;
10600+
10601+#ifdef DEBUG_CONVERT
10602+ if (acx_debug & L_DATA) {
10603+ printk("original eth frame [%d]: ", skb->len);
10604+ acx_dump_bytes(skb->data, skb->len);
10605+ printk("802.11 frame [%d]: ", payload_len);
10606+ acx_dump_bytes(w_hdr, payload_len);
10607+ }
10608+#endif
10609+
10610+end:
10611+ FN_EXIT1(payload_len);
10612+ return payload_len;
10613+}
10614+
10615+
10616+/***********************************************************************
10617+** acx_rxbuf_to_ether
10618+**
10619+** Uses the contents of a received 802.11 frame to build an ether
10620+** frame.
10621+**
10622+** This function extracts the src and dest address from the 802.11
10623+** frame to use in the construction of the eth frame.
10624+**
10625+** Based largely on p80211conv.c of the linux-wlan-ng project
10626+*/
10627+struct sk_buff*
10628+acx_rxbuf_to_ether(acx_device_t *adev, rxbuffer_t *rxbuf)
10629+{
10630+ struct wlan_hdr *w_hdr;
10631+ struct wlan_ethhdr *e_hdr;
10632+ struct wlan_llc *e_llc;
10633+ struct wlan_snap *e_snap;
10634+ struct sk_buff *skb;
10635+ const u8 *daddr;
10636+ const u8 *saddr;
10637+ const u8 *e_payload;
10638+ int buflen, payload_length;
10639+ unsigned int payload_offset, mtu;
10640+ u16 fc;
10641+
10642+ FN_ENTER;
10643+
10644+ /* This looks complex because it must handle possible
10645+ ** phy header in rxbuff */
10646+ w_hdr = acx_get_wlan_hdr(adev, rxbuf);
10647+ payload_offset = WLAN_HDR_A3_LEN; /* it is relative to w_hdr */
10648+ payload_length = RXBUF_BYTES_USED(rxbuf) /* entire rxbuff... */
10649+ - ((u8*)w_hdr - (u8*)rxbuf) /* minus space before 802.11 frame */
10650+ - WLAN_HDR_A3_LEN; /* minus 802.11 header */
10651+
10652+ /* setup some vars for convenience */
10653+ fc = w_hdr->fc;
10654+ switch (WF_FC_FROMTODSi & fc) {
10655+ case 0:
10656+ daddr = w_hdr->a1;
10657+ saddr = w_hdr->a2;
10658+ break;
10659+ case WF_FC_FROMDSi:
10660+ daddr = w_hdr->a1;
10661+ saddr = w_hdr->a3;
10662+ break;
10663+ case WF_FC_TODSi:
10664+ daddr = w_hdr->a3;
10665+ saddr = w_hdr->a2;
10666+ break;
10667+ default: /* WF_FC_FROMTODSi */
10668+ payload_offset += (WLAN_HDR_A4_LEN - WLAN_HDR_A3_LEN);
10669+ payload_length -= (WLAN_HDR_A4_LEN - WLAN_HDR_A3_LEN);
10670+ daddr = w_hdr->a3;
10671+ saddr = w_hdr->a4;
10672+ }
10673+
10674+ if ((WF_FC_ISWEPi & fc) && IS_ACX100(adev)) {
10675+ /* chop off the IV+ICV WEP header and footer */
10676+ log(L_DATA|L_DEBUG, "rx: WEP packet, "
10677+ "chopping off IV and ICV\n");
10678+ payload_offset += WLAN_WEP_IV_LEN;
10679+ payload_length -= WLAN_WEP_IV_LEN + WLAN_WEP_ICV_LEN;
10680+ }
10681+
10682+ if (unlikely(payload_length < 0)) {
10683+ printk("%s: rx frame too short, ignored\n", adev->ndev->name);
10684+ goto ret_null;
10685+ }
10686+
10687+ e_hdr = (wlan_ethhdr_t*) ((u8*) w_hdr + payload_offset);
10688+ e_llc = (wlan_llc_t*) e_hdr;
10689+ e_snap = (wlan_snap_t*) (e_llc + 1);
10690+ mtu = adev->ndev->mtu;
10691+ e_payload = (u8*) (e_snap + 1);
10692+
10693+ log(L_DATA, "rx: payload_offset %d, payload_length %d\n",
10694+ payload_offset, payload_length);
10695+ log(L_XFER|L_DATA,
10696+ "rx: frame info: llc=%02X%02X%02X "
10697+ "snap.oui=%02X%02X%02X snap.type=%04X\n",
10698+ e_llc->dsap, e_llc->ssap, e_llc->ctl,
10699+ e_snap->oui[0], e_snap->oui[1], e_snap->oui[2],
10700+ ntohs(e_snap->type));
10701+
10702+ /* Test for the various encodings */
10703+ if ((payload_length >= sizeof(wlan_ethhdr_t))
10704+ && ((e_llc->dsap != 0xaa) || (e_llc->ssap != 0xaa))
10705+ && ( (mac_is_equal(daddr, e_hdr->daddr))
10706+ || (mac_is_equal(saddr, e_hdr->saddr))
10707+ )
10708+ ) {
10709+ /* 802.3 Encapsulated: */
10710+ /* wlan frame body contains complete eth frame (header+body) */
10711+ log(L_DEBUG|L_DATA, "rx: 802.3 ENCAP len=%d\n", payload_length);
10712+
10713+ if (unlikely(payload_length > (mtu + ETH_HLEN))) {
10714+ printk("%s: rx: ENCAP frame too large (%d > %d)\n",
10715+ adev->ndev->name,
10716+ payload_length, mtu + ETH_HLEN);
10717+ goto ret_null;
10718+ }
10719+
10720+ /* allocate space and setup host buffer */
10721+ buflen = payload_length;
10722+ /* Attempt to align IP header (14 bytes eth header + 2 = 16) */
10723+ skb = dev_alloc_skb(buflen + 2);
10724+ if (unlikely(!skb))
10725+ goto no_skb;
10726+ skb_reserve(skb, 2);
10727+ skb_put(skb, buflen); /* make room */
10728+
10729+ /* now copy the data from the 80211 frame */
10730+ memcpy(skb->data, e_hdr, payload_length);
10731+
10732+ } else if ( (payload_length >= sizeof(wlan_llc_t)+sizeof(wlan_snap_t))
10733+ && llc_is_snap(e_llc) ) {
10734+ /* wlan frame body contains: AA AA 03 ... (it's a SNAP) */
10735+
10736+ if ( !oui_is_rfc1042(e_snap)
10737+ || (proto_is_stt(ieee2host16(e_snap->type)) /* && (ethconv == WLAN_ETHCONV_8021h) */)) {
10738+ log(L_DEBUG|L_DATA, "rx: SNAP+RFC1042 len=%d\n", payload_length);
10739+ /* wlan frame body contains: AA AA 03 !(00 00 00) ... -or- */
10740+ /* wlan frame body contains: AA AA 03 00 00 00 0x80f3 ... */
10741+ /* build eth hdr, type = len, copy AA AA 03... as eth body */
10742+ /* it's a SNAP + RFC1042 frame && protocol is in STT */
10743+
10744+ if (unlikely(payload_length > mtu)) {
10745+ printk("%s: rx: SNAP frame too large (%d > %d)\n",
10746+ adev->ndev->name,
10747+ payload_length, mtu);
10748+ goto ret_null;
10749+ }
10750+
10751+ /* allocate space and setup host buffer */
10752+ buflen = payload_length + ETH_HLEN;
10753+ skb = dev_alloc_skb(buflen + 2);
10754+ if (unlikely(!skb))
10755+ goto no_skb;
10756+ skb_reserve(skb, 2);
10757+ skb_put(skb, buflen); /* make room */
10758+
10759+ /* create 802.3 header */
10760+ e_hdr = (wlan_ethhdr_t*) skb->data;
10761+ MAC_COPY(e_hdr->daddr, daddr);
10762+ MAC_COPY(e_hdr->saddr, saddr);
10763+ e_hdr->type = htons(payload_length);
10764+
10765+ /* Now copy the data from the 80211 frame.
10766+ Make room in front for the eth header, and keep the
10767+ llc and snap from the 802.11 payload */
10768+ memcpy(skb->data + ETH_HLEN,
10769+ e_llc, payload_length);
10770+
10771+ } else {
10772+ /* wlan frame body contains: AA AA 03 00 00 00 [type] [tail] */
10773+ /* build eth hdr, type=[type], copy [tail] as eth body */
10774+ log(L_DEBUG|L_DATA, "rx: 802.1h/RFC1042 len=%d\n",
10775+ payload_length);
10776+ /* it's an 802.1h frame (an RFC1042 && protocol is not in STT) */
10777+ /* build a DIXII + RFC894 */
10778+
10779+ payload_length -= sizeof(wlan_llc_t) + sizeof(wlan_snap_t);
10780+ if (unlikely(payload_length > mtu)) {
10781+ printk("%s: rx: DIXII frame too large (%d > %d)\n",
10782+ adev->ndev->name,
10783+ payload_length, mtu);
10784+ goto ret_null;
10785+ }
10786+
10787+ /* allocate space and setup host buffer */
10788+ buflen = payload_length + ETH_HLEN;
10789+ skb = dev_alloc_skb(buflen + 2);
10790+ if (unlikely(!skb))
10791+ goto no_skb;
10792+ skb_reserve(skb, 2);
10793+ skb_put(skb, buflen); /* make room */
10794+
10795+ /* create 802.3 header */
10796+ e_hdr = (wlan_ethhdr_t *) skb->data;
10797+ MAC_COPY(e_hdr->daddr, daddr);
10798+ MAC_COPY(e_hdr->saddr, saddr);
10799+ e_hdr->type = e_snap->type;
10800+
10801+ /* Now copy the data from the 80211 frame.
10802+ Make room in front for the eth header, and cut off the
10803+ llc and snap from the 802.11 payload */
10804+ memcpy(skb->data + ETH_HLEN,
10805+ e_payload, payload_length);
10806+ }
10807+
10808+ } else {
10809+ log(L_DEBUG|L_DATA, "rx: NON-ENCAP len=%d\n", payload_length);
10810+ /* build eth hdr, type=len, copy wlan body as eth body */
10811+ /* any NON-ENCAP */
10812+ /* it's a generic 80211+LLC or IPX 'Raw 802.3' */
10813+ /* build an 802.3 frame */
10814+
10815+ if (unlikely(payload_length > mtu)) {
10816+ printk("%s: rx: OTHER frame too large (%d > %d)\n",
10817+ adev->ndev->name, payload_length, mtu);
10818+ goto ret_null;
10819+ }
10820+
10821+ /* allocate space and setup host buffer */
10822+ buflen = payload_length + ETH_HLEN;
10823+ skb = dev_alloc_skb(buflen + 2);
10824+ if (unlikely(!skb))
10825+ goto no_skb;
10826+ skb_reserve(skb, 2);
10827+ skb_put(skb, buflen); /* make room */
10828+
10829+ /* set up the 802.3 header */
10830+ e_hdr = (wlan_ethhdr_t *) skb->data;
10831+ MAC_COPY(e_hdr->daddr, daddr);
10832+ MAC_COPY(e_hdr->saddr, saddr);
10833+ e_hdr->type = htons(payload_length);
10834+
10835+ /* now copy the data from the 80211 frame */
10836+ memcpy(skb->data + ETH_HLEN, e_llc, payload_length);
10837+ }
10838+
10839+ skb->dev = adev->ndev;
10840+ skb->protocol = eth_type_trans(skb, adev->ndev);
10841+
10842+#ifdef DEBUG_CONVERT
10843+ if (acx_debug & L_DATA) {
10844+ int len = RXBUF_BYTES_RCVD(adev, rxbuf);
10845+ printk("p802.11 frame [%d]: ", len);
10846+ acx_dump_bytes(w_hdr, len);
10847+ printk("eth frame [%d]: ", skb->len);
10848+ acx_dump_bytes(skb->data, skb->len);
10849+ }
10850+#endif
10851+
10852+ FN_EXIT0;
10853+ return skb;
10854+
10855+no_skb:
10856+ printk("%s: rx: no memory for skb (%d bytes)\n",
10857+ adev->ndev->name, buflen + 2);
10858+ret_null:
10859+ FN_EXIT1((int)NULL);
10860+ return NULL;
10861+}
10862Index: linux-2.6.22/drivers/net/wireless/acx/cs.c
10863===================================================================
10864--- /dev/null 1970-01-01 00:00:00.000000000 +0000
10865+++ linux-2.6.22/drivers/net/wireless/acx/cs.c 2007-08-23 18:34:19.000000000 +0200
10866@@ -0,0 +1,5703 @@
10867+/***********************************************************************
10868+** Copyright (C) 2003 ACX100 Open Source Project
10869+**
10870+** The contents of this file are subject to the Mozilla Public
10871+** License Version 1.1 (the "License"); you may not use this file
10872+** except in compliance with the License. You may obtain a copy of
10873+** the License at http://www.mozilla.org/MPL/
10874+**
10875+** Software distributed under the License is distributed on an "AS
10876+** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
10877+** implied. See the License for the specific language governing
10878+** rights and limitations under the License.
10879+**
10880+** Alternatively, the contents of this file may be used under the
10881+** terms of the GNU Public License version 2 (the "GPL"), in which
10882+** case the provisions of the GPL are applicable instead of the
10883+** above. If you wish to allow the use of your version of this file
10884+** only under the terms of the GPL and not to allow others to use
10885+** your version of this file under the MPL, indicate your decision
10886+** by deleting the provisions above and replace them with the notice
10887+** and other provisions required by the GPL. If you do not delete
10888+** the provisions above, a recipient may use your version of this
10889+** file under either the MPL or the GPL.
10890+** ---------------------------------------------------------------------
10891+** Inquiries regarding the ACX100 Open Source Project can be
10892+** made directly to:
10893+**
10894+** acx100-users@lists.sf.net
10895+** http://acx100.sf.net
10896+** ---------------------------------------------------------------------
10897+**
10898+** Slave memory interface support:
10899+**
10900+** Todd Blumer - SDG Systems
10901+** Bill Reese - HP
10902+** Eric McCorkle - Shadowsun
10903+**
10904+** CF support, (c) Fabrice Crohas, Paul Sokolovsky
10905+*/
10906+#define ACX_MEM 1
10907+
10908+/*
10909+ * non-zero makes it dump the ACX memory to the console then
10910+ * panic when you cat /proc/driver/acx_wlan0_diag
10911+ */
10912+#define DUMP_MEM_DEFINED 1
10913+
10914+#define DUMP_MEM_DURING_DIAG 0
10915+#define DUMP_IF_SLOW 0
10916+
10917+#define PATCH_AROUND_BAD_SPOTS 1
10918+#define HX4700_FIRMWARE_CHECKSUM 0x0036862e
10919+#define HX4700_ALTERNATE_FIRMWARE_CHECKSUM 0x00368a75
10920+
10921+#include <linux/version.h>
10922+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18)
10923+#include <linux/config.h>
10924+#endif
10925+
10926+/* Linux 2.6.18+ uses <linux/utsrelease.h> */
10927+#ifndef UTS_RELEASE
10928+#include <linux/utsrelease.h>
10929+#endif
10930+
10931+#include <linux/compiler.h> /* required for Lx 2.6.8 ?? */
10932+#include <linux/kernel.h>
10933+#include <linux/module.h>
10934+#include <linux/moduleparam.h>
10935+#include <linux/sched.h>
10936+#include <linux/types.h>
10937+#include <linux/skbuff.h>
10938+#include <linux/slab.h>
10939+#include <linux/if_arp.h>
10940+#include <linux/irq.h>
10941+#include <linux/rtnetlink.h>
10942+#include <linux/wireless.h>
10943+#include <net/iw_handler.h>
10944+#include <linux/netdevice.h>
10945+#include <linux/ioport.h>
10946+#include <linux/pci.h>
10947+#include <linux/platform_device.h>
10948+#include <linux/pm.h>
10949+#include <linux/vmalloc.h>
10950+#include <linux/delay.h>
10951+#include <linux/workqueue.h>
10952+#include <linux/inetdevice.h>
10953+
10954+#define PCMCIA_DEBUG 1
10955+
10956+/*
10957+ All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If
10958+ you do not define PCMCIA_DEBUG at all, all the debug code will be
10959+ left out. If you compile with PCMCIA_DEBUG=0, the debug code will
10960+ be present but disabled -- but it can then be enabled for specific
10961+ modules at load time with a 'pc_debug=#' option to insmod.
10962+
10963+*/
10964+#include <pcmcia/cs_types.h>
10965+#include <pcmcia/cs.h>
10966+#include <pcmcia/cistpl.h>
10967+#include <pcmcia/cisreg.h>
10968+#include <pcmcia/ds.h>
10969+#include "acx.h"
10970+#include "acx_hw.h"
10971+
10972+#ifdef PCMCIA_DEBUG
10973+static int pc_debug = PCMCIA_DEBUG;
10974+module_param(pc_debug, int, 0);
10975+static char *version = "$Revision: 1.10 $";
10976+#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args);
10977+#else
10978+#define DEBUG(n, args...)
10979+#endif
10980+
10981+
10982+static win_req_t memwin;
10983+
10984+typedef struct local_info_t {
10985+ dev_node_t node;
10986+ struct net_device *ndev;
10987+} local_info_t;
10988+
10989+static struct net_device *resume_ndev;
10990+
10991+
10992+/***********************************************************************
10993+*/
10994+
10995+#define CARD_EEPROM_ID_SIZE 6
10996+
10997+#include <asm/io.h>
10998+
10999+#define REG_ACX_VENDOR_ID 0x900
11000+/*
11001+ * This is the vendor id on the HX4700, anyway
11002+ */
11003+#define ACX_VENDOR_ID 0x8400104c
11004+
11005+typedef enum {
11006+ ACX_SOFT_RESET = 0,
11007+
11008+ ACX_SLV_REG_ADDR,
11009+ ACX_SLV_REG_DATA,
11010+ ACX_SLV_REG_ADATA,
11011+
11012+ ACX_SLV_MEM_CP,
11013+ ACX_SLV_MEM_ADDR,
11014+ ACX_SLV_MEM_DATA,
11015+ ACX_SLV_MEM_CTL,
11016+} acxreg_t;
11017+
11018+/***********************************************************************
11019+*/
11020+static void acxmem_i_tx_timeout(struct net_device *ndev);
11021+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
11022+static irqreturn_t acxmem_i_interrupt(int irq, void *dev_id);
11023+#else
11024+static irqreturn_t acxmem_i_interrupt(int irq, void *dev_id, struct pt_regs *regs);
11025+#endif
11026+static void acxmem_i_set_multicast_list(struct net_device *ndev);
11027+
11028+static int acxmem_e_open(struct net_device *ndev);
11029+static int acxmem_e_close(struct net_device *ndev);
11030+static void acxmem_s_up(struct net_device *ndev);
11031+static void acxmem_s_down(struct net_device *ndev);
11032+
11033+static void dump_acxmem (acx_device_t *adev, u32 start, int length);
11034+static int acxmem_complete_hw_reset (acx_device_t *adev);
11035+static void acxmem_s_delete_dma_regions(acx_device_t *adev);
11036+
11037+static int
11038+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
11039+acxmem_e_suspend( struct net_device *ndev, pm_message_t state);
11040+#else
11041+acxmem_e_suspend( struct net_device *ndev, u32 state);
11042+#endif
11043+static void
11044+fw_resumer(struct work_struct *notused);
11045+//fw_resumer( void *data );
11046+
11047+static int acx_netdev_event(struct notifier_block *this, unsigned long event, void *ptr)
11048+{
11049+ struct net_device *ndev = ptr;
11050+ acx_device_t *adev = ndev2adev(ndev);
11051+
11052+ /*
11053+ * Upper level ioctl() handlers send a NETDEV_CHANGEADDR if the MAC address changes.
11054+ */
11055+
11056+ if (NETDEV_CHANGEADDR == event) {
11057+ /*
11058+ * the upper layers put the new MAC address in ndev->dev_addr; we just copy
11059+ * it over and update the ACX with it.
11060+ */
11061+ MAC_COPY(adev->dev_addr, adev->ndev->dev_addr);
11062+ adev->set_mask |= GETSET_STATION_ID;
11063+ acx_s_update_card_settings (adev);
11064+ }
11065+
11066+ return 0;
11067+}
11068+
11069+static struct notifier_block acx_netdev_notifier = {
11070+ .notifier_call = acx_netdev_event,
11071+};
11072+
11073+/***********************************************************************
11074+** Register access
11075+*/
11076+
11077+/* Pick one */
11078+/* #define INLINE_IO static */
11079+#define INLINE_IO static inline
11080+
11081+INLINE_IO u32
11082+read_id_register (acx_device_t *adev)
11083+{
11084+ writel (0x24, &adev->iobase[ACX_SLV_REG_ADDR]);
11085+ return readl (&adev->iobase[ACX_SLV_REG_DATA]);
11086+}
11087+
11088+INLINE_IO u32
11089+read_reg32(acx_device_t *adev, unsigned int offset)
11090+{
11091+ u32 val;
11092+ u32 addr;
11093+
11094+ if (offset > IO_ACX_ECPU_CTRL)
11095+ addr = offset;
11096+ else
11097+ addr = adev->io[offset];
11098+
11099+ if (addr < 0x20) {
11100+ return readl(((u8*)adev->iobase) + addr);
11101+ }
11102+
11103+ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
11104+ val = readl( &adev->iobase[ACX_SLV_REG_DATA] );
11105+
11106+ return val;
11107+}
11108+
11109+INLINE_IO u16
11110+read_reg16(acx_device_t *adev, unsigned int offset)
11111+{
11112+ u16 lo;
11113+ u32 addr;
11114+
11115+ if (offset > IO_ACX_ECPU_CTRL)
11116+ addr = offset;
11117+ else
11118+ addr = adev->io[offset];
11119+
11120+ if (addr < 0x20) {
11121+ return readw(((u8 *) adev->iobase) + addr);
11122+ }
11123+
11124+ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
11125+ lo = readw( (u16 *)&adev->iobase[ACX_SLV_REG_DATA] );
11126+
11127+ return lo;
11128+}
11129+
11130+INLINE_IO u8
11131+read_reg8(acx_device_t *adev, unsigned int offset)
11132+{
11133+ u8 lo;
11134+ u32 addr;
11135+
11136+ if (offset > IO_ACX_ECPU_CTRL)
11137+ addr = offset;
11138+ else
11139+ addr = adev->io[offset];
11140+
11141+ if (addr < 0x20)
11142+ return readb(((u8 *)adev->iobase) + addr);
11143+
11144+ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
11145+ lo = readw( (u8 *)&adev->iobase[ACX_SLV_REG_DATA] );
11146+
11147+ return (u8)lo;
11148+}
11149+
11150+INLINE_IO void
11151+write_reg32(acx_device_t *adev, unsigned int offset, u32 val)
11152+{
11153+ u32 addr;
11154+
11155+ if (offset > IO_ACX_ECPU_CTRL)
11156+ addr = offset;
11157+ else
11158+ addr = adev->io[offset];
11159+
11160+ if (addr < 0x20) {
11161+ writel(val, ((u8*)adev->iobase) + addr);
11162+ return;
11163+ }
11164+
11165+ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
11166+ writel( val, &adev->iobase[ACX_SLV_REG_DATA] );
11167+}
11168+
11169+INLINE_IO void
11170+write_reg16(acx_device_t *adev, unsigned int offset, u16 val)
11171+{
11172+ u32 addr;
11173+
11174+ if (offset > IO_ACX_ECPU_CTRL)
11175+ addr = offset;
11176+ else
11177+ addr = adev->io[offset];
11178+
11179+ if (addr < 0x20) {
11180+ writew(val, ((u8 *)adev->iobase) + addr);
11181+ return;
11182+ }
11183+ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
11184+ writew( val, (u16 *) &adev->iobase[ACX_SLV_REG_DATA] );
11185+}
11186+
11187+INLINE_IO void
11188+write_reg8(acx_device_t *adev, unsigned int offset, u8 val)
11189+{
11190+ u32 addr;
11191+
11192+ if (offset > IO_ACX_ECPU_CTRL)
11193+ addr = offset;
11194+ else
11195+ addr = adev->io[offset];
11196+
11197+ if (addr < 0x20) {
11198+ writeb(val, ((u8 *) adev->iobase) + addr);
11199+ return;
11200+ }
11201+ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
11202+ writeb( val, (u8 *)&adev->iobase[ACX_SLV_REG_DATA] );
11203+}
11204+
11205+/* Handle PCI posting properly:
11206+ * Make sure that writes reach the adapter in case they require to be executed
11207+ * *before* the next write, by reading a random (and safely accessible) register.
11208+ * This call has to be made if there is no read following (which would flush the data
11209+ * to the adapter), yet the written data has to reach the adapter immediately. */
11210+INLINE_IO void
11211+write_flush(acx_device_t *adev)
11212+{
11213+ /* readb(adev->iobase + adev->io[IO_ACX_INFO_MAILBOX_OFFS]); */
11214+ /* faster version (accesses the first register, IO_ACX_SOFT_RESET,
11215+ * which should also be safe): */
11216+ (void) readl(adev->iobase);
11217+}
11218+
11219+INLINE_IO void
11220+set_regbits (acx_device_t *adev, unsigned int offset, u32 bits) {
11221+ u32 tmp;
11222+
11223+ tmp = read_reg32 (adev, offset);
11224+ tmp = tmp | bits;
11225+ write_reg32 (adev, offset, tmp);
11226+ write_flush (adev);
11227+}
11228+
11229+INLINE_IO void
11230+clear_regbits (acx_device_t *adev, unsigned int offset, u32 bits) {
11231+ u32 tmp;
11232+
11233+ tmp = read_reg32 (adev, offset);
11234+ tmp = tmp & ~bits;
11235+ write_reg32 (adev, offset, tmp);
11236+ write_flush (adev);
11237+}
11238+
11239+/*
11240+ * Copy from PXA memory to the ACX memory. This assumes both the PXA and ACX
11241+ * addresses are 32 bit aligned. Count is in bytes.
11242+ */
11243+INLINE_IO void
11244+write_slavemem32 (acx_device_t *adev, u32 slave_address, u32 val)
11245+{
11246+ write_reg32 (adev, IO_ACX_SLV_MEM_CTL, 0x0);
11247+ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, slave_address);
11248+ udelay (10);
11249+ write_reg32 (adev, IO_ACX_SLV_MEM_DATA, val);
11250+}
11251+
11252+INLINE_IO u32
11253+read_slavemem32 (acx_device_t *adev, u32 slave_address)
11254+{
11255+ u32 val;
11256+
11257+ write_reg32 (adev, IO_ACX_SLV_MEM_CTL, 0x0);
11258+ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, slave_address);
11259+ udelay (10);
11260+ val = read_reg32 (adev, IO_ACX_SLV_MEM_DATA);
11261+
11262+ return val;
11263+}
11264+
11265+INLINE_IO void
11266+write_slavemem8 (acx_device_t *adev, u32 slave_address, u8 val)
11267+{
11268+ u32 data;
11269+ u32 base;
11270+ int offset;
11271+
11272+ /*
11273+ * Get the word containing the target address and the byte offset in that word.
11274+ */
11275+ base = slave_address & ~3;
11276+ offset = (slave_address & 3) * 8;
11277+
11278+ data = read_slavemem32 (adev, base);
11279+ data &= ~(0xff << offset);
11280+ data |= val << offset;
11281+ write_slavemem32 (adev, base, data);
11282+}
11283+
11284+INLINE_IO u8
11285+read_slavemem8 (acx_device_t *adev, u32 slave_address)
11286+{
11287+ u8 val;
11288+ u32 base;
11289+ u32 data;
11290+ int offset;
11291+
11292+ base = slave_address & ~3;
11293+ offset = (slave_address & 3) * 8;
11294+
11295+ data = read_slavemem32 (adev, base);
11296+
11297+ val = (data >> offset) & 0xff;
11298+
11299+ return val;
11300+}
11301+
11302+/*
11303+ * doesn't split across word boundaries
11304+ */
11305+INLINE_IO void
11306+write_slavemem16 (acx_device_t *adev, u32 slave_address, u16 val)
11307+{
11308+ u32 data;
11309+ u32 base;
11310+ int offset;
11311+
11312+ /*
11313+ * Get the word containing the target address and the byte offset in that word.
11314+ */
11315+ base = slave_address & ~3;
11316+ offset = (slave_address & 3) * 8;
11317+
11318+ data = read_slavemem32 (adev, base);
11319+ data &= ~(0xffff << offset);
11320+ data |= val << offset;
11321+ write_slavemem32 (adev, base, data);
11322+}
11323+
11324+/*
11325+ * doesn't split across word boundaries
11326+ */
11327+INLINE_IO u16
11328+read_slavemem16 (acx_device_t *adev, u32 slave_address)
11329+{
11330+ u16 val;
11331+ u32 base;
11332+ u32 data;
11333+ int offset;
11334+
11335+ base = slave_address & ~3;
11336+ offset = (slave_address & 3) * 8;
11337+
11338+ data = read_slavemem32 (adev, base);
11339+
11340+ val = (data >> offset) & 0xffff;
11341+
11342+ return val;
11343+}
11344+
11345+/*
11346+ * Copy from slave memory
11347+ *
11348+ * TODO - rewrite using address autoincrement, handle partial words
11349+ */
11350+void
11351+copy_from_slavemem (acx_device_t *adev, u8 *destination, u32 source, int count) {
11352+ u32 tmp = 0;
11353+ u8 *ptmp = (u8 *) &tmp;
11354+
11355+ /*
11356+ * Right now I'm making the assumption that the destination is aligned, but
11357+ * I'd better check.
11358+ */
11359+ if ((u32) destination & 3) {
11360+ printk ("acx copy_from_slavemem: warning! destination not word-aligned!\n");
11361+ }
11362+
11363+ while (count >= 4) {
11364+ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, source);
11365+ udelay (10);
11366+ *((u32 *) destination) = read_reg32 (adev, IO_ACX_SLV_MEM_DATA);
11367+ count -= 4;
11368+ source += 4;
11369+ destination += 4;
11370+ }
11371+
11372+ /*
11373+ * If the word reads above didn't satisfy the count, read one more word
11374+ * and transfer a byte at a time until the request is satisfied.
11375+ */
11376+ if (count) {
11377+ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, source);
11378+ udelay (10);
11379+ tmp = read_reg32 (adev, IO_ACX_SLV_MEM_DATA);
11380+ while (count--) {
11381+ *destination++ = *ptmp++;
11382+ }
11383+ }
11384+}
11385+
11386+/*
11387+ * Copy to slave memory
11388+ *
11389+ * TODO - rewrite using autoincrement, handle partial words
11390+ */
11391+void
11392+copy_to_slavemem (acx_device_t *adev, u32 destination, u8 *source, int count)
11393+{
11394+ u32 tmp = 0;
11395+ u8* ptmp = (u8 *) &tmp;
11396+ static u8 src[512]; /* make static to avoid huge stack objects */
11397+
11398+ /*
11399+ * For now, make sure the source is word-aligned by copying it to a word-aligned
11400+ * buffer. Someday rewrite to avoid the extra copy.
11401+ */
11402+ if (count > sizeof (src)) {
11403+ printk ("acx copy_to_slavemem: Warning! buffer overflow!\n");
11404+ count = sizeof (src);
11405+ }
11406+ memcpy (src, source, count);
11407+ source = src;
11408+
11409+ while (count >= 4) {
11410+ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, destination);
11411+ udelay (10);
11412+ write_reg32 (adev, IO_ACX_SLV_MEM_DATA, *((u32 *) source));
11413+ count -= 4;
11414+ source += 4;
11415+ destination += 4;
11416+ }
11417+
11418+ /*
11419+ * If there are leftovers read the next word from the acx and merge in
11420+ * what they want to write.
11421+ */
11422+ if (count) {
11423+ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, destination);
11424+ udelay (10);
11425+ tmp = read_reg32 (adev, IO_ACX_SLV_MEM_DATA);
11426+ while (count--) {
11427+ *ptmp++ = *source++;
11428+ }
11429+ /*
11430+ * reset address in case we're currently in auto-increment mode
11431+ */
11432+ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, destination);
11433+ udelay (10);
11434+ write_reg32 (adev, IO_ACX_SLV_MEM_DATA, tmp);
11435+ udelay (10);
11436+ }
11437+
11438+}
11439+
11440+/*
11441+ * Block copy to slave buffers using memory block chain mode. Copies to the ACX
11442+ * transmit buffer structure with minimal intervention on our part.
11443+ * Interrupts should be disabled when calling this.
11444+ */
11445+void
11446+chaincopy_to_slavemem (acx_device_t *adev, u32 destination, u8 *source, int count)
11447+{
11448+ u32 val;
11449+ u32 *data = (u32 *) source;
11450+ static u8 aligned_source[WLAN_A4FR_MAXLEN_WEP_FCS];
11451+
11452+ /*
11453+ * Warn if the pointers don't look right. Destination must fit in [23:5] with
11454+ * zero elsewhere and source should be 32 bit aligned.
11455+ * This should never happen since we're in control of both, but I want to know about
11456+ * it if it does.
11457+ */
11458+ if ((destination & 0x00ffffe0) != destination) {
11459+ printk ("acx chaincopy: destination block 0x%04x not aligned!\n", destination);
11460+ }
11461+ if (count > sizeof aligned_source) {
11462+ printk( KERN_ERR "chaincopy_to_slavemem overflow!\n" );
11463+ count = sizeof aligned_source;
11464+ }
11465+ if ((u32) source & 3) {
11466+ memcpy (aligned_source, source, count);
11467+ data = (u32 *) aligned_source;
11468+ }
11469+
11470+ /*
11471+ * SLV_MEM_CTL[17:16] = memory block chain mode with auto-increment
11472+ * SLV_MEM_CTL[5:2] = offset to data portion = 1 word
11473+ */
11474+ val = 2 << 16 | 1 << 2;
11475+ writel (val, &adev->iobase[ACX_SLV_MEM_CTL]);
11476+
11477+ /*
11478+ * SLV_MEM_CP[23:5] = start of 1st block
11479+ * SLV_MEM_CP[3:2] = offset to memblkptr = 0
11480+ */
11481+ val = destination & 0x00ffffe0;
11482+ writel (val, &adev->iobase[ACX_SLV_MEM_CP]);
11483+
11484+ /*
11485+ * SLV_MEM_ADDR[23:2] = SLV_MEM_CTL[5:2] + SLV_MEM_CP[23:5]
11486+ */
11487+ val = (destination & 0x00ffffe0) + (1<<2);
11488+ writel (val, &adev->iobase[ACX_SLV_MEM_ADDR]);
11489+
11490+ /*
11491+ * Write the data to the slave data register, rounding up to the end
11492+ * of the word containing the last byte (hence the > 0)
11493+ */
11494+ while (count > 0) {
11495+ writel (*data++, &adev->iobase[ACX_SLV_MEM_DATA]);
11496+ count -= 4;
11497+ }
11498+}
11499+
11500+
11501+/*
11502+ * Block copy from slave buffers using memory block chain mode. Copies from the ACX
11503+ * receive buffer structures with minimal intervention on our part.
11504+ * Interrupts should be disabled when calling this.
11505+ */
11506+void
11507+chaincopy_from_slavemem (acx_device_t *adev, u8 *destination, u32 source, int count)
11508+{
11509+ u32 val;
11510+ u32 *data = (u32 *) destination;
11511+ static u8 aligned_destination[WLAN_A4FR_MAXLEN_WEP_FCS];
11512+ int saved_count = count;
11513+
11514+ /*
11515+ * Warn if the pointers don't look right. Destination must fit in [23:5] with
11516+ * zero elsewhere and source should be 32 bit aligned.
11517+ * Turns out the network stack sends unaligned things, so fix them before
11518+ * copying to the ACX.
11519+ */
11520+ if ((source & 0x00ffffe0) != source) {
11521+ printk ("acx chaincopy: source block 0x%04x not aligned!\n", source);
11522+ dump_acxmem (adev, 0, 0x10000);
11523+ }
11524+ if ((u32) destination & 3) {
11525+ //printk ("acx chaincopy: data destination not word aligned!\n");
11526+ data = (u32 *) aligned_destination;
11527+ if (count > sizeof aligned_destination) {
11528+ printk( KERN_ERR "chaincopy_from_slavemem overflow!\n" );
11529+ count = sizeof aligned_destination;
11530+ }
11531+ }
11532+
11533+ /*
11534+ * SLV_MEM_CTL[17:16] = memory block chain mode with auto-increment
11535+ * SLV_MEM_CTL[5:2] = offset to data portion = 1 word
11536+ */
11537+ val = (2 << 16) | (1 << 2);
11538+ writel (val, &adev->iobase[ACX_SLV_MEM_CTL]);
11539+
11540+ /*
11541+ * SLV_MEM_CP[23:5] = start of 1st block
11542+ * SLV_MEM_CP[3:2] = offset to memblkptr = 0
11543+ */
11544+ val = source & 0x00ffffe0;
11545+ writel (val, &adev->iobase[ACX_SLV_MEM_CP]);
11546+
11547+ /*
11548+ * SLV_MEM_ADDR[23:2] = SLV_MEM_CTL[5:2] + SLV_MEM_CP[23:5]
11549+ */
11550+ val = (source & 0x00ffffe0) + (1<<2);
11551+ writel (val, &adev->iobase[ACX_SLV_MEM_ADDR]);
11552+
11553+ /*
11554+ * Read the data from the slave data register, rounding up to the end
11555+ * of the word containing the last byte (hence the > 0)
11556+ */
11557+ while (count > 0) {
11558+ *data++ = readl (&adev->iobase[ACX_SLV_MEM_DATA]);
11559+ count -= 4;
11560+ }
11561+
11562+ /*
11563+ * If the destination wasn't aligned, we would have saved it in
11564+ * the aligned buffer, so copy it where it should go.
11565+ */
11566+ if ((u32) destination & 3) {
11567+ memcpy (destination, aligned_destination, saved_count);
11568+ }
11569+}
11570+
11571+char
11572+printable (char c)
11573+{
11574+ return ((c >= 20) && (c < 127)) ? c : '.';
11575+}
11576+
11577+#if DUMP_MEM_DEFINED > 0
11578+static void
11579+dump_acxmem (acx_device_t *adev, u32 start, int length)
11580+{
11581+ int i;
11582+ u8 buf[16];
11583+
11584+ while (length > 0) {
11585+ printk ("%04x ", start);
11586+ copy_from_slavemem (adev, buf, start, 16);
11587+ for (i = 0; (i < 16) && (i < length); i++) {
11588+ printk ("%02x ", buf[i]);
11589+ }
11590+ for (i = 0; (i < 16) && (i < length); i++) {
11591+ printk ("%c", printable (buf[i]));
11592+ }
11593+ printk ("\n");
11594+ start += 16;
11595+ length -= 16;
11596+ }
11597+}
11598+#endif
11599+
11600+static void
11601+enable_acx_irq(acx_device_t *adev);
11602+static void
11603+disable_acx_irq(acx_device_t *adev);
11604+
11605+/*
11606+ * Return an acx pointer to the next transmit data block.
11607+ */
11608+u32
11609+allocate_acx_txbuf_space (acx_device_t *adev, int count) {
11610+ u32 block, next, last_block;
11611+ int blocks_needed;
11612+ unsigned long flags;
11613+
11614+ spin_lock_irqsave(&adev->txbuf_lock, flags);
11615+ /*
11616+ * Take 4 off the memory block size to account for the reserved word at the start of
11617+ * the block.
11618+ */
11619+ blocks_needed = count / (adev->memblocksize - 4);
11620+ if (count % (adev->memblocksize - 4))
11621+ blocks_needed++;
11622+
11623+ if (blocks_needed <= adev->acx_txbuf_blocks_free) {
11624+ /*
11625+ * Take blocks at the head of the free list.
11626+ */
11627+ last_block = block = adev->acx_txbuf_free;
11628+
11629+ /*
11630+ * Follow block pointers through the requested number of blocks both to
11631+ * find the new head of the free list and to set the flags for the blocks
11632+ * appropriately.
11633+ */
11634+ while (blocks_needed--) {
11635+ /*
11636+ * Keep track of the last block of the allocation
11637+ */
11638+ last_block = adev->acx_txbuf_free;
11639+
11640+ /*
11641+ * Make sure the end control flag is not set.
11642+ */
11643+ next = read_slavemem32 (adev, adev->acx_txbuf_free) & 0x7ffff;
11644+ write_slavemem32 (adev, adev->acx_txbuf_free, next);
11645+
11646+ /*
11647+ * Update the new head of the free list
11648+ */
11649+ adev->acx_txbuf_free = next << 5;
11650+ adev->acx_txbuf_blocks_free--;
11651+
11652+ }
11653+
11654+ /*
11655+ * Flag the last block both by clearing out the next pointer
11656+ * and marking the control field.
11657+ */
11658+ write_slavemem32 (adev, last_block, 0x02000000);
11659+
11660+ /*
11661+ * If we're out of buffers make sure the free list pointer is NULL
11662+ */
11663+ if (!adev->acx_txbuf_blocks_free) {
11664+ adev->acx_txbuf_free = 0;
11665+ }
11666+ }
11667+ else {
11668+ block = 0;
11669+ }
11670+ spin_unlock_irqrestore (&adev->txbuf_lock, flags);
11671+ return block;
11672+}
11673+
11674+/*
11675+ * Return buffer space back to the pool by following the next pointers until we find
11676+ * the block marked as the end. Point the last block to the head of the free list,
11677+ * then update the head of the free list to point to the newly freed memory.
11678+ * This routine gets called in interrupt context, so it shouldn't block to protect
11679+ * the integrity of the linked list. The ISR already holds the lock.
11680+ */
11681+void
11682+reclaim_acx_txbuf_space (acx_device_t *adev, u32 blockptr) {
11683+ u32 cur, last, next;
11684+ unsigned long flags;
11685+
11686+ spin_lock_irqsave (&adev->txbuf_lock, flags);
11687+ if ((blockptr >= adev->acx_txbuf_start) &&
11688+ (blockptr <= adev->acx_txbuf_start +
11689+ (adev->acx_txbuf_numblocks - 1) * adev->memblocksize)) {
11690+ cur = blockptr;
11691+ do {
11692+ last = cur;
11693+ next = read_slavemem32 (adev, cur);
11694+
11695+ /*
11696+ * Advance to the next block in this allocation
11697+ */
11698+ cur = (next & 0x7ffff) << 5;
11699+
11700+ /*
11701+ * This block now counts as free.
11702+ */
11703+ adev->acx_txbuf_blocks_free++;
11704+ } while (!(next & 0x02000000));
11705+
11706+ /*
11707+ * last now points to the last block of that allocation. Update the pointer
11708+ * in that block to point to the free list and reset the free list to the
11709+ * first block of the free call. If there were no free blocks, make sure
11710+ * the new end of the list marks itself as truly the end.
11711+ */
11712+ if (adev->acx_txbuf_free) {
11713+ write_slavemem32 (adev, last, adev->acx_txbuf_free >> 5);
11714+ }
11715+ else {
11716+ write_slavemem32 (adev, last, 0x02000000);
11717+ }
11718+ adev->acx_txbuf_free = blockptr;
11719+ }
11720+ spin_unlock_irqrestore(&adev->txbuf_lock, flags);
11721+}
11722+
11723+/*
11724+ * Initialize the pieces managing the transmit buffer pool on the ACX. The transmit
11725+ * buffer is a circular queue with one 32 bit word reserved at the beginning of each
11726+ * block. The upper 13 bits are a control field, of which only 0x02000000 has any
11727+ * meaning. The lower 19 bits are the address of the next block divided by 32.
11728+ */
11729+void
11730+init_acx_txbuf (acx_device_t *adev) {
11731+
11732+ /*
11733+ * acx100_s_init_memory_pools set up txbuf_start and txbuf_numblocks for us.
11734+ * All we need to do is reset the rest of the bookeeping.
11735+ */
11736+
11737+ adev->acx_txbuf_free = adev->acx_txbuf_start;
11738+ adev->acx_txbuf_blocks_free = adev->acx_txbuf_numblocks;
11739+
11740+ /*
11741+ * Initialization leaves the last transmit pool block without a pointer back to
11742+ * the head of the list, but marked as the end of the list. That's how we want
11743+ * to see it, too, so leave it alone. This is only ever called after a firmware
11744+ * reset, so the ACX memory is in the state we want.
11745+ */
11746+
11747+}
11748+
11749+INLINE_IO int
11750+adev_present(acx_device_t *adev)
11751+{
11752+ /* fast version (accesses the first register, IO_ACX_SOFT_RESET,
11753+ * which should be safe): */
11754+ return readl(adev->iobase) != 0xffffffff;
11755+}
11756+
11757+/***********************************************************************
11758+*/
11759+static inline txdesc_t*
11760+get_txdesc(acx_device_t *adev, int index)
11761+{
11762+ return (txdesc_t*) (((u8*)adev->txdesc_start) + index * adev->txdesc_size);
11763+}
11764+
11765+static inline txdesc_t*
11766+advance_txdesc(acx_device_t *adev, txdesc_t* txdesc, int inc)
11767+{
11768+ return (txdesc_t*) (((u8*)txdesc) + inc * adev->txdesc_size);
11769+}
11770+
11771+static txhostdesc_t*
11772+get_txhostdesc(acx_device_t *adev, txdesc_t* txdesc)
11773+{
11774+ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
11775+ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) {
11776+ printk("bad txdesc ptr %p\n", txdesc);
11777+ return NULL;
11778+ }
11779+ index /= adev->txdesc_size;
11780+ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) {
11781+ printk("bad txdesc ptr %p\n", txdesc);
11782+ return NULL;
11783+ }
11784+ return &adev->txhostdesc_start[index*2];
11785+}
11786+
11787+static inline client_t*
11788+get_txc(acx_device_t *adev, txdesc_t* txdesc)
11789+{
11790+ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
11791+ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) {
11792+ printk("bad txdesc ptr %p\n", txdesc);
11793+ return NULL;
11794+ }
11795+ index /= adev->txdesc_size;
11796+ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) {
11797+ printk("bad txdesc ptr %p\n", txdesc);
11798+ return NULL;
11799+ }
11800+ return adev->txc[index];
11801+}
11802+
11803+static inline u16
11804+get_txr(acx_device_t *adev, txdesc_t* txdesc)
11805+{
11806+ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
11807+ index /= adev->txdesc_size;
11808+ return adev->txr[index];
11809+}
11810+
11811+static inline void
11812+put_txcr(acx_device_t *adev, txdesc_t* txdesc, client_t* c, u16 r111)
11813+{
11814+ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
11815+ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) {
11816+ printk("bad txdesc ptr %p\n", txdesc);
11817+ return;
11818+ }
11819+ index /= adev->txdesc_size;
11820+ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) {
11821+ printk("bad txdesc ptr %p\n", txdesc);
11822+ return;
11823+ }
11824+ adev->txc[index] = c;
11825+ adev->txr[index] = r111;
11826+}
11827+
11828+
11829+/***********************************************************************
11830+** EEPROM and PHY read/write helpers
11831+*/
11832+/***********************************************************************
11833+** acxmem_read_eeprom_byte
11834+**
11835+** Function called to read an octet in the EEPROM.
11836+**
11837+** This function is used by acxmem_e_probe to check if the
11838+** connected card is a legal one or not.
11839+**
11840+** Arguments:
11841+** adev ptr to acx_device structure
11842+** addr address to read in the EEPROM
11843+** charbuf ptr to a char. This is where the read octet
11844+** will be stored
11845+*/
11846+int
11847+acxmem_read_eeprom_byte(acx_device_t *adev, u32 addr, u8 *charbuf)
11848+{
11849+ int result;
11850+ int count;
11851+
11852+ write_reg32(adev, IO_ACX_EEPROM_CFG, 0);
11853+ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr);
11854+ write_flush(adev);
11855+ write_reg32(adev, IO_ACX_EEPROM_CTL, 2);
11856+
11857+ count = 0xffff;
11858+ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) {
11859+ /* scheduling away instead of CPU burning loop
11860+ * doesn't seem to work here at all:
11861+ * awful delay, sometimes also failure.
11862+ * Doesn't matter anyway (only small delay). */
11863+ if (unlikely(!--count)) {
11864+ printk("%s: timeout waiting for EEPROM read\n",
11865+ adev->ndev->name);
11866+ result = NOT_OK;
11867+ goto fail;
11868+ }
11869+ cpu_relax();
11870+ }
11871+
11872+ *charbuf = read_reg8(adev, IO_ACX_EEPROM_DATA);
11873+ log(L_DEBUG, "EEPROM at 0x%04X = 0x%02X\n", addr, *charbuf);
11874+ result = OK;
11875+
11876+fail:
11877+ return result;
11878+}
11879+
11880+
11881+/***********************************************************************
11882+** We don't lock hw accesses here since we never r/w eeprom in IRQ
11883+** Note: this function sleeps only because of GFP_KERNEL alloc
11884+*/
11885+#ifdef UNUSED
11886+int
11887+acxmem_s_write_eeprom(acx_device_t *adev, u32 addr, u32 len, const u8 *charbuf)
11888+{
11889+ u8 *data_verify = NULL;
11890+ unsigned long flags;
11891+ int count, i;
11892+ int result = NOT_OK;
11893+ u16 gpio_orig;
11894+
11895+ printk("acx: WARNING! I would write to EEPROM now. "
11896+ "Since I really DON'T want to unless you know "
11897+ "what you're doing (THIS CODE WILL PROBABLY "
11898+ "NOT WORK YET!), I will abort that now. And "
11899+ "definitely make sure to make a "
11900+ "/proc/driver/acx_wlan0_eeprom backup copy first!!! "
11901+ "(the EEPROM content includes the PCI config header!! "
11902+ "If you kill important stuff, then you WILL "
11903+ "get in trouble and people DID get in trouble already)\n");
11904+ return OK;
11905+
11906+ FN_ENTER;
11907+
11908+ data_verify = kmalloc(len, GFP_KERNEL);
11909+ if (!data_verify) {
11910+ goto end;
11911+ }
11912+
11913+ /* first we need to enable the OE (EEPROM Output Enable) GPIO line
11914+ * to be able to write to the EEPROM.
11915+ * NOTE: an EEPROM writing success has been reported,
11916+ * but you probably have to modify GPIO_OUT, too,
11917+ * and you probably need to activate a different GPIO
11918+ * line instead! */
11919+ gpio_orig = read_reg16(adev, IO_ACX_GPIO_OE);
11920+ write_reg16(adev, IO_ACX_GPIO_OE, gpio_orig & ~1);
11921+ write_flush(adev);
11922+
11923+ /* ok, now start writing the data out */
11924+ for (i = 0; i < len; i++) {
11925+ write_reg32(adev, IO_ACX_EEPROM_CFG, 0);
11926+ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr + i);
11927+ write_reg32(adev, IO_ACX_EEPROM_DATA, *(charbuf + i));
11928+ write_flush(adev);
11929+ write_reg32(adev, IO_ACX_EEPROM_CTL, 1);
11930+
11931+ count = 0xffff;
11932+ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) {
11933+ if (unlikely(!--count)) {
11934+ printk("WARNING, DANGER!!! "
11935+ "Timeout waiting for EEPROM write\n");
11936+ goto end;
11937+ }
11938+ cpu_relax();
11939+ }
11940+ }
11941+
11942+ /* disable EEPROM writing */
11943+ write_reg16(adev, IO_ACX_GPIO_OE, gpio_orig);
11944+ write_flush(adev);
11945+
11946+ /* now start a verification run */
11947+ for (i = 0; i < len; i++) {
11948+ write_reg32(adev, IO_ACX_EEPROM_CFG, 0);
11949+ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr + i);
11950+ write_flush(adev);
11951+ write_reg32(adev, IO_ACX_EEPROM_CTL, 2);
11952+
11953+ count = 0xffff;
11954+ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) {
11955+ if (unlikely(!--count)) {
11956+ printk("timeout waiting for EEPROM read\n");
11957+ goto end;
11958+ }
11959+ cpu_relax();
11960+ }
11961+
11962+ data_verify[i] = read_reg16(adev, IO_ACX_EEPROM_DATA);
11963+ }
11964+
11965+ if (0 == memcmp(charbuf, data_verify, len))
11966+ result = OK; /* read data matches, success */
11967+
11968+end:
11969+ kfree(data_verify);
11970+ FN_EXIT1(result);
11971+ return result;
11972+}
11973+#endif /* UNUSED */
11974+
11975+
11976+/***********************************************************************
11977+** acxmem_s_read_phy_reg
11978+**
11979+** Messing with rx/tx disabling and enabling here
11980+** (write_reg32(adev, IO_ACX_ENABLE, 0b000000xx)) kills traffic
11981+*/
11982+int
11983+acxmem_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf)
11984+{
11985+ int result = NOT_OK;
11986+ int count;
11987+
11988+ FN_ENTER;
11989+
11990+ write_reg32(adev, IO_ACX_PHY_ADDR, reg);
11991+ write_flush(adev);
11992+ write_reg32(adev, IO_ACX_PHY_CTL, 2);
11993+
11994+ count = 0xffff;
11995+ while (read_reg32(adev, IO_ACX_PHY_CTL)) {
11996+ /* scheduling away instead of CPU burning loop
11997+ * doesn't seem to work here at all:
11998+ * awful delay, sometimes also failure.
11999+ * Doesn't matter anyway (only small delay). */
12000+ if (unlikely(!--count)) {
12001+ printk("%s: timeout waiting for phy read\n",
12002+ adev->ndev->name);
12003+ *charbuf = 0;
12004+ goto fail;
12005+ }
12006+ cpu_relax();
12007+ }
12008+
12009+ log(L_DEBUG, "count was %u\n", count);
12010+ *charbuf = read_reg8(adev, IO_ACX_PHY_DATA);
12011+
12012+ log(L_DEBUG, "radio PHY at 0x%04X = 0x%02X\n", *charbuf, reg);
12013+ result = OK;
12014+ goto fail; /* silence compiler warning */
12015+fail:
12016+ FN_EXIT1(result);
12017+ return result;
12018+}
12019+
12020+
12021+/***********************************************************************
12022+*/
12023+int
12024+acxmem_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value)
12025+{
12026+ int count;
12027+ FN_ENTER;
12028+
12029+ /* mprusko said that 32bit accesses result in distorted sensitivity
12030+ * on his card. Unconfirmed, looks like it's not true (most likely since we
12031+ * now properly flush writes). */
12032+ write_reg32(adev, IO_ACX_PHY_DATA, value);
12033+ write_reg32(adev, IO_ACX_PHY_ADDR, reg);
12034+ write_flush(adev);
12035+ write_reg32(adev, IO_ACX_PHY_CTL, 1);
12036+ write_flush(adev);
12037+
12038+ count = 0xffff;
12039+ while (read_reg32(adev, IO_ACX_PHY_CTL)) {
12040+ /* scheduling away instead of CPU burning loop
12041+ * doesn't seem to work here at all:
12042+ * awful delay, sometimes also failure.
12043+ * Doesn't matter anyway (only small delay). */
12044+ if (unlikely(!--count)) {
12045+ printk("%s: timeout waiting for phy read\n",
12046+ adev->ndev->name);
12047+ goto fail;
12048+ }
12049+ cpu_relax();
12050+ }
12051+
12052+ log(L_DEBUG, "radio PHY write 0x%02X at 0x%04X\n", value, reg);
12053+ fail:
12054+ FN_EXIT1(OK);
12055+ return OK;
12056+}
12057+
12058+
12059+#define NO_AUTO_INCREMENT 1
12060+
12061+/***********************************************************************
12062+** acxmem_s_write_fw
12063+**
12064+** Write the firmware image into the card.
12065+**
12066+** Arguments:
12067+** adev wlan device structure
12068+** fw_image firmware image.
12069+**
12070+** Returns:
12071+** 1 firmware image corrupted
12072+** 0 success
12073+*/
12074+static int
12075+acxmem_s_write_fw(acx_device_t *adev, const firmware_image_t *fw_image, u32 offset)
12076+{
12077+ int len, size, checkMismatch = -1;
12078+ u32 sum, v32, tmp, id;
12079+ /* we skip the first four bytes which contain the control sum */
12080+ const u8 *p = (u8*)fw_image + 4;
12081+
12082+ /* start the image checksum by adding the image size value */
12083+ sum = p[0]+p[1]+p[2]+p[3];
12084+ p += 4;
12085+
12086+#ifdef NOPE
12087+#if NO_AUTO_INCREMENT
12088+ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 0); /* use basic mode */
12089+#else
12090+ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 1); /* use autoincrement mode */
12091+ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset); /* configure start address */
12092+ write_flush(adev);
12093+#endif
12094+#endif
12095+ len = 0;
12096+ size = le32_to_cpu(fw_image->size) & (~3);
12097+
12098+ while (likely(len < size)) {
12099+ v32 = be32_to_cpu(*(u32*)p);
12100+ sum += p[0]+p[1]+p[2]+p[3];
12101+ p += 4;
12102+ len += 4;
12103+
12104+#ifdef NOPE
12105+#if NO_AUTO_INCREMENT
12106+ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset + len - 4);
12107+ write_flush(adev);
12108+#endif
12109+ write_reg32(adev, IO_ACX_SLV_MEM_DATA, v32);
12110+ write_flush(adev);
12111+#endif
12112+ write_slavemem32 (adev, offset + len - 4, v32);
12113+
12114+ id = read_id_register (adev);
12115+
12116+ /*
12117+ * check the data written
12118+ */
12119+ tmp = read_slavemem32 (adev, offset + len - 4);
12120+ if (checkMismatch && (tmp != v32)) {
12121+ printk ("first data mismatch at 0x%08x good 0x%08x bad 0x%08x id 0x%08x\n",
12122+ offset + len - 4, v32, tmp, id);
12123+ checkMismatch = 0;
12124+ }
12125+ }
12126+ log(L_DEBUG, "firmware written, size:%d sum1:%x sum2:%x\n",
12127+ size, sum, le32_to_cpu(fw_image->chksum));
12128+
12129+ /* compare our checksum with the stored image checksum */
12130+ return (sum != le32_to_cpu(fw_image->chksum));
12131+}
12132+
12133+
12134+/***********************************************************************
12135+** acxmem_s_validate_fw
12136+**
12137+** Compare the firmware image given with
12138+** the firmware image written into the card.
12139+**
12140+** Arguments:
12141+** adev wlan device structure
12142+** fw_image firmware image.
12143+**
12144+** Returns:
12145+** NOT_OK firmware image corrupted or not correctly written
12146+** OK success
12147+*/
12148+static int
12149+acxmem_s_validate_fw(acx_device_t *adev, const firmware_image_t *fw_image,
12150+ u32 offset)
12151+{
12152+ u32 sum, v32, w32;
12153+ int len, size;
12154+ int result = OK;
12155+ /* we skip the first four bytes which contain the control sum */
12156+ const u8 *p = (u8*)fw_image + 4;
12157+
12158+ /* start the image checksum by adding the image size value */
12159+ sum = p[0]+p[1]+p[2]+p[3];
12160+ p += 4;
12161+
12162+ write_reg32(adev, IO_ACX_SLV_END_CTL, 0);
12163+
12164+#if NO_AUTO_INCREMENT
12165+ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 0); /* use basic mode */
12166+#else
12167+ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 1); /* use autoincrement mode */
12168+ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset); /* configure start address */
12169+#endif
12170+
12171+ len = 0;
12172+ size = le32_to_cpu(fw_image->size) & (~3);
12173+
12174+ while (likely(len < size)) {
12175+ v32 = be32_to_cpu(*(u32*)p);
12176+ p += 4;
12177+ len += 4;
12178+
12179+#ifdef NOPE
12180+#if NO_AUTO_INCREMENT
12181+ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset + len - 4);
12182+#endif
12183+ udelay(10);
12184+ w32 = read_reg32(adev, IO_ACX_SLV_MEM_DATA);
12185+#endif
12186+ w32 = read_slavemem32 (adev, offset + len - 4);
12187+
12188+ if (unlikely(w32 != v32)) {
12189+ printk("acx: FATAL: firmware upload: "
12190+ "data parts at offset %d don't match\n(0x%08X vs. 0x%08X)!\n"
12191+ "I/O timing issues or defective memory, with DWL-xx0+? "
12192+ "ACX_IO_WIDTH=16 may help. Please report\n",
12193+ len, v32, w32);
12194+ result = NOT_OK;
12195+ break;
12196+ }
12197+
12198+ sum += (u8)w32 + (u8)(w32>>8) + (u8)(w32>>16) + (u8)(w32>>24);
12199+ }
12200+
12201+ /* sum control verification */
12202+ if (result != NOT_OK) {
12203+ if (sum != le32_to_cpu(fw_image->chksum)) {
12204+ printk("acx: FATAL: firmware upload: "
12205+ "checksums don't match!\n");
12206+ result = NOT_OK;
12207+ }
12208+ }
12209+
12210+ return result;
12211+}
12212+
12213+
12214+/***********************************************************************
12215+** acxmem_s_upload_fw
12216+**
12217+** Called from acx_reset_dev
12218+*/
12219+static int
12220+acxmem_s_upload_fw(acx_device_t *adev)
12221+{
12222+ firmware_image_t *fw_image = NULL;
12223+ int res = NOT_OK;
12224+ int try;
12225+ u32 file_size;
12226+ char *filename = "WLANGEN.BIN";
12227+#ifdef PATCH_AROUND_BAD_SPOTS
12228+ u32 offset;
12229+ int i;
12230+ /*
12231+ * arm-linux-objdump -d patch.bin, or
12232+ * od -Ax -t x4 patch.bin after finding the bounds
12233+ * of the .text section with arm-linux-objdump -s patch.bin
12234+ */
12235+ u32 patch[] = {
12236+ 0xe584c030, 0xe59fc008,
12237+ 0xe92d1000, 0xe59fc004, 0xe8bd8000, 0x0000080c,
12238+ 0x0000aa68, 0x605a2200, 0x2c0a689c, 0x2414d80a,
12239+ 0x2f00689f, 0x1c27d007, 0x06241e7c, 0x2f000e24,
12240+ 0xe000d1f6, 0x602e6018, 0x23036468, 0x480203db,
12241+ 0x60ca6003, 0xbdf0750a, 0xffff0808
12242+ };
12243+#endif
12244+
12245+ FN_ENTER;
12246+ /* No combined image; tell common we need the radio firmware, too */
12247+ adev->need_radio_fw = 1;
12248+
12249+ fw_image = acx_s_read_fw(adev->dev, filename, &file_size);
12250+ if (!fw_image) {
12251+ FN_EXIT1(NOT_OK);
12252+ return NOT_OK;
12253+ }
12254+
12255+ for (try = 1; try <= 5; try++) {
12256+ res = acxmem_s_write_fw(adev, fw_image, 0);
12257+ log(L_DEBUG|L_INIT, "acx_write_fw (main): %d\n", res);
12258+ if (OK == res) {
12259+ res = acxmem_s_validate_fw(adev, fw_image, 0);
12260+ log(L_DEBUG|L_INIT, "acx_validate_fw "
12261+ "(main): %d\n", res);
12262+ }
12263+
12264+ if (OK == res) {
12265+ SET_BIT(adev->dev_state_mask, ACX_STATE_FW_LOADED);
12266+ break;
12267+ }
12268+ printk("acx: firmware upload attempt #%d FAILED, "
12269+ "retrying...\n", try);
12270+ acx_s_msleep(1000); /* better wait for a while... */
12271+ }
12272+
12273+#ifdef PATCH_AROUND_BAD_SPOTS
12274+ /*
12275+ * Only want to do this if the firmware is exactly what we expect for an
12276+ * iPaq 4700; otherwise, bad things would ensue.
12277+ */
12278+ if ((HX4700_FIRMWARE_CHECKSUM == fw_image->chksum) ||
12279+ (HX4700_ALTERNATE_FIRMWARE_CHECKSUM == fw_image->chksum)) {
12280+ /*
12281+ * Put the patch after the main firmware image. 0x950c contains
12282+ * the ACX's idea of the end of the firmware. Use that location to
12283+ * load ours (which depends on that location being 0xab58) then
12284+ * update that location to point to after ours.
12285+ */
12286+
12287+ offset = read_slavemem32 (adev, 0x950c);
12288+
12289+ log (L_DEBUG, "acx: patching in at 0x%04x\n", offset);
12290+
12291+ for (i = 0; i < sizeof(patch) / sizeof(patch[0]); i++) {
12292+ write_slavemem32 (adev, offset, patch[i]);
12293+ offset += sizeof(u32);
12294+ }
12295+
12296+ /*
12297+ * Patch the instruction at 0x0804 to branch to our ARM patch at 0xab58
12298+ */
12299+ write_slavemem32 (adev, 0x0804, 0xea000000 + (0xab58-0x0804-8)/4);
12300+
12301+ /*
12302+ * Patch the instructions at 0x1f40 to branch to our Thumb patch at 0xab74
12303+ *
12304+ * 4a00 ldr r2, [pc, #0]
12305+ * 4710 bx r2
12306+ * .data 0xab74+1
12307+ */
12308+ write_slavemem32 (adev, 0x1f40, 0x47104a00);
12309+ write_slavemem32 (adev, 0x1f44, 0x0000ab74+1);
12310+
12311+ /*
12312+ * Bump the end of the firmware up to beyond our patch.
12313+ */
12314+ write_slavemem32 (adev, 0x950c, offset);
12315+
12316+ }
12317+#endif
12318+
12319+ vfree(fw_image);
12320+
12321+ FN_EXIT1(res);
12322+ return res;
12323+}
12324+
12325+
12326+/***********************************************************************
12327+** acxmem_s_upload_radio
12328+**
12329+** Uploads the appropriate radio module firmware into the card.
12330+*/
12331+int
12332+acxmem_s_upload_radio(acx_device_t *adev)
12333+{
12334+ acx_ie_memmap_t mm;
12335+ firmware_image_t *radio_image;
12336+ acx_cmd_radioinit_t radioinit;
12337+ int res = NOT_OK;
12338+ int try;
12339+ u32 offset;
12340+ u32 size;
12341+ char filename[sizeof("RADIONN.BIN")];
12342+
12343+ if (!adev->need_radio_fw) return OK;
12344+
12345+ FN_ENTER;
12346+
12347+ acx_s_interrogate(adev, &mm, ACX1xx_IE_MEMORY_MAP);
12348+ offset = le32_to_cpu(mm.CodeEnd);
12349+
12350+ snprintf(filename, sizeof(filename), "RADIO%02x.BIN",
12351+ adev->radio_type);
12352+ radio_image = acx_s_read_fw(adev->dev, filename, &size);
12353+ if (!radio_image) {
12354+ printk("acx: can't load radio module '%s'\n", filename);
12355+ goto fail;
12356+ }
12357+
12358+ acx_s_issue_cmd(adev, ACX1xx_CMD_SLEEP, NULL, 0);
12359+
12360+ for (try = 1; try <= 5; try++) {
12361+ res = acxmem_s_write_fw(adev, radio_image, offset);
12362+ log(L_DEBUG|L_INIT, "acx_write_fw (radio): %d\n", res);
12363+ if (OK == res) {
12364+ res = acxmem_s_validate_fw(adev, radio_image, offset);
12365+ log(L_DEBUG|L_INIT, "acx_validate_fw (radio): %d\n", res);
12366+ }
12367+
12368+ if (OK == res)
12369+ break;
12370+ printk("acx: radio firmware upload attempt #%d FAILED, "
12371+ "retrying...\n", try);
12372+ acx_s_msleep(1000); /* better wait for a while... */
12373+ }
12374+
12375+ acx_s_issue_cmd(adev, ACX1xx_CMD_WAKE, NULL, 0);
12376+ radioinit.offset = cpu_to_le32(offset);
12377+
12378+ /* no endian conversion needed, remains in card CPU area: */
12379+ radioinit.len = radio_image->size;
12380+
12381+ vfree(radio_image);
12382+
12383+ if (OK != res)
12384+ goto fail;
12385+
12386+ /* will take a moment so let's have a big timeout */
12387+ acx_s_issue_cmd_timeo(adev, ACX1xx_CMD_RADIOINIT,
12388+ &radioinit, sizeof(radioinit), CMD_TIMEOUT_MS(1000));
12389+
12390+ res = acx_s_interrogate(adev, &mm, ACX1xx_IE_MEMORY_MAP);
12391+
12392+fail:
12393+ FN_EXIT1(res);
12394+ return res;
12395+}
12396+
12397+/***********************************************************************
12398+** acxmem_l_reset_mac
12399+**
12400+** MAC will be reset
12401+** Call context: reset_dev
12402+*/
12403+static void
12404+acxmem_l_reset_mac(acx_device_t *adev)
12405+{
12406+ int count;
12407+ FN_ENTER;
12408+
12409+ /* halt eCPU */
12410+ set_regbits (adev, IO_ACX_ECPU_CTRL, 0x1);
12411+
12412+ /* now do soft reset of eCPU, set bit */
12413+ set_regbits (adev, IO_ACX_SOFT_RESET, 0x1);
12414+ log(L_DEBUG, "%s: enable soft reset...\n", __func__);
12415+
12416+ /* Windows driver sleeps here for a while with this sequence */
12417+ for (count = 0; count < 200; count++) {
12418+ udelay (50);
12419+ }
12420+
12421+ /* now clear bit again: deassert eCPU reset */
12422+ log(L_DEBUG, "%s: disable soft reset and go to init mode...\n", __func__);
12423+ clear_regbits (adev, IO_ACX_SOFT_RESET, 0x1);
12424+
12425+ /* now start a burst read from initial EEPROM */
12426+ set_regbits (adev, IO_ACX_EE_START, 0x1);
12427+
12428+ /*
12429+ * Windows driver sleeps here for a while with this sequence
12430+ */
12431+ for (count = 0; count < 200; count++) {
12432+ udelay (50);
12433+ }
12434+
12435+ /* Windows driver writes 0x10000 to register 0x808 here */
12436+
12437+ write_reg32 (adev, 0x808, 0x10000);
12438+
12439+ FN_EXIT0;
12440+}
12441+
12442+
12443+/***********************************************************************
12444+** acxmem_s_verify_init
12445+*/
12446+static int
12447+acxmem_s_verify_init(acx_device_t *adev)
12448+{
12449+ int result = NOT_OK;
12450+ unsigned long timeout;
12451+
12452+ FN_ENTER;
12453+
12454+ timeout = jiffies + 2*HZ;
12455+ for (;;) {
12456+ u32 irqstat = read_reg32(adev, IO_ACX_IRQ_STATUS_NON_DES);
12457+ if ((irqstat != 0xFFFFFFFF) && (irqstat & HOST_INT_FCS_THRESHOLD)) {
12458+ result = OK;
12459+ write_reg32(adev, IO_ACX_IRQ_ACK, HOST_INT_FCS_THRESHOLD);
12460+ break;
12461+ }
12462+ if (time_after(jiffies, timeout))
12463+ break;
12464+ /* Init may take up to ~0.5 sec total */
12465+ acx_s_msleep(50);
12466+ }
12467+
12468+ FN_EXIT1(result);
12469+ return result;
12470+}
12471+
12472+
12473+/***********************************************************************
12474+** A few low-level helpers
12475+**
12476+** Note: these functions are not protected by lock
12477+** and thus are never allowed to be called from IRQ.
12478+** Also they must not race with fw upload which uses same hw regs
12479+*/
12480+
12481+/***********************************************************************
12482+** acxmem_write_cmd_type_status
12483+*/
12484+
12485+static inline void
12486+acxmem_write_cmd_type_status(acx_device_t *adev, u16 type, u16 status)
12487+{
12488+ write_slavemem32 (adev, (u32) adev->cmd_area, type | (status << 16));
12489+ write_flush(adev);
12490+}
12491+
12492+
12493+/***********************************************************************
12494+** acxmem_read_cmd_type_status
12495+*/
12496+static u32
12497+acxmem_read_cmd_type_status(acx_device_t *adev)
12498+{
12499+ u32 cmd_type, cmd_status;
12500+
12501+ cmd_type = read_slavemem32 (adev, (u32) adev->cmd_area);
12502+
12503+ cmd_status = (cmd_type >> 16);
12504+ cmd_type = (u16)cmd_type;
12505+
12506+ log(L_CTL, "cmd_type:%04X cmd_status:%04X [%s]\n",
12507+ cmd_type, cmd_status,
12508+ acx_cmd_status_str(cmd_status));
12509+
12510+ return cmd_status;
12511+}
12512+
12513+
12514+/***********************************************************************
12515+** acxmem_s_reset_dev
12516+**
12517+** Arguments:
12518+** netdevice that contains the adev variable
12519+** Returns:
12520+** NOT_OK on fail
12521+** OK on success
12522+** Side effects:
12523+** device is hard reset
12524+** Call context:
12525+** acxmem_e_probe
12526+** Comment:
12527+** This resets the device using low level hardware calls
12528+** as well as uploads and verifies the firmware to the card
12529+*/
12530+
12531+static inline void
12532+init_mboxes(acx_device_t *adev)
12533+{
12534+ u32 cmd_offs, info_offs;
12535+
12536+ cmd_offs = read_reg32(adev, IO_ACX_CMD_MAILBOX_OFFS);
12537+ info_offs = read_reg32(adev, IO_ACX_INFO_MAILBOX_OFFS);
12538+ adev->cmd_area = (u8*) cmd_offs;
12539+ adev->info_area = (u8*) info_offs;
12540+ /*
12541+ log(L_DEBUG, "iobase2=%p\n"
12542+ */
12543+ log( L_DEBUG, "cmd_mbox_offset=%X cmd_area=%p\n"
12544+ "info_mbox_offset=%X info_area=%p\n",
12545+ cmd_offs, adev->cmd_area,
12546+ info_offs, adev->info_area);
12547+}
12548+
12549+
12550+static inline void
12551+read_eeprom_area(acx_device_t *adev)
12552+{
12553+#if ACX_DEBUG > 1
12554+ int offs;
12555+ u8 tmp;
12556+
12557+ for (offs = 0x8c; offs < 0xb9; offs++)
12558+ acxmem_read_eeprom_byte(adev, offs, &tmp);
12559+#endif
12560+}
12561+
12562+static int
12563+acxmem_s_reset_dev(acx_device_t *adev)
12564+{
12565+ const char* msg = "";
12566+ unsigned long flags;
12567+ int result = NOT_OK;
12568+ u16 hardware_info;
12569+ u16 ecpu_ctrl;
12570+ int count;
12571+ u32 tmp;
12572+
12573+ FN_ENTER;
12574+ /*
12575+ write_reg32 (adev, IO_ACX_SLV_MEM_CP, 0);
12576+ */
12577+ /* reset the device to make sure the eCPU is stopped
12578+ * to upload the firmware correctly */
12579+
12580+ acx_lock(adev, flags);
12581+
12582+ /* Windows driver does some funny things here */
12583+ /*
12584+ * clear bit 0x200 in register 0x2A0
12585+ */
12586+ clear_regbits (adev, 0x2A0, 0x200);
12587+
12588+ /*
12589+ * Set bit 0x200 in ACX_GPIO_OUT
12590+ */
12591+ set_regbits (adev, IO_ACX_GPIO_OUT, 0x200);
12592+
12593+ /*
12594+ * read register 0x900 until its value is 0x8400104C, sleeping
12595+ * in between reads if it's not immediate
12596+ */
12597+ tmp = read_reg32 (adev, REG_ACX_VENDOR_ID);
12598+ count = 500;
12599+ while (count-- && (tmp != ACX_VENDOR_ID)) {
12600+ mdelay (10);
12601+ tmp = read_reg32 (adev, REG_ACX_VENDOR_ID);
12602+ }
12603+
12604+ /* end what Windows driver does */
12605+
12606+ acxmem_l_reset_mac(adev);
12607+
12608+ ecpu_ctrl = read_reg32(adev, IO_ACX_ECPU_CTRL) & 1;
12609+ if (!ecpu_ctrl) {
12610+ msg = "eCPU is already running. ";
12611+ goto end_unlock;
12612+ }
12613+
12614+#ifdef WE_DONT_NEED_THAT_DO_WE
12615+ if (read_reg16(adev, IO_ACX_SOR_CFG) & 2) {
12616+ /* eCPU most likely means "embedded CPU" */
12617+ msg = "eCPU did not start after boot from flash. ";
12618+ goto end_unlock;
12619+ }
12620+
12621+ /* check sense on reset flags */
12622+ if (read_reg16(adev, IO_ACX_SOR_CFG) & 0x10) {
12623+ printk("%s: eCPU did not start after boot (SOR), "
12624+ "is this fatal?\n", adev->ndev->name);
12625+ }
12626+#endif
12627+ /* scan, if any, is stopped now, setting corresponding IRQ bit */
12628+ adev->irq_status |= HOST_INT_SCAN_COMPLETE;
12629+
12630+ acx_unlock(adev, flags);
12631+
12632+ /* need to know radio type before fw load */
12633+ /* Need to wait for arrival of this information in a loop,
12634+ * most probably since eCPU runs some init code from EEPROM
12635+ * (started burst read in reset_mac()) which also
12636+ * sets the radio type ID */
12637+
12638+ count = 0xffff;
12639+ do {
12640+ hardware_info = read_reg16(adev, IO_ACX_EEPROM_INFORMATION);
12641+ if (!--count) {
12642+ msg = "eCPU didn't indicate radio type";
12643+ goto end_fail;
12644+ }
12645+ cpu_relax();
12646+ } while (!(hardware_info & 0xff00)); /* radio type still zero? */
12647+ printk("ACX radio type 0x%02x\n", (hardware_info >> 8) & 0xff);
12648+ /* printk("DEBUG: count %d\n", count); */
12649+ adev->form_factor = hardware_info & 0xff;
12650+ adev->radio_type = hardware_info >> 8;
12651+
12652+ /* load the firmware */
12653+ if (OK != acxmem_s_upload_fw(adev))
12654+ goto end_fail;
12655+
12656+ /* acx_s_msleep(10); this one really shouldn't be required */
12657+
12658+ /* now start eCPU by clearing bit */
12659+ clear_regbits (adev, IO_ACX_ECPU_CTRL, 0x1);
12660+ log(L_DEBUG, "booted eCPU up and waiting for completion...\n");
12661+
12662+ /* Windows driver clears bit 0x200 in register 0x2A0 here */
12663+ clear_regbits (adev, 0x2A0, 0x200);
12664+
12665+ /* Windows driver sets bit 0x200 in ACX_GPIO_OUT here */
12666+ set_regbits (adev, IO_ACX_GPIO_OUT, 0x200);
12667+ /* wait for eCPU bootup */
12668+ if (OK != acxmem_s_verify_init(adev)) {
12669+ msg = "timeout waiting for eCPU. ";
12670+ goto end_fail;
12671+ }
12672+ log(L_DEBUG, "eCPU has woken up, card is ready to be configured\n");
12673+ init_mboxes(adev);
12674+ acxmem_write_cmd_type_status(adev, ACX1xx_CMD_RESET, 0);
12675+
12676+ /* test that EEPROM is readable */
12677+ read_eeprom_area(adev);
12678+
12679+ result = OK;
12680+ goto end;
12681+
12682+/* Finish error message. Indicate which function failed */
12683+end_unlock:
12684+ acx_unlock(adev, flags);
12685+end_fail:
12686+ printk("acx: %sreset_dev() FAILED\n", msg);
12687+end:
12688+ FN_EXIT1(result);
12689+ return result;
12690+}
12691+
12692+
12693+/***********************************************************************
12694+** acxmem_s_issue_cmd_timeo
12695+**
12696+** Sends command to fw, extract result
12697+**
12698+** NB: we do _not_ take lock inside, so be sure to not touch anything
12699+** which may interfere with IRQ handler operation
12700+**
12701+** TODO: busy wait is a bit silly, so:
12702+** 1) stop doing many iters - go to sleep after first
12703+** 2) go to waitqueue based approach: wait, not poll!
12704+*/
12705+#undef FUNC
12706+#define FUNC "issue_cmd"
12707+
12708+#if !ACX_DEBUG
12709+int
12710+acxmem_s_issue_cmd_timeo(
12711+ acx_device_t *adev,
12712+ unsigned int cmd,
12713+ void *buffer,
12714+ unsigned buflen,
12715+ unsigned cmd_timeout)
12716+{
12717+#else
12718+int
12719+acxmem_s_issue_cmd_timeo_debug(
12720+ acx_device_t *adev,
12721+ unsigned cmd,
12722+ void *buffer,
12723+ unsigned buflen,
12724+ unsigned cmd_timeout,
12725+ const char* cmdstr)
12726+{
12727+ unsigned long start = jiffies;
12728+#endif
12729+ const char *devname;
12730+ unsigned counter;
12731+ u16 irqtype;
12732+ int i, j;
12733+ u8 *p;
12734+ u16 cmd_status;
12735+ unsigned long timeout;
12736+
12737+ FN_ENTER;
12738+
12739+ devname = adev->ndev->name;
12740+ if (!devname || !devname[0] || devname[4]=='%')
12741+ devname = "acx";
12742+
12743+ log(L_CTL, FUNC"(cmd:%s,buflen:%u,timeout:%ums,type:0x%04X)\n",
12744+ cmdstr, buflen, cmd_timeout,
12745+ buffer ? le16_to_cpu(((acx_ie_generic_t *)buffer)->type) : -1);
12746+
12747+ if (!(adev->dev_state_mask & ACX_STATE_FW_LOADED)) {
12748+ printk("%s: "FUNC"(): firmware is not loaded yet, "
12749+ "cannot execute commands!\n", devname);
12750+ goto bad;
12751+ }
12752+
12753+ if ((acx_debug & L_DEBUG) && (cmd != ACX1xx_CMD_INTERROGATE)) {
12754+ printk("input buffer (len=%u):\n", buflen);
12755+ acx_dump_bytes(buffer, buflen);
12756+ }
12757+
12758+ /* wait for firmware to become idle for our command submission */
12759+ timeout = HZ/5;
12760+ counter = (timeout * 1000 / HZ) - 1; /* in ms */
12761+ timeout += jiffies;
12762+ do {
12763+ cmd_status = acxmem_read_cmd_type_status(adev);
12764+ /* Test for IDLE state */
12765+ if (!cmd_status)
12766+ break;
12767+ if (counter % 8 == 0) {
12768+ if (time_after(jiffies, timeout)) {
12769+ counter = 0;
12770+ break;
12771+ }
12772+ /* we waited 8 iterations, no luck. Sleep 8 ms */
12773+ acx_s_msleep(8);
12774+ }
12775+ } while (likely(--counter));
12776+
12777+ if (!counter) {
12778+ /* the card doesn't get idle, we're in trouble */
12779+ printk("%s: "FUNC"(): cmd_status is not IDLE: 0x%04X!=0\n",
12780+ devname, cmd_status);
12781+#if DUMP_IF_SLOW > 0
12782+ dump_acxmem (adev, 0, 0x10000);
12783+ panic ("not idle");
12784+#endif
12785+ goto bad;
12786+ } else if (counter < 190) { /* if waited >10ms... */
12787+ log(L_CTL|L_DEBUG, FUNC"(): waited for IDLE %dms. "
12788+ "Please report\n", 199 - counter);
12789+ }
12790+
12791+ /* now write the parameters of the command if needed */
12792+ if (buffer && buflen) {
12793+ /* if it's an INTERROGATE command, just pass the length
12794+ * of parameters to read, as data */
12795+#if CMD_DISCOVERY
12796+ if (cmd == ACX1xx_CMD_INTERROGATE)
12797+ memset_io(adev->cmd_area + 4, 0xAA, buflen);
12798+#endif
12799+ /*
12800+ * slave memory version
12801+ */
12802+ copy_to_slavemem (adev, (u32) (adev->cmd_area + 4), buffer,
12803+ (cmd == ACX1xx_CMD_INTERROGATE) ? 4 : buflen);
12804+ }
12805+ /* now write the actual command type */
12806+ acxmem_write_cmd_type_status(adev, cmd, 0);
12807+
12808+ /* clear CMD_COMPLETE bit. can be set only by IRQ handler: */
12809+ adev->irq_status &= ~HOST_INT_CMD_COMPLETE;
12810+
12811+ /* execute command */
12812+ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_CMD);
12813+ write_flush(adev);
12814+
12815+ /* wait for firmware to process command */
12816+
12817+ /* Ensure nonzero and not too large timeout.
12818+ ** Also converts e.g. 100->99, 200->199
12819+ ** which is nice but not essential */
12820+ cmd_timeout = (cmd_timeout-1) | 1;
12821+ if (unlikely(cmd_timeout > 1199))
12822+ cmd_timeout = 1199;
12823+
12824+ /* we schedule away sometimes (timeout can be large) */
12825+ counter = cmd_timeout;
12826+ timeout = jiffies + cmd_timeout * HZ / 1000;
12827+ do {
12828+ if (!adev->irqs_active) { /* IRQ disabled: poll */
12829+ irqtype = read_reg16(adev, IO_ACX_IRQ_STATUS_NON_DES);
12830+ if (irqtype & HOST_INT_CMD_COMPLETE) {
12831+ write_reg16(adev, IO_ACX_IRQ_ACK,
12832+ HOST_INT_CMD_COMPLETE);
12833+ break;
12834+ }
12835+ } else { /* Wait when IRQ will set the bit */
12836+ irqtype = adev->irq_status;
12837+ if (irqtype & HOST_INT_CMD_COMPLETE)
12838+ break;
12839+ }
12840+
12841+ if (counter % 8 == 0) {
12842+ if (time_after(jiffies, timeout)) {
12843+ counter = 0;
12844+ break;
12845+ }
12846+ /* we waited 8 iterations, no luck. Sleep 8 ms */
12847+ acx_s_msleep(8);
12848+ }
12849+ } while (likely(--counter));
12850+
12851+ /* save state for debugging */
12852+ cmd_status = acxmem_read_cmd_type_status(adev);
12853+
12854+ /* put the card in IDLE state */
12855+ acxmem_write_cmd_type_status(adev, ACX1xx_CMD_RESET, 0);
12856+
12857+ if (!counter) { /* timed out! */
12858+ printk("%s: "FUNC"(): timed out %s for CMD_COMPLETE. "
12859+ "irq bits:0x%04X irq_status:0x%04X timeout:%dms "
12860+ "cmd_status:%d (%s)\n",
12861+ devname, (adev->irqs_active) ? "waiting" : "polling",
12862+ irqtype, adev->irq_status, cmd_timeout,
12863+ cmd_status, acx_cmd_status_str(cmd_status));
12864+ printk("%s: "FUNC"(): device irq status 0x%04x\n",
12865+ devname, read_reg16(adev, IO_ACX_IRQ_STATUS_NON_DES));
12866+ printk("%s: "FUNC"(): IO_ACX_IRQ_MASK 0x%04x IO_ACX_FEMR 0x%04x\n",
12867+ devname,
12868+ read_reg16 (adev, IO_ACX_IRQ_MASK),
12869+ read_reg16 (adev, IO_ACX_FEMR));
12870+ if (read_reg16 (adev, IO_ACX_IRQ_MASK) == 0xffff) {
12871+ printk ("acxmem: firmware probably hosed - reloading\n");
12872+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
12873+ {
12874+ pm_message_t state;
12875+ /* acxmem_e_suspend (resume_pdev, state); */
12876+ acxmem_e_suspend (adev->ndev , state);
12877+ }
12878+#else
12879+ acxmem_e_suspend (adev, 0);
12880+#endif
12881+ {
12882+ resume_ndev = adev->ndev;
12883+ fw_resumer (NULL);
12884+ }
12885+ }
12886+
12887+ goto bad;
12888+ } else if (cmd_timeout - counter > 30) { /* if waited >30ms... */
12889+ log(L_CTL|L_DEBUG, FUNC"(): %s for CMD_COMPLETE %dms. "
12890+ "count:%d. Please report\n",
12891+ (adev->irqs_active) ? "waited" : "polled",
12892+ cmd_timeout - counter, counter);
12893+ }
12894+
12895+ if (1 != cmd_status) { /* it is not a 'Success' */
12896+ printk("%s: "FUNC"(): cmd_status is not SUCCESS: %d (%s). "
12897+ "Took %dms of %d\n",
12898+ devname, cmd_status, acx_cmd_status_str(cmd_status),
12899+ cmd_timeout - counter, cmd_timeout);
12900+ /* zero out result buffer
12901+ * WARNING: this will trash stack in case of illegally large input
12902+ * length! */
12903+ if (buflen > 388) {
12904+ /*
12905+ * 388 is maximum command length
12906+ */
12907+ printk ("invalid length 0x%08x\n", buflen);
12908+ buflen = 388;
12909+ }
12910+ p = (u8 *) buffer;
12911+ for (i = 0; i < buflen; i+= 16) {
12912+ printk ("%04x:", i);
12913+ for (j = 0; (j < 16) && (i+j < buflen); j++) {
12914+ printk (" %02x", *p++);
12915+ }
12916+ printk ("\n");
12917+ }
12918+ if (buffer && buflen)
12919+ memset(buffer, 0, buflen);
12920+ goto bad;
12921+ }
12922+
12923+ /* read in result parameters if needed */
12924+ if (buffer && buflen && (cmd == ACX1xx_CMD_INTERROGATE)) {
12925+ copy_from_slavemem (adev, buffer, (u32) (adev->cmd_area + 4), buflen);
12926+ if (acx_debug & L_DEBUG) {
12927+ printk("output buffer (len=%u): ", buflen);
12928+ acx_dump_bytes(buffer, buflen);
12929+ }
12930+ }
12931+
12932+/* ok: */
12933+ log(L_CTL, FUNC"(%s): took %ld jiffies to complete\n",
12934+ cmdstr, jiffies - start);
12935+ FN_EXIT1(OK);
12936+ return OK;
12937+
12938+bad:
12939+ /* Give enough info so that callers can avoid
12940+ ** printing their own diagnostic messages */
12941+#if ACX_DEBUG
12942+ printk("%s: "FUNC"(cmd:%s) FAILED\n", devname, cmdstr);
12943+#else
12944+ printk("%s: "FUNC"(cmd:0x%04X) FAILED\n", devname, cmd);
12945+#endif
12946+ dump_stack();
12947+ FN_EXIT1(NOT_OK);
12948+ return NOT_OK;
12949+}
12950+
12951+
12952+/***********************************************************************
12953+*/
12954+#if defined(NONESSENTIAL_FEATURES)
12955+typedef struct device_id {
12956+ unsigned char id[6];
12957+ char *descr;
12958+ char *type;
12959+} device_id_t;
12960+
12961+static const device_id_t
12962+device_ids[] =
12963+{
12964+ {
12965+ {'G', 'l', 'o', 'b', 'a', 'l'},
12966+ NULL,
12967+ NULL,
12968+ },
12969+ {
12970+ {0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
12971+ "uninitialized",
12972+ "SpeedStream SS1021 or Gigafast WF721-AEX"
12973+ },
12974+ {
12975+ {0x80, 0x81, 0x82, 0x83, 0x84, 0x85},
12976+ "non-standard",
12977+ "DrayTek Vigor 520"
12978+ },
12979+ {
12980+ {'?', '?', '?', '?', '?', '?'},
12981+ "non-standard",
12982+ "Level One WPC-0200"
12983+ },
12984+ {
12985+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
12986+ "empty",
12987+ "DWL-650+ variant"
12988+ }
12989+};
12990+
12991+static void
12992+acx_show_card_eeprom_id(acx_device_t *adev)
12993+{
12994+ unsigned char buffer[CARD_EEPROM_ID_SIZE];
12995+ int i;
12996+
12997+ memset(&buffer, 0, CARD_EEPROM_ID_SIZE);
12998+ /* use direct EEPROM access */
12999+ for (i = 0; i < CARD_EEPROM_ID_SIZE; i++) {
13000+ if (OK != acxmem_read_eeprom_byte(adev,
13001+ ACX100_EEPROM_ID_OFFSET + i,
13002+ &buffer[i])) {
13003+ printk("acx: reading EEPROM FAILED\n");
13004+ break;
13005+ }
13006+ }
13007+
13008+ for (i = 0; i < VEC_SIZE(device_ids); i++) {
13009+ if (!memcmp(&buffer, device_ids[i].id, CARD_EEPROM_ID_SIZE)) {
13010+ if (device_ids[i].descr) {
13011+ printk("acx: EEPROM card ID string check "
13012+ "found %s card ID: is this %s?\n",
13013+ device_ids[i].descr, device_ids[i].type);
13014+ }
13015+ break;
13016+ }
13017+ }
13018+ if (i == VEC_SIZE(device_ids)) {
13019+ printk("acx: EEPROM card ID string check found "
13020+ "unknown card: expected 'Global', got '%.*s\'. "
13021+ "Please report\n", CARD_EEPROM_ID_SIZE, buffer);
13022+ }
13023+}
13024+#endif /* NONESSENTIAL_FEATURES */
13025+
13026+/***********************************************************************
13027+** acxmem_free_desc_queues
13028+**
13029+** Releases the queues that have been allocated, the
13030+** others have been initialised to NULL so this
13031+** function can be used if only part of the queues were allocated.
13032+*/
13033+
13034+void
13035+acxmem_free_desc_queues(acx_device_t *adev)
13036+{
13037+#define ACX_FREE_QUEUE(size, ptr, phyaddr) \
13038+ if (ptr) { \
13039+ kfree(ptr); \
13040+ ptr = NULL; \
13041+ size = 0; \
13042+ }
13043+
13044+ FN_ENTER;
13045+
13046+ ACX_FREE_QUEUE(adev->txhostdesc_area_size, adev->txhostdesc_start, adev->txhostdesc_startphy);
13047+ ACX_FREE_QUEUE(adev->txbuf_area_size, adev->txbuf_start, adev->txbuf_startphy);
13048+
13049+ adev->txdesc_start = NULL;
13050+
13051+ ACX_FREE_QUEUE(adev->rxhostdesc_area_size, adev->rxhostdesc_start, adev->rxhostdesc_startphy);
13052+ ACX_FREE_QUEUE(adev->rxbuf_area_size, adev->rxbuf_start, adev->rxbuf_startphy);
13053+
13054+ adev->rxdesc_start = NULL;
13055+
13056+ FN_EXIT0;
13057+}
13058+
13059+
13060+/***********************************************************************
13061+** acxmem_s_delete_dma_regions
13062+*/
13063+static void
13064+acxmem_s_delete_dma_regions(acx_device_t *adev)
13065+{
13066+ unsigned long flags;
13067+
13068+ FN_ENTER;
13069+ /* disable radio Tx/Rx. Shouldn't we use the firmware commands
13070+ * here instead? Or are we that much down the road that it's no
13071+ * longer possible here? */
13072+ /*
13073+ * slave memory interface really doesn't like this.
13074+ */
13075+ /*
13076+ write_reg16(adev, IO_ACX_ENABLE, 0);
13077+ */
13078+
13079+ acx_s_msleep(100);
13080+
13081+ acx_lock(adev, flags);
13082+ acxmem_free_desc_queues(adev);
13083+ acx_unlock(adev, flags);
13084+
13085+ FN_EXIT0;
13086+}
13087+
13088+
13089+/***********************************************************************
13090+** acxmem_e_probe
13091+**
13092+** Probe routine called when a PCI device w/ matching ID is found.
13093+** Here's the sequence:
13094+** - Allocate the PCI resources.
13095+** - Read the PCMCIA attribute memory to make sure we have a WLAN card
13096+** - Reset the MAC
13097+** - Initialize the dev and wlan data
13098+** - Initialize the MAC
13099+**
13100+** pdev - ptr to pci device structure containing info about pci configuration
13101+** id - ptr to the device id entry that matched this device
13102+*/
13103+static const u16
13104+IO_ACX100[] =
13105+{
13106+ 0x0000, /* IO_ACX_SOFT_RESET */
13107+
13108+ 0x0014, /* IO_ACX_SLV_MEM_ADDR */
13109+ 0x0018, /* IO_ACX_SLV_MEM_DATA */
13110+ 0x001c, /* IO_ACX_SLV_MEM_CTL */
13111+ 0x0020, /* IO_ACX_SLV_END_CTL */
13112+
13113+ 0x0034, /* IO_ACX_FEMR */
13114+
13115+ 0x007c, /* IO_ACX_INT_TRIG */
13116+ 0x0098, /* IO_ACX_IRQ_MASK */
13117+ 0x00a4, /* IO_ACX_IRQ_STATUS_NON_DES */
13118+ 0x00a8, /* IO_ACX_IRQ_STATUS_CLEAR */
13119+ 0x00ac, /* IO_ACX_IRQ_ACK */
13120+ 0x00b0, /* IO_ACX_HINT_TRIG */
13121+
13122+ 0x0104, /* IO_ACX_ENABLE */
13123+
13124+ 0x0250, /* IO_ACX_EEPROM_CTL */
13125+ 0x0254, /* IO_ACX_EEPROM_ADDR */
13126+ 0x0258, /* IO_ACX_EEPROM_DATA */
13127+ 0x025c, /* IO_ACX_EEPROM_CFG */
13128+
13129+ 0x0268, /* IO_ACX_PHY_ADDR */
13130+ 0x026c, /* IO_ACX_PHY_DATA */
13131+ 0x0270, /* IO_ACX_PHY_CTL */
13132+
13133+ 0x0290, /* IO_ACX_GPIO_OE */
13134+
13135+ 0x0298, /* IO_ACX_GPIO_OUT */
13136+
13137+ 0x02a4, /* IO_ACX_CMD_MAILBOX_OFFS */
13138+ 0x02a8, /* IO_ACX_INFO_MAILBOX_OFFS */
13139+ 0x02ac, /* IO_ACX_EEPROM_INFORMATION */
13140+
13141+ 0x02d0, /* IO_ACX_EE_START */
13142+ 0x02d4, /* IO_ACX_SOR_CFG */
13143+ 0x02d8 /* IO_ACX_ECPU_CTRL */
13144+};
13145+
13146+static const u16
13147+IO_ACX111[] =
13148+{
13149+ 0x0000, /* IO_ACX_SOFT_RESET */
13150+
13151+ 0x0014, /* IO_ACX_SLV_MEM_ADDR */
13152+ 0x0018, /* IO_ACX_SLV_MEM_DATA */
13153+ 0x001c, /* IO_ACX_SLV_MEM_CTL */
13154+ 0x0020, /* IO_ACX_SLV_MEM_CP */
13155+
13156+ 0x0034, /* IO_ACX_FEMR */
13157+
13158+ 0x00b4, /* IO_ACX_INT_TRIG */
13159+ 0x00d4, /* IO_ACX_IRQ_MASK */
13160+ /* we do mean NON_DES (0xf0), not NON_DES_MASK which is at 0xe0: */
13161+ 0x00f0, /* IO_ACX_IRQ_STATUS_NON_DES */
13162+ 0x00e4, /* IO_ACX_IRQ_STATUS_CLEAR */
13163+ 0x00e8, /* IO_ACX_IRQ_ACK */
13164+ 0x00ec, /* IO_ACX_HINT_TRIG */
13165+
13166+ 0x01d0, /* IO_ACX_ENABLE */
13167+
13168+ 0x0338, /* IO_ACX_EEPROM_CTL */
13169+ 0x033c, /* IO_ACX_EEPROM_ADDR */
13170+ 0x0340, /* IO_ACX_EEPROM_DATA */
13171+ 0x0344, /* IO_ACX_EEPROM_CFG */
13172+
13173+ 0x0350, /* IO_ACX_PHY_ADDR */
13174+ 0x0354, /* IO_ACX_PHY_DATA */
13175+ 0x0358, /* IO_ACX_PHY_CTL */
13176+
13177+ 0x0374, /* IO_ACX_GPIO_OE */
13178+
13179+ 0x037c, /* IO_ACX_GPIO_OUT */
13180+
13181+ 0x0388, /* IO_ACX_CMD_MAILBOX_OFFS */
13182+ 0x038c, /* IO_ACX_INFO_MAILBOX_OFFS */
13183+ 0x0390, /* IO_ACX_EEPROM_INFORMATION */
13184+
13185+ 0x0100, /* IO_ACX_EE_START */
13186+ 0x0104, /* IO_ACX_SOR_CFG */
13187+ 0x0108, /* IO_ACX_ECPU_CTRL */
13188+};
13189+
13190+static void
13191+dummy_netdev_init(struct net_device *ndev) {}
13192+
13193+/*
13194+ * Most of the acx specific pieces of hardware reset.
13195+ */
13196+static int
13197+acxmem_complete_hw_reset (acx_device_t *adev)
13198+{
13199+ acx111_ie_configoption_t co;
13200+
13201+ /* NB: read_reg() reads may return bogus data before reset_dev(),
13202+ * since the firmware which directly controls large parts of the I/O
13203+ * registers isn't initialized yet.
13204+ * acx100 seems to be more affected than acx111 */
13205+ if (OK != acxmem_s_reset_dev (adev))
13206+ return -1;
13207+
13208+ if (IS_ACX100(adev)) {
13209+ /* ACX100: configopt struct in cmd mailbox - directly after reset */
13210+ copy_from_slavemem (adev, (u8*) &co, (u32) adev->cmd_area, sizeof (co));
13211+ }
13212+
13213+ if (OK != acx_s_init_mac(adev))
13214+ return -3;
13215+
13216+ if (IS_ACX111(adev)) {
13217+ /* ACX111: configopt struct needs to be queried after full init */
13218+ acx_s_interrogate(adev, &co, ACX111_IE_CONFIG_OPTIONS);
13219+ }
13220+
13221+ /*
13222+ * Set up transmit buffer administration
13223+ */
13224+ init_acx_txbuf (adev);
13225+
13226+ /*
13227+ * Windows driver writes 0x01000000 to register 0x288, RADIO_CTL, if the form factor
13228+ * is 3. It also write protects the EEPROM by writing 1<<9 to GPIO_OUT
13229+ */
13230+ if (adev->form_factor == 3) {
13231+ set_regbits (adev, 0x288, 0x01000000);
13232+ set_regbits (adev, 0x298, 1<<9);
13233+ }
13234+
13235+/* TODO: merge them into one function, they are called just once and are the same for pci & usb */
13236+ if (OK != acxmem_read_eeprom_byte(adev, 0x05, &adev->eeprom_version))
13237+ return -2;
13238+
13239+ acx_s_parse_configoption(adev, &co);
13240+ acx_s_get_firmware_version(adev); /* needs to be after acx_s_init_mac() */
13241+ acx_display_hardware_details(adev);
13242+
13243+ return 0;
13244+}
13245+
13246+static int acx_init_netdev(struct net_device *ndev, struct device *dev, int base_addr, int addr_size, int irq)
13247+{
13248+ const char *chip_name;
13249+ int result = -EIO;
13250+ int err;
13251+ u8 chip_type;
13252+ acx_device_t *adev = NULL;
13253+
13254+ FN_ENTER;
13255+
13256+ /* FIXME: prism54 calls pci_set_mwi() here,
13257+ * should we do/support the same? */
13258+
13259+ /* chiptype is u8 but id->driver_data is ulong
13260+ ** Works for now (possible values are 1 and 2) */
13261+ chip_type = CHIPTYPE_ACX100;
13262+ /* acx100 and acx111 have different PCI memory regions */
13263+ if (chip_type == CHIPTYPE_ACX100) {
13264+ chip_name = "ACX100";
13265+ } else if (chip_type == CHIPTYPE_ACX111) {
13266+ chip_name = "ACX111";
13267+ } else {
13268+ printk("acx: unknown chip type 0x%04X\n", chip_type);
13269+ goto fail_unknown_chiptype;
13270+ }
13271+
13272+ printk("acx: found %s-based wireless network card\n", chip_name);
13273+ log(L_ANY, "initial debug setting is 0x%04X\n", acx_debug);
13274+
13275+
13276+ dev_set_drvdata(dev, ndev);
13277+
13278+ ether_setup(ndev);
13279+
13280+ ndev->irq = irq;
13281+
13282+ ndev->base_addr = base_addr;
13283+printk (KERN_INFO "memwinbase=%lx memwinsize=%u\n",memwin.Base,memwin.Size);
13284+ if (addr_size == 0 || ndev->irq == 0)
13285+ goto fail_hw_params;
13286+ ndev->open = &acxmem_e_open;
13287+ ndev->stop = &acxmem_e_close;
13288+ //pdev->dev.release = &acxmem_e_release;
13289+ ndev->hard_start_xmit = &acx_i_start_xmit;
13290+ ndev->get_stats = &acx_e_get_stats;
13291+#if IW_HANDLER_VERSION <= 5
13292+ ndev->get_wireless_stats = &acx_e_get_wireless_stats;
13293+#endif
13294+ ndev->wireless_handlers = (struct iw_handler_def *)&acx_ioctl_handler_def;
13295+ ndev->set_multicast_list = &acxmem_i_set_multicast_list;
13296+ ndev->tx_timeout = &acxmem_i_tx_timeout;
13297+ ndev->change_mtu = &acx_e_change_mtu;
13298+ ndev->watchdog_timeo = 4 * HZ;
13299+
13300+ adev = ndev2adev(ndev);
13301+ spin_lock_init(&adev->lock); /* initial state: unlocked */
13302+ spin_lock_init(&adev->txbuf_lock);
13303+ /* We do not start with downed sem: we want PARANOID_LOCKING to work */
13304+ sema_init(&adev->sem, 1); /* initial state: 1 (upped) */
13305+ /* since nobody can see new netdev yet, we can as well
13306+ ** just _presume_ that we're under sem (instead of actually taking it): */
13307+ /* acx_sem_lock(adev); */
13308+ adev->dev = dev;
13309+ adev->ndev = ndev;
13310+ adev->dev_type = DEVTYPE_MEM;
13311+ adev->chip_type = chip_type;
13312+ adev->chip_name = chip_name;
13313+ adev->io = (CHIPTYPE_ACX100 == chip_type) ? IO_ACX100 : IO_ACX111;
13314+ adev->membase = (volatile u32 *) ndev->base_addr;
13315+ adev->iobase = (volatile u32 *) ioremap_nocache (ndev->base_addr, addr_size);
13316+ /* to find crashes due to weird driver access
13317+ * to unconfigured interface (ifup) */
13318+ adev->mgmt_timer.function = (void (*)(unsigned long))0x0000dead;
13319+
13320+#if defined(NONESSENTIAL_FEATURES)
13321+ acx_show_card_eeprom_id(adev);
13322+#endif /* NONESSENTIAL_FEATURES */
13323+
13324+#ifdef SET_MODULE_OWNER
13325+ SET_MODULE_OWNER(ndev);
13326+#endif
13327+ // need to fix that @@
13328+ SET_NETDEV_DEV(ndev, dev);
13329+
13330+ log(L_IRQ|L_INIT, "using IRQ %d\n", ndev->irq);
13331+
13332+ /* ok, pci setup is finished, now start initializing the card */
13333+
13334+ if (OK != acxmem_complete_hw_reset (adev))
13335+ goto fail_reset;
13336+
13337+ /*
13338+ * Set up default things for most of the card settings.
13339+ */
13340+ acx_s_set_defaults(adev);
13341+
13342+ /* Register the card, AFTER everything else has been set up,
13343+ * since otherwise an ioctl could step on our feet due to
13344+ * firmware operations happening in parallel or uninitialized data */
13345+ err = register_netdev(ndev);
13346+ if (OK != err) {
13347+ printk("acx: register_netdev() FAILED: %d\n", err);
13348+ goto fail_register_netdev;
13349+ }
13350+
13351+ acx_proc_register_entries(ndev);
13352+
13353+ /* Now we have our device, so make sure the kernel doesn't try
13354+ * to send packets even though we're not associated to a network yet */
13355+ acx_stop_queue(ndev, "on probe");
13356+ acx_carrier_off(ndev, "on probe");
13357+
13358+ /*
13359+ * Set up a default monitor type so that poor combinations of initialization
13360+ * sequences in monitor mode don't end up destroying the hardware type.
13361+ */
13362+ adev->monitor_type = ARPHRD_ETHER;
13363+
13364+ /*
13365+ * Register to receive inetaddr notifier changes. This will allow us to
13366+ * catch if the user changes the MAC address of the interface.
13367+ */
13368+ register_netdevice_notifier(&acx_netdev_notifier);
13369+
13370+ /* after register_netdev() userspace may start working with dev
13371+ * (in particular, on other CPUs), we only need to up the sem */
13372+ /* acx_sem_unlock(adev); */
13373+
13374+ printk("acx "ACX_RELEASE": net device %s, driver compiled "
13375+ "against wireless extensions %d and Linux %s\n",
13376+ ndev->name, WIRELESS_EXT, UTS_RELEASE);
13377+
13378+#if CMD_DISCOVERY
13379+ great_inquisitor(adev);
13380+#endif
13381+
13382+ result = OK;
13383+ goto done;
13384+
13385+ /* error paths: undo everything in reverse order... */
13386+
13387+fail_register_netdev:
13388+
13389+ acxmem_s_delete_dma_regions(adev);
13390+
13391+fail_reset:
13392+fail_hw_params:
13393+ free_netdev(ndev);
13394+fail_unknown_chiptype:
13395+
13396+
13397+done:
13398+ FN_EXIT1(result);
13399+ return result;
13400+}
13401+
13402+
13403+/***********************************************************************
13404+** acxmem_e_remove
13405+**
13406+** Shut device down (if not hot unplugged)
13407+** and deallocate PCI resources for the acx chip.
13408+**
13409+** pdev - ptr to PCI device structure containing info about pci configuration
13410+*/
13411+static int __devexit
13412+acxmem_e_remove(struct pcmcia_device *link)
13413+{
13414+ struct net_device *ndev;
13415+ acx_device_t *adev;
13416+ unsigned long flags;
13417+
13418+ FN_ENTER;
13419+
13420+ ndev = ((local_info_t*)link->priv)->ndev;
13421+ if (!ndev) {
13422+ log(L_DEBUG, "%s: card is unused. Skipping any release code\n",
13423+ __func__);
13424+ goto end;
13425+ }
13426+
13427+ adev = ndev2adev(ndev);
13428+
13429+ /* If device wasn't hot unplugged... */
13430+ if (adev_present(adev)) {
13431+
13432+ acx_sem_lock(adev);
13433+
13434+ /* disable both Tx and Rx to shut radio down properly */
13435+ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_TX, NULL, 0);
13436+ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_RX, NULL, 0);
13437+
13438+#ifdef REDUNDANT
13439+ /* put the eCPU to sleep to save power
13440+ * Halting is not possible currently,
13441+ * since not supported by all firmware versions */
13442+ acx_s_issue_cmd(adev, ACX100_CMD_SLEEP, NULL, 0);
13443+#endif
13444+ acx_lock(adev, flags);
13445+
13446+ /* disable power LED to save power :-) */
13447+ log(L_INIT, "switching off power LED to save power\n");
13448+ acxmem_l_power_led(adev, 0);
13449+
13450+ /* stop our eCPU */
13451+ if (IS_ACX111(adev)) {
13452+ /* FIXME: does this actually keep halting the eCPU?
13453+ * I don't think so...
13454+ */
13455+ acxmem_l_reset_mac(adev);
13456+ } else {
13457+ u16 temp;
13458+
13459+ /* halt eCPU */
13460+ temp = read_reg16(adev, IO_ACX_ECPU_CTRL) | 0x1;
13461+ write_reg16(adev, IO_ACX_ECPU_CTRL, temp);
13462+ write_flush(adev);
13463+ }
13464+
13465+ acx_unlock(adev, flags);
13466+
13467+ acx_sem_unlock(adev);
13468+ }
13469+
13470+
13471+ /*
13472+ * Unregister the notifier chain
13473+ */
13474+ unregister_netdevice_notifier(&acx_netdev_notifier);
13475+
13476+ /* unregister the device to not let the kernel
13477+ * (e.g. ioctls) access a half-deconfigured device
13478+ * NB: this will cause acxmem_e_close() to be called,
13479+ * thus we shouldn't call it under sem! */
13480+ log(L_INIT, "removing device %s\n", ndev->name);
13481+ unregister_netdev(ndev);
13482+
13483+ /* unregister_netdev ensures that no references to us left.
13484+ * For paranoid reasons we continue to follow the rules */
13485+ acx_sem_lock(adev);
13486+
13487+ if (adev->dev_state_mask & ACX_STATE_IFACE_UP) {
13488+ acxmem_s_down(ndev);
13489+ CLEAR_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
13490+ }
13491+
13492+ acx_proc_unregister_entries(ndev);
13493+
13494+ acxmem_s_delete_dma_regions(adev);
13495+
13496+ /* finally, clean up PCI bus state */
13497+ if (adev->iobase) iounmap((void *)adev->iobase);
13498+
13499+ acx_sem_unlock(adev);
13500+
13501+ /* Free netdev (quite late,
13502+ * since otherwise we might get caught off-guard
13503+ * by a netdev timeout handler execution
13504+ * expecting to see a working dev...) */
13505+ free_netdev(ndev);
13506+
13507+ printk ("e_remove done\n");
13508+end:
13509+ FN_EXIT0;
13510+
13511+ return 0;
13512+}
13513+
13514+
13515+/***********************************************************************
13516+** TODO: PM code needs to be fixed / debugged / tested.
13517+*/
13518+#ifdef CONFIG_PM
13519+static int
13520+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
13521+acxmem_e_suspend( struct net_device *ndev, pm_message_t state)
13522+#else
13523+acxmem_e_suspend( struct net_device *ndev, u32 state)
13524+#endif
13525+{
13526+ FN_ENTER;
13527+ acx_device_t *adev;
13528+ printk("acx: suspend handler is experimental!\n");
13529+ printk("sus: dev %p\n", ndev);
13530+
13531+ if (!netif_running(ndev))
13532+ goto end;
13533+ // @@ need to get it from link or something like that
13534+ adev = ndev2adev(ndev);
13535+ printk("sus: adev %p\n", adev);
13536+
13537+ acx_sem_lock(adev);
13538+
13539+ netif_device_detach(adev->ndev); /* this one cannot sleep */
13540+ acxmem_s_down(adev->ndev);
13541+ /* down() does not set it to 0xffff, but here we really want that */
13542+ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff);
13543+ write_reg16(adev, IO_ACX_FEMR, 0x0);
13544+ acxmem_s_delete_dma_regions(adev);
13545+
13546+ /*
13547+ * Turn the ACX chip off.
13548+ */
13549+
13550+ acx_sem_unlock(adev);
13551+end:
13552+ FN_EXIT0;
13553+ return OK;
13554+}
13555+
13556+
13557+static void
13558+fw_resumer(struct work_struct *notused)
13559+{
13560+ acx_device_t *adev;
13561+ struct net_device *ndev = resume_ndev;
13562+
13563+ printk("acx: resume handler is experimental!\n");
13564+ printk("rsm: got dev %p\n", ndev);
13565+
13566+ if (!netif_running(ndev))
13567+ return;
13568+
13569+ adev = ndev2adev(ndev);
13570+ printk("rsm: got adev %p\n", adev);
13571+
13572+ acx_sem_lock(adev);
13573+
13574+ /*
13575+ * Turn on the ACX.
13576+ */
13577+
13578+ acxmem_complete_hw_reset (adev);
13579+
13580+ /*
13581+ * done by acx_s_set_defaults for initial startup
13582+ */
13583+ acxmem_set_interrupt_mask(adev);
13584+
13585+ printk ("rsm: bringing up interface\n");
13586+ SET_BIT (adev->set_mask, GETSET_ALL);
13587+ acxmem_s_up(ndev);
13588+ printk("rsm: acx up done\n");
13589+
13590+ /* now even reload all card parameters as they were before suspend,
13591+ * and possibly be back in the network again already :-)
13592+ */
13593+ /* - most settings updated in acxmem_s_up()
13594+ if (ACX_STATE_IFACE_UP & adev->dev_state_mask) {
13595+ adev->set_mask = GETSET_ALL;
13596+ acx_s_update_card_settings(adev);
13597+ printk("rsm: settings updated\n");
13598+ }
13599+ */
13600+ netif_device_attach(ndev);
13601+ printk("rsm: device attached\n");
13602+
13603+ acx_sem_unlock(adev);
13604+}
13605+
13606+DECLARE_WORK( fw_resume_work, fw_resumer );
13607+
13608+static int
13609+acxmem_e_resume(struct pcmcia_device *link)
13610+{
13611+ FN_ENTER;
13612+
13613+ //resume_pdev = pdev;
13614+ schedule_work( &fw_resume_work );
13615+
13616+ FN_EXIT0;
13617+ return OK;
13618+}
13619+#endif /* CONFIG_PM */
13620+
13621+
13622+/***********************************************************************
13623+** acxmem_s_up
13624+**
13625+** This function is called by acxmem_e_open (when ifconfig sets the device as up)
13626+**
13627+** Side effects:
13628+** - Enables on-card interrupt requests
13629+** - calls acx_s_start
13630+*/
13631+
13632+static void
13633+enable_acx_irq(acx_device_t *adev)
13634+{
13635+ FN_ENTER;
13636+ write_reg16(adev, IO_ACX_IRQ_MASK, adev->irq_mask);
13637+ write_reg16(adev, IO_ACX_FEMR, 0x8000);
13638+ adev->irqs_active = 1;
13639+ FN_EXIT0;
13640+}
13641+
13642+static void
13643+acxmem_s_up(struct net_device *ndev)
13644+{
13645+ acx_device_t *adev = ndev2adev(ndev);
13646+ unsigned long flags;
13647+
13648+ FN_ENTER;
13649+
13650+ acx_lock(adev, flags);
13651+ enable_acx_irq(adev);
13652+ acx_unlock(adev, flags);
13653+
13654+ /* acx fw < 1.9.3.e has a hardware timer, and older drivers
13655+ ** used to use it. But we don't do that anymore, our OS
13656+ ** has reliable software timers */
13657+ init_timer(&adev->mgmt_timer);
13658+ adev->mgmt_timer.function = acx_i_timer;
13659+ adev->mgmt_timer.data = (unsigned long)adev;
13660+
13661+ /* Need to set ACX_STATE_IFACE_UP first, or else
13662+ ** timer won't be started by acx_set_status() */
13663+ SET_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
13664+ switch (adev->mode) {
13665+ case ACX_MODE_0_ADHOC:
13666+ case ACX_MODE_2_STA:
13667+ /* actual scan cmd will happen in start() */
13668+ acx_set_status(adev, ACX_STATUS_1_SCANNING); break;
13669+ case ACX_MODE_3_AP:
13670+ case ACX_MODE_MONITOR:
13671+ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED); break;
13672+ }
13673+
13674+ acx_s_start(adev);
13675+
13676+ FN_EXIT0;
13677+}
13678+
13679+
13680+/***********************************************************************
13681+** acxmem_s_down
13682+**
13683+** This disables the netdevice
13684+**
13685+** Side effects:
13686+** - disables on-card interrupt request
13687+*/
13688+
13689+static void
13690+disable_acx_irq(acx_device_t *adev)
13691+{
13692+ FN_ENTER;
13693+
13694+ /* I guess mask is not 0xffff because acx100 won't signal
13695+ ** cmd completion then (needed for ifup).
