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[mirror_ubuntu-artful-kernel.git] / drivers / media / pci / saa7134 / saa7134-tvaudio.c
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 "saa7134.h"
24 #include "saa7134-reg.h"
25
26 #include <linux/init.h>
27 #include <linux/list.h>
28 #include <linux/module.h>
29 #include <linux/kernel.h>
30 #include <linux/kthread.h>
31 #include <linux/delay.h>
32 #include <linux/freezer.h>
33 #include <asm/div64.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 audio_dbg(level, fmt, arg...) do { \
53 if (audio_debug >= level) \
54 printk(KERN_DEBUG pr_fmt("audio: " fmt), ## arg); \
55 } while (0)
56
57 /* msecs */
58 #define SCAN_INITIAL_DELAY 1000
59 #define SCAN_SAMPLE_DELAY 200
60 #define SCAN_SUBCARRIER_DELAY 2000
61
62 /* ------------------------------------------------------------------ */
63 /* saa7134 code */
64
65 static struct mainscan {
66 char *name;
67 v4l2_std_id std;
68 int carr;
69 } mainscan[] = {
70 {
71 .name = "MN",
72 .std = V4L2_STD_MN,
73 .carr = 4500,
74 },{
75 .name = "BGH",
76 .std = V4L2_STD_B | V4L2_STD_GH,
77 .carr = 5500,
78 },{
79 .name = "I",
80 .std = V4L2_STD_PAL_I,
81 .carr = 6000,
82 },{
83 .name = "DKL",
84 .std = V4L2_STD_DK | V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC,
85 .carr = 6500,
86 }
87 };
88
89 static struct saa7134_tvaudio tvaudio[] = {
90 {
91 .name = "PAL-B/G FM-stereo",
92 .std = V4L2_STD_PAL_BG,
93 .mode = TVAUDIO_FM_BG_STEREO,
94 .carr1 = 5500,
95 .carr2 = 5742,
96 },{
97 .name = "PAL-D/K1 FM-stereo",
98 .std = V4L2_STD_PAL_DK,
99 .carr1 = 6500,
100 .carr2 = 6258,
101 .mode = TVAUDIO_FM_BG_STEREO,
102 },{
103 .name = "PAL-D/K2 FM-stereo",
104 .std = V4L2_STD_PAL_DK,
105 .carr1 = 6500,
106 .carr2 = 6742,
107 .mode = TVAUDIO_FM_BG_STEREO,
108 },{
109 .name = "PAL-D/K3 FM-stereo",
110 .std = V4L2_STD_PAL_DK,
111 .carr1 = 6500,
112 .carr2 = 5742,
113 .mode = TVAUDIO_FM_BG_STEREO,
114 },{
115 .name = "PAL-B/G NICAM",
116 .std = V4L2_STD_PAL_BG,
117 .carr1 = 5500,
118 .carr2 = 5850,
119 .mode = TVAUDIO_NICAM_FM,
120 },{
121 .name = "PAL-I NICAM",
122 .std = V4L2_STD_PAL_I,
123 .carr1 = 6000,
124 .carr2 = 6552,
125 .mode = TVAUDIO_NICAM_FM,
126 },{
127 .name = "PAL-D/K NICAM",
128 .std = V4L2_STD_PAL_DK,
129 .carr1 = 6500,
130 .carr2 = 5850,
131 .mode = TVAUDIO_NICAM_FM,
132 },{
133 .name = "SECAM-L NICAM",
134 .std = V4L2_STD_SECAM_L,
135 .carr1 = 6500,
136 .carr2 = 5850,
137 .mode = TVAUDIO_NICAM_AM,
138 },{
139 .name = "SECAM-D/K NICAM",
140 .std = V4L2_STD_SECAM_DK,
141 .carr1 = 6500,
142 .carr2 = 5850,
143 .mode = TVAUDIO_NICAM_FM,
144 },{
145 .name = "NTSC-A2 FM-stereo",
146 .std = V4L2_STD_NTSC,
147 .carr1 = 4500,
148 .carr2 = 4724,
149 .mode = TVAUDIO_FM_K_STEREO,
150 },{
151 .name = "NTSC-M",
152 .std = V4L2_STD_NTSC,
153 .carr1 = 4500,
154 .carr2 = -1,
155 .mode = TVAUDIO_FM_MONO,
156 }
157 };
158 #define TVAUDIO ARRAY_SIZE(tvaudio)
159
160 /* ------------------------------------------------------------------ */
161
162 static u32 tvaudio_carr2reg(u32 carrier)
163 {
164 u64 a = carrier;
165
166 a <<= 24;
167 do_div(a,12288);
168 return a;
169 }
170
171 static void tvaudio_setcarrier(struct saa7134_dev *dev,
172 int primary, int secondary)
173 {
174 if (-1 == secondary)
175 secondary = primary;
