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868bd00f LG |
1 | // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) |
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> | |
16 | #include "sof-priv.h" | |
ee1e79b7 | 17 | #include "sof-audio.h" |
868bd00f LG |
18 | #include "ops.h" |
19 | ||
868bd00f | 20 | /* Create DMA buffer page table for DSP */ |
1c91d77e KM |
21 | static int create_page_table(struct snd_soc_component *component, |
22 | struct snd_pcm_substream *substream, | |
868bd00f LG |
23 | unsigned char *dma_area, size_t size) |
24 | { | |
25 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
868bd00f LG |
26 | struct snd_sof_pcm *spcm; |
27 | struct snd_dma_buffer *dmab = snd_pcm_get_dma_buf(substream); | |
28 | int stream = substream->stream; | |
29 | ||
ee1e79b7 | 30 | spcm = snd_sof_find_spcm_dai(component, rtd); |
868bd00f LG |
31 | if (!spcm) |
32 | return -EINVAL; | |
33 | ||
ee1e79b7 | 34 | return snd_sof_create_page_table(component->dev, dmab, |
868bd00f LG |
35 | spcm->stream[stream].page_table.area, size); |
36 | } | |
37 | ||
38 | static int sof_pcm_dsp_params(struct snd_sof_pcm *spcm, struct snd_pcm_substream *substream, | |
39 | const struct sof_ipc_pcm_params_reply *reply) | |
40 | { | |
ee1e79b7 RS |
41 | struct snd_soc_component *scomp = spcm->scomp; |
42 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp); | |
43 | ||
868bd00f LG |
44 | /* validate offset */ |
45 | int ret = snd_sof_ipc_pcm_params(sdev, substream, reply); | |
46 | ||
47 | if (ret < 0) | |
ee1e79b7 | 48 | dev_err(scomp->dev, "error: got wrong reply for PCM %d\n", |
868bd00f LG |
49 | spcm->pcm.pcm_id); |
50 | ||
51 | return ret; | |
52 | } | |
53 | ||
e2803e61 KJ |
54 | /* |
55 | * sof pcm period elapse work | |
56 | */ | |
57 | static void sof_pcm_period_elapsed_work(struct work_struct *work) | |
58 | { | |
59 | struct snd_sof_pcm_stream *sps = | |
60 | container_of(work, struct snd_sof_pcm_stream, | |
61 | period_elapsed_work); | |
62 | ||
63 | snd_pcm_period_elapsed(sps->substream); | |
64 | } | |
65 | ||
66 | /* | |
67 | * sof pcm period elapse, this could be called at irq thread context. | |
68 | */ | |
69 | void snd_sof_pcm_period_elapsed(struct snd_pcm_substream *substream) | |
70 | { | |
71 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
72 | struct snd_soc_component *component = | |
ee1e79b7 | 73 | snd_soc_rtdcom_lookup(rtd, SOF_AUDIO_PCM_DRV_NAME); |
e2803e61 KJ |
74 | struct snd_sof_pcm *spcm; |
75 | ||
ee1e79b7 | 76 | spcm = snd_sof_find_spcm_dai(component, rtd); |
e2803e61 | 77 | if (!spcm) { |
ee1e79b7 | 78 | dev_err(component->dev, |
e2803e61 KJ |
79 | "error: period elapsed for unknown stream!\n"); |
80 | return; | |
81 | } | |
82 | ||
83 | /* | |
84 | * snd_pcm_period_elapsed() can be called in interrupt context | |
85 | * before IRQ_HANDLED is returned. Inside snd_pcm_period_elapsed(), | |
86 | * when the PCM is done draining or xrun happened, a STOP IPC will | |
87 | * then be sent and this IPC will hit IPC timeout. | |
88 | * To avoid sending IPC before the previous IPC is handled, we | |
89 | * schedule delayed work here to call the snd_pcm_period_elapsed(). | |
90 | */ | |
91 | schedule_work(&spcm->stream[substream->stream].period_elapsed_work); | |
92 | } | |
93 | EXPORT_SYMBOL(snd_sof_pcm_period_elapsed); | |
94 | ||
cfe8191b KV |
95 | static int sof_pcm_dsp_pcm_free(struct snd_pcm_substream *substream, |
96 | struct snd_sof_dev *sdev, | |
97 | struct snd_sof_pcm *spcm) | |
98 | { | |
99 | struct sof_ipc_stream stream; | |
100 | struct sof_ipc_reply reply; | |
101 | int ret; | |
102 | ||
103 | stream.hdr.size = sizeof(stream); | |
104 | stream.hdr.cmd = SOF_IPC_GLB_STREAM_MSG | SOF_IPC_STREAM_PCM_FREE; | |
105 | stream.comp_id = spcm->stream[substream->stream].comp_id; | |
106 | ||
107 | /* send IPC to the DSP */ | |
