diff options
| -rw-r--r-- | sound/firewire/fireface/ff-pcm.c | 13 | ||||
| -rw-r--r-- | sound/firewire/fireface/ff-stream.c | 5 | ||||
| -rw-r--r-- | sound/firewire/fireface/ff.h | 3 |
3 files changed, 17 insertions, 4 deletions
diff --git a/sound/firewire/fireface/ff-pcm.c b/sound/firewire/fireface/ff-pcm.c index 415bc9ccd1c7..005d959f8651 100644 --- a/sound/firewire/fireface/ff-pcm.c +++ b/sound/firewire/fireface/ff-pcm.c @@ -180,6 +180,7 @@ static int pcm_open(struct snd_pcm_substream *substream) } else { if (ff->substreams_counter > 0) { unsigned int frames_per_period = d->events_per_period; + unsigned int frames_per_buffer = d->events_per_buffer; rate = amdtp_rate_table[ff->rx_stream.sfc]; substream->runtime->hw.rate_min = rate; @@ -192,6 +193,14 @@ static int pcm_open(struct snd_pcm_substream *substream) mutex_unlock(&ff->mutex); goto release_lock; } + + 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(&ff->mutex); + goto release_lock; + } } } @@ -229,9 +238,11 @@ 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(&ff->mutex); - err = snd_ff_stream_reserve_duplex(ff, rate, frames_per_period); + err = snd_ff_stream_reserve_duplex(ff, rate, frames_per_period, + frames_per_buffer); if (err >= 0) ++ff->substreams_counter; mutex_unlock(&ff->mutex); diff --git a/sound/firewire/fireface/ff-stream.c b/sound/firewire/fireface/ff-stream.c index cbe0e5087b05..a13754f914e8 100644 --- a/sound/firewire/fireface/ff-stream.c +++ b/sound/firewire/fireface/ff-stream.c @@ -107,7 +107,8 @@ void snd_ff_stream_destroy_duplex(struct snd_ff *ff) } int snd_ff_stream_reserve_duplex(struct snd_ff *ff, unsigned int rate, - unsigned int frames_per_period) + unsigned int frames_per_period, + unsigned int frames_per_buffer) { unsigned int curr_rate; enum snd_ff_clock_src src; @@ -153,7 +154,7 @@ int snd_ff_stream_reserve_duplex(struct snd_ff *ff, unsigned int rate, return err; err = amdtp_domain_set_events_per_period(&ff->domain, - frames_per_period, 0); + frames_per_period, frames_per_buffer); if (err < 0) { fw_iso_resources_free(&ff->tx_resources); fw_iso_resources_free(&ff->rx_resources); diff --git a/sound/firewire/fireface/ff.h b/sound/firewire/fireface/ff.h index 970d4ae571ee..dc7a20f75983 100644 --- a/sound/firewire/fireface/ff.h +++ b/sound/firewire/fireface/ff.h @@ -140,7 +140,8 @@ int snd_ff_stream_get_multiplier_mode(enum cip_sfc sfc, int snd_ff_stream_init_duplex(struct snd_ff *ff); void snd_ff_stream_destroy_duplex(struct snd_ff *ff); int snd_ff_stream_reserve_duplex(struct snd_ff *ff, unsigned int rate, - unsigned int frames_per_period); + unsigned int frames_per_period, + unsigned int frames_per_buffer); int snd_ff_stream_start_duplex(struct snd_ff *ff, unsigned int rate); void snd_ff_stream_stop_duplex(struct snd_ff *ff); void snd_ff_stream_update_duplex(struct snd_ff *ff); |