176 saa_writel(SAA7134_CARRIER1_FREQ0 >> 2, tvaudio_carr2reg(primary));
177 saa_writel(SAA7134_CARRIER2_FREQ0 >> 2, tvaudio_carr2reg(secondary));
178 }
179
180 #define SAA7134_MUTE_MASK 0xbb
181 #define SAA7134_MUTE_ANALOG 0x04
182 #define SAA7134_MUTE_I2S 0x40
183
184 static void mute_input_7134(struct saa7134_dev *dev)
185 {
186 unsigned int mute;
187 struct saa7134_input *in;
188 int ausel=0, ics=0, ocs=0;
189 int mask;
190
191 /* look what is to do ... */
192 in = dev->input;
193 mute = (dev->ctl_mute ||
194 (dev->automute && (&card(dev).radio) != in));
195 if (card(dev).mute.type) {
196 /*
197 * 7130 - we'll mute using some unconnected audio input
198 * 7134 - we'll probably should switch external mux with gpio
199 */
200 if (mute)
201 in = &card(dev).mute;
202 }
203
204 if (dev->hw_mute == mute &&
205 dev->hw_input == in && !dev->insuspend) {
206 audio_dbg(1, "mute/input: nothing to do [mute=%d,input=%s]\n",
207 mute, saa7134_input_name[in->type]);
208 return;
209 }
210
211 audio_dbg(1, "ctl_mute=%d automute=%d input=%s => mute=%d input=%s\n",
212 dev->ctl_mute, dev->automute,
213 saa7134_input_name[dev->input->type], mute,
214 saa7134_input_name[in->type]);
215 dev->hw_mute = mute;
216 dev->hw_input = in;
217
218 if (PCI_DEVICE_ID_PHILIPS_SAA7134 == dev->pci->device)
219 /* 7134 mute */
220 saa_writeb(SAA7134_AUDIO_MUTE_CTRL, mute ?
221 SAA7134_MUTE_MASK |
222 SAA7134_MUTE_ANALOG |
223 SAA7134_MUTE_I2S :
224 SAA7134_MUTE_MASK);
225
226 /* switch internal audio mux */
227 switch (in->amux) {
228 case TV: ausel=0xc0; ics=0x00; ocs=0x02; break;
229 case LINE1: ausel=0x80; ics=0x00; ocs=0x00; break;
230 case LINE2: ausel=0x80; ics=0x08; ocs=0x01; break;
231 case LINE2_LEFT: ausel=0x80; ics=0x08; ocs=0x05; break;
232 }
233 saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, ausel);
234 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x08, ics);
235 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, ocs);
236 // for oss, we need to change the clock configuration
237 if (in->amux == TV)
238 saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x00);
239 else
240 saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x01);
241
242 /* switch gpio-connected external audio mux */
243 if (0 == card(dev).gpiomask)
244 return;
245
246 mask = card(dev).gpiomask;
247 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, mask, mask);
248 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, mask, in->gpio);
249 saa7134_track_gpio(dev, saa7134_input_name[in->type]);
250 }
251
252 static void tvaudio_setmode(struct saa7134_dev *dev,
253 struct saa7134_tvaudio *audio,
254 char *note)
255 {
256 int acpf, tweak = 0;
257
258 if (dev->tvnorm->id == V4L2_STD_NTSC) {
259 acpf = 0x19066;
260 } else {
261 acpf = 0x1e000;
262 }
263 if (audio_clock_tweak > -1024 && audio_clock_tweak < 1024)
264 tweak = audio_clock_tweak;
265
266 if (note)
267 audio_dbg(1, "tvaudio_setmode: %s %s [%d.%03d/%d.%03d MHz] acpf=%d%+d\n",
268 note, audio->name,
269 audio->carr1 / 1000, audio->carr1 % 1000,
270 audio->carr2 / 1000, audio->carr2 % 1000,
271 acpf, tweak);
272
273 acpf += tweak;
274 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD0, (acpf & 0x0000ff) >> 0);
275 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD1, (acpf & 0x00ff00) >> 8);
