Unverified Commit 90b12a88 authored by Cezary Rojewski's avatar Cezary Rojewski Committed by Mark Brown
Browse files

ALSA: Add snd_pcm_direction_name() helper 



Allow for retrieving string naming a direction of a stream without the
need of substream pointer.

Signed-off-by: default avatarCezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220511162403.3987658-2-cezary.rojewski@intel.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent be1a63da

include/sound/pcm.h

+15 −4
Original line number Diff line number Diff line
@@ -1392,6 +1392,20 @@ static inline void snd_pcm_limit_isa_dma_size(int dma, size_t *max) 


const char *snd_pcm_format_name(snd_pcm_format_t format);



/**

 * snd_pcm_direction_name - Get a string naming the direction of a stream

 * @direction: Stream's direction, one of SNDRV_PCM_STREAM_XXX

 *

 * Returns a string naming the direction of the stream.

 */

static inline const char *snd_pcm_direction_name(int direction)

{

	if (direction == SNDRV_PCM_STREAM_PLAYBACK)

		return "Playback";

	else

		return "Capture";

}



/**

 * snd_pcm_stream_str - Get a string naming the direction of a stream

 * @substream: the pcm substream instance
@@ -1400,10 +1414,7 @@ const char *snd_pcm_format_name(snd_pcm_format_t format); 
 */

static inline const char *snd_pcm_stream_str(struct snd_pcm_substream *substream)

{

	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)

		return "Playback";

	else

		return "Capture";

	return snd_pcm_direction_name(substream->stream);

}



/*