?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Staging: strip: delete the driver
[linux/fpc-iii.git] / drivers / media / video / saa7134 / saa7134-tvaudio.c
blob3e7d2fd1688f3b27b669e7e603bd76c04f6958c6
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/kernel.h>
27 #include <linux/kthread.h>
28 #include <linux/delay.h>
29 #include <linux/freezer.h>
30 #include <asm/div64.h>
31
32 #include "saa7134-reg.h"
33 #include "saa7134.h"
34
35 /* ------------------------------------------------------------------ */
36
37 static unsigned int audio_debug;
38 module_param(audio_debug, int, 0644);
39 MODULE_PARM_DESC(audio_debug,"enable debug messages [tv audio]");
40
41 static unsigned int audio_ddep;
42 module_param(audio_ddep, int, 0644);
43 MODULE_PARM_DESC(audio_ddep,"audio ddep overwrite");
44
45 static int audio_clock_override = UNSET;
46 module_param(audio_clock_override, int, 0644);
47
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])");
51
52 #define dprintk(fmt, arg...) if (audio_debug) \
53 printk(KERN_DEBUG "%s/audio: " fmt, dev->name , ## arg)
54 #define d2printk(fmt, arg...) if (audio_debug > 1) \
55 printk(KERN_DEBUG "%s/audio: " fmt, dev->name, ## arg)
56
57 #define print_regb(reg) printk("%s: reg 0x%03x [%-16s]: 0x%02x\n", \
58 dev->name,(SAA7134_##reg),(#reg),saa_readb((SAA7134_##reg)))
59
60 /* msecs */
61 #define SCAN_INITIAL_DELAY 1000
62 #define SCAN_SAMPLE_DELAY 200
63 #define SCAN_SUBCARRIER_DELAY 2000
64
65 /* ------------------------------------------------------------------ */
66 /* saa7134 code */
67
68 static struct mainscan {
69 char *name;
70 v4l2_std_id std;
71 int carr;
72 } mainscan[] = {
73 {
74 .name = "MN",
75 .std = V4L2_STD_MN,
76 .carr = 4500,
77 },{
78 .name = "BGH",
79 .std = V4L2_STD_B | V4L2_STD_GH,
80 .carr = 5500,
81 },{
82 .name = "I",
83 .std = V4L2_STD_PAL_I,
84 .carr = 6000,
85 },{
86 .name = "DKL",
87 .std = V4L2_STD_DK | V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC,
88 .carr = 6500,
89 }
90 };
91
92 static struct saa7134_tvaudio tvaudio[] = {
93 {
94 .name = "PAL-B/G FM-stereo",
95 .std = V4L2_STD_PAL_BG,
96 .mode = TVAUDIO_FM_BG_STEREO,
97 .carr1 = 5500,
98 .carr2 = 5742,
99 },{
100 .name = "PAL-D/K1 FM-stereo",
101 .std = V4L2_STD_PAL_DK,
102 .carr1 = 6500,
103 .carr2 = 6258,
104 .mode = TVAUDIO_FM_BG_STEREO,
105 },{
106 .name = "PAL-D/K2 FM-stereo",
107 .std = V4L2_STD_PAL_DK,
108 .carr1 = 6500,
109 .carr2 = 6742,
110 .mode = TVAUDIO_FM_BG_STEREO,
111 },{
112 .name = "PAL-D/K3 FM-stereo",
113 .std = V4L2_STD_PAL_DK,
114 .carr1 = 6500,
115 .carr2 = 5742,
116 .mode = TVAUDIO_FM_BG_STEREO,
117 },{
118 .name = "PAL-B/G NICAM",
119 .std = V4L2_STD_PAL_BG,
120 .carr1 = 5500,
121 .carr2 = 5850,
122 .mode = TVAUDIO_NICAM_FM,
123 },{
124 .name = "PAL-I NICAM",
125 .std = V4L2_STD_PAL_I,
126 .carr1 = 6000,
127 .carr2 = 6552,
128 .mode = TVAUDIO_NICAM_FM,
129 },{
130 .name = "PAL-D/K NICAM",
131 .std = V4L2_STD_PAL_DK,
132 .carr1 = 6500,
133 .carr2 = 5850,
134 .mode = TVAUDIO_NICAM_FM,
135 },{
136 .name = "SECAM-L NICAM",
137 .std = V4L2_STD_SECAM_L,
138 .carr1 = 6500,
139 .carr2 = 5850,
140 .mode = TVAUDIO_NICAM_AM,
141 },{
142 .name = "SECAM-D/K NICAM",
143 .std = V4L2_STD_SECAM_DK,
144 .carr1 = 6500,
145 .carr2 = 5850,
146 .mode = TVAUDIO_NICAM_FM,
147 },{
148 .name = "NTSC-A2 FM-stereo",
149 .std = V4L2_STD_NTSC,
150 .carr1 = 4500,
151 .carr2 = 4724,
152 .mode = TVAUDIO_FM_K_STEREO,
153 },{
154 .name = "NTSC-M",
155 .std = V4L2_STD_NTSC,
156 .carr1 = 4500,
157 .carr2 = -1,
158 .mode = TVAUDIO_FM_MONO,
159 }
160 };
161 #define TVAUDIO ARRAY_SIZE(tvaudio)
162
163 /* ------------------------------------------------------------------ */
164
165 static u32 tvaudio_carr2reg(u32 carrier)
166 {
167 u64 a = carrier;
