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; | |
2e5894d7 | 50 | int i; |
24894b76 LPC |
51 | |
52 | lockdep_assert_held(&rtd->pcm_mutex); | |
53 | ||
54 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
55 | cpu_dai->playback_active++; | |
2e5894d7 BC |
56 | for (i = 0; i < rtd->num_codecs; i++) |
57 | rtd->codec_dais[i]->playback_active++; | |
24894b76 LPC |
58 | } else { |
59 | cpu_dai->capture_active++; | |
2e5894d7 BC |
60 | for (i = 0; i < rtd->num_codecs; i++) |
61 | rtd->codec_dais[i]->capture_active++; | |
24894b76 LPC |
62 | } |
63 | ||
64 | cpu_dai->active++; | |
cdde4ccb | 65 | cpu_dai->component->active++; |
2e5894d7 BC |
66 | for (i = 0; i < rtd->num_codecs; i++) { |
67 | rtd->codec_dais[i]->active++; | |
68 | rtd->codec_dais[i]->component->active++; | |
69 | } | |
24894b76 LPC |
70 | } |
71 | ||
72 | /** | |
73 | * snd_soc_runtime_deactivate() - Decrement active count for PCM runtime components | |
74 | * @rtd: ASoC PCM runtime that is deactivated | |
75 | * @stream: Direction of the PCM stream | |
76 | * | |
77 | * Decrements the active count for all the DAIs and components attached to a PCM | |
78 | * runtime. Should typically be called when a stream is closed. | |
79 | * | |
80 | * Must be called with the rtd->pcm_mutex being held | |
81 | */ | |
82 | void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream) | |
83 | { | |
84 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 | 85 | int i; |
24894b76 LPC |
86 | |
87 | lockdep_assert_held(&rtd->pcm_mutex); | |
88 | ||
89 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
90 | cpu_dai->playback_active--; | |
2e5894d7 BC |
91 | for (i = 0; i < rtd->num_codecs; i++) |
92 | rtd->codec_dais[i]->playback_active--; | |
24894b76 LPC |
93 | } else { |
94 | cpu_dai->capture_active--; | |
2e5894d7 BC |
95 | for (i = 0; i < rtd->num_codecs; i++) |
96 | rtd->codec_dais[i]->capture_active--; | |
24894b76 LPC |
97 | } |
98 | ||
99 | cpu_dai->active--; | |
cdde4ccb | 100 | cpu_dai->component->active--; |
2e5894d7 BC |
101 | for (i = 0; i < rtd->num_codecs; i++) { |
102 | rtd->codec_dais[i]->component->active--; | |
103 | rtd->codec_dais[i]->active--; | |
104 | } | |
24894b76 LPC |
105 | } |
106 | ||
208a1589 LPC |
107 | /** |
108 | * snd_soc_runtime_ignore_pmdown_time() - Check whether to ignore the power down delay | |
109 | * @rtd: The ASoC PCM runtime that should be checked. | |
110 | * | |
111 | * This function checks whether the power down delay should be ignored for a | |
112 | * specific PCM runtime. Returns true if the delay is 0, if it the DAI link has | |
113 | * been configured to ignore the delay, or if none of the components benefits | |
114 | * from having the delay. | |
115 | */ | |
116 | bool snd_soc_runtime_ignore_pmdown_time(struct snd_soc_pcm_runtime *rtd) | |
117 | { | |
2e5894d7 BC |
118 | int i; |
119 | bool ignore = true; | |
120 | ||
208a1589 LPC |
121 | if (!rtd->pmdown_time || rtd->dai_link->ignore_pmdown_time) |
122 | return true; | |
123 | ||
2e5894d7 BC |
124 | for (i = 0; i < rtd->num_codecs; i++) |
125 | ignore &= rtd->codec_dais[i]->component->ignore_pmdown_time; | |
126 | ||
127 | return rtd->cpu_dai->component->ignore_pmdown_time && ignore; | |
208a1589 LPC |
128 | } |
129 | ||
90996f43 LPC |
130 | /** |
131 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
132 | * @substream: the pcm substream | |
133 | * @hw: the hardware parameters | |
134 | * | |
135 | * Sets the substream runtime hardware parameters. | |
136 | */ | |
137 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
138 | const struct snd_pcm_hardware *hw) | |
139 | { | |
140 | struct snd_pcm_runtime *runtime = substream->runtime; | |
141 | runtime->hw.info = hw->info; | |
142 | runtime->hw.formats = hw->formats; | |
143 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
144 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
145 | runtime->hw.periods_min = hw->periods_min; | |
146 | runtime->hw.periods_max = hw->periods_max; | |
147 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
148 | runtime->hw.fifo_size = hw->fifo_size; | |
149 | return 0; | |
150 | } | |
151 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
152 | ||
01d7584c | 153 | /* DPCM stream event, send event to FE and all active BEs. */ |
23607025 | 154 | int dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir, |
01d7584c LG |
155 | int event) |
156 | { | |
157 | struct snd_soc_dpcm *dpcm; | |
158 | ||
159 | list_for_each_entry(dpcm, &fe->dpcm[dir].be_clients, list_be) { | |
160 | ||
161 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
162 | ||
103d84a3 | 163 | dev_dbg(be->dev, "ASoC: BE %s event %d dir %d\n", |
01d7584c LG |
164 | be->dai_link->name, event, dir); |
165 | ||
166 | snd_soc_dapm_stream_event(be, dir, event); | |
167 | } | |
168 | ||
169 | snd_soc_dapm_stream_event(fe, dir, event); | |
170 | ||
171 | return 0; | |
172 | } | |
173 | ||
17841020 DA |
174 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream, |
175 | struct snd_soc_dai *soc_dai) | |
ddee627c LG |
176 | { |
177 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
ddee627c LG |
178 | int ret; |
179 | ||
3635bf09 NC |
180 | if (soc_dai->rate && (soc_dai->driver->symmetric_rates || |
181 | rtd->dai_link->symmetric_rates)) { | |
182 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %dHz rate\n", | |
183 | soc_dai->rate); | |
184 | ||
185 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
186 | SNDRV_PCM_HW_PARAM_RATE, | |
187 | soc_dai->rate, soc_dai->rate); | |
188 | if (ret < 0) { | |
189 | dev_err(soc_dai->dev, | |
190 | "ASoC: Unable to apply rate constraint: %d\n", | |
191 | ret); | |
192 | return ret; | |
193 | } | |
194 | } | |
ddee627c | 195 | |
3635bf09 NC |
196 | if (soc_dai->channels && (soc_dai->driver->symmetric_channels || |
197 | rtd->dai_link->symmetric_channels)) { | |
198 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %d channel(s)\n", | |
199 | soc_dai->channels); | |
ddee627c | 200 | |
3635bf09 NC |
201 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, |
202 | SNDRV_PCM_HW_PARAM_CHANNELS, | |
203 | soc_dai->channels, | |
204 | soc_dai->channels); | |
205 | if (ret < 0) { | |
206 | dev_err(soc_dai->dev, | |
207 | "ASoC: Unable to apply channel symmetry constraint: %d\n", | |
208 | ret); | |
209 | return ret; | |
210 | } | |
ddee627c LG |
211 | } |
212 | ||
3635bf09 NC |
213 | if (soc_dai->sample_bits && (soc_dai->driver->symmetric_samplebits || |
214 | rtd->dai_link->symmetric_samplebits)) { | |
215 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %d sample bits\n", | |
216 | soc_dai->sample_bits); | |
ddee627c | 217 | |
3635bf09 NC |
218 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, |
219 | SNDRV_PCM_HW_PARAM_SAMPLE_BITS, | |
220 | soc_dai->sample_bits, | |
221 | soc_dai->sample_bits); | |
222 | if (ret < 0) { | |
223 | dev_err(soc_dai->dev, | |
224 | "ASoC: Unable to apply sample bits symmetry constraint: %d\n", | |
225 | ret); | |
226 | return ret; | |
227 | } | |
ddee627c LG |
228 | } |
229 | ||
230 | return 0; | |
231 | } | |
232 | ||
3635bf09 NC |
233 | static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream, |
234 | struct snd_pcm_hw_params *params) | |
235 | { | |
236 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
237 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 | 238 | unsigned int rate, channels, sample_bits, symmetry, i; |
3635bf09 NC |
239 | |
240 | rate = params_rate(params); | |
241 | channels = params_channels(params); | |
242 | sample_bits = snd_pcm_format_physical_width(params_format(params)); | |
243 | ||
244 | /* reject unmatched parameters when applying symmetry */ | |
245 | symmetry = cpu_dai->driver->symmetric_rates || | |
3635bf09 | 246 | rtd->dai_link->symmetric_rates; |
2e5894d7 BC |
247 | |
248 | for (i = 0; i < rtd->num_codecs; i++) | |
249 | symmetry |= rtd->codec_dais[i]->driver->symmetric_rates; | |
250 | ||
3635bf09 NC |
251 | if (symmetry && cpu_dai->rate && cpu_dai->rate != rate) { |
252 | dev_err(rtd->dev, "ASoC: unmatched rate symmetry: %d - %d\n", | |
253 | cpu_dai->rate, rate); | |
254 | return -EINVAL; | |
ddee627c LG |
255 | } |
256 | ||
3635bf09 | 257 | symmetry = cpu_dai->driver->symmetric_channels || |
3635bf09 | 258 | rtd->dai_link->symmetric_channels; |
2e5894d7 BC |
259 | |
260 | for (i = 0; i < rtd->num_codecs; i++) | |
261 | symmetry |= rtd->codec_dais[i]->driver->symmetric_channels; | |
262 | ||
3635bf09 NC |
263 | if (symmetry && cpu_dai->channels && cpu_dai->channels != channels) { |
264 | dev_err(rtd->dev, "ASoC: unmatched channel symmetry: %d - %d\n", | |
265 | cpu_dai->channels, channels); | |
266 | return -EINVAL; | |
267 | } | |
ddee627c | 268 | |
3635bf09 | 269 | symmetry = cpu_dai->driver->symmetric_samplebits || |
3635bf09 | 270 | rtd->dai_link->symmetric_samplebits; |
2e5894d7 BC |
271 | |
272 | for (i = 0; i < rtd->num_codecs; i++) | |
273 | symmetry |= rtd->codec_dais[i]->driver->symmetric_samplebits; | |
274 | ||
3635bf09 NC |
275 | if (symmetry && cpu_dai->sample_bits && cpu_dai->sample_bits != sample_bits) { |
276 | dev_err(rtd->dev, "ASoC: unmatched sample bits symmetry: %d - %d\n", | |
277 | cpu_dai->sample_bits, sample_bits); | |
278 | return -EINVAL; | |
ddee627c LG |
279 | } |
280 | ||
281 | return 0; | |
282 | } | |
283 | ||
62e5f676 LPC |
284 | static bool soc_pcm_has_symmetry(struct snd_pcm_substream *substream) |
285 | { | |
286 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
287 | struct snd_soc_dai_driver *cpu_driver = rtd->cpu_dai->driver; | |
62e5f676 | 288 | struct snd_soc_dai_link *link = rtd->dai_link; |
2e5894d7 | 289 | unsigned int symmetry, i; |
62e5f676 | 290 | |
2e5894d7 BC |
291 | symmetry = cpu_driver->symmetric_rates || link->symmetric_rates || |
292 | cpu_driver->symmetric_channels || link->symmetric_channels || | |
293 | cpu_driver->symmetric_samplebits || link->symmetric_samplebits; | |
62e5f676 | 294 | |
2e5894d7 BC |
295 | for (i = 0; i < rtd->num_codecs; i++) |
296 | symmetry = symmetry || | |
297 | rtd->codec_dais[i]->driver->symmetric_rates || | |
298 | rtd->codec_dais[i]->driver->symmetric_channels || | |
299 | rtd->codec_dais[i]->driver->symmetric_samplebits; | |
300 | ||
301 | return symmetry; | |
62e5f676 LPC |
302 | } |
303 | ||
2e5894d7 | 304 | static void soc_pcm_set_msb(struct snd_pcm_substream *substream, int bits) |
58ba9b25 | 305 | { |
2e5894d7 | 306 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
c6068d3a | 307 | int ret; |
58ba9b25 MB |
308 | |
309 | if (!bits) | |
310 | return; | |
311 | ||
0e2a3751 LPC |
312 | ret = snd_pcm_hw_constraint_msbits(substream->runtime, 0, 0, bits); |
313 | if (ret != 0) | |
314 | dev_warn(rtd->dev, "ASoC: Failed to set MSB %d: %d\n", | |
315 | bits, ret); | |
58ba9b25 MB |
316 | } |
317 | ||
c8dd1fec BC |
318 | static void soc_pcm_apply_msb(struct snd_pcm_substream *substream) |
319 | { | |
320 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
321 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 BC |
322 | struct snd_soc_dai *codec_dai; |
323 | int i; | |
c8dd1fec BC |
324 | unsigned int bits = 0, cpu_bits; |
325 | ||
326 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
2e5894d7 BC |
327 | for (i = 0; i < rtd->num_codecs; i++) { |
328 | codec_dai = rtd->codec_dais[i]; | |
329 | if (codec_dai->driver->playback.sig_bits == 0) { | |
330 | bits = 0; | |
331 | break; | |
332 | } | |
333 | bits = max(codec_dai->driver->playback.sig_bits, bits); | |
334 | } | |
c8dd1fec BC |
335 | cpu_bits = cpu_dai->driver->playback.sig_bits; |
336 | } else { | |
2e5894d7 BC |
337 | for (i = 0; i < rtd->num_codecs; i++) { |
338 | codec_dai = rtd->codec_dais[i]; | |
5e63dfcc | 339 | if (codec_dai->driver->capture.sig_bits == 0) { |
2e5894d7 BC |
340 | bits = 0; |
341 | break; | |
342 | } | |
343 | bits = max(codec_dai->driver->capture.sig_bits, bits); | |
344 | } | |
c8dd1fec BC |
345 | cpu_bits = cpu_dai->driver->capture.sig_bits; |
346 | } | |
347 | ||
2e5894d7 BC |
348 | soc_pcm_set_msb(substream, bits); |
349 | soc_pcm_set_msb(substream, cpu_bits); | |
c8dd1fec BC |
350 | } |
351 | ||
2e5894d7 | 352 | static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) |
bd477c31 | 353 | { |
2e5894d7 | 354 | struct snd_pcm_runtime *runtime = substream->runtime; |
78e45c99 | 355 | struct snd_pcm_hardware *hw = &runtime->hw; |
2e5894d7 BC |
356 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
357 | struct snd_soc_dai_driver *cpu_dai_drv = rtd->cpu_dai->driver; | |
358 | struct snd_soc_dai_driver *codec_dai_drv; | |
359 | struct snd_soc_pcm_stream *codec_stream; | |
360 | struct snd_soc_pcm_stream *cpu_stream; | |
361 | unsigned int chan_min = 0, chan_max = UINT_MAX; | |
362 | unsigned int rate_min = 0, rate_max = UINT_MAX; | |
363 | unsigned int rates = UINT_MAX; | |
364 | u64 formats = ULLONG_MAX; | |
365 | int i; | |
78e45c99 | 366 | |
2e5894d7 BC |
367 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
368 | cpu_stream = &cpu_dai_drv->playback; | |
16d7ea91 | 369 | else |
2e5894d7 | 370 | cpu_stream = &cpu_dai_drv->capture; |
78e45c99 | 371 | |
2e5894d7 BC |
372 | /* first calculate min/max only for CODECs in the DAI link */ |
373 | for (i = 0; i < rtd->num_codecs; i++) { | |
374 | codec_dai_drv = rtd->codec_dais[i]->driver; | |
375 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
376 | codec_stream = &codec_dai_drv->playback; | |
377 | else | |
378 | codec_stream = &codec_dai_drv->capture; | |
379 | chan_min = max(chan_min, codec_stream->channels_min); | |
380 | chan_max = min(chan_max, codec_stream->channels_max); | |
