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ed517582 KM |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | // | |
3 | // soc-pcm.c -- ALSA SoC PCM | |
4 | // | |
5 | // Copyright 2005 Wolfson Microelectronics PLC. | |
6 | // Copyright 2005 Openedhand Ltd. | |
7 | // Copyright (C) 2010 Slimlogic Ltd. | |
8 | // Copyright (C) 2010 Texas Instruments Inc. | |
9 | // | |
10 | // Authors: Liam Girdwood <lrg@ti.com> | |
11 | // Mark Brown <broonie@opensource.wolfsonmicro.com> | |
ddee627c LG |
12 | |
13 | #include <linux/kernel.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/delay.h> | |
988e8cc4 | 16 | #include <linux/pinctrl/consumer.h> |
d6652ef8 | 17 | #include <linux/pm_runtime.h> |
ddee627c LG |
18 | #include <linux/slab.h> |
19 | #include <linux/workqueue.h> | |
01d7584c | 20 | #include <linux/export.h> |
f86dcef8 | 21 | #include <linux/debugfs.h> |
ddee627c LG |
22 | #include <sound/core.h> |
23 | #include <sound/pcm.h> | |
24 | #include <sound/pcm_params.h> | |
25 | #include <sound/soc.h> | |
01d7584c | 26 | #include <sound/soc-dpcm.h> |
ddee627c LG |
27 | #include <sound/initval.h> |
28 | ||
01d7584c LG |
29 | #define DPCM_MAX_BE_USERS 8 |
30 | ||
24894b76 LPC |
31 | /** |
32 | * snd_soc_runtime_activate() - Increment active count for PCM runtime components | |
33 | * @rtd: ASoC PCM runtime that is activated | |
34 | * @stream: Direction of the PCM stream | |
35 | * | |
36 | * Increments the active count for all the DAIs and components attached to a PCM | |
37 | * runtime. Should typically be called when a stream is opened. | |
38 | * | |
72b745e3 | 39 | * Must be called with the rtd->card->pcm_mutex being held |
24894b76 LPC |
40 | */ |
41 | void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream) | |
42 | { | |
43 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
0b7990e3 | 44 | struct snd_soc_dai *codec_dai; |
2e5894d7 | 45 | int i; |
24894b76 | 46 | |
72b745e3 | 47 | lockdep_assert_held(&rtd->card->pcm_mutex); |
24894b76 LPC |
48 | |
49 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
50 | cpu_dai->playback_active++; | |
0b7990e3 KM |
51 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
52 | codec_dai->playback_active++; | |
24894b76 LPC |
53 | } else { |
54 | cpu_dai->capture_active++; | |
0b7990e3 KM |
55 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
56 | codec_dai->capture_active++; | |
24894b76 LPC |
57 | } |
58 | ||
59 | cpu_dai->active++; | |
cdde4ccb | 60 | cpu_dai->component->active++; |
0b7990e3 KM |
61 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
62 | codec_dai->active++; | |
63 | codec_dai->component->active++; | |
2e5894d7 | 64 | } |
24894b76 LPC |
65 | } |
66 | ||
67 | /** | |
68 | * snd_soc_runtime_deactivate() - Decrement active count for PCM runtime components | |
69 | * @rtd: ASoC PCM runtime that is deactivated | |
70 | * @stream: Direction of the PCM stream | |
71 | * | |
72 | * Decrements the active count for all the DAIs and components attached to a PCM | |
73 | * runtime. Should typically be called when a stream is closed. | |
74 | * | |
72b745e3 | 75 | * Must be called with the rtd->card->pcm_mutex being held |
24894b76 LPC |
76 | */ |
77 | void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream) | |
78 | { | |
79 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
0b7990e3 | 80 | struct snd_soc_dai *codec_dai; |
2e5894d7 | 81 | int i; |
24894b76 | 82 | |
72b745e3 | 83 | lockdep_assert_held(&rtd->card->pcm_mutex); |
24894b76 LPC |
84 | |
85 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
86 | cpu_dai->playback_active--; | |
0b7990e3 KM |
87 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
88 | codec_dai->playback_active--; | |
24894b76 LPC |
89 | } else { |
90 | cpu_dai->capture_active--; | |
0b7990e3 KM |
91 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
92 | codec_dai->capture_active--; | |
24894b76 LPC |
93 | } |
94 | ||
95 | cpu_dai->active--; | |
cdde4ccb | 96 | cpu_dai->component->active--; |
0b7990e3 KM |
97 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
98 | codec_dai->component->active--; | |
99 | codec_dai->active--; | |
2e5894d7 | 100 | } |
24894b76 LPC |
101 | } |
102 | ||
208a1589 LPC |
103 | /** |
104 | * snd_soc_runtime_ignore_pmdown_time() - Check whether to ignore the power down delay | |
105 | * @rtd: The ASoC PCM runtime that should be checked. | |
106 | * | |
107 | * This function checks whether the power down delay should be ignored for a | |
108 | * specific PCM runtime. Returns true if the delay is 0, if it the DAI link has | |
109 | * been configured to ignore the delay, or if none of the components benefits | |
110 | * from having the delay. | |
111 | */ | |
112 | bool snd_soc_runtime_ignore_pmdown_time(struct snd_soc_pcm_runtime *rtd) | |
113 | { | |
fbb16563 KM |
114 | struct snd_soc_rtdcom_list *rtdcom; |
115 | struct snd_soc_component *component; | |
2e5894d7 BC |
116 | bool ignore = true; |
117 | ||
208a1589 LPC |
118 | if (!rtd->pmdown_time || rtd->dai_link->ignore_pmdown_time) |
119 | return true; | |
120 | ||
fbb16563 KM |
121 | for_each_rtdcom(rtd, rtdcom) { |
122 | component = rtdcom->component; | |
123 | ||
72c38184 | 124 | ignore &= !component->driver->use_pmdown_time; |
fbb16563 KM |
125 | } |
126 | ||
fbb16563 | 127 | return 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 | ||
8d6258a4 | 159 | for_each_dpcm_be(fe, dir, dpcm) { |
01d7584c LG |
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 | ||
b1cd2e34 BG |
166 | if ((event == SND_SOC_DAPM_STREAM_STOP) && |
167 | (be->dpcm[dir].users >= 1)) | |
168 | continue; | |
169 | ||
01d7584c LG |
170 | snd_soc_dapm_stream_event(be, dir, event); |
171 | } | |
172 | ||
173 | snd_soc_dapm_stream_event(fe, dir, event); | |
174 | ||
175 | return 0; | |
176 | } | |
177 | ||
17841020 DA |
178 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream, |
179 | struct snd_soc_dai *soc_dai) | |
ddee627c LG |
180 | { |
181 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
ddee627c LG |
182 | int ret; |
183 | ||
3635bf09 NC |
184 | if (soc_dai->rate && (soc_dai->driver->symmetric_rates || |
185 | rtd->dai_link->symmetric_rates)) { | |
186 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %dHz rate\n", | |
187 | soc_dai->rate); | |
188 | ||
4dcdd43b | 189 | ret = snd_pcm_hw_constraint_single(substream->runtime, |
3635bf09 | 190 | SNDRV_PCM_HW_PARAM_RATE, |
4dcdd43b | 191 | soc_dai->rate); |
3635bf09 NC |
192 | if (ret < 0) { |
193 | dev_err(soc_dai->dev, | |
194 | "ASoC: Unable to apply rate constraint: %d\n", | |
195 | ret); | |
196 | return ret; | |
197 | } | |
198 | } | |
ddee627c | 199 | |
3635bf09 NC |
200 | if (soc_dai->channels && (soc_dai->driver->symmetric_channels || |
201 | rtd->dai_link->symmetric_channels)) { | |
202 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %d channel(s)\n", | |
203 | soc_dai->channels); | |
ddee627c | 204 | |
4dcdd43b | 205 | ret = snd_pcm_hw_constraint_single(substream->runtime, |
3635bf09 | 206 | SNDRV_PCM_HW_PARAM_CHANNELS, |
3635bf09 NC |
207 | soc_dai->channels); |
208 | if (ret < 0) { | |
209 | dev_err(soc_dai->dev, | |
210 | "ASoC: Unable to apply channel symmetry constraint: %d\n", | |
211 | ret); | |
212 | return ret; | |
213 | } | |
ddee627c LG |
214 | } |
215 | ||
3635bf09 NC |
216 | if (soc_dai->sample_bits && (soc_dai->driver->symmetric_samplebits || |
217 | rtd->dai_link->symmetric_samplebits)) { | |
218 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %d sample bits\n", | |
219 | soc_dai->sample_bits); | |
ddee627c | 220 | |
4dcdd43b | 221 | ret = snd_pcm_hw_constraint_single(substream->runtime, |
3635bf09 | 222 | SNDRV_PCM_HW_PARAM_SAMPLE_BITS, |
3635bf09 NC |
223 | soc_dai->sample_bits); |
224 | if (ret < 0) { | |
225 | dev_err(soc_dai->dev, | |
226 | "ASoC: Unable to apply sample bits symmetry constraint: %d\n", | |
227 | ret); | |
228 | return ret; | |
229 | } | |
ddee627c LG |
230 | } |
231 | ||
232 | return 0; | |
233 | } | |
234 | ||
3635bf09 NC |
235 | static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream, |
236 | struct snd_pcm_hw_params *params) | |
237 | { | |
238 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
239 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
0b7990e3 | 240 | struct snd_soc_dai *codec_dai; |
2e5894d7 | 241 | unsigned int rate, channels, sample_bits, symmetry, i; |
3635bf09 NC |
242 | |
243 | rate = params_rate(params); | |
244 | channels = params_channels(params); | |
245 | sample_bits = snd_pcm_format_physical_width(params_format(params)); | |
246 | ||
247 | /* reject unmatched parameters when applying symmetry */ | |
248 | symmetry = cpu_dai->driver->symmetric_rates || | |
3635bf09 | 249 | rtd->dai_link->symmetric_rates; |
2e5894d7 | 250 | |
0b7990e3 KM |
251 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
252 | symmetry |= codec_dai->driver->symmetric_rates; | |
2e5894d7 | 253 | |
3635bf09 NC |
254 | if (symmetry && cpu_dai->rate && cpu_dai->rate != rate) { |
255 | dev_err(rtd->dev, "ASoC: unmatched rate symmetry: %d - %d\n", | |
256 | cpu_dai->rate, rate); | |
257 | return -EINVAL; | |
ddee627c LG |
258 | } |
259 | ||
3635bf09 | 260 | symmetry = cpu_dai->driver->symmetric_channels || |
3635bf09 | 261 | rtd->dai_link->symmetric_channels; |
2e5894d7 | 262 | |
0b7990e3 KM |
263 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
264 | symmetry |= codec_dai->driver->symmetric_channels; | |
2e5894d7 | 265 | |
3635bf09 NC |
266 | if (symmetry && cpu_dai->channels && cpu_dai->channels != channels) { |
267 | dev_err(rtd->dev, "ASoC: unmatched channel symmetry: %d - %d\n", | |
268 | cpu_dai->channels, channels); | |
269 | return -EINVAL; | |
270 | } | |
ddee627c | 271 | |
3635bf09 | 272 | symmetry = cpu_dai->driver->symmetric_samplebits || |
3635bf09 | 273 | rtd->dai_link->symmetric_samplebits; |
2e5894d7 | 274 | |
0b7990e3 KM |
275 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
276 | symmetry |= codec_dai->driver->symmetric_samplebits; | |
2e5894d7 | 277 | |
3635bf09 NC |
278 | if (symmetry && cpu_dai->sample_bits && cpu_dai->sample_bits != sample_bits) { |
279 | dev_err(rtd->dev, "ASoC: unmatched sample bits symmetry: %d - %d\n", | |
280 | cpu_dai->sample_bits, sample_bits); | |
281 | return -EINVAL; | |
ddee627c LG |
282 | } |
283 | ||
284 | return 0; | |
285 | } | |
286 | ||
62e5f676 LPC |
287 | static bool soc_pcm_has_symmetry(struct snd_pcm_substream *substream) |
288 | { | |
289 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
290 | struct snd_soc_dai_driver *cpu_driver = rtd->cpu_dai->driver; | |
62e5f676 | 291 | struct snd_soc_dai_link *link = rtd->dai_link; |
0b7990e3 | 292 | struct snd_soc_dai *codec_dai; |
2e5894d7 | 293 | unsigned int symmetry, i; |
62e5f676 | 294 | |
2e5894d7 BC |
295 | symmetry = cpu_driver->symmetric_rates || link->symmetric_rates || |
296 | cpu_driver->symmetric_channels || link->symmetric_channels || | |
297 | cpu_driver->symmetric_samplebits || link->symmetric_samplebits; | |
62e5f676 | 298 | |
0b7990e3 | 299 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
2e5894d7 | 300 | symmetry = symmetry || |
0b7990e3 KM |
301 | codec_dai->driver->symmetric_rates || |
302 | codec_dai->driver->symmetric_channels || | |
303 | codec_dai->driver->symmetric_samplebits; | |
2e5894d7 BC |
304 | |
305 | return symmetry; | |
62e5f676 LPC |
306 | } |
307 | ||
2e5894d7 | 308 | static void soc_pcm_set_msb(struct snd_pcm_substream *substream, int bits) |
58ba9b25 | 309 | { |
2e5894d7 | 310 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
c6068d3a | 311 | int ret; |
58ba9b25 MB |
312 | |
313 | if (!bits) | |
314 | return; | |
315 | ||
0e2a3751 LPC |
316 | ret = snd_pcm_hw_constraint_msbits(substream->runtime, 0, 0, bits); |
317 | if (ret != 0) | |
318 | dev_warn(rtd->dev, "ASoC: Failed to set MSB %d: %d\n", | |
319 | bits, ret); | |
58ba9b25 MB |
320 | } |
321 | ||
c8dd1fec BC |
322 | static void soc_pcm_apply_msb(struct snd_pcm_substream *substream) |
323 | { | |
324 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
325 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 BC |
326 | struct snd_soc_dai *codec_dai; |
327 | int i; | |
c8dd1fec BC |
328 | unsigned int bits = 0, cpu_bits; |
329 | ||
330 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
0b7990e3 | 331 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
2e5894d7 BC |
332 | if (codec_dai->driver->playback.sig_bits == 0) { |
333 | bits = 0; | |
334 | break; | |
335 | } | |
336 | bits = max(codec_dai->driver->playback.sig_bits, bits); | |
337 | } | |
c8dd1fec BC |
338 | cpu_bits = cpu_dai->driver->playback.sig_bits; |
339 | } else { | |
0b7990e3 | 340 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
5e63dfcc | 341 | if (codec_dai->driver->capture.sig_bits == 0) { |
2e5894d7 BC |
342 | bits = 0; |
343 | break; | |
344 | } | |
345 | bits = max(codec_dai->driver->capture.sig_bits, bits); | |
346 | } | |
c8dd1fec BC |
347 | cpu_bits = cpu_dai->driver->capture.sig_bits; |
348 | } | |
349 | ||
2e5894d7 BC |
350 | soc_pcm_set_msb(substream, bits); |
351 | soc_pcm_set_msb(substream, cpu_bits); | |
c8dd1fec BC |
352 | } |
353 | ||
2e5894d7 | 354 | static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) |
bd477c31 | 355 | { |
2e5894d7 | 356 | struct snd_pcm_runtime *runtime = substream->runtime; |
78e45c99 | 357 | struct snd_pcm_hardware *hw = &runtime->hw; |
2e5894d7 | 358 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
0b7990e3 | 359 | struct snd_soc_dai *codec_dai; |
2e5894d7 BC |
360 | struct snd_soc_dai_driver *cpu_dai_drv = rtd->cpu_dai->driver; |
361 | struct snd_soc_dai_driver *codec_dai_drv; | |
362 | struct snd_soc_pcm_stream *codec_stream; | |
363 | struct snd_soc_pcm_stream *cpu_stream; | |
364 | unsigned int chan_min = 0, chan_max = UINT_MAX; | |
365 | unsigned int rate_min = 0, rate_max = UINT_MAX; | |
366 | unsigned int rates = UINT_MAX; | |
367 | u64 formats = ULLONG_MAX; | |
368 | int i; | |
78e45c99 | 369 | |
2e5894d7 BC |
370 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
371 | cpu_stream = &cpu_dai_drv->playback; | |
16d7ea91 | 372 | else |
2e5894d7 | 373 | cpu_stream = &cpu_dai_drv->capture; |
78e45c99 | 374 | |
2e5894d7 | 375 | /* first calculate min/max only for CODECs in the DAI link */ |
0b7990e3 | 376 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
cde79035 RW |
377 | |
378 | /* | |
379 | * Skip CODECs which don't support the current stream type. | |
380 | * Otherwise, since the rate, channel, and format values will | |
381 | * zero in that case, we would have no usable settings left, | |
382 | * causing the resulting setup to fail. | |
383 | * At least one CODEC should match, otherwise we should have | |
384 | * bailed out on a higher level, since there would be no | |
385 | * CODEC to support the transfer direction in that case. | |
386 | */ | |
0b7990e3 | 387 | if (!snd_soc_dai_stream_valid(codec_dai, |
cde79035 RW |
388 | substream->stream)) |
389 | continue; | |
390 | ||
0b7990e3 | 391 | codec_dai_drv = codec_dai->driver; |
2e5894d7 BC |
392 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
393 | codec_stream = &codec_dai_drv->playback; | |
394 | else | |
395 | codec_stream = &codec_dai_drv->capture; | |
396 | chan_min = max(chan_min, codec_stream->channels_min); | |
397 | chan_max = min(chan_max, codec_stream->channels_max); | |
398 | rate_min = max(rate_min, codec_stream->rate_min); | |
399 | rate_max = min_not_zero(rate_max, codec_stream->rate_max); | |
400 | formats &= codec_stream->formats; | |
401 | rates = snd_pcm_rate_mask_intersect(codec_stream->rates, rates); | |
402 | } | |
403 | ||
404 | /* | |
405 | * chan min/max cannot be enforced if there are multiple CODEC DAIs | |
406 | * connected to a single CPU DAI, use CPU DAI's directly and let | |
407 | * channel allocation be fixed up later | |
408 | */ | |
409 | if (rtd->num_codecs > 1) { | |
410 | chan_min = cpu_stream->channels_min; | |
411 | chan_max = cpu_stream->channels_max; | |
412 | } | |
413 | ||
414 | hw->channels_min = max(chan_min, cpu_stream->channels_min); | |
415 | hw->channels_max = min(chan_max, cpu_stream->channels_max); | |
