1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * |
4 | * device driver for philips saa7134 based TV cards |
5 | * tv audio decoder (fm stereo, nicam, ...) |
6 | * |
7 | * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs] |
8 | */ |
9 | |
10 | #include "saa7134.h" |
11 | #include "saa7134-reg.h" |
12 | |
13 | #include <linux/init.h> |
14 | #include <linux/list.h> |
15 | #include <linux/module.h> |
16 | #include <linux/kernel.h> |
17 | #include <linux/kthread.h> |
18 | #include <linux/delay.h> |
19 | #include <linux/freezer.h> |
20 | #include <asm/div64.h> |
21 | |
22 | /* ------------------------------------------------------------------ */ |
23 | |
24 | static unsigned int audio_debug; |
25 | module_param(audio_debug, int, 0644); |
26 | MODULE_PARM_DESC(audio_debug,"enable debug messages [tv audio]" ); |
27 | |
28 | static unsigned int audio_ddep; |
29 | module_param(audio_ddep, int, 0644); |
30 | MODULE_PARM_DESC(audio_ddep,"audio ddep overwrite" ); |
31 | |
32 | static int audio_clock_override = UNSET; |
33 | module_param(audio_clock_override, int, 0644); |
34 | |
35 | static int audio_clock_tweak; |
36 | module_param(audio_clock_tweak, int, 0644); |
37 | MODULE_PARM_DESC(audio_clock_tweak, "Audio clock tick fine tuning for cards with audio crystal that's slightly off (range [-1024 .. 1024])" ); |
38 | |
39 | #define audio_dbg(level, fmt, arg...) do { \ |
40 | if (audio_debug >= level) \ |
41 | printk(KERN_DEBUG pr_fmt("audio: " fmt), ## arg); \ |
42 | } while (0) |
43 | |
44 | /* msecs */ |
45 | #define SCAN_INITIAL_DELAY 1000 |
46 | #define SCAN_SAMPLE_DELAY 200 |
47 | #define SCAN_SUBCARRIER_DELAY 2000 |
48 | |
49 | /* ------------------------------------------------------------------ */ |
50 | /* saa7134 code */ |
51 | |
52 | static struct mainscan { |
53 | char *name; |
54 | v4l2_std_id std; |
55 | int carr; |
56 | } mainscan[] = { |
57 | { |
58 | .name = "MN" , |
59 | .std = V4L2_STD_MN, |
60 | .carr = 4500, |
61 | },{ |
62 | .name = "BGH" , |
63 | .std = V4L2_STD_B | V4L2_STD_GH, |
64 | .carr = 5500, |
65 | },{ |
66 | .name = "I" , |
67 | .std = V4L2_STD_PAL_I, |
68 | .carr = 6000, |
69 | },{ |
70 | .name = "DKL" , |
71 | .std = V4L2_STD_DK | V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC, |
72 | .carr = 6500, |
73 | } |
74 | }; |
75 | |
76 | static struct saa7134_tvaudio tvaudio[] = { |
77 | { |
78 | .name = "PAL-B/G FM-stereo" , |
79 | .std = V4L2_STD_PAL_BG, |
80 | .mode = TVAUDIO_FM_BG_STEREO, |
81 | .carr1 = 5500, |
82 | .carr2 = 5742, |
83 | },{ |
84 | .name = "PAL-D/K1 FM-stereo" , |
85 | .std = V4L2_STD_PAL_DK, |
86 | .carr1 = 6500, |
87 | .carr2 = 6258, |
88 | .mode = TVAUDIO_FM_BG_STEREO, |
89 | },{ |
90 | .name = "PAL-D/K2 FM-stereo" , |
91 | .std = V4L2_STD_PAL_DK, |
92 | .carr1 = 6500, |
93 | .carr2 = 6742, |
94 | .mode = TVAUDIO_FM_BG_STEREO, |
95 | },{ |
96 | .name = "PAL-D/K3 FM-stereo" , |
97 | .std = V4L2_STD_PAL_DK, |
98 | .carr1 = 6500, |
99 | .carr2 = 5742, |
100 | .mode = TVAUDIO_FM_BG_STEREO, |
101 | },{ |
102 | .name = "PAL-B/G NICAM" , |
103 | .std = V4L2_STD_PAL_BG, |
104 | .carr1 = 5500, |
105 | .carr2 = 5850, |
106 | .mode = TVAUDIO_NICAM_FM, |
107 | },{ |
108 | .name = "PAL-I NICAM" , |
109 | .std = V4L2_STD_PAL_I, |
110 | .carr1 = 6000, |
111 | .carr2 = 6552, |
112 | .mode = TVAUDIO_NICAM_FM, |
113 | },{ |
114 | .name = "PAL-D/K NICAM" , |
115 | .std = V4L2_STD_PAL_DK, |
116 | .carr1 = 6500, |
117 | .carr2 = 5850, |
118 | .mode = TVAUDIO_NICAM_FM, |
119 | },{ |
120 | .name = "SECAM-L NICAM" , |
121 | .std = V4L2_STD_SECAM_L, |
122 | .carr1 = 6500, |
123 | .carr2 = 5850, |
124 | .mode = TVAUDIO_NICAM_AM, |
125 | },{ |
126 | .name = "SECAM-D/K NICAM" , |
127 | .std = V4L2_STD_SECAM_DK, |
128 | .carr1 = 6500, |
129 | .carr2 = 5850, |
130 | .mode = TVAUDIO_NICAM_FM, |
131 | },{ |
132 | .name = "NTSC-A2 FM-stereo" , |
133 | .std = V4L2_STD_NTSC, |
134 | .carr1 = 4500, |
135 | .carr2 = 4724, |
136 | .mode = TVAUDIO_FM_K_STEREO, |
137 | },{ |
138 | .name = "NTSC-M" , |
139 | .std = V4L2_STD_NTSC, |
140 | .carr1 = 4500, |
141 | .carr2 = -1, |
142 | .mode = TVAUDIO_FM_MONO, |
143 | } |
144 | }; |
