xserver git update 15/5/2010

1 files changed, 2588 insertions, 2588 deletions

diff --git a/xorg-server/hw/xfree86/common/xf86Helper.c b/xorg-server/hw/xfree86/common/xf86Helper.c
index 1cc1526c9..4cc543fc4 100644
--- a/xorg-server/hw/xfree86/common/xf86Helper.c
+++ b/xorg-server/hw/xfree86/common/xf86Helper.c
@@ -1,2588 +1,2588 @@
-/*
- * 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).
- */
-
-/*
- * Authors: Dirk Hohndel <hohndel@XFree86.Org>
- *          David Dawes <dawes@XFree86.Org>
- *          ... and others
- *
- * This file includes the helper functions that the server provides for
- * different drivers.
- */
-
-#ifdef HAVE_XORG_CONFIG_H
-#include <xorg-config.h>
-#endif
-
-#include <pciaccess.h>
-#include "Pci.h"
-
-#include <X11/X.h>
-#include "os.h"
-#include "servermd.h"
-#include "pixmapstr.h"
-#include "windowstr.h"
-#include "propertyst.h"
-#include "gcstruct.h"
-#include "loaderProcs.h"
-#include "xf86.h"
-#include "xf86Priv.h"
-#include "xf86_OSlib.h"
-#include "micmap.h"
-#include "xf86DDC.h"
-#include "xf86Xinput.h"
-#include "xf86InPriv.h"
-#include "mivalidate.h"
-#include "xf86Bus.h"
-#include "xf86Crtc.h"
-
-/* For xf86GetClocks */
-#if defined(CSRG_BASED) || defined(__GNU__)
-#define HAS_SETPRIORITY
-#include <sys/resource.h>
-#endif
-
-static int xf86ScrnInfoPrivateCount = 0;
-
-
-/* Add a pointer to a new DriverRec to xf86DriverList */
-
-void
-xf86AddDriver(DriverPtr driver, pointer module, int flags)
-{
-    /* Don't add null entries */
-    if (!driver)
-	return;
-
-    if (xf86DriverList == NULL)
-	xf86NumDrivers = 0;
-
-    xf86NumDrivers++;
-    xf86DriverList = xnfrealloc(xf86DriverList,
-				xf86NumDrivers * sizeof(DriverPtr));
-    xf86DriverList[xf86NumDrivers - 1] = xnfalloc(sizeof(DriverRec));
-    if (flags & HaveDriverFuncs)
-	*xf86DriverList[xf86NumDrivers - 1] = *driver;
-    else {
-	(void) memset( xf86DriverList[xf86NumDrivers - 1], 0,
-		       sizeof( DriverRec ) );
-	(void) memcpy( xf86DriverList[xf86NumDrivers - 1], driver,
-		       sizeof(DriverRec1));
-
-    }
-    xf86DriverList[xf86NumDrivers - 1]->module = module;
-    xf86DriverList[xf86NumDrivers - 1]->refCount = 0;
-}
-
-void
-xf86DeleteDriver(int drvIndex)
-{
-    if (xf86DriverList[drvIndex]
-	&& (!xf86DriverHasEntities(xf86DriverList[drvIndex]))) {
-	if (xf86DriverList[drvIndex]->module)
-	    UnloadModule(xf86DriverList[drvIndex]->module);
-	xfree(xf86DriverList[drvIndex]);
-	xf86DriverList[drvIndex] = NULL;
-    }
-}
-
-/* Add a pointer to a new InputDriverRec to xf86InputDriverList */
-
-void
-xf86AddInputDriver(InputDriverPtr driver, pointer module, int flags)
-{
-    /* Don't add null entries */
-    if (!driver)
-	return;
-
-    if (xf86InputDriverList == NULL)
-	xf86NumInputDrivers = 0;
-
-    xf86NumInputDrivers++;
-    xf86InputDriverList = xnfrealloc(xf86InputDriverList,
-				xf86NumInputDrivers * sizeof(InputDriverPtr));
-    xf86InputDriverList[xf86NumInputDrivers - 1] =
-				xnfalloc(sizeof(InputDriverRec));
-    *xf86InputDriverList[xf86NumInputDrivers - 1] = *driver;
-    xf86InputDriverList[xf86NumInputDrivers - 1]->module = module;
-    xf86InputDriverList[xf86NumInputDrivers - 1]->refCount = 0;
-}
-
-void
-xf86DeleteInputDriver(int drvIndex)
-{
-    if (xf86InputDriverList[drvIndex] && xf86InputDriverList[drvIndex]->module)
-	UnloadModule(xf86InputDriverList[drvIndex]->module);
-    xfree(xf86InputDriverList[drvIndex]);
-    xf86InputDriverList[drvIndex] = NULL;
-}
-
-InputDriverPtr
-xf86LookupInputDriver(const char *name)
-{
-    int i;
-
-    for (i = 0; i < xf86NumInputDrivers; i++) {
-       if (xf86InputDriverList[i] && xf86InputDriverList[i]->driverName &&
-           xf86NameCmp(name, xf86InputDriverList[i]->driverName) == 0)
-           return xf86InputDriverList[i];
-    }
-    return NULL;
-}
-
-InputInfoPtr
-xf86LookupInput(const char *name)
-{
-    InputInfoPtr p;
-
-    for (p = xf86InputDevs; p != NULL; p = p->next) {
-        if (strcmp(name, p->name) == 0)
-            return p;
-    }
-
-    return NULL;
-}
-
-/* Allocate a new ScrnInfoRec in xf86Screens */
-
-ScrnInfoPtr
-xf86AllocateScreen(DriverPtr drv, int flags)
-{
-    int i;
-
-    if (xf86Screens == NULL)
-	xf86NumScreens = 0;
-
-    i = xf86NumScreens++;
-    xf86Screens = xnfrealloc(xf86Screens, xf86NumScreens * sizeof(ScrnInfoPtr));
-    xf86Screens[i] = xnfcalloc(sizeof(ScrnInfoRec), 1);
-    xf86Screens[i]->scrnIndex = i;	/* Changes when a screen is removed */
-    xf86Screens[i]->origIndex = i;	/* This never changes */
-    xf86Screens[i]->privates = xnfcalloc(sizeof(DevUnion),
-					 xf86ScrnInfoPrivateCount);
-    /*
-     * EnableDisableFBAccess now gets initialized in InitOutput()
-     * xf86Screens[i]->EnableDisableFBAccess = xf86EnableDisableFBAccess;
-     */
-
-    xf86Screens[i]->drv = drv;
-    drv->refCount++;
-    xf86Screens[i]->module = DuplicateModule(drv->module, NULL);
-
-    xf86Screens[i]->DriverFunc = drv->driverFunc;
-
-    return xf86Screens[i];
-}
-
-
-/*
- * Remove an entry from xf86Screens.  Ideally it should free all allocated
- * data.  To do this properly may require a driver hook.
- */
-
-void
-xf86DeleteScreen(int scrnIndex, int flags)
-{
-    ScrnInfoPtr pScrn;
-    int i;
-
-    /* First check if the screen is valid */
-    if (xf86NumScreens == 0 || xf86Screens == NULL)
-	return;
-
-    if (scrnIndex > xf86NumScreens - 1)
-	return;
-
-    if (!(pScrn = xf86Screens[scrnIndex]))
-	return;
-
-    /* If a FreeScreen function is defined, call it here */
-    if (pScrn->FreeScreen != NULL)
-	pScrn->FreeScreen(scrnIndex, 0);
-
-    while (pScrn->modes)
-	xf86DeleteMode(&pScrn->modes, pScrn->modes);
-
-    while (pScrn->modePool)
-	xf86DeleteMode(&pScrn->modePool, pScrn->modePool);
-
-    xf86OptionListFree(pScrn->options);
-
-    if (pScrn->module)
-	UnloadModule(pScrn->module);
-
-    if (pScrn->drv)
-	pScrn->drv->refCount--;
-
-    if (pScrn->privates)
-	xfree(pScrn->privates);
-
-    xf86ClearEntityListForScreen(scrnIndex);
-
-    xfree(pScrn);
-
-    /* Move the other entries down, updating their scrnIndex fields */
-
-    xf86NumScreens--;
-
-    for (i = scrnIndex; i < xf86NumScreens; i++) {
-	xf86Screens[i] = xf86Screens[i + 1];
-	xf86Screens[i]->scrnIndex = i;
-	/* Also need to take care of the screen layout settings */
-    }
-}
-
-/*
- * Allocate a private in ScrnInfoRec.
- */
-
-int
-xf86AllocateScrnInfoPrivateIndex(void)
-{
-    int idx, i;
-    ScrnInfoPtr pScr;
-    DevUnion *nprivs;
-
-    idx = xf86ScrnInfoPrivateCount++;
-    for (i = 0; i < xf86NumScreens; i++) {
-	pScr = xf86Screens[i];
-	nprivs = xnfrealloc(pScr->privates,
-			    xf86ScrnInfoPrivateCount * sizeof(DevUnion));
-	/* Zero the new private */
-	bzero(&nprivs[idx], sizeof(DevUnion));
-	pScr->privates = nprivs;
-    }
-    return idx;
-}
-
-/* Allocate a new InputInfoRec and append it to the tail of xf86InputDevs. */
-InputInfoPtr
-xf86AllocateInput(InputDriverPtr drv, int flags)
-{
-    InputInfoPtr new, *prev = NULL;
-
-    if (!(new = xcalloc(sizeof(InputInfoRec), 1)))
-	return NULL;
-
-    new->drv = drv;
-    drv->refCount++;
-    new->module = DuplicateModule(drv->module, NULL);
-
-    for (prev = &xf86InputDevs; *prev; prev = &(*prev)->next)
-        ;
-
-    *prev = new;
-    new->next = NULL;
-
-    return new;
-}
-
-
-/*
- * Remove an entry from xf86InputDevs.  Ideally it should free all allocated
- * data.  To do this properly may require a driver hook.
- */
-
-void
-xf86DeleteInput(InputInfoPtr pInp, int flags)
-{
-    InputInfoPtr p;
-
-    /* First check if the inputdev is valid. */
-    if (pInp == NULL)
-	return;
-
-#if 0
-    /* If a free function is defined, call it here. */
-    if (pInp->free)
-	pInp->free(pInp, 0);
-#endif
-
-    if (pInp->module)
-	UnloadModule(pInp->module);
-
-    if (pInp->drv)
-	pInp->drv->refCount--;
-
-    /* This should *really* be handled in drv->UnInit(dev) call instead, but
-     * if the driver forgets about it make sure we free it or at least crash
-     * with flying colors */
-    if (pInp->private)
-	xfree(pInp->private);
-
-    /* Remove the entry from the list. */
-    if (pInp == xf86InputDevs)
-	xf86InputDevs = pInp->next;
-    else {
-	p = xf86InputDevs;
-	while (p && p->next != pInp)
-	    p = p->next;
-	if (p)
-	    p->next = pInp->next;
-	/* Else the entry wasn't in the xf86InputDevs list (ignore this). */
-    }
-    xfree(pInp);
-}
-
-Bool
-xf86AddPixFormat(ScrnInfoPtr pScrn, int depth, int bpp, int pad)
-{
-    int i;
-
-    if (pScrn->numFormats >= MAXFORMATS)
-	return FALSE;
-
-    if (bpp <= 0) {
-	if (depth == 1)
-	    bpp = 1;
-	else if (depth <= 8)
-	    bpp = 8;
-	else if (depth <= 16)
-	    bpp = 16;
-	else if (depth <= 32)
-	    bpp = 32;
-	else
-	    return FALSE;
-    }
-    if (pad <= 0)
-	pad = BITMAP_SCANLINE_PAD;
-
-    i = pScrn->numFormats++;
-    pScrn->formats[i].depth = depth;
-    pScrn->formats[i].bitsPerPixel = bpp;
-    pScrn->formats[i].scanlinePad = pad;
-    return TRUE;
-}
-
-/*
- * Set the depth we are using based on (in the following order of preference):
- *  - values given on the command line
- *  - values given in the config file
- *  - values provided by the driver
- *  - an overall default when nothing else is given
- *
- * Also find a Display subsection matching the depth/bpp found.
- *
- * Sets the following ScrnInfoRec fields:
- *     bitsPerPixel, pixmap24, depth, display, imageByteOrder,
- *     bitmapScanlinePad, bitmapScanlineUnit, bitmapBitOrder, numFormats,
- *     formats, fbFormat.
- */
-
-/* Can the screen handle 24 bpp pixmaps */
-#define DO_PIX24(f) ((f & Support24bppFb) || \
-		     ((f & Support32bppFb) && (f & SupportConvert24to32)))
-
-/* Can the screen handle 32 bpp pixmaps */
-#define DO_PIX32(f) ((f & Support32bppFb) || \
-		     ((f & Support24bppFb) && (f & SupportConvert32to24)))
-
-/* Does the screen prefer 32bpp fb for 24bpp pixmaps */
-#define CHOOSE32FOR24(f) ((f & Support32bppFb) && (f & SupportConvert24to32) \
-			  && (f & PreferConvert24to32))
-
-/* Does the screen prefer 24bpp fb for 32bpp pixmaps */
-#define CHOOSE24FOR32(f) ((f & Support24bppFb) && (f & SupportConvert32to24) \
-			  && (f & PreferConvert32to24))
-
-/* Can the screen handle 32bpp pixmaps for 24bpp fb */
-#define DO_PIX32FOR24(f) ((f & Support24bppFb) && (f & SupportConvert32to24))
-
-/* Can the screen handle 24bpp pixmaps for 32bpp fb */
-#define DO_PIX24FOR32(f) ((f & Support32bppFb) && (f & SupportConvert24to32))
-
-#ifndef GLOBAL_DEFAULT_DEPTH
-#define GLOBAL_DEFAULT_DEPTH 24
-#endif
-
-Bool
-xf86SetDepthBpp(ScrnInfoPtr scrp, int depth, int dummy, int fbbpp,
-		int depth24flags)
-{
-    int i;
-    DispPtr disp;
-    Pix24Flags pix24 = xf86Info.pixmap24;
-    Bool nomatch = FALSE;
-
-    scrp->bitsPerPixel = -1;
-    scrp->depth = -1;
-    scrp->pixmap24 = Pix24DontCare;
-    scrp->bitsPerPixelFrom = X_DEFAULT;
-    scrp->depthFrom = X_DEFAULT;
-
-    if (xf86FbBpp > 0) {
-	scrp->bitsPerPixel = xf86FbBpp;
-	scrp->bitsPerPixelFrom = X_CMDLINE;
-    }
-
-    if (xf86Depth > 0) {
-	scrp->depth = xf86Depth;
-	scrp->depthFrom = X_CMDLINE;
-    }
-
-    if (xf86FbBpp < 0 && xf86Depth < 0) {
-	if (scrp->confScreen->defaultfbbpp > 0) {
-	    scrp->bitsPerPixel = scrp->confScreen->defaultfbbpp;
-	    scrp->bitsPerPixelFrom = X_CONFIG;
-	}
-	if (scrp->confScreen->defaultdepth > 0) {
-	    scrp->depth = scrp->confScreen->defaultdepth;
-	    scrp->depthFrom = X_CONFIG;
-	}
-
-	if (scrp->confScreen->defaultfbbpp <= 0 &&
-	    scrp->confScreen->defaultdepth <= 0) {
-	    /*
-	     * Check for DefaultDepth and DefaultFbBpp options in the
-	     * Device sections.
-	     */
-	    int i;
-	    GDevPtr device;
-	    Bool found = FALSE;
-
-	    for (i = 0; i < scrp->numEntities; i++) {
-		device = xf86GetDevFromEntity(scrp->entityList[i],
-					      scrp->entityInstanceList[i]);
-		if (device && device->options) {
-		    if (xf86FindOption(device->options, "DefaultDepth")) {
-			scrp->depth = xf86SetIntOption(device->options,
-						       "DefaultDepth", -1);
-			scrp->depthFrom = X_CONFIG;
-			found = TRUE;
-		    }
-		    if (xf86FindOption(device->options, "DefaultFbBpp")) {
-			scrp->bitsPerPixel = xf86SetIntOption(device->options,
-							      "DefaultFbBpp",
-							      -1);
-			scrp->bitsPerPixelFrom = X_CONFIG;
-			found = TRUE;
-		    }
-		}
-		if (found)
-		    break;
-	    }
-	}
-    }
-
-    /* If none of these is set, pick a default */
-    if (scrp->bitsPerPixel < 0 && scrp->depth < 0) {
-        if (fbbpp > 0 || depth > 0) {
-	    if (fbbpp > 0)
-		scrp->bitsPerPixel = fbbpp;
-	    if (depth > 0)
-		scrp->depth = depth;
-	} else {
-	    scrp->depth = GLOBAL_DEFAULT_DEPTH;
-	}
-    }
-
-    /* If any are not given, determine a default for the others */
-
-    if (scrp->bitsPerPixel < 0) {
-	/* The depth must be set */
-	if (scrp->depth > -1) {
-	    if (scrp->depth == 1)
-		scrp->bitsPerPixel = 1;
-	    else if (scrp->depth <= 4)
-		scrp->bitsPerPixel = 4;
-	    else if (scrp->depth <= 8)
-		scrp->bitsPerPixel = 8;
-	    else if (scrp->depth <= 16)
-		scrp->bitsPerPixel = 16;
-	    else if (scrp->depth <= 24) {
-		/*
-		 * Figure out if a choice is possible based on the depth24
-		 * and pix24 flags.
-		 */
-		/* Check pix24 first */
-		if (pix24 != Pix24DontCare) {
-		    if (pix24 == Pix24Use32) {
-			if (DO_PIX32(depth24flags)) {
-			    if (CHOOSE24FOR32(depth24flags))
-				scrp->bitsPerPixel = 24;
-			    else
-				scrp->bitsPerPixel = 32;
-			} else {
-			    nomatch = TRUE;
-			}
-		    } else if (pix24 == Pix24Use24) {
-			if (DO_PIX24(depth24flags)) {
-			    if (CHOOSE32FOR24(depth24flags))
-				scrp->bitsPerPixel = 32;
-			    else
-				scrp->bitsPerPixel = 24;
-			} else {
-			    nomatch = TRUE;
-			}
-		    }
-		} else {
-		    if (DO_PIX32(depth24flags)) {
-			if (CHOOSE24FOR32(depth24flags))
-			    scrp->bitsPerPixel = 24;
-			else
-			    scrp->bitsPerPixel = 32;
-		    } else if (DO_PIX24(depth24flags)) {
-			if (CHOOSE32FOR24(depth24flags))
-			    scrp->bitsPerPixel = 32;
-			else
-			    scrp->bitsPerPixel = 24;
-		    }
-		}
-	    } else if (scrp->depth <= 32)
-		scrp->bitsPerPixel = 32;
-	    else {
-		xf86DrvMsg(scrp->scrnIndex, X_ERROR,
-			   "Specified depth (%d) is greater than 32\n",
-			   scrp->depth);
-		return FALSE;
-	    }
-	} else {
-	    xf86DrvMsg(scrp->scrnIndex, X_ERROR,
-			"xf86SetDepthBpp: internal error: depth and fbbpp"
-			" are both not set\n");
-	    return FALSE;
-	}
-	if (scrp->bitsPerPixel < 0) {
-	    if (nomatch)
-		xf86DrvMsg(scrp->scrnIndex, X_ERROR,
-			"Driver can't support depth 24 pixmap format (%d)\n",
-			PIX24TOBPP(pix24));
-	    else if ((depth24flags & (Support24bppFb | Support32bppFb)) ==
-		     NoDepth24Support)
-		xf86DrvMsg(scrp->scrnIndex, X_ERROR,
-			"Driver can't support depth 24\n");
-	    else
-		xf86DrvMsg(scrp->scrnIndex, X_ERROR,
-			"Can't find fbbpp for depth 24\n");
-	    return FALSE;
-	}
-	scrp->bitsPerPixelFrom = X_PROBED;
-    }
-
-    if (scrp->depth <= 0) {
-	/* bitsPerPixel is already set */
-	switch (scrp->bitsPerPixel) {
-	case 32:
-	    scrp->depth = 24;
-	    break;
-	default:
-	    /* 1, 4, 8, 16 and 24 */
-	    scrp->depth = scrp->bitsPerPixel;
-	    break;
-	}
-	scrp->depthFrom = X_PROBED;
-    }
-
-    /* Sanity checks */
-    if (scrp->depth < 1 || scrp->depth > 32) {
-	xf86DrvMsg(scrp->scrnIndex, X_ERROR,
-		   "Specified depth (%d) is not in the range 1-32\n",
-		    scrp->depth);
-	return FALSE;
-    }
-    switch (scrp->bitsPerPixel) {
-    case 1:
-    case 4:
-    case 8:
-    case 16:
-    case 24:
-    case 32:
-	break;
-    default:
-	xf86DrvMsg(scrp->scrnIndex, X_ERROR,
-		   "Specified fbbpp (%d) is not a permitted value\n",
-		   scrp->bitsPerPixel);
-	return FALSE;
-    }
-    if (scrp->depth > scrp->bitsPerPixel) {
-	xf86DrvMsg(scrp->scrnIndex, X_ERROR,
-		   "Specified depth (%d) is greater than the fbbpp (%d)\n",
-		   scrp->depth, scrp->bitsPerPixel);
-	return FALSE;
-    }
-
-    /* set scrp->pixmap24 if the driver isn't flexible */
-    if (scrp->bitsPerPixel == 24 && !DO_PIX32FOR24(depth24flags)) {
-	scrp->pixmap24 = Pix24Use24;
-    }
-    if (scrp->bitsPerPixel == 32 && !DO_PIX24FOR32(depth24flags)) {
-	scrp->pixmap24 = Pix24Use32;
-    }
-
-    /*
-     * Find the Display subsection matching the depth/fbbpp and initialise
-     * scrp->display with it.
-     */
-    for (i = 0, disp = scrp->confScreen->displays;
-	 i < scrp->confScreen->numdisplays; i++, disp++) {
-	if ((disp->depth == scrp->depth && disp->fbbpp == scrp->bitsPerPixel)
-	    || (disp->depth == scrp->depth && disp->fbbpp <= 0)
-	    || (disp->fbbpp == scrp->bitsPerPixel && disp->depth <= 0)) {
-	    scrp->display = disp;
-	    break;
-	}
-    }
-
-    /*
-     * If an exact match can't be found, see if there is one with no
-     * depth or fbbpp specified.
-     */
-    if (i == scrp->confScreen->numdisplays) {
-	for (i = 0, disp = scrp->confScreen->displays;
-	     i < scrp->confScreen->numdisplays; i++, disp++) {
-	    if (disp->depth <= 0 && disp->fbbpp <= 0) {
-		scrp->display = disp;
-		break;
-	    }
-	}
-    }
-
-    /*
-     * If all else fails, create a default one.
-     */
-    if (i == scrp->confScreen->numdisplays) {
-	scrp->confScreen->numdisplays++;
-	scrp->confScreen->displays =
-		xnfrealloc(scrp->confScreen->displays,
-			   scrp->confScreen->numdisplays * sizeof(DispRec));
