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Linux v2.6.15-rc7
[pohmelfs.git] / drivers / media / video / saa7134 / saa7134-tvaudio.c
blob93268427750dea44b3e8839a9f8c4161935b3485
1 /*
2 *
3 * device driver for philips saa7134 based TV cards
4 * tv audio decoder (fm stereo, nicam, ...)
5 *
6 * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
7 *
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.
12 *
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.
17 *
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.
21 */
22
23 #include <linux/init.h>
24 #include <linux/list.h>
25 #include <linux/module.h>
26 #include <linux/moduleparam.h>
27 #include <linux/kernel.h>
28 #include <linux/slab.h>
29 #include <linux/delay.h>
30 #include <linux/smp_lock.h>
31 #include <asm/div64.h>
32
33 #include "saa7134-reg.h"
34 #include "saa7134.h"
35
36 /* ------------------------------------------------------------------ */
37
38 static unsigned int audio_debug = 0;
39 module_param(audio_debug, int, 0644);
40 MODULE_PARM_DESC(audio_debug,"enable debug messages [tv audio]");
41
42 static unsigned int audio_ddep = 0;
43 module_param(audio_ddep, int, 0644);
44 MODULE_PARM_DESC(audio_ddep,"audio ddep overwrite");
45
46 static int audio_clock_override = UNSET;
47 module_param(audio_clock_override, int, 0644);
48
49 static int audio_clock_tweak = 0;
50 module_param(audio_clock_tweak, int, 0644);
51 MODULE_PARM_DESC(audio_clock_tweak, "Audio clock tick fine tuning for cards with audio crystal that's slightly off (range [-1024 .. 1024])");
52
53 #define dprintk(fmt, arg...) if (audio_debug) \
54 printk(KERN_DEBUG "%s/audio: " fmt, dev->name , ## arg)
55 #define d2printk(fmt, arg...) if (audio_debug > 1) \
56 printk(KERN_DEBUG "%s/audio: " fmt, dev->name, ## arg)
57
58 #define print_regb(reg) printk("%s: reg 0x%03x [%-16s]: 0x%02x\n", \
59 dev->name,(SAA7134_##reg),(#reg),saa_readb((SAA7134_##reg)))
60
61 /* msecs */
62 #define SCAN_INITIAL_DELAY 1000
63 #define SCAN_SAMPLE_DELAY 200
64 #define SCAN_SUBCARRIER_DELAY 2000
65
66 /* ------------------------------------------------------------------ */
67 /* saa7134 code */
68
69 static struct mainscan {
70 char *name;
71 v4l2_std_id std;
72 int carr;
73 } mainscan[] = {
74 {
75 .name = "M",
76 .std = V4L2_STD_NTSC | V4L2_STD_PAL_M,
77 .carr = 4500,
78 },{
79 .name = "BG",
80 .std = V4L2_STD_PAL_BG,
81 .carr = 5500,
82 },{
83 .name = "I",
84 .std = V4L2_STD_PAL_I,
85 .carr = 6000,
86 },{
87 .name = "DKL",
88 .std = V4L2_STD_PAL_DK | V4L2_STD_SECAM,
89 .carr = 6500,
90 }
91 };
92
93 static struct saa7134_tvaudio tvaudio[] = {
94 {
95 .name = "PAL-B/G FM-stereo",
96 .std = V4L2_STD_PAL,
97 .mode = TVAUDIO_FM_BG_STEREO,
98 .carr1 = 5500,
99 .carr2 = 5742,
100 },{
101 .name = "PAL-D/K1 FM-stereo",
102 .std = V4L2_STD_PAL,
103 .carr1 = 6500,
104 .carr2 = 6258,
105 .mode = TVAUDIO_FM_BG_STEREO,
106 },{
107 .name = "PAL-D/K2 FM-stereo",
108 .std = V4L2_STD_PAL,
109 .carr1 = 6500,
110 .carr2 = 6742,
111 .mode = TVAUDIO_FM_BG_STEREO,
112 },{
113 .name = "PAL-D/K3 FM-stereo",
114 .std = V4L2_STD_PAL,
115 .carr1 = 6500,
116 .carr2 = 5742,
117 .mode = TVAUDIO_FM_BG_STEREO,
118 },{
119 .name = "PAL-B/G NICAM",
120 .std = V4L2_STD_PAL,
121 .carr1 = 5500,
122 .carr2 = 5850,
123 .mode = TVAUDIO_NICAM_FM,
124 },{
125 .name = "PAL-I NICAM",
