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V4L/DVB (6006): tuner: move last_div to tuner-simple private data
[wrt350n-kernel.git] / drivers / media / video / saa7134 / saa7134-tvaudio.c
blob18b4817b4aac6edb2ac79f0f6298f24cbdd0fb4f
1 /*
2 *
3 * device driver for philips saa7134 based TV cards
4 * tv audio decoder (fm stereo, nicam, ...)
5 *
6 * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 */
22
23 #include <linux/init.h>
24 #include <linux/list.h>
25 #include <linux/module.h>
26 #include <linux/moduleparam.h>
27 #include <linux/kernel.h>
28 #include <linux/kthread.h>
29 #include <linux/slab.h>
30 #include <linux/delay.h>
31 #include <asm/div64.h>
32
33 #include "saa7134-reg.h"
34 #include "saa7134.h"
35
36 /* ------------------------------------------------------------------ */
37
38 static unsigned int audio_debug = 0;
39 module_param(audio_debug, int, 0644);
40 MODULE_PARM_DESC(audio_debug,"enable debug messages [tv audio]");
41
42 static unsigned int audio_ddep = 0;
43 module_param(audio_ddep, int, 0644);
44 MODULE_PARM_DESC(audio_ddep,"audio ddep overwrite");
45
46 static int audio_clock_override = UNSET;
47 module_param(audio_clock_override, int, 0644);
48
49 static int audio_clock_tweak = 0;
50 module_param(audio_clock_tweak, int, 0644);
51 MODULE_PARM_DESC(audio_clock_tweak, "Audio clock tick fine tuning for cards with audio crystal that's slightly off (range [-1024 .. 1024])");
52
53 #define dprintk(fmt, arg...) if (audio_debug) \
54 printk(KERN_DEBUG "%s/audio: " fmt, dev->name , ## arg)
55 #define d2printk(fmt, arg...) if (audio_debug > 1) \
56 printk(KERN_DEBUG "%s/audio: " fmt, dev->name, ## arg)
57
58 #define print_regb(reg) printk("%s: reg 0x%03x [%-16s]: 0x%02x\n", \
59 dev->name,(SAA7134_##reg),(#reg),saa_readb((SAA7134_##reg)))
60
61 /* msecs */
62 #define SCAN_INITIAL_DELAY 1000
63 #define SCAN_SAMPLE_DELAY 200
64 #define SCAN_SUBCARRIER_DELAY 2000
65
66 /* ------------------------------------------------------------------ */
67 /* saa7134 code */
68
69 static struct mainscan {
70 char *name;
71 v4l2_std_id std;
72 int carr;
73 } mainscan[] = {
74 {
75 .name = "MN",
76 .std = V4L2_STD_MN,
77 .carr = 4500,
78 },{
79 .name = "BGH",
80 .std = V4L2_STD_B | V4L2_STD_GH,
81 .carr = 5500,
82 },{
83 .name = "I",
84 .std = V4L2_STD_PAL_I,
85 .carr = 6000,
86 },{
87 .name = "DKL",
88 .std = V4L2_STD_DK | V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC,
89 .carr = 6500,
90 }
91 };
92
93 static struct saa7134_tvaudio tvaudio[] = {
94 {
95 .name = "PAL-B/G FM-stereo",
96 .std = V4L2_STD_PAL_BG,
97 .mode = TVAUDIO_FM_BG_STEREO,
98 .carr1 = 5500,
99 .carr2 = 5742,
100 },{
101 .name = "PAL-D/K1 FM-stereo",
102 .std = V4L2_STD_PAL_DK,
103 .carr1 = 6500,
104 .carr2 = 6258,
105 .mode = TVAUDIO_FM_BG_STEREO,
106 },{
107 .name = "PAL-D/K2 FM-stereo",
108 .std = V4L2_STD_PAL_DK,
109 .carr1 = 6500,
110 .carr2 = 6742,
111 .mode = TVAUDIO_FM_BG_STEREO,
112 },{
113 .name = "PAL-D/K3 FM-stereo",
114 .std = V4L2_STD_PAL_DK,
115 .carr1 = 6500,
116 .carr2 = 5742,
117 .mode = TVAUDIO_FM_BG_STEREO,
118 },{
119 .name = "PAL-B/G NICAM",
120 .std = V4L2_STD_PAL_BG,
121 .carr1 = 5500,
122 .carr2 = 5850,
123 .mode = TVAUDIO_NICAM_FM,
124 },{
125 .name = "PAL-I NICAM",
126 .std = V4L2_STD_PAL_I,
127 .carr1 = 6000,
