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Diffstat (limited to 'extras/recipes-kernel/linux/linux-omap/wl1271/0010-drivers-media-radio-wl128x-FM-driver-RX-sources.patch')
-rw-r--r--extras/recipes-kernel/linux/linux-omap/wl1271/0010-drivers-media-radio-wl128x-FM-driver-RX-sources.patch938
1 files changed, 938 insertions, 0 deletions
diff --git a/extras/recipes-kernel/linux/linux-omap/wl1271/0010-drivers-media-radio-wl128x-FM-driver-RX-sources.patch b/extras/recipes-kernel/linux/linux-omap/wl1271/0010-drivers-media-radio-wl128x-FM-driver-RX-sources.patch
new file mode 100644
index 00000000..8899a318
--- /dev/null
+++ b/extras/recipes-kernel/linux/linux-omap/wl1271/0010-drivers-media-radio-wl128x-FM-driver-RX-sources.patch
@@ -0,0 +1,938 @@
1From ba32e1ae2a43f33dcfd459c1456d4e612da885db Mon Sep 17 00:00:00 2001
2From: Manjunatha Halli <manjunatha_halli@ti.com>
3Date: Tue, 11 Jan 2011 11:31:24 +0000
4Subject: [PATCH 10/15] drivers:media:radio: wl128x: FM driver RX sources
5
6This has implementation for FM RX functionality.
7It communicates with FM V4l2 module and FM common module
8
9Signed-off-by: Manjunatha Halli <manjunatha_halli@ti.com>
10Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
11---
12 drivers/media/radio/wl128x/fmdrv_rx.c | 847 +++++++++++++++++++++++++++++++++
13 drivers/media/radio/wl128x/fmdrv_rx.h | 59 +++
14 2 files changed, 906 insertions(+), 0 deletions(-)
15 create mode 100644 drivers/media/radio/wl128x/fmdrv_rx.c
16 create mode 100644 drivers/media/radio/wl128x/fmdrv_rx.h
17
18diff --git a/drivers/media/radio/wl128x/fmdrv_rx.c b/drivers/media/radio/wl128x/fmdrv_rx.c
19new file mode 100644
20index 0000000..ec529b5
21--- /dev/null
22+++ b/drivers/media/radio/wl128x/fmdrv_rx.c
23@@ -0,0 +1,847 @@
24+/*
25+ * FM Driver for Connectivity chip of Texas Instruments.
26+ * This sub-module of FM driver implements FM RX functionality.
27+ *
28+ * Copyright (C) 2011 Texas Instruments
29+ * Author: Raja Mani <raja_mani@ti.com>
30+ * Author: Manjunatha Halli <manjunatha_halli@ti.com>
31+ *
32+ * This program is free software; you can redistribute it and/or modify
33+ * it under the terms of the GNU General Public License version 2 as
34+ * published by the Free Software Foundation.
35+ *
36+ * This program is distributed in the hope that it will be useful,
37+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
38+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
39+ * GNU General Public License for more details.
40+ *
41+ * You should have received a copy of the GNU General Public License
42+ * along with this program; if not, write to the Free Software
43+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
44+ *
45+ */
46+
47+#include "fmdrv.h"
48+#include "fmdrv_common.h"
49+#include "fmdrv_rx.h"
50+
51+void fm_rx_reset_rds_cache(struct fmdev *fmdev)
52+{
53+ fmdev->rx.rds.flag = FM_RDS_DISABLE;
54+ fmdev->rx.rds.last_blk_idx = 0;
55+ fmdev->rx.rds.wr_idx = 0;
56+ fmdev->rx.rds.rd_idx = 0;
57+
58+ if (fmdev->rx.af_mode == FM_RX_RDS_AF_SWITCH_MODE_ON)
59+ fmdev->irq_info.mask |= FM_LEV_EVENT;
60+}
61+
62+void fm_rx_reset_station_info(struct fmdev *fmdev)
63+{
64+ fmdev->rx.stat_info.picode = FM_NO_PI_CODE;
65+ fmdev->rx.stat_info.afcache_size = 0;
66+ fmdev->rx.stat_info.af_list_max = 0;
67+}
68+
69+u32 fm_rx_set_freq(struct fmdev *fmdev, u32 freq)
70+{
71+ unsigned long timeleft;
72+ u16 payload, curr_frq, intr_flag;
73+ u32 curr_frq_in_khz;
74+ u32 ret, resp_len;
75+
76+ if (freq < fmdev->rx.region.bot_freq || freq > fmdev->rx.region.top_freq) {
77+ fmerr("Invalid frequency %d\n", freq);
78+ return -EINVAL;
79+ }
80+
81+ /* Set audio enable */
82+ payload = FM_RX_AUDIO_ENABLE_I2S_AND_ANALOG;
83+
84+ ret = fmc_send_cmd(fmdev, AUDIO_ENABLE_SET, REG_WR, &payload,
85+ sizeof(payload), NULL, NULL);
86+ if (ret < 0)
87+ return ret;
88+
89+ /* Set hilo to automatic selection */
90+ payload = FM_RX_IFFREQ_HILO_AUTOMATIC;
91+ ret = fmc_send_cmd(fmdev, HILO_SET, REG_WR, &payload,
92+ sizeof(payload), NULL, NULL);
93+ if (ret < 0)
