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sortix--sortix/sortix/keyboard.cpp

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Initial version of Sortix.
2011-08-05 14:25:00 +02:00
/******************************************************************************
COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2011.
This file is part of Sortix.
Sortix is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.
Sortix is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
details.
You should have received a copy of the GNU General Public License along
with Sortix. If not, see <http://www.gnu.org/licenses/>.
keyboard.cpp
A driver for the PS2 Keyboard.
******************************************************************************/
#include "platform.h"
#include "globals.h"
#include "iprintable.h"
#include "iirqhandler.h"
#include "log.h"
#include "panic.h"
#include "keyboard.h"
#include "isr.h"
#include "pong.h"
namespace Sortix
{
namespace Keyboard
{
namespace Layouts
{
const uint32_t UNKNOWN = 0xFFFFFFFF;
const uint32_t ESC = 0xFFFFFFFF - 1;
const uint32_t CTRL = 0xFFFFFFFF - 2;
const uint32_t LSHFT = 0xFFFFFFFF - 3;
const uint32_t RSHFT = 0xFFFFFFFF - 4;
const uint32_t ALT = 0xFFFFFFFF - 5;
const uint32_t F1 = 0xFFFFFFFF - 6;
const uint32_t F2 = 0xFFFFFFFF - 7;
const uint32_t F3 = 0xFFFFFFFF - 8;
const uint32_t F4 = 0xFFFFFFFF - 9;
const uint32_t F5 = 0xFFFFFFFF - 10;
const uint32_t F6 = 0xFFFFFFFF - 11;
const uint32_t F7 = 0xFFFFFFFF - 12;
const uint32_t F8 = 0xFFFFFFFF - 13;
const uint32_t F9 = 0xFFFFFFFF - 14;
const uint32_t F10 = 0xFFFFFFFF - 15;
const uint32_t F11 = 0xFFFFFFFF - 16;
const uint32_t F12 = 0xFFFFFFFF - 17;
const uint32_t SCRLCK = 0xFFFFFFFF - 18;
const uint32_t HOME = 0xFFFFFFFF - 19;
const uint32_t UP = 0xFFFFFFFF - 20;
const uint32_t LEFT = 0xFFFFFFFF - 21;
const uint32_t RIGHT = 0xFFFFFFFF - 22;
const uint32_t DOWN = 0xFFFFFFFF - 23;
const uint32_t PGUP = 0xFFFFFFFF - 24;
const uint32_t PGDOWN = 0xFFFFFFFF - 25;
const uint32_t END = 0xFFFFFFFF - 26;
const uint32_t INS = 0xFFFFFFFF - 27;
const uint32_t DEL = 0xFFFFFFFF - 28;
const uint32_t CAPS = 0xFFFFFFFF - 29;
const uint32_t NONE = 0xFFFFFFFF - 30;
const uint32_t ALTGR = 0xFFFFFFFF - 31;
const uint32_t NUMLCK = 0xFFFFFFFF - 32;
namespace US
{
uint32_t sg[128] =
{
UNKNOWN,
ESC,
'1',
'2',
'3',
'4',
'5',
'6',
'7',
'8',
'9',
'0',
'-',
'=',
'\b',
'\t',
'q',
'w',
'e',
'r',
't',
'y',
'u',
'i',
'o',
'p',
'[',
']',
'\n',
CTRL,
'a',
's',
'd',
'f',
'g',
'h',
'j',
'k',
'l',
';',
'\'',
'`',
LSHFT,
'\\',
'z',
'x',
'c',
'v',
'b',
'n',
'm',
',',
'.',
'/',
RSHFT,
'*',
ALT,
' ',
CAPS,
F1,
F2,
F3,
F4,
F5,
F6,
F7,
F8,
F9,
F10,
NUMLCK,
SCRLCK,
HOME,
UP,
PGUP,
'-',
LEFT,
UNKNOWN,
RIGHT,
'+',
END,
DOWN,
PGDOWN,
INS,
DEL,
UNKNOWN,
UNKNOWN,
UNKNOWN,
F11,
F12,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
};
uint32_t Sg[128] =
{
UNKNOWN,
ESC,
'!',
'@',
'#',
'$',
'%',
'^',
'&',
'*',
'(',
')',
'_',
'+',
'\b',
'\t', // TODO: Make it de-tab!
