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Commit | Line | Data |
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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; | |
2e622ae4 | 33 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1245b700 NK |
34 | int ret = 0; |
35 | ||
15e2e619 CK |
36 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
37 | ||
2e622ae4 VK |
38 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->startup) { |
39 | ret = cpu_dai->driver->cops->startup(cstream, cpu_dai); | |
40 | if (ret < 0) { | |
41 | dev_err(cpu_dai->dev, "Compress ASoC: can't open interface %s: %d\n", | |
42 | cpu_dai->name, ret); | |
43 | goto out; | |
44 | } | |
45 | } | |
46 | ||
1245b700 NK |
47 | if (platform->driver->compr_ops && platform->driver->compr_ops->open) { |
48 | ret = platform->driver->compr_ops->open(cstream); | |
49 | if (ret < 0) { | |
f4333203 LPC |
50 | pr_err("compress asoc: can't open platform %s\n", |
51 | platform->component.name); | |
2e622ae4 | 52 | goto plat_err; |
1245b700 NK |
53 | } |
54 | } | |
55 | ||
56 | if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->startup) { | |
57 | ret = rtd->dai_link->compr_ops->startup(cstream); | |
58 | if (ret < 0) { | |
59 | pr_err("compress asoc: %s startup failed\n", rtd->dai_link->name); | |
60 | goto machine_err; | |
61 | } | |
62 | } | |
63 | ||
24894b76 | 64 | snd_soc_runtime_activate(rtd, cstream->direction); |
1245b700 | 65 | |
15e2e619 CK |
66 | mutex_unlock(&rtd->pcm_mutex); |
67 | ||
1245b700 NK |
68 | return 0; |
69 | ||
70 | machine_err: | |
71 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
72 | platform->driver->compr_ops->free(cstream); | |
2e622ae4 VK |
73 | plat_err: |
74 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->shutdown) | |
75 | cpu_dai->driver->cops->shutdown(cstream, cpu_dai); | |
1245b700 | 76 | out: |
15e2e619 | 77 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
78 | return ret; |
79 | } | |
80 | ||
2a99ef0f LG |
81 | static int soc_compr_open_fe(struct snd_compr_stream *cstream) |
82 | { | |
83 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
01b8cedf SBP |
84 | struct snd_pcm_substream *fe_substream = |
85 | fe->pcm->streams[cstream->direction].substream; | |
2a99ef0f | 86 | struct snd_soc_platform *platform = fe->platform; |
2e622ae4 | 87 | struct snd_soc_dai *cpu_dai = fe->cpu_dai; |
2a99ef0f LG |
88 | struct snd_soc_dpcm *dpcm; |
89 | struct snd_soc_dapm_widget_list *list; | |
90 | int stream; | |
91 | int ret = 0; | |
92 | ||
93 | if (cstream->direction == SND_COMPRESS_PLAYBACK) | |
94 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
95 | else | |
96 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
97 | ||
98 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
99 | ||
2e622ae4 VK |
100 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->startup) { |
101 | ret = cpu_dai->driver->cops->startup(cstream, cpu_dai); | |
102 | if (ret < 0) { | |
103 | dev_err(cpu_dai->dev, "Compress ASoC: can't open interface %s: %d\n", | |
104 | cpu_dai->name, ret); | |
105 | goto out; | |
106 | } | |
107 | } | |
108 | ||
109 | ||
2a99ef0f LG |
110 | if (platform->driver->compr_ops && platform->driver->compr_ops->open) { |
111 | ret = platform->driver->compr_ops->open(cstream); | |
112 | if (ret < 0) { | |
f4333203 LPC |
113 | pr_err("compress asoc: can't open platform %s\n", |
114 | platform->component.name); | |
2e622ae4 | 115 | goto plat_err; |
2a99ef0f LG |
116 | } |
117 | } | |
118 | ||
119 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->startup) { | |
120 | ret = fe->dai_link->compr_ops->startup(cstream); | |
121 | if (ret < 0) { | |
122 | pr_err("compress asoc: %s startup failed\n", fe->dai_link->name); | |
123 | goto machine_err; | |
124 | } | |
125 | } | |
126 | ||
127 | fe->dpcm[stream].runtime = fe_substream->runtime; | |
128 | ||
8f70e515 | 129 | ret = dpcm_path_get(fe, stream, &list); |
2e4ec1c0 | 130 | if (ret < 0) |
8f70e515 | 131 | goto fe_err; |
