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PM / sleep: Asynchronous threads for suspend_noirq
[linux/fpc-iii.git] / drivers / media / pci / saa7134 / saa7134-tvaudio.c
blob0f34e09d98dc72c0b51c8a4ebdbc0933f72d313e
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 (!(dev->tvnorm->id & scan->std)) {
336 value = 0;
337 dprintk("skipping %d.%03d MHz [%4s]\n",
338 scan->carr / 1000, scan->carr % 1000, scan->name);
339 return 0;
340 }
341
342 if (audio_debug > 1) {
343 int i;
344 dprintk("debug %d:",scan->carr);
345 for (i = -150; i <= 150; i += 30) {
346 tvaudio_setcarrier(dev,scan->carr+i,scan->carr+i);
347 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
348 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
349 return -1;
350 value = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
351 if (0 == i)
352 printk(" # %6d # ",value >> 16);
353 else
354 printk(" %6d",value >> 16);
355 }
356 printk("\n");
357 }
358
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))
362 return -1;
363 left = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
364
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))
368 return -1;
369 right = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
370
371 left >>= 16;
372 right >>= 16;
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);
377 return value;
378 }
379
380
381 static int tvaudio_getstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio)
382 {
383 __u32 idp, nicam, nicam_status;
384 int retval = -1;
385
386 switch (audio->mode) {
387 case TVAUDIO_FM_MONO:
388 return V4L2_TUNER_SUB_MONO;
389 case TVAUDIO_FM_K_STEREO:
390 case TVAUDIO_FM_BG_STEREO:
391 idp = (saa_readb(SAA7134_IDENT_SIF) & 0xe0) >> 5;
392 dprintk("getstereo: fm/stereo: idp=0x%x\n",idp);
393 if (0x03 == (idp & 0x03))
394 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
395 else if (0x05 == (idp & 0x05))
396 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
397 else if (0x01 == (idp & 0x01))
398 retval = V4L2_TUNER_SUB_MONO;
399 break;
400 case TVAUDIO_FM_SAT_STEREO:
401 /* not implemented (yet) */
402 break;
403 case TVAUDIO_NICAM_FM:
404 case TVAUDIO_NICAM_AM:
405 nicam = saa_readb(SAA7134_AUDIO_STATUS);
406 dprintk("getstereo: nicam=0x%x\n",nicam);
407 if (nicam & 0x1) {
408 nicam_status = saa_readb(SAA7134_NICAM_STATUS);
409 dprintk("getstereo: nicam_status=0x%x\n", nicam_status);
410
411 switch (nicam_status & 0x03) {
412 case 0x01:
413 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
414 break;
415 case 0x02:
416 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
417 break;
418 default:
419 retval = V4L2_TUNER_SUB_MONO;
420 }
421 } else {
422 /* No nicam detected */
423 }
424 break;
425 }
426 if (retval != -1)
427 dprintk("found audio subchannels:%s%s%s%s\n",
428 (retval & V4L2_TUNER_SUB_MONO) ? " mono" : "",
429 (retval & V4L2_TUNER_SUB_STEREO) ? " stereo" : "",
430 (retval & V4L2_TUNER_SUB_LANG1) ? " lang1" : "",
431 (retval & V4L2_TUNER_SUB_LANG2) ? " lang2" : "");
432 return retval;
433 }
434
