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e2be04c7 | 1 | /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
932ae880 LG |
2 | /* |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2 of the License, or | |
6 | * (at your option) any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | */ | |
13 | ||
14 | #ifndef __UAPI_SOUND_TLV_H | |
15 | #define __UAPI_SOUND_TLV_H | |
16 | ||
17 | #define SNDRV_CTL_TLVT_CONTAINER 0 /* one level down - group of TLVs */ | |
18 | #define SNDRV_CTL_TLVT_DB_SCALE 1 /* dB scale */ | |
19 | #define SNDRV_CTL_TLVT_DB_LINEAR 2 /* linear volume */ | |
20 | #define SNDRV_CTL_TLVT_DB_RANGE 3 /* dB range container */ | |
21 | #define SNDRV_CTL_TLVT_DB_MINMAX 4 /* dB scale with min/max */ | |
22 | #define SNDRV_CTL_TLVT_DB_MINMAX_MUTE 5 /* dB scale with min/max with mute */ | |
23 | ||
24 | /* | |
25 | * channel-mapping TLV items | |
26 | * TLV length must match with num_channels | |
27 | */ | |
28 | #define SNDRV_CTL_TLVT_CHMAP_FIXED 0x101 /* fixed channel position */ | |
29 | #define SNDRV_CTL_TLVT_CHMAP_VAR 0x102 /* channels freely swappable */ | |
30 | #define SNDRV_CTL_TLVT_CHMAP_PAIRED 0x103 /* pair-wise swappable */ | |
31 | ||
398fa4db TS |
32 | /* |
33 | * TLV structure is right behind the struct snd_ctl_tlv: | |
34 | * unsigned int type - see SNDRV_CTL_TLVT_* | |
35 | * unsigned int length | |
36 | * .... data aligned to sizeof(unsigned int), use | |
37 | * block_length = (length + (sizeof(unsigned int) - 1)) & | |
38 | * ~(sizeof(unsigned int) - 1)) .... | |
39 | */ | |
46e860f7 TS |
40 | #define SNDRV_CTL_TLVD_ITEM(type, ...) \ |
41 | (type), SNDRV_CTL_TLVD_LENGTH(__VA_ARGS__), __VA_ARGS__ | |
42 | #define SNDRV_CTL_TLVD_LENGTH(...) \ | |
398fa4db TS |
43 | ((unsigned int)sizeof((const unsigned int[]) { __VA_ARGS__ })) |
44 | ||
08f9f448 RS |
45 | /* Accessor offsets for TLV data items */ |
46 | #define SNDRV_CTL_TLVO_TYPE 0 | |
47 | #define SNDRV_CTL_TLVO_LEN 1 | |
48 | ||
46e860f7 TS |
49 | #define SNDRV_CTL_TLVD_CONTAINER_ITEM(...) \ |
50 | SNDRV_CTL_TLVD_ITEM(SNDRV_CTL_TLVT_CONTAINER, __VA_ARGS__) | |
51 | #define SNDRV_CTL_TLVD_DECLARE_CONTAINER(name, ...) \ | |
52 | unsigned int name[] = { \ | |
53 | SNDRV_CTL_TLVD_CONTAINER_ITEM(__VA_ARGS__) \ | |
54 | } | |
398fa4db | 55 | |
46e860f7 TS |
56 | #define SNDRV_CTL_TLVD_DB_SCALE_MASK 0xffff |
57 | #define SNDRV_CTL_TLVD_DB_SCALE_MUTE 0x10000 | |
58 | #define SNDRV_CTL_TLVD_DB_SCALE_ITEM(min, step, mute) \ | |
59 | SNDRV_CTL_TLVD_ITEM(SNDRV_CTL_TLVT_DB_SCALE, \ | |
60 | (min), \ | |
61 | ((step) & SNDRV_CTL_TLVD_DB_SCALE_MASK) | \ | |
62 | ((mute) ? SNDRV_CTL_TLVD_DB_SCALE_MUTE : 0)) | |
63 | #define SNDRV_CTL_TLVD_DECLARE_DB_SCALE(name, min, step, mute) \ | |
