Commit | Line | Data |
---|---|---|
1245b700 NK |
1 | /* |
2 | * soc-compress.c -- ALSA SoC Compress | |
3 | * | |
4 | * Copyright (C) 2012 Intel Corp. | |
5 | * | |
6 | * Authors: Namarta Kohli <namartax.kohli@intel.com> | |
7 | * Ramesh Babu K V <ramesh.babu@linux.intel.com> | |
8 | * Vinod Koul <vinod.koul@linux.intel.com> | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify it | |
11 | * under the terms of the GNU General Public License as published by the | |
12 | * Free Software Foundation; either version 2 of the License, or (at your | |
13 | * option) any later version. | |
14 | * | |
15 | */ | |
16 | ||
17 | #include <linux/kernel.h> | |
18 | #include <linux/init.h> | |
19 | #include <linux/delay.h> | |
20 | #include <linux/slab.h> | |
21 | #include <linux/workqueue.h> | |
22 | #include <sound/core.h> | |
23 | #include <sound/compress_params.h> | |
24 | #include <sound/compress_driver.h> | |
25 | #include <sound/soc.h> | |
26 | #include <sound/initval.h> | |
2a99ef0f | 27 | #include <sound/soc-dpcm.h> |
1245b700 NK |
28 | |
29 | static int soc_compr_open(struct snd_compr_stream *cstream) | |
30 | { | |
31 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
32 | struct snd_soc_platform *platform = rtd->platform; | |
1245b700 NK |
33 | int ret = 0; |
34 | ||
15e2e619 CK |
35 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
36 | ||
1245b700 NK |
37 | if (platform->driver->compr_ops && platform->driver->compr_ops->open) { |
38 | ret = platform->driver->compr_ops->open(cstream); | |
39 | if (ret < 0) { | |
f4333203 LPC |
40 | pr_err("compress asoc: can't open platform %s\n", |
41 | platform->component.name); | |
1245b700 NK |
42 | goto out; |
43 | } | |
44 | } | |
45 | ||
46 | if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->startup) { | |
47 | ret = rtd->dai_link->compr_ops->startup(cstream); | |
48 | if (ret < 0) { | |
49 | pr_err("compress asoc: %s startup failed\n", rtd->dai_link->name); | |
50 | goto machine_err; | |
51 | } | |
52 | } | |
53 | ||
24894b76 | 54 | snd_soc_runtime_activate(rtd, cstream->direction); |
1245b700 | 55 | |
15e2e619 CK |
56 | mutex_unlock(&rtd->pcm_mutex); |
57 | ||
1245b700 NK |
58 | return 0; |
59 | ||
60 | machine_err: | |
61 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
62 | platform->driver->compr_ops->free(cstream); | |
63 | out: | |
15e2e619 | 64 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
65 | return ret; |
66 | } | |
67 | ||
2a99ef0f LG |
68 | static int soc_compr_open_fe(struct snd_compr_stream *cstream) |
69 | { | |
70 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
71 | struct snd_pcm_substream *fe_substream = fe->pcm->streams[0].substream; | |
72 | struct snd_soc_platform *platform = fe->platform; | |
2a99ef0f LG |
73 | struct snd_soc_dpcm *dpcm; |
74 | struct snd_soc_dapm_widget_list *list; | |
75 | int stream; | |
76 | int ret = 0; | |
77 | ||
78 | if (cstream->direction == SND_COMPRESS_PLAYBACK) | |
79 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
80 | else | |
81 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
82 | ||
83 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
84 | ||
85 | if (platform->driver->compr_ops && platform->driver->compr_ops->open) { | |
86 | ret = platform->driver->compr_ops->open(cstream); | |
87 | if (ret < 0) { | |
f4333203 LPC |
88 | pr_err("compress asoc: can't open platform %s\n", |
89 | platform->component.name); | |
2a99ef0f LG |
90 | goto out; |
91 | } | |
92 | } | |
93 | ||
94 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->startup) { | |