276 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD2, (acpf & 0x030000) >> 16);
277 tvaudio_setcarrier(dev,audio->carr1,audio->carr2);
278
279 switch (audio->mode) {
280 case TVAUDIO_FM_MONO:
281 case TVAUDIO_FM_BG_STEREO:
282 saa_writeb(SAA7134_DEMODULATOR, 0x00);
283 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
284 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x22);
285 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
286 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa0);
287 break;
288 case TVAUDIO_FM_K_STEREO:
289 saa_writeb(SAA7134_DEMODULATOR, 0x00);
290 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x01);
291 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x22);
292 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
293 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa0);
294 break;
295 case TVAUDIO_NICAM_FM:
296 saa_writeb(SAA7134_DEMODULATOR, 0x10);
297 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
298 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x44);
299 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa1);
300 saa_writeb(SAA7134_NICAM_CONFIG, 0x00);
301 break;
302 case TVAUDIO_NICAM_AM:
303 saa_writeb(SAA7134_DEMODULATOR, 0x12);
304 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
305 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x44);
306 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa1);
307 saa_writeb(SAA7134_NICAM_CONFIG, 0x00);
308 break;
309 case TVAUDIO_FM_SAT_STEREO:
310 /* not implemented (yet) */
311 break;
312 }
313 }
314
315 static int tvaudio_sleep(struct saa7134_dev *dev, int timeout)
316 {
317 if (dev->thread.scan1 == dev->thread.scan2 &&
318 !kthread_should_stop()) {
319 if (timeout < 0) {
320 set_current_state(TASK_INTERRUPTIBLE);
321 schedule();
322 } else {
323 schedule_timeout_interruptible
324 (msecs_to_jiffies(timeout));
325 }
326 }
327 return dev->thread.scan1 != dev->thread.scan2;
328 }
329
330 static int tvaudio_checkcarrier(struct saa7134_dev *dev, struct mainscan *scan)
331 {
332 __s32 left,right,value;
333
334 if (!(dev->tvnorm->id & scan->std)) {
335 value = 0;
336 audio_dbg(1, "skipping %d.%03d MHz [%4s]\n",
337 scan->carr / 1000, scan->carr % 1000, scan->name);
338 return 0;
339 }
340
341 if (audio_debug > 1) {
342 int i;
343 audio_dbg(1, "debug %d:", scan->carr);
344 for (i = -150; i <= 150; i += 30) {
345 tvaudio_setcarrier(dev,scan->carr+i,scan->carr+i);
346 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
347 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
348 return -1;
349 value = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
350 if (0 == i)
351 pr_cont(" # %6d # ", value >> 16);
352 else
353 pr_cont(" %6d", value >> 16);
354 }
355 pr_cont("\n");
356 }
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 left = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
363
364 tvaudio_setcarrier(dev,scan->carr+90,scan->carr+90);
365 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
366 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
367 return -1;
368 right = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
369
370 left >>= 16;
371 right >>= 16;
372 value = left > right ? left - right : right - left;
373 audio_dbg(1, "scanning %d.%03d MHz [%4s] => dc is %5d [%d/%d]\n",
374 scan->carr / 1000, scan->carr % 1000,
