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saa7134: fix thread shutdown handling
[deliverable/linux.git] / drivers / media / video / saa7134 / saa7134-tvaudio.c
CommitLineData
1da177e4 1/*
1da177e4
LT		 2 *
3 * device driver for philips saa7134 based TV cards
4 * tv audio decoder (fm stereo, nicam, ...)
5 *
6 * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 */
22
23#include <linux/init.h>
24#include <linux/list.h>
25#include <linux/module.h>
26#include <linux/moduleparam.h>
27#include <linux/kernel.h>
28#include <linux/slab.h>
29#include <linux/delay.h>
1da177e4
LT		 30#include <asm/div64.h>
31
32#include "saa7134-reg.h"
33#include "saa7134.h"
34
35/* ------------------------------------------------------------------ */
36
37static unsigned int audio_debug = 0;
38module_param(audio_debug, int, 0644);
39MODULE_PARM_DESC(audio_debug,"enable debug messages [tv audio]");
40
41static unsigned int audio_ddep = 0;
42module_param(audio_ddep, int, 0644);
43MODULE_PARM_DESC(audio_ddep,"audio ddep overwrite");
44
45static int audio_clock_override = UNSET;
46module_param(audio_clock_override, int, 0644);
47
48static int audio_clock_tweak = 0;
49module_param(audio_clock_tweak, int, 0644);
50MODULE_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
68static struct mainscan {
69 char *name;
70 v4l2_std_id std;
71 int carr;
72} mainscan[] = {
73 {
17b10a73
HH		 74 .name = "MN",
75 .std = V4L2_STD_MN,
1da177e4
LT		 76 .carr = 4500,
77 },{
17b10a73
HH		 78 .name = "BGH",
79 .std = V4L2_STD_B | V4L2_STD_GH,
1da177e4
LT		 80 .carr = 5500,
81 },{
82 .name = "I",
83 .std = V4L2_STD_PAL_I,
84 .carr = 6000,
85 },{
86 .name = "DKL",
17b10a73 87 .std = V4L2_STD_DK | V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC,
1da177e4
LT		 88 .carr = 6500,
89 }
90};
91
92static struct saa7134_tvaudio tvaudio[] = {
93 {
94 .name = "PAL-B/G FM-stereo",
17b10a73 95 .std = V4L2_STD_PAL_BG,
1da177e4
LT		 96 .mode = TVAUDIO_FM_BG_STEREO,
97 .carr1 = 5500,
98 .carr2 = 5742,
99 },{
100 .name = "PAL-D/K1 FM-stereo",
17b10a73 101 .std = V4L2_STD_PAL_DK,
1da177e4
LT		 102 .carr1 = 6500,
103 .carr2 = 6258,
104 .mode = TVAUDIO_FM_BG_STEREO,
105 },{
106 .name = "PAL-D/K2 FM-stereo",
17b10a73 107 .std = V4L2_STD_PAL_DK,
1da177e4
LT		 108 .carr1 = 6500,
109 .carr2 = 6742,
110 .mode = TVAUDIO_FM_BG_STEREO,
111 },{
112 .name = "PAL-D/K3 FM-stereo",
17b10a73 113 .std = V4L2_STD_PAL_DK,
1da177e4
LT		 114 .carr1 = 6500,
115 .carr2 = 5742,
116 .mode = TVAUDIO_FM_BG_STEREO,
117 },{
118 .name = "PAL-B/G NICAM",
17b10a73 119 .std = V4L2_STD_PAL_BG,
1da177e4
LT		 120 .carr1 = 5500,
121 .carr2 = 5850,
122 .mode = TVAUDIO_NICAM_FM,
123 },{
124 .name = "PAL-I NICAM",
17b10a73 125 .std = V4L2_STD_PAL_I,
1da177e4
LT		 126 .carr1 = 6000,
127 .carr2 = 6552,
128 .mode = TVAUDIO_NICAM_FM,
129 },{
130 .name = "PAL-D/K NICAM",
17b10a73 131 .std = V4L2_STD_PAL_DK,
1da177e4
LT		 132 .carr1 = 6500,
133 .carr2 = 5850,
134 .mode = TVAUDIO_NICAM_FM,
135 },{
136 .name = "SECAM-L NICAM",
17b10a73 137 .std = V4L2_STD_SECAM_L,
1da177e4
LT		 138 .carr1 = 6500,
139 .carr2 = 5850,
140 .mode = TVAUDIO_NICAM_AM,
f7d66e82 141 },{
17b10a73
HH		 142 .name = "SECAM-D/K NICAM",
