diff options
Diffstat (limited to 'sound/firewire/tascam/tascam-pcm.c')
| -rw-r--r-- | sound/firewire/tascam/tascam-pcm.c | 35 |
1 files changed, 6 insertions, 29 deletions
diff --git a/sound/firewire/tascam/tascam-pcm.c b/sound/firewire/tascam/tascam-pcm.c index 3c4482aa7231..6ec8ec634d4d 100644 --- a/sound/firewire/tascam/tascam-pcm.c +++ b/sound/firewire/tascam/tascam-pcm.c @@ -8,41 +8,14 @@ #include "tascam.h" -static void set_buffer_params(struct snd_pcm_hardware *hw) -{ - hw->period_bytes_min = 4 * hw->channels_min; - hw->period_bytes_max = hw->period_bytes_min * 2048; - hw->buffer_bytes_max = hw->period_bytes_max * 2; - - hw->periods_min = 2; - hw->periods_max = UINT_MAX; -} - static int pcm_init_hw_params(struct snd_tscm *tscm, struct snd_pcm_substream *substream) { - static const struct snd_pcm_hardware hardware = { - .info = SNDRV_PCM_INFO_BATCH | - SNDRV_PCM_INFO_BLOCK_TRANSFER | - SNDRV_PCM_INFO_INTERLEAVED | - SNDRV_PCM_INFO_JOINT_DUPLEX | - SNDRV_PCM_INFO_MMAP | - SNDRV_PCM_INFO_MMAP_VALID, - .rates = SNDRV_PCM_RATE_44100 | - SNDRV_PCM_RATE_48000 | - SNDRV_PCM_RATE_88200 | - SNDRV_PCM_RATE_96000, - .rate_min = 44100, - .rate_max = 96000, - .channels_min = 10, - .channels_max = 18, - }; struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_pcm_hardware *hw = &runtime->hw; struct amdtp_stream *stream; unsigned int pcm_channels; - runtime->hw = hardware; - if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { runtime->hw.formats = SNDRV_PCM_FMTBIT_S32; stream = &tscm->tx_stream; @@ -59,7 +32,11 @@ static int pcm_init_hw_params(struct snd_tscm *tscm, pcm_channels += 2; runtime->hw.channels_min = runtime->hw.channels_max = pcm_channels; - set_buffer_params(&runtime->hw); + hw->rates = SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_88200 | + SNDRV_PCM_RATE_96000; + snd_pcm_limit_hw_rates(runtime); return amdtp_tscm_add_pcm_hw_constraints(stream, runtime); } |