1 // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
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.
6 // Copyright(c) 2018 Intel Corporation. All rights reserved.
8 // Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
10 // PCM Layer, interface between ALSA and IPC.
13 #include <linux/pm_runtime.h>
14 #include <sound/pcm_params.h>
15 #include <sound/sof.h>
19 #define DRV_NAME "sof-audio-component"
21 /* Create DMA buffer page table for DSP */
22 static int create_page_table(struct snd_pcm_substream *substream,
23 unsigned char *dma_area, size_t size)
25 struct snd_soc_pcm_runtime *rtd = substream->private_data;
26 struct snd_soc_component *component =
27 snd_soc_rtdcom_lookup(rtd, DRV_NAME);
28 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
29 struct snd_sof_pcm *spcm;
30 struct snd_dma_buffer *dmab = snd_pcm_get_dma_buf(substream);
31 int stream = substream->stream;
33 spcm = snd_sof_find_spcm_dai(sdev, rtd);
37 return snd_sof_create_page_table(sdev, dmab,
38 spcm->stream[stream].page_table.area, size);
41 static int sof_pcm_dsp_params(struct snd_sof_pcm *spcm, struct snd_pcm_substream *substream,
42 const struct sof_ipc_pcm_params_reply *reply)
44 struct snd_sof_dev *sdev = spcm->sdev;
46 int ret = snd_sof_ipc_pcm_params(sdev, substream, reply);
49 dev_err(sdev->dev, "error: got wrong reply for PCM %d\n",
56 * sof pcm period elapse work
58 static void sof_pcm_period_elapsed_work(struct work_struct *work)
60 struct snd_sof_pcm_stream *sps =
61 container_of(work, struct snd_sof_pcm_stream,
64 snd_pcm_period_elapsed(sps->substream);
68 * sof pcm period elapse, this could be called at irq thread context.
70 void snd_sof_pcm_period_elapsed(struct snd_pcm_substream *substream)
72 struct snd_soc_pcm_runtime *rtd = substream->private_data;
73 struct snd_soc_component *component =
74 snd_soc_rtdcom_lookup(rtd, DRV_NAME);
75 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
76 struct snd_sof_pcm *spcm;
78 spcm = snd_sof_find_spcm_dai(sdev, rtd);
81 "error: period elapsed for unknown stream!\n");
86 * snd_pcm_period_elapsed() can be called in interrupt context
87 * before IRQ_HANDLED is returned. Inside snd_pcm_period_elapsed(),
88 * when the PCM is done draining or xrun happened, a STOP IPC will
89 * then be sent and this IPC will hit IPC timeout.
90 * To avoid sending IPC before the previous IPC is handled, we
91 * schedule delayed work here to call the snd_pcm_period_elapsed().
93 schedule_work(&spcm->stream[substream->stream].period_elapsed_work);
95 EXPORT_SYMBOL(snd_sof_pcm_period_elapsed);
97 /* this may get called several times by oss emulation */
98 static int sof_pcm_hw_params(struct snd_pcm_substream *substream,
99 struct snd_pcm_hw_params *params)
101 struct snd_soc_pcm_runtime *rtd = substream->private_data;
102 struct snd_pcm_runtime *runtime = substream->runtime;
103 struct snd_soc_component *component =
104 snd_soc_rtdcom_lookup(rtd, DRV_NAME);
105 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
106 struct snd_sof_pcm *spcm;
107 struct sof_ipc_pcm_params pcm;
108 struct sof_ipc_pcm_params_reply ipc_params_reply;
111 /* nothing to do for BE */
112 if (rtd->dai_link->no_pcm)
115 spcm = snd_sof_find_spcm_dai(sdev, rtd);
119 dev_dbg(sdev->dev, "pcm: hw params stream %d dir %d\n",
120 spcm->pcm.pcm_id, substream->stream);
122 memset(&pcm, 0, sizeof(pcm));
124 /* allocate audio buffer pages */
125 ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
127 dev_err(sdev->dev, "error: could not allocate %d bytes for PCM %d\n",
128 params_buffer_bytes(params), spcm->pcm.pcm_id);