143 .std = V4L2_STD_SECAM_DK,
f7d66e82 144 .carr1 = 6500,
17b10a73
HH		 145 .carr2 = 5850,
146 .mode = TVAUDIO_NICAM_FM,
1da177e4 147 },{
17b10a73
HH		 148 .name = "NTSC-A2 FM-stereo",
149 .std = V4L2_STD_NTSC,
150 .carr1 = 4500,
151 .carr2 = 4724,
152 .mode = TVAUDIO_FM_K_STEREO,
1da177e4
LT		 153 },{
154 .name = "NTSC-M",
155 .std = V4L2_STD_NTSC,
156 .carr1 = 4500,
157 .carr2 = -1,
158 .mode = TVAUDIO_FM_MONO,
1da177e4
LT		 159 }
160};
161#define TVAUDIO (sizeof(tvaudio)/sizeof(struct saa7134_tvaudio))
162
163/* ------------------------------------------------------------------ */
164
165static void tvaudio_init(struct saa7134_dev *dev)
166{
167 int clock = saa7134_boards[dev->board].audio_clock;
168
169 if (UNSET != audio_clock_override)
330a115a 170 clock = audio_clock_override;
1da177e4
LT		 171
172 /* init all audio registers */
173 saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x00);
174 if (need_resched())
175 schedule();
176 else
177 udelay(10);
178
179 saa_writeb(SAA7134_AUDIO_CLOCK0, clock & 0xff);
180 saa_writeb(SAA7134_AUDIO_CLOCK1, (clock >> 8) & 0xff);
181 saa_writeb(SAA7134_AUDIO_CLOCK2, (clock >> 16) & 0xff);
0f79c363
HH		 182 /* frame locked audio is mandatory for NICAM */
183 saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x01);
1da177e4
LT		 184
185 saa_writeb(SAA7134_NICAM_ERROR_LOW, 0x14);
186 saa_writeb(SAA7134_NICAM_ERROR_HIGH, 0x50);
187 saa_writeb(SAA7134_MONITOR_SELECT, 0xa0);
188 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
189}
190
191static u32 tvaudio_carr2reg(u32 carrier)
192{
193 u64 a = carrier;
194
195 a <<= 24;
196 do_div(a,12288);
197 return a;
198}
199
200static void tvaudio_setcarrier(struct saa7134_dev *dev,
201 int primary, int secondary)
202{
203 if (-1 == secondary)
204 secondary = primary;
205 saa_writel(SAA7134_CARRIER1_FREQ0 >> 2, tvaudio_carr2reg(primary));
206 saa_writel(SAA7134_CARRIER2_FREQ0 >> 2, tvaudio_carr2reg(secondary));
207}
208
1eaad5b1
NS		 209#define SAA7134_MUTE_MASK 0xbb
210#define SAA7134_MUTE_ANALOG 0x04
211#define SAA7134_MUTE_I2S 0x40
212
1da177e4
LT		 213static void mute_input_7134(struct saa7134_dev *dev)
214{
215 unsigned int mute;
216 struct saa7134_input *in;
217 int ausel=0, ics=0, ocs=0;
218 int mask;
219
220 /* look what is to do ... */
221 in = dev->input;
222 mute = (dev->ctl_mute ||
223 (dev->automute && (&card(dev).radio) != in));
330a115a
MCC		 224 if (card(dev).mute.name) {
225 /*
226 * 7130 - we'll mute using some unconnected audio input
227 * 7134 - we'll probably should switch external mux with gpio
228 */
1da177e4
LT		 229 if (mute)
230 in = &card(dev).mute;
231 }
330a115a 232
1da177e4 233 if (dev->hw_mute == mute &&
330a115a 234 dev->hw_input == in) {
1da177e4
LT		 235 dprintk("mute/input: nothing to do [mute=%d,input=%s]\n",
236 mute,in->name);
237 return;
238 }
239
240 dprintk("ctl_mute=%d automute=%d input=%s => mute=%d input=%s\n",
241 dev->ctl_mute,dev->automute,dev->input->name,mute,in->name);
242 dev->hw_mute = mute;
243 dev->hw_input = in;
244
245 if (PCI_DEVICE_ID_PHILIPS_SAA7134 == dev->pci->device)
246 /* 7134 mute */
1eaad5b1 247 saa_writeb(SAA7134_AUDIO_MUTE_CTRL, mute ?
