Merge remote-tracking branch 'origin/released'

Conflicts:
	xorg-server/glx/glxdriswrast.c
	xorg-server/glx/single2.c
	xorg-server/hw/xwin/winconfig.c
	xorg-server/os/osinit.c
	xorg-server/os/xdmcp.c
	xorg-server/xkb/xkbInit.c

41 files changed, 4466 insertions, 4548 deletions

diff --git a/xorg-server/hw/xfree86/common/Makefile.am b/xorg-server/hw/xfree86/common/Makefile.am
index a27372103..27921777d 100644
--- a/xorg-server/hw/xfree86/common/Makefile.am
+++ b/xorg-server/hw/xfree86/common/Makefile.am
@@ -35,7 +35,7 @@ xf86DefModeSet.c: $(srcdir)/modeline2c.awk $(MODEDEFSOURCES)
 BUILT_SOURCES = xf86DefModeSet.c
 
 AM_LDFLAGS = -r
-libcommon_la_SOURCES = xf86Configure.c xf86ShowOpts.c xf86Bus.c xf86Config.c \
+libcommon_la_SOURCES = xf86Configure.c xf86Bus.c xf86Config.c \
                       xf86Cursor.c $(DGASOURCES) xf86DPMS.c \
                       xf86Events.c xf86Globals.c xf86AutoConfig.c \
                       xf86Option.c xf86Init.c \
diff --git a/xorg-server/hw/xfree86/common/xf86.h b/xorg-server/hw/xfree86/common/xf86.h
index 3185baf3a..f216d5e8c 100644
--- a/xorg-server/hw/xfree86/common/xf86.h
+++ b/xorg-server/hw/xfree86/common/xf86.h
@@ -104,7 +104,6 @@ extern _X_EXPORT Bool xf86ParsePciBusString(const char *busID, int *bus,
                                             int *device, int *func);
 extern _X_EXPORT Bool xf86ComparePciBusString(const char *busID, int bus,
                                               int device, int func);
-extern _X_EXPORT void xf86FormatPciBusNumber(int busnum, char *buffer);
 extern _X_EXPORT Bool xf86IsPrimaryPci(struct pci_device * pPci);
 extern _X_EXPORT Bool xf86CheckPciMemBase(struct pci_device * pPci,
                                           memType base);
diff --git a/xorg-server/hw/xfree86/common/xf86AutoConfig.c b/xorg-server/hw/xfree86/common/xf86AutoConfig.c
index 7fc6518d3..0c465682a 100644
--- a/xorg-server/hw/xfree86/common/xf86AutoConfig.c
+++ b/xorg-server/hw/xfree86/common/xf86AutoConfig.c
@@ -267,6 +267,7 @@ listPossibleVideoDrivers(char *matches[], int nmatches)
 #endif
     }
 
+#if !defined(sun)
     /* Fallback to platform default frame buffer driver */
     if (i < (nmatches - 1)) {
 #if !defined(__linux__) && defined(__sparc__)
@@ -275,6 +276,7 @@ listPossibleVideoDrivers(char *matches[], int nmatches)
 	matches[i++] = xnfstrdup("fbdev");
 #endif
     }
+#endif /* !sun */
 }
 
 /* copy a screen section and enter the desired driver
diff --git a/xorg-server/hw/xfree86/common/xf86Config.c b/xorg-server/hw/xfree86/common/xf86Config.c
index cb4be4210..fef4bf1fe 100644
--- a/xorg-server/hw/xfree86/common/xf86Config.c
+++ b/xorg-server/hw/xfree86/common/xf86Config.c
@@ -195,8 +195,7 @@ xf86ValidateFontPath(char *path)
 	dirlen = p1 - path_elem;
       else
 	dirlen = strlen(path_elem);
-      strncpy(dir_elem, path_elem, dirlen);
-      dir_elem[dirlen] = '\0';
+      strlcpy(dir_elem, path_elem, dirlen + 1);
       flag = stat(dir_elem, &stat_buf);
       if (flag == 0)
 	if (!S_ISDIR(stat_buf.st_mode))
@@ -249,9 +248,9 @@ xf86ModulelistFromConfig(pointer **optlist)
 {
     int count = 0, i = 0;
     char **modulearray;
-    char *ignore[] = { "GLcore", "speedo", "bitmap", "drm",
-		       "freetype", "type1",
-		       NULL };
+    const char *ignore[] = { "GLcore", "speedo", "bitmap", "drm",
+                             "freetype", "type1",
+                             NULL };
     pointer *optarray;
     XF86LoadPtr modp;
     Bool found;
@@ -523,7 +522,7 @@ fixup_video_driver_list(char **drivers)
 }
 
 static char **
-GenerateDriverlist(char * dirname)
+GenerateDriverlist(const char * dirname)
 {
     char **ret;
     const char *subdirs[] = { dirname, NULL };
@@ -554,7 +553,7 @@ xf86DriverlistFromCompile(void)
  *      available is printed.
  */
 static void
-xf86ConfigError(char *msg, ...)
+xf86ConfigError(const char *msg, ...)
 {
     va_list ap;
 
@@ -2301,8 +2300,8 @@ checkInput(serverLayoutPtr layout, Bool implicit_layout) {
 ConfigStatus
 xf86HandleConfigFile(Bool autoconfig)
 {
-    const char *filename, *dirname, *sysdirname;
-    char *filesearch, *dirsearch;
+    char *filename, *dirname, *sysdirname;
+    const char *filesearch, *dirsearch;
     MessageType filefrom = X_DEFAULT;
     MessageType dirfrom = X_DEFAULT;
     char *scanptr;
@@ -2353,6 +2352,10 @@ xf86HandleConfigFile(Bool autoconfig)
 	    return CONFIG_NOFILE;
     }
 
+    free(filename);
+    free(dirname);
+    free(sysdirname);
+
     if ((xf86configptr = xf86readConfigFile ()) == NULL) {
 	xf86Msg(X_ERROR, "Problem parsing the config file\n");
 	return CONFIG_PARSE_ERROR;
diff --git a/xorg-server/hw/xfree86/common/xf86Config.h b/xorg-server/hw/xfree86/common/xf86Config.h
index de287041a..411fc2cc1 100644
--- a/xorg-server/hw/xfree86/common/xf86Config.h
+++ b/xorg-server/hw/xfree86/common/xf86Config.h
@@ -51,7 +51,7 @@ typedef enum _ConfigStatus {
 } ConfigStatus;
 
 typedef struct _ModuleDefault {
-    char *name;
+    const char *name;
     Bool toLoad;
     XF86OptionPtr load_opt;
 } ModuleDefault;
diff --git a/xorg-server/hw/xfree86/common/xf86Configure.c b/xorg-server/hw/xfree86/common/xf86Configure.c
index 99b8b48d7..24f367ec0 100644
--- a/xorg-server/hw/xfree86/common/xf86Configure.c
+++ b/xorg-server/hw/xfree86/common/xf86Configure.c
@@ -58,17 +58,17 @@ Bool xf86DoConfigurePass1 = TRUE;
 static Bool foundMouse = FALSE;
 
 #if   defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
-static char *DFLT_MOUSE_DEV = "/dev/sysmouse";
-static char *DFLT_MOUSE_PROTO = "auto";
+static const char *DFLT_MOUSE_DEV = "/dev/sysmouse";
+static const char *DFLT_MOUSE_PROTO = "auto";
 #elif defined(linux)
-static char DFLT_MOUSE_DEV[] = "/dev/input/mice";
-static char DFLT_MOUSE_PROTO[] = "auto";
+static const char *DFLT_MOUSE_DEV = "/dev/input/mice";
+static const char *DFLT_MOUSE_PROTO = "auto";
 #elif defined(WSCONS_SUPPORT)
-static char *DFLT_MOUSE_DEV = "/dev/wsmouse";
-static char *DFLT_MOUSE_PROTO = "wsmouse";
+static const char *DFLT_MOUSE_DEV = "/dev/wsmouse";
+static const char *DFLT_MOUSE_PROTO = "wsmouse";
 #else
-static char *DFLT_MOUSE_DEV = "/dev/mouse";
-static char *DFLT_MOUSE_PROTO = "auto";
+static const char *DFLT_MOUSE_DEV = "/dev/mouse";
+static const char *DFLT_MOUSE_PROTO = "auto";
 #endif
 
 /*
@@ -516,9 +516,9 @@ void
 DoConfigure(void)
 {
     int i,j, screennum = -1;
-    char *home = NULL;
+    const char *home = NULL;
     char filename[PATH_MAX];
-    char *addslash = "";
+    const char *addslash = "";
     XF86ConfigPtr xf86config = NULL;
     char **vlist, **vl;
     int *dev2screen;
@@ -757,3 +757,54 @@ bail:
     fflush(stderr);
     exit(0);
 }
+
+/* Xorg -showopts:
+ *   For each driver module installed, print out the list
+ *   of options and their argument types, then exit
+ *
+ * Author:  Marcus Schaefer, ms@suse.de
+ */
+
+void DoShowOptions (void) {
+	int  i = 0;
+	char **vlist  = 0;
+	char *pSymbol = 0;
+	XF86ModuleData *initData = 0;
+	if (! (vlist = xf86DriverlistFromCompile())) {
+		ErrorF("Missing output drivers\n");
+		goto bail;
+	}
+	xf86LoadModules (vlist,0);
+	free(vlist);
+	for (i = 0; i < xf86NumDrivers; i++) {
+		if (xf86DriverList[i]->AvailableOptions) {
+			OptionInfoPtr pOption = (OptionInfoPtr)(*xf86DriverList[i]->AvailableOptions)(0,0);
+			if (! pOption) {
+				ErrorF ("(EE) Couldn't read option table for %s driver\n",
+					xf86DriverList[i]->driverName
+				);
+				continue;
+			}
+			XNFasprintf(&pSymbol, "%sModuleData",
+				    xf86DriverList[i]->driverName);
+			initData = LoaderSymbol (pSymbol);
+			if (initData) {
+				XF86ModuleVersionInfo *vers = initData->vers;
+				OptionInfoPtr p;
+				ErrorF ("Driver[%d]:%s[%s] {\n",
+					i,xf86DriverList[i]->driverName,vers->vendor
+				);
+				for (p = pOption; p->name != NULL; p++) {
+					ErrorF ("\t%s:%s\n", p->name,
+						optionTypeToString(p->type));
+				}
+				ErrorF ("}\n");
+			}
+		}
+	}
+	bail:
+	OsCleanup (TRUE);
+	AbortDDX (EXIT_ERR_DRIVERS);
+	fflush (stderr);
+	exit (0);
+}
diff --git a/xorg-server/hw/xfree86/common/xf86Globals.c b/xorg-server/hw/xfree86/common/xf86Globals.c
index f46799615..d576fb915 100644
--- a/xorg-server/hw/xfree86/common/xf86Globals.c
+++ b/xorg-server/hw/xfree86/common/xf86Globals.c
@@ -163,7 +163,7 @@ const char *xf86VisualNames[] = {
 };
 
 /* Parameters set only from the command line */
-char *xf86ServerName = "no-name";
+const char *xf86ServerName = "no-name";
 Bool xf86fpFlag = FALSE;
 Bool xf86sFlag = FALSE;
 Bool xf86bsEnableFlag = FALSE;
diff --git a/xorg-server/hw/xfree86/common/xf86Mode.c b/xorg-server/hw/xfree86/common/xf86Mode.c
index df0884794..d202d4079 100644
--- a/xorg-server/hw/xfree86/common/xf86Mode.c
+++ b/xorg-server/hw/xfree86/common/xf86Mode.c
@@ -1,2130 +1,2130 @@
-/*

- * 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).

- */

-

-/*

- * LCM() and scanLineWidth() are:

- *

- * Copyright 1997 through 2004 by Marc Aurele La France (TSI @ UQV), tsi@xfree86.org

- *

- * Permission to use, copy, modify, distribute, and sell this software and its

- * documentation for any purpose is hereby granted without fee, provided that

- * the above copyright notice appear in all copies and that both that copyright

- * notice and this permission notice appear in supporting documentation, and

- * that the name of Marc Aurele La France not be used in advertising or

- * publicity pertaining to distribution of the software without specific,

- * written prior permission.  Marc Aurele La France makes no representations

- * about the suitability of this software for any purpose.  It is provided

- * "as-is" without express or implied warranty.

- *

- * MARC AURELE LA FRANCE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.  IN NO

- * EVENT SHALL MARC AURELE LA FRANCE BE LIABLE FOR ANY SPECIAL, INDIRECT OR

- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,

- * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER

- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR

- * PERFORMANCE OF THIS SOFTWARE.

- *

- * Copyright 1990,91,92,93 by Thomas Roell, Germany.

- * Copyright 1991,92,93    by SGCS (Snitily Graphics Consulting Services), USA.

- *

- * Permission to use, copy, modify, distribute, and sell this software

- * and its documentation for any purpose is hereby granted without fee,

- * provided that the above copyright notice appear in all copies and

- * that both that copyright notice and this  permission notice appear

- * in supporting documentation, and that the name of Thomas Roell nor

- * SGCS be used in advertising or publicity pertaining to distribution

- * of the software without specific, written prior permission.

- * Thomas Roell nor SGCS makes no representations about the suitability

- * of this software for any purpose. It is provided "as is" without

- * express or implied warranty.

- *

- * THOMAS ROELL AND SGCS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS

- * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND

- * FITNESS, IN NO EVENT SHALL THOMAS ROELL OR SGCS BE LIABLE FOR ANY

- * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER

- * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF

- * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN

- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

- */

-

-/*

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

- *          David Dawes <dawes@XFree86.Org>

- *          Marc La France <tsi@XFree86.Org>

- *          ... and others

- *

- * This file includes helper functions for mode related things.

- */

-

-#ifdef HAVE_XORG_CONFIG_H

-#include <xorg-config.h>

-#endif

-

-#include <X11/X.h>

-#include "xf86Modes.h"

-#include "os.h"

-#include "servermd.h"

-#include "globals.h"

-#include "xf86.h"

-#include "xf86Priv.h"

-#include "edid.h"

-

-static void

-printModeRejectMessage(int index, DisplayModePtr p, int status)

-{

-    char *type;

-

-    if (p->type & M_T_BUILTIN)

-	type = "built-in ";

-    else if (p->type & M_T_DEFAULT)

-	type = "default ";

-    else if (p->type & M_T_DRIVER)

-	type = "driver ";

-    else

-	type = "";

-

-    xf86DrvMsg(index, X_INFO, "Not using %smode \"%s\" (%s)\n", type, p->name,

-	       xf86ModeStatusToString(status));

-}

-

-/*

- * xf86GetNearestClock --

- *	Find closest clock to given frequency (in kHz).  This assumes the

- *	number of clocks is greater than zero.

- */

-int

-xf86GetNearestClock(ScrnInfoPtr scrp, int freq, Bool allowDiv2,

-    int DivFactor, int MulFactor, int *divider)

-{

-    int nearestClock = 0, nearestDiv = 1;

-    int minimumGap = abs(freq - scrp->clock[0]);

-    int i, j, k, gap;

-

-    if (allowDiv2)

-	k = 2;

-    else

-	k = 1;

-

-    /* Must set this here in case the best match is scrp->clock[0] */

-    if (divider != NULL)

-	*divider = 0;

-    

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

-	for (j = 1; j <= k; j++) {

-	    gap = abs((freq * j) - ((scrp->clock[i] * DivFactor) / MulFactor));

-	    if ((gap < minimumGap) ||

-		((gap == minimumGap) && (j < nearestDiv))) {

-		minimumGap = gap;

-		nearestClock = i;

-		nearestDiv = j;

-		if (divider != NULL)

-		    *divider = (j - 1) * V_CLKDIV2;

-	    }

-	}

-    }

-    return nearestClock;

-}

-

-/*

- * xf86ModeStatusToString

- *

- * Convert a ModeStatus value to a printable message

- */

-

-const char *

-xf86ModeStatusToString(ModeStatus status)

-{

-    switch (status) {

-    case MODE_OK:

-	return "Mode OK";

-    case MODE_HSYNC:

-	return "hsync out of range";

-    case MODE_VSYNC:

-	return "vrefresh out of range";

-    case MODE_H_ILLEGAL:

-	return "illegal horizontal timings";

-    case MODE_V_ILLEGAL:

-	return "illegal vertical timings";

-    case MODE_BAD_WIDTH:

-	return "width requires unsupported line pitch";

-    case MODE_NOMODE:

-	return "no mode of this name";

-    case MODE_NO_INTERLACE:

-	return "interlace mode not supported";

-    case MODE_NO_DBLESCAN:

-	return "doublescan mode not supported";

-    case MODE_NO_VSCAN:

-	return "multiscan mode not supported";

-    case MODE_MEM:

-	return "insufficient memory for mode";

-    case MODE_VIRTUAL_X:

-	return "width too large for virtual size";

-    case MODE_VIRTUAL_Y:

-	return "height too large for virtual size";

-    case MODE_MEM_VIRT:

-	return "insufficient memory given virtual size";

-    case MODE_NOCLOCK:

-	return "no clock available for mode";

-    case MODE_CLOCK_HIGH:

-	return "mode clock too high";

-    case MODE_CLOCK_LOW:

-	return "mode clock too low";

-    case MODE_CLOCK_RANGE:

-	return "bad mode clock/interlace/doublescan";

-    case MODE_BAD_HVALUE:

-	return "horizontal timing out of range";

-    case MODE_BAD_VVALUE:

-	return "vertical timing out of range";

-    case MODE_BAD_VSCAN:

-	return "VScan value out of range";

-    case MODE_HSYNC_NARROW:

-	return "horizontal sync too narrow";

-    case MODE_HSYNC_WIDE:

-	return "horizontal sync too wide";

-    case MODE_HBLANK_NARROW:

-	return "horizontal blanking too narrow";

-    case MODE_HBLANK_WIDE:

-	return "horizontal blanking too wide";

-    case MODE_VSYNC_NARROW:

-	return "vertical sync too narrow";

-    case MODE_VSYNC_WIDE:

-	return "vertical sync too wide";

-    case MODE_VBLANK_NARROW:

-	return "vertical blanking too narrow";

-    case MODE_VBLANK_WIDE:

-	return "vertical blanking too wide";

-    case MODE_PANEL:

-	return "exceeds panel dimensions";

-    case MODE_INTERLACE_WIDTH:

-	return "width too large for interlaced mode";

-    case MODE_ONE_WIDTH:

-        return "all modes must have the same width";

-    case MODE_ONE_HEIGHT:

-        return "all modes must have the same height";

-    case MODE_ONE_SIZE:

-        return "all modes must have the same resolution";

-    case MODE_NO_REDUCED:

-        return "monitor doesn't support reduced blanking";

-    case MODE_BANDWIDTH:

-	return "mode requires too much memory bandwidth";

-    case MODE_BAD:

-	return "unknown reason";

-    case MODE_ERROR:

-	return "internal error";

-    default:

-	return "unknown";

-    }

-}

-

-/*

- * xf86ShowClockRanges() -- Print the clock ranges allowed

- * and the clock values scaled by ClockMulFactor and ClockDivFactor

- */

-void

-xf86ShowClockRanges(ScrnInfoPtr scrp, ClockRangePtr clockRanges)

-{

-    ClockRangePtr cp;

-    int MulFactor = 1;

-    int DivFactor = 1;

-    int i, j;

-    int scaledClock;

-

-    for (cp = clockRanges; cp != NULL; cp = cp->next) {

-	DivFactor = max(1, cp->ClockDivFactor);

-	MulFactor = max(1, cp->ClockMulFactor);

-	if (scrp->progClock) {

-	    if (cp->minClock) {

-		if (cp->maxClock) {

-		    xf86DrvMsg(scrp->scrnIndex, X_INFO,

-			"Clock range: %6.2f to %6.2f MHz\n",

-			(double)cp->minClock / 1000.0,

-			(double)cp->maxClock / 1000.0);

-		} else {

-		    xf86DrvMsg(scrp->scrnIndex, X_INFO,

-			"Minimum clock: %6.2f MHz\n",

-			(double)cp->minClock / 1000.0);

-		}

-	    } else {

-		if (cp->maxClock) {

-		    xf86DrvMsg(scrp->scrnIndex, X_INFO,

-			"Maximum clock: %6.2f MHz\n",

-			(double)cp->maxClock / 1000.0);

-		}

-	    }

-	} else if (DivFactor > 1 || MulFactor > 1) {

-	    j = 0;

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

-		scaledClock = (scrp->clock[i] * DivFactor) / MulFactor;

-		if (scaledClock >= cp->minClock && scaledClock <= cp->maxClock) {

-		    if ((j % 8) == 0) {

-			if (j > 0)

-			    xf86ErrorF("\n");

-			xf86DrvMsg(scrp->scrnIndex, X_INFO, "scaled clocks:");

-		    }

-		    xf86ErrorF(" %6.2f", (double)scaledClock / 1000.0);

-		    j++;

-		}

-	    }

-	    xf86ErrorF("\n");

-	}

-    }

-}

-

-static Bool

-modeInClockRange(ClockRangePtr cp, DisplayModePtr p)

-{

-    return ((p->Clock >= cp->minClock) &&

-	    (p->Clock <= cp->maxClock) &&

-	    (cp->interlaceAllowed || !(p->Flags & V_INTERLACE)) &&

-	    (cp->doubleScanAllowed ||

-	     ((p->VScan <= 1) && !(p->Flags & V_DBLSCAN))));

-}

-

-/*

- * xf86FindClockRangeForMode()    [... like the name says ...]

