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Commit cb6c5d3f authored by Hansong Zhang's avatar Hansong Zhang
Browse files

Simple stack bring up 

Just bring up the HAL transportation layer

Test: unit test
Change-Id: I94641d3008ce155d13df6ffe78f3710b3efca645
parent 45253cbf

system/gd/Android.bp

+1 −0
Original line number Diff line number Diff line
@@ -98,6 +98,7 @@ cc_library { 
        },

    },

    srcs: [

        "stack_manager.cc",

        ":BluetoothCommonSources",

        ":BluetoothPacketSources",

    ]

system/gd/stack_manager.cc

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/*

 * Copyright 2019 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.

 */



#include "stack_manager.h"



#include <chrono>

#include <future>

#include <queue>



#include "hal/hci_hal.h"

#include "os/handler.h"

#include "os/log.h"



using ::bluetooth::hal::BluetoothHciHalCallbacks;

using ::bluetooth::hal::BluetoothInitializationCompleteCallback;

using ::bluetooth::hal::HciPacket;

using ::bluetooth::hal::Status;

using ::bluetooth::os::Handler;

using ::bluetooth::os::Thread;



namespace bluetooth {

namespace {

std::promise<void>* startup_promise;



class InitCallback : public BluetoothInitializationCompleteCallback {

 public:

  void initializationComplete(Status status) override {

    ASSERT(status == Status::SUCCESS);

    startup_promise->set_value();

  }

} init_callback;



Thread* main_thread_;



}  // namespace



void StackManager::StartUp() {

  startup_promise = new std::promise<void>;

  ::bluetooth::hal::GetBluetoothHciHal()->initialize(&init_callback);

  auto init_status = startup_promise->get_future().wait_for(std::chrono::seconds(3));

  ASSERT_LOG(init_status == std::future_status::ready, "Can't initialize HCI HAL");

  delete startup_promise;



  main_thread_ = new Thread("main_thread", Thread::Priority::NORMAL);



  LOG_INFO("init complete");

  // Bring up HCI layer

}



void StackManager::ShutDown() {

  // Delete HCI layer

  delete main_thread_;

  ::bluetooth::hal::GetBluetoothHciHal()->close();

}

}  // namespace bluetooth

system/gd/stack_manager.h

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Original line number Diff line number Diff line 
/*

 * Copyright 2019 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



namespace bluetooth {



class StackManager {

 public:

  static StackManager* Get() {

    static StackManager instance;

    return &instance;

  }



  // Start up the stack, init HCI HAL

  void StartUp();



  // Shut down the stack, close HCI HAL

  void ShutDown();



 private:

  StackManager() = default;

};



}  // namespace bluetooth