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 #pragma once 18 19 #include <aidl/android/hardware/thermal/BnThermal.h> 20 21 #include <mutex> 22 #include <thread> 23 24 #include "thermal-helper.h" 25 26 namespace aidl { 27 namespace android { 28 namespace hardware { 29 namespace thermal { 30 namespace implementation { 31 32 struct CallbackSetting { CallbackSettingCallbackSetting33 CallbackSetting(std::shared_ptr<IThermalChangedCallback> callback, bool is_filter_type, 34 TemperatureType type) 35 : callback(std::move(callback)), is_filter_type(is_filter_type), type(type) {} 36 std::shared_ptr<IThermalChangedCallback> callback; 37 bool is_filter_type; 38 TemperatureType type; 39 }; 40 41 struct CoolingDeviceCallbackSetting { CoolingDeviceCallbackSettingCoolingDeviceCallbackSetting42 CoolingDeviceCallbackSetting(std::shared_ptr<ICoolingDeviceChangedCallback> callback, 43 bool is_filter_type, CoolingType type) 44 : callback(std::move(callback)), is_filter_type(is_filter_type), type(type) {} 45 std::shared_ptr<ICoolingDeviceChangedCallback> callback; 46 bool is_filter_type; 47 CoolingType type; 48 }; 49 50 class Thermal : public BnThermal { 51 public: 52 Thermal(); 53 explicit Thermal(const std::shared_ptr<ThermalHelper> &helper); 54 ~Thermal() = default; 55 ndk::ScopedAStatus getTemperatures(std::vector<Temperature> *_aidl_return) override; 56 ndk::ScopedAStatus getTemperaturesWithType(TemperatureType type, 57 std::vector<Temperature> *_aidl_return) override; 58 59 ndk::ScopedAStatus getTemperatureThresholds( 60 std::vector<TemperatureThreshold> *_aidl_return) override; 61 ndk::ScopedAStatus getTemperatureThresholdsWithType( 62 TemperatureType type, std::vector<TemperatureThreshold> *_aidl_return) override; 63 64 ndk::ScopedAStatus registerThermalChangedCallback( 65 const std::shared_ptr<IThermalChangedCallback> &callback) override; 66 ndk::ScopedAStatus registerThermalChangedCallbackWithType( 67 const std::shared_ptr<IThermalChangedCallback> &callback, 68 TemperatureType type) override; 69 ndk::ScopedAStatus unregisterThermalChangedCallback( 70 const std::shared_ptr<IThermalChangedCallback> &callback) override; 71 72 ndk::ScopedAStatus getCoolingDevices(std::vector<CoolingDevice> *_aidl_return) override; 73 ndk::ScopedAStatus getCoolingDevicesWithType(CoolingType type, 74 std::vector<CoolingDevice> *_aidl_return) override; 75 76 ndk::ScopedAStatus registerCoolingDeviceChangedCallbackWithType( 77 const std::shared_ptr<ICoolingDeviceChangedCallback> &callback, 78 CoolingType type) override; 79 ndk::ScopedAStatus unregisterCoolingDeviceChangedCallback( 80 const std::shared_ptr<ICoolingDeviceChangedCallback> &callback) override; 81 82 binder_status_t dump(int fd, const char **args, uint32_t numArgs) override; 83 84 // Helper function for calling callbacks 85 void sendThermalChangedCallback(const Temperature &t); 86 87 private: 88 class Looper { 89 public: 90 struct Event { 91 std::function<void()> handler; 92 }; 93 Looper()94 Looper() { 95 thread_ = std::thread([&] { loop(); }); 96 } 97 ~Looper(); 98 99 void addEvent(const Event &e); 100 101 private: 102 std::condition_variable cv_; 103 std::queue<Event> events_; 104 std::mutex mutex_; 105 std::thread thread_; 106 bool aborted_; 107 108 void loop(); 109 }; 110 111 std::shared_ptr<ThermalHelper> thermal_helper_; 112 std::mutex thermal_callback_mutex_; 113 std::vector<CallbackSetting> callbacks_; 114 std::mutex cdev_callback_mutex_; 115 std::vector<CoolingDeviceCallbackSetting> cdev_callbacks_; 116 117 Looper looper_; 118 119 ndk::ScopedAStatus getFilteredTemperatures(bool filterType, TemperatureType type, 120 std::vector<Temperature> *_aidl_return); 121 ndk::ScopedAStatus getFilteredCoolingDevices(bool filterType, CoolingType type, 122 std::vector<CoolingDevice> *_aidl_return); 123 ndk::ScopedAStatus getFilteredTemperatureThresholds( 124 bool filterType, TemperatureType type, std::vector<TemperatureThreshold> *_aidl_return); 125 ndk::ScopedAStatus registerThermalChangedCallback( 126 const std::shared_ptr<IThermalChangedCallback> &callback, bool filterType, 127 TemperatureType type); 128 129 void dumpVirtualSensorInfo(std::ostringstream *dump_buf); 130 void dumpVtEstimatorInfo(std::ostringstream *dump_buf); 131 void dumpThrottlingInfo(std::ostringstream *dump_buf); 132 void dumpThrottlingRequestStatus(std::ostringstream *dump_buf); 133 void dumpPowerRailInfo(std::ostringstream *dump_buf); 134 void dumpStatsRecord(std::ostringstream *dump_buf, const StatsRecord &stats_record, 135 std::string_view line_prefix); 136 void dumpThermalStats(std::ostringstream *dump_buf); 137 void dumpThermalData(int fd, const char **args, uint32_t numArgs); 138 }; 139 140 } // namespace implementation 141 } // namespace thermal 142 } // namespace hardware 143 } // namespace android 144 } // namespace aidl 145