-	xf86DrvMsg(scrp->scrnIndex, X_INFO,
-		   "Creating default Display subsection in Screen section\n"
-		   "\t\"%s\" for depth/fbbpp %d/%d\n",
-		   scrp->confScreen->id, scrp->depth, scrp->bitsPerPixel);
-	memset(&scrp->confScreen->displays[i], 0, sizeof(DispRec));
-	scrp->confScreen->displays[i].blackColour.red = -1;
-	scrp->confScreen->displays[i].blackColour.green = -1;
-	scrp->confScreen->displays[i].blackColour.blue = -1;
-	scrp->confScreen->displays[i].whiteColour.red = -1;
-	scrp->confScreen->displays[i].whiteColour.green = -1;
-	scrp->confScreen->displays[i].whiteColour.blue = -1;
-	scrp->confScreen->displays[i].defaultVisual = -1;
-	scrp->confScreen->displays[i].modes = xnfalloc(sizeof(char *));
-	scrp->confScreen->displays[i].modes[0] = NULL;
-	scrp->confScreen->displays[i].depth = depth;
-	scrp->confScreen->displays[i].fbbpp = fbbpp;
-	scrp->display = &scrp->confScreen->displays[i];
-    }
-
-    /*
-     * Setup defaults for the display-wide attributes the framebuffer will
-     * need.  These defaults should eventually be set globally, and not
-     * dependent on the screens.
-     */
-    scrp->imageByteOrder = IMAGE_BYTE_ORDER;
-    scrp->bitmapScanlinePad = BITMAP_SCANLINE_PAD;
-    if (scrp->depth < 8) {
-	/* Planar modes need these settings */
-	scrp->bitmapScanlineUnit = 8;
-	scrp->bitmapBitOrder = MSBFirst;
-    } else {
-	scrp->bitmapScanlineUnit = BITMAP_SCANLINE_UNIT;
-	scrp->bitmapBitOrder = BITMAP_BIT_ORDER;
-    }
-
-    /*
-     * If an unusual depth is required, add it to scrp->formats.  The formats
-     * for the common depths are handled globally in InitOutput
-     */
-    switch (scrp->depth) {
-    case 1:
-    case 4:
-    case 8:
-    case 15:
-    case 16:
-    case 24:
-	/* Common depths.  Nothing to do for them */
-	break;
-    default:
-	if (!xf86AddPixFormat(scrp, scrp->depth, 0, 0)) {
-	    xf86DrvMsg(scrp->scrnIndex, X_ERROR,
-		       "Can't add pixmap format for depth %d\n", scrp->depth);
-	    return FALSE;
-	}
-    }
-
-    /* Initialise the framebuffer format for this screen */
-    scrp->fbFormat.depth = scrp->depth;
-    scrp->fbFormat.bitsPerPixel = scrp->bitsPerPixel;
-    scrp->fbFormat.scanlinePad = BITMAP_SCANLINE_PAD;
-
-    return TRUE;
-}
-
-/*
- * Print out the selected depth and bpp.
- */
-void
-xf86PrintDepthBpp(ScrnInfoPtr scrp)
-{
-    xf86DrvMsg(scrp->scrnIndex, scrp->depthFrom, "Depth %d, ", scrp->depth);
-    xf86Msg(scrp->bitsPerPixelFrom, "framebuffer bpp %d\n", scrp->bitsPerPixel);
-}
-
-/*
- * xf86SetWeight sets scrp->weight, scrp->mask, scrp->offset, and for depths
- * greater than MAX_PSEUDO_DEPTH also scrp->rgbBits.
- */
-Bool
-xf86SetWeight(ScrnInfoPtr scrp, rgb weight, rgb mask)
-{
-    MessageType weightFrom = X_DEFAULT;
-
-    scrp->weight.red = 0;
-    scrp->weight.green = 0;
-    scrp->weight.blue = 0;
-
-    if (xf86Weight.red > 0 && xf86Weight.green > 0 && xf86Weight.blue > 0) {
-	scrp->weight = xf86Weight;
-	weightFrom = X_CMDLINE;
-    } else if (scrp->display->weight.red > 0 && scrp->display->weight.green > 0
-	       && scrp->display->weight.blue > 0) {
-	scrp->weight = scrp->display->weight;
-	weightFrom = X_CONFIG;
-    } else if (weight.red > 0 && weight.green > 0 && weight.blue > 0) {
-	scrp->weight = weight;
-    } else {
-	switch (scrp->depth) {
-	case 1:
-	case 4:
-	case 8:
-	    scrp->weight.red = scrp->weight.green =
-		scrp->weight.blue = scrp->rgbBits;
-	    break;
-	case 15:
-	    scrp->weight.red = scrp->weight.green = scrp->weight.blue = 5;
-	    break;
-	case 16:
-	    scrp->weight.red = scrp->weight.blue = 5;
-	    scrp->weight.green = 6;
-	    break;
-	case 24:
-	    scrp->weight.red = scrp->weight.green = scrp->weight.blue = 8;
-	    break;
-	case 30:
-	    scrp->weight.red = scrp->weight.green = scrp->weight.blue = 10;
-	    break;
-	}
-    }
-
-    if (scrp->weight.red)
-	xf86DrvMsg(scrp->scrnIndex, weightFrom, "RGB weight %d%d%d\n",
-		   (int)scrp->weight.red, (int)scrp->weight.green,
-		   (int)scrp->weight.blue);
-
-    if (scrp->depth > MAX_PSEUDO_DEPTH &&
-	(scrp->depth != scrp->weight.red + scrp->weight.green +
-			scrp->weight.blue)) {
-	xf86DrvMsg(scrp->scrnIndex, X_ERROR,
-		   "Weight given (%d%d%d) is inconsistent with the "
-		   "depth (%d)\n",
-		   (int)scrp->weight.red, (int)scrp->weight.green,
-		   (int)scrp->weight.blue, scrp->depth);
-	return FALSE;
-    }
-    if (scrp->depth > MAX_PSEUDO_DEPTH && scrp->weight.red) {
-	/*
-	 * XXX Does this even mean anything for TrueColor visuals?
-	 * If not, we shouldn't even be setting it here.  However, this
-	 * matches the behaviour of 3.x versions of XFree86.
-	 */
-	scrp->rgbBits = scrp->weight.red;
-	if (scrp->weight.green > scrp->rgbBits)
-	    scrp->rgbBits = scrp->weight.green;
-	if (scrp->weight.blue > scrp->rgbBits)
-	    scrp->rgbBits = scrp->weight.blue;
-    }
-
-    /* Set the mask and offsets */
-    if (mask.red == 0 || mask.green == 0 || mask.blue == 0) {
-	/* Default to a setting common to PC hardware */
-	scrp->offset.red = scrp->weight.green + scrp->weight.blue;
-	scrp->offset.green = scrp->weight.blue;
-	scrp->offset.blue = 0;
-	scrp->mask.red = ((1 << scrp->weight.red) - 1) << scrp->offset.red;
-	scrp->mask.green = ((1 << scrp->weight.green) - 1)
-				<< scrp->offset.green;
-	scrp->mask.blue = (1 << scrp->weight.blue) - 1;
-    } else {
-	/* Initialise to the values passed */
-	scrp->mask.red = mask.red;
-	scrp->mask.green = mask.green;
-	scrp->mask.blue = mask.blue;
-	scrp->offset.red = ffs(mask.red);
-	scrp->offset.green = ffs(mask.green);
-	scrp->offset.blue = ffs(mask.blue);
-    }
-    return TRUE;
-}
-
-Bool
-xf86SetDefaultVisual(ScrnInfoPtr scrp, int visual)
-{
-    MessageType visualFrom = X_DEFAULT;
-
-    if (defaultColorVisualClass >= 0) {
-	scrp->defaultVisual = defaultColorVisualClass;
-	visualFrom = X_CMDLINE;
-    } else if (scrp->display->defaultVisual >= 0) {
-	scrp->defaultVisual = scrp->display->defaultVisual;
-	visualFrom = X_CONFIG;
-    } else if (visual >= 0) {
-	scrp->defaultVisual = visual;
-    } else {
-	if (scrp->depth == 1)
-	    scrp->defaultVisual = StaticGray;
-	else if (scrp->depth == 4)
-	    scrp->defaultVisual = StaticColor;
-	else if (scrp->depth <= MAX_PSEUDO_DEPTH)
-	    scrp->defaultVisual = PseudoColor;
-	else
-	    scrp->defaultVisual = TrueColor;
-    }
-    switch (scrp->defaultVisual) {
-    case StaticGray:
-    case GrayScale:
-    case StaticColor:
-    case PseudoColor:
-    case TrueColor:
-    case DirectColor:
-	xf86DrvMsg(scrp->scrnIndex, visualFrom, "Default visual is %s\n",
-		   xf86VisualNames[scrp->defaultVisual]);
-	    return TRUE;
-    default:
-
-	xf86DrvMsg(scrp->scrnIndex, X_ERROR,
-		   "Invalid default visual class (%d)\n", scrp->defaultVisual);
-	return FALSE;
-    }
-}
-
-#define TEST_GAMMA(g) \
-	(g).red > GAMMA_ZERO || (g).green > GAMMA_ZERO || (g).blue > GAMMA_ZERO
-
-#define SET_GAMMA(g) \
-	(g) > GAMMA_ZERO ? (g) : 1.0
-
-Bool
-xf86SetGamma(ScrnInfoPtr scrp, Gamma gamma)
-{
-    MessageType from = X_DEFAULT;
-#if 0
-    xf86MonPtr DDC = (xf86MonPtr)(scrp->monitor->DDC);
-#endif
-    if (TEST_GAMMA(xf86Gamma)) {
-	from = X_CMDLINE;
-	scrp->gamma.red = SET_GAMMA(xf86Gamma.red);
-	scrp->gamma.green = SET_GAMMA(xf86Gamma.green);
-	scrp->gamma.blue = SET_GAMMA(xf86Gamma.blue);
-    } else if (TEST_GAMMA(scrp->monitor->gamma)) {
-	from = X_CONFIG;
-	scrp->gamma.red = SET_GAMMA(scrp->monitor->gamma.red);
-	scrp->gamma.green = SET_GAMMA(scrp->monitor->gamma.green);
-	scrp->gamma.blue = SET_GAMMA(scrp->monitor->gamma.blue);
-#if 0
-    } else if ( DDC && DDC->features.gamma > GAMMA_ZERO ) {
-        from = X_PROBED;
-	scrp->gamma.red = SET_GAMMA(DDC->features.gamma);
-	scrp->gamma.green = SET_GAMMA(DDC->features.gamma);
-	scrp->gamma.blue = SET_GAMMA(DDC->features.gamma);
-	/* EDID structure version 2 gives optional seperate red, green & blue gamma values
-	 * in bytes 0x57-0x59 */
-#endif
-    } else if (TEST_GAMMA(gamma)) {
-	scrp->gamma.red = SET_GAMMA(gamma.red);
-	scrp->gamma.green = SET_GAMMA(gamma.green);
-	scrp->gamma.blue = SET_GAMMA(gamma.blue);
-    } else {
-	scrp->gamma.red = 1.0;
-	scrp->gamma.green = 1.0;
-	scrp->gamma.blue = 1.0;
-    }
-    /* Pretend we succeeded if we support better a gamma system.
-     * This avoids a confusing message.
-     */
-    if (xf86_crtc_supports_gamma(scrp))
-	return TRUE;
-    xf86DrvMsg(scrp->scrnIndex, from,
-	       "Using gamma correction (%.1f, %.1f, %.1f)\n",
-	       scrp->gamma.red, scrp->gamma.green, scrp->gamma.blue);
-
-    return TRUE;
-}
-
-#undef TEST_GAMMA
-#undef SET_GAMMA
-
-
-/*
- * Set the DPI from the command line option.  XXX should allow it to be
- * calculated from the widthmm/heightmm values.
- */
-
-#undef MMPERINCH
-#define MMPERINCH 25.4
-
-void
-xf86SetDpi(ScrnInfoPtr pScrn, int x, int y)
-{
-    MessageType from = X_DEFAULT;
-    xf86MonPtr DDC = (xf86MonPtr)(pScrn->monitor->DDC);
-    int ddcWidthmm, ddcHeightmm;
-    int widthErr, heightErr;
-
-    /* XXX Maybe there is no need for widthmm/heightmm in ScrnInfoRec */
-    pScrn->widthmm = pScrn->monitor->widthmm;
-    pScrn->heightmm = pScrn->monitor->heightmm;
-
-    if (DDC && (DDC->features.hsize > 0 && DDC->features.vsize > 0) ) {
-      /* DDC gives display size in mm for individual modes,
-       * but cm for monitor
-       */
-      ddcWidthmm = DDC->features.hsize * 10; /* 10mm in 1cm */
-      ddcHeightmm = DDC->features.vsize * 10; /* 10mm in 1cm */
-    } else {
-      ddcWidthmm = ddcHeightmm = 0;
-    }
-
-    if (monitorResolution > 0) {
-	pScrn->xDpi = monitorResolution;
-	pScrn->yDpi = monitorResolution;
-	from = X_CMDLINE;
-    } else if (pScrn->widthmm > 0 || pScrn->heightmm > 0) {
-	from = X_CONFIG;
-	if (pScrn->widthmm > 0) {
-	   pScrn->xDpi =
-		(int)((double)pScrn->virtualX * MMPERINCH / pScrn->widthmm);
-	}
-	if (pScrn->heightmm > 0) {
-	   pScrn->yDpi =
-		(int)((double)pScrn->virtualY * MMPERINCH / pScrn->heightmm);
-	}
-	if (pScrn->xDpi > 0 && pScrn->yDpi <= 0)
-	    pScrn->yDpi = pScrn->xDpi;
-	if (pScrn->yDpi > 0 && pScrn->xDpi <= 0)
-	    pScrn->xDpi = pScrn->yDpi;
-	xf86DrvMsg(pScrn->scrnIndex, from, "Display dimensions: (%d, %d) mm\n",
-		   pScrn->widthmm, pScrn->heightmm);
-
-	/* Warn if config and probe disagree about display size */
-	if ( ddcWidthmm && ddcHeightmm ) {
-	  if (pScrn->widthmm > 0) {
-	    widthErr  = abs(ddcWidthmm  - pScrn->widthmm);
-	  } else {
-	    widthErr  = 0;
-	  }
-	  if (pScrn->heightmm > 0) {
-	    heightErr = abs(ddcHeightmm - pScrn->heightmm);
-	  } else {
-	    heightErr = 0;
-	  }
-	  if (widthErr>10 || heightErr>10) {
-	    /* Should include config file name for monitor here */
-	    xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
-		       "Probed monitor is %dx%d mm, using Displaysize %dx%d mm\n",
-		       ddcWidthmm,ddcHeightmm, pScrn->widthmm,pScrn->heightmm);
-	  }
-	}
-    } else if ( ddcWidthmm && ddcHeightmm ) {
-	from = X_PROBED;
-	xf86DrvMsg(pScrn->scrnIndex, from, "Display dimensions: (%d, %d) mm\n",
-		   ddcWidthmm, ddcHeightmm );
-	pScrn->widthmm = ddcWidthmm;
-	pScrn->heightmm = ddcHeightmm;
-	if (pScrn->widthmm > 0) {
-	   pScrn->xDpi =
-		(int)((double)pScrn->virtualX * MMPERINCH / pScrn->widthmm);
-	}
-	if (pScrn->heightmm > 0) {
-	   pScrn->yDpi =
-		(int)((double)pScrn->virtualY * MMPERINCH / pScrn->heightmm);
-	}
-	if (pScrn->xDpi > 0 && pScrn->yDpi <= 0)
-	    pScrn->yDpi = pScrn->xDpi;
-	if (pScrn->yDpi > 0 && pScrn->xDpi <= 0)
-	    pScrn->xDpi = pScrn->yDpi;
-    } else {
-	if (x > 0)
-	    pScrn->xDpi = x;
-	else
-	    pScrn->xDpi = DEFAULT_DPI;
-	if (y > 0)
-	    pScrn->yDpi = y;
-	else
-	    pScrn->yDpi = DEFAULT_DPI;
-    }
-    xf86DrvMsg(pScrn->scrnIndex, from, "DPI set to (%d, %d)\n",
-	       pScrn->xDpi, pScrn->yDpi);
-}
-
-#undef MMPERINCH
-
-
-void
-xf86SetBlackWhitePixels(ScreenPtr pScreen)
-{
-    if (xf86FlipPixels) {
-	pScreen->whitePixel = 0;
-	pScreen->blackPixel = 1;
-    } else {
-	pScreen->whitePixel = 1;
-	pScreen->blackPixel = 0;
-    }
-}
-
-/*
- * xf86SetRootClip --
- *	Enable or disable rendering to the screen by
- *	setting the root clip list and revalidating
- *	all of the windows
- */
-
-static void
-xf86SetRootClip (ScreenPtr pScreen, Bool enable)
-{
-    WindowPtr	pWin = WindowTable[pScreen->myNum];
-    WindowPtr	pChild;
-    Bool	WasViewable = (Bool)(pWin->viewable);
-    Bool	anyMarked = FALSE;
-    WindowPtr   pLayerWin;
-    BoxRec	box;
-
-    if (WasViewable)
-    {
-	for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib)
-	{
-	    (void) (*pScreen->MarkOverlappedWindows)(pChild,
-						     pChild,
-						     &pLayerWin);
-	}
-	(*pScreen->MarkWindow) (pWin);
-	anyMarked = TRUE;
-	if (pWin->valdata)
-	{
-	    if (HasBorder (pWin))
-	    {
-		RegionPtr	borderVisible;
-
-		borderVisible = REGION_CREATE(pScreen, NullBox, 1);
-		REGION_SUBTRACT(pScreen, borderVisible,
-				&pWin->borderClip, &pWin->winSize);
-		pWin->valdata->before.borderVisible = borderVisible;
-	    }
-	    pWin->valdata->before.resized = TRUE;
-	}
-    }
-
-    /*
-     * Use REGION_BREAK to avoid optimizations in ValidateTree
-     * that assume the root borderClip can't change well, normally
-     * it doesn't...)
-     */
-    if (enable)
-    {
-	box.x1 = 0;
-	box.y1 = 0;
-	box.x2 = pScreen->width;
-	box.y2 = pScreen->height;
-	REGION_INIT (pScreen, &pWin->winSize, &box, 1);
-	REGION_INIT (pScreen, &pWin->borderSize, &box, 1);
-	if (WasViewable)
-	    REGION_RESET(pScreen, &pWin->borderClip, &box);
-	pWin->drawable.width = pScreen->width;
-	pWin->drawable.height = pScreen->height;
-        REGION_BREAK (pWin->drawable.pScreen, &pWin->clipList);
-    }
-    else
-    {
-	REGION_EMPTY(pScreen, &pWin->borderClip);
-	REGION_BREAK (pWin->drawable.pScreen, &pWin->clipList);
-    }
-
-    ResizeChildrenWinSize (pWin, 0, 0, 0, 0);
-
-    if (WasViewable)
-    {
-	if (pWin->firstChild)
-	{
-	    anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin->firstChild,
-							   pWin->firstChild,
-							   (WindowPtr *)NULL);
-	}
-	else
-	{
-	    (*pScreen->MarkWindow) (pWin);
-	    anyMarked = TRUE;
-	}
-
-
-	if (anyMarked)
-	    (*pScreen->ValidateTree)(pWin, NullWindow, VTOther);
-    }
-
-    if (WasViewable)
-    {
-	if (anyMarked)
-	    (*pScreen->HandleExposures)(pWin);
-	if (anyMarked && pScreen->PostValidateTree)
-	    (*pScreen->PostValidateTree)(pWin, NullWindow, VTOther);
-    }
-    if (pWin->realized)
-	WindowsRestructured ();
-    FlushAllOutput ();
-}
-
-/*
- * Function to enable/disable access to the frame buffer
- *
- * This is used when VT switching and when entering/leaving DGA direct mode.
- *
- * This has been rewritten again to eliminate the saved pixmap.  The
- * devPrivate field in the screen pixmap is set to NULL to catch code
- * accidentally referencing the frame buffer while the X server is not
- * supposed to touch it.
- *
- * Here, we exchange the pixmap private data, rather than the pixmaps
- * themselves to avoid having to find and change any references to the screen
- * pixmap such as GC's, window privates etc.  This also means that this code
- * does not need to know exactly how the pixmap pixels are accessed.  Further,
- * this exchange is >not< done through the screen's ModifyPixmapHeader()
- * vector.  This means the called frame buffer code layers can determine
- * whether they are switched in or out by keeping track of the root pixmap's
- * private data, and therefore don't need to access pScrnInfo->vtSema.
- */
-void
-xf86EnableDisableFBAccess(int scrnIndex, Bool enable)
-{
-    ScrnInfoPtr pScrnInfo = xf86Screens[scrnIndex];
-    ScreenPtr pScreen = pScrnInfo->pScreen;
-    PixmapPtr pspix;
-
-    pspix = (*pScreen->GetScreenPixmap) (pScreen);
-    if (enable)
-    {
-	/*
-	 * Restore the screen pixmap devPrivate field
-	 */
-	pspix->devPrivate = pScrnInfo->pixmapPrivate;
-	/*
-	 * Restore all of the clip lists on the screen
-	 */
-	if (!xf86Resetting)
-	    xf86SetRootClip (pScreen, TRUE);
-
-    }
-    else
-    {
-	/*
-	 * Empty all of the clip lists on the screen
-	 */
-	xf86SetRootClip (pScreen, FALSE);
-	/*
-	 * save the screen pixmap devPrivate field and
-	 * replace it with NULL so accidental references
-	 * to the frame buffer are caught
-	 */
-	pScrnInfo->pixmapPrivate = pspix->devPrivate;
-	pspix->devPrivate.ptr = NULL;
-    }
-}
-
-/* Print driver messages in the standard format */
-
-#undef PREFIX_SIZE
-#define PREFIX_SIZE 14
-
-void
-xf86VDrvMsgVerb(int scrnIndex, MessageType type, int verb, const char *format,
-		va_list args)
-{
-    char *tmpFormat;
-
-    /* Prefix the scrnIndex name to the format string. */
-    if (scrnIndex >= 0 && scrnIndex < xf86NumScreens &&
-	xf86Screens[scrnIndex]->name) {
-	tmpFormat = xalloc(strlen(format) +
-			   strlen(xf86Screens[scrnIndex]->name) +
-			   PREFIX_SIZE + 1);
-	if (!tmpFormat)
-	    return;
-
-	snprintf(tmpFormat, PREFIX_SIZE + 1, "%s(%d): ",
-		 xf86Screens[scrnIndex]->name, scrnIndex);
-
-	strcat(tmpFormat, format);
-	LogVMessageVerb(type, verb, tmpFormat, args);
-	xfree(tmpFormat);
-    } else
-	LogVMessageVerb(type, verb, format, args);
-}
-#undef PREFIX_SIZE
-
-/* Print driver messages, with verbose level specified directly */
-void
-xf86DrvMsgVerb(int scrnIndex, MessageType type, int verb, const char *format,
-	       ...)
-{
-    va_list ap;
-
-    va_start(ap, format);