13696+ ** Someone with acx100 please confirm */
13697+ write_reg16(adev, IO_ACX_IRQ_MASK, adev->irq_mask_off);
13698+ write_reg16(adev, IO_ACX_FEMR, 0x0);
13699+ adev->irqs_active = 0;
13700+ FN_EXIT0;
13701+}
13702+
13703+static void
13704+acxmem_s_down(struct net_device *ndev)
13705+{
13706+ acx_device_t *adev = ndev2adev(ndev);
13707+ unsigned long flags;
13708+
13709+ FN_ENTER;
13710+
13711+ /* Disable IRQs first, so that IRQs cannot race with us */
13712+ /* then wait until interrupts have finished executing on other CPUs */
13713+ acx_lock(adev, flags);
13714+ disable_acx_irq(adev);
13715+ synchronize_irq(adev->pdev->irq);
13716+ acx_unlock(adev, flags);
13717+
13718+ /* we really don't want to have an asynchronous tasklet disturb us
13719+ ** after something vital for its job has been shut down, so
13720+ ** end all remaining work now.
13721+ **
13722+ ** NB: carrier_off (done by set_status below) would lead to
13723+ ** not yet fully understood deadlock in FLUSH_SCHEDULED_WORK().
13724+ ** That's why we do FLUSH first.
13725+ **
13726+ ** NB2: we have a bad locking bug here: FLUSH_SCHEDULED_WORK()
13727+ ** waits for acx_e_after_interrupt_task to complete if it is running
13728+ ** on another CPU, but acx_e_after_interrupt_task
13729+ ** will sleep on sem forever, because it is taken by us!
13730+ ** Work around that by temporary sem unlock.
13731+ ** This will fail miserably if we'll be hit by concurrent
13732+ ** iwconfig or something in between. TODO! */
13733+ acx_sem_unlock(adev);
13734+ FLUSH_SCHEDULED_WORK();
13735+ acx_sem_lock(adev);
13736+
13737+ /* This is possible:
13738+ ** FLUSH_SCHEDULED_WORK -> acx_e_after_interrupt_task ->
13739+ ** -> set_status(ASSOCIATED) -> wake_queue()
13740+ ** That's why we stop queue _after_ FLUSH_SCHEDULED_WORK
13741+ ** lock/unlock is just paranoia, maybe not needed */
13742+ acx_lock(adev, flags);
13743+ acx_stop_queue(ndev, "on ifdown");
13744+ acx_set_status(adev, ACX_STATUS_0_STOPPED);
13745+ acx_unlock(adev, flags);
13746+
13747+ /* kernel/timer.c says it's illegal to del_timer_sync()
13748+ ** a timer which restarts itself. We guarantee this cannot
13749+ ** ever happen because acx_i_timer() never does this if
13750+ ** status is ACX_STATUS_0_STOPPED */
13751+ del_timer_sync(&adev->mgmt_timer);
13752+
13753+ FN_EXIT0;
13754+}
13755+
13756+
13757+/***********************************************************************
13758+** acxmem_e_open
13759+**
13760+** Called as a result of SIOCSIFFLAGS ioctl changing the flags bit IFF_UP
13761+** from clear to set. In other words: ifconfig up.
13762+**
13763+** Returns:
13764+** 0 success
13765+** >0 f/w reported error
13766+** <0 driver reported error
13767+*/
13768+static int
13769+acxmem_e_open(struct net_device *ndev)
13770+{
13771+ acx_device_t *adev = ndev2adev(ndev);
13772+ int result = OK;
13773+
13774+ FN_ENTER;
13775+
13776+ acx_sem_lock(adev);
13777+
13778+ acx_init_task_scheduler(adev);
13779+
13780+/* TODO: pci_set_power_state(pdev, PCI_D0); ? */
13781+
13782+#if 0
13783+ /* request shared IRQ handler */
13784+ if (request_irq(ndev->irq, acxmem_i_interrupt, SA_INTERRUPT, ndev->name, ndev)) {
13785+ printk("%s: request_irq FAILED\n", ndev->name);
13786+ result = -EAGAIN;
13787+ goto done;
13788+ }
13789+ set_irq_type (ndev->irq, IRQT_FALLING);
13790+ log(L_DEBUG|L_IRQ, "request_irq %d successful\n", ndev->irq);
13791+#endif
13792+
13793+ /* ifup device */
13794+ acxmem_s_up(ndev);
13795+
13796+ /* We don't currently have to do anything else.
13797+ * The setup of the MAC should be subsequently completed via
13798+ * the mlme commands.
13799+ * Higher layers know we're ready from dev->start==1 and
13800+ * dev->tbusy==0. Our rx path knows to pass up received/
13801+ * frames because of dev->flags&IFF_UP is true.
13802+ */
13803+done:
13804+ acx_sem_unlock(adev);
13805+
13806+ FN_EXIT1(result);
13807+ return result;
13808+}
13809+
13810+
13811+/***********************************************************************
13812+** acxmem_e_close
13813+**
13814+** Called as a result of SIOCSIIFFLAGS ioctl changing the flags bit IFF_UP
13815+** from set to clear. I.e. called by "ifconfig DEV down"
13816+**
13817+** Returns:
13818+** 0 success
13819+** >0 f/w reported error
13820+** <0 driver reported error
13821+*/
13822+static int
13823+acxmem_e_close(struct net_device *ndev)
13824+{
13825+ acx_device_t *adev = ndev2adev(ndev);
13826+
13827+ FN_ENTER;
13828+
13829+ acx_sem_lock(adev);
13830+
13831+ /* ifdown device */
13832+ CLEAR_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
13833+ if (netif_device_present(ndev)) {
13834+ acxmem_s_down(ndev);
13835+ }
13836+
13837+ /* disable all IRQs, release shared IRQ handler */
13838+ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff);
13839+ write_reg16(adev, IO_ACX_FEMR, 0x0);
13840+ free_irq(ndev->irq, ndev);
13841+
13842+/* TODO: pci_set_power_state(pdev, PCI_D3hot); ? */
13843+
13844+ /* We currently don't have to do anything else.
13845+ * Higher layers know we're not ready from dev->start==0 and
13846+ * dev->tbusy==1. Our rx path knows to not pass up received
13847+ * frames because of dev->flags&IFF_UP is false.
13848+ */
13849+ acx_sem_unlock(adev);
13850+
13851+ log(L_INIT, "closed device\n");
13852+ FN_EXIT0;
13853+ return OK;
13854+}
13855+
13856+
13857+/***********************************************************************
13858+** acxmem_i_tx_timeout
13859+**
13860+** Called from network core. Must not sleep!
13861+*/
13862+static void
13863+acxmem_i_tx_timeout(struct net_device *ndev)
13864+{
13865+ acx_device_t *adev = ndev2adev(ndev);
13866+ unsigned long flags;
13867+ unsigned int tx_num_cleaned;
13868+
13869+ FN_ENTER;
13870+
13871+ acx_lock(adev, flags);
13872+
13873+ /* clean processed tx descs, they may have been completely full */
13874+ tx_num_cleaned = acxmem_l_clean_txdesc(adev);
13875+
13876+ /* nothing cleaned, yet (almost) no free buffers available?
13877+ * --> clean all tx descs, no matter which status!!
13878+ * Note that I strongly suspect that doing emergency cleaning
13879+ * may confuse the firmware. This is a last ditch effort to get
13880+ * ANYTHING to work again...
13881+ *
13882+ * TODO: it's best to simply reset & reinit hw from scratch...
13883+ */
13884+ if ((adev->tx_free <= TX_EMERG_CLEAN) && (tx_num_cleaned == 0)) {
13885+ printk("%s: FAILED to free any of the many full tx buffers. "
13886+ "Switching to emergency freeing. "
13887+ "Please report!\n", ndev->name);
13888+ acxmem_l_clean_txdesc_emergency(adev);
13889+ }
13890+
13891+ if (acx_queue_stopped(ndev) && (ACX_STATUS_4_ASSOCIATED == adev->status))
13892+ acx_wake_queue(ndev, "after tx timeout");
13893+
13894+ /* stall may have happened due to radio drift, so recalib radio */
13895+ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_RADIO_RECALIB);
13896+
13897+ /* do unimportant work last */
13898+ printk("%s: tx timeout!\n", ndev->name);
13899+ adev->stats.tx_errors++;
13900+
13901+ acx_unlock(adev, flags);
13902+
13903+ FN_EXIT0;
13904+}
13905+
13906+
13907+/***********************************************************************
13908+** acxmem_i_set_multicast_list
13909+** FIXME: most likely needs refinement
13910+*/
13911+static void
13912+acxmem_i_set_multicast_list(struct net_device *ndev)
13913+{
13914+ acx_device_t *adev = ndev2adev(ndev);
13915+ unsigned long flags;
13916+
13917+ FN_ENTER;
13918+
13919+ acx_lock(adev, flags);
13920+
13921+ /* firmwares don't have allmulti capability,
13922+ * so just use promiscuous mode instead in this case. */
13923+ if (ndev->flags & (IFF_PROMISC|IFF_ALLMULTI)) {
13924+ SET_BIT(adev->rx_config_1, RX_CFG1_RCV_PROMISCUOUS);
13925+ CLEAR_BIT(adev->rx_config_1, RX_CFG1_FILTER_ALL_MULTI);
13926+ SET_BIT(adev->set_mask, SET_RXCONFIG);
13927+ /* let kernel know in case *we* needed to set promiscuous */
13928+ ndev->flags |= (IFF_PROMISC|IFF_ALLMULTI);
13929+ } else {
13930+ CLEAR_BIT(adev->rx_config_1, RX_CFG1_RCV_PROMISCUOUS);
13931+ SET_BIT(adev->rx_config_1, RX_CFG1_FILTER_ALL_MULTI);
13932+ SET_BIT(adev->set_mask, SET_RXCONFIG);
13933+ ndev->flags &= ~(IFF_PROMISC|IFF_ALLMULTI);
13934+ }
13935+
13936+ /* cannot update card settings directly here, atomic context */
13937+ acx_schedule_task(adev, ACX_AFTER_IRQ_UPDATE_CARD_CFG);
13938+
13939+ acx_unlock(adev, flags);
13940+
13941+ FN_EXIT0;
13942+}
13943+
13944+
13945+/***************************************************************
13946+** acxmem_l_process_rxdesc
13947+**
13948+** Called directly and only from the IRQ handler
13949+*/
13950+
13951+#if !ACX_DEBUG
13952+static inline void log_rxbuffer(const acx_device_t *adev) {}
13953+#else
13954+static void
13955+log_rxbuffer(const acx_device_t *adev)
13956+{
13957+ register const struct rxhostdesc *rxhostdesc;
13958+ int i;
13959+ /* no FN_ENTER here, we don't want that */
13960+
13961+ rxhostdesc = adev->rxhostdesc_start;
13962+ if (unlikely(!rxhostdesc)) return;
13963+ for (i = 0; i < RX_CNT; i++) {
13964+ if ((rxhostdesc->Ctl_16 & cpu_to_le16(DESC_CTL_HOSTOWN))
13965+ && (rxhostdesc->Status & cpu_to_le32(DESC_STATUS_FULL)))
13966+ printk("rx: buf %d full\n", i);
13967+ rxhostdesc++;
13968+ }
13969+}
13970+#endif
13971+
13972+static void
13973+acxmem_l_process_rxdesc(acx_device_t *adev)
13974+{
13975+ register rxhostdesc_t *hostdesc;
13976+ register rxdesc_t *rxdesc;
13977+ unsigned count, tail;
13978+ u32 addr;
13979+ u8 Ctl_8;
13980+
13981+ FN_ENTER;
13982+
13983+ if (unlikely(acx_debug & L_BUFR))
13984+ log_rxbuffer(adev);
13985+
13986+ /* First, have a loop to determine the first descriptor that's
13987+ * full, just in case there's a mismatch between our current
13988+ * rx_tail and the full descriptor we're supposed to handle. */
13989+ tail = adev->rx_tail;
13990+ count = RX_CNT;
13991+ while (1) {
13992+ hostdesc = &adev->rxhostdesc_start[tail];
13993+ rxdesc = &adev->rxdesc_start[tail];
13994+ /* advance tail regardless of outcome of the below test */
13995+ tail = (tail + 1) % RX_CNT;
13996+
13997+ /*
13998+ * Unlike the PCI interface, where the ACX can write directly to
13999+ * the host descriptors, on the slave memory interface we have to
14000+ * pull these. All we really need to do is check the Ctl_8 field
14001+ * in the rx descriptor on the ACX, which should be 0x11000000 if
14002+ * we should process it.
14003+ */
14004+ Ctl_8 = hostdesc->Ctl_16 = read_slavemem8 (adev, (u32) &(rxdesc->Ctl_8));
14005+ if ((Ctl_8 & DESC_CTL_HOSTOWN) &&
14006+ (Ctl_8 & DESC_CTL_ACXDONE))
14007+ break; /* found it! */
14008+
14009+ if (unlikely(!--count)) /* hmm, no luck: all descs empty, bail out */
14010+ goto end;
14011+ }
14012+
14013+ /* now process descriptors, starting with the first we figured out */
14014+ while (1) {
14015+ log(L_BUFR, "rx: tail=%u Ctl_8=%02X\n", tail, Ctl_8);
14016+ /*
14017+ * If the ACX has CTL_RECLAIM set on this descriptor there
14018+ * is no buffer associated; it just wants us to tell it to
14019+ * reclaim the memory.
14020+ */
14021+ if (!(Ctl_8 & DESC_CTL_RECLAIM)) {
14022+
14023+ /*
14024+ * slave interface - pull data now
14025+ */
14026+ hostdesc->length = read_slavemem16 (adev, (u32) &(rxdesc->total_length));
14027+
14028+ /*
14029+ * hostdesc->data is an rxbuffer_t, which includes header information,
14030+ * but the length in the data packet doesn't. The header information
14031+ * takes up an additional 12 bytes, so add that to the length we copy.
14032+ */
14033+ addr = read_slavemem32 (adev, (u32) &(rxdesc->ACXMemPtr));
14034+ if (addr) {
14035+ /*
14036+ * How can &(rxdesc->ACXMemPtr) above ever be zero? Looks like we
14037+ * get that now and then - try to trap it for debug.
14038+ */
14039+ if (addr & 0xffff0000) {
14040+ printk("rxdesc 0x%08x\n", (u32) rxdesc);
14041+ dump_acxmem (adev, 0, 0x10000);
14042+ panic ("Bad access!");
14043+ }
14044+ chaincopy_from_slavemem (adev, (u8 *) hostdesc->data, addr,
14045+ hostdesc->length +
14046+ (u32) &((rxbuffer_t *)0)->hdr_a3);
14047+ acx_l_process_rxbuf(adev, hostdesc->data);
14048+ }
14049+ }
14050+ else {
14051+ printk ("rx reclaim only!\n");
14052+ }
14053+
14054+ hostdesc->Status = 0;
14055+
14056+ /*
14057+ * Let the ACX know we're done.
14058+ */
14059+ CLEAR_BIT (Ctl_8, DESC_CTL_HOSTOWN);
14060+ SET_BIT (Ctl_8, DESC_CTL_HOSTDONE);
14061+ SET_BIT (Ctl_8, DESC_CTL_RECLAIM);
14062+ write_slavemem8 (adev, (u32) &rxdesc->Ctl_8, Ctl_8);
14063+
14064+ /*
14065+ * Now tell the ACX we've finished with the receive buffer so
14066+ * it can finish the reclaim.
14067+ */
14068+ write_reg16 (adev, IO_ACX_INT_TRIG, INT_TRIG_RXPRC);
14069+
14070+ /* ok, descriptor is handled, now check the next descriptor */
14071+ hostdesc = &adev->rxhostdesc_start[tail];
14072+ rxdesc = &adev->rxdesc_start[tail];
14073+
14074+ Ctl_8 = hostdesc->Ctl_16 = read_slavemem8 (adev, (u32) &(rxdesc->Ctl_8));
14075+
14076+ /* if next descriptor is empty, then bail out */
14077+ if (!(Ctl_8 & DESC_CTL_HOSTOWN) || !(Ctl_8 & DESC_CTL_ACXDONE))
14078+ break;
14079+
14080+ tail = (tail + 1) % RX_CNT;
14081+ }
14082+end:
14083+ adev->rx_tail = tail;
14084+ FN_EXIT0;
14085+}
14086+
14087+
14088+/***********************************************************************
14089+** acxmem_i_interrupt
14090+**
14091+** IRQ handler (atomic context, must not sleep, blah, blah)
14092+*/
14093+
14094+/* scan is complete. all frames now on the receive queue are valid */
14095+#define INFO_SCAN_COMPLETE 0x0001
14096+#define INFO_WEP_KEY_NOT_FOUND 0x0002
14097+/* hw has been reset as the result of a watchdog timer timeout */
14098+#define INFO_WATCH_DOG_RESET 0x0003
14099+/* failed to send out NULL frame from PS mode notification to AP */
14100+/* recommended action: try entering 802.11 PS mode again */
14101+#define INFO_PS_FAIL 0x0004
14102+/* encryption/decryption process on a packet failed */
14103+#define INFO_IV_ICV_FAILURE 0x0005
14104+
14105+/* Info mailbox format:
14106+2 bytes: type
14107+2 bytes: status
14108+more bytes may follow
14109+ rumors say about status:
14110+ 0x0000 info available (set by hw)
14111+ 0x0001 information received (must be set by host)
14112+ 0x1000 info available, mailbox overflowed (messages lost) (set by hw)
14113+ but in practice we've seen:
14114+ 0x9000 when we did not set status to 0x0001 on prev message
14115+ 0x1001 when we did set it
14116+ 0x0000 was never seen
14117+ conclusion: this is really a bitfield:
14118+ 0x1000 is 'info available' bit
14119+ 'mailbox overflowed' bit is 0x8000, not 0x1000
14120+ value of 0x0000 probably means that there are no messages at all
14121+ P.S. I dunno how in hell hw is supposed to notice that messages are lost -
14122+ it does NOT clear bit 0x0001, and this bit will probably stay forever set
14123+ after we set it once. Let's hope this will be fixed in firmware someday
14124+*/
14125+
14126+static void
14127+handle_info_irq(acx_device_t *adev)
14128+{
14129+#if ACX_DEBUG
14130+ static const char * const info_type_msg[] = {
14131+ "(unknown)",
14132+ "scan complete",
14133+ "WEP key not found",
14134+ "internal watchdog reset was done",
14135+ "failed to send powersave (NULL frame) notification to AP",
14136+ "encrypt/decrypt on a packet has failed",
14137+ "TKIP tx keys disabled",
14138+ "TKIP rx keys disabled",
14139+ "TKIP rx: key ID not found",
14140+ "???",
14141+ "???",
14142+ "???",
14143+ "???",
14144+ "???",
14145+ "???",
14146+ "???",
14147+ "TKIP IV value exceeds thresh"
14148+ };
14149+#endif
14150+ u32 info_type, info_status;
14151+
14152+ info_type = read_slavemem32 (adev, (u32) adev->info_area);
14153+
14154+ info_status = (info_type >> 16);
14155+ info_type = (u16)info_type;
14156+
14157+ /* inform fw that we have read this info message */
14158+ write_slavemem32(adev, (u32) adev->info_area, info_type | 0x00010000);
14159+ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_INFOACK);
14160+ write_flush(adev);
14161+
14162+ log(L_CTL, "info_type:%04X info_status:%04X\n",
14163+ info_type, info_status);
14164+
14165+ log(L_IRQ, "got Info IRQ: status %04X type %04X: %s\n",
14166+ info_status, info_type,
14167+ info_type_msg[(info_type >= VEC_SIZE(info_type_msg)) ?
14168+ 0 : info_type]
14169+ );
14170+}
14171+
14172+
14173+static void
14174+log_unusual_irq(u16 irqtype) {
14175+ /*
14176+ if (!printk_ratelimit())
14177+ return;
14178+ */
14179+
14180+ printk("acx: got");
14181+ if (irqtype & HOST_INT_TX_XFER) {
14182+ printk(" Tx_Xfer");
14183+ }
14184+ if (irqtype & HOST_INT_RX_COMPLETE) {
14185+ printk(" Rx_Complete");
14186+ }
14187+ if (irqtype & HOST_INT_DTIM) {
14188+ printk(" DTIM");
14189+ }
14190+ if (irqtype & HOST_INT_BEACON) {
14191+ printk(" Beacon");
14192+ }
14193+ if (irqtype & HOST_INT_TIMER) {
14194+ log(L_IRQ, " Timer");
14195+ }
14196+ if (irqtype & HOST_INT_KEY_NOT_FOUND) {
14197+ printk(" Key_Not_Found");
14198+ }
14199+ if (irqtype & HOST_INT_IV_ICV_FAILURE) {
14200+ printk(" IV_ICV_Failure (crypto)");
14201+ }
14202+ /* HOST_INT_CMD_COMPLETE */
14203+ /* HOST_INT_INFO */
14204+ if (irqtype & HOST_INT_OVERFLOW) {
14205+ printk(" Overflow");
14206+ }
14207+ if (irqtype & HOST_INT_PROCESS_ERROR) {
14208+ printk(" Process_Error");
14209+ }
14210+ /* HOST_INT_SCAN_COMPLETE */
14211+ if (irqtype & HOST_INT_FCS_THRESHOLD) {
14212+ printk(" FCS_Threshold");
14213+ }
14214+ if (irqtype & HOST_INT_UNKNOWN) {
14215+ printk(" Unknown");
14216+ }
14217+ printk(" IRQ(s)\n");
14218+}
14219+
14220+
14221+static void
14222+update_link_quality_led(acx_device_t *adev)
14223+{
14224+ int qual;
14225+
14226+ qual = acx_signal_determine_quality(adev->wstats.qual.level, adev->wstats.qual.noise);
14227+ if (qual > adev->brange_max_quality)
14228+ qual = adev->brange_max_quality;
14229+
14230+ if (time_after(jiffies, adev->brange_time_last_state_change +
14231+ (HZ/2 - HZ/2 * (unsigned long)qual / adev->brange_max_quality ) )) {
14232+ acxmem_l_power_led(adev, (adev->brange_last_state == 0));
14233+ adev->brange_last_state ^= 1; /* toggle */
14234+ adev->brange_time_last_state_change = jiffies;
14235+ }
14236+}
14237+
14238+
14239+#define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* a la orinoco.c */
14240+
14241+static irqreturn_t
14242+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
14243+acxmem_i_interrupt(int irq, void *dev_id)
14244+#else
14245+acxmwm_i_interrupt(int irq, void *dev_id, struct pt_regs *regs)
14246+#endif
14247+{
14248+ acx_device_t *adev;
14249+ unsigned long flags;
14250+ unsigned int irqcount = MAX_IRQLOOPS_PER_JIFFY;
14251+ register u16 irqtype;
14252+ u16 unmasked;
14253+
14254+ adev = ndev2adev((struct net_device*)dev_id);
14255+
14256+ /* LOCKING: can just spin_lock() since IRQs are disabled anyway.
14257+ * I am paranoid */
14258+ acx_lock(adev, flags);
14259+
14260+ unmasked = read_reg16(adev, IO_ACX_IRQ_STATUS_CLEAR);
14261+ if (unlikely(0xffff == unmasked)) {
14262+ /* 0xffff value hints at missing hardware,
14263+ * so don't do anything.
14264+ * Not very clean, but other drivers do the same... */
14265+ log(L_IRQ, "IRQ type:FFFF - device removed? IRQ_NONE\n");
14266+ goto none;
14267+ }
14268+
14269+ /* We will check only "interesting" IRQ types */
14270+ irqtype = unmasked & ~adev->irq_mask;
14271+ if (!irqtype) {
14272+ /* We are on a shared IRQ line and it wasn't our IRQ */
14273+ log(L_IRQ, "IRQ type:%04X, mask:%04X - all are masked, IRQ_NONE\n",
14274+ unmasked, adev->irq_mask);
14275+ goto none;
14276+ }
14277+
14278+ /* Done here because IRQ_NONEs taking three lines of log
14279+ ** drive me crazy */
14280+ FN_ENTER;
14281+
14282+#define IRQ_ITERATE 1
14283+#if IRQ_ITERATE
14284+if (jiffies != adev->irq_last_jiffies) {
14285+ adev->irq_loops_this_jiffy = 0;
14286+ adev->irq_last_jiffies = jiffies;
14287+}
14288+
14289+/* safety condition; we'll normally abort loop below
14290+ * in case no IRQ type occurred */
14291+while (likely(--irqcount)) {
14292+#endif
14293+ /* ACK all IRQs ASAP */
14294+ write_reg16(adev, IO_ACX_IRQ_ACK, 0xffff);
14295+
14296+ log(L_IRQ, "IRQ type:%04X, mask:%04X, type & ~mask:%04X\n",
14297+ unmasked, adev->irq_mask, irqtype);
14298+
14299+ /* Handle most important IRQ types first */
14300+ if (irqtype & HOST_INT_RX_DATA) {
14301+ log(L_IRQ, "got Rx_Data IRQ\n");
14302+ acxmem_l_process_rxdesc(adev);
14303+ }
14304+ if (irqtype & HOST_INT_TX_COMPLETE) {
14305+ log(L_IRQ, "got Tx_Complete IRQ\n");
14306+ /* don't clean up on each Tx complete, wait a bit
14307+ * unless we're going towards full, in which case
14308+ * we do it immediately, too (otherwise we might lockup
14309+ * with a full Tx buffer if we go into
14310+ * acxmem_l_clean_txdesc() at a time when we won't wakeup
14311+ * the net queue in there for some reason...) */
14312+ if (adev->tx_free <= TX_START_CLEAN) {
14313+#if TX_CLEANUP_IN_SOFTIRQ
14314+ acx_schedule_task(adev, ACX_AFTER_IRQ_TX_CLEANUP);
14315+#else
14316+ acxmem_l_clean_txdesc(adev);
14317+#endif
14318+ }
14319+ }
14320+
14321+ /* Less frequent ones */
14322+ if (irqtype & (0
14323+ | HOST_INT_CMD_COMPLETE
14324+ | HOST_INT_INFO
14325+ | HOST_INT_SCAN_COMPLETE
14326+ )) {
14327+ if (irqtype & HOST_INT_CMD_COMPLETE) {
14328+ log(L_IRQ, "got Command_Complete IRQ\n");
14329+ /* save the state for the running issue_cmd() */
14330+ SET_BIT(adev->irq_status, HOST_INT_CMD_COMPLETE);
14331+ }
14332+ if (irqtype & HOST_INT_INFO) {
14333+ handle_info_irq(adev);
14334+ }
14335+ if (irqtype & HOST_INT_SCAN_COMPLETE) {
14336+ log(L_IRQ, "got Scan_Complete IRQ\n");
14337+ /* need to do that in process context */
14338+ acx_schedule_task(adev, ACX_AFTER_IRQ_COMPLETE_SCAN);
14339+ /* remember that fw is not scanning anymore */
14340+ SET_BIT(adev->irq_status, HOST_INT_SCAN_COMPLETE);
14341+ }
14342+ }
14343+
14344+ /* These we just log, but either they happen rarely
14345+ * or we keep them masked out */
14346+ if (irqtype & (0
14347+ /* | HOST_INT_RX_DATA */
14348+ /* | HOST_INT_TX_COMPLETE */
14349+ | HOST_INT_TX_XFER
14350+ | HOST_INT_RX_COMPLETE
14351+ | HOST_INT_DTIM
14352+ | HOST_INT_BEACON
14353+ | HOST_INT_TIMER
14354+ | HOST_INT_KEY_NOT_FOUND
14355+ | HOST_INT_IV_ICV_FAILURE
14356+ /* | HOST_INT_CMD_COMPLETE */
14357+ /* | HOST_INT_INFO */
14358+ | HOST_INT_OVERFLOW
14359+ | HOST_INT_PROCESS_ERROR
14360+ /* | HOST_INT_SCAN_COMPLETE */
14361+ | HOST_INT_FCS_THRESHOLD
14362+ | HOST_INT_UNKNOWN
14363+ )) {
14364+ log_unusual_irq(irqtype);
14365+ }
14366+
14367+#if IRQ_ITERATE
14368+ unmasked = read_reg16(adev, IO_ACX_IRQ_STATUS_CLEAR);
14369+ irqtype = unmasked & ~adev->irq_mask;
14370+ /* Bail out if no new IRQ bits or if all are masked out */
14371+ if (!irqtype)
14372+ break;
14373+
14374+ if (unlikely(++adev->irq_loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY)) {
14375+ printk(KERN_ERR "acx: too many interrupts per jiffy!\n");
14376+ /* Looks like card floods us with IRQs! Try to stop that */
14377+ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff);
14378+ /* This will short-circuit all future attempts to handle IRQ.
14379+ * We cant do much more... */
14380+ adev->irq_mask = 0;
14381+ break;
14382+ }
14383+}
14384+#endif
14385+ /* Routine to perform blink with range */
14386+ if (unlikely(adev->led_power == 2))
14387+ update_link_quality_led(adev);
14388+
14389+/* handled: */
14390+ /* write_flush(adev); - not needed, last op was read anyway */
14391+ acx_unlock(adev, flags);
14392+ FN_EXIT0;
14393+ return IRQ_HANDLED;
14394+
14395+none:
14396+ acx_unlock(adev, flags);
14397+ return IRQ_NONE;
14398+}
14399+
14400+
14401+/***********************************************************************
14402+** acxmem_l_power_led
14403+*/
14404+void
14405+acxmem_l_power_led(acx_device_t *adev, int enable)
14406+{
14407+ u16 gpio_pled = IS_ACX111(adev) ? 0x0040 : 0x0800;
14408+
14409+ /* A hack. Not moving message rate limiting to adev->xxx
14410+ * (it's only a debug message after all) */
14411+ static int rate_limit = 0;
14412+
14413+ if (rate_limit++ < 3)
14414+ log(L_IOCTL, "Please report in case toggling the power "
14415+ "LED doesn't work for your card!\n");
14416+ if (enable)
14417+ write_reg16(adev, IO_ACX_GPIO_OUT,
14418+ read_reg16(adev, IO_ACX_GPIO_OUT) & ~gpio_pled);
14419+ else
14420+ write_reg16(adev, IO_ACX_GPIO_OUT,
14421+ read_reg16(adev, IO_ACX_GPIO_OUT) | gpio_pled);
14422+}
14423+
14424+
14425+/***********************************************************************
14426+** Ioctls
14427+*/
14428+
14429+/***********************************************************************
14430+*/
14431+int
14432+acx111pci_ioctl_info(
14433+ struct net_device *ndev,
14434+ struct iw_request_info *info,
14435+ struct iw_param *vwrq,
14436+ char *extra)
14437+{
14438+#if ACX_DEBUG > 1
14439+ acx_device_t *adev = ndev2adev(ndev);
14440+ rxdesc_t *rxdesc;
14441+ txdesc_t *txdesc;
14442+ rxhostdesc_t *rxhostdesc;
14443+ txhostdesc_t *txhostdesc;
14444+ struct acx111_ie_memoryconfig memconf;
14445+ struct acx111_ie_queueconfig queueconf;
14446+ unsigned long flags;
14447+ int i;
14448+ char memmap[0x34];
14449+ char rxconfig[0x8];
14450+ char fcserror[0x8];
14451+ char ratefallback[0x5];
14452+
14453+ if ( !(acx_debug & (L_IOCTL|L_DEBUG)) )
14454+ return OK;
14455+ /* using printk() since we checked debug flag already */
14456+
14457+ acx_sem_lock(adev);
14458+
14459+ if (!IS_ACX111(adev)) {
14460+ printk("acx111-specific function called "
14461+ "with non-acx111 chip, aborting\n");
14462+ goto end_ok;
14463+ }
14464+
14465+ /* get Acx111 Memory Configuration */
14466+ memset(&memconf, 0, sizeof(memconf));
14467+ /* BTW, fails with 12 (Write only) error code.
14468+ ** Retained for easy testing of issue_cmd error handling :) */
14469+ printk ("Interrogating queue config\n");
14470+ acx_s_interrogate(adev, &memconf, ACX1xx_IE_QUEUE_CONFIG);
14471+ printk ("done with queue config\n");
14472+
14473+ /* get Acx111 Queue Configuration */
14474+ memset(&queueconf, 0, sizeof(queueconf));
14475+ printk ("Interrogating mem config options\n");
14476+ acx_s_interrogate(adev, &queueconf, ACX1xx_IE_MEMORY_CONFIG_OPTIONS);
14477+ printk ("done with mem config options\n");
14478+
14479+ /* get Acx111 Memory Map */
14480+ memset(memmap, 0, sizeof(memmap));
14481+ printk ("Interrogating mem map\n");
14482+ acx_s_interrogate(adev, &memmap, ACX1xx_IE_MEMORY_MAP);
14483+ printk ("done with mem map\n");
14484+
14485+ /* get Acx111 Rx Config */
14486+ memset(rxconfig, 0, sizeof(rxconfig));
14487+ printk ("Interrogating rxconfig\n");
14488+ acx_s_interrogate(adev, &rxconfig, ACX1xx_IE_RXCONFIG);
14489+ printk ("done with queue rxconfig\n");
14490+
14491+ /* get Acx111 fcs error count */
14492+ memset(fcserror, 0, sizeof(fcserror));
14493+ printk ("Interrogating fcs err count\n");
14494+ acx_s_interrogate(adev, &fcserror, ACX1xx_IE_FCS_ERROR_COUNT);
14495+ printk ("done with err count\n");
14496+
14497+ /* get Acx111 rate fallback */
14498+ memset(ratefallback, 0, sizeof(ratefallback));
14499+ printk ("Interrogating rate fallback\n");
14500+ acx_s_interrogate(adev, &ratefallback, ACX1xx_IE_RATE_FALLBACK);
14501+ printk ("done with rate fallback\n");
14502+
14503+ /* force occurrence of a beacon interrupt */
14504+ /* TODO: comment why is this necessary */
14505+ write_reg16(adev, IO_ACX_HINT_TRIG, HOST_INT_BEACON);
14506+
14507+ /* dump Acx111 Mem Configuration */
14508+ printk("dump mem config:\n"
14509+ "data read: %d, struct size: %d\n"
14510+ "Number of stations: %1X\n"
14511+ "Memory block size: %1X\n"
14512+ "tx/rx memory block allocation: %1X\n"
14513+ "count rx: %X / tx: %X queues\n"
14514+ "options %1X\n"
14515+ "fragmentation %1X\n"
14516+ "Rx Queue 1 Count Descriptors: %X\n"
14517+ "Rx Queue 1 Host Memory Start: %X\n"
14518+ "Tx Queue 1 Count Descriptors: %X\n"
14519+ "Tx Queue 1 Attributes: %X\n",
14520+ memconf.len, (int) sizeof(memconf),
14521+ memconf.no_of_stations,
14522+ memconf.memory_block_size,
14523+ memconf.tx_rx_memory_block_allocation,
14524+ memconf.count_rx_queues, memconf.count_tx_queues,
14525+ memconf.options,
14526+ memconf.fragmentation,
14527+ memconf.rx_queue1_count_descs,
14528+ acx2cpu(memconf.rx_queue1_host_rx_start),
14529+ memconf.tx_queue1_count_descs,
14530+ memconf.tx_queue1_attributes);
14531+
14532+ /* dump Acx111 Queue Configuration */
14533+ printk("dump queue head:\n"
14534+ "data read: %d, struct size: %d\n"
14535+ "tx_memory_block_address (from card): %X\n"
14536+ "rx_memory_block_address (from card): %X\n"
14537+ "rx1_queue address (from card): %X\n"
14538+ "tx1_queue address (from card): %X\n"
14539+ "tx1_queue attributes (from card): %X\n",
14540+ queueconf.len, (int) sizeof(queueconf),
14541+ queueconf.tx_memory_block_address,
14542+ queueconf.rx_memory_block_address,
14543+ queueconf.rx1_queue_address,
14544+ queueconf.tx1_queue_address,
14545+ queueconf.tx1_attributes);
14546+
14547+ /* dump Acx111 Mem Map */
14548+ printk("dump mem map:\n"
14549+ "data read: %d, struct size: %d\n"
14550+ "Code start: %X\n"
14551+ "Code end: %X\n"
14552+ "WEP default key start: %X\n"
14553+ "WEP default key end: %X\n"
14554+ "STA table start: %X\n"
14555+ "STA table end: %X\n"
14556+ "Packet template start: %X\n"
14557+ "Packet template end: %X\n"
14558+ "Queue memory start: %X\n"
14559+ "Queue memory end: %X\n"
14560+ "Packet memory pool start: %X\n"
14561+ "Packet memory pool end: %X\n"
14562+ "iobase: %p\n"
14563+ "iobase2: %p\n",
14564+ *((u16 *)&memmap[0x02]), (int) sizeof(memmap),
14565+ *((u32 *)&memmap[0x04]),
14566+ *((u32 *)&memmap[0x08]),
14567+ *((u32 *)&memmap[0x0C]),
14568+ *((u32 *)&memmap[0x10]),
14569+ *((u32 *)&memmap[0x14]),
14570+ *((u32 *)&memmap[0x18]),
14571+ *((u32 *)&memmap[0x1C]),
14572+ *((u32 *)&memmap[0x20]),
14573+ *((u32 *)&memmap[0x24]),
14574+ *((u32 *)&memmap[0x28]),
14575+ *((u32 *)&memmap[0x2C]),
14576+ *((u32 *)&memmap[0x30]),
14577+ adev->iobase,
14578+ adev->iobase2);
14579+
14580+ /* dump Acx111 Rx Config */
14581+ printk("dump rx config:\n"
14582+ "data read: %d, struct size: %d\n"
14583+ "rx config: %X\n"
14584+ "rx filter config: %X\n",
14585+ *((u16 *)&rxconfig[0x02]), (int) sizeof(rxconfig),
14586+ *((u16 *)&rxconfig[0x04]),
14587+ *((u16 *)&rxconfig[0x06]));
14588+
14589+ /* dump Acx111 fcs error */
14590+ printk("dump fcserror:\n"
14591+ "data read: %d, struct size: %d\n"
14592+ "fcserrors: %X\n",
14593+ *((u16 *)&fcserror[0x02]), (int) sizeof(fcserror),
14594+ *((u32 *)&fcserror[0x04]));
14595+
14596+ /* dump Acx111 rate fallback */
14597+ printk("dump rate fallback:\n"
14598+ "data read: %d, struct size: %d\n"
14599+ "ratefallback: %X\n",
14600+ *((u16 *)&ratefallback[0x02]), (int) sizeof(ratefallback),
14601+ *((u8 *)&ratefallback[0x04]));
14602+
14603+ /* protect against IRQ */
14604+ acx_lock(adev, flags);
14605+
14606+ /* dump acx111 internal rx descriptor ring buffer */
14607+ rxdesc = adev->rxdesc_start;
14608+
14609+ /* loop over complete receive pool */
14610+ if (rxdesc) for (i = 0; i < RX_CNT; i++) {
14611+ printk("\ndump internal rxdesc %d:\n"
14612+ "mem pos %p\n"
14613+ "next 0x%X\n"
14614+ "acx mem pointer (dynamic) 0x%X\n"
14615+ "CTL (dynamic) 0x%X\n"
14616+ "Rate (dynamic) 0x%X\n"
14617+ "RxStatus (dynamic) 0x%X\n"
14618+ "Mod/Pre (dynamic) 0x%X\n",
14619+ i,
14620+ rxdesc,
14621+ acx2cpu(rxdesc->pNextDesc),
14622+ acx2cpu(rxdesc->ACXMemPtr),
14623+ rxdesc->Ctl_8,
14624+ rxdesc->rate,
14625+ rxdesc->error,
14626+ rxdesc->SNR);
14627+ rxdesc++;
14628+ }
14629+
14630+ /* dump host rx descriptor ring buffer */
14631+
14632+ rxhostdesc = adev->rxhostdesc_start;
14633+
14634+ /* loop over complete receive pool */
14635+ if (rxhostdesc) for (i = 0; i < RX_CNT; i++) {
14636+ printk("\ndump host rxdesc %d:\n"
14637+ "mem pos %p\n"
14638+ "buffer mem pos 0x%X\n"
14639+ "buffer mem offset 0x%X\n"
14640+ "CTL 0x%X\n"
14641+ "Length 0x%X\n"
14642+ "next 0x%X\n"
14643+ "Status 0x%X\n",
14644+ i,
14645+ rxhostdesc,
14646+ acx2cpu(rxhostdesc->data_phy),
14647+ rxhostdesc->data_offset,
14648+ le16_to_cpu(rxhostdesc->Ctl_16),
14649+ le16_to_cpu(rxhostdesc->length),
14650+ acx2cpu(rxhostdesc->desc_phy_next),
14651+ rxhostdesc->Status);
14652+ rxhostdesc++;
14653+ }
14654+
14655+ /* dump acx111 internal tx descriptor ring buffer */
14656+ txdesc = adev->txdesc_start;
14657+
14658+ /* loop over complete transmit pool */
14659+ if (txdesc) for (i = 0; i < TX_CNT; i++) {
14660+ printk("\ndump internal txdesc %d:\n"
14661+ "size 0x%X\n"
14662+ "mem pos %p\n"
14663+ "next 0x%X\n"
14664+ "acx mem pointer (dynamic) 0x%X\n"
14665+ "host mem pointer (dynamic) 0x%X\n"
14666+ "length (dynamic) 0x%X\n"
14667+ "CTL (dynamic) 0x%X\n"
14668+ "CTL2 (dynamic) 0x%X\n"
14669+ "Status (dynamic) 0x%X\n"
14670+ "Rate (dynamic) 0x%X\n",
14671+ i,
14672+ (int) sizeof(struct txdesc),
14673+ txdesc,
14674+ acx2cpu(txdesc->pNextDesc),
14675+ acx2cpu(txdesc->AcxMemPtr),
14676+ acx2cpu(txdesc->HostMemPtr),
14677+ le16_to_cpu(txdesc->total_length),
14678+ txdesc->Ctl_8,
14679+ txdesc->Ctl2_8, txdesc->error,
14680+ txdesc->u.r1.rate);
14681+ txdesc = advance_txdesc(adev, txdesc, 1);
14682+ }
14683+
14684+ /* dump host tx descriptor ring buffer */
14685+
14686+ txhostdesc = adev->txhostdesc_start;
14687+
14688+ /* loop over complete host send pool */
14689+ if (txhostdesc) for (i = 0; i < TX_CNT * 2; i++) {
14690+ printk("\ndump host txdesc %d:\n"
14691+ "mem pos %p\n"
14692+ "buffer mem pos 0x%X\n"
14693+ "buffer mem offset 0x%X\n"
14694+ "CTL 0x%X\n"
14695+ "Length 0x%X\n"
14696+ "next 0x%X\n"
14697+ "Status 0x%X\n",
14698+ i,
14699+ txhostdesc,
14700+ acx2cpu(txhostdesc->data_phy),
14701+ txhostdesc->data_offset,
14702+ le16_to_cpu(txhostdesc->Ctl_16),
14703+ le16_to_cpu(txhostdesc->length),
14704+ acx2cpu(txhostdesc->desc_phy_next),
14705+ le32_to_cpu(txhostdesc->Status));
14706+ txhostdesc++;
14707+ }
14708+
14709+ /* write_reg16(adev, 0xb4, 0x4); */
14710+
14711+ acx_unlock(adev, flags);
14712+end_ok:
14713+
14714+ acx_sem_unlock(adev);
14715+#endif /* ACX_DEBUG */
14716+ return OK;
14717+}
14718+
14719+
14720+/***********************************************************************
14721+*/
14722+int
14723+acx100mem_ioctl_set_phy_amp_bias(
14724+ struct net_device *ndev,
14725+ struct iw_request_info *info,
14726+ struct iw_param *vwrq,
14727+ char *extra)
14728+{
14729+ acx_device_t *adev = ndev2adev(ndev);
14730+ unsigned long flags;
14731+ u16 gpio_old;
14732+
14733+ if (!IS_ACX100(adev)) {
14734+ /* WARNING!!!
14735+ * Removing this check *might* damage
14736+ * hardware, since we're tweaking GPIOs here after all!!!
14737+ * You've been warned...
14738+ * WARNING!!! */
14739+ printk("acx: sorry, setting bias level for non-acx100 "
14740+ "is not supported yet\n");
14741+ return OK;
14742+ }
14743+
14744+ if (*extra > 7) {
14745+ printk("acx: invalid bias parameter, range is 0-7\n");
14746+ return -EINVAL;
14747+ }
14748+
14749+ acx_sem_lock(adev);
14750+
14751+ /* Need to lock accesses to [IO_ACX_GPIO_OUT]:
14752+ * IRQ handler uses it to update LED */
14753+ acx_lock(adev, flags);
14754+ gpio_old = read_reg16(adev, IO_ACX_GPIO_OUT);
14755+ write_reg16(adev, IO_ACX_GPIO_OUT, (gpio_old & 0xf8ff) | ((u16)*extra << 8));
14756+ acx_unlock(adev, flags);
14757+
14758+ log(L_DEBUG, "gpio_old: 0x%04X\n", gpio_old);
14759+ printk("%s: PHY power amplifier bias: old:%d, new:%d\n",
14760+ ndev->name,
14761+ (gpio_old & 0x0700) >> 8, (unsigned char)*extra);
14762+
14763+ acx_sem_unlock(adev);
14764+
14765+ return OK;
14766+}
14767+
14768+/***************************************************************
14769+** acxmem_l_alloc_tx
14770+** Actually returns a txdesc_t* ptr
14771+**
14772+** FIXME: in case of fragments, should allocate multiple descrs
14773+** after figuring out how many we need and whether we still have
14774+** sufficiently many.
14775+*/
14776+tx_t*
14777+acxmem_l_alloc_tx(acx_device_t *adev)
14778+{
14779+ struct txdesc *txdesc;
14780+ unsigned head;
14781+ u8 ctl8;
14782+ static int txattempts = 0;
14783+
14784+ FN_ENTER;
14785+
14786+ if (unlikely(!adev->tx_free)) {
14787+ printk("acx: BUG: no free txdesc left\n");
14788+ /*
14789+ * Probably the ACX ignored a transmit attempt and now there's a packet
14790+ * sitting in the queue we think should be transmitting but the ACX doesn't
14791+ * know about.
14792+ * On the first pass, send the ACX a TxProc interrupt to try moving
14793+ * things along, and if that doesn't work (ie, we get called again) completely
14794+ * flush the transmit queue.
14795+ */
14796+ if (txattempts < 10) {
14797+ txattempts++;
14798+ printk ("acx: trying to wake up ACX\n");
14799+ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_TXPRC);
14800+ write_flush(adev); }
14801+ else {
14802+ txattempts = 0;
14803+ printk ("acx: flushing transmit queue.\n");
14804+ acxmem_l_clean_txdesc_emergency (adev);
14805+ }
14806+ txdesc = NULL;
14807+ goto end;
14808+ }
14809+
14810+ /*
14811+ * Make a quick check to see if there is transmit buffer space on
14812+ * the ACX. This can't guarantee there is enough space for the packet
14813+ * since we don't yet know how big it is, but it will prevent at least some
14814+ * annoyances.
14815+ */
14816+ if (!adev->acx_txbuf_blocks_free) {
14817+ txdesc = NULL;
14818+ goto end;
14819+ }
14820+
14821+ head = adev->tx_head;
14822+ /*
14823+ * txdesc points to ACX memory
14824+ */
14825+ txdesc = get_txdesc(adev, head);
14826+ ctl8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8));
14827+
14828+ /*
14829+ * If we don't own the buffer (HOSTOWN) it is certainly not free; however,
14830+ * we may have previously thought we had enough memory to send
14831+ * a packet, allocated the buffer then gave up when we found not enough
14832+ * transmit buffer space on the ACX. In that case, HOSTOWN and
14833+ * ACXDONE will both be set.
14834+ */
14835+ if (unlikely(DESC_CTL_HOSTOWN != (ctl8 & DESC_CTL_HOSTOWN))) {
14836+ /* whoops, descr at current index is not free, so probably
14837+ * ring buffer already full */
14838+ printk("acx: BUG: tx_head:%d Ctl8:0x%02X - failed to find "
14839+ "free txdesc\n", head, ctl8);
14840+ txdesc = NULL;
14841+ goto end;
14842+ }
14843+
14844+ /* Needed in case txdesc won't be eventually submitted for tx */
14845+ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), DESC_CTL_ACXDONE_HOSTOWN);
14846+
14847+ adev->tx_free--;
14848+ log(L_BUFT, "tx: got desc %u, %u remain\n",
14849+ head, adev->tx_free);
14850+ /* Keep a few free descs between head and tail of tx ring.
14851+ ** It is not absolutely needed, just feels safer */
14852+ if (adev->tx_free < TX_STOP_QUEUE) {
14853+ log(L_BUF, "stop queue (%u tx desc left)\n",
14854+ adev->tx_free);
14855+ acx_stop_queue(adev->ndev, NULL);
14856+ }
14857+
14858+ /* returning current descriptor, so advance to next free one */
14859+ adev->tx_head = (head + 1) % TX_CNT;
14860+end:
14861+ FN_EXIT0;
14862+
14863+ return (tx_t*)txdesc;
14864+}
14865+
14866+
14867+/***************************************************************
14868+** acxmem_l_dealloc_tx
14869+** Clears out a previously allocatedvoid acxmem_l_dealloc_tx(tx_t *tx_opaque);
14870+ transmit descriptor. The ACX
14871+** can get confused if we skip transmit descriptors in the queue,
14872+** so when we don't need a descriptor return it to its original
14873+** state and move the queue head pointer back.
14874+**
14875+*/
14876+void
14877+acxmem_l_dealloc_tx(acx_device_t *adev, tx_t *tx_opaque)
14878+{
14879+ /*
14880+ * txdesc is the address of the descriptor on the ACX.
14881+ */
14882+ txdesc_t *txdesc = (txdesc_t*)tx_opaque;
14883+ txdesc_t tmptxdesc;
14884+ int index;
14885+
14886+ memset (&tmptxdesc, 0, sizeof(tmptxdesc));
14887+ tmptxdesc.Ctl_8 = DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG;
14888+ tmptxdesc.u.r1.rate = 0x0a;
14889+
14890+ /*
14891+ * Clear out all of the transmit descriptor except for the next pointer
14892+ */
14893+ copy_to_slavemem (adev, (u32) &(txdesc->HostMemPtr),
14894+ (u8 *) &(tmptxdesc.HostMemPtr),
14895+ sizeof (tmptxdesc) - sizeof(tmptxdesc.pNextDesc));
14896+
14897+ /*
14898+ * This is only called immediately after we've allocated, so we should
14899+ * be able to set the head back to this descriptor.
14900+ */
14901+ index = ((u8*) txdesc - (u8*)adev->txdesc_start) / adev->txdesc_size;
14902+ printk ("acx_dealloc: moving head from %d to %d\n", adev->tx_head, index);
14903+ adev->tx_head = index;
14904+}
14905+
14906+
14907+/***********************************************************************
14908+*/
14909+void*
14910+acxmem_l_get_txbuf(acx_device_t *adev, tx_t* tx_opaque)
14911+{
14912+ return get_txhostdesc(adev, (txdesc_t*)tx_opaque)->data;
14913+}
14914+
14915+
14916+/***********************************************************************
14917+** acxmem_l_tx_data
14918+**
14919+** Can be called from IRQ (rx -> (AP bridging or mgmt response) -> tx).
14920+** Can be called from acx_i_start_xmit (data frames from net core).
14921+**
14922+** FIXME: in case of fragments, should loop over the number of
14923+** pre-allocated tx descrs, properly setting up transfer data and
14924+** CTL_xxx flags according to fragment number.
14925+*/
14926+void
14927+acxmem_update_queue_indicator (acx_device_t *adev, int txqueue)
14928+{
14929+#ifdef USING_MORE_THAN_ONE_TRANSMIT_QUEUE
14930+ u32 indicator;
14931+ unsigned long flags;
14932+ int count;
14933+
14934+ /*
14935+ * Can't handle an interrupt while we're fiddling with the ACX's lock,
14936+ * according to TI. The ACX is supposed to hold fw_lock for at most
14937+ * 500ns.
14938+ */
14939+ local_irq_save (flags);
14940+
14941+ /*
14942+ * Wait for ACX to release the lock (at most 500ns).
14943+ */
14944+ count = 0;
14945+ while (read_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->fw_lock))
14946+ && (count++ < 50)) {
14947+ ndelay (10);
14948+ }
14949+ if (count < 50) {
14950+
14951+ /*
14952+ * Take out the host lock - anything non-zero will work, so don't worry about
14953+ * be/le
14954+ */
14955+ write_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->host_lock), 1);
14956+
14957+ /*
14958+ * Avoid a race condition
14959+ */
14960+ count = 0;
14961+ while (read_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->fw_lock))
14962+ && (count++ < 50)) {
14963+ ndelay (10);
14964+ }
14965+
14966+ if (count < 50) {
14967+ /*
14968+ * Mark the queue active
14969+ */
14970+ indicator = read_slavemem32 (adev, (u32) &(adev->acx_queue_indicator->indicator));
14971+ indicator |= cpu_to_le32 (1 << txqueue);
14972+ write_slavemem32 (adev, (u32) &(adev->acx_queue_indicator->indicator), indicator);
14973+ }
14974+
14975+ /*
14976+ * Release the host lock
14977+ */
14978+ write_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->host_lock), 0);
14979+
14980+ }
14981+
14982+ /*
14983+ * Restore interrupts
14984+ */
14985+ local_irq_restore (flags);
14986+#endif
14987+}
14988+
14989+void
14990+acxmem_l_tx_data(acx_device_t *adev, tx_t* tx_opaque, int len)
14991+{
14992+ /*
14993+ * txdesc is the address on the ACX
14994+ */
14995+ txdesc_t *txdesc = (txdesc_t*)tx_opaque;
14996+ txhostdesc_t *hostdesc1, *hostdesc2;
14997+ client_t *clt;
14998+ u16 rate_cur;
14999+ u8 Ctl_8, Ctl2_8;
15000+ u32 addr;
15001+
15002+ FN_ENTER;
15003+ /* fw doesn't tx such packets anyhow */
15004+ if (unlikely(len < WLAN_HDR_A3_LEN))
15005+ goto end;
15006+
15007+ hostdesc1 = get_txhostdesc(adev, txdesc);
15008+ /* modify flag status in separate variable to be able to write it back
15009+ * in one big swoop later (also in order to have less device memory
15010+ * accesses) */
15011+ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8));
15012+ Ctl2_8 = 0; /* really need to init it to 0, not txdesc->Ctl2_8, it seems */
15013+
15014+ hostdesc2 = hostdesc1 + 1;
15015+
15016+ /* DON'T simply set Ctl field to 0 here globally,
15017+ * it needs to maintain a consistent flag status (those are state flags!!),
15018+ * otherwise it may lead to severe disruption. Only set or reset particular
15019+ * flags at the exact moment this is needed... */
15020+
15021+ /* let chip do RTS/CTS handshaking before sending
15022+ * in case packet size exceeds threshold */
15023+ if (len > adev->rts_threshold)
15024+ SET_BIT(Ctl2_8, DESC_CTL2_RTS);
15025+ else
15026+ CLEAR_BIT(Ctl2_8, DESC_CTL2_RTS);
15027+
15028+ switch (adev->mode) {
15029+ case ACX_MODE_0_ADHOC:
15030+ case ACX_MODE_3_AP:
15031+ clt = acx_l_sta_list_get(adev, ((wlan_hdr_t*)hostdesc1->data)->a1);
15032+ break;
15033+ case ACX_MODE_2_STA:
15034+ clt = adev->ap_client;
15035+ break;
15036+#if 0
15037+/* testing was done on acx111: */
15038+ case ACX_MODE_MONITOR:
15039+ SET_BIT(Ctl2_8, 0
15040+/* sends CTS to self before packet */
15041+ + DESC_CTL2_SEQ /* don't increase sequence field */
15042+/* not working (looks like good fcs is still added) */
15043+ + DESC_CTL2_FCS /* don't add the FCS */
15044+/* not tested */
15045+ + DESC_CTL2_MORE_FRAG
15046+/* not tested */
15047+ + DESC_CTL2_RETRY /* don't increase retry field */
15048+/* not tested */
15049+ + DESC_CTL2_POWER /* don't increase power mgmt. field */
15050+/* no effect */
15051+ + DESC_CTL2_WEP /* encrypt this frame */
15052+/* not tested */
15053+ + DESC_CTL2_DUR /* don't increase duration field */
15054+ );
15055+ /* fallthrough */
15056+#endif
15057+ default: /* ACX_MODE_OFF, ACX_MODE_MONITOR */
15058+ clt = NULL;
15059+ break;
15060+ }
15061+
15062+ rate_cur = clt ? clt->rate_cur : adev->rate_bcast;
15063+ if (unlikely(!rate_cur)) {
15064+ printk("acx: driver bug! bad ratemask\n");
15065+ goto end;
15066+ }
15067+
15068+ /* used in tx cleanup routine for auto rate and accounting: */
15069+ put_txcr(adev, txdesc, clt, rate_cur);
15070+
15071+ write_slavemem16 (adev, (u32) &(txdesc->total_length), cpu_to_le16(len));
15072+ hostdesc2->length = cpu_to_le16(len - WLAN_HDR_A3_LEN);
15073+ if (IS_ACX111(adev)) {
15074+ /* note that if !txdesc->do_auto, txrate->cur
15075+ ** has only one nonzero bit */
15076+ txdesc->u.r2.rate111 = cpu_to_le16(
15077+ rate_cur
15078+ /* WARNING: I was never able to make it work with prism54 AP.
15079+ ** It was falling down to 1Mbit where shortpre is not applicable,
15080+ ** and not working at all at "5,11 basic rates only" setting.
15081+ ** I even didn't see tx packets in radio packet capture.
15082+ ** Disabled for now --vda */
15083+ /*| ((clt->shortpre && clt->cur!=RATE111_1) ? RATE111_SHORTPRE : 0) */
15084+ );
15085+#ifdef TODO_FIGURE_OUT_WHEN_TO_SET_THIS
15086+ /* should add this to rate111 above as necessary */
15087+ | (clt->pbcc511 ? RATE111_PBCC511 : 0)
15088+#endif
15089+ hostdesc1->length = cpu_to_le16(len);
15090+ } else { /* ACX100 */
15091+ u8 rate_100 = clt ? clt->rate_100 : adev->rate_bcast100;
15092+ write_slavemem8 (adev, (u32) &(txdesc->u.r1.rate), rate_100);
15093+#ifdef TODO_FIGURE_OUT_WHEN_TO_SET_THIS
15094+ if (clt->pbcc511) {
15095+ if (n == RATE100_5 || n == RATE100_11)
15096+ n |= RATE100_PBCC511;
15097+ }
15098+
15099+ if (clt->shortpre && (clt->cur != RATE111_1))
15100+ SET_BIT(Ctl_8, DESC_CTL_SHORT_PREAMBLE); /* set Short Preamble */
15101+#endif
15102+ /* set autodma and reclaim and 1st mpdu */
15103+ SET_BIT(Ctl_8, DESC_CTL_FIRSTFRAG);
15104+
15105+#if ACX_FRAGMENTATION
15106+ /* SET_BIT(Ctl2_8, DESC_CTL2_MORE_FRAG); cannot set it unconditionally, needs to be set for all non-last fragments */
15107+#endif
15108+ hostdesc1->length = cpu_to_le16(WLAN_HDR_A3_LEN);
15109+
15110+ /*
15111+ * Since we're not using autodma copy the packet data to the acx now.
15112+ * Even host descriptors point to the packet header, and the odd indexed
15113+ * descriptor following points to the packet data.
15114+ *
15115+ * The first step is to find free memory in the ACX transmit buffers.
15116+ * They don't necessarily map one to one with the transmit queue entries,
15117+ * so search through them starting just after the last one used.
15118+ */
15119+ addr = allocate_acx_txbuf_space (adev, len);
15120+ if (addr) {
15121+ chaincopy_to_slavemem (adev, addr, hostdesc1->data, len);
15122+ }
15123+ else {
15124+ /*
15125+ * Bummer. We thought we might have enough room in the transmit
15126+ * buffers to send this packet, but it turns out we don't. alloc_tx
15127+ * has already marked this transmit descriptor as HOSTOWN and ACXDONE,
15128+ * which means the ACX will hang when it gets to this descriptor unless
15129+ * we do something about it. Having a bubble in the transmit queue just
15130+ * doesn't seem to work, so we have to reset this transmit queue entry's
15131+ * state to its original value and back up our head pointer to point
15132+ * back to this entry.
15133+ */
15134+ hostdesc1->length = 0;
15135+ hostdesc2->length = 0;
15136+ write_slavemem16 (adev, (u32) &(txdesc->total_length), 0);
15137+ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG);
15138+ adev->tx_head = ((u8*) txdesc - (u8*) adev->txdesc_start) / adev->txdesc_size;
15139+ goto end;
15140+ }
15141+ /*
15142+ * Tell the ACX where the packet is.
15143+ */
15144+ write_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr), addr);
15145+
15146+ }
15147+ /* don't need to clean ack/rts statistics here, already
15148+ * done on descr cleanup */
15149+
15150+ /* clears HOSTOWN and ACXDONE bits, thus telling that the descriptors
15151+ * are now owned by the acx100; do this as LAST operation */
15152+ CLEAR_BIT(Ctl_8, DESC_CTL_ACXDONE_HOSTOWN);
15153+ /* flush writes before we release hostdesc to the adapter here */
15154+ //wmb();
15155+
15156+ /* write back modified flags */
15157+ /*
15158+ * At this point Ctl_8 should just be FIRSTFRAG
15159+ */
15160+ write_slavemem8 (adev, (u32) &(txdesc->Ctl2_8),Ctl2_8);
15161+ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), Ctl_8);
15162+ /* unused: txdesc->tx_time = cpu_to_le32(jiffies); */
15163+
15164+ /*
15165+ * Update the queue indicator to say there's data on the first queue.
15166+ */
15167+ acxmem_update_queue_indicator (adev, 0);
15168+
15169+ /* flush writes before we tell the adapter that it's its turn now */
15170+ mmiowb();
15171+ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_TXPRC);
15172+ write_flush(adev);
15173+
15174+ /* log the packet content AFTER sending it,
15175+ * in order to not delay sending any further than absolutely needed
15176+ * Do separate logs for acx100/111 to have human-readable rates */
15177+ if (unlikely(acx_debug & (L_XFER|L_DATA))) {
15178+ u16 fc = ((wlan_hdr_t*)hostdesc1->data)->fc;
15179+ if (IS_ACX111(adev))
15180+ printk("tx: pkt (%s): len %d "
15181+ "rate %04X%s status %u\n",
15182+ acx_get_packet_type_string(le16_to_cpu(fc)), len,
15183+ le16_to_cpu(txdesc->u.r2.rate111),
15184+ (le16_to_cpu(txdesc->u.r2.rate111) & RATE111_SHORTPRE) ? "(SPr)" : "",
15185+ adev->status);
15186+ else
15187+ printk("tx: pkt (%s): len %d rate %03u%s status %u\n",
15188+ acx_get_packet_type_string(fc), len,
15189+ read_slavemem8 (adev, (u32) &(txdesc->u.r1.rate)),
15190+ (Ctl_8 & DESC_CTL_SHORT_PREAMBLE) ? "(SPr)" : "",
15191+ adev->status);
15192+
15193+ if (acx_debug & L_DATA) {
15194+ printk("tx: 802.11 [%d]: ", len);
15195+ acx_dump_bytes(hostdesc1->data, len);
15196+ }
15197+ }
15198+end:
15199+ FN_EXIT0;
15200+}
15201+
15202+
15203+/***********************************************************************
15204+** acxmem_l_clean_txdesc
15205+**
15206+** This function resets the txdescs' status when the ACX100
15207+** signals the TX done IRQ (txdescs have been processed), starting with
15208+** the pool index of the descriptor which we would use next,
15209+** in order to make sure that we can be as fast as possible
15210+** in filling new txdescs.
15211+** Everytime we get called we know where the next packet to be cleaned is.
15212+*/
15213+
15214+#if !ACX_DEBUG
15215+static inline void log_txbuffer(const acx_device_t *adev) {}
15216+#else
15217+static void
15218+log_txbuffer(acx_device_t *adev)
15219+{
15220+ txdesc_t *txdesc;
15221+ int i;
15222+ u8 Ctl_8;
15223+
15224+ /* no FN_ENTER here, we don't want that */
15225+ /* no locks here, since it's entirely non-critical code */
15226+ txdesc = adev->txdesc_start;
15227+ if (unlikely(!txdesc)) return;
15228+ printk("tx: desc->Ctl8's:");
15229+ for (i = 0; i < TX_CNT; i++) {
15230+ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8));
15231+ printk(" %02X", Ctl_8);
15232+ txdesc = advance_txdesc(adev, txdesc, 1);
15233+ }
15234+ printk("\n");
15235+}
15236+#endif
15237+
15238+
15239+static void
15240+handle_tx_error(acx_device_t *adev, u8 error, unsigned int finger)
15241+{
15242+ const char *err = "unknown error";
15243+
15244+ /* hmm, should we handle this as a mask
15245+ * of *several* bits?
15246+ * For now I think only caring about
15247+ * individual bits is ok... */
15248+ switch (error) {
15249+ case 0x01:
15250+ err = "no Tx due to error in other fragment";
15251+ adev->wstats.discard.fragment++;
15252+ break;
15253+ case 0x02:
15254+ err = "Tx aborted";
15255+ adev->stats.tx_aborted_errors++;
15256+ break;
15257+ case 0x04:
15258+ err = "Tx desc wrong parameters";
15259+ adev->wstats.discard.misc++;
15260+ break;
15261+ case 0x08:
15262+ err = "WEP key not found";
15263+ adev->wstats.discard.misc++;
15264+ break;
15265+ case 0x10:
15266+ err = "MSDU lifetime timeout? - try changing "
15267+ "'iwconfig retry lifetime XXX'";
15268+ adev->wstats.discard.misc++;
15269+ break;
15270+ case 0x20:
15271+ err = "excessive Tx retries due to either distance "
15272+ "too high or unable to Tx or Tx frame error - "
15273+ "try changing 'iwconfig txpower XXX' or "
15274+ "'sens'itivity or 'retry'";
15275+ adev->wstats.discard.retries++;
15276+ /* Tx error 0x20 also seems to occur on
15277+ * overheating, so I'm not sure whether we
15278+ * actually want to do aggressive radio recalibration,
15279+ * since people maybe won't notice then that their hardware
15280+ * is slowly getting cooked...
15281+ * Or is it still a safe long distance from utter
15282+ * radio non-functionality despite many radio recalibs
15283+ * to final destructive overheating of the hardware?
15284+ * In this case we really should do recalib here...
15285+ * I guess the only way to find out is to do a
15286+ * potentially fatal self-experiment :-\
15287+ * Or maybe only recalib in case we're using Tx
15288+ * rate auto (on errors switching to lower speed
15289+ * --> less heat?) or 802.11 power save mode?
15290+ *
15291+ * ok, just do it. */
15292+ if (++adev->retry_errors_msg_ratelimit % 4 == 0) {
15293+ if (adev->retry_errors_msg_ratelimit <= 20) {
15294+ printk("%s: several excessive Tx "
15295+ "retry errors occurred, attempting "
15296+ "to recalibrate radio. Radio "
15297+ "drift might be caused by increasing "
15298+ "card temperature, please check the card "
15299+ "before it's too late!\n",
15300+ adev->ndev->name);
15301+ if (adev->retry_errors_msg_ratelimit == 20)
15302+ printk("disabling above message\n");
15303+ }
15304+
15305+ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_RADIO_RECALIB);
15306+ }
15307+ break;
15308+ case 0x40:
15309+ err = "Tx buffer overflow";
15310+ adev->stats.tx_fifo_errors++;
15311+ break;
15312+ case 0x80:
15313+ err = "DMA error";
15314+ adev->wstats.discard.misc++;
15315+ break;
15316+ }
15317+ adev->stats.tx_errors++;
15318+ if (adev->stats.tx_errors <= 20)
15319+ printk("%s: tx error 0x%02X, buf %02u! (%s)\n",
15320+ adev->ndev->name, error, finger, err);
15321+ else
15322+ printk("%s: tx error 0x%02X, buf %02u!\n",
15323+ adev->ndev->name, error, finger);
15324+}
15325+
15326+
15327+unsigned int
15328+acxmem_l_clean_txdesc(acx_device_t *adev)
15329+{
15330+ txdesc_t *txdesc;
15331+ unsigned finger;
15332+ int num_cleaned;
15333+ u16 r111;
15334+ u8 error, ack_failures, rts_failures, rts_ok, r100, Ctl_8;
15335+ u32 acxmem;
15336+ txdesc_t tmptxdesc;
15337+
15338+ FN_ENTER;
15339+
15340+ /*
15341+ * Set up a template descriptor for re-initialization. The only
15342+ * things that get set are Ctl_8 and the rate, and the rate defaults
15343+ * to 1Mbps.
15344+ */
15345+ memset (&tmptxdesc, 0, sizeof (tmptxdesc));
15346+ tmptxdesc.Ctl_8 = DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG;
15347+ tmptxdesc.u.r1.rate = 0x0a;
15348+
15349+ if (unlikely(acx_debug & L_DEBUG))
15350+ log_txbuffer(adev);
15351+
15352+ log(L_BUFT, "tx: cleaning up bufs from %u\n", adev->tx_tail);
15353+
15354+ /* We know first descr which is not free yet. We advance it as far
15355+ ** as we see correct bits set in following descs (if next desc
15356+ ** is NOT free, we shouldn't advance at all). We know that in
15357+ ** front of tx_tail may be "holes" with isolated free descs.
15358+ ** We will catch up when all intermediate descs will be freed also */
15359+
15360+ finger = adev->tx_tail;
15361+ num_cleaned = 0;
15362+ while (likely(finger != adev->tx_head)) {
15363+ txdesc = get_txdesc(adev, finger);
15364+
15365+ /* If we allocated txdesc on tx path but then decided
15366+ ** to NOT use it, then it will be left as a free "bubble"
15367+ ** in the "allocated for tx" part of the ring.
15368+ ** We may meet it on the next ring pass here. */
15369+
15370+ /* stop if not marked as "tx finished" and "host owned" */
15371+ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8));
15372+ if ((Ctl_8 & DESC_CTL_ACXDONE_HOSTOWN)
15373+ != DESC_CTL_ACXDONE_HOSTOWN) {
15374+ if (unlikely(!num_cleaned)) { /* maybe remove completely */
15375+ log(L_BUFT, "clean_txdesc: tail isn't free. "
15376+ "tail:%d head:%d\n",
15377+ adev->tx_tail, adev->tx_head);
15378+ }
15379+ break;
15380+ }
15381+
15382+ /* remember desc values... */
15383+ error = read_slavemem8 (adev, (u32) &(txdesc->error));
15384+ ack_failures = read_slavemem8 (adev, (u32) &(txdesc->ack_failures));
15385+ rts_failures = read_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_failures));
15386+ rts_ok = read_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_ok));
15387+ r100 = read_slavemem8 (adev, (u32) &(txdesc->u.r1.rate));
15388+ r111 = le16_to_cpu(read_slavemem16 (adev, (u32) &(txdesc->u.r2.rate111)));
15389+
15390+ /* need to check for certain error conditions before we
15391+ * clean the descriptor: we still need valid descr data here */
15392+ if (unlikely(0x30 & error)) {
15393+ /* only send IWEVTXDROP in case of retry or lifetime exceeded;
15394+ * all other errors mean we screwed up locally */
15395+ union iwreq_data wrqu;
15396+ wlan_hdr_t *hdr;
15397+ txhostdesc_t *hostdesc;
15398+
15399+ hostdesc = get_txhostdesc(adev, txdesc);
15400+ hdr = (wlan_hdr_t *)hostdesc->data;
15401+ MAC_COPY(wrqu.addr.sa_data, hdr->a1);
15402+ wireless_send_event(adev->ndev, IWEVTXDROP, &wrqu, NULL);
15403+ }
15404+
15405+ /*
15406+ * Free up the transmit data buffers
15407+ */
15408+ acxmem = read_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr));
15409+ if (acxmem) {
15410+ reclaim_acx_txbuf_space (adev, acxmem);
15411+ }
15412+
15413+ /* ...and free the desc by clearing all the fields
15414+ except the next pointer */
15415+ copy_to_slavemem (adev,
15416+ (u32) &(txdesc->HostMemPtr),
15417+ (u8 *) &(tmptxdesc.HostMemPtr),
15418+ sizeof (tmptxdesc) - sizeof(tmptxdesc.pNextDesc)
15419+ );
15420+
15421+ adev->tx_free++;
15422+ num_cleaned++;
15423+
15424+ if ((adev->tx_free >= TX_START_QUEUE)
15425+ && (adev->status == ACX_STATUS_4_ASSOCIATED)
15426+ && (acx_queue_stopped(adev->ndev))
15427+ ) {
15428+ log(L_BUF, "tx: wake queue (avail. Tx desc %u)\n",
15429+ adev->tx_free);
15430+ acx_wake_queue(adev->ndev, NULL);
15431+ }
15432+
15433+ /* do error checking, rate handling and logging
15434+ * AFTER having done the work, it's faster */
15435+
15436+ /* do rate handling */
15437+ if (adev->rate_auto) {
15438+ struct client *clt = get_txc(adev, txdesc);
15439+ if (clt) {
15440+ u16 cur = get_txr(adev, txdesc);
15441+ if (clt->rate_cur == cur) {
15442+ acx_l_handle_txrate_auto(adev, clt,
15443+ cur, /* intended rate */
15444+ r100, r111, /* actually used rate */
15445+ (error & 0x30), /* was there an error? */
15446+ TX_CNT + TX_CLEAN_BACKLOG - adev->tx_free);
15447+ }
15448+ }
15449+ }
15450+
15451+ if (unlikely(error))
15452+ handle_tx_error(adev, error, finger);
15453+
15454+ if (IS_ACX111(adev))
15455+ log(L_BUFT, "tx: cleaned %u: !ACK=%u !RTS=%u RTS=%u r111=%04X\n",
15456+ finger, ack_failures, rts_failures, rts_ok, r111);
15457+ else
15458+ log(L_BUFT, "tx: cleaned %u: !ACK=%u !RTS=%u RTS=%u rate=%u\n",
15459+ finger, ack_failures, rts_failures, rts_ok, r100);
15460+
15461+ /* update pointer for descr to be cleaned next */
15462+ finger = (finger + 1) % TX_CNT;
15463+ }
15464+
15465+ /* remember last position */
15466+ adev->tx_tail = finger;
15467+/* end: */
15468+ FN_EXIT1(num_cleaned);
15469+ return num_cleaned;
15470+}
15471+
15472+/* clean *all* Tx descriptors, and regardless of their previous state.
15473+ * Used for brute-force reset handling. */
15474+void
15475+acxmem_l_clean_txdesc_emergency(acx_device_t *adev)
15476+{
15477+ txdesc_t *txdesc;
15478+ int i;
15479+ u32 acxmem;
15480+
15481+ FN_ENTER;
15482+
15483+ for (i = 0; i < TX_CNT; i++) {
15484+ txdesc = get_txdesc(adev, i);
15485+
15486+ /* free it */
15487+ write_slavemem8 (adev, (u32) &(txdesc->ack_failures), 0);
15488+ write_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_failures), 0);
15489+ write_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_ok), 0);
15490+ write_slavemem8 (adev, (u32) &(txdesc->error), 0);
15491+ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), DESC_CTL_HOSTOWN);
15492+
15493+ /*
15494+ * Clean up the memory allocated on the ACX for this transmit descriptor.
15495+ */
15496+ acxmem = read_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr));
15497+ if (acxmem) {
15498+ reclaim_acx_txbuf_space (adev, acxmem);
15499+ }
15500+
15501+ write_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr), 0);
15502+ }
15503+
15504+ adev->tx_free = TX_CNT;
15505+
15506+ FN_EXIT0;
15507+}
15508+
15509+
15510+/***********************************************************************
15511+** acxmem_s_create_tx_host_desc_queue
15512+*/
15513+
15514+static void*
15515+allocate(acx_device_t *adev, size_t size, dma_addr_t *phy, const char *msg)
15516+{
15517+ void *ptr;
15518+ ptr = kmalloc (size, GFP_KERNEL);
15519+ /*
15520+ * The ACX can't use the physical address, so we'll have to fake it
15521+ * later and it might be handy to have the virtual address.
15522+ */
15523+ *phy = (dma_addr_t) NULL;
15524+
15525+ if (ptr) {
15526+ log(L_DEBUG, "%s sz=%d adr=0x%p phy=0x%08llx\n",
15527+ msg, (int)size, ptr, (unsigned long long)*phy);
15528+ memset(ptr, 0, size);
15529+ return ptr;
15530+ }
15531+ printk(KERN_ERR "acx: %s allocation FAILED (%d bytes)\n",
15532+ msg, (int)size);
15533+ return NULL;
15534+}
15535+
15536+
15537+/*
15538+ * In the generic slave memory access mode, most of the stuff in
15539+ * the txhostdesc_t is unused. It's only here because the rest of
15540+ * the ACX driver expects it to be since the PCI version uses indirect
15541+ * host memory organization with DMA. Since we're not using DMA the
15542+ * only use we have for the host descriptors is to store the packets
15543+ * on the way out.
15544+ */
15545+static int
15546+acxmem_s_create_tx_host_desc_queue(acx_device_t *adev)
15547+{
15548+ txhostdesc_t *hostdesc;
15549+ u8 *txbuf;
15550+ int i;
15551+
15552+ FN_ENTER;
15553+
15554+ /* allocate TX buffer */
15555+ adev->txbuf_area_size = TX_CNT * WLAN_A4FR_MAXLEN_WEP_FCS;
15556+
15557+ adev->txbuf_start = allocate(adev, adev->txbuf_area_size,
15558+ &adev->txbuf_startphy, "txbuf_start");
15559+ if (!adev->txbuf_start)
15560+ goto fail;
15561+
15562+ /* allocate the TX host descriptor queue pool */
15563+ adev->txhostdesc_area_size = TX_CNT * 2*sizeof(*hostdesc);
15564+
15565+ adev->txhostdesc_start = allocate(adev, adev->txhostdesc_area_size,
15566+ &adev->txhostdesc_startphy, "txhostdesc_start");
15567+ if (!adev->txhostdesc_start)
15568+ goto fail;
15569+
15570+ /* check for proper alignment of TX host descriptor pool */
15571+ if ((long) adev->txhostdesc_start & 3) {
15572+ printk("acx: driver bug: dma alloc returns unaligned address\n");
15573+ goto fail;
15574+ }
15575+
15576+ hostdesc = adev->txhostdesc_start;
15577+ txbuf = adev->txbuf_start;
15578+
15579+#if 0
15580+/* Each tx buffer is accessed by hardware via
15581+** txdesc -> txhostdesc(s) -> txbuffer(s).
15582+** We use only one txhostdesc per txdesc, but it looks like
15583+** acx111 is buggy: it accesses second txhostdesc
15584+** (via hostdesc.desc_phy_next field) even if
15585+** txdesc->length == hostdesc->length and thus
15586+** entire packet was placed into first txhostdesc.
15587+** Due to this bug acx111 hangs unless second txhostdesc
15588+** has le16_to_cpu(hostdesc.length) = 3 (or larger)
15589+** Storing NULL into hostdesc.desc_phy_next
15590+** doesn't seem to help.
15591+**
15592+** Update: although it worked on Xterasys XN-2522g
15593+** with len=3 trick, WG311v2 is even more bogus, doesn't work.
15594+** Keeping this code (#ifdef'ed out) for documentational purposes.
15595+*/
15596+ for (i = 0; i < TX_CNT*2; i++) {
15597+ hostdesc_phy += sizeof(*hostdesc);
15598+ if (!(i & 1)) {
15599+ hostdesc->data_phy = cpu2acx(txbuf_phy);
15600+ /* hostdesc->data_offset = ... */
15601+ /* hostdesc->reserved = ... */
15602+ hostdesc->Ctl_16 = cpu_to_le16(DESC_CTL_HOSTOWN);
15603+ /* hostdesc->length = ... */
15604+ hostdesc->desc_phy_next = cpu2acx(hostdesc_phy);
15605+ hostdesc->pNext = ptr2acx(NULL);
15606+ /* hostdesc->Status = ... */
15607+ /* below: non-hardware fields */
15608+ hostdesc->data = txbuf;
15609+
15610+ txbuf += WLAN_A4FR_MAXLEN_WEP_FCS;
15611+ txbuf_phy += WLAN_A4FR_MAXLEN_WEP_FCS;
15612+ } else {
15613+ /* hostdesc->data_phy = ... */
15614+ /* hostdesc->data_offset = ... */
15615+ /* hostdesc->reserved = ... */
15616+ /* hostdesc->Ctl_16 = ... */
15617+ hostdesc->length = cpu_to_le16(3); /* bug workaround */
15618+ /* hostdesc->desc_phy_next = ... */
15619+ /* hostdesc->pNext = ... */
15620+ /* hostdesc->Status = ... */
15621+ /* below: non-hardware fields */
15622+ /* hostdesc->data = ... */
15623+ }
15624+ hostdesc++;
15625+ }
15626+#endif
15627+/* We initialize two hostdescs so that they point to adjacent
15628+** memory areas. Thus txbuf is really just a contiguous memory area */
15629+ for (i = 0; i < TX_CNT*2; i++) {
15630+ /* ->data is a non-hardware field: */
15631+ hostdesc->data = txbuf;
15632+
15633+ if (!(i & 1)) {
15634+ txbuf += WLAN_HDR_A3_LEN;
15635+ } else {
15636+ txbuf += WLAN_A4FR_MAXLEN_WEP_FCS - WLAN_HDR_A3_LEN;
15637+ }
15638+ hostdesc++;
15639+ }
15640+ hostdesc--;
15641+
15642+ FN_EXIT1(OK);
15643+ return OK;
15644+fail:
15645+ printk("acx: create_tx_host_desc_queue FAILED\n");
15646+ /* dealloc will be done by free function on error case */
15647+ FN_EXIT1(NOT_OK);
15648+ return NOT_OK;
15649+}
15650+
15651+
15652+/***************************************************************
15653+** acxmem_s_create_rx_host_desc_queue
15654+*/
15655+/* the whole size of a data buffer (header plus data body)
15656+ * plus 32 bytes safety offset at the end */
15657+#define RX_BUFFER_SIZE (sizeof(rxbuffer_t) + 32)
15658+
15659+static int
15660+acxmem_s_create_rx_host_desc_queue(acx_device_t *adev)
15661+{
15662+ rxhostdesc_t *hostdesc;
15663+ rxbuffer_t *rxbuf;
15664+ int i;
15665+
15666+ FN_ENTER;
15667+
15668+ /* allocate the RX host descriptor queue pool */
15669+ adev->rxhostdesc_area_size = RX_CNT * sizeof(*hostdesc);
15670+
15671+ adev->rxhostdesc_start = allocate(adev, adev->rxhostdesc_area_size,
15672+ &adev->rxhostdesc_startphy, "rxhostdesc_start");
15673+ if (!adev->rxhostdesc_start)
15674+ goto fail;
15675+
15676+ /* check for proper alignment of RX host descriptor pool */
15677+ if ((long) adev->rxhostdesc_start & 3) {
15678+ printk("acx: driver bug: dma alloc returns unaligned address\n");
15679+ goto fail;
15680+ }
15681+
15682+ /* allocate Rx buffer pool which will be used by the acx
15683+ * to store the whole content of the received frames in it */
15684+ adev->rxbuf_area_size = RX_CNT * RX_BUFFER_SIZE;
15685+
15686+ adev->rxbuf_start = allocate(adev, adev->rxbuf_area_size,
15687+ &adev->rxbuf_startphy, "rxbuf_start");
15688+ if (!adev->rxbuf_start)
15689+ goto fail;
15690+
15691+ rxbuf = adev->rxbuf_start;
15692+ hostdesc = adev->rxhostdesc_start;
15693+
15694+ /* don't make any popular C programming pointer arithmetic mistakes
15695+ * here, otherwise I'll kill you...
15696+ * (and don't dare asking me why I'm warning you about that...) */
15697+ for (i = 0; i < RX_CNT; i++) {
15698+ hostdesc->data = rxbuf;
15699+ hostdesc->length = cpu_to_le16(RX_BUFFER_SIZE);
15700+ rxbuf++;
15701+ hostdesc++;
15702+ }
15703+ hostdesc--;
15704+ FN_EXIT1(OK);
15705+ return OK;
15706+fail:
15707+ printk("acx: create_rx_host_desc_queue FAILED\n");
15708+ /* dealloc will be done by free function on error case */
15709+ FN_EXIT1(NOT_OK);
15710+ return NOT_OK;
15711+}
15712+
15713+
15714+/***************************************************************
15715+** acxmem_s_create_hostdesc_queues
15716+*/
15717+int
15718+acxmem_s_create_hostdesc_queues(acx_device_t *adev)
15719+{
15720+ int result;
15721+ result = acxmem_s_create_tx_host_desc_queue(adev);
15722+ if (OK != result) return result;
15723+ result = acxmem_s_create_rx_host_desc_queue(adev);
15724+ return result;
15725+}
15726+
15727+
15728+/***************************************************************
15729+** acxmem_create_tx_desc_queue
15730+*/
15731+static void
15732+acxmem_create_tx_desc_queue(acx_device_t *adev, u32 tx_queue_start)
15733+{
15734+ txdesc_t *txdesc;
15735+ u32 clr;
15736+ int i;
15737+
15738+ FN_ENTER;
15739+
15740+ if (IS_ACX100(adev))
15741+ adev->txdesc_size = sizeof(*txdesc);
15742+ else
15743+ /* the acx111 txdesc is 4 bytes larger */
15744+ adev->txdesc_size = sizeof(*txdesc) + 4;
15745+
15746+ /*
15747+ * This refers to an ACX address, not one of ours
15748+ */
15749+ adev->txdesc_start = (txdesc_t *) tx_queue_start;
15750+
15751+ log(L_DEBUG, "adev->txdesc_start=%p\n",
15752+ adev->txdesc_start);
15753+
15754+ adev->tx_free = TX_CNT;
15755+ /* done by memset: adev->tx_head = 0; */
15756+ /* done by memset: adev->tx_tail = 0; */
15757+ txdesc = adev->txdesc_start;
15758+
15759+ if (IS_ACX111(adev)) {
15760+ /* ACX111 has a preinitialized Tx buffer! */
15761+ /* loop over whole send pool */
15762+ /* FIXME: do we have to do the hostmemptr stuff here?? */
15763+ for (i = 0; i < TX_CNT; i++) {
15764+ txdesc->Ctl_8 = DESC_CTL_HOSTOWN;
15765+ /* reserve two (hdr desc and payload desc) */
15766+ txdesc = advance_txdesc(adev, txdesc, 1);
15767+ }
15768+ } else {
15769+ /* ACX100 Tx buffer needs to be initialized by us */
15770+ /* clear whole send pool. sizeof is safe here (we are acx100) */
15771+
15772+ /*
15773+ * adev->txdesc_start refers to device memory, so we can't write
15774+ * directly to it.
15775+ */
15776+ clr = (u32) adev->txdesc_start;
15777+ while (clr < (u32) adev->txdesc_start + (TX_CNT * sizeof(*txdesc))) {
15778+ write_slavemem32 (adev, clr, 0);
15779+ clr += 4;
15780+ }
15781+
15782+ /* loop over whole send pool */
15783+ for (i = 0; i < TX_CNT; i++) {
15784+ log(L_DEBUG, "configure card tx descriptor: 0x%p, "
15785+ "size: 0x%X\n", txdesc, adev->txdesc_size);
15786+
15787+ /* initialise ctl */
15788+ /*
15789+ * No auto DMA here
15790+ */
15791+ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8),
15792+ (u8) (DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG));
15793+ /* done by memset(0): txdesc->Ctl2_8 = 0; */
15794+
15795+ /* point to next txdesc */
15796+ write_slavemem32 (adev, (u32) &(txdesc->pNextDesc),
15797+ (u32) cpu_to_le32 ((u8 *) txdesc + adev->txdesc_size));
15798+
15799+ /* go to the next one */
15800+ /* ++ is safe here (we are acx100) */
15801+ txdesc++;
15802+ }
15803+ /* go back to the last one */
15804+ txdesc--;
15805+ /* and point to the first making it a ring buffer */
15806+ write_slavemem32 (adev, (u32) &(txdesc->pNextDesc),
15807+ (u32) cpu_to_le32 (tx_queue_start));
15808+ }
15809+ FN_EXIT0;
15810+}
15811+
15812+
15813+/***************************************************************
15814+** acxmem_create_rx_desc_queue
15815+*/
15816+static void
15817+acxmem_create_rx_desc_queue(acx_device_t *adev, u32 rx_queue_start)
15818+{
15819+ rxdesc_t *rxdesc;
15820+ u32 mem_offs;
15821+ int i;
15822+
15823+ FN_ENTER;
15824+
15825+ /* done by memset: adev->rx_tail = 0; */
15826+
15827+ /* ACX111 doesn't need any further config: preconfigures itself.
15828+ * Simply print ring buffer for debugging */
15829+ if (IS_ACX111(adev)) {
15830+ /* rxdesc_start already set here */
15831+
15832+ adev->rxdesc_start = (rxdesc_t *) rx_queue_start;
15833+
15834+ rxdesc = adev->rxdesc_start;
15835+ for (i = 0; i < RX_CNT; i++) {
15836+ log(L_DEBUG, "rx descriptor %d @ 0x%p\n", i, rxdesc);
15837+ rxdesc = adev->rxdesc_start = (rxdesc_t *)
15838+ acx2cpu(rxdesc->pNextDesc);
15839+ }
15840+ } else {
15841+ /* we didn't pre-calculate rxdesc_start in case of ACX100 */
15842+ /* rxdesc_start should be right AFTER Tx pool */
15843+ adev->rxdesc_start = (rxdesc_t *)
15844+ ((u8 *) adev->txdesc_start + (TX_CNT * sizeof(txdesc_t)));
15845+ /* NB: sizeof(txdesc_t) above is valid because we know
15846+ ** we are in if (acx100) block. Beware of cut-n-pasting elsewhere!
15847+ ** acx111's txdesc is larger! */
15848+
15849+ mem_offs = (u32) adev->rxdesc_start;
15850+ while (mem_offs < (u32) adev->rxdesc_start + (RX_CNT * sizeof (*rxdesc))) {
15851+ write_slavemem32 (adev, mem_offs, 0);
15852+ mem_offs += 4;
15853+ }
15854+
15855+ /* loop over whole receive pool */
15856+ rxdesc = adev->rxdesc_start;
15857+ for (i = 0; i < RX_CNT; i++) {
15858+ log(L_DEBUG, "rx descriptor @ 0x%p\n", rxdesc);
15859+ /* point to next rxdesc */
15860+ write_slavemem32 (adev, (u32) &(rxdesc->pNextDesc),
15861+ (u32) cpu_to_le32 ((u8 *) rxdesc + sizeof(*rxdesc)));
15862+ /* go to the next one */
15863+ rxdesc++;
15864+ }
15865+ /* go to the last one */
15866+ rxdesc--;
15867+
15868+ /* and point to the first making it a ring buffer */
15869+ write_slavemem32 (adev, (u32) &(rxdesc->pNextDesc),
15870+ (u32) cpu_to_le32 (rx_queue_start));
15871+ }
15872+ FN_EXIT0;
15873+}
15874+
15875+
15876+/***************************************************************
15877+** acxmem_create_desc_queues
15878+*/
15879+void
15880+acxmem_create_desc_queues(acx_device_t *adev, u32 tx_queue_start, u32 rx_queue_start)
15881+{
15882+ u32 *p;
15883+ int i;
15884+
15885+ acxmem_create_tx_desc_queue(adev, tx_queue_start);
15886+ acxmem_create_rx_desc_queue(adev, rx_queue_start);
15887+ p = (u32 *) adev->acx_queue_indicator;
15888+ for (i = 0; i < 4; i++) {
15889+ write_slavemem32 (adev, (u32) p, 0);
15890+ p++;
15891+ }
15892+}
15893+
15894+
15895+/***************************************************************
15896+** acxmem_s_proc_diag_output
15897+*/
15898+char*
15899+acxmem_s_proc_diag_output(char *p, acx_device_t *adev)
15900+{
15901+ const char *rtl, *thd, *ttl;
15902+ txdesc_t *txdesc;
15903+ u8 Ctl_8;
15904+ rxdesc_t *rxdesc;
15905+ int i;
15906+ u32 tmp;
15907+ txdesc_t txd;
15908+ u8 buf[0x200];
15909+ int j, k;
15910+
15911+ FN_ENTER;
15912+
15913+#if DUMP_MEM_DURING_DIAG > 0
15914+ dump_acxmem (adev, 0, 0x10000);
15915+ panic ("dump finished");
15916+#endif
15917+
15918+ p += sprintf(p, "** Rx buf **\n");
15919+ rxdesc = adev->rxdesc_start;
15920+ if (rxdesc) for (i = 0; i < RX_CNT; i++) {
15921+ rtl = (i == adev->rx_tail) ? " [tail]" : "";
15922+ Ctl_8 = read_slavemem8 (adev, (u32) &(rxdesc->Ctl_8));
15923+ if (Ctl_8 & DESC_CTL_HOSTOWN)
15924+ p += sprintf(p, "%02u (%02x) FULL%s\n", i, Ctl_8, rtl);
15925+ else
15926+ p += sprintf(p, "%02u (%02x) empty%s\n", i, Ctl_8, rtl);
15927+ rxdesc++;
15928+ }
15929+ p += sprintf(p, "** Tx buf (free %d, Linux netqueue %s) **\n", adev->tx_free,
15930+ acx_queue_stopped(adev->ndev) ? "STOPPED" : "running");
15931+
15932+ p += sprintf(p, "** Tx buf %d blocks total, %d available, free list head %04x\n",
15933+ adev->acx_txbuf_numblocks, adev->acx_txbuf_blocks_free, adev->acx_txbuf_free);
15934+ txdesc = adev->txdesc_start;
15935+ if (txdesc) {
15936+ for (i = 0; i < TX_CNT; i++) {
15937+ thd = (i == adev->tx_head) ? " [head]" : "";
15938+ ttl = (i == adev->tx_tail) ? " [tail]" : "";
15939+ copy_from_slavemem (adev, (u8 *) &txd, (u32) txdesc, sizeof (txd));
15940+ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8));
15941+ if (Ctl_8 & DESC_CTL_ACXDONE)
15942+ p += sprintf(p, "%02u ready to free (%02X)%s%s", i, Ctl_8, thd, ttl);
15943+ else if (Ctl_8 & DESC_CTL_HOSTOWN)
15944+ p += sprintf(p, "%02u available (%02X)%s%s", i, Ctl_8, thd, ttl);
15945+ else
15946+ p += sprintf(p, "%02u busy (%02X)%s%s", i, Ctl_8, thd, ttl);
15947+ tmp = read_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr));
15948+ if (tmp) {
15949+ p += sprintf (p, " %04x", tmp);
15950+ while ((tmp = read_slavemem32 (adev, (u32) tmp)) != 0x02000000) {
15951+ tmp <<= 5;
15952+ p += sprintf (p, " %04x", tmp);
15953+ }
15954+ }
15955+ p += sprintf (p, "\n");
15956+ p += sprintf (p, " %04x: %04x %04x %04x %04x %04x %04x %04x %04x %04x %04x %02x %02x %02x %02x\n"
15957+ "%02x %02x %02x %02x %04x\n",
15958+ (u32) txdesc,
15959+ txd.pNextDesc.v, txd.HostMemPtr.v, txd.AcxMemPtr.v, txd.tx_time,
15960+ txd.total_length, txd.Reserved,
15961+ txd.dummy[0], txd.dummy[1], txd.dummy[2], txd.dummy[3],
15962+ txd.Ctl_8, txd.Ctl2_8, txd.error, txd.ack_failures,
15963+ txd.u.rts.rts_failures, txd.u.rts.rts_ok, txd.u.r1.rate, txd.u.r1.queue_ctrl,
15964+ txd.queue_info
15965+ );
15966+ if (txd.AcxMemPtr.v) {
15967+ copy_from_slavemem (adev, buf, txd.AcxMemPtr.v, sizeof (buf));
15968+ for (j = 0; (j < txd.total_length) && (j<(sizeof(buf)-4)); j+=16) {
15969+ p += sprintf (p, " ");
15970+ for (k = 0; (k < 16) && (j+k < txd.total_length); k++) {
15971+ p += sprintf (p, " %02x", buf[j+k+4]);
15972+ }
15973+ p += sprintf (p, "\n");
15974+ }
15975+ }
15976+ txdesc = advance_txdesc(adev, txdesc, 1);
15977+ }
15978+ }
15979+
15980+ p += sprintf(p,
15981+ "\n"
15982+ "** Generic slave data **\n"
15983+ "irq_mask 0x%04x irq_status 0x%04x irq on acx 0x%04x\n"
15984+ "txbuf_start 0x%p, txbuf_area_size %u\n"
15985+ "txdesc_size %u, txdesc_start 0x%p\n"
15986+ "txhostdesc_start 0x%p, txhostdesc_area_size %u\n"
15987+ "txbuf start 0x%04x, txbuf size %d\n"
15988+ "rxdesc_start 0x%p\n"
15989+ "rxhostdesc_start 0x%p, rxhostdesc_area_size %u\n"
15990+ "rxbuf_start 0x%p, rxbuf_area_size %u\n",
15991+ adev->irq_mask, adev->irq_status, read_reg32(adev, IO_ACX_IRQ_STATUS_NON_DES),
15992+ adev->txbuf_start, adev->txbuf_area_size,
15993+ adev->txdesc_size, adev->txdesc_start,
15994+ adev->txhostdesc_start, adev->txhostdesc_area_size,
15995+ adev->acx_txbuf_start, adev->acx_txbuf_numblocks * adev->memblocksize,
15996+ adev->rxdesc_start,
15997+ adev->rxhostdesc_start, adev->rxhostdesc_area_size,
15998+ adev->rxbuf_start, adev->rxbuf_area_size);
15999+ FN_EXIT0;
16000+ return p;
16001+}
16002+
16003+
16004+/***********************************************************************
16005+*/
16006+int
16007+acxmem_proc_eeprom_output(char *buf, acx_device_t *adev)
16008+{
16009+ char *p = buf;
16010+ int i;
16011+
16012+ FN_ENTER;
16013+
16014+ for (i = 0; i < 0x400; i++) {
16015+ acxmem_read_eeprom_byte(adev, i, p++);
16016+ }
16017+
16018+ FN_EXIT1(p - buf);
16019+ return p - buf;
16020+}
16021+
16022+
16023+/***********************************************************************
16024+*/
16025+void
16026+acxmem_set_interrupt_mask(acx_device_t *adev)
16027+{
16028+ if (IS_ACX111(adev)) {
16029+ adev->irq_mask = (u16) ~(0
16030+ | HOST_INT_RX_DATA
16031+ | HOST_INT_TX_COMPLETE
16032+ /* | HOST_INT_TX_XFER */
16033+ /* | HOST_INT_RX_COMPLETE */
16034+ /* | HOST_INT_DTIM */
16035+ /* | HOST_INT_BEACON */
16036+ /* | HOST_INT_TIMER */
16037+ /* | HOST_INT_KEY_NOT_FOUND */
16038+ | HOST_INT_IV_ICV_FAILURE
16039+ | HOST_INT_CMD_COMPLETE
16040+ | HOST_INT_INFO
16041+ | HOST_INT_OVERFLOW
16042+ /* | HOST_INT_PROCESS_ERROR */
16043+ | HOST_INT_SCAN_COMPLETE
16044+ | HOST_INT_FCS_THRESHOLD
16045+ | HOST_INT_UNKNOWN
16046+ );
16047+ /* Or else acx100 won't signal cmd completion, right? */
16048+ adev->irq_mask_off = (u16)~( HOST_INT_CMD_COMPLETE ); /* 0xfdff */
16049+ } else {
16050+ adev->irq_mask = (u16) ~(0
16051+ | HOST_INT_RX_DATA
16052+ | HOST_INT_TX_COMPLETE
16053+ /* | HOST_INT_TX_XFER */
16054+ /* | HOST_INT_RX_COMPLETE */
16055+ /* | HOST_INT_DTIM */
16056+ /* | HOST_INT_BEACON */
16057+ /* | HOST_INT_TIMER */
16058+ /* | HOST_INT_KEY_NOT_FOUND */
16059+ /* | HOST_INT_IV_ICV_FAILURE */
16060+ | HOST_INT_CMD_COMPLETE
16061+ | HOST_INT_INFO
16062+ /* | HOST_INT_OVERFLOW */
16063+ /* | HOST_INT_PROCESS_ERROR */
16064+ | HOST_INT_SCAN_COMPLETE
16065+ /* | HOST_INT_FCS_THRESHOLD */
16066+ /* | HOST_INT_BEACON_MISSED */
16067+ );
16068+ adev->irq_mask_off = (u16)~( HOST_INT_UNKNOWN ); /* 0x7fff */
16069+ }
16070+}
16071+
16072+
16073+/***********************************************************************
16074+*/
16075+int
16076+acx100mem_s_set_tx_level(acx_device_t *adev, u8 level_dbm)
16077+{
16078+ struct acx111_ie_tx_level tx_level;
16079+
16080+ /* since it can be assumed that at least the Maxim radio has a
16081+ * maximum power output of 20dBm and since it also can be
16082+ * assumed that these values drive the DAC responsible for
16083+ * setting the linear Tx level, I'd guess that these values
16084+ * should be the corresponding linear values for a dBm value,
16085+ * in other words: calculate the values from that formula:
16086+ * Y [dBm] = 10 * log (X [mW])
16087+ * then scale the 0..63 value range onto the 1..100mW range (0..20 dBm)
16088+ * and you're done...
16089+ * Hopefully that's ok, but you never know if we're actually
16090+ * right... (especially since Windows XP doesn't seem to show
16091+ * actual Tx dBm values :-P) */
16092+
16093+ /* NOTE: on Maxim, value 30 IS 30mW, and value 10 IS 10mW - so the
16094+ * values are EXACTLY mW!!! Not sure about RFMD and others,
16095+ * though... */
16096+ static const u8 dbm2val_maxim[21] = {
16097+ 63, 63, 63, 62,
16098+ 61, 61, 60, 60,
16099+ 59, 58, 57, 55,
16100+ 53, 50, 47, 43,
16101+ 38, 31, 23, 13,
16102+ 0
16103+ };
16104+ static const u8 dbm2val_rfmd[21] = {
16105+ 0, 0, 0, 1,
16106+ 2, 2, 3, 3,
16107+ 4, 5, 6, 8,
16108+ 10, 13, 16, 20,
16109+ 25, 32, 41, 50,
16110+ 63
16111+ };
16112+ const u8 *table;
16113+
16114+ switch (adev->radio_type) {
16115+ case RADIO_MAXIM_0D:
16116+ table = &dbm2val_maxim[0];
16117+ break;
16118+ case RADIO_RFMD_11:
16119+ case RADIO_RALINK_15:
16120+ table = &dbm2val_rfmd[0];
16121+ break;
16122+ default:
16123+ printk("%s: unknown/unsupported radio type, "
16124+ "cannot modify tx power level yet!\n",
16125+ adev->ndev->name);
16126+ return NOT_OK;
16127+ }
16128+ /*
16129+ * The hx4700 EEPROM, at least, only supports 1 power setting. The configure
16130+ * routine matches the PA bias with the gain, so just use its default value.
16131+ * The values are: 0x2b for the gain and 0x03 for the PA bias. The firmware
16132+ * writes the gain level to the Tx gain control DAC and the PA bias to the Maxim
16133+ * radio's PA bias register. The firmware limits itself to 0 - 64 when writing to the
16134+ * gain control DAC.
16135+ *
16136+ * Physically between the ACX and the radio, higher Tx gain control DAC values result
16137+ * in less power output; 0 volts to the Maxim radio results in the highest output power
16138+ * level, which I'm assuming matches up with 0 in the Tx Gain DAC register.
16139+ *
16140+ * Although there is only the 1 power setting, one of the radio firmware functions adjusts
16141+ * the transmit power level up and down. That function is called by the ACX FIQ handler
16142+ * under certain conditions.
16143+ */
16144+ tx_level.level = 1;
16145+ //return acx_s_configure(adev, &tx_level, ACX1xx_IE_DOT11_TX_POWER_LEVEL);
16146+
16147+ printk("%s: changing radio power level to %u dBm (%u)\n",
16148+ adev->ndev->name, level_dbm, table[level_dbm]);
16149+ acxmem_s_write_phy_reg(adev, 0x11, table[level_dbm]);
16150+
16151+ return 0;
16152+}
16153+
16154+void acxmem_e_release(struct device *dev) {
16155+}
16156+
16157+/***********************************************************************
16158+** acx_cs part
16159+**
16160+** called by pcmcia card service
16161+*/
16162+
16163+/*
16164+ The event() function is this driver's Card Services event handler.
16165+ It will be called by Card Services when an appropriate card status
16166+ event is received. The config() and release() entry points are
16167+ used to configure or release a socket, in response to card
16168+ insertion and ejection events. They are invoked from the acx_cs
16169+ event handler.
16170+*/
16171+
16172+static int acx_cs_config(struct pcmcia_device *link);
16173+static void acx_cs_release(struct pcmcia_device *link);
16174+
16175+/*
16176+ The attach() and detach() entry points are used to create and destroy
16177+ "instances" of the driver, where each instance represents everything
16178+ needed to manage one actual PCMCIA card.
16179+*/
16180+
16181+static void acx_cs_detach(struct pcmcia_device *p_dev);
16182+
16183+/*
16184+ You'll also need to prototype all the functions that will actually
16185+ be used to talk to your device. See 'pcmem_cs' for a good example
16186+ of a fully self-sufficient driver; the other drivers rely more or
16187+ less on other parts of the kernel.
16188+*/
16189+
16190+/*
16191+ A linked list of "instances" of the acxnet device. Each actual
16192+ PCMCIA card corresponds to one device instance, and is described
16193+ by one struct pcmcia_device structure (defined in ds.h).
16194+
16195+ You may not want to use a linked list for this -- for example, the
16196+ memory card driver uses an array of struct pcmcia_device pointers, where minor
16197+ device numbers are used to derive the corresponding array index.
16198+*/
16199+
16200+/*
16201+ A driver needs to provide a dev_node_t structure for each device
16202+ on a card. In some cases, there is only one device per card (for
16203+ example, ethernet cards, modems). In other cases, there may be
16204+ many actual or logical devices (SCSI adapters, memory cards with
16205+ multiple partitions). The dev_node_t structures need to be kept
16206+ in a linked list starting at the 'dev' field of a struct pcmcia_device
16207+ structure. We allocate them in the card's private data structure,
16208+ because they generally shouldn't be allocated dynamically.
16209+
16210+ In this case, we also provide a flag to indicate if a device is
16211+ "stopped" due to a power management event, or card ejection. The
16212+ device IO routines can use a flag like this to throttle IO to a
16213+ card that is not ready to accept it.
16214+*/
16215+
16216+
16217+/*======================================================================
16218+
16219+ acx_attach() creates an "instance" of the driver, allocating
16220+ local data structures for one device. The device is registered
16221+ with Card Services.
16222+
16223+ The dev_link structure is initialized, but we don't actually
16224+ configure the card at this point -- we wait until we receive a
16225+ card insertion event.
16226+
16227+ ======================================================================*/
16228+
16229+static int acx_cs_probe(struct pcmcia_device *link)
16230+{
16231+ local_info_t *local;
16232+ struct net_device *ndev;
16233+
16234+ DEBUG(0, "acx_attach()\n");
16235+
16236+ ndev = alloc_netdev(sizeof(acx_device_t), "wlan%d", dummy_netdev_init);
16237+ if (!ndev) {
16238+ printk("acx: no memory for netdevice struct\n");
16239+ return -ENOMEM;
16240+ }
16241+
16242+ /* Interrupt setup */
16243+ link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
16244+ link->irq.IRQInfo1 = IRQ_LEVEL_ID;
16245+ link->irq.Handler = acxmem_i_interrupt;
16246+ link->irq.Instance = ndev;
16247+
16248+ /*
16249+ General socket configuration defaults can go here. In this
16250+ client, we assume very little, and rely on the CIS for almost
16251+ everything. In most clients, many details (i.e., number, sizes,
16252+ and attributes of IO windows) are fixed by the nature of the
16253+ device, and can be hard-wired here.
16254+ */
16255+ link->conf.Attributes = CONF_ENABLE_IRQ;
16256+ link->conf.IntType = INT_MEMORY_AND_IO;
16257+ link->conf.Present = PRESENT_OPTION | PRESENT_COPY;
16258+
16259+ /* Allocate space for private device-specific data */
16260+ local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
16261+ if (!local) {
16262+ printk(KERN_ERR "acx_cs: no memory for new device\n");
16263+ return -ENOMEM;
16264+ }
16265+ local->ndev = ndev;
16266+
16267+ link->priv = local;
16268+
16269+ return acx_cs_config(link);
16270+} /* acx_attach */
16271+
16272+/*======================================================================
16273+
16274+ This deletes a driver "instance". The device is de-registered
16275+ with Card Services. If it has been released, all local data
16276+ structures are freed. Otherwise, the structures will be freed
16277+ when the device is released.
16278+
16279+ ======================================================================*/
16280+
16281+static void acx_cs_detach(struct pcmcia_device *link)
16282+{
16283+ DEBUG(0, "acx_detach(0x%p)\n", link);
16284+
16285+
16286+ if ( ((local_info_t*)link->priv)->ndev ) {
16287+ acxmem_e_close( ((local_info_t*)link->priv)->ndev );
16288+ }
16289+
16290+ acx_cs_release(link);
16291+
16292+ ((local_info_t*)link->priv)->ndev = NULL;
16293+
16294+ kfree(link->priv);
16295+} /* acx_detach */
16296+
16297+/*======================================================================
16298+
16299+ acx_config() is scheduled to run after a CARD_INSERTION event
16300+ is received, to configure the PCMCIA socket, and to make the
16301+ device available to the system.
16302+
16303+ ======================================================================*/
16304+
16305+#define CS_CHECK(fn, ret) \
16306+do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
16307+
16308+static int acx_cs_config(struct pcmcia_device *link)
16309+{
16310+ tuple_t tuple;
16311+ cisparse_t parse;
16312+ local_info_t *local = link->priv;
16313+ int last_fn, last_ret;
16314+ u_char buf[64];
16315+ win_req_t req;
16316+ memreq_t map;
16317+// int i;
16318+// acx_device_t *adev;
16319+
16320+// adev = (acx_device_t *)link->priv;
16321+
16322+ DEBUG(0, "acx_cs_config(0x%p)\n", link);
16323+
16324+ /*
16325+ In this loop, we scan the CIS for configuration table entries,
16326+ each of which describes a valid card configuration, including
16327+ voltage, IO window, memory window, and interrupt settings.
16328+
16329+ We make no assumptions about the card to be configured: we use
16330+ just the information available in the CIS. In an ideal world,
16331+ this would work for any PCMCIA card, but it requires a complete
16332+ and accurate CIS. In practice, a driver usually "knows" most of
16333+ these things without consulting the CIS, and most client drivers
16334+ will only use the CIS to fill in implementation-defined details.
16335+ */
16336+ tuple.Attributes = 0;
16337+ tuple.TupleData = (cisdata_t *)buf;
16338+ tuple.TupleDataMax = sizeof(buf);
16339+ tuple.TupleOffset = 0;
16340+ tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
16341+
16342+ /* don't trust the CIS on this; Linksys got it wrong */
16343+ //link->conf.Present = 0x63;
16344+
16345+ CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
16346+ while (1) {
16347+ cistpl_cftable_entry_t dflt = { 0 };
16348+ cistpl_cftable_entry_t *cfg = &(parse.cftable_entry);
16349+ if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
16350+ pcmcia_parse_tuple(link, &tuple, &parse) != 0)
16351+ goto next_entry;
16352+
16353+ if (cfg->flags & CISTPL_CFTABLE_DEFAULT) dflt = *cfg;
16354+ if (cfg->index == 0) goto next_entry;
16355+ link->conf.ConfigIndex = cfg->index;
16356+
16357+ /* Does this card need audio output? */
16358+ if (cfg->flags & CISTPL_CFTABLE_AUDIO) {
16359+ link->conf.Attributes |= CONF_ENABLE_SPKR;
16360+ link->conf.Status = CCSR_AUDIO_ENA;
16361+ }
16362+
16363+ /* Use power settings for Vcc and Vpp if present */
16364+ /* Note that the CIS values need to be rescaled */
16365+ if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM))
16366+ link->conf.Vpp =
16367+ cfg->vpp1.param[CISTPL_POWER_VNOM]/10000;
16368+ else if (dflt.vpp1.present & (1<<CISTPL_POWER_VNOM))
16369+ link->conf.Vpp =
16370+ dflt.vpp1.param[CISTPL_POWER_VNOM]/10000;
16371+
16372+ /* Do we need to allocate an interrupt? */
16373+ if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1)
16374+ link->conf.Attributes |= CONF_ENABLE_IRQ;
16375+ if ((cfg->mem.nwin > 0) || (dflt.mem.nwin > 0)) {
16376+ cistpl_mem_t *mem =
16377+ (cfg->mem.nwin) ? &cfg->mem : &dflt.mem;
16378+// req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_AM|WIN_ENABLE|WIN_USE_WAIT;
16379+ req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM|WIN_ENABLE|WIN_USE_WAIT;
16380+ req.Base = mem->win[0].host_addr;
16381+ req.Size = mem->win[0].len;
16382+ req.Size=0x1000;
16383+ req.AccessSpeed = 0;
16384+ if (pcmcia_request_window(&link, &req, &link->win) != 0)
16385+ goto next_entry;
16386+ map.Page = 0; map.CardOffset = mem->win[0].card_addr;
16387+ if (pcmcia_map_mem_page(link->win, &map) != 0)
16388+ goto next_entry;
16389+ else
16390+ printk(KERN_INFO "MEMORY WINDOW FOUND!!!\n");
16391+ }
16392+ /* If we got this far, we're cool! */
16393+ break;
16394+
16395+ next_entry:
16396+ CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
16397+ }
16398+
16399+ if (link->conf.Attributes & CONF_ENABLE_IRQ) {
16400+ printk(KERN_INFO "requesting Irq...\n");
16401+ CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
16402+ }
16403+
16404+ /*
16405+ This actually configures the PCMCIA socket -- setting up
16406+ the I/O windows and the interrupt mapping, and putting the
16407+ card and host interface into "Memory and IO" mode.
16408+ */
16409+ CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
16410+ DEBUG(0,"RequestConfiguration OK\n");
16411+
16412+
16413+ memwin.Base=req.Base;
16414+ memwin.Size=req.Size;
16415+
16416+ acx_init_netdev(local->ndev, &link->dev, memwin.Base, memwin.Size, link->irq.AssignedIRQ);
16417+
16418+#if 1
16419+ /*
16420+ At this point, the dev_node_t structure(s) need to be
16421+ initialized and arranged in a linked list at link->dev_node.
16422+ */
16423+ strcpy(local->node.dev_name, local->ndev->name );
16424+ local->node.major = local->node.minor = 0;
16425+ link->dev_node = &local->node;
16426+
16427+ /* Finally, report what we've done */
16428+ printk(KERN_INFO "%s: index 0x%02x: ",
16429+ local->ndev->name, link->conf.ConfigIndex);
16430+#endif
16431+ if (link->conf.Attributes & CONF_ENABLE_IRQ)
16432+ printk("irq %d", link->irq.AssignedIRQ);
16433+ if (link->io.NumPorts1)
16434+ printk(", io 0x%04x-0x%04x", link->io.BasePort1,
16435+ link->io.BasePort1+link->io.NumPorts1-1);
16436+ if (link->io.NumPorts2)
16437+ printk(" & 0x%04x-0x%04x", link->io.BasePort2,
16438+ link->io.BasePort2+link->io.NumPorts2-1);
16439+ if (link->win)
16440+ printk(", mem 0x%06lx-0x%06lx\n", req.Base,
16441+ req.Base+req.Size-1);
16442+ return 0;
16443+
16444+ cs_failed:
16445+ cs_error(link, last_fn, last_ret);
16446+ acx_cs_release(link);
16447+ return -ENODEV;
16448+} /* acx_config */
16449+
16450+/*======================================================================
16451+
16452+ After a card is removed, acx_release() will unregister the
16453+ device, and release the PCMCIA configuration. If the device is
16454+ still open, this will be postponed until it is closed.
