south_bridge.cc revision 5390
110259SAndrew.Bardsley@arm.com/* 210259SAndrew.Bardsley@arm.com * Copyright (c) 2004-2005 The Regents of The University of Michigan 310259SAndrew.Bardsley@arm.com * All rights reserved. 410259SAndrew.Bardsley@arm.com * 510259SAndrew.Bardsley@arm.com * Redistribution and use in source and binary forms, with or without 610259SAndrew.Bardsley@arm.com * modification, are permitted provided that the following conditions are 710259SAndrew.Bardsley@arm.com * met: redistributions of source code must retain the above copyright 810259SAndrew.Bardsley@arm.com * notice, this list of conditions and the following disclaimer; 910259SAndrew.Bardsley@arm.com * redistributions in binary form must reproduce the above copyright 1010259SAndrew.Bardsley@arm.com * notice, this list of conditions and the following disclaimer in the 1110259SAndrew.Bardsley@arm.com * documentation and/or other materials provided with the distribution; 1210259SAndrew.Bardsley@arm.com * neither the name of the copyright holders nor the names of its 1310259SAndrew.Bardsley@arm.com * contributors may be used to endorse or promote products derived from 1410259SAndrew.Bardsley@arm.com * this software without specific prior written permission. 1510259SAndrew.Bardsley@arm.com * 1610259SAndrew.Bardsley@arm.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1710259SAndrew.Bardsley@arm.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1810259SAndrew.Bardsley@arm.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1910259SAndrew.Bardsley@arm.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2010259SAndrew.Bardsley@arm.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2110259SAndrew.Bardsley@arm.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2210259SAndrew.Bardsley@arm.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2310259SAndrew.Bardsley@arm.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2410259SAndrew.Bardsley@arm.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2510259SAndrew.Bardsley@arm.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2610259SAndrew.Bardsley@arm.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2710259SAndrew.Bardsley@arm.com * 2810259SAndrew.Bardsley@arm.com * Authors: Gabe Black 2910259SAndrew.Bardsley@arm.com */ 3010259SAndrew.Bardsley@arm.com 3110259SAndrew.Bardsley@arm.com#include "arch/x86/x86_traits.hh" 3210259SAndrew.Bardsley@arm.com#include "base/range.hh" 3310259SAndrew.Bardsley@arm.com#include "dev/x86/south_bridge/south_bridge.hh" 3410259SAndrew.Bardsley@arm.com 3510259SAndrew.Bardsley@arm.comusing namespace X86ISA; 3610259SAndrew.Bardsley@arm.com 3710259SAndrew.Bardsley@arm.comvoid 3810259SAndrew.Bardsley@arm.comSouthBridge::addDevice(X86ISA::SubDevice & sub) 3910259SAndrew.Bardsley@arm.com{ 4010259SAndrew.Bardsley@arm.com rangeList.push_back(sub.addrRange); 4110259SAndrew.Bardsley@arm.com rangeMap.insert(sub.addrRange, &sub); 4210259SAndrew.Bardsley@arm.com} 4310259SAndrew.Bardsley@arm.com 4410259SAndrew.Bardsley@arm.comvoid 4510259SAndrew.Bardsley@arm.comSouthBridge::addressRanges(AddrRangeList &range_list) 4610259SAndrew.Bardsley@arm.com{ 4710259SAndrew.Bardsley@arm.com range_list = rangeList; 4810259SAndrew.Bardsley@arm.com} 4910259SAndrew.Bardsley@arm.com 5010259SAndrew.Bardsley@arm.comTick 5110259SAndrew.Bardsley@arm.comSouthBridge::read(PacketPtr pkt) 5210259SAndrew.Bardsley@arm.com{ 5310259SAndrew.Bardsley@arm.com RangeMapIt sub = 5410259SAndrew.Bardsley@arm.com rangeMap.find(RangeSize(pkt->getAddr(), 1)); 5510259SAndrew.Bardsley@arm.com assert(sub != rangeMap.end()); 5610259SAndrew.Bardsley@arm.com return sub->second->read(pkt); 5710259SAndrew.Bardsley@arm.com} 5810259SAndrew.Bardsley@arm.com 5910259SAndrew.Bardsley@arm.comTick 6010259SAndrew.Bardsley@arm.comSouthBridge::write(PacketPtr pkt) 6110259SAndrew.Bardsley@arm.com{ 6210259SAndrew.Bardsley@arm.com RangeMapIt sub = 6310259SAndrew.Bardsley@arm.com rangeMap.find(RangeSize(pkt->getAddr(), 1)); 6410259SAndrew.Bardsley@arm.com assert(sub != rangeMap.end()); 6510259SAndrew.Bardsley@arm.com return sub->second->write(pkt); 6610259SAndrew.Bardsley@arm.com} 6710259SAndrew.Bardsley@arm.com 6810259SAndrew.Bardsley@arm.comSouthBridge::SouthBridge(const Params *p) : PioDevice(p), 6910259SAndrew.Bardsley@arm.com pic1(0x20, 2, p->pio_latency), 7010259SAndrew.Bardsley@arm.com pic2(0xA0, 2, p->pio_latency), 7110259SAndrew.Bardsley@arm.com pit(0x40, 4, p->pio_latency), 7210259SAndrew.Bardsley@arm.com cmos(0x70, 2, p->pio_latency), 7310259SAndrew.Bardsley@arm.com speaker(0x61, 1, p->pio_latency) 7410259SAndrew.Bardsley@arm.com{ 7510259SAndrew.Bardsley@arm.com addDevice(pic1); 7610259SAndrew.Bardsley@arm.com addDevice(pic2); 7710259SAndrew.Bardsley@arm.com addDevice(pit); 7810259SAndrew.Bardsley@arm.com addDevice(cmos); 7910259SAndrew.Bardsley@arm.com addDevice(speaker); 8010259SAndrew.Bardsley@arm.com} 8110259SAndrew.Bardsley@arm.com 8210259SAndrew.Bardsley@arm.comSouthBridge * 8310259SAndrew.Bardsley@arm.comSouthBridgeParams::create() 8410259SAndrew.Bardsley@arm.com{ 8510259SAndrew.Bardsley@arm.com return new SouthBridge(this); 8610259SAndrew.Bardsley@arm.com} 8710259SAndrew.Bardsley@arm.com