4ac97914 248 SAA7134_MUTE_MASK |
1eaad5b1
NS		 249 SAA7134_MUTE_ANALOG |
250 SAA7134_MUTE_I2S :
251 SAA7134_MUTE_MASK);
1da177e4
LT		 252
253 /* switch internal audio mux */
254 switch (in->amux) {
255 case TV: ausel=0xc0; ics=0x00; ocs=0x02; break;
256 case LINE1: ausel=0x80; ics=0x00; ocs=0x00; break;
257 case LINE2: ausel=0x80; ics=0x08; ocs=0x01; break;
258 case LINE2_LEFT: ausel=0x80; ics=0x08; ocs=0x05; break;
259 }
260 saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, ausel);
261 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x08, ics);
262 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, ocs);
ac19ecc6
MCC		 263 // for oss, we need to change the clock configuration
264 if (in->amux == TV)
265 saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x00);
266 else
267 saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x01);
1da177e4
LT		 268
269 /* switch gpio-connected external audio mux */
270 if (0 == card(dev).gpiomask)
271 return;
330a115a 272
1da177e4
LT		 273 mask = card(dev).gpiomask;
274 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, mask, mask);
275 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, mask, in->gpio);
276 saa7134_track_gpio(dev,in->name);
277}
278
279static void tvaudio_setmode(struct saa7134_dev *dev,
280 struct saa7134_tvaudio *audio,
281 char *note)
282{
283 int acpf, tweak = 0;
284
285 if (dev->tvnorm->id == V4L2_STD_NTSC) {
286 acpf = 0x19066;
287 } else {
288 acpf = 0x1e000;
289 }
290 if (audio_clock_tweak > -1024 && audio_clock_tweak < 1024)
291 tweak = audio_clock_tweak;
292
293 if (note)
294 dprintk("tvaudio_setmode: %s %s [%d.%03d/%d.%03d MHz] acpf=%d%+d\n",
295 note,audio->name,
296 audio->carr1 / 1000, audio->carr1 % 1000,
297 audio->carr2 / 1000, audio->carr2 % 1000,
298 acpf, tweak);
299
300 acpf += tweak;
301 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD0, (acpf & 0x0000ff) >> 0);
302 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD1, (acpf & 0x00ff00) >> 8);
303 saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD2, (acpf & 0x030000) >> 16);
304 tvaudio_setcarrier(dev,audio->carr1,audio->carr2);
305
306 switch (audio->mode) {
307 case TVAUDIO_FM_MONO:
308 case TVAUDIO_FM_BG_STEREO:
309 saa_writeb(SAA7134_DEMODULATOR, 0x00);
310 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
311 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x22);
312 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
313 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa0);
314 break;
315 case TVAUDIO_FM_K_STEREO:
316 saa_writeb(SAA7134_DEMODULATOR, 0x00);
317 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x01);
318 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x22);
319 saa_writeb(SAA7134_FM_DEMATRIX, 0x80);
320 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa0);
321 break;
322 case TVAUDIO_NICAM_FM:
323 saa_writeb(SAA7134_DEMODULATOR, 0x10);
324 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
325 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x44);
326 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa1);
327 saa_writeb(SAA7134_NICAM_CONFIG, 0x00);
328 break;
329 case TVAUDIO_NICAM_AM:
330 saa_writeb(SAA7134_DEMODULATOR, 0x12);
331 saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
332 saa_writeb(SAA7134_FM_DEEMPHASIS, 0x44);
333 saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa1);
334 saa_writeb(SAA7134_NICAM_CONFIG, 0x00);
335 break;
336 case TVAUDIO_FM_SAT_STEREO:
337 /* not implemented (yet) */
338 break;
339 }
340}
341
342static int tvaudio_sleep(struct saa7134_dev *dev, int timeout)
343{
344 DECLARE_WAITQUEUE(wait, current);
345
346 add_wait_queue(&dev->thread.wq, &wait);
347 if (dev->thread.scan1 == dev->thread.scan2 && !dev->thread.shutdown) {
348 if (timeout < 0) {
349 set_current_state(TASK_INTERRUPTIBLE);
350 schedule();
351 } else {
8b93ec77
NA		 352 schedule_timeout_interruptible
353 (msecs_to_jiffies(timeout));
1da177e4
LT		 354 }
355 }
356 remove_wait_queue(&dev->thread.wq, &wait);
357 return dev->thread.scan1 != dev->thread.scan2;
