1/*
2 * Copyright (C) 2014-2016 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 7
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;
42typedef int audio_usecase_t;
43typedef int snd_device_t;
44
45struct call_state {
46    int current;
47    int new;
48};
49
50struct voice_session {
51    struct pcm *pcm_rx;
52    struct pcm *pcm_tx;
53    struct call_state state;
54    uint32_t vsid;
55};
56
57struct voice {
58    struct voice_session session[MAX_VOICE_SESSIONS];
59    int tty_mode;
60    bool hac;
61    bool mic_mute;
62    float volume;
63    bool in_call;
64};
65
66enum {
67    INCALL_REC_NONE = -1,
68    INCALL_REC_UPLINK,
69    INCALL_REC_DOWNLINK,
70    INCALL_REC_UPLINK_AND_DOWNLINK,
71};
72
73int voice_start_usecase(struct audio_device *adev, audio_usecase_t usecase_id);
74int voice_stop_usecase(struct audio_device *adev, audio_usecase_t usecase_id);
75
76int voice_start_call(struct audio_device *adev);
77int voice_stop_call(struct audio_device *adev);
78int voice_set_parameters(struct audio_device *adev, struct str_parms *parms);
79void voice_get_parameters(struct audio_device *adev, struct str_parms *query,
80                          struct str_parms *reply);
81void voice_init(struct audio_device *adev);
82bool voice_is_in_call(struct audio_device *adev);
83bool voice_is_in_call_rec_stream(struct stream_in *in);
84int voice_set_mic_mute(struct audio_device *dev, bool state);
85bool voice_get_mic_mute(struct audio_device *dev);
86int voice_set_volume(struct audio_device *adev, float volume);
87int voice_check_and_set_incall_rec_usecase(struct audio_device *adev,
88                                           struct stream_in *in);
89int voice_check_and_set_incall_music_usecase(struct audio_device *adev,
90                                             struct stream_out *out);
91int voice_check_and_stop_incall_rec_usecase(struct audio_device *adev,
92                                            struct stream_in *in);
93void voice_update_devices_for_all_voice_usecases(struct audio_device *adev);
94void voice_set_sidetone(struct audio_device *adev,
95                       snd_device_t out_snd_device,
96                       bool enable);
97bool voice_is_call_state_active(struct audio_device *adev);
98#endif //VOICE_H
99