2 * device driver for philips saa7134 based TV cards
3 * tv audio decoder (fm stereo, nicam, ...)
5 * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include <linux/init.h>
23 #include <linux/list.h>
24 #include <linux/module.h>
25 #include <linux/kernel.h>
26 #include <linux/slab.h>
27 #include <linux/delay.h>
28 #include <linux/smp_lock.h>
29 #include <asm/div64.h>
31 #include "saa7134-reg.h"
34 /* ------------------------------------------------------------------ */
36 static unsigned int audio_debug = 0;
37 MODULE_PARM(audio_debug,"i");
38 MODULE_PARM_DESC(audio_debug,"enable debug messages [tv audio]");
40 static unsigned int audio_ddep = 0;
41 MODULE_PARM(audio_ddep,"i");
42 MODULE_PARM_DESC(audio_ddep,"audio ddep overwrite");
44 static int audio_clock_override = UNSET;
45 MODULE_PARM(audio_clock_override, "i");
47 static int audio_clock_tweak = 0;
48 MODULE_PARM(audio_clock_tweak, "i");
49 MODULE_PARM_DESC(audio_clock_tweak, "Audio clock tick fine tuning for cards with audio crystal that's slightly off (range [-1024 .. 1024])");
51 #define dprintk(fmt, arg...) if (audio_debug) \
52 printk(KERN_DEBUG "%s/audio: " fmt, dev->name , ## arg)
53 #define d2printk(fmt, arg...) if (audio_debug > 1) \
54 printk(KERN_DEBUG "%s/audio: " fmt, dev->name, ## arg)
56 #define print_regb(reg) printk("%s: reg 0x%03x [%-16s]: 0x%02x\n", \
57 dev->name,(SAA7134_##reg),(#reg),saa_readb((SAA7134_##reg)))
59 #define SCAN_INITIAL_DELAY (HZ)
60 #define SCAN_SAMPLE_DELAY (HZ/5)
61 #define SCAN_SUBCARRIER_DELAY (HZ*2)
63 /* ------------------------------------------------------------------ */
66 static struct mainscan {
73 .std = V4L2_STD_NTSC | V4L2_STD_PAL_M,
77 .std = V4L2_STD_PAL_BG,
81 .std = V4L2_STD_PAL_I,
85 .std = V4L2_STD_PAL_DK | V4L2_STD_SECAM,
90 static struct saa7134_tvaudio tvaudio[] = {
92 .name = "PAL-B/G FM-stereo",
94 .mode = TVAUDIO_FM_BG_STEREO,
98 .name = "PAL-D/K1 FM-stereo",
102 .mode = TVAUDIO_FM_BG_STEREO,
104 .name = "PAL-D/K2 FM-stereo",
108 .mode = TVAUDIO_FM_BG_STEREO,
110 .name = "PAL-D/K3 FM-stereo",
114 .mode = TVAUDIO_FM_BG_STEREO,
116 .name = "PAL-B/G NICAM",
120 .mode = TVAUDIO_NICAM_FM,
122 .name = "PAL-I NICAM",
126 .mode = TVAUDIO_NICAM_FM,
128 .name = "PAL-D/K NICAM",
132 .mode = TVAUDIO_NICAM_FM,
134 .name = "SECAM-L NICAM",
135 .std = V4L2_STD_SECAM,
138 .mode = TVAUDIO_NICAM_AM,
141 .std = V4L2_STD_SECAM,
144 .mode = TVAUDIO_FM_MONO,
147 .std = V4L2_STD_NTSC,
150 .mode = TVAUDIO_FM_MONO,
152 .name = "NTSC-A2 FM-stereo",
153 .std = V4L2_STD_NTSC,
156 .mode = TVAUDIO_FM_K_STEREO,
159 #define TVAUDIO (sizeof(tvaudio)/sizeof(struct saa7134_tvaudio))
161 /* ------------------------------------------------------------------ */
163 static void tvaudio_init(struct saa7134_dev *dev)
165 int clock = saa7134_boards[dev->board].audio_clock;
167 if (UNSET != audio_clock_override)
168 clock = audio_clock_override;
170 /* init all audio registers */
171 saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x00);
177 saa_writeb(SAA7134_AUDIO_CLOCK0, clock & 0xff);
178 saa_writeb(SAA7134_AUDIO_CLOCK1, (clock >> 8) & 0xff);
179 saa_writeb(SAA7134_AUDIO_CLOCK2, (clock >> 16) & 0xff);
180 saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x01);