416 | if (hw->formats) | |
417 | hw->formats &= formats & cpu_stream->formats; | |
418 | else | |
419 | hw->formats = formats & cpu_stream->formats; | |
420 | hw->rates = snd_pcm_rate_mask_intersect(rates, cpu_stream->rates); | |
78e45c99 LPC |
421 | |
422 | snd_pcm_limit_hw_rates(runtime); | |
423 | ||
424 | hw->rate_min = max(hw->rate_min, cpu_stream->rate_min); | |
2e5894d7 | 425 | hw->rate_min = max(hw->rate_min, rate_min); |
78e45c99 | 426 | hw->rate_max = min_not_zero(hw->rate_max, cpu_stream->rate_max); |
2e5894d7 | 427 | hw->rate_max = min_not_zero(hw->rate_max, rate_max); |
bd477c31 LPC |
428 | } |
429 | ||
e7ecfdb7 KM |
430 | static int soc_pcm_components_open(struct snd_pcm_substream *substream, |
431 | struct snd_soc_component **last) | |
432 | { | |
433 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
434 | struct snd_soc_rtdcom_list *rtdcom; | |
435 | struct snd_soc_component *component; | |
436 | int ret = 0; | |
437 | ||
438 | for_each_rtdcom(rtd, rtdcom) { | |
439 | component = rtdcom->component; | |
440 | *last = component; | |
441 | ||
4a81e8f3 KM |
442 | ret = snd_soc_component_module_get_when_open(component); |
443 | if (ret < 0) { | |
e7ecfdb7 KM |
444 | dev_err(component->dev, |
445 | "ASoC: can't get module %s\n", | |
446 | component->name); | |
4a81e8f3 | 447 | return ret; |
e7ecfdb7 KM |
448 | } |
449 | ||
ae2f4849 | 450 | ret = snd_soc_component_open(component, substream); |
e7ecfdb7 KM |
451 | if (ret < 0) { |
452 | dev_err(component->dev, | |
453 | "ASoC: can't open component %s: %d\n", | |
454 | component->name, ret); | |
455 | return ret; | |
456 | } | |
457 | } | |
458 | *last = NULL; | |
459 | return 0; | |
460 | } | |
461 | ||
244e2936 CK |
462 | static int soc_pcm_components_close(struct snd_pcm_substream *substream, |
463 | struct snd_soc_component *last) | |
464 | { | |
465 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
466 | struct snd_soc_rtdcom_list *rtdcom; | |
467 | struct snd_soc_component *component; | |
3672beb8 | 468 | int ret = 0; |
244e2936 CK |
469 | |
470 | for_each_rtdcom(rtd, rtdcom) { | |
471 | component = rtdcom->component; | |
472 | ||
473 | if (component == last) | |
474 | break; | |
475 | ||
3672beb8 | 476 | ret |= snd_soc_component_close(component, substream); |
4a81e8f3 | 477 | snd_soc_component_module_put_when_close(component); |
244e2936 CK |
478 | } |
479 | ||
3672beb8 | 480 | return ret; |
244e2936 CK |
481 | } |
482 | ||
ddee627c LG |
483 | /* |
484 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
485 | * then initialized and any private data can be allocated. This also calls | |
ef050bec | 486 | * startup for the cpu DAI, component, machine and codec DAI. |
ddee627c LG |
487 | */ |
488 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
489 | { | |
490 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
491 | struct snd_pcm_runtime *runtime = substream->runtime; | |
90be711e KM |
492 | struct snd_soc_component *component; |
493 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c | 494 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
495 | struct snd_soc_dai *codec_dai; |
496 | const char *codec_dai_name = "multicodec"; | |
244e2936 | 497 | int i, ret = 0; |
ddee627c | 498 | |
988e8cc4 | 499 | pinctrl_pm_select_default_state(cpu_dai->dev); |
0b7990e3 KM |
500 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
501 | pinctrl_pm_select_default_state(codec_dai->dev); | |
90be711e KM |
502 | |
503 | for_each_rtdcom(rtd, rtdcom) { | |
504 | component = rtdcom->component; | |
505 | ||
506 | pm_runtime_get_sync(component->dev); | |
507 | } | |
d6652ef8 | 508 | |
72b745e3 | 509 | mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); |
ddee627c LG |
510 | |
511 | /* startup the audio subsystem */ | |
5a52a045 KM |
512 | ret = snd_soc_dai_startup(cpu_dai, substream); |
513 | if (ret < 0) { | |
514 | dev_err(cpu_dai->dev, "ASoC: can't open interface %s: %d\n", | |
515 | cpu_dai->name, ret); | |
516 | goto out; | |
ddee627c LG |
517 | } |
518 | ||
e7ecfdb7 KM |
519 | ret = soc_pcm_components_open(substream, &component); |
520 | if (ret < 0) | |
521 | goto component_err; | |
b8135864 | 522 | |
0b7990e3 | 523 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
5a52a045 KM |
524 | ret = snd_soc_dai_startup(codec_dai, substream); |
525 | if (ret < 0) { | |
526 | dev_err(codec_dai->dev, | |
527 | "ASoC: can't open codec %s: %d\n", | |
528 | codec_dai->name, ret); | |
529 | goto codec_dai_err; | |
ddee627c | 530 | } |
2e5894d7 BC |
531 | |
532 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
533 | codec_dai->tx_mask = 0; | |
534 | else | |
535 | codec_dai->rx_mask = 0; | |
ddee627c LG |
536 | } |
537 | ||
75ab9eb6 | 538 | if (rtd->dai_link->ops->startup) { |
ddee627c LG |
539 | ret = rtd->dai_link->ops->startup(substream); |
540 | if (ret < 0) { | |
103d84a3 | 541 | pr_err("ASoC: %s startup failed: %d\n", |
25bfe662 | 542 | rtd->dai_link->name, ret); |
ddee627c LG |
543 | goto machine_err; |
544 | } | |
545 | } | |
546 | ||
01d7584c LG |
547 | /* Dynamic PCM DAI links compat checks use dynamic capabilities */ |
548 | if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) | |
549 | goto dynamic; | |
550 | ||
ddee627c | 551 | /* Check that the codec and cpu DAIs are compatible */ |
2e5894d7 BC |
552 | soc_pcm_init_runtime_hw(substream); |
553 | ||
554 | if (rtd->num_codecs == 1) | |
555 | codec_dai_name = rtd->codec_dai->name; | |
ddee627c | 556 | |
62e5f676 LPC |
557 | if (soc_pcm_has_symmetry(substream)) |
558 | runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
559 | ||
ddee627c | 560 | ret = -EINVAL; |
ddee627c | 561 | if (!runtime->hw.rates) { |
103d84a3 | 562 | printk(KERN_ERR "ASoC: %s <-> %s No matching rates\n", |
2e5894d7 | 563 | codec_dai_name, cpu_dai->name); |
ddee627c LG |
564 | goto config_err; |
565 | } | |
566 | if (!runtime->hw.formats) { | |
103d84a3 | 567 | printk(KERN_ERR "ASoC: %s <-> %s No matching formats\n", |
2e5894d7 | 568 | codec_dai_name, cpu_dai->name); |
ddee627c LG |
569 | goto config_err; |
570 | } | |
571 | if (!runtime->hw.channels_min || !runtime->hw.channels_max || | |
572 | runtime->hw.channels_min > runtime->hw.channels_max) { | |
103d84a3 | 573 | printk(KERN_ERR "ASoC: %s <-> %s No matching channels\n", |
2e5894d7 | 574 | codec_dai_name, cpu_dai->name); |
ddee627c LG |
575 | goto config_err; |
576 | } | |
577 | ||
c8dd1fec | 578 | soc_pcm_apply_msb(substream); |
58ba9b25 | 579 | |
ddee627c | 580 | /* Symmetry only applies if we've already got an active stream. */ |
17841020 DA |
581 | if (cpu_dai->active) { |
582 | ret = soc_pcm_apply_symmetry(substream, cpu_dai); | |
583 | if (ret != 0) | |
584 | goto config_err; | |
585 | } | |
586 | ||
0b7990e3 KM |
587 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
588 | if (codec_dai->active) { | |
589 | ret = soc_pcm_apply_symmetry(substream, codec_dai); | |
2e5894d7 BC |
590 | if (ret != 0) |
591 | goto config_err; | |
592 | } | |
ddee627c LG |
593 | } |
594 | ||
103d84a3 | 595 | pr_debug("ASoC: %s <-> %s info:\n", |
2e5894d7 | 596 | codec_dai_name, cpu_dai->name); |
103d84a3 LG |
597 | pr_debug("ASoC: rate mask 0x%x\n", runtime->hw.rates); |
598 | pr_debug("ASoC: min ch %d max ch %d\n", runtime->hw.channels_min, | |
ddee627c | 599 | runtime->hw.channels_max); |
103d84a3 | 600 | pr_debug("ASoC: min rate %d max rate %d\n", runtime->hw.rate_min, |
ddee627c LG |
601 | runtime->hw.rate_max); |
602 | ||
01d7584c | 603 | dynamic: |
24894b76 LPC |
604 | |
605 | snd_soc_runtime_activate(rtd, substream->stream); | |
606 | ||
72b745e3 | 607 | mutex_unlock(&rtd->card->pcm_mutex); |
ddee627c LG |
608 | return 0; |
609 | ||
610 | config_err: | |
75ab9eb6 | 611 | if (rtd->dai_link->ops->shutdown) |
ddee627c LG |
612 | rtd->dai_link->ops->shutdown(substream); |
613 | ||
614 | machine_err: | |
2e5894d7 | 615 | i = rtd->num_codecs; |
ddee627c LG |
616 | |
617 | codec_dai_err: | |
330fcb51 KM |
618 | for_each_rtd_codec_dai_rollback(rtd, i, codec_dai) |
619 | snd_soc_dai_shutdown(codec_dai, substream); | |
2e5894d7 | 620 | |
b8135864 | 621 | component_err: |
244e2936 | 622 | soc_pcm_components_close(substream, component); |
e7ecfdb7 | 623 | |
330fcb51 | 624 | snd_soc_dai_shutdown(cpu_dai, substream); |
ddee627c | 625 | out: |
72b745e3 | 626 | mutex_unlock(&rtd->card->pcm_mutex); |
d6652ef8 | 627 | |
90be711e KM |
628 | for_each_rtdcom(rtd, rtdcom) { |
629 | component = rtdcom->component; | |
630 | ||
631 | pm_runtime_mark_last_busy(component->dev); | |
632 | pm_runtime_put_autosuspend(component->dev); | |
3f809783 SK |
633 | } |
634 | ||
0b7990e3 KM |
635 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
636 | if (!codec_dai->active) | |
637 | pinctrl_pm_select_sleep_state(codec_dai->dev); | |
2e5894d7 | 638 | } |
988e8cc4 NC |
639 | if (!cpu_dai->active) |
640 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
d6652ef8 | 641 | |
ddee627c LG |
642 | return ret; |
643 | } | |
644 | ||
645 | /* | |
646 | * Power down the audio subsystem pmdown_time msecs after close is called. | |
647 | * This is to ensure there are no pops or clicks in between any music tracks | |
648 | * due to DAPM power cycling. | |
649 | */ | |
650 | static void close_delayed_work(struct work_struct *work) | |
651 | { | |
652 | struct snd_soc_pcm_runtime *rtd = | |
653 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
2e5894d7 | 654 | struct snd_soc_dai *codec_dai = rtd->codec_dais[0]; |
ddee627c | 655 | |
72b745e3 | 656 | mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); |
ddee627c | 657 | |
103d84a3 | 658 | dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n", |
ddee627c LG |
659 | codec_dai->driver->playback.stream_name, |
660 | codec_dai->playback_active ? "active" : "inactive", | |
9bffb1fb | 661 | rtd->pop_wait ? "yes" : "no"); |
ddee627c LG |
662 | |
663 | /* are we waiting on this codec DAI stream */ | |
9bffb1fb MLC |
664 | if (rtd->pop_wait == 1) { |
665 | rtd->pop_wait = 0; | |
7bd3a6f3 | 666 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK, |
d9b0951b | 667 | SND_SOC_DAPM_STREAM_STOP); |
ddee627c LG |
668 | } |
669 | ||
72b745e3 | 670 | mutex_unlock(&rtd->card->pcm_mutex); |
ddee627c LG |
671 | } |
672 | ||
a342031c JB |
673 | static void codec2codec_close_delayed_work(struct work_struct *work) |
674 | { | |
675 | /* | |
676 | * Currently nothing to do for c2c links | |
677 | * Since c2c links are internal nodes in the DAPM graph and | |
678 | * don't interface with the outside world or application layer | |
679 | * we don't have to do any special handling on close. | |
680 | */ | |
681 | } | |
682 | ||
ddee627c LG |
683 | /* |
684 | * Called by ALSA when a PCM substream is closed. Private data can be | |
ef050bec | 685 | * freed here. The cpu DAI, codec DAI, machine and components are also |
ddee627c LG |
686 | * shutdown. |
687 | */ | |
91d5e6b4 | 688 | static int soc_pcm_close(struct snd_pcm_substream *substream) |
ddee627c LG |
689 | { |
690 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
90be711e KM |
691 | struct snd_soc_component *component; |
692 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c | 693 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
694 | struct snd_soc_dai *codec_dai; |
695 | int i; | |
ddee627c | 696 | |
72b745e3 | 697 | mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); |
ddee627c | 698 | |
24894b76 | 699 | snd_soc_runtime_deactivate(rtd, substream->stream); |
ddee627c | 700 | |
17841020 DA |
701 | /* clear the corresponding DAIs rate when inactive */ |
702 | if (!cpu_dai->active) | |
703 | cpu_dai->rate = 0; | |
704 | ||
0b7990e3 | 705 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
2e5894d7 BC |
706 | if (!codec_dai->active) |
707 | codec_dai->rate = 0; | |
708 | } | |
25b76791 | 709 | |
ae11601b RB |
710 | snd_soc_dai_digital_mute(cpu_dai, 1, substream->stream); |
711 | ||
330fcb51 | 712 | snd_soc_dai_shutdown(cpu_dai, substream); |
ddee627c | 713 | |
330fcb51 KM |
714 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
715 | snd_soc_dai_shutdown(codec_dai, substream); | |
ddee627c | 716 | |
75ab9eb6 | 717 | if (rtd->dai_link->ops->shutdown) |
ddee627c LG |
718 | rtd->dai_link->ops->shutdown(substream); |
719 | ||
244e2936 | 720 | soc_pcm_components_close(substream, NULL); |
b8135864 | 721 | |
ddee627c | 722 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
208a1589 | 723 | if (snd_soc_runtime_ignore_pmdown_time(rtd)) { |
1d69c5c5 PU |
724 | /* powered down playback stream now */ |
725 | snd_soc_dapm_stream_event(rtd, | |
7bd3a6f3 | 726 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 727 | SND_SOC_DAPM_STREAM_STOP); |
1d69c5c5 PU |
728 | } else { |
729 | /* start delayed pop wq here for playback streams */ | |
9bffb1fb | 730 | rtd->pop_wait = 1; |
d4e1a73a MB |
731 | queue_delayed_work(system_power_efficient_wq, |
732 | &rtd->delayed_work, | |
733 | msecs_to_jiffies(rtd->pmdown_time)); | |
1d69c5c5 | 734 | } |
ddee627c LG |
735 | } else { |
736 | /* capture streams can be powered down now */ | |
7bd3a6f3 | 737 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_CAPTURE, |
d9b0951b | 738 | SND_SOC_DAPM_STREAM_STOP); |
ddee627c LG |
739 | } |
740 | ||
72b745e3 | 741 | mutex_unlock(&rtd->card->pcm_mutex); |
d6652ef8 | 742 | |
90be711e KM |
743 | for_each_rtdcom(rtd, rtdcom) { |
744 | component = rtdcom->component; | |
3f809783 | 745 | |
90be711e KM |
746 | pm_runtime_mark_last_busy(component->dev); |
747 | pm_runtime_put_autosuspend(component->dev); | |
3f809783 SK |
748 | } |
749 | ||
0b7990e3 KM |
750 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
751 | if (!codec_dai->active) | |
752 | pinctrl_pm_select_sleep_state(codec_dai->dev); | |
2e5894d7 | 753 | } |
988e8cc4 NC |
754 | if (!cpu_dai->active) |
755 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
d6652ef8 | 756 | |
ddee627c LG |
757 | return 0; |
758 | } | |
759 | ||
760 | /* | |
761 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
762 | * rate, etc. This function is non atomic and can be called multiple times, | |
763 | * it can refer to the runtime info. | |
764 | */ | |
765 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
766 | { | |
767 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
b8135864 KM |
768 | struct snd_soc_component *component; |
769 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c | 770 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
771 | struct snd_soc_dai *codec_dai; |
772 | int i, ret = 0; | |
ddee627c | 773 | |
72b745e3 | 774 | mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); |
ddee627c | 775 | |
75ab9eb6 | 776 | if (rtd->dai_link->ops->prepare) { |
ddee627c LG |
777 | ret = rtd->dai_link->ops->prepare(substream); |
778 | if (ret < 0) { | |
103d84a3 LG |
779 | dev_err(rtd->card->dev, "ASoC: machine prepare error:" |
780 | " %d\n", ret); | |
ddee627c LG |
781 | goto out; |
782 | } | |
783 | } | |
784 | ||
b8135864 KM |
785 | for_each_rtdcom(rtd, rtdcom) { |
786 | component = rtdcom->component; | |
787 | ||
6d537233 | 788 | ret = snd_soc_component_prepare(component, substream); |
b8135864 KM |
789 | if (ret < 0) { |
790 | dev_err(component->dev, | |
791 | "ASoC: platform prepare error: %d\n", ret); | |
792 | goto out; | |
793 | } | |
794 | } | |
795 | ||
0b7990e3 | 796 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
4beb8e10 | 797 | ret = snd_soc_dai_prepare(codec_dai, substream); |
ddee627c | 798 | if (ret < 0) { |
4beb8e10 KM |
799 | dev_err(codec_dai->dev, |
800 | "ASoC: codec DAI prepare error: %d\n", | |
801 | ret); | |
ddee627c LG |
802 | goto out; |
803 | } | |
804 | } | |
805 | ||
4beb8e10 KM |
806 | ret = snd_soc_dai_prepare(cpu_dai, substream); |
807 | if (ret < 0) { | |
808 | dev_err(cpu_dai->dev, | |
809 | "ASoC: cpu DAI prepare error: %d\n", ret); | |
810 | goto out; | |
811 | } | |
812 | ||
ddee627c LG |
813 | /* cancel any delayed stream shutdown that is pending */ |
814 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
9bffb1fb MLC |
815 | rtd->pop_wait) { |
816 | rtd->pop_wait = 0; | |
ddee627c LG |
817 | cancel_delayed_work(&rtd->delayed_work); |
818 | } | |
819 | ||
d9b0951b LG |