133 * ret == 1 means the buffer is changed
134 * create compressed page table for audio firmware
135 * ret == 0 means the buffer is not changed
136 * so no need to regenerate the page table
138 ret = create_page_table(substream, runtime->dma_area,
144 /* number of pages should be rounded up */
145 pcm.params.buffer.pages = PFN_UP(runtime->dma_bytes);
147 /* set IPC PCM parameters */
148 pcm.hdr.size = sizeof(pcm);
149 pcm.hdr.cmd = SOF_IPC_GLB_STREAM_MSG | SOF_IPC_STREAM_PCM_PARAMS;
150 pcm.comp_id = spcm->stream[substream->stream].comp_id;
151 pcm.params.hdr.size = sizeof(pcm.params);
152 pcm.params.buffer.phy_addr =
153 spcm->stream[substream->stream].page_table.addr;
154 pcm.params.buffer.size = runtime->dma_bytes;
155 pcm.params.direction = substream->stream;
156 pcm.params.sample_valid_bytes = params_width(params) >> 3;
157 pcm.params.buffer_fmt = SOF_IPC_BUFFER_INTERLEAVED;
158 pcm.params.rate = params_rate(params);
159 pcm.params.channels = params_channels(params);
160 pcm.params.host_period_bytes = params_period_bytes(params);
163 ret = snd_pcm_format_physical_width(params_format(params));
166 pcm.params.sample_container_bytes = ret >> 3;
169 switch (params_format(params)) {
170 case SNDRV_PCM_FORMAT_S16:
171 pcm.params.frame_fmt = SOF_IPC_FRAME_S16_LE;
173 case SNDRV_PCM_FORMAT_S24:
174 pcm.params.frame_fmt = SOF_IPC_FRAME_S24_4LE;
176 case SNDRV_PCM_FORMAT_S32:
177 pcm.params.frame_fmt = SOF_IPC_FRAME_S32_LE;
179 case SNDRV_PCM_FORMAT_FLOAT:
180 pcm.params.frame_fmt = SOF_IPC_FRAME_FLOAT;
186 /* firmware already configured host stream */
187 ret = snd_sof_pcm_platform_hw_params(sdev,
192 dev_err(sdev->dev, "error: platform hw params failed\n");
196 dev_dbg(sdev->dev, "stream_tag %d", pcm.params.stream_tag);
198 /* send IPC to the DSP */
199 ret = sof_ipc_tx_message(sdev->ipc, pcm.hdr.cmd, &pcm, sizeof(pcm),
200 &ipc_params_reply, sizeof(ipc_params_reply));
202 dev_err(sdev->dev, "error: hw params ipc failed for stream %d\n",
203 pcm.params.stream_tag);
207 ret = sof_pcm_dsp_params(spcm, substream, &ipc_params_reply);
211 spcm->prepared[substream->stream] = true;
213 /* save pcm hw_params */
214 memcpy(&spcm->params[substream->stream], params, sizeof(*params));
219 static int sof_pcm_dsp_pcm_free(struct snd_pcm_substream *substream,
220 struct snd_sof_dev *sdev,
221 struct snd_sof_pcm *spcm)
223 struct sof_ipc_stream stream;
224 struct sof_ipc_reply reply;
227 stream.hdr.size = sizeof(stream);
228 stream.hdr.cmd = SOF_IPC_GLB_STREAM_MSG | SOF_IPC_STREAM_PCM_FREE;
229 stream.comp_id = spcm->stream[substream->stream].comp_id;
231 /* send IPC to the DSP */
232 ret = sof_ipc_tx_message(sdev->ipc, stream.hdr.cmd, &stream,
233 sizeof(stream), &reply, sizeof(reply));
235 spcm->prepared[substream->stream] = false;
240 static int sof_pcm_hw_free(struct snd_pcm_substream *substream)
242 struct snd_soc_pcm_runtime *rtd = substream->private_data;
243 struct snd_soc_component *component =
244 snd_soc_rtdcom_lookup(rtd, DRV_NAME);
245 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
246 struct snd_sof_pcm *spcm;
249 /* nothing to do for BE */
250 if (rtd->dai_link->no_pcm)
253 spcm = snd_sof_find_spcm_dai(sdev, rtd);
257 if (!spcm->prepared[substream->stream])
260 dev_dbg(sdev->dev, "pcm: free stream %d dir %d\n", spcm->pcm.pcm_id,
263 ret = sof_pcm_dsp_pcm_free(substream, sdev, spcm);
265 snd_pcm_lib_free_pages(substream);
267 cancel_work_sync(&spcm->stream[substream->stream].period_elapsed_work);
272 ret = snd_sof_pcm_platform_hw_free(sdev, substream);
274 dev_err(sdev->dev, "error: platform hw free failed\n");