182 saa_writeb(SAA7134_NICAM_ERROR_LOW, 0x14);
183 saa_writeb(SAA7134_NICAM_ERROR_HIGH, 0x50);
184 saa_writeb(SAA7134_MONITOR_SELECT, 0xa0);
185 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
188 static u32 tvaudio_carr2reg(u32 carrier)
197 static void tvaudio_setcarrier(struct saa7134_dev *dev,
198 int primary, int secondary)
202 saa_writel(SAA7134_CARRIER1_FREQ0 >> 2, tvaudio_carr2reg(primary));
203 saa_writel(SAA7134_CARRIER2_FREQ0 >> 2, tvaudio_carr2reg(secondary));
206 static void mute_input_7134(struct saa7134_dev *dev)
209 struct saa7134_input *in;
210 int ausel=0, ics=0, ocs=0;
213 /* look what is to do ... */
215 mute = (dev->ctl_mute ||
216 (dev->automute && (&card(dev).radio) != in));
217 if (PCI_DEVICE_ID_PHILIPS_SAA7130 == dev->pci->device &&
218 card(dev).mute.name) {
219 /* 7130 - we'll mute using some unconnected audio input */
221 in = &card(dev).mute;
223 if (dev->hw_mute == mute &&
224 dev->hw_input == in) {
225 dprintk("mute/input: nothing to do [mute=%d,input=%s]\n",
230 dprintk("ctl_mute=%d automute=%d input=%s => mute=%d input=%s\n",
231 dev->ctl_mute,dev->automute,dev->input->name,mute,in->name);
235 if (PCI_DEVICE_ID_PHILIPS_SAA7134 == dev->pci->device)
237 saa_writeb(SAA7134_AUDIO_MUTE_CTRL, mute ? 0xff : 0xbb);
239 /* switch internal audio mux */
241 case TV: ausel=0xc0; ics=0x00; ocs=0x02; break;
242 case LINE1: ausel=0x80; ics=0x00; ocs=0x00; break;
243 case LINE2: ausel=0x80; ics=0x08; ocs=0x01; break;
245 saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, ausel);
246 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x08, ics);
247 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, ocs);
249 /* switch gpio-connected external audio mux */
250 if (0 == card(dev).gpiomask)
252 mask = card(dev).gpiomask;
253 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, mask, mask);
254 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, mask, in->gpio);
255 saa7134_track_gpio(dev,in->name);
258 static void tvaudio_setmode(struct saa7134_dev *dev,
259 struct saa7134_tvaudio *audio,
264 if (dev->tvnorm->id == V4L2_STD_NTSC) {
269 if (audio_clock_tweak > -1024 && audio_clock_tweak < 1024)
270 tweak = audio_clock_tweak;
273 dprintk("tvaudio_setmode: %s %s [%d.%03d/%d.%03d MHz] acpf=%d%+d\n",
275 audio->carr1 / 1000, audio->carr1 % 1000,
276 audio->carr2 / 1000, audio->carr2 % 1000,
280 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD0, (acpf & 0x0000ff) >> 0);
281 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD1, (acpf & 0x00ff00) >> 8);
282 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD2, (acpf & 0x030000) >> 16);
283 tvaudio_setcarrier(dev,audio->carr1,audio->carr2);
285 switch (audio->mode) {
286 case TVAUDIO_FM_MONO:
287 case TVAUDIO_FM_BG_STEREO:
288 saa_writeb(SAA7134_DEMODULATOR, 0x00);
289 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
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_FM_K_STEREO:
295 saa_writeb(SAA7134_DEMODULATOR, 0x00);
296 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x01);
297 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x22);
298 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
299 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa0);
301 case TVAUDIO_NICAM_FM:
