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Merge remote-tracking branch 'mmc-uh/next'
[deliverable/linux.git] / sound / pci / oxygen / oxygen_pcm.c
1 /*
2 * C-Media CMI8788 driver - PCM code
3 *
4 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
5 *
6 *
7 * This driver is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License, version 2.
9 *
10 * This driver is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this driver; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20 #include <linux/pci.h>
21 #include <sound/control.h>
22 #include <sound/core.h>
23 #include <sound/pcm.h>
24 #include <sound/pcm_params.h>
25 #include "oxygen.h"
26
27 /* most DMA channels have a 16-bit counter for 32-bit words */
28 #define BUFFER_BYTES_MAX ((1 << 16) * 4)
29 /* the multichannel DMA channel has a 24-bit counter */
30 #define BUFFER_BYTES_MAX_MULTICH ((1 << 24) * 4)
31
32 #define FIFO_BYTES 256
33 #define FIFO_BYTES_MULTICH 1024
34
35 #define PERIOD_BYTES_MIN 64
36
37 #define DEFAULT_BUFFER_BYTES (BUFFER_BYTES_MAX / 2)
38 #define DEFAULT_BUFFER_BYTES_MULTICH (1024 * 1024)
39
40 static const struct snd_pcm_hardware oxygen_stereo_hardware = {
41 .info = SNDRV_PCM_INFO_MMAP |
42 SNDRV_PCM_INFO_MMAP_VALID |
43 SNDRV_PCM_INFO_INTERLEAVED |
44 SNDRV_PCM_INFO_PAUSE |
45 SNDRV_PCM_INFO_SYNC_START |
46 SNDRV_PCM_INFO_NO_PERIOD_WAKEUP,
47 .formats = SNDRV_PCM_FMTBIT_S16_LE |
48 SNDRV_PCM_FMTBIT_S32_LE,
49 .rates = SNDRV_PCM_RATE_32000 |
50 SNDRV_PCM_RATE_44100 |
51 SNDRV_PCM_RATE_48000 |
52 SNDRV_PCM_RATE_64000 |
53 SNDRV_PCM_RATE_88200 |
54 SNDRV_PCM_RATE_96000 |
55 SNDRV_PCM_RATE_176400 |
56 SNDRV_PCM_RATE_192000,
57 .rate_min = 32000,
58 .rate_max = 192000,
59 .channels_min = 2,
60 .channels_max = 2,
61 .buffer_bytes_max = BUFFER_BYTES_MAX,
62 .period_bytes_min = PERIOD_BYTES_MIN,
63 .period_bytes_max = BUFFER_BYTES_MAX,
64 .periods_min = 1,
65 .periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN,
66 .fifo_size = FIFO_BYTES,
67 };
68 static const struct snd_pcm_hardware oxygen_multichannel_hardware = {
69 .info = SNDRV_PCM_INFO_MMAP |
70 SNDRV_PCM_INFO_MMAP_VALID |
71 SNDRV_PCM_INFO_INTERLEAVED |
72 SNDRV_PCM_INFO_PAUSE |
73 SNDRV_PCM_INFO_SYNC_START |
74 SNDRV_PCM_INFO_NO_PERIOD_WAKEUP,
75 .formats = SNDRV_PCM_FMTBIT_S16_LE |
76 SNDRV_PCM_FMTBIT_S32_LE,
77 .rates = SNDRV_PCM_RATE_32000 |
78 SNDRV_PCM_RATE_44100 |
79 SNDRV_PCM_RATE_48000 |
80 SNDRV_PCM_RATE_64000 |
81 SNDRV_PCM_RATE_88200 |
82 SNDRV_PCM_RATE_96000 |
83 SNDRV_PCM_RATE_176400 |
84 SNDRV_PCM_RATE_192000,
85 .rate_min = 32000,
86 .rate_max = 192000,
87 .channels_min = 2,
88 .channels_max = 8,
89 .buffer_bytes_max = BUFFER_BYTES_MAX_MULTICH,
90 .period_bytes_min = PERIOD_BYTES_MIN,
91 .period_bytes_max = BUFFER_BYTES_MAX_MULTICH,
92 .periods_min = 1,
93 .periods_max = BUFFER_BYTES_MAX_MULTICH / PERIOD_BYTES_MIN,
94 .fifo_size = FIFO_BYTES_MULTICH,
95 };
96 static const struct snd_pcm_hardware oxygen_ac97_hardware = {
97 .info = SNDRV_PCM_INFO_MMAP |
98 SNDRV_PCM_INFO_MMAP_VALID |
99 SNDRV_PCM_INFO_INTERLEAVED |
100 SNDRV_PCM_INFO_PAUSE |
101 SNDRV_PCM_INFO_SYNC_START |