108 | ret = sof_ipc_tx_message(sdev->ipc, stream.hdr.cmd, &stream, | |
109 | sizeof(stream), &reply, sizeof(reply)); | |
110 | if (!ret) | |
111 | spcm->prepared[substream->stream] = false; | |
112 | ||
113 | return ret; | |
114 | } | |
115 | ||
1c91d77e KM |
116 | static int sof_pcm_hw_params(struct snd_soc_component *component, |
117 | struct snd_pcm_substream *substream, | |
868bd00f LG |
118 | struct snd_pcm_hw_params *params) |
119 | { | |
120 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
121 | struct snd_pcm_runtime *runtime = substream->runtime; | |
868bd00f LG |
122 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
123 | struct snd_sof_pcm *spcm; | |
124 | struct sof_ipc_pcm_params pcm; | |
125 | struct sof_ipc_pcm_params_reply ipc_params_reply; | |
126 | int ret; | |
127 | ||
128 | /* nothing to do for BE */ | |
129 | if (rtd->dai_link->no_pcm) | |
130 | return 0; | |
131 | ||
ee1e79b7 | 132 | spcm = snd_sof_find_spcm_dai(component, rtd); |
868bd00f LG |
133 | if (!spcm) |
134 | return -EINVAL; | |
135 | ||
cfe8191b KV |
136 | /* |
137 | * Handle repeated calls to hw_params() without free_pcm() in | |
138 | * between. At least ALSA OSS emulation depends on this. | |
139 | */ | |
140 | if (spcm->prepared[substream->stream]) { | |
141 | ret = sof_pcm_dsp_pcm_free(substream, sdev, spcm); | |
142 | if (ret < 0) | |
143 | return ret; | |
144 | } | |
145 | ||
ee1e79b7 | 146 | dev_dbg(component->dev, "pcm: hw params stream %d dir %d\n", |
868bd00f LG |
147 | spcm->pcm.pcm_id, substream->stream); |
148 | ||
149 | memset(&pcm, 0, sizeof(pcm)); | |
150 | ||
57e960f0 TI |
151 | /* create compressed page table for audio firmware */ |
152 | if (runtime->buffer_changed) { | |
1c91d77e | 153 | ret = create_page_table(component, substream, runtime->dma_area, |
868bd00f LG |
154 | runtime->dma_bytes); |
155 | if (ret < 0) | |
156 | return ret; | |
157 | } | |
158 | ||
159 | /* number of pages should be rounded up */ | |
160 | pcm.params.buffer.pages = PFN_UP(runtime->dma_bytes); | |
161 | ||
162 | /* set IPC PCM parameters */ | |
163 | pcm.hdr.size = sizeof(pcm); | |
164 | pcm.hdr.cmd = SOF_IPC_GLB_STREAM_MSG | SOF_IPC_STREAM_PCM_PARAMS; | |
165 | pcm.comp_id = spcm->stream[substream->stream].comp_id; | |
166 | pcm.params.hdr.size = sizeof(pcm.params); | |
167 | pcm.params.buffer.phy_addr = | |
168 | spcm->stream[substream->stream].page_table.addr; | |
169 | pcm.params.buffer.size = runtime->dma_bytes; | |
170 | pcm.params.direction = substream->stream; | |
171 | pcm.params.sample_valid_bytes = params_width(params) >> 3; | |
172 | pcm.params.buffer_fmt = SOF_IPC_BUFFER_INTERLEAVED; | |
173 | pcm.params.rate = params_rate(params); | |
174 | pcm.params.channels = params_channels(params); | |
175 | pcm.params.host_period_bytes = params_period_bytes(params); | |
176 | ||
177 | /* container size */ | |
178 | ret = snd_pcm_format_physical_width(params_format(params)); | |
179 | if (ret < 0) | |
180 | return ret; | |
181 | pcm.params.sample_container_bytes = ret >> 3; | |
182 | ||
183 | /* format */ | |
184 | switch (params_format(params)) { | |
185 | case SNDRV_PCM_FORMAT_S16: | |
186 | pcm.params.frame_fmt = SOF_IPC_FRAME_S16_LE; | |
187 | break; | |
188 | case SNDRV_PCM_FORMAT_S24: | |
189 | pcm.params.frame_fmt = SOF_IPC_FRAME_S24_4LE; | |
190 | break; | |
191 | case SNDRV_PCM_FORMAT_S32: | |
192 | pcm.params.frame_fmt = SOF_IPC_FRAME_S32_LE; | |
193 | break; | |
194 | case SNDRV_PCM_FORMAT_FLOAT: | |
195 | pcm.params.frame_fmt = SOF_IPC_FRAME_FLOAT; | |
196 | break; | |
197 | default: | |
198 | return -EINVAL; | |
199 | } | |
200 | ||
201 | /* firmware already configured host stream */ | |
202 | ret = snd_sof_pcm_platform_hw_params(sdev, | |
203 | substream, | |
204 | params, | |
205 | &pcm.params); | |
206 | if (ret < 0) { | |
