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1380 lines
58 KiB
1380 lines
58 KiB
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <iterator>
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#include <set>
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#include <sstream>
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#include <thread>
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#include <vector>
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#include <android-base/file.h>
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#include <android-base/logging.h>
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#include <android-base/properties.h>
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#include <android-base/stringprintf.h>
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#include <android-base/strings.h>
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#include <android/binder_manager.h>
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#include <hidl/HidlTransportSupport.h>
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#include "thermal-helper.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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constexpr std::string_view kCpuOnlineRoot("/sys/devices/system/cpu");
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constexpr std::string_view kThermalSensorsRoot("/sys/devices/virtual/thermal");
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constexpr std::string_view kCpuUsageFile("/proc/stat");
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constexpr std::string_view kCpuOnlineFileSuffix("online");
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constexpr std::string_view kCpuPresentFile("/sys/devices/system/cpu/present");
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constexpr std::string_view kSensorPrefix("thermal_zone");
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constexpr std::string_view kCoolingDevicePrefix("cooling_device");
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constexpr std::string_view kThermalNameFile("type");
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constexpr std::string_view kSensorPolicyFile("policy");
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constexpr std::string_view kSensorTempSuffix("temp");
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constexpr std::string_view kSensorTripPointTempZeroFile("trip_point_0_temp");
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constexpr std::string_view kSensorTripPointHystZeroFile("trip_point_0_hyst");
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constexpr std::string_view kUserSpaceSuffix("user_space");
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constexpr std::string_view kCoolingDeviceCurStateSuffix("cur_state");
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constexpr std::string_view kCoolingDeviceMaxStateSuffix("max_state");
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constexpr std::string_view kCoolingDeviceState2powerSuffix("state2power_table");
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constexpr std::string_view kConfigProperty("vendor.thermal.config");
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constexpr std::string_view kConfigDefaultFileName("thermal_info_config.json");
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constexpr std::string_view kThermalGenlProperty("persist.vendor.enable.thermal.genl");
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constexpr std::string_view kThermalDisabledProperty("vendor.disable.thermal.control");
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namespace {
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using android::base::StringPrintf;
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using android::hardware::thermal::V2_0::toString;
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/*
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* Pixel don't offline CPU, so std::thread::hardware_concurrency(); should work.
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* However /sys/devices/system/cpu/present is preferred.
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* The file is expected to contain single text line with two numbers %d-%d,
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* which is a range of available cpu numbers, e.g. 0-7 would mean there
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* are 8 cores number from 0 to 7.
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* For Android systems this approach is safer than using cpufeatures, see bug
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* b/36941727.
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*/
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static int getNumberOfCores() {
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std::string file;
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if (!android::base::ReadFileToString(kCpuPresentFile.data(), &file)) {
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LOG(ERROR) << "Error reading Cpu present file: " << kCpuPresentFile;
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return 0;
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}
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std::vector<std::string> pieces = android::base::Split(file, "-");
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if (pieces.size() != 2) {
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LOG(ERROR) << "Error parsing Cpu present file content: " << file;
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return 0;
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}
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auto min_core = std::stoul(pieces[0]);
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auto max_core = std::stoul(pieces[1]);
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if (max_core < min_core) {
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LOG(ERROR) << "Error parsing Cpu present min and max: " << min_core << " - " << max_core;
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return 0;
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}
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return static_cast<std::size_t>(max_core - min_core + 1);
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}
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const int kMaxCpus = getNumberOfCores();
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void parseCpuUsagesFileAndAssignUsages(hidl_vec<CpuUsage> *cpu_usages) {
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std::string data;
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if (!android::base::ReadFileToString(kCpuUsageFile.data(), &data)) {
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LOG(ERROR) << "Error reading cpu usage file: " << kCpuUsageFile;
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return;
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}
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std::istringstream stat_data(data);
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std::string line;
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while (std::getline(stat_data, line)) {
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if (!line.find("cpu") && isdigit(line[3])) {
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// Split the string using spaces.
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std::vector<std::string> words = android::base::Split(line, " ");
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std::string cpu_name = words[0];
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int cpu_num = std::stoi(cpu_name.substr(3));
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if (cpu_num < kMaxCpus) {
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uint64_t user = std::stoull(words[1]);
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uint64_t nice = std::stoull(words[2]);
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uint64_t system = std::stoull(words[3]);
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uint64_t idle = std::stoull(words[4]);
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// Check if the CPU is online by reading the online file.
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std::string cpu_online_path =
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StringPrintf("%s/%s/%s", kCpuOnlineRoot.data(), cpu_name.c_str(),
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kCpuOnlineFileSuffix.data());
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std::string is_online;
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if (!android::base::ReadFileToString(cpu_online_path, &is_online)) {
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LOG(ERROR) << "Could not open Cpu online file: " << cpu_online_path;
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if (cpu_num != 0) {
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return;
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}
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// Some architecture cannot offline cpu0, so assuming it is online
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is_online = "1";
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}
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is_online = android::base::Trim(is_online);
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(*cpu_usages)[cpu_num].active = user + nice + system;
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(*cpu_usages)[cpu_num].total = user + nice + system + idle;
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(*cpu_usages)[cpu_num].isOnline = (is_online == "1") ? true : false;
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} else {
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LOG(ERROR) << "Unexpected cpu number: " << words[0];
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return;
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}
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}
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}
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}
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std::unordered_map<std::string, std::string> parseThermalPathMap(std::string_view prefix) {
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std::unordered_map<std::string, std::string> path_map;
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std::unique_ptr<DIR, int (*)(DIR *)> dir(opendir(kThermalSensorsRoot.data()), closedir);
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if (!dir) {
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return path_map;
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}
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// std::filesystem is not available for vendor yet
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// see discussion: aosp/894015
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while (struct dirent *dp = readdir(dir.get())) {
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if (dp->d_type != DT_DIR) {
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continue;
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}
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if (!android::base::StartsWith(dp->d_name, prefix.data())) {
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continue;
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}
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std::string path = android::base::StringPrintf("%s/%s/%s", kThermalSensorsRoot.data(),
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dp->d_name, kThermalNameFile.data());
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std::string name;
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if (!android::base::ReadFileToString(path, &name)) {
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PLOG(ERROR) << "Failed to read from " << path;
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continue;
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}
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path_map.emplace(
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android::base::Trim(name),
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android::base::StringPrintf("%s/%s", kThermalSensorsRoot.data(), dp->d_name));
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}
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return path_map;
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}
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} // namespace
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PowerHalService::PowerHalService()
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: power_hal_aidl_exist_(true), power_hal_aidl_(nullptr), power_hal_ext_aidl_(nullptr) {
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connect();
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}
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bool PowerHalService::connect() {
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std::lock_guard<std::mutex> lock(lock_);
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if (!power_hal_aidl_exist_)
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return false;
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if (power_hal_aidl_ != nullptr)
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return true;
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const std::string kInstance = std::string(IPower::descriptor) + "/default";
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ndk::SpAIBinder power_binder = ndk::SpAIBinder(AServiceManager_getService(kInstance.c_str()));
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ndk::SpAIBinder ext_power_binder;
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if (power_binder.get() == nullptr) {
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LOG(ERROR) << "Cannot get Power Hal Binder";
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power_hal_aidl_exist_ = false;
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return false;
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}
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power_hal_aidl_ = IPower::fromBinder(power_binder);
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if (power_hal_aidl_ == nullptr) {
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power_hal_aidl_exist_ = false;
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LOG(ERROR) << "Cannot get Power Hal AIDL" << kInstance.c_str();
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return false;
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}
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if (STATUS_OK != AIBinder_getExtension(power_binder.get(), ext_power_binder.getR()) ||
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ext_power_binder.get() == nullptr) {
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LOG(ERROR) << "Cannot get Power Hal Extension Binder";
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power_hal_aidl_exist_ = false;
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return false;
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}
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power_hal_ext_aidl_ = IPowerExt::fromBinder(ext_power_binder);
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if (power_hal_ext_aidl_ == nullptr) {
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LOG(ERROR) << "Cannot get Power Hal Extension AIDL";
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power_hal_aidl_exist_ = false;
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}
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return true;
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}
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bool PowerHalService::isModeSupported(const std::string &type, const ThrottlingSeverity &t) {
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bool isSupported = false;
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if (!isPowerHalConnected()) {
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return false;
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}
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std::string power_hint = StringPrintf("THERMAL_%s_%s", type.c_str(), toString(t).c_str());
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lock_.lock();
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if (!power_hal_ext_aidl_->isModeSupported(power_hint, &isSupported).isOk()) {
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LOG(ERROR) << "Fail to check supported mode, Hint: " << power_hint;
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power_hal_aidl_exist_ = false;
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power_hal_ext_aidl_ = nullptr;
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power_hal_aidl_ = nullptr;
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lock_.unlock();
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return false;
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}
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lock_.unlock();
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return isSupported;
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}
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void PowerHalService::setMode(const std::string &type, const ThrottlingSeverity &t,
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const bool &enable) {
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if (!isPowerHalConnected()) {
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return;
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}
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std::string power_hint = StringPrintf("THERMAL_%s_%s", type.c_str(), toString(t).c_str());
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LOG(INFO) << "Send Hint " << power_hint << " Enable: " << std::boolalpha << enable;
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lock_.lock();
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if (!power_hal_ext_aidl_->setMode(power_hint, enable).isOk()) {
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LOG(ERROR) << "Fail to set mode, Hint: " << power_hint;
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power_hal_aidl_exist_ = false;
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power_hal_ext_aidl_ = nullptr;
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power_hal_aidl_ = nullptr;
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lock_.unlock();
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return;
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}
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lock_.unlock();
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}
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/*
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* Populate the sensor_name_to_file_map_ map by walking through the file tree,
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* reading the type file and assigning the temp file path to the map. If we do
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* not succeed, abort.