16455+
16456+ ======================================================================*/
16457+
16458+static void acx_cs_release(struct pcmcia_device *link)
16459+{
16460+ DEBUG(0, "acx_release(0x%p)\n", link);
16461+ acxmem_e_remove(link);
16462+ pcmcia_disable_device(link);
16463+}
16464+
16465+static int acx_cs_suspend(struct pcmcia_device *link)
16466+{
16467+ local_info_t *local = link->priv;
16468+
16469+ pm_message_t state;
16470+ acxmem_e_suspend ( local->ndev, state);
16471+ /* Already done in suspend
16472+ * netif_device_detach(local->ndev); */
16473+
16474+ return 0;
16475+}
16476+
16477+static int acx_cs_resume(struct pcmcia_device *link)
16478+{
16479+ local_info_t *local = link->priv;
16480+
16481+ FN_ENTER;
16482+ resume_ndev = local->ndev;
16483+
16484+ schedule_work( &fw_resume_work );
16485+
16486+ /* Already done in suspend
16487+ if (link->open) {
16488+ // do we need reset for ACX, if so what function nane is ?
16489+ //reset_acx_card(local->eth_dev);
16490+ netif_device_attach(local->ndev);
16491+ } */
16492+
16493+ FN_EXIT0;
16494+ return 0;
16495+}
16496+
16497+static struct pcmcia_device_id acx_ids[] = {
16498+ PCMCIA_DEVICE_MANF_CARD(0x0097, 0x8402),
16499+ PCMCIA_DEVICE_MANF_CARD(0x0250, 0xb001),
16500+ PCMCIA_DEVICE_NULL,
16501+};
16502+MODULE_DEVICE_TABLE(pcmcia, acx_ids);
16503+
16504+static struct pcmcia_driver acx_driver = {
16505+ .owner = THIS_MODULE,
16506+ .drv = {
16507+ .name = "acx_cs",
16508+ },
16509+ .probe = acx_cs_probe,
16510+ .remove = acx_cs_detach,
16511+ .id_table = acx_ids,
16512+ .suspend = acx_cs_suspend,
16513+ .resume = acx_cs_resume,
16514+};
16515+
16516+int acx_cs_init(void)
16517+{
16518+ /* return success if at least one succeeded */
16519+ DEBUG(0, "acxcs_init()\n");
16520+ return pcmcia_register_driver(&acx_driver);
16521+}
16522+
16523+void acx_cs_cleanup(void)
16524+{
16525+ pcmcia_unregister_driver(&acx_driver);
16526+}
16527+
16528+/*
16529+ This program is free software; you can redistribute it and/or
16530+ modify it under the terms of the GNU General Public License
16531+ as published by the Free Software Foundation; either version 2
16532+ of the License, or (at your option) any later version.
16533+
16534+ This program is distributed in the hope that it will be useful,
16535+ but WITHOUT ANY WARRANTY; without even the implied warranty of
16536+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16537+ GNU General Public License for more details.
16538+
16539+ In addition:
16540+
16541+ Redistribution and use in source and binary forms, with or without
16542+ modification, are permitted provided that the following conditions
16543+ are met:
16544+
16545+ 1. Redistributions of source code must retain the above copyright
16546+ notice, this list of conditions and the following disclaimer.
16547+ 2. Redistributions in binary form must reproduce the above copyright
16548+ notice, this list of conditions and the following disclaimer in the
16549+ documentation and/or other materials provided with the distribution.
16550+ 3. The name of the author may not be used to endorse or promote
16551+ products derived from this software without specific prior written
16552+ permission.
16553+
16554+ THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16555+ IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16556+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16557+ ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
16558+ INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
16559+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
16560+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
16561+ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
16562+ STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
16563+ IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
16564+ POSSIBILITY OF SUCH DAMAGE.
16565+*/
16566+
16567+MODULE_DESCRIPTION( "ACX Cardbus Driver" );
16568+MODULE_LICENSE( "GPL" );
16569+
16570Index: linux-2.6.22/drivers/net/wireless/acx/htcsable_acx.c
16571===================================================================
16572--- /dev/null 1970-01-01 00:00:00.000000000 +0000
16573+++ linux-2.6.22/drivers/net/wireless/acx/htcsable_acx.c 2007-08-23 18:34:19.000000000 +0200
16574@@ -0,0 +1,118 @@
16575+/*
16576+ * WLAN (TI TNETW1100B) support in the HTC Sable
16577+ *
16578+ * Copyright (c) 2006 SDG Systems, LLC
16579+ *
16580+ * This file is subject to the terms and conditions of the GNU General Public
16581+ * License. See the file COPYING in the main directory of this archive for
16582+ * more details.
16583+ *
16584+ * 28-March-2006 Todd Blumer <todd@sdgsystems.com>
16585+ */
16586+
16587+
16588+#include <linux/kernel.h>
16589+#include <linux/platform_device.h>
16590+#include <linux/delay.h>
16591+
16592+#include <asm/hardware.h>
16593+
16594+#include <asm/arch/pxa-regs.h>
16595+#include <linux/mfd/asic3_base.h>
16596+#include <asm/arch/htcsable-gpio.h>
16597+#include <asm/arch/htcsable-asic.h>
16598+#include <asm/io.h>
16599+
16600+#include "acx_hw.h"
16601+
16602+#define WLAN_BASE PXA_CS2_PHYS
16603+
16604+/*
16605+off: b15 c8 d3
16606+on: d3 c8 b5 b5-
16607+*/
16608+
16609+#define GPIO_NR_HTCSABLE_ACX111 111
16610+
16611+static int
16612+htcsable_wlan_stop( void );
16613+
16614+static int
16615+htcsable_wlan_start( void )
16616+{
16617+ printk( "htcsable_wlan_start\n" );
16618+
16619+ /*asic3_set_gpio_out_c(&htcsable_asic3.dev, 1<<GPIOC_ACX_RESET, 0);*/
16620+ asic3_set_gpio_out_c(&htcsable_asic3.dev, 1<<GPIOC_ACX_PWR_3, 1<<GPIOC_ACX_PWR_3); /* related to acx */
16621+ SET_HTCSABLE_GPIO(ACX111, 1);
16622+ asic3_set_gpio_out_b(&htcsable_asic3.dev, 1<<GPIOB_ACX_PWR_1, 1<<GPIOB_ACX_PWR_1);
16623+ asic3_set_gpio_out_d(&htcsable_asic3.dev, 1<<GPIOD_ACX_PWR_2, 1<<GPIOD_ACX_PWR_2);
16624+ mdelay(260);
16625+ asic3_set_gpio_out_c(&htcsable_asic3.dev, 1<<GPIOC_ACX_RESET, 1<<GPIOC_ACX_RESET);
16626+
16627+ return 0;
16628+}
16629+
16630+static int
16631+htcsable_wlan_stop( void )
16632+{
16633+ printk( "htcsable_wlan_stop\n" );
16634+ asic3_set_gpio_out_b(&htcsable_asic3.dev, 1<<GPIOB_ACX_PWR_1, 0);
16635+ asic3_set_gpio_out_c(&htcsable_asic3.dev, 1<<GPIOC_ACX_RESET, 0);
16636+ asic3_set_gpio_out_d(&htcsable_asic3.dev, 1<<GPIOD_ACX_PWR_2, 0);
16637+ SET_HTCSABLE_GPIO(ACX111, 0); /* not necessary to power down this one? */
16638+ asic3_set_gpio_out_c(&htcsable_asic3.dev, 1<<GPIOC_ACX_PWR_3, 0); /* not necessary to power down this one? */
16639+
16640+ return 0;
16641+}
16642+
16643+static struct resource acx_resources[] = {
16644+ [0] = {
16645+ .start = WLAN_BASE,
16646+ .end = WLAN_BASE + 0x20,
16647+ .flags = IORESOURCE_MEM,
16648+ },
16649+ [1] = {
16650+// .start = asic3_irq_base(&htcsable_asic3.dev) + ASIC3_GPIOC_IRQ_BASE+GPIOC_WIFI_IRQ_N,
16651+// .end = asic3_irq_base(&htcsable_asic3.dev) + ASIC3_GPIOC_IRQ_BASE+GPIOC_WIFI_IRQ_N,
16652+ .flags = IORESOURCE_IRQ,
16653+ },
16654+};
16655+
16656+static struct acx_hardware_data acx_data = {
16657+ .start_hw = htcsable_wlan_start,
16658+ .stop_hw = htcsable_wlan_stop,
16659+};
16660+
16661+static struct platform_device acx_device = {
16662+ .name = "acx-mem",
16663+ .dev = {
16664+ .platform_data = &acx_data,
16665+ },
16666+ .num_resources = ARRAY_SIZE( acx_resources ),
16667+ .resource = acx_resources,
16668+};
16669+
16670+static int __init
16671+htcsable_wlan_init( void )
16672+{
16673+ printk( "htcsable_wlan_init: acx-mem platform_device_register\n" );
16674+ acx_device.resource[1].start = asic3_irq_base(&htcsable_asic3.dev) + ASIC3_GPIOB_IRQ_BASE+GPIOB_ACX_IRQ_N;
16675+ acx_device.resource[1].end = asic3_irq_base(&htcsable_asic3.dev) + ASIC3_GPIOB_IRQ_BASE+GPIOB_ACX_IRQ_N;
16676+ return platform_device_register( &acx_device );
16677+}
16678+
16679+
16680+static void __exit
16681+htcsable_wlan_exit( void )
16682+{
16683+ platform_device_unregister( &acx_device );
16684+}
16685+
16686+module_init( htcsable_wlan_init );
16687+module_exit( htcsable_wlan_exit );
16688+
16689+MODULE_AUTHOR( "Todd Blumer <todd@sdgsystems.com>" );
16690+MODULE_DESCRIPTION( "WLAN driver for HTC Sable" );
16691+MODULE_LICENSE( "GPL" );
16692+
16693Index: linux-2.6.22/drivers/net/wireless/acx/htcuniversal_acx.c
16694===================================================================
16695--- /dev/null 1970-01-01 00:00:00.000000000 +0000
16696+++ linux-2.6.22/drivers/net/wireless/acx/htcuniversal_acx.c 2007-08-23 18:34:19.000000000 +0200
16697@@ -0,0 +1,108 @@
16698+/*
16699+ * WLAN (TI TNETW1100B) support in the HTC Universal
16700+ *
16701+ * Copyright (c) 2006 SDG Systems, LLC
16702+ *
16703+ * This file is subject to the terms and conditions of the GNU General Public
16704+ * License. See the file COPYING in the main directory of this archive for
16705+ * more details.
16706+ *
16707+ * 28-March-2006 Todd Blumer <todd@sdgsystems.com>
16708+ */
16709+
16710+
16711+#include <linux/kernel.h>
16712+#include <linux/platform_device.h>
16713+#include <linux/delay.h>
16714+
16715+#include <asm/hardware.h>
16716+
16717+#include <asm/arch/pxa-regs.h>
16718+#include <linux/soc/asic3_base.h>
16719+#include <asm/arch/htcuniversal-gpio.h>
16720+#include <asm/arch/htcuniversal-asic.h>
16721+#include <asm/io.h>
16722+
16723+#include "acx_hw.h"
16724+
16725+#define WLAN_BASE PXA_CS2_PHYS
16726+
16727+
16728+static int
16729+htcuniversal_wlan_start( void )
16730+{
16731+ htcuniversal_egpio_enable(1<<EGPIO6_WIFI_ON);
16732+ asic3_set_gpio_out_c(&htcuniversal_asic3.dev, 1<<GPIOC_WIFI_PWR1_ON, 1<<GPIOC_WIFI_PWR1_ON);
16733+ asic3_set_gpio_out_d(&htcuniversal_asic3.dev, 1<<GPIOD_WIFI_PWR3_ON, 1<<GPIOD_WIFI_PWR3_ON);
16734+ asic3_set_gpio_out_d(&htcuniversal_asic3.dev, 1<<GPIOD_WIFI_PWR2_ON, 1<<GPIOD_WIFI_PWR2_ON);
16735+ mdelay(100);
16736+
16737+ asic3_set_gpio_out_c(&htcuniversal_asic3.dev, 1<<GPIOC_WIFI_RESET, 0);
16738+ mdelay(100);
16739+ asic3_set_gpio_out_c(&htcuniversal_asic3.dev, 1<<GPIOC_WIFI_RESET, 1<<GPIOC_WIFI_RESET);
16740+ mdelay(100);
16741+ return 0;
16742+}
16743+
16744+static int
16745+htcuniversal_wlan_stop( void )
16746+{
16747+ asic3_set_gpio_out_c(&htcuniversal_asic3.dev, 1<<GPIOC_WIFI_RESET, 0);
16748+
16749+ htcuniversal_egpio_disable(1<<EGPIO6_WIFI_ON);
16750+ asic3_set_gpio_out_c(&htcuniversal_asic3.dev, 1<<GPIOC_WIFI_PWR1_ON, 0);
16751+ asic3_set_gpio_out_d(&htcuniversal_asic3.dev, 1<<GPIOD_WIFI_PWR2_ON, 0);
16752+ asic3_set_gpio_out_d(&htcuniversal_asic3.dev, 1<<GPIOD_WIFI_PWR3_ON, 0);
16753+ return 0;
16754+}
16755+
16756+static struct resource acx_resources[] = {
16757+ [0] = {
16758+ .start = WLAN_BASE,
16759+ .end = WLAN_BASE + 0x20,
16760+ .flags = IORESOURCE_MEM,
16761+ },
16762+ [1] = {
16763+// .start = asic3_irq_base(&htcuniversal_asic3.dev) + ASIC3_GPIOC_IRQ_BASE+GPIOC_WIFI_IRQ_N,
16764+// .end = asic3_irq_base(&htcuniversal_asic3.dev) + ASIC3_GPIOC_IRQ_BASE+GPIOC_WIFI_IRQ_N,
16765+ .flags = IORESOURCE_IRQ,
16766+ },
16767+};
16768+
16769+static struct acx_hardware_data acx_data = {
16770+ .start_hw = htcuniversal_wlan_start,
16771+ .stop_hw = htcuniversal_wlan_stop,
16772+};
16773+
16774+static struct platform_device acx_device = {
16775+ .name = "acx-mem",
16776+ .dev = {
16777+ .platform_data = &acx_data,
16778+ },
16779+ .num_resources = ARRAY_SIZE( acx_resources ),
16780+ .resource = acx_resources,
16781+};
16782+
16783+static int __init
16784+htcuniversal_wlan_init( void )
16785+{
16786+ printk( "htcuniversal_wlan_init: acx-mem platform_device_register\n" );
16787+ acx_device.resource[1].start = asic3_irq_base(&htcuniversal_asic3.dev) + ASIC3_GPIOC_IRQ_BASE+GPIOC_WIFI_IRQ_N;
16788+ acx_device.resource[1].end = asic3_irq_base(&htcuniversal_asic3.dev) + ASIC3_GPIOC_IRQ_BASE+GPIOC_WIFI_IRQ_N;
16789+ return platform_device_register( &acx_device );
16790+}
16791+
16792+
16793+static void __exit
16794+htcuniversal_wlan_exit( void )
16795+{
16796+ platform_device_unregister( &acx_device );
16797+}
16798+
16799+module_init( htcuniversal_wlan_init );
16800+module_exit( htcuniversal_wlan_exit );
16801+
16802+MODULE_AUTHOR( "Todd Blumer <todd@sdgsystems.com>" );
16803+MODULE_DESCRIPTION( "WLAN driver for HTC Universal" );
16804+MODULE_LICENSE( "GPL" );
16805+
16806Index: linux-2.6.22/drivers/net/wireless/acx/hx4700_acx.c
16807===================================================================
16808--- /dev/null 1970-01-01 00:00:00.000000000 +0000
16809+++ linux-2.6.22/drivers/net/wireless/acx/hx4700_acx.c 2007-08-23 18:34:19.000000000 +0200
16810@@ -0,0 +1,108 @@
16811+/*
16812+ * WLAN (TI TNETW1100B) support in the hx470x.
16813+ *
16814+ * Copyright (c) 2006 SDG Systems, LLC
16815+ *
16816+ * This file is subject to the terms and conditions of the GNU General Public
16817+ * License. See the file COPYING in the main directory of this archive for
16818+ * more details.
16819+ *
16820+ * 28-March-2006 Todd Blumer <todd@sdgsystems.com>
16821+ */
16822+
16823+
16824+#include <linux/kernel.h>
16825+#include <linux/platform_device.h>
16826+#include <linux/delay.h>
16827+#include <linux/leds.h>
16828+
16829+#include <asm/hardware.h>
16830+
16831+#include <asm/arch/pxa-regs.h>
16832+#include <asm/arch/hx4700-gpio.h>
16833+#include <asm/arch/hx4700-core.h>
16834+#include <asm/io.h>
16835+
16836+#include "acx_hw.h"
16837+
16838+#define WLAN_OFFSET 0x1000000
16839+#define WLAN_BASE (PXA_CS5_PHYS+WLAN_OFFSET)
16840+
16841+
16842+static int
16843+hx4700_wlan_start( void )
16844+{
16845+ SET_HX4700_GPIO( WLAN_RESET_N, 0 );
16846+ mdelay(5);
16847+ hx4700_egpio_enable( EGPIO0_VCC_3V3_EN );
16848+ mdelay(100);
16849+ hx4700_egpio_enable( EGPIO7_VCC_3V3_WL_EN );
16850+ mdelay(150);
16851+ hx4700_egpio_enable( EGPIO1_WL_VREG_EN | EGPIO2_VCC_2V1_WL_EN |
16852+ EGPIO6_WL1V8_EN );
16853+ mdelay(10);
16854+ SET_HX4700_GPIO( WLAN_RESET_N, 1 );
16855+ mdelay(50);
16856+ led_trigger_event_shared(hx4700_radio_trig, LED_FULL);
16857+ return 0;
16858+}
16859+
16860+static int
16861+hx4700_wlan_stop( void )
16862+{
16863+ hx4700_egpio_disable( EGPIO0_VCC_3V3_EN | EGPIO1_WL_VREG_EN |
16864+ EGPIO7_VCC_3V3_WL_EN | EGPIO2_VCC_2V1_WL_EN |
16865+ EGPIO6_WL1V8_EN );
16866+ SET_HX4700_GPIO( WLAN_RESET_N, 0 );
16867+ led_trigger_event_shared(hx4700_radio_trig, LED_OFF);
16868+ return 0;
16869+}
16870+
16871+static struct resource acx_resources[] = {
16872+ [0] = {
16873+ .start = WLAN_BASE,
16874+ .end = WLAN_BASE + 0x20,
16875+ .flags = IORESOURCE_MEM,
16876+ },
16877+ [1] = {
16878+ .start = HX4700_IRQ(WLAN_IRQ_N),
16879+ .end = HX4700_IRQ(WLAN_IRQ_N),
16880+ .flags = IORESOURCE_IRQ,
16881+ },
16882+};
16883+
16884+static struct acx_hardware_data acx_data = {
16885+ .start_hw = hx4700_wlan_start,
16886+ .stop_hw = hx4700_wlan_stop,
16887+};
16888+
16889+static struct platform_device acx_device = {
16890+ .name = "acx-mem",
16891+ .dev = {
16892+ .platform_data = &acx_data,
16893+ },
16894+ .num_resources = ARRAY_SIZE( acx_resources ),
16895+ .resource = acx_resources,
16896+};
16897+
16898+static int __init
16899+hx4700_wlan_init( void )
16900+{
16901+ printk( "hx4700_wlan_init: acx-mem platform_device_register\n" );
16902+ return platform_device_register( &acx_device );
16903+}
16904+
16905+
16906+static void __exit
16907+hx4700_wlan_exit( void )
16908+{
16909+ platform_device_unregister( &acx_device );
16910+}
16911+
16912+module_init( hx4700_wlan_init );
16913+module_exit( hx4700_wlan_exit );
16914+
16915+MODULE_AUTHOR( "Todd Blumer <todd@sdgsystems.com>" );
16916+MODULE_DESCRIPTION( "WLAN driver for iPAQ hx4700" );
16917+MODULE_LICENSE( "GPL" );
16918+
16919Index: linux-2.6.22/drivers/net/wireless/acx/ioctl.c
16920===================================================================
16921--- /dev/null 1970-01-01 00:00:00.000000000 +0000
16922+++ linux-2.6.22/drivers/net/wireless/acx/ioctl.c 2007-08-23 18:34:19.000000000 +0200
16923@@ -0,0 +1,2748 @@
16924+/***********************************************************************
16925+** Copyright (C) 2003 ACX100 Open Source Project
16926+**
16927+** The contents of this file are subject to the Mozilla Public
16928+** License Version 1.1 (the "License"); you may not use this file
16929+** except in compliance with the License. You may obtain a copy of
16930+** the License at http://www.mozilla.org/MPL/
16931+**
16932+** Software distributed under the License is distributed on an "AS
16933+** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
16934+** implied. See the License for the specific language governing
16935+** rights and limitations under the License.
16936+**
16937+** Alternatively, the contents of this file may be used under the
16938+** terms of the GNU Public License version 2 (the "GPL"), in which
16939+** case the provisions of the GPL are applicable instead of the
16940+** above. If you wish to allow the use of your version of this file
16941+** only under the terms of the GPL and not to allow others to use
16942+** your version of this file under the MPL, indicate your decision
16943+** by deleting the provisions above and replace them with the notice
16944+** and other provisions required by the GPL. If you do not delete
16945+** the provisions above, a recipient may use your version of this
16946+** file under either the MPL or the GPL.
16947+** ---------------------------------------------------------------------
16948+** Inquiries regarding the ACX100 Open Source Project can be
16949+** made directly to:
16950+**
16951+** acx100-users@lists.sf.net
16952+** http://acx100.sf.net
16953+** ---------------------------------------------------------------------
16954+*/
16955+
16956+#include <linux/version.h>
16957+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18)
16958+#include <linux/config.h>
16959+#endif
16960+#include <linux/kernel.h>
16961+#include <linux/types.h>
16962+#include <asm/io.h>
16963+/* #include <asm/uaccess.h> */ /* required for 2.4.x kernels; verify_write() */
16964+#include <linux/if_arp.h>
16965+#include <linux/wireless.h>
16966+#include <net/iw_handler.h>
16967+
16968+#include "acx.h"
16969+
16970+
16971+/***********************************************************************
16972+*/
16973+
16974+/* channel frequencies
16975+ * TODO: Currently, every other 802.11 driver keeps its own copy of this. In
16976+ * the long run this should be integrated into ieee802_11.h or wireless.h or
16977+ * whatever IEEE802.11x framework evolves */
16978+static const u16 acx_channel_freq[] = {
16979+ 2412, 2417, 2422, 2427, 2432, 2437, 2442,
16980+ 2447, 2452, 2457, 2462, 2467, 2472, 2484,
16981+};
16982+
16983+
16984+/***********************************************************************
16985+** acx_ioctl_commit
16986+*/
16987+static int
16988+acx_ioctl_commit(struct net_device *ndev,
16989+ struct iw_request_info *info,
16990+ union iwreq_data *wrqu,
16991+ char *extra)
16992+{
16993+ acx_device_t *adev = ndev2adev(ndev);
16994+
16995+ FN_ENTER;
16996+
16997+ acx_sem_lock(adev);
16998+ if (ACX_STATE_IFACE_UP & adev->dev_state_mask)
16999+ acx_s_update_card_settings(adev);
17000+ acx_sem_unlock(adev);
17001+
17002+ FN_EXIT0;
17003+ return OK;
17004+}
17005+
17006+
17007+/***********************************************************************
17008+*/
17009+static int
17010+acx_ioctl_get_name(
17011+ struct net_device *ndev,
17012+ struct iw_request_info *info,
17013+ union iwreq_data *wrqu,
17014+ char *extra)
17015+{
17016+ acx_device_t *adev = ndev2adev(ndev);
17017+ static const char * const names[] = { "IEEE 802.11b+/g+", "IEEE 802.11b+" };
17018+
17019+ strcpy(wrqu->name, names[IS_ACX111(adev) ? 0 : 1]);
17020+
17021+ return OK;
17022+}
17023+
17024+
17025+/***********************************************************************
17026+** acx_ioctl_set_freq
17027+*/
17028+static int
17029+acx_ioctl_set_freq(
17030+ struct net_device *ndev,
17031+ struct iw_request_info *info,
17032+ union iwreq_data *wrqu,
17033+ char *extra)
17034+{
17035+ acx_device_t *adev = ndev2adev(ndev);
17036+ int channel = -1;
17037+ unsigned int mult = 1;
17038+ int result;
17039+
17040+ FN_ENTER;
17041+
17042+ if (wrqu->freq.e == 0 && wrqu->freq.m <= 1000) {
17043+ /* Setting by channel number */
17044+ channel = wrqu->freq.m;
17045+ } else {
17046+ /* If setting by frequency, convert to a channel */
17047+ int i;
17048+
17049+ for (i = 0; i < (6 - wrqu->freq.e); i++)
17050+ mult *= 10;
17051+
17052+ for (i = 1; i <= 14; i++)
17053+ if (wrqu->freq.m == acx_channel_freq[i - 1] * mult)
17054+ channel = i;
17055+ }
17056+
17057+ if (channel > 14) {
17058+ result = -EINVAL;
17059+ goto end;
17060+ }
17061+
17062+ acx_sem_lock(adev);
17063+
17064+ adev->channel = channel;
17065+ /* hmm, the following code part is strange, but this is how
17066+ * it was being done before... */
17067+ log(L_IOCTL, "Changing to channel %d\n", channel);
17068+ SET_BIT(adev->set_mask, GETSET_CHANNEL);
17069+
17070+ result = -EINPROGRESS; /* need to call commit handler */
17071+
17072+ acx_sem_unlock(adev);
17073+end:
17074+ FN_EXIT1(result);
17075+ return result;
17076+}
17077+
17078+
17079+/***********************************************************************
17080+*/
17081+static inline int
17082+acx_ioctl_get_freq(
17083+ struct net_device *ndev,
17084+ struct iw_request_info *info,
17085+ union iwreq_data *wrqu,
17086+ char *extra)
17087+{
17088+ acx_device_t *adev = ndev2adev(ndev);
17089+ wrqu->freq.e = 0;
17090+ wrqu->freq.m = adev->channel;
17091+ return OK;
17092+}
17093+
17094+
17095+/***********************************************************************
17096+** acx_ioctl_set_mode
17097+*/
17098+static int
17099+acx_ioctl_set_mode(
17100+ struct net_device *ndev,
17101+ struct iw_request_info *info,
17102+ union iwreq_data *wrqu,
17103+ char *extra)
17104+{
17105+ acx_device_t *adev = ndev2adev(ndev);
17106+ int result;
17107+
17108+ FN_ENTER;
17109+
17110+ acx_sem_lock(adev);
17111+
17112+ switch (wrqu->mode) {
17113+ case IW_MODE_AUTO:
17114+ adev->mode = ACX_MODE_OFF;
17115+ break;
17116+ case IW_MODE_MONITOR:
17117+ adev->mode = ACX_MODE_MONITOR;
17118+ break;
17119+ case IW_MODE_ADHOC:
17120+ adev->mode = ACX_MODE_0_ADHOC;
17121+ break;
17122+ case IW_MODE_INFRA:
17123+ adev->mode = ACX_MODE_2_STA;
17124+ break;
17125+ case IW_MODE_MASTER:
17126+ printk("acx: master mode (HostAP) is very, very "
17127+ "experimental! It might work partially, but "
17128+ "better get prepared for nasty surprises "
17129+ "at any time\n");
17130+ adev->mode = ACX_MODE_3_AP;
17131+ break;
17132+ case IW_MODE_REPEAT:
17133+ case IW_MODE_SECOND:
17134+ default:
17135+ result = -EOPNOTSUPP;
17136+ goto end_unlock;
17137+ }
17138+
17139+ log(L_ASSOC, "new adev->mode=%d\n", adev->mode);
17140+ SET_BIT(adev->set_mask, GETSET_MODE);
17141+ result = -EINPROGRESS;
17142+
17143+end_unlock:
17144+ acx_sem_unlock(adev);
17145+
17146+ FN_EXIT1(result);
17147+ return result;
17148+}
17149+
17150+
17151+/***********************************************************************
17152+*/
17153+static int
17154+acx_ioctl_get_mode(
17155+ struct net_device *ndev,
17156+ struct iw_request_info *info,
17157+ union iwreq_data *wrqu,
17158+ char *extra)
17159+{
17160+ acx_device_t *adev = ndev2adev(ndev);
17161+ int result = 0;
17162+
17163+ switch (adev->mode) {
17164+ case ACX_MODE_OFF:
17165+ wrqu->mode = IW_MODE_AUTO; break;
17166+ case ACX_MODE_MONITOR:
17167+ wrqu->mode = IW_MODE_MONITOR; break;
17168+ case ACX_MODE_0_ADHOC:
17169+ wrqu->mode = IW_MODE_ADHOC; break;
17170+ case ACX_MODE_2_STA:
17171+ wrqu->mode = IW_MODE_INFRA; break;
17172+ case ACX_MODE_3_AP:
17173+ wrqu->mode = IW_MODE_MASTER; break;
17174+ default:
17175+ result = -EOPNOTSUPP;
17176+ }
17177+ return result;
17178+}
17179+
17180+
17181+/***********************************************************************
17182+*/
17183+static int
17184+acx_ioctl_set_sens(
17185+ struct net_device *ndev,
17186+ struct iw_request_info *info,
17187+ union iwreq_data *wrqu,
17188+ char *extra)
17189+{
17190+ struct iw_param *vwrq = &wrqu->sens;
17191+ acx_device_t *adev = ndev2adev(ndev);
17192+
17193+ acx_sem_lock(adev);
17194+
17195+ adev->sensitivity = (1 == vwrq->disabled) ? 0 : vwrq->value;
17196+ SET_BIT(adev->set_mask, GETSET_SENSITIVITY);
17197+
17198+ acx_sem_unlock(adev);
17199+
17200+ return -EINPROGRESS;
17201+}
17202+
17203+
17204+/***********************************************************************
17205+*/
17206+static int
17207+acx_ioctl_get_sens(
17208+ struct net_device *ndev,
17209+ struct iw_request_info *info,
17210+ union iwreq_data *wrqu,
17211+ char *extra)
17212+{
17213+ struct iw_param *vwrq = &wrqu->sens;
17214+ acx_device_t *adev = ndev2adev(ndev);
17215+
17216+ if (IS_USB(adev))
17217+ /* setting the PHY reg via fw cmd doesn't work yet */
17218+ return -EOPNOTSUPP;
17219+
17220+ /* acx_sem_lock(adev); */
17221+
17222+ vwrq->value = adev->sensitivity;
17223+ vwrq->disabled = (vwrq->value == 0);
17224+ vwrq->fixed = 1;
17225+
17226+ /* acx_sem_unlock(adev); */
17227+
17228+ return OK;
17229+}
17230+
17231+
17232+/***********************************************************************
17233+** acx_ioctl_set_ap
17234+**
17235+** Sets the MAC address of the AP to associate with
17236+*/
17237+static int
17238+acx_ioctl_set_ap(
17239+ struct net_device *ndev,
17240+ struct iw_request_info *info,
17241+ union iwreq_data *wrqu,
17242+ char *extra)
17243+{
17244+ struct sockaddr *awrq = &wrqu->ap_addr;
17245+ acx_device_t *adev = ndev2adev(ndev);
17246+ int result = 0;
17247+ const u8 *ap;
17248+
17249+ FN_ENTER;
17250+ if (NULL == awrq) {
17251+ result = -EFAULT;
17252+ goto end;
17253+ }
17254+ if (ARPHRD_ETHER != awrq->sa_family) {
17255+ result = -EINVAL;
17256+ goto end;
17257+ }
17258+
17259+ ap = awrq->sa_data;
17260+ acxlog_mac(L_IOCTL, "set AP=", ap, "\n");
17261+
17262+ MAC_COPY(adev->ap, ap);
17263+
17264+ /* We want to start rescan in managed or ad-hoc mode,
17265+ ** otherwise just set adev->ap.
17266+ ** "iwconfig <if> ap <mac> mode managed": we must be able
17267+ ** to set ap _first_ and _then_ set mode */
17268+ switch (adev->mode) {
17269+ case ACX_MODE_0_ADHOC:
17270+ case ACX_MODE_2_STA:
17271+ /* FIXME: if there is a convention on what zero AP means,
17272+ ** please add a comment about that. I don't know of any --vda */
17273+ if (mac_is_zero(ap)) {
17274+ /* "off" == 00:00:00:00:00:00 */
17275+ MAC_BCAST(adev->ap);
17276+ log(L_IOCTL, "Not reassociating\n");
17277+ } else {
17278+ log(L_IOCTL, "Forcing reassociation\n");
17279+ SET_BIT(adev->set_mask, GETSET_RESCAN);
17280+ }
17281+ break;
17282+ }
17283+ result = -EINPROGRESS;
17284+end:
17285+ FN_EXIT1(result);
17286+ return result;
17287+}
17288+
17289+
17290+/***********************************************************************
17291+*/
17292+static int
17293+acx_ioctl_get_ap(
17294+ struct net_device *ndev,
17295+ struct iw_request_info *info,
17296+ union iwreq_data *wrqu,
17297+ char *extra)
17298+{
17299+ struct sockaddr *awrq = &wrqu->ap_addr;
17300+ acx_device_t *adev = ndev2adev(ndev);
17301+
17302+ if (ACX_STATUS_4_ASSOCIATED == adev->status) {
17303+ /* as seen in Aironet driver, airo.c */
17304+ MAC_COPY(awrq->sa_data, adev->bssid);
17305+ } else {
17306+ MAC_ZERO(awrq->sa_data);
17307+ }
17308+ awrq->sa_family = ARPHRD_ETHER;
17309+ return OK;
17310+}
17311+
17312+
17313+/***********************************************************************
17314+** acx_ioctl_get_aplist
17315+**
17316+** Deprecated in favor of iwscan.
17317+** We simply return the list of currently available stations in range,
17318+** don't do a new scan.
17319+*/
17320+static int
17321+acx_ioctl_get_aplist(
17322+ struct net_device *ndev,
17323+ struct iw_request_info *info,
17324+ union iwreq_data *wrqu,
17325+ char *extra)
17326+{
17327+ struct iw_point *dwrq = &wrqu->data;
17328+ acx_device_t *adev = ndev2adev(ndev);
17329+ struct sockaddr *address = (struct sockaddr *) extra;
17330+ struct iw_quality qual[IW_MAX_AP];
17331+ int i, cur;
17332+ int result = OK;
17333+
17334+ FN_ENTER;
17335+
17336+ /* we have AP list only in STA mode */
17337+ if (ACX_MODE_2_STA != adev->mode) {
17338+ result = -EOPNOTSUPP;
17339+ goto end;
17340+ }
17341+
17342+ cur = 0;
17343+ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) {
17344+ struct client *bss = &adev->sta_list[i];
17345+ if (!bss->used) continue;
17346+ MAC_COPY(address[cur].sa_data, bss->bssid);
17347+ address[cur].sa_family = ARPHRD_ETHER;
17348+ qual[cur].level = bss->sir;
17349+ qual[cur].noise = bss->snr;
17350+#ifndef OLD_QUALITY
17351+ qual[cur].qual = acx_signal_determine_quality(qual[cur].level,
17352+ qual[cur].noise);
17353+#else
17354+ qual[cur].qual = (qual[cur].noise <= 100) ?
17355+ 100 - qual[cur].noise : 0;
17356+#endif
17357+ /* no scan: level/noise/qual not updated: */
17358+ qual[cur].updated = 0;
17359+ cur++;
17360+ }
17361+ if (cur) {
17362+ dwrq->flags = 1;
17363+ memcpy(extra + sizeof(struct sockaddr)*cur, &qual,
17364+ sizeof(struct iw_quality)*cur);
17365+ }
17366+ dwrq->length = cur;
17367+end:
17368+ FN_EXIT1(result);
17369+ return result;
17370+}
17371+
17372+
17373+/***********************************************************************
17374+*/
17375+static int
17376+acx_ioctl_set_scan(
17377+ struct net_device *ndev,
17378+ struct iw_request_info *info,
17379+ union iwreq_data *wrqu,
17380+ char *extra)
17381+{
17382+ acx_device_t *adev = ndev2adev(ndev);
17383+ int result;
17384+
17385+ FN_ENTER;
17386+
17387+ acx_sem_lock(adev);
17388+
17389+ /* don't start scan if device is not up yet */
17390+ if (!(adev->dev_state_mask & ACX_STATE_IFACE_UP)) {
17391+ result = -EAGAIN;
17392+ goto end_unlock;
17393+ }
17394+
17395+ /* This is NOT a rescan for new AP!
17396+ ** Do not use SET_BIT(GETSET_RESCAN); */
17397+ acx_s_cmd_start_scan(adev);
17398+ result = OK;
17399+
17400+end_unlock:
17401+ acx_sem_unlock(adev);
17402+/* end: */
17403+ FN_EXIT1(result);
17404+ return result;
17405+}
17406+
17407+
17408+/***********************************************************************
17409+** acx_s_scan_add_station
17410+*/
17411+/* helper. not sure whether it's really a _s_leeping fn */
17412+static char*
17413+acx_s_scan_add_station(
17414+ acx_device_t *adev,
17415+ char *ptr,
17416+ char *end_buf,
17417+ struct client *bss)
17418+{
17419+ struct iw_event iwe;
17420+ char *ptr_rate;
17421+
17422+ FN_ENTER;
17423+
17424+ /* MAC address has to be added first */
17425+ iwe.cmd = SIOCGIWAP;
17426+ iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
17427+ MAC_COPY(iwe.u.ap_addr.sa_data, bss->bssid);
17428+ acxlog_mac(L_IOCTL, "scan, station address: ", bss->bssid, "\n");
17429+ ptr = iwe_stream_add_event(ptr, end_buf, &iwe, IW_EV_ADDR_LEN);
17430+
17431+ /* Add ESSID */
17432+ iwe.cmd = SIOCGIWESSID;
17433+ iwe.u.data.length = bss->essid_len;
17434+ iwe.u.data.flags = 1;
17435+ log(L_IOCTL, "scan, essid: %s\n", bss->essid);
17436+ ptr = iwe_stream_add_point(ptr, end_buf, &iwe, bss->essid);
17437+
17438+ /* Add mode */
17439+ iwe.cmd = SIOCGIWMODE;
17440+ if (bss->cap_info & (WF_MGMT_CAP_ESS | WF_MGMT_CAP_IBSS)) {
17441+ if (bss->cap_info & WF_MGMT_CAP_ESS)
17442+ iwe.u.mode = IW_MODE_MASTER;
17443+ else
17444+ iwe.u.mode = IW_MODE_ADHOC;
17445+ log(L_IOCTL, "scan, mode: %d\n", iwe.u.mode);
17446+ ptr = iwe_stream_add_event(ptr, end_buf, &iwe, IW_EV_UINT_LEN);
17447+ }
17448+
17449+ /* Add frequency */
17450+ iwe.cmd = SIOCGIWFREQ;
17451+ iwe.u.freq.m = acx_channel_freq[bss->channel - 1] * 100000;
17452+ iwe.u.freq.e = 1;
17453+ log(L_IOCTL, "scan, frequency: %d\n", iwe.u.freq.m);
17454+ ptr = iwe_stream_add_event(ptr, end_buf, &iwe, IW_EV_FREQ_LEN);
17455+
17456+ /* Add link quality */
17457+ iwe.cmd = IWEVQUAL;
17458+ /* FIXME: these values should be expressed in dBm, but we don't know
17459+ * how to calibrate it yet */
17460+ iwe.u.qual.level = bss->sir;
17461+ iwe.u.qual.noise = bss->snr;
17462+#ifndef OLD_QUALITY
17463+ iwe.u.qual.qual = acx_signal_determine_quality(iwe.u.qual.level,
17464+ iwe.u.qual.noise);
17465+#else
17466+ iwe.u.qual.qual = (iwe.u.qual.noise <= 100) ?
17467+ 100 - iwe.u.qual.noise : 0;
17468+#endif
17469+ iwe.u.qual.updated = 7;
17470+ log(L_IOCTL, "scan, link quality: %d/%d/%d\n",
17471+ iwe.u.qual.level, iwe.u.qual.noise, iwe.u.qual.qual);
17472+ ptr = iwe_stream_add_event(ptr, end_buf, &iwe, IW_EV_QUAL_LEN);
17473+
17474+ /* Add encryption */
17475+ iwe.cmd = SIOCGIWENCODE;
17476+ if (bss->cap_info & WF_MGMT_CAP_PRIVACY)
17477+ iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
17478+ else
17479+ iwe.u.data.flags = IW_ENCODE_DISABLED;
17480+ iwe.u.data.length = 0;
17481+ log(L_IOCTL, "scan, encryption flags: %X\n", iwe.u.data.flags);
17482+ ptr = iwe_stream_add_point(ptr, end_buf, &iwe, bss->essid);
17483+
17484+ /* add rates */
17485+ iwe.cmd = SIOCGIWRATE;
17486+ iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
17487+ ptr_rate = ptr + IW_EV_LCP_LEN;
17488+
17489+ {
17490+ u16 rate = bss->rate_cap;
17491+ const u8* p = acx_bitpos2ratebyte;
17492+ while (rate) {
17493+ if (rate & 1) {
17494+ iwe.u.bitrate.value = *p * 500000; /* units of 500kb/s */
17495+ log(L_IOCTL, "scan, rate: %d\n", iwe.u.bitrate.value);
17496+ ptr_rate = iwe_stream_add_value(ptr, ptr_rate, end_buf,
17497+ &iwe, IW_EV_PARAM_LEN);
17498+ }
17499+ rate >>= 1;
17500+ p++;
17501+ }}
17502+
17503+ if ((ptr_rate - ptr) > (ptrdiff_t)IW_EV_LCP_LEN)
17504+ ptr = ptr_rate;
17505+
17506+ /* drop remaining station data items for now */
17507+
17508+ FN_EXIT0;
17509+ return ptr;
17510+}
17511+
17512+
17513+/***********************************************************************
17514+ * acx_ioctl_get_scan
17515+ */
17516+static int
17517+acx_ioctl_get_scan(
17518+ struct net_device *ndev,
17519+ struct iw_request_info *info,
17520+ union iwreq_data *wrqu,
17521+ char *extra)
17522+{
17523+ struct iw_point *dwrq = &wrqu->data;
17524+ acx_device_t *adev = ndev2adev(ndev);
17525+ char *ptr = extra;
17526+ int i;
17527+ int result = OK;
17528+
17529+ FN_ENTER;
17530+
17531+ acx_sem_lock(adev);
17532+
17533+ /* no scan available if device is not up yet */
17534+ if (!(adev->dev_state_mask & ACX_STATE_IFACE_UP)) {
17535+ log(L_IOCTL, "iface not up yet\n");
17536+ result = -EAGAIN;
17537+ goto end_unlock;
17538+ }
17539+
17540+#ifdef ENODATA_TO_BE_USED_AFTER_SCAN_ERROR_ONLY
17541+ if (adev->bss_table_count == 0) {
17542+ /* no stations found */
17543+ result = -ENODATA;
17544+ goto end_unlock;
17545+ }
17546+#endif
17547+
17548+ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) {
17549+ struct client *bss = &adev->sta_list[i];
17550+ if (!bss->used) continue;
17551+ ptr = acx_s_scan_add_station(adev, ptr,
17552+ extra + IW_SCAN_MAX_DATA, bss);
17553+ }
17554+ dwrq->length = ptr - extra;
17555+ dwrq->flags = 0;
17556+
17557+end_unlock:
17558+ acx_sem_unlock(adev);
17559+/* end: */
17560+ FN_EXIT1(result);
17561+ return result;
17562+}
17563+
17564+
17565+/***********************************************************************
17566+** acx_ioctl_set_essid
17567+*/
17568+static int
17569+acx_ioctl_set_essid(
17570+ struct net_device *ndev,
17571+ struct iw_request_info *info,
17572+ union iwreq_data *wrqu,
17573+ char *extra)
17574+{
17575+ struct iw_point *dwrq = &wrqu->essid;
17576+ acx_device_t *adev = ndev2adev(ndev);
17577+ int len = dwrq->length;
17578+ int result;
17579+
17580+ FN_ENTER;
17581+
17582+ if (len < 0) {
17583+ result = -EINVAL;
17584+ goto end;
17585+ }
17586+
17587+ log(L_IOCTL, "set ESSID '%*s', length %d, flags 0x%04X\n",
17588+ len, extra, len, dwrq->flags);
17589+
17590+#if WIRELESS_EXT >= 21
17591+ /* WE 21 gives real ESSID strlen, not +1 (trailing zero):
17592+ * see LKML "[patch] drivers/net/wireless: correct reported ssid lengths" */
17593+ len += 1;
17594+#endif
17595+
17596+ acx_sem_lock(adev);
17597+
17598+ /* ESSID disabled? */
17599+ if (0 == dwrq->flags) {
17600+ adev->essid_active = 0;
17601+
17602+ } else {
17603+ if (len > IW_ESSID_MAX_SIZE) {
17604+ result = -E2BIG;
17605+ goto end_unlock;
17606+ }
17607+
17608+ if (len >= sizeof(adev->essid))
17609+ len = sizeof(adev->essid) - 1;
17610+ memcpy(adev->essid, extra, len);
17611+ adev->essid[len] = '\0';
17612+ /* Paranoia: just in case there is a '\0'... */
17613+ adev->essid_len = strlen(adev->essid);
17614+ adev->essid_active = 1;
17615+ }
17616+
17617+ SET_BIT(adev->set_mask, GETSET_RESCAN);
17618+
17619+ result = -EINPROGRESS;
17620+
17621+end_unlock:
17622+ acx_sem_unlock(adev);
17623+end:
17624+ FN_EXIT1(result);
17625+ return result;
17626+}
17627+
17628+
17629+/***********************************************************************
17630+*/
17631+static int
17632+acx_ioctl_get_essid(
17633+ struct net_device *ndev,
17634+ struct iw_request_info *info,
17635+ union iwreq_data *wrqu,
17636+ char *extra)
17637+{
17638+ struct iw_point *dwrq = &wrqu->essid;
17639+ acx_device_t *adev = ndev2adev(ndev);
17640+
17641+ dwrq->flags = adev->essid_active;
17642+ if (adev->essid_active) {
17643+ memcpy(extra, adev->essid, adev->essid_len);
17644+ extra[adev->essid_len] = '\0';
17645+ dwrq->length = adev->essid_len + 1;
17646+ dwrq->flags = 1;
17647+ }
17648+ return OK;
17649+}
17650+
17651+
17652+/***********************************************************************
17653+** acx_l_update_client_rates
17654+*/
17655+static void
17656+acx_l_update_client_rates(acx_device_t *adev, u16 rate)
17657+{
17658+ int i;
17659+ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) {
17660+ client_t *clt = &adev->sta_list[i];
17661+ if (!clt->used) continue;
17662+ clt->rate_cfg = (clt->rate_cap & rate);
17663+ if (!clt->rate_cfg) {
17664+ /* no compatible rates left: kick client */
17665+ acxlog_mac(L_ASSOC, "client ",clt->address," kicked: "
17666+ "rates are not compatible anymore\n");
17667+ acx_l_sta_list_del(adev, clt);
17668+ continue;
17669+ }
17670+ clt->rate_cur &= clt->rate_cfg;
17671+ if (!clt->rate_cur) {
17672+ /* current rate become invalid, choose a valid one */
17673+ clt->rate_cur = 1 << lowest_bit(clt->rate_cfg);
17674+ }
17675+ if (IS_ACX100(adev))
17676+ clt->rate_100 = acx_bitpos2rate100[highest_bit(clt->rate_cur)];
17677+ clt->fallback_count = clt->stepup_count = 0;
17678+ clt->ignore_count = 16;
17679+ }
17680+ switch (adev->mode) {
17681+ case ACX_MODE_2_STA:
17682+ if (adev->ap_client && !adev->ap_client->used) {
17683+ /* Owwww... we kicked our AP!! :) */
17684+ SET_BIT(adev->set_mask, GETSET_RESCAN);
17685+ }
17686+ }
17687+}
17688+
17689+
17690+/***********************************************************************
17691+*/
17692+/* maps bits from acx111 rate to rate in Mbits */
17693+static const unsigned int
17694+acx111_rate_tbl[] = {
17695+ 1000000, /* 0 */
17696+ 2000000, /* 1 */
17697+ 5500000, /* 2 */
17698+ 6000000, /* 3 */
17699+ 9000000, /* 4 */
17700+ 11000000, /* 5 */
17701+ 12000000, /* 6 */
17702+ 18000000, /* 7 */
17703+ 22000000, /* 8 */
17704+ 24000000, /* 9 */
17705+ 36000000, /* 10 */
17706+ 48000000, /* 11 */
17707+ 54000000, /* 12 */
17708+ 500000, /* 13, should not happen */
17709+ 500000, /* 14, should not happen */
17710+ 500000, /* 15, should not happen */
17711+};
17712+
17713+/***********************************************************************
17714+ * acx_ioctl_set_rate
17715+ */
17716+static int
17717+acx_ioctl_set_rate(
17718+ struct net_device *ndev,
17719+ struct iw_request_info *info,
17720+ union iwreq_data *wrqu,
17721+ char *extra)
17722+{
17723+ struct iw_param *vwrq = &wrqu->param;
17724+ acx_device_t *adev = ndev2adev(ndev);
17725+ u16 txrate_cfg = 1;
17726+ unsigned long flags;
17727+ int autorate;
17728+ int result = -EINVAL;
17729+
17730+ FN_ENTER;
17731+ log(L_IOCTL, "rate %d fixed 0x%X disabled 0x%X flags 0x%X\n",
17732+ vwrq->value, vwrq->fixed, vwrq->disabled, vwrq->flags);
17733+
17734+ if ((0 == vwrq->fixed) || (1 == vwrq->fixed)) {
17735+ int i = VEC_SIZE(acx111_rate_tbl)-1;
17736+ if (vwrq->value == -1)
17737+ /* "iwconfig rate auto" --> choose highest */
17738+ vwrq->value = IS_ACX100(adev) ? 22000000 : 54000000;
17739+ while (i >= 0) {
17740+ if (vwrq->value == acx111_rate_tbl[i]) {
17741+ txrate_cfg <<= i;
17742+ i = 0;
17743+ break;
17744+ }
17745+ i--;
17746+ }
17747+ if (i == -1) { /* no matching rate */
17748+ result = -EINVAL;
17749+ goto end;
17750+ }
17751+ } else { /* rate N, N<1000 (driver specific): we don't use this */
17752+ result = -EOPNOTSUPP;
17753+ goto end;
17754+ }
17755+ /* now: only one bit is set in txrate_cfg, corresponding to
17756+ ** indicated rate */
17757+
17758+ autorate = (vwrq->fixed == 0) && (RATE111_1 != txrate_cfg);
17759+ if (autorate) {
17760+ /* convert 00100000 -> 00111111 */
17761+ txrate_cfg = (txrate_cfg<<1)-1;
17762+ }
17763+
17764+ if (IS_ACX100(adev)) {
17765+ txrate_cfg &= RATE111_ACX100_COMPAT;
17766+ if (!txrate_cfg) {
17767+ result = -ENOTSUPP; /* rate is not supported by acx100 */
17768+ goto end;
17769+ }
17770+ }
17771+
17772+ acx_sem_lock(adev);
17773+ acx_lock(adev, flags);
17774+
17775+ adev->rate_auto = autorate;
17776+ adev->rate_oper = txrate_cfg;
17777+ adev->rate_basic = txrate_cfg;
17778+ /* only do that in auto mode, non-auto will be able to use
17779+ * one specific Tx rate only anyway */
17780+ if (autorate) {
17781+ /* only use 802.11b base rates, for standard 802.11b H/W
17782+ * compatibility */
17783+ adev->rate_basic &= RATE111_80211B_COMPAT;
17784+ }
17785+ adev->rate_bcast = 1 << lowest_bit(txrate_cfg);
17786+ if (IS_ACX100(adev))
17787+ adev->rate_bcast100 = acx_rate111to100(adev->rate_bcast);
17788+ acx_l_update_ratevector(adev);
17789+ acx_l_update_client_rates(adev, txrate_cfg);
17790+
17791+ /* Do/don't do tx rate fallback; beacon contents and rate */
17792+ SET_BIT(adev->set_mask, SET_RATE_FALLBACK|SET_TEMPLATES);
17793+ result = -EINPROGRESS;
17794+
17795+ acx_unlock(adev, flags);
17796+ acx_sem_unlock(adev);
17797+end:
17798+ FN_EXIT1(result);
17799+ return result;
17800+}
17801+
17802+
17803+/***********************************************************************
17804+** acx_ioctl_get_rate
17805+*/
17806+static int
17807+acx_ioctl_get_rate(
17808+ struct net_device *ndev,
17809+ struct iw_request_info *info,
17810+ union iwreq_data *wrqu,
17811+ char *extra)
17812+{
17813+ struct iw_param *vwrq = &wrqu->param;
17814+ acx_device_t *adev = ndev2adev(ndev);
17815+ unsigned long flags;
17816+ u16 rate;
17817+
17818+ acx_lock(adev, flags);
17819+ rate = adev->rate_oper;
17820+ if (adev->ap_client)
17821+ rate = adev->ap_client->rate_cur;
17822+ vwrq->value = acx111_rate_tbl[highest_bit(rate)];
17823+ vwrq->fixed = !adev->rate_auto;
17824+ vwrq->disabled = 0;
17825+ acx_unlock(adev, flags);
17826+
17827+ return OK;
17828+}
17829+
17830+static int
17831+acx_ioctl_set_rts(
17832+ struct net_device *ndev,
17833+ struct iw_request_info *info,
17834+ union iwreq_data *wrqu,
17835+ char *extra)
17836+{
17837+ struct iw_param *vwrq = &wrqu->rts;
17838+ acx_device_t *adev = ndev2adev(ndev);
17839+ int val = vwrq->value;
17840+
17841+ if (vwrq->disabled)
17842+ val = 2312;
17843+ if ((val < 0) || (val > 2312))
17844+ return -EINVAL;
17845+
17846+ adev->rts_threshold = val;
17847+ return OK;
17848+}
17849+
17850+static inline int
17851+acx_ioctl_get_rts(
17852+ struct net_device *ndev,
17853+ struct iw_request_info *info,
17854+ union iwreq_data *wrqu,
17855+ char *extra)
17856+{
17857+ struct iw_param *vwrq = &wrqu->rts;
17858+ acx_device_t *adev = ndev2adev(ndev);
17859+
17860+ vwrq->value = adev->rts_threshold;
17861+ vwrq->disabled = (vwrq->value >= 2312);
17862+ vwrq->fixed = 1;
17863+ return OK;
17864+}
17865+
17866+
17867+#if ACX_FRAGMENTATION
17868+static int
17869+acx_ioctl_set_frag(
17870+ struct net_device *ndev,
17871+ struct iw_request_info *info,
17872+ struct iw_param *vwrq,
17873+ char *extra)
17874+{
17875+ acx_device_t *adev = ndev2adev(ndev);
17876+ int val = vwrq->value;
17877+
17878+ if (vwrq->disabled)
17879+ val = 32767;
17880+ else
17881+ if ((val < 256) || (val > 2347))
17882+ return -EINVAL;
17883+
17884+ adev->frag_threshold = val;
17885+ return OK;
17886+}
17887+
17888+static inline int
17889+acx_ioctl_get_frag(
17890+ struct net_device *ndev,
17891+ struct iw_request_info *info,
17892+ union iwreq_data *wrqu,
17893+ char *extra)
17894+{
17895+ struct iw_param *vwrq = &wrqu->frag;
17896+ acx_device_t *adev = ndev2adev(ndev);
17897+
17898+ vwrq->value = adev->frag_threshold;
17899+ vwrq->disabled = (vwrq->value >= 2347);
17900+ vwrq->fixed = 1;
17901+ return OK;
17902+}
17903+#endif
17904+
17905+
17906+/***********************************************************************
17907+** acx_ioctl_set_encode
17908+*/
17909+static int
17910+acx_ioctl_set_encode(
17911+ struct net_device *ndev,
17912+ struct iw_request_info *info,
17913+ union iwreq_data *wrqu,
17914+ char *extra)
17915+{
17916+ struct iw_point *dwrq = &wrqu->encoding;
17917+ acx_device_t *adev = ndev2adev(ndev);
17918+ int index;
17919+ int result;
17920+
17921+ FN_ENTER;
17922+
17923+ log(L_IOCTL, "set encoding flags=0x%04X, size=%d, key: %s\n",
17924+ dwrq->flags, dwrq->length, extra ? "set" : "No key");
17925+
17926+ acx_sem_lock(adev);
17927+
17928+ index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
17929+
17930+ if (dwrq->length > 0) {
17931+ /* if index is 0 or invalid, use default key */
17932+ if ((index < 0) || (index > 3))
17933+ index = (int)adev->wep_current_index;
17934+
17935+ if (0 == (dwrq->flags & IW_ENCODE_NOKEY)) {
17936+ if (dwrq->length > 29)
17937+ dwrq->length = 29; /* restrict it */
17938+
17939+ if (dwrq->length > 13) {
17940+ /* 29*8 == 232, WEP256 */
17941+ adev->wep_keys[index].size = 29;
17942+ } else if (dwrq->length > 5) {
17943+ /* 13*8 == 104bit, WEP128 */
17944+ adev->wep_keys[index].size = 13;
17945+ } else if (dwrq->length > 0) {
17946+ /* 5*8 == 40bit, WEP64 */
17947+ adev->wep_keys[index].size = 5;
17948+ } else {
17949+ /* disable key */
17950+ adev->wep_keys[index].size = 0;
17951+ }
17952+
17953+ memset(adev->wep_keys[index].key, 0,
17954+ sizeof(adev->wep_keys[index].key));
17955+ memcpy(adev->wep_keys[index].key, extra, dwrq->length);
17956+ }
17957+ } else {
17958+ /* set transmit key */
17959+ if ((index >= 0) && (index <= 3))
17960+ adev->wep_current_index = index;
17961+ else if (0 == (dwrq->flags & IW_ENCODE_MODE)) {
17962+ /* complain if we were not just setting
17963+ * the key mode */
17964+ result = -EINVAL;
17965+ goto end_unlock;
17966+ }
17967+ }
17968+
17969+ adev->wep_enabled = !(dwrq->flags & IW_ENCODE_DISABLED);
17970+
17971+ if (dwrq->flags & IW_ENCODE_OPEN) {
17972+ adev->auth_alg = WLAN_AUTH_ALG_OPENSYSTEM;
17973+ adev->wep_restricted = 0;
17974+
17975+ } else if (dwrq->flags & IW_ENCODE_RESTRICTED) {
17976+ adev->auth_alg = WLAN_AUTH_ALG_SHAREDKEY;
17977+ adev->wep_restricted = 1;
17978+ }
17979+
17980+ /* set flag to make sure the card WEP settings get updated */
17981+ SET_BIT(adev->set_mask, GETSET_WEP);
17982+
17983+ log(L_IOCTL, "len=%d, key at 0x%p, flags=0x%X\n",
17984+ dwrq->length, extra, dwrq->flags);
17985+
17986+ for (index = 0; index <= 3; index++) {
17987+ if (adev->wep_keys[index].size) {
17988+ log(L_IOCTL, "index=%d, size=%d, key at 0x%p\n",
17989+ adev->wep_keys[index].index,
17990+ (int) adev->wep_keys[index].size,
17991+ adev->wep_keys[index].key);
17992+ }
17993+ }
17994+ result = -EINPROGRESS;
17995+
17996+end_unlock:
17997+ acx_sem_unlock(adev);
17998+
17999+ FN_EXIT1(result);
18000+ return result;
18001+}
18002+
18003+
18004+/***********************************************************************
18005+** acx_ioctl_get_encode
18006+*/
18007+static int
18008+acx_ioctl_get_encode(
18009+ struct net_device *ndev,
18010+ struct iw_request_info *info,
18011+ union iwreq_data *wrqu,
18012+ char *extra)
18013+{
18014+ struct iw_point *dwrq = &wrqu->encoding;
18015+ acx_device_t *adev = ndev2adev(ndev);
18016+ int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
18017+
18018+ FN_ENTER;
18019+
18020+ if (adev->wep_enabled == 0) {
18021+ dwrq->flags = IW_ENCODE_DISABLED;
18022+ } else {
18023+ if ((index < 0) || (index > 3))
18024+ index = (int)adev->wep_current_index;
18025+
18026+ dwrq->flags = (adev->wep_restricted == 1) ?
18027+ IW_ENCODE_RESTRICTED : IW_ENCODE_OPEN;
18028+ dwrq->length = adev->wep_keys[index].size;
18029+
18030+ memcpy(extra, adev->wep_keys[index].key,
18031+ adev->wep_keys[index].size);
18032+ }
18033+
18034+ /* set the current index */
18035+ SET_BIT(dwrq->flags, index + 1);
18036+
18037+ log(L_IOCTL, "len=%d, key=%p, flags=0x%X\n",
18038+ dwrq->length, dwrq->pointer,
18039+ dwrq->flags);
18040+
18041+ FN_EXIT1(OK);
18042+ return OK;
18043+}
18044+
18045+
18046+/***********************************************************************
18047+*/
18048+static int
18049+acx_ioctl_set_power(
18050+ struct net_device *ndev,
18051+ struct iw_request_info *info,
18052+ union iwreq_data *wrqu,
18053+ char *extra)
18054+{
18055+ struct iw_param *vwrq = &wrqu->power;
18056+ acx_device_t *adev = ndev2adev(ndev);
18057+ int result = -EINPROGRESS;
18058+
18059+ FN_ENTER;
18060+
18061+ log(L_IOCTL, "set 802.11 powersave flags=0x%04X\n", vwrq->flags);
18062+
18063+ acx_sem_lock(adev);
18064+
18065+ if (vwrq->disabled) {
18066+ CLEAR_BIT(adev->ps_wakeup_cfg, PS_CFG_ENABLE);
18067+ SET_BIT(adev->set_mask, GETSET_POWER_80211);
18068+ goto end;
18069+ }
18070+ if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
18071+ u16 ps_timeout = (vwrq->value * 1024) / 1000;
18072+
18073+ if (ps_timeout > 255)
18074+ ps_timeout = 255;
18075+ log(L_IOCTL, "setting PS timeout value to %d time units "
18076+ "due to %dus\n", ps_timeout, vwrq->value);
18077+ adev->ps_hangover_period = ps_timeout;
18078+ } else if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_PERIOD) {
18079+ u16 ps_periods = vwrq->value / 1000000;
18080+
18081+ if (ps_periods > 255)
18082+ ps_periods = 255;
18083+ log(L_IOCTL, "setting PS period value to %d periods "
18084+ "due to %dus\n", ps_periods, vwrq->value);
18085+ adev->ps_listen_interval = ps_periods;
18086+ CLEAR_BIT(adev->ps_wakeup_cfg, PS_CFG_WAKEUP_MODE_MASK);
18087+ SET_BIT(adev->ps_wakeup_cfg, PS_CFG_WAKEUP_EACH_ITVL);
18088+ }
18089+
18090+ switch (vwrq->flags & IW_POWER_MODE) {
18091+ /* FIXME: are we doing the right thing here? */
18092+ case IW_POWER_UNICAST_R:
18093+ CLEAR_BIT(adev->ps_options, PS_OPT_STILL_RCV_BCASTS);
18094+ break;
18095+ case IW_POWER_MULTICAST_R:
18096+ SET_BIT(adev->ps_options, PS_OPT_STILL_RCV_BCASTS);
18097+ break;
18098+ case IW_POWER_ALL_R:
18099+ SET_BIT(adev->ps_options, PS_OPT_STILL_RCV_BCASTS);
18100+ break;
18101+ case IW_POWER_ON:
18102+ break;
18103+ default:
18104+ log(L_IOCTL, "unknown PS mode\n");
18105+ result = -EINVAL;
18106+ goto end;
18107+ }
18108+
18109+ SET_BIT(adev->ps_wakeup_cfg, PS_CFG_ENABLE);
18110+ SET_BIT(adev->set_mask, GETSET_POWER_80211);
18111+end:
18112+ acx_sem_unlock(adev);
18113+
18114+ FN_EXIT1(result);
18115+ return result;
18116+}
18117+
18118+
18119+/***********************************************************************
18120+*/
18121+static int
18122+acx_ioctl_get_power(
18123+ struct net_device *ndev,
18124+ struct iw_request_info *info,
18125+ union iwreq_data *wrqu,
18126+ char *extra)
18127+{
18128+ struct iw_param *vwrq = &wrqu->power;
18129+ acx_device_t *adev = ndev2adev(ndev);
18130+
18131+ FN_ENTER;
18132+
18133+ log(L_IOCTL, "Get 802.11 Power Save flags = 0x%04X\n", vwrq->flags);
18134+ vwrq->disabled = ((adev->ps_wakeup_cfg & PS_CFG_ENABLE) == 0);
18135+ if (vwrq->disabled)
18136+ goto end;
18137+
18138+ if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
18139+ vwrq->value = adev->ps_hangover_period * 1000 / 1024;
18140+ vwrq->flags = IW_POWER_TIMEOUT;
18141+ } else {
18142+ vwrq->value = adev->ps_listen_interval * 1000000;
18143+ vwrq->flags = IW_POWER_PERIOD|IW_POWER_RELATIVE;
18144+ }
18145+ if (adev->ps_options & PS_OPT_STILL_RCV_BCASTS)
18146+ SET_BIT(vwrq->flags, IW_POWER_ALL_R);
18147+ else
18148+ SET_BIT(vwrq->flags, IW_POWER_UNICAST_R);
18149+end:
18150+ FN_EXIT1(OK);
18151+ return OK;
18152+}
18153+
18154+
18155+/***********************************************************************
18156+** acx_ioctl_get_txpow
18157+*/
18158+static inline int
18159+acx_ioctl_get_txpow(
18160+ struct net_device *ndev,
18161+ struct iw_request_info *info,
18162+ union iwreq_data *wrqu,
18163+ char *extra)
18164+{
18165+ struct iw_param *vwrq = &wrqu->power;
18166+ acx_device_t *adev = ndev2adev(ndev);
18167+
18168+ FN_ENTER;
18169+
18170+ vwrq->flags = IW_TXPOW_DBM;
18171+ vwrq->disabled = 0;
18172+ vwrq->fixed = 1;
18173+ vwrq->value = adev->tx_level_dbm;
18174+
18175+ log(L_IOCTL, "get txpower:%d dBm\n", adev->tx_level_dbm);
18176+
18177+ FN_EXIT1(OK);
18178+ return OK;
18179+}
18180+
18181+
18182+/***********************************************************************
18183+** acx_ioctl_set_txpow
18184+*/
18185+static int
18186+acx_ioctl_set_txpow(
18187+ struct net_device *ndev,
18188+ struct iw_request_info *info,
18189+ union iwreq_data *wrqu,
18190+ char *extra)
18191+{
18192+ struct iw_param *vwrq = &wrqu->power;
18193+ acx_device_t *adev = ndev2adev(ndev);
18194+ int result;
18195+
18196+ FN_ENTER;
18197+
18198+ log(L_IOCTL, "set txpower:%d, disabled:%d, flags:0x%04X\n",
18199+ vwrq->value, vwrq->disabled, vwrq->flags);
18200+
18201+ acx_sem_lock(adev);
18202+
18203+ if (vwrq->disabled != adev->tx_disabled) {
18204+ SET_BIT(adev->set_mask, GETSET_TX);
18205+ }
18206+
18207+ adev->tx_disabled = vwrq->disabled;
18208+ if (vwrq->value == -1) {
18209+ if (vwrq->disabled) {
18210+ adev->tx_level_dbm = 0;
18211+ log(L_IOCTL, "disable radio tx\n");
18212+ } else {
18213+ /* adev->tx_level_auto = 1; */
18214+ log(L_IOCTL, "set tx power auto (NIY)\n");
18215+ }
18216+ } else {
18217+ adev->tx_level_dbm = vwrq->value <= 20 ? vwrq->value : 20;
18218+ /* adev->tx_level_auto = 0; */
18219+ log(L_IOCTL, "set txpower=%d dBm\n", adev->tx_level_dbm);
18220+ }
18221+ SET_BIT(adev->set_mask, GETSET_TXPOWER);
18222+
18223+ result = -EINPROGRESS;
18224+
18225+ acx_sem_unlock(adev);
18226+
18227+ FN_EXIT1(result);
18228+ return result;
18229+}
18230+
18231+
18232+/***********************************************************************
18233+** acx_ioctl_get_range
18234+*/
18235+static int
18236+acx_ioctl_get_range(
18237+ struct net_device *ndev,
18238+ struct iw_request_info *info,
18239+ union iwreq_data *wrqu,
18240+ char *extra)
18241+{
18242+ struct iw_point *dwrq = &wrqu->data;
18243+ struct iw_range *range = (struct iw_range *)extra;
18244+ acx_device_t *adev = ndev2adev(ndev);
18245+ int i,n;
18246+
18247+ FN_ENTER;
18248+
18249+ if (!dwrq->pointer)
18250+ goto end;
18251+
18252+ dwrq->length = sizeof(struct iw_range);
18253+ memset(range, 0, sizeof(struct iw_range));
18254+ n = 0;
18255+ for (i = 1; i <= 14; i++) {
18256+ if (adev->reg_dom_chanmask & (1 << (i - 1))) {
18257+ range->freq[n].i = i;
18258+ range->freq[n].m = acx_channel_freq[i - 1] * 100000;
18259+ range->freq[n].e = 1; /* units are MHz */
18260+ n++;
18261+ }
18262+ }
18263+ range->num_channels = n;
18264+ range->num_frequency = n;
18265+
18266+ range->min_rts = 0;
18267+ range->max_rts = 2312;
18268+
18269+#if ACX_FRAGMENTATION
18270+ range->min_frag = 256;
18271+ range->max_frag = 2312;
18272+#endif
18273+
18274+ range->encoding_size[0] = 5;
18275+ range->encoding_size[1] = 13;
18276+ range->encoding_size[2] = 29;
18277+ range->num_encoding_sizes = 3;
18278+ range->max_encoding_tokens = 4;
18279+
18280+ range->min_pmp = 0;
18281+ range->max_pmp = 5000000;
18282+ range->min_pmt = 0;
18283+ range->max_pmt = 65535 * 1000;
18284+ range->pmp_flags = IW_POWER_PERIOD;
18285+ range->pmt_flags = IW_POWER_TIMEOUT;
18286+ range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_ALL_R;
18287+
18288+ if (IS_ACX100(adev)) { /* ACX100 has direct radio programming - arbitrary levels, so offer a lot */
18289+ for (i = 0; i <= IW_MAX_TXPOWER - 1; i++)
18290+ range->txpower[i] = 20 * i / (IW_MAX_TXPOWER - 1);
18291+ range->num_txpower = IW_MAX_TXPOWER;
18292+ range->txpower_capa = IW_TXPOW_DBM;
18293+ }
18294+ else {
18295+ int count = min(IW_MAX_TXPOWER, (int)adev->cfgopt_power_levels.len);
18296+ for (i = 0; i <= count; i++)
18297+ range->txpower[i] = adev->cfgopt_power_levels.list[i];
18298+ range->num_txpower = count;
18299+ /* this list is given in mW */
18300+ range->txpower_capa = IW_TXPOW_MWATT;
18301+ }
18302+
18303+ range->we_version_compiled = WIRELESS_EXT;
18304+ range->we_version_source = 0x9;
18305+
18306+ range->retry_capa = IW_RETRY_LIMIT;
18307+ range->retry_flags = IW_RETRY_LIMIT;
18308+ range->min_retry = 1;
18309+ range->max_retry = 255;
18310+
18311+ range->r_time_flags = IW_RETRY_LIFETIME;
18312+ range->min_r_time = 0;
18313+ /* FIXME: lifetime ranges and orders of magnitude are strange?? */
18314+ range->max_r_time = 65535;
18315+
18316+ if (IS_USB(adev))
18317+ range->sensitivity = 0;
18318+ else if (IS_ACX111(adev))
18319+ range->sensitivity = 3;
18320+ else
18321+ range->sensitivity = 255;
18322+
18323+ for (i=0; i < adev->rate_supported_len; i++) {
18324+ range->bitrate[i] = (adev->rate_supported[i] & ~0x80) * 500000;
18325+ /* never happens, but keep it, to be safe: */
18326+ if (range->bitrate[i] == 0)
18327+ break;
18328+ }
18329+ range->num_bitrates = i;
18330+
18331+ range->max_qual.qual = 100;
18332+ range->max_qual.level = 100;
18333+ range->max_qual.noise = 100;
18334+ /* TODO: better values */
18335+ range->avg_qual.qual = 90;
18336+ range->avg_qual.level = 80;
18337+ range->avg_qual.noise = 2;
18338+
18339+end:
18340+ FN_EXIT1(OK);
18341+ return OK;
18342+}
18343+
18344+
18345+/***********************************************************************
18346+** Private functions
18347+*/
18348+
18349+/***********************************************************************
18350+** acx_ioctl_get_nick
18351+*/
18352+static inline int
18353+acx_ioctl_get_nick(
18354+ struct net_device *ndev,
18355+ struct iw_request_info *info,
18356+ union iwreq_data *wrqu,
18357+ char *extra)
18358+{
18359+ struct iw_point *dwrq = &wrqu->data;
18360+ acx_device_t *adev = ndev2adev(ndev);
18361+
18362+ strcpy(extra, adev->nick);
18363+ dwrq->length = strlen(extra) + 1;
18364+
18365+ return OK;
18366+}
18367+
18368+
18369+/***********************************************************************
18370+** acx_ioctl_set_nick
18371+*/
18372+static int
18373+acx_ioctl_set_nick(
18374+ struct net_device *ndev,
18375+ struct iw_request_info *info,
18376+ union iwreq_data *wrqu,
18377+ char *extra)
18378+{
18379+ struct iw_point *dwrq = &wrqu->data;
18380+ acx_device_t *adev = ndev2adev(ndev);
18381+ int result;
18382+
18383+ FN_ENTER;
18384+
18385+ acx_sem_lock(adev);
18386+
18387+ if (dwrq->length > IW_ESSID_MAX_SIZE + 1) {
18388+ result = -E2BIG;
18389+ goto end_unlock;
18390+ }
18391+
18392+ /* extra includes trailing \0, so it's ok */
18393+ strcpy(adev->nick, extra);
18394+ result = OK;
18395+
18396+end_unlock:
18397+ acx_sem_unlock(adev);
18398+
18399+ FN_EXIT1(result);
18400+ return result;
18401+}
18402+
18403+
18404+/***********************************************************************
18405+** acx_ioctl_get_retry
18406+*/
18407+static int
18408+acx_ioctl_get_retry(
18409+ struct net_device *ndev,
18410+ struct iw_request_info *info,
18411+ union iwreq_data *wrqu,
18412+ char *extra)
18413+{
18414+ struct iw_param *vwrq = &wrqu->retry;
18415+ acx_device_t *adev = ndev2adev(ndev);
18416+ unsigned int type = vwrq->flags & IW_RETRY_TYPE;
18417+ unsigned int modifier = vwrq->flags & IW_RETRY_MODIFIER;
18418+ int result;
18419+
18420+ FN_ENTER;
18421+
18422+ acx_sem_lock(adev);
18423+
18424+ /* return the short retry number by default */
18425+ if (type == IW_RETRY_LIFETIME) {
18426+ vwrq->flags = IW_RETRY_LIFETIME;
18427+ vwrq->value = adev->msdu_lifetime;
18428+ } else if (modifier == IW_RETRY_MAX) {
18429+ vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
18430+ vwrq->value = adev->long_retry;
18431+ } else {
18432+ vwrq->flags = IW_RETRY_LIMIT;
18433+ if (adev->long_retry != adev->short_retry)
18434+ SET_BIT(vwrq->flags, IW_RETRY_MIN);
18435+ vwrq->value = adev->short_retry;
18436+ }
18437+
18438+ /* can't be disabled */
18439+ vwrq->disabled = (u8)0;
18440+ result = OK;
18441+
18442+ acx_sem_unlock(adev);
18443+
18444+ FN_EXIT1(result);
18445+ return result;
18446+}
18447+
18448+
18449+/***********************************************************************
18450+** acx_ioctl_set_retry
18451+*/
18452+static int
18453+acx_ioctl_set_retry(
18454+ struct net_device *ndev,
18455+ struct iw_request_info *info,
18456+ union iwreq_data *wrqu,
18457+ char *extra)
18458+{
18459+ struct iw_param *vwrq = &wrqu->retry;
18460+ acx_device_t *adev = ndev2adev(ndev);
18461+ int result;
18462+
18463+ FN_ENTER;
18464+
18465+ if (!vwrq) {
18466+ result = -EFAULT;
18467+ goto end;
18468+ }
18469+ if (vwrq->disabled) {
18470+ result = -EINVAL;
18471+ goto end;
18472+ }
18473+
18474+ acx_sem_lock(adev);
18475+
18476+ result = -EINVAL;
18477+ if (IW_RETRY_LIMIT == (vwrq->flags & IW_RETRY_TYPE)) {
18478+ printk("old retry limits: short %d long %d\n",
18479+ adev->short_retry, adev->long_retry);
18480+ if (vwrq->flags & IW_RETRY_MAX) {
18481+ adev->long_retry = vwrq->value;
18482+ } else if (vwrq->flags & IW_RETRY_MIN) {
18483+ adev->short_retry = vwrq->value;
18484+ } else {
18485+ /* no modifier: set both */
18486+ adev->long_retry = vwrq->value;
18487+ adev->short_retry = vwrq->value;
18488+ }
18489+ printk("new retry limits: short %d long %d\n",
18490+ adev->short_retry, adev->long_retry);
18491+ SET_BIT(adev->set_mask, GETSET_RETRY);
18492+ result = -EINPROGRESS;
18493+ }
18494+ else if (vwrq->flags & IW_RETRY_LIFETIME) {
18495+ adev->msdu_lifetime = vwrq->value;
18496+ printk("new MSDU lifetime: %d\n", adev->msdu_lifetime);
18497+ SET_BIT(adev->set_mask, SET_MSDU_LIFETIME);
18498+ result = -EINPROGRESS;
18499+ }
18500+
18501+ acx_sem_unlock(adev);
18502+end:
18503+ FN_EXIT1(result);
18504+ return result;
18505+}
18506+
18507+
18508+/************************ private ioctls ******************************/
18509+
18510+
18511+/***********************************************************************
18512+** acx_ioctl_set_debug
18513+*/
18514+#if ACX_DEBUG
18515+static int
18516+acx_ioctl_set_debug(
18517+ struct net_device *ndev,
18518+ struct iw_request_info *info,
18519+ union iwreq_data *wrqu,
18520+ char *extra)
18521+{
18522+ unsigned int debug_new = *((unsigned int *)extra);
18523+ int result = -EINVAL;
18524+
18525+ log(L_ANY, "setting debug from %04X to %04X\n", acx_debug, debug_new);
18526+ acx_debug = debug_new;
18527+
18528+ result = OK;
18529+ return result;
18530+
18531+}
18532+#endif
18533+
18534+
18535+/***********************************************************************
18536+** acx_ioctl_list_reg_domain
18537+*/
18538+static int
18539+acx_ioctl_list_reg_domain(
18540+ struct net_device *ndev,
18541+ struct iw_request_info *info,
18542+ union iwreq_data *wrqu,
18543+ char *extra)
18544+{
18545+ int i = 1;
18546+ const char * const *entry = acx_reg_domain_strings;
18547+
18548+ printk("dom# chan# domain/country\n");
18549+ while (*entry)
18550+ printk("%4d %s\n", i++, *entry++);
18551+ return OK;
18552+}
18553+
18554+
18555+/***********************************************************************
18556+** acx_ioctl_set_reg_domain
18557+*/
18558+static int
18559+acx_ioctl_set_reg_domain(
18560+ struct net_device *ndev,
18561+ struct iw_request_info *info,
18562+ union iwreq_data *wrqu,
18563+ char *extra)
18564+{
18565+ acx_device_t *adev = ndev2adev(ndev);
18566+ int result;
18567+
18568+ FN_ENTER;
18569+
18570+ if ((*extra < 1) || ((size_t)*extra > acx_reg_domain_ids_len)) {
18571+ result = -EINVAL;
18572+ goto end;
18573+ }
18574+
18575+ acx_sem_lock(adev);
18576+
18577+ adev->reg_dom_id = acx_reg_domain_ids[*extra - 1];
18578+ SET_BIT(adev->set_mask, GETSET_REG_DOMAIN);
18579+
18580+ result = -EINPROGRESS;
18581+
18582+ acx_sem_unlock(adev);
18583+end:
18584+ FN_EXIT1(result);
18585+ return result;
18586+}
18587+
18588+
18589+/***********************************************************************
18590+** acx_ioctl_get_reg_domain
18591+*/
18592+static int
18593+acx_ioctl_get_reg_domain(
18594+ struct net_device *ndev,
18595+ struct iw_request_info *info,
18596+ union iwreq_data *wrqu,
18597+ char *extra)
18598+{
18599+ acx_device_t *adev = ndev2adev(ndev);
18600+ int dom,i;
18601+
18602+ /* no locking */
18603+ dom = adev->reg_dom_id;
18604+
18605+ for (i = 1; i <= acx_reg_domain_ids_len; i++) {
18606+ if (acx_reg_domain_ids[i-1] == dom) {
18607+ log(L_IOCTL, "regulatory domain is currently set "
18608+ "to %d (0x%X): %s\n", i, dom,
18609+ acx_reg_domain_strings[i-1]);
18610+ *extra = i;
18611+ break;
18612+ }
18613+ }
18614+
18615+ return OK;
18616+}
18617+
18618+
18619+/***********************************************************************
18620+** acx_ioctl_set_short_preamble
18621+*/
18622+static const char * const
18623+preamble_modes[] = {
18624+ "off",
18625+ "on",
18626+ "auto (peer capability dependent)",
18627+ "unknown mode, error"
18628+};
18629+
18630+static int
18631+acx_ioctl_set_short_preamble(
18632+ struct net_device *ndev,
18633+ struct iw_request_info *info,
18634+ union iwreq_data *wrqu,
18635+ char *extra)
18636+{
18637+ acx_device_t *adev = ndev2adev(ndev);
18638+ int i;
18639+ int result;
18640+
18641+ FN_ENTER;
18642+
18643+ if ((unsigned char)*extra > 2) {
18644+ result = -EINVAL;
18645+ goto end;
18646+ }
18647+
18648+ acx_sem_lock(adev);
18649+
18650+ adev->preamble_mode = (u8)*extra;
18651+ switch (adev->preamble_mode) {
18652+ case 0: /* long */
18653+ adev->preamble_cur = 0;
18654+ break;
18655+ case 1:
18656+ /* short, kick incapable peers */
18657+ adev->preamble_cur = 1;
18658+ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) {
18659+ client_t *clt = &adev->sta_list[i];
18660+ if (!clt->used) continue;
18661+ if (!(clt->cap_info & WF_MGMT_CAP_SHORT)) {
18662+ clt->used = CLIENT_EMPTY_SLOT_0;
18663+ }
18664+ }
18665+ switch (adev->mode) {
18666+ case ACX_MODE_2_STA:
18667+ if (adev->ap_client && !adev->ap_client->used) {
18668+ /* We kicked our AP :) */
18669+ SET_BIT(adev->set_mask, GETSET_RESCAN);
18670+ }
18671+ }
18672+ break;
18673+ case 2: /* auto. short only if all peers are short-capable */
18674+ adev->preamble_cur = 1;
18675+ for (i = 0; i < VEC_SIZE(adev->sta_list); i++) {
18676+ client_t *clt = &adev->sta_list[i];
18677+ if (!clt->used) continue;
18678+ if (!(clt->cap_info & WF_MGMT_CAP_SHORT)) {
18679+ adev->preamble_cur = 0;
18680+ break;
18681+ }
18682+ }
18683+ break;
18684+ }
18685+ printk("new short preamble setting: configured %s, active %s\n",
18686+ preamble_modes[adev->preamble_mode],
18687+ preamble_modes[adev->preamble_cur]);
18688+ result = OK;
18689+
18690+ acx_sem_unlock(adev);
18691+end:
18692+ FN_EXIT1(result);
18693+ return result;
18694+}
18695+
18696+
18697+/***********************************************************************
18698+** acx_ioctl_get_short_preamble
18699+*/
18700+static int
18701+acx_ioctl_get_short_preamble(
18702+ struct net_device *ndev,
18703+ struct iw_request_info *info,
18704+ union iwreq_data *wrqu,
18705+ char *extra)
18706+{
18707+ acx_device_t *adev = ndev2adev(ndev);
18708+
18709+ acx_sem_lock(adev);
18710+
18711+ printk("current short preamble setting: configured %s, active %s\n",
18712+ preamble_modes[adev->preamble_mode],
18713+ preamble_modes[adev->preamble_cur]);
18714+
18715+ *extra = (char)adev->preamble_mode;
18716+
18717+ acx_sem_unlock(adev);
18718+
18719+ return OK;
18720+}
18721+
18722+
18723+/***********************************************************************
18724+** acx_ioctl_set_antenna
18725+**
18726+** TX and RX antenna can be set separately but this function good
18727+** for testing 0-4 bits
18728+*/
18729+static int
18730+acx_ioctl_set_antenna(
18731+ struct net_device *ndev,
18732+ struct iw_request_info *info,
18733+ union iwreq_data *wrqu,
18734+ char *extra)
18735+{
18736+ acx_device_t *adev = ndev2adev(ndev);
18737+
18738+ acx_sem_lock(adev);
18739+
18740+ printk("old antenna value: 0x%02X (COMBINED bit mask)\n"
18741+ "Rx antenna selection:\n"
18742+ "0x00 ant. 1\n"
18743+ "0x40 ant. 2\n"
18744+ "0x80 full diversity\n"
18745+ "0xc0 partial diversity\n"
18746+ "0x0f dwell time mask (in units of us)\n"
18747+ "Tx antenna selection:\n"
18748+ "0x00 ant. 2\n" /* yep, those ARE reversed! */
18749+ "0x20 ant. 1\n"
18750+ "new antenna value: 0x%02X\n",
18751+ adev->antenna, (u8)*extra);
18752+
18753+ adev->antenna = (u8)*extra;
18754+ SET_BIT(adev->set_mask, GETSET_ANTENNA);
18755+
18756+ acx_sem_unlock(adev);
18757+
18758+ return -EINPROGRESS;
18759+}
18760+
18761+
18762+/***********************************************************************
18763+** acx_ioctl_get_antenna
18764+*/
18765+static int
18766+acx_ioctl_get_antenna(
18767+ struct net_device *ndev,
18768+ struct iw_request_info *info,
18769+ union iwreq_data *wrqu,
18770+ char *extra)
18771+{
18772+ acx_device_t *adev = ndev2adev(ndev);
18773+
18774+ /* no locking. it's pointless to lock a single load */
18775+ printk("current antenna value: 0x%02X (COMBINED bit mask)\n"
18776+ "Rx antenna selection:\n"
18777+ "0x00 ant. 1\n"
18778+ "0x40 ant. 2\n"
18779+ "0x80 full diversity\n"
18780+ "0xc0 partial diversity\n"
18781+ "Tx antenna selection:\n"
18782+ "0x00 ant. 2\n" /* yep, those ARE reversed! */
18783+ "0x20 ant. 1\n", adev->antenna);
18784+
18785+ return 0;
18786+}
18787+
18788+
18789+/***********************************************************************
18790+** acx_ioctl_set_rx_antenna
18791+**
18792+** 0 = antenna1; 1 = antenna2; 2 = full diversity; 3 = partial diversity
18793+** Could anybody test which antenna is the external one?
18794+*/
18795+static int
18796+acx_ioctl_set_rx_antenna(
18797+ struct net_device *ndev,
18798+ struct iw_request_info *info,
18799+ union iwreq_data *wrqu,
18800+ char *extra)
18801+{
18802+ acx_device_t *adev = ndev2adev(ndev);
18803+ int result;
18804+
18805+ FN_ENTER;
18806+
18807+ if (*extra > 3) {
18808+ result = -EINVAL;
18809+ goto end;
18810+ }
18811+
18812+ printk("old antenna value: 0x%02X\n", adev->antenna);
18813+
18814+ acx_sem_lock(adev);
18815+
18816+ adev->antenna &= 0x3f;
18817+ SET_BIT(adev->antenna, (*extra << 6));
18818+ SET_BIT(adev->set_mask, GETSET_ANTENNA);
18819+ printk("new antenna value: 0x%02X\n", adev->antenna);
18820+ result = -EINPROGRESS;
18821+
18822+ acx_sem_unlock(adev);
18823+end:
18824+ FN_EXIT1(result);
18825+ return result;
18826+}
18827+
18828+
18829+/***********************************************************************
18830+** acx_ioctl_set_tx_antenna
18831+**
18832+** Arguments: 0 == antenna2; 1 == antenna1;
18833+** Could anybody test which antenna is the external one?
18834+*/
18835+static int
18836+acx_ioctl_set_tx_antenna(
18837+ struct net_device *ndev,
18838+ struct iw_request_info *info,
18839+ union iwreq_data *wrqu,
18840+ char *extra)
18841+{
18842+ acx_device_t *adev = ndev2adev(ndev);
18843+ int result;
18844+
18845+ FN_ENTER;
18846+
18847+ if (*extra > 1) {
18848+ result = -EINVAL;
18849+ goto end;
18850+ }
18851+
18852+ printk("old antenna value: 0x%02X\n", adev->antenna);
18853+
18854+ acx_sem_lock(adev);
18855+
18856+ adev->antenna &= ~0x30;
18857+ SET_BIT(adev->antenna, ((*extra & 0x01) << 5));
18858+ SET_BIT(adev->set_mask, GETSET_ANTENNA);
18859+ printk("new antenna value: 0x%02X\n", adev->antenna);
18860+ result = -EINPROGRESS;
18861+
18862+ acx_sem_unlock(adev);
18863+end:
18864+ FN_EXIT1(result);
18865+ return result;
18866+}
18867+
18868+
18869+/***********************************************************************
18870+** acx_ioctl_wlansniff
18871+**
18872+** can we just remove this in favor of monitor mode? --vda
18873+*/
18874+static int
18875+acx_ioctl_wlansniff(
18876+ struct net_device *ndev,
18877+ struct iw_request_info *info,
18878+ union iwreq_data *wrqu,
18879+ char *extra)
18880+{
18881+ acx_device_t *adev = ndev2adev(ndev);
18882+ unsigned int *params = (unsigned int*)extra;
18883+ unsigned int enable = (unsigned int)(params[0] > 0);
18884+ int result;
18885+
18886+ FN_ENTER;
18887+
18888+ acx_sem_lock(adev);
18889+
18890+ /* not using printk() here, since it distorts kismet display
18891+ * when printk messages activated */
18892+ log(L_IOCTL, "setting monitor to: 0x%02X\n", params[0]);
18893+
18894+ switch (params[0]) {
18895+ case 0:
18896+ /* no monitor mode. hmm, should we simply ignore it
18897+ * or go back to enabling adev->netdev->type ARPHRD_ETHER? */
18898+ break;
18899+ case 1:
18900+ adev->monitor_type = ARPHRD_IEEE80211_PRISM;
18901+ break;
18902+ case 2:
18903+ adev->monitor_type = ARPHRD_IEEE80211;
18904+ break;
18905+ }
18906+
18907+ if (params[0]) {
18908+ adev->mode = ACX_MODE_MONITOR;
18909+ SET_BIT(adev->set_mask, GETSET_MODE);
18910+ }
18911+
18912+ if (enable) {
18913+ adev->channel = params[1];
18914+ SET_BIT(adev->set_mask, GETSET_RX);
18915+ }
18916+ result = -EINPROGRESS;
18917+
18918+ acx_sem_unlock(adev);
18919+
18920+ FN_EXIT1(result);
18921+ return result;
18922+}
18923+
18924+
18925+/***********************************************************************
18926+** acx_ioctl_unknown11
18927+** FIXME: looks like some sort of "iwpriv kick_sta MAC" but it's broken
18928+*/
18929+static int
18930+acx_ioctl_unknown11(
18931+ struct net_device *ndev,
18932+ struct iw_request_info *info,
18933+ union iwreq_data *wrqu,
18934+ char *extra)
18935+{
18936+#ifdef BROKEN
18937+ struct iw_param *vwrq = &wrqu->param;
18938+ acx_device_t *adev = ndev2adev(ndev);
18939+ unsigned long flags;
18940+ client_t client;
18941+ int result;
18942+
18943+ acx_sem_lock(adev);
18944+ acx_lock(adev, flags);
18945+
18946+ acx_l_transmit_disassoc(adev, &client);
18947+ result = OK;
18948+
18949+ acx_unlock(adev, flags);
18950+ acx_sem_unlock(adev);
18951+
18952+ return result;
18953+#endif
18954+ return -EINVAL;
18955+}
18956+
18957+
18958+/***********************************************************************
18959+** debug helper function to be able to debug various issues relatively easily
18960+*/
18961+static int
18962+acx_ioctl_dbg_set_masks(
18963+ struct net_device *ndev,
18964+ struct iw_request_info *info,
18965+ union iwreq_data *wrqu,
18966+ char *extra)
18967+{
18968+ acx_device_t *adev = ndev2adev(ndev);
18969+ const unsigned int *params = (unsigned int*)extra;
18970+ int result;
18971+
18972+ acx_sem_lock(adev);
18973+
18974+ log(L_IOCTL, "setting flags in settings mask: "
18975+ "get_mask %08X set_mask %08X\n"
18976+ "before: get_mask %08X set_mask %08X\n",
18977+ params[0], params[1],
18978+ adev->get_mask, adev->set_mask);
18979+ SET_BIT(adev->get_mask, params[0]);
18980+ SET_BIT(adev->set_mask, params[1]);
18981+ log(L_IOCTL, "after: get_mask %08X set_mask %08X\n",
18982+ adev->get_mask, adev->set_mask);
18983+ result = -EINPROGRESS; /* immediately call commit handler */
18984+
18985+ acx_sem_unlock(adev);
18986+
18987+ return result;
18988+}
18989+
18990+
18991+/***********************************************************************
18992+* acx_ioctl_set_rates
18993+*
18994+* This ioctl takes string parameter. Examples:
18995+* iwpriv wlan0 SetRates "1,2"
18996+* use 1 and 2 Mbit rates, both are in basic rate set
18997+* iwpriv wlan0 SetRates "1,2 5,11"
18998+* use 1,2,5.5,11 Mbit rates. 1 and 2 are basic
18999+* iwpriv wlan0 SetRates "1,2 5c,11c"
19000+* same ('c' means 'CCK modulation' and it is a default for 5 and 11)
19001+* iwpriv wlan0 SetRates "1,2 5p,11p"
19002+* use 1,2,5.5,11 Mbit, 1,2 are basic. 5 and 11 are using PBCC
19003+* iwpriv wlan0 SetRates "1,2,5,11 22p"
19004+* use 1,2,5.5,11,22 Mbit. 1,2,5.5 and 11 are basic. 22 is using PBCC
19005+* (this is the maximum acx100 can do (modulo x4 mode))
19006+* iwpriv wlan0 SetRates "1,2,5,11 22"
19007+* same. 802.11 defines only PBCC modulation
19008+* for 22 and 33 Mbit rates, so there is no ambiguity
19009+* iwpriv wlan0 SetRates "1,2,5,11 6o,9o,12o,18o,24o,36o,48o,54o"
19010+* 1,2,5.5 and 11 are basic. 11g OFDM rates are enabled but
19011+* they are not in basic rate set. 22 Mbit is disabled.
19012+* iwpriv wlan0 SetRates "1,2,5,11 6,9,12,18,24,36,48,54"
19013+* same. OFDM is default for 11g rates except 22 and 33 Mbit,
19014+* thus 'o' is optional
19015+* iwpriv wlan0 SetRates "1,2,5,11 6d,9d,12d,18d,24d,36d,48d,54d"
19016+* 1,2,5.5 and 11 are basic. 11g CCK-OFDM rates are enabled
19017+* (acx111 does not support CCK-OFDM, driver will reject this cmd)
19018+* iwpriv wlan0 SetRates "6,9,12 18,24,36,48,54"
19019+* 6,9,12 are basic, rest of 11g rates is enabled. Using OFDM
19020+*/
19021+#include "setrate.c"
19022+
19023+/* disallow: 33Mbit (unsupported by hw) */
19024+/* disallow: CCKOFDM (unsupported by hw) */
19025+static int
19026+acx111_supported(int mbit, int modulation, void *opaque)
19027+{
19028+ if (mbit==33) return -ENOTSUPP;
19029+ if (modulation==DOT11_MOD_CCKOFDM) return -ENOTSUPP;
19030+ return OK;
19031+}
19032+
19033+static const u16
19034+acx111mask[] = {
19035+ [DOT11_RATE_1 ] = RATE111_1 ,
19036+ [DOT11_RATE_2 ] = RATE111_2 ,
19037+ [DOT11_RATE_5 ] = RATE111_5 ,
19038+ [DOT11_RATE_11] = RATE111_11,
19039+ [DOT11_RATE_22] = RATE111_22,
19040+ /* [DOT11_RATE_33] = */
19041+ [DOT11_RATE_6 ] = RATE111_6 ,
19042+ [DOT11_RATE_9 ] = RATE111_9 ,
19043+ [DOT11_RATE_12] = RATE111_12,
19044+ [DOT11_RATE_18] = RATE111_18,
19045+ [DOT11_RATE_24] = RATE111_24,
19046+ [DOT11_RATE_36] = RATE111_36,
19047+ [DOT11_RATE_48] = RATE111_48,
19048+ [DOT11_RATE_54] = RATE111_54,
19049+};
19050+
19051+static u32
19052+acx111_gen_mask(int mbit, int modulation, void *opaque)
19053+{
19054+ /* lower 16 bits show selected 1, 2, CCK and OFDM rates */
19055+ /* upper 16 bits show selected PBCC rates */
19056+ u32 m = acx111mask[rate_mbit2enum(mbit)];
19057+ if (modulation==DOT11_MOD_PBCC)
19058+ return m<<16;
19059+ return m;
19060+}
19061+
19062+static int
19063+verify_rate(u32 rate, int chip_type)
19064+{
19065+ /* never happens. be paranoid */
19066+ if (!rate) return -EINVAL;
19067+
19068+ /* disallow: mixing PBCC and CCK at 5 and 11Mbit
19069+ ** (can be supported, but needs complicated handling in tx code) */
19070+ if (( rate & ((RATE111_11+RATE111_5)<<16) )
19071+ && ( rate & (RATE111_11+RATE111_5) )
19072+ ) {
19073+ return -ENOTSUPP;
19074+ }
19075+ if (CHIPTYPE_ACX100 == chip_type) {
19076+ if ( rate & ~(RATE111_ACX100_COMPAT+(RATE111_ACX100_COMPAT<<16)) )
19077+ return -ENOTSUPP;
19078+ }
19079+ return 0;
19080+}
19081+
19082+static int
19083+acx_ioctl_set_rates(struct net_device *ndev,
19084+ struct iw_request_info *info,
19085+ union iwreq_data *wrqu,
19086+ char *extra)
19087+{
19088+ acx_device_t *adev = ndev2adev(ndev);
19089+ unsigned long flags;
19090+ int result;
19091+ u32 brate = 0, orate = 0; /* basic, operational rate set */
19092+
19093+ FN_ENTER;
19094+
19095+ log(L_IOCTL, "set_rates %s\n", extra);
19096+ result = fill_ratemasks(extra, &brate, &orate,
19097+ acx111_supported, acx111_gen_mask, 0);
19098+ if (result) goto end;
19099+ SET_BIT(orate, brate);
19100+ log(L_IOCTL, "brate %08X orate %08X\n", brate, orate);
19101+
19102+ result = verify_rate(brate, adev->chip_type);
19103+ if (result) goto end;
19104+ result = verify_rate(orate, adev->chip_type);
19105+ if (result) goto end;
19106+
19107+ acx_sem_lock(adev);
19108+ acx_lock(adev, flags);
19109+
19110+ adev->rate_basic = brate;
19111+ adev->rate_oper = orate;
19112+ /* TODO: ideally, we shall monitor highest basic rate
19113+ ** which was successfully sent to every peer
19114+ ** (say, last we checked, everybody could hear 5.5 Mbits)
19115+ ** and use that for bcasts when we want to reach all peers.
19116+ ** For beacons, we probably shall use lowest basic rate
19117+ ** because we want to reach all *potential* new peers too */
19118+ adev->rate_bcast = 1 << lowest_bit(brate);
19119+ if (IS_ACX100(adev))
19120+ adev->rate_bcast100 = acx_rate111to100(adev->rate_bcast);
19121+ adev->rate_auto = !has_only_one_bit(orate);
19122+ acx_l_update_client_rates(adev, orate);
19123+ /* TODO: get rid of ratevector, build it only when needed */
19124+ acx_l_update_ratevector(adev);
19125+
19126+ /* Do/don't do tx rate fallback; beacon contents and rate */
19127+ SET_BIT(adev->set_mask, SET_RATE_FALLBACK|SET_TEMPLATES);
19128+ result = -EINPROGRESS;
19129+
19130+ acx_unlock(adev, flags);
19131+ acx_sem_unlock(adev);
19132+end:
19133+ FN_EXIT1(result);
19134+ return result;
19135+}
19136+
19137+
19138+/***********************************************************************
19139+** acx_ioctl_get_phy_chan_busy_percentage
19140+*/
19141+static int
19142+acx_ioctl_get_phy_chan_busy_percentage(
19143+ struct net_device *ndev,
19144+ struct iw_request_info *info,
19145+ union iwreq_data *wrqu,
19146+ char *extra)
19147+{
19148+ acx_device_t *adev = ndev2adev(ndev);
19149+ struct {
19150+ u16 type;
19151+ u16 len;
19152+ u32 busytime;
19153+ u32 totaltime;
19154+ } ACX_PACKED usage;
19155+ int result;
19156+
19157+ acx_sem_lock(adev);
19158+
19159+ if (OK != acx_s_interrogate(adev, &usage, ACX1xx_IE_MEDIUM_USAGE)) {
19160+ result = NOT_OK;
19161+ goto end_unlock;
19162+ }
19163+
19164+ usage.busytime = le32_to_cpu(usage.busytime);
19165+ usage.totaltime = le32_to_cpu(usage.totaltime);
19166+
19167+ /* yes, this is supposed to be "Medium" (singular of media),
19168+ not "average"! OK, reword the message to make it obvious... */
19169+ printk("%s: busy percentage of medium (since last invocation): %d%% "
19170+ "(%u of %u microseconds)\n",
19171+ ndev->name,
19172+ usage.busytime / ((usage.totaltime / 100) + 1),
19173+ usage.busytime, usage.totaltime);
19174+
19175+ result = OK;
19176+
19177+end_unlock:
19178+ acx_sem_unlock(adev);
19179+
19180+ return result;
19181+}
19182+
19183+
19184+/***********************************************************************
19185+** acx_ioctl_set_ed_threshold
19186+*/
19187+static inline int
19188+acx_ioctl_set_ed_threshold(
19189+ struct net_device *ndev,
19190+ struct iw_request_info *info,
19191+ union iwreq_data *wrqu,
19192+ char *extra)
19193+{
19194+ acx_device_t *adev = ndev2adev(ndev);
19195+
19196+ acx_sem_lock(adev);
19197+
19198+ printk("old ED threshold value: %d\n", adev->ed_threshold);
19199+ adev->ed_threshold = (unsigned char)*extra;
19200+ printk("new ED threshold value: %d\n", (unsigned char)*extra);
19201+ SET_BIT(adev->set_mask, GETSET_ED_THRESH);
19202+
19203+ acx_sem_unlock(adev);
19204+
19205+ return -EINPROGRESS;
19206+}
19207+
19208+
19209+/***********************************************************************
19210+** acx_ioctl_set_cca
19211+*/
19212+static inline int
19213+acx_ioctl_set_cca(
19214+ struct net_device *ndev,
19215+ struct iw_request_info *info,
19216+ union iwreq_data *wrqu,
19217+ char *extra)
19218+{
19219+ acx_device_t *adev = ndev2adev(ndev);
19220+ int result;
19221+
19222+ acx_sem_lock(adev);
19223+
19224+ printk("old CCA value: 0x%02X\n", adev->cca);
19225+ adev->cca = (unsigned char)*extra;
19226+ printk("new CCA value: 0x%02X\n", (unsigned char)*extra);
19227+ SET_BIT(adev->set_mask, GETSET_CCA);
19228+ result = -EINPROGRESS;
19229+
19230+ acx_sem_unlock(adev);
19231+
19232+ return result;
19233+}
19234+
19235+
19236+/***********************************************************************
19237+*/
19238+static const char * const
19239+scan_modes[] = { "active", "passive", "background" };
19240+
19241+static void
19242+acx_print_scan_params(acx_device_t *adev, const char* head)
19243+{
19244+ printk("%s: %smode %d (%s), min chan time %dTU, "
19245+ "max chan time %dTU, max scan rate byte: %d\n",
19246+ adev->ndev->name, head,
19247+ adev->scan_mode, scan_modes[adev->scan_mode],
19248+ adev->scan_probe_delay, adev->scan_duration, adev->scan_rate);
19249+}
19250+
19251+static int
19252+acx_ioctl_set_scan_params(
19253+ struct net_device *ndev,
19254+ struct iw_request_info *info,
19255+ union iwreq_data *wrqu,
19256+ char *extra)
19257+{
19258+ acx_device_t *adev = ndev2adev(ndev);
19259+ int result;
19260+ const int *params = (int *)extra;
19261+
19262+ acx_sem_lock(adev);
19263+
19264+ acx_print_scan_params(adev, "old scan parameters: ");
19265+ if ((params[0] != -1) && (params[0] >= 0) && (params[0] <= 2))
19266+ adev->scan_mode = params[0];
19267+ if (params[1] != -1)
19268+ adev->scan_probe_delay = params[1];
19269+ if (params[2] != -1)
19270+ adev->scan_duration = params[2];
19271+ if ((params[3] != -1) && (params[3] <= 255))
19272+ adev->scan_rate = params[3];
19273+ acx_print_scan_params(adev, "new scan parameters: ");
19274+ SET_BIT(adev->set_mask, GETSET_RESCAN);
19275+ result = -EINPROGRESS;
19276+
19277+ acx_sem_unlock(adev);
19278+
19279+ return result;
19280+}
19281+
19282+static int
19283+acx_ioctl_get_scan_params(
19284+ struct net_device *ndev,
19285+ struct iw_request_info *info,
19286+ union iwreq_data *wrqu,
19287+ char *extra)
19288+{
19289+ acx_device_t *adev = ndev2adev(ndev);
19290+ int result;
19291+ int *params = (int *)extra;
19292+
19293+ acx_sem_lock(adev);
19294+
19295+ acx_print_scan_params(adev, "current scan parameters: ");
19296+ params[0] = adev->scan_mode;
19297+ params[1] = adev->scan_probe_delay;
19298+ params[2] = adev->scan_duration;
19299+ params[3] = adev->scan_rate;
19300+ result = OK;
19301+
19302+ acx_sem_unlock(adev);
19303+
19304+ return result;
19305+}
19306+
19307+
19308+/***********************************************************************
19309+*/
19310+static int
19311+acx100_ioctl_set_led_power(
19312+ struct net_device *ndev,
19313+ struct iw_request_info *info,
19314+ union iwreq_data *wrqu,
19315+ char *extra)
19316+{
19317+ static const char * const led_modes[] = { "off", "on", "LinkQuality" };
19318+
19319+ acx_device_t *adev = ndev2adev(ndev);
19320+ int result;
19321+
19322+ acx_sem_lock(adev);
19323+
19324+ printk("%s: power LED status: old %d (%s), ",
19325+ ndev->name,
19326+ adev->led_power,
19327+ led_modes[adev->led_power]);
19328+ adev->led_power = extra[0];
19329+ if (adev->led_power > 2) adev->led_power = 2;
19330+ printk("new %d (%s)\n",
19331+ adev->led_power,
19332+ led_modes[adev->led_power]);
19333+
19334+ if (adev->led_power == 2) {
19335+ printk("%s: max link quality setting: old %d, ",
19336+ ndev->name, adev->brange_max_quality);
19337+ if (extra[1])
19338+ adev->brange_max_quality = extra[1];
19339+ printk("new %d\n", adev->brange_max_quality);
19340+ }
19341+
19342+ SET_BIT(adev->set_mask, GETSET_LED_POWER);
19343+
19344+ result = -EINPROGRESS;
19345+
19346+ acx_sem_unlock(adev);
19347+
19348+ return result;
19349+}
19350+
19351+
19352+/***********************************************************************
19353+*/
19354+static inline int
19355+acx100_ioctl_get_led_power(
19356+ struct net_device *ndev,
19357+ struct iw_request_info *info,
19358+ union iwreq_data *wrqu,
19359+ char *extra)
19360+{
19361+ acx_device_t *adev = ndev2adev(ndev);
19362+
19363+ acx_sem_lock(adev);
19364+
19365+ extra[0] = adev->led_power;
19366+ if (adev->led_power == 2)
19367+ extra[1] = adev->brange_max_quality;
19368+ else
19369+ extra[1] = -1;
19370+
19371+ acx_sem_unlock(adev);
19372+
19373+ return OK;
19374+}
19375+
19376+
19377+/***********************************************************************
19378+*/
19379+static int
19380+acx111_ioctl_info(
19381+ struct net_device *ndev,
19382+ struct iw_request_info *info,
19383+ union iwreq_data *wrqu,
19384+ char *extra)
19385+{
19386+ struct iw_param *vwrq = &wrqu->param;
19387+ if (!IS_PCI(ndev2adev(ndev)))
19388+ return OK;
19389+ return acx111pci_ioctl_info(ndev, info, vwrq, extra);
19390+}
19391+
19392+
19393+/***********************************************************************
19394+*/
19395+static int
19396+acx100_ioctl_set_phy_amp_bias(
19397+ struct net_device *ndev,
19398+ struct iw_request_info *info,
19399+ union iwreq_data *wrqu,
19400+ char *extra)
19401+{
19402+ struct iw_param *vwrq = &wrqu->param;
19403+ if (IS_USB(ndev2adev(ndev))) {
19404+ printk("acx: set_phy_amp_bias() is not supported on USB\n");
19405+ return OK;
19406+ }
19407+#ifdef ACX_MEM
19408+ return acx100mem_ioctl_set_phy_amp_bias(ndev, info, vwrq, extra);
19409+#else
19410+ return acx100pci_ioctl_set_phy_amp_bias(ndev, info, vwrq, extra);
19411+#endif
19412+}
19413+
19414+
19415+/***********************************************************************
19416+*/
19417+static const iw_handler acx_ioctl_handler[] =
19418+{
19419+ acx_ioctl_commit, /* SIOCSIWCOMMIT */
19420+ acx_ioctl_get_name, /* SIOCGIWNAME */
19421+ NULL, /* SIOCSIWNWID */
19422+ NULL, /* SIOCGIWNWID */
19423+ acx_ioctl_set_freq, /* SIOCSIWFREQ */
19424+ acx_ioctl_get_freq, /* SIOCGIWFREQ */
19425+ acx_ioctl_set_mode, /* SIOCSIWMODE */
19426+ acx_ioctl_get_mode, /* SIOCGIWMODE */
19427+ acx_ioctl_set_sens, /* SIOCSIWSENS */
19428+ acx_ioctl_get_sens, /* SIOCGIWSENS */
19429+ NULL, /* SIOCSIWRANGE */
19430+ acx_ioctl_get_range, /* SIOCGIWRANGE */
19431+ NULL, /* SIOCSIWPRIV */
19432+ NULL, /* SIOCGIWPRIV */
19433+ NULL, /* SIOCSIWSTATS */
19434+ NULL, /* SIOCGIWSTATS */
19435+#if IW_HANDLER_VERSION > 4
19436+ iw_handler_set_spy, /* SIOCSIWSPY */
19437+ iw_handler_get_spy, /* SIOCGIWSPY */
19438+ iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
19439+ iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
19440+#else /* IW_HANDLER_VERSION > 4 */
19441+#ifdef WIRELESS_SPY
19442+ NULL /* acx_ioctl_set_spy FIXME */, /* SIOCSIWSPY */
19443+ NULL /* acx_ioctl_get_spy */, /* SIOCGIWSPY */
19444+#else /* WSPY */
19445+ NULL, /* SIOCSIWSPY */
19446+ NULL, /* SIOCGIWSPY */
19447+#endif /* WSPY */
19448+ NULL, /* [nothing] */
19449+ NULL, /* [nothing] */
19450+#endif /* IW_HANDLER_VERSION > 4 */
19451+ acx_ioctl_set_ap, /* SIOCSIWAP */
19452+ acx_ioctl_get_ap, /* SIOCGIWAP */
19453+ NULL, /* [nothing] */
19454+ acx_ioctl_get_aplist, /* SIOCGIWAPLIST */
19455+ acx_ioctl_set_scan, /* SIOCSIWSCAN */
19456+ acx_ioctl_get_scan, /* SIOCGIWSCAN */
19457+ acx_ioctl_set_essid, /* SIOCSIWESSID */
19458+ acx_ioctl_get_essid, /* SIOCGIWESSID */
19459+ acx_ioctl_set_nick, /* SIOCSIWNICKN */
19460+ acx_ioctl_get_nick, /* SIOCGIWNICKN */
19461+ NULL, /* [nothing] */
19462+ NULL, /* [nothing] */
19463+ acx_ioctl_set_rate, /* SIOCSIWRATE */
19464+ acx_ioctl_get_rate, /* SIOCGIWRATE */
19465+ acx_ioctl_set_rts, /* SIOCSIWRTS */
19466+ acx_ioctl_get_rts, /* SIOCGIWRTS */
19467+#if ACX_FRAGMENTATION
19468+ acx_ioctl_set_frag, /* SIOCSIWFRAG */
19469+ acx_ioctl_get_frag, /* SIOCGIWFRAG */
19470+#else
19471+ NULL, /* SIOCSIWFRAG */
19472+ NULL, /* SIOCGIWFRAG */
19473+#endif
19474+ acx_ioctl_set_txpow, /* SIOCSIWTXPOW */
19475+ acx_ioctl_get_txpow, /* SIOCGIWTXPOW */
19476+ acx_ioctl_set_retry, /* SIOCSIWRETRY */
19477+ acx_ioctl_get_retry, /* SIOCGIWRETRY */
19478+ acx_ioctl_set_encode, /* SIOCSIWENCODE */
19479+ acx_ioctl_get_encode, /* SIOCGIWENCODE */
19480+ acx_ioctl_set_power, /* SIOCSIWPOWER */
19481+ acx_ioctl_get_power, /* SIOCGIWPOWER */
19482+};
19483+
19484+
19485+/***********************************************************************
19486+*/
19487+
19488+/* if you plan to reorder something, make sure to reorder all other places
19489+ * accordingly! */
19490+/* SET/GET convention: SETs must have even position, GETs odd */
19491+#define ACX100_IOCTL SIOCIWFIRSTPRIV
19492+enum {
19493+ ACX100_IOCTL_DEBUG = ACX100_IOCTL,
19494+ ACX100_IOCTL_GET__________UNUSED1,
19495+ ACX100_IOCTL_SET_PLED,
19496+ ACX100_IOCTL_GET_PLED,
19497+ ACX100_IOCTL_SET_RATES,
19498+ ACX100_IOCTL_LIST_DOM,
19499+ ACX100_IOCTL_SET_DOM,
19500+ ACX100_IOCTL_GET_DOM,
19501+ ACX100_IOCTL_SET_SCAN_PARAMS,
19502+ ACX100_IOCTL_GET_SCAN_PARAMS,
19503+ ACX100_IOCTL_SET_PREAMB,
19504+ ACX100_IOCTL_GET_PREAMB,
19505+ ACX100_IOCTL_SET_ANT,
19506+ ACX100_IOCTL_GET_ANT,
19507+ ACX100_IOCTL_RX_ANT,
19508+ ACX100_IOCTL_TX_ANT,
19509+ ACX100_IOCTL_SET_PHY_AMP_BIAS,
19510+ ACX100_IOCTL_GET_PHY_CHAN_BUSY,
19511+ ACX100_IOCTL_SET_ED,
19512+ ACX100_IOCTL_GET__________UNUSED3,
19513+ ACX100_IOCTL_SET_CCA,
19514+ ACX100_IOCTL_GET__________UNUSED4,
19515+ ACX100_IOCTL_MONITOR,
19516+ ACX100_IOCTL_TEST,
19517+ ACX100_IOCTL_DBG_SET_MASKS,
19518+ ACX111_IOCTL_INFO,
19519+ ACX100_IOCTL_DBG_SET_IO,
19520+ ACX100_IOCTL_DBG_GET_IO
19521+};
19522+
19523+
19524+static const iw_handler acx_ioctl_private_handler[] =
19525+{
19526+#if ACX_DEBUG
19527+[ACX100_IOCTL_DEBUG - ACX100_IOCTL] = acx_ioctl_set_debug,
19528+#endif
19529+[ACX100_IOCTL_SET_PLED - ACX100_IOCTL] = acx100_ioctl_set_led_power,
19530+[ACX100_IOCTL_GET_PLED - ACX100_IOCTL] = acx100_ioctl_get_led_power,
19531+[ACX100_IOCTL_SET_RATES - ACX100_IOCTL] = acx_ioctl_set_rates,
19532+[ACX100_IOCTL_LIST_DOM - ACX100_IOCTL] = acx_ioctl_list_reg_domain,
19533+[ACX100_IOCTL_SET_DOM - ACX100_IOCTL] = acx_ioctl_set_reg_domain,
19534+[ACX100_IOCTL_GET_DOM - ACX100_IOCTL] = acx_ioctl_get_reg_domain,
19535+[ACX100_IOCTL_SET_SCAN_PARAMS - ACX100_IOCTL] = acx_ioctl_set_scan_params,
19536+[ACX100_IOCTL_GET_SCAN_PARAMS - ACX100_IOCTL] = acx_ioctl_get_scan_params,
19537+[ACX100_IOCTL_SET_PREAMB - ACX100_IOCTL] = acx_ioctl_set_short_preamble,
19538+[ACX100_IOCTL_GET_PREAMB - ACX100_IOCTL] = acx_ioctl_get_short_preamble,
19539+[ACX100_IOCTL_SET_ANT - ACX100_IOCTL] = acx_ioctl_set_antenna,
19540+[ACX100_IOCTL_GET_ANT - ACX100_IOCTL] = acx_ioctl_get_antenna,
19541+[ACX100_IOCTL_RX_ANT - ACX100_IOCTL] = acx_ioctl_set_rx_antenna,
19542+[ACX100_IOCTL_TX_ANT - ACX100_IOCTL] = acx_ioctl_set_tx_antenna,
19543+[ACX100_IOCTL_SET_PHY_AMP_BIAS - ACX100_IOCTL] = acx100_ioctl_set_phy_amp_bias,
19544+[ACX100_IOCTL_GET_PHY_CHAN_BUSY - ACX100_IOCTL] = acx_ioctl_get_phy_chan_busy_percentage,
19545+[ACX100_IOCTL_SET_ED - ACX100_IOCTL] = acx_ioctl_set_ed_threshold,
19546+[ACX100_IOCTL_SET_CCA - ACX100_IOCTL] = acx_ioctl_set_cca,
19547+[ACX100_IOCTL_MONITOR - ACX100_IOCTL] = acx_ioctl_wlansniff,
19548+[ACX100_IOCTL_TEST - ACX100_IOCTL] = acx_ioctl_unknown11,
19549+[ACX100_IOCTL_DBG_SET_MASKS - ACX100_IOCTL] = acx_ioctl_dbg_set_masks,
19550+[ACX111_IOCTL_INFO - ACX100_IOCTL] = acx111_ioctl_info,
19551+};
19552+
19553+
19554+static const struct iw_priv_args acx_ioctl_private_args[] = {
19555+#if ACX_DEBUG
19556+{ cmd : ACX100_IOCTL_DEBUG,
19557+ set_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
19558+ get_args : 0,
19559+ name : "SetDebug" },
19560+#endif
19561+{ cmd : ACX100_IOCTL_SET_PLED,
19562+ set_args : IW_PRIV_TYPE_BYTE | 2,
19563+ get_args : 0,
19564+ name : "SetLEDPower" },
19565+{ cmd : ACX100_IOCTL_GET_PLED,
19566+ set_args : 0,
19567+ get_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 2,
19568+ name : "GetLEDPower" },
19569+{ cmd : ACX100_IOCTL_SET_RATES,
19570+ set_args : IW_PRIV_TYPE_CHAR | 256,
19571+ get_args : 0,
19572+ name : "SetRates" },
19573+{ cmd : ACX100_IOCTL_LIST_DOM,
19574+ set_args : 0,
19575+ get_args : 0,
19576+ name : "ListRegDomain" },
19577+{ cmd : ACX100_IOCTL_SET_DOM,
19578+ set_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
19579+ get_args : 0,
19580+ name : "SetRegDomain" },
19581+{ cmd : ACX100_IOCTL_GET_DOM,
19582+ set_args : 0,
19583+ get_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
19584+ name : "GetRegDomain" },
19585+{ cmd : ACX100_IOCTL_SET_SCAN_PARAMS,
19586+ set_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 4,
19587+ get_args : 0,
19588+ name : "SetScanParams" },
19589+{ cmd : ACX100_IOCTL_GET_SCAN_PARAMS,
19590+ set_args : 0,
19591+ get_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 4,
19592+ name : "GetScanParams" },
19593+{ cmd : ACX100_IOCTL_SET_PREAMB,
19594+ set_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
19595+ get_args : 0,
19596+ name : "SetSPreamble" },
19597+{ cmd : ACX100_IOCTL_GET_PREAMB,
19598+ set_args : 0,
19599+ get_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
19600+ name : "GetSPreamble" },
19601+{ cmd : ACX100_IOCTL_SET_ANT,
19602+ set_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
19603+ get_args : 0,
19604+ name : "SetAntenna" },
19605+{ cmd : ACX100_IOCTL_GET_ANT,
19606+ set_args : 0,
19607+ get_args : 0,
19608+ name : "GetAntenna" },
19609+{ cmd : ACX100_IOCTL_RX_ANT,
19610+ set_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
19611+ get_args : 0,
19612+ name : "SetRxAnt" },
19613+{ cmd : ACX100_IOCTL_TX_ANT,
19614+ set_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
19615+ get_args : 0,
19616+ name : "SetTxAnt" },
19617+{ cmd : ACX100_IOCTL_SET_PHY_AMP_BIAS,
19618+ set_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
19619+ get_args : 0,
19620+ name : "SetPhyAmpBias"},
19621+{ cmd : ACX100_IOCTL_GET_PHY_CHAN_BUSY,
19622+ set_args : 0,
19623+ get_args : 0,
19624+ name : "GetPhyChanBusy" },
19625+{ cmd : ACX100_IOCTL_SET_ED,
19626+ set_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
19627+ get_args : 0,
19628+ name : "SetED" },
19629+{ cmd : ACX100_IOCTL_SET_CCA,
19630+ set_args : IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
19631+ get_args : 0,
19632+ name : "SetCCA" },
19633+{ cmd : ACX100_IOCTL_MONITOR,
19634+ set_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2,
19635+ get_args : 0,
19636+ name : "monitor" },
19637+{ cmd : ACX100_IOCTL_TEST,
19638+ set_args : 0,
19639+ get_args : 0,
19640+ name : "Test" },
19641+{ cmd : ACX100_IOCTL_DBG_SET_MASKS,
19642+ set_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2,
19643+ get_args : 0,
19644+ name : "DbgSetMasks" },
19645+{ cmd : ACX111_IOCTL_INFO,
19646+ set_args : 0,
19647+ get_args : 0,
19648+ name : "GetAcx111Info" },
19649+{ cmd : ACX100_IOCTL_DBG_SET_IO,
19650+ set_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 4,
19651+ get_args : 0,
19652+ name : "DbgSetIO" },
19653+{ cmd : ACX100_IOCTL_DBG_GET_IO,
19654+ set_args : IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 3,
19655+ get_args : 0,
19656+ name : "DbgGetIO" },
19657+};
19658+
19659+
19660+const struct iw_handler_def acx_ioctl_handler_def =
19661+{
19662+ .num_standard = VEC_SIZE(acx_ioctl_handler),
19663+ .num_private = VEC_SIZE(acx_ioctl_private_handler),
19664+ .num_private_args = VEC_SIZE(acx_ioctl_private_args),
19665+ .standard = (iw_handler *) acx_ioctl_handler,
19666+ .private = (iw_handler *) acx_ioctl_private_handler,
19667+ .private_args = (struct iw_priv_args *) acx_ioctl_private_args,
19668+#if IW_HANDLER_VERSION > 5
19669+ .get_wireless_stats = acx_e_get_wireless_stats
19670+#endif /* IW > 5 */
19671+};
19672Index: linux-2.6.22/drivers/net/wireless/acx/Kconfig
19673===================================================================
19674--- /dev/null 1970-01-01 00:00:00.000000000 +0000
19675+++ linux-2.6.22/drivers/net/wireless/acx/Kconfig 2007-08-23 18:34:19.000000000 +0200
19676@@ -0,0 +1,113 @@
19677+config ACX
19678+ tristate "TI acx100/acx111 802.11b/g wireless chipsets"
19679+ depends on NET_RADIO && EXPERIMENTAL
19680+ select FW_LOADER
19681+ ---help---
19682+ A driver for 802.11b/g wireless cards based on
19683+ Texas Instruments acx100 and acx111 chipsets.
