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.
20 #include "saa7134-reg.h"
22 #include <linux/init.h>
23 #include <linux/list.h>
24 #include <linux/module.h>
25 #include <linux/kernel.h>
26 #include <linux/kthread.h>
27 #include <linux/delay.h>
28 #include <linux/freezer.h>
29 #include <asm/div64.h>
31 /* ------------------------------------------------------------------ */
33 static unsigned int audio_debug;
34 module_param(audio_debug, int, 0644);
35 MODULE_PARM_DESC(audio_debug,"enable debug messages [tv audio]");
37 static unsigned int audio_ddep;
38 module_param(audio_ddep, int, 0644);
39 MODULE_PARM_DESC(audio_ddep,"audio ddep overwrite");
41 static int audio_clock_override = UNSET;
42 module_param(audio_clock_override, int, 0644);
44 static int audio_clock_tweak;
45 module_param(audio_clock_tweak, int, 0644);
46 MODULE_PARM_DESC(audio_clock_tweak, "Audio clock tick fine tuning for cards with audio crystal that's slightly off (range [-1024 .. 1024])");
48 #define audio_dbg(level, fmt, arg...) do { \
49 if (audio_debug >= level) \
50 printk(KERN_DEBUG pr_fmt("audio: " fmt), ## arg); \
54 #define SCAN_INITIAL_DELAY 1000
55 #define SCAN_SAMPLE_DELAY 200
56 #define SCAN_SUBCARRIER_DELAY 2000
58 /* ------------------------------------------------------------------ */
61 static struct mainscan {
72 .std = V4L2_STD_B | V4L2_STD_GH,
76 .std = V4L2_STD_PAL_I,
80 .std = V4L2_STD_DK | V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC,
85 static struct saa7134_tvaudio tvaudio[] = {
87 .name = "PAL-B/G FM-stereo",
88 .std = V4L2_STD_PAL_BG,
89 .mode = TVAUDIO_FM_BG_STEREO,
93 .name = "PAL-D/K1 FM-stereo",
94 .std = V4L2_STD_PAL_DK,
97 .mode = TVAUDIO_FM_BG_STEREO,
99 .name = "PAL-D/K2 FM-stereo",
100 .std = V4L2_STD_PAL_DK,
103 .mode = TVAUDIO_FM_BG_STEREO,
105 .name = "PAL-D/K3 FM-stereo",
106 .std = V4L2_STD_PAL_DK,
109 .mode = TVAUDIO_FM_BG_STEREO,
111 .name = "PAL-B/G NICAM",
112 .std = V4L2_STD_PAL_BG,
115 .mode = TVAUDIO_NICAM_FM,
117 .name = "PAL-I NICAM",
118 .std = V4L2_STD_PAL_I,
121 .mode = TVAUDIO_NICAM_FM,
123 .name = "PAL-D/K NICAM",
124 .std = V4L2_STD_PAL_DK,
127 .mode = TVAUDIO_NICAM_FM,
129 .name = "SECAM-L NICAM",
130 .std = V4L2_STD_SECAM_L,
133 .mode = TVAUDIO_NICAM_AM,
135 .name = "SECAM-D/K NICAM",
136 .std = V4L2_STD_SECAM_DK,
139 .mode = TVAUDIO_NICAM_FM,
141 .name = "NTSC-A2 FM-stereo",
142 .std = V4L2_STD_NTSC,
145 .mode = TVAUDIO_FM_K_STEREO,
148 .std = V4L2_STD_NTSC,
151 .mode = TVAUDIO_FM_MONO,
154 #define TVAUDIO ARRAY_SIZE(tvaudio)
156 /* ------------------------------------------------------------------ */
158 static u32 tvaudio_carr2reg(u32 carrier)
167 static void tvaudio_setcarrier(struct saa7134_dev *dev,
168 int primary, int secondary)
172 saa_writel(SAA7134_CARRIER1_FREQ0 >> 2, tvaudio_carr2reg(primary));
173 saa_writel(SAA7134_CARRIER2_FREQ0 >> 2, tvaudio_carr2reg(secondary));
176 #define SAA7134_MUTE_MASK 0xbb
177 #define SAA7134_MUTE_ANALOG 0x04
178 #define SAA7134_MUTE_I2S 0x40
180 static void mute_input_7134(struct saa7134_dev *dev)
183 struct saa7134_input *in;
