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 #include "util.hpp" 19 #include "zone.hpp" 20 21 22 std::unique_ptr<PIDController> ThermalController::CreateThermalPid( 23 std::shared_ptr<PIDZone> owner, 24 const std::string& id, 25 std::vector<std::string>& inputs, 26 float setpoint, 27 ec::pidinfo initial) 28 { 29 auto thermal = std::make_unique<ThermalController>(id, inputs, owner); 30 31 ec::pid_info_t* info = thermal->get_pid_info(); 32 thermal->set_setpoint(setpoint); 33 34 InitializePIDStruct(info, &initial); 35 36 return thermal; 37 } 38 39 //bmc_host_sensor_value_float 40 float ThermalController::input_proc(void) 41 { 42 /* 43 * This only supports one thermal input because it doesn't yet know how to 44 * handle merging them, probably max? 45 */ 46 double value = _owner->getCachedValue(_inputs.at(0)); 47 return static_cast<float>(value); 48 } 49 50 // bmc_get_setpt 51 float ThermalController::setpt_proc(void) 52 { 53 float setpoint = get_setpoint(); 54 55 /* TODO(venture): Thermal setpoint invalid? */ 56 #if 0 57 if (-1 == setpoint) 58 { 59 return 0.0f; 60 } 61 else 62 { 63 return setpoint; 64 } 65 #endif 66 return setpoint; 67 } 68 69 // bmc_set_pid_output 70 void ThermalController::output_proc(float value) 71 { 72 _owner->addRPMSetPoint(value); 73 74 return; 75 } 76 77