Commit | Line | Data |
---|---|---|
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> | |
c8dd1fec | 10 | * Mark Brown <broonie@opensource.wolfsonmicro.com> |
ddee627c LG |
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 | ||
c8dd1fec BC |
287 | static void soc_pcm_set_msb(struct snd_pcm_substream *substream, |
288 | struct snd_soc_dai *dai, int bits) | |
58ba9b25 | 289 | { |
c8dd1fec | 290 | int ret, i; |
58ba9b25 MB |
291 | |
292 | if (!bits) | |
293 | return; | |
294 | ||
295 | for (i = 0; i < ARRAY_SIZE(sample_sizes); i++) { | |
278047fd MB |
296 | if (bits >= sample_sizes[i]) |
297 | continue; | |
298 | ||
299 | ret = snd_pcm_hw_constraint_msbits(substream->runtime, 0, | |
300 | sample_sizes[i], bits); | |
58ba9b25 MB |
301 | if (ret != 0) |
302 | dev_warn(dai->dev, | |
103d84a3 | 303 | "ASoC: Failed to set MSB %d/%d: %d\n", |
58ba9b25 MB |
304 | bits, sample_sizes[i], ret); |
305 | } | |
306 | } | |
307 | ||
c8dd1fec BC |
308 | static void soc_pcm_apply_msb(struct snd_pcm_substream *substream) |
309 | { | |
310 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
311 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
312 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
313 | unsigned int bits = 0, cpu_bits; | |
314 | ||
315 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
316 | bits = codec_dai->driver->playback.sig_bits; | |
317 | cpu_bits = cpu_dai->driver->playback.sig_bits; | |
318 | } else { | |
319 | bits = codec_dai->driver->capture.sig_bits; | |
320 | cpu_bits = cpu_dai->driver->capture.sig_bits; | |
321 | } | |
322 | ||
323 | soc_pcm_set_msb(substream, codec_dai, bits); | |
324 | soc_pcm_set_msb(substream, cpu_dai, cpu_bits); | |
325 | } | |
326 | ||
78e45c99 | 327 | static void soc_pcm_init_runtime_hw(struct snd_pcm_runtime *runtime, |
bd477c31 LPC |
328 | struct snd_soc_pcm_stream *codec_stream, |
329 | struct snd_soc_pcm_stream *cpu_stream) | |
330 | { | |
78e45c99 LPC |
331 | struct snd_pcm_hardware *hw = &runtime->hw; |
332 | ||
bd477c31 LPC |
333 | hw->channels_min = max(codec_stream->channels_min, |
334 | cpu_stream->channels_min); | |
335 | hw->channels_max = min(codec_stream->channels_max, | |
336 | cpu_stream->channels_max); | |
16d7ea91 LPC |
337 | if (hw->formats) |
338 | hw->formats &= codec_stream->formats & cpu_stream->formats; | |
339 | else | |
340 | hw->formats = codec_stream->formats & cpu_stream->formats; | |
55dcdb50 LPC |
341 | hw->rates = snd_pcm_rate_mask_intersect(codec_stream->rates, |
342 | cpu_stream->rates); | |
78e45c99 | 343 | |
817873f4 LPC |
344 | hw->rate_min = 0; |
345 | hw->rate_max = UINT_MAX; | |
78e45c99 LPC |
346 | |
347 | snd_pcm_limit_hw_rates(runtime); | |
348 | ||
349 | hw->rate_min = max(hw->rate_min, cpu_stream->rate_min); | |
350 | hw->rate_min = max(hw->rate_min, codec_stream->rate_min); | |
351 | hw->rate_max = min_not_zero(hw->rate_max, cpu_stream->rate_max); | |
352 | hw->rate_max = min_not_zero(hw->rate_max, codec_stream->rate_max); | |
bd477c31 LPC |
353 | } |
354 | ||
ddee627c LG |
355 | /* |
356 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
357 | * then initialized and any private data can be allocated. This also calls | |
358 | * startup for the cpu DAI, platform, machine and codec DAI. | |
359 | */ | |
360 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
361 | { | |
362 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
363 | struct snd_pcm_runtime *runtime = substream->runtime; | |
364 | struct snd_soc_platform *platform = rtd->platform; | |
365 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
366 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
367 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
368 | struct snd_soc_dai_driver *codec_dai_drv = codec_dai->driver; | |
369 | int ret = 0; | |
370 | ||
988e8cc4 NC |
371 | pinctrl_pm_select_default_state(cpu_dai->dev); |
372 | pinctrl_pm_select_default_state(codec_dai->dev); | |
d6652ef8 MB |
373 | pm_runtime_get_sync(cpu_dai->dev); |
374 | pm_runtime_get_sync(codec_dai->dev); | |
375 | pm_runtime_get_sync(platform->dev); | |
376 | ||
b8c0dab9 | 377 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c LG |
378 | |
379 | /* startup the audio subsystem */ | |
c5914b0a | 380 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->startup) { |
ddee627c LG |
381 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); |
382 | if (ret < 0) { | |
103d84a3 LG |
383 | dev_err(cpu_dai->dev, "ASoC: can't open interface" |
384 | " %s: %d\n", cpu_dai->name, ret); | |
ddee627c LG |
385 | goto out; |
386 | } | |
387 | } | |
388 | ||
389 | if (platform->driver->ops && platform->driver->ops->open) { | |
390 | ret = platform->driver->ops->open(substream); | |
391 | if (ret < 0) { | |
103d84a3 | 392 | dev_err(platform->dev, "ASoC: can't open platform" |
f4333203 | 393 | " %s: %d\n", platform->component.name, ret); |
ddee627c LG |
394 | goto platform_err; |
395 | } | |
396 | } | |
397 | ||
c5914b0a | 398 | if (codec_dai->driver->ops && codec_dai->driver->ops->startup) { |
ddee627c LG |
399 | ret = codec_dai->driver->ops->startup(substream, codec_dai); |
400 | if (ret < 0) { | |
103d84a3 LG |
401 | dev_err(codec_dai->dev, "ASoC: can't open codec" |
402 | " %s: %d\n", codec_dai->name, ret); | |
ddee627c LG |
403 | goto codec_dai_err; |
404 | } | |
405 | } | |
406 | ||
407 | if (rtd->dai_link->ops && rtd->dai_link->ops->startup) { | |
408 | ret = rtd->dai_link->ops->startup(substream); | |
409 | if (ret < 0) { | |
103d84a3 | 410 | pr_err("ASoC: %s startup failed: %d\n", |
25bfe662 | 411 | rtd->dai_link->name, ret); |
ddee627c LG |
412 | goto machine_err; |
413 | } | |
414 | } | |
415 | ||
01d7584c LG |
416 | /* Dynamic PCM DAI links compat checks use dynamic capabilities */ |
417 | if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) | |
418 | goto dynamic; | |
419 | ||
ddee627c LG |
420 | /* Check that the codec and cpu DAIs are compatible */ |
421 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
78e45c99 | 422 | soc_pcm_init_runtime_hw(runtime, &codec_dai_drv->playback, |
bd477c31 | 423 | &cpu_dai_drv->playback); |
ddee627c | 424 | } else { |
78e45c99 | 425 | soc_pcm_init_runtime_hw(runtime, &codec_dai_drv->capture, |
bd477c31 | 426 | &cpu_dai_drv->capture); |
ddee627c LG |
427 | } |
428 | ||
62e5f676 LPC |
429 | if (soc_pcm_has_symmetry(substream)) |
430 | runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
431 | ||
ddee627c | 432 | ret = -EINVAL; |
ddee627c | 433 | if (!runtime->hw.rates) { |
103d84a3 | 434 | printk(KERN_ERR "ASoC: %s <-> %s No matching rates\n", |
ddee627c LG |
435 | codec_dai->name, cpu_dai->name); |
436 | goto config_err; | |
437 | } | |
438 | if (!runtime->hw.formats) { | |
103d84a3 | 439 | printk(KERN_ERR "ASoC: %s <-> %s No matching formats\n", |
ddee627c LG |
440 | codec_dai->name, cpu_dai->name); |
441 | goto config_err; | |
442 | } | |
443 | if (!runtime->hw.channels_min || !runtime->hw.channels_max || | |
444 | runtime->hw.channels_min > runtime->hw.channels_max) { | |
103d84a3 | 445 | printk(KERN_ERR "ASoC: %s <-> %s No matching channels\n", |
ddee627c LG |
446 | codec_dai->name, cpu_dai->name); |
447 | goto config_err; | |
448 | } | |
449 | ||
c8dd1fec | 450 | soc_pcm_apply_msb(substream); |
58ba9b25 | 451 | |
ddee627c | 452 | /* Symmetry only applies if we've already got an active stream. */ |
17841020 DA |
453 | if (cpu_dai->active) { |
454 | ret = soc_pcm_apply_symmetry(substream, cpu_dai); | |
455 | if (ret != 0) | |
456 | goto config_err; | |
457 | } | |
458 | ||
459 | if (codec_dai->active) { | |
460 | ret = soc_pcm_apply_symmetry(substream, codec_dai); | |
ddee627c LG |
461 | if (ret != 0) |
462 | goto config_err; | |
463 | } | |
464 | ||
103d84a3 | 465 | pr_debug("ASoC: %s <-> %s info:\n", |
ddee627c | 466 | codec_dai->name, cpu_dai->name); |
103d84a3 LG |
467 | pr_debug("ASoC: rate mask 0x%x\n", runtime->hw.rates); |
468 | pr_debug("ASoC: min ch %d max ch %d\n", runtime->hw.channels_min, | |
ddee627c | 469 | runtime->hw.channels_max); |
103d84a3 | 470 | pr_debug("ASoC: min rate %d max rate %d\n", runtime->hw.rate_min, |
ddee627c LG |
471 | runtime->hw.rate_max); |
472 | ||
01d7584c | 473 | dynamic: |
24894b76 LPC |
474 | |
475 | snd_soc_runtime_activate(rtd, substream->stream); | |
476 | ||
b8c0dab9 | 477 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
478 | return 0; |
479 | ||
480 | config_err: | |
481 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) | |
482 | rtd->dai_link->ops->shutdown(substream); | |
483 | ||
484 | machine_err: | |
485 | if (codec_dai->driver->ops->shutdown) | |
486 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
487 | ||
488 | codec_dai_err: | |
489 | if (platform->driver->ops && platform->driver->ops->close) | |
490 | platform->driver->ops->close(substream); | |
491 | ||
492 | platform_err: | |
493 | if (cpu_dai->driver->ops->shutdown) | |
494 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
495 | out: | |
b8c0dab9 | 496 | mutex_unlock(&rtd->pcm_mutex); |
d6652ef8 MB |
497 | |
498 | pm_runtime_put(platform->dev); | |
499 | pm_runtime_put(codec_dai->dev); | |
500 | pm_runtime_put(cpu_dai->dev); | |
988e8cc4 NC |
501 | if (!codec_dai->active) |
502 | pinctrl_pm_select_sleep_state(codec_dai->dev); | |
503 | if (!cpu_dai->active) | |
504 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
d6652ef8 | 505 | |
ddee627c LG |
506 | return ret; |
507 | } | |
508 | ||
509 | /* | |
510 | * Power down the audio subsystem pmdown_time msecs after close is called. | |
511 | * This is to ensure there are no pops or clicks in between any music tracks | |
512 | * due to DAPM power cycling. | |
513 | */ | |
514 | static void close_delayed_work(struct work_struct *work) | |
515 | { | |
516 | struct snd_soc_pcm_runtime *rtd = | |
517 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
518 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
519 | ||
b8c0dab9 | 520 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 521 | |
103d84a3 | 522 | dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n", |
ddee627c LG |
523 | codec_dai->driver->playback.stream_name, |
524 | codec_dai->playback_active ? "active" : "inactive", | |
9bffb1fb | 525 | rtd->pop_wait ? "yes" : "no"); |
ddee627c LG |
526 | |
527 | /* are we waiting on this codec DAI stream */ | |
9bffb1fb MLC |
528 | if (rtd->pop_wait == 1) { |
529 | rtd->pop_wait = 0; | |
7bd3a6f3 | 530 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK, |
d9b0951b | 531 | SND_SOC_DAPM_STREAM_STOP); |
ddee627c LG |
532 | } |
533 | ||
b8c0dab9 | 534 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
535 | } |
536 | ||
537 | /* | |
538 | * Called by ALSA when a PCM substream is closed. Private data can be | |
539 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
540 | * shutdown. | |
541 | */ | |
91d5e6b4 | 542 | static int soc_pcm_close(struct snd_pcm_substream *substream) |
ddee627c LG |
543 | { |
544 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
545 | struct snd_soc_platform *platform = rtd->platform; | |
