Initial revision

[oweals/u-boot.git] / include / i8042.h

diff --git a/include/i8042.h b/include/i8042.h
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+/*
+ * (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_
+
+/* defines */
+
+#define I8042_DATA_REG      (CFG_ISA_IO + 0x0060)    /* keyboard i/o buffer */
+#define I8042_STATUS_REG    (CFG_ISA_IO + 0x0064)    /* keyboard status read */
+#define I8042_COMMAND_REG   (CFG_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_ */