102 SNDRV_PCM_INFO_NO_PERIOD_WAKEUP,
103 .formats = SNDRV_PCM_FMTBIT_S16_LE,
104 .rates = SNDRV_PCM_RATE_48000,
105 .rate_min = 48000,
106 .rate_max = 48000,
107 .channels_min = 2,
108 .channels_max = 2,
109 .buffer_bytes_max = BUFFER_BYTES_MAX,
110 .period_bytes_min = PERIOD_BYTES_MIN,
111 .period_bytes_max = BUFFER_BYTES_MAX,
112 .periods_min = 1,
113 .periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN,
114 .fifo_size = FIFO_BYTES,
115 };
116
117 static const struct snd_pcm_hardware *const oxygen_hardware[PCM_COUNT] = {
118 [PCM_A] = &oxygen_stereo_hardware,
119 [PCM_B] = &oxygen_stereo_hardware,
120 [PCM_C] = &oxygen_stereo_hardware,
121 [PCM_SPDIF] = &oxygen_stereo_hardware,
122 [PCM_MULTICH] = &oxygen_multichannel_hardware,
123 [PCM_AC97] = &oxygen_ac97_hardware,
124 };
125
126 static inline unsigned int
127 oxygen_substream_channel(struct snd_pcm_substream *substream)
128 {
129 return (unsigned int)(uintptr_t)substream->runtime->private_data;
130 }
131
132 static int oxygen_open(struct snd_pcm_substream *substream,
133 unsigned int channel)
134 {
135 struct oxygen *chip = snd_pcm_substream_chip(substream);
136 struct snd_pcm_runtime *runtime = substream->runtime;
137 int err;
138
139 runtime->private_data = (void *)(uintptr_t)channel;
140 if (channel == PCM_B && chip->has_ac97_1 &&
141 (chip->model.device_config & CAPTURE_2_FROM_AC97_1))
142 runtime->hw = oxygen_ac97_hardware;
143 else
144 runtime->hw = *oxygen_hardware[channel];
145 switch (channel) {
146 case PCM_C:
147 if (chip->model.device_config & CAPTURE_1_FROM_SPDIF) {
148 runtime->hw.rates &= ~(SNDRV_PCM_RATE_32000 |
149 SNDRV_PCM_RATE_64000);
150 runtime->hw.rate_min = 44100;
151 }
152 /* fall through */
153 case PCM_A:
154 case PCM_B:
155 runtime->hw.fifo_size = 0;
156 break;
157 case PCM_MULTICH:
158 runtime->hw.channels_max = chip->model.dac_channels_pcm;
159 break;
160 }
161 if (chip->model.pcm_hardware_filter)
162 chip->model.pcm_hardware_filter(channel, &runtime->hw);
163 err = snd_pcm_hw_constraint_step(runtime, 0,
164 SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
165 if (err < 0)
166 return err;
167 err = snd_pcm_hw_constraint_step(runtime, 0,
168 SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 32);
169 if (err < 0)
170 return err;
171 if (runtime->hw.formats & SNDRV_PCM_FMTBIT_S32_LE) {
172 err = snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
173 if (err < 0)
174 return err;
175 }
176 if (runtime->hw.channels_max > 2) {
177 err = snd_pcm_hw_constraint_step(runtime, 0,
178 SNDRV_PCM_HW_PARAM_CHANNELS,
179 2);
180 if (err < 0)
181 return err;
182 }
183 snd_pcm_set_sync(substream);
184 chip->streams[channel] = substream;
185
186 mutex_lock(&chip->mutex);
187 chip->pcm_active |= 1 << channel;
188 if (channel == PCM_SPDIF) {
189 chip->spdif_pcm_bits = chip->spdif_bits;
190 chip->controls[CONTROL_SPDIF_PCM]->vd[0].access &=
191 ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
192 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE |
193 SNDRV_CTL_EVENT_MASK_INFO,
194 &chip->controls[CONTROL_SPDIF_PCM]->id);
195 }
