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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" | |
17 | #include "ops.h" | |
18 | ||
19 | #define DRV_NAME "sof-audio-component" | |
20 | ||
21 | /* Create DMA buffer page table for DSP */ | |
1c91d77e KM |
22 | static int create_page_table(struct snd_soc_component *component, |
23 | struct snd_pcm_substream *substream, | |
868bd00f LG |
24 | unsigned char *dma_area, size_t size) |
25 | { | |
26 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
868bd00f LG |
27 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
28 | struct snd_sof_pcm *spcm; | |
29 | struct snd_dma_buffer *dmab = snd_pcm_get_dma_buf(substream); | |
30 | int stream = substream->stream; | |
31 | ||
32 | spcm = snd_sof_find_spcm_dai(sdev, rtd); | |
33 | if (!spcm) | |
34 | return -EINVAL; | |
35 | ||
36 | return snd_sof_create_page_table(sdev, dmab, | |
37 | spcm->stream[stream].page_table.area, size); | |
38 | } | |
39 | ||
40 | static int sof_pcm_dsp_params(struct snd_sof_pcm *spcm, struct snd_pcm_substream *substream, | |
41 | const struct sof_ipc_pcm_params_reply *reply) | |
42 | { | |
43 | struct snd_sof_dev *sdev = spcm->sdev; | |
44 | /* validate offset */ | |
45 | int ret = snd_sof_ipc_pcm_params(sdev, substream, reply); | |
46 | ||
47 | if (ret < 0) | |
48 | dev_err(sdev->dev, "error: got wrong reply for PCM %d\n", | |
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 = | |
73 | snd_soc_rtdcom_lookup(rtd, DRV_NAME); | |
74 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); | |
75 | struct snd_sof_pcm *spcm; | |
76 | ||
77 | spcm = snd_sof_find_spcm_dai(sdev, rtd); | |
78 | if (!spcm) { | |
79 | dev_err(sdev->dev, | |
80 | "error: period elapsed for unknown stream!\n"); | |
81 | return; | |
82 | } | |
83 | ||
84 | /* | |
85 | * snd_pcm_period_elapsed() can be called in interrupt context | |
86 | * before IRQ_HANDLED is returned. Inside snd_pcm_period_elapsed(), | |
87 | * when the PCM is done draining or xrun happened, a STOP IPC will | |
88 | * then be sent and this IPC will hit IPC timeout. | |
89 | * To avoid sending IPC before the previous IPC is handled, we | |
90 | * schedule delayed work here to call the snd_pcm_period_elapsed(). | |
91 | */ | |
92 | schedule_work(&spcm->stream[substream->stream].period_elapsed_work); | |
93 | } | |
94 | EXPORT_SYMBOL(snd_sof_pcm_period_elapsed); | |
95 | ||
868bd00f | 96 | /* this may get called several times by oss emulation */ |
1c91d77e KM |
97 | static int sof_pcm_hw_params(struct snd_soc_component *component, |
98 | struct snd_pcm_substream *substream, | |
868bd00f LG |
99 | struct snd_pcm_hw_params *params) |
100 | { | |
101 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
102 | struct snd_pcm_runtime *runtime = substream->runtime; | |
868bd00f LG |
103 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
104 | struct snd_sof_pcm *spcm; | |
105 | struct sof_ipc_pcm_params pcm; | |
106 | struct sof_ipc_pcm_params_reply ipc_params_reply; | |
107 | int ret; | |
108 | ||
109 | /* nothing to do for BE */ | |
110 | if (rtd->dai_link->no_pcm) | |
111 | return 0; | |
112 | ||
113 | spcm = snd_sof_find_spcm_dai(sdev, rtd); | |
114 | if (!spcm) | |
115 | return -EINVAL; | |
116 | ||
117 | dev_dbg(sdev->dev, "pcm: hw params stream %d dir %d\n", | |
118 | spcm->pcm.pcm_id, substream->stream); | |
119 | ||
120 | memset(&pcm, 0, sizeof(pcm)); | |
121 | ||
122 | /* allocate audio buffer pages */ | |
123 | ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); | |
124 | if (ret < 0) { | |
125 | dev_err(sdev->dev, "error: could not allocate %d bytes for PCM %d\n", | |