546 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
547 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
ddee627c | 548 | |
b8c0dab9 | 549 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 550 | |
24894b76 | 551 | snd_soc_runtime_deactivate(rtd, substream->stream); |
ddee627c | 552 | |
17841020 DA |
553 | /* clear the corresponding DAIs rate when inactive */ |
554 | if (!cpu_dai->active) | |
555 | cpu_dai->rate = 0; | |
556 | ||
557 | if (!codec_dai->active) | |
558 | codec_dai->rate = 0; | |
25b76791 | 559 | |
ddee627c LG |
560 | if (cpu_dai->driver->ops->shutdown) |
561 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
562 | ||
563 | if (codec_dai->driver->ops->shutdown) | |
564 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
565 | ||
566 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) | |
567 | rtd->dai_link->ops->shutdown(substream); | |
568 | ||
569 | if (platform->driver->ops && platform->driver->ops->close) | |
570 | platform->driver->ops->close(substream); | |
ddee627c LG |
571 | |
572 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
208a1589 | 573 | if (snd_soc_runtime_ignore_pmdown_time(rtd)) { |
1d69c5c5 PU |
574 | /* powered down playback stream now */ |
575 | snd_soc_dapm_stream_event(rtd, | |
7bd3a6f3 | 576 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 577 | SND_SOC_DAPM_STREAM_STOP); |
1d69c5c5 PU |
578 | } else { |
579 | /* start delayed pop wq here for playback streams */ | |
9bffb1fb | 580 | rtd->pop_wait = 1; |
d4e1a73a MB |
581 | queue_delayed_work(system_power_efficient_wq, |
582 | &rtd->delayed_work, | |
583 | msecs_to_jiffies(rtd->pmdown_time)); | |
1d69c5c5 | 584 | } |
ddee627c LG |
585 | } else { |
586 | /* capture streams can be powered down now */ | |
7bd3a6f3 | 587 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_CAPTURE, |
d9b0951b | 588 | SND_SOC_DAPM_STREAM_STOP); |
ddee627c LG |
589 | } |
590 | ||
b8c0dab9 | 591 | mutex_unlock(&rtd->pcm_mutex); |
d6652ef8 MB |
592 | |
593 | pm_runtime_put(platform->dev); | |
594 | pm_runtime_put(codec_dai->dev); | |
595 | pm_runtime_put(cpu_dai->dev); | |
988e8cc4 NC |
596 | if (!codec_dai->active) |
597 | pinctrl_pm_select_sleep_state(codec_dai->dev); | |
598 | if (!cpu_dai->active) | |
599 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
d6652ef8 | 600 | |
ddee627c LG |
601 | return 0; |
602 | } | |
603 | ||
604 | /* | |
605 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
606 | * rate, etc. This function is non atomic and can be called multiple times, | |
607 | * it can refer to the runtime info. | |
608 | */ | |
609 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
610 | { | |
611 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
612 | struct snd_soc_platform *platform = rtd->platform; | |
613 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
614 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
615 | int ret = 0; | |
616 | ||
b8c0dab9 | 617 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c LG |
618 | |
619 | if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) { | |
620 | ret = rtd->dai_link->ops->prepare(substream); | |
621 | if (ret < 0) { | |
103d84a3 LG |
622 | dev_err(rtd->card->dev, "ASoC: machine prepare error:" |
623 | " %d\n", ret); | |
ddee627c LG |
624 | goto out; |
625 | } | |
626 | } | |
627 | ||
628 | if (platform->driver->ops && platform->driver->ops->prepare) { | |
629 | ret = platform->driver->ops->prepare(substream); | |
630 | if (ret < 0) { | |
103d84a3 LG |
631 | dev_err(platform->dev, "ASoC: platform prepare error:" |
632 | " %d\n", ret); | |
ddee627c LG |
633 | goto out; |
634 | } | |
635 | } | |
636 | ||
c5914b0a | 637 | if (codec_dai->driver->ops && codec_dai->driver->ops->prepare) { |
ddee627c LG |
638 | ret = codec_dai->driver->ops->prepare(substream, codec_dai); |
639 | if (ret < 0) { | |
103d84a3 | 640 | dev_err(codec_dai->dev, "ASoC: DAI prepare error: %d\n", |
25bfe662 | 641 | ret); |
ddee627c LG |
642 | goto out; |
643 | } | |
644 | } | |
645 | ||
c5914b0a | 646 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->prepare) { |
ddee627c LG |
647 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); |
648 | if (ret < 0) { | |
103d84a3 | 649 | dev_err(cpu_dai->dev, "ASoC: DAI prepare error: %d\n", |
25bfe662 | 650 | ret); |
ddee627c LG |
651 | goto out; |
652 | } | |
653 | } | |
654 | ||
655 | /* cancel any delayed stream shutdown that is pending */ | |
656 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
9bffb1fb MLC |
657 | rtd->pop_wait) { |
658 | rtd->pop_wait = 0; | |
ddee627c LG |
659 | cancel_delayed_work(&rtd->delayed_work); |
660 | } | |
661 | ||
d9b0951b LG |
662 | snd_soc_dapm_stream_event(rtd, substream->stream, |
663 | SND_SOC_DAPM_STREAM_START); | |
ddee627c | 664 | |
da18396f | 665 | snd_soc_dai_digital_mute(codec_dai, 0, substream->stream); |
ddee627c LG |
666 | |
667 | out: | |
b8c0dab9 | 668 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
669 | return ret; |
670 | } | |
671 | ||
672 | /* | |
673 | * Called by ALSA when the hardware params are set by application. This | |
674 | * function can also be called multiple times and can allocate buffers | |
675 | * (using snd_pcm_lib_* ). It's non-atomic. | |
676 | */ | |
677 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
678 | struct snd_pcm_hw_params *params) | |
679 | { | |
680 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
681 | struct snd_soc_platform *platform = rtd->platform; | |
682 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
683 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
684 | int ret = 0; | |
685 | ||
b8c0dab9 | 686 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 687 | |
3635bf09 NC |
688 | ret = soc_pcm_params_symmetry(substream, params); |
689 | if (ret) | |
690 | goto out; | |
691 | ||
ddee627c LG |
692 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) { |
693 | ret = rtd->dai_link->ops->hw_params(substream, params); | |
694 | if (ret < 0) { | |
103d84a3 LG |
695 | dev_err(rtd->card->dev, "ASoC: machine hw_params" |
696 | " failed: %d\n", ret); | |
ddee627c LG |
697 | goto out; |
698 | } | |
699 | } | |
700 | ||
c5914b0a | 701 | if (codec_dai->driver->ops && codec_dai->driver->ops->hw_params) { |
ddee627c LG |
702 | ret = codec_dai->driver->ops->hw_params(substream, params, codec_dai); |
703 | if (ret < 0) { | |
103d84a3 LG |
704 | dev_err(codec_dai->dev, "ASoC: can't set %s hw params:" |
705 | " %d\n", codec_dai->name, ret); | |
ddee627c LG |
706 | goto codec_err; |
707 | } | |
708 | } | |
709 | ||
c5914b0a | 710 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->hw_params) { |
ddee627c LG |
711 | ret = cpu_dai->driver->ops->hw_params(substream, params, cpu_dai); |
712 | if (ret < 0) { | |
103d84a3 | 713 | dev_err(cpu_dai->dev, "ASoC: %s hw params failed: %d\n", |
25bfe662 | 714 | cpu_dai->name, ret); |
ddee627c LG |
715 | goto interface_err; |
716 | } | |
717 | } | |
718 | ||
719 | if (platform->driver->ops && platform->driver->ops->hw_params) { | |
720 | ret = platform->driver->ops->hw_params(substream, params); | |
721 | if (ret < 0) { | |
103d84a3 | 722 | dev_err(platform->dev, "ASoC: %s hw params failed: %d\n", |
f4333203 | 723 | platform->component.name, ret); |
ddee627c LG |
724 | goto platform_err; |
725 | } | |
726 | } | |
727 | ||
3635bf09 | 728 | /* store the parameters for each DAIs */ |
17841020 | 729 | cpu_dai->rate = params_rate(params); |
3635bf09 NC |
730 | cpu_dai->channels = params_channels(params); |
731 | cpu_dai->sample_bits = | |
732 | snd_pcm_format_physical_width(params_format(params)); | |
733 | ||
17841020 | 734 | codec_dai->rate = params_rate(params); |
3635bf09 NC |
735 | codec_dai->channels = params_channels(params); |
736 | codec_dai->sample_bits = | |
737 | snd_pcm_format_physical_width(params_format(params)); | |
ddee627c LG |
738 | |
739 | out: | |
b8c0dab9 | 740 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
741 | return ret; |
742 | ||
743 | platform_err: | |
c5914b0a | 744 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->hw_free) |
ddee627c LG |
745 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); |
746 | ||
747 | interface_err: | |
c5914b0a | 748 | if (codec_dai->driver->ops && codec_dai->driver->ops->hw_free) |
ddee627c LG |
749 | codec_dai->driver->ops->hw_free(substream, codec_dai); |
750 | ||
751 | codec_err: | |
752 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) | |
753 | rtd->dai_link->ops->hw_free(substream); | |
754 | ||
b8c0dab9 | 755 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
756 | return ret; |
757 | } | |
758 | ||
759 | /* | |
760 | * Frees resources allocated by hw_params, can be called multiple times | |
761 | */ | |
762 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
763 | { | |
764 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
765 | struct snd_soc_platform *platform = rtd->platform; | |
766 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
767 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
7f62b6ee | 768 | bool playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; |
ddee627c | 769 | |
b8c0dab9 | 770 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 771 | |
d3383420 NC |
772 | /* clear the corresponding DAIs parameters when going to be inactive */ |
773 | if (cpu_dai->active == 1) { | |
774 | cpu_dai->rate = 0; | |
775 | cpu_dai->channels = 0; | |
776 | cpu_dai->sample_bits = 0; | |
777 | } | |
778 | ||
779 | if (codec_dai->active == 1) { | |
780 | codec_dai->rate = 0; | |
781 | codec_dai->channels = 0; | |
782 | codec_dai->sample_bits = 0; | |
783 | } | |
784 | ||
ddee627c | 785 | /* apply codec digital mute */ |
7f62b6ee NC |
786 | if ((playback && codec_dai->playback_active == 1) || |
787 | (!playback && codec_dai->capture_active == 1)) | |
da18396f | 788 | snd_soc_dai_digital_mute(codec_dai, 1, substream->stream); |
ddee627c LG |
789 | |
790 | /* free any machine hw params */ | |
791 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) | |
792 | rtd->dai_link->ops->hw_free(substream); | |
793 | ||
794 | /* free any DMA resources */ | |
795 | if (platform->driver->ops && platform->driver->ops->hw_free) | |
796 | platform->driver->ops->hw_free(substream); | |
797 | ||
798 | /* now free hw params for the DAIs */ | |
c5914b0a | 799 | if (codec_dai->driver->ops && codec_dai->driver->ops->hw_free) |
ddee627c LG |
800 | codec_dai->driver->ops->hw_free(substream, codec_dai); |
801 | ||
c5914b0a | 802 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->hw_free) |
ddee627c LG |
803 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); |
804 | ||
b8c0dab9 | 805 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
806 | return 0; |
807 | } | |
808 | ||
809 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
810 | { | |
811 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
812 | struct snd_soc_platform *platform = rtd->platform; | |
813 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
814 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
815 | int ret; | |