2e4ec1c0 | 132 | else if (ret == 0) |
2a99ef0f LG |
133 | dev_dbg(fe->dev, "ASoC: %s no valid %s route\n", |
134 | fe->dai_link->name, stream ? "capture" : "playback"); | |
2a99ef0f LG |
135 | |
136 | /* calculate valid and active FE <-> BE dpcms */ | |
137 | dpcm_process_paths(fe, stream, &list, 1); | |
138 | ||
139 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
140 | ||
141 | ret = dpcm_be_dai_startup(fe, stream); | |
142 | if (ret < 0) { | |
143 | /* clean up all links */ | |
144 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
145 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
146 | ||
147 | dpcm_be_disconnect(fe, stream); | |
148 | fe->dpcm[stream].runtime = NULL; | |
b0f12c61 | 149 | goto path_err; |
2a99ef0f LG |
150 | } |
151 | ||
152 | dpcm_clear_pending_state(fe, stream); | |
153 | dpcm_path_put(&list); | |
154 | ||
155 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
156 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
157 | ||
24894b76 | 158 | snd_soc_runtime_activate(fe, stream); |
2a99ef0f LG |
159 | |
160 | mutex_unlock(&fe->card->mutex); | |
161 | ||
162 | return 0; | |
163 | ||
b0f12c61 CK |
164 | path_err: |
165 | dpcm_path_put(&list); | |
2a99ef0f LG |
166 | fe_err: |
167 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown) | |
168 | fe->dai_link->compr_ops->shutdown(cstream); | |
169 | machine_err: | |
170 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
171 | platform->driver->compr_ops->free(cstream); | |
2e622ae4 VK |
172 | plat_err: |
173 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->shutdown) | |
174 | cpu_dai->driver->cops->shutdown(cstream, cpu_dai); | |
2a99ef0f LG |
175 | out: |
176 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
177 | mutex_unlock(&fe->card->mutex); | |
178 | return ret; | |
179 | } | |
180 | ||
202c8f70 CK |
181 | /* |
182 | * Power down the audio subsystem pmdown_time msecs after close is called. | |
183 | * This is to ensure there are no pops or clicks in between any music tracks | |
184 | * due to DAPM power cycling. | |
185 | */ | |
186 | static void close_delayed_work(struct work_struct *work) | |
187 | { | |
188 | struct snd_soc_pcm_runtime *rtd = | |
189 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
190 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
191 | ||
192 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); | |
193 | ||
194 | dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n", | |
195 | codec_dai->driver->playback.stream_name, | |
196 | codec_dai->playback_active ? "active" : "inactive", | |
197 | rtd->pop_wait ? "yes" : "no"); | |
198 | ||
199 | /* are we waiting on this codec DAI stream */ | |
200 | if (rtd->pop_wait == 1) { | |
201 | rtd->pop_wait = 0; | |
202 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK, | |
203 | SND_SOC_DAPM_STREAM_STOP); | |
204 | } | |
205 | ||
206 | mutex_unlock(&rtd->pcm_mutex); | |
207 | } | |
208 | ||
1245b700 NK |
209 | static int soc_compr_free(struct snd_compr_stream *cstream) |
210 | { | |
211 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
212 | struct snd_soc_platform *platform = rtd->platform; | |
213 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
214 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
24894b76 | 215 | int stream; |
1245b700 | 216 | |
15e2e619 CK |
217 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
218 | ||
24894b76 LPC |
219 | if (cstream->direction == SND_COMPRESS_PLAYBACK) |
220 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
221 | else | |
222 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
1245b700 | 223 | |
24894b76 | 224 | snd_soc_runtime_deactivate(rtd, stream); |
da18396f | 225 | |
24894b76 | 226 | snd_soc_dai_digital_mute(codec_dai, 1, cstream->direction); |
1245b700 NK |
227 | |
228 | if (!cpu_dai->active) | |
229 | cpu_dai->rate = 0; | |
230 | ||
231 | if (!codec_dai->active) | |
232 | codec_dai->rate = 0; | |
233 | ||
234 | ||
235 | if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->shutdown) | |