168
169 a <<= 24;
170 do_div(a,12288);
171 return a;
172 }
173
174 static void tvaudio_setcarrier(struct saa7134_dev *dev,
175 int primary, int secondary)
176 {
177 if (-1 == secondary)
178 secondary = primary;
179 saa_writel(SAA7134_CARRIER1_FREQ0 >> 2, tvaudio_carr2reg(primary));
180 saa_writel(SAA7134_CARRIER2_FREQ0 >> 2, tvaudio_carr2reg(secondary));
181 }
182
183 #define SAA7134_MUTE_MASK 0xbb
184 #define SAA7134_MUTE_ANALOG 0x04
185 #define SAA7134_MUTE_I2S 0x40
186
187 static void mute_input_7134(struct saa7134_dev *dev)
188 {
189 unsigned int mute;
190 struct saa7134_input *in;
191 int ausel=0, ics=0, ocs=0;
192 int mask;
193
194 /* look what is to do ... */
195 in = dev->input;
196 mute = (dev->ctl_mute ||
197 (dev->automute && (&card(dev).radio) != in));
198 if (card(dev).mute.name) {
199 /*
200 * 7130 - we'll mute using some unconnected audio input
201 * 7134 - we'll probably should switch external mux with gpio
202 */
203 if (mute)
204 in = &card(dev).mute;
205 }
206
207 if (dev->hw_mute == mute &&
208 dev->hw_input == in && !dev->insuspend) {
209 dprintk("mute/input: nothing to do [mute=%d,input=%s]\n",
210 mute,in->name);
211 return;
212 }
213
214 dprintk("ctl_mute=%d automute=%d input=%s => mute=%d input=%s\n",
215 dev->ctl_mute,dev->automute,dev->input->name,mute,in->name);
216 dev->hw_mute = mute;
217 dev->hw_input = in;
218
219 if (PCI_DEVICE_ID_PHILIPS_SAA7134 == dev->pci->device)
220 /* 7134 mute */
221 saa_writeb(SAA7134_AUDIO_MUTE_CTRL, mute ?
222 SAA7134_MUTE_MASK |
223 SAA7134_MUTE_ANALOG |
224 SAA7134_MUTE_I2S :
225 SAA7134_MUTE_MASK);
226
227 /* switch internal audio mux */
228 switch (in->amux) {
229 case TV: ausel=0xc0; ics=0x00; ocs=0x02; break;
230 case LINE1: ausel=0x80; ics=0x00; ocs=0x00; break;
231 case LINE2: ausel=0x80; ics=0x08; ocs=0x01; break;
232 case LINE2_LEFT: ausel=0x80; ics=0x08; ocs=0x05; break;
233 }
234 saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, ausel);
235 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x08, ics);
236 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, ocs);
237 // for oss, we need to change the clock configuration
238 if (in->amux == TV)
239 saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x00);
240 else
241 saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x01);
242
243 /* switch gpio-connected external audio mux */
244 if (0 == card(dev).gpiomask)
245 return;
246
247 mask = card(dev).gpiomask;
248 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, mask, mask);
249 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, mask, in->gpio);
250 saa7134_track_gpio(dev,in->name);
251 }
252
253 static void tvaudio_setmode(struct saa7134_dev *dev,
254 struct saa7134_tvaudio *audio,
255 char *note)
256 {
257 int acpf, tweak = 0;
258
259 if (dev->tvnorm->id == V4L2_STD_NTSC) {
260 acpf = 0x19066;
261 } else {
262 acpf = 0x1e000;
263 }
264 if (audio_clock_tweak > -1024 && audio_clock_tweak < 1024)
265 tweak = audio_clock_tweak;
266
267 if (note)
268 dprintk("tvaudio_setmode: %s %s [%d.%03d/%d.%03d MHz] acpf=%d%+d\n",
269 note,audio->name,
270 audio->carr1 / 1000, audio->carr1 % 1000,
271 audio->carr2 / 1000, audio->carr2 % 1000,
272 acpf, tweak);
273
274 acpf += tweak;
275 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD0, (acpf & 0x0000ff) >> 0);
276 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD1, (acpf & 0x00ff00) >> 8);
277 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD2, (acpf & 0x030000) >> 16);
278 tvaudio_setcarrier(dev,audio->carr1,audio->carr2);
279
280 switch (audio->mode) {
281 case TVAUDIO_FM_MONO:
282 case TVAUDIO_FM_BG_STEREO:
283 saa_writeb(SAA7134_DEMODULATOR, 0x00);
284 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