126 .std = V4L2_STD_PAL,
127 .carr1 = 6000,
128 .carr2 = 6552,
129 .mode = TVAUDIO_NICAM_FM,
130 },{
131 .name = "PAL-D/K NICAM",
132 .std = V4L2_STD_PAL,
133 .carr1 = 6500,
134 .carr2 = 5850,
135 .mode = TVAUDIO_NICAM_FM,
136 },{
137 .name = "SECAM-L NICAM",
138 .std = V4L2_STD_SECAM,
139 .carr1 = 6500,
140 .carr2 = 5850,
141 .mode = TVAUDIO_NICAM_AM,
142 },{
143 .name = "SECAM-D/K",
144 .std = V4L2_STD_SECAM,
145 .carr1 = 6500,
146 .carr2 = -1,
147 .mode = TVAUDIO_FM_MONO,
148 },{
149 .name = "NTSC-M",
150 .std = V4L2_STD_NTSC,
151 .carr1 = 4500,
152 .carr2 = -1,
153 .mode = TVAUDIO_FM_MONO,
154 },{
155 .name = "NTSC-A2 FM-stereo",
156 .std = V4L2_STD_NTSC,
157 .carr1 = 4500,
158 .carr2 = 4724,
159 .mode = TVAUDIO_FM_K_STEREO,
160 }
161 };
162 #define TVAUDIO (sizeof(tvaudio)/sizeof(struct saa7134_tvaudio))
163
164 /* ------------------------------------------------------------------ */
165
166 static void tvaudio_init(struct saa7134_dev *dev)
167 {
168 int clock = saa7134_boards[dev->board].audio_clock;
169
170 if (UNSET != audio_clock_override)
171 clock = audio_clock_override;
172
173 /* init all audio registers */
174 saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x00);
175 if (need_resched())
176 schedule();
177 else
178 udelay(10);
179
180 saa_writeb(SAA7134_AUDIO_CLOCK0, clock & 0xff);
181 saa_writeb(SAA7134_AUDIO_CLOCK1, (clock >> 8) & 0xff);
182 saa_writeb(SAA7134_AUDIO_CLOCK2, (clock >> 16) & 0xff);
183 // frame locked audio was reported not to be reliable
184 saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x02);
185
186 saa_writeb(SAA7134_NICAM_ERROR_LOW, 0x14);
187 saa_writeb(SAA7134_NICAM_ERROR_HIGH, 0x50);
188 saa_writeb(SAA7134_MONITOR_SELECT, 0xa0);
189 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
190 }
191
192 static u32 tvaudio_carr2reg(u32 carrier)
193 {
194 u64 a = carrier;
195
196 a <<= 24;
197 do_div(a,12288);
198 return a;
199 }
200
201 static void tvaudio_setcarrier(struct saa7134_dev *dev,
202 int primary, int secondary)
203 {
204 if (-1 == secondary)
205 secondary = primary;
206 saa_writel(SAA7134_CARRIER1_FREQ0 >> 2, tvaudio_carr2reg(primary));
207 saa_writel(SAA7134_CARRIER2_FREQ0 >> 2, tvaudio_carr2reg(secondary));
208 }
209
210 #define SAA7134_MUTE_MASK 0xbb
211 #define SAA7134_MUTE_ANALOG 0x04
212 #define SAA7134_MUTE_I2S 0x40
213
214 static void mute_input_7134(struct saa7134_dev *dev)
215 {
216 unsigned int mute;
217 struct saa7134_input *in;
218 int ausel=0, ics=0, ocs=0;
219 int mask;
220
221 /* look what is to do ... */
222 in = dev->input;
223 mute = (dev->ctl_mute ||
224 (dev->automute && (&card(dev).radio) != in));
225 if (card(dev).mute.name) {
226 /*
227 * 7130 - we'll mute using some unconnected audio input
228 * 7134 - we'll probably should switch external mux with gpio
229 */
230 if (mute)
231 in = &card(dev).mute;
232 }
233
234 if (dev->hw_mute == mute &&
235 dev->hw_input == in) {
236 dprintk("mute/input: nothing to do [mute=%d,input=%s]\n",
237 mute,in->name);
238 return;
239 }
240
241 dprintk("ctl_mute=%d automute=%d input=%s => mute=%d input=%s\n",
242 dev->ctl_mute,dev->automute,dev->input->name,mute,in->name);
243 dev->hw_mute = mute;
244 dev->hw_input = in;
245
246 if (PCI_DEVICE_ID_PHILIPS_SAA7134 == dev->pci->device)
247 /* 7134 mute */
248 saa_writeb(SAA7134_AUDIO_MUTE_CTRL, mute ?