435 static int tvaudio_setstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio,
436 u32 mode)
437 {
438 static char *name[] = {
439 [ V4L2_TUNER_MODE_MONO ] = "mono",
440 [ V4L2_TUNER_MODE_STEREO ] = "stereo",
441 [ V4L2_TUNER_MODE_LANG1 ] = "lang1",
442 [ V4L2_TUNER_MODE_LANG2 ] = "lang2",
443 [ V4L2_TUNER_MODE_LANG1_LANG2 ] = "lang1+lang2",
444 };
445 static u32 fm[] = {
446 [ V4L2_TUNER_MODE_MONO ] = 0x00, /* ch1 */
447 [ V4L2_TUNER_MODE_STEREO ] = 0x80, /* auto */
448 [ V4L2_TUNER_MODE_LANG1 ] = 0x00, /* ch1 */
449 [ V4L2_TUNER_MODE_LANG2 ] = 0x01, /* ch2 */
450 [ V4L2_TUNER_MODE_LANG1_LANG2 ] = 0x80, /* auto */
451 };
452 u32 reg;
453
454 switch (audio->mode) {
455 case TVAUDIO_FM_MONO:
456 /* nothing to do ... */
457 break;
458 case TVAUDIO_FM_K_STEREO:
459 case TVAUDIO_FM_BG_STEREO:
460 case TVAUDIO_NICAM_AM:
461 case TVAUDIO_NICAM_FM:
462 dprintk("setstereo [fm] => %s\n",
463 name[ mode % ARRAY_SIZE(name) ]);
464 reg = fm[ mode % ARRAY_SIZE(fm) ];
465 saa_writeb(SAA7134_FM_DEMATRIX, reg);
466 break;
467 case TVAUDIO_FM_SAT_STEREO:
468 /* Not implemented */
469 break;
470 }
471 return 0;
472 }
473
474 static int tvaudio_thread(void *data)
475 {
476 struct saa7134_dev *dev = data;
477 int carr_vals[ARRAY_SIZE(mainscan)];
478 unsigned int i, audio, nscan;
479 int max1,max2,carrier,rx,mode,lastmode,default_carrier;
480
481 set_freezable();
482
483 for (;;) {
484 tvaudio_sleep(dev,-1);
485 if (kthread_should_stop())
486 goto done;
487
488 restart:
489 try_to_freeze();
490
491 dev->thread.scan1 = dev->thread.scan2;
492 dprintk("tvaudio thread scan start [%d]\n",dev->thread.scan1);
493 dev->tvaudio = NULL;
494
495 saa_writeb(SAA7134_MONITOR_SELECT, 0xa0);
496 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
497
498 if (dev->ctl_automute)
499 dev->automute = 1;
500
501 mute_input_7134(dev);
502
503 /* give the tuner some time */
504 if (tvaudio_sleep(dev,SCAN_INITIAL_DELAY))
505 goto restart;
506
507 max1 = 0;
508 max2 = 0;
509 nscan = 0;
510 carrier = 0;
511 default_carrier = 0;
512 for (i = 0; i < ARRAY_SIZE(mainscan); i++) {
513 if (!(dev->tvnorm->id & mainscan[i].std))
514 continue;
515 if (!default_carrier)
516 default_carrier = mainscan[i].carr;
517 nscan++;
518 }
519
520 if (1 == nscan) {
521 /* only one candidate -- skip scan ;) */
522 dprintk("only one main carrier candidate - skipping scan\n");
523 max1 = 12345;
524 carrier = default_carrier;
525 } else {
526 /* scan for the main carrier */
527 saa_writeb(SAA7134_MONITOR_SELECT,0x00);
528 tvaudio_setmode(dev,&tvaudio[0],NULL);
529 for (i = 0; i < ARRAY_SIZE(mainscan); i++) {
530 carr_vals[i] = tvaudio_checkcarrier(dev, mainscan+i);
531 if (dev->thread.scan1 != dev->thread.scan2)
532 goto restart;
533 }
534 for (max1 = 0, max2 = 0, i = 0; i < ARRAY_SIZE(mainscan); i++) {
535 if (max1 < carr_vals[i]) {
536 max2 = max1;
537 max1 = carr_vals[i];
538 carrier = mainscan[i].carr;
539 } else if (max2 < carr_vals[i]) {
540 max2 = carr_vals[i];
541 }
542 }
543 }
544
545 if (0 != carrier && max1 > 2000 && max1 > max2*3) {
