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_CYCLECOUNTBACKUPRESTORE_H 18 #define HARDWARE_GOOGLE_PIXEL_HEALTH_CYCLECOUNTBACKUPRESTORE_H 19 20 #include <android-base/file.h> 21 #include <android-base/logging.h> 22 #include <android-base/strings.h> 23 #include <string> 24 25 namespace hardware { 26 namespace google { 27 namespace pixel { 28 namespace health { 29 30 class CycleCountBackupRestore { 31 public: 32 CycleCountBackupRestore(int nb_buckets, const char *sysfs_path, const char *persist_path, 33 const char *serial_path = ""); 34 void Restore(); 35 void Backup(int battery_level); 36 37 private: 38 const char *kPersistSerial = "/persist/battery/serial_number"; 39 40 int nb_buckets_; 41 int *sw_bins_; 42 int *hw_bins_; 43 int saved_soc_; 44 int soc_inc_; 45 std::string sysfs_path_; 46 std::string persist_path_; 47 std::string serial_path_; 48 49 void Read(const std::string &path, int *bins); 50 void Write(int *bins, const std::string &path); 51 void UpdateAndSave(); 52 bool CheckSerial(); 53 }; 54 55 } // namespace health 56 } // namespace pixel 57 } // namespace google 58 } // namespace hardware 59 60 #endif // #ifndef HARDWARE_GOOGLE_PIXEL_HEALTH_CYCLECOUNTBACKUPRESTORE_H 61