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*/
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ThermalHelper::ThermalHelper(const NotificationCallback &cb)
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: thermal_watcher_(new ThermalWatcher(
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std::bind(&ThermalHelper::thermalWatcherCallbackFunc, this, std::placeholders::_1))),
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cb_(cb) {
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const std::string config_path =
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"/vendor/etc/" +
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android::base::GetProperty(kConfigProperty.data(), kConfigDefaultFileName.data());
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cooling_device_info_map_ = ParseCoolingDevice(config_path);
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sensor_info_map_ = ParseSensorInfo(config_path);
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power_rail_info_map_ = ParsePowerRailInfo(config_path);
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auto tz_map = parseThermalPathMap(kSensorPrefix.data());
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auto cdev_map = parseThermalPathMap(kCoolingDevicePrefix.data());
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is_initialized_ = initializeSensorMap(tz_map) && initializeCoolingDevices(cdev_map);
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if (!is_initialized_) {
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LOG(FATAL) << "ThermalHAL could not be initialized properly.";
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}
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for (auto const &name_status_pair : sensor_info_map_) {
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sensor_status_map_[name_status_pair.first] = {
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.severity = ThrottlingSeverity::NONE,
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.prev_hot_severity = ThrottlingSeverity::NONE,
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.prev_cold_severity = ThrottlingSeverity::NONE,
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.prev_hint_severity = ThrottlingSeverity::NONE,
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.last_update_time = boot_clock::time_point::min(),
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.err_integral = 0.0,
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.prev_err = NAN,
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};
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bool invalid_binded_cdev = false;
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for (auto &binded_cdev_pair :
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name_status_pair.second.throttling_info->binded_cdev_info_map) {
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if (!cooling_device_info_map_.count(binded_cdev_pair.first)) {
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invalid_binded_cdev = true;
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LOG(ERROR) << "Could not find " << binded_cdev_pair.first
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<< " in cooling device info map";
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}
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for (const auto &cdev_weight : binded_cdev_pair.second.cdev_weight_for_pid) {
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if (!std::isnan(cdev_weight)) {
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sensor_status_map_[name_status_pair.first]
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.pid_request_map[binded_cdev_pair.first] = 0;
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cdev_status_map_[binded_cdev_pair.first][name_status_pair.first] = 0;
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break;
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}
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}
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for (const auto &limit_info : binded_cdev_pair.second.limit_info) {
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if (limit_info > 0) {
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sensor_status_map_[name_status_pair.first]
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.hard_limit_request_map[binded_cdev_pair.first] = 0;
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cdev_status_map_[binded_cdev_pair.first][name_status_pair.first] = 0;
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}
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}
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const auto &cdev_info = cooling_device_info_map_.at(binded_cdev_pair.first);
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for (auto &cdev_ceiling : binded_cdev_pair.second.cdev_ceiling) {
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if (cdev_ceiling > cdev_info.max_state) {
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if (cdev_ceiling != std::numeric_limits<int>::max()) {
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LOG(ERROR) << "Sensor " << name_status_pair.first << "'s "
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<< binded_cdev_pair.first << " cdev_ceiling:" << cdev_ceiling
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<< " is higher than max state:" << cdev_info.max_state;
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}
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cdev_ceiling = cdev_info.max_state;
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}
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}
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if (power_rail_info_map_.count(binded_cdev_pair.second.power_rail) &&
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power_rail_info_map_.at(binded_cdev_pair.second.power_rail).power_sample_count &&
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power_files_.findEnergySourceToWatch()) {
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const auto &power_rail_info =
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power_rail_info_map_.at(binded_cdev_pair.second.power_rail);
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if (!power_files_.registerPowerRailsToWatch(
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name_status_pair.first, binded_cdev_pair.first, binded_cdev_pair.second,
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cdev_info, power_rail_info)) {
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invalid_binded_cdev = true;
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LOG(ERROR) << "Could not find " << binded_cdev_pair.first
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<< "'s power energy source: " << binded_cdev_pair.second.power_rail;
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}
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}
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}
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if (invalid_binded_cdev) {
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name_status_pair.second.throttling_info->binded_cdev_info_map.clear();
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sensor_status_map_[name_status_pair.first].hard_limit_request_map.clear();
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sensor_status_map_[name_status_pair.first].pid_request_map.clear();
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}
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if (name_status_pair.second.virtual_sensor_info != nullptr &&
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name_status_pair.second.is_monitor) {
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if (sensor_info_map_.count(
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name_status_pair.second.virtual_sensor_info->trigger_sensor)) {
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sensor_info_map_[name_status_pair.second.virtual_sensor_info->trigger_sensor]
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.is_monitor = true;
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} else {
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LOG(FATAL) << name_status_pair.first << " does not have trigger sensor: "
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<< name_status_pair.second.virtual_sensor_info->trigger_sensor;
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}
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}
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}
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const bool thermal_throttling_disabled =
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android::base::GetBoolProperty(kThermalDisabledProperty.data(), false);
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if (thermal_throttling_disabled) {
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LOG(INFO) << kThermalDisabledProperty.data() << " is true";
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for (const auto &cdev_pair : cooling_device_info_map_) {
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if (cooling_devices_.writeCdevFile(cdev_pair.first, std::to_string(0))) {
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LOG(INFO) << "Successfully clear cdev " << cdev_pair.first << " to 0";
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}
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}
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return;
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}
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const bool thermal_genl_enabled =
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android::base::GetBoolProperty(kThermalGenlProperty.data(), false);
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std::set<std::string> monitored_sensors;
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initializeTrip(tz_map, &monitored_sensors, thermal_genl_enabled);
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if (thermal_genl_enabled) {
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thermal_watcher_->registerFilesToWatchNl(monitored_sensors);
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} else {
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thermal_watcher_->registerFilesToWatch(monitored_sensors);
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}
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// Need start watching after status map initialized
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is_initialized_ = thermal_watcher_->startWatchingDeviceFiles();
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if (!is_initialized_) {
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LOG(FATAL) << "ThermalHAL could not start watching thread properly.";
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}
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if (!connectToPowerHal()) {
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LOG(ERROR) << "Fail to connect to Power Hal";
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} else {
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updateSupportedPowerHints();
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}
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}
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bool getThermalZoneTypeById(int tz_id, std::string *type) {
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std::string tz_type;
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std::string path =
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android::base::StringPrintf("%s/%s%d/%s", kThermalSensorsRoot.data(),
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kSensorPrefix.data(), tz_id, kThermalNameFile.data());
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LOG(INFO) << "TZ Path: " << path;
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if (!::android::base::ReadFileToString(path, &tz_type)) {
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LOG(ERROR) << "Failed to read sensor: " << tz_type;
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return false;
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}
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// Strip the newline.