126 | params_buffer_bytes(params), spcm->pcm.pcm_id); | |
127 | return ret; | |
128 | } | |
129 | if (ret) { | |
130 | /* | |
131 | * ret == 1 means the buffer is changed | |
132 | * create compressed page table for audio firmware | |
133 | * ret == 0 means the buffer is not changed | |
134 | * so no need to regenerate the page table | |
135 | */ | |
1c91d77e | 136 | ret = create_page_table(component, substream, runtime->dma_area, |
868bd00f LG |
137 | runtime->dma_bytes); |
138 | if (ret < 0) | |
139 | return ret; | |
140 | } | |
141 | ||
142 | /* number of pages should be rounded up */ | |
143 | pcm.params.buffer.pages = PFN_UP(runtime->dma_bytes); | |
144 | ||
145 | /* set IPC PCM parameters */ | |
146 | pcm.hdr.size = sizeof(pcm); | |
147 | pcm.hdr.cmd = SOF_IPC_GLB_STREAM_MSG | SOF_IPC_STREAM_PCM_PARAMS; | |
148 | pcm.comp_id = spcm->stream[substream->stream].comp_id; | |
149 | pcm.params.hdr.size = sizeof(pcm.params); | |
150 | pcm.params.buffer.phy_addr = | |
151 | spcm->stream[substream->stream].page_table.addr; | |
152 | pcm.params.buffer.size = runtime->dma_bytes; | |
153 | pcm.params.direction = substream->stream; | |
154 | pcm.params.sample_valid_bytes = params_width(params) >> 3; | |
155 | pcm.params.buffer_fmt = SOF_IPC_BUFFER_INTERLEAVED; | |
156 | pcm.params.rate = params_rate(params); | |
157 | pcm.params.channels = params_channels(params); | |
158 | pcm.params.host_period_bytes = params_period_bytes(params); | |
159 | ||
160 | /* container size */ | |
161 | ret = snd_pcm_format_physical_width(params_format(params)); | |
162 | if (ret < 0) | |
163 | return ret; | |
164 | pcm.params.sample_container_bytes = ret >> 3; | |
165 | ||
166 | /* format */ | |
167 | switch (params_format(params)) { | |
168 | case SNDRV_PCM_FORMAT_S16: | |
169 | pcm.params.frame_fmt = SOF_IPC_FRAME_S16_LE; | |
170 | break; | |
171 | case SNDRV_PCM_FORMAT_S24: | |
172 | pcm.params.frame_fmt = SOF_IPC_FRAME_S24_4LE; | |
173 | break; | |
174 | case SNDRV_PCM_FORMAT_S32: | |
175 | pcm.params.frame_fmt = SOF_IPC_FRAME_S32_LE; | |
176 | break; | |
177 | case SNDRV_PCM_FORMAT_FLOAT: | |
178 | pcm.params.frame_fmt = SOF_IPC_FRAME_FLOAT; | |
179 | break; | |
180 | default: | |
181 | return -EINVAL; | |
182 | } | |
183 | ||
184 | /* firmware already configured host stream */ | |
185 | ret = snd_sof_pcm_platform_hw_params(sdev, | |
186 | substream, | |
187 | params, | |
188 | &pcm.params); | |
189 | if (ret < 0) { | |
190 | dev_err(sdev->dev, "error: platform hw params failed\n"); | |
191 | return ret; | |
192 | } | |
193 | ||
194 | dev_dbg(sdev->dev, "stream_tag %d", pcm.params.stream_tag); | |
195 | ||
196 | /* send IPC to the DSP */ | |
197 | ret = sof_ipc_tx_message(sdev->ipc, pcm.hdr.cmd, &pcm, sizeof(pcm), | |
198 | &ipc_params_reply, sizeof(ipc_params_reply)); | |
199 | if (ret < 0) { | |
200 | dev_err(sdev->dev, "error: hw params ipc failed for stream %d\n", | |
201 | pcm.params.stream_tag); | |
202 | return ret; | |
203 | } | |
204 | ||
205 | ret = sof_pcm_dsp_params(spcm, substream, &ipc_params_reply); | |
206 | if (ret < 0) | |
207 | return ret; | |
208 | ||
04c80277 KV |
209 | spcm->prepared[substream->stream] = true; |
210 | ||
868bd00f LG |
211 | /* save pcm hw_params */ |
212 | memcpy(&spcm->params[substream->stream], params, sizeof(*params)); | |
213 | ||
214 | return ret; | |
215 | } | |
216 | ||
a49b6871 KV |
217 | static int sof_pcm_dsp_pcm_free(struct snd_pcm_substream *substream, |
218 | struct snd_sof_dev *sdev, | |
219 | struct snd_sof_pcm *spcm) | |
220 | { | |
221 | struct sof_ipc_stream stream; | |
222 | struct sof_ipc_reply reply; | |
223 | int ret; | |
