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 "build/buildjson.hpp" 20 #include "conf.hpp" 21 #include "interfaces.hpp" 22 #include "pid/builder.hpp" 23 #include "pid/buildjson.hpp" 24 #include "pid/pidthread.hpp" 25 #include "pid/zone.hpp" 26 #include "sensors/builder.hpp" 27 #include "sensors/buildjson.hpp" 28 #include "sensors/manager.hpp" 29 #include "threads/busthread.hpp" 30 #include "util.hpp" 31 32 #include <getopt.h> 33 34 #include <chrono> 35 #include <iostream> 36 #include <map> 37 #include <memory> 38 #include <sdbusplus/bus.hpp> 39 #include <thread> 40 #include <unordered_map> 41 #include <utility> 42 #include <vector> 43 44 #if CONFIGURE_DBUS 45 #include "dbus/dbusconfiguration.hpp" 46 #endif 47 48 /* The YAML converted sensor list. */ 49 std::map<std::string, struct SensorConfig> sensorConfig = {}; 50 /* The YAML converted PID list. */ 51 std::map<int64_t, PIDConf> zoneConfig = {}; 52 /* The YAML converted Zone configuration. */ 53 std::map<int64_t, struct ZoneConfig> zoneDetailsConfig = {}; 54 55 /** the swampd daemon will check for the existence of this file. */ 56 constexpr auto jsonConfigurationPath = "/usr/share/swampd/config.json"; 57 58 int main(int argc, char* argv[]) 59 { 60 int rc = 0; 61 std::string configPath = ""; 62 63 while (1) 64 { 65 // clang-format off 66 static struct option long_options[] = { 67 {"conf", required_argument, 0, 'c'}, 68 {0, 0, 0, 0} 69 }; 70 // clang-format on 71 72 int option_index = 0; 73 int c = getopt_long(argc, argv, "c:", long_options, &option_index); 74 75 if (c == -1) 76 { 77 break; 78 } 79 80 switch (c) 81 { 82 case 'c': 83 configPath = std::string{optarg}; 84 break; 85 default: 86 /* skip garbage. */ 87 continue; 88 } 89 } 90 91 auto modeControlBus = sdbusplus::bus::new_system(); 92 static constexpr auto modeRoot = "/xyz/openbmc_project/settings/fanctrl"; 93 // Create a manager for the ModeBus because we own it. 94 sdbusplus::server::manager::manager(modeControlBus, modeRoot); 95 96 #if CONFIGURE_DBUS 97 { 98 dbus_configuration::init(modeControlBus); 99 } 100 #else 101 const std::string& path = 102 (configPath.length() > 0) ? configPath : jsonConfigurationPath; 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 try 109 { 110 auto jsonData = parseValidateJson(path); 111 sensorConfig = buildSensorsFromJson(jsonData); 112 std::tie(zoneConfig, zoneDetailsConfig) = buildPIDsFromJson(jsonData); 113 } 114 catch (const std::exception& e) 115 { 116 std::cerr << "Failed during building: " << e.what() << "\n"; 117 exit(EXIT_FAILURE); /* fatal error. */ 118 } 119 #endif 120 121 SensorManager mgmr = buildSensors(sensorConfig); 122 std::unordered_map<int64_t, std::unique_ptr<PIDZone>> zones = 123 buildZones(zoneConfig, zoneDetailsConfig, mgmr, modeControlBus); 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 (const 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