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authorTakashi Iwai <tiwai@suse.de>2017-05-10 20:25:17 +0200
committerTakashi Iwai <tiwai@suse.de>2017-06-02 19:37:57 +0200
commit21de5673663f2620fa2838e4e2ea5db9c91fad4d (patch)
tree80f46ff3608d1b1bafe9e01912dbd77434d896a4 /sound/pci/nm256
parentb96c3a155696eae0a3c08b71f7642ccb1437ac75 (diff)
downloadlinux-21de5673663f2620fa2838e4e2ea5db9c91fad4d.tar.bz2
ALSA: nm256: Convert to new PCM copy ops
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>
Diffstat (limited to 'sound/pci/nm256')
-rw-r--r--sound/pci/nm256/nm256.c57
1 files changed, 37 insertions, 20 deletions
diff --git a/sound/pci/nm256/nm256.c b/sound/pci/nm256/nm256.c
index 103fe311e5a9..63f0985dae27 100644
--- a/sound/pci/nm256/nm256.c
+++ b/sound/pci/nm256/nm256.c
@@ -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,
};