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/*
* Copyright 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_INCLUDE_BT_HEARING_AID_H
#define ANDROID_INCLUDE_BT_HEARING_AID_H
#include <hardware/bluetooth.h>
#include <raw_address.h>
namespace bluetooth {
namespace hearing_aid {
enum class ConnectionState {
DISCONNECTED = 0,
CONNECTING,
CONNECTED,
DISCONNECTING
};
class HearingAidCallbacks {
public:
virtual ~HearingAidCallbacks() = default;
/** Callback for profile connection state change */
virtual void OnConnectionState(ConnectionState state,
const RawAddress& address) = 0;
/** Callback for device being available. Is executed when devices are loaded
* from storage on stack bringup, and when new device is connected to profile.
* Main purpose of this callback is to keep its users informed of device
* capabilities and hiSyncId.
*/
virtual void OnDeviceAvailable(uint8_t capabilities, uint64_t hiSyncId,
const RawAddress& address) = 0;
};
class HearingAidInterface {
public:
virtual ~HearingAidInterface() = default;
/** Register the Hearing Aid callbacks */
virtual void Init(HearingAidCallbacks* callbacks) = 0;
/** Connect to Hearing Aid */
virtual void Connect(const RawAddress& address) = 0;
/** Disconnect from Hearing Aid */
virtual void Disconnect(const RawAddress& address) = 0;
/** Add a hearing aid device to acceptlist */
virtual void AddToAcceptlist(const RawAddress& address) = 0;
/** Set the volume */
virtual void SetVolume(int8_t volume) = 0;
/** Closes the interface. */
virtual void Cleanup(void) = 0;
/* Called when Hearing Aid is unbonded. */
virtual void RemoveDevice(const RawAddress& address) = 0;
};
} // namespace hearing_aid
} // namespace bluetooth
#endif /* ANDROID_INCLUDE_BT_HEARING_AID_H */
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