236 | rtd->dai_link->compr_ops->shutdown(cstream); | |
237 | ||
238 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
239 | platform->driver->compr_ops->free(cstream); | |
1245b700 | 240 | |
2e622ae4 VK |
241 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->shutdown) |
242 | cpu_dai->driver->cops->shutdown(cstream, cpu_dai); | |
243 | ||
1245b700 | 244 | if (cstream->direction == SND_COMPRESS_PLAYBACK) { |
208a1589 | 245 | if (snd_soc_runtime_ignore_pmdown_time(rtd)) { |
1245b700 NK |
246 | snd_soc_dapm_stream_event(rtd, |
247 | SNDRV_PCM_STREAM_PLAYBACK, | |
248 | SND_SOC_DAPM_STREAM_STOP); | |
8c3d2aa4 | 249 | } else { |
9bffb1fb | 250 | rtd->pop_wait = 1; |
3d24cfe4 MB |
251 | queue_delayed_work(system_power_efficient_wq, |
252 | &rtd->delayed_work, | |
253 | msecs_to_jiffies(rtd->pmdown_time)); | |
8c3d2aa4 | 254 | } |
1245b700 NK |
255 | } else { |
256 | /* capture streams can be powered down now */ | |
257 | snd_soc_dapm_stream_event(rtd, | |
258 | SNDRV_PCM_STREAM_CAPTURE, | |
259 | SND_SOC_DAPM_STREAM_STOP); | |
260 | } | |
261 | ||
15e2e619 | 262 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
263 | return 0; |
264 | } | |
265 | ||
2a99ef0f LG |
266 | static int soc_compr_free_fe(struct snd_compr_stream *cstream) |
267 | { | |
268 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
269 | struct snd_soc_platform *platform = fe->platform; | |
2e622ae4 | 270 | struct snd_soc_dai *cpu_dai = fe->cpu_dai; |
2a99ef0f LG |
271 | struct snd_soc_dpcm *dpcm; |
272 | int stream, ret; | |
273 | ||
274 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
275 | ||
24894b76 | 276 | if (cstream->direction == SND_COMPRESS_PLAYBACK) |
2a99ef0f | 277 | stream = SNDRV_PCM_STREAM_PLAYBACK; |
24894b76 | 278 | else |
2a99ef0f | 279 | stream = SNDRV_PCM_STREAM_CAPTURE; |
2a99ef0f | 280 | |
24894b76 | 281 | snd_soc_runtime_deactivate(fe, stream); |
2a99ef0f LG |
282 | |
283 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
284 | ||
285 | ret = dpcm_be_dai_hw_free(fe, stream); | |
286 | if (ret < 0) | |
287 | dev_err(fe->dev, "compressed hw_free failed %d\n", ret); | |
288 | ||
289 | ret = dpcm_be_dai_shutdown(fe, stream); | |
290 | ||
291 | /* mark FE's links ready to prune */ | |
292 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
293 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
294 | ||
15f6b09a | 295 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP); |
2a99ef0f LG |
296 | |
297 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
298 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
299 | ||
300 | dpcm_be_disconnect(fe, stream); | |
301 | ||
302 | fe->dpcm[stream].runtime = NULL; | |
303 | ||
304 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown) | |
305 | fe->dai_link->compr_ops->shutdown(cstream); | |
306 | ||
307 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
308 | platform->driver->compr_ops->free(cstream); | |
309 | ||
2e622ae4 VK |
310 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->shutdown) |
311 | cpu_dai->driver->cops->shutdown(cstream, cpu_dai); | |
312 | ||
2a99ef0f LG |
313 | mutex_unlock(&fe->card->mutex); |
314 | return 0; | |
315 | } | |
316 | ||
1245b700 NK |
317 | static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd) |
318 | { | |
319 | ||
320 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
321 | struct snd_soc_platform *platform = rtd->platform; | |
322 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
2e622ae4 | 323 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1245b700 NK |
324 | int ret = 0; |
325 | ||
15e2e619 CK |
326 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
327 | ||
1245b700 NK |
328 | if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) { |
329 | ret = platform->driver->compr_ops->trigger(cstream, cmd); | |
330 | if (ret < 0) | |
15e2e619 | 331 | goto out; |
1245b700 NK |
332 | } |
333 | ||
2e622ae4 VK |
334 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->trigger) |
