Exemplos de edma_pause em C++ (Cpp)

Exemplo n.º 1

Arquivo: davinci-pcm.c Projeto: 454053205/linux

static int davinci_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
{
	struct davinci_runtime_data *prtd = substream->runtime->private_data;
	int ret = 0;

	spin_lock(&prtd->lock);

	switch (cmd) {
	case SNDRV_PCM_TRIGGER_START:
		edma_start(prtd->asp_channel);
		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
		    prtd->ram_channel >= 0) {
			/* copy 1st iram buffer */
			edma_start(prtd->ram_channel);
		}
		break;
	case SNDRV_PCM_TRIGGER_RESUME:
	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
		edma_resume(prtd->asp_channel);
		break;
	case SNDRV_PCM_TRIGGER_STOP:
	case SNDRV_PCM_TRIGGER_SUSPEND:
	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
		edma_pause(prtd->asp_channel);
		break;
	default:
		ret = -EINVAL;
		break;
	}

	spin_unlock(&prtd->lock);

	return ret;
}

Exemplo n.º 2

Arquivo: davinci-pcm.c Projeto: 3sOx/asuswrt-merlin

static int davinci_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
{
	struct davinci_runtime_data *prtd = substream->runtime->private_data;
	int ret = 0;

	spin_lock(&prtd->lock);

	switch (cmd) {
	case SNDRV_PCM_TRIGGER_START:
	case SNDRV_PCM_TRIGGER_RESUME:
	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
		edma_resume(prtd->asp_channel);
		break;
	case SNDRV_PCM_TRIGGER_STOP:
	case SNDRV_PCM_TRIGGER_SUSPEND:
	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
		edma_pause(prtd->asp_channel);
		break;
	default:
		ret = -EINVAL;
		break;
	}

	spin_unlock(&prtd->lock);

	return ret;
}