285 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x22);
286 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
287 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa0);
288 break;
289 case TVAUDIO_FM_K_STEREO:
290 saa_writeb(SAA7134_DEMODULATOR, 0x00);
291 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x01);
292 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x22);
293 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
294 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa0);
295 break;
296 case TVAUDIO_NICAM_FM:
297 saa_writeb(SAA7134_DEMODULATOR, 0x10);
298 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
299 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x44);
300 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa1);
301 saa_writeb(SAA7134_NICAM_CONFIG, 0x00);
302 break;
303 case TVAUDIO_NICAM_AM:
304 saa_writeb(SAA7134_DEMODULATOR, 0x12);
305 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
306 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x44);
307 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa1);
308 saa_writeb(SAA7134_NICAM_CONFIG, 0x00);
309 break;
310 case TVAUDIO_FM_SAT_STEREO:
311 /* not implemented (yet) */
312 break;
313 }
314 }
315
316 static int tvaudio_sleep(struct saa7134_dev *dev, int timeout)
317 {
318 if (dev->thread.scan1 == dev->thread.scan2 &&
319 !kthread_should_stop()) {
320 if (timeout < 0) {
321 set_current_state(TASK_INTERRUPTIBLE);
322 schedule();
323 } else {
324 schedule_timeout_interruptible
325 (msecs_to_jiffies(timeout));
326 }
327 }
328 return dev->thread.scan1 != dev->thread.scan2;
329 }
330
331 static int tvaudio_checkcarrier(struct saa7134_dev *dev, struct mainscan *scan)
332 {
333 __s32 left,right,value;
334
335 if (audio_debug > 1) {
336 int i;
337 dprintk("debug %d:",scan->carr);
338 for (i = -150; i <= 150; i += 30) {
339 tvaudio_setcarrier(dev,scan->carr+i,scan->carr+i);
340 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
341 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
342 return -1;
343 value = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
344 if (0 == i)
345 printk(" # %6d # ",value >> 16);
346 else
347 printk(" %6d",value >> 16);
348 }
349 printk("\n");
350 }
351 if (dev->tvnorm->id & scan->std) {
352 tvaudio_setcarrier(dev,scan->carr-90,scan->carr-90);
353 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
354 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
355 return -1;
356 left = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
357
358 tvaudio_setcarrier(dev,scan->carr+90,scan->carr+90);
359 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
360 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
361 return -1;
362 right = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
363
364 left >>= 16;
365 right >>= 16;
366 value = left > right ? left - right : right - left;
367 dprintk("scanning %d.%03d MHz [%4s] => dc is %5d [%d/%d]\n",
368 scan->carr / 1000, scan->carr % 1000,
369 scan->name, value, left, right);
370 } else {
371 value = 0;
372 dprintk("skipping %d.%03d MHz [%4s]\n",
373 scan->carr / 1000, scan->carr % 1000, scan->name);
374 }
375 return value;
376 }
377
378
379 static int tvaudio_getstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio)
380 {
381 __u32 idp, nicam, nicam_status;
382 int retval = -1;
383
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 dprintk("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;
397 break;
398 case TVAUDIO_FM_SAT_STEREO:
399 /* not implemented (yet) */
400 break;
401 case TVAUDIO_NICAM_FM:
402 case TVAUDIO_NICAM_AM:
403 nicam = saa_readb(SAA7134_AUDIO_STATUS);
404 dprintk("getstereo: nicam=0x%x\n",nicam);
405 if (nicam & 0x1) {
406 nicam_status = saa_readb(SAA7134_NICAM_STATUS);