-    xf86VDrvMsgVerb(scrnIndex, type, verb, format, ap);
-    va_end(ap);
-}
-
-/* Print driver messages, with verbose level of 1 (default) */
-void
-xf86DrvMsg(int scrnIndex, MessageType type, const char *format, ...)
-{
-    va_list ap;
-
-    va_start(ap, format);
-    xf86VDrvMsgVerb(scrnIndex, type, 1, format, ap);
-    va_end(ap);
-}
-
-/* Print non-driver messages with verbose level specified directly */
-void
-xf86MsgVerb(MessageType type, int verb, const char *format, ...)
-{
-    va_list ap;
-
-    va_start(ap, format);
-    xf86VDrvMsgVerb(-1, type, verb, format, ap);
-    va_end(ap);
-}
-
-/* Print non-driver messages with verbose level of 1 (default) */
-void
-xf86Msg(MessageType type, const char *format, ...)
-{
-    va_list ap;
-
-    va_start(ap, format);
-    xf86VDrvMsgVerb(-1, type, 1, format, ap);
-    va_end(ap);
-}
-
-/* Just like ErrorF, but with the verbose level checked */
-void
-xf86ErrorFVerb(int verb, const char *format, ...)
-{
-    va_list ap;
-
-    va_start(ap, format);
-    if (xf86Verbose >= verb || xf86LogVerbose >= verb)
-	LogVWrite(verb, format, ap);
-    va_end(ap);
-}
-
-/* Like xf86ErrorFVerb, but with an implied verbose level of 1 */
-void
-xf86ErrorF(const char *format, ...)
-{
-    va_list ap;
-
-    va_start(ap, format);
-    if (xf86Verbose >= 1 || xf86LogVerbose >= 1)
-	LogVWrite(1, format, ap);
-    va_end(ap);
-}
-
-
-void
-xf86LogInit(void)
-{
-    char *lf = NULL;
-
-#define LOGSUFFIX ".log"
-#define LOGOLDSUFFIX ".old"
-
-    /* Get the log file name */
-    if (xf86LogFileFrom == X_DEFAULT) {
-	/* Append the display number and ".log" */
-	lf = malloc(strlen(xf86LogFile) + strlen("%s") +
-		    strlen(LOGSUFFIX) + 1);
-	if (!lf)
-	    FatalError("Cannot allocate space for the log file name\n");
-	sprintf(lf, "%s%%s" LOGSUFFIX, xf86LogFile);
-	xf86LogFile = lf;
-    }
-
-    xf86LogFile = LogInit(xf86LogFile, LOGOLDSUFFIX);
-    xf86LogFileWasOpened = TRUE;
-
-    xf86SetVerbosity(xf86Verbose);
-    xf86SetLogVerbosity(xf86LogVerbose);
-
-#undef LOGSUFFIX
-#undef LOGOLDSUFFIX
-
-    free(lf);
-}
-
-void
-xf86CloseLog(void)
-{
-    LogClose();
-}
-
-
-/*
- * Drivers can use these for using their own SymTabRecs.
- */
-
-const char *
-xf86TokenToString(SymTabPtr table, int token)
-{
-    int i;
-
-    for (i = 0; table[i].token >= 0 && table[i].token != token; i++)
-	;
-
-    if (table[i].token < 0)
-	return NULL;
-    else
-	return(table[i].name);
-}
-
-int
-xf86StringToToken(SymTabPtr table, const char *string)
-{
-    int i;
-
-    if (string == NULL)
-	return -1;
-
-    for (i = 0; table[i].token >= 0 && xf86NameCmp(string, table[i].name); i++)
-	;
-
-    return(table[i].token);
-}
-
-/*
- * helper to display the clocks found on a card
- */
-void
-xf86ShowClocks(ScrnInfoPtr scrp, MessageType from)
-{
-    int j;
-
-    xf86DrvMsg(scrp->scrnIndex, from, "Pixel clocks available:");
-    for (j=0; j < scrp->numClocks; j++) {
-	if ((j % 4) == 0) {
-	    xf86ErrorF("\n");
-	    xf86DrvMsg(scrp->scrnIndex, from, "pixel clocks:");
-	}
-	xf86ErrorF(" %7.3f", (double)scrp->clock[j] / 1000.0);
-    }
-    xf86ErrorF("\n");
-}
-
-
-/*
- * This prints out the driver identify message, including the names of
- * the supported chipsets.
- *
- * XXX This makes assumptions about the line width, etc.  Maybe we could
- * use a more general "pretty print" function for messages.
- */
-void
-xf86PrintChipsets(const char *drvname, const char *drvmsg, SymTabPtr chips)
-{
-    int len, i;
-
-    len = 6 + strlen(drvname) + 2 + strlen(drvmsg) + 2;
-    xf86Msg(X_INFO, "%s: %s:", drvname, drvmsg);
-    for (i = 0; chips[i].name != NULL; i++) {
-	if (i != 0) {
-	    xf86ErrorF(",");
-	    len++;
-	}
-	if (len + 2 + strlen(chips[i].name) < 78) {
-	    xf86ErrorF(" ");
-	    len++;
-	} else {
-	    xf86ErrorF("\n\t");
-	    len = 8;
-	}
-	xf86ErrorF("%s", chips[i].name);
-	len += strlen(chips[i].name);
-    }
-    xf86ErrorF("\n");
-}
-
-
-int
-xf86MatchDevice(const char *drivername, GDevPtr **sectlist)
-{
-    GDevPtr       gdp, *pgdp = NULL;
-    confScreenPtr screensecptr;
-    int i,j;
-
-    if (sectlist)
-	*sectlist = NULL;
-
-    if (xf86DoConfigure && xf86DoConfigurePass1) return 1;
-
-    /*
-     * This is a very important function that matches the device sections
-     * as they show up in the config file with the drivers that the server
-     * loads at run time.
-     *
-     * ChipProbe can call
-     * int xf86MatchDevice(char * drivername, GDevPtr ** sectlist)
-     * with its driver name. The function allocates an array of GDevPtr and
-     * returns this via sectlist and returns the number of elements in
-     * this list as return value. 0 means none found, -1 means fatal error.
-     *
-     * It can figure out which of the Device sections to use for which card
-     * (using things like the Card statement, etc). For single headed servers
-     * there will of course be just one such Device section.
-     */
-    i = 0;
-
-    /*
-     * first we need to loop over all the Screens sections to get to all
-     * 'active' device sections
-     */
-    for (j=0; xf86ConfigLayout.screens[j].screen != NULL; j++) {
-        screensecptr = xf86ConfigLayout.screens[j].screen;
-        if ((screensecptr->device->driver != NULL)
-            && (xf86NameCmp( screensecptr->device->driver,drivername) == 0)
-            && (! screensecptr->device->claimed)) {
-            /*
-             * we have a matching driver that wasn't claimed, yet
-             */
-            pgdp = xnfrealloc(pgdp, (i + 2) * sizeof(GDevPtr));
-            pgdp[i++] = screensecptr->device;
-        }
-    }
-
-    /* Then handle the inactive devices */
-    j = 0;
-    while (xf86ConfigLayout.inactives[j].identifier) {
-	gdp = &xf86ConfigLayout.inactives[j];
-	if (gdp->driver && !gdp->claimed &&
-	    !xf86NameCmp(gdp->driver,drivername)) {
-	    /* we have a matching driver that wasn't claimed yet */
-	    pgdp = xnfrealloc(pgdp, (i + 2) * sizeof(GDevPtr));
-	    pgdp[i++] = gdp;
-	}
-	j++;
-    }
-
-    /*
-     * make the array NULL terminated and return its address
-     */
-    if (i)
-        pgdp[i] = NULL;
-
-    if (sectlist)
-	*sectlist = pgdp;
-    else
-	xfree(pgdp);
-    return i;
-}
-
-static Bool
-pciDeviceHasBars(struct pci_device *pci)
-{
-    int i;
-
-    for (i = 0; i < 6; i++)
-	if (pci->regions[i].size)
-	    return TRUE;
-
-    if (pci->rom_size)
-	return TRUE;
-
-    return FALSE;
-}
-
-struct Inst {
-    struct pci_device *	pci;
-    GDevPtr		dev;
-    Bool		foundHW;  /* PCIid in list of supported chipsets */
-    Bool		claimed;  /* BusID matches with a device section */
-    int 		chip;
-    int 		screen;
-};
-
-
-/**
- * Find set of unclaimed devices matching a given vendor ID.
- *
- * Used by drivers to find as yet unclaimed devices matching the specified
- * vendor ID.
- *
- * \param driverName     Name of the driver.  This is used to find Device
- *                       sections in the config file.
- * \param vendorID       PCI vendor ID of associated devices.  If zero, then
- *                       the true vendor ID must be encoded in the \c PCIid
- *                       fields of the \c PCIchipsets entries.
- * \param chipsets       Symbol table used to associate chipset names with
- *                       PCI IDs.
- * \param devList        List of Device sections parsed from the config file.
- * \param numDevs        Number of entries in \c devList.
- * \param drvp           Pointer the driver's control structure.
- * \param foundEntities  Returned list of entity indicies associated with the
- *                       driver.
- *
- * \returns
- * The number of elements in returned in \c foundEntities on success or zero
- * on failure.
- *
- * \todo
- * This function does a bit more than short description says.  Fill in some
- * more of the details of its operation.
- *
- * \todo
- * The \c driverName parameter is redundant.  It is the same as
- * \c DriverRec::driverName.  In a future version of this function, remove
- * that parameter.
- */
-int
-xf86MatchPciInstances(const char *driverName, int vendorID,
-		      SymTabPtr chipsets, PciChipsets *PCIchipsets,
-		      GDevPtr *devList, int numDevs, DriverPtr drvp,
-		      int **foundEntities)
-{
-    int i,j;
-    struct pci_device * pPci;
-    struct pci_device_iterator *iter;
-    struct Inst *instances = NULL;
-    int numClaimedInstances = 0;
-    int allocatedInstances = 0;
-    int numFound = 0;
-    SymTabRec *c;
-    PciChipsets *id;
-    int *retEntities = NULL;
-
-    *foundEntities = NULL;
-
-
-    /* Each PCI device will contribute at least one entry.  Each device
-     * section can contribute at most one entry.  The sum of the two is
-     * guaranteed to be larger than the maximum possible number of entries.
-     * Do this calculation and memory allocation once now to eliminate the
-     * need for realloc calls inside the loop.
-     */
-    if (!(xf86DoConfigure && xf86DoConfigurePass1)) {
-	unsigned max_entries = numDevs;
-
-	iter = pci_slot_match_iterator_create(NULL);
-	while ((pPci = pci_device_next(iter)) != NULL) {
-	    max_entries++;
-	}
-
-	pci_iterator_destroy(iter);
-	instances = xnfalloc(max_entries * sizeof(struct Inst));
-    }
-
-    iter = pci_slot_match_iterator_create(NULL);
-    while ((pPci = pci_device_next(iter)) != NULL) {
-	unsigned device_class = pPci->device_class;
-	Bool foundVendor = FALSE;
-
-
-	/* Convert the pre-PCI 2.0 device class for a VGA adapter to the
-	 * 2.0 version of the same class.
-	 */
-	if ( device_class == 0x00000101 ) {
-	    device_class = 0x00030000;
-	}
-
-
-	/* Find PCI devices that match the given vendor ID.  The vendor ID is
-	 * either specified explicitly as a parameter to the function or
-	 * implicitly encoded in the high bits of id->PCIid.
-	 *
-	 * The first device with a matching vendor is recorded, even if the
-	 * device ID doesn't match.  This is done because the Device section
-	 * in the xorg.conf file can over-ride the device ID.  A matching PCI
-	 * ID might not be found now, but after the device ID over-ride is
-	 * applied there /might/ be a match.
-	 */
-	for (id = PCIchipsets; id->PCIid != -1; id++) {
-	    const unsigned vendor_id = ((id->PCIid & 0xFFFF0000) >> 16)
-		| vendorID;
-	    const unsigned device_id = (id->PCIid & 0x0000FFFF);
-	    const unsigned match_class = 0x00030000 | id->PCIid;
-
-	    if ((vendor_id == pPci->vendor_id)
-		|| ((vendorID == PCI_VENDOR_GENERIC) && (match_class == device_class))) {
-		if (!foundVendor && (instances != NULL)) {
-		    ++allocatedInstances;
-		    instances[allocatedInstances - 1].pci = pPci;
-		    instances[allocatedInstances - 1].dev = NULL;
-		    instances[allocatedInstances - 1].claimed = FALSE;
-		    instances[allocatedInstances - 1].foundHW = FALSE;
-		    instances[allocatedInstances - 1].screen = 0;
-		}
-
-		foundVendor = TRUE;
-
-		if ( (device_id == pPci->device_id)
-		     || ((vendorID == PCI_VENDOR_GENERIC) 
-			 && (match_class == device_class)) ) {
-		    if ( instances != NULL ) {
-			instances[allocatedInstances - 1].foundHW = TRUE;
-			instances[allocatedInstances - 1].chip = id->numChipset;
-		    }
-
-
-		    if ( xf86DoConfigure && xf86DoConfigurePass1 ) {
-			if (xf86CheckPciSlot(pPci)) {
-			    GDevPtr pGDev = 
-			      xf86AddBusDeviceToConfigure(drvp->driverName,
-							  BUS_PCI, pPci, -1);
-			    if (pGDev) {
-				/* After configure pass 1, chipID and chipRev
-				 * are treated as over-rides, so clobber them
-				 * here.
-				 */
-				pGDev->chipID = -1;
-				pGDev->chipRev = -1;
-			    }
-
-			    numFound++;
-			}
-		    }
-		    else {
-			numFound++;
-		    }
-
-		    break;
-		}
-	    }
-	}
-    }
-
-    pci_iterator_destroy(iter);
-
-
-    /* In "probe only" or "configure" mode (signaled by instances being NULL),
-     * our work is done.  Return the number of detected devices.
-     */
-    if ( instances == NULL ) {
-	return numFound;
-    }
-
-
-    /*
-     * This may be debatable, but if no PCI devices with a matching vendor
-     * type is found, return zero now.  It is probably not desirable to
-     * allow the config file to override this.
-     */
-    if (allocatedInstances <= 0) {
-	xfree(instances);
-	return 0;
-    }
-
-
-    DebugF("%s instances found: %d\n", driverName, allocatedInstances);
-
-   /*
-    * Check for devices that need duplicated instances.  This is required
-    * when there is more than one screen per entity.
-    *
-    * XXX This currently doesn't work for cases where the BusID isn't
-    * specified explicitly in the config file.
-    */
-
-    for (j = 0; j < numDevs; j++) {
-        if (devList[j]->screen > 0 && devList[j]->busID
-	    && *devList[j]->busID) {
-	    for (i = 0; i < allocatedInstances; i++) {
-	        pPci = instances[i].pci;
-	        if (xf86ComparePciBusString(devList[j]->busID, 
-					    PCI_MAKE_BUS( pPci->domain, pPci->bus ),
-					    pPci->dev,
-					    pPci->func)) {
-		    allocatedInstances++;
-		    instances[allocatedInstances - 1] = instances[i];
-		    instances[allocatedInstances - 1].screen =
-		      				devList[j]->screen;
-		    numFound++;
-		    break;
-		}
-	    }
-	}
-    }
-
-    for (i = 0; i < allocatedInstances; i++) {
-	GDevPtr dev = NULL;
-	GDevPtr devBus = NULL;
-
-	pPci = instances[i].pci;
-	for (j = 0; j < numDevs; j++) {
-	    if (devList[j]->busID && *devList[j]->busID) {
-		if (xf86ComparePciBusString(devList[j]->busID, 
-					    PCI_MAKE_BUS( pPci->domain, pPci->bus ),
-					    pPci->dev,
-					    pPci->func) &&
-		    devList[j]->screen == instances[i].screen) {
-
-		    if (devBus)
-                        xf86MsgVerb(X_WARNING,0,
-			    "%s: More than one matching Device section for "
-			    "instances\n\t(BusID: %s) found: %s\n",
-			    driverName, devList[j]->busID,
-			    devList[j]->identifier);
-		    else
-			devBus = devList[j];
-		}
-	    } else {
-		/*
-		 * if device section without BusID is found
-		 * only assign to it to the primary device.
-		 */
-		if (xf86IsPrimaryPci(pPci)) {
-		    xf86Msg(X_PROBED, "Assigning device section with no busID"
-			    " to primary device\n");
-		    if (dev || devBus)
-			xf86MsgVerb(X_WARNING, 0,
-			    "%s: More than one matching Device section "
-			    "found: %s\n", driverName, devList[j]->identifier);
-		    else
-			dev = devList[j];
-		}
-	    }
-	}
-	if (devBus) dev = devBus;  /* busID preferred */
-	if (!dev) {
-	    if (xf86CheckPciSlot(pPci) && pciDeviceHasBars(pPci)) {
-		xf86MsgVerb(X_WARNING, 0, "%s: No matching Device section "
-			    "for instance (BusID PCI:%u@%u:%u:%u) found\n",
-			    driverName, pPci->domain, pPci->bus, pPci->dev,
-			    pPci->func);
-	    }
-	} else {
-	    numClaimedInstances++;
-	    instances[i].claimed = TRUE;
-	    instances[i].dev = dev;
-	}
-    }
-    DebugF("%s instances found: %d\n", driverName, numClaimedInstances);
-    /*
-     * Now check that a chipset or chipID override in the device section
-     * is valid.  Chipset has precedence over chipID.
-     * If chipset is not valid ignore BusSlot completely.
-     */
-    for (i = 0; i < allocatedInstances && numClaimedInstances > 0; i++) {
-	MessageType from = X_PROBED;
-
-	if (!instances[i].claimed) {
-	    continue;
-	}
-	if (instances[i].dev->chipset) {
-	    for (c = chipsets; c->token >= 0; c++) {
-		if (xf86NameCmp(c->name, instances[i].dev->chipset) == 0)
-		    break;
-	    }
-	    if (c->token == -1) {
-		instances[i].claimed = FALSE;
-		numClaimedInstances--;
-		xf86MsgVerb(X_WARNING, 0, "%s: Chipset \"%s\" in Device "
-			    "section \"%s\" isn't valid for this driver\n",
-			    driverName, instances[i].dev->chipset,
-			    instances[i].dev->identifier);
-	    } else {
-		instances[i].chip = c->token;
-
-		for (id = PCIchipsets; id->numChipset >= 0; id++) {
-		    if (id->numChipset == instances[i].chip)
-			break;
-		}
-		if(id->numChipset >=0){
-		    xf86Msg(X_CONFIG,"Chipset override: %s\n",
-			     instances[i].dev->chipset);
-		    from = X_CONFIG;
-		} else {
-		    instances[i].claimed = FALSE;
-		    numClaimedInstances--;
-		    xf86MsgVerb(X_WARNING, 0, "%s: Chipset \"%s\" in Device "
-				"section \"%s\" isn't a valid PCI chipset\n",
-				driverName, instances[i].dev->chipset,
-				instances[i].dev->identifier);
-		}
-	    }
-	} else if (instances[i].dev->chipID > 0) {
-	    for (id = PCIchipsets; id->numChipset >= 0; id++) {
-		if (id->PCIid == instances[i].dev->chipID)
-		    break;
-	    }
-	    if (id->numChipset == -1) {
-		instances[i].claimed = FALSE;
-		numClaimedInstances--;
-		xf86MsgVerb(X_WARNING, 0, "%s: ChipID 0x%04X in Device "
-			    "section \"%s\" isn't valid for this driver\n",
-			    driverName, instances[i].dev->chipID,
-			    instances[i].dev->identifier);
-	    } else {
-		instances[i].chip = id->numChipset;
-
-		xf86Msg( X_CONFIG,"ChipID override: 0x%04X\n",
-			 instances[i].dev->chipID);
-		from = X_CONFIG;
-	    }
-	} else if (!instances[i].foundHW) {
-	    /*
-	     * This means that there was no override and the PCI chipType
-	     * doesn't match one that is supported
-	     */
-	    instances[i].claimed = FALSE;
-	    numClaimedInstances--;
-	}
-	if (instances[i].claimed == TRUE){
-	    for (c = chipsets; c->token >= 0; c++) {
-		if (c->token == instances[i].chip)
-		    break;
-	    }
