include/uapi/sound/tlv.h

   1 /*
   2  *   This program is free software; you can redistribute it and/or modify
   3  *   it under the terms of the GNU General Public License as published by
   4  *   the Free Software Foundation; either version 2 of the License, or
   5  *   (at your option) any later version.
   6  *
   7  *   This program is distributed in the hope that it will be useful,
   8  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  *   GNU General Public License for more details.
  11  */
  12
  13 #ifndef __UAPI_SOUND_TLV_H
  14 #define __UAPI_SOUND_TLV_H
  15
  16 #define SNDRV_CTL_TLVT_CONTAINER 0      /* one level down - group of TLVs */
  17 #define SNDRV_CTL_TLVT_DB_SCALE 1       /* dB scale */
  18 #define SNDRV_CTL_TLVT_DB_LINEAR 2      /* linear volume */
  19 #define SNDRV_CTL_TLVT_DB_RANGE 3       /* dB range container */
  20 #define SNDRV_CTL_TLVT_DB_MINMAX 4      /* dB scale with min/max */
  21 #define SNDRV_CTL_TLVT_DB_MINMAX_MUTE 5 /* dB scale with min/max with mute */
  22
  23 /*
  24  * channel-mapping TLV items
  25  *  TLV length must match with num_channels
  26  */
  27 #define SNDRV_CTL_TLVT_CHMAP_FIXED      0x101   /* fixed channel position */
  28 #define SNDRV_CTL_TLVT_CHMAP_VAR        0x102   /* channels freely swappable */
  29 #define SNDRV_CTL_TLVT_CHMAP_PAIRED     0x103   /* pair-wise swappable */
  30
  31 #endif