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-rw-r--r--meta/recipes-kernel/linux/linux-rp-2.6.23/zylonite_touch-r0.patch1548
1 files changed, 1548 insertions, 0 deletions
diff --git a/meta/recipes-kernel/linux/linux-rp-2.6.23/zylonite_touch-r0.patch b/meta/recipes-kernel/linux/linux-rp-2.6.23/zylonite_touch-r0.patch
new file mode 100644
index 0000000000..1c00696051
--- /dev/null
+++ b/meta/recipes-kernel/linux/linux-rp-2.6.23/zylonite_touch-r0.patch
@@ -0,0 +1,1548 @@
1Index: linux-2.6.23/drivers/input/touchscreen/Kconfig
2===================================================================
3--- linux-2.6.23.orig/drivers/input/touchscreen/Kconfig 2008-02-13 01:12:29.000000000 +0000
4+++ linux-2.6.23/drivers/input/touchscreen/Kconfig 2008-02-13 01:13:20.000000000 +0000
5@@ -54,6 +54,12 @@
6 To compile this driver as a module, choose M here: the
7 module will be called corgi_ts.
8
9+config TOUCHSCREEN_ZYLONITE
10+ tristate "Zylonite touchscreen driver"
11+ default y
12+ help
13+ Say Y here for the Zylonite touchscreen driver
14+
15 config TOUCHSCREEN_FUJITSU
16 tristate "Fujitsu serial touchscreen"
17 select SERIO
18Index: linux-2.6.23/drivers/input/touchscreen/Makefile
19===================================================================
20--- linux-2.6.23.orig/drivers/input/touchscreen/Makefile 2008-02-13 01:12:29.000000000 +0000
21+++ linux-2.6.23/drivers/input/touchscreen/Makefile 2008-02-13 01:13:38.000000000 +0000
22@@ -19,3 +19,4 @@
23 obj-$(CONFIG_TOUCHSCREEN_TOUCHWIN) += touchwin.o
24 obj-$(CONFIG_TOUCHSCREEN_UCB1400) += ucb1400_ts.o
25 obj-$(CONFIG_TOUCHSCREEN_TSC2101) += tsc2101_ts.o
26+obj-$(CONFIG_TOUCHSCREEN_ZYLONITE) += zylonite-ts.o
27Index: linux-2.6.23/drivers/input/touchscreen/zylonite-ts.c
28===================================================================
29--- /dev/null 1970-01-01 00:00:00.000000000 +0000
30+++ linux-2.6.23/drivers/input/touchscreen/zylonite-ts.c 2008-02-13 16:19:15.000000000 +0000
31@@ -0,0 +1,1517 @@
32+/*
33+ * drivers/input/touchscreen/mhn_audio_touch.c.
34+ *
35+ * Author: bridge.wu@marvell.com
36+ * Created: Nov 17, 2006
37+ * Copyright: Marvell Corporation.
38+ *
39+ * This program is free software; you can redistribute it and/or modify
40+ * it under the terms of the GNU General Public License version 2 as
41+ * published by the Free Software Foundation.
42+ */
43+#include <linux/init.h>
44+#include <linux/module.h>
45+#include <linux/kernel.h>
46+#include <linux/device.h>
47+#include <linux/platform_device.h>
48+#include <linux/interrupt.h>
49+#include <linux/delay.h>
50+
51+#include <sound/driver.h>
52+#include <sound/core.h>
53+#include <sound/pcm.h>
54+#include <sound/initval.h>
55+
56+#include <asm/semaphore.h>
57+#include <asm/hardware.h>
58+#include <asm/arch/pxa-regs.h>
59+#include <asm/arch/gpio.h>
60+#include <asm/arch/mfp.h>
61+//#include <asm/arch/ipmc.h>
62+#include <linux/suspend.h>
63+#include <linux/spinlock.h>
64+
65+//#include <asm/arch/codec/acodec.h>
66+//#include <asm/arch/mhn_audio_plat.h>
67+
68+#define OSCC __REG(0x41350000) /* Oscillator Configuration Register */
69+#define AC97_DIV __REG(0x41340014)
70+
71+#define ALSA_ZY_CARD_DEBUG
72+#undef ALSA_ZY_CARD_DEBUG
73+
74+#define WM_9713_ID 0x4C13 /* this should be the 7E register value */
75+
76+#ifdef ALSA_ZY_CARD_DEBUG
77+#define dbg(format, arg...) printk(KERN_DEBUG format, ##arg)
78+#else
79+#define dbg(format, arg...)
80+#endif
81+
82+#define DEBUG
83+#undef DEBUG
84+#ifdef DEBUG
85+unsigned int start_time;
86+unsigned int end_time;
87+unsigned int time;
88+#define PRINT_TIME() do {\
89+ time = ((end_time > start_time))?\
90+ (end_time - start_time)*100/325:\
91+ (0xffffffff - start_time + end_time)*100/325;\
92+ printk("\n%s:%dus\n", __FUNCTION__, time);\
93+} while(0)
94+#endif
95+
96+
97+
98+
99+/* 9713 specific
100+ * Register Name Index
101+ */
102+#define RESET 0X00
103+#define SPEAKER_VOLUME 0X02
104+#define HEADPHONE_VOLUME 0X04
105+#define OUT3_OUT4_VOLUME 0X06
106+#define MONOVOL_MONOINPGA_ROUTE 0X08
107+#define LINE_IN_PGA_VOL_ROUTE 0X0A
108+#define DAC_PGA_VOL_ROUTE 0X0C
109+#define MIC_PGA_VOLUME 0X0E
110+#define MIC_ROUTING 0X10
111+#define REC_PGA_VOL 0X12
112+#define REC_ROUTE_MUX_SEL 0X14
113+#define PCBEEP_VOL_ROUTE 0X16
114+#define VXDAC_VOLUME_ROUTE 0X18
115+#define AUX_DAC_VOL_ROUTE 0X1A
116+#define OUTPUT_PGA_MUX 0X1C
117+#define DAC_3D_CTRL_INV_MUX_SEL 0X1E
118+#define DAC_TONE_CTRL 0X20
119+#define MIC_BIAS 0X22
120+#define OUTPUT_VOL_MAPPING_JACK 0X24
121+#define POWERDOWN_CTRL_STAT 0X26
122+#define EXTENDED_AUD_ID 0X28
123+#define EXTENDED_AUD_STAT_CTRL 0X2A
124+#define AUDIO_DAC_RATE 0X2C
125+#define AUX_DAC_RATE 0X2E
126+#define AUDIO_ADC_RATE 0X32
127+#define PCM_CODEC_CTRL 0X36
128+#define SPDIF_CTRL 0X3A
129+#define POWER_DOWN_1 0X3C
130+#define POWER_DOWN_2 0X3E
131+#define GENERAL_PURPOSE_WM_13 0X40
132+#define FAST_POWERUP_CTRL 0X42
133+#define MCLK_PLL_CTRL_1 0X44
134+#define MCLK_PLL_CTRL_2 0X46
135+#define GPIO_PIN_CFG 0X4C
136+#define GPIO_PIN_POL_TYPE 0X4E
137+#define GPIO_PIN_STICKY 0X50
138+#define GPIO_PIN_WAKEUP 0X52
139+#define GPIO_PIN_STATUS 0X54
140+#define GPIO_PIN_SHARING 0X56
141+#define GPIO_PULL_UP_DOWN_CTRL 0X58
142+#define ADD_FUNC_1 0X5A
143+#define ADD_FUNC_2 0X5C
144+#define ALC_CTRL 0X60
145+#define ALC_NOISE_GATE_CTRL 0X62
146+#define AUX_DAC_INPUT_CTRL 0X64
147+#define TEST_REG_1 0X68
148+#define TEST_REG_2 0X6A
149+#define TEST_REG_3 0X6C
150+#define TEST_REG_4 0X6E
151+#define DIGITIZER_1_WM13 0x74
152+#define DIGITIZER_2_WM13 0x76
153+#define DIGITIZER_3_WM13 0x78
154+#define DIGITIZER_READ_BACK 0x7a
155+#define VENDOR_ID1 0x7c
156+#define VENDOR_ID2 0x7e
157+
158+#define ZY_TOUCH_SAMPLE_X 1
159+#define ZY_TOUCH_SAMPLE_Y 2
160+
161+#define ZY_EVENT_TYPE_NONE 0
162+#define ZY_EVENT_TYPE_PDN 1
163+
164+
165+typedef enum _zy_acodec_error_t {
166+ ZY_ACODEC_SUCCESS = 0, /* successful completion of a function */
167+ ZY_ACODEC_GENERAL_SW_ERR, /* null pointer to registers or other software error */
168+ ZY_ACODEC_CONTROLLER_INTERFACE_TIMEOUT, /* time-out for waiting for respponse */
169+ ZY_ACODEC_SAMPLERATE_NOT_SUPPORTED, /* the sample rate is not supported either in controller or codec */
170+ ZY_ACODEC_FEATURE_NO_SUPPORTED, /* this codec feature is not supported */
171+ ZY_ACODEC_GENERAL_HW_ERR ,/* other hardware error besides time out */
172+ ZY_ACODEC_ROUTE_NO_SUPPORTED, /* the codec can not set the route required */
173+ ZY_ACODEC_SLEEP /* the codec is sleep */
174+} zy_acodec_error_t;
175+
176+typedef unsigned int zy_acodec_device_id_t;
177+
178+typedef enum _codec_state {
179+ ZY_CODEC_SLEEP = 0,
180+ ZY_CODEC_WAKEUP = 1
181+} acodec_state_t;
182+
183+typedef enum {
184+ ZY_FM = 0,
185+ ZY_MIC1 = 1,
186+ ZY_MIC2 = 2,
187+ ZY_SPEAKER =3,
188+ ZY_HEADSET =4,
189+ ZY_HANDSET =5,
190+} vol_port_type_t;
191+
192+typedef struct _context_t {
193+ int use_count; /* probe/remove and suspend/resume usage count, sync among multiple devices */
194+ zy_acodec_device_id_t acodec_id;/* - an ID that uniquely identifies the codec to be used */
195+ unsigned long init_number; /* used by driver to track whether it is inited or not */
196+
197+ void *p_voice_reg; /* pointer to Monahans registers that has PCM interface to codec */
198+ void *p_hifi_reg; /* pointer to Monahans registers that has hifi interface to codec */
199+ void *p_ctrl_reg; /* pointer to Monahans registers that has control interface to codec */