94+ return ret;
95+
96+ /* Calculate frequency index and set*/
97+ payload = (freq - fmdev->rx.region.bot_freq) / FM_FREQ_MUL;
98+
99+ ret = fmc_send_cmd(fmdev, FREQ_SET, REG_WR, &payload,
100+ sizeof(payload), NULL, NULL);
101+ if (ret < 0)
102+ return ret;
103+
104+ /* Read flags - just to clear any pending interrupts if we had */
105+ ret = fmc_send_cmd(fmdev, FLAG_GET, REG_RD, NULL, 2, NULL, NULL);
106+ if (ret < 0)
107+ return ret;
108+
109+ /* Enable FR, BL interrupts */
110+ intr_flag = fmdev->irq_info.mask;
111+ fmdev->irq_info.mask = (FM_FR_EVENT | FM_BL_EVENT);
112+ payload = fmdev->irq_info.mask;
113+ ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
114+ sizeof(payload), NULL, NULL);
115+ if (ret < 0)
116+ return ret;
117+
118+ /* Start tune */
119+ payload = FM_TUNER_PRESET_MODE;
120+ ret = fmc_send_cmd(fmdev, TUNER_MODE_SET, REG_WR, &payload,
121+ sizeof(payload), NULL, NULL);
122+ if (ret < 0)
123+ goto exit;
124+
125+ /* Wait for tune ended interrupt */
126+ init_completion(&fmdev->maintask_comp);
127+ timeleft = wait_for_completion_timeout(&fmdev->maintask_comp,
128+ FM_DRV_TX_TIMEOUT);
129+ if (!timeleft) {
130+ fmerr("Timeout(%d sec),didn't get tune ended int\n",
131+ jiffies_to_msecs(FM_DRV_TX_TIMEOUT) / 1000);
132+ ret = -ETIMEDOUT;
133+ goto exit;
134+ }
135+
136+ /* Read freq back to confirm */
137+ ret = fmc_send_cmd(fmdev, FREQ_SET, REG_RD, NULL, 2, &curr_frq, &resp_len);
138+ if (ret < 0)
139+ goto exit;
140+
141+ curr_frq = be16_to_cpu(curr_frq);
142+ curr_frq_in_khz = (fmdev->rx.region.bot_freq + ((u32)curr_frq * FM_FREQ_MUL));
143+
144+ if (curr_frq_in_khz != freq) {
145+ pr_info("Frequency is set to (%d) but "
146+ "requested freq is (%d)\n", curr_frq_in_khz, freq);
147+ }
148+
149+ /* Update local cache */
150+ fmdev->rx.freq = curr_frq_in_khz;
151+exit:
152+ /* Re-enable default FM interrupts */
153+ fmdev->irq_info.mask = intr_flag;
154+ payload = fmdev->irq_info.mask;
155+ ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
156+ sizeof(payload), NULL, NULL);
157+ if (ret < 0)
158+ return ret;
159+
160+ /* Reset RDS cache and current station pointers */
161+ fm_rx_reset_rds_cache(fmdev);
162+ fm_rx_reset_station_info(fmdev);
163+
164+ return ret;
165+}
166+
167+static u32 fm_rx_set_channel_spacing(struct fmdev *fmdev, u32 spacing)
168+{
169+ u16 payload;
170+ u32 ret;
171+
172+ if (spacing > 0 && spacing <= 50000)
173+ spacing = FM_CHANNEL_SPACING_50KHZ;
174+ else if (spacing > 50000 && spacing <= 100000)
175+ spacing = FM_CHANNEL_SPACING_100KHZ;
176+ else
177+ spacing = FM_CHANNEL_SPACING_200KHZ;
178+
179+ /* set channel spacing */
180+ payload = spacing;
181+ ret = fmc_send_cmd(fmdev, CHANL_BW_SET, REG_WR, &payload,
182+ sizeof(payload), NULL, NULL);
183+ if (ret < 0)
184+ return ret;
185+
186+ fmdev->rx.region.chanl_space = spacing * FM_FREQ_MUL;
187+
188+ return ret;
189+}
190+
191+u32 fm_rx_seek(struct fmdev *fmdev, u32 seek_upward,
192+ u32 wrap_around, u32 spacing)
193+{
194+ u32 resp_len;
195+ u16 curr_frq, next_frq, last_frq;
196+ u16 payload, int_reason, intr_flag;
197+ u16 offset, space_idx;
198+ unsigned long timeleft;
199+ u32 ret;
200+
201+ /* Set channel spacing */
202+ ret = fm_rx_set_channel_spacing(fmdev, spacing);
203+ if (ret < 0) {
204+ fmerr("Failed to set channel spacing\n");
205+ return ret;
206+ }
207+
208+ /* Read the current frequency from chip */
209+ ret = fmc_send_cmd(fmdev, FREQ_SET, REG_RD, NULL,
210+ sizeof(curr_frq), &curr_frq, &resp_len);
211+ if (ret < 0)
212+ return ret;
213+
214+ curr_frq = be16_to_cpu(curr_frq);
215+ last_frq = (fmdev->rx.region.top_freq - fmdev->rx.region.bot_freq) / FM_FREQ_MUL;
216+
217+ /* Check the offset in order to be aligned to the channel spacing*/
218+ space_idx = fmdev->rx.region.chanl_space / FM_FREQ_MUL;
219+ offset = curr_frq % space_idx;
220+
221+ next_frq = seek_upward ? curr_frq + space_idx /* Seek Up */ :
222+ curr_frq - space_idx /* Seek Down */ ;
223+
224+ /*
225+ * Add or subtract offset in order to stay aligned to the channel
226+ * spacing.