407 dprintk("getstereo: nicam_status=0x%x\n", nicam_status);
408
409 switch (nicam_status & 0x03) {
410 case 0x01:
411 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
412 break;
413 case 0x02:
414 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
415 break;
416 default:
417 retval = V4L2_TUNER_SUB_MONO;
418 }
419 } else {
420 /* No nicam detected */
421 }
422 break;
423 }
424 if (retval != -1)
425 dprintk("found audio subchannels:%s%s%s%s\n",
426 (retval & V4L2_TUNER_SUB_MONO) ? " mono" : "",
427 (retval & V4L2_TUNER_SUB_STEREO) ? " stereo" : "",
428 (retval & V4L2_TUNER_SUB_LANG1) ? " lang1" : "",
429 (retval & V4L2_TUNER_SUB_LANG2) ? " lang2" : "");
430 return retval;
431 }
432
433 static int tvaudio_setstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio,
434 u32 mode)
435 {
436 static char *name[] = {
437 [ V4L2_TUNER_MODE_MONO ] = "mono",
438 [ V4L2_TUNER_MODE_STEREO ] = "stereo",
439 [ V4L2_TUNER_MODE_LANG1 ] = "lang1",
440 [ V4L2_TUNER_MODE_LANG2 ] = "lang2",
441 [ V4L2_TUNER_MODE_LANG1_LANG2 ] = "lang1+lang2",
442 };
443 static u32 fm[] = {
444 [ V4L2_TUNER_MODE_MONO ] = 0x00, /* ch1 */
445 [ V4L2_TUNER_MODE_STEREO ] = 0x80, /* auto */
446 [ V4L2_TUNER_MODE_LANG1 ] = 0x00, /* ch1 */
447 [ V4L2_TUNER_MODE_LANG2 ] = 0x01, /* ch2 */
448 [ V4L2_TUNER_MODE_LANG1_LANG2 ] = 0x80, /* auto */
449 };
450 u32 reg;
451
452 switch (audio->mode) {
453 case TVAUDIO_FM_MONO:
454 /* nothing to do ... */
455 break;
456 case TVAUDIO_FM_K_STEREO:
457 case TVAUDIO_FM_BG_STEREO:
458 case TVAUDIO_NICAM_AM:
459 case TVAUDIO_NICAM_FM:
460 dprintk("setstereo [fm] => %s\n",
461 name[ mode % ARRAY_SIZE(name) ]);
462 reg = fm[ mode % ARRAY_SIZE(fm) ];
463 saa_writeb(SAA7134_FM_DEMATRIX, reg);
464 break;
465 case TVAUDIO_FM_SAT_STEREO:
466 /* Not implemented */
467 break;
468 }
469 return 0;
470 }
471
472 static int tvaudio_thread(void *data)
473 {
474 struct saa7134_dev *dev = data;
475 int carr_vals[ARRAY_SIZE(mainscan)];
476 unsigned int i, audio, nscan;
477 int max1,max2,carrier,rx,mode,lastmode,default_carrier;
478
479 set_freezable();
480
481 for (;;) {
482 tvaudio_sleep(dev,-1);
483 if (kthread_should_stop())
484 goto done;
485
486 restart:
487 try_to_freeze();
488
489 dev->thread.scan1 = dev->thread.scan2;
490 dprintk("tvaudio thread scan start [%d]\n",dev->thread.scan1);
491 dev->tvaudio = NULL;
492
493 saa_writeb(SAA7134_MONITOR_SELECT, 0xa0);
494 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
495
496 if (dev->ctl_automute)
497 dev->automute = 1;
498
499 mute_input_7134(dev);
500
501 /* give the tuner some time */
502 if (tvaudio_sleep(dev,SCAN_INITIAL_DELAY))
503 goto restart;
504
505 max1 = 0;
506 max2 = 0;
507 nscan = 0;
508 carrier = 0;
509 default_carrier = 0;
510 for (i = 0; i < ARRAY_SIZE(mainscan); i++) {
511 if (!(dev->tvnorm->id & mainscan[i].std))
512 continue;
513 if (!default_carrier)
514 default_carrier = mainscan[i].carr;
515 nscan++;
516 }
517
518 if (1 == nscan) {
519 /* only one candidate -- skip scan ;) */
520 dprintk("only one main carrier candidate - skipping scan\n");
521 max1 = 12345;
522 carrier = default_carrier;
523 } else {
524 /* scan for the main carrier */
525 saa_writeb(SAA7134_MONITOR_SELECT,0x00);
526 tvaudio_setmode(dev,&tvaudio[0],NULL);
527 for (i = 0; i < ARRAY_SIZE(mainscan); i++) {
528 carr_vals[i] = tvaudio_checkcarrier(dev, mainscan+i);
529 if (dev->thread.scan1 != dev->thread.scan2)
530 goto restart;
531 }
532 for (max1 = 0, max2 = 0, i = 0; i < ARRAY_SIZE(mainscan); i++) {
533 if (max1 < carr_vals[i]) {
534 max2 = max1;
535 max1 = carr_vals[i];
536 carrier = mainscan[i].carr;
537 } else if (max2 < carr_vals[i]) {
538 max2 = carr_vals[i];
539 }
540 }
541 }
542
543 if (0 != carrier && max1 > 2000 && max1 > max2*3) {