19684+
19685+ This driver supports Host AP mode that allows
19686+ your computer to act as an IEEE 802.11 access point.
19687+ This driver is new and experimental.
19688+
19689+ Texas Instruments did not take part in development of this driver
19690+ in any way, shape or form.
19691+
19692+ The driver can be compiled as a module and will be named "acx".
19693+
19694+config ACX_PCI
19695+ bool "TI acx100/acx111 802.11b/g PCI"
19696+ depends on ACX && PCI
19697+ ---help---
19698+ Include PCI and CardBus support in acx.
19699+
19700+ acx chipsets need their firmware loaded at startup.
19701+ You will need to provide a firmware image via hotplug.
19702+
19703+ Firmware may be in a form of single image 40-100kb in size
19704+ (a 'combined' firmware) or two images - main image
19705+ (again 40-100kb) and radio image (~10kb or less).
19706+
19707+ Firmware images are requested from hotplug using following names:
19708+
19709+ tiacx100 - main firmware image for acx100 chipset
19710+ tiacx100rNN - radio acx100 firmware for radio type NN
19711+ tiacx100cNN - combined acx100 firmware for radio type NN
19712+ tiacx111 - main acx111 firmware
19713+ tiacx111rNN - radio acx111 firmware for radio type NN
19714+ tiacx111cNN - combined acx111 firmware for radio type NN
19715+
19716+ Driver will attempt to load combined image first.
19717+ If no such image is found, it will try to load main image
19718+ and radio image instead.
19719+
19720+ Firmware files are not covered by GPL and are not distributed
19721+ with this driver for legal reasons.
19722+
19723+config ACX_USB
19724+ bool "TI acx100/acx111 802.11b/g USB"
19725+ depends on ACX && (USB=y || USB=ACX)
19726+ ---help---
19727+ Include USB support in acx.
19728+
19729+ There is only one currently known device in this category,
19730+ D-Link DWL-120+, but newer devices seem to be on the horizon.
19731+
19732+ acx chipsets need their firmware loaded at startup.
19733+ You will need to provide a firmware image via hotplug.
19734+
19735+ Firmware for USB device is requested from hotplug
19736+ by the 'tiacx100usb' name.
19737+
19738+ Firmware files are not covered by GPL and are not distributed
19739+ with this driver for legal reasons.
19740+
19741+config ACX_MEM
19742+ bool "TI acx100/acx111 802.11b/g memory mapped slave 16 interface"
19743+ depends on ACX
19744+ ---help---
19745+ acx chipsets need their firmware loaded at startup.
19746+ You will need to provide a firmware image via hotplug.
19747+
19748+ Firmware for USB device is requested from hotplug
19749+ by the 'tiacx100usb' name.
19750+
19751+ Firmware files are not covered by GPL and are not distributed
19752+ with this driver for legal reasons.
19753+
19754+config ACX_CS
19755+ bool "TI acx100/acx111 802.11b/g cardbus interface"
19756+ depends on ACX
19757+ ---help---
19758+ acx chipsets need their firmware loaded at startup.
19759+ You will need to provide a firmware image via hotplug.
19760+
19761+ This driver is based on memory mapped driver.
19762+
19763+ Firmware files are not covered by GPL and are not distributed
19764+ with this driver for legal reasons.
19765+
19766+config ACX_HX4700
19767+ tristate "ACX support for the iPAQ hx4700 using ACX_MEM"
19768+ depends on HX4700_CORE && ACX_MEM
19769+ ---help---
19770+ Include memory interface support in acx for the iPAQ hx4700.
19771+
19772+config ACX_HTCUNIVERSAL
19773+ tristate "ACX support for the HTC Universal using ACX_MEM"
19774+ depends on HTCUNIVERSAL_CORE && HTC_ASIC3 && ACX_MEM
19775+ ---help---
19776+ Include memory interface support in acx for the HTC Universal.
19777+
19778+config ACX_HTCSABLE
19779+ tristate "ACX support for the HTC Sable (IPAQ hw6915) using ACX_MEM"
19780+ depends on MACH_HW6900 && HTC_ASIC3 && ACX_MEM
19781+ ---help---
19782+ Include memory interface support in acx for the HTC Sable (IPAQ hw6915).
19783+
19784+config ACX_RX3000
19785+ tristate "ACX support for the iPAQ RX3000 using ACX_MEM"
19786+ depends on MACH_RX3715 && ACX_MEM && LEDS_ASIC3
19787+ ---help---
19788+ Include memory interface support in acx for the IPAQ RX3000.
19789+
19790Index: linux-2.6.22/drivers/net/wireless/acx/Makefile
19791===================================================================
19792--- /dev/null 1970-01-01 00:00:00.000000000 +0000
19793+++ linux-2.6.22/drivers/net/wireless/acx/Makefile 2007-08-23 18:34:19.000000000 +0200
19794@@ -0,0 +1,21 @@
19795+#obj-m += acx.o
19796+
19797+#acx-obj-y += pci.o
19798+#acx-obj-y += usb.o
19799+
19800+#acx-objs := wlan.o conv.o ioctl.o common.o $(acx-obj-y)
19801+
19802+# Use this if you have proper Kconfig integration:
19803+
19804+obj-$(CONFIG_ACX) += acx.o
19805+obj-$(CONFIG_ACX_HX4700) += hx4700_acx.o
19806+obj-$(CONFIG_ACX_HTCUNIVERSAL) += htcuniversal_acx.o
19807+obj-$(CONFIG_ACX_HTCSABLE) += htcsable_acx.o
19808+obj-$(CONFIG_ACX_RX3000) += rx3000_acx.o
19809+#
19810+acx-obj-$(CONFIG_ACX_PCI) += pci.o
19811+acx-obj-$(CONFIG_ACX_USB) += usb.o
19812+acx-obj-$(CONFIG_ACX_MEM) += mem.o
19813+acx-obj-$(CONFIG_ACX_CS) += cs.o
19814+#
19815+acx-objs := wlan.o conv.o ioctl.o common.o $(acx-obj-y)
19816Index: linux-2.6.22/drivers/net/wireless/acx/mem.c
19817===================================================================
19818--- /dev/null 1970-01-01 00:00:00.000000000 +0000
19819+++ linux-2.6.22/drivers/net/wireless/acx/mem.c 2007-08-23 18:34:19.000000000 +0200
19820@@ -0,0 +1,5363 @@
19821+/***********************************************************************
19822+** Copyright (C) 2003 ACX100 Open Source Project
19823+**
19824+** The contents of this file are subject to the Mozilla Public
19825+** License Version 1.1 (the "License"); you may not use this file
19826+** except in compliance with the License. You may obtain a copy of
19827+** the License at http://www.mozilla.org/MPL/
19828+**
19829+** Software distributed under the License is distributed on an "AS
19830+** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
19831+** implied. See the License for the specific language governing
19832+** rights and limitations under the License.
19833+**
19834+** Alternatively, the contents of this file may be used under the
19835+** terms of the GNU Public License version 2 (the "GPL"), in which
19836+** case the provisions of the GPL are applicable instead of the
19837+** above. If you wish to allow the use of your version of this file
19838+** only under the terms of the GPL and not to allow others to use
19839+** your version of this file under the MPL, indicate your decision
19840+** by deleting the provisions above and replace them with the notice
19841+** and other provisions required by the GPL. If you do not delete
19842+** the provisions above, a recipient may use your version of this
19843+** file under either the MPL or the GPL.
19844+** ---------------------------------------------------------------------
19845+** Inquiries regarding the ACX100 Open Source Project can be
19846+** made directly to:
19847+**
19848+** acx100-users@lists.sf.net
19849+** http://acx100.sf.net
19850+** ---------------------------------------------------------------------
19851+**
19852+** Slave memory interface support:
19853+**
19854+** Todd Blumer - SDG Systems
19855+** Bill Reese - HP
19856+** Eric McCorkle - Shadowsun
19857+*/
19858+#define ACX_MEM 1
19859+
19860+/*
19861+ * non-zero makes it dump the ACX memory to the console then
19862+ * panic when you cat /proc/driver/acx_wlan0_diag
19863+ */
19864+#define DUMP_MEM_DEFINED 1
19865+
19866+#define DUMP_MEM_DURING_DIAG 0
19867+#define DUMP_IF_SLOW 0
19868+
19869+#define PATCH_AROUND_BAD_SPOTS 1
19870+#define HX4700_FIRMWARE_CHECKSUM 0x0036862e
19871+#define HX4700_ALTERNATE_FIRMWARE_CHECKSUM 0x00368a75
19872+
19873+#include <linux/version.h>
19874+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18)
19875+#include <linux/config.h>
19876+#endif
19877+
19878+/* Linux 2.6.18+ uses <linux/utsrelease.h> */
19879+#ifndef UTS_RELEASE
19880+#include <linux/utsrelease.h>
19881+#endif
19882+
19883+#include <linux/compiler.h> /* required for Lx 2.6.8 ?? */
19884+#include <linux/kernel.h>
19885+#include <linux/module.h>
19886+#include <linux/moduleparam.h>
19887+#include <linux/sched.h>
19888+#include <linux/types.h>
19889+#include <linux/skbuff.h>
19890+#include <linux/slab.h>
19891+#include <linux/if_arp.h>
19892+#include <linux/irq.h>
19893+#include <linux/rtnetlink.h>
19894+#include <linux/wireless.h>
19895+#include <net/iw_handler.h>
19896+#include <linux/netdevice.h>
19897+#include <linux/ioport.h>
19898+#include <linux/pci.h>
19899+#include <linux/platform_device.h>
19900+#include <linux/pm.h>
19901+#include <linux/vmalloc.h>
19902+#include <linux/delay.h>
19903+#include <linux/workqueue.h>
19904+#include <linux/inetdevice.h>
19905+
19906+#include "acx.h"
19907+#include "acx_hw.h"
19908+
19909+/***********************************************************************
19910+*/
19911+
19912+#define CARD_EEPROM_ID_SIZE 6
19913+
19914+#include <asm/io.h>
19915+
19916+#define REG_ACX_VENDOR_ID 0x900
19917+/*
19918+ * This is the vendor id on the HX4700, anyway
19919+ */
19920+#define ACX_VENDOR_ID 0x8400104c
19921+
19922+typedef enum {
19923+ ACX_SOFT_RESET = 0,
19924+
19925+ ACX_SLV_REG_ADDR,
19926+ ACX_SLV_REG_DATA,
19927+ ACX_SLV_REG_ADATA,
19928+
19929+ ACX_SLV_MEM_CP,
19930+ ACX_SLV_MEM_ADDR,
19931+ ACX_SLV_MEM_DATA,
19932+ ACX_SLV_MEM_CTL,
19933+} acxreg_t;
19934+
19935+/***********************************************************************
19936+*/
19937+static void acxmem_i_tx_timeout(struct net_device *ndev);
19938+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
19939+static irqreturn_t acxmem_i_interrupt(int irq, void *dev_id);
19940+#else
19941+static irqreturn_t acxmem_i_interrupt(int irq, void *dev_id, struct pt_regs *regs);
19942+#endif
19943+static void acxmem_i_set_multicast_list(struct net_device *ndev);
19944+
19945+static int acxmem_e_open(struct net_device *ndev);
19946+static int acxmem_e_close(struct net_device *ndev);
19947+static void acxmem_s_up(struct net_device *ndev);
19948+static void acxmem_s_down(struct net_device *ndev);
19949+
19950+static void dump_acxmem (acx_device_t *adev, u32 start, int length);
19951+static int acxmem_complete_hw_reset (acx_device_t *adev);
19952+static void acxmem_s_delete_dma_regions(acx_device_t *adev);
19953+
19954+static struct platform_device *resume_pdev;
19955+
19956+static int
19957+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
19958+acxmem_e_suspend(struct platform_device *pdev, pm_message_t state);
19959+#else
19960+acxmem_e_suspend(struct device *pdev, u32 state);
19961+#endif
19962+static void
19963+fw_resumer(struct work_struct *notused);
19964+//fw_resumer( void *data );
19965+
19966+static int acx_netdev_event(struct notifier_block *this, unsigned long event, void *ptr)
19967+{
19968+ struct net_device *ndev = ptr;
19969+ acx_device_t *adev = ndev2adev(ndev);
19970+
19971+ /*
19972+ * Upper level ioctl() handlers send a NETDEV_CHANGEADDR if the MAC address changes.
19973+ */
19974+
19975+ if (NETDEV_CHANGEADDR == event) {
19976+ /*
19977+ * the upper layers put the new MAC address in ndev->dev_addr; we just copy
19978+ * it over and update the ACX with it.
19979+ */
19980+ MAC_COPY(adev->dev_addr, adev->ndev->dev_addr);
19981+ adev->set_mask |= GETSET_STATION_ID;
19982+ acx_s_update_card_settings (adev);
19983+ }
19984+
19985+ return 0;
19986+}
19987+
19988+static struct notifier_block acx_netdev_notifier = {
19989+ .notifier_call = acx_netdev_event,
19990+};
19991+
19992+/***********************************************************************
19993+** Register access
19994+*/
19995+
19996+/* Pick one */
19997+/* #define INLINE_IO static */
19998+#define INLINE_IO static inline
19999+
20000+INLINE_IO u32
20001+read_id_register (acx_device_t *adev)
20002+{
20003+ writel (0x24, &adev->iobase[ACX_SLV_REG_ADDR]);
20004+ return readl (&adev->iobase[ACX_SLV_REG_DATA]);
20005+}
20006+
20007+INLINE_IO u32
20008+read_reg32(acx_device_t *adev, unsigned int offset)
20009+{
20010+ u32 val;
20011+ u32 addr;
20012+
20013+ if (offset > IO_ACX_ECPU_CTRL)
20014+ addr = offset;
20015+ else
20016+ addr = adev->io[offset];
20017+
20018+ if (addr < 0x20) {
20019+ return readl(((u8*)adev->iobase) + addr);
20020+ }
20021+
20022+ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
20023+ val = readl( &adev->iobase[ACX_SLV_REG_DATA] );
20024+
20025+ return val;
20026+}
20027+
20028+INLINE_IO u16
20029+read_reg16(acx_device_t *adev, unsigned int offset)
20030+{
20031+ u16 lo;
20032+ u32 addr;
20033+
20034+ if (offset > IO_ACX_ECPU_CTRL)
20035+ addr = offset;
20036+ else
20037+ addr = adev->io[offset];
20038+
20039+ if (addr < 0x20) {
20040+ return readw(((u8 *) adev->iobase) + addr);
20041+ }
20042+
20043+ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
20044+ lo = readw( (u16 *)&adev->iobase[ACX_SLV_REG_DATA] );
20045+
20046+ return lo;
20047+}
20048+
20049+INLINE_IO u8
20050+read_reg8(acx_device_t *adev, unsigned int offset)
20051+{
20052+ u8 lo;
20053+ u32 addr;
20054+
20055+ if (offset > IO_ACX_ECPU_CTRL)
20056+ addr = offset;
20057+ else
20058+ addr = adev->io[offset];
20059+
20060+ if (addr < 0x20)
20061+ return readb(((u8 *)adev->iobase) + addr);
20062+
20063+ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
20064+ lo = readw( (u8 *)&adev->iobase[ACX_SLV_REG_DATA] );
20065+
20066+ return (u8)lo;
20067+}
20068+
20069+INLINE_IO void
20070+write_reg32(acx_device_t *adev, unsigned int offset, u32 val)
20071+{
20072+ u32 addr;
20073+
20074+ if (offset > IO_ACX_ECPU_CTRL)
20075+ addr = offset;
20076+ else
20077+ addr = adev->io[offset];
20078+
20079+ if (addr < 0x20) {
20080+ writel(val, ((u8*)adev->iobase) + addr);
20081+ return;
20082+ }
20083+
20084+ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
20085+ writel( val, &adev->iobase[ACX_SLV_REG_DATA] );
20086+}
20087+
20088+INLINE_IO void
20089+write_reg16(acx_device_t *adev, unsigned int offset, u16 val)
20090+{
20091+ u32 addr;
20092+
20093+ if (offset > IO_ACX_ECPU_CTRL)
20094+ addr = offset;
20095+ else
20096+ addr = adev->io[offset];
20097+
20098+ if (addr < 0x20) {
20099+ writew(val, ((u8 *)adev->iobase) + addr);
20100+ return;
20101+ }
20102+ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
20103+ writew( val, (u16 *) &adev->iobase[ACX_SLV_REG_DATA] );
20104+}
20105+
20106+INLINE_IO void
20107+write_reg8(acx_device_t *adev, unsigned int offset, u8 val)
20108+{
20109+ u32 addr;
20110+
20111+ if (offset > IO_ACX_ECPU_CTRL)
20112+ addr = offset;
20113+ else
20114+ addr = adev->io[offset];
20115+
20116+ if (addr < 0x20) {
20117+ writeb(val, ((u8 *) adev->iobase) + addr);
20118+ return;
20119+ }
20120+ writel( addr, &adev->iobase[ACX_SLV_REG_ADDR] );
20121+ writeb( val, (u8 *)&adev->iobase[ACX_SLV_REG_DATA] );
20122+}
20123+
20124+/* Handle PCI posting properly:
20125+ * Make sure that writes reach the adapter in case they require to be executed
20126+ * *before* the next write, by reading a random (and safely accessible) register.
20127+ * This call has to be made if there is no read following (which would flush the data
20128+ * to the adapter), yet the written data has to reach the adapter immediately. */
20129+INLINE_IO void
20130+write_flush(acx_device_t *adev)
20131+{
20132+ /* readb(adev->iobase + adev->io[IO_ACX_INFO_MAILBOX_OFFS]); */
20133+ /* faster version (accesses the first register, IO_ACX_SOFT_RESET,
20134+ * which should also be safe): */
20135+ (void) readl(adev->iobase);
20136+}
20137+
20138+INLINE_IO void
20139+set_regbits (acx_device_t *adev, unsigned int offset, u32 bits) {
20140+ u32 tmp;
20141+
20142+ tmp = read_reg32 (adev, offset);
20143+ tmp = tmp | bits;
20144+ write_reg32 (adev, offset, tmp);
20145+ write_flush (adev);
20146+}
20147+
20148+INLINE_IO void
20149+clear_regbits (acx_device_t *adev, unsigned int offset, u32 bits) {
20150+ u32 tmp;
20151+
20152+ tmp = read_reg32 (adev, offset);
20153+ tmp = tmp & ~bits;
20154+ write_reg32 (adev, offset, tmp);
20155+ write_flush (adev);
20156+}
20157+
20158+/*
20159+ * Copy from PXA memory to the ACX memory. This assumes both the PXA and ACX
20160+ * addresses are 32 bit aligned. Count is in bytes.
20161+ */
20162+INLINE_IO void
20163+write_slavemem32 (acx_device_t *adev, u32 slave_address, u32 val)
20164+{
20165+ write_reg32 (adev, IO_ACX_SLV_MEM_CTL, 0x0);
20166+ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, slave_address);
20167+ udelay (10);
20168+ write_reg32 (adev, IO_ACX_SLV_MEM_DATA, val);
20169+}
20170+
20171+INLINE_IO u32
20172+read_slavemem32 (acx_device_t *adev, u32 slave_address)
20173+{
20174+ u32 val;
20175+
20176+ write_reg32 (adev, IO_ACX_SLV_MEM_CTL, 0x0);
20177+ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, slave_address);
20178+ udelay (10);
20179+ val = read_reg32 (adev, IO_ACX_SLV_MEM_DATA);
20180+
20181+ return val;
20182+}
20183+
20184+INLINE_IO void
20185+write_slavemem8 (acx_device_t *adev, u32 slave_address, u8 val)
20186+{
20187+ u32 data;
20188+ u32 base;
20189+ int offset;
20190+
20191+ /*
20192+ * Get the word containing the target address and the byte offset in that word.
20193+ */
20194+ base = slave_address & ~3;
20195+ offset = (slave_address & 3) * 8;
20196+
20197+ data = read_slavemem32 (adev, base);
20198+ data &= ~(0xff << offset);
20199+ data |= val << offset;
20200+ write_slavemem32 (adev, base, data);
20201+}
20202+
20203+INLINE_IO u8
20204+read_slavemem8 (acx_device_t *adev, u32 slave_address)
20205+{
20206+ u8 val;
20207+ u32 base;
20208+ u32 data;
20209+ int offset;
20210+
20211+ base = slave_address & ~3;
20212+ offset = (slave_address & 3) * 8;
20213+
20214+ data = read_slavemem32 (adev, base);
20215+
20216+ val = (data >> offset) & 0xff;
20217+
20218+ return val;
20219+}
20220+
20221+/*
20222+ * doesn't split across word boundaries
20223+ */
20224+INLINE_IO void
20225+write_slavemem16 (acx_device_t *adev, u32 slave_address, u16 val)
20226+{
20227+ u32 data;
20228+ u32 base;
20229+ int offset;
20230+
20231+ /*
20232+ * Get the word containing the target address and the byte offset in that word.
20233+ */
20234+ base = slave_address & ~3;
20235+ offset = (slave_address & 3) * 8;
20236+
20237+ data = read_slavemem32 (adev, base);
20238+ data &= ~(0xffff << offset);
20239+ data |= val << offset;
20240+ write_slavemem32 (adev, base, data);
20241+}
20242+
20243+/*
20244+ * doesn't split across word boundaries
20245+ */
20246+INLINE_IO u16
20247+read_slavemem16 (acx_device_t *adev, u32 slave_address)
20248+{
20249+ u16 val;
20250+ u32 base;
20251+ u32 data;
20252+ int offset;
20253+
20254+ base = slave_address & ~3;
20255+ offset = (slave_address & 3) * 8;
20256+
20257+ data = read_slavemem32 (adev, base);
20258+
20259+ val = (data >> offset) & 0xffff;
20260+
20261+ return val;
20262+}
20263+
20264+/*
20265+ * Copy from slave memory
20266+ *
20267+ * TODO - rewrite using address autoincrement, handle partial words
20268+ */
20269+void
20270+copy_from_slavemem (acx_device_t *adev, u8 *destination, u32 source, int count) {
20271+ u32 tmp = 0;
20272+ u8 *ptmp = (u8 *) &tmp;
20273+
20274+ /*
20275+ * Right now I'm making the assumption that the destination is aligned, but
20276+ * I'd better check.
20277+ */
20278+ if ((u32) destination & 3) {
20279+ printk ("acx copy_from_slavemem: warning! destination not word-aligned!\n");
20280+ }
20281+
20282+ while (count >= 4) {
20283+ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, source);
20284+ udelay (10);
20285+ *((u32 *) destination) = read_reg32 (adev, IO_ACX_SLV_MEM_DATA);
20286+ count -= 4;
20287+ source += 4;
20288+ destination += 4;
20289+ }
20290+
20291+ /*
20292+ * If the word reads above didn't satisfy the count, read one more word
20293+ * and transfer a byte at a time until the request is satisfied.
20294+ */
20295+ if (count) {
20296+ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, source);
20297+ udelay (10);
20298+ tmp = read_reg32 (adev, IO_ACX_SLV_MEM_DATA);
20299+ while (count--) {
20300+ *destination++ = *ptmp++;
20301+ }
20302+ }
20303+}
20304+
20305+/*
20306+ * Copy to slave memory
20307+ *
20308+ * TODO - rewrite using autoincrement, handle partial words
20309+ */
20310+void
20311+copy_to_slavemem (acx_device_t *adev, u32 destination, u8 *source, int count)
20312+{
20313+ u32 tmp = 0;
20314+ u8* ptmp = (u8 *) &tmp;
20315+ static u8 src[512]; /* make static to avoid huge stack objects */
20316+
20317+ /*
20318+ * For now, make sure the source is word-aligned by copying it to a word-aligned
20319+ * buffer. Someday rewrite to avoid the extra copy.
20320+ */
20321+ if (count > sizeof (src)) {
20322+ printk ("acx copy_to_slavemem: Warning! buffer overflow!\n");
20323+ count = sizeof (src);
20324+ }
20325+ memcpy (src, source, count);
20326+ source = src;
20327+
20328+ while (count >= 4) {
20329+ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, destination);
20330+ udelay (10);
20331+ write_reg32 (adev, IO_ACX_SLV_MEM_DATA, *((u32 *) source));
20332+ count -= 4;
20333+ source += 4;
20334+ destination += 4;
20335+ }
20336+
20337+ /*
20338+ * If there are leftovers read the next word from the acx and merge in
20339+ * what they want to write.
20340+ */
20341+ if (count) {
20342+ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, destination);
20343+ udelay (10);
20344+ tmp = read_reg32 (adev, IO_ACX_SLV_MEM_DATA);
20345+ while (count--) {
20346+ *ptmp++ = *source++;
20347+ }
20348+ /*
20349+ * reset address in case we're currently in auto-increment mode
20350+ */
20351+ write_reg32 (adev, IO_ACX_SLV_MEM_ADDR, destination);
20352+ udelay (10);
20353+ write_reg32 (adev, IO_ACX_SLV_MEM_DATA, tmp);
20354+ udelay (10);
20355+ }
20356+
20357+}
20358+
20359+/*
20360+ * Block copy to slave buffers using memory block chain mode. Copies to the ACX
20361+ * transmit buffer structure with minimal intervention on our part.
20362+ * Interrupts should be disabled when calling this.
20363+ */
20364+void
20365+chaincopy_to_slavemem (acx_device_t *adev, u32 destination, u8 *source, int count)
20366+{
20367+ u32 val;
20368+ u32 *data = (u32 *) source;
20369+ static u8 aligned_source[WLAN_A4FR_MAXLEN_WEP_FCS];
20370+
20371+ /*
20372+ * Warn if the pointers don't look right. Destination must fit in [23:5] with
20373+ * zero elsewhere and source should be 32 bit aligned.
20374+ * This should never happen since we're in control of both, but I want to know about
20375+ * it if it does.
20376+ */
20377+ if ((destination & 0x00ffffe0) != destination) {
20378+ printk ("acx chaincopy: destination block 0x%04x not aligned!\n", destination);
20379+ }
20380+ if (count > sizeof aligned_source) {
20381+ printk( KERN_ERR "chaincopy_to_slavemem overflow!\n" );
20382+ count = sizeof aligned_source;
20383+ }
20384+ if ((u32) source & 3) {
20385+ memcpy (aligned_source, source, count);
20386+ data = (u32 *) aligned_source;
20387+ }
20388+
20389+ /*
20390+ * SLV_MEM_CTL[17:16] = memory block chain mode with auto-increment
20391+ * SLV_MEM_CTL[5:2] = offset to data portion = 1 word
20392+ */
20393+ val = 2 << 16 | 1 << 2;
20394+ writel (val, &adev->iobase[ACX_SLV_MEM_CTL]);
20395+
20396+ /*
20397+ * SLV_MEM_CP[23:5] = start of 1st block
20398+ * SLV_MEM_CP[3:2] = offset to memblkptr = 0
20399+ */
20400+ val = destination & 0x00ffffe0;
20401+ writel (val, &adev->iobase[ACX_SLV_MEM_CP]);
20402+
20403+ /*
20404+ * SLV_MEM_ADDR[23:2] = SLV_MEM_CTL[5:2] + SLV_MEM_CP[23:5]
20405+ */
20406+ val = (destination & 0x00ffffe0) + (1<<2);
20407+ writel (val, &adev->iobase[ACX_SLV_MEM_ADDR]);
20408+
20409+ /*
20410+ * Write the data to the slave data register, rounding up to the end
20411+ * of the word containing the last byte (hence the > 0)
20412+ */
20413+ while (count > 0) {
20414+ writel (*data++, &adev->iobase[ACX_SLV_MEM_DATA]);
20415+ count -= 4;
20416+ }
20417+}
20418+
20419+
20420+/*
20421+ * Block copy from slave buffers using memory block chain mode. Copies from the ACX
20422+ * receive buffer structures with minimal intervention on our part.
20423+ * Interrupts should be disabled when calling this.
20424+ */
20425+void
20426+chaincopy_from_slavemem (acx_device_t *adev, u8 *destination, u32 source, int count)
20427+{
20428+ u32 val;
20429+ u32 *data = (u32 *) destination;
20430+ static u8 aligned_destination[WLAN_A4FR_MAXLEN_WEP_FCS];
20431+ int saved_count = count;
20432+
20433+ /*
20434+ * Warn if the pointers don't look right. Destination must fit in [23:5] with
20435+ * zero elsewhere and source should be 32 bit aligned.
20436+ * Turns out the network stack sends unaligned things, so fix them before
20437+ * copying to the ACX.
20438+ */
20439+ if ((source & 0x00ffffe0) != source) {
20440+ printk ("acx chaincopy: source block 0x%04x not aligned!\n", source);
20441+ dump_acxmem (adev, 0, 0x10000);
20442+ }
20443+ if ((u32) destination & 3) {
20444+ //printk ("acx chaincopy: data destination not word aligned!\n");
20445+ data = (u32 *) aligned_destination;
20446+ if (count > sizeof aligned_destination) {
20447+ printk( KERN_ERR "chaincopy_from_slavemem overflow!\n" );
20448+ count = sizeof aligned_destination;
20449+ }
20450+ }
20451+
20452+ /*
20453+ * SLV_MEM_CTL[17:16] = memory block chain mode with auto-increment
20454+ * SLV_MEM_CTL[5:2] = offset to data portion = 1 word
20455+ */
20456+ val = (2 << 16) | (1 << 2);
20457+ writel (val, &adev->iobase[ACX_SLV_MEM_CTL]);
20458+
20459+ /*
20460+ * SLV_MEM_CP[23:5] = start of 1st block
20461+ * SLV_MEM_CP[3:2] = offset to memblkptr = 0
20462+ */
20463+ val = source & 0x00ffffe0;
20464+ writel (val, &adev->iobase[ACX_SLV_MEM_CP]);
20465+
20466+ /*
20467+ * SLV_MEM_ADDR[23:2] = SLV_MEM_CTL[5:2] + SLV_MEM_CP[23:5]
20468+ */
20469+ val = (source & 0x00ffffe0) + (1<<2);
20470+ writel (val, &adev->iobase[ACX_SLV_MEM_ADDR]);
20471+
20472+ /*
20473+ * Read the data from the slave data register, rounding up to the end
20474+ * of the word containing the last byte (hence the > 0)
20475+ */
20476+ while (count > 0) {
20477+ *data++ = readl (&adev->iobase[ACX_SLV_MEM_DATA]);
20478+ count -= 4;
20479+ }
20480+
20481+ /*
20482+ * If the destination wasn't aligned, we would have saved it in
20483+ * the aligned buffer, so copy it where it should go.
20484+ */
20485+ if ((u32) destination & 3) {
20486+ memcpy (destination, aligned_destination, saved_count);
20487+ }
20488+}
20489+
20490+char
20491+printable (char c)
20492+{
20493+ return ((c >= 20) && (c < 127)) ? c : '.';
20494+}
20495+
20496+#if DUMP_MEM_DEFINED > 0
20497+static void
20498+dump_acxmem (acx_device_t *adev, u32 start, int length)
20499+{
20500+ int i;
20501+ u8 buf[16];
20502+
20503+ while (length > 0) {
20504+ printk ("%04x ", start);
20505+ copy_from_slavemem (adev, buf, start, 16);
20506+ for (i = 0; (i < 16) && (i < length); i++) {
20507+ printk ("%02x ", buf[i]);
20508+ }
20509+ for (i = 0; (i < 16) && (i < length); i++) {
20510+ printk ("%c", printable (buf[i]));
20511+ }
20512+ printk ("\n");
20513+ start += 16;
20514+ length -= 16;
20515+ }
20516+}
20517+#endif
20518+
20519+static void
20520+enable_acx_irq(acx_device_t *adev);
20521+static void
20522+disable_acx_irq(acx_device_t *adev);
20523+
20524+/*
20525+ * Return an acx pointer to the next transmit data block.
20526+ */
20527+u32
20528+allocate_acx_txbuf_space (acx_device_t *adev, int count) {
20529+ u32 block, next, last_block;
20530+ int blocks_needed;
20531+ unsigned long flags;
20532+
20533+ spin_lock_irqsave(&adev->txbuf_lock, flags);
20534+ /*
20535+ * Take 4 off the memory block size to account for the reserved word at the start of
20536+ * the block.
20537+ */
20538+ blocks_needed = count / (adev->memblocksize - 4);
20539+ if (count % (adev->memblocksize - 4))
20540+ blocks_needed++;
20541+
20542+ if (blocks_needed <= adev->acx_txbuf_blocks_free) {
20543+ /*
20544+ * Take blocks at the head of the free list.
20545+ */
20546+ last_block = block = adev->acx_txbuf_free;
20547+
20548+ /*
20549+ * Follow block pointers through the requested number of blocks both to
20550+ * find the new head of the free list and to set the flags for the blocks
20551+ * appropriately.
20552+ */
20553+ while (blocks_needed--) {
20554+ /*
20555+ * Keep track of the last block of the allocation
20556+ */
20557+ last_block = adev->acx_txbuf_free;
20558+
20559+ /*
20560+ * Make sure the end control flag is not set.
20561+ */
20562+ next = read_slavemem32 (adev, adev->acx_txbuf_free) & 0x7ffff;
20563+ write_slavemem32 (adev, adev->acx_txbuf_free, next);
20564+
20565+ /*
20566+ * Update the new head of the free list
20567+ */
20568+ adev->acx_txbuf_free = next << 5;
20569+ adev->acx_txbuf_blocks_free--;
20570+
20571+ }
20572+
20573+ /*
20574+ * Flag the last block both by clearing out the next pointer
20575+ * and marking the control field.
20576+ */
20577+ write_slavemem32 (adev, last_block, 0x02000000);
20578+
20579+ /*
20580+ * If we're out of buffers make sure the free list pointer is NULL
20581+ */
20582+ if (!adev->acx_txbuf_blocks_free) {
20583+ adev->acx_txbuf_free = 0;
20584+ }
20585+ }
20586+ else {
20587+ block = 0;
20588+ }
20589+ spin_unlock_irqrestore (&adev->txbuf_lock, flags);
20590+ return block;
20591+}
20592+
20593+/*
20594+ * Return buffer space back to the pool by following the next pointers until we find
20595+ * the block marked as the end. Point the last block to the head of the free list,
20596+ * then update the head of the free list to point to the newly freed memory.
20597+ * This routine gets called in interrupt context, so it shouldn't block to protect
20598+ * the integrity of the linked list. The ISR already holds the lock.
20599+ */
20600+void
20601+reclaim_acx_txbuf_space (acx_device_t *adev, u32 blockptr) {
20602+ u32 cur, last, next;
20603+ unsigned long flags;
20604+
20605+ spin_lock_irqsave (&adev->txbuf_lock, flags);
20606+ if ((blockptr >= adev->acx_txbuf_start) &&
20607+ (blockptr <= adev->acx_txbuf_start +
20608+ (adev->acx_txbuf_numblocks - 1) * adev->memblocksize)) {
20609+ cur = blockptr;
20610+ do {
20611+ last = cur;
20612+ next = read_slavemem32 (adev, cur);
20613+
20614+ /*
20615+ * Advance to the next block in this allocation
20616+ */
20617+ cur = (next & 0x7ffff) << 5;
20618+
20619+ /*
20620+ * This block now counts as free.
20621+ */
20622+ adev->acx_txbuf_blocks_free++;
20623+ } while (!(next & 0x02000000));
20624+
20625+ /*
20626+ * last now points to the last block of that allocation. Update the pointer
20627+ * in that block to point to the free list and reset the free list to the
20628+ * first block of the free call. If there were no free blocks, make sure
20629+ * the new end of the list marks itself as truly the end.
20630+ */
20631+ if (adev->acx_txbuf_free) {
20632+ write_slavemem32 (adev, last, adev->acx_txbuf_free >> 5);
20633+ }
20634+ else {
20635+ write_slavemem32 (adev, last, 0x02000000);
20636+ }
20637+ adev->acx_txbuf_free = blockptr;
20638+ }
20639+ spin_unlock_irqrestore(&adev->txbuf_lock, flags);
20640+}
20641+
20642+/*
20643+ * Initialize the pieces managing the transmit buffer pool on the ACX. The transmit
20644+ * buffer is a circular queue with one 32 bit word reserved at the beginning of each
20645+ * block. The upper 13 bits are a control field, of which only 0x02000000 has any
20646+ * meaning. The lower 19 bits are the address of the next block divided by 32.
20647+ */
20648+void
20649+init_acx_txbuf (acx_device_t *adev) {
20650+
20651+ /*
20652+ * acx100_s_init_memory_pools set up txbuf_start and txbuf_numblocks for us.
20653+ * All we need to do is reset the rest of the bookeeping.
20654+ */
20655+
20656+ adev->acx_txbuf_free = adev->acx_txbuf_start;
20657+ adev->acx_txbuf_blocks_free = adev->acx_txbuf_numblocks;
20658+
20659+ /*
20660+ * Initialization leaves the last transmit pool block without a pointer back to
20661+ * the head of the list, but marked as the end of the list. That's how we want
20662+ * to see it, too, so leave it alone. This is only ever called after a firmware
20663+ * reset, so the ACX memory is in the state we want.
20664+ */
20665+
20666+}
20667+
20668+INLINE_IO int
20669+adev_present(acx_device_t *adev)
20670+{
20671+ /* fast version (accesses the first register, IO_ACX_SOFT_RESET,
20672+ * which should be safe): */
20673+ return readl(adev->iobase) != 0xffffffff;
20674+}
20675+
20676+/***********************************************************************
20677+*/
20678+static inline txdesc_t*
20679+get_txdesc(acx_device_t *adev, int index)
20680+{
20681+ return (txdesc_t*) (((u8*)adev->txdesc_start) + index * adev->txdesc_size);
20682+}
20683+
20684+static inline txdesc_t*
20685+advance_txdesc(acx_device_t *adev, txdesc_t* txdesc, int inc)
20686+{
20687+ return (txdesc_t*) (((u8*)txdesc) + inc * adev->txdesc_size);
20688+}
20689+
20690+static txhostdesc_t*
20691+get_txhostdesc(acx_device_t *adev, txdesc_t* txdesc)
20692+{
20693+ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
20694+ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) {
20695+ printk("bad txdesc ptr %p\n", txdesc);
20696+ return NULL;
20697+ }
20698+ index /= adev->txdesc_size;
20699+ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) {
20700+ printk("bad txdesc ptr %p\n", txdesc);
20701+ return NULL;
20702+ }
20703+ return &adev->txhostdesc_start[index*2];
20704+}
20705+
20706+static inline client_t*
20707+get_txc(acx_device_t *adev, txdesc_t* txdesc)
20708+{
20709+ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
20710+ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) {
20711+ printk("bad txdesc ptr %p\n", txdesc);
20712+ return NULL;
20713+ }
20714+ index /= adev->txdesc_size;
20715+ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) {
20716+ printk("bad txdesc ptr %p\n", txdesc);
20717+ return NULL;
20718+ }
20719+ return adev->txc[index];
20720+}
20721+
20722+static inline u16
20723+get_txr(acx_device_t *adev, txdesc_t* txdesc)
20724+{
20725+ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
20726+ index /= adev->txdesc_size;
20727+ return adev->txr[index];
20728+}
20729+
20730+static inline void
20731+put_txcr(acx_device_t *adev, txdesc_t* txdesc, client_t* c, u16 r111)
20732+{
20733+ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
20734+ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) {
20735+ printk("bad txdesc ptr %p\n", txdesc);
20736+ return;
20737+ }
20738+ index /= adev->txdesc_size;
20739+ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) {
20740+ printk("bad txdesc ptr %p\n", txdesc);
20741+ return;
20742+ }
20743+ adev->txc[index] = c;
20744+ adev->txr[index] = r111;
20745+}
20746+
20747+
20748+/***********************************************************************
20749+** EEPROM and PHY read/write helpers
20750+*/
20751+/***********************************************************************
20752+** acxmem_read_eeprom_byte
20753+**
20754+** Function called to read an octet in the EEPROM.
20755+**
20756+** This function is used by acxmem_e_probe to check if the
20757+** connected card is a legal one or not.
20758+**
20759+** Arguments:
20760+** adev ptr to acx_device structure
20761+** addr address to read in the EEPROM
20762+** charbuf ptr to a char. This is where the read octet
20763+** will be stored
20764+*/
20765+int
20766+acxmem_read_eeprom_byte(acx_device_t *adev, u32 addr, u8 *charbuf)
20767+{
20768+ int result;
20769+ int count;
20770+
20771+ write_reg32(adev, IO_ACX_EEPROM_CFG, 0);
20772+ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr);
20773+ write_flush(adev);
20774+ write_reg32(adev, IO_ACX_EEPROM_CTL, 2);
20775+
20776+ count = 0xffff;
20777+ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) {
20778+ /* scheduling away instead of CPU burning loop
20779+ * doesn't seem to work here at all:
20780+ * awful delay, sometimes also failure.
20781+ * Doesn't matter anyway (only small delay). */
20782+ if (unlikely(!--count)) {
20783+ printk("%s: timeout waiting for EEPROM read\n",
20784+ adev->ndev->name);
20785+ result = NOT_OK;
20786+ goto fail;
20787+ }
20788+ cpu_relax();
20789+ }
20790+
20791+ *charbuf = read_reg8(adev, IO_ACX_EEPROM_DATA);
20792+ log(L_DEBUG, "EEPROM at 0x%04X = 0x%02X\n", addr, *charbuf);
20793+ result = OK;
20794+
20795+fail:
20796+ return result;
20797+}
20798+
20799+
20800+/***********************************************************************
20801+** We don't lock hw accesses here since we never r/w eeprom in IRQ
20802+** Note: this function sleeps only because of GFP_KERNEL alloc
20803+*/
20804+#ifdef UNUSED
20805+int
20806+acxmem_s_write_eeprom(acx_device_t *adev, u32 addr, u32 len, const u8 *charbuf)
20807+{
20808+ u8 *data_verify = NULL;
20809+ unsigned long flags;
20810+ int count, i;
20811+ int result = NOT_OK;
20812+ u16 gpio_orig;
20813+
20814+ printk("acx: WARNING! I would write to EEPROM now. "
20815+ "Since I really DON'T want to unless you know "
20816+ "what you're doing (THIS CODE WILL PROBABLY "
20817+ "NOT WORK YET!), I will abort that now. And "
20818+ "definitely make sure to make a "
20819+ "/proc/driver/acx_wlan0_eeprom backup copy first!!! "
20820+ "(the EEPROM content includes the PCI config header!! "
20821+ "If you kill important stuff, then you WILL "
20822+ "get in trouble and people DID get in trouble already)\n");
20823+ return OK;
20824+
20825+ FN_ENTER;
20826+
20827+ data_verify = kmalloc(len, GFP_KERNEL);
20828+ if (!data_verify) {
20829+ goto end;
20830+ }
20831+
20832+ /* first we need to enable the OE (EEPROM Output Enable) GPIO line
20833+ * to be able to write to the EEPROM.
20834+ * NOTE: an EEPROM writing success has been reported,
20835+ * but you probably have to modify GPIO_OUT, too,
20836+ * and you probably need to activate a different GPIO
20837+ * line instead! */
20838+ gpio_orig = read_reg16(adev, IO_ACX_GPIO_OE);
20839+ write_reg16(adev, IO_ACX_GPIO_OE, gpio_orig & ~1);
20840+ write_flush(adev);
20841+
20842+ /* ok, now start writing the data out */
20843+ for (i = 0; i < len; i++) {
20844+ write_reg32(adev, IO_ACX_EEPROM_CFG, 0);
20845+ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr + i);
20846+ write_reg32(adev, IO_ACX_EEPROM_DATA, *(charbuf + i));
20847+ write_flush(adev);
20848+ write_reg32(adev, IO_ACX_EEPROM_CTL, 1);
20849+
20850+ count = 0xffff;
20851+ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) {
20852+ if (unlikely(!--count)) {
20853+ printk("WARNING, DANGER!!! "
20854+ "Timeout waiting for EEPROM write\n");
20855+ goto end;
20856+ }
20857+ cpu_relax();
20858+ }
20859+ }
20860+
20861+ /* disable EEPROM writing */
20862+ write_reg16(adev, IO_ACX_GPIO_OE, gpio_orig);
20863+ write_flush(adev);
20864+
20865+ /* now start a verification run */
20866+ for (i = 0; i < len; i++) {
20867+ write_reg32(adev, IO_ACX_EEPROM_CFG, 0);
20868+ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr + i);
20869+ write_flush(adev);
20870+ write_reg32(adev, IO_ACX_EEPROM_CTL, 2);
20871+
20872+ count = 0xffff;
20873+ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) {
20874+ if (unlikely(!--count)) {
20875+ printk("timeout waiting for EEPROM read\n");
20876+ goto end;
20877+ }
20878+ cpu_relax();
20879+ }
20880+
20881+ data_verify[i] = read_reg16(adev, IO_ACX_EEPROM_DATA);
20882+ }
20883+
20884+ if (0 == memcmp(charbuf, data_verify, len))
20885+ result = OK; /* read data matches, success */
20886+
20887+end:
20888+ kfree(data_verify);
20889+ FN_EXIT1(result);
20890+ return result;
20891+}
20892+#endif /* UNUSED */
20893+
20894+
20895+/***********************************************************************
20896+** acxmem_s_read_phy_reg
20897+**
20898+** Messing with rx/tx disabling and enabling here
20899+** (write_reg32(adev, IO_ACX_ENABLE, 0b000000xx)) kills traffic
20900+*/
20901+int
20902+acxmem_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf)
20903+{
20904+ int result = NOT_OK;
20905+ int count;
20906+
20907+ FN_ENTER;
20908+
20909+ write_reg32(adev, IO_ACX_PHY_ADDR, reg);
20910+ write_flush(adev);
20911+ write_reg32(adev, IO_ACX_PHY_CTL, 2);
20912+
20913+ count = 0xffff;
20914+ while (read_reg32(adev, IO_ACX_PHY_CTL)) {
20915+ /* scheduling away instead of CPU burning loop
20916+ * doesn't seem to work here at all:
20917+ * awful delay, sometimes also failure.
20918+ * Doesn't matter anyway (only small delay). */
20919+ if (unlikely(!--count)) {
20920+ printk("%s: timeout waiting for phy read\n",
20921+ adev->ndev->name);
20922+ *charbuf = 0;
20923+ goto fail;
20924+ }
20925+ cpu_relax();
20926+ }
20927+
20928+ log(L_DEBUG, "count was %u\n", count);
20929+ *charbuf = read_reg8(adev, IO_ACX_PHY_DATA);
20930+
20931+ log(L_DEBUG, "radio PHY at 0x%04X = 0x%02X\n", *charbuf, reg);
20932+ result = OK;
20933+ goto fail; /* silence compiler warning */
20934+fail:
20935+ FN_EXIT1(result);
20936+ return result;
20937+}
20938+
20939+
20940+/***********************************************************************
20941+*/
20942+int
20943+acxmem_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value)
20944+{
20945+ int count;
20946+ FN_ENTER;
20947+
20948+ /* mprusko said that 32bit accesses result in distorted sensitivity
20949+ * on his card. Unconfirmed, looks like it's not true (most likely since we
20950+ * now properly flush writes). */
20951+ write_reg32(adev, IO_ACX_PHY_DATA, value);
20952+ write_reg32(adev, IO_ACX_PHY_ADDR, reg);
20953+ write_flush(adev);
20954+ write_reg32(adev, IO_ACX_PHY_CTL, 1);
20955+ write_flush(adev);
20956+
20957+ count = 0xffff;
20958+ while (read_reg32(adev, IO_ACX_PHY_CTL)) {
20959+ /* scheduling away instead of CPU burning loop
20960+ * doesn't seem to work here at all:
20961+ * awful delay, sometimes also failure.
20962+ * Doesn't matter anyway (only small delay). */
20963+ if (unlikely(!--count)) {
20964+ printk("%s: timeout waiting for phy read\n",
20965+ adev->ndev->name);
20966+ goto fail;
20967+ }
20968+ cpu_relax();
20969+ }
20970+
20971+ log(L_DEBUG, "radio PHY write 0x%02X at 0x%04X\n", value, reg);
20972+ fail:
20973+ FN_EXIT1(OK);
20974+ return OK;
20975+}
20976+
20977+
20978+#define NO_AUTO_INCREMENT 1
20979+
20980+/***********************************************************************
20981+** acxmem_s_write_fw
20982+**
20983+** Write the firmware image into the card.
20984+**
20985+** Arguments:
20986+** adev wlan device structure
20987+** fw_image firmware image.
20988+**
20989+** Returns:
20990+** 1 firmware image corrupted
20991+** 0 success
20992+*/
20993+static int
20994+acxmem_s_write_fw(acx_device_t *adev, const firmware_image_t *fw_image, u32 offset)
20995+{
20996+ int len, size, checkMismatch = -1;
20997+ u32 sum, v32, tmp, id;
20998+ /* we skip the first four bytes which contain the control sum */
20999+ const u8 *p = (u8*)fw_image + 4;
21000+
21001+ /* start the image checksum by adding the image size value */
21002+ sum = p[0]+p[1]+p[2]+p[3];
21003+ p += 4;
21004+
21005+#ifdef NOPE
21006+#if NO_AUTO_INCREMENT
21007+ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 0); /* use basic mode */
21008+#else
21009+ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 1); /* use autoincrement mode */
21010+ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset); /* configure start address */
21011+ write_flush(adev);
21012+#endif
21013+#endif
21014+ len = 0;
21015+ size = le32_to_cpu(fw_image->size) & (~3);
21016+
21017+ while (likely(len < size)) {
21018+ v32 = be32_to_cpu(*(u32*)p);
21019+ sum += p[0]+p[1]+p[2]+p[3];
21020+ p += 4;
21021+ len += 4;
21022+
21023+#ifdef NOPE
21024+#if NO_AUTO_INCREMENT
21025+ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset + len - 4);
21026+ write_flush(adev);
21027+#endif
21028+ write_reg32(adev, IO_ACX_SLV_MEM_DATA, v32);
21029+ write_flush(adev);
21030+#endif
21031+ write_slavemem32 (adev, offset + len - 4, v32);
21032+
21033+ id = read_id_register (adev);
21034+
21035+ /*
21036+ * check the data written
21037+ */
21038+ tmp = read_slavemem32 (adev, offset + len - 4);
21039+ if (checkMismatch && (tmp != v32)) {
21040+ printk ("first data mismatch at 0x%08x good 0x%08x bad 0x%08x id 0x%08x\n",
21041+ offset + len - 4, v32, tmp, id);
21042+ checkMismatch = 0;
21043+ }
21044+ }
21045+ log(L_DEBUG, "firmware written, size:%d sum1:%x sum2:%x\n",
21046+ size, sum, le32_to_cpu(fw_image->chksum));
21047+
21048+ /* compare our checksum with the stored image checksum */
21049+ return (sum != le32_to_cpu(fw_image->chksum));
21050+}
21051+
21052+
21053+/***********************************************************************
21054+** acxmem_s_validate_fw
21055+**
21056+** Compare the firmware image given with
21057+** the firmware image written into the card.
21058+**
21059+** Arguments:
21060+** adev wlan device structure
21061+** fw_image firmware image.
21062+**
21063+** Returns:
21064+** NOT_OK firmware image corrupted or not correctly written
21065+** OK success
21066+*/
21067+static int
21068+acxmem_s_validate_fw(acx_device_t *adev, const firmware_image_t *fw_image,
21069+ u32 offset)
21070+{
21071+ u32 sum, v32, w32;
21072+ int len, size;
21073+ int result = OK;
21074+ /* we skip the first four bytes which contain the control sum */
21075+ const u8 *p = (u8*)fw_image + 4;
21076+
21077+ /* start the image checksum by adding the image size value */
21078+ sum = p[0]+p[1]+p[2]+p[3];
21079+ p += 4;
21080+
21081+ write_reg32(adev, IO_ACX_SLV_END_CTL, 0);
21082+
21083+#if NO_AUTO_INCREMENT
21084+ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 0); /* use basic mode */
21085+#else
21086+ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 1); /* use autoincrement mode */
21087+ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset); /* configure start address */
21088+#endif
21089+
21090+ len = 0;
21091+ size = le32_to_cpu(fw_image->size) & (~3);
21092+
21093+ while (likely(len < size)) {
21094+ v32 = be32_to_cpu(*(u32*)p);
21095+ p += 4;
21096+ len += 4;
21097+
21098+#ifdef NOPE
21099+#if NO_AUTO_INCREMENT
21100+ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset + len - 4);
21101+#endif
21102+ udelay(10);
21103+ w32 = read_reg32(adev, IO_ACX_SLV_MEM_DATA);
21104+#endif
21105+ w32 = read_slavemem32 (adev, offset + len - 4);
21106+
21107+ if (unlikely(w32 != v32)) {
21108+ printk("acx: FATAL: firmware upload: "
21109+ "data parts at offset %d don't match\n(0x%08X vs. 0x%08X)!\n"
21110+ "I/O timing issues or defective memory, with DWL-xx0+? "
21111+ "ACX_IO_WIDTH=16 may help. Please report\n",
21112+ len, v32, w32);
21113+ result = NOT_OK;
21114+ break;
21115+ }
21116+
21117+ sum += (u8)w32 + (u8)(w32>>8) + (u8)(w32>>16) + (u8)(w32>>24);
21118+ }
21119+
21120+ /* sum control verification */
21121+ if (result != NOT_OK) {
21122+ if (sum != le32_to_cpu(fw_image->chksum)) {
21123+ printk("acx: FATAL: firmware upload: "
21124+ "checksums don't match!\n");
21125+ result = NOT_OK;
21126+ }
21127+ }
21128+
21129+ return result;
21130+}
21131+
21132+
21133+/***********************************************************************
21134+** acxmem_s_upload_fw
21135+**
21136+** Called from acx_reset_dev
21137+*/
21138+static int
21139+acxmem_s_upload_fw(acx_device_t *adev)
21140+{
21141+ firmware_image_t *fw_image = NULL;
21142+ int res = NOT_OK;
21143+ int try;
21144+ u32 file_size;
21145+ char *filename = "WLANGEN.BIN";
21146+#ifdef PATCH_AROUND_BAD_SPOTS
21147+ u32 offset;
21148+ int i;
21149+ /*
21150+ * arm-linux-objdump -d patch.bin, or
21151+ * od -Ax -t x4 patch.bin after finding the bounds
21152+ * of the .text section with arm-linux-objdump -s patch.bin
21153+ */
21154+ u32 patch[] = {
21155+ 0xe584c030, 0xe59fc008,
21156+ 0xe92d1000, 0xe59fc004, 0xe8bd8000, 0x0000080c,
21157+ 0x0000aa68, 0x605a2200, 0x2c0a689c, 0x2414d80a,
21158+ 0x2f00689f, 0x1c27d007, 0x06241e7c, 0x2f000e24,
21159+ 0xe000d1f6, 0x602e6018, 0x23036468, 0x480203db,
21160+ 0x60ca6003, 0xbdf0750a, 0xffff0808
21161+ };
21162+#endif
21163+
21164+ FN_ENTER;
21165+ /* No combined image; tell common we need the radio firmware, too */
21166+ adev->need_radio_fw = 1;
21167+
21168+ fw_image = acx_s_read_fw(adev->dev, filename, &file_size);
21169+ if (!fw_image) {
21170+ FN_EXIT1(NOT_OK);
21171+ return NOT_OK;
21172+ }
21173+
21174+ for (try = 1; try <= 5; try++) {
21175+ res = acxmem_s_write_fw(adev, fw_image, 0);
21176+ log(L_DEBUG|L_INIT, "acx_write_fw (main): %d\n", res);
21177+ if (OK == res) {
21178+ res = acxmem_s_validate_fw(adev, fw_image, 0);
21179+ log(L_DEBUG|L_INIT, "acx_validate_fw "
21180+ "(main): %d\n", res);
21181+ }
21182+
21183+ if (OK == res) {
21184+ SET_BIT(adev->dev_state_mask, ACX_STATE_FW_LOADED);
21185+ break;
21186+ }
21187+ printk("acx: firmware upload attempt #%d FAILED, "
21188+ "retrying...\n", try);
21189+ acx_s_msleep(1000); /* better wait for a while... */
21190+ }
21191+
21192+#ifdef PATCH_AROUND_BAD_SPOTS
21193+ /*
21194+ * Only want to do this if the firmware is exactly what we expect for an
21195+ * iPaq 4700; otherwise, bad things would ensue.
21196+ */
21197+ if ((HX4700_FIRMWARE_CHECKSUM == fw_image->chksum) ||
21198+ (HX4700_ALTERNATE_FIRMWARE_CHECKSUM == fw_image->chksum)) {
21199+ /*
21200+ * Put the patch after the main firmware image. 0x950c contains
21201+ * the ACX's idea of the end of the firmware. Use that location to
21202+ * load ours (which depends on that location being 0xab58) then
21203+ * update that location to point to after ours.
21204+ */
21205+
21206+ offset = read_slavemem32 (adev, 0x950c);
21207+
21208+ log (L_DEBUG, "acx: patching in at 0x%04x\n", offset);
21209+
21210+ for (i = 0; i < sizeof(patch) / sizeof(patch[0]); i++) {
21211+ write_slavemem32 (adev, offset, patch[i]);
21212+ offset += sizeof(u32);
21213+ }
21214+
21215+ /*
21216+ * Patch the instruction at 0x0804 to branch to our ARM patch at 0xab58
21217+ */
21218+ write_slavemem32 (adev, 0x0804, 0xea000000 + (0xab58-0x0804-8)/4);
21219+
21220+ /*
21221+ * Patch the instructions at 0x1f40 to branch to our Thumb patch at 0xab74
21222+ *
21223+ * 4a00 ldr r2, [pc, #0]
21224+ * 4710 bx r2
21225+ * .data 0xab74+1
21226+ */
21227+ write_slavemem32 (adev, 0x1f40, 0x47104a00);
21228+ write_slavemem32 (adev, 0x1f44, 0x0000ab74+1);
21229+
21230+ /*
21231+ * Bump the end of the firmware up to beyond our patch.
21232+ */
21233+ write_slavemem32 (adev, 0x950c, offset);
21234+
21235+ }
21236+#endif
21237+
21238+ vfree(fw_image);
21239+
21240+ FN_EXIT1(res);
21241+ return res;
21242+}
21243+
21244+
21245+/***********************************************************************
21246+** acxmem_s_upload_radio
21247+**
21248+** Uploads the appropriate radio module firmware into the card.
21249+*/
21250+int
21251+acxmem_s_upload_radio(acx_device_t *adev)
21252+{
21253+ acx_ie_memmap_t mm;
21254+ firmware_image_t *radio_image;
21255+ acx_cmd_radioinit_t radioinit;
21256+ int res = NOT_OK;
21257+ int try;
21258+ u32 offset;
21259+ u32 size;
21260+ char filename[sizeof("RADIONN.BIN")];
21261+
21262+ if (!adev->need_radio_fw) return OK;
21263+
21264+ FN_ENTER;
21265+
21266+ acx_s_interrogate(adev, &mm, ACX1xx_IE_MEMORY_MAP);
21267+ offset = le32_to_cpu(mm.CodeEnd);
21268+
21269+ snprintf(filename, sizeof(filename), "RADIO%02x.BIN",
21270+ adev->radio_type);
21271+ radio_image = acx_s_read_fw(adev->dev, filename, &size);
21272+ if (!radio_image) {
21273+ printk("acx: can't load radio module '%s'\n", filename);
21274+ goto fail;
21275+ }
21276+
21277+ acx_s_issue_cmd(adev, ACX1xx_CMD_SLEEP, NULL, 0);
21278+
21279+ for (try = 1; try <= 5; try++) {
21280+ res = acxmem_s_write_fw(adev, radio_image, offset);
21281+ log(L_DEBUG|L_INIT, "acx_write_fw (radio): %d\n", res);
21282+ if (OK == res) {
21283+ res = acxmem_s_validate_fw(adev, radio_image, offset);
21284+ log(L_DEBUG|L_INIT, "acx_validate_fw (radio): %d\n", res);
21285+ }
21286+
21287+ if (OK == res)
21288+ break;
21289+ printk("acx: radio firmware upload attempt #%d FAILED, "
21290+ "retrying...\n", try);
21291+ acx_s_msleep(1000); /* better wait for a while... */
21292+ }
21293+
21294+ acx_s_issue_cmd(adev, ACX1xx_CMD_WAKE, NULL, 0);
21295+ radioinit.offset = cpu_to_le32(offset);
21296+
21297+ /* no endian conversion needed, remains in card CPU area: */
21298+ radioinit.len = radio_image->size;
21299+
21300+ vfree(radio_image);
21301+
21302+ if (OK != res)
21303+ goto fail;
21304+
21305+ /* will take a moment so let's have a big timeout */
21306+ acx_s_issue_cmd_timeo(adev, ACX1xx_CMD_RADIOINIT,
21307+ &radioinit, sizeof(radioinit), CMD_TIMEOUT_MS(1000));
21308+
21309+ res = acx_s_interrogate(adev, &mm, ACX1xx_IE_MEMORY_MAP);
21310+
21311+fail:
21312+ FN_EXIT1(res);
21313+ return res;
21314+}
21315+
21316+/***********************************************************************
21317+** acxmem_l_reset_mac
21318+**
21319+** MAC will be reset
21320+** Call context: reset_dev
21321+*/
21322+static void
21323+acxmem_l_reset_mac(acx_device_t *adev)
21324+{
21325+ int count;
21326+ FN_ENTER;
21327+
21328+ /* halt eCPU */
21329+ set_regbits (adev, IO_ACX_ECPU_CTRL, 0x1);
21330+
21331+ /* now do soft reset of eCPU, set bit */
21332+ set_regbits (adev, IO_ACX_SOFT_RESET, 0x1);
21333+ log(L_DEBUG, "%s: enable soft reset...\n", __func__);
21334+
21335+ /* Windows driver sleeps here for a while with this sequence */
21336+ for (count = 0; count < 200; count++) {
21337+ udelay (50);
21338+ }
21339+
21340+ /* now clear bit again: deassert eCPU reset */
21341+ log(L_DEBUG, "%s: disable soft reset and go to init mode...\n", __func__);
21342+ clear_regbits (adev, IO_ACX_SOFT_RESET, 0x1);
21343+
21344+ /* now start a burst read from initial EEPROM */
21345+ set_regbits (adev, IO_ACX_EE_START, 0x1);
21346+
21347+ /*
21348+ * Windows driver sleeps here for a while with this sequence
21349+ */
21350+ for (count = 0; count < 200; count++) {
21351+ udelay (50);
21352+ }
21353+
21354+ /* Windows driver writes 0x10000 to register 0x808 here */
21355+
21356+ write_reg32 (adev, 0x808, 0x10000);
21357+
21358+ FN_EXIT0;
21359+}
21360+
21361+
21362+/***********************************************************************
21363+** acxmem_s_verify_init
21364+*/
21365+static int
21366+acxmem_s_verify_init(acx_device_t *adev)
21367+{
21368+ int result = NOT_OK;
21369+ unsigned long timeout;
21370+
21371+ FN_ENTER;
21372+
21373+ timeout = jiffies + 2*HZ;
21374+ for (;;) {
21375+ u32 irqstat = read_reg32(adev, IO_ACX_IRQ_STATUS_NON_DES);
21376+ if ((irqstat != 0xFFFFFFFF) && (irqstat & HOST_INT_FCS_THRESHOLD)) {
21377+ result = OK;
21378+ write_reg32(adev, IO_ACX_IRQ_ACK, HOST_INT_FCS_THRESHOLD);
21379+ break;
21380+ }
21381+ if (time_after(jiffies, timeout))
21382+ break;
21383+ /* Init may take up to ~0.5 sec total */
21384+ acx_s_msleep(50);
21385+ }
21386+
21387+ FN_EXIT1(result);
21388+ return result;
21389+}
21390+
21391+
21392+/***********************************************************************
21393+** A few low-level helpers
21394+**
21395+** Note: these functions are not protected by lock
21396+** and thus are never allowed to be called from IRQ.
21397+** Also they must not race with fw upload which uses same hw regs
21398+*/
21399+
21400+/***********************************************************************
21401+** acxmem_write_cmd_type_status
21402+*/
21403+
21404+static inline void
21405+acxmem_write_cmd_type_status(acx_device_t *adev, u16 type, u16 status)
21406+{
21407+ write_slavemem32 (adev, (u32) adev->cmd_area, type | (status << 16));
21408+ write_flush(adev);
21409+}
21410+
21411+
21412+/***********************************************************************
21413+** acxmem_read_cmd_type_status
21414+*/
21415+static u32
21416+acxmem_read_cmd_type_status(acx_device_t *adev)
21417+{
21418+ u32 cmd_type, cmd_status;
21419+
21420+ cmd_type = read_slavemem32 (adev, (u32) adev->cmd_area);
21421+
21422+ cmd_status = (cmd_type >> 16);
21423+ cmd_type = (u16)cmd_type;
21424+
21425+ log(L_CTL, "cmd_type:%04X cmd_status:%04X [%s]\n",
21426+ cmd_type, cmd_status,
21427+ acx_cmd_status_str(cmd_status));
21428+
21429+ return cmd_status;
21430+}
21431+
21432+
21433+/***********************************************************************
21434+** acxmem_s_reset_dev
21435+**
21436+** Arguments:
21437+** netdevice that contains the adev variable
21438+** Returns:
21439+** NOT_OK on fail
21440+** OK on success
21441+** Side effects:
21442+** device is hard reset
21443+** Call context:
21444+** acxmem_e_probe
21445+** Comment:
21446+** This resets the device using low level hardware calls
21447+** as well as uploads and verifies the firmware to the card
21448+*/
21449+
21450+static inline void
21451+init_mboxes(acx_device_t *adev)
21452+{
21453+ u32 cmd_offs, info_offs;
21454+
21455+ cmd_offs = read_reg32(adev, IO_ACX_CMD_MAILBOX_OFFS);
21456+ info_offs = read_reg32(adev, IO_ACX_INFO_MAILBOX_OFFS);
21457+ adev->cmd_area = (u8*) cmd_offs;
21458+ adev->info_area = (u8*) info_offs;
21459+ /*
21460+ log(L_DEBUG, "iobase2=%p\n"
21461+ */
21462+ log( L_DEBUG, "cmd_mbox_offset=%X cmd_area=%p\n"
21463+ "info_mbox_offset=%X info_area=%p\n",
21464+ cmd_offs, adev->cmd_area,
21465+ info_offs, adev->info_area);
21466+}
21467+
21468+
21469+static inline void
21470+read_eeprom_area(acx_device_t *adev)
21471+{
21472+#if ACX_DEBUG > 1
21473+ int offs;
21474+ u8 tmp;
21475+
21476+ for (offs = 0x8c; offs < 0xb9; offs++)
21477+ acxmem_read_eeprom_byte(adev, offs, &tmp);
21478+#endif
21479+}
21480+
21481+static int
21482+acxmem_s_reset_dev(acx_device_t *adev)
21483+{
21484+ const char* msg = "";
21485+ unsigned long flags;
21486+ int result = NOT_OK;
21487+ u16 hardware_info;
21488+ u16 ecpu_ctrl;
21489+ int count;
21490+ u32 tmp;
21491+
21492+ FN_ENTER;
21493+ /*
21494+ write_reg32 (adev, IO_ACX_SLV_MEM_CP, 0);
21495+ */
21496+ /* reset the device to make sure the eCPU is stopped
21497+ * to upload the firmware correctly */
21498+
21499+ acx_lock(adev, flags);
21500+
21501+ /* Windows driver does some funny things here */
21502+ /*
21503+ * clear bit 0x200 in register 0x2A0
21504+ */
21505+ clear_regbits (adev, 0x2A0, 0x200);
21506+
21507+ /*
21508+ * Set bit 0x200 in ACX_GPIO_OUT
21509+ */
21510+ set_regbits (adev, IO_ACX_GPIO_OUT, 0x200);
21511+
21512+ /*
21513+ * read register 0x900 until its value is 0x8400104C, sleeping
21514+ * in between reads if it's not immediate
21515+ */
21516+ tmp = read_reg32 (adev, REG_ACX_VENDOR_ID);
21517+ count = 500;
21518+ while (count-- && (tmp != ACX_VENDOR_ID)) {
21519+ mdelay (10);
21520+ tmp = read_reg32 (adev, REG_ACX_VENDOR_ID);
21521+ }
21522+
21523+ /* end what Windows driver does */
21524+
21525+ acxmem_l_reset_mac(adev);
21526+
21527+ ecpu_ctrl = read_reg32(adev, IO_ACX_ECPU_CTRL) & 1;
21528+ if (!ecpu_ctrl) {
21529+ msg = "eCPU is already running. ";
21530+ goto end_unlock;
21531+ }
21532+
21533+#ifdef WE_DONT_NEED_THAT_DO_WE
21534+ if (read_reg16(adev, IO_ACX_SOR_CFG) & 2) {
21535+ /* eCPU most likely means "embedded CPU" */
21536+ msg = "eCPU did not start after boot from flash. ";
21537+ goto end_unlock;
21538+ }
21539+
21540+ /* check sense on reset flags */
21541+ if (read_reg16(adev, IO_ACX_SOR_CFG) & 0x10) {
21542+ printk("%s: eCPU did not start after boot (SOR), "
21543+ "is this fatal?\n", adev->ndev->name);
21544+ }
21545+#endif
21546+ /* scan, if any, is stopped now, setting corresponding IRQ bit */
21547+ adev->irq_status |= HOST_INT_SCAN_COMPLETE;
21548+
21549+ acx_unlock(adev, flags);
21550+
21551+ /* need to know radio type before fw load */
21552+ /* Need to wait for arrival of this information in a loop,
21553+ * most probably since eCPU runs some init code from EEPROM
21554+ * (started burst read in reset_mac()) which also
21555+ * sets the radio type ID */
21556+
21557+ count = 0xffff;
21558+ do {
21559+ hardware_info = read_reg16(adev, IO_ACX_EEPROM_INFORMATION);
21560+ if (!--count) {
21561+ msg = "eCPU didn't indicate radio type";
21562+ goto end_fail;
21563+ }
21564+ cpu_relax();
21565+ } while (!(hardware_info & 0xff00)); /* radio type still zero? */
21566+ printk("ACX radio type 0x%02x\n", (hardware_info >> 8) & 0xff);
21567+ /* printk("DEBUG: count %d\n", count); */
21568+ adev->form_factor = hardware_info & 0xff;
21569+ adev->radio_type = hardware_info >> 8;
21570+
21571+ /* load the firmware */
21572+ if (OK != acxmem_s_upload_fw(adev))
21573+ goto end_fail;
21574+
21575+ /* acx_s_msleep(10); this one really shouldn't be required */
21576+
21577+ /* now start eCPU by clearing bit */
21578+ clear_regbits (adev, IO_ACX_ECPU_CTRL, 0x1);
21579+ log(L_DEBUG, "booted eCPU up and waiting for completion...\n");
21580+
21581+ /* Windows driver clears bit 0x200 in register 0x2A0 here */
21582+ clear_regbits (adev, 0x2A0, 0x200);
21583+
21584+ /* Windows driver sets bit 0x200 in ACX_GPIO_OUT here */
21585+ set_regbits (adev, IO_ACX_GPIO_OUT, 0x200);
21586+ /* wait for eCPU bootup */
21587+ if (OK != acxmem_s_verify_init(adev)) {
21588+ msg = "timeout waiting for eCPU. ";
21589+ goto end_fail;
21590+ }
21591+ log(L_DEBUG, "eCPU has woken up, card is ready to be configured\n");
21592+ init_mboxes(adev);
21593+ acxmem_write_cmd_type_status(adev, ACX1xx_CMD_RESET, 0);
21594+
21595+ /* test that EEPROM is readable */
21596+ read_eeprom_area(adev);
21597+
21598+ result = OK;
21599+ goto end;
21600+
21601+/* Finish error message. Indicate which function failed */
21602+end_unlock:
21603+ acx_unlock(adev, flags);
21604+end_fail:
21605+ printk("acx: %sreset_dev() FAILED\n", msg);
21606+end:
21607+ FN_EXIT1(result);
21608+ return result;
21609+}
21610+
21611+
21612+/***********************************************************************
21613+** acxmem_s_issue_cmd_timeo
21614+**
21615+** Sends command to fw, extract result
21616+**
21617+** NB: we do _not_ take lock inside, so be sure to not touch anything
21618+** which may interfere with IRQ handler operation
21619+**
21620+** TODO: busy wait is a bit silly, so:
21621+** 1) stop doing many iters - go to sleep after first
21622+** 2) go to waitqueue based approach: wait, not poll!
21623+*/
21624+#undef FUNC
21625+#define FUNC "issue_cmd"
21626+
21627+#if !ACX_DEBUG
21628+int
21629+acxmem_s_issue_cmd_timeo(
21630+ acx_device_t *adev,
21631+ unsigned int cmd,
21632+ void *buffer,
21633+ unsigned buflen,
21634+ unsigned cmd_timeout)
21635+{
21636+#else
21637+int
21638+acxmem_s_issue_cmd_timeo_debug(
21639+ acx_device_t *adev,
21640+ unsigned cmd,
21641+ void *buffer,
21642+ unsigned buflen,
21643+ unsigned cmd_timeout,
21644+ const char* cmdstr)
21645+{
21646+ unsigned long start = jiffies;
21647+#endif
21648+ const char *devname;
21649+ unsigned counter;
21650+ u16 irqtype;
21651+ int i, j;
21652+ u8 *p;
21653+ u16 cmd_status;
21654+ unsigned long timeout;
21655+
21656+ FN_ENTER;
21657+
21658+ devname = adev->ndev->name;
21659+ if (!devname || !devname[0] || devname[4]=='%')
21660+ devname = "acx";
21661+
21662+ log(L_CTL, FUNC"(cmd:%s,buflen:%u,timeout:%ums,type:0x%04X)\n",
21663+ cmdstr, buflen, cmd_timeout,
21664+ buffer ? le16_to_cpu(((acx_ie_generic_t *)buffer)->type) : -1);
21665+
21666+ if (!(adev->dev_state_mask & ACX_STATE_FW_LOADED)) {
21667+ printk("%s: "FUNC"(): firmware is not loaded yet, "
21668+ "cannot execute commands!\n", devname);
21669+ goto bad;
21670+ }
21671+
21672+ if ((acx_debug & L_DEBUG) && (cmd != ACX1xx_CMD_INTERROGATE)) {
21673+ printk("input buffer (len=%u):\n", buflen);
21674+ acx_dump_bytes(buffer, buflen);
21675+ }
21676+
21677+ /* wait for firmware to become idle for our command submission */
21678+ timeout = HZ/5;
21679+ counter = (timeout * 1000 / HZ) - 1; /* in ms */
21680+ timeout += jiffies;
21681+ do {
21682+ cmd_status = acxmem_read_cmd_type_status(adev);
21683+ /* Test for IDLE state */
21684+ if (!cmd_status)
21685+ break;
21686+ if (counter % 8 == 0) {
21687+ if (time_after(jiffies, timeout)) {
21688+ counter = 0;
21689+ break;
21690+ }
21691+ /* we waited 8 iterations, no luck. Sleep 8 ms */
21692+ acx_s_msleep(8);
21693+ }
21694+ } while (likely(--counter));
21695+
21696+ if (!counter) {
21697+ /* the card doesn't get idle, we're in trouble */
21698+ printk("%s: "FUNC"(): cmd_status is not IDLE: 0x%04X!=0\n",
21699+ devname, cmd_status);
21700+#if DUMP_IF_SLOW > 0
21701+ dump_acxmem (adev, 0, 0x10000);
21702+ panic ("not idle");
21703+#endif
21704+ goto bad;
21705+ } else if (counter < 190) { /* if waited >10ms... */
21706+ log(L_CTL|L_DEBUG, FUNC"(): waited for IDLE %dms. "
21707+ "Please report\n", 199 - counter);
21708+ }
21709+
21710+ /* now write the parameters of the command if needed */
21711+ if (buffer && buflen) {
21712+ /* if it's an INTERROGATE command, just pass the length
21713+ * of parameters to read, as data */
21714+#if CMD_DISCOVERY
21715+ if (cmd == ACX1xx_CMD_INTERROGATE)
21716+ memset_io(adev->cmd_area + 4, 0xAA, buflen);
21717+#endif
21718+ /*
21719+ * slave memory version
21720+ */
21721+ copy_to_slavemem (adev, (u32) (adev->cmd_area + 4), buffer,
21722+ (cmd == ACX1xx_CMD_INTERROGATE) ? 4 : buflen);
21723+ }
21724+ /* now write the actual command type */
21725+ acxmem_write_cmd_type_status(adev, cmd, 0);
21726+
21727+ /* clear CMD_COMPLETE bit. can be set only by IRQ handler: */
21728+ adev->irq_status &= ~HOST_INT_CMD_COMPLETE;
21729+
21730+ /* execute command */
21731+ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_CMD);
21732+ write_flush(adev);
21733+
21734+ /* wait for firmware to process command */
21735+
21736+ /* Ensure nonzero and not too large timeout.
21737+ ** Also converts e.g. 100->99, 200->199
21738+ ** which is nice but not essential */
21739+ cmd_timeout = (cmd_timeout-1) | 1;
21740+ if (unlikely(cmd_timeout > 1199))
21741+ cmd_timeout = 1199;
21742+
21743+ /* we schedule away sometimes (timeout can be large) */
21744+ counter = cmd_timeout;
21745+ timeout = jiffies + cmd_timeout * HZ / 1000;
21746+ do {
21747+ if (!adev->irqs_active) { /* IRQ disabled: poll */
21748+ irqtype = read_reg16(adev, IO_ACX_IRQ_STATUS_NON_DES);
21749+ if (irqtype & HOST_INT_CMD_COMPLETE) {
21750+ write_reg16(adev, IO_ACX_IRQ_ACK,
21751+ HOST_INT_CMD_COMPLETE);
21752+ break;
21753+ }
21754+ } else { /* Wait when IRQ will set the bit */
21755+ irqtype = adev->irq_status;
21756+ if (irqtype & HOST_INT_CMD_COMPLETE)
21757+ break;
21758+ }
21759+
21760+ if (counter % 8 == 0) {
21761+ if (time_after(jiffies, timeout)) {
21762+ counter = 0;
21763+ break;
21764+ }
21765+ /* we waited 8 iterations, no luck. Sleep 8 ms */
21766+ acx_s_msleep(8);
21767+ }
21768+ } while (likely(--counter));
21769+
21770+ /* save state for debugging */
21771+ cmd_status = acxmem_read_cmd_type_status(adev);
21772+
21773+ /* put the card in IDLE state */
21774+ acxmem_write_cmd_type_status(adev, ACX1xx_CMD_RESET, 0);
21775+
21776+ if (!counter) { /* timed out! */
21777+ printk("%s: "FUNC"(): timed out %s for CMD_COMPLETE. "
21778+ "irq bits:0x%04X irq_status:0x%04X timeout:%dms "
21779+ "cmd_status:%d (%s)\n",
21780+ devname, (adev->irqs_active) ? "waiting" : "polling",
21781+ irqtype, adev->irq_status, cmd_timeout,
21782+ cmd_status, acx_cmd_status_str(cmd_status));
21783+ printk("%s: "FUNC"(): device irq status 0x%04x\n",
21784+ devname, read_reg16(adev, IO_ACX_IRQ_STATUS_NON_DES));
21785+ printk("%s: "FUNC"(): IO_ACX_IRQ_MASK 0x%04x IO_ACX_FEMR 0x%04x\n",
21786+ devname,
21787+ read_reg16 (adev, IO_ACX_IRQ_MASK),
21788+ read_reg16 (adev, IO_ACX_FEMR));
21789+ if (read_reg16 (adev, IO_ACX_IRQ_MASK) == 0xffff) {
21790+ printk ("acxmem: firmware probably hosed - reloading\n");
21791+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
21792+ {
21793+ pm_message_t state;
21794+ acxmem_e_suspend (resume_pdev, state);
21795+ }
21796+#else
21797+ acxmem_e_suspend (adev->dev, 0);
21798+#endif
21799+ {
21800+ struct work_struct *notused;
21801+ fw_resumer (notused);
21802+ }
21803+ }
21804+
21805+ goto bad;
21806+ } else if (cmd_timeout - counter > 30) { /* if waited >30ms... */
21807+ log(L_CTL|L_DEBUG, FUNC"(): %s for CMD_COMPLETE %dms. "
21808+ "count:%d. Please report\n",
21809+ (adev->irqs_active) ? "waited" : "polled",
21810+ cmd_timeout - counter, counter);
21811+ }
21812+
21813+ if (1 != cmd_status) { /* it is not a 'Success' */
21814+ printk("%s: "FUNC"(): cmd_status is not SUCCESS: %d (%s). "
21815+ "Took %dms of %d\n",
21816+ devname, cmd_status, acx_cmd_status_str(cmd_status),
21817+ cmd_timeout - counter, cmd_timeout);
21818+ /* zero out result buffer
21819+ * WARNING: this will trash stack in case of illegally large input
21820+ * length! */
21821+ if (buflen > 388) {
21822+ /*
21823+ * 388 is maximum command length
21824+ */
21825+ printk ("invalid length 0x%08x\n", buflen);
21826+ buflen = 388;
21827+ }
21828+ p = (u8 *) buffer;
21829+ for (i = 0; i < buflen; i+= 16) {
21830+ printk ("%04x:", i);
21831+ for (j = 0; (j < 16) && (i+j < buflen); j++) {
21832+ printk (" %02x", *p++);
21833+ }
21834+ printk ("\n");
21835+ }
21836+
21837+ if (buffer && buflen)
21838+ memset(buffer, 0, buflen);
21839+ goto bad;
21840+ }
21841+
21842+ /* read in result parameters if needed */
21843+ if (buffer && buflen && (cmd == ACX1xx_CMD_INTERROGATE)) {
21844+ copy_from_slavemem (adev, buffer, (u32) (adev->cmd_area + 4), buflen);
21845+ if (acx_debug & L_DEBUG) {
21846+ printk("output buffer (len=%u): ", buflen);
21847+ acx_dump_bytes(buffer, buflen);
21848+ }
21849+ }
21850+
21851+/* ok: */
21852+ log(L_CTL, FUNC"(%s): took %ld jiffies to complete\n",
21853+ cmdstr, jiffies - start);
21854+ FN_EXIT1(OK);
21855+ return OK;
21856+
21857+bad:
21858+ /* Give enough info so that callers can avoid
21859+ ** printing their own diagnostic messages */
21860+#if ACX_DEBUG
21861+ printk("%s: "FUNC"(cmd:%s) FAILED\n", devname, cmdstr);
21862+#else
21863+ printk("%s: "FUNC"(cmd:0x%04X) FAILED\n", devname, cmd);
21864+#endif
21865+ dump_stack();
21866+ FN_EXIT1(NOT_OK);
21867+ return NOT_OK;
21868+}
21869+
21870+
21871+/***********************************************************************
21872+*/
21873+#if defined(NONESSENTIAL_FEATURES)
21874+typedef struct device_id {
21875+ unsigned char id[6];
21876+ char *descr;
21877+ char *type;
21878+} device_id_t;
21879+
21880+static const device_id_t
21881+device_ids[] =
21882+{
21883+ {
21884+ {'G', 'l', 'o', 'b', 'a', 'l'},
21885+ NULL,
21886+ NULL,
21887+ },
21888+ {
21889+ {0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
21890+ "uninitialized",
21891+ "SpeedStream SS1021 or Gigafast WF721-AEX"
21892+ },
21893+ {
21894+ {0x80, 0x81, 0x82, 0x83, 0x84, 0x85},
21895+ "non-standard",
21896+ "DrayTek Vigor 520"
21897+ },
21898+ {
21899+ {'?', '?', '?', '?', '?', '?'},
21900+ "non-standard",
21901+ "Level One WPC-0200"
21902+ },
21903+ {
21904+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
21905+ "empty",
21906+ "DWL-650+ variant"
21907+ }
21908+};
21909+
21910+static void
21911+acx_show_card_eeprom_id(acx_device_t *adev)
21912+{
21913+ unsigned char buffer[CARD_EEPROM_ID_SIZE];
21914+ int i;
21915+
21916+ memset(&buffer, 0, CARD_EEPROM_ID_SIZE);
21917+ /* use direct EEPROM access */
21918+ for (i = 0; i < CARD_EEPROM_ID_SIZE; i++) {
21919+ if (OK != acxmem_read_eeprom_byte(adev,
21920+ ACX100_EEPROM_ID_OFFSET + i,
21921+ &buffer[i])) {
21922+ printk("acx: reading EEPROM FAILED\n");
21923+ break;
21924+ }
21925+ }
21926+
21927+ for (i = 0; i < VEC_SIZE(device_ids); i++) {
21928+ if (!memcmp(&buffer, device_ids[i].id, CARD_EEPROM_ID_SIZE)) {
21929+ if (device_ids[i].descr) {
21930+ printk("acx: EEPROM card ID string check "
21931+ "found %s card ID: is this %s?\n",
21932+ device_ids[i].descr, device_ids[i].type);
21933+ }
21934+ break;
21935+ }
21936+ }
21937+ if (i == VEC_SIZE(device_ids)) {
21938+ printk("acx: EEPROM card ID string check found "
21939+ "unknown card: expected 'Global', got '%.*s\'. "
21940+ "Please report\n", CARD_EEPROM_ID_SIZE, buffer);
21941+ }
21942+}
21943+#endif /* NONESSENTIAL_FEATURES */
21944+
21945+/***********************************************************************
21946+** acxmem_free_desc_queues
21947+**
21948+** Releases the queues that have been allocated, the
21949+** others have been initialised to NULL so this
21950+** function can be used if only part of the queues were allocated.
21951+*/
21952+
21953+void
21954+acxmem_free_desc_queues(acx_device_t *adev)
21955+{
21956+#define ACX_FREE_QUEUE(size, ptr, phyaddr) \
21957+ if (ptr) { \
21958+ kfree(ptr); \
21959+ ptr = NULL; \
21960+ size = 0; \
21961+ }
21962+
21963+ FN_ENTER;
21964+
21965+ ACX_FREE_QUEUE(adev->txhostdesc_area_size, adev->txhostdesc_start, adev->txhostdesc_startphy);
21966+ ACX_FREE_QUEUE(adev->txbuf_area_size, adev->txbuf_start, adev->txbuf_startphy);
21967+
21968+ adev->txdesc_start = NULL;
21969+
21970+ ACX_FREE_QUEUE(adev->rxhostdesc_area_size, adev->rxhostdesc_start, adev->rxhostdesc_startphy);
21971+ ACX_FREE_QUEUE(adev->rxbuf_area_size, adev->rxbuf_start, adev->rxbuf_startphy);
21972+
21973+ adev->rxdesc_start = NULL;
21974+
21975+ FN_EXIT0;
21976+}
21977+
21978+
21979+/***********************************************************************
21980+** acxmem_s_delete_dma_regions
21981+*/
21982+static void
21983+acxmem_s_delete_dma_regions(acx_device_t *adev)
21984+{
21985+ unsigned long flags;
21986+
21987+ FN_ENTER;
21988+ /* disable radio Tx/Rx. Shouldn't we use the firmware commands
21989+ * here instead? Or are we that much down the road that it's no
21990+ * longer possible here? */
21991+ /*
21992+ * slave memory interface really doesn't like this.
21993+ */
21994+ /*
21995+ write_reg16(adev, IO_ACX_ENABLE, 0);
21996+ */
21997+
21998+ acx_s_msleep(100);
21999+
22000+ acx_lock(adev, flags);
22001+ acxmem_free_desc_queues(adev);
22002+ acx_unlock(adev, flags);
22003+
22004+ FN_EXIT0;
22005+}
22006+
22007+
22008+/***********************************************************************
22009+** acxmem_e_probe
22010+**
22011+** Probe routine called when a PCI device w/ matching ID is found.
22012+** Here's the sequence:
22013+** - Allocate the PCI resources.
22014+** - Read the PCMCIA attribute memory to make sure we have a WLAN card
22015+** - Reset the MAC
22016+** - Initialize the dev and wlan data
22017+** - Initialize the MAC
22018+**
22019+** pdev - ptr to pci device structure containing info about pci configuration
22020+** id - ptr to the device id entry that matched this device
22021+*/
22022+static const u16
22023+IO_ACX100[] =
22024+{
22025+ 0x0000, /* IO_ACX_SOFT_RESET */
22026+
22027+ 0x0014, /* IO_ACX_SLV_MEM_ADDR */
22028+ 0x0018, /* IO_ACX_SLV_MEM_DATA */
22029+ 0x001c, /* IO_ACX_SLV_MEM_CTL */
22030+ 0x0020, /* IO_ACX_SLV_END_CTL */
22031+
22032+ 0x0034, /* IO_ACX_FEMR */
22033+
22034+ 0x007c, /* IO_ACX_INT_TRIG */
22035+ 0x0098, /* IO_ACX_IRQ_MASK */
22036+ 0x00a4, /* IO_ACX_IRQ_STATUS_NON_DES */
22037+ 0x00a8, /* IO_ACX_IRQ_STATUS_CLEAR */
22038+ 0x00ac, /* IO_ACX_IRQ_ACK */
22039+ 0x00b0, /* IO_ACX_HINT_TRIG */
22040+
22041+ 0x0104, /* IO_ACX_ENABLE */
22042+
22043+ 0x0250, /* IO_ACX_EEPROM_CTL */
22044+ 0x0254, /* IO_ACX_EEPROM_ADDR */
22045+ 0x0258, /* IO_ACX_EEPROM_DATA */
22046+ 0x025c, /* IO_ACX_EEPROM_CFG */
22047+
22048+ 0x0268, /* IO_ACX_PHY_ADDR */
22049+ 0x026c, /* IO_ACX_PHY_DATA */
22050+ 0x0270, /* IO_ACX_PHY_CTL */
22051+
22052+ 0x0290, /* IO_ACX_GPIO_OE */
22053+
22054+ 0x0298, /* IO_ACX_GPIO_OUT */
22055+
22056+ 0x02a4, /* IO_ACX_CMD_MAILBOX_OFFS */
22057+ 0x02a8, /* IO_ACX_INFO_MAILBOX_OFFS */
22058+ 0x02ac, /* IO_ACX_EEPROM_INFORMATION */
22059+
22060+ 0x02d0, /* IO_ACX_EE_START */
22061+ 0x02d4, /* IO_ACX_SOR_CFG */
22062+ 0x02d8 /* IO_ACX_ECPU_CTRL */
22063+};
22064+
22065+static const u16
22066+IO_ACX111[] =
22067+{
22068+ 0x0000, /* IO_ACX_SOFT_RESET */
22069+
22070+ 0x0014, /* IO_ACX_SLV_MEM_ADDR */
22071+ 0x0018, /* IO_ACX_SLV_MEM_DATA */
22072+ 0x001c, /* IO_ACX_SLV_MEM_CTL */
22073+ 0x0020, /* IO_ACX_SLV_MEM_CP */
22074+
22075+ 0x0034, /* IO_ACX_FEMR */
22076+
22077+ 0x00b4, /* IO_ACX_INT_TRIG */
22078+ 0x00d4, /* IO_ACX_IRQ_MASK */
22079+ /* we do mean NON_DES (0xf0), not NON_DES_MASK which is at 0xe0: */
22080+ 0x00f0, /* IO_ACX_IRQ_STATUS_NON_DES */
22081+ 0x00e4, /* IO_ACX_IRQ_STATUS_CLEAR */
22082+ 0x00e8, /* IO_ACX_IRQ_ACK */
22083+ 0x00ec, /* IO_ACX_HINT_TRIG */
22084+
22085+ 0x01d0, /* IO_ACX_ENABLE */
22086+
22087+ 0x0338, /* IO_ACX_EEPROM_CTL */
22088+ 0x033c, /* IO_ACX_EEPROM_ADDR */
22089+ 0x0340, /* IO_ACX_EEPROM_DATA */
22090+ 0x0344, /* IO_ACX_EEPROM_CFG */
22091+
22092+ 0x0350, /* IO_ACX_PHY_ADDR */
22093+ 0x0354, /* IO_ACX_PHY_DATA */
22094+ 0x0358, /* IO_ACX_PHY_CTL */
22095+
22096+ 0x0374, /* IO_ACX_GPIO_OE */
22097+
22098+ 0x037c, /* IO_ACX_GPIO_OUT */
22099+
22100+ 0x0388, /* IO_ACX_CMD_MAILBOX_OFFS */
22101+ 0x038c, /* IO_ACX_INFO_MAILBOX_OFFS */
22102+ 0x0390, /* IO_ACX_EEPROM_INFORMATION */
22103+
22104+ 0x0100, /* IO_ACX_EE_START */
22105+ 0x0104, /* IO_ACX_SOR_CFG */
22106+ 0x0108, /* IO_ACX_ECPU_CTRL */
22107+};
22108+
22109+static void
22110+dummy_netdev_init(struct net_device *ndev) {}
22111+
22112+/*
22113+ * Most of the acx specific pieces of hardware reset.
22114+ */
22115+static int
22116+acxmem_complete_hw_reset (acx_device_t *adev)
22117+{
22118+ acx111_ie_configoption_t co;
22119+
22120+ /* NB: read_reg() reads may return bogus data before reset_dev(),
22121+ * since the firmware which directly controls large parts of the I/O
22122+ * registers isn't initialized yet.
22123+ * acx100 seems to be more affected than acx111 */
22124+ if (OK != acxmem_s_reset_dev (adev))
22125+ return -1;
22126+
22127+ if (IS_ACX100(adev)) {
22128+ /* ACX100: configopt struct in cmd mailbox - directly after reset */
22129+ copy_from_slavemem (adev, (u8*) &co, (u32) adev->cmd_area, sizeof (co));
22130+ }
22131+
22132+ if (OK != acx_s_init_mac(adev))
22133+ return -3;
22134+
22135+ if (IS_ACX111(adev)) {
22136+ /* ACX111: configopt struct needs to be queried after full init */
22137+ acx_s_interrogate(adev, &co, ACX111_IE_CONFIG_OPTIONS);
22138+ }
22139+
22140+ /*
22141+ * Set up transmit buffer administration
22142+ */
22143+ init_acx_txbuf (adev);
22144+
22145+ /*
22146+ * Windows driver writes 0x01000000 to register 0x288, RADIO_CTL, if the form factor
22147+ * is 3. It also write protects the EEPROM by writing 1<<9 to GPIO_OUT
22148+ */
22149+ if (adev->form_factor == 3) {
22150+ set_regbits (adev, 0x288, 0x01000000);
22151+ set_regbits (adev, 0x298, 1<<9);
22152+ }
22153+
22154+/* TODO: merge them into one function, they are called just once and are the same for pci & usb */
22155+ if (OK != acxmem_read_eeprom_byte(adev, 0x05, &adev->eeprom_version))
22156+ return -2;
22157+
22158+ acx_s_parse_configoption(adev, &co);
22159+ acx_s_get_firmware_version(adev); /* needs to be after acx_s_init_mac() */
22160+ acx_display_hardware_details(adev);
22161+
22162+ return 0;
22163+}
22164+
22165+static int __devinit
22166+acxmem_e_probe(struct platform_device *pdev)
22167+{
22168+ struct acx_hardware_data *hwdata = pdev->dev.platform_data;
22169+ acx_device_t *adev = NULL;
22170+ struct net_device *ndev = NULL;
22171+ const char *chip_name;
22172+ int result = -EIO;
22173+ int err;
22174+ int i;
22175+ unsigned long addr_size=0;
22176+ u8 chip_type;
22177+
22178+ FN_ENTER;
22179+ (void) hwdata->start_hw();
22180+
22181+ /* FIXME: prism54 calls pci_set_mwi() here,
22182+ * should we do/support the same? */
22183+
22184+ /* chiptype is u8 but id->driver_data is ulong
22185+ ** Works for now (possible values are 1 and 2) */
22186+ chip_type = CHIPTYPE_ACX100;
22187+ /* acx100 and acx111 have different PCI memory regions */
22188+ if (chip_type == CHIPTYPE_ACX100) {
22189+ chip_name = "ACX100";
22190+ } else if (chip_type == CHIPTYPE_ACX111) {
22191+ chip_name = "ACX111";
22192+ } else {
22193+ printk("acx: unknown chip type 0x%04X\n", chip_type);
22194+ goto fail_unknown_chiptype;
22195+ }
22196+
22197+ printk("acx: found %s-based wireless network card\n", chip_name);
22198+ log(L_ANY, "initial debug setting is 0x%04X\n", acx_debug);
22199+
22200+ ndev = alloc_netdev(sizeof(*adev), "wlan%d", dummy_netdev_init);
22201+ /* (NB: memsets to 0 entire area) */
22202+ if (!ndev) {
22203+ printk("acx: no memory for netdevice struct\n");
22204+ goto fail_alloc_netdev;
22205+ }
22206+
22207+ platform_set_drvdata (pdev, ndev);
22208+
22209+ ether_setup(ndev);
22210+
22211+ /*
22212+ * use platform_data resources that were provided
22213+ */
22214+ ndev->irq = 0;
22215+ for (i=0; i<pdev->num_resources; i++) {
22216+ if (pdev->resource[i].flags == IORESOURCE_IRQ) {
22217+ ndev->irq = pdev->resource[i].start;
22218+ }
22219+ else if (pdev->resource[i].flags == IORESOURCE_MEM) {
22220+ ndev->base_addr = pdev->resource[i].start;
22221+ addr_size = pdev->resource[i].end - pdev->resource[i].start;
22222+ }
22223+ }
22224+ if (addr_size == 0 || ndev->irq == 0)
22225+ goto fail_hw_params;
22226+ ndev->open = &acxmem_e_open;
22227+ ndev->stop = &acxmem_e_close;
22228+ pdev->dev.release = &acxmem_e_release;
22229+ ndev->hard_start_xmit = &acx_i_start_xmit;
22230+ ndev->get_stats = &acx_e_get_stats;
22231+#if IW_HANDLER_VERSION <= 5
22232+ ndev->get_wireless_stats = &acx_e_get_wireless_stats;
22233+#endif
22234+ ndev->wireless_handlers = (struct iw_handler_def *)&acx_ioctl_handler_def;
22235+ ndev->set_multicast_list = &acxmem_i_set_multicast_list;
22236+ ndev->tx_timeout = &acxmem_i_tx_timeout;
22237+ ndev->change_mtu = &acx_e_change_mtu;
22238+ ndev->watchdog_timeo = 4 * HZ;
22239+
22240+ adev = ndev2adev(ndev);
22241+ spin_lock_init(&adev->lock); /* initial state: unlocked */
22242+ spin_lock_init(&adev->txbuf_lock);
22243+ /* We do not start with downed sem: we want PARANOID_LOCKING to work */
22244+ sema_init(&adev->sem, 1); /* initial state: 1 (upped) */
22245+ /* since nobody can see new netdev yet, we can as well
22246+ ** just _presume_ that we're under sem (instead of actually taking it): */
22247+ /* acx_sem_lock(adev); */
22248+ adev->dev = &pdev->dev;
22249+ adev->ndev = ndev;
22250+ adev->dev_type = DEVTYPE_MEM;
22251+ adev->chip_type = chip_type;
22252+ adev->chip_name = chip_name;
22253+ adev->io = (CHIPTYPE_ACX100 == chip_type) ? IO_ACX100 : IO_ACX111;
22254+ adev->membase = (volatile u32 *) ndev->base_addr;
22255+ adev->iobase = (volatile u32 *) ioremap_nocache (ndev->base_addr, addr_size);
22256+ /* to find crashes due to weird driver access
22257+ * to unconfigured interface (ifup) */
22258+ adev->mgmt_timer.function = (void (*)(unsigned long))0x0000dead;
22259+
22260+#if defined(NONESSENTIAL_FEATURES)
22261+ acx_show_card_eeprom_id(adev);
22262+#endif /* NONESSENTIAL_FEATURES */
22263+
22264+#ifdef SET_MODULE_OWNER
22265+ SET_MODULE_OWNER(ndev);
22266+#endif
22267+ SET_NETDEV_DEV(ndev, &pdev->dev);
22268+
22269+ log(L_IRQ|L_INIT, "using IRQ %d\n", ndev->irq);
22270+
22271+ /* ok, pci setup is finished, now start initializing the card */
22272+
22273+ if (OK != acxmem_complete_hw_reset (adev))
22274+ goto fail_reset;
22275+
22276+ /*
22277+ * Set up default things for most of the card settings.
22278+ */
22279+ acx_s_set_defaults(adev);
22280+
22281+ /* Register the card, AFTER everything else has been set up,
22282+ * since otherwise an ioctl could step on our feet due to
22283+ * firmware operations happening in parallel or uninitialized data */
22284+ err = register_netdev(ndev);
22285+ if (OK != err) {
22286+ printk("acx: register_netdev() FAILED: %d\n", err);
22287+ goto fail_register_netdev;
22288+ }
22289+
22290+ acx_proc_register_entries(ndev);
22291+
22292+ /* Now we have our device, so make sure the kernel doesn't try
22293+ * to send packets even though we're not associated to a network yet */
22294+ acx_stop_queue(ndev, "on probe");
22295+ acx_carrier_off(ndev, "on probe");
22296+
22297+ /*
22298+ * Set up a default monitor type so that poor combinations of initialization
22299+ * sequences in monitor mode don't end up destroying the hardware type.
22300+ */
22301+ adev->monitor_type = ARPHRD_ETHER;
22302+
22303+ /*
22304+ * Register to receive inetaddr notifier changes. This will allow us to
22305+ * catch if the user changes the MAC address of the interface.
22306+ */
22307+ register_netdevice_notifier(&acx_netdev_notifier);
22308+
22309+ /* after register_netdev() userspace may start working with dev
22310+ * (in particular, on other CPUs), we only need to up the sem */
22311+ /* acx_sem_unlock(adev); */
22312+
22313+ printk("acx "ACX_RELEASE": net device %s, driver compiled "
22314+ "against wireless extensions %d and Linux %s\n",
22315+ ndev->name, WIRELESS_EXT, UTS_RELEASE);
22316+
22317+#if CMD_DISCOVERY
22318+ great_inquisitor(adev);
22319+#endif
22320+
22321+ result = OK;
22322+ goto done;
22323+
22324+ /* error paths: undo everything in reverse order... */
22325+
22326+fail_register_netdev:
22327+
22328+ acxmem_s_delete_dma_regions(adev);
22329+
22330+fail_reset:
22331+fail_hw_params:
22332+ free_netdev(ndev);
22333+fail_alloc_netdev:
22334+fail_unknown_chiptype:
22335+
22336+
22337+done:
22338+ FN_EXIT1(result);
22339+ return result;
22340+}
22341+
22342+
22343+/***********************************************************************
22344+** acxmem_e_remove
22345+**
22346+** Shut device down (if not hot unplugged)
22347+** and deallocate PCI resources for the acx chip.
22348+**
22349+** pdev - ptr to PCI device structure containing info about pci configuration
22350+*/
22351+static int __devexit
22352+acxmem_e_remove(struct platform_device *pdev)
22353+{
22354+ struct acx_hardware_data *hwdata = pdev->dev.platform_data;
22355+ struct net_device *ndev;
22356+ acx_device_t *adev;
22357+ unsigned long flags;
22358+
22359+ FN_ENTER;
22360+
22361+ ndev = (struct net_device*) platform_get_drvdata(pdev);
22362+ if (!ndev) {
22363+ log(L_DEBUG, "%s: card is unused. Skipping any release code\n",
22364+ __func__);
22365+ goto end;
22366+ }
22367+
22368+ adev = ndev2adev(ndev);
22369+
22370+ /* If device wasn't hot unplugged... */
22371+ if (adev_present(adev)) {
22372+
22373+ acx_sem_lock(adev);
22374+
22375+ /* disable both Tx and Rx to shut radio down properly */
22376+ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_TX, NULL, 0);
22377+ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_RX, NULL, 0);
22378+
22379+#ifdef REDUNDANT
22380+ /* put the eCPU to sleep to save power
22381+ * Halting is not possible currently,
22382+ * since not supported by all firmware versions */
22383+ acx_s_issue_cmd(adev, ACX100_CMD_SLEEP, NULL, 0);
22384+#endif
22385+ acx_lock(adev, flags);
22386+
22387+ /* disable power LED to save power :-) */
22388+ log(L_INIT, "switching off power LED to save power\n");
22389+ acxmem_l_power_led(adev, 0);
22390+
22391+ /* stop our eCPU */
22392+ if (IS_ACX111(adev)) {
22393+ /* FIXME: does this actually keep halting the eCPU?
22394+ * I don't think so...
22395+ */
22396+ acxmem_l_reset_mac(adev);
22397+ } else {
22398+ u16 temp;
22399+
22400+ /* halt eCPU */
22401+ temp = read_reg16(adev, IO_ACX_ECPU_CTRL) | 0x1;
22402+ write_reg16(adev, IO_ACX_ECPU_CTRL, temp);
22403+ write_flush(adev);
22404+ }
22405+
22406+ acx_unlock(adev, flags);
22407+
22408+ acx_sem_unlock(adev);
22409+ }
22410+
22411+
22412+ /*
22413+ * Unregister the notifier chain
22414+ */
22415+ unregister_netdevice_notifier(&acx_netdev_notifier);
22416+
22417+ /* unregister the device to not let the kernel
22418+ * (e.g. ioctls) access a half-deconfigured device
22419+ * NB: this will cause acxmem_e_close() to be called,
22420+ * thus we shouldn't call it under sem! */
22421+ log(L_INIT, "removing device %s\n", ndev->name);
22422+ unregister_netdev(ndev);
22423+
22424+ /* unregister_netdev ensures that no references to us left.
22425+ * For paranoid reasons we continue to follow the rules */
22426+ acx_sem_lock(adev);
22427+
22428+ if (adev->dev_state_mask & ACX_STATE_IFACE_UP) {
22429+ acxmem_s_down(ndev);
22430+ CLEAR_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
22431+ }
22432+
22433+ acx_proc_unregister_entries(ndev);
22434+
22435+ acxmem_s_delete_dma_regions(adev);
22436+
22437+ /* finally, clean up PCI bus state */
22438+ if (adev->iobase) iounmap((void *)adev->iobase);
22439+
22440+ acx_sem_unlock(adev);
22441+
22442+ /* Free netdev (quite late,
22443+ * since otherwise we might get caught off-guard
22444+ * by a netdev timeout handler execution
22445+ * expecting to see a working dev...) */
22446+ free_netdev(ndev);
22447+
22448+ (void) hwdata->stop_hw();
22449+
22450+ printk ("e_remove done\n");
22451+end:
22452+ FN_EXIT0;
22453+
22454+ return 0;
22455+}
22456+
22457+
22458+/***********************************************************************
22459+** TODO: PM code needs to be fixed / debugged / tested.
22460+*/
22461+#ifdef CONFIG_PM
22462+static int
22463+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
22464+acxmem_e_suspend(struct platform_device *pdev, pm_message_t state)
22465+#else
22466+acxmem_e_suspend(struct device *pdev, u32 state)
22467+#endif
22468+{
22469+ struct net_device *ndev = platform_get_drvdata(pdev);
22470+ acx_device_t *adev;
22471+ struct acx_hardware_data *hwdata;
22472+
22473+ FN_ENTER;
22474+ printk("acx: suspend handler is experimental!\n");
22475+ printk("sus: dev %p\n", ndev);
22476+
22477+ if (!netif_running(ndev))
22478+ goto end;
22479+
22480+ adev = ndev2adev(ndev);
22481+ printk("sus: adev %p\n", adev);
22482+
22483+ hwdata = adev->dev->platform_data;
22484+
22485+ acx_sem_lock(adev);
22486+
22487+ netif_device_detach(ndev); /* this one cannot sleep */
22488+ acxmem_s_down(ndev);
22489+ /* down() does not set it to 0xffff, but here we really want that */
22490+ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff);
22491+ write_reg16(adev, IO_ACX_FEMR, 0x0);
22492+ acxmem_s_delete_dma_regions(adev);
22493+
22494+ /*
22495+ * Turn the ACX chip off.
22496+ */
22497+ hwdata->stop_hw();
22498+
22499+ acx_sem_unlock(adev);
22500+end:
22501+ FN_EXIT0;
22502+ return OK;
22503+}
22504+
22505+
22506+
22507+static void
22508+fw_resumer(struct work_struct *notused)
22509+{
22510+ struct platform_device *pdev = resume_pdev;
22511+ struct net_device *ndev = platform_get_drvdata(pdev);
22512+ acx_device_t *adev;
22513+ struct acx_hardware_data *hwdata;
22514+
22515+ printk("acx: resume handler is experimental!\n");
22516+ printk("rsm: got dev %p\n", ndev);
22517+
22518+ if (!netif_running(ndev))
22519+ return;
22520+
22521+ adev = ndev2adev(ndev);
22522+ printk("rsm: got adev %p\n", adev);
22523+
22524+ acx_sem_lock(adev);
22525+
22526+ hwdata = adev->dev->platform_data;
22527+
22528+ /*
22529+ * Turn on the ACX.
