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Commit | Line | Data |
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ddee627c LG |
1 | /* |
2 | * soc-pcm.c -- ALSA SoC PCM | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
5 | * Copyright 2005 Openedhand Ltd. | |
6 | * Copyright (C) 2010 Slimlogic Ltd. | |
7 | * Copyright (C) 2010 Texas Instruments Inc. | |
8 | * | |
9 | * Authors: Liam Girdwood <lrg@ti.com> | |
10 | * Mark Brown <broonie@opensource.wolfsonmicro.com> | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify it | |
13 | * under the terms of the GNU General Public License as published by the | |
14 | * Free Software Foundation; either version 2 of the License, or (at your | |
15 | * option) any later version. | |
16 | * | |
17 | */ | |
18 | ||
19 | #include <linux/kernel.h> | |
20 | #include <linux/init.h> | |
21 | #include <linux/delay.h> | |
988e8cc4 | 22 | #include <linux/pinctrl/consumer.h> |
d6652ef8 | 23 | #include <linux/pm_runtime.h> |
ddee627c LG |
24 | #include <linux/slab.h> |
25 | #include <linux/workqueue.h> | |
01d7584c | 26 | #include <linux/export.h> |
f86dcef8 | 27 | #include <linux/debugfs.h> |
ddee627c LG |
28 | #include <sound/core.h> |
29 | #include <sound/pcm.h> | |
30 | #include <sound/pcm_params.h> | |
31 | #include <sound/soc.h> | |
01d7584c | 32 | #include <sound/soc-dpcm.h> |
ddee627c LG |
33 | #include <sound/initval.h> |
34 | ||
01d7584c LG |
35 | #define DPCM_MAX_BE_USERS 8 |
36 | ||
24894b76 LPC |
37 | /** |
38 | * snd_soc_runtime_activate() - Increment active count for PCM runtime components | |
39 | * @rtd: ASoC PCM runtime that is activated | |
40 | * @stream: Direction of the PCM stream | |
41 | * | |
42 | * Increments the active count for all the DAIs and components attached to a PCM | |
43 | * runtime. Should typically be called when a stream is opened. | |
44 | * | |
45 | * Must be called with the rtd->pcm_mutex being held | |
46 | */ | |
47 | void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream) | |
48 | { | |
49 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
50 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
51 | ||
52 | lockdep_assert_held(&rtd->pcm_mutex); | |
53 | ||
54 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
55 | cpu_dai->playback_active++; | |
56 | codec_dai->playback_active++; | |
57 | } else { | |
58 | cpu_dai->capture_active++; | |
59 | codec_dai->capture_active++; | |
60 | } | |
61 | ||
62 | cpu_dai->active++; | |
63 | codec_dai->active++; | |
cdde4ccb LPC |
64 | cpu_dai->component->active++; |
65 | codec_dai->component->active++; | |
24894b76 LPC |
66 | } |
67 | ||
68 | /** | |
69 | * snd_soc_runtime_deactivate() - Decrement active count for PCM runtime components | |
70 | * @rtd: ASoC PCM runtime that is deactivated | |
71 | * @stream: Direction of the PCM stream | |
72 | * | |
73 | * Decrements the active count for all the DAIs and components attached to a PCM | |
74 | * runtime. Should typically be called when a stream is closed. | |
75 | * | |
76 | * Must be called with the rtd->pcm_mutex being held | |
77 | */ | |
78 | void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream) | |
79 | { | |
80 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
81 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
82 | ||
83 | lockdep_assert_held(&rtd->pcm_mutex); | |
84 | ||
85 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
86 | cpu_dai->playback_active--; | |
87 | codec_dai->playback_active--; | |
88 | } else { | |
89 | cpu_dai->capture_active--; | |
90 | codec_dai->capture_active--; | |
91 | } | |
92 | ||
93 | cpu_dai->active--; | |
94 | codec_dai->active--; | |
cdde4ccb LPC |
95 | cpu_dai->component->active--; |
96 | codec_dai->component->active--; | |
24894b76 LPC |
97 | } |
98 | ||
208a1589 LPC |
99 | /** |
100 | * snd_soc_runtime_ignore_pmdown_time() - Check whether to ignore the power down delay | |
101 | * @rtd: The ASoC PCM runtime that should be checked. | |
102 | * | |
103 | * This function checks whether the power down delay should be ignored for a | |
104 | * specific PCM runtime. Returns true if the delay is 0, if it the DAI link has | |
105 | * been configured to ignore the delay, or if none of the components benefits | |
106 | * from having the delay. | |
107 | */ | |
108 | bool snd_soc_runtime_ignore_pmdown_time(struct snd_soc_pcm_runtime *rtd) | |
109 | { | |
208a1589 LPC |
110 | if (!rtd->pmdown_time || rtd->dai_link->ignore_pmdown_time) |
111 | return true; | |
112 | ||
3d59400f LPC |
113 | return rtd->cpu_dai->component->ignore_pmdown_time && |
114 | rtd->codec_dai->component->ignore_pmdown_time; | |
208a1589 LPC |
115 | } |
116 | ||
90996f43 LPC |
117 | /** |
118 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
119 | * @substream: the pcm substream | |
120 | * @hw: the hardware parameters | |
121 | * | |
122 | * Sets the substream runtime hardware parameters. | |
123 | */ | |
124 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
125 | const struct snd_pcm_hardware *hw) | |
126 | { | |
127 | struct snd_pcm_runtime *runtime = substream->runtime; | |
128 | runtime->hw.info = hw->info; | |
129 | runtime->hw.formats = hw->formats; | |
130 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
131 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
132 | runtime->hw.periods_min = hw->periods_min; | |
133 | runtime->hw.periods_max = hw->periods_max; | |
134 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
135 | runtime->hw.fifo_size = hw->fifo_size; | |
136 | return 0; | |
137 | } | |
138 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
139 | ||
01d7584c | 140 | /* DPCM stream event, send event to FE and all active BEs. */ |
23607025 | 141 | int dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir, |
01d7584c LG |
142 | int event) |
143 | { | |
144 | struct snd_soc_dpcm *dpcm; | |
145 | ||
146 | list_for_each_entry(dpcm, &fe->dpcm[dir].be_clients, list_be) { | |
147 | ||
148 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
149 | ||
103d84a3 | 150 | dev_dbg(be->dev, "ASoC: BE %s event %d dir %d\n", |
01d7584c LG |
151 | be->dai_link->name, event, dir); |
152 | ||
153 | snd_soc_dapm_stream_event(be, dir, event); | |
154 | } | |
155 | ||
156 | snd_soc_dapm_stream_event(fe, dir, event); | |
157 | ||
158 | return 0; | |
159 | } | |
160 | ||
17841020 DA |
161 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream, |
162 | struct snd_soc_dai *soc_dai) | |
ddee627c LG |
163 | { |
164 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
ddee627c LG |
165 | int ret; |
166 | ||
3635bf09 NC |
167 | if (soc_dai->rate && (soc_dai->driver->symmetric_rates || |
168 | rtd->dai_link->symmetric_rates)) { | |
169 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %dHz rate\n", | |
170 | soc_dai->rate); | |
171 | ||
172 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
173 | SNDRV_PCM_HW_PARAM_RATE, | |
174 | soc_dai->rate, soc_dai->rate); | |
175 | if (ret < 0) { | |
176 | dev_err(soc_dai->dev, | |
177 | "ASoC: Unable to apply rate constraint: %d\n", | |
178 | ret); | |
179 | return ret; | |
180 | } | |
181 | } | |
ddee627c | 182 | |
3635bf09 NC |
183 | if (soc_dai->channels && (soc_dai->driver->symmetric_channels || |
184 | rtd->dai_link->symmetric_channels)) { | |
185 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %d channel(s)\n", | |
186 | soc_dai->channels); | |
ddee627c | 187 | |
3635bf09 NC |
188 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, |
189 | SNDRV_PCM_HW_PARAM_CHANNELS, | |
190 | soc_dai->channels, | |
191 | soc_dai->channels); | |
192 | if (ret < 0) { | |
193 | dev_err(soc_dai->dev, | |
194 | "ASoC: Unable to apply channel symmetry constraint: %d\n", | |
195 | ret); | |
196 | return ret; | |
197 | } | |
ddee627c LG |
198 | } |
199 | ||
3635bf09 NC |
200 | if (soc_dai->sample_bits && (soc_dai->driver->symmetric_samplebits || |
201 | rtd->dai_link->symmetric_samplebits)) { | |
202 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %d sample bits\n", | |
203 | soc_dai->sample_bits); | |
ddee627c | 204 | |
3635bf09 NC |
205 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, |
206 | SNDRV_PCM_HW_PARAM_SAMPLE_BITS, | |
207 | soc_dai->sample_bits, | |
208 | soc_dai->sample_bits); | |
209 | if (ret < 0) { | |
210 | dev_err(soc_dai->dev, | |
211 | "ASoC: Unable to apply sample bits symmetry constraint: %d\n", | |
212 | ret); | |
213 | return ret; | |
214 | } | |
ddee627c LG |
215 | } |
216 | ||
217 | return 0; | |
218 | } | |
219 | ||
3635bf09 NC |
220 | static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream, |
221 | struct snd_pcm_hw_params *params) | |
222 | { | |
223 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
224 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
225 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
226 | unsigned int rate, channels, sample_bits, symmetry; | |
227 | ||
228 | rate = params_rate(params); | |
229 | channels = params_channels(params); | |
230 | sample_bits = snd_pcm_format_physical_width(params_format(params)); | |
231 | ||
232 | /* reject unmatched parameters when applying symmetry */ | |
233 | symmetry = cpu_dai->driver->symmetric_rates || | |
234 | codec_dai->driver->symmetric_rates || | |
235 | rtd->dai_link->symmetric_rates; | |
236 | if (symmetry && cpu_dai->rate && cpu_dai->rate != rate) { | |
237 | dev_err(rtd->dev, "ASoC: unmatched rate symmetry: %d - %d\n", | |
238 | cpu_dai->rate, rate); | |
239 | return -EINVAL; | |
ddee627c LG |
240 | } |
241 | ||
3635bf09 NC |
242 | symmetry = cpu_dai->driver->symmetric_channels || |
243 | codec_dai->driver->symmetric_channels || | |
244 | rtd->dai_link->symmetric_channels; | |
245 | if (symmetry && cpu_dai->channels && cpu_dai->channels != channels) { | |
246 | dev_err(rtd->dev, "ASoC: unmatched channel symmetry: %d - %d\n", | |
247 | cpu_dai->channels, channels); | |
248 | return -EINVAL; | |
249 | } | |
ddee627c | 250 | |
3635bf09 NC |
251 | symmetry = cpu_dai->driver->symmetric_samplebits || |
252 | codec_dai->driver->symmetric_samplebits || | |
253 | rtd->dai_link->symmetric_samplebits; | |
254 | if (symmetry && cpu_dai->sample_bits && cpu_dai->sample_bits != sample_bits) { | |
255 | dev_err(rtd->dev, "ASoC: unmatched sample bits symmetry: %d - %d\n", | |
256 | cpu_dai->sample_bits, sample_bits); | |
257 | return -EINVAL; | |
ddee627c LG |
258 | } |
259 | ||
260 | return 0; | |
261 | } | |
262 | ||
62e5f676 LPC |
263 | static bool soc_pcm_has_symmetry(struct snd_pcm_substream *substream) |
264 | { | |
265 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
266 | struct snd_soc_dai_driver *cpu_driver = rtd->cpu_dai->driver; | |
267 | struct snd_soc_dai_driver *codec_driver = rtd->codec_dai->driver; | |
268 | struct snd_soc_dai_link *link = rtd->dai_link; | |
269 | ||
270 | return cpu_driver->symmetric_rates || codec_driver->symmetric_rates || | |
271 | link->symmetric_rates || cpu_driver->symmetric_channels || | |
272 | codec_driver->symmetric_channels || link->symmetric_channels || | |
273 | cpu_driver->symmetric_samplebits || | |
274 | codec_driver->symmetric_samplebits || | |
275 | link->symmetric_samplebits; | |
276 | } | |
277 | ||
58ba9b25 MB |
278 | /* |
279 | * List of sample sizes that might go over the bus for parameter | |
280 | * application. There ought to be a wildcard sample size for things | |
281 | * like the DAC/ADC resolution to use but there isn't right now. | |
282 | */ | |
283 | static int sample_sizes[] = { | |
88e33954 | 284 | 24, 32, |
58ba9b25 MB |
285 | }; |
286 | ||
287 | static void soc_pcm_apply_msb(struct snd_pcm_substream *substream, | |
288 | struct snd_soc_dai *dai) | |
289 | { | |
290 | int ret, i, bits; | |
291 | ||
292 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
293 | bits = dai->driver->playback.sig_bits; | |
294 | else | |
295 | bits = dai->driver->capture.sig_bits; | |
296 | ||
297 | if (!bits) | |
298 | return; | |
299 | ||
300 | for (i = 0; i < ARRAY_SIZE(sample_sizes); i++) { | |
278047fd MB |
301 | if (bits >= sample_sizes[i]) |
302 | continue; | |
303 | ||
304 | ret = snd_pcm_hw_constraint_msbits(substream->runtime, 0, | |
305 | sample_sizes[i], bits); | |
58ba9b25 MB |
306 | if (ret != 0) |
307 | dev_warn(dai->dev, | |
103d84a3 | 308 | "ASoC: Failed to set MSB %d/%d: %d\n", |
58ba9b25 MB |
309 | bits, sample_sizes[i], ret); |
310 | } | |
311 | } | |
312 | ||
78e45c99 | 313 | static void soc_pcm_init_runtime_hw(struct snd_pcm_runtime *runtime, |
bd477c31 LPC |