381 | rate_min = max(rate_min, codec_stream->rate_min); | |
382 | rate_max = min_not_zero(rate_max, codec_stream->rate_max); | |
383 | formats &= codec_stream->formats; | |
384 | rates = snd_pcm_rate_mask_intersect(codec_stream->rates, rates); | |
385 | } | |
386 | ||
387 | /* | |
388 | * chan min/max cannot be enforced if there are multiple CODEC DAIs | |
389 | * connected to a single CPU DAI, use CPU DAI's directly and let | |
390 | * channel allocation be fixed up later | |
391 | */ | |
392 | if (rtd->num_codecs > 1) { | |
393 | chan_min = cpu_stream->channels_min; | |
394 | chan_max = cpu_stream->channels_max; | |
395 | } | |
396 | ||
397 | hw->channels_min = max(chan_min, cpu_stream->channels_min); | |
398 | hw->channels_max = min(chan_max, cpu_stream->channels_max); | |
399 | if (hw->formats) | |
400 | hw->formats &= formats & cpu_stream->formats; | |
401 | else | |
402 | hw->formats = formats & cpu_stream->formats; | |
403 | hw->rates = snd_pcm_rate_mask_intersect(rates, cpu_stream->rates); | |
78e45c99 LPC |
404 | |
405 | snd_pcm_limit_hw_rates(runtime); | |
406 | ||
407 | hw->rate_min = max(hw->rate_min, cpu_stream->rate_min); | |
2e5894d7 | 408 | hw->rate_min = max(hw->rate_min, rate_min); |
78e45c99 | 409 | hw->rate_max = min_not_zero(hw->rate_max, cpu_stream->rate_max); |
2e5894d7 | 410 | hw->rate_max = min_not_zero(hw->rate_max, rate_max); |
bd477c31 LPC |
411 | } |
412 | ||
ddee627c LG |
413 | /* |
414 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
415 | * then initialized and any private data can be allocated. This also calls | |
416 | * startup for the cpu DAI, platform, machine and codec DAI. | |
417 | */ | |
418 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
419 | { | |
420 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
421 | struct snd_pcm_runtime *runtime = substream->runtime; | |
422 | struct snd_soc_platform *platform = rtd->platform; | |
423 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 BC |
424 | struct snd_soc_dai *codec_dai; |
425 | const char *codec_dai_name = "multicodec"; | |
426 | int i, ret = 0; | |
ddee627c | 427 | |
988e8cc4 | 428 | pinctrl_pm_select_default_state(cpu_dai->dev); |
2e5894d7 BC |
429 | for (i = 0; i < rtd->num_codecs; i++) |
430 | pinctrl_pm_select_default_state(rtd->codec_dais[i]->dev); | |
d6652ef8 | 431 | pm_runtime_get_sync(cpu_dai->dev); |
2e5894d7 BC |
432 | for (i = 0; i < rtd->num_codecs; i++) |
433 | pm_runtime_get_sync(rtd->codec_dais[i]->dev); | |
d6652ef8 MB |
434 | pm_runtime_get_sync(platform->dev); |
435 | ||
b8c0dab9 | 436 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c LG |
437 | |
438 | /* startup the audio subsystem */ | |
c5914b0a | 439 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->startup) { |
ddee627c LG |
440 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); |
441 | if (ret < 0) { | |
103d84a3 LG |
442 | dev_err(cpu_dai->dev, "ASoC: can't open interface" |
443 | " %s: %d\n", cpu_dai->name, ret); | |
ddee627c LG |
444 | goto out; |
445 | } | |
446 | } | |
447 | ||
448 | if (platform->driver->ops && platform->driver->ops->open) { | |
449 | ret = platform->driver->ops->open(substream); | |
450 | if (ret < 0) { | |
103d84a3 | 451 | dev_err(platform->dev, "ASoC: can't open platform" |
f4333203 | 452 | " %s: %d\n", platform->component.name, ret); |
ddee627c LG |
453 | goto platform_err; |
454 | } | |
455 | } | |
456 | ||
2e5894d7 BC |
457 | for (i = 0; i < rtd->num_codecs; i++) { |
458 | codec_dai = rtd->codec_dais[i]; | |
459 | if (codec_dai->driver->ops && codec_dai->driver->ops->startup) { | |
460 | ret = codec_dai->driver->ops->startup(substream, | |
461 | codec_dai); | |
462 | if (ret < 0) { | |
463 | dev_err(codec_dai->dev, | |
464 | "ASoC: can't open codec %s: %d\n", | |
465 | codec_dai->name, ret); | |
466 | goto codec_dai_err; | |
467 | } | |
ddee627c | 468 | } |
2e5894d7 BC |
469 | |
470 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
471 | codec_dai->tx_mask = 0; | |
472 | else | |
473 | codec_dai->rx_mask = 0; | |
ddee627c LG |
474 | } |
475 | ||
476 | if (rtd->dai_link->ops && rtd->dai_link->ops->startup) { | |
477 | ret = rtd->dai_link->ops->startup(substream); | |
478 | if (ret < 0) { | |
103d84a3 | 479 | pr_err("ASoC: %s startup failed: %d\n", |
25bfe662 | 480 | rtd->dai_link->name, ret); |
ddee627c LG |
481 | goto machine_err; |
482 | } | |
483 | } | |
484 | ||
01d7584c LG |
485 | /* Dynamic PCM DAI links compat checks use dynamic capabilities */ |
486 | if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) | |
487 | goto dynamic; | |
488 | ||
ddee627c | 489 | /* Check that the codec and cpu DAIs are compatible */ |
2e5894d7 BC |
490 | soc_pcm_init_runtime_hw(substream); |
491 | ||
492 | if (rtd->num_codecs == 1) | |
493 | codec_dai_name = rtd->codec_dai->name; | |
ddee627c | 494 | |
62e5f676 LPC |
495 | if (soc_pcm_has_symmetry(substream)) |
496 | runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
497 | ||
ddee627c | 498 | ret = -EINVAL; |
ddee627c | 499 | if (!runtime->hw.rates) { |
103d84a3 | 500 | printk(KERN_ERR "ASoC: %s <-> %s No matching rates\n", |
2e5894d7 | 501 | codec_dai_name, cpu_dai->name); |
ddee627c LG |
502 | goto config_err; |
503 | } | |
504 | if (!runtime->hw.formats) { | |
103d84a3 | 505 | printk(KERN_ERR "ASoC: %s <-> %s No matching formats\n", |
2e5894d7 | 506 | codec_dai_name, cpu_dai->name); |
ddee627c LG |
507 | goto config_err; |
508 | } | |
509 | if (!runtime->hw.channels_min || !runtime->hw.channels_max || | |
510 | runtime->hw.channels_min > runtime->hw.channels_max) { | |
103d84a3 | 511 | printk(KERN_ERR "ASoC: %s <-> %s No matching channels\n", |
2e5894d7 | 512 | codec_dai_name, cpu_dai->name); |
ddee627c LG |
513 | goto config_err; |
514 | } | |
515 | ||
c8dd1fec | 516 | soc_pcm_apply_msb(substream); |
58ba9b25 | 517 | |
ddee627c | 518 | /* Symmetry only applies if we've already got an active stream. */ |
17841020 DA |
519 | if (cpu_dai->active) { |
520 | ret = soc_pcm_apply_symmetry(substream, cpu_dai); | |
521 | if (ret != 0) | |
522 | goto config_err; | |
523 | } | |
524 | ||
2e5894d7 BC |
525 | for (i = 0; i < rtd->num_codecs; i++) { |
526 | if (rtd->codec_dais[i]->active) { | |
527 | ret = soc_pcm_apply_symmetry(substream, | |
528 | rtd->codec_dais[i]); | |
529 | if (ret != 0) | |
530 | goto config_err; | |
531 | } | |
ddee627c LG |
532 | } |
533 | ||
103d84a3 | 534 | pr_debug("ASoC: %s <-> %s info:\n", |
2e5894d7 | 535 | codec_dai_name, cpu_dai->name); |
103d84a3 LG |
536 | pr_debug("ASoC: rate mask 0x%x\n", runtime->hw.rates); |
537 | pr_debug("ASoC: min ch %d max ch %d\n", runtime->hw.channels_min, | |
ddee627c | 538 | runtime->hw.channels_max); |
103d84a3 | 539 | pr_debug("ASoC: min rate %d max rate %d\n", runtime->hw.rate_min, |
ddee627c LG |
540 | runtime->hw.rate_max); |
541 | ||
01d7584c | 542 | dynamic: |
24894b76 LPC |
543 | |
544 | snd_soc_runtime_activate(rtd, substream->stream); | |
545 | ||
b8c0dab9 | 546 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
547 | return 0; |
548 | ||
549 | config_err: | |
550 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) | |
551 | rtd->dai_link->ops->shutdown(substream); | |
552 | ||
553 | machine_err: | |
2e5894d7 | 554 | i = rtd->num_codecs; |
ddee627c LG |
555 | |
556 | codec_dai_err: | |
2e5894d7 BC |
557 | while (--i >= 0) { |
558 | codec_dai = rtd->codec_dais[i]; | |
559 | if (codec_dai->driver->ops->shutdown) | |
560 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
561 | } | |
562 | ||
ddee627c LG |
563 | if (platform->driver->ops && platform->driver->ops->close) |
564 | platform->driver->ops->close(substream); | |
565 | ||
566 | platform_err: | |
567 | if (cpu_dai->driver->ops->shutdown) | |
568 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
569 | out: | |
b8c0dab9 | 570 | mutex_unlock(&rtd->pcm_mutex); |
d6652ef8 MB |
571 | |
572 | pm_runtime_put(platform->dev); | |
2e5894d7 BC |
573 | for (i = 0; i < rtd->num_codecs; i++) |
574 | pm_runtime_put(rtd->codec_dais[i]->dev); | |
d6652ef8 | 575 | pm_runtime_put(cpu_dai->dev); |
2e5894d7 BC |
576 | for (i = 0; i < rtd->num_codecs; i++) { |
577 | if (!rtd->codec_dais[i]->active) | |
578 | pinctrl_pm_select_sleep_state(rtd->codec_dais[i]->dev); | |
579 | } | |
988e8cc4 NC |
580 | if (!cpu_dai->active) |
581 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
d6652ef8 | 582 | |
ddee627c LG |
583 | return ret; |
584 | } | |
585 | ||
586 | /* | |
587 | * Power down the audio subsystem pmdown_time msecs after close is called. | |
588 | * This is to ensure there are no pops or clicks in between any music tracks | |
589 | * due to DAPM power cycling. | |
590 | */ | |
591 | static void close_delayed_work(struct work_struct *work) | |
592 | { | |
593 | struct snd_soc_pcm_runtime *rtd = | |
594 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
2e5894d7 | 595 | struct snd_soc_dai *codec_dai = rtd->codec_dais[0]; |
ddee627c | 596 | |
b8c0dab9 | 597 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 598 | |
103d84a3 | 599 | dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n", |
ddee627c LG |
600 | codec_dai->driver->playback.stream_name, |
601 | codec_dai->playback_active ? "active" : "inactive", | |
9bffb1fb | 602 | rtd->pop_wait ? "yes" : "no"); |
ddee627c LG |
603 | |
604 | /* are we waiting on this codec DAI stream */ | |
9bffb1fb MLC |
605 | if (rtd->pop_wait == 1) { |
606 | rtd->pop_wait = 0; | |
7bd3a6f3 | 607 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK, |
d9b0951b | 608 | SND_SOC_DAPM_STREAM_STOP); |
ddee627c LG |
609 | } |
610 | ||
b8c0dab9 | 611 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
612 | } |
613 | ||
614 | /* | |
615 | * Called by ALSA when a PCM substream is closed. Private data can be | |
616 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
617 | * shutdown. | |
618 | */ | |
91d5e6b4 | 619 | static int soc_pcm_close(struct snd_pcm_substream *substream) |
ddee627c LG |
620 | { |
621 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
622 | struct snd_soc_platform *platform = rtd->platform; | |
623 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 BC |
624 | struct snd_soc_dai *codec_dai; |
625 | int i; | |
ddee627c | 626 | |
b8c0dab9 | 627 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 628 | |
24894b76 | 629 | snd_soc_runtime_deactivate(rtd, substream->stream); |
ddee627c | 630 | |
17841020 DA |
631 | /* clear the corresponding DAIs rate when inactive */ |
632 | if (!cpu_dai->active) | |
633 | cpu_dai->rate = 0; | |
634 | ||
2e5894d7 BC |
635 | for (i = 0; i < rtd->num_codecs; i++) { |
636 | codec_dai = rtd->codec_dais[i]; | |
637 | if (!codec_dai->active) | |
638 | codec_dai->rate = 0; | |
639 | } | |
25b76791 | 640 | |
ae11601b RB |
641 | snd_soc_dai_digital_mute(cpu_dai, 1, substream->stream); |
642 | ||
ddee627c LG |
643 | if (cpu_dai->driver->ops->shutdown) |
644 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
645 | ||
2e5894d7 BC |
646 | for (i = 0; i < rtd->num_codecs; i++) { |
647 | codec_dai = rtd->codec_dais[i]; | |
648 | if (codec_dai->driver->ops->shutdown) | |
649 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
650 | } | |
ddee627c LG |
651 | |
652 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) | |
653 | rtd->dai_link->ops->shutdown(substream); | |
654 | ||
655 | if (platform->driver->ops && platform->driver->ops->close) | |
656 | platform->driver->ops->close(substream); | |
ddee627c LG |
657 | |
658 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
208a1589 | 659 | if (snd_soc_runtime_ignore_pmdown_time(rtd)) { |
1d69c5c5 PU |
660 | /* powered down playback stream now */ |
661 | snd_soc_dapm_stream_event(rtd, | |
7bd3a6f3 | 662 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 663 | SND_SOC_DAPM_STREAM_STOP); |
1d69c5c5 PU |
664 | } else { |
665 | /* start delayed pop wq here for playback streams */ | |
9bffb1fb | 666 | rtd->pop_wait = 1; |
d4e1a73a MB |
667 | queue_delayed_work(system_power_efficient_wq, |
668 | &rtd->delayed_work, | |
669 | msecs_to_jiffies(rtd->pmdown_time)); | |
1d69c5c5 | 670 | } |
ddee627c LG |
671 | } else { |
672 | /* capture streams can be powered down now */ | |
7bd3a6f3 | 673 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_CAPTURE, |
d9b0951b | 674 | SND_SOC_DAPM_STREAM_STOP); |
ddee627c LG |
675 | } |
676 | ||
b8c0dab9 | 677 | mutex_unlock(&rtd->pcm_mutex); |
d6652ef8 MB |
678 | |
679 | pm_runtime_put(platform->dev); | |
2e5894d7 BC |
680 | for (i = 0; i < rtd->num_codecs; i++) |
681 | pm_runtime_put(rtd->codec_dais[i]->dev); | |
d6652ef8 | 682 | pm_runtime_put(cpu_dai->dev); |
2e5894d7 BC |
683 | for (i = 0; i < rtd->num_codecs; i++) { |
684 | if (!rtd->codec_dais[i]->active) | |
685 | pinctrl_pm_select_sleep_state(rtd->codec_dais[i]->dev); | |
686 | } | |
988e8cc4 NC |
687 | if (!cpu_dai->active) |
688 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
d6652ef8 | 689 | |
ddee627c LG |
690 | return 0; |
691 | } | |
692 | ||
693 | /* | |
694 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
695 | * rate, etc. This function is non atomic and can be called multiple times, | |
696 | * it can refer to the runtime info. | |
697 | */ | |
698 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
699 | { | |
700 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
701 | struct snd_soc_platform *platform = rtd->platform; | |
702 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 BC |
703 | struct snd_soc_dai *codec_dai; |
704 | int i, ret = 0; | |
ddee627c | 705 | |
b8c0dab9 | 706 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c LG |
707 | |