546 /* found good carrier */
547 dprintk("found %s main sound carrier @ %d.%03d MHz [%d/%d]\n",
548 dev->tvnorm->name, carrier/1000, carrier%1000,
549 max1, max2);
550 dev->last_carrier = carrier;
551 dev->automute = 0;
552
553 } else if (0 != dev->last_carrier) {
554 /* no carrier -- try last detected one as fallback */
555 carrier = dev->last_carrier;
556 dprintk("audio carrier scan failed, "
557 "using %d.%03d MHz [last detected]\n",
558 carrier/1000, carrier%1000);
559 dev->automute = 1;
560
561 } else {
562 /* no carrier + no fallback -- use default */
563 carrier = default_carrier;
564 dprintk("audio carrier scan failed, "
565 "using %d.%03d MHz [default]\n",
566 carrier/1000, carrier%1000);
567 dev->automute = 1;
568 }
569 tvaudio_setcarrier(dev,carrier,carrier);
570 saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x00);
571 saa7134_tvaudio_setmute(dev);
572 /* find the exact tv audio norm */
573 for (audio = UNSET, i = 0; i < TVAUDIO; i++) {
574 if (dev->tvnorm->id != UNSET &&
575 !(dev->tvnorm->id & tvaudio[i].std))
576 continue;
577 if (tvaudio[i].carr1 != carrier)
578 continue;
579 /* Note: at least the primary carrier is right here */
580 if (UNSET == audio)
581 audio = i;
582 tvaudio_setmode(dev,&tvaudio[i],"trying");
583 if (tvaudio_sleep(dev,SCAN_SUBCARRIER_DELAY))
584 goto restart;
585 if (-1 != tvaudio_getstereo(dev,&tvaudio[i])) {
586 audio = i;
587 break;
588 }
589 }
590 saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x30);
591 if (UNSET == audio)
592 continue;
593 tvaudio_setmode(dev,&tvaudio[audio],"using");
594
595 tvaudio_setstereo(dev,&tvaudio[audio],V4L2_TUNER_MODE_MONO);
596 dev->tvaudio = &tvaudio[audio];
597
598 lastmode = 42;
599 for (;;) {
600
601 try_to_freeze();
602
603 if (tvaudio_sleep(dev,5000))
604 goto restart;
605 if (kthread_should_stop())
606 break;
607 if (UNSET == dev->thread.mode) {
608 rx = tvaudio_getstereo(dev, &tvaudio[audio]);
609 mode = saa7134_tvaudio_rx2mode(rx);
610 } else {
611 mode = dev->thread.mode;
612 }
613 if (lastmode != mode) {
614 tvaudio_setstereo(dev,&tvaudio[audio],mode);
615 lastmode = mode;
616 }
617 }
618 }
619
620 done:
621 dev->thread.stopped = 1;
622 return 0;
623 }
624
625 /* ------------------------------------------------------------------ */
626 /* saa7133 / saa7135 code */
627
628 static char *stdres[0x20] = {
629 [0x00] = "no standard detected",
630 [0x01] = "B/G (in progress)",
631 [0x02] = "D/K (in progress)",
632 [0x03] = "M (in progress)",
633
634 [0x04] = "B/G A2",
635 [0x05] = "B/G NICAM",
636 [0x06] = "D/K A2 (1)",
637 [0x07] = "D/K A2 (2)",
638 [0x08] = "D/K A2 (3)",
639 [0x09] = "D/K NICAM",
640 [0x0a] = "L NICAM",
641 [0x0b] = "I NICAM",
642
643 [0x0c] = "M Korea",
644 [0x0d] = "M BTSC ",
645 [0x0e] = "M EIAJ",
646
647 [0x0f] = "FM radio / IF 10.7 / 50 deemp",
648 [0x10] = "FM radio / IF 10.7 / 75 deemp",
649 [0x11] = "FM radio / IF sel / 50 deemp",
650 [0x12] = "FM radio / IF sel / 75 deemp",
651
652 [0x13 ... 0x1e ] = "unknown",
653 [0x1f] = "??? [in progress]",
654 };