544 /* found good carrier */
545 dprintk("found %s main sound carrier @ %d.%03d MHz [%d/%d]\n",
546 dev->tvnorm->name, carrier/1000, carrier%1000,
547 max1, max2);
548 dev->last_carrier = carrier;
549
550 } else if (0 != dev->last_carrier) {
551 /* no carrier -- try last detected one as fallback */
552 carrier = dev->last_carrier;
553 dprintk(KERN_WARNING "%s/audio: audio carrier scan failed, "
554 "using %d.%03d MHz [last detected]\n",
555 dev->name, carrier/1000, carrier%1000);
556
557 } else {
558 /* no carrier + no fallback -- use default */
559 carrier = default_carrier;
560 dprintk(KERN_WARNING "%s/audio: audio carrier scan failed, "
561 "using %d.%03d MHz [default]\n",
562 dev->name, carrier/1000, carrier%1000);
563 }
564 tvaudio_setcarrier(dev,carrier,carrier);
565 dev->automute = 0;
566 saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x00);
567 saa7134_tvaudio_setmute(dev);
568 /* find the exact tv audio norm */
569 for (audio = UNSET, i = 0; i < TVAUDIO; i++) {
570 if (dev->tvnorm->id != UNSET &&
571 !(dev->tvnorm->id & tvaudio[i].std))
572 continue;
573 if (tvaudio[i].carr1 != carrier)
574 continue;
575 /* Note: at least the primary carrier is right here */
576 if (UNSET == audio)
577 audio = i;
578 tvaudio_setmode(dev,&tvaudio[i],"trying");
579 if (tvaudio_sleep(dev,SCAN_SUBCARRIER_DELAY))
580 goto restart;
581 if (-1 != tvaudio_getstereo(dev,&tvaudio[i])) {
582 audio = i;
583 break;
584 }
585 }
586 saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x30);
587 if (UNSET == audio)
588 continue;
589 tvaudio_setmode(dev,&tvaudio[audio],"using");
590
591 tvaudio_setstereo(dev,&tvaudio[audio],V4L2_TUNER_MODE_MONO);
592 dev->tvaudio = &tvaudio[audio];
593
594 lastmode = 42;
595 for (;;) {
596
597 try_to_freeze();
598
599 if (tvaudio_sleep(dev,5000))
600 goto restart;
601 if (kthread_should_stop())
602 break;
603 if (UNSET == dev->thread.mode) {
604 rx = tvaudio_getstereo(dev,&tvaudio[i]);
605 mode = saa7134_tvaudio_rx2mode(rx);
606 } else {
607 mode = dev->thread.mode;
608 }
609 if (lastmode != mode) {
610 tvaudio_setstereo(dev,&tvaudio[audio],mode);
611 lastmode = mode;
612 }
613 }
614 }
615
616 done:
617 dev->thread.stopped = 1;
618 return 0;
619 }
620
621 /* ------------------------------------------------------------------ */
622 /* saa7133 / saa7135 code */
623
624 static char *stdres[0x20] = {
625 [0x00] = "no standard detected",
626 [0x01] = "B/G (in progress)",
627 [0x02] = "D/K (in progress)",
628 [0x03] = "M (in progress)",
629
630 [0x04] = "B/G A2",
631 [0x05] = "B/G NICAM",
632 [0x06] = "D/K A2 (1)",
633 [0x07] = "D/K A2 (2)",
634 [0x08] = "D/K A2 (3)",
635 [0x09] = "D/K NICAM",
636 [0x0a] = "L NICAM",
637 [0x0b] = "I NICAM",
638
639 [0x0c] = "M Korea",
640 [0x0d] = "M BTSC ",
641 [0x0e] = "M EIAJ",
642
643 [0x0f] = "FM radio / IF 10.7 / 50 deemp",
644 [0x10] = "FM radio / IF 10.7 / 75 deemp",
645 [0x11] = "FM radio / IF sel / 50 deemp",
646 [0x12] = "FM radio / IF sel / 75 deemp",
647
648 [0x13 ... 0x1e ] = "unknown",
649 [0x1f] = "??? [in progress]",
650 };
651
652 #define DSP_RETRY 32
653 #define DSP_DELAY 16
654 #define SAA7135_DSP_RWCLEAR_RERR 1
655
656 static inline int saa_dsp_reset_error_bit(struct saa7134_dev *dev)
657 {
658 int state = saa_readb(SAA7135_DSP_RWSTATE);
659 if (unlikely(state & SAA7135_DSP_RWSTATE_ERR)) {
660 d2printk("%s: resetting error bit\n", dev->name);
661 saa_writeb(SAA7135_DSP_RWCLEAR, SAA7135_DSP_RWCLEAR_RERR);
662 }
663 return 0;
664 }
665
666 static inline int saa_dsp_wait_bit(struct saa7134_dev *dev, int bit)
667 {
668 int state, count = DSP_RETRY;
669
670 state = saa_readb(SAA7135_DSP_RWSTATE);
671 if (unlikely(state & SAA7135_DSP_RWSTATE_ERR)) {
672 printk(KERN_WARNING "%s: dsp access error\n", dev->name);