145 | #define TVAUDIO ARRAY_SIZE(tvaudio) |
146 | |
147 | /* ------------------------------------------------------------------ */ |
148 | |
149 | static u32 tvaudio_carr2reg(u32 carrier) |
150 | { |
151 | u64 a = carrier; |
152 | |
153 | a <<= 24; |
154 | do_div(a,12288); |
155 | return a; |
156 | } |
157 | |
158 | static void tvaudio_setcarrier(struct saa7134_dev *dev, |
159 | int primary, int secondary) |
160 | { |
161 | if (-1 == secondary) |
162 | secondary = primary; |
163 | saa_writel(SAA7134_CARRIER1_FREQ0 >> 2, tvaudio_carr2reg(primary)); |
164 | saa_writel(SAA7134_CARRIER2_FREQ0 >> 2, tvaudio_carr2reg(secondary)); |
165 | } |
166 | |
167 | #define SAA7134_MUTE_MASK 0xbb |
168 | #define SAA7134_MUTE_ANALOG 0x04 |
169 | #define SAA7134_MUTE_I2S 0x40 |
170 | |
171 | static void mute_input_7134(struct saa7134_dev *dev) |
172 | { |
173 | unsigned int mute; |
174 | struct saa7134_input *in; |
175 | int ausel=0, ics=0, ocs=0; |
176 | int mask; |
177 | |
178 | /* look what is to do ... */ |
179 | in = dev->input; |
180 | mute = (dev->ctl_mute || |
181 | (dev->automute && (&card(dev).radio) != in)); |
182 | if (card(dev).mute.type) { |
183 | /* |
184 | * 7130 - we'll mute using some unconnected audio input |
185 | * 7134 - we'll probably should switch external mux with gpio |
186 | */ |
187 | if (mute) |
188 | in = &card(dev).mute; |
189 | } |
190 | |
191 | if (dev->hw_mute == mute && |
192 | dev->hw_input == in && !dev->insuspend) { |
193 | audio_dbg(1, "mute/input: nothing to do [mute=%d,input=%s]\n" , |
194 | mute, saa7134_input_name[in->type]); |
195 | return; |
196 | } |
197 | |
198 | audio_dbg(1, "ctl_mute=%d automute=%d input=%s => mute=%d input=%s\n" , |
199 | dev->ctl_mute, dev->automute, |
200 | saa7134_input_name[dev->input->type], mute, |
201 | saa7134_input_name[in->type]); |
202 | dev->hw_mute = mute; |
203 | dev->hw_input = in; |
204 | |
205 | if (PCI_DEVICE_ID_PHILIPS_SAA7134 == dev->pci->device) |
206 | /* 7134 mute */ |
207 | saa_writeb(SAA7134_AUDIO_MUTE_CTRL, mute ? |
208 | SAA7134_MUTE_MASK | |
209 | SAA7134_MUTE_ANALOG | |
210 | SAA7134_MUTE_I2S : |
211 | SAA7134_MUTE_MASK); |
212 | |
213 | /* switch internal audio mux */ |
214 | switch (in->amux) { |
215 | case TV: ausel=0xc0; ics=0x00; ocs=0x02; break; |
216 | case LINE1: ausel=0x80; ics=0x00; ocs=0x00; break; |
217 | case LINE2: ausel=0x80; ics=0x08; ocs=0x01; break; |
218 | case LINE2_LEFT: ausel=0x80; ics=0x08; ocs=0x05; break; |
219 | } |
220 | saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, ausel); |
221 | saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x08, ics); |
222 | saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, ocs); |
223 | // for oss, we need to change the clock configuration |
224 | if (in->amux == TV) |
225 | saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x00); |
226 | else |
227 | saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x01); |
228 | |
229 | /* switch gpio-connected external audio mux */ |
230 | if (0 == card(dev).gpiomask) |
231 | return; |
232 | |
233 | mask = card(dev).gpiomask; |
234 | saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, mask, mask); |
235 | saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, mask, in->gpio); |
236 | saa7134_track_gpio(dev, msg: saa7134_input_name[in->type]); |
237 | } |
238 | |
239 | static void tvaudio_setmode(struct saa7134_dev *dev, |
240 | struct saa7134_tvaudio *audio, |
241 | char *note) |
242 | { |
243 | int acpf, tweak = 0; |
244 | |
245 | if (dev->tvnorm->id == V4L2_STD_NTSC) { |
246 | acpf = 0x19066; |
247 | } else { |
248 | acpf = 0x1e000; |
249 | } |
250 | if (audio_clock_tweak > -1024 && audio_clock_tweak < 1024) |
251 | tweak = audio_clock_tweak; |
252 | |
253 | if (note) |
254 | audio_dbg(1, "tvaudio_setmode: %s %s [%d.%03d/%d.%03d MHz] acpf=%d%+d\n" , |
255 | note, audio->name, |
256 | audio->carr1 / 1000, audio->carr1 % 1000, |
257 | audio->carr2 / 1000, audio->carr2 % 1000, |
258 | acpf, tweak); |
259 | |
260 | acpf += tweak; |
261 | saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD0, (acpf & 0x0000ff) >> 0); |
