diff options
Diffstat (limited to 'sound/firewire/fireworks/fireworks_pcm.c')
| -rw-r--r-- | sound/firewire/fireworks/fireworks_pcm.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/sound/firewire/fireworks/fireworks_pcm.c b/sound/firewire/fireworks/fireworks_pcm.c index 314d1f8b8344..abcc53dac8a5 100644 --- a/sound/firewire/fireworks/fireworks_pcm.c +++ b/sound/firewire/fireworks/fireworks_pcm.c @@ -197,6 +197,7 @@ static int pcm_open(struct snd_pcm_substream *substream) if ((clock_source != SND_EFW_CLOCK_SOURCE_INTERNAL) || (efw->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 sampling_rate; err = snd_efw_command_get_sampling_rate(efw, &sampling_rate); @@ -215,6 +216,14 @@ static int pcm_open(struct snd_pcm_substream *substream) mutex_unlock(&efw->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(&efw->mutex); + goto err_locked; + } } } @@ -249,10 +258,11 @@ 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(&efw->mutex); err = snd_efw_stream_reserve_duplex(efw, rate, - frames_per_period); + frames_per_period, frames_per_buffer); if (err >= 0) ++efw->substreams_counter; mutex_unlock(&efw->mutex); |