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      1 /*
      2  * Copyright (C) 2013 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef HEALTHD_BATTERYMONITOR_H
     18 #define HEALTHD_BATTERYMONITOR_H
     19 
     20 #include <batteryservice/BatteryService.h>
     21 #include <binder/IInterface.h>
     22 #include <utils/String8.h>
     23 #include <utils/Vector.h>
     24 
     25 #include <healthd/healthd.h>
     26 
     27 namespace android {
     28 
     29 class BatteryMonitor {
     30   public:
     31 
     32     enum PowerSupplyType {
     33         ANDROID_POWER_SUPPLY_TYPE_UNKNOWN = 0,
     34         ANDROID_POWER_SUPPLY_TYPE_AC,
     35         ANDROID_POWER_SUPPLY_TYPE_USB,
     36         ANDROID_POWER_SUPPLY_TYPE_WIRELESS,
     37         ANDROID_POWER_SUPPLY_TYPE_BATTERY
     38     };
     39 
     40     BatteryMonitor();
     41     void init(struct healthd_config *hc);
     42     bool update(void);
     43     int getChargeStatus();
     44     status_t getProperty(int id, struct BatteryProperty *val);
     45     void dumpState(int fd);
     46 
     47   private:
     48     struct healthd_config *mHealthdConfig;
     49     Vector<String8> mChargerNames;
     50     bool mBatteryDevicePresent;
     51     bool mAlwaysPluggedDevice;
     52     int mBatteryFixedCapacity;
     53     int mBatteryFixedTemperature;
     54     struct BatteryProperties props;
     55 
     56     int getBatteryStatus(const char* status);
     57     int getBatteryHealth(const char* status);
     58     int readFromFile(const String8& path, std::string* buf);
     59     PowerSupplyType readPowerSupplyType(const String8& path);
     60     bool getBooleanField(const String8& path);
     61     int getIntField(const String8& path);
     62 };
     63 
     64 }; // namespace android
     65 
     66 #endif // HEALTHD_BATTERY_MONTIOR_H
     67