279 static int sof_pcm_prepare(struct snd_pcm_substream *substream)
281 struct snd_soc_pcm_runtime *rtd = substream->private_data;
282 struct snd_soc_component *component =
283 snd_soc_rtdcom_lookup(rtd, DRV_NAME);
284 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
285 struct snd_sof_pcm *spcm;
288 /* nothing to do for BE */
289 if (rtd->dai_link->no_pcm)
292 spcm = snd_sof_find_spcm_dai(sdev, rtd);
296 if (spcm->prepared[substream->stream])
299 dev_dbg(sdev->dev, "pcm: prepare stream %d dir %d\n", spcm->pcm.pcm_id,
303 ret = sof_pcm_hw_params(substream, &spcm->params[substream->stream]);
305 dev_err(sdev->dev, "error: set pcm hw_params after resume\n");
313 * FE dai link trigger actions are always executed in non-atomic context because
314 * they involve IPC's.
316 static int sof_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
318 struct snd_soc_pcm_runtime *rtd = substream->private_data;
319 struct snd_soc_component *component =
320 snd_soc_rtdcom_lookup(rtd, DRV_NAME);
321 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
322 struct snd_sof_pcm *spcm;
323 struct sof_ipc_stream stream;
324 struct sof_ipc_reply reply;
325 bool reset_hw_params = false;
328 /* nothing to do for BE */
329 if (rtd->dai_link->no_pcm)
332 spcm = snd_sof_find_spcm_dai(sdev, rtd);
336 dev_dbg(sdev->dev, "pcm: trigger stream %d dir %d cmd %d\n",
337 spcm->pcm.pcm_id, substream->stream, cmd);
339 stream.hdr.size = sizeof(stream);
340 stream.hdr.cmd = SOF_IPC_GLB_STREAM_MSG;
341 stream.comp_id = spcm->stream[substream->stream].comp_id;
344 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
345 stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_PAUSE;
347 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
348 stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_RELEASE;
350 case SNDRV_PCM_TRIGGER_RESUME:
351 /* set up hw_params */
352 ret = sof_pcm_prepare(substream);
355 "error: failed to set up hw_params upon resume\n");
360 case SNDRV_PCM_TRIGGER_START:
361 stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_START;
363 case SNDRV_PCM_TRIGGER_SUSPEND:
364 case SNDRV_PCM_TRIGGER_STOP:
365 stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_STOP;
366 reset_hw_params = true;
369 dev_err(sdev->dev, "error: unhandled trigger cmd %d\n", cmd);
373 snd_sof_pcm_platform_trigger(sdev, substream, cmd);
375 /* send IPC to the DSP */
376 ret = sof_ipc_tx_message(sdev->ipc, stream.hdr.cmd, &stream,
377 sizeof(stream), &reply, sizeof(reply));
379 if (!ret && reset_hw_params)
380 ret = sof_pcm_dsp_pcm_free(substream, sdev, spcm);
385 static snd_pcm_uframes_t sof_pcm_pointer(struct snd_pcm_substream *substream)
387 struct snd_soc_pcm_runtime *rtd = substream->private_data;
388 struct snd_soc_component *component =
389 snd_soc_rtdcom_lookup(rtd, DRV_NAME);
390 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
391 struct snd_sof_pcm *spcm;
392 snd_pcm_uframes_t host, dai;
394 /* nothing to do for BE */
395 if (rtd->dai_link->no_pcm)
398 /* use dsp ops pointer callback directly if set */
399 if (sof_ops(sdev)->pcm_pointer)
400 return sof_ops(sdev)->pcm_pointer(sdev, substream);
402 spcm = snd_sof_find_spcm_dai(sdev, rtd);
406 /* read position from DSP */
407 host = bytes_to_frames(substream->runtime,
408 spcm->stream[substream->stream].posn.host_posn);
409 dai = bytes_to_frames(substream->runtime,
410 spcm->stream[substream->stream].posn.dai_posn);
412 dev_dbg(sdev->dev, "PCM: stream %d dir %d DMA position %lu DAI position %lu\n",
413 spcm->pcm.pcm_id, substream->stream, host, dai);