655
656 #define DSP_RETRY 32
657 #define DSP_DELAY 16
658 #define SAA7135_DSP_RWCLEAR_RERR 1
659
660 static inline int saa_dsp_reset_error_bit(struct saa7134_dev *dev)
661 {
662 int state = saa_readb(SAA7135_DSP_RWSTATE);
663 if (unlikely(state & SAA7135_DSP_RWSTATE_ERR)) {
664 d2printk("%s: resetting error bit\n", dev->name);
665 saa_writeb(SAA7135_DSP_RWCLEAR, SAA7135_DSP_RWCLEAR_RERR);
666 }
667 return 0;
668 }
669
670 static inline int saa_dsp_wait_bit(struct saa7134_dev *dev, int bit)
671 {
672 int state, count = DSP_RETRY;
673
674 state = saa_readb(SAA7135_DSP_RWSTATE);
675 if (unlikely(state & SAA7135_DSP_RWSTATE_ERR)) {
676 printk(KERN_WARNING "%s: dsp access error\n", dev->name);
677 saa_dsp_reset_error_bit(dev);
678 return -EIO;
679 }
680 while (0 == (state & bit)) {
681 if (unlikely(0 == count)) {
682 printk("%s: dsp access wait timeout [bit=%s]\n",
683 dev->name,
684 (bit & SAA7135_DSP_RWSTATE_WRR) ? "WRR" :
685 (bit & SAA7135_DSP_RWSTATE_RDB) ? "RDB" :
686 (bit & SAA7135_DSP_RWSTATE_IDA) ? "IDA" :
687 "???");
688 return -EIO;
689 }
690 saa_wait(DSP_DELAY);
691 state = saa_readb(SAA7135_DSP_RWSTATE);
692 count--;
693 }
694 return 0;
695 }
696
697
698 int saa_dsp_writel(struct saa7134_dev *dev, int reg, u32 value)
699 {
700 int err;
701
702 d2printk("dsp write reg 0x%x = 0x%06x\n",reg<<2,value);
703 err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR);
704 if (err < 0)
705 return err;
706 saa_writel(reg,value);
707 err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR);
708 if (err < 0)
709 return err;
710 return 0;
711 }
712
713 static int getstereo_7133(struct saa7134_dev *dev)
714 {
715 int retval = V4L2_TUNER_SUB_MONO;
716 u32 value;
717
718 value = saa_readl(0x528 >> 2);
719 if (value & 0x20)
720 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
721 if (value & 0x40)
722 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
723 return retval;
724 }
725
726 static int mute_input_7133(struct saa7134_dev *dev)
727 {
728 u32 reg = 0;
729 u32 xbarin, xbarout;
730 int mask;
731 struct saa7134_input *in;
732
733 xbarin = 0x03;
734 switch (dev->input->amux) {
735 case TV:
736 reg = 0x02;
737 xbarin = 0;
738 break;
739 case LINE1:
740 reg = 0x00;
741 break;
742 case LINE2:
743 case LINE2_LEFT:
744 reg = 0x09;
745 break;
746 }
747 saa_dsp_writel(dev, 0x464 >> 2, xbarin);
748 if (dev->ctl_mute) {
749 reg = 0x07;
750 xbarout = 0xbbbbbb;
751 } else
752 xbarout = 0xbbbb10;
753 saa_dsp_writel(dev, 0x46c >> 2, xbarout);
754
755 saa_writel(0x594 >> 2, reg);
756
757
758 /* switch gpio-connected external audio mux */
759 if (0 != card(dev).gpiomask) {
760 mask = card(dev).gpiomask;
761
762 if (card(dev).mute.name && dev->ctl_mute)
763 in = &card(dev).mute;
764 else
765 in = dev->input;
766
767 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, mask, mask);
768 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, mask, in->gpio);
769 saa7134_track_gpio(dev,in->name);
770 }
771
772 return 0;
773 }
774
775 static int tvaudio_thread_ddep(void *data)
776 {
