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/tuning.hpp" 26 #include "pid/zone.hpp" 27 #include "sensors/builder.hpp" 28 #include "sensors/buildjson.hpp" 29 #include "sensors/manager.hpp" 30 #include "threads/busthread.hpp" 31 #include "util.hpp" 32 33 #include <CLI/CLI.hpp> 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 conf::SensorConfig> sensorConfig = {}; 50 /* The YAML converted PID list. */ 51 std::map<int64_t, conf::PIDConf> zoneConfig = {}; 52 /* The YAML converted Zone configuration. */ 53 std::map<int64_t, struct conf::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 tuningLoggingPath = ""; 63 64 CLI::App app{"OpenBMC Fan Control Daemon"}; 65 66 app.add_option("-c,--conf", configPath, 67 "Optional parameter to specify configuration at run-time") 68 ->check(CLI::ExistingFile); 69 app.add_option("-t,--tuning", tuningLoggingPath, 70 "Optional parameter to specify tuning logging path, and " 71 "enable tuning") 72 ->check(CLI::ExistingFile); 73 74 CLI11_PARSE(app, argc, argv); 75 76 tuningLoggingEnabled = (tuningLoggingPath.length() > 0); 77 78 auto modeControlBus = sdbusplus::bus::new_system(); 79 static constexpr auto modeRoot = "/xyz/openbmc_project/settings/fanctrl"; 80 // Create a manager for the ModeBus because we own it. 81 sdbusplus::server::manager::manager(modeControlBus, modeRoot); 82 83 #if CONFIGURE_DBUS 84 { 85 dbus_configuration::init(modeControlBus); 86 } 87 #else 88 const std::string& path = 89 (configPath.length() > 0) ? configPath : jsonConfigurationPath; 90 91 /* 92 * When building the sensors, if any of the dbus passive ones aren't on the 93 * bus, it'll fail immediately. 94 */ 95 try 96 { 97 auto jsonData = parseValidateJson(path); 98 sensorConfig = buildSensorsFromJson(jsonData); 99 std::tie(zoneConfig, zoneDetailsConfig) = buildPIDsFromJson(jsonData); 100 } 101 catch (const std::exception& e) 102 { 103 std::cerr << "Failed during building: " << e.what() << "\n"; 104 exit(EXIT_FAILURE); /* fatal error. */ 105 } 106 #endif 107 108 SensorManager mgmr = buildSensors(sensorConfig); 109 std::unordered_map<int64_t, std::unique_ptr<PIDZone>> zones = 110 buildZones(zoneConfig, zoneDetailsConfig, mgmr, modeControlBus); 111 112 if (0 == zones.size()) 113 { 114 std::cerr << "No zones defined, exiting.\n"; 115 return rc; 116 } 117 118 /* 119 * All sensors are managed by one manager, but each zone has a pointer to 120 * it. 121 */ 122 123 auto& hostSensorBus = mgmr.getHostBus(); 124 auto& passiveListeningBus = mgmr.getPassiveBus(); 125 126 std::cerr << "Starting threads\n"; 127 128 /* TODO(venture): Ask SensorManager if we have any passive sensors. */ 129 struct ThreadParams p = {std::ref(passiveListeningBus), ""}; 130 std::thread l(busThread, std::ref(p)); 131 132 /* TODO(venture): Ask SensorManager if we have any host sensors. */ 133 static constexpr auto hostBus = "xyz.openbmc_project.Hwmon.external"; 134 struct ThreadParams e = {std::ref(hostSensorBus), hostBus}; 135 std::thread te(busThread, std::ref(e)); 136 137 static constexpr auto modeBus = "xyz.openbmc_project.State.FanCtrl"; 138 struct ThreadParams m = {std::ref(modeControlBus), modeBus}; 139 std::thread tm(busThread, std::ref(m)); 140 141 std::vector<std::thread> zoneThreads; 142 143 /* TODO(venture): This was designed to have one thread per zone, but really 144 * it could have one thread for all the zones and iterate through each 145 * sequentially as it goes -- and it'd probably be fast enough to do that, 146 * however, a system isn't likely going to have more than a couple zones. 147 * If it only has a couple zones, then this is fine. 148 */ 149 for (const auto& i : zones) 150 { 151 std::cerr << "pushing zone" << std::endl; 152 zoneThreads.push_back(std::thread(pidControlThread, i.second.get())); 153 } 154 155 l.join(); 156 te.join(); 157 tm.join(); 158 for (auto& t : zoneThreads) 159 { 160 t.join(); 161 } 162 163 return rc; 164 } 165