Allow for retrieving string naming a direction of a stream without the need of substream pointer.
Signed-off-by: Cezary Rojewski cezary.rojewski@intel.com --- include/sound/pcm.h | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-)
diff --git a/include/sound/pcm.h b/include/sound/pcm.h index 6b99310b5b88..26523cfe428d 100644 --- a/include/sound/pcm.h +++ b/include/sound/pcm.h @@ -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); }
/*