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