314 | struct snd_soc_pcm_stream *codec_stream, |
315 | struct snd_soc_pcm_stream *cpu_stream) | |
316 | { | |
78e45c99 LPC |
317 | struct snd_pcm_hardware *hw = &runtime->hw; |
318 | ||
bd477c31 LPC |
319 | hw->channels_min = max(codec_stream->channels_min, |
320 | cpu_stream->channels_min); | |
321 | hw->channels_max = min(codec_stream->channels_max, | |
322 | cpu_stream->channels_max); | |
16d7ea91 LPC |
323 | if (hw->formats) |
324 | hw->formats &= codec_stream->formats & cpu_stream->formats; | |
325 | else | |
326 | hw->formats = codec_stream->formats & cpu_stream->formats; | |
55dcdb50 LPC |
327 | hw->rates = snd_pcm_rate_mask_intersect(codec_stream->rates, |
328 | cpu_stream->rates); | |
78e45c99 | 329 | |
817873f4 LPC |
330 | hw->rate_min = 0; |
331 | hw->rate_max = UINT_MAX; | |
78e45c99 LPC |
332 | |
333 | snd_pcm_limit_hw_rates(runtime); | |
334 | ||
335 | hw->rate_min = max(hw->rate_min, cpu_stream->rate_min); | |
336 | hw->rate_min = max(hw->rate_min, codec_stream->rate_min); | |
337 | hw->rate_max = min_not_zero(hw->rate_max, cpu_stream->rate_max); | |
338 | hw->rate_max = min_not_zero(hw->rate_max, codec_stream->rate_max); | |
bd477c31 LPC |
339 | } |
340 | ||
ddee627c LG |
341 | /* |
342 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
343 | * then initialized and any private data can be allocated. This also calls | |
344 | * startup for the cpu DAI, platform, machine and codec DAI. | |
345 | */ | |
346 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
347 | { | |
348 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
349 | struct snd_pcm_runtime *runtime = substream->runtime; | |
350 | struct snd_soc_platform *platform = rtd->platform; | |
351 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
352 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
353 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
354 | struct snd_soc_dai_driver *codec_dai_drv = codec_dai->driver; | |
355 | int ret = 0; | |
356 | ||
988e8cc4 NC |
357 | pinctrl_pm_select_default_state(cpu_dai->dev); |
358 | pinctrl_pm_select_default_state(codec_dai->dev); | |
d6652ef8 MB |
359 | pm_runtime_get_sync(cpu_dai->dev); |
360 | pm_runtime_get_sync(codec_dai->dev); | |
361 | pm_runtime_get_sync(platform->dev); | |
362 | ||
b8c0dab9 | 363 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c LG |
364 | |
365 | /* startup the audio subsystem */ | |
c5914b0a | 366 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->startup) { |
ddee627c LG |
367 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); |
368 | if (ret < 0) { | |
103d84a3 LG |
369 | dev_err(cpu_dai->dev, "ASoC: can't open interface" |
370 | " %s: %d\n", cpu_dai->name, ret); | |
ddee627c LG |
371 | goto out; |
372 | } | |
373 | } | |
374 | ||
375 | if (platform->driver->ops && platform->driver->ops->open) { | |
376 | ret = platform->driver->ops->open(substream); | |
377 | if (ret < 0) { | |
103d84a3 LG |
378 | dev_err(platform->dev, "ASoC: can't open platform" |
379 | " %s: %d\n", platform->name, ret); | |
ddee627c LG |
380 | goto platform_err; |
381 | } | |
382 | } | |
383 | ||
c5914b0a | 384 | if (codec_dai->driver->ops && codec_dai->driver->ops->startup) { |
ddee627c LG |
385 | ret = codec_dai->driver->ops->startup(substream, codec_dai); |
386 | if (ret < 0) { | |
103d84a3 LG |
387 | dev_err(codec_dai->dev, "ASoC: can't open codec" |
388 | " %s: %d\n", codec_dai->name, ret); | |
ddee627c LG |
389 | goto codec_dai_err; |
390 | } | |
391 | } | |
392 | ||
393 | if (rtd->dai_link->ops && rtd->dai_link->ops->startup) { | |
394 | ret = rtd->dai_link->ops->startup(substream); | |
395 | if (ret < 0) { | |
103d84a3 | 396 | pr_err("ASoC: %s startup failed: %d\n", |
25bfe662 | 397 | rtd->dai_link->name, ret); |
ddee627c LG |
398 | goto machine_err; |
399 | } | |
400 | } | |
401 | ||
01d7584c LG |
402 | /* Dynamic PCM DAI links compat checks use dynamic capabilities */ |
403 | if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) | |
404 | goto dynamic; | |
405 | ||
ddee627c LG |
406 | /* Check that the codec and cpu DAIs are compatible */ |
407 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
78e45c99 | 408 | soc_pcm_init_runtime_hw(runtime, &codec_dai_drv->playback, |
bd477c31 | 409 | &cpu_dai_drv->playback); |
ddee627c | 410 | } else { |
78e45c99 | 411 | soc_pcm_init_runtime_hw(runtime, &codec_dai_drv->capture, |
bd477c31 | 412 | &cpu_dai_drv->capture); |
ddee627c LG |
413 | } |
414 | ||
62e5f676 LPC |
415 | if (soc_pcm_has_symmetry(substream)) |
416 | runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
417 | ||
ddee627c | 418 | ret = -EINVAL; |
ddee627c | 419 | if (!runtime->hw.rates) { |
103d84a3 | 420 | printk(KERN_ERR "ASoC: %s <-> %s No matching rates\n", |
ddee627c LG |
421 | codec_dai->name, cpu_dai->name); |
422 | goto config_err; | |
423 | } | |
424 | if (!runtime->hw.formats) { | |
103d84a3 | 425 | printk(KERN_ERR "ASoC: %s <-> %s No matching formats\n", |
ddee627c LG |
426 | codec_dai->name, cpu_dai->name); |
427 | goto config_err; | |
428 | } | |
429 | if (!runtime->hw.channels_min || !runtime->hw.channels_max || | |
430 | runtime->hw.channels_min > runtime->hw.channels_max) { | |
103d84a3 | 431 | printk(KERN_ERR "ASoC: %s <-> %s No matching channels\n", |
ddee627c LG |
432 | codec_dai->name, cpu_dai->name); |
433 | goto config_err; | |
434 | } | |
435 | ||
58ba9b25 MB |
436 | soc_pcm_apply_msb(substream, codec_dai); |
437 | soc_pcm_apply_msb(substream, cpu_dai); | |
438 | ||
ddee627c | 439 | /* Symmetry only applies if we've already got an active stream. */ |
17841020 DA |
440 | if (cpu_dai->active) { |
441 | ret = soc_pcm_apply_symmetry(substream, cpu_dai); | |
442 | if (ret != 0) | |
443 | goto config_err; | |
444 | } | |
445 | ||
446 | if (codec_dai->active) { | |
447 | ret = soc_pcm_apply_symmetry(substream, codec_dai); | |
ddee627c LG |
448 | if (ret != 0) |
449 | goto config_err; | |
450 | } | |
451 | ||
103d84a3 | 452 | pr_debug("ASoC: %s <-> %s info:\n", |
ddee627c | 453 | codec_dai->name, cpu_dai->name); |
103d84a3 LG |
454 | pr_debug("ASoC: rate mask 0x%x\n", runtime->hw.rates); |
455 | pr_debug("ASoC: min ch %d max ch %d\n", runtime->hw.channels_min, | |
ddee627c | 456 | runtime->hw.channels_max); |
103d84a3 | 457 | pr_debug("ASoC: min rate %d max rate %d\n", runtime->hw.rate_min, |
ddee627c LG |
458 | runtime->hw.rate_max); |
459 | ||
01d7584c | 460 | dynamic: |
24894b76 LPC |
461 | |
462 | snd_soc_runtime_activate(rtd, substream->stream); | |
463 | ||
b8c0dab9 | 464 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
465 | return 0; |
466 | ||
467 | config_err: | |
468 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) | |
469 | rtd->dai_link->ops->shutdown(substream); | |
470 | ||
471 | machine_err: | |
472 | if (codec_dai->driver->ops->shutdown) | |
473 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
474 | ||
475 | codec_dai_err: | |
476 | if (platform->driver->ops && platform->driver->ops->close) | |
477 | platform->driver->ops->close(substream); | |
478 | ||
479 | platform_err: | |
480 | if (cpu_dai->driver->ops->shutdown) | |
481 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
482 | out: | |
b8c0dab9 | 483 | mutex_unlock(&rtd->pcm_mutex); |
d6652ef8 MB |
484 | |
485 | pm_runtime_put(platform->dev); | |
486 | pm_runtime_put(codec_dai->dev); | |
487 | pm_runtime_put(cpu_dai->dev); | |
988e8cc4 NC |
488 | if (!codec_dai->active) |
489 | pinctrl_pm_select_sleep_state(codec_dai->dev); | |
490 | if (!cpu_dai->active) | |
491 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
d6652ef8 | 492 | |
ddee627c LG |
493 | return ret; |
494 | } | |
495 | ||
496 | /* | |
497 | * Power down the audio subsystem pmdown_time msecs after close is called. | |
498 | * This is to ensure there are no pops or clicks in between any music tracks | |
499 | * due to DAPM power cycling. | |
500 | */ | |
501 | static void close_delayed_work(struct work_struct *work) | |
502 | { | |
503 | struct snd_soc_pcm_runtime *rtd = | |
504 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
505 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
506 | ||
b8c0dab9 | 507 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 508 | |
103d84a3 | 509 | dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n", |
ddee627c LG |
510 | codec_dai->driver->playback.stream_name, |
511 | codec_dai->playback_active ? "active" : "inactive", | |
9bffb1fb | 512 | rtd->pop_wait ? "yes" : "no"); |
ddee627c LG |
513 | |
514 | /* are we waiting on this codec DAI stream */ | |
9bffb1fb MLC |
515 | if (rtd->pop_wait == 1) { |
516 | rtd->pop_wait = 0; | |
7bd3a6f3 | 517 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK, |
d9b0951b | 518 | SND_SOC_DAPM_STREAM_STOP); |
ddee627c LG |
519 | } |
520 | ||
b8c0dab9 | 521 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
522 | } |
523 | ||
524 | /* | |
525 | * Called by ALSA when a PCM substream is closed. Private data can be | |
526 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
527 | * shutdown. | |
528 | */ | |
91d5e6b4 | 529 | static int soc_pcm_close(struct snd_pcm_substream *substream) |
ddee627c LG |
530 | { |
531 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
532 | struct snd_soc_platform *platform = rtd->platform; | |
533 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
534 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
ddee627c | 535 | |
b8c0dab9 | 536 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 537 | |
24894b76 | 538 | snd_soc_runtime_deactivate(rtd, substream->stream); |
ddee627c | 539 | |
17841020 DA |
540 | /* clear the corresponding DAIs rate when inactive */ |
541 | if (!cpu_dai->active) | |
542 | cpu_dai->rate = 0; | |
543 | ||
544 | if (!codec_dai->active) | |
545 | codec_dai->rate = 0; | |
25b76791 | 546 | |
ddee627c LG |
547 | if (cpu_dai->driver->ops->shutdown) |
548 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
549 | ||
550 | if (codec_dai->driver->ops->shutdown) | |
551 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
552 | ||
553 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) | |
554 | rtd->dai_link->ops->shutdown(substream); | |
555 | ||
556 | if (platform->driver->ops && platform->driver->ops->close) | |
557 | platform->driver->ops->close(substream); | |
ddee627c LG |
558 | |
559 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
208a1589 | 560 | if (snd_soc_runtime_ignore_pmdown_time(rtd)) { |
1d69c5c5 PU |
561 | /* powered down playback stream now */ |
562 | snd_soc_dapm_stream_event(rtd, | |
7bd3a6f3 | 563 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 564 | SND_SOC_DAPM_STREAM_STOP); |
1d69c5c5 PU |
565 | } else { |
566 | /* start delayed pop wq here for playback streams */ | |
9bffb1fb | 567 | rtd->pop_wait = 1; |
d4e1a73a MB |
568 | queue_delayed_work(system_power_efficient_wq, |
569 | &rtd->delayed_work, | |
570 | msecs_to_jiffies(rtd->pmdown_time)); | |
1d69c5c5 | 571 | } |
ddee627c LG |
572 | } else { |
573 | /* capture streams can be powered down now */ | |
7bd3a6f3 | 574 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_CAPTURE, |
d9b0951b | 575 | SND_SOC_DAPM_STREAM_STOP); |
ddee627c LG |
576 | } |
577 | ||
b8c0dab9 | 578 | mutex_unlock(&rtd->pcm_mutex); |
d6652ef8 MB |
579 | |
580 | pm_runtime_put(platform->dev); | |
581 | pm_runtime_put(codec_dai->dev); | |
582 | pm_runtime_put(cpu_dai->dev); | |
988e8cc4 NC |
583 | if (!codec_dai->active) |
584 | pinctrl_pm_select_sleep_state(codec_dai->dev); | |
585 | if (!cpu_dai->active) | |
586 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
d6652ef8 | 587 | |
ddee627c LG |
588 | return 0; |
589 | } | |
590 | ||
591 | /* | |
592 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
593 | * rate, etc. This function is non atomic and can be called multiple times, | |
594 | * it can refer to the runtime info. | |
595 | */ | |
596 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
597 | { | |
598 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
599 | struct snd_soc_platform *platform = rtd->platform; | |
600 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
601 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
602 | int ret = 0; | |
603 | ||
b8c0dab9 | 604 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c LG |
605 | |
606 | if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) { | |
607 | ret = rtd->dai_link->ops->prepare(substream); | |
608 | if (ret < 0) { | |
103d84a3 LG |
609 | dev_err(rtd->card->dev, "ASoC: machine prepare error:" |
