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111 lines
3.4 KiB
111 lines
3.4 KiB
/*
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* Copyright (C) 2018 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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#ifndef CAR_LIB_NATIVE_INCLUDE_CARPOWERMANAGER_H_
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#define CAR_LIB_NATIVE_INCLUDE_CARPOWERMANAGER_H_
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#include <binder/Status.h>
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#include <utils/RefBase.h>
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#include "android/car/ICar.h"
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#include "android/car/hardware/power/BnCarPowerStateListener.h"
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#include "android/car/hardware/power/ICarPower.h"
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using android::binder::Status;
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namespace android {
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namespace car {
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namespace hardware {
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namespace power {
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class CarPowerManager : public RefBase {
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public:
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// Enumeration of state change events
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// NOTE: The entries in this enum must match the ones in CarPowerStateListener located in
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// packages/services/Car/car-lib/src/android/car/hardware/power/CarPowerManager.java
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enum class State {
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kInvalid = 0,
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kWaitForVhal = 1,
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kSuspendEnter = 2,
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kSuspendExit = 3,
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kShutdownEnter = 5,
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kOn = 6,
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kShutdownPrepare = 7,
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kShutdownCancelled = 8,
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kFirst = kInvalid,
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kLast = kShutdownCancelled,
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};
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using Listener = std::function<void(State)>;
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CarPowerManager() = default;
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virtual ~CarPowerManager() {
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// Clear the listener if one is set
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clearListener();
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}
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// Removes the listener and turns off callbacks
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// Returns 0 on success
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int clearListener();
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// Request device to shutdown in lieu of suspend at the next opportunity
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// Returns 0 on success
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int requestShutdownOnNextSuspend();
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// Set the callback function. This will execute in the binder thread.
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// Returns 0 on success
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int setListener(Listener listener);
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private:
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class CarPowerStateListener final : public BnCarPowerStateListener {
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public:
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explicit CarPowerStateListener(CarPowerManager* parent) : mParent(parent) {}
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Status onStateChanged(int state) override {
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sp<CarPowerManager> parent = mParent;
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if ((parent == nullptr) || (parent->mListener == nullptr)) {
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ALOGE("CarPowerManagerNative: onStateChanged null pointer detected!");
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} else if ((state < static_cast<int>(State::kFirst)) ||
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(state > static_cast<int>(State::kLast)) ) {
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ALOGE("CarPowerManagerNative: onStateChanged unknown state: %d", state);
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} else {
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// Notify the listener of the state transition
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parent->mListener(static_cast<State>(state));
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}
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return binder::Status::ok();
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};
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private:
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sp<CarPowerManager> mParent;
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};
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bool connectToCarService();
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sp<ICarPower> mICarPower;
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bool mIsConnected;
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Listener mListener;
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sp<CarPowerStateListener> mListenerToService;
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};
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} // namespace power
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} // namespace hardware
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} // namespace car
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} // namespace android
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#endif // CAR_LIB_NATIVE_INCLUDE_CARPOWERMANAGER_H_
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