3 * device driver for philips saa7134 based TV cards
4 * tv audio decoder (fm stereo, nicam, ...)
6 * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #include "saa7134-reg.h"
26 #include <linux/init.h>
27 #include <linux/list.h>
28 #include <linux/module.h>
29 #include <linux/kernel.h>
30 #include <linux/kthread.h>
31 #include <linux/delay.h>
32 #include <linux/freezer.h>
33 #include <asm/div64.h>
35 /* ------------------------------------------------------------------ */
37 static unsigned int audio_debug;
38 module_param(audio_debug, int, 0644);
39 MODULE_PARM_DESC(audio_debug,"enable debug messages [tv audio]");
41 static unsigned int audio_ddep;
42 module_param(audio_ddep, int, 0644);
43 MODULE_PARM_DESC(audio_ddep,"audio ddep overwrite");
45 static int audio_clock_override = UNSET;
46 module_param(audio_clock_override, int, 0644);
48 static int audio_clock_tweak;
49 module_param(audio_clock_tweak, int, 0644);
50 MODULE_PARM_DESC(audio_clock_tweak, "Audio clock tick fine tuning for cards with audio crystal that's slightly off (range [-1024 .. 1024])");
52 #define audio_dbg(level, fmt, arg...) do { \
53 if (audio_debug >= level) \
54 printk(KERN_DEBUG pr_fmt("audio: " fmt), ## arg); \
58 #define SCAN_INITIAL_DELAY 1000
59 #define SCAN_SAMPLE_DELAY 200
60 #define SCAN_SUBCARRIER_DELAY 2000
62 /* ------------------------------------------------------------------ */
65 static struct mainscan {
76 .std = V4L2_STD_B | V4L2_STD_GH,
80 .std = V4L2_STD_PAL_I,
84 .std = V4L2_STD_DK | V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC,
89 static struct saa7134_tvaudio tvaudio[] = {
91 .name = "PAL-B/G FM-stereo",
92 .std = V4L2_STD_PAL_BG,
93 .mode = TVAUDIO_FM_BG_STEREO,
97 .name = "PAL-D/K1 FM-stereo",
98 .std = V4L2_STD_PAL_DK,
101 .mode = TVAUDIO_FM_BG_STEREO,
103 .name = "PAL-D/K2 FM-stereo",
104 .std = V4L2_STD_PAL_DK,
107 .mode = TVAUDIO_FM_BG_STEREO,
109 .name = "PAL-D/K3 FM-stereo",
110 .std = V4L2_STD_PAL_DK,
113 .mode = TVAUDIO_FM_BG_STEREO,
115 .name = "PAL-B/G NICAM",
116 .std = V4L2_STD_PAL_BG,
119 .mode = TVAUDIO_NICAM_FM,
121 .name = "PAL-I NICAM",
122 .std = V4L2_STD_PAL_I,
125 .mode = TVAUDIO_NICAM_FM,
127 .name = "PAL-D/K NICAM",
128 .std = V4L2_STD_PAL_DK,
131 .mode = TVAUDIO_NICAM_FM,
133 .name = "SECAM-L NICAM",
134 .std = V4L2_STD_SECAM_L,
137 .mode = TVAUDIO_NICAM_AM,
139 .name = "SECAM-D/K NICAM",
140 .std = V4L2_STD_SECAM_DK,
143 .mode = TVAUDIO_NICAM_FM,
145 .name = "NTSC-A2 FM-stereo",
146 .std = V4L2_STD_NTSC,
149 .mode = TVAUDIO_FM_K_STEREO,
152 .std = V4L2_STD_NTSC,
155 .mode = TVAUDIO_FM_MONO,
158 #define TVAUDIO ARRAY_SIZE(tvaudio)
160 /* ------------------------------------------------------------------ */
162 static u32 tvaudio_carr2reg(u32 carrier)
171 static void tvaudio_setcarrier(struct saa7134_dev *dev,
172 int primary, int secondary)
176 saa_writel(SAA7134_CARRIER1_FREQ0 >> 2, tvaudio_carr2reg(primary));
177 saa_writel(SAA7134_CARRIER2_FREQ0 >> 2, tvaudio_carr2reg(secondary));
180 #define SAA7134_MUTE_MASK 0xbb
181 #define SAA7134_MUTE_ANALOG 0x04
182 #define SAA7134_MUTE_I2S 0x40