777 struct saa7134_dev *dev = data;
778 u32 value, norms;
779
780 set_freezable();
781 for (;;) {
782 tvaudio_sleep(dev,-1);
783 if (kthread_should_stop())
784 goto done;
785 restart:
786 try_to_freeze();
787
788 dev->thread.scan1 = dev->thread.scan2;
789 dprintk("tvaudio thread scan start [%d]\n",dev->thread.scan1);
790
791 if (audio_ddep >= 0x04 && audio_ddep <= 0x0e) {
792 /* insmod option override */
793 norms = (audio_ddep << 2) | 0x01;
794 dprintk("ddep override: %s\n",stdres[audio_ddep]);
795 } else if (&card(dev).radio == dev->input) {
796 dprintk("FM Radio\n");
797 if (dev->tuner_type == TUNER_PHILIPS_TDA8290) {
798 norms = (0x11 << 2) | 0x01;
799 /* set IF frequency to 5.5 MHz */
800 saa_dsp_writel(dev, 0x42c >> 2, 0x729555);
801 } else {
802 norms = (0x0f << 2) | 0x01;
803 }
804 } else {
805 /* (let chip) scan for sound carrier */
806 norms = 0;
807 if (dev->tvnorm->id & (V4L2_STD_B | V4L2_STD_GH))
808 norms |= 0x04;
809 if (dev->tvnorm->id & V4L2_STD_PAL_I)
810 norms |= 0x20;
811 if (dev->tvnorm->id & V4L2_STD_DK)
812 norms |= 0x08;
813 if (dev->tvnorm->id & V4L2_STD_MN)
814 norms |= 0x40;
815 if (dev->tvnorm->id & (V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC))
816 norms |= 0x10;
817 if (0 == norms)
818 norms = 0x7c; /* all */
819 dprintk("scanning:%s%s%s%s%s\n",
820 (norms & 0x04) ? " B/G" : "",
821 (norms & 0x08) ? " D/K" : "",
822 (norms & 0x10) ? " L/L'" : "",
823 (norms & 0x20) ? " I" : "",
824 (norms & 0x40) ? " M" : "");
825 }
826
827 /* kick automatic standard detection */
828 saa_dsp_writel(dev, 0x454 >> 2, 0);
829 saa_dsp_writel(dev, 0x454 >> 2, norms | 0x80);
830
831 /* setup crossbars */
832 saa_dsp_writel(dev, 0x464 >> 2, 0x000000);
833 saa_dsp_writel(dev, 0x470 >> 2, 0x101010);
834
835 if (tvaudio_sleep(dev,3000))
836 goto restart;
837 value = saa_readl(0x528 >> 2) & 0xffffff;
838
839 dprintk("tvaudio thread status: 0x%x [%s%s%s]\n",
840 value, stdres[value & 0x1f],
841 (value & 0x000020) ? ",stereo" : "",
842 (value & 0x000040) ? ",dual" : "");
843 dprintk("detailed status: "
844 "%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s\n",
845 (value & 0x000080) ? " A2/EIAJ pilot tone " : "",
846 (value & 0x000100) ? " A2/EIAJ dual " : "",
847 (value & 0x000200) ? " A2/EIAJ stereo " : "",
848 (value & 0x000400) ? " A2/EIAJ noise mute " : "",
849
850 (value & 0x000800) ? " BTSC/FM radio pilot " : "",
851 (value & 0x001000) ? " SAP carrier " : "",
852 (value & 0x002000) ? " BTSC stereo noise mute " : "",
853 (value & 0x004000) ? " SAP noise mute " : "",
854 (value & 0x008000) ? " VDSP " : "",
855
856 (value & 0x010000) ? " NICST " : "",
857 (value & 0x020000) ? " NICDU " : "",
858 (value & 0x040000) ? " NICAM muted " : "",
859 (value & 0x080000) ? " NICAM reserve sound " : "",
860
861 (value & 0x100000) ? " init done " : "");
862 }
863
864 done:
865 dev->thread.stopped = 1;
866 return 0;
867 }
868
869 /* ------------------------------------------------------------------ */
870 /* common stuff + external entry points */
871