820 | snd_soc_dapm_stream_event(rtd, substream->stream, |
821 | SND_SOC_DAPM_STREAM_START); | |
ddee627c | 822 | |
0b7990e3 KM |
823 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
824 | snd_soc_dai_digital_mute(codec_dai, 0, | |
2e5894d7 | 825 | substream->stream); |
ae11601b | 826 | snd_soc_dai_digital_mute(cpu_dai, 0, substream->stream); |
ddee627c LG |
827 | |
828 | out: | |
72b745e3 | 829 | mutex_unlock(&rtd->card->pcm_mutex); |
ddee627c LG |
830 | return ret; |
831 | } | |
832 | ||
2e5894d7 BC |
833 | static void soc_pcm_codec_params_fixup(struct snd_pcm_hw_params *params, |
834 | unsigned int mask) | |
835 | { | |
836 | struct snd_interval *interval; | |
837 | int channels = hweight_long(mask); | |
838 | ||
839 | interval = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); | |
840 | interval->min = channels; | |
841 | interval->max = channels; | |
842 | } | |
843 | ||
244e2936 CK |
844 | static int soc_pcm_components_hw_free(struct snd_pcm_substream *substream, |
845 | struct snd_soc_component *last) | |
846 | { | |
847 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
848 | struct snd_soc_rtdcom_list *rtdcom; | |
849 | struct snd_soc_component *component; | |
eae7136a | 850 | int ret = 0; |
244e2936 CK |
851 | |
852 | for_each_rtdcom(rtd, rtdcom) { | |
853 | component = rtdcom->component; | |
854 | ||
855 | if (component == last) | |
856 | break; | |
857 | ||
eae7136a | 858 | ret |= snd_soc_component_hw_free(component, substream); |
244e2936 CK |
859 | } |
860 | ||
eae7136a | 861 | return ret; |
244e2936 CK |
862 | } |
863 | ||
ddee627c LG |
864 | /* |
865 | * Called by ALSA when the hardware params are set by application. This | |
866 | * function can also be called multiple times and can allocate buffers | |
867 | * (using snd_pcm_lib_* ). It's non-atomic. | |
868 | */ | |
869 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
870 | struct snd_pcm_hw_params *params) | |
871 | { | |
872 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
b8135864 KM |
873 | struct snd_soc_component *component; |
874 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c | 875 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
0b7990e3 | 876 | struct snd_soc_dai *codec_dai; |
244e2936 | 877 | int i, ret = 0; |
ddee627c | 878 | |
72b745e3 | 879 | mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); |
75ab9eb6 | 880 | if (rtd->dai_link->ops->hw_params) { |
ddee627c LG |
881 | ret = rtd->dai_link->ops->hw_params(substream, params); |
882 | if (ret < 0) { | |
103d84a3 LG |
883 | dev_err(rtd->card->dev, "ASoC: machine hw_params" |
884 | " failed: %d\n", ret); | |
ddee627c LG |
885 | goto out; |
886 | } | |
887 | } | |
888 | ||
0b7990e3 | 889 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
2e5894d7 BC |
890 | struct snd_pcm_hw_params codec_params; |
891 | ||
cde79035 RW |
892 | /* |
893 | * Skip CODECs which don't support the current stream type, | |
894 | * the idea being that if a CODEC is not used for the currently | |
895 | * set up transfer direction, it should not need to be | |
896 | * configured, especially since the configuration used might | |
897 | * not even be supported by that CODEC. There may be cases | |
898 | * however where a CODEC needs to be set up although it is | |
899 | * actually not being used for the transfer, e.g. if a | |
900 | * capture-only CODEC is acting as an LRCLK and/or BCLK master | |
901 | * for the DAI link including a playback-only CODEC. | |
902 | * If this becomes necessary, we will have to augment the | |
903 | * machine driver setup with information on how to act, so | |
904 | * we can do the right thing here. | |
905 | */ | |
906 | if (!snd_soc_dai_stream_valid(codec_dai, substream->stream)) | |
907 | continue; | |
908 | ||
2e5894d7 BC |
909 | /* copy params for each codec */ |
910 | codec_params = *params; | |
911 | ||
912 | /* fixup params based on TDM slot masks */ | |
570f18b6 RW |
913 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && |
914 | codec_dai->tx_mask) | |
2e5894d7 BC |
915 | soc_pcm_codec_params_fixup(&codec_params, |
916 | codec_dai->tx_mask); | |
570f18b6 RW |
917 | |
918 | if (substream->stream == SNDRV_PCM_STREAM_CAPTURE && | |
919 | codec_dai->rx_mask) | |
2e5894d7 BC |
920 | soc_pcm_codec_params_fixup(&codec_params, |
921 | codec_dai->rx_mask); | |
922 | ||
aa6166c2 KM |
923 | ret = snd_soc_dai_hw_params(codec_dai, substream, |
924 | &codec_params); | |
93e6958a | 925 | if(ret < 0) |
ddee627c | 926 | goto codec_err; |
ddee627c | 927 | |
2e5894d7 BC |
928 | codec_dai->rate = params_rate(&codec_params); |
929 | codec_dai->channels = params_channels(&codec_params); | |
930 | codec_dai->sample_bits = snd_pcm_format_physical_width( | |
931 | params_format(&codec_params)); | |
078a85f2 CK |
932 | |
933 | snd_soc_dapm_update_dai(substream, &codec_params, codec_dai); | |
ddee627c LG |
934 | } |
935 | ||
aa6166c2 | 936 | ret = snd_soc_dai_hw_params(cpu_dai, substream, params); |
93e6958a BC |
937 | if (ret < 0) |
938 | goto interface_err; | |
ddee627c | 939 | |
ca58221d KM |
940 | /* store the parameters for each DAIs */ |
941 | cpu_dai->rate = params_rate(params); | |
942 | cpu_dai->channels = params_channels(params); | |
943 | cpu_dai->sample_bits = | |
944 | snd_pcm_format_physical_width(params_format(params)); | |
945 | ||
946 | snd_soc_dapm_update_dai(substream, params, cpu_dai); | |
947 | ||
b8135864 KM |
948 | for_each_rtdcom(rtd, rtdcom) { |
949 | component = rtdcom->component; | |
950 | ||
245c539a | 951 | ret = snd_soc_component_hw_params(component, substream, params); |
244e2936 | 952 | if (ret < 0) { |
b8135864 KM |
953 | dev_err(component->dev, |
954 | "ASoC: %s hw params failed: %d\n", | |
244e2936 CK |
955 | component->name, ret); |
956 | goto component_err; | |
b8135864 KM |
957 | } |
958 | } | |
244e2936 | 959 | component = NULL; |
b8135864 | 960 | |
957ce0c6 | 961 | ret = soc_pcm_params_symmetry(substream, params); |
962 | if (ret) | |
b8135864 | 963 | goto component_err; |
ddee627c | 964 | out: |
72b745e3 | 965 | mutex_unlock(&rtd->card->pcm_mutex); |
ddee627c LG |
966 | return ret; |
967 | ||
b8135864 | 968 | component_err: |
244e2936 | 969 | soc_pcm_components_hw_free(substream, component); |
b8135864 | 970 | |
846faaed | 971 | snd_soc_dai_hw_free(cpu_dai, substream); |
2371abdc | 972 | cpu_dai->rate = 0; |
ddee627c LG |
973 | |
974 | interface_err: | |
2e5894d7 | 975 | i = rtd->num_codecs; |
ddee627c LG |
976 | |
977 | codec_err: | |
6d11b128 | 978 | for_each_rtd_codec_dai_rollback(rtd, i, codec_dai) { |
f47b9ad9 JB |
979 | if (!snd_soc_dai_stream_valid(codec_dai, substream->stream)) |
980 | continue; | |
981 | ||
846faaed | 982 | snd_soc_dai_hw_free(codec_dai, substream); |
2e5894d7 BC |
983 | codec_dai->rate = 0; |
984 | } | |
985 | ||
75ab9eb6 | 986 | if (rtd->dai_link->ops->hw_free) |
ddee627c LG |
987 | rtd->dai_link->ops->hw_free(substream); |
988 | ||
72b745e3 | 989 | mutex_unlock(&rtd->card->pcm_mutex); |
ddee627c LG |
990 | return ret; |
991 | } | |
992 | ||
993 | /* | |
994 | * Frees resources allocated by hw_params, can be called multiple times | |
995 | */ | |
996 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
997 | { | |
998 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
ddee627c | 999 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 | 1000 | struct snd_soc_dai *codec_dai; |
7f62b6ee | 1001 | bool playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; |
2e5894d7 | 1002 | int i; |
ddee627c | 1003 | |
72b745e3 | 1004 | mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); |
ddee627c | 1005 | |
d3383420 NC |
1006 | /* clear the corresponding DAIs parameters when going to be inactive */ |
1007 | if (cpu_dai->active == 1) { | |
1008 | cpu_dai->rate = 0; | |
1009 | cpu_dai->channels = 0; | |
1010 | cpu_dai->sample_bits = 0; | |
1011 | } | |
1012 | ||
0b7990e3 | 1013 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
2e5894d7 BC |
1014 | if (codec_dai->active == 1) { |
1015 | codec_dai->rate = 0; | |
1016 | codec_dai->channels = 0; | |
1017 | codec_dai->sample_bits = 0; | |
1018 | } | |
d3383420 NC |
1019 | } |
1020 | ||
ddee627c | 1021 | /* apply codec digital mute */ |
0b7990e3 KM |
1022 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
1023 | if ((playback && codec_dai->playback_active == 1) || | |
1024 | (!playback && codec_dai->capture_active == 1)) | |
1025 | snd_soc_dai_digital_mute(codec_dai, 1, | |
2e5894d7 BC |
1026 | substream->stream); |
1027 | } | |
ddee627c LG |
1028 | |
1029 | /* free any machine hw params */ | |
75ab9eb6 | 1030 | if (rtd->dai_link->ops->hw_free) |
ddee627c LG |
1031 | rtd->dai_link->ops->hw_free(substream); |
1032 | ||
b8135864 | 1033 | /* free any component resources */ |
244e2936 | 1034 | soc_pcm_components_hw_free(substream, NULL); |
b8135864 | 1035 | |
ddee627c | 1036 | /* now free hw params for the DAIs */ |
0b7990e3 | 1037 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
f47b9ad9 JB |
1038 | if (!snd_soc_dai_stream_valid(codec_dai, substream->stream)) |
1039 | continue; | |
1040 | ||
846faaed | 1041 | snd_soc_dai_hw_free(codec_dai, substream); |
2e5894d7 | 1042 | } |
ddee627c | 1043 | |
846faaed | 1044 | snd_soc_dai_hw_free(cpu_dai, substream); |
ddee627c | 1045 | |
72b745e3 | 1046 | mutex_unlock(&rtd->card->pcm_mutex); |
ddee627c LG |
1047 | return 0; |
1048 | } | |
1049 | ||
4378f1fb | 1050 | static int soc_pcm_trigger_start(struct snd_pcm_substream *substream, int cmd) |
ddee627c LG |
1051 | { |
1052 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
b8135864 KM |
1053 | struct snd_soc_component *component; |
1054 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c | 1055 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
1056 | struct snd_soc_dai *codec_dai; |
1057 | int i, ret; | |
1058 | ||
4378f1fb PU |
1059 | if (rtd->dai_link->ops->trigger) { |
1060 | ret = rtd->dai_link->ops->trigger(substream, cmd); | |
95aef355 KM |
1061 | if (ret < 0) |
1062 | return ret; | |
ddee627c LG |
1063 | } |
1064 | ||
b8135864 KM |
1065 | for_each_rtdcom(rtd, rtdcom) { |
1066 | component = rtdcom->component; | |
1067 | ||
5693d50c | 1068 | ret = snd_soc_component_trigger(component, substream, cmd); |
b8135864 KM |
1069 | if (ret < 0) |
1070 | return ret; | |
1071 | } | |
1072 | ||
901e822b | 1073 | ret = snd_soc_dai_trigger(cpu_dai, substream, cmd); |
95aef355 KM |
1074 | if (ret < 0) |
1075 | return ret; | |
4792b0db | 1076 | |
4378f1fb PU |
1077 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
1078 | ret = snd_soc_dai_trigger(codec_dai, substream, cmd); | |
1079 | if (ret < 0) | |
1080 | return ret; | |
1081 | } | |
1082 | ||
1083 | return 0; | |
1084 | } | |
1085 | ||
1086 | static int soc_pcm_trigger_stop(struct snd_pcm_substream *substream, int cmd) | |
1087 | { | |
1088 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1089 | struct snd_soc_component *component; | |
1090 | struct snd_soc_rtdcom_list *rtdcom; | |
1091 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1092 | struct snd_soc_dai *codec_dai; | |
1093 | int i, ret; | |
1094 | ||
1095 | for_each_rtd_codec_dai(rtd, i, codec_dai) { | |
1096 | ret = snd_soc_dai_trigger(codec_dai, substream, cmd); | |
1097 | if (ret < 0) | |
1098 | return ret; | |
1099 | } | |
1100 | ||
1101 | ret = snd_soc_dai_trigger(cpu_dai, substream, cmd); | |
1102 | if (ret < 0) | |
1103 | return ret; | |
1104 | ||
1105 | for_each_rtdcom(rtd, rtdcom) { | |
1106 | component = rtdcom->component; | |
1107 | ||
1108 | ret = snd_soc_component_trigger(component, substream, cmd); | |
1109 | if (ret < 0) | |
1110 | return ret; | |
1111 | } | |
1112 | ||
75ab9eb6 | 1113 | if (rtd->dai_link->ops->trigger) { |
4792b0db JN |
1114 | ret = rtd->dai_link->ops->trigger(substream, cmd); |
1115 | if (ret < 0) | |
1116 | return ret; | |
1117 | } | |
1118 | ||
ddee627c LG |
1119 | return 0; |
1120 | } | |
1121 | ||
4378f1fb PU |
1122 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) |
1123 | { | |
1124 | int ret; | |
1125 | ||
1126 | switch (cmd) { | |
1127 | case SNDRV_PCM_TRIGGER_START: | |
1128 | case SNDRV_PCM_TRIGGER_RESUME: | |
1129 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
1130 | ret = soc_pcm_trigger_start(substream, cmd); | |
1131 | break; | |
1132 | case SNDRV_PCM_TRIGGER_STOP: | |
1133 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
1134 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
1135 | ret = soc_pcm_trigger_stop(substream, cmd); | |
1136 | break; | |
1137 | default: | |
1138 | return -EINVAL; | |
1139 | } | |
1140 | ||
1141 | return ret; | |
1142 | } | |
1143 | ||
45c0a188 MB |
1144 | static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream, |
1145 | int cmd) | |
07bf84aa LG |
1146 | { |
1147 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
07bf84aa | 1148 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
1149 | struct snd_soc_dai *codec_dai; |
1150 | int i, ret; | |
1151 | ||
0b7990e3 | 1152 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
5c0769af | 1153 | ret = snd_soc_dai_bespoke_trigger(codec_dai, substream, cmd); |
07bf84aa LG |
1154 | if (ret < 0) |
1155 | return ret; | |
1156 | } | |
5c0769af | 1157 | |
901e822b | 1158 | ret = snd_soc_dai_bespoke_trigger(cpu_dai, substream, cmd); |
5c0769af KM |
1159 | if (ret < 0) |
1160 | return ret; | |
1161 | ||
07bf84aa LG |
1162 | return 0; |
1163 | } | |
ddee627c LG |
1164 | /* |
1165 | * soc level wrapper for pointer callback | |
ef050bec | 1166 | * If cpu_dai, codec_dai, component driver has the delay callback, then |
ddee627c LG |
1167 | * the runtime->delay will be updated accordingly. |
1168 | */ | |
1169 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
1170 | { | |
1171 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
ddee627c | 1172 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 | 1173 | struct snd_soc_dai *codec_dai; |
ddee627c LG |
1174 | struct snd_pcm_runtime *runtime = substream->runtime; |
1175 | snd_pcm_uframes_t offset = 0; | |
1176 | snd_pcm_sframes_t delay = 0; | |
2e5894d7 BC |
1177 | snd_pcm_sframes_t codec_delay = 0; |
1178 | int i; | |
ddee627c | 1179 | |
9fb4c2bf AA |
1180 | /* clearing the previous total delay */ |
1181 | runtime->delay = 0; | |
1182 | ||
0035e256 | 1183 | offset = snd_soc_pcm_component_pointer(substream); |
b8135864 | 1184 | |
9fb4c2bf AA |
1185 | /* base delay if assigned in pointer callback */ |
1186 | delay = runtime->delay; | |
b8135864 | 1187 | |
1dea80d4 | 1188 | delay += snd_soc_dai_delay(cpu_dai, substream); |
ddee627c | 1189 | |
0b7990e3 | 1190 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
1dea80d4 KM |
1191 | codec_delay = max(codec_delay, |
1192 | snd_soc_dai_delay(codec_dai, substream)); | |
2e5894d7 BC |
1193 | } |
1194 | delay += codec_delay; | |
ddee627c | 1195 | |
ddee627c LG |
1196 | runtime->delay = delay; |
1197 | ||
1198 | return offset; | |
1199 | } | |
1200 | ||
01d7584c LG |
1201 | /* connect a FE and BE */ |
1202 | static int dpcm_be_connect(struct snd_soc_pcm_runtime *fe, | |
1203 | struct snd_soc_pcm_runtime *be, int stream) | |
1204 | { | |
1205 | struct snd_soc_dpcm *dpcm; | |
a9764869 | 1206 | unsigned long flags; |
01d7584c LG |
1207 | |
1208 | /* only add new dpcms */ | |
8d6258a4 | 1209 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
1210 | if (dpcm->be == be && dpcm->fe == fe) |
1211 | return 0; | |
1212 | } | |
1213 | ||
1214 | dpcm = kzalloc(sizeof(struct snd_soc_dpcm), GFP_KERNEL); | |
1215 | if (!dpcm) | |
1216 | return -ENOMEM; | |
1217 | ||
1218 | dpcm->be = be; | |
1219 | dpcm->fe = fe; | |
1220 | be->dpcm[stream].runtime = fe->dpcm[stream].runtime; | |
1221 | dpcm->state = SND_SOC_DPCM_LINK_STATE_NEW; | |
a9764869 | 1222 | spin_lock_irqsave(&fe->card->dpcm_lock, flags); |
01d7584c LG |
1223 | list_add(&dpcm->list_be, &fe->dpcm[stream].be_clients); |
1224 | list_add(&dpcm->list_fe, &be->dpcm[stream].fe_clients); | |
a9764869 | 1225 | spin_unlock_irqrestore(&fe->card->dpcm_lock, flags); |
01d7584c | 1226 | |
7cc302d2 | 1227 | dev_dbg(fe->dev, "connected new DPCM %s path %s %s %s\n", |
01d7584c LG |
1228 | stream ? "capture" : "playback", fe->dai_link->name, |
