* Copyright (c) 1990 The Regents of the University of California.
* This code is derived from software contributed to Berkeley by
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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
* @(#)kbd.c 7.4 (Berkeley) 5/4/91
#define L 0x01 /* locking function */
#define SHF 0x02 /* keyboard shift */
#define ALT 0x04 /* alternate shift -- alternate chars */
#define NUM 0x08 /* numeric shift cursors vs. numeric */
#define CTL 0x10 /* control shift -- allows ctl function */
#define CPS 0x20 /* caps shift -- swaps case of letter */
#define ASCII 0x40 /* ascii code for this key */
#define STP 0x80 /* stop output */
typedef unsigned char u_char
;
0, ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, /* scan 0- 7 */
ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, /* scan 8-15 */
ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, /* scan 16-23 */
ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, CTL
, ASCII
, ASCII
, /* scan 24-31 */
ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, /* scan 32-39 */
ASCII
, ASCII
, SHF
, ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, /* scan 40-47 */
ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, SHF
, ASCII
, /* scan 48-55 */
ALT
, ASCII
, CPS
|L
, 0, 0, ASCII
, 0, 0, /* scan 56-63 */
0, 0, 0, 0, 0, NUM
|L
, STP
|L
, ASCII
, /* scan 64-71 */
ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, ASCII
, /* scan 72-79 */
ASCII
, ASCII
, ASCII
, ASCII
, 0, 0, 0, 0, /* scan 80-87 */
0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, } ;
u_char unshift
[] = { /* no shift */
0, 033 , '1' , '2' , '3' , '4' , '5' , '6' , /* scan 0- 7 */
'7' , '8' , '9' , '0' , '-' , '=' , 0177 ,'\t' , /* scan 8-15 */
'q' , 'w' , 'e' , 'r' , 't' , 'y' , 'u' , 'i' , /* scan 16-23 */
'o' , 'p' , '[' , ']' , '\r' , CTL
, 'a' , 's' , /* scan 24-31 */
'd' , 'f' , 'g' , 'h' , 'j' , 'k' , 'l' , ';' , /* scan 32-39 */
'\'' , '`' , SHF
, '\\' , 'z' , 'x' , 'c' , 'v' , /* scan 40-47 */
'b' , 'n' , 'm' , ',' , '.' , '/' , SHF
, '*', /* scan 48-55 */
ALT
, ' ' , CPS
|L
, 0, 0, ' ' , 0, 0, /* scan 56-63 */
0, 0, 0, 0, 0, NUM
|L
, STP
|L
, '7', /* scan 64-71 */
'8', '9', '-', '4', '5', '6', '+', '1', /* scan 72-79 */
'2', '3', '0', '.', 0, 0, 0, 0, /* scan 80-87 */
0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, } ;
u_char shift
[] = { /* shift shift */
0, 033 , '!' , '@' , '#' , '$' , '%' , '^' , /* scan 0- 7 */
'&' , '*' , '(' , ')' , '_' , '+' , 0177 ,'\t' , /* scan 8-15 */
'Q' , 'W' , 'E' , 'R' , 'T' , 'Y' , 'U' , 'I' , /* scan 16-23 */
'O' , 'P' , '[' , ']' , '\r' , CTL
, 'A' , 'S' , /* scan 24-31 */
'D' , 'F' , 'G' , 'H' , 'J' , 'K' , 'L' , ':' , /* scan 32-39 */
'"' , '~' , SHF
, '|' , 'Z' , 'X' , 'C' , 'V' , /* scan 40-47 */