610 | " %d\n", ret); | |
ddee627c LG |
611 | goto out; |
612 | } | |
613 | } | |
614 | ||
615 | if (platform->driver->ops && platform->driver->ops->prepare) { | |
616 | ret = platform->driver->ops->prepare(substream); | |
617 | if (ret < 0) { | |
103d84a3 LG |
618 | dev_err(platform->dev, "ASoC: platform prepare error:" |
619 | " %d\n", ret); | |
ddee627c LG |
620 | goto out; |
621 | } | |
622 | } | |
623 | ||
c5914b0a | 624 | if (codec_dai->driver->ops && codec_dai->driver->ops->prepare) { |
ddee627c LG |
625 | ret = codec_dai->driver->ops->prepare(substream, codec_dai); |
626 | if (ret < 0) { | |
103d84a3 | 627 | dev_err(codec_dai->dev, "ASoC: DAI prepare error: %d\n", |
25bfe662 | 628 | ret); |
ddee627c LG |
629 | goto out; |
630 | } | |
631 | } | |
632 | ||
c5914b0a | 633 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->prepare) { |
ddee627c LG |
634 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); |
635 | if (ret < 0) { | |
103d84a3 | 636 | dev_err(cpu_dai->dev, "ASoC: DAI prepare error: %d\n", |
25bfe662 | 637 | ret); |
ddee627c LG |
638 | goto out; |
639 | } | |
640 | } | |
641 | ||
642 | /* cancel any delayed stream shutdown that is pending */ | |
643 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
9bffb1fb MLC |
644 | rtd->pop_wait) { |
645 | rtd->pop_wait = 0; | |
ddee627c LG |
646 | cancel_delayed_work(&rtd->delayed_work); |
647 | } | |
648 | ||
d9b0951b LG |
649 | snd_soc_dapm_stream_event(rtd, substream->stream, |
650 | SND_SOC_DAPM_STREAM_START); | |
ddee627c | 651 | |
da18396f | 652 | snd_soc_dai_digital_mute(codec_dai, 0, substream->stream); |
ddee627c LG |
653 | |
654 | out: | |
b8c0dab9 | 655 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
656 | return ret; |
657 | } | |
658 | ||
659 | /* | |
660 | * Called by ALSA when the hardware params are set by application. This | |
661 | * function can also be called multiple times and can allocate buffers | |
662 | * (using snd_pcm_lib_* ). It's non-atomic. | |
663 | */ | |
664 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
665 | struct snd_pcm_hw_params *params) | |
666 | { | |
667 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
668 | struct snd_soc_platform *platform = rtd->platform; | |
669 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
670 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
671 | int ret = 0; | |
672 | ||
b8c0dab9 | 673 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 674 | |
3635bf09 NC |
675 | ret = soc_pcm_params_symmetry(substream, params); |
676 | if (ret) | |
677 | goto out; | |
678 | ||
ddee627c LG |
679 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) { |
680 | ret = rtd->dai_link->ops->hw_params(substream, params); | |
681 | if (ret < 0) { | |
103d84a3 LG |
682 | dev_err(rtd->card->dev, "ASoC: machine hw_params" |
683 | " failed: %d\n", ret); | |
ddee627c LG |
684 | goto out; |
685 | } | |
686 | } | |
687 | ||
c5914b0a | 688 | if (codec_dai->driver->ops && codec_dai->driver->ops->hw_params) { |
ddee627c LG |
689 | ret = codec_dai->driver->ops->hw_params(substream, params, codec_dai); |
690 | if (ret < 0) { | |
103d84a3 LG |
691 | dev_err(codec_dai->dev, "ASoC: can't set %s hw params:" |
692 | " %d\n", codec_dai->name, ret); | |
ddee627c LG |
693 | goto codec_err; |
694 | } | |
695 | } | |
696 | ||
c5914b0a | 697 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->hw_params) { |
ddee627c LG |
698 | ret = cpu_dai->driver->ops->hw_params(substream, params, cpu_dai); |
699 | if (ret < 0) { | |
103d84a3 | 700 | dev_err(cpu_dai->dev, "ASoC: %s hw params failed: %d\n", |
25bfe662 | 701 | cpu_dai->name, ret); |
ddee627c LG |
702 | goto interface_err; |
703 | } | |
704 | } | |
705 | ||
706 | if (platform->driver->ops && platform->driver->ops->hw_params) { | |
707 | ret = platform->driver->ops->hw_params(substream, params); | |
708 | if (ret < 0) { | |
103d84a3 | 709 | dev_err(platform->dev, "ASoC: %s hw params failed: %d\n", |
25bfe662 | 710 | platform->name, ret); |
ddee627c LG |
711 | goto platform_err; |
712 | } | |
713 | } | |
714 | ||
3635bf09 | 715 | /* store the parameters for each DAIs */ |
17841020 | 716 | cpu_dai->rate = params_rate(params); |
3635bf09 NC |
717 | cpu_dai->channels = params_channels(params); |
718 | cpu_dai->sample_bits = | |
719 | snd_pcm_format_physical_width(params_format(params)); | |
720 | ||
17841020 | 721 | codec_dai->rate = params_rate(params); |
3635bf09 NC |
722 | codec_dai->channels = params_channels(params); |
723 | codec_dai->sample_bits = | |
724 | snd_pcm_format_physical_width(params_format(params)); | |
ddee627c LG |
725 | |
726 | out: | |
b8c0dab9 | 727 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
728 | return ret; |
729 | ||
730 | platform_err: | |
c5914b0a | 731 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->hw_free) |
ddee627c LG |
732 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); |
733 | ||
734 | interface_err: | |
c5914b0a | 735 | if (codec_dai->driver->ops && codec_dai->driver->ops->hw_free) |
ddee627c LG |
736 | codec_dai->driver->ops->hw_free(substream, codec_dai); |
737 | ||
738 | codec_err: | |
739 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) | |
740 | rtd->dai_link->ops->hw_free(substream); | |
741 | ||
b8c0dab9 | 742 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
743 | return ret; |
744 | } | |
745 | ||
746 | /* | |
747 | * Frees resources allocated by hw_params, can be called multiple times | |
748 | */ | |
749 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
750 | { | |
751 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
752 | struct snd_soc_platform *platform = rtd->platform; | |
753 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
754 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
7f62b6ee | 755 | bool playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; |
ddee627c | 756 | |
b8c0dab9 | 757 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 758 | |
d3383420 NC |
759 | /* clear the corresponding DAIs parameters when going to be inactive */ |
760 | if (cpu_dai->active == 1) { | |
761 | cpu_dai->rate = 0; | |
762 | cpu_dai->channels = 0; | |
763 | cpu_dai->sample_bits = 0; | |
764 | } | |
765 | ||
766 | if (codec_dai->active == 1) { | |
767 | codec_dai->rate = 0; | |
768 | codec_dai->channels = 0; | |
769 | codec_dai->sample_bits = 0; | |
770 | } | |
771 | ||
ddee627c | 772 | /* apply codec digital mute */ |
7f62b6ee NC |
773 | if ((playback && codec_dai->playback_active == 1) || |
774 | (!playback && codec_dai->capture_active == 1)) | |
da18396f | 775 | snd_soc_dai_digital_mute(codec_dai, 1, substream->stream); |
ddee627c LG |
776 | |
777 | /* free any machine hw params */ | |
778 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) | |
779 | rtd->dai_link->ops->hw_free(substream); | |
780 | ||
781 | /* free any DMA resources */ | |
782 | if (platform->driver->ops && platform->driver->ops->hw_free) | |
783 | platform->driver->ops->hw_free(substream); | |
784 | ||
785 | /* now free hw params for the DAIs */ | |
c5914b0a | 786 | if (codec_dai->driver->ops && codec_dai->driver->ops->hw_free) |
ddee627c LG |
787 | codec_dai->driver->ops->hw_free(substream, codec_dai); |
788 | ||
c5914b0a | 789 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->hw_free) |
ddee627c LG |
790 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); |
791 | ||
b8c0dab9 | 792 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
793 | return 0; |
794 | } | |
795 | ||
796 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
797 | { | |
798 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
799 | struct snd_soc_platform *platform = rtd->platform; | |
800 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
801 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
802 | int ret; | |
803 | ||
c5914b0a | 804 | if (codec_dai->driver->ops && codec_dai->driver->ops->trigger) { |
ddee627c LG |
805 | ret = codec_dai->driver->ops->trigger(substream, cmd, codec_dai); |
806 | if (ret < 0) | |
807 | return ret; | |
808 | } | |
809 | ||
810 | if (platform->driver->ops && platform->driver->ops->trigger) { | |
811 | ret = platform->driver->ops->trigger(substream, cmd); | |
812 | if (ret < 0) | |
813 | return ret; | |
814 | } | |
815 | ||
c5914b0a | 816 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->trigger) { |
ddee627c LG |
817 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); |
818 | if (ret < 0) | |
819 | return ret; | |
820 | } | |
4792b0db JN |
821 | |
822 | if (rtd->dai_link->ops && rtd->dai_link->ops->trigger) { | |
823 | ret = rtd->dai_link->ops->trigger(substream, cmd); | |
824 | if (ret < 0) | |
825 | return ret; | |
826 | } | |
827 | ||
ddee627c LG |
828 | return 0; |
829 | } | |
830 | ||
45c0a188 MB |
831 | static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream, |
832 | int cmd) | |
07bf84aa LG |
833 | { |
834 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
835 | struct snd_soc_platform *platform = rtd->platform; | |
836 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
837 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
838 | int ret; | |
839 | ||
c5914b0a MB |
840 | if (codec_dai->driver->ops && |
841 | codec_dai->driver->ops->bespoke_trigger) { | |
07bf84aa LG |
842 | ret = codec_dai->driver->ops->bespoke_trigger(substream, cmd, codec_dai); |
843 | if (ret < 0) | |
844 | return ret; | |
845 | } | |
846 | ||
dcf0fa27 | 847 | if (platform->driver->bespoke_trigger) { |
07bf84aa LG |
848 | ret = platform->driver->bespoke_trigger(substream, cmd); |
849 | if (ret < 0) | |
850 | return ret; | |
851 | } | |
852 | ||
c5914b0a | 853 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->bespoke_trigger) { |
07bf84aa LG |
854 | ret = cpu_dai->driver->ops->bespoke_trigger(substream, cmd, cpu_dai); |
855 | if (ret < 0) | |
856 | return ret; | |
857 | } | |
858 | return 0; | |
859 | } | |
ddee627c LG |
860 | /* |
861 | * soc level wrapper for pointer callback | |
862 | * If cpu_dai, codec_dai, platform driver has the delay callback, than | |
863 | * the runtime->delay will be updated accordingly. | |
864 | */ | |
865 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
866 | { | |
867 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
868 | struct snd_soc_platform *platform = rtd->platform; | |
869 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
870 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
871 | struct snd_pcm_runtime *runtime = substream->runtime; | |
872 | snd_pcm_uframes_t offset = 0; | |
873 | snd_pcm_sframes_t delay = 0; | |
874 | ||
875 | if (platform->driver->ops && platform->driver->ops->pointer) | |
876 | offset = platform->driver->ops->pointer(substream); | |
877 | ||
c5914b0a | 878 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->delay) |
ddee627c LG |
879 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); |
880 | ||
c5914b0a | 881 | if (codec_dai->driver->ops && codec_dai->driver->ops->delay) |
ddee627c LG |
882 | delay += codec_dai->driver->ops->delay(substream, codec_dai); |
883 | ||
884 | if (platform->driver->delay) | |
885 | delay += platform->driver->delay(substream, codec_dai); | |
886 | ||
887 | runtime->delay = delay; | |
888 | ||
889 | return offset; | |
890 | } | |
891 | ||
01d7584c LG |
892 | /* connect a FE and BE */ |
893 | static int dpcm_be_connect(struct snd_soc_pcm_runtime *fe, | |
894 | struct snd_soc_pcm_runtime *be, int stream) | |
895 | { | |
896 | struct snd_soc_dpcm *dpcm; | |
897 | ||
898 | /* only add new dpcms */ | |
899 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
900 | if (dpcm->be == be && dpcm->fe == fe) | |
901 | return 0; | |
902 | } | |
903 | ||
904 | dpcm = kzalloc(sizeof(struct snd_soc_dpcm), GFP_KERNEL); | |
905 | if (!dpcm) | |
906 | return -ENOMEM; | |
907 | ||
908 | dpcm->be = be; | |
909 | dpcm->fe = fe; | |
910 | be->dpcm[stream].runtime = fe->dpcm[stream].runtime; | |
911 | dpcm->state = SND_SOC_DPCM_LINK_STATE_NEW; | |
912 | list_add(&dpcm->list_be, &fe->dpcm[stream].be_clients); | |
913 | list_add(&dpcm->list_fe, &be->dpcm[stream].fe_clients); | |
914 | ||
7cc302d2 | 915 | dev_dbg(fe->dev, "connected new DPCM %s path %s %s %s\n", |
01d7584c LG |
916 | stream ? "capture" : "playback", fe->dai_link->name, |
917 | stream ? "<-" : "->", be->dai_link->name); | |
918 | ||
f86dcef8 LG |
919 | #ifdef CONFIG_DEBUG_FS |
920 | dpcm->debugfs_state = debugfs_create_u32(be->dai_link->name, 0644, | |
