Commit | Line | Data |
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e149ca29 | 1 | // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) |
868bd00f LG |
2 | // |
3 | // This file is provided under a dual BSD/GPLv2 license. When using or | |
4 | // redistributing this file, you may do so under either license. | |
5 | // | |
6 | // Copyright(c) 2018 Intel Corporation. All rights reserved. | |
7 | // | |
8 | // Author: Liam Girdwood <liam.r.girdwood@linux.intel.com> | |
9 | // | |
10 | // PCM Layer, interface between ALSA and IPC. | |
11 | // | |
12 | ||
13 | #include <linux/pm_runtime.h> | |
14 | #include <sound/pcm_params.h> | |
15 | #include <sound/sof.h> | |
bcd2cc35 | 16 | #include <trace/events/sof.h> |
6ace85b9 | 17 | #include "sof-of-dev.h" |
868bd00f | 18 | #include "sof-priv.h" |
ee1e79b7 | 19 | #include "sof-audio.h" |
ee844305 | 20 | #include "sof-utils.h" |
3dc0d709 | 21 | #include "ops.h" |
868bd00f | 22 | |
868bd00f | 23 | /* Create DMA buffer page table for DSP */ |
1c91d77e KM |
24 | static int create_page_table(struct snd_soc_component *component, |
25 | struct snd_pcm_substream *substream, | |
868bd00f LG |
26 | unsigned char *dma_area, size_t size) |
27 | { | |
1205300a | 28 | struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
868bd00f LG |
29 | struct snd_sof_pcm *spcm; |
30 | struct snd_dma_buffer *dmab = snd_pcm_get_dma_buf(substream); | |
31 | int stream = substream->stream; | |
32 | ||
ee1e79b7 | 33 | spcm = snd_sof_find_spcm_dai(component, rtd); |
868bd00f LG |
34 | if (!spcm) |
35 | return -EINVAL; | |
36 | ||
ee1e79b7 | 37 | return snd_sof_create_page_table(component->dev, dmab, |
868bd00f LG |
38 | spcm->stream[stream].page_table.area, size); |
39 | } | |
40 | ||
e2803e61 KJ |
41 | /* |
42 | * sof pcm period elapse work | |
43 | */ | |
858f7a5c | 44 | static void snd_sof_pcm_period_elapsed_work(struct work_struct *work) |
e2803e61 KJ |
45 | { |
46 | struct snd_sof_pcm_stream *sps = | |
47 | container_of(work, struct snd_sof_pcm_stream, | |
48 | period_elapsed_work); | |
49 | ||
50 | snd_pcm_period_elapsed(sps->substream); | |
51 | } | |
52 | ||
858f7a5c DB |
53 | void snd_sof_pcm_init_elapsed_work(struct work_struct *work) |
54 | { | |
55 | INIT_WORK(work, snd_sof_pcm_period_elapsed_work); | |
56 | } | |
57 | ||
e2803e61 KJ |
58 | /* |
59 | * sof pcm period elapse, this could be called at irq thread context. | |
60 | */ | |
61 | void snd_sof_pcm_period_elapsed(struct snd_pcm_substream *substream) | |
62 | { | |
1205300a | 63 | struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
e2803e61 | 64 | struct snd_soc_component *component = |
ee1e79b7 | 65 | snd_soc_rtdcom_lookup(rtd, SOF_AUDIO_PCM_DRV_NAME); |
e2803e61 KJ |
66 | struct snd_sof_pcm *spcm; |
67 | ||
ee1e79b7 | 68 | spcm = snd_sof_find_spcm_dai(component, rtd); |
e2803e61 | 69 | if (!spcm) { |
ee1e79b7 | 70 | dev_err(component->dev, |
e2803e61 KJ |
71 | "error: period elapsed for unknown stream!\n"); |
72 | return; | |
73 | } | |
74 | ||
75 | /* | |
76 | * snd_pcm_period_elapsed() can be called in interrupt context | |
77 | * before IRQ_HANDLED is returned. Inside snd_pcm_period_elapsed(), | |
78 | * when the PCM is done draining or xrun happened, a STOP IPC will | |
79 | * then be sent and this IPC will hit IPC timeout. | |
80 | * To avoid sending IPC before the previous IPC is handled, we | |
81 | * schedule delayed work here to call the snd_pcm_period_elapsed(). | |
82 | */ | |
83 | schedule_work(&spcm->stream[substream->stream].period_elapsed_work); | |
84 | } | |
85 | EXPORT_SYMBOL(snd_sof_pcm_period_elapsed); | |
86 | ||
f18ad9ca RS |
87 | static int |
88 | sof_pcm_setup_connected_widgets(struct snd_sof_dev *sdev, struct snd_soc_pcm_runtime *rtd, | |