184 int ausel=0, ics=0, ocs=0;
187 /* look what is to do ... */
189 mute = (dev->ctl_mute ||
190 (dev->automute && (&card(dev).radio) != in));
191 if (card(dev).mute.type) {
193 * 7130 - we'll mute using some unconnected audio input
194 * 7134 - we'll probably should switch external mux with gpio
197 in = &card(dev).mute;
200 if (dev->hw_mute == mute &&
201 dev->hw_input == in && !dev->insuspend) {
202 audio_dbg(1, "mute/input: nothing to do [mute=%d,input=%s]\n",
203 mute, saa7134_input_name[in->type]);
207 audio_dbg(1, "ctl_mute=%d automute=%d input=%s => mute=%d input=%s\n",
208 dev->ctl_mute, dev->automute,
209 saa7134_input_name[dev->input->type], mute,
210 saa7134_input_name[in->type]);
214 if (PCI_DEVICE_ID_PHILIPS_SAA7134 == dev->pci->device)
216 saa_writeb(SAA7134_AUDIO_MUTE_CTRL, mute ?
218 SAA7134_MUTE_ANALOG |
222 /* switch internal audio mux */
224 case TV: ausel=0xc0; ics=0x00; ocs=0x02; break;
225 case LINE1: ausel=0x80; ics=0x00; ocs=0x00; break;
226 case LINE2: ausel=0x80; ics=0x08; ocs=0x01; break;
227 case LINE2_LEFT: ausel=0x80; ics=0x08; ocs=0x05; break;
229 saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, ausel);
230 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x08, ics);
231 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, ocs);
232 // for oss, we need to change the clock configuration
234 saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x00);
236 saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x01);
238 /* switch gpio-connected external audio mux */
239 if (0 == card(dev).gpiomask)
242 mask = card(dev).gpiomask;
243 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, mask, mask);
244 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, mask, in->gpio);
245 saa7134_track_gpio(dev, saa7134_input_name[in->type]);
248 static void tvaudio_setmode(struct saa7134_dev *dev,
249 struct saa7134_tvaudio *audio,
254 if (dev->tvnorm->id == V4L2_STD_NTSC) {
259 if (audio_clock_tweak > -1024 && audio_clock_tweak < 1024)
260 tweak = audio_clock_tweak;
263 audio_dbg(1, "tvaudio_setmode: %s %s [%d.%03d/%d.%03d MHz] acpf=%d%+d\n",
265 audio->carr1 / 1000, audio->carr1 % 1000,
266 audio->carr2 / 1000, audio->carr2 % 1000,
270 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD0, (acpf & 0x0000ff) >> 0);
271 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD1, (acpf & 0x00ff00) >> 8);
272 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD2, (acpf & 0x030000) >> 16);
273 tvaudio_setcarrier(dev,audio->carr1,audio->carr2);
275 switch (audio->mode) {
276 case TVAUDIO_FM_MONO:
277 case TVAUDIO_FM_BG_STEREO:
278 saa_writeb(SAA7134_DEMODULATOR, 0x00);
279 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
280 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x22);
281 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
282 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa0);
284 case TVAUDIO_FM_K_STEREO:
285 saa_writeb(SAA7134_DEMODULATOR, 0x00);
286 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x01);
287 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x22);
