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235 lines
11 KiB
235 lines
11 KiB
4 months ago
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/*
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* Copyright (c) 2018, The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <array>
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#include <chrono>
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#include <mutex>
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#include <shared_mutex>
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#include <string>
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#include <string_view>
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#include <thread>
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#include <unordered_map>
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#include <vector>
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#include <aidl/android/hardware/power/IPower.h>
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#include <aidl/google/hardware/power/extension/pixel/IPowerExt.h>
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#include <android/hardware/thermal/2.0/IThermal.h>
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#include "utils/config_parser.h"
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#include "utils/power_files.h"
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#include "utils/thermal_files.h"
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#include "utils/thermal_watcher.h"
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namespace android {
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namespace hardware {
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namespace thermal {
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namespace V2_0 {
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namespace implementation {
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using ::aidl::android::hardware::power::IPower;
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using ::aidl::google::hardware::power::extension::pixel::IPowerExt;
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using ::android::hardware::hidl_vec;
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using ::android::hardware::thermal::V1_0::CpuUsage;
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using ::android::hardware::thermal::V2_0::CoolingType;
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using ::android::hardware::thermal::V2_0::IThermal;
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using CoolingDevice_1_0 = ::android::hardware::thermal::V1_0::CoolingDevice;
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using CoolingDevice_2_0 = ::android::hardware::thermal::V2_0::CoolingDevice;
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using Temperature_1_0 = ::android::hardware::thermal::V1_0::Temperature;
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using Temperature_2_0 = ::android::hardware::thermal::V2_0::Temperature;
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using TemperatureType_1_0 = ::android::hardware::thermal::V1_0::TemperatureType;
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using TemperatureType_2_0 = ::android::hardware::thermal::V2_0::TemperatureType;
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using ::android::hardware::thermal::V2_0::TemperatureThreshold;
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using ::android::hardware::thermal::V2_0::ThrottlingSeverity;
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using NotificationCallback = std::function<void(const Temperature_2_0 &t)>;
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using NotificationTime = std::chrono::time_point<std::chrono::steady_clock>;
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using CdevRequestStatus = std::unordered_map<std::string, int>;
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// Get thermal_zone type
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bool getThermalZoneTypeById(int tz_id, std::string *);
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struct SensorStatus {
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ThrottlingSeverity severity;
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ThrottlingSeverity prev_hot_severity;
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ThrottlingSeverity prev_cold_severity;
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ThrottlingSeverity prev_hint_severity;
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boot_clock::time_point last_update_time;
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std::unordered_map<std::string, int> pid_request_map;
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std::unordered_map<std::string, int> hard_limit_request_map;
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float err_integral;
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float prev_err;
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};
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class PowerHalService {
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public:
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PowerHalService();
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~PowerHalService() = default;
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bool connect();
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bool isAidlPowerHalExist() { return power_hal_aidl_exist_; }
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bool isModeSupported(const std::string &type, const ThrottlingSeverity &t);
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bool isPowerHalConnected() { return power_hal_aidl_ != nullptr; }
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bool isPowerHalExtConnected() { return power_hal_ext_aidl_ != nullptr; }
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void setMode(const std::string &type, const ThrottlingSeverity &t, const bool &enable);
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private:
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bool power_hal_aidl_exist_;
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std::shared_ptr<IPower> power_hal_aidl_;
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std::shared_ptr<IPowerExt> power_hal_ext_aidl_;
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std::mutex lock_;
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};
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class ThermalHelper {
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public:
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explicit ThermalHelper(const NotificationCallback &cb);
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~ThermalHelper() = default;
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bool fillTemperatures(hidl_vec<Temperature_1_0> *temperatures) const;
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bool fillCurrentTemperatures(bool filterType, TemperatureType_2_0 type,
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hidl_vec<Temperature_2_0> *temperatures) const;
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bool fillTemperatureThresholds(bool filterType, TemperatureType_2_0 type,
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hidl_vec<TemperatureThreshold> *thresholds) const;
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bool fillCurrentCoolingDevices(bool filterType, CoolingType type,
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hidl_vec<CoolingDevice_2_0> *coolingdevices) const;
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bool fillCpuUsages(hidl_vec<CpuUsage> *cpu_usages) const;
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// Dissallow copy and assign.
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ThermalHelper(const ThermalHelper &) = delete;
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void operator=(const ThermalHelper &) = delete;
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bool isInitializedOk() const { return is_initialized_; }
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// Read the temperature of a single sensor.
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bool readTemperature(std::string_view sensor_name, Temperature_1_0 *out,
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bool is_virtual_sensor = false) const;
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bool readTemperature(
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std::string_view sensor_name, Temperature_2_0 *out,
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std::pair<ThrottlingSeverity, ThrottlingSeverity> *throtting_status = nullptr,
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bool is_virtual_sensor = false) const;
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bool readTemperatureThreshold(std::string_view sensor_name, TemperatureThreshold *out) const;
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// Read the value of a single cooling device.