66344c6d RS |
89 | struct snd_sof_pcm *spcm, struct snd_pcm_hw_params *params, |
90 | struct snd_sof_platform_stream_params *platform_params, int dir) | |
5fcdbb2d RS |
91 | { |
92 | struct snd_soc_dai *dai; | |
93 | int ret, j; | |
94 | ||
95 | /* query DAPM for list of connected widgets and set them up */ | |
96 | for_each_rtd_cpu_dais(rtd, j, dai) { | |
97 | struct snd_soc_dapm_widget_list *list; | |
98 | ||
99 | ret = snd_soc_dapm_dai_get_connected_widgets(dai, dir, &list, | |
100 | dpcm_end_walk_at_be); | |
101 | if (ret < 0) { | |
102 | dev_err(sdev->dev, "error: dai %s has no valid %s path\n", dai->name, | |
103 | dir == SNDRV_PCM_STREAM_PLAYBACK ? "playback" : "capture"); | |
104 | return ret; | |
105 | } | |
106 | ||
107 | spcm->stream[dir].list = list; | |
108 | ||
66344c6d | 109 | ret = sof_widget_list_setup(sdev, spcm, params, platform_params, dir); |
5fcdbb2d RS |
110 | if (ret < 0) { |
111 | dev_err(sdev->dev, "error: failed widget list set up for pcm %d dir %d\n", | |
112 | spcm->pcm.pcm_id, dir); | |
113 | spcm->stream[dir].list = NULL; | |
114 | snd_soc_dapm_dai_free_widgets(&list); | |
115 | return ret; | |
116 | } | |
117 | } | |
118 | ||
119 | return 0; | |
120 | } | |
121 | ||
1c91d77e KM |
122 | static int sof_pcm_hw_params(struct snd_soc_component *component, |
123 | struct snd_pcm_substream *substream, | |
868bd00f LG |
124 | struct snd_pcm_hw_params *params) |
125 | { | |
868bd00f | 126 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
621fd48c | 127 | struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
148dd6a2 | 128 | const struct sof_ipc_pcm_ops *pcm_ops = sof_ipc_get_ops(sdev, pcm); |
31f60a0c | 129 | struct snd_sof_platform_stream_params platform_params = { 0 }; |
621fd48c | 130 | struct snd_pcm_runtime *runtime = substream->runtime; |
868bd00f | 131 | struct snd_sof_pcm *spcm; |
868bd00f LG |
132 | int ret; |
133 | ||
134 | /* nothing to do for BE */ | |
135 | if (rtd->dai_link->no_pcm) | |
136 | return 0; | |
137 | ||
ee1e79b7 | 138 | spcm = snd_sof_find_spcm_dai(component, rtd); |
868bd00f LG |
139 | if (!spcm) |
140 | return -EINVAL; | |
141 | ||
cfe8191b KV |
142 | /* |
143 | * Handle repeated calls to hw_params() without free_pcm() in | |
144 | * between. At least ALSA OSS emulation depends on this. | |
145 | */ | |
148dd6a2 | 146 | if (pcm_ops && pcm_ops->hw_free && spcm->prepared[substream->stream]) { |
4123c24b RS |
147 | ret = pcm_ops->hw_free(component, substream); |
148 | if (ret < 0) | |
149 | return ret; | |
150 | ||
151 | spcm->prepared[substream->stream] = false; | |
152 | } | |
cfe8191b | 153 | |
ee1e79b7 | 154 | dev_dbg(component->dev, "pcm: hw params stream %d dir %d\n", |
868bd00f LG |
155 | spcm->pcm.pcm_id, substream->stream); |
156 | ||
f0d31dbb RS |
157 | ret = snd_sof_pcm_platform_hw_params(sdev, substream, params, &platform_params); |
158 | if (ret < 0) { | |
159 | dev_err(component->dev, "platform hw params failed\n"); | |
160 | return ret; | |
161 | } | |
162 | ||
621fd48c RS |
163 | /* if this is a repeated hw_params without hw_free, skip setting up widgets */ |
164 | if (!spcm->stream[substream->stream].list) { | |
66344c6d RS |
165 | ret = sof_pcm_setup_connected_widgets(sdev, rtd, spcm, params, &platform_params, |
166 | substream->stream); | |
621fd48c RS |
167 | if (ret < 0) |
168 | return ret; | |
169 | } | |
868bd00f | 170 | |
57e960f0 TI |
171 | /* create compressed page table for audio firmware */ |
172 | if (runtime->buffer_changed) { | |
1c91d77e | 173 | ret = create_page_table(component, substream, runtime->dma_area, |
868bd00f | 174 | runtime->dma_bytes); |
621fd48c | 175 | |
868bd00f LG |