375 scan->name, value, left, right);
376 return value;
377 }
378
379
380 static int tvaudio_getstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio)
381 {
382 __u32 idp, nicam, nicam_status;
383 int retval = -1;
384
385 switch (audio->mode) {
386 case TVAUDIO_FM_MONO:
387 return V4L2_TUNER_SUB_MONO;
388 case TVAUDIO_FM_K_STEREO:
389 case TVAUDIO_FM_BG_STEREO:
390 idp = (saa_readb(SAA7134_IDENT_SIF) & 0xe0) >> 5;
391 audio_dbg(1, "getstereo: fm/stereo: idp=0x%x\n", idp);
392 if (0x03 == (idp & 0x03))
393 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
394 else if (0x05 == (idp & 0x05))
395 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
396 else if (0x01 == (idp & 0x01))
397 retval = V4L2_TUNER_SUB_MONO;
398 break;
399 case TVAUDIO_FM_SAT_STEREO:
400 /* not implemented (yet) */
401 break;
402 case TVAUDIO_NICAM_FM:
403 case TVAUDIO_NICAM_AM:
404 nicam = saa_readb(SAA7134_AUDIO_STATUS);
405 audio_dbg(1, "getstereo: nicam=0x%x\n", nicam);
406 if (nicam & 0x1) {
407 nicam_status = saa_readb(SAA7134_NICAM_STATUS);
408 audio_dbg(1, "getstereo: nicam_status=0x%x\n",
409 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 audio_dbg(1, "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 audio_dbg(1, "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 audio_dbg(1, "tvaudio thread scan start [%d]\n",
493 dev->thread.scan1);
494 dev->tvaudio = NULL;
495
496 saa_writeb(SAA7134_MONITOR_SELECT, 0xa0);
497 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
498
499 if (dev->ctl_automute)
500 dev->automute = 1;
501
502 mute_input_7134(dev);
503
504 /* give the tuner some time */
505 if (tvaudio_sleep(dev,SCAN_INITIAL_DELAY))
506 goto restart;
507
508 max1 = 0;
509 max2 = 0;
510 nscan = 0;
511 carrier = 0;
512 default_carrier = 0;
513 for (i = 0; i < ARRAY_SIZE(mainscan); i++) {
514 if (!(dev->tvnorm->id & mainscan[i].std))
515 continue;
516 if (!default_carrier)
517 default_carrier = mainscan[i].carr;
518 nscan++;
519 }
520
521 if (1 == nscan) {
522 /* only one candidate -- skip scan ;) */
523 audio_dbg(1, "only one main carrier candidate - skipping scan\n");
524 max1 = 12345;
525 carrier = default_carrier;
526 } else {
527 /* scan for the main carrier */
528 saa_writeb(SAA7134_MONITOR_SELECT,0x00);
529 tvaudio_setmode(dev,&tvaudio[0],NULL);
530 for (i = 0; i < ARRAY_SIZE(mainscan); i++) {
531 carr_vals[i] = tvaudio_checkcarrier(dev, mainscan+i);
532 if (dev->thread.scan1 != dev->thread.scan2)
533 goto restart;
534 }
535 for (max1 = 0, max2 = 0, i = 0; i < ARRAY_SIZE(mainscan); i++) {
536 if (max1 < carr_vals[i]) {
537 max2 = max1;
538 max1 = carr_vals[i];
539 carrier = mainscan[i].carr;
540 } else if (max2 < carr_vals[i]) {
541 max2 = carr_vals[i];
542 }
543 }
544 }
545
546 if (0 != carrier && max1 > 2000 && max1 > max2*3) {
547 /* found good carrier */
548 audio_dbg(1, "found %s main sound carrier @ %d.%03d MHz [%d/%d]\n",
549 dev->tvnorm->name, carrier/1000, carrier%1000,
550 max1, max2);
551 dev->last_carrier = carrier;
552 dev->automute = 0;
553
554 } else if (0 != dev->last_carrier) {
555 /* no carrier -- try last detected one as fallback */
556 carrier = dev->last_carrier;
557 audio_dbg(1, "audio carrier scan failed, 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 audio_dbg(1, "audio carrier scan failed, using %d.%03d MHz [default]\n",
