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/**
* Copyright © 2017 IBM Corporation
*
* 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 <string>
#include "fan.hpp"
#include "sdbusplus.hpp"
namespace phosphor
{
namespace fan
{
namespace control
{
// For throwing exception
using namespace phosphor::logging;
constexpr auto FAN_SENSOR_PATH = "/xyz/openbmc_project/sensors/fan_tach/";
constexpr auto FAN_TARGET_PROPERTY = "Target";
Fan::Fan(sdbusplus::bus::bus& bus, const FanDefinition& def):
_bus(bus),
_name(std::get<fanNamePos>(def)),
_interface(std::get<targetInterfacePos>(def))
{
std::string path;
auto sensors = std::get<sensorListPos>(def);
for (auto& s : sensors)
{
path = FAN_SENSOR_PATH + s;
auto service = util::SDBusPlus::getService(
bus,
path,
_interface);
_sensors[path] = service;
}
// All sensors associated with this fan are set to the same target speed,
// so only need to read target property from one.
if (!path.empty())
{
// Use getProperty with service lookup since each target sensor
// path given could have different services providing them
_targetSpeed = util::SDBusPlus::getProperty<uint64_t>(
bus,
path,
_interface,
FAN_TARGET_PROPERTY);
}
}
void Fan::setSpeed(uint64_t speed)
{
for (auto& sensor : _sensors)
{
auto value = speed;
try
{
util::SDBusPlus::setProperty<uint64_t>(
_bus,
sensor.second,
sensor.first,
_interface,
FAN_TARGET_PROPERTY,
std::move(value));
}
catch (const sdbusplus::exception::SdBusError&)
{
throw util::DBusPropertyError{
"DBus set property failed",
sensor.second,
sensor.first,
_interface,
FAN_TARGET_PROPERTY};
}
}
_targetSpeed = speed;
}
}
}
}
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