227+ */
228+ if ((short)next_frq < 0)
229+ next_frq = last_frq - offset;
230+ else if (next_frq > last_frq)
231+ next_frq = 0 + offset;
232+
233+again:
234+ /* Set calculated next frequency to perform seek */
235+ payload = next_frq;
236+ ret = fmc_send_cmd(fmdev, FREQ_SET, REG_WR, &payload,
237+ sizeof(payload), NULL, NULL);
238+ if (ret < 0)
239+ return ret;
240+
241+ /* Set search direction (0:Seek Down, 1:Seek Up) */
242+ payload = (seek_upward ? FM_SEARCH_DIRECTION_UP : FM_SEARCH_DIRECTION_DOWN);
243+ ret = fmc_send_cmd(fmdev, SEARCH_DIR_SET, REG_WR, &payload,
244+ sizeof(payload), NULL, NULL);
245+ if (ret < 0)
246+ return ret;
247+
248+ /* Read flags - just to clear any pending interrupts if we had */
249+ ret = fmc_send_cmd(fmdev, FLAG_GET, REG_RD, NULL, 2, NULL, NULL);
250+ if (ret < 0)
251+ return ret;
252+
253+ /* Enable FR, BL interrupts */
254+ intr_flag = fmdev->irq_info.mask;
255+ fmdev->irq_info.mask = (FM_FR_EVENT | FM_BL_EVENT);
256+ payload = fmdev->irq_info.mask;
257+ ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
258+ sizeof(payload), NULL, NULL);
259+ if (ret < 0)
260+ return ret;
261+
262+ /* Start seek */
263+ payload = FM_TUNER_AUTONOMOUS_SEARCH_MODE;
264+ ret = fmc_send_cmd(fmdev, TUNER_MODE_SET, REG_WR, &payload,
265+ sizeof(payload), NULL, NULL);
266+ if (ret < 0)
267+ return ret;
268+
269+ /* Wait for tune ended/band limit reached interrupt */
270+ init_completion(&fmdev->maintask_comp);
271+ timeleft = wait_for_completion_timeout(&fmdev->maintask_comp,
272+ FM_DRV_RX_SEEK_TIMEOUT);
273+ if (!timeleft) {
274+ fmerr("Timeout(%d sec),didn't get tune ended int\n",
275+ jiffies_to_msecs(FM_DRV_RX_SEEK_TIMEOUT) / 1000);
276+ return -ETIMEDOUT;
277+ }
278+
279+ int_reason = fmdev->irq_info.flag & (FM_TUNE_COMPLETE | FM_BAND_LIMIT);
280+
281+ /* Re-enable default FM interrupts */
282+ fmdev->irq_info.mask = intr_flag;
283+ payload = fmdev->irq_info.mask;
284+ ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
285+ sizeof(payload), NULL, NULL);
286+ if (ret < 0)
287+ return ret;
288+
289+ if (int_reason & FM_BL_EVENT) {
290+ if (wrap_around == 0) {
291+ fmdev->rx.freq = seek_upward ?
292+ fmdev->rx.region.top_freq :
293+ fmdev->rx.region.bot_freq;
294+ } else {
295+ fmdev->rx.freq = seek_upward ?
