diff options
Diffstat (limited to 'include/uapi/sound/tlv.h')
| -rw-r--r-- | include/uapi/sound/tlv.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/uapi/sound/tlv.h b/include/uapi/sound/tlv.h index be5371f09a62..7d6d65f60a42 100644 --- a/include/uapi/sound/tlv.h +++ b/include/uapi/sound/tlv.h @@ -42,6 +42,10 @@ #define SNDRV_CTL_TLVD_LENGTH(...) \ ((unsigned int)sizeof((const unsigned int[]) { __VA_ARGS__ })) +/* Accessor offsets for TLV data items */ +#define SNDRV_CTL_TLVO_TYPE 0 +#define SNDRV_CTL_TLVO_LEN 1 + #define SNDRV_CTL_TLVD_CONTAINER_ITEM(...) \ SNDRV_CTL_TLVD_ITEM(SNDRV_CTL_TLVT_CONTAINER, __VA_ARGS__) #define SNDRV_CTL_TLVD_DECLARE_CONTAINER(name, ...) \ @@ -61,6 +65,10 @@ SNDRV_CTL_TLVD_DB_SCALE_ITEM(min, step, mute) \ } +/* Accessor offsets for min, mute and step items in dB scale type TLV */ +#define SNDRV_CTL_TLVO_DB_SCALE_MIN 2 +#define SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP 3 + /* dB scale specified with min/max values instead of step */ #define SNDRV_CTL_TLVD_DB_MINMAX_ITEM(min_dB, max_dB) \ SNDRV_CTL_TLVD_ITEM(SNDRV_CTL_TLVT_DB_MINMAX, (min_dB), (max_dB)) @@ -75,6 +83,10 @@ SNDRV_CTL_TLVD_DB_MINMAX_MUTE_ITEM(min_dB, max_dB) \ } +/* Accessor offsets for min, max items in db-minmax types of TLV. */ +#define SNDRV_CTL_TLVO_DB_MINMAX_MIN 2 +#define SNDRV_CTL_TLVO_DB_MINMAX_MAX 3 + /* linear volume between min_dB and max_dB (.01dB unit) */ #define SNDRV_CTL_TLVD_DB_LINEAR_ITEM(min_dB, max_dB) \ SNDRV_CTL_TLVD_ITEM(SNDRV_CTL_TLVT_DB_LINEAR, (min_dB), (max_dB)) @@ -83,6 +95,10 @@ SNDRV_CTL_TLVD_DB_LINEAR_ITEM(min_dB, max_dB) \ } +/* Accessor offsets for min, max items in db-linear type of TLV. */ +#define SNDRV_CTL_TLVO_DB_LINEAR_MIN 2 +#define SNDRV_CTL_TLVO_DB_LINEAR_MAX 3 + /* dB range container: * Items in dB range container must be ordered by their values and by their * dB values. This implies that larger values must correspond with larger |