-	    xf86Msg(from,"Chipset %s found\n",
-		    c->name);
-	}
-    }
-
-    /*
-     * Of the claimed instances, check that another driver hasn't already
-     * claimed its slot.
-     */
-    numFound = 0;
-    for (i = 0; i < allocatedInstances && numClaimedInstances > 0; i++) {
-	
-	if (!instances[i].claimed)
-	    continue;
-	pPci = instances[i].pci;
-
-
-        /*
-	 * Allow the same entity to be used more than once for devices with
-	 * multiple screens per entity.  This assumes implicitly that there
-	 * will be a screen == 0 instance.
-	 *
-	 * XXX Need to make sure that two different drivers don't claim
-	 * the same screen > 0 instance.
-	 */
-        if (instances[i].screen == 0 && !xf86CheckPciSlot( pPci ))
-	    continue;
-
-	DebugF("%s: card at %d:%d:%d is claimed by a Device section\n",
-	       driverName, pPci->bus, pPci->dev, pPci->func);
-
-	/* Allocate an entry in the lists to be returned */
-	numFound++;
-	retEntities = xnfrealloc(retEntities, numFound * sizeof(int));
-	retEntities[numFound - 1] = xf86ClaimPciSlot( pPci, drvp,
-						      instances[i].chip,
-						      instances[i].dev,
-						      instances[i].dev->active);
-        if (retEntities[numFound - 1] == -1 && instances[i].screen > 0) {
-	    for (j = 0; j < xf86NumEntities; j++) {
-	        EntityPtr pEnt = xf86Entities[j];
-	        if (pEnt->bus.type != BUS_PCI)
-		    continue;
-	        if (pEnt->bus.id.pci == pPci) {
-		    retEntities[numFound - 1] = j;
-		    xf86AddDevToEntity(j, instances[i].dev);
-		    break;
-		}
-	    }
-	}
-    }
-    xfree(instances);
-    if (numFound > 0) {
-	*foundEntities = retEntities;
-    }
-	
-    return numFound;
-}
-
-/*
- * xf86GetClocks -- get the dot-clocks via a BIG BAD hack ...
- */
-void
-xf86GetClocks(ScrnInfoPtr pScrn, int num, Bool (*ClockFunc)(ScrnInfoPtr, int),
-	      void (*ProtectRegs)(ScrnInfoPtr, Bool),
-	      void (*BlankScreen)(ScrnInfoPtr, Bool), IOADDRESS vertsyncreg,
-	      int maskval, int knownclkindex, int knownclkvalue)
-{
-    register int status = vertsyncreg;
-    unsigned long i, cnt, rcnt, sync;
-
-    /* First save registers that get written on */
-    (*ClockFunc)(pScrn, CLK_REG_SAVE);
-
-    if (num > MAXCLOCKS)
-	num = MAXCLOCKS;
-
-    for (i = 0; i < num; i++)
-    {
-	if (ProtectRegs)
-	    (*ProtectRegs)(pScrn, TRUE);
-	if (!(*ClockFunc)(pScrn, i))
-	{
-	    pScrn->clock[i] = -1;
-	    continue;
-	}
-	if (ProtectRegs)
-	    (*ProtectRegs)(pScrn, FALSE);
-	if (BlankScreen)
-	    (*BlankScreen)(pScrn, FALSE);
-
-    	usleep(50000);     /* let VCO stabilise */
-
-    	cnt  = 0;
-    	sync = 200000;
-
-	while ((inb(status) & maskval) == 0x00)
-	    if (sync-- == 0) goto finish;
-	/* Something appears to be happening, so reset sync count */
-	sync = 200000;
-	while ((inb(status) & maskval) == maskval)
-	    if (sync-- == 0) goto finish;
-	/* Something appears to be happening, so reset sync count */
-	sync = 200000;
-	while ((inb(status) & maskval) == 0x00)
-	    if (sync-- == 0) goto finish;
-
-	for (rcnt = 0; rcnt < 5; rcnt++)
-	{
-	    while (!(inb(status) & maskval))
-		cnt++;
-	    while ((inb(status) & maskval))
-		cnt++;
-	}
-
-finish:
-	pScrn->clock[i] = cnt ? cnt : -1;
-	if (BlankScreen)
-            (*BlankScreen)(pScrn, TRUE);
-    }
-
-    for (i = 0; i < num; i++)
-    {
-	if (i != knownclkindex)
-	{
-	    if (pScrn->clock[i] == -1)
-	    {
-		pScrn->clock[i] = 0;
-	    }
-	    else
-	    {
-		pScrn->clock[i] = (int)(0.5 +
-                    (((float)knownclkvalue) * pScrn->clock[knownclkindex]) /
-	            (pScrn->clock[i]));
-		/* Round to nearest 10KHz */
-		pScrn->clock[i] += 5;
-		pScrn->clock[i] /= 10;
-		pScrn->clock[i] *= 10;
-	    }
-	}
-    }
-
-    pScrn->clock[knownclkindex] = knownclkvalue;
-    pScrn->numClocks = num;
-
-    /* Restore registers that were written on */
-    (*ClockFunc)(pScrn, CLK_REG_RESTORE);
-}
-
-const char *
-xf86GetVisualName(int visual)
-{
-    if (visual < 0 || visual > DirectColor)
-	return NULL;
-
-    return xf86VisualNames[visual];
-}
-
-
-int
-xf86GetVerbosity(void)
-{
-    return max(xf86Verbose, xf86LogVerbose);
-}
-
-Pix24Flags
-xf86GetPix24(void)
-{
-    return xf86Info.pixmap24;
-}
-
-
-int
-xf86GetDepth(void)
-{
-    return xf86Depth;
-}
-
-
-rgb
-xf86GetWeight(void)
-{
-    return xf86Weight;
-}
-
-
-Gamma
-xf86GetGamma(void)
-{
-    return xf86Gamma;
-}
-
-
-Bool
-xf86GetFlipPixels(void)
-{
-    return xf86FlipPixels;
-}
-
-
-const char *
-xf86GetServerName(void)
-{
-    return xf86ServerName;
-}
-
-
-Bool
-xf86ServerIsExiting(void)
-{
-    return (dispatchException & DE_TERMINATE) == DE_TERMINATE;
-}
-
-
-Bool
-xf86ServerIsResetting(void)
-{
-    return xf86Resetting;
-}
-
-
-Bool
-xf86ServerIsInitialising(void)
-{
-    return xf86Initialising;
-}
-
-
-Bool
-xf86ServerIsOnlyDetecting(void)
-{
-    return xf86DoConfigure;
-}
-
-
-Bool
-xf86CaughtSignal(void)
-{
-    return xf86Info.caughtSignal;
-}
-
-
-Bool
-xf86GetVidModeAllowNonLocal(void)
-{
-    return xf86Info.vidModeAllowNonLocal;
-}
-
-
-Bool
-xf86GetVidModeEnabled(void)
-{
-    return xf86Info.vidModeEnabled;
-}
-
-Bool
-xf86GetModInDevAllowNonLocal(void)
-{
-    return xf86Info.miscModInDevAllowNonLocal;
-}
-
-
-Bool
-xf86GetModInDevEnabled(void)
-{
-    return xf86Info.miscModInDevEnabled;
-}
-
-
-Bool
-xf86GetAllowMouseOpenFail(void)
-{
-    return xf86Info.allowMouseOpenFail;
-}
-
-
-Bool
-xf86IsPc98(void)
-{
-#if SUPPORT_PC98
-    return xf86Info.pc98;
-#else
-    return FALSE;
-#endif
-}
-
-void
-xf86DisableRandR(void)
-{
-    xf86Info.disableRandR = TRUE;
-    xf86Info.randRFrom = X_PROBED;
-}
-
-CARD32
-xf86GetModuleVersion(pointer module)
-{
-    return (CARD32)LoaderGetModuleVersion(module);
-}
-
-pointer
-xf86LoadDrvSubModule(DriverPtr drv, const char *name)
-{
-    pointer ret;
-    int errmaj = 0, errmin = 0;
-
-    ret = LoadSubModule(drv->module, name, NULL, NULL, NULL, NULL,
-			&errmaj, &errmin);
-    if (!ret)
-	LoaderErrorMsg(NULL, name, errmaj, errmin);
-    return ret;
-}
-
-pointer
-xf86LoadSubModule(ScrnInfoPtr pScrn, const char *name)
-{
-    pointer ret;
-    int errmaj = 0, errmin = 0;
-
-    ret = LoadSubModule(pScrn->module, name, NULL, NULL, NULL, NULL,
-			&errmaj, &errmin);
-    if (!ret)
-	LoaderErrorMsg(pScrn->name, name, errmaj, errmin);
-    return ret;
-}
-
-/*
- * xf86LoadOneModule loads a single module.
- */
-pointer
-xf86LoadOneModule(char *name, pointer opt)
-{
-    int errmaj, errmin;
-    char *Name;
-    pointer mod;
-
-    if (!name)
-	return NULL;
-
-    /* Normalise the module name */
-    Name = xf86NormalizeName(name);
-
-    /* Skip empty names */
-    if (Name == NULL)
-	return NULL;
-    if (*Name == '\0') {
-	xfree(Name);
-	return NULL;
-    }
-
-    mod = LoadModule(Name, NULL, NULL, NULL, opt, NULL, &errmaj, &errmin);
-    if (!mod)
-	LoaderErrorMsg(NULL, Name, errmaj, errmin);
-    xfree(Name);
-    return mod;
-}
-
-void
-xf86UnloadSubModule(pointer mod)
-{
-    /*
-     * This is disabled for now.  The loader isn't smart enough yet to undo
-     * relocations.
-     */
-#if 0
-    UnloadSubModule(mod);
-#endif
-}
-
-Bool
-xf86LoaderCheckSymbol(const char *name)
-{
-    return LoaderSymbol(name) != NULL;
-}
-
-typedef enum {
-   OPTION_BACKING_STORE
-} BSOpts;
-
-static const OptionInfoRec BSOptions[] = {
-   { OPTION_BACKING_STORE, "BackingStore", OPTV_BOOLEAN, {0}, FALSE },
-   { -1,                   NULL,           OPTV_NONE,    {0}, FALSE }
-};
-
-void
-xf86SetBackingStore(ScreenPtr pScreen)
-{
-    Bool useBS = FALSE;
-    MessageType from = X_DEFAULT;
-    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
-    OptionInfoPtr options;
-
-    options = xnfalloc(sizeof(BSOptions));
-    (void)memcpy(options, BSOptions, sizeof(BSOptions));
-    xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, options);
-
-    /* check for commandline option here */
-    if (xf86bsEnableFlag) {
-	from = X_CMDLINE;
-	useBS = TRUE;
-    } else if (xf86bsDisableFlag) {
-	from = X_CMDLINE;
-	useBS = FALSE;
-    } else {
-	if (xf86GetOptValBool(options, OPTION_BACKING_STORE, &useBS))
-	    from = X_CONFIG;
-    }
-    xfree(options);
-    pScreen->backingStoreSupport = useBS ? Always : NotUseful;
-    if (serverGeneration == 1)
-	xf86DrvMsg(pScreen->myNum, from, "Backing store %s\n",
-		   useBS ? "enabled" : "disabled");
-}
-
-
-typedef enum {
-   OPTION_SILKEN_MOUSE
-} SMOpts;
-
-static const OptionInfoRec SMOptions[] = {
-   { OPTION_SILKEN_MOUSE, "SilkenMouse",   OPTV_BOOLEAN, {0}, FALSE },
-   { -1,                   NULL,           OPTV_NONE,    {0}, FALSE }
-};
-
-void
-xf86SetSilkenMouse (ScreenPtr pScreen)
-{
-    Bool useSM = TRUE;
-    MessageType from = X_DEFAULT;
-    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
-    OptionInfoPtr options;
-
-    options = xnfalloc(sizeof(SMOptions));
-    (void)memcpy(options, SMOptions, sizeof(SMOptions));
-    xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, options);
-
-    /* check for commandline option here */
-    /* disable if screen shares resources */
-	/* TODO VGA arb disable silken mouse */
-    if (xf86silkenMouseDisableFlag) {
-        from = X_CMDLINE;
-	useSM = FALSE;
-    } else {
-	if (xf86GetOptValBool(options, OPTION_SILKEN_MOUSE, &useSM))
-	    from = X_CONFIG;
-    }
-    xfree(options);
-    /*
-     * XXX quick hack to report correctly for OSs that can't do SilkenMouse
-     * yet.  Should handle this differently so that alternate async methods
-     * work correctly with this too.
-     */
-    pScrn->silkenMouse = useSM && xf86Info.useSIGIO && xf86SIGIOSupported();
-    if (serverGeneration == 1)
-	xf86DrvMsg(pScreen->myNum, from, "Silken mouse %s\n",
-		   pScrn->silkenMouse ? "enabled" : "disabled");
-}
-
-/* Wrote this function for the PM2 Xv driver, preliminary. */
-
-pointer
-xf86FindXvOptions(int scrnIndex, int adaptor_index, char *port_name,
-		  char **adaptor_name, pointer *adaptor_options)
-{
-    ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
-    confXvAdaptorPtr adaptor;
-    int i;
-
-    if (adaptor_index >= pScrn->confScreen->numxvadaptors) {
-	if (adaptor_name) *adaptor_name = NULL;
-	if (adaptor_options) *adaptor_options = NULL;
-	return NULL;
-    }
-
-    adaptor = &pScrn->confScreen->xvadaptors[adaptor_index];
-    if (adaptor_name) *adaptor_name = adaptor->identifier;
-    if (adaptor_options) *adaptor_options = adaptor->options;
-
-    for (i = 0; i < adaptor->numports; i++)
-	if (!xf86NameCmp(adaptor->ports[i].identifier, port_name))
-	    return adaptor->ports[i].options;
-
-    return NULL;
-}
-
-/* Rather than duplicate loader's get OS function, just include it directly */
-#define LoaderGetOS xf86GetOS
-#include "loader/os.c"
-
-/* new RAC */
-/*
- * xf86ConfigPciEntityInactive() -- This function can be used
- * to configure an inactive entity as well as to reconfigure an
- * previously active entity inactive. If the entity has been
- * assigned to a screen before it will be removed. If p_chip is
- * non-NULL all static resources listed there will be registered.
- */
-static void
-xf86ConfigPciEntityInactive(EntityInfoPtr pEnt, PciChipsets *p_chip,
-			    EntityProc init, EntityProc enter,
-			    EntityProc leave, pointer private)
-{
-    ScrnInfoPtr pScrn;
-
-    if ((pScrn = xf86FindScreenForEntity(pEnt->index)))
-	xf86RemoveEntityFromScreen(pScrn,pEnt->index);
-
-    /* shared resources are only needed when entity is active: remove */
-    xf86SetEntityFuncs(pEnt->index,init,enter,leave,private);
-}
-
-static void
-xf86ConfigFbEntityInactive(EntityInfoPtr pEnt, EntityProc init,
-			   EntityProc enter, EntityProc leave, pointer private)
-{
-    ScrnInfoPtr pScrn;
-
-    if ((pScrn = xf86FindScreenForEntity(pEnt->index)))
-	xf86RemoveEntityFromScreen(pScrn,pEnt->index);
-    xf86SetEntityFuncs(pEnt->index,init,enter,leave,private);
-}
-
-ScrnInfoPtr
-xf86ConfigPciEntity(ScrnInfoPtr pScrn, int scrnFlag, int entityIndex,
-			  PciChipsets *p_chip, void *dummy, EntityProc init,
-			  EntityProc enter, EntityProc leave, pointer private)
-{
-    EntityInfoPtr pEnt = xf86GetEntityInfo(entityIndex);
-    if (!pEnt) return pScrn;
-
-    if (!(pEnt->location.type == BUS_PCI)
-	|| !xf86GetPciInfoForEntity(entityIndex)) {
-	xfree(pEnt);
-	return pScrn;
-    }
-    if (!pEnt->active) {
-	xf86ConfigPciEntityInactive(pEnt, p_chip, init,  enter,
-				    leave,  private);
-	xfree(pEnt);
-	return pScrn;
-    }
-
-    if (!pScrn)
-	pScrn = xf86AllocateScreen(pEnt->driver,scrnFlag);
-    if (xf86IsEntitySharable(entityIndex)) {
-        xf86SetEntityShared(entityIndex);
-    }
-    xf86AddEntityToScreen(pScrn,entityIndex);
-    if (xf86IsEntityShared(entityIndex)) {
-        return pScrn;
-    }
-    xfree(pEnt);
-
-    xf86SetEntityFuncs(entityIndex,init,enter,leave,private);
-
-    return pScrn;
-}
-
-ScrnInfoPtr
-xf86ConfigFbEntity(ScrnInfoPtr pScrn, int scrnFlag, int entityIndex,
-		   EntityProc init, EntityProc enter, EntityProc leave,
-		   pointer private)
-{
-    EntityInfoPtr pEnt = xf86GetEntityInfo(entityIndex);
-    if (!pEnt) return pScrn;
-
-    if (!(pEnt->location.type == BUS_NONE)) {
-	xfree(pEnt);
-	return pScrn;
-    }
-
-    if (!pEnt->active) {
-	xf86ConfigFbEntityInactive(pEnt, init,  enter, leave,  private);
-	xfree(pEnt);
-	return pScrn;
-    }
-
-    if (!pScrn)
-	pScrn = xf86AllocateScreen(pEnt->driver,scrnFlag);
-    xf86AddEntityToScreen(pScrn,entityIndex);
-
-    xf86SetEntityFuncs(entityIndex,init,enter,leave,private);
-
-    return pScrn;
-}
-
-/*
- *
- *  OBSOLETE ! xf86ConfigActivePciEntity() is an obsolete function.
- *             It is likely to be removed. Don't use!
- */
-
-Bool
-xf86ConfigActivePciEntity(ScrnInfoPtr pScrn, int entityIndex,
-                          PciChipsets *p_chip, void *dummy, EntityProc init,
-                          EntityProc enter, EntityProc leave, pointer private)
-{
-    EntityInfoPtr pEnt = xf86GetEntityInfo(entityIndex);
-    if (!pEnt) return FALSE;
-
-    if (!pEnt->active || !(pEnt->location.type == BUS_PCI)) {
-        xfree(pEnt);
-        return FALSE;
-    }
-    xf86AddEntityToScreen(pScrn,entityIndex);
-
-    xfree(pEnt);
-    if (!xf86SetEntityFuncs(entityIndex,init,enter,leave,private))
-        return FALSE;
-
-    return TRUE;
-}
-
-Bool
-xf86IsScreenPrimary(int scrnIndex)
-{
-    ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
-    int i;
-
-    for (i=0 ; i < pScrn->numEntities; i++) {
-	if (xf86IsEntityPrimary(i))
-	    return TRUE;
-    }
-    return FALSE;
-}
-
-int
-xf86RegisterRootWindowProperty(int ScrnIndex, Atom property, Atom type,
-			       int format, unsigned long len, pointer value )
-{
-    RootWinPropPtr pNewProp = NULL, pRegProp;
-    int i;
-    Bool existing = FALSE;
-
-    DebugF("xf86RegisterRootWindowProperty(%d, %ld, %ld, %d, %ld, %p)\n",
-	   ScrnIndex, property, type, format, len, value);
-
-    if (ScrnIndex<0 || ScrnIndex>=xf86NumScreens) {
-      return(BadMatch);
-    }
-
-    if (xf86RegisteredPropertiesTable &&
-	xf86RegisteredPropertiesTable[ScrnIndex]) {
-      for (pNewProp = xf86RegisteredPropertiesTable[ScrnIndex];
-	   pNewProp; pNewProp = pNewProp->next) {
-	if (strcmp(pNewProp->name, NameForAtom(property)) == 0)
-	  break;
-      }
-    }
-
-    if (!pNewProp) {
-      if ((pNewProp = (RootWinPropPtr)xalloc(sizeof(RootWinProp))) == NULL) {
-	return(BadAlloc);
-      }
-      /*
-       * We will put this property at the end of the list so that
-       * the changes are made in the order they were requested.
-       */
-      pNewProp->next = NULL;
-    } else {
-      if (pNewProp->name)
-	xfree(pNewProp->name);
-      existing = TRUE;
-    }
-
-    pNewProp->name = xnfstrdup(NameForAtom(property));
-    pNewProp->type = type;
-    pNewProp->format = format;
-    pNewProp->size = len;
-    pNewProp->data = value;
-
-    DebugF("new property filled\n");
-
-    if (NULL==xf86RegisteredPropertiesTable) {
-      DebugF("creating xf86RegisteredPropertiesTable[] size %d\n",
-	     xf86NumScreens);
-      if ( NULL==(xf86RegisteredPropertiesTable=(RootWinPropPtr*)xnfcalloc(sizeof(RootWinProp),xf86NumScreens) )) {
-	return(BadAlloc);
-      }
-      for (i=0; i<xf86NumScreens; i++) {
-	xf86RegisteredPropertiesTable[i] = NULL;
-      }
-    }
-
-    DebugF("xf86RegisteredPropertiesTable %p\n",
-	   (void *)xf86RegisteredPropertiesTable);
-    DebugF("xf86RegisteredPropertiesTable[%d] %p\n",
-	   ScrnIndex, (void *)xf86RegisteredPropertiesTable[ScrnIndex]);
-
-    if (!existing) {
-      if ( xf86RegisteredPropertiesTable[ScrnIndex] == NULL) {
-	xf86RegisteredPropertiesTable[ScrnIndex] = pNewProp;
-      } else {
-	pRegProp = xf86RegisteredPropertiesTable[ScrnIndex];
-	while (pRegProp->next != NULL) {
-	  DebugF("- next %p\n", (void *)pRegProp);
-	  pRegProp = pRegProp->next;
-        }
-	pRegProp->next = pNewProp;
-      }
-    }
-    DebugF("xf86RegisterRootWindowProperty succeeded\n");
-    return(Success);
-}
-
-Bool
-xf86IsUnblank(int mode)
-{
-    switch(mode) {
-    case SCREEN_SAVER_OFF:
-    case SCREEN_SAVER_FORCER:
-	return TRUE;
-    case SCREEN_SAVER_ON:
-    case SCREEN_SAVER_CYCLE:
-	return FALSE;
-    default:
-	xf86MsgVerb(X_WARNING, 0, "Unexpected save screen mode: %d\n", mode);
-	return TRUE;
-    }
-}
-
-void
-xf86MotionHistoryAllocate(LocalDevicePtr local)
-{
-    AllocateMotionHistory(local->dev);
-}
+/*