1229 | stream ? "<-" : "->", be->dai_link->name); | |
1230 | ||
f86dcef8 | 1231 | #ifdef CONFIG_DEBUG_FS |
fee531d6 GKH |
1232 | dpcm->debugfs_state = debugfs_create_dir(be->dai_link->name, |
1233 | fe->debugfs_dpcm_root); | |
1234 | debugfs_create_u32("state", 0644, dpcm->debugfs_state, &dpcm->state); | |
f86dcef8 | 1235 | #endif |
01d7584c LG |
1236 | return 1; |
1237 | } | |
1238 | ||
1239 | /* reparent a BE onto another FE */ | |
1240 | static void dpcm_be_reparent(struct snd_soc_pcm_runtime *fe, | |
1241 | struct snd_soc_pcm_runtime *be, int stream) | |
1242 | { | |
1243 | struct snd_soc_dpcm *dpcm; | |
1244 | struct snd_pcm_substream *fe_substream, *be_substream; | |
1245 | ||
1246 | /* reparent if BE is connected to other FEs */ | |
1247 | if (!be->dpcm[stream].users) | |
1248 | return; | |
1249 | ||
1250 | be_substream = snd_soc_dpcm_get_substream(be, stream); | |
1251 | ||
d2e24d64 | 1252 | for_each_dpcm_fe(be, stream, dpcm) { |
01d7584c LG |
1253 | if (dpcm->fe == fe) |
1254 | continue; | |
1255 | ||
7cc302d2 | 1256 | dev_dbg(fe->dev, "reparent %s path %s %s %s\n", |
01d7584c LG |
1257 | stream ? "capture" : "playback", |
1258 | dpcm->fe->dai_link->name, | |
1259 | stream ? "<-" : "->", dpcm->be->dai_link->name); | |
1260 | ||
1261 | fe_substream = snd_soc_dpcm_get_substream(dpcm->fe, stream); | |
1262 | be_substream->runtime = fe_substream->runtime; | |
1263 | break; | |
1264 | } | |
1265 | } | |
1266 | ||
1267 | /* disconnect a BE and FE */ | |
23607025 | 1268 | void dpcm_be_disconnect(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1269 | { |
1270 | struct snd_soc_dpcm *dpcm, *d; | |
a9764869 | 1271 | unsigned long flags; |
01d7584c | 1272 | |
8d6258a4 | 1273 | for_each_dpcm_be_safe(fe, stream, dpcm, d) { |
103d84a3 | 1274 | dev_dbg(fe->dev, "ASoC: BE %s disconnect check for %s\n", |
01d7584c LG |
1275 | stream ? "capture" : "playback", |
1276 | dpcm->be->dai_link->name); | |
1277 | ||
1278 | if (dpcm->state != SND_SOC_DPCM_LINK_STATE_FREE) | |
1279 | continue; | |
1280 | ||
7cc302d2 | 1281 | dev_dbg(fe->dev, "freed DSP %s path %s %s %s\n", |
01d7584c LG |
1282 | stream ? "capture" : "playback", fe->dai_link->name, |
1283 | stream ? "<-" : "->", dpcm->be->dai_link->name); | |
1284 | ||
1285 | /* BEs still alive need new FE */ | |
1286 | dpcm_be_reparent(fe, dpcm->be, stream); | |
1287 | ||
f86dcef8 | 1288 | #ifdef CONFIG_DEBUG_FS |
fee531d6 | 1289 | debugfs_remove_recursive(dpcm->debugfs_state); |
f86dcef8 | 1290 | #endif |
a9764869 | 1291 | spin_lock_irqsave(&fe->card->dpcm_lock, flags); |
01d7584c LG |
1292 | list_del(&dpcm->list_be); |
1293 | list_del(&dpcm->list_fe); | |
a9764869 | 1294 | spin_unlock_irqrestore(&fe->card->dpcm_lock, flags); |
01d7584c LG |
1295 | kfree(dpcm); |
1296 | } | |
1297 | } | |
1298 | ||
1299 | /* get BE for DAI widget and stream */ | |
1300 | static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card, | |
1301 | struct snd_soc_dapm_widget *widget, int stream) | |
1302 | { | |
1303 | struct snd_soc_pcm_runtime *be; | |
7afecb30 | 1304 | struct snd_soc_dai *dai; |
1a497983 | 1305 | int i; |
01d7584c | 1306 | |
3c146465 LG |
1307 | dev_dbg(card->dev, "ASoC: find BE for widget %s\n", widget->name); |
1308 | ||
01d7584c | 1309 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
bcb1fd1f | 1310 | for_each_card_rtds(card, be) { |
01d7584c | 1311 | |
35ea0655 LG |
1312 | if (!be->dai_link->no_pcm) |
1313 | continue; | |
1314 | ||
3c146465 LG |
1315 | dev_dbg(card->dev, "ASoC: try BE : %s\n", |
1316 | be->cpu_dai->playback_widget ? | |
1317 | be->cpu_dai->playback_widget->name : "(not set)"); | |
1318 | ||
2e5894d7 | 1319 | if (be->cpu_dai->playback_widget == widget) |
01d7584c | 1320 | return be; |
2e5894d7 | 1321 | |
7afecb30 | 1322 | for_each_rtd_codec_dai(be, i, dai) { |
2e5894d7 BC |
1323 | if (dai->playback_widget == widget) |
1324 | return be; | |
1325 | } | |
01d7584c LG |
1326 | } |
1327 | } else { | |
1328 | ||
bcb1fd1f | 1329 | for_each_card_rtds(card, be) { |
01d7584c | 1330 | |
35ea0655 LG |
1331 | if (!be->dai_link->no_pcm) |
1332 | continue; | |
1333 | ||
3c146465 LG |
1334 | dev_dbg(card->dev, "ASoC: try BE %s\n", |
1335 | be->cpu_dai->capture_widget ? | |
1336 | be->cpu_dai->capture_widget->name : "(not set)"); | |
1337 | ||
2e5894d7 | 1338 | if (be->cpu_dai->capture_widget == widget) |
01d7584c | 1339 | return be; |
2e5894d7 | 1340 | |
7afecb30 | 1341 | for_each_rtd_codec_dai(be, i, dai) { |
2e5894d7 BC |
1342 | if (dai->capture_widget == widget) |
1343 | return be; | |
1344 | } | |
01d7584c LG |
1345 | } |
1346 | } | |
1347 | ||
3c146465 | 1348 | /* dai link name and stream name set correctly ? */ |
103d84a3 | 1349 | dev_err(card->dev, "ASoC: can't get %s BE for %s\n", |
01d7584c LG |
1350 | stream ? "capture" : "playback", widget->name); |
1351 | return NULL; | |
1352 | } | |
1353 | ||
1354 | static inline struct snd_soc_dapm_widget * | |
37018610 | 1355 | dai_get_widget(struct snd_soc_dai *dai, int stream) |
01d7584c LG |
1356 | { |
1357 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
37018610 | 1358 | return dai->playback_widget; |
01d7584c | 1359 | else |
37018610 | 1360 | return dai->capture_widget; |
01d7584c LG |
1361 | } |
1362 | ||
1363 | static int widget_in_list(struct snd_soc_dapm_widget_list *list, | |
1364 | struct snd_soc_dapm_widget *widget) | |
1365 | { | |
1366 | int i; | |
1367 | ||
1368 | for (i = 0; i < list->num_widgets; i++) { | |
1369 | if (widget == list->widgets[i]) | |
1370 | return 1; | |
1371 | } | |
1372 | ||
1373 | return 0; | |
1374 | } | |
1375 | ||
5fdd022c PS |
1376 | static bool dpcm_end_walk_at_be(struct snd_soc_dapm_widget *widget, |
1377 | enum snd_soc_dapm_direction dir) | |
1378 | { | |
1379 | struct snd_soc_card *card = widget->dapm->card; | |
1380 | struct snd_soc_pcm_runtime *rtd; | |
0b7990e3 | 1381 | struct snd_soc_dai *dai; |
5fdd022c PS |
1382 | int i; |
1383 | ||
1384 | if (dir == SND_SOC_DAPM_DIR_OUT) { | |
bcb1fd1f | 1385 | for_each_card_rtds(card, rtd) { |
5fdd022c PS |
1386 | if (!rtd->dai_link->no_pcm) |
1387 | continue; | |
1388 | ||
1389 | if (rtd->cpu_dai->playback_widget == widget) | |
1390 | return true; | |
1391 | ||
0b7990e3 | 1392 | for_each_rtd_codec_dai(rtd, i, dai) { |
5fdd022c PS |
1393 | if (dai->playback_widget == widget) |
1394 | return true; | |
1395 | } | |
1396 | } | |
1397 | } else { /* SND_SOC_DAPM_DIR_IN */ | |
bcb1fd1f | 1398 | for_each_card_rtds(card, rtd) { |
5fdd022c PS |
1399 | if (!rtd->dai_link->no_pcm) |
1400 | continue; | |
1401 | ||
1402 | if (rtd->cpu_dai->capture_widget == widget) | |
1403 | return true; | |
1404 | ||
0b7990e3 | 1405 | for_each_rtd_codec_dai(rtd, i, dai) { |
5fdd022c PS |
1406 | if (dai->capture_widget == widget) |
1407 | return true; | |
1408 | } | |
1409 | } | |
1410 | } | |
1411 | ||
1412 | return false; | |
1413 | } | |
1414 | ||
23607025 | 1415 | int dpcm_path_get(struct snd_soc_pcm_runtime *fe, |
1ce43acf | 1416 | int stream, struct snd_soc_dapm_widget_list **list) |
01d7584c LG |
1417 | { |
1418 | struct snd_soc_dai *cpu_dai = fe->cpu_dai; | |
01d7584c LG |
1419 | int paths; |
1420 | ||
01d7584c | 1421 | /* get number of valid DAI paths and their widgets */ |
6742064a | 1422 | paths = snd_soc_dapm_dai_get_connected_widgets(cpu_dai, stream, list, |
5fdd022c | 1423 | dpcm_end_walk_at_be); |
01d7584c | 1424 | |
103d84a3 | 1425 | dev_dbg(fe->dev, "ASoC: found %d audio %s paths\n", paths, |
01d7584c LG |
1426 | stream ? "capture" : "playback"); |
1427 | ||
01d7584c LG |
1428 | return paths; |
1429 | } | |
1430 | ||
01d7584c LG |
1431 | static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream, |
1432 | struct snd_soc_dapm_widget_list **list_) | |
1433 | { | |
1434 | struct snd_soc_dpcm *dpcm; | |
1435 | struct snd_soc_dapm_widget_list *list = *list_; | |
1436 | struct snd_soc_dapm_widget *widget; | |
7afecb30 | 1437 | struct snd_soc_dai *dai; |
01d7584c LG |
1438 | int prune = 0; |
1439 | ||
1440 | /* Destroy any old FE <--> BE connections */ | |
8d6258a4 | 1441 | for_each_dpcm_be(fe, stream, dpcm) { |
2e5894d7 | 1442 | unsigned int i; |
01d7584c LG |
1443 | |
1444 | /* is there a valid CPU DAI widget for this BE */ | |
37018610 | 1445 | widget = dai_get_widget(dpcm->be->cpu_dai, stream); |
01d7584c LG |
1446 | |
1447 | /* prune the BE if it's no longer in our active list */ | |
1448 | if (widget && widget_in_list(list, widget)) | |
1449 | continue; | |
1450 | ||
1451 | /* is there a valid CODEC DAI widget for this BE */ | |
7afecb30 | 1452 | for_each_rtd_codec_dai(dpcm->be, i, dai) { |
2e5894d7 | 1453 | widget = dai_get_widget(dai, stream); |
01d7584c | 1454 | |
2e5894d7 BC |
1455 | /* prune the BE if it's no longer in our active list */ |
1456 | if (widget && widget_in_list(list, widget)) | |
1457 | continue; | |
1458 | } | |
01d7584c | 1459 | |
103d84a3 | 1460 | dev_dbg(fe->dev, "ASoC: pruning %s BE %s for %s\n", |
01d7584c LG |
1461 | stream ? "capture" : "playback", |
1462 | dpcm->be->dai_link->name, fe->dai_link->name); | |
1463 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
1464 | dpcm->be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | |
1465 | prune++; | |
1466 | } | |
1467 | ||
103d84a3 | 1468 | dev_dbg(fe->dev, "ASoC: found %d old BE paths for pruning\n", prune); |
01d7584c LG |
1469 | return prune; |
1470 | } | |
1471 | ||
1472 | static int dpcm_add_paths(struct snd_soc_pcm_runtime *fe, int stream, | |
1473 | struct snd_soc_dapm_widget_list **list_) | |
1474 | { | |
1475 | struct snd_soc_card *card = fe->card; | |
1476 | struct snd_soc_dapm_widget_list *list = *list_; | |
1477 | struct snd_soc_pcm_runtime *be; | |
1478 | int i, new = 0, err; | |
1479 | ||
1480 | /* Create any new FE <--> BE connections */ | |
1481 | for (i = 0; i < list->num_widgets; i++) { | |
1482 | ||
4616274d MB |
1483 | switch (list->widgets[i]->id) { |
1484 | case snd_soc_dapm_dai_in: | |
c5b8540d KC |
1485 | if (stream != SNDRV_PCM_STREAM_PLAYBACK) |
1486 | continue; | |
1487 | break; | |
4616274d | 1488 | case snd_soc_dapm_dai_out: |
c5b8540d KC |
1489 | if (stream != SNDRV_PCM_STREAM_CAPTURE) |
1490 | continue; | |
4616274d MB |
1491 | break; |
1492 | default: | |
01d7584c | 1493 | continue; |
4616274d | 1494 | } |
01d7584c LG |
1495 | |
1496 | /* is there a valid BE rtd for this widget */ | |
1497 | be = dpcm_get_be(card, list->widgets[i], stream); | |
1498 | if (!be) { | |
103d84a3 | 1499 | dev_err(fe->dev, "ASoC: no BE found for %s\n", |
01d7584c LG |
1500 | list->widgets[i]->name); |
1501 | continue; | |
1502 | } | |
1503 | ||
1504 | /* make sure BE is a real BE */ | |
1505 | if (!be->dai_link->no_pcm) | |
1506 | continue; | |
1507 | ||
1508 | /* don't connect if FE is not running */ | |
23607025 | 1509 | if (!fe->dpcm[stream].runtime && !fe->fe_compr) |
01d7584c LG |
1510 | continue; |
1511 | ||
1512 | /* newly connected FE and BE */ | |
1513 | err = dpcm_be_connect(fe, be, stream); | |
1514 | if (err < 0) { | |
103d84a3 | 1515 | dev_err(fe->dev, "ASoC: can't connect %s\n", |
01d7584c LG |
1516 | list->widgets[i]->name); |
1517 | break; | |
1518 | } else if (err == 0) /* already connected */ | |
1519 | continue; | |
1520 | ||
1521 | /* new */ | |
1522 | be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | |
1523 | new++; | |
1524 | } | |
1525 | ||
103d84a3 | 1526 | dev_dbg(fe->dev, "ASoC: found %d new BE paths\n", new); |
01d7584c LG |
1527 | return new; |
1528 | } | |
1529 | ||
1530 | /* | |
1531 | * Find the corresponding BE DAIs that source or sink audio to this | |
1532 | * FE substream. | |
1533 | */ | |
23607025 | 1534 | int dpcm_process_paths(struct snd_soc_pcm_runtime *fe, |
01d7584c LG |
1535 | int stream, struct snd_soc_dapm_widget_list **list, int new) |
1536 | { | |
1537 | if (new) | |
1538 | return dpcm_add_paths(fe, stream, list); | |
1539 | else | |
1540 | return dpcm_prune_paths(fe, stream, list); | |
1541 | } | |
1542 | ||
23607025 | 1543 | void dpcm_clear_pending_state(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1544 | { |
1545 | struct snd_soc_dpcm *dpcm; | |
a9764869 | 1546 | unsigned long flags; |
01d7584c | 1547 | |
a9764869 | 1548 | spin_lock_irqsave(&fe->card->dpcm_lock, flags); |
8d6258a4 | 1549 | for_each_dpcm_be(fe, stream, dpcm) |
01d7584c LG |
1550 | dpcm->be->dpcm[stream].runtime_update = |
1551 | SND_SOC_DPCM_UPDATE_NO; | |
a9764869 | 1552 | spin_unlock_irqrestore(&fe->card->dpcm_lock, flags); |
01d7584c LG |
1553 | } |
1554 | ||
1555 | static void dpcm_be_dai_startup_unwind(struct snd_soc_pcm_runtime *fe, | |
1556 | int stream) | |
1557 | { | |
1558 | struct snd_soc_dpcm *dpcm; | |
1559 | ||
1560 | /* disable any enabled and non active backends */ | |
8d6258a4 | 1561 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
1562 | |
1563 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1564 | struct snd_pcm_substream *be_substream = | |
1565 | snd_soc_dpcm_get_substream(be, stream); | |
1566 | ||
1567 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1568 | dev_err(be->dev, "ASoC: no users %s at close - state %d\n", |
01d7584c LG |
1569 | stream ? "capture" : "playback", |
1570 | be->dpcm[stream].state); | |
1571 | ||
1572 | if (--be->dpcm[stream].users != 0) | |
1573 | continue; | |
1574 | ||
1575 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) | |
1576 | continue; | |
1577 | ||
1578 | soc_pcm_close(be_substream); | |
1579 | be_substream->runtime = NULL; | |
1580 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1581 | } | |
1582 | } | |
1583 | ||
23607025 | 1584 | int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1585 | { |
1586 | struct snd_soc_dpcm *dpcm; | |
1587 | int err, count = 0; | |
1588 | ||
1589 | /* only startup BE DAIs that are either sinks or sources to this FE DAI */ | |
8d6258a4 | 1590 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
1591 | |
1592 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1593 | struct snd_pcm_substream *be_substream = | |
1594 | snd_soc_dpcm_get_substream(be, stream); | |
1595 | ||
2062b4c5 RKAL |
1596 | if (!be_substream) { |
1597 | dev_err(be->dev, "ASoC: no backend %s stream\n", | |
1598 | stream ? "capture" : "playback"); | |
1599 | continue; | |
1600 | } | |
1601 | ||
01d7584c LG |
1602 | /* is this op for this BE ? */ |
1603 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1604 | continue; | |
1605 | ||
1606 | /* first time the dpcm is open ? */ | |
1607 | if (be->dpcm[stream].users == DPCM_MAX_BE_USERS) | |
103d84a3 | 1608 | dev_err(be->dev, "ASoC: too many users %s at open %d\n", |
01d7584c LG |
1609 | stream ? "capture" : "playback", |
1610 | be->dpcm[stream].state); | |
1611 | ||
1612 | if (be->dpcm[stream].users++ != 0) | |
1613 | continue; | |
1614 | ||
1615 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_NEW) && | |
1616 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_CLOSE)) | |
1617 | continue; | |
1618 | ||
2062b4c5 RKAL |
1619 | dev_dbg(be->dev, "ASoC: open %s BE %s\n", |
1620 | stream ? "capture" : "playback", be->dai_link->name); | |
01d7584c LG |
1621 | |
1622 | be_substream->runtime = be->dpcm[stream].runtime; | |
1623 | err = soc_pcm_open(be_substream); | |
1624 | if (err < 0) { | |
103d84a3 | 1625 | dev_err(be->dev, "ASoC: BE open failed %d\n", err); |
01d7584c LG |
1626 | be->dpcm[stream].users--; |
1627 | if (be->dpcm[stream].users < 0) | |
103d84a3 | 1628 | dev_err(be->dev, "ASoC: no users %s at unwind %d\n", |
01d7584c LG |
1629 | stream ? "capture" : "playback", |
1630 | be->dpcm[stream].state); | |
1631 | ||
1632 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1633 | goto unwind; | |
1634 | } | |
1635 | ||
1636 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
1637 | count++; | |
1638 | } | |
1639 | ||
1640 | return count; | |
1641 | ||
1642 | unwind: | |
1643 | /* disable any enabled and non active backends */ | |
8d6258a4 | 1644 | for_each_dpcm_be_rollback(fe, stream, dpcm) { |
01d7584c LG |
1645 | struct snd_soc_pcm_runtime *be = dpcm->be; |
1646 | struct snd_pcm_substream *be_substream = | |
1647 | snd_soc_dpcm_get_substream(be, stream); | |
1648 | ||