224 | ||
225 | stream.hdr.size = sizeof(stream); | |
226 | stream.hdr.cmd = SOF_IPC_GLB_STREAM_MSG | SOF_IPC_STREAM_PCM_FREE; | |
227 | stream.comp_id = spcm->stream[substream->stream].comp_id; | |
228 | ||
229 | /* send IPC to the DSP */ | |
230 | ret = sof_ipc_tx_message(sdev->ipc, stream.hdr.cmd, &stream, | |
231 | sizeof(stream), &reply, sizeof(reply)); | |
232 | if (!ret) | |
233 | spcm->prepared[substream->stream] = false; | |
234 | ||
235 | return ret; | |
236 | } | |
237 | ||
1c91d77e KM |
238 | static int sof_pcm_hw_free(struct snd_soc_component *component, |
239 | struct snd_pcm_substream *substream) | |
868bd00f LG |
240 | { |
241 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
868bd00f LG |
242 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
243 | struct snd_sof_pcm *spcm; | |
e66e52c5 | 244 | int ret, err = 0; |
868bd00f LG |
245 | |
246 | /* nothing to do for BE */ | |
247 | if (rtd->dai_link->no_pcm) | |
248 | return 0; | |
249 | ||
250 | spcm = snd_sof_find_spcm_dai(sdev, rtd); | |
251 | if (!spcm) | |
252 | return -EINVAL; | |
253 | ||
254 | dev_dbg(sdev->dev, "pcm: free stream %d dir %d\n", spcm->pcm.pcm_id, | |
255 | substream->stream); | |
256 | ||
e66e52c5 KV |
257 | if (spcm->prepared[substream->stream]) { |
258 | ret = sof_pcm_dsp_pcm_free(substream, sdev, spcm); | |
259 | if (ret < 0) | |
260 | err = ret; | |
261 | } | |
868bd00f LG |
262 | |
263 | snd_pcm_lib_free_pages(substream); | |
e2803e61 KJ |
264 | |
265 | cancel_work_sync(&spcm->stream[substream->stream].period_elapsed_work); | |
266 | ||
93146bc2 | 267 | ret = snd_sof_pcm_platform_hw_free(sdev, substream); |
e66e52c5 | 268 | if (ret < 0) { |
93146bc2 | 269 | dev_err(sdev->dev, "error: platform hw free failed\n"); |
e66e52c5 KV |
270 | err = ret; |
271 | } | |
93146bc2 | 272 | |
e66e52c5 | 273 | return err; |
868bd00f LG |
274 | } |
275 | ||
1c91d77e KM |
276 | static int sof_pcm_prepare(struct snd_soc_component *component, |
277 | struct snd_pcm_substream *substream) | |
868bd00f LG |
278 | { |
279 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
868bd00f LG |
280 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
281 | struct snd_sof_pcm *spcm; | |
282 | int ret; | |
283 | ||
284 | /* nothing to do for BE */ | |
285 | if (rtd->dai_link->no_pcm) | |
286 | return 0; | |
287 | ||
288 | spcm = snd_sof_find_spcm_dai(sdev, rtd); | |
289 | if (!spcm) | |
290 | return -EINVAL; | |
291 | ||
04c80277 | 292 | if (spcm->prepared[substream->stream]) |
868bd00f LG |
293 | return 0; |
294 | ||
295 | dev_dbg(sdev->dev, "pcm: prepare stream %d dir %d\n", spcm->pcm.pcm_id, | |
296 | substream->stream); | |
297 | ||
298 | /* set hw_params */ | |
1c91d77e KM |
299 | ret = sof_pcm_hw_params(component, |
300 | substream, &spcm->params[substream->stream]); | |
868bd00f LG |
301 | if (ret < 0) { |
302 | dev_err(sdev->dev, "error: set pcm hw_params after resume\n"); | |
303 | return ret; | |
304 | } | |
305 | ||
306 | return 0; | |
307 | } | |
308 | ||
309 | /* | |
310 | * FE dai link trigger actions are always executed in non-atomic context because | |
311 | * they involve IPC's. | |
312 | */ | |
1c91d77e KM |
313 | static int sof_pcm_trigger(struct snd_soc_component *component, |
314 | struct snd_pcm_substream *substream, int cmd) | |
868bd00f LG |
315 | { |
316 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
868bd00f LG |
317 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
318 | struct snd_sof_pcm *spcm; | |
319 | struct sof_ipc_stream stream; | |
320 | struct sof_ipc_reply reply; | |
04c80277 | 321 | bool reset_hw_params = false; |
0a1b0834 | 322 | bool ipc_first = false; |