921 | fe->debugfs_dpcm_root, &dpcm->state); | |
922 | #endif | |
01d7584c LG |
923 | return 1; |
924 | } | |
925 | ||
926 | /* reparent a BE onto another FE */ | |
927 | static void dpcm_be_reparent(struct snd_soc_pcm_runtime *fe, | |
928 | struct snd_soc_pcm_runtime *be, int stream) | |
929 | { | |
930 | struct snd_soc_dpcm *dpcm; | |
931 | struct snd_pcm_substream *fe_substream, *be_substream; | |
932 | ||
933 | /* reparent if BE is connected to other FEs */ | |
934 | if (!be->dpcm[stream].users) | |
935 | return; | |
936 | ||
937 | be_substream = snd_soc_dpcm_get_substream(be, stream); | |
938 | ||
939 | list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { | |
940 | if (dpcm->fe == fe) | |
941 | continue; | |
942 | ||
7cc302d2 | 943 | dev_dbg(fe->dev, "reparent %s path %s %s %s\n", |
01d7584c LG |
944 | stream ? "capture" : "playback", |
945 | dpcm->fe->dai_link->name, | |
946 | stream ? "<-" : "->", dpcm->be->dai_link->name); | |
947 | ||
948 | fe_substream = snd_soc_dpcm_get_substream(dpcm->fe, stream); | |
949 | be_substream->runtime = fe_substream->runtime; | |
950 | break; | |
951 | } | |
952 | } | |
953 | ||
954 | /* disconnect a BE and FE */ | |
23607025 | 955 | void dpcm_be_disconnect(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
956 | { |
957 | struct snd_soc_dpcm *dpcm, *d; | |
958 | ||
959 | list_for_each_entry_safe(dpcm, d, &fe->dpcm[stream].be_clients, list_be) { | |
103d84a3 | 960 | dev_dbg(fe->dev, "ASoC: BE %s disconnect check for %s\n", |
01d7584c LG |
961 | stream ? "capture" : "playback", |
962 | dpcm->be->dai_link->name); | |
963 | ||
964 | if (dpcm->state != SND_SOC_DPCM_LINK_STATE_FREE) | |
965 | continue; | |
966 | ||
7cc302d2 | 967 | dev_dbg(fe->dev, "freed DSP %s path %s %s %s\n", |
01d7584c LG |
968 | stream ? "capture" : "playback", fe->dai_link->name, |
969 | stream ? "<-" : "->", dpcm->be->dai_link->name); | |
970 | ||
971 | /* BEs still alive need new FE */ | |
972 | dpcm_be_reparent(fe, dpcm->be, stream); | |
973 | ||
f86dcef8 LG |
974 | #ifdef CONFIG_DEBUG_FS |
975 | debugfs_remove(dpcm->debugfs_state); | |
976 | #endif | |
01d7584c LG |
977 | list_del(&dpcm->list_be); |
978 | list_del(&dpcm->list_fe); | |
979 | kfree(dpcm); | |
980 | } | |
981 | } | |
982 | ||
983 | /* get BE for DAI widget and stream */ | |
984 | static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card, | |
985 | struct snd_soc_dapm_widget *widget, int stream) | |
986 | { | |
987 | struct snd_soc_pcm_runtime *be; | |
988 | int i; | |
989 | ||
990 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
991 | for (i = 0; i < card->num_links; i++) { | |
992 | be = &card->rtd[i]; | |
993 | ||
35ea0655 LG |
994 | if (!be->dai_link->no_pcm) |
995 | continue; | |
996 | ||
01d7584c LG |
997 | if (be->cpu_dai->playback_widget == widget || |
998 | be->codec_dai->playback_widget == widget) | |
999 | return be; | |
1000 | } | |
1001 | } else { | |
1002 | ||
1003 | for (i = 0; i < card->num_links; i++) { | |
1004 | be = &card->rtd[i]; | |
1005 | ||
35ea0655 LG |
1006 | if (!be->dai_link->no_pcm) |
1007 | continue; | |
1008 | ||
01d7584c LG |
1009 | if (be->cpu_dai->capture_widget == widget || |
1010 | be->codec_dai->capture_widget == widget) | |
1011 | return be; | |
1012 | } | |
1013 | } | |
1014 | ||
103d84a3 | 1015 | dev_err(card->dev, "ASoC: can't get %s BE for %s\n", |
01d7584c LG |
1016 | stream ? "capture" : "playback", widget->name); |
1017 | return NULL; | |
1018 | } | |
1019 | ||
1020 | static inline struct snd_soc_dapm_widget * | |
37018610 | 1021 | dai_get_widget(struct snd_soc_dai *dai, int stream) |
01d7584c LG |
1022 | { |
1023 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
37018610 | 1024 | return dai->playback_widget; |
01d7584c | 1025 | else |
37018610 | 1026 | return dai->capture_widget; |
01d7584c LG |
1027 | } |
1028 | ||
1029 | static int widget_in_list(struct snd_soc_dapm_widget_list *list, | |
1030 | struct snd_soc_dapm_widget *widget) | |
1031 | { | |
1032 | int i; | |
1033 | ||
1034 | for (i = 0; i < list->num_widgets; i++) { | |
1035 | if (widget == list->widgets[i]) | |
1036 | return 1; | |
1037 | } | |
1038 | ||
1039 | return 0; | |
1040 | } | |
1041 | ||
23607025 | 1042 | int dpcm_path_get(struct snd_soc_pcm_runtime *fe, |
01d7584c LG |
1043 | int stream, struct snd_soc_dapm_widget_list **list_) |
1044 | { | |
1045 | struct snd_soc_dai *cpu_dai = fe->cpu_dai; | |
1046 | struct snd_soc_dapm_widget_list *list; | |
1047 | int paths; | |
1048 | ||
1049 | list = kzalloc(sizeof(struct snd_soc_dapm_widget_list) + | |
1050 | sizeof(struct snd_soc_dapm_widget *), GFP_KERNEL); | |
1051 | if (list == NULL) | |
1052 | return -ENOMEM; | |
1053 | ||
1054 | /* get number of valid DAI paths and their widgets */ | |
1055 | paths = snd_soc_dapm_dai_get_connected_widgets(cpu_dai, stream, &list); | |
1056 | ||
103d84a3 | 1057 | dev_dbg(fe->dev, "ASoC: found %d audio %s paths\n", paths, |
01d7584c LG |
1058 | stream ? "capture" : "playback"); |
1059 | ||
1060 | *list_ = list; | |
1061 | return paths; | |
1062 | } | |
1063 | ||
01d7584c LG |
1064 | static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream, |
1065 | struct snd_soc_dapm_widget_list **list_) | |
1066 | { | |
1067 | struct snd_soc_dpcm *dpcm; | |
1068 | struct snd_soc_dapm_widget_list *list = *list_; | |
1069 | struct snd_soc_dapm_widget *widget; | |
1070 | int prune = 0; | |
1071 | ||
1072 | /* Destroy any old FE <--> BE connections */ | |
1073 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1074 | ||
1075 | /* is there a valid CPU DAI widget for this BE */ | |
37018610 | 1076 | widget = dai_get_widget(dpcm->be->cpu_dai, stream); |
01d7584c LG |
1077 | |
1078 | /* prune the BE if it's no longer in our active list */ | |
1079 | if (widget && widget_in_list(list, widget)) | |
1080 | continue; | |
1081 | ||
1082 | /* is there a valid CODEC DAI widget for this BE */ | |
37018610 | 1083 | widget = dai_get_widget(dpcm->be->codec_dai, stream); |
01d7584c LG |
1084 | |
1085 | /* prune the BE if it's no longer in our active list */ | |
1086 | if (widget && widget_in_list(list, widget)) | |
1087 | continue; | |
1088 | ||
103d84a3 | 1089 | dev_dbg(fe->dev, "ASoC: pruning %s BE %s for %s\n", |
01d7584c LG |
1090 | stream ? "capture" : "playback", |
1091 | dpcm->be->dai_link->name, fe->dai_link->name); | |
1092 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
1093 | dpcm->be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | |
1094 | prune++; | |
1095 | } | |
1096 | ||
103d84a3 | 1097 | dev_dbg(fe->dev, "ASoC: found %d old BE paths for pruning\n", prune); |
01d7584c LG |
1098 | return prune; |
1099 | } | |
1100 | ||
1101 | static int dpcm_add_paths(struct snd_soc_pcm_runtime *fe, int stream, | |
1102 | struct snd_soc_dapm_widget_list **list_) | |
1103 | { | |
1104 | struct snd_soc_card *card = fe->card; | |
1105 | struct snd_soc_dapm_widget_list *list = *list_; | |
1106 | struct snd_soc_pcm_runtime *be; | |
1107 | int i, new = 0, err; | |
1108 | ||
1109 | /* Create any new FE <--> BE connections */ | |
1110 | for (i = 0; i < list->num_widgets; i++) { | |
1111 | ||
4616274d MB |
1112 | switch (list->widgets[i]->id) { |
1113 | case snd_soc_dapm_dai_in: | |
1114 | case snd_soc_dapm_dai_out: | |
1115 | break; | |
1116 | default: | |
01d7584c | 1117 | continue; |
4616274d | 1118 | } |
01d7584c LG |
1119 | |
1120 | /* is there a valid BE rtd for this widget */ | |
1121 | be = dpcm_get_be(card, list->widgets[i], stream); | |
1122 | if (!be) { | |
103d84a3 | 1123 | dev_err(fe->dev, "ASoC: no BE found for %s\n", |
01d7584c LG |
1124 | list->widgets[i]->name); |
1125 | continue; | |
1126 | } | |
1127 | ||
1128 | /* make sure BE is a real BE */ | |
1129 | if (!be->dai_link->no_pcm) | |
1130 | continue; | |
1131 | ||
1132 | /* don't connect if FE is not running */ | |
23607025 | 1133 | if (!fe->dpcm[stream].runtime && !fe->fe_compr) |
01d7584c LG |
1134 | continue; |
1135 | ||
1136 | /* newly connected FE and BE */ | |
1137 | err = dpcm_be_connect(fe, be, stream); | |
1138 | if (err < 0) { | |
103d84a3 | 1139 | dev_err(fe->dev, "ASoC: can't connect %s\n", |
01d7584c LG |
1140 | list->widgets[i]->name); |
1141 | break; | |
1142 | } else if (err == 0) /* already connected */ | |
1143 | continue; | |
1144 | ||
1145 | /* new */ | |
1146 | be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | |
1147 | new++; | |
1148 | } | |
1149 | ||
103d84a3 | 1150 | dev_dbg(fe->dev, "ASoC: found %d new BE paths\n", new); |
01d7584c LG |
1151 | return new; |
1152 | } | |
1153 | ||
1154 | /* | |
1155 | * Find the corresponding BE DAIs that source or sink audio to this | |
1156 | * FE substream. | |
1157 | */ | |
23607025 | 1158 | int dpcm_process_paths(struct snd_soc_pcm_runtime *fe, |
01d7584c LG |
1159 | int stream, struct snd_soc_dapm_widget_list **list, int new) |
1160 | { | |
1161 | if (new) | |
1162 | return dpcm_add_paths(fe, stream, list); | |
1163 | else | |
1164 | return dpcm_prune_paths(fe, stream, list); | |
1165 | } | |
1166 | ||
23607025 | 1167 | void dpcm_clear_pending_state(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1168 | { |
1169 | struct snd_soc_dpcm *dpcm; | |
1170 | ||
1171 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
1172 | dpcm->be->dpcm[stream].runtime_update = | |
1173 | SND_SOC_DPCM_UPDATE_NO; | |
1174 | } | |
1175 | ||
1176 | static void dpcm_be_dai_startup_unwind(struct snd_soc_pcm_runtime *fe, | |
1177 | int stream) | |
1178 | { | |
1179 | struct snd_soc_dpcm *dpcm; | |
1180 | ||
1181 | /* disable any enabled and non active backends */ | |
1182 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1183 | ||
1184 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1185 | struct snd_pcm_substream *be_substream = | |
1186 | snd_soc_dpcm_get_substream(be, stream); | |
1187 | ||
1188 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1189 | dev_err(be->dev, "ASoC: no users %s at close - state %d\n", |
01d7584c LG |
1190 | stream ? "capture" : "playback", |
1191 | be->dpcm[stream].state); | |
1192 | ||
1193 | if (--be->dpcm[stream].users != 0) | |
1194 | continue; | |
1195 | ||
1196 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) | |
1197 | continue; | |
1198 | ||
1199 | soc_pcm_close(be_substream); | |
1200 | be_substream->runtime = NULL; | |
1201 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1202 | } | |
1203 | } | |
1204 | ||
23607025 | 1205 | int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1206 | { |
1207 | struct snd_soc_dpcm *dpcm; | |
1208 | int err, count = 0; | |
1209 | ||
1210 | /* only startup BE DAIs that are either sinks or sources to this FE DAI */ | |
1211 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1212 | ||
1213 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1214 | struct snd_pcm_substream *be_substream = | |
1215 | snd_soc_dpcm_get_substream(be, stream); | |
1216 | ||
2062b4c5 RKAL |
1217 | if (!be_substream) { |
1218 | dev_err(be->dev, "ASoC: no backend %s stream\n", | |
1219 | stream ? "capture" : "playback"); | |
1220 | continue; | |
1221 | } | |
1222 | ||
01d7584c LG |
1223 | /* is this op for this BE ? */ |
1224 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1225 | continue; | |
1226 | ||
1227 | /* first time the dpcm is open ? */ | |
1228 | if (be->dpcm[stream].users == DPCM_MAX_BE_USERS) | |
103d84a3 | 1229 | dev_err(be->dev, "ASoC: too many users %s at open %d\n", |
01d7584c LG |
1230 | stream ? "capture" : "playback", |
1231 | be->dpcm[stream].state); | |
1232 | ||
1233 | if (be->dpcm[stream].users++ != 0) | |
1234 | continue; | |
1235 | ||
1236 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_NEW) && | |
1237 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_CLOSE)) | |
1238 | continue; | |
1239 | ||
2062b4c5 RKAL |
1240 | dev_dbg(be->dev, "ASoC: open %s BE %s\n", |
1241 | stream ? "capture" : "playback", be->dai_link->name); | |
01d7584c LG |
1242 | |
1243 | be_substream->runtime = be->dpcm[stream].runtime; | |
1244 | err = soc_pcm_open(be_substream); | |
1245 | if (err < 0) { | |
103d84a3 | 1246 | dev_err(be->dev, "ASoC: BE open failed %d\n", err); |
01d7584c LG |
1247 | be->dpcm[stream].users--; |
1248 | if (be->dpcm[stream].users < 0) | |
103d84a3 | 1249 | dev_err(be->dev, "ASoC: no users %s at unwind %d\n", |
01d7584c LG |
1250 | stream ? "capture" : "playback", |
1251 | be->dpcm[stream].state); | |
1252 | ||
1253 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1254 | goto unwind; | |
1255 | } | |
1256 | ||