262 | saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD1, (acpf & 0x00ff00) >> 8); |
263 | saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD2, (acpf & 0x030000) >> 16); |
264 | tvaudio_setcarrier(dev,primary: audio->carr1,secondary: audio->carr2); |
265 | |
266 | switch (audio->mode) { |
267 | case TVAUDIO_FM_MONO: |
268 | case TVAUDIO_FM_BG_STEREO: |
269 | saa_writeb(SAA7134_DEMODULATOR, 0x00); |
270 | saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00); |
271 | saa_writeb(SAA7134_FM_DEEMPHASIS, 0x22); |
272 | saa_writeb(SAA7134_FM_DEMATRIX, 0x80); |
273 | saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa0); |
274 | break; |
275 | case TVAUDIO_FM_K_STEREO: |
276 | saa_writeb(SAA7134_DEMODULATOR, 0x00); |
277 | saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x01); |
278 | saa_writeb(SAA7134_FM_DEEMPHASIS, 0x22); |
279 | saa_writeb(SAA7134_FM_DEMATRIX, 0x80); |
280 | saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa0); |
281 | break; |
282 | case TVAUDIO_NICAM_FM: |
283 | saa_writeb(SAA7134_DEMODULATOR, 0x10); |
284 | saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00); |
285 | saa_writeb(SAA7134_FM_DEEMPHASIS, 0x44); |
286 | saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa1); |
287 | saa_writeb(SAA7134_NICAM_CONFIG, 0x00); |
288 | break; |
289 | case TVAUDIO_NICAM_AM: |
290 | saa_writeb(SAA7134_DEMODULATOR, 0x12); |
291 | saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00); |
292 | saa_writeb(SAA7134_FM_DEEMPHASIS, 0x44); |
293 | saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa1); |
294 | saa_writeb(SAA7134_NICAM_CONFIG, 0x00); |
295 | break; |
296 | case TVAUDIO_FM_SAT_STEREO: |
297 | /* not implemented (yet) */ |
298 | break; |
299 | } |
300 | } |
301 | |
302 | static int tvaudio_sleep(struct saa7134_dev *dev, int timeout) |
303 | { |
304 | if (dev->thread.scan1 == dev->thread.scan2 && |
305 | !kthread_should_stop()) { |
306 | if (timeout < 0) { |
307 | set_current_state(TASK_INTERRUPTIBLE); |
308 | schedule(); |
309 | } else { |
310 | schedule_timeout_interruptible |
311 | (timeout: msecs_to_jiffies(m: timeout)); |
312 | } |
313 | } |
314 | return dev->thread.scan1 != dev->thread.scan2; |
315 | } |
316 | |
317 | static int tvaudio_checkcarrier(struct saa7134_dev *dev, struct mainscan *scan) |
318 | { |
319 | __s32 left,right,value; |
320 | |
321 | if (!(dev->tvnorm->id & scan->std)) { |
322 | audio_dbg(1, "skipping %d.%03d MHz [%4s]\n" , |
323 | scan->carr / 1000, scan->carr % 1000, scan->name); |
324 | return 0; |
325 | } |
326 | |
327 | if (audio_debug > 1) { |
328 | int i; |
329 | audio_dbg(1, "debug %d:" , scan->carr); |
330 | for (i = -150; i <= 150; i += 30) { |
331 | tvaudio_setcarrier(dev,primary: scan->carr+i,secondary: scan->carr+i); |
332 | saa_readl(SAA7134_LEVEL_READOUT1 >> 2); |
333 | if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY)) |
334 | return -1; |
335 | value = saa_readl(SAA7134_LEVEL_READOUT1 >> 2); |
336 | if (0 == i) |
337 | pr_cont(" # %6d # " , value >> 16); |
338 | else |
339 | pr_cont(" %6d" , value >> 16); |
340 | } |
341 | pr_cont("\n" ); |
342 | } |
343 | |
344 | tvaudio_setcarrier(dev,primary: scan->carr-90,secondary: scan->carr-90); |
345 | saa_readl(SAA7134_LEVEL_READOUT1 >> 2); |
346 | if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY)) |
347 | return -1; |
348 | left = saa_readl(SAA7134_LEVEL_READOUT1 >> 2); |
349 | |
350 | tvaudio_setcarrier(dev,primary: scan->carr+90,secondary: scan->carr+90); |
351 | saa_readl(SAA7134_LEVEL_READOUT1 >> 2); |
352 | if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY)) |
353 | return -1; |
354 | right = saa_readl(SAA7134_LEVEL_READOUT1 >> 2); |
355 | |
356 | left >>= 16; |
357 | right >>= 16; |
358 | value = left > right ? left - right : right - left; |
359 | audio_dbg(1, "scanning %d.%03d MHz [%4s] => dc is %5d [%d/%d]\n" , |
360 | scan->carr / 1000, scan->carr % 1000, |
361 | scan->name, value, left, right); |
362 | return value; |
363 | } |
364 | |
365 | |
366 | static int tvaudio_getstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio) |
367 | { |
368 | __u32 idp, nicam, nicam_status; |
369 | int retval = -1; |