565 carrier/1000, carrier%1000);
566 dev->automute = 1;
567 }
568 tvaudio_setcarrier(dev,carrier,carrier);
569 saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x00);
570 saa7134_tvaudio_setmute(dev);
571 /* find the exact tv audio norm */
572 for (audio = UNSET, i = 0; i < TVAUDIO; i++) {
573 if (dev->tvnorm->id != UNSET &&
574 !(dev->tvnorm->id & tvaudio[i].std))
575 continue;
576 if (tvaudio[i].carr1 != carrier)
577 continue;
578 /* Note: at least the primary carrier is right here */
579 if (UNSET == audio)
580 audio = i;
581 tvaudio_setmode(dev,&tvaudio[i],"trying");
582 if (tvaudio_sleep(dev,SCAN_SUBCARRIER_DELAY))
583 goto restart;
584 if (-1 != tvaudio_getstereo(dev,&tvaudio[i])) {
585 audio = i;
586 break;
587 }
588 }
589 saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x30);
590 if (UNSET == audio)
591 continue;
592 tvaudio_setmode(dev,&tvaudio[audio],"using");
593
594 tvaudio_setstereo(dev,&tvaudio[audio],V4L2_TUNER_MODE_MONO);
595 dev->tvaudio = &tvaudio[audio];
596
597 lastmode = 42;
598 for (;;) {
599
600 try_to_freeze();
601
602 if (tvaudio_sleep(dev,5000))
603 goto restart;
604 if (kthread_should_stop())
605 break;
606 if (UNSET == dev->thread.mode) {
607 rx = tvaudio_getstereo(dev, &tvaudio[audio]);
608 mode = saa7134_tvaudio_rx2mode(rx);
609 } else {
610 mode = dev->thread.mode;
611 }
612 if (lastmode != mode) {
613 tvaudio_setstereo(dev,&tvaudio[audio],mode);
614 lastmode = mode;
615 }
616 }
617 }
618
619 done:
620 dev->thread.stopped = 1;
621 return 0;
622 }
623
624 /* ------------------------------------------------------------------ */
625 /* saa7133 / saa7135 code */
626
627 static char *stdres[0x20] = {
628 [0x00] = "no standard detected",
629 [0x01] = "B/G (in progress)",
630 [0x02] = "D/K (in progress)",
631 [0x03] = "M (in progress)",
632
633 [0x04] = "B/G A2",
634 [0x05] = "B/G NICAM",
635 [0x06] = "D/K A2 (1)",
636 [0x07] = "D/K A2 (2)",
637 [0x08] = "D/K A2 (3)",
638 [0x09] = "D/K NICAM",
639 [0x0a] = "L NICAM",
640 [0x0b] = "I NICAM",
641
642 [0x0c] = "M Korea",
643 [0x0d] = "M BTSC ",
644 [0x0e] = "M EIAJ",
645
646 [0x0f] = "FM radio / IF 10.7 / 50 deemp",
647 [0x10] = "FM radio / IF 10.7 / 75 deemp",
648 [0x11] = "FM radio / IF sel / 50 deemp",
649 [0x12] = "FM radio / IF sel / 75 deemp",
650
651 [0x13 ... 0x1e ] = "unknown",
652 [0x1f] = "??? [in progress]",
653 };
654
655 #define DSP_RETRY 32
656 #define DSP_DELAY 16
657 #define SAA7135_DSP_RWCLEAR_RERR 1
658
659 static inline int saa_dsp_reset_error_bit(struct saa7134_dev *dev)
660 {
661 int state = saa_readb(SAA7135_DSP_RWSTATE);
662 if (unlikely(state & SAA7135_DSP_RWSTATE_ERR)) {
663 audio_dbg(2, "%s: resetting error bit\n", dev->name);
664 saa_writeb(SAA7135_DSP_RWCLEAR, SAA7135_DSP_RWCLEAR_RERR);
665 }
666 return 0;
667 }
668
669 static inline int saa_dsp_wait_bit(struct saa7134_dev *dev, int bit)
670 {
671 int state, count = DSP_RETRY;
672
673 state = saa_readb(SAA7135_DSP_RWSTATE);
674 if (unlikely(state & SAA7135_DSP_RWSTATE_ERR)) {
675 pr_warn("%s: dsp access error\n", dev->name);
676 saa_dsp_reset_error_bit(dev);
677 return -EIO;
678 }
679 while (0 == (state & bit)) {
680 if (unlikely(0 == count)) {
681 pr_err("dsp access wait timeout [bit=%s]\n",
682 (bit & SAA7135_DSP_RWSTATE_WRR) ? "WRR" :
