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Diffstat (limited to 'u-boot/include/i8042.h')
| -rw-r--r-- | u-boot/include/i8042.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/u-boot/include/i8042.h b/u-boot/include/i8042.h new file mode 100644 index 0000000..1395289 --- /dev/null +++ b/u-boot/include/i8042.h @@ -0,0 +1,76 @@ +/* + * (C) Copyright 2002 ELTEC Elektronik AG + * Frank Gottschling <fgottschling@eltec.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program 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 2 of + * the License, or (at your option) any later version. + * + * This program 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 this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* i8042.h - Intel 8042 keyboard driver header */ + +#ifndef _I8042_H_ +#define _I8042_H_ + +#ifdef __I386__ +#include <common.h> +#include <asm/io.h> +#define in8(p) inb(p) +#define out8(p,v) outb(v,p) +#endif + +/* defines */ + +#define I8042_DATA_REG (CONFIG_SYS_ISA_IO + 0x0060) /* keyboard i/o buffer */ +#define I8042_STATUS_REG (CONFIG_SYS_ISA_IO + 0x0064) /* keyboard status read */ +#define I8042_COMMAND_REG (CONFIG_SYS_ISA_IO + 0x0064) /* keyboard ctrl write */ + +#define KBD_US 0 /* default US layout */ +#define KBD_GER 1 /* german layout */ + +#define KBD_TIMEOUT 1000 /* 1 sec */ +#define KBD_RESET_TRIES 3 + +#define AS 0 /* normal character index */ +#define SH 1 /* shift index */ +#define CN 2 /* control index */ +#define NM 3 /* numeric lock index */ +#define AK 4 /* right alt key */ +#define CP 5 /* capslock index */ +#define ST 6 /* stop output index */ +#define EX 7 /* extended code index */ +#define ES 8 /* escape and extended code index */ + +#define NORMAL 0x0000 /* normal key */ +#define STP 0x0001 /* scroll lock stop output*/ +#define NUM 0x0002 /* numeric lock */ +#define CAPS 0x0004 /* capslock */ +#define SHIFT 0x0008 /* shift */ +#define CTRL 0x0010 /* control*/ +#define EXT 0x0020 /* extended scan code 0xe0 */ +#define ESC 0x0040 /* escape key press */ +#define E1 0x0080 /* extended scan code 0xe1 */ +#define BRK 0x0100 /* make break flag for keyboard */ +#define ALT 0x0200 /* right alt */ + +/* exports */ + +int i8042_kbd_init(void); +int i8042_tstc(void); +int i8042_getc(void); + +#endif /* _I8042_H_ */ |