+ * 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).

+ */

+

+/*

+ * Authors: Dirk Hohndel <hohndel@XFree86.Org>

+ *          David Dawes <dawes@XFree86.Org>

+ *          ... and others

+ *

+ * This file includes the helper functions that the server provides for

+ * different drivers.

+ */

+

+#ifdef HAVE_XORG_CONFIG_H

+#include <xorg-config.h>

+#endif

+

+#include <pciaccess.h>

+#include "Pci.h"

+

+#include <X11/X.h>

+#include "os.h"

+#include "servermd.h"

+#include "pixmapstr.h"

+#include "windowstr.h"

+#include "propertyst.h"

+#include "gcstruct.h"

+#include "loaderProcs.h"

+#include "xf86.h"

+#include "xf86Priv.h"

+#include "xf86_OSlib.h"

+#include "micmap.h"

+#include "xf86DDC.h"

+#include "xf86Xinput.h"

+#include "xf86InPriv.h"

+#include "mivalidate.h"

+#include "xf86Bus.h"

+#include "xf86Crtc.h"

+

+/* For xf86GetClocks */

+#if defined(CSRG_BASED) || defined(__GNU__)

+#define HAS_SETPRIORITY

+#include <sys/resource.h>

+#endif

+

+static int xf86ScrnInfoPrivateCount = 0;

+

+

+/* Add a pointer to a new DriverRec to xf86DriverList */

+

+void

+xf86AddDriver(DriverPtr driver, pointer module, int flags)

+{

+    /* Don't add null entries */

+    if (!driver)

+	return;

+

+    if (xf86DriverList == NULL)

+	xf86NumDrivers = 0;

+

+    xf86NumDrivers++;

+    xf86DriverList = xnfrealloc(xf86DriverList,

+				xf86NumDrivers * sizeof(DriverPtr));

+    xf86DriverList[xf86NumDrivers - 1] = xnfalloc(sizeof(DriverRec));

+    if (flags & HaveDriverFuncs)

+	*xf86DriverList[xf86NumDrivers - 1] = *driver;

+    else {

+	(void) memset( xf86DriverList[xf86NumDrivers - 1], 0,

+		       sizeof( DriverRec ) );

+	(void) memcpy( xf86DriverList[xf86NumDrivers - 1], driver,

+		       sizeof(DriverRec1));

+

+    }

+    xf86DriverList[xf86NumDrivers - 1]->module = module;

+    xf86DriverList[xf86NumDrivers - 1]->refCount = 0;

+}

+

+void

+xf86DeleteDriver(int drvIndex)

+{

+    if (xf86DriverList[drvIndex]

+	&& (!xf86DriverHasEntities(xf86DriverList[drvIndex]))) {

+	if (xf86DriverList[drvIndex]->module)

+	    UnloadModule(xf86DriverList[drvIndex]->module);

+	free(xf86DriverList[drvIndex]);

+	xf86DriverList[drvIndex] = NULL;

+    }

+}

+

+/* Add a pointer to a new InputDriverRec to xf86InputDriverList */

+

+void

+xf86AddInputDriver(InputDriverPtr driver, pointer module, int flags)

+{

+    /* Don't add null entries */

+    if (!driver)

+	return;

+

+    if (xf86InputDriverList == NULL)

+	xf86NumInputDrivers = 0;

+

+    xf86NumInputDrivers++;

+    xf86InputDriverList = xnfrealloc(xf86InputDriverList,

+				xf86NumInputDrivers * sizeof(InputDriverPtr));

+    xf86InputDriverList[xf86NumInputDrivers - 1] =

+				xnfalloc(sizeof(InputDriverRec));

+    *xf86InputDriverList[xf86NumInputDrivers - 1] = *driver;

+    xf86InputDriverList[xf86NumInputDrivers - 1]->module = module;

+    xf86InputDriverList[xf86NumInputDrivers - 1]->refCount = 0;

+}

+

+void

+xf86DeleteInputDriver(int drvIndex)

+{

+    if (xf86InputDriverList[drvIndex] && xf86InputDriverList[drvIndex]->module)

+	UnloadModule(xf86InputDriverList[drvIndex]->module);

+    free(xf86InputDriverList[drvIndex]);

+    xf86InputDriverList[drvIndex] = NULL;

+}

+

+InputDriverPtr

+xf86LookupInputDriver(const char *name)

+{

+    int i;

+

+    for (i = 0; i < xf86NumInputDrivers; i++) {

+       if (xf86InputDriverList[i] && xf86InputDriverList[i]->driverName &&

+           xf86NameCmp(name, xf86InputDriverList[i]->driverName) == 0)

+           return xf86InputDriverList[i];

+    }

+    return NULL;

+}

+

+InputInfoPtr

+xf86LookupInput(const char *name)

+{

+    InputInfoPtr p;

+

+    for (p = xf86InputDevs; p != NULL; p = p->next) {

+        if (strcmp(name, p->name) == 0)

+            return p;

+    }

+

+    return NULL;

+}

+

+/* Allocate a new ScrnInfoRec in xf86Screens */

+

+ScrnInfoPtr

+xf86AllocateScreen(DriverPtr drv, int flags)

+{

+    int i;

+

+    if (xf86Screens == NULL)

+	xf86NumScreens = 0;

+

+    i = xf86NumScreens++;

+    xf86Screens = xnfrealloc(xf86Screens, xf86NumScreens * sizeof(ScrnInfoPtr));

+    xf86Screens[i] = xnfcalloc(sizeof(ScrnInfoRec), 1);

+    xf86Screens[i]->scrnIndex = i;	/* Changes when a screen is removed */

+    xf86Screens[i]->origIndex = i;	/* This never changes */

+    xf86Screens[i]->privates = xnfcalloc(sizeof(DevUnion),

+					 xf86ScrnInfoPrivateCount);

+    /*

+     * EnableDisableFBAccess now gets initialized in InitOutput()

+     * xf86Screens[i]->EnableDisableFBAccess = xf86EnableDisableFBAccess;

+     */

+

+    xf86Screens[i]->drv = drv;

+    drv->refCount++;

+    xf86Screens[i]->module = DuplicateModule(drv->module, NULL);

+

+    xf86Screens[i]->DriverFunc = drv->driverFunc;

+

+    return xf86Screens[i];

+}

+

+

+/*

+ * Remove an entry from xf86Screens.  Ideally it should free all allocated

+ * data.  To do this properly may require a driver hook.

+ */

+

+void

+xf86DeleteScreen(int scrnIndex, int flags)

+{

+    ScrnInfoPtr pScrn;

+    int i;

+

+    /* First check if the screen is valid */

+    if (xf86NumScreens == 0 || xf86Screens == NULL)

+	return;

+

+    if (scrnIndex > xf86NumScreens - 1)

+	return;

+

+    if (!(pScrn = xf86Screens[scrnIndex]))

+	return;

+

+    /* If a FreeScreen function is defined, call it here */

+    if (pScrn->FreeScreen != NULL)

+	pScrn->FreeScreen(scrnIndex, 0);

+

+    while (pScrn->modes)

+	xf86DeleteMode(&pScrn->modes, pScrn->modes);

+

+    while (pScrn->modePool)

+	xf86DeleteMode(&pScrn->modePool, pScrn->modePool);

+

+    xf86OptionListFree(pScrn->options);

+

+    if (pScrn->module)

+	UnloadModule(pScrn->module);

+

+    if (pScrn->drv)

+	pScrn->drv->refCount--;

+

+    if (pScrn->privates)

+	free(pScrn->privates);

+

+    xf86ClearEntityListForScreen(scrnIndex);

+

+    free(pScrn);

+

+    /* Move the other entries down, updating their scrnIndex fields */

+

+    xf86NumScreens--;

+

+    for (i = scrnIndex; i < xf86NumScreens; i++) {

+	xf86Screens[i] = xf86Screens[i + 1];

+	xf86Screens[i]->scrnIndex = i;

+	/* Also need to take care of the screen layout settings */

+    }

+}

+

+/*

+ * Allocate a private in ScrnInfoRec.

+ */

+

+int

+xf86AllocateScrnInfoPrivateIndex(void)

+{

+    int idx, i;

+    ScrnInfoPtr pScr;

+    DevUnion *nprivs;

+

+    idx = xf86ScrnInfoPrivateCount++;

+    for (i = 0; i < xf86NumScreens; i++) {

+	pScr = xf86Screens[i];

+	nprivs = xnfrealloc(pScr->privates,

+			    xf86ScrnInfoPrivateCount * sizeof(DevUnion));

+	/* Zero the new private */

+	bzero(&nprivs[idx], sizeof(DevUnion));

+	pScr->privates = nprivs;

+    }

+    return idx;

+}

+

+/* Allocate a new InputInfoRec and append it to the tail of xf86InputDevs. */

+InputInfoPtr

+xf86AllocateInput(InputDriverPtr drv, int flags)

+{

+    InputInfoPtr new, *prev = NULL;

+

+    if (!(new = calloc(sizeof(InputInfoRec), 1)))

+	return NULL;

+

+    new->drv = drv;

+    drv->refCount++;

+    new->module = DuplicateModule(drv->module, NULL);

+

+    for (prev = &xf86InputDevs; *prev; prev = &(*prev)->next)

+        ;

+

+    *prev = new;

+    new->next = NULL;

+

+    return new;

+}

+

+

+/*

+ * Remove an entry from xf86InputDevs.  Ideally it should free all allocated

+ * data.  To do this properly may require a driver hook.

+ */

+

+void

+xf86DeleteInput(InputInfoPtr pInp, int flags)

+{

+    InputInfoPtr p;

+

+    /* First check if the inputdev is valid. */

+    if (pInp == NULL)

+	return;

+

+#if 0

+    /* If a free function is defined, call it here. */

+    if (pInp->free)

+	pInp->free(pInp, 0);

+#endif

+

+    if (pInp->module)

+	UnloadModule(pInp->module);

+

+    if (pInp->drv)

+	pInp->drv->refCount--;

+

+    /* This should *really* be handled in drv->UnInit(dev) call instead, but

+     * if the driver forgets about it make sure we free it or at least crash

+     * with flying colors */

+    if (pInp->private)

+	free(pInp->private);

+

+    /* Remove the entry from the list. */

+    if (pInp == xf86InputDevs)

+	xf86InputDevs = pInp->next;

+    else {

+	p = xf86InputDevs;

+	while (p && p->next != pInp)

+	    p = p->next;

+	if (p)

+	    p->next = pInp->next;

+	/* Else the entry wasn't in the xf86InputDevs list (ignore this). */

+    }

+    free(pInp);

+}

+

+Bool

+xf86AddPixFormat(ScrnInfoPtr pScrn, int depth, int bpp, int pad)

+{

+    int i;

+

+    if (pScrn->numFormats >= MAXFORMATS)

+	return FALSE;

+

+    if (bpp <= 0) {

+	if (depth == 1)

+	    bpp = 1;

+	else if (depth <= 8)

+	    bpp = 8;

+	else if (depth <= 16)

+	    bpp = 16;

+	else if (depth <= 32)

+	    bpp = 32;

+	else

+	    return FALSE;

+    }

+    if (pad <= 0)

+	pad = BITMAP_SCANLINE_PAD;

+

+    i = pScrn->numFormats++;

+    pScrn->formats[i].depth = depth;

+    pScrn->formats[i].bitsPerPixel = bpp;

+    pScrn->formats[i].scanlinePad = pad;

+    return TRUE;

+}

+

+/*

+ * Set the depth we are using based on (in the following order of preference):

+ *  - values given on the command line

+ *  - values given in the config file

+ *  - values provided by the driver

+ *  - an overall default when nothing else is given

+ *

+ * Also find a Display subsection matching the depth/bpp found.

+ *

+ * Sets the following ScrnInfoRec fields:

+ *     bitsPerPixel, pixmap24, depth, display, imageByteOrder,

+ *     bitmapScanlinePad, bitmapScanlineUnit, bitmapBitOrder, numFormats,

+ *     formats, fbFormat.

+ */

+

+/* Can the screen handle 24 bpp pixmaps */

+#define DO_PIX24(f) ((f & Support24bppFb) || \

+		     ((f & Support32bppFb) && (f & SupportConvert24to32)))

+

+/* Can the screen handle 32 bpp pixmaps */

+#define DO_PIX32(f) ((f & Support32bppFb) || \

+		     ((f & Support24bppFb) && (f & SupportConvert32to24)))

+

+/* Does the screen prefer 32bpp fb for 24bpp pixmaps */

+#define CHOOSE32FOR24(f) ((f & Support32bppFb) && (f & SupportConvert24to32) \

+			  && (f & PreferConvert24to32))

+

+/* Does the screen prefer 24bpp fb for 32bpp pixmaps */

+#define CHOOSE24FOR32(f) ((f & Support24bppFb) && (f & SupportConvert32to24) \

+			  && (f & PreferConvert32to24))

+

+/* Can the screen handle 32bpp pixmaps for 24bpp fb */

+#define DO_PIX32FOR24(f) ((f & Support24bppFb) && (f & SupportConvert32to24))

+

+/* Can the screen handle 24bpp pixmaps for 32bpp fb */

+#define DO_PIX24FOR32(f) ((f & Support32bppFb) && (f & SupportConvert24to32))

+

+#ifndef GLOBAL_DEFAULT_DEPTH

+#define GLOBAL_DEFAULT_DEPTH 24

+#endif

+

+Bool

+xf86SetDepthBpp(ScrnInfoPtr scrp, int depth, int dummy, int fbbpp,

+		int depth24flags)

+{

+    int i;

+    DispPtr disp;

+    Pix24Flags pix24 = xf86Info.pixmap24;

+    Bool nomatch = FALSE;

+

+    scrp->bitsPerPixel = -1;

+    scrp->depth = -1;

+    scrp->pixmap24 = Pix24DontCare;

+    scrp->bitsPerPixelFrom = X_DEFAULT;

+    scrp->depthFrom = X_DEFAULT;

+

+    if (xf86FbBpp > 0) {

+	scrp->bitsPerPixel = xf86FbBpp;

+	scrp->bitsPerPixelFrom = X_CMDLINE;

+    }

+

+    if (xf86Depth > 0) {

+	scrp->depth = xf86Depth;

+	scrp->depthFrom = X_CMDLINE;

+    }

+

+    if (xf86FbBpp < 0 && xf86Depth < 0) {

+	if (scrp->confScreen->defaultfbbpp > 0) {

+	    scrp->bitsPerPixel = scrp->confScreen->defaultfbbpp;

+	    scrp->bitsPerPixelFrom = X_CONFIG;

+	}

+	if (scrp->confScreen->defaultdepth > 0) {

+	    scrp->depth = scrp->confScreen->defaultdepth;

+	    scrp->depthFrom = X_CONFIG;

+	}

+

+	if (scrp->confScreen->defaultfbbpp <= 0 &&

+	    scrp->confScreen->defaultdepth <= 0) {

+	    /*

+	     * Check for DefaultDepth and DefaultFbBpp options in the

+	     * Device sections.

+	     */

+	    int i;

+	    GDevPtr device;

+	    Bool found = FALSE;

+

+	    for (i = 0; i < scrp->numEntities; i++) {

+		device = xf86GetDevFromEntity(scrp->entityList[i],

+					      scrp->entityInstanceList[i]);

+		if (device && device->options) {

+		    if (xf86FindOption(device->options, "DefaultDepth")) {

+			scrp->depth = xf86SetIntOption(device->options,

+						       "DefaultDepth", -1);

+			scrp->depthFrom = X_CONFIG;

+			found = TRUE;

+		    }

+		    if (xf86FindOption(device->options, "DefaultFbBpp")) {

+			scrp->bitsPerPixel = xf86SetIntOption(device->options,

+							      "DefaultFbBpp",

+							      -1);

+			scrp->bitsPerPixelFrom = X_CONFIG;

+			found = TRUE;

+		    }

+		}

+		if (found)

+		    break;

+	    }

+	}

+    }

+

+    /* If none of these is set, pick a default */

+    if (scrp->bitsPerPixel < 0 && scrp->depth < 0) {

+        if (fbbpp > 0 || depth > 0) {

+	    if (fbbpp > 0)

+		scrp->bitsPerPixel = fbbpp;

+	    if (depth > 0)

+		scrp->depth = depth;

+	} else {

+	    scrp->depth = GLOBAL_DEFAULT_DEPTH;

+	}

+    }

+

+    /* If any are not given, determine a default for the others */

+

+    if (scrp->bitsPerPixel < 0) {

+	/* The depth must be set */

+	if (scrp->depth > -1) {

+	    if (scrp->depth == 1)

+		scrp->bitsPerPixel = 1;

+	    else if (scrp->depth <= 4)

+		scrp->bitsPerPixel = 4;

+	    else if (scrp->depth <= 8)

+		scrp->bitsPerPixel = 8;

+	    else if (scrp->depth <= 16)

+		scrp->bitsPerPixel = 16;

+	    else if (scrp->depth <= 24) {

+		/*

+		 * Figure out if a choice is possible based on the depth24

+		 * and pix24 flags.

+		 */

+		/* Check pix24 first */

+		if (pix24 != Pix24DontCare) {

+		    if (pix24 == Pix24Use32) {

+			if (DO_PIX32(depth24flags)) {

+			    if (CHOOSE24FOR32(depth24flags))

+				scrp->bitsPerPixel = 24;

+			    else

+				scrp->bitsPerPixel = 32;

+			} else {

+			    nomatch = TRUE;

+			}

+		    } else if (pix24 == Pix24Use24) {

+			if (DO_PIX24(depth24flags)) {

+			    if (CHOOSE32FOR24(depth24flags))

+				scrp->bitsPerPixel = 32;

+			    else

+				scrp->bitsPerPixel = 24;

+			} else {

+			    nomatch = TRUE;

+			}

+		    }

+		} else {

+		    if (DO_PIX32(depth24flags)) {

+			if (CHOOSE24FOR32(depth24flags))

+			    scrp->bitsPerPixel = 24;

+			else

+			    scrp->bitsPerPixel = 32;

+		    } else if (DO_PIX24(depth24flags)) {

+			if (CHOOSE32FOR24(depth24flags))

+			    scrp->bitsPerPixel = 32;

+			else

+			    scrp->bitsPerPixel = 24;

+		    }

+		}

+	    } else if (scrp->depth <= 32)

+		scrp->bitsPerPixel = 32;

+	    else {

+		xf86DrvMsg(scrp->scrnIndex, X_ERROR,

+			   "Specified depth (%d) is greater than 32\n",

+			   scrp->depth);

+		return FALSE;

+	    }

+	} else {

+	    xf86DrvMsg(scrp->scrnIndex, X_ERROR,

+			"xf86SetDepthBpp: internal error: depth and fbbpp"

+			" are both not set\n");

+	    return FALSE;

+	}

+	if (scrp->bitsPerPixel < 0) {

+	    if (nomatch)

+		xf86DrvMsg(scrp->scrnIndex, X_ERROR,

+			"Driver can't support depth 24 pixmap format (%d)\n",

+			PIX24TOBPP(pix24));

+	    else if ((depth24flags & (Support24bppFb | Support32bppFb)) ==

+		     NoDepth24Support)

+		xf86DrvMsg(scrp->scrnIndex, X_ERROR,

+			"Driver can't support depth 24\n");

+	    else

+		xf86DrvMsg(scrp->scrnIndex, X_ERROR,

+			"Can't find fbbpp for depth 24\n");

+	    return FALSE;

+	}

+	scrp->bitsPerPixelFrom = X_PROBED;

+    }

+

+    if (scrp->depth <= 0) {

+	/* bitsPerPixel is already set */

+	switch (scrp->bitsPerPixel) {

+	case 32:

+	    scrp->depth = 24;

+	    break;

+	default:

+	    /* 1, 4, 8, 16 and 24 */

+	    scrp->depth = scrp->bitsPerPixel;

+	    break;

+	}

+	scrp->depthFrom = X_PROBED;

+    }

+

+    /* Sanity checks */

+    if (scrp->depth < 1 || scrp->depth > 32) {

+	xf86DrvMsg(scrp->scrnIndex, X_ERROR,

+		   "Specified depth (%d) is not in the range 1-32\n",

+		    scrp->depth);

+	return FALSE;

+    }

+    switch (scrp->bitsPerPixel) {

+    case 1:

+    case 4:

+    case 8:

+    case 16:

+    case 24:

+    case 32:

+	break;

+    default:

+	xf86DrvMsg(scrp->scrnIndex, X_ERROR,

+		   "Specified fbbpp (%d) is not a permitted value\n",

+		   scrp->bitsPerPixel);

+	return FALSE;

+    }

+    if (scrp->depth > scrp->bitsPerPixel) {

+	xf86DrvMsg(scrp->scrnIndex, X_ERROR,

+		   "Specified depth (%d) is greater than the fbbpp (%d)\n",

+		   scrp->depth, scrp->bitsPerPixel);

+	return FALSE;

+    }

+

+    /* set scrp->pixmap24 if the driver isn't flexible */

+    if (scrp->bitsPerPixel == 24 && !DO_PIX32FOR24(depth24flags)) {

+	scrp->pixmap24 = Pix24Use24;

+    }

+    if (scrp->bitsPerPixel == 32 && !DO_PIX24FOR32(depth24flags)) {

+	scrp->pixmap24 = Pix24Use32;

+    }

+

+    /*

+     * Find the Display subsection matching the depth/fbbpp and initialise

+     * scrp->display with it.

+     */

+    for (i = 0, disp = scrp->confScreen->displays;

+	 i < scrp->confScreen->numdisplays; i++, disp++) {

+	if ((disp->depth == scrp->depth && disp->fbbpp == scrp->bitsPerPixel)

+	    || (disp->depth == scrp->depth && disp->fbbpp <= 0)

+	    || (disp->fbbpp == scrp->bitsPerPixel && disp->depth <= 0)) {

+	    scrp->display = disp;

+	    break;

+	}

+    }

+

+    /*

+     * If an exact match can't be found, see if there is one with no

+     * depth or fbbpp specified.

