ElectricalDriver.cc revision 10447
110447Snilay@cs.wisc.edu 210447Snilay@cs.wisc.edu#include "model/timing_graph/ElectricalDriver.h" 310447Snilay@cs.wisc.edu#include "model/timing_graph/ElectricalNet.h" 410447Snilay@cs.wisc.edu#include "model/ElectricalModel.h" 510447Snilay@cs.wisc.edu 610447Snilay@cs.wisc.edunamespace DSENT 710447Snilay@cs.wisc.edu{ 810447Snilay@cs.wisc.edu ElectricalDriver::ElectricalDriver(const String& instance_name_, ElectricalModel* model_, bool sizable_) 910447Snilay@cs.wisc.edu : ElectricalTimingNode(instance_name_, model_), m_output_res_(0.0), m_sizable_(sizable_) 1010447Snilay@cs.wisc.edu { 1110447Snilay@cs.wisc.edu 1210447Snilay@cs.wisc.edu } 1310447Snilay@cs.wisc.edu 1410447Snilay@cs.wisc.edu ElectricalDriver::~ElectricalDriver() 1510447Snilay@cs.wisc.edu { 1610447Snilay@cs.wisc.edu 1710447Snilay@cs.wisc.edu } 1810447Snilay@cs.wisc.edu 1910447Snilay@cs.wisc.edu void ElectricalDriver::setOutputRes(double output_res_) 2010447Snilay@cs.wisc.edu { 2110447Snilay@cs.wisc.edu m_output_res_ = output_res_; 2210447Snilay@cs.wisc.edu return; 2310447Snilay@cs.wisc.edu } 2410447Snilay@cs.wisc.edu 2510447Snilay@cs.wisc.edu double ElectricalDriver::getOutputRes() const 2610447Snilay@cs.wisc.edu { 2710447Snilay@cs.wisc.edu return m_output_res_; 2810447Snilay@cs.wisc.edu } 2910447Snilay@cs.wisc.edu 3010447Snilay@cs.wisc.edu double ElectricalDriver::calculateDelay() const 3110447Snilay@cs.wisc.edu { 3210447Snilay@cs.wisc.edu return 0.693 * m_output_res_ * getTotalDownstreamCap(); 3310447Snilay@cs.wisc.edu } 3410447Snilay@cs.wisc.edu 3510447Snilay@cs.wisc.edu double ElectricalDriver::calculateTransition() const 3610447Snilay@cs.wisc.edu { 3710447Snilay@cs.wisc.edu return 1.386 * getMaxUpstreamRes() * getTotalDownstreamCap(); 3810447Snilay@cs.wisc.edu } 3910447Snilay@cs.wisc.edu 4010447Snilay@cs.wisc.edu double ElectricalDriver::getMaxUpstreamRes() const 4110447Snilay@cs.wisc.edu { 4210447Snilay@cs.wisc.edu return m_output_res_; 4310447Snilay@cs.wisc.edu } 4410447Snilay@cs.wisc.edu 4510447Snilay@cs.wisc.edu bool ElectricalDriver::isSizable() const 4610447Snilay@cs.wisc.edu { 4710447Snilay@cs.wisc.edu return m_sizable_; 4810447Snilay@cs.wisc.edu } 4910447Snilay@cs.wisc.edu 5010447Snilay@cs.wisc.edu bool ElectricalDriver::hasMaxDrivingStrength() const 5110447Snilay@cs.wisc.edu { 5210447Snilay@cs.wisc.edu if (!isSizable()) 5310447Snilay@cs.wisc.edu { 5410447Snilay@cs.wisc.edu return true; 5510447Snilay@cs.wisc.edu } 5610447Snilay@cs.wisc.edu return (getModel() == NULL) || (getModel()->hasMaxDrivingStrength()); 5710447Snilay@cs.wisc.edu } 5810447Snilay@cs.wisc.edu 5910447Snilay@cs.wisc.edu bool ElectricalDriver::hasMinDrivingStrength() const 6010447Snilay@cs.wisc.edu { 6110447Snilay@cs.wisc.edu if (!isSizable()) 6210447Snilay@cs.wisc.edu { 6310447Snilay@cs.wisc.edu return true; 6410447Snilay@cs.wisc.edu } 6510447Snilay@cs.wisc.edu return (getModel() == NULL) || (getModel()->hasMinDrivingStrength()); 6610447Snilay@cs.wisc.edu } 6710447Snilay@cs.wisc.edu 6810447Snilay@cs.wisc.edu void ElectricalDriver::increaseDrivingStrength() 6910447Snilay@cs.wisc.edu { 7010447Snilay@cs.wisc.edu ASSERT(isSizable(), "[Error] " + getInstanceName() + 7110447Snilay@cs.wisc.edu " -> Attempted to size up unsizable driver!"); 7210447Snilay@cs.wisc.edu if(!hasMaxDrivingStrength()) 7310447Snilay@cs.wisc.edu { 7410447Snilay@cs.wisc.edu getModel()->increaseDrivingStrength(); 7510447Snilay@cs.wisc.edu } 7610447Snilay@cs.wisc.edu return; 7710447Snilay@cs.wisc.edu } 7810447Snilay@cs.wisc.edu 7910447Snilay@cs.wisc.edu void ElectricalDriver::decreaseDrivingStrength() 8010447Snilay@cs.wisc.edu { 8110447Snilay@cs.wisc.edu ASSERT(isSizable(), "[Error] " + getInstanceName() + 8210447Snilay@cs.wisc.edu " -> Attempted to size down unsizable driver!"); 8310447Snilay@cs.wisc.edu if(!hasMinDrivingStrength()) 8410447Snilay@cs.wisc.edu { 8510447Snilay@cs.wisc.edu getModel()->decreaseDrivingStrength(); 8610447Snilay@cs.wisc.edu } 8710447Snilay@cs.wisc.edu return; 8810447Snilay@cs.wisc.edu } 8910447Snilay@cs.wisc.edu 9010447Snilay@cs.wisc.edu bool ElectricalDriver::isDriver() const 9110447Snilay@cs.wisc.edu { 9210447Snilay@cs.wisc.edu return true; 9310447Snilay@cs.wisc.edu } 9410447Snilay@cs.wisc.edu} // namespace DSENT 9510447Snilay@cs.wisc.edu 96