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authorTakashi Iwai <tiwai@suse.de>2005-05-18 10:25:46 -0400
committerJaroslav Kysela <perex@suse.cz>2005-05-29 04:11:11 -0400
commit9502dcad6c1138a3ce2bae23ccd4be44c718d2a9 (patch)
tree008d96ca9953b55ba1bf3255e61e28de25997a0f /include/sound/pcm.h
parente5b3f45f5d442b57dd07dd4f914f7e6cf4d183f1 (diff)
[ALSA] Export missing snd_pcm_format_*()
PCM Midlevel Export snd_pcm_format_size(). This function is used by some out-of-kernel drivers. Make snd_pcm_format_cpu_endian() macro for optimization. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/sound/pcm.h')
-rw-r--r--include/sound/pcm.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 53fc04d75bad..50a6ee1aeab2 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -922,8 +922,22 @@ int snd_pcm_format_unsigned(snd_pcm_format_t format);
922int snd_pcm_format_linear(snd_pcm_format_t format); 922int snd_pcm_format_linear(snd_pcm_format_t format);
923int snd_pcm_format_little_endian(snd_pcm_format_t format); 923int snd_pcm_format_little_endian(snd_pcm_format_t format);
924int snd_pcm_format_big_endian(snd_pcm_format_t format); 924int snd_pcm_format_big_endian(snd_pcm_format_t format);
925/**
926 * snd_pcm_format_cpu_endian - Check the PCM format is CPU-endian
927 * @format: the format to check
928 *
929 * Returns 1 if the given PCM format is CPU-endian, 0 if
930 * opposite, or a negative error code if endian not specified.
931 */
932/* int snd_pcm_format_cpu_endian(snd_pcm_format_t format); */
933#ifdef SNDRV_LITTLE_ENDIAN
934#define snd_pcm_format_cpu_endian snd_pcm_format_little_endian
935#else
936#define snd_pcm_format_cpu_endian snd_pcm_format_big_endian
937#endif
925int snd_pcm_format_width(snd_pcm_format_t format); /* in bits */ 938int snd_pcm_format_width(snd_pcm_format_t format); /* in bits */
926int snd_pcm_format_physical_width(snd_pcm_format_t format); /* in bits */ 939int snd_pcm_format_physical_width(snd_pcm_format_t format); /* in bits */
940ssize_t snd_pcm_format_size(snd_pcm_format_t format, size_t samples);
927const unsigned char *snd_pcm_format_silence_64(snd_pcm_format_t format); 941const unsigned char *snd_pcm_format_silence_64(snd_pcm_format_t format);
928int snd_pcm_format_set_silence(snd_pcm_format_t format, void *buf, unsigned int frames); 942int snd_pcm_format_set_silence(snd_pcm_format_t format, void *buf, unsigned int frames);
929snd_pcm_format_t snd_pcm_build_linear_format(int width, int unsignd, int big_endian); 943snd_pcm_format_t snd_pcm_build_linear_format(int width, int unsignd, int big_endian);