128 .carr2 = 6552,
129 .mode = TVAUDIO_NICAM_FM,
130 },{
131 .name = "PAL-D/K NICAM",
132 .std = V4L2_STD_PAL_DK,
133 .carr1 = 6500,
134 .carr2 = 5850,
135 .mode = TVAUDIO_NICAM_FM,
136 },{
137 .name = "SECAM-L NICAM",
138 .std = V4L2_STD_SECAM_L,
139 .carr1 = 6500,
140 .carr2 = 5850,
141 .mode = TVAUDIO_NICAM_AM,
142 },{
143 .name = "SECAM-D/K NICAM",
144 .std = V4L2_STD_SECAM_DK,
145 .carr1 = 6500,
146 .carr2 = 5850,
147 .mode = TVAUDIO_NICAM_FM,
148 },{
149 .name = "NTSC-A2 FM-stereo",
150 .std = V4L2_STD_NTSC,
151 .carr1 = 4500,
152 .carr2 = 4724,
153 .mode = TVAUDIO_FM_K_STEREO,
154 },{
155 .name = "NTSC-M",
156 .std = V4L2_STD_NTSC,
157 .carr1 = 4500,
158 .carr2 = -1,
159 .mode = TVAUDIO_FM_MONO,
160 }
161 };
162 #define TVAUDIO (sizeof(tvaudio)/sizeof(struct saa7134_tvaudio))
163
164 /* ------------------------------------------------------------------ */
165
166 static void tvaudio_init(struct saa7134_dev *dev)
167 {
168 int clock = saa7134_boards[dev->board].audio_clock;
169
170 if (UNSET != audio_clock_override)
171 clock = audio_clock_override;
172
173 /* init all audio registers */
174 saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x00);
175 if (need_resched())
176 schedule();
177 else
178 udelay(10);
179
180 saa_writeb(SAA7134_AUDIO_CLOCK0, clock & 0xff);
181 saa_writeb(SAA7134_AUDIO_CLOCK1, (clock >> 8) & 0xff);
182 saa_writeb(SAA7134_AUDIO_CLOCK2, (clock >> 16) & 0xff);
183 /* frame locked audio is mandatory for NICAM */
184 saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x01);
185
186 saa_writeb(SAA7134_NICAM_ERROR_LOW, 0x14);
187 saa_writeb(SAA7134_NICAM_ERROR_HIGH, 0x50);
188 saa_writeb(SAA7134_MONITOR_SELECT, 0xa0);
189 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
190 }
191
192 static u32 tvaudio_carr2reg(u32 carrier)
193 {
194 u64 a = carrier;
195
196 a <<= 24;
197 do_div(a,12288);
198 return a;
199 }
200
201 static void tvaudio_setcarrier(struct saa7134_dev *dev,
202 int primary, int secondary)
203 {
204 if (-1 == secondary)
205 secondary = primary;
206 saa_writel(SAA7134_CARRIER1_FREQ0 >> 2, tvaudio_carr2reg(primary));
207 saa_writel(SAA7134_CARRIER2_FREQ0 >> 2, tvaudio_carr2reg(secondary));
208 }
209
210 #define SAA7134_MUTE_MASK 0xbb
211 #define SAA7134_MUTE_ANALOG 0x04
212 #define SAA7134_MUTE_I2S 0x40
213
214 static void mute_input_7134(struct saa7134_dev *dev)
215 {
216 unsigned int mute;
217 struct saa7134_input *in;
218 int ausel=0, ics=0, ocs=0;
219 int mask;
220
221 /* look what is to do ... */
222 in = dev->input;
223 mute = (dev->ctl_mute ||
224 (dev->automute && (&card(dev).radio) != in));
225 if (card(dev).mute.name) {
226 /*
227 * 7130 - we'll mute using some unconnected audio input
228 * 7134 - we'll probably should switch external mux with gpio
229 */
230 if (mute)
231 in = &card(dev).mute;
232 }
233
234 if (dev->hw_mute == mute &&
235 dev->hw_input == in) {
236 dprintk("mute/input: nothing to do [mute=%d,input=%s]\n",
237 mute,in->name);
238 return;
239 }
240
241 dprintk("ctl_mute=%d automute=%d input=%s => mute=%d input=%s\n",
242 dev->ctl_mute,dev->automute,dev->input->name,mute,in->name);
243 dev->hw_mute = mute;
244 dev->hw_input = in;
245
246 if (PCI_DEVICE_ID_PHILIPS_SAA7134 == dev->pci->device)
247 /* 7134 mute */
248 saa_writeb(SAA7134_AUDIO_MUTE_CTRL, mute ?
