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77 lines
2.2 KiB
77 lines
2.2 KiB
/*
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* Copyright 2021 HIMSA II K/S - www.himsa.com.
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* Represented by EHIMA - www.ehima.com
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <hardware/bluetooth.h>
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#include <variant>
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namespace bluetooth {
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namespace vc {
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enum class ConnectionState {
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DISCONNECTED = 0,
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CONNECTING,
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CONNECTED,
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DISCONNECTING
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};
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class VolumeControlCallbacks {
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public:
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virtual ~VolumeControlCallbacks() = default;
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/** Callback for profile connection state change */
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virtual void OnConnectionState(ConnectionState state,
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const RawAddress& address) = 0;
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/* Callback for the volume change changed on the device */
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virtual void OnVolumeStateChanged(const RawAddress& address, uint8_t volume,
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bool mute) = 0;
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/* Callback for the volume change changed on the group*/
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virtual void OnGroupVolumeStateChanged(int group_id, uint8_t volume,
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bool mute) = 0;
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};
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class VolumeControlInterface {
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public:
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virtual ~VolumeControlInterface() = default;
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/** Register the Volume Control callbacks */
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virtual void Init(VolumeControlCallbacks* callbacks) = 0;
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/** Closes the interface */
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virtual void Cleanup(void) = 0;
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/** Connect to Volume Control */
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virtual void Connect(const RawAddress& address) = 0;
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/** Disconnect from Volume Control */
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virtual void Disconnect(const RawAddress& address) = 0;
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/** Called when Volume control devices is unbonded */
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virtual void RemoveDevice(const RawAddress& address) = 0;
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/** Set the volume */
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virtual void SetVolume(std::variant<RawAddress, int> addr_or_group_id,
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uint8_t volume) = 0;
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};
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} /* namespace vc */
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} /* namespace bluetooth */
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