1 /** 2 * Copyright 2017 Google Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "thermalcontroller.hpp" 18 19 #include "errors/exception.hpp" 20 #include "util.hpp" 21 #include "zone.hpp" 22 23 std::unique_ptr<PIDController> ThermalController::createThermalPid( 24 ZoneInterface* owner, const std::string& id, 25 const std::vector<std::string>& inputs, double setpoint, 26 const ec::pidinfo& initial, const ThermalType& type) 27 { 28 // ThermalController requires at least 1 input 29 if (inputs.empty()) 30 { 31 throw ControllerBuildException("Thermal controller missing inputs"); 32 return nullptr; 33 } 34 35 auto thermal = std::make_unique<ThermalController>(id, inputs, type, owner); 36 37 ec::pid_info_t* info = thermal->getPIDInfo(); 38 thermal->setSetpoint(setpoint); 39 40 initializePIDStruct(info, initial); 41 42 return thermal; 43 } 44 45 // bmc_host_sensor_value_double 46 double ThermalController::inputProc(void) 47 { 48 double value; 49 const double& (*compare)(const double&, const double&); 50 if (type == ThermalType::margin) 51 { 52 value = std::numeric_limits<double>::max(); 53 compare = std::min<double>; 54 } 55 else 56 { 57 value = std::numeric_limits<double>::lowest(); 58 compare = std::max<double>; 59 } 60 61 for (const auto& in : _inputs) 62 { 63 value = compare(value, _owner->getCachedValue(in)); 64 } 65 66 return value; 67 } 68 69 // bmc_get_setpt 70 double ThermalController::setptProc(void) 71 { 72 double setpoint = getSetpoint(); 73 74 /* TODO(venture): Thermal setpoint invalid? */ 75 #if 0 76 if (-1 == setpoint) 77 { 78 return 0.0f; 79 } 80 else 81 { 82 return setpoint; 83 } 84 #endif 85 return setpoint; 86 } 87 88 // bmc_set_pid_output 89 void ThermalController::outputProc(double value) 90 { 91 _owner->addRPMSetPoint(value); 92 93 return; 94 } 95