184 static void mute_input_7134(struct saa7134_dev *dev)
187 struct saa7134_input *in;
188 int ausel=0, ics=0, ocs=0;
191 /* look what is to do ... */
193 mute = (dev->ctl_mute ||
194 (dev->automute && (&card(dev).radio) != in));
195 if (card(dev).mute.name) {
197 * 7130 - we'll mute using some unconnected audio input
198 * 7134 - we'll probably should switch external mux with gpio
201 in = &card(dev).mute;
204 if (dev->hw_mute == mute &&
205 dev->hw_input == in && !dev->insuspend) {
206 audio_dbg(1, "mute/input: nothing to do [mute=%d,input=%s]\n",
211 audio_dbg(1, "ctl_mute=%d automute=%d input=%s => mute=%d input=%s\n",
212 dev->ctl_mute, dev->automute,
213 dev->input->name, mute, in->name);
217 if (PCI_DEVICE_ID_PHILIPS_SAA7134 == dev->pci->device)
219 saa_writeb(SAA7134_AUDIO_MUTE_CTRL, mute ?
221 SAA7134_MUTE_ANALOG |
225 /* switch internal audio mux */
227 case TV: ausel=0xc0; ics=0x00; ocs=0x02; break;
228 case LINE1: ausel=0x80; ics=0x00; ocs=0x00; break;
229 case LINE2: ausel=0x80; ics=0x08; ocs=0x01; break;
230 case LINE2_LEFT: ausel=0x80; ics=0x08; ocs=0x05; break;
232 saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, ausel);
233 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x08, ics);
234 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, ocs);
235 // for oss, we need to change the clock configuration
237 saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x00);
239 saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x01);
241 /* switch gpio-connected external audio mux */
242 if (0 == card(dev).gpiomask)
245 mask = card(dev).gpiomask;
246 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, mask, mask);
247 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, mask, in->gpio);
248 saa7134_track_gpio(dev,in->name);
251 static void tvaudio_setmode(struct saa7134_dev *dev,
252 struct saa7134_tvaudio *audio,
257 if (dev->tvnorm->id == V4L2_STD_NTSC) {
262 if (audio_clock_tweak > -1024 && audio_clock_tweak < 1024)
263 tweak = audio_clock_tweak;
266 audio_dbg(1, "tvaudio_setmode: %s %s [%d.%03d/%d.%03d MHz] acpf=%d%+d\n",
268 audio->carr1 / 1000, audio->carr1 % 1000,
269 audio->carr2 / 1000, audio->carr2 % 1000,
273 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD0, (acpf & 0x0000ff) >> 0);
274 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD1, (acpf & 0x00ff00) >> 8);
275 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD2, (acpf & 0x030000) >> 16);
276 tvaudio_setcarrier(dev,audio->carr1,audio->carr2);
278 switch (audio->mode) {
279 case TVAUDIO_FM_MONO:
280 case TVAUDIO_FM_BG_STEREO:
281 saa_writeb(SAA7134_DEMODULATOR, 0x00);
282 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
283 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x22);
284 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
285 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa0);
287 case TVAUDIO_FM_K_STEREO:
288 saa_writeb(SAA7134_DEMODULATOR, 0x00);
289 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x01);
290 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x22);
