etherint.hh revision 4419 
15222Sksewell@umich.edu/*
25268Sksewell@umich.edu * Copyright (c) 2002-2005 The Regents of The University of Michigan
35254Sksewell@umich.edu * All rights reserved.
45222Sksewell@umich.edu *
55222Sksewell@umich.edu * Redistribution and use in source and binary forms, with or without
65222Sksewell@umich.edu * modification, are permitted provided that the following conditions are
75222Sksewell@umich.edu * met: redistributions of source code must retain the above copyright
85222Sksewell@umich.edu * notice, this list of conditions and the following disclaimer;
95222Sksewell@umich.edu * redistributions in binary form must reproduce the above copyright
105222Sksewell@umich.edu * notice, this list of conditions and the following disclaimer in the
115222Sksewell@umich.edu * documentation and/or other materials provided with the distribution;
125222Sksewell@umich.edu * neither the name of the copyright holders nor the names of its
135222Sksewell@umich.edu * contributors may be used to endorse or promote products derived from
145222Sksewell@umich.edu * this software without specific prior written permission.
155222Sksewell@umich.edu *
165222Sksewell@umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
175222Sksewell@umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
185222Sksewell@umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
195222Sksewell@umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
205222Sksewell@umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
215222Sksewell@umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
225222Sksewell@umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
235222Sksewell@umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
245222Sksewell@umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
255222Sksewell@umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
265222Sksewell@umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
275222Sksewell@umich.edu *
285222Sksewell@umich.edu * Authors: Nathan Binkert
295268Sksewell@umich.edu */
305268Sksewell@umich.edu
315254Sksewell@umich.edu/* @file
325222Sksewell@umich.edu * Class representing the actual interface between two ethernet
335222Sksewell@umich.edu * components.
345222Sksewell@umich.edu */
355222Sksewell@umich.edu
365222Sksewell@umich.edu#ifndef __DEV_ETHERINT_HH__
375222Sksewell@umich.edu#define __DEV_ETHERINT_HH__
385222Sksewell@umich.edu
395222Sksewell@umich.edu#include <string>
408758Sgblack@eecs.umich.edu
415222Sksewell@umich.edu#include "dev/etherpkt.hh"
425254Sksewell@umich.edu#include "sim/sim_object.hh"
435222Sksewell@umich.edu
445222Sksewell@umich.edu/*
455222Sksewell@umich.edu * Class representing the actual interface between two ethernet
465222Sksewell@umich.edu * components.  These components are intended to attach to another
475222Sksewell@umich.edu * ethernet interface on one side and whatever device on the other.
485222Sksewell@umich.edu */
498758Sgblack@eecs.umich.educlass EtherInt : public SimObject
508758Sgblack@eecs.umich.edu{
515222Sksewell@umich.edu  protected:
525222Sksewell@umich.edu    EtherInt *peer;
535222Sksewell@umich.edu
545222Sksewell@umich.edu  public:
555222Sksewell@umich.edu    EtherInt(const std::string &name) : SimObject(name), peer(NULL) {}
568758Sgblack@eecs.umich.edu    virtual ~EtherInt() {}
575222Sksewell@umich.edu
585222Sksewell@umich.edu    void setPeer(EtherInt *p);
59
60    void recvDone() { peer->sendDone(); }
61    virtual void sendDone() = 0;
62
63    bool sendPacket(EthPacketPtr packet)
64    { return peer ? peer->recvPacket(packet) : true; }
65    virtual bool recvPacket(EthPacketPtr packet) = 0;
66
67    bool askBusy() {return peer->isBusy(); }
68    virtual bool isBusy() { return false; }
69};
70
71#endif // __DEV_ETHERINT_HH__
72