95 | ret = fe->dai_link->compr_ops->startup(cstream); | |
96 | if (ret < 0) { | |
97 | pr_err("compress asoc: %s startup failed\n", fe->dai_link->name); | |
98 | goto machine_err; | |
99 | } | |
100 | } | |
101 | ||
102 | fe->dpcm[stream].runtime = fe_substream->runtime; | |
103 | ||
8f70e515 | 104 | ret = dpcm_path_get(fe, stream, &list); |
2e4ec1c0 | 105 | if (ret < 0) |
8f70e515 | 106 | goto fe_err; |
2e4ec1c0 | 107 | else if (ret == 0) |
2a99ef0f LG |
108 | dev_dbg(fe->dev, "ASoC: %s no valid %s route\n", |
109 | fe->dai_link->name, stream ? "capture" : "playback"); | |
2a99ef0f LG |
110 | |
111 | /* calculate valid and active FE <-> BE dpcms */ | |
112 | dpcm_process_paths(fe, stream, &list, 1); | |
113 | ||
114 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
115 | ||
116 | ret = dpcm_be_dai_startup(fe, stream); | |
117 | if (ret < 0) { | |
118 | /* clean up all links */ | |
119 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
120 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
121 | ||
122 | dpcm_be_disconnect(fe, stream); | |
123 | fe->dpcm[stream].runtime = NULL; | |
b0f12c61 | 124 | goto path_err; |
2a99ef0f LG |
125 | } |
126 | ||
127 | dpcm_clear_pending_state(fe, stream); | |
128 | dpcm_path_put(&list); | |
129 | ||
130 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
131 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
132 | ||
24894b76 | 133 | snd_soc_runtime_activate(fe, stream); |
2a99ef0f LG |
134 | |
135 | mutex_unlock(&fe->card->mutex); | |
136 | ||
137 | return 0; | |
138 | ||
b0f12c61 CK |
139 | path_err: |
140 | dpcm_path_put(&list); | |
2a99ef0f LG |
141 | fe_err: |
142 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown) | |
143 | fe->dai_link->compr_ops->shutdown(cstream); | |
144 | machine_err: | |
145 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
146 | platform->driver->compr_ops->free(cstream); | |
147 | out: | |
148 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
149 | mutex_unlock(&fe->card->mutex); | |
150 | return ret; | |
151 | } | |
152 | ||
202c8f70 CK |
153 | /* |
154 | * Power down the audio subsystem pmdown_time msecs after close is called. | |
155 | * This is to ensure there are no pops or clicks in between any music tracks | |
156 | * due to DAPM power cycling. | |
157 | */ | |
158 | static void close_delayed_work(struct work_struct *work) | |
159 | { | |
160 | struct snd_soc_pcm_runtime *rtd = | |
161 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
162 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
163 | ||
164 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); | |
165 | ||
166 | dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n", | |
167 | codec_dai->driver->playback.stream_name, | |
168 | codec_dai->playback_active ? "active" : "inactive", | |
169 | rtd->pop_wait ? "yes" : "no"); | |
170 | ||
171 | /* are we waiting on this codec DAI stream */ | |
172 | if (rtd->pop_wait == 1) { | |
173 | rtd->pop_wait = 0; | |
174 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK, | |
175 | SND_SOC_DAPM_STREAM_STOP); | |
176 | } | |
177 | ||
178 | mutex_unlock(&rtd->pcm_mutex); | |
179 | } | |
180 | ||
1245b700 NK |
181 | static int soc_compr_free(struct snd_compr_stream *cstream) |
182 | { | |
183 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
184 | struct snd_soc_platform *platform = rtd->platform; | |
185 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
186 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
24894b76 | 187 | int stream; |
1245b700 | 188 | |
15e2e619 CK |