288 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
289 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa0);
291 case TVAUDIO_NICAM_FM:
292 saa_writeb(SAA7134_DEMODULATOR, 0x10);
293 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
294 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x44);
295 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa1);
296 saa_writeb(SAA7134_NICAM_CONFIG, 0x00);
298 case TVAUDIO_NICAM_AM:
299 saa_writeb(SAA7134_DEMODULATOR, 0x12);
300 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
301 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x44);
302 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa1);
303 saa_writeb(SAA7134_NICAM_CONFIG, 0x00);
305 case TVAUDIO_FM_SAT_STEREO:
306 /* not implemented (yet) */
311 static int tvaudio_sleep(struct saa7134_dev *dev, int timeout)
313 if (dev->thread.scan1 == dev->thread.scan2 &&
314 !kthread_should_stop()) {
316 set_current_state(TASK_INTERRUPTIBLE);
319 schedule_timeout_interruptible
320 (msecs_to_jiffies(timeout));
323 return dev->thread.scan1 != dev->thread.scan2;
326 static int tvaudio_checkcarrier(struct saa7134_dev *dev, struct mainscan *scan)
328 __s32 left,right,value;
330 if (!(dev->tvnorm->id & scan->std)) {
332 audio_dbg(1, "skipping %d.%03d MHz [%4s]\n",
333 scan->carr / 1000, scan->carr % 1000, scan->name);
337 if (audio_debug > 1) {
339 audio_dbg(1, "debug %d:", scan->carr);
340 for (i = -150; i <= 150; i += 30) {
341 tvaudio_setcarrier(dev,scan->carr+i,scan->carr+i);
342 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
343 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
345 value = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
347 pr_cont(" # %6d # ", value >> 16);
349 pr_cont(" %6d", value >> 16);
354 tvaudio_setcarrier(dev,scan->carr-90,scan->carr-90);
355 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
356 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
358 left = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
360 tvaudio_setcarrier(dev,scan->carr+90,scan->carr+90);
361 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
362 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
364 right = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
368 value = left > right ? left - right : right - left;
369 audio_dbg(1, "scanning %d.%03d MHz [%4s] => dc is %5d [%d/%d]\n",
370 scan->carr / 1000, scan->carr % 1000,
371 scan->name, value, left, right);
376 static int tvaudio_getstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio)
378 __u32 idp, nicam, nicam_status;
381 switch (audio->mode) {
382 case TVAUDIO_FM_MONO:
383 return V4L2_TUNER_SUB_MONO;
384 case TVAUDIO_FM_K_STEREO:
385 case TVAUDIO_FM_BG_STEREO:
386 idp = (saa_readb(SAA7134_IDENT_SIF) & 0xe0) >> 5;
387 audio_dbg(1, "getstereo: fm/stereo: idp=0x%x\n", idp);
388 if (0x03 == (idp & 0x03))
389 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
390 else if (0x05 == (idp & 0x05))
391 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
392 else if (0x01 == (idp & 0x01))
393 retval = V4L2_TUNER_SUB_MONO;