ee1e79b7 | 207 | dev_err(component->dev, "error: platform hw params failed\n"); |
868bd00f LG |
208 | return ret; |
209 | } | |
210 | ||
ee1e79b7 | 211 | dev_dbg(component->dev, "stream_tag %d", pcm.params.stream_tag); |
868bd00f LG |
212 | |
213 | /* send IPC to the DSP */ | |
214 | ret = sof_ipc_tx_message(sdev->ipc, pcm.hdr.cmd, &pcm, sizeof(pcm), | |
215 | &ipc_params_reply, sizeof(ipc_params_reply)); | |
216 | if (ret < 0) { | |
ee1e79b7 | 217 | dev_err(component->dev, "error: hw params ipc failed for stream %d\n", |
868bd00f LG |
218 | pcm.params.stream_tag); |
219 | return ret; | |
220 | } | |
221 | ||
222 | ret = sof_pcm_dsp_params(spcm, substream, &ipc_params_reply); | |
223 | if (ret < 0) | |
224 | return ret; | |
225 | ||
04c80277 KV |
226 | spcm->prepared[substream->stream] = true; |
227 | ||
868bd00f LG |
228 | /* save pcm hw_params */ |
229 | memcpy(&spcm->params[substream->stream], params, sizeof(*params)); | |
230 | ||
231 | return ret; | |
232 | } | |
233 | ||
1c91d77e KM |
234 | static int sof_pcm_hw_free(struct snd_soc_component *component, |
235 | struct snd_pcm_substream *substream) | |
868bd00f LG |
236 | { |
237 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
868bd00f LG |
238 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
239 | struct snd_sof_pcm *spcm; | |
e66e52c5 | 240 | int ret, err = 0; |
868bd00f LG |
241 | |
242 | /* nothing to do for BE */ | |
243 | if (rtd->dai_link->no_pcm) | |
244 | return 0; | |
245 | ||
ee1e79b7 | 246 | spcm = snd_sof_find_spcm_dai(component, rtd); |
868bd00f LG |
247 | if (!spcm) |
248 | return -EINVAL; | |
249 | ||
ee1e79b7 RS |
250 | dev_dbg(component->dev, "pcm: free stream %d dir %d\n", |
251 | spcm->pcm.pcm_id, substream->stream); | |
868bd00f | 252 | |
e66e52c5 KV |
253 | if (spcm->prepared[substream->stream]) { |
254 | ret = sof_pcm_dsp_pcm_free(substream, sdev, spcm); | |
255 | if (ret < 0) | |
256 | err = ret; | |
257 | } | |
868bd00f | 258 | |
e2803e61 KJ |
259 | cancel_work_sync(&spcm->stream[substream->stream].period_elapsed_work); |
260 | ||
93146bc2 | 261 | ret = snd_sof_pcm_platform_hw_free(sdev, substream); |
e66e52c5 | 262 | if (ret < 0) { |
ee1e79b7 | 263 | dev_err(component->dev, "error: platform hw free failed\n"); |
e66e52c5 KV |
264 | err = ret; |
265 | } | |
93146bc2 | 266 | |
e66e52c5 | 267 | return err; |
868bd00f LG |
268 | } |
269 | ||
1c91d77e KM |
270 | static int sof_pcm_prepare(struct snd_soc_component *component, |
271 | struct snd_pcm_substream *substream) | |
868bd00f LG |
272 | { |
273 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
868bd00f LG |
274 | struct snd_sof_pcm *spcm; |
275 | int ret; | |
276 | ||
277 | /* nothing to do for BE */ | |
278 | if (rtd->dai_link->no_pcm) | |
279 | return 0; | |
280 | ||
ee1e79b7 | 281 | spcm = snd_sof_find_spcm_dai(component, rtd); |
868bd00f LG |
282 | if (!spcm) |
283 | return -EINVAL; | |
284 | ||
04c80277 | 285 | if (spcm->prepared[substream->stream]) |
868bd00f LG |
286 | return 0; |
287 | ||
ee1e79b7 RS |
288 | dev_dbg(component->dev, "pcm: prepare stream %d dir %d\n", |
289 | spcm->pcm.pcm_id, substream->stream); | |
868bd00f LG |
290 | |
291 | /* set hw_params */ | |
1c91d77e KM |
292 | ret = sof_pcm_hw_params(component, |
293 | substream, &spcm->params[substream->stream]); | |
868bd00f | 294 | if (ret < 0) { |
ee1e79b7 RS |
295 | dev_err(component->dev, |
296 | "error: set pcm hw_params after resume\n"); | |
868bd00f LG |
297 | return ret; |
298 | } | |
299 | ||
300 | return 0; | |
301 | } | |
302 | ||
303 | /* | |
304 | * FE dai link trigger actions are always executed in non-atomic context because | |
305 | * they involve IPC's. | |
306 | */ | |
1c91d77e KM |
307 | static int sof_pcm_trigger(struct snd_soc_component *component, |
308 | struct snd_pcm_substream *substream, int cmd) | |
868bd00f LG |
309 | { |
