119e127d71
The IntDev class is a base for anything that supports IntPins. IntPins allow devices to generically trigger interrupts on a particular pin of an IntDev device without having to know what the device is or what pin they're attached to.
80 lines
2.3 KiB
C++
80 lines
2.3 KiB
C++
/*
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* Copyright (c) 2008 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Gabe Black
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*/
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#ifndef __DEV_X86_INTDEV_HH__
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#define __DEV_X86_INTDEV_HH__
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#include <assert.h>
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#include "sim/sim_object.hh"
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#include "params/X86IntPin.hh"
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namespace X86ISA {
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class IntDev
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{
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public:
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virtual ~IntDev()
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{}
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virtual void
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signalInterrupt(int line) = 0;
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};
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class IntPin : public SimObject
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{
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protected:
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IntDev * device;
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int line;
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public:
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typedef X86IntPinParams Params;
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const Params *
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params() const
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{
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return dynamic_cast<const Params *>(_params);
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}
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IntPin(Params *p) : SimObject(p),
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device(dynamic_cast<IntDev *>(p->device)), line(p->line)
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{
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assert(device);
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}
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void
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signalInterrupt()
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{
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device->signalInterrupt(line);
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}
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};
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}; // namespace X86ISA
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#endif //__DEV_X86_INTDEV_HH__
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