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//
// Copyright (C) 2017 Google, Inc.
//
// 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.
//
#pragma once
#include <hardware/bluetooth.h>
#include <hardware/bt_av.h>
#include <vector>
#include "types/raw_address.h"
namespace bluetooth {
namespace hal {
class BluetoothAvInterface {
public:
class A2dpSourceObserver {
public:
virtual void ConnectionStateCallback(BluetoothAvInterface* iface,
const RawAddress& bd_addr,
btav_connection_state_t state);
virtual void AudioStateCallback(BluetoothAvInterface* iface,
const RawAddress& bd_addr,
btav_audio_state_t state);
virtual void AudioConfigCallback(
BluetoothAvInterface* iface, const RawAddress& bd_addr,
const btav_a2dp_codec_config_t& codec_config,
const std::vector<btav_a2dp_codec_config_t> codecs_local_capabilities,
const std::vector<btav_a2dp_codec_config_t>
codecs_selectable_capabilities);
virtual bool MandatoryCodecPreferredCallback(BluetoothAvInterface* iface,
const RawAddress& bd_addr);
protected:
virtual ~A2dpSourceObserver() = default;
};
class A2dpSinkObserver {
public:
virtual void ConnectionStateCallback(BluetoothAvInterface* iface,
const RawAddress& bd_addr,
btav_connection_state_t state);
virtual void AudioStateCallback(BluetoothAvInterface* iface,
const RawAddress& bd_addr,
btav_audio_state_t state);
virtual void AudioConfigCallback(BluetoothAvInterface* iface,
const RawAddress& bd_addr,
uint32_t sample_rate,
uint8_t channel_count);
protected:
virtual ~A2dpSinkObserver() = default;
};
static bool Initialize();
static void CleanUp();
static bool IsInitialized();
static void InitializeForTesting(BluetoothAvInterface* test_instance);
static BluetoothAvInterface* Get();
virtual bool A2dpSourceEnable(
std::vector<btav_a2dp_codec_config_t> codec_priorities) = 0;
virtual void A2dpSourceDisable() = 0;
virtual bool A2dpSinkEnable() = 0;
virtual void A2dpSinkDisable() = 0;
virtual void AddA2dpSourceObserver(A2dpSourceObserver* observer) = 0;
virtual void RemoveA2dpSourceObserver(A2dpSourceObserver* observer) = 0;
virtual void AddA2dpSinkObserver(A2dpSinkObserver* observer) = 0;
virtual void RemoveA2dpSinkObserver(A2dpSinkObserver* observer) = 0;
virtual const btav_source_interface_t* GetA2dpSourceHALInterface() = 0;
virtual const btav_sink_interface_t* GetA2dpSinkHALInterface() = 0;
protected:
BluetoothAvInterface() = default;
BluetoothAvInterface(const BluetoothAvInterface&) = delete;
BluetoothAvInterface& operator=(const BluetoothAvInterface&) = delete;
virtual ~BluetoothAvInterface() = default;
};
} // namespace hal
} // namespace bluetooth
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