310 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
868bd00f LG |
311 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
312 | struct snd_sof_pcm *spcm; | |
313 | struct sof_ipc_stream stream; | |
314 | struct sof_ipc_reply reply; | |
04c80277 | 315 | bool reset_hw_params = false; |
0a1b0834 | 316 | bool ipc_first = false; |
868bd00f LG |
317 | int ret; |
318 | ||
319 | /* nothing to do for BE */ | |
320 | if (rtd->dai_link->no_pcm) | |
321 | return 0; | |
322 | ||
ee1e79b7 | 323 | spcm = snd_sof_find_spcm_dai(component, rtd); |
868bd00f LG |
324 | if (!spcm) |
325 | return -EINVAL; | |
326 | ||
ee1e79b7 | 327 | dev_dbg(component->dev, "pcm: trigger stream %d dir %d cmd %d\n", |
868bd00f LG |
328 | spcm->pcm.pcm_id, substream->stream, cmd); |
329 | ||
330 | stream.hdr.size = sizeof(stream); | |
331 | stream.hdr.cmd = SOF_IPC_GLB_STREAM_MSG; | |
332 | stream.comp_id = spcm->stream[substream->stream].comp_id; | |
333 | ||
334 | switch (cmd) { | |
335 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
336 | stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_PAUSE; | |
0a1b0834 | 337 | ipc_first = true; |
868bd00f LG |
338 | break; |
339 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
340 | stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_RELEASE; | |
341 | break; | |
342 | case SNDRV_PCM_TRIGGER_RESUME: | |
ac8c046f KJ |
343 | if (spcm->stream[substream->stream].suspend_ignored) { |
344 | /* | |
345 | * this case will be triggered when INFO_RESUME is | |
346 | * supported, no need to resume streams that remained | |
347 | * enabled in D0ix. | |
348 | */ | |
349 | spcm->stream[substream->stream].suspend_ignored = false; | |
350 | return 0; | |
351 | } | |
352 | ||
868bd00f | 353 | /* set up hw_params */ |
1c91d77e | 354 | ret = sof_pcm_prepare(component, substream); |
868bd00f | 355 | if (ret < 0) { |
ee1e79b7 | 356 | dev_err(component->dev, |
868bd00f LG |
357 | "error: failed to set up hw_params upon resume\n"); |
358 | return ret; | |
359 | } | |
360 | ||
361 | /* fallthrough */ | |
362 | case SNDRV_PCM_TRIGGER_START: | |
ac8c046f KJ |
363 | if (spcm->stream[substream->stream].suspend_ignored) { |
364 | /* | |
365 | * This case will be triggered when INFO_RESUME is | |
366 | * not supported, no need to re-start streams that | |
367 | * remained enabled in D0ix. | |
368 | */ | |
369 | spcm->stream[substream->stream].suspend_ignored = false; | |
370 | return 0; | |
371 | } | |
868bd00f LG |
372 | stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_START; |
373 | break; | |
374 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
ac8c046f KJ |
375 | if (sdev->s0_suspend && |
376 | spcm->stream[substream->stream].d0i3_compatible) { | |
377 | /* | |
378 | * trap the event, not sending trigger stop to | |
379 | * prevent the FW pipelines from being stopped, | |
380 | * and mark the flag to ignore the upcoming DAPM | |
381 | * PM events. | |
382 | */ | |
383 | spcm->stream[substream->stream].suspend_ignored = true; | |
384 | return 0; | |
385 | } | |
386 | /* fallthrough */ | |
868bd00f LG |
387 | case SNDRV_PCM_TRIGGER_STOP: |
388 | stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_STOP; | |
0a1b0834 | 389 | ipc_first = true; |
04c80277 | 390 | reset_hw_params = true; |
868bd00f LG |
391 | break; |
392 | default: | |
ee1e79b7 RS |
393 | dev_err(component->dev, "error: unhandled trigger cmd %d\n", |
394 | cmd); | |
868bd00f LG |
395 | return -EINVAL; |
396 | } | |
397 | ||
0a1b0834 PX |
398 | /* |
399 | * DMA and IPC sequence is different for start and stop. Need to send | |
400 | * STOP IPC before stop DMA | |
401 | */ | |
402 | if (!ipc_first) | |
403 | snd_sof_pcm_platform_trigger(sdev, substream, cmd); | |
868bd00f LG |
404 | |
405 | /* send IPC to the DSP */ | |
406 | ret = sof_ipc_tx_message(sdev->ipc, stream.hdr.cmd, &stream, | |
