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 "v2_0/ibattery_interface.h"
26
27namespace OHOS {
28namespace PowerMgr {
29class PowerSupplyProvider {
30public:
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
50private:
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