358}
359
360static int tvaudio_checkcarrier(struct saa7134_dev *dev, struct mainscan *scan)
361{
362 __s32 left,right,value;
363
364 if (audio_debug > 1) {
365 int i;
366 dprintk("debug %d:",scan->carr);
367 for (i = -150; i <= 150; i += 30) {
368 tvaudio_setcarrier(dev,scan->carr+i,scan->carr+i);
369 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
370 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
371 return -1;
372 value = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
373 if (0 == i)
374 printk(" # %6d # ",value >> 16);
375 else
376 printk(" %6d",value >> 16);
377 }
378 printk("\n");
379 }
1da177e4
LT		 380 if (dev->tvnorm->id & scan->std) {
381 tvaudio_setcarrier(dev,scan->carr-90,scan->carr-90);
382 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
383 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
384 return -1;
385 left = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
386
387 tvaudio_setcarrier(dev,scan->carr+90,scan->carr+90);
388 saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
389 if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
390 return -1;
391 right = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
392
393 left >>= 16;
394 right >>= 16;
395 value = left > right ? left - right : right - left;
396 dprintk("scanning %d.%03d MHz [%4s] => dc is %5d [%d/%d]\n",
397 scan->carr / 1000, scan->carr % 1000,
398 scan->name, value, left, right);
399 } else {
400 value = 0;
401 dprintk("skipping %d.%03d MHz [%4s]\n",
402 scan->carr / 1000, scan->carr % 1000, scan->name);
403 }
404 return value;
405}
406
1da177e4
LT		 407
408static int tvaudio_getstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio)
409{
330a115a 410 __u32 idp, nicam, nicam_status;
1da177e4
LT		 411 int retval = -1;
412
413 switch (audio->mode) {
414 case TVAUDIO_FM_MONO:
415 return V4L2_TUNER_SUB_MONO;
416 case TVAUDIO_FM_K_STEREO:
417 case TVAUDIO_FM_BG_STEREO:
418 idp = (saa_readb(SAA7134_IDENT_SIF) & 0xe0) >> 5;
419 dprintk("getstereo: fm/stereo: idp=0x%x\n",idp);
420 if (0x03 == (idp & 0x03))
421 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
422 else if (0x05 == (idp & 0x05))
423 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
424 else if (0x01 == (idp & 0x01))
425 retval = V4L2_TUNER_SUB_MONO;
426 break;
427 case TVAUDIO_FM_SAT_STEREO:
428 /* not implemented (yet) */
429 break;
430 case TVAUDIO_NICAM_FM:
431 case TVAUDIO_NICAM_AM:
330a115a 432 nicam = saa_readb(SAA7134_AUDIO_STATUS);
1da177e4 433 dprintk("getstereo: nicam=0x%x\n",nicam);
330a115a
MCC		 434 if (nicam & 0x1) {
435 nicam_status = saa_readb(SAA7134_NICAM_STATUS);
436 dprintk("getstereo: nicam_status=0x%x\n", nicam_status);
437
438 switch (nicam_status & 0x03) {
439 case 0x01:
440 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
441 break;
442 case 0x02:
443 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
444 break;
445 default:
446 retval = V4L2_TUNER_SUB_MONO;
447 }
448 } else {
449 /* No nicam detected */
1da177e4
LT		 450 }
451 break;
452 }
453 if (retval != -1)
454 dprintk("found audio subchannels:%s%s%s%s\n",
455 (retval & V4L2_TUNER_SUB_MONO) ? " mono" : "",
456 (retval & V4L2_TUNER_SUB_STEREO) ? " stereo" : "",
457 (retval & V4L2_TUNER_SUB_LANG1) ? " lang1" : "",
458 (retval & V4L2_TUNER_SUB_LANG2) ? " lang2" : "");
459 return retval;
460}
461
462static int tvaudio_setstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio,
463 u32 mode)
464{
465 static char *name[] = {
466 [ V4L2_TUNER_MODE_MONO ] = "mono",
467 [ V4L2_TUNER_MODE_STEREO ] = "stereo",
468 [ V4L2_TUNER_MODE_LANG1 ] = "lang1",
469 [ V4L2_TUNER_MODE_LANG2 ] = "lang2",
301e22d6 470 [ V4L2_TUNER_MODE_LANG1_LANG2 ] = "lang1+lang2",
1da177e4
LT		 471 };
472 static u32 fm[] = {
473 [ V4L2_TUNER_MODE_MONO ] = 0x00, /* ch1 */
474 [ V4L2_TUNER_MODE_STEREO ] = 0x80, /* auto */
475 [ V4L2_TUNER_MODE_LANG1 ] = 0x00, /* ch1 */
476 [ V4L2_TUNER_MODE_LANG2 ] = 0x01, /* ch2 */
301e22d6 477 [ V4L2_TUNER_MODE_LANG1_LANG2 ] = 0x80, /* auto */
1da177e4
LT		 478 };
479 u32 reg;
480
481 switch (audio->mode) {