418 static int sof_pcm_open(struct snd_pcm_substream *substream)
420 struct snd_soc_pcm_runtime *rtd = substream->private_data;
421 struct snd_pcm_runtime *runtime = substream->runtime;
422 struct snd_soc_component *component =
423 snd_soc_rtdcom_lookup(rtd, DRV_NAME);
424 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
425 struct snd_sof_pcm *spcm;
426 struct snd_soc_tplg_stream_caps *caps;
429 /* nothing to do for BE */
430 if (rtd->dai_link->no_pcm)
433 spcm = snd_sof_find_spcm_dai(sdev, rtd);
437 dev_dbg(sdev->dev, "pcm: open stream %d dir %d\n", spcm->pcm.pcm_id,
440 INIT_WORK(&spcm->stream[substream->stream].period_elapsed_work,
441 sof_pcm_period_elapsed_work);
443 caps = &spcm->pcm.caps[substream->stream];
445 /* set any runtime constraints based on topology */
446 snd_pcm_hw_constraint_step(substream->runtime, 0,
447 SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
448 le32_to_cpu(caps->period_size_min));
449 snd_pcm_hw_constraint_step(substream->runtime, 0,
450 SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
451 le32_to_cpu(caps->period_size_min));
453 /* set runtime config */
454 runtime->hw.info = SNDRV_PCM_INFO_MMAP |
455 SNDRV_PCM_INFO_MMAP_VALID |
456 SNDRV_PCM_INFO_INTERLEAVED |
457 SNDRV_PCM_INFO_PAUSE |
458 SNDRV_PCM_INFO_NO_PERIOD_WAKEUP;
459 runtime->hw.formats = le64_to_cpu(caps->formats);
460 runtime->hw.period_bytes_min = le32_to_cpu(caps->period_size_min);
461 runtime->hw.period_bytes_max = le32_to_cpu(caps->period_size_max);
462 runtime->hw.periods_min = le32_to_cpu(caps->periods_min);
463 runtime->hw.periods_max = le32_to_cpu(caps->periods_max);
466 * caps->buffer_size_min is not used since the
467 * snd_pcm_hardware structure only defines buffer_bytes_max
469 runtime->hw.buffer_bytes_max = le32_to_cpu(caps->buffer_size_max);
471 dev_dbg(sdev->dev, "period min %zd max %zd bytes\n",
472 runtime->hw.period_bytes_min,
473 runtime->hw.period_bytes_max);
474 dev_dbg(sdev->dev, "period count %d max %d\n",
475 runtime->hw.periods_min,
476 runtime->hw.periods_max);
477 dev_dbg(sdev->dev, "buffer max %zd bytes\n",
478 runtime->hw.buffer_bytes_max);
480 /* set wait time - TODO: come from topology */
481 substream->wait_time = 500;
483 spcm->stream[substream->stream].posn.host_posn = 0;
484 spcm->stream[substream->stream].posn.dai_posn = 0;
485 spcm->stream[substream->stream].substream = substream;
486 spcm->prepared[substream->stream] = false;
488 ret = snd_sof_pcm_platform_open(sdev, substream);
490 dev_err(sdev->dev, "error: pcm open failed %d\n", ret);
495 static int sof_pcm_close(struct snd_pcm_substream *substream)
497 struct snd_soc_pcm_runtime *rtd = substream->private_data;
498 struct snd_soc_component *component =
499 snd_soc_rtdcom_lookup(rtd, DRV_NAME);
500 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
501 struct snd_sof_pcm *spcm;
504 /* nothing to do for BE */
505 if (rtd->dai_link->no_pcm)
508 spcm = snd_sof_find_spcm_dai(sdev, rtd);
512 dev_dbg(sdev->dev, "pcm: close stream %d dir %d\n", spcm->pcm.pcm_id,
515 err = snd_sof_pcm_platform_close(sdev, substream);
517 dev_err(sdev->dev, "error: pcm close failed %d\n",
520 * keep going, no point in preventing the close
528 static struct snd_pcm_ops sof_pcm_ops = {
529 .open = sof_pcm_open,
530 .close = sof_pcm_close,
531 .ioctl = snd_pcm_lib_ioctl,
532 .hw_params = sof_pcm_hw_params,
533 .prepare = sof_pcm_prepare,
534 .hw_free = sof_pcm_hw_free,
535 .trigger = sof_pcm_trigger,
536 .pointer = sof_pcm_pointer,
537 .page = snd_pcm_sgbuf_ops_page,
541 * Pre-allocate playback/capture audio buffer pages.