673 saa_dsp_reset_error_bit(dev);
674 return -EIO;
675 }
676 while (0 == (state & bit)) {
677 if (unlikely(0 == count)) {
678 printk("%s: dsp access wait timeout [bit=%s]\n",
679 dev->name,
680 (bit & SAA7135_DSP_RWSTATE_WRR) ? "WRR" :
681 (bit & SAA7135_DSP_RWSTATE_RDB) ? "RDB" :
682 (bit & SAA7135_DSP_RWSTATE_IDA) ? "IDA" :
683 "???");
684 return -EIO;
685 }
686 saa_wait(DSP_DELAY);
687 state = saa_readb(SAA7135_DSP_RWSTATE);
688 count--;
689 }
690 return 0;
691 }
692
693
694 int saa_dsp_writel(struct saa7134_dev *dev, int reg, u32 value)
695 {
696 int err;
697
698 d2printk("dsp write reg 0x%x = 0x%06x\n",reg<<2,value);
699 err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR);
700 if (err < 0)
701 return err;
702 saa_writel(reg,value);
703 err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR);
704 if (err < 0)
705 return err;
706 return 0;
707 }
708
709 static int getstereo_7133(struct saa7134_dev *dev)
710 {
711 int retval = V4L2_TUNER_SUB_MONO;
712 u32 value;
713
714 value = saa_readl(0x528 >> 2);
715 if (value & 0x20)
716 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
717 if (value & 0x40)
718 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
719 return retval;
720 }
721
722 static int mute_input_7133(struct saa7134_dev *dev)
723 {
724 u32 reg = 0;
725 u32 xbarin, xbarout;
726 int mask;
727 struct saa7134_input *in;
728
729 xbarin = 0x03;
730 switch (dev->input->amux) {
731 case TV:
732 reg = 0x02;
733 xbarin = 0;
734 break;
735 case LINE1:
736 reg = 0x00;
737 break;
738 case LINE2:
739 case LINE2_LEFT:
740 reg = 0x09;
741 break;
742 }
743 saa_dsp_writel(dev, 0x464 >> 2, xbarin);
744 if (dev->ctl_mute) {
745 reg = 0x07;
746 xbarout = 0xbbbbbb;
747 } else
748 xbarout = 0xbbbb10;
749 saa_dsp_writel(dev, 0x46c >> 2, xbarout);
750
751 saa_writel(0x594 >> 2, reg);
752
753
754 /* switch gpio-connected external audio mux */
755 if (0 != card(dev).gpiomask) {
756 mask = card(dev).gpiomask;
757
758 if (card(dev).mute.name && dev->ctl_mute)
759 in = &card(dev).mute;
760 else
761 in = dev->input;
762
763 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, mask, mask);
764 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, mask, in->gpio);
765 saa7134_track_gpio(dev,in->name);
766 }
767
768 return 0;
769 }
770
771 static int tvaudio_thread_ddep(void *data)
772 {
773 struct saa7134_dev *dev = data;
774 u32 value, norms;
775
776 set_freezable();
777 for (;;) {
778 tvaudio_sleep(dev,-1);
779 if (kthread_should_stop())
780 goto done;
781 restart:
782 try_to_freeze();
783
784 dev->thread.scan1 = dev->thread.scan2;
785 dprintk("tvaudio thread scan start [%d]\n",dev->thread.scan1);
786
787 if (audio_ddep >= 0x04 && audio_ddep <= 0x0e) {
788 /* insmod option override */
789 norms = (audio_ddep << 2) | 0x01;
790 dprintk("ddep override: %s\n",stdres[audio_ddep]);
791 } else if (&card(dev).radio == dev->input) {
792 dprintk("FM Radio\n");
793 if (dev->tuner_type == TUNER_PHILIPS_TDA8290) {
794 norms = (0x11 << 2) | 0x01;
795 saa_dsp_writel(dev, 0x42c >> 2, 0x729555);
796 } else {
797 norms = (0x0f << 2) | 0x01;
798 }
799 } else {
800 /* (let chip) scan for sound carrier */
801 norms = 0;
802 if (dev->tvnorm->id & (V4L2_STD_B | V4L2_STD_GH))
803 norms |= 0x04;
804 if (dev->tvnorm->id & V4L2_STD_PAL_I)
805 norms |= 0x20;
806 if (dev->tvnorm->id & V4L2_STD_DK)
807 norms |= 0x08;
808 if (dev->tvnorm->id & V4L2_STD_MN)
809 norms |= 0x40;
810 if (dev->tvnorm->id & (V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC))
811 norms |= 0x10;
812 if (0 == norms)
813 norms = 0x7c; /* all */
814 dprintk("scanning:%s%s%s%s%s\n",
815 (norms & 0x04) ? " B/G" : "",
816 (norms & 0x08) ? " D/K" : "",
817 (norms & 0x10) ? " L/L'" : "",
818 (norms & 0x20) ? " I" : "",
