/* * 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> 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 white list */ virtual void AddToWhiteList(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 */