1257 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
1258 | count++; | |
1259 | } | |
1260 | ||
1261 | return count; | |
1262 | ||
1263 | unwind: | |
1264 | /* disable any enabled and non active backends */ | |
1265 | list_for_each_entry_continue_reverse(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1266 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1267 | struct snd_pcm_substream *be_substream = | |
1268 | snd_soc_dpcm_get_substream(be, stream); | |
1269 | ||
1270 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1271 | continue; | |
1272 | ||
1273 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1274 | dev_err(be->dev, "ASoC: no users %s at close %d\n", |
01d7584c LG |
1275 | stream ? "capture" : "playback", |
1276 | be->dpcm[stream].state); | |
1277 | ||
1278 | if (--be->dpcm[stream].users != 0) | |
1279 | continue; | |
1280 | ||
1281 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) | |
1282 | continue; | |
1283 | ||
1284 | soc_pcm_close(be_substream); | |
1285 | be_substream->runtime = NULL; | |
1286 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1287 | } | |
1288 | ||
1289 | return err; | |
1290 | } | |
1291 | ||
08ae9b45 LPC |
1292 | static void dpcm_init_runtime_hw(struct snd_pcm_runtime *runtime, |
1293 | struct snd_soc_pcm_stream *stream) | |
1294 | { | |
1295 | runtime->hw.rate_min = stream->rate_min; | |
1296 | runtime->hw.rate_max = stream->rate_max; | |
1297 | runtime->hw.channels_min = stream->channels_min; | |
1298 | runtime->hw.channels_max = stream->channels_max; | |
002220a9 LPC |
1299 | if (runtime->hw.formats) |
1300 | runtime->hw.formats &= stream->formats; | |
1301 | else | |
1302 | runtime->hw.formats = stream->formats; | |
08ae9b45 LPC |
1303 | runtime->hw.rates = stream->rates; |
1304 | } | |
1305 | ||
45c0a188 | 1306 | static void dpcm_set_fe_runtime(struct snd_pcm_substream *substream) |
01d7584c LG |
1307 | { |
1308 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1309 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1310 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1311 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
1312 | ||
08ae9b45 LPC |
1313 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
1314 | dpcm_init_runtime_hw(runtime, &cpu_dai_drv->playback); | |
1315 | else | |
1316 | dpcm_init_runtime_hw(runtime, &cpu_dai_drv->capture); | |
01d7584c LG |
1317 | } |
1318 | ||
1319 | static int dpcm_fe_dai_startup(struct snd_pcm_substream *fe_substream) | |
1320 | { | |
1321 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
1322 | struct snd_pcm_runtime *runtime = fe_substream->runtime; | |
1323 | int stream = fe_substream->stream, ret = 0; | |
1324 | ||
1325 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
1326 | ||
1327 | ret = dpcm_be_dai_startup(fe, fe_substream->stream); | |
1328 | if (ret < 0) { | |
103d84a3 | 1329 | dev_err(fe->dev,"ASoC: failed to start some BEs %d\n", ret); |
01d7584c LG |
1330 | goto be_err; |
1331 | } | |
1332 | ||
103d84a3 | 1333 | dev_dbg(fe->dev, "ASoC: open FE %s\n", fe->dai_link->name); |
01d7584c LG |
1334 | |
1335 | /* start the DAI frontend */ | |
1336 | ret = soc_pcm_open(fe_substream); | |
1337 | if (ret < 0) { | |
103d84a3 | 1338 | dev_err(fe->dev,"ASoC: failed to start FE %d\n", ret); |
01d7584c LG |
1339 | goto unwind; |
1340 | } | |
1341 | ||
1342 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
1343 | ||
1344 | dpcm_set_fe_runtime(fe_substream); | |
1345 | snd_pcm_limit_hw_rates(runtime); | |
1346 | ||
1347 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
1348 | return 0; | |
1349 | ||
1350 | unwind: | |
1351 | dpcm_be_dai_startup_unwind(fe, fe_substream->stream); | |
1352 | be_err: | |
1353 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
1354 | return ret; | |
1355 | } | |
1356 | ||
23607025 | 1357 | int dpcm_be_dai_shutdown(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1358 | { |
1359 | struct snd_soc_dpcm *dpcm; | |
1360 | ||
1361 | /* only shutdown BEs that are either sinks or sources to this FE DAI */ | |
1362 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1363 | ||
1364 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1365 | struct snd_pcm_substream *be_substream = | |
1366 | snd_soc_dpcm_get_substream(be, stream); | |
1367 | ||
1368 | /* is this op for this BE ? */ | |
1369 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1370 | continue; | |
1371 | ||
1372 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1373 | dev_err(be->dev, "ASoC: no users %s at close - state %d\n", |
01d7584c LG |
1374 | stream ? "capture" : "playback", |
1375 | be->dpcm[stream].state); | |
1376 | ||
1377 | if (--be->dpcm[stream].users != 0) | |
1378 | continue; | |
1379 | ||
1380 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
1381 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN)) | |
1382 | continue; | |
1383 | ||
103d84a3 | 1384 | dev_dbg(be->dev, "ASoC: close BE %s\n", |
01d7584c LG |
1385 | dpcm->fe->dai_link->name); |
1386 | ||
1387 | soc_pcm_close(be_substream); | |
1388 | be_substream->runtime = NULL; | |
1389 | ||
1390 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1391 | } | |
1392 | return 0; | |
1393 | } | |
1394 | ||
1395 | static int dpcm_fe_dai_shutdown(struct snd_pcm_substream *substream) | |
1396 | { | |
1397 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1398 | int stream = substream->stream; | |
1399 | ||
1400 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
1401 | ||
1402 | /* shutdown the BEs */ | |
1403 | dpcm_be_dai_shutdown(fe, substream->stream); | |
1404 | ||
103d84a3 | 1405 | dev_dbg(fe->dev, "ASoC: close FE %s\n", fe->dai_link->name); |
01d7584c LG |
1406 | |
1407 | /* now shutdown the frontend */ | |
1408 | soc_pcm_close(substream); | |
1409 | ||
1410 | /* run the stream event for each BE */ | |
1411 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP); | |
1412 | ||
1413 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1414 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
1415 | return 0; | |
1416 | } | |
1417 | ||
23607025 | 1418 | int dpcm_be_dai_hw_free(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1419 | { |
1420 | struct snd_soc_dpcm *dpcm; | |
1421 | ||
1422 | /* only hw_params backends that are either sinks or sources | |
1423 | * to this frontend DAI */ | |
1424 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1425 | ||
1426 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1427 | struct snd_pcm_substream *be_substream = | |
1428 | snd_soc_dpcm_get_substream(be, stream); | |
1429 | ||
1430 | /* is this op for this BE ? */ | |
1431 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1432 | continue; | |
1433 | ||
1434 | /* only free hw when no longer used - check all FEs */ | |
1435 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
1436 | continue; | |
1437 | ||
1438 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
1439 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && | |
1440 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
08b27848 | 1441 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED) && |
01d7584c LG |
1442 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) |
1443 | continue; | |
1444 | ||
103d84a3 | 1445 | dev_dbg(be->dev, "ASoC: hw_free BE %s\n", |
01d7584c LG |
1446 | dpcm->fe->dai_link->name); |
1447 | ||
1448 | soc_pcm_hw_free(be_substream); | |
1449 | ||
1450 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
1451 | } | |
1452 | ||
1453 | return 0; | |
1454 | } | |
1455 | ||
45c0a188 | 1456 | static int dpcm_fe_dai_hw_free(struct snd_pcm_substream *substream) |
01d7584c LG |
1457 | { |
1458 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1459 | int err, stream = substream->stream; | |
1460 | ||
1461 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
1462 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
1463 | ||
103d84a3 | 1464 | dev_dbg(fe->dev, "ASoC: hw_free FE %s\n", fe->dai_link->name); |
01d7584c LG |
1465 | |
1466 | /* call hw_free on the frontend */ | |
1467 | err = soc_pcm_hw_free(substream); | |
1468 | if (err < 0) | |
103d84a3 | 1469 | dev_err(fe->dev,"ASoC: hw_free FE %s failed\n", |
01d7584c LG |
1470 | fe->dai_link->name); |
1471 | ||
1472 | /* only hw_params backends that are either sinks or sources | |
1473 | * to this frontend DAI */ | |
1474 | err = dpcm_be_dai_hw_free(fe, stream); | |
1475 | ||
1476 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
1477 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
1478 | ||
1479 | mutex_unlock(&fe->card->mutex); | |
1480 | return 0; | |
1481 | } | |
1482 | ||
23607025 | 1483 | int dpcm_be_dai_hw_params(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1484 | { |
1485 | struct snd_soc_dpcm *dpcm; | |
1486 | int ret; | |
1487 | ||
1488 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1489 | ||
1490 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1491 | struct snd_pcm_substream *be_substream = | |
1492 | snd_soc_dpcm_get_substream(be, stream); | |
1493 | ||
1494 | /* is this op for this BE ? */ | |
1495 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1496 | continue; | |
1497 | ||
1498 | /* only allow hw_params() if no connected FEs are running */ | |
1499 | if (!snd_soc_dpcm_can_be_params(fe, be, stream)) | |
1500 | continue; | |
1501 | ||
1502 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) && | |
1503 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
1504 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE)) | |
1505 | continue; | |
1506 | ||
103d84a3 | 1507 | dev_dbg(be->dev, "ASoC: hw_params BE %s\n", |
01d7584c LG |
1508 | dpcm->fe->dai_link->name); |
1509 | ||
1510 | /* copy params for each dpcm */ | |
1511 | memcpy(&dpcm->hw_params, &fe->dpcm[stream].hw_params, | |
1512 | sizeof(struct snd_pcm_hw_params)); | |
1513 | ||
1514 | /* perform any hw_params fixups */ | |
1515 | if (be->dai_link->be_hw_params_fixup) { | |
1516 | ret = be->dai_link->be_hw_params_fixup(be, | |
1517 | &dpcm->hw_params); | |
1518 | if (ret < 0) { | |
1519 | dev_err(be->dev, | |
103d84a3 | 1520 | "ASoC: hw_params BE fixup failed %d\n", |
01d7584c LG |
1521 | ret); |
1522 | goto unwind; | |
1523 | } | |
1524 | } | |
1525 | ||
1526 | ret = soc_pcm_hw_params(be_substream, &dpcm->hw_params); | |
1527 | if (ret < 0) { | |
1528 | dev_err(dpcm->be->dev, | |
103d84a3 | 1529 | "ASoC: hw_params BE failed %d\n", ret); |
01d7584c LG |
1530 | goto unwind; |
1531 | } | |
1532 | ||
1533 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS; | |
1534 | } | |
1535 | return 0; | |
1536 | ||
1537 | unwind: | |
1538 | /* disable any enabled and non active backends */ | |
1539 | list_for_each_entry_continue_reverse(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1540 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1541 | struct snd_pcm_substream *be_substream = | |
1542 | snd_soc_dpcm_get_substream(be, stream); | |
1543 | ||
1544 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1545 | continue; | |
1546 | ||
1547 | /* only allow hw_free() if no connected FEs are running */ | |
1548 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
1549 | continue; | |
1550 | ||
1551 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) && | |
1552 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
1553 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
1554 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
1555 | continue; | |
1556 | ||
1557 | soc_pcm_hw_free(be_substream); | |
1558 | } | |
1559 | ||
1560 | return ret; | |
1561 | } | |
1562 | ||
45c0a188 MB |
1563 | static int dpcm_fe_dai_hw_params(struct snd_pcm_substream *substream, |
1564 | struct snd_pcm_hw_params *params) | |
01d7584c LG |
1565 | { |
1566 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1567 | int ret, stream = substream->stream; | |
1568 | ||
1569 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
1570 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
1571 | ||
1572 | memcpy(&fe->dpcm[substream->stream].hw_params, params, | |
1573 | sizeof(struct snd_pcm_hw_params)); | |
1574 | ret = dpcm_be_dai_hw_params(fe, substream->stream); | |
1575 | if (ret < 0) { | |
103d84a3 | 1576 | dev_err(fe->dev,"ASoC: hw_params BE failed %d\n", ret); |
01d7584c LG |
1577 | goto out; |
1578 | } | |
1579 | ||
103d84a3 | 1580 | dev_dbg(fe->dev, "ASoC: hw_params FE %s rate %d chan %x fmt %d\n", |
01d7584c LG |
1581 | fe->dai_link->name, params_rate(params), |