22530+ */
22531+ hwdata->start_hw();
22532+
22533+ acxmem_complete_hw_reset (adev);
22534+
22535+ /*
22536+ * done by acx_s_set_defaults for initial startup
22537+ */
22538+ acxmem_set_interrupt_mask(adev);
22539+
22540+ printk ("rsm: bringing up interface\n");
22541+ SET_BIT (adev->set_mask, GETSET_ALL);
22542+ acxmem_s_up(ndev);
22543+ printk("rsm: acx up done\n");
22544+
22545+ /* now even reload all card parameters as they were before suspend,
22546+ * and possibly be back in the network again already :-)
22547+ */
22548+ /* - most settings updated in acxmem_s_up()
22549+ if (ACX_STATE_IFACE_UP & adev->dev_state_mask) {
22550+ adev->set_mask = GETSET_ALL;
22551+ acx_s_update_card_settings(adev);
22552+ printk("rsm: settings updated\n");
22553+ }
22554+ */
22555+ netif_device_attach(ndev);
22556+ printk("rsm: device attached\n");
22557+
22558+ acx_sem_unlock(adev);
22559+}
22560+
22561+DECLARE_WORK( fw_resume_work, fw_resumer );
22562+
22563+static int
22564+acxmem_e_resume(struct platform_device *pdev)
22565+{
22566+ FN_ENTER;
22567+
22568+ resume_pdev = pdev;
22569+ schedule_work( &fw_resume_work );
22570+
22571+ FN_EXIT0;
22572+ return OK;
22573+}
22574+#endif /* CONFIG_PM */
22575+
22576+
22577+/***********************************************************************
22578+** acxmem_s_up
22579+**
22580+** This function is called by acxmem_e_open (when ifconfig sets the device as up)
22581+**
22582+** Side effects:
22583+** - Enables on-card interrupt requests
22584+** - calls acx_s_start
22585+*/
22586+
22587+static void
22588+enable_acx_irq(acx_device_t *adev)
22589+{
22590+ FN_ENTER;
22591+ write_reg16(adev, IO_ACX_IRQ_MASK, adev->irq_mask);
22592+ write_reg16(adev, IO_ACX_FEMR, 0x8000);
22593+ adev->irqs_active = 1;
22594+ FN_EXIT0;
22595+}
22596+
22597+static void
22598+acxmem_s_up(struct net_device *ndev)
22599+{
22600+ acx_device_t *adev = ndev2adev(ndev);
22601+ unsigned long flags;
22602+
22603+ FN_ENTER;
22604+
22605+ acx_lock(adev, flags);
22606+ enable_acx_irq(adev);
22607+ acx_unlock(adev, flags);
22608+
22609+ /* acx fw < 1.9.3.e has a hardware timer, and older drivers
22610+ ** used to use it. But we don't do that anymore, our OS
22611+ ** has reliable software timers */
22612+ init_timer(&adev->mgmt_timer);
22613+ adev->mgmt_timer.function = acx_i_timer;
22614+ adev->mgmt_timer.data = (unsigned long)adev;
22615+
22616+ /* Need to set ACX_STATE_IFACE_UP first, or else
22617+ ** timer won't be started by acx_set_status() */
22618+ SET_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
22619+ switch (adev->mode) {
22620+ case ACX_MODE_0_ADHOC:
22621+ case ACX_MODE_2_STA:
22622+ /* actual scan cmd will happen in start() */
22623+ acx_set_status(adev, ACX_STATUS_1_SCANNING); break;
22624+ case ACX_MODE_3_AP:
22625+ case ACX_MODE_MONITOR:
22626+ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED); break;
22627+ }
22628+
22629+ acx_s_start(adev);
22630+
22631+ FN_EXIT0;
22632+}
22633+
22634+
22635+/***********************************************************************
22636+** acxmem_s_down
22637+**
22638+** This disables the netdevice
22639+**
22640+** Side effects:
22641+** - disables on-card interrupt request
22642+*/
22643+
22644+static void
22645+disable_acx_irq(acx_device_t *adev)
22646+{
22647+ FN_ENTER;
22648+
22649+ /* I guess mask is not 0xffff because acx100 won't signal
22650+ ** cmd completion then (needed for ifup).
22651+ ** Someone with acx100 please confirm */
22652+ write_reg16(adev, IO_ACX_IRQ_MASK, adev->irq_mask_off);
22653+ write_reg16(adev, IO_ACX_FEMR, 0x0);
22654+ adev->irqs_active = 0;
22655+ FN_EXIT0;
22656+}
22657+
22658+static void
22659+acxmem_s_down(struct net_device *ndev)
22660+{
22661+ acx_device_t *adev = ndev2adev(ndev);
22662+ unsigned long flags;
22663+
22664+ FN_ENTER;
22665+
22666+ /* Disable IRQs first, so that IRQs cannot race with us */
22667+ /* then wait until interrupts have finished executing on other CPUs */
22668+ acx_lock(adev, flags);
22669+ disable_acx_irq(adev);
22670+ synchronize_irq(adev->pdev->irq);
22671+ acx_unlock(adev, flags);
22672+
22673+ /* we really don't want to have an asynchronous tasklet disturb us
22674+ ** after something vital for its job has been shut down, so
22675+ ** end all remaining work now.
22676+ **
22677+ ** NB: carrier_off (done by set_status below) would lead to
22678+ ** not yet fully understood deadlock in FLUSH_SCHEDULED_WORK().
22679+ ** That's why we do FLUSH first.
22680+ **
22681+ ** NB2: we have a bad locking bug here: FLUSH_SCHEDULED_WORK()
22682+ ** waits for acx_e_after_interrupt_task to complete if it is running
22683+ ** on another CPU, but acx_e_after_interrupt_task
22684+ ** will sleep on sem forever, because it is taken by us!
22685+ ** Work around that by temporary sem unlock.
22686+ ** This will fail miserably if we'll be hit by concurrent
22687+ ** iwconfig or something in between. TODO! */
22688+ acx_sem_unlock(adev);
22689+ FLUSH_SCHEDULED_WORK();
22690+ acx_sem_lock(adev);
22691+
22692+ /* This is possible:
22693+ ** FLUSH_SCHEDULED_WORK -> acx_e_after_interrupt_task ->
22694+ ** -> set_status(ASSOCIATED) -> wake_queue()
22695+ ** That's why we stop queue _after_ FLUSH_SCHEDULED_WORK
22696+ ** lock/unlock is just paranoia, maybe not needed */
22697+ acx_lock(adev, flags);
22698+ acx_stop_queue(ndev, "on ifdown");
22699+ acx_set_status(adev, ACX_STATUS_0_STOPPED);
22700+ acx_unlock(adev, flags);
22701+
22702+ /* kernel/timer.c says it's illegal to del_timer_sync()
22703+ ** a timer which restarts itself. We guarantee this cannot
22704+ ** ever happen because acx_i_timer() never does this if
22705+ ** status is ACX_STATUS_0_STOPPED */
22706+ del_timer_sync(&adev->mgmt_timer);
22707+
22708+ FN_EXIT0;
22709+}
22710+
22711+
22712+/***********************************************************************
22713+** acxmem_e_open
22714+**
22715+** Called as a result of SIOCSIFFLAGS ioctl changing the flags bit IFF_UP
22716+** from clear to set. In other words: ifconfig up.
22717+**
22718+** Returns:
22719+** 0 success
22720+** >0 f/w reported error
22721+** <0 driver reported error
22722+*/
22723+static int
22724+acxmem_e_open(struct net_device *ndev)
22725+{
22726+ acx_device_t *adev = ndev2adev(ndev);
22727+ int result = OK;
22728+
22729+ FN_ENTER;
22730+
22731+ acx_sem_lock(adev);
22732+
22733+ acx_init_task_scheduler(adev);
22734+
22735+/* TODO: pci_set_power_state(pdev, PCI_D0); ? */
22736+
22737+ /* request shared IRQ handler */
22738+ if (request_irq(ndev->irq, acxmem_i_interrupt, SA_INTERRUPT, ndev->name, ndev)) {
22739+ printk("%s: request_irq FAILED\n", ndev->name);
22740+ result = -EAGAIN;
22741+ goto done;
22742+ }
22743+ set_irq_type (ndev->irq, IRQT_FALLING);
22744+ log(L_DEBUG|L_IRQ, "request_irq %d successful\n", ndev->irq);
22745+
22746+ /* ifup device */
22747+ acxmem_s_up(ndev);
22748+
22749+ /* We don't currently have to do anything else.
22750+ * The setup of the MAC should be subsequently completed via
22751+ * the mlme commands.
22752+ * Higher layers know we're ready from dev->start==1 and
22753+ * dev->tbusy==0. Our rx path knows to pass up received/
22754+ * frames because of dev->flags&IFF_UP is true.
22755+ */
22756+done:
22757+ acx_sem_unlock(adev);
22758+
22759+ FN_EXIT1(result);
22760+ return result;
22761+}
22762+
22763+
22764+/***********************************************************************
22765+** acxmem_e_close
22766+**
22767+** Called as a result of SIOCSIIFFLAGS ioctl changing the flags bit IFF_UP
22768+** from set to clear. I.e. called by "ifconfig DEV down"
22769+**
22770+** Returns:
22771+** 0 success
22772+** >0 f/w reported error
22773+** <0 driver reported error
22774+*/
22775+static int
22776+acxmem_e_close(struct net_device *ndev)
22777+{
22778+ acx_device_t *adev = ndev2adev(ndev);
22779+
22780+ FN_ENTER;
22781+
22782+ acx_sem_lock(adev);
22783+
22784+ /* ifdown device */
22785+ CLEAR_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
22786+ if (netif_device_present(ndev)) {
22787+ acxmem_s_down(ndev);
22788+ }
22789+
22790+ /* disable all IRQs, release shared IRQ handler */
22791+ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff);
22792+ write_reg16(adev, IO_ACX_FEMR, 0x0);
22793+ free_irq(ndev->irq, ndev);
22794+
22795+/* TODO: pci_set_power_state(pdev, PCI_D3hot); ? */
22796+
22797+ /* We currently don't have to do anything else.
22798+ * Higher layers know we're not ready from dev->start==0 and
22799+ * dev->tbusy==1. Our rx path knows to not pass up received
22800+ * frames because of dev->flags&IFF_UP is false.
22801+ */
22802+ acx_sem_unlock(adev);
22803+
22804+ log(L_INIT, "closed device\n");
22805+ FN_EXIT0;
22806+ return OK;
22807+}
22808+
22809+
22810+/***********************************************************************
22811+** acxmem_i_tx_timeout
22812+**
22813+** Called from network core. Must not sleep!
22814+*/
22815+static void
22816+acxmem_i_tx_timeout(struct net_device *ndev)
22817+{
22818+ acx_device_t *adev = ndev2adev(ndev);
22819+ unsigned long flags;
22820+ unsigned int tx_num_cleaned;
22821+
22822+ FN_ENTER;
22823+
22824+ acx_lock(adev, flags);
22825+
22826+ /* clean processed tx descs, they may have been completely full */
22827+ tx_num_cleaned = acxmem_l_clean_txdesc(adev);
22828+
22829+ /* nothing cleaned, yet (almost) no free buffers available?
22830+ * --> clean all tx descs, no matter which status!!
22831+ * Note that I strongly suspect that doing emergency cleaning
22832+ * may confuse the firmware. This is a last ditch effort to get
22833+ * ANYTHING to work again...
22834+ *
22835+ * TODO: it's best to simply reset & reinit hw from scratch...
22836+ */
22837+ if ((adev->tx_free <= TX_EMERG_CLEAN) && (tx_num_cleaned == 0)) {
22838+ printk("%s: FAILED to free any of the many full tx buffers. "
22839+ "Switching to emergency freeing. "
22840+ "Please report!\n", ndev->name);
22841+ acxmem_l_clean_txdesc_emergency(adev);
22842+ }
22843+
22844+ if (acx_queue_stopped(ndev) && (ACX_STATUS_4_ASSOCIATED == adev->status))
22845+ acx_wake_queue(ndev, "after tx timeout");
22846+
22847+ /* stall may have happened due to radio drift, so recalib radio */
22848+ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_RADIO_RECALIB);
22849+
22850+ /* do unimportant work last */
22851+ printk("%s: tx timeout!\n", ndev->name);
22852+ adev->stats.tx_errors++;
22853+
22854+ acx_unlock(adev, flags);
22855+
22856+ FN_EXIT0;
22857+}
22858+
22859+
22860+/***********************************************************************
22861+** acxmem_i_set_multicast_list
22862+** FIXME: most likely needs refinement
22863+*/
22864+static void
22865+acxmem_i_set_multicast_list(struct net_device *ndev)
22866+{
22867+ acx_device_t *adev = ndev2adev(ndev);
22868+ unsigned long flags;
22869+
22870+ FN_ENTER;
22871+
22872+ acx_lock(adev, flags);
22873+
22874+ /* firmwares don't have allmulti capability,
22875+ * so just use promiscuous mode instead in this case. */
22876+ if (ndev->flags & (IFF_PROMISC|IFF_ALLMULTI)) {
22877+ SET_BIT(adev->rx_config_1, RX_CFG1_RCV_PROMISCUOUS);
22878+ CLEAR_BIT(adev->rx_config_1, RX_CFG1_FILTER_ALL_MULTI);
22879+ SET_BIT(adev->set_mask, SET_RXCONFIG);
22880+ /* let kernel know in case *we* needed to set promiscuous */
22881+ ndev->flags |= (IFF_PROMISC|IFF_ALLMULTI);
22882+ } else {
22883+ CLEAR_BIT(adev->rx_config_1, RX_CFG1_RCV_PROMISCUOUS);
22884+ SET_BIT(adev->rx_config_1, RX_CFG1_FILTER_ALL_MULTI);
22885+ SET_BIT(adev->set_mask, SET_RXCONFIG);
22886+ ndev->flags &= ~(IFF_PROMISC|IFF_ALLMULTI);
22887+ }
22888+
22889+ /* cannot update card settings directly here, atomic context */
22890+ acx_schedule_task(adev, ACX_AFTER_IRQ_UPDATE_CARD_CFG);
22891+
22892+ acx_unlock(adev, flags);
22893+
22894+ FN_EXIT0;
22895+}
22896+
22897+
22898+/***************************************************************
22899+** acxmem_l_process_rxdesc
22900+**
22901+** Called directly and only from the IRQ handler
22902+*/
22903+
22904+#if !ACX_DEBUG
22905+static inline void log_rxbuffer(const acx_device_t *adev) {}
22906+#else
22907+static void
22908+log_rxbuffer(const acx_device_t *adev)
22909+{
22910+ register const struct rxhostdesc *rxhostdesc;
22911+ int i;
22912+ /* no FN_ENTER here, we don't want that */
22913+
22914+ rxhostdesc = adev->rxhostdesc_start;
22915+ if (unlikely(!rxhostdesc)) return;
22916+ for (i = 0; i < RX_CNT; i++) {
22917+ if ((rxhostdesc->Ctl_16 & cpu_to_le16(DESC_CTL_HOSTOWN))
22918+ && (rxhostdesc->Status & cpu_to_le32(DESC_STATUS_FULL)))
22919+ printk("rx: buf %d full\n", i);
22920+ rxhostdesc++;
22921+ }
22922+}
22923+#endif
22924+
22925+static void
22926+acxmem_l_process_rxdesc(acx_device_t *adev)
22927+{
22928+ register rxhostdesc_t *hostdesc;
22929+ register rxdesc_t *rxdesc;
22930+ unsigned count, tail;
22931+ u32 addr;
22932+ u8 Ctl_8;
22933+
22934+ FN_ENTER;
22935+
22936+ if (unlikely(acx_debug & L_BUFR))
22937+ log_rxbuffer(adev);
22938+
22939+ /* First, have a loop to determine the first descriptor that's
22940+ * full, just in case there's a mismatch between our current
22941+ * rx_tail and the full descriptor we're supposed to handle. */
22942+ tail = adev->rx_tail;
22943+ count = RX_CNT;
22944+ while (1) {
22945+ hostdesc = &adev->rxhostdesc_start[tail];
22946+ rxdesc = &adev->rxdesc_start[tail];
22947+ /* advance tail regardless of outcome of the below test */
22948+ tail = (tail + 1) % RX_CNT;
22949+
22950+ /*
22951+ * Unlike the PCI interface, where the ACX can write directly to
22952+ * the host descriptors, on the slave memory interface we have to
22953+ * pull these. All we really need to do is check the Ctl_8 field
22954+ * in the rx descriptor on the ACX, which should be 0x11000000 if
22955+ * we should process it.
22956+ */
22957+ Ctl_8 = hostdesc->Ctl_16 = read_slavemem8 (adev, (u32) &(rxdesc->Ctl_8));
22958+ if ((Ctl_8 & DESC_CTL_HOSTOWN) &&
22959+ (Ctl_8 & DESC_CTL_ACXDONE))
22960+ break; /* found it! */
22961+
22962+ if (unlikely(!--count)) /* hmm, no luck: all descs empty, bail out */
22963+ goto end;
22964+ }
22965+
22966+ /* now process descriptors, starting with the first we figured out */
22967+ while (1) {
22968+ log(L_BUFR, "rx: tail=%u Ctl_8=%02X\n", tail, Ctl_8);
22969+ /*
22970+ * If the ACX has CTL_RECLAIM set on this descriptor there
22971+ * is no buffer associated; it just wants us to tell it to
22972+ * reclaim the memory.
22973+ */
22974+ if (!(Ctl_8 & DESC_CTL_RECLAIM)) {
22975+
22976+ /*
22977+ * slave interface - pull data now
22978+ */
22979+ hostdesc->length = read_slavemem16 (adev, (u32) &(rxdesc->total_length));
22980+
22981+ /*
22982+ * hostdesc->data is an rxbuffer_t, which includes header information,
22983+ * but the length in the data packet doesn't. The header information
22984+ * takes up an additional 12 bytes, so add that to the length we copy.
22985+ */
22986+ addr = read_slavemem32 (adev, (u32) &(rxdesc->ACXMemPtr));
22987+ if (addr) {
22988+ /*
22989+ * How can &(rxdesc->ACXMemPtr) above ever be zero? Looks like we
22990+ * get that now and then - try to trap it for debug.
22991+ */
22992+ if (addr & 0xffff0000) {
22993+ printk("rxdesc 0x%08x\n", (u32) rxdesc);
22994+ dump_acxmem (adev, 0, 0x10000);
22995+ panic ("Bad access!");
22996+ }
22997+ chaincopy_from_slavemem (adev, (u8 *) hostdesc->data, addr,
22998+ hostdesc->length +
22999+ (u32) &((rxbuffer_t *)0)->hdr_a3);
23000+ acx_l_process_rxbuf(adev, hostdesc->data);
23001+ }
23002+ }
23003+ else {
23004+ printk ("rx reclaim only!\n");
23005+ }
23006+
23007+ hostdesc->Status = 0;
23008+
23009+ /*
23010+ * Let the ACX know we're done.
23011+ */
23012+ CLEAR_BIT (Ctl_8, DESC_CTL_HOSTOWN);
23013+ SET_BIT (Ctl_8, DESC_CTL_HOSTDONE);
23014+ SET_BIT (Ctl_8, DESC_CTL_RECLAIM);
23015+ write_slavemem8 (adev, (u32) &rxdesc->Ctl_8, Ctl_8);
23016+
23017+ /*
23018+ * Now tell the ACX we've finished with the receive buffer so
23019+ * it can finish the reclaim.
23020+ */
23021+ write_reg16 (adev, IO_ACX_INT_TRIG, INT_TRIG_RXPRC);
23022+
23023+ /* ok, descriptor is handled, now check the next descriptor */
23024+ hostdesc = &adev->rxhostdesc_start[tail];
23025+ rxdesc = &adev->rxdesc_start[tail];
23026+
23027+ Ctl_8 = hostdesc->Ctl_16 = read_slavemem8 (adev, (u32) &(rxdesc->Ctl_8));
23028+
23029+ /* if next descriptor is empty, then bail out */
23030+ if (!(Ctl_8 & DESC_CTL_HOSTOWN) || !(Ctl_8 & DESC_CTL_ACXDONE))
23031+ break;
23032+
23033+ tail = (tail + 1) % RX_CNT;
23034+ }
23035+end:
23036+ adev->rx_tail = tail;
23037+ FN_EXIT0;
23038+}
23039+
23040+
23041+/***********************************************************************
23042+** acxmem_i_interrupt
23043+**
23044+** IRQ handler (atomic context, must not sleep, blah, blah)
23045+*/
23046+
23047+/* scan is complete. all frames now on the receive queue are valid */
23048+#define INFO_SCAN_COMPLETE 0x0001
23049+#define INFO_WEP_KEY_NOT_FOUND 0x0002
23050+/* hw has been reset as the result of a watchdog timer timeout */
23051+#define INFO_WATCH_DOG_RESET 0x0003
23052+/* failed to send out NULL frame from PS mode notification to AP */
23053+/* recommended action: try entering 802.11 PS mode again */
23054+#define INFO_PS_FAIL 0x0004
23055+/* encryption/decryption process on a packet failed */
23056+#define INFO_IV_ICV_FAILURE 0x0005
23057+
23058+/* Info mailbox format:
23059+2 bytes: type
23060+2 bytes: status
23061+more bytes may follow
23062+ rumors say about status:
23063+ 0x0000 info available (set by hw)
23064+ 0x0001 information received (must be set by host)
23065+ 0x1000 info available, mailbox overflowed (messages lost) (set by hw)
23066+ but in practice we've seen:
23067+ 0x9000 when we did not set status to 0x0001 on prev message
23068+ 0x1001 when we did set it
23069+ 0x0000 was never seen
23070+ conclusion: this is really a bitfield:
23071+ 0x1000 is 'info available' bit
23072+ 'mailbox overflowed' bit is 0x8000, not 0x1000
23073+ value of 0x0000 probably means that there are no messages at all
23074+ P.S. I dunno how in hell hw is supposed to notice that messages are lost -
23075+ it does NOT clear bit 0x0001, and this bit will probably stay forever set
23076+ after we set it once. Let's hope this will be fixed in firmware someday
23077+*/
23078+
23079+static void
23080+handle_info_irq(acx_device_t *adev)
23081+{
23082+#if ACX_DEBUG
23083+ static const char * const info_type_msg[] = {
23084+ "(unknown)",
23085+ "scan complete",
23086+ "WEP key not found",
23087+ "internal watchdog reset was done",
23088+ "failed to send powersave (NULL frame) notification to AP",
23089+ "encrypt/decrypt on a packet has failed",
23090+ "TKIP tx keys disabled",
23091+ "TKIP rx keys disabled",
23092+ "TKIP rx: key ID not found",
23093+ "???",
23094+ "???",
23095+ "???",
23096+ "???",
23097+ "???",
23098+ "???",
23099+ "???",
23100+ "TKIP IV value exceeds thresh"
23101+ };
23102+#endif
23103+ u32 info_type, info_status;
23104+
23105+ info_type = read_slavemem32 (adev, (u32) adev->info_area);
23106+
23107+ info_status = (info_type >> 16);
23108+ info_type = (u16)info_type;
23109+
23110+ /* inform fw that we have read this info message */
23111+ write_slavemem32(adev, (u32) adev->info_area, info_type | 0x00010000);
23112+ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_INFOACK);
23113+ write_flush(adev);
23114+
23115+ log(L_CTL, "info_type:%04X info_status:%04X\n",
23116+ info_type, info_status);
23117+
23118+ log(L_IRQ, "got Info IRQ: status %04X type %04X: %s\n",
23119+ info_status, info_type,
23120+ info_type_msg[(info_type >= VEC_SIZE(info_type_msg)) ?
23121+ 0 : info_type]
23122+ );
23123+}
23124+
23125+
23126+static void
23127+log_unusual_irq(u16 irqtype) {
23128+ /*
23129+ if (!printk_ratelimit())
23130+ return;
23131+ */
23132+
23133+ printk("acx: got");
23134+ if (irqtype & HOST_INT_TX_XFER) {
23135+ printk(" Tx_Xfer");
23136+ }
23137+ if (irqtype & HOST_INT_RX_COMPLETE) {
23138+ printk(" Rx_Complete");
23139+ }
23140+ if (irqtype & HOST_INT_DTIM) {
23141+ printk(" DTIM");
23142+ }
23143+ if (irqtype & HOST_INT_BEACON) {
23144+ printk(" Beacon");
23145+ }
23146+ if (irqtype & HOST_INT_TIMER) {
23147+ log(L_IRQ, " Timer");
23148+ }
23149+ if (irqtype & HOST_INT_KEY_NOT_FOUND) {
23150+ printk(" Key_Not_Found");
23151+ }
23152+ if (irqtype & HOST_INT_IV_ICV_FAILURE) {
23153+ printk(" IV_ICV_Failure (crypto)");
23154+ }
23155+ /* HOST_INT_CMD_COMPLETE */
23156+ /* HOST_INT_INFO */
23157+ if (irqtype & HOST_INT_OVERFLOW) {
23158+ printk(" Overflow");
23159+ }
23160+ if (irqtype & HOST_INT_PROCESS_ERROR) {
23161+ printk(" Process_Error");
23162+ }
23163+ /* HOST_INT_SCAN_COMPLETE */
23164+ if (irqtype & HOST_INT_FCS_THRESHOLD) {
23165+ printk(" FCS_Threshold");
23166+ }
23167+ if (irqtype & HOST_INT_UNKNOWN) {
23168+ printk(" Unknown");
23169+ }
23170+ printk(" IRQ(s)\n");
23171+}
23172+
23173+
23174+static void
23175+update_link_quality_led(acx_device_t *adev)
23176+{
23177+ int qual;
23178+
23179+ qual = acx_signal_determine_quality(adev->wstats.qual.level, adev->wstats.qual.noise);
23180+ if (qual > adev->brange_max_quality)
23181+ qual = adev->brange_max_quality;
23182+
23183+ if (time_after(jiffies, adev->brange_time_last_state_change +
23184+ (HZ/2 - HZ/2 * (unsigned long)qual / adev->brange_max_quality ) )) {
23185+ acxmem_l_power_led(adev, (adev->brange_last_state == 0));
23186+ adev->brange_last_state ^= 1; /* toggle */
23187+ adev->brange_time_last_state_change = jiffies;
23188+ }
23189+}
23190+
23191+
23192+#define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* a la orinoco.c */
23193+
23194+static irqreturn_t
23195+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
23196+acxmem_i_interrupt(int irq, void *dev_id)
23197+#else
23198+acxmwm_i_interrupt(int irq, void *dev_id, struct pt_regs *regs)
23199+#endif
23200+{
23201+ acx_device_t *adev;
23202+ unsigned long flags;
23203+ unsigned int irqcount = MAX_IRQLOOPS_PER_JIFFY;
23204+ register u16 irqtype;
23205+ u16 unmasked;
23206+
23207+ adev = ndev2adev((struct net_device*)dev_id);
23208+
23209+ /* LOCKING: can just spin_lock() since IRQs are disabled anyway.
23210+ * I am paranoid */
23211+ acx_lock(adev, flags);
23212+
23213+ unmasked = read_reg16(adev, IO_ACX_IRQ_STATUS_CLEAR);
23214+ if (unlikely(0xffff == unmasked)) {
23215+ /* 0xffff value hints at missing hardware,
23216+ * so don't do anything.
23217+ * Not very clean, but other drivers do the same... */
23218+ log(L_IRQ, "IRQ type:FFFF - device removed? IRQ_NONE\n");
23219+ goto none;
23220+ }
23221+
23222+ /* We will check only "interesting" IRQ types */
23223+ irqtype = unmasked & ~adev->irq_mask;
23224+ if (!irqtype) {
23225+ /* We are on a shared IRQ line and it wasn't our IRQ */
23226+ log(L_IRQ, "IRQ type:%04X, mask:%04X - all are masked, IRQ_NONE\n",
23227+ unmasked, adev->irq_mask);
23228+ goto none;
23229+ }
23230+
23231+ /* Done here because IRQ_NONEs taking three lines of log
23232+ ** drive me crazy */
23233+ FN_ENTER;
23234+
23235+#define IRQ_ITERATE 1
23236+#if IRQ_ITERATE
23237+if (jiffies != adev->irq_last_jiffies) {
23238+ adev->irq_loops_this_jiffy = 0;
23239+ adev->irq_last_jiffies = jiffies;
23240+}
23241+
23242+/* safety condition; we'll normally abort loop below
23243+ * in case no IRQ type occurred */
23244+while (likely(--irqcount)) {
23245+#endif
23246+ /* ACK all IRQs ASAP */
23247+ write_reg16(adev, IO_ACX_IRQ_ACK, 0xffff);
23248+
23249+ log(L_IRQ, "IRQ type:%04X, mask:%04X, type & ~mask:%04X\n",
23250+ unmasked, adev->irq_mask, irqtype);
23251+
23252+ /* Handle most important IRQ types first */
23253+ if (irqtype & HOST_INT_RX_DATA) {
23254+ log(L_IRQ, "got Rx_Data IRQ\n");
23255+ acxmem_l_process_rxdesc(adev);
23256+ }
23257+ if (irqtype & HOST_INT_TX_COMPLETE) {
23258+ log(L_IRQ, "got Tx_Complete IRQ\n");
23259+ /* don't clean up on each Tx complete, wait a bit
23260+ * unless we're going towards full, in which case
23261+ * we do it immediately, too (otherwise we might lockup
23262+ * with a full Tx buffer if we go into
23263+ * acxmem_l_clean_txdesc() at a time when we won't wakeup
23264+ * the net queue in there for some reason...) */
23265+ if (adev->tx_free <= TX_START_CLEAN) {
23266+#if TX_CLEANUP_IN_SOFTIRQ
23267+ acx_schedule_task(adev, ACX_AFTER_IRQ_TX_CLEANUP);
23268+#else
23269+ acxmem_l_clean_txdesc(adev);
23270+#endif
23271+ }
23272+ }
23273+
23274+ /* Less frequent ones */
23275+ if (irqtype & (0
23276+ | HOST_INT_CMD_COMPLETE
23277+ | HOST_INT_INFO
23278+ | HOST_INT_SCAN_COMPLETE
23279+ )) {
23280+ if (irqtype & HOST_INT_CMD_COMPLETE) {
23281+ log(L_IRQ, "got Command_Complete IRQ\n");
23282+ /* save the state for the running issue_cmd() */
23283+ SET_BIT(adev->irq_status, HOST_INT_CMD_COMPLETE);
23284+ }
23285+ if (irqtype & HOST_INT_INFO) {
23286+ handle_info_irq(adev);
23287+ }
23288+ if (irqtype & HOST_INT_SCAN_COMPLETE) {
23289+ log(L_IRQ, "got Scan_Complete IRQ\n");
23290+ /* need to do that in process context */
23291+ acx_schedule_task(adev, ACX_AFTER_IRQ_COMPLETE_SCAN);
23292+ /* remember that fw is not scanning anymore */
23293+ SET_BIT(adev->irq_status, HOST_INT_SCAN_COMPLETE);
23294+ }
23295+ }
23296+
23297+ /* These we just log, but either they happen rarely
23298+ * or we keep them masked out */
23299+ if (irqtype & (0
23300+ /* | HOST_INT_RX_DATA */
23301+ /* | HOST_INT_TX_COMPLETE */
23302+ | HOST_INT_TX_XFER
23303+ | HOST_INT_RX_COMPLETE
23304+ | HOST_INT_DTIM
23305+ | HOST_INT_BEACON
23306+ | HOST_INT_TIMER
23307+ | HOST_INT_KEY_NOT_FOUND
23308+ | HOST_INT_IV_ICV_FAILURE
23309+ /* | HOST_INT_CMD_COMPLETE */
23310+ /* | HOST_INT_INFO */
23311+ | HOST_INT_OVERFLOW
23312+ | HOST_INT_PROCESS_ERROR
23313+ /* | HOST_INT_SCAN_COMPLETE */
23314+ | HOST_INT_FCS_THRESHOLD
23315+ | HOST_INT_UNKNOWN
23316+ )) {
23317+ log_unusual_irq(irqtype);
23318+ }
23319+
23320+#if IRQ_ITERATE
23321+ unmasked = read_reg16(adev, IO_ACX_IRQ_STATUS_CLEAR);
23322+ irqtype = unmasked & ~adev->irq_mask;
23323+ /* Bail out if no new IRQ bits or if all are masked out */
23324+ if (!irqtype)
23325+ break;
23326+
23327+ if (unlikely(++adev->irq_loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY)) {
23328+ printk(KERN_ERR "acx: too many interrupts per jiffy!\n");
23329+ /* Looks like card floods us with IRQs! Try to stop that */
23330+ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff);
23331+ /* This will short-circuit all future attempts to handle IRQ.
23332+ * We cant do much more... */
23333+ adev->irq_mask = 0;
23334+ break;
23335+ }
23336+}
23337+#endif
23338+ /* Routine to perform blink with range */
23339+ if (unlikely(adev->led_power == 2))
23340+ update_link_quality_led(adev);
23341+
23342+/* handled: */
23343+ /* write_flush(adev); - not needed, last op was read anyway */
23344+ acx_unlock(adev, flags);
23345+ FN_EXIT0;
23346+ return IRQ_HANDLED;
23347+
23348+none:
23349+ acx_unlock(adev, flags);
23350+ return IRQ_NONE;
23351+}
23352+
23353+
23354+/***********************************************************************
23355+** acxmem_l_power_led
23356+*/
23357+void
23358+acxmem_l_power_led(acx_device_t *adev, int enable)
23359+{
23360+ u16 gpio_pled = IS_ACX111(adev) ? 0x0040 : 0x0800;
23361+
23362+ /* A hack. Not moving message rate limiting to adev->xxx
23363+ * (it's only a debug message after all) */
23364+ static int rate_limit = 0;
23365+
23366+ if (rate_limit++ < 3)
23367+ log(L_IOCTL, "Please report in case toggling the power "
23368+ "LED doesn't work for your card!\n");
23369+ if (enable)
23370+ write_reg16(adev, IO_ACX_GPIO_OUT,
23371+ read_reg16(adev, IO_ACX_GPIO_OUT) & ~gpio_pled);
23372+ else
23373+ write_reg16(adev, IO_ACX_GPIO_OUT,
23374+ read_reg16(adev, IO_ACX_GPIO_OUT) | gpio_pled);
23375+}
23376+
23377+
23378+/***********************************************************************
23379+** Ioctls
23380+*/
23381+
23382+/***********************************************************************
23383+*/
23384+int
23385+acx111pci_ioctl_info(
23386+ struct net_device *ndev,
23387+ struct iw_request_info *info,
23388+ struct iw_param *vwrq,
23389+ char *extra)
23390+{
23391+#if ACX_DEBUG > 1
23392+ acx_device_t *adev = ndev2adev(ndev);
23393+ rxdesc_t *rxdesc;
23394+ txdesc_t *txdesc;
23395+ rxhostdesc_t *rxhostdesc;
23396+ txhostdesc_t *txhostdesc;
23397+ struct acx111_ie_memoryconfig memconf;
23398+ struct acx111_ie_queueconfig queueconf;
23399+ unsigned long flags;
23400+ int i;
23401+ char memmap[0x34];
23402+ char rxconfig[0x8];
23403+ char fcserror[0x8];
23404+ char ratefallback[0x5];
23405+
23406+ if ( !(acx_debug & (L_IOCTL|L_DEBUG)) )
23407+ return OK;
23408+ /* using printk() since we checked debug flag already */
23409+
23410+ acx_sem_lock(adev);
23411+
23412+ if (!IS_ACX111(adev)) {
23413+ printk("acx111-specific function called "
23414+ "with non-acx111 chip, aborting\n");
23415+ goto end_ok;
23416+ }
23417+
23418+ /* get Acx111 Memory Configuration */
23419+ memset(&memconf, 0, sizeof(memconf));
23420+ /* BTW, fails with 12 (Write only) error code.
23421+ ** Retained for easy testing of issue_cmd error handling :) */
23422+ printk ("Interrogating queue config\n");
23423+ acx_s_interrogate(adev, &memconf, ACX1xx_IE_QUEUE_CONFIG);
23424+ printk ("done with queue config\n");
23425+
23426+ /* get Acx111 Queue Configuration */
23427+ memset(&queueconf, 0, sizeof(queueconf));
23428+ printk ("Interrogating mem config options\n");
23429+ acx_s_interrogate(adev, &queueconf, ACX1xx_IE_MEMORY_CONFIG_OPTIONS);
23430+ printk ("done with mem config options\n");
23431+
23432+ /* get Acx111 Memory Map */
23433+ memset(memmap, 0, sizeof(memmap));
23434+ printk ("Interrogating mem map\n");
23435+ acx_s_interrogate(adev, &memmap, ACX1xx_IE_MEMORY_MAP);
23436+ printk ("done with mem map\n");
23437+
23438+ /* get Acx111 Rx Config */
23439+ memset(rxconfig, 0, sizeof(rxconfig));
23440+ printk ("Interrogating rxconfig\n");
23441+ acx_s_interrogate(adev, &rxconfig, ACX1xx_IE_RXCONFIG);
23442+ printk ("done with queue rxconfig\n");
23443+
23444+ /* get Acx111 fcs error count */
23445+ memset(fcserror, 0, sizeof(fcserror));
23446+ printk ("Interrogating fcs err count\n");
23447+ acx_s_interrogate(adev, &fcserror, ACX1xx_IE_FCS_ERROR_COUNT);
23448+ printk ("done with err count\n");
23449+
23450+ /* get Acx111 rate fallback */
23451+ memset(ratefallback, 0, sizeof(ratefallback));
23452+ printk ("Interrogating rate fallback\n");
23453+ acx_s_interrogate(adev, &ratefallback, ACX1xx_IE_RATE_FALLBACK);
23454+ printk ("done with rate fallback\n");
23455+
23456+ /* force occurrence of a beacon interrupt */
23457+ /* TODO: comment why is this necessary */
23458+ write_reg16(adev, IO_ACX_HINT_TRIG, HOST_INT_BEACON);
23459+
23460+ /* dump Acx111 Mem Configuration */
23461+ printk("dump mem config:\n"
23462+ "data read: %d, struct size: %d\n"
23463+ "Number of stations: %1X\n"
23464+ "Memory block size: %1X\n"
23465+ "tx/rx memory block allocation: %1X\n"
23466+ "count rx: %X / tx: %X queues\n"
23467+ "options %1X\n"
23468+ "fragmentation %1X\n"
23469+ "Rx Queue 1 Count Descriptors: %X\n"
23470+ "Rx Queue 1 Host Memory Start: %X\n"
23471+ "Tx Queue 1 Count Descriptors: %X\n"
23472+ "Tx Queue 1 Attributes: %X\n",
23473+ memconf.len, (int) sizeof(memconf),
23474+ memconf.no_of_stations,
23475+ memconf.memory_block_size,
23476+ memconf.tx_rx_memory_block_allocation,
23477+ memconf.count_rx_queues, memconf.count_tx_queues,
23478+ memconf.options,
23479+ memconf.fragmentation,
23480+ memconf.rx_queue1_count_descs,
23481+ acx2cpu(memconf.rx_queue1_host_rx_start),
23482+ memconf.tx_queue1_count_descs,
23483+ memconf.tx_queue1_attributes);
23484+
23485+ /* dump Acx111 Queue Configuration */
23486+ printk("dump queue head:\n"
23487+ "data read: %d, struct size: %d\n"
23488+ "tx_memory_block_address (from card): %X\n"
23489+ "rx_memory_block_address (from card): %X\n"
23490+ "rx1_queue address (from card): %X\n"
23491+ "tx1_queue address (from card): %X\n"
23492+ "tx1_queue attributes (from card): %X\n",
23493+ queueconf.len, (int) sizeof(queueconf),
23494+ queueconf.tx_memory_block_address,
23495+ queueconf.rx_memory_block_address,
23496+ queueconf.rx1_queue_address,
23497+ queueconf.tx1_queue_address,
23498+ queueconf.tx1_attributes);
23499+
23500+ /* dump Acx111 Mem Map */
23501+ printk("dump mem map:\n"
23502+ "data read: %d, struct size: %d\n"
23503+ "Code start: %X\n"
23504+ "Code end: %X\n"
23505+ "WEP default key start: %X\n"
23506+ "WEP default key end: %X\n"
23507+ "STA table start: %X\n"
23508+ "STA table end: %X\n"
23509+ "Packet template start: %X\n"
23510+ "Packet template end: %X\n"
23511+ "Queue memory start: %X\n"
23512+ "Queue memory end: %X\n"
23513+ "Packet memory pool start: %X\n"
23514+ "Packet memory pool end: %X\n"
23515+ "iobase: %p\n"
23516+ "iobase2: %p\n",
23517+ *((u16 *)&memmap[0x02]), (int) sizeof(memmap),
23518+ *((u32 *)&memmap[0x04]),
23519+ *((u32 *)&memmap[0x08]),
23520+ *((u32 *)&memmap[0x0C]),
23521+ *((u32 *)&memmap[0x10]),
23522+ *((u32 *)&memmap[0x14]),
23523+ *((u32 *)&memmap[0x18]),
23524+ *((u32 *)&memmap[0x1C]),
23525+ *((u32 *)&memmap[0x20]),
23526+ *((u32 *)&memmap[0x24]),
23527+ *((u32 *)&memmap[0x28]),
23528+ *((u32 *)&memmap[0x2C]),
23529+ *((u32 *)&memmap[0x30]),
23530+ adev->iobase,
23531+ adev->iobase2);
23532+
23533+ /* dump Acx111 Rx Config */
23534+ printk("dump rx config:\n"
23535+ "data read: %d, struct size: %d\n"
23536+ "rx config: %X\n"
23537+ "rx filter config: %X\n",
23538+ *((u16 *)&rxconfig[0x02]), (int) sizeof(rxconfig),
23539+ *((u16 *)&rxconfig[0x04]),
23540+ *((u16 *)&rxconfig[0x06]));
23541+
23542+ /* dump Acx111 fcs error */
23543+ printk("dump fcserror:\n"
23544+ "data read: %d, struct size: %d\n"
23545+ "fcserrors: %X\n",
23546+ *((u16 *)&fcserror[0x02]), (int) sizeof(fcserror),
23547+ *((u32 *)&fcserror[0x04]));
23548+
23549+ /* dump Acx111 rate fallback */
23550+ printk("dump rate fallback:\n"
23551+ "data read: %d, struct size: %d\n"
23552+ "ratefallback: %X\n",
23553+ *((u16 *)&ratefallback[0x02]), (int) sizeof(ratefallback),
23554+ *((u8 *)&ratefallback[0x04]));
23555+
23556+ /* protect against IRQ */
23557+ acx_lock(adev, flags);
23558+
23559+ /* dump acx111 internal rx descriptor ring buffer */
23560+ rxdesc = adev->rxdesc_start;
23561+
23562+ /* loop over complete receive pool */
23563+ if (rxdesc) for (i = 0; i < RX_CNT; i++) {
23564+ printk("\ndump internal rxdesc %d:\n"
23565+ "mem pos %p\n"
23566+ "next 0x%X\n"
23567+ "acx mem pointer (dynamic) 0x%X\n"
23568+ "CTL (dynamic) 0x%X\n"
23569+ "Rate (dynamic) 0x%X\n"
23570+ "RxStatus (dynamic) 0x%X\n"
23571+ "Mod/Pre (dynamic) 0x%X\n",
23572+ i,
23573+ rxdesc,
23574+ acx2cpu(rxdesc->pNextDesc),
23575+ acx2cpu(rxdesc->ACXMemPtr),
23576+ rxdesc->Ctl_8,
23577+ rxdesc->rate,
23578+ rxdesc->error,
23579+ rxdesc->SNR);
23580+ rxdesc++;
23581+ }
23582+
23583+ /* dump host rx descriptor ring buffer */
23584+
23585+ rxhostdesc = adev->rxhostdesc_start;
23586+
23587+ /* loop over complete receive pool */
23588+ if (rxhostdesc) for (i = 0; i < RX_CNT; i++) {
23589+ printk("\ndump host rxdesc %d:\n"
23590+ "mem pos %p\n"
23591+ "buffer mem pos 0x%X\n"
23592+ "buffer mem offset 0x%X\n"
23593+ "CTL 0x%X\n"
23594+ "Length 0x%X\n"
23595+ "next 0x%X\n"
23596+ "Status 0x%X\n",
23597+ i,
23598+ rxhostdesc,
23599+ acx2cpu(rxhostdesc->data_phy),
23600+ rxhostdesc->data_offset,
23601+ le16_to_cpu(rxhostdesc->Ctl_16),
23602+ le16_to_cpu(rxhostdesc->length),
23603+ acx2cpu(rxhostdesc->desc_phy_next),
23604+ rxhostdesc->Status);
23605+ rxhostdesc++;
23606+ }
23607+
23608+ /* dump acx111 internal tx descriptor ring buffer */
23609+ txdesc = adev->txdesc_start;
23610+
23611+ /* loop over complete transmit pool */
23612+ if (txdesc) for (i = 0; i < TX_CNT; i++) {
23613+ printk("\ndump internal txdesc %d:\n"
23614+ "size 0x%X\n"
23615+ "mem pos %p\n"
23616+ "next 0x%X\n"
23617+ "acx mem pointer (dynamic) 0x%X\n"
23618+ "host mem pointer (dynamic) 0x%X\n"
23619+ "length (dynamic) 0x%X\n"
23620+ "CTL (dynamic) 0x%X\n"
23621+ "CTL2 (dynamic) 0x%X\n"
23622+ "Status (dynamic) 0x%X\n"
23623+ "Rate (dynamic) 0x%X\n",
23624+ i,
23625+ (int) sizeof(struct txdesc),
23626+ txdesc,
23627+ acx2cpu(txdesc->pNextDesc),
23628+ acx2cpu(txdesc->AcxMemPtr),
23629+ acx2cpu(txdesc->HostMemPtr),
23630+ le16_to_cpu(txdesc->total_length),
23631+ txdesc->Ctl_8,
23632+ txdesc->Ctl2_8, txdesc->error,
23633+ txdesc->u.r1.rate);
23634+ txdesc = advance_txdesc(adev, txdesc, 1);
23635+ }
23636+
23637+ /* dump host tx descriptor ring buffer */
23638+
23639+ txhostdesc = adev->txhostdesc_start;
23640+
23641+ /* loop over complete host send pool */
23642+ if (txhostdesc) for (i = 0; i < TX_CNT * 2; i++) {
23643+ printk("\ndump host txdesc %d:\n"
23644+ "mem pos %p\n"
23645+ "buffer mem pos 0x%X\n"
23646+ "buffer mem offset 0x%X\n"
23647+ "CTL 0x%X\n"
23648+ "Length 0x%X\n"
23649+ "next 0x%X\n"
23650+ "Status 0x%X\n",
23651+ i,
23652+ txhostdesc,
23653+ acx2cpu(txhostdesc->data_phy),
23654+ txhostdesc->data_offset,
23655+ le16_to_cpu(txhostdesc->Ctl_16),
23656+ le16_to_cpu(txhostdesc->length),
23657+ acx2cpu(txhostdesc->desc_phy_next),
23658+ le32_to_cpu(txhostdesc->Status));
23659+ txhostdesc++;
23660+ }
23661+
23662+ /* write_reg16(adev, 0xb4, 0x4); */
23663+
23664+ acx_unlock(adev, flags);
23665+end_ok:
23666+
23667+ acx_sem_unlock(adev);
23668+#endif /* ACX_DEBUG */
23669+ return OK;
23670+}
23671+
23672+
23673+/***********************************************************************
23674+*/
23675+int
23676+acx100mem_ioctl_set_phy_amp_bias(
23677+ struct net_device *ndev,
23678+ struct iw_request_info *info,
23679+ struct iw_param *vwrq,
23680+ char *extra)
23681+{
23682+ acx_device_t *adev = ndev2adev(ndev);
23683+ unsigned long flags;
23684+ u16 gpio_old;
23685+
23686+ if (!IS_ACX100(adev)) {
23687+ /* WARNING!!!
23688+ * Removing this check *might* damage
23689+ * hardware, since we're tweaking GPIOs here after all!!!
23690+ * You've been warned...
23691+ * WARNING!!! */
23692+ printk("acx: sorry, setting bias level for non-acx100 "
23693+ "is not supported yet\n");
23694+ return OK;
23695+ }
23696+
23697+ if (*extra > 7) {
23698+ printk("acx: invalid bias parameter, range is 0-7\n");
23699+ return -EINVAL;
23700+ }
23701+
23702+ acx_sem_lock(adev);
23703+
23704+ /* Need to lock accesses to [IO_ACX_GPIO_OUT]:
23705+ * IRQ handler uses it to update LED */
23706+ acx_lock(adev, flags);
23707+ gpio_old = read_reg16(adev, IO_ACX_GPIO_OUT);
23708+ write_reg16(adev, IO_ACX_GPIO_OUT, (gpio_old & 0xf8ff) | ((u16)*extra << 8));
23709+ acx_unlock(adev, flags);
23710+
23711+ log(L_DEBUG, "gpio_old: 0x%04X\n", gpio_old);
23712+ printk("%s: PHY power amplifier bias: old:%d, new:%d\n",
23713+ ndev->name,
23714+ (gpio_old & 0x0700) >> 8, (unsigned char)*extra);
23715+
23716+ acx_sem_unlock(adev);
23717+
23718+ return OK;
23719+}
23720+
23721+/***************************************************************
23722+** acxmem_l_alloc_tx
23723+** Actually returns a txdesc_t* ptr
23724+**
23725+** FIXME: in case of fragments, should allocate multiple descrs
23726+** after figuring out how many we need and whether we still have
23727+** sufficiently many.
23728+*/
23729+tx_t*
23730+acxmem_l_alloc_tx(acx_device_t *adev)
23731+{
23732+ struct txdesc *txdesc;
23733+ unsigned head;
23734+ u8 ctl8;
23735+ static int txattempts = 0;
23736+
23737+ FN_ENTER;
23738+
23739+ if (unlikely(!adev->tx_free)) {
23740+ printk("acx: BUG: no free txdesc left\n");
23741+ /*
23742+ * Probably the ACX ignored a transmit attempt and now there's a packet
23743+ * sitting in the queue we think should be transmitting but the ACX doesn't
23744+ * know about.
23745+ * On the first pass, send the ACX a TxProc interrupt to try moving
23746+ * things along, and if that doesn't work (ie, we get called again) completely
23747+ * flush the transmit queue.
23748+ */
23749+ if (txattempts < 10) {
23750+ txattempts++;
23751+ printk ("acx: trying to wake up ACX\n");
23752+ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_TXPRC);
23753+ write_flush(adev); }
23754+ else {
23755+ txattempts = 0;
23756+ printk ("acx: flushing transmit queue.\n");
23757+ acxmem_l_clean_txdesc_emergency (adev);
23758+ }
23759+ txdesc = NULL;
23760+ goto end;
23761+ }
23762+
23763+ /*
23764+ * Make a quick check to see if there is transmit buffer space on
23765+ * the ACX. This can't guarantee there is enough space for the packet
23766+ * since we don't yet know how big it is, but it will prevent at least some
23767+ * annoyances.
23768+ */
23769+ if (!adev->acx_txbuf_blocks_free) {
23770+ txdesc = NULL;
23771+ goto end;
23772+ }
23773+
23774+ head = adev->tx_head;
23775+ /*
23776+ * txdesc points to ACX memory
23777+ */
23778+ txdesc = get_txdesc(adev, head);
23779+ ctl8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8));
23780+
23781+ /*
23782+ * If we don't own the buffer (HOSTOWN) it is certainly not free; however,
23783+ * we may have previously thought we had enough memory to send
23784+ * a packet, allocated the buffer then gave up when we found not enough
23785+ * transmit buffer space on the ACX. In that case, HOSTOWN and
23786+ * ACXDONE will both be set.
23787+ */
23788+ if (unlikely(DESC_CTL_HOSTOWN != (ctl8 & DESC_CTL_HOSTOWN))) {
23789+ /* whoops, descr at current index is not free, so probably
23790+ * ring buffer already full */
23791+ printk("acx: BUG: tx_head:%d Ctl8:0x%02X - failed to find "
23792+ "free txdesc\n", head, ctl8);
23793+ txdesc = NULL;
23794+ goto end;
23795+ }
23796+
23797+ /* Needed in case txdesc won't be eventually submitted for tx */
23798+ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), DESC_CTL_ACXDONE_HOSTOWN);
23799+
23800+ adev->tx_free--;
23801+ log(L_BUFT, "tx: got desc %u, %u remain\n",
23802+ head, adev->tx_free);
23803+ /* Keep a few free descs between head and tail of tx ring.
23804+ ** It is not absolutely needed, just feels safer */
23805+ if (adev->tx_free < TX_STOP_QUEUE) {
23806+ log(L_BUF, "stop queue (%u tx desc left)\n",
23807+ adev->tx_free);
23808+ acx_stop_queue(adev->ndev, NULL);
23809+ }
23810+
23811+ /* returning current descriptor, so advance to next free one */
23812+ adev->tx_head = (head + 1) % TX_CNT;
23813+end:
23814+ FN_EXIT0;
23815+
23816+ return (tx_t*)txdesc;
23817+}
23818+
23819+
23820+/***************************************************************
23821+** acxmem_l_dealloc_tx
23822+** Clears out a previously allocatedvoid acxmem_l_dealloc_tx(tx_t *tx_opaque);
23823+ transmit descriptor. The ACX
23824+** can get confused if we skip transmit descriptors in the queue,
23825+** so when we don't need a descriptor return it to its original
23826+** state and move the queue head pointer back.
23827+**
23828+*/
23829+void
23830+acxmem_l_dealloc_tx(acx_device_t *adev, tx_t *tx_opaque)
23831+{
23832+ /*
23833+ * txdesc is the address of the descriptor on the ACX.
23834+ */
23835+ txdesc_t *txdesc = (txdesc_t*)tx_opaque;
23836+ txdesc_t tmptxdesc;
23837+ int index;
23838+
23839+ memset (&tmptxdesc, 0, sizeof(tmptxdesc));
23840+ tmptxdesc.Ctl_8 = DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG;
23841+ tmptxdesc.u.r1.rate = 0x0a;
23842+
23843+ /*
23844+ * Clear out all of the transmit descriptor except for the next pointer
23845+ */
23846+ copy_to_slavemem (adev, (u32) &(txdesc->HostMemPtr),
23847+ (u8 *) &(tmptxdesc.HostMemPtr),
23848+ sizeof (tmptxdesc) - sizeof(tmptxdesc.pNextDesc));
23849+
23850+ /*
23851+ * This is only called immediately after we've allocated, so we should
23852+ * be able to set the head back to this descriptor.
23853+ */
23854+ index = ((u8*) txdesc - (u8*)adev->txdesc_start) / adev->txdesc_size;
23855+ printk ("acx_dealloc: moving head from %d to %d\n", adev->tx_head, index);
23856+ adev->tx_head = index;
23857+}
23858+
23859+
23860+/***********************************************************************
23861+*/
23862+void*
23863+acxmem_l_get_txbuf(acx_device_t *adev, tx_t* tx_opaque)
23864+{
23865+ return get_txhostdesc(adev, (txdesc_t*)tx_opaque)->data;
23866+}
23867+
23868+
23869+/***********************************************************************
23870+** acxmem_l_tx_data
23871+**
23872+** Can be called from IRQ (rx -> (AP bridging or mgmt response) -> tx).
23873+** Can be called from acx_i_start_xmit (data frames from net core).
23874+**
23875+** FIXME: in case of fragments, should loop over the number of
23876+** pre-allocated tx descrs, properly setting up transfer data and
23877+** CTL_xxx flags according to fragment number.
23878+*/
23879+void
23880+acxmem_update_queue_indicator (acx_device_t *adev, int txqueue)
23881+{
23882+#ifdef USING_MORE_THAN_ONE_TRANSMIT_QUEUE
23883+ u32 indicator;
23884+ unsigned long flags;
23885+ int count;
23886+
23887+ /*
23888+ * Can't handle an interrupt while we're fiddling with the ACX's lock,
23889+ * according to TI. The ACX is supposed to hold fw_lock for at most
23890+ * 500ns.
23891+ */
23892+ local_irq_save (flags);
23893+
23894+ /*
23895+ * Wait for ACX to release the lock (at most 500ns).
23896+ */
23897+ count = 0;
23898+ while (read_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->fw_lock))
23899+ && (count++ < 50)) {
23900+ ndelay (10);
23901+ }
23902+ if (count < 50) {
23903+
23904+ /*
23905+ * Take out the host lock - anything non-zero will work, so don't worry about
23906+ * be/le
23907+ */
23908+ write_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->host_lock), 1);
23909+
23910+ /*
23911+ * Avoid a race condition
23912+ */
23913+ count = 0;
23914+ while (read_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->fw_lock))
23915+ && (count++ < 50)) {
23916+ ndelay (10);
23917+ }
23918+
23919+ if (count < 50) {
23920+ /*
23921+ * Mark the queue active
23922+ */
23923+ indicator = read_slavemem32 (adev, (u32) &(adev->acx_queue_indicator->indicator));
23924+ indicator |= cpu_to_le32 (1 << txqueue);
23925+ write_slavemem32 (adev, (u32) &(adev->acx_queue_indicator->indicator), indicator);
23926+ }
23927+
23928+ /*
23929+ * Release the host lock
23930+ */
23931+ write_slavemem16 (adev, (u32) &(adev->acx_queue_indicator->host_lock), 0);
23932+
23933+ }
23934+
23935+ /*
23936+ * Restore interrupts
23937+ */
23938+ local_irq_restore (flags);
23939+#endif
23940+}
23941+
23942+void
23943+acxmem_l_tx_data(acx_device_t *adev, tx_t* tx_opaque, int len)
23944+{
23945+ /*
23946+ * txdesc is the address on the ACX
23947+ */
23948+ txdesc_t *txdesc = (txdesc_t*)tx_opaque;
23949+ txhostdesc_t *hostdesc1, *hostdesc2;
23950+ client_t *clt;
23951+ u16 rate_cur;
23952+ u8 Ctl_8, Ctl2_8;
23953+ u32 addr;
23954+
23955+ FN_ENTER;
23956+ /* fw doesn't tx such packets anyhow */
23957+ if (unlikely(len < WLAN_HDR_A3_LEN))
23958+ goto end;
23959+
23960+ hostdesc1 = get_txhostdesc(adev, txdesc);
23961+ /* modify flag status in separate variable to be able to write it back
23962+ * in one big swoop later (also in order to have less device memory
23963+ * accesses) */
23964+ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8));
23965+ Ctl2_8 = 0; /* really need to init it to 0, not txdesc->Ctl2_8, it seems */
23966+
23967+ hostdesc2 = hostdesc1 + 1;
23968+
23969+ /* DON'T simply set Ctl field to 0 here globally,
23970+ * it needs to maintain a consistent flag status (those are state flags!!),
23971+ * otherwise it may lead to severe disruption. Only set or reset particular
23972+ * flags at the exact moment this is needed... */
23973+
23974+ /* let chip do RTS/CTS handshaking before sending
23975+ * in case packet size exceeds threshold */
23976+ if (len > adev->rts_threshold)
23977+ SET_BIT(Ctl2_8, DESC_CTL2_RTS);
23978+ else
23979+ CLEAR_BIT(Ctl2_8, DESC_CTL2_RTS);
23980+
23981+ switch (adev->mode) {
23982+ case ACX_MODE_0_ADHOC:
23983+ case ACX_MODE_3_AP:
23984+ clt = acx_l_sta_list_get(adev, ((wlan_hdr_t*)hostdesc1->data)->a1);
23985+ break;
23986+ case ACX_MODE_2_STA:
23987+ clt = adev->ap_client;
23988+ break;
23989+#if 0
23990+/* testing was done on acx111: */
23991+ case ACX_MODE_MONITOR:
23992+ SET_BIT(Ctl2_8, 0
23993+/* sends CTS to self before packet */
23994+ + DESC_CTL2_SEQ /* don't increase sequence field */
23995+/* not working (looks like good fcs is still added) */
23996+ + DESC_CTL2_FCS /* don't add the FCS */
23997+/* not tested */
23998+ + DESC_CTL2_MORE_FRAG
23999+/* not tested */
24000+ + DESC_CTL2_RETRY /* don't increase retry field */
24001+/* not tested */
24002+ + DESC_CTL2_POWER /* don't increase power mgmt. field */
24003+/* no effect */
24004+ + DESC_CTL2_WEP /* encrypt this frame */
24005+/* not tested */
24006+ + DESC_CTL2_DUR /* don't increase duration field */
24007+ );
24008+ /* fallthrough */
24009+#endif
24010+ default: /* ACX_MODE_OFF, ACX_MODE_MONITOR */
24011+ clt = NULL;
24012+ break;
24013+ }
24014+
24015+ rate_cur = clt ? clt->rate_cur : adev->rate_bcast;
24016+ if (unlikely(!rate_cur)) {
24017+ printk("acx: driver bug! bad ratemask\n");
24018+ goto end;
24019+ }
24020+
24021+ /* used in tx cleanup routine for auto rate and accounting: */
24022+ put_txcr(adev, txdesc, clt, rate_cur);
24023+
24024+ write_slavemem16 (adev, (u32) &(txdesc->total_length), cpu_to_le16(len));
24025+ hostdesc2->length = cpu_to_le16(len - WLAN_HDR_A3_LEN);
24026+ if (IS_ACX111(adev)) {
24027+ /* note that if !txdesc->do_auto, txrate->cur
24028+ ** has only one nonzero bit */
24029+ txdesc->u.r2.rate111 = cpu_to_le16(
24030+ rate_cur
24031+ /* WARNING: I was never able to make it work with prism54 AP.
24032+ ** It was falling down to 1Mbit where shortpre is not applicable,
24033+ ** and not working at all at "5,11 basic rates only" setting.
24034+ ** I even didn't see tx packets in radio packet capture.
24035+ ** Disabled for now --vda */
24036+ /*| ((clt->shortpre && clt->cur!=RATE111_1) ? RATE111_SHORTPRE : 0) */
24037+ );
24038+#ifdef TODO_FIGURE_OUT_WHEN_TO_SET_THIS
24039+ /* should add this to rate111 above as necessary */
24040+ | (clt->pbcc511 ? RATE111_PBCC511 : 0)
24041+#endif
24042+ hostdesc1->length = cpu_to_le16(len);
24043+ } else { /* ACX100 */
24044+ u8 rate_100 = clt ? clt->rate_100 : adev->rate_bcast100;
24045+ write_slavemem8 (adev, (u32) &(txdesc->u.r1.rate), rate_100);
24046+#ifdef TODO_FIGURE_OUT_WHEN_TO_SET_THIS
24047+ if (clt->pbcc511) {
24048+ if (n == RATE100_5 || n == RATE100_11)
24049+ n |= RATE100_PBCC511;
24050+ }
24051+
24052+ if (clt->shortpre && (clt->cur != RATE111_1))
24053+ SET_BIT(Ctl_8, DESC_CTL_SHORT_PREAMBLE); /* set Short Preamble */
24054+#endif
24055+ /* set autodma and reclaim and 1st mpdu */
24056+ SET_BIT(Ctl_8, DESC_CTL_FIRSTFRAG);
24057+
24058+#if ACX_FRAGMENTATION
24059+ /* SET_BIT(Ctl2_8, DESC_CTL2_MORE_FRAG); cannot set it unconditionally, needs to be set for all non-last fragments */
24060+#endif
24061+ hostdesc1->length = cpu_to_le16(WLAN_HDR_A3_LEN);
24062+
24063+ /*
24064+ * Since we're not using autodma copy the packet data to the acx now.
24065+ * Even host descriptors point to the packet header, and the odd indexed
24066+ * descriptor following points to the packet data.
24067+ *
24068+ * The first step is to find free memory in the ACX transmit buffers.
24069+ * They don't necessarily map one to one with the transmit queue entries,
24070+ * so search through them starting just after the last one used.
24071+ */
24072+ addr = allocate_acx_txbuf_space (adev, len);
24073+ if (addr) {
24074+ chaincopy_to_slavemem (adev, addr, hostdesc1->data, len);
24075+ }
24076+ else {
24077+ /*
24078+ * Bummer. We thought we might have enough room in the transmit
24079+ * buffers to send this packet, but it turns out we don't. alloc_tx
24080+ * has already marked this transmit descriptor as HOSTOWN and ACXDONE,
24081+ * which means the ACX will hang when it gets to this descriptor unless
24082+ * we do something about it. Having a bubble in the transmit queue just
24083+ * doesn't seem to work, so we have to reset this transmit queue entry's
24084+ * state to its original value and back up our head pointer to point
24085+ * back to this entry.
24086+ */
24087+ hostdesc1->length = 0;
24088+ hostdesc2->length = 0;
24089+ write_slavemem16 (adev, (u32) &(txdesc->total_length), 0);
24090+ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG);
24091+ adev->tx_head = ((u8*) txdesc - (u8*) adev->txdesc_start) / adev->txdesc_size;
24092+ goto end;
24093+ }
24094+ /*
24095+ * Tell the ACX where the packet is.
24096+ */
24097+ write_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr), addr);
24098+
24099+ }
24100+ /* don't need to clean ack/rts statistics here, already
24101+ * done on descr cleanup */
24102+
24103+ /* clears HOSTOWN and ACXDONE bits, thus telling that the descriptors
24104+ * are now owned by the acx100; do this as LAST operation */
24105+ CLEAR_BIT(Ctl_8, DESC_CTL_ACXDONE_HOSTOWN);
24106+ /* flush writes before we release hostdesc to the adapter here */
24107+ //wmb();
24108+
24109+ /* write back modified flags */
24110+ /*
24111+ * At this point Ctl_8 should just be FIRSTFRAG
24112+ */
24113+ write_slavemem8 (adev, (u32) &(txdesc->Ctl2_8),Ctl2_8);
24114+ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), Ctl_8);
24115+ /* unused: txdesc->tx_time = cpu_to_le32(jiffies); */
24116+
24117+ /*
24118+ * Update the queue indicator to say there's data on the first queue.
24119+ */
24120+ acxmem_update_queue_indicator (adev, 0);
24121+
24122+ /* flush writes before we tell the adapter that it's its turn now */
24123+ mmiowb();
24124+ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_TXPRC);
24125+ write_flush(adev);
24126+
24127+ /* log the packet content AFTER sending it,
24128+ * in order to not delay sending any further than absolutely needed
24129+ * Do separate logs for acx100/111 to have human-readable rates */
24130+ if (unlikely(acx_debug & (L_XFER|L_DATA))) {
24131+ u16 fc = ((wlan_hdr_t*)hostdesc1->data)->fc;
24132+ if (IS_ACX111(adev))
24133+ printk("tx: pkt (%s): len %d "
24134+ "rate %04X%s status %u\n",
24135+ acx_get_packet_type_string(le16_to_cpu(fc)), len,
24136+ le16_to_cpu(txdesc->u.r2.rate111),
24137+ (le16_to_cpu(txdesc->u.r2.rate111) & RATE111_SHORTPRE) ? "(SPr)" : "",
24138+ adev->status);
24139+ else
24140+ printk("tx: pkt (%s): len %d rate %03u%s status %u\n",
24141+ acx_get_packet_type_string(fc), len,
24142+ read_slavemem8 (adev, (u32) &(txdesc->u.r1.rate)),
24143+ (Ctl_8 & DESC_CTL_SHORT_PREAMBLE) ? "(SPr)" : "",
24144+ adev->status);
24145+
24146+ if (acx_debug & L_DATA) {
24147+ printk("tx: 802.11 [%d]: ", len);
24148+ acx_dump_bytes(hostdesc1->data, len);
24149+ }
24150+ }
24151+end:
24152+ FN_EXIT0;
24153+}
24154+
24155+
24156+/***********************************************************************
24157+** acxmem_l_clean_txdesc
24158+**
24159+** This function resets the txdescs' status when the ACX100
24160+** signals the TX done IRQ (txdescs have been processed), starting with
24161+** the pool index of the descriptor which we would use next,
24162+** in order to make sure that we can be as fast as possible
24163+** in filling new txdescs.
24164+** Everytime we get called we know where the next packet to be cleaned is.
24165+*/
24166+
24167+#if !ACX_DEBUG
24168+static inline void log_txbuffer(const acx_device_t *adev) {}
24169+#else
24170+static void
24171+log_txbuffer(acx_device_t *adev)
24172+{
24173+ txdesc_t *txdesc;
24174+ int i;
24175+ u8 Ctl_8;
24176+
24177+ /* no FN_ENTER here, we don't want that */
24178+ /* no locks here, since it's entirely non-critical code */
24179+ txdesc = adev->txdesc_start;
24180+ if (unlikely(!txdesc)) return;
24181+ printk("tx: desc->Ctl8's:");
24182+ for (i = 0; i < TX_CNT; i++) {
24183+ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8));
24184+ printk(" %02X", Ctl_8);
24185+ txdesc = advance_txdesc(adev, txdesc, 1);
24186+ }
24187+ printk("\n");
24188+}
24189+#endif
24190+
24191+
24192+static void
24193+handle_tx_error(acx_device_t *adev, u8 error, unsigned int finger)
24194+{
24195+ const char *err = "unknown error";
24196+
24197+ /* hmm, should we handle this as a mask
24198+ * of *several* bits?
24199+ * For now I think only caring about
24200+ * individual bits is ok... */
24201+ switch (error) {
24202+ case 0x01:
24203+ err = "no Tx due to error in other fragment";
24204+ adev->wstats.discard.fragment++;
24205+ break;
24206+ case 0x02:
24207+ err = "Tx aborted";
24208+ adev->stats.tx_aborted_errors++;
24209+ break;
24210+ case 0x04:
24211+ err = "Tx desc wrong parameters";
24212+ adev->wstats.discard.misc++;
24213+ break;
24214+ case 0x08:
24215+ err = "WEP key not found";
24216+ adev->wstats.discard.misc++;
24217+ break;
24218+ case 0x10:
24219+ err = "MSDU lifetime timeout? - try changing "
24220+ "'iwconfig retry lifetime XXX'";
24221+ adev->wstats.discard.misc++;
24222+ break;
24223+ case 0x20:
24224+ err = "excessive Tx retries due to either distance "
24225+ "too high or unable to Tx or Tx frame error - "
24226+ "try changing 'iwconfig txpower XXX' or "
24227+ "'sens'itivity or 'retry'";
24228+ adev->wstats.discard.retries++;
24229+ /* Tx error 0x20 also seems to occur on
24230+ * overheating, so I'm not sure whether we
24231+ * actually want to do aggressive radio recalibration,
24232+ * since people maybe won't notice then that their hardware
24233+ * is slowly getting cooked...
24234+ * Or is it still a safe long distance from utter
24235+ * radio non-functionality despite many radio recalibs
24236+ * to final destructive overheating of the hardware?
24237+ * In this case we really should do recalib here...
24238+ * I guess the only way to find out is to do a
24239+ * potentially fatal self-experiment :-\
24240+ * Or maybe only recalib in case we're using Tx
24241+ * rate auto (on errors switching to lower speed
24242+ * --> less heat?) or 802.11 power save mode?
24243+ *
24244+ * ok, just do it. */
24245+ if (++adev->retry_errors_msg_ratelimit % 4 == 0) {
24246+ if (adev->retry_errors_msg_ratelimit <= 20) {
24247+ printk("%s: several excessive Tx "
24248+ "retry errors occurred, attempting "
24249+ "to recalibrate radio. Radio "
24250+ "drift might be caused by increasing "
24251+ "card temperature, please check the card "
24252+ "before it's too late!\n",
24253+ adev->ndev->name);
24254+ if (adev->retry_errors_msg_ratelimit == 20)
24255+ printk("disabling above message\n");
24256+ }
24257+
24258+ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_RADIO_RECALIB);
24259+ }
24260+ break;
24261+ case 0x40:
24262+ err = "Tx buffer overflow";
24263+ adev->stats.tx_fifo_errors++;
24264+ break;
24265+ case 0x80:
24266+ err = "DMA error";
24267+ adev->wstats.discard.misc++;
24268+ break;
24269+ }
24270+ adev->stats.tx_errors++;
24271+ if (adev->stats.tx_errors <= 20)
24272+ printk("%s: tx error 0x%02X, buf %02u! (%s)\n",
24273+ adev->ndev->name, error, finger, err);
24274+ else
24275+ printk("%s: tx error 0x%02X, buf %02u!\n",
24276+ adev->ndev->name, error, finger);
24277+}
24278+
24279+
24280+unsigned int
24281+acxmem_l_clean_txdesc(acx_device_t *adev)
24282+{
24283+ txdesc_t *txdesc;
24284+ unsigned finger;
24285+ int num_cleaned;
24286+ u16 r111;
24287+ u8 error, ack_failures, rts_failures, rts_ok, r100, Ctl_8;
24288+ u32 acxmem;
24289+ txdesc_t tmptxdesc;
24290+
24291+ FN_ENTER;
24292+
24293+ /*
24294+ * Set up a template descriptor for re-initialization. The only
24295+ * things that get set are Ctl_8 and the rate, and the rate defaults
24296+ * to 1Mbps.
24297+ */
24298+ memset (&tmptxdesc, 0, sizeof (tmptxdesc));
24299+ tmptxdesc.Ctl_8 = DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG;
24300+ tmptxdesc.u.r1.rate = 0x0a;
24301+
24302+ if (unlikely(acx_debug & L_DEBUG))
24303+ log_txbuffer(adev);
24304+
24305+ log(L_BUFT, "tx: cleaning up bufs from %u\n", adev->tx_tail);
24306+
24307+ /* We know first descr which is not free yet. We advance it as far
24308+ ** as we see correct bits set in following descs (if next desc
24309+ ** is NOT free, we shouldn't advance at all). We know that in
24310+ ** front of tx_tail may be "holes" with isolated free descs.
24311+ ** We will catch up when all intermediate descs will be freed also */
24312+
24313+ finger = adev->tx_tail;
24314+ num_cleaned = 0;
24315+ while (likely(finger != adev->tx_head)) {
24316+ txdesc = get_txdesc(adev, finger);
24317+
24318+ /* If we allocated txdesc on tx path but then decided
24319+ ** to NOT use it, then it will be left as a free "bubble"
24320+ ** in the "allocated for tx" part of the ring.
24321+ ** We may meet it on the next ring pass here. */
24322+
24323+ /* stop if not marked as "tx finished" and "host owned" */
24324+ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8));
24325+ if ((Ctl_8 & DESC_CTL_ACXDONE_HOSTOWN)
24326+ != DESC_CTL_ACXDONE_HOSTOWN) {
24327+ if (unlikely(!num_cleaned)) { /* maybe remove completely */
24328+ log(L_BUFT, "clean_txdesc: tail isn't free. "
24329+ "tail:%d head:%d\n",
24330+ adev->tx_tail, adev->tx_head);
24331+ }
24332+ break;
24333+ }
24334+
24335+ /* remember desc values... */
24336+ error = read_slavemem8 (adev, (u32) &(txdesc->error));
24337+ ack_failures = read_slavemem8 (adev, (u32) &(txdesc->ack_failures));
24338+ rts_failures = read_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_failures));
24339+ rts_ok = read_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_ok));
24340+ r100 = read_slavemem8 (adev, (u32) &(txdesc->u.r1.rate));
24341+ r111 = le16_to_cpu(read_slavemem16 (adev, (u32) &(txdesc->u.r2.rate111)));
24342+
24343+ /* need to check for certain error conditions before we
24344+ * clean the descriptor: we still need valid descr data here */
24345+ if (unlikely(0x30 & error)) {
24346+ /* only send IWEVTXDROP in case of retry or lifetime exceeded;
24347+ * all other errors mean we screwed up locally */
24348+ union iwreq_data wrqu;
24349+ wlan_hdr_t *hdr;
24350+ txhostdesc_t *hostdesc;
24351+
24352+ hostdesc = get_txhostdesc(adev, txdesc);
24353+ hdr = (wlan_hdr_t *)hostdesc->data;
24354+ MAC_COPY(wrqu.addr.sa_data, hdr->a1);
24355+ wireless_send_event(adev->ndev, IWEVTXDROP, &wrqu, NULL);
24356+ }
24357+
24358+ /*
24359+ * Free up the transmit data buffers
24360+ */
24361+ acxmem = read_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr));
24362+ if (acxmem) {
24363+ reclaim_acx_txbuf_space (adev, acxmem);
24364+ }
24365+
24366+ /* ...and free the desc by clearing all the fields
24367+ except the next pointer */
24368+ copy_to_slavemem (adev,
24369+ (u32) &(txdesc->HostMemPtr),
24370+ (u8 *) &(tmptxdesc.HostMemPtr),
24371+ sizeof (tmptxdesc) - sizeof(tmptxdesc.pNextDesc)
24372+ );
24373+
24374+ adev->tx_free++;
24375+ num_cleaned++;
24376+
24377+ if ((adev->tx_free >= TX_START_QUEUE)
24378+ && (adev->status == ACX_STATUS_4_ASSOCIATED)
24379+ && (acx_queue_stopped(adev->ndev))
24380+ ) {
24381+ log(L_BUF, "tx: wake queue (avail. Tx desc %u)\n",
24382+ adev->tx_free);
24383+ acx_wake_queue(adev->ndev, NULL);
24384+ }
24385+
24386+ /* do error checking, rate handling and logging
24387+ * AFTER having done the work, it's faster */
24388+
24389+ /* do rate handling */
24390+ if (adev->rate_auto) {
24391+ struct client *clt = get_txc(adev, txdesc);
24392+ if (clt) {
24393+ u16 cur = get_txr(adev, txdesc);
24394+ if (clt->rate_cur == cur) {
24395+ acx_l_handle_txrate_auto(adev, clt,
24396+ cur, /* intended rate */
24397+ r100, r111, /* actually used rate */
24398+ (error & 0x30), /* was there an error? */
24399+ TX_CNT + TX_CLEAN_BACKLOG - adev->tx_free);
24400+ }
24401+ }
24402+ }
24403+
24404+ if (unlikely(error))
24405+ handle_tx_error(adev, error, finger);
24406+
24407+ if (IS_ACX111(adev))
24408+ log(L_BUFT, "tx: cleaned %u: !ACK=%u !RTS=%u RTS=%u r111=%04X\n",
24409+ finger, ack_failures, rts_failures, rts_ok, r111);
24410+ else
24411+ log(L_BUFT, "tx: cleaned %u: !ACK=%u !RTS=%u RTS=%u rate=%u\n",
24412+ finger, ack_failures, rts_failures, rts_ok, r100);
24413+
24414+ /* update pointer for descr to be cleaned next */
24415+ finger = (finger + 1) % TX_CNT;
24416+ }
24417+
24418+ /* remember last position */
24419+ adev->tx_tail = finger;
24420+/* end: */
24421+ FN_EXIT1(num_cleaned);
24422+ return num_cleaned;
24423+}
24424+
24425+/* clean *all* Tx descriptors, and regardless of their previous state.
24426+ * Used for brute-force reset handling. */
24427+void
24428+acxmem_l_clean_txdesc_emergency(acx_device_t *adev)
24429+{
24430+ txdesc_t *txdesc;
24431+ int i;
24432+ u32 acxmem;
24433+
24434+ FN_ENTER;
24435+
24436+ for (i = 0; i < TX_CNT; i++) {
24437+ txdesc = get_txdesc(adev, i);
24438+
24439+ /* free it */
24440+ write_slavemem8 (adev, (u32) &(txdesc->ack_failures), 0);
24441+ write_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_failures), 0);
24442+ write_slavemem8 (adev, (u32) &(txdesc->u.rts.rts_ok), 0);
24443+ write_slavemem8 (adev, (u32) &(txdesc->error), 0);
24444+ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8), DESC_CTL_HOSTOWN);
24445+
24446+ /*
24447+ * Clean up the memory allocated on the ACX for this transmit descriptor.
24448+ */
24449+ acxmem = read_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr));
24450+ if (acxmem) {
24451+ reclaim_acx_txbuf_space (adev, acxmem);
24452+ }
24453+
24454+ write_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr), 0);
24455+ }
24456+
24457+ adev->tx_free = TX_CNT;
24458+
24459+ FN_EXIT0;
24460+}
24461+
24462+
24463+/***********************************************************************
24464+** acxmem_s_create_tx_host_desc_queue
24465+*/
24466+
24467+static void*
24468+allocate(acx_device_t *adev, size_t size, dma_addr_t *phy, const char *msg)
24469+{
24470+ void *ptr;
24471+ ptr = kmalloc (size, GFP_KERNEL);
24472+ /*
24473+ * The ACX can't use the physical address, so we'll have to fake it
24474+ * later and it might be handy to have the virtual address.
24475+ */
24476+ *phy = (dma_addr_t) NULL;
24477+
24478+ if (ptr) {
24479+ log(L_DEBUG, "%s sz=%d adr=0x%p phy=0x%08llx\n",
24480+ msg, (int)size, ptr, (unsigned long long)*phy);
24481+ memset(ptr, 0, size);
24482+ return ptr;
24483+ }
24484+ printk(KERN_ERR "acx: %s allocation FAILED (%d bytes)\n",
24485+ msg, (int)size);
24486+ return NULL;
24487+}
24488+
24489+
24490+/*
24491+ * In the generic slave memory access mode, most of the stuff in
24492+ * the txhostdesc_t is unused. It's only here because the rest of
24493+ * the ACX driver expects it to be since the PCI version uses indirect
24494+ * host memory organization with DMA. Since we're not using DMA the
24495+ * only use we have for the host descriptors is to store the packets
24496+ * on the way out.
24497+ */
24498+static int
24499+acxmem_s_create_tx_host_desc_queue(acx_device_t *adev)
24500+{
24501+ txhostdesc_t *hostdesc;
24502+ u8 *txbuf;
24503+ int i;
24504+
24505+ FN_ENTER;
24506+
24507+ /* allocate TX buffer */
24508+ adev->txbuf_area_size = TX_CNT * WLAN_A4FR_MAXLEN_WEP_FCS;
24509+
24510+ adev->txbuf_start = allocate(adev, adev->txbuf_area_size,
24511+ &adev->txbuf_startphy, "txbuf_start");
24512+ if (!adev->txbuf_start)
24513+ goto fail;
24514+
24515+ /* allocate the TX host descriptor queue pool */
24516+ adev->txhostdesc_area_size = TX_CNT * 2*sizeof(*hostdesc);
24517+
24518+ adev->txhostdesc_start = allocate(adev, adev->txhostdesc_area_size,
24519+ &adev->txhostdesc_startphy, "txhostdesc_start");
24520+ if (!adev->txhostdesc_start)
24521+ goto fail;
24522+
24523+ /* check for proper alignment of TX host descriptor pool */
24524+ if ((long) adev->txhostdesc_start & 3) {
24525+ printk("acx: driver bug: dma alloc returns unaligned address\n");
24526+ goto fail;
24527+ }
24528+
24529+ hostdesc = adev->txhostdesc_start;
24530+ txbuf = adev->txbuf_start;
24531+
24532+#if 0
24533+/* Each tx buffer is accessed by hardware via
24534+** txdesc -> txhostdesc(s) -> txbuffer(s).
24535+** We use only one txhostdesc per txdesc, but it looks like
24536+** acx111 is buggy: it accesses second txhostdesc
24537+** (via hostdesc.desc_phy_next field) even if
24538+** txdesc->length == hostdesc->length and thus
24539+** entire packet was placed into first txhostdesc.
24540+** Due to this bug acx111 hangs unless second txhostdesc
24541+** has le16_to_cpu(hostdesc.length) = 3 (or larger)
24542+** Storing NULL into hostdesc.desc_phy_next
24543+** doesn't seem to help.
24544+**
24545+** Update: although it worked on Xterasys XN-2522g
24546+** with len=3 trick, WG311v2 is even more bogus, doesn't work.
24547+** Keeping this code (#ifdef'ed out) for documentational purposes.
24548+*/
24549+ for (i = 0; i < TX_CNT*2; i++) {
24550+ hostdesc_phy += sizeof(*hostdesc);
24551+ if (!(i & 1)) {
24552+ hostdesc->data_phy = cpu2acx(txbuf_phy);
24553+ /* hostdesc->data_offset = ... */
24554+ /* hostdesc->reserved = ... */
24555+ hostdesc->Ctl_16 = cpu_to_le16(DESC_CTL_HOSTOWN);
24556+ /* hostdesc->length = ... */
24557+ hostdesc->desc_phy_next = cpu2acx(hostdesc_phy);
24558+ hostdesc->pNext = ptr2acx(NULL);
24559+ /* hostdesc->Status = ... */
24560+ /* below: non-hardware fields */
24561+ hostdesc->data = txbuf;
24562+
24563+ txbuf += WLAN_A4FR_MAXLEN_WEP_FCS;
24564+ txbuf_phy += WLAN_A4FR_MAXLEN_WEP_FCS;
24565+ } else {
24566+ /* hostdesc->data_phy = ... */
24567+ /* hostdesc->data_offset = ... */
24568+ /* hostdesc->reserved = ... */
24569+ /* hostdesc->Ctl_16 = ... */
24570+ hostdesc->length = cpu_to_le16(3); /* bug workaround */
24571+ /* hostdesc->desc_phy_next = ... */
24572+ /* hostdesc->pNext = ... */
24573+ /* hostdesc->Status = ... */
24574+ /* below: non-hardware fields */
24575+ /* hostdesc->data = ... */
24576+ }
24577+ hostdesc++;
24578+ }
24579+#endif
24580+/* We initialize two hostdescs so that they point to adjacent
24581+** memory areas. Thus txbuf is really just a contiguous memory area */
24582+ for (i = 0; i < TX_CNT*2; i++) {
24583+ /* ->data is a non-hardware field: */
24584+ hostdesc->data = txbuf;
24585+
24586+ if (!(i & 1)) {
24587+ txbuf += WLAN_HDR_A3_LEN;
24588+ } else {
24589+ txbuf += WLAN_A4FR_MAXLEN_WEP_FCS - WLAN_HDR_A3_LEN;
24590+ }
24591+ hostdesc++;
24592+ }
24593+ hostdesc--;
24594+
24595+ FN_EXIT1(OK);
24596+ return OK;
24597+fail:
24598+ printk("acx: create_tx_host_desc_queue FAILED\n");
24599+ /* dealloc will be done by free function on error case */
24600+ FN_EXIT1(NOT_OK);
24601+ return NOT_OK;
24602+}
24603+
24604+
24605+/***************************************************************
24606+** acxmem_s_create_rx_host_desc_queue
24607+*/
24608+/* the whole size of a data buffer (header plus data body)
24609+ * plus 32 bytes safety offset at the end */
24610+#define RX_BUFFER_SIZE (sizeof(rxbuffer_t) + 32)
24611+
24612+static int
24613+acxmem_s_create_rx_host_desc_queue(acx_device_t *adev)
24614+{
24615+ rxhostdesc_t *hostdesc;
24616+ rxbuffer_t *rxbuf;
24617+ int i;
24618+
24619+ FN_ENTER;
24620+
24621+ /* allocate the RX host descriptor queue pool */
24622+ adev->rxhostdesc_area_size = RX_CNT * sizeof(*hostdesc);
24623+
24624+ adev->rxhostdesc_start = allocate(adev, adev->rxhostdesc_area_size,
24625+ &adev->rxhostdesc_startphy, "rxhostdesc_start");
24626+ if (!adev->rxhostdesc_start)
24627+ goto fail;
24628+
24629+ /* check for proper alignment of RX host descriptor pool */
24630+ if ((long) adev->rxhostdesc_start & 3) {
24631+ printk("acx: driver bug: dma alloc returns unaligned address\n");
24632+ goto fail;
24633+ }
24634+
24635+ /* allocate Rx buffer pool which will be used by the acx
24636+ * to store the whole content of the received frames in it */
24637+ adev->rxbuf_area_size = RX_CNT * RX_BUFFER_SIZE;
24638+
24639+ adev->rxbuf_start = allocate(adev, adev->rxbuf_area_size,
24640+ &adev->rxbuf_startphy, "rxbuf_start");
24641+ if (!adev->rxbuf_start)
24642+ goto fail;
24643+
24644+ rxbuf = adev->rxbuf_start;
24645+ hostdesc = adev->rxhostdesc_start;
24646+
24647+ /* don't make any popular C programming pointer arithmetic mistakes
24648+ * here, otherwise I'll kill you...
24649+ * (and don't dare asking me why I'm warning you about that...) */
24650+ for (i = 0; i < RX_CNT; i++) {
24651+ hostdesc->data = rxbuf;
24652+ hostdesc->length = cpu_to_le16(RX_BUFFER_SIZE);
24653+ rxbuf++;
24654+ hostdesc++;
24655+ }
24656+ hostdesc--;
24657+ FN_EXIT1(OK);
24658+ return OK;
24659+fail:
24660+ printk("acx: create_rx_host_desc_queue FAILED\n");
24661+ /* dealloc will be done by free function on error case */
24662+ FN_EXIT1(NOT_OK);
24663+ return NOT_OK;
24664+}
24665+
24666+
24667+/***************************************************************
24668+** acxmem_s_create_hostdesc_queues
24669+*/
24670+int
24671+acxmem_s_create_hostdesc_queues(acx_device_t *adev)
24672+{
24673+ int result;
24674+ result = acxmem_s_create_tx_host_desc_queue(adev);
24675+ if (OK != result) return result;
24676+ result = acxmem_s_create_rx_host_desc_queue(adev);
24677+ return result;
24678+}
24679+
24680+
24681+/***************************************************************
24682+** acxmem_create_tx_desc_queue
24683+*/
24684+static void
24685+acxmem_create_tx_desc_queue(acx_device_t *adev, u32 tx_queue_start)
24686+{
24687+ txdesc_t *txdesc;
24688+ u32 clr;
24689+ int i;
24690+
24691+ FN_ENTER;
24692+
24693+ if (IS_ACX100(adev))
24694+ adev->txdesc_size = sizeof(*txdesc);
24695+ else
24696+ /* the acx111 txdesc is 4 bytes larger */
24697+ adev->txdesc_size = sizeof(*txdesc) + 4;
24698+
24699+ /*
24700+ * This refers to an ACX address, not one of ours
24701+ */
24702+ adev->txdesc_start = (txdesc_t *) tx_queue_start;
24703+
24704+ log(L_DEBUG, "adev->txdesc_start=%p\n",
24705+ adev->txdesc_start);
24706+
24707+ adev->tx_free = TX_CNT;
24708+ /* done by memset: adev->tx_head = 0; */
24709+ /* done by memset: adev->tx_tail = 0; */
24710+ txdesc = adev->txdesc_start;
24711+
24712+ if (IS_ACX111(adev)) {
24713+ /* ACX111 has a preinitialized Tx buffer! */
24714+ /* loop over whole send pool */
24715+ /* FIXME: do we have to do the hostmemptr stuff here?? */
24716+ for (i = 0; i < TX_CNT; i++) {
24717+ txdesc->Ctl_8 = DESC_CTL_HOSTOWN;
24718+ /* reserve two (hdr desc and payload desc) */
24719+ txdesc = advance_txdesc(adev, txdesc, 1);
24720+ }
24721+ } else {
24722+ /* ACX100 Tx buffer needs to be initialized by us */
24723+ /* clear whole send pool. sizeof is safe here (we are acx100) */
24724+
24725+ /*
24726+ * adev->txdesc_start refers to device memory, so we can't write
24727+ * directly to it.
24728+ */
24729+ clr = (u32) adev->txdesc_start;
24730+ while (clr < (u32) adev->txdesc_start + (TX_CNT * sizeof(*txdesc))) {
24731+ write_slavemem32 (adev, clr, 0);
24732+ clr += 4;
24733+ }
24734+
24735+ /* loop over whole send pool */
24736+ for (i = 0; i < TX_CNT; i++) {
24737+ log(L_DEBUG, "configure card tx descriptor: 0x%p, "
24738+ "size: 0x%X\n", txdesc, adev->txdesc_size);
24739+
24740+ /* initialise ctl */
24741+ /*
24742+ * No auto DMA here
24743+ */
24744+ write_slavemem8 (adev, (u32) &(txdesc->Ctl_8),
24745+ (u8) (DESC_CTL_HOSTOWN | DESC_CTL_FIRSTFRAG));
24746+ /* done by memset(0): txdesc->Ctl2_8 = 0; */
24747+
24748+ /* point to next txdesc */
24749+ write_slavemem32 (adev, (u32) &(txdesc->pNextDesc),
24750+ (u32) cpu_to_le32 ((u8 *) txdesc + adev->txdesc_size));
24751+
24752+ /* go to the next one */
24753+ /* ++ is safe here (we are acx100) */
24754+ txdesc++;
24755+ }
24756+ /* go back to the last one */
24757+ txdesc--;
24758+ /* and point to the first making it a ring buffer */
24759+ write_slavemem32 (adev, (u32) &(txdesc->pNextDesc),
24760+ (u32) cpu_to_le32 (tx_queue_start));
24761+ }
24762+ FN_EXIT0;
24763+}
24764+
24765+
24766+/***************************************************************
24767+** acxmem_create_rx_desc_queue
24768+*/
24769+static void
24770+acxmem_create_rx_desc_queue(acx_device_t *adev, u32 rx_queue_start)
24771+{
24772+ rxdesc_t *rxdesc;
24773+ u32 mem_offs;
24774+ int i;
24775+
24776+ FN_ENTER;
24777+
24778+ /* done by memset: adev->rx_tail = 0; */
24779+
24780+ /* ACX111 doesn't need any further config: preconfigures itself.
24781+ * Simply print ring buffer for debugging */
24782+ if (IS_ACX111(adev)) {
24783+ /* rxdesc_start already set here */
24784+
24785+ adev->rxdesc_start = (rxdesc_t *) rx_queue_start;
24786+
24787+ rxdesc = adev->rxdesc_start;
24788+ for (i = 0; i < RX_CNT; i++) {
24789+ log(L_DEBUG, "rx descriptor %d @ 0x%p\n", i, rxdesc);
24790+ rxdesc = adev->rxdesc_start = (rxdesc_t *)
24791+ acx2cpu(rxdesc->pNextDesc);
24792+ }
24793+ } else {
24794+ /* we didn't pre-calculate rxdesc_start in case of ACX100 */
24795+ /* rxdesc_start should be right AFTER Tx pool */
24796+ adev->rxdesc_start = (rxdesc_t *)
24797+ ((u8 *) adev->txdesc_start + (TX_CNT * sizeof(txdesc_t)));
24798+ /* NB: sizeof(txdesc_t) above is valid because we know
24799+ ** we are in if (acx100) block. Beware of cut-n-pasting elsewhere!
24800+ ** acx111's txdesc is larger! */
24801+
24802+ mem_offs = (u32) adev->rxdesc_start;
24803+ while (mem_offs < (u32) adev->rxdesc_start + (RX_CNT * sizeof (*rxdesc))) {
24804+ write_slavemem32 (adev, mem_offs, 0);
24805+ mem_offs += 4;
24806+ }
24807+
24808+ /* loop over whole receive pool */
24809+ rxdesc = adev->rxdesc_start;
24810+ for (i = 0; i < RX_CNT; i++) {
24811+ log(L_DEBUG, "rx descriptor @ 0x%p\n", rxdesc);
24812+ /* point to next rxdesc */
24813+ write_slavemem32 (adev, (u32) &(rxdesc->pNextDesc),
24814+ (u32) cpu_to_le32 ((u8 *) rxdesc + sizeof(*rxdesc)));
24815+ /* go to the next one */
24816+ rxdesc++;
24817+ }
24818+ /* go to the last one */
24819+ rxdesc--;
24820+
24821+ /* and point to the first making it a ring buffer */
24822+ write_slavemem32 (adev, (u32) &(rxdesc->pNextDesc),
24823+ (u32) cpu_to_le32 (rx_queue_start));
24824+ }
24825+ FN_EXIT0;
24826+}
24827+
24828+
24829+/***************************************************************
24830+** acxmem_create_desc_queues
24831+*/
24832+void
24833+acxmem_create_desc_queues(acx_device_t *adev, u32 tx_queue_start, u32 rx_queue_start)
24834+{
24835+ u32 *p;
24836+ int i;
24837+
24838+ acxmem_create_tx_desc_queue(adev, tx_queue_start);
24839+ acxmem_create_rx_desc_queue(adev, rx_queue_start);
24840+ p = (u32 *) adev->acx_queue_indicator;
24841+ for (i = 0; i < 4; i++) {
24842+ write_slavemem32 (adev, (u32) p, 0);
24843+ p++;
24844+ }
24845+}
24846+
24847+
24848+/***************************************************************
24849+** acxmem_s_proc_diag_output
24850+*/
24851+char*
24852+acxmem_s_proc_diag_output(char *p, acx_device_t *adev)
24853+{
24854+ const char *rtl, *thd, *ttl;
24855+ txdesc_t *txdesc;
24856+ u8 Ctl_8;
24857+ rxdesc_t *rxdesc;
24858+ int i;
24859+ u32 tmp;
24860+ txdesc_t txd;
24861+ u8 buf[0x200];
24862+ int j, k;
24863+
24864+ FN_ENTER;
24865+
24866+#if DUMP_MEM_DURING_DIAG > 0
24867+ dump_acxmem (adev, 0, 0x10000);
24868+ panic ("dump finished");
24869+#endif
24870+
24871+ p += sprintf(p, "** Rx buf **\n");
24872+ rxdesc = adev->rxdesc_start;
24873+ if (rxdesc) for (i = 0; i < RX_CNT; i++) {
24874+ rtl = (i == adev->rx_tail) ? " [tail]" : "";
24875+ Ctl_8 = read_slavemem8 (adev, (u32) &(rxdesc->Ctl_8));
24876+ if (Ctl_8 & DESC_CTL_HOSTOWN)
24877+ p += sprintf(p, "%02u (%02x) FULL%s\n", i, Ctl_8, rtl);
24878+ else
24879+ p += sprintf(p, "%02u (%02x) empty%s\n", i, Ctl_8, rtl);
24880+ rxdesc++;
24881+ }
24882+ p += sprintf(p, "** Tx buf (free %d, Linux netqueue %s) **\n", adev->tx_free,
24883+ acx_queue_stopped(adev->ndev) ? "STOPPED" : "running");
24884+
24885+ p += sprintf(p, "** Tx buf %d blocks total, %d available, free list head %04x\n",
24886+ adev->acx_txbuf_numblocks, adev->acx_txbuf_blocks_free, adev->acx_txbuf_free);
24887+ txdesc = adev->txdesc_start;
24888+ if (txdesc) {
24889+ for (i = 0; i < TX_CNT; i++) {
24890+ thd = (i == adev->tx_head) ? " [head]" : "";
24891+ ttl = (i == adev->tx_tail) ? " [tail]" : "";
24892+ copy_from_slavemem (adev, (u8 *) &txd, (u32) txdesc, sizeof (txd));
24893+ Ctl_8 = read_slavemem8 (adev, (u32) &(txdesc->Ctl_8));
24894+ if (Ctl_8 & DESC_CTL_ACXDONE)
24895+ p += sprintf(p, "%02u ready to free (%02X)%s%s", i, Ctl_8, thd, ttl);
24896+ else if (Ctl_8 & DESC_CTL_HOSTOWN)
24897+ p += sprintf(p, "%02u available (%02X)%s%s", i, Ctl_8, thd, ttl);
24898+ else
24899+ p += sprintf(p, "%02u busy (%02X)%s%s", i, Ctl_8, thd, ttl);
24900+ tmp = read_slavemem32 (adev, (u32) &(txdesc->AcxMemPtr));
24901+ if (tmp) {
24902+ p += sprintf (p, " %04x", tmp);
24903+ while ((tmp = read_slavemem32 (adev, (u32) tmp)) != 0x02000000) {
24904+ tmp <<= 5;
24905+ p += sprintf (p, " %04x", tmp);
24906+ }
24907+ }
24908+ p += sprintf (p, "\n");
24909+ p += sprintf (p, " %04x: %04x %04x %04x %04x %04x %04x %04x %04x %04x %04x %02x %02x %02x %02x\n"
24910+ "%02x %02x %02x %02x %04x\n",
24911+ (u32) txdesc,
24912+ txd.pNextDesc.v, txd.HostMemPtr.v, txd.AcxMemPtr.v, txd.tx_time,
24913+ txd.total_length, txd.Reserved,
24914+ txd.dummy[0], txd.dummy[1], txd.dummy[2], txd.dummy[3],
24915+ txd.Ctl_8, txd.Ctl2_8, txd.error, txd.ack_failures,
24916+ txd.u.rts.rts_failures, txd.u.rts.rts_ok, txd.u.r1.rate, txd.u.r1.queue_ctrl,
24917+ txd.queue_info
24918+ );
24919+ if (txd.AcxMemPtr.v) {
24920+ copy_from_slavemem (adev, buf, txd.AcxMemPtr.v, sizeof (buf));
24921+ for (j = 0; (j < txd.total_length) && (j<(sizeof(buf)-4)); j+=16) {
24922+ p += sprintf (p, " ");
24923+ for (k = 0; (k < 16) && (j+k < txd.total_length); k++) {
24924+ p += sprintf (p, " %02x", buf[j+k+4]);
24925+ }
24926+ p += sprintf (p, "\n");
24927+ }
24928+ }
24929+ txdesc = advance_txdesc(adev, txdesc, 1);
24930+ }
24931+ }
24932+
24933+ p += sprintf(p,
24934+ "\n"
24935+ "** Generic slave data **\n"
24936+ "irq_mask 0x%04x irq_status 0x%04x irq on acx 0x%04x\n"
24937+ "txbuf_start 0x%p, txbuf_area_size %u\n"
24938+ "txdesc_size %u, txdesc_start 0x%p\n"
24939+ "txhostdesc_start 0x%p, txhostdesc_area_size %u\n"
24940+ "txbuf start 0x%04x, txbuf size %d\n"
24941+ "rxdesc_start 0x%p\n"
24942+ "rxhostdesc_start 0x%p, rxhostdesc_area_size %u\n"
24943+ "rxbuf_start 0x%p, rxbuf_area_size %u\n",
24944+ adev->irq_mask, adev->irq_status, read_reg32(adev, IO_ACX_IRQ_STATUS_NON_DES),
24945+ adev->txbuf_start, adev->txbuf_area_size,
24946+ adev->txdesc_size, adev->txdesc_start,
24947+ adev->txhostdesc_start, adev->txhostdesc_area_size,
24948+ adev->acx_txbuf_start, adev->acx_txbuf_numblocks * adev->memblocksize,
24949+ adev->rxdesc_start,
24950+ adev->rxhostdesc_start, adev->rxhostdesc_area_size,
24951+ adev->rxbuf_start, adev->rxbuf_area_size);
24952+ FN_EXIT0;
24953+ return p;
24954+}
24955+
24956+
24957+/***********************************************************************
24958+*/
24959+int
24960+acxmem_proc_eeprom_output(char *buf, acx_device_t *adev)
24961+{
24962+ char *p = buf;
24963+ int i;
24964+
24965+ FN_ENTER;
24966+
24967+ for (i = 0; i < 0x400; i++) {
24968+ acxmem_read_eeprom_byte(adev, i, p++);
24969+ }
24970+
24971+ FN_EXIT1(p - buf);
24972+ return p - buf;
24973+}
24974+
24975+
24976+/***********************************************************************
24977+*/
24978+void
24979+acxmem_set_interrupt_mask(acx_device_t *adev)
24980+{
24981+ if (IS_ACX111(adev)) {
24982+ adev->irq_mask = (u16) ~(0
24983+ | HOST_INT_RX_DATA
24984+ | HOST_INT_TX_COMPLETE
24985+ /* | HOST_INT_TX_XFER */
24986+ /* | HOST_INT_RX_COMPLETE */
24987+ /* | HOST_INT_DTIM */
24988+ /* | HOST_INT_BEACON */
24989+ /* | HOST_INT_TIMER */
24990+ /* | HOST_INT_KEY_NOT_FOUND */
24991+ | HOST_INT_IV_ICV_FAILURE
24992+ | HOST_INT_CMD_COMPLETE
24993+ | HOST_INT_INFO
24994+ | HOST_INT_OVERFLOW
24995+ /* | HOST_INT_PROCESS_ERROR */
24996+ | HOST_INT_SCAN_COMPLETE
24997+ | HOST_INT_FCS_THRESHOLD
24998+ | HOST_INT_UNKNOWN
24999+ );
25000+ /* Or else acx100 won't signal cmd completion, right? */
25001+ adev->irq_mask_off = (u16)~( HOST_INT_CMD_COMPLETE ); /* 0xfdff */
25002+ } else {
25003+ adev->irq_mask = (u16) ~(0
25004+ | HOST_INT_RX_DATA
25005+ | HOST_INT_TX_COMPLETE
25006+ /* | HOST_INT_TX_XFER */
25007+ /* | HOST_INT_RX_COMPLETE */
25008+ /* | HOST_INT_DTIM */
25009+ /* | HOST_INT_BEACON */
25010+ /* | HOST_INT_TIMER */
25011+ /* | HOST_INT_KEY_NOT_FOUND */
25012+ /* | HOST_INT_IV_ICV_FAILURE */
25013+ | HOST_INT_CMD_COMPLETE
25014+ | HOST_INT_INFO
25015+ /* | HOST_INT_OVERFLOW */
25016+ /* | HOST_INT_PROCESS_ERROR */
25017+ | HOST_INT_SCAN_COMPLETE
25018+ /* | HOST_INT_FCS_THRESHOLD */
25019+ /* | HOST_INT_BEACON_MISSED */
25020+ );
25021+ adev->irq_mask_off = (u16)~( HOST_INT_UNKNOWN ); /* 0x7fff */
25022+ }
25023+}
25024+
25025+
25026+/***********************************************************************
25027+*/
25028+int
25029+acx100mem_s_set_tx_level(acx_device_t *adev, u8 level_dbm)
25030+{
25031+ struct acx111_ie_tx_level tx_level;
25032+
25033+ /* since it can be assumed that at least the Maxim radio has a
25034+ * maximum power output of 20dBm and since it also can be
25035+ * assumed that these values drive the DAC responsible for
25036+ * setting the linear Tx level, I'd guess that these values
25037+ * should be the corresponding linear values for a dBm value,
25038+ * in other words: calculate the values from that formula:
25039+ * Y [dBm] = 10 * log (X [mW])
25040+ * then scale the 0..63 value range onto the 1..100mW range (0..20 dBm)
25041+ * and you're done...
25042+ * Hopefully that's ok, but you never know if we're actually
25043+ * right... (especially since Windows XP doesn't seem to show
25044+ * actual Tx dBm values :-P) */
25045+
25046+ /* NOTE: on Maxim, value 30 IS 30mW, and value 10 IS 10mW - so the
25047+ * values are EXACTLY mW!!! Not sure about RFMD and others,
25048+ * though... */
25049+ static const u8 dbm2val_maxim[21] = {
25050+ 63, 63, 63, 62,
25051+ 61, 61, 60, 60,
25052+ 59, 58, 57, 55,
25053+ 53, 50, 47, 43,
25054+ 38, 31, 23, 13,
25055+ 0
25056+ };
25057+ static const u8 dbm2val_rfmd[21] = {
25058+ 0, 0, 0, 1,
25059+ 2, 2, 3, 3,
25060+ 4, 5, 6, 8,
25061+ 10, 13, 16, 20,
25062+ 25, 32, 41, 50,
25063+ 63
25064+ };
25065+ const u8 *table;
25066+
25067+ switch (adev->radio_type) {
25068+ case RADIO_MAXIM_0D:
25069+ table = &dbm2val_maxim[0];
25070+ break;
25071+ case RADIO_RFMD_11:
25072+ case RADIO_RALINK_15:
25073+ table = &dbm2val_rfmd[0];
25074+ break;
25075+ default:
25076+ printk("%s: unknown/unsupported radio type, "
25077+ "cannot modify tx power level yet!\n",
25078+ adev->ndev->name);
25079+ return NOT_OK;
25080+ }
25081+ /*
25082+ * The hx4700 EEPROM, at least, only supports 1 power setting. The configure
25083+ * routine matches the PA bias with the gain, so just use its default value.
25084+ * The values are: 0x2b for the gain and 0x03 for the PA bias. The firmware
25085+ * writes the gain level to the Tx gain control DAC and the PA bias to the Maxim
25086+ * radio's PA bias register. The firmware limits itself to 0 - 64 when writing to the
25087+ * gain control DAC.
25088+ *
25089+ * Physically between the ACX and the radio, higher Tx gain control DAC values result
25090+ * in less power output; 0 volts to the Maxim radio results in the highest output power
25091+ * level, which I'm assuming matches up with 0 in the Tx Gain DAC register.
25092+ *
25093+ * Although there is only the 1 power setting, one of the radio firmware functions adjusts
25094+ * the transmit power level up and down. That function is called by the ACX FIQ handler
25095+ * under certain conditions.
25096+ */
25097+ tx_level.level = 1;
25098+ //return acx_s_configure(adev, &tx_level, ACX1xx_IE_DOT11_TX_POWER_LEVEL);
25099+
25100+ printk("%s: changing radio power level to %u dBm (%u)\n",
25101+ adev->ndev->name, level_dbm, table[level_dbm]);
25102+ acxmem_s_write_phy_reg(adev, 0x11, table[level_dbm]);
25103+
25104+ return 0;
25105+}
25106+
25107+
25108+static struct platform_driver
25109+acxmem_drv_id = {
25110+ .driver = {
25111+ .name = "acx-mem",
25112+ },
25113+ .probe = acxmem_e_probe,
25114+ .remove = __devexit_p(acxmem_e_remove),
25115+#ifdef CONFIG_PM
25116+ .suspend = acxmem_e_suspend,
25117+ .resume = acxmem_e_resume
25118+#endif /* CONFIG_PM */
25119+};
25120+
25121+
25122+/***********************************************************************
25123+** acxmem_e_init_module
25124+**
25125+** Module initialization routine, called once at module load time
25126+*/
25127+int __init
25128+acxmem_e_init_module(void)
25129+{
25130+ int res;
25131+
25132+ FN_ENTER;
25133+
25134+#if (ACX_IO_WIDTH==32)
25135+ printk("acx: compiled to use 32bit I/O access. "
25136+ "I/O timing issues might occur, such as "
25137+ "non-working firmware upload. Report them\n");
25138+#else
25139+ printk("acx: compiled to use 16bit I/O access only "
25140+ "(compatibility mode)\n");
25141+#endif
25142+
25143+#ifdef __LITTLE_ENDIAN
25144+#define ENDIANNESS_STRING "running on a little-endian CPU\n"
25145+#else
25146+#define ENDIANNESS_STRING "running on a BIG-ENDIAN CPU\n"
25147+#endif
25148+ log(L_INIT,
25149+ ENDIANNESS_STRING
25150+ "PCI module " ACX_RELEASE " initialized, "
25151+ "waiting for cards to probe...\n"
25152+ );
25153+
25154+ res = platform_driver_register (&acxmem_drv_id);
25155+ FN_EXIT1(res);
25156+ return res;
25157+}
25158+
25159+
25160+/***********************************************************************
25161+** acxmem_e_cleanup_module
25162+**
25163+** Called at module unload time. This is our last chance to
25164+** clean up after ourselves.
25165+*/
25166+void __exit
25167+acxmem_e_cleanup_module(void)
25168+{
25169+ FN_ENTER;
25170+
25171+ printk ("cleanup_module\n");
25172+ platform_driver_unregister( &acxmem_drv_id );
25173+
25174+ FN_EXIT0;
25175+}
25176+
25177+void acxmem_e_release(struct device *dev) {
25178+}
25179+
25180+MODULE_AUTHOR( "Todd Blumer <todd@sdgsystems.com>" );
25181+MODULE_DESCRIPTION( "ACX Slave Memory Driver" );
25182+MODULE_LICENSE( "GPL" );
25183+
25184Index: linux-2.6.22/drivers/net/wireless/acx/pci.c
25185===================================================================
25186--- /dev/null 1970-01-01 00:00:00.000000000 +0000
25187+++ linux-2.6.22/drivers/net/wireless/acx/pci.c 2007-08-23 18:34:19.000000000 +0200
25188@@ -0,0 +1,4234 @@
25189+/***********************************************************************
25190+** Copyright (C) 2003 ACX100 Open Source Project
25191+**
25192+** The contents of this file are subject to the Mozilla Public
25193+** License Version 1.1 (the "License"); you may not use this file
25194+** except in compliance with the License. You may obtain a copy of
25195+** the License at http://www.mozilla.org/MPL/
25196+**
25197+** Software distributed under the License is distributed on an "AS
25198+** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
25199+** implied. See the License for the specific language governing
25200+** rights and limitations under the License.
25201+**
25202+** Alternatively, the contents of this file may be used under the
25203+** terms of the GNU Public License version 2 (the "GPL"), in which
25204+** case the provisions of the GPL are applicable instead of the
25205+** above. If you wish to allow the use of your version of this file
25206+** only under the terms of the GPL and not to allow others to use
25207+** your version of this file under the MPL, indicate your decision
25208+** by deleting the provisions above and replace them with the notice
25209+** and other provisions required by the GPL. If you do not delete
25210+** the provisions above, a recipient may use your version of this
25211+** file under either the MPL or the GPL.
25212+** ---------------------------------------------------------------------
25213+** Inquiries regarding the ACX100 Open Source Project can be
25214+** made directly to:
25215+**
25216+** acx100-users@lists.sf.net
25217+** http://acx100.sf.net
25218+** ---------------------------------------------------------------------
25219+*/
25220+#define ACX_PCI 1
25221+
25222+#include <linux/version.h>
25223+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18)
25224+#include <linux/config.h>
25225+#endif
25226+
25227+/* Linux 2.6.18+ uses <linux/utsrelease.h> */
25228+#ifndef UTS_RELEASE
25229+#include <linux/utsrelease.h>
25230+#endif
25231+
25232+#include <linux/compiler.h> /* required for Lx 2.6.8 ?? */
25233+#include <linux/kernel.h>
25234+#include <linux/module.h>
25235+#include <linux/moduleparam.h>
25236+#include <linux/sched.h>
25237+#include <linux/types.h>
25238+#include <linux/skbuff.h>
25239+#include <linux/slab.h>
25240+#include <linux/if_arp.h>
25241+#include <linux/rtnetlink.h>
25242+#include <linux/wireless.h>
25243+#include <net/iw_handler.h>
25244+#include <linux/netdevice.h>
25245+#include <linux/ioport.h>
25246+#include <linux/pci.h>
25247+#include <linux/pm.h>
25248+#include <linux/vmalloc.h>
25249+#include <linux/dma-mapping.h>
25250+
25251+#include "acx.h"
25252+
25253+
25254+/***********************************************************************
25255+*/
25256+#define PCI_TYPE (PCI_USES_MEM | PCI_ADDR0 | PCI_NO_ACPI_WAKE)
25257+#define PCI_ACX100_REGION1 0x01
25258+#define PCI_ACX100_REGION1_SIZE 0x1000 /* Memory size - 4K bytes */
25259+#define PCI_ACX100_REGION2 0x02
25260+#define PCI_ACX100_REGION2_SIZE 0x10000 /* Memory size - 64K bytes */
25261+
25262+#define PCI_ACX111_REGION1 0x00
25263+#define PCI_ACX111_REGION1_SIZE 0x2000 /* Memory size - 8K bytes */
25264+#define PCI_ACX111_REGION2 0x01
25265+#define PCI_ACX111_REGION2_SIZE 0x20000 /* Memory size - 128K bytes */
25266+
25267+/* Texas Instruments Vendor ID */
25268+#define PCI_VENDOR_ID_TI 0x104c
25269+
25270+/* ACX100 22Mb/s WLAN controller */
25271+#define PCI_DEVICE_ID_TI_TNETW1100A 0x8400
25272+#define PCI_DEVICE_ID_TI_TNETW1100B 0x8401
25273+
25274+/* ACX111 54Mb/s WLAN controller */
25275+#define PCI_DEVICE_ID_TI_TNETW1130 0x9066
25276+
25277+/* PCI Class & Sub-Class code, Network-'Other controller' */
25278+#define PCI_CLASS_NETWORK_OTHERS 0x0280
25279+
25280+#define CARD_EEPROM_ID_SIZE 6
25281+
25282+#ifndef PCI_D0
25283+/* From include/linux/pci.h */
25284+#define PCI_D0 0
25285+#define PCI_D1 1
25286+#define PCI_D2 2
25287+#define PCI_D3hot 3
25288+#define PCI_D3cold 4
25289+#define PCI_UNKNOWN 5
25290+#define PCI_POWER_ERROR -1
25291+#endif
25292+
25293+
25294+/***********************************************************************
25295+*/
25296+static void acxpci_i_tx_timeout(struct net_device *ndev);
25297+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
25298+static irqreturn_t acxpci_i_interrupt(int irq, void *dev_id);
25299+#else
25300+static irqreturn_t acxpci_i_interrupt(int irq, void *dev_id, struct pt_regs *regs);
25301+#endif
25302+static void acxpci_i_set_multicast_list(struct net_device *ndev);
25303+
25304+static int acxpci_e_open(struct net_device *ndev);
25305+static int acxpci_e_close(struct net_device *ndev);
25306+static void acxpci_s_up(struct net_device *ndev);
25307+static void acxpci_s_down(struct net_device *ndev);
25308+
25309+
25310+/***********************************************************************
25311+** Register access
25312+*/
25313+
25314+/* Pick one */
25315+/* #define INLINE_IO static */
25316+#define INLINE_IO static inline
25317+
25318+INLINE_IO u32
25319+read_reg32(acx_device_t *adev, unsigned int offset)
25320+{
25321+#if ACX_IO_WIDTH == 32
25322+ return readl((u8 *)adev->iobase + adev->io[offset]);
25323+#else
25324+ return readw((u8 *)adev->iobase + adev->io[offset])
25325+ + (readw((u8 *)adev->iobase + adev->io[offset] + 2) << 16);
25326+#endif
25327+}
25328+
25329+INLINE_IO u16
25330+read_reg16(acx_device_t *adev, unsigned int offset)
25331+{
25332+ return readw((u8 *)adev->iobase + adev->io[offset]);
25333+}
25334+
25335+INLINE_IO u8
25336+read_reg8(acx_device_t *adev, unsigned int offset)
25337+{
25338+ return readb((u8 *)adev->iobase + adev->io[offset]);
25339+}
25340+
25341+INLINE_IO void
25342+write_reg32(acx_device_t *adev, unsigned int offset, u32 val)
25343+{
25344+#if ACX_IO_WIDTH == 32
25345+ writel(val, (u8 *)adev->iobase + adev->io[offset]);
25346+#else
25347+ writew(val & 0xffff, (u8 *)adev->iobase + adev->io[offset]);
25348+ writew(val >> 16, (u8 *)adev->iobase + adev->io[offset] + 2);
25349+#endif
25350+}
25351+
25352+INLINE_IO void
25353+write_reg16(acx_device_t *adev, unsigned int offset, u16 val)
25354+{
25355+ writew(val, (u8 *)adev->iobase + adev->io[offset]);
25356+}
25357+
25358+INLINE_IO void
25359+write_reg8(acx_device_t *adev, unsigned int offset, u8 val)
25360+{
25361+ writeb(val, (u8 *)adev->iobase + adev->io[offset]);
25362+}
25363+
25364+/* Handle PCI posting properly:
25365+ * Make sure that writes reach the adapter in case they require to be executed
25366+ * *before* the next write, by reading a random (and safely accessible) register.