200+ int *p_ost_regs; /* needed for time out */
201+ void *p_save_memory; /* pointer to a memory region to save context while suspend */
202+ void *p_zy_scenario; /* pointer to the scenario data structure */
203+ long u_max_read_write_time_out_ms;/* input the max time to wait in milliseconds before giving up on a read or write operation */
204+ long u_max_setup_time_out_ms; /* input the maximum time in milliseconds to wait during initial setup of the ACODEC controller and codec */
205+
206+ /* member functions these pointers must be set by */
207+ zy_acodec_error_t (* g_pfn_codec_specific_init) (struct _context_t *p_device_context);
208+ zy_acodec_error_t (* g_pfn_codec_specific_dinit) (struct _context_t *p_device_context);
209+ zy_acodec_error_t (* g_pfn_acodec_read) (struct _context_t *p_dev_context, unsigned short reg_addr, unsigned short *p_reg_value);
210+ zy_acodec_error_t (* g_pfn_acodec_write) (struct _context_t *p_dev_context, unsigned short reg_addr, unsigned short reg_value);
211+
212+ /* add for route */
213+ zy_acodec_error_t (* g_pfn_set_route) (struct _context_t *p_device_context, unsigned short * rout_map ,unsigned short* current_map);
214+ /* add for sleep the codec */
215+ zy_acodec_error_t (* g_pfn_sleep_codec) (struct _context_t *p_device_context);
216+ /* add for Wake up the codec */
217+ zy_acodec_error_t (* g_pfn_wake_codec) (struct _context_t *p_device_context);
218+ /* add for get codec state */
219+ zy_acodec_error_t (* g_pfn_get_state) (struct _context_t *p_device_context, acodec_state_t *p_state);
220+ /* add for volume */
221+ zy_acodec_error_t (* g_pfn_get_vol)(struct _context_t *p_device_context, vol_port_type_t port, unsigned short *gain_in_db);
222+ zy_acodec_error_t (* g_pfn_set_vol)(struct _context_t *p_device_context, vol_port_type_t port, unsigned short gain_in_db);
223+
224+ void (* g_pfn_get_event)(struct _context_t *p_device_context, unsigned char * event_type);
225+ void (* g_pfn_event_ack)(struct _context_t *p_device_context, unsigned char event_type);
226+ zy_acodec_error_t (* g_pfn_enable_touch)(struct _context_t *p_device_context);
227+ zy_acodec_error_t (* g_pfn_disable_touch)(struct _context_t *p_device_context);
228+} zy_acocec_context_t, *p_zy_acocec_context_t;
229+
230+
231+
232+
233+
234+static p_zy_acocec_context_t p_zy_codec_ctxt = NULL;
235+
236+#include <linux/input.h>
237+//#include <asm/arch/codec/wm9713.h>
238+
239+#define PEN_DOWN 1
240+#define PEN_UP 0
241+#define TS_SAMPLE_INTERVAL 1
242+
243+typedef struct {
244+ struct input_dev *idev;
245+ struct timer_list *timer;
246+ int use_count;
247+} codec_zy_ts_t;
248+
249+codec_zy_ts_t codec_zy_ts;
250+
251+static struct input_dev *codec_zy_ts_input;
252+
253+#ifdef CONFIG_PM
254+static volatile int touch_suspend = 0 ;
255+#endif
256+
257+#define ZY_AC97_CODEC_REGS_NUM 0x40
258+
259+typedef struct
260+{ // Register symbol // Usage
261+ volatile unsigned long pocr; // PCM Out Control Register
262+ volatile unsigned long picr; // PCM In Control Register
263+ volatile unsigned long mccr; // Mic In Control Register
264+ volatile unsigned long gcr; // Global Control Register
265+ volatile unsigned long posr; // PCM Out Status Register
266+ volatile unsigned long pisr; // PCM In Status Register
267+ volatile unsigned long mcsr; // Mic In Status Register
268+ volatile unsigned long gsr; // Global Status Register
269+ volatile unsigned long car; // CODEC Access Register
270+ volatile unsigned long pcscr; // PCM Surround Out Control
271+ volatile unsigned long pcssr; // PCM Surround Out Status
272+ volatile unsigned long pcsdr; // PCM Surround Out Data
273+ volatile unsigned long pcclcr; // PCM Center/LFE Out Control
274+ volatile unsigned long pcclsr; // PCM Center/LFE Out Status
275+ volatile unsigned long pccldr; // PCM Center/LFE Out Data
276+ volatile unsigned long reserved1; //
277+ volatile unsigned long pcdr; // PCM FIFO Data Register
278+ volatile unsigned long reserved2 [0x7]; // 0x4050-0044 through 0x4050-005C
279+ volatile unsigned long mcdr; // Mic-in FIFO Data Register
280+ volatile unsigned long reserved3 [0x27]; // 0x4050-0064 through 0x4050-00FC
281+ volatile unsigned long mocr; // MODEM Out Control Register
282+ volatile unsigned long reserved4;
283+ volatile unsigned long micr; // MODEM In Control Register
284+ volatile unsigned long reserved5;
285+ volatile unsigned long mosr; // MODEM Out Status Register
286+ volatile unsigned long reserved6;
287+ volatile unsigned long misr; // MODEM In Status Register
288+ volatile unsigned long reserved7 [0x9]; // 0x4050-011C through 0x4050-013C
289+ volatile unsigned long modr; // MODEM FIFO Data Register
290+ volatile unsigned long reserved8 [0x2F]; // 0x4050-0144 through 0x4050-01FC
291+ // Primary Audio CODEC registers access
292+ volatile unsigned long codec_regs_primary_aud [ZY_AC97_CODEC_REGS_NUM];
293+ // Secondary ID 01 Audio CODEC registers access
294+ volatile unsigned long codec_regs_secondary_aud [ZY_AC97_CODEC_REGS_NUM];
295+ // Primary MODEM CODEC registers access
296+ volatile unsigned long codec_regs_primary_mdm [ZY_AC97_CODEC_REGS_NUM];
297+ // Secondary ID 01 MODEM CODEC registers access
298+ volatile unsigned long codec_regs_secondary_mdm [ZY_AC97_CODEC_REGS_NUM];
299+ // Secondary ID 10 MODEM CODEC registers access
300+ volatile unsigned long codec_regs_third_mdm [ZY_AC97_CODEC_REGS_NUM];
301+ // Secondary ID 11 MODEM CODEC registers access
302+ volatile unsigned long codec_regs_fouth_mdm [ZY_AC97_CODEC_REGS_NUM];
303+ // Secondary ID 10 Audio CODEC registers access
304+ volatile unsigned long codec_regs_third_aud [ZY_AC97_CODEC_REGS_NUM];
305+ // Secondary ID 11 Audio CODEC registers access
306+ volatile unsigned long codec_regs_fouth_aud [ZY_AC97_CODEC_REGS_NUM];
307+} zy_ac97_acodec_t, *p_zy_ac97acodec_t ;
308+
309+
310+/* Constants for the Global Control Register and Global Status Register */
311+
312+// AC97 Global Control Register bit mask constants
313+
314+#define ZY_AC97_GCR_GIE_MSK (1u << 0 )
315+#define ZY_AC97_GCR_COLD_RESET_MSK (1u << 1 )
316+#define ZY_AC97_GCR_WARM_RESET_MSK (1u << 2 )
317+#define ZY_AC97_GCR_LINK_OFF_MSK (1u << 3 )
318+#define ZY_AC97_GCR_PCRSM_IEN_MSK (1u << 4 )
319+#define ZY_AC97_GCR_SCRSM_IEN_MSK (1u << 5 )
320+#define ZY_AC97_GCR_PCRDY_IEN_MSK (1u << 8 )
321+#define ZY_AC97_GCR_SCRDY_IEN_MSK (1u << 9 )
322+#define ZY_AC97_GCR_SDONE_IE_MSK (1u << 18)
323+#define ZY_AC97_GCR_CDONE_IE_MSK (1u << 19)
324+#define ZY_AC97_GCR_nDMAEN_MSK (1u << 24)
325+#define ZY_AC97_GCR_CLKBPB_MSK (1u << 31)
326+#define ZY_AC97_GCR_FRCRST_MSK (1u << 30)
327+// Global Status Register bit mask constants
328+
329+#define ZY_AC97_GSR_GSCI_MSK (1u << 0 )
330+#define ZY_AC97_GSR_MIINT_MSK (1u << 1 )
331+#define ZY_AC97_GSR_MOINT_MSK (1u << 2 )
332+#define ZY_AC97_GSR_ACOFFD_MSK (1u << 3 )
333+#define ZY_AC97_GSR_PIINT_MSK (1u << 5 )
334+#define ZY_AC97_GSR_POINT_MSK (1u << 6 )
335+#define ZY_AC97_GSR_MINT_MSK (1u << 7 )
336+#define ZY_AC97_GSR_PCRDY_MSK (1u << 8 )
337+#define ZY_AC97_GSR_SCRDY_MSK (1u << 9 )
338+#define ZY_AC97_GSR_PCRSM_MSK (1u << 10)
339+#define ZY_AC97_GSR_SCRSM_MSK (1u << 11)
340+#define ZY_AC97_GSR_SLT12_BITS_MSK (7u << 12)
341+#define ZY_AC97_GSR_RCS_ERR_MSK (1u << 15)
342+#define ZY_AC97_GSR_SDONE_MSK (1u << 18)
343+#define ZY_AC97_GSR_CDONE_MSK (1u << 19)
344+
345+
346+// Bit mask and values for CAIP bit in car register.
