blob: 4ba183770f2219bb5984ceb5e44d7c4695aff15c [file] [log] [blame]
/**
* 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 <iostream>
#include <map>
#include <string>
/* Configuration. */
#include "conf.hpp"
#include "dbus/dbuspassive.hpp"
#include "dbus/dbuswrite.hpp"
#include "errors/exception.hpp"
#include "interfaces.hpp"
#include "notimpl/readonly.hpp"
#include "notimpl/writeonly.hpp"
#include "sensors/builder.hpp"
#include "sensors/host.hpp"
#include "sensors/manager.hpp"
#include "sensors/pluggable.hpp"
#include "sysfs/sysfsread.hpp"
#include "sysfs/sysfswrite.hpp"
#include "util.hpp"
static constexpr bool deferSignals = true;
static DbusHelper helper;
SensorManager
buildSensors(const std::map<std::string, struct SensorConfig>& config)
{
SensorManager mgmr;
auto& hostSensorBus = mgmr.getHostBus();
auto& passiveListeningBus = mgmr.getPassiveBus();
for (const auto& it : config)
{
std::unique_ptr<ReadInterface> ri;
std::unique_ptr<WriteInterface> wi;
std::string name = it.first;
const struct SensorConfig* info = &it.second;
std::cerr << "Sensor: " << name << " " << info->type << " ";
std::cerr << info->readPath << " " << info->writePath << "\n";
IOInterfaceType rtype = getReadInterfaceType(info->readPath);
IOInterfaceType wtype = getWriteInterfaceType(info->writePath);
// fan sensors can be ready any way and written others.
// fan sensors are the only sensors this is designed to write.
// Nothing here should be write-only, although, in theory a fan could
// be. I'm just not sure how that would fit together.
// TODO(venture): It should check with the ObjectMapper to check if
// that sensor exists on the Dbus.
switch (rtype)
{
case IOInterfaceType::DBUSPASSIVE:
ri = DbusPassive::createDbusPassive(passiveListeningBus,
info->type, name, &helper);
if (ri == nullptr)
{
throw SensorBuildException(
"Failed to create dbus passive sensor: " + name +
" of type: " + info->type);
}
break;
case IOInterfaceType::EXTERNAL:
// These are a special case for read-only.
break;
case IOInterfaceType::SYSFS:
ri = std::make_unique<SysFsRead>(info->readPath);
break;
default:
ri = std::make_unique<WriteOnly>();
break;
}
if (info->type == "fan")
{
switch (wtype)
{
case IOInterfaceType::SYSFS:
if (info->max > 0)
{
wi = std::make_unique<SysFsWritePercent>(
info->writePath, info->min, info->max);
}
else
{
wi = std::make_unique<SysFsWrite>(info->writePath,
info->min, info->max);
}
break;
case IOInterfaceType::DBUSACTIVE:
if (info->max > 0)
{
wi = DbusWritePercent::createDbusWrite(
info->writePath, info->min, info->max, helper);
}
else
{
wi = DbusWrite::createDbusWrite(
info->writePath, info->min, info->max, helper);
}
if (wi == nullptr)
{
throw SensorBuildException(
"Unable to create write dbus interface for path: " +
info->writePath);
}
break;
default:
wi = std::make_unique<ReadOnlyNoExcept>();
break;
}
auto sensor = std::make_unique<PluggableSensor>(
name, info->timeout, std::move(ri), std::move(wi));
mgmr.addSensor(info->type, name, std::move(sensor));
}
else if (info->type == "temp" || info->type == "margin")
{
// These sensors are read-only, but only for this application
// which only writes to fan sensors.
std::cerr << info->type << " readPath: " << info->readPath << "\n";
if (IOInterfaceType::EXTERNAL == rtype)
{
std::cerr << "Creating HostSensor: " << name
<< " path: " << info->readPath << "\n";
/*
* The reason we handle this as a HostSensor is because it's
* not quite pluggable; but maybe it could be.
*/
auto sensor = HostSensor::createTemp(
name, info->timeout, hostSensorBus, info->readPath.c_str(),
deferSignals);
mgmr.addSensor(info->type, name, std::move(sensor));
}
else
{
wi = std::make_unique<ReadOnlyNoExcept>();
auto sensor = std::make_unique<PluggableSensor>(
name, info->timeout, std::move(ri), std::move(wi));
mgmr.addSensor(info->type, name, std::move(sensor));
}
}
}
return mgmr;
}