335 | cpu_dai->driver->cops->trigger(cstream, cmd, cpu_dai); | |
336 | ||
337 | ||
da18396f MB |
338 | switch (cmd) { |
339 | case SNDRV_PCM_TRIGGER_START: | |
340 | snd_soc_dai_digital_mute(codec_dai, 0, cstream->direction); | |
341 | break; | |
342 | case SNDRV_PCM_TRIGGER_STOP: | |
343 | snd_soc_dai_digital_mute(codec_dai, 1, cstream->direction); | |
344 | break; | |
e38b9b74 | 345 | } |
1245b700 | 346 | |
15e2e619 CK |
347 | out: |
348 | mutex_unlock(&rtd->pcm_mutex); | |
1245b700 NK |
349 | return ret; |
350 | } | |
351 | ||
2a99ef0f LG |
352 | static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd) |
353 | { | |
354 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
355 | struct snd_soc_platform *platform = fe->platform; | |
2e622ae4 | 356 | struct snd_soc_dai *cpu_dai = fe->cpu_dai; |
2a99ef0f LG |
357 | int ret = 0, stream; |
358 | ||
359 | if (cmd == SND_COMPR_TRIGGER_PARTIAL_DRAIN || | |
360 | cmd == SND_COMPR_TRIGGER_DRAIN) { | |
361 | ||
362 | if (platform->driver->compr_ops && | |
15b8e94f DC |
363 | platform->driver->compr_ops->trigger) |
364 | return platform->driver->compr_ops->trigger(cstream, | |
365 | cmd); | |
2a99ef0f LG |
366 | } |
367 | ||
368 | if (cstream->direction == SND_COMPRESS_PLAYBACK) | |
369 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
370 | else | |
371 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
372 | ||
373 | ||
374 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
375 | ||
2e622ae4 VK |
376 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->trigger) { |
377 | ret = cpu_dai->driver->cops->trigger(cstream, cmd, cpu_dai); | |
378 | if (ret < 0) | |
379 | goto out; | |
380 | } | |
381 | ||
2a99ef0f LG |
382 | if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) { |
383 | ret = platform->driver->compr_ops->trigger(cstream, cmd); | |
384 | if (ret < 0) | |
385 | goto out; | |
386 | } | |
387 | ||
388 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
389 | ||
390 | ret = dpcm_be_dai_trigger(fe, stream, cmd); | |
391 | ||
392 | switch (cmd) { | |
393 | case SNDRV_PCM_TRIGGER_START: | |
394 | case SNDRV_PCM_TRIGGER_RESUME: | |
395 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
396 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
397 | break; | |
398 | case SNDRV_PCM_TRIGGER_STOP: | |
399 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
400 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; | |
401 | break; | |
402 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
403 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED; | |
404 | break; | |
405 | } | |
406 | ||
407 | out: | |
408 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
409 | mutex_unlock(&fe->card->mutex); | |
410 | return ret; | |
411 | } | |
412 | ||
1245b700 NK |
413 | static int soc_compr_set_params(struct snd_compr_stream *cstream, |
414 | struct snd_compr_params *params) | |
415 | { | |
416 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
417 | struct snd_soc_platform *platform = rtd->platform; | |
2e622ae4 | 418 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1245b700 NK |
419 | int ret = 0; |
420 | ||
15e2e619 CK |
421 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
422 | ||
1245b700 NK |
423 | /* first we call set_params for the platform driver |
424 | * this should configure the soc side | |
425 | * if the machine has compressed ops then we call that as well | |
426 | * expectation is that platform and machine will configure everything | |
427 | * for this compress path, like configuring pcm port for codec | |
428 | */ | |
2e622ae4 VK |
429 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->set_params) { |
430 | ret = cpu_dai->driver->cops->set_params(cstream, params, cpu_dai); | |
431 | if (ret < 0) | |
432 | goto err; | |
433 | } | |
434 | ||
1245b700 NK |
435 | if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) { |
436 | ret = platform->driver->compr_ops->set_params(cstream, params); | |