347+#define ZY_AC97_CAR_CAIP_MSK (0x1<<0)
348+#define ZY_AC97_CAR_CAIP_LOCKED (0x1<<0)
349+#define ZY_AC97_CAR_CAIP_CLEAR (0<<0)
350+
351+/* Constants for FIFO status reporting and control */
352+
353+// One bit location is used to report FIFO error conditions and clear
354+// interrupts on those conditions in the various non-global status registers.
355+
356+// ZY_AC97_FIFOSTAT_FIFOE is used in:
357+ // posr
358+ // pisr
359+ // mcsr
360+ // mosr
361+ // misr
362+
363+#define ZY_AC97_FIFOSTAT_FIFOE (1u << 4)
364+#define ZY_AC97_FIFOSTAT_EOC (1u << 3)
365+#define ZY_AC97_FIFOSTAT_FSR (1u << 2)
366+
367+// A different bit location is used to enable or disable interrupts based on
368+// FIFO error conditions in the various non-global control registers.
369+
370+// ZY_AC97_FIFOCTRL_FEIE is used in:
371+ // pocr
372+ // picr
373+ // mccr
374+ // mocr
375+ // micr
376+
377+#define ZY_AC97_FIFOCTRL_FEIE (1u << 3)
378+#define ZY_AC97_FIFOCTRL_FSRIE (1u << 1)
379+
380+/*
381+*******************************************************************************
382+ AC'97 Codec Registers Location and Bit Definition
383+*******************************************************************************
384+*/
385+
386+/* */
387+
388+ // Includes symbolic values for certain proprietary register asssignments
389+ // in AC'97 devices that might be used with ZY_AC97.
390+
391+ // Valid for subset of R 2.1 specification.
392+ // Leading "e" in comment means it is an "expanded" register definition as
393+ // found in one or more of the Appendices A-D of the R 2.1 specification.
394+ // Appendix identifier will immediately follow the "e", such as "eA"
395+ // R/O indicates read-only
396+ // Registers not supported by the assumed controller will be commented out.
397+
398+#define ZY_AC97_CR_RESET_ID 0x00 // RESET CODEC TO DEFAULT, get ID info
399+#define ZY_AC97_CR_MASTER_VOLUME 0x02 // LINE OUT VOLUME
400+#define ZY_AC97_CR_HEADPHONE_VOLUME 0x04 //
401+#define ZY_AC97_CR_MASTER_VOLUME_MONO 0x06 //
402+#define ZY_AC97_CR_MASTER_TONE_R_L 0x08 //
403+#define ZY_AC97_CR_PC_BEEP_VOLUME 0x0A //
404+#define ZY_AC97_CR_PHONE_VOLUME 0x0C //
405+#define ZY_AC97_CR_MIC_VOLUME 0x0E // micrOPHONE VOLUME/ AGC
406+#define ZY_AC97_CR_LINE_IN_VOLUME 0x10 // LINE IN VOLUME
407+#define ZY_AC97_CR_CD_VOLUME 0x12 //
408+#define ZY_AC97_CR_VIDEO_VOLUME 0x14 //
409+#define ZY_AC97_CR_AUX_VOLUME 0x16 //
410+#define ZY_AC97_CR_PCM_OUT_VOLUME 0x18 //
411+#define ZY_AC97_CR_RECORD_SELECT 0x1A // SELECT LINE IN OR micrOPHONE
412+#define ZY_AC97_CR_RECORD_GAIN 0x1C //
413+#define ZY_AC97_CR_RECORD_GAIN_MIC 0x1E //
414+#define ZY_AC97_CR_GENERAL_PURPOSE 0x20 //
415+#define ZY_AC97_CR_CONTROL_3D 0x22 //
416+#define ZY_AC97_CR_POWERDOWN_CTRL_STAT 0x26 // POWER MANAGEMENT
417+#define ZY_AC97_CR_E_AUDIO_ID 0x28 // eA Extended audio sprt info, R/O
418+#define ZY_AC97_CR_E_AUDIO_CTRL_STAT 0x2A // eA Extended audio stat + control
419+
420+//
421+// Audio Sample Rate Control Registers, 0x2C - 0x34
422+//
423+ // eA PCM Front DAC rate control
424+#define ZY_AC97_CR_E_ASR_PCM_FRNT_DAC_RT 0x2C // (output slots 3, 4, 6)
425+#define ZY_AC97_CR_E_ASR_PCM_LR_ADC_RT 0x32 // eA PCM L+R ADC rate control (3+4)
426+#define ZY_AC97_CR_E_ASR_MIC_ADC_RT 0x34 // eA PCM Mic ADC rate control (5)
427+
428+
429+#define ZY_AC97_CR_E_MDM_GPIO_PIN_STAT 0x54
430+//
431+// 5Ah-7Ah: Vendor Reserved
432+//
433+//
434+// 7Ch-7Eh: Vendor ID registers. Optional but standardized for Plug'n'Play
435+//
436+#define ZY_AC97_CR_VENDOR_ID1 0x7C
437+#define ZY_AC97_CR_VENDOR_ID2 0x7E
438+
439+#define ZY_AC97_CR_MAX ZY_AC97_CR_VENDOR_ID2
440+
441+#define ZY_AC97_CR_END_OF_LIST (ZY_AC97_CR_MAX + 2)
442+
443+
444+
445+/* Other Constants */
446+
447+// For accessing the Codec mixer registers, each increment of one 32-bit word
448+// in processor space increments the addressed mixer register by two.
449+// This does not cause any ambiguities because only even mixer register
450+// addresses are currently supported (AC '97 spec, R 2.2)
451+#define ZY_AC97_CODEC_REGS_PER_WORD 2
452+
453+/* Default timeout and holdtime settings */
454+
455+// timeout in reading and writing codec registers through AC link
456+#define ZY_AC97_RW_TIMEOUT_DEF 200 //unit is us
457+
458+// timeout in waiting for codec's ready signal during setup process
459+#define ZY_AC97_SETUP_TIMEOUT_DEF 500 //unit is us
460+
461+// timeout in waiting for locking the link successfully
462+#define ZY_AC97_LOCK_TIMEOUT_DEF 300 //unit is us
463+
464+// timeout in shutting down the link
465+#define ZY_AC97_LINKOFF_TIMEOUT_DEF 500 //unit is us
466+
467+// holdtime for keeping nReset signal active(low) in AC link
468+#define ZY_AC97_COLD_HOLDTIME 100 //unit is us
469+
470+/*
471+*******************************************************************************
472+ ZY AC97 data structure used in function interface
473+*******************************************************************************
474+*/
475+
476+typedef struct
477+{
478+ unsigned long pocr; // PCM Out Control Register
479+ unsigned long picr; // PCM In Control Register
480+ unsigned long mccr; // Mic In Control Register
481+ unsigned long gcr; // Global Control Register
482+ unsigned long pcscr; // PCM Surround Out Control
483+ unsigned long pcclcr; // PCM Center/LFE Out Control
484+ unsigned long mocr; // MODEM Out Control Register
485+ unsigned long micr; // MODEM In Control Register
486+}zy_ac97_save_context_t;
487+
488+
489+#define AC97_SAVE_CONTEXT_SIZE (sizeof(zy_ac97_save_context_t))
490+
491+static int zy_ac97_acodec_link_lock(p_zy_ac97acodec_t p_ac97_reg)
492+{
493+ int status = 1;
494+ volatile unsigned long car_tmp;
495+
496+ car_tmp = p_ac97_reg->car;
497+ if (car_tmp & ZY_AC97_CAR_CAIP_MSK) /* "1" in CAIP bit means lock failed. */
498+ {
499+ status = 0;
500+ }
501+ return (status);
502+}
503+
504+
505+zy_acodec_error_t zy_ac97_acodec_write (zy_acocec_context_t *p_dev_context, unsigned short offset, unsigned short data)
506+{
507+ zy_acodec_error_t status = ZY_ACODEC_SUCCESS;
508+ int got_link;
509+ unsigned long time_remaining;
510+ volatile unsigned long * p_codec_reg;
511+ p_zy_ac97acodec_t p_ac97_reg = (p_zy_ac97acodec_t)(p_dev_context->p_ctrl_reg);
512+ unsigned long max_rw_time_out_us = (p_dev_context->u_max_read_write_time_out_ms) * 1000;
513+
514+
515+ if(offset == ZY_AC97_CR_E_MDM_GPIO_PIN_STAT)
516+ {/* it is a special register and sent out on slot 12 */
517+ p_codec_reg = &(p_ac97_reg->codec_regs_primary_mdm[0]);
518+ p_codec_reg += offset / ZY_AC97_CODEC_REGS_PER_WORD;
519+ /* The data will be sent out on slot 12. */
520+ *p_codec_reg = (unsigned long)data;
521+ goto done;
522+ }
523+
524+ /* Point to specified register within area mapped to target codec regs */
525+ p_codec_reg = &(p_ac97_reg->codec_regs_primary_aud[0]);
526+ p_codec_reg += offset / ZY_AC97_CODEC_REGS_PER_WORD;
527+
528+
529+ /* Lock the ACLINK */
530+ time_remaining = ZY_AC97_LOCK_TIMEOUT_DEF;
531+ do
532+ {
533+ got_link = zy_ac97_acodec_link_lock(p_ac97_reg);
534+ if (0 == got_link) /* 1 usec is a long time. Skip delay if possible. */
535+ {
536+ udelay(1);
537+ }
538+ } /* Wait while time remaining and ACLINK not available */
539+ while (time_remaining-- && (0 == got_link));
540+
541+ if (0 == got_link) /* Didn't get the ACLINK */
542+ {
543+ status = ZY_ACODEC_CONTROLLER_INTERFACE_TIMEOUT;
544+ printk(KERN_ERR "AC97 Write Link Timeout\n");
545+ }
546+ else /* We got the link. Perform the write operation and don't wait. */
547+ {
548+ /* First, clear old write status indication CDONE by writing a ONE to that bit. */
549+ p_ac97_reg->gsr = ZY_AC97_GSR_CDONE_MSK;
550+
551+ *p_codec_reg = (unsigned long)data; /* Now the write! */
552+
553+ /* Wait until write cycle is complete. There should be a way
554+ * to do this speculatively at the beginning of the procedure.