370 | |
371 | switch (audio->mode) { |
372 | case TVAUDIO_FM_MONO: |
373 | return V4L2_TUNER_SUB_MONO; |
374 | case TVAUDIO_FM_K_STEREO: |
375 | case TVAUDIO_FM_BG_STEREO: |
376 | idp = (saa_readb(SAA7134_IDENT_SIF) & 0xe0) >> 5; |
377 | audio_dbg(1, "getstereo: fm/stereo: idp=0x%x\n" , idp); |
378 | if (0x03 == (idp & 0x03)) |
379 | retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; |
380 | else if (0x05 == (idp & 0x05)) |
381 | retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO; |
382 | else if (0x01 == (idp & 0x01)) |
383 | retval = V4L2_TUNER_SUB_MONO; |
384 | break; |
385 | case TVAUDIO_FM_SAT_STEREO: |
386 | /* not implemented (yet) */ |
387 | break; |
388 | case TVAUDIO_NICAM_FM: |
389 | case TVAUDIO_NICAM_AM: |
390 | nicam = saa_readb(SAA7134_AUDIO_STATUS); |
391 | audio_dbg(1, "getstereo: nicam=0x%x\n" , nicam); |
392 | if (nicam & 0x1) { |
393 | nicam_status = saa_readb(SAA7134_NICAM_STATUS); |
394 | audio_dbg(1, "getstereo: nicam_status=0x%x\n" , |
395 | nicam_status); |
396 | |
397 | switch (nicam_status & 0x03) { |
398 | case 0x01: |
399 | retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; |
400 | break; |
401 | case 0x02: |
402 | retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO; |
403 | break; |
404 | default: |
405 | retval = V4L2_TUNER_SUB_MONO; |
406 | } |
407 | } else { |
408 | /* No nicam detected */ |
409 | } |
410 | break; |
411 | } |
412 | if (retval != -1) |
413 | audio_dbg(1, "found audio subchannels:%s%s%s%s\n" , |
414 | (retval & V4L2_TUNER_SUB_MONO) ? " mono" : "" , |
415 | (retval & V4L2_TUNER_SUB_STEREO) ? " stereo" : "" , |
416 | (retval & V4L2_TUNER_SUB_LANG1) ? " lang1" : "" , |
417 | (retval & V4L2_TUNER_SUB_LANG2) ? " lang2" : "" ); |
418 | return retval; |
419 | } |
420 | |
421 | static int tvaudio_setstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio, |
422 | u32 mode) |
423 | { |
424 | static char *name[] = { |
425 | [ V4L2_TUNER_MODE_MONO ] = "mono" , |
426 | [ V4L2_TUNER_MODE_STEREO ] = "stereo" , |
427 | [ V4L2_TUNER_MODE_LANG1 ] = "lang1" , |
428 | [ V4L2_TUNER_MODE_LANG2 ] = "lang2" , |
429 | [ V4L2_TUNER_MODE_LANG1_LANG2 ] = "lang1+lang2" , |
430 | }; |
431 | static u32 fm[] = { |
432 | [ V4L2_TUNER_MODE_MONO ] = 0x00, /* ch1 */ |
433 | [ V4L2_TUNER_MODE_STEREO ] = 0x80, /* auto */ |
434 | [ V4L2_TUNER_MODE_LANG1 ] = 0x00, /* ch1 */ |
435 | [ V4L2_TUNER_MODE_LANG2 ] = 0x01, /* ch2 */ |
436 | [ V4L2_TUNER_MODE_LANG1_LANG2 ] = 0x80, /* auto */ |
437 | }; |
438 | u32 reg; |
439 | |
440 | switch (audio->mode) { |
441 | case TVAUDIO_FM_MONO: |
442 | /* nothing to do ... */ |
443 | break; |
444 | case TVAUDIO_FM_K_STEREO: |
445 | case TVAUDIO_FM_BG_STEREO: |
446 | case TVAUDIO_NICAM_AM: |
447 | case TVAUDIO_NICAM_FM: |
448 | audio_dbg(1, "setstereo [fm] => %s\n" , |
449 | name[mode % ARRAY_SIZE(name)]); |
450 | reg = fm[ mode % ARRAY_SIZE(fm) ]; |
451 | saa_writeb(SAA7134_FM_DEMATRIX, reg); |
452 | break; |
453 | case TVAUDIO_FM_SAT_STEREO: |
454 | /* Not implemented */ |
455 | break; |
456 | } |
457 | return 0; |
458 | } |
459 | |
460 | static int tvaudio_thread(void *data) |
461 | { |
462 | struct saa7134_dev *dev = data; |
463 | int carr_vals[ARRAY_SIZE(mainscan)]; |
464 | unsigned int i, audio, nscan; |
465 | int max1,max2,carrier,rx,mode,lastmode,default_carrier; |
466 | |
467 | set_freezable(); |
468 | |
469 | for (;;) { |
470 | tvaudio_sleep(dev,timeout: -1); |
471 | if (kthread_should_stop()) |
472 | goto done; |
473 | |
474 | restart: |
475 | try_to_freeze(); |
476 | |
477 | dev->thread.scan1 = dev->thread.scan2; |
478 | audio_dbg(1, "tvaudio thread scan start [%d]\n" , |
479 | dev->thread.scan1); |
480 | dev->tvaudio = NULL; |
481 | |
482 | saa_writeb(SAA7134_MONITOR_SELECT, 0xa0); |
483 | saa_writeb(SAA7134_FM_DEMATRIX, 0x80); |
484 | |
485 | if (dev->ctl_automute) |
486 | dev->automute = 1; |
487 | |
488 | mute_input_7134(dev); |
489 | |
490 | /* give the tuner some time */ |
491 | if (tvaudio_sleep(dev,SCAN_INITIAL_DELAY)) |
492 | goto restart; |
493 | |
494 | max1 = 0; |
495 | max2 = 0; |
496 | nscan = 0; |
497 | carrier = 0; |
498 | default_carrier = 0; |