868bd00f LG |
323 | int ret; |
324 | ||
325 | /* nothing to do for BE */ | |
326 | if (rtd->dai_link->no_pcm) | |
327 | return 0; | |
328 | ||
329 | spcm = snd_sof_find_spcm_dai(sdev, rtd); | |
330 | if (!spcm) | |
331 | return -EINVAL; | |
332 | ||
333 | dev_dbg(sdev->dev, "pcm: trigger stream %d dir %d cmd %d\n", | |
334 | spcm->pcm.pcm_id, substream->stream, cmd); | |
335 | ||
336 | stream.hdr.size = sizeof(stream); | |
337 | stream.hdr.cmd = SOF_IPC_GLB_STREAM_MSG; | |
338 | stream.comp_id = spcm->stream[substream->stream].comp_id; | |
339 | ||
340 | switch (cmd) { | |
341 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
342 | stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_PAUSE; | |
0a1b0834 | 343 | ipc_first = true; |
868bd00f LG |
344 | break; |
345 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
346 | stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_RELEASE; | |
347 | break; | |
348 | case SNDRV_PCM_TRIGGER_RESUME: | |
ac8c046f KJ |
349 | if (spcm->stream[substream->stream].suspend_ignored) { |
350 | /* | |
351 | * this case will be triggered when INFO_RESUME is | |
352 | * supported, no need to resume streams that remained | |
353 | * enabled in D0ix. | |
354 | */ | |
355 | spcm->stream[substream->stream].suspend_ignored = false; | |
356 | return 0; | |
357 | } | |
358 | ||
868bd00f | 359 | /* set up hw_params */ |
1c91d77e | 360 | ret = sof_pcm_prepare(component, substream); |
868bd00f LG |
361 | if (ret < 0) { |
362 | dev_err(sdev->dev, | |
363 | "error: failed to set up hw_params upon resume\n"); | |
364 | return ret; | |
365 | } | |
366 | ||
367 | /* fallthrough */ | |
368 | case SNDRV_PCM_TRIGGER_START: | |
ac8c046f KJ |
369 | if (spcm->stream[substream->stream].suspend_ignored) { |
370 | /* | |
371 | * This case will be triggered when INFO_RESUME is | |
372 | * not supported, no need to re-start streams that | |
373 | * remained enabled in D0ix. | |
374 | */ | |
375 | spcm->stream[substream->stream].suspend_ignored = false; | |
376 | return 0; | |
377 | } | |
868bd00f LG |
378 | stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_START; |
379 | break; | |
380 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
ac8c046f KJ |
381 | if (sdev->s0_suspend && |
382 | spcm->stream[substream->stream].d0i3_compatible) { | |
383 | /* | |
384 | * trap the event, not sending trigger stop to | |
385 | * prevent the FW pipelines from being stopped, | |
386 | * and mark the flag to ignore the upcoming DAPM | |
387 | * PM events. | |
388 | */ | |
389 | spcm->stream[substream->stream].suspend_ignored = true; | |
390 | return 0; | |
391 | } | |
392 | /* fallthrough */ | |
868bd00f LG |
393 | case SNDRV_PCM_TRIGGER_STOP: |
394 | stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_STOP; | |
0a1b0834 | 395 | ipc_first = true; |
04c80277 | 396 | reset_hw_params = true; |
868bd00f LG |
397 | break; |
398 | default: | |
399 | dev_err(sdev->dev, "error: unhandled trigger cmd %d\n", cmd); | |
400 | return -EINVAL; | |
401 | } | |
402 | ||
0a1b0834 PX |
403 | /* |
404 | * DMA and IPC sequence is different for start and stop. Need to send | |
405 | * STOP IPC before stop DMA | |
406 | */ | |
407 | if (!ipc_first) | |
408 | snd_sof_pcm_platform_trigger(sdev, substream, cmd); | |
868bd00f LG |
409 | |
410 | /* send IPC to the DSP */ | |
411 | ret = sof_ipc_tx_message(sdev->ipc, stream.hdr.cmd, &stream, | |
412 | sizeof(stream), &reply, sizeof(reply)); | |
413 | ||
0a1b0834 PX |
414 | /* need to STOP DMA even if STOP IPC failed */ |
415 | if (ipc_first) | |
416 | snd_sof_pcm_platform_trigger(sdev, substream, cmd); | |
