/* * Copyright (c) 1997-2003 by The XFree86 Project, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Except as contained in this notice, the name of the copyright holder(s) * and author(s) shall not be used in advertising or otherwise to promote * the sale, use or other dealings in this Software without prior written * authorization from the copyright holder(s) and author(s). */ /* * This file contains the DPMS functions required by the extension. */ #ifdef HAVE_XORG_CONFIG_H #include <xorg-config.h> #endif #include <X11/X.h> #include "os.h" #include "globals.h" #include "xf86.h" #include "xf86Priv.h" #ifdef DPMSExtension #include <X11/extensions/dpmsconst.h> #include "dpmsproc.h" #endif #include "xf86VGAarbiter.h" #ifdef DPMSExtension static int DPMSKeyIndex; static DevPrivateKey DPMSKey; static Bool DPMSClose(int i, ScreenPtr pScreen); static int DPMSCount = 0; #endif Bool xf86DPMSInit(ScreenPtr pScreen, DPMSSetProcPtr set, int flags) { #ifdef DPMSExtension ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum]; DPMSPtr pDPMS; pointer DPMSOpt; MessageType enabled_from; DPMSKey = &DPMSKeyIndex; if (!dixSetPrivate(&pScreen->devPrivates, DPMSKey, xcalloc(sizeof(DPMSRec), 1))) return FALSE; pDPMS = dixLookupPrivate(&pScreen->devPrivates, DPMSKey); pScrn->DPMSSet = set; pDPMS->Flags = flags; DPMSOpt = xf86FindOption(pScrn->options, "dpms"); if (DPMSDisabledSwitch) { enabled_from = X_CMDLINE; DPMSEnabled = FALSE; } else if (DPMSOpt) { enabled_from = X_CONFIG; DPMSEnabled = xf86CheckBoolOption(pScrn->options, "dpms", FALSE); xf86MarkOptionUsed(DPMSOpt); } else { enabled_from = X_DEFAULT; DPMSEnabled = TRUE; } if (DPMSEnabled) xf86DrvMsg(pScreen->myNum, enabled_from, "DPMS enabled\n"); pDPMS->Enabled = DPMSEnabled; pDPMS->CloseScreen = pScreen->CloseScreen; pScreen->CloseScreen = DPMSClose; DPMSCount++; return TRUE; #else return FALSE; #endif } #ifdef DPMSExtension static Bool DPMSClose(int i, ScreenPtr pScreen) { DPMSPtr pDPMS; /* This shouldn't happen */ if (DPMSKey == NULL) return FALSE; pDPMS = dixLookupPrivate(&pScreen->devPrivates, DPMSKey); /* This shouldn't happen */ if (!pDPMS) return FALSE; pScreen->CloseScreen = pDPMS->CloseScreen; /* * Turn on DPMS when shutting down. If this function can be used * depends on the order the driver wraps things. If this is called * after the driver has shut down everything the driver will have * to deal with this internally. */ if (xf86Screens[i]->vtSema && xf86Screens[i]->DPMSSet) { xf86Screens[i]->DPMSSet(xf86Screens[i],DPMSModeOn,0); } xfree(pDPMS); dixSetPrivate(&pScreen->devPrivates, DPMSKey, NULL); if (--DPMSCount == 0) DPMSKey = NULL; return pScreen->CloseScreen(i, pScreen); } /* * DPMSSet -- * Device dependent DPMS mode setting hook. This is called whenever * the DPMS mode is to be changed. */ int DPMSSet(ClientPtr client, int level) { int rc, i; DPMSPtr pDPMS; ScrnInfoPtr pScrn; DPMSPowerLevel = level; if (DPMSKey == NULL) return Success; if (level != DPMSModeOn) { rc = dixSaveScreens(client, SCREEN_SAVER_FORCER, ScreenSaverActive); if (rc != Success) return rc; } /* For each screen, set the DPMS level */ for (i = 0; i < xf86NumScreens; i++) { pScrn = xf86Screens[i]; pDPMS = dixLookupPrivate(&screenInfo.screens[i]->devPrivates, DPMSKey); if (pDPMS && pScrn->DPMSSet && pDPMS->Enabled && pScrn->vtSema) { xf86VGAarbiterLock(pScrn); pScrn->DPMSSet(pScrn, level, 0); xf86VGAarbiterUnlock(pScrn); } } return Success; } /* * DPMSSupported -- * Return TRUE if any screen supports DPMS. */ Bool DPMSSupported(void) { int i; DPMSPtr pDPMS; ScrnInfoPtr pScrn; if (DPMSKey == NULL) { return FALSE; } /* For each screen, check if DPMS is supported */ for (i = 0; i < xf86NumScreens; i++) { pScrn = xf86Screens[i]; pDPMS = dixLookupPrivate(&screenInfo.screens[i]->devPrivates, DPMSKey); if (pDPMS && pScrn->DPMSSet) return TRUE; } return FALSE; } #endif /* DPMSExtension */