1 /*
2 * Copyright (c) 1997-2003 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 /*
29 * This file contains the DPMS functions required by the extension.
30 */
31
32 #ifdef HAVE_XORG_CONFIG_H
33 #include <xorg-config.h>
34 #endif
35
36 #include <X11/X.h>
37 #include "os.h"
38 #include "globals.h"
39 #include "windowstr.h"
40 #include "xf86.h"
41 #include "xf86Priv.h"
42 #ifdef DPMSExtension
43 #include <X11/extensions/dpmsconst.h>
44 #include "dpmsproc.h"
45 #endif
46 #ifdef XSERVER_LIBPCIACCESS
47 #include "xf86VGAarbiter.h"
48 #endif
49
50 #ifdef DPMSExtension
51 static void
xf86DPMS(ScreenPtr pScreen,int level)52 xf86DPMS(ScreenPtr pScreen, int level)
53 {
54 ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
55 if (pScrn->DPMSSet && pScrn->vtSema) {
56 xf86VGAarbiterLock(pScrn);
57 pScrn->DPMSSet(pScrn, level, 0);
58 xf86VGAarbiterUnlock(pScrn);
59 }
60 }
61 #endif
62
63 Bool
xf86DPMSInit(ScreenPtr pScreen,DPMSSetProcPtr set,int flags)64 xf86DPMSInit(ScreenPtr pScreen, DPMSSetProcPtr set, int flags)
65 {
66 #ifdef DPMSExtension
67 ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
68 void *DPMSOpt;
69 MessageType enabled_from = X_DEFAULT;
70 Bool enabled = TRUE;
71
72 DPMSOpt = xf86FindOption(pScrn->options, "dpms");
73 if (DPMSDisabledSwitch) {
74 enabled_from = X_CMDLINE;
75 enabled = FALSE;
76 }
77 else if (DPMSOpt) {
78 enabled_from = X_CONFIG;
79 enabled = xf86CheckBoolOption(pScrn->options, "dpms", FALSE);
80 xf86MarkOptionUsed(DPMSOpt);
81 }
82 if (enabled) {
83 xf86DrvMsg(pScreen->myNum, enabled_from, "DPMS enabled\n");
84 pScrn->DPMSSet = set;
85 pScreen->DPMS = xf86DPMS;
86 }
87 return TRUE;
88 #else
89 return FALSE;
90 #endif
91 }
92