819 (norms & 0x40) ? " M" : "");
820 }
821
822 /* kick automatic standard detection */
823 saa_dsp_writel(dev, 0x454 >> 2, 0);
824 saa_dsp_writel(dev, 0x454 >> 2, norms | 0x80);
825
826 /* setup crossbars */
827 saa_dsp_writel(dev, 0x464 >> 2, 0x000000);
828 saa_dsp_writel(dev, 0x470 >> 2, 0x101010);
829
830 if (tvaudio_sleep(dev,3000))
831 goto restart;
832 value = saa_readl(0x528 >> 2) & 0xffffff;
833
834 dprintk("tvaudio thread status: 0x%x [%s%s%s]\n",
835 value, stdres[value & 0x1f],
836 (value & 0x000020) ? ",stereo" : "",
837 (value & 0x000040) ? ",dual" : "");
838 dprintk("detailed status: "
839 "%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s\n",
840 (value & 0x000080) ? " A2/EIAJ pilot tone " : "",
841 (value & 0x000100) ? " A2/EIAJ dual " : "",
842 (value & 0x000200) ? " A2/EIAJ stereo " : "",
843 (value & 0x000400) ? " A2/EIAJ noise mute " : "",
844
845 (value & 0x000800) ? " BTSC/FM radio pilot " : "",
846 (value & 0x001000) ? " SAP carrier " : "",
847 (value & 0x002000) ? " BTSC stereo noise mute " : "",
848 (value & 0x004000) ? " SAP noise mute " : "",
849 (value & 0x008000) ? " VDSP " : "",
850
851 (value & 0x010000) ? " NICST " : "",
852 (value & 0x020000) ? " NICDU " : "",
853 (value & 0x040000) ? " NICAM muted " : "",
854 (value & 0x080000) ? " NICAM reserve sound " : "",
855
856 (value & 0x100000) ? " init done " : "");
857 }
858
859 done:
860 dev->thread.stopped = 1;
861 return 0;
862 }
863
864 /* ------------------------------------------------------------------ */
865 /* common stuff + external entry points */
866
867 void saa7134_enable_i2s(struct saa7134_dev *dev)
868 {
869 int i2s_format;
870
871 if (!card_is_empress(dev))
872 return;
873
874 if (dev->pci->device == PCI_DEVICE_ID_PHILIPS_SAA7130)
875 return;
876
877 /* configure GPIO for out */
878 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, 0x0E000000, 0x00000000);
879
880 switch (dev->pci->device) {
881 case PCI_DEVICE_ID_PHILIPS_SAA7133:
882 case PCI_DEVICE_ID_PHILIPS_SAA7135:
883 /* Set I2S format (SONY)  */
884 saa_writeb(SAA7133_I2S_AUDIO_CONTROL, 0x00);
885 /* Start I2S */
886 saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x11);
887 break;
888
889 case PCI_DEVICE_ID_PHILIPS_SAA7134:
890 i2s_format = (dev->input->amux == TV) ? 0x00 : 0x01;
891
892 /* enable I2S audio output for the mpeg encoder */
893 saa_writeb(SAA7134_I2S_OUTPUT_SELECT, 0x80);
894 saa_writeb(SAA7134_I2S_OUTPUT_FORMAT, i2s_format);
895 saa_writeb(SAA7134_I2S_OUTPUT_LEVEL, 0x0F);
896 saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x01);
897
898 default:
899 break;
900 }
901 }
902
903 int saa7134_tvaudio_rx2mode(u32 rx)
904 {
905 u32 mode;
906
907 mode = V4L2_TUNER_MODE_MONO;
908 if (rx & V4L2_TUNER_SUB_STEREO)
909 mode = V4L2_TUNER_MODE_STEREO;
910 else if (rx & V4L2_TUNER_SUB_LANG1)
911 mode = V4L2_TUNER_MODE_LANG1;
912 else if (rx & V4L2_TUNER_SUB_LANG2)
913 mode = V4L2_TUNER_MODE_LANG2;
914 return mode;
915 }
916
917 void saa7134_tvaudio_setmute(struct saa7134_dev *dev)
918 {
919 switch (dev->pci->device) {
920 case PCI_DEVICE_ID_PHILIPS_SAA7130:
921 case PCI_DEVICE_ID_PHILIPS_SAA7134:
922 mute_input_7134(dev);
923 break;
924 case PCI_DEVICE_ID_PHILIPS_SAA7133:
925 case PCI_DEVICE_ID_PHILIPS_SAA7135:
926 mute_input_7133(dev);
927 break;
928 }
929 }
930
931 void saa7134_tvaudio_setinput(struct saa7134_dev *dev,
932 struct saa7134_input *in)
933 {
934 dev->input = in;
935 switch (dev->pci->device) {
936 case PCI_DEVICE_ID_PHILIPS_SAA7130:
937 case PCI_DEVICE_ID_PHILIPS_SAA7134:
938 mute_input_7134(dev);
939 break;
940 case PCI_DEVICE_ID_PHILIPS_SAA7133:
941 case PCI_DEVICE_ID_PHILIPS_SAA7135:
942 mute_input_7133(dev);
943 break;
944 }
945 saa7134_enable_i2s(dev);
946 }
