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authorTakashi Iwai <tiwai@suse.de>2017-05-24 22:36:23 +0200
committerTakashi Iwai <tiwai@suse.de>2017-06-02 19:38:22 +0200
commit5c7264cfbb209efea04bbbd69b8b4f5f2fc5f86d (patch)
tree851ec067b37a9fd5bfdae9e8211f3cabf25a53d2 /include/sound
parent9f60063094ba72e2767be18289baf5151f1f1c2f (diff)
ALSA: pcm: Unify read/write loop
Both __snd_pcm_lib_read() and __snd_pcm_write() functions have almost the same code to loop over samples. For simplification, this patch unifies both as the single helper, __snd_pcm_lib_xfer(). Other than that, there should be no functional change by this patch. Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/sound')
-rw-r--r--include/sound/pcm.h13
1 files changed, 5 insertions, 8 deletions
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 0fac948bb053..db649083c76d 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -1072,10 +1072,7 @@ void snd_pcm_set_sync(struct snd_pcm_substream *substream);
int snd_pcm_lib_ioctl(struct snd_pcm_substream *substream,
unsigned int cmd, void *arg);
void snd_pcm_period_elapsed(struct snd_pcm_substream *substream);
-snd_pcm_sframes_t __snd_pcm_lib_write(struct snd_pcm_substream *substream,
- void *buf, bool interleaved,
- snd_pcm_uframes_t frames);
-snd_pcm_sframes_t __snd_pcm_lib_read(struct snd_pcm_substream *substream,
+snd_pcm_sframes_t __snd_pcm_lib_xfer(struct snd_pcm_substream *substream,
void *buf, bool interleaved,
snd_pcm_uframes_t frames);
@@ -1083,28 +1080,28 @@ static inline snd_pcm_sframes_t
snd_pcm_lib_write(struct snd_pcm_substream *substream,
const void __user *buf, snd_pcm_uframes_t frames)
{
- return __snd_pcm_lib_write(substream, (void *)buf, true, frames);
+ return __snd_pcm_lib_xfer(substream, (void *)buf, true, frames);
}
static inline snd_pcm_sframes_t
snd_pcm_lib_read(struct snd_pcm_substream *substream,
void __user *buf, snd_pcm_uframes_t frames)
{
- return __snd_pcm_lib_read(substream, (void *)buf, true, frames);
+ return __snd_pcm_lib_xfer(substream, (void *)buf, true, frames);
}
static inline snd_pcm_sframes_t
snd_pcm_lib_writev(struct snd_pcm_substream *substream,
void __user **bufs, snd_pcm_uframes_t frames)
{
- return __snd_pcm_lib_write(substream, (void *)bufs, false, frames);
+ return __snd_pcm_lib_xfer(substream, (void *)bufs, false, frames);
}
static inline snd_pcm_sframes_t
snd_pcm_lib_readv(struct snd_pcm_substream *substream,
void __user **bufs, snd_pcm_uframes_t frames)
{
- return __snd_pcm_lib_read(substream, (void *)bufs, false, frames);
+ return __snd_pcm_lib_xfer(substream, (void *)bufs, false, frames);
}
int snd_pcm_limit_hw_rates(struct snd_pcm_runtime *runtime);