291 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
292 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa0);
294 case TVAUDIO_NICAM_FM:
295 saa_writeb(SAA7134_DEMODULATOR, 0x10);
296 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
297 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x44);
298 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa1);
299 saa_writeb(SAA7134_NICAM_CONFIG, 0x00);
301 case TVAUDIO_NICAM_AM:
302 saa_writeb(SAA7134_DEMODULATOR, 0x12);
303 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
304 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x44);
305 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa1);
306 saa_writeb(SAA7134_NICAM_CONFIG, 0x00);
308 case TVAUDIO_FM_SAT_STEREO:
309 /* not implemented (yet) */
314 static int tvaudio_sleep(struct saa7134_dev *dev, int timeout)
316 if (dev->thread.scan1 == dev->thread.scan2 &&
317 !kthread_should_stop()) {
319 set_current_state(TASK_INTERRUPTIBLE);
322 schedule_timeout_interruptible
323 (msecs_to_jiffies(timeout));
326 return dev->thread.scan1 != dev->thread.scan2;
329 static int tvaudio_checkcarrier(struct saa7134_dev *dev, struct mainscan *scan)
331 __s32 left,right,value;
333 if (!(dev->tvnorm->id & scan->std)) {
335 audio_dbg(1, "skipping %d.%03d MHz [%4s]\n",
336 scan->carr / 1000, scan->carr % 1000, scan->name);
340 if (audio_debug > 1) {
342 audio_dbg(1, "debug %d:", scan->carr);
343 for (i = -150; i <= 150; i += 30) {
344 tvaudio_setcarrier(dev,scan->carr+i,scan->carr+i);
345 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
346 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
348 value = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
350 pr_cont(" # %6d # ", value >> 16);
352 pr_cont(" %6d", value >> 16);
357 tvaudio_setcarrier(dev,scan->carr-90,scan->carr-90);
358 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
359 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
361 left = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
363 tvaudio_setcarrier(dev,scan->carr+90,scan->carr+90);
364 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
365 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
367 right = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
371 value = left > right ? left - right : right - left;
372 audio_dbg(1, "scanning %d.%03d MHz [%4s] => dc is %5d [%d/%d]\n",
373 scan->carr / 1000, scan->carr % 1000,
374 scan->name, value, left, right);
379 static int tvaudio_getstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio)
381 __u32 idp, nicam, nicam_status;
384 switch (audio->mode) {
385 case TVAUDIO_FM_MONO:
386 return V4L2_TUNER_SUB_MONO;
387 case TVAUDIO_FM_K_STEREO:
388 case TVAUDIO_FM_BG_STEREO:
389 idp = (saa_readb(SAA7134_IDENT_SIF) & 0xe0) >> 5;
390 audio_dbg(1, "getstereo: fm/stereo: idp=0x%x\n", idp);
391 if (0x03 == (idp & 0x03))
392 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
393 else if (0x05 == (idp & 0x05))
394 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
395 else if (0x01 == (idp & 0x01))
396 retval = V4L2_TUNER_SUB_MONO;
