From f07a4c844da9f0ecae5bbee1ab94be56505f26f7 Mon Sep 17 00:00:00 2001 From: Thomas Bushnell Date: Tue, 25 Feb 1997 21:28:37 +0000 Subject: Initial source --- chips/bt431.h | 78 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 chips/bt431.h (limited to 'chips/bt431.h') diff --git a/chips/bt431.h b/chips/bt431.h new file mode 100644 index 0000000..d98b08d --- /dev/null +++ b/chips/bt431.h @@ -0,0 +1,78 @@ +/* + * Mach Operating System + * Copyright (c) 1991,1990,1989 Carnegie Mellon University + * All Rights Reserved. + * + * Permission to use, copy, modify and distribute this software and its + * documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR + * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie Mellon + * the rights to redistribute these changes. + */ +/* + * File: bt431.h + * Author: Alessandro Forin, Carnegie Mellon University + * Date: 8/91 + * + * Defines for the bt431 Cursor chip + */ + + +typedef struct { + volatile unsigned char addr_lo; + volatile unsigned char addr_hi; + volatile unsigned char addr_cmap; + volatile unsigned char addr_reg; +} bt431_regmap_t; + +/* + * Additional registers addressed indirectly + */ + +#define BT431_REG_CMD 0x0000 +#define BT431_REG_CXLO 0x0001 +#define BT431_REG_CXHI 0x0002 +#define BT431_REG_CYLO 0x0003 +#define BT431_REG_CYHI 0x0004 +#define BT431_REG_WXLO 0x0005 +#define BT431_REG_WXHI 0x0006 +#define BT431_REG_WYLO 0x0007 +#define BT431_REG_WYHI 0x0008 +#define BT431_REG_WWLO 0x0009 +#define BT431_REG_WWHI 0x000a +#define BT431_REG_WHLO 0x000b +#define BT431_REG_WHHI 0x000c + +#define BT431_REG_CRAM_BASE 0x0000 +#define BT431_REG_CRAM_END 0x01ff + +/* + * Command register + */ + +#define BT431_CMD_CURS_ENABLE 0x40 +#define BT431_CMD_XHAIR_ENABLE 0x20 +#define BT431_CMD_OR_CURSORS 0x10 +#define BT431_CMD_AND_CURSORS 0x00 +#define BT431_CMD_1_1_MUX 0x00 +#define BT431_CMD_4_1_MUX 0x04 +#define BT431_CMD_5_1_MUX 0x08 +#define BT431_CMD_xxx_MUX 0x0c +#define BT431_CMD_THICK_1 0x00 +#define BT431_CMD_THICK_3 0x01 +#define BT431_CMD_THICK_5 0x02 +#define BT431_CMD_THICK_7 0x03 -- cgit v1.2.3