xf86DPMS.c (2889B)
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 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 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 }