Many drivers are using below code to know the direction.
if (direction == SNDRV_PCM_STREAM_PLAYBACK)
Add snd_stream_is_playback/capture() macro to handle it. It also adds snd_substream_is_playback/capture() to handle snd_pcm_substream.
Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- include/sound/pcm.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)
diff --git a/include/sound/pcm.h b/include/sound/pcm.h index 3edd7a7346daa..024dc2b337154 100644 --- a/include/sound/pcm.h +++ b/include/sound/pcm.h @@ -501,6 +501,25 @@ struct snd_pcm_substream {
#define SUBSTREAM_BUSY(substream) ((substream)->ref_count > 0)
+static inline int snd_stream_is_playback(int stream) +{ + return stream == SNDRV_PCM_STREAM_PLAYBACK; +} + +static inline int snd_stream_is_capture(int stream) +{ + return stream == SNDRV_PCM_STREAM_CAPTURE; +} + +static inline int snd_substream_is_playback(const struct snd_pcm_substream *substream) +{ + return snd_stream_is_playback(substream->stream); +} + +static inline int snd_substream_is_capture(const struct snd_pcm_substream *substream) +{ + return snd_stream_is_capture(substream->stream); +}
struct snd_pcm_str { int stream; /* stream (direction) */