- */

-static ClockRangePtr

-xf86FindClockRangeForMode(ClockRangePtr clockRanges, DisplayModePtr p)

-{

-    ClockRangePtr cp;

-

-    for (cp = clockRanges; ; cp = cp->next)

-	if (!cp || modeInClockRange(cp, p))

-	    return cp;

-}

-

-

-/*

- * xf86HandleBuiltinMode() - handles built-in modes

- */

-static ModeStatus

-xf86HandleBuiltinMode(ScrnInfoPtr scrp,

-		      DisplayModePtr p,

-		      DisplayModePtr modep,

-		      ClockRangePtr clockRanges,

-		      Bool allowDiv2)

-{

-    ClockRangePtr cp;

-    int extraFlags = 0;

-    int MulFactor = 1;

-    int DivFactor = 1;

-    int clockIndex;

-    

-    /* Reject previously rejected modes */

-    if (p->status != MODE_OK)

-	return p->status;

-

-    /* Reject previously considered modes */

-    if (p->prev)

-        return MODE_NOMODE;

-

-    if ((p->type & M_T_CLOCK_C) == M_T_CLOCK_C) {

-	/* Check clock is in range */

-	cp = xf86FindClockRangeForMode(clockRanges, p);

-	if (cp == NULL){

-	    modep->type = p->type;

-	    p->status = MODE_CLOCK_RANGE;

-	    return MODE_CLOCK_RANGE;

-	}

-	DivFactor = cp->ClockDivFactor;

-	MulFactor = cp->ClockMulFactor;

-	if (!scrp->progClock) {

-	    clockIndex = xf86GetNearestClock(scrp, p->Clock, allowDiv2,

-					     cp->ClockDivFactor,

-					     cp->ClockMulFactor, &extraFlags);

-	    modep->Clock = (scrp->clock[clockIndex] * DivFactor)

-		/ MulFactor;

-	    modep->ClockIndex	= clockIndex;

-	    modep->SynthClock	= scrp->clock[clockIndex];

-	    if (extraFlags & V_CLKDIV2) {

-		modep->Clock /= 2;

-		modep->SynthClock /= 2;

-	    }

-	} else {

-	    modep->Clock = p->Clock;

-	    modep->ClockIndex = -1;

-	    modep->SynthClock = (modep->Clock * MulFactor)

-		/ DivFactor;

-	}

-	modep->PrivFlags = cp->PrivFlags;

-    } else {

-	if(!scrp->progClock) {

-            modep->Clock = p->Clock;

-	    modep->ClockIndex = p->ClockIndex;

-	    modep->SynthClock = p->SynthClock;

-	} else {

-	    modep->Clock = p->Clock;

-	    modep->ClockIndex = -1;

-	    modep->SynthClock = p->SynthClock;

-	}

-	modep->PrivFlags = p->PrivFlags;

-    }

-    modep->type            = p->type;

-    modep->HDisplay        = p->HDisplay;

-    modep->HSyncStart      = p->HSyncStart;

-    modep->HSyncEnd        = p->HSyncEnd;

-    modep->HTotal          = p->HTotal;

-    modep->HSkew           = p->HSkew;

-    modep->VDisplay        = p->VDisplay;

-    modep->VSyncStart      = p->VSyncStart;

-    modep->VSyncEnd        = p->VSyncEnd;

-    modep->VTotal          = p->VTotal;

-    modep->VScan           = p->VScan;

-    modep->Flags           = p->Flags | extraFlags;

-    modep->CrtcHDisplay    = p->CrtcHDisplay;

-    modep->CrtcHBlankStart = p->CrtcHBlankStart;

-    modep->CrtcHSyncStart  = p->CrtcHSyncStart;

-    modep->CrtcHSyncEnd    = p->CrtcHSyncEnd;

-    modep->CrtcHBlankEnd   = p->CrtcHBlankEnd;

-    modep->CrtcHTotal      = p->CrtcHTotal;

-    modep->CrtcHSkew       = p->CrtcHSkew;

-    modep->CrtcVDisplay    = p->CrtcVDisplay;

-    modep->CrtcVBlankStart = p->CrtcVBlankStart;

-    modep->CrtcVSyncStart  = p->CrtcVSyncStart;

-    modep->CrtcVSyncEnd    = p->CrtcVSyncEnd;

-    modep->CrtcVBlankEnd   = p->CrtcVBlankEnd;

-    modep->CrtcVTotal      = p->CrtcVTotal;

-    modep->CrtcHAdjusted   = p->CrtcHAdjusted;

-    modep->CrtcVAdjusted   = p->CrtcVAdjusted;

-    modep->HSync           = p->HSync;

-    modep->VRefresh        = p->VRefresh;

-    modep->Private         = p->Private;

-    modep->PrivSize        = p->PrivSize;

-

-    p->prev = modep;

-    

-    return MODE_OK;

-}

-

-/*

- * xf86LookupMode

- *

- * This function returns a mode from the given list which matches the

- * given name.  When multiple modes with the same name are available,

- * the method of picking the matching mode is determined by the

- * strategy selected.

- *

- * This function takes the following parameters:

- *    scrp         ScrnInfoPtr

- *    modep        pointer to the returned mode, which must have the name

- *                 field filled in.

- *    clockRanges  a list of clock ranges.   This is optional when all the

- *                 modes are built-in modes.

- *    strategy     how to decide which mode to use from multiple modes with

- *                 the same name

- *

- * In addition, the following fields from the ScrnInfoRec are used:

- *    modePool     the list of monitor modes compatible with the driver

- *    clocks       a list of discrete clocks

- *    numClocks    number of discrete clocks

- *    progClock    clock is programmable

- *

- * If a mode was found, its values are filled in to the area pointed to

- * by modep,  If a mode was not found the return value indicates the

- * reason.

- */

-

-ModeStatus

-xf86LookupMode(ScrnInfoPtr scrp, DisplayModePtr modep,

-	       ClockRangePtr clockRanges, LookupModeFlags strategy)

-{

-    DisplayModePtr p, bestMode = NULL;

-    ClockRangePtr cp;

-    int i, k, gap, minimumGap = CLOCK_TOLERANCE + 1;

-    double refresh, bestRefresh = 0.0;

-    Bool found = FALSE;

-    int extraFlags = 0;

-    int clockIndex = -1;

-    int MulFactor = 1;

-    int DivFactor = 1;

-    int ModePrivFlags = 0;

-    ModeStatus status = MODE_NOMODE;

-    Bool allowDiv2 = (strategy & LOOKUP_CLKDIV2) != 0;

-    int n;

-    const int types[] = {

-	M_T_BUILTIN | M_T_PREFERRED,

-	M_T_BUILTIN,

-	M_T_USERDEF | M_T_PREFERRED,

-	M_T_USERDEF,

-	M_T_DRIVER | M_T_PREFERRED,

-	M_T_DRIVER,

-	0

-    };

-    const int ntypes = sizeof(types) / sizeof(int);

-

-    strategy &= ~(LOOKUP_CLKDIV2 | LOOKUP_OPTIONAL_TOLERANCES);

-

-    /* Some sanity checking */

-    if (scrp == NULL || scrp->modePool == NULL ||

-	(!scrp->progClock && scrp->numClocks == 0)) {

-	ErrorF("xf86LookupMode: called with invalid scrnInfoRec\n");

-	return MODE_ERROR;

-    }

-    if (modep == NULL || modep->name == NULL) {

-	ErrorF("xf86LookupMode: called with invalid modep\n");

-	return MODE_ERROR;

-    }

-    for (cp = clockRanges; cp != NULL; cp = cp->next) {

-	/* DivFactor and MulFactor must be > 0 */

-	cp->ClockDivFactor = max(1, cp->ClockDivFactor);

-	cp->ClockMulFactor = max(1, cp->ClockMulFactor);

-    }

-

-    /* Scan the mode pool for matching names */

-    for (n = 0; n < ntypes; n++) {

-	int type = types[n];

-	for (p = scrp->modePool; p != NULL; p = p->next) {

-

-	    /* scan through the modes in the sort order above */

-	    if ((p->type & type) != type)

-		continue;

-

-	    if (strcmp(p->name, modep->name) == 0) {

-

-		/* Skip over previously rejected modes */

-		if (p->status != MODE_OK) {

-		    if (!found)

-			status = p->status;

-		    continue;

-		}

-

-		/* Skip over previously considered modes */

-		if (p->prev)

-		    continue;

-

-		if (p->type & M_T_BUILTIN) {

-		    return xf86HandleBuiltinMode(scrp, p,modep, clockRanges,

-			    allowDiv2);

-		}

-

-		/* Check clock is in range */

-		cp = xf86FindClockRangeForMode(clockRanges, p);

-		if (cp == NULL) {

-		    /*

-		     * XXX Could do more here to provide a more detailed

-		     * reason for not finding a mode.

-		     */

-		    p->status = MODE_CLOCK_RANGE;

-		    if (!found)

-			status = MODE_CLOCK_RANGE;

-		    continue;

-		}

-

-		/*

-		 * If programmable clock and strategy is not

-		 * LOOKUP_BEST_REFRESH, the required mode has been found,

-		 * otherwise record the refresh and continue looking.

-		 */

-		if (scrp->progClock) {

-		    found = TRUE;

-		    if (strategy != LOOKUP_BEST_REFRESH) {

-			bestMode = p;

-			DivFactor = cp->ClockDivFactor;

-			MulFactor = cp->ClockMulFactor;

-			ModePrivFlags = cp->PrivFlags;

-			break;

-		    }

-		    refresh = xf86ModeVRefresh(p);

-		    if (p->Flags & V_INTERLACE)

-			refresh /= INTERLACE_REFRESH_WEIGHT;

-		    if (refresh > bestRefresh) {

-			bestMode = p;

-			DivFactor = cp->ClockDivFactor;

-			MulFactor = cp->ClockMulFactor;

-			ModePrivFlags = cp->PrivFlags;

-			bestRefresh = refresh;

-		    }

-		    continue;

-		}

-

-		/*

-		 * Clock is in range, so if it is not a programmable clock, find

-		 * a matching clock.

-		 */

-

-		i = xf86GetNearestClock(scrp, p->Clock, allowDiv2,

-			cp->ClockDivFactor, cp->ClockMulFactor, &k);

-		/*

-		 * If the clock is too far from the requested clock, this

-		 * mode is no good.

-		 */

-		if (k & V_CLKDIV2)

-		    gap = abs((p->Clock * 2) -

-			    ((scrp->clock[i] * cp->ClockDivFactor) /

-				cp->ClockMulFactor));

-		else

-		    gap = abs(p->Clock -

-			    ((scrp->clock[i] * cp->ClockDivFactor) /

-				cp->ClockMulFactor));

-		if (gap > minimumGap) {

-		    p->status = MODE_NOCLOCK;

-		    if (!found)

-			status = MODE_NOCLOCK;

-		    continue;

-		}

-		found = TRUE;

-

-		if (strategy == LOOKUP_BEST_REFRESH) {

-		    refresh = xf86ModeVRefresh(p);

-		    if (p->Flags & V_INTERLACE)

-			refresh /= INTERLACE_REFRESH_WEIGHT;

-		    if (refresh > bestRefresh) {

-			bestMode = p;

-			DivFactor = cp->ClockDivFactor;

-			MulFactor = cp->ClockMulFactor;

-			ModePrivFlags = cp->PrivFlags;

-			extraFlags = k;

-			clockIndex = i;

-			bestRefresh = refresh;

-		    }

-		    continue;

-		}

-		if (strategy == LOOKUP_CLOSEST_CLOCK) {

-		    if (gap < minimumGap) {

-			bestMode = p;

-			DivFactor = cp->ClockDivFactor;

-			MulFactor = cp->ClockMulFactor;

-			ModePrivFlags = cp->PrivFlags;

-			extraFlags = k;

-			clockIndex = i;

-			minimumGap = gap;

-		    }

-		    continue;

-		}

-		/*

-		 * If strategy is neither LOOKUP_BEST_REFRESH or

-		 * LOOKUP_CLOSEST_CLOCK the required mode has been found.

-		 */

-		bestMode = p;

-		DivFactor = cp->ClockDivFactor;

-		MulFactor = cp->ClockMulFactor;

-		ModePrivFlags = cp->PrivFlags;

-		extraFlags = k;

-		clockIndex = i;

-		break;

-	    }

-	}

-	if (found) break;

-    }

-    if (!found || bestMode == NULL)

-	return status;

-

-    /* Fill in the mode parameters */

-    if (scrp->progClock) {

-        modep->Clock		= bestMode->Clock;

-	modep->ClockIndex	= -1;

-	modep->SynthClock	= (modep->Clock * MulFactor) / DivFactor;

-    } else {

-	modep->Clock		= (scrp->clock[clockIndex] * DivFactor) /

-				    MulFactor;

-	modep->ClockIndex	= clockIndex;

-	modep->SynthClock	= scrp->clock[clockIndex];

-	if (extraFlags & V_CLKDIV2) {

-	    modep->Clock /= 2;

-	    modep->SynthClock /= 2;

-	}

-    }

-    modep->type                 = bestMode->type;

-    modep->PrivFlags		= ModePrivFlags;

-    modep->HDisplay		= bestMode->HDisplay;

-    modep->HSyncStart		= bestMode->HSyncStart;

-    modep->HSyncEnd		= bestMode->HSyncEnd;

-    modep->HTotal		= bestMode->HTotal;

-    modep->HSkew		= bestMode->HSkew;

-    modep->VDisplay		= bestMode->VDisplay;

-    modep->VSyncStart		= bestMode->VSyncStart;

-    modep->VSyncEnd		= bestMode->VSyncEnd;

-    modep->VTotal		= bestMode->VTotal;

-    modep->VScan		= bestMode->VScan;

-    modep->Flags		= bestMode->Flags | extraFlags;

-    modep->CrtcHDisplay		= bestMode->CrtcHDisplay;

-    modep->CrtcHBlankStart	= bestMode->CrtcHBlankStart;

-    modep->CrtcHSyncStart	= bestMode->CrtcHSyncStart;

-    modep->CrtcHSyncEnd		= bestMode->CrtcHSyncEnd;

-    modep->CrtcHBlankEnd	= bestMode->CrtcHBlankEnd;

-    modep->CrtcHTotal		= bestMode->CrtcHTotal;

-    modep->CrtcHSkew		= bestMode->CrtcHSkew;

-    modep->CrtcVDisplay		= bestMode->CrtcVDisplay;

-    modep->CrtcVBlankStart	= bestMode->CrtcVBlankStart;

-    modep->CrtcVSyncStart	= bestMode->CrtcVSyncStart;

-    modep->CrtcVSyncEnd		= bestMode->CrtcVSyncEnd;

-    modep->CrtcVBlankEnd	= bestMode->CrtcVBlankEnd;

-    modep->CrtcVTotal		= bestMode->CrtcVTotal;

-    modep->CrtcHAdjusted	= bestMode->CrtcHAdjusted;

-    modep->CrtcVAdjusted	= bestMode->CrtcVAdjusted;

-    modep->HSync		= bestMode->HSync;

-    modep->VRefresh		= bestMode->VRefresh;

-    modep->Private		= bestMode->Private;

-    modep->PrivSize		= bestMode->PrivSize;

-

-    bestMode->prev = modep;

-

-    return MODE_OK;

-}

-

-/*

- * xf86CheckModeForMonitor

- *

- * This function takes a mode and monitor description, and determines

- * if the mode is valid for the monitor.

- */

-ModeStatus

-xf86CheckModeForMonitor(DisplayModePtr mode, MonPtr monitor)

-{

-    int i;

-

-    /* Sanity checks */

-    if (mode == NULL || monitor == NULL) {

-	ErrorF("xf86CheckModeForMonitor: called with invalid parameters\n");

-	return MODE_ERROR;

-    }

-

-    DebugF("xf86CheckModeForMonitor(%p %s, %p %s)\n",

-	   mode, mode->name, monitor, monitor->id);

-

-    /* Some basic mode validity checks */

-    if (0 >= mode->HDisplay || mode->HDisplay > mode->HSyncStart ||

-	mode->HSyncStart >= mode->HSyncEnd || mode->HSyncEnd >= mode->HTotal)

-	return MODE_H_ILLEGAL;

-

-    if (0 >= mode->VDisplay || mode->VDisplay > mode->VSyncStart ||

-	mode->VSyncStart >= mode->VSyncEnd || mode->VSyncEnd >= mode->VTotal)

-	return MODE_V_ILLEGAL;

-

-    if (monitor->nHsync > 0) {

-	/* Check hsync against the allowed ranges */

-	float hsync = xf86ModeHSync(mode);

-	for (i = 0; i < monitor->nHsync; i++) 

-	    if ((hsync > monitor->hsync[i].lo * (1.0 - SYNC_TOLERANCE)) &&

-		(hsync < monitor->hsync[i].hi * (1.0 + SYNC_TOLERANCE)))

-		break;

-	

-	/* Now see whether we ran out of sync ranges without finding a match */

-	if (i == monitor->nHsync) 

-	    return MODE_HSYNC;

-    }

-

-    if (monitor->nVrefresh > 0) {

-	/* Check vrefresh against the allowed ranges */

-	float vrefrsh = xf86ModeVRefresh(mode);

-	for (i = 0; i < monitor->nVrefresh; i++)

-	    if ((vrefrsh > monitor->vrefresh[i].lo * (1.0 - SYNC_TOLERANCE)) &&

-		(vrefrsh < monitor->vrefresh[i].hi * (1.0 + SYNC_TOLERANCE)))

-		break;

-

-	/* Now see whether we ran out of refresh ranges without finding a match */

-	if (i == monitor->nVrefresh)

-	    return MODE_VSYNC;

-    }

-

-    /* Force interlaced modes to have an odd VTotal */

-    if (mode->Flags & V_INTERLACE)

-	mode->CrtcVTotal = mode->VTotal |= 1;

-

-    /*

-     * This code stops cvt -r modes, and only cvt -r modes, from hitting 15y+

-     * old CRTs which might, when there is a lot of solar flare activity and

-     * when the celestial bodies are unfavourably aligned, implode trying to

-     * sync to it. It's called "Protecting the user from doing anything stupid".