398 case TVAUDIO_FM_SAT_STEREO:
399 /* not implemented (yet) */
401 case TVAUDIO_NICAM_FM:
402 case TVAUDIO_NICAM_AM:
403 nicam = saa_readb(SAA7134_AUDIO_STATUS);
404 audio_dbg(1, "getstereo: nicam=0x%x\n", nicam);
406 nicam_status = saa_readb(SAA7134_NICAM_STATUS);
407 audio_dbg(1, "getstereo: nicam_status=0x%x\n",
410 switch (nicam_status & 0x03) {
412 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
415 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
418 retval = V4L2_TUNER_SUB_MONO;
421 /* No nicam detected */
426 audio_dbg(1, "found audio subchannels:%s%s%s%s\n",
427 (retval & V4L2_TUNER_SUB_MONO) ? " mono" : "",
428 (retval & V4L2_TUNER_SUB_STEREO) ? " stereo" : "",
429 (retval & V4L2_TUNER_SUB_LANG1) ? " lang1" : "",
430 (retval & V4L2_TUNER_SUB_LANG2) ? " lang2" : "");
434 static int tvaudio_setstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio,
437 static char *name[] = {
438 [ V4L2_TUNER_MODE_MONO ] = "mono",
439 [ V4L2_TUNER_MODE_STEREO ] = "stereo",
440 [ V4L2_TUNER_MODE_LANG1 ] = "lang1",
441 [ V4L2_TUNER_MODE_LANG2 ] = "lang2",
442 [ V4L2_TUNER_MODE_LANG1_LANG2 ] = "lang1+lang2",
445 [ V4L2_TUNER_MODE_MONO ] = 0x00, /* ch1 */
446 [ V4L2_TUNER_MODE_STEREO ] = 0x80, /* auto */
447 [ V4L2_TUNER_MODE_LANG1 ] = 0x00, /* ch1 */
448 [ V4L2_TUNER_MODE_LANG2 ] = 0x01, /* ch2 */
449 [ V4L2_TUNER_MODE_LANG1_LANG2 ] = 0x80, /* auto */
453 switch (audio->mode) {
454 case TVAUDIO_FM_MONO:
455 /* nothing to do ... */
457 case TVAUDIO_FM_K_STEREO:
458 case TVAUDIO_FM_BG_STEREO:
459 case TVAUDIO_NICAM_AM:
460 case TVAUDIO_NICAM_FM:
461 audio_dbg(1, "setstereo [fm] => %s\n",
462 name[mode % ARRAY_SIZE(name)]);
463 reg = fm[ mode % ARRAY_SIZE(fm) ];
464 saa_writeb(SAA7134_FM_DEMATRIX, reg);
466 case TVAUDIO_FM_SAT_STEREO:
467 /* Not implemented */
473 static int tvaudio_thread(void *data)
475 struct saa7134_dev *dev = data;
476 int carr_vals[ARRAY_SIZE(mainscan)];
477 unsigned int i, audio, nscan;
478 int max1,max2,carrier,rx,mode,lastmode,default_carrier;
483 tvaudio_sleep(dev,-1);
484 if (kthread_should_stop())
490 dev->thread.scan1 = dev->thread.scan2;
491 audio_dbg(1, "tvaudio thread scan start [%d]\n",
495 saa_writeb(SAA7134_MONITOR_SELECT, 0xa0);
496 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
498 if (dev->ctl_automute)
501 mute_input_7134(dev);
503 /* give the tuner some time */
504 if (tvaudio_sleep(dev,SCAN_INITIAL_DELAY))
512 for (i = 0; i < ARRAY_SIZE(mainscan); i++) {
513 if (!(dev->tvnorm->id & mainscan[i].std))
515 if (!default_carrier)
516 default_carrier = mainscan[i].carr;
521 /* only one candidate -- skip scan ;) */
522 audio_dbg(1, "only one main carrier candidate - skipping scan\n");
524 carrier = default_carrier;
526 /* scan for the main carrier */
527 saa_writeb(SAA7134_MONITOR_SELECT,0x00);
528 tvaudio_setmode(dev,&tvaudio[0],NULL);
529 for (i = 0; i < ARRAY_SIZE(mainscan); i++) {
530 carr_vals[i] = tvaudio_checkcarrier(dev, mainscan+i);
531 if (dev->thread.scan1 != dev->thread.scan2)
534 for (max1 = 0, max2 = 0, i = 0; i < ARRAY_SIZE(mainscan); i++) {