395 case TVAUDIO_FM_SAT_STEREO:
396 /* not implemented (yet) */
398 case TVAUDIO_NICAM_FM:
399 case TVAUDIO_NICAM_AM:
400 nicam = saa_readb(SAA7134_AUDIO_STATUS);
401 audio_dbg(1, "getstereo: nicam=0x%x\n", nicam);
403 nicam_status = saa_readb(SAA7134_NICAM_STATUS);
404 audio_dbg(1, "getstereo: nicam_status=0x%x\n",
407 switch (nicam_status & 0x03) {
409 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
412 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
415 retval = V4L2_TUNER_SUB_MONO;
418 /* No nicam detected */
423 audio_dbg(1, "found audio subchannels:%s%s%s%s\n",
424 (retval & V4L2_TUNER_SUB_MONO) ? " mono" : "",
425 (retval & V4L2_TUNER_SUB_STEREO) ? " stereo" : "",
426 (retval & V4L2_TUNER_SUB_LANG1) ? " lang1" : "",
427 (retval & V4L2_TUNER_SUB_LANG2) ? " lang2" : "");
431 static int tvaudio_setstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio,
434 static char *name[] = {
435 [ V4L2_TUNER_MODE_MONO ] = "mono",
436 [ V4L2_TUNER_MODE_STEREO ] = "stereo",
437 [ V4L2_TUNER_MODE_LANG1 ] = "lang1",
438 [ V4L2_TUNER_MODE_LANG2 ] = "lang2",
439 [ V4L2_TUNER_MODE_LANG1_LANG2 ] = "lang1+lang2",
442 [ V4L2_TUNER_MODE_MONO ] = 0x00, /* ch1 */
443 [ V4L2_TUNER_MODE_STEREO ] = 0x80, /* auto */
444 [ V4L2_TUNER_MODE_LANG1 ] = 0x00, /* ch1 */
445 [ V4L2_TUNER_MODE_LANG2 ] = 0x01, /* ch2 */
446 [ V4L2_TUNER_MODE_LANG1_LANG2 ] = 0x80, /* auto */
450 switch (audio->mode) {
451 case TVAUDIO_FM_MONO:
452 /* nothing to do ... */
454 case TVAUDIO_FM_K_STEREO:
455 case TVAUDIO_FM_BG_STEREO:
456 case TVAUDIO_NICAM_AM:
457 case TVAUDIO_NICAM_FM:
458 audio_dbg(1, "setstereo [fm] => %s\n",
459 name[mode % ARRAY_SIZE(name)]);
460 reg = fm[ mode % ARRAY_SIZE(fm) ];
461 saa_writeb(SAA7134_FM_DEMATRIX, reg);
463 case TVAUDIO_FM_SAT_STEREO:
464 /* Not implemented */
470 static int tvaudio_thread(void *data)
472 struct saa7134_dev *dev = data;
473 int carr_vals[ARRAY_SIZE(mainscan)];
474 unsigned int i, audio, nscan;
475 int max1,max2,carrier,rx,mode,lastmode,default_carrier;
480 tvaudio_sleep(dev,-1);
481 if (kthread_should_stop())
487 dev->thread.scan1 = dev->thread.scan2;
488 audio_dbg(1, "tvaudio thread scan start [%d]\n",
492 saa_writeb(SAA7134_MONITOR_SELECT, 0xa0);
493 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
495 if (dev->ctl_automute)
498 mute_input_7134(dev);
500 /* give the tuner some time */
501 if (tvaudio_sleep(dev,SCAN_INITIAL_DELAY))
509 for (i = 0; i < ARRAY_SIZE(mainscan); i++) {
510 if (!(dev->tvnorm->id & mainscan[i].std))
512 if (!default_carrier)
513 default_carrier = mainscan[i].carr;
518 /* only one candidate -- skip scan ;) */
519 audio_dbg(1, "only one main carrier candidate - skipping scan\n");
521 carrier = default_carrier;
523 /* scan for the main carrier */
524 saa_writeb(SAA7134_MONITOR_SELECT,0x00);
525 tvaudio_setmode(dev,&tvaudio[0],NULL);
526 for (i = 0; i < ARRAY_SIZE(mainscan); i++) {
527 carr_vals[i] = tvaudio_checkcarrier(dev, mainscan+i);
528 if (dev->thread.scan1 != dev->thread.scan2)
531 for (max1 = 0, max2 = 0, i = 0; i < ARRAY_SIZE(mainscan); i++) {
