service: Implement IBluetooth::GetState (6a21a81f) · Commits · e / os / android_packages_modules_Bluetooth

system/service/Android.mk

+3 −1

Original line number	Diff line number	Diff line
		@@ -20,6 +20,7 @@ LOCAL_PATH:= $(call my-dir)
		# ========================================================
		btserviceCommonSrc := \
		adapter.cpp \
		adapter_state.cpp \
		daemon.cpp \
		gatt_server.cpp \
		hal/bluetooth_interface.cpp \
		@@ -66,8 +67,8 @@ ifeq ($(HOST_OS),linux)
		include $(CLEAR_VARS)
		LOCAL_SRC_FILES := \
		$(btserviceCommonSrc) \
		hal/fake_bluetooth_interface.cpp \
		test/adapter_unittest.cpp \
		test/fake_hal_bluetooth_interface.cpp \
		test/fake_hal_util.cpp \
		test/ipc_unix_unittest.cpp \
		test/settings_unittest.cpp \
		@@ -87,6 +88,7 @@ endif
		include $(CLEAR_VARS)
		LOCAL_SRC_FILES := \
		$(btserviceBinderSrc) \
		adapter_state.cpp \
		client/main.cpp
		LOCAL_C_INCLUDES += $(btserviceCommonIncludes)
		LOCAL_CFLAGS += -std=c++11

system/service/adapter.cpp

+34 −12

Original line number	Diff line number	Diff line
		@@ -22,50 +22,70 @@

		namespace bluetooth {

		Adapter::Adapter() : enabled_(false) {
		Adapter::Adapter() : state_(ADAPTER_STATE_OFF) {
		hal::BluetoothInterface::Get()->AddObserver(this);

		// TODO(armansito): Get all initial adapter properties here and set local
		// state.
		hal::BluetoothInterface::Get()->GetHALInterface()->get_adapter_properties();
		}

		Adapter::~Adapter() {
		hal::BluetoothInterface::Get()->RemoveObserver(this);
		}

		bool Adapter::IsEnabled() {
		return enabled_.load();
		AdapterState Adapter::GetState() const {
		return state_.load();
		}

		bool Adapter::IsEnabled() const {
		return state_.load() == ADAPTER_STATE_ON;
		}

		bool Adapter::Enable() {
		if (enabled_.load()) {
		LOG(INFO) << "Adapter already enabled";
		AdapterState current_state = GetState();
		if (current_state != ADAPTER_STATE_OFF) {
		LOG(INFO) << "Adapter not disabled - state: "
		<< AdapterStateToString(current_state);
		return false;
		}

		// Set the state before calling enable() as there might be a race between here
		// and the AdapterStateChangedCallback.
		state_ = ADAPTER_STATE_TURNING_ON;

		int status = hal::BluetoothInterface::Get()->GetHALInterface()->enable();
		if (status != BT_STATUS_SUCCESS) {
		LOG(ERROR) << "Failed to enable Bluetooth - status: "
		<< BtStatusText((const bt_status_t)status);
		state_ = ADAPTER_STATE_OFF;
		return false;
		}

		// TODO(armansito): Notify others of the state change.

		return true;
		}

		bool Adapter::Disable() {
		if (!enabled_) {
		LOG(INFO) << "Adapter already disabled";
		if (!IsEnabled()) {
		LOG(INFO) << "Adapter is not enabled";
		return false;
		}

		AdapterState current_state = GetState();

		// Set the state before calling enable() as there might be a race between here
		// and the AdapterStateChangedCallback.
		state_ = ADAPTER_STATE_TURNING_OFF;

		int status = hal::BluetoothInterface::Get()->GetHALInterface()->disable();
		if (status != BT_STATUS_SUCCESS) {
		LOG(ERROR) << "Failed to disable Bluetooth - status: "
		<< BtStatusText((const bt_status_t)status);
		state_ = current_state;
		return false;
		}

		// TODO(armansito): Notify others of the state change.

		return true;
		}

		@@ -98,16 +118,18 @@ void Adapter::AdapterStateChangedCallback(bt_state_t state) {

		switch (state) {
		case BT_STATE_OFF:
		enabled_ = false;
		state_ = ADAPTER_STATE_OFF;
		break;

		case BT_STATE_ON:
		enabled_ = true;
		state_ = ADAPTER_STATE_ON;
		break;

		default:
		NOTREACHED();
		}

		// TODO(armansito): Notify others of the state change.
		}

		void Adapter::AdapterPropertiesCallback(bt_status_t /* status */,

system/service/adapter.h

+8 −4

Original line number	Diff line number	Diff line
		@@ -22,6 +22,7 @@

		#include <base/macros.h>

		#include "service/adapter_state.h"
		#include "service/hal/bluetooth_interface.h"

		namespace bluetooth {
		@@ -30,10 +31,13 @@ namespace bluetooth {
		class Adapter : hal::BluetoothInterface::Observer {
		public:
		Adapter();
		~Adapter();
		~Adapter() override;