683 (bit & SAA7135_DSP_RWSTATE_RDB) ? "RDB" :
684 (bit & SAA7135_DSP_RWSTATE_IDA) ? "IDA" :
685 "???");
686 return -EIO;
687 }
688 saa_wait(DSP_DELAY);
689 state = saa_readb(SAA7135_DSP_RWSTATE);
690 count--;
691 }
692 return 0;
693 }
694
695
696 int saa_dsp_writel(struct saa7134_dev *dev, int reg, u32 value)
697 {
698 int err;
699
700 audio_dbg(2, "dsp write reg 0x%x = 0x%06x\n", reg << 2, value);
701 err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR);
702 if (err < 0)
703 return err;
704 saa_writel(reg,value);
705 err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR);
706 if (err < 0)
707 return err;
708 return 0;
709 }
710
711 static int getstereo_7133(struct saa7134_dev *dev)
712 {
713 int retval = V4L2_TUNER_SUB_MONO;
714 u32 value;
715
716 value = saa_readl(0x528 >> 2);
717 if (value & 0x20)
718 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
719 if (value & 0x40)
720 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
721 return retval;
722 }
723
724 static int mute_input_7133(struct saa7134_dev *dev)
725 {
726 u32 reg = 0;
727 u32 xbarin, xbarout;
728 int mask;
729 struct saa7134_input *in;
730
731 xbarin = 0x03;
732 switch (dev->input->amux) {
733 case TV:
734 reg = 0x02;
735 xbarin = 0;
736 break;
737 case LINE1:
738 reg = 0x00;
739 break;
740 case LINE2:
741 case LINE2_LEFT:
742 reg = 0x09;
743 break;
744 }
745 saa_dsp_writel(dev, 0x464 >> 2, xbarin);
746 if (dev->ctl_mute) {
747 reg = 0x07;
748 xbarout = 0xbbbbbb;
749 } else
750 xbarout = 0xbbbb10;
751 saa_dsp_writel(dev, 0x46c >> 2, xbarout);
752
753 saa_writel(0x594 >> 2, reg);
754
755
756 /* switch gpio-connected external audio mux */
757 if (0 != card(dev).gpiomask) {
758 mask = card(dev).gpiomask;
759
760 if (card(dev).mute.type && dev->ctl_mute)
761 in = &card(dev).mute;
762 else
763 in = dev->input;
764
765 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, mask, mask);
766 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, mask, in->gpio);
767 saa7134_track_gpio(dev, saa7134_input_name[in->type]);
768 }
769
770 return 0;
771 }
772
773 static int tvaudio_thread_ddep(void *data)
774 {
775 struct saa7134_dev *dev = data;
776 u32 value, norms;
777
778 set_freezable();
779 for (;;) {
780 tvaudio_sleep(dev,-1);
781 if (kthread_should_stop())
782 goto done;
783 restart:
784 try_to_freeze();
785
786 dev->thread.scan1 = dev->thread.scan2;
787 audio_dbg(1, "tvaudio thread scan start [%d]\n",
788 dev->thread.scan1);
789
790 if (audio_ddep >= 0x04 && audio_ddep <= 0x0e) {
791 /* insmod option override */
792 norms = (audio_ddep << 2) | 0x01;
793 audio_dbg(1, "ddep override: %s\n",
794 stdres[audio_ddep]);
795 } else if (&card(dev).radio == dev->input) {
796 audio_dbg(1, "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 audio_dbg(1, "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 audio_dbg(1, "tvaudio thread status: 0x%x [%s%s%s]\n",
840 value, stdres[value & 0x1f],
841 (value & 0x000020) ? ",stereo" : "",
842 (value & 0x000040) ? ",dual" : "");
843 audio_dbg(1, "detailed status: %s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s\n",
844 (value & 0x000080) ? " A2/EIAJ pilot tone " : "",
845 (value & 0x000100) ? " A2/EIAJ dual " : "",
846 (value & 0x000200) ? " A2/EIAJ stereo " : "",
847 (value & 0x000400) ? " A2/EIAJ noise mute " : "",
848