176 | if (ret < 0) |
177 | return ret; | |
178 | } | |
179 | ||
148dd6a2 | 180 | if (pcm_ops && pcm_ops->hw_params) { |
621fd48c | 181 | ret = pcm_ops->hw_params(component, substream, params, &platform_params); |
5fcdbb2d RS |
182 | if (ret < 0) |
183 | return ret; | |
184 | } | |
185 | ||
04c80277 KV |
186 | spcm->prepared[substream->stream] = true; |
187 | ||
868bd00f LG |
188 | /* save pcm hw_params */ |
189 | memcpy(&spcm->params[substream->stream], params, sizeof(*params)); | |
190 | ||
621fd48c | 191 | return 0; |
868bd00f LG |
192 | } |
193 | ||
1c91d77e KM |
194 | static int sof_pcm_hw_free(struct snd_soc_component *component, |
195 | struct snd_pcm_substream *substream) | |
868bd00f | 196 | { |
1205300a | 197 | struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
868bd00f | 198 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
148dd6a2 | 199 | const struct sof_ipc_pcm_ops *pcm_ops = sof_ipc_get_ops(sdev, pcm); |
868bd00f | 200 | struct snd_sof_pcm *spcm; |
e66e52c5 | 201 | int ret, err = 0; |
868bd00f LG |
202 | |
203 | /* nothing to do for BE */ | |
204 | if (rtd->dai_link->no_pcm) | |
205 | return 0; | |
206 | ||
ee1e79b7 | 207 | spcm = snd_sof_find_spcm_dai(component, rtd); |
868bd00f LG |
208 | if (!spcm) |
209 | return -EINVAL; | |
210 | ||
ee1e79b7 RS |
211 | dev_dbg(component->dev, "pcm: free stream %d dir %d\n", |
212 | spcm->pcm.pcm_id, substream->stream); | |
868bd00f | 213 | |
0b639dcd | 214 | /* free PCM in the DSP */ |
148dd6a2 | 215 | if (pcm_ops && pcm_ops->hw_free && spcm->prepared[substream->stream]) { |
4123c24b RS |
216 | ret = pcm_ops->hw_free(component, substream); |
217 | if (ret < 0) | |
218 | err = ret; | |
868bd00f | 219 | |
4123c24b RS |
220 | spcm->prepared[substream->stream] = false; |
221 | } | |
e2803e61 | 222 | |
0b639dcd | 223 | /* stop DMA */ |
93146bc2 | 224 | ret = snd_sof_pcm_platform_hw_free(sdev, substream); |
e66e52c5 | 225 | if (ret < 0) { |
ee1e79b7 | 226 | dev_err(component->dev, "error: platform hw free failed\n"); |
e66e52c5 KV |
227 | err = ret; |
228 | } | |
93146bc2 | 229 | |
0b639dcd RS |
230 | /* free the DAPM widget list */ |
231 | ret = sof_widget_list_free(sdev, spcm, substream->stream); | |
232 | if (ret < 0) | |
233 | err = ret; | |
234 | ||
235 | cancel_work_sync(&spcm->stream[substream->stream].period_elapsed_work); | |
236 | ||
e66e52c5 | 237 | return err; |
868bd00f LG |
238 | } |
239 | ||
1c91d77e KM |
240 | static int sof_pcm_prepare(struct snd_soc_component *component, |
241 | struct snd_pcm_substream *substream) | |
868bd00f | 242 | { |
1205300a | 243 | struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
868bd00f LG |
244 | struct snd_sof_pcm *spcm; |
245 | int ret; | |
246 | ||
247 | /* nothing to do for BE */ | |
248 | if (rtd->dai_link->no_pcm) | |
249 | return 0; | |
250 | ||
ee1e79b7 | 251 | spcm = snd_sof_find_spcm_dai(component, rtd); |
868bd00f LG |
252 | if (!spcm) |
253 | return -EINVAL; | |
254 | ||
04c80277 | 255 | if (spcm->prepared[substream->stream]) |
868bd00f LG |
256 | return 0; |
257 | ||
ee1e79b7 RS |
258 | dev_dbg(component->dev, "pcm: prepare stream %d dir %d\n", |
259 | spcm->pcm.pcm_id, substream->stream); | |
868bd00f LG |
260 | |
261 | /* set hw_params */ | |
1c91d77e KM |
262 | ret = sof_pcm_hw_params(component, |
263 | substream, &spcm->params[substream->stream]); | |
868bd00f | 264 | if (ret < 0) { |
ee1e79b7 RS |
265 | dev_err(component->dev, |
266 | "error: set pcm hw_params after resume\n"); | |
868bd00f LG |
267 | return ret; |
268 | } | |
269 | ||
270 | return 0; | |
271 | } | |
272 | ||
273 | /* | |
274 | * FE dai link trigger actions are always executed in non-atomic context because | |
