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