947
948 void saa7134_tvaudio_setvolume(struct saa7134_dev *dev, int level)
949 {
950 switch (dev->pci->device) {
951 case PCI_DEVICE_ID_PHILIPS_SAA7134:
952 saa_writeb(SAA7134_CHANNEL1_LEVEL, level & 0x1f);
953 saa_writeb(SAA7134_CHANNEL2_LEVEL, level & 0x1f);
954 saa_writeb(SAA7134_NICAM_LEVEL_ADJUST, level & 0x1f);
955 break;
956 }
957 }
958
959 int saa7134_tvaudio_getstereo(struct saa7134_dev *dev)
960 {
961 int retval = V4L2_TUNER_SUB_MONO;
962
963 switch (dev->pci->device) {
964 case PCI_DEVICE_ID_PHILIPS_SAA7134:
965 if (dev->tvaudio)
966 retval = tvaudio_getstereo(dev,dev->tvaudio);
967 break;
968 case PCI_DEVICE_ID_PHILIPS_SAA7133:
969 case PCI_DEVICE_ID_PHILIPS_SAA7135:
970 retval = getstereo_7133(dev);
971 break;
972 }
973 return retval;
974 }
975
976 void saa7134_tvaudio_init(struct saa7134_dev *dev)
977 {
978 int clock = saa7134_boards[dev->board].audio_clock;
979
980 if (UNSET != audio_clock_override)
981 clock = audio_clock_override;
982
983 switch (dev->pci->device) {
984 case PCI_DEVICE_ID_PHILIPS_SAA7134:
985 /* init all audio registers */
986 saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x00);
987 if (need_resched())
988 schedule();
989 else
990 udelay(10);
991
992 saa_writeb(SAA7134_AUDIO_CLOCK0, clock & 0xff);
993 saa_writeb(SAA7134_AUDIO_CLOCK1, (clock >> 8) & 0xff);
994 saa_writeb(SAA7134_AUDIO_CLOCK2, (clock >> 16) & 0xff);
995 /* frame locked audio is mandatory for NICAM */
996 saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x01);
997 saa_writeb(SAA7134_NICAM_ERROR_LOW, 0x14);
998 saa_writeb(SAA7134_NICAM_ERROR_HIGH, 0x50);
999 break;
1000 case PCI_DEVICE_ID_PHILIPS_SAA7133:
1001 case PCI_DEVICE_ID_PHILIPS_SAA7135:
1002 saa_writel(0x598 >> 2, clock);
1003 saa_dsp_writel(dev, 0x474 >> 2, 0x00);
1004 saa_dsp_writel(dev, 0x450 >> 2, 0x00);
1005 }
1006 }
1007
1008 int saa7134_tvaudio_init2(struct saa7134_dev *dev)
1009 {
1010 int (*my_thread)(void *data) = NULL;
1011
1012 switch (dev->pci->device) {
1013 case PCI_DEVICE_ID_PHILIPS_SAA7134:
1014 my_thread = tvaudio_thread;
1015 break;
1016 case PCI_DEVICE_ID_PHILIPS_SAA7133:
1017 case PCI_DEVICE_ID_PHILIPS_SAA7135:
1018 my_thread = tvaudio_thread_ddep;
1019 break;
1020 }
1021
1022 dev->thread.thread = NULL;
1023 if (my_thread) {
1024 saa7134_tvaudio_init(dev);
1025 /* start tvaudio thread */
1026 dev->thread.thread = kthread_run(my_thread, dev, "%s", dev->name);
1027 if (IS_ERR(dev->thread.thread)) {
1028 printk(KERN_WARNING "%s: kernel_thread() failed\n",
1029 dev->name);
1030 /* XXX: missing error handling here */
1031 }
1032 saa7134_tvaudio_do_scan(dev);
1033 }
1034
1035 saa7134_enable_i2s(dev);
1036 return 0;
1037 }
1038
1039 int saa7134_tvaudio_fini(struct saa7134_dev *dev)
1040 {
1041 /* shutdown tvaudio thread */
1042 if (dev->thread.thread && !dev->thread.stopped)
1043 kthread_stop(dev->thread.thread);
1044
1045 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, 0x00); /* LINE1 */
1046 return 0;
1047 }
1048
1049 int saa7134_tvaudio_do_scan(struct saa7134_dev *dev)
1050 {
1051 if (dev->input->amux != TV) {
1052 dprintk("sound IF not in use, skipping scan\n");
1053 dev->automute = 0;
1054 saa7134_tvaudio_setmute(dev);
1055 } else if (dev->thread.thread) {
1056 dev->thread.mode = UNSET;
1057 dev->thread.scan2++;
1058
1059 if (!dev->insuspend && !dev->thread.stopped)
1060 wake_up_process(dev->thread.thread);
1061 } else {
1062 dev->automute = 0;
1063 saa7134_tvaudio_setmute(dev);
1064 }
1065 return 0;
1066 }
1067
1068 EXPORT_SYMBOL(saa_dsp_writel);
1069 EXPORT_SYMBOL(saa7134_tvaudio_setmute);
1070
1071 /* ----------------------------------------------------------- */
1072 /*
1073 * Local variables:
1074 * c-basic-offset: 8
1075 * End:
1076 */
Linux with added FPC-III support