'Q',
'W',
'E',
'R',
'T',
'Y',
'U',
'I',
'O',
'P',
'{',
'}',
'\n',
CTRL,
'A',
'S',
'D',
'F',
'G',
'H',
'J',
'K',
'L',
':',
'"',
'~',
LSHFT,
'|',
'Z',
'X',
'C',
'V',
'B',
'N',
'M',
'<',
'>',
'?',
RSHFT,
'*',
ALT,
' ',
CAPS,
F1,
F2,
F3,
F4,
F5,
F6,
F7,
F8,
F9,
F10,
NUMLCK,
SCRLCK,
HOME,
UP,
PGUP,
'-',
LEFT,
UNKNOWN,
RIGHT,
'+',
END,
DOWN,
PGDOWN,
INS,
DEL,
UNKNOWN,
UNKNOWN,
UNKNOWN,
F11,
F12,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
};
uint32_t sG[128] =
{
UNKNOWN,
ESC,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
'\b',
'\t',
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
'\n',
CTRL,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
LSHFT,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
RSHFT,
UNKNOWN,
ALT,
' ',
CAPS,
F1,
F2,
F3,
F4,
F5,
F6,
F7,
F8,
F9,
F10,
NUMLCK,
SCRLCK,
HOME,
UP,
PGUP,
'-',
LEFT,
UNKNOWN,
RIGHT,
'+',
END,
DOWN,
PGDOWN,
INS,
DEL,
UNKNOWN,
UNKNOWN,
UNKNOWN,
F11,
F12,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
};
uint32_t SG[128] =
{
UNKNOWN,
ESC,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
'\b',
'\t',
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
'\n',
CTRL,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
LSHFT,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
RSHFT,
UNKNOWN,
ALT,
' ',
CAPS,
F1,
F2,
F3,
F4,
F5,
F6,
F7,
F8,
F9,
F10,
NUMLCK,
SCRLCK,
HOME,
UP,
PGUP,
'-',
LEFT,
UNKNOWN,
RIGHT,
'+',
END,
DOWN,
PGDOWN,
INS,
DEL,
UNKNOWN,
UNKNOWN,
UNKNOWN,
F11,
F12,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
UNKNOWN,
};
uint32_t* Layout[4] = { sg, Sg, sG, SG };
}
uint32_t** Layout = US::Layout;
nat Mask = 0;
nat LockMask = 0;
const nat Shift = (1<<0);
const nat AltGr = (1<<1);
const nat ScrLck = (1<<2);
const nat LEDScrLck = (1<<0);
const nat LEDNumLck = (1<<1);
const nat LEDCapsLck = (1<<2);
uint32_t GetCodePoint(uint8_t Scancode)
{
nat TableIndex = 0x3 & (Mask ^ LockMask);
//Log::PrintF("[m=%x,lm=%x,ti=%x]", Mask, LockMask, TableIndex);
uint32_t CodePoint = Layout[TableIndex][Scancode & 0x7F];
if ( CodePoint == UNKNOWN ) { return UNKNOWN; }
if ( Scancode & 0x80 )
{
if ( CodePoint == LSHFT ) { Mask &= ~Shift; }
if ( CodePoint == ALTGR ) { Mask &= ~AltGr; }
if ( CodePoint == SCRLCK ) { Mask &= ~ScrLck; }
}
else
{
if ( CodePoint == LSHFT ) { Mask |= Shift; }
if ( CodePoint == ALTGR ) { Mask |= AltGr; }
if ( CodePoint == SCRLCK ) { Mask |= ScrLck; }
if ( CodePoint == CAPS ) { LockMask ^= Shift; SetLEDs(LEDCapsLck); }
}
return CodePoint;
}
}
uint8_t LEDs;
void Init()
{
// Initialize variables.
LEDs = 0;
// Register our keystroke callback.
register_interrupt_handler(IRQ1, OnIRQ1);
// If any scancodes were already pending, our interrupt handler
// will never be called. Let's just discard anything pending.
CPU::InPortB(0x60);
}
void OnIRQ1(CPU::InterruptRegisters* Regs)
{
// Read the scancode from the data register.
uint8_t Scancode = CPU::InPortB(0x60);
//Log::PrintF("[%u]", Scancode);
uint32_t CodePoint = Layouts::GetCodePoint(Scancode);
bool KeyUp = (Scancode & 0x80) > 0;
#if PONG
Pong::OnKeystroke(CodePoint, KeyUp); return;
#endif
#if 1
return;
#endif
//if ( Reader != NULL ) { Reader->OnKeystroke(CodePoint, KeyUp); return; }
// Use this to debug the exact scancodes you receive!
//Log::PrintF("[%u/U+%x]", Scancode, CodePoint);
if ( CodePoint == Layouts::UNKNOWN ) { Log::PrintF("^%u", Scancode);return; }
if ( CodePoint & (1<<31) ) { return; }
// The high bit of the scancode is set if the key is released.
if ( Scancode & 0x80 ) { return; }
if ( CodePoint & 0xFFFFFF80 ) { Log::PrintF("U+%x", CodePoint); return; }
Log::PrintF("%s", &CodePoint); // Little endian hack!
}
void SetLEDs(uint8_t Toggle)
{
LEDs ^= Toggle;
while ( (CPU::InPortB(0x64) & (1<<1)) != 0 ) { } //loop Until zero
CPU::OutPortB(0x60, 0xED);
while ( (CPU::InPortB(0x64) & (1<<1)) != 0 ) { } //loop Until zero
CPU::OutPortB(0x60, LEDs);
}
}
}
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