189 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
190 | ||
24894b76 LPC |
191 | if (cstream->direction == SND_COMPRESS_PLAYBACK) |
192 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
193 | else | |
194 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
1245b700 | 195 | |
24894b76 | 196 | snd_soc_runtime_deactivate(rtd, stream); |
da18396f | 197 | |
24894b76 | 198 | snd_soc_dai_digital_mute(codec_dai, 1, cstream->direction); |
1245b700 NK |
199 | |
200 | if (!cpu_dai->active) | |
201 | cpu_dai->rate = 0; | |
202 | ||
203 | if (!codec_dai->active) | |
204 | codec_dai->rate = 0; | |
205 | ||
206 | ||
207 | if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->shutdown) | |
208 | rtd->dai_link->compr_ops->shutdown(cstream); | |
209 | ||
210 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
211 | platform->driver->compr_ops->free(cstream); | |
1245b700 NK |
212 | |
213 | if (cstream->direction == SND_COMPRESS_PLAYBACK) { | |
208a1589 | 214 | if (snd_soc_runtime_ignore_pmdown_time(rtd)) { |
1245b700 NK |
215 | snd_soc_dapm_stream_event(rtd, |
216 | SNDRV_PCM_STREAM_PLAYBACK, | |
217 | SND_SOC_DAPM_STREAM_STOP); | |
8c3d2aa4 | 218 | } else { |
9bffb1fb | 219 | rtd->pop_wait = 1; |
3d24cfe4 MB |
220 | queue_delayed_work(system_power_efficient_wq, |
221 | &rtd->delayed_work, | |
222 | msecs_to_jiffies(rtd->pmdown_time)); | |
8c3d2aa4 | 223 | } |
1245b700 NK |
224 | } else { |
225 | /* capture streams can be powered down now */ | |
226 | snd_soc_dapm_stream_event(rtd, | |
227 | SNDRV_PCM_STREAM_CAPTURE, | |
228 | SND_SOC_DAPM_STREAM_STOP); | |
229 | } | |
230 | ||
15e2e619 | 231 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
232 | return 0; |
233 | } | |
234 | ||
2a99ef0f LG |
235 | static int soc_compr_free_fe(struct snd_compr_stream *cstream) |
236 | { | |
237 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
238 | struct snd_soc_platform *platform = fe->platform; | |
2a99ef0f LG |
239 | struct snd_soc_dpcm *dpcm; |
240 | int stream, ret; | |
241 | ||
242 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
243 | ||
24894b76 | 244 | if (cstream->direction == SND_COMPRESS_PLAYBACK) |
2a99ef0f | 245 | stream = SNDRV_PCM_STREAM_PLAYBACK; |
24894b76 | 246 | else |
2a99ef0f | 247 | stream = SNDRV_PCM_STREAM_CAPTURE; |
2a99ef0f | 248 | |
24894b76 | 249 | snd_soc_runtime_deactivate(fe, stream); |
2a99ef0f LG |
250 | |
251 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
252 | ||
253 | ret = dpcm_be_dai_hw_free(fe, stream); | |
254 | if (ret < 0) | |
255 | dev_err(fe->dev, "compressed hw_free failed %d\n", ret); | |
256 | ||
257 | ret = dpcm_be_dai_shutdown(fe, stream); | |
258 | ||
259 | /* mark FE's links ready to prune */ | |
260 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
261 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
262 | ||
15f6b09a | 263 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP); |
2a99ef0f LG |
264 | |
265 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
266 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
267 | ||
268 | dpcm_be_disconnect(fe, stream); | |
269 | ||
270 | fe->dpcm[stream].runtime = NULL; | |
271 | ||
272 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown) | |
273 | fe->dai_link->compr_ops->shutdown(cstream); | |
274 | ||
275 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
276 | platform->driver->compr_ops->free(cstream); | |
277 | ||
278 | mutex_unlock(&fe->card->mutex); | |
279 | return 0; | |
280 | } | |
281 | ||
1245b700 NK |
282 | static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd) |
283 | { | |
284 | ||