+     */

+    if (i == scrp->confScreen->numdisplays) {

+	for (i = 0, disp = scrp->confScreen->displays;

+	     i < scrp->confScreen->numdisplays; i++, disp++) {

+	    if (disp->depth <= 0 && disp->fbbpp <= 0) {

+		scrp->display = disp;

+		break;

+	    }

+	}

+    }

+

+    /*

+     * If all else fails, create a default one.

+     */

+    if (i == scrp->confScreen->numdisplays) {

+	scrp->confScreen->numdisplays++;

+	scrp->confScreen->displays =

+		xnfrealloc(scrp->confScreen->displays,

+			   scrp->confScreen->numdisplays * sizeof(DispRec));

+	xf86DrvMsg(scrp->scrnIndex, X_INFO,

+		   "Creating default Display subsection in Screen section\n"

+		   "\t\"%s\" for depth/fbbpp %d/%d\n",

+		   scrp->confScreen->id, scrp->depth, scrp->bitsPerPixel);

+	memset(&scrp->confScreen->displays[i], 0, sizeof(DispRec));

+	scrp->confScreen->displays[i].blackColour.red = -1;

+	scrp->confScreen->displays[i].blackColour.green = -1;

+	scrp->confScreen->displays[i].blackColour.blue = -1;

+	scrp->confScreen->displays[i].whiteColour.red = -1;

+	scrp->confScreen->displays[i].whiteColour.green = -1;

+	scrp->confScreen->displays[i].whiteColour.blue = -1;

+	scrp->confScreen->displays[i].defaultVisual = -1;

+	scrp->confScreen->displays[i].modes = xnfalloc(sizeof(char *));

+	scrp->confScreen->displays[i].modes[0] = NULL;

+	scrp->confScreen->displays[i].depth = depth;

+	scrp->confScreen->displays[i].fbbpp = fbbpp;

+	scrp->display = &scrp->confScreen->displays[i];

+    }

+

+    /*

+     * Setup defaults for the display-wide attributes the framebuffer will

+     * need.  These defaults should eventually be set globally, and not

+     * dependent on the screens.

+     */

+    scrp->imageByteOrder = IMAGE_BYTE_ORDER;

+    scrp->bitmapScanlinePad = BITMAP_SCANLINE_PAD;

+    if (scrp->depth < 8) {

+	/* Planar modes need these settings */

+	scrp->bitmapScanlineUnit = 8;

+	scrp->bitmapBitOrder = MSBFirst;

+    } else {

+	scrp->bitmapScanlineUnit = BITMAP_SCANLINE_UNIT;

+	scrp->bitmapBitOrder = BITMAP_BIT_ORDER;

+    }

+

+    /*

+     * If an unusual depth is required, add it to scrp->formats.  The formats

+     * for the common depths are handled globally in InitOutput

+     */

+    switch (scrp->depth) {

+    case 1:

+    case 4:

+    case 8:

+    case 15:

+    case 16:

+    case 24:

+	/* Common depths.  Nothing to do for them */

+	break;

+    default:

+	if (!xf86AddPixFormat(scrp, scrp->depth, 0, 0)) {

+	    xf86DrvMsg(scrp->scrnIndex, X_ERROR,

+		       "Can't add pixmap format for depth %d\n", scrp->depth);

+	    return FALSE;

+	}

+    }

+

+    /* Initialise the framebuffer format for this screen */

+    scrp->fbFormat.depth = scrp->depth;

+    scrp->fbFormat.bitsPerPixel = scrp->bitsPerPixel;

+    scrp->fbFormat.scanlinePad = BITMAP_SCANLINE_PAD;

+

+    return TRUE;

+}

+

+/*

+ * Print out the selected depth and bpp.

+ */

+void

+xf86PrintDepthBpp(ScrnInfoPtr scrp)

+{

+    xf86DrvMsg(scrp->scrnIndex, scrp->depthFrom, "Depth %d, ", scrp->depth);

+    xf86Msg(scrp->bitsPerPixelFrom, "framebuffer bpp %d\n", scrp->bitsPerPixel);

+}

+

+/*

+ * xf86SetWeight sets scrp->weight, scrp->mask, scrp->offset, and for depths

+ * greater than MAX_PSEUDO_DEPTH also scrp->rgbBits.

+ */

+Bool

+xf86SetWeight(ScrnInfoPtr scrp, rgb weight, rgb mask)

+{

+    MessageType weightFrom = X_DEFAULT;

+

+    scrp->weight.red = 0;

+    scrp->weight.green = 0;

+    scrp->weight.blue = 0;

+

+    if (xf86Weight.red > 0 && xf86Weight.green > 0 && xf86Weight.blue > 0) {

+	scrp->weight = xf86Weight;

+	weightFrom = X_CMDLINE;

+    } else if (scrp->display->weight.red > 0 && scrp->display->weight.green > 0

+	       && scrp->display->weight.blue > 0) {

+	scrp->weight = scrp->display->weight;

+	weightFrom = X_CONFIG;

+    } else if (weight.red > 0 && weight.green > 0 && weight.blue > 0) {

+	scrp->weight = weight;

+    } else {

+	switch (scrp->depth) {

+	case 1:

+	case 4:

+	case 8:

+	    scrp->weight.red = scrp->weight.green =

+		scrp->weight.blue = scrp->rgbBits;

+	    break;

+	case 15:

+	    scrp->weight.red = scrp->weight.green = scrp->weight.blue = 5;

+	    break;

+	case 16:

+	    scrp->weight.red = scrp->weight.blue = 5;

+	    scrp->weight.green = 6;

+	    break;

+	case 24:

+	    scrp->weight.red = scrp->weight.green = scrp->weight.blue = 8;

+	    break;

+	case 30:

+	    scrp->weight.red = scrp->weight.green = scrp->weight.blue = 10;

+	    break;

+	}

+    }

+

+    if (scrp->weight.red)

+	xf86DrvMsg(scrp->scrnIndex, weightFrom, "RGB weight %d%d%d\n",

+		   (int)scrp->weight.red, (int)scrp->weight.green,

+		   (int)scrp->weight.blue);

+

+    if (scrp->depth > MAX_PSEUDO_DEPTH &&

+	(scrp->depth != scrp->weight.red + scrp->weight.green +

+			scrp->weight.blue)) {

+	xf86DrvMsg(scrp->scrnIndex, X_ERROR,

+		   "Weight given (%d%d%d) is inconsistent with the "

+		   "depth (%d)\n",

+		   (int)scrp->weight.red, (int)scrp->weight.green,

+		   (int)scrp->weight.blue, scrp->depth);

+	return FALSE;

+    }

+    if (scrp->depth > MAX_PSEUDO_DEPTH && scrp->weight.red) {

+	/*

+	 * XXX Does this even mean anything for TrueColor visuals?

+	 * If not, we shouldn't even be setting it here.  However, this

+	 * matches the behaviour of 3.x versions of XFree86.

+	 */

+	scrp->rgbBits = scrp->weight.red;

+	if (scrp->weight.green > scrp->rgbBits)

+	    scrp->rgbBits = scrp->weight.green;

+	if (scrp->weight.blue > scrp->rgbBits)

+	    scrp->rgbBits = scrp->weight.blue;

+    }

+

+    /* Set the mask and offsets */

+    if (mask.red == 0 || mask.green == 0 || mask.blue == 0) {

+	/* Default to a setting common to PC hardware */

+	scrp->offset.red = scrp->weight.green + scrp->weight.blue;

+	scrp->offset.green = scrp->weight.blue;

+	scrp->offset.blue = 0;

+	scrp->mask.red = ((1 << scrp->weight.red) - 1) << scrp->offset.red;

+	scrp->mask.green = ((1 << scrp->weight.green) - 1)

+				<< scrp->offset.green;

+	scrp->mask.blue = (1 << scrp->weight.blue) - 1;

+    } else {

+	/* Initialise to the values passed */

+	scrp->mask.red = mask.red;

+	scrp->mask.green = mask.green;

+	scrp->mask.blue = mask.blue;

+	scrp->offset.red = ffs(mask.red);

+	scrp->offset.green = ffs(mask.green);

+	scrp->offset.blue = ffs(mask.blue);

+    }

+    return TRUE;

+}

+

+Bool

+xf86SetDefaultVisual(ScrnInfoPtr scrp, int visual)

+{

+    MessageType visualFrom = X_DEFAULT;

+

+    if (defaultColorVisualClass >= 0) {

+	scrp->defaultVisual = defaultColorVisualClass;

+	visualFrom = X_CMDLINE;

+    } else if (scrp->display->defaultVisual >= 0) {

+	scrp->defaultVisual = scrp->display->defaultVisual;

+	visualFrom = X_CONFIG;

+    } else if (visual >= 0) {

+	scrp->defaultVisual = visual;

+    } else {

+	if (scrp->depth == 1)

+	    scrp->defaultVisual = StaticGray;

+	else if (scrp->depth == 4)

+	    scrp->defaultVisual = StaticColor;

+	else if (scrp->depth <= MAX_PSEUDO_DEPTH)

+	    scrp->defaultVisual = PseudoColor;

+	else

+	    scrp->defaultVisual = TrueColor;

+    }

+    switch (scrp->defaultVisual) {

+    case StaticGray:

+    case GrayScale:

+    case StaticColor:

+    case PseudoColor:

+    case TrueColor:

+    case DirectColor:

+	xf86DrvMsg(scrp->scrnIndex, visualFrom, "Default visual is %s\n",

+		   xf86VisualNames[scrp->defaultVisual]);

+	    return TRUE;

+    default:

+

+	xf86DrvMsg(scrp->scrnIndex, X_ERROR,

+		   "Invalid default visual class (%d)\n", scrp->defaultVisual);

+	return FALSE;

+    }

+}

+

+#define TEST_GAMMA(g) \

+	(g).red > GAMMA_ZERO || (g).green > GAMMA_ZERO || (g).blue > GAMMA_ZERO

+

+#define SET_GAMMA(g) \

+	(g) > GAMMA_ZERO ? (g) : 1.0

+

+Bool

+xf86SetGamma(ScrnInfoPtr scrp, Gamma gamma)

+{

+    MessageType from = X_DEFAULT;

+#if 0

+    xf86MonPtr DDC = (xf86MonPtr)(scrp->monitor->DDC);

+#endif

+    if (TEST_GAMMA(xf86Gamma)) {

+	from = X_CMDLINE;

+	scrp->gamma.red = SET_GAMMA(xf86Gamma.red);

+	scrp->gamma.green = SET_GAMMA(xf86Gamma.green);

+	scrp->gamma.blue = SET_GAMMA(xf86Gamma.blue);

+    } else if (TEST_GAMMA(scrp->monitor->gamma)) {

+	from = X_CONFIG;

+	scrp->gamma.red = SET_GAMMA(scrp->monitor->gamma.red);

+	scrp->gamma.green = SET_GAMMA(scrp->monitor->gamma.green);

+	scrp->gamma.blue = SET_GAMMA(scrp->monitor->gamma.blue);

+#if 0

+    } else if ( DDC && DDC->features.gamma > GAMMA_ZERO ) {

+        from = X_PROBED;

+	scrp->gamma.red = SET_GAMMA(DDC->features.gamma);

+	scrp->gamma.green = SET_GAMMA(DDC->features.gamma);

+	scrp->gamma.blue = SET_GAMMA(DDC->features.gamma);

+	/* EDID structure version 2 gives optional seperate red, green & blue gamma values

+	 * in bytes 0x57-0x59 */

+#endif

+    } else if (TEST_GAMMA(gamma)) {

+	scrp->gamma.red = SET_GAMMA(gamma.red);

+	scrp->gamma.green = SET_GAMMA(gamma.green);

+	scrp->gamma.blue = SET_GAMMA(gamma.blue);

+    } else {

+	scrp->gamma.red = 1.0;

+	scrp->gamma.green = 1.0;

+	scrp->gamma.blue = 1.0;

+    }

+    /* Pretend we succeeded if we support better a gamma system.

+     * This avoids a confusing message.

+     */

+    if (xf86_crtc_supports_gamma(scrp))

+	return TRUE;

+    xf86DrvMsg(scrp->scrnIndex, from,

+	       "Using gamma correction (%.1f, %.1f, %.1f)\n",

+	       scrp->gamma.red, scrp->gamma.green, scrp->gamma.blue);

+

+    return TRUE;

+}

+

+#undef TEST_GAMMA

+#undef SET_GAMMA

+

+

+/*

+ * Set the DPI from the command line option.  XXX should allow it to be

+ * calculated from the widthmm/heightmm values.

+ */

+

+#undef MMPERINCH

+#define MMPERINCH 25.4

+

+void

+xf86SetDpi(ScrnInfoPtr pScrn, int x, int y)

+{

+    MessageType from = X_DEFAULT;

+    xf86MonPtr DDC = (xf86MonPtr)(pScrn->monitor->DDC);

+    int ddcWidthmm, ddcHeightmm;

+    int widthErr, heightErr;

+

+    /* XXX Maybe there is no need for widthmm/heightmm in ScrnInfoRec */

+    pScrn->widthmm = pScrn->monitor->widthmm;

+    pScrn->heightmm = pScrn->monitor->heightmm;

+

+    if (DDC && (DDC->features.hsize > 0 && DDC->features.vsize > 0) ) {

+      /* DDC gives display size in mm for individual modes,

+       * but cm for monitor

+       */

+      ddcWidthmm = DDC->features.hsize * 10; /* 10mm in 1cm */

+      ddcHeightmm = DDC->features.vsize * 10; /* 10mm in 1cm */

+    } else {

+      ddcWidthmm = ddcHeightmm = 0;

+    }

+

+    if (monitorResolution > 0) {

+	pScrn->xDpi = monitorResolution;

+	pScrn->yDpi = monitorResolution;

+	from = X_CMDLINE;

+    } else if (pScrn->widthmm > 0 || pScrn->heightmm > 0) {

+	from = X_CONFIG;

+	if (pScrn->widthmm > 0) {

+	   pScrn->xDpi =

+		(int)((double)pScrn->virtualX * MMPERINCH / pScrn->widthmm);

+	}

+	if (pScrn->heightmm > 0) {

+	   pScrn->yDpi =

+		(int)((double)pScrn->virtualY * MMPERINCH / pScrn->heightmm);

+	}

+	if (pScrn->xDpi > 0 && pScrn->yDpi <= 0)

+	    pScrn->yDpi = pScrn->xDpi;

+	if (pScrn->yDpi > 0 && pScrn->xDpi <= 0)

+	    pScrn->xDpi = pScrn->yDpi;

+	xf86DrvMsg(pScrn->scrnIndex, from, "Display dimensions: (%d, %d) mm\n",

+		   pScrn->widthmm, pScrn->heightmm);

+

+	/* Warn if config and probe disagree about display size */

+	if ( ddcWidthmm && ddcHeightmm ) {

+	  if (pScrn->widthmm > 0) {

+	    widthErr  = abs(ddcWidthmm  - pScrn->widthmm);

+	  } else {

+	    widthErr  = 0;

+	  }

+	  if (pScrn->heightmm > 0) {

+	    heightErr = abs(ddcHeightmm - pScrn->heightmm);

+	  } else {

+	    heightErr = 0;

+	  }

+	  if (widthErr>10 || heightErr>10) {

+	    /* Should include config file name for monitor here */

+	    xf86DrvMsg(pScrn->scrnIndex, X_WARNING,

+		       "Probed monitor is %dx%d mm, using Displaysize %dx%d mm\n",

+		       ddcWidthmm,ddcHeightmm, pScrn->widthmm,pScrn->heightmm);

+	  }

+	}

+    } else if ( ddcWidthmm && ddcHeightmm ) {

+	from = X_PROBED;

+	xf86DrvMsg(pScrn->scrnIndex, from, "Display dimensions: (%d, %d) mm\n",

+		   ddcWidthmm, ddcHeightmm );

+	pScrn->widthmm = ddcWidthmm;

+	pScrn->heightmm = ddcHeightmm;

+	if (pScrn->widthmm > 0) {

+	   pScrn->xDpi =

+		(int)((double)pScrn->virtualX * MMPERINCH / pScrn->widthmm);

+	}

+	if (pScrn->heightmm > 0) {

+	   pScrn->yDpi =

+		(int)((double)pScrn->virtualY * MMPERINCH / pScrn->heightmm);

+	}

+	if (pScrn->xDpi > 0 && pScrn->yDpi <= 0)

+	    pScrn->yDpi = pScrn->xDpi;

+	if (pScrn->yDpi > 0 && pScrn->xDpi <= 0)

+	    pScrn->xDpi = pScrn->yDpi;

+    } else {

+	if (x > 0)

+	    pScrn->xDpi = x;

+	else

+	    pScrn->xDpi = DEFAULT_DPI;

+	if (y > 0)

+	    pScrn->yDpi = y;

+	else

+	    pScrn->yDpi = DEFAULT_DPI;

+    }

+    xf86DrvMsg(pScrn->scrnIndex, from, "DPI set to (%d, %d)\n",

+	       pScrn->xDpi, pScrn->yDpi);

+}

+

+#undef MMPERINCH

+

+

+void

+xf86SetBlackWhitePixels(ScreenPtr pScreen)

+{

+    if (xf86FlipPixels) {

+	pScreen->whitePixel = 0;

+	pScreen->blackPixel = 1;

+    } else {

+	pScreen->whitePixel = 1;

+	pScreen->blackPixel = 0;

+    }

+}

+

+/*

+ * xf86SetRootClip --

+ *	Enable or disable rendering to the screen by

+ *	setting the root clip list and revalidating

+ *	all of the windows

+ */

+

+static void

+xf86SetRootClip (ScreenPtr pScreen, Bool enable)

+{

+    WindowPtr	pWin = WindowTable[pScreen->myNum];

+    WindowPtr	pChild;

+    Bool	WasViewable = (Bool)(pWin->viewable);

+    Bool	anyMarked = FALSE;

+    WindowPtr   pLayerWin;

+    BoxRec	box;

+

+    if (WasViewable)

+    {

+	for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib)

+	{

+	    (void) (*pScreen->MarkOverlappedWindows)(pChild,

+						     pChild,

+						     &pLayerWin);

+	}

+	(*pScreen->MarkWindow) (pWin);

+	anyMarked = TRUE;

+	if (pWin->valdata)

+	{

+	    if (HasBorder (pWin))

+	    {

+		RegionPtr	borderVisible;

+

+		borderVisible = REGION_CREATE(pScreen, NullBox, 1);

+		REGION_SUBTRACT(pScreen, borderVisible,

+				&pWin->borderClip, &pWin->winSize);

+		pWin->valdata->before.borderVisible = borderVisible;

+	    }

+	    pWin->valdata->before.resized = TRUE;

+	}

+    }

+

+    /*

+     * Use REGION_BREAK to avoid optimizations in ValidateTree

+     * that assume the root borderClip can't change well, normally

+     * it doesn't...)

+     */

+    if (enable)

+    {

+	box.x1 = 0;

+	box.y1 = 0;

+	box.x2 = pScreen->width;

+	box.y2 = pScreen->height;

+	REGION_INIT (pScreen, &pWin->winSize, &box, 1);

+	REGION_INIT (pScreen, &pWin->borderSize, &box, 1);

+	if (WasViewable)

+	    REGION_RESET(pScreen, &pWin->borderClip, &box);

+	pWin->drawable.width = pScreen->width;

+	pWin->drawable.height = pScreen->height;

+        REGION_BREAK (pWin->drawable.pScreen, &pWin->clipList);

+    }

+    else

+    {

+	REGION_EMPTY(pScreen, &pWin->borderClip);

+	REGION_BREAK (pWin->drawable.pScreen, &pWin->clipList);

+    }

+

+    ResizeChildrenWinSize (pWin, 0, 0, 0, 0);

+

+    if (WasViewable)

+    {

+	if (pWin->firstChild)

+	{

+	    anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin->firstChild,

+							   pWin->firstChild,

+							   (WindowPtr *)NULL);

+	}

+	else

+	{

+	    (*pScreen->MarkWindow) (pWin);

+	    anyMarked = TRUE;

+	}

+

+

+	if (anyMarked)

+	    (*pScreen->ValidateTree)(pWin, NullWindow, VTOther);

+    }

+

+    if (WasViewable)

+    {

+	if (anyMarked)

+	    (*pScreen->HandleExposures)(pWin);

+	if (anyMarked && pScreen->PostValidateTree)

+	    (*pScreen->PostValidateTree)(pWin, NullWindow, VTOther);

+    }

+    if (pWin->realized)

+	WindowsRestructured ();

+    FlushAllOutput ();

+}

+

+/*

+ * Function to enable/disable access to the frame buffer

+ *

+ * This is used when VT switching and when entering/leaving DGA direct mode.

+ *

+ * This has been rewritten again to eliminate the saved pixmap.  The

+ * devPrivate field in the screen pixmap is set to NULL to catch code

+ * accidentally referencing the frame buffer while the X server is not

+ * supposed to touch it.

+ *

+ * Here, we exchange the pixmap private data, rather than the pixmaps

+ * themselves to avoid having to find and change any references to the screen

+ * pixmap such as GC's, window privates etc.  This also means that this code

+ * does not need to know exactly how the pixmap pixels are accessed.  Further,

+ * this exchange is >not< done through the screen's ModifyPixmapHeader()

+ * vector.  This means the called frame buffer code layers can determine

+ * whether they are switched in or out by keeping track of the root pixmap's

+ * private data, and therefore don't need to access pScrnInfo->vtSema.

