113 lines
3.5 KiB
C
113 lines
3.5 KiB
C
// PC keyboard interface constants
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#define KBSTATP 0x64 // kbd controller status port(I)
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#define KBS_DIB 0x01 // kbd data in buffer
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#define KBDATAP 0x60 // kbd data port(I)
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#define NO 0
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#define SHIFT (1<<0)
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#define CTL (1<<1)
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#define ALT (1<<2)
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#define CAPSLOCK (1<<3)
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#define NUMLOCK (1<<4)
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#define SCROLLLOCK (1<<5)
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#define E0ESC (1<<6)
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// Special keycodes
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#define KEY_HOME 0xE0
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#define KEY_END 0xE1
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#define KEY_UP 0xE2
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#define KEY_DN 0xE3
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#define KEY_LF 0xE4
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#define KEY_RT 0xE5
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#define KEY_PGUP 0xE6
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#define KEY_PGDN 0xE7
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#define KEY_INS 0xE8
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#define KEY_DEL 0xE9
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// C('A') == Control-A
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#define C(x) (x - '@')
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static uchar shiftcode[256] =
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{
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[0x1D] CTL,
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[0x2A] SHIFT,
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[0x36] SHIFT,
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[0x38] ALT,
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[0x9D] CTL,
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[0xB8] ALT
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};
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static uchar togglecode[256] =
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{
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[0x3A] CAPSLOCK,
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[0x45] NUMLOCK,
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[0x46] SCROLLLOCK
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};
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static uchar normalmap[256] =
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{
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NO, 0x1B, '1', '2', '3', '4', '5', '6', // 0x00
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'7', '8', '9', '0', '-', '=', '\b', '\t',
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'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', // 0x10
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'o', 'p', '[', ']', '\n', NO, 'a', 's',
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'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', // 0x20
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'\'', '`', NO, '\\', 'z', 'x', 'c', 'v',
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'b', 'n', 'm', ',', '.', '/', NO, '*', // 0x30
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NO, ' ', NO, NO, NO, NO, NO, NO,
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NO, NO, NO, NO, NO, NO, NO, '7', // 0x40
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'8', '9', '-', '4', '5', '6', '+', '1',
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'2', '3', '0', '.', NO, NO, NO, NO, // 0x50
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[0x9C] '\n', // KP_Enter
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[0xB5] '/', // KP_Div
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[0xC8] KEY_UP, [0xD0] KEY_DN,
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[0xC9] KEY_PGUP, [0xD1] KEY_PGDN,
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[0xCB] KEY_LF, [0xCD] KEY_RT,
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[0x97] KEY_HOME, [0xCF] KEY_END,
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[0xD2] KEY_INS, [0xD3] KEY_DEL
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};
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static uchar shiftmap[256] =
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{
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NO, 033, '!', '@', '#', '$', '%', '^', // 0x00
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'&', '*', '(', ')', '_', '+', '\b', '\t',
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'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', // 0x10
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'O', 'P', '{', '}', '\n', NO, 'A', 'S',
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'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', // 0x20
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'"', '~', NO, '|', 'Z', 'X', 'C', 'V',
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'B', 'N', 'M', '<', '>', '?', NO, '*', // 0x30
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NO, ' ', NO, NO, NO, NO, NO, NO,
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NO, NO, NO, NO, NO, NO, NO, '7', // 0x40
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'8', '9', '-', '4', '5', '6', '+', '1',
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'2', '3', '0', '.', NO, NO, NO, NO, // 0x50
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[0x9C] '\n', // KP_Enter
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[0xB5] '/', // KP_Div
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[0xC8] KEY_UP, [0xD0] KEY_DN,
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[0xC9] KEY_PGUP, [0xD1] KEY_PGDN,
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[0xCB] KEY_LF, [0xCD] KEY_RT,
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[0x97] KEY_HOME, [0xCF] KEY_END,
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[0xD2] KEY_INS, [0xD3] KEY_DEL
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};
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static uchar ctlmap[256] =
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{
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NO, NO, NO, NO, NO, NO, NO, NO,
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NO, NO, NO, NO, NO, NO, NO, NO,
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C('Q'), C('W'), C('E'), C('R'), C('T'), C('Y'), C('U'), C('I'),
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C('O'), C('P'), NO, NO, '\r', NO, C('A'), C('S'),
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C('D'), C('F'), C('G'), C('H'), C('J'), C('K'), C('L'), NO,
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NO, NO, NO, C('\\'), C('Z'), C('X'), C('C'), C('V'),
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C('B'), C('N'), C('M'), NO, NO, C('/'), NO, NO,
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[0x9C] '\r', // KP_Enter
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[0xB5] C('/'), // KP_Div
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[0xC8] KEY_UP, [0xD0] KEY_DN,
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[0xC9] KEY_PGUP, [0xD1] KEY_PGDN,
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[0xCB] KEY_LF, [0xCD] KEY_RT,
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[0x97] KEY_HOME, [0xCF] KEY_END,
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[0xD2] KEY_INS, [0xD3] KEY_DEL
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};
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