535 if (max1 < carr_vals[i]) {
538 carrier = mainscan[i].carr;
539 } else if (max2 < carr_vals[i]) {
545 if (0 != carrier && max1 > 2000 && max1 > max2*3) {
546 /* found good carrier */
547 audio_dbg(1, "found %s main sound carrier @ %d.%03d MHz [%d/%d]\n",
548 dev->tvnorm->name, carrier/1000, carrier%1000,
550 dev->last_carrier = carrier;
553 } else if (0 != dev->last_carrier) {
554 /* no carrier -- try last detected one as fallback */
555 carrier = dev->last_carrier;
556 audio_dbg(1, "audio carrier scan failed, using %d.%03d MHz [last detected]\n",
557 carrier/1000, carrier%1000);
561 /* no carrier + no fallback -- use default */
562 carrier = default_carrier;
563 audio_dbg(1, "audio carrier scan failed, using %d.%03d MHz [default]\n",
564 carrier/1000, carrier%1000);
567 tvaudio_setcarrier(dev,carrier,carrier);
568 saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x00);
569 saa7134_tvaudio_setmute(dev);
570 /* find the exact tv audio norm */
571 for (audio = UNSET, i = 0; i < TVAUDIO; i++) {
572 if (dev->tvnorm->id != UNSET &&
573 !(dev->tvnorm->id & tvaudio[i].std))
575 if (tvaudio[i].carr1 != carrier)
577 /* Note: at least the primary carrier is right here */
580 tvaudio_setmode(dev,&tvaudio[i],"trying");
581 if (tvaudio_sleep(dev,SCAN_SUBCARRIER_DELAY))
583 if (-1 != tvaudio_getstereo(dev,&tvaudio[i])) {
588 saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x30);
591 tvaudio_setmode(dev,&tvaudio[audio],"using");
593 tvaudio_setstereo(dev,&tvaudio[audio],V4L2_TUNER_MODE_MONO);
594 dev->tvaudio = &tvaudio[audio];
601 if (tvaudio_sleep(dev,5000))
603 if (kthread_should_stop())
605 if (UNSET == dev->thread.mode) {
606 rx = tvaudio_getstereo(dev, &tvaudio[audio]);
607 mode = saa7134_tvaudio_rx2mode(rx);
609 mode = dev->thread.mode;
611 if (lastmode != mode) {
612 tvaudio_setstereo(dev,&tvaudio[audio],mode);
619 dev->thread.stopped = 1;
623 /* ------------------------------------------------------------------ */
624 /* saa7133 / saa7135 code */
626 static char *stdres[0x20] = {
627 [0x00] = "no standard detected",
628 [0x01] = "B/G (in progress)",
629 [0x02] = "D/K (in progress)",
630 [0x03] = "M (in progress)",
633 [0x05] = "B/G NICAM",
634 [0x06] = "D/K A2 (1)",
635 [0x07] = "D/K A2 (2)",
636 [0x08] = "D/K A2 (3)",
637 [0x09] = "D/K NICAM",
645 [0x0f] = "FM radio / IF 10.7 / 50 deemp",
646 [0x10] = "FM radio / IF 10.7 / 75 deemp",
647 [0x11] = "FM radio / IF sel / 50 deemp",
648 [0x12] = "FM radio / IF sel / 75 deemp",
650 [0x13 ... 0x1e ] = "unknown",
651 [0x1f] = "??? [in progress]",
656 #define SAA7135_DSP_RWCLEAR_RERR 1
658 static inline int saa_dsp_reset_error_bit(struct saa7134_dev *dev)
660 int state = saa_readb(SAA7135_DSP_RWSTATE);
661 if (unlikely(state & SAA7135_DSP_RWSTATE_ERR)) {
662 audio_dbg(2, "%s: resetting error bit\n", dev->name);
663 saa_writeb(SAA7135_DSP_RWCLEAR, SAA7135_DSP_RWCLEAR_RERR);
668 static inline int saa_dsp_wait_bit(struct saa7134_dev *dev, int bit)
670 int state, count = DSP_RETRY;
672 state = saa_readb(SAA7135_DSP_RWSTATE);
673 if (unlikely(state & SAA7135_DSP_RWSTATE_ERR)) {
