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authorTakashi Iwai <tiwai@suse.de>2009-09-10 15:33:06 +0200
committerTakashi Iwai <tiwai@suse.de>2009-09-10 15:33:06 +0200
commitb34c8663940dfc7da767c42b37605e5ad3ae11f7 (patch)
tree3e6639dd10ec737651871649c14fff9798511afa /include/sound
parent3827119e207823ff0f3e85271bef7a0dc953ee38 (diff)
parenteedbdf03a25ab3b2c332ad7fa205aa8ffbe477ba (diff)
downloadop-kernel-dev-b34c8663940dfc7da767c42b37605e5ad3ae11f7.zip
op-kernel-dev-b34c8663940dfc7da767c42b37605e5ad3ae11f7.tar.gz
Merge branch 'topic/tlv-minmax' into for-linus
* topic/tlv-minmax: ALSA: usb-audio - Correct bogus volume dB information ALSA: usb-audio - Use the new TLV_DB_MINMAX type ALSA: Add new TLV types for dBwith min/max
Diffstat (limited to 'include/sound')
-rw-r--r--include/sound/tlv.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/sound/tlv.h b/include/sound/tlv.h
index d136ea2..9fd5b19 100644
--- a/include/sound/tlv.h
+++ b/include/sound/tlv.h
@@ -35,6 +35,8 @@
#define SNDRV_CTL_TLVT_DB_SCALE 1 /* dB scale */
#define SNDRV_CTL_TLVT_DB_LINEAR 2 /* linear volume */
#define SNDRV_CTL_TLVT_DB_RANGE 3 /* dB range container */
+#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_ITEM(min, step, mute) \
SNDRV_CTL_TLVT_DB_SCALE, 2 * sizeof(unsigned int), \
@@ -42,6 +44,18 @@
#define DECLARE_TLV_DB_SCALE(name, min, step, mute) \
unsigned int name[] = { TLV_DB_SCALE_ITEM(min, step, mute) }
+/* dB scale specified with min/max values instead of step */
+#define TLV_DB_MINMAX_ITEM(min_dB, max_dB) \
+ SNDRV_CTL_TLVT_DB_MINMAX, 2 * sizeof(unsigned int), \
+ (min_dB), (max_dB)
+#define TLV_DB_MINMAX_MUTE_ITEM(min_dB, max_dB) \
+ SNDRV_CTL_TLVT_DB_MINMAX_MUTE, 2 * sizeof(unsigned int), \
+ (min_dB), (max_dB)
+#define DECLARE_TLV_DB_MINMAX(name, min_dB, max_dB) \
+ unsigned int name[] = { TLV_DB_MINMAX_ITEM(min_dB, max_dB) }
+#define DECLARE_TLV_DB_MINMAX_MUTE(name, min_dB, max_dB) \
+ unsigned int name[] = { TLV_DB_MINMAX_MUTE_ITEM(min_dB, max_dB) }
+
/* linear volume between min_dB and max_dB (.01dB unit) */
#define TLV_DB_LINEAR_ITEM(min_dB, max_dB) \
SNDRV_CTL_TLVT_DB_LINEAR, 2 * sizeof(unsigned int), \
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