summaryrefslogtreecommitdiff
path: root/backends/alsa/alsa-constants.c
blob: 363262820aaf1d738cc2e6701b1c9d9b65e1aa4e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
/*
 * Copyright (C) 2014 Michal Ratajsky <michal.ratajsky@gmail.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the licence, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
 */

#include <glib.h>
#include <glib/gi18n.h>
#include <alsa/asoundlib.h>
#include <libmatemixer/matemixer.h>

#include "alsa-constants.h"

/*
 * These lists of ALSA mixer elements are based on PulseAudio's mixer paths and own
 * observations. The intention is to provide translatable and in some cases better
 * readable labels and role assignments. The controls list is also used for selecting
 * the default controls and the selection machanism relies on the order of elements,
 * so more useful elements should be placed on the top. The last two boolean values
 * indicate whether we prefer the element to be used as a default input or output
 * control.
 *
 * Of course the lists are very incomplete and it would be great if users validated and
 * refreshed them from time to time.
 */
const AlsaControlInfo alsa_controls[] =
{
    /* Output controls */
    { "Master",                 N_("Master"),               MATE_MIXER_STREAM_CONTROL_ROLE_MASTER,  FALSE, TRUE },
    { "Hardware Master",        N_("Hardware Master"),      MATE_MIXER_STREAM_CONTROL_ROLE_MASTER,  FALSE, TRUE },
    { "PCM",                    N_("PCM"),                  MATE_MIXER_STREAM_CONTROL_ROLE_PCM,     FALSE, TRUE },
    { "Desktop Speaker",        N_("Desktop Speaker"),      MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, TRUE },
    { "Speaker",                N_("Speaker"),              MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, TRUE },
    { "Front",                  N_("Front Speaker"),        MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, TRUE },
    { "Front Speaker",          N_("Front Speaker"),        MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, TRUE },
    { "Speaker Front",          N_("Front Speaker"),        MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, TRUE },
    { "Headphone",              N_("Headphone"),            MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, TRUE },
    { "Headphone2",             N_("Headphone 2"),          MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, TRUE },
    { "Headset",                N_("Headset"),              MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, TRUE },
    { "Master Surround",        N_("Surround Speaker"),     MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, TRUE },
    { "Surround",               N_("Surround Speaker"),     MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, TRUE },
    { "Surround Speaker",       N_("Surround Speaker"),     MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, TRUE },
    { "Speaker Surround",       N_("Surround Speaker"),     MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, TRUE },
    { "Center",                 N_("Center Speaker"),       MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, TRUE },
    { "Center Speaker",         N_("Center Speaker"),       MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, TRUE },
    { "CLFE",                   N_("CLFE Speaker"),         MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, TRUE },
    { "Speaker CLFE",           N_("CLFE Speaker"),         MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, TRUE },
    { "Master Mono",            N_("Master Mono"),          MATE_MIXER_STREAM_CONTROL_ROLE_MASTER,  FALSE, TRUE },
    { "Master Digital",         N_("Master Digital"),       MATE_MIXER_STREAM_CONTROL_ROLE_MASTER,  FALSE, TRUE },
    { "Digital/SPDIF",          N_("Digital"),              MATE_MIXER_STREAM_CONTROL_ROLE_PORT,    FALSE, TRUE },
    { "Speaker Side",           N_("Side Speaker"),         MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, TRUE },
    { "Side",                   N_("Side Speaker"),         MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, TRUE },
    { "Rear",                   N_("Rear Speaker"),         MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, TRUE },
    { "Wave",                   N_("Wave"),                 MATE_MIXER_STREAM_CONTROL_ROLE_UNKNOWN, FALSE, TRUE },
    { "Phone",                  N_("Phone"),                MATE_MIXER_STREAM_CONTROL_ROLE_UNKNOWN, FALSE, TRUE },
    { "CD",                     N_("CD"),                   MATE_MIXER_STREAM_CONTROL_ROLE_CD,      FALSE, TRUE },
    { "Music",                  N_("Music"),                MATE_MIXER_STREAM_CONTROL_ROLE_MUSIC,   FALSE, TRUE },
    { "AC97",                   N_("AC97"),                 MATE_MIXER_STREAM_CONTROL_ROLE_UNKNOWN, FALSE, TRUE },
    { "LFE",                    N_("LFE Speaker"),          MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, FALSE },
    { "LFE Speaker",            N_("LFE Speaker"),          MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, FALSE },
    { "Bass Speaker",           N_("Bass Speaker"),         MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, FALSE },
    { "PC Speaker",             N_("PC Speaker"),           MATE_MIXER_STREAM_CONTROL_ROLE_SPEAKER, FALSE, FALSE },
    { "Synth",                  N_("Synth"),                MATE_MIXER_STREAM_CONTROL_ROLE_UNKNOWN, FALSE, FALSE },
    { "MIDI",                   N_("MIDI"),                 MATE_MIXER_STREAM_CONTROL_ROLE_UNKNOWN, FALSE, FALSE },
    { "Synth/MIDI",             N_("Synth/MIDI"),           MATE_MIXER_STREAM_CONTROL_ROLE_UNKNOWN, FALSE, FALSE },
    { "Bass",                   N_("Bass"),                 MATE_MIXER_STREAM_CONTROL_ROLE_BASS,    FALSE, FALSE },
    { "Treble",                 N_("Treble"),               MATE_MIXER_STREAM_CONTROL_ROLE_TREBLE,  FALSE, FALSE },