285 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
286 | struct snd_soc_platform *platform = rtd->platform; | |
287 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
288 | int ret = 0; | |
289 | ||
15e2e619 CK |
290 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
291 | ||
1245b700 NK |
292 | if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) { |
293 | ret = platform->driver->compr_ops->trigger(cstream, cmd); | |
294 | if (ret < 0) | |
15e2e619 | 295 | goto out; |
1245b700 NK |
296 | } |
297 | ||
da18396f MB |
298 | switch (cmd) { |
299 | case SNDRV_PCM_TRIGGER_START: | |
300 | snd_soc_dai_digital_mute(codec_dai, 0, cstream->direction); | |
301 | break; | |
302 | case SNDRV_PCM_TRIGGER_STOP: | |
303 | snd_soc_dai_digital_mute(codec_dai, 1, cstream->direction); | |
304 | break; | |
e38b9b74 | 305 | } |
1245b700 | 306 | |
15e2e619 CK |
307 | out: |
308 | mutex_unlock(&rtd->pcm_mutex); | |
1245b700 NK |
309 | return ret; |
310 | } | |
311 | ||
2a99ef0f LG |
312 | static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd) |
313 | { | |
314 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
315 | struct snd_soc_platform *platform = fe->platform; | |
316 | int ret = 0, stream; | |
317 | ||
318 | if (cmd == SND_COMPR_TRIGGER_PARTIAL_DRAIN || | |
319 | cmd == SND_COMPR_TRIGGER_DRAIN) { | |
320 | ||
321 | if (platform->driver->compr_ops && | |
15b8e94f DC |
322 | platform->driver->compr_ops->trigger) |
323 | return platform->driver->compr_ops->trigger(cstream, | |
324 | cmd); | |
2a99ef0f LG |
325 | } |
326 | ||
327 | if (cstream->direction == SND_COMPRESS_PLAYBACK) | |
328 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
329 | else | |
330 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
331 | ||
332 | ||
333 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
334 | ||
335 | if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) { | |
336 | ret = platform->driver->compr_ops->trigger(cstream, cmd); | |
337 | if (ret < 0) | |
338 | goto out; | |
339 | } | |
340 | ||
341 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
342 | ||
343 | ret = dpcm_be_dai_trigger(fe, stream, cmd); | |
344 | ||
345 | switch (cmd) { | |
346 | case SNDRV_PCM_TRIGGER_START: | |
347 | case SNDRV_PCM_TRIGGER_RESUME: | |
348 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
349 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
350 | break; | |
351 | case SNDRV_PCM_TRIGGER_STOP: | |
352 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
353 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; | |
354 | break; | |
355 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
356 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED; | |
357 | break; | |
358 | } | |
359 | ||
360 | out: | |
361 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
362 | mutex_unlock(&fe->card->mutex); | |
363 | return ret; | |
364 | } | |
365 | ||
1245b700 NK |
366 | static int soc_compr_set_params(struct snd_compr_stream *cstream, |
367 | struct snd_compr_params *params) | |
368 | { | |
369 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
370 | struct snd_soc_platform *platform = rtd->platform; | |
1245b700 NK |
371 | int ret = 0; |
372 | ||
15e2e619 CK |
373 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
374 | ||
1245b700 NK |
375 | /* first we call set_params for the platform driver |
376 | * this should configure the soc side | |
377 | * if the machine has compressed ops then we call that as well | |
378 | * expectation is that platform and machine will configure everything | |
