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ALSA: nm256: Convert to new PCM copy ops

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Replace the copy and the silence ops with the new ops.
The conversion is straightforward with standard helper functions, and
now we can drop the bytes <-> frames conversions in callbacks.

Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2017-05-10 20:25:17 +02:00
parent b96c3a1556
commit 21de567366
1 changed files with 37 additions and 20 deletions
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57
sound/pci/nm256/nm256.c
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@ -695,53 +695,68 @@ snd_nm256_capture_pointer(struct snd_pcm_substream *substream)
*/
static int
snd_nm256_playback_silence(struct snd_pcm_substream *substream,
int channel, /* not used (interleaved data) */
snd_pcm_uframes_t pos,
snd_pcm_uframes_t count)
int channel, unsigned long pos, unsigned long count)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct nm256_stream *s = runtime->private_data;
count = frames_to_bytes(runtime, count);
pos = frames_to_bytes(runtime, pos);
memset_io(s->bufptr + pos, 0, count);
return 0;
}
static int
snd_nm256_playback_copy(struct snd_pcm_substream *substream,
int channel, /* not used (interleaved data) */
snd_pcm_uframes_t pos,
void __user *src,
snd_pcm_uframes_t count)
int channel, unsigned long pos,
void __user *src, unsigned long count)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct nm256_stream *s = runtime->private_data;
count = frames_to_bytes(runtime, count);
pos = frames_to_bytes(runtime, pos);
if (copy_from_user_toio(s->bufptr + pos, src, count))
return -EFAULT;
return 0;
}
static int
snd_nm256_playback_copy_kernel(struct snd_pcm_substream *substream,
int channel, unsigned long pos,
void *src, unsigned long count)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct nm256_stream *s = runtime->private_data;
memcpy_toio(s->bufptr + pos, src, count);
return 0;
}
/*
* copy to user
*/
static int
snd_nm256_capture_copy(struct snd_pcm_substream *substream,
int channel, /* not used (interleaved data) */
snd_pcm_uframes_t pos,
void __user *dst,
snd_pcm_uframes_t count)
int channel, unsigned long pos,
void __user *dst, unsigned long count)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct nm256_stream *s = runtime->private_data;
count = frames_to_bytes(runtime, count);
pos = frames_to_bytes(runtime, pos);
if (copy_to_user_fromio(dst, s->bufptr + pos, count))
return -EFAULT;
return 0;
}
static int
snd_nm256_capture_copy_kernel(struct snd_pcm_substream *substream,
int channel, unsigned long pos,
void *dst, unsigned long count)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct nm256_stream *s = runtime->private_data;
memcpy_fromio(dst, s->bufptr + pos, count);
return 0;
}
#endif /* !__i386__ */
@ -911,8 +926,9 @@ static const struct snd_pcm_ops snd_nm256_playback_ops = {
.trigger = snd_nm256_playback_trigger,
.pointer = snd_nm256_playback_pointer,
#ifndef __i386__
.copy = snd_nm256_playback_copy,
.silence = snd_nm256_playback_silence,
.copy_user = snd_nm256_playback_copy,
.copy_kernel = snd_nm256_playback_copy_kernel,
.fill_silence = snd_nm256_playback_silence,
#endif
.mmap = snd_pcm_lib_mmap_iomem,
};
@ -926,7 +942,8 @@ static const struct snd_pcm_ops snd_nm256_capture_ops = {
.trigger = snd_nm256_capture_trigger,
.pointer = snd_nm256_capture_pointer,
#ifndef __i386__
.copy = snd_nm256_capture_copy,
.copy_user = snd_nm256_capture_copy,
.copy_kernel = snd_nm256_capture_copy_kernel,
#endif
.mmap = snd_pcm_lib_mmap_iomem,
};