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/*
* 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.
*/
#pragma once
#include <PowerStatsAidl.h>
namespace aidl {
namespace android {
namespace hardware {
namespace power {
namespace stats {
class DvfsStateResidencyDataProvider : public PowerStats::IStateResidencyDataProvider {
public:
class Config {
public:
// Power entity name to parse.
std::string powerEntityName;
// List of state pairs (name to display, name to parse).
std::vector<std::pair<std::string, std::string>> states;
};
/*
* path - path to dvfs sysfs node.
* clockRate - clock rate in KHz.
*/
DvfsStateResidencyDataProvider(std::string path, uint64_t clockRate, std::vector<Config> cfgs);
~DvfsStateResidencyDataProvider() = default;
/*
* See IStateResidencyDataProvider::getStateResidencies
*/
bool getStateResidencies(
std::unordered_map<std::string, std::vector<StateResidency>> *residencies) override;
/*
* See IStateResidencyDataProvider::getInfo
*/
std::unordered_map<std::string, std::vector<State>> getInfo() override;
private:
int32_t matchEntity(char const *line);
int32_t matchState(char const *line, const Config& powerEntity);
bool parseState(char const *line, uint64_t *duration, uint64_t *count);
const std::string mPath;
const uint64_t mClockRate;
std::vector<Config> mPowerEntities;
};
} // namespace stats
} // namespace power
} // namespace hardware
} // namespace android
} // namespace aidl
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