379 | * for this compress path, like configuring pcm port for codec | |
380 | */ | |
381 | if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) { | |
382 | ret = platform->driver->compr_ops->set_params(cstream, params); | |
383 | if (ret < 0) | |
fa40ef20 | 384 | goto err; |
1245b700 NK |
385 | } |
386 | ||
387 | if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->set_params) { | |
388 | ret = rtd->dai_link->compr_ops->set_params(cstream); | |
389 | if (ret < 0) | |
fa40ef20 | 390 | goto err; |
1245b700 NK |
391 | } |
392 | ||
2c071ed7 CK |
393 | if (cstream->direction == SND_COMPRESS_PLAYBACK) |
394 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK, | |
395 | SND_SOC_DAPM_STREAM_START); | |
396 | else | |
397 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_CAPTURE, | |
398 | SND_SOC_DAPM_STREAM_START); | |
1245b700 | 399 | |
fa40ef20 CK |
400 | /* cancel any delayed stream shutdown that is pending */ |
401 | rtd->pop_wait = 0; | |
402 | mutex_unlock(&rtd->pcm_mutex); | |
403 | ||
404 | cancel_delayed_work_sync(&rtd->delayed_work); | |
405 | ||
406 | return ret; | |
407 | ||
408 | err: | |
15e2e619 | 409 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
410 | return ret; |
411 | } | |
412 | ||
2a99ef0f LG |
413 | static int soc_compr_set_params_fe(struct snd_compr_stream *cstream, |
414 | struct snd_compr_params *params) | |
415 | { | |
416 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
417 | struct snd_pcm_substream *fe_substream = fe->pcm->streams[0].substream; | |
418 | struct snd_soc_platform *platform = fe->platform; | |
419 | int ret = 0, stream; | |
420 | ||
421 | if (cstream->direction == SND_COMPRESS_PLAYBACK) | |
422 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
423 | else | |
424 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
425 | ||
426 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
427 | ||
428 | if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) { | |
429 | ret = platform->driver->compr_ops->set_params(cstream, params); | |
430 | if (ret < 0) | |
431 | goto out; | |
432 | } | |
433 | ||
434 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->set_params) { | |
435 | ret = fe->dai_link->compr_ops->set_params(cstream); | |
436 | if (ret < 0) | |
437 | goto out; | |
438 | } | |
439 | ||
440 | /* | |
441 | * Create an empty hw_params for the BE as the machine driver must | |
442 | * fix this up to match DSP decoder and ASRC configuration. | |
443 | * I.e. machine driver fixup for compressed BE is mandatory. | |
444 | */ | |
445 | memset(&fe->dpcm[fe_substream->stream].hw_params, 0, | |
446 | sizeof(struct snd_pcm_hw_params)); | |
447 | ||
448 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
449 | ||
450 | ret = dpcm_be_dai_hw_params(fe, stream); | |
451 | if (ret < 0) | |
452 | goto out; | |
453 | ||
454 | ret = dpcm_be_dai_prepare(fe, stream); | |
455 | if (ret < 0) | |
456 | goto out; | |
457 | ||
15f6b09a | 458 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START); |
2a99ef0f LG |
459 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; |
460 | ||
461 | out: | |
462 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
463 | mutex_unlock(&fe->card->mutex); | |
464 | return ret; | |
465 | } | |
466 | ||
1245b700 NK |
467 | static int soc_compr_get_params(struct snd_compr_stream *cstream, |
468 | struct snd_codec *params) | |
469 | { | |
470 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
471 | struct snd_soc_platform *platform = rtd->platform; | |
472 | int ret = 0; | |
473 | ||
15e2e619 CK |