482 case TVAUDIO_FM_MONO:
483 /* nothing to do ... */
484 break;
485 case TVAUDIO_FM_K_STEREO:
486 case TVAUDIO_FM_BG_STEREO:
330a115a
MCC		 487 case TVAUDIO_NICAM_AM:
488 case TVAUDIO_NICAM_FM:
1da177e4
LT		 489 dprintk("setstereo [fm] => %s\n",
490 name[ mode % ARRAY_SIZE(name) ]);
491 reg = fm[ mode % ARRAY_SIZE(fm) ];
492 saa_writeb(SAA7134_FM_DEMATRIX, reg);
493 break;
494 case TVAUDIO_FM_SAT_STEREO:
330a115a 495 /* Not implemented */
1da177e4
LT		 496 break;
497 }
498 return 0;
499}
500
501static int tvaudio_thread(void *data)
502{
503 struct saa7134_dev *dev = data;
504 int carr_vals[ARRAY_SIZE(mainscan)];
505 unsigned int i, audio, nscan;
506 int max1,max2,carrier,rx,mode,lastmode,default_carrier;
507
508 daemonize("%s", dev->name);
509 allow_signal(SIGTERM);
510 for (;;) {
511 tvaudio_sleep(dev,-1);
512 if (dev->thread.shutdown || signal_pending(current))
513 goto done;
514
515 restart:
516 dev->thread.scan1 = dev->thread.scan2;
517 dprintk("tvaudio thread scan start [%d]\n",dev->thread.scan1);
518 dev->tvaudio = NULL;
519 tvaudio_init(dev);
520 if (dev->ctl_automute)
521 dev->automute = 1;
522 mute_input_7134(dev);
523
524 /* give the tuner some time */
525 if (tvaudio_sleep(dev,SCAN_INITIAL_DELAY))
526 goto restart;
527
528 max1 = 0;
529 max2 = 0;
530 nscan = 0;
531 carrier = 0;
532 default_carrier = 0;
533 for (i = 0; i < ARRAY_SIZE(mainscan); i++) {
534 if (!(dev->tvnorm->id & mainscan[i].std))
535 continue;
536 if (!default_carrier)
537 default_carrier = mainscan[i].carr;
538 nscan++;
539 }
540
541 if (1 == nscan) {
542 /* only one candidate -- skip scan ;) */
17b10a73 543 dprintk("only one main carrier candidate - skipping scan\n");
1da177e4
LT		 544 max1 = 12345;
545 carrier = default_carrier;
546 } else {
547 /* scan for the main carrier */
548 saa_writeb(SAA7134_MONITOR_SELECT,0x00);
549 tvaudio_setmode(dev,&tvaudio[0],NULL);
550 for (i = 0; i < ARRAY_SIZE(mainscan); i++) {
551 carr_vals[i] = tvaudio_checkcarrier(dev, mainscan+i);
552 if (dev->thread.scan1 != dev->thread.scan2)
553 goto restart;
554 }
555 for (max1 = 0, max2 = 0, i = 0; i < ARRAY_SIZE(mainscan); i++) {
556 if (max1 < carr_vals[i]) {
557 max2 = max1;
558 max1 = carr_vals[i];
559 carrier = mainscan[i].carr;
560 } else if (max2 < carr_vals[i]) {
561 max2 = carr_vals[i];
562 }
563 }
564 }
565
566 if (0 != carrier && max1 > 2000 && max1 > max2*3) {
567 /* found good carrier */
568 dprintk("found %s main sound carrier @ %d.%03d MHz [%d/%d]\n",
569 dev->tvnorm->name, carrier/1000, carrier%1000,
570 max1, max2);
571 dev->last_carrier = carrier;
572
573 } else if (0 != dev->last_carrier) {
574 /* no carrier -- try last detected one as fallback */
575 carrier = dev->last_carrier;
ac19ecc6 576 dprintk(KERN_WARNING "%s/audio: audio carrier scan failed, "
1da177e4
LT		 577 "using %d.%03d MHz [last detected]\n",
578 dev->name, carrier/1000, carrier%1000);
579
580 } else {
581 /* no carrier + no fallback -- use default */
582 carrier = default_carrier;
ac19ecc6 583 dprintk(KERN_WARNING "%s/audio: audio carrier scan failed, "
1da177e4
LT		 584 "using %d.%03d MHz [default]\n",
585 dev->name, carrier/1000, carrier%1000);
586 }
587 tvaudio_setcarrier(dev,carrier,carrier);
588 dev->automute = 0;
589 saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x00);
590 saa7134_tvaudio_setmute(dev);
1da177e4
LT		 591 /* find the exact tv audio norm */
592 for (audio = UNSET, i = 0; i < TVAUDIO; i++) {
593 if (dev->tvnorm->id != UNSET &&
330a115a 594 !(dev->tvnorm->id & tvaudio[i].std))
1da177e4
LT		 595 continue;
596 if (tvaudio[i].carr1 != carrier)
597 continue;
17b10a73 598 /* Note: at least the primary carrier is right here */
1da177e4
LT		 599 if (UNSET == audio)
600 audio = i;
601 tvaudio_setmode(dev,&tvaudio[i],"trying");
602 if (tvaudio_sleep(dev,SCAN_SUBCARRIER_DELAY))
603 goto restart;
604 if (-1 != tvaudio_getstereo(dev,&tvaudio[i])) {
605 audio = i;
606 break;
607 }
608 }
609 saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x30);
610 if (UNSET == audio)
611 continue;
612 tvaudio_setmode(dev,&tvaudio[audio],"using");