417 | ||
418 | /* free PCM if reset_hw_params is set and the STOP IPC is successful */ | |
a49b6871 KV |
419 | if (!ret && reset_hw_params) |
420 | ret = sof_pcm_dsp_pcm_free(substream, sdev, spcm); | |
868bd00f | 421 | |
a49b6871 | 422 | return ret; |
868bd00f LG |
423 | } |
424 | ||
1c91d77e KM |
425 | static snd_pcm_uframes_t sof_pcm_pointer(struct snd_soc_component *component, |
426 | struct snd_pcm_substream *substream) | |
868bd00f LG |
427 | { |
428 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
868bd00f LG |
429 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
430 | struct snd_sof_pcm *spcm; | |
431 | snd_pcm_uframes_t host, dai; | |
432 | ||
433 | /* nothing to do for BE */ | |
434 | if (rtd->dai_link->no_pcm) | |
435 | return 0; | |
436 | ||
437 | /* use dsp ops pointer callback directly if set */ | |
438 | if (sof_ops(sdev)->pcm_pointer) | |
439 | return sof_ops(sdev)->pcm_pointer(sdev, substream); | |
440 | ||
441 | spcm = snd_sof_find_spcm_dai(sdev, rtd); | |
442 | if (!spcm) | |
443 | return -EINVAL; | |
444 | ||
445 | /* read position from DSP */ | |
446 | host = bytes_to_frames(substream->runtime, | |
447 | spcm->stream[substream->stream].posn.host_posn); | |
448 | dai = bytes_to_frames(substream->runtime, | |
449 | spcm->stream[substream->stream].posn.dai_posn); | |
450 | ||
451 | dev_dbg(sdev->dev, "PCM: stream %d dir %d DMA position %lu DAI position %lu\n", | |
452 | spcm->pcm.pcm_id, substream->stream, host, dai); | |
453 | ||
454 | return host; | |
455 | } | |
456 | ||
1c91d77e KM |
457 | static int sof_pcm_open(struct snd_soc_component *component, |
458 | struct snd_pcm_substream *substream) | |
868bd00f LG |
459 | { |
460 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
461 | struct snd_pcm_runtime *runtime = substream->runtime; | |
868bd00f | 462 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
27e322fa | 463 | const struct snd_sof_dsp_ops *ops = sof_ops(sdev); |
868bd00f LG |
464 | struct snd_sof_pcm *spcm; |
465 | struct snd_soc_tplg_stream_caps *caps; | |
466 | int ret; | |
868bd00f LG |
467 | |
468 | /* nothing to do for BE */ | |
469 | if (rtd->dai_link->no_pcm) | |
470 | return 0; | |
471 | ||
472 | spcm = snd_sof_find_spcm_dai(sdev, rtd); | |
473 | if (!spcm) | |
474 | return -EINVAL; | |
475 | ||
476 | dev_dbg(sdev->dev, "pcm: open stream %d dir %d\n", spcm->pcm.pcm_id, | |
477 | substream->stream); | |
478 | ||
fab4edf4 PLB |
479 | INIT_WORK(&spcm->stream[substream->stream].period_elapsed_work, |
480 | sof_pcm_period_elapsed_work); | |
868bd00f LG |
481 | |
482 | caps = &spcm->pcm.caps[substream->stream]; | |
483 | ||
868bd00f LG |
484 | /* set any runtime constraints based on topology */ |
485 | snd_pcm_hw_constraint_step(substream->runtime, 0, | |
486 | SNDRV_PCM_HW_PARAM_BUFFER_BYTES, | |
487 | le32_to_cpu(caps->period_size_min)); | |
488 | snd_pcm_hw_constraint_step(substream->runtime, 0, | |
489 | SNDRV_PCM_HW_PARAM_PERIOD_BYTES, | |
490 | le32_to_cpu(caps->period_size_min)); | |
491 | ||
492 | /* set runtime config */ | |
27e322fa PLB |
493 | runtime->hw.info = ops->hw_info; /* platform-specific */ |
494 | ||
868bd00f LG |
495 | runtime->hw.formats = le64_to_cpu(caps->formats); |
496 | runtime->hw.period_bytes_min = le32_to_cpu(caps->period_size_min); | |
497 | runtime->hw.period_bytes_max = le32_to_cpu(caps->period_size_max); | |
498 | runtime->hw.periods_min = le32_to_cpu(caps->periods_min); | |
499 | runtime->hw.periods_max = le32_to_cpu(caps->periods_max); | |
500 | ||
501 | /* | |
502 | * caps->buffer_size_min is not used since the | |
503 | * snd_pcm_hardware structure only defines buffer_bytes_max | |
