voice.h revision 8edfd66a7b1d033e65e5621d25ef3cbf1f40316e 
1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef VOICE_H
18#define VOICE_H
19
20#define BASE_SESS_IDX       0
21#define VOICE_SESS_IDX     (BASE_SESS_IDX)
22
23#ifdef MULTI_VOICE_SESSION_ENABLED
24#define MAX_VOICE_SESSIONS 5
25#else
26#define MAX_VOICE_SESSIONS 1
27#endif
28
29#define BASE_CALL_STATE     1
30#define CALL_INACTIVE       (BASE_CALL_STATE)
31#define CALL_ACTIVE         (BASE_CALL_STATE + 1)
32
33#define VOICE_VSID  0x10C01000
34
35#define AUDIO_PARAMETER_KEY_INCALLMUSIC "incall_music_enabled"
36#define AUDIO_PARAMETER_VALUE_TRUE "true"
37
38struct audio_device;
39struct str_parms;
40struct stream_in;
41struct stream_out;
42
43struct call_state {
44    int current;
45    int new;
46};
47
48struct voice_session {
49    struct pcm *pcm_rx;
50    struct pcm *pcm_tx;
51    struct call_state state;
52    uint32_t vsid;
53};
54
55struct voice {
56    struct voice_session session[MAX_VOICE_SESSIONS];
57    int tty_mode;
58    bool hac;
59    bool mic_mute;
60    float volume;
61    bool voice_device_set;
62};
63
64enum {
65    INCALL_REC_NONE = -1,
66    INCALL_REC_UPLINK,
67    INCALL_REC_DOWNLINK,
68    INCALL_REC_UPLINK_AND_DOWNLINK,
69};
70
71int voice_start_call(struct audio_device *adev, struct stream_out *out);
72int voice_stop_call(struct audio_device *adev);
73int voice_set_parameters(struct audio_device *adev, struct str_parms *parms);
74void voice_get_parameters(struct audio_device *adev, struct str_parms *query,
75                          struct str_parms *reply);
76void voice_init(struct audio_device *adev);
77bool voice_is_in_call(struct audio_device *adev);
78bool voice_is_in_call_rec_stream(struct stream_in *in);
79int voice_set_mic_mute(struct audio_device *dev, bool state);
80bool voice_get_mic_mute(struct audio_device *dev);
81int voice_set_volume(struct audio_device *adev, float volume);
82int voice_check_and_set_incall_rec_usecase(struct audio_device *adev,
83                                           struct stream_in *in);
84int voice_check_and_set_incall_music_usecase(struct audio_device *adev,
85                                             struct stream_out *out);
86int voice_check_and_stop_incall_rec_usecase(struct audio_device *adev,
87                                            struct stream_in *in);
88void voice_update_devices_for_all_voice_usecases(struct audio_device *adev);
89#endif //VOICE_H
90