407 | sizeof(stream), &reply, sizeof(reply)); | |
408 | ||
0a1b0834 PX |
409 | /* need to STOP DMA even if STOP IPC failed */ |
410 | if (ipc_first) | |
411 | snd_sof_pcm_platform_trigger(sdev, substream, cmd); | |
412 | ||
413 | /* free PCM if reset_hw_params is set and the STOP IPC is successful */ | |
a49b6871 KV |
414 | if (!ret && reset_hw_params) |
415 | ret = sof_pcm_dsp_pcm_free(substream, sdev, spcm); | |
868bd00f | 416 | |
a49b6871 | 417 | return ret; |
868bd00f LG |
418 | } |
419 | ||
1c91d77e KM |
420 | static snd_pcm_uframes_t sof_pcm_pointer(struct snd_soc_component *component, |
421 | struct snd_pcm_substream *substream) | |
868bd00f LG |
422 | { |
423 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
868bd00f LG |
424 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
425 | struct snd_sof_pcm *spcm; | |
426 | snd_pcm_uframes_t host, dai; | |
427 | ||
428 | /* nothing to do for BE */ | |
429 | if (rtd->dai_link->no_pcm) | |
430 | return 0; | |
431 | ||
432 | /* use dsp ops pointer callback directly if set */ | |
433 | if (sof_ops(sdev)->pcm_pointer) | |
434 | return sof_ops(sdev)->pcm_pointer(sdev, substream); | |
435 | ||
ee1e79b7 | 436 | spcm = snd_sof_find_spcm_dai(component, rtd); |
868bd00f LG |
437 | if (!spcm) |
438 | return -EINVAL; | |
439 | ||
440 | /* read position from DSP */ | |
441 | host = bytes_to_frames(substream->runtime, | |
442 | spcm->stream[substream->stream].posn.host_posn); | |
443 | dai = bytes_to_frames(substream->runtime, | |
444 | spcm->stream[substream->stream].posn.dai_posn); | |
445 | ||
ee1e79b7 RS |
446 | dev_dbg(component->dev, |
447 | "PCM: stream %d dir %d DMA position %lu DAI position %lu\n", | |
868bd00f LG |
448 | spcm->pcm.pcm_id, substream->stream, host, dai); |
449 | ||
450 | return host; | |
451 | } | |
452 | ||
1c91d77e KM |
453 | static int sof_pcm_open(struct snd_soc_component *component, |
454 | struct snd_pcm_substream *substream) | |
868bd00f LG |
455 | { |
456 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
457 | struct snd_pcm_runtime *runtime = substream->runtime; | |
868bd00f | 458 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
27e322fa | 459 | const struct snd_sof_dsp_ops *ops = sof_ops(sdev); |
868bd00f LG |
460 | struct snd_sof_pcm *spcm; |
461 | struct snd_soc_tplg_stream_caps *caps; | |
462 | int ret; | |
868bd00f LG |
463 | |
464 | /* nothing to do for BE */ | |
465 | if (rtd->dai_link->no_pcm) | |
466 | return 0; | |
467 | ||
ee1e79b7 | 468 | spcm = snd_sof_find_spcm_dai(component, rtd); |
868bd00f LG |
469 | if (!spcm) |
470 | return -EINVAL; | |
471 | ||
ee1e79b7 RS |
472 | dev_dbg(component->dev, "pcm: open stream %d dir %d\n", |
473 | spcm->pcm.pcm_id, substream->stream); | |
868bd00f | 474 | |
fab4edf4 PLB |
475 | INIT_WORK(&spcm->stream[substream->stream].period_elapsed_work, |
476 | sof_pcm_period_elapsed_work); | |
868bd00f LG |
477 | |
478 | caps = &spcm->pcm.caps[substream->stream]; | |
479 | ||
868bd00f LG |
480 | /* set any runtime constraints based on topology */ |
481 | snd_pcm_hw_constraint_step(substream->runtime, 0, | |
482 | SNDRV_PCM_HW_PARAM_BUFFER_BYTES, | |
483 | le32_to_cpu(caps->period_size_min)); | |
484 | snd_pcm_hw_constraint_step(substream->runtime, 0, | |
485 | SNDRV_PCM_HW_PARAM_PERIOD_BYTES, | |
486 | le32_to_cpu(caps->period_size_min)); | |
487 | ||
488 | /* set runtime config */ | |
27e322fa PLB |
489 | runtime->hw.info = ops->hw_info; /* platform-specific */ |
490 | ||
868bd00f LG |
491 | runtime->hw.formats = le64_to_cpu(caps->formats); |
492 | runtime->hw.period_bytes_min = le32_to_cpu(caps->period_size_min); | |
493 | runtime->hw.period_bytes_max = le32_to_cpu(caps->period_size_max); | |
494 | runtime->hw.periods_min = le32_to_cpu(caps->periods_min); | |
495 | runtime->hw.periods_max = le32_to_cpu(caps->periods_max); | |
496 | ||
497 | /* | |
