| /* |
| * 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_I8042_HH__ |
| #define __DEV_X86_I8042_HH__ |
| |
| #include <deque> |
| |
| #include "base/bitunion.hh" |
| #include "dev/intpin.hh" |
| #include "dev/io_device.hh" |
| #include "dev/ps2/device.hh" |
| #include "params/I8042.hh" |
| |
| namespace X86ISA |
| { |
| |
| class I8042 : public BasicPioDevice |
| { |
| protected: |
| enum Command |
| { |
| GetCommandByte = 0x20, |
| ReadControllerRamBase = 0x20, |
| WriteCommandByte = 0x60, |
| WriteControllerRamBase = 0x60, |
| CheckForPassword = 0xA4, |
| LoadPassword = 0xA5, |
| CheckPassword = 0xA6, |
| DisableMouse = 0xA7, |
| EnableMouse = 0xA8, |
| TestMouse = 0xA9, |
| SelfTest = 0xAA, |
| InterfaceTest = 0xAB, |
| DiagnosticDump = 0xAC, |
| DisableKeyboard = 0xAD, |
| EnableKeyboard = 0xAE, |
| ReadInputPort = 0xC0, |
| ContinuousPollLow = 0xC1, |
| ContinuousPollHigh = 0xC2, |
| ReadOutputPort = 0xD0, |
| WriteOutputPort = 0xD1, |
| WriteKeyboardOutputBuff = 0xD2, |
| WriteMouseOutputBuff = 0xD3, |
| WriteToMouse = 0xD4, |
| DisableA20 = 0xDD, |
| EnableA20 = 0xDF, |
| ReadTestInputs = 0xE0, |
| PulseOutputBitBase = 0xF0, |
| SystemReset = 0xFE |
| }; |
| |
| BitUnion8(StatusReg) |
| Bitfield<7> parityError; |
| Bitfield<6> timeout; |
| Bitfield<5> mouseOutputFull; |
| Bitfield<4> keyboardUnlocked; |
| Bitfield<3> commandLast; |
| Bitfield<2> passedSelfTest; |
| Bitfield<1> inputFull; |
| Bitfield<0> outputFull; |
| EndBitUnion(StatusReg) |
| |
| BitUnion8(CommandByte) |
| Bitfield<6> convertScanCodes; |
| Bitfield<5> disableMouse; |
| Bitfield<4> disableKeyboard; |
| Bitfield<2> passedSelfTest; |
| Bitfield<1> mouseFullInt; |
| Bitfield<0> keyboardFullInt; |
| EndBitUnion(CommandByte) |
| |
| Tick latency; |
| Addr dataPort; |
| Addr commandPort; |
| |
| StatusReg statusReg; |
| CommandByte commandByte; |
| |
| uint8_t dataReg; |
| |
| static const uint16_t NoCommand = (uint16_t)(-1); |
| uint16_t lastCommand; |
| |
| std::vector<IntSourcePin<I8042> *> mouseIntPin; |
| std::vector<IntSourcePin<I8042> *> keyboardIntPin; |
| |
| ps2::Device *mouse; |
| ps2::Device *keyboard; |
| |
| void writeData(uint8_t newData, bool mouse = false); |
| uint8_t readDataOut(); |
| |
| public: |
| using Params = I8042Params; |
| |
| I8042(const Params &p); |
| |
| Port & |
| getPort(const std::string &if_name, PortID idx=InvalidPortID) override |
| { |
| if (if_name == "mouse_int_pin") |
| return *mouseIntPin.at(idx); |
| else if (if_name == "keyboard_int_pin") |
| return *keyboardIntPin.at(idx); |
| else |
| return BasicPioDevice::getPort(if_name, idx); |
| } |
| |
| AddrRangeList getAddrRanges() const override; |
| |
| Tick read(PacketPtr pkt) override; |
| |
| Tick write(PacketPtr pkt) override; |
| |
| void serialize(CheckpointOut &cp) const override; |
| void unserialize(CheckpointIn &cp) override; |
| }; |
| |
| } // namespace X86ISA |
| |
| #endif //__DEV_X86_I8042_HH__ |