196 mutex_unlock(&chip->mutex);
197
198 return 0;
199 }
200
201 static int oxygen_rec_a_open(struct snd_pcm_substream *substream)
202 {
203 return oxygen_open(substream, PCM_A);
204 }
205
206 static int oxygen_rec_b_open(struct snd_pcm_substream *substream)
207 {
208 return oxygen_open(substream, PCM_B);
209 }
210
211 static int oxygen_rec_c_open(struct snd_pcm_substream *substream)
212 {
213 return oxygen_open(substream, PCM_C);
214 }
215
216 static int oxygen_spdif_open(struct snd_pcm_substream *substream)
217 {
218 return oxygen_open(substream, PCM_SPDIF);
219 }
220
221 static int oxygen_multich_open(struct snd_pcm_substream *substream)
222 {
223 return oxygen_open(substream, PCM_MULTICH);
224 }
225
226 static int oxygen_ac97_open(struct snd_pcm_substream *substream)
227 {
228 return oxygen_open(substream, PCM_AC97);
229 }
230
231 static int oxygen_close(struct snd_pcm_substream *substream)
232 {
233 struct oxygen *chip = snd_pcm_substream_chip(substream);
234 unsigned int channel = oxygen_substream_channel(substream);
235
236 mutex_lock(&chip->mutex);
237 chip->pcm_active &= ~(1 << channel);
238 if (channel == PCM_SPDIF) {
239 chip->controls[CONTROL_SPDIF_PCM]->vd[0].access |=
240 SNDRV_CTL_ELEM_ACCESS_INACTIVE;
241 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE |
242 SNDRV_CTL_EVENT_MASK_INFO,
243 &chip->controls[CONTROL_SPDIF_PCM]->id);
244 }
245 if (channel == PCM_SPDIF || channel == PCM_MULTICH)
246 oxygen_update_spdif_source(chip);
247 mutex_unlock(&chip->mutex);
248
249 chip->streams[channel] = NULL;
250 return 0;
251 }
252
253 static unsigned int oxygen_format(struct snd_pcm_hw_params *hw_params)
254 {
255 if (params_format(hw_params) == SNDRV_PCM_FORMAT_S32_LE)
256 return OXYGEN_FORMAT_24;
257 else
258 return OXYGEN_FORMAT_16;
259 }
260
261 static unsigned int oxygen_rate(struct snd_pcm_hw_params *hw_params)
262 {
263 switch (params_rate(hw_params)) {
264 case 32000:
265 return OXYGEN_RATE_32000;
266 case 44100:
267 return OXYGEN_RATE_44100;
268 default: /* 48000 */
269 return OXYGEN_RATE_48000;
270 case 64000:
271 return OXYGEN_RATE_64000;
272 case 88200:
273 return OXYGEN_RATE_88200;
274 case 96000:
275 return OXYGEN_RATE_96000;
276 case 176400:
277 return OXYGEN_RATE_176400;
278 case 192000:
279 return OXYGEN_RATE_192000;
280 }
281 }
282
283 static unsigned int oxygen_i2s_bits(struct snd_pcm_hw_params *hw_params)
284 {
285 if (params_format(hw_params) == SNDRV_PCM_FORMAT_S32_LE)
286 return OXYGEN_I2S_BITS_24;
287 else
288 return OXYGEN_I2S_BITS_16;
289 }
290
291 static unsigned int oxygen_play_channels(struct snd_pcm_hw_params *hw_params)
292 {
293 switch (params_channels(hw_params)) {
294 default: /* 2 */
295 return OXYGEN_PLAY_CHANNELS_2;
296 case 4:
297 return OXYGEN_PLAY_CHANNELS_4;
298 case 6:
299 return OXYGEN_PLAY_CHANNELS_6;
300 case 8:
301 return OXYGEN_PLAY_CHANNELS_8;
302 }
303 }
304
305 static const unsigned int channel_base_registers[PCM_COUNT] = {
306 [PCM_A] = OXYGEN_DMA_A_ADDRESS,
307 [PCM_B] = OXYGEN_DMA_B_ADDRESS,
308 [PCM_C] = OXYGEN_DMA_C_ADDRESS,
309 [PCM_SPDIF] = OXYGEN_DMA_SPDIF_ADDRESS,