816 | ||
c5914b0a | 817 | if (codec_dai->driver->ops && codec_dai->driver->ops->trigger) { |
ddee627c LG |
818 | ret = codec_dai->driver->ops->trigger(substream, cmd, codec_dai); |
819 | if (ret < 0) | |
820 | return ret; | |
821 | } | |
822 | ||
823 | if (platform->driver->ops && platform->driver->ops->trigger) { | |
824 | ret = platform->driver->ops->trigger(substream, cmd); | |
825 | if (ret < 0) | |
826 | return ret; | |
827 | } | |
828 | ||
c5914b0a | 829 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->trigger) { |
ddee627c LG |
830 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); |
831 | if (ret < 0) | |
832 | return ret; | |
833 | } | |
4792b0db JN |
834 | |
835 | if (rtd->dai_link->ops && rtd->dai_link->ops->trigger) { | |
836 | ret = rtd->dai_link->ops->trigger(substream, cmd); | |
837 | if (ret < 0) | |
838 | return ret; | |
839 | } | |
840 | ||
ddee627c LG |
841 | return 0; |
842 | } | |
843 | ||
45c0a188 MB |
844 | static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream, |
845 | int cmd) | |
07bf84aa LG |
846 | { |
847 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
848 | struct snd_soc_platform *platform = rtd->platform; | |
849 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
850 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
851 | int ret; | |
852 | ||
c5914b0a MB |
853 | if (codec_dai->driver->ops && |
854 | codec_dai->driver->ops->bespoke_trigger) { | |
07bf84aa LG |
855 | ret = codec_dai->driver->ops->bespoke_trigger(substream, cmd, codec_dai); |
856 | if (ret < 0) | |
857 | return ret; | |
858 | } | |
859 | ||
dcf0fa27 | 860 | if (platform->driver->bespoke_trigger) { |
07bf84aa LG |
861 | ret = platform->driver->bespoke_trigger(substream, cmd); |
862 | if (ret < 0) | |
863 | return ret; | |
864 | } | |
865 | ||
c5914b0a | 866 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->bespoke_trigger) { |
07bf84aa LG |
867 | ret = cpu_dai->driver->ops->bespoke_trigger(substream, cmd, cpu_dai); |
868 | if (ret < 0) | |
869 | return ret; | |
870 | } | |
871 | return 0; | |
872 | } | |
ddee627c LG |
873 | /* |
874 | * soc level wrapper for pointer callback | |
875 | * If cpu_dai, codec_dai, platform driver has the delay callback, than | |
876 | * the runtime->delay will be updated accordingly. | |
877 | */ | |
878 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
879 | { | |
880 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
881 | struct snd_soc_platform *platform = rtd->platform; | |
882 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
883 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
884 | struct snd_pcm_runtime *runtime = substream->runtime; | |
885 | snd_pcm_uframes_t offset = 0; | |
886 | snd_pcm_sframes_t delay = 0; | |
887 | ||
888 | if (platform->driver->ops && platform->driver->ops->pointer) | |
889 | offset = platform->driver->ops->pointer(substream); | |
890 | ||
c5914b0a | 891 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->delay) |
ddee627c LG |
892 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); |
893 | ||
c5914b0a | 894 | if (codec_dai->driver->ops && codec_dai->driver->ops->delay) |
ddee627c LG |
895 | delay += codec_dai->driver->ops->delay(substream, codec_dai); |
896 | ||
897 | if (platform->driver->delay) | |
898 | delay += platform->driver->delay(substream, codec_dai); | |
899 | ||
900 | runtime->delay = delay; | |
901 | ||
902 | return offset; | |
903 | } | |
904 | ||
01d7584c LG |
905 | /* connect a FE and BE */ |
906 | static int dpcm_be_connect(struct snd_soc_pcm_runtime *fe, | |
907 | struct snd_soc_pcm_runtime *be, int stream) | |
908 | { | |
909 | struct snd_soc_dpcm *dpcm; | |
910 | ||
911 | /* only add new dpcms */ | |
912 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
913 | if (dpcm->be == be && dpcm->fe == fe) | |
914 | return 0; | |
915 | } | |
916 | ||
917 | dpcm = kzalloc(sizeof(struct snd_soc_dpcm), GFP_KERNEL); | |
918 | if (!dpcm) | |
919 | return -ENOMEM; | |
920 | ||
921 | dpcm->be = be; | |
922 | dpcm->fe = fe; | |
923 | be->dpcm[stream].runtime = fe->dpcm[stream].runtime; | |
924 | dpcm->state = SND_SOC_DPCM_LINK_STATE_NEW; | |
925 | list_add(&dpcm->list_be, &fe->dpcm[stream].be_clients); | |
926 | list_add(&dpcm->list_fe, &be->dpcm[stream].fe_clients); | |
927 | ||
7cc302d2 | 928 | dev_dbg(fe->dev, "connected new DPCM %s path %s %s %s\n", |
01d7584c LG |
929 | stream ? "capture" : "playback", fe->dai_link->name, |
930 | stream ? "<-" : "->", be->dai_link->name); | |
931 | ||
f86dcef8 LG |
932 | #ifdef CONFIG_DEBUG_FS |
933 | dpcm->debugfs_state = debugfs_create_u32(be->dai_link->name, 0644, | |
934 | fe->debugfs_dpcm_root, &dpcm->state); | |
935 | #endif | |
01d7584c LG |
936 | return 1; |
937 | } | |
938 | ||
939 | /* reparent a BE onto another FE */ | |
940 | static void dpcm_be_reparent(struct snd_soc_pcm_runtime *fe, | |
941 | struct snd_soc_pcm_runtime *be, int stream) | |
942 | { | |
943 | struct snd_soc_dpcm *dpcm; | |
944 | struct snd_pcm_substream *fe_substream, *be_substream; | |
945 | ||
946 | /* reparent if BE is connected to other FEs */ | |
947 | if (!be->dpcm[stream].users) | |
948 | return; | |
949 | ||
950 | be_substream = snd_soc_dpcm_get_substream(be, stream); | |
951 | ||
952 | list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { | |
953 | if (dpcm->fe == fe) | |
954 | continue; | |
955 | ||
7cc302d2 | 956 | dev_dbg(fe->dev, "reparent %s path %s %s %s\n", |
01d7584c LG |
957 | stream ? "capture" : "playback", |
958 | dpcm->fe->dai_link->name, | |
959 | stream ? "<-" : "->", dpcm->be->dai_link->name); | |
960 | ||
961 | fe_substream = snd_soc_dpcm_get_substream(dpcm->fe, stream); | |
962 | be_substream->runtime = fe_substream->runtime; | |
963 | break; | |
964 | } | |
965 | } | |
966 | ||
967 | /* disconnect a BE and FE */ | |
23607025 | 968 | void dpcm_be_disconnect(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
969 | { |
970 | struct snd_soc_dpcm *dpcm, *d; | |
971 | ||
972 | list_for_each_entry_safe(dpcm, d, &fe->dpcm[stream].be_clients, list_be) { | |
103d84a3 | 973 | dev_dbg(fe->dev, "ASoC: BE %s disconnect check for %s\n", |
01d7584c LG |
974 | stream ? "capture" : "playback", |
975 | dpcm->be->dai_link->name); | |
976 | ||
977 | if (dpcm->state != SND_SOC_DPCM_LINK_STATE_FREE) | |
978 | continue; | |
979 | ||
7cc302d2 | 980 | dev_dbg(fe->dev, "freed DSP %s path %s %s %s\n", |
01d7584c LG |
981 | stream ? "capture" : "playback", fe->dai_link->name, |
982 | stream ? "<-" : "->", dpcm->be->dai_link->name); | |
983 | ||
984 | /* BEs still alive need new FE */ | |
985 | dpcm_be_reparent(fe, dpcm->be, stream); | |
986 | ||
f86dcef8 LG |
987 | #ifdef CONFIG_DEBUG_FS |
988 | debugfs_remove(dpcm->debugfs_state); | |
989 | #endif | |
01d7584c LG |
990 | list_del(&dpcm->list_be); |
991 | list_del(&dpcm->list_fe); | |
992 | kfree(dpcm); | |
993 | } | |
994 | } | |
995 | ||
996 | /* get BE for DAI widget and stream */ | |
997 | static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card, | |
998 | struct snd_soc_dapm_widget *widget, int stream) | |
999 | { | |
1000 | struct snd_soc_pcm_runtime *be; | |
1001 | int i; | |
1002 | ||
1003 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
1004 | for (i = 0; i < card->num_links; i++) { | |
1005 | be = &card->rtd[i]; | |
1006 | ||
35ea0655 LG |
1007 | if (!be->dai_link->no_pcm) |
1008 | continue; | |
1009 | ||
01d7584c LG |
1010 | if (be->cpu_dai->playback_widget == widget || |
1011 | be->codec_dai->playback_widget == widget) | |
1012 | return be; | |
1013 | } | |
1014 | } else { | |
1015 | ||
1016 | for (i = 0; i < card->num_links; i++) { | |
1017 | be = &card->rtd[i]; | |
1018 | ||
35ea0655 LG |
1019 | if (!be->dai_link->no_pcm) |
1020 | continue; | |
1021 | ||
01d7584c LG |
1022 | if (be->cpu_dai->capture_widget == widget || |
1023 | be->codec_dai->capture_widget == widget) | |
1024 | return be; | |
1025 | } | |
1026 | } | |
1027 | ||
103d84a3 | 1028 | dev_err(card->dev, "ASoC: can't get %s BE for %s\n", |
01d7584c LG |
1029 | stream ? "capture" : "playback", widget->name); |
1030 | return NULL; | |
1031 | } | |
1032 | ||
1033 | static inline struct snd_soc_dapm_widget * | |
37018610 | 1034 | dai_get_widget(struct snd_soc_dai *dai, int stream) |
01d7584c LG |
1035 | { |
1036 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
37018610 | 1037 | return dai->playback_widget; |
01d7584c | 1038 | else |
37018610 | 1039 | return dai->capture_widget; |
01d7584c LG |
1040 | } |
1041 | ||
1042 | static int widget_in_list(struct snd_soc_dapm_widget_list *list, | |
1043 | struct snd_soc_dapm_widget *widget) | |
1044 | { | |
1045 | int i; | |
1046 | ||
1047 | for (i = 0; i < list->num_widgets; i++) { | |
1048 | if (widget == list->widgets[i]) | |
1049 | return 1; | |
1050 | } | |
1051 | ||
1052 | return 0; | |
1053 | } | |
1054 | ||
23607025 | 1055 | int dpcm_path_get(struct snd_soc_pcm_runtime *fe, |
01d7584c LG |
1056 | int stream, struct snd_soc_dapm_widget_list **list_) |
1057 | { | |
1058 | struct snd_soc_dai *cpu_dai = fe->cpu_dai; | |
1059 | struct snd_soc_dapm_widget_list *list; | |
1060 | int paths; | |
1061 | ||
1062 | list = kzalloc(sizeof(struct snd_soc_dapm_widget_list) + | |
1063 | sizeof(struct snd_soc_dapm_widget *), GFP_KERNEL); | |
1064 | if (list == NULL) | |
1065 | return -ENOMEM; | |
1066 | ||
1067 | /* get number of valid DAI paths and their widgets */ | |
1068 | paths = snd_soc_dapm_dai_get_connected_widgets(cpu_dai, stream, &list); | |
1069 | ||
103d84a3 | 1070 | dev_dbg(fe->dev, "ASoC: found %d audio %s paths\n", paths, |
01d7584c LG |
1071 | stream ? "capture" : "playback"); |
1072 | ||
1073 | *list_ = list; | |
1074 | return paths; | |
1075 | } | |
1076 | ||
01d7584c LG |
1077 | static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream, |
1078 | struct snd_soc_dapm_widget_list **list_) | |
1079 | { | |
1080 | struct snd_soc_dpcm *dpcm; | |
1081 | struct snd_soc_dapm_widget_list *list = *list_; | |
1082 | struct snd_soc_dapm_widget *widget; | |
1083 | int prune = 0; | |
1084 | ||
1085 | /* Destroy any old FE <--> BE connections */ | |
1086 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1087 | ||
1088 | /* is there a valid CPU DAI widget for this BE */ | |
37018610 | 1089 | widget = dai_get_widget(dpcm->be->cpu_dai, stream); |
01d7584c LG |
1090 | |
1091 | /* prune the BE if it's no longer in our active list */ | |
1092 | if (widget && widget_in_list(list, widget)) | |
1093 | continue; | |
1094 | ||
1095 | /* is there a valid CODEC DAI widget for this BE */ | |
37018610 | 1096 | widget = dai_get_widget(dpcm->be->codec_dai, stream); |
01d7584c LG |
1097 | |
1098 | /* prune the BE if it's no longer in our active list */ | |
1099 | if (widget && widget_in_list(list, widget)) | |
1100 | continue; | |
1101 | ||
103d84a3 | 1102 | dev_dbg(fe->dev, "ASoC: pruning %s BE %s for %s\n", |
01d7584c LG |
1103 | stream ? "capture" : "playback", |
1104 | dpcm->be->dai_link->name, fe->dai_link->name); | |
1105 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