302 saa_writeb(SAA7134_DEMODULATOR, 0x10);
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_NICAM_AM:
309 saa_writeb(SAA7134_DEMODULATOR, 0x12);
310 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
311 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x44);
312 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa1);
313 saa_writeb(SAA7134_NICAM_CONFIG, 0x00);
315 case TVAUDIO_FM_SAT_STEREO:
316 /* not implemented (yet) */
321 static int tvaudio_sleep(struct saa7134_dev *dev, int timeout)
323 DECLARE_WAITQUEUE(wait, current);
325 add_wait_queue(&dev->thread.wq, &wait);
326 if (dev->thread.scan1 == dev->thread.scan2 && !dev->thread.shutdown) {
327 set_current_state(TASK_INTERRUPTIBLE);
331 schedule_timeout(timeout);
333 remove_wait_queue(&dev->thread.wq, &wait);
334 return dev->thread.scan1 != dev->thread.scan2;
337 static int tvaudio_checkcarrier(struct saa7134_dev *dev, struct mainscan *scan)
339 __s32 left,right,value;
341 if (audio_debug > 1) {
343 dprintk("debug %d:",scan->carr);
344 for (i = -150; i <= 150; i += 30) {
345 tvaudio_setcarrier(dev,scan->carr+i,scan->carr+i);
346 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
347 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
349 value = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
351 printk(" # %6d # ",value >> 16);
353 printk(" %6d",value >> 16);
358 if (dev->tvnorm->id & scan->std) {
359 tvaudio_setcarrier(dev,scan->carr-90,scan->carr-90);
360 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
361 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
363 left = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
365 tvaudio_setcarrier(dev,scan->carr+90,scan->carr+90);
366 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
367 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
369 right = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
373 value = left > right ? left - right : right - left;
374 dprintk("scanning %d.%03d MHz [%4s] => dc is %5d [%d/%d]\n",
375 scan->carr / 1000, scan->carr % 1000,
376 scan->name, value, left, right);
379 dprintk("skipping %d.%03d MHz [%4s]\n",
380 scan->carr / 1000, scan->carr % 1000, scan->name);
386 static void sifdebug_dump_regs(struct saa7134_dev *dev)
388 print_regb(AUDIO_STATUS);
389 print_regb(IDENT_SIF);
390 print_regb(LEVEL_READOUT1);
391 print_regb(LEVEL_READOUT2);
392 print_regb(DCXO_IDENT_CTRL);
393 print_regb(DEMODULATOR);
394 print_regb(AGC_GAIN_SELECT);
395 print_regb(MONITOR_SELECT);
396 print_regb(FM_DEEMPHASIS);
397 print_regb(FM_DEMATRIX);
398 print_regb(SIF_SAMPLE_FREQ);
399 print_regb(ANALOG_IO_SELECT);
403 static int tvaudio_getstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio)
408 switch (audio->mode) {
409 case TVAUDIO_FM_MONO:
410 return V4L2_TUNER_SUB_MONO;
411 case TVAUDIO_FM_K_STEREO:
412 case TVAUDIO_FM_BG_STEREO:
413 idp = (saa_readb(SAA7134_IDENT_SIF) & 0xe0) >> 5;
414 dprintk("getstereo: fm/stereo: idp=0x%x\n",idp);
415 if (0x03 == (idp & 0x03))
416 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
417 else if (0x05 == (idp & 0x05))
418 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
419 else if (0x01 == (idp & 0x01))
420 retval = V4L2_TUNER_SUB_MONO;
422 case TVAUDIO_FM_SAT_STEREO:
423 /* not implemented (yet) */
425 case TVAUDIO_NICAM_FM:
426 case TVAUDIO_NICAM_AM:
427 nicam = saa_readb(SAA7134_NICAM_STATUS);
428 dprintk("getstereo: nicam=0x%x\n",nicam);
429 switch (nicam & 0x0b) {
431 retval = V4L2_TUNER_SUB_MONO;
434 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
437 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
443 dprintk("found audio subchannels:%s%s%s%s\n",
444 (retval & V4L2_TUNER_SUB_MONO) ? " mono" : "",
445 (retval & V4L2_TUNER_SUB_STEREO) ? " stereo" : "",
446 (retval & V4L2_TUNER_SUB_LANG1) ? " lang1" : "",
447 (retval & V4L2_TUNER_SUB_LANG2) ? " lang2" : "");
451 static int tvaudio_setstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio,
454 static char *name[] = {
455 [ V4L2_TUNER_MODE_MONO ] = "mono",
456 [ V4L2_TUNER_MODE_STEREO ] = "stereo",
457 [ V4L2_TUNER_MODE_LANG1 ] = "lang1",
458 [ V4L2_TUNER_MODE_LANG2 ] = "lang2",
461 [ V4L2_TUNER_MODE_MONO ] = 0x00, /* ch1 */
462 [ V4L2_TUNER_MODE_STEREO ] = 0x80, /* auto */
463 [ V4L2_TUNER_MODE_LANG1 ] = 0x00, /* ch1 */
464 [ V4L2_TUNER_MODE_LANG2 ] = 0x01, /* ch2 */
468 switch (audio->mode) {
469 case TVAUDIO_FM_MONO:
470 /* nothing to do ... */
472 case TVAUDIO_FM_K_STEREO:
473 case TVAUDIO_FM_BG_STEREO:
474 dprintk("setstereo [fm] => %s\n",
475 name[ mode % ARRAY_SIZE(name) ]);
476 reg = fm[ mode % ARRAY_SIZE(fm) ];
477 saa_writeb(SAA7134_FM_DEMATRIX, reg);
479 case TVAUDIO_FM_SAT_STEREO:
480 case TVAUDIO_NICAM_AM:
481 case TVAUDIO_NICAM_FM:
488 static int tvaudio_thread(void *data)
490 struct saa7134_dev *dev = data;
491 int carr_vals[ARRAY_SIZE(mainscan)];
492 unsigned int i, audio, nscan;
493 int max1,max2,carrier,rx,mode,lastmode,default_carrier;
495 daemonize("%s", dev->name);
496 allow_signal(SIGTERM);
498 tvaudio_sleep(dev,-1);
499 if (dev->thread.shutdown || signal_pending(current))
503 dev->thread.scan1 = dev->thread.scan2;
504 dprintk("tvaudio thread scan start [%d]\n",dev->thread.scan1);
508 mute_input_7134(dev);
510 /* give the tuner some time */
511 if (tvaudio_sleep(dev,SCAN_INITIAL_DELAY))
519 for (i = 0; i < ARRAY_SIZE(mainscan); i++) {
520 if (!(dev->tvnorm->id & mainscan[i].std))
522 if (!default_carrier)
523 default_carrier = mainscan[i].carr;
528 /* only one candidate -- skip scan ;) */
530 carrier = default_carrier;
532 /* scan for the main carrier */
533 saa_writeb(SAA7134_MONITOR_SELECT,0x00);
534 tvaudio_setmode(dev,&tvaudio[0],NULL);
535 for (i = 0; i < ARRAY_SIZE(mainscan); i++) {
536 carr_vals[i] = tvaudio_checkcarrier(dev, mainscan+i);
537 if (dev->thread.scan1 != dev->thread.scan2)
540 for (max1 = 0, max2 = 0, i = 0; i < ARRAY_SIZE(mainscan); i++) {
541 if (max1 < carr_vals[i]) {
544 carrier = mainscan[i].carr;
545 } else if (max2 < carr_vals[i]) {
551 if (0 != carrier && max1 > 2000 && max1 > max2*3) {
552 /* found good carrier */
553 dprintk("found %s main sound carrier @ %d.%03d MHz [%d/%d]\n",
554 dev->tvnorm->name, carrier/1000, carrier%1000,
556 dev->last_carrier = carrier;
558 } else if (0 != dev->last_carrier) {
559 /* no carrier -- try last detected one as fallback */
560 carrier = dev->last_carrier;
561 printk(KERN_WARNING "%s/audio: audio carrier scan failed, "
562 "using %d.%03d MHz [last detected]\n",
563 dev->name, carrier/1000, carrier%1000);