310 [PCM_MULTICH] = OXYGEN_DMA_MULTICH_ADDRESS,
311 [PCM_AC97] = OXYGEN_DMA_AC97_ADDRESS,
312 };
313
314 static int oxygen_hw_params(struct snd_pcm_substream *substream,
315 struct snd_pcm_hw_params *hw_params)
316 {
317 struct oxygen *chip = snd_pcm_substream_chip(substream);
318 unsigned int channel = oxygen_substream_channel(substream);
319 int err;
320
321 err = snd_pcm_lib_malloc_pages(substream,
322 params_buffer_bytes(hw_params));
323 if (err < 0)
324 return err;
325
326 oxygen_write32(chip, channel_base_registers[channel],
327 (u32)substream->runtime->dma_addr);
328 if (channel == PCM_MULTICH) {
329 oxygen_write32(chip, OXYGEN_DMA_MULTICH_COUNT,
330 params_buffer_bytes(hw_params) / 4 - 1);
331 oxygen_write32(chip, OXYGEN_DMA_MULTICH_TCOUNT,
332 params_period_bytes(hw_params) / 4 - 1);
333 } else {
334 oxygen_write16(chip, channel_base_registers[channel] + 4,
335 params_buffer_bytes(hw_params) / 4 - 1);
336 oxygen_write16(chip, channel_base_registers[channel] + 6,
337 params_period_bytes(hw_params) / 4 - 1);
338 }
339 return 0;
340 }
341
342 static u16 get_mclk(struct oxygen *chip, unsigned int channel,
343 struct snd_pcm_hw_params *params)
344 {
345 unsigned int mclks, shift;
346
347 if (channel == PCM_MULTICH)
348 mclks = chip->model.dac_mclks;
349 else
350 mclks = chip->model.adc_mclks;
351
352 if (params_rate(params) <= 48000)
353 shift = 0;
354 else if (params_rate(params) <= 96000)
355 shift = 2;
356 else
357 shift = 4;
358
359 return OXYGEN_I2S_MCLK(mclks >> shift);
360 }
361
362 static int oxygen_rec_a_hw_params(struct snd_pcm_substream *substream,
363 struct snd_pcm_hw_params *hw_params)
364 {
365 struct oxygen *chip = snd_pcm_substream_chip(substream);
366 int err;
367
368 err = oxygen_hw_params(substream, hw_params);
369 if (err < 0)
370 return err;
371
372 spin_lock_irq(&chip->reg_lock);
373 oxygen_write8_masked(chip, OXYGEN_REC_FORMAT,
374 oxygen_format(hw_params) << OXYGEN_REC_FORMAT_A_SHIFT,
375 OXYGEN_REC_FORMAT_A_MASK);
376 oxygen_write16_masked(chip, OXYGEN_I2S_A_FORMAT,
377 oxygen_rate(hw_params) |
378 chip->model.adc_i2s_format |
379 get_mclk(chip, PCM_A, hw_params) |
380 oxygen_i2s_bits(hw_params),
381 OXYGEN_I2S_RATE_MASK |
382 OXYGEN_I2S_FORMAT_MASK |
383 OXYGEN_I2S_MCLK_MASK |
384 OXYGEN_I2S_BITS_MASK);
385 spin_unlock_irq(&chip->reg_lock);
386
387 mutex_lock(&chip->mutex);
388 chip->model.set_adc_params(chip, hw_params);
389 mutex_unlock(&chip->mutex);
390 return 0;
391 }
392
393 static int oxygen_rec_b_hw_params(struct snd_pcm_substream *substream,
394 struct snd_pcm_hw_params *hw_params)
395 {
396 struct oxygen *chip = snd_pcm_substream_chip(substream);
397 int is_ac97;
398 int err;
399
400 err = oxygen_hw_params(substream, hw_params);
401 if (err < 0)
402 return err;
403
404 is_ac97 = chip->has_ac97_1 &&
405 (chip->model.device_config & CAPTURE_2_FROM_AC97_1);
406
407 spin_lock_irq(&chip->reg_lock);
408 oxygen_write8_masked(chip, OXYGEN_REC_FORMAT,
409 oxygen_format(hw_params) << OXYGEN_REC_FORMAT_B_SHIFT,
410 OXYGEN_REC_FORMAT_B_MASK);
411 if (!is_ac97)
412 oxygen_write16_masked(chip, OXYGEN_I2S_B_FORMAT,
413 oxygen_rate(hw_params) |