674 pr_warn("%s: dsp access error\n", dev->name);
675 saa_dsp_reset_error_bit(dev);
678 while (0 == (state & bit)) {
679 if (unlikely(0 == count)) {
680 pr_err("dsp access wait timeout [bit=%s]\n",
681 (bit & SAA7135_DSP_RWSTATE_WRR) ? "WRR" :
682 (bit & SAA7135_DSP_RWSTATE_RDB) ? "RDB" :
683 (bit & SAA7135_DSP_RWSTATE_IDA) ? "IDA" :
688 state = saa_readb(SAA7135_DSP_RWSTATE);
695 int saa_dsp_writel(struct saa7134_dev *dev, int reg, u32 value)
699 audio_dbg(2, "dsp write reg 0x%x = 0x%06x\n",
700 (reg << 2) & 0xffffffff, value);
701 err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR);
704 saa_writel(reg,value);
705 err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR);
711 static int getstereo_7133(struct saa7134_dev *dev)
713 int retval = V4L2_TUNER_SUB_MONO;
716 value = saa_readl(0x528 >> 2);
718 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
720 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
724 static int mute_input_7133(struct saa7134_dev *dev)
729 struct saa7134_input *in;
732 switch (dev->input->amux) {
745 saa_dsp_writel(dev, 0x464 >> 2, xbarin);
751 saa_dsp_writel(dev, 0x46c >> 2, xbarout);
753 saa_writel(0x594 >> 2, reg);
756 /* switch gpio-connected external audio mux */
757 if (0 != card(dev).gpiomask) {
758 mask = card(dev).gpiomask;
760 if (card(dev).mute.name && dev->ctl_mute)
761 in = &card(dev).mute;
765 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, mask, mask);
766 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, mask, in->gpio);
767 saa7134_track_gpio(dev,in->name);
773 static int tvaudio_thread_ddep(void *data)
775 struct saa7134_dev *dev = data;
780 tvaudio_sleep(dev,-1);
781 if (kthread_should_stop())
786 dev->thread.scan1 = dev->thread.scan2;
787 audio_dbg(1, "tvaudio thread scan start [%d]\n",
790 if (audio_ddep >= 0x04 && audio_ddep <= 0x0e) {
791 /* insmod option override */
792 norms = (audio_ddep << 2) | 0x01;
793 audio_dbg(1, "ddep override: %s\n",
795 } else if (&card(dev).radio == dev->input) {
796 audio_dbg(1, "FM Radio\n");
797 if (dev->tuner_type == TUNER_PHILIPS_TDA8290) {
798 norms = (0x11 << 2) | 0x01;
799 /* set IF frequency to 5.5 MHz */
800 saa_dsp_writel(dev, 0x42c >> 2, 0x729555);
802 norms = (0x0f << 2) | 0x01;
805 /* (let chip) scan for sound carrier */
807 if (dev->tvnorm->id & (V4L2_STD_B | V4L2_STD_GH))
809 if (dev->tvnorm->id & V4L2_STD_PAL_I)
811 if (dev->tvnorm->id & V4L2_STD_DK)
813 if (dev->tvnorm->id & V4L2_STD_MN)
815 if (dev->tvnorm->id & (V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC))
818 norms = 0x7c; /* all */
819 audio_dbg(1, "scanning:%s%s%s%s%s\n",
820 (norms & 0x04) ? " B/G" : "",
821 (norms & 0x08) ? " D/K" : "",
822 (norms & 0x10) ? " L/L'" : "",
823 (norms & 0x20) ? " I" : "",
824 (norms & 0x40) ? " M" : "");
827 /* kick automatic standard detection */
828 saa_dsp_writel(dev, 0x454 >> 2, 0);
829 saa_dsp_writel(dev, 0x454 >> 2, norms | 0x80);
831 /* setup crossbars */
832 saa_dsp_writel(dev, 0x464 >> 2, 0x000000);
833 saa_dsp_writel(dev, 0x470 >> 2, 0x101010);
835 if (tvaudio_sleep(dev,3000))