25367+ * This call has to be made if there is no read following (which would flush the data
25368+ * to the adapter), yet the written data has to reach the adapter immediately. */
25369+INLINE_IO void
25370+write_flush(acx_device_t *adev)
25371+{
25372+ /* readb(adev->iobase + adev->io[IO_ACX_INFO_MAILBOX_OFFS]); */
25373+ /* faster version (accesses the first register, IO_ACX_SOFT_RESET,
25374+ * which should also be safe): */
25375+ readb(adev->iobase);
25376+}
25377+
25378+INLINE_IO int
25379+adev_present(acx_device_t *adev)
25380+{
25381+ /* fast version (accesses the first register, IO_ACX_SOFT_RESET,
25382+ * which should be safe): */
25383+ return readl(adev->iobase) != 0xffffffff;
25384+}
25385+
25386+
25387+/***********************************************************************
25388+*/
25389+static inline txdesc_t*
25390+get_txdesc(acx_device_t *adev, int index)
25391+{
25392+ return (txdesc_t*) (((u8*)adev->txdesc_start) + index * adev->txdesc_size);
25393+}
25394+
25395+static inline txdesc_t*
25396+advance_txdesc(acx_device_t *adev, txdesc_t* txdesc, int inc)
25397+{
25398+ return (txdesc_t*) (((u8*)txdesc) + inc * adev->txdesc_size);
25399+}
25400+
25401+static txhostdesc_t*
25402+get_txhostdesc(acx_device_t *adev, txdesc_t* txdesc)
25403+{
25404+ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
25405+ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) {
25406+ printk("bad txdesc ptr %p\n", txdesc);
25407+ return NULL;
25408+ }
25409+ index /= adev->txdesc_size;
25410+ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) {
25411+ printk("bad txdesc ptr %p\n", txdesc);
25412+ return NULL;
25413+ }
25414+ return &adev->txhostdesc_start[index*2];
25415+}
25416+
25417+static inline client_t*
25418+get_txc(acx_device_t *adev, txdesc_t* txdesc)
25419+{
25420+ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
25421+ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) {
25422+ printk("bad txdesc ptr %p\n", txdesc);
25423+ return NULL;
25424+ }
25425+ index /= adev->txdesc_size;
25426+ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) {
25427+ printk("bad txdesc ptr %p\n", txdesc);
25428+ return NULL;
25429+ }
25430+ return adev->txc[index];
25431+}
25432+
25433+static inline u16
25434+get_txr(acx_device_t *adev, txdesc_t* txdesc)
25435+{
25436+ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
25437+ index /= adev->txdesc_size;
25438+ return adev->txr[index];
25439+}
25440+
25441+static inline void
25442+put_txcr(acx_device_t *adev, txdesc_t* txdesc, client_t* c, u16 r111)
25443+{
25444+ int index = (u8*)txdesc - (u8*)adev->txdesc_start;
25445+ if (unlikely(ACX_DEBUG && (index % adev->txdesc_size))) {
25446+ printk("bad txdesc ptr %p\n", txdesc);
25447+ return;
25448+ }
25449+ index /= adev->txdesc_size;
25450+ if (unlikely(ACX_DEBUG && (index >= TX_CNT))) {
25451+ printk("bad txdesc ptr %p\n", txdesc);
25452+ return;
25453+ }
25454+ adev->txc[index] = c;
25455+ adev->txr[index] = r111;
25456+}
25457+
25458+
25459+/***********************************************************************
25460+** EEPROM and PHY read/write helpers
25461+*/
25462+/***********************************************************************
25463+** acxpci_read_eeprom_byte
25464+**
25465+** Function called to read an octet in the EEPROM.
25466+**
25467+** This function is used by acxpci_e_probe to check if the
25468+** connected card is a legal one or not.
25469+**
25470+** Arguments:
25471+** adev ptr to acx_device structure
25472+** addr address to read in the EEPROM
25473+** charbuf ptr to a char. This is where the read octet
25474+** will be stored
25475+*/
25476+int
25477+acxpci_read_eeprom_byte(acx_device_t *adev, u32 addr, u8 *charbuf)
25478+{
25479+ int result;
25480+ int count;
25481+
25482+ write_reg32(adev, IO_ACX_EEPROM_CFG, 0);
25483+ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr);
25484+ write_flush(adev);
25485+ write_reg32(adev, IO_ACX_EEPROM_CTL, 2);
25486+
25487+ count = 0xffff;
25488+ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) {
25489+ /* scheduling away instead of CPU burning loop
25490+ * doesn't seem to work here at all:
25491+ * awful delay, sometimes also failure.
25492+ * Doesn't matter anyway (only small delay). */
25493+ if (unlikely(!--count)) {
25494+ printk("%s: timeout waiting for EEPROM read\n",
25495+ adev->ndev->name);
25496+ result = NOT_OK;
25497+ goto fail;
25498+ }
25499+ cpu_relax();
25500+ }
25501+
25502+ *charbuf = read_reg8(adev, IO_ACX_EEPROM_DATA);
25503+ log(L_DEBUG, "EEPROM at 0x%04X = 0x%02X\n", addr, *charbuf);
25504+ result = OK;
25505+
25506+fail:
25507+ return result;
25508+}
25509+
25510+
25511+/***********************************************************************
25512+** We don't lock hw accesses here since we never r/w eeprom in IRQ
25513+** Note: this function sleeps only because of GFP_KERNEL alloc
25514+*/
25515+#ifdef UNUSED
25516+int
25517+acxpci_s_write_eeprom(acx_device_t *adev, u32 addr, u32 len, const u8 *charbuf)
25518+{
25519+ u8 *data_verify = NULL;
25520+ unsigned long flags;
25521+ int count, i;
25522+ int result = NOT_OK;
25523+ u16 gpio_orig;
25524+
25525+ printk("acx: WARNING! I would write to EEPROM now. "
25526+ "Since I really DON'T want to unless you know "
25527+ "what you're doing (THIS CODE WILL PROBABLY "
25528+ "NOT WORK YET!), I will abort that now. And "
25529+ "definitely make sure to make a "
25530+ "/proc/driver/acx_wlan0_eeprom backup copy first!!! "
25531+ "(the EEPROM content includes the PCI config header!! "
25532+ "If you kill important stuff, then you WILL "
25533+ "get in trouble and people DID get in trouble already)\n");
25534+ return OK;
25535+
25536+ FN_ENTER;
25537+
25538+ data_verify = kmalloc(len, GFP_KERNEL);
25539+ if (!data_verify) {
25540+ goto end;
25541+ }
25542+
25543+ /* first we need to enable the OE (EEPROM Output Enable) GPIO line
25544+ * to be able to write to the EEPROM.
25545+ * NOTE: an EEPROM writing success has been reported,
25546+ * but you probably have to modify GPIO_OUT, too,
25547+ * and you probably need to activate a different GPIO
25548+ * line instead! */
25549+ gpio_orig = read_reg16(adev, IO_ACX_GPIO_OE);
25550+ write_reg16(adev, IO_ACX_GPIO_OE, gpio_orig & ~1);
25551+ write_flush(adev);
25552+
25553+ /* ok, now start writing the data out */
25554+ for (i = 0; i < len; i++) {
25555+ write_reg32(adev, IO_ACX_EEPROM_CFG, 0);
25556+ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr + i);
25557+ write_reg32(adev, IO_ACX_EEPROM_DATA, *(charbuf + i));
25558+ write_flush(adev);
25559+ write_reg32(adev, IO_ACX_EEPROM_CTL, 1);
25560+
25561+ count = 0xffff;
25562+ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) {
25563+ if (unlikely(!--count)) {
25564+ printk("WARNING, DANGER!!! "
25565+ "Timeout waiting for EEPROM write\n");
25566+ goto end;
25567+ }
25568+ cpu_relax();
25569+ }
25570+ }
25571+
25572+ /* disable EEPROM writing */
25573+ write_reg16(adev, IO_ACX_GPIO_OE, gpio_orig);
25574+ write_flush(adev);
25575+
25576+ /* now start a verification run */
25577+ for (i = 0; i < len; i++) {
25578+ write_reg32(adev, IO_ACX_EEPROM_CFG, 0);
25579+ write_reg32(adev, IO_ACX_EEPROM_ADDR, addr + i);
25580+ write_flush(adev);
25581+ write_reg32(adev, IO_ACX_EEPROM_CTL, 2);
25582+
25583+ count = 0xffff;
25584+ while (read_reg16(adev, IO_ACX_EEPROM_CTL)) {
25585+ if (unlikely(!--count)) {
25586+ printk("timeout waiting for EEPROM read\n");
25587+ goto end;
25588+ }
25589+ cpu_relax();
25590+ }
25591+
25592+ data_verify[i] = read_reg16(adev, IO_ACX_EEPROM_DATA);
25593+ }
25594+
25595+ if (0 == memcmp(charbuf, data_verify, len))
25596+ result = OK; /* read data matches, success */
25597+
25598+end:
25599+ kfree(data_verify);
25600+ FN_EXIT1(result);
25601+ return result;
25602+}
25603+#endif /* UNUSED */
25604+
25605+
25606+/***********************************************************************
25607+** acxpci_s_read_phy_reg
25608+**
25609+** Messing with rx/tx disabling and enabling here
25610+** (write_reg32(adev, IO_ACX_ENABLE, 0b000000xx)) kills traffic
25611+*/
25612+int
25613+acxpci_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf)
25614+{
25615+ int result = NOT_OK;
25616+ int count;
25617+
25618+ FN_ENTER;
25619+
25620+ write_reg32(adev, IO_ACX_PHY_ADDR, reg);
25621+ write_flush(adev);
25622+ write_reg32(adev, IO_ACX_PHY_CTL, 2);
25623+
25624+ count = 0xffff;
25625+ while (read_reg32(adev, IO_ACX_PHY_CTL)) {
25626+ /* scheduling away instead of CPU burning loop
25627+ * doesn't seem to work here at all:
25628+ * awful delay, sometimes also failure.
25629+ * Doesn't matter anyway (only small delay). */
25630+ if (unlikely(!--count)) {
25631+ printk("%s: timeout waiting for phy read\n",
25632+ adev->ndev->name);
25633+ *charbuf = 0;
25634+ goto fail;
25635+ }
25636+ cpu_relax();
25637+ }
25638+
25639+ log(L_DEBUG, "count was %u\n", count);
25640+ *charbuf = read_reg8(adev, IO_ACX_PHY_DATA);
25641+
25642+ log(L_DEBUG, "radio PHY at 0x%04X = 0x%02X\n", *charbuf, reg);
25643+ result = OK;
25644+ goto fail; /* silence compiler warning */
25645+fail:
25646+ FN_EXIT1(result);
25647+ return result;
25648+}
25649+
25650+
25651+/***********************************************************************
25652+*/
25653+int
25654+acxpci_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value)
25655+{
25656+ FN_ENTER;
25657+
25658+ /* mprusko said that 32bit accesses result in distorted sensitivity
25659+ * on his card. Unconfirmed, looks like it's not true (most likely since we
25660+ * now properly flush writes). */
25661+ write_reg32(adev, IO_ACX_PHY_DATA, value);
25662+ write_reg32(adev, IO_ACX_PHY_ADDR, reg);
25663+ write_flush(adev);
25664+ write_reg32(adev, IO_ACX_PHY_CTL, 1);
25665+ write_flush(adev);
25666+ log(L_DEBUG, "radio PHY write 0x%02X at 0x%04X\n", value, reg);
25667+
25668+ FN_EXIT1(OK);
25669+ return OK;
25670+}
25671+
25672+
25673+#define NO_AUTO_INCREMENT 1
25674+
25675+/***********************************************************************
25676+** acxpci_s_write_fw
25677+**
25678+** Write the firmware image into the card.
25679+**
25680+** Arguments:
25681+** adev wlan device structure
25682+** fw_image firmware image.
25683+**
25684+** Returns:
25685+** 1 firmware image corrupted
25686+** 0 success
25687+*/
25688+static int
25689+acxpci_s_write_fw(acx_device_t *adev, const firmware_image_t *fw_image, u32 offset)
25690+{
25691+ int len, size;
25692+ u32 sum, v32;
25693+ /* we skip the first four bytes which contain the control sum */
25694+ const u8 *p = (u8*)fw_image + 4;
25695+
25696+ /* start the image checksum by adding the image size value */
25697+ sum = p[0]+p[1]+p[2]+p[3];
25698+ p += 4;
25699+
25700+ write_reg32(adev, IO_ACX_SLV_END_CTL, 0);
25701+
25702+#if NO_AUTO_INCREMENT
25703+ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 0); /* use basic mode */
25704+#else
25705+ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 1); /* use autoincrement mode */
25706+ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset); /* configure start address */
25707+ write_flush(adev);
25708+#endif
25709+
25710+ len = 0;
25711+ size = le32_to_cpu(fw_image->size) & (~3);
25712+
25713+ while (likely(len < size)) {
25714+ v32 = be32_to_cpu(*(u32*)p);
25715+ sum += p[0]+p[1]+p[2]+p[3];
25716+ p += 4;
25717+ len += 4;
25718+
25719+#if NO_AUTO_INCREMENT
25720+ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset + len - 4);
25721+ write_flush(adev);
25722+#endif
25723+ write_reg32(adev, IO_ACX_SLV_MEM_DATA, v32);
25724+ }
25725+
25726+ log(L_DEBUG, "firmware written, size:%d sum1:%x sum2:%x\n",
25727+ size, sum, le32_to_cpu(fw_image->chksum));
25728+
25729+ /* compare our checksum with the stored image checksum */
25730+ return (sum != le32_to_cpu(fw_image->chksum));
25731+}
25732+
25733+
25734+/***********************************************************************
25735+** acxpci_s_validate_fw
25736+**
25737+** Compare the firmware image given with
25738+** the firmware image written into the card.
25739+**
25740+** Arguments:
25741+** adev wlan device structure
25742+** fw_image firmware image.
25743+**
25744+** Returns:
25745+** NOT_OK firmware image corrupted or not correctly written
25746+** OK success
25747+*/
25748+static int
25749+acxpci_s_validate_fw(acx_device_t *adev, const firmware_image_t *fw_image,
25750+ u32 offset)
25751+{
25752+ u32 sum, v32, w32;
25753+ int len, size;
25754+ int result = OK;
25755+ /* we skip the first four bytes which contain the control sum */
25756+ const u8 *p = (u8*)fw_image + 4;
25757+
25758+ /* start the image checksum by adding the image size value */
25759+ sum = p[0]+p[1]+p[2]+p[3];
25760+ p += 4;
25761+
25762+ write_reg32(adev, IO_ACX_SLV_END_CTL, 0);
25763+
25764+#if NO_AUTO_INCREMENT
25765+ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 0); /* use basic mode */
25766+#else
25767+ write_reg32(adev, IO_ACX_SLV_MEM_CTL, 1); /* use autoincrement mode */
25768+ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset); /* configure start address */
25769+#endif
25770+
25771+ len = 0;
25772+ size = le32_to_cpu(fw_image->size) & (~3);
25773+
25774+ while (likely(len < size)) {
25775+ v32 = be32_to_cpu(*(u32*)p);
25776+ p += 4;
25777+ len += 4;
25778+
25779+#if NO_AUTO_INCREMENT
25780+ write_reg32(adev, IO_ACX_SLV_MEM_ADDR, offset + len - 4);
25781+#endif
25782+ w32 = read_reg32(adev, IO_ACX_SLV_MEM_DATA);
25783+
25784+ if (unlikely(w32 != v32)) {
25785+ printk("acx: FATAL: firmware upload: "
25786+ "data parts at offset %d don't match (0x%08X vs. 0x%08X)! "
25787+ "I/O timing issues or defective memory, with DWL-xx0+? "
25788+ "ACX_IO_WIDTH=16 may help. Please report\n",
25789+ len, v32, w32);
25790+ result = NOT_OK;
25791+ break;
25792+ }
25793+
25794+ sum += (u8)w32 + (u8)(w32>>8) + (u8)(w32>>16) + (u8)(w32>>24);
25795+ }
25796+
25797+ /* sum control verification */
25798+ if (result != NOT_OK) {
25799+ if (sum != le32_to_cpu(fw_image->chksum)) {
25800+ printk("acx: FATAL: firmware upload: "
25801+ "checksums don't match!\n");
25802+ result = NOT_OK;
25803+ }
25804+ }
25805+
25806+ return result;
25807+}
25808+
25809+
25810+/***********************************************************************
25811+** acxpci_s_upload_fw
25812+**
25813+** Called from acx_reset_dev
25814+*/
25815+static int
25816+acxpci_s_upload_fw(acx_device_t *adev)
25817+{
25818+ firmware_image_t *fw_image = NULL;
25819+ int res = NOT_OK;
25820+ int try;
25821+ u32 file_size;
25822+ char filename[sizeof("tiacx1NNcNN")];
25823+
25824+ FN_ENTER;
25825+
25826+ /* print exact chipset and radio ID to make sure people really get a clue on which files exactly they are supposed to provide,
25827+ * since firmware loading is the biggest enduser PITA with these chipsets.
25828+ * Not printing radio ID in 0xHEX in order to not confuse them into wrong file naming */
25829+ printk( "acx: need to load firmware for acx1%02d chipset with radio ID %02x, please provide via firmware hotplug:\n"
25830+ "acx: either one file only (<c>ombined firmware image file, radio-specific) or two files (radio-less base image file *plus* separate <r>adio-specific extension file)\n",
25831+ IS_ACX111(adev)*11, adev->radio_type);
25832+
25833+ /* Try combined, then main image */
25834+ adev->need_radio_fw = 0;
25835+ snprintf(filename, sizeof(filename), "tiacx1%02dc%02X",
25836+ IS_ACX111(adev)*11, adev->radio_type);
25837+
25838+ fw_image = acx_s_read_fw(&adev->pdev->dev, filename, &file_size);
25839+ if (!fw_image) {
25840+ adev->need_radio_fw = 1;
25841+ filename[sizeof("tiacx1NN")-1] = '\0';
25842+ fw_image = acx_s_read_fw(&adev->pdev->dev, filename, &file_size);
25843+ if (!fw_image) {
25844+ FN_EXIT1(NOT_OK);
25845+ return NOT_OK;
25846+ }
25847+ }
25848+
25849+ for (try = 1; try <= 5; try++) {
25850+ res = acxpci_s_write_fw(adev, fw_image, 0);
25851+ log(L_DEBUG|L_INIT, "acx_write_fw (main/combined): %d\n", res);
25852+ if (OK == res) {
25853+ res = acxpci_s_validate_fw(adev, fw_image, 0);
25854+ log(L_DEBUG|L_INIT, "acx_validate_fw "
25855+ "(main/combined): %d\n", res);
25856+ }
25857+
25858+ if (OK == res) {
25859+ SET_BIT(adev->dev_state_mask, ACX_STATE_FW_LOADED);
25860+ break;
25861+ }
25862+ printk("acx: firmware upload attempt #%d FAILED, "
25863+ "retrying...\n", try);
25864+ acx_s_msleep(1000); /* better wait for a while... */
25865+ }
25866+
25867+ vfree(fw_image);
25868+
25869+ FN_EXIT1(res);
25870+ return res;
25871+}
25872+
25873+
25874+/***********************************************************************
25875+** acxpci_s_upload_radio
25876+**
25877+** Uploads the appropriate radio module firmware into the card.
25878+*/
25879+int
25880+acxpci_s_upload_radio(acx_device_t *adev)
25881+{
25882+ acx_ie_memmap_t mm;
25883+ firmware_image_t *radio_image;
25884+ acx_cmd_radioinit_t radioinit;
25885+ int res = NOT_OK;
25886+ int try;
25887+ u32 offset;
25888+ u32 size;
25889+ char filename[sizeof("tiacx1NNrNN")];
25890+
25891+ if (!adev->need_radio_fw) return OK;
25892+
25893+ FN_ENTER;
25894+
25895+ acx_s_interrogate(adev, &mm, ACX1xx_IE_MEMORY_MAP);
25896+ offset = le32_to_cpu(mm.CodeEnd);
25897+
25898+ snprintf(filename, sizeof(filename), "tiacx1%02dr%02X",
25899+ IS_ACX111(adev)*11,
25900+ adev->radio_type);
25901+ radio_image = acx_s_read_fw(&adev->pdev->dev, filename, &size);
25902+ if (!radio_image) {
25903+ printk("acx: can't load radio module '%s'\n", filename);
25904+ goto fail;
25905+ }
25906+
25907+ acx_s_issue_cmd(adev, ACX1xx_CMD_SLEEP, NULL, 0);
25908+
25909+ for (try = 1; try <= 5; try++) {
25910+ res = acxpci_s_write_fw(adev, radio_image, offset);
25911+ log(L_DEBUG|L_INIT, "acx_write_fw (radio): %d\n", res);
25912+ if (OK == res) {
25913+ res = acxpci_s_validate_fw(adev, radio_image, offset);
25914+ log(L_DEBUG|L_INIT, "acx_validate_fw (radio): %d\n", res);
25915+ }
25916+
25917+ if (OK == res)
25918+ break;
25919+ printk("acx: radio firmware upload attempt #%d FAILED, "
25920+ "retrying...\n", try);
25921+ acx_s_msleep(1000); /* better wait for a while... */
25922+ }
25923+
25924+ acx_s_issue_cmd(adev, ACX1xx_CMD_WAKE, NULL, 0);
25925+ radioinit.offset = cpu_to_le32(offset);
25926+ /* no endian conversion needed, remains in card CPU area: */
25927+ radioinit.len = radio_image->size;
25928+
25929+ vfree(radio_image);
25930+
25931+ if (OK != res)
25932+ goto fail;
25933+
25934+ /* will take a moment so let's have a big timeout */
25935+ acx_s_issue_cmd_timeo(adev, ACX1xx_CMD_RADIOINIT,
25936+ &radioinit, sizeof(radioinit), CMD_TIMEOUT_MS(1000));
25937+
25938+ res = acx_s_interrogate(adev, &mm, ACX1xx_IE_MEMORY_MAP);
25939+fail:
25940+ FN_EXIT1(res);
25941+ return res;
25942+}
25943+
25944+
25945+/***********************************************************************
25946+** acxpci_l_reset_mac
25947+**
25948+** MAC will be reset
25949+** Call context: reset_dev
25950+*/
25951+static void
25952+acxpci_l_reset_mac(acx_device_t *adev)
25953+{
25954+ u16 temp;
25955+
25956+ FN_ENTER;
25957+
25958+ /* halt eCPU */
25959+ temp = read_reg16(adev, IO_ACX_ECPU_CTRL) | 0x1;
25960+ write_reg16(adev, IO_ACX_ECPU_CTRL, temp);
25961+
25962+ /* now do soft reset of eCPU, set bit */
25963+ temp = read_reg16(adev, IO_ACX_SOFT_RESET) | 0x1;
25964+ log(L_DEBUG, "%s: enable soft reset...\n", __func__);
25965+ write_reg16(adev, IO_ACX_SOFT_RESET, temp);
25966+ write_flush(adev);
25967+
25968+ /* now clear bit again: deassert eCPU reset */
25969+ log(L_DEBUG, "%s: disable soft reset and go to init mode...\n", __func__);
25970+ write_reg16(adev, IO_ACX_SOFT_RESET, temp & ~0x1);
25971+
25972+ /* now start a burst read from initial EEPROM */
25973+ temp = read_reg16(adev, IO_ACX_EE_START) | 0x1;
25974+ write_reg16(adev, IO_ACX_EE_START, temp);
25975+ write_flush(adev);
25976+
25977+ FN_EXIT0;
25978+}
25979+
25980+
25981+/***********************************************************************
25982+** acxpci_s_verify_init
25983+*/
25984+static int
25985+acxpci_s_verify_init(acx_device_t *adev)
25986+{
25987+ int result = NOT_OK;
25988+ unsigned long timeout;
25989+
25990+ FN_ENTER;
25991+
25992+ timeout = jiffies + 2*HZ;
25993+ for (;;) {
25994+ u16 irqstat = read_reg16(adev, IO_ACX_IRQ_STATUS_NON_DES);
25995+ if (irqstat & HOST_INT_FCS_THRESHOLD) {
25996+ result = OK;
25997+ write_reg16(adev, IO_ACX_IRQ_ACK, HOST_INT_FCS_THRESHOLD);
25998+ break;
25999+ }
26000+ if (time_after(jiffies, timeout))
26001+ break;
26002+ /* Init may take up to ~0.5 sec total */
26003+ acx_s_msleep(50);
26004+ }
26005+
26006+ FN_EXIT1(result);
26007+ return result;
26008+}
26009+
26010+
26011+/***********************************************************************
26012+** A few low-level helpers
26013+**
26014+** Note: these functions are not protected by lock
26015+** and thus are never allowed to be called from IRQ.
26016+** Also they must not race with fw upload which uses same hw regs
26017+*/
26018+
26019+/***********************************************************************
26020+** acxpci_write_cmd_type_status
26021+*/
26022+
26023+static inline void
26024+acxpci_write_cmd_type_status(acx_device_t *adev, u16 type, u16 status)
26025+{
26026+ writel(type | (status << 16), adev->cmd_area);
26027+ write_flush(adev);
26028+}
26029+
26030+
26031+/***********************************************************************
26032+** acxpci_read_cmd_type_status
26033+*/
26034+static u32
26035+acxpci_read_cmd_type_status(acx_device_t *adev)
26036+{
26037+ u32 cmd_type, cmd_status;
26038+
26039+ cmd_type = readl(adev->cmd_area);
26040+ cmd_status = (cmd_type >> 16);
26041+ cmd_type = (u16)cmd_type;
26042+
26043+ log(L_CTL, "cmd_type:%04X cmd_status:%04X [%s]\n",
26044+ cmd_type, cmd_status,
26045+ acx_cmd_status_str(cmd_status));
26046+
26047+ return cmd_status;
26048+}
26049+
26050+
26051+/***********************************************************************
26052+** acxpci_s_reset_dev
26053+**
26054+** Arguments:
26055+** netdevice that contains the adev variable
26056+** Returns:
26057+** NOT_OK on fail
26058+** OK on success
26059+** Side effects:
26060+** device is hard reset
26061+** Call context:
26062+** acxpci_e_probe
26063+** Comment:
26064+** This resets the device using low level hardware calls
26065+** as well as uploads and verifies the firmware to the card
26066+*/
26067+
26068+static inline void
26069+init_mboxes(acx_device_t *adev)
26070+{
26071+ u32 cmd_offs, info_offs;
26072+
26073+ cmd_offs = read_reg32(adev, IO_ACX_CMD_MAILBOX_OFFS);
26074+ info_offs = read_reg32(adev, IO_ACX_INFO_MAILBOX_OFFS);
26075+ adev->cmd_area = (u8 *)adev->iobase2 + cmd_offs;
26076+ adev->info_area = (u8 *)adev->iobase2 + info_offs;
26077+ log(L_DEBUG, "iobase2=%p\n"
26078+ "cmd_mbox_offset=%X cmd_area=%p\n"
26079+ "info_mbox_offset=%X info_area=%p\n",
26080+ adev->iobase2,
26081+ cmd_offs, adev->cmd_area,
26082+ info_offs, adev->info_area);
26083+}
26084+
26085+
26086+static inline void
26087+read_eeprom_area(acx_device_t *adev)
26088+{
26089+#if ACX_DEBUG > 1
26090+ int offs;
26091+ u8 tmp;
26092+
26093+ for (offs = 0x8c; offs < 0xb9; offs++)
26094+ acxpci_read_eeprom_byte(adev, offs, &tmp);
26095+#endif
26096+}
26097+
26098+
26099+static int
26100+acxpci_s_reset_dev(acx_device_t *adev)
26101+{
26102+ const char* msg = "";
26103+ unsigned long flags;
26104+ int result = NOT_OK;
26105+ u16 hardware_info;
26106+ u16 ecpu_ctrl;
26107+ int count;
26108+
26109+ FN_ENTER;
26110+
26111+ /* reset the device to make sure the eCPU is stopped
26112+ * to upload the firmware correctly */
26113+
26114+ acx_lock(adev, flags);
26115+
26116+ acxpci_l_reset_mac(adev);
26117+
26118+ ecpu_ctrl = read_reg16(adev, IO_ACX_ECPU_CTRL) & 1;
26119+ if (!ecpu_ctrl) {
26120+ msg = "eCPU is already running. ";
26121+ goto end_unlock;
26122+ }
26123+
26124+#ifdef WE_DONT_NEED_THAT_DO_WE
26125+ if (read_reg16(adev, IO_ACX_SOR_CFG) & 2) {
26126+ /* eCPU most likely means "embedded CPU" */
26127+ msg = "eCPU did not start after boot from flash. ";
26128+ goto end_unlock;
26129+ }
26130+
26131+ /* check sense on reset flags */
26132+ if (read_reg16(adev, IO_ACX_SOR_CFG) & 0x10) {
26133+ printk("%s: eCPU did not start after boot (SOR), "
26134+ "is this fatal?\n", adev->ndev->name);
26135+ }
26136+#endif
26137+ /* scan, if any, is stopped now, setting corresponding IRQ bit */
26138+ adev->irq_status |= HOST_INT_SCAN_COMPLETE;
26139+
26140+ acx_unlock(adev, flags);
26141+
26142+ /* need to know radio type before fw load */
26143+ /* Need to wait for arrival of this information in a loop,
26144+ * most probably since eCPU runs some init code from EEPROM
26145+ * (started burst read in reset_mac()) which also
26146+ * sets the radio type ID */
26147+
26148+ count = 0xffff;
26149+ do {
26150+ hardware_info = read_reg16(adev, IO_ACX_EEPROM_INFORMATION);
26151+ if (!--count) {
26152+ msg = "eCPU didn't indicate radio type";
26153+ goto end_fail;
26154+ }
26155+ cpu_relax();
26156+ } while (!(hardware_info & 0xff00)); /* radio type still zero? */
26157+
26158+ /* printk("DEBUG: count %d\n", count); */
26159+ adev->form_factor = hardware_info & 0xff;
26160+ adev->radio_type = hardware_info >> 8;
26161+
26162+ /* load the firmware */
26163+ if (OK != acxpci_s_upload_fw(adev))
26164+ goto end_fail;
26165+
26166+ /* acx_s_msleep(10); this one really shouldn't be required */
26167+
26168+ /* now start eCPU by clearing bit */
26169+ write_reg16(adev, IO_ACX_ECPU_CTRL, ecpu_ctrl & ~0x1);
26170+ log(L_DEBUG, "booted eCPU up and waiting for completion...\n");
26171+
26172+ /* wait for eCPU bootup */
26173+ if (OK != acxpci_s_verify_init(adev)) {
26174+ msg = "timeout waiting for eCPU. ";
26175+ goto end_fail;
26176+ }
26177+ log(L_DEBUG, "eCPU has woken up, card is ready to be configured\n");
26178+
26179+ init_mboxes(adev);
26180+ acxpci_write_cmd_type_status(adev, 0, 0);
26181+
26182+ /* test that EEPROM is readable */
26183+ read_eeprom_area(adev);
26184+
26185+ result = OK;
26186+ goto end;
26187+
26188+/* Finish error message. Indicate which function failed */
26189+end_unlock:
26190+ acx_unlock(adev, flags);
26191+end_fail:
26192+ printk("acx: %sreset_dev() FAILED\n", msg);
26193+end:
26194+ FN_EXIT1(result);
26195+ return result;
26196+}
26197+
26198+
26199+/***********************************************************************
26200+** acxpci_s_issue_cmd_timeo
26201+**
26202+** Sends command to fw, extract result
26203+**
26204+** NB: we do _not_ take lock inside, so be sure to not touch anything
26205+** which may interfere with IRQ handler operation
26206+**
26207+** TODO: busy wait is a bit silly, so:
26208+** 1) stop doing many iters - go to sleep after first
26209+** 2) go to waitqueue based approach: wait, not poll!
26210+*/
26211+#undef FUNC
26212+#define FUNC "issue_cmd"
26213+
26214+#if !ACX_DEBUG
26215+int
26216+acxpci_s_issue_cmd_timeo(
26217+ acx_device_t *adev,
26218+ unsigned int cmd,
26219+ void *buffer,
26220+ unsigned buflen,
26221+ unsigned cmd_timeout)
26222+{
26223+#else
26224+int
26225+acxpci_s_issue_cmd_timeo_debug(
26226+ acx_device_t *adev,
26227+ unsigned cmd,
26228+ void *buffer,
26229+ unsigned buflen,
26230+ unsigned cmd_timeout,
26231+ const char* cmdstr)
26232+{
26233+ unsigned long start = jiffies;
26234+#endif
26235+ const char *devname;
26236+ unsigned counter;
26237+ u16 irqtype;
26238+ u16 cmd_status;
26239+ unsigned long timeout;
26240+
26241+ FN_ENTER;
26242+
26243+ devname = adev->ndev->name;
26244+ if (!devname || !devname[0] || devname[4]=='%')
26245+ devname = "acx";
26246+
26247+ log(L_CTL, FUNC"(cmd:%s,buflen:%u,timeout:%ums,type:0x%04X)\n",
26248+ cmdstr, buflen, cmd_timeout,
26249+ buffer ? le16_to_cpu(((acx_ie_generic_t *)buffer)->type) : -1);
26250+
26251+ if (!(adev->dev_state_mask & ACX_STATE_FW_LOADED)) {
26252+ printk("%s: "FUNC"(): firmware is not loaded yet, "
26253+ "cannot execute commands!\n", devname);
26254+ goto bad;
26255+ }
26256+
26257+ if ((acx_debug & L_DEBUG) && (cmd != ACX1xx_CMD_INTERROGATE)) {
26258+ printk("input buffer (len=%u):\n", buflen);
26259+ acx_dump_bytes(buffer, buflen);
26260+ }
26261+
26262+ /* wait for firmware to become idle for our command submission */
26263+ timeout = HZ/5;
26264+ counter = (timeout * 1000 / HZ) - 1; /* in ms */
26265+ timeout += jiffies;
26266+ do {
26267+ cmd_status = acxpci_read_cmd_type_status(adev);
26268+ /* Test for IDLE state */
26269+ if (!cmd_status)
26270+ break;
26271+ if (counter % 8 == 0) {
26272+ if (time_after(jiffies, timeout)) {
26273+ counter = 0;
26274+ break;
26275+ }
26276+ /* we waited 8 iterations, no luck. Sleep 8 ms */
26277+ acx_s_msleep(8);
26278+ }
26279+ } while (likely(--counter));
26280+
26281+ if (!counter) {
26282+ /* the card doesn't get idle, we're in trouble */
26283+ printk("%s: "FUNC"(): cmd_status is not IDLE: 0x%04X!=0\n",
26284+ devname, cmd_status);
26285+ goto bad;
26286+ } else if (counter < 190) { /* if waited >10ms... */
26287+ log(L_CTL|L_DEBUG, FUNC"(): waited for IDLE %dms. "
26288+ "Please report\n", 199 - counter);
26289+ }
26290+
26291+ /* now write the parameters of the command if needed */
26292+ if (buffer && buflen) {
26293+ /* if it's an INTERROGATE command, just pass the length
26294+ * of parameters to read, as data */
26295+#if CMD_DISCOVERY
26296+ if (cmd == ACX1xx_CMD_INTERROGATE)
26297+ memset_io(adev->cmd_area + 4, 0xAA, buflen);
26298+#endif
26299+ /* adev->cmd_area points to PCI device's memory, not to RAM! */
26300+ memcpy_toio(adev->cmd_area + 4, buffer,
26301+ (cmd == ACX1xx_CMD_INTERROGATE) ? 4 : buflen);
26302+ }
26303+ /* now write the actual command type */
26304+ acxpci_write_cmd_type_status(adev, cmd, 0);
26305+ /* execute command */
26306+ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_CMD);
26307+ write_flush(adev);
26308+
26309+ /* wait for firmware to process command */
26310+
26311+ /* Ensure nonzero and not too large timeout.
26312+ ** Also converts e.g. 100->99, 200->199
26313+ ** which is nice but not essential */
26314+ cmd_timeout = (cmd_timeout-1) | 1;
26315+ if (unlikely(cmd_timeout > 1199))
26316+ cmd_timeout = 1199;
26317+ /* clear CMD_COMPLETE bit. can be set only by IRQ handler: */
26318+ adev->irq_status &= ~HOST_INT_CMD_COMPLETE;
26319+
26320+ /* we schedule away sometimes (timeout can be large) */
26321+ counter = cmd_timeout;
26322+ timeout = jiffies + cmd_timeout * HZ / 1000;
26323+ do {
26324+ if (!adev->irqs_active) { /* IRQ disabled: poll */
26325+ irqtype = read_reg16(adev, IO_ACX_IRQ_STATUS_NON_DES);
26326+ if (irqtype & HOST_INT_CMD_COMPLETE) {
26327+ write_reg16(adev, IO_ACX_IRQ_ACK,
26328+ HOST_INT_CMD_COMPLETE);
26329+ break;
26330+ }
26331+ } else { /* Wait when IRQ will set the bit */
26332+ irqtype = adev->irq_status;
26333+ if (irqtype & HOST_INT_CMD_COMPLETE)
26334+ break;
26335+ }
26336+
26337+ if (counter % 8 == 0) {
26338+ if (time_after(jiffies, timeout)) {
26339+ counter = 0;
26340+ break;
26341+ }
26342+ /* we waited 8 iterations, no luck. Sleep 8 ms */
26343+ acx_s_msleep(8);
26344+ }
26345+ } while (likely(--counter));
26346+
26347+ /* save state for debugging */
26348+ cmd_status = acxpci_read_cmd_type_status(adev);
26349+
26350+ /* put the card in IDLE state */
26351+ acxpci_write_cmd_type_status(adev, 0, 0);
26352+
26353+ if (!counter) { /* timed out! */
26354+ printk("%s: "FUNC"(): timed out %s for CMD_COMPLETE. "
26355+ "irq bits:0x%04X irq_status:0x%04X timeout:%dms "
26356+ "cmd_status:%d (%s)\n",
26357+ devname, (adev->irqs_active) ? "waiting" : "polling",
26358+ irqtype, adev->irq_status, cmd_timeout,
26359+ cmd_status, acx_cmd_status_str(cmd_status));
26360+ goto bad;
26361+ } else if (cmd_timeout - counter > 30) { /* if waited >30ms... */
26362+ log(L_CTL|L_DEBUG, FUNC"(): %s for CMD_COMPLETE %dms. "
26363+ "count:%d. Please report\n",
26364+ (adev->irqs_active) ? "waited" : "polled",
26365+ cmd_timeout - counter, counter);
26366+ }
26367+
26368+ if (1 != cmd_status) { /* it is not a 'Success' */
26369+ printk("%s: "FUNC"(): cmd_status is not SUCCESS: %d (%s). "
26370+ "Took %dms of %d\n",
26371+ devname, cmd_status, acx_cmd_status_str(cmd_status),
26372+ cmd_timeout - counter, cmd_timeout);
26373+ /* zero out result buffer
26374+ * WARNING: this will trash stack in case of illegally large input
26375+ * length! */
26376+ if (buffer && buflen)
26377+ memset(buffer, 0, buflen);
26378+ goto bad;
26379+ }
26380+
26381+ /* read in result parameters if needed */
26382+ if (buffer && buflen && (cmd == ACX1xx_CMD_INTERROGATE)) {
26383+ /* adev->cmd_area points to PCI device's memory, not to RAM! */
26384+ memcpy_fromio(buffer, adev->cmd_area + 4, buflen);
26385+ if (acx_debug & L_DEBUG) {
26386+ printk("output buffer (len=%u): ", buflen);
26387+ acx_dump_bytes(buffer, buflen);
26388+ }
26389+ }
26390+/* ok: */
26391+ log(L_CTL, FUNC"(%s): took %ld jiffies to complete\n",
26392+ cmdstr, jiffies - start);
26393+ FN_EXIT1(OK);
26394+ return OK;
26395+
26396+bad:
26397+ /* Give enough info so that callers can avoid
26398+ ** printing their own diagnostic messages */
26399+#if ACX_DEBUG
26400+ printk("%s: "FUNC"(cmd:%s) FAILED\n", devname, cmdstr);
26401+#else
26402+ printk("%s: "FUNC"(cmd:0x%04X) FAILED\n", devname, cmd);
26403+#endif
26404+ dump_stack();
26405+ FN_EXIT1(NOT_OK);
26406+ return NOT_OK;
26407+}
26408+
26409+
26410+/***********************************************************************
26411+*/
26412+#ifdef NONESSENTIAL_FEATURES
26413+typedef struct device_id {
26414+ unsigned char id[6];
26415+ char *descr;
26416+ char *type;
26417+} device_id_t;
26418+
26419+static const device_id_t
26420+device_ids[] =
26421+{
26422+ {
26423+ {'G', 'l', 'o', 'b', 'a', 'l'},
26424+ NULL,
26425+ NULL,
26426+ },
26427+ {
26428+ {0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
26429+ "uninitialized",
26430+ "SpeedStream SS1021 or Gigafast WF721-AEX"
26431+ },
26432+ {
26433+ {0x80, 0x81, 0x82, 0x83, 0x84, 0x85},
26434+ "non-standard",
26435+ "DrayTek Vigor 520"
26436+ },
26437+ {
26438+ {'?', '?', '?', '?', '?', '?'},
26439+ "non-standard",
26440+ "Level One WPC-0200"
26441+ },
26442+ {
26443+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
26444+ "empty",
26445+ "DWL-650+ variant"
26446+ }
26447+};
26448+
26449+static void
26450+acx_show_card_eeprom_id(acx_device_t *adev)
26451+{
26452+ unsigned char buffer[CARD_EEPROM_ID_SIZE];
26453+ int i;
26454+
26455+ memset(&buffer, 0, CARD_EEPROM_ID_SIZE);
26456+ /* use direct EEPROM access */
26457+ for (i = 0; i < CARD_EEPROM_ID_SIZE; i++) {
26458+ if (OK != acxpci_read_eeprom_byte(adev,
26459+ ACX100_EEPROM_ID_OFFSET + i,
26460+ &buffer[i])) {
26461+ printk("acx: reading EEPROM FAILED\n");
26462+ break;
26463+ }
26464+ }
26465+
26466+ for (i = 0; i < VEC_SIZE(device_ids); i++) {
26467+ if (!memcmp(&buffer, device_ids[i].id, CARD_EEPROM_ID_SIZE)) {
26468+ if (device_ids[i].descr) {
26469+ printk("acx: EEPROM card ID string check "
26470+ "found %s card ID: is this %s?\n",
26471+ device_ids[i].descr, device_ids[i].type);
26472+ }
26473+ break;
26474+ }
26475+ }
26476+ if (i == VEC_SIZE(device_ids)) {
26477+ printk("acx: EEPROM card ID string check found "
26478+ "unknown card: expected 'Global', got '%.*s\'. "
26479+ "Please report\n", CARD_EEPROM_ID_SIZE, buffer);
26480+ }
26481+}
26482+#endif /* NONESSENTIAL_FEATURES */
26483+
26484+
26485+/***********************************************************************
26486+** acxpci_free_desc_queues
26487+**
26488+** Releases the queues that have been allocated, the
26489+** others have been initialised to NULL so this
26490+** function can be used if only part of the queues were allocated.
26491+*/
26492+
26493+static inline void
26494+free_coherent(struct pci_dev *hwdev, size_t size,
26495+ void *vaddr, dma_addr_t dma_handle)
26496+{
26497+ dma_free_coherent(hwdev == NULL ? NULL : &hwdev->dev,
26498+ size, vaddr, dma_handle);
26499+}
26500+
26501+void
26502+acxpci_free_desc_queues(acx_device_t *adev)
26503+{
26504+#define ACX_FREE_QUEUE(size, ptr, phyaddr) \
26505+ if (ptr) { \
26506+ free_coherent(0, size, ptr, phyaddr); \
26507+ ptr = NULL; \
26508+ size = 0; \
26509+ }
26510+
26511+ FN_ENTER;
26512+
26513+ ACX_FREE_QUEUE(adev->txhostdesc_area_size, adev->txhostdesc_start, adev->txhostdesc_startphy);
26514+ ACX_FREE_QUEUE(adev->txbuf_area_size, adev->txbuf_start, adev->txbuf_startphy);
26515+
26516+ adev->txdesc_start = NULL;
26517+
26518+ ACX_FREE_QUEUE(adev->rxhostdesc_area_size, adev->rxhostdesc_start, adev->rxhostdesc_startphy);
26519+ ACX_FREE_QUEUE(adev->rxbuf_area_size, adev->rxbuf_start, adev->rxbuf_startphy);
26520+
26521+ adev->rxdesc_start = NULL;
26522+
26523+ FN_EXIT0;
26524+}
26525+
26526+
26527+/***********************************************************************
26528+** acxpci_s_delete_dma_regions
26529+*/
26530+static void
26531+acxpci_s_delete_dma_regions(acx_device_t *adev)
26532+{
26533+ unsigned long flags;
26534+
26535+ FN_ENTER;
26536+ /* disable radio Tx/Rx. Shouldn't we use the firmware commands
26537+ * here instead? Or are we that much down the road that it's no
26538+ * longer possible here? */
26539+ write_reg16(adev, IO_ACX_ENABLE, 0);
26540+
26541+ acx_s_msleep(100);
26542+
26543+ acx_lock(adev, flags);
26544+ acxpci_free_desc_queues(adev);
26545+ acx_unlock(adev, flags);
26546+
26547+ FN_EXIT0;
26548+}
26549+
26550+
26551+/***********************************************************************
26552+** acxpci_e_probe
26553+**
26554+** Probe routine called when a PCI device w/ matching ID is found.
26555+** Here's the sequence:
26556+** - Allocate the PCI resources.
26557+** - Read the PCMCIA attribute memory to make sure we have a WLAN card
26558+** - Reset the MAC
26559+** - Initialize the dev and wlan data
26560+** - Initialize the MAC
26561+**
26562+** pdev - ptr to pci device structure containing info about pci configuration
26563+** id - ptr to the device id entry that matched this device
26564+*/
26565+static const u16
26566+IO_ACX100[] =
26567+{
26568+ 0x0000, /* IO_ACX_SOFT_RESET */
26569+
26570+ 0x0014, /* IO_ACX_SLV_MEM_ADDR */
26571+ 0x0018, /* IO_ACX_SLV_MEM_DATA */
26572+ 0x001c, /* IO_ACX_SLV_MEM_CTL */
26573+ 0x0020, /* IO_ACX_SLV_END_CTL */
26574+
26575+ 0x0034, /* IO_ACX_FEMR */
26576+
26577+ 0x007c, /* IO_ACX_INT_TRIG */
26578+ 0x0098, /* IO_ACX_IRQ_MASK */
26579+ 0x00a4, /* IO_ACX_IRQ_STATUS_NON_DES */
26580+ 0x00a8, /* IO_ACX_IRQ_STATUS_CLEAR */
26581+ 0x00ac, /* IO_ACX_IRQ_ACK */
26582+ 0x00b0, /* IO_ACX_HINT_TRIG */
26583+
26584+ 0x0104, /* IO_ACX_ENABLE */
26585+
26586+ 0x0250, /* IO_ACX_EEPROM_CTL */
26587+ 0x0254, /* IO_ACX_EEPROM_ADDR */
26588+ 0x0258, /* IO_ACX_EEPROM_DATA */
26589+ 0x025c, /* IO_ACX_EEPROM_CFG */
26590+
26591+ 0x0268, /* IO_ACX_PHY_ADDR */
26592+ 0x026c, /* IO_ACX_PHY_DATA */
26593+ 0x0270, /* IO_ACX_PHY_CTL */
26594+
26595+ 0x0290, /* IO_ACX_GPIO_OE */
26596+
26597+ 0x0298, /* IO_ACX_GPIO_OUT */
26598+
26599+ 0x02a4, /* IO_ACX_CMD_MAILBOX_OFFS */
26600+ 0x02a8, /* IO_ACX_INFO_MAILBOX_OFFS */
26601+ 0x02ac, /* IO_ACX_EEPROM_INFORMATION */
26602+
26603+ 0x02d0, /* IO_ACX_EE_START */
26604+ 0x02d4, /* IO_ACX_SOR_CFG */
26605+ 0x02d8 /* IO_ACX_ECPU_CTRL */
26606+};
26607+
26608+static const u16
26609+IO_ACX111[] =
26610+{
26611+ 0x0000, /* IO_ACX_SOFT_RESET */
26612+
26613+ 0x0014, /* IO_ACX_SLV_MEM_ADDR */
26614+ 0x0018, /* IO_ACX_SLV_MEM_DATA */
26615+ 0x001c, /* IO_ACX_SLV_MEM_CTL */
26616+ 0x0020, /* IO_ACX_SLV_END_CTL */
26617+
26618+ 0x0034, /* IO_ACX_FEMR */
26619+
26620+ 0x00b4, /* IO_ACX_INT_TRIG */
26621+ 0x00d4, /* IO_ACX_IRQ_MASK */
26622+ /* we do mean NON_DES (0xf0), not NON_DES_MASK which is at 0xe0: */
26623+ 0x00f0, /* IO_ACX_IRQ_STATUS_NON_DES */
26624+ 0x00e4, /* IO_ACX_IRQ_STATUS_CLEAR */
26625+ 0x00e8, /* IO_ACX_IRQ_ACK */
26626+ 0x00ec, /* IO_ACX_HINT_TRIG */
26627+
26628+ 0x01d0, /* IO_ACX_ENABLE */
26629+
26630+ 0x0338, /* IO_ACX_EEPROM_CTL */
26631+ 0x033c, /* IO_ACX_EEPROM_ADDR */
26632+ 0x0340, /* IO_ACX_EEPROM_DATA */
26633+ 0x0344, /* IO_ACX_EEPROM_CFG */
26634+
26635+ 0x0350, /* IO_ACX_PHY_ADDR */
26636+ 0x0354, /* IO_ACX_PHY_DATA */
26637+ 0x0358, /* IO_ACX_PHY_CTL */
26638+
26639+ 0x0374, /* IO_ACX_GPIO_OE */
26640+
26641+ 0x037c, /* IO_ACX_GPIO_OUT */
26642+
26643+ 0x0388, /* IO_ACX_CMD_MAILBOX_OFFS */
26644+ 0x038c, /* IO_ACX_INFO_MAILBOX_OFFS */
26645+ 0x0390, /* IO_ACX_EEPROM_INFORMATION */
26646+
26647+ 0x0100, /* IO_ACX_EE_START */
26648+ 0x0104, /* IO_ACX_SOR_CFG */
26649+ 0x0108, /* IO_ACX_ECPU_CTRL */
26650+};
26651+
26652+static void
26653+dummy_netdev_init(struct net_device *ndev) {}
26654+
26655+static int __devinit
26656+acxpci_e_probe(struct pci_dev *pdev, const struct pci_device_id *id)
26657+{
26658+ acx111_ie_configoption_t co;
26659+ unsigned long mem_region1 = 0;
26660+ unsigned long mem_region2 = 0;
26661+ unsigned long mem_region1_size;
26662+ unsigned long mem_region2_size;
26663+ unsigned long phymem1;
26664+ unsigned long phymem2;
26665+ void *mem1 = NULL;
26666+ void *mem2 = NULL;
26667+ acx_device_t *adev = NULL;
26668+ struct net_device *ndev = NULL;
26669+ const char *chip_name;
26670+ int result = -EIO;
26671+ int err;
26672+ u8 chip_type;
26673+
26674+ FN_ENTER;
26675+
26676+ /* Enable the PCI device */
26677+ if (pci_enable_device(pdev)) {
26678+ printk("acx: pci_enable_device() FAILED\n");
26679+ result = -ENODEV;
26680+ goto fail_pci_enable_device;
26681+ }
26682+
26683+ /* enable busmastering (required for CardBus) */
26684+ pci_set_master(pdev);
26685+
26686+ /* FIXME: prism54 calls pci_set_mwi() here,
26687+ * should we do/support the same? */
26688+
26689+ /* chiptype is u8 but id->driver_data is ulong
26690+ ** Works for now (possible values are 1 and 2) */
26691+ chip_type = (u8)id->driver_data;
26692+ /* acx100 and acx111 have different PCI memory regions */
26693+ if (chip_type == CHIPTYPE_ACX100) {
26694+ chip_name = "ACX100";
26695+ mem_region1 = PCI_ACX100_REGION1;
26696+ mem_region1_size = PCI_ACX100_REGION1_SIZE;
26697+
26698+ mem_region2 = PCI_ACX100_REGION2;
26699+ mem_region2_size = PCI_ACX100_REGION2_SIZE;
26700+ } else if (chip_type == CHIPTYPE_ACX111) {
26701+ chip_name = "ACX111";
26702+ mem_region1 = PCI_ACX111_REGION1;
26703+ mem_region1_size = PCI_ACX111_REGION1_SIZE;
26704+
26705+ mem_region2 = PCI_ACX111_REGION2;
26706+ mem_region2_size = PCI_ACX111_REGION2_SIZE;
26707+ } else {
26708+ printk("acx: unknown chip type 0x%04X\n", chip_type);
26709+ goto fail_unknown_chiptype;
26710+ }
26711+
26712+ /* Figure out our resources */
26713+ phymem1 = pci_resource_start(pdev, mem_region1);
26714+ phymem2 = pci_resource_start(pdev, mem_region2);
26715+ if (!request_mem_region(phymem1, pci_resource_len(pdev, mem_region1), "acx_1")) {
26716+ printk("acx: cannot reserve PCI memory region 1 (are you sure "
26717+ "you have CardBus support in kernel?)\n");
26718+ goto fail_request_mem_region1;
26719+ }
26720+ if (!request_mem_region(phymem2, pci_resource_len(pdev, mem_region2), "acx_2")) {
26721+ printk("acx: cannot reserve PCI memory region 2\n");
26722+ goto fail_request_mem_region2;
26723+ }
26724+
26725+ /* this used to be ioremap(), but ioremap_nocache()
26726+ * is much less risky, right? (and slower?)
26727+ * FIXME: we may want to go back to cached variant if it's
26728+ * certain that our code really properly handles
26729+ * cached operation (memory barriers, volatile?, ...)
26730+ * (but always keep this comment here regardless!)
26731+ * Possibly make this a driver config setting? */
26732+
26733+ mem1 = ioremap_nocache(phymem1, mem_region1_size);
26734+ if (!mem1) {
26735+ printk("acx: ioremap() FAILED\n");
26736+ goto fail_ioremap1;
26737+ }
26738+ mem2 = ioremap_nocache(phymem2, mem_region2_size);
26739+ if (!mem2) {
26740+ printk("acx: ioremap() #2 FAILED\n");
26741+ goto fail_ioremap2;
26742+ }
26743+
26744+ printk("acx: found %s-based wireless network card at %s, irq:%d, "
26745+ "phymem1:0x%lX, phymem2:0x%lX, mem1:0x%p, mem1_size:%ld, "
26746+ "mem2:0x%p, mem2_size:%ld\n",
26747+ chip_name, pci_name(pdev), pdev->irq, phymem1, phymem2,
26748+ mem1, mem_region1_size,
26749+ mem2, mem_region2_size);
26750+ log(L_ANY, "initial debug setting is 0x%04X\n", acx_debug);
26751+
26752+ if (0 == pdev->irq) {
26753+ printk("acx: can't use IRQ 0\n");
26754+ goto fail_irq;
26755+ }
26756+
26757+ ndev = alloc_netdev(sizeof(*adev), "wlan%d", dummy_netdev_init);
26758+ /* (NB: memsets to 0 entire area) */
26759+ if (!ndev) {
26760+ printk("acx: no memory for netdevice struct\n");
26761+ goto fail_alloc_netdev;
26762+ }
26763+
26764+ ether_setup(ndev);
26765+ ndev->open = &acxpci_e_open;
26766+ ndev->stop = &acxpci_e_close;
26767+ ndev->hard_start_xmit = &acx_i_start_xmit;
26768+ ndev->get_stats = &acx_e_get_stats;
26769+#if IW_HANDLER_VERSION <= 5
26770+ ndev->get_wireless_stats = &acx_e_get_wireless_stats;
26771+#endif
26772+ ndev->wireless_handlers = (struct iw_handler_def *)&acx_ioctl_handler_def;
26773+ ndev->set_multicast_list = &acxpci_i_set_multicast_list;
26774+ ndev->tx_timeout = &acxpci_i_tx_timeout;
26775+ ndev->change_mtu = &acx_e_change_mtu;
26776+ ndev->watchdog_timeo = 4 * HZ;
26777+ ndev->irq = pdev->irq;
26778+ ndev->base_addr = pci_resource_start(pdev, 0);
26779+
26780+ adev = ndev2adev(ndev);
26781+ spin_lock_init(&adev->lock); /* initial state: unlocked */
26782+ /* We do not start with downed sem: we want PARANOID_LOCKING to work */
26783+ sema_init(&adev->sem, 1); /* initial state: 1 (upped) */
26784+ /* since nobody can see new netdev yet, we can as well
26785+ ** just _presume_ that we're under sem (instead of actually taking it): */
26786+ /* acx_sem_lock(adev); */
26787+ adev->pdev = pdev;
26788+ adev->ndev = ndev;
26789+ adev->dev_type = DEVTYPE_PCI;
26790+ adev->chip_type = chip_type;
26791+ adev->chip_name = chip_name;
26792+ adev->io = (CHIPTYPE_ACX100 == chip_type) ? IO_ACX100 : IO_ACX111;
26793+ adev->membase = phymem1;
26794+ adev->iobase = mem1;
26795+ adev->membase2 = phymem2;
26796+ adev->iobase2 = mem2;
26797+ /* to find crashes due to weird driver access
26798+ * to unconfigured interface (ifup) */
26799+ adev->mgmt_timer.function = (void (*)(unsigned long))0x0000dead;
26800+
26801+#ifdef NONESSENTIAL_FEATURES
26802+ acx_show_card_eeprom_id(adev);
26803+#endif /* NONESSENTIAL_FEATURES */
26804+
26805+#ifdef SET_MODULE_OWNER
26806+ SET_MODULE_OWNER(ndev);
26807+#endif
26808+ SET_NETDEV_DEV(ndev, &pdev->dev);
26809+
26810+ log(L_IRQ|L_INIT, "using IRQ %d\n", pdev->irq);
26811+
26812+ /* need to be able to restore PCI state after a suspend */
26813+ pci_save_state(pdev);
26814+ pci_set_drvdata(pdev, ndev);
26815+
26816+ /* ok, pci setup is finished, now start initializing the card */
26817+
26818+ /* NB: read_reg() reads may return bogus data before reset_dev(),
26819+ * since the firmware which directly controls large parts of the I/O
26820+ * registers isn't initialized yet.
26821+ * acx100 seems to be more affected than acx111 */
26822+ if (OK != acxpci_s_reset_dev(adev))
26823+ goto fail_reset;
26824+
26825+ if (IS_ACX100(adev)) {
26826+ /* ACX100: configopt struct in cmd mailbox - directly after reset */
26827+ memcpy_fromio(&co, adev->cmd_area, sizeof(co));
26828+ }
26829+
26830+ if (OK != acx_s_init_mac(adev))
26831+ goto fail_init_mac;
26832+
26833+ if (IS_ACX111(adev)) {
26834+ /* ACX111: configopt struct needs to be queried after full init */
26835+ acx_s_interrogate(adev, &co, ACX111_IE_CONFIG_OPTIONS);
26836+ }
26837+
26838+/* TODO: merge them into one function, they are called just once and are the same for pci & usb */
26839+ if (OK != acxpci_read_eeprom_byte(adev, 0x05, &adev->eeprom_version))
26840+ goto fail_read_eeprom_version;
26841+
26842+ acx_s_parse_configoption(adev, &co);
26843+ acx_s_set_defaults(adev);
26844+ acx_s_get_firmware_version(adev); /* needs to be after acx_s_init_mac() */
26845+ acx_display_hardware_details(adev);
26846+
26847+ /* Register the card, AFTER everything else has been set up,
26848+ * since otherwise an ioctl could step on our feet due to
26849+ * firmware operations happening in parallel or uninitialized data */
26850+ err = register_netdev(ndev);
26851+ if (OK != err) {
26852+ printk("acx: register_netdev() FAILED: %d\n", err);
26853+ goto fail_register_netdev;
26854+ }
26855+
26856+ acx_proc_register_entries(ndev);
26857+
26858+ /* Now we have our device, so make sure the kernel doesn't try
26859+ * to send packets even though we're not associated to a network yet */
26860+ acx_stop_queue(ndev, "on probe");
26861+ acx_carrier_off(ndev, "on probe");
26862+
26863+ /* after register_netdev() userspace may start working with dev
26864+ * (in particular, on other CPUs), we only need to up the sem */
26865+ /* acx_sem_unlock(adev); */
26866+
26867+ printk("acx "ACX_RELEASE": net device %s, driver compiled "
26868+ "against wireless extensions %d and Linux %s\n",
26869+ ndev->name, WIRELESS_EXT, UTS_RELEASE);
26870+
26871+#if CMD_DISCOVERY
26872+ great_inquisitor(adev);
26873+#endif
26874+
26875+ result = OK;
26876+ goto done;
26877+
26878+ /* error paths: undo everything in reverse order... */
26879+
26880+fail_register_netdev:
26881+
26882+ acxpci_s_delete_dma_regions(adev);
26883+ pci_set_drvdata(pdev, NULL);
26884+
26885+fail_init_mac:
26886+fail_read_eeprom_version:
26887+fail_reset:
26888+
26889+ free_netdev(ndev);
26890+fail_alloc_netdev:
26891+fail_irq:
26892+
26893+ iounmap(mem2);
26894+fail_ioremap2:
26895+
26896+ iounmap(mem1);
26897+fail_ioremap1:
26898+
26899+ release_mem_region(pci_resource_start(pdev, mem_region2),
26900+ pci_resource_len(pdev, mem_region2));
26901+fail_request_mem_region2:
26902+
26903+ release_mem_region(pci_resource_start(pdev, mem_region1),
26904+ pci_resource_len(pdev, mem_region1));
26905+fail_request_mem_region1:
26906+fail_unknown_chiptype:
26907+
26908+ pci_disable_device(pdev);
26909+fail_pci_enable_device:
26910+
26911+ pci_set_power_state(pdev, PCI_D3hot);
26912+
26913+done:
26914+ FN_EXIT1(result);
26915+ return result;
26916+}
26917+
26918+
26919+/***********************************************************************
26920+** acxpci_e_remove
26921+**
26922+** Shut device down (if not hot unplugged)
26923+** and deallocate PCI resources for the acx chip.
26924+**
26925+** pdev - ptr to PCI device structure containing info about pci configuration
26926+*/
26927+static void __devexit
26928+acxpci_e_remove(struct pci_dev *pdev)
26929+{
26930+ struct net_device *ndev;
26931+ acx_device_t *adev;
26932+ unsigned long mem_region1, mem_region2;
26933+ unsigned long flags;
26934+
26935+ FN_ENTER;
26936+
26937+ ndev = (struct net_device*) pci_get_drvdata(pdev);
26938+ if (!ndev) {
26939+ log(L_DEBUG, "%s: card is unused. Skipping any release code\n",
26940+ __func__);
26941+ goto end;
26942+ }
26943+
26944+ adev = ndev2adev(ndev);
26945+
26946+ /* If device wasn't hot unplugged... */
26947+ if (adev_present(adev)) {
26948+
26949+ acx_sem_lock(adev);
26950+
26951+ /* disable both Tx and Rx to shut radio down properly */
26952+ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_TX, NULL, 0);
26953+ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_RX, NULL, 0);
26954+
26955+#ifdef REDUNDANT
26956+ /* put the eCPU to sleep to save power
26957+ * Halting is not possible currently,
26958+ * since not supported by all firmware versions */
26959+ acx_s_issue_cmd(adev, ACX100_CMD_SLEEP, NULL, 0);
26960+#endif
26961+ acx_lock(adev, flags);
26962+ /* disable power LED to save power :-) */
26963+ log(L_INIT, "switching off power LED to save power\n");
26964+ acxpci_l_power_led(adev, 0);
26965+ /* stop our eCPU */
26966+ if (IS_ACX111(adev)) {
26967+ /* FIXME: does this actually keep halting the eCPU?
26968+ * I don't think so...
26969+ */
26970+ acxpci_l_reset_mac(adev);
26971+ } else {
26972+ u16 temp;
26973+ /* halt eCPU */
26974+ temp = read_reg16(adev, IO_ACX_ECPU_CTRL) | 0x1;
26975+ write_reg16(adev, IO_ACX_ECPU_CTRL, temp);
26976+ write_flush(adev);
26977+ }
26978+ acx_unlock(adev, flags);
26979+
26980+ acx_sem_unlock(adev);
26981+ }
26982+
26983+ /* unregister the device to not let the kernel
26984+ * (e.g. ioctls) access a half-deconfigured device
26985+ * NB: this will cause acxpci_e_close() to be called,
26986+ * thus we shouldn't call it under sem! */
26987+ log(L_INIT, "removing device %s\n", ndev->name);
26988+ unregister_netdev(ndev);
26989+
26990+ /* unregister_netdev ensures that no references to us left.
26991+ * For paranoid reasons we continue to follow the rules */
26992+ acx_sem_lock(adev);
26993+
26994+ if (adev->dev_state_mask & ACX_STATE_IFACE_UP) {
26995+ acxpci_s_down(ndev);
26996+ CLEAR_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
26997+ }
26998+
26999+ acx_proc_unregister_entries(ndev);
27000+
27001+ if (IS_ACX100(adev)) {
27002+ mem_region1 = PCI_ACX100_REGION1;
27003+ mem_region2 = PCI_ACX100_REGION2;
27004+ } else {
27005+ mem_region1 = PCI_ACX111_REGION1;
27006+ mem_region2 = PCI_ACX111_REGION2;
27007+ }
27008+
27009+ /* finally, clean up PCI bus state */
27010+ acxpci_s_delete_dma_regions(adev);
27011+ if (adev->iobase) iounmap(adev->iobase);
27012+ if (adev->iobase2) iounmap(adev->iobase2);
27013+ release_mem_region(pci_resource_start(pdev, mem_region1),
27014+ pci_resource_len(pdev, mem_region1));
27015+ release_mem_region(pci_resource_start(pdev, mem_region2),
27016+ pci_resource_len(pdev, mem_region2));
27017+ pci_disable_device(pdev);
27018+
27019+ /* remove dev registration */
27020+ pci_set_drvdata(pdev, NULL);
27021+
27022+ acx_sem_unlock(adev);
27023+
27024+ /* Free netdev (quite late,
27025+ * since otherwise we might get caught off-guard
27026+ * by a netdev timeout handler execution
27027+ * expecting to see a working dev...) */
27028+ free_netdev(ndev);
27029+
27030+ /* put device into ACPI D3 mode (shutdown) */
27031+ pci_set_power_state(pdev, PCI_D3hot);
27032+
27033+end:
27034+ FN_EXIT0;
27035+}
27036+
27037+
27038+/***********************************************************************
27039+** TODO: PM code needs to be fixed / debugged / tested.
27040+*/
27041+#ifdef CONFIG_PM
27042+static int
27043+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
27044+acxpci_e_suspend(struct pci_dev *pdev, pm_message_t state)
27045+#else
27046+acxpci_e_suspend(struct pci_dev *pdev, u32 state)
27047+#endif
27048+{
27049+ struct net_device *ndev = pci_get_drvdata(pdev);
27050+ acx_device_t *adev;
27051+
27052+ FN_ENTER;
27053+ printk("acx: suspend handler is experimental!\n");
27054+ printk("sus: dev %p\n", ndev);
27055+
27056+ if (!netif_running(ndev))
27057+ goto end;
27058+
27059+ adev = ndev2adev(ndev);
27060+ printk("sus: adev %p\n", adev);
27061+
27062+ acx_sem_lock(adev);
27063+
27064+ netif_device_detach(ndev); /* this one cannot sleep */
27065+ acxpci_s_down(ndev);
27066+ /* down() does not set it to 0xffff, but here we really want that */
27067+ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff);
27068+ write_reg16(adev, IO_ACX_FEMR, 0x0);
27069+ acxpci_s_delete_dma_regions(adev);
27070+ pci_save_state(pdev);
27071+ pci_set_power_state(pdev, PCI_D3hot);
27072+
27073+ acx_sem_unlock(adev);
27074+end:
27075+ FN_EXIT0;
27076+ return OK;
27077+}
27078+
27079+
27080+static int
27081+acxpci_e_resume(struct pci_dev *pdev)
27082+{
27083+ struct net_device *ndev = pci_get_drvdata(pdev);
27084+ acx_device_t *adev;
27085+
27086+ FN_ENTER;
27087+
27088+ printk("acx: resume handler is experimental!\n");
27089+ printk("rsm: got dev %p\n", ndev);
27090+
27091+ if (!netif_running(ndev))
27092+ goto end;
27093+
27094+ adev = ndev2adev(ndev);
27095+ printk("rsm: got adev %p\n", adev);
27096+
27097+ acx_sem_lock(adev);
27098+
27099+ pci_set_power_state(pdev, PCI_D0);
27100+ printk("rsm: power state PCI_D0 set\n");
27101+ pci_restore_state(pdev);
27102+ printk("rsm: PCI state restored\n");
27103+
27104+ if (OK != acxpci_s_reset_dev(adev))
27105+ goto end_unlock;
27106+ printk("rsm: device reset done\n");
27107+ if (OK != acx_s_init_mac(adev))
27108+ goto end_unlock;
27109+ printk("rsm: init MAC done\n");
27110+
27111+ acxpci_s_up(ndev);
27112+ printk("rsm: acx up done\n");
27113+
27114+ /* now even reload all card parameters as they were before suspend,
27115+ * and possibly be back in the network again already :-) */
27116+ if (ACX_STATE_IFACE_UP & adev->dev_state_mask) {
27117+ adev->set_mask = GETSET_ALL;
27118+ acx_s_update_card_settings(adev);
27119+ printk("rsm: settings updated\n");
27120+ }
27121+ netif_device_attach(ndev);
27122+ printk("rsm: device attached\n");
27123+
27124+end_unlock:
27125+ acx_sem_unlock(adev);
27126+end:
27127+ /* we need to return OK here anyway, right? */
27128+ FN_EXIT0;
27129+ return OK;
27130+}
27131+#endif /* CONFIG_PM */
27132+
27133+
27134+/***********************************************************************
27135+** acxpci_s_up
27136+**
27137+** This function is called by acxpci_e_open (when ifconfig sets the device as up)
27138+**
27139+** Side effects:
27140+** - Enables on-card interrupt requests
27141+** - calls acx_s_start
27142+*/
27143+
27144+static void
27145+enable_acx_irq(acx_device_t *adev)
27146+{
27147+ FN_ENTER;
27148+ write_reg16(adev, IO_ACX_IRQ_MASK, adev->irq_mask);
27149+ write_reg16(adev, IO_ACX_FEMR, 0x8000);
27150+ adev->irqs_active = 1;
27151+ FN_EXIT0;
27152+}
27153+
27154+static void
27155+acxpci_s_up(struct net_device *ndev)
27156+{
27157+ acx_device_t *adev = ndev2adev(ndev);
27158+ unsigned long flags;
27159+
27160+ FN_ENTER;
27161+
27162+ acx_lock(adev, flags);
27163+ enable_acx_irq(adev);
27164+ acx_unlock(adev, flags);
27165+
27166+ /* acx fw < 1.9.3.e has a hardware timer, and older drivers
27167+ ** used to use it. But we don't do that anymore, our OS
27168+ ** has reliable software timers */
27169+ init_timer(&adev->mgmt_timer);
27170+ adev->mgmt_timer.function = acx_i_timer;
27171+ adev->mgmt_timer.data = (unsigned long)adev;
27172+
27173+ /* Need to set ACX_STATE_IFACE_UP first, or else
27174+ ** timer won't be started by acx_set_status() */
27175+ SET_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
27176+ switch (adev->mode) {
27177+ case ACX_MODE_0_ADHOC:
27178+ case ACX_MODE_2_STA:
27179+ /* actual scan cmd will happen in start() */
27180+ acx_set_status(adev, ACX_STATUS_1_SCANNING); break;
27181+ case ACX_MODE_3_AP:
27182+ case ACX_MODE_MONITOR:
27183+ acx_set_status(adev, ACX_STATUS_4_ASSOCIATED); break;
27184+ }
27185+
27186+ acx_s_start(adev);
27187+
27188+ FN_EXIT0;
27189+}
27190+
27191+
27192+/***********************************************************************
27193+** acxpci_s_down
27194+**
27195+** NB: device may be already hot unplugged if called from acxpci_e_remove()
27196+**
27197+** Disables on-card interrupt request, stops softirq and timer, stops queue,
27198+** sets status == STOPPED
27199+*/
27200+
27201+static void
27202+disable_acx_irq(acx_device_t *adev)
27203+{
27204+ FN_ENTER;
27205+
27206+ /* I guess mask is not 0xffff because acx100 won't signal
27207+ ** cmd completion then (needed for ifup).
27208+ ** Someone with acx100 please confirm */
27209+ write_reg16(adev, IO_ACX_IRQ_MASK, adev->irq_mask_off);
27210+ write_reg16(adev, IO_ACX_FEMR, 0x0);
27211+ adev->irqs_active = 0;
27212+ FN_EXIT0;
27213+}
27214+
27215+static void
27216+acxpci_s_down(struct net_device *ndev)
27217+{
27218+ acx_device_t *adev = ndev2adev(ndev);
27219+ unsigned long flags;
27220+
27221+ FN_ENTER;
27222+
27223+ /* Disable IRQs first, so that IRQs cannot race with us */
27224+ /* then wait until interrupts have finished executing on other CPUs */
27225+ acx_lock(adev, flags);
27226+ disable_acx_irq(adev);
27227+ synchronize_irq(adev->pdev->irq);
27228+ acx_unlock(adev, flags);
27229+
27230+ /* we really don't want to have an asynchronous tasklet disturb us
27231+ ** after something vital for its job has been shut down, so
27232+ ** end all remaining work now.
27233+ **
27234+ ** NB: carrier_off (done by set_status below) would lead to
27235+ ** not yet fully understood deadlock in FLUSH_SCHEDULED_WORK().
27236+ ** That's why we do FLUSH first.
27237+ **
27238+ ** NB2: we have a bad locking bug here: FLUSH_SCHEDULED_WORK()
27239+ ** waits for acx_e_after_interrupt_task to complete if it is running
27240+ ** on another CPU, but acx_e_after_interrupt_task
27241+ ** will sleep on sem forever, because it is taken by us!
27242+ ** Work around that by temporary sem unlock.
27243+ ** This will fail miserably if we'll be hit by concurrent
27244+ ** iwconfig or something in between. TODO! */
27245+ acx_sem_unlock(adev);
27246+ FLUSH_SCHEDULED_WORK();
27247+ acx_sem_lock(adev);
27248+
27249+ /* This is possible:
27250+ ** FLUSH_SCHEDULED_WORK -> acx_e_after_interrupt_task ->
27251+ ** -> set_status(ASSOCIATED) -> wake_queue()
27252+ ** That's why we stop queue _after_ FLUSH_SCHEDULED_WORK
27253+ ** lock/unlock is just paranoia, maybe not needed */
27254+ acx_lock(adev, flags);
27255+ acx_stop_queue(ndev, "on ifdown");
27256+ acx_set_status(adev, ACX_STATUS_0_STOPPED);
27257+ acx_unlock(adev, flags);
27258+
27259+ /* kernel/timer.c says it's illegal to del_timer_sync()
27260+ ** a timer which restarts itself. We guarantee this cannot
27261+ ** ever happen because acx_i_timer() never does this if
27262+ ** status is ACX_STATUS_0_STOPPED */
27263+ del_timer_sync(&adev->mgmt_timer);
27264+
27265+ FN_EXIT0;
27266+}
27267+
27268+
27269+/***********************************************************************
27270+** acxpci_e_open
27271+**
27272+** Called as a result of SIOCSIFFLAGS ioctl changing the flags bit IFF_UP
27273+** from clear to set. In other words: ifconfig up.
27274+**
27275+** Returns:
27276+** 0 success
27277+** >0 f/w reported error
27278+** <0 driver reported error
27279+*/
27280+static int
27281+acxpci_e_open(struct net_device *ndev)
27282+{
27283+ acx_device_t *adev = ndev2adev(ndev);
27284+ int result = OK;
27285+
27286+ FN_ENTER;
27287+
27288+ acx_sem_lock(adev);
27289+
27290+ acx_init_task_scheduler(adev);
27291+
27292+/* TODO: pci_set_power_state(pdev, PCI_D0); ? */
27293+
27294+ /* request shared IRQ handler */
27295+ if (request_irq(ndev->irq, acxpci_i_interrupt, SA_SHIRQ, ndev->name, ndev)) {
27296+ printk("%s: request_irq FAILED\n", ndev->name);
27297+ result = -EAGAIN;
27298+ goto done;
27299+ }
27300+ log(L_DEBUG|L_IRQ, "request_irq %d successful\n", ndev->irq);
27301+
27302+ /* ifup device */
27303+ acxpci_s_up(ndev);
27304+
27305+ /* We don't currently have to do anything else.
27306+ * The setup of the MAC should be subsequently completed via
27307+ * the mlme commands.
27308+ * Higher layers know we're ready from dev->start==1 and
27309+ * dev->tbusy==0. Our rx path knows to pass up received/
27310+ * frames because of dev->flags&IFF_UP is true.
27311+ */
27312+done:
27313+ acx_sem_unlock(adev);
27314+
27315+ FN_EXIT1(result);
27316+ return result;
27317+}
27318+
27319+
27320+/***********************************************************************
27321+** acxpci_e_close
27322+**
27323+** Called as a result of SIOCSIIFFLAGS ioctl changing the flags bit IFF_UP
27324+** from set to clear. I.e. called by "ifconfig DEV down"
27325+**
27326+** Returns:
27327+** 0 success
27328+** >0 f/w reported error
27329+** <0 driver reported error
27330+*/
27331+static int
27332+acxpci_e_close(struct net_device *ndev)
27333+{
27334+ acx_device_t *adev = ndev2adev(ndev);
27335+
27336+ FN_ENTER;
27337+
27338+ acx_sem_lock(adev);
27339+
27340+ /* ifdown device */
27341+ CLEAR_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
27342+ if (netif_device_present(ndev)) {
27343+ acxpci_s_down(ndev);
27344+ }
27345+
27346+ /* disable all IRQs, release shared IRQ handler */
27347+ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff);
27348+ write_reg16(adev, IO_ACX_FEMR, 0x0);
27349+ free_irq(ndev->irq, ndev);
27350+
27351+/* TODO: pci_set_power_state(pdev, PCI_D3hot); ? */
27352+
27353+ /* We currently don't have to do anything else.
27354+ * Higher layers know we're not ready from dev->start==0 and
27355+ * dev->tbusy==1. Our rx path knows to not pass up received
27356+ * frames because of dev->flags&IFF_UP is false.
27357+ */
27358+ acx_sem_unlock(adev);
27359+
27360+ log(L_INIT, "closed device\n");
27361+ FN_EXIT0;
27362+ return OK;
27363+}
27364+
27365+
27366+/***********************************************************************
27367+** acxpci_i_tx_timeout
27368+**
27369+** Called from network core. Must not sleep!
27370+*/
27371+static void
27372+acxpci_i_tx_timeout(struct net_device *ndev)
27373+{
27374+ acx_device_t *adev = ndev2adev(ndev);
27375+ unsigned long flags;
27376+ unsigned int tx_num_cleaned;
27377+
27378+ FN_ENTER;
27379+
27380+ acx_lock(adev, flags);
27381+
27382+ /* clean processed tx descs, they may have been completely full */
27383+ tx_num_cleaned = acxpci_l_clean_txdesc(adev);
27384+
27385+ /* nothing cleaned, yet (almost) no free buffers available?
27386+ * --> clean all tx descs, no matter which status!!
27387+ * Note that I strongly suspect that doing emergency cleaning
27388+ * may confuse the firmware. This is a last ditch effort to get
27389+ * ANYTHING to work again...
27390+ *
27391+ * TODO: it's best to simply reset & reinit hw from scratch...
27392+ */
27393+ if ((adev->tx_free <= TX_EMERG_CLEAN) && (tx_num_cleaned == 0)) {
27394+ printk("%s: FAILED to free any of the many full tx buffers. "
27395+ "Switching to emergency freeing. "
27396+ "Please report!\n", ndev->name);
27397+ acxpci_l_clean_txdesc_emergency(adev);
27398+ }
27399+
27400+ if (acx_queue_stopped(ndev) && (ACX_STATUS_4_ASSOCIATED == adev->status))
27401+ acx_wake_queue(ndev, "after tx timeout");
27402+
27403+ /* stall may have happened due to radio drift, so recalib radio */
27404+ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_RADIO_RECALIB);
27405+
27406+ /* do unimportant work last */
27407+ printk("%s: tx timeout!\n", ndev->name);
27408+ adev->stats.tx_errors++;
27409+
27410+ acx_unlock(adev, flags);
27411+
27412+ FN_EXIT0;
27413+}
27414+
27415+
27416+/***********************************************************************
27417+** acxpci_i_set_multicast_list
27418+** FIXME: most likely needs refinement
27419+*/
27420+static void
27421+acxpci_i_set_multicast_list(struct net_device *ndev)
27422+{
27423+ acx_device_t *adev = ndev2adev(ndev);
27424+ unsigned long flags;
27425+
27426+ FN_ENTER;
27427+
27428+ acx_lock(adev, flags);
27429+
27430+ /* firmwares don't have allmulti capability,
27431+ * so just use promiscuous mode instead in this case. */
27432+ if (ndev->flags & (IFF_PROMISC|IFF_ALLMULTI)) {
27433+ SET_BIT(adev->rx_config_1, RX_CFG1_RCV_PROMISCUOUS);
27434+ CLEAR_BIT(adev->rx_config_1, RX_CFG1_FILTER_ALL_MULTI);
27435+ SET_BIT(adev->set_mask, SET_RXCONFIG);
27436+ /* let kernel know in case *we* needed to set promiscuous */
27437+ ndev->flags |= (IFF_PROMISC|IFF_ALLMULTI);
27438+ } else {
27439+ CLEAR_BIT(adev->rx_config_1, RX_CFG1_RCV_PROMISCUOUS);
27440+ SET_BIT(adev->rx_config_1, RX_CFG1_FILTER_ALL_MULTI);
27441+ SET_BIT(adev->set_mask, SET_RXCONFIG);
27442+ ndev->flags &= ~(IFF_PROMISC|IFF_ALLMULTI);
27443+ }
27444+
27445+ /* cannot update card settings directly here, atomic context */
27446+ acx_schedule_task(adev, ACX_AFTER_IRQ_UPDATE_CARD_CFG);
27447+
27448+ acx_unlock(adev, flags);
27449+
27450+ FN_EXIT0;
27451+}
27452+
27453+
27454+/***************************************************************
27455+** acxpci_l_process_rxdesc
27456+**
27457+** Called directly and only from the IRQ handler
27458+*/
27459+
27460+#if !ACX_DEBUG
27461+static inline void log_rxbuffer(const acx_device_t *adev) {}
27462+#else
27463+static void
27464+log_rxbuffer(const acx_device_t *adev)
27465+{
27466+ register const struct rxhostdesc *rxhostdesc;
27467+ int i;
27468+ /* no FN_ENTER here, we don't want that */
27469+
27470+ rxhostdesc = adev->rxhostdesc_start;
27471+ if (unlikely(!rxhostdesc)) return;
27472+ for (i = 0; i < RX_CNT; i++) {
27473+ if ((rxhostdesc->Ctl_16 & cpu_to_le16(DESC_CTL_HOSTOWN))
27474+ && (rxhostdesc->Status & cpu_to_le32(DESC_STATUS_FULL)))
27475+ printk("rx: buf %d full\n", i);
27476+ rxhostdesc++;
27477+ }
27478+}
27479+#endif
27480+
27481+static void
27482+acxpci_l_process_rxdesc(acx_device_t *adev)
27483+{
27484+ register rxhostdesc_t *hostdesc;
27485+ unsigned count, tail;
27486+
27487+ FN_ENTER;
27488+
27489+ if (unlikely(acx_debug & L_BUFR))
27490+ log_rxbuffer(adev);
27491+
27492+ /* First, have a loop to determine the first descriptor that's
27493+ * full, just in case there's a mismatch between our current
27494+ * rx_tail and the full descriptor we're supposed to handle. */
27495+ tail = adev->rx_tail;
27496+ count = RX_CNT;
27497+ while (1) {
27498+ hostdesc = &adev->rxhostdesc_start[tail];
27499+ /* advance tail regardless of outcome of the below test */
27500+ tail = (tail + 1) % RX_CNT;
27501+
27502+ if ((hostdesc->Ctl_16 & cpu_to_le16(DESC_CTL_HOSTOWN))
27503+ && (hostdesc->Status & cpu_to_le32(DESC_STATUS_FULL)))
27504+ break; /* found it! */
27505+
27506+ if (unlikely(!--count)) /* hmm, no luck: all descs empty, bail out */
27507+ goto end;
27508+ }
27509+
27510+ /* now process descriptors, starting with the first we figured out */
27511+ while (1) {
27512+ log(L_BUFR, "rx: tail=%u Ctl_16=%04X Status=%08X\n",
27513+ tail, hostdesc->Ctl_16, hostdesc->Status);
27514+
27515+ acx_l_process_rxbuf(adev, hostdesc->data);
27516+
27517+ hostdesc->Status = 0;
27518+ /* flush all writes before adapter sees CTL_HOSTOWN change */
27519+ wmb();
27520+ /* Host no longer owns this, needs to be LAST */
27521+ CLEAR_BIT(hostdesc->Ctl_16, cpu_to_le16(DESC_CTL_HOSTOWN));
27522+
27523+ /* ok, descriptor is handled, now check the next descriptor */
27524+ hostdesc = &adev->rxhostdesc_start[tail];
27525+
27526+ /* if next descriptor is empty, then bail out */
27527+ if (!(hostdesc->Ctl_16 & cpu_to_le16(DESC_CTL_HOSTOWN))
27528+ || !(hostdesc->Status & cpu_to_le32(DESC_STATUS_FULL)))
27529+ break;
27530+
27531+ tail = (tail + 1) % RX_CNT;
27532+ }
27533+end:
27534+ adev->rx_tail = tail;
27535+ FN_EXIT0;
27536+}
27537+
27538+
27539+/***********************************************************************
27540+** acxpci_i_interrupt
27541+**
27542+** IRQ handler (atomic context, must not sleep, blah, blah)
27543+*/
27544+
27545+/* scan is complete. all frames now on the receive queue are valid */
27546+#define INFO_SCAN_COMPLETE 0x0001
27547+#define INFO_WEP_KEY_NOT_FOUND 0x0002
27548+/* hw has been reset as the result of a watchdog timer timeout */
27549+#define INFO_WATCH_DOG_RESET 0x0003
27550+/* failed to send out NULL frame from PS mode notification to AP */
27551+/* recommended action: try entering 802.11 PS mode again */
27552+#define INFO_PS_FAIL 0x0004
27553+/* encryption/decryption process on a packet failed */
27554+#define INFO_IV_ICV_FAILURE 0x0005
27555+
27556+/* Info mailbox format:
27557+2 bytes: type
27558+2 bytes: status
27559+more bytes may follow
27560+ rumors say about status:
27561+ 0x0000 info available (set by hw)
27562+ 0x0001 information received (must be set by host)
27563+ 0x1000 info available, mailbox overflowed (messages lost) (set by hw)
27564+ but in practice we've seen:
27565+ 0x9000 when we did not set status to 0x0001 on prev message
27566+ 0x1001 when we did set it
27567+ 0x0000 was never seen
27568+ conclusion: this is really a bitfield:
27569+ 0x1000 is 'info available' bit
27570+ 'mailbox overflowed' bit is 0x8000, not 0x1000
27571+ value of 0x0000 probably means that there are no messages at all
27572+ P.S. I dunno how in hell hw is supposed to notice that messages are lost -
27573+ it does NOT clear bit 0x0001, and this bit will probably stay forever set
27574+ after we set it once. Let's hope this will be fixed in firmware someday
27575+*/
27576+
27577+static void
27578+handle_info_irq(acx_device_t *adev)
27579+{
27580+#if ACX_DEBUG
27581+ static const char * const info_type_msg[] = {
27582+ "(unknown)",
27583+ "scan complete",
27584+ "WEP key not found",
27585+ "internal watchdog reset was done",
27586+ "failed to send powersave (NULL frame) notification to AP",
27587+ "encrypt/decrypt on a packet has failed",
27588+ "TKIP tx keys disabled",
27589+ "TKIP rx keys disabled",
27590+ "TKIP rx: key ID not found",
27591+ "???",
27592+ "???",
27593+ "???",
27594+ "???",
27595+ "???",
27596+ "???",
27597+ "???",
27598+ "TKIP IV value exceeds thresh"
27599+ };
27600+#endif
27601+ u32 info_type, info_status;
27602+
27603+ info_type = readl(adev->info_area);
27604+ info_status = (info_type >> 16);
27605+ info_type = (u16)info_type;
27606+
27607+ /* inform fw that we have read this info message */
27608+ writel(info_type | 0x00010000, adev->info_area);
27609+ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_INFOACK);
27610+ write_flush(adev);
27611+
27612+ log(L_CTL, "info_type:%04X info_status:%04X\n",
27613+ info_type, info_status);
27614+
27615+ log(L_IRQ, "got Info IRQ: status %04X type %04X: %s\n",
27616+ info_status, info_type,
27617+ info_type_msg[(info_type >= VEC_SIZE(info_type_msg)) ?
27618+ 0 : info_type]
27619+ );
27620+}
27621+
27622+
27623+static void
27624+log_unusual_irq(u16 irqtype) {
27625+ /*
27626+ if (!printk_ratelimit())
27627+ return;
27628+ */
27629+
27630+ printk("acx: got");
27631+ if (irqtype & HOST_INT_RX_DATA) {
27632+ printk(" Rx_Data");
27633+ }
27634+ /* HOST_INT_TX_COMPLETE */
27635+ if (irqtype & HOST_INT_TX_XFER) {
27636+ printk(" Tx_Xfer");
27637+ }
27638+ /* HOST_INT_RX_COMPLETE */
27639+ if (irqtype & HOST_INT_DTIM) {
27640+ printk(" DTIM");
27641+ }
27642+ if (irqtype & HOST_INT_BEACON) {
27643+ printk(" Beacon");
27644+ }
27645+ if (irqtype & HOST_INT_TIMER) {
27646+ log(L_IRQ, " Timer");
27647+ }
27648+ if (irqtype & HOST_INT_KEY_NOT_FOUND) {
27649+ printk(" Key_Not_Found");
27650+ }
27651+ if (irqtype & HOST_INT_IV_ICV_FAILURE) {
27652+ printk(" IV_ICV_Failure (crypto)");
27653+ }
27654+ /* HOST_INT_CMD_COMPLETE */
27655+ /* HOST_INT_INFO */
27656+ if (irqtype & HOST_INT_OVERFLOW) {
27657+ printk(" Overflow");
27658+ }
27659+ if (irqtype & HOST_INT_PROCESS_ERROR) {
27660+ printk(" Process_Error");
27661+ }
27662+ /* HOST_INT_SCAN_COMPLETE */
27663+ if (irqtype & HOST_INT_FCS_THRESHOLD) {
27664+ printk(" FCS_Threshold");
27665+ }
27666+ if (irqtype & HOST_INT_UNKNOWN) {
27667+ printk(" Unknown");
27668+ }
27669+ printk(" IRQ(s)\n");
27670+}
27671+
27672+
27673+static void
27674+update_link_quality_led(acx_device_t *adev)
27675+{
27676+ int qual;
27677+
27678+ qual = acx_signal_determine_quality(adev->wstats.qual.level, adev->wstats.qual.noise);
27679+ if (qual > adev->brange_max_quality)
27680+ qual = adev->brange_max_quality;
27681+
27682+ if (time_after(jiffies, adev->brange_time_last_state_change +
27683+ (HZ/2 - HZ/2 * (unsigned long)qual / adev->brange_max_quality ) )) {
27684+ acxpci_l_power_led(adev, (adev->brange_last_state == 0));
27685+ adev->brange_last_state ^= 1; /* toggle */
27686+ adev->brange_time_last_state_change = jiffies;
27687+ }
27688+}
27689+
27690+
27691+#define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* a la orinoco.c */
27692+
27693+static irqreturn_t
27694+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
27695+acxpci_i_interrupt(int irq, void *dev_id)
27696+#else
27697+acxpci_i_interrupt(int irq, void *dev_id, struct pt_regs *regs)
27698+#endif
27699+{
27700+ acx_device_t *adev;
27701+ unsigned long flags;
27702+ unsigned int irqcount = MAX_IRQLOOPS_PER_JIFFY;
27703+ register u16 irqtype;
27704+ u16 unmasked;
27705+
27706+ adev = ndev2adev((struct net_device*)dev_id);
27707+
27708+ /* LOCKING: can just spin_lock() since IRQs are disabled anyway.
27709+ * I am paranoid */
27710+ acx_lock(adev, flags);
27711+
27712+ unmasked = read_reg16(adev, IO_ACX_IRQ_STATUS_CLEAR);
27713+ if (unlikely(0xffff == unmasked)) {
27714+ /* 0xffff value hints at missing hardware,
27715+ * so don't do anything.
27716+ * Not very clean, but other drivers do the same... */
27717+ log(L_IRQ, "IRQ type:FFFF - device removed? IRQ_NONE\n");
27718+ goto none;
27719+ }
27720+
27721+ /* We will check only "interesting" IRQ types */
27722+ irqtype = unmasked & ~adev->irq_mask;
27723+ if (!irqtype) {
27724+ /* We are on a shared IRQ line and it wasn't our IRQ */
27725+ log(L_IRQ, "IRQ type:%04X, mask:%04X - all are masked, IRQ_NONE\n",
27726+ unmasked, adev->irq_mask);
27727+ goto none;
27728+ }
27729+
27730+ /* Done here because IRQ_NONEs taking three lines of log
27731+ ** drive me crazy */
27732+ FN_ENTER;
27733+
27734+#define IRQ_ITERATE 1
27735+#if IRQ_ITERATE
27736+if (jiffies != adev->irq_last_jiffies) {
27737+ adev->irq_loops_this_jiffy = 0;
27738+ adev->irq_last_jiffies = jiffies;
27739+}
27740+
27741+/* safety condition; we'll normally abort loop below
27742+ * in case no IRQ type occurred */
27743+while (likely(--irqcount)) {
27744+#endif
27745+ /* ACK all IRQs ASAP */
27746+ write_reg16(adev, IO_ACX_IRQ_ACK, 0xffff);
27747+
27748+ log(L_IRQ, "IRQ type:%04X, mask:%04X, type & ~mask:%04X\n",
27749+ unmasked, adev->irq_mask, irqtype);
27750+
27751+ /* Handle most important IRQ types first */
27752+ if (irqtype & HOST_INT_RX_COMPLETE) {
27753+ log(L_IRQ, "got Rx_Complete IRQ\n");
27754+ acxpci_l_process_rxdesc(adev);
27755+ }
27756+ if (irqtype & HOST_INT_TX_COMPLETE) {
27757+ log(L_IRQ, "got Tx_Complete IRQ\n");
27758+ /* don't clean up on each Tx complete, wait a bit
27759+ * unless we're going towards full, in which case
27760+ * we do it immediately, too (otherwise we might lockup
27761+ * with a full Tx buffer if we go into
27762+ * acxpci_l_clean_txdesc() at a time when we won't wakeup
27763+ * the net queue in there for some reason...) */
27764+ if (adev->tx_free <= TX_START_CLEAN) {
27765+#if TX_CLEANUP_IN_SOFTIRQ
27766+ acx_schedule_task(adev, ACX_AFTER_IRQ_TX_CLEANUP);
27767+#else
27768+ acxpci_l_clean_txdesc(adev);
27769+#endif
27770+ }
27771+ }
27772+
27773+ /* Less frequent ones */
27774+ if (irqtype & (0
27775+ | HOST_INT_CMD_COMPLETE
27776+ | HOST_INT_INFO
27777+ | HOST_INT_SCAN_COMPLETE
27778+ )) {
27779+ if (irqtype & HOST_INT_CMD_COMPLETE) {
27780+ log(L_IRQ, "got Command_Complete IRQ\n");
27781+ /* save the state for the running issue_cmd() */
27782+ SET_BIT(adev->irq_status, HOST_INT_CMD_COMPLETE);
27783+ }
27784+ if (irqtype & HOST_INT_INFO) {
27785+ handle_info_irq(adev);
27786+ }
27787+ if (irqtype & HOST_INT_SCAN_COMPLETE) {
27788+ log(L_IRQ, "got Scan_Complete IRQ\n");
27789+ /* need to do that in process context */
27790+ acx_schedule_task(adev, ACX_AFTER_IRQ_COMPLETE_SCAN);
27791+ /* remember that fw is not scanning anymore */
27792+ SET_BIT(adev->irq_status, HOST_INT_SCAN_COMPLETE);
27793+ }
27794+ }
27795+
27796+ /* These we just log, but either they happen rarely
27797+ * or we keep them masked out */
27798+ if (irqtype & (0
27799+ | HOST_INT_RX_DATA
27800+ /* | HOST_INT_TX_COMPLETE */
27801+ | HOST_INT_TX_XFER
27802+ /* | HOST_INT_RX_COMPLETE */
27803+ | HOST_INT_DTIM
27804+ | HOST_INT_BEACON
27805+ | HOST_INT_TIMER
27806+ | HOST_INT_KEY_NOT_FOUND
27807+ | HOST_INT_IV_ICV_FAILURE
27808+ /* | HOST_INT_CMD_COMPLETE */
27809+ /* | HOST_INT_INFO */
27810+ | HOST_INT_OVERFLOW
27811+ | HOST_INT_PROCESS_ERROR
27812+ /* | HOST_INT_SCAN_COMPLETE */
27813+ | HOST_INT_FCS_THRESHOLD
27814+ | HOST_INT_UNKNOWN
27815+ )) {
27816+ log_unusual_irq(irqtype);
27817+ }
27818+
27819+#if IRQ_ITERATE
27820+ unmasked = read_reg16(adev, IO_ACX_IRQ_STATUS_CLEAR);
27821+ irqtype = unmasked & ~adev->irq_mask;
27822+ /* Bail out if no new IRQ bits or if all are masked out */
27823+ if (!irqtype)
27824+ break;
27825+
27826+ if (unlikely(++adev->irq_loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY)) {
27827+ printk(KERN_ERR "acx: too many interrupts per jiffy!\n");
27828+ /* Looks like card floods us with IRQs! Try to stop that */
27829+ write_reg16(adev, IO_ACX_IRQ_MASK, 0xffff);
27830+ /* This will short-circuit all future attempts to handle IRQ.
27831+ * We cant do much more... */
27832+ adev->irq_mask = 0;
27833+ break;
27834+ }
27835+}
27836+#endif
27837+ /* Routine to perform blink with range */
27838+ if (unlikely(adev->led_power == 2))
27839+ update_link_quality_led(adev);
27840+
27841+/* handled: */
27842+ /* write_flush(adev); - not needed, last op was read anyway */
27843+ acx_unlock(adev, flags);
27844+ FN_EXIT0;
27845+ return IRQ_HANDLED;
27846+
27847+none:
27848+ acx_unlock(adev, flags);
27849+ return IRQ_NONE;
27850+}
27851+
27852+
27853+/***********************************************************************
27854+** acxpci_l_power_led
27855+*/
27856+void
27857+acxpci_l_power_led(acx_device_t *adev, int enable)
27858+{
27859+ u16 gpio_pled = IS_ACX111(adev) ? 0x0040 : 0x0800;
27860+
27861+ /* A hack. Not moving message rate limiting to adev->xxx
27862+ * (it's only a debug message after all) */
27863+ static int rate_limit = 0;
27864+
27865+ if (rate_limit++ < 3)
27866+ log(L_IOCTL, "Please report in case toggling the power "
27867+ "LED doesn't work for your card!\n");
27868+ if (enable)
27869+ write_reg16(adev, IO_ACX_GPIO_OUT,
27870+ read_reg16(adev, IO_ACX_GPIO_OUT) & ~gpio_pled);
27871+ else
27872+ write_reg16(adev, IO_ACX_GPIO_OUT,
27873+ read_reg16(adev, IO_ACX_GPIO_OUT) | gpio_pled);
27874+}
27875+
27876+
27877+/***********************************************************************
27878+** Ioctls
27879+*/
27880+
27881+/***********************************************************************
27882+*/
27883+int
27884+acx111pci_ioctl_info(
27885+ struct net_device *ndev,
27886+ struct iw_request_info *info,
27887+ struct iw_param *vwrq,
27888+ char *extra)
27889+{
27890+#if ACX_DEBUG > 1
27891+ acx_device_t *adev = ndev2adev(ndev);
27892+ rxdesc_t *rxdesc;
27893+ txdesc_t *txdesc;
27894+ rxhostdesc_t *rxhostdesc;
27895+ txhostdesc_t *txhostdesc;
27896+ struct acx111_ie_memoryconfig memconf;
27897+ struct acx111_ie_queueconfig queueconf;
27898+ unsigned long flags;
27899+ int i;
27900+ char memmap[0x34];
27901+ char rxconfig[0x8];
27902+ char fcserror[0x8];
27903+ char ratefallback[0x5];
27904+
27905+ if ( !(acx_debug & (L_IOCTL|L_DEBUG)) )
27906+ return OK;
27907+ /* using printk() since we checked debug flag already */
27908+
27909+ acx_sem_lock(adev);
27910+
27911+ if (!IS_ACX111(adev)) {
27912+ printk("acx111-specific function called "
27913+ "with non-acx111 chip, aborting\n");
27914+ goto end_ok;
27915+ }
27916+
27917+ /* get Acx111 Memory Configuration */
27918+ memset(&memconf, 0, sizeof(memconf));
27919+ /* BTW, fails with 12 (Write only) error code.
27920+ ** Retained for easy testing of issue_cmd error handling :) */
27921+ acx_s_interrogate(adev, &memconf, ACX1xx_IE_QUEUE_CONFIG);
27922+
27923+ /* get Acx111 Queue Configuration */
27924+ memset(&queueconf, 0, sizeof(queueconf));
27925+ acx_s_interrogate(adev, &queueconf, ACX1xx_IE_MEMORY_CONFIG_OPTIONS);
27926+
27927+ /* get Acx111 Memory Map */
27928+ memset(memmap, 0, sizeof(memmap));
27929+ acx_s_interrogate(adev, &memmap, ACX1xx_IE_MEMORY_MAP);
27930+
27931+ /* get Acx111 Rx Config */
27932+ memset(rxconfig, 0, sizeof(rxconfig));
27933+ acx_s_interrogate(adev, &rxconfig, ACX1xx_IE_RXCONFIG);
27934+
27935+ /* get Acx111 fcs error count */
27936+ memset(fcserror, 0, sizeof(fcserror));
27937+ acx_s_interrogate(adev, &fcserror, ACX1xx_IE_FCS_ERROR_COUNT);
27938+
27939+ /* get Acx111 rate fallback */
27940+ memset(ratefallback, 0, sizeof(ratefallback));
27941+ acx_s_interrogate(adev, &ratefallback, ACX1xx_IE_RATE_FALLBACK);
27942+
27943+ /* force occurrence of a beacon interrupt */
27944+ /* TODO: comment why is this necessary */
27945+ write_reg16(adev, IO_ACX_HINT_TRIG, HOST_INT_BEACON);
27946+
27947+ /* dump Acx111 Mem Configuration */
27948+ printk("dump mem config:\n"
27949+ "data read: %d, struct size: %d\n"
27950+ "Number of stations: %1X\n"
27951+ "Memory block size: %1X\n"
27952+ "tx/rx memory block allocation: %1X\n"
27953+ "count rx: %X / tx: %X queues\n"
27954+ "options %1X\n"
27955+ "fragmentation %1X\n"
27956+ "Rx Queue 1 Count Descriptors: %X\n"
27957+ "Rx Queue 1 Host Memory Start: %X\n"
27958+ "Tx Queue 1 Count Descriptors: %X\n"
27959+ "Tx Queue 1 Attributes: %X\n",
27960+ memconf.len, (int) sizeof(memconf),
27961+ memconf.no_of_stations,
27962+ memconf.memory_block_size,
27963+ memconf.tx_rx_memory_block_allocation,
27964+ memconf.count_rx_queues, memconf.count_tx_queues,
27965+ memconf.options,
27966+ memconf.fragmentation,
27967+ memconf.rx_queue1_count_descs,
27968+ acx2cpu(memconf.rx_queue1_host_rx_start),
27969+ memconf.tx_queue1_count_descs,
27970+ memconf.tx_queue1_attributes);
27971+
27972+ /* dump Acx111 Queue Configuration */
27973+ printk("dump queue head:\n"
27974+ "data read: %d, struct size: %d\n"
27975+ "tx_memory_block_address (from card): %X\n"
27976+ "rx_memory_block_address (from card): %X\n"
27977+ "rx1_queue address (from card): %X\n"
27978+ "tx1_queue address (from card): %X\n"
27979+ "tx1_queue attributes (from card): %X\n",
27980+ queueconf.len, (int) sizeof(queueconf),
27981+ queueconf.tx_memory_block_address,
27982+ queueconf.rx_memory_block_address,
27983+ queueconf.rx1_queue_address,
27984+ queueconf.tx1_queue_address,
27985+ queueconf.tx1_attributes);
27986+
27987+ /* dump Acx111 Mem Map */
27988+ printk("dump mem map:\n"
27989+ "data read: %d, struct size: %d\n"
27990+ "Code start: %X\n"
27991+ "Code end: %X\n"
27992+ "WEP default key start: %X\n"
27993+ "WEP default key end: %X\n"
27994+ "STA table start: %X\n"
27995+ "STA table end: %X\n"
27996+ "Packet template start: %X\n"
27997+ "Packet template end: %X\n"
27998+ "Queue memory start: %X\n"
27999+ "Queue memory end: %X\n"
28000+ "Packet memory pool start: %X\n"
28001+ "Packet memory pool end: %X\n"
28002+ "iobase: %p\n"
28003+ "iobase2: %p\n",
28004+ *((u16 *)&memmap[0x02]), (int) sizeof(memmap),
28005+ *((u32 *)&memmap[0x04]),
28006+ *((u32 *)&memmap[0x08]),
28007+ *((u32 *)&memmap[0x0C]),
28008+ *((u32 *)&memmap[0x10]),
28009+ *((u32 *)&memmap[0x14]),
28010+ *((u32 *)&memmap[0x18]),
28011+ *((u32 *)&memmap[0x1C]),
28012+ *((u32 *)&memmap[0x20]),
28013+ *((u32 *)&memmap[0x24]),
28014+ *((u32 *)&memmap[0x28]),
28015+ *((u32 *)&memmap[0x2C]),
28016+ *((u32 *)&memmap[0x30]),
28017+ adev->iobase,
28018+ adev->iobase2);
28019+
28020+ /* dump Acx111 Rx Config */
28021+ printk("dump rx config:\n"
28022+ "data read: %d, struct size: %d\n"
28023+ "rx config: %X\n"
28024+ "rx filter config: %X\n",
28025+ *((u16 *)&rxconfig[0x02]), (int) sizeof(rxconfig),
28026+ *((u16 *)&rxconfig[0x04]),
28027+ *((u16 *)&rxconfig[0x06]));
28028+
28029+ /* dump Acx111 fcs error */
28030+ printk("dump fcserror:\n"
28031+ "data read: %d, struct size: %d\n"
28032+ "fcserrors: %X\n",
28033+ *((u16 *)&fcserror[0x02]), (int) sizeof(fcserror),
28034+ *((u32 *)&fcserror[0x04]));
28035+
28036+ /* dump Acx111 rate fallback */
28037+ printk("dump rate fallback:\n"
28038+ "data read: %d, struct size: %d\n"
28039+ "ratefallback: %X\n",
28040+ *((u16 *)&ratefallback[0x02]), (int) sizeof(ratefallback),
28041+ *((u8 *)&ratefallback[0x04]));
28042+
28043+ /* protect against IRQ */
28044+ acx_lock(adev, flags);
28045+
28046+ /* dump acx111 internal rx descriptor ring buffer */
28047+ rxdesc = adev->rxdesc_start;
28048+
28049+ /* loop over complete receive pool */
28050+ if (rxdesc) for (i = 0; i < RX_CNT; i++) {
28051+ printk("\ndump internal rxdesc %d:\n"
28052+ "mem pos %p\n"
28053+ "next 0x%X\n"
28054+ "acx mem pointer (dynamic) 0x%X\n"
28055+ "CTL (dynamic) 0x%X\n"
28056+ "Rate (dynamic) 0x%X\n"
28057+ "RxStatus (dynamic) 0x%X\n"
28058+ "Mod/Pre (dynamic) 0x%X\n",
28059+ i,
28060+ rxdesc,
28061+ acx2cpu(rxdesc->pNextDesc),
28062+ acx2cpu(rxdesc->ACXMemPtr),
28063+ rxdesc->Ctl_8,
28064+ rxdesc->rate,
28065+ rxdesc->error,
28066+ rxdesc->SNR);
28067+ rxdesc++;
28068+ }
28069+
28070+ /* dump host rx descriptor ring buffer */
28071+
28072+ rxhostdesc = adev->rxhostdesc_start;
28073+
28074+ /* loop over complete receive pool */
28075+ if (rxhostdesc) for (i = 0; i < RX_CNT; i++) {
28076+ printk("\ndump host rxdesc %d:\n"
28077+ "mem pos %p\n"
28078+ "buffer mem pos 0x%X\n"
28079+ "buffer mem offset 0x%X\n"
28080+ "CTL 0x%X\n"
28081+ "Length 0x%X\n"
28082+ "next 0x%X\n"
28083+ "Status 0x%X\n",
28084+ i,
28085+ rxhostdesc,
28086+ acx2cpu(rxhostdesc->data_phy),
28087+ rxhostdesc->data_offset,
28088+ le16_to_cpu(rxhostdesc->Ctl_16),
28089+ le16_to_cpu(rxhostdesc->length),
28090+ acx2cpu(rxhostdesc->desc_phy_next),
28091+ rxhostdesc->Status);
28092+ rxhostdesc++;
28093+ }
28094+
28095+ /* dump acx111 internal tx descriptor ring buffer */
28096+ txdesc = adev->txdesc_start;
28097+
28098+ /* loop over complete transmit pool */
28099+ if (txdesc) for (i = 0; i < TX_CNT; i++) {
28100+ printk("\ndump internal txdesc %d:\n"
28101+ "size 0x%X\n"
28102+ "mem pos %p\n"
28103+ "next 0x%X\n"
28104+ "acx mem pointer (dynamic) 0x%X\n"
28105+ "host mem pointer (dynamic) 0x%X\n"
28106+ "length (dynamic) 0x%X\n"
28107+ "CTL (dynamic) 0x%X\n"
28108+ "CTL2 (dynamic) 0x%X\n"
28109+ "Status (dynamic) 0x%X\n"
28110+ "Rate (dynamic) 0x%X\n",
28111+ i,
28112+ (int) sizeof(struct txdesc),
28113+ txdesc,
28114+ acx2cpu(txdesc->pNextDesc),
28115+ acx2cpu(txdesc->AcxMemPtr),
28116+ acx2cpu(txdesc->HostMemPtr),
28117+ le16_to_cpu(txdesc->total_length),
28118+ txdesc->Ctl_8,
28119+ txdesc->Ctl2_8, txdesc->error,
28120+ txdesc->u.r1.rate);
28121+ txdesc = advance_txdesc(adev, txdesc, 1);
28122+ }
28123+
28124+ /* dump host tx descriptor ring buffer */
28125+
28126+ txhostdesc = adev->txhostdesc_start;
28127+
28128+ /* loop over complete host send pool */
28129+ if (txhostdesc) for (i = 0; i < TX_CNT * 2; i++) {
28130+ printk("\ndump host txdesc %d:\n"
28131+ "mem pos %p\n"
28132+ "buffer mem pos 0x%X\n"
28133+ "buffer mem offset 0x%X\n"
28134+ "CTL 0x%X\n"
28135+ "Length 0x%X\n"
28136+ "next 0x%X\n"
28137+ "Status 0x%X\n",
28138+ i,
28139+ txhostdesc,
28140+ acx2cpu(txhostdesc->data_phy),
28141+ txhostdesc->data_offset,
28142+ le16_to_cpu(txhostdesc->Ctl_16),
28143+ le16_to_cpu(txhostdesc->length),
28144+ acx2cpu(txhostdesc->desc_phy_next),
28145+ le32_to_cpu(txhostdesc->Status));
28146+ txhostdesc++;
28147+ }
28148+
28149+ /* write_reg16(adev, 0xb4, 0x4); */
28150+
28151+ acx_unlock(adev, flags);
28152+end_ok:
28153+
28154+ acx_sem_unlock(adev);
28155+#endif /* ACX_DEBUG */
28156+ return OK;
28157+}
28158+
28159+
28160+/***********************************************************************
28161+*/
28162+int
28163+acx100pci_ioctl_set_phy_amp_bias(
28164+ struct net_device *ndev,
28165+ struct iw_request_info *info,
28166+ struct iw_param *vwrq,
28167+ char *extra)
28168+{
28169+ acx_device_t *adev = ndev2adev(ndev);
28170+ unsigned long flags;
28171+ u16 gpio_old;
28172+
28173+ if (!IS_ACX100(adev)) {
28174+ /* WARNING!!!
28175+ * Removing this check *might* damage
28176+ * hardware, since we're tweaking GPIOs here after all!!!
28177+ * You've been warned...
28178+ * WARNING!!! */
28179+ printk("acx: sorry, setting bias level for non-acx100 "
28180+ "is not supported yet\n");
28181+ return OK;
28182+ }
28183+
28184+ if (*extra > 7) {
28185+ printk("acx: invalid bias parameter, range is 0-7\n");
28186+ return -EINVAL;
28187+ }
28188+
28189+ acx_sem_lock(adev);
28190+
28191+ /* Need to lock accesses to [IO_ACX_GPIO_OUT]:
28192+ * IRQ handler uses it to update LED */
28193+ acx_lock(adev, flags);
28194+ gpio_old = read_reg16(adev, IO_ACX_GPIO_OUT);
28195+ write_reg16(adev, IO_ACX_GPIO_OUT, (gpio_old & 0xf8ff) | ((u16)*extra << 8));
28196+ acx_unlock(adev, flags);
28197+
28198+ log(L_DEBUG, "gpio_old: 0x%04X\n", gpio_old);
28199+ printk("%s: PHY power amplifier bias: old:%d, new:%d\n",
28200+ ndev->name,
28201+ (gpio_old & 0x0700) >> 8, (unsigned char)*extra);
28202+
28203+ acx_sem_unlock(adev);
28204+
28205+ return OK;
28206+}
28207+
28208+
28209+/***************************************************************
28210+** acxpci_l_alloc_tx
28211+** Actually returns a txdesc_t* ptr
28212+**
28213+** FIXME: in case of fragments, should allocate multiple descrs
28214+** after figuring out how many we need and whether we still have
28215+** sufficiently many.
28216+*/
28217+tx_t*
28218+acxpci_l_alloc_tx(acx_device_t *adev)
28219+{
28220+ struct txdesc *txdesc;
28221+ unsigned head;
28222+ u8 ctl8;
28223+
28224+ FN_ENTER;
28225+
28226+ if (unlikely(!adev->tx_free)) {
28227+ printk("acx: BUG: no free txdesc left\n");
28228+ txdesc = NULL;
28229+ goto end;
28230+ }
28231+
28232+ head = adev->tx_head;
28233+ txdesc = get_txdesc(adev, head);
28234+ ctl8 = txdesc->Ctl_8;
28235+
28236+ /* 2005-10-11: there were several bug reports on this happening
28237+ ** but now cause seems to be understood & fixed */
28238+ if (unlikely(DESC_CTL_HOSTOWN != (ctl8 & DESC_CTL_ACXDONE_HOSTOWN))) {
28239+ /* whoops, descr at current index is not free, so probably
28240+ * ring buffer already full */
28241+ printk("acx: BUG: tx_head:%d Ctl8:0x%02X - failed to find "
28242+ "free txdesc\n", head, ctl8);
28243+ txdesc = NULL;
28244+ goto end;
28245+ }
28246+
28247+ /* Needed in case txdesc won't be eventually submitted for tx */
28248+ txdesc->Ctl_8 = DESC_CTL_ACXDONE_HOSTOWN;
28249+
28250+ adev->tx_free--;
28251+ log(L_BUFT, "tx: got desc %u, %u remain\n",
28252+ head, adev->tx_free);
28253+ /* Keep a few free descs between head and tail of tx ring.
