Annotation of Gnu-Mach/chips/dc503.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: dc503.h
        !            28:  *     Author: Alessandro Forin, Carnegie Mellon University
        !            29:  *     Date:   9/90
        !            30:  *
        !            31:  *     Defines for the DEC DC503 Programmable Cursor
        !            32:  */
        !            33: 
        !            34: typedef struct {
        !            35:        volatile unsigned short pcc_cmdr;       /* all regs are wo */
        !            36:        volatile unsigned short pcc_xpos;
        !            37:        volatile unsigned short pcc_ypos;
        !            38:        volatile unsigned short pcc_xmin1;
        !            39:        volatile unsigned short pcc_xmax1;
        !            40:        volatile unsigned short pcc_ymin1;
        !            41:        volatile unsigned short pcc_ymax1;
        !            42:        volatile unsigned short pcc_xmin2;
        !            43:        volatile unsigned short pcc_xmax2;
        !            44:        volatile unsigned short pcc_ymin2;
        !            45:        volatile unsigned short pcc_ymax2;
        !            46:        volatile unsigned short pcc_memory;
        !            47: } dc503_regmap_t;
        !            48: 
        !            49: /*
        !            50:  *     Command register bits
        !            51:  */
        !            52: 
        !            53: #define        DC503_CMD_TEST          0x8000  /* cursor test flip-flop */
        !            54: #define        DC503_CMD_HSHI          0x4000  /* Hor sync polarity */
        !            55: #define        DC503_CMD_VBHI          0x2000  /* Ver blank polarity */
        !            56: #define        DC503_CMD_LODSA         0x1000  /* load sprite array */
        !            57: #define        DC503_CMD_FORG2         0x0800  /* force detector2 to one */
        !            58: #define        DC503_CMD_ENRG2         0x0400  /* enable detector2 */
        !            59: #define        DC503_CMD_FORG1         0x0200  /* force detector1 to one */
        !            60: #define        DC503_CMD_ENRG1         0x0100  /* enable detector1 */
        !            61: #define        DC503_CMD_XHWID         0x0080  /* hair cursor (double) width */
        !            62: #define        DC503_CMD_XHCL1         0x0040  /* hair clip region */
        !            63: #define        DC503_CMD_XHCLP         0x0020  /* clip hair inside region */
        !            64: #define        DC503_CMD_XHAIR         0x0010  /* enable hair cursor */
        !            65: #define        DC503_CMD_FOPB          0x0008  /* force curs plane B to one */
        !            66: #define        DC503_CMD_ENPB          0x0004  /* enable curs plane B */
        !            67: #define        DC503_CMD_FOPA          0x0002  /* force curs plane A to one */
        !            68: #define        DC503_CMD_ENPA          0x0001  /* enable curs plane A */
        !            69: 

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