474 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
475 | ||
1245b700 NK |
476 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_params) |
477 | ret = platform->driver->compr_ops->get_params(cstream, params); | |
478 | ||
15e2e619 | 479 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
480 | return ret; |
481 | } | |
482 | ||
483 | static int soc_compr_get_caps(struct snd_compr_stream *cstream, | |
484 | struct snd_compr_caps *caps) | |
485 | { | |
486 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
487 | struct snd_soc_platform *platform = rtd->platform; | |
488 | int ret = 0; | |
489 | ||
15e2e619 CK |
490 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
491 | ||
1245b700 NK |
492 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_caps) |
493 | ret = platform->driver->compr_ops->get_caps(cstream, caps); | |
494 | ||
15e2e619 | 495 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
496 | return ret; |
497 | } | |
498 | ||
499 | static int soc_compr_get_codec_caps(struct snd_compr_stream *cstream, | |
500 | struct snd_compr_codec_caps *codec) | |
501 | { | |
502 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
503 | struct snd_soc_platform *platform = rtd->platform; | |
504 | int ret = 0; | |
505 | ||
15e2e619 CK |
506 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
507 | ||
1245b700 NK |
508 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_codec_caps) |
509 | ret = platform->driver->compr_ops->get_codec_caps(cstream, codec); | |
510 | ||
15e2e619 | 511 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
512 | return ret; |
513 | } | |
514 | ||
515 | static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes) | |
516 | { | |
517 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
518 | struct snd_soc_platform *platform = rtd->platform; | |
519 | int ret = 0; | |
520 | ||
15e2e619 CK |
521 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
522 | ||
1245b700 NK |
523 | if (platform->driver->compr_ops && platform->driver->compr_ops->ack) |
524 | ret = platform->driver->compr_ops->ack(cstream, bytes); | |
525 | ||
15e2e619 | 526 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
527 | return ret; |
528 | } | |
529 | ||
530 | static int soc_compr_pointer(struct snd_compr_stream *cstream, | |
531 | struct snd_compr_tstamp *tstamp) | |
532 | { | |
533 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
534 | struct snd_soc_platform *platform = rtd->platform; | |
7c9190f7 | 535 | int ret = 0; |
1245b700 | 536 | |
15e2e619 CK |
537 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
538 | ||
1245b700 | 539 | if (platform->driver->compr_ops && platform->driver->compr_ops->pointer) |
7c9190f7 | 540 | ret = platform->driver->compr_ops->pointer(cstream, tstamp); |
1245b700 | 541 | |
15e2e619 | 542 | mutex_unlock(&rtd->pcm_mutex); |
7c9190f7 | 543 | return ret; |
1245b700 NK |
544 | } |
545 | ||
1f88eb0f | 546 | static int soc_compr_copy(struct snd_compr_stream *cstream, |
4daf891c | 547 | char __user *buf, size_t count) |
1f88eb0f CK |
548 | { |
549 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
550 | struct snd_soc_platform *platform = rtd->platform; | |
551 | int ret = 0; | |
552 | ||
553 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); | |
554 | ||
555 | if (platform->driver->compr_ops && platform->driver->compr_ops->copy) | |
556 | ret = platform->driver->compr_ops->copy(cstream, buf, count); | |
557 | ||
558 | mutex_unlock(&rtd->pcm_mutex); | |
559 | return ret; | |
560 | } | |
561 | ||
02bd90e8 | 562 | static int soc_compr_set_metadata(struct snd_compr_stream *cstream, |