-     * -- libv

-     */

-

-    if (xf86ModeIsReduced(mode)) {

-        if (!monitor->reducedblanking && !(mode->type & M_T_DRIVER))

-            return MODE_NO_REDUCED;

-    }

-

-    if ((monitor->maxPixClock) && (mode->Clock > monitor->maxPixClock))

-	return MODE_CLOCK_HIGH;

-

-    return MODE_OK;

-}

-

-/*

- * xf86CheckModeSize

- *

- * An internal routine to check if a mode fits in video memory.  This tries to

- * avoid overflows that would otherwise occur when video memory size is greater

- * than 256MB.

- */

-static Bool

-xf86CheckModeSize(ScrnInfoPtr scrp, int w, int x, int y)

-{

-    int bpp = scrp->fbFormat.bitsPerPixel,

-	pad = scrp->fbFormat.scanlinePad;

-    int lineWidth, lastWidth;

-

-    if (scrp->depth == 4)

-	pad *= 4;		/* 4 planes */

-

-    /* Sanity check */

-    if ((w < 0) || (x < 0) || (y <= 0))

-	return FALSE;

-

-    lineWidth = (((w * bpp) + pad - 1) / pad) * pad;

-    lastWidth = x * bpp;

-

-    /*

-     * At this point, we need to compare

-     *

-     *	(lineWidth * (y - 1)) + lastWidth

-     *

-     * against

-     *

-     *	scrp->videoRam * (1024 * 8)

-     *

-     * These are bit quantities.  To avoid overflows, do the comparison in

-     * terms of BITMAP_SCANLINE_PAD units.  This assumes BITMAP_SCANLINE_PAD

-     * is a power of 2.  We currently use 32, which limits us to a video

-     * memory size of 8GB.

-     */

-

-    lineWidth = (lineWidth + (BITMAP_SCANLINE_PAD - 1)) / BITMAP_SCANLINE_PAD;

-    lastWidth = (lastWidth + (BITMAP_SCANLINE_PAD - 1)) / BITMAP_SCANLINE_PAD;

-

-    if ((lineWidth * (y - 1) + lastWidth) >

-	(scrp->videoRam * ((1024 * 8) / BITMAP_SCANLINE_PAD)))

-	return FALSE;

-

-    return TRUE;

-}

-

-/*

- * xf86InitialCheckModeForDriver

- *

- * This function checks if a mode satisfies a driver's initial requirements:

- *   -  mode size fits within the available pixel area (memory)

- *   -  width lies within the range of supported line pitches

- *   -  mode size fits within virtual size (if fixed)

- *   -  horizontal timings are in range

- *

- * This function takes the following parameters:

- *    scrp         ScrnInfoPtr

- *    mode         mode to check

- *    maxPitch     (optional) maximum line pitch

- *    virtualX     (optional) virtual width requested

- *    virtualY     (optional) virtual height requested

- *

- * In addition, the following fields from the ScrnInfoRec are used:

- *    monitor      pointer to structure for monitor section

- *    fbFormat     pixel format for the framebuffer

- *    videoRam     video memory size (in kB)

- *    maxHValue    maximum horizontal timing value

- *    maxVValue    maximum vertical timing value

- */

-

-ModeStatus

-xf86InitialCheckModeForDriver(ScrnInfoPtr scrp, DisplayModePtr mode,

-			      ClockRangePtr clockRanges,

-			      LookupModeFlags strategy,

-			      int maxPitch, int virtualX, int virtualY)

-{

-    ClockRangePtr cp;

-    ModeStatus status;

-    Bool allowDiv2 = (strategy & LOOKUP_CLKDIV2) != 0;

-    int i, needDiv2;

-    

-    /* Sanity checks */

-    if (!scrp || !mode || !clockRanges) {

-	ErrorF("xf86InitialCheckModeForDriver: "

-		"called with invalid parameters\n");

-	return MODE_ERROR;

-    }

-

-    DebugF("xf86InitialCheckModeForDriver(%p, %p %s, %p, 0x%x, %d, %d, %d)\n",

-	   scrp, mode, mode->name , clockRanges, strategy, maxPitch,  virtualX, virtualY);

-

-    /* Some basic mode validity checks */

-    if (0 >= mode->HDisplay || mode->HDisplay > mode->HSyncStart ||

-	mode->HSyncStart >= mode->HSyncEnd || mode->HSyncEnd >= mode->HTotal)

-	return MODE_H_ILLEGAL;

-

-    if (0 >= mode->VDisplay || mode->VDisplay > mode->VSyncStart ||

-	mode->VSyncStart >= mode->VSyncEnd || mode->VSyncEnd >= mode->VTotal)

-	return MODE_V_ILLEGAL;

-

-    if (!xf86CheckModeSize(scrp, mode->HDisplay, mode->HDisplay,

-				 mode->VDisplay))

-        return MODE_MEM;

-

-    if (maxPitch > 0 && mode->HDisplay > maxPitch)

-	return MODE_BAD_WIDTH;

-

-    if (virtualX > 0 && mode->HDisplay > virtualX)

-	return MODE_VIRTUAL_X;

-

-    if (virtualY > 0 && mode->VDisplay > virtualY)

-	return MODE_VIRTUAL_Y;

-

-    if (scrp->maxHValue > 0 && mode->HTotal > scrp->maxHValue)

-	return MODE_BAD_HVALUE;

-

-    if (scrp->maxVValue > 0 && mode->VTotal > scrp->maxVValue)

-	return MODE_BAD_VVALUE;

-

-    /*

-     * The use of the DisplayModeRec's Crtc* and SynthClock elements below is

-     * provisional, in that they are later reused by the driver at mode-set

-     * time.  Here, they are temporarily enlisted to contain the mode timings

-     * as seen by the CRT or panel (rather than the CRTC).  The driver's

-     * ValidMode() is allowed to modify these so it can deal with such things

-     * as mode stretching and/or centering.  The driver should >NOT< modify the

-     * user-supplied values as these are reported back when mode validation is

-     * said and done.

-     */

-    /*

-     * NOTE: We (ab)use the mode->Crtc* values here to store timing

-     * information for the calculation of Hsync and Vrefresh. Before

-     * these values are calculated the driver is given the opportunity

-     * to either set these HSync and VRefresh itself or modify the timing

-     * values.

-     * The difference to the final calculation is small but imortand:

-     * here we pass the flag INTERLACE_HALVE_V regardless if the driver

-     * sets it or not. This way our calculation of VRefresh has the same

-     * effect as if we do if (flags & V_INTERLACE) refresh *= 2.0

-     * This dual use of the mode->Crtc* values will certainly create

-     * confusion and is bad software design. However since it's part of

-     * the driver API it's hard to change.

-     */

-     

-    if (scrp->ValidMode) {

-	

-	xf86SetModeCrtc(mode, INTERLACE_HALVE_V);

-

-	cp = xf86FindClockRangeForMode(clockRanges, mode);

-	if (!cp)

-	    return MODE_CLOCK_RANGE;

-

-	if (cp->ClockMulFactor < 1)

-	    cp->ClockMulFactor = 1;

-	if (cp->ClockDivFactor < 1)

-	    cp->ClockDivFactor = 1;

-	

-	/*

-	 * XXX  The effect of clock dividers and multipliers on the monitor's

-	 *      pixel clock needs to be verified.

-	 */

-	if (scrp->progClock) {

-	    mode->SynthClock = mode->Clock;

-	} else {

-	    i = xf86GetNearestClock(scrp, mode->Clock, allowDiv2,

-				    cp->ClockDivFactor, cp->ClockMulFactor,

-				    &needDiv2);

-	    mode->SynthClock = (scrp->clock[i] * cp->ClockDivFactor) /

-		cp->ClockMulFactor;

-	    if (needDiv2 & V_CLKDIV2)

-		mode->SynthClock /= 2;

-	}

-

-	status = (*scrp->ValidMode)(scrp->scrnIndex, mode, FALSE,

-				    MODECHECK_INITIAL);

-	if (status != MODE_OK)

-	    return status;

-

-	if (mode->HSync <= 0.0)

-	    mode->HSync = (float)mode->SynthClock / (float)mode->CrtcHTotal;

-	if (mode->VRefresh <= 0.0)

-	    mode->VRefresh = (mode->SynthClock * 1000.0)

-		/ (mode->CrtcHTotal * mode->CrtcVTotal);

-    }

-    

-    mode->HSync = xf86ModeHSync(mode);

-    mode->VRefresh = xf86ModeVRefresh(mode);

-

-    /* Assume it is OK */

-    return MODE_OK;

-}

-

-/*

- * xf86CheckModeForDriver

- *

- * This function is for checking modes while the server is running (for

- * use mainly by the VidMode extension).

- *

- * This function checks if a mode satisfies a driver's requirements:

- *   -  width lies within the line pitch

- *   -  mode size fits within virtual size

- *   -  horizontal/vertical timings are in range

- *

- * This function takes the following parameters:

- *    scrp         ScrnInfoPtr

- *    mode         mode to check

- *    flags        not (currently) used

- *

- * In addition, the following fields from the ScrnInfoRec are used:

- *    maxHValue    maximum horizontal timing value

- *    maxVValue    maximum vertical timing value

- *    virtualX     virtual width

- *    virtualY     virtual height

- *    clockRanges  allowable clock ranges

- */

-

-ModeStatus

-xf86CheckModeForDriver(ScrnInfoPtr scrp, DisplayModePtr mode, int flags)

-{

-    ClockRangePtr cp;

-    int i, k, gap, minimumGap = CLOCK_TOLERANCE + 1;

-    int extraFlags = 0;

-    int clockIndex = -1;

-    int MulFactor = 1;

-    int DivFactor = 1;

-    int ModePrivFlags = 0;

-    ModeStatus status = MODE_NOMODE;

-

-    /* Some sanity checking */

-    if (scrp == NULL ||	(!scrp->progClock && scrp->numClocks == 0)) {

-	ErrorF("xf86CheckModeForDriver: called with invalid scrnInfoRec\n");

-	return MODE_ERROR;

-    }

-    if (mode == NULL) {

-	ErrorF("xf86CheckModeForDriver: called with invalid modep\n");

-	return MODE_ERROR;

-    }

-

-    /* Check the mode size */

-    if (mode->HDisplay > scrp->virtualX)

-	return MODE_VIRTUAL_X;

-

-    if (mode->VDisplay > scrp->virtualY)

-	return MODE_VIRTUAL_Y;

-

-    if (scrp->maxHValue > 0 && mode->HTotal > scrp->maxHValue)

-	return MODE_BAD_HVALUE;

-

-    if (scrp->maxVValue > 0 && mode->VTotal > scrp->maxVValue)

-	return MODE_BAD_VVALUE;

-

-    for (cp = scrp->clockRanges; cp != NULL; cp = cp->next) {

-	/* DivFactor and MulFactor must be > 0 */

-	cp->ClockDivFactor = max(1, cp->ClockDivFactor);

-	cp->ClockMulFactor = max(1, cp->ClockMulFactor);

-    }

-

-    if (scrp->progClock) {

-	/* Check clock is in range */

-	for (cp = scrp->clockRanges; cp != NULL; cp = cp->next) {

-	    if (modeInClockRange(cp, mode))

-	        break;

-	}

-	if (cp == NULL) {

-	    return MODE_CLOCK_RANGE;

-	}

-	/*

-	 * If programmable clock the required mode has been found

-	 */

-    	DivFactor = cp->ClockDivFactor;

-	MulFactor = cp->ClockMulFactor;

-	ModePrivFlags = cp->PrivFlags;

-    } else {

-	 status = MODE_CLOCK_RANGE;

-	/* Check clock is in range */

-	for (cp = scrp->clockRanges; cp != NULL; cp = cp->next) {

-	    if (modeInClockRange(cp, mode)) {

-		/*

-	 	 * Clock is in range, so if it is not a programmable clock,

-		 * find a matching clock.

-		 */

-    

-		i = xf86GetNearestClock(scrp, mode->Clock, 0,

-			   cp->ClockDivFactor, cp->ClockMulFactor, &k);

-		/*

-		 * If the clock is too far from the requested clock, this

-		 * mode is no good.

-		 */

-		if (k & V_CLKDIV2)

-		    gap = abs((mode->Clock * 2) -

-			      ((scrp->clock[i] * cp->ClockDivFactor) /

-			       cp->ClockMulFactor));

-		else

-		    gap = abs(mode->Clock -

-			      ((scrp->clock[i] * cp->ClockDivFactor) /

-			       cp->ClockMulFactor));

-		if (gap > minimumGap) {

-		    status = MODE_NOCLOCK;

-		    continue;

-		}

-		

-		DivFactor = cp->ClockDivFactor;

-		MulFactor = cp->ClockMulFactor;

-		ModePrivFlags = cp->PrivFlags;

-		extraFlags = k;

-		clockIndex = i;

-		break;

-	    }

-	}

-	if (cp == NULL)

-	    return status;

-    }

-

-    /* Fill in the mode parameters */

-    if (scrp->progClock) {

-	mode->ClockIndex	= -1;

-	mode->SynthClock	= (mode->Clock * MulFactor) / DivFactor;

-    } else {

-	mode->Clock		= (scrp->clock[clockIndex] * DivFactor) / MulFactor;

-	mode->ClockIndex	= clockIndex;

-	mode->SynthClock	= scrp->clock[clockIndex];

-	if (extraFlags & V_CLKDIV2) {

-	    mode->Clock /= 2;

-	    mode->SynthClock /= 2;

-	}

-    }

-    mode->PrivFlags		= ModePrivFlags;

-

-    return MODE_OK;

-}

-

-static int 

-inferVirtualSize(ScrnInfoPtr scrp, DisplayModePtr modes, int *vx, int *vy)

-{

-    float aspect = 0.0;

-    MonPtr mon = scrp->monitor;

-    xf86MonPtr DDC;

-    int x = 0, y = 0;

-    DisplayModePtr mode;

-

-    if (!mon) return 0;

-    DDC = mon->DDC;

-

-    if (DDC && DDC->ver.revision >= 4) {

-	/* For 1.4, we might actually get native pixel format.  How novel. */

-	if (PREFERRED_TIMING_MODE(DDC->features.msc)) {

-		for (mode = modes; mode; mode = mode->next) {

-		    if (mode->type & (M_T_DRIVER | M_T_PREFERRED)) {

-			x = mode->HDisplay;

-			y = mode->VDisplay;

-			goto found;

-		    }

-		}

-	}

-	/*

-	 * Even if we don't, we might get aspect ratio from extra CVT info

-	 * or from the monitor size fields.  TODO.

-	 */

-    }

-

-    /*

-     * Technically this triggers if either is zero.  That wasn't legal

-     * before EDID 1.4, but right now we'll get that wrong. TODO.

-     */

-    if (!aspect) {

-	if (!mon->widthmm || !mon->heightmm)

-	    aspect = 4.0/3.0;

-	else

-	    aspect = (float)mon->widthmm / (float)mon->heightmm;

-    }

-

-    /* find the largest M_T_DRIVER mode with that aspect ratio */

-    for (mode = modes; mode; mode = mode->next) {

-	float mode_aspect, metaspect;

-	if (!(mode->type & (M_T_DRIVER|M_T_USERDEF)))

-	    continue;

-	mode_aspect = (float)mode->HDisplay / (float)mode->VDisplay;

-	metaspect = aspect / mode_aspect;

-	/* 5% slop or so, since we only get size in centimeters */

-	if (fabs(1.0 - metaspect) < 0.05) {

-	    if ((mode->HDisplay > x) && (mode->VDisplay > y)) {

-		x = mode->HDisplay;

-		y = mode->VDisplay;

-	    }

-	}

-    }

-

-    if (!x || !y) {

-	xf86DrvMsg(scrp->scrnIndex, X_WARNING,

-		   "Unable to estimate virtual size\n");

-	return 0;

-    }

-

-found:

-    *vx = x;

-    *vy = y;

-

-    xf86DrvMsg(scrp->scrnIndex, X_INFO,

-	       "Estimated virtual size for aspect ratio %.4f is %dx%d\n",

-	       aspect, *vx, *vy);

-

-    return 1;

-}

-

-/* Least common multiple */

-static unsigned int

-LCM(unsigned int x, unsigned int y)

-{

-    unsigned int m = x, n = y, o;

-

-    while ((o = m % n))

-    {

-        m = n;

-        n = o;

-    }

-

-    return (x / n) * y;

-}

-

-/*

- * Given various screen attributes, determine the minimum scanline width such

- * that each scanline is server and DDX padded and any pixels with imbedded

- * bank boundaries are off-screen.  This function returns -1 if such a width

- * cannot exist.

- */

-static int

-scanLineWidth(

-    unsigned int     xsize,         /* pixels */

-    unsigned int     ysize,         /* pixels */

-    unsigned int     width,         /* pixels */

-    unsigned long    BankSize,      /* char's */

-    PixmapFormatRec *pBankFormat,

-    unsigned int     nWidthUnit     /* bits */

-)

-{

-    unsigned long nBitsPerBank, nBitsPerScanline, nBitsPerScanlinePadUnit;

-    unsigned long minBitsPerScanline, maxBitsPerScanline;

-

-    /* Sanity checks */

-

-    if (!nWidthUnit || !pBankFormat)

-        return -1;

-

-    nBitsPerBank = BankSize * 8;

-    if (nBitsPerBank % pBankFormat->scanlinePad)

-        return -1;

-

-    if (xsize > width)

-        width = xsize;

-    nBitsPerScanlinePadUnit = LCM(pBankFormat->scanlinePad, nWidthUnit);

-    nBitsPerScanline =

-        (((width * pBankFormat->bitsPerPixel) + nBitsPerScanlinePadUnit - 1) /

-         nBitsPerScanlinePadUnit) * nBitsPerScanlinePadUnit;

-    width = nBitsPerScanline / pBankFormat->bitsPerPixel;

-

-    if (!xsize || !(nBitsPerBank % pBankFormat->bitsPerPixel))

-        return (int)width;

-

-    /*

-     * Scanlines will be server-pad aligned at this point.  They will also be

-     * a multiple of nWidthUnit bits long.  Ensure that pixels with imbedded

-     * bank boundaries are off-screen.

-     *

-     * It seems reasonable to limit total frame buffer size to 1/16 of the

-     * theoretical maximum address space size.  On a machine with 32-bit

-     * addresses (to 8-bit quantities) this turns out to be 256MB.  Not only

-     * does this provide a simple limiting condition for the loops below, but

-     * it also prevents unsigned long wraparounds.

-     */

-    if (!ysize)

-        return -1;

-

-    minBitsPerScanline = xsize * pBankFormat->bitsPerPixel;

-    if (minBitsPerScanline > nBitsPerBank)

-        return -1;

-

-    if (ysize == 1)

-        return (int)width;

-

-    maxBitsPerScanline =

-        (((unsigned long)(-1) >> 1) - minBitsPerScanline) / (ysize - 1);

-    while (nBitsPerScanline <= maxBitsPerScanline)

-    {

-        unsigned long BankBase, BankUnit;

-

-        BankUnit = ((nBitsPerBank + nBitsPerScanline - 1) / nBitsPerBank) *

-            nBitsPerBank;

-        if (!(BankUnit % nBitsPerScanline))

-            return (int)width;

-

-        for (BankBase = BankUnit;  ;  BankBase += nBitsPerBank)

-        {

-            unsigned long x, y;

-

-            y = BankBase / nBitsPerScanline;

-            if (y >= ysize)

-                return (int)width;

-

-            x = BankBase % nBitsPerScanline;

-            if (!(x % pBankFormat->bitsPerPixel))

-                continue;

-

-            if (x < minBitsPerScanline)

-            {

-                /*

-                 * Skip ahead certain widths by dividing the excess scanline

-                 * amongst the y's.

