diff options
Diffstat (limited to 'include/uapi/sound/tlv.h')
| -rw-r--r-- | include/uapi/sound/tlv.h | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/include/uapi/sound/tlv.h b/include/uapi/sound/tlv.h index b4df440c015b..5bb55c80e095 100644 --- a/include/uapi/sound/tlv.h +++ b/include/uapi/sound/tlv.h @@ -1,14 +1,4 @@ -/* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ +/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ #ifndef __UAPI_SOUND_TLV_H #define __UAPI_SOUND_TLV_H @@ -28,6 +18,8 @@ #define SNDRV_CTL_TLVT_CHMAP_VAR 0x102 /* channels freely swappable */ #define SNDRV_CTL_TLVT_CHMAP_PAIRED 0x103 /* pair-wise swappable */ +#define SNDRV_CTL_TLVT_FCP_CHANNEL_LABELS 0x110 /* channel labels */ + /* * TLV structure is right behind the struct snd_ctl_tlv: * unsigned int type - see SNDRV_CTL_TLVT_* @@ -41,6 +33,10 @@ #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, ...) \ @@ -60,6 +56,10 @@ 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)) @@ -74,6 +74,10 @@ 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)) @@ -82,6 +86,10 @@ 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 |