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bool readCoolingDevice(std::string_view cooling_device, CoolingDevice_2_0 *out) const;
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// Get SensorInfo Map
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const std::unordered_map<std::string, SensorInfo> &GetSensorInfoMap() const {
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return sensor_info_map_;
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}
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// Get CdevInfo Map
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const std::unordered_map<std::string, CdevInfo> &GetCdevInfoMap() const {
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return cooling_device_info_map_;
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}
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// Get PowerRailInfo Map
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const std::unordered_map<std::string, PowerRailInfo> &GetPowerRailInfoMap() const {
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return power_rail_info_map_;
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}
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// Get SensorStatus Map
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const std::unordered_map<std::string, SensorStatus> &GetSensorStatusMap() const {
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std::shared_lock<std::shared_mutex> _lock(sensor_status_map_mutex_);
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return sensor_status_map_;
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}
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// Get CdevStatus Map
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const std::unordered_map<std::string, CdevRequestStatus> &GetCdevStatusMap() const {
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std::shared_lock<std::shared_mutex> _lock(cdev_status_map_mutex_);
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return cdev_status_map_;
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}
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// Get ThrottlingRelease Map
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const std::unordered_map<std::string, CdevReleaseStatus> &GetThrottlingReleaseMap() const {
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return power_files_.GetThrottlingReleaseMap();
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}
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// Get PowerStatus Map
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const std::unordered_map<std::string, PowerStatusMap> &GetPowerStatusMap() const {
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return power_files_.GetPowerStatusMap();
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}
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void sendPowerExtHint(const Temperature_2_0 &t);
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bool isAidlPowerHalExist() { return power_hal_service_.isAidlPowerHalExist(); }
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bool isPowerHalConnected() { return power_hal_service_.isPowerHalConnected(); }
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bool isPowerHalExtConnected() { return power_hal_service_.isPowerHalExtConnected(); }
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private:
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bool initializeSensorMap(const std::unordered_map<std::string, std::string> &path_map);
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bool initializeCoolingDevices(const std::unordered_map<std::string, std::string> &path_map);
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void setMinTimeout(SensorInfo *sensor_info);
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void initializeTrip(const std::unordered_map<std::string, std::string> &path_map,
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std::set<std::string> *monitored_sensors, bool thermal_genl_enabled);
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// For thermal_watcher_'s polling thread, return the sleep interval
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std::chrono::milliseconds thermalWatcherCallbackFunc(
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const std::set<std::string> &uevent_sensors);
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// Return hot and cold severity status as std::pair
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std::pair<ThrottlingSeverity, ThrottlingSeverity> getSeverityFromThresholds(
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const ThrottlingArray &hot_thresholds, const ThrottlingArray &cold_thresholds,
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const ThrottlingArray &hot_hysteresis, const ThrottlingArray &cold_hysteresis,
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ThrottlingSeverity prev_hot_severity, ThrottlingSeverity prev_cold_severity,
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float value) const;
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bool checkVirtualSensor(std::string_view sensor_name, std::string *temp) const;
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// Return the target state of PID algorithm
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size_t getTargetStateOfPID(const SensorInfo &sensor_info, const SensorStatus &sensor_status);
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// Return the power budget which is computed by PID algorithm
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float pidPowerCalculator(const Temperature_2_0 &temp, const SensorInfo &sensor_info,
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SensorStatus *sensor_status,
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const std::chrono::milliseconds time_elapsed_ms, size_t target_state);
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bool connectToPowerHal();
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void updateSupportedPowerHints();
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bool requestCdevByPower(std::string_view sensor_name, SensorStatus *sensor_status,
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const SensorInfo &sensor_info, float total_power_budget,
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size_t target_state);
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void requestCdevBySeverity(std::string_view sensor_name, SensorStatus *sensor_status,
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const SensorInfo &sensor_info);
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void computeCoolingDevicesRequest(std::string_view sensor_name, const SensorInfo &sensor_info,
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const SensorStatus &sensor_status,
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std::vector<std::string> *cooling_devices_to_update);
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void updateCoolingDevices(const std::vector<std::string> &cooling_devices_to_update);
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sp<ThermalWatcher> thermal_watcher_;
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PowerFiles power_files_;
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ThermalFiles thermal_sensors_;
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ThermalFiles cooling_devices_;
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bool is_initialized_;
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const NotificationCallback cb_;
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std::unordered_map<std::string, CdevInfo> cooling_device_info_map_;
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std::unordered_map<std::string, SensorInfo> sensor_info_map_;
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std::unordered_map<std::string, PowerRailInfo> power_rail_info_map_;
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std::unordered_map<std::string, std::map<ThrottlingSeverity, ThrottlingSeverity>>
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supported_powerhint_map_;
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PowerHalService power_hal_service_;
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mutable std::shared_mutex sensor_status_map_mutex_;
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std::unordered_map<std::string, SensorStatus> sensor_status_map_;
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mutable std::shared_mutex cdev_status_map_mutex_;
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std::unordered_map<std::string, CdevRequestStatus> cdev_status_map_;
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};
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} // namespace implementation
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} // namespace V2_0
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} // namespace thermal
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} // namespace hardware
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} // namespace android
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