-                 */

-                y *= nBitsPerScanlinePadUnit;

-                nBitsPerScanline +=

-                    ((x + y - 1) / y) * nBitsPerScanlinePadUnit;

-                width = nBitsPerScanline / pBankFormat->bitsPerPixel;

-                break;

-            }

-

-            if (BankBase != BankUnit)

-                continue;

-

-            if (!(nBitsPerScanline % x))

-                return (int)width;

-

-            BankBase = ((nBitsPerScanline - minBitsPerScanline) /

-                (nBitsPerScanline - x)) * BankUnit;

-        }

-    }

-

-    return -1;

-}

-

-/*

- * xf86ValidateModes

- *

- * This function takes a set of mode names, modes and limiting conditions,

- * and selects a set of modes and parameters based on those conditions.

- *

- * This function takes the following parameters:

- *    scrp         ScrnInfoPtr

- *    availModes   the list of modes available for the monitor

- *    modeNames    (optional) list of mode names that the screen is requesting

- *    clockRanges  a list of clock ranges

- *    linePitches  (optional) a list of line pitches

- *    minPitch     (optional) minimum line pitch (in pixels)

- *    maxPitch     (optional) maximum line pitch (in pixels)

- *    pitchInc     (mandatory) pitch increment (in bits)

- *    minHeight    (optional) minimum virtual height (in pixels)

- *    maxHeight    (optional) maximum virtual height (in pixels)

- *    virtualX     (optional) virtual width requested (in pixels)

- *    virtualY     (optional) virtual height requested (in pixels)

- *    apertureSize size of video aperture (in bytes)

- *    strategy     how to decide which mode to use from multiple modes with

- *                 the same name

- *

- * In addition, the following fields from the ScrnInfoRec are used:

- *    clocks       a list of discrete clocks

- *    numClocks    number of discrete clocks

- *    progClock    clock is programmable

- *    monitor      pointer to structure for monitor section

- *    fbFormat     format of the framebuffer

- *    videoRam     video memory size

- *    maxHValue    maximum horizontal timing value

- *    maxVValue    maximum vertical timing value

- *    xInc         horizontal timing increment (defaults to 8 pixels)

- *

- * The function fills in the following ScrnInfoRec fields:

- *    modePool     A subset of the modes available to the monitor which

- *		   are compatible with the driver.

- *    modes        one mode entry for each of the requested modes, with the

- *                 status field filled in to indicate if the mode has been

- *                 accepted or not.

- *    virtualX     the resulting virtual width

- *    virtualY     the resulting virtual height

- *    displayWidth the resulting line pitch

- *

- * The function's return value is the number of matching modes found, or -1

- * if an unrecoverable error was encountered.

- */

-

-int

-xf86ValidateModes(ScrnInfoPtr scrp, DisplayModePtr availModes,

-		  char **modeNames, ClockRangePtr clockRanges,

-		  int *linePitches, int minPitch, int maxPitch, int pitchInc,

-		  int minHeight, int maxHeight, int virtualX, int virtualY,

-		  int apertureSize, LookupModeFlags strategy)

-{

-    DisplayModePtr p, q, r, new, last, *endp;

-    int i, numModes = 0;

-    ModeStatus status;

-    int linePitch = -1, virtX = 0, virtY = 0;

-    int newLinePitch, newVirtX, newVirtY;

-    int modeSize;					/* in pixels */

-    Bool validateAllDefaultModes = FALSE;

-    Bool userModes = FALSE;

-    int saveType;

-    PixmapFormatRec *BankFormat;

-    ClockRangePtr cp;

-    ClockRangePtr storeClockRanges;

-    int numTimings = 0;

-    range hsync[MAX_HSYNC];

-    range vrefresh[MAX_VREFRESH];

-    Bool inferred_virtual = FALSE;

-

-    DebugF("xf86ValidateModes(%p, %p, %p, %p,\n\t\t  %p, %d, %d, %d, %d, %d, %d, %d, %d, 0x%x)\n",

-	   scrp, availModes, modeNames, clockRanges,

-	   linePitches, minPitch, maxPitch, pitchInc,

-	   minHeight, maxHeight, virtualX, virtualY,

-	   apertureSize, strategy

-	   );

-

-    /* Some sanity checking */

-    if (scrp == NULL || scrp->name == NULL || !scrp->monitor ||

-	(!scrp->progClock && scrp->numClocks == 0)) {

-	ErrorF("xf86ValidateModes: called with invalid scrnInfoRec\n");

-	return -1;

-    }

-    if (linePitches != NULL && linePitches[0] <= 0) {

-	ErrorF("xf86ValidateModes: called with invalid linePitches\n");

-	return -1;

-    }

-    if (pitchInc <= 0) {

-	ErrorF("xf86ValidateModes: called with invalid pitchInc\n");

-	return -1;

-    }

-    if ((virtualX > 0) != (virtualY > 0)) {

-	ErrorF("xf86ValidateModes: called with invalid virtual resolution\n");

-	return -1;

-    }

-

-    /*

-     * If requested by the driver, allow missing hsync and/or vrefresh ranges

-     * in the monitor section.

-     */

-    if (strategy & LOOKUP_OPTIONAL_TOLERANCES) {

-	strategy &= ~LOOKUP_OPTIONAL_TOLERANCES;

-    } else {

-	const char *type = "";

-        Bool specified = FALSE;

-

-	if (scrp->monitor->nHsync <= 0) {

-	    if (numTimings > 0) {

-		scrp->monitor->nHsync = numTimings;

-		for (i = 0; i < numTimings; i++) {

-		    scrp->monitor->hsync[i].lo = hsync[i].lo;

-		    scrp->monitor->hsync[i].hi = hsync[i].hi;

-		}

-	    } else {

-		scrp->monitor->hsync[0].lo = 31.5;

-		scrp->monitor->hsync[0].hi = 48.0;

-		scrp->monitor->nHsync = 1;

-	    }

-	    type = "default ";

-	} else {

-            specified = TRUE;

-        }

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

-	    if (scrp->monitor->hsync[i].lo == scrp->monitor->hsync[i].hi)

-	      xf86DrvMsg(scrp->scrnIndex, X_INFO,

-			 "%s: Using %shsync value of %.2f kHz\n",

-			 scrp->monitor->id, type,

-			 scrp->monitor->hsync[i].lo);

-	    else

-	      xf86DrvMsg(scrp->scrnIndex, X_INFO,

-			 "%s: Using %shsync range of %.2f-%.2f kHz\n",

-			 scrp->monitor->id, type,

-			 scrp->monitor->hsync[i].lo,

-			 scrp->monitor->hsync[i].hi);

-	}

-

-	type = "";

-	if (scrp->monitor->nVrefresh <= 0) {

-	    if (numTimings > 0) {

-		scrp->monitor->nVrefresh = numTimings;

-		for (i = 0; i < numTimings; i++) {

-		    scrp->monitor->vrefresh[i].lo = vrefresh[i].lo;

-		    scrp->monitor->vrefresh[i].hi = vrefresh[i].hi;

-		}

-	    } else {

-		scrp->monitor->vrefresh[0].lo = 50;

-		scrp->monitor->vrefresh[0].hi = 70;

-		scrp->monitor->nVrefresh = 1;

-	    }

-	    type = "default ";

-	} else {

-            specified = TRUE;

-        }

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

-	    if (scrp->monitor->vrefresh[i].lo == scrp->monitor->vrefresh[i].hi)

-	      xf86DrvMsg(scrp->scrnIndex, X_INFO,

-			 "%s: Using %svrefresh value of %.2f Hz\n",

-			 scrp->monitor->id, type,

-			 scrp->monitor->vrefresh[i].lo);

-	    else

-	      xf86DrvMsg(scrp->scrnIndex, X_INFO,

-			 "%s: Using %svrefresh range of %.2f-%.2f Hz\n",

-			 scrp->monitor->id, type,

-			 scrp->monitor->vrefresh[i].lo,

-			 scrp->monitor->vrefresh[i].hi);

-	}

-

-        type = "";

-	if (!scrp->monitor->maxPixClock && !specified) {

-            type = "default ";

-            scrp->monitor->maxPixClock = 65000.0;

-        }

-	if (scrp->monitor->maxPixClock) {

-	    xf86DrvMsg(scrp->scrnIndex, X_INFO,

-		       "%s: Using %smaximum pixel clock of %.2f MHz\n",

-		       scrp->monitor->id, type,

-		       (float)scrp->monitor->maxPixClock / 1000.0);

-	}

-    }

-

-    /*

-     * Store the clockRanges for later use by the VidMode extension.

-     */

-    storeClockRanges = scrp->clockRanges;

-    while (storeClockRanges != NULL) {

-	storeClockRanges = storeClockRanges->next;

-    }

-    for (cp = clockRanges; cp != NULL; cp = cp->next,

-	   	storeClockRanges = storeClockRanges->next) {

-	storeClockRanges = xnfalloc(sizeof(ClockRange));

-	if (scrp->clockRanges == NULL)

-	    scrp->clockRanges = storeClockRanges;

-	memcpy(storeClockRanges, cp, sizeof(ClockRange));

-    }

-

-    /* Determine which pixmap format to pass to scanLineWidth() */

-    if (scrp->depth > 4)

-	BankFormat = &scrp->fbFormat;

-    else

-	BankFormat = xf86GetPixFormat(scrp, 1);	/* >not< scrp->depth! */

-

-    if (scrp->xInc <= 0)

-        scrp->xInc = 8;		/* Suitable for VGA and others */

-

-#define _VIRTUALX(x) ((((x) + scrp->xInc - 1) / scrp->xInc) * scrp->xInc)

-

-    /*

-     * Determine maxPitch if it wasn't given explicitly.  Note linePitches

-     * always takes precedence if is non-NULL.  In that case the minPitch and

-     * maxPitch values passed are ignored.

-     */

-    if (linePitches) {

-	minPitch = maxPitch = linePitches[0];

-	for (i = 1; linePitches[i] > 0; i++) {

-	    if (linePitches[i] > maxPitch)

-		maxPitch = linePitches[i];

-	    if (linePitches[i] < minPitch)

-		minPitch = linePitches[i];

-	}

-    }

-

-    /* Initial check of virtual size against other constraints */

-    scrp->virtualFrom = X_PROBED;

-    /*

-     * Initialise virtX and virtY if the values are fixed.

-     */

-    if (virtualY > 0) {

-	if (maxHeight > 0 && virtualY > maxHeight) {

-	    xf86DrvMsg(scrp->scrnIndex, X_ERROR,

-		       "Virtual height (%d) is too large for the hardware "

-		       "(max %d)\n", virtualY, maxHeight);

-	    return -1;

-	}

-

-	if (minHeight > 0 && virtualY < minHeight) {

-	    xf86DrvMsg(scrp->scrnIndex, X_ERROR,

-		       "Virtual height (%d) is too small for the hardware "

-		       "(min %d)\n", virtualY, minHeight);

-	    return -1;

-	}

-

-	virtualX = _VIRTUALX(virtualX);

-	if (linePitches != NULL) {

-	    for (i = 0; linePitches[i] != 0; i++) {

-		if ((linePitches[i] >= virtualX) &&

-		    (linePitches[i] ==

-		     scanLineWidth(virtualX, virtualY, linePitches[i],

-				   apertureSize, BankFormat, pitchInc))) {

-		    linePitch = linePitches[i];

-		    break;

-		}

-	    }

-	} else {

-	    linePitch = scanLineWidth(virtualX, virtualY, minPitch,

-				      apertureSize, BankFormat, pitchInc);

-	}

-

-	if ((linePitch < minPitch) || (linePitch > maxPitch)) {

-	    xf86DrvMsg(scrp->scrnIndex, X_ERROR,

-		       "Virtual width (%d) is too large for the hardware "

-		       "(max %d)\n", virtualX, maxPitch);

-	    return -1;

-	}

-

-	if (!xf86CheckModeSize(scrp, linePitch, virtualX, virtualY)) {

-	    xf86DrvMsg(scrp->scrnIndex, X_ERROR,

-		      "Virtual size (%dx%d) (pitch %d) exceeds video memory\n",

-		      virtualX, virtualY, linePitch);

-	    return -1;

-	}

-

-	virtX = virtualX;

-	virtY = virtualY;

-	scrp->virtualFrom = X_CONFIG;

-    } else if (!modeNames || !*modeNames) {

-	/* No virtual size given in the config, try to infer */

-	/* XXX this doesn't take m{in,ax}Pitch into account; oh well */

-	inferred_virtual = inferVirtualSize(scrp, availModes, &virtX, &virtY);

-	if (inferred_virtual)

-	    linePitch = scanLineWidth(virtX, virtY, minPitch, apertureSize,

-				      BankFormat, pitchInc);

-    }

-

-    /* Print clock ranges and scaled clocks */

-    xf86ShowClockRanges(scrp, clockRanges);

-

-    /*

-     * If scrp->modePool hasn't been setup yet, set it up now.  This allows the

-     * modes that the driver definitely can't use to be weeded out early.  Note

-     * that a modePool mode's prev field is used to hold a pointer to the

-     * member of the scrp->modes list for which a match was considered.

-     */

-    if (scrp->modePool == NULL) {

-	q = NULL;

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

-	    status = xf86InitialCheckModeForDriver(scrp, p, clockRanges,

-						   strategy, maxPitch,

-						   virtX, virtY);

-

-	    if (status == MODE_OK) {

-		status = xf86CheckModeForMonitor(p, scrp->monitor);

-	    }

-	    

-	    if (status == MODE_OK) {

-		new = xnfalloc(sizeof(DisplayModeRec));

-		*new = *p;

-		new->next = NULL;

-		if (!q) {

-		    scrp->modePool = new;

-		} else {

-		    q->next = new;

-		}

-		new->prev = NULL;

-		q = new;

-		q->name = xnfstrdup(p->name);

-	        q->status = MODE_OK;

-	    } else {

-		printModeRejectMessage(scrp->scrnIndex, p, status);

-	    }

-	}

-

-	if (scrp->modePool == NULL) {

-	    xf86DrvMsg(scrp->scrnIndex, X_WARNING, "Mode pool is empty\n");

-	    return 0;

-	}

-    } else {

-	for (p = scrp->modePool; p != NULL; p = p->next) {

-	    p->prev = NULL;

-	    p->status = MODE_OK;

-	}

-    }

-

-    /*

-     * Allocate one entry in scrp->modes for each named mode.

-     */

-    while (scrp->modes)

-	xf86DeleteMode(&scrp->modes, scrp->modes);

-    endp = &scrp->modes;

-    last = NULL;

-    if (modeNames != NULL) {

-	for (i = 0; modeNames[i] != NULL; i++) {

-	    userModes = TRUE;

-	    new = xnfcalloc(1, sizeof(DisplayModeRec));

-	    new->prev = last;

-	    new->type = M_T_USERDEF;

-	    new->name = xnfstrdup(modeNames[i]);

-	    if (new->prev)

-		new->prev->next = new;

-	    *endp = last = new;

-	    endp = &new->next;

-	}

-    }

-

-    /* Lookup each mode */

-#ifdef RANDR

-    if (!xf86Info.disableRandR	

-#ifdef PANORAMIX

-	&& noPanoramiXExtension

-#endif

-	)

-	validateAllDefaultModes = TRUE;

-#endif

-

-    for (p = scrp->modes; ; p = p->next) {

-	Bool repeat;

-

-	/*

-	 * If the supplied mode names don't produce a valid mode, scan through

-	 * unconsidered modePool members until one survives validation.  This

-	 * is done in decreasing order by mode pixel area.

-	 */

-

-	if (p == NULL) {

-	    if ((numModes > 0) && !validateAllDefaultModes)

-		break;

-

-	    validateAllDefaultModes = TRUE;

-	    r = NULL;

-	    modeSize = 0;

-	    for (q = scrp->modePool;  q != NULL;  q = q->next) {

-		if ((q->prev == NULL) && (q->status == MODE_OK)) {

-		    /*

-		     * Deal with the case where this mode wasn't considered

-		     * because of a builtin mode of the same name.

-		     */

-		    for (p = scrp->modes; p != NULL; p = p->next) {

-			if ((p->status != MODE_OK) &&

-			    !strcmp(p->name, q->name))

-			    break;

-		    }

-

-		    if (p != NULL)

-			q->prev = p;

-		    else {

-			/*

-			 * A quick check to not allow default modes with

-			 * horizontal timing parameters that CRTs may have

-			 * problems with.

-			 */

-			if (!scrp->monitor->reducedblanking &&

-			    (q->type & M_T_DEFAULT) &&

-			    ((double)q->HTotal / (double)q->HDisplay) < 1.15)

-			    continue;

-

-			if (modeSize < (q->HDisplay * q->VDisplay)) {

-			    r = q;

-			    modeSize = q->HDisplay * q->VDisplay;

-			}

-		    }

-		}

-	    }

-

-	    if (r == NULL)

-		break;

-

-	    p = xnfcalloc(1, sizeof(DisplayModeRec));

-	    p->prev = last;

-	    p->name = xnfstrdup(r->name);

-	    if (!userModes)

-		p->type = M_T_USERDEF;

-	    if (p->prev)

-		p->prev->next = p;

-	    *endp = last = p;

-	    endp = &p->next;

-	}

-

-	repeat = FALSE;

-    lookupNext:

-	if (repeat && ((status = p->status) != MODE_OK))

-	    printModeRejectMessage(scrp->scrnIndex, p, status);

-	saveType = p->type;

-	status = xf86LookupMode(scrp, p, clockRanges, strategy);

-	if (repeat && status == MODE_NOMODE)

-	    continue;

-	if (status != MODE_OK)

-	    printModeRejectMessage(scrp->scrnIndex, p, status);

-	if (status == MODE_ERROR) {

-	    ErrorF("xf86ValidateModes: "

-		   "unexpected result from xf86LookupMode()\n");

-	    return -1;

-	}

-	if (status != MODE_OK) {

-	    if (p->status == MODE_OK)

-		p->status = status;

-	    continue;

-	}

-	p->type |= saveType;

-	repeat = TRUE;

-

-	newLinePitch = linePitch;

-	newVirtX = virtX;

-	newVirtY = virtY;

-

-	/*

-	 * Don't let non-user defined modes increase the virtual size

-	 */

-	if (!(p->type & M_T_USERDEF) && (numModes > 0)) {

-	    if (p->HDisplay > virtX) {

-		p->status = MODE_VIRTUAL_X;

-		goto lookupNext;

-	    }

-	    if (p->VDisplay > virtY) {

-		p->status = MODE_VIRTUAL_Y;

-		goto lookupNext;

-	    }

-	}

-	/*

-	 * Adjust virtual width and height if the mode is too large for the

-	 * current values and if they are not fixed.

-	 */

-	if (virtualX <= 0 && p->HDisplay > newVirtX)

-	    newVirtX = _VIRTUALX(p->HDisplay);

-	if (virtualY <= 0 && p->VDisplay > newVirtY) {

-	    if (maxHeight > 0 && p->VDisplay > maxHeight) {

-		p->status = MODE_VIRTUAL_Y;	/* ? */

-		goto lookupNext;

-	    }

-	    newVirtY = p->VDisplay;

-	}

-

-	/*

-	 * If virtual resolution is to be increased, revalidate it.

-	 */

-	if ((virtX != newVirtX) || (virtY != newVirtY)) {

-	    if (linePitches != NULL) {

-		newLinePitch = -1;

-		for (i = 0; linePitches[i] != 0; i++) {

-		    if ((linePitches[i] >= newVirtX) &&

-			(linePitches[i] >= linePitch) &&

-			(linePitches[i] ==

-			 scanLineWidth(newVirtX, newVirtY, linePitches[i],

-				       apertureSize, BankFormat, pitchInc))) {

-			newLinePitch = linePitches[i];

-			break;

-		    }

-		}

-	    } else {

-		if (linePitch < minPitch)

-		    linePitch = minPitch;

-		newLinePitch = scanLineWidth(newVirtX, newVirtY, linePitch,

-					     apertureSize, BankFormat,

-					     pitchInc);

-	    }

-	    if ((newLinePitch < minPitch) || (newLinePitch > maxPitch)) {

-		p->status = MODE_BAD_WIDTH;

-		goto lookupNext;

-	    }

-

-	    /*

-	     * Check that the pixel area required by the new virtual height

-	     * and line pitch isn't too large.