17b10a73 613
1da177e4
LT		 614 tvaudio_setstereo(dev,&tvaudio[audio],V4L2_TUNER_MODE_MONO);
615 dev->tvaudio = &tvaudio[audio];
616
617 lastmode = 42;
618 for (;;) {
619 if (tvaudio_sleep(dev,5000))
620 goto restart;
621 if (dev->thread.shutdown || signal_pending(current))
622 break;
623 if (UNSET == dev->thread.mode) {
624 rx = tvaudio_getstereo(dev,&tvaudio[i]);
625 mode = saa7134_tvaudio_rx2mode(rx);
626 } else {
627 mode = dev->thread.mode;
628 }
629 if (lastmode != mode) {
630 tvaudio_setstereo(dev,&tvaudio[audio],mode);
631 lastmode = mode;
632 }
633 }
634 }
635
636 done:
637 complete_and_exit(&dev->thread.exit, 0);
638 return 0;
639}
640
641/* ------------------------------------------------------------------ */
642/* saa7133 / saa7135 code */
643
644static char *stdres[0x20] = {
645 [0x00] = "no standard detected",
646 [0x01] = "B/G (in progress)",
647 [0x02] = "D/K (in progress)",
648 [0x03] = "M (in progress)",
649
650 [0x04] = "B/G A2",
651 [0x05] = "B/G NICAM",
652 [0x06] = "D/K A2 (1)",
653 [0x07] = "D/K A2 (2)",
654 [0x08] = "D/K A2 (3)",
655 [0x09] = "D/K NICAM",
656 [0x0a] = "L NICAM",
657 [0x0b] = "I NICAM",
658
659 [0x0c] = "M Korea",
660 [0x0d] = "M BTSC ",
661 [0x0e] = "M EIAJ",
662
663 [0x0f] = "FM radio / IF 10.7 / 50 deemp",
664 [0x10] = "FM radio / IF 10.7 / 75 deemp",
665 [0x11] = "FM radio / IF sel / 50 deemp",
666 [0x12] = "FM radio / IF sel / 75 deemp",
667
668 [0x13 ... 0x1e ] = "unknown",
669 [0x1f] = "??? [in progress]",
670};
671
672#define DSP_RETRY 32
673#define DSP_DELAY 16
674
675static inline int saa_dsp_wait_bit(struct saa7134_dev *dev, int bit)
676{
677 int state, count = DSP_RETRY;
678
679 state = saa_readb(SAA7135_DSP_RWSTATE);
680 if (unlikely(state & SAA7135_DSP_RWSTATE_ERR)) {
681 printk("%s: dsp access error\n",dev->name);
682 /* FIXME: send ack ... */
683 return -EIO;
684 }
685 while (0 == (state & bit)) {
686 if (unlikely(0 == count)) {
687 printk("%s: dsp access wait timeout [bit=%s]\n",
688 dev->name,
689 (bit & SAA7135_DSP_RWSTATE_WRR) ? "WRR" :
690 (bit & SAA7135_DSP_RWSTATE_RDB) ? "RDB" :
691 (bit & SAA7135_DSP_RWSTATE_IDA) ? "IDA" :
692 "???");
693 return -EIO;
694 }
695 saa_wait(DSP_DELAY);
696 state = saa_readb(SAA7135_DSP_RWSTATE);
697 count--;
698 }
699 return 0;
700}
701
1da177e4
LT		 702
703int saa_dsp_writel(struct saa7134_dev *dev, int reg, u32 value)
704{
705 int err;
706
707 d2printk("dsp write reg 0x%x = 0x%06x\n",reg<<2,value);
708 err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR);
709 if (err < 0)
710 return err;
711 saa_writel(reg,value);
712 err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR);
713 if (err < 0)
714 return err;
715 return 0;
716}
717
718static int getstereo_7133(struct saa7134_dev *dev)
719{
720 int retval = V4L2_TUNER_SUB_MONO;
721 u32 value;
722
723 value = saa_readl(0x528 >> 2);
724 if (value & 0x20)
725 retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
726 if (value & 0x40)
727 retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
728 return retval;
729}
730
731static int mute_input_7133(struct saa7134_dev *dev)
732{
733 u32 reg = 0;
330a115a 734 u32 xbarin, xbarout;
1da177e4 735 int mask;
330a115a 736 struct saa7134_input *in;
1da177e4 737
330a115a 738 xbarin = 0x03;
1da177e4
LT		 739 switch (dev->input->amux) {
740 case TV:
741 reg = 0x02;
330a115a 742 xbarin = 0;
1da177e4
LT		 743 break;
744 case LINE1:
745 reg = 0x00;
746 break;
747 case LINE2:
748 case LINE2_LEFT:
330a115a 749 reg = 0x09;
1da177e4
LT		 750 break;
751 }
330a115a
MCC		 752 saa_dsp_writel(dev, 0x464 >> 2, xbarin);
753 if (dev->ctl_mute) {
1da177e4 754 reg = 0x07;
330a115a
MCC		 755 xbarout = 0xbbbbbb;
756 } else
757 xbarout = 0xbbbb10;
758 saa_dsp_writel(dev, 0x46c >> 2, xbarout);
759
1da177e4
LT		 760 saa_writel(0x594 >> 2, reg);
761
330a115a 762
1da177e4 763 /* switch gpio-connected external audio mux */
4ac97914
MCC		 764 if (0 != card(dev).gpiomask) {
765 mask = card(dev).gpiomask;
330a115a
MCC		 766
767 if (card(dev).mute.name && dev->ctl_mute)
768 in = &card(dev).mute;
