1 /*
2  * Copyright 2021 HIMSA II K/S - www.himsa.com.
3  * Represented by EHIMA - www.ehima.com
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  *      http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 
18 #pragma once
19 
20 #include <aics/api.h>
21 #include <hardware/bt_vc.h>
22 
23 #include <string>
24 
25 #include "types/raw_address.h"
26 
27 class VolumeControl {
28 public:
29   virtual ~VolumeControl() = default;
30 
31   static void Initialize(bluetooth::vc::VolumeControlCallbacks* callbacks,
32                          const base::Closure& initCb);
33   static void CleanUp();
34   static VolumeControl* Get();
35   static void DebugDump(int fd);
36 
37   static void AddFromStorage(const RawAddress& address);
38 
39   static bool IsVolumeControlRunning();
40 
41   /* Volume Control Server (VCS) */
42   virtual void Connect(const RawAddress& address) = 0;
43   virtual void Disconnect(const RawAddress& address) = 0;
44   virtual void Remove(const RawAddress& address) = 0;
45   virtual void SetVolume(std::variant<RawAddress, int> addr_or_group_id, uint8_t volume) = 0;
46   virtual void Mute(std::variant<RawAddress, int> addr_or_group_id) = 0;
47   virtual void UnMute(std::variant<RawAddress, int> addr_or_group_id) = 0;
48 
49   /* Volume Offset Control Service (VOCS) */
50   virtual void SetExtAudioOutVolumeOffset(const RawAddress& address, uint8_t ext_output_id,
51                                           int16_t offset) = 0;
52   virtual void GetExtAudioOutVolumeOffset(const RawAddress& address, uint8_t ext_output_id) = 0;
53 
54   /* Location as per Bluetooth Assigned Numbers.*/
55   virtual void SetExtAudioOutLocation(const RawAddress& address, uint8_t ext_output_id,
56                                       uint32_t location) = 0;
57   virtual void GetExtAudioOutLocation(const RawAddress& address, uint8_t ext_output_id) = 0;
58   virtual void GetExtAudioOutDescription(const RawAddress& address, uint8_t ext_output_id) = 0;
59   virtual void SetExtAudioOutDescription(const RawAddress& address, uint8_t ext_output_id,
60                                          std::string descr) = 0;
61 
62   /* Audio Input Control Service (AICS) */
63   virtual void GetExtAudioInState(const RawAddress& address, uint8_t ext_input_id) = 0;
64   virtual void GetExtAudioInStatus(const RawAddress& address, uint8_t ext_input_id) = 0;
65   virtual void GetExtAudioInType(const RawAddress& address, uint8_t ext_input_id) = 0;
66   virtual void GetExtAudioInGainProps(const RawAddress& address, uint8_t ext_input_id) = 0;
67   virtual void GetExtAudioInDescription(const RawAddress& address, uint8_t ext_input_id) = 0;
68   virtual void SetExtAudioInDescription(const RawAddress& address, uint8_t ext_input_id,
69                                         std::string descr) = 0;
70   virtual void SetExtAudioInGainSetting(const RawAddress& address, uint8_t ext_input_id,
71                                         int8_t gain_setting) = 0;
72   virtual void SetExtAudioInGainMode(const RawAddress& address, uint8_t ext_input_id,
73                                      bluetooth::aics::GainMode gain_mode) = 0;
74   virtual void SetExtAudioInMute(const RawAddress& address, uint8_t ext_input_id,
75                                  bluetooth::aics::Mute mute) = 0;
76 };
77