-	     */

-	    if (!xf86CheckModeSize(scrp, newLinePitch, newVirtX, newVirtY)) {

-		p->status = MODE_MEM_VIRT;

-		goto lookupNext;

-	    }

-	}

-

-	if (scrp->ValidMode) {

-	    /*

-	     * Give the driver a final say, passing it the proposed virtual

-	     * geometry.

-	     */

-	    scrp->virtualX = newVirtX;

-	    scrp->virtualY = newVirtY;

-	    scrp->displayWidth = newLinePitch;

-	    p->status = (scrp->ValidMode)(scrp->scrnIndex, p, FALSE,

-					  MODECHECK_FINAL);

-

-	    if (p->status != MODE_OK) {

-	        goto lookupNext;

-	    }

-	}

-

-	/* Mode has passed all the tests */

-	virtX = newVirtX;

-	virtY = newVirtY;

-	linePitch = newLinePitch;

-	p->status = MODE_OK;

-	numModes++;

-    }

-

-    /*

-     * If we estimated the virtual size above, we may have filtered away all

-     * the modes that maximally match that size; scan again to find out and

-     * fix up if so.

-     */

-    if (inferred_virtual) {

-	int vx = 0, vy = 0;

-	for (p = scrp->modes; p; p = p->next) {

-	    if (p->HDisplay > vx && p->VDisplay > vy) {

-		vx = p->HDisplay;

-		vy = p->VDisplay;

-	    }

-	}

-	if (vx < virtX || vy < virtY) {

-	    const int types[] = {

-		M_T_BUILTIN | M_T_PREFERRED,

-		M_T_BUILTIN,

-		M_T_DRIVER | M_T_PREFERRED,

-		M_T_DRIVER,

-		0

-	    };

-	    const int ntypes = sizeof(types) / sizeof(int);

-	    int n;

-

-	    /* 

-	     * We did not find the estimated virtual size. So now we want to 

-	     * find the largest mode available, but we want to search in the

-	     * modes in the order of "types" listed above.

-	     */

-	    for (n = 0; n < ntypes; n++) {

-		int type = types[n];

-

-		vx = 0; vy = 0;

-		for (p = scrp->modes; p; p = p->next) {

-		    /* scan through the modes in the sort order above */

-		    if ((p->type & type) != type)

-			continue;

-		    if (p->HDisplay > vx && p->VDisplay > vy) {

-			vx = p->HDisplay;

-			vy = p->VDisplay;

-		    }

-		}

-		if (vx && vy)

-		    /* Found one */

-		    break;

-	    }

-	    xf86DrvMsg(scrp->scrnIndex, X_WARNING,

-		       "Shrinking virtual size estimate from %dx%d to %dx%d\n",

-		       virtX, virtY, vx, vy);

-	    virtX = _VIRTUALX(vx);

-	    virtY = vy;

-	    for (p = scrp->modes; p; p = p->next) {

-		if (numModes > 0) {

-		    if (p->HDisplay > virtX)

-			p->status = MODE_VIRTUAL_X;

-		    if (p->VDisplay > virtY)

-			p->status = MODE_VIRTUAL_Y;

-		    if (p->status != MODE_OK) {

-			numModes--;

-			printModeRejectMessage(scrp->scrnIndex, p, p->status);

-		    }

-		}

-	    }

-	    if (linePitches != NULL) {

-		for (i = 0; linePitches[i] != 0; i++) {

-		    if ((linePitches[i] >= virtX) &&

-			(linePitches[i] ==

-			scanLineWidth(virtX, virtY, linePitches[i],

-				      apertureSize, BankFormat, pitchInc))) {

-			linePitch = linePitches[i];

-			break;

-		    }

-		}

-	    } else {

-		linePitch = scanLineWidth(virtX, virtY, minPitch,

-					  apertureSize, BankFormat, pitchInc);

-	    }

-	}

-    }

-

-    /* Update the ScrnInfoRec parameters */

-    

-    scrp->virtualX = virtX;

-    scrp->virtualY = virtY;

-    scrp->displayWidth = linePitch;

-

-    if (numModes <= 0)

-	return 0;

-    

-    /* Make the mode list into a circular list by joining up the ends */

-    p = scrp->modes;

-    while (p->next != NULL)

-	p = p->next;

-    /* p is now the last mode on the list */

-    p->next = scrp->modes;

-    scrp->modes->prev = p;

-

-    if (minHeight > 0 && virtY < minHeight) {

-	xf86DrvMsg(scrp->scrnIndex, X_ERROR,

-		   "Virtual height (%d) is too small for the hardware "

-		   "(min %d)\n", virtY, minHeight);

-	return -1;

-    }

-

-    return numModes;

-}

-

-/*

- * xf86DeleteMode

- *

- * This function removes a mode from a list of modes.

- *

- * There are different types of mode lists:

- *

- *  - singly linked linear lists, ending in NULL

- *  - doubly linked linear lists, starting and ending in NULL

- *  - doubly linked circular lists

- *

- */

- 

-void

-xf86DeleteMode(DisplayModePtr *modeList, DisplayModePtr mode)

-{

-    /* Catch the easy/insane cases */

-    if (modeList == NULL || *modeList == NULL || mode == NULL)

-	return;

-

-    /* If the mode is at the start of the list, move the start of the list */

-    if (*modeList == mode)

-	*modeList = mode->next;

-

-    /* If mode is the only one on the list, set the list to NULL */

-    if ((mode == mode->prev) && (mode == mode->next)) {

-	*modeList = NULL;

-    } else {

-	if ((mode->prev != NULL) && (mode->prev->next == mode))

-	    mode->prev->next = mode->next;

-	if ((mode->next != NULL) && (mode->next->prev == mode))

-	    mode->next->prev = mode->prev;

-    }

-

-    free(mode->name);

-    free(mode);

-}

-

-/*

- * xf86PruneDriverModes

- *

- * Remove modes from the driver's mode list which have been marked as

- * invalid.

- */

-

-void

-xf86PruneDriverModes(ScrnInfoPtr scrp)

-{

-    DisplayModePtr first, p, n;

-

-    p = scrp->modes;

-    if (p == NULL)

-	return;

-

-    do {

-	if (!(first = scrp->modes))

-	    return;

-	n = p->next;

-	if (p->status != MODE_OK) {

-	    xf86DeleteMode(&(scrp->modes), p);

-	}

-	p = n;

-    } while (p != NULL && p != first);

-

-    /* modePool is no longer needed, turf it */

-    while (scrp->modePool) {

-	/*

-	 * A modePool mode's prev field is used to hold a pointer to the

-	 * member of the scrp->modes list for which a match was considered.

-	 * Clear that pointer first, otherwise xf86DeleteMode might get 

-	 * confused 

-	 */

-	scrp->modePool->prev = NULL;

-	xf86DeleteMode(&scrp->modePool, scrp->modePool);

-    }

-}

-

-

-/*

- * xf86SetCrtcForModes

- *

- * Goes through the screen's mode list, and initialises the Crtc

- * parameters for each mode.  The initialisation includes adjustments

- * for interlaced and double scan modes.

- */

-void

-xf86SetCrtcForModes(ScrnInfoPtr scrp, int adjustFlags)

-{

-    DisplayModePtr p;

-

-    /*

-     * Store adjustFlags for use with the VidMode extension. There is an

-     * implicit assumption here that SetCrtcForModes is called once.

-     */

-    scrp->adjustFlags = adjustFlags;

-

-    p = scrp->modes;

-    if (p == NULL)

-	return;

-

-    do {

-	xf86SetModeCrtc(p, adjustFlags);

-	DebugF("%sMode %s: %d (%d) %d %d (%d) %d %d (%d) %d %d (%d) %d\n",

-	       (p->type & M_T_DEFAULT) ? "Default " : "",

-	       p->name, p->CrtcHDisplay, p->CrtcHBlankStart,

-	       p->CrtcHSyncStart, p->CrtcHSyncEnd, p->CrtcHBlankEnd,

-	       p->CrtcHTotal, p->CrtcVDisplay, p->CrtcVBlankStart,

-	       p->CrtcVSyncStart, p->CrtcVSyncEnd, p->CrtcVBlankEnd,

-	       p->CrtcVTotal);

-	p = p->next;

-    } while (p != NULL && p != scrp->modes);

-}

-

-void

-xf86PrintModes(ScrnInfoPtr scrp)

-{

-    DisplayModePtr p;

-    float hsync, refresh = 0;

-    char *desc, *desc2, *prefix, *uprefix;

-

-    if (scrp == NULL)

-	return;

-

-    xf86DrvMsg(scrp->scrnIndex, scrp->virtualFrom, "Virtual size is %dx%d "

-	       "(pitch %d)\n", scrp->virtualX, scrp->virtualY,

-	       scrp->displayWidth);

-    

-    p = scrp->modes;

-    if (p == NULL)

-	return;

-

-    do {

-	desc = desc2 = "";

-	hsync = xf86ModeHSync(p);

-	refresh = xf86ModeVRefresh(p);

-	if (p->Flags & V_INTERLACE) {

-	    desc = " (I)";

-	}

-	if (p->Flags & V_DBLSCAN) {

-	    desc = " (D)";

-	}

-	if (p->VScan > 1) {

-	    desc2 = " (VScan)";

-	}

-	if (p->type & M_T_BUILTIN)

-	    prefix = "Built-in mode";

-	else if (p->type & M_T_DEFAULT)

-	    prefix = "Default mode";

-	else if (p->type & M_T_DRIVER)

-	    prefix = "Driver mode";

-	else

-	    prefix = "Mode";

-	if (p->type & M_T_USERDEF)

-	    uprefix = "*";

-	else

-	    uprefix = " ";

-	if (hsync == 0 || refresh == 0) {

-	    if (p->name)

-		xf86DrvMsg(scrp->scrnIndex, X_CONFIG,

-			   "%s%s \"%s\"\n", uprefix, prefix, p->name);

-	    else

-		xf86DrvMsg(scrp->scrnIndex, X_PROBED,

-			   "%s%s %dx%d (unnamed)\n",

-			   uprefix, prefix, p->HDisplay, p->VDisplay);

-	} else if (p->Clock == p->SynthClock) {

-	    xf86DrvMsg(scrp->scrnIndex, X_CONFIG,

-			"%s%s \"%s\": %.1f MHz, %.1f kHz, %.1f Hz%s%s\n",

-			uprefix, prefix, p->name, p->Clock / 1000.0,

-			hsync, refresh, desc, desc2);

-	} else {

-	    xf86DrvMsg(scrp->scrnIndex, X_CONFIG,

-			"%s%s \"%s\": %.1f MHz (scaled from %.1f MHz), "

-			"%.1f kHz, %.1f Hz%s%s\n",

-			uprefix, prefix, p->name, p->Clock / 1000.0,

-			p->SynthClock / 1000.0, hsync, refresh, desc, desc2);

-	}

-	if (hsync != 0 && refresh != 0)

-	    xf86PrintModeline(scrp->scrnIndex,p);

-	p = p->next;

-    } while (p != NULL && p != scrp->modes);

