pm_defs.h

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    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  Software.Distribution@CS.CMU.EDU
   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  * HISTORY
   28  * $Log:        pm_defs.h,v $
   29  * Revision 2.7  91/08/24  11:52:36  af
   30  *      Dropped predefines of frame sizes.
   31  *      [91/08/02  02:16:00  af]
   32  * 
   33  * Revision 2.6  91/06/19  11:54:04  rvb
   34  *      mips->DECSTATION; vax->VAXSTATION
   35  *      [91/06/12  14:01:57  rvb]
   36  * 
   37  *      File moved here from mips/PMAX since it tries to be generic;
   38  *      it is used on the PMAX and the Vax3100.
   39  *      [91/06/04            rvb]
   40  * 
   41  * Revision 2.5  91/05/14  17:25:16  mrt
   42  *      Correcting copyright
   43  * 
   44  * Revision 2.4  91/02/05  17:43:06  mrt
   45  *      Added author notices
   46  *      [91/02/04  11:15:49  mrt]
   47  * 
   48  *      Changed to use new Mach copyright
   49  *      [91/02/02  12:14:35  mrt]
   50  * 
   51  * Revision 2.3  90/12/05  23:33:14  af
   52  *      Cleanups.
   53  *      [90/12/03  23:30:06  af]
   54  * 
   55  * Revision 2.1.1.1  90/11/01  03:36:24  af
   56  *      Created.
   57  *      [90/09/03            af]
   58  */
   59 /*
   60  *      File: pm_defs.h
   61  *      Author: Alessandro Forin, Carnegie Mellon University
   62  *      Date:   9/90
   63  *
   64  *      Definitions specific to the "pm" simple framebuffer driver,
   65  *      exported across sub-modules.  Some other framebuffer drivers
   66  *      that share code with pm use these defs also.
   67  */
   68 
   69 /* Hardware state (to be held in the screen descriptor) */
   70 
   71 typedef struct {
   72         char            *cursor_registers;      /* opaque, for sharing */
   73         unsigned short  cursor_state;           /* some regs are W-only */
   74         short           unused;                 /* padding, free */
   75         char            *vdac_registers;        /* opaque, for sharing */
   76         unsigned char   *framebuffer;
   77         unsigned char   *plane_mask;
   78 } pm_softc_t;
   79 
   80 extern pm_softc_t       *pm_alloc(/* unit, curs, framebuf, planem */);
   81 
   82 /* user mapping sizes */
   83 #define USER_INFO_SIZE  PAGE_SIZE
   84 #define PMASK_SIZE      PAGE_SIZE
   85 #define BITMAP_SIZE(sc)                                         \
   86         ((sc)->frame_height * (((sc)->flags & COLOR_SCREEN) ?   \
   87                 sc->frame_scanline_width :                      \
   88                 sc->frame_scanline_width>>3))
   89 
   90 #define PM_SIZE(sc)     (USER_INFO_SIZE+PMASK_SIZE+BITMAP_SIZE(sc))

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FreeBSD/Linux Kernel Cross Reference sys/chips/pm_defs.h

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sys/chips/pm_defs.h