532 if (max1 < carr_vals[i]) {
535 carrier = mainscan[i].carr;
536 } else if (max2 < carr_vals[i]) {
542 if (0 != carrier && max1 > 2000 && max1 > max2*3) {
543 /* found good carrier */
544 audio_dbg(1, "found %s main sound carrier @ %d.%03d MHz [%d/%d]\n",
545 dev->tvnorm->name, carrier/1000, carrier%1000,
547 dev->last_carrier = carrier;
550 } else if (0 != dev->last_carrier) {
551 /* no carrier -- try last detected one as fallback */
552 carrier = dev->last_carrier;
553 audio_dbg(1, "audio carrier scan failed, using %d.%03d MHz [last detected]\n",
554 carrier/1000, carrier%1000);
558 /* no carrier + no fallback -- use default */
559 carrier = default_carrier;
560 audio_dbg(1, "audio carrier scan failed, using %d.%03d MHz [default]\n",
561 carrier/1000, carrier%1000);
564 tvaudio_setcarrier(dev,carrier,carrier);
565 saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x00);
566 saa7134_tvaudio_setmute(dev);
567 /* find the exact tv audio norm */
568 for (audio = UNSET, i = 0; i < TVAUDIO; i++) {
569 if (dev->tvnorm->id != UNSET &&
570 !(dev->tvnorm->id & tvaudio[i].std))
572 if (tvaudio[i].carr1 != carrier)
574 /* Note: at least the primary carrier is right here */
577 tvaudio_setmode(dev,&tvaudio[i],"trying");
578 if (tvaudio_sleep(dev,SCAN_SUBCARRIER_DELAY))
580 if (-1 != tvaudio_getstereo(dev,&tvaudio[i])) {
585 saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x30);
588 tvaudio_setmode(dev,&tvaudio[audio],"using");
590 tvaudio_setstereo(dev,&tvaudio[audio],V4L2_TUNER_MODE_MONO);
591 dev->tvaudio = &tvaudio[audio];
598 if (tvaudio_sleep(dev,5000))
600 if (kthread_should_stop())
602 if (UNSET == dev->thread.mode) {
603 rx = tvaudio_getstereo(dev, &tvaudio[audio]);
604 mode = saa7134_tvaudio_rx2mode(rx);
606 mode = dev->thread.mode;
608 if (lastmode != mode) {
609 tvaudio_setstereo(dev,&tvaudio[audio],mode);
616 dev->thread.stopped = 1;
620 /* ------------------------------------------------------------------ */
621 /* saa7133 / saa7135 code */
623 static char *stdres[0x20] = {
624 [0x00] = "no standard detected",
625 [0x01] = "B/G (in progress)",
626 [0x02] = "D/K (in progress)",
627 [0x03] = "M (in progress)",
630 [0x05] = "B/G NICAM",
631 [0x06] = "D/K A2 (1)",
632 [0x07] = "D/K A2 (2)",
633 [0x08] = "D/K A2 (3)",
634 [0x09] = "D/K NICAM",
642 [0x0f] = "FM radio / IF 10.7 / 50 deemp",
643 [0x10] = "FM radio / IF 10.7 / 75 deemp",
644 [0x11] = "FM radio / IF sel / 50 deemp",
645 [0x12] = "FM radio / IF sel / 75 deemp",
647 [0x13 ... 0x1e ] = "unknown",
648 [0x1f] = "??? [in progress]",
653 #define SAA7135_DSP_RWCLEAR_RERR 1
655 static inline int saa_dsp_reset_error_bit(struct saa7134_dev *dev)
657 int state = saa_readb(SAA7135_DSP_RWSTATE);
658 if (unlikely(state & SAA7135_DSP_RWSTATE_ERR)) {
659 audio_dbg(2, "%s: resetting error bit\n", dev->name);
660 saa_writeb(SAA7135_DSP_RWCLEAR, SAA7135_DSP_RWCLEAR_RERR);
665 static inline int saa_dsp_wait_bit(struct saa7134_dev *dev, int bit)
667 int state, count = DSP_RETRY;
669 state = saa_readb(SAA7135_DSP_RWSTATE);
670 if (unlikely(state & SAA7135_DSP_RWSTATE_ERR)) {