769 else
770 in = dev->input;
771
4ac97914
MCC		 772 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, mask, mask);
773 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, mask, in->gpio);
774 saa7134_track_gpio(dev,in->name);
1da177e4 775 }
330a115a 776
1da177e4
LT		 777 return 0;
778}
779
780static int tvaudio_thread_ddep(void *data)
781{
782 struct saa7134_dev *dev = data;
783 u32 value, norms, clock;
784
785 daemonize("%s", dev->name);
786 allow_signal(SIGTERM);
787
788 clock = saa7134_boards[dev->board].audio_clock;
789 if (UNSET != audio_clock_override)
790 clock = audio_clock_override;
791 saa_writel(0x598 >> 2, clock);
792
793 /* unmute */
794 saa_dsp_writel(dev, 0x474 >> 2, 0x00);
795 saa_dsp_writel(dev, 0x450 >> 2, 0x00);
796
797 for (;;) {
798 tvaudio_sleep(dev,-1);
799 if (dev->thread.shutdown || signal_pending(current))
800 goto done;
801
802 restart:
803 dev->thread.scan1 = dev->thread.scan2;
804 dprintk("tvaudio thread scan start [%d]\n",dev->thread.scan1);
805
806 if (audio_ddep >= 0x04 && audio_ddep <= 0x0e) {
807 /* insmod option override */
808 norms = (audio_ddep << 2) | 0x01;
809 dprintk("ddep override: %s\n",stdres[audio_ddep]);
810 } else if (&card(dev).radio == dev->input) {
811 dprintk("FM Radio\n");
0f79c363
HH		 812 if (dev->tuner_type == TUNER_PHILIPS_TDA8290) {
813 norms = (0x11 << 2) | 0x01;
814 saa_dsp_writel(dev, 0x42c >> 2, 0x729555);
815 } else {
816 norms = (0x0f << 2) | 0x01;
817 }
1da177e4
LT		 818 } else {
819 /* (let chip) scan for sound carrier */
820 norms = 0;
17b10a73
HH		 821 if (dev->tvnorm->id & (V4L2_STD_B | V4L2_STD_GH))
822 norms |= 0x04;
823 if (dev->tvnorm->id & V4L2_STD_PAL_I)
824 norms |= 0x20;
825 if (dev->tvnorm->id & V4L2_STD_DK)
826 norms |= 0x08;
827 if (dev->tvnorm->id & V4L2_STD_MN)
828 norms |= 0x40;
829 if (dev->tvnorm->id & (V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC))
830 norms |= 0x10;
1da177e4
LT		 831 if (0 == norms)
832 norms = 0x7c; /* all */
833 dprintk("scanning:%s%s%s%s%s\n",
834 (norms & 0x04) ? " B/G" : "",
835 (norms & 0x08) ? " D/K" : "",
836 (norms & 0x10) ? " L/L'" : "",
837 (norms & 0x20) ? " I" : "",
838 (norms & 0x40) ? " M" : "");
839 }
840
841 /* kick automatic standard detection */
842 saa_dsp_writel(dev, 0x454 >> 2, 0);
843 saa_dsp_writel(dev, 0x454 >> 2, norms | 0x80);
844
845 /* setup crossbars */
846 saa_dsp_writel(dev, 0x464 >> 2, 0x000000);
847 saa_dsp_writel(dev, 0x470 >> 2, 0x101010);
848
849 if (tvaudio_sleep(dev,3000))
850 goto restart;
851 value = saa_readl(0x528 >> 2) & 0xffffff;
852
853 dprintk("tvaudio thread status: 0x%x [%s%s%s]\n",
854 value, stdres[value & 0x1f],
855 (value & 0x000020) ? ",stereo" : "",
856 (value & 0x000040) ? ",dual" : "");
857 dprintk("detailed status: "
858 "%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s\n",
859 (value & 0x000080) ? " A2/EIAJ pilot tone " : "",
860 (value & 0x000100) ? " A2/EIAJ dual " : "",
861 (value & 0x000200) ? " A2/EIAJ stereo " : "",
862 (value & 0x000400) ? " A2/EIAJ noise mute " : "",
863
864 (value & 0x000800) ? " BTSC/FM radio pilot " : "",
865 (value & 0x001000) ? " SAP carrier " : "",
866 (value & 0x002000) ? " BTSC stereo noise mute " : "",
867 (value & 0x004000) ? " SAP noise mute " : "",
868 (value & 0x008000) ? " VDSP " : "",
869
870 (value & 0x010000) ? " NICST " : "",
871 (value & 0x020000) ? " NICDU " : "",
872 (value & 0x040000) ? " NICAM muted " : "",
873 (value & 0x080000) ? " NICAM reserve sound " : "",
874
875 (value & 0x100000) ? " init done " : "");
876 }
877
878 done:
879 complete_and_exit(&dev->thread.exit, 0);
880 return 0;
881}
882
883/* ------------------------------------------------------------------ */
884/* common stuff + external entry points */
885
886static void saa7134_enable_i2s(struct saa7134_dev *dev)
887{
888 int i2s_format;
889
890 if (!card_is_empress(dev))
891 return;
892 i2s_format = (dev->input->amux == TV) ? 0x00 : 0x01;
893
894 /* enable I2S audio output for the mpeg encoder */
895 saa_writeb(SAA7134_I2S_OUTPUT_SELECT, 0x80);
896 saa_writeb(SAA7134_I2S_OUTPUT_FORMAT, i2s_format);
