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 #include "types/raw_address.h" 23 24 class VolumeControl { 25 public: 26 virtual ~VolumeControl() = default; 27 28 static void Initialize(bluetooth::vc::VolumeControlCallbacks* callbacks); 29 static void CleanUp(); 30 static VolumeControl* Get(); 31 static void DebugDump(int fd); 32 33 static void AddFromStorage(const RawAddress& address, bool auto_connect); 34 35 static bool IsVolumeControlRunning(); 36 37 /* Volume Control Server (VCS) */ 38 virtual void Connect(const RawAddress& address) = 0; 39 virtual void Disconnect(const RawAddress& address) = 0; 40 virtual void SetVolume(std::variant<RawAddress, int> addr_or_group_id, 41 uint8_t volume) = 0; 42 virtual void Mute(std::variant<RawAddress, int> addr_or_group_id) = 0; 43 virtual void UnMute(std::variant<RawAddress, int> addr_or_group_id) = 0; 44 45 /* Volume Offset Control Service (VOCS) */ 46 virtual void SetExtAudioOutVolumeOffset(const RawAddress& address, 47 uint8_t ext_output_id, 48 int16_t offset) = 0; 49 virtual void GetExtAudioOutVolumeOffset(const RawAddress& address, 50 uint8_t ext_output_id) = 0; 51 52 /* Location as per Bluetooth Assigned Numbers.*/ 53 virtual void SetExtAudioOutLocation(const RawAddress& address, 54 uint8_t ext_output_id, 55 uint32_t location) = 0; 56 virtual void GetExtAudioOutLocation(const RawAddress& address, 57 uint8_t ext_output_id) = 0; 58 virtual void GetExtAudioOutDescription(const RawAddress& address, 59 uint8_t ext_output_id) = 0; 60 virtual void SetExtAudioOutDescription(const RawAddress& address, 61 uint8_t ext_output_id, 62 std::string descr) = 0; 63 }; 64