1582 | params_channels(params), params_format(params)); | |
1583 | ||
1584 | /* call hw_params on the frontend */ | |
1585 | ret = soc_pcm_hw_params(substream, params); | |
1586 | if (ret < 0) { | |
103d84a3 | 1587 | dev_err(fe->dev,"ASoC: hw_params FE failed %d\n", ret); |
01d7584c LG |
1588 | dpcm_be_dai_hw_free(fe, stream); |
1589 | } else | |
1590 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS; | |
1591 | ||
1592 | out: | |
1593 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
1594 | mutex_unlock(&fe->card->mutex); | |
1595 | return ret; | |
1596 | } | |
1597 | ||
1598 | static int dpcm_do_trigger(struct snd_soc_dpcm *dpcm, | |
1599 | struct snd_pcm_substream *substream, int cmd) | |
1600 | { | |
1601 | int ret; | |
1602 | ||
103d84a3 | 1603 | dev_dbg(dpcm->be->dev, "ASoC: trigger BE %s cmd %d\n", |
01d7584c LG |
1604 | dpcm->fe->dai_link->name, cmd); |
1605 | ||
1606 | ret = soc_pcm_trigger(substream, cmd); | |
1607 | if (ret < 0) | |
103d84a3 | 1608 | dev_err(dpcm->be->dev,"ASoC: trigger BE failed %d\n", ret); |
01d7584c LG |
1609 | |
1610 | return ret; | |
1611 | } | |
1612 | ||
23607025 | 1613 | int dpcm_be_dai_trigger(struct snd_soc_pcm_runtime *fe, int stream, |
45c0a188 | 1614 | int cmd) |
01d7584c LG |
1615 | { |
1616 | struct snd_soc_dpcm *dpcm; | |
1617 | int ret = 0; | |
1618 | ||
1619 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1620 | ||
1621 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1622 | struct snd_pcm_substream *be_substream = | |
1623 | snd_soc_dpcm_get_substream(be, stream); | |
1624 | ||
1625 | /* is this op for this BE ? */ | |
1626 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1627 | continue; | |
1628 | ||
1629 | switch (cmd) { | |
1630 | case SNDRV_PCM_TRIGGER_START: | |
1631 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && | |
1632 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
1633 | continue; | |
1634 | ||
1635 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
1636 | if (ret) | |
1637 | return ret; | |
1638 | ||
1639 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
1640 | break; | |
1641 | case SNDRV_PCM_TRIGGER_RESUME: | |
1642 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND)) | |
1643 | continue; | |
1644 | ||
1645 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
1646 | if (ret) | |
1647 | return ret; | |
1648 | ||
1649 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
1650 | break; | |
1651 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
1652 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED)) | |
1653 | continue; | |
1654 | ||
1655 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
1656 | if (ret) | |
1657 | return ret; | |
1658 | ||
1659 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
1660 | break; | |
1661 | case SNDRV_PCM_TRIGGER_STOP: | |
1662 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
1663 | continue; | |
1664 | ||
1665 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
1666 | continue; | |
1667 | ||
1668 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
1669 | if (ret) | |
1670 | return ret; | |
1671 | ||
1672 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; | |
1673 | break; | |
1674 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
868a6ca8 | 1675 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) |
01d7584c LG |
1676 | continue; |
1677 | ||
1678 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
1679 | continue; | |
1680 | ||
1681 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
1682 | if (ret) | |
1683 | return ret; | |
1684 | ||
1685 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_SUSPEND; | |
1686 | break; | |
1687 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
1688 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
1689 | continue; | |
1690 | ||
1691 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
1692 | continue; | |
1693 | ||
1694 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
1695 | if (ret) | |
1696 | return ret; | |
1697 | ||
1698 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED; | |
1699 | break; | |
1700 | } | |
1701 | } | |
1702 | ||
1703 | return ret; | |
1704 | } | |
1705 | EXPORT_SYMBOL_GPL(dpcm_be_dai_trigger); | |
1706 | ||
45c0a188 | 1707 | static int dpcm_fe_dai_trigger(struct snd_pcm_substream *substream, int cmd) |
01d7584c LG |
1708 | { |
1709 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1710 | int stream = substream->stream, ret; | |
1711 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; | |
1712 | ||
1713 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
1714 | ||
1715 | switch (trigger) { | |
1716 | case SND_SOC_DPCM_TRIGGER_PRE: | |
1717 | /* call trigger on the frontend before the backend. */ | |
1718 | ||
103d84a3 | 1719 | dev_dbg(fe->dev, "ASoC: pre trigger FE %s cmd %d\n", |
01d7584c LG |
1720 | fe->dai_link->name, cmd); |
1721 | ||
1722 | ret = soc_pcm_trigger(substream, cmd); | |
1723 | if (ret < 0) { | |
103d84a3 | 1724 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
01d7584c LG |
1725 | goto out; |
1726 | } | |
1727 | ||
1728 | ret = dpcm_be_dai_trigger(fe, substream->stream, cmd); | |
1729 | break; | |
1730 | case SND_SOC_DPCM_TRIGGER_POST: | |
1731 | /* call trigger on the frontend after the backend. */ | |
1732 | ||
1733 | ret = dpcm_be_dai_trigger(fe, substream->stream, cmd); | |
1734 | if (ret < 0) { | |
103d84a3 | 1735 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
01d7584c LG |
1736 | goto out; |
1737 | } | |
1738 | ||
103d84a3 | 1739 | dev_dbg(fe->dev, "ASoC: post trigger FE %s cmd %d\n", |
01d7584c LG |
1740 | fe->dai_link->name, cmd); |
1741 | ||
1742 | ret = soc_pcm_trigger(substream, cmd); | |
1743 | break; | |
07bf84aa LG |
1744 | case SND_SOC_DPCM_TRIGGER_BESPOKE: |
1745 | /* bespoke trigger() - handles both FE and BEs */ | |
1746 | ||
103d84a3 | 1747 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd %d\n", |
07bf84aa LG |
1748 | fe->dai_link->name, cmd); |
1749 | ||
1750 | ret = soc_pcm_bespoke_trigger(substream, cmd); | |
1751 | if (ret < 0) { | |
103d84a3 | 1752 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
07bf84aa LG |
1753 | goto out; |
1754 | } | |
1755 | break; | |
01d7584c | 1756 | default: |
103d84a3 | 1757 | dev_err(fe->dev, "ASoC: invalid trigger cmd %d for %s\n", cmd, |
01d7584c LG |
1758 | fe->dai_link->name); |
1759 | ret = -EINVAL; | |
1760 | goto out; | |
1761 | } | |
1762 | ||
1763 | switch (cmd) { | |
1764 | case SNDRV_PCM_TRIGGER_START: | |
1765 | case SNDRV_PCM_TRIGGER_RESUME: | |
1766 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
1767 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
1768 | break; | |
1769 | case SNDRV_PCM_TRIGGER_STOP: | |
1770 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
1771 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
1772 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; | |
1773 | break; | |
1774 | } | |
1775 | ||
1776 | out: | |
1777 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
1778 | return ret; | |
1779 | } | |
1780 | ||
23607025 | 1781 | int dpcm_be_dai_prepare(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1782 | { |
1783 | struct snd_soc_dpcm *dpcm; | |
1784 | int ret = 0; | |
1785 | ||
1786 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1787 | ||
1788 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1789 | struct snd_pcm_substream *be_substream = | |
1790 | snd_soc_dpcm_get_substream(be, stream); | |
1791 | ||
1792 | /* is this op for this BE ? */ | |
1793 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1794 | continue; | |
1795 | ||
1796 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
1797 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
1798 | continue; | |
1799 | ||
103d84a3 | 1800 | dev_dbg(be->dev, "ASoC: prepare BE %s\n", |
01d7584c LG |
1801 | dpcm->fe->dai_link->name); |
1802 | ||
1803 | ret = soc_pcm_prepare(be_substream); | |
1804 | if (ret < 0) { | |
103d84a3 | 1805 | dev_err(be->dev, "ASoC: backend prepare failed %d\n", |
01d7584c LG |
1806 | ret); |
1807 | break; | |
1808 | } | |
1809 | ||
1810 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | |
1811 | } | |
1812 | return ret; | |
1813 | } | |
1814 | ||
45c0a188 | 1815 | static int dpcm_fe_dai_prepare(struct snd_pcm_substream *substream) |
01d7584c LG |
1816 | { |
1817 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1818 | int stream = substream->stream, ret = 0; | |
1819 | ||
1820 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
1821 | ||
103d84a3 | 1822 | dev_dbg(fe->dev, "ASoC: prepare FE %s\n", fe->dai_link->name); |
01d7584c LG |
1823 | |
1824 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
1825 | ||
1826 | /* there is no point preparing this FE if there are no BEs */ | |
1827 | if (list_empty(&fe->dpcm[stream].be_clients)) { | |
103d84a3 | 1828 | dev_err(fe->dev, "ASoC: no backend DAIs enabled for %s\n", |
01d7584c LG |
1829 | fe->dai_link->name); |
1830 | ret = -EINVAL; | |
1831 | goto out; | |
1832 | } | |
1833 | ||
1834 | ret = dpcm_be_dai_prepare(fe, substream->stream); | |
1835 | if (ret < 0) | |
1836 | goto out; | |
1837 | ||
1838 | /* call prepare on the frontend */ | |
1839 | ret = soc_pcm_prepare(substream); | |
1840 | if (ret < 0) { | |
103d84a3 | 1841 | dev_err(fe->dev,"ASoC: prepare FE %s failed\n", |
01d7584c LG |
1842 | fe->dai_link->name); |
1843 | goto out; | |
1844 | } | |
1845 | ||
1846 | /* run the stream event for each BE */ | |
1847 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START); | |
1848 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | |
1849 | ||
1850 | out: | |
1851 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
1852 | mutex_unlock(&fe->card->mutex); | |
1853 | ||
1854 | return ret; | |
1855 | } | |
1856 | ||
be3f3f2c LG |
1857 | static int soc_pcm_ioctl(struct snd_pcm_substream *substream, |
1858 | unsigned int cmd, void *arg) | |
1859 | { | |
1860 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1861 | struct snd_soc_platform *platform = rtd->platform; | |
1862 | ||
c5914b0a | 1863 | if (platform->driver->ops && platform->driver->ops->ioctl) |
be3f3f2c LG |
1864 | return platform->driver->ops->ioctl(substream, cmd, arg); |
1865 | return snd_pcm_lib_ioctl(substream, cmd, arg); | |
1866 | } | |
1867 | ||
618dae11 LG |
1868 | static int dpcm_run_update_shutdown(struct snd_soc_pcm_runtime *fe, int stream) |
1869 | { | |
07bf84aa LG |
1870 | struct snd_pcm_substream *substream = |
1871 | snd_soc_dpcm_get_substream(fe, stream); | |
1872 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; | |
618dae11 LG |
1873 | int err; |
1874 | ||
103d84a3 | 1875 | dev_dbg(fe->dev, "ASoC: runtime %s close on FE %s\n", |
618dae11 LG |
1876 | stream ? "capture" : "playback", fe->dai_link->name); |
1877 | ||
07bf84aa LG |
1878 | if (trigger == SND_SOC_DPCM_TRIGGER_BESPOKE) { |
1879 | /* call bespoke trigger - FE takes care of all BE triggers */ | |
103d84a3 | 1880 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd stop\n", |
07bf84aa LG |
1881 | fe->dai_link->name); |
1882 | ||
1883 | err = soc_pcm_bespoke_trigger(substream, SNDRV_PCM_TRIGGER_STOP); | |
1884 | if (err < 0) | |
103d84a3 | 1885 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", err); |
07bf84aa | 1886 | } else { |
103d84a3 | 1887 | dev_dbg(fe->dev, "ASoC: trigger FE %s cmd stop\n", |
07bf84aa LG |
1888 | fe->dai_link->name); |
1889 | ||
1890 | err = dpcm_be_dai_trigger(fe, stream, SNDRV_PCM_TRIGGER_STOP); | |
1891 | if (err < 0) | |
103d84a3 | 1892 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", err); |
07bf84aa | 1893 | } |
618dae11 LG |
1894 | |
1895 | err = dpcm_be_dai_hw_free(fe, stream); | |
1896 | if (err < 0) | |
103d84a3 | 1897 | dev_err(fe->dev,"ASoC: hw_free FE failed %d\n", err); |
618dae11 LG |
1898 | |
1899 | err = dpcm_be_dai_shutdown(fe, stream); | |
1900 | if (err < 0) | |
103d84a3 | 1901 | dev_err(fe->dev,"ASoC: shutdown FE failed %d\n", err); |
618dae11 LG |
1902 | |
1903 | /* run the stream event for each BE */ | |
1904 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_NOP); | |
1905 | ||
1906 | return 0; | |
1907 | } | |
1908 | ||
1909 | static int dpcm_run_update_startup(struct snd_soc_pcm_runtime *fe, int stream) | |
1910 | { | |
07bf84aa LG |
1911 | struct snd_pcm_substream *substream = |
1912 | snd_soc_dpcm_get_substream(fe, stream); | |
618dae11 | 1913 | struct snd_soc_dpcm *dpcm; |
07bf84aa | 1914 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; |
618dae11 LG |