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*type = ::android::base::Trim(tz_type);
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LOG(INFO) << "TZ type: " << *type;
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return true;
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}
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bool ThermalHelper::readCoolingDevice(std::string_view cooling_device,
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CoolingDevice_2_0 *out) const {
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// Read the file. If the file can't be read temp will be empty string.
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std::string data;
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if (!cooling_devices_.readThermalFile(cooling_device, &data)) {
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LOG(ERROR) << "readCoolingDevice: failed to read cooling_device: " << cooling_device;
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return false;
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}
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const CdevInfo &cdev_info = cooling_device_info_map_.at(cooling_device.data());
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const CoolingType &type = cdev_info.type;
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out->type = type;
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out->name = cooling_device.data();
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out->value = std::stoi(data);
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return true;
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}
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bool ThermalHelper::readTemperature(std::string_view sensor_name, Temperature_1_0 *out,
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bool is_virtual_sensor) const {
|
|
// Read the file. If the file can't be read temp will be empty string.
|
|
std::string temp;
|
|
|
|
if (!is_virtual_sensor) {
|
|
if (!thermal_sensors_.readThermalFile(sensor_name, &temp)) {
|
|
LOG(ERROR) << "readTemperature: sensor not found: " << sensor_name;
|
|
return false;
|
|
}
|
|
|
|
if (temp.empty()) {
|
|
LOG(ERROR) << "readTemperature: failed to read sensor: " << sensor_name;
|
|
return false;
|
|
}
|
|
} else {
|
|
if (!checkVirtualSensor(sensor_name.data(), &temp)) {
|
|
LOG(ERROR) << "readTemperature: failed to read virtual sensor: " << sensor_name;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
const SensorInfo &sensor_info = sensor_info_map_.at(sensor_name.data());
|
|
TemperatureType_1_0 type =
|
|
(static_cast<int>(sensor_info.type) > static_cast<int>(TemperatureType_1_0::SKIN))
|
|
? TemperatureType_1_0::UNKNOWN
|
|
: static_cast<TemperatureType_1_0>(sensor_info.type);
|
|
out->type = type;
|
|
out->name = sensor_name.data();
|
|
out->currentValue = std::stof(temp) * sensor_info.multiplier;
|
|
out->throttlingThreshold =
|
|
sensor_info.hot_thresholds[static_cast<size_t>(ThrottlingSeverity::SEVERE)];
|
|
out->shutdownThreshold =
|
|
sensor_info.hot_thresholds[static_cast<size_t>(ThrottlingSeverity::SHUTDOWN)];
|
|
out->vrThrottlingThreshold = sensor_info.vr_threshold;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool ThermalHelper::readTemperature(
|
|
std::string_view sensor_name, Temperature_2_0 *out,
|
|
std::pair<ThrottlingSeverity, ThrottlingSeverity> *throtting_status,
|
|
bool is_virtual_sensor) const {
|
|
// Read the file. If the file can't be read temp will be empty string.
|
|
std::string temp;
|
|
|
|
if (!is_virtual_sensor) {
|
|
if (!thermal_sensors_.readThermalFile(sensor_name, &temp)) {
|
|
LOG(ERROR) << "readTemperature: sensor not found: " << sensor_name;
|
|
return false;
|
|
}
|
|
|
|
if (temp.empty()) {
|
|
LOG(ERROR) << "readTemperature: failed to read sensor: " << sensor_name;
|
|
return false;
|
|
}
|
|
} else {
|
|
if (!checkVirtualSensor(sensor_name.data(), &temp)) {
|
|
LOG(ERROR) << "readTemperature: failed to read virtual sensor: " << sensor_name;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
const auto &sensor_info = sensor_info_map_.at(sensor_name.data());
|
|
out->type = sensor_info.type;
|
|
out->name = sensor_name.data();
|
|
out->value = std::stof(temp) * sensor_info.multiplier;
|
|
|
|
std::pair<ThrottlingSeverity, ThrottlingSeverity> status =
|
|
std::make_pair(ThrottlingSeverity::NONE, ThrottlingSeverity::NONE);
|
|
// Only update status if the thermal sensor is being monitored
|
|
if (sensor_info.is_monitor) {
|
|
ThrottlingSeverity prev_hot_severity, prev_cold_severity;
|
|
{
|
|
// reader lock, readTemperature will be called in Binder call and the watcher thread.
|
|
std::shared_lock<std::shared_mutex> _lock(sensor_status_map_mutex_);
|
|
prev_hot_severity = sensor_status_map_.at(sensor_name.data()).prev_hot_severity;
|
|
prev_cold_severity = sensor_status_map_.at(sensor_name.data()).prev_cold_severity;
|
|
}
|
|
status = getSeverityFromThresholds(sensor_info.hot_thresholds, sensor_info.cold_thresholds,
|
|
sensor_info.hot_hysteresis, sensor_info.cold_hysteresis,
|
|
prev_hot_severity, prev_cold_severity, out->value);
|
|
}
|
|
if (throtting_status) {
|
|
*throtting_status = status;
|
|
}
|
|
|
|
out->throttlingStatus = static_cast<size_t>(status.first) > static_cast<size_t>(status.second)
|
|
? status.first
|
|
: status.second;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool ThermalHelper::readTemperatureThreshold(std::string_view sensor_name,
|
|
TemperatureThreshold *out) const {
|
|
// Read the file. If the file can't be read temp will be empty string.