504 | */ | |
505 | runtime->hw.buffer_bytes_max = le32_to_cpu(caps->buffer_size_max); | |
506 | ||
507 | dev_dbg(sdev->dev, "period min %zd max %zd bytes\n", | |
508 | runtime->hw.period_bytes_min, | |
509 | runtime->hw.period_bytes_max); | |
510 | dev_dbg(sdev->dev, "period count %d max %d\n", | |
511 | runtime->hw.periods_min, | |
512 | runtime->hw.periods_max); | |
513 | dev_dbg(sdev->dev, "buffer max %zd bytes\n", | |
514 | runtime->hw.buffer_bytes_max); | |
515 | ||
516 | /* set wait time - TODO: come from topology */ | |
517 | substream->wait_time = 500; | |
518 | ||
519 | spcm->stream[substream->stream].posn.host_posn = 0; | |
520 | spcm->stream[substream->stream].posn.dai_posn = 0; | |
521 | spcm->stream[substream->stream].substream = substream; | |
04c80277 | 522 | spcm->prepared[substream->stream] = false; |
868bd00f LG |
523 | |
524 | ret = snd_sof_pcm_platform_open(sdev, substream); | |
14a2212d RS |
525 | if (ret < 0) |
526 | dev_err(sdev->dev, "error: pcm open failed %d\n", ret); | |
868bd00f LG |
527 | |
528 | return ret; | |
529 | } | |
530 | ||
1c91d77e KM |
531 | static int sof_pcm_close(struct snd_soc_component *component, |
532 | struct snd_pcm_substream *substream) | |
868bd00f LG |
533 | { |
534 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
868bd00f LG |
535 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
536 | struct snd_sof_pcm *spcm; | |
537 | int err; | |
538 | ||
539 | /* nothing to do for BE */ | |
540 | if (rtd->dai_link->no_pcm) | |
541 | return 0; | |
542 | ||
543 | spcm = snd_sof_find_spcm_dai(sdev, rtd); | |
544 | if (!spcm) | |
545 | return -EINVAL; | |
546 | ||
547 | dev_dbg(sdev->dev, "pcm: close stream %d dir %d\n", spcm->pcm.pcm_id, | |
548 | substream->stream); | |
549 | ||
550 | err = snd_sof_pcm_platform_close(sdev, substream); | |
551 | if (err < 0) { | |
552 | dev_err(sdev->dev, "error: pcm close failed %d\n", | |
553 | err); | |
554 | /* | |
555 | * keep going, no point in preventing the close | |
556 | * from happening | |
557 | */ | |
558 | } | |
559 | ||
868bd00f LG |
560 | return 0; |
561 | } | |
562 | ||
868bd00f LG |
563 | /* |
564 | * Pre-allocate playback/capture audio buffer pages. | |
565 | * no need to explicitly release memory preallocated by sof_pcm_new in pcm_free | |
566 | * snd_pcm_lib_preallocate_free_for_all() is called by the core. | |
567 | */ | |
1c91d77e KM |
568 | static int sof_pcm_new(struct snd_soc_component *component, |
569 | struct snd_soc_pcm_runtime *rtd) | |
868bd00f | 570 | { |
868bd00f LG |
571 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); |
572 | struct snd_sof_pcm *spcm; | |
573 | struct snd_pcm *pcm = rtd->pcm; | |
574 | struct snd_soc_tplg_stream_caps *caps; | |
575 | int stream = SNDRV_PCM_STREAM_PLAYBACK; | |
576 | ||
577 | /* find SOF PCM for this RTD */ | |
578 | spcm = snd_sof_find_spcm_dai(sdev, rtd); | |
579 | if (!spcm) { | |
580 | dev_warn(sdev->dev, "warn: can't find PCM with DAI ID %d\n", | |
581 | rtd->dai_link->id); | |
582 | return 0; | |
583 | } | |
584 | ||
585 | dev_dbg(sdev->dev, "creating new PCM %s\n", spcm->pcm.pcm_name); | |
586 | ||
587 | /* do we need to pre-allocate playback audio buffer pages */ | |
588 | if (!spcm->pcm.playback) | |
589 | goto capture; | |
590 | ||
591 | caps = &spcm->pcm.caps[stream]; | |
592 | ||
593 | /* pre-allocate playback audio buffer pages */ | |
594 | dev_dbg(sdev->dev, "spcm: allocate %s playback DMA buffer size 0x%x max 0x%x\n", | |
595 | caps->name, caps->buffer_size_min, caps->buffer_size_max); | |
596 | ||
597 | snd_pcm_lib_preallocate_pages(pcm->streams[stream].substream, | |