498 | * caps->buffer_size_min is not used since the | |
499 | * snd_pcm_hardware structure only defines buffer_bytes_max | |
500 | */ | |
501 | runtime->hw.buffer_bytes_max = le32_to_cpu(caps->buffer_size_max); | |
502 | ||
ee1e79b7 | 503 | dev_dbg(component->dev, "period min %zd max %zd bytes\n", |
868bd00f LG |
504 | runtime->hw.period_bytes_min, |
505 | runtime->hw.period_bytes_max); | |
ee1e79b7 | 506 | dev_dbg(component->dev, "period count %d max %d\n", |
868bd00f LG |
507 | runtime->hw.periods_min, |
508 | runtime->hw.periods_max); | |
ee1e79b7 | 509 | dev_dbg(component->dev, "buffer max %zd bytes\n", |
868bd00f LG |
510 | runtime->hw.buffer_bytes_max); |
511 | ||
512 | /* set wait time - TODO: come from topology */ | |
513 | substream->wait_time = 500; | |
514 | ||
515 | spcm->stream[substream->stream].posn.host_posn = 0; | |
516 | spcm->stream[substream->stream].posn.dai_posn = 0; | |
517 | spcm->stream[substream->stream].substream = substream; | |
04c80277 | 518 | spcm->prepared[substream->stream] = false; |
868bd00f LG |
519 | |
520 | ret = snd_sof_pcm_platform_open(sdev, substream); | |
14a2212d | 521 | if (ret < 0) |
ee1e79b7 | 522 | dev_err(component->dev, "error: pcm open failed %d\n", ret); |
868bd00f LG |
523 | |
524 | return ret; | |
525 | } | |
526 | ||
1c91d77e KM |
527 | static int sof_pcm_close(struct snd_soc_component *component, |
528 | struct snd_pcm_substream *substream) | |
868bd00f LG |
529 | { |
530 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
868bd00f LG |
531 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
532 | struct snd_sof_pcm *spcm; | |
533 | int err; | |
534 | ||
535 | /* nothing to do for BE */ | |
536 | if (rtd->dai_link->no_pcm) | |
537 | return 0; | |
538 | ||
ee1e79b7 | 539 | spcm = snd_sof_find_spcm_dai(component, rtd); |
868bd00f LG |
540 | if (!spcm) |
541 | return -EINVAL; | |
542 | ||
ee1e79b7 RS |
543 | dev_dbg(component->dev, "pcm: close stream %d dir %d\n", |
544 | spcm->pcm.pcm_id, substream->stream); | |
868bd00f LG |
545 | |
546 | err = snd_sof_pcm_platform_close(sdev, substream); | |
547 | if (err < 0) { | |
ee1e79b7 | 548 | dev_err(component->dev, "error: pcm close failed %d\n", |
868bd00f LG |
549 | err); |
550 | /* | |
551 | * keep going, no point in preventing the close | |
552 | * from happening | |
553 | */ | |
554 | } | |
555 | ||
868bd00f LG |
556 | return 0; |
557 | } | |
558 | ||
868bd00f LG |
559 | /* |
560 | * Pre-allocate playback/capture audio buffer pages. | |
561 | * no need to explicitly release memory preallocated by sof_pcm_new in pcm_free | |
562 | * snd_pcm_lib_preallocate_free_for_all() is called by the core. | |
563 | */ | |
1c91d77e KM |
564 | static int sof_pcm_new(struct snd_soc_component *component, |
565 | struct snd_soc_pcm_runtime *rtd) | |
868bd00f | 566 | { |
868bd00f LG |
567 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
568 | struct snd_sof_pcm *spcm; | |
569 | struct snd_pcm *pcm = rtd->pcm; | |
570 | struct snd_soc_tplg_stream_caps *caps; | |
571 | int stream = SNDRV_PCM_STREAM_PLAYBACK; | |
572 | ||
573 | /* find SOF PCM for this RTD */ | |
ee1e79b7 | 574 | spcm = snd_sof_find_spcm_dai(component, rtd); |
868bd00f | 575 | if (!spcm) { |
ee1e79b7 | 576 | dev_warn(component->dev, "warn: can't find PCM with DAI ID %d\n", |
868bd00f LG |
577 | rtd->dai_link->id); |
578 | return 0; | |
579 | } | |
580 | ||
ee1e79b7 | 581 | dev_dbg(component->dev, "creating new PCM %s\n", spcm->pcm.pcm_name); |
868bd00f LG |
582 | |
583 | /* do we need to pre-allocate playback audio buffer pages */ | |
584 | if (!spcm->pcm.playback) | |
585 | goto capture; | |
586 | ||
587 | caps = &spcm->pcm.caps[stream]; | |
588 | ||
589 | /* pre-allocate playback audio buffer pages */ | |
ee1e79b7 RS |
590 | dev_dbg(component->dev, |
591 | "spcm: allocate %s playback DMA buffer size 0x%x max 0x%x\n", | |
