Allow for retrieving string naming a direction of a stream without the
need of substream pointer.
Signed-off-by: Cezary Rojewski <cezary.rojewski@xxxxxxxxx>
---
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);
}
/*
--
2.25.1