414 chip->model.adc_i2s_format |
415 get_mclk(chip, PCM_B, hw_params) |
416 oxygen_i2s_bits(hw_params),
417 OXYGEN_I2S_RATE_MASK |
418 OXYGEN_I2S_FORMAT_MASK |
419 OXYGEN_I2S_MCLK_MASK |
420 OXYGEN_I2S_BITS_MASK);
421 spin_unlock_irq(&chip->reg_lock);
422
423 if (!is_ac97) {
424 mutex_lock(&chip->mutex);
425 chip->model.set_adc_params(chip, hw_params);
426 mutex_unlock(&chip->mutex);
427 }
428 return 0;
429 }
430
431 static int oxygen_rec_c_hw_params(struct snd_pcm_substream *substream,
432 struct snd_pcm_hw_params *hw_params)
433 {
434 struct oxygen *chip = snd_pcm_substream_chip(substream);
435 bool is_spdif;
436 int err;
437
438 err = oxygen_hw_params(substream, hw_params);
439 if (err < 0)
440 return err;
441
442 is_spdif = chip->model.device_config & CAPTURE_1_FROM_SPDIF;
443
444 spin_lock_irq(&chip->reg_lock);
445 oxygen_write8_masked(chip, OXYGEN_REC_FORMAT,
446 oxygen_format(hw_params) << OXYGEN_REC_FORMAT_C_SHIFT,
447 OXYGEN_REC_FORMAT_C_MASK);
448 if (!is_spdif)
449 oxygen_write16_masked(chip, OXYGEN_I2S_C_FORMAT,
450 oxygen_rate(hw_params) |
451 chip->model.adc_i2s_format |
452 get_mclk(chip, PCM_B, hw_params) |
453 oxygen_i2s_bits(hw_params),
454 OXYGEN_I2S_RATE_MASK |
455 OXYGEN_I2S_FORMAT_MASK |
456 OXYGEN_I2S_MCLK_MASK |
457 OXYGEN_I2S_BITS_MASK);
458 spin_unlock_irq(&chip->reg_lock);
459
460 if (!is_spdif) {
461 mutex_lock(&chip->mutex);
462 chip->model.set_adc_params(chip, hw_params);
463 mutex_unlock(&chip->mutex);
464 }
465 return 0;
466 }
467
468 static int oxygen_spdif_hw_params(struct snd_pcm_substream *substream,
469 struct snd_pcm_hw_params *hw_params)
470 {
471 struct oxygen *chip = snd_pcm_substream_chip(substream);
472 int err;
473
474 err = oxygen_hw_params(substream, hw_params);
475 if (err < 0)
476 return err;
477
478 mutex_lock(&chip->mutex);
479 spin_lock_irq(&chip->reg_lock);
480 oxygen_clear_bits32(chip, OXYGEN_SPDIF_CONTROL,
481 OXYGEN_SPDIF_OUT_ENABLE);
482 oxygen_write8_masked(chip, OXYGEN_PLAY_FORMAT,
483 oxygen_format(hw_params) << OXYGEN_SPDIF_FORMAT_SHIFT,
484 OXYGEN_SPDIF_FORMAT_MASK);
485 oxygen_write32_masked(chip, OXYGEN_SPDIF_CONTROL,
486 oxygen_rate(hw_params) << OXYGEN_SPDIF_OUT_RATE_SHIFT,
487 OXYGEN_SPDIF_OUT_RATE_MASK);
488 oxygen_update_spdif_source(chip);
489 spin_unlock_irq(&chip->reg_lock);
490 mutex_unlock(&chip->mutex);
491 return 0;
492 }
493
494 static int oxygen_multich_hw_params(struct snd_pcm_substream *substream,
495 struct snd_pcm_hw_params *hw_params)
496 {
497 struct oxygen *chip = snd_pcm_substream_chip(substream);
498 int err;
499
500 err = oxygen_hw_params(substream, hw_params);
501 if (err < 0)
502 return err;
503
504 mutex_lock(&chip->mutex);
505 spin_lock_irq(&chip->reg_lock);
506 oxygen_write8_masked(chip, OXYGEN_PLAY_CHANNELS,
507 oxygen_play_channels(hw_params),
508 OXYGEN_PLAY_CHANNELS_MASK);
509 oxygen_write8_masked(chip, OXYGEN_PLAY_FORMAT,
510 oxygen_format(hw_params) << OXYGEN_MULTICH_FORMAT_SHIFT,
511 OXYGEN_MULTICH_FORMAT_MASK);
512 oxygen_write16_masked(chip, OXYGEN_I2S_MULTICH_FORMAT,
513 oxygen_rate(hw_params) |
514 chip->model.dac_i2s_format |