437 | if (ret < 0) | |
fa40ef20 | 438 | goto err; |
1245b700 NK |
439 | } |
440 | ||
441 | if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->set_params) { | |
442 | ret = rtd->dai_link->compr_ops->set_params(cstream); | |
443 | if (ret < 0) | |
fa40ef20 | 444 | goto err; |
1245b700 NK |
445 | } |
446 | ||
2c071ed7 CK |
447 | if (cstream->direction == SND_COMPRESS_PLAYBACK) |
448 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK, | |
449 | SND_SOC_DAPM_STREAM_START); | |
450 | else | |
451 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_CAPTURE, | |
452 | SND_SOC_DAPM_STREAM_START); | |
1245b700 | 453 | |
fa40ef20 CK |
454 | /* cancel any delayed stream shutdown that is pending */ |
455 | rtd->pop_wait = 0; | |
456 | mutex_unlock(&rtd->pcm_mutex); | |
457 | ||
458 | cancel_delayed_work_sync(&rtd->delayed_work); | |
459 | ||
460 | return ret; | |
461 | ||
462 | err: | |
15e2e619 | 463 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
464 | return ret; |
465 | } | |
466 | ||
2a99ef0f LG |
467 | static int soc_compr_set_params_fe(struct snd_compr_stream *cstream, |
468 | struct snd_compr_params *params) | |
469 | { | |
470 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
01b8cedf SBP |
471 | struct snd_pcm_substream *fe_substream = |
472 | fe->pcm->streams[cstream->direction].substream; | |
2a99ef0f | 473 | struct snd_soc_platform *platform = fe->platform; |
2e622ae4 | 474 | struct snd_soc_dai *cpu_dai = fe->cpu_dai; |
2a99ef0f LG |
475 | int ret = 0, stream; |
476 | ||
477 | if (cstream->direction == SND_COMPRESS_PLAYBACK) | |
478 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
479 | else | |
480 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
481 | ||
482 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
483 | ||
2e622ae4 VK |
484 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->set_params) { |
485 | ret = cpu_dai->driver->cops->set_params(cstream, params, cpu_dai); | |
486 | if (ret < 0) | |
487 | goto out; | |
488 | } | |
489 | ||
2a99ef0f LG |
490 | if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) { |
491 | ret = platform->driver->compr_ops->set_params(cstream, params); | |
492 | if (ret < 0) | |
493 | goto out; | |
494 | } | |
495 | ||
496 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->set_params) { | |
497 | ret = fe->dai_link->compr_ops->set_params(cstream); | |
498 | if (ret < 0) | |
499 | goto out; | |
500 | } | |
501 | ||
502 | /* | |
503 | * Create an empty hw_params for the BE as the machine driver must | |
504 | * fix this up to match DSP decoder and ASRC configuration. | |
505 | * I.e. machine driver fixup for compressed BE is mandatory. | |
506 | */ | |
507 | memset(&fe->dpcm[fe_substream->stream].hw_params, 0, | |
508 | sizeof(struct snd_pcm_hw_params)); | |
509 | ||
510 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
511 | ||
512 | ret = dpcm_be_dai_hw_params(fe, stream); | |
513 | if (ret < 0) | |
514 | goto out; | |
515 | ||
516 | ret = dpcm_be_dai_prepare(fe, stream); | |
517 | if (ret < 0) | |
518 | goto out; | |
519 | ||
15f6b09a | 520 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START); |
2a99ef0f LG |
521 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; |
522 | ||
523 | out: | |
524 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
525 | mutex_unlock(&fe->card->mutex); | |
526 | return ret; | |
527 | } | |
528 | ||
1245b700 NK |
529 | static int soc_compr_get_params(struct snd_compr_stream *cstream, |
530 | struct snd_codec *params) | |
531 | { | |
532 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
533 | struct snd_soc_platform *platform = rtd->platform; | |
2e622ae4 | 534 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1245b700 NK |
535 | int ret = 0; |
536 | ||
15e2e619 CK |
537 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
538 | ||
2e622ae4 VK |
539 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->get_params) { |
540 | ret = cpu_dai->driver->cops->get_params(cstream, params, cpu_dai); | |