-}

+/*
+ * 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).
+ */
+
+/*
+ * LCM() and scanLineWidth() are:
+ *
+ * Copyright 1997 through 2004 by Marc Aurele La France (TSI @ UQV), tsi@xfree86.org
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of Marc Aurele La France not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  Marc Aurele La France makes no representations
+ * about the suitability of this software for any purpose.  It is provided
+ * "as-is" without express or implied warranty.
+ *
+ * MARC AURELE LA FRANCE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.  IN NO
+ * EVENT SHALL MARC AURELE LA FRANCE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Copyright 1990,91,92,93 by Thomas Roell, Germany.
+ * Copyright 1991,92,93    by SGCS (Snitily Graphics Consulting Services), USA.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this  permission notice appear
+ * in supporting documentation, and that the name of Thomas Roell nor
+ * SGCS be used in advertising or publicity pertaining to distribution
+ * of the software without specific, written prior permission.
+ * Thomas Roell nor SGCS makes no representations about the suitability
+ * of this software for any purpose. It is provided "as is" without
+ * express or implied warranty.
+ *
+ * THOMAS ROELL AND SGCS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL THOMAS ROELL OR SGCS BE LIABLE FOR ANY
+ * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
+ * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * Authors: Dirk Hohndel <hohndel@XFree86.Org>
+ *          David Dawes <dawes@XFree86.Org>
+ *          Marc La France <tsi@XFree86.Org>
+ *          ... and others
+ *
+ * This file includes helper functions for mode related things.
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <X11/X.h>
+#include "xf86Modes.h"
+#include "os.h"
+#include "servermd.h"
+#include "globals.h"
+#include "xf86.h"
+#include "xf86Priv.h"
+#include "edid.h"
+
+static void
+printModeRejectMessage(int index, DisplayModePtr p, int status)
+{
+    const char *type;
+
+    if (p->type & M_T_BUILTIN)
+	type = "built-in ";
+    else if (p->type & M_T_DEFAULT)
+	type = "default ";
+    else if (p->type & M_T_DRIVER)
+	type = "driver ";
+    else
+	type = "";
+
+    xf86DrvMsg(index, X_INFO, "Not using %smode \"%s\" (%s)\n", type, p->name,
+	       xf86ModeStatusToString(status));
+}
+
+/*
+ * xf86GetNearestClock --
+ *	Find closest clock to given frequency (in kHz).  This assumes the
+ *	number of clocks is greater than zero.
+ */
+int
+xf86GetNearestClock(ScrnInfoPtr scrp, int freq, Bool allowDiv2,
+    int DivFactor, int MulFactor, int *divider)
+{
+    int nearestClock = 0, nearestDiv = 1;
+    int minimumGap = abs(freq - scrp->clock[0]);
+    int i, j, k, gap;
+
+    if (allowDiv2)
+	k = 2;
+    else
+	k = 1;
+
+    /* Must set this here in case the best match is scrp->clock[0] */
+    if (divider != NULL)
+	*divider = 0;
+    
+    for (i = 0;  i < scrp->numClocks;  i++) {
+	for (j = 1; j <= k; j++) {
+	    gap = abs((freq * j) - ((scrp->clock[i] * DivFactor) / MulFactor));
+	    if ((gap < minimumGap) ||
+		((gap == minimumGap) && (j < nearestDiv))) {
+		minimumGap = gap;
+		nearestClock = i;
+		nearestDiv = j;
+		if (divider != NULL)
+		    *divider = (j - 1) * V_CLKDIV2;
+	    }
+	}
+    }
+    return nearestClock;
+}
+
+/*
+ * xf86ModeStatusToString
+ *
+ * Convert a ModeStatus value to a printable message
+ */
+
+const char *
+xf86ModeStatusToString(ModeStatus status)
+{
+    switch (status) {
+    case MODE_OK:
+	return "Mode OK";
+    case MODE_HSYNC:
+	return "hsync out of range";
+    case MODE_VSYNC:
+	return "vrefresh out of range";
+    case MODE_H_ILLEGAL:
+	return "illegal horizontal timings";
+    case MODE_V_ILLEGAL:
+	return "illegal vertical timings";
+    case MODE_BAD_WIDTH:
+	return "width requires unsupported line pitch";
+    case MODE_NOMODE:
+	return "no mode of this name";
+    case MODE_NO_INTERLACE:
+	return "interlace mode not supported";
+    case MODE_NO_DBLESCAN:
+	return "doublescan mode not supported";
+    case MODE_NO_VSCAN:
+	return "multiscan mode not supported";
+    case MODE_MEM:
+	return "insufficient memory for mode";
+    case MODE_VIRTUAL_X:
+	return "width too large for virtual size";
+    case MODE_VIRTUAL_Y:
+	return "height too large for virtual size";
+    case MODE_MEM_VIRT:
+	return "insufficient memory given virtual size";
+    case MODE_NOCLOCK:
+	return "no clock available for mode";
+    case MODE_CLOCK_HIGH:
+	return "mode clock too high";
+    case MODE_CLOCK_LOW:
+	return "mode clock too low";
+    case MODE_CLOCK_RANGE:
+	return "bad mode clock/interlace/doublescan";
+    case MODE_BAD_HVALUE:
+	return "horizontal timing out of range";
+    case MODE_BAD_VVALUE:
+	return "vertical timing out of range";
+    case MODE_BAD_VSCAN:
+	return "VScan value out of range";
+    case MODE_HSYNC_NARROW:
+	return "horizontal sync too narrow";
+    case MODE_HSYNC_WIDE:
+	return "horizontal sync too wide";
+    case MODE_HBLANK_NARROW:
+	return "horizontal blanking too narrow";
+    case MODE_HBLANK_WIDE:
+	return "horizontal blanking too wide";
+    case MODE_VSYNC_NARROW:
+	return "vertical sync too narrow";
+    case MODE_VSYNC_WIDE:
+	return "vertical sync too wide";
+    case MODE_VBLANK_NARROW:
+	return "vertical blanking too narrow";
+    case MODE_VBLANK_WIDE:
+	return "vertical blanking too wide";
+    case MODE_PANEL:
+	return "exceeds panel dimensions";
+    case MODE_INTERLACE_WIDTH:
+	return "width too large for interlaced mode";
+    case MODE_ONE_WIDTH:
+        return "all modes must have the same width";
+    case MODE_ONE_HEIGHT:
+        return "all modes must have the same height";
+    case MODE_ONE_SIZE:
+        return "all modes must have the same resolution";
+    case MODE_NO_REDUCED:
+        return "monitor doesn't support reduced blanking";
+    case MODE_BANDWIDTH:
+	return "mode requires too much memory bandwidth";
+    case MODE_BAD:
+	return "unknown reason";
+    case MODE_ERROR:
+	return "internal error";
+    default:
+	return "unknown";
+    }
+}
+
+/*
+ * xf86ShowClockRanges() -- Print the clock ranges allowed
+ * and the clock values scaled by ClockMulFactor and ClockDivFactor
+ */
+void
+xf86ShowClockRanges(ScrnInfoPtr scrp, ClockRangePtr clockRanges)
+{
+    ClockRangePtr cp;
+    int MulFactor = 1;
+    int DivFactor = 1;
+    int i, j;
+    int scaledClock;
+
+    for (cp = clockRanges; cp != NULL; cp = cp->next) {
+	DivFactor = max(1, cp->ClockDivFactor);
+	MulFactor = max(1, cp->ClockMulFactor);
+	if (scrp->progClock) {
+	    if (cp->minClock) {
+		if (cp->maxClock) {
+		    xf86DrvMsg(scrp->scrnIndex, X_INFO,
+			"Clock range: %6.2f to %6.2f MHz\n",
+			(double)cp->minClock / 1000.0,
+			(double)cp->maxClock / 1000.0);
+		} else {
+		    xf86DrvMsg(scrp->scrnIndex, X_INFO,
+			"Minimum clock: %6.2f MHz\n",
+			(double)cp->minClock / 1000.0);
+		}
+	    } else {
+		if (cp->maxClock) {
+		    xf86DrvMsg(scrp->scrnIndex, X_INFO,
+			"Maximum clock: %6.2f MHz\n",
+			(double)cp->maxClock / 1000.0);
+		}
+	    }
+	} else if (DivFactor > 1 || MulFactor > 1) {
+	    j = 0;
+	    for (i = 0; i < scrp->numClocks; i++) {
+		scaledClock = (scrp->clock[i] * DivFactor) / MulFactor;
+		if (scaledClock >= cp->minClock && scaledClock <= cp->maxClock) {
+		    if ((j % 8) == 0) {
+			if (j > 0)
+			    xf86ErrorF("\n");
+			xf86DrvMsg(scrp->scrnIndex, X_INFO, "scaled clocks:");
+		    }
+		    xf86ErrorF(" %6.2f", (double)scaledClock / 1000.0);
+		    j++;
+		}
+	    }
+	    xf86ErrorF("\n");
+	}
+    }
+}
+
+static Bool
+modeInClockRange(ClockRangePtr cp, DisplayModePtr p)
+{
+    return ((p->Clock >= cp->minClock) &&
+	    (p->Clock <= cp->maxClock) &&
+	    (cp->interlaceAllowed || !(p->Flags & V_INTERLACE)) &&
+	    (cp->doubleScanAllowed ||
+	     ((p->VScan <= 1) && !(p->Flags & V_DBLSCAN))));
+}
+
+/*
+ * xf86FindClockRangeForMode()    [... like the name says ...]
+ */
+static ClockRangePtr
+xf86FindClockRangeForMode(ClockRangePtr clockRanges, DisplayModePtr p)
+{
+    ClockRangePtr cp;
+
+    for (cp = clockRanges; ; cp = cp->next)
+	if (!cp || modeInClockRange(cp, p))
+	    return cp;
+}
+
+
+/*
+ * xf86HandleBuiltinMode() - handles built-in modes
+ */
+static ModeStatus
+xf86HandleBuiltinMode(ScrnInfoPtr scrp,
+		      DisplayModePtr p,
+		      DisplayModePtr modep,
+		      ClockRangePtr clockRanges,
+		      Bool allowDiv2)
+{
+    ClockRangePtr cp;
+    int extraFlags = 0;
+    int MulFactor = 1;
+    int DivFactor = 1;
+    int clockIndex;
+    
+    /* Reject previously rejected modes */
+    if (p->status != MODE_OK)
+	return p->status;
+
+    /* Reject previously considered modes */
+    if (p->prev)
+        return MODE_NOMODE;
+
+    if ((p->type & M_T_CLOCK_C) == M_T_CLOCK_C) {
+	/* Check clock is in range */
+	cp = xf86FindClockRangeForMode(clockRanges, p);
+	if (cp == NULL){
+	    modep->type = p->type;
+	    p->status = MODE_CLOCK_RANGE;
+	    return MODE_CLOCK_RANGE;
+	}
+	DivFactor = cp->ClockDivFactor;
+	MulFactor = cp->ClockMulFactor;
+	if (!scrp->progClock) {
+	    clockIndex = xf86GetNearestClock(scrp, p->Clock, allowDiv2,
+					     cp->ClockDivFactor,
+					     cp->ClockMulFactor, &extraFlags);
+	    modep->Clock = (scrp->clock[clockIndex] * DivFactor)
+		/ MulFactor;
+	    modep->ClockIndex	= clockIndex;
+	    modep->SynthClock	= scrp->clock[clockIndex];
+	    if (extraFlags & V_CLKDIV2) {
+		modep->Clock /= 2;
+		modep->SynthClock /= 2;
+	    }
+	} else {
+	    modep->Clock = p->Clock;
+	    modep->ClockIndex = -1;
+	    modep->SynthClock = (modep->Clock * MulFactor)
+		/ DivFactor;
+	}
+	modep->PrivFlags = cp->PrivFlags;
+    } else {
+	if(!scrp->progClock) {
+            modep->Clock = p->Clock;
+	    modep->ClockIndex = p->ClockIndex;
+	    modep->SynthClock = p->SynthClock;
+	} else {
+	    modep->Clock = p->Clock;
+	    modep->ClockIndex = -1;
+	    modep->SynthClock = p->SynthClock;
+	}
+	modep->PrivFlags = p->PrivFlags;
+    }
+    modep->type            = p->type;
+    modep->HDisplay        = p->HDisplay;
+    modep->HSyncStart      = p->HSyncStart;
+    modep->HSyncEnd        = p->HSyncEnd;
+    modep->HTotal          = p->HTotal;
+    modep->HSkew           = p->HSkew;
+    modep->VDisplay        = p->VDisplay;
+    modep->VSyncStart      = p->VSyncStart;
+    modep->VSyncEnd        = p->VSyncEnd;
+    modep->VTotal          = p->VTotal;
+    modep->VScan           = p->VScan;
+    modep->Flags           = p->Flags | extraFlags;
+    modep->CrtcHDisplay    = p->CrtcHDisplay;
+    modep->CrtcHBlankStart = p->CrtcHBlankStart;
+    modep->CrtcHSyncStart  = p->CrtcHSyncStart;
+    modep->CrtcHSyncEnd    = p->CrtcHSyncEnd;
+    modep->CrtcHBlankEnd   = p->CrtcHBlankEnd;
+    modep->CrtcHTotal      = p->CrtcHTotal;
+    modep->CrtcHSkew       = p->CrtcHSkew;
+    modep->CrtcVDisplay    = p->CrtcVDisplay;
+    modep->CrtcVBlankStart = p->CrtcVBlankStart;
+    modep->CrtcVSyncStart  = p->CrtcVSyncStart;
+    modep->CrtcVSyncEnd    = p->CrtcVSyncEnd;
+    modep->CrtcVBlankEnd   = p->CrtcVBlankEnd;
+    modep->CrtcVTotal      = p->CrtcVTotal;
+    modep->CrtcHAdjusted   = p->CrtcHAdjusted;
+    modep->CrtcVAdjusted   = p->CrtcVAdjusted;
+    modep->HSync           = p->HSync;
+    modep->VRefresh        = p->VRefresh;
+    modep->Private         = p->Private;
+    modep->PrivSize        = p->PrivSize;
+
+    p->prev = modep;
+    
+    return MODE_OK;
+}
+
+/*
+ * xf86LookupMode
+ *
+ * This function returns a mode from the given list which matches the
+ * given name.  When multiple modes with the same name are available,
+ * the method of picking the matching mode is determined by the
+ * strategy selected.
+ *
+ * This function takes the following parameters:
+ *    scrp         ScrnInfoPtr
+ *    modep        pointer to the returned mode, which must have the name
+ *                 field filled in.
+ *    clockRanges  a list of clock ranges.   This is optional when all the
+ *                 modes are built-in modes.
+ *    strategy     how to decide which mode to use from multiple modes with
+ *                 the same name
+ *
+ * In addition, the following fields from the ScrnInfoRec are used:
+ *    modePool     the list of monitor modes compatible with the driver
+ *    clocks       a list of discrete clocks
+ *    numClocks    number of discrete clocks
+ *    progClock    clock is programmable
+ *
+ * If a mode was found, its values are filled in to the area pointed to
+ * by modep,  If a mode was not found the return value indicates the
+ * reason.
+ */
+
+ModeStatus
+xf86LookupMode(ScrnInfoPtr scrp, DisplayModePtr modep,
+	       ClockRangePtr clockRanges, LookupModeFlags strategy)
+{
+    DisplayModePtr p, bestMode = NULL;
+    ClockRangePtr cp;
+    int i, k, gap, minimumGap = CLOCK_TOLERANCE + 1;
+    double refresh, bestRefresh = 0.0;
+    Bool found = FALSE;
+    int extraFlags = 0;
+    int clockIndex = -1;
+    int MulFactor = 1;
+    int DivFactor = 1;
+    int ModePrivFlags = 0;
+    ModeStatus status = MODE_NOMODE;
+    Bool allowDiv2 = (strategy & LOOKUP_CLKDIV2) != 0;
+    int n;
+    const int types[] = {
+	M_T_BUILTIN | M_T_PREFERRED,
+	M_T_BUILTIN,
+	M_T_USERDEF | M_T_PREFERRED,
+	M_T_USERDEF,
+	M_T_DRIVER | M_T_PREFERRED,
+	M_T_DRIVER,
+	0
+    };
+    const int ntypes = sizeof(types) / sizeof(int);
+
+    strategy &= ~(LOOKUP_CLKDIV2 | LOOKUP_OPTIONAL_TOLERANCES);
+
+    /* Some sanity checking */
+    if (scrp == NULL || scrp->modePool == NULL ||
+	(!scrp->progClock && scrp->numClocks == 0)) {
+	ErrorF("xf86LookupMode: called with invalid scrnInfoRec\n");
+	return MODE_ERROR;
+    }
+    if (modep == NULL || modep->name == NULL) {
+	ErrorF("xf86LookupMode: called with invalid modep\n");
+	return MODE_ERROR;
+    }
+    for (cp = clockRanges; cp != NULL; cp = cp->next) {
+	/* DivFactor and MulFactor must be > 0 */
+	cp->ClockDivFactor = max(1, cp->ClockDivFactor);
+	cp->ClockMulFactor = max(1, cp->ClockMulFactor);
+    }
+
+    /* Scan the mode pool for matching names */
+    for (n = 0; n < ntypes; n++) {
+	int type = types[n];
+	for (p = scrp->modePool; p != NULL; p = p->next) {
+
+	    /* scan through the modes in the sort order above */
+	    if ((p->type & type) != type)
+		continue;
+
+	    if (strcmp(p->name, modep->name) == 0) {
+
+		/* Skip over previously rejected modes */
+		if (p->status != MODE_OK) {
+		    if (!found)
+			status = p->status;
+		    continue;
+		}
+
+		/* Skip over previously considered modes */
+		if (p->prev)
+		    continue;
+
+		if (p->type & M_T_BUILTIN) {
+		    return xf86HandleBuiltinMode(scrp, p,modep, clockRanges,
+			    allowDiv2);
+		}
+
+		/* Check clock is in range */
+		cp = xf86FindClockRangeForMode(clockRanges, p);
+		if (cp == NULL) {
+		    /*
+		     * XXX Could do more here to provide a more detailed
+		     * reason for not finding a mode.
+		     */
+		    p->status = MODE_CLOCK_RANGE;
+		    if (!found)
+			status = MODE_CLOCK_RANGE;
+		    continue;
+		}
+
+		/*
+		 * If programmable clock and strategy is not
+		 * LOOKUP_BEST_REFRESH, the required mode has been found,
+		 * otherwise record the refresh and continue looking.
+		 */
+		if (scrp->progClock) {
+		    found = TRUE;
+		    if (strategy != LOOKUP_BEST_REFRESH) {
+			bestMode = p;
+			DivFactor = cp->ClockDivFactor;
+			MulFactor = cp->ClockMulFactor;
+			ModePrivFlags = cp->PrivFlags;
+			break;
+		    }
+		    refresh = xf86ModeVRefresh(p);
+		    if (p->Flags & V_INTERLACE)
+			refresh /= INTERLACE_REFRESH_WEIGHT;
+		    if (refresh > bestRefresh) {
+			bestMode = p;
+			DivFactor = cp->ClockDivFactor;
+			MulFactor = cp->ClockMulFactor;
+			ModePrivFlags = cp->PrivFlags;
+			bestRefresh = refresh;
+		    }
+		    continue;
+		}
+
+		/*
+		 * Clock is in range, so if it is not a programmable clock, find
+		 * a matching clock.
+		 */
+
+		i = xf86GetNearestClock(scrp, p->Clock, allowDiv2,
+			cp->ClockDivFactor, cp->ClockMulFactor, &k);
+		/*
+		 * If the clock is too far from the requested clock, this
+		 * mode is no good.
+		 */
+		if (k & V_CLKDIV2)
+		    gap = abs((p->Clock * 2) -
+			    ((scrp->clock[i] * cp->ClockDivFactor) /
+				cp->ClockMulFactor));
+		else
+		    gap = abs(p->Clock -
+			    ((scrp->clock[i] * cp->ClockDivFactor) /
+				cp->ClockMulFactor));
+		if (gap > minimumGap) {
+		    p->status = MODE_NOCLOCK;
+		    if (!found)
+			status = MODE_NOCLOCK;
+		    continue;
+		}
+		found = TRUE;
+
+		if (strategy == LOOKUP_BEST_REFRESH) {
+		    refresh = xf86ModeVRefresh(p);
+		    if (p->Flags & V_INTERLACE)
+			refresh /= INTERLACE_REFRESH_WEIGHT;
+		    if (refresh > bestRefresh) {
+			bestMode = p;
+			DivFactor = cp->ClockDivFactor;
+			MulFactor = cp->ClockMulFactor;
+			ModePrivFlags = cp->PrivFlags;
+			extraFlags = k;
+			clockIndex = i;
+			bestRefresh = refresh;
+		    }
+		    continue;
+		}
+		if (strategy == LOOKUP_CLOSEST_CLOCK) {
+		    if (gap < minimumGap) {
+			bestMode = p;
+			DivFactor = cp->ClockDivFactor;
+			MulFactor = cp->ClockMulFactor;
+			ModePrivFlags = cp->PrivFlags;
+			extraFlags = k;
+			clockIndex = i;
+			minimumGap = gap;
+		    }
+		    continue;
+		}
+		/*
+		 * If strategy is neither LOOKUP_BEST_REFRESH or
+		 * LOOKUP_CLOSEST_CLOCK the required mode has been found.
+		 */
+		bestMode = p;
+		DivFactor = cp->ClockDivFactor;
+		MulFactor = cp->ClockMulFactor;
+		ModePrivFlags = cp->PrivFlags;
+		extraFlags = k;
+		clockIndex = i;
+		break;
+	    }
+	}
+	if (found) break;
+    }
+    if (!found || bestMode == NULL)
+	return status;
+
+    /* Fill in the mode parameters */
+    if (scrp->progClock) {
+        modep->Clock		= bestMode->Clock;
+	modep->ClockIndex	= -1;
+	modep->SynthClock	= (modep->Clock * MulFactor) / DivFactor;
+    } else {
+	modep->Clock		= (scrp->clock[clockIndex] * DivFactor) /
+				    MulFactor;
+	modep->ClockIndex	= clockIndex;
+	modep->SynthClock	= scrp->clock[clockIndex];
+	if (extraFlags & V_CLKDIV2) {
+	    modep->Clock /= 2;
+	    modep->SynthClock /= 2;
+	}
+    }
+    modep->type                 = bestMode->type;
+    modep->PrivFlags		= ModePrivFlags;
+    modep->HDisplay		= bestMode->HDisplay;
+    modep->HSyncStart		= bestMode->HSyncStart;
+    modep->HSyncEnd		= bestMode->HSyncEnd;
