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authorAntonio Ospite <ao2@amarulasolutions.com>2013-06-21 13:11:49 +0200
committerTakashi Iwai <tiwai@suse.de>2013-06-21 14:35:52 +0200
commitfc76f8637650f422eb67385d5a584bf30befddaa (patch)
treea1b287a6b4ab2891caf18cd9374e8adba3242a24 /sound/usb
parent3dd446a7e5bb001ec681232ac63a558f5e0509ed (diff)
downloadlinux-fc76f8637650f422eb67385d5a584bf30befddaa.tar.bz2
ALSA: snd-usb-caiaq: use vmalloc buffers
For USB devices it's not necessary to allocate physically contiguous buffers. Signed-off-by: Antonio Ospite <ao2@amarulasolutions.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb')
-rw-r--r--sound/usb/caiaq/audio.c14
1 files changed, 6 insertions, 8 deletions
diff --git a/sound/usb/caiaq/audio.c b/sound/usb/caiaq/audio.c
index c1916184e2e1..7103b0908d13 100644
--- a/sound/usb/caiaq/audio.c
+++ b/sound/usb/caiaq/audio.c
@@ -183,14 +183,15 @@ static int snd_usb_caiaq_substream_close(struct snd_pcm_substream *substream)
static int snd_usb_caiaq_pcm_hw_params(struct snd_pcm_substream *sub,
struct snd_pcm_hw_params *hw_params)
{
- return snd_pcm_lib_malloc_pages(sub, params_buffer_bytes(hw_params));
+ return snd_pcm_lib_alloc_vmalloc_buffer(sub,
+ params_buffer_bytes(hw_params));
}
static int snd_usb_caiaq_pcm_hw_free(struct snd_pcm_substream *sub)
{
struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(sub);
deactivate_substream(cdev, sub);
- return snd_pcm_lib_free_pages(sub);
+ return snd_pcm_lib_free_vmalloc_buffer(sub);
}
/* this should probably go upstream */
@@ -345,7 +346,9 @@ static struct snd_pcm_ops snd_usb_caiaq_ops = {
.hw_free = snd_usb_caiaq_pcm_hw_free,
.prepare = snd_usb_caiaq_pcm_prepare,
.trigger = snd_usb_caiaq_pcm_trigger,
- .pointer = snd_usb_caiaq_pcm_pointer
+ .pointer = snd_usb_caiaq_pcm_pointer,
+ .page = snd_pcm_lib_get_vmalloc_page,
+ .mmap = snd_pcm_lib_mmap_vmalloc,
};
static void check_for_elapsed_periods(struct snd_usb_caiaqdev *cdev,
@@ -852,11 +855,6 @@ int snd_usb_caiaq_audio_init(struct snd_usb_caiaqdev *cdev)
snd_pcm_set_ops(cdev->pcm, SNDRV_PCM_STREAM_CAPTURE,
&snd_usb_caiaq_ops);
- snd_pcm_lib_preallocate_pages_for_all(cdev->pcm,
- SNDRV_DMA_TYPE_CONTINUOUS,
- snd_dma_continuous_data(GFP_KERNEL),
- MAX_BUFFER_SIZE, MAX_BUFFER_SIZE);
-
cdev->data_cb_info =
kmalloc(sizeof(struct snd_usb_caiaq_cb_info) * N_URBS,
GFP_KERNEL);