499 | for (i = 0; i < ARRAY_SIZE(mainscan); i++) { |
500 | if (!(dev->tvnorm->id & mainscan[i].std)) |
501 | continue; |
502 | if (!default_carrier) |
503 | default_carrier = mainscan[i].carr; |
504 | nscan++; |
505 | } |
506 | |
507 | if (1 == nscan) { |
508 | /* only one candidate -- skip scan ;) */ |
509 | audio_dbg(1, "only one main carrier candidate - skipping scan\n" ); |
510 | max1 = 12345; |
511 | carrier = default_carrier; |
512 | } else { |
513 | /* scan for the main carrier */ |
514 | saa_writeb(SAA7134_MONITOR_SELECT,0x00); |
515 | tvaudio_setmode(dev,audio: &tvaudio[0],NULL); |
516 | for (i = 0; i < ARRAY_SIZE(mainscan); i++) { |
517 | carr_vals[i] = tvaudio_checkcarrier(dev, scan: mainscan+i); |
518 | if (dev->thread.scan1 != dev->thread.scan2) |
519 | goto restart; |
520 | } |
521 | for (max1 = 0, max2 = 0, i = 0; i < ARRAY_SIZE(mainscan); i++) { |
522 | if (max1 < carr_vals[i]) { |
523 | max2 = max1; |
524 | max1 = carr_vals[i]; |
525 | carrier = mainscan[i].carr; |
526 | } else if (max2 < carr_vals[i]) { |
527 | max2 = carr_vals[i]; |
528 | } |
529 | } |
530 | } |
531 | |
532 | if (0 != carrier && max1 > 2000 && max1 > max2*3) { |
533 | /* found good carrier */ |
534 | audio_dbg(1, "found %s main sound carrier @ %d.%03d MHz [%d/%d]\n" , |
535 | dev->tvnorm->name, carrier/1000, carrier%1000, |
536 | max1, max2); |
537 | dev->last_carrier = carrier; |
538 | dev->automute = 0; |
539 | |
540 | } else if (0 != dev->last_carrier) { |
541 | /* no carrier -- try last detected one as fallback */ |
542 | carrier = dev->last_carrier; |
543 | audio_dbg(1, "audio carrier scan failed, using %d.%03d MHz [last detected]\n" , |
544 | carrier/1000, carrier%1000); |
545 | dev->automute = 1; |
546 | |
547 | } else { |
548 | /* no carrier + no fallback -- use default */ |
549 | carrier = default_carrier; |
550 | audio_dbg(1, "audio carrier scan failed, using %d.%03d MHz [default]\n" , |
551 | carrier/1000, carrier%1000); |
552 | dev->automute = 1; |
553 | } |
554 | tvaudio_setcarrier(dev,primary: carrier,secondary: carrier); |
555 | saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x00); |
556 | saa7134_tvaudio_setmute(dev); |
557 | /* find the exact tv audio norm */ |
558 | for (audio = UNSET, i = 0; i < TVAUDIO; i++) { |
559 | if (dev->tvnorm->id != UNSET && |
560 | !(dev->tvnorm->id & tvaudio[i].std)) |
561 | continue; |
562 | if (tvaudio[i].carr1 != carrier) |
563 | continue; |
564 | /* Note: at least the primary carrier is right here */ |
565 | if (UNSET == audio) |
566 | audio = i; |
567 | tvaudio_setmode(dev,audio: &tvaudio[i],note: "trying" ); |
568 | if (tvaudio_sleep(dev,SCAN_SUBCARRIER_DELAY)) |
569 | goto restart; |
570 | if (-1 != tvaudio_getstereo(dev,audio: &tvaudio[i])) { |
571 | audio = i; |
572 | break; |
573 | } |
574 | } |
575 | saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x30); |
576 | if (UNSET == audio) |
577 | continue; |
578 | tvaudio_setmode(dev,audio: &tvaudio[audio],note: "using" ); |
579 | |
580 | tvaudio_setstereo(dev,audio: &tvaudio[audio],V4L2_TUNER_MODE_MONO); |
581 | dev->tvaudio = &tvaudio[audio]; |
582 | |
583 | lastmode = 42; |
584 | for (;;) { |
585 | |
586 | try_to_freeze(); |
587 | |
588 | if (tvaudio_sleep(dev,timeout: 5000)) |
589 | goto restart; |
590 | if (kthread_should_stop()) |
591 | break; |
592 | if (UNSET == dev->thread.mode) { |
593 | rx = tvaudio_getstereo(dev, audio: &tvaudio[audio]); |
594 | mode = saa7134_tvaudio_rx2mode(rx); |
595 | } else { |
596 | mode = dev->thread.mode; |
597 | } |
598 | if (lastmode != mode) { |
599 | tvaudio_setstereo(dev,audio: &tvaudio[audio],mode); |
600 | lastmode = mode; |
601 | } |
602 | } |
603 | } |
604 | |
605 | done: |
606 | dev->thread.stopped = 1; |
607 | return 0; |
608 | } |
609 | |
610 | /* ------------------------------------------------------------------ */ |
611 | /* saa7133 / saa7135 code */ |
612 | |
613 | static char *stdres[0x20] = { |
614 | [0x00] = "no standard detected" , |
615 | [0x01] = "B/G (in progress)" , |
616 | [0x02] = "D/K (in progress)" , |
617 | [0x03] = "M (in progress)" , |
618 | |
619 | [0x04] = "B/G A2" , |
620 | [0x05] = "B/G NICAM" , |
