C++ (Cpp) loopback_pos_update Examples

Example #1

File: aloop.c Project: mjduddin/B14CKB1RD_kernel_m8

static snd_pcm_uframes_t loopback_pointer(struct snd_pcm_substream *substream)
{
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct loopback_pcm *dpcm = runtime->private_data;

	loopback_pos_update(dpcm->cable);
	return bytes_to_frames(runtime, dpcm->buf_pos);
}

Example #2

File: aloop.c Project: 3null/linux

static snd_pcm_uframes_t loopback_pointer(struct snd_pcm_substream *substream)
{
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct loopback_pcm *dpcm = runtime->private_data;
	snd_pcm_uframes_t pos;

	spin_lock(&dpcm->cable->lock);
	loopback_pos_update(dpcm->cable);
	pos = dpcm->buf_pos;
	spin_unlock(&dpcm->cable->lock);
	return bytes_to_frames(runtime, pos);
}

Example #3

File: aloop.c Project: mjduddin/B14CKB1RD_kernel_m8

static void loopback_timer_function(unsigned long data)
{
	struct loopback_pcm *dpcm = (struct loopback_pcm *)data;
	unsigned int running;

	running = loopback_pos_update(dpcm->cable);
	if (running & (1 << dpcm->substream->stream)) {
		loopback_timer_start(dpcm);
		if (dpcm->period_update_pending) {
			dpcm->period_update_pending = 0;
			snd_pcm_period_elapsed(dpcm->substream);
		}
	}
}

Example #4

File: aloop.c Project: 3null/linux

static void loopback_timer_function(unsigned long data)
{
	struct loopback_pcm *dpcm = (struct loopback_pcm *)data;
	unsigned long flags;

	spin_lock_irqsave(&dpcm->cable->lock, flags);
	if (loopback_pos_update(dpcm->cable) & (1 << dpcm->substream->stream)) {
		loopback_timer_start(dpcm);
		if (dpcm->period_update_pending) {
			dpcm->period_update_pending = 0;
			spin_unlock_irqrestore(&dpcm->cable->lock, flags);
			/* need to unlock before calling below */
			snd_pcm_period_elapsed(dpcm->substream);
			return;
		}
	}
	spin_unlock_irqrestore(&dpcm->cable->lock, flags);
}