28254+ ** It is not absolutely needed, just feels safer */
28255+ if (adev->tx_free < TX_STOP_QUEUE) {
28256+ log(L_BUF, "stop queue (%u tx desc left)\n",
28257+ adev->tx_free);
28258+ acx_stop_queue(adev->ndev, NULL);
28259+ }
28260+
28261+ /* returning current descriptor, so advance to next free one */
28262+ adev->tx_head = (head + 1) % TX_CNT;
28263+end:
28264+ FN_EXIT0;
28265+
28266+ return (tx_t*)txdesc;
28267+}
28268+
28269+
28270+/***********************************************************************
28271+*/
28272+void*
28273+acxpci_l_get_txbuf(acx_device_t *adev, tx_t* tx_opaque)
28274+{
28275+ return get_txhostdesc(adev, (txdesc_t*)tx_opaque)->data;
28276+}
28277+
28278+
28279+/***********************************************************************
28280+** acxpci_l_tx_data
28281+**
28282+** Can be called from IRQ (rx -> (AP bridging or mgmt response) -> tx).
28283+** Can be called from acx_i_start_xmit (data frames from net core).
28284+**
28285+** FIXME: in case of fragments, should loop over the number of
28286+** pre-allocated tx descrs, properly setting up transfer data and
28287+** CTL_xxx flags according to fragment number.
28288+*/
28289+void
28290+acxpci_l_tx_data(acx_device_t *adev, tx_t* tx_opaque, int len)
28291+{
28292+ txdesc_t *txdesc = (txdesc_t*)tx_opaque;
28293+ txhostdesc_t *hostdesc1, *hostdesc2;
28294+ client_t *clt;
28295+ u16 rate_cur;
28296+ u8 Ctl_8, Ctl2_8;
28297+
28298+ FN_ENTER;
28299+
28300+ /* fw doesn't tx such packets anyhow */
28301+ if (unlikely(len < WLAN_HDR_A3_LEN))
28302+ goto end;
28303+
28304+ hostdesc1 = get_txhostdesc(adev, txdesc);
28305+ /* modify flag status in separate variable to be able to write it back
28306+ * in one big swoop later (also in order to have less device memory
28307+ * accesses) */
28308+ Ctl_8 = txdesc->Ctl_8;
28309+ Ctl2_8 = 0; /* really need to init it to 0, not txdesc->Ctl2_8, it seems */
28310+
28311+ hostdesc2 = hostdesc1 + 1;
28312+
28313+ /* DON'T simply set Ctl field to 0 here globally,
28314+ * it needs to maintain a consistent flag status (those are state flags!!),
28315+ * otherwise it may lead to severe disruption. Only set or reset particular
28316+ * flags at the exact moment this is needed... */
28317+
28318+ /* let chip do RTS/CTS handshaking before sending
28319+ * in case packet size exceeds threshold */
28320+ if (len > adev->rts_threshold)
28321+ SET_BIT(Ctl2_8, DESC_CTL2_RTS);
28322+ else
28323+ CLEAR_BIT(Ctl2_8, DESC_CTL2_RTS);
28324+
28325+ switch (adev->mode) {
28326+ case ACX_MODE_0_ADHOC:
28327+ case ACX_MODE_3_AP:
28328+ clt = acx_l_sta_list_get(adev, ((wlan_hdr_t*)hostdesc1->data)->a1);
28329+ break;
28330+ case ACX_MODE_2_STA:
28331+ clt = adev->ap_client;
28332+ break;
28333+#if 0
28334+/* testing was done on acx111: */
28335+ case ACX_MODE_MONITOR:
28336+ SET_BIT(Ctl2_8, 0
28337+/* sends CTS to self before packet */
28338+ + DESC_CTL2_SEQ /* don't increase sequence field */
28339+/* not working (looks like good fcs is still added) */
28340+ + DESC_CTL2_FCS /* don't add the FCS */
28341+/* not tested */
28342+ + DESC_CTL2_MORE_FRAG
28343+/* not tested */
28344+ + DESC_CTL2_RETRY /* don't increase retry field */
28345+/* not tested */
28346+ + DESC_CTL2_POWER /* don't increase power mgmt. field */
28347+/* no effect */
28348+ + DESC_CTL2_WEP /* encrypt this frame */
28349+/* not tested */
28350+ + DESC_CTL2_DUR /* don't increase duration field */
28351+ );
28352+ /* fallthrough */
28353+#endif
28354+ default: /* ACX_MODE_OFF, ACX_MODE_MONITOR */
28355+ clt = NULL;
28356+ break;
28357+ }
28358+
28359+ rate_cur = clt ? clt->rate_cur : adev->rate_bcast;
28360+ if (unlikely(!rate_cur)) {
28361+ printk("acx: driver bug! bad ratemask\n");
28362+ goto end;
28363+ }
28364+
28365+ /* used in tx cleanup routine for auto rate and accounting: */
28366+ put_txcr(adev, txdesc, clt, rate_cur);
28367+
28368+ txdesc->total_length = cpu_to_le16(len);
28369+ hostdesc2->length = cpu_to_le16(len - WLAN_HDR_A3_LEN);
28370+ if (IS_ACX111(adev)) {
28371+ /* note that if !txdesc->do_auto, txrate->cur
28372+ ** has only one nonzero bit */
28373+ txdesc->u.r2.rate111 = cpu_to_le16(
28374+ rate_cur
28375+ /* WARNING: I was never able to make it work with prism54 AP.
28376+ ** It was falling down to 1Mbit where shortpre is not applicable,
28377+ ** and not working at all at "5,11 basic rates only" setting.
28378+ ** I even didn't see tx packets in radio packet capture.
28379+ ** Disabled for now --vda */
28380+ /*| ((clt->shortpre && clt->cur!=RATE111_1) ? RATE111_SHORTPRE : 0) */
28381+ );
28382+#ifdef TODO_FIGURE_OUT_WHEN_TO_SET_THIS
28383+ /* should add this to rate111 above as necessary */
28384+ | (clt->pbcc511 ? RATE111_PBCC511 : 0)
28385+#endif
28386+ hostdesc1->length = cpu_to_le16(len);
28387+ } else { /* ACX100 */
28388+ u8 rate_100 = clt ? clt->rate_100 : adev->rate_bcast100;
28389+ txdesc->u.r1.rate = rate_100;
28390+#ifdef TODO_FIGURE_OUT_WHEN_TO_SET_THIS
28391+ if (clt->pbcc511) {
28392+ if (n == RATE100_5 || n == RATE100_11)
28393+ n |= RATE100_PBCC511;
28394+ }
28395+
28396+ if (clt->shortpre && (clt->cur != RATE111_1))
28397+ SET_BIT(Ctl_8, DESC_CTL_SHORT_PREAMBLE); /* set Short Preamble */
28398+#endif
28399+ /* set autodma and reclaim and 1st mpdu */
28400+ SET_BIT(Ctl_8, DESC_CTL_AUTODMA | DESC_CTL_RECLAIM | DESC_CTL_FIRSTFRAG);
28401+#if ACX_FRAGMENTATION
28402+ /* SET_BIT(Ctl2_8, DESC_CTL2_MORE_FRAG); cannot set it unconditionally, needs to be set for all non-last fragments */
28403+#endif
28404+ hostdesc1->length = cpu_to_le16(WLAN_HDR_A3_LEN);
28405+ }
28406+ /* don't need to clean ack/rts statistics here, already
28407+ * done on descr cleanup */
28408+
28409+ /* clears HOSTOWN and ACXDONE bits, thus telling that the descriptors
28410+ * are now owned by the acx100; do this as LAST operation */
28411+ CLEAR_BIT(Ctl_8, DESC_CTL_ACXDONE_HOSTOWN);
28412+ /* flush writes before we release hostdesc to the adapter here */
28413+ wmb();
28414+ CLEAR_BIT(hostdesc1->Ctl_16, cpu_to_le16(DESC_CTL_HOSTOWN));
28415+ CLEAR_BIT(hostdesc2->Ctl_16, cpu_to_le16(DESC_CTL_HOSTOWN));
28416+
28417+ /* write back modified flags */
28418+ txdesc->Ctl2_8 = Ctl2_8;
28419+ txdesc->Ctl_8 = Ctl_8;
28420+ /* unused: txdesc->tx_time = cpu_to_le32(jiffies); */
28421+
28422+ /* flush writes before we tell the adapter that it's its turn now */
28423+ mmiowb();
28424+ write_reg16(adev, IO_ACX_INT_TRIG, INT_TRIG_TXPRC);
28425+ write_flush(adev);
28426+
28427+ /* log the packet content AFTER sending it,
28428+ * in order to not delay sending any further than absolutely needed
28429+ * Do separate logs for acx100/111 to have human-readable rates */
28430+ if (unlikely(acx_debug & (L_XFER|L_DATA))) {
28431+ u16 fc = ((wlan_hdr_t*)hostdesc1->data)->fc;
28432+ if (IS_ACX111(adev))
28433+ printk("tx: pkt (%s): len %d "
28434+ "rate %04X%s status %u\n",
28435+ acx_get_packet_type_string(le16_to_cpu(fc)), len,
28436+ le16_to_cpu(txdesc->u.r2.rate111),
28437+ (le16_to_cpu(txdesc->u.r2.rate111) & RATE111_SHORTPRE) ? "(SPr)" : "",
28438+ adev->status);
28439+ else
28440+ printk("tx: pkt (%s): len %d rate %03u%s status %u\n",
28441+ acx_get_packet_type_string(fc), len,
28442+ txdesc->u.r1.rate,
28443+ (Ctl_8 & DESC_CTL_SHORT_PREAMBLE) ? "(SPr)" : "",
28444+ adev->status);
28445+
28446+ if (acx_debug & L_DATA) {
28447+ printk("tx: 802.11 [%d]: ", len);
28448+ acx_dump_bytes(hostdesc1->data, len);
28449+ }
28450+ }
28451+end:
28452+ FN_EXIT0;
28453+}
28454+
28455+
28456+/***********************************************************************
28457+** acxpci_l_clean_txdesc
28458+**
28459+** This function resets the txdescs' status when the ACX100
28460+** signals the TX done IRQ (txdescs have been processed), starting with
28461+** the pool index of the descriptor which we would use next,
28462+** in order to make sure that we can be as fast as possible
28463+** in filling new txdescs.
28464+** Everytime we get called we know where the next packet to be cleaned is.
28465+*/
28466+
28467+#if !ACX_DEBUG
28468+static inline void log_txbuffer(const acx_device_t *adev) {}
28469+#else
28470+static void
28471+log_txbuffer(acx_device_t *adev)
28472+{
28473+ txdesc_t *txdesc;
28474+ int i;
28475+
28476+ /* no FN_ENTER here, we don't want that */
28477+ /* no locks here, since it's entirely non-critical code */
28478+ txdesc = adev->txdesc_start;
28479+ if (unlikely(!txdesc)) return;
28480+ printk("tx: desc->Ctl8's:");
28481+ for (i = 0; i < TX_CNT; i++) {
28482+ printk(" %02X", txdesc->Ctl_8);
28483+ txdesc = advance_txdesc(adev, txdesc, 1);
28484+ }
28485+ printk("\n");
28486+}
28487+#endif
28488+
28489+
28490+static void
28491+handle_tx_error(acx_device_t *adev, u8 error, unsigned int finger)
28492+{
28493+ const char *err = "unknown error";
28494+
28495+ /* hmm, should we handle this as a mask
28496+ * of *several* bits?
28497+ * For now I think only caring about
28498+ * individual bits is ok... */
28499+ switch (error) {
28500+ case 0x01:
28501+ err = "no Tx due to error in other fragment";
28502+ adev->wstats.discard.fragment++;
28503+ break;
28504+ case 0x02:
28505+ err = "Tx aborted";
28506+ adev->stats.tx_aborted_errors++;
28507+ break;
28508+ case 0x04:
28509+ err = "Tx desc wrong parameters";
28510+ adev->wstats.discard.misc++;
28511+ break;
28512+ case 0x08:
28513+ err = "WEP key not found";
28514+ adev->wstats.discard.misc++;
28515+ break;
28516+ case 0x10:
28517+ err = "MSDU lifetime timeout? - try changing "
28518+ "'iwconfig retry lifetime XXX'";
28519+ adev->wstats.discard.misc++;
28520+ break;
28521+ case 0x20:
28522+ err = "excessive Tx retries due to either distance "
28523+ "too high or unable to Tx or Tx frame error - "
28524+ "try changing 'iwconfig txpower XXX' or "
28525+ "'sens'itivity or 'retry'";
28526+ adev->wstats.discard.retries++;
28527+ /* Tx error 0x20 also seems to occur on
28528+ * overheating, so I'm not sure whether we
28529+ * actually want to do aggressive radio recalibration,
28530+ * since people maybe won't notice then that their hardware
28531+ * is slowly getting cooked...
28532+ * Or is it still a safe long distance from utter
28533+ * radio non-functionality despite many radio recalibs
28534+ * to final destructive overheating of the hardware?
28535+ * In this case we really should do recalib here...
28536+ * I guess the only way to find out is to do a
28537+ * potentially fatal self-experiment :-\
28538+ * Or maybe only recalib in case we're using Tx
28539+ * rate auto (on errors switching to lower speed
28540+ * --> less heat?) or 802.11 power save mode?
28541+ *
28542+ * ok, just do it. */
28543+ if (++adev->retry_errors_msg_ratelimit % 4 == 0) {
28544+ if (adev->retry_errors_msg_ratelimit <= 20) {
28545+ printk("%s: several excessive Tx "
28546+ "retry errors occurred, attempting "
28547+ "to recalibrate radio. Radio "
28548+ "drift might be caused by increasing "
28549+ "card temperature, please check the card "
28550+ "before it's too late!\n",
28551+ adev->ndev->name);
28552+ if (adev->retry_errors_msg_ratelimit == 20)
28553+ printk("disabling above message\n");
28554+ }
28555+
28556+ acx_schedule_task(adev, ACX_AFTER_IRQ_CMD_RADIO_RECALIB);
28557+ }
28558+ break;
28559+ case 0x40:
28560+ err = "Tx buffer overflow";
28561+ adev->stats.tx_fifo_errors++;
28562+ break;
28563+ case 0x80:
28564+ /* possibly ACPI C-state powersaving related!!!
28565+ * (DMA timeout due to excessively high wakeup
28566+ * latency after C-state activation!?)
28567+ * Disable C-State powersaving and try again,
28568+ * then PLEASE REPORT, I'm VERY interested in
28569+ * whether my theory is correct that this is
28570+ * actually the problem here.
28571+ * In that case, use new Linux idle wakeup latency
28572+ * requirements kernel API to prevent this issue. */
28573+ err = "DMA error";
28574+ adev->wstats.discard.misc++;
28575+ break;
28576+ }
28577+ adev->stats.tx_errors++;
28578+ if (adev->stats.tx_errors <= 20)
28579+ printk("%s: tx error 0x%02X, buf %02u! (%s)\n",
28580+ adev->ndev->name, error, finger, err);
28581+ else
28582+ printk("%s: tx error 0x%02X, buf %02u!\n",
28583+ adev->ndev->name, error, finger);
28584+}
28585+
28586+
28587+unsigned int
28588+acxpci_l_clean_txdesc(acx_device_t *adev)
28589+{
28590+ txdesc_t *txdesc;
28591+ unsigned finger;
28592+ int num_cleaned;
28593+ u16 r111;
28594+ u8 error, ack_failures, rts_failures, rts_ok, r100;
28595+
28596+ FN_ENTER;
28597+
28598+ if (unlikely(acx_debug & L_DEBUG))
28599+ log_txbuffer(adev);
28600+
28601+ log(L_BUFT, "tx: cleaning up bufs from %u\n", adev->tx_tail);
28602+
28603+ /* We know first descr which is not free yet. We advance it as far
28604+ ** as we see correct bits set in following descs (if next desc
28605+ ** is NOT free, we shouldn't advance at all). We know that in
28606+ ** front of tx_tail may be "holes" with isolated free descs.
28607+ ** We will catch up when all intermediate descs will be freed also */
28608+
28609+ finger = adev->tx_tail;
28610+ num_cleaned = 0;
28611+ while (likely(finger != adev->tx_head)) {
28612+ txdesc = get_txdesc(adev, finger);
28613+
28614+ /* If we allocated txdesc on tx path but then decided
28615+ ** to NOT use it, then it will be left as a free "bubble"
28616+ ** in the "allocated for tx" part of the ring.
28617+ ** We may meet it on the next ring pass here. */
28618+
28619+ /* stop if not marked as "tx finished" and "host owned" */
28620+ if ((txdesc->Ctl_8 & DESC_CTL_ACXDONE_HOSTOWN)
28621+ != DESC_CTL_ACXDONE_HOSTOWN) {
28622+ if (unlikely(!num_cleaned)) { /* maybe remove completely */
28623+ log(L_BUFT, "clean_txdesc: tail isn't free. "
28624+ "tail:%d head:%d\n",
28625+ adev->tx_tail, adev->tx_head);
28626+ }
28627+ break;
28628+ }
28629+
28630+ /* remember desc values... */
28631+ error = txdesc->error;
28632+ ack_failures = txdesc->ack_failures;
28633+ rts_failures = txdesc->rts_failures;
28634+ rts_ok = txdesc->rts_ok;
28635+ r100 = txdesc->u.r1.rate;
28636+ r111 = le16_to_cpu(txdesc->u.r2.rate111);
28637+
28638+ /* need to check for certain error conditions before we
28639+ * clean the descriptor: we still need valid descr data here */
28640+ if (unlikely(0x30 & error)) {
28641+ /* only send IWEVTXDROP in case of retry or lifetime exceeded;
28642+ * all other errors mean we screwed up locally */
28643+ union iwreq_data wrqu;
28644+ wlan_hdr_t *hdr;
28645+ txhostdesc_t *hostdesc;
28646+
28647+ hostdesc = get_txhostdesc(adev, txdesc);
28648+ hdr = (wlan_hdr_t *)hostdesc->data;
28649+ MAC_COPY(wrqu.addr.sa_data, hdr->a1);
28650+ wireless_send_event(adev->ndev, IWEVTXDROP, &wrqu, NULL);
28651+ }
28652+
28653+ /* ...and free the desc */
28654+ txdesc->error = 0;
28655+ txdesc->ack_failures = 0;
28656+ txdesc->rts_failures = 0;
28657+ txdesc->rts_ok = 0;
28658+ /* signal host owning it LAST, since ACX already knows that this
28659+ ** descriptor is finished since it set Ctl_8 accordingly. */
28660+ txdesc->Ctl_8 = DESC_CTL_HOSTOWN;
28661+
28662+ adev->tx_free++;
28663+ num_cleaned++;
28664+
28665+ if ((adev->tx_free >= TX_START_QUEUE)
28666+ && (adev->status == ACX_STATUS_4_ASSOCIATED)
28667+ && (acx_queue_stopped(adev->ndev))
28668+ ) {
28669+ log(L_BUF, "tx: wake queue (avail. Tx desc %u)\n",
28670+ adev->tx_free);
28671+ acx_wake_queue(adev->ndev, NULL);
28672+ }
28673+
28674+ /* do error checking, rate handling and logging
28675+ * AFTER having done the work, it's faster */
28676+
28677+ /* do rate handling */
28678+ if (adev->rate_auto) {
28679+ struct client *clt = get_txc(adev, txdesc);
28680+ if (clt) {
28681+ u16 cur = get_txr(adev, txdesc);
28682+ if (clt->rate_cur == cur) {
28683+ acx_l_handle_txrate_auto(adev, clt,
28684+ cur, /* intended rate */
28685+ r100, r111, /* actually used rate */
28686+ (error & 0x30), /* was there an error? */
28687+ TX_CNT + TX_CLEAN_BACKLOG - adev->tx_free);
28688+ }
28689+ }
28690+ }
28691+
28692+ if (unlikely(error))
28693+ handle_tx_error(adev, error, finger);
28694+
28695+ if (IS_ACX111(adev))
28696+ log(L_BUFT, "tx: cleaned %u: !ACK=%u !RTS=%u RTS=%u r111=%04X\n",
28697+ finger, ack_failures, rts_failures, rts_ok, r111);
28698+ else
28699+ log(L_BUFT, "tx: cleaned %u: !ACK=%u !RTS=%u RTS=%u rate=%u\n",
28700+ finger, ack_failures, rts_failures, rts_ok, r100);
28701+
28702+ /* update pointer for descr to be cleaned next */
28703+ finger = (finger + 1) % TX_CNT;
28704+ }
28705+
28706+ /* remember last position */
28707+ adev->tx_tail = finger;
28708+/* end: */
28709+ FN_EXIT1(num_cleaned);
28710+ return num_cleaned;
28711+}
28712+
28713+/* clean *all* Tx descriptors, and regardless of their previous state.
28714+ * Used for brute-force reset handling. */
28715+void
28716+acxpci_l_clean_txdesc_emergency(acx_device_t *adev)
28717+{
28718+ txdesc_t *txdesc;
28719+ int i;
28720+
28721+ FN_ENTER;
28722+
28723+ for (i = 0; i < TX_CNT; i++) {
28724+ txdesc = get_txdesc(adev, i);
28725+
28726+ /* free it */
28727+ txdesc->ack_failures = 0;
28728+ txdesc->rts_failures = 0;
28729+ txdesc->rts_ok = 0;
28730+ txdesc->error = 0;
28731+ txdesc->Ctl_8 = DESC_CTL_HOSTOWN;
28732+ }
28733+
28734+ adev->tx_free = TX_CNT;
28735+
28736+ FN_EXIT0;
28737+}
28738+
28739+
28740+/***********************************************************************
28741+** acxpci_s_create_tx_host_desc_queue
28742+*/
28743+
28744+static void*
28745+allocate(acx_device_t *adev, size_t size, dma_addr_t *phy, const char *msg)
28746+{
28747+ void *ptr;
28748+
28749+ ptr = dma_alloc_coherent(adev->pdev ? &adev->pdev->dev : NULL,
28750+ size, phy, GFP_KERNEL);
28751+
28752+ if (ptr) {
28753+ log(L_DEBUG, "%s sz=%d adr=0x%p phy=0x%08llx\n",
28754+ msg, (int)size, ptr, (unsigned long long)*phy);
28755+ memset(ptr, 0, size);
28756+ return ptr;
28757+ }
28758+ printk(KERN_ERR "acx: %s allocation FAILED (%d bytes)\n",
28759+ msg, (int)size);
28760+ return NULL;
28761+}
28762+
28763+
28764+static int
28765+acxpci_s_create_tx_host_desc_queue(acx_device_t *adev)
28766+{
28767+ txhostdesc_t *hostdesc;
28768+ u8 *txbuf;
28769+ dma_addr_t hostdesc_phy;
28770+ dma_addr_t txbuf_phy;
28771+ int i;
28772+
28773+ FN_ENTER;
28774+
28775+ /* allocate TX buffer */
28776+ adev->txbuf_area_size = TX_CNT * WLAN_A4FR_MAXLEN_WEP_FCS;
28777+ adev->txbuf_start = allocate(adev, adev->txbuf_area_size,
28778+ &adev->txbuf_startphy, "txbuf_start");
28779+ if (!adev->txbuf_start)
28780+ goto fail;
28781+
28782+ /* allocate the TX host descriptor queue pool */
28783+ adev->txhostdesc_area_size = TX_CNT * 2*sizeof(*hostdesc);
28784+ adev->txhostdesc_start = allocate(adev, adev->txhostdesc_area_size,
28785+ &adev->txhostdesc_startphy, "txhostdesc_start");
28786+ if (!adev->txhostdesc_start)
28787+ goto fail;
28788+ /* check for proper alignment of TX host descriptor pool */
28789+ if ((long) adev->txhostdesc_start & 3) {
28790+ printk("acx: driver bug: dma alloc returns unaligned address\n");
28791+ goto fail;
28792+ }
28793+
28794+ hostdesc = adev->txhostdesc_start;
28795+ hostdesc_phy = adev->txhostdesc_startphy;
28796+ txbuf = adev->txbuf_start;
28797+ txbuf_phy = adev->txbuf_startphy;
28798+
28799+#if 0
28800+/* Each tx buffer is accessed by hardware via
28801+** txdesc -> txhostdesc(s) -> txbuffer(s).
28802+** We use only one txhostdesc per txdesc, but it looks like
28803+** acx111 is buggy: it accesses second txhostdesc
28804+** (via hostdesc.desc_phy_next field) even if
28805+** txdesc->length == hostdesc->length and thus
28806+** entire packet was placed into first txhostdesc.
28807+** Due to this bug acx111 hangs unless second txhostdesc
28808+** has le16_to_cpu(hostdesc.length) = 3 (or larger)
28809+** Storing NULL into hostdesc.desc_phy_next
28810+** doesn't seem to help.
28811+**
28812+** Update: although it worked on Xterasys XN-2522g
28813+** with len=3 trick, WG311v2 is even more bogus, doesn't work.
28814+** Keeping this code (#ifdef'ed out) for documentational purposes.
28815+*/
28816+ for (i = 0; i < TX_CNT*2; i++) {
28817+ hostdesc_phy += sizeof(*hostdesc);
28818+ if (!(i & 1)) {
28819+ hostdesc->data_phy = cpu2acx(txbuf_phy);
28820+ /* hostdesc->data_offset = ... */
28821+ /* hostdesc->reserved = ... */
28822+ hostdesc->Ctl_16 = cpu_to_le16(DESC_CTL_HOSTOWN);
28823+ /* hostdesc->length = ... */
28824+ hostdesc->desc_phy_next = cpu2acx(hostdesc_phy);
28825+ hostdesc->pNext = ptr2acx(NULL);
28826+ /* hostdesc->Status = ... */
28827+ /* below: non-hardware fields */
28828+ hostdesc->data = txbuf;
28829+
28830+ txbuf += WLAN_A4FR_MAXLEN_WEP_FCS;
28831+ txbuf_phy += WLAN_A4FR_MAXLEN_WEP_FCS;
28832+ } else {
28833+ /* hostdesc->data_phy = ... */
28834+ /* hostdesc->data_offset = ... */
28835+ /* hostdesc->reserved = ... */
28836+ /* hostdesc->Ctl_16 = ... */
28837+ hostdesc->length = cpu_to_le16(3); /* bug workaround */
28838+ /* hostdesc->desc_phy_next = ... */
28839+ /* hostdesc->pNext = ... */
28840+ /* hostdesc->Status = ... */
28841+ /* below: non-hardware fields */
28842+ /* hostdesc->data = ... */
28843+ }
28844+ hostdesc++;
28845+ }
28846+#endif
28847+/* We initialize two hostdescs so that they point to adjacent
28848+** memory areas. Thus txbuf is really just a contiguous memory area */
28849+ for (i = 0; i < TX_CNT*2; i++) {
28850+ hostdesc_phy += sizeof(*hostdesc);
28851+
28852+ hostdesc->data_phy = cpu2acx(txbuf_phy);
28853+ /* done by memset(0): hostdesc->data_offset = 0; */
28854+ /* hostdesc->reserved = ... */
28855+ hostdesc->Ctl_16 = cpu_to_le16(DESC_CTL_HOSTOWN);
28856+ /* hostdesc->length = ... */
28857+ hostdesc->desc_phy_next = cpu2acx(hostdesc_phy);
28858+ /* done by memset(0): hostdesc->pNext = ptr2acx(NULL); */
28859+ /* hostdesc->Status = ... */
28860+ /* ->data is a non-hardware field: */
28861+ hostdesc->data = txbuf;
28862+
28863+ if (!(i & 1)) {
28864+ txbuf += WLAN_HDR_A3_LEN;
28865+ txbuf_phy += WLAN_HDR_A3_LEN;
28866+ } else {
28867+ txbuf += WLAN_A4FR_MAXLEN_WEP_FCS - WLAN_HDR_A3_LEN;
28868+ txbuf_phy += WLAN_A4FR_MAXLEN_WEP_FCS - WLAN_HDR_A3_LEN;
28869+ }
28870+ hostdesc++;
28871+ }
28872+ hostdesc--;
28873+ hostdesc->desc_phy_next = cpu2acx(adev->txhostdesc_startphy);
28874+
28875+ FN_EXIT1(OK);
28876+ return OK;
28877+fail:
28878+ printk("acx: create_tx_host_desc_queue FAILED\n");
28879+ /* dealloc will be done by free function on error case */
28880+ FN_EXIT1(NOT_OK);
28881+ return NOT_OK;
28882+}
28883+
28884+
28885+/***************************************************************
28886+** acxpci_s_create_rx_host_desc_queue
28887+*/
28888+/* the whole size of a data buffer (header plus data body)
28889+ * plus 32 bytes safety offset at the end */
28890+#define RX_BUFFER_SIZE (sizeof(rxbuffer_t) + 32)
28891+
28892+static int
28893+acxpci_s_create_rx_host_desc_queue(acx_device_t *adev)
28894+{
28895+ rxhostdesc_t *hostdesc;
28896+ rxbuffer_t *rxbuf;
28897+ dma_addr_t hostdesc_phy;
28898+ dma_addr_t rxbuf_phy;
28899+ int i;
28900+
28901+ FN_ENTER;
28902+
28903+ /* allocate the RX host descriptor queue pool */
28904+ adev->rxhostdesc_area_size = RX_CNT * sizeof(*hostdesc);
28905+ adev->rxhostdesc_start = allocate(adev, adev->rxhostdesc_area_size,
28906+ &adev->rxhostdesc_startphy, "rxhostdesc_start");
28907+ if (!adev->rxhostdesc_start)
28908+ goto fail;
28909+ /* check for proper alignment of RX host descriptor pool */
28910+ if ((long) adev->rxhostdesc_start & 3) {
28911+ printk("acx: driver bug: dma alloc returns unaligned address\n");
28912+ goto fail;
28913+ }
28914+
28915+ /* allocate Rx buffer pool which will be used by the acx
28916+ * to store the whole content of the received frames in it */
28917+ adev->rxbuf_area_size = RX_CNT * RX_BUFFER_SIZE;
28918+ adev->rxbuf_start = allocate(adev, adev->rxbuf_area_size,
28919+ &adev->rxbuf_startphy, "rxbuf_start");
28920+ if (!adev->rxbuf_start)
28921+ goto fail;
28922+
28923+ rxbuf = adev->rxbuf_start;
28924+ rxbuf_phy = adev->rxbuf_startphy;
28925+ hostdesc = adev->rxhostdesc_start;
28926+ hostdesc_phy = adev->rxhostdesc_startphy;
28927+
28928+ /* don't make any popular C programming pointer arithmetic mistakes
28929+ * here, otherwise I'll kill you...
28930+ * (and don't dare asking me why I'm warning you about that...) */
28931+ for (i = 0; i < RX_CNT; i++) {
28932+ hostdesc->data = rxbuf;
28933+ hostdesc->data_phy = cpu2acx(rxbuf_phy);
28934+ hostdesc->length = cpu_to_le16(RX_BUFFER_SIZE);
28935+ CLEAR_BIT(hostdesc->Ctl_16, cpu_to_le16(DESC_CTL_HOSTOWN));
28936+ rxbuf++;
28937+ rxbuf_phy += sizeof(*rxbuf);
28938+ hostdesc_phy += sizeof(*hostdesc);
28939+ hostdesc->desc_phy_next = cpu2acx(hostdesc_phy);
28940+ hostdesc++;
28941+ }
28942+ hostdesc--;
28943+ hostdesc->desc_phy_next = cpu2acx(adev->rxhostdesc_startphy);
28944+ FN_EXIT1(OK);
28945+ return OK;
28946+fail:
28947+ printk("acx: create_rx_host_desc_queue FAILED\n");
28948+ /* dealloc will be done by free function on error case */
28949+ FN_EXIT1(NOT_OK);
28950+ return NOT_OK;
28951+}
28952+
28953+
28954+/***************************************************************
28955+** acxpci_s_create_hostdesc_queues
28956+*/
28957+int
28958+acxpci_s_create_hostdesc_queues(acx_device_t *adev)
28959+{
28960+ int result;
28961+ result = acxpci_s_create_tx_host_desc_queue(adev);
28962+ if (OK != result) return result;
28963+ result = acxpci_s_create_rx_host_desc_queue(adev);
28964+ return result;
28965+}
28966+
28967+
28968+/***************************************************************
28969+** acxpci_create_tx_desc_queue
28970+*/
28971+static void
28972+acxpci_create_tx_desc_queue(acx_device_t *adev, u32 tx_queue_start)
28973+{
28974+ txdesc_t *txdesc;
28975+ txhostdesc_t *hostdesc;
28976+ dma_addr_t hostmemptr;
28977+ u32 mem_offs;
28978+ int i;
28979+
28980+ FN_ENTER;
28981+
28982+ if (IS_ACX100(adev))
28983+ adev->txdesc_size = sizeof(*txdesc);
28984+ else
28985+ /* the acx111 txdesc is 4 bytes larger */
28986+ adev->txdesc_size = sizeof(*txdesc) + 4;
28987+
28988+ adev->txdesc_start = (txdesc_t *) (adev->iobase2 + tx_queue_start);
28989+
28990+ log(L_DEBUG, "adev->iobase2=%p\n"
28991+ "tx_queue_start=%08X\n"
28992+ "adev->txdesc_start=%p\n",
28993+ adev->iobase2,
28994+ tx_queue_start,
28995+ adev->txdesc_start);
28996+
28997+ adev->tx_free = TX_CNT;
28998+ /* done by memset: adev->tx_head = 0; */
28999+ /* done by memset: adev->tx_tail = 0; */
29000+ txdesc = adev->txdesc_start;
29001+ mem_offs = tx_queue_start;
29002+ hostmemptr = adev->txhostdesc_startphy;
29003+ hostdesc = adev->txhostdesc_start;
29004+
29005+ if (IS_ACX111(adev)) {
29006+ /* ACX111 has a preinitialized Tx buffer! */
29007+ /* loop over whole send pool */
29008+ /* FIXME: do we have to do the hostmemptr stuff here?? */
29009+ for (i = 0; i < TX_CNT; i++) {
29010+ txdesc->HostMemPtr = ptr2acx(hostmemptr);
29011+ txdesc->Ctl_8 = DESC_CTL_HOSTOWN;
29012+ /* reserve two (hdr desc and payload desc) */
29013+ hostdesc += 2;
29014+ hostmemptr += 2 * sizeof(*hostdesc);
29015+ txdesc = advance_txdesc(adev, txdesc, 1);
29016+ }
29017+ } else {
29018+ /* ACX100 Tx buffer needs to be initialized by us */
29019+ /* clear whole send pool. sizeof is safe here (we are acx100) */
29020+ memset(adev->txdesc_start, 0, TX_CNT * sizeof(*txdesc));
29021+
29022+ /* loop over whole send pool */
29023+ for (i = 0; i < TX_CNT; i++) {
29024+ log(L_DEBUG, "configure card tx descriptor: 0x%p, "
29025+ "size: 0x%X\n", txdesc, adev->txdesc_size);
29026+
29027+ /* pointer to hostdesc memory */
29028+ txdesc->HostMemPtr = ptr2acx(hostmemptr);
29029+ /* initialise ctl */
29030+ txdesc->Ctl_8 = ( DESC_CTL_HOSTOWN | DESC_CTL_RECLAIM
29031+ | DESC_CTL_AUTODMA | DESC_CTL_FIRSTFRAG);
29032+ /* done by memset(0): txdesc->Ctl2_8 = 0; */
29033+ /* point to next txdesc */
29034+ txdesc->pNextDesc = cpu2acx(mem_offs + adev->txdesc_size);
29035+ /* reserve two (hdr desc and payload desc) */
29036+ hostdesc += 2;
29037+ hostmemptr += 2 * sizeof(*hostdesc);
29038+ /* go to the next one */
29039+ mem_offs += adev->txdesc_size;
29040+ /* ++ is safe here (we are acx100) */
29041+ txdesc++;
29042+ }
29043+ /* go back to the last one */
29044+ txdesc--;
29045+ /* and point to the first making it a ring buffer */
29046+ txdesc->pNextDesc = cpu2acx(tx_queue_start);
29047+ }
29048+ FN_EXIT0;
29049+}
29050+
29051+
29052+/***************************************************************
29053+** acxpci_create_rx_desc_queue
29054+*/
29055+static void
29056+acxpci_create_rx_desc_queue(acx_device_t *adev, u32 rx_queue_start)
29057+{
29058+ rxdesc_t *rxdesc;
29059+ u32 mem_offs;
29060+ int i;
29061+
29062+ FN_ENTER;
29063+
29064+ /* done by memset: adev->rx_tail = 0; */
29065+
29066+ /* ACX111 doesn't need any further config: preconfigures itself.
29067+ * Simply print ring buffer for debugging */
29068+ if (IS_ACX111(adev)) {
29069+ /* rxdesc_start already set here */
29070+
29071+ adev->rxdesc_start = (rxdesc_t *) ((u8 *)adev->iobase2 + rx_queue_start);
29072+
29073+ rxdesc = adev->rxdesc_start;
29074+ for (i = 0; i < RX_CNT; i++) {
29075+ log(L_DEBUG, "rx descriptor %d @ 0x%p\n", i, rxdesc);
29076+ rxdesc = adev->rxdesc_start = (rxdesc_t *)
29077+ (adev->iobase2 + acx2cpu(rxdesc->pNextDesc));
29078+ }
29079+ } else {
29080+ /* we didn't pre-calculate rxdesc_start in case of ACX100 */
29081+ /* rxdesc_start should be right AFTER Tx pool */
29082+ adev->rxdesc_start = (rxdesc_t *)
29083+ ((u8 *) adev->txdesc_start + (TX_CNT * sizeof(txdesc_t)));
29084+ /* NB: sizeof(txdesc_t) above is valid because we know
29085+ ** we are in if (acx100) block. Beware of cut-n-pasting elsewhere!
29086+ ** acx111's txdesc is larger! */
29087+
29088+ memset(adev->rxdesc_start, 0, RX_CNT * sizeof(*rxdesc));
29089+
29090+ /* loop over whole receive pool */
29091+ rxdesc = adev->rxdesc_start;
29092+ mem_offs = rx_queue_start;
29093+ for (i = 0; i < RX_CNT; i++) {
29094+ log(L_DEBUG, "rx descriptor @ 0x%p\n", rxdesc);
29095+ rxdesc->Ctl_8 = DESC_CTL_RECLAIM | DESC_CTL_AUTODMA;
29096+ /* point to next rxdesc */
29097+ rxdesc->pNextDesc = cpu2acx(mem_offs + sizeof(*rxdesc));
29098+ /* go to the next one */
29099+ mem_offs += sizeof(*rxdesc);
29100+ rxdesc++;
29101+ }
29102+ /* go to the last one */
29103+ rxdesc--;
29104+
29105+ /* and point to the first making it a ring buffer */
29106+ rxdesc->pNextDesc = cpu2acx(rx_queue_start);
29107+ }
29108+ FN_EXIT0;
29109+}
29110+
29111+
29112+/***************************************************************
29113+** acxpci_create_desc_queues
29114+*/
29115+void
29116+acxpci_create_desc_queues(acx_device_t *adev, u32 tx_queue_start, u32 rx_queue_start)
29117+{
29118+ acxpci_create_tx_desc_queue(adev, tx_queue_start);
29119+ acxpci_create_rx_desc_queue(adev, rx_queue_start);
29120+}
29121+
29122+
29123+/***************************************************************
29124+** acxpci_s_proc_diag_output
29125+*/
29126+char*
29127+acxpci_s_proc_diag_output(char *p, acx_device_t *adev)
29128+{
29129+ const char *rtl, *thd, *ttl;
29130+ rxhostdesc_t *rxhostdesc;
29131+ txdesc_t *txdesc;
29132+ int i;
29133+
29134+ FN_ENTER;
29135+
29136+ p += sprintf(p, "** Rx buf **\n");
29137+ rxhostdesc = adev->rxhostdesc_start;
29138+ if (rxhostdesc) for (i = 0; i < RX_CNT; i++) {
29139+ rtl = (i == adev->rx_tail) ? " [tail]" : "";
29140+ if ((rxhostdesc->Ctl_16 & cpu_to_le16(DESC_CTL_HOSTOWN))
29141+ && (rxhostdesc->Status & cpu_to_le32(DESC_STATUS_FULL)) )
29142+ p += sprintf(p, "%02u FULL%s\n", i, rtl);
29143+ else
29144+ p += sprintf(p, "%02u empty%s\n", i, rtl);
29145+ rxhostdesc++;
29146+ }
29147+ p += sprintf(p, "** Tx buf (free %d, Linux netqueue %s) **\n", adev->tx_free,
29148+ acx_queue_stopped(adev->ndev) ? "STOPPED" : "running");
29149+ txdesc = adev->txdesc_start;
29150+ if (txdesc) for (i = 0; i < TX_CNT; i++) {
29151+ thd = (i == adev->tx_head) ? " [head]" : "";
29152+ ttl = (i == adev->tx_tail) ? " [tail]" : "";
29153+ if (txdesc->Ctl_8 & DESC_CTL_ACXDONE)
29154+ p += sprintf(p, "%02u free (%02X)%s%s\n", i, txdesc->Ctl_8, thd, ttl);
29155+ else
29156+ p += sprintf(p, "%02u tx (%02X)%s%s\n", i, txdesc->Ctl_8, thd, ttl);
29157+ txdesc = advance_txdesc(adev, txdesc, 1);
29158+ }
29159+ p += sprintf(p,
29160+ "\n"
29161+ "** PCI data **\n"
29162+ "txbuf_start %p, txbuf_area_size %u, txbuf_startphy %08llx\n"
29163+ "txdesc_size %u, txdesc_start %p\n"
29164+ "txhostdesc_start %p, txhostdesc_area_size %u, txhostdesc_startphy %08llx\n"
29165+ "rxdesc_start %p\n"
29166+ "rxhostdesc_start %p, rxhostdesc_area_size %u, rxhostdesc_startphy %08llx\n"
29167+ "rxbuf_start %p, rxbuf_area_size %u, rxbuf_startphy %08llx\n",
29168+ adev->txbuf_start, adev->txbuf_area_size,
29169+ (unsigned long long)adev->txbuf_startphy,
29170+ adev->txdesc_size, adev->txdesc_start,
29171+ adev->txhostdesc_start, adev->txhostdesc_area_size,
29172+ (unsigned long long)adev->txhostdesc_startphy,
29173+ adev->rxdesc_start,
29174+ adev->rxhostdesc_start, adev->rxhostdesc_area_size,
29175+ (unsigned long long)adev->rxhostdesc_startphy,
29176+ adev->rxbuf_start, adev->rxbuf_area_size,
29177+ (unsigned long long)adev->rxbuf_startphy);
29178+
29179+ FN_EXIT0;
29180+ return p;
29181+}
29182+
29183+
29184+/***********************************************************************
29185+*/
29186+int
29187+acxpci_proc_eeprom_output(char *buf, acx_device_t *adev)
29188+{
29189+ char *p = buf;
29190+ int i;
29191+
29192+ FN_ENTER;
29193+
29194+ for (i = 0; i < 0x400; i++) {
29195+ acxpci_read_eeprom_byte(adev, i, p++);
29196+ }
29197+
29198+ FN_EXIT1(p - buf);
29199+ return p - buf;
29200+}
29201+
29202+
29203+/***********************************************************************
29204+*/
29205+void
29206+acxpci_set_interrupt_mask(acx_device_t *adev)
29207+{
29208+ if (IS_ACX111(adev)) {
29209+ adev->irq_mask = (u16) ~(0
29210+ /* | HOST_INT_RX_DATA */
29211+ | HOST_INT_TX_COMPLETE
29212+ /* | HOST_INT_TX_XFER */
29213+ | HOST_INT_RX_COMPLETE
29214+ /* | HOST_INT_DTIM */
29215+ /* | HOST_INT_BEACON */
29216+ /* | HOST_INT_TIMER */
29217+ /* | HOST_INT_KEY_NOT_FOUND */
29218+ | HOST_INT_IV_ICV_FAILURE
29219+ | HOST_INT_CMD_COMPLETE
29220+ | HOST_INT_INFO
29221+ /* | HOST_INT_OVERFLOW */
29222+ /* | HOST_INT_PROCESS_ERROR */
29223+ | HOST_INT_SCAN_COMPLETE
29224+ | HOST_INT_FCS_THRESHOLD
29225+ /* | HOST_INT_UNKNOWN */
29226+ );
29227+ /* Or else acx100 won't signal cmd completion, right? */
29228+ adev->irq_mask_off = (u16)~( HOST_INT_CMD_COMPLETE ); /* 0xfdff */
29229+ } else {
29230+ adev->irq_mask = (u16) ~(0
29231+ /* | HOST_INT_RX_DATA */
29232+ | HOST_INT_TX_COMPLETE
29233+ /* | HOST_INT_TX_XFER */
29234+ | HOST_INT_RX_COMPLETE
29235+ /* | HOST_INT_DTIM */
29236+ /* | HOST_INT_BEACON */
29237+ /* | HOST_INT_TIMER */
29238+ /* | HOST_INT_KEY_NOT_FOUND */
29239+ /* | HOST_INT_IV_ICV_FAILURE */
29240+ | HOST_INT_CMD_COMPLETE
29241+ | HOST_INT_INFO
29242+ /* | HOST_INT_OVERFLOW */
29243+ /* | HOST_INT_PROCESS_ERROR */
29244+ | HOST_INT_SCAN_COMPLETE
29245+ /* | HOST_INT_FCS_THRESHOLD */
29246+ /* | HOST_INT_UNKNOWN */
29247+ );
29248+ adev->irq_mask_off = (u16)~( HOST_INT_UNKNOWN ); /* 0x7fff */
29249+ }
29250+}
29251+
29252+
29253+/***********************************************************************
29254+*/
29255+int
29256+acx100pci_s_set_tx_level(acx_device_t *adev, u8 level_dbm)
29257+{
29258+ /* since it can be assumed that at least the Maxim radio has a
29259+ * maximum power output of 20dBm and since it also can be
29260+ * assumed that these values drive the DAC responsible for
29261+ * setting the linear Tx level, I'd guess that these values
29262+ * should be the corresponding linear values for a dBm value,
29263+ * in other words: calculate the values from that formula:
29264+ * Y [dBm] = 10 * log (X [mW])
29265+ * then scale the 0..63 value range onto the 1..100mW range (0..20 dBm)
29266+ * and you're done...
29267+ * Hopefully that's ok, but you never know if we're actually
29268+ * right... (especially since Windows XP doesn't seem to show
29269+ * actual Tx dBm values :-P) */
29270+
29271+ /* NOTE: on Maxim, value 30 IS 30mW, and value 10 IS 10mW - so the
29272+ * values are EXACTLY mW!!! Not sure about RFMD and others,
29273+ * though... */
29274+ static const u8 dbm2val_maxim[21] = {
29275+ 63, 63, 63, 62,
29276+ 61, 61, 60, 60,
29277+ 59, 58, 57, 55,
29278+ 53, 50, 47, 43,
29279+ 38, 31, 23, 13,
29280+ 0
29281+ };
29282+ static const u8 dbm2val_rfmd[21] = {
29283+ 0, 0, 0, 1,
29284+ 2, 2, 3, 3,
29285+ 4, 5, 6, 8,
29286+ 10, 13, 16, 20,
29287+ 25, 32, 41, 50,
29288+ 63
29289+ };
29290+ const u8 *table;
29291+
29292+ switch (adev->radio_type) {
29293+ case RADIO_MAXIM_0D:
29294+ table = &dbm2val_maxim[0];
29295+ break;
29296+ case RADIO_RFMD_11:
29297+ case RADIO_RALINK_15:
29298+ table = &dbm2val_rfmd[0];
29299+ break;
29300+ default:
29301+ printk("%s: unknown/unsupported radio type, "
29302+ "cannot modify tx power level yet!\n",
29303+ adev->ndev->name);
29304+ return NOT_OK;
29305+ }
29306+ printk("%s: changing radio power level to %u dBm (%u)\n",
29307+ adev->ndev->name, level_dbm, table[level_dbm]);
29308+ acxpci_s_write_phy_reg(adev, 0x11, table[level_dbm]);
29309+ return OK;
29310+}
29311+
29312+
29313+/***********************************************************************
29314+** Data for init_module/cleanup_module
29315+*/
29316+static const struct pci_device_id
29317+acxpci_id_tbl[] __devinitdata = {
29318+ {
29319+ .vendor = PCI_VENDOR_ID_TI,
29320+ .device = PCI_DEVICE_ID_TI_TNETW1100A,
29321+ .subvendor = PCI_ANY_ID,
29322+ .subdevice = PCI_ANY_ID,
29323+ .driver_data = CHIPTYPE_ACX100,
29324+ },
29325+ {
29326+ .vendor = PCI_VENDOR_ID_TI,
29327+ .device = PCI_DEVICE_ID_TI_TNETW1100B,
29328+ .subvendor = PCI_ANY_ID,
29329+ .subdevice = PCI_ANY_ID,
29330+ .driver_data = CHIPTYPE_ACX100,
29331+ },
29332+ {
29333+ .vendor = PCI_VENDOR_ID_TI,
29334+ .device = PCI_DEVICE_ID_TI_TNETW1130,
29335+ .subvendor = PCI_ANY_ID,
29336+ .subdevice = PCI_ANY_ID,
29337+ .driver_data = CHIPTYPE_ACX111,
29338+ },
29339+ {
29340+ .vendor = 0,
29341+ .device = 0,
29342+ .subvendor = 0,
29343+ .subdevice = 0,
29344+ .driver_data = 0,
29345+ }
29346+};
29347+
29348+MODULE_DEVICE_TABLE(pci, acxpci_id_tbl);
29349+
29350+/* FIXME: checks should be removed once driver is included in the kernel */
29351+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 11)
29352+/* pci_name() got introduced at start of 2.6.x,
29353+ * got mandatory (slot_name member removed) in 2.6.11-bk1 */
29354+#define pci_name(x) x->slot_name
29355+#endif
29356+
29357+static struct pci_driver
29358+acxpci_drv_id = {
29359+ .name = "acx_pci",
29360+ .id_table = acxpci_id_tbl,
29361+ .probe = acxpci_e_probe,
29362+ .remove = __devexit_p(acxpci_e_remove),
29363+#ifdef CONFIG_PM
29364+ .suspend = acxpci_e_suspend,
29365+ .resume = acxpci_e_resume
29366+#endif /* CONFIG_PM */
29367+};
29368+
29369+
29370+/***********************************************************************
29371+** acxpci_e_init_module
29372+**
29373+** Module initialization routine, called once at module load time
29374+*/
29375+int __init
29376+acxpci_e_init_module(void)
29377+{
29378+ int res;
29379+
29380+ FN_ENTER;
29381+
29382+#if (ACX_IO_WIDTH==32)
29383+ printk("acx: compiled to use 32bit I/O access. "
29384+ "I/O timing issues might occur, such as "
29385+ "non-working firmware upload. Report them\n");
29386+#else
29387+ printk("acx: compiled to use 16bit I/O access only "
29388+ "(compatibility mode)\n");
29389+#endif
29390+
29391+#ifdef __LITTLE_ENDIAN
29392+#define ENDIANNESS_STRING "running on a little-endian CPU\n"
29393+#else
29394+#define ENDIANNESS_STRING "running on a BIG-ENDIAN CPU\n"
29395+#endif
29396+ log(L_INIT,
29397+ ENDIANNESS_STRING
29398+ "PCI module " ACX_RELEASE " initialized, "
29399+ "waiting for cards to probe...\n"
29400+ );
29401+
29402+ res = pci_register_driver(&acxpci_drv_id);
29403+ FN_EXIT1(res);
29404+ return res;
29405+}
29406+
29407+
29408+/***********************************************************************
29409+** acxpci_e_cleanup_module
29410+**
29411+** Called at module unload time. This is our last chance to
29412+** clean up after ourselves.
29413+*/
29414+void __exit
29415+acxpci_e_cleanup_module(void)
29416+{
29417+ FN_ENTER;
29418+
29419+ pci_unregister_driver(&acxpci_drv_id);
29420+
29421+ FN_EXIT0;
29422+}
29423Index: linux-2.6.22/drivers/net/wireless/acx/rx3000_acx.c
29424===================================================================
29425--- /dev/null 1970-01-01 00:00:00.000000000 +0000
29426+++ linux-2.6.22/drivers/net/wireless/acx/rx3000_acx.c 2007-08-23 18:34:19.000000000 +0200
29427@@ -0,0 +1,110 @@
29428+/*
29429+ * WLAN (TI TNETW1100B) support in the HP iPAQ RX3000
29430+ *
29431+ * Copyright (c) 2006 SDG Systems, LLC
29432+ * Copyright (c) 2006 Roman Moravcik
29433+ *
29434+ * This file is subject to the terms and conditions of the GNU General Public
29435+ * License. See the file COPYING in the main directory of this archive for
29436+ * more details.
29437+ *
29438+ * Based on hx4700_acx.c
29439+ */
29440+
29441+
29442+#include <linux/kernel.h>
29443+#include <linux/platform_device.h>
29444+#include <linux/delay.h>
29445+#include <linux/dpm.h>
29446+#include <linux/leds.h>
29447+
29448+#include <asm/hardware.h>
29449+
29450+#include <asm/arch/regs-gpio.h>
29451+#include <linux/mfd/asic3_base.h>
29452+#include <asm/arch/rx3000.h>
29453+#include <asm/arch/rx3000-asic3.h>
29454+#include <asm/io.h>
29455+
29456+#include "acx_hw.h"
29457+
29458+extern struct platform_device s3c_device_asic3;
29459+
29460+static int rx3000_wlan_start(void)
29461+{
29462+ DPM_DEBUG("rx3000_acx: Turning on\n");
29463+ asic3_set_gpio_out_b(&s3c_device_asic3.dev, ASIC3_GPB3, ASIC3_GPB3);
29464+ mdelay(20);
29465+ asic3_set_gpio_out_c(&s3c_device_asic3.dev, ASIC3_GPC13, ASIC3_GPC13);
29466+ mdelay(20);
29467+ asic3_set_gpio_out_c(&s3c_device_asic3.dev, ASIC3_GPC11, ASIC3_GPC11);
29468+ mdelay(100);
29469+ asic3_set_gpio_out_b(&s3c_device_asic3.dev, ASIC3_GPB3, ASIC3_GPB3);
29470+ mdelay(20);
29471+ s3c2410_gpio_cfgpin(S3C2410_GPA15, S3C2410_GPA15_nGCS4);
29472+ mdelay(100);
29473+ s3c2410_gpio_setpin(S3C2410_GPA11, 0);
29474+ mdelay(50);
29475+ s3c2410_gpio_setpin(S3C2410_GPA11, 1);
29476+ led_trigger_event_shared(rx3000_radio_trig, LED_FULL);
29477+ return 0;
29478+}
29479+
29480+static int rx3000_wlan_stop(void)
29481+{
29482+ DPM_DEBUG("rx3000_acx: Turning off\n");
29483+ s3c2410_gpio_setpin(S3C2410_GPA15, 1);
29484+ s3c2410_gpio_cfgpin(S3C2410_GPA15, S3C2410_GPA15_OUT);
29485+ asic3_set_gpio_out_b(&s3c_device_asic3.dev, ASIC3_GPB3, 0);
29486+ asic3_set_gpio_out_c(&s3c_device_asic3.dev, ASIC3_GPC13, 0);
29487+ asic3_set_gpio_out_c(&s3c_device_asic3.dev, ASIC3_GPC11, 0);
29488+ led_trigger_event_shared(rx3000_radio_trig, LED_OFF);
29489+ return 0;
29490+}
29491+
29492+static struct resource acx_resources[] = {
29493+ [0] = {
29494+ .start = RX3000_PA_WLAN,
29495+ .end = RX3000_PA_WLAN + 0x20,
29496+ .flags = IORESOURCE_MEM,
29497+ },
29498+ [1] = {
29499+ .start = IRQ_EINT16,
29500+ .end = IRQ_EINT16,
29501+ .flags = IORESOURCE_IRQ,
29502+ },
29503+};
29504+
29505+static struct acx_hardware_data acx_data = {
29506+ .start_hw = rx3000_wlan_start,
29507+ .stop_hw = rx3000_wlan_stop,
29508+};
29509+
29510+static struct platform_device acx_device = {
29511+ .name = "acx-mem",
29512+ .dev = {
29513+ .platform_data = &acx_data,
29514+ },
29515+ .num_resources = ARRAY_SIZE(acx_resources),
29516+ .resource = acx_resources,
29517+};
29518+
29519+static int __init rx3000_wlan_init(void)
29520+{
29521+ printk("rx3000_wlan_init: acx-mem platform_device_register\n");
29522+ return platform_device_register(&acx_device);
29523+}
29524+
29525+
29526+static void __exit rx3000_wlan_exit(void)
29527+{
29528+ platform_device_unregister(&acx_device);
29529+}
29530+
29531+module_init(rx3000_wlan_init);
29532+module_exit(rx3000_wlan_exit);
29533+
29534+MODULE_AUTHOR("Todd Blumer <todd@sdgsystems.com>, Roman Moravcik <roman.moravcik@gmail.com>");
29535+MODULE_DESCRIPTION("WLAN driver for HP iPAQ RX3000");
29536+MODULE_LICENSE("GPL");
29537+
29538Index: linux-2.6.22/drivers/net/wireless/acx/setrate.c
29539===================================================================
29540--- /dev/null 1970-01-01 00:00:00.000000000 +0000
29541+++ linux-2.6.22/drivers/net/wireless/acx/setrate.c 2007-08-23 18:34:19.000000000 +0200
29542@@ -0,0 +1,213 @@
29543+/* TODO: stop #including, move into wireless.c
29544+ * until then, keep in sync copies in prism54/ and acx/ dirs
29545+ * code+data size: less than 1k */
29546+
29547+enum {
29548+ DOT11_RATE_1,
29549+ DOT11_RATE_2,
29550+ DOT11_RATE_5,
29551+ DOT11_RATE_11,
29552+ DOT11_RATE_22,
29553+ DOT11_RATE_33,
29554+ DOT11_RATE_6,
29555+ DOT11_RATE_9,
29556+ DOT11_RATE_12,
29557+ DOT11_RATE_18,
29558+ DOT11_RATE_24,
29559+ DOT11_RATE_36,
29560+ DOT11_RATE_48,
29561+ DOT11_RATE_54
29562+};
29563+enum {
29564+ DOT11_MOD_DBPSK,
29565+ DOT11_MOD_DQPSK,
29566+ DOT11_MOD_CCK,
29567+ DOT11_MOD_OFDM,
29568+ DOT11_MOD_CCKOFDM,
29569+ DOT11_MOD_PBCC
29570+};
29571+static const u8 ratelist[] = { 1,2,5,11,22,33,6,9,12,18,24,36,48,54 };
29572+static const u8 dot11ratebyte[] = { 1*2,2*2,11,11*2,22*2,33*2,6*2,9*2,12*2,18*2,24*2,36*2,48*2,54*2 };
29573+static const u8 default_modulation[] = {
29574+ DOT11_MOD_DBPSK,
29575+ DOT11_MOD_DQPSK,
29576+ DOT11_MOD_CCK,
29577+ DOT11_MOD_CCK,
29578+ DOT11_MOD_PBCC,
29579+ DOT11_MOD_PBCC,
29580+ DOT11_MOD_OFDM,
29581+ DOT11_MOD_OFDM,
29582+ DOT11_MOD_OFDM,
29583+ DOT11_MOD_OFDM,
29584+ DOT11_MOD_OFDM,
29585+ DOT11_MOD_OFDM,
29586+ DOT11_MOD_OFDM,
29587+ DOT11_MOD_OFDM
29588+};
29589+
29590+static /* TODO: remove 'static' when moved to wireless.c */
29591+int
29592+rate_mbit2enum(int n) {
29593+ int i=0;
29594+ while(i<sizeof(ratelist)) {
29595+ if(n==ratelist[i]) return i;
29596+ i++;
29597+ }
29598+ return -EINVAL;
29599+}
29600+
29601+static int
29602+get_modulation(int r_enum, char suffix) {
29603+ if(suffix==',' || suffix==' ' || suffix=='\0') {
29604+ /* could shorten default_mod by 8 bytes:
29605+ if(r_enum>=DOT11_RATE_6) return DOT11_MOD_OFDM; */
29606+ return default_modulation[r_enum];
29607+ }
29608+ if(suffix=='c') {
29609+ if(r_enum<DOT11_RATE_5 || r_enum>DOT11_RATE_11) return -EINVAL;
29610+ return DOT11_MOD_CCK;
29611+ }
29612+ if(suffix=='p') {
29613+ if(r_enum<DOT11_RATE_5 || r_enum>DOT11_RATE_33) return -EINVAL;
29614+ return DOT11_MOD_PBCC;
29615+ }
29616+ if(suffix=='o') {
29617+ if(r_enum<DOT11_RATE_6) return -EINVAL;
29618+ return DOT11_MOD_OFDM;
29619+ }
29620+ if(suffix=='d') {
29621+ if(r_enum<DOT11_RATE_6) return -EINVAL;
29622+ return DOT11_MOD_CCKOFDM;
29623+ }
29624+ return -EINVAL;
29625+}
29626+
29627+#ifdef UNUSED
29628+static int
29629+fill_ratevector(const char **pstr, u8 *vector, int size,
29630+ int (*supported)(int mbit, int mod, void *opaque), void *opaque, int or_mask)
29631+{
29632+ unsigned long rate_mbit;
29633+ int rate_enum,mod;
29634+ const char *str = *pstr;
29635+ char c;
29636+
29637+ do {
29638+ rate_mbit = simple_strtoul(str, (char**)&str, 10);
29639+ if(rate_mbit>INT_MAX) return -EINVAL;
29640+
29641+ rate_enum = rate_mbit2enum(rate_mbit);
29642+ if(rate_enum<0) return rate_enum;
29643+
29644+ c = *str;
29645+ mod = get_modulation(rate_enum, c);
29646+ if(mod<0) return mod;
29647+
29648+ if(c>='a' && c<='z') c = *++str;
29649+ if(c!=',' && c!=' ' && c!='\0') return -EINVAL;
29650+
29651+ if(supported) {
29652+ int r = supported(rate_mbit, mod, opaque);
29653+ if(r) return r;
29654+ }
29655+
29656+ *vector++ = dot11ratebyte[rate_enum] | or_mask;
29657+
29658+ size--;
29659+ str++;
29660+ } while(size>0 && c==',');
29661+
29662+ if(size<1) return -E2BIG;
29663+ *vector=0; /* TODO: sort, remove dups? */
29664+
29665+ *pstr = str-1;
29666+ return 0;
29667+}
29668+
29669+static /* TODO: remove 'static' when moved to wireless.c */
29670+int
29671+fill_ratevectors(const char *str, u8 *brate, u8 *orate, int size,
29672+ int (*supported)(int mbit, int mod, void *opaque), void *opaque)
29673+{
29674+ int r;
29675+
29676+ r = fill_ratevector(&str, brate, size, supported, opaque, 0x80);
29677+ if(r) return r;
29678+
29679+ orate[0] = 0;
29680+ if(*str==' ') {
29681+ str++;
29682+ r = fill_ratevector(&str, orate, size, supported, opaque, 0);
29683+ if(r) return r;
29684+ /* TODO: sanitize, e.g. remove/error on rates already in basic rate set? */
29685+ }
29686+ if(*str)
29687+ return -EINVAL;
29688+
29689+ return 0;
29690+}
29691+#endif
29692+
29693+/* TODO: use u64 masks? */
29694+
29695+static int
29696+fill_ratemask(const char **pstr, u32* mask,
29697+ int (*supported)(int mbit, int mod,void *opaque),
29698+ u32 (*gen_mask)(int mbit, int mod,void *opaque),
29699+ void *opaque)
29700+{
29701+ unsigned long rate_mbit;
29702+ int rate_enum,mod;
29703+ u32 m = 0;
29704+ const char *str = *pstr;
29705+ char c;
29706+
29707+ do {
29708+ rate_mbit = simple_strtoul(str, (char**)&str, 10);
29709+ if(rate_mbit>INT_MAX) return -EINVAL;
29710+
29711+ rate_enum = rate_mbit2enum(rate_mbit);
29712+ if(rate_enum<0) return rate_enum;
29713+
29714+ c = *str;
29715+ mod = get_modulation(rate_enum, c);
29716+ if(mod<0) return mod;
29717+
29718+ if(c>='a' && c<='z') c = *++str;
29719+ if(c!=',' && c!=' ' && c!='\0') return -EINVAL;
29720+
29721+ if(supported) {
29722+ int r = supported(rate_mbit, mod, opaque);
29723+ if(r) return r;
29724+ }
29725+
29726+ m |= gen_mask(rate_mbit, mod, opaque);
29727+ str++;
29728+ } while(c==',');
29729+
29730+ *pstr = str-1;
29731+ *mask |= m;
29732+ return 0;
29733+}
29734+
29735+static /* TODO: remove 'static' when moved to wireless.c */
29736+int
29737+fill_ratemasks(const char *str, u32 *bmask, u32 *omask,
29738+ int (*supported)(int mbit, int mod,void *opaque),
29739+ u32 (*gen_mask)(int mbit, int mod,void *opaque),
29740+ void *opaque)
29741+{
29742+ int r;
29743+
29744+ r = fill_ratemask(&str, bmask, supported, gen_mask, opaque);
29745+ if(r) return r;
29746+
29747+ if(*str==' ') {
29748+ str++;
29749+ r = fill_ratemask(&str, omask, supported, gen_mask, opaque);
29750+ if(r) return r;
29751+ }
29752+ if(*str)
29753+ return -EINVAL;
29754+ return 0;
29755+}
29756Index: linux-2.6.22/drivers/net/wireless/acx/usb.c
29757===================================================================
29758--- /dev/null 1970-01-01 00:00:00.000000000 +0000
29759+++ linux-2.6.22/drivers/net/wireless/acx/usb.c 2007-08-23 18:34:19.000000000 +0200
29760@@ -0,0 +1,1922 @@
29761+/***********************************************************************
29762+** Copyright (C) 2003 ACX100 Open Source Project
29763+**
29764+** The contents of this file are subject to the Mozilla Public
29765+** License Version 1.1 (the "License"); you may not use this file
29766+** except in compliance with the License. You may obtain a copy of
29767+** the License at http://www.mozilla.org/MPL/
29768+**
29769+** Software distributed under the License is distributed on an "AS
29770+** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
29771+** implied. See the License for the specific language governing
29772+** rights and limitations under the License.
29773+**
29774+** Alternatively, the contents of this file may be used under the
29775+** terms of the GNU Public License version 2 (the "GPL"), in which
29776+** case the provisions of the GPL are applicable instead of the
29777+** above. If you wish to allow the use of your version of this file
29778+** only under the terms of the GPL and not to allow others to use
29779+** your version of this file under the MPL, indicate your decision
29780+** by deleting the provisions above and replace them with the notice
29781+** and other provisions required by the GPL. If you do not delete
29782+** the provisions above, a recipient may use your version of this
29783+** file under either the MPL or the GPL.
29784+** ---------------------------------------------------------------------
29785+** Inquiries regarding the ACX100 Open Source Project can be
29786+** made directly to:
29787+**
29788+** acx100-users@lists.sf.net
29789+** http://acx100.sf.net
29790+** ---------------------------------------------------------------------
29791+*/
29792+
29793+/***********************************************************************
29794+** USB support for TI ACX100 based devices. Many parts are taken from
29795+** the PCI driver.
29796+**
29797+** Authors:
29798+** Martin Wawro <martin.wawro AT uni-dortmund.de>
29799+** Andreas Mohr <andi AT lisas.de>
29800+**
29801+** LOCKING
29802+** callback functions called by USB core are running in interrupt context
29803+** and thus have names with _i_.
29804+*/
29805+#define ACX_USB 1
29806+
29807+#include <linux/version.h>
29808+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18)
29809+#include <linux/config.h>
29810+#endif
29811+#include <linux/types.h>
29812+#include <linux/module.h>
29813+#include <linux/moduleparam.h>
29814+#include <linux/kernel.h>
29815+#include <linux/usb.h>
29816+#include <linux/netdevice.h>
29817+#include <linux/rtnetlink.h>
29818+#include <linux/etherdevice.h>
29819+#include <linux/wireless.h>
29820+#include <net/iw_handler.h>
29821+#include <linux/vmalloc.h>
29822+
29823+#include "acx.h"
29824+
29825+
29826+/***********************************************************************
29827+*/
29828+/* number of endpoints of an interface */
29829+#define NUM_EP(intf) (intf)->altsetting[0].desc.bNumEndpoints
29830+#define EP(intf, nr) (intf)->altsetting[0].endpoint[(nr)].desc
29831+#define GET_DEV(udev) usb_get_dev((udev))
29832+#define PUT_DEV(udev) usb_put_dev((udev))
29833+#define SET_NETDEV_OWNER(ndev, owner) /* not needed anymore ??? */
29834+
29835+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,14)
29836+/* removed in 2.6.14. We will use fake value for now */
29837+#define URB_ASYNC_UNLINK 0
29838+#endif
29839+
29840+
29841+/***********************************************************************
29842+*/
29843+/* ACX100 (TNETW1100) USB device: D-Link DWL-120+ */
29844+#define ACX100_VENDOR_ID 0x2001
29845+#define ACX100_PRODUCT_ID_UNBOOTED 0x3B01
29846+#define ACX100_PRODUCT_ID_BOOTED 0x3B00
29847+
29848+/* TNETW1450 USB devices */
29849+#define VENDOR_ID_DLINK 0x07b8 /* D-Link Corp. */
29850+#define PRODUCT_ID_WUG2400 0xb21a /* AboCom WUG2400 or SafeCom SWLUT-54125 */
29851+#define VENDOR_ID_AVM_GMBH 0x057c
29852+#define PRODUCT_ID_AVM_WLAN_USB 0x5601
29853+#define PRODUCT_ID_AVM_WLAN_USB_si 0x6201 /* "self install" named Version: driver kills kernel on inbound scans from fritz box ??? */
29854+#define VENDOR_ID_ZCOM 0x0cde
29855+#define PRODUCT_ID_ZCOM_XG750 0x0017 /* not tested yet */
29856+#define VENDOR_ID_TI 0x0451
29857+#define PRODUCT_ID_TI_UNKNOWN 0x60c5 /* not tested yet */
29858+
29859+#define ACX_USB_CTRL_TIMEOUT 5500 /* steps in ms */
29860+
29861+/* Buffer size for fw upload, same for both ACX100 USB and TNETW1450 */
29862+#define USB_RWMEM_MAXLEN 2048
29863+
29864+/* The number of bulk URBs to use */
29865+#define ACX_TX_URB_CNT 8
29866+#define ACX_RX_URB_CNT 2
29867+
29868+/* Should be sent to the bulkout endpoint */
29869+#define ACX_USB_REQ_UPLOAD_FW 0x10
29870+#define ACX_USB_REQ_ACK_CS 0x11
29871+#define ACX_USB_REQ_CMD 0x12
29872+
29873+/***********************************************************************
29874+** Prototypes
29875+*/
29876+static int acxusb_e_probe(struct usb_interface *, const struct usb_device_id *);
29877+static void acxusb_e_disconnect(struct usb_interface *);
29878+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
29879+static void acxusb_i_complete_tx(struct urb *);
29880+static void acxusb_i_complete_rx(struct urb *);
29881+#else
29882+static void acxusb_i_complete_tx(struct urb *, struct pt_regs *);
29883+static void acxusb_i_complete_rx(struct urb *, struct pt_regs *);
29884+#endif
29885+static int acxusb_e_open(struct net_device *);
29886+static int acxusb_e_close(struct net_device *);
29887+static void acxusb_i_set_rx_mode(struct net_device *);
29888+static int acxusb_boot(struct usb_device *, int is_tnetw1450, int *radio_type);
29889+
29890+static void acxusb_l_poll_rx(acx_device_t *adev, usb_rx_t* rx);
29891+
29892+static void acxusb_i_tx_timeout(struct net_device *);
29893+
29894+/* static void dump_device(struct usb_device *); */
29895+/* static void dump_device_descriptor(struct usb_device_descriptor *); */
29896+/* static void dump_config_descriptor(struct usb_config_descriptor *); */
29897+
29898+/***********************************************************************
29899+** Module Data
29900+*/
29901+#define TXBUFSIZE sizeof(usb_txbuffer_t)
29902+/*
29903+ * Now, this is just plain lying, but the device insists in giving us
29904+ * huge packets. We supply extra space after rxbuffer. Need to understand
29905+ * it better...
29906+ */
29907+#define RXBUFSIZE (sizeof(rxbuffer_t) + \
29908+ (sizeof(usb_rx_t) - sizeof(struct usb_rx_plain)))
29909+
29910+static const struct usb_device_id
29911+acxusb_ids[] = {
29912+ { USB_DEVICE(ACX100_VENDOR_ID, ACX100_PRODUCT_ID_BOOTED) },
29913+ { USB_DEVICE(ACX100_VENDOR_ID, ACX100_PRODUCT_ID_UNBOOTED) },
29914+ { USB_DEVICE(VENDOR_ID_DLINK, PRODUCT_ID_WUG2400) },
29915+ { USB_DEVICE(VENDOR_ID_AVM_GMBH, PRODUCT_ID_AVM_WLAN_USB) },
29916+ { USB_DEVICE(VENDOR_ID_AVM_GMBH, PRODUCT_ID_AVM_WLAN_USB_si) },
29917+ { USB_DEVICE(VENDOR_ID_ZCOM, PRODUCT_ID_ZCOM_XG750) },
29918+ { USB_DEVICE(VENDOR_ID_TI, PRODUCT_ID_TI_UNKNOWN) },
29919+ {}
29920+};
29921+
29922+MODULE_DEVICE_TABLE(usb, acxusb_ids);
29923+
29924+/* USB driver data structure as required by the kernel's USB core */
29925+static struct usb_driver
29926+acxusb_driver = {
29927+ .name = "acx_usb",
29928+ .probe = acxusb_e_probe,
29929+ .disconnect = acxusb_e_disconnect,
29930+ .id_table = acxusb_ids
29931+};
29932+
29933+
29934+/***********************************************************************
29935+** USB helper
29936+**
29937+** ldd3 ch13 says:
29938+** When the function is usb_kill_urb, the urb lifecycle is stopped. This
29939+** function is usually used when the device is disconnected from the system,
29940+** in the disconnect callback. For some drivers, the usb_unlink_urb function
29941+** should be used to tell the USB core to stop an urb. This function does not
29942+** wait for the urb to be fully stopped before returning to the caller.
29943+** This is useful for stoppingthe urb while in an interrupt handler or when
29944+** a spinlock is held, as waiting for a urb to fully stop requires the ability
29945+** for the USB core to put the calling process to sleep. This function requires
29946+** that the URB_ASYNC_UNLINK flag value be set in the urb that is being asked
29947+** to be stopped in order to work properly.
29948+**
29949+** (URB_ASYNC_UNLINK is obsolete, usb_unlink_urb will always be
29950+** asynchronous while usb_kill_urb is synchronous and should be called
29951+** directly (drivers/usb/core/urb.c))
29952+**
29953+** In light of this, timeout is just for paranoid reasons...
29954+*
29955+* Actually, it's useful for debugging. If we reach timeout, we're doing
29956+* something wrong with the urbs.
29957+*/
29958+static void
29959+acxusb_unlink_urb(struct urb* urb)
29960+{
29961+ if (!urb)
29962+ return;
29963+
29964+ if (urb->status == -EINPROGRESS) {
29965+ int timeout = 10;
29966+
29967+ usb_unlink_urb(urb);
29968+ while (--timeout && urb->status == -EINPROGRESS) {
29969+ mdelay(1);
29970+ }
29971+ if (!timeout) {
29972+ printk("acx_usb: urb unlink timeout!\n");
29973+ }
29974+ }
29975+}
29976+
29977+
29978+/***********************************************************************
29979+** EEPROM and PHY read/write helpers
29980+*/
29981+/***********************************************************************
29982+** acxusb_s_read_phy_reg
29983+*/
29984+int
29985+acxusb_s_read_phy_reg(acx_device_t *adev, u32 reg, u8 *charbuf)
29986+{
29987+ /* mem_read_write_t mem; */
29988+
29989+ FN_ENTER;
29990+
29991+ printk("%s doesn't seem to work yet, disabled.\n", __func__);
29992+
29993+ /*
29994+ mem.addr = cpu_to_le16(reg);
29995+ mem.type = cpu_to_le16(0x82);
29996+ mem.len = cpu_to_le32(4);
29997+ acx_s_issue_cmd(adev, ACX1xx_CMD_MEM_READ, &mem, sizeof(mem));
29998+ *charbuf = mem.data;
29999+ log(L_DEBUG, "read radio PHY[0x%04X]=0x%02X\n", reg, *charbuf);
30000+ */
30001+
30002+ FN_EXIT1(OK);
30003+ return OK;
30004+}
30005+
30006+
30007+/***********************************************************************
30008+*/
30009+int
30010+acxusb_s_write_phy_reg(acx_device_t *adev, u32 reg, u8 value)
30011+{
30012+ mem_read_write_t mem;
30013+
30014+ FN_ENTER;
30015+
30016+ mem.addr = cpu_to_le16(reg);
30017+ mem.type = cpu_to_le16(0x82);
30018+ mem.len = cpu_to_le32(4);
30019+ mem.data = value;
30020+ acx_s_issue_cmd(adev, ACX1xx_CMD_MEM_WRITE, &mem, sizeof(mem));
30021+ log(L_DEBUG, "write radio PHY[0x%04X]=0x%02X\n", reg, value);
30022+
30023+ FN_EXIT1(OK);
30024+ return OK;
30025+}
30026+
30027+
30028+/***********************************************************************
30029+** acxusb_s_issue_cmd_timeo
30030+** Excecutes a command in the command mailbox
30031+**
30032+** buffer = a pointer to the data.
30033+** The data must not include 4 byte command header
30034+*/
30035+
30036+/* TODO: ideally we shall always know how much we need
30037+** and this shall be 0 */
30038+#define BOGUS_SAFETY_PADDING 0x40
30039+
30040+#undef FUNC
30041+#define FUNC "issue_cmd"
30042+
30043+#if !ACX_DEBUG
30044+int
30045+acxusb_s_issue_cmd_timeo(
30046+ acx_device_t *adev,
30047+ unsigned cmd,
30048+ void *buffer,
30049+ unsigned buflen,
30050+ unsigned timeout)
30051+{
30052+#else
30053+int
30054+acxusb_s_issue_cmd_timeo_debug(
30055+ acx_device_t *adev,
30056+ unsigned cmd,
30057+ void *buffer,
30058+ unsigned buflen,
30059+ unsigned timeout,
30060+ const char* cmdstr)
30061+{
30062+#endif
30063+ /* USB ignores timeout param */
30064+
30065+ struct usb_device *usbdev;
30066+ struct {
30067+ u16 cmd;
30068+ u16 status;
30069+ u8 data[1];
30070+ } ACX_PACKED *loc;
30071+ const char *devname;
30072+ int acklen, blocklen, inpipe, outpipe;
30073+ int cmd_status;
30074+ int result;
30075+
30076+ FN_ENTER;
30077+
30078+ devname = adev->ndev->name;
30079+ /* no "wlan%%d: ..." please */
30080+ if (!devname || !devname[0] || devname[4]=='%')
30081+ devname = "acx";
30082+
30083+ log(L_CTL, FUNC"(cmd:%s,buflen:%u,type:0x%04X)\n",
30084+ cmdstr, buflen,
30085+ buffer ? le16_to_cpu(((acx_ie_generic_t *)buffer)->type) : -1);
30086+
30087+ loc = kmalloc(buflen + 4 + BOGUS_SAFETY_PADDING, GFP_KERNEL);
30088+ if (!loc) {
30089+ printk("%s: "FUNC"(): no memory for data buffer\n", devname);
30090+ goto bad;
30091+ }
30092+
30093+ /* get context from acx_device */
30094+ usbdev = adev->usbdev;
30095+
30096+ /* check which kind of command was issued */
30097+ loc->cmd = cpu_to_le16(cmd);
30098+ loc->status = 0;
30099+
30100+/* NB: buflen == frmlen + 4
30101+**
30102+** Interrogate: write 8 bytes: (cmd,status,rid,frmlen), then
30103+** read (cmd,status,rid,frmlen,data[frmlen]) back
30104+**
30105+** Configure: write (cmd,status,rid,frmlen,data[frmlen])
30106+**
30107+** Possibly bogus special handling of ACX1xx_IE_SCAN_STATUS removed
30108+*/
30109+
30110+ /* now write the parameters of the command if needed */
30111+ acklen = buflen + 4 + BOGUS_SAFETY_PADDING;
30112+ blocklen = buflen;
30113+ if (buffer && buflen) {
30114+ /* if it's an INTERROGATE command, just pass the length
30115+ * of parameters to read, as data */
30116+ if (cmd == ACX1xx_CMD_INTERROGATE) {
30117+ blocklen = 4;
30118+ acklen = buflen + 4;
30119+ }
30120+ memcpy(loc->data, buffer, blocklen);
30121+ }
30122+ blocklen += 4; /* account for cmd,status */
30123+
30124+ /* obtain the I/O pipes */
30125+ outpipe = usb_sndctrlpipe(usbdev, 0);
30126+ inpipe = usb_rcvctrlpipe(usbdev, 0);
30127+ log(L_CTL, "ctrl inpipe=0x%X outpipe=0x%X\n", inpipe, outpipe);
30128+ log(L_CTL, "sending USB control msg (out) (blocklen=%d)\n", blocklen);
30129+ if (acx_debug & L_DATA)
30130+ acx_dump_bytes(loc, blocklen);
30131+
30132+ result = usb_control_msg(usbdev, outpipe,
30133+ ACX_USB_REQ_CMD, /* request */
30134+ USB_TYPE_VENDOR|USB_DIR_OUT, /* requesttype */
30135+ 0, /* value */
30136+ 0, /* index */
30137+ loc, /* dataptr */
30138+ blocklen, /* size */
30139+ ACX_USB_CTRL_TIMEOUT /* timeout in ms */
30140+ );
30141+
30142+ if (result == -ENODEV) {
30143+ log(L_CTL, "no device present (unplug?)\n");
30144+ goto good;
30145+ }
30146+
30147+ log(L_CTL, "wrote %d bytes\n", result);
30148+ if (result < 0) {
30149+ goto bad;
30150+ }
30151+
30152+ /* check for device acknowledge */
30153+ log(L_CTL, "sending USB control msg (in) (acklen=%d)\n", acklen);
30154+ loc->status = 0; /* delete old status flag -> set to IDLE */
30155+ /* shall we zero out the rest? */
30156+ result = usb_control_msg(usbdev, inpipe,
30157+ ACX_USB_REQ_CMD, /* request */
30158+ USB_TYPE_VENDOR|USB_DIR_IN, /* requesttype */
30159+ 0, /* value */
30160+ 0, /* index */
30161+ loc, /* dataptr */
30162+ acklen, /* size */
30163+ ACX_USB_CTRL_TIMEOUT /* timeout in ms */
30164+ );
30165+ if (result < 0) {
30166+ printk("%s: "FUNC"(): USB read error %d\n", devname, result);
30167+ goto bad;
30168+ }
30169+ if (acx_debug & L_CTL) {
30170+ printk("read %d bytes: ", result);
30171+ acx_dump_bytes(loc, result);
30172+ }
30173+
30174+/*
30175+ check for result==buflen+4? Was seen:
30176+
30177+interrogate(type:ACX100_IE_DOT11_ED_THRESHOLD,len:4)
30178+issue_cmd(cmd:ACX1xx_CMD_INTERROGATE,buflen:8,type:4111)
30179+ctrl inpipe=0x80000280 outpipe=0x80000200
30180+sending USB control msg (out) (blocklen=8)
30181+01 00 00 00 0F 10 04 00
30182+wrote 8 bytes
30183+sending USB control msg (in) (acklen=12) sizeof(loc->data
30184+read 4 bytes <==== MUST BE 12!!
30185+*/
30186+
30187+ cmd_status = le16_to_cpu(loc->status);
30188+ if (cmd_status != 1) {
30189+ printk("%s: "FUNC"(): cmd_status is not SUCCESS: %d (%s)\n",
30190+ devname, cmd_status, acx_cmd_status_str(cmd_status));
30191+ /* TODO: goto bad; ? */
30192+ }
30193+ if ((cmd == ACX1xx_CMD_INTERROGATE) && buffer && buflen) {
30194+ memcpy(buffer, loc->data, buflen);
30195+ log(L_CTL, "response frame: cmd=0x%04X status=%d\n",
30196+ le16_to_cpu(loc->cmd),
30197+ cmd_status);
30198+ }
30199+good:
30200+ kfree(loc);
30201+ FN_EXIT1(OK);
30202+ return OK;
30203+bad:
30204+ /* Give enough info so that callers can avoid
30205+ ** printing their own diagnostic messages */
30206+#if ACX_DEBUG
30207+ printk("%s: "FUNC"(cmd:%s) FAILED\n", devname, cmdstr);
30208+#else
30209+ printk("%s: "FUNC"(cmd:0x%04X) FAILED\n", devname, cmd);
30210+#endif
30211+ dump_stack();
30212+ kfree(loc);
30213+ FN_EXIT1(NOT_OK);
30214+ return NOT_OK;
30215+}
30216+
30217+
30218+/***********************************************************************
30219+** acxusb_boot()
30220+** Inputs:
30221+** usbdev -> Pointer to kernel's usb_device structure
30222+**
30223+** Returns:
30224+** (int) Errorcode or 0 on success
30225+**
30226+** This function triggers the loading of the firmware image from harddisk
30227+** and then uploads the firmware to the USB device. After uploading the
30228+** firmware and transmitting the checksum, the device resets and appears
30229+** as a new device on the USB bus (the device we can finally deal with)
30230+*/
30231+static inline int
30232+acxusb_fw_needs_padding(firmware_image_t *fw_image, unsigned int usb_maxlen)
30233+{
30234+ unsigned int num_xfers = ((fw_image->size - 1) / usb_maxlen) + 1;
30235+
30236+ return ((num_xfers % 2) == 0);
30237+}
30238+
30239+static int
30240+acxusb_boot(struct usb_device *usbdev, int is_tnetw1450, int *radio_type)
30241+{
30242+ char filename[sizeof("tiacx1NNusbcRR")];
30243+
30244+ firmware_image_t *fw_image = NULL;
30245+ char *usbbuf;
30246+ unsigned int offset;
30247+ unsigned int blk_len, inpipe, outpipe;
30248+ u32 num_processed;
30249+ u32 img_checksum, sum;
30250+ u32 file_size;
30251+ int result = -EIO;
30252+ int i;
30253+
30254+ FN_ENTER;
30255+
30256+ /* dump_device(usbdev); */
30257+
30258+ usbbuf = kmalloc(USB_RWMEM_MAXLEN, GFP_KERNEL);
30259+ if (!usbbuf) {
30260+ printk(KERN_ERR "acx: no memory for USB transfer buffer (%d bytes)\n", USB_RWMEM_MAXLEN);
30261+ result = -ENOMEM;
30262+ goto end;
30263+ }
30264+ if (is_tnetw1450) {
30265+ /* Obtain the I/O pipes */
30266+ outpipe = usb_sndbulkpipe(usbdev, 1);
30267+ inpipe = usb_rcvbulkpipe(usbdev, 2);
30268+
30269+ printk(KERN_DEBUG "wait for device ready\n");
30270+ for (i = 0; i <= 2; i++) {
30271+ result = usb_bulk_msg(usbdev, inpipe,
30272+ usbbuf,
30273+ USB_RWMEM_MAXLEN,
30274+ &num_processed,
30275+ 2000
30276+ );
30277+
30278+ if ((*(u32 *)&usbbuf[4] == 0x40000001)
30279+ && (*(u16 *)&usbbuf[2] == 0x1)
30280+ && ((*(u16 *)usbbuf & 0x3fff) == 0)
30281+ && ((*(u16 *)usbbuf & 0xc000) == 0xc000))
30282+ break;
30283+ msleep(10);
30284+ }
30285+ if (i == 2)
30286+ goto fw_end;
30287+
30288+ *radio_type = usbbuf[8];
30289+ } else {
30290+ /* Obtain the I/O pipes */
30291+ outpipe = usb_sndctrlpipe(usbdev, 0);
30292+ inpipe = usb_rcvctrlpipe(usbdev, 0);
30293+
30294+ /* FIXME: shouldn't be hardcoded */
30295+ *radio_type = RADIO_MAXIM_0D;
30296+ }
30297+
30298+ snprintf(filename, sizeof(filename), "tiacx1%02dusbc%02X",
30299+ is_tnetw1450 * 11, *radio_type);
30300+
30301+ fw_image = acx_s_read_fw(&usbdev->dev, filename, &file_size);
30302+ if (!fw_image) {
30303+ result = -EIO;
30304+ goto end;
30305+ }
30306+ log(L_INIT, "firmware size: %d bytes\n", file_size);
30307+
30308+ img_checksum = le32_to_cpu(fw_image->chksum);
30309+
30310+ if (is_tnetw1450) {
30311+ u8 cmdbuf[20];
30312+ const u8 *p;
30313+ u8 need_padding;
30314+ u32 tmplen, val;
30315+
30316+ memset(cmdbuf, 0, 16);
30317+
30318+ need_padding = acxusb_fw_needs_padding(fw_image, USB_RWMEM_MAXLEN);
30319+ tmplen = need_padding ? file_size-4 : file_size-8;
30320+ *(u16 *)&cmdbuf[0] = 0xc000;
30321+ *(u16 *)&cmdbuf[2] = 0x000b;
30322+ *(u32 *)&cmdbuf[4] = tmplen;
30323+ *(u32 *)&cmdbuf[8] = file_size-8;
30324+ *(u32 *)&cmdbuf[12] = img_checksum;
30325+
30326+ result = usb_bulk_msg(usbdev, outpipe, cmdbuf, 16, &num_processed, HZ);
30327+ if (result < 0)
30328+ goto fw_end;
30329+
30330+ p = (const u8 *)&fw_image->size;
30331+
30332+ /* first calculate checksum for image size part */
30333+ sum = p[0]+p[1]+p[2]+p[3];
30334+ p += 4;
30335+
30336+ /* now continue checksum for firmware data part */
30337+ tmplen = le32_to_cpu(fw_image->size);
30338+ for (i = 0; i < tmplen /* image size */; i++) {
30339+ sum += *p++;
30340+ }
30341+
30342+ if (sum != le32_to_cpu(fw_image->chksum)) {
30343+ printk("acx: FATAL: firmware upload: "
30344+ "checksums don't match! "
30345+ "(0x%08x vs. 0x%08x)\n",
30346+ sum, fw_image->chksum);
30347+ goto fw_end;
30348+ }
30349+
30350+ offset = 8;
30351+ while (offset < file_size) {
30352+ blk_len = file_size - offset;
30353+ if (blk_len > USB_RWMEM_MAXLEN) {
30354+ blk_len = USB_RWMEM_MAXLEN;
30355+ }
30356+
30357+ log(L_INIT, "uploading firmware (%d bytes, offset=%d)\n",
30358+ blk_len, offset);
30359+ memcpy(usbbuf, ((u8 *)fw_image) + offset, blk_len);
30360+
30361+ p = usbbuf;
30362+ for (i = 0; i < blk_len; i += 4) {
30363+ *(u32 *)p = be32_to_cpu(*(u32 *)p);
30364+ p += 4;
30365+ }
30366+
30367+ result = usb_bulk_msg(usbdev, outpipe, usbbuf, blk_len, &num_processed, HZ);
30368+ if ((result < 0) || (num_processed != blk_len))
30369+ goto fw_end;
30370+ offset += blk_len;
30371+ }
30372+ if (need_padding) {
30373+ printk(KERN_DEBUG "send padding\n");
30374+ memset(usbbuf, 0, 4);
30375+ result = usb_bulk_msg(usbdev, outpipe, usbbuf, 4, &num_processed, HZ);
30376+ if ((result < 0) || (num_processed != 4))
30377+ goto fw_end;
30378+ }
30379+ printk(KERN_DEBUG "read firmware upload result\n");
30380+ memset(cmdbuf, 0, 20); /* additional memset */
30381+ result = usb_bulk_msg(usbdev, inpipe, cmdbuf, 20, &num_processed, 2000);
30382+ if (result < 0)
30383+ goto fw_end;
30384+ if (*(u32 *)&cmdbuf[4] == 0x40000003)
30385+ goto fw_end;
30386+ if (*(u32 *)&cmdbuf[4])
30387+ goto fw_end;
30388+ if (*(u16 *)&cmdbuf[16] != 1)
30389+ goto fw_end;
30390+
30391+ val = *(u32 *)&cmdbuf[0];
30392+ if ((val & 0x3fff)
30393+ || ((val & 0xc000) != 0xc000))
30394+ goto fw_end;
30395+
30396+ val = *(u32 *)&cmdbuf[8];
30397+ if (val & 2) {
30398+ result = usb_bulk_msg(usbdev, inpipe, cmdbuf, 20, &num_processed, 2000);
30399+ if (result < 0)
30400+ goto fw_end;
30401+ val = *(u32 *)&cmdbuf[8];
30402+ }
30403+ /* yup, no "else" here! */
30404+ if (val & 1) {
30405+ memset(usbbuf, 0, 4);
30406+ result = usb_bulk_msg(usbdev, outpipe, usbbuf, 4, &num_processed, HZ);
30407+ if ((result < 0) || (!num_processed))
30408+ goto fw_end;
30409+ }
30410+
30411+ printk("TNETW1450 firmware upload successful!\n");
30412+ result = 0;
30413+ goto end;
30414+fw_end:
30415+ result = -EIO;
30416+ goto end;
30417+ } else {
30418+ /* ACX100 USB */
30419+
30420+ /* now upload the firmware, slice the data into blocks */
30421+ offset = 8;
30422+ while (offset < file_size) {
30423+ blk_len = file_size - offset;
30424+ if (blk_len > USB_RWMEM_MAXLEN) {
30425+ blk_len = USB_RWMEM_MAXLEN;
30426+ }
30427+ log(L_INIT, "uploading firmware (%d bytes, offset=%d)\n",
30428+ blk_len, offset);
30429+ memcpy(usbbuf, ((u8 *)fw_image) + offset, blk_len);
30430+ result = usb_control_msg(usbdev, outpipe,
30431+ ACX_USB_REQ_UPLOAD_FW,
30432+ USB_TYPE_VENDOR|USB_DIR_OUT,
30433+ (file_size - 8) & 0xffff, /* value */
30434+ (file_size - 8) >> 16, /* index */
30435+ usbbuf, /* dataptr */
30436+ blk_len, /* size */
30437+ 3000 /* timeout in ms */
30438+ );
30439+ offset += blk_len;
30440+ if (result < 0) {
30441+ printk(KERN_ERR "acx: error %d during upload "
30442+ "of firmware, aborting\n", result);
30443+ goto end;
30444+ }
30445+ }
30446+
30447+ /* finally, send the checksum and reboot the device */
30448+ /* does this trigger the reboot? */
30449+ result = usb_control_msg(usbdev, outpipe,
30450+ ACX_USB_REQ_UPLOAD_FW,
30451+ USB_TYPE_VENDOR|USB_DIR_OUT,
30452+ img_checksum & 0xffff, /* value */
30453+ img_checksum >> 16, /* index */
30454+ NULL, /* dataptr */
30455+ 0, /* size */
30456+ 3000 /* timeout in ms */
30457+ );
30458+ if (result < 0) {
30459+ printk(KERN_ERR "acx: error %d during tx of checksum, "
30460+ "aborting\n", result);
30461+ goto end;
30462+ }
30463+ result = usb_control_msg(usbdev, inpipe,
30464+ ACX_USB_REQ_ACK_CS,
30465+ USB_TYPE_VENDOR|USB_DIR_IN,
30466+ img_checksum & 0xffff, /* value */
30467+ img_checksum >> 16, /* index */
30468+ usbbuf, /* dataptr */
30469+ 8, /* size */
30470+ 3000 /* timeout in ms */
30471+ );
30472+ if (result < 0) {
30473+ printk(KERN_ERR "acx: error %d during ACK of checksum, "
30474+ "aborting\n", result);
30475+ goto end;
30476+ }
30477+ if (*usbbuf != 0x10) {
30478+ printk(KERN_ERR "acx: invalid checksum?\n");
30479+ result = -EINVAL;
30480+ goto end;
30481+ }
30482+ result = 0;
30483+ }
30484+
30485+end:
30486+ vfree(fw_image);
30487+ kfree(usbbuf);
30488+
30489+ FN_EXIT1(result);
30490+ return result;
30491+}
30492+
30493+
30494+/* FIXME: maybe merge it with usual eeprom reading, into common code? */
30495+static void
30496+acxusb_s_read_eeprom_version(acx_device_t *adev)
30497+{
30498+ u8 eeprom_ver[0x8];
30499+
30500+ memset(eeprom_ver, 0, sizeof(eeprom_ver));
30501+ acx_s_interrogate(adev, &eeprom_ver, ACX1FF_IE_EEPROM_VER);
30502+
30503+ /* FIXME: which one of those values to take? */
30504+ adev->eeprom_version = eeprom_ver[5];
30505+}
30506+
30507+
30508+/*
30509+ * temporary helper function to at least fill important cfgopt members with
30510+ * useful replacement values until we figure out how one manages to fetch
30511+ * the configoption struct in the USB device case...
30512+ */
30513+static int
30514+acxusb_s_fill_configoption(acx_device_t *adev)
30515+{
30516+ adev->cfgopt_probe_delay = 200;
30517+ adev->cfgopt_dot11CCAModes = 4;
30518+ adev->cfgopt_dot11Diversity = 1;
30519+ adev->cfgopt_dot11ShortPreambleOption = 1;
30520+ adev->cfgopt_dot11PBCCOption = 1;
30521+ adev->cfgopt_dot11ChannelAgility = 0;
30522+ adev->cfgopt_dot11PhyType = 5;
30523+ adev->cfgopt_dot11TempType = 1;
30524+ return OK;
30525+}
30526+
30527+
30528+/***********************************************************************
30529+** acxusb_e_probe()
30530+**
30531+** This function is invoked by the kernel's USB core whenever a new device is
30532+** attached to the system or the module is loaded. It is presented a usb_device
30533+** structure from which information regarding the device is obtained and evaluated.
30534+** In case this driver is able to handle one of the offered devices, it returns
30535+** a non-null pointer to a driver context and thereby claims the device.
30536+*/
30537+
30538+static void
30539+dummy_netdev_init(struct net_device *ndev) {}
30540+
30541+static int
30542+acxusb_e_probe(struct usb_interface *intf, const struct usb_device_id *devID)
30543+{
30544+ struct usb_device *usbdev = interface_to_usbdev(intf);
30545+ acx_device_t *adev = NULL;
30546+ struct net_device *ndev = NULL;
30547+ struct usb_config_descriptor *config;
30548+ struct usb_endpoint_descriptor *epdesc;
30549+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
30550+ struct usb_host_endpoint *ep;
30551+#endif
30552+ struct usb_interface_descriptor *ifdesc;
30553+ const char* msg;
30554+ int numconfigs, numfaces, numep;
30555+ int result = OK;
30556+ int i;
30557+ int radio_type;
30558+ /* this one needs to be more precise in case there appears a TNETW1450 from the same vendor */
30559+ int is_tnetw1450 = (usbdev->descriptor.idVendor != ACX100_VENDOR_ID);
30560+
30561+ FN_ENTER;
30562+
30563+ if (is_tnetw1450) {
30564+ /* Boot the device (i.e. upload the firmware) */
30565+ acxusb_boot(usbdev, is_tnetw1450, &radio_type);
30566+
30567+ /* TNETW1450-based cards will continue right away with
30568+ * the same USB ID after booting */
30569+ } else {
30570+ /* First check if this is the "unbooted" hardware */
30571+ if (usbdev->descriptor.idProduct == ACX100_PRODUCT_ID_UNBOOTED) {
30572+
30573+ /* Boot the device (i.e. upload the firmware) */
30574+ acxusb_boot(usbdev, is_tnetw1450, &radio_type);
30575+
30576+ /* DWL-120+ will first boot the firmware,
30577+ * then later have a *separate* probe() run
30578+ * since its USB ID will have changed after
30579+ * firmware boot!
30580+ * Since the first probe() run has no
30581+ * other purpose than booting the firmware,
30582+ * simply return immediately.
30583+ */
30584+ log(L_INIT, "finished booting, returning from probe()\n");
30585+ result = OK; /* success */
30586+ goto end;
30587+ }
30588+ else
30589+ /* device not unbooted, but invalid USB ID!? */
30590+ if (usbdev->descriptor.idProduct != ACX100_PRODUCT_ID_BOOTED)
30591+ goto end_nodev;
30592+ }
30593+
30594+/* Ok, so it's our device and it has already booted */
30595+
30596+ /* Allocate memory for a network device */
30597+
30598+ ndev = alloc_netdev(sizeof(*adev), "wlan%d", dummy_netdev_init);
30599+ /* (NB: memsets to 0 entire area) */
30600+ if (!ndev) {
30601+ msg = "acx: no memory for netdev\n";
30602+ goto end_nomem;
30603+ }
30604+
30605+ /* Register the callbacks for the network device functions */
30606+
30607+ ether_setup(ndev);
30608+ ndev->open = &acxusb_e_open;
30609+ ndev->stop = &acxusb_e_close;
30610+ ndev->hard_start_xmit = (void *)&acx_i_start_xmit;
30611+ ndev->get_stats = (void *)&acx_e_get_stats;
30612+#if IW_HANDLER_VERSION <= 5
30613+ ndev->get_wireless_stats = (void *)&acx_e_get_wireless_stats;
30614+#endif
30615+ ndev->wireless_handlers = (struct iw_handler_def *)&acx_ioctl_handler_def;
30616+ ndev->set_multicast_list = (void *)&acxusb_i_set_rx_mode;
30617+#ifdef HAVE_TX_TIMEOUT
30618+ ndev->tx_timeout = &acxusb_i_tx_timeout;
30619+ ndev->watchdog_timeo = 4 * HZ;
30620+#endif
30621+ ndev->change_mtu = &acx_e_change_mtu;
30622+ SET_MODULE_OWNER(ndev);
30623+
30624+ /* Setup private driver context */
30625+
30626+ adev = ndev2adev(ndev);
30627+ adev->ndev = ndev;
30628+
30629+ adev->dev_type = DEVTYPE_USB;
30630+ adev->radio_type = radio_type;
30631+ if (is_tnetw1450) {
30632+ /* well, actually it's a TNETW1450, but since it
30633+ * seems to be sufficiently similar to TNETW1130,
30634+ * I don't want to change large amounts of code now */
30635+ adev->chip_type = CHIPTYPE_ACX111;
30636+ } else {
30637+ adev->chip_type = CHIPTYPE_ACX100;
30638+ }
30639+
30640+ adev->usbdev = usbdev;
30641+ spin_lock_init(&adev->lock); /* initial state: unlocked */
30642+ sema_init(&adev->sem, 1); /* initial state: 1 (upped) */
30643+
30644+ /* Check that this is really the hardware we know about.
30645+ ** If not sure, at least notify the user that he
30646+ ** may be in trouble...
30647+ */
30648+ numconfigs = (int)usbdev->descriptor.bNumConfigurations;
30649+ if (numconfigs != 1)
30650+ printk("acx: number of configurations is %d, "
30651+ "this driver only knows how to handle 1, "
30652+ "be prepared for surprises\n", numconfigs);
30653+
30654+ config = &usbdev->config->desc;
30655+ numfaces = config->bNumInterfaces;
30656+ if (numfaces != 1)
30657+ printk("acx: number of interfaces is %d, "
30658+ "this driver only knows how to handle 1, "
30659+ "be prepared for surprises\n", numfaces);
30660+
30661+ ifdesc = &intf->altsetting->desc;
30662+ numep = ifdesc->bNumEndpoints;
30663+ log(L_DEBUG, "# of endpoints: %d\n", numep);
30664+
30665+ if (is_tnetw1450) {
30666+ adev->bulkoutep = 1;
30667+ adev->bulkinep = 2;
30668+ } else {
30669+ /* obtain information about the endpoint
30670+ ** addresses, begin with some default values
30671+ */
30672+ adev->bulkoutep = 1;
30673+ adev->bulkinep = 1;
30674+ for (i = 0; i < numep; i++) {
30675+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
30676+ ep = usbdev->ep_in[i];
30677+ if (!ep)
30678+ continue;
30679+ epdesc = &ep->desc;
30680+#else
30681+ epdesc = usb_epnum_to_ep_desc(usbdev, i);
30682+ if (!epdesc)
30683+ continue;
30684+#endif
30685+ if (epdesc->bmAttributes & USB_ENDPOINT_XFER_BULK) {
30686+ if (epdesc->bEndpointAddress & 0x80)
30687+ adev->bulkinep = epdesc->bEndpointAddress & 0xF;
30688+ else
30689+ adev->bulkoutep = epdesc->bEndpointAddress & 0xF;
30690+ }
30691+ }
30692+ }
30693+ log(L_DEBUG, "bulkout ep: 0x%X\n", adev->bulkoutep);
30694+ log(L_DEBUG, "bulkin ep: 0x%X\n", adev->bulkinep);
30695+
30696+ /* already done by memset: adev->rxtruncsize = 0; */
30697+ log(L_DEBUG, "TXBUFSIZE=%d RXBUFSIZE=%d\n",
30698+ (int) TXBUFSIZE, (int) RXBUFSIZE);
30699+
30700+ /* Allocate the RX/TX containers. */
30701+ adev->usb_tx = kmalloc(sizeof(usb_tx_t) * ACX_TX_URB_CNT, GFP_KERNEL);
30702+ if (!adev->usb_tx) {
30703+ msg = "acx: no memory for tx container";
30704+ goto end_nomem;
30705+ }
30706+ adev->usb_rx = kmalloc(sizeof(usb_rx_t) * ACX_RX_URB_CNT, GFP_KERNEL);
30707+ if (!adev->usb_rx) {
30708+ msg = "acx: no memory for rx container";
30709+ goto end_nomem;
30710+ }
30711+
30712+ /* Setup URBs for bulk-in/out messages */
30713+ for (i = 0; i < ACX_RX_URB_CNT; i++) {
30714+ adev->usb_rx[i].urb = usb_alloc_urb(0, GFP_KERNEL);
30715+ if (!adev->usb_rx[i].urb) {
30716+ msg = "acx: no memory for input URB\n";
30717+ goto end_nomem;
30718+ }
30719+ adev->usb_rx[i].urb->status = 0;
30720+ adev->usb_rx[i].adev = adev;
30721+ adev->usb_rx[i].busy = 0;
30722+ }
30723+
30724+ for (i = 0; i< ACX_TX_URB_CNT; i++) {
30725+ adev->usb_tx[i].urb = usb_alloc_urb(0, GFP_KERNEL);
30726+ if (!adev->usb_tx[i].urb) {
30727+ msg = "acx: no memory for output URB\n";
30728+ goto end_nomem;
30729+ }
30730+ adev->usb_tx[i].urb->status = 0;
30731+ adev->usb_tx[i].adev = adev;
30732+ adev->usb_tx[i].busy = 0;
30733+ }
30734+ adev->tx_free = ACX_TX_URB_CNT;
30735+
30736+ usb_set_intfdata(intf, adev);
30737+ SET_NETDEV_DEV(ndev, &intf->dev);
30738+
30739+ /* TODO: move all of fw cmds to open()? But then we won't know our MAC addr
30740+ until ifup (it's available via reading ACX1xx_IE_DOT11_STATION_ID)... */
30741+
30742+ /* put acx out of sleep mode and initialize it */
30743+ acx_s_issue_cmd(adev, ACX1xx_CMD_WAKE, NULL, 0);
30744+
30745+ result = acx_s_init_mac(adev);
30746+ if (result)
30747+ goto end;
30748+
30749+ /* TODO: see similar code in pci.c */
30750+ acxusb_s_read_eeprom_version(adev);
30751+ acxusb_s_fill_configoption(adev);
30752+ acx_s_set_defaults(adev);
30753+ acx_s_get_firmware_version(adev);
30754+ acx_display_hardware_details(adev);
30755+
30756+ /* Register the network device */
30757+ log(L_INIT, "registering network device\n");
30758+ result = register_netdev(ndev);
30759+ if (result) {
30760+ msg = "acx: failed to register USB network device "
30761+ "(error %d)\n";
30762+ goto end_nomem;
30763+ }
30764+
30765+ acx_proc_register_entries(ndev);
30766+
30767+ acx_stop_queue(ndev, "on probe");
30768+ acx_carrier_off(ndev, "on probe");
30769+
30770+ printk("acx: USB module " ACX_RELEASE " loaded successfully\n");
30771+
30772+#if CMD_DISCOVERY
30773+ great_inquisitor(adev);
30774+#endif
30775+
30776+ /* Everything went OK, we are happy now */
30777+ result = OK;
30778+ goto end;
30779+
30780+end_nomem:
30781+ printk(msg, result);
30782+
30783+ if (ndev) {
30784+ if (adev->usb_rx) {
30785+ for (i = 0; i < ACX_RX_URB_CNT; i++)
30786+ usb_free_urb(adev->usb_rx[i].urb);
30787+ kfree(adev->usb_rx);
30788+ }
30789+ if (adev->usb_tx) {
30790+ for (i = 0; i < ACX_TX_URB_CNT; i++)
30791+ usb_free_urb(adev->usb_tx[i].urb);
30792+ kfree(adev->usb_tx);
30793+ }
30794+ free_netdev(ndev);
30795+ }
30796+
30797+ result = -ENOMEM;
30798+ goto end;
30799+
30800+end_nodev:
30801+ /* no device we could handle, return error. */
30802+ result = -EIO;
30803+
30804+end:
30805+ FN_EXIT1(result);
30806+ return result;
30807+}
30808+
30809+
30810+/***********************************************************************
30811+** acxusb_e_disconnect()
30812+**
30813+** This function is invoked whenever the user pulls the plug from the USB
30814+** device or the module is removed from the kernel. In these cases, the
30815+** network devices have to be taken down and all allocated memory has
30816+** to be freed.
30817+*/
30818+static void
30819+acxusb_e_disconnect(struct usb_interface *intf)
30820+{
30821+ acx_device_t *adev = usb_get_intfdata(intf);
30822+ unsigned long flags;
30823+ int i;
30824+
30825+ FN_ENTER;
30826+
30827+ /* No WLAN device... no sense */
30828+ if (!adev)
30829+ goto end;
30830+
30831+ /* Unregister network device
30832+ *
30833+ * If the interface is up, unregister_netdev() will take
30834+ * care of calling our close() function, which takes
30835+ * care of unlinking the urbs, sending the device to
30836+ * sleep, etc...
30837+ * This can't be called with sem or lock held because
30838+ * _close() will try to grab it as well if it's called,
30839+ * deadlocking the machine.
30840+ */
30841+ unregister_netdev(adev->ndev);
30842+
30843+ acx_sem_lock(adev);
30844+ acx_lock(adev, flags);
30845+ /* This device exists no more */
30846+ usb_set_intfdata(intf, NULL);
30847+ acx_proc_unregister_entries(adev->ndev);
30848+
30849+ /*
30850+ * Here we only free them. _close() took care of
30851+ * unlinking them.
30852+ */
30853+ for (i = 0; i < ACX_RX_URB_CNT; ++i) {
30854+ usb_free_urb(adev->usb_rx[i].urb);
30855+ }
30856+ for (i = 0; i< ACX_TX_URB_CNT; ++i) {
30857+ usb_free_urb(adev->usb_tx[i].urb);
30858+ }
30859+
30860+ /* Freeing containers */
30861+ kfree(adev->usb_rx);
30862+ kfree(adev->usb_tx);
30863+
30864+ acx_unlock(adev, flags);
30865+ acx_sem_unlock(adev);
30866+
30867+ free_netdev(adev->ndev);
30868+end:
30869+ FN_EXIT0;
30870+}
30871+
30872+
30873+/***********************************************************************
30874+** acxusb_e_open()
30875+** This function is called when the user sets up the network interface.
30876+** It initializes a management timer, sets up the USB card and starts
30877+** the network tx queue and USB receive.
30878+*/
30879+static int
30880+acxusb_e_open(struct net_device *ndev)
30881+{
30882+ acx_device_t *adev = ndev2adev(ndev);
30883+ unsigned long flags;
30884+ int i;
30885+
30886+ FN_ENTER;
30887+
30888+ acx_sem_lock(adev);
30889+
30890+ /* put the ACX100 out of sleep mode */
30891+ acx_s_issue_cmd(adev, ACX1xx_CMD_WAKE, NULL, 0);
30892+
30893+ acx_init_task_scheduler(adev);
30894+
30895+ init_timer(&adev->mgmt_timer);
30896+ adev->mgmt_timer.function = acx_i_timer;
30897+ adev->mgmt_timer.data = (unsigned long)adev;
30898+
30899+ /* acx_s_start needs it */
30900+ SET_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
30901+ acx_s_start(adev);
30902+
30903+ /* don't acx_start_queue() here, we need to associate first */
30904+
30905+ acx_lock(adev, flags);
30906+ for (i = 0; i < ACX_RX_URB_CNT; i++) {
30907+ adev->usb_rx[i].urb->status = 0;
30908+ }
30909+
30910+ acxusb_l_poll_rx(adev, &adev->usb_rx[0]);
30911+
30912+ acx_unlock(adev, flags);
30913+
30914+ acx_sem_unlock(adev);
30915+
30916+ FN_EXIT0;
30917+ return 0;
30918+}
30919+
30920+
30921+/***********************************************************************
30922+** acxusb_e_close()
30923+**
30924+** This function stops the network functionality of the interface (invoked
30925+** when the user calls ifconfig <wlan> down). The tx queue is halted and
30926+** the device is marked as down. In case there were any pending USB bulk
30927+** transfers, these are unlinked (asynchronously). The module in-use count
30928+** is also decreased in this function.
30929+*/
30930+static int
30931+acxusb_e_close(struct net_device *ndev)
30932+{
30933+ acx_device_t *adev = ndev2adev(ndev);
30934+ unsigned long flags;
30935+ int i;
30936+
30937+ FN_ENTER;
30938+
30939+#ifdef WE_STILL_DONT_CARE_ABOUT_IT
30940+ /* Transmit a disassociate frame */
30941+ lock
30942+ acx_l_transmit_disassoc(adev, &client);
30943+ unlock
30944+#endif
30945+
30946+ acx_sem_lock(adev);
30947+
30948+ CLEAR_BIT(adev->dev_state_mask, ACX_STATE_IFACE_UP);
30949+
30950+/* Code below is remarkably similar to acxpci_s_down(). Maybe we can merge them? */
30951+
30952+ /* Make sure we don't get any more rx requests */
30953+ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_RX, NULL, 0);
30954+ acx_s_issue_cmd(adev, ACX1xx_CMD_DISABLE_TX, NULL, 0);
30955+
30956+ /*
30957+ * We must do FLUSH *without* holding sem to avoid a deadlock.
30958+ * See pci.c:acxpci_s_down() for deails.
30959+ */
30960+ acx_sem_unlock(adev);
30961+ FLUSH_SCHEDULED_WORK();
30962+ acx_sem_lock(adev);
30963+
30964+ /* Power down the device */
30965+ acx_s_issue_cmd(adev, ACX1xx_CMD_SLEEP, NULL, 0);
30966+
30967+ /* Stop the transmit queue, mark the device as DOWN */
30968+ acx_lock(adev, flags);
30969+ acx_stop_queue(ndev, "on ifdown");
30970+ acx_set_status(adev, ACX_STATUS_0_STOPPED);
30971+ /* stop pending rx/tx urb transfers */
30972+ for (i = 0; i < ACX_TX_URB_CNT; i++) {
30973+ acxusb_unlink_urb(adev->usb_tx[i].urb);
30974+ adev->usb_tx[i].busy = 0;
30975+ }
30976+ for (i = 0; i < ACX_RX_URB_CNT; i++) {
30977+ acxusb_unlink_urb(adev->usb_rx[i].urb);
30978+ adev->usb_rx[i].busy = 0;
30979+ }
30980+ adev->tx_free = ACX_TX_URB_CNT;
30981+ acx_unlock(adev, flags);
30982+
30983+ /* Must do this outside of lock */
30984+ del_timer_sync(&adev->mgmt_timer);
30985+
30986+ acx_sem_unlock(adev);
30987+
30988+ FN_EXIT0;
30989+ return 0;
30990+}
30991+
30992+
30993+/***********************************************************************
30994+** acxusb_l_poll_rx
30995+** This function (re)initiates a bulk-in USB transfer on a given urb
30996+*/
30997+static void
30998+acxusb_l_poll_rx(acx_device_t *adev, usb_rx_t* rx)
30999+{
31000+ struct usb_device *usbdev;
31001+ struct urb *rxurb;
31002+ int errcode, rxnum;
31003+ unsigned int inpipe;
31004+
31005+ FN_ENTER;
31006+
31007+ rxurb = rx->urb;
31008+ usbdev = adev->usbdev;
31009+
31010+ rxnum = rx - adev->usb_rx;
31011+
31012+ inpipe = usb_rcvbulkpipe(usbdev, adev->bulkinep);
31013+ if (unlikely(rxurb->status == -EINPROGRESS)) {
31014+ printk(KERN_ERR "acx: error, rx triggered while rx urb in progress\n");
31015+ /* FIXME: this is nasty, receive is being cancelled by this code
31016+ * on the other hand, this should not happen anyway...
