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/pidloop.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 "util.hpp" 31 32 #include <CLI/CLI.hpp> 33 #include <boost/asio/io_context.hpp> 34 #include <boost/asio/steady_timer.hpp> 35 #include <chrono> 36 #include <iostream> 37 #include <list> 38 #include <map> 39 #include <memory> 40 #include <sdbusplus/asio/connection.hpp> 41 #include <sdbusplus/bus.hpp> 42 #include <thread> 43 #include <unordered_map> 44 #include <utility> 45 #include <vector> 46 47 #if CONFIGURE_DBUS 48 #include "dbus/dbusconfiguration.hpp" 49 #endif 50 51 /* The YAML converted sensor list. */ 52 std::map<std::string, struct conf::SensorConfig> sensorConfig = {}; 53 /* The YAML converted PID list. */ 54 std::map<int64_t, conf::PIDConf> zoneConfig = {}; 55 /* The YAML converted Zone configuration. */ 56 std::map<int64_t, struct conf::ZoneConfig> zoneDetailsConfig = {}; 57 58 /** the swampd daemon will check for the existence of this file. */ 59 constexpr auto jsonConfigurationPath = "/usr/share/swampd/config.json"; 60 61 int main(int argc, char* argv[]) 62 { 63 int rc = 0; 64 std::string configPath = ""; 65 loggingPath = ""; 66 loggingEnabled = false; 67 tuningEnabled = false; 68 69 CLI::App app{"OpenBMC Fan Control Daemon"}; 70 71 app.add_option("-c,--conf", configPath, 72 "Optional parameter to specify configuration at run-time") 73 ->check(CLI::ExistingFile); 74 app.add_option("-l,--log", loggingPath, 75 "Optional parameter to specify logging folder") 76 ->check(CLI::ExistingDirectory); 77 app.add_flag("-t,--tuning", tuningEnabled, "Enable or disable tuning"); 78 79 loggingEnabled = (!loggingPath.empty()); 80 81 CLI11_PARSE(app, argc, argv); 82 83 auto modeControlBus = sdbusplus::bus::new_system(); 84 static constexpr auto modeRoot = "/xyz/openbmc_project/settings/fanctrl"; 85 // Create a manager for the ModeBus because we own it. 86 sdbusplus::server::manager::manager(modeControlBus, modeRoot); 87 88 #if CONFIGURE_DBUS 89 { 90 dbus_configuration::init(modeControlBus); 91 } 92 #else 93 const std::string& path = 94 (configPath.length() > 0) ? configPath : jsonConfigurationPath; 95 96 /* 97 * When building the sensors, if any of the dbus passive ones aren't on the 98 * bus, it'll fail immediately. 99 */ 100 try 101 { 102 auto jsonData = parseValidateJson(path); 103 sensorConfig = buildSensorsFromJson(jsonData); 104 std::tie(zoneConfig, zoneDetailsConfig) = buildPIDsFromJson(jsonData); 105 } 106 catch (const std::exception& e) 107 { 108 std::cerr << "Failed during building: " << e.what() << "\n"; 109 exit(EXIT_FAILURE); /* fatal error. */ 110 } 111 #endif 112 113 SensorManager mgmr = buildSensors(sensorConfig); 114 std::unordered_map<int64_t, std::unique_ptr<PIDZone>> zones = 115 buildZones(zoneConfig, zoneDetailsConfig, mgmr, modeControlBus); 116 117 if (0 == zones.size()) 118 { 119 std::cerr << "No zones defined, exiting.\n"; 120 return rc; 121 } 122 123 /* 124 * All sensors are managed by one manager, but each zone has a pointer to 125 * it. 126 */ 127 128 auto& hostSensorBus = mgmr.getHostBus(); 129 auto& passiveListeningBus = mgmr.getPassiveBus(); 130 131 boost::asio::io_context io; 132 sdbusplus::asio::connection passiveBus(io, passiveListeningBus.release()); 133 134 sdbusplus::asio::connection hostBus(io, hostSensorBus.release()); 135 hostBus.request_name("xyz.openbmc_project.Hwmon.external"); 136 137 sdbusplus::asio::connection modeBus(io, modeControlBus.release()); 138 modeBus.request_name("xyz.openbmc_project.State.FanCtrl"); 139 140 std::list<boost::asio::steady_timer> timers; 141 142 for (const auto& i : zones) 143 { 144 auto& timer = timers.emplace_back(io); 145 std::cerr << "pushing zone" << std::endl; 146 pidControlLoop(i.second.get(), timer); 147 } 148 149 io.run(); 150 return rc; 151 } 152