1106 | dpcm->be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | |
1107 | prune++; | |
1108 | } | |
1109 | ||
103d84a3 | 1110 | dev_dbg(fe->dev, "ASoC: found %d old BE paths for pruning\n", prune); |
01d7584c LG |
1111 | return prune; |
1112 | } | |
1113 | ||
1114 | static int dpcm_add_paths(struct snd_soc_pcm_runtime *fe, int stream, | |
1115 | struct snd_soc_dapm_widget_list **list_) | |
1116 | { | |
1117 | struct snd_soc_card *card = fe->card; | |
1118 | struct snd_soc_dapm_widget_list *list = *list_; | |
1119 | struct snd_soc_pcm_runtime *be; | |
1120 | int i, new = 0, err; | |
1121 | ||
1122 | /* Create any new FE <--> BE connections */ | |
1123 | for (i = 0; i < list->num_widgets; i++) { | |
1124 | ||
4616274d MB |
1125 | switch (list->widgets[i]->id) { |
1126 | case snd_soc_dapm_dai_in: | |
1127 | case snd_soc_dapm_dai_out: | |
1128 | break; | |
1129 | default: | |
01d7584c | 1130 | continue; |
4616274d | 1131 | } |
01d7584c LG |
1132 | |
1133 | /* is there a valid BE rtd for this widget */ | |
1134 | be = dpcm_get_be(card, list->widgets[i], stream); | |
1135 | if (!be) { | |
103d84a3 | 1136 | dev_err(fe->dev, "ASoC: no BE found for %s\n", |
01d7584c LG |
1137 | list->widgets[i]->name); |
1138 | continue; | |
1139 | } | |
1140 | ||
1141 | /* make sure BE is a real BE */ | |
1142 | if (!be->dai_link->no_pcm) | |
1143 | continue; | |
1144 | ||
1145 | /* don't connect if FE is not running */ | |
23607025 | 1146 | if (!fe->dpcm[stream].runtime && !fe->fe_compr) |
01d7584c LG |
1147 | continue; |
1148 | ||
1149 | /* newly connected FE and BE */ | |
1150 | err = dpcm_be_connect(fe, be, stream); | |
1151 | if (err < 0) { | |
103d84a3 | 1152 | dev_err(fe->dev, "ASoC: can't connect %s\n", |
01d7584c LG |
1153 | list->widgets[i]->name); |
1154 | break; | |
1155 | } else if (err == 0) /* already connected */ | |
1156 | continue; | |
1157 | ||
1158 | /* new */ | |
1159 | be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | |
1160 | new++; | |
1161 | } | |
1162 | ||
103d84a3 | 1163 | dev_dbg(fe->dev, "ASoC: found %d new BE paths\n", new); |
01d7584c LG |
1164 | return new; |
1165 | } | |
1166 | ||
1167 | /* | |
1168 | * Find the corresponding BE DAIs that source or sink audio to this | |
1169 | * FE substream. | |
1170 | */ | |
23607025 | 1171 | int dpcm_process_paths(struct snd_soc_pcm_runtime *fe, |
01d7584c LG |
1172 | int stream, struct snd_soc_dapm_widget_list **list, int new) |
1173 | { | |
1174 | if (new) | |
1175 | return dpcm_add_paths(fe, stream, list); | |
1176 | else | |
1177 | return dpcm_prune_paths(fe, stream, list); | |
1178 | } | |
1179 | ||
23607025 | 1180 | void dpcm_clear_pending_state(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1181 | { |
1182 | struct snd_soc_dpcm *dpcm; | |
1183 | ||
1184 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
1185 | dpcm->be->dpcm[stream].runtime_update = | |
1186 | SND_SOC_DPCM_UPDATE_NO; | |
1187 | } | |
1188 | ||
1189 | static void dpcm_be_dai_startup_unwind(struct snd_soc_pcm_runtime *fe, | |
1190 | int stream) | |
1191 | { | |
1192 | struct snd_soc_dpcm *dpcm; | |
1193 | ||
1194 | /* disable any enabled and non active backends */ | |
1195 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1196 | ||
1197 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1198 | struct snd_pcm_substream *be_substream = | |
1199 | snd_soc_dpcm_get_substream(be, stream); | |
1200 | ||
1201 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1202 | dev_err(be->dev, "ASoC: no users %s at close - state %d\n", |
01d7584c LG |
1203 | stream ? "capture" : "playback", |
1204 | be->dpcm[stream].state); | |
1205 | ||
1206 | if (--be->dpcm[stream].users != 0) | |
1207 | continue; | |
1208 | ||
1209 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) | |
1210 | continue; | |
1211 | ||
1212 | soc_pcm_close(be_substream); | |
1213 | be_substream->runtime = NULL; | |
1214 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1215 | } | |
1216 | } | |
1217 | ||
23607025 | 1218 | int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1219 | { |
1220 | struct snd_soc_dpcm *dpcm; | |
1221 | int err, count = 0; | |
1222 | ||
1223 | /* only startup BE DAIs that are either sinks or sources to this FE DAI */ | |
1224 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1225 | ||
1226 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1227 | struct snd_pcm_substream *be_substream = | |
1228 | snd_soc_dpcm_get_substream(be, stream); | |
1229 | ||
2062b4c5 RKAL |
1230 | if (!be_substream) { |
1231 | dev_err(be->dev, "ASoC: no backend %s stream\n", | |
1232 | stream ? "capture" : "playback"); | |
1233 | continue; | |
1234 | } | |
1235 | ||
01d7584c LG |
1236 | /* is this op for this BE ? */ |
1237 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1238 | continue; | |
1239 | ||
1240 | /* first time the dpcm is open ? */ | |
1241 | if (be->dpcm[stream].users == DPCM_MAX_BE_USERS) | |
103d84a3 | 1242 | dev_err(be->dev, "ASoC: too many users %s at open %d\n", |
01d7584c LG |
1243 | stream ? "capture" : "playback", |
1244 | be->dpcm[stream].state); | |
1245 | ||
1246 | if (be->dpcm[stream].users++ != 0) | |
1247 | continue; | |
1248 | ||
1249 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_NEW) && | |
1250 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_CLOSE)) | |
1251 | continue; | |
1252 | ||
2062b4c5 RKAL |
1253 | dev_dbg(be->dev, "ASoC: open %s BE %s\n", |
1254 | stream ? "capture" : "playback", be->dai_link->name); | |
01d7584c LG |
1255 | |
1256 | be_substream->runtime = be->dpcm[stream].runtime; | |
1257 | err = soc_pcm_open(be_substream); | |
1258 | if (err < 0) { | |
103d84a3 | 1259 | dev_err(be->dev, "ASoC: BE open failed %d\n", err); |
01d7584c LG |
1260 | be->dpcm[stream].users--; |
1261 | if (be->dpcm[stream].users < 0) | |
103d84a3 | 1262 | dev_err(be->dev, "ASoC: no users %s at unwind %d\n", |
01d7584c LG |
1263 | stream ? "capture" : "playback", |
1264 | be->dpcm[stream].state); | |
1265 | ||
1266 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1267 | goto unwind; | |
1268 | } | |
1269 | ||
1270 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
1271 | count++; | |
1272 | } | |
1273 | ||
1274 | return count; | |
1275 | ||
1276 | unwind: | |
1277 | /* disable any enabled and non active backends */ | |
1278 | list_for_each_entry_continue_reverse(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1279 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1280 | struct snd_pcm_substream *be_substream = | |
1281 | snd_soc_dpcm_get_substream(be, stream); | |
1282 | ||
1283 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1284 | continue; | |
1285 | ||
1286 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1287 | dev_err(be->dev, "ASoC: no users %s at close %d\n", |
01d7584c LG |
1288 | stream ? "capture" : "playback", |
1289 | be->dpcm[stream].state); | |
1290 | ||
1291 | if (--be->dpcm[stream].users != 0) | |
1292 | continue; | |
1293 | ||
1294 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) | |
1295 | continue; | |
1296 | ||
1297 | soc_pcm_close(be_substream); | |
1298 | be_substream->runtime = NULL; | |
1299 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1300 | } | |
1301 | ||
1302 | return err; | |
1303 | } | |
1304 | ||
08ae9b45 LPC |
1305 | static void dpcm_init_runtime_hw(struct snd_pcm_runtime *runtime, |
1306 | struct snd_soc_pcm_stream *stream) | |
1307 | { | |
1308 | runtime->hw.rate_min = stream->rate_min; | |
1309 | runtime->hw.rate_max = stream->rate_max; | |
1310 | runtime->hw.channels_min = stream->channels_min; | |
1311 | runtime->hw.channels_max = stream->channels_max; | |
002220a9 LPC |
1312 | if (runtime->hw.formats) |
1313 | runtime->hw.formats &= stream->formats; | |
1314 | else | |
1315 | runtime->hw.formats = stream->formats; | |
08ae9b45 LPC |
1316 | runtime->hw.rates = stream->rates; |
1317 | } | |
1318 | ||
45c0a188 | 1319 | static void dpcm_set_fe_runtime(struct snd_pcm_substream *substream) |
01d7584c LG |
1320 | { |
1321 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1322 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1323 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1324 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
1325 | ||
08ae9b45 LPC |
1326 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
1327 | dpcm_init_runtime_hw(runtime, &cpu_dai_drv->playback); | |
1328 | else | |
1329 | dpcm_init_runtime_hw(runtime, &cpu_dai_drv->capture); | |
01d7584c LG |
1330 | } |
1331 | ||
1332 | static int dpcm_fe_dai_startup(struct snd_pcm_substream *fe_substream) | |
1333 | { | |
1334 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
1335 | struct snd_pcm_runtime *runtime = fe_substream->runtime; | |
1336 | int stream = fe_substream->stream, ret = 0; | |
1337 | ||
1338 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
1339 | ||
1340 | ret = dpcm_be_dai_startup(fe, fe_substream->stream); | |
1341 | if (ret < 0) { | |
103d84a3 | 1342 | dev_err(fe->dev,"ASoC: failed to start some BEs %d\n", ret); |
01d7584c LG |
1343 | goto be_err; |
1344 | } | |
1345 | ||
103d84a3 | 1346 | dev_dbg(fe->dev, "ASoC: open FE %s\n", fe->dai_link->name); |
01d7584c LG |
1347 | |
1348 | /* start the DAI frontend */ | |
1349 | ret = soc_pcm_open(fe_substream); | |
1350 | if (ret < 0) { | |
103d84a3 | 1351 | dev_err(fe->dev,"ASoC: failed to start FE %d\n", ret); |
01d7584c LG |
1352 | goto unwind; |
1353 | } | |
1354 | ||
1355 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
1356 | ||
1357 | dpcm_set_fe_runtime(fe_substream); | |
1358 | snd_pcm_limit_hw_rates(runtime); | |
1359 | ||
1360 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
1361 | return 0; | |
1362 | ||
1363 | unwind: | |
1364 | dpcm_be_dai_startup_unwind(fe, fe_substream->stream); | |
1365 | be_err: | |
1366 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
1367 | return ret; | |
1368 | } | |
1369 | ||
23607025 | 1370 | int dpcm_be_dai_shutdown(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1371 | { |
1372 | struct snd_soc_dpcm *dpcm; | |
1373 | ||
1374 | /* only shutdown BEs that are either sinks or sources to this FE DAI */ | |
1375 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1376 | ||
1377 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1378 | struct snd_pcm_substream *be_substream = | |
1379 | snd_soc_dpcm_get_substream(be, stream); | |
1380 | ||
1381 | /* is this op for this BE ? */ | |
1382 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1383 | continue; | |
1384 | ||
1385 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1386 | dev_err(be->dev, "ASoC: no users %s at close - state %d\n", |
01d7584c LG |
1387 | stream ? "capture" : "playback", |
1388 | be->dpcm[stream].state); | |
1389 | ||
1390 | if (--be->dpcm[stream].users != 0) | |
1391 | continue; | |
1392 | ||
1393 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
1394 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN)) | |
1395 | continue; | |
1396 | ||
103d84a3 | 1397 | dev_dbg(be->dev, "ASoC: close BE %s\n", |
01d7584c LG |
