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 <hardware/bt_vc.h>
21 
22 class VolumeControl {
23  public:
24   virtual ~VolumeControl() = default;
25 
26   static void Initialize(bluetooth::vc::VolumeControlCallbacks* callbacks);
27   static void CleanUp();
28   static VolumeControl* Get();
29   static void DebugDump(int fd);
30 
31   static void AddFromStorage(const RawAddress& address, bool auto_connect);
32 
33   static bool IsVolumeControlRunning();
34 
35   /* Volume Control Server (VCS) */
36   virtual void Connect(const RawAddress& address) = 0;
37   virtual void Disconnect(const RawAddress& address) = 0;
38   virtual void SetVolume(std::variant<RawAddress, int> addr_or_group_id,
39                          uint8_t volume) = 0;
40 };
41