64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
/*
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* Copyright (C) 2020 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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#pragma once
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#include <PowerStatsAidl.h>
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#include <unordered_map>
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namespace aidl {
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namespace android {
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namespace hardware {
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namespace power {
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namespace stats {
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class IioEnergyMeterDataProvider : public PowerStats::IEnergyMeterDataProvider {
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public:
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IioEnergyMeterDataProvider(const std::vector<const std::string> &deviceNames,
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const bool useSelector = false);
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// Methods from PowerStats::IRailEnergyDataProvider
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ndk::ScopedAStatus readEnergyMeter(const std::vector<int32_t> &in_channelIds,
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std::vector<EnergyMeasurement> *_aidl_return) override;
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ndk::ScopedAStatus getEnergyMeterInfo(std::vector<Channel> *_aidl_return) override;
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private:
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void findIioEnergyMeterNodes();
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void parseEnabledRails();
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int parseEnergyValue(std::string path);
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int parseEnergyContents(const std::string &contents);
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std::mutex mLock;
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std::unordered_map<std::string, std::string> mDevicePaths; // key: path, value: device name
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std::unordered_map<std::string, int32_t> mChannelIds; // key: name, value: id
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std::vector<Channel> mChannelInfos;
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std::vector<EnergyMeasurement> mReading;
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const std::vector<const std::string> kDeviceNames;
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const std::string kDeviceType = "iio:device";
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const std::string kIioRootDir = "/sys/bus/iio/devices/";
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const std::string kNameNode = "/name";
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const std::string kEnabledRailsNode = "/enabled_rails";
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const std::string kEnergyValueNode = "/energy_value";
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};
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} // namespace stats
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} // namespace power
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} // namespace hardware
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} // namespace android
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} // namespace aidl
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