1915 | int ret; |
1916 | ||
103d84a3 | 1917 | dev_dbg(fe->dev, "ASoC: runtime %s open on FE %s\n", |
618dae11 LG |
1918 | stream ? "capture" : "playback", fe->dai_link->name); |
1919 | ||
1920 | /* Only start the BE if the FE is ready */ | |
1921 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_FREE || | |
1922 | fe->dpcm[stream].state == SND_SOC_DPCM_STATE_CLOSE) | |
1923 | return -EINVAL; | |
1924 | ||
1925 | /* startup must always be called for new BEs */ | |
1926 | ret = dpcm_be_dai_startup(fe, stream); | |
fffc0ca2 | 1927 | if (ret < 0) |
618dae11 | 1928 | goto disconnect; |
618dae11 LG |
1929 | |
1930 | /* keep going if FE state is > open */ | |
1931 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_OPEN) | |
1932 | return 0; | |
01d7584c | 1933 | |
618dae11 | 1934 | ret = dpcm_be_dai_hw_params(fe, stream); |
fffc0ca2 | 1935 | if (ret < 0) |
618dae11 | 1936 | goto close; |
618dae11 LG |
1937 | |
1938 | /* keep going if FE state is > hw_params */ | |
1939 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_PARAMS) | |
1940 | return 0; | |
1941 | ||
1942 | ||
1943 | ret = dpcm_be_dai_prepare(fe, stream); | |
fffc0ca2 | 1944 | if (ret < 0) |
618dae11 | 1945 | goto hw_free; |
618dae11 LG |
1946 | |
1947 | /* run the stream event for each BE */ | |
1948 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_NOP); | |
1949 | ||
1950 | /* keep going if FE state is > prepare */ | |
1951 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_PREPARE || | |
1952 | fe->dpcm[stream].state == SND_SOC_DPCM_STATE_STOP) | |
1953 | return 0; | |
1954 | ||
07bf84aa LG |
1955 | if (trigger == SND_SOC_DPCM_TRIGGER_BESPOKE) { |
1956 | /* call trigger on the frontend - FE takes care of all BE triggers */ | |
103d84a3 | 1957 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd start\n", |
07bf84aa | 1958 | fe->dai_link->name); |
618dae11 | 1959 | |
07bf84aa LG |
1960 | ret = soc_pcm_bespoke_trigger(substream, SNDRV_PCM_TRIGGER_START); |
1961 | if (ret < 0) { | |
103d84a3 | 1962 | dev_err(fe->dev,"ASoC: bespoke trigger FE failed %d\n", ret); |
07bf84aa LG |
1963 | goto hw_free; |
1964 | } | |
1965 | } else { | |
103d84a3 | 1966 | dev_dbg(fe->dev, "ASoC: trigger FE %s cmd start\n", |
07bf84aa LG |
1967 | fe->dai_link->name); |
1968 | ||
1969 | ret = dpcm_be_dai_trigger(fe, stream, | |
1970 | SNDRV_PCM_TRIGGER_START); | |
1971 | if (ret < 0) { | |
103d84a3 | 1972 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
07bf84aa LG |
1973 | goto hw_free; |
1974 | } | |
618dae11 LG |
1975 | } |
1976 | ||
1977 | return 0; | |
1978 | ||
1979 | hw_free: | |
1980 | dpcm_be_dai_hw_free(fe, stream); | |
1981 | close: | |
1982 | dpcm_be_dai_shutdown(fe, stream); | |
1983 | disconnect: | |
1984 | /* disconnect any non started BEs */ | |
1985 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1986 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1987 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
1988 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
1989 | } | |
1990 | ||
1991 | return ret; | |
1992 | } | |
1993 | ||
1994 | static int dpcm_run_new_update(struct snd_soc_pcm_runtime *fe, int stream) | |
1995 | { | |
1996 | int ret; | |
1997 | ||
1998 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | |
1999 | ret = dpcm_run_update_startup(fe, stream); | |
2000 | if (ret < 0) | |
103d84a3 | 2001 | dev_err(fe->dev, "ASoC: failed to startup some BEs\n"); |
618dae11 LG |
2002 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; |
2003 | ||
2004 | return ret; | |
2005 | } | |
2006 | ||
2007 | static int dpcm_run_old_update(struct snd_soc_pcm_runtime *fe, int stream) | |
2008 | { | |
2009 | int ret; | |
2010 | ||
2011 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | |
2012 | ret = dpcm_run_update_shutdown(fe, stream); | |
2013 | if (ret < 0) | |
103d84a3 | 2014 | dev_err(fe->dev, "ASoC: failed to shutdown some BEs\n"); |
618dae11 LG |
2015 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; |
2016 | ||
2017 | return ret; | |
2018 | } | |
2019 | ||
2020 | /* Called by DAPM mixer/mux changes to update audio routing between PCMs and | |
2021 | * any DAI links. | |
2022 | */ | |
c3f48ae6 | 2023 | int soc_dpcm_runtime_update(struct snd_soc_card *card) |
618dae11 | 2024 | { |
618dae11 LG |
2025 | int i, old, new, paths; |
2026 | ||
618dae11 LG |
2027 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_RUNTIME); |
2028 | for (i = 0; i < card->num_rtd; i++) { | |
2029 | struct snd_soc_dapm_widget_list *list; | |
2030 | struct snd_soc_pcm_runtime *fe = &card->rtd[i]; | |
2031 | ||
2032 | /* make sure link is FE */ | |
2033 | if (!fe->dai_link->dynamic) | |
2034 | continue; | |
2035 | ||
2036 | /* only check active links */ | |
2037 | if (!fe->cpu_dai->active) | |
2038 | continue; | |
2039 | ||
2040 | /* DAPM sync will call this to update DSP paths */ | |
103d84a3 | 2041 | dev_dbg(fe->dev, "ASoC: DPCM runtime update for FE %s\n", |
618dae11 LG |
2042 | fe->dai_link->name); |
2043 | ||
2044 | /* skip if FE doesn't have playback capability */ | |
2045 | if (!fe->cpu_dai->driver->playback.channels_min) | |
2046 | goto capture; | |
2047 | ||
2048 | paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_PLAYBACK, &list); | |
2049 | if (paths < 0) { | |
103d84a3 | 2050 | dev_warn(fe->dev, "ASoC: %s no valid %s path\n", |
618dae11 LG |
2051 | fe->dai_link->name, "playback"); |
2052 | mutex_unlock(&card->mutex); | |
2053 | return paths; | |
2054 | } | |
2055 | ||
2056 | /* update any new playback paths */ | |
2057 | new = dpcm_process_paths(fe, SNDRV_PCM_STREAM_PLAYBACK, &list, 1); | |
2058 | if (new) { | |
2059 | dpcm_run_new_update(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2060 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2061 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2062 | } | |
2063 | ||
2064 | /* update any old playback paths */ | |
2065 | old = dpcm_process_paths(fe, SNDRV_PCM_STREAM_PLAYBACK, &list, 0); | |
2066 | if (old) { | |
2067 | dpcm_run_old_update(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2068 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2069 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2070 | } | |
2071 | ||
2072 | capture: | |
2073 | /* skip if FE doesn't have capture capability */ | |
2074 | if (!fe->cpu_dai->driver->capture.channels_min) | |
2075 | continue; | |
2076 | ||
2077 | paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_CAPTURE, &list); | |
2078 | if (paths < 0) { | |
103d84a3 | 2079 | dev_warn(fe->dev, "ASoC: %s no valid %s path\n", |
618dae11 LG |
2080 | fe->dai_link->name, "capture"); |
2081 | mutex_unlock(&card->mutex); | |
2082 | return paths; | |
2083 | } | |
2084 | ||
2085 | /* update any new capture paths */ | |
2086 | new = dpcm_process_paths(fe, SNDRV_PCM_STREAM_CAPTURE, &list, 1); | |
2087 | if (new) { | |
2088 | dpcm_run_new_update(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2089 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2090 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2091 | } | |
2092 | ||
2093 | /* update any old capture paths */ | |
2094 | old = dpcm_process_paths(fe, SNDRV_PCM_STREAM_CAPTURE, &list, 0); | |
2095 | if (old) { | |
2096 | dpcm_run_old_update(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2097 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2098 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2099 | } | |
2100 | ||
2101 | dpcm_path_put(&list); | |
2102 | } | |
2103 | ||
2104 | mutex_unlock(&card->mutex); | |
2105 | return 0; | |
2106 | } | |
01d7584c LG |
2107 | int soc_dpcm_be_digital_mute(struct snd_soc_pcm_runtime *fe, int mute) |
2108 | { | |
2109 | struct snd_soc_dpcm *dpcm; | |
2110 | struct list_head *clients = | |
2111 | &fe->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients; | |
2112 | ||
2113 | list_for_each_entry(dpcm, clients, list_be) { | |
2114 | ||
2115 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2116 | struct snd_soc_dai *dai = be->codec_dai; | |
2117 | struct snd_soc_dai_driver *drv = dai->driver; | |
2118 | ||
2119 | if (be->dai_link->ignore_suspend) | |
2120 | continue; | |
2121 | ||
103d84a3 | 2122 | dev_dbg(be->dev, "ASoC: BE digital mute %s\n", be->dai_link->name); |
01d7584c | 2123 | |
c5914b0a MB |
2124 | if (drv->ops && drv->ops->digital_mute && dai->playback_active) |
2125 | drv->ops->digital_mute(dai, mute); | |
01d7584c LG |
2126 | } |
2127 | ||
2128 | return 0; | |
2129 | } | |
2130 | ||
45c0a188 | 2131 | static int dpcm_fe_dai_open(struct snd_pcm_substream *fe_substream) |
01d7584c LG |
2132 | { |
2133 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
2134 | struct snd_soc_dpcm *dpcm; | |
2135 | struct snd_soc_dapm_widget_list *list; | |
2136 | int ret; | |
2137 | int stream = fe_substream->stream; | |
2138 | ||
2139 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2140 | fe->dpcm[stream].runtime = fe_substream->runtime; | |
2141 | ||
2142 | if (dpcm_path_get(fe, stream, &list) <= 0) { | |
103d84a3 | 2143 | dev_dbg(fe->dev, "ASoC: %s no valid %s route\n", |
01d7584c | 2144 | fe->dai_link->name, stream ? "capture" : "playback"); |
01d7584c LG |
2145 | } |
2146 | ||
2147 | /* calculate valid and active FE <-> BE dpcms */ | |
2148 | dpcm_process_paths(fe, stream, &list, 1); | |
2149 | ||
2150 | ret = dpcm_fe_dai_startup(fe_substream); | |
2151 | if (ret < 0) { | |
2152 | /* clean up all links */ | |
2153 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
2154 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
2155 | ||
2156 | dpcm_be_disconnect(fe, stream); | |
2157 | fe->dpcm[stream].runtime = NULL; | |
2158 | } | |
2159 | ||
2160 | dpcm_clear_pending_state(fe, stream); | |
2161 | dpcm_path_put(&list); | |
2162 | mutex_unlock(&fe->card->mutex); | |
2163 | return ret; | |
2164 | } | |
2165 | ||
45c0a188 | 2166 | static int dpcm_fe_dai_close(struct snd_pcm_substream *fe_substream) |
01d7584c LG |
2167 | { |
2168 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
2169 | struct snd_soc_dpcm *dpcm; | |
2170 | int stream = fe_substream->stream, ret; | |
2171 | ||
2172 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2173 | ret = dpcm_fe_dai_shutdown(fe_substream); | |
2174 | ||
2175 | /* mark FE's links ready to prune */ | |
2176 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
2177 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
2178 | ||
2179 | dpcm_be_disconnect(fe, stream); | |
2180 | ||
2181 | fe->dpcm[stream].runtime = NULL; | |
2182 | mutex_unlock(&fe->card->mutex); | |
2183 | return ret; | |
2184 | } | |
2185 | ||
ddee627c LG |
2186 | /* create a new pcm */ |
2187 | int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) | |
2188 | { | |
ddee627c LG |
2189 | struct snd_soc_platform *platform = rtd->platform; |
2190 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
2191 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2192 | struct snd_pcm *pcm; | |
2193 | char new_name[64]; | |
2194 | int ret = 0, playback = 0, capture = 0; | |
2195 | ||
01d7584c | 2196 | if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) { |
1e9de42f LG |
2197 | playback = rtd->dai_link->dpcm_playback; |
2198 | capture = rtd->dai_link->dpcm_capture; | |
01d7584c | 2199 | } else { |
05679092 MB |
2200 | if (codec_dai->driver->playback.channels_min && |
2201 | cpu_dai->driver->playback.channels_min) | |
01d7584c | 2202 | playback = 1; |
05679092 MB |
2203 | if (codec_dai->driver->capture.channels_min && |
2204 | cpu_dai->driver->capture.channels_min) | |
01d7584c LG |
2205 | capture = 1; |
2206 | } | |
2207 | ||
d6bead02 FE |
2208 | if (rtd->dai_link->playback_only) { |
2209 | playback = 1; | |
2210 | capture = 0; | |
2211 | } | |
2212 | ||
2213 | if (rtd->dai_link->capture_only) { | |
2214 | playback = 0; | |
2215 | capture = 1; | |
2216 | } | |
2217 | ||
01d7584c LG |
2218 | /* create the PCM */ |
2219 | if (rtd->dai_link->no_pcm) { | |
2220 | snprintf(new_name, sizeof(new_name), "(%s)", | |
2221 | rtd->dai_link->stream_name); | |
2222 | ||
2223 | ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num, | |
2224 | playback, capture, &pcm); | |
2225 | } else { | |
2226 | if (rtd->dai_link->dynamic) | |
2227 | snprintf(new_name, sizeof(new_name), "%s (*)", | |
2228 | rtd->dai_link->stream_name); | |
2229 | else | |
2230 | snprintf(new_name, sizeof(new_name), "%s %s-%d", | |
2231 | rtd->dai_link->stream_name, codec_dai->name, num); | |
2232 | ||
2233 | ret = snd_pcm_new(rtd->card->snd_card, new_name, num, playback, | |
