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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 <phosphor-logging/log.hpp>
#include <phosphor-logging/elog.hpp>
#include <phosphor-logging/elog-errors.hpp>
#include <xyz/openbmc_project/Common/error.hpp>
#include "zone.hpp"
#include "utility.hpp"
namespace phosphor
{
namespace fan
{
namespace control
{
using namespace phosphor::logging;
using InternalFailure = sdbusplus::xyz::openbmc_project::Common::
Error::InternalFailure;
Zone::Zone(Mode mode,
sdbusplus::bus::bus& bus,
const ZoneDefinition& def) :
_bus(bus),
_fullSpeed(std::get<fullSpeedPos>(def)),
_zoneNum(std::get<zoneNumPos>(def)),
_defFloorSpeed(std::get<floorSpeedPos>(def)),
_defCeilingSpeed(std::get<fullSpeedPos>(def))
{
auto& fanDefs = std::get<fanListPos>(def);
for (auto& def : fanDefs)
{
_fans.emplace_back(std::make_unique<Fan>(bus, def));
}
// Do not enable set speed events when in init mode
if (mode != Mode::init)
{
// Setup signal trigger for set speed events
for (auto& event : std::get<setSpeedEventsPos>(def))
{
// Get the current value for each property
for (auto& entry : std::get<groupPos>(event))
{
try
{
PropertyVariantType property;
getProperty(_bus,
entry.first,
std::get<intfPos>(entry.second),
std::get<propPos>(entry.second),
property);
setPropertyValue(entry.first.c_str(),
std::get<intfPos>(entry.second).c_str(),
std::get<propPos>(entry.second).c_str(),
property);
}
catch (const std::exception& e)
{
log<level::ERR>(e.what());
}
}
// Setup signal matches for property change events
for (auto& prop : std::get<propChangeListPos>(event))
{
_signalEvents.emplace_back(
std::make_unique<EventData>(
EventData
{
std::get<groupPos>(event),
std::get<handlerObjPos>(prop),
std::get<actionPos>(event)
}));
_matches.emplace_back(
bus,
std::get<signaturePos>(prop).c_str(),
std::bind(std::mem_fn(&Zone::handleEvent),
this,
std::placeholders::_1,
_signalEvents.back().get()));
}
// Run action function for initial event state
std::get<actionPos>(event)(*this,
std::get<groupPos>(event));
}
}
}
void Zone::setSpeed(uint64_t speed)
{
for (auto& fan : _fans)
{
//TODO openbmc/openbmc#1626 Move to control algorithm function
if (speed < _floorSpeed)
{
speed = _floorSpeed;
}
fan->setSpeed(speed);
}
}
void Zone::setActiveAllow(const Group* group, bool isActiveAllow)
{
_active[group] = isActiveAllow;
if (!isActiveAllow)
{
_isActive = false;
}
else
{
// Check all entries are set to allow control active
auto actPred = [](auto const& entry) {return entry.second;};
_isActive = std::all_of(_active.begin(),
_active.end(),
actPred);
}
}
void Zone::requestSpeedIncrease(uint64_t targetDelta)
{
// Only increase speed when delta is higher than
// the current increase delta for the zone and currently under ceiling
if (targetDelta > _incSpeedDelta &&
_targetSpeed < _ceilingSpeed)
{
_targetSpeed = (targetDelta - _incSpeedDelta) + _targetSpeed;
_incSpeedDelta = targetDelta;
//TODO openbmc/openbmc#1625 Cancel current timer countdown
//TODO Floor speed above target, update target to floor speed
if (_targetSpeed < _floorSpeed)
{
_targetSpeed = _floorSpeed;
}
// Target speed can not go above a defined ceiling speed
if (_targetSpeed > _ceilingSpeed)
{
_targetSpeed = _ceilingSpeed;
}
setSpeed(_targetSpeed);
//TODO openbmc/openbmc#1625 Start timer countdown for fan speed increase
}
//TODO openbmc/openbmc#1625 Clear increase delta when timer expires
_incSpeedDelta = 0;
}
void Zone::getProperty(sdbusplus::bus::bus& bus,
const std::string& path,
const std::string& iface,
const std::string& prop,
PropertyVariantType& value)
{
auto serv = phosphor::fan::util::getService(path, iface, bus);
auto hostCall = bus.new_method_call(serv.c_str(),
path.c_str(),
"org.freedesktop.DBus.Properties",
"Get");
hostCall.append(iface);
hostCall.append(prop);
auto hostResponseMsg = bus.call(hostCall);
if (hostResponseMsg.is_method_error())
{
log<level::ERR>("Error in host call response for retrieving property");
elog<InternalFailure>();
}
hostResponseMsg.read(value);
}
void Zone::handleEvent(sdbusplus::message::message& msg,
const EventData* eventData)
{
// Handle the callback
std::get<eventHandlerPos>(*eventData)(_bus, msg, *this);
// Perform the action
std::get<eventActionPos>(*eventData)(*this,
std::get<eventGroupPos>(*eventData));
}
}
}
}
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