    /* Input controls */
    { "Capture",                N_("Capture"),                      MATE_MIXER_STREAM_CONTROL_ROLE_MASTER,      TRUE, FALSE },
    { "Mic",                    N_("Microphone"),                   MATE_MIXER_STREAM_CONTROL_ROLE_MICROPHONE,  TRUE, FALSE },
    { "Mic/Line",               N_("Microphone/Line In"),           MATE_MIXER_STREAM_CONTROL_ROLE_PORT,        TRUE, FALSE },
    { "Internal Mic",           N_("Internal Microphone"),          MATE_MIXER_STREAM_CONTROL_ROLE_MICROPHONE,  TRUE, FALSE },
    { "Int Mic",                N_("Internal Microphone"),          MATE_MIXER_STREAM_CONTROL_ROLE_MICROPHONE,  TRUE, FALSE },
    { "Front Mic",              N_("Front Microphone"),             MATE_MIXER_STREAM_CONTROL_ROLE_MICROPHONE,  TRUE, FALSE },
    { "Rear Mic",               N_("Rear Microphone"),              MATE_MIXER_STREAM_CONTROL_ROLE_MICROPHONE,  TRUE, FALSE },
    { "Dock Mic",               N_("Dock Microphone"),              MATE_MIXER_STREAM_CONTROL_ROLE_MICROPHONE,  TRUE, FALSE },
    { "Headphone Mic",          N_("Headphone Microphone"),         MATE_MIXER_STREAM_CONTROL_ROLE_MICROPHONE,  TRUE, FALSE },
    { "Headset Mic",            N_("Headset Microphone"),           MATE_MIXER_STREAM_CONTROL_ROLE_MICROPHONE,  TRUE, FALSE },
    { "Inverted Internal Mic",  N_("Inverted Internal Microphone"), MATE_MIXER_STREAM_CONTROL_ROLE_MICROPHONE,  TRUE, FALSE },
    { "Line",                   N_("Line In"),                      MATE_MIXER_STREAM_CONTROL_ROLE_PORT,        TRUE, FALSE },
    { "Line in",                N_("Line In"),                      MATE_MIXER_STREAM_CONTROL_ROLE_PORT,        TRUE, FALSE },
    { "Line In",                N_("Line In"),                      MATE_MIXER_STREAM_CONTROL_ROLE_PORT,        TRUE, FALSE },
    { "Aux",                    N_("Auxiliary"),                    MATE_MIXER_STREAM_CONTROL_ROLE_PORT,        TRUE, FALSE },
    { "Video",                  N_("Video"),                        MATE_MIXER_STREAM_CONTROL_ROLE_VIDEO,       TRUE, FALSE },
    { "TV Tuner",               N_("TV Tuner"),                     MATE_MIXER_STREAM_CONTROL_ROLE_UNKNOWN,     TRUE, FALSE },
    { "FM",                     N_("FM"),                           MATE_MIXER_STREAM_CONTROL_ROLE_UNKNOWN,     TRUE, FALSE },
    { "Phone",                  N_("Phone"),                        MATE_MIXER_STREAM_CONTROL_ROLE_UNKNOWN,     TRUE, FALSE },
    { "Mic Boost",              N_("Microphone Boost"),             MATE_MIXER_STREAM_CONTROL_ROLE_BOOST,       FALSE, FALSE },
    { "Mic Boost (+20dB)",      N_("Microphone Boost (+20dB)"),     MATE_MIXER_STREAM_CONTROL_ROLE_BOOST,       FALSE, FALSE },
    { "Int Mic Boost",          N_("Internal Microphone Boost"),    MATE_MIXER_STREAM_CONTROL_ROLE_BOOST,       FALSE, FALSE },
    { "Internal Mic Boost",     N_("Internal Microphone Boost"),    MATE_MIXER_STREAM_CONTROL_ROLE_BOOST,       FALSE, FALSE },
    { "Front Mic Boost",        N_("Front Microphone Boost"),       MATE_MIXER_STREAM_CONTROL_ROLE_BOOST,       FALSE, FALSE },
    { "Rear Mic Boost",         N_("Rear Microphone Boost"),        MATE_MIXER_STREAM_CONTROL_ROLE_BOOST,       FALSE, FALSE },
    { "Dock Mic Boost",         N_("Dock Microphone Boost"),        MATE_MIXER_STREAM_CONTROL_ROLE_BOOST,       FALSE, FALSE },
    { "Headphone Mic Boost",    N_("Headphone Microphone Boost"),   MATE_MIXER_STREAM_CONTROL_ROLE_BOOST,       FALSE, FALSE },
    { "Headset Mic Boost",      N_("Headset Microphone Boost"),     MATE_MIXER_STREAM_CONTROL_ROLE_BOOST,       FALSE, FALSE },
    { "Line Boost",             N_("Line In Boost"),                MATE_MIXER_STREAM_CONTROL_ROLE_BOOST,       FALSE, FALSE },
    { NULL }
};