837 value = saa_readl(0x528 >> 2) & 0xffffff;
839 audio_dbg(1, "tvaudio thread status: 0x%x [%s%s%s]\n",
840 value, stdres[value & 0x1f],
841 (value & 0x000020) ? ",stereo" : "",
842 (value & 0x000040) ? ",dual" : "");
843 audio_dbg(1, "detailed status: %s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s\n",
844 (value & 0x000080) ? " A2/EIAJ pilot tone " : "",
845 (value & 0x000100) ? " A2/EIAJ dual " : "",
846 (value & 0x000200) ? " A2/EIAJ stereo " : "",
847 (value & 0x000400) ? " A2/EIAJ noise mute " : "",
849 (value & 0x000800) ? " BTSC/FM radio pilot " : "",
850 (value & 0x001000) ? " SAP carrier " : "",
851 (value & 0x002000) ? " BTSC stereo noise mute " : "",
852 (value & 0x004000) ? " SAP noise mute " : "",
853 (value & 0x008000) ? " VDSP " : "",
855 (value & 0x010000) ? " NICST " : "",
856 (value & 0x020000) ? " NICDU " : "",
857 (value & 0x040000) ? " NICAM muted " : "",
858 (value & 0x080000) ? " NICAM reserve sound " : "",
860 (value & 0x100000) ? " init done " : "");
864 dev->thread.stopped = 1;
868 /* ------------------------------------------------------------------ */
869 /* common stuff + external entry points */
871 void saa7134_enable_i2s(struct saa7134_dev *dev)
875 if (!card_is_empress(dev))
878 if (dev->pci->device == PCI_DEVICE_ID_PHILIPS_SAA7130)
881 /* configure GPIO for out */
882 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, 0x0E000000, 0x00000000);
884 switch (dev->pci->device) {
885 case PCI_DEVICE_ID_PHILIPS_SAA7133:
886 case PCI_DEVICE_ID_PHILIPS_SAA7135:
887 /* Set I2S format (SONY) */
888 saa_writeb(SAA7133_I2S_AUDIO_CONTROL, 0x00);
890 saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x11);
893 case PCI_DEVICE_ID_PHILIPS_SAA7134:
894 i2s_format = (dev->input->amux == TV) ? 0x00 : 0x01;
896 /* enable I2S audio output for the mpeg encoder */
897 saa_writeb(SAA7134_I2S_OUTPUT_SELECT, 0x80);
898 saa_writeb(SAA7134_I2S_OUTPUT_FORMAT, i2s_format);
899 saa_writeb(SAA7134_I2S_OUTPUT_LEVEL, 0x0F);
900 saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x01);
907 int saa7134_tvaudio_rx2mode(u32 rx)
911 mode = V4L2_TUNER_MODE_MONO;
912 if (rx & V4L2_TUNER_SUB_STEREO)
913 mode = V4L2_TUNER_MODE_STEREO;
914 else if (rx & V4L2_TUNER_SUB_LANG1)
915 mode = V4L2_TUNER_MODE_LANG1;
916 else if (rx & V4L2_TUNER_SUB_LANG2)
917 mode = V4L2_TUNER_MODE_LANG2;
921 void saa7134_tvaudio_setmute(struct saa7134_dev *dev)
923 switch (dev->pci->device) {
924 case PCI_DEVICE_ID_PHILIPS_SAA7130:
925 case PCI_DEVICE_ID_PHILIPS_SAA7134:
926 mute_input_7134(dev);
928 case PCI_DEVICE_ID_PHILIPS_SAA7133:
929 case PCI_DEVICE_ID_PHILIPS_SAA7135:
930 mute_input_7133(dev);
935 void saa7134_tvaudio_setinput(struct saa7134_dev *dev,
936 struct saa7134_input *in)
939 switch (dev->pci->device) {
940 case PCI_DEVICE_ID_PHILIPS_SAA7130:
941 case PCI_DEVICE_ID_PHILIPS_SAA7134:
942 mute_input_7134(dev);
944 case PCI_DEVICE_ID_PHILIPS_SAA7133:
945 case PCI_DEVICE_ID_PHILIPS_SAA7135:
946 mute_input_7133(dev);
949 saa7134_enable_i2s(dev);
952 void saa7134_tvaudio_setvolume(struct saa7134_dev *dev, int level)
