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 configuration converted sensor list. */ 52 std::map<std::string, struct conf::SensorConfig> sensorConfig = {}; 53 /* The configuration converted PID list. */ 54 std::map<int64_t, conf::PIDConf> zoneConfig = {}; 55 /* The configuration 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 std::string configPath = ""; 61 62 /* async io context for operation */ 63 boost::asio::io_context io; 64 65 /* buses for system control */ 66 static sdbusplus::asio::connection modeControlBus(io); 67 static sdbusplus::asio::connection 68 hostBus(io, sdbusplus::bus::new_system().release()); 69 static sdbusplus::asio::connection 70 passiveBus(io, sdbusplus::bus::new_system().release()); 71 72 void restartControlLoops() 73 { 74 static SensorManager mgmr; 75 static std::unordered_map<int64_t, std::unique_ptr<PIDZone>> zones; 76 static std::list<boost::asio::steady_timer> timers; 77 78 timers.clear(); 79 80 #if CONFIGURE_DBUS 81 82 static boost::asio::steady_timer reloadTimer(io); 83 if (!dbus_configuration::init(modeControlBus, reloadTimer)) 84 { 85 return; // configuration not ready 86 } 87 88 #else 89 const std::string& path = 90 (configPath.length() > 0) ? configPath : jsonConfigurationPath; 91 92 /* 93 * When building the sensors, if any of the dbus passive ones aren't on the 94 * bus, it'll fail immediately. 95 */ 96 try 97 { 98 auto jsonData = parseValidateJson(path); 99 sensorConfig = buildSensorsFromJson(jsonData); 100 std::tie(zoneConfig, zoneDetailsConfig) = buildPIDsFromJson(jsonData); 101 } 102 catch (const std::exception& e) 103 { 104 std::cerr << "Failed during building: " << e.what() << "\n"; 105 exit(EXIT_FAILURE); /* fatal error. */ 106 } 107 #endif 108 109 mgmr = buildSensors(sensorConfig, passiveBus, hostBus); 110 zones = buildZones(zoneConfig, zoneDetailsConfig, mgmr, modeControlBus); 111 112 if (0 == zones.size()) 113 { 114 std::cerr << "No zones defined, exiting.\n"; 115 std::exit(EXIT_FAILURE); 116 } 117 118 for (const auto& i : zones) 119 { 120 auto& timer = timers.emplace_back(io); 121 std::cerr << "pushing zone " << i.first << "\n"; 122 pidControlLoop(i.second.get(), timer); 123 } 124 } 125 126 int main(int argc, char* argv[]) 127 { 128 loggingPath = ""; 129 loggingEnabled = false; 130 tuningEnabled = false; 131 132 CLI::App app{"OpenBMC Fan Control Daemon"}; 133 134 app.add_option("-c,--conf", configPath, 135 "Optional parameter to specify configuration at run-time") 136 ->check(CLI::ExistingFile); 137 app.add_option("-l,--log", loggingPath, 138 "Optional parameter to specify logging folder") 139 ->check(CLI::ExistingDirectory); 140 app.add_flag("-t,--tuning", tuningEnabled, "Enable or disable tuning"); 141 142 CLI11_PARSE(app, argc, argv); 143 144 loggingEnabled = (!loggingPath.empty()); 145 146 static constexpr auto modeRoot = "/xyz/openbmc_project/settings/fanctrl"; 147 // Create a manager for the ModeBus because we own it. 148 sdbusplus::server::manager::manager( 149 static_cast<sdbusplus::bus::bus&>(modeControlBus), modeRoot); 150 hostBus.request_name("xyz.openbmc_project.Hwmon.external"); 151 modeControlBus.request_name("xyz.openbmc_project.State.FanCtrl"); 152 153 /* 154 * All sensors are managed by one manager, but each zone has a pointer to 155 * it. 156 */ 157 158 restartControlLoops(); 159 160 io.run(); 161 return 0; 162 } 163