275 | * they involve IPC's. | |
276 | */ | |
1c91d77e KM |
277 | static int sof_pcm_trigger(struct snd_soc_component *component, |
278 | struct snd_pcm_substream *substream, int cmd) | |
868bd00f | 279 | { |
1205300a | 280 | struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
868bd00f | 281 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
148dd6a2 | 282 | const struct sof_ipc_pcm_ops *pcm_ops = sof_ipc_get_ops(sdev, pcm); |
868bd00f | 283 | struct snd_sof_pcm *spcm; |
04c80277 | 284 | bool reset_hw_params = false; |
0a1b0834 | 285 | bool ipc_first = false; |
beac3f4c | 286 | int ret = 0; |
868bd00f LG |
287 | |
288 | /* nothing to do for BE */ | |
289 | if (rtd->dai_link->no_pcm) | |
290 | return 0; | |
291 | ||
ee1e79b7 | 292 | spcm = snd_sof_find_spcm_dai(component, rtd); |
868bd00f LG |
293 | if (!spcm) |
294 | return -EINVAL; | |
295 | ||
ee1e79b7 | 296 | dev_dbg(component->dev, "pcm: trigger stream %d dir %d cmd %d\n", |
868bd00f LG |
297 | spcm->pcm.pcm_id, substream->stream, cmd); |
298 | ||
868bd00f LG |
299 | switch (cmd) { |
300 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
0a1b0834 | 301 | ipc_first = true; |
868bd00f LG |
302 | break; |
303 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
51ce3e6e RS |
304 | if (pcm_ops && pcm_ops->ipc_first_on_start) |
305 | ipc_first = true; | |
868bd00f | 306 | break; |
868bd00f | 307 | case SNDRV_PCM_TRIGGER_START: |
ac8c046f KJ |
308 | if (spcm->stream[substream->stream].suspend_ignored) { |
309 | /* | |
310 | * This case will be triggered when INFO_RESUME is | |
311 | * not supported, no need to re-start streams that | |
312 | * remained enabled in D0ix. | |
313 | */ | |
314 | spcm->stream[substream->stream].suspend_ignored = false; | |
315 | return 0; | |
316 | } | |
51ce3e6e RS |
317 | |
318 | if (pcm_ops && pcm_ops->ipc_first_on_start) | |
319 | ipc_first = true; | |
868bd00f LG |
320 | break; |
321 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
043ae13b | 322 | if (sdev->system_suspend_target == SOF_SUSPEND_S0IX && |
ac8c046f KJ |
323 | spcm->stream[substream->stream].d0i3_compatible) { |
324 | /* | |
325 | * trap the event, not sending trigger stop to | |
326 | * prevent the FW pipelines from being stopped, | |
327 | * and mark the flag to ignore the upcoming DAPM | |
328 | * PM events. | |
329 | */ | |
330 | spcm->stream[substream->stream].suspend_ignored = true; | |
331 | return 0; | |
332 | } | |
28d40e7a PU |
333 | |
334 | /* On suspend the DMA must be stopped in DSPless mode */ | |
335 | if (sdev->dspless_mode_selected) | |
336 | reset_hw_params = true; | |
337 | ||
df561f66 | 338 | fallthrough; |
868bd00f | 339 | case SNDRV_PCM_TRIGGER_STOP: |
0a1b0834 | 340 | ipc_first = true; |
7d6f623c RS |
341 | if (pcm_ops && pcm_ops->reset_hw_params_during_stop) |
342 | reset_hw_params = true; | |
868bd00f LG |
343 | break; |
344 | default: | |
beac3f4c | 345 | dev_err(component->dev, "Unhandled trigger cmd %d\n", cmd); |
868bd00f LG |
346 | return -EINVAL; |
347 | } | |
348 | ||
0a1b0834 PX |
349 | if (!ipc_first) |
350 | snd_sof_pcm_platform_trigger(sdev, substream, cmd); | |
868bd00f | 351 | |
148dd6a2 | 352 | if (pcm_ops && pcm_ops->trigger) |
beac3f4c | 353 | ret = pcm_ops->trigger(component, substream, cmd); |
868bd00f | 354 | |
51ce3e6e RS |
355 | switch (cmd) { |
356 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
357 | case SNDRV_PCM_TRIGGER_START: | |
358 | /* invoke platform trigger to start DMA only if pcm_ops is successful */ | |
359 | if (ipc_first && !ret) | |
360 | snd_sof_pcm_platform_trigger(sdev, substream, cmd); | |
361 | break; | |
362 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
363 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
