1 /* 2 * Copyright (c) 2022-2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef POWER_SUPPLY_PROVIDER_H 17 #define POWER_SUPPLY_PROVIDER_H 18 19 #include <cstdio> 20 #include <cstring> 21 #include <climits> 22 #include <map> 23 #include <vector> 24 #include "batteryd_api.h" 25 #include "v1_2/ibattery_interface.h" 26 27 namespace OHOS { 28 namespace PowerMgr { 29 class PowerSupplyProvider { 30 public: 31 // Keep it same as the BatteryChargeState in battery_info.h 32 enum BatteryChargeState { 33 CHARGE_STATE_NONE = 0, 34 CHARGE_STATE_ENABLE, 35 CHARGE_STATE_DISABLE, 36 CHARGE_STATE_FULL, 37 CHARGE_STATE_RESERVED, 38 }; 39 40 PowerSupplyProvider(); 41 virtual ~PowerSupplyProvider() = default; 42 43 int32_t InitPowerSupplySysfs(); 44 void InitDefaultSysfs(); 45 int32_t ParseCapacity(int32_t* capacity) const; 46 int32_t ParseTemperature(int32_t* temperature) const; 47 int32_t ParseChargeState(int32_t* chargeState) const; 48 void InitBatteryPath(); 49 50 private: 51 struct BatterySysfsInfo { 52 char* name; 53 std::string capacityPath; 54 std::string temperaturePath; 55 std::string chargeStatePath; 56 } batterySysfsInfo_; 57 58 static inline int32_t ParseInt(const char* str); 59 static inline void Trim(char* str); 60 static int32_t ChargeStateEnumConverter(const char* str); 61 62 void TraversalNode(); 63 void CheckSubfolderNode(const std::string& path); 64 void FormatPath(std::string& path, size_t size, const char* format, const char* basePath, const char* name) const; 65 void FormatSysfsPaths(); 66 int32_t ReadSysfsFile(const char* path, char* buf, size_t size) const; 67 int32_t ReadBatterySysfsToBuff(const char* path, char* buf, size_t size) const; 68 void CreateFile(const std::string& path, const std::string& content); 69 void CreateMockTechPath(std::string& mockTechPath); 70 void CreateMockChargerPath(std::string& mockChargerPath); 71 void CreateMockBatteryPath(std::string& mockBatteryPath); 72 std::vector<std::string> nodeNames_; 73 std::map<std::string, std::string> nodeNamePathMap_; 74 std::string path_; 75 int32_t index_; 76 }; 77 } // namespace PowerMgr 78 } // namespace OHOS 79 80 #endif // POWER_SUPPLY_PROVIDER_H 81