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 "pid/builder.hpp" 18 19 #include "conf.hpp" 20 #include "pid/controller.hpp" 21 #include "pid/fancontroller.hpp" 22 #include "pid/stepwisecontroller.hpp" 23 #include "pid/thermalcontroller.hpp" 24 25 #include <iostream> 26 #include <memory> 27 #include <sdbusplus/bus.hpp> 28 #include <unordered_map> 29 30 static constexpr bool deferSignals = true; 31 static constexpr auto objectPath = "/xyz/openbmc_project/settings/fanctrl/zone"; 32 33 static std::string getControlPath(int64_t zone) 34 { 35 return std::string(objectPath) + std::to_string(zone); 36 } 37 38 std::unordered_map<int64_t, std::unique_ptr<PIDZone>> 39 buildZones(std::map<int64_t, PIDConf>& zonePids, 40 std::map<int64_t, struct ZoneConfig>& zoneConfigs, 41 SensorManager& mgr, sdbusplus::bus::bus& modeControlBus) 42 { 43 std::unordered_map<int64_t, std::unique_ptr<PIDZone>> zones; 44 45 for (const auto& zi : zonePids) 46 { 47 auto zoneId = static_cast<int64_t>(zi.first); 48 /* The above shouldn't be necessary but is, and I am having trouble 49 * locating my notes on why. If I recall correctly it was casting it 50 * down to a byte in at least some cases causing weird behaviors. 51 */ 52 53 auto zoneConf = zoneConfigs.find(zoneId); 54 if (zoneConf == zoneConfigs.end()) 55 { 56 /* The Zone doesn't have a configuration, bail. */ 57 static constexpr auto err = 58 "Bailing during load, missing Zone Configuration"; 59 std::cerr << err << std::endl; 60 throw std::runtime_error(err); 61 } 62 63 const PIDConf& pidConfig = zi.second; 64 65 auto zone = std::make_unique<PIDZone>( 66 zoneId, zoneConf->second.minthermalrpm, 67 zoneConf->second.failsafepercent, mgr, modeControlBus, 68 getControlPath(zi.first).c_str(), deferSignals); 69 70 std::cerr << "Zone Id: " << zone->getZoneID() << "\n"; 71 72 // For each PID create a Controller and a Sensor. 73 for (const auto& pit : pidConfig) 74 { 75 std::vector<std::string> inputs; 76 std::string name = pit.first; 77 const struct ControllerInfo* info = &pit.second; 78 79 std::cerr << "PID name: " << name << "\n"; 80 81 /* 82 * TODO(venture): Need to check if input is known to the 83 * SensorManager. 84 */ 85 if (info->type == "fan") 86 { 87 for (const auto& i : info->inputs) 88 { 89 inputs.push_back(i); 90 zone->addFanInput(i); 91 } 92 93 auto pid = FanController::createFanPid(zone.get(), name, inputs, 94 info->pidInfo); 95 zone->addFanPID(std::move(pid)); 96 } 97 else if (info->type == "temp" || info->type == "margin") 98 { 99 for (const auto& i : info->inputs) 100 { 101 inputs.push_back(i); 102 zone->addThermalInput(i); 103 } 104 105 ThermalType type; 106 if (info->type == "temp") 107 { 108 type = ThermalType::absolute; 109 } 110 else 111 { 112 type = ThermalType::margin; 113 } 114 115 auto pid = ThermalController::createThermalPid( 116 zone.get(), name, inputs, info->setpoint, info->pidInfo, 117 type); 118 119 zone->addThermalPID(std::move(pid)); 120 } 121 else if (info->type == "stepwise") 122 { 123 for (const auto& i : info->inputs) 124 { 125 inputs.push_back(i); 126 zone->addThermalInput(i); 127 } 128 auto stepwise = StepwiseController::createStepwiseController( 129 zone.get(), name, inputs, info->stepwiseInfo); 130 zone->addThermalPID(std::move(stepwise)); 131 } 132 133 std::cerr << "inputs: "; 134 for (const auto& i : inputs) 135 { 136 std::cerr << i << ", "; 137 } 138 std::cerr << "\n"; 139 } 140 141 zone->emit_object_added(); 142 zones[zoneId] = std::move(zone); 143 } 144 145 return zones; 146 } 147