2234 | capture, &pcm); | |
2235 | } | |
ddee627c | 2236 | if (ret < 0) { |
103d84a3 | 2237 | dev_err(rtd->card->dev, "ASoC: can't create pcm for %s\n", |
5cb9b748 | 2238 | rtd->dai_link->name); |
ddee627c LG |
2239 | return ret; |
2240 | } | |
103d84a3 | 2241 | dev_dbg(rtd->card->dev, "ASoC: registered pcm #%d %s\n",num, new_name); |
ddee627c LG |
2242 | |
2243 | /* DAPM dai link stream work */ | |
2244 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
2245 | ||
2246 | rtd->pcm = pcm; | |
2247 | pcm->private_data = rtd; | |
01d7584c LG |
2248 | |
2249 | if (rtd->dai_link->no_pcm) { | |
2250 | if (playback) | |
2251 | pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd; | |
2252 | if (capture) | |
2253 | pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->private_data = rtd; | |
2254 | goto out; | |
2255 | } | |
2256 | ||
2257 | /* ASoC PCM operations */ | |
2258 | if (rtd->dai_link->dynamic) { | |
2259 | rtd->ops.open = dpcm_fe_dai_open; | |
2260 | rtd->ops.hw_params = dpcm_fe_dai_hw_params; | |
2261 | rtd->ops.prepare = dpcm_fe_dai_prepare; | |
2262 | rtd->ops.trigger = dpcm_fe_dai_trigger; | |
2263 | rtd->ops.hw_free = dpcm_fe_dai_hw_free; | |
2264 | rtd->ops.close = dpcm_fe_dai_close; | |
2265 | rtd->ops.pointer = soc_pcm_pointer; | |
be3f3f2c | 2266 | rtd->ops.ioctl = soc_pcm_ioctl; |
01d7584c LG |
2267 | } else { |
2268 | rtd->ops.open = soc_pcm_open; | |
2269 | rtd->ops.hw_params = soc_pcm_hw_params; | |
2270 | rtd->ops.prepare = soc_pcm_prepare; | |
2271 | rtd->ops.trigger = soc_pcm_trigger; | |
2272 | rtd->ops.hw_free = soc_pcm_hw_free; | |
2273 | rtd->ops.close = soc_pcm_close; | |
2274 | rtd->ops.pointer = soc_pcm_pointer; | |
be3f3f2c | 2275 | rtd->ops.ioctl = soc_pcm_ioctl; |
01d7584c LG |
2276 | } |
2277 | ||
ddee627c | 2278 | if (platform->driver->ops) { |
01d7584c LG |
2279 | rtd->ops.ack = platform->driver->ops->ack; |
2280 | rtd->ops.copy = platform->driver->ops->copy; | |
2281 | rtd->ops.silence = platform->driver->ops->silence; | |
2282 | rtd->ops.page = platform->driver->ops->page; | |
2283 | rtd->ops.mmap = platform->driver->ops->mmap; | |
ddee627c LG |
2284 | } |
2285 | ||
2286 | if (playback) | |
01d7584c | 2287 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &rtd->ops); |
ddee627c LG |
2288 | |
2289 | if (capture) | |
01d7584c | 2290 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &rtd->ops); |
ddee627c LG |
2291 | |
2292 | if (platform->driver->pcm_new) { | |
2293 | ret = platform->driver->pcm_new(rtd); | |
2294 | if (ret < 0) { | |
b1bc7b3c MB |
2295 | dev_err(platform->dev, |
2296 | "ASoC: pcm constructor failed: %d\n", | |
2297 | ret); | |
ddee627c LG |
2298 | return ret; |
2299 | } | |
2300 | } | |
2301 | ||
2302 | pcm->private_free = platform->driver->pcm_free; | |
01d7584c | 2303 | out: |
7cc302d2 | 2304 | dev_info(rtd->card->dev, "%s <-> %s mapping ok\n", codec_dai->name, |
ddee627c LG |
2305 | cpu_dai->name); |
2306 | return ret; | |
2307 | } | |
01d7584c LG |
2308 | |
2309 | /* is the current PCM operation for this FE ? */ | |
2310 | int snd_soc_dpcm_fe_can_update(struct snd_soc_pcm_runtime *fe, int stream) | |
2311 | { | |
2312 | if (fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) | |
2313 | return 1; | |
2314 | return 0; | |
2315 | } | |
2316 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_fe_can_update); | |
2317 | ||
2318 | /* is the current PCM operation for this BE ? */ | |
2319 | int snd_soc_dpcm_be_can_update(struct snd_soc_pcm_runtime *fe, | |
2320 | struct snd_soc_pcm_runtime *be, int stream) | |
2321 | { | |
2322 | if ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) || | |
2323 | ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_BE) && | |
2324 | be->dpcm[stream].runtime_update)) | |
2325 | return 1; | |
2326 | return 0; | |
2327 | } | |
2328 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_can_update); | |
2329 | ||
2330 | /* get the substream for this BE */ | |
2331 | struct snd_pcm_substream * | |
2332 | snd_soc_dpcm_get_substream(struct snd_soc_pcm_runtime *be, int stream) | |
2333 | { | |
2334 | return be->pcm->streams[stream].substream; | |
2335 | } | |
2336 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_get_substream); | |
2337 | ||
2338 | /* get the BE runtime state */ | |
2339 | enum snd_soc_dpcm_state | |
2340 | snd_soc_dpcm_be_get_state(struct snd_soc_pcm_runtime *be, int stream) | |
2341 | { | |
2342 | return be->dpcm[stream].state; | |
2343 | } | |
2344 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_get_state); | |
2345 | ||
2346 | /* set the BE runtime state */ | |
2347 | void snd_soc_dpcm_be_set_state(struct snd_soc_pcm_runtime *be, | |
2348 | int stream, enum snd_soc_dpcm_state state) | |
2349 | { | |
2350 | be->dpcm[stream].state = state; | |
2351 | } | |
2352 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_set_state); | |
2353 | ||
2354 | /* | |
2355 | * We can only hw_free, stop, pause or suspend a BE DAI if any of it's FE | |
2356 | * are not running, paused or suspended for the specified stream direction. | |
2357 | */ | |
2358 | int snd_soc_dpcm_can_be_free_stop(struct snd_soc_pcm_runtime *fe, | |
2359 | struct snd_soc_pcm_runtime *be, int stream) | |
2360 | { | |
2361 | struct snd_soc_dpcm *dpcm; | |
2362 | int state; | |
2363 | ||
2364 | list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { | |
2365 | ||
2366 | if (dpcm->fe == fe) | |
2367 | continue; | |
2368 | ||
2369 | state = dpcm->fe->dpcm[stream].state; | |
2370 | if (state == SND_SOC_DPCM_STATE_START || | |
2371 | state == SND_SOC_DPCM_STATE_PAUSED || | |
2372 | state == SND_SOC_DPCM_STATE_SUSPEND) | |
2373 | return 0; | |
2374 | } | |
2375 | ||
2376 | /* it's safe to free/stop this BE DAI */ | |
2377 | return 1; | |
2378 | } | |
2379 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_free_stop); | |
2380 | ||
2381 | /* | |
2382 | * We can only change hw params a BE DAI if any of it's FE are not prepared, | |
2383 | * running, paused or suspended for the specified stream direction. | |
2384 | */ | |
2385 | int snd_soc_dpcm_can_be_params(struct snd_soc_pcm_runtime *fe, | |
2386 | struct snd_soc_pcm_runtime *be, int stream) | |
2387 | { | |
2388 | struct snd_soc_dpcm *dpcm; | |
2389 | int state; | |
2390 | ||
2391 | list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { | |
2392 | ||
2393 | if (dpcm->fe == fe) | |
2394 | continue; | |
2395 | ||
2396 | state = dpcm->fe->dpcm[stream].state; | |
2397 | if (state == SND_SOC_DPCM_STATE_START || | |
2398 | state == SND_SOC_DPCM_STATE_PAUSED || | |
2399 | state == SND_SOC_DPCM_STATE_SUSPEND || | |
2400 | state == SND_SOC_DPCM_STATE_PREPARE) | |
2401 | return 0; | |
2402 | } | |
2403 | ||
2404 | /* it's safe to change hw_params */ | |
2405 | return 1; | |
2406 | } | |
2407 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_params); | |
f86dcef8 | 2408 | |
07bf84aa LG |
2409 | int snd_soc_platform_trigger(struct snd_pcm_substream *substream, |
2410 | int cmd, struct snd_soc_platform *platform) | |
2411 | { | |
c5914b0a | 2412 | if (platform->driver->ops && platform->driver->ops->trigger) |
07bf84aa LG |
2413 | return platform->driver->ops->trigger(substream, cmd); |
2414 | return 0; | |
2415 | } | |
2416 | EXPORT_SYMBOL_GPL(snd_soc_platform_trigger); | |
2417 | ||
f86dcef8 LG |
2418 | #ifdef CONFIG_DEBUG_FS |
2419 | static char *dpcm_state_string(enum snd_soc_dpcm_state state) | |
2420 | { | |
2421 | switch (state) { | |
2422 | case SND_SOC_DPCM_STATE_NEW: | |
2423 | return "new"; | |
2424 | case SND_SOC_DPCM_STATE_OPEN: | |
2425 | return "open"; | |
2426 | case SND_SOC_DPCM_STATE_HW_PARAMS: | |
2427 | return "hw_params"; | |
2428 | case SND_SOC_DPCM_STATE_PREPARE: | |
2429 | return "prepare"; | |
2430 | case SND_SOC_DPCM_STATE_START: | |
2431 | return "start"; | |
2432 | case SND_SOC_DPCM_STATE_STOP: | |
2433 | return "stop"; | |
2434 | case SND_SOC_DPCM_STATE_SUSPEND: | |
2435 | return "suspend"; | |
2436 | case SND_SOC_DPCM_STATE_PAUSED: | |
2437 | return "paused"; | |
2438 | case SND_SOC_DPCM_STATE_HW_FREE: | |
2439 | return "hw_free"; | |
2440 | case SND_SOC_DPCM_STATE_CLOSE: | |
2441 | return "close"; | |
2442 | } | |
2443 | ||
2444 | return "unknown"; | |
2445 | } | |
2446 | ||
f86dcef8 LG |
2447 | static ssize_t dpcm_show_state(struct snd_soc_pcm_runtime *fe, |
2448 | int stream, char *buf, size_t size) | |
2449 | { | |
2450 | struct snd_pcm_hw_params *params = &fe->dpcm[stream].hw_params; | |
2451 | struct snd_soc_dpcm *dpcm; | |
2452 | ssize_t offset = 0; | |
2453 | ||
2454 | /* FE state */ | |
2455 | offset += snprintf(buf + offset, size - offset, | |
2456 | "[%s - %s]\n", fe->dai_link->name, | |
2457 | stream ? "Capture" : "Playback"); | |
2458 | ||
2459 | offset += snprintf(buf + offset, size - offset, "State: %s\n", | |
2460 | dpcm_state_string(fe->dpcm[stream].state)); | |
2461 | ||
2462 | if ((fe->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) && | |
2463 | (fe->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP)) | |
2464 | offset += snprintf(buf + offset, size - offset, | |
2465 | "Hardware Params: " | |
2466 | "Format = %s, Channels = %d, Rate = %d\n", | |
2467 | snd_pcm_format_name(params_format(params)), | |
2468 | params_channels(params), | |
2469 | params_rate(params)); | |
2470 | ||
2471 | /* BEs state */ | |
2472 | offset += snprintf(buf + offset, size - offset, "Backends:\n"); | |
2473 | ||
2474 | if (list_empty(&fe->dpcm[stream].be_clients)) { | |
2475 | offset += snprintf(buf + offset, size - offset, | |
2476 | " No active DSP links\n"); | |
2477 | goto out; | |
2478 | } | |
2479 | ||
2480 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
2481 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2482 | params = &dpcm->hw_params; | |
2483 | ||
2484 | offset += snprintf(buf + offset, size - offset, | |
2485 | "- %s\n", be->dai_link->name); | |
2486 | ||
2487 | offset += snprintf(buf + offset, size - offset, | |
2488 | " State: %s\n", | |
2489 | dpcm_state_string(be->dpcm[stream].state)); | |
2490 | ||
2491 | if ((be->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) && | |
2492 | (be->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP)) | |
2493 | offset += snprintf(buf + offset, size - offset, | |
2494 | " Hardware Params: " | |
2495 | "Format = %s, Channels = %d, Rate = %d\n", | |
2496 | snd_pcm_format_name(params_format(params)), | |
2497 | params_channels(params), | |
2498 | params_rate(params)); | |
2499 | } | |
2500 | ||
2501 | out: | |
2502 | return offset; | |
2503 | } | |
2504 | ||
2505 | static ssize_t dpcm_state_read_file(struct file *file, char __user *user_buf, | |
2506 | size_t count, loff_t *ppos) | |
2507 | { | |
2508 | struct snd_soc_pcm_runtime *fe = file->private_data; | |
2509 | ssize_t out_count = PAGE_SIZE, offset = 0, ret = 0; | |
2510 | char *buf; | |
2511 | ||
2512 | buf = kmalloc(out_count, GFP_KERNEL); | |
2513 | if (!buf) | |
2514 | return -ENOMEM; | |
2515 | ||
2516 | if (fe->cpu_dai->driver->playback.channels_min) | |
2517 | offset += dpcm_show_state(fe, SNDRV_PCM_STREAM_PLAYBACK, | |
2518 | buf + offset, out_count - offset); | |
2519 | ||
2520 | if (fe->cpu_dai->driver->capture.channels_min) | |
2521 | offset += dpcm_show_state(fe, SNDRV_PCM_STREAM_CAPTURE, | |
2522 | buf + offset, out_count - offset); | |
2523 | ||
f57b8488 | 2524 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, offset); |
f86dcef8 | 2525 | |
f57b8488 LG |
2526 | kfree(buf); |
2527 | return ret; | |
f86dcef8 LG |
2528 | } |
2529 | ||
2530 | static const struct file_operations dpcm_state_fops = { | |
f57b8488 | 2531 | .open = simple_open, |
f86dcef8 LG |
2532 | .read = dpcm_state_read_file, |
2533 | .llseek = default_llseek, | |
2534 | }; | |
2535 | ||
2536 | int soc_dpcm_debugfs_add(struct snd_soc_pcm_runtime *rtd) | |
2537 | { | |
b3bba9a1 MB |
2538 | if (!rtd->dai_link) |
2539 | return 0; | |
2540 | ||
f86dcef8 LG |
2541 | rtd->debugfs_dpcm_root = debugfs_create_dir(rtd->dai_link->name, |
2542 | rtd->card->debugfs_card_root); | |
2543 | if (!rtd->debugfs_dpcm_root) { | |
2544 | dev_dbg(rtd->dev, | |
2545 | "ASoC: Failed to create dpcm debugfs directory %s\n", | |
2546 | rtd->dai_link->name); | |
2547 | return -EINVAL; | |
2548 | } | |
2549 | ||
f57b8488 | 2550 | rtd->debugfs_dpcm_state = debugfs_create_file("state", 0444, |
f86dcef8 LG |
2551 | rtd->debugfs_dpcm_root, |
2552 | rtd, &dpcm_state_fops); | |
2553 | ||
2554 | return 0; | |
2555 | } | |
2556 | #endif |