36953d98 JK |
563 | struct snd_compr_metadata *metadata) |
564 | { | |
565 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
566 | struct snd_soc_platform *platform = rtd->platform; | |
567 | int ret = 0; | |
568 | ||
569 | if (platform->driver->compr_ops && platform->driver->compr_ops->set_metadata) | |
570 | ret = platform->driver->compr_ops->set_metadata(cstream, metadata); | |
571 | ||
572 | return ret; | |
573 | } | |
574 | ||
02bd90e8 | 575 | static int soc_compr_get_metadata(struct snd_compr_stream *cstream, |
36953d98 JK |
576 | struct snd_compr_metadata *metadata) |
577 | { | |
578 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
579 | struct snd_soc_platform *platform = rtd->platform; | |
580 | int ret = 0; | |
581 | ||
582 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_metadata) | |
583 | ret = platform->driver->compr_ops->get_metadata(cstream, metadata); | |
584 | ||
585 | return ret; | |
586 | } | |
2a99ef0f | 587 | |
1245b700 NK |
588 | /* ASoC Compress operations */ |
589 | static struct snd_compr_ops soc_compr_ops = { | |
590 | .open = soc_compr_open, | |
591 | .free = soc_compr_free, | |
592 | .set_params = soc_compr_set_params, | |
02bd90e8 VK |
593 | .set_metadata = soc_compr_set_metadata, |
594 | .get_metadata = soc_compr_get_metadata, | |
1245b700 NK |
595 | .get_params = soc_compr_get_params, |
596 | .trigger = soc_compr_trigger, | |
597 | .pointer = soc_compr_pointer, | |
598 | .ack = soc_compr_ack, | |
599 | .get_caps = soc_compr_get_caps, | |
600 | .get_codec_caps = soc_compr_get_codec_caps | |
601 | }; | |
602 | ||
2a99ef0f LG |
603 | /* ASoC Dynamic Compress operations */ |
604 | static struct snd_compr_ops soc_compr_dyn_ops = { | |
605 | .open = soc_compr_open_fe, | |
606 | .free = soc_compr_free_fe, | |
607 | .set_params = soc_compr_set_params_fe, | |
608 | .get_params = soc_compr_get_params, | |
609 | .set_metadata = soc_compr_set_metadata, | |
610 | .get_metadata = soc_compr_get_metadata, | |
611 | .trigger = soc_compr_trigger_fe, | |
612 | .pointer = soc_compr_pointer, | |
613 | .ack = soc_compr_ack, | |
614 | .get_caps = soc_compr_get_caps, | |
615 | .get_codec_caps = soc_compr_get_codec_caps | |
616 | }; | |
617 | ||
6f0c4226 JY |
618 | /** |
619 | * snd_soc_new_compress - create a new compress. | |
620 | * | |
621 | * @rtd: The runtime for which we will create compress | |
622 | * @num: the device index number (zero based - shared with normal PCMs) | |
623 | * | |
624 | * Return: 0 for success, else error. | |
625 | */ | |
626 | int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) | |
1245b700 NK |
627 | { |
628 | struct snd_soc_codec *codec = rtd->codec; | |
1f88eb0f | 629 | struct snd_soc_platform *platform = rtd->platform; |
1245b700 NK |
630 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
631 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
632 | struct snd_compr *compr; | |
2a99ef0f | 633 | struct snd_pcm *be_pcm; |
1245b700 NK |
634 | char new_name[64]; |
635 | int ret = 0, direction = 0; | |
a1068045 | 636 | int playback = 0, capture = 0; |
1245b700 | 637 | |
8151d5e6 BC |
638 | if (rtd->num_codecs > 1) { |
639 | dev_err(rtd->card->dev, "Multicodec not supported for compressed stream\n"); | |
640 | return -EINVAL; | |
641 | } | |
642 | ||
1245b700 NK |
643 | /* check client and interface hw capabilities */ |
644 | snprintf(new_name, sizeof(new_name), "%s %s-%d", | |
645 | rtd->dai_link->stream_name, codec_dai->name, num); | |
daa2db59 CK |
646 | |
647 | if (codec_dai->driver->playback.channels_min) | |
