diff options
| author | Clemens Ladisch <clemens@ladisch.de> | 2009-12-18 09:32:00 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-12-18 12:58:25 +0100 |
| commit | 5b4b2a41a1a80f5560364b7ef001486cd8fb5230 (patch) | |
| tree | 8fd89c9cfb6c50d4380b8f99f1c3669092bf4bf7 /sound/usb | |
| parent | c55675e348d9630c1ca69a190529bed1108c649d (diff) | |
sound: ua101: use vmalloc buffer helper functions
Remove this duplicate of snd_pcm_alloc_vmalloc_buffer and use the
equivalent core functions instead.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb')
| -rw-r--r-- | sound/usb/ua101.c | 52 |
1 files changed, 7 insertions, 45 deletions
diff --git a/sound/usb/ua101.c b/sound/usb/ua101.c index ab9f8a2e193..16dc7bd5e12 100644 --- a/sound/usb/ua101.c +++ b/sound/usb/ua101.c @@ -19,7 +19,6 @@ #include <linux/slab.h> #include <linux/usb.h> #include <linux/usb/audio.h> -#include <linux/vmalloc.h> #include <sound/core.h> #include <sound/initval.h> #include <sound/pcm.h> @@ -145,42 +144,6 @@ static struct usb_driver ua101_driver; static void abort_alsa_playback(struct ua101 *ua); static void abort_alsa_capture(struct ua101 *ua); -/* allocate virtual buffer; may be called more than once */ -static int snd_pcm_alloc_vmalloc_buffer(struct snd_pcm_substream *subs, - size_t size) -{ - struct snd_pcm_runtime *runtime = subs->runtime; - - if (runtime->dma_area) { - if (runtime->dma_bytes >= size) - return 0; /* already large enough */ - vfree(runtime->dma_area); - } - runtime->dma_area = vmalloc_user(size); - if (!runtime->dma_area) - return -ENOMEM; - runtime->dma_bytes = size; - return 0; -} - -/* free virtual buffer; may be called more than once */ -static int snd_pcm_free_vmalloc_buffer(struct snd_pcm_substream *subs) -{ - struct snd_pcm_runtime *runtime = subs->runtime; - - vfree(runtime->dma_area); - runtime->dma_area = NULL; - return 0; -} - -/* get the physical page pointer at the given offset */ -static struct page *snd_pcm_get_vmalloc_page(struct snd_pcm_substream *subs, - unsigned long offset) -{ - void *pageptr = subs->runtime->dma_area + offset; - return vmalloc_to_page(pageptr); -} - static const char *usb_error_string(int err) { switch (err) { @@ -791,8 +754,8 @@ static int capture_pcm_hw_params(struct snd_pcm_substream *substream, if (err < 0) return err; - return snd_pcm_alloc_vmalloc_buffer(substream, - params_buffer_bytes(hw_params)); + return snd_pcm_lib_alloc_vmalloc_buffer(substream, + params_buffer_bytes(hw_params)); } static int playback_pcm_hw_params(struct snd_pcm_substream *substream, @@ -809,14 +772,13 @@ static int playback_pcm_hw_params(struct snd_pcm_substream *substream, if (err < 0) return err; - return snd_pcm_alloc_vmalloc_buffer(substream, - params_buffer_bytes(hw_params)); + return snd_pcm_lib_alloc_vmalloc_buffer(substream, + params_buffer_bytes(hw_params)); } static int ua101_pcm_hw_free(struct snd_pcm_substream *substream) { - snd_pcm_free_vmalloc_buffer(substream); - return 0; + return snd_pcm_lib_free_vmalloc_buffer(substream); } static int capture_pcm_prepare(struct snd_pcm_substream *substream) @@ -948,7 +910,7 @@ static struct snd_pcm_ops capture_pcm_ops = { .prepare = capture_pcm_prepare, .trigger = capture_pcm_trigger, .pointer = capture_pcm_pointer, - .page = snd_pcm_get_vmalloc_page, + .page = snd_pcm_lib_get_vmalloc_page, }; static struct snd_pcm_ops playback_pcm_ops = { @@ -960,7 +922,7 @@ static struct snd_pcm_ops playback_pcm_ops = { .prepare = playback_pcm_prepare, .trigger = playback_pcm_trigger, .pointer = playback_pcm_pointer, - .page = snd_pcm_get_vmalloc_page, + .page = snd_pcm_lib_get_vmalloc_page, }; static const struct uac_format_type_i_discrete_descriptor * |