76 lines
2.7 KiB
C++
76 lines
2.7 KiB
C++
/*
|
|
* Copyright (c) 2002-2005 The Regents of The University of Michigan
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met: redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer;
|
|
* redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution;
|
|
* neither the name of the copyright holders nor the names of its
|
|
* contributors may be used to endorse or promote products derived from
|
|
* 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
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* Authors: Nathan Binkert
|
|
*/
|
|
|
|
/* @file
|
|
* Class representing the actual interface between two ethernet
|
|
* components.
|
|
*/
|
|
|
|
#ifndef __DEV_ETHERINT_HH__
|
|
#define __DEV_ETHERINT_HH__
|
|
|
|
#include <string>
|
|
|
|
#include "dev/etherpkt.hh"
|
|
|
|
/*
|
|
* Class representing the actual interface between two ethernet
|
|
* components. These components are intended to attach to another
|
|
* ethernet interface on one side and whatever device on the other.
|
|
*/
|
|
class EtherInt
|
|
{
|
|
protected:
|
|
mutable std::string portName;
|
|
EtherInt *peer;
|
|
|
|
public:
|
|
EtherInt(const std::string &name)
|
|
: portName(name), peer(NULL) {}
|
|
virtual ~EtherInt() {}
|
|
|
|
/** Return port name (for DPRINTF). */
|
|
const std::string &name() const { return portName; }
|
|
|
|
void setPeer(EtherInt *p);
|
|
EtherInt* getPeer() { return peer; }
|
|
|
|
void recvDone() { peer->sendDone(); }
|
|
virtual void sendDone() = 0;
|
|
|
|
bool sendPacket(EthPacketPtr packet)
|
|
{ return peer ? peer->recvPacket(packet) : true; }
|
|
virtual bool recvPacket(EthPacketPtr packet) = 0;
|
|
|
|
bool askBusy() {return peer->isBusy(); }
|
|
virtual bool isBusy() { return false; }
|
|
};
|
|
|
|
#endif // __DEV_ETHERINT_HH__
|