BatteryMonitor.h revision b45f1f5bd00c9a8380960d7c439eb14b3a334f50 
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 <binder/IInterface.h>
21#include <utils/String8.h>
22#include <utils/Vector.h>
23
24#include "BatteryPropertiesRegistrar.h"
25
26namespace android {
27
28class BatteryPropertiesRegistrar;
29
30class BatteryMonitor {
31  public:
32
33    enum PowerSupplyType {
34        ANDROID_POWER_SUPPLY_TYPE_UNKNOWN = 0,
35        ANDROID_POWER_SUPPLY_TYPE_AC,
36        ANDROID_POWER_SUPPLY_TYPE_USB,
37        ANDROID_POWER_SUPPLY_TYPE_WIRELESS,
38        ANDROID_POWER_SUPPLY_TYPE_BATTERY
39    };
40
41    void init(bool nosvcmgr);
42    bool update(void);
43
44  private:
45    String8 mBatteryStatusPath;
46    String8 mBatteryHealthPath;
47    String8 mBatteryPresentPath;
48    String8 mBatteryCapacityPath;
49    String8 mBatteryVoltagePath;
50    String8 mBatteryTemperaturePath;
51    String8 mBatteryTechnologyPath;
52    String8 mBatteryCurrentNowPath;
53    String8 mBatteryChargeCounterPath;
54
55    Vector<String8> mChargerNames;
56
57    sp<BatteryPropertiesRegistrar> mBatteryPropertiesRegistrar;
58
59    int getBatteryStatus(const char* status);
60    int getBatteryHealth(const char* status);
61    int readFromFile(const String8& path, char* buf, size_t size);
62    PowerSupplyType readPowerSupplyType(const String8& path);
63    bool getBooleanField(const String8& path);
64    int getIntField(const String8& path);
65};
66
67}; // namespace android
68
69#endif // HEALTHD_BATTERY_MONTIOR_H
70