+    modep->HTotal		= bestMode->HTotal;
+    modep->HSkew		= bestMode->HSkew;
+    modep->VDisplay		= bestMode->VDisplay;
+    modep->VSyncStart		= bestMode->VSyncStart;
+    modep->VSyncEnd		= bestMode->VSyncEnd;
+    modep->VTotal		= bestMode->VTotal;
+    modep->VScan		= bestMode->VScan;
+    modep->Flags		= bestMode->Flags | extraFlags;
+    modep->CrtcHDisplay		= bestMode->CrtcHDisplay;
+    modep->CrtcHBlankStart	= bestMode->CrtcHBlankStart;
+    modep->CrtcHSyncStart	= bestMode->CrtcHSyncStart;
+    modep->CrtcHSyncEnd		= bestMode->CrtcHSyncEnd;
+    modep->CrtcHBlankEnd	= bestMode->CrtcHBlankEnd;
+    modep->CrtcHTotal		= bestMode->CrtcHTotal;
+    modep->CrtcHSkew		= bestMode->CrtcHSkew;
+    modep->CrtcVDisplay		= bestMode->CrtcVDisplay;
+    modep->CrtcVBlankStart	= bestMode->CrtcVBlankStart;
+    modep->CrtcVSyncStart	= bestMode->CrtcVSyncStart;
+    modep->CrtcVSyncEnd		= bestMode->CrtcVSyncEnd;
+    modep->CrtcVBlankEnd	= bestMode->CrtcVBlankEnd;
+    modep->CrtcVTotal		= bestMode->CrtcVTotal;
+    modep->CrtcHAdjusted	= bestMode->CrtcHAdjusted;
+    modep->CrtcVAdjusted	= bestMode->CrtcVAdjusted;
+    modep->HSync		= bestMode->HSync;
+    modep->VRefresh		= bestMode->VRefresh;
+    modep->Private		= bestMode->Private;
+    modep->PrivSize		= bestMode->PrivSize;
+
+    bestMode->prev = modep;
+
+    return MODE_OK;
+}
+
+/*
+ * xf86CheckModeForMonitor
+ *
+ * This function takes a mode and monitor description, and determines
+ * if the mode is valid for the monitor.
+ */
+ModeStatus
+xf86CheckModeForMonitor(DisplayModePtr mode, MonPtr monitor)
+{
+    int i;
+
+    /* Sanity checks */
+    if (mode == NULL || monitor == NULL) {
+	ErrorF("xf86CheckModeForMonitor: called with invalid parameters\n");
+	return MODE_ERROR;
+    }
+
+    DebugF("xf86CheckModeForMonitor(%p %s, %p %s)\n",
+	   mode, mode->name, monitor, monitor->id);
+
+    /* Some basic mode validity checks */
+    if (0 >= mode->HDisplay || mode->HDisplay > mode->HSyncStart ||
+	mode->HSyncStart >= mode->HSyncEnd || mode->HSyncEnd >= mode->HTotal)
+	return MODE_H_ILLEGAL;
+
+    if (0 >= mode->VDisplay || mode->VDisplay > mode->VSyncStart ||
+	mode->VSyncStart >= mode->VSyncEnd || mode->VSyncEnd >= mode->VTotal)
+	return MODE_V_ILLEGAL;
+
+    if (monitor->nHsync > 0) {
+	/* Check hsync against the allowed ranges */
+	float hsync = xf86ModeHSync(mode);
+	for (i = 0; i < monitor->nHsync; i++) 
+	    if ((hsync > monitor->hsync[i].lo * (1.0 - SYNC_TOLERANCE)) &&
+		(hsync < monitor->hsync[i].hi * (1.0 + SYNC_TOLERANCE)))
+		break;
+	
+	/* Now see whether we ran out of sync ranges without finding a match */
+	if (i == monitor->nHsync) 
+	    return MODE_HSYNC;
+    }
+
+    if (monitor->nVrefresh > 0) {
+	/* Check vrefresh against the allowed ranges */
+	float vrefrsh = xf86ModeVRefresh(mode);
+	for (i = 0; i < monitor->nVrefresh; i++)
+	    if ((vrefrsh > monitor->vrefresh[i].lo * (1.0 - SYNC_TOLERANCE)) &&
+		(vrefrsh < monitor->vrefresh[i].hi * (1.0 + SYNC_TOLERANCE)))
+		break;
+
+	/* Now see whether we ran out of refresh ranges without finding a match */
+	if (i == monitor->nVrefresh)
+	    return MODE_VSYNC;
+    }
+
+    /* Force interlaced modes to have an odd VTotal */
+    if (mode->Flags & V_INTERLACE)
+	mode->CrtcVTotal = mode->VTotal |= 1;
+
+    /*
+     * This code stops cvt -r modes, and only cvt -r modes, from hitting 15y+
+     * old CRTs which might, when there is a lot of solar flare activity and
+     * when the celestial bodies are unfavourably aligned, implode trying to
+     * sync to it. It's called "Protecting the user from doing anything stupid".
+     * -- libv
+     */
+
+    if (xf86ModeIsReduced(mode)) {
+        if (!monitor->reducedblanking && !(mode->type & M_T_DRIVER))
+            return MODE_NO_REDUCED;
+    }
+
+    if ((monitor->maxPixClock) && (mode->Clock > monitor->maxPixClock))
+	return MODE_CLOCK_HIGH;
+
+    return MODE_OK;
+}
+
+/*
+ * xf86CheckModeSize
+ *
+ * An internal routine to check if a mode fits in video memory.  This tries to
+ * avoid overflows that would otherwise occur when video memory size is greater
+ * than 256MB.
+ */
+static Bool
+xf86CheckModeSize(ScrnInfoPtr scrp, int w, int x, int y)
+{
+    int bpp = scrp->fbFormat.bitsPerPixel,
+	pad = scrp->fbFormat.scanlinePad;
+    int lineWidth, lastWidth;
+
+    if (scrp->depth == 4)
+	pad *= 4;		/* 4 planes */
+
+    /* Sanity check */
+    if ((w < 0) || (x < 0) || (y <= 0))
+	return FALSE;
+
+    lineWidth = (((w * bpp) + pad - 1) / pad) * pad;
+    lastWidth = x * bpp;
+
+    /*
+     * At this point, we need to compare
+     *
+     *	(lineWidth * (y - 1)) + lastWidth
+     *
+     * against
+     *
+     *	scrp->videoRam * (1024 * 8)
+     *
+     * These are bit quantities.  To avoid overflows, do the comparison in
+     * terms of BITMAP_SCANLINE_PAD units.  This assumes BITMAP_SCANLINE_PAD
+     * is a power of 2.  We currently use 32, which limits us to a video
+     * memory size of 8GB.
+     */
+
+    lineWidth = (lineWidth + (BITMAP_SCANLINE_PAD - 1)) / BITMAP_SCANLINE_PAD;
+    lastWidth = (lastWidth + (BITMAP_SCANLINE_PAD - 1)) / BITMAP_SCANLINE_PAD;
+
+    if ((lineWidth * (y - 1) + lastWidth) >
+	(scrp->videoRam * ((1024 * 8) / BITMAP_SCANLINE_PAD)))
+	return FALSE;
+
+    return TRUE;
+}
+
+/*
+ * xf86InitialCheckModeForDriver
+ *
+ * This function checks if a mode satisfies a driver's initial requirements:
+ *   -  mode size fits within the available pixel area (memory)
+ *   -  width lies within the range of supported line pitches
+ *   -  mode size fits within virtual size (if fixed)
+ *   -  horizontal timings are in range
+ *
+ * This function takes the following parameters:
+ *    scrp         ScrnInfoPtr
+ *    mode         mode to check
+ *    maxPitch     (optional) maximum line pitch
+ *    virtualX     (optional) virtual width requested
+ *    virtualY     (optional) virtual height requested
+ *
+ * In addition, the following fields from the ScrnInfoRec are used:
+ *    monitor      pointer to structure for monitor section
+ *    fbFormat     pixel format for the framebuffer
+ *    videoRam     video memory size (in kB)
+ *    maxHValue    maximum horizontal timing value
+ *    maxVValue    maximum vertical timing value
+ */
+
+ModeStatus
+xf86InitialCheckModeForDriver(ScrnInfoPtr scrp, DisplayModePtr mode,
+			      ClockRangePtr clockRanges,
+			      LookupModeFlags strategy,
+			      int maxPitch, int virtualX, int virtualY)
+{
+    ClockRangePtr cp;
+    ModeStatus status;
+    Bool allowDiv2 = (strategy & LOOKUP_CLKDIV2) != 0;
+    int i, needDiv2;
+    
+    /* Sanity checks */
+    if (!scrp || !mode || !clockRanges) {
+	ErrorF("xf86InitialCheckModeForDriver: "
+		"called with invalid parameters\n");
+	return MODE_ERROR;
+    }
+
+    DebugF("xf86InitialCheckModeForDriver(%p, %p %s, %p, 0x%x, %d, %d, %d)\n",
+	   scrp, mode, mode->name , clockRanges, strategy, maxPitch,  virtualX, virtualY);
+
+    /* Some basic mode validity checks */
+    if (0 >= mode->HDisplay || mode->HDisplay > mode->HSyncStart ||
+	mode->HSyncStart >= mode->HSyncEnd || mode->HSyncEnd >= mode->HTotal)
+	return MODE_H_ILLEGAL;
+
+    if (0 >= mode->VDisplay || mode->VDisplay > mode->VSyncStart ||
+	mode->VSyncStart >= mode->VSyncEnd || mode->VSyncEnd >= mode->VTotal)
+	return MODE_V_ILLEGAL;
+
+    if (!xf86CheckModeSize(scrp, mode->HDisplay, mode->HDisplay,
+				 mode->VDisplay))
+        return MODE_MEM;
+
+    if (maxPitch > 0 && mode->HDisplay > maxPitch)
+	return MODE_BAD_WIDTH;
+
+    if (virtualX > 0 && mode->HDisplay > virtualX)
+	return MODE_VIRTUAL_X;
+
+    if (virtualY > 0 && mode->VDisplay > virtualY)
+	return MODE_VIRTUAL_Y;
+
+    if (scrp->maxHValue > 0 && mode->HTotal > scrp->maxHValue)
+	return MODE_BAD_HVALUE;
+
+    if (scrp->maxVValue > 0 && mode->VTotal > scrp->maxVValue)
+	return MODE_BAD_VVALUE;
+
+    /*
+     * The use of the DisplayModeRec's Crtc* and SynthClock elements below is
+     * provisional, in that they are later reused by the driver at mode-set
+     * time.  Here, they are temporarily enlisted to contain the mode timings
+     * as seen by the CRT or panel (rather than the CRTC).  The driver's
+     * ValidMode() is allowed to modify these so it can deal with such things
+     * as mode stretching and/or centering.  The driver should >NOT< modify the
+     * user-supplied values as these are reported back when mode validation is
+     * said and done.
+     */
+    /*
+     * NOTE: We (ab)use the mode->Crtc* values here to store timing
+     * information for the calculation of Hsync and Vrefresh. Before
+     * these values are calculated the driver is given the opportunity
+     * to either set these HSync and VRefresh itself or modify the timing
+     * values.
+     * The difference to the final calculation is small but imortand:
+     * here we pass the flag INTERLACE_HALVE_V regardless if the driver
+     * sets it or not. This way our calculation of VRefresh has the same
+     * effect as if we do if (flags & V_INTERLACE) refresh *= 2.0
+     * This dual use of the mode->Crtc* values will certainly create
+     * confusion and is bad software design. However since it's part of
+     * the driver API it's hard to change.
+     */
+     
+    if (scrp->ValidMode) {
+	
+	xf86SetModeCrtc(mode, INTERLACE_HALVE_V);
+
+	cp = xf86FindClockRangeForMode(clockRanges, mode);
+	if (!cp)
+	    return MODE_CLOCK_RANGE;
+
+	if (cp->ClockMulFactor < 1)
+	    cp->ClockMulFactor = 1;
+	if (cp->ClockDivFactor < 1)
+	    cp->ClockDivFactor = 1;
+	
+	/*
+	 * XXX  The effect of clock dividers and multipliers on the monitor's
+	 *      pixel clock needs to be verified.
+	 */
+	if (scrp->progClock) {
+	    mode->SynthClock = mode->Clock;
+	} else {
+	    i = xf86GetNearestClock(scrp, mode->Clock, allowDiv2,
+				    cp->ClockDivFactor, cp->ClockMulFactor,
+				    &needDiv2);
+	    mode->SynthClock = (scrp->clock[i] * cp->ClockDivFactor) /
+		cp->ClockMulFactor;
+	    if (needDiv2 & V_CLKDIV2)
+		mode->SynthClock /= 2;
+	}
+
+	status = (*scrp->ValidMode)(scrp->scrnIndex, mode, FALSE,
+				    MODECHECK_INITIAL);
+	if (status != MODE_OK)
+	    return status;
+
+	if (mode->HSync <= 0.0)
+	    mode->HSync = (float)mode->SynthClock / (float)mode->CrtcHTotal;
+	if (mode->VRefresh <= 0.0)
+	    mode->VRefresh = (mode->SynthClock * 1000.0)
+		/ (mode->CrtcHTotal * mode->CrtcVTotal);
+    }
+    
+    mode->HSync = xf86ModeHSync(mode);
+    mode->VRefresh = xf86ModeVRefresh(mode);
+
+    /* Assume it is OK */
+    return MODE_OK;
+}
+
+/*
+ * xf86CheckModeForDriver
+ *
+ * This function is for checking modes while the server is running (for
+ * use mainly by the VidMode extension).
+ *
+ * This function checks if a mode satisfies a driver's requirements:
+ *   -  width lies within the line pitch
+ *   -  mode size fits within virtual size
+ *   -  horizontal/vertical timings are in range
+ *
+ * This function takes the following parameters:
+ *    scrp         ScrnInfoPtr
+ *    mode         mode to check
+ *    flags        not (currently) used
+ *
+ * In addition, the following fields from the ScrnInfoRec are used:
+ *    maxHValue    maximum horizontal timing value
+ *    maxVValue    maximum vertical timing value
+ *    virtualX     virtual width
+ *    virtualY     virtual height
+ *    clockRanges  allowable clock ranges
+ */
+
+ModeStatus
+xf86CheckModeForDriver(ScrnInfoPtr scrp, DisplayModePtr mode, int flags)
+{
+    ClockRangePtr cp;
+    int i, k, gap, minimumGap = CLOCK_TOLERANCE + 1;
+    int extraFlags = 0;
+    int clockIndex = -1;
+    int MulFactor = 1;
+    int DivFactor = 1;
+    int ModePrivFlags = 0;
+    ModeStatus status = MODE_NOMODE;
+
+    /* Some sanity checking */
+    if (scrp == NULL ||	(!scrp->progClock && scrp->numClocks == 0)) {
+	ErrorF("xf86CheckModeForDriver: called with invalid scrnInfoRec\n");
+	return MODE_ERROR;
+    }
+    if (mode == NULL) {
+	ErrorF("xf86CheckModeForDriver: called with invalid modep\n");
+	return MODE_ERROR;
+    }
+
+    /* Check the mode size */
+    if (mode->HDisplay > scrp->virtualX)
+	return MODE_VIRTUAL_X;
+
+    if (mode->VDisplay > scrp->virtualY)
+	return MODE_VIRTUAL_Y;
+
+    if (scrp->maxHValue > 0 && mode->HTotal > scrp->maxHValue)
+	return MODE_BAD_HVALUE;
+
+    if (scrp->maxVValue > 0 && mode->VTotal > scrp->maxVValue)
+	return MODE_BAD_VVALUE;
+
+    for (cp = scrp->clockRanges; cp != NULL; cp = cp->next) {
+	/* DivFactor and MulFactor must be > 0 */
+	cp->ClockDivFactor = max(1, cp->ClockDivFactor);
+	cp->ClockMulFactor = max(1, cp->ClockMulFactor);
+    }
+
+    if (scrp->progClock) {
+	/* Check clock is in range */
+	for (cp = scrp->clockRanges; cp != NULL; cp = cp->next) {
+	    if (modeInClockRange(cp, mode))
+	        break;
+	}
+	if (cp == NULL) {
+	    return MODE_CLOCK_RANGE;
+	}
+	/*
+	 * If programmable clock the required mode has been found
+	 */
+    	DivFactor = cp->ClockDivFactor;
+	MulFactor = cp->ClockMulFactor;
+	ModePrivFlags = cp->PrivFlags;
+    } else {
+	 status = MODE_CLOCK_RANGE;
+	/* Check clock is in range */
+	for (cp = scrp->clockRanges; cp != NULL; cp = cp->next) {
+	    if (modeInClockRange(cp, mode)) {
+		/*
+	 	 * Clock is in range, so if it is not a programmable clock,
+		 * find a matching clock.
+		 */
+    
+		i = xf86GetNearestClock(scrp, mode->Clock, 0,
+			   cp->ClockDivFactor, cp->ClockMulFactor, &k);
+		/*
+		 * If the clock is too far from the requested clock, this
+		 * mode is no good.
+		 */
+		if (k & V_CLKDIV2)
+		    gap = abs((mode->Clock * 2) -
+			      ((scrp->clock[i] * cp->ClockDivFactor) /
+			       cp->ClockMulFactor));
+		else
+		    gap = abs(mode->Clock -
+			      ((scrp->clock[i] * cp->ClockDivFactor) /
+			       cp->ClockMulFactor));
+		if (gap > minimumGap) {
+		    status = MODE_NOCLOCK;
+		    continue;
+		}
+		
+		DivFactor = cp->ClockDivFactor;
+		MulFactor = cp->ClockMulFactor;
+		ModePrivFlags = cp->PrivFlags;
+		extraFlags = k;
+		clockIndex = i;
+		break;
+	    }
+	}
+	if (cp == NULL)
+	    return status;
+    }
+
+    /* Fill in the mode parameters */
+    if (scrp->progClock) {
+	mode->ClockIndex	= -1;
+	mode->SynthClock	= (mode->Clock * MulFactor) / DivFactor;
+    } else {
+	mode->Clock		= (scrp->clock[clockIndex] * DivFactor) / MulFactor;
+	mode->ClockIndex	= clockIndex;
+	mode->SynthClock	= scrp->clock[clockIndex];
+	if (extraFlags & V_CLKDIV2) {
+	    mode->Clock /= 2;
+	    mode->SynthClock /= 2;
+	}
+    }
+    mode->PrivFlags		= ModePrivFlags;
+
+    return MODE_OK;
+}
+
+static int 
+inferVirtualSize(ScrnInfoPtr scrp, DisplayModePtr modes, int *vx, int *vy)
+{
+    float aspect = 0.0;
+    MonPtr mon = scrp->monitor;
+    xf86MonPtr DDC;
+    int x = 0, y = 0;
+    DisplayModePtr mode;
+
+    if (!mon) return 0;
+    DDC = mon->DDC;
+
+    if (DDC && DDC->ver.revision >= 4) {
+	/* For 1.4, we might actually get native pixel format.  How novel. */
+	if (PREFERRED_TIMING_MODE(DDC->features.msc)) {
+		for (mode = modes; mode; mode = mode->next) {
+		    if (mode->type & (M_T_DRIVER | M_T_PREFERRED)) {
+			x = mode->HDisplay;
+			y = mode->VDisplay;
+			goto found;
+		    }
+		}
+	}
+	/*
+	 * Even if we don't, we might get aspect ratio from extra CVT info
+	 * or from the monitor size fields.  TODO.
+	 */
+    }
+
+    /*
+     * Technically this triggers if either is zero.  That wasn't legal
+     * before EDID 1.4, but right now we'll get that wrong. TODO.
+     */
+    if (!aspect) {
+	if (!mon->widthmm || !mon->heightmm)
+	    aspect = 4.0/3.0;
+	else
+	    aspect = (float)mon->widthmm / (float)mon->heightmm;
+    }
+
+    /* find the largest M_T_DRIVER mode with that aspect ratio */
+    for (mode = modes; mode; mode = mode->next) {
+	float mode_aspect, metaspect;
+	if (!(mode->type & (M_T_DRIVER|M_T_USERDEF)))
+	    continue;
+	mode_aspect = (float)mode->HDisplay / (float)mode->VDisplay;
+	metaspect = aspect / mode_aspect;
+	/* 5% slop or so, since we only get size in centimeters */
+	if (fabs(1.0 - metaspect) < 0.05) {
+	    if ((mode->HDisplay > x) && (mode->VDisplay > y)) {
+		x = mode->HDisplay;
+		y = mode->VDisplay;
+	    }
+	}
+    }
+
+    if (!x || !y) {
+	xf86DrvMsg(scrp->scrnIndex, X_WARNING,
+		   "Unable to estimate virtual size\n");
+	return 0;
+    }
+
+found:
+    *vx = x;
+    *vy = y;
+
+    xf86DrvMsg(scrp->scrnIndex, X_INFO,
+	       "Estimated virtual size for aspect ratio %.4f is %dx%d\n",
+	       aspect, *vx, *vy);
+
+    return 1;
+}
+
+/* Least common multiple */
+static unsigned int
+LCM(unsigned int x, unsigned int y)
+{
+    unsigned int m = x, n = y, o;
+
+    while ((o = m % n))
+    {
+        m = n;
+        n = o;
+    }
+
+    return (x / n) * y;
+}
+
+/*
+ * Given various screen attributes, determine the minimum scanline width such
+ * that each scanline is server and DDX padded and any pixels with imbedded
+ * bank boundaries are off-screen.  This function returns -1 if such a width
+ * cannot exist.
+ */
+static int
+scanLineWidth(
+    unsigned int     xsize,         /* pixels */
+    unsigned int     ysize,         /* pixels */
+    unsigned int     width,         /* pixels */
+    unsigned long    BankSize,      /* char's */
+    PixmapFormatRec *pBankFormat,
+    unsigned int     nWidthUnit     /* bits */
+)
+{
+    unsigned long nBitsPerBank, nBitsPerScanline, nBitsPerScanlinePadUnit;
+    unsigned long minBitsPerScanline, maxBitsPerScanline;
+
+    /* Sanity checks */
+
+    if (!nWidthUnit || !pBankFormat)
+        return -1;
+
+    nBitsPerBank = BankSize * 8;
+    if (nBitsPerBank % pBankFormat->scanlinePad)
+        return -1;
+
+    if (xsize > width)
+        width = xsize;
+    nBitsPerScanlinePadUnit = LCM(pBankFormat->scanlinePad, nWidthUnit);
+    nBitsPerScanline =
+        (((width * pBankFormat->bitsPerPixel) + nBitsPerScanlinePadUnit - 1) /
+         nBitsPerScanlinePadUnit) * nBitsPerScanlinePadUnit;
+    width = nBitsPerScanline / pBankFormat->bitsPerPixel;
+
+    if (!xsize || !(nBitsPerBank % pBankFormat->bitsPerPixel))
+        return (int)width;
+
+    /*
+     * Scanlines will be server-pad aligned at this point.  They will also be
+     * a multiple of nWidthUnit bits long.  Ensure that pixels with imbedded
+     * bank boundaries are off-screen.
+     *