849 (value & 0x000800) ? " BTSC/FM radio pilot " : "",
850 (value & 0x001000) ? " SAP carrier " : "",
851 (value & 0x002000) ? " BTSC stereo noise mute " : "",
852 (value & 0x004000) ? " SAP noise mute " : "",
853 (value & 0x008000) ? " VDSP " : "",
854
855 (value & 0x010000) ? " NICST " : "",
856 (value & 0x020000) ? " NICDU " : "",
857 (value & 0x040000) ? " NICAM muted " : "",
858 (value & 0x080000) ? " NICAM reserve sound " : "",
859
860 (value & 0x100000) ? " init done " : "");
861 }
862
863 done:
864 dev->thread.stopped = 1;
865 return 0;
866 }
867
868 /* ------------------------------------------------------------------ */
869 /* common stuff + external entry points */
870
871 void saa7134_enable_i2s(struct saa7134_dev *dev)
872 {
873 int i2s_format;
874
875 if (!card_is_empress(dev))
876 return;
877
878 if (dev->pci->device == PCI_DEVICE_ID_PHILIPS_SAA7130)
879 return;
880
881 /* configure GPIO for out */
882 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, 0x0E000000, 0x00000000);
883
884 switch (dev->pci->device) {
885 case PCI_DEVICE_ID_PHILIPS_SAA7133:
886 case PCI_DEVICE_ID_PHILIPS_SAA7135:
887 /* Set I2S format (SONY)  */
888 saa_writeb(SAA7133_I2S_AUDIO_CONTROL, 0x00);
889 /* Start I2S */
890 saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x11);
891 break;
892
893 case PCI_DEVICE_ID_PHILIPS_SAA7134:
894 i2s_format = (dev->input->amux == TV) ? 0x00 : 0x01;
895
896 /* enable I2S audio output for the mpeg encoder */
897 saa_writeb(SAA7134_I2S_OUTPUT_SELECT, 0x80);
898 saa_writeb(SAA7134_I2S_OUTPUT_FORMAT, i2s_format);
899 saa_writeb(SAA7134_I2S_OUTPUT_LEVEL, 0x0F);
900 saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x01);
901
902 default:
903 break;
904 }
905 }
906
907 int saa7134_tvaudio_rx2mode(u32 rx)
908 {
909 u32 mode;
910
911 mode = V4L2_TUNER_MODE_MONO;
912 if (rx & V4L2_TUNER_SUB_STEREO)
913 mode = V4L2_TUNER_MODE_STEREO;
914 else if (rx & V4L2_TUNER_SUB_LANG1)
915 mode = V4L2_TUNER_MODE_LANG1;
916 else if (rx & V4L2_TUNER_SUB_LANG2)
917 mode = V4L2_TUNER_MODE_LANG2;
918 return mode;
919 }
920
921 void saa7134_tvaudio_setmute(struct saa7134_dev *dev)
922 {
923 switch (dev->pci->device) {
924 case PCI_DEVICE_ID_PHILIPS_SAA7130:
925 case PCI_DEVICE_ID_PHILIPS_SAA7134:
926 mute_input_7134(dev);
927 break;
928 case PCI_DEVICE_ID_PHILIPS_SAA7133:
929 case PCI_DEVICE_ID_PHILIPS_SAA7135:
930 mute_input_7133(dev);
931 break;
932 }
933 }
934
935 void saa7134_tvaudio_setinput(struct saa7134_dev *dev,
936 struct saa7134_input *in)
937 {
938 dev->input = in;
939 switch (dev->pci->device) {
940 case PCI_DEVICE_ID_PHILIPS_SAA7130:
941 case PCI_DEVICE_ID_PHILIPS_SAA7134:
942 mute_input_7134(dev);
943 break;
944 case PCI_DEVICE_ID_PHILIPS_SAA7133:
945 case PCI_DEVICE_ID_PHILIPS_SAA7135:
946 mute_input_7133(dev);
947 break;
948 }
949 saa7134_enable_i2s(dev);
950 }
951
952 void saa7134_tvaudio_setvolume(struct saa7134_dev *dev, int level)
953 {
954 switch (dev->pci->device) {
955 case PCI_DEVICE_ID_PHILIPS_SAA7134:
956 saa_writeb(SAA7134_CHANNEL1_LEVEL, level & 0x1f);
957 saa_writeb(SAA7134_CHANNEL2_LEVEL, level & 0x1f);
958 saa_writeb(SAA7134_NICAM_LEVEL_ADJUST, level & 0x1f);
959 break;
960 }
961 }
962
963 int saa7134_tvaudio_getstereo(struct saa7134_dev *dev)
964 {
965 int retval = V4L2_TUNER_SUB_MONO;
966