708 | if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) { | |
709 | ret = rtd->dai_link->ops->prepare(substream); | |
710 | if (ret < 0) { | |
103d84a3 LG |
711 | dev_err(rtd->card->dev, "ASoC: machine prepare error:" |
712 | " %d\n", ret); | |
ddee627c LG |
713 | goto out; |
714 | } | |
715 | } | |
716 | ||
717 | if (platform->driver->ops && platform->driver->ops->prepare) { | |
718 | ret = platform->driver->ops->prepare(substream); | |
719 | if (ret < 0) { | |
103d84a3 LG |
720 | dev_err(platform->dev, "ASoC: platform prepare error:" |
721 | " %d\n", ret); | |
ddee627c LG |
722 | goto out; |
723 | } | |
724 | } | |
725 | ||
2e5894d7 BC |
726 | for (i = 0; i < rtd->num_codecs; i++) { |
727 | codec_dai = rtd->codec_dais[i]; | |
728 | if (codec_dai->driver->ops && codec_dai->driver->ops->prepare) { | |
729 | ret = codec_dai->driver->ops->prepare(substream, | |
730 | codec_dai); | |
731 | if (ret < 0) { | |
732 | dev_err(codec_dai->dev, | |
90cc7f1c JN |
733 | "ASoC: codec DAI prepare error: %d\n", |
734 | ret); | |
2e5894d7 BC |
735 | goto out; |
736 | } | |
ddee627c LG |
737 | } |
738 | } | |
739 | ||
c5914b0a | 740 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->prepare) { |
ddee627c LG |
741 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); |
742 | if (ret < 0) { | |
90cc7f1c JN |
743 | dev_err(cpu_dai->dev, |
744 | "ASoC: cpu DAI prepare error: %d\n", ret); | |
ddee627c LG |
745 | goto out; |
746 | } | |
747 | } | |
748 | ||
749 | /* cancel any delayed stream shutdown that is pending */ | |
750 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
9bffb1fb MLC |
751 | rtd->pop_wait) { |
752 | rtd->pop_wait = 0; | |
ddee627c LG |
753 | cancel_delayed_work(&rtd->delayed_work); |
754 | } | |
755 | ||
d9b0951b LG |
756 | snd_soc_dapm_stream_event(rtd, substream->stream, |
757 | SND_SOC_DAPM_STREAM_START); | |
ddee627c | 758 | |
2e5894d7 BC |
759 | for (i = 0; i < rtd->num_codecs; i++) |
760 | snd_soc_dai_digital_mute(rtd->codec_dais[i], 0, | |
761 | substream->stream); | |
ae11601b | 762 | snd_soc_dai_digital_mute(cpu_dai, 0, substream->stream); |
ddee627c LG |
763 | |
764 | out: | |
b8c0dab9 | 765 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
766 | return ret; |
767 | } | |
768 | ||
2e5894d7 BC |
769 | static void soc_pcm_codec_params_fixup(struct snd_pcm_hw_params *params, |
770 | unsigned int mask) | |
771 | { | |
772 | struct snd_interval *interval; | |
773 | int channels = hweight_long(mask); | |
774 | ||
775 | interval = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); | |
776 | interval->min = channels; | |
777 | interval->max = channels; | |
778 | } | |
779 | ||
93e6958a BC |
780 | int soc_dai_hw_params(struct snd_pcm_substream *substream, |
781 | struct snd_pcm_hw_params *params, | |
782 | struct snd_soc_dai *dai) | |
783 | { | |
784 | int ret; | |
785 | ||
786 | if (dai->driver->ops && dai->driver->ops->hw_params) { | |
787 | ret = dai->driver->ops->hw_params(substream, params, dai); | |
788 | if (ret < 0) { | |
789 | dev_err(dai->dev, "ASoC: can't set %s hw params: %d\n", | |
790 | dai->name, ret); | |
791 | return ret; | |
792 | } | |
793 | } | |
794 | ||
795 | return 0; | |
796 | } | |
797 | ||
ddee627c LG |
798 | /* |
799 | * Called by ALSA when the hardware params are set by application. This | |
800 | * function can also be called multiple times and can allocate buffers | |
801 | * (using snd_pcm_lib_* ). It's non-atomic. | |
802 | */ | |
803 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
804 | struct snd_pcm_hw_params *params) | |
805 | { | |
806 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
807 | struct snd_soc_platform *platform = rtd->platform; | |
808 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 | 809 | int i, ret = 0; |
ddee627c | 810 | |
b8c0dab9 | 811 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 812 | |
3635bf09 NC |
813 | ret = soc_pcm_params_symmetry(substream, params); |
814 | if (ret) | |
815 | goto out; | |
816 | ||
ddee627c LG |
817 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) { |
818 | ret = rtd->dai_link->ops->hw_params(substream, params); | |
819 | if (ret < 0) { | |
103d84a3 LG |
820 | dev_err(rtd->card->dev, "ASoC: machine hw_params" |
821 | " failed: %d\n", ret); | |
ddee627c LG |
822 | goto out; |
823 | } | |
824 | } | |
825 | ||
2e5894d7 BC |
826 | for (i = 0; i < rtd->num_codecs; i++) { |
827 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
828 | struct snd_pcm_hw_params codec_params; | |
829 | ||
830 | /* copy params for each codec */ | |
831 | codec_params = *params; | |
832 | ||
833 | /* fixup params based on TDM slot masks */ | |
834 | if (codec_dai->tx_mask) | |
835 | soc_pcm_codec_params_fixup(&codec_params, | |
836 | codec_dai->tx_mask); | |
837 | if (codec_dai->rx_mask) | |
838 | soc_pcm_codec_params_fixup(&codec_params, | |
839 | codec_dai->rx_mask); | |
840 | ||
93e6958a BC |
841 | ret = soc_dai_hw_params(substream, &codec_params, codec_dai); |
842 | if(ret < 0) | |
ddee627c | 843 | goto codec_err; |
ddee627c | 844 | |
2e5894d7 BC |
845 | codec_dai->rate = params_rate(&codec_params); |
846 | codec_dai->channels = params_channels(&codec_params); | |
847 | codec_dai->sample_bits = snd_pcm_format_physical_width( | |
848 | params_format(&codec_params)); | |
ddee627c LG |
849 | } |
850 | ||
93e6958a BC |
851 | ret = soc_dai_hw_params(substream, params, cpu_dai); |
852 | if (ret < 0) | |
853 | goto interface_err; | |
ddee627c LG |
854 | |
855 | if (platform->driver->ops && platform->driver->ops->hw_params) { | |
856 | ret = platform->driver->ops->hw_params(substream, params); | |
857 | if (ret < 0) { | |
103d84a3 | 858 | dev_err(platform->dev, "ASoC: %s hw params failed: %d\n", |
f4333203 | 859 | platform->component.name, ret); |
ddee627c LG |
860 | goto platform_err; |
861 | } | |
862 | } | |
863 | ||
3635bf09 | 864 | /* store the parameters for each DAIs */ |
17841020 | 865 | cpu_dai->rate = params_rate(params); |
3635bf09 NC |
866 | cpu_dai->channels = params_channels(params); |
867 | cpu_dai->sample_bits = | |
868 | snd_pcm_format_physical_width(params_format(params)); | |
869 | ||
ddee627c | 870 | out: |
b8c0dab9 | 871 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
872 | return ret; |
873 | ||
874 | platform_err: | |
c5914b0a | 875 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->hw_free) |
ddee627c LG |
876 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); |
877 | ||
878 | interface_err: | |
2e5894d7 | 879 | i = rtd->num_codecs; |
ddee627c LG |
880 | |
881 | codec_err: | |
2e5894d7 BC |
882 | while (--i >= 0) { |
883 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
884 | if (codec_dai->driver->ops && codec_dai->driver->ops->hw_free) | |
885 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
886 | codec_dai->rate = 0; | |
887 | } | |
888 | ||
ddee627c LG |
889 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
890 | rtd->dai_link->ops->hw_free(substream); | |
891 | ||
b8c0dab9 | 892 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
893 | return ret; |
894 | } | |
895 | ||
896 | /* | |
897 | * Frees resources allocated by hw_params, can be called multiple times | |
898 | */ | |
899 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
900 | { | |
901 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
902 | struct snd_soc_platform *platform = rtd->platform; | |
903 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 | 904 | struct snd_soc_dai *codec_dai; |
7f62b6ee | 905 | bool playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; |
2e5894d7 | 906 | int i; |
ddee627c | 907 | |
b8c0dab9 | 908 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 909 | |
d3383420 NC |
910 | /* clear the corresponding DAIs parameters when going to be inactive */ |
911 | if (cpu_dai->active == 1) { | |
912 | cpu_dai->rate = 0; | |
913 | cpu_dai->channels = 0; | |
914 | cpu_dai->sample_bits = 0; | |
915 | } | |
916 | ||
2e5894d7 BC |
917 | for (i = 0; i < rtd->num_codecs; i++) { |
918 | codec_dai = rtd->codec_dais[i]; | |
919 | if (codec_dai->active == 1) { | |
920 | codec_dai->rate = 0; | |
921 | codec_dai->channels = 0; | |
922 | codec_dai->sample_bits = 0; | |
923 | } | |
d3383420 NC |
924 | } |
925 | ||
ddee627c | 926 | /* apply codec digital mute */ |
2e5894d7 BC |
927 | for (i = 0; i < rtd->num_codecs; i++) { |
928 | if ((playback && rtd->codec_dais[i]->playback_active == 1) || | |
929 | (!playback && rtd->codec_dais[i]->capture_active == 1)) | |
930 | snd_soc_dai_digital_mute(rtd->codec_dais[i], 1, | |
931 | substream->stream); | |
932 | } | |
ddee627c LG |
933 | |
934 | /* free any machine hw params */ | |
935 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) | |
936 | rtd->dai_link->ops->hw_free(substream); | |
937 | ||
938 | /* free any DMA resources */ | |
939 | if (platform->driver->ops && platform->driver->ops->hw_free) | |
940 | platform->driver->ops->hw_free(substream); | |
941 | ||
942 | /* now free hw params for the DAIs */ | |
2e5894d7 BC |
943 | for (i = 0; i < rtd->num_codecs; i++) { |
944 | codec_dai = rtd->codec_dais[i]; | |
945 | if (codec_dai->driver->ops && codec_dai->driver->ops->hw_free) | |
946 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
947 | } | |
ddee627c | 948 | |
c5914b0a | 949 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->hw_free) |
ddee627c LG |
950 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); |
951 | ||
b8c0dab9 | 952 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
953 | return 0; |
954 | } | |
955 | ||
956 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
957 | { | |
958 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
959 | struct snd_soc_platform *platform = rtd->platform; | |
960 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 BC |
961 | struct snd_soc_dai *codec_dai; |
962 | int i, ret; | |
963 | ||
964 | for (i = 0; i < rtd->num_codecs; i++) { | |
965 | codec_dai = rtd->codec_dais[i]; | |
966 | if (codec_dai->driver->ops && codec_dai->driver->ops->trigger) { | |
967 | ret = codec_dai->driver->ops->trigger(substream, | |
968 | cmd, codec_dai); | |
969 | if (ret < 0) | |
970 | return ret; | |
971 | } | |
ddee627c LG |
972 | } |
973 | ||
974 | if (platform->driver->ops && platform->driver->ops->trigger) { | |
975 | ret = platform->driver->ops->trigger(substream, cmd); | |
976 | if (ret < 0) | |
977 | return ret; | |
978 | } | |
979 | ||
c5914b0a | 980 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->trigger) { |
ddee627c LG |
981 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); |
982 | if (ret < 0) | |
983 | return ret; | |
984 | } | |
4792b0db JN |
985 | |
986 | if (rtd->dai_link->ops && rtd->dai_link->ops->trigger) { | |
987 | ret = rtd->dai_link->ops->trigger(substream, cmd); | |
988 | if (ret < 0) | |
989 | return ret; | |
990 | } | |
991 | ||
ddee627c LG |
992 | return 0; |
993 | } | |
994 | ||
45c0a188 MB |
995 | static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream, |
996 | int cmd) | |
07bf84aa LG |
997 | { |
998 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
999 | struct snd_soc_platform *platform = rtd->platform; | |
1000 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 BC |
1001 | struct snd_soc_dai *codec_dai; |
1002 | int i, ret; | |
1003 | ||
1004 | for (i = 0; i < rtd->num_codecs; i++) { | |
1005 | codec_dai = rtd->codec_dais[i]; | |
1006 | if (codec_dai->driver->ops && | |
1007 | codec_dai->driver->ops->bespoke_trigger) { | |
1008 | ret = codec_dai->driver->ops->bespoke_trigger(substream, | |
1009 | cmd, codec_dai); | |
1010 | if (ret < 0) | |
1011 | return ret; | |
1012 | } | |
07bf84aa LG |
1013 | } |
1014 | ||
dcf0fa27 | 1015 | if (platform->driver->bespoke_trigger) { |
07bf84aa LG |
1016 | ret = platform->driver->bespoke_trigger(substream, cmd); |
1017 | if (ret < 0) | |
1018 | return ret; | |
1019 | } | |
1020 | ||
c5914b0a | 1021 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->bespoke_trigger) { |
07bf84aa LG |
1022 | ret = cpu_dai->driver->ops->bespoke_trigger(substream, cmd, cpu_dai); |
1023 | if (ret < 0) | |
1024 | return ret; | |
1025 | } | |
1026 | return 0; | |
1027 | } | |
ddee627c LG |
1028 | /* |
1029 | * soc level wrapper for pointer callback | |
1030 | * If cpu_dai, codec_dai, platform driver has the delay callback, than | |
1031 | * the runtime->delay will be updated accordingly. | |
1032 | */ | |
1033 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
1034 | { | |
1035 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1036 | struct snd_soc_platform *platform = rtd->platform; | |
1037 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 | 1038 | struct snd_soc_dai *codec_dai; |
ddee627c LG |
1039 | struct snd_pcm_runtime *runtime = substream->runtime; |
1040 | snd_pcm_uframes_t offset = 0; | |
1041 | snd_pcm_sframes_t delay = 0; | |
2e5894d7 BC |
1042 | snd_pcm_sframes_t codec_delay = 0; |
1043 | int i; | |
ddee627c LG |
1044 | |
1045 | if (platform->driver->ops && platform->driver->ops->pointer) | |
1046 | offset = platform->driver->ops->pointer(substream); | |
1047 | ||
c5914b0a | 1048 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->delay) |
ddee627c LG |
1049 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); |
1050 | ||
2e5894d7 BC |
1051 | for (i = 0; i < rtd->num_codecs; i++) { |
1052 | codec_dai = rtd->codec_dais[i]; | |
1053 | if (codec_dai->driver->ops && codec_dai->driver->ops->delay) | |
1054 | codec_delay = max(codec_delay, | |
1055 | codec_dai->driver->ops->delay(substream, | |
1056 | codec_dai)); | |
1057 | } | |
1058 | delay += codec_delay; | |
ddee627c | 1059 | |
2e5894d7 BC |