		// Returns the current Adapter state.
		AdapterState GetState() const;

		// Returns true, if the adapter radio is current powered.
		bool IsEnabled();
		bool IsEnabled() const;

		// Enables Bluetooth. This method will send a request to the Bluetooth adapter
		// to power up its radio. Returns true, if the request was successfully sent
		@@ -60,8 +64,8 @@ class Adapter : hal::BluetoothInterface::Observer {
		// Sends a request to set the given HAL adapter property type and value.
		bool SetAdapterProperty(bt_property_type_t type, void* value, int length);

		// True if the adapter radio is currently powered.
		std::atomic_bool enabled_;
		// The current adapter state.
		std::atomic<AdapterState> state_;

		DISALLOW_COPY_AND_ASSIGN(Adapter);
		};

system/service/test/fake_hal_bluetooth_interface.cpp→system/service/adapter_state.cpp

+44 −0

Original line number	Diff line number	Diff line
		@@ -14,35 +14,31 @@
		// limitations under the License.
		//

		#include "service/test/fake_hal_bluetooth_interface.h"
		#include "service/adapter_state.h"

		namespace bluetooth {
		namespace testing {

		FakeHALBluetoothInterface::FakeHALBluetoothInterface(bt_interface_t* hal_iface)
		: hal_iface_(hal_iface) {
		std::string AdapterStateToString(AdapterState state) {
		switch (state) {
		case ADAPTER_STATE_DISCONNECTED:
		return "ADAPTER_STATE_DISCONNECTED";
		case ADAPTER_STATE_CONNECTING:
		return "ADAPTER_STATE_CONNECTING";
		case ADAPTER_STATE_CONNECTED:
		return "ADAPTER_STATE_CONNECTED";
		case ADAPTER_STATE_DISCONNECTING:
		return "ADAPTER_STATE_DISCONNECTING";
		case ADAPTER_STATE_OFF:
		return "ADAPTER_STATE_OFF";
		case ADAPTER_STATE_TURNING_ON:
		return "ADAPTER_STATE_TURNING_ON";
		case ADAPTER_STATE_ON:
		return "ADAPTER_STATE_ON";
		case ADAPTER_STATE_TURNING_OFF:
		return "ADAPTER_STATE_TURNING_OFF";
		default:
		return "unknown state";
		}

		void FakeHALBluetoothInterface::NotifyAdapterStateChanged(bt_state_t state) {
		FOR_EACH_OBSERVER(Observer, observers_, AdapterStateChangedCallback(state));
		}

		void FakeHALBluetoothInterface::AddObserver(Observer* observer) {
		observers_.AddObserver(observer);
		}

		void FakeHALBluetoothInterface::RemoveObserver(Observer* observer) {
		observers_.RemoveObserver(observer);
		}

		const bt_interface_t* FakeHALBluetoothInterface::GetHALInterface() const {
		return hal_iface_;
		}

		const bluetooth_device_t* FakeHALBluetoothInterface::GetHALAdapter() const {
		// TODO(armansito): Do something meaningful here to simulate test behavior.
		return nullptr;
		}

		} // namespace testing
		} // namespace bluetooth

system/service/adapter_state.h

0 → 100644

+42 −0

Original line number	Diff line number	Diff line
		//
		// Copyright (C) 2015 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 <string>

		namespace bluetooth {

		// Possible Adapter states. The values for each enumration have been copied
		// from frameworks/base/core/java/android/bluetooth/BluetoothAdapter.java.
		// These values need to match their android.bluetooth.BluetoothAdapter
		// counterparts for this to be compatible with the framework, hence we
		// redeclare them here.
		enum AdapterState {
		ADAPTER_STATE_DISCONNECTED = 0,
		ADAPTER_STATE_CONNECTING = 1,
		ADAPTER_STATE_CONNECTED = 2,
		ADAPTER_STATE_DISCONNECTING = 3,
		ADAPTER_STATE_OFF = 10,
		ADAPTER_STATE_TURNING_ON = 11,
		ADAPTER_STATE_ON = 12,
		ADAPTER_STATE_TURNING_OFF = 13,
		};

		// Returns a string for the given Adapter state \|state\|.
		std::string AdapterStateToString(AdapterState state);

		} // namespace bluetooth