C++ (Cpp) saudio_cmd_prepare_process Exemples

Exemple #1

Fichier : saudio.c Projet : dhs-shine/sprd_project

static int snd_card_saudio_pcm_prepare(struct snd_pcm_substream *substream)
{
	const struct snd_saudio *saudio = snd_pcm_substream_chip(substream);
	const int stream_id = substream->pstr->stream;
	const int dev = substream->pcm->device;
	struct saudio_dev_ctrl *dev_ctrl = NULL;
	struct saudio_msg msg = { 0 };
	int result = 0;

	ADEBUG();
	mutex_lock(&saudio->mutex);
	if(!saudio->state) {
		mutex_unlock(&saudio->mutex);
		printk("saudio.c: snd_pcm_prepare error saudio state %d\n",saudio->state);
		return -EIO;
	}
	mutex_unlock(&saudio->mutex);
	pr_info("%s IN, stream_id=%d\n", __func__, stream_id);
	dev_ctrl = (struct saudio_dev_ctrl *)&(saudio->dev_ctrl[dev]);
	msg.command = SAUDIO_CMD_PREPARE;
	msg.stream_id = stream_id;

	result = saudio_cmd_prepare_process(dev_ctrl, &msg);
	pr_info("%s OUT, result=%d\n", __func__, result);

	return 0;
}

Exemple #2

static int snd_card_saudio_pcm_prepare(struct snd_pcm_substream *substream)
{
	const struct snd_saudio *saudio = snd_pcm_substream_chip(substream);
	const int stream_id = substream->pstr->stream;
	const int dev = substream->pcm->device;
	struct saudio_dev_ctrl *dev_ctrl = NULL;
	struct saudio_msg msg = { 0 };
	int result = 0;

	ADEBUG();
	
	dev_ctrl = (struct saudio_dev_ctrl *)&(saudio->dev_ctrl[dev]);
	msg.command = SAUDIO_CMD_PREPARE;
	msg.stream_id = stream_id;

	result = saudio_cmd_prepare_process(dev_ctrl, &msg);
	

	return 0;
}