249 SAA7134_MUTE_MASK |
250 SAA7134_MUTE_ANALOG |
251 SAA7134_MUTE_I2S :
252 SAA7134_MUTE_MASK);
253
254 /* switch internal audio mux */
255 switch (in->amux) {
256 case TV: ausel=0xc0; ics=0x00; ocs=0x02; break;
257 case LINE1: ausel=0x80; ics=0x00; ocs=0x00; break;
258 case LINE2: ausel=0x80; ics=0x08; ocs=0x01; break;
259 case LINE2_LEFT: ausel=0x80; ics=0x08; ocs=0x05; break;
260 }
261 saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, ausel);
262 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x08, ics);
263 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, ocs);
264 // for oss, we need to change the clock configuration
265 if (in->amux == TV)
266 saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x00);
267 else
268 saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x01);
269
270 /* switch gpio-connected external audio mux */
271 if (0 == card(dev).gpiomask)
272 return;
273
274 mask = card(dev).gpiomask;
275 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, mask, mask);
276 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, mask, in->gpio);
277 saa7134_track_gpio(dev,in->name);
278 }
279
280 static void tvaudio_setmode(struct saa7134_dev *dev,
281 struct saa7134_tvaudio *audio,
282 char *note)
283 {
284 int acpf, tweak = 0;
285
286 if (dev->tvnorm->id == V4L2_STD_NTSC) {
287 acpf = 0x19066;
288 } else {
289 acpf = 0x1e000;
290 }
291 if (audio_clock_tweak > -1024 && audio_clock_tweak < 1024)
292 tweak = audio_clock_tweak;
293
294 if (note)
295 dprintk("tvaudio_setmode: %s %s [%d.%03d/%d.%03d MHz] acpf=%d%+d\n",
296 note,audio->name,
297 audio->carr1 / 1000, audio->carr1 % 1000,
298 audio->carr2 / 1000, audio->carr2 % 1000,
299 acpf, tweak);
300
301 acpf += tweak;
302 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD0, (acpf & 0x0000ff) >> 0);
303 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD1, (acpf & 0x00ff00) >> 8);
304 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD2, (acpf & 0x030000) >> 16);
305 tvaudio_setcarrier(dev,audio->carr1,audio->carr2);
306
307 switch (audio->mode) {
308 case TVAUDIO_FM_MONO:
309 case TVAUDIO_FM_BG_STEREO:
310 saa_writeb(SAA7134_DEMODULATOR, 0x00);
311 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
312 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x22);
313 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
314 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa0);
315 break;
316 case TVAUDIO_FM_K_STEREO:
317 saa_writeb(SAA7134_DEMODULATOR, 0x00);
318 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x01);
319 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x22);
320 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
321 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa0);
322 break;
323 case TVAUDIO_NICAM_FM:
324 saa_writeb(SAA7134_DEMODULATOR, 0x10);
325 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
326 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x44);
327 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa1);
328 saa_writeb(SAA7134_NICAM_CONFIG, 0x00);
329 break;
330 case TVAUDIO_NICAM_AM:
331 saa_writeb(SAA7134_DEMODULATOR, 0x12);
332 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
333 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x44);
334 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa1);
335 saa_writeb(SAA7134_NICAM_CONFIG, 0x00);
336 break;
337 case TVAUDIO_FM_SAT_STEREO:
338 /* not implemented (yet) */
339 break;
340 }
341 }
342
343 static int tvaudio_sleep(struct saa7134_dev *dev, int timeout)
344 {
345 if (dev->thread.scan1 == dev->thread.scan2 &&
346 !kthread_should_stop()) {
347 if (timeout < 0) {
348 set_current_state(TASK_INTERRUPTIBLE);
349 schedule();
350 } else {
351 schedule_timeout_interruptible
352 (msecs_to_jiffies(timeout));
353 }
354 }
355 return dev->thread.scan1 != dev->thread.scan2;