|
|
std::string temp;
|
|
std::string path;
|
|
|
|
if (!sensor_info_map_.count(sensor_name.data())) {
|
|
LOG(ERROR) << __func__ << ": sensor not found: " << sensor_name;
|
|
return false;
|
|
}
|
|
|
|
const auto &sensor_info = sensor_info_map_.at(sensor_name.data());
|
|
|
|
out->type = sensor_info.type;
|
|
out->name = sensor_name.data();
|
|
out->hotThrottlingThresholds = sensor_info.hot_thresholds;
|
|
out->coldThrottlingThresholds = sensor_info.cold_thresholds;
|
|
out->vrThrottlingThreshold = sensor_info.vr_threshold;
|
|
return true;
|
|
}
|
|
|
|
// To find the next PID target state according to the current thermal severity
|
|
size_t ThermalHelper::getTargetStateOfPID(const SensorInfo &sensor_info,
|
|
const SensorStatus &sensor_status) {
|
|
size_t target_state = 0;
|
|
|
|
for (const auto &severity : hidl_enum_range<ThrottlingSeverity>()) {
|
|
size_t state = static_cast<size_t>(severity);
|
|
if (std::isnan(sensor_info.throttling_info->s_power[state])) {
|
|
continue;
|
|
}
|
|
target_state = state;
|
|
if (severity > sensor_status.severity) {
|
|
break;
|
|
}
|
|
}
|
|
return target_state;
|
|
}
|
|
|
|
// Return the power budget which is computed by PID algorithm
|
|
float ThermalHelper::pidPowerCalculator(const Temperature_2_0 &temp, const SensorInfo &sensor_info,
|
|
SensorStatus *sensor_status,
|
|
std::chrono::milliseconds time_elapsed_ms,
|
|
size_t target_state) {
|
|
float p = 0, i = 0, d = 0;
|
|
float power_budget = std::numeric_limits<float>::max();
|
|
|
|
LOG(VERBOSE) << "PID target state=" << target_state;
|
|
if (!target_state || (sensor_status->severity == ThrottlingSeverity::NONE)) {
|
|
sensor_status->err_integral = 0;
|
|
sensor_status->prev_err = NAN;
|
|
return power_budget;
|
|
}
|
|
|
|
// Compute PID
|
|
float err = sensor_info.hot_thresholds[target_state] - temp.value;
|
|
p = err * (err < 0 ? sensor_info.throttling_info->k_po[target_state]
|
|
: sensor_info.throttling_info->k_pu[target_state]);
|
|
i = sensor_status->err_integral * sensor_info.throttling_info->k_i[target_state];
|
|
if (err < sensor_info.throttling_info->i_cutoff[target_state]) {
|
|
float i_next = i + err * sensor_info.throttling_info->k_i[target_state];
|
|
if (abs(i_next) < sensor_info.throttling_info->i_max[target_state]) {
|
|
i = i_next;
|
|
sensor_status->err_integral += err;
|
|
}
|
|
}
|
|
|
|
if (!std::isnan(sensor_status->prev_err) &&
|
|
time_elapsed_ms != std::chrono::milliseconds::zero()) {
|
|
d = sensor_info.throttling_info->k_d[target_state] * (err - sensor_status->prev_err) /
|
|
time_elapsed_ms.count();
|
|
}
|
|
|
|
sensor_status->prev_err = err;
|
|
// Calculate power budget
|
|
power_budget = sensor_info.throttling_info->s_power[target_state] + p + i + d;
|
|
if (power_budget < sensor_info.throttling_info->min_alloc_power[target_state]) {
|
|
power_budget = sensor_info.throttling_info->min_alloc_power[target_state];
|
|
}
|
|
if (power_budget > sensor_info.throttling_info->max_alloc_power[target_state]) {
|
|
power_budget = sensor_info.throttling_info->max_alloc_power[target_state];
|
|
}
|
|
|
|
LOG(VERBOSE) << "power_budget=" << power_budget << " err=" << err
|
|
<< " err_integral=" << sensor_status->err_integral
|
|
<< " s_power=" << sensor_info.throttling_info->s_power[target_state]
|
|
<< " time_elpased_ms=" << time_elapsed_ms.count() << " p=" << p << " i=" << i
|
|
<< " d=" << d;
|
|
|
|
return power_budget;
|
|
}
|
|
|
|
bool ThermalHelper::requestCdevByPower(std::string_view sensor_name, SensorStatus *sensor_status,
|
|
const SensorInfo &sensor_info, float total_power_budget,
|
|
size_t target_state) {
|
|
float total_weight = 0, cdev_power_budget;
|
|
size_t j;
|
|
|
|
for (const auto &binded_cdev_info_pair : sensor_info.throttling_info->binded_cdev_info_map) {
|
|
if (!std::isnan(binded_cdev_info_pair.second.cdev_weight_for_pid[target_state])) {
|
|
total_weight += binded_cdev_info_pair.second.cdev_weight_for_pid[target_state];
|
|
}
|
|
}
|
|
|
|
if (!total_weight) {
|
|
LOG(ERROR) << "Sensor: " << sensor_name.data() << " total weight value is zero";
|
|
return false;
|
|
}
|
|
|
|
// Map cdev state by power
|
|
for (const auto &binded_cdev_info_pair : sensor_info.throttling_info->binded_cdev_info_map) {
|
|
const auto cdev_weight = binded_cdev_info_pair.second.cdev_weight_for_pid[target_state];
|
|
if (!std::isnan(cdev_weight)) {
|
|
cdev_power_budget = total_power_budget * (cdev_weight / total_weight);
|
|
|
|
const CdevInfo &cdev_info_pair =
|
|
cooling_device_info_map_.at(binded_cdev_info_pair.first);
|
|
for (j = 0; j < cdev_info_pair.state2power.size() - 1; ++j) {
|
|
if (cdev_power_budget > cdev_info_pair.state2power[j]) {
|
|
break;
|
|
}
|
|
}
|
|
sensor_status->pid_request_map.at(binded_cdev_info_pair.first) = static_cast<int>(j);
|
|
LOG(VERBOSE) << "Power allocator: Sensor " << sensor_name.data() << " allocate "
|
|
<< cdev_power_budget << "mW to " << binded_cdev_info_pair.first
|
|
<< "(cdev_weight=" << cdev_weight << ") update state to " << j;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void ThermalHelper::requestCdevBySeverity(std::string_view sensor_name, SensorStatus *sensor_status,
|
|
const SensorInfo &sensor_info) {
|
|
for (auto const &binded_cdev_info_pair : sensor_info.throttling_info->binded_cdev_info_map) {
|
|
sensor_status->hard_limit_request_map.at(binded_cdev_info_pair.first) =
|
|
binded_cdev_info_pair.second
|
|
.limit_info[static_cast<size_t>(sensor_status->severity)];
|
|
LOG(VERBOSE) << "Hard Limit: Sensor " << sensor_name.data() << " update cdev "
|
|
<< binded_cdev_info_pair.first << " to "
|
|
<< sensor_status->hard_limit_request_map.at(binded_cdev_info_pair.first);
|
|
}
|
|
}
|
|
|
|
void ThermalHelper::computeCoolingDevicesRequest(
|
|
std::string_view sensor_name, const SensorInfo &sensor_info,
|
|
const SensorStatus &sensor_status, std::vector<std::string> *cooling_devices_to_update) {
|
|
int release_step = 0;
|
|
|
|
std::unique_lock<std::shared_mutex> _lock(cdev_status_map_mutex_);
|
|
for (auto &cdev_request_pair : cdev_status_map_) {
|
|
if (!cdev_request_pair.second.count(sensor_name.data())) {
|
|
continue;
|
|
}
|
|
int pid_request = 0;
|
|
int hard_limit_request = 0;
|
|
const auto &binded_cdev_info =
|
|
sensor_info.throttling_info->binded_cdev_info_map.at(cdev_request_pair.first);
|
|
const auto cdev_ceiling =
|
|
binded_cdev_info.cdev_ceiling[static_cast<size_t>(sensor_status.severity)];
|
|
const auto cdev_floor =
|
|
binded_cdev_info
|
|