1398 | dpcm->fe->dai_link->name); |
1399 | ||
1400 | soc_pcm_close(be_substream); | |
1401 | be_substream->runtime = NULL; | |
1402 | ||
1403 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1404 | } | |
1405 | return 0; | |
1406 | } | |
1407 | ||
1408 | static int dpcm_fe_dai_shutdown(struct snd_pcm_substream *substream) | |
1409 | { | |
1410 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1411 | int stream = substream->stream; | |
1412 | ||
1413 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
1414 | ||
1415 | /* shutdown the BEs */ | |
1416 | dpcm_be_dai_shutdown(fe, substream->stream); | |
1417 | ||
103d84a3 | 1418 | dev_dbg(fe->dev, "ASoC: close FE %s\n", fe->dai_link->name); |
01d7584c LG |
1419 | |
1420 | /* now shutdown the frontend */ | |
1421 | soc_pcm_close(substream); | |
1422 | ||
1423 | /* run the stream event for each BE */ | |
1424 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP); | |
1425 | ||
1426 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1427 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
1428 | return 0; | |
1429 | } | |
1430 | ||
23607025 | 1431 | int dpcm_be_dai_hw_free(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1432 | { |
1433 | struct snd_soc_dpcm *dpcm; | |
1434 | ||
1435 | /* only hw_params backends that are either sinks or sources | |
1436 | * to this frontend DAI */ | |
1437 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1438 | ||
1439 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1440 | struct snd_pcm_substream *be_substream = | |
1441 | snd_soc_dpcm_get_substream(be, stream); | |
1442 | ||
1443 | /* is this op for this BE ? */ | |
1444 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1445 | continue; | |
1446 | ||
1447 | /* only free hw when no longer used - check all FEs */ | |
1448 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
1449 | continue; | |
1450 | ||
1451 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
1452 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && | |
1453 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
08b27848 | 1454 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED) && |
01d7584c LG |
1455 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) |
1456 | continue; | |
1457 | ||
103d84a3 | 1458 | dev_dbg(be->dev, "ASoC: hw_free BE %s\n", |
01d7584c LG |
1459 | dpcm->fe->dai_link->name); |
1460 | ||
1461 | soc_pcm_hw_free(be_substream); | |
1462 | ||
1463 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
1464 | } | |
1465 | ||
1466 | return 0; | |
1467 | } | |
1468 | ||
45c0a188 | 1469 | static int dpcm_fe_dai_hw_free(struct snd_pcm_substream *substream) |
01d7584c LG |
1470 | { |
1471 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1472 | int err, stream = substream->stream; | |
1473 | ||
1474 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
1475 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
1476 | ||
103d84a3 | 1477 | dev_dbg(fe->dev, "ASoC: hw_free FE %s\n", fe->dai_link->name); |
01d7584c LG |
1478 | |
1479 | /* call hw_free on the frontend */ | |
1480 | err = soc_pcm_hw_free(substream); | |
1481 | if (err < 0) | |
103d84a3 | 1482 | dev_err(fe->dev,"ASoC: hw_free FE %s failed\n", |
01d7584c LG |
1483 | fe->dai_link->name); |
1484 | ||
1485 | /* only hw_params backends that are either sinks or sources | |
1486 | * to this frontend DAI */ | |
1487 | err = dpcm_be_dai_hw_free(fe, stream); | |
1488 | ||
1489 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
1490 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
1491 | ||
1492 | mutex_unlock(&fe->card->mutex); | |
1493 | return 0; | |
1494 | } | |
1495 | ||
23607025 | 1496 | int dpcm_be_dai_hw_params(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1497 | { |
1498 | struct snd_soc_dpcm *dpcm; | |
1499 | int ret; | |
1500 | ||
1501 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1502 | ||
1503 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1504 | struct snd_pcm_substream *be_substream = | |
1505 | snd_soc_dpcm_get_substream(be, stream); | |
1506 | ||
1507 | /* is this op for this BE ? */ | |
1508 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1509 | continue; | |
1510 | ||
1511 | /* only allow hw_params() if no connected FEs are running */ | |
1512 | if (!snd_soc_dpcm_can_be_params(fe, be, stream)) | |
1513 | continue; | |
1514 | ||
1515 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) && | |
1516 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
1517 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE)) | |
1518 | continue; | |
1519 | ||
103d84a3 | 1520 | dev_dbg(be->dev, "ASoC: hw_params BE %s\n", |
01d7584c LG |
1521 | dpcm->fe->dai_link->name); |
1522 | ||
1523 | /* copy params for each dpcm */ | |
1524 | memcpy(&dpcm->hw_params, &fe->dpcm[stream].hw_params, | |
1525 | sizeof(struct snd_pcm_hw_params)); | |
1526 | ||
1527 | /* perform any hw_params fixups */ | |
1528 | if (be->dai_link->be_hw_params_fixup) { | |
1529 | ret = be->dai_link->be_hw_params_fixup(be, | |
1530 | &dpcm->hw_params); | |
1531 | if (ret < 0) { | |
1532 | dev_err(be->dev, | |
103d84a3 | 1533 | "ASoC: hw_params BE fixup failed %d\n", |
01d7584c LG |
1534 | ret); |
1535 | goto unwind; | |
1536 | } | |
1537 | } | |
1538 | ||
1539 | ret = soc_pcm_hw_params(be_substream, &dpcm->hw_params); | |
1540 | if (ret < 0) { | |
1541 | dev_err(dpcm->be->dev, | |
103d84a3 | 1542 | "ASoC: hw_params BE failed %d\n", ret); |
01d7584c LG |
1543 | goto unwind; |
1544 | } | |
1545 | ||
1546 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS; | |
1547 | } | |
1548 | return 0; | |
1549 | ||
1550 | unwind: | |
1551 | /* disable any enabled and non active backends */ | |
1552 | list_for_each_entry_continue_reverse(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1553 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1554 | struct snd_pcm_substream *be_substream = | |
1555 | snd_soc_dpcm_get_substream(be, stream); | |
1556 | ||
1557 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1558 | continue; | |
1559 | ||
1560 | /* only allow hw_free() if no connected FEs are running */ | |
1561 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
1562 | continue; | |
1563 | ||
1564 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) && | |
1565 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
1566 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
1567 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
1568 | continue; | |
1569 | ||
1570 | soc_pcm_hw_free(be_substream); | |
1571 | } | |
1572 | ||
1573 | return ret; | |
1574 | } | |
1575 | ||
45c0a188 MB |
1576 | static int dpcm_fe_dai_hw_params(struct snd_pcm_substream *substream, |
1577 | struct snd_pcm_hw_params *params) | |
01d7584c LG |
1578 | { |
1579 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1580 | int ret, stream = substream->stream; | |
1581 | ||
1582 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
1583 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
1584 | ||
1585 | memcpy(&fe->dpcm[substream->stream].hw_params, params, | |
1586 | sizeof(struct snd_pcm_hw_params)); | |
1587 | ret = dpcm_be_dai_hw_params(fe, substream->stream); | |
1588 | if (ret < 0) { | |
103d84a3 | 1589 | dev_err(fe->dev,"ASoC: hw_params BE failed %d\n", ret); |
01d7584c LG |
1590 | goto out; |
1591 | } | |
1592 | ||
103d84a3 | 1593 | dev_dbg(fe->dev, "ASoC: hw_params FE %s rate %d chan %x fmt %d\n", |
01d7584c LG |
1594 | fe->dai_link->name, params_rate(params), |
1595 | params_channels(params), params_format(params)); | |
1596 | ||
1597 | /* call hw_params on the frontend */ | |
1598 | ret = soc_pcm_hw_params(substream, params); | |
1599 | if (ret < 0) { | |
103d84a3 | 1600 | dev_err(fe->dev,"ASoC: hw_params FE failed %d\n", ret); |
01d7584c LG |
1601 | dpcm_be_dai_hw_free(fe, stream); |
1602 | } else | |
1603 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS; | |
1604 | ||
1605 | out: | |
1606 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
1607 | mutex_unlock(&fe->card->mutex); | |
1608 | return ret; | |
1609 | } | |
1610 | ||
1611 | static int dpcm_do_trigger(struct snd_soc_dpcm *dpcm, | |
1612 | struct snd_pcm_substream *substream, int cmd) | |
1613 | { | |
1614 | int ret; | |
1615 | ||
103d84a3 | 1616 | dev_dbg(dpcm->be->dev, "ASoC: trigger BE %s cmd %d\n", |
01d7584c LG |
1617 | dpcm->fe->dai_link->name, cmd); |
1618 | ||
1619 | ret = soc_pcm_trigger(substream, cmd); | |
1620 | if (ret < 0) | |
103d84a3 | 1621 | dev_err(dpcm->be->dev,"ASoC: trigger BE failed %d\n", ret); |
01d7584c LG |
1622 | |
1623 | return ret; | |
1624 | } | |
1625 | ||
23607025 | 1626 | int dpcm_be_dai_trigger(struct snd_soc_pcm_runtime *fe, int stream, |
45c0a188 | 1627 | int cmd) |
01d7584c LG |
1628 | { |
1629 | struct snd_soc_dpcm *dpcm; | |
1630 | int ret = 0; | |
1631 | ||
1632 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1633 | ||
1634 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1635 | struct snd_pcm_substream *be_substream = | |
1636 | snd_soc_dpcm_get_substream(be, stream); | |
1637 | ||
1638 | /* is this op for this BE ? */ | |
1639 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1640 | continue; | |
1641 | ||
1642 | switch (cmd) { | |
1643 | case SNDRV_PCM_TRIGGER_START: | |
1644 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && | |
1645 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
1646 | continue; | |
1647 | ||
1648 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
1649 | if (ret) | |
1650 | return ret; | |
1651 | ||
1652 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
1653 | break; | |
1654 | case SNDRV_PCM_TRIGGER_RESUME: | |
1655 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND)) | |
1656 | continue; | |
1657 | ||
1658 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
1659 | if (ret) | |
1660 | return ret; | |
1661 | ||
1662 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
1663 | break; | |
1664 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
1665 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED)) | |
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_START; | |
1673 | break; | |
1674 | case SNDRV_PCM_TRIGGER_STOP: | |
1675 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
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_STOP; | |
1686 | break; | |
1687 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
868a6ca8 | 1688 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) |
01d7584c LG |
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_SUSPEND; | |
1699 | break; | |
1700 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
1701 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
1702 | continue; | |
1703 | ||
1704 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
1705 | continue; | |
1706 | ||
1707 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
1708 | if (ret) | |
1709 | return ret; | |
1710 | ||
1711 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED; | |
1712 | break; | |
1713 | } | |
1714 | } | |
1715 | ||
1716 | return ret; | |