555+ * Need to discover it. Too inefficient to always wait.
556+ */
557+
558+ time_remaining = max_rw_time_out_us;
559+ do
560+ {
561+ udelay(1);
562+ } /* Wait while time remaining and command I/O still incomplete. */
563+ while ( (time_remaining--) && !(p_ac97_reg->gsr & ZY_AC97_GSR_CDONE_MSK));
564+ if (!(p_ac97_reg->gsr & ZY_AC97_GSR_CDONE_MSK))
565+ {
566+ status = ZY_ACODEC_CONTROLLER_INTERFACE_TIMEOUT;
567+ p_ac97_reg->car = ZY_AC97_CAR_CAIP_CLEAR;
568+ }
569+ } /* Got AC link */
570+
571+done:
572+ return(status);
573+} /* Ac97CtrlCodecWrite() */
574+
575+#define CKENA __REG(0x4134000C) /* A Clock Enable Register */
576+#define CKENB __REG(0x41340010)
577+
578+zy_acodec_error_t zy_ac97_acodec_read (zy_acocec_context_t *p_dev_context, unsigned short offset, unsigned short *pdata)
579+{
580+ zy_acodec_error_t status = ZY_ACODEC_SUCCESS;
581+ int got_link;
582+ unsigned long time_remaining;
583+ volatile unsigned long * p_codec_reg;
584+ p_zy_ac97acodec_t p_ac97_reg = (p_zy_ac97acodec_t)(p_dev_context->p_ctrl_reg);
585+ unsigned long max_rw_time_out_us = (p_dev_context->u_max_read_write_time_out_ms) * 1000;
586+
587+ /* Point to specified register within area mapped to target codec regs */
588+ p_codec_reg = &(p_ac97_reg->codec_regs_primary_aud[0]);
589+ p_codec_reg += offset / ZY_AC97_CODEC_REGS_PER_WORD;
590+
591+ /* Lock the ACLINK */
592+ time_remaining = ZY_AC97_LOCK_TIMEOUT_DEF;
593+ do
594+ {
595+ got_link = zy_ac97_acodec_link_lock(p_ac97_reg);
596+ if (0 == got_link) /* 1 usec is a long time. Skip delay if possible. */
597+ {
598+ udelay(1);
599+ }
600+ } /* Wait while time remaining and ACLINK not available */
601+ while (time_remaining-- && (0 == got_link));
602+
603+ if (0 == got_link) /* Didn't get the ACLINK */
604+ {
605+ status = ZY_ACODEC_CONTROLLER_INTERFACE_TIMEOUT;
606+ printk(KERN_ERR "AC97 Read Link Timeout\n");
607+ }
608+ else /* We got the link. Perform the write operation and don't wait. */
609+ {
610+ /* First, clear old read status indications. */
611+ p_ac97_reg->gsr = ZY_AC97_GSR_SDONE_MSK | ZY_AC97_GSR_RCS_ERR_MSK;
612+
613+ *pdata = (unsigned short)(*p_codec_reg); /* This is THE DUMMY READ. */
614+
615+ /* Wait for read I/O with codec to complete before doing real read. */
616+ time_remaining = max_rw_time_out_us;
617+ do
618+ {
619+ udelay(1);
620+ } /* Wait while time remaining and read I/O still incomplete */
621+ while( (time_remaining--) && (!(p_ac97_reg->gsr & ZY_AC97_GSR_SDONE_MSK)) );
622+
623+ if ((p_ac97_reg->gsr & ZY_AC97_GSR_SDONE_MSK) && (!(p_ac97_reg->gsr & ZY_AC97_GSR_RCS_ERR_MSK)) )
624+ {
625+ if (p_ac97_reg->gsr & ZY_AC97_GSR_RCS_ERR_MSK)
626+ {/* timeout indicated by RCS bit */
627+ status = ZY_ACODEC_CONTROLLER_INTERFACE_TIMEOUT;
628+ }
629+ /* succeed in reading. clear status bits first. */
630+ p_ac97_reg->gsr = ZY_AC97_GSR_SDONE_MSK | ZY_AC97_GSR_RCS_ERR_MSK;
631+ *pdata = (unsigned short)(*p_codec_reg); /* THE REAL READ. */
632+ if (*pdata == 0xffff)
633+ {/* timeout indicated by returned value */
634+ status = ZY_ACODEC_CONTROLLER_INTERFACE_TIMEOUT;
635+ }
636+ /* check later: is second waiting really needed? */
637+ time_remaining = max_rw_time_out_us;
638+ do
639+ {
640+ udelay(1);
641+ } /* Wait while time remaining and read I/O still incomplete */
642+ while( (time_remaining--) && (!(p_ac97_reg->gsr & ZY_AC97_GSR_SDONE_MSK)) );
643+ //printk(KERN_ERR "AC97 Read Result %d\n", (p_ac97_reg->gsr & ZY_AC97_GSR_SDONE_MSK) );
644+ }
645+ else /* failed */
646+ {
647+ status = ZY_ACODEC_CONTROLLER_INTERFACE_TIMEOUT;
648+ p_ac97_reg->car = ZY_AC97_CAR_CAIP_CLEAR;
649+ //printk(KERN_ERR "AC97 Read Link Timeout2 %x %x %x\n", CKENA, OSCC, CKENB);
650+ } /* else (OK to do real read) */
651+
652+ } /* else (We got the link. Perform the read operations.) */
653+
654+ return (status);
655+}
656+
657+
658+
659+zy_acodec_error_t zy_acodec_get_adc_sample(zy_acocec_context_t *p_device_context, unsigned short *p_sample_data, unsigned short adc_type, int *p_pen_down)
660+{
661+ zy_acodec_error_t status = ZY_ACODEC_SUCCESS;
662+ unsigned short value;
663+ unsigned long wait;
664+
665+ if (adc_type == ZY_TOUCH_SAMPLE_X)
666+ {
667+ value = 0x202;
668+ }
669+ else
670+ {/* Y sample */
671+ value = 0x204;
672+ }
673+
674+ status = zy_ac97_acodec_write(p_device_context, DIGITIZER_1_WM13, value);
675+
676+ wait = 0;
677+ do
678+ {
679+ status = zy_ac97_acodec_read(p_device_context, DIGITIZER_1_WM13, &value);
680+ if ( !(value & 0x200 ) )
681+ {
682+ break;
683+ }
684+ }while ( 100 > wait++ );
685+
686+ status = zy_ac97_acodec_read(p_device_context, DIGITIZER_READ_BACK, &value);
687+ if (value & 0x8000)
688+ {/* means pen down */
689+ *p_pen_down = 1;
690+ }
691+ else
692+ {
693+ *p_pen_down = 0;
694+ }
695+ *p_sample_data = value & 0xfff;
696+
697+ return status;
698+}
699+
700+
701+
702+/*
703+ * add a touch event
704+ */
705+static int codec_zy_ts_evt_add(codec_zy_ts_t* ts, u16 pressure, u16 x, u16 y)
706+{
707+ /* add event and remove adc src bits */
708+ static u16 pre_press = 0;
709+
710+ input_report_abs(ts->idev, ABS_X, x & 0xfff);
711+ input_report_abs(ts->idev, ABS_Y, y & 0xfff);
712+ if (pressure == pre_press){
713+ pressure--;
714+ }
715+ pre_press = pressure;
716+ input_report_abs(ts->idev, ABS_PRESSURE, pressure & 0xfff);
717+ input_sync(ts->idev);
718+#ifdef CONFIG_IPM
719+ ipm_event_notify(IPM_EVENT_UI, IPM_EVENT_DEVICE_TSI, NULL, 0);
720+#endif
721+ return 0;
722+}
723+
724+/*
725+ * add a pen up event
726+ */
727+static void codec_zy_ts_evt_release(codec_zy_ts_t* ts)
728+{
729+ input_report_abs(ts->idev, ABS_PRESSURE, 0);
730+ input_sync(ts->idev);
731+
732+#ifdef CONFIG_IPM
733+ ipm_event_notify(IPM_EVENT_UI, IPM_EVENT_DEVICE_TSI, NULL, 0);
734+#endif
735+ p_zy_codec_ctxt->g_pfn_event_ack(p_zy_codec_ctxt,ZY_EVENT_TYPE_PDN);
736+}
737+
738+/*
739+ * Kill the touchscreen thread and stop
740+ * the touch digitiser.
