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 std::vector<std::string>& inputs, float setpoint, ec::pidinfo initial) 25 { 26 // ThermalController currently only supports precisely one input. 27 if (inputs.size() != 1) 28 { 29 return nullptr; 30 } 31 32 auto thermal = std::make_unique<ThermalController>(id, inputs, owner); 33 34 ec::pid_info_t* info = thermal->get_pid_info(); 35 thermal->set_setpoint(setpoint); 36 37 InitializePIDStruct(info, &initial); 38 39 return thermal; 40 } 41 42 // bmc_host_sensor_value_float 43 float ThermalController::input_proc(void) 44 { 45 /* 46 * This only supports one thermal input because it doesn't yet know how to 47 * handle merging them, probably max? 48 */ 49 double value = _owner->getCachedValue(_inputs.at(0)); 50 return static_cast<float>(value); 51 } 52 53 // bmc_get_setpt 54 float ThermalController::setpt_proc(void) 55 { 56 float setpoint = get_setpoint(); 57 58 /* TODO(venture): Thermal setpoint invalid? */ 59 #if 0 60 if (-1 == setpoint) 61 { 62 return 0.0f; 63 } 64 else 65 { 66 return setpoint; 67 } 68 #endif 69 return setpoint; 70 } 71 72 // bmc_set_pid_output 73 void ThermalController::output_proc(float value) 74 { 75 _owner->addRPMSetPoint(value); 76 77 return; 78 } 79