566 /* no carrier + no fallback -- use default */
567 carrier = default_carrier;
568 printk(KERN_WARNING "%s/audio: audio carrier scan failed, "
569 "using %d.%03d MHz [default]\n",
570 dev->name, carrier/1000, carrier%1000);
572 tvaudio_setcarrier(dev,carrier,carrier);
574 saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x00);
575 saa7134_tvaudio_setmute(dev);
577 /* find the exact tv audio norm */
578 for (audio = UNSET, i = 0; i < TVAUDIO; i++) {
579 if (dev->tvnorm->id != UNSET &&
580 !(dev->tvnorm->id & tvaudio[i].std))
582 if (tvaudio[i].carr1 != carrier)
587 tvaudio_setmode(dev,&tvaudio[i],"trying");
588 if (tvaudio_sleep(dev,SCAN_SUBCARRIER_DELAY))
590 if (-1 != tvaudio_getstereo(dev,&tvaudio[i])) {
595 saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x30);
598 tvaudio_setmode(dev,&tvaudio[audio],"using");
599 tvaudio_setstereo(dev,&tvaudio[audio],V4L2_TUNER_MODE_MONO);
600 dev->tvaudio = &tvaudio[audio];
604 if (tvaudio_sleep(dev,5*HZ))
606 if (dev->thread.shutdown || signal_pending(current))
608 if (UNSET == dev->thread.mode) {
609 rx = tvaudio_getstereo(dev,&tvaudio[i]);
610 mode = saa7134_tvaudio_rx2mode(rx);
612 mode = dev->thread.mode;
614 if (lastmode != mode) {
615 tvaudio_setstereo(dev,&tvaudio[audio],mode);
622 complete_and_exit(&dev->thread.exit, 0);
626 /* ------------------------------------------------------------------ */
627 /* saa7133 / saa7135 code */
629 static char *stdres[0x20] = {
630 [0x00] = "no standard detected",
631 [0x01] = "B/G (in progress)",
632 [0x02] = "D/K (in progress)",
633 [0x03] = "M (in progress)",
636 [0x05] = "B/G NICAM",
637 [0x06] = "D/K A2 (1)",
638 [0x07] = "D/K A2 (2)",
639 [0x08] = "D/K A2 (3)",
640 [0x09] = "D/K NICAM",
648 [0x0f] = "FM radio / IF 10.7 / 50 deemp",
649 [0x10] = "FM radio / IF 10.7 / 75 deemp",
650 [0x11] = "FM radio / IF sel / 50 deemp",
651 [0x12] = "FM radio / IF sel / 75 deemp",
653 [0x13 ... 0x1e ] = "unknown",
654 [0x1f] = "??? [in progress]",
660 static inline int saa_dsp_wait_bit(struct saa7134_dev *dev, int bit)
662 int state, count = DSP_RETRY;
664 state = saa_readb(SAA7135_DSP_RWSTATE);
665 if (unlikely(state & SAA7135_DSP_RWSTATE_ERR)) {
666 printk("%s: dsp access error\n",dev->name);
667 /* FIXME: send ack ... */
670 while (0 == (state & bit)) {
671 if (unlikely(0 == count)) {
672 printk("%s: dsp access wait timeout [bit=%s]\n",
674 (bit & SAA7135_DSP_RWSTATE_WRR) ? "WRR" :
675 (bit & SAA7135_DSP_RWSTATE_RDB) ? "RDB" :
676 (bit & SAA7135_DSP_RWSTATE_IDA) ? "IDA" :
681 state = saa_readb(SAA7135_DSP_RWSTATE);
688 static int saa_dsp_readl(struct saa7134_dev *dev, int reg, u32 *value)
692 d2printk("dsp read reg 0x%x\n", reg<<2);
694 err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_RDB);
697 *value = saa_readl(reg);
698 d2printk("dsp read => 0x%06x\n", *value & 0xffffff);
699 err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_IDA);
706 int saa_dsp_writel(struct saa7134_dev *dev, int reg, u32 value)
710 d2printk("dsp write reg 0x%x = 0x%06x\n",reg<<2,value);
711 err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR);
714 saa_writel(reg,value);
715 err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR);
721 static int getstereo_7133(struct saa7134_dev *dev)
