140 lines
4.4 KiB
C++
140 lines
4.4 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <nativepower/power_manager_client.h>
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#include <base/bind.h>
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#include <base/logging.h>
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#include <binder/IBinder.h>
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#include <binderwrapper/binder_wrapper.h>
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#include <nativepower/constants.h>
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#include <nativepower/wake_lock.h>
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#include <powermanager/PowerManager.h>
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namespace android {
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namespace {
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// Returns the string corresponding to |reason|. Values are hardcoded in
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// core/java/android/os/PowerManager.java.
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String16 ShutdownReasonToString16(ShutdownReason reason) {
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switch (reason) {
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case ShutdownReason::DEFAULT:
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return String16();
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case ShutdownReason::USER_REQUESTED:
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return String16(kShutdownReasonUserRequested);
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default:
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LOG(ERROR) << "Unknown shutdown reason " << static_cast<int>(reason);
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return String16();
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}
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}
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// Returns the string corresponding to |reason|. Values are hardcoded in
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// core/java/android/os/PowerManager.java.
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String16 RebootReasonToString16(RebootReason reason) {
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switch (reason) {
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case RebootReason::DEFAULT:
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return String16();
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case RebootReason::RECOVERY:
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return String16(kRebootReasonRecovery);
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default:
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LOG(ERROR) << "Unknown reboot reason " << static_cast<int>(reason);
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return String16();
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}
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}
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} // namespace
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PowerManagerClient::PowerManagerClient()
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: weak_ptr_factory_(this) {}
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PowerManagerClient::~PowerManagerClient() {
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if (power_manager_.get()) {
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BinderWrapper::Get()->UnregisterForDeathNotifications(
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IInterface::asBinder(power_manager_));
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}
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}
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bool PowerManagerClient::Init() {
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sp<IBinder> power_manager_binder =
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BinderWrapper::Get()->GetService(kPowerManagerServiceName);
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if (!power_manager_binder.get()) {
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LOG(ERROR) << "Didn't get " << kPowerManagerServiceName << " service";
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return false;
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}
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BinderWrapper::Get()->RegisterForDeathNotifications(
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power_manager_binder,
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base::Bind(&PowerManagerClient::OnPowerManagerDied,
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weak_ptr_factory_.GetWeakPtr()));
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power_manager_ = interface_cast<IPowerManager>(power_manager_binder);
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return true;
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}
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std::unique_ptr<WakeLock> PowerManagerClient::CreateWakeLock(
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const std::string& tag,
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const std::string& package) {
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std::unique_ptr<WakeLock> lock(new WakeLock(tag, package, this));
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if (!lock->Init())
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lock.reset();
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return lock;
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}
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bool PowerManagerClient::Suspend(base::TimeDelta event_uptime,
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SuspendReason reason,
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int flags) {
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DCHECK(power_manager_.get());
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status_t status = power_manager_->goToSleep(
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event_uptime.InMilliseconds(), static_cast<int>(reason), flags);
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if (status != OK) {
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LOG(ERROR) << "Suspend request failed with status " << status;
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return false;
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}
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return true;
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}
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bool PowerManagerClient::ShutDown(ShutdownReason reason) {
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DCHECK(power_manager_.get());
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status_t status = power_manager_->shutdown(false /* confirm */,
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ShutdownReasonToString16(reason),
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false /* wait */);
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if (status != OK) {
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LOG(ERROR) << "Shutdown request failed with status " << status;
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return false;
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}
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return true;
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}
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bool PowerManagerClient::Reboot(RebootReason reason) {
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DCHECK(power_manager_.get());
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status_t status = power_manager_->reboot(false /* confirm */,
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RebootReasonToString16(reason),
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false /* wait */);
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if (status != OK) {
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LOG(ERROR) << "Reboot request failed with status " << status;
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return false;
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}
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return true;
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}
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void PowerManagerClient::OnPowerManagerDied() {
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LOG(WARNING) << "Power manager died";
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power_manager_.clear();
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// TODO: Try to get a new handle periodically; also consider notifying
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// previously-created WakeLock objects so they can reacquire locks.
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}
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} // namespace android
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