Add SND_CHMAP_NA and bit flag definitions

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 6 insertions, 1 deletions

diff --git a/include/pcm.h b/include/pcm.h
index 22194fcd..ee89a7ea 100644
--- a/include/pcm.h
+++ b/include/pcm.h
@@ -504,9 +504,14 @@ enum snd_pcm_chmap_position {
 	SND_CHMAP_FCH,		/** front center high */
 	SND_CHMAP_FRH,		/** front right high */
 	SND_CHMAP_TC,		/** top center */
-	SND_CHMAP_LAST = SND_CHMAP_TC,	/** last entry */
+	SND_CHMAP_NA,		/** N/A, silent */
+	SND_CHMAP_LAST = SND_CHMAP_NA,	/** last entry */
 };
 
+#define SND_CHMAP_POSITION_MASK		0xffff /** bitmask for channel position */
+#define SND_CHMAP_PHASE_INVERSE		(0x01 << 16) /* the channel is phase inverted */
+#define SND_CHMAP_DRIVER_SPEC		(0x02 << 16) /* non-standard channel value */
+
 int **snd_pcm_query_chmaps(snd_pcm_t *pcm);
 void snd_pcm_free_chmaps(int **maps);
 int *snd_pcm_get_chmap(snd_pcm_t *pcm);