515 get_mclk(chip, PCM_MULTICH, hw_params) |
516 oxygen_i2s_bits(hw_params),
517 OXYGEN_I2S_RATE_MASK |
518 OXYGEN_I2S_FORMAT_MASK |
519 OXYGEN_I2S_MCLK_MASK |
520 OXYGEN_I2S_BITS_MASK);
521 oxygen_update_spdif_source(chip);
522 spin_unlock_irq(&chip->reg_lock);
523
524 chip->model.set_dac_params(chip, hw_params);
525 oxygen_update_dac_routing(chip);
526 mutex_unlock(&chip->mutex);
527 return 0;
528 }
529
530 static int oxygen_hw_free(struct snd_pcm_substream *substream)
531 {
532 struct oxygen *chip = snd_pcm_substream_chip(substream);
533 unsigned int channel = oxygen_substream_channel(substream);
534 unsigned int channel_mask = 1 << channel;
535
536 spin_lock_irq(&chip->reg_lock);
537 chip->interrupt_mask &= ~channel_mask;
538 oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, chip->interrupt_mask);
539
540 oxygen_set_bits8(chip, OXYGEN_DMA_FLUSH, channel_mask);
541 oxygen_clear_bits8(chip, OXYGEN_DMA_FLUSH, channel_mask);
542 spin_unlock_irq(&chip->reg_lock);
543
544 return snd_pcm_lib_free_pages(substream);
545 }
546
547 static int oxygen_spdif_hw_free(struct snd_pcm_substream *substream)
548 {
549 struct oxygen *chip = snd_pcm_substream_chip(substream);
550
551 spin_lock_irq(&chip->reg_lock);
552 oxygen_clear_bits32(chip, OXYGEN_SPDIF_CONTROL,
553 OXYGEN_SPDIF_OUT_ENABLE);
554 spin_unlock_irq(&chip->reg_lock);
555 return oxygen_hw_free(substream);
556 }
557
558 static int oxygen_prepare(struct snd_pcm_substream *substream)
559 {
560 struct oxygen *chip = snd_pcm_substream_chip(substream);
561 unsigned int channel = oxygen_substream_channel(substream);
562 unsigned int channel_mask = 1 << channel;
563
564 spin_lock_irq(&chip->reg_lock);
565 oxygen_set_bits8(chip, OXYGEN_DMA_FLUSH, channel_mask);
566 oxygen_clear_bits8(chip, OXYGEN_DMA_FLUSH, channel_mask);
567
568 if (substream->runtime->no_period_wakeup)
569 chip->interrupt_mask &= ~channel_mask;
570 else
571 chip->interrupt_mask |= channel_mask;
572 oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, chip->interrupt_mask);
573 spin_unlock_irq(&chip->reg_lock);
574 return 0;
575 }
576
577 static int oxygen_trigger(struct snd_pcm_substream *substream, int cmd)
578 {
579 struct oxygen *chip = snd_pcm_substream_chip(substream);
580 struct snd_pcm_substream *s;
581 unsigned int mask = 0;
582 int pausing;
583
584 switch (cmd) {
585 case SNDRV_PCM_TRIGGER_STOP:
586 case SNDRV_PCM_TRIGGER_START:
587 case SNDRV_PCM_TRIGGER_SUSPEND:
588 pausing = 0;
589 break;
590 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
591 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
592 pausing = 1;
593 break;
594 default:
595 return -EINVAL;
596 }
597
598 snd_pcm_group_for_each_entry(s, substream) {
599 if (snd_pcm_substream_chip(s) == chip) {
600 mask |= 1 << oxygen_substream_channel(s);
601 snd_pcm_trigger_done(s, substream);
602 }
603 }
604
605 spin_lock(&chip->reg_lock);
606 if (!pausing) {
607 if (cmd == SNDRV_PCM_TRIGGER_START)
608 chip->pcm_running |= mask;
609 else
610 chip->pcm_running &= ~mask;
611 oxygen_write8(chip, OXYGEN_DMA_STATUS, chip->pcm_running);
612 } else {