671 pr_warn("%s: dsp access error\n", dev->name);
672 saa_dsp_reset_error_bit(dev);
675 while (0 == (state & bit)) {
676 if (unlikely(0 == count)) {
677 pr_err("dsp access wait timeout [bit=%s]\n",
678 (bit & SAA7135_DSP_RWSTATE_WRR) ? "WRR" :
679 (bit & SAA7135_DSP_RWSTATE_RDB) ? "RDB" :
680 (bit & SAA7135_DSP_RWSTATE_IDA) ? "IDA" :
685 state = saa_readb(SAA7135_DSP_RWSTATE);
692 int saa_dsp_writel(struct saa7134_dev *dev, int reg, u32 value)
696 audio_dbg(2, "dsp write reg 0x%x = 0x%06x\n",
697 (reg << 2) & 0xffffffff, value);
698 err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR);
701 saa_writel(reg,value);
702 err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR);
708 static int getstereo_7133(struct saa7134_dev *dev)
710 int retval = V4L2_TUNER_SUB_MONO;
713 value = saa_readl(0x528 >> 2);
715 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
717 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
721 static int mute_input_7133(struct saa7134_dev *dev)
726 struct saa7134_input *in;
729 switch (dev->input->amux) {
742 saa_dsp_writel(dev, 0x464 >> 2, xbarin);
748 saa_dsp_writel(dev, 0x46c >> 2, xbarout);
750 saa_writel(0x594 >> 2, reg);
753 /* switch gpio-connected external audio mux */
754 if (0 != card(dev).gpiomask) {
755 mask = card(dev).gpiomask;
757 if (card(dev).mute.type && dev->ctl_mute)
758 in = &card(dev).mute;
762 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, mask, mask);
763 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, mask, in->gpio);
764 saa7134_track_gpio(dev, saa7134_input_name[in->type]);
770 static int tvaudio_thread_ddep(void *data)
772 struct saa7134_dev *dev = data;
777 tvaudio_sleep(dev,-1);
778 if (kthread_should_stop())
783 dev->thread.scan1 = dev->thread.scan2;
784 audio_dbg(1, "tvaudio thread scan start [%d]\n",
787 if (audio_ddep >= 0x04 && audio_ddep <= 0x0e) {
788 /* insmod option override */
789 norms = (audio_ddep << 2) | 0x01;
790 audio_dbg(1, "ddep override: %s\n",
792 } else if (&card(dev).radio == dev->input) {
793 audio_dbg(1, "FM Radio\n");
794 if (dev->tuner_type == TUNER_PHILIPS_TDA8290) {
795 norms = (0x11 << 2) | 0x01;
796 /* set IF frequency to 5.5 MHz */
797 saa_dsp_writel(dev, 0x42c >> 2, 0x729555);
799 norms = (0x0f << 2) | 0x01;
802 /* (let chip) scan for sound carrier */
804 if (dev->tvnorm->id & (V4L2_STD_B | V4L2_STD_GH))
806 if (dev->tvnorm->id & V4L2_STD_PAL_I)
808 if (dev->tvnorm->id & V4L2_STD_DK)
810 if (dev->tvnorm->id & V4L2_STD_MN)
812 if (dev->tvnorm->id & (V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC))
815 norms = 0x7c; /* all */
816 audio_dbg(1, "scanning:%s%s%s%s%s\n",
817 (norms & 0x04) ? " B/G" : "",
818 (norms & 0x08) ? " D/K" : "",
819 (norms & 0x10) ? " L/L'" : "",
820 (norms & 0x20) ? " I" : "",
821 (norms & 0x40) ? " M" : "");
824 /* kick automatic standard detection */
825 saa_dsp_writel(dev, 0x454 >> 2, 0);
826 saa_dsp_writel(dev, 0x454 >> 2, norms | 0x80);
828 /* setup crossbars */
829 saa_dsp_writel(dev, 0x464 >> 2, 0x000000);
830 saa_dsp_writel(dev, 0x470 >> 2, 0x101010);
