diff options
Diffstat (limited to 'include/uapi/sound')
| -rw-r--r-- | include/uapi/sound/asound.h | 3 | ||||
| -rw-r--r-- | include/uapi/sound/tlv.h | 69 |
2 files changed, 71 insertions, 1 deletions
diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h index 609cadb8739d..be353a78c303 100644 --- a/include/uapi/sound/asound.h +++ b/include/uapi/sound/asound.h @@ -106,9 +106,10 @@ enum { SNDRV_HWDEP_IFACE_FW_OXFW, /* Oxford OXFW970/971 based device */ SNDRV_HWDEP_IFACE_FW_DIGI00X, /* Digidesign Digi 002/003 family */ SNDRV_HWDEP_IFACE_FW_TASCAM, /* TASCAM FireWire series */ + SNDRV_HWDEP_IFACE_LINE6, /* Line6 USB processors */ /* Don't forget to change the following: */ - SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_TASCAM + SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_LINE6 }; struct snd_hwdep_info { diff --git a/include/uapi/sound/tlv.h b/include/uapi/sound/tlv.h index ffc4f203146c..b4df440c015b 100644 --- a/include/uapi/sound/tlv.h +++ b/include/uapi/sound/tlv.h @@ -28,4 +28,73 @@ #define SNDRV_CTL_TLVT_CHMAP_VAR 0x102 /* channels freely swappable */ #define SNDRV_CTL_TLVT_CHMAP_PAIRED 0x103 /* pair-wise swappable */ +/* + * TLV structure is right behind the struct snd_ctl_tlv: + * unsigned int type - see SNDRV_CTL_TLVT_* + * unsigned int length + * .... data aligned to sizeof(unsigned int), use + * block_length = (length + (sizeof(unsigned int) - 1)) & + * ~(sizeof(unsigned int) - 1)) .... + */ +#define SNDRV_CTL_TLVD_ITEM(type, ...) \ + (type), SNDRV_CTL_TLVD_LENGTH(__VA_ARGS__), __VA_ARGS__ +#define SNDRV_CTL_TLVD_LENGTH(...) \ + ((unsigned int)sizeof((const unsigned int[]) { __VA_ARGS__ })) + +#define SNDRV_CTL_TLVD_CONTAINER_ITEM(...) \ + SNDRV_CTL_TLVD_ITEM(SNDRV_CTL_TLVT_CONTAINER, __VA_ARGS__) +#define SNDRV_CTL_TLVD_DECLARE_CONTAINER(name, ...) \ + unsigned int name[] = { \ + SNDRV_CTL_TLVD_CONTAINER_ITEM(__VA_ARGS__) \ + } + +#define SNDRV_CTL_TLVD_DB_SCALE_MASK 0xffff +#define SNDRV_CTL_TLVD_DB_SCALE_MUTE 0x10000 +#define SNDRV_CTL_TLVD_DB_SCALE_ITEM(min, step, mute) \ + SNDRV_CTL_TLVD_ITEM(SNDRV_CTL_TLVT_DB_SCALE, \ + (min), \ + ((step) & SNDRV_CTL_TLVD_DB_SCALE_MASK) | \ + ((mute) ? SNDRV_CTL_TLVD_DB_SCALE_MUTE : 0)) +#define SNDRV_CTL_TLVD_DECLARE_DB_SCALE(name, min, step, mute) \ + unsigned int name[] = { \ + SNDRV_CTL_TLVD_DB_SCALE_ITEM(min, step, mute) \ + } + +/* 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)) +#define SNDRV_CTL_TLVD_DB_MINMAX_MUTE_ITEM(min_dB, max_dB) \ + SNDRV_CTL_TLVD_ITEM(SNDRV_CTL_TLVT_DB_MINMAX_MUTE, (min_dB), (max_dB)) +#define SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(name, min_dB, max_dB) \ + unsigned int name[] = { \ + SNDRV_CTL_TLVD_DB_MINMAX_ITEM(min_dB, max_dB) \ + } +#define SNDRV_CTL_TLVD_DECLARE_DB_MINMAX_MUTE(name, min_dB, max_dB) \ + unsigned int name[] = { \ + SNDRV_CTL_TLVD_DB_MINMAX_MUTE_ITEM(min_dB, max_dB) \ + } + +/* 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)) +#define SNDRV_CTL_TLVD_DECLARE_DB_LINEAR(name, min_dB, max_dB) \ + unsigned int name[] = { \ + SNDRV_CTL_TLVD_DB_LINEAR_ITEM(min_dB, max_dB) \ + } + +/* 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 + * dB values (which is also required for all other mixer controls). + */ +/* Each item is: <min> <max> <TLV> */ +#define SNDRV_CTL_TLVD_DB_RANGE_ITEM(...) \ + SNDRV_CTL_TLVD_ITEM(SNDRV_CTL_TLVT_DB_RANGE, __VA_ARGS__) +#define SNDRV_CTL_TLVD_DECLARE_DB_RANGE(name, ...) \ + unsigned int name[] = { \ + SNDRV_CTL_TLVD_DB_RANGE_ITEM(__VA_ARGS__) \ + } + +#define SNDRV_CTL_TLVD_DB_GAIN_MUTE -9999999 + #endif |