etherbus.hh revision 56
112853Sgabeblack@google.com/* 212853Sgabeblack@google.com * Copyright (c) 2003 The Regents of The University of Michigan 312853Sgabeblack@google.com * All rights reserved. 412853Sgabeblack@google.com * 512853Sgabeblack@google.com * Redistribution and use in source and binary forms, with or without 612853Sgabeblack@google.com * modification, are permitted provided that the following conditions are 712853Sgabeblack@google.com * met: redistributions of source code must retain the above copyright 812853Sgabeblack@google.com * notice, this list of conditions and the following disclaimer; 912853Sgabeblack@google.com * redistributions in binary form must reproduce the above copyright 1012853Sgabeblack@google.com * notice, this list of conditions and the following disclaimer in the 1112853Sgabeblack@google.com * documentation and/or other materials provided with the distribution; 1212853Sgabeblack@google.com * neither the name of the copyright holders nor the names of its 1312853Sgabeblack@google.com * contributors may be used to endorse or promote products derived from 1412853Sgabeblack@google.com * this software without specific prior written permission. 1512853Sgabeblack@google.com * 1612853Sgabeblack@google.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1712853Sgabeblack@google.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1812853Sgabeblack@google.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1912853Sgabeblack@google.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2012853Sgabeblack@google.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2112853Sgabeblack@google.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2212853Sgabeblack@google.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2312853Sgabeblack@google.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2412853Sgabeblack@google.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2512853Sgabeblack@google.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2612853Sgabeblack@google.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2712853Sgabeblack@google.com */ 2812853Sgabeblack@google.com 2912853Sgabeblack@google.com/* @file 3012853Sgabeblack@google.com * Device module for modelling an ethernet hub 3112853Sgabeblack@google.com */ 3212853Sgabeblack@google.com 3312853Sgabeblack@google.com#ifndef __ETHERBUS_H__ 3412853Sgabeblack@google.com#define __ETHERBUS_H__ 3512853Sgabeblack@google.com 3612853Sgabeblack@google.com#include "sim/eventq.hh" 3712853Sgabeblack@google.com#include "dev/etherpkt.hh" 3812853Sgabeblack@google.com#include "sim/sim_object.hh" 3912853Sgabeblack@google.com 4012853Sgabeblack@google.comclass EtherDump; 4112853Sgabeblack@google.comclass EtherInt; 4212853Sgabeblack@google.comclass EtherBus : public SimObject 4312853Sgabeblack@google.com{ 4412853Sgabeblack@google.com protected: 4512853Sgabeblack@google.com typedef std::list<EtherInt *> devlist_t; 4612853Sgabeblack@google.com devlist_t devlist; 4712853Sgabeblack@google.com double ticks_per_byte; 4812853Sgabeblack@google.com bool loopback; 4912853Sgabeblack@google.com 5012853Sgabeblack@google.com protected: 5112853Sgabeblack@google.com class DoneEvent : public Event 5212853Sgabeblack@google.com { 5312853Sgabeblack@google.com protected: 5412853Sgabeblack@google.com EtherBus *bus; 5512853Sgabeblack@google.com 5612853Sgabeblack@google.com public: 5712853Sgabeblack@google.com DoneEvent(EventQueue *q, EtherBus *b) 5812853Sgabeblack@google.com : Event(q), bus(b) {} 5912853Sgabeblack@google.com virtual void process() { bus->txDone(); } 6012853Sgabeblack@google.com virtual const char *description() { return "ethernet bus completion"; } 6112853Sgabeblack@google.com }; 6212853Sgabeblack@google.com 6312853Sgabeblack@google.com DoneEvent event; 6412853Sgabeblack@google.com PacketPtr packet; 6512853Sgabeblack@google.com EtherInt *sender; 6612853Sgabeblack@google.com EtherDump *dump; 6712853Sgabeblack@google.com 6812853Sgabeblack@google.com public: 6912853Sgabeblack@google.com EtherBus(const std::string &name, double ticks_per_byte, bool loopback, 7012853Sgabeblack@google.com EtherDump *dump); 7112853Sgabeblack@google.com virtual ~EtherBus() {} 7212853Sgabeblack@google.com 7312853Sgabeblack@google.com void txDone(); 7412853Sgabeblack@google.com void reg(EtherInt *dev); 7512853Sgabeblack@google.com bool busy() const { return (bool)packet; } 7612853Sgabeblack@google.com bool send(EtherInt *sender, PacketPtr packet); 7712853Sgabeblack@google.com}; 7812853Sgabeblack@google.com 7912853Sgabeblack@google.com#endif // __ETHERBUS_H__ 8012853Sgabeblack@google.com