832 if (tvaudio_sleep(dev,3000))
834 value = saa_readl(0x528 >> 2) & 0xffffff;
836 audio_dbg(1, "tvaudio thread status: 0x%x [%s%s%s]\n",
837 value, stdres[value & 0x1f],
838 (value & 0x000020) ? ",stereo" : "",
839 (value & 0x000040) ? ",dual" : "");
840 audio_dbg(1, "detailed status: %s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s\n",
841 (value & 0x000080) ? " A2/EIAJ pilot tone " : "",
842 (value & 0x000100) ? " A2/EIAJ dual " : "",
843 (value & 0x000200) ? " A2/EIAJ stereo " : "",
844 (value & 0x000400) ? " A2/EIAJ noise mute " : "",
846 (value & 0x000800) ? " BTSC/FM radio pilot " : "",
847 (value & 0x001000) ? " SAP carrier " : "",
848 (value & 0x002000) ? " BTSC stereo noise mute " : "",
849 (value & 0x004000) ? " SAP noise mute " : "",
850 (value & 0x008000) ? " VDSP " : "",
852 (value & 0x010000) ? " NICST " : "",
853 (value & 0x020000) ? " NICDU " : "",
854 (value & 0x040000) ? " NICAM muted " : "",
855 (value & 0x080000) ? " NICAM reserve sound " : "",
857 (value & 0x100000) ? " init done " : "");
861 dev->thread.stopped = 1;
865 /* ------------------------------------------------------------------ */
866 /* common stuff + external entry points */
868 void saa7134_enable_i2s(struct saa7134_dev *dev)
872 if (!card_is_empress(dev))
875 if (dev->pci->device == PCI_DEVICE_ID_PHILIPS_SAA7130)
878 /* configure GPIO for out */
879 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, 0x0E000000, 0x00000000);
881 switch (dev->pci->device) {
882 case PCI_DEVICE_ID_PHILIPS_SAA7133:
883 case PCI_DEVICE_ID_PHILIPS_SAA7135:
884 /* Set I2S format (SONY) */
885 saa_writeb(SAA7133_I2S_AUDIO_CONTROL, 0x00);
887 saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x11);
890 case PCI_DEVICE_ID_PHILIPS_SAA7134:
891 i2s_format = (dev->input->amux == TV) ? 0x00 : 0x01;
893 /* enable I2S audio output for the mpeg encoder */
894 saa_writeb(SAA7134_I2S_OUTPUT_SELECT, 0x80);
895 saa_writeb(SAA7134_I2S_OUTPUT_FORMAT, i2s_format);
896 saa_writeb(SAA7134_I2S_OUTPUT_LEVEL, 0x0F);
897 saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x01);
904 int saa7134_tvaudio_rx2mode(u32 rx)
908 mode = V4L2_TUNER_MODE_MONO;
909 if (rx & V4L2_TUNER_SUB_STEREO)
910 mode = V4L2_TUNER_MODE_STEREO;
911 else if (rx & V4L2_TUNER_SUB_LANG1)
912 mode = V4L2_TUNER_MODE_LANG1;
913 else if (rx & V4L2_TUNER_SUB_LANG2)
914 mode = V4L2_TUNER_MODE_LANG2;
918 void saa7134_tvaudio_setmute(struct saa7134_dev *dev)
920 switch (dev->pci->device) {
921 case PCI_DEVICE_ID_PHILIPS_SAA7130:
922 case PCI_DEVICE_ID_PHILIPS_SAA7134:
923 mute_input_7134(dev);
925 case PCI_DEVICE_ID_PHILIPS_SAA7133:
926 case PCI_DEVICE_ID_PHILIPS_SAA7135:
927 mute_input_7133(dev);
932 void saa7134_tvaudio_setinput(struct saa7134_dev *dev,
933 struct saa7134_input *in)
936 switch (dev->pci->device) {
937 case PCI_DEVICE_ID_PHILIPS_SAA7130:
938 case PCI_DEVICE_ID_PHILIPS_SAA7134:
939 mute_input_7134(dev);
941 case PCI_DEVICE_ID_PHILIPS_SAA7133:
942 case PCI_DEVICE_ID_PHILIPS_SAA7135:
943 mute_input_7133(dev);
946 saa7134_enable_i2s(dev);
949 void saa7134_tvaudio_setvolume(struct saa7134_dev *dev, int level)