249 SAA7134_MUTE_MASK |
250 SAA7134_MUTE_ANALOG |
251 SAA7134_MUTE_I2S :
252 SAA7134_MUTE_MASK);
253
254 /* switch internal audio mux */
255 switch (in->amux) {
256 case TV: ausel=0xc0; ics=0x00; ocs=0x02; break;
257 case LINE1: ausel=0x80; ics=0x00; ocs=0x00; break;
258 case LINE2: ausel=0x80; ics=0x08; ocs=0x01; break;
259 case LINE2_LEFT: ausel=0x80; ics=0x08; ocs=0x05; break;
260 }
261 saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, ausel);
262 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x08, ics);
263 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, ocs);
264 // for oss, we need to change the clock configuration
265 if (in->amux == TV)
266 saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x00);
267 else
268 saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x01);
269
270 /* switch gpio-connected external audio mux */
271 if (0 == card(dev).gpiomask)
272 return;
273
274 mask = card(dev).gpiomask;
275 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, mask, mask);
276 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, mask, in->gpio);
277 saa7134_track_gpio(dev,in->name);
278 }
279
280 static void tvaudio_setmode(struct saa7134_dev *dev,
281 struct saa7134_tvaudio *audio,
282 char *note)
283 {
284 int acpf, tweak = 0;
285
286 if (dev->tvnorm->id == V4L2_STD_NTSC) {
287 acpf = 0x19066;
288 } else {
289 acpf = 0x1e000;
290 }
291 if (audio_clock_tweak > -1024 && audio_clock_tweak < 1024)
292 tweak = audio_clock_tweak;
293
294 if (note)
295 dprintk("tvaudio_setmode: %s %s [%d.%03d/%d.%03d MHz] acpf=%d%+d\n",
296 note,audio->name,
297 audio->carr1 / 1000, audio->carr1 % 1000,
298 audio->carr2 / 1000, audio->carr2 % 1000,
299 acpf, tweak);
300
301 acpf += tweak;
302 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD0, (acpf & 0x0000ff) >> 0);
303 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD1, (acpf & 0x00ff00) >> 8);
304 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD2, (acpf & 0x030000) >> 16);
305 tvaudio_setcarrier(dev,audio->carr1,audio->carr2);
306
307 switch (audio->mode) {
308 case TVAUDIO_FM_MONO:
309 case TVAUDIO_FM_BG_STEREO:
310 saa_writeb(SAA7134_DEMODULATOR, 0x00);
311 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
312 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x22);
313 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
314 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa0);
315 break;
316 case TVAUDIO_FM_K_STEREO:
317 saa_writeb(SAA7134_DEMODULATOR, 0x00);
318 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x01);
319 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x22);
320 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
321 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa0);
322 break;
323 case TVAUDIO_NICAM_FM:
324 saa_writeb(SAA7134_DEMODULATOR, 0x10);
325 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
326 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x44);
327 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa1);
328 saa_writeb(SAA7134_NICAM_CONFIG, 0x00);
329 break;
330 case TVAUDIO_NICAM_AM:
331 saa_writeb(SAA7134_DEMODULATOR, 0x12);
332 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
333 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x44);
334 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa1);
335 saa_writeb(SAA7134_NICAM_CONFIG, 0x00);
336 break;
337 case TVAUDIO_FM_SAT_STEREO:
338 /* not implemented (yet) */
339 break;
340 }
341 }
342
343 static int tvaudio_sleep(struct saa7134_dev *dev, int timeout)
344 {
345 DECLARE_WAITQUEUE(wait, current);
346
347 add_wait_queue(&dev->thread.wq, &wait);
348 if (dev->thread.scan1 == dev->thread.scan2 && !dev->thread.shutdown) {
349 if (timeout < 0) {
350 set_current_state(TASK_INTERRUPTIBLE);
351 schedule();
352 } else {
353 schedule_timeout_interruptible