868bd00f LG |
592 | caps->name, caps->buffer_size_min, caps->buffer_size_max); |
593 | ||
57e960f0 TI |
594 | snd_pcm_set_managed_buffer(pcm->streams[stream].substream, |
595 | SNDRV_DMA_TYPE_DEV_SG, sdev->dev, | |
596 | le32_to_cpu(caps->buffer_size_min), | |
597 | le32_to_cpu(caps->buffer_size_max)); | |
868bd00f LG |
598 | capture: |
599 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
600 | ||
601 | /* do we need to pre-allocate capture audio buffer pages */ | |
602 | if (!spcm->pcm.capture) | |
603 | return 0; | |
604 | ||
605 | caps = &spcm->pcm.caps[stream]; | |
606 | ||
607 | /* pre-allocate capture audio buffer pages */ | |
ee1e79b7 RS |
608 | dev_dbg(component->dev, |
609 | "spcm: allocate %s capture DMA buffer size 0x%x max 0x%x\n", | |
868bd00f LG |
610 | caps->name, caps->buffer_size_min, caps->buffer_size_max); |
611 | ||
57e960f0 TI |
612 | snd_pcm_set_managed_buffer(pcm->streams[stream].substream, |
613 | SNDRV_DMA_TYPE_DEV_SG, sdev->dev, | |
614 | le32_to_cpu(caps->buffer_size_min), | |
615 | le32_to_cpu(caps->buffer_size_max)); | |
868bd00f LG |
616 | |
617 | return 0; | |
618 | } | |
619 | ||
620 | /* fixup the BE DAI link to match any values from topology */ | |
621 | static int sof_pcm_dai_link_fixup(struct snd_soc_pcm_runtime *rtd, | |
622 | struct snd_pcm_hw_params *params) | |
623 | { | |
624 | struct snd_interval *rate = hw_param_interval(params, | |
625 | SNDRV_PCM_HW_PARAM_RATE); | |
626 | struct snd_interval *channels = hw_param_interval(params, | |
627 | SNDRV_PCM_HW_PARAM_CHANNELS); | |
628 | struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); | |
629 | struct snd_soc_component *component = | |
ee1e79b7 | 630 | snd_soc_rtdcom_lookup(rtd, SOF_AUDIO_PCM_DRV_NAME); |
868bd00f | 631 | struct snd_sof_dai *dai = |
ee1e79b7 | 632 | snd_sof_find_dai(component, (char *)rtd->dai_link->name); |
868bd00f LG |
633 | |
634 | /* no topology exists for this BE, try a common configuration */ | |
635 | if (!dai) { | |
ee1e79b7 RS |
636 | dev_warn(component->dev, |
637 | "warning: no topology found for BE DAI %s config\n", | |
868bd00f LG |
638 | rtd->dai_link->name); |
639 | ||
640 | /* set 48k, stereo, 16bits by default */ | |
641 | rate->min = 48000; | |
642 | rate->max = 48000; | |
643 | ||
644 | channels->min = 2; | |
645 | channels->max = 2; | |
646 | ||
647 | snd_mask_none(fmt); | |
648 | snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE); | |
649 | ||
650 | return 0; | |
651 | } | |
652 | ||
653 | /* read format from topology */ | |
654 | snd_mask_none(fmt); | |
655 | ||
656 | switch (dai->comp_dai.config.frame_fmt) { | |
657 | case SOF_IPC_FRAME_S16_LE: | |
658 | snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE); | |
659 | break; | |
660 | case SOF_IPC_FRAME_S24_4LE: | |
661 | snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE); | |
662 | break; | |
663 | case SOF_IPC_FRAME_S32_LE: | |
664 | snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S32_LE); | |
665 | break; | |
666 | default: | |
ee1e79b7 | 667 | dev_err(component->dev, "error: No available DAI format!\n"); |
868bd00f LG |
668 | return -EINVAL; |
669 | } | |
670 | ||
671 | /* read rate and channels from topology */ | |
672 | switch (dai->dai_config->type) { | |
673 | case SOF_DAI_INTEL_SSP: | |
674 | rate->min = dai->dai_config->ssp.fsync_rate; | |
675 | rate->max = dai->dai_config->ssp.fsync_rate; | |
676 | channels->min = dai->dai_config->ssp.tdm_slots; | |
677 | channels->max = dai->dai_config->ssp.tdm_slots; | |
678 | ||
ee1e79b7 | 679 | dev_dbg(component->dev, |
868bd00f | 680 | "rate_min: %d rate_max: %d\n", rate->min, rate->max); |
ee1e79b7 | 681 | dev_dbg(component->dev, |
868bd00f LG |
682 | "channels_min: %d channels_max: %d\n", |
683 | channels->min, channels->max); | |
684 | ||
685 | break; | |
686 | case SOF_DAI_INTEL_DMIC: | |
