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
|
/*
* Copyright (C) 2016 "IoT.bzh"
* Author Fulup Ar Foll <fulup@iot.bzh>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* reference:
* amixer contents; amixer controls;
* http://www.tldp.org/HOWTO/Alsa-sound-6.html
*/
#ifndef AUDIO_INTERF_H
#define AUDIO_INTERF_H
#define AFB_BINDING_VERSION 2
#include <json-c/json.h>
#include <afb/afb-binding.h>
// Waiting for official macro from José
#define AFB_GET_VERBOSITY afb_get_verbosity_v2()
#ifndef PUBLIC
#define PUBLIC
#endif
#define STATIC static
typedef enum {
QUERY_QUIET =0,
QUERY_COMPACT =1,
QUERY_VERBOSE =2,
QUERY_FULL =3,
} halQueryMode;
// Most controls are MIXER but some vendor specific are possible
typedef enum {
OUTVOL,
PCMVOL,
INVOL,
SWITCH,
ROUTE,
CARD,
ENUM,
} halGroupEnumT;
typedef enum {
READ,
WRITE,
RW,
} halAclEnumT;
typedef enum {
StartHalCrlTag=0,
// HighLevel Audio Control List
Master_Playback_Volume,
Master_OnOff_Switch,
Master_Playback_Ramp,
PCM_Playback_Volume,
PCM_Playback_Switch,
Capture_Volume,
EndHalCrlTag // used to compute number of ctls
} halCtlsEnumT;
PUBLIC int cbCheckResponse(struct afb_req request, int iserror, struct json_object *result) ;
PUBLIC void pingtest(struct afb_req request);
#endif /* AUDIO_INTERF_H */
|