354 (msecs_to_jiffies(timeout));
355 }
356 }
357 remove_wait_queue(&dev->thread.wq, &wait);
358 return dev->thread.scan1 != dev->thread.scan2;
359 }
360
361 static int tvaudio_checkcarrier(struct saa7134_dev *dev, struct mainscan *scan)
362 {
363 __s32 left,right,value;
364
365 if (audio_debug > 1) {
366 int i;
367 dprintk("debug %d:",scan->carr);
368 for (i = -150; i <= 150; i += 30) {
369 tvaudio_setcarrier(dev,scan->carr+i,scan->carr+i);
370 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
371 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
372 return -1;
373 value = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
374 if (0 == i)
375 printk(" # %6d # ",value >> 16);
376 else
377 printk(" %6d",value >> 16);
378 }
379 printk("\n");
380 }
381
382 if (dev->tvnorm->id & scan->std) {
383 tvaudio_setcarrier(dev,scan->carr-90,scan->carr-90);
384 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
385 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
386 return -1;
387 left = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
388
389 tvaudio_setcarrier(dev,scan->carr+90,scan->carr+90);
390 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
391 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
392 return -1;
393 right = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
394
395 left >>= 16;
396 right >>= 16;
397 value = left > right ? left - right : right - left;
398 dprintk("scanning %d.%03d MHz [%4s] => dc is %5d [%d/%d]\n",
399 scan->carr / 1000, scan->carr % 1000,
400 scan->name, value, left, right);
401 } else {
402 value = 0;
403 dprintk("skipping %d.%03d MHz [%4s]\n",
404 scan->carr / 1000, scan->carr % 1000, scan->name);
405 }
406 return value;
407 }
408
409
410 static int tvaudio_getstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio)
411 {
412 __u32 idp, nicam, nicam_status;
413 int retval = -1;
414
415 switch (audio->mode) {
416 case TVAUDIO_FM_MONO:
417 return V4L2_TUNER_SUB_MONO;
418 case TVAUDIO_FM_K_STEREO:
419 case TVAUDIO_FM_BG_STEREO:
420 idp = (saa_readb(SAA7134_IDENT_SIF) & 0xe0) >> 5;
421 dprintk("getstereo: fm/stereo: idp=0x%x\n",idp);
422 if (0x03 == (idp & 0x03))
423 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
424 else if (0x05 == (idp & 0x05))
425 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
426 else if (0x01 == (idp & 0x01))
427 retval = V4L2_TUNER_SUB_MONO;
428 break;
429 case TVAUDIO_FM_SAT_STEREO:
430 /* not implemented (yet) */
431 break;
432 case TVAUDIO_NICAM_FM:
433 case TVAUDIO_NICAM_AM:
434 nicam = saa_readb(SAA7134_AUDIO_STATUS);
435 dprintk("getstereo: nicam=0x%x\n",nicam);
436 if (nicam & 0x1) {
437 nicam_status = saa_readb(SAA7134_NICAM_STATUS);
438 dprintk("getstereo: nicam_status=0x%x\n", nicam_status);
439
440 switch (nicam_status & 0x03) {
441 case 0x01:
442 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
443 break;
444 case 0x02:
445 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
446 break;
447 default:
448 retval = V4L2_TUNER_SUB_MONO;
449 }
450 } else {
451 /* No nicam detected */
452 }
453 break;
454 }
455 if (retval != -1)
456 dprintk("found audio subchannels:%s%s%s%s\n",
457 (retval & V4L2_TUNER_SUB_MONO) ? " mono" : "",
458 (retval & V4L2_TUNER_SUB_STEREO) ? " stereo" : "",
459 (retval & V4L2_TUNER_SUB_LANG1) ? " lang1" : "",
460 (retval & V4L2_TUNER_SUB_LANG2) ? " lang2" : "");
461 return retval;
462 }
463
464 static int tvaudio_setstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio,
465 u32 mode)
466 {
467 static char *name[] = {
468 [ V4L2_TUNER_MODE_MONO ] = "mono",
469 [ V4L2_TUNER_MODE_STEREO ] = "stereo",
470 [ V4L2_TUNER_MODE_LANG1 ] = "lang1",
471 [ V4L2_TUNER_MODE_LANG2 ] = "lang2",
472 };
473 static u32 fm[] = {
474 [ V4L2_TUNER_MODE_MONO ] = 0x00, /* ch1 */
475 [ V4L2_TUNER_MODE_STEREO ] = 0x80, /* auto */