621 | [0x06] = "D/K A2 (1)" , |
622 | [0x07] = "D/K A2 (2)" , |
623 | [0x08] = "D/K A2 (3)" , |
624 | [0x09] = "D/K NICAM" , |
625 | [0x0a] = "L NICAM" , |
626 | [0x0b] = "I NICAM" , |
627 | |
628 | [0x0c] = "M Korea" , |
629 | [0x0d] = "M BTSC " , |
630 | [0x0e] = "M EIAJ" , |
631 | |
632 | [0x0f] = "FM radio / IF 10.7 / 50 deemp" , |
633 | [0x10] = "FM radio / IF 10.7 / 75 deemp" , |
634 | [0x11] = "FM radio / IF sel / 50 deemp" , |
635 | [0x12] = "FM radio / IF sel / 75 deemp" , |
636 | |
637 | [0x13 ... 0x1e ] = "unknown" , |
638 | [0x1f] = "??? [in progress]" , |
639 | }; |
640 | |
641 | #define DSP_RETRY 32 |
642 | #define DSP_DELAY 16 |
643 | #define SAA7135_DSP_RWCLEAR_RERR 1 |
644 | |
645 | static inline int saa_dsp_reset_error_bit(struct saa7134_dev *dev) |
646 | { |
647 | int state = saa_readb(SAA7135_DSP_RWSTATE); |
648 | if (unlikely(state & SAA7135_DSP_RWSTATE_ERR)) { |
649 | audio_dbg(2, "%s: resetting error bit\n" , dev->name); |
650 | saa_writeb(SAA7135_DSP_RWCLEAR, SAA7135_DSP_RWCLEAR_RERR); |
651 | } |
652 | return 0; |
653 | } |
654 | |
655 | static inline int saa_dsp_wait_bit(struct saa7134_dev *dev, int bit) |
656 | { |
657 | int state, count = DSP_RETRY; |
658 | |
659 | state = saa_readb(SAA7135_DSP_RWSTATE); |
660 | if (unlikely(state & SAA7135_DSP_RWSTATE_ERR)) { |
661 | pr_warn("%s: dsp access error\n" , dev->name); |
662 | saa_dsp_reset_error_bit(dev); |
663 | return -EIO; |
664 | } |
665 | while (0 == (state & bit)) { |
666 | if (unlikely(0 == count)) { |
667 | pr_err("dsp access wait timeout [bit=%s]\n" , |
668 | (bit & SAA7135_DSP_RWSTATE_WRR) ? "WRR" : |
669 | (bit & SAA7135_DSP_RWSTATE_RDB) ? "RDB" : |
670 | (bit & SAA7135_DSP_RWSTATE_IDA) ? "IDA" : |
671 | "???" ); |
672 | return -EIO; |
673 | } |
674 | saa_wait(DSP_DELAY); |
675 | state = saa_readb(SAA7135_DSP_RWSTATE); |
676 | count--; |
677 | } |
678 | return 0; |
679 | } |
680 | |
681 | |
682 | int saa_dsp_writel(struct saa7134_dev *dev, int reg, u32 value) |
683 | { |
684 | int err; |
685 | |
686 | audio_dbg(2, "dsp write reg 0x%x = 0x%06x\n" , |
687 | (reg << 2) & 0xffffffff, value); |
688 | err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR); |
689 | if (err < 0) |
690 | return err; |
691 | saa_writel(reg,value); |
692 | err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR); |
693 | if (err < 0) |
694 | return err; |
695 | return 0; |
696 | } |
697 | |
698 | static int getstereo_7133(struct saa7134_dev *dev) |
699 | { |
700 | int retval = V4L2_TUNER_SUB_MONO; |
701 | u32 value; |
702 | |
703 | value = saa_readl(0x528 >> 2); |
704 | if (value & 0x20) |
705 | retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO; |
706 | if (value & 0x40) |
707 | retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; |
708 | return retval; |
709 | } |
710 | |
711 | static int mute_input_7133(struct saa7134_dev *dev) |
712 | { |
713 | u32 reg = 0; |
714 | u32 xbarin, xbarout; |
715 | int mask; |
716 | struct saa7134_input *in; |
717 | |
718 | xbarin = 0x03; |
719 | switch (dev->input->amux) { |
720 | case TV: |
721 | reg = 0x02; |
722 | xbarin = 0; |
723 | break; |
724 | case LINE1: |
725 | reg = 0x00; |
726 | break; |
727 | case LINE2: |
728 | case LINE2_LEFT: |
729 | reg = 0x09; |
730 | break; |
731 | } |
732 | saa_dsp_writel(dev, reg: 0x464 >> 2, value: xbarin); |
733 | if (dev->ctl_mute) { |
734 | reg = 0x07; |
735 | xbarout = 0xbbbbbb; |
736 | } else |
737 | xbarout = 0xbbbb10; |
738 | saa_dsp_writel(dev, reg: 0x46c >> 2, value: xbarout); |
739 | |
740 | saa_writel(0x594 >> 2, reg); |
741 | |
742 | |
743 | /* switch gpio-connected external audio mux */ |
744 | if (0 != card(dev).gpiomask) { |
745 | mask = card(dev).gpiomask; |
746 | |
747 | if (card(dev).mute.type && dev->ctl_mute) |
748 | in = &card(dev).mute; |
749 | else |
750 | in = dev->input; |
751 | |
752 | saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, mask, mask); |
753 | saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, mask, in->gpio); |
754 | saa7134_track_gpio(dev, msg: saa7134_input_name[in->type]); |
755 | } |
756 | |
757 | return 0; |
758 | } |
759 | |
