1 /* 2 * (C) Copyright 2002 ELTEC Elektronik AG 3 * Frank Gottschling <fgottschling@eltec.de> 4 * 5 * See file CREDITS for list of people who contributed to this 6 * project. 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License as 10 * published by the Free Software Foundation; either version 2 of 11 * the License, or (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21 * MA 02111-1307 USA 22 */ 23 24 /* i8042.h - Intel 8042 keyboard driver header */ 25 26 #ifndef _I8042_H_ 27 #define _I8042_H_ 28 29 #ifdef __I386__ 30 #include <common.h> 31 #include <asm/io.h> 32 #define in8(p) inb(p) 33 #define out8(p,v) outb(v,p) 34 #endif 35 36 /* defines */ 37 38 #define I8042_DATA_REG (CFG_ISA_IO + 0x0060) /* keyboard i/o buffer */ 39 #define I8042_STATUS_REG (CFG_ISA_IO + 0x0064) /* keyboard status read */ 40 #define I8042_COMMAND_REG (CFG_ISA_IO + 0x0064) /* keyboard ctrl write */ 41 42 #define KBD_US 0 /* default US layout */ 43 #define KBD_GER 1 /* german layout */ 44 45 #define KBD_TIMEOUT 1000 /* 1 sec */ 46 #define KBD_RESET_TRIES 3 47 48 #define AS 0 /* normal character index */ 49 #define SH 1 /* shift index */ 50 #define CN 2 /* control index */ 51 #define NM 3 /* numeric lock index */ 52 #define AK 4 /* right alt key */ 53 #define CP 5 /* capslock index */ 54 #define ST 6 /* stop output index */ 55 #define EX 7 /* extended code index */ 56 #define ES 8 /* escape and extended code index */ 57 58 #define NORMAL 0x0000 /* normal key */ 59 #define STP 0x0001 /* scroll lock stop output*/ 60 #define NUM 0x0002 /* numeric lock */ 61 #define CAPS 0x0004 /* capslock */ 62 #define SHIFT 0x0008 /* shift */ 63 #define CTRL 0x0010 /* control*/ 64 #define EXT 0x0020 /* extended scan code 0xe0 */ 65 #define ESC 0x0040 /* escape key press */ 66 #define E1 0x0080 /* extended scan code 0xe1 */ 67 #define BRK 0x0100 /* make break flag for keyboard */ 68 #define ALT 0x0200 /* right alt */ 69 70 /* exports */ 71 72 int i8042_kbd_init(void); 73 int i8042_tstc(void); 74 int i8042_getc(void); 75 76 #endif /* _I8042_H_ */ 77