356 }
357
358 static int tvaudio_checkcarrier(struct saa7134_dev *dev, struct mainscan *scan)
359 {
360 __s32 left,right,value;
361
362 if (audio_debug > 1) {
363 int i;
364 dprintk("debug %d:",scan->carr);
365 for (i = -150; i <= 150; i += 30) {
366 tvaudio_setcarrier(dev,scan->carr+i,scan->carr+i);
367 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
368 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
369 return -1;
370 value = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
371 if (0 == i)
372 printk(" # %6d # ",value >> 16);
373 else
374 printk(" %6d",value >> 16);
375 }
376 printk("\n");
377 }
378 if (dev->tvnorm->id & scan->std) {
379 tvaudio_setcarrier(dev,scan->carr-90,scan->carr-90);
380 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
381 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
382 return -1;
383 left = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
384
385 tvaudio_setcarrier(dev,scan->carr+90,scan->carr+90);
386 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
387 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
388 return -1;
389 right = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
390
391 left >>= 16;
392 right >>= 16;
393 value = left > right ? left - right : right - left;
394 dprintk("scanning %d.%03d MHz [%4s] => dc is %5d [%d/%d]\n",
395 scan->carr / 1000, scan->carr % 1000,
396 scan->name, value, left, right);
397 } else {
398 value = 0;
399 dprintk("skipping %d.%03d MHz [%4s]\n",
400 scan->carr / 1000, scan->carr % 1000, scan->name);
401 }
402 return value;
403 }
404
405
406 static int tvaudio_getstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio)
407 {
408 __u32 idp, nicam, nicam_status;
409 int retval = -1;
410
411 switch (audio->mode) {
412 case TVAUDIO_FM_MONO:
413 return V4L2_TUNER_SUB_MONO;
414 case TVAUDIO_FM_K_STEREO:
415 case TVAUDIO_FM_BG_STEREO:
416 idp = (saa_readb(SAA7134_IDENT_SIF) & 0xe0) >> 5;
417 dprintk("getstereo: fm/stereo: idp=0x%x\n",idp);
418 if (0x03 == (idp & 0x03))
419 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
420 else if (0x05 == (idp & 0x05))
421 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
422 else if (0x01 == (idp & 0x01))
423 retval = V4L2_TUNER_SUB_MONO;
424 break;
425 case TVAUDIO_FM_SAT_STEREO:
426 /* not implemented (yet) */
427 break;
428 case TVAUDIO_NICAM_FM:
429 case TVAUDIO_NICAM_AM:
430 nicam = saa_readb(SAA7134_AUDIO_STATUS);
431 dprintk("getstereo: nicam=0x%x\n",nicam);
432 if (nicam & 0x1) {
433 nicam_status = saa_readb(SAA7134_NICAM_STATUS);
434 dprintk("getstereo: nicam_status=0x%x\n", nicam_status);
435
436 switch (nicam_status & 0x03) {
437 case 0x01:
438 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
439 break;
440 case 0x02:
441 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
442 break;
443 default:
444 retval = V4L2_TUNER_SUB_MONO;
445 }
446 } else {
447 /* No nicam detected */
448 }
449 break;
450 }
451 if (retval != -1)
452 dprintk("found audio subchannels:%s%s%s%s\n",
453 (retval & V4L2_TUNER_SUB_MONO) ? " mono" : "",
454 (retval & V4L2_TUNER_SUB_STEREO) ? " stereo" : "",
455 (retval & V4L2_TUNER_SUB_LANG1) ? " lang1" : "",
456 (retval & V4L2_TUNER_SUB_LANG2) ? " lang2" : "");
457 return retval;
458 }
459
460 static int tvaudio_setstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio,
461 u32 mode)
462 {
463 static char *name[] = {
464 [ V4L2_TUNER_MODE_MONO ] = "mono",
465 [ V4L2_TUNER_MODE_STEREO ] = "stereo",
466 [ V4L2_TUNER_MODE_LANG1 ] = "lang1",
467 [ V4L2_TUNER_MODE_LANG2 ] = "lang2",
468 [ V4L2_TUNER_MODE_LANG1_LANG2 ] = "lang1+lang2",
469 };
470 static u32 fm[] = {
471 [ V4L2_TUNER_MODE_MONO ] = 0x00, /* ch1 */
472 [ V4L2_TUNER_MODE_STEREO ] = 0x80, /* auto */
473 [ V4L2_TUNER_MODE_LANG1 ] = 0x00, /* ch1 */
474 [ V4L2_TUNER_MODE_LANG2 ] = 0x01, /* ch2 */