741+ */
742+static void codec_zy_ts_input_close(struct input_dev *idev)
743+{
744+ codec_zy_ts_t *ts = (codec_zy_ts_t *) &codec_zy_ts;
745+
746+#ifdef CONFIG_PM
747+ if(touch_suspend){
748+ pr_info("touch is suspended!\n");
749+ return -1;
750+ }
751+#endif
752+ dbg("close ts input!\n");
753+ if (--ts->use_count == 0) {
754+ del_timer(ts->timer);
755+ if (ts->timer != NULL)
756+ kfree(ts->timer);
757+ p_zy_codec_ctxt->g_pfn_disable_touch(p_zy_codec_ctxt);
758+ }
759+}
760+
761+/*
762+ * Sample the touchscreen
763+ */
764+int ac97_poll_touch(codec_zy_ts_t *ts)
765+{
766+ unsigned short x=0, y=0;
767+ int if_down= 0;
768+ zy_acodec_error_t status = ZY_ACODEC_SUCCESS;
769+
770+#ifdef DEBUG
771+ start_time = OSCR;
772+#endif
773+
774+ /* get x value */
775+ status = zy_acodec_get_adc_sample(p_zy_codec_ctxt, &x, ZY_TOUCH_SAMPLE_X, &if_down);
776+ if (ZY_ACODEC_SUCCESS != status ){
777+ return -EIO;
778+ }
779+ dbg("x:0x%x\n", x);
780+
781+ /* the pen is up */
782+ if (1 != if_down){
783+ return PEN_UP;
784+ }
785+
786+ /* get y vaule */
787+ status = zy_acodec_get_adc_sample(p_zy_codec_ctxt, &y, ZY_TOUCH_SAMPLE_Y, &if_down);
788+ if (ZY_ACODEC_SUCCESS != status ){
789+ return -EIO;
790+ }
791+ dbg("y:0x%x\n",y);
792+
793+ /* the pen is up */
794+ if (1 != if_down){
795+ return PEN_UP;
796+ }
797+
798+ /* the pen is down, can not get the pressure value,
799+ * so if pen is down, give the max pressure value
800+ */
801+ codec_zy_ts_evt_add(ts,0xfff, x, y);
802+
803+#ifdef DEBUG
804+ end_time = OSCR;
805+ PRINT_TIME();
806+#endif
807+
808+ return PEN_DOWN;
809+}
810+
811+static void touch_timer_handler(unsigned long unused)
812+{
813+ int event;
814+ codec_zy_ts_t *ts = &codec_zy_ts;
815+
816+ event = ac97_poll_touch(ts);
817+
818+ if (event == PEN_DOWN) {
819+ dbg("pen down!\n");
820+ ts->timer->expires = jiffies + TS_SAMPLE_INTERVAL;
821+ add_timer(ts->timer);
822+ } else if(event == PEN_UP) {
823+ dbg("pen up!\n");
824+ codec_zy_ts_evt_release(ts);
825+ } else if(event == -EIO) {
826+ printk(KERN_ERR "Access touch interface error!\n");
827+ }
828+ return;
829+}
830+
831+static zy_acodec_error_t zy_ac97_acodec_cold_reset(zy_acocec_context_t * p_ac97_ctxt)
832+{
833+ zy_acodec_error_t status = ZY_ACODEC_SUCCESS;
834+ p_zy_ac97acodec_t p_ac97 = (p_zy_ac97acodec_t)(p_ac97_ctxt->p_ctrl_reg);
835+ int pri_codec_ready;
836+ unsigned long time_remaining;
837+
838+ p_ac97->gcr = 0;
839+ p_ac97->gcr |= ZY_AC97_GCR_CLKBPB_MSK;
840+ /* Hold reset active for a minimum time */
841+ udelay(ZY_AC97_COLD_HOLDTIME);
842+ p_ac97->gcr &= ~ZY_AC97_GCR_CLKBPB_MSK;
843+
844+ /* Deactivate cold reset condition */
845+ p_ac97->gcr |= (ZY_AC97_GCR_COLD_RESET_MSK | ZY_AC97_GCR_WARM_RESET_MSK);
846+
847+
848+ pri_codec_ready = 0;
849+ time_remaining = (p_ac97_ctxt->u_max_setup_time_out_ms) * 10;
850+ do
851+ {
852+ udelay(1);
853+ if (p_ac97->gsr & ZY_AC97_GSR_PCRDY_MSK)
854+ pri_codec_ready = 1;
855+ }
856+ while (time_remaining-- && (pri_codec_ready == 0));
857+
858+ /* Timeout status if some of the devices weren't ready. */
859+ if (pri_codec_ready == 0)
860+ {
861+ status = ZY_ACODEC_CONTROLLER_INTERFACE_TIMEOUT;
862+ }
863+
864+ return (status);
865+}
866+
867+
868+zy_acodec_error_t zy_ac97_acodec_init(zy_acocec_context_t *p_ac97_ctxt)
869+{
870+ zy_acodec_error_t status ;
871+
872+ status = zy_ac97_acodec_cold_reset(p_ac97_ctxt);
873+
874+ return (status);
875+}
876+
877+
878+/*
879+ * Start the touchscreen thread and
880+ * the touch digitiser.
881+ */
882+static int codec_zy_ts_input_open(struct input_dev *idev)
883+{
884+ codec_zy_ts_t *ts = (codec_zy_ts_t *) &codec_zy_ts;
885+
886+#ifdef CONFIG_PM
887+ if(touch_suspend){
888+ pr_info("touch is suspended!\n");
889+ return -1;
890+ }
891+#endif
892+
893+ if (ts->use_count++ > 0)
894+ return 0;
895+
896+ dbg("Touch is opened. Use count: %d\n", ts->use_count);
897+ ts->idev = idev;
898+ ts->timer = kmalloc(sizeof(struct timer_list), GFP_KERNEL);
899+ if (!ts->timer) {
900+ printk(KERN_ERR "Alloc memory error for timer!\n");
901+ return -ENOMEM;
902+ }
903+
904+ init_timer(ts->timer);
905+ ts->timer->function = touch_timer_handler;
906+ ts->timer->data = 0;
907+ p_zy_codec_ctxt->g_pfn_enable_touch(p_zy_codec_ctxt);
908+
909+ return 0;
910+}
911+
912+/*
913+ * initilze the pxa touch screen
914+ */
915+static int alsa_ts_init( void )
916+{
917+ codec_zy_ts_t* ts = &codec_zy_ts;
918+
919+ memset(ts, 0, sizeof(codec_zy_ts_t));
920+
921+ codec_zy_ts_input = input_allocate_device();
922+ if (!codec_zy_ts_input)
923+ return -ENOMEM;
924+
925+
926+ /* tell input system what we events we accept and register */
927+ codec_zy_ts_input->name = "codec zy touchscreen";
928+ codec_zy_ts_input->open = codec_zy_ts_input_open;
929+ codec_zy_ts_input->close = codec_zy_ts_input_close;
930+ __set_bit(EV_ABS, codec_zy_ts_input->evbit);
931+ __set_bit(ABS_X, codec_zy_ts_input->absbit);
932+ __set_bit(ABS_Y, codec_zy_ts_input->absbit);
933+ __set_bit(ABS_PRESSURE, codec_zy_ts_input->absbit);
934+ input_register_device(codec_zy_ts_input);
935+
936+ return 0;
937+}
938+
939+static irqreturn_t pxa_touch_irq(int irq, void *dev)
940+{
941+ unsigned char event_type;
942+
943+ //printk(KERN_ERR "%s: enter codec event handler\n", __FUNCTION__);
944+
945+ dbg("%s: enter codec event handler\n", __FUNCTION__);
946+ p_zy_codec_ctxt->g_pfn_get_event(p_zy_codec_ctxt, &event_type);
947+ switch (event_type) {
948+ case ZY_EVENT_TYPE_PDN:
949+ {
950+ codec_zy_ts_t *ts = &codec_zy_ts;
951+ /*if the touch is not open need not acknowledge the event*/
952+ if (ts->use_count <= 0)
953+ break;
954+ ts->timer->expires = jiffies + TS_SAMPLE_INTERVAL;
955+ add_timer(ts->timer);
956+ break;
957+ }
958+ default:
959+ printk("unsupported codec event:0x%x\n", event_type);
960+ }
961+
962+ return IRQ_HANDLED;
963+}
964+
965+
966+
967+
968+
969+
970+
971+
972+
973+static mfp_cfg_t extra_cfg[] = {
974+ MFP_CFG_X(GPIO17, AF3, DS03X, PULL_LOW),
975+ MFP_CFG_X(GPIO25, AF0, DS01X, PULL_LOW),
976+};
977+
978+#define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x)
979+
980+extern void dump_mfp(void);
981+
982+zy_acodec_error_t zy_ac97_acodec_mfp_init(zy_acocec_context_t *p_device_context)
983+{
984+ unsigned short codec_id;
985+
986+ //mhn_mfp_set_afds(MFP_RSVD_AC97_SDATA_IN_0, MFP_AF0, MFP_DS03X);
987+ //enable_ac97_pins();
988+ zy_ac97_acodec_init(p_device_context);
989+ if (zy_ac97_acodec_read(p_device_context, 0x0, &codec_id)){
990+
991+ /*
992+ * there is a bug on MonahansL/MonhansPL PC card: AC97_SDATA_IN is not connected to CODEC
993+ * ECO 72: Connect PWM_0(MFP_RSVD_AC97_SDATA_IN_0) to CODEC as AC97_SDATA_IN