598 | SNDRV_DMA_TYPE_DEV_SG, sdev->dev, | |
599 | le32_to_cpu(caps->buffer_size_min), | |
600 | le32_to_cpu(caps->buffer_size_max)); | |
601 | capture: | |
602 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
603 | ||
604 | /* do we need to pre-allocate capture audio buffer pages */ | |
605 | if (!spcm->pcm.capture) | |
606 | return 0; | |
607 | ||
608 | caps = &spcm->pcm.caps[stream]; | |
609 | ||
610 | /* pre-allocate capture audio buffer pages */ | |
611 | dev_dbg(sdev->dev, "spcm: allocate %s capture DMA buffer size 0x%x max 0x%x\n", | |
612 | caps->name, caps->buffer_size_min, caps->buffer_size_max); | |
613 | ||
614 | snd_pcm_lib_preallocate_pages(pcm->streams[stream].substream, | |
615 | SNDRV_DMA_TYPE_DEV_SG, sdev->dev, | |
616 | le32_to_cpu(caps->buffer_size_min), | |
617 | le32_to_cpu(caps->buffer_size_max)); | |
618 | ||
619 | return 0; | |
620 | } | |
621 | ||
622 | /* fixup the BE DAI link to match any values from topology */ | |
623 | static int sof_pcm_dai_link_fixup(struct snd_soc_pcm_runtime *rtd, | |
624 | struct snd_pcm_hw_params *params) | |
625 | { | |
626 | struct snd_interval *rate = hw_param_interval(params, | |
627 | SNDRV_PCM_HW_PARAM_RATE); | |
628 | struct snd_interval *channels = hw_param_interval(params, | |
629 | SNDRV_PCM_HW_PARAM_CHANNELS); | |
630 | struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); | |
631 | struct snd_soc_component *component = | |
632 | snd_soc_rtdcom_lookup(rtd, DRV_NAME); | |
633 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); | |
634 | struct snd_sof_dai *dai = | |
635 | snd_sof_find_dai(sdev, (char *)rtd->dai_link->name); | |
636 | ||
637 | /* no topology exists for this BE, try a common configuration */ | |
638 | if (!dai) { | |
639 | dev_warn(sdev->dev, "warning: no topology found for BE DAI %s config\n", | |
640 | rtd->dai_link->name); | |
641 | ||
642 | /* set 48k, stereo, 16bits by default */ | |
643 | rate->min = 48000; | |
644 | rate->max = 48000; | |
645 | ||
646 | channels->min = 2; | |
647 | channels->max = 2; | |
648 | ||
649 | snd_mask_none(fmt); | |
650 | snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE); | |
651 | ||
652 | return 0; | |
653 | } | |
654 | ||
655 | /* read format from topology */ | |
656 | snd_mask_none(fmt); | |
657 | ||
658 | switch (dai->comp_dai.config.frame_fmt) { | |
659 | case SOF_IPC_FRAME_S16_LE: | |
660 | snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE); | |
661 | break; | |
662 | case SOF_IPC_FRAME_S24_4LE: | |
663 | snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE); | |
664 | break; | |
665 | case SOF_IPC_FRAME_S32_LE: | |
666 | snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S32_LE); | |
667 | break; | |
668 | default: | |
669 | dev_err(sdev->dev, "error: No available DAI format!\n"); | |
670 | return -EINVAL; | |
671 | } | |
672 | ||
673 | /* read rate and channels from topology */ | |
674 | switch (dai->dai_config->type) { | |
675 | case SOF_DAI_INTEL_SSP: | |
676 | rate->min = dai->dai_config->ssp.fsync_rate; | |
677 | rate->max = dai->dai_config->ssp.fsync_rate; | |
678 | channels->min = dai->dai_config->ssp.tdm_slots; | |
679 | channels->max = dai->dai_config->ssp.tdm_slots; | |
680 | ||
681 | dev_dbg(sdev->dev, | |
682 | "rate_min: %d rate_max: %d\n", rate->min, rate->max); | |
683 | dev_dbg(sdev->dev, | |
684 | "channels_min: %d channels_max: %d\n", | |
685 | channels->min, channels->max); | |
686 | ||
687 | break; | |
688 | case SOF_DAI_INTEL_DMIC: | |
689 | /* DMIC only supports 16 or 32 bit formats */ | |
690 | if (dai->comp_dai.config.frame_fmt == SOF_IPC_FRAME_S24_4LE) { | |
691 | dev_err(sdev->dev, | |