542 * no need to explicitly release memory preallocated by sof_pcm_new in pcm_free
543 * snd_pcm_lib_preallocate_free_for_all() is called by the core.
545 static int sof_pcm_new(struct snd_soc_pcm_runtime *rtd)
547 struct snd_soc_component *component =
548 snd_soc_rtdcom_lookup(rtd, DRV_NAME);
549 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
550 struct snd_sof_pcm *spcm;
551 struct snd_pcm *pcm = rtd->pcm;
552 struct snd_soc_tplg_stream_caps *caps;
553 int stream = SNDRV_PCM_STREAM_PLAYBACK;
555 /* find SOF PCM for this RTD */
556 spcm = snd_sof_find_spcm_dai(sdev, rtd);
558 dev_warn(sdev->dev, "warn: can't find PCM with DAI ID %d\n",
563 dev_dbg(sdev->dev, "creating new PCM %s\n", spcm->pcm.pcm_name);
565 /* do we need to pre-allocate playback audio buffer pages */
566 if (!spcm->pcm.playback)
569 caps = &spcm->pcm.caps[stream];
571 /* pre-allocate playback audio buffer pages */
572 dev_dbg(sdev->dev, "spcm: allocate %s playback DMA buffer size 0x%x max 0x%x\n",
573 caps->name, caps->buffer_size_min, caps->buffer_size_max);
575 snd_pcm_lib_preallocate_pages(pcm->streams[stream].substream,
576 SNDRV_DMA_TYPE_DEV_SG, sdev->dev,
577 le32_to_cpu(caps->buffer_size_min),
578 le32_to_cpu(caps->buffer_size_max));
580 stream = SNDRV_PCM_STREAM_CAPTURE;
582 /* do we need to pre-allocate capture audio buffer pages */
583 if (!spcm->pcm.capture)
586 caps = &spcm->pcm.caps[stream];
588 /* pre-allocate capture audio buffer pages */
589 dev_dbg(sdev->dev, "spcm: allocate %s capture DMA buffer size 0x%x max 0x%x\n",
590 caps->name, caps->buffer_size_min, caps->buffer_size_max);
592 snd_pcm_lib_preallocate_pages(pcm->streams[stream].substream,
593 SNDRV_DMA_TYPE_DEV_SG, sdev->dev,
594 le32_to_cpu(caps->buffer_size_min),
595 le32_to_cpu(caps->buffer_size_max));
600 /* fixup the BE DAI link to match any values from topology */
601 static int sof_pcm_dai_link_fixup(struct snd_soc_pcm_runtime *rtd,
602 struct snd_pcm_hw_params *params)
604 struct snd_interval *rate = hw_param_interval(params,
605 SNDRV_PCM_HW_PARAM_RATE);
606 struct snd_interval *channels = hw_param_interval(params,
607 SNDRV_PCM_HW_PARAM_CHANNELS);
608 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
609 struct snd_soc_component *component =
610 snd_soc_rtdcom_lookup(rtd, DRV_NAME);
611 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
612 struct snd_sof_dai *dai =
613 snd_sof_find_dai(sdev, (char *)rtd->dai_link->name);
615 /* no topology exists for this BE, try a common configuration */
617 dev_warn(sdev->dev, "warning: no topology found for BE DAI %s config\n",
618 rtd->dai_link->name);
620 /* set 48k, stereo, 16bits by default */
628 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE);
633 /* read format from topology */
636 switch (dai->comp_dai.config.frame_fmt) {
637 case SOF_IPC_FRAME_S16_LE:
638 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE);