1060 | /* |
1061 | * None of the existing platform drivers implement delay(), so | |
1062 | * for now the codec_dai of first multicodec entry is used | |
1063 | */ | |
ddee627c | 1064 | if (platform->driver->delay) |
2e5894d7 | 1065 | delay += platform->driver->delay(substream, rtd->codec_dais[0]); |
ddee627c LG |
1066 | |
1067 | runtime->delay = delay; | |
1068 | ||
1069 | return offset; | |
1070 | } | |
1071 | ||
01d7584c LG |
1072 | /* connect a FE and BE */ |
1073 | static int dpcm_be_connect(struct snd_soc_pcm_runtime *fe, | |
1074 | struct snd_soc_pcm_runtime *be, int stream) | |
1075 | { | |
1076 | struct snd_soc_dpcm *dpcm; | |
1077 | ||
1078 | /* only add new dpcms */ | |
1079 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1080 | if (dpcm->be == be && dpcm->fe == fe) | |
1081 | return 0; | |
1082 | } | |
1083 | ||
1084 | dpcm = kzalloc(sizeof(struct snd_soc_dpcm), GFP_KERNEL); | |
1085 | if (!dpcm) | |
1086 | return -ENOMEM; | |
1087 | ||
1088 | dpcm->be = be; | |
1089 | dpcm->fe = fe; | |
1090 | be->dpcm[stream].runtime = fe->dpcm[stream].runtime; | |
1091 | dpcm->state = SND_SOC_DPCM_LINK_STATE_NEW; | |
1092 | list_add(&dpcm->list_be, &fe->dpcm[stream].be_clients); | |
1093 | list_add(&dpcm->list_fe, &be->dpcm[stream].fe_clients); | |
1094 | ||
7cc302d2 | 1095 | dev_dbg(fe->dev, "connected new DPCM %s path %s %s %s\n", |
01d7584c LG |
1096 | stream ? "capture" : "playback", fe->dai_link->name, |
1097 | stream ? "<-" : "->", be->dai_link->name); | |
1098 | ||
f86dcef8 LG |
1099 | #ifdef CONFIG_DEBUG_FS |
1100 | dpcm->debugfs_state = debugfs_create_u32(be->dai_link->name, 0644, | |
1101 | fe->debugfs_dpcm_root, &dpcm->state); | |
1102 | #endif | |
01d7584c LG |
1103 | return 1; |
1104 | } | |
1105 | ||
1106 | /* reparent a BE onto another FE */ | |
1107 | static void dpcm_be_reparent(struct snd_soc_pcm_runtime *fe, | |
1108 | struct snd_soc_pcm_runtime *be, int stream) | |
1109 | { | |
1110 | struct snd_soc_dpcm *dpcm; | |
1111 | struct snd_pcm_substream *fe_substream, *be_substream; | |
1112 | ||
1113 | /* reparent if BE is connected to other FEs */ | |
1114 | if (!be->dpcm[stream].users) | |
1115 | return; | |
1116 | ||
1117 | be_substream = snd_soc_dpcm_get_substream(be, stream); | |
1118 | ||
1119 | list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { | |
1120 | if (dpcm->fe == fe) | |
1121 | continue; | |
1122 | ||
7cc302d2 | 1123 | dev_dbg(fe->dev, "reparent %s path %s %s %s\n", |
01d7584c LG |
1124 | stream ? "capture" : "playback", |
1125 | dpcm->fe->dai_link->name, | |
1126 | stream ? "<-" : "->", dpcm->be->dai_link->name); | |
1127 | ||
1128 | fe_substream = snd_soc_dpcm_get_substream(dpcm->fe, stream); | |
1129 | be_substream->runtime = fe_substream->runtime; | |
1130 | break; | |
1131 | } | |
1132 | } | |
1133 | ||
1134 | /* disconnect a BE and FE */ | |
23607025 | 1135 | void dpcm_be_disconnect(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1136 | { |
1137 | struct snd_soc_dpcm *dpcm, *d; | |
1138 | ||
1139 | list_for_each_entry_safe(dpcm, d, &fe->dpcm[stream].be_clients, list_be) { | |
103d84a3 | 1140 | dev_dbg(fe->dev, "ASoC: BE %s disconnect check for %s\n", |
01d7584c LG |
1141 | stream ? "capture" : "playback", |
1142 | dpcm->be->dai_link->name); | |
1143 | ||
1144 | if (dpcm->state != SND_SOC_DPCM_LINK_STATE_FREE) | |
1145 | continue; | |
1146 | ||
7cc302d2 | 1147 | dev_dbg(fe->dev, "freed DSP %s path %s %s %s\n", |
01d7584c LG |
1148 | stream ? "capture" : "playback", fe->dai_link->name, |
1149 | stream ? "<-" : "->", dpcm->be->dai_link->name); | |
1150 | ||
1151 | /* BEs still alive need new FE */ | |
1152 | dpcm_be_reparent(fe, dpcm->be, stream); | |
1153 | ||
f86dcef8 LG |
1154 | #ifdef CONFIG_DEBUG_FS |
1155 | debugfs_remove(dpcm->debugfs_state); | |
1156 | #endif | |
01d7584c LG |
1157 | list_del(&dpcm->list_be); |
1158 | list_del(&dpcm->list_fe); | |
1159 | kfree(dpcm); | |
1160 | } | |
1161 | } | |
1162 | ||
1163 | /* get BE for DAI widget and stream */ | |
1164 | static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card, | |
1165 | struct snd_soc_dapm_widget *widget, int stream) | |
1166 | { | |
1167 | struct snd_soc_pcm_runtime *be; | |
2e5894d7 | 1168 | int i, j; |
01d7584c LG |
1169 | |
1170 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
1171 | for (i = 0; i < card->num_links; i++) { | |
1172 | be = &card->rtd[i]; | |
1173 | ||
35ea0655 LG |
1174 | if (!be->dai_link->no_pcm) |
1175 | continue; | |
1176 | ||
2e5894d7 | 1177 | if (be->cpu_dai->playback_widget == widget) |
01d7584c | 1178 | return be; |
2e5894d7 BC |
1179 | |
1180 | for (j = 0; j < be->num_codecs; j++) { | |
1181 | struct snd_soc_dai *dai = be->codec_dais[j]; | |
1182 | if (dai->playback_widget == widget) | |
1183 | return be; | |
1184 | } | |
01d7584c LG |
1185 | } |
1186 | } else { | |
1187 | ||
1188 | for (i = 0; i < card->num_links; i++) { | |
1189 | be = &card->rtd[i]; | |
1190 | ||
35ea0655 LG |
1191 | if (!be->dai_link->no_pcm) |
1192 | continue; | |
1193 | ||
2e5894d7 | 1194 | if (be->cpu_dai->capture_widget == widget) |
01d7584c | 1195 | return be; |
2e5894d7 BC |
1196 | |
1197 | for (j = 0; j < be->num_codecs; j++) { | |
1198 | struct snd_soc_dai *dai = be->codec_dais[j]; | |
1199 | if (dai->capture_widget == widget) | |
1200 | return be; | |
1201 | } | |
01d7584c LG |
1202 | } |
1203 | } | |
1204 | ||
103d84a3 | 1205 | dev_err(card->dev, "ASoC: can't get %s BE for %s\n", |
01d7584c LG |
1206 | stream ? "capture" : "playback", widget->name); |
1207 | return NULL; | |
1208 | } | |
1209 | ||
1210 | static inline struct snd_soc_dapm_widget * | |
37018610 | 1211 | dai_get_widget(struct snd_soc_dai *dai, int stream) |
01d7584c LG |
1212 | { |
1213 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
37018610 | 1214 | return dai->playback_widget; |
01d7584c | 1215 | else |
37018610 | 1216 | return dai->capture_widget; |
01d7584c LG |
1217 | } |
1218 | ||
1219 | static int widget_in_list(struct snd_soc_dapm_widget_list *list, | |
1220 | struct snd_soc_dapm_widget *widget) | |
1221 | { | |
1222 | int i; | |
1223 | ||
1224 | for (i = 0; i < list->num_widgets; i++) { | |
1225 | if (widget == list->widgets[i]) | |
1226 | return 1; | |
1227 | } | |
1228 | ||
1229 | return 0; | |
1230 | } | |
1231 | ||
23607025 | 1232 | int dpcm_path_get(struct snd_soc_pcm_runtime *fe, |
01d7584c LG |
1233 | int stream, struct snd_soc_dapm_widget_list **list_) |
1234 | { | |
1235 | struct snd_soc_dai *cpu_dai = fe->cpu_dai; | |
1236 | struct snd_soc_dapm_widget_list *list; | |
1237 | int paths; | |
1238 | ||
1239 | list = kzalloc(sizeof(struct snd_soc_dapm_widget_list) + | |
1240 | sizeof(struct snd_soc_dapm_widget *), GFP_KERNEL); | |
1241 | if (list == NULL) | |
1242 | return -ENOMEM; | |
1243 | ||
1244 | /* get number of valid DAI paths and their widgets */ | |
1245 | paths = snd_soc_dapm_dai_get_connected_widgets(cpu_dai, stream, &list); | |
1246 | ||
103d84a3 | 1247 | dev_dbg(fe->dev, "ASoC: found %d audio %s paths\n", paths, |
01d7584c LG |
1248 | stream ? "capture" : "playback"); |
1249 | ||
1250 | *list_ = list; | |
1251 | return paths; | |
1252 | } | |
1253 | ||
01d7584c LG |
1254 | static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream, |
1255 | struct snd_soc_dapm_widget_list **list_) | |
1256 | { | |
1257 | struct snd_soc_dpcm *dpcm; | |
1258 | struct snd_soc_dapm_widget_list *list = *list_; | |
1259 | struct snd_soc_dapm_widget *widget; | |
1260 | int prune = 0; | |
1261 | ||
1262 | /* Destroy any old FE <--> BE connections */ | |
1263 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
2e5894d7 | 1264 | unsigned int i; |
01d7584c LG |
1265 | |
1266 | /* is there a valid CPU DAI widget for this BE */ | |
37018610 | 1267 | widget = dai_get_widget(dpcm->be->cpu_dai, stream); |
01d7584c LG |
1268 | |
1269 | /* prune the BE if it's no longer in our active list */ | |
1270 | if (widget && widget_in_list(list, widget)) | |
1271 | continue; | |
1272 | ||
1273 | /* is there a valid CODEC DAI widget for this BE */ | |
2e5894d7 BC |
1274 | for (i = 0; i < dpcm->be->num_codecs; i++) { |
1275 | struct snd_soc_dai *dai = dpcm->be->codec_dais[i]; | |
1276 | widget = dai_get_widget(dai, stream); | |
01d7584c | 1277 | |
2e5894d7 BC |
1278 | /* prune the BE if it's no longer in our active list */ |
1279 | if (widget && widget_in_list(list, widget)) | |
1280 | continue; | |
1281 | } | |
01d7584c | 1282 | |
103d84a3 | 1283 | dev_dbg(fe->dev, "ASoC: pruning %s BE %s for %s\n", |
01d7584c LG |
1284 | stream ? "capture" : "playback", |
1285 | dpcm->be->dai_link->name, fe->dai_link->name); | |
1286 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
1287 | dpcm->be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | |
1288 | prune++; | |
1289 | } | |
1290 | ||
103d84a3 | 1291 | dev_dbg(fe->dev, "ASoC: found %d old BE paths for pruning\n", prune); |
01d7584c LG |
1292 | return prune; |
1293 | } | |
1294 | ||
1295 | static int dpcm_add_paths(struct snd_soc_pcm_runtime *fe, int stream, | |
1296 | struct snd_soc_dapm_widget_list **list_) | |
1297 | { | |
1298 | struct snd_soc_card *card = fe->card; | |
1299 | struct snd_soc_dapm_widget_list *list = *list_; | |
1300 | struct snd_soc_pcm_runtime *be; | |
1301 | int i, new = 0, err; | |
1302 | ||
1303 | /* Create any new FE <--> BE connections */ | |
1304 | for (i = 0; i < list->num_widgets; i++) { | |
1305 | ||
4616274d MB |
1306 | switch (list->widgets[i]->id) { |
1307 | case snd_soc_dapm_dai_in: | |
1308 | case snd_soc_dapm_dai_out: | |
1309 | break; | |
1310 | default: | |
01d7584c | 1311 | continue; |
4616274d | 1312 | } |
01d7584c LG |
1313 | |
1314 | /* is there a valid BE rtd for this widget */ | |
1315 | be = dpcm_get_be(card, list->widgets[i], stream); | |
1316 | if (!be) { | |
103d84a3 | 1317 | dev_err(fe->dev, "ASoC: no BE found for %s\n", |
01d7584c LG |
1318 | list->widgets[i]->name); |
1319 | continue; | |
1320 | } | |
1321 | ||
1322 | /* make sure BE is a real BE */ | |
1323 | if (!be->dai_link->no_pcm) | |
1324 | continue; | |
1325 | ||
1326 | /* don't connect if FE is not running */ | |
23607025 | 1327 | if (!fe->dpcm[stream].runtime && !fe->fe_compr) |
01d7584c LG |
1328 | continue; |
1329 | ||
1330 | /* newly connected FE and BE */ | |
1331 | err = dpcm_be_connect(fe, be, stream); | |
1332 | if (err < 0) { | |
103d84a3 | 1333 | dev_err(fe->dev, "ASoC: can't connect %s\n", |
01d7584c LG |
1334 | list->widgets[i]->name); |
1335 | break; | |
1336 | } else if (err == 0) /* already connected */ | |
1337 | continue; | |
1338 | ||
1339 | /* new */ | |
1340 | be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | |
1341 | new++; | |
1342 | } | |
1343 | ||
103d84a3 | 1344 | dev_dbg(fe->dev, "ASoC: found %d new BE paths\n", new); |
01d7584c LG |
1345 | return new; |
1346 | } | |
1347 | ||
1348 | /* | |
1349 | * Find the corresponding BE DAIs that source or sink audio to this | |
1350 | * FE substream. | |
1351 | */ | |
23607025 | 1352 | int dpcm_process_paths(struct snd_soc_pcm_runtime *fe, |
01d7584c LG |
1353 | int stream, struct snd_soc_dapm_widget_list **list, int new) |
1354 | { | |
1355 | if (new) | |
1356 | return dpcm_add_paths(fe, stream, list); | |
1357 | else | |
1358 | return dpcm_prune_paths(fe, stream, list); | |
1359 | } | |
1360 | ||
23607025 | 1361 | void dpcm_clear_pending_state(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1362 | { |
1363 | struct snd_soc_dpcm *dpcm; | |
1364 | ||
1365 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
1366 | dpcm->be->dpcm[stream].runtime_update = | |
1367 | SND_SOC_DPCM_UPDATE_NO; | |
1368 | } | |
1369 | ||
1370 | static void dpcm_be_dai_startup_unwind(struct snd_soc_pcm_runtime *fe, | |
1371 | int stream) | |
1372 | { | |
1373 | struct snd_soc_dpcm *dpcm; | |
1374 | ||
1375 | /* disable any enabled and non active backends */ | |
1376 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1377 | ||
1378 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1379 | struct snd_pcm_substream *be_substream = | |
1380 | snd_soc_dpcm_get_substream(be, stream); | |
1381 | ||
1382 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1383 | dev_err(be->dev, "ASoC: no users %s at close - state %d\n", |
01d7584c LG |
1384 | stream ? "capture" : "playback", |
1385 | be->dpcm[stream].state); | |
1386 | ||
1387 | if (--be->dpcm[stream].users != 0) | |
1388 | continue; | |
1389 | ||
1390 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) | |
1391 | continue; | |
1392 | ||
1393 | soc_pcm_close(be_substream); | |
1394 | be_substream->runtime = NULL; | |
1395 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1396 | } | |
1397 | } | |
1398 | ||
23607025 | 1399 | int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1400 | { |
1401 | struct snd_soc_dpcm *dpcm; | |
1402 | int err, count = 0; | |
1403 | ||
1404 | /* only startup BE DAIs that are either sinks or sources to this FE DAI */ | |
1405 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1406 | ||
1407 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1408 | struct snd_pcm_substream *be_substream = | |
1409 | snd_soc_dpcm_get_substream(be, stream); | |
1410 | ||
2062b4c5 RKAL |
1411 | if (!be_substream) { |
1412 | dev_err(be->dev, "ASoC: no backend %s stream\n", | |
1413 | stream ? "capture" : "playback"); | |
1414 | continue; | |
1415 | } | |
1416 | ||
01d7584c LG |
1417 | /* is this op for this BE ? */ |
1418 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1419 | continue; | |
1420 | ||
1421 | /* first time the dpcm is open ? */ | |
1422 | if (be->dpcm[stream].users == DPCM_MAX_BE_USERS) | |
