sys/dev/sun/bwtworeg.h

   1 /*      $NetBSD: bwtworeg.h,v 1.1.26.3 2004/09/21 13:33:26 skrll Exp $ */
   2
   3 /*
   4  * Copyright (c) 1992, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * This software was developed by the Computer Systems Engineering group
   8  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
   9  * contributed to Berkeley.
  10  *
  11  * All advertising materials mentioning features or use of this software
  12  * must display the following acknowledgement:
  13  *      This product includes software developed by the University of
  14  *      California, Lawrence Berkeley Laboratory.
  15  *
  16  * Redistribution and use in source and binary forms, with or without
  17  * modification, are permitted provided that the following conditions
  18  * are met:
  19  * 1. Redistributions of source code must retain the above copyright
  20  *    notice, this list of conditions and the following disclaimer.
  21  * 2. Redistributions in binary form must reproduce the above copyright
  22  *    notice, this list of conditions and the following disclaimer in the
  23  *    documentation and/or other materials provided with the distribution.
  24  * 3. Neither the name of the University nor the names of its contributors
  25  *    may be used to endorse or promote products derived from this software
  26  *    without specific prior written permission.
  27  *
  28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  38  * SUCH DAMAGE.
  39  *
  40  *      @(#)bwtworeg.h  8.1 (Berkeley) 6/11/93
  41  */
  42
  43 /*
  44  * bwtwo display registers.
  45  *
  46  * The registers start at offset 0x400000 and repeat every 32 bytes
  47  * (presumably only the low order address lines are decoded).  Video RAM
  48  * starts at offset 0x800000.  We use separate pointers to each so that
  49  * the sparc addressing modes work well.
  50  */
  51 struct bwtworeg {
  52         struct fbcontrol bw_fbc;
  53 };
  54
  55 /* offsets */
  56 #define BWREG_ID        0
  57 #define BWREG_REG       0x400000
  58 #define BWREG_MEM       0x800000
  59
  60 /* same, but for gdb */
  61 struct bwtwo_all {
  62         long    ba_id;                  /* ID = 0xfe010104 on my IPC */
  63         char    ba_xxx0[0x400000-4];
  64         struct  fbcontrol ba_reg;       /* control registers */
  65         char    ba_xxx1[0x400000-32];
  66         char    ba_ram[4096];           /* actually larger */
  67 };