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8ed0b00fce
Rather than setting up a per-screen private, just conditionally initialize ScrnInfoRec::DPMSSet based on the config options, and inspect that to determine whether DPMS is supported. We also move the "turn the screen back on at CloseScreen" logic into the DPMS extension's (new) reset hook. This would be a behavior change for the non-xfree86 servers, if any of them had non-stub DPMS support. Signed-off-by: Adam Jackson <ajax@redhat.com> Reviewed-by: Eric Anholt <eric@anholt.net>
152 lines
4.2 KiB
C
152 lines
4.2 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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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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void *DPMSOpt;
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MessageType enabled_from = X_DEFAULT;
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Bool enabled = TRUE;
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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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enabled = FALSE;
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}
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else if (DPMSOpt) {
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enabled_from = X_CONFIG;
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enabled = xf86CheckBoolOption(pScrn->options, "dpms", FALSE);
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xf86MarkOptionUsed(DPMSOpt);
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}
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if (enabled) {
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xf86DrvMsg(pScreen->myNum, enabled_from, "DPMS enabled\n");
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pScrn->DPMSSet = set;
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}
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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 void
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DPMSSetScreen(ScrnInfoPtr pScrn, int level)
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{
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if (pScrn->DPMSSet && 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 (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_OFF, 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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return pScrn->DPMSSet != NULL;
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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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/* 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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