723 int retval = V4L2_TUNER_SUB_MONO;
726 value = saa_readl(0x528 >> 2);
728 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
730 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
734 static int mute_input_7133(struct saa7134_dev *dev)
738 switch (dev->input->amux) {
739 case TV: reg = 0x02; break;
740 case LINE1: reg = 0x00; break;
741 case LINE2: reg = 0x01; break;
745 saa_writel(0x594 >> 2, reg);
749 static int tvaudio_thread_ddep(void *data)
751 struct saa7134_dev *dev = data;
752 u32 value, norms, clock;
754 daemonize("%s", dev->name);
755 allow_signal(SIGTERM);
757 clock = saa7134_boards[dev->board].audio_clock;
758 if (UNSET != audio_clock_override)
759 clock = audio_clock_override;
760 saa_writel(0x598 >> 2, clock);
763 saa_dsp_writel(dev, 0x474 >> 2, 0x00);
764 saa_dsp_writel(dev, 0x450 >> 2, 0x00);
767 tvaudio_sleep(dev,-1);
768 if (dev->thread.shutdown || signal_pending(current))
772 dev->thread.scan1 = dev->thread.scan2;
773 dprintk("tvaudio thread scan start [%d]\n",dev->thread.scan1);
775 if (audio_ddep >= 0x04 && audio_ddep <= 0x0e) {
776 /* insmod option override */
777 norms = (audio_ddep << 2) | 0x01;
778 dprintk("ddep override: %s\n",stdres[audio_ddep]);
780 /* (let chip) scan for sound carrier */
782 if (dev->tvnorm->id & V4L2_STD_PAL) {
783 dprintk("PAL scan\n");
784 norms |= 0x2c; /* B/G + D/K + I */
786 if (dev->tvnorm->id & V4L2_STD_NTSC) {
787 dprintk("NTSC scan\n");
788 norms |= 0x40; /* M */
790 if (dev->tvnorm->id & V4L2_STD_SECAM) {
791 dprintk("SECAM scan\n");
792 norms |= 0x18; /* L + D/K */
795 norms = 0x7c; /* all */
796 dprintk("scanning:%s%s%s%s%s\n",
797 (norms & 0x04) ? " B/G" : "",
798 (norms & 0x08) ? " D/K" : "",
799 (norms & 0x10) ? " L/L'" : "",
800 (norms & 0x20) ? " I" : "",
801 (norms & 0x40) ? " M" : "");
804 /* kick automatic standard detection */
805 saa_dsp_writel(dev, 0x454 >> 2, 0);
806 saa_dsp_writel(dev, 0x454 >> 2, norms | 0x80);
808 /* setup crossbars */
809 saa_dsp_writel(dev, 0x464 >> 2, 0x000000);
810 saa_dsp_writel(dev, 0x470 >> 2, 0x101010);
812 if (tvaudio_sleep(dev,3*HZ))
814 value = saa_readl(0x528 >> 2) & 0xffffff;
816 dprintk("tvaudio thread status: 0x%x [%s%s%s]\n",
817 value, stdres[value & 0x1f],
818 (value & 0x000020) ? ",stereo" : "",
819 (value & 0x000040) ? ",dual" : "");
820 dprintk("detailed status: "
821 "%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s\n",
822 (value & 0x000080) ? " A2/EIAJ pilot tone " : "",
823 (value & 0x000100) ? " A2/EIAJ dual " : "",
824 (value & 0x000200) ? " A2/EIAJ stereo " : "",
825 (value & 0x000400) ? " A2/EIAJ noise mute " : "",
827 (value & 0x000800) ? " BTSC/FM radio pilot " : "",
828 (value & 0x001000) ? " SAP carrier " : "",
829 (value & 0x002000) ? " BTSC stereo noise mute " : "",
830 (value & 0x004000) ? " SAP noise mute " : "",
831 (value & 0x008000) ? " VDSP " : "",
833 (value & 0x010000) ? " NICST " : "",
834 (value & 0x020000) ? " NICDU " : "",
835 (value & 0x040000) ? " NICAM muted " : "",
836 (value & 0x080000) ? " NICAM reserve sound " : "",
838 (value & 0x100000) ? " init done " : "");
842 complete_and_exit(&dev->thread.exit, 0);
846 /* ------------------------------------------------------------------ */
847 /* common stuff + external entry points */
