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| author | Takashi Iwai <tiwai@suse.de> | 2010-10-17 10:40:53 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2010-10-17 10:46:14 +0200 |
| commit | c08d91695b2a3349254a62b60f03f7971bd90fa0 (patch) | |
| tree | 3587f3285600f15f126a7736dbfa7a0801e43894 /include/sound/tlv.h | |
| parent | de8c85f7840e5e29629de95f5af24297fb325e0b (diff) | |
| download | lwn-c08d91695b2a3349254a62b60f03f7971bd90fa0.tar.gz lwn-c08d91695b2a3349254a62b60f03f7971bd90fa0.zip | |
ALSA: tlv - Define numbers in sound/tlv.h
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/sound/tlv.h')
| -rw-r--r-- | include/sound/tlv.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/sound/tlv.h b/include/sound/tlv.h index 9fd5b19ccf5c..7067e2dfb0b9 100644 --- a/include/sound/tlv.h +++ b/include/sound/tlv.h @@ -38,9 +38,11 @@ #define SNDRV_CTL_TLVT_DB_MINMAX 4 /* dB scale with min/max */ #define SNDRV_CTL_TLVT_DB_MINMAX_MUTE 5 /* dB scale with min/max with mute */ +#define TLV_DB_SCALE_MASK 0xffff +#define TLV_DB_SCALE_MUTE 0x10000 #define TLV_DB_SCALE_ITEM(min, step, mute) \ SNDRV_CTL_TLVT_DB_SCALE, 2 * sizeof(unsigned int), \ - (min), ((step) & 0xffff) | ((mute) ? 0x10000 : 0) + (min), ((step) & TLV_DB_SCALE_MASK) | ((mute) ? TLV_DB_SCALE_MUTE : 0) #define DECLARE_TLV_DB_SCALE(name, min, step, mute) \ unsigned int name[] = { TLV_DB_SCALE_ITEM(min, step, mute) } |