i8237.hh revision 7903
15818Sgblack@eecs.umich.edu/* 25818Sgblack@eecs.umich.edu * Copyright (c) 2008 The Regents of The University of Michigan 35818Sgblack@eecs.umich.edu * All rights reserved. 45818Sgblack@eecs.umich.edu * 55818Sgblack@eecs.umich.edu * Redistribution and use in source and binary forms, with or without 65818Sgblack@eecs.umich.edu * modification, are permitted provided that the following conditions are 75818Sgblack@eecs.umich.edu * met: redistributions of source code must retain the above copyright 85818Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer; 95818Sgblack@eecs.umich.edu * redistributions in binary form must reproduce the above copyright 105818Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer in the 115818Sgblack@eecs.umich.edu * documentation and/or other materials provided with the distribution; 125818Sgblack@eecs.umich.edu * neither the name of the copyright holders nor the names of its 135818Sgblack@eecs.umich.edu * contributors may be used to endorse or promote products derived from 145818Sgblack@eecs.umich.edu * this software without specific prior written permission. 155818Sgblack@eecs.umich.edu * 165818Sgblack@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 175818Sgblack@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 185818Sgblack@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 195818Sgblack@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 205818Sgblack@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 215818Sgblack@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 225818Sgblack@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 235818Sgblack@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 245818Sgblack@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 255818Sgblack@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 265818Sgblack@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 275818Sgblack@eecs.umich.edu * 285818Sgblack@eecs.umich.edu * Authors: Gabe Black 295818Sgblack@eecs.umich.edu */ 305818Sgblack@eecs.umich.edu 315818Sgblack@eecs.umich.edu#ifndef __DEV_X86_I8237_HH__ 325818Sgblack@eecs.umich.edu#define __DEV_X86_I8237_HH__ 335818Sgblack@eecs.umich.edu 345818Sgblack@eecs.umich.edu#include "dev/io_device.hh" 355818Sgblack@eecs.umich.edu#include "params/I8237.hh" 365818Sgblack@eecs.umich.edu 375818Sgblack@eecs.umich.edunamespace X86ISA 385818Sgblack@eecs.umich.edu{ 395818Sgblack@eecs.umich.edu 405818Sgblack@eecs.umich.educlass I8237 : public BasicPioDevice 415818Sgblack@eecs.umich.edu{ 425818Sgblack@eecs.umich.edu protected: 435818Sgblack@eecs.umich.edu Tick latency; 445818Sgblack@eecs.umich.edu uint8_t maskReg; 455818Sgblack@eecs.umich.edu 465818Sgblack@eecs.umich.edu public: 475818Sgblack@eecs.umich.edu typedef I8237Params Params; 485818Sgblack@eecs.umich.edu 495818Sgblack@eecs.umich.edu const Params * 505818Sgblack@eecs.umich.edu params() const 515818Sgblack@eecs.umich.edu { 525818Sgblack@eecs.umich.edu return dynamic_cast<const Params *>(_params); 535818Sgblack@eecs.umich.edu } 545818Sgblack@eecs.umich.edu 555818Sgblack@eecs.umich.edu I8237(Params *p) : BasicPioDevice(p), latency(p->pio_latency), maskReg(0) 565818Sgblack@eecs.umich.edu { 575818Sgblack@eecs.umich.edu pioSize = 16; 585818Sgblack@eecs.umich.edu } 595818Sgblack@eecs.umich.edu Tick read(PacketPtr pkt); 605818Sgblack@eecs.umich.edu 615818Sgblack@eecs.umich.edu Tick write(PacketPtr pkt); 627903Shestness@cs.utexas.edu 637903Shestness@cs.utexas.edu virtual void serialize(std::ostream &os); 647903Shestness@cs.utexas.edu virtual void unserialize(Checkpoint *cp, const std::string §ion); 655818Sgblack@eecs.umich.edu}; 665818Sgblack@eecs.umich.edu 677811Ssteve.reinhardt@amd.com} // namespace X86ISA 685818Sgblack@eecs.umich.edu 695818Sgblack@eecs.umich.edu#endif //__DEV_X86_I8237_HH__ 70