+ */

+void

+xf86EnableDisableFBAccess(int scrnIndex, Bool enable)

+{

+    ScrnInfoPtr pScrnInfo = xf86Screens[scrnIndex];

+    ScreenPtr pScreen = pScrnInfo->pScreen;

+    PixmapPtr pspix;

+

+    pspix = (*pScreen->GetScreenPixmap) (pScreen);

+    if (enable)

+    {

+	/*

+	 * Restore the screen pixmap devPrivate field

+	 */

+	pspix->devPrivate = pScrnInfo->pixmapPrivate;

+	/*

+	 * Restore all of the clip lists on the screen

+	 */

+	if (!xf86Resetting)

+	    xf86SetRootClip (pScreen, TRUE);

+

+    }

+    else

+    {

+	/*

+	 * Empty all of the clip lists on the screen

+	 */

+	xf86SetRootClip (pScreen, FALSE);

+	/*

+	 * save the screen pixmap devPrivate field and

+	 * replace it with NULL so accidental references

+	 * to the frame buffer are caught

+	 */

+	pScrnInfo->pixmapPrivate = pspix->devPrivate;

+	pspix->devPrivate.ptr = NULL;

+    }

+}

+

+/* Print driver messages in the standard format */

+

+#undef PREFIX_SIZE

+#define PREFIX_SIZE 14

+

+void

+xf86VDrvMsgVerb(int scrnIndex, MessageType type, int verb, const char *format,

+		va_list args)

+{

+    char *tmpFormat;

+

+    /* Prefix the scrnIndex name to the format string. */

+    if (scrnIndex >= 0 && scrnIndex < xf86NumScreens &&

+	xf86Screens[scrnIndex]->name) {

+	tmpFormat = malloc(strlen(format) +

+			   strlen(xf86Screens[scrnIndex]->name) +

+			   PREFIX_SIZE + 1);

+	if (!tmpFormat)

+	    return;

+

+	snprintf(tmpFormat, PREFIX_SIZE + 1, "%s(%d): ",

+		 xf86Screens[scrnIndex]->name, scrnIndex);

+

+	strcat(tmpFormat, format);

+	LogVMessageVerb(type, verb, tmpFormat, args);

+	free(tmpFormat);

+    } else

+	LogVMessageVerb(type, verb, format, args);

+}

+#undef PREFIX_SIZE

+

+/* Print driver messages, with verbose level specified directly */

+void

+xf86DrvMsgVerb(int scrnIndex, MessageType type, int verb, const char *format,

+	       ...)

+{

+    va_list ap;

+

+    va_start(ap, format);

+    xf86VDrvMsgVerb(scrnIndex, type, verb, format, ap);

+    va_end(ap);

+}

+

+/* Print driver messages, with verbose level of 1 (default) */

+void

+xf86DrvMsg(int scrnIndex, MessageType type, const char *format, ...)

+{

+    va_list ap;

+

+    va_start(ap, format);

+    xf86VDrvMsgVerb(scrnIndex, type, 1, format, ap);

+    va_end(ap);

+}

+

+/* Print non-driver messages with verbose level specified directly */

+void

+xf86MsgVerb(MessageType type, int verb, const char *format, ...)

+{

+    va_list ap;

+

+    va_start(ap, format);

+    xf86VDrvMsgVerb(-1, type, verb, format, ap);

+    va_end(ap);

+}

+

+/* Print non-driver messages with verbose level of 1 (default) */

+void

+xf86Msg(MessageType type, const char *format, ...)

+{

+    va_list ap;

+

+    va_start(ap, format);

+    xf86VDrvMsgVerb(-1, type, 1, format, ap);

+    va_end(ap);

+}

+

+/* Just like ErrorF, but with the verbose level checked */

+void

+xf86ErrorFVerb(int verb, const char *format, ...)

+{

+    va_list ap;

+

+    va_start(ap, format);

+    if (xf86Verbose >= verb || xf86LogVerbose >= verb)

+	LogVWrite(verb, format, ap);

+    va_end(ap);

+}

+

+/* Like xf86ErrorFVerb, but with an implied verbose level of 1 */

+void

+xf86ErrorF(const char *format, ...)

+{

+    va_list ap;

+

+    va_start(ap, format);

+    if (xf86Verbose >= 1 || xf86LogVerbose >= 1)

+	LogVWrite(1, format, ap);

+    va_end(ap);

+}

+

+

+void

+xf86LogInit(void)

+{

+    char *lf = NULL;

+

+#define LOGSUFFIX ".log"

+#define LOGOLDSUFFIX ".old"

+

+    /* Get the log file name */

+    if (xf86LogFileFrom == X_DEFAULT) {

+	/* Append the display number and ".log" */

+	lf = malloc(strlen(xf86LogFile) + strlen("%s") +

+		    strlen(LOGSUFFIX) + 1);

+	if (!lf)

+	    FatalError("Cannot allocate space for the log file name\n");

+	sprintf(lf, "%s%%s" LOGSUFFIX, xf86LogFile);

+	xf86LogFile = lf;

+    }

+

+    xf86LogFile = LogInit(xf86LogFile, LOGOLDSUFFIX);

+    xf86LogFileWasOpened = TRUE;

+

+    xf86SetVerbosity(xf86Verbose);

+    xf86SetLogVerbosity(xf86LogVerbose);

+

+#undef LOGSUFFIX

+#undef LOGOLDSUFFIX

+

+    free(lf);

+}

+

+void

+xf86CloseLog(void)

+{

+    LogClose();

+}

+

+

+/*

+ * Drivers can use these for using their own SymTabRecs.

+ */

+

+const char *

+xf86TokenToString(SymTabPtr table, int token)

+{

+    int i;

+

+    for (i = 0; table[i].token >= 0 && table[i].token != token; i++)

+	;

+

+    if (table[i].token < 0)

+	return NULL;

+    else

+	return(table[i].name);

+}

+

+int

+xf86StringToToken(SymTabPtr table, const char *string)

+{

+    int i;

+

+    if (string == NULL)

+	return -1;

+

+    for (i = 0; table[i].token >= 0 && xf86NameCmp(string, table[i].name); i++)

+	;

+

+    return(table[i].token);

+}

+

+/*

+ * helper to display the clocks found on a card

+ */

+void

+xf86ShowClocks(ScrnInfoPtr scrp, MessageType from)

+{

+    int j;

+

+    xf86DrvMsg(scrp->scrnIndex, from, "Pixel clocks available:");

+    for (j=0; j < scrp->numClocks; j++) {

+	if ((j % 4) == 0) {

+	    xf86ErrorF("\n");

+	    xf86DrvMsg(scrp->scrnIndex, from, "pixel clocks:");

+	}

+	xf86ErrorF(" %7.3f", (double)scrp->clock[j] / 1000.0);

+    }

+    xf86ErrorF("\n");

+}

+

+

+/*

+ * This prints out the driver identify message, including the names of

+ * the supported chipsets.

+ *

+ * XXX This makes assumptions about the line width, etc.  Maybe we could

+ * use a more general "pretty print" function for messages.

+ */

+void

+xf86PrintChipsets(const char *drvname, const char *drvmsg, SymTabPtr chips)

+{

+    int len, i;

+

+    len = 6 + strlen(drvname) + 2 + strlen(drvmsg) + 2;

+    xf86Msg(X_INFO, "%s: %s:", drvname, drvmsg);

+    for (i = 0; chips[i].name != NULL; i++) {

+	if (i != 0) {

+	    xf86ErrorF(",");

+	    len++;

+	}

+	if (len + 2 + strlen(chips[i].name) < 78) {

+	    xf86ErrorF(" ");

+	    len++;

+	} else {

+	    xf86ErrorF("\n\t");

+	    len = 8;

+	}

+	xf86ErrorF("%s", chips[i].name);

+	len += strlen(chips[i].name);

+    }

+    xf86ErrorF("\n");

+}

+

+

+int

+xf86MatchDevice(const char *drivername, GDevPtr **sectlist)

+{

+    GDevPtr       gdp, *pgdp = NULL;

+    confScreenPtr screensecptr;

+    int i,j;

+

+    if (sectlist)

+	*sectlist = NULL;

+

+    if (xf86DoConfigure && xf86DoConfigurePass1) return 1;

+

+    /*

+     * This is a very important function that matches the device sections

+     * as they show up in the config file with the drivers that the server

+     * loads at run time.

+     *

+     * ChipProbe can call

+     * int xf86MatchDevice(char * drivername, GDevPtr ** sectlist)

+     * with its driver name. The function allocates an array of GDevPtr and

+     * returns this via sectlist and returns the number of elements in

+     * this list as return value. 0 means none found, -1 means fatal error.

+     *

+     * It can figure out which of the Device sections to use for which card

+     * (using things like the Card statement, etc). For single headed servers

+     * there will of course be just one such Device section.

+     */

+    i = 0;

+

+    /*

+     * first we need to loop over all the Screens sections to get to all

+     * 'active' device sections

+     */

+    for (j=0; xf86ConfigLayout.screens[j].screen != NULL; j++) {

+        screensecptr = xf86ConfigLayout.screens[j].screen;

+        if ((screensecptr->device->driver != NULL)

+            && (xf86NameCmp( screensecptr->device->driver,drivername) == 0)

+            && (! screensecptr->device->claimed)) {

+            /*

+             * we have a matching driver that wasn't claimed, yet

+             */

+            pgdp = xnfrealloc(pgdp, (i + 2) * sizeof(GDevPtr));

+            pgdp[i++] = screensecptr->device;

+        }

+    }

+

+    /* Then handle the inactive devices */

+    j = 0;

+    while (xf86ConfigLayout.inactives[j].identifier) {

+	gdp = &xf86ConfigLayout.inactives[j];

+	if (gdp->driver && !gdp->claimed &&

+	    !xf86NameCmp(gdp->driver,drivername)) {

+	    /* we have a matching driver that wasn't claimed yet */

+	    pgdp = xnfrealloc(pgdp, (i + 2) * sizeof(GDevPtr));

+	    pgdp[i++] = gdp;

+	}

+	j++;

+    }

+

+    /*

+     * make the array NULL terminated and return its address

+     */

+    if (i)

+        pgdp[i] = NULL;

+

+    if (sectlist)

+	*sectlist = pgdp;

+    else

+	free(pgdp);

+    return i;

+}

+

+static Bool

+pciDeviceHasBars(struct pci_device *pci)

+{

+    int i;

+

+    for (i = 0; i < 6; i++)

+	if (pci->regions[i].size)

+	    return TRUE;

+

+    if (pci->rom_size)

+	return TRUE;

+

+    return FALSE;

+}

+

+struct Inst {

+    struct pci_device *	pci;

+    GDevPtr		dev;

+    Bool		foundHW;  /* PCIid in list of supported chipsets */

+    Bool		claimed;  /* BusID matches with a device section */

+    int 		chip;

+    int 		screen;

+};

+

+

+/**

+ * Find set of unclaimed devices matching a given vendor ID.

+ *

+ * Used by drivers to find as yet unclaimed devices matching the specified

+ * vendor ID.

+ *

+ * \param driverName     Name of the driver.  This is used to find Device

+ *                       sections in the config file.

+ * \param vendorID       PCI vendor ID of associated devices.  If zero, then

+ *                       the true vendor ID must be encoded in the \c PCIid

+ *                       fields of the \c PCIchipsets entries.

+ * \param chipsets       Symbol table used to associate chipset names with

+ *                       PCI IDs.

+ * \param devList        List of Device sections parsed from the config file.

+ * \param numDevs        Number of entries in \c devList.

+ * \param drvp           Pointer the driver's control structure.

+ * \param foundEntities  Returned list of entity indicies associated with the

+ *                       driver.

+ *

+ * \returns

+ * The number of elements in returned in \c foundEntities on success or zero

+ * on failure.

+ *

+ * \todo

+ * This function does a bit more than short description says.  Fill in some

+ * more of the details of its operation.

+ *

+ * \todo

+ * The \c driverName parameter is redundant.  It is the same as

+ * \c DriverRec::driverName.  In a future version of this function, remove

+ * that parameter.

+ */

+int

+xf86MatchPciInstances(const char *driverName, int vendorID,

+		      SymTabPtr chipsets, PciChipsets *PCIchipsets,

+		      GDevPtr *devList, int numDevs, DriverPtr drvp,

+		      int **foundEntities)

+{

+    int i,j;

+    struct pci_device * pPci;

+    struct pci_device_iterator *iter;

+    struct Inst *instances = NULL;

+    int numClaimedInstances = 0;

+    int allocatedInstances = 0;

+    int numFound = 0;

+    SymTabRec *c;

+    PciChipsets *id;

+    int *retEntities = NULL;

+

+    *foundEntities = NULL;

+

+

+    /* Each PCI device will contribute at least one entry.  Each device

+     * section can contribute at most one entry.  The sum of the two is

+     * guaranteed to be larger than the maximum possible number of entries.

+     * Do this calculation and memory allocation once now to eliminate the

+     * need for realloc calls inside the loop.

+     */

+    if (!(xf86DoConfigure && xf86DoConfigurePass1)) {

+	unsigned max_entries = numDevs;

+

+	iter = pci_slot_match_iterator_create(NULL);

+	while ((pPci = pci_device_next(iter)) != NULL) {

+	    max_entries++;

+	}

+

+	pci_iterator_destroy(iter);

+	instances = xnfalloc(max_entries * sizeof(struct Inst));

+    }

+

+    iter = pci_slot_match_iterator_create(NULL);

+    while ((pPci = pci_device_next(iter)) != NULL) {

+	unsigned device_class = pPci->device_class;

+	Bool foundVendor = FALSE;

+

+

+	/* Convert the pre-PCI 2.0 device class for a VGA adapter to the

+	 * 2.0 version of the same class.

+	 */

+	if ( device_class == 0x00000101 ) {

+	    device_class = 0x00030000;

+	}

+

+

+	/* Find PCI devices that match the given vendor ID.  The vendor ID is

+	 * either specified explicitly as a parameter to the function or

+	 * implicitly encoded in the high bits of id->PCIid.

+	 *

+	 * The first device with a matching vendor is recorded, even if the

+	 * device ID doesn't match.  This is done because the Device section

+	 * in the xorg.conf file can over-ride the device ID.  A matching PCI

+	 * ID might not be found now, but after the device ID over-ride is

+	 * applied there /might/ be a match.

+	 */

+	for (id = PCIchipsets; id->PCIid != -1; id++) {

+	    const unsigned vendor_id = ((id->PCIid & 0xFFFF0000) >> 16)

+		| vendorID;

+	    const unsigned device_id = (id->PCIid & 0x0000FFFF);

+	    const unsigned match_class = 0x00030000 | id->PCIid;

+

+	    if ((vendor_id == pPci->vendor_id)

+		|| ((vendorID == PCI_VENDOR_GENERIC) && (match_class == device_class))) {

+		if (!foundVendor && (instances != NULL)) {

+		    ++allocatedInstances;

+		    instances[allocatedInstances - 1].pci = pPci;

+		    instances[allocatedInstances - 1].dev = NULL;

+		    instances[allocatedInstances - 1].claimed = FALSE;

+		    instances[allocatedInstances - 1].foundHW = FALSE;

+		    instances[allocatedInstances - 1].screen = 0;

+		}

+

+		foundVendor = TRUE;

+

+		if ( (device_id == pPci->device_id)

+		     || ((vendorID == PCI_VENDOR_GENERIC) 

+			 && (match_class == device_class)) ) {

+		    if ( instances != NULL ) {

+			instances[allocatedInstances - 1].foundHW = TRUE;

+			instances[allocatedInstances - 1].chip = id->numChipset;

+		    }

+

+

+		    if ( xf86DoConfigure && xf86DoConfigurePass1 ) {

+			if (xf86CheckPciSlot(pPci)) {

+			    GDevPtr pGDev = 

+			      xf86AddBusDeviceToConfigure(drvp->driverName,

+							  BUS_PCI, pPci, -1);

+			    if (pGDev) {

+				/* After configure pass 1, chipID and chipRev

+				 * are treated as over-rides, so clobber them

+				 * here.

+				 */

+				pGDev->chipID = -1;

+				pGDev->chipRev = -1;

+			    }

+

+			    numFound++;

+			}

+		    }

+		    else {

+			numFound++;

+		    }

+

+		    break;

+		}

+	    }

+	}

+    }

+

+    pci_iterator_destroy(iter);

+

+

+    /* In "probe only" or "configure" mode (signaled by instances being NULL),

+     * our work is done.  Return the number of detected devices.

+     */

+    if ( instances == NULL ) {

+	return numFound;

+    }

+

+

+    /*

+     * This may be debatable, but if no PCI devices with a matching vendor

+     * type is found, return zero now.  It is probably not desirable to

+     * allow the config file to override this.

+     */

+    if (allocatedInstances <= 0) {

+	free(instances);

+	return 0;

+    }

+

+

+    DebugF("%s instances found: %d\n", driverName, allocatedInstances);

+

+   /*

+    * Check for devices that need duplicated instances.  This is required

+    * when there is more than one screen per entity.

+    *

+    * XXX This currently doesn't work for cases where the BusID isn't

+    * specified explicitly in the config file.

+    */

+

+    for (j = 0; j < numDevs; j++) {

+        if (devList[j]->screen > 0 && devList[j]->busID

+	    && *devList[j]->busID) {

+	    for (i = 0; i < allocatedInstances; i++) {

+	        pPci = instances[i].pci;

+	        if (xf86ComparePciBusString(devList[j]->busID, 

+					    PCI_MAKE_BUS( pPci->domain, pPci->bus ),

+					    pPci->dev,

+					    pPci->func)) {

+		    allocatedInstances++;

+		    instances[allocatedInstances - 1] = instances[i];

+		    instances[allocatedInstances - 1].screen =

+		      				devList[j]->screen;

+		    numFound++;

+		    break;

+		}

+	    }

+	}

+    }

+

+    for (i = 0; i < allocatedInstances; i++) {

+	GDevPtr dev = NULL;

+	GDevPtr devBus = NULL;

+

+	pPci = instances[i].pci;

+	for (j = 0; j < numDevs; j++) {

+	    if (devList[j]->busID && *devList[j]->busID) {

+		if (xf86ComparePciBusString(devList[j]->busID, 

+					    PCI_MAKE_BUS( pPci->domain, pPci->bus ),

+					    pPci->dev,

+					    pPci->func) &&

+		    devList[j]->screen == instances[i].screen) {

+

+		    if (devBus)

+                        xf86MsgVerb(X_WARNING,0,

+			    "%s: More than one matching Device section for "

+			    "instances\n\t(BusID: %s) found: %s\n",

+			    driverName, devList[j]->busID,

+			    devList[j]->identifier);

+		    else

+			devBus = devList[j];

+		}

+	    } else {

+		/*

+		 * if device section without BusID is found

+		 * only assign to it to the primary device.

+		 */

+		if (xf86IsPrimaryPci(pPci)) {

+		    xf86Msg(X_PROBED, "Assigning device section with no busID"

+			    " to primary device\n");

+		    if (dev || devBus)

+			xf86MsgVerb(X_WARNING, 0,

+			    "%s: More than one matching Device section "

+			    "found: %s\n", driverName, devList[j]->identifier);

+		    else

+			dev = devList[j];

+		}

+	    }

+	}

+	if (devBus) dev = devBus;  /* busID preferred */

+	if (!dev) {

+	    if (xf86CheckPciSlot(pPci) && pciDeviceHasBars(pPci)) {

+		xf86MsgVerb(X_WARNING, 0, "%s: No matching Device section "

+			    "for instance (BusID PCI:%u@%u:%u:%u) found\n",

+			    driverName, pPci->domain, pPci->bus, pPci->dev,

+			    pPci->func);

+	    }

+	} else {

+	    numClaimedInstances++;

+	    instances[i].claimed = TRUE;

+	    instances[i].dev = dev;

+	}

+    }

+    DebugF("%s instances found: %d\n", driverName, numClaimedInstances);

+    /*

+     * Now check that a chipset or chipID override in the device section

+     * is valid.  Chipset has precedence over chipID.

+     * If chipset is not valid ignore BusSlot completely.

+     */

+    for (i = 0; i < allocatedInstances && numClaimedInstances > 0; i++) {

+	MessageType from = X_PROBED;

+

+	if (!instances[i].claimed) {

+	    continue;

+	}

+	if (instances[i].dev->chipset) {

+	    for (c = chipsets; c->token >= 0; c++) {

+		if (xf86NameCmp(c->name, instances[i].dev->chipset) == 0)

+		    break;

+	    }

+	    if (c->token == -1) {

+		instances[i].claimed = FALSE;

+		numClaimedInstances--;

+		xf86MsgVerb(X_WARNING, 0, "%s: Chipset \"%s\" in Device "

+			    "section \"%s\" isn't valid for this driver\n",

+			    driverName, instances[i].dev->chipset,

+			    instances[i].dev->identifier);

+	    } else {

+		instances[i].chip = c->token;

+

+		for (id = PCIchipsets; id->numChipset >= 0; id++) {

+		    if (id->numChipset == instances[i].chip)

+			break;

+		}

+		if(id->numChipset >=0){

+		    xf86Msg(X_CONFIG,"Chipset override: %s\n",

+			     instances[i].dev->chipset);

+		    from = X_CONFIG;

+		} else {

+		    instances[i].claimed = FALSE;

+		    numClaimedInstances--;

+		    xf86MsgVerb(X_WARNING, 0, "%s: Chipset \"%s\" in Device "

+				"section \"%s\" isn't a valid PCI chipset\n",

+				driverName, instances[i].dev->chipset,

+				instances[i].dev->identifier);

+		}

+	    }

+	} else if (instances[i].dev->chipID > 0) {

+	    for (id = PCIchipsets; id->numChipset >= 0; id++) {

+		if (id->PCIid == instances[i].dev->chipID)

+		    break;

+	    }

+	    if (id->numChipset == -1) {

+		instances[i].claimed = FALSE;

+		numClaimedInstances--;

+		xf86MsgVerb(X_WARNING, 0, "%s: ChipID 0x%04X in Device "

+			    "section \"%s\" isn't valid for this driver\n",

+			    driverName, instances[i].dev->chipID,

+			    instances[i].dev->identifier);

+	    } else {

+		instances[i].chip = id->numChipset;

+

+		xf86Msg( X_CONFIG,"ChipID override: 0x%04X\n",

+			 instances[i].dev->chipID);

+		from = X_CONFIG;

+	    }

+	} else if (!instances[i].foundHW) {

+	    /*

+	     * This means that there was no override and the PCI chipType

+	     * doesn't match one that is supported

+	     */

+	    instances[i].claimed = FALSE;

+	    numClaimedInstances--;

+	}

+	if (instances[i].claimed == TRUE){

+	    for (c = chipsets; c->token >= 0; c++) {

+		if (c->token == instances[i].chip)

+		    break;

+	    }

+	    xf86Msg(from,"Chipset %s found\n",

+		    c->name);

+	}

+    }

+

+    /*

+     * Of the claimed instances, check that another driver hasn't already

+     * claimed its slot.