296+ fmdev->rx.region.bot_freq :
297+ fmdev->rx.region.top_freq;
298+ /* Calculate frequency index to write */
299+ next_frq = (fmdev->rx.freq -
300+ fmdev->rx.region.bot_freq) / FM_FREQ_MUL;
301+ goto again;
302+ }
303+ } else {
304+ /* Read freq to know where operation tune operation stopped */
305+ ret = fmc_send_cmd(fmdev, FREQ_SET, REG_RD, NULL, 2,
306+ &curr_frq, &resp_len);
307+ if (ret < 0)
308+ return ret;
309+
310+ curr_frq = be16_to_cpu(curr_frq);
311+ fmdev->rx.freq = (fmdev->rx.region.bot_freq +
312+ ((u32)curr_frq * FM_FREQ_MUL));
313+
314+ }
315+ /* Reset RDS cache and current station pointers */
316+ fm_rx_reset_rds_cache(fmdev);
317+ fm_rx_reset_station_info(fmdev);
318+
319+ return ret;
320+}
321+
322+u32 fm_rx_set_volume(struct fmdev *fmdev, u16 vol_to_set)
323+{
324+ u16 payload;
325+ u32 ret;
326+
327+ if (fmdev->curr_fmmode != FM_MODE_RX)
328+ return -EPERM;
329+
330+ if (vol_to_set < FM_RX_VOLUME_MIN || vol_to_set > FM_RX_VOLUME_MAX) {
331+ fmerr("Volume is not within(%d-%d) range\n",
332+ FM_RX_VOLUME_MIN, FM_RX_VOLUME_MAX);
333+ return -EINVAL;
334+ }
335+ vol_to_set *= FM_RX_VOLUME_GAIN_STEP;
336+
337+ payload = vol_to_set;
338+ ret = fmc_send_cmd(fmdev, VOLUME_SET, REG_WR, &payload,
339+ sizeof(payload), NULL, NULL);
340+ if (ret < 0)
341+ return ret;
342+
343+ fmdev->rx.volume = vol_to_set;
344+ return ret;
345+}
346+
347+/* Get volume */
348+u32 fm_rx_get_volume(struct fmdev *fmdev, u16 *curr_vol)
349+{
350+ if (fmdev->curr_fmmode != FM_MODE_RX)
351+ return -EPERM;
352+
353+ if (curr_vol == NULL) {
354+ fmerr("Invalid memory\n");
355+ return -ENOMEM;
356+ }
357+
358+ *curr_vol = fmdev->rx.volume / FM_RX_VOLUME_GAIN_STEP;
359+
360+ return 0;
361+}
362+
363+/* To get current band's bottom and top frequency */
364+u32 fm_rx_get_band_freq_range(struct fmdev *fmdev, u32 *bot_freq, u32 *top_freq)
365+{
366+ if (bot_freq != NULL)
367+ *bot_freq = fmdev->rx.region.bot_freq;
368+
369+ if (top_freq != NULL)
370+ *top_freq = fmdev->rx.region.top_freq;
371+
372+ return 0;
373+}
374+
375+/* Returns current band index (0-Europe/US; 1-Japan) */
376+void fm_rx_get_region(struct fmdev *fmdev, u8 *region)
377+{
378+ *region = fmdev->rx.region.fm_band;
379+}
380+
381+/* Sets band (0-Europe/US; 1-Japan) */
382+u32 fm_rx_set_region(struct fmdev *fmdev, u8 region_to_set)
383+{
384+ u16 payload;
385+ u32 new_frq = 0;
386+ u32 ret;
387+
388+ if (region_to_set != FM_BAND_EUROPE_US &&
389+ region_to_set != FM_BAND_JAPAN) {
390+ fmerr("Invalid band\n");
391+ return -EINVAL;
392+ }
393+
394+ if (fmdev->rx.region.fm_band == region_to_set) {
395+ fmerr("Requested band is already configured\n");
396+ return 0;
397+ }
398+
399+ /* Send cmd to set the band */
400+ payload = (u16)region_to_set;
401+ ret = fmc_send_cmd(fmdev, BAND_SET, REG_WR, &payload,
402+ sizeof(payload), NULL, NULL);
403+ if (ret < 0)
404+ return ret;
405+
406+ fmc_update_region_info(fmdev, region_to_set);
407+
408+ /* Check whether current RX frequency is within band boundary */
409+ if (fmdev->rx.freq < fmdev->rx.region.bot_freq)
410+ new_frq = fmdev->rx.region.bot_freq;
411+ else if (fmdev->rx.freq > fmdev->rx.region.top_freq)
412+ new_frq = fmdev->rx.region.top_freq;
413+
414+ if (new_frq) {
415+ fmdbg("Current freq is not within band limit boundary,"
416+ "switching to %d KHz\n", new_frq);
417+ /* Current RX frequency is not in range. So, update it */
418+ ret = fm_rx_set_freq(fmdev, new_frq);
419+ }
420+
421+ return ret;
422+}
423+