.cdev_floor_with_power_link[static_cast<size_t>(sensor_status.severity)];
|
|
release_step = 0;
|
|
|
|
if (sensor_status.pid_request_map.count(cdev_request_pair.first)) {
|
|
pid_request = sensor_status.pid_request_map.at(cdev_request_pair.first);
|
|
}
|
|
|
|
if (sensor_status.hard_limit_request_map.count(cdev_request_pair.first)) {
|
|
hard_limit_request = sensor_status.hard_limit_request_map.at(cdev_request_pair.first);
|
|
}
|
|
|
|
release_step = power_files_.getReleaseStep(sensor_name, cdev_request_pair.first);
|
|
LOG(VERBOSE) << "Sensor: " << sensor_name.data() << " binded cooling device "
|
|
<< cdev_request_pair.first << "'s pid_request=" << pid_request
|
|
<< " hard_limit_request=" << hard_limit_request
|
|
<< " release_step=" << release_step
|
|
<< " cdev_floor_with_power_link=" << cdev_floor
|
|
<< " cdev_ceiling=" << cdev_ceiling;
|
|
|
|
auto request_state = std::max(pid_request, hard_limit_request);
|
|
if (release_step) {
|
|
if (release_step >= request_state) {
|
|
request_state = 0;
|
|
} else {
|
|
request_state = request_state - release_step;
|
|
}
|
|
// Only check the cdev_floor when release step is non zero
|
|
if (request_state < cdev_floor) {
|
|
request_state = cdev_floor;
|
|
}
|
|
}
|
|
|
|
if (request_state > cdev_ceiling) {
|
|
request_state = cdev_ceiling;
|
|
}
|
|
if (cdev_request_pair.second.at(sensor_name.data()) != request_state) {
|
|
cdev_request_pair.second.at(sensor_name.data()) = request_state;
|
|
cooling_devices_to_update->emplace_back(cdev_request_pair.first);
|
|
LOG(INFO) << "Sensor: " << sensor_name.data() << " request " << cdev_request_pair.first
|
|
<< " to " << request_state;
|
|
}
|
|
}
|
|
}
|
|
|
|
void ThermalHelper::updateCoolingDevices(const std::vector<std::string> &updated_cdev) {
|
|
int max_state;
|
|
|
|
for (const auto &target_cdev : updated_cdev) {
|
|
max_state = 0;
|
|
const CdevRequestStatus &cdev_status = cdev_status_map_.at(target_cdev);
|
|
for (auto &sensor_request_pair : cdev_status) {
|
|
if (sensor_request_pair.second > max_state) {
|
|
max_state = sensor_request_pair.second;
|
|
}
|
|
}
|
|
if (cooling_devices_.writeCdevFile(target_cdev, std::to_string(max_state))) {
|
|
LOG(VERBOSE) << "Successfully update cdev " << target_cdev << " sysfs to " << max_state;
|
|
}
|
|
}
|
|
}
|
|
|
|
std::pair<ThrottlingSeverity, ThrottlingSeverity> ThermalHelper::getSeverityFromThresholds(
|
|
const ThrottlingArray &hot_thresholds, const ThrottlingArray &cold_thresholds,
|
|
const ThrottlingArray &hot_hysteresis, const ThrottlingArray &cold_hysteresis,
|
|
ThrottlingSeverity prev_hot_severity, ThrottlingSeverity prev_cold_severity,
|
|
float value) const {
|
|
ThrottlingSeverity ret_hot = ThrottlingSeverity::NONE;
|
|
ThrottlingSeverity ret_hot_hysteresis = ThrottlingSeverity::NONE;
|
|
ThrottlingSeverity ret_cold = ThrottlingSeverity::NONE;
|
|
ThrottlingSeverity ret_cold_hysteresis = ThrottlingSeverity::NONE;
|
|
|
|
// Here we want to control the iteration from high to low, and hidl_enum_range doesn't support
|
|
// a reverse iterator yet.
|
|
for (size_t i = static_cast<size_t>(ThrottlingSeverity::SHUTDOWN);
|
|
i > static_cast<size_t>(ThrottlingSeverity::NONE); --i) {
|
|
if (!std::isnan(hot_thresholds[i]) && hot_thresholds[i] <= value &&
|
|
ret_hot == ThrottlingSeverity::NONE) {
|
|
ret_hot = static_cast<ThrottlingSeverity>(i);
|
|
}
|
|
if (!std::isnan(hot_thresholds[i]) && (hot_thresholds[i] - hot_hysteresis[i]) < value &&
|
|
ret_hot_hysteresis == ThrottlingSeverity::NONE) {
|
|
ret_hot_hysteresis = static_cast<ThrottlingSeverity>(i);
|
|
}
|
|
if (!std::isnan(cold_thresholds[i]) && cold_thresholds[i] >= value &&
|
|
ret_cold == ThrottlingSeverity::NONE) {
|
|
ret_cold = static_cast<ThrottlingSeverity>(i);
|
|
}
|
|
if (!std::isnan(cold_thresholds[i]) && (cold_thresholds[i] + cold_hysteresis[i]) > value &&
|
|
ret_cold_hysteresis == ThrottlingSeverity::NONE) {
|
|
ret_cold_hysteresis = static_cast<ThrottlingSeverity>(i);
|
|
}
|
|
}
|
|
if (static_cast<size_t>(ret_hot) < static_cast<size_t>(prev_hot_severity)) {
|
|
ret_hot = ret_hot_hysteresis;
|
|
}
|
|
if (static_cast<size_t>(ret_cold) < static_cast<size_t>(prev_cold_severity)) {
|
|
ret_cold = ret_cold_hysteresis;
|
|
}
|
|
|
|
return std::make_pair(ret_hot, ret_cold);
|
|
}
|
|
|
|
bool ThermalHelper::initializeSensorMap(
|
|
const std::unordered_map<std::string, std::string> &path_map) {
|
|
for (const auto &sensor_info_pair : sensor_info_map_) {
|
|
std::string_view sensor_name = sensor_info_pair.first;
|
|
if (sensor_info_pair.second.virtual_sensor_info != nullptr) {
|
|
continue;
|
|
}
|
|
if (!path_map.count(sensor_name.data())) {
|
|
LOG(ERROR) << "Could not find " << sensor_name << " in sysfs";
|
|
return false;
|
|
}
|
|
|
|
std::string path;
|
|
if (sensor_info_pair.second.temp_path.empty()) {
|
|
path = android::base::StringPrintf("%s/%s", path_map.at(sensor_name.data()).c_str(),
|
|
kSensorTempSuffix.data());
|
|
} else {
|
|
path = sensor_info_pair.second.temp_path;
|
|
}
|
|
|
|
if (!thermal_sensors_.addThermalFile(sensor_name, path)) {
|
|
LOG(ERROR) << "Could not add " << sensor_name << "to sensors map";
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool ThermalHelper::initializeCoolingDevices(
|
|
const std::unordered_map<std::string, std::string> &path_map) {
|
|
for (auto &cooling_device_info_pair : cooling_device_info_map_) {
|
|
std::string cooling_device_name = cooling_device_info_pair.first;
|
|
if (!path_map.count(cooling_device_name)) {
|
|
LOG(ERROR) << "Could not find " << cooling_device_name << " in sysfs";
|
|
continue;
|
|
}
|
|
// Add cooling device path for thermalHAL to get current state
|
|
std::string_view path = path_map.at(cooling_device_name);
|
|
std::string read_path;
|
|
if (!cooling_device_info_pair.second.read_path.empty()) {
|
|
read_path = cooling_device_info_pair.second.read_path.data();
|
|
} else {
|
|
read_path = android::base::StringPrintf("%s/%s", path.data(),
|
|
kCoolingDeviceCurStateSuffix.data());
|
|
}
|
|
if (!cooling_devices_.addThermalFile(cooling_device_name, read_path)) {
|
|
LOG(ERROR) << "Could not add " << cooling_device_name
|
|
<< " read path to cooling device map";
|
|
continue;
|
|
}
|
|
|
|
std::string state2power_path = android::base::StringPrintf(
|
|
"%s/%s", path.data(), kCoolingDeviceState2powerSuffix.data());
|
|
std::string state2power_str;
|
|
if (android::base::ReadFileToString(state2power_path, &state2power_str)) {
|
|
LOG(INFO) << "Cooling device " << cooling_device_info_pair.first
