Mercurial > sdl-ios-xcode

comparison src/video/fbcon/matrox_mmio.h @ 0:74212992fb08

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Initial revision
author Sam Lantinga <slouken@lokigames.com>
date Thu, 26 Apr 2001 16:45:43 +0000
parents
children e8157fcb3114
comparison
equal deleted inserted replaced
-1:000000000000 0:74212992fb08
1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public
7 License as published by the Free Software Foundation; either
8 version 2 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
14
15 You should have received a copy of the GNU Library General Public
16 License along with this library; if not, write to the Free
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18
19 Sam Lantinga
20 slouken@devolution.com
21 */
22
23 #ifdef SAVE_RCSID
24 static char rcsid =
25 "@(#) $Id$";
26 #endif
27
28 /* MGA register definitions */
29
30 #include "matrox_regs.h"
31
32 /* MGA control macros */
33
34 #define mga_in8(reg) *(volatile Uint8 *)(mapped_io + (reg))
35 #define mga_in32(reg) *(volatile Uint32 *)(mapped_io + (reg))
36
37 #define mga_out8(reg,v) *(volatile Uint8 *)(mapped_io + (reg)) = v;
38 #define mga_out32(reg,v) *(volatile Uint32 *)(mapped_io + (reg)) = v;
39
40
41 /* Wait for fifo space */
42 #define mga_wait(space) \
43 { \
44 while ( mga_in8(MGAREG_FIFOSTATUS) < space ) \
45 ; \
46 }
47
48
49 /* Wait for idle accelerator */
50 #define mga_waitidle() \
51 { \
52 while ( mga_in32(MGAREG_STATUS) & 0x10000 ) \
53 ; \
54 }
55