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Commit 9502dcad authored by Takashi Iwai's avatar Takashi Iwai Committed by Jaroslav Kysela
Browse files

[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: default avatarTakashi Iwai <tiwai@suse.de>
parent e5b3f45f

include/sound/pcm.h

+14 −0
Original line number Diff line number Diff line
@@ -922,8 +922,22 @@ int snd_pcm_format_unsigned(snd_pcm_format_t format); 
int snd_pcm_format_linear(snd_pcm_format_t format);

int snd_pcm_format_little_endian(snd_pcm_format_t format);

int snd_pcm_format_big_endian(snd_pcm_format_t format);

/**

 * snd_pcm_format_cpu_endian - Check the PCM format is CPU-endian

 * @format: the format to check

 *

 * Returns 1 if the given PCM format is CPU-endian, 0 if

 * opposite, or a negative error code if endian not specified.

 */

/* int snd_pcm_format_cpu_endian(snd_pcm_format_t format); */

#ifdef SNDRV_LITTLE_ENDIAN

#define snd_pcm_format_cpu_endian	snd_pcm_format_little_endian

#else

#define snd_pcm_format_cpu_endian	snd_pcm_format_big_endian

#endif

int snd_pcm_format_width(snd_pcm_format_t format);			/* in bits */

int snd_pcm_format_physical_width(snd_pcm_format_t format);		/* in bits */

ssize_t snd_pcm_format_size(snd_pcm_format_t format, size_t samples);

const unsigned char *snd_pcm_format_silence_64(snd_pcm_format_t format);

int snd_pcm_format_set_silence(snd_pcm_format_t format, void *buf, unsigned int frames);

snd_pcm_format_t snd_pcm_build_linear_format(int width, int unsignd, int big_endian);

sound/core/pcm.c

+1 −0
Original line number Diff line number Diff line
@@ -1069,6 +1069,7 @@ EXPORT_SYMBOL(snd_pcm_format_little_endian); 
EXPORT_SYMBOL(snd_pcm_format_big_endian);

EXPORT_SYMBOL(snd_pcm_format_width);

EXPORT_SYMBOL(snd_pcm_format_physical_width);

EXPORT_SYMBOL(snd_pcm_format_size);

EXPORT_SYMBOL(snd_pcm_format_silence_64);

EXPORT_SYMBOL(snd_pcm_format_set_silence);

EXPORT_SYMBOL(snd_pcm_build_linear_format);

sound/core/pcm_misc.c

+0 −16
Original line number Diff line number Diff line
@@ -269,22 +269,6 @@ int snd_pcm_format_big_endian(snd_pcm_format_t format) 
	return !val;

}



/**

 * snd_pcm_format_cpu_endian - Check the PCM format is CPU-endian

 * @format: the format to check

 *

 * Returns 1 if the given PCM format is CPU-endian, 0 if

 * opposite, or a negative error code if endian not specified.

 */

int snd_pcm_format_cpu_endian(snd_pcm_format_t format)

{

#ifdef SNDRV_LITTLE_ENDIAN

	return snd_pcm_format_little_endian(format);

#else

	return snd_pcm_format_big_endian(format);

#endif

}



/**

 * snd_pcm_format_width - return the bit-width of the format

 * @format: the format to check