1 // SPDX-License-Identifier: GPL-2.0+
3 // soc-compress.c  --  ALSA SoC Compress
21 #include <sound/soc-dpcm.h>
22 #include <sound/soc-link.h>
26 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;  in snd_soc_compr_components_open()
47 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;  in snd_soc_compr_components_free()
59 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;  in soc_compr_clean()
62 	int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */  in soc_compr_clean()
72 		cpu_dai->symmetric_rate = 0;  in soc_compr_clean()
75 		codec_dai->symmetric_rate = 0;  in soc_compr_clean()
100 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;  in soc_compr_open()
102 	int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */  in soc_compr_open()
135 	struct snd_soc_pcm_runtime *fe = cstream->private_data;  in soc_compr_open_fe()
139 	int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */  in soc_compr_open_fe()
142 	snd_soc_card_mutex_lock(fe->card);  in soc_compr_open_fe()
150 	/* calculate valid and active FE <-> BE dpcms */  in soc_compr_open_fe()
153 	fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;  in soc_compr_open_fe()
159 			dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;  in soc_compr_open_fe()
180 	fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN;  in soc_compr_open_fe()
181 	fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;  in soc_compr_open_fe()
186 	snd_soc_card_mutex_unlock(fe->card);  in soc_compr_open_fe()
198 	fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;  in soc_compr_open_fe()
199 	snd_soc_card_mutex_unlock(fe->card);  in soc_compr_open_fe()
205 	struct snd_soc_pcm_runtime *fe = cstream->private_data;  in soc_compr_free_fe()
208 	int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */  in soc_compr_free_fe()
210 	snd_soc_card_mutex_lock(fe->card);  in soc_compr_free_fe()
215 	fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;  in soc_compr_free_fe()
223 		dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;  in soc_compr_free_fe()
227 	fe->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE;  in soc_compr_free_fe()
228 	fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;  in soc_compr_free_fe()
240 	snd_soc_card_mutex_unlock(fe->card);  in soc_compr_free_fe()
246 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;  in soc_compr_trigger()
249 	int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */  in soc_compr_trigger()
278 	struct snd_soc_pcm_runtime *fe = cstream->private_data;  in soc_compr_trigger_fe()
280 	int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */  in soc_compr_trigger_fe()
287 	snd_soc_card_mutex_lock(fe->card);  in soc_compr_trigger_fe()
297 	fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;  in soc_compr_trigger_fe()
305 		fe->dpcm[stream].state = SND_SOC_DPCM_STATE_START;  in soc_compr_trigger_fe()
309 		fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP;  in soc_compr_trigger_fe()
312 		fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED;  in soc_compr_trigger_fe()
317 	fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;  in soc_compr_trigger_fe()
318 	snd_soc_card_mutex_unlock(fe->card);  in soc_compr_trigger_fe()
325 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;  in soc_compr_set_params()
327 	int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */  in soc_compr_set_params()
333 	 * First we call set_params for the CPU DAI, then the component  in soc_compr_set_params()
335 	 * compressed ops then we call that as well. The expectation is  in soc_compr_set_params()
336 	 * that these callbacks will configure everything for this compress  in soc_compr_set_params()
353 	/* cancel any delayed stream shutdown that is pending */  in soc_compr_set_params()
354 	rtd->pop_wait = 0;  in soc_compr_set_params()
357 	cancel_delayed_work_sync(&rtd->delayed_work);  in soc_compr_set_params()
369 	struct snd_soc_pcm_runtime *fe = cstream->private_data;  in soc_compr_set_params_fe()
371 		 fe->pcm->streams[cstream->direction].substream;  in soc_compr_set_params_fe()
373 	int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */  in soc_compr_set_params_fe()
376 	snd_soc_card_mutex_lock(fe->card);  in soc_compr_set_params_fe()
381 	 * I.e. machine driver fixup for compressed BE is mandatory.  in soc_compr_set_params_fe()
383 	memset(&fe->dpcm[fe_substream->stream].hw_params, 0,  in soc_compr_set_params_fe()
386 	fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;  in soc_compr_set_params_fe()
414 	fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE;  in soc_compr_set_params_fe()
417 	fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;  in soc_compr_set_params_fe()
418 	snd_soc_card_mutex_unlock(fe->card);  in soc_compr_set_params_fe()
425 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;  in soc_compr_get_params()
443 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;  in soc_compr_ack()
462 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;  in soc_compr_pointer()
481 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;  in soc_compr_set_metadata()
495 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;  in soc_compr_get_metadata()
506 /* ASoC Compress operations */
521 /* ASoC Dynamic Compress operations */
537  * snd_soc_new_compress - create a new compress.