424+/* Reads current mute mode (Mute Off/On/Attenuate)*/
425+u32 fm_rx_get_mute_mode(struct fmdev *fmdev, u8 *curr_mute_mode)
426+{
427+ if (fmdev->curr_fmmode != FM_MODE_RX)
428+ return -EPERM;
429+
430+ if (curr_mute_mode == NULL) {
431+ fmerr("Invalid memory\n");
432+ return -ENOMEM;
433+ }
434+
435+ *curr_mute_mode = fmdev->rx.mute_mode;
436+
437+ return 0;
438+}
439+
440+static u32 fm_config_rx_mute_reg(struct fmdev *fmdev)
441+{
442+ u16 payload, muteval;
443+ u32 ret;
444+
445+ muteval = 0;
446+ switch (fmdev->rx.mute_mode) {
447+ case FM_MUTE_ON:
448+ muteval = FM_RX_AC_MUTE_MODE;
449+ break;
450+
451+ case FM_MUTE_OFF:
452+ muteval = FM_RX_UNMUTE_MODE;
453+ break;
454+
455+ case FM_MUTE_ATTENUATE:
456+ muteval = FM_RX_SOFT_MUTE_FORCE_MODE;
457+ break;
458+ }
459+ if (fmdev->rx.rf_depend_mute == FM_RX_RF_DEPENDENT_MUTE_ON)
460+ muteval |= FM_RX_RF_DEP_MODE;
461+ else
462+ muteval &= ~FM_RX_RF_DEP_MODE;
463+
464+ payload = muteval;
465+ ret = fmc_send_cmd(fmdev, MUTE_STATUS_SET, REG_WR, &payload,
466+ sizeof(payload), NULL, NULL);
467+ if (ret < 0)
468+ return ret;
469+
470+ return 0;
471+}
472+
473+/* Configures mute mode (Mute Off/On/Attenuate) */
474+u32 fm_rx_set_mute_mode(struct fmdev *fmdev, u8 mute_mode_toset)
475+{
476+ u8 org_state;
477+ u32 ret;
478+
479+ if (fmdev->rx.mute_mode == mute_mode_toset)
480+ return 0;
481+
482+ org_state = fmdev->rx.mute_mode;
483+ fmdev->rx.mute_mode = mute_mode_toset;
484+
485+ ret = fm_config_rx_mute_reg(fmdev);
486+ if (ret < 0) {
487+ fmdev->rx.mute_mode = org_state;
488+ return ret;
489+ }
490+
491+ return 0;
492+}
493+
494+/* Gets RF dependent soft mute mode enable/disable status */
495+u32 fm_rx_get_rfdepend_softmute(struct fmdev *fmdev, u8 *curr_mute_mode)
496+{
497+ if (fmdev->curr_fmmode != FM_MODE_RX)
498+ return -EPERM;
499+
500+ if (curr_mute_mode == NULL) {
501+ fmerr("Invalid memory\n");
502+ return -ENOMEM;
503+ }
504+
505+ *curr_mute_mode = fmdev->rx.rf_depend_mute;
506+
507+ return 0;
508+}
509+
510+/* Sets RF dependent soft mute mode */
511+u32 fm_rx_set_rfdepend_softmute(struct fmdev *fmdev, u8 rfdepend_mute)
512+{
513+ u8 org_state;
514+ u32 ret;
515+
516+ if (fmdev->curr_fmmode != FM_MODE_RX)
517+ return -EPERM;
518+
519+ if (rfdepend_mute != FM_RX_RF_DEPENDENT_MUTE_ON &&
520+ rfdepend_mute != FM_RX_RF_DEPENDENT_MUTE_OFF) {
521+ fmerr("Invalid RF dependent soft mute\n");
522+ return -EINVAL;
523+ }
524+ if (fmdev->rx.rf_depend_mute == rfdepend_mute)
525+ return 0;
526+
527+ org_state = fmdev->rx.rf_depend_mute;
528+ fmdev->rx.rf_depend_mute = rfdepend_mute;
529+
530+ ret = fm_config_rx_mute_reg(fmdev);
531+ if (ret < 0) {
532+ fmdev->rx.rf_depend_mute = org_state;
533+ return ret;
534+ }
535+
536+ return 0;
537+}
538+
539+/* Returns the signal strength level of current channel */
540+u32 fm_rx_get_rssi_level(struct fmdev *fmdev, u16 *rssilvl)
541+{
542+ u16 curr_rssi_lel;
543+ u32 resp_len;
544+ u32 ret;
545+
546+ if (rssilvl == NULL) {
547+ fmerr("Invalid memory\n");
548+ return -ENOMEM;
549+ }
550+ /* Read current RSSI level */
551+ ret = fmc_send_cmd(fmdev, RSSI_LVL_GET, REG_RD, NULL, 2,
552+ &curr_rssi_lel, &resp_len);
553+ if (ret < 0)
554+ return ret;
555+
556+ *rssilvl = be16_to_cpu(curr_rssi_lel);
557+
558+ return 0;
559+}
560+
561+/*
562+ * Sets the signal strength level that once reached
563+ * will stop the auto search process
564+ */
565+u32 fm_rx_set_rssi_threshold(struct fmdev *fmdev, short rssi_lvl_toset)
566+{
567+ u16 payload;