64 | unsigned int name[] = { \ | |
65 | SNDRV_CTL_TLVD_DB_SCALE_ITEM(min, step, mute) \ | |
66 | } | |
398fa4db | 67 | |
08f9f448 RS |
68 | /* Accessor offsets for min, mute and step items in dB scale type TLV */ |
69 | #define SNDRV_CTL_TLVO_DB_SCALE_MIN 2 | |
70 | #define SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP 3 | |
71 | ||
398fa4db | 72 | /* dB scale specified with min/max values instead of step */ |
46e860f7 TS |
73 | #define SNDRV_CTL_TLVD_DB_MINMAX_ITEM(min_dB, max_dB) \ |
74 | SNDRV_CTL_TLVD_ITEM(SNDRV_CTL_TLVT_DB_MINMAX, (min_dB), (max_dB)) | |
75 | #define SNDRV_CTL_TLVD_DB_MINMAX_MUTE_ITEM(min_dB, max_dB) \ | |
76 | SNDRV_CTL_TLVD_ITEM(SNDRV_CTL_TLVT_DB_MINMAX_MUTE, (min_dB), (max_dB)) | |
77 | #define SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(name, min_dB, max_dB) \ | |
78 | unsigned int name[] = { \ | |
79 | SNDRV_CTL_TLVD_DB_MINMAX_ITEM(min_dB, max_dB) \ | |
80 | } | |
81 | #define SNDRV_CTL_TLVD_DECLARE_DB_MINMAX_MUTE(name, min_dB, max_dB) \ | |
82 | unsigned int name[] = { \ | |
83 | SNDRV_CTL_TLVD_DB_MINMAX_MUTE_ITEM(min_dB, max_dB) \ | |
84 | } | |
398fa4db | 85 | |
e6f32bf4 TS |
86 | /* Accessor offsets for min, max items in db-minmax types of TLV. */ |
87 | #define SNDRV_CTL_TLVO_DB_MINMAX_MIN 2 | |
88 | #define SNDRV_CTL_TLVO_DB_MINMAX_MAX 3 | |
89 | ||
398fa4db | 90 | /* linear volume between min_dB and max_dB (.01dB unit) */ |
46e860f7 TS |
91 | #define SNDRV_CTL_TLVD_DB_LINEAR_ITEM(min_dB, max_dB) \ |
92 | SNDRV_CTL_TLVD_ITEM(SNDRV_CTL_TLVT_DB_LINEAR, (min_dB), (max_dB)) | |
93 | #define SNDRV_CTL_TLVD_DECLARE_DB_LINEAR(name, min_dB, max_dB) \ | |
94 | unsigned int name[] = { \ | |
95 | SNDRV_CTL_TLVD_DB_LINEAR_ITEM(min_dB, max_dB) \ | |
96 | } | |
398fa4db | 97 | |
e6f32bf4 TS |
98 | /* Accessor offsets for min, max items in db-linear type of TLV. */ |
99 | #define SNDRV_CTL_TLVO_DB_LINEAR_MIN 2 | |
100 | #define SNDRV_CTL_TLVO_DB_LINEAR_MAX 3 | |
101 | ||
398fa4db TS |
102 | /* dB range container: |
103 | * Items in dB range container must be ordered by their values and by their | |
104 | * dB values. This implies that larger values must correspond with larger | |
105 | * dB values (which is also required for all other mixer controls). | |
106 | */ | |
107 | /* Each item is: <min> <max> <TLV> */ | |
46e860f7 TS |
108 | #define SNDRV_CTL_TLVD_DB_RANGE_ITEM(...) \ |
109 | SNDRV_CTL_TLVD_ITEM(SNDRV_CTL_TLVT_DB_RANGE, __VA_ARGS__) | |
110 | #define SNDRV_CTL_TLVD_DECLARE_DB_RANGE(name, ...) \ | |
111 | unsigned int name[] = { \ | |
112 | SNDRV_CTL_TLVD_DB_RANGE_ITEM(__VA_ARGS__) \ | |
113 | } | |
398fa4db | 114 | |
46e860f7 | 115 | #define SNDRV_CTL_TLVD_DB_GAIN_MUTE -9999999 |
398fa4db | 116 | |
932ae880 | 117 | #endif |