475 [ V4L2_TUNER_MODE_LANG1_LANG2 ] = 0x80, /* auto */
476 };
477 u32 reg;
478
479 switch (audio->mode) {
480 case TVAUDIO_FM_MONO:
481 /* nothing to do ... */
482 break;
483 case TVAUDIO_FM_K_STEREO:
484 case TVAUDIO_FM_BG_STEREO:
485 case TVAUDIO_NICAM_AM:
486 case TVAUDIO_NICAM_FM:
487 dprintk("setstereo [fm] => %s\n",
488 name[ mode % ARRAY_SIZE(name) ]);
489 reg = fm[ mode % ARRAY_SIZE(fm) ];
490 saa_writeb(SAA7134_FM_DEMATRIX, reg);
491 break;
492 case TVAUDIO_FM_SAT_STEREO:
493 /* Not implemented */
494 break;
495 }
496 return 0;
497 }
498
499 static int tvaudio_thread(void *data)
500 {
501 struct saa7134_dev *dev = data;
502 int carr_vals[ARRAY_SIZE(mainscan)];
503 unsigned int i, audio, nscan;
504 int max1,max2,carrier,rx,mode,lastmode,default_carrier;
505
506 allow_signal(SIGTERM);
507 for (;;) {
508 tvaudio_sleep(dev,-1);
509 if (kthread_should_stop() || signal_pending(current))
510 goto done;
511
512 restart:
513 dev->thread.scan1 = dev->thread.scan2;
514 dprintk("tvaudio thread scan start [%d]\n",dev->thread.scan1);
515 dev->tvaudio = NULL;
516 tvaudio_init(dev);
517 if (dev->ctl_automute)
518 dev->automute = 1;
519 mute_input_7134(dev);
520
521 /* give the tuner some time */
522 if (tvaudio_sleep(dev,SCAN_INITIAL_DELAY))
523 goto restart;
524
525 max1 = 0;
526 max2 = 0;
527 nscan = 0;
528 carrier = 0;
529 default_carrier = 0;
530 for (i = 0; i < ARRAY_SIZE(mainscan); i++) {
531 if (!(dev->tvnorm->id & mainscan[i].std))
532 continue;
533 if (!default_carrier)
534 default_carrier = mainscan[i].carr;
535 nscan++;
536 }
537
538 if (1 == nscan) {
539 /* only one candidate -- skip scan ;) */
540 dprintk("only one main carrier candidate - skipping scan\n");
541 max1 = 12345;
542 carrier = default_carrier;
543 } else {
544 /* scan for the main carrier */
545 saa_writeb(SAA7134_MONITOR_SELECT,0x00);
546 tvaudio_setmode(dev,&tvaudio[0],NULL);
547 for (i = 0; i < ARRAY_SIZE(mainscan); i++) {
548 carr_vals[i] = tvaudio_checkcarrier(dev, mainscan+i);
549 if (dev->thread.scan1 != dev->thread.scan2)
550 goto restart;
551 }
552 for (max1 = 0, max2 = 0, i = 0; i < ARRAY_SIZE(mainscan); i++) {
553 if (max1 < carr_vals[i]) {
554 max2 = max1;
555 max1 = carr_vals[i];
556 carrier = mainscan[i].carr;
557 } else if (max2 < carr_vals[i]) {
558 max2 = carr_vals[i];
559 }
560 }
561 }
562
563 if (0 != carrier && max1 > 2000 && max1 > max2*3) {
564 /* found good carrier */
565 dprintk("found %s main sound carrier @ %d.%03d MHz [%d/%d]\n",
566 dev->tvnorm->name, carrier/1000, carrier%1000,
567 max1, max2);
568 dev->last_carrier = carrier;
569
570 } else if (0 != dev->last_carrier) {
571 /* no carrier -- try last detected one as fallback */
572 carrier = dev->last_carrier;
573 dprintk(KERN_WARNING "%s/audio: audio carrier scan failed, "
574 "using %d.%03d MHz [last detected]\n",
575 dev->name, carrier/1000, carrier%1000);
576
577 } else {
578 /* no carrier + no fallback -- use default */
579 carrier = default_carrier;
580 dprintk(KERN_WARNING "%s/audio: audio carrier scan failed, "
581 "using %d.%03d MHz [default]\n",
582 dev->name, carrier/1000, carrier%1000);
583 }
584 tvaudio_setcarrier(dev,carrier,carrier);
585 dev->automute = 0;
586 saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x00);
587 saa7134_tvaudio_setmute(dev);
588 /* find the exact tv audio norm */
589 for (audio = UNSET, i = 0; i < TVAUDIO; i++) {
590 if (dev->tvnorm->id != UNSET &&
591 !(dev->tvnorm->id & tvaudio[i].std))
592 continue;
593 if (tvaudio[i].carr1 != carrier)
594 continue;
595 /* Note: at least the primary carrier is right here */
596 if (UNSET == audio)
597 audio = i;
598 tvaudio_setmode(dev,&tvaudio[i],"trying");
599 if (tvaudio_sleep(dev,SCAN_SUBCARRIER_DELAY))
600 goto restart;
601 if (-1 != tvaudio_getstereo(dev,&tvaudio[i])) {
602 audio = i;
603 break;
604 }
605 }
606 saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x30);