a1068045 VK |
648 | playback = 1; |
649 | if (codec_dai->driver->capture.channels_min) | |
650 | capture = 1; | |
651 | ||
652 | capture = capture && cpu_dai->driver->capture.channels_min; | |
653 | playback = playback && cpu_dai->driver->playback.channels_min; | |
654 | ||
655 | /* | |
656 | * Compress devices are unidirectional so only one of the directions | |
657 | * should be set, check for that (xor) | |
658 | */ | |
659 | if (playback + capture != 1) { | |
660 | dev_err(rtd->card->dev, "Invalid direction for compress P %d, C %d\n", | |
661 | playback, capture); | |
662 | return -EINVAL; | |
663 | } | |
664 | ||
665 | if(playback) | |
daa2db59 | 666 | direction = SND_COMPRESS_PLAYBACK; |
daa2db59 | 667 | else |
a1068045 | 668 | direction = SND_COMPRESS_CAPTURE; |
daa2db59 | 669 | |
1245b700 NK |
670 | compr = kzalloc(sizeof(*compr), GFP_KERNEL); |
671 | if (compr == NULL) { | |
672 | snd_printk(KERN_ERR "Cannot allocate compr\n"); | |
673 | return -ENOMEM; | |
674 | } | |
675 | ||
1f88eb0f CK |
676 | compr->ops = devm_kzalloc(rtd->card->dev, sizeof(soc_compr_ops), |
677 | GFP_KERNEL); | |
678 | if (compr->ops == NULL) { | |
679 | dev_err(rtd->card->dev, "Cannot allocate compressed ops\n"); | |
680 | ret = -ENOMEM; | |
681 | goto compr_err; | |
682 | } | |
2a99ef0f LG |
683 | |
684 | if (rtd->dai_link->dynamic) { | |
685 | snprintf(new_name, sizeof(new_name), "(%s)", | |
686 | rtd->dai_link->stream_name); | |
687 | ||
688 | ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num, | |
d3268a40 QY |
689 | rtd->dai_link->dpcm_playback, |
690 | rtd->dai_link->dpcm_capture, &be_pcm); | |
2a99ef0f LG |
691 | if (ret < 0) { |
692 | dev_err(rtd->card->dev, "ASoC: can't create compressed for %s\n", | |
693 | rtd->dai_link->name); | |
694 | goto compr_err; | |
695 | } | |
696 | ||
697 | rtd->pcm = be_pcm; | |
698 | rtd->fe_compr = 1; | |
d3268a40 QY |
699 | if (rtd->dai_link->dpcm_playback) |
700 | be_pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd; | |
701 | else if (rtd->dai_link->dpcm_capture) | |
702 | be_pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->private_data = rtd; | |
2a99ef0f LG |
703 | memcpy(compr->ops, &soc_compr_dyn_ops, sizeof(soc_compr_dyn_ops)); |
704 | } else | |
705 | memcpy(compr->ops, &soc_compr_ops, sizeof(soc_compr_ops)); | |
1f88eb0f CK |
706 | |
707 | /* Add copy callback for not memory mapped DSPs */ | |
708 | if (platform->driver->compr_ops && platform->driver->compr_ops->copy) | |
709 | compr->ops->copy = soc_compr_copy; | |
710 | ||
1245b700 | 711 | mutex_init(&compr->lock); |
e5241a8c RF |
712 | |
713 | snprintf(new_name, sizeof(new_name), "%s %s-%d", | |
714 | rtd->dai_link->stream_name, | |
715 | rtd->codec_dai->name, num); | |
716 | ||
717 | ret = snd_compress_new(rtd->card->snd_card, num, direction, | |
718 | new_name, compr); | |
1245b700 NK |
719 | if (ret < 0) { |
720 | pr_err("compress asoc: can't create compress for codec %s\n", | |
f4333203 | 721 | codec->component.name); |
1f88eb0f | 722 | goto compr_err; |
1245b700 NK |
723 | } |
724 | ||
202c8f70 CK |
725 | /* DAPM dai link stream work */ |
726 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
727 | ||
1245b700 NK |
728 | rtd->compr = compr; |
729 | compr->private_data = rtd; | |
730 | ||
731 | printk(KERN_INFO "compress asoc: %s <-> %s mapping ok\n", codec_dai->name, | |
732 | cpu_dai->name); | |
733 | return ret; | |
1f88eb0f CK |
734 | |
735 | compr_err: | |
736 | kfree(compr); | |
737 | return ret; | |
1245b700 | 738 | } |
6f0c4226 | 739 | EXPORT_SYMBOL_GPL(snd_soc_new_compress); |