994+ */
995+
996+ //mhn_mfp_set_afds(MFP_RSVD_AC97_SDATA_IN_0, MFP_RSVD_AC97_SDATA_IN_0_AF, MFP_DS03X);
997+ //mhn_mfp_set_afds(MFP_AC97_SDATA_IN_0, MFP_AF0, MFP_DS01X);
998+
999+ gpio_direction_output(mfp_to_gpio(MFP_PIN_GPIO17), 0);
1000+ pxa3xx_mfp_config(ARRAY_AND_SIZE(extra_cfg));
1001+ gpio_direction_input(mfp_to_gpio(MFP_PIN_GPIO25));
1002+ }
1003+
1004+
1005+ return ZY_ACODEC_SUCCESS;
1006+}
1007+
1008+#define ZY_AC97_WM9713_GPIO_PIN_PDN ( 0x1 << 13 ) /* Pen down */
1009+
1010+/*power enable bit in 3ch and 3eh */
1011+/*3ch */
1012+#define ZY_AC97_9713_PWR_PADCPD ( 0x1 << 15 )
1013+#define ZY_AC97_9713_PWR_VMID ( 0x1 << 14 )
1014+#define ZY_AC97_9713_PWR_TSHUT ( 0x1 << 13 )
1015+#define ZY_AC97_9713_PWR_VXDAC ( 0x1 << 12 )
1016+#define ZY_AC97_9713_PWR_AUXDAC ( 0x1 << 11 )
1017+#define ZY_AC97_9713_PWR_MBIAS ( 0x1 << 10 )
1018+#define ZY_AC97_9713_PWR_PLL ( 0x1 << 9 )
1019+#define ZY_AC97_9713_PWR_DACL ( 0x1 << 7 )
1020+#define ZY_AC97_9713_PWR_DACR ( 0x1 << 6 )
1021+#define ZY_AC97_9713_PWR_ADCL ( 0x1 << 5 )
1022+#define ZY_AC97_9713_PWR_ADCR ( 0x1 << 4 )
1023+#define ZY_AC97_9713_PWR_HPLX ( 0x1 << 3 )
1024+#define ZY_AC97_9713_PWR_HPRX ( 0x1 << 2 )
1025+#define ZY_AC97_9713_PWR_SPKX ( 0x1 << 1 )
1026+#define ZY_AC97_9713_PWR_MX ( 0x1 << 0 )
1027+
1028+/*3EH */
1029+#define ZY_AC97_9713_PWR_MCD ( 0x1 << 15 )
1030+#define ZY_AC97_9713_PWR_MICBIAS ( 0x1 << 14 )
1031+#define ZY_AC97_9713_PWR_MONO ( 0x1 << 13 )
1032+#define ZY_AC97_9713_PWR_OUT4 ( 0x1 << 12 )
1033+#define ZY_AC97_9713_PWR_OUT3 ( 0x1 << 11 )
1034+#define ZY_AC97_9713_PWR_HPL ( 0x1 << 10 )
1035+#define ZY_AC97_9713_PWR_HPR ( 0x1 << 9 )
1036+#define ZY_AC97_9713_PWR_SPKL ( 0x1 << 8 )
1037+#define ZY_AC97_9713_PWR_SPKR ( 0x1 << 7 )
1038+#define ZY_AC97_9713_PWR_LL ( 0x1 << 6 )
1039+#define ZY_AC97_9713_PWR_LR ( 0x1 << 5 )
1040+#define ZY_AC97_9713_PWR_MOIN ( 0x1 << 4 )
1041+#define ZY_AC97_9713_PWR_MA ( 0x1 << 3 )
1042+#define ZY_AC97_9713_PWR_MB ( 0x1 << 2 )
1043+#define ZY_AC97_9713_PWR_MPA ( 0x1 << 1 )
1044+#define ZY_AC97_9713_PWR_MPB ( 0x1 << 0 )
1045+
1046+
1047+void zy_wm9713_get_event(zy_acocec_context_t *p_device_context, unsigned char * event_type)
1048+{
1049+ unsigned short event_state = 0;
1050+ zy_ac97_acodec_read(p_device_context, GPIO_PIN_STATUS, &event_state);
1051+ if(event_state & ZY_AC97_WM9713_GPIO_PIN_PDN){
1052+ *event_type = ZY_EVENT_TYPE_PDN;
1053+ return;
1054+ }
1055+ return;
1056+}
1057+
1058+void zy_wm9713_event_ack(zy_acocec_context_t *p_device_context, unsigned char event_type)
1059+{
1060+ unsigned short event_state = 0;
1061+ zy_ac97_acodec_read(p_device_context, GPIO_PIN_STATUS, &event_state);
1062+ if( event_type == ZY_EVENT_TYPE_PDN){
1063+ zy_ac97_acodec_write(p_device_context,
1064+ GPIO_PIN_STATUS,
1065+ (event_state & (~ZY_AC97_WM9713_GPIO_PIN_PDN)));
1066+ }
1067+
1068+ zy_ac97_acodec_read(p_device_context, GPIO_PIN_STATUS, &event_state);
1069+ return;
1070+}
1071+
1072+static void * p_saved_memory = NULL;
1073+static void * p_zy_scenario = NULL;
1074+static p_zy_acocec_context_t p_zy_ctxt = NULL;
1075+
1076+#define WM9713_SAVE_REGISTER_NO (64-11)
1077+typedef struct {
1078+ unsigned short wm9713RegisterContext [WM9713_SAVE_REGISTER_NO + 1]; /* Fixed (data misalignment error) */
1079+}ZY_9713_CONTEXT_SAVE_T;
1080+
1081+
1082+/**
1083+ * alsa_prepare_for_zy - create and initialize the p_zy_acocec_context_t
1084+ * open the clock of data link
1085+ * @p_p_zy_ctxt: return the data structure p_zy_acocec_context_t
1086+ * return: 0 success ; -ENOMEM
1087+ **/
1088+int alsa_prepare_for_zy(p_zy_acocec_context_t * p_p_zy_ctxt)
1089+{
1090+ if (p_zy_ctxt) {
1091+ p_zy_ctxt->use_count++;
1092+ *p_p_zy_ctxt = p_zy_ctxt;
1093+ return 0;
1094+ }
1095+
1096+ p_zy_ctxt = kzalloc(sizeof(zy_acocec_context_t), GFP_KERNEL);
1097+ if (!p_zy_ctxt)
1098+ return -ENOMEM;
1099+
1100+ /* enable CLK_POUT as CODEC clock input */
1101+ OSCC |= 0x800;
1102+
1103+ p_saved_memory = kzalloc(sizeof(ZY_9713_CONTEXT_SAVE_T) +
1104+ sizeof(zy_ac97_save_context_t), GFP_KERNEL);
1105+ if (NULL == p_saved_memory) {
1106+ if (p_zy_ctxt)
1107+ kfree(p_zy_ctxt);
1108+ return -ENOMEM;
1109+ }
1110+
1111+ p_zy_ctxt->acodec_id = (zy_acodec_device_id_t) (WM_9713_ID);
1112+ p_zy_ctxt->use_count++;
1113+ /*
1114+ p_zy_ctxt->pMfpRegBase = (unsigned long) (MFP_BASE);
1115+ p_zy_ctxt->pMfpRmDb = ZY_MFP_RM_DATABASE;
1116+ p_zy_ctxt->p_ost_regs = OST_BASE;
1117+ */
1118+ p_zy_ctxt->p_voice_reg = NULL;
1119+ p_zy_ctxt->p_hifi_reg = (void *) (&POCR);
1120+ p_zy_ctxt->p_ctrl_reg = (void *) (&POCR);
1121+ p_zy_ctxt->u_max_read_write_time_out_ms = ZY_AC97_RW_TIMEOUT_DEF;
1122+ p_zy_ctxt->u_max_setup_time_out_ms = ZY_AC97_SETUP_TIMEOUT_DEF;
1123+ p_zy_ctxt->p_save_memory = p_saved_memory;
1124+ p_zy_ctxt->p_zy_scenario = p_zy_scenario;
1125+// pxa_set_cken(24, 1);
1126+ CKENA |= (1 << 24);
1127+ AC97_DIV = 1625<<12 | 128;
1128+#ifdef DEBUG_ALSA_ZY
1129+ debug_pac97ctxt = p_zy_ctxt;
1130+ misc_register(&audio_dev);
1131+#endif
1132+
1133+ (*p_p_zy_ctxt) = p_zy_ctxt;
1134+
1135+ return 0;
1136+}
1137+
1138+
1139+/* this is platform specific */
1140+/* do later: not to enable recording route and playback route in this function,
1141+ * leave it to driver to call other function
1142+ */
1143+zy_acodec_error_t zy_wm9713_specific_init (zy_acocec_context_t *p_device_context)
1144+{
1145+
1146+ unsigned short value;
1147+
1148+ /* this assumes that the aclink is initialized wait some time and then
1149+ * do a warm reset to enabled the ACLINK, required for wm9713
1150+ * (not wm9712 or ucb1400)
1151+ */
1152+
1153+ /* pay attention: whether the workaround is still needed? */
1154+ p_zy_ac97acodec_t p_ac97_reg = (p_zy_ac97acodec_t)(p_device_context->p_ctrl_reg);
1155+
1156+ p_ac97_reg->gcr |= ZY_AC97_GCR_WARM_RESET_MSK;
1157+
1158+ mdelay(5);
1159+
1160+ /* power on all the necessary unit */
1161+ zy_ac97_acodec_write(p_device_context,POWERDOWN_CTRL_STAT, 0x000); /*26*/
1162+ /* open left headphone mixer */
1163+ /* open right headphone mixer */
1164+ /* open right/left dac */
1165+ /* open right/left adc */
1166+ /* open temperature sensor */
1167+ /* enable reference generator */
1168+ zy_ac97_acodec_write(p_device_context,POWER_DOWN_1, 0xda00); /*3c */
1169+ /* open microphone bias */
1170+ /* open HPL output PGA */
1171+ /* open HPR output PGA */
1172+ /* open mic PGA MA */
1173+ /* open mic pre-amp MPA */
1174+ /* if here we enable SPKL and SPKR PGA, then Touch screen will doesn't work */
1175+ zy_ac97_acodec_write(p_device_context,POWER_DOWN_2,0xb9f5); /*3e */