951 switch (dev->pci->device) {
952 case PCI_DEVICE_ID_PHILIPS_SAA7134:
953 saa_writeb(SAA7134_CHANNEL1_LEVEL, level & 0x1f);
954 saa_writeb(SAA7134_CHANNEL2_LEVEL, level & 0x1f);
955 saa_writeb(SAA7134_NICAM_LEVEL_ADJUST, level & 0x1f);
960 int saa7134_tvaudio_getstereo(struct saa7134_dev *dev)
962 int retval = V4L2_TUNER_SUB_MONO;
964 switch (dev->pci->device) {
965 case PCI_DEVICE_ID_PHILIPS_SAA7134:
967 retval = tvaudio_getstereo(dev,dev->tvaudio);
969 case PCI_DEVICE_ID_PHILIPS_SAA7133:
970 case PCI_DEVICE_ID_PHILIPS_SAA7135:
971 retval = getstereo_7133(dev);
977 void saa7134_tvaudio_init(struct saa7134_dev *dev)
979 int clock = saa7134_boards[dev->board].audio_clock;
981 if (UNSET != audio_clock_override)
982 clock = audio_clock_override;
984 switch (dev->pci->device) {
985 case PCI_DEVICE_ID_PHILIPS_SAA7134:
986 /* init all audio registers */
987 saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x00);
993 saa_writeb(SAA7134_AUDIO_CLOCK0, clock & 0xff);
994 saa_writeb(SAA7134_AUDIO_CLOCK1, (clock >> 8) & 0xff);
995 saa_writeb(SAA7134_AUDIO_CLOCK2, (clock >> 16) & 0xff);
996 /* frame locked audio is mandatory for NICAM */
997 saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x01);
998 saa_writeb(SAA7134_NICAM_ERROR_LOW, 0x14);
999 saa_writeb(SAA7134_NICAM_ERROR_HIGH, 0x50);
1001 case PCI_DEVICE_ID_PHILIPS_SAA7133:
1002 case PCI_DEVICE_ID_PHILIPS_SAA7135:
1003 saa_writel(0x598 >> 2, clock);
1004 saa_dsp_writel(dev, 0x474 >> 2, 0x00);
1005 saa_dsp_writel(dev, 0x450 >> 2, 0x00);
1009 int saa7134_tvaudio_init2(struct saa7134_dev *dev)
1011 int (*my_thread)(void *data) = NULL;
1013 switch (dev->pci->device) {
1014 case PCI_DEVICE_ID_PHILIPS_SAA7134:
1015 my_thread = tvaudio_thread;
1017 case PCI_DEVICE_ID_PHILIPS_SAA7133:
1018 case PCI_DEVICE_ID_PHILIPS_SAA7135:
1019 my_thread = tvaudio_thread_ddep;
1023 dev->thread.thread = NULL;
1024 dev->thread.scan1 = dev->thread.scan2 = 0;
1026 saa7134_tvaudio_init(dev);
1027 /* start tvaudio thread */
1028 dev->thread.thread = kthread_run(my_thread, dev, "%s", dev->name);
1029 if (IS_ERR(dev->thread.thread)) {
1030 pr_warn("%s: kernel_thread() failed\n",
1032 /* XXX: missing error handling here */
1036 saa7134_enable_i2s(dev);
1040 int saa7134_tvaudio_close(struct saa7134_dev *dev)
1043 /* anything else to undo? */
1047 int saa7134_tvaudio_fini(struct saa7134_dev *dev)
1049 /* shutdown tvaudio thread */
1050 if (dev->thread.thread && !dev->thread.stopped)
1051 kthread_stop(dev->thread.thread);
1053 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, 0x00); /* LINE1 */
1057 int saa7134_tvaudio_do_scan(struct saa7134_dev *dev)
1059 if (dev->input->amux != TV) {
1060 audio_dbg(1, "sound IF not in use, skipping scan\n");
1062 saa7134_tvaudio_setmute(dev);
1063 } else if (dev->thread.thread) {
1064 dev->thread.mode = UNSET;
1065 dev->thread.scan2++;
1067 if (!dev->insuspend && !dev->thread.stopped)
1068 wake_up_process(dev->thread.thread);
1071 saa7134_tvaudio_setmute(dev);
1076 EXPORT_SYMBOL(saa_dsp_writel);
1077 EXPORT_SYMBOL(saa7134_tvaudio_setmute);