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/* Copyright (c) 2012 Massachusetts Institute of Technology
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "model/timing_graph/ElectricalDriver.h"
#include "model/timing_graph/ElectricalNet.h"
#include "model/ElectricalModel.h"
namespace DSENT
{
ElectricalDriver::ElectricalDriver(const String& instance_name_, ElectricalModel* model_, bool sizable_)
: ElectricalTimingNode(instance_name_, model_), m_output_res_(0.0), m_sizable_(sizable_)
{
}
ElectricalDriver::~ElectricalDriver()
{
}
void ElectricalDriver::setOutputRes(double output_res_)
{
m_output_res_ = output_res_;
return;
}
double ElectricalDriver::getOutputRes() const
{
return m_output_res_;
}
double ElectricalDriver::calculateDelay() const
{
return 0.693 * m_output_res_ * getTotalDownstreamCap();
}
double ElectricalDriver::calculateTransition() const
{
return 1.386 * getMaxUpstreamRes() * getTotalDownstreamCap();
}
double ElectricalDriver::getMaxUpstreamRes() const
{
return m_output_res_;
}
bool ElectricalDriver::isSizable() const
{
return m_sizable_;
}
bool ElectricalDriver::hasMaxDrivingStrength() const
{
if (!isSizable())
{
return true;
}
return (getModel() == NULL) || (getModel()->hasMaxDrivingStrength());
}
bool ElectricalDriver::hasMinDrivingStrength() const
{
if (!isSizable())
{
return true;
}
return (getModel() == NULL) || (getModel()->hasMinDrivingStrength());
}
void ElectricalDriver::increaseDrivingStrength()
{
ASSERT(isSizable(), "[Error] " + getInstanceName() +
" -> Attempted to size up unsizable driver!");
if(!hasMaxDrivingStrength())
{
getModel()->increaseDrivingStrength();
}
return;
}
void ElectricalDriver::decreaseDrivingStrength()
{
ASSERT(isSizable(), "[Error] " + getInstanceName() +
" -> Attempted to size down unsizable driver!");
if(!hasMinDrivingStrength())
{
getModel()->decreaseDrivingStrength();
}
return;
}
bool ElectricalDriver::isDriver() const
{
return true;
}
} // namespace DSENT
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