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