|
|
<< " use state2power read from sysfs";
|
|
cooling_device_info_pair.second.state2power.clear();
|
|
|
|
std::stringstream power(state2power_str);
|
|
unsigned int power_number;
|
|
int i = 0;
|
|
while (power >> power_number) {
|
|
cooling_device_info_pair.second.state2power.push_back(
|
|
static_cast<float>(power_number));
|
|
LOG(INFO) << "Cooling device " << cooling_device_info_pair.first << " state:" << i
|
|
<< " power: " << power_number;
|
|
i++;
|
|
}
|
|
}
|
|
|
|
// Get max cooling device request state
|
|
std::string max_state;
|
|
std::string max_state_path = android::base::StringPrintf(
|
|
"%s/%s", path.data(), kCoolingDeviceMaxStateSuffix.data());
|
|
if (!android::base::ReadFileToString(max_state_path, &max_state)) {
|
|
LOG(ERROR) << cooling_device_info_pair.first
|
|
<< " could not open max state file:" << max_state_path;
|
|
cooling_device_info_pair.second.max_state = std::numeric_limits<int>::max();
|
|
} else {
|
|
cooling_device_info_pair.second.max_state = std::stoi(android::base::Trim(max_state));
|
|
LOG(INFO) << "Cooling device " << cooling_device_info_pair.first
|
|
<< " max state: " << cooling_device_info_pair.second.max_state
|
|
<< " state2power number: "
|
|
<< cooling_device_info_pair.second.state2power.size();
|
|
if (cooling_device_info_pair.second.state2power.size() > 0 &&
|
|
cooling_device_info_pair.second.state2power.size() !=
|
|
(size_t)cooling_device_info_pair.second.max_state + 1) {
|
|
LOG(ERROR) << "Invalid state2power number: "
|
|
<< cooling_device_info_pair.second.state2power.size()
|
|
<< ", number should be " << cooling_device_info_pair.second.max_state + 1
|
|
<< " (max_state + 1)";
|
|
}
|
|
}
|
|
|
|
// Add cooling device path for thermalHAL to request state
|
|
cooling_device_name =
|
|
android::base::StringPrintf("%s_%s", cooling_device_name.c_str(), "w");
|
|
std::string write_path;
|
|
if (!cooling_device_info_pair.second.write_path.empty()) {
|
|
write_path = cooling_device_info_pair.second.write_path.data();
|
|
} else {
|
|
write_path = android::base::StringPrintf("%s/%s", path.data(),
|
|
kCoolingDeviceCurStateSuffix.data());
|
|
}
|
|
|
|
if (!cooling_devices_.addThermalFile(cooling_device_name, write_path)) {
|
|
LOG(ERROR) << "Could not add " << cooling_device_name
|
|
<< " write path to cooling device map";
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (cooling_device_info_map_.size() * 2 != cooling_devices_.getNumThermalFiles()) {
|
|
LOG(ERROR) << "Some cooling device can not be initialized";
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void ThermalHelper::setMinTimeout(SensorInfo *sensor_info) {
|
|
sensor_info->polling_delay = kMinPollIntervalMs;
|
|
sensor_info->passive_delay = kMinPollIntervalMs;
|
|
}
|
|
|
|
void ThermalHelper::initializeTrip(const std::unordered_map<std::string, std::string> &path_map,
|
|
std::set<std::string> *monitored_sensors,
|
|
bool thermal_genl_enabled) {
|
|
for (auto &sensor_info : sensor_info_map_) {
|
|
if (!sensor_info.second.is_monitor || (sensor_info.second.virtual_sensor_info != nullptr)) {
|
|
continue;
|
|
}
|
|
|
|
bool trip_update = false;
|
|
std::string_view sensor_name = sensor_info.first;
|
|
std::string_view tz_path = path_map.at(sensor_name.data());
|
|
std::string tz_policy;
|
|
std::string path =
|
|
android::base::StringPrintf("%s/%s", (tz_path.data()), kSensorPolicyFile.data());
|
|
|
|
if (thermal_genl_enabled) {
|
|
trip_update = true;
|
|
} else {
|
|
// Check if thermal zone support uevent notify
|
|
if (!android::base::ReadFileToString(path, &tz_policy)) {
|
|
LOG(ERROR) << sensor_name << " could not open tz policy file:" << path;
|
|
} else {
|
|
tz_policy = android::base::Trim(tz_policy);
|
|
if (tz_policy != kUserSpaceSuffix) {
|
|
LOG(ERROR) << sensor_name << " does not support uevent notify";
|
|
} else {
|
|
trip_update = true;
|
|
}
|
|
}
|
|
}
|
|
if (trip_update) {
|
|
// Update thermal zone trip point
|
|
for (size_t i = 0; i < kThrottlingSeverityCount; ++i) {
|
|
if (!std::isnan(sensor_info.second.hot_thresholds[i]) &&
|
|
!std::isnan(sensor_info.second.hot_hysteresis[i])) {
|
|
// Update trip_point_0_temp threshold
|
|
std::string threshold = std::to_string(static_cast<int>(
|
|
sensor_info.second.hot_thresholds[i] / sensor_info.second.multiplier));
|
|
path = android::base::StringPrintf("%s/%s", (tz_path.data()),
|
|
kSensorTripPointTempZeroFile.data());
|
|
if (!android::base::WriteStringToFile(threshold, path)) {
|
|
LOG(ERROR) << "fail to update " << sensor_name << " trip point: " << path
|
|
<< " to " << threshold;
|
|
trip_update = false;
|
|
break;
|
|
}
|
|
// Update trip_point_0_hyst threshold
|
|
threshold = std::to_string(static_cast<int>(
|
|
sensor_info.second.hot_hysteresis[i] / sensor_info.second.multiplier));
|
|
path = android::base::StringPrintf("%s/%s", (tz_path.data()),
|
|
kSensorTripPointHystZeroFile.data());
|
|
if (!android::base::WriteStringToFile(threshold, path)) {
|
|
LOG(ERROR) << "fail to update " << sensor_name << "trip hyst" << threshold
|
|
<< path;
|
|
trip_update = false;
|
|
break;
|
|
}
|
|
break;
|
|
} else if (i == kThrottlingSeverityCount - 1) {
|
|
LOG(ERROR) << sensor_name << ":all thresholds are NAN";
|
|
trip_update = false;
|
|
break;
|
|
}
|
|
}
|
|
monitored_sensors->insert(sensor_info.first);
|
|
}
|
|
|
|
if (!trip_update) {
|
|
LOG(INFO) << "config Sensor: " << sensor_info.first
|
|
<< " to default polling interval: " << kMinPollIntervalMs.count();
|
|
setMinTimeout(&sensor_info.second);
|
|
}
|
|
}
|
|
}
|
|
|
|
bool ThermalHelper::fillTemperatures(hidl_vec<Temperature_1_0> *temperatures) const {
|
|
temperatures->resize(sensor_info_map_.size());
|
|
int current_index = 0;
|
|
for (const auto &name_info_pair : sensor_info_map_) {
|
|
Temperature_1_0 temp;
|
|
|
|
if (readTemperature(name_info_pair.first, &temp,
|
|
name_info_pair.second.virtual_sensor_info != nullptr)) {
|
|
(*temperatures)[current_index] = temp;
|
|
} else {
|
|
LOG(ERROR) << __func__
|
|
<< ": error reading temperature for sensor: " << name_info_pair.first;
|
|
return false;
|
|
}
|
|
++current_index;
|
|
}
|
|
return current_index > 0;
|
|
}
|
|
|
|
bool ThermalHelper::fillCurrentTemperatures(bool filterType, TemperatureType_2_0 type,
|
|
hidl_vec<Temperature_2_0> *temperatures) const {
|
|
std::vector<Temperature_2_0> ret;
|
|
for (const auto &name_info_pair : sensor_info_map_) {
|
|
Temperature_2_0 temp;
|
|
if (filterType && name_info_pair.second.type != type) {
|
