The recent change (*) in the ALSA memalloc core allows us to drop the
special vmalloc-specific allocation and page handling. This patch
coverts to the common code.
(*) df3fd6509421: ALSA: memalloc: Add vmalloc buffer allocation
support
6ef6be988f98: ALSA: pcm: Handle special page mapping in the
default mmap handler
Also, since the SG-buffer-specific PCM ops becomes identical with the
normal PCM ops, unify them again to the single ops, too.
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
sound/usb/pcm.c | 50 ++++++++------------------------------------------
1 file changed, 8 insertions(+), 42 deletions(-)
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index ff5ab24f3bd1..9c8930bb00c8 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -785,12 +785,8 @@ static int snd_usb_hw_params(struct snd_pcm_substream *substream,
if (ret)
return ret;
- if (snd_usb_use_vmalloc)
- ret = snd_pcm_lib_alloc_vmalloc_buffer(substream,
- params_buffer_bytes(hw_params));
- else
- ret = snd_pcm_lib_malloc_pages(substream,
- params_buffer_bytes(hw_params));
+ ret = snd_pcm_lib_malloc_pages(substream,
+ params_buffer_bytes(hw_params));
if (ret < 0)
goto stop_pipeline;
@@ -857,10 +853,7 @@ static int snd_usb_hw_free(struct snd_pcm_substream *substream)
snd_usb_unlock_shutdown(subs->stream->chip);
}
- if (snd_usb_use_vmalloc)
- return snd_pcm_lib_free_vmalloc_buffer(substream);
- else
- return snd_pcm_lib_free_pages(substream);
+ return snd_pcm_lib_free_pages(substream);
}
/*
@@ -1781,7 +1774,6 @@ static const struct snd_pcm_ops snd_usb_playback_ops = {
.prepare = snd_usb_pcm_prepare,
.trigger = snd_usb_substream_playback_trigger,
.pointer = snd_usb_pcm_pointer,
- .page = snd_pcm_lib_get_vmalloc_page,
};
static const struct snd_pcm_ops snd_usb_capture_ops = {
@@ -1793,43 +1785,14 @@ static const struct snd_pcm_ops snd_usb_capture_ops = {
.prepare = snd_usb_pcm_prepare,
.trigger = snd_usb_substream_capture_trigger,
.pointer = snd_usb_pcm_pointer,
- .page = snd_pcm_lib_get_vmalloc_page,
-};
-
-static const struct snd_pcm_ops snd_usb_playback_dev_ops = {
- .open = snd_usb_pcm_open,
- .close = snd_usb_pcm_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = snd_usb_hw_params,
- .hw_free = snd_usb_hw_free,
- .prepare = snd_usb_pcm_prepare,
- .trigger = snd_usb_substream_playback_trigger,
- .pointer = snd_usb_pcm_pointer,
- .page = snd_pcm_sgbuf_ops_page,
-};
-
-static const struct snd_pcm_ops snd_usb_capture_dev_ops = {
- .open = snd_usb_pcm_open,
- .close = snd_usb_pcm_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = snd_usb_hw_params,
- .hw_free = snd_usb_hw_free,
- .prepare = snd_usb_pcm_prepare,
- .trigger = snd_usb_substream_capture_trigger,
- .pointer = snd_usb_pcm_pointer,
- .page = snd_pcm_sgbuf_ops_page,
};
void snd_usb_set_pcm_ops(struct snd_pcm *pcm, int stream)
{
const struct snd_pcm_ops *ops;
- if (snd_usb_use_vmalloc)
- ops = stream == SNDRV_PCM_STREAM_PLAYBACK ?
+ ops = stream == SNDRV_PCM_STREAM_PLAYBACK ?
&snd_usb_playback_ops : &snd_usb_capture_ops;
- else
- ops = stream == SNDRV_PCM_STREAM_PLAYBACK ?
- &snd_usb_playback_dev_ops : &snd_usb_capture_dev_ops;
snd_pcm_set_ops(pcm, stream, ops);
}
@@ -1839,7 +1802,10 @@ void snd_usb_preallocate_buffer(struct snd_usb_substream *subs)
struct snd_pcm_substream *s = pcm->streams[subs->direction].substream;
struct device *dev = subs->dev->bus->controller;
- if (!snd_usb_use_vmalloc)
+ if (snd_usb_use_vmalloc)
+ snd_pcm_lib_preallocate_pages(s, SNDRV_DMA_TYPE_VMALLOC,
+ NULL, 0, 0);
+ else
snd_pcm_lib_preallocate_pages(s, SNDRV_DMA_TYPE_DEV_SG,
dev, 64*1024, 512*1024);
}
--
2.16.4
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