476 [ V4L2_TUNER_MODE_LANG1 ] = 0x00, /* ch1 */
477 [ V4L2_TUNER_MODE_LANG2 ] = 0x01, /* ch2 */
478 };
479 u32 reg;
480
481 switch (audio->mode) {
482 case TVAUDIO_FM_MONO:
483 /* nothing to do ... */
484 break;
485 case TVAUDIO_FM_K_STEREO:
486 case TVAUDIO_FM_BG_STEREO:
487 case TVAUDIO_NICAM_AM:
488 case TVAUDIO_NICAM_FM:
489 dprintk("setstereo [fm] => %s\n",
490 name[ mode % ARRAY_SIZE(name) ]);
491 reg = fm[ mode % ARRAY_SIZE(fm) ];
492 saa_writeb(SAA7134_FM_DEMATRIX, reg);
493 break;
494 case TVAUDIO_FM_SAT_STEREO:
495 /* Not implemented */
496 break;
497 }
498 return 0;
499 }
500
501 static int tvaudio_thread(void *data)
502 {
503 struct saa7134_dev *dev = data;
504 int carr_vals[ARRAY_SIZE(mainscan)];
505 unsigned int i, audio, nscan;
506 int max1,max2,carrier,rx,mode,lastmode,default_carrier;
507
508 daemonize("%s", dev->name);
509 allow_signal(SIGTERM);
510 for (;;) {
511 tvaudio_sleep(dev,-1);
512 if (dev->thread.shutdown || signal_pending(current))
513 goto done;
514
515 restart:
516 dev->thread.scan1 = dev->thread.scan2;
517 dprintk("tvaudio thread scan start [%d]\n",dev->thread.scan1);
518 dev->tvaudio = NULL;
519 tvaudio_init(dev);
520 if (dev->ctl_automute)
521 dev->automute = 1;
522 mute_input_7134(dev);
523
524 /* give the tuner some time */
525 if (tvaudio_sleep(dev,SCAN_INITIAL_DELAY))
526 goto restart;
527
528 max1 = 0;
529 max2 = 0;
530 nscan = 0;
531 carrier = 0;
532 default_carrier = 0;
533 for (i = 0; i < ARRAY_SIZE(mainscan); i++) {
534 if (!(dev->tvnorm->id & mainscan[i].std))
535 continue;
536 if (!default_carrier)
537 default_carrier = mainscan[i].carr;
538 nscan++;
539 }
540
541 if (1 == nscan) {
542 /* only one candidate -- skip scan ;) */
543 max1 = 12345;
544 carrier = default_carrier;
545 } else {
546 /* scan for the main carrier */
547 saa_writeb(SAA7134_MONITOR_SELECT,0x00);
548 tvaudio_setmode(dev,&tvaudio[0],NULL);
549 for (i = 0; i < ARRAY_SIZE(mainscan); i++) {
550 carr_vals[i] = tvaudio_checkcarrier(dev, mainscan+i);
551 if (dev->thread.scan1 != dev->thread.scan2)
552 goto restart;
553 }
554 for (max1 = 0, max2 = 0, i = 0; i < ARRAY_SIZE(mainscan); i++) {
555 if (max1 < carr_vals[i]) {
556 max2 = max1;
557 max1 = carr_vals[i];
558 carrier = mainscan[i].carr;
559 } else if (max2 < carr_vals[i]) {
560 max2 = carr_vals[i];
561 }
562 }
563 }
564
565 if (0 != carrier && max1 > 2000 && max1 > max2*3) {
566 /* found good carrier */
567 dprintk("found %s main sound carrier @ %d.%03d MHz [%d/%d]\n",
568 dev->tvnorm->name, carrier/1000, carrier%1000,
569 max1, max2);
570 dev->last_carrier = carrier;
571
572 } else if (0 != dev->last_carrier) {
573 /* no carrier -- try last detected one as fallback */
574 carrier = dev->last_carrier;
575 dprintk(KERN_WARNING "%s/audio: audio carrier scan failed, "
576 "using %d.%03d MHz [last detected]\n",
577 dev->name, carrier/1000, carrier%1000);
578
579 } else {
580 /* no carrier + no fallback -- use default */
581 carrier = default_carrier;
582 dprintk(KERN_WARNING "%s/audio: audio carrier scan failed, "
583 "using %d.%03d MHz [default]\n",
584 dev->name, carrier/1000, carrier%1000);
585 }
586 tvaudio_setcarrier(dev,carrier,carrier);
587 dev->automute = 0;
588 saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x00);
589 saa7134_tvaudio_setmute(dev);
590
591 /* find the exact tv audio norm */
592 for (audio = UNSET, i = 0; i < TVAUDIO; i++) {
593 if (dev->tvnorm->id != UNSET &&
594 !(dev->tvnorm->id & tvaudio[i].std))
595 continue;
596 if (tvaudio[i].carr1 != carrier)
597 continue;
598
599 if (UNSET == audio)
600 audio = i;
601 tvaudio_setmode(dev,&tvaudio[i],"trying");
602 if (tvaudio_sleep(dev,SCAN_SUBCARRIER_DELAY))
603 goto restart;
604 if (-1 != tvaudio_getstereo(dev,&tvaudio[i])) {
605 audio = i;
606 break;
607 }
608 }
609 saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x30);
