xref: /gem5/ext/dsent/model/timing_graph/ElectricalDriver.cc

#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