| /* |
| * 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 ANDROID_POWERHALCONTROLLER_H |
| #define ANDROID_POWERHALCONTROLLER_H |
| |
| #include <android-base/thread_annotations.h> |
| #include <android/hardware/power/Boost.h> |
| #include <android/hardware/power/IPower.h> |
| #include <android/hardware/power/IPowerHintSession.h> |
| #include <android/hardware/power/Mode.h> |
| #include <powermanager/PowerHalWrapper.h> |
| |
| namespace android { |
| |
| namespace power { |
| |
| // ------------------------------------------------------------------------------------------------- |
| |
| // Connects to underlying Power HAL handles. |
| class HalConnector { |
| public: |
| HalConnector() = default; |
| virtual ~HalConnector() = default; |
| |
| virtual std::unique_ptr<HalWrapper> connect(); |
| virtual void reset(); |
| }; |
| |
| // ------------------------------------------------------------------------------------------------- |
| |
| // Controller for Power HAL handle. |
| // This relies on HalConnector to connect to the underlying Power HAL |
| // service and reconnects to it after each failed api call. This also ensures |
| // connecting to the service is thread-safe. |
| class PowerHalController : public HalWrapper { |
| public: |
| PowerHalController() : PowerHalController(std::make_unique<HalConnector>()) {} |
| explicit PowerHalController(std::unique_ptr<HalConnector> connector) |
| : mHalConnector(std::move(connector)) {} |
| virtual ~PowerHalController() = default; |
| |
| void init(); |
| |
| virtual HalResult<void> setBoost(hardware::power::Boost boost, int32_t durationMs) override; |
| virtual HalResult<void> setMode(hardware::power::Mode mode, bool enabled) override; |
| virtual HalResult<sp<hardware::power::IPowerHintSession>> createHintSession( |
| int32_t tgid, int32_t uid, const std::vector<int32_t>& threadIds, |
| int64_t durationNanos) override; |
| virtual HalResult<int64_t> getHintSessionPreferredRate() override; |
| |
| private: |
| std::mutex mConnectedHalMutex; |
| std::unique_ptr<HalConnector> mHalConnector; |
| |
| // Shared pointers to keep global pointer and allow local copies to be used in |
| // different threads |
| std::shared_ptr<HalWrapper> mConnectedHal GUARDED_BY(mConnectedHalMutex) = nullptr; |
| const std::shared_ptr<HalWrapper> mDefaultHal = std::make_shared<EmptyHalWrapper>(); |
| |
| std::shared_ptr<HalWrapper> initHal(); |
| template <typename T> |
| HalResult<T> processHalResult(HalResult<T> result, const char* functionName); |
| }; |
| |
| // ------------------------------------------------------------------------------------------------- |
| |
| }; // namespace power |
| |
| }; // namespace android |
| |
| #endif // ANDROID_POWERHALCONTROLLER_H |