954 switch (dev->pci->device) {
955 case PCI_DEVICE_ID_PHILIPS_SAA7134:
956 saa_writeb(SAA7134_CHANNEL1_LEVEL, level & 0x1f);
957 saa_writeb(SAA7134_CHANNEL2_LEVEL, level & 0x1f);
958 saa_writeb(SAA7134_NICAM_LEVEL_ADJUST, level & 0x1f);
963 int saa7134_tvaudio_getstereo(struct saa7134_dev *dev)
965 int retval = V4L2_TUNER_SUB_MONO;
967 switch (dev->pci->device) {
968 case PCI_DEVICE_ID_PHILIPS_SAA7134:
970 retval = tvaudio_getstereo(dev,dev->tvaudio);
972 case PCI_DEVICE_ID_PHILIPS_SAA7133:
973 case PCI_DEVICE_ID_PHILIPS_SAA7135:
974 retval = getstereo_7133(dev);
980 void saa7134_tvaudio_init(struct saa7134_dev *dev)
982 int clock = saa7134_boards[dev->board].audio_clock;
984 if (UNSET != audio_clock_override)
985 clock = audio_clock_override;
987 switch (dev->pci->device) {
988 case PCI_DEVICE_ID_PHILIPS_SAA7134:
989 /* init all audio registers */
990 saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x00);
996 saa_writeb(SAA7134_AUDIO_CLOCK0, clock & 0xff);
997 saa_writeb(SAA7134_AUDIO_CLOCK1, (clock >> 8) & 0xff);
998 saa_writeb(SAA7134_AUDIO_CLOCK2, (clock >> 16) & 0xff);
999 /* frame locked audio is mandatory for NICAM */
1000 saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x01);
1001 saa_writeb(SAA7134_NICAM_ERROR_LOW, 0x14);
1002 saa_writeb(SAA7134_NICAM_ERROR_HIGH, 0x50);
1004 case PCI_DEVICE_ID_PHILIPS_SAA7133:
1005 case PCI_DEVICE_ID_PHILIPS_SAA7135:
1006 saa_writel(0x598 >> 2, clock);
1007 saa_dsp_writel(dev, 0x474 >> 2, 0x00);
1008 saa_dsp_writel(dev, 0x450 >> 2, 0x00);
1012 int saa7134_tvaudio_init2(struct saa7134_dev *dev)
1014 int (*my_thread)(void *data) = NULL;
1016 switch (dev->pci->device) {
1017 case PCI_DEVICE_ID_PHILIPS_SAA7134:
1018 my_thread = tvaudio_thread;
1020 case PCI_DEVICE_ID_PHILIPS_SAA7133:
1021 case PCI_DEVICE_ID_PHILIPS_SAA7135:
1022 my_thread = tvaudio_thread_ddep;
1026 dev->thread.thread = NULL;
1027 dev->thread.scan1 = dev->thread.scan2 = 0;
1029 saa7134_tvaudio_init(dev);
1030 /* start tvaudio thread */
1031 dev->thread.thread = kthread_run(my_thread, dev, "%s", dev->name);
1032 if (IS_ERR(dev->thread.thread)) {
1033 pr_warn("%s: kernel_thread() failed\n",
1035 /* XXX: missing error handling here */
1039 saa7134_enable_i2s(dev);
1043 int saa7134_tvaudio_close(struct saa7134_dev *dev)
1046 /* anything else to undo? */
1050 int saa7134_tvaudio_fini(struct saa7134_dev *dev)
1052 /* shutdown tvaudio thread */
1053 if (dev->thread.thread && !dev->thread.stopped)
1054 kthread_stop(dev->thread.thread);
1056 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, 0x00); /* LINE1 */
1060 int saa7134_tvaudio_do_scan(struct saa7134_dev *dev)
1062 if (dev->input->amux != TV) {
1063 audio_dbg(1, "sound IF not in use, skipping scan\n");
1065 saa7134_tvaudio_setmute(dev);
1066 } else if (dev->thread.thread) {
1067 dev->thread.mode = UNSET;
1068 dev->thread.scan2++;
1070 if (!dev->insuspend && !dev->thread.stopped)
1071 wake_up_process(dev->thread.thread);
1074 saa7134_tvaudio_setmute(dev);
1079 EXPORT_SYMBOL(saa_dsp_writel);
1080 EXPORT_SYMBOL(saa7134_tvaudio_setmute);