364 | case SNDRV_PCM_TRIGGER_STOP: | |
365 | /* invoke platform trigger to stop DMA even if pcm_ops failed */ | |
0a1b0834 | 366 | snd_sof_pcm_platform_trigger(sdev, substream, cmd); |
51ce3e6e RS |
367 | break; |
368 | default: | |
369 | break; | |
370 | } | |
0a1b0834 PX |
371 | |
372 | /* free PCM if reset_hw_params is set and the STOP IPC is successful */ | |
9e116f5a | 373 | if (!ret && reset_hw_params) |
82b18242 | 374 | ret = sof_pcm_stream_free(sdev, substream, spcm, substream->stream, false); |
868bd00f | 375 | |
a49b6871 | 376 | return ret; |
868bd00f LG |
377 | } |
378 | ||
1c91d77e KM |
379 | static snd_pcm_uframes_t sof_pcm_pointer(struct snd_soc_component *component, |
380 | struct snd_pcm_substream *substream) | |
868bd00f | 381 | { |
1205300a | 382 | struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
868bd00f LG |
383 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
384 | struct snd_sof_pcm *spcm; | |
385 | snd_pcm_uframes_t host, dai; | |
386 | ||
387 | /* nothing to do for BE */ | |
388 | if (rtd->dai_link->no_pcm) | |
389 | return 0; | |
390 | ||
391 | /* use dsp ops pointer callback directly if set */ | |
392 | if (sof_ops(sdev)->pcm_pointer) | |
393 | return sof_ops(sdev)->pcm_pointer(sdev, substream); | |
394 | ||
ee1e79b7 | 395 | spcm = snd_sof_find_spcm_dai(component, rtd); |
868bd00f LG |
396 | if (!spcm) |
397 | return -EINVAL; | |
398 | ||
399 | /* read position from DSP */ | |
400 | host = bytes_to_frames(substream->runtime, | |
401 | spcm->stream[substream->stream].posn.host_posn); | |
402 | dai = bytes_to_frames(substream->runtime, | |
403 | spcm->stream[substream->stream].posn.dai_posn); | |
404 | ||
bcd2cc35 | 405 | trace_sof_pcm_pointer_position(sdev, spcm, substream, host, dai); |
868bd00f LG |
406 | |
407 | return host; | |
408 | } | |
409 | ||
1c91d77e KM |
410 | static int sof_pcm_open(struct snd_soc_component *component, |
411 | struct snd_pcm_substream *substream) | |
868bd00f | 412 | { |
1205300a | 413 | struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
868bd00f | 414 | struct snd_pcm_runtime *runtime = substream->runtime; |
868bd00f | 415 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
856601e5 | 416 | struct snd_sof_dsp_ops *ops = sof_ops(sdev); |
868bd00f LG |
417 | struct snd_sof_pcm *spcm; |
418 | struct snd_soc_tplg_stream_caps *caps; | |
419 | int ret; | |
868bd00f LG |
420 | |
421 | /* nothing to do for BE */ | |
422 | if (rtd->dai_link->no_pcm) | |
423 | return 0; | |
424 | ||
ee1e79b7 | 425 | spcm = snd_sof_find_spcm_dai(component, rtd); |
868bd00f LG |
426 | if (!spcm) |
427 | return -EINVAL; | |
428 | ||
ee1e79b7 RS |
429 | dev_dbg(component->dev, "pcm: open stream %d dir %d\n", |
430 | spcm->pcm.pcm_id, substream->stream); | |
868bd00f | 431 | |
868bd00f LG |
432 | |
433 | caps = &spcm->pcm.caps[substream->stream]; | |
434 | ||
868bd00f | 435 | /* set runtime config */ |
27e322fa PLB |
436 | runtime->hw.info = ops->hw_info; /* platform-specific */ |
437 | ||
9983ac49 | 438 | /* set any runtime constraints based on topology */ |
868bd00f LG |
439 | runtime->hw.formats = le64_to_cpu(caps->formats); |
440 | runtime->hw.period_bytes_min = le32_to_cpu(caps->period_size_min); | |
441 | runtime->hw.period_bytes_max = le32_to_cpu(caps->period_size_max); | |
442 | runtime->hw.periods_min = le32_to_cpu(caps->periods_min); | |
443 | runtime->hw.periods_max = le32_to_cpu(caps->periods_max); | |
444 | ||
445 | /* | |
446 | * caps->buffer_size_min is not used since the | |
447 | * snd_pcm_hardware structure only defines buffer_bytes_max | |
448 | */ | |
449 | runtime->hw.buffer_bytes_max = le32_to_cpu(caps->buffer_size_max); | |
