Annotation of sys/arch/sparc/dev/bwtworeg.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: bwtworeg.h,v 1.4 2003/06/02 23:27:53 millert Exp $ */
2: /* $NetBSD: bwtworeg.h,v 1.3 1996/02/27 00:32:39 pk Exp $ */
3:
4: /*
5: * Copyright (c) 1992, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * This software was developed by the Computer Systems Engineering group
9: * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
10: * contributed to Berkeley.
11: *
12: * All advertising materials mentioning features or use of this software
13: * must display the following acknowledgement:
14: * This product includes software developed by the University of
15: * California, Lawrence Berkeley Laboratory.
16: *
17: * Redistribution and use in source and binary forms, with or without
18: * modification, are permitted provided that the following conditions
19: * are met:
20: * 1. Redistributions of source code must retain the above copyright
21: * notice, this list of conditions and the following disclaimer.
22: * 2. Redistributions in binary form must reproduce the above copyright
23: * notice, this list of conditions and the following disclaimer in the
24: * documentation and/or other materials provided with the distribution.
25: * 3. Neither the name of the University nor the names of its contributors
26: * may be used to endorse or promote products derived from this software
27: * without specific prior written permission.
28: *
29: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
30: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
33: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39: * SUCH DAMAGE.
40: *
41: * @(#)bwtworeg.h 8.1 (Berkeley) 6/11/93
42: */
43:
44: /*
45: * bwtwo display registers.
46: *
47: * The registers start at offset 0x400000 and repeat every 32 bytes
48: * (presumably only the low order address lines are decoded). Video RAM
49: * starts at offset 0x800000. We use separate pointers to each so that
50: * the sparc addressing modes work well.
51: */
52: struct bwtworeg {
53: struct fbcontrol bw_fbc;
54: };
55:
56: /* offsets */
57: #define BWREG_ID 0
58: #define BWREG_REG 0x400000
59: #define BWREG_MEM 0x800000
60:
61: /* same, but for gdb */
62: struct bwtwo_all {
63: long ba_id; /* ID = 0xfe010104 on my IPC */
64: char ba_xxx0[0x400000-4];
65: struct fbcontrol ba_reg; /* control registers */
66: char ba_xxx1[0x400000-32];
67: char ba_ram[4096]; /* actually larger */
68: };
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