568+ u32 ret;
569+
570+ if (rssi_lvl_toset < FM_RX_RSSI_THRESHOLD_MIN ||
571+ rssi_lvl_toset > FM_RX_RSSI_THRESHOLD_MAX) {
572+ fmerr("Invalid RSSI threshold level\n");
573+ return -EINVAL;
574+ }
575+ payload = (u16)rssi_lvl_toset;
576+ ret = fmc_send_cmd(fmdev, SEARCH_LVL_SET, REG_WR, &payload,
577+ sizeof(payload), NULL, NULL);
578+ if (ret < 0)
579+ return ret;
580+
581+ fmdev->rx.rssi_threshold = rssi_lvl_toset;
582+
583+ return 0;
584+}
585+
586+/* Returns current RX RSSI threshold value */
587+u32 fm_rx_get_rssi_threshold(struct fmdev *fmdev, short *curr_rssi_lvl)
588+{
589+ if (fmdev->curr_fmmode != FM_MODE_RX)
590+ return -EPERM;
591+
592+ if (curr_rssi_lvl == NULL) {
593+ fmerr("Invalid memory\n");
594+ return -ENOMEM;
595+ }
596+
597+ *curr_rssi_lvl = fmdev->rx.rssi_threshold;
598+
599+ return 0;
600+}
601+
602+/* Sets RX stereo/mono modes */
603+u32 fm_rx_set_stereo_mono(struct fmdev *fmdev, u16 mode)
604+{
605+ u16 payload;
606+ u32 ret;
607+
608+ if (mode != FM_STEREO_MODE && mode != FM_MONO_MODE) {
609+ fmerr("Invalid mode\n");
610+ return -EINVAL;
611+ }
612+
613+ /* Set stereo/mono mode */
614+ payload = (u16)mode;
615+ ret = fmc_send_cmd(fmdev, MOST_MODE_SET, REG_WR, &payload,
616+ sizeof(payload), NULL, NULL);
617+ if (ret < 0)
618+ return ret;
619+
620+ /* Set stereo blending mode */
621+ payload = FM_STEREO_SOFT_BLEND;
622+ ret = fmc_send_cmd(fmdev, MOST_BLEND_SET, REG_WR, &payload,
623+ sizeof(payload), NULL, NULL);
624+ if (ret < 0)
625+ return ret;
626+
627+ return 0;
628+}
629+
630+/* Gets current RX stereo/mono mode */
631+u32 fm_rx_get_stereo_mono(struct fmdev *fmdev, u16 *mode)
632+{
633+ u16 curr_mode;
634+ u32 ret, resp_len;
635+
636+ if (mode == NULL) {
637+ fmerr("Invalid memory\n");
638+ return -ENOMEM;
639+ }
640+
641+ ret = fmc_send_cmd(fmdev, MOST_MODE_SET, REG_RD, NULL, 2,
642+ &curr_mode, &resp_len);
643+ if (ret < 0)
644+ return ret;
645+
646+ *mode = be16_to_cpu(curr_mode);
647+
648+ return 0;
649+}
650+
651+/* Choose RX de-emphasis filter mode (50us/75us) */
652+u32 fm_rx_set_deemphasis_mode(struct fmdev *fmdev, u16 mode)
653+{
654+ u16 payload;
655+ u32 ret;
656+
657+ if (fmdev->curr_fmmode != FM_MODE_RX)
658+ return -EPERM;
659+
660+ if (mode != FM_RX_EMPHASIS_FILTER_50_USEC &&
661+ mode != FM_RX_EMPHASIS_FILTER_75_USEC) {
662+ fmerr("Invalid rx de-emphasis mode (%d)\n", mode);
663+ return -EINVAL;
664+ }
665+
666+ payload = mode;
667+ ret = fmc_send_cmd(fmdev, DEMPH_MODE_SET, REG_WR, &payload,
668+ sizeof(payload), NULL, NULL);
669+ if (ret < 0)
670+ return ret;
671+
672+ fmdev->rx.deemphasis_mode = mode;
673+
674+ return 0;
675+}
676+
677+/* Gets current RX de-emphasis filter mode */
678+u32 fm_rx_get_deemph_mode(struct fmdev *fmdev, u16 *curr_deemphasis_mode)
679+{
680+ if (fmdev->curr_fmmode != FM_MODE_RX)
681+ return -EPERM;
682+
683+ if (curr_deemphasis_mode == NULL) {
684+ fmerr("Invalid memory\n");
685+ return -ENOMEM;
686+ }
687+
688+ *curr_deemphasis_mode = fmdev->rx.deemphasis_mode;
689+
690+ return 0;
691+}
692+
693+/* Enable/Disable RX RDS */
694+u32 fm_rx_set_rds_mode(struct fmdev *fmdev, u8 rds_en_dis)
695+{
696+ u16 payload;
697+ u32 ret;
698+
699+ if (rds_en_dis != FM_RDS_ENABLE && rds_en_dis != FM_RDS_DISABLE) {
700+ fmerr("Invalid rds option\n");
701+ return -EINVAL;
702+ }
703+
704+ if (rds_en_dis == FM_RDS_ENABLE
705+ && fmdev->rx.rds.flag == FM_RDS_DISABLE) {
706+ /* Turn on RX RDS and RDS circuit */
707+ payload = FM_RX_PWR_SET_FM_AND_RDS_BLK_ON;
