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