1649 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1650 | continue; | |
1651 | ||
1652 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1653 | dev_err(be->dev, "ASoC: no users %s at close %d\n", |
01d7584c LG |
1654 | stream ? "capture" : "playback", |
1655 | be->dpcm[stream].state); | |
1656 | ||
1657 | if (--be->dpcm[stream].users != 0) | |
1658 | continue; | |
1659 | ||
1660 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) | |
1661 | continue; | |
1662 | ||
1663 | soc_pcm_close(be_substream); | |
1664 | be_substream->runtime = NULL; | |
1665 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1666 | } | |
1667 | ||
1668 | return err; | |
1669 | } | |
1670 | ||
08ae9b45 | 1671 | static void dpcm_init_runtime_hw(struct snd_pcm_runtime *runtime, |
435ffb76 | 1672 | struct snd_soc_pcm_stream *stream) |
08ae9b45 LPC |
1673 | { |
1674 | runtime->hw.rate_min = stream->rate_min; | |
e33ffbd9 | 1675 | runtime->hw.rate_max = min_not_zero(stream->rate_max, UINT_MAX); |
08ae9b45 LPC |
1676 | runtime->hw.channels_min = stream->channels_min; |
1677 | runtime->hw.channels_max = stream->channels_max; | |
002220a9 | 1678 | if (runtime->hw.formats) |
435ffb76 | 1679 | runtime->hw.formats &= stream->formats; |
002220a9 | 1680 | else |
435ffb76 | 1681 | runtime->hw.formats = stream->formats; |
08ae9b45 LPC |
1682 | runtime->hw.rates = stream->rates; |
1683 | } | |
1684 | ||
435ffb76 JB |
1685 | static void dpcm_runtime_merge_format(struct snd_pcm_substream *substream, |
1686 | u64 *formats) | |
b073ed4e KM |
1687 | { |
1688 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1689 | struct snd_soc_dpcm *dpcm; | |
7afecb30 | 1690 | struct snd_soc_dai *dai; |
b073ed4e KM |
1691 | int stream = substream->stream; |
1692 | ||
1693 | if (!fe->dai_link->dpcm_merged_format) | |
435ffb76 | 1694 | return; |
b073ed4e KM |
1695 | |
1696 | /* | |
1697 | * It returns merged BE codec format | |
1698 | * if FE want to use it (= dpcm_merged_format) | |
1699 | */ | |
1700 | ||
8d6258a4 | 1701 | for_each_dpcm_be(fe, stream, dpcm) { |
b073ed4e KM |
1702 | struct snd_soc_pcm_runtime *be = dpcm->be; |
1703 | struct snd_soc_dai_driver *codec_dai_drv; | |
1704 | struct snd_soc_pcm_stream *codec_stream; | |
1705 | int i; | |
1706 | ||
7afecb30 | 1707 | for_each_rtd_codec_dai(be, i, dai) { |
4febced1 JB |
1708 | /* |
1709 | * Skip CODECs which don't support the current stream | |
1710 | * type. See soc_pcm_init_runtime_hw() for more details | |
1711 | */ | |
7afecb30 | 1712 | if (!snd_soc_dai_stream_valid(dai, stream)) |
4febced1 JB |
1713 | continue; |
1714 | ||
7afecb30 | 1715 | codec_dai_drv = dai->driver; |
b073ed4e KM |
1716 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
1717 | codec_stream = &codec_dai_drv->playback; | |
1718 | else | |
1719 | codec_stream = &codec_dai_drv->capture; | |
1720 | ||
435ffb76 | 1721 | *formats &= codec_stream->formats; |
b073ed4e KM |
1722 | } |
1723 | } | |
b073ed4e KM |
1724 | } |
1725 | ||
435ffb76 JB |
1726 | static void dpcm_runtime_merge_chan(struct snd_pcm_substream *substream, |
1727 | unsigned int *channels_min, | |
1728 | unsigned int *channels_max) | |
f4c277b8 JW |
1729 | { |
1730 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1731 | struct snd_soc_dpcm *dpcm; | |
1732 | int stream = substream->stream; | |
1733 | ||
1734 | if (!fe->dai_link->dpcm_merged_chan) | |
1735 | return; | |
1736 | ||
f4c277b8 JW |
1737 | /* |
1738 | * It returns merged BE codec channel; | |
1739 | * if FE want to use it (= dpcm_merged_chan) | |
1740 | */ | |
1741 | ||
8d6258a4 | 1742 | for_each_dpcm_be(fe, stream, dpcm) { |
f4c277b8 | 1743 | struct snd_soc_pcm_runtime *be = dpcm->be; |
4f2bd18b | 1744 | struct snd_soc_dai_driver *cpu_dai_drv = be->cpu_dai->driver; |
f4c277b8 JW |
1745 | struct snd_soc_dai_driver *codec_dai_drv; |
1746 | struct snd_soc_pcm_stream *codec_stream; | |
4f2bd18b JB |
1747 | struct snd_soc_pcm_stream *cpu_stream; |
1748 | ||
1749 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
1750 | cpu_stream = &cpu_dai_drv->playback; | |
1751 | else | |
1752 | cpu_stream = &cpu_dai_drv->capture; | |
1753 | ||
1754 | *channels_min = max(*channels_min, cpu_stream->channels_min); | |
1755 | *channels_max = min(*channels_max, cpu_stream->channels_max); | |
1756 | ||
1757 | /* | |
1758 | * chan min/max cannot be enforced if there are multiple CODEC | |
1759 | * DAIs connected to a single CPU DAI, use CPU DAI's directly | |
1760 | */ | |
1761 | if (be->num_codecs == 1) { | |
1762 | codec_dai_drv = be->codec_dais[0]->driver; | |
f4c277b8 | 1763 | |
f4c277b8 JW |
1764 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
1765 | codec_stream = &codec_dai_drv->playback; | |
1766 | else | |
1767 | codec_stream = &codec_dai_drv->capture; | |
1768 | ||
1769 | *channels_min = max(*channels_min, | |
1770 | codec_stream->channels_min); | |
1771 | *channels_max = min(*channels_max, | |
1772 | codec_stream->channels_max); | |
1773 | } | |
1774 | } | |
1775 | } | |
1776 | ||
baacd8d1 JB |
1777 | static void dpcm_runtime_merge_rate(struct snd_pcm_substream *substream, |
1778 | unsigned int *rates, | |
1779 | unsigned int *rate_min, | |
1780 | unsigned int *rate_max) | |
1781 | { | |
1782 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1783 | struct snd_soc_dpcm *dpcm; | |
1784 | int stream = substream->stream; | |
1785 | ||
1786 | if (!fe->dai_link->dpcm_merged_rate) | |
1787 | return; | |
1788 | ||
1789 | /* | |
1790 | * It returns merged BE codec channel; | |
1791 | * if FE want to use it (= dpcm_merged_chan) | |
1792 | */ | |
1793 | ||
8d6258a4 | 1794 | for_each_dpcm_be(fe, stream, dpcm) { |
baacd8d1 JB |
1795 | struct snd_soc_pcm_runtime *be = dpcm->be; |
1796 | struct snd_soc_dai_driver *cpu_dai_drv = be->cpu_dai->driver; | |
1797 | struct snd_soc_dai_driver *codec_dai_drv; | |
1798 | struct snd_soc_pcm_stream *codec_stream; | |
1799 | struct snd_soc_pcm_stream *cpu_stream; | |
7afecb30 | 1800 | struct snd_soc_dai *dai; |
baacd8d1 JB |
1801 | int i; |
1802 | ||
1803 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
1804 | cpu_stream = &cpu_dai_drv->playback; | |
1805 | else | |
1806 | cpu_stream = &cpu_dai_drv->capture; | |
1807 | ||
1808 | *rate_min = max(*rate_min, cpu_stream->rate_min); | |
1809 | *rate_max = min_not_zero(*rate_max, cpu_stream->rate_max); | |
1810 | *rates = snd_pcm_rate_mask_intersect(*rates, cpu_stream->rates); | |
1811 | ||
7afecb30 | 1812 | for_each_rtd_codec_dai(be, i, dai) { |
baacd8d1 JB |
1813 | /* |
1814 | * Skip CODECs which don't support the current stream | |
1815 | * type. See soc_pcm_init_runtime_hw() for more details | |
1816 | */ | |
7afecb30 | 1817 | if (!snd_soc_dai_stream_valid(dai, stream)) |
baacd8d1 JB |
1818 | continue; |
1819 | ||
7afecb30 | 1820 | codec_dai_drv = dai->driver; |
baacd8d1 JB |
1821 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
1822 | codec_stream = &codec_dai_drv->playback; | |
1823 | else | |
1824 | codec_stream = &codec_dai_drv->capture; | |
1825 | ||
1826 | *rate_min = max(*rate_min, codec_stream->rate_min); | |
1827 | *rate_max = min_not_zero(*rate_max, | |
1828 | codec_stream->rate_max); | |
1829 | *rates = snd_pcm_rate_mask_intersect(*rates, | |
1830 | codec_stream->rates); | |
1831 | } | |
1832 | } | |
1833 | } | |
1834 | ||
45c0a188 | 1835 | static void dpcm_set_fe_runtime(struct snd_pcm_substream *substream) |
01d7584c LG |
1836 | { |
1837 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1838 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1839 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1840 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
1841 | ||
08ae9b45 | 1842 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
435ffb76 | 1843 | dpcm_init_runtime_hw(runtime, &cpu_dai_drv->playback); |
08ae9b45 | 1844 | else |
435ffb76 | 1845 | dpcm_init_runtime_hw(runtime, &cpu_dai_drv->capture); |
f4c277b8 | 1846 | |
435ffb76 JB |
1847 | dpcm_runtime_merge_format(substream, &runtime->hw.formats); |
1848 | dpcm_runtime_merge_chan(substream, &runtime->hw.channels_min, | |
1849 | &runtime->hw.channels_max); | |
baacd8d1 JB |
1850 | dpcm_runtime_merge_rate(substream, &runtime->hw.rates, |
1851 | &runtime->hw.rate_min, &runtime->hw.rate_max); | |
01d7584c LG |
1852 | } |
1853 | ||
ea9d0d77 TI |
1854 | static int dpcm_fe_dai_do_trigger(struct snd_pcm_substream *substream, int cmd); |
1855 | ||
1856 | /* Set FE's runtime_update state; the state is protected via PCM stream lock | |
1857 | * for avoiding the race with trigger callback. | |
1858 | * If the state is unset and a trigger is pending while the previous operation, | |
1859 | * process the pending trigger action here. | |
1860 | */ | |
1861 | static void dpcm_set_fe_update_state(struct snd_soc_pcm_runtime *fe, | |
1862 | int stream, enum snd_soc_dpcm_update state) | |
1863 | { | |
1864 | struct snd_pcm_substream *substream = | |
1865 | snd_soc_dpcm_get_substream(fe, stream); | |
1866 | ||
1867 | snd_pcm_stream_lock_irq(substream); | |
1868 | if (state == SND_SOC_DPCM_UPDATE_NO && fe->dpcm[stream].trigger_pending) { | |
1869 | dpcm_fe_dai_do_trigger(substream, | |
1870 | fe->dpcm[stream].trigger_pending - 1); | |
1871 | fe->dpcm[stream].trigger_pending = 0; | |
1872 | } | |
1873 | fe->dpcm[stream].runtime_update = state; | |
1874 | snd_pcm_stream_unlock_irq(substream); | |
1875 | } | |
1876 | ||
906c7d69 PL |
1877 | static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream, |
1878 | int stream) | |
1879 | { | |
1880 | struct snd_soc_dpcm *dpcm; | |
1881 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
1882 | struct snd_soc_dai *fe_cpu_dai = fe->cpu_dai; | |
1883 | int err; | |
1884 | ||
1885 | /* apply symmetry for FE */ | |
1886 | if (soc_pcm_has_symmetry(fe_substream)) | |
1887 | fe_substream->runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
1888 | ||
1889 | /* Symmetry only applies if we've got an active stream. */ | |
1890 | if (fe_cpu_dai->active) { | |
1891 | err = soc_pcm_apply_symmetry(fe_substream, fe_cpu_dai); | |
1892 | if (err < 0) | |
1893 | return err; | |
1894 | } | |
1895 | ||
1896 | /* apply symmetry for BE */ | |
8d6258a4 | 1897 | for_each_dpcm_be(fe, stream, dpcm) { |
906c7d69 PL |
1898 | struct snd_soc_pcm_runtime *be = dpcm->be; |
1899 | struct snd_pcm_substream *be_substream = | |
1900 | snd_soc_dpcm_get_substream(be, stream); | |
6246f283 | 1901 | struct snd_soc_pcm_runtime *rtd; |
0b7990e3 | 1902 | struct snd_soc_dai *codec_dai; |
906c7d69 PL |
1903 | int i; |
1904 | ||
6246f283 JB |
1905 | /* A backend may not have the requested substream */ |
1906 | if (!be_substream) | |
1907 | continue; | |
1908 | ||
1909 | rtd = be_substream->private_data; | |
f1176614 JK |
1910 | if (rtd->dai_link->be_hw_params_fixup) |
1911 | continue; | |
1912 | ||
906c7d69 PL |
1913 | if (soc_pcm_has_symmetry(be_substream)) |
1914 | be_substream->runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
1915 | ||
1916 | /* Symmetry only applies if we've got an active stream. */ | |
1917 | if (rtd->cpu_dai->active) { | |
99bcedbd KCC |
1918 | err = soc_pcm_apply_symmetry(fe_substream, |
1919 | rtd->cpu_dai); | |
906c7d69 PL |
1920 | if (err < 0) |
1921 | return err; | |
1922 | } | |
1923 | ||
0b7990e3 KM |
1924 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
1925 | if (codec_dai->active) { | |
99bcedbd | 1926 | err = soc_pcm_apply_symmetry(fe_substream, |
0b7990e3 | 1927 | codec_dai); |
906c7d69 PL |
1928 | if (err < 0) |
1929 | return err; | |
1930 | } | |
1931 | } | |
1932 | } | |
1933 | ||
1934 | return 0; | |
1935 | } | |
1936 | ||
01d7584c LG |
1937 | static int dpcm_fe_dai_startup(struct snd_pcm_substream *fe_substream) |
1938 | { | |
1939 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
1940 | struct snd_pcm_runtime *runtime = fe_substream->runtime; | |
1941 | int stream = fe_substream->stream, ret = 0; | |
1942 | ||
ea9d0d77 | 1943 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
1944 | |
1945 | ret = dpcm_be_dai_startup(fe, fe_substream->stream); | |
1946 | if (ret < 0) { | |
103d84a3 | 1947 | dev_err(fe->dev,"ASoC: failed to start some BEs %d\n", ret); |
01d7584c LG |
1948 | goto be_err; |
1949 | } | |
1950 | ||
103d84a3 | 1951 | dev_dbg(fe->dev, "ASoC: open FE %s\n", fe->dai_link->name); |
01d7584c LG |
1952 | |
1953 | /* start the DAI frontend */ | |
1954 | ret = soc_pcm_open(fe_substream); | |
1955 | if (ret < 0) { | |
103d84a3 | 1956 | dev_err(fe->dev,"ASoC: failed to start FE %d\n", ret); |
01d7584c LG |
1957 | goto unwind; |
1958 | } | |
1959 | ||
1960 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
1961 | ||
1962 | dpcm_set_fe_runtime(fe_substream); | |
1963 | snd_pcm_limit_hw_rates(runtime); | |
1964 | ||
906c7d69 PL |
1965 | ret = dpcm_apply_symmetry(fe_substream, stream); |
1966 | if (ret < 0) { | |
1967 | dev_err(fe->dev, "ASoC: failed to apply dpcm symmetry %d\n", | |
1968 | ret); | |
1969 | goto unwind; | |
1970 | } | |
1971 | ||
ea9d0d77 | 1972 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1973 | return 0; |
1974 | ||
1975 | unwind: | |
1976 | dpcm_be_dai_startup_unwind(fe, fe_substream->stream); | |
1977 | be_err: | |
ea9d0d77 | 1978 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1979 | return ret; |
1980 | } | |
1981 | ||
23607025 | 1982 | int dpcm_be_dai_shutdown(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1983 | { |
1984 | struct snd_soc_dpcm *dpcm; | |
1985 | ||
1986 | /* only shutdown BEs that are either sinks or sources to this FE DAI */ | |
8d6258a4 | 1987 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
1988 | |
1989 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1990 | struct snd_pcm_substream *be_substream = | |
1991 | snd_soc_dpcm_get_substream(be, stream); | |
1992 | ||
1993 | /* is this op for this BE ? */ | |
1994 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1995 | continue; | |
1996 | ||
1997 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1998 | dev_err(be->dev, "ASoC: no users %s at close - state %d\n", |
01d7584c LG |
1999 | stream ? "capture" : "playback", |
2000 | be->dpcm[stream].state); | |
2001 | ||
2002 | if (--be->dpcm[stream].users != 0) | |
2003 | continue; | |
2004 | ||
2005 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
9c0ac70a KCC |
2006 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN)) { |
2007 | soc_pcm_hw_free(be_substream); | |
2008 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
2009 | } | |
01d7584c | 2010 | |
103d84a3 | 2011 | dev_dbg(be->dev, "ASoC: close BE %s\n", |
94d215cc | 2012 | be->dai_link->name); |
01d7584c LG |
2013 | |
2014 | soc_pcm_close(be_substream); | |
2015 | be_substream->runtime = NULL; | |
2016 | ||
2017 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
2018 | } | |
2019 | return 0; | |
2020 | } | |
2021 | ||
2022 | static int dpcm_fe_dai_shutdown(struct snd_pcm_substream *substream) | |
2023 | { | |
2024 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2025 | int stream = substream->stream; | |
2026 | ||
ea9d0d77 | 2027 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
2028 | |
2029 | /* shutdown the BEs */ | |
2030 | dpcm_be_dai_shutdown(fe, substream->stream); | |
2031 | ||
103d84a3 | 2032 | dev_dbg(fe->dev, "ASoC: close FE %s\n", fe->dai_link->name); |
01d7584c LG |
2033 | |
2034 | /* now shutdown the frontend */ | |
2035 | soc_pcm_close(substream); | |
2036 | ||
2037 | /* run the stream event for each BE */ | |
2038 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP); | |
2039 | ||
2040 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
ea9d0d77 | 2041 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
2042 | return 0; |
2043 | } | |
2044 | ||
23607025 | 2045 | int dpcm_be_dai_hw_free(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
2046 | { |
2047 | struct snd_soc_dpcm *dpcm; | |
2048 | ||
2049 | /* only hw_params backends that are either sinks or sources | |
2050 | * to this frontend DAI */ | |
8d6258a4 | 2051 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
2052 | |
2053 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2054 | struct snd_pcm_substream *be_substream = | |
2055 | snd_soc_dpcm_get_substream(be, stream); | |