687 | /* DMIC only supports 16 or 32 bit formats */ | |
688 | if (dai->comp_dai.config.frame_fmt == SOF_IPC_FRAME_S24_4LE) { | |
ee1e79b7 | 689 | dev_err(component->dev, |
868bd00f LG |
690 | "error: invalid fmt %d for DAI type %d\n", |
691 | dai->comp_dai.config.frame_fmt, | |
692 | dai->dai_config->type); | |
693 | } | |
694 | break; | |
695 | case SOF_DAI_INTEL_HDA: | |
696 | /* do nothing for HDA dai_link */ | |
697 | break; | |
6e3360cd PLB |
698 | case SOF_DAI_INTEL_ALH: |
699 | /* do nothing for ALH dai_link */ | |
700 | break; | |
a4eff5f8 DB |
701 | case SOF_DAI_IMX_ESAI: |
702 | channels->min = dai->dai_config->esai.tdm_slots; | |
703 | channels->max = dai->dai_config->esai.tdm_slots; | |
704 | ||
d88cbd6f GR |
705 | dev_dbg(component->dev, |
706 | "channels_min: %d channels_max: %d\n", | |
707 | channels->min, channels->max); | |
708 | break; | |
709 | case SOF_DAI_IMX_SAI: | |
710 | channels->min = dai->dai_config->sai.tdm_slots; | |
711 | channels->max = dai->dai_config->sai.tdm_slots; | |
712 | ||
ee1e79b7 | 713 | dev_dbg(component->dev, |
a4eff5f8 DB |
714 | "channels_min: %d channels_max: %d\n", |
715 | channels->min, channels->max); | |
716 | break; | |
868bd00f | 717 | default: |
ee1e79b7 | 718 | dev_err(component->dev, "error: invalid DAI type %d\n", |
868bd00f LG |
719 | dai->dai_config->type); |
720 | break; | |
721 | } | |
722 | ||
723 | return 0; | |
724 | } | |
725 | ||
726 | static int sof_pcm_probe(struct snd_soc_component *component) | |
727 | { | |
728 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); | |
729 | struct snd_sof_pdata *plat_data = sdev->pdata; | |
730 | const char *tplg_filename; | |
731 | int ret; | |
732 | ||
733 | /* load the default topology */ | |
734 | sdev->component = component; | |
735 | ||
736 | tplg_filename = devm_kasprintf(sdev->dev, GFP_KERNEL, | |
737 | "%s/%s", | |
738 | plat_data->tplg_filename_prefix, | |
739 | plat_data->tplg_filename); | |
740 | if (!tplg_filename) | |
741 | return -ENOMEM; | |
742 | ||
ee1e79b7 | 743 | ret = snd_sof_load_topology(component, tplg_filename); |
868bd00f | 744 | if (ret < 0) { |
ee1e79b7 | 745 | dev_err(component->dev, "error: failed to load DSP topology %d\n", |
868bd00f LG |
746 | ret); |
747 | return ret; | |
748 | } | |
749 | ||
868bd00f LG |
750 | return ret; |
751 | } | |
752 | ||
753 | static void sof_pcm_remove(struct snd_soc_component *component) | |
754 | { | |
755 | /* remove topology */ | |
756 | snd_soc_tplg_component_remove(component, SND_SOC_TPLG_INDEX_ALL); | |
757 | } | |
758 | ||
759 | void snd_sof_new_platform_drv(struct snd_sof_dev *sdev) | |
760 | { | |
761 | struct snd_soc_component_driver *pd = &sdev->plat_drv; | |
762 | struct snd_sof_pdata *plat_data = sdev->pdata; | |
763 | const char *drv_name; | |
764 | ||
765 | drv_name = plat_data->machine->drv_name; | |
766 | ||
767 | pd->name = "sof-audio-component"; | |
768 | pd->probe = sof_pcm_probe; | |
769 | pd->remove = sof_pcm_remove; | |
1c91d77e KM |
770 | pd->open = sof_pcm_open; |
771 | pd->close = sof_pcm_close; | |
1c91d77e KM |
772 | pd->hw_params = sof_pcm_hw_params; |
773 | pd->prepare = sof_pcm_prepare; | |
774 | pd->hw_free = sof_pcm_hw_free; | |
775 | pd->trigger = sof_pcm_trigger; | |
776 | pd->pointer = sof_pcm_pointer; | |
1c91d77e | 777 | |
868bd00f LG |
778 | #if IS_ENABLED(CONFIG_SND_SOC_SOF_COMPRESS) |
779 | pd->compr_ops = &sof_compressed_ops; | |
780 | #endif | |
1c91d77e | 781 | pd->pcm_construct = sof_pcm_new; |
868bd00f LG |
782 | pd->ignore_machine = drv_name; |
783 | pd->be_hw_params_fixup = sof_pcm_dai_link_fixup; | |
784 | pd->be_pcm_base = SOF_BE_PCM_BASE; | |
785 | pd->use_dai_pcm_id = true; | |
786 | pd->topology_name_prefix = "sof"; | |
787 | ||
788 | /* increment module refcount when a pcm is opened */ | |
789 | pd->module_get_upon_open = 1; | |
790 | } |