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);
}
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;
}
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;
}
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);
}