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/**
* Copyright 2017 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "config.h"
#include "build/buildjson.hpp"
#include "conf.hpp"
#include "interfaces.hpp"
#include "pid/builder.hpp"
#include "pid/buildjson.hpp"
#include "pid/pidloop.hpp"
#include "pid/tuning.hpp"
#include "pid/zone.hpp"
#include "sensors/builder.hpp"
#include "sensors/buildjson.hpp"
#include "sensors/manager.hpp"
#include "util.hpp"
#include <CLI/CLI.hpp>
#include <boost/asio/io_context.hpp>
#include <boost/asio/steady_timer.hpp>
#include <chrono>
#include <iostream>
#include <list>
#include <map>
#include <memory>
#include <sdbusplus/asio/connection.hpp>
#include <sdbusplus/bus.hpp>
#include <thread>
#include <unordered_map>
#include <utility>
#include <vector>
#if CONFIGURE_DBUS
#include "dbus/dbusconfiguration.hpp"
#endif
/* The configuration converted sensor list. */
std::map<std::string, struct conf::SensorConfig> sensorConfig = {};
/* The configuration converted PID list. */
std::map<int64_t, conf::PIDConf> zoneConfig = {};
/* The configuration converted Zone configuration. */
std::map<int64_t, struct conf::ZoneConfig> zoneDetailsConfig = {};
/** the swampd daemon will check for the existence of this file. */
constexpr auto jsonConfigurationPath = "/usr/share/swampd/config.json";
std::string configPath = "";
/* async io context for operation */
boost::asio::io_context io;
/* buses for system control */
static sdbusplus::asio::connection modeControlBus(io);
static sdbusplus::asio::connection
hostBus(io, sdbusplus::bus::new_system().release());
static sdbusplus::asio::connection
passiveBus(io, sdbusplus::bus::new_system().release());
void restartControlLoops()
{
static SensorManager mgmr;
static std::unordered_map<int64_t, std::unique_ptr<PIDZone>> zones;
static std::list<boost::asio::steady_timer> timers;
timers.clear();
#if CONFIGURE_DBUS
static boost::asio::steady_timer reloadTimer(io);
if (!dbus_configuration::init(modeControlBus, reloadTimer))
{
return; // configuration not ready
}
#else
const std::string& path =
(configPath.length() > 0) ? configPath : jsonConfigurationPath;
/*
* When building the sensors, if any of the dbus passive ones aren't on the
* bus, it'll fail immediately.
*/
try
{
auto jsonData = parseValidateJson(path);
sensorConfig = buildSensorsFromJson(jsonData);
std::tie(zoneConfig, zoneDetailsConfig) = buildPIDsFromJson(jsonData);
}
catch (const std::exception& e)
{
std::cerr << "Failed during building: " << e.what() << "\n";
exit(EXIT_FAILURE); /* fatal error. */
}
#endif
mgmr = buildSensors(sensorConfig, passiveBus, hostBus);
zones = buildZones(zoneConfig, zoneDetailsConfig, mgmr, modeControlBus);
if (0 == zones.size())
{
std::cerr << "No zones defined, exiting.\n";
std::exit(EXIT_FAILURE);
}
for (const auto& i : zones)
{
auto& timer = timers.emplace_back(io);
std::cerr << "pushing zone " << i.first << "\n";
pidControlLoop(i.second.get(), timer);
}
}
int main(int argc, char* argv[])
{
loggingPath = "";
loggingEnabled = false;
tuningEnabled = false;
CLI::App app{"OpenBMC Fan Control Daemon"};
app.add_option("-c,--conf", configPath,
"Optional parameter to specify configuration at run-time")
->check(CLI::ExistingFile);
app.add_option("-l,--log", loggingPath,
"Optional parameter to specify logging folder")
->check(CLI::ExistingDirectory);
app.add_flag("-t,--tuning", tuningEnabled, "Enable or disable tuning");
CLI11_PARSE(app, argc, argv);
loggingEnabled = (!loggingPath.empty());
static constexpr auto modeRoot = "/xyz/openbmc_project/settings/fanctrl";
// Create a manager for the ModeBus because we own it.
sdbusplus::server::manager::manager(
static_cast<sdbusplus::bus::bus&>(modeControlBus), modeRoot);
hostBus.request_name("xyz.openbmc_project.Hwmon.external");
modeControlBus.request_name("xyz.openbmc_project.State.FanCtrl");
/*
* All sensors are managed by one manager, but each zone has a pointer to
* it.
*/
restartControlLoops();
io.run();
return 0;
}
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