607 if (UNSET == audio)
608 continue;
609 tvaudio_setmode(dev,&tvaudio[audio],"using");
610
611 tvaudio_setstereo(dev,&tvaudio[audio],V4L2_TUNER_MODE_MONO);
612 dev->tvaudio = &tvaudio[audio];
613
614 lastmode = 42;
615 for (;;) {
616 if (tvaudio_sleep(dev,5000))
617 goto restart;
618 if (kthread_should_stop() || signal_pending(current))
619 break;
620 if (UNSET == dev->thread.mode) {
621 rx = tvaudio_getstereo(dev,&tvaudio[i]);
622 mode = saa7134_tvaudio_rx2mode(rx);
623 } else {
624 mode = dev->thread.mode;
625 }
626 if (lastmode != mode) {
627 tvaudio_setstereo(dev,&tvaudio[audio],mode);
628 lastmode = mode;
629 }
630 }
631 }
632
633 done:
634 return 0;
635 }
636
637 /* ------------------------------------------------------------------ */
638 /* saa7133 / saa7135 code */
639
640 static char *stdres[0x20] = {
641 [0x00] = "no standard detected",
642 [0x01] = "B/G (in progress)",
643 [0x02] = "D/K (in progress)",
644 [0x03] = "M (in progress)",
645
646 [0x04] = "B/G A2",
647 [0x05] = "B/G NICAM",
648 [0x06] = "D/K A2 (1)",
649 [0x07] = "D/K A2 (2)",
650 [0x08] = "D/K A2 (3)",
651 [0x09] = "D/K NICAM",
652 [0x0a] = "L NICAM",
653 [0x0b] = "I NICAM",
654
655 [0x0c] = "M Korea",
656 [0x0d] = "M BTSC ",
657 [0x0e] = "M EIAJ",
658
659 [0x0f] = "FM radio / IF 10.7 / 50 deemp",
660 [0x10] = "FM radio / IF 10.7 / 75 deemp",
661 [0x11] = "FM radio / IF sel / 50 deemp",
662 [0x12] = "FM radio / IF sel / 75 deemp",
663
664 [0x13 ... 0x1e ] = "unknown",
665 [0x1f] = "??? [in progress]",
666 };
667
668 #define DSP_RETRY 32
669 #define DSP_DELAY 16
670
671 static inline int saa_dsp_wait_bit(struct saa7134_dev *dev, int bit)
672 {
673 int state, count = DSP_RETRY;
674
675 state = saa_readb(SAA7135_DSP_RWSTATE);
676 if (unlikely(state & SAA7135_DSP_RWSTATE_ERR)) {
677 printk("%s: dsp access error\n",dev->name);
678 /* FIXME: send ack ... */
679 return -EIO;
680 }
681 while (0 == (state & bit)) {
682 if (unlikely(0 == count)) {
683 printk("%s: dsp access wait timeout [bit=%s]\n",
684 dev->name,
685 (bit & SAA7135_DSP_RWSTATE_WRR) ? "WRR" :
686 (bit & SAA7135_DSP_RWSTATE_RDB) ? "RDB" :
687 (bit & SAA7135_DSP_RWSTATE_IDA) ? "IDA" :
688 "???");
689 return -EIO;
690 }
691 saa_wait(DSP_DELAY);
692 state = saa_readb(SAA7135_DSP_RWSTATE);
693 count--;
694 }
695 return 0;
696 }
697
698
699 int saa_dsp_writel(struct saa7134_dev *dev, int reg, u32 value)
700 {
701 int err;
702
703 d2printk("dsp write reg 0x%x = 0x%06x\n",reg<<2,value);
704 err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR);
705 if (err < 0)
706 return err;
707 saa_writel(reg,value);
708 err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR);
709 if (err < 0)
710 return err;
711 return 0;
712 }
713
714 static int getstereo_7133(struct saa7134_dev *dev)
715 {
716 int retval = V4L2_TUNER_SUB_MONO;
717 u32 value;
718
719 value = saa_readl(0x528 >> 2);
720 if (value & 0x20)
721 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
722 if (value & 0x40)
723 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
724 return retval;
725 }
726
727 static int mute_input_7133(struct saa7134_dev *dev)
728 {
729 u32 reg = 0;
730 u32 xbarin, xbarout;
731 int mask;
732 struct saa7134_input *in;
733
734 xbarin = 0x03;
735 switch (dev->input->amux) {
736 case TV:
737 reg = 0x02;
738 xbarin = 0;
739 break;
740 case LINE1:
741 reg = 0x00;
742 break;
743 case LINE2:
744 case LINE2_LEFT:
745 reg = 0x09;
746 break;
747 }
748 saa_dsp_writel(dev, 0x464 >> 2, xbarin);
749 if (dev->ctl_mute) {
750 reg = 0x07;
751 xbarout = 0xbbbbbb;
752 } else
753 xbarout = 0xbbbb10;
754 saa_dsp_writel(dev, 0x46c >> 2, xbarout);
755
756 saa_writel(0x594 >> 2, reg);
757
758
759 /* switch gpio-connected external audio mux */
760 if (0 != card(dev).gpiomask) {
761 mask = card(dev).gpiomask;
762
763 if (card(dev).mute.name && dev->ctl_mute)