541 | if (ret < 0) | |
542 | goto err; | |
543 | } | |
544 | ||
1245b700 NK |
545 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_params) |
546 | ret = platform->driver->compr_ops->get_params(cstream, params); | |
547 | ||
2e622ae4 | 548 | err: |
15e2e619 | 549 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
550 | return ret; |
551 | } | |
552 | ||
553 | static int soc_compr_get_caps(struct snd_compr_stream *cstream, | |
554 | struct snd_compr_caps *caps) | |
555 | { | |
556 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
557 | struct snd_soc_platform *platform = rtd->platform; | |
558 | int ret = 0; | |
559 | ||
15e2e619 CK |
560 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
561 | ||
1245b700 NK |
562 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_caps) |
563 | ret = platform->driver->compr_ops->get_caps(cstream, caps); | |
564 | ||
15e2e619 | 565 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
566 | return ret; |
567 | } | |
568 | ||
569 | static int soc_compr_get_codec_caps(struct snd_compr_stream *cstream, | |
570 | struct snd_compr_codec_caps *codec) | |
571 | { | |
572 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
573 | struct snd_soc_platform *platform = rtd->platform; | |
574 | int ret = 0; | |
575 | ||
15e2e619 CK |
576 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
577 | ||
1245b700 NK |
578 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_codec_caps) |
579 | ret = platform->driver->compr_ops->get_codec_caps(cstream, codec); | |
580 | ||
15e2e619 | 581 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
582 | return ret; |
583 | } | |
584 | ||
585 | static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes) | |
586 | { | |
587 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
588 | struct snd_soc_platform *platform = rtd->platform; | |
2e622ae4 | 589 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1245b700 NK |
590 | int ret = 0; |
591 | ||
15e2e619 CK |
592 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
593 | ||
2e622ae4 VK |
594 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->ack) { |
595 | ret = cpu_dai->driver->cops->ack(cstream, bytes, cpu_dai); | |
596 | if (ret < 0) | |
597 | goto err; | |
598 | } | |
599 | ||
1245b700 NK |
600 | if (platform->driver->compr_ops && platform->driver->compr_ops->ack) |
601 | ret = platform->driver->compr_ops->ack(cstream, bytes); | |
602 | ||
2e622ae4 | 603 | err: |
15e2e619 | 604 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
605 | return ret; |
606 | } | |
607 | ||
608 | static int soc_compr_pointer(struct snd_compr_stream *cstream, | |
609 | struct snd_compr_tstamp *tstamp) | |
610 | { | |
611 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
612 | struct snd_soc_platform *platform = rtd->platform; | |
7c9190f7 | 613 | int ret = 0; |
2e622ae4 | 614 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1245b700 | 615 | |
15e2e619 CK |
616 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
617 | ||
2e622ae4 VK |
618 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->pointer) |
619 | cpu_dai->driver->cops->pointer(cstream, tstamp, cpu_dai); | |
620 | ||
1245b700 | 621 | if (platform->driver->compr_ops && platform->driver->compr_ops->pointer) |
7c9190f7 | 622 | ret = platform->driver->compr_ops->pointer(cstream, tstamp); |
1245b700 | 623 | |
15e2e619 | 624 | mutex_unlock(&rtd->pcm_mutex); |
7c9190f7 | 625 | return ret; |
1245b700 NK |
626 | } |
627 | ||
1f88eb0f | 628 | static int soc_compr_copy(struct snd_compr_stream *cstream, |
4daf891c | 629 | char __user *buf, size_t count) |
1f88eb0f CK |
630 | { |
631 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
632 | struct snd_soc_platform *platform = rtd->platform; | |
633 | int ret = 0; | |
634 | ||
635 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); | |
636 | ||
637 | if (platform->driver->compr_ops && platform->driver->compr_ops->copy) | |
638 | ret = platform->driver->compr_ops->copy(cstream, buf, count); | |
