You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
97 lines
3.8 KiB
97 lines
3.8 KiB
4 months ago
|
/*
|
||
|
|
* Copyright (C) 2020 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef CPP_POWERPOLICY_CLIENT_INCLUDE_POWERPOLICYCLIENTBASE_H_
|
||
|
|
#define CPP_POWERPOLICY_CLIENT_INCLUDE_POWERPOLICYCLIENTBASE_H_
|
||
|
|
|
||
|
|
#include <aidl/android/frameworks/automotive/powerpolicy/BnCarPowerPolicyChangeCallback.h>
|
||
|
|
#include <aidl/android/frameworks/automotive/powerpolicy/BnCarPowerPolicyServer.h>
|
||
|
|
#include <aidl/android/frameworks/automotive/powerpolicy/CarPowerPolicyFilter.h>
|
||
|
|
#include <android-base/result.h>
|
||
|
|
|
||
|
|
#include <shared_mutex>
|
||
|
|
#include <thread> // NOLINT(build/c++11)
|
||
|
|
#include <vector>
|
||
|
|
|
||
|
|
namespace android {
|
||
|
|
namespace frameworks {
|
||
|
|
namespace automotive {
|
||
|
|
namespace powerpolicy {
|
||
|
|
|
||
|
|
// Utility function to test if a PowerComponent list has the given component.
|
||
|
|
bool hasComponent(
|
||
|
|
const std::vector<::aidl::android::frameworks::automotive::powerpolicy::PowerComponent>&
|
||
|
|
components,
|
||
|
|
::aidl::android::frameworks::automotive::powerpolicy::PowerComponent component);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* PowerPolicyClientBase handles the connection to car power policy daemon and wraps
|
||
|
|
* ICarPowerPolicyChangeCallback in order to help HALs handle the policy change easier.
|
||
|
|
*
|
||
|
|
* In the inheriting class, the change notifiction can be handled as follows:
|
||
|
|
* 1. Implement getComponentsOfInterest() so that it returns the vector of components of interest.
|
||
|
|
* 2. Override ICarPowerPolicyChangeCallbackk::onPolicyChanged callback.
|
||
|
|
* 3. Check if the component of interest is in enabled or disabled components.
|
||
|
|
* 4. Handle each case.
|
||
|
|
*
|
||
|
|
* ScopedAStatus PowerPolicyClient::onPolicyChanged(const CarPowerPolicy& powerPolicy) {
|
||
|
|
* if (hasComponent(powerPolicy.enabledComponents, PowerComponent::AUDIO)) {
|
||
|
|
* // Do something when AUDIO is enabled.
|
||
|
|
* } else if (hasComponent(powerPolicy.disabledComponents, PowerComponent::AUDIO)) {
|
||
|
|
* // Do something when AUDIO is disabled.
|
||
|
|
* }
|
||
|
|
* return ScopedAStatus::ok();
|
||
|
|
* }
|
||
|
|
*/
|
||
|
|
class PowerPolicyClientBase :
|
||
|
|
public ::aidl::android::frameworks::automotive::powerpolicy::BnCarPowerPolicyChangeCallback {
|
||
|
|
public:
|
||
|
|
static void onBinderDied(void* cookie);
|
||
|
|
|
||
|
|
// When initialization fails, this callback is invoked from a thread other than the main thread.
|
||
|
|
virtual void onInitFailed() {}
|
||
|
|
|
||
|
|
// Implement this method to specify components of interest.
|
||
|
|
virtual std::vector<::aidl::android::frameworks::automotive::powerpolicy::PowerComponent>
|
||
|
|
getComponentsOfInterest() = 0;
|
||
|
|
|
||
|
|
// init makes connection to power policy daemon and registers to policy change in the
|
||
|
|
// background. Call this method one time when you want to listen to power policy changes.
|
||
|
|
void init();
|
||
|
|
|
||
|
|
void handleBinderDeath();
|
||
|
|
|
||
|
|
protected:
|
||
|
|
PowerPolicyClientBase();
|
||
|
|
virtual ~PowerPolicyClientBase();
|
||
|
|
|
||
|
|
private:
|
||
|
|
android::base::Result<void> connectToDaemon();
|
||
|
|
|
||
|
|
std::thread mConnectionThread;
|
||
|
|
mutable std::shared_mutex mRWMutex;
|
||
|
|
std::shared_ptr<::aidl::android::frameworks::automotive::powerpolicy::ICarPowerPolicyServer>
|
||
|
|
mPolicyServer = nullptr; // GUARDED_BY(mRWMutext)
|
||
|
|
::ndk::ScopedAIBinder_DeathRecipient mDeathRecipient;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace powerpolicy
|
||
|
|
} // namespace automotive
|
||
|
|
} // namespace frameworks
|
||
|
|
} // namespace android
|
||
|
|
|
||
|
|
#endif // CPP_POWERPOLICY_CLIENT_INCLUDE_POWERPOLICYCLIENTBASE_H_
|