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 <unordered_map> 26 #include <vector> 27 28 #include <sdbusplus/bus.hpp> 29 30 /* Configuration. */ 31 #include "conf.hpp" 32 #include "config.h" 33 #include <dbus/dbusconfiguration.hpp> 34 35 /* Misc. */ 36 #include "util.hpp" 37 38 /* Controllers & Sensors. */ 39 #include "interfaces.hpp" 40 #include "pid/builder.hpp" 41 #include "pid/builderconfig.hpp" 42 #include "pid/zone.hpp" 43 #include "sensors/builder.hpp" 44 #include "sensors/builderconfig.hpp" 45 #include "sensors/manager.hpp" 46 47 /* Threads. */ 48 #include "pid/pidthread.hpp" 49 #include "threads/busthread.hpp" 50 51 52 /* The YAML converted sensor list. */ 53 extern std::map<std::string, struct sensor> SensorConfig; 54 /* The YAML converted PID list. */ 55 extern std::map<int64_t, PIDConf> ZoneConfig; 56 /* The YAML converted Zone configuration. */ 57 extern std::map<int64_t, struct zone> ZoneDetailsConfig; 58 59 int main(int argc, char* argv[]) 60 { 61 int rc = 0; 62 int c; 63 std::string configPath = ""; 64 65 while (1) 66 { 67 static struct option long_options[] = 68 { 69 {"conf", required_argument, 0, 'c'}, 70 {0, 0, 0, 0} 71 }; 72 73 int option_index = 0; 74 c = getopt_long(argc, argv, "c:", long_options, &option_index); 75 76 if (c == -1) 77 { 78 break; 79 } 80 81 switch (c) 82 { 83 case 'c': 84 configPath = std::string {optarg}; 85 break; 86 default: 87 /* skip garbage. */ 88 continue; 89 } 90 } 91 92 auto ModeControlBus = sdbusplus::bus::new_default(); 93 if (configureDbus) 94 { 95 dbus_configuration::init(ModeControlBus); 96 } 97 SensorManager mgmr; 98 std::unordered_map<int64_t, std::unique_ptr<PIDZone>> zones; 99 100 // Create a manager for the ModeBus because we own it. 101 static constexpr auto modeRoot = "/xyz/openbmc_project/settings/fanctrl"; 102 sdbusplus::server::manager::manager(ModeControlBus, modeRoot); 103 104 /* 105 * When building the sensors, if any of the dbus passive ones aren't on the 106 * bus, it'll fail immediately. 107 */ 108 if (configPath.length() > 0) 109 { 110 try 111 { 112 mgmr = BuildSensorsFromConfig(configPath); 113 zones = BuildZonesFromConfig(configPath, mgmr, ModeControlBus); 114 } 115 catch (const std::exception& e) 116 { 117 std::cerr << "Failed during building: " << e.what() << "\n"; 118 exit(EXIT_FAILURE); /* fatal error. */ 119 } 120 } 121 else 122 { 123 mgmr = BuildSensors(SensorConfig); 124 zones = BuildZones(ZoneConfig, ZoneDetailsConfig, mgmr, ModeControlBus); 125 } 126 127 if (0 == zones.size()) 128 { 129 std::cerr << "No zones defined, exiting.\n"; 130 return rc; 131 } 132 133 /* 134 * All sensors are managed by one manager, but each zone has a pointer to 135 * it. 136 */ 137 138 auto& HostSensorBus = mgmr.getHostBus(); 139 auto& PassiveListeningBus = mgmr.getPassiveBus(); 140 141 std::cerr << "Starting threads\n"; 142 143 /* TODO(venture): Ask SensorManager if we have any passive sensors. */ 144 struct ThreadParams p = 145 { 146 std::ref(PassiveListeningBus), 147 "" 148 }; 149 std::thread l(BusThread, std::ref(p)); 150 151 /* TODO(venture): Ask SensorManager if we have any host sensors. */ 152 static constexpr auto hostBus = "xyz.openbmc_project.Hwmon.external"; 153 struct ThreadParams e = 154 { 155 std::ref(HostSensorBus), 156 hostBus 157 }; 158 std::thread te(BusThread, std::ref(e)); 159 160 static constexpr auto modeBus = "xyz.openbmc_project.State.FanCtrl"; 161 struct ThreadParams m = 162 { 163 std::ref(ModeControlBus), 164 modeBus 165 }; 166 std::thread tm(BusThread, std::ref(m)); 167 168 std::vector<std::thread> zoneThreads; 169 170 /* TODO(venture): This was designed to have one thread per zone, but really 171 * it could have one thread for all the zones and iterate through each 172 * sequentially as it goes -- and it'd probably be fast enough to do that, 173 * however, a system isn't likely going to have more than a couple zones. 174 * If it only has a couple zones, then this is fine. 175 */ 176 for (auto& i : zones) 177 { 178 std::cerr << "pushing zone" << std::endl; 179 zoneThreads.push_back(std::thread(PIDControlThread, i.second.get())); 180 } 181 182 l.join(); 183 te.join(); 184 tm.join(); 185 for (auto& t : zoneThreads) 186 { 187 t.join(); 188 } 189 190 return rc; 191 } 192 193