1176+
1177+ /* recording route and microphone input */
1178+ /* microphone selection, now fixed to MIC1 input and mic bias output */
1179+ /* MIC1 only, MICBIAS enable */
1180+ zy_ac97_acodec_write (p_device_context, MIC_BIAS, 0xC440); /*0x22h*/
1181+
1182+ /* mic pga setting to mixer (side tone) */
1183+ /* comment the below code to make MICA/B play back volume gain + 0db */
1184+ /* zy_ac97_acodec_write (p_device_context, MIC_PGA_VOLUME, 0x0000); */ /*0x0eh*/
1185+
1186+ /* recording side tone and ADC boost, now fixed to default (14h) */
1187+ /* recording volume 0dB */
1188+ zy_ac97_acodec_write(p_device_context, REC_PGA_VOL, 0x0); /*12*/
1189+
1190+ /* hifi playback route and output mixer */
1191+ /* by default, fixed to enable headphone only */
1192+
1193+ /* comment the below code to make SPEAKER default MUTE */
1194+ zy_ac97_acodec_write (p_device_context, SPEAKER_VOLUME, 0x0); /*02*/
1195+
1196+ /* comment the below code to make OUT3_OUT4 default MUTE */
1197+ /* zy_ac97_acodec_write (p_device_context, OUT3_OUT4_VOLUME, 0x8000); */ /*06*/
1198+
1199+ /* remove all the mute bit volume gain + 0db */
1200+ zy_ac97_acodec_write(p_device_context, HEADPHONE_VOLUME, 0x0); /*04*/
1201+
1202+ /* DAC route */
1203+ /* open DAC to headphone mixer path */
1204+ /* left DAC gain +0db */
1205+ /* right DAC gain +0db */
1206+ zy_ac97_acodec_write(p_device_context, DAC_PGA_VOL_ROUTE,0x0808); /*0c*/
1207+
1208+ /* out3 configure, invert to HPMIXR */
1209+ /* zy_ac97_acodec_write(p_device_context,DAC_3D_CTRL_INV_MUX_SEL, 0x8000); */ /*1e*/
1210+
1211+ /* output control */
1212+ /* select HPMIXR HPMIXL out */
1213+ /* other out are all VIM */
1214+ zy_ac97_acodec_write(p_device_context,OUTPUT_PGA_MUX, 0x9BA8); /*1c*/
1215+
1216+ /* set sample rates */
1217+ /* enable variable rate conversion */
1218+ zy_ac97_acodec_write(p_device_context, EXTENDED_AUD_STAT_CTRL , 0x1); /*2a*/
1219+ /* DAC 44kHZ */
1220+ zy_ac97_acodec_write(p_device_context,AUDIO_DAC_RATE,0xac44); /*2c*/
1221+ /* ADC 16KHZ */
1222+ zy_ac97_acodec_write(p_device_context,AUDIO_ADC_RATE,0x3E80); /*32*/
1223+
1224+ /* clock scheme, use external clock, it is 24MHZ from MCLK_A */
1225+
1226+
1227+ zy_ac97_acodec_read(p_device_context, MCLK_PLL_CTRL_1, &value);
1228+ zy_ac97_acodec_write(p_device_context, MCLK_PLL_CTRL_1, value | 0x2);
1229+
1230+ return ZY_ACODEC_SUCCESS;
1231+}
1232+
1233+zy_acodec_error_t zy_wm9713_specific_deinit (zy_acocec_context_t *p_device_context)
1234+{/* do later: shut down all power */
1235+ unsigned short value = 0;
1236+
1237+ /* close the power of all units */
1238+ zy_ac97_acodec_write(p_device_context, POWER_DOWN_1, 0xffff);
1239+ zy_ac97_acodec_write(p_device_context, POWER_DOWN_2, 0xffff);
1240+ zy_ac97_acodec_read(p_device_context, POWER_DOWN_1, &value);
1241+ value &= ~(ZY_AC97_9713_PWR_MBIAS);
1242+ zy_ac97_acodec_write(p_device_context, POWER_DOWN_1, value);
1243+
1244+ return ZY_ACODEC_SUCCESS;
1245+}
1246+
1247+zy_acodec_error_t zy_acodec_set_pen_down_interrupt(zy_acocec_context_t *p_device_context, int enable)
1248+{/* disable/enable pen down interrupt in the codec. This function is not implemented for Wm9713 */
1249+ /* because the pen down detection could not be disabled in codec */
1250+ return ZY_ACODEC_SUCCESS;
1251+}
1252+
1253+zy_acodec_error_t zy_wm9713_enable_touch(zy_acocec_context_t *p_device_context)
1254+{/* enable touch functionality in the codec */
1255+ zy_acodec_error_t status = ZY_ACODEC_SUCCESS;
1256+ unsigned short value;
1257+
1258+ /* power setting */
1259+ status = zy_ac97_acodec_read(p_device_context, POWER_DOWN_1, &value);
1260+ value &= ~(ZY_AC97_9713_PWR_PADCPD);
1261+ status = zy_ac97_acodec_write(p_device_context, POWER_DOWN_1, value);
1262+
1263+ /* basic touch setting */
1264+ status = zy_ac97_acodec_write(p_device_context, DIGITIZER_3_WM13, 0xc008);
1265+ status = zy_ac97_acodec_write(p_device_context, DIGITIZER_2_WM13, 0x6);
1266+
1267+
1268+ /* 9713 powerdown virtual gpio setting (polarity, sticky, wakeup) */
1269+ /* 9713 gpio 2(pin45) route to IRQ */
1270+ /* Notes: Can use defaults for IRQ polarity, PENDOWN polarity in IRQ, */
1271+ /* sticky for PENDOWN in IRQ and wakeup for PENDOWN. */
1272+ status = zy_ac97_acodec_read(p_device_context, GPIO_PIN_CFG, &value);
1273+ value &= ~(0x4);
1274+ status = zy_ac97_acodec_write(p_device_context, GPIO_PIN_CFG, value);
1275+
1276+ status = zy_ac97_acodec_read(p_device_context, GPIO_PIN_SHARING, &value);
1277+ value &= ~(0x4);
1278+ status = zy_ac97_acodec_write(p_device_context, GPIO_PIN_SHARING, value);
1279+
1280+ status = zy_ac97_acodec_read(p_device_context, GPIO_PIN_WAKEUP, &value);
1281+ value |= (0x2000);
1282+ status = zy_ac97_acodec_write(p_device_context, GPIO_PIN_WAKEUP, value);
1283+
1284+ status = zy_ac97_acodec_read(p_device_context, GPIO_PIN_STICKY, &value);
1285+ value |= (0x2000);
1286+ status = zy_ac97_acodec_write(p_device_context, GPIO_PIN_STICKY, value);
1287+
1288+ return status;
1289+}
1290+
1291+zy_acodec_error_t zy_wm9713_disable_touch(zy_acocec_context_t *p_device_context)
1292+{/* disable touch functionality in the codec */
1293+ zy_acodec_error_t status = ZY_ACODEC_SUCCESS;
1294+ unsigned short value;
1295+
1296+ /* power setting */
1297+ status = zy_ac97_acodec_read(p_device_context, POWER_DOWN_1, &value);
1298+ value |= (ZY_AC97_9713_PWR_PADCPD);
1299+ status = zy_ac97_acodec_write(p_device_context, POWER_DOWN_1, value);
1300+
1301+ return status;
1302+}
1303+zy_acodec_error_t zy_ac97_acodec_mfp_deinit(zy_acocec_context_t *p_device_context)
1304+{/* do later: free all MFP resources. */
1305+ return ZY_ACODEC_SUCCESS;
1306+}
1307+
1308+static zy_acodec_error_t zy_ac97_acodec_shut_down_aclink(p_zy_ac97acodec_t p_ac97_reg, int * p_ost_regs)
1309+{
1310+ zy_acodec_error_t status = ZY_ACODEC_SUCCESS;
1311+ unsigned long time_remaining = ZY_AC97_LINKOFF_TIMEOUT_DEF;
1312+
1313+ p_ac97_reg->gcr |= ZY_AC97_GCR_LINK_OFF_MSK;
1314+ p_ac97_reg->gcr |= ZY_AC97_GCR_CLKBPB_MSK;
1315+
1316+ while (!(p_ac97_reg->gsr & ZY_AC97_GSR_ACOFFD_MSK))
1317+ {
1318+ time_remaining --;
1319+ if (0 == time_remaining)
1320+ {
1321+ status = ZY_ACODEC_CONTROLLER_INTERFACE_TIMEOUT;
1322+ break;
1323+ }
1324+ udelay(1);
1325+ }
1326+ p_ac97_reg->gcr |= ZY_AC97_GCR_FRCRST_MSK;
1327+ /* check later: any delay needed */
1328+ p_ac97_reg->gcr &= ~ZY_AC97_GCR_FRCRST_MSK;
1329+ p_ac97_reg->gcr &= ~ZY_AC97_GCR_CLKBPB_MSK;
1330+
1331+ return(status);
1332+}
1333+
1334+
1335+zy_acodec_error_t zy_ac97_acodec_deinit(zy_acocec_context_t * p_ac97_ctxt)
1336+{
1337+ zy_acodec_error_t status ;
