| /* |
| * Copyright (c) 2008 The Regents of The University of Michigan |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer; |
| * redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution; |
| * neither the name of the copyright holders nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef __DEV_X86_I82094AA_HH__ |
| #define __DEV_X86_I82094AA_HH__ |
| |
| #include <map> |
| |
| #include "base/bitunion.hh" |
| #include "dev/x86/intdev.hh" |
| #include "dev/intpin.hh" |
| #include "dev/io_device.hh" |
| #include "params/I82094AA.hh" |
| |
| namespace X86ISA |
| { |
| |
| class I8259; |
| class Interrupts; |
| |
| class I82094AA : public BasicPioDevice |
| { |
| public: |
| BitUnion64(RedirTableEntry) |
| Bitfield<63, 32> topDW; |
| Bitfield<55, 32> topReserved; |
| Bitfield<31, 0> bottomDW; |
| Bitfield<31, 17> bottomReserved; |
| Bitfield<63, 56> dest; |
| Bitfield<16> mask; |
| Bitfield<15> trigger; |
| Bitfield<14> remoteIRR; |
| Bitfield<13> polarity; |
| Bitfield<12> deliveryStatus; |
| Bitfield<11> destMode; |
| Bitfield<10, 8> deliveryMode; |
| Bitfield<7, 0> vector; |
| EndBitUnion(RedirTableEntry) |
| |
| protected: |
| I8259 * extIntPic; |
| |
| uint8_t regSel; |
| uint8_t initialApicId; |
| uint8_t id; |
| uint8_t arbId; |
| |
| uint64_t lowestPriorityOffset; |
| |
| static const uint8_t TableSize = 24; |
| // This implementation is based on version 0x11, but 0x14 avoids having |
| // to deal with the arbitration and APIC bus guck. |
| static const uint8_t APICVersion = 0x14; |
| |
| RedirTableEntry redirTable[TableSize]; |
| bool pinStates[TableSize]; |
| |
| std::vector<IntSinkPin<I82094AA> *> inputs; |
| |
| IntRequestPort<I82094AA> intRequestPort; |
| |
| public: |
| using Params = I82094AAParams; |
| |
| I82094AA(const Params &p); |
| |
| void init() override; |
| |
| Tick read(PacketPtr pkt) override; |
| Tick write(PacketPtr pkt) override; |
| |
| void writeReg(uint8_t offset, uint32_t value); |
| uint32_t readReg(uint8_t offset); |
| |
| Port &getPort(const std::string &if_name, |
| PortID idx=InvalidPortID) override; |
| |
| bool recvResponse(PacketPtr pkt); |
| |
| void signalInterrupt(int line); |
| void raiseInterruptPin(int number); |
| void lowerInterruptPin(int number); |
| |
| void serialize(CheckpointOut &cp) const override; |
| void unserialize(CheckpointIn &cp) override; |
| }; |
| |
| } // namespace X86ISA |
| |
| #endif //__DEV_X86_SOUTH_BRIDGE_I8254_HH__ |