872 void saa7134_enable_i2s(struct saa7134_dev *dev)
873 {
874 int i2s_format;
875
876 if (!card_is_empress(dev))
877 return;
878
879 if (dev->pci->device == PCI_DEVICE_ID_PHILIPS_SAA7130)
880 return;
881
882 /* configure GPIO for out */
883 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, 0x0E000000, 0x00000000);
884
885 switch (dev->pci->device) {
886 case PCI_DEVICE_ID_PHILIPS_SAA7133:
887 case PCI_DEVICE_ID_PHILIPS_SAA7135:
888 /* Set I2S format (SONY)  */
889 saa_writeb(SAA7133_I2S_AUDIO_CONTROL, 0x00);
890 /* Start I2S */
891 saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x11);
892 break;
893
894 case PCI_DEVICE_ID_PHILIPS_SAA7134:
895 i2s_format = (dev->input->amux == TV) ? 0x00 : 0x01;
896
897 /* enable I2S audio output for the mpeg encoder */
898 saa_writeb(SAA7134_I2S_OUTPUT_SELECT, 0x80);
899 saa_writeb(SAA7134_I2S_OUTPUT_FORMAT, i2s_format);
900 saa_writeb(SAA7134_I2S_OUTPUT_LEVEL, 0x0F);
901 saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x01);
902
903 default:
904 break;
905 }
906 }
907
908 int saa7134_tvaudio_rx2mode(u32 rx)
909 {
910 u32 mode;
911
912 mode = V4L2_TUNER_MODE_MONO;
913 if (rx & V4L2_TUNER_SUB_STEREO)
914 mode = V4L2_TUNER_MODE_STEREO;
915 else if (rx & V4L2_TUNER_SUB_LANG1)
916 mode = V4L2_TUNER_MODE_LANG1;
917 else if (rx & V4L2_TUNER_SUB_LANG2)
918 mode = V4L2_TUNER_MODE_LANG2;
919 return mode;
920 }
921
922 void saa7134_tvaudio_setmute(struct saa7134_dev *dev)
923 {
924 switch (dev->pci->device) {
925 case PCI_DEVICE_ID_PHILIPS_SAA7130:
926 case PCI_DEVICE_ID_PHILIPS_SAA7134:
927 mute_input_7134(dev);
928 break;
929 case PCI_DEVICE_ID_PHILIPS_SAA7133:
930 case PCI_DEVICE_ID_PHILIPS_SAA7135:
931 mute_input_7133(dev);
932 break;
933 }
934 }
935
936 void saa7134_tvaudio_setinput(struct saa7134_dev *dev,
937 struct saa7134_input *in)
938 {
939 dev->input = in;
940 switch (dev->pci->device) {
941 case PCI_DEVICE_ID_PHILIPS_SAA7130:
942 case PCI_DEVICE_ID_PHILIPS_SAA7134:
943 mute_input_7134(dev);
944 break;
945 case PCI_DEVICE_ID_PHILIPS_SAA7133:
946 case PCI_DEVICE_ID_PHILIPS_SAA7135:
947 mute_input_7133(dev);
948 break;
949 }
950 saa7134_enable_i2s(dev);
951 }
952
953 void saa7134_tvaudio_setvolume(struct saa7134_dev *dev, int level)
954 {
955 switch (dev->pci->device) {
956 case PCI_DEVICE_ID_PHILIPS_SAA7134:
957 saa_writeb(SAA7134_CHANNEL1_LEVEL, level & 0x1f);
958 saa_writeb(SAA7134_CHANNEL2_LEVEL, level & 0x1f);
959 saa_writeb(SAA7134_NICAM_LEVEL_ADJUST, level & 0x1f);
960 break;
961 }
962 }
963
964 int saa7134_tvaudio_getstereo(struct saa7134_dev *dev)
965 {
966 int retval = V4L2_TUNER_SUB_MONO;
967
968 switch (dev->pci->device) {
969 case PCI_DEVICE_ID_PHILIPS_SAA7134:
970 if (dev->tvaudio)
971 retval = tvaudio_getstereo(dev,dev->tvaudio);
972 break;
973 case PCI_DEVICE_ID_PHILIPS_SAA7133:
974 case PCI_DEVICE_ID_PHILIPS_SAA7135:
975 retval = getstereo_7133(dev);
976 break;
977 }
978 return retval;
979 }
980
981 void saa7134_tvaudio_init(struct saa7134_dev *dev)
982 {
983 int clock = saa7134_boards[dev->board].audio_clock;