640 case SOF_IPC_FRAME_S24_4LE:
641 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
643 case SOF_IPC_FRAME_S32_LE:
644 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S32_LE);
647 dev_err(sdev->dev, "error: No available DAI format!\n");
651 /* read rate and channels from topology */
652 switch (dai->dai_config->type) {
653 case SOF_DAI_INTEL_SSP:
654 rate->min = dai->dai_config->ssp.fsync_rate;
655 rate->max = dai->dai_config->ssp.fsync_rate;
656 channels->min = dai->dai_config->ssp.tdm_slots;
657 channels->max = dai->dai_config->ssp.tdm_slots;
660 "rate_min: %d rate_max: %d\n", rate->min, rate->max);
662 "channels_min: %d channels_max: %d\n",
663 channels->min, channels->max);
666 case SOF_DAI_INTEL_DMIC:
667 /* DMIC only supports 16 or 32 bit formats */
668 if (dai->comp_dai.config.frame_fmt == SOF_IPC_FRAME_S24_4LE) {
670 "error: invalid fmt %d for DAI type %d\n",
671 dai->comp_dai.config.frame_fmt,
672 dai->dai_config->type);
675 case SOF_DAI_INTEL_HDA:
676 /* do nothing for HDA dai_link */
679 dev_err(sdev->dev, "error: invalid DAI type %d\n",
680 dai->dai_config->type);
687 static int sof_pcm_probe(struct snd_soc_component *component)
689 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
690 struct snd_sof_pdata *plat_data = sdev->pdata;
691 const char *tplg_filename;
694 /* load the default topology */
695 sdev->component = component;
697 tplg_filename = devm_kasprintf(sdev->dev, GFP_KERNEL,
699 plat_data->tplg_filename_prefix,
700 plat_data->tplg_filename);
704 ret = snd_sof_load_topology(sdev, tplg_filename);
706 dev_err(sdev->dev, "error: failed to load DSP topology %d\n",
712 * Some platforms in SOF, ex: BYT, may not have their platform PM
713 * callbacks set. Increment the usage count so as to
714 * prevent the device from entering runtime suspend.
716 if (!sof_ops(sdev)->runtime_suspend || !sof_ops(sdev)->runtime_resume)
717 pm_runtime_get_noresume(sdev->dev);
722 static void sof_pcm_remove(struct snd_soc_component *component)
724 /* remove topology */
725 snd_soc_tplg_component_remove(component, SND_SOC_TPLG_INDEX_ALL);
728 void snd_sof_new_platform_drv(struct snd_sof_dev *sdev)
730 struct snd_soc_component_driver *pd = &sdev->plat_drv;
731 struct snd_sof_pdata *plat_data = sdev->pdata;
732 const char *drv_name;
734 drv_name = plat_data->machine->drv_name;
736 pd->name = "sof-audio-component";
737 pd->probe = sof_pcm_probe;
738 pd->remove = sof_pcm_remove;
739 pd->ops = &sof_pcm_ops;
740 #if IS_ENABLED(CONFIG_SND_SOC_SOF_COMPRESS)
741 pd->compr_ops = &sof_compressed_ops;
743 pd->pcm_new = sof_pcm_new;
744 pd->ignore_machine = drv_name;
745 pd->be_hw_params_fixup = sof_pcm_dai_link_fixup;
746 pd->be_pcm_base = SOF_BE_PCM_BASE;
747 pd->use_dai_pcm_id = true;
748 pd->topology_name_prefix = "sof";
750 /* increment module refcount when a pcm is opened */
751 pd->module_get_upon_open = 1;