760 | static int tvaudio_thread_ddep(void *data) |
761 | { |
762 | struct saa7134_dev *dev = data; |
763 | u32 value, norms; |
764 | |
765 | set_freezable(); |
766 | for (;;) { |
767 | tvaudio_sleep(dev,timeout: -1); |
768 | if (kthread_should_stop()) |
769 | goto done; |
770 | restart: |
771 | try_to_freeze(); |
772 | |
773 | dev->thread.scan1 = dev->thread.scan2; |
774 | audio_dbg(1, "tvaudio thread scan start [%d]\n" , |
775 | dev->thread.scan1); |
776 | |
777 | if (audio_ddep >= 0x04 && audio_ddep <= 0x0e) { |
778 | /* insmod option override */ |
779 | norms = (audio_ddep << 2) | 0x01; |
780 | audio_dbg(1, "ddep override: %s\n" , |
781 | stdres[audio_ddep]); |
782 | } else if (&card(dev).radio == dev->input) { |
783 | audio_dbg(1, "FM Radio\n" ); |
784 | if (dev->tuner_type == TUNER_PHILIPS_TDA8290) { |
785 | norms = (0x11 << 2) | 0x01; |
786 | /* set IF frequency to 5.5 MHz */ |
787 | saa_dsp_writel(dev, reg: 0x42c >> 2, value: 0x729555); |
788 | } else { |
789 | norms = (0x0f << 2) | 0x01; |
790 | } |
791 | } else { |
792 | /* (let chip) scan for sound carrier */ |
793 | norms = 0; |
794 | if (dev->tvnorm->id & (V4L2_STD_B | V4L2_STD_GH)) |
795 | norms |= 0x04; |
796 | if (dev->tvnorm->id & V4L2_STD_PAL_I) |
797 | norms |= 0x20; |
798 | if (dev->tvnorm->id & V4L2_STD_DK) |
799 | norms |= 0x08; |
800 | if (dev->tvnorm->id & V4L2_STD_MN) |
801 | norms |= 0x40; |
802 | if (dev->tvnorm->id & (V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC)) |
803 | norms |= 0x10; |
804 | if (0 == norms) |
805 | norms = 0x7c; /* all */ |
806 | audio_dbg(1, "scanning:%s%s%s%s%s\n" , |
807 | (norms & 0x04) ? " B/G" : "" , |
808 | (norms & 0x08) ? " D/K" : "" , |
809 | (norms & 0x10) ? " L/L'" : "" , |
810 | (norms & 0x20) ? " I" : "" , |
811 | (norms & 0x40) ? " M" : "" ); |
812 | } |
813 | |
814 | /* kick automatic standard detection */ |
815 | saa_dsp_writel(dev, reg: 0x454 >> 2, value: 0); |
816 | saa_dsp_writel(dev, reg: 0x454 >> 2, value: norms | 0x80); |
817 | |
818 | /* setup crossbars */ |
819 | saa_dsp_writel(dev, reg: 0x464 >> 2, value: 0x000000); |
820 | saa_dsp_writel(dev, reg: 0x470 >> 2, value: 0x101010); |
821 | |
822 | if (tvaudio_sleep(dev,timeout: 3000)) |
823 | goto restart; |
824 | value = saa_readl(0x528 >> 2) & 0xffffff; |
825 | |
826 | audio_dbg(1, "tvaudio thread status: 0x%x [%s%s%s]\n" , |
827 | value, stdres[value & 0x1f], |
828 | (value & 0x000020) ? ",stereo" : "" , |
829 | (value & 0x000040) ? ",dual" : "" ); |
830 | audio_dbg(1, "detailed status: %s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s\n" , |
831 | (value & 0x000080) ? " A2/EIAJ pilot tone " : "" , |
832 | (value & 0x000100) ? " A2/EIAJ dual " : "" , |
833 | (value & 0x000200) ? " A2/EIAJ stereo " : "" , |
834 | (value & 0x000400) ? " A2/EIAJ noise mute " : "" , |
835 | |
836 | (value & 0x000800) ? " BTSC/FM radio pilot " : "" , |
837 | (value & 0x001000) ? " SAP carrier " : "" , |
838 | (value & 0x002000) ? " BTSC stereo noise mute " : "" , |
839 | (value & 0x004000) ? " SAP noise mute " : "" , |
840 | (value & 0x008000) ? " VDSP " : "" , |
841 | |
842 | (value & 0x010000) ? " NICST " : "" , |
843 | (value & 0x020000) ? " NICDU " : "" , |
844 | (value & 0x040000) ? " NICAM muted " : "" , |
845 | (value & 0x080000) ? " NICAM reserve sound " : "" , |
846 | |
847 | (value & 0x100000) ? " init done " : "" ); |
848 | } |
849 | |
850 | done: |
851 | dev->thread.stopped = 1; |
852 | return 0; |
853 | } |
854 | |
855 | /* ------------------------------------------------------------------ */ |
856 | /* common stuff + external entry points */ |
857 | |
858 | void saa7134_enable_i2s(struct saa7134_dev *dev) |
859 | { |
860 | int i2s_format; |
861 | |
862 | if (!card_is_empress(dev)) |
863 | return; |
864 | |
865 | if (dev->pci->device == PCI_DEVICE_ID_PHILIPS_SAA7130) |
866 | return; |
867 | |
868 | /* configure GPIO for out */ |
869 | saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, 0x0E000000, 0x00000000); |
870 | |
871 | switch (dev->pci->device) { |
872 | case PCI_DEVICE_ID_PHILIPS_SAA7133: |
873 | case PCI_DEVICE_ID_PHILIPS_SAA7135: |
874 | /* Set I2S format (SONY) */ |
