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