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| author |   Takashi Iwai <tiwai@suse.de> | 2007-08-08 16:49:08 +0200 |
|---|---|---|
| committer |   Jaroslav Kysela <perex@perex.cz> | 2007-10-16 15:58:31 +0200 |
| commit | 64d27f96cb719cf8b5dae634c4c548049d4ae6bf (patch) | |
| tree | f10c68d67e15711d48a92ed258c93ca9018e5584 /sound/core/pcm_misc.c | |
| parent | [ALSA] Simplify the format conversion in PCM OSS emulation (diff) | |
| download | linux-dev-64d27f96cb719cf8b5dae634c4c548049d4ae6bf.tar.xz linux-dev-64d27f96cb719cf8b5dae634c4c548049d4ae6bf.zip | |
[ALSA] Support 3-bytes 24bit format in PCM OSS emulation
Add the support of 3-bytes 24bit formats in PCM OSS emulation.
Also removed snd_pcm_build_linear_format() function. It's exported
just for OSS emulation, and now the code was changed without calling
this function.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'sound/core/pcm_misc.c')
| -rw-r--r-- | sound/core/pcm_misc.c | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/sound/core/pcm_misc.c b/sound/core/pcm_misc.c index 0019c59a779d..9142fce4dda2 100644 --- a/sound/core/pcm_misc.c +++ b/sound/core/pcm_misc.c @@ -422,38 +422,6 @@ int snd_pcm_format_set_silence(snd_pcm_format_t format, void *data, unsigned int EXPORT_SYMBOL(snd_pcm_format_set_silence); -/* [width][unsigned][bigendian] */ -static int linear_formats[4][2][2] = { - {{ SNDRV_PCM_FORMAT_S8, SNDRV_PCM_FORMAT_S8}, - { SNDRV_PCM_FORMAT_U8, SNDRV_PCM_FORMAT_U8}}, - {{SNDRV_PCM_FORMAT_S16_LE, SNDRV_PCM_FORMAT_S16_BE}, - {SNDRV_PCM_FORMAT_U16_LE, SNDRV_PCM_FORMAT_U16_BE}}, - {{SNDRV_PCM_FORMAT_S24_LE, SNDRV_PCM_FORMAT_S24_BE}, - {SNDRV_PCM_FORMAT_U24_LE, SNDRV_PCM_FORMAT_U24_BE}}, - {{SNDRV_PCM_FORMAT_S32_LE, SNDRV_PCM_FORMAT_S32_BE}, - {SNDRV_PCM_FORMAT_U32_LE, SNDRV_PCM_FORMAT_U32_BE}} -}; - -/** - * snd_pcm_build_linear_format - return the suitable linear format for the given condition - * @width: the bit-width - * @unsignd: 1 if unsigned, 0 if signed. - * @big_endian: 1 if big-endian, 0 if little-endian - * - * Returns the suitable linear format for the given condition. - */ -snd_pcm_format_t snd_pcm_build_linear_format(int width, int unsignd, int big_endian) -{ - if (width & 7) - return SND_PCM_FORMAT_UNKNOWN; - width = (width / 8) - 1; - if (width < 0 || width >= 4) - return SND_PCM_FORMAT_UNKNOWN; - return linear_formats[width][!!unsignd][!!big_endian]; -} - -EXPORT_SYMBOL(snd_pcm_build_linear_format); - /** * snd_pcm_limit_hw_rates - determine rate_min/rate_max fields * @runtime: the runtime instance |