isa_fake.cc revision 2662:f24ae2d09e27
1/* 2 * Copyright (c) 2004-2005 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29/** @file 30 * Isa Fake Device implementation 31 */ 32 33#include <deque> 34#include <string> 35#include <vector> 36 37#include "base/trace.hh" 38#include "dev/isa_fake.hh" 39#include "mem/packet.hh" 40#include "sim/builder.hh" 41#include "sim/system.hh" 42 43using namespace std; 44 45IsaFake::IsaFake(Params *p) 46 : BasicPioDevice(p) 47{ 48 pioSize = p->pio_size; 49} 50 51Tick 52IsaFake::read(Packet *pkt) 53{ 54 assert(pkt->result == Packet::Unknown); 55 assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize); 56 57 DPRINTF(Tsunami, "read va=%#x size=%d\n", pkt->getAddr(), pkt->getSize()); 58 59 switch (pkt->getSize()) { 60 pkt->set(0xFFFFFFFFFFFFFFFFULL); 61 break; 62 case sizeof(uint32_t): 63 pkt->set((uint32_t)0xFFFFFFFF); 64 break; 65 case sizeof(uint16_t): 66 pkt->set((uint16_t)0xFFFF); 67 break; 68 case sizeof(uint8_t): 69 pkt->set((uint8_t)0xFF); 70 break; 71 default: 72 panic("invalid access size(?) for PCI configspace!\n"); 73 } 74 pkt->result = Packet::Success; 75 return pioDelay; 76} 77 78Tick 79IsaFake::write(Packet *pkt) 80{ 81 DPRINTF(Tsunami, "write - va=%#x size=%d \n", pkt->getAddr(), pkt->getSize()); 82 pkt->result = Packet::Success; 83 return pioDelay; 84} 85 86BEGIN_DECLARE_SIM_OBJECT_PARAMS(IsaFake) 87 88 Param<Addr> pio_addr; 89 Param<Tick> pio_latency; 90 Param<Addr> pio_size; 91 SimObjectParam<Platform *> platform; 92 SimObjectParam<System *> system; 93 94END_DECLARE_SIM_OBJECT_PARAMS(IsaFake) 95 96BEGIN_INIT_SIM_OBJECT_PARAMS(IsaFake) 97 98 INIT_PARAM(pio_addr, "Device Address"), 99 INIT_PARAM(pio_latency, "Programmed IO latency"), 100 INIT_PARAM(pio_size, "Size of address range"), 101 INIT_PARAM(platform, "platform"), 102 INIT_PARAM(system, "system object") 103 104END_INIT_SIM_OBJECT_PARAMS(IsaFake) 105 106CREATE_SIM_OBJECT(IsaFake) 107{ 108 IsaFake::Params *p = new IsaFake::Params; 109 p->name = getInstanceName(); 110 p->pio_addr = pio_addr; 111 p->pio_delay = pio_latency; 112 p->pio_size = pio_size; 113 p->platform = platform; 114 p->system = system; 115 return new IsaFake(p); 116} 117 118REGISTER_SIM_OBJECT("IsaFake", IsaFake) 119