708+ ret = fmc_send_cmd(fmdev, POWER_SET, REG_WR, &payload,
709+ sizeof(payload), NULL, NULL);
710+ if (ret < 0)
711+ return ret;
712+
713+ /* Clear and reset RDS FIFO */
714+ payload = FM_RX_RDS_FLUSH_FIFO;
715+ ret = fmc_send_cmd(fmdev, RDS_CNTRL_SET, REG_WR, &payload,
716+ sizeof(payload), NULL, NULL);
717+ if (ret < 0)
718+ return ret;
719+
720+ /* Read flags - just to clear any pending interrupts. */
721+ ret = fmc_send_cmd(fmdev, FLAG_GET, REG_RD, NULL, 2,
722+ NULL, NULL);
723+ if (ret < 0)
724+ return ret;
725+
726+ /* Set RDS FIFO threshold value */
727+ payload = FM_RX_RDS_FIFO_THRESHOLD;
728+ ret = fmc_send_cmd(fmdev, RDS_MEM_SET, REG_WR, &payload,
729+ sizeof(payload), NULL, NULL);
730+ if (ret < 0)
731+ return ret;
732+
733+ /* Enable RDS interrupt */
734+ fmdev->irq_info.mask |= FM_RDS_EVENT;
735+ payload = fmdev->irq_info.mask;
736+ ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
737+ sizeof(payload), NULL, NULL);
738+ if (ret < 0) {
739+ fmdev->irq_info.mask &= ~FM_RDS_EVENT;
740+ return ret;
741+ }
742+
743+ /* Update our local flag */
744+ fmdev->rx.rds.flag = FM_RDS_ENABLE;
745+ } else if (rds_en_dis == FM_RDS_DISABLE
746+ && fmdev->rx.rds.flag == FM_RDS_ENABLE) {
747+ /* Turn off RX RDS */
748+ payload = FM_RX_PWR_SET_FM_ON_RDS_OFF;
749+ ret = fmc_send_cmd(fmdev, POWER_SET, REG_WR, &payload,
750+ sizeof(payload), NULL, NULL);
751+ if (ret < 0)
752+ return ret;
753+
754+ /* Reset RDS pointers */
755+ fmdev->rx.rds.last_blk_idx = 0;
756+ fmdev->rx.rds.wr_idx = 0;
757+ fmdev->rx.rds.rd_idx = 0;
758+ fm_rx_reset_station_info(fmdev);
759+
760+ /* Update RDS local cache */
761+ fmdev->irq_info.mask &= ~(FM_RDS_EVENT);
762+ fmdev->rx.rds.flag = FM_RDS_DISABLE;
763+ }
764+
765+ return 0;
766+}
767+
768+/* Returns current RX RDS enable/disable status */
769+u32 fm_rx_get_rds_mode(struct fmdev *fmdev, u8 *curr_rds_en_dis)
770+{
771+ if (fmdev->curr_fmmode != FM_MODE_RX)
772+ return -EPERM;
773+
774+ if (curr_rds_en_dis == NULL) {
775+ fmerr("Invalid memory\n");
776+ return -ENOMEM;
777+ }
778+
779+ *curr_rds_en_dis = fmdev->rx.rds.flag;
780+
781+ return 0;
782+}
783+
784+/* Sets RDS operation mode (RDS/RDBS) */
785+u32 fm_rx_set_rds_system(struct fmdev *fmdev, u8 rds_mode)
786+{
787+ u16 payload;
788+ u32 ret;
789+
790+ if (fmdev->curr_fmmode != FM_MODE_RX)
791+ return -EPERM;
792+
793+ if (rds_mode != FM_RDS_SYSTEM_RDS && rds_mode != FM_RDS_SYSTEM_RBDS) {
794+ fmerr("Invalid rds mode\n");
795+ return -EINVAL;
796+ }
797+ /* Set RDS operation mode */
798+ payload = (u16)rds_mode;
799+ ret = fmc_send_cmd(fmdev, RDS_SYSTEM_SET, REG_WR, &payload,
800+ sizeof(payload), NULL, NULL);
801+ if (ret < 0)
802+ return ret;
803+
804+ fmdev->rx.rds_mode = rds_mode;
805+
806+ return 0;
807+}
808+
809+/* Returns current RDS operation mode */
810+u32 fm_rx_get_rds_system(struct fmdev *fmdev, u8 *rds_mode)
811+{
812+ if (fmdev->curr_fmmode != FM_MODE_RX)
813+ return -EPERM;
814+
815+ if (rds_mode == NULL) {
816+ fmerr("Invalid memory\n");
817+ return -ENOMEM;
818+ }
819+
820+ *rds_mode = fmdev->rx.rds_mode;
821+
822+ return 0;
823+}
824+
825+/* Configures Alternate Frequency switch mode */
826+u32 fm_rx_set_af_switch(struct fmdev *fmdev, u8 af_mode)
827+{
828+ u16 payload;
829+ u32 ret;
830+
831+ if (fmdev->curr_fmmode != FM_MODE_RX)
832+ return -EPERM;
833+
834+ if (af_mode != FM_RX_RDS_AF_SWITCH_MODE_ON &&
835+ af_mode != FM_RX_RDS_AF_SWITCH_MODE_OFF) {
836+ fmerr("Invalid af mode\n");
837+ return -EINVAL;
838+ }
