ALSA: bebob: code rafactoring for callback functions to PCM interface

The pairs of pcm.hw_params callback functions and .hw_free callback
functions 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>

diff --git a/sound/firewire/bebob/bebob_pcm.c b/sound/firewire/bebob/bebob_pcm.c
index 71b6ede..530db7a 100644 (file)
--- a/sound/firewire/bebob/bebob_pcm.c
+++ b/sound/firewire/bebob/bebob_pcm.c
@@ -185,33 +185,8 @@ 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)
-{
-       struct snd_bebob *bebob = 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(&bebob->mutex);
-               err = snd_bebob_stream_reserve_duplex(bebob, rate);
-               if (err >= 0)
-                       ++bebob->substreams_counter;
-               mutex_unlock(&bebob->mutex);
-       }
-
-       return err;
-}
-static int
-pcm_playback_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_bebob *bebob = substream->private_data;
        int err;
@@ -234,23 +209,7 @@ pcm_playback_hw_params(struct snd_pcm_substream *substream,
        return err;
 }
 
-static int
-pcm_capture_hw_free(struct snd_pcm_substream *substream)
-{
-       struct snd_bebob *bebob = substream->private_data;
-
-       if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) {
-               mutex_lock(&bebob->mutex);
-               bebob->substreams_counter--;
-               mutex_unlock(&bebob->mutex);
-       }
-
-       snd_bebob_stream_stop_duplex(bebob);
-
-       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_bebob *bebob = substream->private_data;
 
@@ -360,8 +319,8 @@ int snd_bebob_create_pcm_devices(struct snd_bebob *bebob)
                .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,
@@ -372,8 +331,8 @@ int snd_bebob_create_pcm_devices(struct snd_bebob *bebob)
                .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,