639 | ||
640 | mutex_unlock(&rtd->pcm_mutex); | |
641 | return ret; | |
642 | } | |
643 | ||
02bd90e8 | 644 | static int soc_compr_set_metadata(struct snd_compr_stream *cstream, |
36953d98 JK |
645 | struct snd_compr_metadata *metadata) |
646 | { | |
647 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
648 | struct snd_soc_platform *platform = rtd->platform; | |
2e622ae4 | 649 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
36953d98 JK |
650 | int ret = 0; |
651 | ||
2e622ae4 VK |
652 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->set_metadata) { |
653 | ret = cpu_dai->driver->cops->set_metadata(cstream, metadata, cpu_dai); | |
654 | if (ret < 0) | |
655 | return ret; | |
656 | } | |
657 | ||
36953d98 JK |
658 | if (platform->driver->compr_ops && platform->driver->compr_ops->set_metadata) |
659 | ret = platform->driver->compr_ops->set_metadata(cstream, metadata); | |
660 | ||
661 | return ret; | |
662 | } | |
663 | ||
02bd90e8 | 664 | static int soc_compr_get_metadata(struct snd_compr_stream *cstream, |
36953d98 JK |
665 | struct snd_compr_metadata *metadata) |
666 | { | |
667 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
668 | struct snd_soc_platform *platform = rtd->platform; | |
2e622ae4 | 669 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
36953d98 JK |
670 | int ret = 0; |
671 | ||
2e622ae4 VK |
672 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->get_metadata) { |
673 | ret = cpu_dai->driver->cops->get_metadata(cstream, metadata, cpu_dai); | |
674 | if (ret < 0) | |
675 | return ret; | |
676 | } | |
677 | ||
36953d98 JK |
678 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_metadata) |
679 | ret = platform->driver->compr_ops->get_metadata(cstream, metadata); | |
680 | ||
681 | return ret; | |
682 | } | |
2a99ef0f | 683 | |
1245b700 NK |
684 | /* ASoC Compress operations */ |
685 | static struct snd_compr_ops soc_compr_ops = { | |
686 | .open = soc_compr_open, | |
687 | .free = soc_compr_free, | |
688 | .set_params = soc_compr_set_params, | |
02bd90e8 VK |
689 | .set_metadata = soc_compr_set_metadata, |
690 | .get_metadata = soc_compr_get_metadata, | |
1245b700 NK |
691 | .get_params = soc_compr_get_params, |
692 | .trigger = soc_compr_trigger, | |
693 | .pointer = soc_compr_pointer, | |
694 | .ack = soc_compr_ack, | |
695 | .get_caps = soc_compr_get_caps, | |
696 | .get_codec_caps = soc_compr_get_codec_caps | |
697 | }; | |
698 | ||
2a99ef0f LG |
699 | /* ASoC Dynamic Compress operations */ |
700 | static struct snd_compr_ops soc_compr_dyn_ops = { | |
701 | .open = soc_compr_open_fe, | |
702 | .free = soc_compr_free_fe, | |
703 | .set_params = soc_compr_set_params_fe, | |
704 | .get_params = soc_compr_get_params, | |
705 | .set_metadata = soc_compr_set_metadata, | |
706 | .get_metadata = soc_compr_get_metadata, | |
707 | .trigger = soc_compr_trigger_fe, | |
708 | .pointer = soc_compr_pointer, | |
709 | .ack = soc_compr_ack, | |
710 | .get_caps = soc_compr_get_caps, | |
711 | .get_codec_caps = soc_compr_get_codec_caps | |
712 | }; | |
713 | ||
6f0c4226 JY |
714 | /** |
715 | * snd_soc_new_compress - create a new compress. | |
716 | * | |
717 | * @rtd: The runtime for which we will create compress | |
718 | * @num: the device index number (zero based - shared with normal PCMs) | |
719 | * | |
720 | * Return: 0 for success, else error. | |
721 | */ | |
722 | int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) | |
1245b700 NK |
723 | { |
724 | struct snd_soc_codec *codec = rtd->codec; | |
1f88eb0f | 725 | struct snd_soc_platform *platform = rtd->platform; |
1245b700 NK |
726 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
727 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
728 | struct snd_compr *compr; | |
2a99ef0f | 729 | struct snd_pcm *be_pcm; |
1245b700 NK |
730 | char new_name[64]; |
731 | int ret = 0, direction = 0; | |
a1068045 | 732 | int playback = 0, capture = 0; |
1245b700 | 733 | |
8151d5e6 BC |
