intpin.cc

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/*
 * Copyright 2019 Google, Inc.
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 * notice, this list of conditions and the following disclaimer in the
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 * neither the name of the copyright holders nor the names of its
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 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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#include "dev/intpin.hh"
 
#include "base/logging.hh"
 
void
IntSinkPinBase::bind(Port &peer)
{
    source = dynamic_cast<IntSourcePinBase *>(&peer);
    fatal_if(!source, "Attempt to bind interrupt sink pin %s to "
            "incompatible port %s.", name(), peer.name());
    Port::bind(peer);
}
 
void
IntSinkPinBase::unbind()
{
    source = nullptr;
    Port::unbind();
}
 
void
IntSourcePinBase::bind(Port &peer)
{
    sink = dynamic_cast<IntSinkPinBase *>(&peer);
    fatal_if(!sink, "Attempt to bind interrupt source pin %s to "
            "incompatible port %s.", name(), peer.name());
    Port::bind(peer);
 
    if (_state)
        raise();
    else
        lower();
}
 
void
IntSourcePinBase::unbind()
{
    sink = nullptr;
    Port::unbind();
}