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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.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     void init(struct healthd_config *hc);
     41     bool update(void);
     42     status_t getProperty(int id, struct BatteryProperty *val);
     43     void dumpState(int fd);
     44 
     45   private:
     46     struct healthd_config *mHealthdConfig;
     47     Vector<String8> mChargerNames;
     48     bool mBatteryDevicePresent;
     49     int mBatteryFixedCapacity;
     50     int mBatteryFixedTemperature;
     51     struct BatteryProperties props;
     52 
     53     int getBatteryStatus(const char* status);
     54     int getBatteryHealth(const char* status);
     55     int readFromFile(const String8& path, char* buf, size_t size);
     56     PowerSupplyType readPowerSupplyType(const String8& path);
     57     bool getBooleanField(const String8& path);
     58     int getIntField(const String8& path);
     59 };
     60 
     61 }; // namespace android
     62 
     63 #endif // HEALTHD_BATTERY_MONTIOR_H
     64