613 if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH)
614 oxygen_set_bits8(chip, OXYGEN_DMA_PAUSE, mask);
615 else
616 oxygen_clear_bits8(chip, OXYGEN_DMA_PAUSE, mask);
617 }
618 spin_unlock(&chip->reg_lock);
619 return 0;
620 }
621
622 static snd_pcm_uframes_t oxygen_pointer(struct snd_pcm_substream *substream)
623 {
624 struct oxygen *chip = snd_pcm_substream_chip(substream);
625 struct snd_pcm_runtime *runtime = substream->runtime;
626 unsigned int channel = oxygen_substream_channel(substream);
627 u32 curr_addr;
628
629 /* no spinlock, this read should be atomic */
630 curr_addr = oxygen_read32(chip, channel_base_registers[channel]);
631 return bytes_to_frames(runtime, curr_addr - (u32)runtime->dma_addr);
632 }
633
634 static const struct snd_pcm_ops oxygen_rec_a_ops = {
635 .open = oxygen_rec_a_open,
636 .close = oxygen_close,
637 .ioctl = snd_pcm_lib_ioctl,
638 .hw_params = oxygen_rec_a_hw_params,
639 .hw_free = oxygen_hw_free,
640 .prepare = oxygen_prepare,
641 .trigger = oxygen_trigger,
642 .pointer = oxygen_pointer,
643 };
644
645 static const struct snd_pcm_ops oxygen_rec_b_ops = {
646 .open = oxygen_rec_b_open,
647 .close = oxygen_close,
648 .ioctl = snd_pcm_lib_ioctl,
649 .hw_params = oxygen_rec_b_hw_params,
650 .hw_free = oxygen_hw_free,
651 .prepare = oxygen_prepare,
652 .trigger = oxygen_trigger,
653 .pointer = oxygen_pointer,
654 };
655
656 static const struct snd_pcm_ops oxygen_rec_c_ops = {
657 .open = oxygen_rec_c_open,
658 .close = oxygen_close,
659 .ioctl = snd_pcm_lib_ioctl,
660 .hw_params = oxygen_rec_c_hw_params,
661 .hw_free = oxygen_hw_free,
662 .prepare = oxygen_prepare,
663 .trigger = oxygen_trigger,
664 .pointer = oxygen_pointer,
665 };
666
667 static const struct snd_pcm_ops oxygen_spdif_ops = {
668 .open = oxygen_spdif_open,
669 .close = oxygen_close,
670 .ioctl = snd_pcm_lib_ioctl,
671 .hw_params = oxygen_spdif_hw_params,
672 .hw_free = oxygen_spdif_hw_free,
673 .prepare = oxygen_prepare,
674 .trigger = oxygen_trigger,
675 .pointer = oxygen_pointer,
676 };
677
678 static const struct snd_pcm_ops oxygen_multich_ops = {
679 .open = oxygen_multich_open,
680 .close = oxygen_close,
681 .ioctl = snd_pcm_lib_ioctl,
682 .hw_params = oxygen_multich_hw_params,
683 .hw_free = oxygen_hw_free,
684 .prepare = oxygen_prepare,
685 .trigger = oxygen_trigger,
686 .pointer = oxygen_pointer,
687 };
688
689 static const struct snd_pcm_ops oxygen_ac97_ops = {
690 .open = oxygen_ac97_open,
691 .close = oxygen_close,
692 .ioctl = snd_pcm_lib_ioctl,
693 .hw_params = oxygen_hw_params,
694 .hw_free = oxygen_hw_free,
695 .prepare = oxygen_prepare,
696 .trigger = oxygen_trigger,
697 .pointer = oxygen_pointer,
698 };
699
700 int oxygen_pcm_init(struct oxygen *chip)
701 {
702 struct snd_pcm *pcm;
703 int outs, ins;
704 int err;
705
706 outs = !!(chip->model.device_config & PLAYBACK_0_TO_I2S);
707 ins = !!(chip->model.device_config & (CAPTURE_0_FROM_I2S_1 |
708 CAPTURE_0_FROM_I2S_2));
709 if (outs | ins) {
710 err = snd_pcm_new(chip->card, "Multichannel",
711 0, outs, ins, &pcm);
712 if (err < 0)
713 return err;
714 if (outs)
