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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/ElectricalDriverMultiplier.h"
#include "model/timing_graph/ElectricalLoad.h"
namespace DSENT
{
//-------------------------------------------------------------------------
// Electrical Net
//-------------------------------------------------------------------------
ElectricalDriverMultiplier::ElectricalDriverMultiplier(const String& instance_name_, ElectricalModel* model_)
: ElectricalTimingNode(instance_name_, model_)
{
}
ElectricalDriverMultiplier::~ElectricalDriverMultiplier()
{
}
double ElectricalDriverMultiplier::calculateDriveRes( double input_drive_res_) const
{
return input_drive_res_;
}
double ElectricalDriverMultiplier::calculateDelay() const
{
// This is just a model helper element, it does not contribute delay
return 0;
}
double ElectricalDriverMultiplier::calculateTransition() const
{
return getMaxUpstreamRes() * getTotalDownstreamCap();
}
double ElectricalDriverMultiplier::getTotalDownstreamCap() const
{
// Finds the max of the load caps (as opposed to summing)
double max_cap = 0;
vector<ElectricalTimingNode*>* downstream_nodes = ElectricalTimingNode::getDownstreamNodes();
for (unsigned int i = 0; i < downstream_nodes->size(); ++i)
{
max_cap = std::max(max_cap, downstream_nodes->at(i)->getTotalDownstreamCap());
}
return max_cap;
}
} // namespace DSENT
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