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[ALSA] usb-audio: merge playback/capture hardware information structs 

The hardware information structures for playback and capture streams,
respectively, are the same, so we can use just one structure for both
streams.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Clemens Ladisch 2006-10-04 13:41:25 +02:00 committed by Jaroslav Kysela
parent 9f4bd5dde8
commit 1700f3080d
1 changed files with 5 additions and 20 deletions
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25
sound/usb/usbaudio.c
View File

@ -1511,21 +1511,7 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream)
return 0;
}
static struct snd_pcm_hardware snd_usb_playback =
{
.info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_BATCH |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER,
.buffer_bytes_max = 1024 * 1024,
.period_bytes_min = 64,
.period_bytes_max = 512 * 1024,
.periods_min = 2,
.periods_max = 1024,
};
static struct snd_pcm_hardware snd_usb_capture =
static struct snd_pcm_hardware snd_usb_hardware =
{
.info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
@ -1904,8 +1890,7 @@ static int setup_hw_info(struct snd_pcm_runtime *runtime, struct snd_usb_substre
return 0;
}
static int snd_usb_pcm_open(struct snd_pcm_substream *substream, int direction,
struct snd_pcm_hardware *hw)
static int snd_usb_pcm_open(struct snd_pcm_substream *substream, int direction)
{
struct snd_usb_stream *as = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
@ -1913,7 +1898,7 @@ static int snd_usb_pcm_open(struct snd_pcm_substream *substream, int direction,
subs->interface = -1;
subs->format = 0;
runtime->hw = *hw;
runtime->hw = snd_usb_hardware;
runtime->private_data = subs;
subs->pcm_substream = substream;
return setup_hw_info(runtime, subs);
@ -1934,7 +1919,7 @@ static int snd_usb_pcm_close(struct snd_pcm_substream *substream, int direction)
static int snd_usb_playback_open(struct snd_pcm_substream *substream)
{
return snd_usb_pcm_open(substream, SNDRV_PCM_STREAM_PLAYBACK, &snd_usb_playback);
return snd_usb_pcm_open(substream, SNDRV_PCM_STREAM_PLAYBACK);
}
static int snd_usb_playback_close(struct snd_pcm_substream *substream)
@ -1944,7 +1929,7 @@ static int snd_usb_playback_close(struct snd_pcm_substream *substream)
static int snd_usb_capture_open(struct snd_pcm_substream *substream)
{
return snd_usb_pcm_open(substream, SNDRV_PCM_STREAM_CAPTURE, &snd_usb_capture);
return snd_usb_pcm_open(substream, SNDRV_PCM_STREAM_CAPTURE);
}
static int snd_usb_capture_close(struct snd_pcm_substream *substream)