diff options
| author | Antonio Ospite <ao2@amarulasolutions.com> | 2013-06-21 13:11:49 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2013-06-21 14:35:52 +0200 |
| commit | fc76f8637650f422eb67385d5a584bf30befddaa (patch) | |
| tree | a1b287a6b4ab2891caf18cd9374e8adba3242a24 /sound/usb | |
| parent | 3dd446a7e5bb001ec681232ac63a558f5e0509ed (diff) | |
| download | linux-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.c | 14 |
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); |