764 in = &card(dev).mute;
765 else
766 in = dev->input;
767
768 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, mask, mask);
769 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, mask, in->gpio);
770 saa7134_track_gpio(dev,in->name);
771 }
772
773 return 0;
774 }
775
776 static int tvaudio_thread_ddep(void *data)
777 {
778 struct saa7134_dev *dev = data;
779 u32 value, norms, clock;
780
781 allow_signal(SIGTERM);
782
783 clock = saa7134_boards[dev->board].audio_clock;
784 if (UNSET != audio_clock_override)
785 clock = audio_clock_override;
786 saa_writel(0x598 >> 2, clock);
787
788 /* unmute */
789 saa_dsp_writel(dev, 0x474 >> 2, 0x00);
790 saa_dsp_writel(dev, 0x450 >> 2, 0x00);
791
792 for (;;) {
793 tvaudio_sleep(dev,-1);
794 if (kthread_should_stop() || signal_pending(current))
795 goto done;
796
797 restart:
798 dev->thread.scan1 = dev->thread.scan2;
799 dprintk("tvaudio thread scan start [%d]\n",dev->thread.scan1);
800
801 if (audio_ddep >= 0x04 && audio_ddep <= 0x0e) {
802 /* insmod option override */
803 norms = (audio_ddep << 2) | 0x01;
804 dprintk("ddep override: %s\n",stdres[audio_ddep]);
805 } else if (&card(dev).radio == dev->input) {
806 dprintk("FM Radio\n");
807 if (dev->tuner_type == TUNER_PHILIPS_TDA8290) {
808 norms = (0x11 << 2) | 0x01;
809 saa_dsp_writel(dev, 0x42c >> 2, 0x729555);
810 } else {
811 norms = (0x0f << 2) | 0x01;
812 }
813 } else {
814 /* (let chip) scan for sound carrier */
815 norms = 0;
816 if (dev->tvnorm->id & (V4L2_STD_B | V4L2_STD_GH))
817 norms |= 0x04;
818 if (dev->tvnorm->id & V4L2_STD_PAL_I)
819 norms |= 0x20;
820 if (dev->tvnorm->id & V4L2_STD_DK)
821 norms |= 0x08;
822 if (dev->tvnorm->id & V4L2_STD_MN)
823 norms |= 0x40;
824 if (dev->tvnorm->id & (V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC))
825 norms |= 0x10;
826 if (0 == norms)
827 norms = 0x7c; /* all */
828 dprintk("scanning:%s%s%s%s%s\n",
829 (norms & 0x04) ? " B/G" : "",
830 (norms & 0x08) ? " D/K" : "",
831 (norms & 0x10) ? " L/L'" : "",
832 (norms & 0x20) ? " I" : "",
833 (norms & 0x40) ? " M" : "");
834 }
835
836 /* kick automatic standard detection */
837 saa_dsp_writel(dev, 0x454 >> 2, 0);
838 saa_dsp_writel(dev, 0x454 >> 2, norms | 0x80);
839
840 /* setup crossbars */
841 saa_dsp_writel(dev, 0x464 >> 2, 0x000000);
842 saa_dsp_writel(dev, 0x470 >> 2, 0x101010);
843
844 if (tvaudio_sleep(dev,3000))
845 goto restart;
846 value = saa_readl(0x528 >> 2) & 0xffffff;
847
848 dprintk("tvaudio thread status: 0x%x [%s%s%s]\n",
849 value, stdres[value & 0x1f],
850 (value & 0x000020) ? ",stereo" : "",
851 (value & 0x000040) ? ",dual" : "");
852 dprintk("detailed status: "
853 "%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s\n",
854 (value & 0x000080) ? " A2/EIAJ pilot tone " : "",
855 (value & 0x000100) ? " A2/EIAJ dual " : "",
856 (value & 0x000200) ? " A2/EIAJ stereo " : "",
857 (value & 0x000400) ? " A2/EIAJ noise mute " : "",
858
859 (value & 0x000800) ? " BTSC/FM radio pilot " : "",
860 (value & 0x001000) ? " SAP carrier " : "",
861 (value & 0x002000) ? " BTSC stereo noise mute " : "",
862 (value & 0x004000) ? " SAP noise mute " : "",
863 (value & 0x008000) ? " VDSP " : "",
864
865 (value & 0x010000) ? " NICST " : "",
866 (value & 0x020000) ? " NICDU " : "",
867 (value & 0x040000) ? " NICAM muted " : "",
868 (value & 0x080000) ? " NICAM reserve sound " : "",
869
870 (value & 0x100000) ? " init done " : "");
871 }
872
873 done:
874 return 0;
875 }
876
877 /* ------------------------------------------------------------------ */
878 /* common stuff + external entry points */
879
880 static void saa7134_enable_i2s(struct saa7134_dev *dev)
881 {
882 int i2s_format;
883
884 if (!card_is_empress(dev))
885 return;
886 i2s_format = (dev->input->amux == TV) ? 0x00 : 0x01;
887
888 /* enable I2S audio output for the mpeg encoder */
889 saa_writeb(SAA7134_I2S_OUTPUT_SELECT, 0x80);