450 | ||
ee1e79b7 | 451 | dev_dbg(component->dev, "period min %zd max %zd bytes\n", |
868bd00f LG |
452 | runtime->hw.period_bytes_min, |
453 | runtime->hw.period_bytes_max); | |
ee1e79b7 | 454 | dev_dbg(component->dev, "period count %d max %d\n", |
868bd00f LG |
455 | runtime->hw.periods_min, |
456 | runtime->hw.periods_max); | |
ee1e79b7 | 457 | dev_dbg(component->dev, "buffer max %zd bytes\n", |
868bd00f LG |
458 | runtime->hw.buffer_bytes_max); |
459 | ||
460 | /* set wait time - TODO: come from topology */ | |
461 | substream->wait_time = 500; | |
462 | ||
463 | spcm->stream[substream->stream].posn.host_posn = 0; | |
464 | spcm->stream[substream->stream].posn.dai_posn = 0; | |
465 | spcm->stream[substream->stream].substream = substream; | |
04c80277 | 466 | spcm->prepared[substream->stream] = false; |
868bd00f LG |
467 | |
468 | ret = snd_sof_pcm_platform_open(sdev, substream); | |
14a2212d | 469 | if (ret < 0) |
ee1e79b7 | 470 | dev_err(component->dev, "error: pcm open failed %d\n", ret); |
868bd00f LG |
471 | |
472 | return ret; | |
473 | } | |
474 | ||
1c91d77e KM |
475 | static int sof_pcm_close(struct snd_soc_component *component, |
476 | struct snd_pcm_substream *substream) | |
868bd00f | 477 | { |
1205300a | 478 | struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
868bd00f LG |
479 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
480 | struct snd_sof_pcm *spcm; | |
481 | int err; | |
482 | ||
483 | /* nothing to do for BE */ | |
484 | if (rtd->dai_link->no_pcm) | |
485 | return 0; | |
486 | ||
ee1e79b7 | 487 | spcm = snd_sof_find_spcm_dai(component, rtd); |
868bd00f LG |
488 | if (!spcm) |
489 | return -EINVAL; | |
490 | ||
ee1e79b7 RS |
491 | dev_dbg(component->dev, "pcm: close stream %d dir %d\n", |
492 | spcm->pcm.pcm_id, substream->stream); | |
868bd00f LG |
493 | |
494 | err = snd_sof_pcm_platform_close(sdev, substream); | |
495 | if (err < 0) { | |
ee1e79b7 | 496 | dev_err(component->dev, "error: pcm close failed %d\n", |
868bd00f LG |
497 | err); |
498 | /* | |
499 | * keep going, no point in preventing the close | |
500 | * from happening | |
501 | */ | |
502 | } | |
503 | ||
868bd00f LG |
504 | return 0; |
505 | } | |
506 | ||
868bd00f LG |
507 | /* |
508 | * Pre-allocate playback/capture audio buffer pages. | |
509 | * no need to explicitly release memory preallocated by sof_pcm_new in pcm_free | |
510 | * snd_pcm_lib_preallocate_free_for_all() is called by the core. | |
511 | */ | |
1c91d77e KM |
512 | static int sof_pcm_new(struct snd_soc_component *component, |
513 | struct snd_soc_pcm_runtime *rtd) | |
868bd00f | 514 | { |
868bd00f LG |
515 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
516 | struct snd_sof_pcm *spcm; | |
517 | struct snd_pcm *pcm = rtd->pcm; | |
518 | struct snd_soc_tplg_stream_caps *caps; | |
519 | int stream = SNDRV_PCM_STREAM_PLAYBACK; | |
520 | ||
521 | /* find SOF PCM for this RTD */ | |
ee1e79b7 | 522 | spcm = snd_sof_find_spcm_dai(component, rtd); |
868bd00f | 523 | if (!spcm) { |
ee1e79b7 | 524 | dev_warn(component->dev, "warn: can't find PCM with DAI ID %d\n", |
868bd00f LG |
525 | rtd->dai_link->id); |
526 | return 0; | |
527 | } | |
528 | ||
ee1e79b7 | 529 | dev_dbg(component->dev, "creating new PCM %s\n", spcm->pcm.pcm_name); |
868bd00f LG |
530 | |
531 | /* do we need to pre-allocate playback audio buffer pages */ | |
532 | if (!spcm->pcm.playback) | |
533 | goto capture; | |
534 | ||
535 | caps = &spcm->pcm.caps[stream]; | |
536 | ||
537 | /* pre-allocate playback audio buffer pages */ | |
ee1e79b7 RS |
538 | dev_dbg(component->dev, |
539 | "spcm: allocate %s playback DMA buffer size 0x%x max 0x%x\n", | |
868bd00f LG |
