ALSA: Add new TLV types for dBwith min/max

[safe/jmp/linux-2.6] / include / sound / tlv.h

diff --git a/include/sound/tlv.h b/include/sound/tlv.h
index d136ea2..9fd5b19 100644 (file)
--- 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), \