/* Switches and toggles */
const AlsaSwitchInfo alsa_switches[] =
{
    { "Analog Output",          N_("Analog Output"),            MATE_MIXER_SWITCH_ROLE_PORT },
    { "Analog Source",          N_("Analog Source"),            MATE_MIXER_SWITCH_ROLE_PORT },
    { "Capture Source",         N_("Capture Source"),           MATE_MIXER_SWITCH_ROLE_PORT },
    { "Input Source",           N_("Input Source"),             MATE_MIXER_SWITCH_ROLE_PORT },
    { "Input Source Select",    N_("Input Source Select"),      MATE_MIXER_SWITCH_ROLE_PORT },
    { "Digital Input Source",   N_("Digital Input Source"),     MATE_MIXER_SWITCH_ROLE_PORT },
    { "PCM Capture Source",     N_("PCM Capture Source"),       MATE_MIXER_SWITCH_ROLE_PORT },
    { "IEC958 Playback Source", N_("Digital Playback Source"),  MATE_MIXER_SWITCH_ROLE_PORT },
    { "Mono Output Select",     N_("Mono Output Select"),       MATE_MIXER_SWITCH_ROLE_PORT },
    { "Shared Mic/Line in",     N_("Shared Mic/Line In"),       MATE_MIXER_SWITCH_ROLE_PORT },
    { "Mic Select",             N_("Microphone Select"),        MATE_MIXER_SWITCH_ROLE_PORT },
    { "Mic Jack Mode",          N_("Microphone Jack Mode"),     MATE_MIXER_SWITCH_ROLE_PORT },
    { "Surround Jack Mode",     N_("Surround Jack Mode"),       MATE_MIXER_SWITCH_ROLE_UNKNOWN },
    { "Auto-Mute Mode",         N_("Auto-Mute Mode"),           MATE_MIXER_SWITCH_ROLE_UNKNOWN },

    /* (Probably) toggles */
    { "External Amplifier",     N_("External Amplifier"),       MATE_MIXER_SWITCH_ROLE_UNKNOWN },
    { "Bass Boost",             N_("Bass Boost"),               MATE_MIXER_SWITCH_ROLE_BOOST },
    { "Capture Boost",          N_("Capture Boost"),            MATE_MIXER_SWITCH_ROLE_BOOST },
    { "IEC958",                 N_("Digital"),                  MATE_MIXER_SWITCH_ROLE_PORT },
    { "IEC958 In",              N_("Digital In"),               MATE_MIXER_SWITCH_ROLE_PORT },
    { "IEC958 Default PCM",     N_("Digital Default PCM"),      MATE_MIXER_SWITCH_ROLE_UNKNOWN },
    { "IEC958 Optical Raw",     N_("Optical"),                  MATE_MIXER_SWITCH_ROLE_PORT },
    { "Auto Gain Control",      N_("Auto Gain Control"),        MATE_MIXER_SWITCH_ROLE_UNKNOWN },
    { "Mix",                    N_("Mix"),                      MATE_MIXER_SWITCH_ROLE_UNKNOWN },
    { "Mix Mono",               N_("Mix Mono"),                 MATE_MIXER_SWITCH_ROLE_UNKNOWN },
    { "Mic Capture",            N_("Mic Capture"),              MATE_MIXER_SWITCH_ROLE_PORT },
    { "Input 1",                N_("Input 1"),                  MATE_MIXER_SWITCH_ROLE_PORT },
    { "Input 2",                N_("Input 2"),                  MATE_MIXER_SWITCH_ROLE_PORT },
    { NULL }
};

const AlsaSwitchOptionInfo alsa_switch_options[] =
{
    /* Output options */
    { "Speakers",           N_("Speakers"),                     NULL },
    { "Headphones",         N_("Headphones"),                   NULL },
    { "FP Headphones",      N_("Front Panel Headphones"),       NULL },