103d84a3 | 1423 | dev_err(be->dev, "ASoC: too many users %s at open %d\n", |
01d7584c LG |
1424 | stream ? "capture" : "playback", |
1425 | be->dpcm[stream].state); | |
1426 | ||
1427 | if (be->dpcm[stream].users++ != 0) | |
1428 | continue; | |
1429 | ||
1430 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_NEW) && | |
1431 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_CLOSE)) | |
1432 | continue; | |
1433 | ||
2062b4c5 RKAL |
1434 | dev_dbg(be->dev, "ASoC: open %s BE %s\n", |
1435 | stream ? "capture" : "playback", be->dai_link->name); | |
01d7584c LG |
1436 | |
1437 | be_substream->runtime = be->dpcm[stream].runtime; | |
1438 | err = soc_pcm_open(be_substream); | |
1439 | if (err < 0) { | |
103d84a3 | 1440 | dev_err(be->dev, "ASoC: BE open failed %d\n", err); |
01d7584c LG |
1441 | be->dpcm[stream].users--; |
1442 | if (be->dpcm[stream].users < 0) | |
103d84a3 | 1443 | dev_err(be->dev, "ASoC: no users %s at unwind %d\n", |
01d7584c LG |
1444 | stream ? "capture" : "playback", |
1445 | be->dpcm[stream].state); | |
1446 | ||
1447 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1448 | goto unwind; | |
1449 | } | |
1450 | ||
1451 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
1452 | count++; | |
1453 | } | |
1454 | ||
1455 | return count; | |
1456 | ||
1457 | unwind: | |
1458 | /* disable any enabled and non active backends */ | |
1459 | list_for_each_entry_continue_reverse(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1460 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1461 | struct snd_pcm_substream *be_substream = | |
1462 | snd_soc_dpcm_get_substream(be, stream); | |
1463 | ||
1464 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1465 | continue; | |
1466 | ||
1467 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1468 | dev_err(be->dev, "ASoC: no users %s at close %d\n", |
01d7584c LG |
1469 | stream ? "capture" : "playback", |
1470 | be->dpcm[stream].state); | |
1471 | ||
1472 | if (--be->dpcm[stream].users != 0) | |
1473 | continue; | |
1474 | ||
1475 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) | |
1476 | continue; | |
1477 | ||
1478 | soc_pcm_close(be_substream); | |
1479 | be_substream->runtime = NULL; | |
1480 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1481 | } | |
1482 | ||
1483 | return err; | |
1484 | } | |
1485 | ||
08ae9b45 LPC |
1486 | static void dpcm_init_runtime_hw(struct snd_pcm_runtime *runtime, |
1487 | struct snd_soc_pcm_stream *stream) | |
1488 | { | |
1489 | runtime->hw.rate_min = stream->rate_min; | |
1490 | runtime->hw.rate_max = stream->rate_max; | |
1491 | runtime->hw.channels_min = stream->channels_min; | |
1492 | runtime->hw.channels_max = stream->channels_max; | |
002220a9 LPC |
1493 | if (runtime->hw.formats) |
1494 | runtime->hw.formats &= stream->formats; | |
1495 | else | |
1496 | runtime->hw.formats = stream->formats; | |
08ae9b45 LPC |
1497 | runtime->hw.rates = stream->rates; |
1498 | } | |
1499 | ||
45c0a188 | 1500 | static void dpcm_set_fe_runtime(struct snd_pcm_substream *substream) |
01d7584c LG |
1501 | { |
1502 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1503 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1504 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1505 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
1506 | ||
08ae9b45 LPC |
1507 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
1508 | dpcm_init_runtime_hw(runtime, &cpu_dai_drv->playback); | |
1509 | else | |
1510 | dpcm_init_runtime_hw(runtime, &cpu_dai_drv->capture); | |
01d7584c LG |
1511 | } |
1512 | ||
ea9d0d77 TI |
1513 | static int dpcm_fe_dai_do_trigger(struct snd_pcm_substream *substream, int cmd); |
1514 | ||
1515 | /* Set FE's runtime_update state; the state is protected via PCM stream lock | |
1516 | * for avoiding the race with trigger callback. | |
1517 | * If the state is unset and a trigger is pending while the previous operation, | |
1518 | * process the pending trigger action here. | |
1519 | */ | |
1520 | static void dpcm_set_fe_update_state(struct snd_soc_pcm_runtime *fe, | |
1521 | int stream, enum snd_soc_dpcm_update state) | |
1522 | { | |
1523 | struct snd_pcm_substream *substream = | |
1524 | snd_soc_dpcm_get_substream(fe, stream); | |
1525 | ||
1526 | snd_pcm_stream_lock_irq(substream); | |
1527 | if (state == SND_SOC_DPCM_UPDATE_NO && fe->dpcm[stream].trigger_pending) { | |
1528 | dpcm_fe_dai_do_trigger(substream, | |
1529 | fe->dpcm[stream].trigger_pending - 1); | |
1530 | fe->dpcm[stream].trigger_pending = 0; | |
1531 | } | |
1532 | fe->dpcm[stream].runtime_update = state; | |
1533 | snd_pcm_stream_unlock_irq(substream); | |
1534 | } | |
1535 | ||
01d7584c LG |
1536 | static int dpcm_fe_dai_startup(struct snd_pcm_substream *fe_substream) |
1537 | { | |
1538 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
1539 | struct snd_pcm_runtime *runtime = fe_substream->runtime; | |
1540 | int stream = fe_substream->stream, ret = 0; | |
1541 | ||
ea9d0d77 | 1542 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
1543 | |
1544 | ret = dpcm_be_dai_startup(fe, fe_substream->stream); | |
1545 | if (ret < 0) { | |
103d84a3 | 1546 | dev_err(fe->dev,"ASoC: failed to start some BEs %d\n", ret); |
01d7584c LG |
1547 | goto be_err; |
1548 | } | |
1549 | ||
103d84a3 | 1550 | dev_dbg(fe->dev, "ASoC: open FE %s\n", fe->dai_link->name); |
01d7584c LG |
1551 | |
1552 | /* start the DAI frontend */ | |
1553 | ret = soc_pcm_open(fe_substream); | |
1554 | if (ret < 0) { | |
103d84a3 | 1555 | dev_err(fe->dev,"ASoC: failed to start FE %d\n", ret); |
01d7584c LG |
1556 | goto unwind; |
1557 | } | |
1558 | ||
1559 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
1560 | ||
1561 | dpcm_set_fe_runtime(fe_substream); | |
1562 | snd_pcm_limit_hw_rates(runtime); | |
1563 | ||
ea9d0d77 | 1564 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1565 | return 0; |
1566 | ||
1567 | unwind: | |
1568 | dpcm_be_dai_startup_unwind(fe, fe_substream->stream); | |
1569 | be_err: | |
ea9d0d77 | 1570 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1571 | return ret; |
1572 | } | |
1573 | ||
23607025 | 1574 | int dpcm_be_dai_shutdown(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1575 | { |
1576 | struct snd_soc_dpcm *dpcm; | |
1577 | ||
1578 | /* only shutdown BEs that are either sinks or sources to this FE DAI */ | |
1579 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1580 | ||
1581 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1582 | struct snd_pcm_substream *be_substream = | |
1583 | snd_soc_dpcm_get_substream(be, stream); | |
1584 | ||
1585 | /* is this op for this BE ? */ | |
1586 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1587 | continue; | |
1588 | ||
1589 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1590 | dev_err(be->dev, "ASoC: no users %s at close - state %d\n", |
01d7584c LG |
1591 | stream ? "capture" : "playback", |
1592 | be->dpcm[stream].state); | |
1593 | ||
1594 | if (--be->dpcm[stream].users != 0) | |
1595 | continue; | |
1596 | ||
1597 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
1598 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN)) | |
1599 | continue; | |
1600 | ||
103d84a3 | 1601 | dev_dbg(be->dev, "ASoC: close BE %s\n", |
01d7584c LG |
1602 | dpcm->fe->dai_link->name); |
1603 | ||
1604 | soc_pcm_close(be_substream); | |
1605 | be_substream->runtime = NULL; | |
1606 | ||
1607 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1608 | } | |
1609 | return 0; | |
1610 | } | |
1611 | ||
1612 | static int dpcm_fe_dai_shutdown(struct snd_pcm_substream *substream) | |
1613 | { | |
1614 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1615 | int stream = substream->stream; | |
1616 | ||
ea9d0d77 | 1617 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
1618 | |
1619 | /* shutdown the BEs */ | |
1620 | dpcm_be_dai_shutdown(fe, substream->stream); | |
1621 | ||
103d84a3 | 1622 | dev_dbg(fe->dev, "ASoC: close FE %s\n", fe->dai_link->name); |
01d7584c LG |
1623 | |
1624 | /* now shutdown the frontend */ | |
1625 | soc_pcm_close(substream); | |
1626 | ||
1627 | /* run the stream event for each BE */ | |
1628 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP); | |
1629 | ||
1630 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
ea9d0d77 | 1631 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1632 | return 0; |
1633 | } | |
1634 | ||
23607025 | 1635 | int dpcm_be_dai_hw_free(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1636 | { |
1637 | struct snd_soc_dpcm *dpcm; | |
1638 | ||
1639 | /* only hw_params backends that are either sinks or sources | |
1640 | * to this frontend DAI */ | |
1641 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1642 | ||
1643 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1644 | struct snd_pcm_substream *be_substream = | |
1645 | snd_soc_dpcm_get_substream(be, stream); | |
1646 | ||
1647 | /* is this op for this BE ? */ | |
1648 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1649 | continue; | |
1650 | ||
1651 | /* only free hw when no longer used - check all FEs */ | |
1652 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
1653 | continue; | |
1654 | ||
36fba62c QZ |
1655 | /* do not free hw if this BE is used by other FE */ |
1656 | if (be->dpcm[stream].users > 1) | |
1657 | continue; | |
1658 | ||
01d7584c LG |
1659 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && |
1660 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && | |
1661 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
08b27848 | 1662 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED) && |
01d7584c LG |
1663 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) |
1664 | continue; | |
1665 | ||
103d84a3 | 1666 | dev_dbg(be->dev, "ASoC: hw_free BE %s\n", |
01d7584c LG |
1667 | dpcm->fe->dai_link->name); |
1668 | ||
1669 | soc_pcm_hw_free(be_substream); | |
1670 | ||
1671 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
1672 | } | |
1673 | ||
1674 | return 0; | |
1675 | } | |
1676 | ||
45c0a188 | 1677 | static int dpcm_fe_dai_hw_free(struct snd_pcm_substream *substream) |
01d7584c LG |
1678 | { |
1679 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1680 | int err, stream = substream->stream; | |
1681 | ||
1682 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
ea9d0d77 | 1683 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c | 1684 | |
103d84a3 | 1685 | dev_dbg(fe->dev, "ASoC: hw_free FE %s\n", fe->dai_link->name); |
01d7584c LG |
1686 | |
1687 | /* call hw_free on the frontend */ | |
1688 | err = soc_pcm_hw_free(substream); | |
1689 | if (err < 0) | |
103d84a3 | 1690 | dev_err(fe->dev,"ASoC: hw_free FE %s failed\n", |
01d7584c LG |
1691 | fe->dai_link->name); |
1692 | ||
1693 | /* only hw_params backends that are either sinks or sources | |
1694 | * to this frontend DAI */ | |
1695 | err = dpcm_be_dai_hw_free(fe, stream); | |
1696 | ||
1697 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
ea9d0d77 | 1698 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1699 | |
1700 | mutex_unlock(&fe->card->mutex); | |
1701 | return 0; | |
1702 | } | |
1703 | ||
23607025 | 1704 | int dpcm_be_dai_hw_params(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1705 | { |
1706 | struct snd_soc_dpcm *dpcm; | |
1707 | int ret; | |
1708 | ||
1709 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1710 | ||
1711 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1712 | struct snd_pcm_substream *be_substream = | |
1713 | snd_soc_dpcm_get_substream(be, stream); | |
1714 | ||
1715 | /* is this op for this BE ? */ | |
1716 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1717 | continue; | |
1718 | ||
1719 | /* only allow hw_params() if no connected FEs are running */ | |
1720 | if (!snd_soc_dpcm_can_be_params(fe, be, stream)) | |
1721 | continue; | |
1722 | ||
1723 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) && | |
1724 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
1725 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE)) | |
1726 | continue; | |
1727 | ||
103d84a3 | 1728 | dev_dbg(be->dev, "ASoC: hw_params BE %s\n", |
01d7584c LG |
1729 | dpcm->fe->dai_link->name); |
1730 | ||
1731 | /* copy params for each dpcm */ | |
1732 | memcpy(&dpcm->hw_params, &fe->dpcm[stream].hw_params, | |
1733 | sizeof(struct snd_pcm_hw_params)); | |
1734 | ||
1735 | /* perform any hw_params fixups */ | |
1736 | if (be->dai_link->be_hw_params_fixup) { | |
1737 | ret = be->dai_link->be_hw_params_fixup(be, | |
1738 | &dpcm->hw_params); | |
1739 | if (ret < 0) { | |
1740 | dev_err(be->dev, | |
103d84a3 | 1741 | "ASoC: hw_params BE fixup failed %d\n", |
01d7584c LG |
1742 | ret); |
1743 | goto unwind; | |
1744 | } | |
1745 | } | |
1746 | ||
1747 | ret = soc_pcm_hw_params(be_substream, &dpcm->hw_params); | |
1748 | if (ret < 0) { | |
1749 | dev_err(dpcm->be->dev, | |
103d84a3 | 1750 | "ASoC: hw_params BE failed %d\n", ret); |
01d7584c LG |
1751 | goto unwind; |
1752 | } | |
1753 | ||
1754 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS; | |
1755 | } | |
1756 | return 0; | |
1757 | ||
1758 | unwind: | |
1759 | /* disable any enabled and non active backends */ | |
1760 | list_for_each_entry_continue_reverse(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1761 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1762 | struct snd_pcm_substream *be_substream = | |
1763 | snd_soc_dpcm_get_substream(be, stream); | |
1764 | ||
1765 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1766 | continue; | |
1767 | ||
1768 | /* only allow hw_free() if no connected FEs are running */ | |