839+ /* Enable/disable low RSSI interrupt based on af_mode */
840+ if (af_mode == FM_RX_RDS_AF_SWITCH_MODE_ON)
841+ fmdev->irq_info.mask |= FM_LEV_EVENT;
842+ else
843+ fmdev->irq_info.mask &= ~FM_LEV_EVENT;
844+
845+ payload = fmdev->irq_info.mask;
846+ ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload,
847+ sizeof(payload), NULL, NULL);
848+ if (ret < 0)
849+ return ret;
850+
851+ fmdev->rx.af_mode = af_mode;
852+
853+ return 0;
854+}
855+
856+/* Returns Alternate Frequency switch status */
857+u32 fm_rx_get_af_switch(struct fmdev *fmdev, u8 *af_mode)
858+{
859+ if (fmdev->curr_fmmode != FM_MODE_RX)
860+ return -EPERM;
861+
862+ if (af_mode == NULL) {
863+ fmerr("Invalid memory\n");
864+ return -ENOMEM;
865+ }
866+
867+ *af_mode = fmdev->rx.af_mode;
868+
869+ return 0;
870+}
871diff --git a/drivers/media/radio/wl128x/fmdrv_rx.h b/drivers/media/radio/wl128x/fmdrv_rx.h
872new file mode 100644
873index 0000000..329e62f
874--- /dev/null
875+++ b/drivers/media/radio/wl128x/fmdrv_rx.h
876@@ -0,0 +1,59 @@
877+/*
878+ * FM Driver for Connectivity chip of Texas Instruments.
879+ * FM RX module header.
880+ *
881+ * Copyright (C) 2011 Texas Instruments
882+ *
883+ * This program is free software; you can redistribute it and/or modify
884+ * it under the terms of the GNU General Public License version 2 as
885+ * published by the Free Software Foundation.
886+ *
887+ * This program is distributed in the hope that it will be useful,
888+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
889+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
890+ * GNU General Public License for more details.
891+ *
892+ * You should have received a copy of the GNU General Public License
893+ * along with this program; if not, write to the Free Software
894+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
895+ *
896+ */
897+
898+#ifndef _FMDRV_RX_H
899+#define _FMDRV_RX_H
900+
901+u32 fm_rx_set_freq(struct fmdev *, u32);
902+u32 fm_rx_set_mute_mode(struct fmdev *, u8);
903+u32 fm_rx_set_stereo_mono(struct fmdev *, u16);
904+u32 fm_rx_set_rds_mode(struct fmdev *, u8);
905+u32 fm_rx_set_rds_system(struct fmdev *, u8);
906+u32 fm_rx_set_volume(struct fmdev *, u16);
907+u32 fm_rx_set_rssi_threshold(struct fmdev *, short);
908+u32 fm_rx_set_region(struct fmdev *, u8);
909+u32 fm_rx_set_rfdepend_softmute(struct fmdev *, u8);
910+u32 fm_rx_set_deemphasis_mode(struct fmdev *, u16);
911+u32 fm_rx_set_af_switch(struct fmdev *, u8);
912+
913+void fm_rx_reset_rds_cache(struct fmdev *);
914+void fm_rx_reset_station_info(struct fmdev *);
915+
916+u32 fm_rx_seek(struct fmdev *, u32, u32, u32);
917+
918+u32 fm_rx_get_rds_mode(struct fmdev *, u8 *);
919+u32 fm_rx_get_rds_system(struct fmdev *, u8 *);
920+u32 fm_rx_get_mute_mode(struct fmdev *, u8 *);
921+u32 fm_rx_get_volume(struct fmdev *, u16 *);
922+u32 fm_rx_get_band_freq_range(struct fmdev *,
923+ u32 *, u32 *);
924+u32 fm_rx_get_stereo_mono(struct fmdev *, u16 *);
925+u32 fm_rx_get_rssi_level(struct fmdev *, u16 *);
926+u32 fm_rx_get_rssi_threshold(struct fmdev *, short *);
927+u32 fm_rx_get_rfdepend_softmute(struct fmdev *, u8 *);
928+u32 fm_rx_get_deemph_mode(struct fmdev *, u16 *);
929+u32 fm_rx_get_af_switch(struct fmdev *, u8 *);
930+void fm_rx_get_region(struct fmdev *, u8 *);
931+
932+u32 fm_rx_set_chanl_spacing(struct fmdev *, u8);
933+u32 fm_rx_get_chanl_spacing(struct fmdev *, u8 *);
934+#endif
935+
936--
9371.6.6.1
938
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