|
continue;
|
|
}
|
|
if (readTemperature(name_info_pair.first, &temp, nullptr,
|
|
name_info_pair.second.virtual_sensor_info != nullptr)) {
|
|
ret.emplace_back(std::move(temp));
|
|
} else {
|
|
LOG(ERROR) << __func__
|
|
<< ": error reading temperature for sensor: " << name_info_pair.first;
|
|
return false;
|
|
}
|
|
}
|
|
*temperatures = ret;
|
|
return ret.size() > 0;
|
|
}
|
|
|
|
bool ThermalHelper::fillTemperatureThresholds(bool filterType, TemperatureType_2_0 type,
|
|
hidl_vec<TemperatureThreshold> *thresholds) const {
|
|
std::vector<TemperatureThreshold> ret;
|
|
for (const auto &name_info_pair : sensor_info_map_) {
|
|
TemperatureThreshold temp;
|
|
if (filterType && name_info_pair.second.type != type) {
|
|
continue;
|
|
}
|
|
if (readTemperatureThreshold(name_info_pair.first, &temp)) {
|
|
ret.emplace_back(std::move(temp));
|
|
} else {
|
|
LOG(ERROR) << __func__ << ": error reading temperature threshold for sensor: "
|
|
<< name_info_pair.first;
|
|
return false;
|
|
}
|
|
}
|
|
*thresholds = ret;
|
|
return ret.size() > 0;
|
|
}
|
|
|
|
bool ThermalHelper::fillCurrentCoolingDevices(bool filterType, CoolingType type,
|
|
hidl_vec<CoolingDevice_2_0> *cooling_devices) const {
|
|
std::vector<CoolingDevice_2_0> ret;
|
|
for (const auto &name_info_pair : cooling_device_info_map_) {
|
|
CoolingDevice_2_0 value;
|
|
if (filterType && name_info_pair.second.type != type) {
|
|
continue;
|
|
}
|
|
if (readCoolingDevice(name_info_pair.first, &value)) {
|
|
ret.emplace_back(std::move(value));
|
|
} else {
|
|
LOG(ERROR) << __func__ << ": error reading cooling device: " << name_info_pair.first;
|
|
return false;
|
|
}
|
|
}
|
|
*cooling_devices = ret;
|
|
return ret.size() > 0;
|
|
}
|
|
|
|
bool ThermalHelper::fillCpuUsages(hidl_vec<CpuUsage> *cpu_usages) const {
|
|
cpu_usages->resize(kMaxCpus);
|
|
for (int i = 0; i < kMaxCpus; i++) {
|
|
(*cpu_usages)[i].name = StringPrintf("cpu%d", i);
|
|
(*cpu_usages)[i].active = 0;
|
|
(*cpu_usages)[i].total = 0;
|
|
(*cpu_usages)[i].isOnline = false;
|
|
}
|
|
parseCpuUsagesFileAndAssignUsages(cpu_usages);
|
|
return true;
|
|
}
|
|
|
|
bool ThermalHelper::checkVirtualSensor(std::string_view sensor_name, std::string *temp) const {
|
|
float temp_val = 0.0;
|
|
|
|
const auto &sensor_info = sensor_info_map_.at(sensor_name.data());
|
|
float offset = sensor_info.virtual_sensor_info->offset;
|
|
for (size_t i = 0; i < sensor_info.virtual_sensor_info->linked_sensors.size(); i++) {
|
|
std::string data;
|
|
const auto &linked_sensor_info =
|
|
sensor_info_map_.at(sensor_info.virtual_sensor_info->linked_sensors[i].data());
|
|
if (linked_sensor_info.virtual_sensor_info == nullptr) {
|
|
if (!thermal_sensors_.readThermalFile(
|
|
sensor_info.virtual_sensor_info->linked_sensors[i], &data)) {
|
|
continue;
|
|
}
|
|
} else if (!checkVirtualSensor(sensor_info.virtual_sensor_info->linked_sensors[i], &data)) {
|
|
return false;
|
|
}
|
|
|
|
LOG(VERBOSE) << sensor_name.data() << "'s linked sensor "
|
|
<< sensor_info.virtual_sensor_info->linked_sensors[i] << ": temp = " << data;
|
|
data = ::android::base::Trim(data);
|
|
float sensor_reading = std::stof(data);
|
|
if (std::isnan(sensor_info.virtual_sensor_info->coefficients[i])) {
|
|
return false;
|
|
}
|
|
float coefficient = sensor_info.virtual_sensor_info->coefficients[i];
|
|
switch (sensor_info.virtual_sensor_info->formula) {
|
|
case FormulaOption::COUNT_THRESHOLD:
|
|
if ((coefficient < 0 && sensor_reading < -coefficient) ||
|
|
(coefficient >= 0 && sensor_reading >= coefficient))
|
|
temp_val += 1;
|
|
break;
|
|
case FormulaOption::WEIGHTED_AVG:
|
|
temp_val += sensor_reading * coefficient;
|
|
break;
|
|
case FormulaOption::MAXIMUM:
|
|
if (i == 0)
|
|
temp_val = std::numeric_limits<float>::lowest();
|
|
if (sensor_reading * coefficient > temp_val)
|
|
temp_val = sensor_reading * coefficient;
|
|
break;
|
|
case FormulaOption::MINIMUM:
|
|
if (i == 0)
|
|
temp_val = std::numeric_limits<float>::max();
|
|
if (sensor_reading * coefficient < temp_val)
|
|
temp_val = sensor_reading * coefficient;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
*temp = std::to_string(temp_val + offset);
|
|
return true;
|
|
}
|
|
|
|
// This is called in the different thread context and will update sensor_status
|
|
// uevent_sensors is the set of sensors which trigger uevent from thermal core driver.
|
|
std::chrono::milliseconds ThermalHelper::thermalWatcherCallbackFunc(
|
|
const std::set<std::string> &uevent_sensors) {
|
|
std::vector<Temperature_2_0> temps;
|
|
std::vector<std::string> cooling_devices_to_update;
|
|
std::set<std::string> updated_power_rails;
|
|
boot_clock::time_point now = boot_clock::now();
|
|
auto min_sleep_ms = std::chrono::milliseconds::max();
|
|
|
|
for (auto &name_status_pair : sensor_status_map_) {
|
|
bool force_update = false;
|
|
bool severity_changed = false;
|
|
Temperature_2_0 temp;
|
|
TemperatureThreshold threshold;
|
|
SensorStatus &sensor_status = name_status_pair.second;
|
|
const SensorInfo &sensor_info = sensor_info_map_.at(name_status_pair.first);
|
|
|
|
// Only handle the sensors in allow list
|
|
if (!sensor_info.is_monitor) {
|
|
continue;
|
|
}
|
|
|
|
std::chrono::milliseconds time_elapsed_ms = std::chrono::milliseconds::zero();
|
|
auto sleep_ms = (sensor_status.severity != ThrottlingSeverity::NONE)
|
|
? sensor_info.passive_delay
|
|
: sensor_info.polling_delay;
|
|
// Check if the sensor need to be updated
|
|
if (sensor_status.last_update_time == boot_clock::time_point::min()) {
|
|
force_update = true;
|
|
LOG(VERBOSE) << "Force update " << name_status_pair.first
|
|
<< "'s temperature after booting";
|
|
} else {
|
|
time_elapsed_ms = std::chrono::duration_cast<std::chrono::milliseconds>(
|
|
now - sensor_status.last_update_time);
|
|
|
|
if (time_elapsed_ms > sleep_ms) {
|
|
// Update the sensor because sleep timeout
|
|
force_update = true;
|
|
} else if (uevent_sensors.size() &&
|
|
uevent_sensors.find((sensor_info.virtual_sensor_info != nullptr)
|
|
? sensor_info.virtual_sensor_info->trigger_sensor
|
|
: name_status_pair.first) !=
|
|
uevent_sensors.end()) {
|
|
// Update the sensor from uevent
|
|
force_update = true;
|
|
} else if (sensor_info.virtual_sensor_info != nullptr) {
|
|
// Update the virtual sensor if it's trigger sensor over the threshold
|
|
const auto trigger_sensor_status =
|
|
sensor_status_map_.at(sensor_info.virtual_sensor_info->trigger_sensor);
|
|
if (trigger_sensor_status.severity != ThrottlingSeverity::NONE) {