734 | if (rtd->num_codecs > 1) { |
735 | dev_err(rtd->card->dev, "Multicodec not supported for compressed stream\n"); | |
736 | return -EINVAL; | |
737 | } | |
738 | ||
1245b700 NK |
739 | /* check client and interface hw capabilities */ |
740 | snprintf(new_name, sizeof(new_name), "%s %s-%d", | |
741 | rtd->dai_link->stream_name, codec_dai->name, num); | |
daa2db59 CK |
742 | |
743 | if (codec_dai->driver->playback.channels_min) | |
a1068045 VK |
744 | playback = 1; |
745 | if (codec_dai->driver->capture.channels_min) | |
746 | capture = 1; | |
747 | ||
748 | capture = capture && cpu_dai->driver->capture.channels_min; | |
749 | playback = playback && cpu_dai->driver->playback.channels_min; | |
750 | ||
751 | /* | |
752 | * Compress devices are unidirectional so only one of the directions | |
753 | * should be set, check for that (xor) | |
754 | */ | |
755 | if (playback + capture != 1) { | |
756 | dev_err(rtd->card->dev, "Invalid direction for compress P %d, C %d\n", | |
757 | playback, capture); | |
758 | return -EINVAL; | |
759 | } | |
760 | ||
761 | if(playback) | |
daa2db59 | 762 | direction = SND_COMPRESS_PLAYBACK; |
daa2db59 | 763 | else |
a1068045 | 764 | direction = SND_COMPRESS_CAPTURE; |
daa2db59 | 765 | |
1245b700 NK |
766 | compr = kzalloc(sizeof(*compr), GFP_KERNEL); |
767 | if (compr == NULL) { | |
768 | snd_printk(KERN_ERR "Cannot allocate compr\n"); | |
769 | return -ENOMEM; | |
770 | } | |
771 | ||
1f88eb0f CK |
772 | compr->ops = devm_kzalloc(rtd->card->dev, sizeof(soc_compr_ops), |
773 | GFP_KERNEL); | |
774 | if (compr->ops == NULL) { | |
775 | dev_err(rtd->card->dev, "Cannot allocate compressed ops\n"); | |
776 | ret = -ENOMEM; | |
777 | goto compr_err; | |
778 | } | |
2a99ef0f LG |
779 | |
780 | if (rtd->dai_link->dynamic) { | |
781 | snprintf(new_name, sizeof(new_name), "(%s)", | |
782 | rtd->dai_link->stream_name); | |
783 | ||
784 | ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num, | |
d3268a40 QY |
785 | rtd->dai_link->dpcm_playback, |
786 | rtd->dai_link->dpcm_capture, &be_pcm); | |
2a99ef0f LG |
787 | if (ret < 0) { |
788 | dev_err(rtd->card->dev, "ASoC: can't create compressed for %s\n", | |
789 | rtd->dai_link->name); | |
790 | goto compr_err; | |
791 | } | |
792 | ||
793 | rtd->pcm = be_pcm; | |
794 | rtd->fe_compr = 1; | |
d3268a40 QY |
795 | if (rtd->dai_link->dpcm_playback) |
796 | be_pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd; | |
797 | else if (rtd->dai_link->dpcm_capture) | |
798 | be_pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->private_data = rtd; | |
2a99ef0f LG |
799 | memcpy(compr->ops, &soc_compr_dyn_ops, sizeof(soc_compr_dyn_ops)); |
800 | } else | |
801 | memcpy(compr->ops, &soc_compr_ops, sizeof(soc_compr_ops)); | |
1f88eb0f CK |
802 | |
803 | /* Add copy callback for not memory mapped DSPs */ | |
804 | if (platform->driver->compr_ops && platform->driver->compr_ops->copy) | |
805 | compr->ops->copy = soc_compr_copy; | |
806 | ||
1245b700 | 807 | mutex_init(&compr->lock); |
e5241a8c RF |
808 | |
809 | snprintf(new_name, sizeof(new_name), "%s %s-%d", | |
810 | rtd->dai_link->stream_name, | |
811 | rtd->codec_dai->name, num); | |
812 | ||
813 | ret = snd_compress_new(rtd->card->snd_card, num, direction, | |
814 | new_name, compr); | |
1245b700 NK |
815 | if (ret < 0) { |
816 | pr_err("compress asoc: can't create compress for codec %s\n", | |
f4333203 | 817 | codec->component.name); |
1f88eb0f | 818 | goto compr_err; |
1245b700 NK |
819 | } |
820 | ||
202c8f70 CK |
821 | /* DAPM dai link stream work */ |
822 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
823 | ||
1245b700 NK |
824 | rtd->compr = compr; |
825 | compr->private_data = rtd; | |
826 | ||
827 | printk(KERN_INFO "compress asoc: %s <-> %s mapping ok\n", codec_dai->name, | |
828 | cpu_dai->name); | |
829 | return ret; | |
1f88eb0f CK |
830 | |
831 | compr_err: | |
832 | kfree(compr); | |
833 | return ret; | |
1245b700 | 834 | } |
6f0c4226 | 835 | EXPORT_SYMBOL_GPL(snd_soc_new_compress); |