1769 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
1770 | continue; | |
1771 | ||
1772 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) && | |
1773 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
1774 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
1775 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
1776 | continue; | |
1777 | ||
1778 | soc_pcm_hw_free(be_substream); | |
1779 | } | |
1780 | ||
1781 | return ret; | |
1782 | } | |
1783 | ||
45c0a188 MB |
1784 | static int dpcm_fe_dai_hw_params(struct snd_pcm_substream *substream, |
1785 | struct snd_pcm_hw_params *params) | |
01d7584c LG |
1786 | { |
1787 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1788 | int ret, stream = substream->stream; | |
1789 | ||
1790 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
ea9d0d77 | 1791 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
1792 | |
1793 | memcpy(&fe->dpcm[substream->stream].hw_params, params, | |
1794 | sizeof(struct snd_pcm_hw_params)); | |
1795 | ret = dpcm_be_dai_hw_params(fe, substream->stream); | |
1796 | if (ret < 0) { | |
103d84a3 | 1797 | dev_err(fe->dev,"ASoC: hw_params BE failed %d\n", ret); |
01d7584c LG |
1798 | goto out; |
1799 | } | |
1800 | ||
103d84a3 | 1801 | dev_dbg(fe->dev, "ASoC: hw_params FE %s rate %d chan %x fmt %d\n", |
01d7584c LG |
1802 | fe->dai_link->name, params_rate(params), |
1803 | params_channels(params), params_format(params)); | |
1804 | ||
1805 | /* call hw_params on the frontend */ | |
1806 | ret = soc_pcm_hw_params(substream, params); | |
1807 | if (ret < 0) { | |
103d84a3 | 1808 | dev_err(fe->dev,"ASoC: hw_params FE failed %d\n", ret); |
01d7584c LG |
1809 | dpcm_be_dai_hw_free(fe, stream); |
1810 | } else | |
1811 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS; | |
1812 | ||
1813 | out: | |
ea9d0d77 | 1814 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1815 | mutex_unlock(&fe->card->mutex); |
1816 | return ret; | |
1817 | } | |
1818 | ||
1819 | static int dpcm_do_trigger(struct snd_soc_dpcm *dpcm, | |
1820 | struct snd_pcm_substream *substream, int cmd) | |
1821 | { | |
1822 | int ret; | |
1823 | ||
103d84a3 | 1824 | dev_dbg(dpcm->be->dev, "ASoC: trigger BE %s cmd %d\n", |
01d7584c LG |
1825 | dpcm->fe->dai_link->name, cmd); |
1826 | ||
1827 | ret = soc_pcm_trigger(substream, cmd); | |
1828 | if (ret < 0) | |
103d84a3 | 1829 | dev_err(dpcm->be->dev,"ASoC: trigger BE failed %d\n", ret); |
01d7584c LG |
1830 | |
1831 | return ret; | |
1832 | } | |
1833 | ||
23607025 | 1834 | int dpcm_be_dai_trigger(struct snd_soc_pcm_runtime *fe, int stream, |
45c0a188 | 1835 | int cmd) |
01d7584c LG |
1836 | { |
1837 | struct snd_soc_dpcm *dpcm; | |
1838 | int ret = 0; | |
1839 | ||
1840 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1841 | ||
1842 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1843 | struct snd_pcm_substream *be_substream = | |
1844 | snd_soc_dpcm_get_substream(be, stream); | |
1845 | ||
1846 | /* is this op for this BE ? */ | |
1847 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1848 | continue; | |
1849 | ||
1850 | switch (cmd) { | |
1851 | case SNDRV_PCM_TRIGGER_START: | |
1852 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && | |
1853 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
1854 | continue; | |
1855 | ||
1856 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
1857 | if (ret) | |
1858 | return ret; | |
1859 | ||
1860 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
1861 | break; | |
1862 | case SNDRV_PCM_TRIGGER_RESUME: | |
1863 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND)) | |
1864 | continue; | |
1865 | ||
1866 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
1867 | if (ret) | |
1868 | return ret; | |
1869 | ||
1870 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
1871 | break; | |
1872 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
1873 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED)) | |
1874 | continue; | |
1875 | ||
1876 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
1877 | if (ret) | |
1878 | return ret; | |
1879 | ||
1880 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
1881 | break; | |
1882 | case SNDRV_PCM_TRIGGER_STOP: | |
1883 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
1884 | continue; | |
1885 | ||
1886 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
1887 | continue; | |
1888 | ||
1889 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
1890 | if (ret) | |
1891 | return ret; | |
1892 | ||
1893 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; | |
1894 | break; | |
1895 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
868a6ca8 | 1896 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) |
01d7584c LG |
1897 | continue; |
1898 | ||
1899 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
1900 | continue; | |
1901 | ||
1902 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
1903 | if (ret) | |
1904 | return ret; | |
1905 | ||
1906 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_SUSPEND; | |
1907 | break; | |
1908 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
1909 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
1910 | continue; | |
1911 | ||
1912 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
1913 | continue; | |
1914 | ||
1915 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
1916 | if (ret) | |
1917 | return ret; | |
1918 | ||
1919 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED; | |
1920 | break; | |
1921 | } | |
1922 | } | |
1923 | ||
1924 | return ret; | |
1925 | } | |
1926 | EXPORT_SYMBOL_GPL(dpcm_be_dai_trigger); | |
1927 | ||
ea9d0d77 | 1928 | static int dpcm_fe_dai_do_trigger(struct snd_pcm_substream *substream, int cmd) |
01d7584c LG |
1929 | { |
1930 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1931 | int stream = substream->stream, ret; | |
1932 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; | |
1933 | ||
1934 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
1935 | ||
1936 | switch (trigger) { | |
1937 | case SND_SOC_DPCM_TRIGGER_PRE: | |
1938 | /* call trigger on the frontend before the backend. */ | |
1939 | ||
103d84a3 | 1940 | dev_dbg(fe->dev, "ASoC: pre trigger FE %s cmd %d\n", |
01d7584c LG |
1941 | fe->dai_link->name, cmd); |
1942 | ||
1943 | ret = soc_pcm_trigger(substream, cmd); | |
1944 | if (ret < 0) { | |
103d84a3 | 1945 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
01d7584c LG |
1946 | goto out; |
1947 | } | |
1948 | ||
1949 | ret = dpcm_be_dai_trigger(fe, substream->stream, cmd); | |
1950 | break; | |
1951 | case SND_SOC_DPCM_TRIGGER_POST: | |
1952 | /* call trigger on the frontend after the backend. */ | |
1953 | ||
1954 | ret = dpcm_be_dai_trigger(fe, substream->stream, cmd); | |
1955 | if (ret < 0) { | |
103d84a3 | 1956 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
01d7584c LG |
1957 | goto out; |
1958 | } | |
1959 | ||
103d84a3 | 1960 | dev_dbg(fe->dev, "ASoC: post trigger FE %s cmd %d\n", |
01d7584c LG |
1961 | fe->dai_link->name, cmd); |
1962 | ||
1963 | ret = soc_pcm_trigger(substream, cmd); | |
1964 | break; | |
07bf84aa LG |
1965 | case SND_SOC_DPCM_TRIGGER_BESPOKE: |
1966 | /* bespoke trigger() - handles both FE and BEs */ | |
1967 | ||
103d84a3 | 1968 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd %d\n", |
07bf84aa LG |
1969 | fe->dai_link->name, cmd); |
1970 | ||
1971 | ret = soc_pcm_bespoke_trigger(substream, cmd); | |
1972 | if (ret < 0) { | |
103d84a3 | 1973 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
07bf84aa LG |
1974 | goto out; |
1975 | } | |
1976 | break; | |
01d7584c | 1977 | default: |
103d84a3 | 1978 | dev_err(fe->dev, "ASoC: invalid trigger cmd %d for %s\n", cmd, |
01d7584c LG |
1979 | fe->dai_link->name); |
1980 | ret = -EINVAL; | |
1981 | goto out; | |
1982 | } | |
1983 | ||
1984 | switch (cmd) { | |
1985 | case SNDRV_PCM_TRIGGER_START: | |
1986 | case SNDRV_PCM_TRIGGER_RESUME: | |
1987 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
1988 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
1989 | break; | |
1990 | case SNDRV_PCM_TRIGGER_STOP: | |
1991 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
1992 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
1993 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; | |
1994 | break; | |
1995 | } | |
1996 | ||
1997 | out: | |
1998 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
1999 | return ret; | |
2000 | } | |
2001 | ||
ea9d0d77 TI |
2002 | static int dpcm_fe_dai_trigger(struct snd_pcm_substream *substream, int cmd) |
2003 | { | |
2004 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2005 | int stream = substream->stream; | |
2006 | ||
2007 | /* if FE's runtime_update is already set, we're in race; | |
2008 | * process this trigger later at exit | |
2009 | */ | |
2010 | if (fe->dpcm[stream].runtime_update != SND_SOC_DPCM_UPDATE_NO) { | |
2011 | fe->dpcm[stream].trigger_pending = cmd + 1; | |
2012 | return 0; /* delayed, assuming it's successful */ | |
2013 | } | |
2014 | ||
2015 | /* we're alone, let's trigger */ | |
2016 | return dpcm_fe_dai_do_trigger(substream, cmd); | |
2017 | } | |
2018 | ||
23607025 | 2019 | int dpcm_be_dai_prepare(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
2020 | { |
2021 | struct snd_soc_dpcm *dpcm; | |
2022 | int ret = 0; | |
2023 | ||
2024 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
2025 | ||
2026 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2027 | struct snd_pcm_substream *be_substream = | |
2028 | snd_soc_dpcm_get_substream(be, stream); | |
2029 | ||
2030 | /* is this op for this BE ? */ | |
2031 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2032 | continue; | |
2033 | ||
2034 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
2035 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
2036 | continue; | |
2037 | ||
103d84a3 | 2038 | dev_dbg(be->dev, "ASoC: prepare BE %s\n", |
01d7584c LG |
2039 | dpcm->fe->dai_link->name); |
2040 | ||
2041 | ret = soc_pcm_prepare(be_substream); | |
2042 | if (ret < 0) { | |
103d84a3 | 2043 | dev_err(be->dev, "ASoC: backend prepare failed %d\n", |
01d7584c LG |
2044 | ret); |
2045 | break; | |
2046 | } | |
2047 | ||
2048 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | |
2049 | } | |
2050 | return ret; | |
2051 | } | |
2052 | ||
45c0a188 | 2053 | static int dpcm_fe_dai_prepare(struct snd_pcm_substream *substream) |
01d7584c LG |
2054 | { |
2055 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2056 | int stream = substream->stream, ret = 0; | |
2057 | ||
2058 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2059 | ||
103d84a3 | 2060 | dev_dbg(fe->dev, "ASoC: prepare FE %s\n", fe->dai_link->name); |
01d7584c | 2061 | |
ea9d0d77 | 2062 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
2063 | |
2064 | /* there is no point preparing this FE if there are no BEs */ | |
2065 | if (list_empty(&fe->dpcm[stream].be_clients)) { | |
103d84a3 | 2066 | dev_err(fe->dev, "ASoC: no backend DAIs enabled for %s\n", |
01d7584c LG |
2067 | fe->dai_link->name); |
2068 | ret = -EINVAL; | |
2069 | goto out; | |
2070 | } | |
2071 | ||
2072 | ret = dpcm_be_dai_prepare(fe, substream->stream); | |
2073 | if (ret < 0) | |
2074 | goto out; | |
2075 | ||
2076 | /* call prepare on the frontend */ | |
2077 | ret = soc_pcm_prepare(substream); | |
2078 | if (ret < 0) { | |
103d84a3 | 2079 | dev_err(fe->dev,"ASoC: prepare FE %s failed\n", |
01d7584c LG |
2080 | fe->dai_link->name); |
2081 | goto out; | |
2082 | } | |
2083 | ||
2084 | /* run the stream event for each BE */ | |
2085 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START); | |
2086 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | |
2087 | ||
2088 | out: | |
ea9d0d77 | 2089 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
2090 | mutex_unlock(&fe->card->mutex); |
2091 | ||
2092 | return ret; | |
2093 | } | |
2094 | ||
be3f3f2c LG |
2095 | static int soc_pcm_ioctl(struct snd_pcm_substream *substream, |
2096 | unsigned int cmd, void *arg) | |
2097 | { | |
2098 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
2099 | struct snd_soc_platform *platform = rtd->platform; | |
2100 | ||
c5914b0a | 2101 | if (platform->driver->ops && platform->driver->ops->ioctl) |
be3f3f2c LG |
2102 | return platform->driver->ops->ioctl(substream, cmd, arg); |
2103 | return snd_pcm_lib_ioctl(substream, cmd, arg); | |
2104 | } | |
2105 | ||
618dae11 LG |
2106 | static int dpcm_run_update_shutdown(struct snd_soc_pcm_runtime *fe, int stream) |
2107 | { | |
07bf84aa LG |
2108 | struct snd_pcm_substream *substream = |
2109 | snd_soc_dpcm_get_substream(fe, stream); | |
2110 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; | |
618dae11 LG |
2111 | int err; |
2112 | ||
103d84a3 | 2113 | dev_dbg(fe->dev, "ASoC: runtime %s close on FE %s\n", |
618dae11 LG |
2114 | stream ? "capture" : "playback", fe->dai_link->name); |
2115 | ||
07bf84aa LG |
2116 | if (trigger == SND_SOC_DPCM_TRIGGER_BESPOKE) { |
2117 | /* call bespoke trigger - FE takes care of all BE triggers */ | |
103d84a3 | 2118 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd stop\n", |
07bf84aa LG |
2119 | fe->dai_link->name); |
2120 | ||
2121 | err = soc_pcm_bespoke_trigger(substream, SNDRV_PCM_TRIGGER_STOP); | |
2122 | if (err < 0) | |
103d84a3 | 2123 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", err); |
07bf84aa | 2124 | } else { |
103d84a3 | 2125 | dev_dbg(fe->dev, "ASoC: trigger FE %s cmd stop\n", |
07bf84aa LG |
2126 | fe->dai_link->name); |
2127 | ||
2128 | err = dpcm_be_dai_trigger(fe, stream, SNDRV_PCM_TRIGGER_STOP); | |
2129 | if (err < 0) | |
