コード例 #1
0
ファイル: soc-compress.c プロジェクト: mdamt/linux
static int soc_compr_free_fe(struct snd_compr_stream *cstream)
{
	struct snd_soc_pcm_runtime *fe = cstream->private_data;
	struct snd_soc_platform *platform = fe->platform;
	struct snd_soc_dai *cpu_dai = fe->cpu_dai;
	struct snd_soc_dpcm *dpcm;
	int stream, ret;

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

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

	snd_soc_runtime_deactivate(fe, stream);

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

	ret = dpcm_be_dai_hw_free(fe, stream);
	if (ret < 0)
		dev_err(fe->dev, "compressed hw_free failed %d\n", ret);

	ret = dpcm_be_dai_shutdown(fe, stream);

	/* mark FE's links ready to prune */
	list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be)
		dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;

	dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP);

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

	dpcm_be_disconnect(fe, stream);

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

	if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown)
		fe->dai_link->compr_ops->shutdown(cstream);

	if (platform->driver->compr_ops && platform->driver->compr_ops->free)
		platform->driver->compr_ops->free(cstream);

	if (cpu_dai->driver->cops && cpu_dai->driver->cops->shutdown)
		cpu_dai->driver->cops->shutdown(cstream, cpu_dai);

	mutex_unlock(&fe->card->mutex);
	return 0;
}
コード例 #2
0
ファイル: soc-compress.c プロジェクト: mostafa-z/gabriel5v6
static int soc_compr_free_fe(struct snd_compr_stream *cstream)
{
	struct snd_soc_pcm_runtime *fe = cstream->private_data;
	struct snd_soc_platform *platform = fe->platform;
	struct snd_soc_dpcm_params *dpcm;
	int stream, ret;

	struct snd_soc_dai *cpu_dai = fe->cpu_dai;
	struct snd_soc_dai *codec_dai = fe->codec_dai;
	struct snd_soc_codec *codec = fe->codec;

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

	mutex_lock(&fe->card->dpcm_mutex);
	if (cstream->direction == SND_COMPRESS_PLAYBACK) {
		cpu_dai->playback_active--;
		codec_dai->playback_active--;
		snd_soc_dai_digital_mute(codec_dai, 1);
	} else {
		cpu_dai->capture_active--;
		codec_dai->capture_active--;
	}

	cpu_dai->active--;
	codec_dai->active--;
	codec->active--;

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

	ret = dpcm_be_dai_hw_free(fe, stream);
	if (ret < 0)
		dev_err(fe->dev, "compressed hw_free failed %d\n", ret);

	ret = dpcm_be_dai_shutdown(fe, stream);

	/* mark FE's links ready to prune */
	list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be)
		dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;

	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
		dpcm_dapm_stream_event(fe, stream,
				fe->cpu_dai->driver->playback.stream_name,
				SND_SOC_DAPM_STREAM_STOP);
	else
		dpcm_dapm_stream_event(fe, stream,
				fe->cpu_dai->driver->capture.stream_name,
				SND_SOC_DAPM_STREAM_STOP);

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

	dpcm_be_disconnect(fe, stream);

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

	if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown)
		fe->dai_link->compr_ops->shutdown(cstream);

	if (platform->driver->compr_ops && platform->driver->compr_ops->free)
		platform->driver->compr_ops->free(cstream);
	//cpu_dai->runtime = NULL;

	mutex_unlock(&fe->card->dpcm_mutex);
	return 0;
}