610 if (UNSET == audio)
611 continue;
612 tvaudio_setmode(dev,&tvaudio[audio],"using");
613 tvaudio_setstereo(dev,&tvaudio[audio],V4L2_TUNER_MODE_MONO);
614 dev->tvaudio = &tvaudio[audio];
615
616 lastmode = 42;
617 for (;;) {
618 if (tvaudio_sleep(dev,5000))
619 goto restart;
620 if (dev->thread.shutdown || signal_pending(current))
621 break;
622 if (UNSET == dev->thread.mode) {
623 rx = tvaudio_getstereo(dev,&tvaudio[i]);
624 mode = saa7134_tvaudio_rx2mode(rx);
625 } else {
626 mode = dev->thread.mode;
627 }
628 if (lastmode != mode) {
629 tvaudio_setstereo(dev,&tvaudio[audio],mode);
630 lastmode = mode;
631 }
632 }
633 }
634
635 done:
636 complete_and_exit(&dev->thread.exit, 0);
637 return 0;
638 }
639
640 /* ------------------------------------------------------------------ */
641 /* saa7133 / saa7135 code */
642
643 static char *stdres[0x20] = {
644 [0x00] = "no standard detected",
645 [0x01] = "B/G (in progress)",
646 [0x02] = "D/K (in progress)",
647 [0x03] = "M (in progress)",
648
649 [0x04] = "B/G A2",
650 [0x05] = "B/G NICAM",
651 [0x06] = "D/K A2 (1)",
652 [0x07] = "D/K A2 (2)",
653 [0x08] = "D/K A2 (3)",
654 [0x09] = "D/K NICAM",
655 [0x0a] = "L NICAM",
656 [0x0b] = "I NICAM",
657
658 [0x0c] = "M Korea",
659 [0x0d] = "M BTSC ",
660 [0x0e] = "M EIAJ",
661
662 [0x0f] = "FM radio / IF 10.7 / 50 deemp",
663 [0x10] = "FM radio / IF 10.7 / 75 deemp",
664 [0x11] = "FM radio / IF sel / 50 deemp",
665 [0x12] = "FM radio / IF sel / 75 deemp",
666
667 [0x13 ... 0x1e ] = "unknown",
668 [0x1f] = "??? [in progress]",
669 };
670
671 #define DSP_RETRY 32
672 #define DSP_DELAY 16
673
674 static inline int saa_dsp_wait_bit(struct saa7134_dev *dev, int bit)
675 {
676 int state, count = DSP_RETRY;
677
678 state = saa_readb(SAA7135_DSP_RWSTATE);
679 if (unlikely(state & SAA7135_DSP_RWSTATE_ERR)) {
680 printk("%s: dsp access error\n",dev->name);
681 /* FIXME: send ack ... */
682 return -EIO;
683 }
684 while (0 == (state & bit)) {
685 if (unlikely(0 == count)) {
686 printk("%s: dsp access wait timeout [bit=%s]\n",
687 dev->name,
688 (bit & SAA7135_DSP_RWSTATE_WRR) ? "WRR" :
689 (bit & SAA7135_DSP_RWSTATE_RDB) ? "RDB" :
690 (bit & SAA7135_DSP_RWSTATE_IDA) ? "IDA" :
691 "???");
692 return -EIO;
693 }
694 saa_wait(DSP_DELAY);
695 state = saa_readb(SAA7135_DSP_RWSTATE);
696 count--;
697 }
698 return 0;
699 }
700
701
702 int saa_dsp_writel(struct saa7134_dev *dev, int reg, u32 value)
703 {
704 int err;
705
706 d2printk("dsp write reg 0x%x = 0x%06x\n",reg<<2,value);
707 err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR);
708 if (err < 0)
709 return err;
710 saa_writel(reg,value);
711 err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR);
712 if (err < 0)
713 return err;
714 return 0;
715 }
716
717 static int getstereo_7133(struct saa7134_dev *dev)
718 {
719 int retval = V4L2_TUNER_SUB_MONO;
720 u32 value;
721
722 value = saa_readl(0x528 >> 2);
723 if (value & 0x20)
724 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
725 if (value & 0x40)
726 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
727 return retval;
728 }
729
730 static int mute_input_7133(struct saa7134_dev *dev)
731 {
732 u32 reg = 0;
733 u32 xbarin, xbarout;
734 int mask;
735 struct saa7134_input *in;
736
737 /* Hac 0506 route OSS sound simultanously */
738 xbarin = 0x03;
739 switch (dev->input->amux) {
740 case TV:
741 reg = 0x02;
742 xbarin = 0;
743 break;
744 case LINE1:
745 reg = 0x00;
746 break;
747 case LINE2:
748 case LINE2_LEFT:
749 reg = 0x09;
750 break;
751 }
752 saa_dsp_writel(dev, 0x464 >> 2, xbarin);
753 if (dev->ctl_mute) {
754 reg = 0x07;
755 xbarout = 0xbbbbbb;
756 } else
757 xbarout = 0xbbbb10;
758 saa_dsp_writel(dev, 0x46c >> 2, xbarout);
759
760 saa_writel(0x594 >> 2, reg);
761
762
763 /* switch gpio-connected external audio mux */
