diff options
Diffstat (limited to 'sound/firewire/digi00x/digi00x-pcm.c')
| -rw-r--r-- | sound/firewire/digi00x/digi00x-pcm.c | 66 |
1 files changed, 49 insertions, 17 deletions
diff --git a/sound/firewire/digi00x/digi00x-pcm.c b/sound/firewire/digi00x/digi00x-pcm.c index 18e561b26625..57cbce4fd836 100644 --- a/sound/firewire/digi00x/digi00x-pcm.c +++ b/sound/firewire/digi00x/digi00x-pcm.c @@ -100,14 +100,14 @@ static int pcm_init_hw_params(struct snd_dg00x *dg00x, static int pcm_open(struct snd_pcm_substream *substream) { struct snd_dg00x *dg00x = substream->private_data; + struct amdtp_domain *d = &dg00x->domain; enum snd_dg00x_clock clock; bool detect; - unsigned int rate; int err; err = snd_dg00x_stream_lock_try(dg00x); if (err < 0) - goto end; + return err; err = pcm_init_hw_params(dg00x, substream); if (err < 0) @@ -127,19 +127,49 @@ static int pcm_open(struct snd_pcm_substream *substream) } } + mutex_lock(&dg00x->mutex); + + // When source of clock is not internal or any stream is reserved for + // transmission of PCM frames, the available sampling rate is limited + // at current one. if ((clock != SND_DG00X_CLOCK_INTERNAL) || - amdtp_stream_pcm_running(&dg00x->rx_stream) || - amdtp_stream_pcm_running(&dg00x->tx_stream)) { + (dg00x->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 = snd_dg00x_stream_get_external_rate(dg00x, &rate); - if (err < 0) + if (err < 0) { + mutex_unlock(&dg00x->mutex); goto err_locked; + } substream->runtime->hw.rate_min = rate; substream->runtime->hw.rate_max = rate; + + if (frames_per_period > 0) { + err = snd_pcm_hw_constraint_minmax(substream->runtime, + SNDRV_PCM_HW_PARAM_PERIOD_SIZE, + frames_per_period, frames_per_period); + if (err < 0) { + mutex_unlock(&dg00x->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(&dg00x->mutex); + goto err_locked; + } + } } + mutex_unlock(&dg00x->mutex); + snd_pcm_set_sync(substream); -end: - return err; + + return 0; err_locked: snd_dg00x_stream_lock_release(dg00x); return err; @@ -160,16 +190,18 @@ static int pcm_hw_params(struct snd_pcm_substream *substream, struct snd_dg00x *dg00x = substream->private_data; int err; - err = snd_pcm_lib_alloc_vmalloc_buffer(substream, - params_buffer_bytes(hw_params)); + err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); if (err < 0) return err; 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(&dg00x->mutex); - err = snd_dg00x_stream_reserve_duplex(dg00x, rate); + err = snd_dg00x_stream_reserve_duplex(dg00x, rate, + frames_per_period, frames_per_buffer); if (err >= 0) ++dg00x->substreams_counter; mutex_unlock(&dg00x->mutex); @@ -191,7 +223,7 @@ static int pcm_hw_free(struct snd_pcm_substream *substream) mutex_unlock(&dg00x->mutex); - return snd_pcm_lib_free_vmalloc_buffer(substream); + return snd_pcm_lib_free_pages(substream); } static int pcm_capture_prepare(struct snd_pcm_substream *substream) @@ -268,28 +300,28 @@ static snd_pcm_uframes_t pcm_capture_pointer(struct snd_pcm_substream *sbstrm) { struct snd_dg00x *dg00x = sbstrm->private_data; - return amdtp_stream_pcm_pointer(&dg00x->tx_stream); + return amdtp_domain_stream_pcm_pointer(&dg00x->domain, &dg00x->tx_stream); } static snd_pcm_uframes_t pcm_playback_pointer(struct snd_pcm_substream *sbstrm) { struct snd_dg00x *dg00x = sbstrm->private_data; - return amdtp_stream_pcm_pointer(&dg00x->rx_stream); + return amdtp_domain_stream_pcm_pointer(&dg00x->domain, &dg00x->rx_stream); } static int pcm_capture_ack(struct snd_pcm_substream *substream) { struct snd_dg00x *dg00x = substream->private_data; - return amdtp_stream_pcm_ack(&dg00x->tx_stream); + return amdtp_domain_stream_pcm_ack(&dg00x->domain, &dg00x->tx_stream); } static int pcm_playback_ack(struct snd_pcm_substream *substream) { struct snd_dg00x *dg00x = substream->private_data; - return amdtp_stream_pcm_ack(&dg00x->rx_stream); + return amdtp_domain_stream_pcm_ack(&dg00x->domain, &dg00x->rx_stream); } int snd_dg00x_create_pcm_devices(struct snd_dg00x *dg00x) @@ -304,7 +336,6 @@ int snd_dg00x_create_pcm_devices(struct snd_dg00x *dg00x) .trigger = pcm_capture_trigger, .pointer = pcm_capture_pointer, .ack = pcm_capture_ack, - .page = snd_pcm_lib_get_vmalloc_page, }; static const struct snd_pcm_ops playback_ops = { .open = pcm_open, @@ -316,7 +347,6 @@ int snd_dg00x_create_pcm_devices(struct snd_dg00x *dg00x) .trigger = pcm_playback_trigger, .pointer = pcm_playback_pointer, .ack = pcm_playback_ack, - .page = snd_pcm_lib_get_vmalloc_page, }; struct snd_pcm *pcm; int err; @@ -330,6 +360,8 @@ int snd_dg00x_create_pcm_devices(struct snd_dg00x *dg00x) "%s PCM", dg00x->card->shortname); snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_ops); snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_ops); + snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC, + NULL, 0, 0); return 0; } |