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no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.9 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: 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 --- 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) */