103d84a3 | 2130 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", err); |
07bf84aa | 2131 | } |
618dae11 LG |
2132 | |
2133 | err = dpcm_be_dai_hw_free(fe, stream); | |
2134 | if (err < 0) | |
103d84a3 | 2135 | dev_err(fe->dev,"ASoC: hw_free FE failed %d\n", err); |
618dae11 LG |
2136 | |
2137 | err = dpcm_be_dai_shutdown(fe, stream); | |
2138 | if (err < 0) | |
103d84a3 | 2139 | dev_err(fe->dev,"ASoC: shutdown FE failed %d\n", err); |
618dae11 LG |
2140 | |
2141 | /* run the stream event for each BE */ | |
2142 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_NOP); | |
2143 | ||
2144 | return 0; | |
2145 | } | |
2146 | ||
2147 | static int dpcm_run_update_startup(struct snd_soc_pcm_runtime *fe, int stream) | |
2148 | { | |
07bf84aa LG |
2149 | struct snd_pcm_substream *substream = |
2150 | snd_soc_dpcm_get_substream(fe, stream); | |
618dae11 | 2151 | struct snd_soc_dpcm *dpcm; |
07bf84aa | 2152 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; |
618dae11 LG |
2153 | int ret; |
2154 | ||
103d84a3 | 2155 | dev_dbg(fe->dev, "ASoC: runtime %s open on FE %s\n", |
618dae11 LG |
2156 | stream ? "capture" : "playback", fe->dai_link->name); |
2157 | ||
2158 | /* Only start the BE if the FE is ready */ | |
2159 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_FREE || | |
2160 | fe->dpcm[stream].state == SND_SOC_DPCM_STATE_CLOSE) | |
2161 | return -EINVAL; | |
2162 | ||
2163 | /* startup must always be called for new BEs */ | |
2164 | ret = dpcm_be_dai_startup(fe, stream); | |
fffc0ca2 | 2165 | if (ret < 0) |
618dae11 | 2166 | goto disconnect; |
618dae11 LG |
2167 | |
2168 | /* keep going if FE state is > open */ | |
2169 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_OPEN) | |
2170 | return 0; | |
01d7584c | 2171 | |
618dae11 | 2172 | ret = dpcm_be_dai_hw_params(fe, stream); |
fffc0ca2 | 2173 | if (ret < 0) |
618dae11 | 2174 | goto close; |
618dae11 LG |
2175 | |
2176 | /* keep going if FE state is > hw_params */ | |
2177 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_PARAMS) | |
2178 | return 0; | |
2179 | ||
2180 | ||
2181 | ret = dpcm_be_dai_prepare(fe, stream); | |
fffc0ca2 | 2182 | if (ret < 0) |
618dae11 | 2183 | goto hw_free; |
618dae11 LG |
2184 | |
2185 | /* run the stream event for each BE */ | |
2186 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_NOP); | |
2187 | ||
2188 | /* keep going if FE state is > prepare */ | |
2189 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_PREPARE || | |
2190 | fe->dpcm[stream].state == SND_SOC_DPCM_STATE_STOP) | |
2191 | return 0; | |
2192 | ||
07bf84aa LG |
2193 | if (trigger == SND_SOC_DPCM_TRIGGER_BESPOKE) { |
2194 | /* call trigger on the frontend - FE takes care of all BE triggers */ | |
103d84a3 | 2195 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd start\n", |
07bf84aa | 2196 | fe->dai_link->name); |
618dae11 | 2197 | |
07bf84aa LG |
2198 | ret = soc_pcm_bespoke_trigger(substream, SNDRV_PCM_TRIGGER_START); |
2199 | if (ret < 0) { | |
103d84a3 | 2200 | dev_err(fe->dev,"ASoC: bespoke trigger FE failed %d\n", ret); |
07bf84aa LG |
2201 | goto hw_free; |
2202 | } | |
2203 | } else { | |
103d84a3 | 2204 | dev_dbg(fe->dev, "ASoC: trigger FE %s cmd start\n", |
07bf84aa LG |
2205 | fe->dai_link->name); |
2206 | ||
2207 | ret = dpcm_be_dai_trigger(fe, stream, | |
2208 | SNDRV_PCM_TRIGGER_START); | |
2209 | if (ret < 0) { | |
103d84a3 | 2210 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
07bf84aa LG |
2211 | goto hw_free; |
2212 | } | |
618dae11 LG |
2213 | } |
2214 | ||
2215 | return 0; | |
2216 | ||
2217 | hw_free: | |
2218 | dpcm_be_dai_hw_free(fe, stream); | |
2219 | close: | |
2220 | dpcm_be_dai_shutdown(fe, stream); | |
2221 | disconnect: | |
2222 | /* disconnect any non started BEs */ | |
2223 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
2224 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2225 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
2226 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
2227 | } | |
2228 | ||
2229 | return ret; | |
2230 | } | |
2231 | ||
2232 | static int dpcm_run_new_update(struct snd_soc_pcm_runtime *fe, int stream) | |
2233 | { | |
2234 | int ret; | |
2235 | ||
ea9d0d77 | 2236 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_BE); |
618dae11 LG |
2237 | ret = dpcm_run_update_startup(fe, stream); |
2238 | if (ret < 0) | |
103d84a3 | 2239 | dev_err(fe->dev, "ASoC: failed to startup some BEs\n"); |
ea9d0d77 | 2240 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
618dae11 LG |
2241 | |
2242 | return ret; | |
2243 | } | |
2244 | ||
2245 | static int dpcm_run_old_update(struct snd_soc_pcm_runtime *fe, int stream) | |
2246 | { | |
2247 | int ret; | |
2248 | ||
ea9d0d77 | 2249 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_BE); |
618dae11 LG |
2250 | ret = dpcm_run_update_shutdown(fe, stream); |
2251 | if (ret < 0) | |
103d84a3 | 2252 | dev_err(fe->dev, "ASoC: failed to shutdown some BEs\n"); |
ea9d0d77 | 2253 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
618dae11 LG |
2254 | |
2255 | return ret; | |
2256 | } | |
2257 | ||
2258 | /* Called by DAPM mixer/mux changes to update audio routing between PCMs and | |
2259 | * any DAI links. | |
2260 | */ | |
c3f48ae6 | 2261 | int soc_dpcm_runtime_update(struct snd_soc_card *card) |
618dae11 | 2262 | { |
618dae11 LG |
2263 | int i, old, new, paths; |
2264 | ||
618dae11 LG |
2265 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_RUNTIME); |
2266 | for (i = 0; i < card->num_rtd; i++) { | |
2267 | struct snd_soc_dapm_widget_list *list; | |
2268 | struct snd_soc_pcm_runtime *fe = &card->rtd[i]; | |
2269 | ||
2270 | /* make sure link is FE */ | |
2271 | if (!fe->dai_link->dynamic) | |
2272 | continue; | |
2273 | ||
2274 | /* only check active links */ | |
2275 | if (!fe->cpu_dai->active) | |
2276 | continue; | |
2277 | ||
2278 | /* DAPM sync will call this to update DSP paths */ | |
103d84a3 | 2279 | dev_dbg(fe->dev, "ASoC: DPCM runtime update for FE %s\n", |
618dae11 LG |
2280 | fe->dai_link->name); |
2281 | ||
2282 | /* skip if FE doesn't have playback capability */ | |
075207d2 QZ |
2283 | if (!fe->cpu_dai->driver->playback.channels_min |
2284 | || !fe->codec_dai->driver->playback.channels_min) | |
2285 | goto capture; | |
2286 | ||
2287 | /* skip if FE isn't currently playing */ | |
2288 | if (!fe->cpu_dai->playback_active | |
2289 | || !fe->codec_dai->playback_active) | |
618dae11 LG |
2290 | goto capture; |
2291 | ||
2292 | paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_PLAYBACK, &list); | |
2293 | if (paths < 0) { | |
103d84a3 | 2294 | dev_warn(fe->dev, "ASoC: %s no valid %s path\n", |
618dae11 LG |
2295 | fe->dai_link->name, "playback"); |
2296 | mutex_unlock(&card->mutex); | |
2297 | return paths; | |
2298 | } | |
2299 | ||
2300 | /* update any new playback paths */ | |
2301 | new = dpcm_process_paths(fe, SNDRV_PCM_STREAM_PLAYBACK, &list, 1); | |
2302 | if (new) { | |
2303 | dpcm_run_new_update(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2304 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2305 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2306 | } | |
2307 | ||
2308 | /* update any old playback paths */ | |
2309 | old = dpcm_process_paths(fe, SNDRV_PCM_STREAM_PLAYBACK, &list, 0); | |
2310 | if (old) { | |
2311 | dpcm_run_old_update(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2312 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2313 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2314 | } | |
2315 | ||
7ed9de76 | 2316 | dpcm_path_put(&list); |
618dae11 LG |
2317 | capture: |
2318 | /* skip if FE doesn't have capture capability */ | |
075207d2 QZ |
2319 | if (!fe->cpu_dai->driver->capture.channels_min |
2320 | || !fe->codec_dai->driver->capture.channels_min) | |
2321 | continue; | |
2322 | ||
2323 | /* skip if FE isn't currently capturing */ | |
2324 | if (!fe->cpu_dai->capture_active | |
2325 | || !fe->codec_dai->capture_active) | |
618dae11 LG |
2326 | continue; |
2327 | ||
2328 | paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_CAPTURE, &list); | |
2329 | if (paths < 0) { | |
103d84a3 | 2330 | dev_warn(fe->dev, "ASoC: %s no valid %s path\n", |
618dae11 LG |
2331 | fe->dai_link->name, "capture"); |
2332 | mutex_unlock(&card->mutex); | |
2333 | return paths; | |
2334 | } | |
2335 | ||
2336 | /* update any new capture paths */ | |
2337 | new = dpcm_process_paths(fe, SNDRV_PCM_STREAM_CAPTURE, &list, 1); | |
2338 | if (new) { | |
2339 | dpcm_run_new_update(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2340 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2341 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2342 | } | |
2343 | ||
2344 | /* update any old capture paths */ | |
2345 | old = dpcm_process_paths(fe, SNDRV_PCM_STREAM_CAPTURE, &list, 0); | |
2346 | if (old) { | |
2347 | dpcm_run_old_update(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2348 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2349 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2350 | } | |
2351 | ||
2352 | dpcm_path_put(&list); | |
2353 | } | |
2354 | ||
2355 | mutex_unlock(&card->mutex); | |
2356 | return 0; | |
2357 | } | |
01d7584c LG |
2358 | int soc_dpcm_be_digital_mute(struct snd_soc_pcm_runtime *fe, int mute) |
2359 | { | |
2360 | struct snd_soc_dpcm *dpcm; | |
2361 | struct list_head *clients = | |
2362 | &fe->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients; | |
2363 | ||
2364 | list_for_each_entry(dpcm, clients, list_be) { | |
2365 | ||
2366 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2e5894d7 | 2367 | int i; |
01d7584c LG |
2368 | |
2369 | if (be->dai_link->ignore_suspend) | |
2370 | continue; | |
2371 | ||
2e5894d7 BC |
2372 | for (i = 0; i < be->num_codecs; i++) { |
2373 | struct snd_soc_dai *dai = be->codec_dais[i]; | |
2374 | struct snd_soc_dai_driver *drv = dai->driver; | |
2375 | ||
2376 | dev_dbg(be->dev, "ASoC: BE digital mute %s\n", | |
2377 | be->dai_link->name); | |
01d7584c | 2378 | |
2e5894d7 BC |
2379 | if (drv->ops && drv->ops->digital_mute && |
2380 | dai->playback_active) | |
2381 | drv->ops->digital_mute(dai, mute); | |
2382 | } | |
01d7584c LG |
2383 | } |
2384 | ||
2385 | return 0; | |
2386 | } | |
2387 | ||
45c0a188 | 2388 | static int dpcm_fe_dai_open(struct snd_pcm_substream *fe_substream) |
01d7584c LG |
2389 | { |
2390 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
2391 | struct snd_soc_dpcm *dpcm; | |
2392 | struct snd_soc_dapm_widget_list *list; | |
2393 | int ret; | |
2394 | int stream = fe_substream->stream; | |
2395 | ||
2396 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2397 | fe->dpcm[stream].runtime = fe_substream->runtime; | |
2398 | ||
8f70e515 QZ |
2399 | ret = dpcm_path_get(fe, stream, &list); |
2400 | if (ret < 0) { | |
2401 | mutex_unlock(&fe->card->mutex); | |
2402 | return ret; | |
2403 | } else if (ret == 0) { | |
103d84a3 | 2404 | dev_dbg(fe->dev, "ASoC: %s no valid %s route\n", |
01d7584c | 2405 | fe->dai_link->name, stream ? "capture" : "playback"); |
01d7584c LG |
2406 | } |
2407 | ||
2408 | /* calculate valid and active FE <-> BE dpcms */ | |
2409 | dpcm_process_paths(fe, stream, &list, 1); | |
2410 | ||
2411 | ret = dpcm_fe_dai_startup(fe_substream); | |
2412 | if (ret < 0) { | |
2413 | /* clean up all links */ | |
2414 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
2415 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
2416 | ||
2417 | dpcm_be_disconnect(fe, stream); | |
2418 | fe->dpcm[stream].runtime = NULL; | |
2419 | } | |
2420 | ||
2421 | dpcm_clear_pending_state(fe, stream); | |
2422 | dpcm_path_put(&list); | |
2423 | mutex_unlock(&fe->card->mutex); | |
2424 | return ret; | |
2425 | } | |
2426 | ||
45c0a188 | 2427 | static int dpcm_fe_dai_close(struct snd_pcm_substream *fe_substream) |
01d7584c LG |
2428 | { |
2429 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
2430 | struct snd_soc_dpcm *dpcm; | |
2431 | int stream = fe_substream->stream, ret; | |
2432 | ||
2433 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2434 | ret = dpcm_fe_dai_shutdown(fe_substream); | |
2435 | ||
2436 | /* mark FE's links ready to prune */ | |
2437 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
2438 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
2439 | ||
2440 | dpcm_be_disconnect(fe, stream); | |
2441 | ||
2442 | fe->dpcm[stream].runtime = NULL; | |
2443 | mutex_unlock(&fe->card->mutex); | |
2444 | return ret; | |
2445 | } | |
2446 | ||
ddee627c LG |
2447 | /* create a new pcm */ |
2448 | int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) | |
2449 | { | |
ddee627c | 2450 | struct snd_soc_platform *platform = rtd->platform; |
2e5894d7 | 2451 | struct snd_soc_dai *codec_dai; |
ddee627c LG |
2452 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2453 | struct snd_pcm *pcm; | |
2454 | char new_name[64]; | |
2455 | int ret = 0, playback = 0, capture = 0; | |
2e5894d7 | 2456 | int i; |
ddee627c | 2457 | |
01d7584c | 2458 | if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) { |
1e9de42f LG |
2459 | playback = rtd->dai_link->dpcm_playback; |
2460 | capture = rtd->dai_link->dpcm_capture; | |
01d7584c | 2461 | } else { |
2e5894d7 BC |
2462 | for (i = 0; i < rtd->num_codecs; i++) { |
2463 | codec_dai = rtd->codec_dais[i]; | |
2464 | if (codec_dai->driver->playback.channels_min) | |
2465 | playback = 1; | |
2466 | if (codec_dai->driver->capture.channels_min) | |
2467 | capture = 1; | |
2468 | } | |
2469 | ||
2470 | capture = capture && cpu_dai->driver->capture.channels_min; | |
