[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>

diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index 19bdcc74c96c9aa376742135c0c65de753dc62e7..478e504f7028d68c334d18e5171d84f1e6a32ca0 100644 (file)
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -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)