1717 | } | |
1718 | EXPORT_SYMBOL_GPL(dpcm_be_dai_trigger); | |
1719 | ||
45c0a188 | 1720 | static int dpcm_fe_dai_trigger(struct snd_pcm_substream *substream, int cmd) |
01d7584c LG |
1721 | { |
1722 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1723 | int stream = substream->stream, ret; | |
1724 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; | |
1725 | ||
1726 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
1727 | ||
1728 | switch (trigger) { | |
1729 | case SND_SOC_DPCM_TRIGGER_PRE: | |
1730 | /* call trigger on the frontend before the backend. */ | |
1731 | ||
103d84a3 | 1732 | dev_dbg(fe->dev, "ASoC: pre trigger FE %s cmd %d\n", |
01d7584c LG |
1733 | fe->dai_link->name, cmd); |
1734 | ||
1735 | ret = soc_pcm_trigger(substream, cmd); | |
1736 | if (ret < 0) { | |
103d84a3 | 1737 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
01d7584c LG |
1738 | goto out; |
1739 | } | |
1740 | ||
1741 | ret = dpcm_be_dai_trigger(fe, substream->stream, cmd); | |
1742 | break; | |
1743 | case SND_SOC_DPCM_TRIGGER_POST: | |
1744 | /* call trigger on the frontend after the backend. */ | |
1745 | ||
1746 | ret = dpcm_be_dai_trigger(fe, substream->stream, cmd); | |
1747 | if (ret < 0) { | |
103d84a3 | 1748 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
01d7584c LG |
1749 | goto out; |
1750 | } | |
1751 | ||
103d84a3 | 1752 | dev_dbg(fe->dev, "ASoC: post trigger FE %s cmd %d\n", |
01d7584c LG |
1753 | fe->dai_link->name, cmd); |
1754 | ||
1755 | ret = soc_pcm_trigger(substream, cmd); | |
1756 | break; | |
07bf84aa LG |
1757 | case SND_SOC_DPCM_TRIGGER_BESPOKE: |
1758 | /* bespoke trigger() - handles both FE and BEs */ | |
1759 | ||
103d84a3 | 1760 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd %d\n", |
07bf84aa LG |
1761 | fe->dai_link->name, cmd); |
1762 | ||
1763 | ret = soc_pcm_bespoke_trigger(substream, cmd); | |
1764 | if (ret < 0) { | |
103d84a3 | 1765 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
07bf84aa LG |
1766 | goto out; |
1767 | } | |
1768 | break; | |
01d7584c | 1769 | default: |
103d84a3 | 1770 | dev_err(fe->dev, "ASoC: invalid trigger cmd %d for %s\n", cmd, |
01d7584c LG |
1771 | fe->dai_link->name); |
1772 | ret = -EINVAL; | |
1773 | goto out; | |
1774 | } | |
1775 | ||
1776 | switch (cmd) { | |
1777 | case SNDRV_PCM_TRIGGER_START: | |
1778 | case SNDRV_PCM_TRIGGER_RESUME: | |
1779 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
1780 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
1781 | break; | |
1782 | case SNDRV_PCM_TRIGGER_STOP: | |
1783 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
1784 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
1785 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; | |
1786 | break; | |
1787 | } | |
1788 | ||
1789 | out: | |
1790 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
1791 | return ret; | |
1792 | } | |
1793 | ||
23607025 | 1794 | int dpcm_be_dai_prepare(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1795 | { |
1796 | struct snd_soc_dpcm *dpcm; | |
1797 | int ret = 0; | |
1798 | ||
1799 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1800 | ||
1801 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1802 | struct snd_pcm_substream *be_substream = | |
1803 | snd_soc_dpcm_get_substream(be, stream); | |
1804 | ||
1805 | /* is this op for this BE ? */ | |
1806 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1807 | continue; | |
1808 | ||
1809 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
1810 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
1811 | continue; | |
1812 | ||
103d84a3 | 1813 | dev_dbg(be->dev, "ASoC: prepare BE %s\n", |
01d7584c LG |
1814 | dpcm->fe->dai_link->name); |
1815 | ||
1816 | ret = soc_pcm_prepare(be_substream); | |
1817 | if (ret < 0) { | |
103d84a3 | 1818 | dev_err(be->dev, "ASoC: backend prepare failed %d\n", |
01d7584c LG |
1819 | ret); |
1820 | break; | |
1821 | } | |
1822 | ||
1823 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | |
1824 | } | |
1825 | return ret; | |
1826 | } | |
1827 | ||
45c0a188 | 1828 | static int dpcm_fe_dai_prepare(struct snd_pcm_substream *substream) |
01d7584c LG |
1829 | { |
1830 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1831 | int stream = substream->stream, ret = 0; | |
1832 | ||
1833 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
1834 | ||
103d84a3 | 1835 | dev_dbg(fe->dev, "ASoC: prepare FE %s\n", fe->dai_link->name); |
01d7584c LG |
1836 | |
1837 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
1838 | ||
1839 | /* there is no point preparing this FE if there are no BEs */ | |
1840 | if (list_empty(&fe->dpcm[stream].be_clients)) { | |
103d84a3 | 1841 | dev_err(fe->dev, "ASoC: no backend DAIs enabled for %s\n", |
01d7584c LG |
1842 | fe->dai_link->name); |
1843 | ret = -EINVAL; | |
1844 | goto out; | |
1845 | } | |
1846 | ||
1847 | ret = dpcm_be_dai_prepare(fe, substream->stream); | |
1848 | if (ret < 0) | |
1849 | goto out; | |
1850 | ||
1851 | /* call prepare on the frontend */ | |
1852 | ret = soc_pcm_prepare(substream); | |
1853 | if (ret < 0) { | |
103d84a3 | 1854 | dev_err(fe->dev,"ASoC: prepare FE %s failed\n", |
01d7584c LG |
1855 | fe->dai_link->name); |
1856 | goto out; | |
1857 | } | |
1858 | ||
1859 | /* run the stream event for each BE */ | |
1860 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START); | |
1861 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | |
1862 | ||
1863 | out: | |
1864 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
1865 | mutex_unlock(&fe->card->mutex); | |
1866 | ||
1867 | return ret; | |
1868 | } | |
1869 | ||
be3f3f2c LG |
1870 | static int soc_pcm_ioctl(struct snd_pcm_substream *substream, |
1871 | unsigned int cmd, void *arg) | |
1872 | { | |
1873 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1874 | struct snd_soc_platform *platform = rtd->platform; | |
1875 | ||
c5914b0a | 1876 | if (platform->driver->ops && platform->driver->ops->ioctl) |
be3f3f2c LG |
1877 | return platform->driver->ops->ioctl(substream, cmd, arg); |
1878 | return snd_pcm_lib_ioctl(substream, cmd, arg); | |
1879 | } | |
1880 | ||
618dae11 LG |
1881 | static int dpcm_run_update_shutdown(struct snd_soc_pcm_runtime *fe, int stream) |
1882 | { | |
07bf84aa LG |
1883 | struct snd_pcm_substream *substream = |
1884 | snd_soc_dpcm_get_substream(fe, stream); | |
1885 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; | |
618dae11 LG |
1886 | int err; |
1887 | ||
103d84a3 | 1888 | dev_dbg(fe->dev, "ASoC: runtime %s close on FE %s\n", |
618dae11 LG |
1889 | stream ? "capture" : "playback", fe->dai_link->name); |
1890 | ||
07bf84aa LG |
1891 | if (trigger == SND_SOC_DPCM_TRIGGER_BESPOKE) { |
1892 | /* call bespoke trigger - FE takes care of all BE triggers */ | |
103d84a3 | 1893 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd stop\n", |
07bf84aa LG |
1894 | fe->dai_link->name); |
1895 | ||
1896 | err = soc_pcm_bespoke_trigger(substream, SNDRV_PCM_TRIGGER_STOP); | |
1897 | if (err < 0) | |
103d84a3 | 1898 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", err); |
07bf84aa | 1899 | } else { |
103d84a3 | 1900 | dev_dbg(fe->dev, "ASoC: trigger FE %s cmd stop\n", |
07bf84aa LG |
1901 | fe->dai_link->name); |
1902 | ||
1903 | err = dpcm_be_dai_trigger(fe, stream, SNDRV_PCM_TRIGGER_STOP); | |
1904 | if (err < 0) | |
103d84a3 | 1905 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", err); |
07bf84aa | 1906 | } |
618dae11 LG |
1907 | |
1908 | err = dpcm_be_dai_hw_free(fe, stream); | |
1909 | if (err < 0) | |
103d84a3 | 1910 | dev_err(fe->dev,"ASoC: hw_free FE failed %d\n", err); |
618dae11 LG |
1911 | |
1912 | err = dpcm_be_dai_shutdown(fe, stream); | |
1913 | if (err < 0) | |
103d84a3 | 1914 | dev_err(fe->dev,"ASoC: shutdown FE failed %d\n", err); |
618dae11 LG |
1915 | |
1916 | /* run the stream event for each BE */ | |
1917 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_NOP); | |
1918 | ||
1919 | return 0; | |
1920 | } | |
1921 | ||
1922 | static int dpcm_run_update_startup(struct snd_soc_pcm_runtime *fe, int stream) | |
1923 | { | |
07bf84aa LG |
1924 | struct snd_pcm_substream *substream = |
1925 | snd_soc_dpcm_get_substream(fe, stream); | |
618dae11 | 1926 | struct snd_soc_dpcm *dpcm; |
07bf84aa | 1927 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; |
618dae11 LG |
1928 | int ret; |
1929 | ||
103d84a3 | 1930 | dev_dbg(fe->dev, "ASoC: runtime %s open on FE %s\n", |
618dae11 LG |
1931 | stream ? "capture" : "playback", fe->dai_link->name); |
1932 | ||
1933 | /* Only start the BE if the FE is ready */ | |
1934 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_FREE || | |
1935 | fe->dpcm[stream].state == SND_SOC_DPCM_STATE_CLOSE) | |
1936 | return -EINVAL; | |
1937 | ||
1938 | /* startup must always be called for new BEs */ | |
1939 | ret = dpcm_be_dai_startup(fe, stream); | |
fffc0ca2 | 1940 | if (ret < 0) |
618dae11 | 1941 | goto disconnect; |
618dae11 LG |
1942 | |
1943 | /* keep going if FE state is > open */ | |
1944 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_OPEN) | |
1945 | return 0; | |
01d7584c | 1946 | |
618dae11 | 1947 | ret = dpcm_be_dai_hw_params(fe, stream); |
fffc0ca2 | 1948 | if (ret < 0) |
618dae11 | 1949 | goto close; |
618dae11 LG |
1950 | |
1951 | /* keep going if FE state is > hw_params */ | |
1952 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_PARAMS) | |
1953 | return 0; | |
1954 | ||
1955 | ||
1956 | ret = dpcm_be_dai_prepare(fe, stream); | |
fffc0ca2 | 1957 | if (ret < 0) |
618dae11 | 1958 | goto hw_free; |
618dae11 LG |
1959 | |
1960 | /* run the stream event for each BE */ | |
1961 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_NOP); | |
1962 | ||
1963 | /* keep going if FE state is > prepare */ | |
1964 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_PREPARE || | |
1965 | fe->dpcm[stream].state == SND_SOC_DPCM_STATE_STOP) | |
1966 | return 0; | |
1967 | ||
07bf84aa LG |
1968 | if (trigger == SND_SOC_DPCM_TRIGGER_BESPOKE) { |
1969 | /* call trigger on the frontend - FE takes care of all BE triggers */ | |
103d84a3 | 1970 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd start\n", |
07bf84aa | 1971 | fe->dai_link->name); |
618dae11 | 1972 | |
07bf84aa LG |
1973 | ret = soc_pcm_bespoke_trigger(substream, SNDRV_PCM_TRIGGER_START); |
1974 | if (ret < 0) { | |
103d84a3 | 1975 | dev_err(fe->dev,"ASoC: bespoke trigger FE failed %d\n", ret); |
07bf84aa LG |
1976 | goto hw_free; |
1977 | } | |
1978 | } else { | |
103d84a3 | 1979 | dev_dbg(fe->dev, "ASoC: trigger FE %s cmd start\n", |
07bf84aa LG |
1980 | fe->dai_link->name); |
1981 | ||
1982 | ret = dpcm_be_dai_trigger(fe, stream, | |
1983 | SNDRV_PCM_TRIGGER_START); | |
1984 | if (ret < 0) { | |
103d84a3 | 1985 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
07bf84aa LG |
1986 | goto hw_free; |
1987 | } | |
618dae11 LG |
1988 | } |
1989 | ||
1990 | return 0; | |
1991 | ||
1992 | hw_free: | |
1993 | dpcm_be_dai_hw_free(fe, stream); | |
1994 | close: | |
1995 | dpcm_be_dai_shutdown(fe, stream); | |
