Commit d8f291b7 authored by Takashi Sakamoto's avatar Takashi Sakamoto Committed by Takashi Iwai
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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: default avatarTakashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent ece92831

sound/firewire/tascam/tascam-pcm.c

+7 −48
Original line number Diff line number Diff line
@@ -84,7 +84,7 @@ static int pcm_close(struct snd_pcm_substream *substream) 
	return 0;

}



static int pcm_capture_hw_params(struct snd_pcm_substream *substream,

static int pcm_hw_params(struct snd_pcm_substream *substream,

			 struct snd_pcm_hw_params *hw_params)

{

	struct snd_tscm *tscm = substream->private_data;
@@ -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,

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