1 /*
2  * Copyright (C) 2018 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_HEALTH_LOWBATTERYSHUTDOWNMETRICS_H
18 #define HARDWARE_GOOGLE_PIXEL_HEALTH_LOWBATTERYSHUTDOWNMETRICS_H
19 
20 #include <aidl/android/hardware/health/HealthInfo.h>
21 #include <android-base/file.h>
22 #include <android-base/logging.h>
23 #include <android-base/properties.h>
24 #include <android-base/strings.h>
25 #include <batteryservice/BatteryService.h>
26 #include <math.h>
27 #include <time.h>
28 #include <utils/Timers.h>
29 
30 #include <string>
31 
32 namespace hardware {
33 namespace google {
34 namespace pixel {
35 namespace health {
36 
37 class LowBatteryShutdownMetrics {
38   public:
39     LowBatteryShutdownMetrics(
40             const char *const voltage_avg,
41             const char *const persist_prop = "persist.vendor.shutdown.voltage_avg");
42     // Deprecated. Use logShutdownVoltage(const HealthInfo&)
43     void logShutdownVoltage(struct android::BatteryProperties *props);
44     void logShutdownVoltage(const aidl::android::hardware::health::HealthInfo &health_info);
45 
46   private:
47     const char *const kVoltageAvg;
48     const char *const kPersistProp;
49 
50     // Helps enforce that we only record kVoltageAvg once per boot cycle
51     bool prop_written_;
52     // Help us avoid polling kPersistProp if it's empty
53     bool prop_empty_;
54 
55     bool saveVoltageAvg();
56     void readStatus();
57     bool uploadVoltageAvg();
58 };
59 
60 }  // namespace health
61 }  // namespace pixel
62 }  // namespace google
63 }  // namespace hardware
64 
65 #endif
66