C++ (Cpp) sst_get_stream_status示例

示例#1

文件： sst_platform.c 项目： 33d/linux-2.6.21-hh20

static void sst_period_elapsed(void *mad_substream)
{
	struct snd_pcm_substream *substream = mad_substream;
	struct sst_runtime_stream *stream;
	int status;

	if (!substream || !substream->runtime)
		return;
	stream = substream->runtime->private_data;
	if (!stream)
		return;
	status = sst_get_stream_status(stream);
	if (status != SST_PLATFORM_RUNNING)
		return;
	snd_pcm_period_elapsed(substream);
}

示例#2

文件： sst_platform.c 项目： 33d/linux-2.6.21-hh20

static snd_pcm_uframes_t sst_platform_pcm_pointer
			(struct snd_pcm_substream *substream)
{
	struct sst_runtime_stream *stream;
	int ret_val, status;
	struct pcm_stream_info *str_info;

	stream = substream->runtime->private_data;
	status = sst_get_stream_status(stream);
	if (status == SST_PLATFORM_INIT)
		return 0;
	str_info = &stream->stream_info;
	ret_val = stream->ops->device_control(
				SST_SND_BUFFER_POINTER, str_info);
	if (ret_val) {
		pr_err("sst: error code = %d\n", ret_val);
		return ret_val;
	}
	return stream->stream_info.buffer_ptr;
}

示例#3

文件： sst-mfld-platform-pcm.c 项目： 383530895/linux

static snd_pcm_uframes_t sst_platform_pcm_pointer
			(struct snd_pcm_substream *substream)
{
	struct sst_runtime_stream *stream;
	int ret_val, status;
	struct pcm_stream_info *str_info;
	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	stream = substream->runtime->private_data;
	status = sst_get_stream_status(stream);
	if (status == SST_PLATFORM_INIT)
		return 0;
	str_info = &stream->stream_info;
	ret_val = stream->ops->stream_read_tstamp(sst->dev, str_info);
	if (ret_val) {
		dev_err(rtd->dev, "sst: error code = %d\n", ret_val);
		return ret_val;
	}
	substream->runtime->delay = str_info->pcm_delay;
	return str_info->buffer_ptr;
}

示例#4

文件： pcm.c 项目： ratsbu11/android_kernel_asus_zenfone5

static void sst_period_elapsed(void *mad_substream)
{
	struct snd_pcm_substream *substream = mad_substream;
	struct sst_runtime_stream *stream;
	int status;

	if (!substream || !substream->runtime) {
		pr_debug("In %s : Null Substream pointer\n", __func__);
		return;
	}
	stream = substream->runtime->private_data;
	if (!stream) {
		pr_debug("In %s : Null Stream pointer\n", __func__);
		return;
	}
	status = sst_get_stream_status(stream);
	if (status != SST_PLATFORM_RUNNING) {
		pr_debug("In %s : Stream Status=%d\n", __func__, status);
		return;
	}
	snd_pcm_period_elapsed(substream);
}