1996 | disconnect: | |
1997 | /* disconnect any non started BEs */ | |
1998 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1999 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2000 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
2001 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
2002 | } | |
2003 | ||
2004 | return ret; | |
2005 | } | |
2006 | ||
2007 | static int dpcm_run_new_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_startup(fe, stream); | |
2013 | if (ret < 0) | |
103d84a3 | 2014 | dev_err(fe->dev, "ASoC: failed to startup some BEs\n"); |
618dae11 LG |
2015 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; |
2016 | ||
2017 | return ret; | |
2018 | } | |
2019 | ||
2020 | static int dpcm_run_old_update(struct snd_soc_pcm_runtime *fe, int stream) | |
2021 | { | |
2022 | int ret; | |
2023 | ||
2024 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | |
2025 | ret = dpcm_run_update_shutdown(fe, stream); | |
2026 | if (ret < 0) | |
103d84a3 | 2027 | dev_err(fe->dev, "ASoC: failed to shutdown some BEs\n"); |
618dae11 LG |
2028 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; |
2029 | ||
2030 | return ret; | |
2031 | } | |
2032 | ||
2033 | /* Called by DAPM mixer/mux changes to update audio routing between PCMs and | |
2034 | * any DAI links. | |
2035 | */ | |
c3f48ae6 | 2036 | int soc_dpcm_runtime_update(struct snd_soc_card *card) |
618dae11 | 2037 | { |
618dae11 LG |
2038 | int i, old, new, paths; |
2039 | ||
618dae11 LG |
2040 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_RUNTIME); |
2041 | for (i = 0; i < card->num_rtd; i++) { | |
2042 | struct snd_soc_dapm_widget_list *list; | |
2043 | struct snd_soc_pcm_runtime *fe = &card->rtd[i]; | |
2044 | ||
2045 | /* make sure link is FE */ | |
2046 | if (!fe->dai_link->dynamic) | |
2047 | continue; | |
2048 | ||
2049 | /* only check active links */ | |
2050 | if (!fe->cpu_dai->active) | |
2051 | continue; | |
2052 | ||
2053 | /* DAPM sync will call this to update DSP paths */ | |
103d84a3 | 2054 | dev_dbg(fe->dev, "ASoC: DPCM runtime update for FE %s\n", |
618dae11 LG |
2055 | fe->dai_link->name); |
2056 | ||
2057 | /* skip if FE doesn't have playback capability */ | |
2058 | if (!fe->cpu_dai->driver->playback.channels_min) | |
2059 | goto capture; | |
2060 | ||
2061 | paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_PLAYBACK, &list); | |
2062 | if (paths < 0) { | |
103d84a3 | 2063 | dev_warn(fe->dev, "ASoC: %s no valid %s path\n", |
618dae11 LG |
2064 | fe->dai_link->name, "playback"); |
2065 | mutex_unlock(&card->mutex); | |
2066 | return paths; | |
2067 | } | |
2068 | ||
2069 | /* update any new playback paths */ | |
2070 | new = dpcm_process_paths(fe, SNDRV_PCM_STREAM_PLAYBACK, &list, 1); | |
2071 | if (new) { | |
2072 | dpcm_run_new_update(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2073 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2074 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2075 | } | |
2076 | ||
2077 | /* update any old playback paths */ | |
2078 | old = dpcm_process_paths(fe, SNDRV_PCM_STREAM_PLAYBACK, &list, 0); | |
2079 | if (old) { | |
2080 | dpcm_run_old_update(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2081 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2082 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2083 | } | |
2084 | ||
2085 | capture: | |
2086 | /* skip if FE doesn't have capture capability */ | |
2087 | if (!fe->cpu_dai->driver->capture.channels_min) | |
2088 | continue; | |
2089 | ||
2090 | paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_CAPTURE, &list); | |
2091 | if (paths < 0) { | |
103d84a3 | 2092 | dev_warn(fe->dev, "ASoC: %s no valid %s path\n", |
618dae11 LG |
2093 | fe->dai_link->name, "capture"); |
2094 | mutex_unlock(&card->mutex); | |
2095 | return paths; | |
2096 | } | |
2097 | ||
2098 | /* update any new capture paths */ | |
2099 | new = dpcm_process_paths(fe, SNDRV_PCM_STREAM_CAPTURE, &list, 1); | |
2100 | if (new) { | |
2101 | dpcm_run_new_update(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2102 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2103 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2104 | } | |
2105 | ||
2106 | /* update any old capture paths */ | |
2107 | old = dpcm_process_paths(fe, SNDRV_PCM_STREAM_CAPTURE, &list, 0); | |
2108 | if (old) { | |
2109 | dpcm_run_old_update(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2110 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2111 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2112 | } | |
2113 | ||
2114 | dpcm_path_put(&list); | |
2115 | } | |
2116 | ||
2117 | mutex_unlock(&card->mutex); | |
2118 | return 0; | |
2119 | } | |
01d7584c LG |
2120 | int soc_dpcm_be_digital_mute(struct snd_soc_pcm_runtime *fe, int mute) |
2121 | { | |
2122 | struct snd_soc_dpcm *dpcm; | |
2123 | struct list_head *clients = | |
2124 | &fe->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients; | |
2125 | ||
2126 | list_for_each_entry(dpcm, clients, list_be) { | |
2127 | ||
2128 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2129 | struct snd_soc_dai *dai = be->codec_dai; | |
2130 | struct snd_soc_dai_driver *drv = dai->driver; | |
2131 | ||
2132 | if (be->dai_link->ignore_suspend) | |
2133 | continue; | |
2134 | ||
103d84a3 | 2135 | dev_dbg(be->dev, "ASoC: BE digital mute %s\n", be->dai_link->name); |
01d7584c | 2136 | |
c5914b0a MB |
2137 | if (drv->ops && drv->ops->digital_mute && dai->playback_active) |
2138 | drv->ops->digital_mute(dai, mute); | |
01d7584c LG |
2139 | } |
2140 | ||
2141 | return 0; | |
2142 | } | |
2143 | ||
45c0a188 | 2144 | static int dpcm_fe_dai_open(struct snd_pcm_substream *fe_substream) |
01d7584c LG |
2145 | { |
2146 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
2147 | struct snd_soc_dpcm *dpcm; | |
2148 | struct snd_soc_dapm_widget_list *list; | |
2149 | int ret; | |
2150 | int stream = fe_substream->stream; | |
2151 | ||
2152 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2153 | fe->dpcm[stream].runtime = fe_substream->runtime; | |
2154 | ||
2155 | if (dpcm_path_get(fe, stream, &list) <= 0) { | |
103d84a3 | 2156 | dev_dbg(fe->dev, "ASoC: %s no valid %s route\n", |
01d7584c | 2157 | fe->dai_link->name, stream ? "capture" : "playback"); |
01d7584c LG |
2158 | } |
2159 | ||
2160 | /* calculate valid and active FE <-> BE dpcms */ | |
2161 | dpcm_process_paths(fe, stream, &list, 1); | |
2162 | ||
2163 | ret = dpcm_fe_dai_startup(fe_substream); | |
2164 | if (ret < 0) { | |
2165 | /* clean up all links */ | |
2166 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
2167 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
2168 | ||
2169 | dpcm_be_disconnect(fe, stream); | |
2170 | fe->dpcm[stream].runtime = NULL; | |
2171 | } | |
2172 | ||
2173 | dpcm_clear_pending_state(fe, stream); | |
2174 | dpcm_path_put(&list); | |
2175 | mutex_unlock(&fe->card->mutex); | |
2176 | return ret; | |
2177 | } | |
2178 | ||
45c0a188 | 2179 | static int dpcm_fe_dai_close(struct snd_pcm_substream *fe_substream) |
01d7584c LG |
2180 | { |
2181 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
2182 | struct snd_soc_dpcm *dpcm; | |
2183 | int stream = fe_substream->stream, ret; | |
2184 | ||
2185 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2186 | ret = dpcm_fe_dai_shutdown(fe_substream); | |
2187 | ||
2188 | /* mark FE's links ready to prune */ | |
2189 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
2190 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
2191 | ||
2192 | dpcm_be_disconnect(fe, stream); | |
2193 | ||
2194 | fe->dpcm[stream].runtime = NULL; | |
2195 | mutex_unlock(&fe->card->mutex); | |
2196 | return ret; | |
2197 | } | |
2198 | ||
ddee627c LG |
2199 | /* create a new pcm */ |
2200 | int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) | |
2201 | { | |
ddee627c LG |
2202 | struct snd_soc_platform *platform = rtd->platform; |
2203 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
2204 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2205 | struct snd_pcm *pcm; | |
2206 | char new_name[64]; | |
2207 | int ret = 0, playback = 0, capture = 0; | |
2208 | ||
01d7584c | 2209 | if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) { |
1e9de42f LG |
2210 | playback = rtd->dai_link->dpcm_playback; |
2211 | capture = rtd->dai_link->dpcm_capture; | |
01d7584c | 2212 | } else { |
05679092 MB |
2213 | if (codec_dai->driver->playback.channels_min && |
2214 | cpu_dai->driver->playback.channels_min) | |
01d7584c | 2215 | playback = 1; |
05679092 MB |
2216 | if (codec_dai->driver->capture.channels_min && |
2217 | cpu_dai->driver->capture.channels_min) | |
01d7584c LG |
2218 | capture = 1; |
2219 | } | |
2220 | ||
d6bead02 FE |
2221 | if (rtd->dai_link->playback_only) { |
2222 | playback = 1; | |
2223 | capture = 0; | |
2224 | } | |
2225 | ||
2226 | if (rtd->dai_link->capture_only) { | |
2227 | playback = 0; | |
2228 | capture = 1; | |
2229 | } | |
2230 | ||
01d7584c LG |
2231 | /* create the PCM */ |
2232 | if (rtd->dai_link->no_pcm) { | |
2233 | snprintf(new_name, sizeof(new_name), "(%s)", | |
2234 | rtd->dai_link->stream_name); | |
2235 | ||
2236 | ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num, | |
2237 | playback, capture, &pcm); | |
2238 | } else { | |
2239 | if (rtd->dai_link->dynamic) | |
2240 | snprintf(new_name, sizeof(new_name), "%s (*)", | |
2241 | rtd->dai_link->stream_name); | |
2242 | else | |
2243 | snprintf(new_name, sizeof(new_name), "%s %s-%d", | |
2244 | rtd->dai_link->stream_name, codec_dai->name, num); | |
2245 | ||
2246 | ret = snd_pcm_new(rtd->card->snd_card, new_name, num, playback, | |
2247 | capture, &pcm); | |
2248 | } | |
ddee627c | 2249 | if (ret < 0) { |
103d84a3 | 2250 | dev_err(rtd->card->dev, "ASoC: can't create pcm for %s\n", |
5cb9b748 | 2251 | rtd->dai_link->name); |
ddee627c LG |
2252 | return ret; |
2253 | } | |
103d84a3 | 2254 | dev_dbg(rtd->card->dev, "ASoC: registered pcm #%d %s\n",num, new_name); |
ddee627c LG |
2255 | |
2256 | /* DAPM dai link stream work */ | |
2257 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
2258 | ||
2259 | rtd->pcm = pcm; | |
2260 | pcm->private_data = rtd; | |
01d7584c LG |
2261 | |
2262 | if (rtd->dai_link->no_pcm) { | |
2263 | if (playback) | |
2264 | pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd; | |
2265 | if (capture) | |
2266 | pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->private_data = rtd; | |
2267 | goto out; | |
2268 | } | |
2269 | ||
2270 | /* ASoC PCM operations */ | |
2271 | if (rtd->dai_link->dynamic) { | |
2272 | rtd->ops.open = dpcm_fe_dai_open; | |
2273 | rtd->ops.hw_params = dpcm_fe_dai_hw_params; | |
2274 | rtd->ops.prepare = dpcm_fe_dai_prepare; | |
2275 | rtd->ops.trigger = dpcm_fe_dai_trigger; | |
2276 | rtd->ops.hw_free = dpcm_fe_dai_hw_free; | |
2277 | rtd->ops.close = dpcm_fe_dai_close; | |
2278 | rtd->ops.pointer = soc_pcm_pointer; | |
be3f3f2c | 2279 | rtd->ops.ioctl = soc_pcm_ioctl; |
01d7584c LG |
2280 | } else { |
2281 | rtd->ops.open = soc_pcm_open; | |
