i82094aa.hh revision 5651:7f0c8006c3d7
1/* 2 * Copyright (c) 2008 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 * Authors: Gabe Black 29 */ 30 31#ifndef __DEV_X86_I82094AA_HH__ 32#define __DEV_X86_I82094AA_HH__ 33 34#include "base/bitunion.hh" 35#include "base/range_map.hh" 36#include "dev/io_device.hh" 37#include "dev/x86/intdev.hh" 38#include "params/I82094AA.hh" 39 40namespace X86ISA 41{ 42 43class I82094AA : public PioDevice, public IntDev 44{ 45 public: 46 BitUnion64(RedirTableEntry) 47 Bitfield<63, 32> topDW; 48 Bitfield<55, 32> topReserved; 49 Bitfield<31, 0> bottomDW; 50 Bitfield<31, 17> bottomReserved; 51 Bitfield<63, 56> dest; 52 Bitfield<16> mask; 53 Bitfield<15> trigger; 54 Bitfield<14> remoteIRR; 55 Bitfield<13> polarity; 56 Bitfield<12> deliveryStatus; 57 Bitfield<11> destMode; 58 Bitfield<10, 8> deliveryMode; 59 Bitfield<7, 0> vector; 60 EndBitUnion(RedirTableEntry) 61 62 protected: 63 System * system; 64 Tick latency; 65 Addr pioAddr; 66 67 uint8_t regSel; 68 uint8_t id; 69 uint8_t arbId; 70 71 static const uint8_t TableSize = 24; 72 // This implementation is based on version 0x11, but 0x14 avoids having 73 // to deal with the arbitration and APIC bus guck. 74 static const uint8_t APICVersion = 0x14; 75 76 RedirTableEntry redirTable[TableSize]; 77 78 public: 79 typedef I82094AAParams Params; 80 81 const Params * 82 params() const 83 { 84 return dynamic_cast<const Params *>(_params); 85 } 86 87 I82094AA(Params *p); 88 89 Tick read(PacketPtr pkt); 90 Tick write(PacketPtr pkt); 91 92 void addressRanges(AddrRangeList &range_list) 93 { 94 range_list.clear(); 95 range_list.push_back(RangeEx(pioAddr, pioAddr + 4)); 96 range_list.push_back(RangeEx(pioAddr + 16, pioAddr + 20)); 97 } 98 99 void getIntAddrRange(AddrRangeList &range_list) 100 { 101 range_list.clear(); 102 range_list.push_back(RangeEx(x86InterruptAddress(1, 0), 103 x86InterruptAddress(1, 0) + PhysAddrAPICRangeSize)); 104 } 105 106 void writeReg(uint8_t offset, uint32_t value); 107 uint32_t readReg(uint8_t offset); 108 109 Port *getPort(const std::string &if_name, int idx = -1) 110 { 111 if (if_name == "int_port") 112 return intPort; 113 return PioDevice::getPort(if_name, idx); 114 } 115 116 void signalInterrupt(int line); 117}; 118 119}; // namespace X86ISA 120 121#endif //__DEV_X86_SOUTH_BRIDGE_I8254_HH__ 122