875 | saa_writeb(SAA7133_I2S_AUDIO_CONTROL, 0x00); |
876 | /* Start I2S */ |
877 | saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x11); |
878 | break; |
879 | |
880 | case PCI_DEVICE_ID_PHILIPS_SAA7134: |
881 | i2s_format = (dev->input->amux == TV) ? 0x00 : 0x01; |
882 | |
883 | /* enable I2S audio output for the mpeg encoder */ |
884 | saa_writeb(SAA7134_I2S_OUTPUT_SELECT, 0x80); |
885 | saa_writeb(SAA7134_I2S_OUTPUT_FORMAT, i2s_format); |
886 | saa_writeb(SAA7134_I2S_OUTPUT_LEVEL, 0x0F); |
887 | saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x01); |
888 | break; |
889 | |
890 | default: |
891 | break; |
892 | } |
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,audio: 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 | void saa7134_tvaudio_init(struct saa7134_dev *dev) |
969 | { |
970 | int clock = saa7134_boards[dev->board].audio_clock; |
971 | |
972 | if (UNSET != audio_clock_override) |
973 | clock = audio_clock_override; |
974 | |
975 | switch (dev->pci->device) { |
976 | case PCI_DEVICE_ID_PHILIPS_SAA7134: |
977 | /* init all audio registers */ |
978 | saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x00); |
979 | if (need_resched()) |
980 | schedule(); |
981 | else |
982 | udelay(10); |
983 | |
984 | saa_writeb(SAA7134_AUDIO_CLOCK0, clock & 0xff); |
985 | saa_writeb(SAA7134_AUDIO_CLOCK1, (clock >> 8) & 0xff); |
986 | saa_writeb(SAA7134_AUDIO_CLOCK2, (clock >> 16) & 0xff); |
987 | /* frame locked audio is mandatory for NICAM */ |
988 | saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x01); |
989 | saa_writeb(SAA7134_NICAM_ERROR_LOW, 0x14); |
990 | saa_writeb(SAA7134_NICAM_ERROR_HIGH, 0x50); |
991 | break; |
992 | case PCI_DEVICE_ID_PHILIPS_SAA7133: |
993 | case PCI_DEVICE_ID_PHILIPS_SAA7135: |
994 | saa_writel(0x598 >> 2, clock); |
995 | saa_dsp_writel(dev, reg: 0x474 >> 2, value: 0x00); |
996 | saa_dsp_writel(dev, reg: 0x450 >> 2, value: 0x00); |
997 | } |
998 | } |
999 | |
1000 | int saa7134_tvaudio_init2(struct saa7134_dev *dev) |
1001 | { |
1002 | int (*my_thread)(void *data) = NULL; |
1003 | |
1004 | switch (dev->pci->device) { |
1005 | case PCI_DEVICE_ID_PHILIPS_SAA7134: |
1006 | my_thread = tvaudio_thread; |
1007 | break; |
1008 | case PCI_DEVICE_ID_PHILIPS_SAA7133: |
1009 | case PCI_DEVICE_ID_PHILIPS_SAA7135: |
1010 | my_thread = tvaudio_thread_ddep; |
1011 | break; |
1012 | } |
1013 | |
1014 | dev->thread.thread = NULL; |
1015 | dev->thread.scan1 = dev->thread.scan2 = 0; |
1016 | if (my_thread) { |
1017 | saa7134_tvaudio_init(dev); |
1018 | /* start tvaudio thread */ |
1019 | dev->thread.thread = kthread_run(my_thread, dev, "%s" , dev->name); |
1020 | if (IS_ERR(ptr: dev->thread.thread)) { |
1021 | pr_warn("%s: kernel_thread() failed\n" , |
1022 | dev->name); |
1023 | /* XXX: missing error handling here */ |
1024 | } |
1025 | } |
1026 | |
1027 | saa7134_enable_i2s(dev); |
1028 | return 0; |
1029 | } |
1030 | |
1031 | int saa7134_tvaudio_close(struct saa7134_dev *dev) |
1032 | { |
1033 | dev->automute = 1; |
1034 | /* anything else to undo? */ |
1035 | return 0; |
1036 | } |
1037 | |
1038 | int saa7134_tvaudio_fini(struct saa7134_dev *dev) |
1039 | { |
1040 | /* shutdown tvaudio thread */ |
1041 | if (dev->thread.thread && !dev->thread.stopped) |
1042 | kthread_stop(k: dev->thread.thread); |
1043 | |
1044 | saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, 0x00); /* LINE1 */ |
1045 | return 0; |
1046 | } |
1047 | |
1048 | int saa7134_tvaudio_do_scan(struct saa7134_dev *dev) |
1049 | { |
1050 | if (dev->input->amux != TV) { |
1051 | audio_dbg(1, "sound IF not in use, skipping scan\n" ); |
1052 | dev->automute = 0; |
1053 | saa7134_tvaudio_setmute(dev); |
1054 | } else if (dev->thread.thread) { |
1055 | dev->thread.mode = UNSET; |
1056 | dev->thread.scan2++; |
1057 | |
1058 | if (!dev->insuspend && !dev->thread.stopped) |
1059 | wake_up_process(tsk: dev->thread.thread); |
1060 | } else { |
1061 | dev->automute = 0; |
1062 | saa7134_tvaudio_setmute(dev); |
1063 | } |
1064 | return 0; |
1065 | } |
1066 | |
1067 | EXPORT_SYMBOL(saa_dsp_writel); |
1068 | EXPORT_SYMBOL(saa7134_tvaudio_setmute); |
1069 | |