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/*
* 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
#ifdef XSERVER_LIBPCIACCESS
#include "xf86VGAarbiter.h"
#endif
#ifdef DPMSExtension
static DevPrivateKeyRec DPMSKeyRec;
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 = xf86ScreenToScrn(pScreen);
DPMSPtr pDPMS;
pointer DPMSOpt;
MessageType enabled_from;
DPMSKey = &DPMSKeyRec;
if (!dixRegisterPrivateKey(&DPMSKeyRec, PRIVATE_SCREEN, sizeof(DPMSRec)))
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);
}
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 */
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