2471 | playback = playback && cpu_dai->driver->playback.channels_min; | |
01d7584c LG |
2472 | } |
2473 | ||
d6bead02 FE |
2474 | if (rtd->dai_link->playback_only) { |
2475 | playback = 1; | |
2476 | capture = 0; | |
2477 | } | |
2478 | ||
2479 | if (rtd->dai_link->capture_only) { | |
2480 | playback = 0; | |
2481 | capture = 1; | |
2482 | } | |
2483 | ||
01d7584c LG |
2484 | /* create the PCM */ |
2485 | if (rtd->dai_link->no_pcm) { | |
2486 | snprintf(new_name, sizeof(new_name), "(%s)", | |
2487 | rtd->dai_link->stream_name); | |
2488 | ||
2489 | ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num, | |
2490 | playback, capture, &pcm); | |
2491 | } else { | |
2492 | if (rtd->dai_link->dynamic) | |
2493 | snprintf(new_name, sizeof(new_name), "%s (*)", | |
2494 | rtd->dai_link->stream_name); | |
2495 | else | |
2496 | snprintf(new_name, sizeof(new_name), "%s %s-%d", | |
2e5894d7 BC |
2497 | rtd->dai_link->stream_name, |
2498 | (rtd->num_codecs > 1) ? | |
2499 | "multicodec" : rtd->codec_dai->name, num); | |
01d7584c LG |
2500 | |
2501 | ret = snd_pcm_new(rtd->card->snd_card, new_name, num, playback, | |
2502 | capture, &pcm); | |
2503 | } | |
ddee627c | 2504 | if (ret < 0) { |
103d84a3 | 2505 | dev_err(rtd->card->dev, "ASoC: can't create pcm for %s\n", |
5cb9b748 | 2506 | rtd->dai_link->name); |
ddee627c LG |
2507 | return ret; |
2508 | } | |
103d84a3 | 2509 | dev_dbg(rtd->card->dev, "ASoC: registered pcm #%d %s\n",num, new_name); |
ddee627c LG |
2510 | |
2511 | /* DAPM dai link stream work */ | |
2512 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
2513 | ||
2514 | rtd->pcm = pcm; | |
2515 | pcm->private_data = rtd; | |
01d7584c LG |
2516 | |
2517 | if (rtd->dai_link->no_pcm) { | |
2518 | if (playback) | |
2519 | pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd; | |
2520 | if (capture) | |
2521 | pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->private_data = rtd; | |
2522 | goto out; | |
2523 | } | |
2524 | ||
2525 | /* ASoC PCM operations */ | |
2526 | if (rtd->dai_link->dynamic) { | |
2527 | rtd->ops.open = dpcm_fe_dai_open; | |
2528 | rtd->ops.hw_params = dpcm_fe_dai_hw_params; | |
2529 | rtd->ops.prepare = dpcm_fe_dai_prepare; | |
2530 | rtd->ops.trigger = dpcm_fe_dai_trigger; | |
2531 | rtd->ops.hw_free = dpcm_fe_dai_hw_free; | |
2532 | rtd->ops.close = dpcm_fe_dai_close; | |
2533 | rtd->ops.pointer = soc_pcm_pointer; | |
be3f3f2c | 2534 | rtd->ops.ioctl = soc_pcm_ioctl; |
01d7584c LG |
2535 | } else { |
2536 | rtd->ops.open = soc_pcm_open; | |
2537 | rtd->ops.hw_params = soc_pcm_hw_params; | |
2538 | rtd->ops.prepare = soc_pcm_prepare; | |
2539 | rtd->ops.trigger = soc_pcm_trigger; | |
2540 | rtd->ops.hw_free = soc_pcm_hw_free; | |
2541 | rtd->ops.close = soc_pcm_close; | |
2542 | rtd->ops.pointer = soc_pcm_pointer; | |
be3f3f2c | 2543 | rtd->ops.ioctl = soc_pcm_ioctl; |
01d7584c LG |
2544 | } |
2545 | ||
ddee627c | 2546 | if (platform->driver->ops) { |
01d7584c LG |
2547 | rtd->ops.ack = platform->driver->ops->ack; |
2548 | rtd->ops.copy = platform->driver->ops->copy; | |
2549 | rtd->ops.silence = platform->driver->ops->silence; | |
2550 | rtd->ops.page = platform->driver->ops->page; | |
2551 | rtd->ops.mmap = platform->driver->ops->mmap; | |
ddee627c LG |
2552 | } |
2553 | ||
2554 | if (playback) | |
01d7584c | 2555 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &rtd->ops); |
ddee627c LG |
2556 | |
2557 | if (capture) | |
01d7584c | 2558 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &rtd->ops); |
ddee627c LG |
2559 | |
2560 | if (platform->driver->pcm_new) { | |
2561 | ret = platform->driver->pcm_new(rtd); | |
2562 | if (ret < 0) { | |
b1bc7b3c MB |
2563 | dev_err(platform->dev, |
2564 | "ASoC: pcm constructor failed: %d\n", | |
2565 | ret); | |
ddee627c LG |
2566 | return ret; |
2567 | } | |
2568 | } | |
2569 | ||
2570 | pcm->private_free = platform->driver->pcm_free; | |
01d7584c | 2571 | out: |
2e5894d7 BC |
2572 | dev_info(rtd->card->dev, "%s <-> %s mapping ok\n", |
2573 | (rtd->num_codecs > 1) ? "multicodec" : rtd->codec_dai->name, | |
2574 | cpu_dai->name); | |
ddee627c LG |
2575 | return ret; |
2576 | } | |
01d7584c LG |
2577 | |
2578 | /* is the current PCM operation for this FE ? */ | |
2579 | int snd_soc_dpcm_fe_can_update(struct snd_soc_pcm_runtime *fe, int stream) | |
2580 | { | |
2581 | if (fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) | |
2582 | return 1; | |
2583 | return 0; | |
2584 | } | |
2585 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_fe_can_update); | |
2586 | ||
2587 | /* is the current PCM operation for this BE ? */ | |
2588 | int snd_soc_dpcm_be_can_update(struct snd_soc_pcm_runtime *fe, | |
2589 | struct snd_soc_pcm_runtime *be, int stream) | |
2590 | { | |
2591 | if ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) || | |
2592 | ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_BE) && | |
2593 | be->dpcm[stream].runtime_update)) | |
2594 | return 1; | |
2595 | return 0; | |
2596 | } | |
2597 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_can_update); | |
2598 | ||
2599 | /* get the substream for this BE */ | |
2600 | struct snd_pcm_substream * | |
2601 | snd_soc_dpcm_get_substream(struct snd_soc_pcm_runtime *be, int stream) | |
2602 | { | |
2603 | return be->pcm->streams[stream].substream; | |
2604 | } | |
2605 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_get_substream); | |
2606 | ||
2607 | /* get the BE runtime state */ | |
2608 | enum snd_soc_dpcm_state | |
2609 | snd_soc_dpcm_be_get_state(struct snd_soc_pcm_runtime *be, int stream) | |
2610 | { | |
2611 | return be->dpcm[stream].state; | |
2612 | } | |
2613 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_get_state); | |
2614 | ||
2615 | /* set the BE runtime state */ | |
2616 | void snd_soc_dpcm_be_set_state(struct snd_soc_pcm_runtime *be, | |
2617 | int stream, enum snd_soc_dpcm_state state) | |
2618 | { | |
2619 | be->dpcm[stream].state = state; | |
2620 | } | |
2621 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_set_state); | |
2622 | ||
2623 | /* | |
2624 | * We can only hw_free, stop, pause or suspend a BE DAI if any of it's FE | |
2625 | * are not running, paused or suspended for the specified stream direction. | |
2626 | */ | |
2627 | int snd_soc_dpcm_can_be_free_stop(struct snd_soc_pcm_runtime *fe, | |
2628 | struct snd_soc_pcm_runtime *be, int stream) | |
2629 | { | |
2630 | struct snd_soc_dpcm *dpcm; | |
2631 | int state; | |
2632 | ||
2633 | list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { | |
2634 | ||
2635 | if (dpcm->fe == fe) | |
2636 | continue; | |
2637 | ||
2638 | state = dpcm->fe->dpcm[stream].state; | |
2639 | if (state == SND_SOC_DPCM_STATE_START || | |
2640 | state == SND_SOC_DPCM_STATE_PAUSED || | |
2641 | state == SND_SOC_DPCM_STATE_SUSPEND) | |
2642 | return 0; | |
2643 | } | |
2644 | ||
2645 | /* it's safe to free/stop this BE DAI */ | |
2646 | return 1; | |
2647 | } | |
2648 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_free_stop); | |
2649 | ||
2650 | /* | |
2651 | * We can only change hw params a BE DAI if any of it's FE are not prepared, | |
2652 | * running, paused or suspended for the specified stream direction. | |
2653 | */ | |
2654 | int snd_soc_dpcm_can_be_params(struct snd_soc_pcm_runtime *fe, | |
2655 | struct snd_soc_pcm_runtime *be, int stream) | |
2656 | { | |
2657 | struct snd_soc_dpcm *dpcm; | |
2658 | int state; | |
2659 | ||
2660 | list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { | |
2661 | ||
2662 | if (dpcm->fe == fe) | |
2663 | continue; | |
2664 | ||
2665 | state = dpcm->fe->dpcm[stream].state; | |
2666 | if (state == SND_SOC_DPCM_STATE_START || | |
2667 | state == SND_SOC_DPCM_STATE_PAUSED || | |
2668 | state == SND_SOC_DPCM_STATE_SUSPEND || | |
2669 | state == SND_SOC_DPCM_STATE_PREPARE) | |
2670 | return 0; | |
2671 | } | |
2672 | ||
2673 | /* it's safe to change hw_params */ | |
2674 | return 1; | |
2675 | } | |
2676 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_params); | |
f86dcef8 | 2677 | |
07bf84aa LG |
2678 | int snd_soc_platform_trigger(struct snd_pcm_substream *substream, |
2679 | int cmd, struct snd_soc_platform *platform) | |
2680 | { | |
c5914b0a | 2681 | if (platform->driver->ops && platform->driver->ops->trigger) |
07bf84aa LG |
2682 | return platform->driver->ops->trigger(substream, cmd); |
2683 | return 0; | |
2684 | } | |
2685 | EXPORT_SYMBOL_GPL(snd_soc_platform_trigger); | |
2686 | ||
f86dcef8 LG |
2687 | #ifdef CONFIG_DEBUG_FS |
2688 | static char *dpcm_state_string(enum snd_soc_dpcm_state state) | |
2689 | { | |
2690 | switch (state) { | |
2691 | case SND_SOC_DPCM_STATE_NEW: | |
2692 | return "new"; | |
2693 | case SND_SOC_DPCM_STATE_OPEN: | |
2694 | return "open"; | |
2695 | case SND_SOC_DPCM_STATE_HW_PARAMS: | |
2696 | return "hw_params"; | |
2697 | case SND_SOC_DPCM_STATE_PREPARE: | |
2698 | return "prepare"; | |
2699 | case SND_SOC_DPCM_STATE_START: | |
2700 | return "start"; | |
2701 | case SND_SOC_DPCM_STATE_STOP: | |
2702 | return "stop"; | |
2703 | case SND_SOC_DPCM_STATE_SUSPEND: | |
2704 | return "suspend"; | |
2705 | case SND_SOC_DPCM_STATE_PAUSED: | |
2706 | return "paused"; | |
2707 | case SND_SOC_DPCM_STATE_HW_FREE: | |
2708 | return "hw_free"; | |
2709 | case SND_SOC_DPCM_STATE_CLOSE: | |
2710 | return "close"; | |
2711 | } | |
2712 | ||
2713 | return "unknown"; | |
2714 | } | |
2715 | ||
f86dcef8 LG |
2716 | static ssize_t dpcm_show_state(struct snd_soc_pcm_runtime *fe, |
2717 | int stream, char *buf, size_t size) | |
2718 | { | |
2719 | struct snd_pcm_hw_params *params = &fe->dpcm[stream].hw_params; | |
2720 | struct snd_soc_dpcm *dpcm; | |
2721 | ssize_t offset = 0; | |
2722 | ||
2723 | /* FE state */ | |
2724 | offset += snprintf(buf + offset, size - offset, | |
2725 | "[%s - %s]\n", fe->dai_link->name, | |
2726 | stream ? "Capture" : "Playback"); | |
2727 | ||
2728 | offset += snprintf(buf + offset, size - offset, "State: %s\n", | |
2729 | dpcm_state_string(fe->dpcm[stream].state)); | |
2730 | ||
2731 | if ((fe->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) && | |
2732 | (fe->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP)) | |
2733 | offset += snprintf(buf + offset, size - offset, | |
2734 | "Hardware Params: " | |
2735 | "Format = %s, Channels = %d, Rate = %d\n", | |
2736 | snd_pcm_format_name(params_format(params)), | |
2737 | params_channels(params), | |
2738 | params_rate(params)); | |
2739 | ||
2740 | /* BEs state */ | |
2741 | offset += snprintf(buf + offset, size - offset, "Backends:\n"); | |
2742 | ||
2743 | if (list_empty(&fe->dpcm[stream].be_clients)) { | |
2744 | offset += snprintf(buf + offset, size - offset, | |
2745 | " No active DSP links\n"); | |
2746 | goto out; | |
2747 | } | |
2748 | ||
2749 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
2750 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2751 | params = &dpcm->hw_params; | |
2752 | ||
2753 | offset += snprintf(buf + offset, size - offset, | |
2754 | "- %s\n", be->dai_link->name); | |
2755 | ||
2756 | offset += snprintf(buf + offset, size - offset, | |
2757 | " State: %s\n", | |
2758 | dpcm_state_string(be->dpcm[stream].state)); | |
2759 | ||
2760 | if ((be->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) && | |
2761 | (be->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP)) | |
2762 | offset += snprintf(buf + offset, size - offset, | |
2763 | " Hardware Params: " | |
2764 | "Format = %s, Channels = %d, Rate = %d\n", | |
2765 | snd_pcm_format_name(params_format(params)), | |
2766 | params_channels(params), | |
2767 | params_rate(params)); | |
2768 | } | |
2769 | ||
2770 | out: | |
2771 | return offset; | |
2772 | } | |
2773 | ||
2774 | static ssize_t dpcm_state_read_file(struct file *file, char __user *user_buf, | |
2775 | size_t count, loff_t *ppos) | |
2776 | { | |
2777 | struct snd_soc_pcm_runtime *fe = file->private_data; | |
2778 | ssize_t out_count = PAGE_SIZE, offset = 0, ret = 0; | |
2779 | char *buf; | |
2780 | ||
2781 | buf = kmalloc(out_count, GFP_KERNEL); | |
2782 | if (!buf) | |
2783 | return -ENOMEM; | |
2784 | ||
2785 | if (fe->cpu_dai->driver->playback.channels_min) | |
2786 | offset += dpcm_show_state(fe, SNDRV_PCM_STREAM_PLAYBACK, | |
2787 | buf + offset, out_count - offset); | |
2788 | ||
2789 | if (fe->cpu_dai->driver->capture.channels_min) | |
2790 | offset += dpcm_show_state(fe, SNDRV_PCM_STREAM_CAPTURE, | |
2791 | buf + offset, out_count - offset); | |
2792 | ||
f57b8488 | 2793 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, offset); |
f86dcef8 | 2794 | |
f57b8488 LG |
2795 | kfree(buf); |
2796 | return ret; | |
f86dcef8 LG |
2797 | } |
2798 | ||
2799 | static const struct file_operations dpcm_state_fops = { | |
f57b8488 | 2800 | .open = simple_open, |
f86dcef8 LG |
2801 | .read = dpcm_state_read_file, |
2802 | .llseek = default_llseek, | |
2803 | }; | |
2804 | ||
2805 | int soc_dpcm_debugfs_add(struct snd_soc_pcm_runtime *rtd) | |
2806 | { | |
b3bba9a1 MB |
2807 | if (!rtd->dai_link) |
2808 | return 0; | |
2809 | ||
f86dcef8 LG |
2810 | rtd->debugfs_dpcm_root = debugfs_create_dir(rtd->dai_link->name, |
2811 | rtd->card->debugfs_card_root); | |
2812 | if (!rtd->debugfs_dpcm_root) { | |
2813 | dev_dbg(rtd->dev, | |
2814 | "ASoC: Failed to create dpcm debugfs directory %s\n", | |
2815 | rtd->dai_link->name); | |
2816 | return -EINVAL; | |
2817 | } | |
2818 | ||
f57b8488 | 2819 | rtd->debugfs_dpcm_state = debugfs_create_file("state", 0444, |
f86dcef8 LG |
2820 | rtd->debugfs_dpcm_root, |
2821 | rtd, &dpcm_state_fops); | |
2822 | ||
2823 | return 0; | |
2824 | } | |
2825 | #endif |