539  * @rtd: The runtime for which we will create compress
562 	if (rtd->dai_link->num_cpus > 1 ||  in snd_soc_new_compress()
563 	    rtd->dai_link->num_codecs > 1) {  in snd_soc_new_compress()
564 		dev_err(rtd->card->dev,  in snd_soc_new_compress()
565 			"Compress ASoC: Multi CPU/Codec not supported\n");  in snd_soc_new_compress()
566 		return -EINVAL;  in snd_soc_new_compress()
570 		dev_err(rtd->card->dev, "Missing codec\n");  in snd_soc_new_compress()
571 		return -EINVAL;  in snd_soc_new_compress()
583 	 * Compress devices are unidirectional so only one of the directions  in snd_soc_new_compress()
587 		dev_err(rtd->card->dev,  in snd_soc_new_compress()
588 			"Compress ASoC: Invalid direction for P %d, C %d\n",  in snd_soc_new_compress()
590 		return -EINVAL;  in snd_soc_new_compress()
598 	compr = devm_kzalloc(rtd->card->dev, sizeof(*compr), GFP_KERNEL);  in snd_soc_new_compress()
600 		return -ENOMEM;  in snd_soc_new_compress()
602 	compr->ops = devm_kzalloc(rtd->card->dev, sizeof(soc_compr_ops),  in snd_soc_new_compress()
604 	if (!compr->ops)  in snd_soc_new_compress()
605 		return -ENOMEM;  in snd_soc_new_compress()
607 	if (rtd->dai_link->dynamic) {  in snd_soc_new_compress()
611 		if (rtd->dai_link->capture_only)  in snd_soc_new_compress()
613 		if (rtd->dai_link->playback_only)  in snd_soc_new_compress()
617 			rtd->dai_link->stream_name);  in snd_soc_new_compress()
619 		ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, rtd->id,  in snd_soc_new_compress()
622 			dev_err(rtd->card->dev,  in snd_soc_new_compress()
623 				"Compress ASoC: can't create compressed for %s: %d\n",  in snd_soc_new_compress()
624 				rtd->dai_link->name, ret);  in snd_soc_new_compress()
628 		/* inherit atomicity from DAI link */  in snd_soc_new_compress()
629 		be_pcm->nonatomic = rtd->dai_link->nonatomic;  in snd_soc_new_compress()
631 		rtd->pcm = be_pcm;  in snd_soc_new_compress()
632 		rtd->fe_compr = 1;  in snd_soc_new_compress()
634 			be_pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd;  in snd_soc_new_compress()
636 			be_pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->private_data = rtd;  in snd_soc_new_compress()
637 		memcpy(compr->ops, &soc_compr_dyn_ops, sizeof(soc_compr_dyn_ops));  in snd_soc_new_compress()
639 		snprintf(new_name, sizeof(new_name), "%s %s-%d",  in snd_soc_new_compress()
640 			rtd->dai_link->stream_name, codec_dai->name, rtd->id);  in snd_soc_new_compress()
642 		memcpy(compr->ops, &soc_compr_ops, sizeof(soc_compr_ops));  in snd_soc_new_compress()
646 		if (!component->driver->compress_ops ||  in snd_soc_new_compress()
647 		    !component->driver->compress_ops->copy)  in snd_soc_new_compress()
650 		compr->ops->copy = snd_soc_component_compr_copy;  in snd_soc_new_compress()
654 	ret = snd_compress_new(rtd->card->snd_card, rtd->id, direction,  in snd_soc_new_compress()
657 		component = snd_soc_rtd_to_codec(rtd, 0)->component;  in snd_soc_new_compress()
658 		dev_err(component->dev,  in snd_soc_new_compress()
659 			"Compress ASoC: can't create compress for codec %s: %d\n",  in snd_soc_new_compress()
660 			component->name, ret);  in snd_soc_new_compress()
664 	/* DAPM dai link stream work */  in snd_soc_new_compress()
665 	rtd->close_delayed_work_func = snd_soc_close_delayed_work;  in snd_soc_new_compress()
667 	rtd->compr = compr;  in snd_soc_new_compress()
668 	compr->private_data = rtd;  in snd_soc_new_compress()
670 	dev_dbg(rtd->card->dev, "Compress ASoC: %s <-> %s mapping ok\n",  in snd_soc_new_compress()
671 		codec_dai->name, cpu_dai->name);  in snd_soc_new_compress()