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| author | Clemens Ladisch <clemens@ladisch.de> | 2009-12-18 09:30:24 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-12-18 12:57:13 +0100 |
| commit | 6cedf8696d6a01bba391bdae06231243cfe2f48a (patch) | |
| tree | ed2ddf4bd730e5a12b16912c5b1fd8884a92fc22 /sound/mips | |
| parent | d20fb5dc076a4cf0fdd00ab5a4e752ea3611e484 (diff) | |
| download | lwn-6cedf8696d6a01bba391bdae06231243cfe2f48a.tar.gz lwn-6cedf8696d6a01bba391bdae06231243cfe2f48a.zip | |
sound: sgio2audio: 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/mips')
| -rw-r--r-- | sound/mips/sgio2audio.c | 31 |
1 files changed, 6 insertions, 25 deletions
diff --git a/sound/mips/sgio2audio.c b/sound/mips/sgio2audio.c index f1d9d16b5486..9b486beeb932 100644 --- a/sound/mips/sgio2audio.c +++ b/sound/mips/sgio2audio.c @@ -26,7 +26,6 @@ #include <linux/delay.h> #include <linux/spinlock.h> #include <linux/gfp.h> -#include <linux/vmalloc.h> #include <linux/interrupt.h> #include <linux/dma-mapping.h> #include <linux/platform_device.h> @@ -603,25 +602,14 @@ static int snd_sgio2audio_pcm_close(struct snd_pcm_substream *substream) static int snd_sgio2audio_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *hw_params) { - struct snd_pcm_runtime *runtime = substream->runtime; - int size = params_buffer_bytes(hw_params); - - /* alloc virtual 'dma' area */ - if (runtime->dma_area) - vfree(runtime->dma_area); - runtime->dma_area = vmalloc_user(size); - if (runtime->dma_area == NULL) - return -ENOMEM; - runtime->dma_bytes = size; - return 0; + return snd_pcm_lib_alloc_vmalloc_buffer(substream, + params_buffer_bytes(hw_params)); } /* hw_free callback */ static int snd_sgio2audio_pcm_hw_free(struct snd_pcm_substream *substream) { - vfree(substream->runtime->dma_area); - substream->runtime->dma_area = NULL; - return 0; + return snd_pcm_lib_free_vmalloc_buffer(substream); } /* prepare callback */ @@ -692,13 +680,6 @@ snd_sgio2audio_pcm_pointer(struct snd_pcm_substream *substream) chip->channel[chan->idx].pos); } -/* get the physical page pointer on the given offset */ -static struct page *snd_sgio2audio_page(struct snd_pcm_substream *substream, - unsigned long offset) -{ - return vmalloc_to_page(substream->runtime->dma_area + offset); -} - /* operators */ static struct snd_pcm_ops snd_sgio2audio_playback1_ops = { .open = snd_sgio2audio_playback1_open, @@ -709,7 +690,7 @@ static struct snd_pcm_ops snd_sgio2audio_playback1_ops = { .prepare = snd_sgio2audio_pcm_prepare, .trigger = snd_sgio2audio_pcm_trigger, .pointer = snd_sgio2audio_pcm_pointer, - .page = snd_sgio2audio_page, + .page = snd_pcm_lib_get_vmalloc_page, }; static struct snd_pcm_ops snd_sgio2audio_playback2_ops = { @@ -721,7 +702,7 @@ static struct snd_pcm_ops snd_sgio2audio_playback2_ops = { .prepare = snd_sgio2audio_pcm_prepare, .trigger = snd_sgio2audio_pcm_trigger, .pointer = snd_sgio2audio_pcm_pointer, - .page = snd_sgio2audio_page, + .page = snd_pcm_lib_get_vmalloc_page, }; static struct snd_pcm_ops snd_sgio2audio_capture_ops = { @@ -733,7 +714,7 @@ static struct snd_pcm_ops snd_sgio2audio_capture_ops = { .prepare = snd_sgio2audio_pcm_prepare, .trigger = snd_sgio2audio_pcm_trigger, .pointer = snd_sgio2audio_pcm_pointer, - .page = snd_sgio2audio_page, + .page = snd_pcm_lib_get_vmalloc_page, }; /* |