diff options
| author | Takashi Sakamoto | 2017-06-08 09:11:03 +0900 |
|---|---|---|
| committer | Takashi Iwai | 2017-06-08 09:15:44 +0200 |
| commit | 55799c5ab99e8762e58c387e39f9fa36e8f14158 (patch) | |
| tree | 77cfa81930583eeeec15f0ef783b1d9be9475986 /sound/firewire/fireface | |
| parent | c6706de0ce8bc8cd1e336b8cf0acabf1adedba6c (diff) | |
ALSA: firewire: arrange common PCM info/constraints for AMDTP engine applications
In ALSA firewire stack, 8 drivers uses IEC 61883-1/6 engine for data
transmission. They have common PCM info/constraints and duplicated codes.
This commit unifies the codes into fireiwre-lib.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/fireface')
| -rw-r--r-- | sound/firewire/fireface/ff-pcm.c | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/sound/firewire/fireface/ff-pcm.c b/sound/firewire/fireface/ff-pcm.c index ad974b5a2561..d12a0e3a4219 100644 --- a/sound/firewire/fireface/ff-pcm.c +++ b/sound/firewire/fireface/ff-pcm.c @@ -91,18 +91,6 @@ static void limit_channels_and_rates(struct snd_pcm_hardware *hw, } } -static void limit_period_and_buffer(struct snd_pcm_hardware *hw) -{ - hw->periods_min = 2; /* SNDRV_PCM_INFO_BATCH */ - hw->periods_max = UINT_MAX; - - hw->period_bytes_min = 4 * hw->channels_max; /* bytes for a frame */ - - /* Just to prevent from allocating much pages. */ - hw->period_bytes_max = hw->period_bytes_min * 2048; - hw->buffer_bytes_max = hw->period_bytes_max * hw->periods_min; -} - static int pcm_init_hw_params(struct snd_ff *ff, struct snd_pcm_substream *substream) { @@ -111,13 +99,6 @@ static int pcm_init_hw_params(struct snd_ff *ff, const unsigned int *pcm_channels; int err; - runtime->hw.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; - if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { runtime->hw.formats = SNDRV_PCM_FMTBIT_S32; s = &ff->tx_stream; @@ -128,9 +109,7 @@ static int pcm_init_hw_params(struct snd_ff *ff, pcm_channels = ff->spec->pcm_playback_channels; } - /* limit rates */ limit_channels_and_rates(&runtime->hw, pcm_channels); - limit_period_and_buffer(&runtime->hw); err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, hw_rule_channels, (void *)pcm_channels, |