890 saa_writeb(SAA7134_I2S_OUTPUT_FORMAT, i2s_format);
891 saa_writeb(SAA7134_I2S_OUTPUT_LEVEL, 0x0F);
892 saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x01);
893 }
894
895 int saa7134_tvaudio_rx2mode(u32 rx)
896 {
897 u32 mode;
898
899 mode = V4L2_TUNER_MODE_MONO;
900 if (rx & V4L2_TUNER_SUB_STEREO)
901 mode = V4L2_TUNER_MODE_STEREO;
902 else if (rx & V4L2_TUNER_SUB_LANG1)
903 mode = V4L2_TUNER_MODE_LANG1;
904 else if (rx & V4L2_TUNER_SUB_LANG2)
905 mode = V4L2_TUNER_MODE_LANG2;
906 return mode;
907 }
908
909 void saa7134_tvaudio_setmute(struct saa7134_dev *dev)
910 {
911 switch (dev->pci->device) {
912 case PCI_DEVICE_ID_PHILIPS_SAA7130:
913 case PCI_DEVICE_ID_PHILIPS_SAA7134:
914 mute_input_7134(dev);
915 break;
916 case PCI_DEVICE_ID_PHILIPS_SAA7133:
917 case PCI_DEVICE_ID_PHILIPS_SAA7135:
918 mute_input_7133(dev);
919 break;
920 }
921 }
922
923 void saa7134_tvaudio_setinput(struct saa7134_dev *dev,
924 struct saa7134_input *in)
925 {
926 dev->input = in;
927 switch (dev->pci->device) {
928 case PCI_DEVICE_ID_PHILIPS_SAA7130:
929 case PCI_DEVICE_ID_PHILIPS_SAA7134:
930 mute_input_7134(dev);
931 break;
932 case PCI_DEVICE_ID_PHILIPS_SAA7133:
933 case PCI_DEVICE_ID_PHILIPS_SAA7135:
934 mute_input_7133(dev);
935 break;
936 }
937 saa7134_enable_i2s(dev);
938 }
939
940 void saa7134_tvaudio_setvolume(struct saa7134_dev *dev, int level)
941 {
942 switch (dev->pci->device) {
943 case PCI_DEVICE_ID_PHILIPS_SAA7134:
944 saa_writeb(SAA7134_CHANNEL1_LEVEL, level & 0x1f);
945 saa_writeb(SAA7134_CHANNEL2_LEVEL, level & 0x1f);
946 saa_writeb(SAA7134_NICAM_LEVEL_ADJUST, level & 0x1f);
947 break;
948 }
949 }
950
951 int saa7134_tvaudio_getstereo(struct saa7134_dev *dev)
952 {
953 int retval = V4L2_TUNER_SUB_MONO;
954
955 switch (dev->pci->device) {
956 case PCI_DEVICE_ID_PHILIPS_SAA7134:
957 if (dev->tvaudio)
958 retval = tvaudio_getstereo(dev,dev->tvaudio);
959 break;
960 case PCI_DEVICE_ID_PHILIPS_SAA7133:
961 case PCI_DEVICE_ID_PHILIPS_SAA7135:
962 retval = getstereo_7133(dev);
963 break;
964 }
965 return retval;
966 }
967
968 int saa7134_tvaudio_init2(struct saa7134_dev *dev)
969 {
970 int (*my_thread)(void *data) = NULL;
971
972 switch (dev->pci->device) {
973 case PCI_DEVICE_ID_PHILIPS_SAA7134:
974 my_thread = tvaudio_thread;
975 break;
976 case PCI_DEVICE_ID_PHILIPS_SAA7133:
977 case PCI_DEVICE_ID_PHILIPS_SAA7135:
978 my_thread = tvaudio_thread_ddep;
979 break;
980 }
981
982 dev->thread.thread = NULL;
983 if (my_thread) {
984 /* start tvaudio thread */
985 dev->thread.thread = kthread_run(my_thread, dev, "%s", dev->name);
986 if (IS_ERR(dev->thread.thread)) {
987 printk(KERN_WARNING "%s: kernel_thread() failed\n",
988 dev->name);
989 /* XXX: missing error handling here */
990 }
991 saa7134_tvaudio_do_scan(dev);
992 }
993
994 saa7134_enable_i2s(dev);
995 return 0;
996 }
997
998 int saa7134_tvaudio_fini(struct saa7134_dev *dev)
999 {
1000 /* shutdown tvaudio thread */
1001 if (dev->thread.thread)
1002 kthread_stop(dev->thread.thread);
1003
1004 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, 0x00); /* LINE1 */
1005 return 0;
1006 }
1007
1008 int saa7134_tvaudio_do_scan(struct saa7134_dev *dev)
1009 {
1010 if (dev->input->amux != TV) {
1011 dprintk("sound IF not in use, skipping scan\n");
1012 dev->automute = 0;
1013 saa7134_tvaudio_setmute(dev);
1014 } else if (dev->thread.thread) {
1015 dev->thread.mode = UNSET;
1016 dev->thread.scan2++;
1017 wake_up_process(dev->thread.thread);
1018 } else {
1019 dev->automute = 0;
1020 saa7134_tvaudio_setmute(dev);
1021 }
1022 return 0;
1023 }
1024
1025 EXPORT_SYMBOL(saa_dsp_writel);
1026 EXPORT_SYMBOL(saa7134_tvaudio_setmute);
1027
1028 /* ----------------------------------------------------------- */
1029 /*
1030 * Local variables:
1031 * c-basic-offset: 8
1032 * End:
1033 */
WRT350N Kernel Patches