+     */

+    numFound = 0;

+    for (i = 0; i < allocatedInstances && numClaimedInstances > 0; i++) {

+	

+	if (!instances[i].claimed)

+	    continue;

+	pPci = instances[i].pci;

+

+

+        /*

+	 * Allow the same entity to be used more than once for devices with

+	 * multiple screens per entity.  This assumes implicitly that there

+	 * will be a screen == 0 instance.

+	 *

+	 * XXX Need to make sure that two different drivers don't claim

+	 * the same screen > 0 instance.

+	 */

+        if (instances[i].screen == 0 && !xf86CheckPciSlot( pPci ))

+	    continue;

+

+	DebugF("%s: card at %d:%d:%d is claimed by a Device section\n",

+	       driverName, pPci->bus, pPci->dev, pPci->func);

+

+	/* Allocate an entry in the lists to be returned */

+	numFound++;

+	retEntities = xnfrealloc(retEntities, numFound * sizeof(int));

+	retEntities[numFound - 1] = xf86ClaimPciSlot( pPci, drvp,

+						      instances[i].chip,

+						      instances[i].dev,

+						      instances[i].dev->active);

+        if (retEntities[numFound - 1] == -1 && instances[i].screen > 0) {

+	    for (j = 0; j < xf86NumEntities; j++) {

+	        EntityPtr pEnt = xf86Entities[j];

+	        if (pEnt->bus.type != BUS_PCI)

+		    continue;

+	        if (pEnt->bus.id.pci == pPci) {

+		    retEntities[numFound - 1] = j;

+		    xf86AddDevToEntity(j, instances[i].dev);

+		    break;

+		}

+	    }

+	}

+    }

+    free(instances);

+    if (numFound > 0) {

+	*foundEntities = retEntities;

+    }

+	

+    return numFound;

+}

+

+/*

+ * xf86GetClocks -- get the dot-clocks via a BIG BAD hack ...

+ */

+void

+xf86GetClocks(ScrnInfoPtr pScrn, int num, Bool (*ClockFunc)(ScrnInfoPtr, int),

+	      void (*ProtectRegs)(ScrnInfoPtr, Bool),

+	      void (*BlankScreen)(ScrnInfoPtr, Bool), IOADDRESS vertsyncreg,

+	      int maskval, int knownclkindex, int knownclkvalue)

+{

+    register int status = vertsyncreg;

+    unsigned long i, cnt, rcnt, sync;

+

+    /* First save registers that get written on */

+    (*ClockFunc)(pScrn, CLK_REG_SAVE);

+

+    if (num > MAXCLOCKS)

+	num = MAXCLOCKS;

+

+    for (i = 0; i < num; i++)

+    {

+	if (ProtectRegs)

+	    (*ProtectRegs)(pScrn, TRUE);

+	if (!(*ClockFunc)(pScrn, i))

+	{

+	    pScrn->clock[i] = -1;

+	    continue;

+	}

+	if (ProtectRegs)

+	    (*ProtectRegs)(pScrn, FALSE);

+	if (BlankScreen)

+	    (*BlankScreen)(pScrn, FALSE);

+

+    	usleep(50000);     /* let VCO stabilise */

+

+    	cnt  = 0;

+    	sync = 200000;

+

+	while ((inb(status) & maskval) == 0x00)

+	    if (sync-- == 0) goto finish;

+	/* Something appears to be happening, so reset sync count */

+	sync = 200000;

+	while ((inb(status) & maskval) == maskval)

+	    if (sync-- == 0) goto finish;

+	/* Something appears to be happening, so reset sync count */

+	sync = 200000;

+	while ((inb(status) & maskval) == 0x00)

+	    if (sync-- == 0) goto finish;

+

+	for (rcnt = 0; rcnt < 5; rcnt++)

+	{

+	    while (!(inb(status) & maskval))

+		cnt++;

+	    while ((inb(status) & maskval))

+		cnt++;

+	}

+

+finish:

+	pScrn->clock[i] = cnt ? cnt : -1;

+	if (BlankScreen)

+            (*BlankScreen)(pScrn, TRUE);

+    }

+

+    for (i = 0; i < num; i++)

+    {

+	if (i != knownclkindex)

+	{

+	    if (pScrn->clock[i] == -1)

+	    {

+		pScrn->clock[i] = 0;

+	    }

+	    else

+	    {

+		pScrn->clock[i] = (int)(0.5 +

+                    (((float)knownclkvalue) * pScrn->clock[knownclkindex]) /

+	            (pScrn->clock[i]));

+		/* Round to nearest 10KHz */

+		pScrn->clock[i] += 5;

+		pScrn->clock[i] /= 10;

+		pScrn->clock[i] *= 10;

+	    }

+	}

+    }

+

+    pScrn->clock[knownclkindex] = knownclkvalue;

+    pScrn->numClocks = num;

+

+    /* Restore registers that were written on */

+    (*ClockFunc)(pScrn, CLK_REG_RESTORE);

+}

+

+const char *

+xf86GetVisualName(int visual)

+{

+    if (visual < 0 || visual > DirectColor)

+	return NULL;

+

+    return xf86VisualNames[visual];

+}

+

+

+int

+xf86GetVerbosity(void)

+{

+    return max(xf86Verbose, xf86LogVerbose);

+}

+

+Pix24Flags

+xf86GetPix24(void)

+{

+    return xf86Info.pixmap24;

+}

+

+

+int

+xf86GetDepth(void)

+{

+    return xf86Depth;

+}

+

+

+rgb

+xf86GetWeight(void)

+{

+    return xf86Weight;

+}

+

+

+Gamma

+xf86GetGamma(void)

+{

+    return xf86Gamma;

+}

+

+

+Bool

+xf86GetFlipPixels(void)

+{

+    return xf86FlipPixels;

+}

+

+

+const char *

+xf86GetServerName(void)

+{

+    return xf86ServerName;

+}

+

+

+Bool

+xf86ServerIsExiting(void)

+{

+    return (dispatchException & DE_TERMINATE) == DE_TERMINATE;

+}

+

+

+Bool

+xf86ServerIsResetting(void)

+{

+    return xf86Resetting;

+}

+

+

+Bool

+xf86ServerIsInitialising(void)

+{

+    return xf86Initialising;

+}

+

+

+Bool

+xf86ServerIsOnlyDetecting(void)

+{

+    return xf86DoConfigure;

+}

+

+

+Bool

+xf86CaughtSignal(void)

+{

+    return xf86Info.caughtSignal;

+}

+

+

+Bool

+xf86GetVidModeAllowNonLocal(void)

+{

+    return xf86Info.vidModeAllowNonLocal;

+}

+

+

+Bool

+xf86GetVidModeEnabled(void)

+{

+    return xf86Info.vidModeEnabled;

+}

+

+Bool

+xf86GetModInDevAllowNonLocal(void)

+{

+    return xf86Info.miscModInDevAllowNonLocal;

+}

+

+

+Bool

+xf86GetModInDevEnabled(void)

+{

+    return xf86Info.miscModInDevEnabled;

+}

+

+

+Bool

+xf86GetAllowMouseOpenFail(void)

+{

+    return xf86Info.allowMouseOpenFail;

+}

+

+

+Bool

+xf86IsPc98(void)

+{

+#if SUPPORT_PC98

+    return xf86Info.pc98;

+#else

+    return FALSE;

+#endif

+}

+

+void

+xf86DisableRandR(void)

+{

+    xf86Info.disableRandR = TRUE;

+    xf86Info.randRFrom = X_PROBED;

+}

+

+CARD32

+xf86GetModuleVersion(pointer module)

+{

+    return (CARD32)LoaderGetModuleVersion(module);

+}

+

+pointer

+xf86LoadDrvSubModule(DriverPtr drv, const char *name)

+{

+    pointer ret;

+    int errmaj = 0, errmin = 0;

+

+    ret = LoadSubModule(drv->module, name, NULL, NULL, NULL, NULL,

+			&errmaj, &errmin);

+    if (!ret)

+	LoaderErrorMsg(NULL, name, errmaj, errmin);

+    return ret;

+}

+

+pointer

+xf86LoadSubModule(ScrnInfoPtr pScrn, const char *name)

+{

+    pointer ret;

+    int errmaj = 0, errmin = 0;

+

+    ret = LoadSubModule(pScrn->module, name, NULL, NULL, NULL, NULL,

+			&errmaj, &errmin);

+    if (!ret)

+	LoaderErrorMsg(pScrn->name, name, errmaj, errmin);

+    return ret;

+}

+

+/*

+ * xf86LoadOneModule loads a single module.

+ */

+pointer

+xf86LoadOneModule(char *name, pointer opt)

+{

+    int errmaj, errmin;

+    char *Name;

+    pointer mod;

+

+    if (!name)

+	return NULL;

+

+    /* Normalise the module name */

+    Name = xf86NormalizeName(name);

+

+    /* Skip empty names */

+    if (Name == NULL)

+	return NULL;

+    if (*Name == '\0') {

+	free(Name);

+	return NULL;

+    }

+

+    mod = LoadModule(Name, NULL, NULL, NULL, opt, NULL, &errmaj, &errmin);

+    if (!mod)

+	LoaderErrorMsg(NULL, Name, errmaj, errmin);

+    free(Name);

+    return mod;

+}

+

+void

+xf86UnloadSubModule(pointer mod)

+{

+    /*

+     * This is disabled for now.  The loader isn't smart enough yet to undo

+     * relocations.

+     */

+#if 0

+    UnloadSubModule(mod);

+#endif

+}

+

+Bool

+xf86LoaderCheckSymbol(const char *name)

+{

+    return LoaderSymbol(name) != NULL;

+}

+

+typedef enum {

+   OPTION_BACKING_STORE

+} BSOpts;

+

+static const OptionInfoRec BSOptions[] = {

+   { OPTION_BACKING_STORE, "BackingStore", OPTV_BOOLEAN, {0}, FALSE },

+   { -1,                   NULL,           OPTV_NONE,    {0}, FALSE }

+};

+

+void

+xf86SetBackingStore(ScreenPtr pScreen)

+{

+    Bool useBS = FALSE;

+    MessageType from = X_DEFAULT;

+    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];

+    OptionInfoPtr options;

+

+    options = xnfalloc(sizeof(BSOptions));

+    (void)memcpy(options, BSOptions, sizeof(BSOptions));

+    xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, options);

+

+    /* check for commandline option here */

+    if (xf86bsEnableFlag) {

+	from = X_CMDLINE;

+	useBS = TRUE;

+    } else if (xf86bsDisableFlag) {

+	from = X_CMDLINE;

+	useBS = FALSE;

+    } else {

+	if (xf86GetOptValBool(options, OPTION_BACKING_STORE, &useBS))

+	    from = X_CONFIG;

+    }

+    free(options);

+    pScreen->backingStoreSupport = useBS ? Always : NotUseful;

+    if (serverGeneration == 1)

+	xf86DrvMsg(pScreen->myNum, from, "Backing store %s\n",

+		   useBS ? "enabled" : "disabled");

+}

+

+

+typedef enum {

+   OPTION_SILKEN_MOUSE

+} SMOpts;

+

+static const OptionInfoRec SMOptions[] = {

+   { OPTION_SILKEN_MOUSE, "SilkenMouse",   OPTV_BOOLEAN, {0}, FALSE },

+   { -1,                   NULL,           OPTV_NONE,    {0}, FALSE }

+};

+

+void

+xf86SetSilkenMouse (ScreenPtr pScreen)

+{

+    Bool useSM = TRUE;

+    MessageType from = X_DEFAULT;

+    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];

+    OptionInfoPtr options;

+

+    options = xnfalloc(sizeof(SMOptions));

+    (void)memcpy(options, SMOptions, sizeof(SMOptions));

+    xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, options);

+

+    /* check for commandline option here */

+    /* disable if screen shares resources */

+	/* TODO VGA arb disable silken mouse */

+    if (xf86silkenMouseDisableFlag) {

+        from = X_CMDLINE;

+	useSM = FALSE;

+    } else {

+	if (xf86GetOptValBool(options, OPTION_SILKEN_MOUSE, &useSM))

+	    from = X_CONFIG;

+    }

+    free(options);

+    /*

+     * XXX quick hack to report correctly for OSs that can't do SilkenMouse

+     * yet.  Should handle this differently so that alternate async methods

+     * work correctly with this too.

+     */

+    pScrn->silkenMouse = useSM && xf86Info.useSIGIO && xf86SIGIOSupported();

+    if (serverGeneration == 1)

+	xf86DrvMsg(pScreen->myNum, from, "Silken mouse %s\n",

+		   pScrn->silkenMouse ? "enabled" : "disabled");

+}

+

+/* Wrote this function for the PM2 Xv driver, preliminary. */

+

+pointer

+xf86FindXvOptions(int scrnIndex, int adaptor_index, char *port_name,

+		  char **adaptor_name, pointer *adaptor_options)

+{

+    ScrnInfoPtr pScrn = xf86Screens[scrnIndex];

+    confXvAdaptorPtr adaptor;

+    int i;

+

+    if (adaptor_index >= pScrn->confScreen->numxvadaptors) {

+	if (adaptor_name) *adaptor_name = NULL;

+	if (adaptor_options) *adaptor_options = NULL;

+	return NULL;

+    }

+

+    adaptor = &pScrn->confScreen->xvadaptors[adaptor_index];

+    if (adaptor_name) *adaptor_name = adaptor->identifier;

+    if (adaptor_options) *adaptor_options = adaptor->options;

+

+    for (i = 0; i < adaptor->numports; i++)

+	if (!xf86NameCmp(adaptor->ports[i].identifier, port_name))

+	    return adaptor->ports[i].options;

+

+    return NULL;

+}

+

+/* Rather than duplicate loader's get OS function, just include it directly */

+#define LoaderGetOS xf86GetOS

+#include "loader/os.c"

+

+/* new RAC */

+/*

+ * xf86ConfigPciEntityInactive() -- This function can be used

+ * to configure an inactive entity as well as to reconfigure an

+ * previously active entity inactive. If the entity has been

+ * assigned to a screen before it will be removed. If p_chip is

+ * non-NULL all static resources listed there will be registered.

+ */

+static void

+xf86ConfigPciEntityInactive(EntityInfoPtr pEnt, PciChipsets *p_chip,

+			    EntityProc init, EntityProc enter,

+			    EntityProc leave, pointer private)

+{

+    ScrnInfoPtr pScrn;

+

+    if ((pScrn = xf86FindScreenForEntity(pEnt->index)))

+	xf86RemoveEntityFromScreen(pScrn,pEnt->index);

+

+    /* shared resources are only needed when entity is active: remove */

+    xf86SetEntityFuncs(pEnt->index,init,enter,leave,private);

+}

+

+static void

+xf86ConfigFbEntityInactive(EntityInfoPtr pEnt, EntityProc init,

+			   EntityProc enter, EntityProc leave, pointer private)

+{

+    ScrnInfoPtr pScrn;

+

+    if ((pScrn = xf86FindScreenForEntity(pEnt->index)))

+	xf86RemoveEntityFromScreen(pScrn,pEnt->index);

+    xf86SetEntityFuncs(pEnt->index,init,enter,leave,private);

+}

+

+ScrnInfoPtr

+xf86ConfigPciEntity(ScrnInfoPtr pScrn, int scrnFlag, int entityIndex,

+			  PciChipsets *p_chip, void *dummy, EntityProc init,

+			  EntityProc enter, EntityProc leave, pointer private)

+{

+    EntityInfoPtr pEnt = xf86GetEntityInfo(entityIndex);

+    if (!pEnt) return pScrn;

+

+    if (!(pEnt->location.type == BUS_PCI)

+	|| !xf86GetPciInfoForEntity(entityIndex)) {

+	free(pEnt);

+	return pScrn;

+    }

+    if (!pEnt->active) {

+	xf86ConfigPciEntityInactive(pEnt, p_chip, init,  enter,

+				    leave,  private);

+	free(pEnt);

+	return pScrn;

+    }

+

+    if (!pScrn)

+	pScrn = xf86AllocateScreen(pEnt->driver,scrnFlag);

+    if (xf86IsEntitySharable(entityIndex)) {

+        xf86SetEntityShared(entityIndex);

+    }

+    xf86AddEntityToScreen(pScrn,entityIndex);

+    if (xf86IsEntityShared(entityIndex)) {

+        return pScrn;

+    }

+    free(pEnt);

+

+    xf86SetEntityFuncs(entityIndex,init,enter,leave,private);

+

+    return pScrn;

+}

+

+ScrnInfoPtr

+xf86ConfigFbEntity(ScrnInfoPtr pScrn, int scrnFlag, int entityIndex,

+		   EntityProc init, EntityProc enter, EntityProc leave,

+		   pointer private)

+{

+    EntityInfoPtr pEnt = xf86GetEntityInfo(entityIndex);

+    if (!pEnt) return pScrn;

+

+    if (!(pEnt->location.type == BUS_NONE)) {

+	free(pEnt);

+	return pScrn;

+    }

+

+    if (!pEnt->active) {

+	xf86ConfigFbEntityInactive(pEnt, init,  enter, leave,  private);

+	free(pEnt);

+	return pScrn;

+    }

+

+    if (!pScrn)

+	pScrn = xf86AllocateScreen(pEnt->driver,scrnFlag);

+    xf86AddEntityToScreen(pScrn,entityIndex);

+

+    xf86SetEntityFuncs(entityIndex,init,enter,leave,private);

+

+    return pScrn;

+}

+

+/*

+ *

+ *  OBSOLETE ! xf86ConfigActivePciEntity() is an obsolete function.

+ *             It is likely to be removed. Don't use!

+ */

+

+Bool

+xf86ConfigActivePciEntity(ScrnInfoPtr pScrn, int entityIndex,

+                          PciChipsets *p_chip, void *dummy, EntityProc init,

+                          EntityProc enter, EntityProc leave, pointer private)

+{

+    EntityInfoPtr pEnt = xf86GetEntityInfo(entityIndex);

+    if (!pEnt) return FALSE;

+

+    if (!pEnt->active || !(pEnt->location.type == BUS_PCI)) {

+        free(pEnt);

+        return FALSE;

+    }

+    xf86AddEntityToScreen(pScrn,entityIndex);

+

+    free(pEnt);

+    if (!xf86SetEntityFuncs(entityIndex,init,enter,leave,private))

+        return FALSE;

+

+    return TRUE;

+}

+

+Bool

+xf86IsScreenPrimary(int scrnIndex)

+{

+    ScrnInfoPtr pScrn = xf86Screens[scrnIndex];

+    int i;

+

+    for (i=0 ; i < pScrn->numEntities; i++) {

+	if (xf86IsEntityPrimary(i))

+	    return TRUE;

+    }

+    return FALSE;

+}

+

+int

+xf86RegisterRootWindowProperty(int ScrnIndex, Atom property, Atom type,

+			       int format, unsigned long len, pointer value )

+{

+    RootWinPropPtr pNewProp = NULL, pRegProp;

+    int i;

+    Bool existing = FALSE;

+

+    DebugF("xf86RegisterRootWindowProperty(%d, %ld, %ld, %d, %ld, %p)\n",

+	   ScrnIndex, property, type, format, len, value);

+

+    if (ScrnIndex<0 || ScrnIndex>=xf86NumScreens) {

+      return(BadMatch);

+    }

+

+    if (xf86RegisteredPropertiesTable &&

+	xf86RegisteredPropertiesTable[ScrnIndex]) {

+      for (pNewProp = xf86RegisteredPropertiesTable[ScrnIndex];

+	   pNewProp; pNewProp = pNewProp->next) {

+	if (strcmp(pNewProp->name, NameForAtom(property)) == 0)

+	  break;

+      }

+    }

+

+    if (!pNewProp) {

+      if ((pNewProp = (RootWinPropPtr)malloc(sizeof(RootWinProp))) == NULL) {

+	return(BadAlloc);

+      }

+      /*

+       * We will put this property at the end of the list so that

+       * the changes are made in the order they were requested.

+       */

+      pNewProp->next = NULL;

+    } else {

+      if (pNewProp->name)

+	free(pNewProp->name);

+      existing = TRUE;

+    }

+

+    pNewProp->name = xnfstrdup(NameForAtom(property));

+    pNewProp->type = type;

+    pNewProp->format = format;

+    pNewProp->size = len;

+    pNewProp->data = value;

+

+    DebugF("new property filled\n");

+

+    if (NULL==xf86RegisteredPropertiesTable) {

+      DebugF("creating xf86RegisteredPropertiesTable[] size %d\n",

+	     xf86NumScreens);

+      if ( NULL==(xf86RegisteredPropertiesTable=(RootWinPropPtr*)xnfcalloc(sizeof(RootWinProp),xf86NumScreens) )) {

+	return(BadAlloc);

+      }

+      for (i=0; i<xf86NumScreens; i++) {

+	xf86RegisteredPropertiesTable[i] = NULL;

+      }

+    }

+

+    DebugF("xf86RegisteredPropertiesTable %p\n",

+	   (void *)xf86RegisteredPropertiesTable);

+    DebugF("xf86RegisteredPropertiesTable[%d] %p\n",

+	   ScrnIndex, (void *)xf86RegisteredPropertiesTable[ScrnIndex]);

+

+    if (!existing) {

+      if ( xf86RegisteredPropertiesTable[ScrnIndex] == NULL) {

+	xf86RegisteredPropertiesTable[ScrnIndex] = pNewProp;

+      } else {

+	pRegProp = xf86RegisteredPropertiesTable[ScrnIndex];

+	while (pRegProp->next != NULL) {

+	  DebugF("- next %p\n", (void *)pRegProp);

+	  pRegProp = pRegProp->next;

+        }

+	pRegProp->next = pNewProp;

+      }

+    }

+    DebugF("xf86RegisterRootWindowProperty succeeded\n");

+    return(Success);

+}

+

+Bool

+xf86IsUnblank(int mode)

+{

+    switch(mode) {

+    case SCREEN_SAVER_OFF:

+    case SCREEN_SAVER_FORCER:

+	return TRUE;

+    case SCREEN_SAVER_ON:

+    case SCREEN_SAVER_CYCLE:

+	return FALSE;

+    default:

+	xf86MsgVerb(X_WARNING, 0, "Unexpected save screen mode: %d\n", mode);

+	return TRUE;

+    }

+}

+

+void

+xf86MotionHistoryAllocate(LocalDevicePtr local)

+{

+    AllocateMotionHistory(local->dev);

+}