2056 | ||
2057 | /* is this op for this BE ? */ | |
2058 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2059 | continue; | |
2060 | ||
2061 | /* only free hw when no longer used - check all FEs */ | |
2062 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2063 | continue; | |
2064 | ||
36fba62c QZ |
2065 | /* do not free hw if this BE is used by other FE */ |
2066 | if (be->dpcm[stream].users > 1) | |
2067 | continue; | |
2068 | ||
01d7584c LG |
2069 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && |
2070 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && | |
2071 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
08b27848 | 2072 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED) && |
5e82d2be VK |
2073 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) && |
2074 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND)) | |
01d7584c LG |
2075 | continue; |
2076 | ||
103d84a3 | 2077 | dev_dbg(be->dev, "ASoC: hw_free BE %s\n", |
94d215cc | 2078 | be->dai_link->name); |
01d7584c LG |
2079 | |
2080 | soc_pcm_hw_free(be_substream); | |
2081 | ||
2082 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
2083 | } | |
2084 | ||
2085 | return 0; | |
2086 | } | |
2087 | ||
45c0a188 | 2088 | static int dpcm_fe_dai_hw_free(struct snd_pcm_substream *substream) |
01d7584c LG |
2089 | { |
2090 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2091 | int err, stream = substream->stream; | |
2092 | ||
2093 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
ea9d0d77 | 2094 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c | 2095 | |
103d84a3 | 2096 | dev_dbg(fe->dev, "ASoC: hw_free FE %s\n", fe->dai_link->name); |
01d7584c LG |
2097 | |
2098 | /* call hw_free on the frontend */ | |
2099 | err = soc_pcm_hw_free(substream); | |
2100 | if (err < 0) | |
103d84a3 | 2101 | dev_err(fe->dev,"ASoC: hw_free FE %s failed\n", |
01d7584c LG |
2102 | fe->dai_link->name); |
2103 | ||
2104 | /* only hw_params backends that are either sinks or sources | |
2105 | * to this frontend DAI */ | |
2106 | err = dpcm_be_dai_hw_free(fe, stream); | |
2107 | ||
2108 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
ea9d0d77 | 2109 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
2110 | |
2111 | mutex_unlock(&fe->card->mutex); | |
2112 | return 0; | |
2113 | } | |
2114 | ||
23607025 | 2115 | int dpcm_be_dai_hw_params(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
2116 | { |
2117 | struct snd_soc_dpcm *dpcm; | |
2118 | int ret; | |
2119 | ||
8d6258a4 | 2120 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
2121 | |
2122 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2123 | struct snd_pcm_substream *be_substream = | |
2124 | snd_soc_dpcm_get_substream(be, stream); | |
2125 | ||
2126 | /* is this op for this BE ? */ | |
2127 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2128 | continue; | |
2129 | ||
01d7584c LG |
2130 | /* copy params for each dpcm */ |
2131 | memcpy(&dpcm->hw_params, &fe->dpcm[stream].hw_params, | |
2132 | sizeof(struct snd_pcm_hw_params)); | |
2133 | ||
2134 | /* perform any hw_params fixups */ | |
2135 | if (be->dai_link->be_hw_params_fixup) { | |
2136 | ret = be->dai_link->be_hw_params_fixup(be, | |
2137 | &dpcm->hw_params); | |
2138 | if (ret < 0) { | |
2139 | dev_err(be->dev, | |
103d84a3 | 2140 | "ASoC: hw_params BE fixup failed %d\n", |
01d7584c LG |
2141 | ret); |
2142 | goto unwind; | |
2143 | } | |
2144 | } | |
2145 | ||
ae061d2a LY |
2146 | /* copy the fixed-up hw params for BE dai */ |
2147 | memcpy(&be->dpcm[stream].hw_params, &dpcm->hw_params, | |
2148 | sizeof(struct snd_pcm_hw_params)); | |
2149 | ||
b0639bd2 KM |
2150 | /* only allow hw_params() if no connected FEs are running */ |
2151 | if (!snd_soc_dpcm_can_be_params(fe, be, stream)) | |
2152 | continue; | |
2153 | ||
2154 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) && | |
2155 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
2156 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE)) | |
2157 | continue; | |
2158 | ||
2159 | dev_dbg(be->dev, "ASoC: hw_params BE %s\n", | |
94d215cc | 2160 | be->dai_link->name); |
b0639bd2 | 2161 | |
01d7584c LG |
2162 | ret = soc_pcm_hw_params(be_substream, &dpcm->hw_params); |
2163 | if (ret < 0) { | |
2164 | dev_err(dpcm->be->dev, | |
103d84a3 | 2165 | "ASoC: hw_params BE failed %d\n", ret); |
01d7584c LG |
2166 | goto unwind; |
2167 | } | |
2168 | ||
2169 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS; | |
2170 | } | |
2171 | return 0; | |
2172 | ||
2173 | unwind: | |
2174 | /* disable any enabled and non active backends */ | |
8d6258a4 | 2175 | for_each_dpcm_be_rollback(fe, stream, dpcm) { |
01d7584c LG |
2176 | struct snd_soc_pcm_runtime *be = dpcm->be; |
2177 | struct snd_pcm_substream *be_substream = | |
2178 | snd_soc_dpcm_get_substream(be, stream); | |
2179 | ||
2180 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2181 | continue; | |
2182 | ||
2183 | /* only allow hw_free() if no connected FEs are running */ | |
2184 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2185 | continue; | |
2186 | ||
2187 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) && | |
2188 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
2189 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
2190 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
2191 | continue; | |
2192 | ||
2193 | soc_pcm_hw_free(be_substream); | |
2194 | } | |
2195 | ||
2196 | return ret; | |
2197 | } | |
2198 | ||
45c0a188 MB |
2199 | static int dpcm_fe_dai_hw_params(struct snd_pcm_substream *substream, |
2200 | struct snd_pcm_hw_params *params) | |
01d7584c LG |
2201 | { |
2202 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2203 | int ret, stream = substream->stream; | |
2204 | ||
2205 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
ea9d0d77 | 2206 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
2207 | |
2208 | memcpy(&fe->dpcm[substream->stream].hw_params, params, | |
2209 | sizeof(struct snd_pcm_hw_params)); | |
2210 | ret = dpcm_be_dai_hw_params(fe, substream->stream); | |
2211 | if (ret < 0) { | |
103d84a3 | 2212 | dev_err(fe->dev,"ASoC: hw_params BE failed %d\n", ret); |
01d7584c LG |
2213 | goto out; |
2214 | } | |
2215 | ||
103d84a3 | 2216 | dev_dbg(fe->dev, "ASoC: hw_params FE %s rate %d chan %x fmt %d\n", |
01d7584c LG |
2217 | fe->dai_link->name, params_rate(params), |
2218 | params_channels(params), params_format(params)); | |
2219 | ||
2220 | /* call hw_params on the frontend */ | |
2221 | ret = soc_pcm_hw_params(substream, params); | |
2222 | if (ret < 0) { | |
103d84a3 | 2223 | dev_err(fe->dev,"ASoC: hw_params FE failed %d\n", ret); |
01d7584c LG |
2224 | dpcm_be_dai_hw_free(fe, stream); |
2225 | } else | |
2226 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS; | |
2227 | ||
2228 | out: | |
ea9d0d77 | 2229 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
2230 | mutex_unlock(&fe->card->mutex); |
2231 | return ret; | |
2232 | } | |
2233 | ||
2234 | static int dpcm_do_trigger(struct snd_soc_dpcm *dpcm, | |
2235 | struct snd_pcm_substream *substream, int cmd) | |
2236 | { | |
2237 | int ret; | |
2238 | ||
103d84a3 | 2239 | dev_dbg(dpcm->be->dev, "ASoC: trigger BE %s cmd %d\n", |
94d215cc | 2240 | dpcm->be->dai_link->name, cmd); |
01d7584c LG |
2241 | |
2242 | ret = soc_pcm_trigger(substream, cmd); | |
2243 | if (ret < 0) | |
103d84a3 | 2244 | dev_err(dpcm->be->dev,"ASoC: trigger BE failed %d\n", ret); |
01d7584c LG |
2245 | |
2246 | return ret; | |
2247 | } | |
2248 | ||
23607025 | 2249 | int dpcm_be_dai_trigger(struct snd_soc_pcm_runtime *fe, int stream, |
45c0a188 | 2250 | int cmd) |
01d7584c LG |
2251 | { |
2252 | struct snd_soc_dpcm *dpcm; | |
2253 | int ret = 0; | |
2254 | ||
8d6258a4 | 2255 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
2256 | |
2257 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2258 | struct snd_pcm_substream *be_substream = | |
2259 | snd_soc_dpcm_get_substream(be, stream); | |
2260 | ||
2261 | /* is this op for this BE ? */ | |
2262 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2263 | continue; | |
2264 | ||
2265 | switch (cmd) { | |
2266 | case SNDRV_PCM_TRIGGER_START: | |
2267 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && | |
2268 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
2269 | continue; | |
2270 | ||
2271 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2272 | if (ret) | |
2273 | return ret; | |
2274 | ||
2275 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
2276 | break; | |
2277 | case SNDRV_PCM_TRIGGER_RESUME: | |
2278 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND)) | |
2279 | continue; | |
2280 | ||
2281 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2282 | if (ret) | |
2283 | return ret; | |
2284 | ||
2285 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
2286 | break; | |
2287 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
2288 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED)) | |
2289 | continue; | |
2290 | ||
2291 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2292 | if (ret) | |
2293 | return ret; | |
2294 | ||
2295 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
2296 | break; | |
2297 | case SNDRV_PCM_TRIGGER_STOP: | |
2298 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
2299 | continue; | |
2300 | ||
2301 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2302 | continue; | |
2303 | ||
2304 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2305 | if (ret) | |
2306 | return ret; | |
2307 | ||
2308 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; | |
2309 | break; | |
2310 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
868a6ca8 | 2311 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) |
01d7584c LG |
2312 | continue; |
2313 | ||
2314 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2315 | continue; | |
2316 | ||
2317 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2318 | if (ret) | |
2319 | return ret; | |
2320 | ||
2321 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_SUSPEND; | |
2322 | break; | |
2323 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
2324 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
2325 | continue; | |
2326 | ||
2327 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2328 | continue; | |
2329 | ||
2330 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2331 | if (ret) | |
2332 | return ret; | |
2333 | ||
2334 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED; | |
2335 | break; | |
2336 | } | |
2337 | } | |
2338 | ||
2339 | return ret; | |
2340 | } | |
2341 | EXPORT_SYMBOL_GPL(dpcm_be_dai_trigger); | |
2342 | ||
ea9d0d77 | 2343 | static int dpcm_fe_dai_do_trigger(struct snd_pcm_substream *substream, int cmd) |
01d7584c LG |
2344 | { |
2345 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2346 | int stream = substream->stream, ret; | |
2347 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; | |
2348 | ||
2349 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
2350 | ||
2351 | switch (trigger) { | |
2352 | case SND_SOC_DPCM_TRIGGER_PRE: | |
2353 | /* call trigger on the frontend before the backend. */ | |
2354 | ||
103d84a3 | 2355 | dev_dbg(fe->dev, "ASoC: pre trigger FE %s cmd %d\n", |
01d7584c LG |
2356 | fe->dai_link->name, cmd); |
2357 | ||
2358 | ret = soc_pcm_trigger(substream, cmd); | |
2359 | if (ret < 0) { | |
103d84a3 | 2360 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
01d7584c LG |
2361 | goto out; |
2362 | } | |
2363 | ||
2364 | ret = dpcm_be_dai_trigger(fe, substream->stream, cmd); | |
2365 | break; | |
2366 | case SND_SOC_DPCM_TRIGGER_POST: | |
2367 | /* call trigger on the frontend after the backend. */ | |
2368 | ||
2369 | ret = dpcm_be_dai_trigger(fe, substream->stream, cmd); | |
2370 | if (ret < 0) { | |
103d84a3 | 2371 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
01d7584c LG |
2372 | goto out; |
2373 | } | |
2374 | ||
103d84a3 | 2375 | dev_dbg(fe->dev, "ASoC: post trigger FE %s cmd %d\n", |
01d7584c LG |
2376 | fe->dai_link->name, cmd); |
2377 | ||
2378 | ret = soc_pcm_trigger(substream, cmd); | |
2379 | break; | |
07bf84aa LG |
2380 | case SND_SOC_DPCM_TRIGGER_BESPOKE: |
2381 | /* bespoke trigger() - handles both FE and BEs */ | |
2382 | ||
103d84a3 | 2383 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd %d\n", |
07bf84aa LG |
2384 | fe->dai_link->name, cmd); |
2385 | ||
2386 | ret = soc_pcm_bespoke_trigger(substream, cmd); | |
2387 | if (ret < 0) { | |
103d84a3 | 2388 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
07bf84aa LG |
2389 | goto out; |
2390 | } | |
2391 | break; | |
01d7584c | 2392 | default: |
103d84a3 | 2393 | dev_err(fe->dev, "ASoC: invalid trigger cmd %d for %s\n", cmd, |
01d7584c LG |
2394 | fe->dai_link->name); |
2395 | ret = -EINVAL; | |
2396 | goto out; | |
2397 | } | |
2398 | ||
2399 | switch (cmd) { | |
2400 | case SNDRV_PCM_TRIGGER_START: | |
2401 | case SNDRV_PCM_TRIGGER_RESUME: | |
2402 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
2403 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
2404 | break; | |
2405 | case SNDRV_PCM_TRIGGER_STOP: | |
2406 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
01d7584c LG |
2407 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; |
2408 | break; | |
9f169b9f PL |
2409 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
2410 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED; | |
2411 | break; | |
01d7584c LG |
2412 | } |
2413 | ||
2414 | out: | |
2415 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
2416 | return ret; | |
2417 | } | |
2418 | ||
ea9d0d77 TI |
2419 | static int dpcm_fe_dai_trigger(struct snd_pcm_substream *substream, int cmd) |
2420 | { | |
2421 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2422 | int stream = substream->stream; | |
2423 | ||
2424 | /* if FE's runtime_update is already set, we're in race; | |
2425 | * process this trigger later at exit | |
2426 | */ | |
2427 | if (fe->dpcm[stream].runtime_update != SND_SOC_DPCM_UPDATE_NO) { | |
2428 | fe->dpcm[stream].trigger_pending = cmd + 1; | |
2429 | return 0; /* delayed, assuming it's successful */ | |
2430 | } | |
2431 | ||
2432 | /* we're alone, let's trigger */ | |
2433 | return dpcm_fe_dai_do_trigger(substream, cmd); | |
2434 | } | |
2435 | ||
23607025 | 2436 | int dpcm_be_dai_prepare(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
2437 | { |
2438 | struct snd_soc_dpcm *dpcm; | |
2439 | int ret = 0; | |
2440 | ||
8d6258a4 | 2441 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
2442 | |
2443 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2444 | struct snd_pcm_substream *be_substream = | |
2445 | snd_soc_dpcm_get_substream(be, stream); | |
2446 | ||
2447 | /* is this op for this BE ? */ | |
2448 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2449 | continue; | |
2450 | ||
2451 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
95f444dc | 2452 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) && |
5087a8f1 LY |
2453 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND) && |
2454 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED)) | |
01d7584c LG |
2455 | continue; |
2456 | ||
103d84a3 | 2457 | dev_dbg(be->dev, "ASoC: prepare BE %s\n", |
94d215cc | 2458 | be->dai_link->name); |
01d7584c LG |
2459 | |
2460 | ret = soc_pcm_prepare(be_substream); | |
2461 | if (ret < 0) { | |
103d84a3 | 2462 | dev_err(be->dev, "ASoC: backend prepare failed %d\n", |
01d7584c LG |
2463 | ret); |
2464 | break; | |
2465 | } | |
2466 | ||
2467 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | |
2468 | } | |
2469 | return ret; | |
2470 | } | |
2471 | ||
45c0a188 | 2472 | static int dpcm_fe_dai_prepare(struct snd_pcm_substream *substream) |
01d7584c LG |
2473 | { |
2474 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2475 | int stream = substream->stream, ret = 0; | |
2476 | ||
2477 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2478 | ||
103d84a3 | 2479 | dev_dbg(fe->dev, "ASoC: prepare FE %s\n", fe->dai_link->name); |
01d7584c | 2480 | |
ea9d0d77 | 2481 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