|
|
force_update = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
LOG(VERBOSE) << "sensor " << name_status_pair.first
|
|
<< ": time_elpased=" << time_elapsed_ms.count()
|
|
<< ", sleep_ms=" << sleep_ms.count() << ", force_update = " << force_update;
|
|
|
|
if (!force_update) {
|
|
auto timeout_remaining = sleep_ms - time_elapsed_ms;
|
|
if (min_sleep_ms > timeout_remaining) {
|
|
min_sleep_ms = timeout_remaining;
|
|
}
|
|
LOG(VERBOSE) << "sensor " << name_status_pair.first
|
|
<< ": timeout_remaining=" << timeout_remaining.count();
|
|
continue;
|
|
}
|
|
|
|
std::pair<ThrottlingSeverity, ThrottlingSeverity> throtting_status;
|
|
if (!readTemperature(name_status_pair.first, &temp, &throtting_status,
|
|
(sensor_info.virtual_sensor_info != nullptr))) {
|
|
LOG(ERROR) << __func__
|
|
<< ": error reading temperature for sensor: " << name_status_pair.first;
|
|
continue;
|
|
}
|
|
if (!readTemperatureThreshold(name_status_pair.first, &threshold)) {
|
|
LOG(ERROR) << __func__ << ": error reading temperature threshold for sensor: "
|
|
<< name_status_pair.first;
|
|
continue;
|
|
}
|
|
|
|
{
|
|
// writer lock
|
|
std::unique_lock<std::shared_mutex> _lock(sensor_status_map_mutex_);
|
|
if (throtting_status.first != sensor_status.prev_hot_severity) {
|
|
sensor_status.prev_hot_severity = throtting_status.first;
|
|
}
|
|
if (throtting_status.second != sensor_status.prev_cold_severity) {
|
|
sensor_status.prev_cold_severity = throtting_status.second;
|
|
}
|
|
if (temp.throttlingStatus != sensor_status.severity) {
|
|
temps.push_back(temp);
|
|
severity_changed = true;
|
|
sensor_status.severity = temp.throttlingStatus;
|
|
sleep_ms = (sensor_status.severity != ThrottlingSeverity::NONE)
|
|
? sensor_info.passive_delay
|
|
: sensor_info.polling_delay;
|
|
}
|
|
}
|
|
|
|
if (sensor_status.severity != ThrottlingSeverity::NONE) {
|
|
LOG(INFO) << temp.name << ": " << temp.value << " degC";
|
|
} else {
|
|
LOG(VERBOSE) << temp.name << ": " << temp.value << " degC";
|
|
}
|
|
|
|
// Start PID computation
|
|
if (sensor_status.pid_request_map.size()) {
|
|
size_t target_state = getTargetStateOfPID(sensor_info, sensor_status);
|
|
float power_budget = pidPowerCalculator(temp, sensor_info, &sensor_status,
|
|
time_elapsed_ms, target_state);
|
|
if (!requestCdevByPower(name_status_pair.first, &sensor_status, sensor_info,
|
|
power_budget, target_state)) {
|
|
LOG(ERROR) << "Sensor " << temp.name << " PID request cdev failed";
|
|
}
|
|
}
|
|
|
|
if (sensor_status.hard_limit_request_map.size()) {
|
|
// Start hard limit computation
|
|
requestCdevBySeverity(name_status_pair.first, &sensor_status, sensor_info);
|
|
}
|
|
|
|
// Aggregate cooling device request
|
|
if (sensor_status.pid_request_map.size() || sensor_status.hard_limit_request_map.size()) {
|
|
if (sensor_status.severity == ThrottlingSeverity::NONE) {
|
|
power_files_.setPowerDataToDefault(name_status_pair.first);
|
|
} else {
|
|
for (const auto &binded_cdev_info_pair :
|
|
sensor_info.throttling_info->binded_cdev_info_map) {
|
|
if (binded_cdev_info_pair.second.power_rail != "") {
|
|
const auto &power_rail_info =
|
|
power_rail_info_map_.at(binded_cdev_info_pair.second.power_rail);
|
|
|
|
if (power_files_.throttlingReleaseUpdate(
|
|
name_status_pair.first, binded_cdev_info_pair.first,
|
|
sensor_status.severity, time_elapsed_ms,
|
|
binded_cdev_info_pair.second, power_rail_info,
|
|
!updated_power_rails.count(
|
|
binded_cdev_info_pair.second.power_rail),
|
|
severity_changed)) {
|
|
updated_power_rails.insert(binded_cdev_info_pair.second.power_rail);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
computeCoolingDevicesRequest(name_status_pair.first, sensor_info, sensor_status,
|
|
&cooling_devices_to_update);
|
|
}
|
|
|
|
if (min_sleep_ms > sleep_ms) {
|
|
min_sleep_ms = sleep_ms;
|
|
}
|
|
LOG(VERBOSE) << "Sensor " << name_status_pair.first << ": sleep_ms=" << sleep_ms.count()
|
|
<< ", min_sleep_ms voting result=" << min_sleep_ms.count();
|
|
sensor_status.last_update_time = now;
|
|
}
|
|
|
|
if (!cooling_devices_to_update.empty()) {
|
|
updateCoolingDevices(cooling_devices_to_update);
|
|
}
|
|
|
|
if (!temps.empty()) {
|
|
for (const auto &t : temps) {
|
|
if (sensor_info_map_.at(t.name).send_cb && cb_) {
|
|
cb_(t);
|
|
}
|
|
|
|
if (sensor_info_map_.at(t.name).send_powerhint && isAidlPowerHalExist()) {
|
|
sendPowerExtHint(t);
|
|
}
|
|
}
|
|
}
|
|
|
|
power_files_.clearEnergyInfoMap();
|
|
return min_sleep_ms < kMinPollIntervalMs ? kMinPollIntervalMs : min_sleep_ms;
|
|
}
|
|
|
|
bool ThermalHelper::connectToPowerHal() {
|
|
return power_hal_service_.connect();
|
|
}
|
|
|
|
void ThermalHelper::updateSupportedPowerHints() {
|
|
for (auto const &name_status_pair : sensor_info_map_) {
|
|
if (!(name_status_pair.second.send_powerhint)) {
|
|
continue;
|
|
}
|
|
ThrottlingSeverity current_severity = ThrottlingSeverity::NONE;
|
|
for (const auto &severity : hidl_enum_range<ThrottlingSeverity>()) {
|
|
if (severity == ThrottlingSeverity::NONE) {
|
|
supported_powerhint_map_[name_status_pair.first][ThrottlingSeverity::NONE] =
|
|
ThrottlingSeverity::NONE;
|
|
continue;
|
|
}
|
|
|
|
bool isSupported = false;
|
|
ndk::ScopedAStatus isSupportedResult;
|
|
|
|
if (power_hal_service_.isPowerHalExtConnected()) {
|
|
isSupported = power_hal_service_.isModeSupported(name_status_pair.first, severity);
|
|
}
|
|
if (isSupported)
|
|
current_severity = severity;
|
|
supported_powerhint_map_[name_status_pair.first][severity] = current_severity;
|
|
}
|
|
}
|
|
}
|
|
|
|
void ThermalHelper::sendPowerExtHint(const Temperature_2_0 &t) {
|
|
std::lock_guard<std::shared_mutex> lock(sensor_status_map_mutex_);
|
|
|
|
ThrottlingSeverity prev_hint_severity;
|
|
prev_hint_severity = sensor_status_map_.at(t.name).prev_hint_severity;
|
|
ThrottlingSeverity current_hint_severity = supported_powerhint_map_[t.name][t.throttlingStatus];
|
|
|
|
if (prev_hint_severity == current_hint_severity)
|
|
return;
|
|
|
|
if (prev_hint_severity != ThrottlingSeverity::NONE) {
|
|
power_hal_service_.setMode(t.name, prev_hint_severity, false);
|
|
}
|
|
|
|
if (current_hint_severity != ThrottlingSeverity::NONE) {
|
|
power_hal_service_.setMode(t.name, current_hint_severity, true);
|
|
}
|
|
|
|
sensor_status_map_[t.name].prev_hint_severity = current_hint_severity;
|
|
}
|
|
} // namespace implementation
|
|
} // namespace V2_0
|
|
} // namespace thermal
|
|
} // namespace hardware
|
|
} // namespace android
|