C++ (Cpp) snd_soc_runtime_activate Examples

Example #1

File: soc-compress.c Project: mdamt/linux

static int soc_compr_open(struct snd_compr_stream *cstream)
{
	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
	struct snd_soc_platform *platform = rtd->platform;
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	int ret = 0;

	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);

	if (cpu_dai->driver->cops && cpu_dai->driver->cops->startup) {
		ret = cpu_dai->driver->cops->startup(cstream, cpu_dai);
		if (ret < 0) {
			dev_err(cpu_dai->dev, "Compress ASoC: can't open interface %s: %d\n",
				cpu_dai->name, ret);
			goto out;
		}
	}

	if (platform->driver->compr_ops && platform->driver->compr_ops->open) {
		ret = platform->driver->compr_ops->open(cstream);
		if (ret < 0) {
			pr_err("compress asoc: can't open platform %s\n",
				platform->component.name);
			goto plat_err;
		}
	}

	if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->startup) {
		ret = rtd->dai_link->compr_ops->startup(cstream);
		if (ret < 0) {
			pr_err("compress asoc: %s startup failed\n", rtd->dai_link->name);
			goto machine_err;
		}
	}

	snd_soc_runtime_activate(rtd, cstream->direction);

	mutex_unlock(&rtd->pcm_mutex);

	return 0;

machine_err:
	if (platform->driver->compr_ops && platform->driver->compr_ops->free)
		platform->driver->compr_ops->free(cstream);
plat_err:
	if (cpu_dai->driver->cops && cpu_dai->driver->cops->shutdown)
		cpu_dai->driver->cops->shutdown(cstream, cpu_dai);
out:
	mutex_unlock(&rtd->pcm_mutex);
	return ret;
}

Example #2

File: soc-compress.c Project: Chong-Li/cse522

static int soc_compr_open_fe(struct snd_compr_stream *cstream)
{
	struct snd_soc_pcm_runtime *fe = cstream->private_data;
	struct snd_pcm_substream *fe_substream = fe->pcm->streams[0].substream;
	struct snd_soc_platform *platform = fe->platform;
	struct snd_soc_dpcm *dpcm;
	struct snd_soc_dapm_widget_list *list;
	int stream;
	int ret = 0;

	if (cstream->direction == SND_COMPRESS_PLAYBACK)
		stream = SNDRV_PCM_STREAM_PLAYBACK;
	else
		stream = SNDRV_PCM_STREAM_CAPTURE;

	mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME);

	if (platform->driver->compr_ops && platform->driver->compr_ops->open) {
		ret = platform->driver->compr_ops->open(cstream);
		if (ret < 0) {
			pr_err("compress asoc: can't open platform %s\n",
				platform->component.name);
			goto out;
		}
	}

	if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->startup) {
		ret = fe->dai_link->compr_ops->startup(cstream);
		if (ret < 0) {
			pr_err("compress asoc: %s startup failed\n", fe->dai_link->name);
			goto machine_err;
		}
	}

	fe->dpcm[stream].runtime = fe_substream->runtime;

	ret = dpcm_path_get(fe, stream, &list);
	if (ret < 0)
		goto fe_err;
	else if (ret == 0)
		dev_dbg(fe->dev, "ASoC: %s no valid %s route\n",
			fe->dai_link->name, stream ? "capture" : "playback");

	/* calculate valid and active FE <-> BE dpcms */
	dpcm_process_paths(fe, stream, &list, 1);

	fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;

	ret = dpcm_be_dai_startup(fe, stream);
	if (ret < 0) {
		/* clean up all links */
		list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be)
			dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;

		dpcm_be_disconnect(fe, stream);
		fe->dpcm[stream].runtime = NULL;
		goto fe_err;
	}

	dpcm_clear_pending_state(fe, stream);
	dpcm_path_put(&list);

	fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN;
	fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;

	snd_soc_runtime_activate(fe, stream);

	mutex_unlock(&fe->card->mutex);

	return 0;

fe_err:
	if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown)
		fe->dai_link->compr_ops->shutdown(cstream);
machine_err:
	if (platform->driver->compr_ops && platform->driver->compr_ops->free)
		platform->driver->compr_ops->free(cstream);
out:
	fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;
	mutex_unlock(&fe->card->mutex);
	return ret;
}