1338+
1339+ status = zy_ac97_acodec_shut_down_aclink((p_zy_ac97acodec_t)(p_ac97_ctxt->p_ctrl_reg), p_ac97_ctxt->p_ost_regs);
1340+
1341+ return (status);
1342+}
1343+
1344+zy_acodec_error_t zy_acodec_deinit(zy_acocec_context_t *p_device_context)
1345+{
1346+ /* power down codec by codec specific power down function */
1347+ if (p_device_context->g_pfn_codec_specific_dinit)
1348+ {
1349+ p_device_context->g_pfn_codec_specific_dinit(p_device_context);
1350+ }
1351+ /* call bus deinit function */
1352+ zy_ac97_acodec_deinit(p_device_context);
1353+ /* restore MFP, set GPIO to suitable value */
1354+ zy_ac97_acodec_mfp_deinit(p_device_context);
1355+
1356+ return ZY_ACODEC_SUCCESS;
1357+}
1358+
1359+void alsa_zy_codec_put(p_zy_acocec_context_t p_acodectxt)
1360+{
1361+
1362+ zy_acodec_deinit(p_acodectxt);
1363+ //pxa_set_cken(24, 0);
1364+ CKENA &= ~(1 << 24);
1365+
1366+ if(p_acodectxt->p_save_memory){
1367+ kfree(p_saved_memory);
1368+ }
1369+ if(p_acodectxt->p_zy_scenario){
1370+ kfree(p_zy_scenario);
1371+ }
1372+}
1373+
1374+
1375+zy_acodec_error_t zy_acodec_init(zy_acocec_context_t *p_device_context, int hw_init)
1376+{
1377+ /* set codec specific functions
1378+ * set mfp for Zylonite platform
1379+ * call bus init function (AC97, I2S, I2C, SSP)
1380+ * call specific init of codec
1381+ */
1382+ zy_acodec_error_t retval = ZY_ACODEC_SUCCESS;
1383+
1384+ if (p_device_context->acodec_id != WM_9713_ID)
1385+ {/* on Zylonite, it is Wolfson 9713 codec only */
1386+ return ZY_ACODEC_GENERAL_SW_ERR;
1387+ }
1388+
1389+ if (1 == hw_init)
1390+ {
1391+ zy_ac97_acodec_mfp_init(p_device_context);
1392+ zy_ac97_acodec_init(p_device_context); /* codec init common to ac97 */
1393+ }
1394+
1395+ /* wm9713-specific functions */
1396+ (p_device_context->g_pfn_codec_specific_init) = zy_wm9713_specific_init;
1397+ (p_device_context->g_pfn_codec_specific_dinit) = zy_wm9713_specific_deinit;
1398+ (p_device_context->g_pfn_acodec_read) = zy_ac97_acodec_read;
1399+ (p_device_context->g_pfn_acodec_write) = zy_ac97_acodec_write;
1400+
1401+ (p_device_context->g_pfn_event_ack) = zy_wm9713_event_ack;
1402+ (p_device_context->g_pfn_get_event) = zy_wm9713_get_event;
1403+ (p_device_context->g_pfn_disable_touch) = zy_wm9713_disable_touch;
1404+ (p_device_context->g_pfn_enable_touch) = zy_wm9713_enable_touch;
1405+
1406+ if (1 == hw_init)
1407+ {
1408+ retval = p_device_context->g_pfn_codec_specific_init(p_device_context);
1409+ }
1410+
1411+ return retval;
1412+}
1413+
1414+static int __devinit touch_codec_zy_probe(struct platform_device *dev)
1415+{
1416+ int ret = 0;
1417+ struct snd_card *card = NULL;
1418+ zy_acodec_error_t status;
1419+
1420+ /* will increase codec context use count */
1421+ ret = alsa_prepare_for_zy(&p_zy_codec_ctxt);
1422+ if (ret)
1423+ goto err;
1424+
1425+ /* codec specific initialization, audio will do it either */
1426+ if (1 == p_zy_codec_ctxt->use_count) {
1427+ status = zy_acodec_init(p_zy_codec_ctxt, 1);
1428+ if (ZY_ACODEC_SUCCESS != status) {
1429+ printk(KERN_ERR "initialize codec error\n");
1430+ ret = -EIO;
1431+ goto err;
1432+ }
1433+
1434+ /* power down the units of the acodec, sleep the acodec, zy_acodec_init()
1435+ * will open all the units' power of the codec while ALSA need all the codec
1436+ * units power down and the codec should sleep if it can.
1437+ * So on the zylonite platform we call below function to power down and sleep
1438+ * wm9713 codec.
1439+ */
1440+ p_zy_codec_ctxt->g_pfn_codec_specific_dinit(p_zy_codec_ctxt);
1441+
1442+ }
1443+
1444+ alsa_ts_init();
1445+
1446+ //mhn_mfp_set_afds(MFP_AC97_INT_N_GPIO,0,0);
1447+ //mhn_gpio_set_direction(MFP_AC97_INT_N_GPIO, GPIO_DIR_IN);
1448+ //mhn_gpio_clear_edge_detect_status(MFP_AC97_INT_N_GPIO);
1449+ gpio_direction_input(mfp_to_gpio(MFP_PIN_GPIO26));
1450+ ret = request_irq(IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO26)),
1451+ pxa_touch_irq, IRQF_TRIGGER_RISING,
1452+ "wm9713 touch event interrupt", NULL);
1453+ if (ret) {
1454+ printk(KERN_ERR "Request IRQ for touch failed (%d).\n", ret);
1455+ goto err;
1456+ }
1457+
1458+ return 0;
1459+err:
1460+ if (p_zy_codec_ctxt && (!--p_zy_codec_ctxt->use_count)) {
1461+ zy_acodec_deinit(p_zy_codec_ctxt);
1462+ //pxa_set_cken(24, 0);
1463+ CKENA &= ~(1 << 24);
1464+ kfree(p_zy_codec_ctxt);
1465+ p_zy_codec_ctxt = NULL;
1466+ }
1467+
1468+ if (card)
1469+ snd_card_free(card);
1470+
1471+ return ret;
1472+}
1473+
1474+static int __devexit touch_codec_zy_remove(struct platform_device *dev)
1475+{
1476+ struct snd_card *card = platform_get_drvdata(dev);
1477+
1478+ input_unregister_device(codec_zy_ts_input);
1479+
1480+ if (p_zy_codec_ctxt && (!--p_zy_codec_ctxt->use_count)) {
1481+ alsa_zy_codec_put(p_zy_codec_ctxt);
1482+ kfree(p_zy_codec_ctxt);
1483+ p_zy_codec_ctxt = NULL;
1484+ }
1485+
1486+ if (card) {
1487+ snd_card_free(card);
1488+ platform_set_drvdata(dev, NULL);
1489+ }
1490+
1491+ return 0;
1492+}
1493+
1494+#ifdef CONFIG_PM
1495+static int touch_codec_zy_suspend(struct platform_device *_dev, pm_message_t state, u32 level)
1496+{
1497+ int ret=0;
1498+
1499+ if (level == SUSPEND_DISABLE) {
1500+ ret = audio_codec_zy_do_suspend(NULL, SNDRV_CTL_POWER_D3cold, p_zy_codec_ctxt);
1501+ touch_suspend = 1;
1502+ }
1503+ return ret;
1504+}
1505+
1506+static int touch_codec_zy_resume(struct platform_device *_dev, u32 level)
1507+{
1508+ int ret = 0;
1509+
1510+ if (level == RESUME_ENABLE) {
1511+ ret = audio_codec_zy_do_resume(NULL, SNDRV_CTL_POWER_D0, p_zy_codec_ctxt);
1512+ touch_suspend = 0;
1513+ }
1514+ return ret;
1515+}
1516+#else
1517+#define touch_codec_zy_suspend NULL
1518+#define touch_codec_zy_resume NULL
1519+#endif
1520+
1521+static struct platform_driver touch_codec_zy_driver = {
1522+ .probe = touch_codec_zy_probe,
1523+ .remove = __devexit_p(touch_codec_zy_remove),
1524+ .suspend= touch_codec_zy_suspend,
1525+ .resume = touch_codec_zy_resume,
1526+ .driver = {
1527+ .name = "pxa2xx-touch",
1528+ },
1529+};
1530+
1531+static int __init touch_codec_zy_init(void)
1532+{
1533+ return platform_driver_register(&touch_codec_zy_driver);
1534+}
1535+
1536+static void __exit touch_code_zy_exit(void)
1537+{
1538+ platform_driver_unregister(&touch_codec_zy_driver);
1539+}
1540+module_init(touch_codec_zy_init);
1541+module_exit(touch_code_zy_exit);
1542+
1543+EXPORT_SYMBOL(p_zy_codec_ctxt);
1544+
1545+MODULE_AUTHOR("bridge.wu@marvell.com");
1546+MODULE_DESCRIPTION("zylonite audio touch codec driver on ALSA");
1547+MODULE_LICENSE("GPL");
1548+
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-04-27 07:27:55 +0000