849 int saa7134_tvaudio_rx2mode(u32 rx)
853 mode = V4L2_TUNER_MODE_MONO;
854 if (rx & V4L2_TUNER_SUB_STEREO)
855 mode = V4L2_TUNER_MODE_STEREO;
856 else if (rx & V4L2_TUNER_SUB_LANG1)
857 mode = V4L2_TUNER_MODE_LANG1;
858 else if (rx & V4L2_TUNER_SUB_LANG2)
859 mode = V4L2_TUNER_MODE_LANG2;
863 void saa7134_tvaudio_setmute(struct saa7134_dev *dev)
865 switch (dev->pci->device) {
866 case PCI_DEVICE_ID_PHILIPS_SAA7130:
867 case PCI_DEVICE_ID_PHILIPS_SAA7134:
868 mute_input_7134(dev);
870 case PCI_DEVICE_ID_PHILIPS_SAA7133:
871 case PCI_DEVICE_ID_PHILIPS_SAA7135:
872 mute_input_7133(dev);
877 void saa7134_tvaudio_setinput(struct saa7134_dev *dev,
878 struct saa7134_input *in)
881 switch (dev->pci->device) {
882 case PCI_DEVICE_ID_PHILIPS_SAA7130:
883 case PCI_DEVICE_ID_PHILIPS_SAA7134:
884 mute_input_7134(dev);
886 case PCI_DEVICE_ID_PHILIPS_SAA7133:
887 case PCI_DEVICE_ID_PHILIPS_SAA7135:
888 mute_input_7133(dev);
893 void saa7134_tvaudio_setvolume(struct saa7134_dev *dev, int level)
895 switch (dev->pci->device) {
896 case PCI_DEVICE_ID_PHILIPS_SAA7134:
897 saa_writeb(SAA7134_CHANNEL1_LEVEL, level & 0x1f);
898 saa_writeb(SAA7134_CHANNEL2_LEVEL, level & 0x1f);
899 saa_writeb(SAA7134_NICAM_LEVEL_ADJUST, level & 0x1f);
904 int saa7134_tvaudio_getstereo(struct saa7134_dev *dev)
906 int retval = V4L2_TUNER_SUB_MONO;
908 switch (dev->pci->device) {
909 case PCI_DEVICE_ID_PHILIPS_SAA7134:
911 retval = tvaudio_getstereo(dev,dev->tvaudio);
913 case PCI_DEVICE_ID_PHILIPS_SAA7133:
914 case PCI_DEVICE_ID_PHILIPS_SAA7135:
915 retval = getstereo_7133(dev);
921 int saa7134_tvaudio_init2(struct saa7134_dev *dev)
923 DECLARE_MUTEX_LOCKED(sem);
924 int (*my_thread)(void *data) = NULL;
926 /* enable I2S audio output */
927 if (saa7134_boards[dev->board].i2s_rate) {
928 int i2sform = (32000 == saa7134_boards[dev->board].i2s_rate) ? 0x00 : 0x01;
930 /* enable I2S output */
931 saa_writeb(SAA7134_I2S_OUTPUT_SELECT, 0x80);
932 saa_writeb(SAA7134_I2S_OUTPUT_FORMAT, i2sform);
933 saa_writeb(SAA7134_I2S_OUTPUT_LEVEL, 0x0F);
934 saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x01);
937 switch (dev->pci->device) {
938 case PCI_DEVICE_ID_PHILIPS_SAA7134:
939 my_thread = tvaudio_thread;
941 case PCI_DEVICE_ID_PHILIPS_SAA7133:
942 case PCI_DEVICE_ID_PHILIPS_SAA7135:
943 my_thread = tvaudio_thread_ddep;
947 dev->thread.pid = -1;
949 /* start tvaudio thread */
950 init_waitqueue_head(&dev->thread.wq);
951 init_completion(&dev->thread.exit);
952 dev->thread.pid = kernel_thread(my_thread,dev,0);
953 if (dev->thread.pid < 0)
954 printk(KERN_WARNING "%s: kernel_thread() failed\n",
956 wake_up_interruptible(&dev->thread.wq);
962 int saa7134_tvaudio_fini(struct saa7134_dev *dev)
964 /* shutdown tvaudio thread */
965 if (dev->thread.pid >= 0) {
966 dev->thread.shutdown = 1;
967 wake_up_interruptible(&dev->thread.wq);
968 wait_for_completion(&dev->thread.exit);
970 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, 0x00); /* LINE1 */
974 int saa7134_tvaudio_do_scan(struct saa7134_dev *dev)
976 if (dev->thread.pid >= 0) {
977 dev->thread.mode = UNSET;
979 wake_up_interruptible(&dev->thread.wq);
982 saa7134_tvaudio_setmute(dev);
987 /* ----------------------------------------------------------- */