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/*
* Copyright 2022 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.
*/
#pragma once
#include <android/hardware/bluetooth/audio/2.1/types.h>
#include <hardware/audio.h>
#include <condition_variable>
#include <mutex>
#include <unordered_map>
#include "device_port_proxy.h"
enum class BluetoothStreamState : uint8_t;
namespace android {
namespace bluetooth {
namespace audio {
namespace hidl {
using SessionType_2_1 =
::android::hardware::bluetooth::audio::V2_1::SessionType;
class BluetoothAudioPortHidl : public BluetoothAudioPort {
public:
BluetoothAudioPortHidl();
virtual ~BluetoothAudioPortHidl() = default;
bool SetUp(audio_devices_t devices) override;
void TearDown() override;
void ForcePcmStereoToMono(bool force) override { is_stereo_to_mono_ = force; }
bool Start() override;
bool Suspend() override;
void Stop() override;
bool GetPresentationPosition(uint64_t* delay_ns, uint64_t* bytes,
timespec* timestamp) const override;
void UpdateSourceMetadata(
const source_metadata* source_metadata) const override;
BluetoothStreamState GetState() const override;
void SetState(BluetoothStreamState state) override;
bool IsA2dp() const override {
return session_type_hidl_ ==
SessionType_2_1::A2DP_SOFTWARE_ENCODING_DATAPATH ||
session_type_hidl_ ==
SessionType_2_1::A2DP_HARDWARE_OFFLOAD_DATAPATH;
}
bool GetPreferredDataIntervalUs(size_t* interval_us) const override;
protected:
SessionType_2_1 session_type_hidl_;
uint16_t cookie_;
BluetoothStreamState state_;
// WR to support Mono: True if fetching Stereo and mixing into Mono
bool is_stereo_to_mono_ = false;
bool in_use() const;
private:
mutable std::mutex cv_mutex_;
std::condition_variable internal_cv_;
bool init_session_type(audio_devices_t device);
bool CondwaitState(BluetoothStreamState state);
void ControlResultHandler(
const ::android::hardware::bluetooth::audio::V2_0::Status& status);
void SessionChangedHandler();
};
class BluetoothAudioPortHidlOut : public BluetoothAudioPortHidl {
public:
~BluetoothAudioPortHidlOut();
size_t WriteData(const void* buffer, size_t bytes) const override;
bool LoadAudioConfig(audio_config_t* audio_cfg) const override;
};
class BluetoothAudioPortHidlIn : public BluetoothAudioPortHidl {
public:
~BluetoothAudioPortHidlIn();
size_t ReadData(void* buffer, size_t bytes) const override;
bool LoadAudioConfig(audio_config_t* audio_cfg) const override;
};
} // namespace hidl
} // namespace audio
} // namespace bluetooth
} // namespace android
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