ALSA: tlv: add DECLARE_TLV_CONTAINER()

Add the DECLARE_TLV_CONTAINER() macro to allow having static TLVs containing more than one item. Signed-off-by: Clemens Ladisch <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
PJensen · Jul 16, 2012 · 570aef5 · 570aef5
1 parent b5b9eb5
commit 570aef5
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/include/sound/tlv.h b/include/sound/tlv.h
@@ -43,6 +43,11 @@
 #define TLV_LENGTH(...) \
 	((unsigned int)sizeof((const unsigned int[]) { __VA_ARGS__ }))
 
+#define TLV_CONTAINER_ITEM(...) \
+	TLV_ITEM(SNDRV_CTL_TLVT_CONTAINER, __VA_ARGS__)
+#define DECLARE_TLV_CONTAINER(name, ...) \
+	unsigned int name[] = { TLV_CONTAINER_ITEM(__VA_ARGS__) }
+
 #define TLV_DB_SCALE_MASK	0xffff
 #define TLV_DB_SCALE_MUTE	0x10000
 #define TLV_DB_SCALE_ITEM(min, step, mute)			\