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 "util.hpp" 20 #include "zone.hpp" 21 22 std::unique_ptr<PIDController> ThermalController::createThermalPid( 23 ZoneInterface* owner, const std::string& id, 24 const std::vector<std::string>& inputs, double setpoint, 25 const ec::pidinfo& initial) 26 { 27 // ThermalController currently only supports precisely one input. 28 if (inputs.size() != 1) 29 { 30 return nullptr; 31 } 32 33 auto thermal = std::make_unique<ThermalController>(id, inputs, owner); 34 35 ec::pid_info_t* info = thermal->getPIDInfo(); 36 thermal->setSetpoint(setpoint); 37 38 initializePIDStruct(info, initial); 39 40 return thermal; 41 } 42 43 // bmc_host_sensor_value_double 44 double ThermalController::inputProc(void) 45 { 46 /* 47 * This only supports one thermal input because it doesn't yet know how to 48 * handle merging them, probably max? 49 */ 50 double value = _owner->getCachedValue(_inputs.at(0)); 51 return value; 52 } 53 54 // bmc_get_setpt 55 double ThermalController::setptProc(void) 56 { 57 double setpoint = getSetpoint(); 58 59 /* TODO(venture): Thermal setpoint invalid? */ 60 #if 0 61 if (-1 == setpoint) 62 { 63 return 0.0f; 64 } 65 else 66 { 67 return setpoint; 68 } 69 #endif 70 return setpoint; 71 } 72 73 // bmc_set_pid_output 74 void ThermalController::outputProc(double value) 75 { 76 _owner->addRPMSetPoint(value); 77 78 return; 79 } 80