diff options
Diffstat (limited to 'sound/firewire/motu/motu-pcm.c')
| -rw-r--r-- | sound/firewire/motu/motu-pcm.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/sound/firewire/motu/motu-pcm.c b/sound/firewire/motu/motu-pcm.c index 7bbf8b86a33d..00e693da0cad 100644 --- a/sound/firewire/motu/motu-pcm.c +++ b/sound/firewire/motu/motu-pcm.c @@ -162,6 +162,7 @@ static int pcm_open(struct snd_pcm_substream *substream) if (src != SND_MOTU_CLOCK_SOURCE_INTERNAL || (motu->substreams_counter > 0 && d->events_per_period > 0)) { unsigned int frames_per_period = d->events_per_period; + unsigned int frames_per_buffer = d->events_per_buffer; unsigned int rate; err = protocol->get_clock_rate(motu, &rate); @@ -179,6 +180,14 @@ static int pcm_open(struct snd_pcm_substream *substream) mutex_unlock(&motu->mutex); goto err_locked; } + + err = snd_pcm_hw_constraint_minmax(substream->runtime, + SNDRV_PCM_HW_PARAM_BUFFER_SIZE, + frames_per_buffer, frames_per_buffer); + if (err < 0) { + mutex_unlock(&motu->mutex); + goto err_locked; + } } } @@ -216,10 +225,11 @@ static int pcm_hw_params(struct snd_pcm_substream *substream, if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) { unsigned int rate = params_rate(hw_params); unsigned int frames_per_period = params_period_size(hw_params); + unsigned int frames_per_buffer = params_buffer_size(hw_params); mutex_lock(&motu->mutex); err = snd_motu_stream_reserve_duplex(motu, rate, - frames_per_period); + frames_per_period, frames_per_buffer); if (err >= 0) ++motu->substreams_counter; mutex_unlock(&motu->mutex); |