3bbfe7b179
Tested by at least ajacoutot@, dcoppa@ & jasper@
219 lines
5.9 KiB
C
219 lines
5.9 KiB
C
/*
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* Copyright (c) 1997-2003 by The XFree86 Project, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the name of the copyright holder(s)
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* and author(s) shall not be used in advertising or otherwise to promote
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* the sale, use or other dealings in this Software without prior written
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* authorization from the copyright holder(s) and author(s).
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*/
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/*
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* This file contains the DPMS functions required by the extension.
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*/
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include <X11/X.h>
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#include "os.h"
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#include "globals.h"
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#include "windowstr.h"
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#include "xf86.h"
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#include "xf86Priv.h"
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#ifdef DPMSExtension
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#include <X11/extensions/dpmsconst.h>
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#include "dpmsproc.h"
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#endif
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#ifdef XSERVER_LIBPCIACCESS
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#include "xf86VGAarbiter.h"
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#endif
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#ifdef DPMSExtension
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static DevPrivateKeyRec DPMSKeyRec;
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static DevPrivateKey DPMSKey;
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static Bool DPMSClose(ScreenPtr pScreen);
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static int DPMSCount = 0;
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#endif
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Bool
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xf86DPMSInit(ScreenPtr pScreen, DPMSSetProcPtr set, int flags)
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{
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#ifdef DPMSExtension
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ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
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DPMSPtr pDPMS;
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pointer DPMSOpt;
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MessageType enabled_from;
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DPMSKey = &DPMSKeyRec;
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if (!dixRegisterPrivateKey(&DPMSKeyRec, PRIVATE_SCREEN, sizeof(DPMSRec)))
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return FALSE;
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pDPMS = dixLookupPrivate(&pScreen->devPrivates, DPMSKey);
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pScrn->DPMSSet = set;
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pDPMS->Flags = flags;
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DPMSOpt = xf86FindOption(pScrn->options, "dpms");
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if (DPMSDisabledSwitch) {
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enabled_from = X_CMDLINE;
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DPMSEnabled = FALSE;
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}
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else if (DPMSOpt) {
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enabled_from = X_CONFIG;
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DPMSEnabled = xf86CheckBoolOption(pScrn->options, "dpms", FALSE);
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xf86MarkOptionUsed(DPMSOpt);
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}
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else {
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enabled_from = X_DEFAULT;
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DPMSEnabled = TRUE;
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}
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if (DPMSEnabled)
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xf86DrvMsg(pScreen->myNum, enabled_from, "DPMS enabled\n");
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pDPMS->Enabled = DPMSEnabled;
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pDPMS->CloseScreen = pScreen->CloseScreen;
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pScreen->CloseScreen = DPMSClose;
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DPMSCount++;
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return TRUE;
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#else
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return FALSE;
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#endif
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}
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#ifdef DPMSExtension
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static Bool
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DPMSClose(ScreenPtr pScreen)
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{
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DPMSPtr pDPMS;
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ScrnInfoPtr pScrn;
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/* This shouldn't happen */
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if (DPMSKey == NULL)
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return FALSE;
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pDPMS = dixLookupPrivate(&pScreen->devPrivates, DPMSKey);
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/* This shouldn't happen */
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if (!pDPMS)
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return FALSE;
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pScreen->CloseScreen = pDPMS->CloseScreen;
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pScrn = xf86ScreenToScrn(pScreen);
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/*
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* Turn on DPMS when shutting down. If this function can be used
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* depends on the order the driver wraps things. If this is called
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* after the driver has shut down everything the driver will have
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* to deal with this internally.
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*/
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if (pScrn->vtSema && pScrn->DPMSSet) {
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pScrn->DPMSSet(pScrn, DPMSModeOn, 0);
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}
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if (--DPMSCount == 0)
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DPMSKey = NULL;
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return pScreen->CloseScreen(pScreen);
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}
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static void
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DPMSSetScreen(ScrnInfoPtr pScrn, int level)
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{
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ScreenPtr pScreen = xf86ScrnToScreen(pScrn);
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DPMSPtr pDPMS = dixLookupPrivate(&pScreen->devPrivates, DPMSKey);
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if (pDPMS && pScrn->DPMSSet && pDPMS->Enabled && pScrn->vtSema) {
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xf86VGAarbiterLock(pScrn);
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pScrn->DPMSSet(pScrn, level, 0);
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xf86VGAarbiterUnlock(pScrn);
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}
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}
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/*
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* DPMSSet --
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* Device dependent DPMS mode setting hook. This is called whenever
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* the DPMS mode is to be changed.
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*/
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int
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DPMSSet(ClientPtr client, int level)
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{
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int rc, i;
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DPMSPowerLevel = level;
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if (DPMSKey == NULL)
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return Success;
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if (level != DPMSModeOn) {
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if (xf86IsUnblank(screenIsSaved)) {
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rc = dixSaveScreens(client, SCREEN_SAVER_FORCER, ScreenSaverActive);
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if (rc != Success)
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return rc;
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}
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} else if (!xf86IsUnblank(screenIsSaved)) {
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rc = dixSaveScreens(client, SCREEN_SAVER_FORCER, ScreenSaverReset);
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if (rc != Success)
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return rc;
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}
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/* For each screen, set the DPMS level */
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for (i = 0; i < xf86NumScreens; i++) {
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DPMSSetScreen(xf86Screens[i], level);
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}
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for (i = 0; i < xf86NumGPUScreens; i++) {
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DPMSSetScreen(xf86GPUScreens[i], level);
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}
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return Success;
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}
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static Bool
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DPMSSupportedOnScreen(ScrnInfoPtr pScrn)
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{
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ScreenPtr pScreen = xf86ScrnToScreen(pScrn);
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DPMSPtr pDPMS = dixLookupPrivate(&pScreen->devPrivates, DPMSKey);
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return pDPMS && pScrn->DPMSSet;
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}
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/*
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* DPMSSupported --
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* Return TRUE if any screen supports DPMS.
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*/
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Bool
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DPMSSupported(void)
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{
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int i;
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if (DPMSKey == NULL) {
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return FALSE;
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}
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/* For each screen, check if DPMS is supported */
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for (i = 0; i < xf86NumScreens; i++) {
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if (DPMSSupportedOnScreen(xf86Screens[i]))
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return TRUE;
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}
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for (i = 0; i < xf86NumGPUScreens; i++) {
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if (DPMSSupportedOnScreen(xf86GPUScreens[i]))
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return TRUE;
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}
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return FALSE;
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}
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#endif /* DPMSExtension */
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