715 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
716 &oxygen_multich_ops);
717 if (chip->model.device_config & CAPTURE_0_FROM_I2S_1)
718 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
719 &oxygen_rec_a_ops);
720 else if (chip->model.device_config & CAPTURE_0_FROM_I2S_2)
721 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
722 &oxygen_rec_b_ops);
723 pcm->private_data = chip;
724 strcpy(pcm->name, "Multichannel");
725 if (outs)
726 snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream,
727 SNDRV_DMA_TYPE_DEV,
728 snd_dma_pci_data(chip->pci),
729 DEFAULT_BUFFER_BYTES_MULTICH,
730 BUFFER_BYTES_MAX_MULTICH);
731 if (ins)
732 snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream,
733 SNDRV_DMA_TYPE_DEV,
734 snd_dma_pci_data(chip->pci),
735 DEFAULT_BUFFER_BYTES,
736 BUFFER_BYTES_MAX);
737 }
738
739 outs = !!(chip->model.device_config & PLAYBACK_1_TO_SPDIF);
740 ins = !!(chip->model.device_config & CAPTURE_1_FROM_SPDIF);
741 if (outs | ins) {
742 err = snd_pcm_new(chip->card, "Digital", 1, outs, ins, &pcm);
743 if (err < 0)
744 return err;
745 if (outs)
746 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
747 &oxygen_spdif_ops);
748 if (ins)
749 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
750 &oxygen_rec_c_ops);
751 pcm->private_data = chip;
752 strcpy(pcm->name, "Digital");
753 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
754 snd_dma_pci_data(chip->pci),
755 DEFAULT_BUFFER_BYTES,
756 BUFFER_BYTES_MAX);
757 }
758
759 if (chip->has_ac97_1) {
760 outs = !!(chip->model.device_config & PLAYBACK_2_TO_AC97_1);
761 ins = !!(chip->model.device_config & CAPTURE_2_FROM_AC97_1);
762 } else {
763 outs = 0;
764 ins = !!(chip->model.device_config & CAPTURE_2_FROM_I2S_2);
765 }
766 if (outs | ins) {
767 err = snd_pcm_new(chip->card, outs ? "AC97" : "Analog2",
768 2, outs, ins, &pcm);
769 if (err < 0)
770 return err;
771 if (outs) {
772 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
773 &oxygen_ac97_ops);
774 oxygen_write8_masked(chip, OXYGEN_REC_ROUTING,
775 OXYGEN_REC_B_ROUTE_AC97_1,
776 OXYGEN_REC_B_ROUTE_MASK);
777 }
778 if (ins)
779 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
780 &oxygen_rec_b_ops);
781 pcm->private_data = chip;
782 strcpy(pcm->name, outs ? "Front Panel" : "Analog 2");
783 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
784 snd_dma_pci_data(chip->pci),
785 DEFAULT_BUFFER_BYTES,
786 BUFFER_BYTES_MAX);
787 }
788
789 ins = !!(chip->model.device_config & CAPTURE_3_FROM_I2S_3);
790 if (ins) {
791 err = snd_pcm_new(chip->card, "Analog3", 3, 0, ins, &pcm);
792 if (err < 0)
793 return err;
794 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
795 &oxygen_rec_c_ops);
796 oxygen_write8_masked(chip, OXYGEN_REC_ROUTING,
797 OXYGEN_REC_C_ROUTE_I2S_ADC_3,
798 OXYGEN_REC_C_ROUTE_MASK);
799 pcm->private_data = chip;
800 strcpy(pcm->name, "Analog 3");
801 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
802 snd_dma_pci_data(chip->pci),
803 DEFAULT_BUFFER_BYTES,
804 BUFFER_BYTES_MAX);
805 }
806 return 0;
807 }
Linux kernel - Deliverables
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