2482 | |
2483 | /* there is no point preparing this FE if there are no BEs */ | |
2484 | if (list_empty(&fe->dpcm[stream].be_clients)) { | |
103d84a3 | 2485 | dev_err(fe->dev, "ASoC: no backend DAIs enabled for %s\n", |
01d7584c LG |
2486 | fe->dai_link->name); |
2487 | ret = -EINVAL; | |
2488 | goto out; | |
2489 | } | |
2490 | ||
2491 | ret = dpcm_be_dai_prepare(fe, substream->stream); | |
2492 | if (ret < 0) | |
2493 | goto out; | |
2494 | ||
2495 | /* call prepare on the frontend */ | |
2496 | ret = soc_pcm_prepare(substream); | |
2497 | if (ret < 0) { | |
103d84a3 | 2498 | dev_err(fe->dev,"ASoC: prepare FE %s failed\n", |
01d7584c LG |
2499 | fe->dai_link->name); |
2500 | goto out; | |
2501 | } | |
2502 | ||
2503 | /* run the stream event for each BE */ | |
2504 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START); | |
2505 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | |
2506 | ||
2507 | out: | |
ea9d0d77 | 2508 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
2509 | mutex_unlock(&fe->card->mutex); |
2510 | ||
2511 | return ret; | |
2512 | } | |
2513 | ||
618dae11 LG |
2514 | static int dpcm_run_update_shutdown(struct snd_soc_pcm_runtime *fe, int stream) |
2515 | { | |
07bf84aa LG |
2516 | struct snd_pcm_substream *substream = |
2517 | snd_soc_dpcm_get_substream(fe, stream); | |
2518 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; | |
618dae11 LG |
2519 | int err; |
2520 | ||
103d84a3 | 2521 | dev_dbg(fe->dev, "ASoC: runtime %s close on FE %s\n", |
618dae11 LG |
2522 | stream ? "capture" : "playback", fe->dai_link->name); |
2523 | ||
07bf84aa LG |
2524 | if (trigger == SND_SOC_DPCM_TRIGGER_BESPOKE) { |
2525 | /* call bespoke trigger - FE takes care of all BE triggers */ | |
103d84a3 | 2526 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd stop\n", |
07bf84aa LG |
2527 | fe->dai_link->name); |
2528 | ||
2529 | err = soc_pcm_bespoke_trigger(substream, SNDRV_PCM_TRIGGER_STOP); | |
2530 | if (err < 0) | |
103d84a3 | 2531 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", err); |
07bf84aa | 2532 | } else { |
103d84a3 | 2533 | dev_dbg(fe->dev, "ASoC: trigger FE %s cmd stop\n", |
07bf84aa LG |
2534 | fe->dai_link->name); |
2535 | ||
2536 | err = dpcm_be_dai_trigger(fe, stream, SNDRV_PCM_TRIGGER_STOP); | |
2537 | if (err < 0) | |
103d84a3 | 2538 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", err); |
07bf84aa | 2539 | } |
618dae11 LG |
2540 | |
2541 | err = dpcm_be_dai_hw_free(fe, stream); | |
2542 | if (err < 0) | |
103d84a3 | 2543 | dev_err(fe->dev,"ASoC: hw_free FE failed %d\n", err); |
618dae11 LG |
2544 | |
2545 | err = dpcm_be_dai_shutdown(fe, stream); | |
2546 | if (err < 0) | |
103d84a3 | 2547 | dev_err(fe->dev,"ASoC: shutdown FE failed %d\n", err); |
618dae11 LG |
2548 | |
2549 | /* run the stream event for each BE */ | |
2550 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_NOP); | |
2551 | ||
2552 | return 0; | |
2553 | } | |
2554 | ||
2555 | static int dpcm_run_update_startup(struct snd_soc_pcm_runtime *fe, int stream) | |
2556 | { | |
07bf84aa LG |
2557 | struct snd_pcm_substream *substream = |
2558 | snd_soc_dpcm_get_substream(fe, stream); | |
618dae11 | 2559 | struct snd_soc_dpcm *dpcm; |
07bf84aa | 2560 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; |
618dae11 | 2561 | int ret; |
a9764869 | 2562 | unsigned long flags; |
618dae11 | 2563 | |
103d84a3 | 2564 | dev_dbg(fe->dev, "ASoC: runtime %s open on FE %s\n", |
618dae11 LG |
2565 | stream ? "capture" : "playback", fe->dai_link->name); |
2566 | ||
2567 | /* Only start the BE if the FE is ready */ | |
2568 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_FREE || | |
2569 | fe->dpcm[stream].state == SND_SOC_DPCM_STATE_CLOSE) | |
2570 | return -EINVAL; | |
2571 | ||
2572 | /* startup must always be called for new BEs */ | |
2573 | ret = dpcm_be_dai_startup(fe, stream); | |
fffc0ca2 | 2574 | if (ret < 0) |
618dae11 | 2575 | goto disconnect; |
618dae11 LG |
2576 | |
2577 | /* keep going if FE state is > open */ | |
2578 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_OPEN) | |
2579 | return 0; | |
01d7584c | 2580 | |
618dae11 | 2581 | ret = dpcm_be_dai_hw_params(fe, stream); |
fffc0ca2 | 2582 | if (ret < 0) |
618dae11 | 2583 | goto close; |
618dae11 LG |
2584 | |
2585 | /* keep going if FE state is > hw_params */ | |
2586 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_PARAMS) | |
2587 | return 0; | |
2588 | ||
2589 | ||
2590 | ret = dpcm_be_dai_prepare(fe, stream); | |
fffc0ca2 | 2591 | if (ret < 0) |
618dae11 | 2592 | goto hw_free; |
618dae11 LG |
2593 | |
2594 | /* run the stream event for each BE */ | |
2595 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_NOP); | |
2596 | ||
2597 | /* keep going if FE state is > prepare */ | |
2598 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_PREPARE || | |
2599 | fe->dpcm[stream].state == SND_SOC_DPCM_STATE_STOP) | |
2600 | return 0; | |
2601 | ||
07bf84aa LG |
2602 | if (trigger == SND_SOC_DPCM_TRIGGER_BESPOKE) { |
2603 | /* call trigger on the frontend - FE takes care of all BE triggers */ | |
103d84a3 | 2604 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd start\n", |
07bf84aa | 2605 | fe->dai_link->name); |
618dae11 | 2606 | |
07bf84aa LG |
2607 | ret = soc_pcm_bespoke_trigger(substream, SNDRV_PCM_TRIGGER_START); |
2608 | if (ret < 0) { | |
103d84a3 | 2609 | dev_err(fe->dev,"ASoC: bespoke trigger FE failed %d\n", ret); |
07bf84aa LG |
2610 | goto hw_free; |
2611 | } | |
2612 | } else { | |
103d84a3 | 2613 | dev_dbg(fe->dev, "ASoC: trigger FE %s cmd start\n", |
07bf84aa LG |
2614 | fe->dai_link->name); |
2615 | ||
2616 | ret = dpcm_be_dai_trigger(fe, stream, | |
2617 | SNDRV_PCM_TRIGGER_START); | |
2618 | if (ret < 0) { | |
103d84a3 | 2619 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
07bf84aa LG |
2620 | goto hw_free; |
2621 | } | |
618dae11 LG |
2622 | } |
2623 | ||
2624 | return 0; | |
2625 | ||
2626 | hw_free: | |
2627 | dpcm_be_dai_hw_free(fe, stream); | |
2628 | close: | |
2629 | dpcm_be_dai_shutdown(fe, stream); | |
2630 | disconnect: | |
2631 | /* disconnect any non started BEs */ | |
a9764869 | 2632 | spin_lock_irqsave(&fe->card->dpcm_lock, flags); |
8d6258a4 | 2633 | for_each_dpcm_be(fe, stream, dpcm) { |
618dae11 LG |
2634 | struct snd_soc_pcm_runtime *be = dpcm->be; |
2635 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
2636 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
2637 | } | |
a9764869 | 2638 | spin_unlock_irqrestore(&fe->card->dpcm_lock, flags); |
618dae11 LG |
2639 | |
2640 | return ret; | |
2641 | } | |
2642 | ||
2643 | static int dpcm_run_new_update(struct snd_soc_pcm_runtime *fe, int stream) | |
2644 | { | |
2645 | int ret; | |
2646 | ||
ea9d0d77 | 2647 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_BE); |
618dae11 LG |
2648 | ret = dpcm_run_update_startup(fe, stream); |
2649 | if (ret < 0) | |
103d84a3 | 2650 | dev_err(fe->dev, "ASoC: failed to startup some BEs\n"); |
ea9d0d77 | 2651 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
618dae11 LG |
2652 | |
2653 | return ret; | |
2654 | } | |
2655 | ||
2656 | static int dpcm_run_old_update(struct snd_soc_pcm_runtime *fe, int stream) | |
2657 | { | |
2658 | int ret; | |
2659 | ||
ea9d0d77 | 2660 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_BE); |
618dae11 LG |
2661 | ret = dpcm_run_update_shutdown(fe, stream); |
2662 | if (ret < 0) | |
103d84a3 | 2663 | dev_err(fe->dev, "ASoC: failed to shutdown some BEs\n"); |
ea9d0d77 | 2664 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
618dae11 LG |
2665 | |
2666 | return ret; | |
2667 | } | |
2668 | ||
de15d7ff | 2669 | static int soc_dpcm_fe_runtime_update(struct snd_soc_pcm_runtime *fe, int new) |
618dae11 | 2670 | { |
de15d7ff JB |
2671 | struct snd_soc_dapm_widget_list *list; |
2672 | int count, paths; | |
618dae11 | 2673 | |
de15d7ff JB |
2674 | if (!fe->dai_link->dynamic) |
2675 | return 0; | |
618dae11 | 2676 | |
de15d7ff JB |
2677 | /* only check active links */ |
2678 | if (!fe->cpu_dai->active) | |
2679 | return 0; | |
618dae11 | 2680 | |
de15d7ff JB |
2681 | /* DAPM sync will call this to update DSP paths */ |
2682 | dev_dbg(fe->dev, "ASoC: DPCM %s runtime update for FE %s\n", | |
2683 | new ? "new" : "old", fe->dai_link->name); | |
618dae11 | 2684 | |
de15d7ff | 2685 | /* skip if FE doesn't have playback capability */ |
467fece8 KM |
2686 | if (!snd_soc_dai_stream_valid(fe->cpu_dai, SNDRV_PCM_STREAM_PLAYBACK) || |
2687 | !snd_soc_dai_stream_valid(fe->codec_dai, SNDRV_PCM_STREAM_PLAYBACK)) | |
de15d7ff | 2688 | goto capture; |
618dae11 | 2689 | |
de15d7ff JB |
2690 | /* skip if FE isn't currently playing */ |
2691 | if (!fe->cpu_dai->playback_active || !fe->codec_dai->playback_active) | |
2692 | goto capture; | |
618dae11 | 2693 | |
de15d7ff JB |
2694 | paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_PLAYBACK, &list); |
2695 | if (paths < 0) { | |
2696 | dev_warn(fe->dev, "ASoC: %s no valid %s path\n", | |
2697 | fe->dai_link->name, "playback"); | |
2698 | return paths; | |
2699 | } | |
618dae11 | 2700 | |
de15d7ff JB |
2701 | /* update any playback paths */ |
2702 | count = dpcm_process_paths(fe, SNDRV_PCM_STREAM_PLAYBACK, &list, new); | |
2703 | if (count) { | |
2704 | if (new) | |
2705 | dpcm_run_new_update(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2706 | else | |
618dae11 | 2707 | dpcm_run_old_update(fe, SNDRV_PCM_STREAM_PLAYBACK); |
618dae11 | 2708 | |
de15d7ff JB |
2709 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_PLAYBACK); |
2710 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2711 | } | |
2712 | ||
2713 | dpcm_path_put(&list); | |
2714 | ||
618dae11 | 2715 | capture: |
de15d7ff | 2716 | /* skip if FE doesn't have capture capability */ |
467fece8 KM |
2717 | if (!snd_soc_dai_stream_valid(fe->cpu_dai, SNDRV_PCM_STREAM_CAPTURE) || |
2718 | !snd_soc_dai_stream_valid(fe->codec_dai, SNDRV_PCM_STREAM_CAPTURE)) | |
de15d7ff | 2719 | return 0; |
075207d2 | 2720 | |
de15d7ff JB |
2721 | /* skip if FE isn't currently capturing */ |
2722 | if (!fe->cpu_dai->capture_active || !fe->codec_dai->capture_active) | |
2723 | return 0; | |
618dae11 | 2724 | |
de15d7ff JB |
2725 | paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_CAPTURE, &list); |
2726 | if (paths < 0) { | |
2727 | dev_warn(fe->dev, "ASoC: %s no valid %s path\n", | |
2728 | fe->dai_link->name, "capture"); | |
2729 | return paths; | |
2730 | } | |
618dae11 | 2731 | |
de15d7ff JB |
2732 | /* update any old capture paths */ |
2733 | count = dpcm_process_paths(fe, SNDRV_PCM_STREAM_CAPTURE, &list, new); | |
2734 | if (count) { | |
2735 | if (new) | |
618dae11 | 2736 | dpcm_run_new_update(fe, SNDRV_PCM_STREAM_CAPTURE); |
de15d7ff | 2737 | else |
618dae11 | 2738 | dpcm_run_old_update(fe, SNDRV_PCM_STREAM_CAPTURE); |
618dae11 | 2739 | |
de15d7ff JB |
2740 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_CAPTURE); |
2741 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_CAPTURE); | |
618dae11 LG |
2742 | } |
2743 | ||
de15d7ff JB |
2744 | dpcm_path_put(&list); |
2745 | ||
618dae11 LG |
2746 | return 0; |
2747 | } | |
de15d7ff JB |
2748 | |
2749 | /* Called by DAPM mixer/mux changes to update audio routing between PCMs and | |
2750 | * any DAI links. | |
2751 | */ | |
2752 | int soc_dpcm_runtime_update(struct snd_soc_card *card) | |
2753 | { | |
2754 | struct snd_soc_pcm_runtime *fe; | |
2755 | int ret = 0; | |
2756 | ||
2757 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2758 | /* shutdown all old paths first */ | |
bcb1fd1f | 2759 | for_each_card_rtds(card, fe) { |
de15d7ff JB |
2760 | ret = soc_dpcm_fe_runtime_update(fe, 0); |
2761 | if (ret) | |
2762 | goto out; | |
2763 | } | |
2764 | ||
2765 | /* bring new paths up */ | |
bcb1fd1f | 2766 | for_each_card_rtds(card, fe) { |
de15d7ff JB |
2767 | ret = soc_dpcm_fe_runtime_update(fe, 1); |
2768 | if (ret) | |
2769 | goto out; | |
2770 | } | |
2771 | ||
2772 | out: | |
2773 | mutex_unlock(&card->mutex); | |
2774 | return ret; | |
2775 | } | |
01d7584c LG |
2776 | int soc_dpcm_be_digital_mute(struct snd_soc_pcm_runtime *fe, int mute) |
2777 | { | |
2778 | struct snd_soc_dpcm *dpcm; | |
7afecb30 | 2779 | struct snd_soc_dai *dai; |
01d7584c | 2780 | |
8d6258a4 | 2781 | for_each_dpcm_be(fe, SNDRV_PCM_STREAM_PLAYBACK, dpcm) { |
01d7584c LG |
2782 | |
2783 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2e5894d7 | 2784 | int i; |
01d7584c LG |
2785 | |
2786 | if (be->dai_link->ignore_suspend) | |
2787 | continue; | |
2788 | ||
7afecb30 | 2789 | for_each_rtd_codec_dai(be, i, dai) { |
2e5894d7 BC |
2790 | struct snd_soc_dai_driver *drv = dai->driver; |
2791 | ||
2792 | dev_dbg(be->dev, "ASoC: BE digital mute %s\n", | |
2793 | be->dai_link->name); | |
01d7584c | 2794 | |
2e5894d7 BC |
2795 | if (drv->ops && drv->ops->digital_mute && |
2796 | dai->playback_active) | |
2797 | drv->ops->digital_mute(dai, mute); | |
2798 | } | |
01d7584c LG |
2799 | } |
2800 | ||
2801 | return 0; | |
2802 | } | |
2803 | ||
45c0a188 | 2804 | static int dpcm_fe_dai_open(struct snd_pcm_substream *fe_substream) |
01d7584c LG |
2805 | { |
2806 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
2807 | struct snd_soc_dpcm *dpcm; | |
2808 | struct snd_soc_dapm_widget_list *list; | |
2809 | int ret; | |
2810 | int stream = fe_substream->stream; | |
2811 | ||
2812 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2813 | fe->dpcm[stream].runtime = fe_substream->runtime; | |
2814 | ||
8f70e515 QZ |
2815 | ret = dpcm_path_get(fe, stream, &list); |
2816 | if (ret < 0) { | |
2817 | mutex_unlock(&fe->card->mutex); | |
2818 | return ret; | |
2819 | } else if (ret == 0) { | |
103d84a3 | 2820 | dev_dbg(fe->dev, "ASoC: %s no valid %s route\n", |
01d7584c | 2821 | fe->dai_link->name, stream ? "capture" : "playback"); |
01d7584c LG |
2822 | } |
2823 | ||
2824 | /* calculate valid and active FE <-> BE dpcms */ | |
2825 | dpcm_process_paths(fe, stream, &list, 1); | |
2826 | ||
2827 | ret = dpcm_fe_dai_startup(fe_substream); | |
2828 | if (ret < 0) { | |
2829 | /* clean up all links */ | |
8d6258a4 | 2830 | for_each_dpcm_be(fe, stream, dpcm) |
01d7584c LG |
2831 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; |
2832 | ||
2833 | dpcm_be_disconnect(fe, stream); | |
2834 | fe->dpcm[stream].runtime = NULL; | |
2835 | } | |
2836 | ||
2837 | dpcm_clear_pending_state(fe, stream); | |
2838 | dpcm_path_put(&list); | |
2839 | mutex_unlock(&fe->card->mutex); | |
2840 | return ret; | |
2841 | } | |
2842 | ||
45c0a188 | 2843 | static int dpcm_fe_dai_close(struct snd_pcm_substream *fe_substream) |
01d7584c LG |
2844 | { |
2845 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
2846 | struct snd_soc_dpcm *dpcm; | |
2847 | int stream = fe_substream->stream, ret; | |
2848 | ||
2849 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2850 | ret = dpcm_fe_dai_shutdown(fe_substream); | |
2851 | ||
2852 | /* mark FE's links ready to prune */ | |
8d6258a4 | 2853 | for_each_dpcm_be(fe, stream, dpcm) |
01d7584c LG |
2854 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; |
2855 | ||
2856 | dpcm_be_disconnect(fe, stream); | |
2857 | ||
2858 | fe->dpcm[stream].runtime = NULL; | |
2859 | mutex_unlock(&fe->card->mutex); | |
2860 | return ret; | |
2861 | } | |
2862 | ||
5d61f0ba TI |
2863 | static void soc_pcm_private_free(struct snd_pcm *pcm) |
2864 | { | |
2865 | struct snd_soc_pcm_runtime *rtd = pcm->private_data; | |
f523aceb | 2866 | |
f30a4c31 KM |
2867 | /* need to sync the delayed work before releasing resources */ |
2868 | flush_delayed_work(&rtd->delayed_work); | |
79776da0 | 2869 | snd_soc_pcm_component_free(pcm); |
5d61f0ba TI |
2870 | } |
2871 | ||
ddee627c LG |
2872 | /* create a new pcm */ |
2873 | int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) | |
2874 | { | |
2e5894d7 | 2875 | struct snd_soc_dai *codec_dai; |
ddee627c | 2876 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
f523aceb | 2877 | struct snd_soc_rtdcom_list *rtdcom; |
ddee627c LG |
2878 | struct snd_pcm *pcm; |
2879 | char new_name[64]; | |
2880 | int ret = 0, playback = 0, capture = 0; | |
2e5894d7 | 2881 | int i; |
