| /** |
| * Copyright 2017 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "thermalcontroller.hpp" |
| |
| #include "errors/exception.hpp" |
| #include "util.hpp" |
| #include "zone.hpp" |
| |
| #include <algorithm> |
| |
| ThermalType getThermalType(const std::string& typeString) |
| { |
| /* Currently it only supports the two types. */ |
| return (typeString == "temp") ? ThermalType::absolute : ThermalType::margin; |
| } |
| |
| bool isThermalType(const std::string& typeString) |
| { |
| static const std::vector<std::string> thermalTypes = {"temp", "margin"}; |
| return std::count(thermalTypes.begin(), thermalTypes.end(), typeString); |
| } |
| |
| std::unique_ptr<PIDController> ThermalController::createThermalPid( |
| ZoneInterface* owner, const std::string& id, |
| const std::vector<std::string>& inputs, double setpoint, |
| const ec::pidinfo& initial, const ThermalType& type) |
| { |
| // ThermalController requires at least 1 input |
| if (inputs.empty()) |
| { |
| throw ControllerBuildException("Thermal controller missing inputs"); |
| return nullptr; |
| } |
| |
| auto thermal = std::make_unique<ThermalController>(id, inputs, type, owner); |
| |
| ec::pid_info_t* info = thermal->getPIDInfo(); |
| thermal->setSetpoint(setpoint); |
| |
| initializePIDStruct(info, initial); |
| |
| return thermal; |
| } |
| |
| // bmc_host_sensor_value_double |
| double ThermalController::inputProc(void) |
| { |
| double value; |
| const double& (*compare)(const double&, const double&); |
| if (type == ThermalType::margin) |
| { |
| value = std::numeric_limits<double>::max(); |
| compare = std::min<double>; |
| } |
| else |
| { |
| value = std::numeric_limits<double>::lowest(); |
| compare = std::max<double>; |
| } |
| |
| for (const auto& in : _inputs) |
| { |
| value = compare(value, _owner->getCachedValue(in)); |
| } |
| |
| return value; |
| } |
| |
| // bmc_get_setpt |
| double ThermalController::setptProc(void) |
| { |
| double setpoint = getSetpoint(); |
| |
| /* TODO(venture): Thermal setpoint invalid? */ |
| #if 0 |
| if (-1 == setpoint) |
| { |
| return 0.0f; |
| } |
| else |
| { |
| return setpoint; |
| } |
| #endif |
| return setpoint; |
| } |
| |
| // bmc_set_pid_output |
| void ThermalController::outputProc(double value) |
| { |
| _owner->addSetPoint(value); |
| |
| return; |
| } |