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 __SENSORS_H__ 18 #define __SENSORS_H__ 19 20 #include <string> 21 #include <tuple> 22 #include <unordered_map> 23 24 #include <android/hardware/thermal/1.1/IThermal.h> 25 26 namespace android { 27 namespace hardware { 28 namespace thermal { 29 namespace V1_1 { 30 namespace implementation { 31 32 using ::android::hardware::thermal::V1_0::Temperature; 33 using ::android::hardware::thermal::V1_0::TemperatureType; 34 35 class Sensors { 36 public: 37 Sensors() = default; 38 ~Sensors() = default; 39 Sensors(const Sensors&) = delete; 40 void operator=(const Sensors&) = delete; 41 42 std::string getSensorPath(const std::string& sensor_name); 43 // Returns true if add was successful, false otherwise. 44 bool addSensor( 45 const std::string& sensor_name, const std::string& path, 46 const float throttling_threshold, const float shutdown_threshold, 47 const float vr_threshold, const TemperatureType& type); 48 // If sensor is not found in the sensor names to path map, this will set 49 // data and file path to empty and return false. If the sensor is found, 50 // this function will fill in data and file_path accordingly then return 51 // true. 52 bool readSensorFile( 53 const std::string& sensor_name, std::string* data, 54 std::string* file_path) const; 55 bool readTemperature( 56 const std::string& sensor_name, const float mult, 57 Temperature* out) const; getNumSensors()58 size_t getNumSensors() const { return sensor_name_to_data_map_.size(); } 59 60 private: 61 // A map containing sensor names along with its thermal zone number, its 62 // thresholds, and its type. The tuple is formatted as such: 63 // <path, throttling threshold, shutdown threshold, vr threshold, type> 64 std::unordered_map<std::string, std::tuple< 65 std::string, float, float, float, TemperatureType>> 66 sensor_name_to_data_map_; 67 }; 68 69 } // namespace implementation 70 } // namespace V1_1 71 } // namespace thermal 72 } // namespace hardware 73 } // namespace android 74 75 #endif // __SENSORS_H__ 76 77