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ALSA: firewire-tascam: code refactoring for pcm.hw_params/hw_free callbacks 

The pairs of pcm.hw_params callbacks and .hw_free callbacks for both
direction have no differences.

This commit unifies the pairs.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto 2019-06-02 16:12:51 +09:00 committed by Takashi Iwai
parent ece92831f0
commit d8f291b7b8
1 changed files with 7 additions and 48 deletions
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55
sound/firewire/tascam/tascam-pcm.c
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@ -84,8 +84,8 @@ static int pcm_close(struct snd_pcm_substream *substream)
return 0;
}
static int pcm_capture_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
static int pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
struct snd_tscm *tscm = substream->private_data;
int err;
@ -108,48 +108,7 @@ static int pcm_capture_hw_params(struct snd_pcm_substream *substream,
return err;
}
static int pcm_playback_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
struct snd_tscm *tscm = substream->private_data;
int err;
err = snd_pcm_lib_alloc_vmalloc_buffer(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);
mutex_lock(&tscm->mutex);
err = snd_tscm_stream_reserve_duplex(tscm, rate);
if (err >= 0)
++tscm->substreams_counter;
mutex_unlock(&tscm->mutex);
}
return err;
}
static int pcm_capture_hw_free(struct snd_pcm_substream *substream)
{
struct snd_tscm *tscm = substream->private_data;
mutex_lock(&tscm->mutex);
if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN)
--tscm->substreams_counter;
snd_tscm_stream_stop_duplex(tscm);
snd_tscm_stream_release_duplex(tscm);
mutex_unlock(&tscm->mutex);
return snd_pcm_lib_free_vmalloc_buffer(substream);
}
static int pcm_playback_hw_free(struct snd_pcm_substream *substream)
static int pcm_hw_free(struct snd_pcm_substream *substream)
{
struct snd_tscm *tscm = substream->private_data;
@ -270,8 +229,8 @@ int snd_tscm_create_pcm_devices(struct snd_tscm *tscm)
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = pcm_capture_hw_params,
.hw_free = pcm_capture_hw_free,
.hw_params = pcm_hw_params,
.hw_free = pcm_hw_free,
.prepare = pcm_capture_prepare,
.trigger = pcm_capture_trigger,
.pointer = pcm_capture_pointer,
@ -282,8 +241,8 @@ int snd_tscm_create_pcm_devices(struct snd_tscm *tscm)
.open = pcm_open,
.close = pcm_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = pcm_playback_hw_params,
.hw_free = pcm_playback_hw_free,
.hw_params = pcm_hw_params,
.hw_free = pcm_hw_free,
.prepare = pcm_playback_prepare,
.trigger = pcm_playback_trigger,
.pointer = pcm_playback_pointer,