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 <chrono> 18 #include <experimental/any> 19 #include <getopt.h> 20 #include <iostream> 21 #include <map> 22 #include <memory> 23 #include <mutex> /* not yet used. */ 24 #include <thread> 25 #include <vector> 26 27 #include <sdbusplus/bus.hpp> 28 29 /* Configuration. */ 30 #include "conf.hpp" 31 32 /* Misc. */ 33 #include "util.hpp" 34 35 /* Controllers & Sensors. */ 36 #include "interfaces.hpp" 37 #include "pid/zone.hpp" 38 #include "sensors/builder.hpp" 39 #include "sensors/builderconfig.hpp" 40 #include "sensors/manager.hpp" 41 42 /* Threads. */ 43 #include "pid/pidthread.hpp" 44 #include "threads/busthread.hpp" 45 46 47 /* The YAML converted sensor list. */ 48 extern std::map<std::string, struct sensor> SensorConfig; 49 /* The YAML converted PID list. */ 50 extern std::map<int64_t, PIDConf> ZoneConfig; 51 /* The YAML converted Zone configuration. */ 52 extern std::map<int64_t, struct zone> ZoneDetailsConfig; 53 54 int main(int argc, char* argv[]) 55 { 56 int rc = 0; 57 int c; 58 std::string configPath = ""; 59 60 while (1) 61 { 62 static struct option long_options[] = 63 { 64 {"conf", required_argument, 0, 'c'}, 65 {0, 0, 0, 0} 66 }; 67 68 int option_index = 0; 69 c = getopt_long(argc, argv, "c:", long_options, &option_index); 70 71 if (c == -1) 72 { 73 break; 74 } 75 76 switch (c) 77 { 78 case 'c': 79 configPath = std::string {optarg}; 80 break; 81 default: 82 /* skip garbage. */ 83 continue; 84 } 85 } 86 87 auto ModeControlBus = sdbusplus::bus::new_default(); 88 std::shared_ptr<SensorManager> mgmr; 89 std::map<int64_t, std::shared_ptr<PIDZone>> zones; 90 91 // Create a manager for the ModeBus because we own it. 92 static constexpr auto modeRoot = "/xyz/openbmc_project/settings/fanctrl"; 93 sdbusplus::server::manager::manager(ModeControlBus, modeRoot); 94 95 /* 96 * When building the sensors, if any of the dbus passive ones aren't on the 97 * bus, it'll fail immediately. 98 */ 99 if (configPath.length() > 0) 100 { 101 try 102 { 103 mgmr = BuildSensorsFromConfig(configPath); 104 zones = BuildZonesFromConfig(configPath, mgmr, ModeControlBus); 105 } 106 catch (const std::exception& e) 107 { 108 std::cerr << "Failed during building: " << e.what() << "\n"; 109 exit(EXIT_FAILURE); /* fatal error. */ 110 } 111 } 112 else 113 { 114 mgmr = BuildSensors(SensorConfig); 115 zones = BuildZones(ZoneConfig, ZoneDetailsConfig, mgmr, ModeControlBus); 116 } 117 118 if (0 == zones.size()) 119 { 120 std::cerr << "No zones defined, exiting.\n"; 121 return rc; 122 } 123 124 /* 125 * All sensors are managed by one manager, but each zone has a pointer to 126 * it. 127 */ 128 129 auto& HostSensorBus = mgmr->getHostBus(); 130 auto& PassiveListeningBus = mgmr->getPassiveBus(); 131 132 std::cerr << "Starting threads\n"; 133 134 /* TODO(venture): Ask SensorManager if we have any passive sensors. */ 135 struct ThreadParams p = 136 { 137 std::ref(PassiveListeningBus), 138 "" 139 }; 140 std::thread l(BusThread, std::ref(p)); 141 142 /* TODO(venture): Ask SensorManager if we have any host sensors. */ 143 static constexpr auto hostBus = "xyz.openbmc_project.Hwmon.external"; 144 struct ThreadParams e = 145 { 146 std::ref(HostSensorBus), 147 hostBus 148 }; 149 std::thread te(BusThread, std::ref(e)); 150 151 static constexpr auto modeBus = "xyz.openbmc_project.State.FanCtrl"; 152 struct ThreadParams m = 153 { 154 std::ref(ModeControlBus), 155 modeBus 156 }; 157 std::thread tm(BusThread, std::ref(m)); 158 159 std::vector<std::thread> zoneThreads; 160 161 /* TODO(venture): This was designed to have one thread per zone, but really 162 * it could have one thread for all the zones and iterate through each 163 * sequentially as it goes -- and it'd probably be fast enough to do that, 164 * however, a system isn't likely going to have more than a couple zones. 165 * If it only has a couple zones, then this is fine. 166 */ 167 for (auto& i : zones) 168 { 169 std::cerr << "pushing zone" << std::endl; 170 zoneThreads.push_back(std::thread(PIDControlThread, i.second)); 171 } 172 173 l.join(); 174 te.join(); 175 tm.join(); 176 for (auto& t : zoneThreads) 177 { 178 t.join(); 179 } 180 181 return rc; 182 } 183 184