540 | caps->name, caps->buffer_size_min, caps->buffer_size_max); |
541 | ||
4f7f9564 GL |
542 | if (!pcm->streams[stream].substream) { |
543 | dev_err(component->dev, "error: NULL playback substream!\n"); | |
544 | return -EINVAL; | |
545 | } | |
546 | ||
57e960f0 TI |
547 | snd_pcm_set_managed_buffer(pcm->streams[stream].substream, |
548 | SNDRV_DMA_TYPE_DEV_SG, sdev->dev, | |
e582f483 | 549 | 0, le32_to_cpu(caps->buffer_size_max)); |
868bd00f LG |
550 | capture: |
551 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
552 | ||
553 | /* do we need to pre-allocate capture audio buffer pages */ | |
554 | if (!spcm->pcm.capture) | |
555 | return 0; | |
556 | ||
557 | caps = &spcm->pcm.caps[stream]; | |
558 | ||
559 | /* pre-allocate capture audio buffer pages */ | |
ee1e79b7 RS |
560 | dev_dbg(component->dev, |
561 | "spcm: allocate %s capture DMA buffer size 0x%x max 0x%x\n", | |
868bd00f LG |
562 | caps->name, caps->buffer_size_min, caps->buffer_size_max); |
563 | ||
4f7f9564 GL |
564 | if (!pcm->streams[stream].substream) { |
565 | dev_err(component->dev, "error: NULL capture substream!\n"); | |
566 | return -EINVAL; | |
567 | } | |
568 | ||
57e960f0 TI |
569 | snd_pcm_set_managed_buffer(pcm->streams[stream].substream, |
570 | SNDRV_DMA_TYPE_DEV_SG, sdev->dev, | |
e582f483 | 571 | 0, le32_to_cpu(caps->buffer_size_max)); |
868bd00f LG |
572 | |
573 | return 0; | |
574 | } | |
575 | ||
576 | /* fixup the BE DAI link to match any values from topology */ | |
f805e7e0 | 577 | int sof_pcm_dai_link_fixup(struct snd_soc_pcm_runtime *rtd, struct snd_pcm_hw_params *params) |
868bd00f LG |
578 | { |
579 | struct snd_interval *rate = hw_param_interval(params, | |
580 | SNDRV_PCM_HW_PARAM_RATE); | |
581 | struct snd_interval *channels = hw_param_interval(params, | |
582 | SNDRV_PCM_HW_PARAM_CHANNELS); | |
583 | struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); | |
584 | struct snd_soc_component *component = | |
ee1e79b7 | 585 | snd_soc_rtdcom_lookup(rtd, SOF_AUDIO_PCM_DRV_NAME); |
868bd00f | 586 | struct snd_sof_dai *dai = |
ee1e79b7 | 587 | snd_sof_find_dai(component, (char *)rtd->dai_link->name); |
c943a586 | 588 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
148dd6a2 | 589 | const struct sof_ipc_pcm_ops *pcm_ops = sof_ipc_get_ops(sdev, pcm); |
868bd00f LG |
590 | |
591 | /* no topology exists for this BE, try a common configuration */ | |
592 | if (!dai) { | |
ee1e79b7 RS |
593 | dev_warn(component->dev, |
594 | "warning: no topology found for BE DAI %s config\n", | |
868bd00f LG |
595 | rtd->dai_link->name); |
596 | ||
597 | /* set 48k, stereo, 16bits by default */ | |
598 | rate->min = 48000; | |
599 | rate->max = 48000; | |
600 | ||
601 | channels->min = 2; | |
602 | channels->max = 2; | |
603 | ||
604 | snd_mask_none(fmt); | |
605 | snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE); | |
606 | ||
607 | return 0; | |
608 | } | |
609 | ||
148dd6a2 | 610 | if (pcm_ops && pcm_ops->dai_link_fixup) |
b243b437 | 611 | return pcm_ops->dai_link_fixup(rtd, params); |
868bd00f LG |
612 | |
613 | return 0; | |
614 | } | |
f3f3af17 | 615 | EXPORT_SYMBOL(sof_pcm_dai_link_fixup); |
868bd00f LG |
616 | |
617 | static int sof_pcm_probe(struct snd_soc_component *component) | |
618 | { | |
619 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); | |
620 | struct snd_sof_pdata *plat_data = sdev->pdata; | |
621 | const char *tplg_filename; | |
622 | int ret; | |
623 | ||
4ea3bfd1 PLB |
624 | /* |
625 | * make sure the device is pm_runtime_active before loading the | |
626 | * topology and initiating IPC or bus transactions | |
627 | */ | |
628 | ret = pm_runtime_resume_and_get(component->dev); | |
629 | if (ret < 0 && ret != -EACCES) | |