984
985 if (UNSET != audio_clock_override)
986 clock = audio_clock_override;
987
988 switch (dev->pci->device) {
989 case PCI_DEVICE_ID_PHILIPS_SAA7134:
990 /* init all audio registers */
991 saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x00);
992 if (need_resched())
993 schedule();
994 else
995 udelay(10);
996
997 saa_writeb(SAA7134_AUDIO_CLOCK0, clock & 0xff);
998 saa_writeb(SAA7134_AUDIO_CLOCK1, (clock >> 8) & 0xff);
999 saa_writeb(SAA7134_AUDIO_CLOCK2, (clock >> 16) & 0xff);
1000 /* frame locked audio is mandatory for NICAM */
1001 saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x01);
1002 saa_writeb(SAA7134_NICAM_ERROR_LOW, 0x14);
1003 saa_writeb(SAA7134_NICAM_ERROR_HIGH, 0x50);
1004 break;
1005 case PCI_DEVICE_ID_PHILIPS_SAA7133:
1006 case PCI_DEVICE_ID_PHILIPS_SAA7135:
1007 saa_writel(0x598 >> 2, clock);
1008 saa_dsp_writel(dev, 0x474 >> 2, 0x00);
1009 saa_dsp_writel(dev, 0x450 >> 2, 0x00);
1010 }
1011 }
1012
1013 int saa7134_tvaudio_init2(struct saa7134_dev *dev)
1014 {
1015 int (*my_thread)(void *data) = NULL;
1016
1017 switch (dev->pci->device) {
1018 case PCI_DEVICE_ID_PHILIPS_SAA7134:
1019 my_thread = tvaudio_thread;
1020 break;
1021 case PCI_DEVICE_ID_PHILIPS_SAA7133:
1022 case PCI_DEVICE_ID_PHILIPS_SAA7135:
1023 my_thread = tvaudio_thread_ddep;
1024 break;
1025 }
1026
1027 dev->thread.thread = NULL;
1028 dev->thread.scan1 = dev->thread.scan2 = 0;
1029 if (my_thread) {
1030 saa7134_tvaudio_init(dev);
1031 /* start tvaudio thread */
1032 dev->thread.thread = kthread_run(my_thread, dev, "%s", dev->name);
1033 if (IS_ERR(dev->thread.thread)) {
1034 printk(KERN_WARNING "%s: kernel_thread() failed\n",
1035 dev->name);
1036 /* XXX: missing error handling here */
1037 }
1038 }
1039
1040 saa7134_enable_i2s(dev);
1041 return 0;
1042 }
1043
1044 int saa7134_tvaudio_close(struct saa7134_dev *dev)
1045 {
1046 dev->automute = 1;
1047 /* anything else to undo? */
1048 return 0;
1049 }
1050
1051 int saa7134_tvaudio_fini(struct saa7134_dev *dev)
1052 {
1053 /* shutdown tvaudio thread */
1054 if (dev->thread.thread && !dev->thread.stopped)
1055 kthread_stop(dev->thread.thread);
1056
1057 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, 0x00); /* LINE1 */
1058 return 0;
1059 }
1060
1061 int saa7134_tvaudio_do_scan(struct saa7134_dev *dev)
1062 {
1063 if (dev->input->amux != TV) {
1064 dprintk("sound IF not in use, skipping scan\n");
1065 dev->automute = 0;
1066 saa7134_tvaudio_setmute(dev);
1067 } else if (dev->thread.thread) {
1068 dev->thread.mode = UNSET;
1069 dev->thread.scan2++;
1070
1071 if (!dev->insuspend && !dev->thread.stopped)
1072 wake_up_process(dev->thread.thread);
1073 } else {
1074 dev->automute = 0;
1075 saa7134_tvaudio_setmute(dev);
1076 }
1077 return 0;
1078 }
1079
1080 EXPORT_SYMBOL(saa_dsp_writel);
1081 EXPORT_SYMBOL(saa7134_tvaudio_setmute);
1082
1083 /* ----------------------------------------------------------- */
1084 /*
1085 * Local variables:
1086 * c-basic-offset: 8
1087 * End:
1088 */
Linux with added FPC-III support