etherbus.hh revision 2
110860Sandreas.sandberg@arm.com/* 210860Sandreas.sandberg@arm.com * Copyright (c) 2003 The Regents of The University of Michigan 310860Sandreas.sandberg@arm.com * All rights reserved. 410860Sandreas.sandberg@arm.com * 510860Sandreas.sandberg@arm.com * Redistribution and use in source and binary forms, with or without 610860Sandreas.sandberg@arm.com * modification, are permitted provided that the following conditions are 710860Sandreas.sandberg@arm.com * met: redistributions of source code must retain the above copyright 810860Sandreas.sandberg@arm.com * notice, this list of conditions and the following disclaimer; 910860Sandreas.sandberg@arm.com * redistributions in binary form must reproduce the above copyright 1010860Sandreas.sandberg@arm.com * notice, this list of conditions and the following disclaimer in the 1110860Sandreas.sandberg@arm.com * documentation and/or other materials provided with the distribution; 1210860Sandreas.sandberg@arm.com * neither the name of the copyright holders nor the names of its 1310860Sandreas.sandberg@arm.com * contributors may be used to endorse or promote products derived from 1410860Sandreas.sandberg@arm.com * this software without specific prior written permission. 1510860Sandreas.sandberg@arm.com * 1610860Sandreas.sandberg@arm.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1710860Sandreas.sandberg@arm.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1810860Sandreas.sandberg@arm.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1910860Sandreas.sandberg@arm.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2010860Sandreas.sandberg@arm.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2110860Sandreas.sandberg@arm.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2210860Sandreas.sandberg@arm.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2310860Sandreas.sandberg@arm.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2410860Sandreas.sandberg@arm.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2510860Sandreas.sandberg@arm.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2610860Sandreas.sandberg@arm.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2710860Sandreas.sandberg@arm.com */ 2810860Sandreas.sandberg@arm.com 2910860Sandreas.sandberg@arm.com/* @file 3010860Sandreas.sandberg@arm.com * Device module for modelling an ethernet hub 3110860Sandreas.sandberg@arm.com */ 3210860Sandreas.sandberg@arm.com 3310860Sandreas.sandberg@arm.com#ifndef __ETHERBUS_H__ 3410860Sandreas.sandberg@arm.com#define __ETHERBUS_H__ 3510860Sandreas.sandberg@arm.com 3610860Sandreas.sandberg@arm.com#include "eventq.hh" 3710860Sandreas.sandberg@arm.com#include "etherpkt.hh" 3810860Sandreas.sandberg@arm.com#include "sim_object.hh" 3910860Sandreas.sandberg@arm.com 4010860Sandreas.sandberg@arm.comclass EtherDump; 4110860Sandreas.sandberg@arm.comclass EtherInt; 4210860Sandreas.sandberg@arm.comclass EtherBus : public SimObject 4310860Sandreas.sandberg@arm.com{ 4410860Sandreas.sandberg@arm.com protected: 4510860Sandreas.sandberg@arm.com typedef std::list<EtherInt *> devlist_t; 4610860Sandreas.sandberg@arm.com devlist_t devlist; 4710860Sandreas.sandberg@arm.com double ticks_per_byte; 4810860Sandreas.sandberg@arm.com bool loopback; 4910860Sandreas.sandberg@arm.com 5010860Sandreas.sandberg@arm.com protected: 5110860Sandreas.sandberg@arm.com class DoneEvent : public Event 5210860Sandreas.sandberg@arm.com { 5310860Sandreas.sandberg@arm.com protected: 5410860Sandreas.sandberg@arm.com EtherBus *bus; 5511168Sandreas.hansson@arm.com 5610860Sandreas.sandberg@arm.com public: 5710860Sandreas.sandberg@arm.com DoneEvent(EventQueue *q, EtherBus *b) 5811168Sandreas.hansson@arm.com : Event(q), bus(b) {} 5910860Sandreas.sandberg@arm.com virtual void process() { bus->txDone(); } 6010860Sandreas.sandberg@arm.com virtual const char *description() { return "ethernet bus completion"; } 6110860Sandreas.sandberg@arm.com }; 6210860Sandreas.sandberg@arm.com 6310860Sandreas.sandberg@arm.com DoneEvent event; 6410860Sandreas.sandberg@arm.com PacketPtr packet; 6510860Sandreas.sandberg@arm.com EtherInt *sender; 6610860Sandreas.sandberg@arm.com EtherDump *dump; 6710860Sandreas.sandberg@arm.com 6810860Sandreas.sandberg@arm.com public: 6910860Sandreas.sandberg@arm.com EtherBus(const std::string &name, double ticks_per_byte, bool loopback, 7010860Sandreas.sandberg@arm.com EtherDump *dump); 7110860Sandreas.sandberg@arm.com virtual ~EtherBus() {} 7210860Sandreas.sandberg@arm.com 7310860Sandreas.sandberg@arm.com void txDone(); 7410860Sandreas.sandberg@arm.com void reg(EtherInt *dev); 7510860Sandreas.sandberg@arm.com bool busy() const { return (bool)packet; } 7610860Sandreas.sandberg@arm.com bool send(EtherInt *sender, PacketPtr packet); 7710860Sandreas.sandberg@arm.com}; 7810860Sandreas.sandberg@arm.com 7910860Sandreas.sandberg@arm.com#endif // __ETHERBUS_H__ 8010860Sandreas.sandberg@arm.com