    /* Microphone options */
    { "Mic",                N_("Microphone"),                   "audio-input-microphone" },
    { "Microphone",         N_("Microphone"),                   "audio-input-microphone" },
    { "Mic1",               N_("Microphone 1"),                 "audio-input-microphone" },
    { "Mic2",               N_("Microphone 2"),                 "audio-input-microphone" },
    { "Mic in",             N_("Microphone In"),                "audio-input-microphone" },
    { "Mic In",             N_("Microphone In"),                "audio-input-microphone" },
    { "Microphone In",      N_("Microphone In"),                "audio-input-microphone" },
    { "Front Mic",          N_("Front Microphone"),             "audio-input-microphone" },
    { "Front Microphone",   N_("Front Microphone"),             "audio-input-microphone" },
    { "Headphone Mic",      N_("Headphone Microphone"),         "audio-input-microphone" },
    { "Headset Mic",        N_("Headset Microphone"),           "audio-input-microphone" },
    { "Dock Mic",           N_("Dock Microphone"),              "audio-input-microphone" },
    { "Internal Mic",       N_("Internal Microphone"),          "audio-input-microphone" },
    { "Int Mic",            N_("Internal Microphone"),          "audio-input-microphone" },
    { "Internal Mic 1",     N_("Internal Microphone 1"),        "audio-input-microphone" },
    { "iMic",               N_("Internal Microphone"),          "audio-input-microphone" },
    { "i-Mic",              N_("Internal Microphone"),          "audio-input-microphone" },
    { "IntMic",             N_("Internal Microphone"),          "audio-input-microphone" },
    { "Int DMic",           N_("Internal Digital Microphone"),  "audio-input-microphone" },
    { "Digital Mic",        N_("Digital Microphone"),           "audio-input-microphone" },
    { "Digital Mic 1",      N_("Digital Microphone 1"),         "audio-input-microphone" },
    { "Digital Mic 2",      N_("Digital Microphone 2"),         "audio-input-microphone" },
    { "D-Mic",              N_("Digital Microphone"),           "audio-input-microphone" },
    { "ExtMic",             N_("External Microphone"),          "audio-input-microphone" },
    { "Ext Mic",            N_("External Microphone"),          "audio-input-microphone" },
    { "E-Mic",              N_("External Microphone"),          "audio-input-microphone" },
    { "e-Mic",              N_("External Microphone"),          "audio-input-microphone" },
    { "Rear Mic",           N_("Rear Microphone"),              "audio-input-microphone" },
    { "Rear Microphone",    N_("Rear Microphone"),              "audio-input-microphone" },
    { "Cam Mic",            N_("Camera Microphone"),            "audio-input-microphone" },

    /* Other options */
    { "Analog",             N_("Analog"),                       NULL },
    { "Analog In",          N_("Analog In"),                    NULL },
    { "Analog Inputs",      N_("Analog Inputs"),                NULL },
    { "Line in",            N_("Line In"),                      NULL },
    { "Line In",            N_("Line In"),                      NULL },
    { "Line-In",            N_("Line In"),                      NULL },
    { "Mic/Line",           N_("Microphone/Line In"),           NULL },
    { "Line/Mic",           N_("Line In/Microphone"),           NULL },
    { "LineIn",             N_("Line In"),                      NULL },
    { "Line",               N_("Line In"),                      NULL },
    { "Input1",             N_("Input 1"),                      NULL },
    { "Input2",             N_("Input 2"),                      NULL },
    { "IEC958 In",          N_("Digital In"),                   NULL },
    { "TV Tuner",           N_("TV Tuner"),                     NULL },
    { "FM",                 N_("FM"),                           NULL },
    { "AUX",                N_("Auxiliary"),                    NULL },
    { "AUX IN",             N_("Auxiliary In"),                 NULL },
    { "Aux In",             N_("Auxiliary In"),                 NULL },
    { "Aux",                N_("Auxiliary"),                    NULL },
    { "Aux0",               N_("Auxiliary 0"),                  NULL },
    { "Aux1",               N_("Auxiliary 1"),                  NULL },
    { "Aux2",               N_("Auxiliary 2"),                  NULL },
    { "Aux3",               N_("Auxiliary 3"),                  NULL },
    { "Docking-Station",    N_("Docking Station"),              NULL },
    { "Mixer",              N_("Mixer"),                        NULL },
    { "Phone",              N_("Phone"),                        NULL },
    { "Unknown1",           N_("Unknown 1"),                    NULL },
    { "Unknown2",           N_("Unknown 2"),                    NULL },
    { "Enabled",            N_("Enabled"),                      NULL },
    { "Disabled",           N_("Disabled"),                     NULL },
    { NULL }
};