ddee627c | 2882 | |
01d7584c | 2883 | if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) { |
1e9de42f LG |
2884 | playback = rtd->dai_link->dpcm_playback; |
2885 | capture = rtd->dai_link->dpcm_capture; | |
01d7584c | 2886 | } else { |
a342031c JB |
2887 | /* Adapt stream for codec2codec links */ |
2888 | struct snd_soc_pcm_stream *cpu_capture = rtd->dai_link->params ? | |
2889 | &cpu_dai->driver->playback : &cpu_dai->driver->capture; | |
2890 | struct snd_soc_pcm_stream *cpu_playback = rtd->dai_link->params ? | |
2891 | &cpu_dai->driver->capture : &cpu_dai->driver->playback; | |
2892 | ||
0b7990e3 | 2893 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
467fece8 KM |
2894 | if (snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_PLAYBACK) && |
2895 | snd_soc_dai_stream_valid(cpu_dai, SNDRV_PCM_STREAM_PLAYBACK)) | |
2e5894d7 | 2896 | playback = 1; |
467fece8 KM |
2897 | if (snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_CAPTURE) && |
2898 | snd_soc_dai_stream_valid(cpu_dai, SNDRV_PCM_STREAM_CAPTURE)) | |
2e5894d7 BC |
2899 | capture = 1; |
2900 | } | |
a342031c JB |
2901 | |
2902 | capture = capture && cpu_capture->channels_min; | |
2903 | playback = playback && cpu_playback->channels_min; | |
01d7584c LG |
2904 | } |
2905 | ||
d6bead02 FE |
2906 | if (rtd->dai_link->playback_only) { |
2907 | playback = 1; | |
2908 | capture = 0; | |
2909 | } | |
2910 | ||
2911 | if (rtd->dai_link->capture_only) { | |
2912 | playback = 0; | |
2913 | capture = 1; | |
2914 | } | |
2915 | ||
01d7584c | 2916 | /* create the PCM */ |
a342031c JB |
2917 | if (rtd->dai_link->params) { |
2918 | snprintf(new_name, sizeof(new_name), "codec2codec(%s)", | |
2919 | rtd->dai_link->stream_name); | |
2920 | ||
2921 | ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num, | |
2922 | playback, capture, &pcm); | |
2923 | } else if (rtd->dai_link->no_pcm) { | |
01d7584c LG |
2924 | snprintf(new_name, sizeof(new_name), "(%s)", |
2925 | rtd->dai_link->stream_name); | |
2926 | ||
2927 | ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num, | |
2928 | playback, capture, &pcm); | |
2929 | } else { | |
2930 | if (rtd->dai_link->dynamic) | |
2931 | snprintf(new_name, sizeof(new_name), "%s (*)", | |
2932 | rtd->dai_link->stream_name); | |
2933 | else | |
2934 | snprintf(new_name, sizeof(new_name), "%s %s-%d", | |
2e5894d7 BC |
2935 | rtd->dai_link->stream_name, |
2936 | (rtd->num_codecs > 1) ? | |
2937 | "multicodec" : rtd->codec_dai->name, num); | |
01d7584c LG |
2938 | |
2939 | ret = snd_pcm_new(rtd->card->snd_card, new_name, num, playback, | |
2940 | capture, &pcm); | |
2941 | } | |
ddee627c | 2942 | if (ret < 0) { |
103d84a3 | 2943 | dev_err(rtd->card->dev, "ASoC: can't create pcm for %s\n", |
5cb9b748 | 2944 | rtd->dai_link->name); |
ddee627c LG |
2945 | return ret; |
2946 | } | |
103d84a3 | 2947 | dev_dbg(rtd->card->dev, "ASoC: registered pcm #%d %s\n",num, new_name); |
ddee627c LG |
2948 | |
2949 | /* DAPM dai link stream work */ | |
a342031c JB |
2950 | if (rtd->dai_link->params) |
2951 | INIT_DELAYED_WORK(&rtd->delayed_work, | |
2952 | codec2codec_close_delayed_work); | |
2953 | else | |
2954 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
ddee627c | 2955 | |
48c7699f | 2956 | pcm->nonatomic = rtd->dai_link->nonatomic; |
ddee627c LG |
2957 | rtd->pcm = pcm; |
2958 | pcm->private_data = rtd; | |
01d7584c | 2959 | |
a342031c | 2960 | if (rtd->dai_link->no_pcm || rtd->dai_link->params) { |
01d7584c LG |
2961 | if (playback) |
2962 | pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd; | |
2963 | if (capture) | |
2964 | pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->private_data = rtd; | |
2965 | goto out; | |
2966 | } | |
2967 | ||
2968 | /* ASoC PCM operations */ | |
2969 | if (rtd->dai_link->dynamic) { | |
2970 | rtd->ops.open = dpcm_fe_dai_open; | |
2971 | rtd->ops.hw_params = dpcm_fe_dai_hw_params; | |
2972 | rtd->ops.prepare = dpcm_fe_dai_prepare; | |
2973 | rtd->ops.trigger = dpcm_fe_dai_trigger; | |
2974 | rtd->ops.hw_free = dpcm_fe_dai_hw_free; | |
2975 | rtd->ops.close = dpcm_fe_dai_close; | |
2976 | rtd->ops.pointer = soc_pcm_pointer; | |
96a47908 | 2977 | rtd->ops.ioctl = snd_soc_pcm_component_ioctl; |
01d7584c LG |
2978 | } else { |
2979 | rtd->ops.open = soc_pcm_open; | |
2980 | rtd->ops.hw_params = soc_pcm_hw_params; | |
2981 | rtd->ops.prepare = soc_pcm_prepare; | |
2982 | rtd->ops.trigger = soc_pcm_trigger; | |
2983 | rtd->ops.hw_free = soc_pcm_hw_free; | |
2984 | rtd->ops.close = soc_pcm_close; | |
2985 | rtd->ops.pointer = soc_pcm_pointer; | |
96a47908 | 2986 | rtd->ops.ioctl = snd_soc_pcm_component_ioctl; |
01d7584c LG |
2987 | } |
2988 | ||
b8135864 | 2989 | for_each_rtdcom(rtd, rtdcom) { |
e2cb4a14 KM |
2990 | const struct snd_soc_component_driver *drv = rtdcom->component->driver; |
2991 | const struct snd_pcm_ops *ops = drv->ops; | |
b8135864 KM |
2992 | |
2993 | if (!ops) | |
2994 | continue; | |
2995 | ||
e2cb4a14 | 2996 | if (ops->copy_user || drv->copy_user) |
82d81f5c | 2997 | rtd->ops.copy_user = snd_soc_pcm_component_copy_user; |
e2cb4a14 | 2998 | if (ops->page || drv->page) |
9c712e4f | 2999 | rtd->ops.page = snd_soc_pcm_component_page; |
e2cb4a14 | 3000 | if (ops->mmap || drv->mmap) |
205875e1 | 3001 | rtd->ops.mmap = snd_soc_pcm_component_mmap; |
ddee627c LG |
3002 | } |
3003 | ||
3004 | if (playback) | |
01d7584c | 3005 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &rtd->ops); |
ddee627c LG |
3006 | |
3007 | if (capture) | |
01d7584c | 3008 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &rtd->ops); |
ddee627c | 3009 | |
7484291e KM |
3010 | ret = snd_soc_pcm_component_new(pcm); |
3011 | if (ret < 0) { | |
3012 | dev_err(rtd->dev, "ASoC: pcm constructor failed: %d\n", ret); | |
3013 | return ret; | |
ddee627c | 3014 | } |
c641e5b2 | 3015 | |
5d61f0ba | 3016 | pcm->private_free = soc_pcm_private_free; |
3d21ef0b | 3017 | pcm->no_device_suspend = true; |
01d7584c | 3018 | out: |
2e5894d7 BC |
3019 | dev_info(rtd->card->dev, "%s <-> %s mapping ok\n", |
3020 | (rtd->num_codecs > 1) ? "multicodec" : rtd->codec_dai->name, | |
3021 | cpu_dai->name); | |
ddee627c LG |
3022 | return ret; |
3023 | } | |
01d7584c LG |
3024 | |
3025 | /* is the current PCM operation for this FE ? */ | |
3026 | int snd_soc_dpcm_fe_can_update(struct snd_soc_pcm_runtime *fe, int stream) | |
3027 | { | |
3028 | if (fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) | |
3029 | return 1; | |
3030 | return 0; | |
3031 | } | |
3032 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_fe_can_update); | |
3033 | ||
3034 | /* is the current PCM operation for this BE ? */ | |
3035 | int snd_soc_dpcm_be_can_update(struct snd_soc_pcm_runtime *fe, | |
3036 | struct snd_soc_pcm_runtime *be, int stream) | |
3037 | { | |
3038 | if ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) || | |
3039 | ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_BE) && | |
3040 | be->dpcm[stream].runtime_update)) | |
3041 | return 1; | |
3042 | return 0; | |
3043 | } | |
3044 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_can_update); | |
3045 | ||
3046 | /* get the substream for this BE */ | |
3047 | struct snd_pcm_substream * | |
3048 | snd_soc_dpcm_get_substream(struct snd_soc_pcm_runtime *be, int stream) | |
3049 | { | |
3050 | return be->pcm->streams[stream].substream; | |
3051 | } | |
3052 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_get_substream); | |
3053 | ||
3054 | /* get the BE runtime state */ | |
3055 | enum snd_soc_dpcm_state | |
3056 | snd_soc_dpcm_be_get_state(struct snd_soc_pcm_runtime *be, int stream) | |
3057 | { | |
3058 | return be->dpcm[stream].state; | |
3059 | } | |
3060 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_get_state); | |
3061 | ||
3062 | /* set the BE runtime state */ | |
3063 | void snd_soc_dpcm_be_set_state(struct snd_soc_pcm_runtime *be, | |
3064 | int stream, enum snd_soc_dpcm_state state) | |
3065 | { | |
3066 | be->dpcm[stream].state = state; | |
3067 | } | |
3068 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_set_state); | |
3069 | ||
3070 | /* | |
3071 | * We can only hw_free, stop, pause or suspend a BE DAI if any of it's FE | |
3072 | * are not running, paused or suspended for the specified stream direction. | |
3073 | */ | |
3074 | int snd_soc_dpcm_can_be_free_stop(struct snd_soc_pcm_runtime *fe, | |
3075 | struct snd_soc_pcm_runtime *be, int stream) | |
3076 | { | |
3077 | struct snd_soc_dpcm *dpcm; | |
3078 | int state; | |
a9764869 KC |
3079 | int ret = 1; |
3080 | unsigned long flags; | |
01d7584c | 3081 | |
a9764869 | 3082 | spin_lock_irqsave(&fe->card->dpcm_lock, flags); |
d2e24d64 | 3083 | for_each_dpcm_fe(be, stream, dpcm) { |
01d7584c LG |
3084 | |
3085 | if (dpcm->fe == fe) | |
3086 | continue; | |
3087 | ||
3088 | state = dpcm->fe->dpcm[stream].state; | |
3089 | if (state == SND_SOC_DPCM_STATE_START || | |
3090 | state == SND_SOC_DPCM_STATE_PAUSED || | |
a9764869 KC |
3091 | state == SND_SOC_DPCM_STATE_SUSPEND) { |
3092 | ret = 0; | |
3093 | break; | |
3094 | } | |
01d7584c | 3095 | } |
a9764869 | 3096 | spin_unlock_irqrestore(&fe->card->dpcm_lock, flags); |
01d7584c LG |
3097 | |
3098 | /* it's safe to free/stop this BE DAI */ | |
a9764869 | 3099 | return ret; |
01d7584c LG |
3100 | } |
3101 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_free_stop); | |
3102 | ||
3103 | /* | |
3104 | * We can only change hw params a BE DAI if any of it's FE are not prepared, | |
3105 | * running, paused or suspended for the specified stream direction. | |
3106 | */ | |
3107 | int snd_soc_dpcm_can_be_params(struct snd_soc_pcm_runtime *fe, | |
3108 | struct snd_soc_pcm_runtime *be, int stream) | |
3109 | { | |
3110 | struct snd_soc_dpcm *dpcm; | |
3111 | int state; | |
a9764869 KC |
3112 | int ret = 1; |
3113 | unsigned long flags; | |
01d7584c | 3114 | |
a9764869 | 3115 | spin_lock_irqsave(&fe->card->dpcm_lock, flags); |
d2e24d64 | 3116 | for_each_dpcm_fe(be, stream, dpcm) { |
01d7584c LG |
3117 | |
3118 | if (dpcm->fe == fe) | |
3119 | continue; | |
3120 | ||
3121 | state = dpcm->fe->dpcm[stream].state; | |
3122 | if (state == SND_SOC_DPCM_STATE_START || | |
3123 | state == SND_SOC_DPCM_STATE_PAUSED || | |
3124 | state == SND_SOC_DPCM_STATE_SUSPEND || | |
a9764869 KC |
3125 | state == SND_SOC_DPCM_STATE_PREPARE) { |
3126 | ret = 0; | |
3127 | break; | |
3128 | } | |
01d7584c | 3129 | } |
a9764869 | 3130 | spin_unlock_irqrestore(&fe->card->dpcm_lock, flags); |
01d7584c LG |
3131 | |
3132 | /* it's safe to change hw_params */ | |
a9764869 | 3133 | return ret; |
01d7584c LG |
3134 | } |
3135 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_params); | |
f86dcef8 LG |
3136 | |
3137 | #ifdef CONFIG_DEBUG_FS | |
85280141 | 3138 | static const char *dpcm_state_string(enum snd_soc_dpcm_state state) |
f86dcef8 LG |
3139 | { |
3140 | switch (state) { | |
3141 | case SND_SOC_DPCM_STATE_NEW: | |
3142 | return "new"; | |
3143 | case SND_SOC_DPCM_STATE_OPEN: | |
3144 | return "open"; | |
3145 | case SND_SOC_DPCM_STATE_HW_PARAMS: | |
3146 | return "hw_params"; | |
3147 | case SND_SOC_DPCM_STATE_PREPARE: | |
3148 | return "prepare"; | |
3149 | case SND_SOC_DPCM_STATE_START: | |
3150 | return "start"; | |
3151 | case SND_SOC_DPCM_STATE_STOP: | |
3152 | return "stop"; | |
3153 | case SND_SOC_DPCM_STATE_SUSPEND: | |
3154 | return "suspend"; | |
3155 | case SND_SOC_DPCM_STATE_PAUSED: | |
3156 | return "paused"; | |
3157 | case SND_SOC_DPCM_STATE_HW_FREE: | |
3158 | return "hw_free"; | |
3159 | case SND_SOC_DPCM_STATE_CLOSE: | |
3160 | return "close"; | |
3161 | } | |
3162 | ||
3163 | return "unknown"; | |
3164 | } | |
3165 | ||
f86dcef8 LG |
3166 | static ssize_t dpcm_show_state(struct snd_soc_pcm_runtime *fe, |
3167 | int stream, char *buf, size_t size) | |
3168 | { | |
3169 | struct snd_pcm_hw_params *params = &fe->dpcm[stream].hw_params; | |
3170 | struct snd_soc_dpcm *dpcm; | |
3171 | ssize_t offset = 0; | |
a9764869 | 3172 | unsigned long flags; |
f86dcef8 LG |
3173 | |
3174 | /* FE state */ | |
3175 | offset += snprintf(buf + offset, size - offset, | |
3176 | "[%s - %s]\n", fe->dai_link->name, | |
3177 | stream ? "Capture" : "Playback"); | |
3178 | ||
3179 | offset += snprintf(buf + offset, size - offset, "State: %s\n", | |
3180 | dpcm_state_string(fe->dpcm[stream].state)); | |
3181 | ||
3182 | if ((fe->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) && | |
3183 | (fe->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP)) | |
3184 | offset += snprintf(buf + offset, size - offset, | |
3185 | "Hardware Params: " | |
3186 | "Format = %s, Channels = %d, Rate = %d\n", | |
3187 | snd_pcm_format_name(params_format(params)), | |
3188 | params_channels(params), | |
3189 | params_rate(params)); | |
3190 | ||
3191 | /* BEs state */ | |
3192 | offset += snprintf(buf + offset, size - offset, "Backends:\n"); | |
3193 | ||
3194 | if (list_empty(&fe->dpcm[stream].be_clients)) { | |
3195 | offset += snprintf(buf + offset, size - offset, | |
3196 | " No active DSP links\n"); | |
3197 | goto out; | |
3198 | } | |
3199 | ||
a9764869 | 3200 | spin_lock_irqsave(&fe->card->dpcm_lock, flags); |
8d6258a4 | 3201 | for_each_dpcm_be(fe, stream, dpcm) { |
f86dcef8 LG |
3202 | struct snd_soc_pcm_runtime *be = dpcm->be; |
3203 | params = &dpcm->hw_params; | |
3204 | ||
3205 | offset += snprintf(buf + offset, size - offset, | |
3206 | "- %s\n", be->dai_link->name); | |
3207 | ||
3208 | offset += snprintf(buf + offset, size - offset, | |
3209 | " State: %s\n", | |
3210 | dpcm_state_string(be->dpcm[stream].state)); | |
3211 | ||
3212 | if ((be->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) && | |
3213 | (be->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP)) | |
3214 | offset += snprintf(buf + offset, size - offset, | |
3215 | " Hardware Params: " | |
3216 | "Format = %s, Channels = %d, Rate = %d\n", | |
3217 | snd_pcm_format_name(params_format(params)), | |
3218 | params_channels(params), | |
3219 | params_rate(params)); | |
3220 | } | |
a9764869 | 3221 | spin_unlock_irqrestore(&fe->card->dpcm_lock, flags); |
f86dcef8 LG |
3222 | out: |
3223 | return offset; | |
3224 | } | |
3225 | ||
3226 | static ssize_t dpcm_state_read_file(struct file *file, char __user *user_buf, | |
3227 | size_t count, loff_t *ppos) | |
3228 | { | |
3229 | struct snd_soc_pcm_runtime *fe = file->private_data; | |
3230 | ssize_t out_count = PAGE_SIZE, offset = 0, ret = 0; | |
3231 | char *buf; | |
3232 | ||
3233 | buf = kmalloc(out_count, GFP_KERNEL); | |
3234 | if (!buf) | |
3235 | return -ENOMEM; | |
3236 | ||
467fece8 | 3237 | if (snd_soc_dai_stream_valid(fe->cpu_dai, SNDRV_PCM_STREAM_PLAYBACK)) |
f86dcef8 LG |
3238 | offset += dpcm_show_state(fe, SNDRV_PCM_STREAM_PLAYBACK, |
3239 | buf + offset, out_count - offset); | |
3240 | ||
467fece8 | 3241 | if (snd_soc_dai_stream_valid(fe->cpu_dai, SNDRV_PCM_STREAM_CAPTURE)) |
f86dcef8 LG |
3242 | offset += dpcm_show_state(fe, SNDRV_PCM_STREAM_CAPTURE, |
3243 | buf + offset, out_count - offset); | |
3244 | ||
f57b8488 | 3245 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, offset); |
f86dcef8 | 3246 | |
f57b8488 LG |
3247 | kfree(buf); |
3248 | return ret; | |
f86dcef8 LG |
3249 | } |
3250 | ||
3251 | static const struct file_operations dpcm_state_fops = { | |
f57b8488 | 3252 | .open = simple_open, |
f86dcef8 LG |
3253 | .read = dpcm_state_read_file, |
3254 | .llseek = default_llseek, | |
3255 | }; | |
3256 | ||
2e55b90a | 3257 | void soc_dpcm_debugfs_add(struct snd_soc_pcm_runtime *rtd) |
f86dcef8 | 3258 | { |
b3bba9a1 | 3259 | if (!rtd->dai_link) |
2e55b90a | 3260 | return; |
b3bba9a1 | 3261 | |
596becd3 KM |
3262 | if (!rtd->dai_link->dynamic) |
3263 | return; | |
3264 | ||
6553bf06 LPC |
3265 | if (!rtd->card->debugfs_card_root) |
3266 | return; | |
b3bba9a1 | 3267 | |
f86dcef8 LG |
3268 | rtd->debugfs_dpcm_root = debugfs_create_dir(rtd->dai_link->name, |
3269 | rtd->card->debugfs_card_root); | |
f86dcef8 | 3270 | |
f1e3f409 FE |
3271 | debugfs_create_file("state", 0444, rtd->debugfs_dpcm_root, |
3272 | rtd, &dpcm_state_fops); | |
f86dcef8 LG |
3273 | } |
3274 | #endif |