2282 | rtd->ops.hw_params = soc_pcm_hw_params; | |
2283 | rtd->ops.prepare = soc_pcm_prepare; | |
2284 | rtd->ops.trigger = soc_pcm_trigger; | |
2285 | rtd->ops.hw_free = soc_pcm_hw_free; | |
2286 | rtd->ops.close = soc_pcm_close; | |
2287 | rtd->ops.pointer = soc_pcm_pointer; | |
be3f3f2c | 2288 | rtd->ops.ioctl = soc_pcm_ioctl; |
01d7584c LG |
2289 | } |
2290 | ||
ddee627c | 2291 | if (platform->driver->ops) { |
01d7584c LG |
2292 | rtd->ops.ack = platform->driver->ops->ack; |
2293 | rtd->ops.copy = platform->driver->ops->copy; | |
2294 | rtd->ops.silence = platform->driver->ops->silence; | |
2295 | rtd->ops.page = platform->driver->ops->page; | |
2296 | rtd->ops.mmap = platform->driver->ops->mmap; | |
ddee627c LG |
2297 | } |
2298 | ||
2299 | if (playback) | |
01d7584c | 2300 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &rtd->ops); |
ddee627c LG |
2301 | |
2302 | if (capture) | |
01d7584c | 2303 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &rtd->ops); |
ddee627c LG |
2304 | |
2305 | if (platform->driver->pcm_new) { | |
2306 | ret = platform->driver->pcm_new(rtd); | |
2307 | if (ret < 0) { | |
b1bc7b3c MB |
2308 | dev_err(platform->dev, |
2309 | "ASoC: pcm constructor failed: %d\n", | |
2310 | ret); | |
ddee627c LG |
2311 | return ret; |
2312 | } | |
2313 | } | |
2314 | ||
2315 | pcm->private_free = platform->driver->pcm_free; | |
01d7584c | 2316 | out: |
7cc302d2 | 2317 | dev_info(rtd->card->dev, "%s <-> %s mapping ok\n", codec_dai->name, |
ddee627c LG |
2318 | cpu_dai->name); |
2319 | return ret; | |
2320 | } | |
01d7584c LG |
2321 | |
2322 | /* is the current PCM operation for this FE ? */ | |
2323 | int snd_soc_dpcm_fe_can_update(struct snd_soc_pcm_runtime *fe, int stream) | |
2324 | { | |
2325 | if (fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) | |
2326 | return 1; | |
2327 | return 0; | |
2328 | } | |
2329 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_fe_can_update); | |
2330 | ||
2331 | /* is the current PCM operation for this BE ? */ | |
2332 | int snd_soc_dpcm_be_can_update(struct snd_soc_pcm_runtime *fe, | |
2333 | struct snd_soc_pcm_runtime *be, int stream) | |
2334 | { | |
2335 | if ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) || | |
2336 | ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_BE) && | |
2337 | be->dpcm[stream].runtime_update)) | |
2338 | return 1; | |
2339 | return 0; | |
2340 | } | |
2341 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_can_update); | |
2342 | ||
2343 | /* get the substream for this BE */ | |
2344 | struct snd_pcm_substream * | |
2345 | snd_soc_dpcm_get_substream(struct snd_soc_pcm_runtime *be, int stream) | |
2346 | { | |
2347 | return be->pcm->streams[stream].substream; | |
2348 | } | |
2349 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_get_substream); | |
2350 | ||
2351 | /* get the BE runtime state */ | |
2352 | enum snd_soc_dpcm_state | |
2353 | snd_soc_dpcm_be_get_state(struct snd_soc_pcm_runtime *be, int stream) | |
2354 | { | |
2355 | return be->dpcm[stream].state; | |
2356 | } | |
2357 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_get_state); | |
2358 | ||
2359 | /* set the BE runtime state */ | |
2360 | void snd_soc_dpcm_be_set_state(struct snd_soc_pcm_runtime *be, | |
2361 | int stream, enum snd_soc_dpcm_state state) | |
2362 | { | |
2363 | be->dpcm[stream].state = state; | |
2364 | } | |
2365 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_set_state); | |
2366 | ||
2367 | /* | |
2368 | * We can only hw_free, stop, pause or suspend a BE DAI if any of it's FE | |
2369 | * are not running, paused or suspended for the specified stream direction. | |
2370 | */ | |
2371 | int snd_soc_dpcm_can_be_free_stop(struct snd_soc_pcm_runtime *fe, | |
2372 | struct snd_soc_pcm_runtime *be, int stream) | |
2373 | { | |
2374 | struct snd_soc_dpcm *dpcm; | |
2375 | int state; | |
2376 | ||
2377 | list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { | |
2378 | ||
2379 | if (dpcm->fe == fe) | |
2380 | continue; | |
2381 | ||
2382 | state = dpcm->fe->dpcm[stream].state; | |
2383 | if (state == SND_SOC_DPCM_STATE_START || | |
2384 | state == SND_SOC_DPCM_STATE_PAUSED || | |
2385 | state == SND_SOC_DPCM_STATE_SUSPEND) | |
2386 | return 0; | |
2387 | } | |
2388 | ||
2389 | /* it's safe to free/stop this BE DAI */ | |
2390 | return 1; | |
2391 | } | |
2392 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_free_stop); | |
2393 | ||
2394 | /* | |
2395 | * We can only change hw params a BE DAI if any of it's FE are not prepared, | |
2396 | * running, paused or suspended for the specified stream direction. | |
2397 | */ | |
2398 | int snd_soc_dpcm_can_be_params(struct snd_soc_pcm_runtime *fe, | |
2399 | struct snd_soc_pcm_runtime *be, int stream) | |
2400 | { | |
2401 | struct snd_soc_dpcm *dpcm; | |
2402 | int state; | |
2403 | ||
2404 | list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { | |
2405 | ||
2406 | if (dpcm->fe == fe) | |
2407 | continue; | |
2408 | ||
2409 | state = dpcm->fe->dpcm[stream].state; | |
2410 | if (state == SND_SOC_DPCM_STATE_START || | |
2411 | state == SND_SOC_DPCM_STATE_PAUSED || | |
2412 | state == SND_SOC_DPCM_STATE_SUSPEND || | |
2413 | state == SND_SOC_DPCM_STATE_PREPARE) | |
2414 | return 0; | |
2415 | } | |
2416 | ||
2417 | /* it's safe to change hw_params */ | |
2418 | return 1; | |
2419 | } | |
2420 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_params); | |
f86dcef8 | 2421 | |
07bf84aa LG |
2422 | int snd_soc_platform_trigger(struct snd_pcm_substream *substream, |
2423 | int cmd, struct snd_soc_platform *platform) | |
2424 | { | |
c5914b0a | 2425 | if (platform->driver->ops && platform->driver->ops->trigger) |
07bf84aa LG |
2426 | return platform->driver->ops->trigger(substream, cmd); |
2427 | return 0; | |
2428 | } | |
2429 | EXPORT_SYMBOL_GPL(snd_soc_platform_trigger); | |
2430 | ||
f86dcef8 LG |
2431 | #ifdef CONFIG_DEBUG_FS |
2432 | static char *dpcm_state_string(enum snd_soc_dpcm_state state) | |
2433 | { | |
2434 | switch (state) { | |
2435 | case SND_SOC_DPCM_STATE_NEW: | |
2436 | return "new"; | |
2437 | case SND_SOC_DPCM_STATE_OPEN: | |
2438 | return "open"; | |
2439 | case SND_SOC_DPCM_STATE_HW_PARAMS: | |
2440 | return "hw_params"; | |
2441 | case SND_SOC_DPCM_STATE_PREPARE: | |
2442 | return "prepare"; | |
2443 | case SND_SOC_DPCM_STATE_START: | |
2444 | return "start"; | |
2445 | case SND_SOC_DPCM_STATE_STOP: | |
2446 | return "stop"; | |
2447 | case SND_SOC_DPCM_STATE_SUSPEND: | |
2448 | return "suspend"; | |
2449 | case SND_SOC_DPCM_STATE_PAUSED: | |
2450 | return "paused"; | |
2451 | case SND_SOC_DPCM_STATE_HW_FREE: | |
2452 | return "hw_free"; | |
2453 | case SND_SOC_DPCM_STATE_CLOSE: | |
2454 | return "close"; | |
2455 | } | |
2456 | ||
2457 | return "unknown"; | |
2458 | } | |
2459 | ||
f86dcef8 LG |
2460 | static ssize_t dpcm_show_state(struct snd_soc_pcm_runtime *fe, |
2461 | int stream, char *buf, size_t size) | |
2462 | { | |
2463 | struct snd_pcm_hw_params *params = &fe->dpcm[stream].hw_params; | |
2464 | struct snd_soc_dpcm *dpcm; | |
2465 | ssize_t offset = 0; | |
2466 | ||
2467 | /* FE state */ | |
2468 | offset += snprintf(buf + offset, size - offset, | |
2469 | "[%s - %s]\n", fe->dai_link->name, | |
2470 | stream ? "Capture" : "Playback"); | |
2471 | ||
2472 | offset += snprintf(buf + offset, size - offset, "State: %s\n", | |
2473 | dpcm_state_string(fe->dpcm[stream].state)); | |
2474 | ||
2475 | if ((fe->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) && | |
2476 | (fe->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP)) | |
2477 | offset += snprintf(buf + offset, size - offset, | |
2478 | "Hardware Params: " | |
2479 | "Format = %s, Channels = %d, Rate = %d\n", | |
2480 | snd_pcm_format_name(params_format(params)), | |
2481 | params_channels(params), | |
2482 | params_rate(params)); | |
2483 | ||
2484 | /* BEs state */ | |
2485 | offset += snprintf(buf + offset, size - offset, "Backends:\n"); | |
2486 | ||
2487 | if (list_empty(&fe->dpcm[stream].be_clients)) { | |
2488 | offset += snprintf(buf + offset, size - offset, | |
2489 | " No active DSP links\n"); | |
2490 | goto out; | |
2491 | } | |
2492 | ||
2493 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
2494 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2495 | params = &dpcm->hw_params; | |
2496 | ||
2497 | offset += snprintf(buf + offset, size - offset, | |
2498 | "- %s\n", be->dai_link->name); | |
2499 | ||
2500 | offset += snprintf(buf + offset, size - offset, | |
2501 | " State: %s\n", | |
2502 | dpcm_state_string(be->dpcm[stream].state)); | |
2503 | ||
2504 | if ((be->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) && | |
2505 | (be->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP)) | |
2506 | offset += snprintf(buf + offset, size - offset, | |
2507 | " Hardware Params: " | |
2508 | "Format = %s, Channels = %d, Rate = %d\n", | |
2509 | snd_pcm_format_name(params_format(params)), | |
2510 | params_channels(params), | |
2511 | params_rate(params)); | |
2512 | } | |
2513 | ||
2514 | out: | |
2515 | return offset; | |
2516 | } | |
2517 | ||
2518 | static ssize_t dpcm_state_read_file(struct file *file, char __user *user_buf, | |
2519 | size_t count, loff_t *ppos) | |
2520 | { | |
2521 | struct snd_soc_pcm_runtime *fe = file->private_data; | |
2522 | ssize_t out_count = PAGE_SIZE, offset = 0, ret = 0; | |
2523 | char *buf; | |
2524 | ||
2525 | buf = kmalloc(out_count, GFP_KERNEL); | |
2526 | if (!buf) | |
2527 | return -ENOMEM; | |
2528 | ||
2529 | if (fe->cpu_dai->driver->playback.channels_min) | |
2530 | offset += dpcm_show_state(fe, SNDRV_PCM_STREAM_PLAYBACK, | |
2531 | buf + offset, out_count - offset); | |
2532 | ||
2533 | if (fe->cpu_dai->driver->capture.channels_min) | |
2534 | offset += dpcm_show_state(fe, SNDRV_PCM_STREAM_CAPTURE, | |
2535 | buf + offset, out_count - offset); | |
2536 | ||
f57b8488 | 2537 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, offset); |
f86dcef8 | 2538 | |
f57b8488 LG |
2539 | kfree(buf); |
2540 | return ret; | |
f86dcef8 LG |
2541 | } |
2542 | ||
2543 | static const struct file_operations dpcm_state_fops = { | |
f57b8488 | 2544 | .open = simple_open, |
f86dcef8 LG |
2545 | .read = dpcm_state_read_file, |
2546 | .llseek = default_llseek, | |
2547 | }; | |
2548 | ||
2549 | int soc_dpcm_debugfs_add(struct snd_soc_pcm_runtime *rtd) | |
2550 | { | |
b3bba9a1 MB |
2551 | if (!rtd->dai_link) |
2552 | return 0; | |
2553 | ||
f86dcef8 LG |
2554 | rtd->debugfs_dpcm_root = debugfs_create_dir(rtd->dai_link->name, |
2555 | rtd->card->debugfs_card_root); | |
2556 | if (!rtd->debugfs_dpcm_root) { | |
2557 | dev_dbg(rtd->dev, | |
2558 | "ASoC: Failed to create dpcm debugfs directory %s\n", | |
2559 | rtd->dai_link->name); | |
2560 | return -EINVAL; | |
2561 | } | |
2562 | ||
f57b8488 | 2563 | rtd->debugfs_dpcm_state = debugfs_create_file("state", 0444, |
f86dcef8 LG |
2564 | rtd->debugfs_dpcm_root, |
2565 | rtd, &dpcm_state_fops); | |
2566 | ||
2567 | return 0; | |
2568 | } | |
2569 | #endif |