const MateMixerChannelPosition alsa_channel_map_from[SND_MIXER_SCHN_LAST] =
{
    [SND_MIXER_SCHN_FRONT_LEFT]             = MATE_MIXER_CHANNEL_FRONT_LEFT,
    [SND_MIXER_SCHN_FRONT_RIGHT]            = MATE_MIXER_CHANNEL_FRONT_RIGHT,
    [SND_MIXER_SCHN_REAR_LEFT]              = MATE_MIXER_CHANNEL_BACK_LEFT,
    [SND_MIXER_SCHN_REAR_RIGHT]             = MATE_MIXER_CHANNEL_BACK_RIGHT,
    [SND_MIXER_SCHN_FRONT_CENTER]           = MATE_MIXER_CHANNEL_FRONT_CENTER,
    [SND_MIXER_SCHN_WOOFER]                 = MATE_MIXER_CHANNEL_LFE,
    [SND_MIXER_SCHN_SIDE_LEFT]              = MATE_MIXER_CHANNEL_SIDE_LEFT,
    [SND_MIXER_SCHN_SIDE_RIGHT]             = MATE_MIXER_CHANNEL_SIDE_RIGHT,
    [SND_MIXER_SCHN_REAR_CENTER]            = MATE_MIXER_CHANNEL_BACK_CENTER
};

const snd_mixer_selem_channel_id_t alsa_channel_map_to[MATE_MIXER_CHANNEL_MAX] =
{
    [MATE_MIXER_CHANNEL_UNKNOWN]            = SND_MIXER_SCHN_UNKNOWN,
    [MATE_MIXER_CHANNEL_MONO]               = SND_MIXER_SCHN_MONO,
    [MATE_MIXER_CHANNEL_FRONT_LEFT]         = SND_MIXER_SCHN_FRONT_LEFT,
    [MATE_MIXER_CHANNEL_FRONT_RIGHT]        = SND_MIXER_SCHN_FRONT_RIGHT,
    [MATE_MIXER_CHANNEL_FRONT_CENTER]       = SND_MIXER_SCHN_FRONT_CENTER,
    [MATE_MIXER_CHANNEL_LFE]                = SND_MIXER_SCHN_WOOFER,
    [MATE_MIXER_CHANNEL_BACK_LEFT]          = SND_MIXER_SCHN_REAR_LEFT,
    [MATE_MIXER_CHANNEL_BACK_RIGHT]         = SND_MIXER_SCHN_REAR_RIGHT,
    [MATE_MIXER_CHANNEL_BACK_CENTER]        = SND_MIXER_SCHN_REAR_CENTER,
    [MATE_MIXER_CHANNEL_FRONT_LEFT_CENTER]  = SND_MIXER_SCHN_UNKNOWN,
    [MATE_MIXER_CHANNEL_FRONT_RIGHT_CENTER] = SND_MIXER_SCHN_UNKNOWN,
    [MATE_MIXER_CHANNEL_SIDE_LEFT]          = SND_MIXER_SCHN_SIDE_LEFT,
    [MATE_MIXER_CHANNEL_SIDE_RIGHT]         = SND_MIXER_SCHN_SIDE_RIGHT,
    [MATE_MIXER_CHANNEL_TOP_FRONT_LEFT]     = SND_MIXER_SCHN_UNKNOWN,
    [MATE_MIXER_CHANNEL_TOP_FRONT_RIGHT]    = SND_MIXER_SCHN_UNKNOWN,
    [MATE_MIXER_CHANNEL_TOP_FRONT_CENTER]   = SND_MIXER_SCHN_UNKNOWN,
    [MATE_MIXER_CHANNEL_TOP_CENTER]         = SND_MIXER_SCHN_UNKNOWN,
    [MATE_MIXER_CHANNEL_TOP_BACK_LEFT]      = SND_MIXER_SCHN_UNKNOWN,
    [MATE_MIXER_CHANNEL_TOP_BACK_RIGHT]     = SND_MIXER_SCHN_UNKNOWN,
    [MATE_MIXER_CHANNEL_TOP_BACK_CENTER]    = SND_MIXER_SCHN_UNKNOWN
};