764 if (0 != card(dev).gpiomask) {
765 mask = card(dev).gpiomask;
766
767 if (card(dev).mute.name && dev->ctl_mute)
768 in = &card(dev).mute;
769 else
770 in = dev->input;
771
772 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, mask, mask);
773 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, mask, in->gpio);
774 saa7134_track_gpio(dev,in->name);
775 }
776
777 return 0;
778 }
779
780 static int tvaudio_thread_ddep(void *data)
781 {
782 struct saa7134_dev *dev = data;
783 u32 value, norms, clock;
784
785 daemonize("%s", dev->name);
786 allow_signal(SIGTERM);
787
788 clock = saa7134_boards[dev->board].audio_clock;
789 if (UNSET != audio_clock_override)
790 clock = audio_clock_override;
791 saa_writel(0x598 >> 2, clock);
792
793 /* unmute */
794 saa_dsp_writel(dev, 0x474 >> 2, 0x00);
795 saa_dsp_writel(dev, 0x450 >> 2, 0x00);
796
797 for (;;) {
798 tvaudio_sleep(dev,-1);
799 if (dev->thread.shutdown || signal_pending(current))
800 goto done;
801
802 restart:
803 dev->thread.scan1 = dev->thread.scan2;
804 dprintk("tvaudio thread scan start [%d]\n",dev->thread.scan1);
805
806 if (audio_ddep >= 0x04 && audio_ddep <= 0x0e) {
807 /* insmod option override */
808 norms = (audio_ddep << 2) | 0x01;
809 dprintk("ddep override: %s\n",stdres[audio_ddep]);
810 } else if (&card(dev).radio == dev->input) {
811 dprintk("FM Radio\n");
812 norms = (0x0f << 2) | 0x01;
813 } else {
814 /* (let chip) scan for sound carrier */
815 norms = 0;
816 if (dev->tvnorm->id & V4L2_STD_PAL) {
817 dprintk("PAL scan\n");
818 norms |= 0x2c; /* B/G + D/K + I */
819 }
820 if (dev->tvnorm->id & V4L2_STD_NTSC) {
821 dprintk("NTSC scan\n");
822 norms |= 0x40; /* M */
823 }
824 if (dev->tvnorm->id & V4L2_STD_SECAM) {
825 dprintk("SECAM scan\n");
826 norms |= 0x18; /* L + D/K */
827 }
828 if (0 == norms)
829 norms = 0x7c; /* all */
830 dprintk("scanning:%s%s%s%s%s\n",
831 (norms & 0x04) ? " B/G" : "",
832 (norms & 0x08) ? " D/K" : "",
833 (norms & 0x10) ? " L/L'" : "",
834 (norms & 0x20) ? " I" : "",
835 (norms & 0x40) ? " M" : "");
836 }
837
838 /* kick automatic standard detection */
839 saa_dsp_writel(dev, 0x454 >> 2, 0);
840 saa_dsp_writel(dev, 0x454 >> 2, norms | 0x80);
841
842 /* setup crossbars */
843 saa_dsp_writel(dev, 0x464 >> 2, 0x000000);
844 saa_dsp_writel(dev, 0x470 >> 2, 0x101010);
845
846 if (tvaudio_sleep(dev,3000))
847 goto restart;
848 value = saa_readl(0x528 >> 2) & 0xffffff;
849
850 dprintk("tvaudio thread status: 0x%x [%s%s%s]\n",
851 value, stdres[value & 0x1f],
852 (value & 0x000020) ? ",stereo" : "",
853 (value & 0x000040) ? ",dual" : "");
854 dprintk("detailed status: "
855 "%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s\n",
856 (value & 0x000080) ? " A2/EIAJ pilot tone " : "",
857 (value & 0x000100) ? " A2/EIAJ dual " : "",
858 (value & 0x000200) ? " A2/EIAJ stereo " : "",
859 (value & 0x000400) ? " A2/EIAJ noise mute " : "",
860
861 (value & 0x000800) ? " BTSC/FM radio pilot " : "",
862 (value & 0x001000) ? " SAP carrier " : "",
863 (value & 0x002000) ? " BTSC stereo noise mute " : "",
864 (value & 0x004000) ? " SAP noise mute " : "",
865 (value & 0x008000) ? " VDSP " : "",
866
867 (value & 0x010000) ? " NICST " : "",
868 (value & 0x020000) ? " NICDU " : "",
869 (value & 0x040000) ? " NICAM muted " : "",
870 (value & 0x080000) ? " NICAM reserve sound " : "",
871
872 (value & 0x100000) ? " init done " : "");
873 }
874
875 done:
876 complete_and_exit(&dev->thread.exit, 0);
877 return 0;
878 }
879
880 /* ------------------------------------------------------------------ */
881 /* common stuff + external entry points */
882
883 static void saa7134_enable_i2s(struct saa7134_dev *dev)
884 {
885 int i2s_format;
886
887 if (!card_is_empress(dev))
888 return;
889 i2s_format = (dev->input->amux == TV) ? 0x00 : 0x01;
890