692 | "error: invalid fmt %d for DAI type %d\n", | |
693 | dai->comp_dai.config.frame_fmt, | |
694 | dai->dai_config->type); | |
695 | } | |
696 | break; | |
697 | case SOF_DAI_INTEL_HDA: | |
698 | /* do nothing for HDA dai_link */ | |
699 | break; | |
6e3360cd PLB |
700 | case SOF_DAI_INTEL_ALH: |
701 | /* do nothing for ALH dai_link */ | |
702 | break; | |
a4eff5f8 DB |
703 | case SOF_DAI_IMX_ESAI: |
704 | channels->min = dai->dai_config->esai.tdm_slots; | |
705 | channels->max = dai->dai_config->esai.tdm_slots; | |
706 | ||
707 | dev_dbg(sdev->dev, | |
708 | "channels_min: %d channels_max: %d\n", | |
709 | channels->min, channels->max); | |
710 | break; | |
868bd00f LG |
711 | default: |
712 | dev_err(sdev->dev, "error: invalid DAI type %d\n", | |
713 | dai->dai_config->type); | |
714 | break; | |
715 | } | |
716 | ||
717 | return 0; | |
718 | } | |
719 | ||
720 | static int sof_pcm_probe(struct snd_soc_component *component) | |
721 | { | |
722 | struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); | |
723 | struct snd_sof_pdata *plat_data = sdev->pdata; | |
724 | const char *tplg_filename; | |
725 | int ret; | |
726 | ||
727 | /* load the default topology */ | |
728 | sdev->component = component; | |
729 | ||
730 | tplg_filename = devm_kasprintf(sdev->dev, GFP_KERNEL, | |
731 | "%s/%s", | |
732 | plat_data->tplg_filename_prefix, | |
733 | plat_data->tplg_filename); | |
734 | if (!tplg_filename) | |
735 | return -ENOMEM; | |
736 | ||
737 | ret = snd_sof_load_topology(sdev, tplg_filename); | |
738 | if (ret < 0) { | |
739 | dev_err(sdev->dev, "error: failed to load DSP topology %d\n", | |
740 | ret); | |
741 | return ret; | |
742 | } | |
743 | ||
744 | /* | |
745 | * Some platforms in SOF, ex: BYT, may not have their platform PM | |
746 | * callbacks set. Increment the usage count so as to | |
747 | * prevent the device from entering runtime suspend. | |
748 | */ | |
749 | if (!sof_ops(sdev)->runtime_suspend || !sof_ops(sdev)->runtime_resume) | |
750 | pm_runtime_get_noresume(sdev->dev); | |
751 | ||
752 | return ret; | |
753 | } | |
754 | ||
755 | static void sof_pcm_remove(struct snd_soc_component *component) | |
756 | { | |
757 | /* remove topology */ | |
758 | snd_soc_tplg_component_remove(component, SND_SOC_TPLG_INDEX_ALL); | |
759 | } | |
760 | ||
761 | void snd_sof_new_platform_drv(struct snd_sof_dev *sdev) | |
762 | { | |
763 | struct snd_soc_component_driver *pd = &sdev->plat_drv; | |
764 | struct snd_sof_pdata *plat_data = sdev->pdata; | |
765 | const char *drv_name; | |
766 | ||
767 | drv_name = plat_data->machine->drv_name; | |
768 | ||
769 | pd->name = "sof-audio-component"; | |
770 | pd->probe = sof_pcm_probe; | |
771 | pd->remove = sof_pcm_remove; | |
1c91d77e KM |
772 | pd->open = sof_pcm_open; |
773 | pd->close = sof_pcm_close; | |
774 | pd->ioctl = snd_soc_pcm_lib_ioctl; | |
775 | pd->hw_params = sof_pcm_hw_params; | |
776 | pd->prepare = sof_pcm_prepare; | |
777 | pd->hw_free = sof_pcm_hw_free; | |
778 | pd->trigger = sof_pcm_trigger; | |
779 | pd->pointer = sof_pcm_pointer; | |
1c91d77e | 780 | |
868bd00f LG |
781 | #if IS_ENABLED(CONFIG_SND_SOC_SOF_COMPRESS) |
782 | pd->compr_ops = &sof_compressed_ops; | |
783 | #endif | |
1c91d77e | 784 | pd->pcm_construct = sof_pcm_new; |
868bd00f LG |
785 | pd->ignore_machine = drv_name; |
786 | pd->be_hw_params_fixup = sof_pcm_dai_link_fixup; | |
787 | pd->be_pcm_base = SOF_BE_PCM_BASE; | |
788 | pd->use_dai_pcm_id = true; | |
789 | pd->topology_name_prefix = "sof"; | |
790 | ||
791 | /* increment module refcount when a pcm is opened */ | |
792 | pd->module_get_upon_open = 1; | |
793 | } |