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| author |   Cezary Rojewski <cezary.rojewski@intel.com> | 2022-05-11 18:23:50 +0200 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2022-06-06 12:33:09 +0100 |
| commit | 90b12a88b710cdc80c00552dfbd589228978bffe (patch) | |
| tree | 00d7e5433a3b0ca5bf138868de2d53cf5f5179ca | |
| parent | Merge existing fixes from asoc/for-5.19 into new branch (diff) | |
| download | linux-dev-90b12a88b710cdc80c00552dfbd589228978bffe.tar.xz linux-dev-90b12a88b710cdc80c00552dfbd589228978bffe.zip | |
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: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220511162403.3987658-2-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | include/sound/pcm.h | 19 |
1 files 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 @@ -1393,6 +1393,20 @@ 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); } /* |