967 switch (dev->pci->device) {
968 case PCI_DEVICE_ID_PHILIPS_SAA7134:
969 if (dev->tvaudio)
970 retval = tvaudio_getstereo(dev,dev->tvaudio);
971 break;
972 case PCI_DEVICE_ID_PHILIPS_SAA7133:
973 case PCI_DEVICE_ID_PHILIPS_SAA7135:
974 retval = getstereo_7133(dev);
975 break;
976 }
977 return retval;
978 }
979
980 void saa7134_tvaudio_init(struct saa7134_dev *dev)
981 {
982 int clock = saa7134_boards[dev->board].audio_clock;
983
984 if (UNSET != audio_clock_override)
985 clock = audio_clock_override;
986
987 switch (dev->pci->device) {
988 case PCI_DEVICE_ID_PHILIPS_SAA7134:
989 /* init all audio registers */
990 saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x00);
991 if (need_resched())
992 schedule();
993 else
994 udelay(10);
995
996 saa_writeb(SAA7134_AUDIO_CLOCK0, clock & 0xff);
997 saa_writeb(SAA7134_AUDIO_CLOCK1, (clock >> 8) & 0xff);
998 saa_writeb(SAA7134_AUDIO_CLOCK2, (clock >> 16) & 0xff);
999 /* frame locked audio is mandatory for NICAM */
1000 saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x01);
1001 saa_writeb(SAA7134_NICAM_ERROR_LOW, 0x14);
1002 saa_writeb(SAA7134_NICAM_ERROR_HIGH, 0x50);
1003 break;
1004 case PCI_DEVICE_ID_PHILIPS_SAA7133:
1005 case PCI_DEVICE_ID_PHILIPS_SAA7135:
1006 saa_writel(0x598 >> 2, clock);
1007 saa_dsp_writel(dev, 0x474 >> 2, 0x00);
1008 saa_dsp_writel(dev, 0x450 >> 2, 0x00);
1009 }
1010 }
1011
1012 int saa7134_tvaudio_init2(struct saa7134_dev *dev)
1013 {
1014 int (*my_thread)(void *data) = NULL;
1015
1016 switch (dev->pci->device) {
1017 case PCI_DEVICE_ID_PHILIPS_SAA7134:
1018 my_thread = tvaudio_thread;
1019 break;
1020 case PCI_DEVICE_ID_PHILIPS_SAA7133:
1021 case PCI_DEVICE_ID_PHILIPS_SAA7135:
1022 my_thread = tvaudio_thread_ddep;
1023 break;
1024 }
1025
1026 dev->thread.thread = NULL;
1027 dev->thread.scan1 = dev->thread.scan2 = 0;
1028 if (my_thread) {
1029 saa7134_tvaudio_init(dev);
1030 /* start tvaudio thread */
1031 dev->thread.thread = kthread_run(my_thread, dev, "%s", dev->name);
1032 if (IS_ERR(dev->thread.thread)) {
1033 pr_warn("%s: kernel_thread() failed\n",
1034 dev->name);
1035 /* XXX: missing error handling here */
1036 }
1037 }
1038
1039 saa7134_enable_i2s(dev);
1040 return 0;
1041 }
1042
1043 int saa7134_tvaudio_close(struct saa7134_dev *dev)
1044 {
1045 dev->automute = 1;
1046 /* anything else to undo? */
1047 return 0;
1048 }
1049
1050 int saa7134_tvaudio_fini(struct saa7134_dev *dev)
1051 {
1052 /* shutdown tvaudio thread */
1053 if (dev->thread.thread && !dev->thread.stopped)
1054 kthread_stop(dev->thread.thread);
1055
1056 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, 0x00); /* LINE1 */
1057 return 0;
1058 }
1059
1060 int saa7134_tvaudio_do_scan(struct saa7134_dev *dev)
1061 {
1062 if (dev->input->amux != TV) {
1063 audio_dbg(1, "sound IF not in use, skipping scan\n");
1064 dev->automute = 0;
1065 saa7134_tvaudio_setmute(dev);
1066 } else if (dev->thread.thread) {
1067 dev->thread.mode = UNSET;
1068 dev->thread.scan2++;
1069
1070 if (!dev->insuspend && !dev->thread.stopped)
1071 wake_up_process(dev->thread.thread);
1072 } else {
1073 dev->automute = 0;
1074 saa7134_tvaudio_setmute(dev);
1075 }
1076 return 0;
1077 }
1078
1079 EXPORT_SYMBOL(saa_dsp_writel);
1080 EXPORT_SYMBOL(saa7134_tvaudio_setmute);
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