1 /*
2 * Copyright (c) 1993-2003 by The XFree86 Project, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Except as contained in this notice, the name of the copyright holder(s)
23 * and author(s) shall not be used in advertising or otherwise to promote
24 * the sale, use or other dealings in this Software without prior written
25 * authorization from the copyright holder(s) and author(s).
26 */
27
28 #ifdef HAVE_XORG_CONFIG_H
29 #include <xorg-config.h>
30 #endif
31
32 #include <X11/X.h>
33 #include "input.h"
34 #include "scrnintstr.h"
35
36 #include "xf86.h"
37 #include "xf86Priv.h"
38 #include "xf86_OSlib.h"
39 #include "xf86OSpriv.h"
40
41 /*
42 * This file contains the common part of the video memory mapping functions
43 */
44
45 static VidMemInfo vidMemInfo = { FALSE, };
46
47 void
xf86InitVidMem(void)48 xf86InitVidMem(void)
49 {
50 if (!vidMemInfo.initialised) {
51 memset(&vidMemInfo, 0, sizeof(VidMemInfo));
52 xf86OSInitVidMem(&vidMemInfo);
53 }
54 }
55