1 /*
2  * Copyright (C) 2022 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 HARDWARE_GOOGLE_PIXEL_PIXELSTATS_BATTERYHEALTHREPORTER_H
18 #define HARDWARE_GOOGLE_PIXEL_PIXELSTATS_BATTERYHEALTHREPORTER_H
19 
20 #include <aidl/android/frameworks/stats/IStats.h>
21 
22 namespace android {
23 namespace hardware {
24 namespace google {
25 namespace pixel {
26 
27 using aidl::android::frameworks::stats::IStats;
28 
29 /**
30  * A class to upload battery capacity metrics
31  */
32 class BatteryHealthReporter {
33   public:
34     BatteryHealthReporter();
35     void checkAndReportStatus(const std::shared_ptr<IStats> &stats_client);
36 
37   private:
38     bool reportBatteryHealthStatus(const std::shared_ptr<IStats> &stats_client);
39     void reportBatteryHealthStatusEvent(const std::shared_ptr<IStats> &stats_client,
40                                         const char *line);
41     bool reportBatteryHealthUsage(const std::shared_ptr<IStats> &stats_client);
42     void reportBatteryHealthUsageEvent(const std::shared_ptr<IStats> &stats_client,
43                                        const char *line);
44 
45     int64_t report_time_ = 0;
46     int64_t getTimeSecs();
47 
48     // Proto messages are 1-indexed and VendorAtom field numbers start at 2, so
49     // store everything in the values array at the index of the field number
50     // -2.
51     const int kVendorAtomOffset = 2;
52 
53     const std::string kBatteryHealthStatusPath =
54             "/sys/class/power_supply/battery/health_index_stats";
55     const std::string kBatteryHealthUsagePath = "/sys/class/power_supply/battery/swelling_data";
56 };
57 
58 }  // namespace pixel
59 }  // namespace google
60 }  // namespace hardware
61 }  // namespace android
62 
63 #endif  // HARDWARE_GOOGLE_PIXEL_PIXELSTATS_BATTERYHEALTHREPORTER_H
64