31017+ */
31018+ usb_unlink_urb(rxurb);
31019+ } else
31020+ if (unlikely(rxurb->status == -ECONNRESET)) {
31021+ log(L_USBRXTX, "acx_usb: _poll_rx: connection reset\n");
31022+ goto end;
31023+ }
31024+ rxurb->actual_length = 0;
31025+ usb_fill_bulk_urb(rxurb, usbdev, inpipe,
31026+ &rx->bulkin, /* dataptr */
31027+ RXBUFSIZE, /* size */
31028+ acxusb_i_complete_rx, /* handler */
31029+ rx /* handler param */
31030+ );
31031+ rxurb->transfer_flags = URB_ASYNC_UNLINK;
31032+
31033+ /* ATOMIC: we may be called from complete_rx() usb callback */
31034+ errcode = usb_submit_urb(rxurb, GFP_ATOMIC);
31035+ /* FIXME: evaluate the error code! */
31036+ log(L_USBRXTX, "SUBMIT RX (%d) inpipe=0x%X size=%d errcode=%d\n",
31037+ rxnum, inpipe, (int) RXBUFSIZE, errcode);
31038+end:
31039+ FN_EXIT0;
31040+}
31041+
31042+
31043+/***********************************************************************
31044+** acxusb_i_complete_rx()
31045+** Inputs:
31046+** urb -> pointer to USB request block
31047+** regs -> pointer to register-buffer for syscalls (see asm/ptrace.h)
31048+**
31049+** This function is invoked by USB subsystem whenever a bulk receive
31050+** request returns.
31051+** The received data is then committed to the network stack and the next
31052+** USB receive is triggered.
31053+*/
31054+static void
31055+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
31056+acxusb_i_complete_rx(struct urb *urb)
31057+#else
31058+acxusb_i_complete_rx(struct urb *urb, struct pt_regs *regs)
31059+#endif
31060+{
31061+ acx_device_t *adev;
31062+ rxbuffer_t *ptr;
31063+ rxbuffer_t *inbuf;
31064+ usb_rx_t *rx;
31065+ unsigned long flags;
31066+ int size, remsize, packetsize, rxnum;
31067+
31068+ FN_ENTER;
31069+
31070+ BUG_ON(!urb->context);
31071+
31072+ rx = (usb_rx_t *)urb->context;
31073+ adev = rx->adev;
31074+
31075+ acx_lock(adev, flags);
31076+
31077+ /*
31078+ * Happens on disconnect or close. Don't play with the urb.
31079+ * Don't resubmit it. It will get unlinked by close()
31080+ */
31081+ if (unlikely(!(adev->dev_state_mask & ACX_STATE_IFACE_UP))) {
31082+ log(L_USBRXTX, "rx: device is down, not doing anything\n");
31083+ goto end_unlock;
31084+ }
31085+
31086+ inbuf = &rx->bulkin;
31087+ size = urb->actual_length;
31088+ remsize = size;
31089+ rxnum = rx - adev->usb_rx;
31090+
31091+ log(L_USBRXTX, "RETURN RX (%d) status=%d size=%d\n",
31092+ rxnum, urb->status, size);
31093+
31094+ /* Send the URB that's waiting. */
31095+ log(L_USBRXTX, "rxnum=%d, sending=%d\n", rxnum, rxnum^1);
31096+ acxusb_l_poll_rx(adev, &adev->usb_rx[rxnum^1]);
31097+
31098+ if (unlikely(size > sizeof(rxbuffer_t)))
31099+ printk("acx_usb: rx too large: %d, please report\n", size);
31100+
31101+ /* check if the transfer was aborted */
31102+ switch (urb->status) {
31103+ case 0: /* No error */
31104+ break;
31105+ case -EOVERFLOW:
31106+ printk(KERN_ERR "acx: rx data overrun\n");
31107+ adev->rxtruncsize = 0; /* Not valid anymore. */
31108+ goto end_unlock;
31109+ case -ECONNRESET:
31110+ adev->rxtruncsize = 0;
31111+ goto end_unlock;
31112+ case -ESHUTDOWN: /* rmmod */
31113+ adev->rxtruncsize = 0;
31114+ goto end_unlock;
31115+ default:
31116+ adev->rxtruncsize = 0;
31117+ adev->stats.rx_errors++;
31118+ printk("acx: rx error (urb status=%d)\n", urb->status);
31119+ goto end_unlock;
31120+ }
31121+
31122+ if (unlikely(!size))
31123+ printk("acx: warning, encountered zerolength rx packet\n");
31124+
31125+ if (urb->transfer_buffer != inbuf)
31126+ goto end_unlock;
31127+
31128+ /* check if previous frame was truncated
31129+ ** FIXME: this code can only handle truncation
31130+ ** of consecutive packets!
31131+ */
31132+ ptr = inbuf;
31133+ if (adev->rxtruncsize) {
31134+ int tail_size;
31135+
31136+ ptr = &adev->rxtruncbuf;
31137+ packetsize = RXBUF_BYTES_USED(ptr);
31138+ if (acx_debug & L_USBRXTX) {
31139+ printk("handling truncated frame (truncsize=%d size=%d "
31140+ "packetsize(from trunc)=%d)\n",
31141+ adev->rxtruncsize, size, packetsize);
31142+ acx_dump_bytes(ptr, RXBUF_HDRSIZE);
31143+ acx_dump_bytes(inbuf, RXBUF_HDRSIZE);
31144+ }
31145+
31146+ /* bytes needed for rxtruncbuf completion: */
31147+ tail_size = packetsize - adev->rxtruncsize;
31148+
31149+ if (size < tail_size) {
31150+ /* there is not enough data to complete this packet,
31151+ ** simply append the stuff to the truncation buffer
31152+ */
31153+ memcpy(((char *)ptr) + adev->rxtruncsize, inbuf, size);
31154+ adev->rxtruncsize += size;
31155+ remsize = 0;
31156+ } else {
31157+ /* ok, this data completes the previously
31158+ ** truncated packet. copy it into a descriptor
31159+ ** and give it to the rest of the stack */
31160+
31161+ /* append tail to previously truncated part
31162+ ** NB: adev->rxtruncbuf (pointed to by ptr) can't
31163+ ** overflow because this is already checked before
31164+ ** truncation buffer was filled. See below,
31165+ ** "if (packetsize > sizeof(rxbuffer_t))..." code */
31166+ memcpy(((char *)ptr) + adev->rxtruncsize, inbuf, tail_size);
31167+
31168+ if (acx_debug & L_USBRXTX) {
31169+ printk("full trailing packet + 12 bytes:\n");
31170+ acx_dump_bytes(inbuf, tail_size + RXBUF_HDRSIZE);
31171+ }
31172+ acx_l_process_rxbuf(adev, ptr);
31173+ adev->rxtruncsize = 0;
31174+ ptr = (rxbuffer_t *) (((char *)inbuf) + tail_size);
31175+ remsize -= tail_size;
31176+ }
31177+ log(L_USBRXTX, "post-merge size=%d remsize=%d\n",
31178+ size, remsize);
31179+ }
31180+
31181+ /* size = USB data block size
31182+ ** remsize = unprocessed USB bytes left
31183+ ** ptr = current pos in USB data block
31184+ */
31185+ while (remsize) {
31186+ if (remsize < RXBUF_HDRSIZE) {
31187+ printk("acx: truncated rx header (%d bytes)!\n",
31188+ remsize);
31189+ if (ACX_DEBUG)
31190+ acx_dump_bytes(ptr, remsize);
31191+ break;
31192+ }
31193+
31194+ packetsize = RXBUF_BYTES_USED(ptr);
31195+ log(L_USBRXTX, "packet with packetsize=%d\n", packetsize);
31196+
31197+ if (RXBUF_IS_TXSTAT(ptr)) {
31198+ /* do rate handling */
31199+ usb_txstatus_t *stat = (void*)ptr;
31200+ u16 client_no = (u16)stat->hostdata;
31201+
31202+ log(L_USBRXTX, "tx: stat: mac_cnt_rcvd:%04X "
31203+ "queue_index:%02X mac_status:%02X hostdata:%08X "
31204+ "rate:%u ack_failures:%02X rts_failures:%02X "
31205+ "rts_ok:%02X\n",
31206+ stat->mac_cnt_rcvd,
31207+ stat->queue_index, stat->mac_status, stat->hostdata,
31208+ stat->rate, stat->ack_failures, stat->rts_failures,
31209+ stat->rts_ok);
31210+
31211+ if (adev->rate_auto && client_no < VEC_SIZE(adev->sta_list)) {
31212+ client_t *clt = &adev->sta_list[client_no];
31213+ u16 cur = stat->hostdata >> 16;
31214+
31215+ if (clt && clt->rate_cur == cur) {
31216+ acx_l_handle_txrate_auto(adev, clt,
31217+ cur, /* intended rate */
31218+ stat->rate, 0, /* actually used rate */
31219+ stat->mac_status, /* error? */
31220+ ACX_TX_URB_CNT - adev->tx_free);
31221+ }
31222+ }
31223+ goto next;
31224+ }
31225+
31226+ if (packetsize > sizeof(rxbuffer_t)) {
31227+ printk("acx: packet exceeds max wlan "
31228+ "frame size (%d > %d). size=%d\n",
31229+ packetsize, (int) sizeof(rxbuffer_t), size);
31230+ if (ACX_DEBUG)
31231+ acx_dump_bytes(ptr, 16);
31232+ /* FIXME: put some real error-handling in here! */
31233+ break;
31234+ }
31235+
31236+ if (packetsize > remsize) {
31237+ /* frame truncation handling */
31238+ if (acx_debug & L_USBRXTX) {
31239+ printk("need to truncate packet, "
31240+ "packetsize=%d remsize=%d "
31241+ "size=%d bytes:",
31242+ packetsize, remsize, size);
31243+ acx_dump_bytes(ptr, RXBUF_HDRSIZE);
31244+ }
31245+ memcpy(&adev->rxtruncbuf, ptr, remsize);
31246+ adev->rxtruncsize = remsize;
31247+ break;
31248+ }
31249+
31250+ /* packetsize <= remsize */
31251+ /* now handle the received data */
31252+ acx_l_process_rxbuf(adev, ptr);
31253+next:
31254+ ptr = (rxbuffer_t *)(((char *)ptr) + packetsize);
31255+ remsize -= packetsize;
31256+ if ((acx_debug & L_USBRXTX) && remsize) {
31257+ printk("more than one packet in buffer, "
31258+ "second packet hdr:");
31259+ acx_dump_bytes(ptr, RXBUF_HDRSIZE);
31260+ }
31261+ }
31262+
31263+end_unlock:
31264+ acx_unlock(adev, flags);
31265+/* end: */
31266+ FN_EXIT0;
31267+}
31268+
31269+
31270+/***********************************************************************
31271+** acxusb_i_complete_tx()
31272+** Inputs:
31273+** urb -> pointer to USB request block
31274+** regs -> pointer to register-buffer for syscalls (see asm/ptrace.h)
31275+**
31276+** This function is invoked upon termination of a USB transfer.
31277+*/
31278+static void
31279+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
31280+acxusb_i_complete_tx(struct urb *urb)
31281+#else
31282+acxusb_i_complete_tx(struct urb *urb, struct pt_regs *regs)
31283+#endif
31284+{
31285+ acx_device_t *adev;
31286+ usb_tx_t *tx;
31287+ unsigned long flags;
31288+ int txnum;
31289+
31290+ FN_ENTER;
31291+
31292+ BUG_ON(!urb->context);
31293+
31294+ tx = (usb_tx_t *)urb->context;
31295+ adev = tx->adev;
31296+
31297+ txnum = tx - adev->usb_tx;
31298+
31299+ acx_lock(adev, flags);
31300+
31301+ /*
31302+ * If the iface isn't up, we don't have any right
31303+ * to play with them. The urb may get unlinked.
31304+ */
31305+ if (unlikely(!(adev->dev_state_mask & ACX_STATE_IFACE_UP))) {
31306+ log(L_USBRXTX, "tx: device is down, not doing anything\n");
31307+ goto end_unlock;
31308+ }
31309+
31310+ log(L_USBRXTX, "RETURN TX (%d): status=%d size=%d\n",
31311+ txnum, urb->status, urb->actual_length);
31312+
31313+ /* handle USB transfer errors */
31314+ switch (urb->status) {
31315+ case 0: /* No error */
31316+ break;
31317+ case -ESHUTDOWN:
31318+ goto end_unlock;
31319+ break;
31320+ case -ECONNRESET:
31321+ goto end_unlock;
31322+ break;
31323+ /* FIXME: real error-handling code here please */
31324+ default:
31325+ printk(KERN_ERR "acx: tx error, urb status=%d\n", urb->status);
31326+ /* FIXME: real error-handling code here please */
31327+ }
31328+
31329+ /* free the URB and check for more data */
31330+ tx->busy = 0;
31331+ adev->tx_free++;
31332+ if ((adev->tx_free >= TX_START_QUEUE)
31333+ && (adev->status == ACX_STATUS_4_ASSOCIATED)
31334+ && (acx_queue_stopped(adev->ndev))
31335+ ) {
31336+ log(L_BUF, "tx: wake queue (%u free txbufs)\n",
31337+ adev->tx_free);
31338+ acx_wake_queue(adev->ndev, NULL);
31339+ }
31340+
31341+end_unlock:
31342+ acx_unlock(adev, flags);
31343+/* end: */
31344+ FN_EXIT0;
31345+}
31346+
31347+
31348+/***************************************************************
31349+** acxusb_l_alloc_tx
31350+** Actually returns a usb_tx_t* ptr
31351+*/
31352+tx_t*
31353+acxusb_l_alloc_tx(acx_device_t *adev)
31354+{
31355+ usb_tx_t *tx;
31356+ unsigned head;
31357+
31358+ FN_ENTER;
31359+
31360+ head = adev->tx_head;
31361+ do {
31362+ head = (head + 1) % ACX_TX_URB_CNT;
31363+ if (!adev->usb_tx[head].busy) {
31364+ log(L_USBRXTX, "allocated tx %d\n", head);
31365+ tx = &adev->usb_tx[head];
31366+ tx->busy = 1;
31367+ adev->tx_free--;
31368+ /* Keep a few free descs between head and tail of tx ring.
31369+ ** It is not absolutely needed, just feels safer */
31370+ if (adev->tx_free < TX_STOP_QUEUE) {
31371+ log(L_BUF, "tx: stop queue "
31372+ "(%u free txbufs)\n", adev->tx_free);
31373+ acx_stop_queue(adev->ndev, NULL);
31374+ }
31375+ goto end;
31376+ }
31377+ } while (likely(head!=adev->tx_head));
31378+ tx = NULL;
31379+ printk_ratelimited("acx: tx buffers full\n");
31380+end:
31381+ adev->tx_head = head;
31382+ FN_EXIT0;
31383+ return (tx_t*)tx;
31384+}
31385+
31386+
31387+/***************************************************************
31388+** Used if alloc_tx()'ed buffer needs to be cancelled without doing tx
31389+*/
31390+void
31391+acxusb_l_dealloc_tx(tx_t *tx_opaque)
31392+{
31393+ usb_tx_t* tx = (usb_tx_t*)tx_opaque;
31394+ tx->busy = 0;
31395+}
31396+
31397+
31398+/***************************************************************
31399+*/
31400+void*
31401+acxusb_l_get_txbuf(acx_device_t *adev, tx_t* tx_opaque)
31402+{
31403+ usb_tx_t* tx = (usb_tx_t*)tx_opaque;
31404+ return &tx->bulkout.data;
31405+}
31406+
31407+
31408+/***************************************************************
31409+** acxusb_l_tx_data
31410+**
31411+** Can be called from IRQ (rx -> (AP bridging or mgmt response) -> tx).
31412+** Can be called from acx_i_start_xmit (data frames from net core).
31413+*/
31414+void
31415+acxusb_l_tx_data(acx_device_t *adev, tx_t* tx_opaque, int wlanpkt_len)
31416+{
31417+ struct usb_device *usbdev;
31418+ struct urb* txurb;
31419+ usb_tx_t* tx;
31420+ usb_txbuffer_t* txbuf;
31421+ client_t *clt;
31422+ wlan_hdr_t* whdr;
31423+ unsigned int outpipe;
31424+ int ucode, txnum;
31425+
31426+ FN_ENTER;
31427+
31428+ tx = ((usb_tx_t *)tx_opaque);
31429+ txurb = tx->urb;
31430+ txbuf = &tx->bulkout;
31431+ whdr = (wlan_hdr_t *)txbuf->data;
31432+ txnum = tx - adev->usb_tx;
31433+
31434+ log(L_DEBUG, "using buf#%d free=%d len=%d\n",
31435+ txnum, adev->tx_free, wlanpkt_len);
31436+
31437+ switch (adev->mode) {
31438+ case ACX_MODE_0_ADHOC:
31439+ case ACX_MODE_3_AP:
31440+ clt = acx_l_sta_list_get(adev, whdr->a1);
31441+ break;
31442+ case ACX_MODE_2_STA:
31443+ clt = adev->ap_client;
31444+ break;
31445+ default: /* ACX_MODE_OFF, ACX_MODE_MONITOR */
31446+ clt = NULL;
31447+ break;
31448+ }
31449+
31450+ if (unlikely(clt && !clt->rate_cur)) {
31451+ printk("acx: driver bug! bad ratemask\n");
31452+ goto end;
31453+ }
31454+
31455+ /* fill the USB transfer header */
31456+ txbuf->desc = cpu_to_le16(USB_TXBUF_TXDESC);
31457+ txbuf->mpdu_len = cpu_to_le16(wlanpkt_len);
31458+ txbuf->queue_index = 1;
31459+ if (clt) {
31460+ txbuf->rate = clt->rate_100;
31461+ txbuf->hostdata = (clt - adev->sta_list) | (clt->rate_cur << 16);
31462+ } else {
31463+ txbuf->rate = adev->rate_bcast100;
31464+ txbuf->hostdata = ((u16)-1) | (adev->rate_bcast << 16);
31465+ }
31466+ txbuf->ctrl1 = DESC_CTL_FIRSTFRAG;
31467+ if (1 == adev->preamble_cur)
31468+ SET_BIT(txbuf->ctrl1, DESC_CTL_SHORT_PREAMBLE);
31469+ txbuf->ctrl2 = 0;
31470+ txbuf->data_len = cpu_to_le16(wlanpkt_len);
31471+
31472+ if (unlikely(acx_debug & L_DATA)) {
31473+ printk("dump of bulk out urb:\n");
31474+ acx_dump_bytes(txbuf, wlanpkt_len + USB_TXBUF_HDRSIZE);
31475+ }
31476+
31477+ if (unlikely(txurb->status == -EINPROGRESS)) {
31478+ printk("acx: trying to submit tx urb while already in progress\n");
31479+ }
31480+
31481+ /* now schedule the USB transfer */
31482+ usbdev = adev->usbdev;
31483+ outpipe = usb_sndbulkpipe(usbdev, adev->bulkoutep);
31484+
31485+ usb_fill_bulk_urb(txurb, usbdev, outpipe,
31486+ txbuf, /* dataptr */
31487+ wlanpkt_len + USB_TXBUF_HDRSIZE, /* size */
31488+ acxusb_i_complete_tx, /* handler */
31489+ tx /* handler param */
31490+ );
31491+
31492+ txurb->transfer_flags = URB_ASYNC_UNLINK|URB_ZERO_PACKET;
31493+ ucode = usb_submit_urb(txurb, GFP_ATOMIC);
31494+ log(L_USBRXTX, "SUBMIT TX (%d): outpipe=0x%X buf=%p txsize=%d "
31495+ "rate=%u errcode=%d\n", txnum, outpipe, txbuf,
31496+ wlanpkt_len + USB_TXBUF_HDRSIZE, txbuf->rate, ucode);
31497+
31498+ if (unlikely(ucode)) {
31499+ printk(KERN_ERR "acx: submit_urb() error=%d txsize=%d\n",
31500+ ucode, wlanpkt_len + USB_TXBUF_HDRSIZE);
31501+
31502+ /* on error, just mark the frame as done and update
31503+ ** the statistics
31504+ */
31505+ adev->stats.tx_errors++;
31506+ tx->busy = 0;
31507+ adev->tx_free++;
31508+ /* needed? if (adev->tx_free > TX_START_QUEUE) acx_wake_queue(...) */
31509+ }
31510+end:
31511+ FN_EXIT0;
31512+}
31513+
31514+
31515+/***********************************************************************
31516+*/
31517+static void
31518+acxusb_i_set_rx_mode(struct net_device *ndev)
31519+{
31520+}
31521+
31522+
31523+/***********************************************************************
31524+*/
31525+#ifdef HAVE_TX_TIMEOUT
31526+static void
31527+acxusb_i_tx_timeout(struct net_device *ndev)
31528+{
31529+ acx_device_t *adev = ndev2adev(ndev);
31530+ unsigned long flags;
31531+ int i;
31532+
31533+ FN_ENTER;
31534+
31535+ acx_lock(adev, flags);
31536+ /* unlink the URBs */
31537+ for (i = 0; i < ACX_TX_URB_CNT; i++) {
31538+ acxusb_unlink_urb(adev->usb_tx[i].urb);
31539+ adev->usb_tx[i].busy = 0;
31540+ }
31541+ adev->tx_free = ACX_TX_URB_CNT;
31542+ /* TODO: stats update */
31543+ acx_unlock(adev, flags);
31544+
31545+ FN_EXIT0;
31546+}
31547+#endif
31548+
31549+
31550+/***********************************************************************
31551+** init_module()
31552+**
31553+** This function is invoked upon loading of the kernel module.
31554+** It registers itself at the kernel's USB subsystem.
31555+**
31556+** Returns: Errorcode on failure, 0 on success
31557+*/
31558+int __init
31559+acxusb_e_init_module(void)
31560+{
31561+ log(L_INIT, "USB module " ACX_RELEASE " initialized, "
31562+ "probing for devices...\n");
31563+ return usb_register(&acxusb_driver);
31564+}
31565+
31566+
31567+
31568+/***********************************************************************
31569+** cleanup_module()
31570+**
31571+** This function is invoked as last step of the module unloading. It simply
31572+** deregisters this module at the kernel's USB subsystem.
31573+*/
31574+void __exit
31575+acxusb_e_cleanup_module()
31576+{
31577+ usb_deregister(&acxusb_driver);
31578+}
31579+
31580+
31581+/***********************************************************************
31582+** DEBUG STUFF
31583+*/
31584+#if ACX_DEBUG
31585+
31586+#ifdef UNUSED
31587+static void
31588+dump_device(struct usb_device *usbdev)
31589+{
31590+ int i;
31591+ struct usb_config_descriptor *cd;
31592+
31593+ printk("acx device dump:\n");
31594+ printk(" devnum: %d\n", usbdev->devnum);
31595+ printk(" speed: %d\n", usbdev->speed);
31596+ printk(" tt: 0x%X\n", (unsigned int)(usbdev->tt));
31597+ printk(" ttport: %d\n", (unsigned int)(usbdev->ttport));
31598+ printk(" toggle[0]: 0x%X toggle[1]: 0x%X\n", (unsigned int)(usbdev->toggle[0]), (unsigned int)(usbdev->toggle[1]));
31599+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 11)
31600+ /* This saw a change after 2.6.10 */
31601+ printk(" ep_in wMaxPacketSize: ");
31602+ for (i = 0; i < 16; ++i)
31603+ if (usbdev->ep_in[i] != NULL)
31604+ printk("%d:%d ", i, usbdev->ep_in[i]->desc.wMaxPacketSize);
31605+ printk("\n");
31606+ printk(" ep_out wMaxPacketSize: ");
31607+ for (i = 0; i < VEC_SIZE(usbdev->ep_out); ++i)
31608+ if (usbdev->ep_out[i] != NULL)
31609+ printk("%d:%d ", i, usbdev->ep_out[i]->desc.wMaxPacketSize);
31610+ printk("\n");
31611+#else
31612+ printk(" epmaxpacketin: ");
31613+ for (i = 0; i < 16; i++)
31614+ printk("%d ", usbdev->epmaxpacketin[i]);
31615+ printk("\n");
31616+ printk(" epmaxpacketout: ");
31617+ for (i = 0; i < 16; i++)
31618+ printk("%d ", usbdev->epmaxpacketout[i]);
31619+ printk("\n");
31620+#endif
31621+ printk(" parent: 0x%X\n", (unsigned int)usbdev->parent);
31622+ printk(" bus: 0x%X\n", (unsigned int)usbdev->bus);
31623+#ifdef NO_DATATYPE
31624+ printk(" configs: ");
31625+ for (i = 0; i < usbdev->descriptor.bNumConfigurations; i++)
31626+ printk("0x%X ", usbdev->config[i]);
31627+ printk("\n");
31628+#endif
31629+ printk(" actconfig: %p\n", usbdev->actconfig);
31630+ dump_device_descriptor(&usbdev->descriptor);
31631+
31632+ cd = &usbdev->config->desc;
31633+ dump_config_descriptor(cd);
31634+}
31635+
31636+
31637+/***********************************************************************
31638+*/
31639+static void
31640+dump_config_descriptor(struct usb_config_descriptor *cd)
31641+{
31642+ printk("Configuration Descriptor:\n");
31643+ if (!cd) {
31644+ printk("NULL\n");
31645+ return;
31646+ }
31647+ printk(" bLength: %d (0x%X)\n", cd->bLength, cd->bLength);
31648+ printk(" bDescriptorType: %d (0x%X)\n", cd->bDescriptorType, cd->bDescriptorType);
31649+ printk(" bNumInterfaces: %d (0x%X)\n", cd->bNumInterfaces, cd->bNumInterfaces);
31650+ printk(" bConfigurationValue: %d (0x%X)\n", cd->bConfigurationValue, cd->bConfigurationValue);
31651+ printk(" iConfiguration: %d (0x%X)\n", cd->iConfiguration, cd->iConfiguration);
31652+ printk(" bmAttributes: %d (0x%X)\n", cd->bmAttributes, cd->bmAttributes);
31653+ /* printk(" MaxPower: %d (0x%X)\n", cd->bMaxPower, cd->bMaxPower); */
31654+}
31655+
31656+
31657+static void
31658+dump_device_descriptor(struct usb_device_descriptor *dd)
31659+{
31660+ printk("Device Descriptor:\n");
31661+ if (!dd) {
31662+ printk("NULL\n");
31663+ return;
31664+ }
31665+ printk(" bLength: %d (0x%X)\n", dd->bLength, dd->bLength);
31666+ printk(" bDescriptortype: %d (0x%X)\n", dd->bDescriptorType, dd->bDescriptorType);
31667+ printk(" bcdUSB: %d (0x%X)\n", dd->bcdUSB, dd->bcdUSB);
31668+ printk(" bDeviceClass: %d (0x%X)\n", dd->bDeviceClass, dd->bDeviceClass);
31669+ printk(" bDeviceSubClass: %d (0x%X)\n", dd->bDeviceSubClass, dd->bDeviceSubClass);
31670+ printk(" bDeviceProtocol: %d (0x%X)\n", dd->bDeviceProtocol, dd->bDeviceProtocol);
31671+ printk(" bMaxPacketSize0: %d (0x%X)\n", dd->bMaxPacketSize0, dd->bMaxPacketSize0);
31672+ printk(" idVendor: %d (0x%X)\n", dd->idVendor, dd->idVendor);
31673+ printk(" idProduct: %d (0x%X)\n", dd->idProduct, dd->idProduct);
31674+ printk(" bcdDevice: %d (0x%X)\n", dd->bcdDevice, dd->bcdDevice);
31675+ printk(" iManufacturer: %d (0x%X)\n", dd->iManufacturer, dd->iManufacturer);
31676+ printk(" iProduct: %d (0x%X)\n", dd->iProduct, dd->iProduct);
31677+ printk(" iSerialNumber: %d (0x%X)\n", dd->iSerialNumber, dd->iSerialNumber);
31678+ printk(" bNumConfigurations: %d (0x%X)\n", dd->bNumConfigurations, dd->bNumConfigurations);
31679+}
31680+#endif /* UNUSED */
31681+
31682+#endif /* ACX_DEBUG */
31683Index: linux-2.6.22/drivers/net/wireless/acx/wlan.c
31684===================================================================
31685--- /dev/null 1970-01-01 00:00:00.000000000 +0000
31686+++ linux-2.6.22/drivers/net/wireless/acx/wlan.c 2007-08-23 18:34:19.000000000 +0200
31687@@ -0,0 +1,424 @@
31688+/***********************************************************************
31689+** Copyright (C) 2003 ACX100 Open Source Project
31690+**
31691+** The contents of this file are subject to the Mozilla Public
31692+** License Version 1.1 (the "License"); you may not use this file
31693+** except in compliance with the License. You may obtain a copy of
31694+** the License at http://www.mozilla.org/MPL/
31695+**
31696+** Software distributed under the License is distributed on an "AS
31697+** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
31698+** implied. See the License for the specific language governing
31699+** rights and limitations under the License.
31700+**
31701+** Alternatively, the contents of this file may be used under the
31702+** terms of the GNU Public License version 2 (the "GPL"), in which
31703+** case the provisions of the GPL are applicable instead of the
31704+** above. If you wish to allow the use of your version of this file
31705+** only under the terms of the GPL and not to allow others to use
31706+** your version of this file under the MPL, indicate your decision
31707+** by deleting the provisions above and replace them with the notice
31708+** and other provisions required by the GPL. If you do not delete
31709+** the provisions above, a recipient may use your version of this
31710+** file under either the MPL or the GPL.
31711+** ---------------------------------------------------------------------
31712+** Inquiries regarding the ACX100 Open Source Project can be
31713+** made directly to:
31714+**
31715+** acx100-users@lists.sf.net
31716+** http://acx100.sf.net
31717+** ---------------------------------------------------------------------
31718+*/
31719+
31720+/***********************************************************************
31721+** This code is based on elements which are
31722+** Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
31723+** info@linux-wlan.com
31724+** http://www.linux-wlan.com
31725+*/
31726+
31727+#include <linux/version.h>
31728+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18)
31729+#include <linux/config.h>
31730+#endif
31731+#include <linux/types.h>
31732+#include <linux/if_arp.h>
31733+#include <linux/wireless.h>
31734+#include <net/iw_handler.h>
31735+
31736+#include "acx.h"
31737+
31738+
31739+/***********************************************************************
31740+*/
31741+#define LOG_BAD_EID(hdr,len,ie_ptr) acx_log_bad_eid(hdr, len, ((wlan_ie_t*)ie_ptr))
31742+
31743+#define IE_EID(ie_ptr) (((wlan_ie_t*)(ie_ptr))->eid)
31744+#define IE_LEN(ie_ptr) (((wlan_ie_t*)(ie_ptr))->len)
31745+#define OFFSET(hdr,off) (WLAN_HDR_A3_DATAP(hdr) + (off))
31746+
31747+
31748+/***********************************************************************
31749+** wlan_mgmt_decode_XXX
31750+**
31751+** Given a complete frame in f->hdr, sets the pointers in f to
31752+** the areas that correspond to the parts of the frame.
31753+**
31754+** Assumptions:
31755+** 1) f->len and f->hdr are already set
31756+** 2) f->len is the length of the MAC header + data, the FCS
31757+** is NOT included
31758+** 3) all members except len and hdr are zero
31759+** Arguments:
31760+** f frame structure
31761+**
31762+** Returns:
31763+** nothing
31764+**
31765+** Side effects:
31766+** frame structure members are pointing at their
31767+** respective portions of the frame buffer.
31768+*/
31769+void
31770+wlan_mgmt_decode_beacon(wlan_fr_beacon_t * f)
31771+{
31772+ u8 *ie_ptr;
31773+ u8 *end = (u8*)f->hdr + f->len;
31774+
31775+ f->type = WLAN_FSTYPE_BEACON;
31776+
31777+ /*-- Fixed Fields ----*/
31778+ f->ts = (u64 *) OFFSET(f->hdr, WLAN_BEACON_OFF_TS);
31779+ f->bcn_int = (u16 *) OFFSET(f->hdr, WLAN_BEACON_OFF_BCN_INT);
31780+ f->cap_info = (u16 *) OFFSET(f->hdr, WLAN_BEACON_OFF_CAPINFO);
31781+
31782+ /*-- Information elements */
31783+ ie_ptr = OFFSET(f->hdr, WLAN_BEACON_OFF_SSID);
31784+ while (ie_ptr < end) {
31785+ switch (IE_EID(ie_ptr)) {
31786+ case WLAN_EID_SSID:
31787+ f->ssid = (wlan_ie_ssid_t *) ie_ptr;
31788+ break;
31789+ case WLAN_EID_SUPP_RATES:
31790+ f->supp_rates = (wlan_ie_supp_rates_t *) ie_ptr;
31791+ break;
31792+ case WLAN_EID_EXT_RATES:
31793+ f->ext_rates = (wlan_ie_supp_rates_t *) ie_ptr;
31794+ break;
31795+ case WLAN_EID_FH_PARMS:
31796+ f->fh_parms = (wlan_ie_fh_parms_t *) ie_ptr;
31797+ break;
31798+ case WLAN_EID_DS_PARMS:
31799+ f->ds_parms = (wlan_ie_ds_parms_t *) ie_ptr;
31800+ break;
31801+ case WLAN_EID_CF_PARMS:
31802+ f->cf_parms = (wlan_ie_cf_parms_t *) ie_ptr;
31803+ break;
31804+ case WLAN_EID_IBSS_PARMS:
31805+ f->ibss_parms = (wlan_ie_ibss_parms_t *) ie_ptr;
31806+ break;
31807+ case WLAN_EID_TIM:
31808+ f->tim = (wlan_ie_tim_t *) ie_ptr;
31809+ break;
31810+ case WLAN_EID_ERP_INFO:
31811+ f->erp = (wlan_ie_erp_t *) ie_ptr;
31812+ break;
31813+
31814+ case WLAN_EID_COUNTRY:
31815+ /* was seen: 07 06 47 42 20 01 0D 14 */
31816+ case WLAN_EID_PWR_CONSTRAINT:
31817+ /* was seen by Ashwin Mansinghka <ashwin_man@yahoo.com> from
31818+ Atheros-based PCI card in AP mode using madwifi drivers: */
31819+ /* 20 01 00 */
31820+ case WLAN_EID_NONERP:
31821+ /* was seen from WRT54GS with OpenWrt: 2F 01 07 */
31822+ case WLAN_EID_UNKNOWN128:
31823+ /* was seen by Jacek Jablonski <conexion2000@gmail.com> from Orinoco AP */
31824+ /* 80 06 00 60 1D 2C 3B 00 */
31825+ case WLAN_EID_UNKNOWN133:
31826+ /* was seen by David Bronaugh <dbronaugh@linuxboxen.org> from ???? */
31827+ /* 85 1E 00 00 84 12 07 00 FF 00 11 00 61 70 63 31 */
31828+ /* 63 73 72 30 34 32 00 00 00 00 00 00 00 00 00 25 */
31829+ case WLAN_EID_UNKNOWN223:
31830+ /* was seen by Carlos Martin <carlosmn@gmail.com> from ???? */
31831+ /* DF 20 01 1E 04 00 00 00 06 63 09 02 FF 0F 30 30 */
31832+ /* 30 42 36 42 33 34 30 39 46 31 00 00 00 00 00 00 00 00 */
31833+ case WLAN_EID_GENERIC:
31834+ /* WPA: hostap code:
31835+ if (pos[1] >= 4 &&
31836+ pos[2] == 0x00 && pos[3] == 0x50 &&
31837+ pos[4] == 0xf2 && pos[5] == 1) {
31838+ wpa = pos;
31839+ wpa_len = pos[1] + 2;
31840+ }
31841+ TI x4 mode: seen DD 04 08 00 28 00
31842+ (08 00 28 is TI's OUI)
31843+ last byte is probably 0/1 - disabled/enabled
31844+ */
31845+ case WLAN_EID_RSN:
31846+ /* hostap does something with it:
31847+ rsn = pos;
31848+ rsn_len = pos[1] + 2;
31849+ */
31850+ break;
31851+
31852+ default:
31853+ LOG_BAD_EID(f->hdr, f->len, ie_ptr);
31854+ break;
31855+ }
31856+ ie_ptr = ie_ptr + 2 + IE_LEN(ie_ptr);
31857+ }
31858+}
31859+
31860+
31861+#ifdef UNUSED
31862+void wlan_mgmt_decode_ibssatim(wlan_fr_ibssatim_t * f)
31863+{
31864+ f->type = WLAN_FSTYPE_ATIM;
31865+ /*-- Fixed Fields ----*/
31866+ /*-- Information elements */
31867+}
31868+#endif /* UNUSED */
31869+
31870+void
31871+wlan_mgmt_decode_disassoc(wlan_fr_disassoc_t * f)
31872+{
31873+ f->type = WLAN_FSTYPE_DISASSOC;
31874+
31875+ /*-- Fixed Fields ----*/
31876+ f->reason = (u16 *) OFFSET(f->hdr, WLAN_DISASSOC_OFF_REASON);
31877+
31878+ /*-- Information elements */
31879+}
31880+
31881+
31882+void
31883+wlan_mgmt_decode_assocreq(wlan_fr_assocreq_t * f)
31884+{
31885+ u8 *ie_ptr;
31886+ u8 *end = (u8*)f->hdr + f->len;
31887+
31888+
31889+ f->type = WLAN_FSTYPE_ASSOCREQ;
31890+
31891+ /*-- Fixed Fields ----*/
31892+ f->cap_info = (u16 *) OFFSET(f->hdr, WLAN_ASSOCREQ_OFF_CAP_INFO);
31893+ f->listen_int = (u16 *) OFFSET(f->hdr, WLAN_ASSOCREQ_OFF_LISTEN_INT);
31894+
31895+ /*-- Information elements */
31896+ ie_ptr = OFFSET(f->hdr, WLAN_ASSOCREQ_OFF_SSID);
31897+ while (ie_ptr < end) {
31898+ switch (IE_EID(ie_ptr)) {
31899+ case WLAN_EID_SSID:
31900+ f->ssid = (wlan_ie_ssid_t *) ie_ptr;
31901+ break;
31902+ case WLAN_EID_SUPP_RATES:
31903+ f->supp_rates = (wlan_ie_supp_rates_t *) ie_ptr;
31904+ break;
31905+ case WLAN_EID_EXT_RATES:
31906+ f->ext_rates = (wlan_ie_supp_rates_t *) ie_ptr;
31907+ break;
31908+ default:
31909+ LOG_BAD_EID(f->hdr, f->len, ie_ptr);
31910+ break;
31911+ }
31912+ ie_ptr = ie_ptr + 2 + IE_LEN(ie_ptr);
31913+ }
31914+}
31915+
31916+
31917+void
31918+wlan_mgmt_decode_assocresp(wlan_fr_assocresp_t * f)
31919+{
31920+ f->type = WLAN_FSTYPE_ASSOCRESP;
31921+
31922+ /*-- Fixed Fields ----*/
31923+ f->cap_info = (u16 *) OFFSET(f->hdr, WLAN_ASSOCRESP_OFF_CAP_INFO);
31924+ f->status = (u16 *) OFFSET(f->hdr, WLAN_ASSOCRESP_OFF_STATUS);
31925+ f->aid = (u16 *) OFFSET(f->hdr, WLAN_ASSOCRESP_OFF_AID);
31926+
31927+ /*-- Information elements */
31928+ f->supp_rates = (wlan_ie_supp_rates_t *)
31929+ OFFSET(f->hdr, WLAN_ASSOCRESP_OFF_SUPP_RATES);
31930+}
31931+
31932+
31933+#ifdef UNUSED
31934+void
31935+wlan_mgmt_decode_reassocreq(wlan_fr_reassocreq_t * f)
31936+{
31937+ u8 *ie_ptr;
31938+ u8 *end = (u8*)f->hdr + f->len;
31939+
31940+ f->type = WLAN_FSTYPE_REASSOCREQ;
31941+
31942+ /*-- Fixed Fields ----*/
31943+ f->cap_info = (u16 *) OFFSET(f->hdr, WLAN_REASSOCREQ_OFF_CAP_INFO);
31944+ f->listen_int = (u16 *) OFFSET(f->hdr, WLAN_REASSOCREQ_OFF_LISTEN_INT);
31945+ f->curr_ap = (u8 *) OFFSET(f->hdr, WLAN_REASSOCREQ_OFF_CURR_AP);
31946+
31947+ /*-- Information elements */
31948+ ie_ptr = OFFSET(f->hdr, WLAN_REASSOCREQ_OFF_SSID);
31949+ while (ie_ptr < end) {
31950+ switch (IE_EID(ie_ptr)) {
31951+ case WLAN_EID_SSID:
31952+ f->ssid = (wlan_ie_ssid_t *) ie_ptr;
31953+ break;
31954+ case WLAN_EID_SUPP_RATES:
31955+ f->supp_rates = (wlan_ie_supp_rates_t *) ie_ptr;
31956+ break;
31957+ case WLAN_EID_EXT_RATES:
31958+ f->ext_rates = (wlan_ie_supp_rates_t *) ie_ptr;
31959+ break;
31960+ default:
31961+ LOG_BAD_EID(f->hdr, f->len, ie_ptr);
31962+ break;
31963+ }
31964+ ie_ptr = ie_ptr + 2 + IE_LEN(ie_ptr);
31965+ }
31966+}
31967+
31968+
31969+void
31970+wlan_mgmt_decode_reassocresp(wlan_fr_reassocresp_t * f)
31971+{
31972+ f->type = WLAN_FSTYPE_REASSOCRESP;
31973+
31974+ /*-- Fixed Fields ----*/
31975+ f->cap_info = (u16 *) OFFSET(f->hdr, WLAN_REASSOCRESP_OFF_CAP_INFO);
31976+ f->status = (u16 *) OFFSET(f->hdr, WLAN_REASSOCRESP_OFF_STATUS);
31977+ f->aid = (u16 *) OFFSET(f->hdr, WLAN_REASSOCRESP_OFF_AID);
31978+
31979+ /*-- Information elements */
31980+ f->supp_rates = (wlan_ie_supp_rates_t *)
31981+ OFFSET(f->hdr, WLAN_REASSOCRESP_OFF_SUPP_RATES);
31982+}
31983+
31984+
31985+void
31986+wlan_mgmt_decode_probereq(wlan_fr_probereq_t * f)
31987+{
31988+ u8 *ie_ptr;
31989+ u8 *end = (u8*)f->hdr + f->len;
31990+
31991+ f->type = WLAN_FSTYPE_PROBEREQ;
31992+
31993+ /*-- Fixed Fields ----*/
31994+
31995+ /*-- Information elements */
31996+ ie_ptr = OFFSET(f->hdr, WLAN_PROBEREQ_OFF_SSID);
31997+ while (ie_ptr < end) {
31998+ switch (IE_EID(ie_ptr)) {
31999+ case WLAN_EID_SSID:
32000+ f->ssid = (wlan_ie_ssid_t *) ie_ptr;
32001+ break;
32002+ case WLAN_EID_SUPP_RATES:
32003+ f->supp_rates = (wlan_ie_supp_rates_t *) ie_ptr;
32004+ break;
32005+ case WLAN_EID_EXT_RATES:
32006+ f->ext_rates = (wlan_ie_supp_rates_t *) ie_ptr;
32007+ break;
32008+ default:
32009+ LOG_BAD_EID(f->hdr, f->len, ie_ptr);
32010+ break;
32011+ }
32012+ ie_ptr = ie_ptr + 2 + IE_LEN(ie_ptr);
32013+ }
32014+}
32015+#endif /* UNUSED */
32016+
32017+
32018+/* TODO: decoding of beacon and proberesp can be merged (similar structure) */
32019+void
32020+wlan_mgmt_decode_proberesp(wlan_fr_proberesp_t * f)
32021+{
32022+ u8 *ie_ptr;
32023+ u8 *end = (u8*)f->hdr + f->len;
32024+
32025+ f->type = WLAN_FSTYPE_PROBERESP;
32026+
32027+ /*-- Fixed Fields ----*/
32028+ f->ts = (u64 *) OFFSET(f->hdr, WLAN_PROBERESP_OFF_TS);
32029+ f->bcn_int = (u16 *) OFFSET(f->hdr, WLAN_PROBERESP_OFF_BCN_INT);
32030+ f->cap_info = (u16 *) OFFSET(f->hdr, WLAN_PROBERESP_OFF_CAP_INFO);
32031+
32032+ /*-- Information elements */
32033+ ie_ptr = OFFSET(f->hdr, WLAN_PROBERESP_OFF_SSID);
32034+ while (ie_ptr < end) {
32035+ switch (IE_EID(ie_ptr)) {
32036+ case WLAN_EID_SSID:
32037+ f->ssid = (wlan_ie_ssid_t *) ie_ptr;
32038+ break;
32039+ case WLAN_EID_SUPP_RATES:
32040+ f->supp_rates = (wlan_ie_supp_rates_t *) ie_ptr;
32041+ break;
32042+ case WLAN_EID_EXT_RATES:
32043+ f->ext_rates = (wlan_ie_supp_rates_t *) ie_ptr;
32044+ break;
32045+ case WLAN_EID_FH_PARMS:
32046+ f->fh_parms = (wlan_ie_fh_parms_t *) ie_ptr;
32047+ break;
32048+ case WLAN_EID_DS_PARMS:
32049+ f->ds_parms = (wlan_ie_ds_parms_t *) ie_ptr;
32050+ break;
32051+ case WLAN_EID_CF_PARMS:
32052+ f->cf_parms = (wlan_ie_cf_parms_t *) ie_ptr;
32053+ break;
32054+ case WLAN_EID_IBSS_PARMS:
32055+ f->ibss_parms = (wlan_ie_ibss_parms_t *) ie_ptr;
32056+ break;
32057+#ifdef DONT_DO_IT_ADD_REAL_HANDLING_INSTEAD
32058+ case WLAN_EID_COUNTRY:
32059+ break;
32060+ ...
32061+#endif
32062+#ifdef SENT_HERE_BY_OPENWRT
32063+ /* should those be trapped or handled?? */
32064+ case WLAN_EID_ERP_INFO:
32065+ break;
32066+ case WLAN_EID_NONERP:
32067+ break;
32068+ case WLAN_EID_GENERIC:
32069+ break;
32070+#endif
32071+ default:
32072+ LOG_BAD_EID(f->hdr, f->len, ie_ptr);
32073+ break;
32074+ }
32075+
32076+ ie_ptr = ie_ptr + 2 + IE_LEN(ie_ptr);
32077+ }
32078+}
32079+
32080+
32081+void
32082+wlan_mgmt_decode_authen(wlan_fr_authen_t * f)
32083+{
32084+ u8 *ie_ptr;
32085+ u8 *end = (u8*)f->hdr + f->len;
32086+
32087+ f->type = WLAN_FSTYPE_AUTHEN;
32088+
32089+ /*-- Fixed Fields ----*/
32090+ f->auth_alg = (u16 *) OFFSET(f->hdr, WLAN_AUTHEN_OFF_AUTH_ALG);
32091+ f->auth_seq = (u16 *) OFFSET(f->hdr, WLAN_AUTHEN_OFF_AUTH_SEQ);
32092+ f->status = (u16 *) OFFSET(f->hdr, WLAN_AUTHEN_OFF_STATUS);
32093+
32094+ /*-- Information elements */
32095+ ie_ptr = OFFSET(f->hdr, WLAN_AUTHEN_OFF_CHALLENGE);
32096+ if ((ie_ptr < end) && (IE_EID(ie_ptr) == WLAN_EID_CHALLENGE)) {
32097+ f->challenge = (wlan_ie_challenge_t *) ie_ptr;
32098+ }
32099+}
32100+
32101+
32102+void
32103+wlan_mgmt_decode_deauthen(wlan_fr_deauthen_t * f)
32104+{
32105+ f->type = WLAN_FSTYPE_DEAUTHEN;
32106+
32107+ /*-- Fixed Fields ----*/
32108+ f->reason = (u16 *) OFFSET(f->hdr, WLAN_DEAUTHEN_OFF_REASON);
32109+
32110+ /*-- Information elements */
32111+}
32112Index: linux-2.6.22/drivers/net/wireless/acx/wlan_compat.h
32113===================================================================
32114--- /dev/null 1970-01-01 00:00:00.000000000 +0000
32115+++ linux-2.6.22/drivers/net/wireless/acx/wlan_compat.h 2007-08-23 18:34:19.000000000 +0200
32116@@ -0,0 +1,260 @@
32117+/***********************************************************************
32118+** Copyright (C) 2003 ACX100 Open Source Project
32119+**
32120+** The contents of this file are subject to the Mozilla Public
32121+** License Version 1.1 (the "License"); you may not use this file
32122+** except in compliance with the License. You may obtain a copy of
32123+** the License at http://www.mozilla.org/MPL/
32124+**
32125+** Software distributed under the License is distributed on an "AS
32126+** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
32127+** implied. See the License for the specific language governing
32128+** rights and limitations under the License.
32129+**
32130+** Alternatively, the contents of this file may be used under the
32131+** terms of the GNU Public License version 2 (the "GPL"), in which
32132+** case the provisions of the GPL are applicable instead of the
32133+** above. If you wish to allow the use of your version of this file
32134+** only under the terms of the GPL and not to allow others to use
32135+** your version of this file under the MPL, indicate your decision
32136+** by deleting the provisions above and replace them with the notice
32137+** and other provisions required by the GPL. If you do not delete
32138+** the provisions above, a recipient may use your version of this
32139+** file under either the MPL or the GPL.
32140+** ---------------------------------------------------------------------
32141+** Inquiries regarding the ACX100 Open Source Project can be
32142+** made directly to:
32143+**
32144+** acx100-users@lists.sf.net
32145+** http://acx100.sf.net
32146+** ---------------------------------------------------------------------
32147+*/
32148+
32149+/***********************************************************************
32150+** This code is based on elements which are
32151+** Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
32152+** info@linux-wlan.com
32153+** http://www.linux-wlan.com
32154+*/
32155+
32156+/*=============================================================*/
32157+/*------ Establish Platform Identity --------------------------*/
32158+/*=============================================================*/
32159+/* Key macros: */
32160+/* WLAN_CPU_FAMILY */
32161+#define WLAN_Ix86 1
32162+#define WLAN_PPC 2
32163+#define WLAN_Ix96 3
32164+#define WLAN_ARM 4
32165+#define WLAN_ALPHA 5
32166+#define WLAN_MIPS 6
32167+#define WLAN_HPPA 7
32168+#define WLAN_SPARC 8
32169+#define WLAN_SH 9
32170+#define WLAN_x86_64 10
32171+/* WLAN_CPU_CORE */
32172+#define WLAN_I386CORE 1
32173+#define WLAN_PPCCORE 2
32174+#define WLAN_I296 3
32175+#define WLAN_ARMCORE 4
32176+#define WLAN_ALPHACORE 5
32177+#define WLAN_MIPSCORE 6
32178+#define WLAN_HPPACORE 7
32179+/* WLAN_CPU_PART */
32180+#define WLAN_I386PART 1
32181+#define WLAN_MPC860 2
32182+#define WLAN_MPC823 3
32183+#define WLAN_I296SA 4
32184+#define WLAN_PPCPART 5
32185+#define WLAN_ARMPART 6
32186+#define WLAN_ALPHAPART 7
32187+#define WLAN_MIPSPART 8
32188+#define WLAN_HPPAPART 9
32189+/* WLAN_SYSARCH */
32190+#define WLAN_PCAT 1
32191+#define WLAN_MBX 2
32192+#define WLAN_RPX 3
32193+#define WLAN_LWARCH 4
32194+#define WLAN_PMAC 5
32195+#define WLAN_SKIFF 6
32196+#define WLAN_BITSY 7
32197+#define WLAN_ALPHAARCH 7
32198+#define WLAN_MIPSARCH 9
32199+#define WLAN_HPPAARCH 10
32200+/* WLAN_HOSTIF (generally set on the command line, not detected) */
32201+#define WLAN_PCMCIA 1
32202+#define WLAN_ISA 2
32203+#define WLAN_PCI 3
32204+#define WLAN_USB 4
32205+#define WLAN_PLX 5
32206+
32207+/* Note: the PLX HOSTIF above refers to some vendors implementations for */
32208+/* PCI. It's a PLX chip that is a PCI to PCMCIA adapter, but it */
32209+/* isn't a real PCMCIA host interface adapter providing all the */
32210+/* card&socket services. */
32211+
32212+#ifdef __powerpc__
32213+#ifndef __ppc__
32214+#define __ppc__
32215+#endif
32216+#endif
32217+
32218+#if (defined(CONFIG_PPC) || defined(CONFIG_8xx))
32219+#ifndef __ppc__
32220+#define __ppc__
32221+#endif
32222+#endif
32223+
32224+#if defined(__x86_64__)
32225+ #define WLAN_CPU_FAMILY WLAN_x86_64
32226+ #define WLAN_SYSARCH WLAN_PCAT
32227+#elif defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__)
32228+ #define WLAN_CPU_FAMILY WLAN_Ix86
32229+ #define WLAN_CPU_CORE WLAN_I386CORE
32230+ #define WLAN_CPU_PART WLAN_I386PART
32231+ #define WLAN_SYSARCH WLAN_PCAT
32232+#elif defined(__ppc__)
32233+ #define WLAN_CPU_FAMILY WLAN_PPC
32234+ #define WLAN_CPU_CORE WLAN_PPCCORE
32235+ #if defined(CONFIG_MBX)
32236+ #define WLAN_CPU_PART WLAN_MPC860
32237+ #define WLAN_SYSARCH WLAN_MBX
32238+ #elif defined(CONFIG_RPXLITE)
32239+ #define WLAN_CPU_PART WLAN_MPC823
32240+ #define WLAN_SYSARCH WLAN_RPX
32241+ #elif defined(CONFIG_RPXCLASSIC)
32242+ #define WLAN_CPU_PART WLAN_MPC860
32243+ #define WLAN_SYSARCH WLAN_RPX
32244+ #else
32245+ #define WLAN_CPU_PART WLAN_PPCPART
32246+ #define WLAN_SYSARCH WLAN_PMAC
32247+ #endif
32248+#elif defined(__arm__)
32249+ #define WLAN_CPU_FAMILY WLAN_ARM
32250+ #define WLAN_CPU_CORE WLAN_ARMCORE
32251+ #define WLAN_CPU_PART WLAN_ARM_PART
32252+ #define WLAN_SYSARCH WLAN_SKIFF
32253+#elif defined(__alpha__)
32254+ #define WLAN_CPU_FAMILY WLAN_ALPHA
32255+ #define WLAN_CPU_CORE WLAN_ALPHACORE
32256+ #define WLAN_CPU_PART WLAN_ALPHAPART
32257+ #define WLAN_SYSARCH WLAN_ALPHAARCH
32258+#elif defined(__mips__)
32259+ #define WLAN_CPU_FAMILY WLAN_MIPS
32260+ #define WLAN_CPU_CORE WLAN_MIPSCORE
32261+ #define WLAN_CPU_PART WLAN_MIPSPART
32262+ #define WLAN_SYSARCH WLAN_MIPSARCH
32263+#elif defined(__hppa__)
32264+ #define WLAN_CPU_FAMILY WLAN_HPPA
32265+ #define WLAN_CPU_CORE WLAN_HPPACORE
32266+ #define WLAN_CPU_PART WLAN_HPPAPART
32267+ #define WLAN_SYSARCH WLAN_HPPAARCH
32268+#elif defined(__sparc__)
32269+ #define WLAN_CPU_FAMILY WLAN_SPARC
32270+ #define WLAN_SYSARCH WLAN_SPARC
32271+#elif defined(__sh__)
32272+ #define WLAN_CPU_FAMILY WLAN_SH
32273+ #define WLAN_SYSARCH WLAN_SHARCH
32274+ #ifndef __LITTLE_ENDIAN__
32275+ #define __LITTLE_ENDIAN__
32276+ #endif
32277+#else
32278+ #error "No CPU identified!"
32279+#endif
32280+
32281+/*
32282+ Some big endian machines implicitly do all I/O in little endian mode.
32283+
32284+ In particular:
32285+ Linux/PPC on PowerMacs (PCI)
32286+ Arm/Intel Xscale (PCI)
32287+
32288+ This may also affect PLX boards and other BE &| PPC platforms;
32289+ as new ones are discovered, add them below.
32290+*/
32291+
32292+#if ((WLAN_SYSARCH == WLAN_SKIFF) || (WLAN_SYSARCH == WLAN_PMAC))
32293+#define REVERSE_ENDIAN
32294+#endif
32295+
32296+/*=============================================================*/
32297+/*------ Hardware Portability Macros --------------------------*/
32298+/*=============================================================*/
32299+#if (WLAN_CPU_FAMILY == WLAN_PPC)
32300+#define wlan_inw(a) in_be16((unsigned short *)((a)+_IO_BASE))
32301+#define wlan_inw_le16_to_cpu(a) inw((a))
32302+#define wlan_outw(v,a) out_be16((unsigned short *)((a)+_IO_BASE), (v))
32303+#define wlan_outw_cpu_to_le16(v,a) outw((v),(a))
32304+#else
32305+#define wlan_inw(a) inw((a))
32306+#define wlan_inw_le16_to_cpu(a) __cpu_to_le16(inw((a)))
32307+#define wlan_outw(v,a) outw((v),(a))
32308+#define wlan_outw_cpu_to_le16(v,a) outw(__cpu_to_le16((v)),(a))
32309+#endif
32310+
32311+/*=============================================================*/
32312+/*------ Bit settings -----------------------------------------*/
32313+/*=============================================================*/
32314+#define ieee2host16(n) __le16_to_cpu(n)
32315+#define ieee2host32(n) __le32_to_cpu(n)
32316+#define host2ieee16(n) __cpu_to_le16(n)
32317+#define host2ieee32(n) __cpu_to_le32(n)
32318+
32319+/* for constants */
32320+#ifdef __LITTLE_ENDIAN
32321+ #define IEEE16(a,n) a = n, a##i = n,
32322+#else
32323+ #ifdef __BIG_ENDIAN
32324+ /* shifts would produce gcc warnings. Oh well... */
32325+ #define IEEE16(a,n) a = n, a##i = ((n&0xff)*256 + ((n&0xff00)/256)),
32326+ #else
32327+ #error give me endianness or give me death
32328+ #endif
32329+#endif
32330+
32331+/*=============================================================*/
32332+/*------ Compiler Portability Macros --------------------------*/
32333+/*=============================================================*/
32334+#define WLAN_PACKED __attribute__ ((packed))
32335+
32336+/* Interrupt handler backwards compatibility stuff */
32337+#ifndef IRQ_NONE
32338+#define IRQ_NONE
32339+#define IRQ_HANDLED
32340+typedef void irqreturn_t;
32341+#endif
32342+
32343+#ifndef ARPHRD_IEEE80211_PRISM
32344+#define ARPHRD_IEEE80211_PRISM 802
32345+#endif
32346+
32347+#define ETH_P_80211_RAW (ETH_P_ECONET + 1)
32348+
32349+/*============================================================================*
32350+ * Constants *
32351+ *============================================================================*/
32352+#define WLAN_IEEE_OUI_LEN 3
32353+
32354+/*============================================================================*
32355+ * Types *
32356+ *============================================================================*/
32357+
32358+/* local ether header type */
32359+typedef struct wlan_ethhdr {
32360+ u8 daddr[ETH_ALEN];
32361+ u8 saddr[ETH_ALEN];
32362+ u16 type;
32363+} WLAN_PACKED wlan_ethhdr_t;
32364+
32365+/* local llc header type */
32366+typedef struct wlan_llc {
32367+ u8 dsap;
32368+ u8 ssap;
32369+ u8 ctl;
32370+} WLAN_PACKED wlan_llc_t;
32371+
32372+/* local snap header type */
32373+typedef struct wlan_snap {
32374+ u8 oui[WLAN_IEEE_OUI_LEN];
32375+ u16 type;
32376+} WLAN_PACKED wlan_snap_t;
32377Index: linux-2.6.22/drivers/net/wireless/acx/wlan_hdr.h
32378===================================================================
32379--- /dev/null 1970-01-01 00:00:00.000000000 +0000
32380+++ linux-2.6.22/drivers/net/wireless/acx/wlan_hdr.h 2007-08-23 18:34:19.000000000 +0200
32381@@ -0,0 +1,497 @@
32382+/***********************************************************************
32383+** Copyright (C) 2003 ACX100 Open Source Project
32384+**
32385+** The contents of this file are subject to the Mozilla Public
32386+** License Version 1.1 (the "License"); you may not use this file
32387+** except in compliance with the License. You may obtain a copy of
32388+** the License at http://www.mozilla.org/MPL/
32389+**
32390+** Software distributed under the License is distributed on an "AS
32391+** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
32392+** implied. See the License for the specific language governing
32393+** rights and limitations under the License.
32394+**
32395+** Alternatively, the contents of this file may be used under the
32396+** terms of the GNU Public License version 2 (the "GPL"), in which
32397+** case the provisions of the GPL are applicable instead of the
32398+** above. If you wish to allow the use of your version of this file
32399+** only under the terms of the GPL and not to allow others to use
32400+** your version of this file under the MPL, indicate your decision
32401+** by deleting the provisions above and replace them with the notice
32402+** and other provisions required by the GPL. If you do not delete
32403+** the provisions above, a recipient may use your version of this
32404+** file under either the MPL or the GPL.
32405+** ---------------------------------------------------------------------
32406+** Inquiries regarding the ACX100 Open Source Project can be
32407+** made directly to:
32408+**
32409+** acx100-users@lists.sf.net
32410+** http://acx100.sf.net
32411+** ---------------------------------------------------------------------
32412+*/
32413+
32414+/***********************************************************************
32415+** This code is based on elements which are
32416+** Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
32417+** info@linux-wlan.com
32418+** http://www.linux-wlan.com
32419+*/
32420+
32421+/* mini-doc
32422+
32423+Here are all 11b/11g/11a rates and modulations:
32424+
32425+ 11b 11g 11a
32426+ --- --- ---
32427+ 1 |B |B |
32428+ 2 |Q |Q |
32429+ 5.5|Cp |C p|
32430+ 6 | |Od |O
32431+ 9 | |od |o
32432+11 |Cp |C p|
32433+12 | |Od |O
32434+18 | |od |o
32435+22 | | p|
32436+24 | |Od |O
32437+33 | | p|
32438+36 | |od |o
32439+48 | |od |o
32440+54 | |od |o
32441+
32442+Mandatory:
32443+ B - DBPSK (Differential Binary Phase Shift Keying)
32444+ Q - DQPSK (Differential Quaternary Phase Shift Keying)
32445+ C - CCK (Complementary Code Keying, a form of DSSS
32446+ (Direct Sequence Spread Spectrum) modulation)
32447+ O - OFDM (Orthogonal Frequency Division Multiplexing)
32448+Optional:
32449+ o - OFDM
32450+ d - CCK-OFDM (also known as DSSS-OFDM)
32451+ p - PBCC (Packet Binary Convolutional Coding)
32452+
32453+The term CCK-OFDM may be used interchangeably with DSSS-OFDM
32454+(the IEEE 802.11g-2003 standard uses the latter terminology).
32455+In the CCK-OFDM, the PLCP header of the frame uses the CCK form of DSSS,
32456+while the PLCP payload (the MAC frame) is modulated using OFDM.
32457+
32458+Basically, you must use CCK-OFDM if you have mixed 11b/11g environment,
32459+or else (pure OFDM) 11b equipment may not realize that AP
32460+is sending a packet and start sending its own one.
32461+Sadly, looks like acx111 does not support CCK-OFDM, only pure OFDM.
32462+
32463+Re PBCC: avoid using it. It makes sense only if you have
32464+TI "11b+" hardware. You _must_ use PBCC in order to reach 22Mbps on it.
32465+
32466+Preambles:
32467+
32468+Long preamble (at 1Mbit rate, takes 144 us):
32469+ 16 bytes ones
32470+ 2 bytes 0xF3A0 (lsb sent first)
32471+PLCP header follows (at 1Mbit also):
32472+ 1 byte Signal: speed, in 0.1Mbit units, except for:
32473+ 33Mbit: 33 (instead of 330 - doesn't fit in octet)
32474+ all CCK-OFDM rates: 30
32475+ 1 byte Service
32476+ 0,1,4: reserved
32477+ 2: 1=locked clock
32478+ 3: 1=PBCC
32479+ 5: Length Extension (PBCC 22,33Mbit (11g only)) <-
32480+ 6: Length Extension (PBCC 22,33Mbit (11g only)) <- BLACK MAGIC HERE
32481+ 7: Length Extension <-
32482+ 2 bytes Length (time needed to tx this frame)
32483+ a) 5.5 Mbit/s CCK
32484+ Length = octets*8/5.5, rounded up to integer
32485+ b) 11 Mbit/s CCK
32486+ Length = octets*8/11, rounded up to integer
32487+ Service bit 7:
32488+ 0 = rounding took less than 8/11
32489+ 1 = rounding took more than or equal to 8/11
32490+ c) 5.5 Mbit/s PBCC
32491+ Length = (octets+1)*8/5.5, rounded up to integer
32492+ d) 11 Mbit/s PBCC
32493+ Length = (octets+1)*8/11, rounded up to integer
32494+ Service bit 7:
32495+ 0 = rounding took less than 8/11
32496+ 1 = rounding took more than or equal to 8/11
32497+ e) 22 Mbit/s PBCC
32498+ Length = (octets+1)*8/22, rounded up to integer
32499+ Service bits 6,7:
32500+ 00 = rounding took less than 8/22ths
32501+ 01 = rounding took 8/22...15/22ths
32502+ 10 = rounding took 16/22ths or more.
32503+ f) 33 Mbit/s PBCC
32504+ Length = (octets+1)*8/33, rounded up to integer
32505+ Service bits 5,6,7:
32506+ 000 rounding took less than 8/33
32507+ 001 rounding took 8/33...15/33
32508+ 010 rounding took 16/33...23/33
32509+ 011 rounding took 24/33...31/33
32510+ 100 rounding took 32/33 or more
32511+ 2 bytes CRC
32512+
32513+PSDU follows (up to 2346 bytes at selected rate)
32514+
32515+While Signal value alone is not enough to determine rate and modulation,
32516+Signal+Service is always sufficient.
32517+
32518+Short preamble (at 1Mbit rate, takes 72 us):
32519+ 7 bytes zeroes
32520+ 2 bytes 0x05CF (lsb sent first)
32521+PLCP header follows *at 2Mbit/s*. Format is the same as in long preamble.
32522+PSDU follows (up to 2346 bytes at selected rate)
32523+
32524+OFDM preamble is completely different, uses OFDM
32525+modulation from the start and thus easily identifiable.
32526+Not shown here.
32527+*/
32528+
32529+
32530+/***********************************************************************
32531+** Constants
32532+*/
32533+
32534+#define WLAN_HDR_A3_LEN 24
32535+#define WLAN_HDR_A4_LEN 30
32536+/* IV structure:
32537+** 3 bytes: Initialization Vector (24 bits)
32538+** 1 byte: 0..5: padding, must be 0; 6..7: key selector (0-3)
32539+*/
32540+#define WLAN_WEP_IV_LEN 4
32541+/* 802.11 says 2312 but looks like 2312 is a max size of _WEPed data_ */
32542+#define WLAN_DATA_MAXLEN 2304
32543+#define WLAN_WEP_ICV_LEN 4
32544+#define WLAN_FCS_LEN 4
32545+#define WLAN_A3FR_MAXLEN (WLAN_HDR_A3_LEN + WLAN_DATA_MAXLEN)
32546+#define WLAN_A4FR_MAXLEN (WLAN_HDR_A4_LEN + WLAN_DATA_MAXLEN)
32547+#define WLAN_A3FR_MAXLEN_FCS (WLAN_HDR_A3_LEN + WLAN_DATA_MAXLEN + 4)
32548+#define WLAN_A4FR_MAXLEN_FCS (WLAN_HDR_A4_LEN + WLAN_DATA_MAXLEN + 4)
32549+#define WLAN_A3FR_MAXLEN_WEP (WLAN_A3FR_MAXLEN + 8)
32550+#define WLAN_A4FR_MAXLEN_WEP (WLAN_A4FR_MAXLEN + 8)
32551+#define WLAN_A3FR_MAXLEN_WEP_FCS (WLAN_A3FR_MAXLEN_FCS + 8)
32552+#define WLAN_A4FR_MAXLEN_WEP_FCS (WLAN_A4FR_MAXLEN_FCS + 8)
32553+
32554+#define WLAN_BSS_TS_LEN 8
32555+#define WLAN_SSID_MAXLEN 32
32556+#define WLAN_BEACON_FR_MAXLEN (WLAN_HDR_A3_LEN + 334)
32557+#define WLAN_ATIM_FR_MAXLEN (WLAN_HDR_A3_LEN + 0)
32558+#define WLAN_DISASSOC_FR_MAXLEN (WLAN_HDR_A3_LEN + 2)
32559+#define WLAN_ASSOCREQ_FR_MAXLEN (WLAN_HDR_A3_LEN + 48)
32560+#define WLAN_ASSOCRESP_FR_MAXLEN (WLAN_HDR_A3_LEN + 16)
32561+#define WLAN_REASSOCREQ_FR_MAXLEN (WLAN_HDR_A3_LEN + 54)
32562+#define WLAN_REASSOCRESP_FR_MAXLEN (WLAN_HDR_A3_LEN + 16)
32563+#define WLAN_PROBEREQ_FR_MAXLEN (WLAN_HDR_A3_LEN + 44)
32564+#define WLAN_PROBERESP_FR_MAXLEN (WLAN_HDR_A3_LEN + 78)
32565+#define WLAN_AUTHEN_FR_MAXLEN (WLAN_HDR_A3_LEN + 261)
32566+#define WLAN_DEAUTHEN_FR_MAXLEN (WLAN_HDR_A3_LEN + 2)
32567+#define WLAN_CHALLENGE_IE_LEN 130
32568+#define WLAN_CHALLENGE_LEN 128
32569+#define WLAN_WEP_MAXKEYLEN 13
32570+#define WLAN_WEP_NKEYS 4
32571+
32572+/*--- Frame Control Field -------------------------------------*/
32573+/* Frame Types */
32574+#define WLAN_FTYPE_MGMT 0x00
32575+#define WLAN_FTYPE_CTL 0x01
32576+#define WLAN_FTYPE_DATA 0x02
32577+
32578+/* Frame subtypes */
32579+/* Management */
32580+#define WLAN_FSTYPE_ASSOCREQ 0x00
32581+#define WLAN_FSTYPE_ASSOCRESP 0x01
32582+#define WLAN_FSTYPE_REASSOCREQ 0x02
32583+#define WLAN_FSTYPE_REASSOCRESP 0x03
32584+#define WLAN_FSTYPE_PROBEREQ 0x04
32585+#define WLAN_FSTYPE_PROBERESP 0x05
32586+#define WLAN_FSTYPE_BEACON 0x08
32587+#define WLAN_FSTYPE_ATIM 0x09
32588+#define WLAN_FSTYPE_DISASSOC 0x0a
32589+#define WLAN_FSTYPE_AUTHEN 0x0b
32590+#define WLAN_FSTYPE_DEAUTHEN 0x0c
32591+
32592+/* Control */
32593+#define WLAN_FSTYPE_PSPOLL 0x0a
32594+#define WLAN_FSTYPE_RTS 0x0b
32595+#define WLAN_FSTYPE_CTS 0x0c
32596+#define WLAN_FSTYPE_ACK 0x0d
32597+#define WLAN_FSTYPE_CFEND 0x0e
32598+#define WLAN_FSTYPE_CFENDCFACK 0x0f
32599+
32600+/* Data */
32601+#define WLAN_FSTYPE_DATAONLY 0x00
32602+#define WLAN_FSTYPE_DATA_CFACK 0x01
32603+#define WLAN_FSTYPE_DATA_CFPOLL 0x02
32604+#define WLAN_FSTYPE_DATA_CFACK_CFPOLL 0x03
32605+#define WLAN_FSTYPE_NULL 0x04
32606+#define WLAN_FSTYPE_CFACK 0x05
32607+#define WLAN_FSTYPE_CFPOLL 0x06
32608+#define WLAN_FSTYPE_CFACK_CFPOLL 0x07
32609+
32610+/*--- FC Constants v. 2.0 ------------------------------------*/
32611+/* Each constant is defined twice: WF_CONST is in host */
32612+/* byteorder, WF_CONSTi is in ieee byteorder. */
32613+/* Usage: */
32614+/* printf("the frame subtype is %X", WF_FC_FTYPEi & rx.fc); */
32615+/* tx.fc = WF_FTYPE_CTLi | WF_FSTYPE_RTSi; */
32616+/*------------------------------------------------------------*/
32617+
32618+enum {
32619+/*--- Frame Control Field -------------------------------------*/
32620+/* Protocol version: always 0 for current 802.11 standards */
32621+IEEE16(WF_FC_PVER, 0x0003)
32622+IEEE16(WF_FC_FTYPE, 0x000c)
32623+IEEE16(WF_FC_FSTYPE, 0x00f0)
32624+IEEE16(WF_FC_TODS, 0x0100)
32625+IEEE16(WF_FC_FROMDS, 0x0200)
32626+IEEE16(WF_FC_FROMTODS, 0x0300)
32627+IEEE16(WF_FC_MOREFRAG, 0x0400)
32628+IEEE16(WF_FC_RETRY, 0x0800)
32629+/* Indicates PS mode in which STA will be after successful completion
32630+** of current frame exchange sequence. Always 0 for AP frames */
32631+IEEE16(WF_FC_PWRMGT, 0x1000)
32632+/* What MoreData=1 means:
32633+** From AP to STA in PS mode: don't sleep yet, I have more frames for you
32634+** From Contention-Free (CF) Pollable STA in response to a CF-Poll:
32635+** STA has buffered frames for transmission in response to next CF-Poll
32636+** Bcast/mcast frames transmitted from AP:
32637+** when additional bcast/mcast frames remain to be transmitted by AP
32638+** during this beacon interval
32639+** In all other cases MoreData=0 */
32640+IEEE16(WF_FC_MOREDATA, 0x2000)
32641+IEEE16(WF_FC_ISWEP, 0x4000)
32642+IEEE16(WF_FC_ORDER, 0x8000)
32643+
32644+/* Frame Types */
32645+IEEE16(WF_FTYPE_MGMT, 0x00)
32646+IEEE16(WF_FTYPE_CTL, 0x04)
32647+IEEE16(WF_FTYPE_DATA, 0x08)
32648+
32649+/* Frame subtypes */
32650+/* Management */
32651+IEEE16(WF_FSTYPE_ASSOCREQ, 0x00)
32652+IEEE16(WF_FSTYPE_ASSOCRESP, 0x10)
32653+IEEE16(WF_FSTYPE_REASSOCREQ, 0x20)
32654+IEEE16(WF_FSTYPE_REASSOCRESP, 0x30)
32655+IEEE16(WF_FSTYPE_PROBEREQ, 0x40)
32656+IEEE16(WF_FSTYPE_PROBERESP, 0x50)
32657+IEEE16(WF_FSTYPE_BEACON, 0x80)
32658+IEEE16(WF_FSTYPE_ATIM, 0x90)
32659+IEEE16(WF_FSTYPE_DISASSOC, 0xa0)
32660+IEEE16(WF_FSTYPE_AUTHEN, 0xb0)
32661+IEEE16(WF_FSTYPE_DEAUTHEN, 0xc0)
32662+
32663+/* Control */
32664+IEEE16(WF_FSTYPE_PSPOLL, 0xa0)
32665+IEEE16(WF_FSTYPE_RTS, 0xb0)
32666+IEEE16(WF_FSTYPE_CTS, 0xc0)
32667+IEEE16(WF_FSTYPE_ACK, 0xd0)
32668+IEEE16(WF_FSTYPE_CFEND, 0xe0)
32669+IEEE16(WF_FSTYPE_CFENDCFACK, 0xf0)
32670+
32671+/* Data */
32672+IEEE16(WF_FSTYPE_DATAONLY, 0x00)
32673+IEEE16(WF_FSTYPE_DATA_CFACK, 0x10)
32674+IEEE16(WF_FSTYPE_DATA_CFPOLL, 0x20)
32675+IEEE16(WF_FSTYPE_DATA_CFACK_CFPOLL, 0x30)
32676+IEEE16(WF_FSTYPE_NULL, 0x40)
32677+IEEE16(WF_FSTYPE_CFACK, 0x50)
32678+IEEE16(WF_FSTYPE_CFPOLL, 0x60)
32679+IEEE16(WF_FSTYPE_CFACK_CFPOLL, 0x70)
32680+};
32681+
32682+
32683+/***********************************************************************
32684+** Macros
32685+*/
32686+
32687+/*--- Duration Macros ----------------------------------------*/
32688+/* Macros to get/set the bitfields of the Duration Field */
32689+/* - the duration value is only valid when bit15 is zero */
32690+/* - the firmware handles these values, so I'm not going */
32691+/* to use these macros right now. */
32692+/*------------------------------------------------------------*/
32693+
32694+/*--- Sequence Control Macros -------------------------------*/
32695+/* Macros to get/set the bitfields of the Sequence Control */
32696+/* Field. */
32697+/*------------------------------------------------------------*/
32698+#define WLAN_GET_SEQ_FRGNUM(n) ((u16)(n) & 0x000f)
32699+#define WLAN_GET_SEQ_SEQNUM(n) (((u16)(n) & 0xfff0) >> 4)
32700+
32701+/*--- Data ptr macro -----------------------------------------*/
32702+/* Creates a u8* to the data portion of a frame */
32703+/* Assumes you're passing in a ptr to the beginning of the hdr*/
32704+/*------------------------------------------------------------*/
32705+#define WLAN_HDR_A3_DATAP(p) (((u8*)(p)) + WLAN_HDR_A3_LEN)
32706+#define WLAN_HDR_A4_DATAP(p) (((u8*)(p)) + WLAN_HDR_A4_LEN)
32707+
32708+
32709+/***********************************************************************
32710+** Types
32711+*/
32712+
32713+/* 802.11 header type
32714+**
32715+** Note the following:
32716+** a1 *always* is receiver's mac or bcast/mcast
32717+** a2 *always* is transmitter's mac, if a2 exists
32718+** seq: [0:3] frag#, [4:15] seq# - used for dup detection
32719+** (dups from retries have same seq#) */
32720+typedef struct wlan_hdr {
32721+ u16 fc;
32722+ u16 dur;
32723+ u8 a1[ETH_ALEN];
32724+ u8 a2[ETH_ALEN];
32725+ u8 a3[ETH_ALEN];
32726+ u16 seq;
32727+ u8 a4[ETH_ALEN];
32728+} WLAN_PACKED wlan_hdr_t;
32729+
32730+/* Separate structs for use if frame type is known */
32731+typedef struct wlan_hdr_a3 {
32732+ u16 fc;
32733+ u16 dur;
32734+ u8 a1[ETH_ALEN];
32735+ u8 a2[ETH_ALEN];
32736+ u8 a3[ETH_ALEN];
32737+ u16 seq;
32738+} WLAN_PACKED wlan_hdr_a3_t;
32739+
32740+typedef struct wlan_hdr_mgmt {
32741+ u16 fc;
32742+ u16 dur;
32743+ u8 da[ETH_ALEN];
32744+ u8 sa[ETH_ALEN];
32745+ u8 bssid[ETH_ALEN];
32746+ u16 seq;
32747+} WLAN_PACKED wlan_hdr_mgmt_t;
32748+
32749+#ifdef NOT_NEEDED_YET
32750+typedef struct { /* ad-hoc peer->peer (to/from DS = 0/0) */
32751+ u16 fc;
32752+ u16 dur;
32753+ u8 da[ETH_ALEN];
32754+ u8 sa[ETH_ALEN];
32755+ u8 bssid[ETH_ALEN];
32756+ u16 seq;
32757+} WLAN_PACKED ibss;
32758+typedef struct { /* ap->sta (to/from DS = 0/1) */
32759+ u16 fc;
32760+ u16 dur;
32761+ u8 da[ETH_ALEN];
32762+ u8 bssid[ETH_ALEN];
32763+ u8 sa[ETH_ALEN];
32764+ u16 seq;
32765+} WLAN_PACKED fromap;
32766+typedef struct { /* sta->ap (to/from DS = 1/0) */
32767+ u16 fc;
32768+ u16 dur;
32769+ u8 bssid[ETH_ALEN];
32770+ u8 sa[ETH_ALEN];
32771+ u8 da[ETH_ALEN];
32772+ u16 seq;
32773+} WLAN_PACKED toap;
32774+typedef struct { /* wds->wds (to/from DS = 1/1), the only 4addr pkt */
32775+ u16 fc;
32776+ u16 dur;
32777+ u8 ra[ETH_ALEN];
32778+ u8 ta[ETH_ALEN];
32779+ u8 da[ETH_ALEN];
32780+ u16 seq;
32781+ u8 sa[ETH_ALEN];
32782+} WLAN_PACKED wds;
32783+typedef struct { /* all management packets */
32784+ u16 fc;
32785+ u16 dur;
32786+ u8 da[ETH_ALEN];
32787+ u8 sa[ETH_ALEN];
32788+ u8 bssid[ETH_ALEN];
32789+ u16 seq;
32790+} WLAN_PACKED mgmt;
32791+typedef struct { /* has no body, just a FCS */
32792+ u16 fc;
32793+ u16 dur;
32794+ u8 ra[ETH_ALEN];
32795+ u8 ta[ETH_ALEN];
32796+} WLAN_PACKED rts;
32797+typedef struct { /* has no body, just a FCS */
32798+ u16 fc;
32799+ u16 dur;
32800+ u8 ra[ETH_ALEN];
32801+} WLAN_PACKED cts;
32802+typedef struct { /* has no body, just a FCS */
32803+ u16 fc;
32804+ u16 dur;
32805+ u8 ra[ETH_ALEN];
32806+} WLAN_PACKED ack;
32807+typedef struct { /* has no body, just a FCS */
32808+ u16 fc;
32809+ /* NB: this one holds Assoc ID in dur field: */
32810+ u16 aid;
32811+ u8 bssid[ETH_ALEN];
32812+ u8 ta[ETH_ALEN];
32813+} WLAN_PACKED pspoll;
32814+typedef struct { /* has no body, just a FCS */
32815+ u16 fc;
32816+ u16 dur;
32817+ u8 ra[ETH_ALEN];
32818+ u8 bssid[ETH_ALEN];
32819+} WLAN_PACKED cfend;
32820+typedef struct { /* has no body, just a FCS */
32821+ u16 fc;
32822+ u16 dur;
32823+ u8 ra[ETH_ALEN];
32824+ u8 bssid[ETH_ALEN];
32825+} WLAN_PACKED cfendcfack;
32826+#endif
32827+
32828+/* Prism header emulation (monitor mode) */
32829+typedef struct wlanitem_u32 {
32830+ u32 did;
32831+ u16 status;
32832+ u16 len;
32833+ u32 data;
32834+} WLAN_PACKED wlanitem_u32_t;
32835+#define WLANITEM_STATUS_data_ok 0
32836+#define WLANITEM_STATUS_no_value 1
32837+#define WLANITEM_STATUS_invalid_itemname 2
32838+#define WLANITEM_STATUS_invalid_itemdata 3
32839+#define WLANITEM_STATUS_missing_itemdata 4
32840+#define WLANITEM_STATUS_incomplete_itemdata 5
32841+#define WLANITEM_STATUS_invalid_msg_did 6
32842+#define WLANITEM_STATUS_invalid_mib_did 7
32843+#define WLANITEM_STATUS_missing_conv_func 8
32844+#define WLANITEM_STATUS_string_too_long 9
32845+#define WLANITEM_STATUS_data_out_of_range 10
32846+#define WLANITEM_STATUS_string_too_short 11
32847+#define WLANITEM_STATUS_missing_valid_func 12
32848+#define WLANITEM_STATUS_unknown 13
32849+#define WLANITEM_STATUS_invalid_did 14
32850+#define WLANITEM_STATUS_missing_print_func 15
32851+
32852+#define WLAN_DEVNAMELEN_MAX 16
32853+typedef struct wlansniffrm {
32854+ u32 msgcode;
32855+ u32 msglen;
32856+ u8 devname[WLAN_DEVNAMELEN_MAX];
32857+ wlanitem_u32_t hosttime;
32858+ wlanitem_u32_t mactime;
32859+ wlanitem_u32_t channel;
32860+ wlanitem_u32_t rssi;
32861+ wlanitem_u32_t sq;
32862+ wlanitem_u32_t signal;
32863+ wlanitem_u32_t noise;
32864+ wlanitem_u32_t rate;
32865+ wlanitem_u32_t istx; /* tx? 0:no 1:yes */
32866+ wlanitem_u32_t frmlen;
32867+} WLAN_PACKED wlansniffrm_t;
32868+#define WLANSNIFFFRM 0x0041
32869+#define WLANSNIFFFRM_hosttime 0x1041
32870+#define WLANSNIFFFRM_mactime 0x2041
32871+#define WLANSNIFFFRM_channel 0x3041
32872+#define WLANSNIFFFRM_rssi 0x4041
32873+#define WLANSNIFFFRM_sq 0x5041
32874+#define WLANSNIFFFRM_signal 0x6041
32875+#define WLANSNIFFFRM_noise 0x7041
32876+#define WLANSNIFFFRM_rate 0x8041
32877+#define WLANSNIFFFRM_istx 0x9041
32878+#define WLANSNIFFFRM_frmlen 0xA041
32879Index: linux-2.6.22/drivers/net/wireless/acx/wlan_mgmt.h
32880===================================================================
32881--- /dev/null 1970-01-01 00:00:00.000000000 +0000
32882+++ linux-2.6.22/drivers/net/wireless/acx/wlan_mgmt.h 2007-08-23 18:34:19.000000000 +0200
32883@@ -0,0 +1,582 @@
32884+/***********************************************************************
32885+** Copyright (C) 2003 ACX100 Open Source Project
32886+**
32887+** The contents of this file are subject to the Mozilla Public
32888+** License Version 1.1 (the "License"); you may not use this file
32889+** except in compliance with the License. You may obtain a copy of
32890+** the License at http://www.mozilla.org/MPL/
32891+**
32892+** Software distributed under the License is distributed on an "AS
32893+** IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
32894+** implied. See the License for the specific language governing
32895+** rights and limitations under the License.
32896+**
32897+** Alternatively, the contents of this file may be used under the
32898+** terms of the GNU Public License version 2 (the "GPL"), in which
32899+** case the provisions of the GPL are applicable instead of the
32900+** above. If you wish to allow the use of your version of this file
32901+** only under the terms of the GPL and not to allow others to use
32902+** your version of this file under the MPL, indicate your decision
32903+** by deleting the provisions above and replace them with the notice
32904+** and other provisions required by the GPL. If you do not delete
32905+** the provisions above, a recipient may use your version of this
32906+** file under either the MPL or the GPL.
32907+** ---------------------------------------------------------------------
32908+** Inquiries regarding the ACX100 Open Source Project can be
32909+** made directly to:
32910+**
32911+** acx100-users@lists.sf.net
32912+** http://acx100.sf.net
32913+** ---------------------------------------------------------------------
32914+*/
32915+
32916+/***********************************************************************
32917+** This code is based on elements which are
32918+** Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
32919+** info@linux-wlan.com
32920+** http://www.linux-wlan.com
32921+*/
32922+
32923+/***********************************************************************
32924+** Constants
32925+*/
32926+
32927+/*-- Information Element IDs --------------------*/
32928+#define WLAN_EID_SSID 0
32929+#define WLAN_EID_SUPP_RATES 1
32930+#define WLAN_EID_FH_PARMS 2
32931+#define WLAN_EID_DS_PARMS 3
32932+#define WLAN_EID_CF_PARMS 4
32933+#define WLAN_EID_TIM 5
32934+#define WLAN_EID_IBSS_PARMS 6
32935+#define WLAN_EID_COUNTRY 7 /* 802.11d */
32936+#define WLAN_EID_FH_HOP_PARMS 8 /* 802.11d */
32937+#define WLAN_EID_FH_TABLE 9 /* 802.11d */
32938+#define WLAN_EID_REQUEST 10 /* 802.11d */
32939+/*-- values 11-15 reserved --*/
32940+#define WLAN_EID_CHALLENGE 16
32941+/*-- values 17-31 reserved for challenge text extension --*/
32942+#define WLAN_EID_PWR_CONSTRAINT 32 /* 11h PowerConstraint */
32943+#define WLAN_EID_ERP_INFO 42 /* was seen from WRT54GS with OpenWrt */
32944+#define WLAN_EID_NONERP 47 /* was seen from WRT54GS with OpenWrt */
32945+#define WLAN_EID_RSN 48
32946+#define WLAN_EID_EXT_RATES 50
32947+#define WLAN_EID_UNKNOWN128 128
32948+#define WLAN_EID_UNKNOWN133 133
32949+#define WLAN_EID_GENERIC 221 /* was seen from WRT54GS with OpenWrt */
32950+#define WLAN_EID_UNKNOWN223 223
32951+
32952+#if 0
32953+#define WLAN_EID_PWR_CAP 33 /* 11h PowerCapability */
32954+#define WLAN_EID_TPC_REQUEST 34 /* 11h TPC Request */
32955+#define WLAN_EID_TPC_REPORT 35 /* 11h TPC Report */
32956+#define WLAN_EID_SUPP_CHANNELS 36 /* 11h Supported Channels */
32957+#define WLAN_EID_CHANNEL_SWITCH 37 /* 11h ChannelSwitch */
32958+#define WLAN_EID_MEASURE_REQUEST 38 /* 11h MeasurementRequest */
32959+#define WLAN_EID_MEASURE_REPORT 39 /* 11h MeasurementReport */
32960+#define WLAN_EID_QUIET_ID 40 /* 11h Quiet */
32961+#define WLAN_EID_IBSS_DFS_ID 41 /* 11h IBSS_DFS */
32962+#endif
32963+
32964+/*-- Reason Codes -------------------------------*/
32965+#define WLAN_MGMT_REASON_RSVD 0
32966+#define WLAN_MGMT_REASON_UNSPEC 1
32967+#define WLAN_MGMT_REASON_PRIOR_AUTH_INVALID 2
32968+#define WLAN_MGMT_REASON_DEAUTH_LEAVING 3
32969+#define WLAN_MGMT_REASON_DISASSOC_INACTIVE 4
32970+#define WLAN_MGMT_REASON_DISASSOC_AP_BUSY 5
32971+#define WLAN_MGMT_REASON_CLASS2_NONAUTH 6
32972+#define WLAN_MGMT_REASON_CLASS3_NONASSOC 7
32973+#define WLAN_MGMT_REASON_DISASSOC_STA_HASLEFT 8
32974+#define WLAN_MGMT_REASON_CANT_ASSOC_NONAUTH 9
32975+
32976+/*-- Status Codes -------------------------------*/
32977+#define WLAN_MGMT_STATUS_SUCCESS 0
32978+#define WLAN_MGMT_STATUS_UNSPEC_FAILURE 1
32979+#define WLAN_MGMT_STATUS_CAPS_UNSUPPORTED 10
32980+#define WLAN_MGMT_STATUS_REASSOC_NO_ASSOC 11
32981+#define WLAN_MGMT_STATUS_ASSOC_DENIED_UNSPEC 12
32982+#define WLAN_MGMT_STATUS_UNSUPPORTED_AUTHALG 13
32983+#define WLAN_MGMT_STATUS_RX_AUTH_NOSEQ 14
32984+#define WLAN_MGMT_STATUS_CHALLENGE_FAIL 15
32985+#define WLAN_MGMT_STATUS_AUTH_TIMEOUT 16
32986+#define WLAN_MGMT_STATUS_ASSOC_DENIED_BUSY 17
32987+#define WLAN_MGMT_STATUS_ASSOC_DENIED_RATES 18
32988+/* p80211b additions */
32989+#define WLAN_MGMT_STATUS_ASSOC_DENIED_NOSHORT 19
32990+#define WLAN_MGMT_STATUS_ASSOC_DENIED_NOPBCC 20
32991+#define WLAN_MGMT_STATUS_ASSOC_DENIED_NOAGILITY 21
32992+
32993+/*-- Auth Algorithm Field ---------------------------*/
32994+#define WLAN_AUTH_ALG_OPENSYSTEM 0
32995+#define WLAN_AUTH_ALG_SHAREDKEY 1
32996+
32997+/*-- Management Frame Field Offsets -------------*/
32998+/* Note: Not all fields are listed because of variable lengths */
32999+/* Note: These offsets are from the start of the frame data */
33000+
33001+#define WLAN_BEACON_OFF_TS 0
33002+#define WLAN_BEACON_OFF_BCN_INT 8
33003+#define WLAN_BEACON_OFF_CAPINFO 10
33004+#define WLAN_BEACON_OFF_SSID 12
33005+
33006+#define WLAN_DISASSOC_OFF_REASON 0
33007+
33008+#define WLAN_ASSOCREQ_OFF_CAP_INFO 0
33009+#define WLAN_ASSOCREQ_OFF_LISTEN_INT 2
33010+#define WLAN_ASSOCREQ_OFF_SSID 4
33011+
33012+#define WLAN_ASSOCRESP_OFF_CAP_INFO 0
33013+#define WLAN_ASSOCRESP_OFF_STATUS 2
33014+#define WLAN_ASSOCRESP_OFF_AID 4
33015+#define WLAN_ASSOCRESP_OFF_SUPP_RATES 6
33016+
33017+#define WLAN_REASSOCREQ_OFF_CAP_INFO 0
33018+#define WLAN_REASSOCREQ_OFF_LISTEN_INT 2
33019+#define WLAN_REASSOCREQ_OFF_CURR_AP 4
33020+#define WLAN_REASSOCREQ_OFF_SSID 10
33021+
33022+#define WLAN_REASSOCRESP_OFF_CAP_INFO 0
33023+#define WLAN_REASSOCRESP_OFF_STATUS 2
33024+#define WLAN_REASSOCRESP_OFF_AID 4
33025+#define WLAN_REASSOCRESP_OFF_SUPP_RATES 6
33026+
33027+#define WLAN_PROBEREQ_OFF_SSID 0
33028+
33029+#define WLAN_PROBERESP_OFF_TS 0
33030+#define WLAN_PROBERESP_OFF_BCN_INT 8
33031+#define WLAN_PROBERESP_OFF_CAP_INFO 10
33032+#define WLAN_PROBERESP_OFF_SSID 12
33033+
33034+#define WLAN_AUTHEN_OFF_AUTH_ALG 0
33035+#define WLAN_AUTHEN_OFF_AUTH_SEQ 2
33036+#define WLAN_AUTHEN_OFF_STATUS 4
33037+#define WLAN_AUTHEN_OFF_CHALLENGE 6
33038+
33039+#define WLAN_DEAUTHEN_OFF_REASON 0
33040+
33041+enum {
33042+IEEE16(WF_MGMT_CAP_ESS, 0x0001)
33043+IEEE16(WF_MGMT_CAP_IBSS, 0x0002)
33044+/* In (re)assoc request frames by STA:
33045+** Pollable=0, PollReq=0: STA is not CF-Pollable
33046+** 0 1: STA is CF-Pollable, not requesting to be placed on the CF-Polling list
33047+** 1 0: STA is CF-Pollable, requesting to be placed on the CF-Polling list
33048+** 1 1: STA is CF-Pollable, requesting never to be polled
33049+** In beacon, proberesp, (re)assoc resp frames by AP:
33050+** 0 0: No point coordinator at AP
33051+** 0 1: Point coordinator at AP for delivery only (no polling)
33052+** 1 0: Point coordinator at AP for delivery and polling
33053+** 1 1: Reserved */
33054+IEEE16(WF_MGMT_CAP_CFPOLLABLE, 0x0004)
33055+IEEE16(WF_MGMT_CAP_CFPOLLREQ, 0x0008)
33056+/* 1=non-WEP data frames are disallowed */
33057+IEEE16(WF_MGMT_CAP_PRIVACY, 0x0010)
33058+/* In beacon, proberesp, (re)assocresp by AP/AdHoc:
33059+** 1=use of shortpre is allowed ("I can receive shortpre") */
33060+IEEE16(WF_MGMT_CAP_SHORT, 0x0020)
33061+IEEE16(WF_MGMT_CAP_PBCC, 0x0040)
33062+IEEE16(WF_MGMT_CAP_AGILITY, 0x0080)
33063+/* In (re)assoc request frames by STA:
33064+** 1=short slot time implemented and enabled
33065+** NB: AP shall use long slot time beginning at the next Beacon after assoc
33066+** of STA with this bit set to 0
33067+** In beacon, proberesp, (re)assoc resp frames by AP:
33068+** currently used slot time value: 0/1 - long/short */
33069+IEEE16(WF_MGMT_CAP_SHORTSLOT, 0x0400)
33070+/* In (re)assoc request frames by STA: 1=CCK-OFDM is implemented and enabled
33071+** In beacon, proberesp, (re)assoc resp frames by AP/AdHoc:
33072+** 1=CCK-OFDM is allowed */
33073+IEEE16(WF_MGMT_CAP_CCKOFDM, 0x2000)
33074+};
33075+
33076+
33077+/***********************************************************************
33078+** Types
33079+*/
33080+
33081+/* Information Element types */
33082+
33083+/* prototype structure, all IEs start with these members */
33084+typedef struct wlan_ie {
33085+ u8 eid;
33086+ u8 len;
33087+} WLAN_PACKED wlan_ie_t;
33088+
33089+/*-- Service Set Identity (SSID) -----------------*/
33090+typedef struct wlan_ie_ssid {
33091+ u8 eid;
33092+ u8 len;
33093+ u8 ssid[1]; /* may be zero */
33094+} WLAN_PACKED wlan_ie_ssid_t;
33095+
33096+/*-- Supported Rates -----------------------------*/
33097+typedef struct wlan_ie_supp_rates {
33098+ u8 eid;
33099+ u8 len;
33100+ u8 rates[1]; /* had better be at LEAST one! */
33101+} WLAN_PACKED wlan_ie_supp_rates_t;
33102+
33103+/*-- FH Parameter Set ----------------------------*/
33104+typedef struct wlan_ie_fh_parms {
33105+ u8 eid;
33106+ u8 len;
33107+ u16 dwell;
33108+ u8 hopset;
33109+ u8 hoppattern;
33110+ u8 hopindex;
33111+} WLAN_PACKED wlan_ie_fh_parms_t;
33112+
33113+/*-- DS Parameter Set ----------------------------*/
33114+typedef struct wlan_ie_ds_parms {
33115+ u8 eid;
33116+ u8 len;
33117+ u8 curr_ch;
33118+} WLAN_PACKED wlan_ie_ds_parms_t;
33119+
33120+/*-- CF Parameter Set ----------------------------*/
33121+typedef struct wlan_ie_cf_parms {
33122+ u8 eid;
33123+ u8 len;
33124+ u8 cfp_cnt;
33125+ u8 cfp_period;
33126+ u16 cfp_maxdur;
33127+ u16 cfp_durremaining;
33128+} WLAN_PACKED wlan_ie_cf_parms_t;
33129+
33130+/*-- TIM ------------------------------------------*/
33131+typedef struct wlan_ie_tim {
33132+ u8 eid;
33133+ u8 len;
33134+ u8 dtim_cnt;
33135+ u8 dtim_period;
33136+ u8 bitmap_ctl;
33137+ u8 virt_bm[1];
33138+} WLAN_PACKED wlan_ie_tim_t;
33139+
33140+/*-- IBSS Parameter Set ---------------------------*/
33141+typedef struct wlan_ie_ibss_parms {
33142+ u8 eid;
33143+ u8 len;
33144+ u16 atim_win;
33145+} WLAN_PACKED wlan_ie_ibss_parms_t;
33146+
33147+/*-- Challenge Text ------------------------------*/
33148+typedef struct wlan_ie_challenge {
33149+ u8 eid;
33150+ u8 len;
33151+ u8 challenge[1];
33152+} WLAN_PACKED wlan_ie_challenge_t;
33153+
33154+/*-- ERP (42) -------------------------------------*/
33155+typedef struct wlan_ie_erp {
33156+ u8 eid;
33157+ u8 len;
33158+ /* bit 0:Non ERP present
33159+ ** 1:Use Protection
33160+ ** 2:Barker Preamble mode
33161+ ** 3-7:reserved */
33162+ u8 erp;
33163+} WLAN_PACKED wlan_ie_erp_t;
33164+
33165+/* Types for parsing mgmt frames */
33166+
33167+/* prototype structure, all mgmt frame types will start with these members */
33168+typedef struct wlan_fr_mgmt {
33169+ u16 type;
33170+ u16 len; /* DOES NOT include FCS */
33171+ wlan_hdr_t *hdr;
33172+ /* used for target specific data, skb in Linux */
33173+ /*-- fixed fields -----------*/
33174+ /*-- info elements ----------*/
33175+} WLAN_PACKED wlan_fr_mgmt_t;
33176+
33177+/*-- Beacon ---------------------------------------*/
33178+typedef struct wlan_fr_beacon {
33179+ u16 type;
33180+ u16 len;
33181+ wlan_hdr_t *hdr;
33182+ /*-- fixed fields -----------*/
33183+ u64 *ts;
33184+ u16 *bcn_int;
33185+ u16 *cap_info;
33186+ /*-- info elements ----------*/
33187+ wlan_ie_ssid_t *ssid;
33188+ wlan_ie_supp_rates_t *supp_rates;
33189+ wlan_ie_supp_rates_t *ext_rates;
33190+ wlan_ie_fh_parms_t *fh_parms;
33191+ wlan_ie_ds_parms_t *ds_parms;
33192+ wlan_ie_cf_parms_t *cf_parms;
33193+ wlan_ie_ibss_parms_t *ibss_parms;
33194+ wlan_ie_tim_t *tim; /* in beacon only, not proberesp */
33195+ wlan_ie_erp_t *erp; /* in beacon only, not proberesp */
33196+} wlan_fr_beacon_t;
33197+#define wlan_fr_proberesp wlan_fr_beacon
33198+#define wlan_fr_proberesp_t wlan_fr_beacon_t
33199+
33200+/*-- IBSS ATIM ------------------------------------*/
33201+typedef struct wlan_fr_ibssatim {
33202+ u16 type;
33203+ u16 len;
33204+ wlan_hdr_t *hdr;
33205+ /*-- fixed fields -----------*/
33206+ /*-- info elements ----------*/
33207+ /* this frame type has a null body */
33208+} wlan_fr_ibssatim_t;
33209+
33210+/*-- Disassociation -------------------------------*/
33211+typedef struct wlan_fr_disassoc {
33212+ u16 type;
33213+ u16 len;
33214+ wlan_hdr_t *hdr;
33215+ /*-- fixed fields -----------*/
33216+ u16 *reason;
33217+ /*-- info elements ----------*/
33218+} wlan_fr_disassoc_t;
33219+
33220+/*-- Association Request --------------------------*/
33221+typedef struct wlan_fr_assocreq {
33222+ u16 type;
33223+ u16 len;
33224+ wlan_hdr_t *hdr;
33225+ /*-- fixed fields -----------*/
33226+ u16 *cap_info;
33227+ u16 *listen_int;
33228+ /*-- info elements ----------*/
33229+ wlan_ie_ssid_t *ssid;
33230+ wlan_ie_supp_rates_t *supp_rates;
33231+ wlan_ie_supp_rates_t *ext_rates;
33232+} wlan_fr_assocreq_t;
33233+
33234+/*-- Association Response -------------------------*/
33235+typedef struct wlan_fr_assocresp {
33236+ u16 type;
33237+ u16 len;
33238+ wlan_hdr_t *hdr;
33239+ /*-- fixed fields -----------*/
33240+ u16 *cap_info;
33241+ u16 *status;
33242+ u16 *aid;
33243+ /*-- info elements ----------*/
33244+ wlan_ie_supp_rates_t *supp_rates;
33245+ wlan_ie_supp_rates_t *ext_rates;
33246+} wlan_fr_assocresp_t;
33247+
33248+/*-- Reassociation Request ------------------------*/
33249+typedef struct wlan_fr_reassocreq {
33250+ u16 type;
33251+ u16 len;
33252+ wlan_hdr_t *hdr;
33253+ /*-- fixed fields -----------*/
33254+ u16 *cap_info;
33255+ u16 *listen_int;
33256+ u8 *curr_ap;
33257+ /*-- info elements ----------*/
33258+ wlan_ie_ssid_t *ssid;
33259+ wlan_ie_supp_rates_t *supp_rates;
33260+ wlan_ie_supp_rates_t *ext_rates;
33261+} wlan_fr_reassocreq_t;
33262+
33263+/*-- Reassociation Response -----------------------*/
33264+typedef struct wlan_fr_reassocresp {
33265+ u16 type;
33266+ u16 len;
33267+ wlan_hdr_t *hdr;
33268+ /*-- fixed fields -----------*/
33269+ u16 *cap_info;
33270+ u16 *status;
33271+ u16 *aid;
33272+ /*-- info elements ----------*/
33273+ wlan_ie_supp_rates_t *supp_rates;
33274+ wlan_ie_supp_rates_t *ext_rates;
33275+} wlan_fr_reassocresp_t;
33276+
33277+/*-- Probe Request --------------------------------*/
33278+typedef struct wlan_fr_probereq {
33279+ u16 type;
33280+ u16 len;
33281+ wlan_hdr_t *hdr;
33282+ /*-- fixed fields -----------*/
33283+ /*-- info elements ----------*/
33284+ wlan_ie_ssid_t *ssid;
33285+ wlan_ie_supp_rates_t *supp_rates;
33286+ wlan_ie_supp_rates_t *ext_rates;
33287+} wlan_fr_probereq_t;
33288+
33289+/*-- Authentication -------------------------------*/
33290+typedef struct wlan_fr_authen {
33291+ u16 type;
33292+ u16 len;
33293+ wlan_hdr_t *hdr;
33294+ /*-- fixed fields -----------*/
33295+ u16 *auth_alg;
33296+ u16 *auth_seq;
33297+ u16 *status;
33298+ /*-- info elements ----------*/
33299+ wlan_ie_challenge_t *challenge;
33300+} wlan_fr_authen_t;
33301+
33302+/*-- Deauthenication -----------------------------*/
33303+typedef struct wlan_fr_deauthen {
33304+ u16 type;
33305+ u16 len;
33306+ wlan_hdr_t *hdr;
33307+ /*-- fixed fields -----------*/
33308+ u16 *reason;
33309+ /*-- info elements ----------*/
33310+} wlan_fr_deauthen_t;
33311+
33312+/* Types for building mgmt frames */
33313+
33314+/* Warning. Several types used in below structs are
33315+** in fact variable length. Use structs with such fields with caution */
33316+typedef struct auth_frame_body {
33317+ u16 auth_alg;
33318+ u16 auth_seq;
33319+ u16 status;
33320+ wlan_ie_challenge_t challenge;
33321+} WLAN_PACKED auth_frame_body_t;
33322+
33323+typedef struct assocresp_frame_body {
33324+ u16 cap_info;
33325+ u16 status;
33326+ u16 aid;
33327+ wlan_ie_supp_rates_t rates;
33328+} WLAN_PACKED assocresp_frame_body_t;
33329+
33330+typedef struct reassocreq_frame_body {
33331+ u16 cap_info;
33332+ u16 listen_int;
33333+ u8 current_ap[ETH_ALEN];
33334+ wlan_ie_ssid_t ssid;
33335+/* access to this one is disabled since ssid_t is variable length: */
33336+ /* wlan_ie_supp_rates_t rates; */
33337+} WLAN_PACKED reassocreq_frame_body_t;
33338+
33339+typedef struct reassocresp_frame_body {
33340+ u16 cap_info;
33341+ u16 status;
33342+ u16 aid;
33343+ wlan_ie_supp_rates_t rates;
33344+} WLAN_PACKED reassocresp_frame_body_t;
33345+
33346+typedef struct deauthen_frame_body {
33347+ u16 reason;
33348+} WLAN_PACKED deauthen_frame_body_t;
33349+
33350+typedef struct disassoc_frame_body {
33351+ u16 reason;
33352+} WLAN_PACKED disassoc_frame_body_t;
33353+
33354+typedef struct probereq_frame_body {
33355+ wlan_ie_ssid_t ssid;
33356+ wlan_ie_supp_rates_t rates;
33357+} WLAN_PACKED probereq_frame_body_t;
33358+
33359+typedef struct proberesp_frame_body {
33360+ u8 timestamp[8];
33361+ u16 beacon_int;
33362+ u16 cap_info;
33363+ wlan_ie_ssid_t ssid;
33364+/* access to these is disabled since ssid_t is variable length: */
33365+ /* wlan_ie_supp_rates_t rates; */
33366+ /* fhps_t fhps; */
33367+ /* dsps_t dsps; */
33368+ /* cfps_t cfps; */
33369+} WLAN_PACKED proberesp_frame_body_t;
33370+
33371+
33372+/***********************************************************************
33373+** Functions
33374+*/
33375+
33376+/* Helpers for parsing mgmt frames */
33377+void wlan_mgmt_decode_ibssatim(wlan_fr_ibssatim_t *f);
33378+void wlan_mgmt_decode_assocreq(wlan_fr_assocreq_t *f);
33379+void wlan_mgmt_decode_assocresp(wlan_fr_assocresp_t *f);
33380+void wlan_mgmt_decode_authen(wlan_fr_authen_t *f);
33381+void wlan_mgmt_decode_beacon(wlan_fr_beacon_t *f);
33382+void wlan_mgmt_decode_deauthen(wlan_fr_deauthen_t *f);
33383+void wlan_mgmt_decode_disassoc(wlan_fr_disassoc_t *f);
33384+void wlan_mgmt_decode_probereq(wlan_fr_probereq_t *f);
33385+void wlan_mgmt_decode_proberesp(wlan_fr_proberesp_t *f);
33386+void wlan_mgmt_decode_reassocreq(wlan_fr_reassocreq_t *f);
33387+void wlan_mgmt_decode_reassocresp(wlan_fr_reassocresp_t *f);
33388+
33389+/* Helpers for building mgmt frames */
33390+static inline u8*
33391+wlan_fill_ie_ssid(u8 *p, int len, const char *ssid)
33392+{
33393+ struct wlan_ie_ssid *ie = (void*)p;
33394+ ie->eid = WLAN_EID_SSID;
33395+ ie->len = len;
33396+ memcpy(ie->ssid, ssid, len);
33397+ return p + len + 2;
33398+}
33399+/* This controls whether we create 802.11g 'ext supported rates' IEs
33400+** or just create overlong 'supported rates' IEs instead
33401+** (non-11g compliant) */
33402+#define WE_OBEY_802_11G 1
33403+static inline u8*
33404+wlan_fill_ie_rates(u8 *p, int len, const u8 *rates)
33405+{
33406+ struct wlan_ie_supp_rates *ie = (void*)p;
33407+#if WE_OBEY_802_11G
33408+ if (len > 8 ) len = 8;
33409+#endif
33410+ /* supported rates (1 to 8 octets) */
33411+ ie->eid = WLAN_EID_SUPP_RATES;
33412+ ie->len = len;
33413+ memcpy(ie->rates, rates, len);
33414+ return p + len + 2;
33415+}
33416+/* This one wouldn't create an IE at all if not needed */
33417+static inline u8*
33418+wlan_fill_ie_rates_ext(u8 *p, int len, const u8 *rates)
33419+{
33420+ struct wlan_ie_supp_rates *ie = (void*)p;
33421+#if !WE_OBEY_802_11G
33422+ return p;
33423+#endif
33424+ len -= 8;
33425+ if (len <= 0) return p;
33426+ /* ext supported rates */
33427+ ie->eid = WLAN_EID_EXT_RATES;
33428+ ie->len = len;
33429+ memcpy(ie->rates, rates+8, len);
33430+ return p + len + 2;
33431+}
33432+static inline u8*
33433+wlan_fill_ie_ds_parms(u8 *p, int channel)
33434+{
33435+ struct wlan_ie_ds_parms *ie = (void*)p;
33436+ ie->eid = WLAN_EID_DS_PARMS;
33437+ ie->len = 1;
33438+ ie->curr_ch = channel;
33439+ return p + sizeof(*ie);
33440+}
33441+static inline u8*
33442+wlan_fill_ie_ibss_parms(u8 *p, int atim_win)
33443+{
33444+ struct wlan_ie_ibss_parms *ie = (void*)p;
33445+ ie->eid = WLAN_EID_IBSS_PARMS;
33446+ ie->len = 2;
33447+ ie->atim_win = atim_win;
33448+ return p + sizeof(*ie);
33449+}
33450+static inline u8*
33451+wlan_fill_ie_tim(u8 *p, int rem, int period, int bcast,
33452+ int ofs, int len, const u8 *vbm)
33453+{
33454+ struct wlan_ie_tim *ie = (void*)p;
33455+ ie->eid = WLAN_EID_TIM;
33456+ ie->len = len + 3;
33457+ ie->dtim_cnt = rem;
33458+ ie->dtim_period = period;
33459+ ie->bitmap_ctl = ofs | (bcast!=0);
33460+ if (vbm)
33461+ memcpy(ie->virt_bm, vbm, len); /* min 1 byte */
33462+ else
33463+ ie->virt_bm[0] = 0;
33464+ return p + len + 3 + 2;
33465+}
33466Index: linux-2.6.22/drivers/net/wireless/Kconfig
33467===================================================================
33468--- linux-2.6.22.orig/drivers/net/wireless/Kconfig 2007-07-09 01:32:17.000000000 +0200
33469+++ linux-2.6.22/drivers/net/wireless/Kconfig 2007-08-23 18:34:19.000000000 +0200
33470@@ -5,6 +5,36 @@
33471 menu "Wireless LAN"
33472 depends on !S390
33473
33474+config NET_RADIO
33475+ bool "Wireless LAN drivers (non-hamradio) & Wireless Extensions"
33476+ select WIRELESS_EXT
33477+ ---help---
33478+ Support for wireless LANs and everything having to do with radio,
33479+ but not with amateur radio or FM broadcasting.
33480+
33481+ Saying Y here also enables the Wireless Extensions (creates
33482+ /proc/net/wireless and enables iwconfig access). The Wireless
33483+ Extension is a generic API allowing a driver to expose to the user
33484+ space configuration and statistics specific to common Wireless LANs.
33485+ The beauty of it is that a single set of tool can support all the
33486+ variations of Wireless LANs, regardless of their type (as long as
33487+ the driver supports Wireless Extension). Another advantage is that
33488+ these parameters may be changed on the fly without restarting the
33489+ driver (or Linux). If you wish to use Wireless Extensions with
33490+ wireless PCMCIA (PC-) cards, you need to say Y here; you can fetch
33491+ the tools from
33492+ <http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Tools.html>.
33493+
33494+config NET_WIRELESS_RTNETLINK
33495+ bool "Wireless Extension API over RtNetlink"
33496+ depends on NET_RADIO
33497+ ---help---
33498+ Support the Wireless Extension API over the RtNetlink socket
33499+ in addition to the traditional ioctl interface (selected above).
33500+
33501+ For now, few tools use this facility, but it might grow in the
33502+ future. The only downside is that it adds 4.5 kB to your kernel.
33503+
33504 config WLAN_PRE80211
33505 bool "Wireless LAN (pre-802.11)"
33506 depends on NETDEVICES
33507@@ -549,5 +579,6 @@
33508 source "drivers/net/wireless/hostap/Kconfig"
33509 source "drivers/net/wireless/bcm43xx/Kconfig"
33510 source "drivers/net/wireless/zd1211rw/Kconfig"
33511+source "drivers/net/wireless/acx/Kconfig"
33512
33513 endmenu
33514Index: linux-2.6.22/drivers/net/wireless/Makefile
33515===================================================================
33516--- linux-2.6.22.orig/drivers/net/wireless/Makefile 2007-07-09 01:32:17.000000000 +0200
33517+++ linux-2.6.22/drivers/net/wireless/Makefile 2007-08-23 18:34:19.000000000 +0200
33518@@ -34,6 +34,8 @@
33519
33520 obj-$(CONFIG_PRISM54) += prism54/
33521
33522+obj-$(CONFIG_ACX) += acx/
33523+
33524 obj-$(CONFIG_HOSTAP) += hostap/
33525 obj-$(CONFIG_BCM43XX) += bcm43xx/
33526 obj-$(CONFIG_ZD1211RW) += zd1211rw/
diff --git a/meta/packages/linux/linux-rp_2.6.22.bb b/meta/packages/linux/linux-rp_2.6.22.bb
index bd67d677c4..0bacce86fa 100644
--- a/meta/packages/linux/linux-rp_2.6.22.bb
+++ b/meta/packages/linux/linux-rp_2.6.22.bb
@@ -109,4 +109,6 @@ SRC_URI_append_tosa = "\
109 file://wm97xx-lcdnoise-r0.patch;patch=1 " 109 file://wm97xx-lcdnoise-r0.patch;patch=1 "
110# ${DOSRC}/tosa-asoc-r1.patch;patch=1 " 110# ${DOSRC}/tosa-asoc-r1.patch;patch=1 "
111 111
112SRC_URI_append_htcuniversal ="file://htcuni-acx.patch;patch=1;status=external"
113
112S = "${WORKDIR}/linux-2.6.22" 114S = "${WORKDIR}/linux-2.6.22"
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-11-17 02:04:22 +0000