891 /* enable I2S audio output for the mpeg encoder */
892 saa_writeb(SAA7134_I2S_OUTPUT_SELECT, 0x80);
893 saa_writeb(SAA7134_I2S_OUTPUT_FORMAT, i2s_format);
894 saa_writeb(SAA7134_I2S_OUTPUT_LEVEL, 0x0F);
895 saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x01);
896 }
897
898 int saa7134_tvaudio_rx2mode(u32 rx)
899 {
900 u32 mode;
901
902 mode = V4L2_TUNER_MODE_MONO;
903 if (rx & V4L2_TUNER_SUB_STEREO)
904 mode = V4L2_TUNER_MODE_STEREO;
905 else if (rx & V4L2_TUNER_SUB_LANG1)
906 mode = V4L2_TUNER_MODE_LANG1;
907 else if (rx & V4L2_TUNER_SUB_LANG2)
908 mode = V4L2_TUNER_MODE_LANG2;
909 return mode;
910 }
911
912 void saa7134_tvaudio_setmute(struct saa7134_dev *dev)
913 {
914 switch (dev->pci->device) {
915 case PCI_DEVICE_ID_PHILIPS_SAA7130:
916 case PCI_DEVICE_ID_PHILIPS_SAA7134:
917 mute_input_7134(dev);
918 break;
919 case PCI_DEVICE_ID_PHILIPS_SAA7133:
920 case PCI_DEVICE_ID_PHILIPS_SAA7135:
921 mute_input_7133(dev);
922 break;
923 }
924 }
925
926 void saa7134_tvaudio_setinput(struct saa7134_dev *dev,
927 struct saa7134_input *in)
928 {
929 dev->input = in;
930 switch (dev->pci->device) {
931 case PCI_DEVICE_ID_PHILIPS_SAA7130:
932 case PCI_DEVICE_ID_PHILIPS_SAA7134:
933 mute_input_7134(dev);
934 break;
935 case PCI_DEVICE_ID_PHILIPS_SAA7133:
936 case PCI_DEVICE_ID_PHILIPS_SAA7135:
937 mute_input_7133(dev);
938 break;
939 }
940 saa7134_enable_i2s(dev);
941 }
942
943 void saa7134_tvaudio_setvolume(struct saa7134_dev *dev, int level)
944 {
945 switch (dev->pci->device) {
946 case PCI_DEVICE_ID_PHILIPS_SAA7134:
947 saa_writeb(SAA7134_CHANNEL1_LEVEL, level & 0x1f);
948 saa_writeb(SAA7134_CHANNEL2_LEVEL, level & 0x1f);
949 saa_writeb(SAA7134_NICAM_LEVEL_ADJUST, level & 0x1f);
950 break;
951 }
952 }
953
954 int saa7134_tvaudio_getstereo(struct saa7134_dev *dev)
955 {
956 int retval = V4L2_TUNER_SUB_MONO;
957
958 switch (dev->pci->device) {
959 case PCI_DEVICE_ID_PHILIPS_SAA7134:
960 if (dev->tvaudio)
961 retval = tvaudio_getstereo(dev,dev->tvaudio);
962 break;
963 case PCI_DEVICE_ID_PHILIPS_SAA7133:
964 case PCI_DEVICE_ID_PHILIPS_SAA7135:
965 retval = getstereo_7133(dev);
966 break;
967 }
968 return retval;
969 }
970
971 int saa7134_tvaudio_init2(struct saa7134_dev *dev)
972 {
973 DECLARE_MUTEX_LOCKED(sem);
974 int (*my_thread)(void *data) = NULL;
975
976 switch (dev->pci->device) {
977 case PCI_DEVICE_ID_PHILIPS_SAA7134:
978 my_thread = tvaudio_thread;
979 break;
980 case PCI_DEVICE_ID_PHILIPS_SAA7133:
981 case PCI_DEVICE_ID_PHILIPS_SAA7135:
982 my_thread = tvaudio_thread_ddep;
983 break;
984 }
985
986 dev->thread.pid = -1;
987 if (my_thread) {
988 /* start tvaudio thread */
989 init_waitqueue_head(&dev->thread.wq);
990 init_completion(&dev->thread.exit);
991 dev->thread.pid = kernel_thread(my_thread,dev,0);
992 if (dev->thread.pid < 0)
993 printk(KERN_WARNING "%s: kernel_thread() failed\n",
994 dev->name);
995 saa7134_tvaudio_do_scan(dev);
996 }
997
998 saa7134_enable_i2s(dev);
999 return 0;
1000 }
1001
1002 int saa7134_tvaudio_fini(struct saa7134_dev *dev)
1003 {
1004 /* shutdown tvaudio thread */
1005 if (dev->thread.pid >= 0) {
1006 dev->thread.shutdown = 1;
1007 wake_up_interruptible(&dev->thread.wq);
1008 wait_for_completion(&dev->thread.exit);
1009 }
1010 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, 0x00); /* LINE1 */
1011 return 0;
1012 }
1013
1014 int saa7134_tvaudio_do_scan(struct saa7134_dev *dev)
1015 {
1016 if (dev->thread.pid >= 0) {
1017 dev->thread.mode = UNSET;
1018 dev->thread.scan2++;
1019 wake_up_interruptible(&dev->thread.wq);
1020 } else {
1021 dev->automute = 0;
1022 saa7134_tvaudio_setmute(dev);
1023 }
1024 return 0;
1025 }
1026
1027 EXPORT_SYMBOL(saa_dsp_writel);
1028
1029 /* ----------------------------------------------------------- */
1030 /*
1031 * Local variables:
1032 * c-basic-offset: 8
1033 * End:
1034 */
1035