'B' , 'N' , 'M' , '<' , '>' , '?' , SHF
, '*', /* scan 48-55 */
ALT
, ' ' , CPS
|L
, 0, 0, ' ' , 0, 0, /* scan 56-63 */
0, 0, 0, 0, 0, NUM
|L
, STP
|L
, '7', /* scan 64-71 */
'8', '9', '-', '4', '5', '6', '+', '1', /* scan 72-79 */
'2', '3', '0', '.', 0, 0, 0, 0, /* scan 80-87 */
0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, } ;
u_char ctl
[] = { /* CTL shift */
0, 033 , '!' , 000 , '#' , '$' , '%' , 036 , /* scan 0- 7 */
'&' , '*' , '(' , ')' , 037 , '+' , 034 ,'\177', /* scan 8-15 */
021 , 027 , 005 , 022 , 024 , 031 , 025 , 011 , /* scan 16-23 */
017 , 020 , 033 , 035 , '\r' , CTL
, 001 , 013 , /* scan 24-31 */
004 , 006 , 007 , 010 , 012 , 013 , 014 , ';' , /* scan 32-39 */
'\'' , '`' , SHF
, 034 , 032 , 030 , 003 , 026 , /* scan 40-47 */
002 , 016 , 015 , '<' , '>' , '?' , SHF
, '*', /* scan 48-55 */
ALT
, ' ' , CPS
|L
, 0, 0, ' ' , 0, 0, /* scan 56-63 */
CPS
|L
, 0, 0, 0, 0, 0, 0, 0, /* scan 64-71 */
0, 0, 0, 0, 0, 0, 0, 0, /* scan 72-79 */
0, 0, 0, 0, 0, 0, 0, 0, /* scan 80-87 */
0, 0, 033, '7' , '4' , '1' , 0, NUM
|L
, /* scan 88-95 */
'8' , '5' , '2' , 0, STP
|L
, '9' , '6' , '3' , /*scan 96-103*/
'.' , 0, '*' , '-' , '+' , 0, 0, 0, /*scan 104-111*/
0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, } ;
u_short action
; /* how this key functions */
char ascii
[8]; /* ascii result character indexed by shifts */
u_char shfts
, ctls
, alts
, caps
, num
, stp
;
#define KBSTATP 0x64 /* kbd status port */
#define KBS_INP_BUF_FUL 0x02 /* kbd char ready */
#define KBDATAP 0x60 /* kbd data port */
#define KBSTATUSPORT 0x61 /* kbd status */
} while(dt
== inb(0x60));
brk
= dt
& 0x80 ; dt
= dt
& 0x7f ;
if(brk
) shfts
= 0; else shfts
= 1;
if(brk
) alts
= 0; else alts
= 1;
} else if(brk
) num
= 0; else num
= 1;
if(brk
) ctls
= 0; else ctls
= 1;
} else if(brk
) caps
= 0; else caps
= 1;
} else if(brk
) stp
= 0; else stp
= 1;
if(ctl
&& alts
&& dt
== 83) exit();
if ((act
&ASCII
) && !brk
) {
chr
= shift
[dt
] ; } else {
if (caps
&& (chr
>= 'a' && chr
<= 'z')) {
while(inb(0x64)&1 == 0) ;
while (inb(0x60) == (chr | 0x80));
while(inb(0x64)&1 == 1) inb(0x60);A*/
if (c
== 0xaa) { odt
= 0x2a; return (0); }
if (c
== 0xfa) { odt
= 0x7a; return (0); }
if ( (odt
&0x7f) == c
)return(0);
if(odt
== 0) { odt
= c
; return(0); }
/* Enable interrupts and keyboard controller */
while (inb(0x64)&2); outb(0x64,0x60);
while (inb(0x64)&2); outb(0x60,0x4D);
/* Start keyboard stuff RESET */
while (inb(0x64)&2); /* wait input ready */
outb(0x60,0xFF); /* RESET */
while((c
=inb(0x60))!=0xFA) ;
/* While we are here, defeat gatea20 */
while (inb(0x64)&2); /* wait input ready */
while (inb(0x64)&2); /* wait input ready */
if (c
== '\b' || c
== '\177') return(c
);
while (inb(0x64)&2); /* wait input ready */
outb(0x64,0xFE); /* Reset Command */