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Annotation of Gnu-Mach/chips/bt431.h, revision 1.1.1.1

1.1       root        1: /* 
                      2:  * Mach Operating System
                      3:  * Copyright (c) 1991,1990,1989 Carnegie Mellon University
                      4:  * All Rights Reserved.
                      5:  * 
                      6:  * Permission to use, copy, modify and distribute this software and its
                      7:  * documentation is hereby granted, provided that both the copyright
                      8:  * notice and this permission notice appear in all copies of the
                      9:  * software, derivative works or modified versions, and any portions
                     10:  * thereof, and that both notices appear in supporting documentation.
                     11:  * 
                     12:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
                     13:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
                     14:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
                     15:  * 
                     16:  * Carnegie Mellon requests users of this software to return to
                     17:  * 
                     18:  *  Software Distribution Coordinator  or  [email protected]
                     19:  *  School of Computer Science
                     20:  *  Carnegie Mellon University
                     21:  *  Pittsburgh PA 15213-3890
                     22:  * 
                     23:  * any improvements or extensions that they make and grant Carnegie Mellon
                     24:  * the rights to redistribute these changes.
                     25:  */
                     26: /*
                     27:  *     File: bt431.h
                     28:  *     Author: Alessandro Forin, Carnegie Mellon University
                     29:  *     Date:   8/91
                     30:  *
                     31:  *     Defines for the bt431 Cursor chip
                     32:  */
                     33: 
                     34: 
                     35: typedef struct {
                     36:        volatile unsigned char  addr_lo;
                     37:        volatile unsigned char  addr_hi;
                     38:        volatile unsigned char  addr_cmap;
                     39:        volatile unsigned char  addr_reg;
                     40: } bt431_regmap_t;
                     41: 
                     42: /*
                     43:  * Additional registers addressed indirectly
                     44:  */
                     45: 
                     46: #define        BT431_REG_CMD           0x0000
                     47: #define        BT431_REG_CXLO          0x0001
                     48: #define        BT431_REG_CXHI          0x0002
                     49: #define        BT431_REG_CYLO          0x0003
                     50: #define        BT431_REG_CYHI          0x0004
                     51: #define        BT431_REG_WXLO          0x0005
                     52: #define        BT431_REG_WXHI          0x0006
                     53: #define        BT431_REG_WYLO          0x0007
                     54: #define        BT431_REG_WYHI          0x0008
                     55: #define        BT431_REG_WWLO          0x0009
                     56: #define        BT431_REG_WWHI          0x000a
                     57: #define        BT431_REG_WHLO          0x000b
                     58: #define        BT431_REG_WHHI          0x000c
                     59: 
                     60: #define BT431_REG_CRAM_BASE    0x0000
                     61: #define BT431_REG_CRAM_END     0x01ff
                     62: 
                     63: /*
                     64:  * Command register
                     65:  */
                     66: 
                     67: #define BT431_CMD_CURS_ENABLE  0x40
                     68: #define BT431_CMD_XHAIR_ENABLE 0x20
                     69: #define BT431_CMD_OR_CURSORS   0x10
                     70: #define BT431_CMD_AND_CURSORS  0x00
                     71: #define BT431_CMD_1_1_MUX      0x00
                     72: #define BT431_CMD_4_1_MUX      0x04
                     73: #define BT431_CMD_5_1_MUX      0x08
                     74: #define BT431_CMD_xxx_MUX      0x0c
                     75: #define BT431_CMD_THICK_1      0x00
                     76: #define BT431_CMD_THICK_3      0x01
                     77: #define BT431_CMD_THICK_5      0x02
                     78: #define BT431_CMD_THICK_7      0x03

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