897 saa_writeb(SAA7134_I2S_OUTPUT_LEVEL, 0x0F);
898 saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x01);
899}
900
901int saa7134_tvaudio_rx2mode(u32 rx)
902{
903 u32 mode;
904
905 mode = V4L2_TUNER_MODE_MONO;
906 if (rx & V4L2_TUNER_SUB_STEREO)
907 mode = V4L2_TUNER_MODE_STEREO;
908 else if (rx & V4L2_TUNER_SUB_LANG1)
909 mode = V4L2_TUNER_MODE_LANG1;
910 else if (rx & V4L2_TUNER_SUB_LANG2)
911 mode = V4L2_TUNER_MODE_LANG2;
912 return mode;
913}
914
915void saa7134_tvaudio_setmute(struct saa7134_dev *dev)
916{
917 switch (dev->pci->device) {
918 case PCI_DEVICE_ID_PHILIPS_SAA7130:
919 case PCI_DEVICE_ID_PHILIPS_SAA7134:
920 mute_input_7134(dev);
921 break;
922 case PCI_DEVICE_ID_PHILIPS_SAA7133:
923 case PCI_DEVICE_ID_PHILIPS_SAA7135:
924 mute_input_7133(dev);
925 break;
926 }
927}
928
929void saa7134_tvaudio_setinput(struct saa7134_dev *dev,
930 struct saa7134_input *in)
931{
932 dev->input = in;
933 switch (dev->pci->device) {
934 case PCI_DEVICE_ID_PHILIPS_SAA7130:
935 case PCI_DEVICE_ID_PHILIPS_SAA7134:
936 mute_input_7134(dev);
937 break;
938 case PCI_DEVICE_ID_PHILIPS_SAA7133:
939 case PCI_DEVICE_ID_PHILIPS_SAA7135:
940 mute_input_7133(dev);
941 break;
942 }
943 saa7134_enable_i2s(dev);
944}
945
946void saa7134_tvaudio_setvolume(struct saa7134_dev *dev, int level)
947{
948 switch (dev->pci->device) {
949 case PCI_DEVICE_ID_PHILIPS_SAA7134:
950 saa_writeb(SAA7134_CHANNEL1_LEVEL, level & 0x1f);
951 saa_writeb(SAA7134_CHANNEL2_LEVEL, level & 0x1f);
952 saa_writeb(SAA7134_NICAM_LEVEL_ADJUST, level & 0x1f);
953 break;
954 }
955}
956
957int saa7134_tvaudio_getstereo(struct saa7134_dev *dev)
958{
959 int retval = V4L2_TUNER_SUB_MONO;
960
961 switch (dev->pci->device) {
962 case PCI_DEVICE_ID_PHILIPS_SAA7134:
963 if (dev->tvaudio)
964 retval = tvaudio_getstereo(dev,dev->tvaudio);
965 break;
966 case PCI_DEVICE_ID_PHILIPS_SAA7133:
967 case PCI_DEVICE_ID_PHILIPS_SAA7135:
968 retval = getstereo_7133(dev);
969 break;
970 }
971 return retval;
972}
973
974int saa7134_tvaudio_init2(struct saa7134_dev *dev)
975{
976 DECLARE_MUTEX_LOCKED(sem);
977 int (*my_thread)(void *data) = NULL;
978
979 switch (dev->pci->device) {
980 case PCI_DEVICE_ID_PHILIPS_SAA7134:
981 my_thread = tvaudio_thread;
982 break;
983 case PCI_DEVICE_ID_PHILIPS_SAA7133:
984 case PCI_DEVICE_ID_PHILIPS_SAA7135:
985 my_thread = tvaudio_thread_ddep;
986 break;
987 }
988
989 dev->thread.pid = -1;
990 if (my_thread) {
991 /* start tvaudio thread */
992 init_waitqueue_head(&dev->thread.wq);
993 init_completion(&dev->thread.exit);
994 dev->thread.pid = kernel_thread(my_thread,dev,0);
995 if (dev->thread.pid < 0)
996 printk(KERN_WARNING "%s: kernel_thread() failed\n",
997 dev->name);
998 saa7134_tvaudio_do_scan(dev);
999 }
1000
1001 saa7134_enable_i2s(dev);
1002 return 0;
1003}
1004
1005int saa7134_tvaudio_fini(struct saa7134_dev *dev)
1006{
1007 /* shutdown tvaudio thread */
58e78475 1008 if (dev->thread.pid > 0) {
1da177e4
LT		 1009 dev->thread.shutdown = 1;
1010 wake_up_interruptible(&dev->thread.wq);
1011 wait_for_completion(&dev->thread.exit);
1012 }
1013 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, 0x00); /* LINE1 */
1014 return 0;
1015}
1016
1017int saa7134_tvaudio_do_scan(struct saa7134_dev *dev)
1018{
17b10a73
HH		 1019 if (dev->input->amux != TV) {
1020 dprintk("sound IF not in use, skipping scan\n");
1021 dev->automute = 0;
1022 saa7134_tvaudio_setmute(dev);
1023 } else if (dev->thread.pid >= 0) {
1da177e4
LT		 1024 dev->thread.mode = UNSET;
1025 dev->thread.scan2++;
1026 wake_up_interruptible(&dev->thread.wq);
1027 } else {
1028 dev->automute = 0;
1029 saa7134_tvaudio_setmute(dev);
1030 }
1031 return 0;
1032}
1033
79dd0c69 1034EXPORT_SYMBOL(saa_dsp_writel);
e9f964da 1035EXPORT_SYMBOL(saa7134_tvaudio_setmute);
79dd0c69 1036
1da177e4
LT		 1037/* ----------------------------------------------------------- */
1038/*
1039 * Local variables:
1040 * c-basic-offset: 8
1041 * End:
1042 */
79dd0c69 1043
Linux kernel - Deliverables
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