630 | return ret; | |
631 | ||
868bd00f LG |
632 | /* load the default topology */ |
633 | sdev->component = component; | |
634 | ||
635 | tplg_filename = devm_kasprintf(sdev->dev, GFP_KERNEL, | |
636 | "%s/%s", | |
637 | plat_data->tplg_filename_prefix, | |
638 | plat_data->tplg_filename); | |
639 | if (!tplg_filename) | |
640 | return -ENOMEM; | |
641 | ||
ee1e79b7 | 642 | ret = snd_sof_load_topology(component, tplg_filename); |
868bd00f | 643 | if (ret < 0) { |
ee1e79b7 | 644 | dev_err(component->dev, "error: failed to load DSP topology %d\n", |
868bd00f LG |
645 | ret); |
646 | return ret; | |
647 | } | |
648 | ||
4ea3bfd1 PLB |
649 | pm_runtime_mark_last_busy(component->dev); |
650 | pm_runtime_put_autosuspend(component->dev); | |
651 | ||
868bd00f LG |
652 | return ret; |
653 | } | |
654 | ||
655 | static void sof_pcm_remove(struct snd_soc_component *component) | |
656 | { | |
657 | /* remove topology */ | |
a5b8f71c | 658 | snd_soc_tplg_component_remove(component); |
868bd00f LG |
659 | } |
660 | ||
4a39ea3f RS |
661 | static int sof_pcm_ack(struct snd_soc_component *component, |
662 | struct snd_pcm_substream *substream) | |
663 | { | |
664 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); | |
665 | ||
666 | return snd_sof_pcm_platform_ack(sdev, substream); | |
667 | } | |
668 | ||
27c2100b RW |
669 | static snd_pcm_sframes_t sof_pcm_delay(struct snd_soc_component *component, |
670 | struct snd_pcm_substream *substream) | |
671 | { | |
672 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); | |
673 | const struct sof_ipc_pcm_ops *pcm_ops = sof_ipc_get_ops(sdev, pcm); | |
674 | ||
675 | if (pcm_ops && pcm_ops->delay) | |
676 | return pcm_ops->delay(component, substream); | |
677 | ||
678 | return 0; | |
679 | } | |
680 | ||
868bd00f LG |
681 | void snd_sof_new_platform_drv(struct snd_sof_dev *sdev) |
682 | { | |
683 | struct snd_soc_component_driver *pd = &sdev->plat_drv; | |
684 | struct snd_sof_pdata *plat_data = sdev->pdata; | |
685 | const char *drv_name; | |
686 | ||
6ace85b9 CL |
687 | if (plat_data->machine) |
688 | drv_name = plat_data->machine->drv_name; | |
689 | else if (plat_data->of_machine) | |
690 | drv_name = plat_data->of_machine->drv_name; | |
691 | else | |
692 | drv_name = NULL; | |
868bd00f LG |
693 | |
694 | pd->name = "sof-audio-component"; | |
695 | pd->probe = sof_pcm_probe; | |
696 | pd->remove = sof_pcm_remove; | |
1c91d77e KM |
697 | pd->open = sof_pcm_open; |
698 | pd->close = sof_pcm_close; | |
1c91d77e KM |
699 | pd->hw_params = sof_pcm_hw_params; |
700 | pd->prepare = sof_pcm_prepare; | |
701 | pd->hw_free = sof_pcm_hw_free; | |
702 | pd->trigger = sof_pcm_trigger; | |
703 | pd->pointer = sof_pcm_pointer; | |
4a39ea3f | 704 | pd->ack = sof_pcm_ack; |
27c2100b | 705 | pd->delay = sof_pcm_delay; |
1c91d77e | 706 | |
76cdd90b DB |
707 | #if IS_ENABLED(CONFIG_SND_SOC_SOF_COMPRESS) |
708 | pd->compress_ops = &sof_compressed_ops; | |
709 | #endif | |
710 | ||
1c91d77e | 711 | pd->pcm_construct = sof_pcm_new; |
868bd00f | 712 | pd->ignore_machine = drv_name; |
868bd00f LG |
713 | pd->be_pcm_base = SOF_BE_PCM_BASE; |
714 | pd->use_dai_pcm_id = true; | |
715 | pd->topology_name_prefix = "sof"; | |
716 | ||
717 | /* increment module refcount when a pcm is opened */ | |
718 | pd->module_get_upon_open = 1; | |
a718ba30 CK |
719 | |
720 | pd->legacy_dai_naming = 1; | |
28d40e7a PU |
721 | |
722 | /* | |
723 | * The fixup is only needed when the DSP is in use as with the DSPless | |
724 | * mode we are directly using the audio interface | |
725 | */ | |
726 | if (!sdev->dspless_mode_selected) | |
727 | pd->be_hw_params_fixup = sof_pcm_dai_link_fixup; | |
868bd00f | 728 | } |