+     * It seems reasonable to limit total frame buffer size to 1/16 of the
+     * theoretical maximum address space size.  On a machine with 32-bit
+     * addresses (to 8-bit quantities) this turns out to be 256MB.  Not only
+     * does this provide a simple limiting condition for the loops below, but
+     * it also prevents unsigned long wraparounds.
+     */
+    if (!ysize)
+        return -1;
+
+    minBitsPerScanline = xsize * pBankFormat->bitsPerPixel;
+    if (minBitsPerScanline > nBitsPerBank)
+        return -1;
+
+    if (ysize == 1)
+        return (int)width;
+
+    maxBitsPerScanline =
+        (((unsigned long)(-1) >> 1) - minBitsPerScanline) / (ysize - 1);
+    while (nBitsPerScanline <= maxBitsPerScanline)
+    {
+        unsigned long BankBase, BankUnit;
+
+        BankUnit = ((nBitsPerBank + nBitsPerScanline - 1) / nBitsPerBank) *
+            nBitsPerBank;
+        if (!(BankUnit % nBitsPerScanline))
+            return (int)width;
+
+        for (BankBase = BankUnit;  ;  BankBase += nBitsPerBank)
+        {
+            unsigned long x, y;
+
+            y = BankBase / nBitsPerScanline;
+            if (y >= ysize)
+                return (int)width;
+
+            x = BankBase % nBitsPerScanline;
+            if (!(x % pBankFormat->bitsPerPixel))
+                continue;
+
+            if (x < minBitsPerScanline)
+            {
+                /*
+                 * Skip ahead certain widths by dividing the excess scanline
+                 * amongst the y's.
+                 */
+                y *= nBitsPerScanlinePadUnit;
+                nBitsPerScanline +=
+                    ((x + y - 1) / y) * nBitsPerScanlinePadUnit;
+                width = nBitsPerScanline / pBankFormat->bitsPerPixel;
+                break;
+            }
+
+            if (BankBase != BankUnit)
+                continue;
+
+            if (!(nBitsPerScanline % x))
+                return (int)width;
+
+            BankBase = ((nBitsPerScanline - minBitsPerScanline) /
+                (nBitsPerScanline - x)) * BankUnit;
+        }
+    }
+
+    return -1;
+}
+
+/*
+ * xf86ValidateModes
+ *
+ * This function takes a set of mode names, modes and limiting conditions,
+ * and selects a set of modes and parameters based on those conditions.
+ *
+ * This function takes the following parameters:
+ *    scrp         ScrnInfoPtr
+ *    availModes   the list of modes available for the monitor
+ *    modeNames    (optional) list of mode names that the screen is requesting
+ *    clockRanges  a list of clock ranges
+ *    linePitches  (optional) a list of line pitches
+ *    minPitch     (optional) minimum line pitch (in pixels)
+ *    maxPitch     (optional) maximum line pitch (in pixels)
+ *    pitchInc     (mandatory) pitch increment (in bits)
+ *    minHeight    (optional) minimum virtual height (in pixels)
+ *    maxHeight    (optional) maximum virtual height (in pixels)
+ *    virtualX     (optional) virtual width requested (in pixels)
+ *    virtualY     (optional) virtual height requested (in pixels)
+ *    apertureSize size of video aperture (in bytes)
+ *    strategy     how to decide which mode to use from multiple modes with
+ *                 the same name
+ *
+ * In addition, the following fields from the ScrnInfoRec are used:
+ *    clocks       a list of discrete clocks
+ *    numClocks    number of discrete clocks
+ *    progClock    clock is programmable
+ *    monitor      pointer to structure for monitor section
+ *    fbFormat     format of the framebuffer
+ *    videoRam     video memory size
+ *    maxHValue    maximum horizontal timing value
+ *    maxVValue    maximum vertical timing value
+ *    xInc         horizontal timing increment (defaults to 8 pixels)
+ *
+ * The function fills in the following ScrnInfoRec fields:
+ *    modePool     A subset of the modes available to the monitor which
+ *		   are compatible with the driver.
+ *    modes        one mode entry for each of the requested modes, with the
+ *                 status field filled in to indicate if the mode has been
+ *                 accepted or not.
+ *    virtualX     the resulting virtual width
+ *    virtualY     the resulting virtual height
+ *    displayWidth the resulting line pitch
+ *
+ * The function's return value is the number of matching modes found, or -1
+ * if an unrecoverable error was encountered.
+ */
+
+int
+xf86ValidateModes(ScrnInfoPtr scrp, DisplayModePtr availModes,
+		  char **modeNames, ClockRangePtr clockRanges,
+		  int *linePitches, int minPitch, int maxPitch, int pitchInc,
+		  int minHeight, int maxHeight, int virtualX, int virtualY,
+		  int apertureSize, LookupModeFlags strategy)
+{
+    DisplayModePtr p, q, r, new, last, *endp;
+    int i, numModes = 0;
+    ModeStatus status;
+    int linePitch = -1, virtX = 0, virtY = 0;
+    int newLinePitch, newVirtX, newVirtY;
+    int modeSize;					/* in pixels */
+    Bool validateAllDefaultModes = FALSE;
+    Bool userModes = FALSE;
+    int saveType;
+    PixmapFormatRec *BankFormat;
+    ClockRangePtr cp;
+    ClockRangePtr storeClockRanges;
+    int numTimings = 0;
+    range hsync[MAX_HSYNC];
+    range vrefresh[MAX_VREFRESH];
+    Bool inferred_virtual = FALSE;
+
+    DebugF("xf86ValidateModes(%p, %p, %p, %p,\n\t\t  %p, %d, %d, %d, %d, %d, %d, %d, %d, 0x%x)\n",
+	   scrp, availModes, modeNames, clockRanges,
+	   linePitches, minPitch, maxPitch, pitchInc,
+	   minHeight, maxHeight, virtualX, virtualY,
+	   apertureSize, strategy
+	   );
+
+    /* Some sanity checking */
+    if (scrp == NULL || scrp->name == NULL || !scrp->monitor ||
+	(!scrp->progClock && scrp->numClocks == 0)) {
+	ErrorF("xf86ValidateModes: called with invalid scrnInfoRec\n");
+	return -1;
+    }
+    if (linePitches != NULL && linePitches[0] <= 0) {
+	ErrorF("xf86ValidateModes: called with invalid linePitches\n");
+	return -1;
+    }
+    if (pitchInc <= 0) {
+	ErrorF("xf86ValidateModes: called with invalid pitchInc\n");
+	return -1;
+    }
+    if ((virtualX > 0) != (virtualY > 0)) {
+	ErrorF("xf86ValidateModes: called with invalid virtual resolution\n");
+	return -1;
+    }
+
+    /*
+     * If requested by the driver, allow missing hsync and/or vrefresh ranges
+     * in the monitor section.
+     */
+    if (strategy & LOOKUP_OPTIONAL_TOLERANCES) {
+	strategy &= ~LOOKUP_OPTIONAL_TOLERANCES;
+    } else {
+	const char *type = "";
+        Bool specified = FALSE;
+
+	if (scrp->monitor->nHsync <= 0) {
+	    if (numTimings > 0) {
+		scrp->monitor->nHsync = numTimings;
+		for (i = 0; i < numTimings; i++) {
+		    scrp->monitor->hsync[i].lo = hsync[i].lo;
+		    scrp->monitor->hsync[i].hi = hsync[i].hi;
+		}
+	    } else {
+		scrp->monitor->hsync[0].lo = 31.5;
+		scrp->monitor->hsync[0].hi = 48.0;
+		scrp->monitor->nHsync = 1;
+	    }
+	    type = "default ";
+	} else {
+            specified = TRUE;
+        }
+	for (i = 0; i < scrp->monitor->nHsync; i++) {
+	    if (scrp->monitor->hsync[i].lo == scrp->monitor->hsync[i].hi)
+	      xf86DrvMsg(scrp->scrnIndex, X_INFO,
+			 "%s: Using %shsync value of %.2f kHz\n",
+			 scrp->monitor->id, type,
+			 scrp->monitor->hsync[i].lo);
+	    else
+	      xf86DrvMsg(scrp->scrnIndex, X_INFO,
+			 "%s: Using %shsync range of %.2f-%.2f kHz\n",
+			 scrp->monitor->id, type,
+			 scrp->monitor->hsync[i].lo,
+			 scrp->monitor->hsync[i].hi);
+	}
+
+	type = "";
+	if (scrp->monitor->nVrefresh <= 0) {
+	    if (numTimings > 0) {
+		scrp->monitor->nVrefresh = numTimings;
+		for (i = 0; i < numTimings; i++) {
+		    scrp->monitor->vrefresh[i].lo = vrefresh[i].lo;
+		    scrp->monitor->vrefresh[i].hi = vrefresh[i].hi;
+		}
+	    } else {
+		scrp->monitor->vrefresh[0].lo = 50;
+		scrp->monitor->vrefresh[0].hi = 70;
+		scrp->monitor->nVrefresh = 1;
+	    }
+	    type = "default ";
+	} else {
+            specified = TRUE;
+        }
+	for (i = 0; i < scrp->monitor->nVrefresh; i++) {
+	    if (scrp->monitor->vrefresh[i].lo == scrp->monitor->vrefresh[i].hi)
+	      xf86DrvMsg(scrp->scrnIndex, X_INFO,
+			 "%s: Using %svrefresh value of %.2f Hz\n",
+			 scrp->monitor->id, type,
+			 scrp->monitor->vrefresh[i].lo);
+	    else
+	      xf86DrvMsg(scrp->scrnIndex, X_INFO,
+			 "%s: Using %svrefresh range of %.2f-%.2f Hz\n",
+			 scrp->monitor->id, type,
+			 scrp->monitor->vrefresh[i].lo,
+			 scrp->monitor->vrefresh[i].hi);
+	}
+
+        type = "";
+	if (!scrp->monitor->maxPixClock && !specified) {
+            type = "default ";
+            scrp->monitor->maxPixClock = 65000.0;
+        }
+	if (scrp->monitor->maxPixClock) {
+	    xf86DrvMsg(scrp->scrnIndex, X_INFO,
+		       "%s: Using %smaximum pixel clock of %.2f MHz\n",
+		       scrp->monitor->id, type,
+		       (float)scrp->monitor->maxPixClock / 1000.0);
+	}
+    }
+
+    /*
+     * Store the clockRanges for later use by the VidMode extension.
+     */
+    storeClockRanges = scrp->clockRanges;
+    while (storeClockRanges != NULL) {
+	storeClockRanges = storeClockRanges->next;
+    }
+    for (cp = clockRanges; cp != NULL; cp = cp->next,
+	   	storeClockRanges = storeClockRanges->next) {
+	storeClockRanges = xnfalloc(sizeof(ClockRange));
+	if (scrp->clockRanges == NULL)
+	    scrp->clockRanges = storeClockRanges;
+	memcpy(storeClockRanges, cp, sizeof(ClockRange));
+    }
+
+    /* Determine which pixmap format to pass to scanLineWidth() */
+    if (scrp->depth > 4)
+	BankFormat = &scrp->fbFormat;
+    else
+	BankFormat = xf86GetPixFormat(scrp, 1);	/* >not< scrp->depth! */
+
+    if (scrp->xInc <= 0)
+        scrp->xInc = 8;		/* Suitable for VGA and others */
+
+#define _VIRTUALX(x) ((((x) + scrp->xInc - 1) / scrp->xInc) * scrp->xInc)
+
+    /*
+     * Determine maxPitch if it wasn't given explicitly.  Note linePitches
+     * always takes precedence if is non-NULL.  In that case the minPitch and
+     * maxPitch values passed are ignored.
+     */
+    if (linePitches) {
+	minPitch = maxPitch = linePitches[0];
+	for (i = 1; linePitches[i] > 0; i++) {
+	    if (linePitches[i] > maxPitch)
+		maxPitch = linePitches[i];
+	    if (linePitches[i] < minPitch)
+		minPitch = linePitches[i];
+	}
+    }
+
+    /* Initial check of virtual size against other constraints */
+    scrp->virtualFrom = X_PROBED;
+    /*
+     * Initialise virtX and virtY if the values are fixed.
+     */
+    if (virtualY > 0) {
+	if (maxHeight > 0 && virtualY > maxHeight) {
+	    xf86DrvMsg(scrp->scrnIndex, X_ERROR,
+		       "Virtual height (%d) is too large for the hardware "
+		       "(max %d)\n", virtualY, maxHeight);
+	    return -1;
+	}
+
+	if (minHeight > 0 && virtualY < minHeight) {
+	    xf86DrvMsg(scrp->scrnIndex, X_ERROR,
+		       "Virtual height (%d) is too small for the hardware "
+		       "(min %d)\n", virtualY, minHeight);
+	    return -1;
+	}
+
+	virtualX = _VIRTUALX(virtualX);
+	if (linePitches != NULL) {
+	    for (i = 0; linePitches[i] != 0; i++) {
+		if ((linePitches[i] >= virtualX) &&
+		    (linePitches[i] ==
+		     scanLineWidth(virtualX, virtualY, linePitches[i],
+				   apertureSize, BankFormat, pitchInc))) {
+		    linePitch = linePitches[i];
+		    break;
+		}
+	    }
+	} else {
+	    linePitch = scanLineWidth(virtualX, virtualY, minPitch,
+				      apertureSize, BankFormat, pitchInc);
+	}
+
+	if ((linePitch < minPitch) || (linePitch > maxPitch)) {
+	    xf86DrvMsg(scrp->scrnIndex, X_ERROR,
+		       "Virtual width (%d) is too large for the hardware "
+		       "(max %d)\n", virtualX, maxPitch);
+	    return -1;
+	}
+
+	if (!xf86CheckModeSize(scrp, linePitch, virtualX, virtualY)) {
+	    xf86DrvMsg(scrp->scrnIndex, X_ERROR,
+		      "Virtual size (%dx%d) (pitch %d) exceeds video memory\n",
+		      virtualX, virtualY, linePitch);
+	    return -1;
+	}
+
+	virtX = virtualX;
+	virtY = virtualY;
+	scrp->virtualFrom = X_CONFIG;
+    } else if (!modeNames || !*modeNames) {
+	/* No virtual size given in the config, try to infer */
+	/* XXX this doesn't take m{in,ax}Pitch into account; oh well */
+	inferred_virtual = inferVirtualSize(scrp, availModes, &virtX, &virtY);
+	if (inferred_virtual)
+	    linePitch = scanLineWidth(virtX, virtY, minPitch, apertureSize,
+				      BankFormat, pitchInc);
+    }
+
+    /* Print clock ranges and scaled clocks */
+    xf86ShowClockRanges(scrp, clockRanges);
+
+    /*
+     * If scrp->modePool hasn't been setup yet, set it up now.  This allows the
+     * modes that the driver definitely can't use to be weeded out early.  Note
+     * that a modePool mode's prev field is used to hold a pointer to the
+     * member of the scrp->modes list for which a match was considered.
+     */
+    if (scrp->modePool == NULL) {
+	q = NULL;
+	for (p = availModes; p != NULL; p = p->next) {
+	    status = xf86InitialCheckModeForDriver(scrp, p, clockRanges,
+						   strategy, maxPitch,
+						   virtX, virtY);
+
+	    if (status == MODE_OK) {
+		status = xf86CheckModeForMonitor(p, scrp->monitor);
+	    }
+	    
+	    if (status == MODE_OK) {
+		new = xnfalloc(sizeof(DisplayModeRec));
+		*new = *p;
+		new->next = NULL;
+		if (!q) {
+		    scrp->modePool = new;
+		} else {
+		    q->next = new;
+		}
+		new->prev = NULL;
+		q = new;
+		q->name = xnfstrdup(p->name);
+	        q->status = MODE_OK;
+	    } else {
+		printModeRejectMessage(scrp->scrnIndex, p, status);
+	    }
+	}
+
+	if (scrp->modePool == NULL) {
+	    xf86DrvMsg(scrp->scrnIndex, X_WARNING, "Mode pool is empty\n");
+	    return 0;
+	}
+    } else {
+	for (p = scrp->modePool; p != NULL; p = p->next) {
+	    p->prev = NULL;
+	    p->status = MODE_OK;
+	}
+    }
+
+    /*
+     * Allocate one entry in scrp->modes for each named mode.
+     */
+    while (scrp->modes)
+	xf86DeleteMode(&scrp->modes, scrp->modes);
+    endp = &scrp->modes;
+    last = NULL;
+    if (modeNames != NULL) {
+	for (i = 0; modeNames[i] != NULL; i++) {
+	    userModes = TRUE;
+	    new = xnfcalloc(1, sizeof(DisplayModeRec));
+	    new->prev = last;
+	    new->type = M_T_USERDEF;
+	    new->name = xnfstrdup(modeNames[i]);
+	    if (new->prev)
+		new->prev->next = new;
+	    *endp = last = new;
+	    endp = &new->next;
+	}
+    }
+
+    /* Lookup each mode */
+#ifdef RANDR
+    if (!xf86Info.disableRandR	
+#ifdef PANORAMIX
+	&& noPanoramiXExtension
+#endif
+	)
+	validateAllDefaultModes = TRUE;
+#endif
+
+    for (p = scrp->modes; ; p = p->next) {
+	Bool repeat;
+
+	/*
+	 * If the supplied mode names don't produce a valid mode, scan through
+	 * unconsidered modePool members until one survives validation.  This
+	 * is done in decreasing order by mode pixel area.
+	 */
+
+	if (p == NULL) {
+	    if ((numModes > 0) && !validateAllDefaultModes)
+		break;
+
+	    validateAllDefaultModes = TRUE;
+	    r = NULL;
+	    modeSize = 0;
+	    for (q = scrp->modePool;  q != NULL;  q = q->next) {
+		if ((q->prev == NULL) && (q->status == MODE_OK)) {
+		    /*
+		     * Deal with the case where this mode wasn't considered
+		     * because of a builtin mode of the same name.
+		     */
+		    for (p = scrp->modes; p != NULL; p = p->next) {
+			if ((p->status != MODE_OK) &&
+			    !strcmp(p->name, q->name))
+			    break;
+		    }
+
+		    if (p != NULL)
+			q->prev = p;
+		    else {
+			/*
+			 * A quick check to not allow default modes with
+			 * horizontal timing parameters that CRTs may have
+			 * problems with.
+			 */
+			if (!scrp->monitor->reducedblanking &&
+			    (q->type & M_T_DEFAULT) &&
+			    ((double)q->HTotal / (double)q->HDisplay) < 1.15)
+			    continue;
+
+			if (modeSize < (q->HDisplay * q->VDisplay)) {
+			    r = q;
+			    modeSize = q->HDisplay * q->VDisplay;
+			}
+		    }
+		}
+	    }
+
+	    if (r == NULL)
+		break;
+
+	    p = xnfcalloc(1, sizeof(DisplayModeRec));
+	    p->prev = last;
+	    p->name = xnfstrdup(r->name);
+	    if (!userModes)
+		p->type = M_T_USERDEF;
+	    if (p->prev)
+		p->prev->next = p;
+	    *endp = last = p;
+	    endp = &p->next;
+	}
+
+	repeat = FALSE;
+    lookupNext:
+	if (repeat && ((status = p->status) != MODE_OK))
+	    printModeRejectMessage(scrp->scrnIndex, p, status);
+	saveType = p->type;
+	status = xf86LookupMode(scrp, p, clockRanges, strategy);
+	if (repeat && status == MODE_NOMODE)
+	    continue;
+	if (status != MODE_OK)
+	    printModeRejectMessage(scrp->scrnIndex, p, status);
+	if (status == MODE_ERROR) {
+	    ErrorF("xf86ValidateModes: "
+		   "unexpected result from xf86LookupMode()\n");
+	    return -1;
+	}
+	if (status != MODE_OK) {
+	    if (p->status == MODE_OK)
+		p->status = status;
+	    continue;
+	}
+	p->type |= saveType;
+	repeat = TRUE;
+
+	newLinePitch = linePitch;
+	newVirtX = virtX;
+	newVirtY = virtY;
+
+	/*
+	 * Don't let non-user defined modes increase the virtual size
+	 */
+	if (!(p->type & M_T_USERDEF) && (numModes > 0)) {
+	    if (p->HDisplay > virtX) {
+		p->status = MODE_VIRTUAL_X;
+		goto lookupNext;
+	    }
+	    if (p->VDisplay > virtY) {
+		p->status = MODE_VIRTUAL_Y;
+		goto lookupNext;
+	    }
+	}
+	/*
+	 * Adjust virtual width and height if the mode is too large for the
+	 * current values and if they are not fixed.
+	 */
+	if (virtualX <= 0 && p->HDisplay > newVirtX)
+	    newVirtX = _VIRTUALX(p->HDisplay);
+	if (virtualY <= 0 && p->VDisplay > newVirtY) {
+	    if (maxHeight > 0 && p->VDisplay > maxHeight) {
+		p->status = MODE_VIRTUAL_Y;	/* ? */
+		goto lookupNext;
+	    }
+	    newVirtY = p->VDisplay;
+	}
+
+	/*
+	 * If virtual resolution is to be increased, revalidate it.
+	 */
+	if ((virtX != newVirtX) || (virtY != newVirtY)) {
+	    if (linePitches != NULL) {
+		newLinePitch = -1;
+		for (i = 0; linePitches[i] != 0; i++) {
+		    if ((linePitches[i] >= newVirtX) &&
+			(linePitches[i] >= linePitch) &&
+			(linePitches[i] ==
+			 scanLineWidth(newVirtX, newVirtY, linePitches[i],
+				       apertureSize, BankFormat, pitchInc))) {
+			newLinePitch = linePitches[i];
+			break;
+		    }
+		}
+	    } else {
+		if (linePitch < minPitch)
+		    linePitch = minPitch;
+		newLinePitch = scanLineWidth(newVirtX, newVirtY, linePitch,
+					     apertureSize, BankFormat,
+					     pitchInc);
+	    }
+	    if ((newLinePitch < minPitch) || (newLinePitch > maxPitch)) {
+		p->status = MODE_BAD_WIDTH;
+		goto lookupNext;
+	    }
+
+	    /*
+	     * Check that the pixel area required by the new virtual height
+	     * and line pitch isn't too large.
+	     */
+	    if (!xf86CheckModeSize(scrp, newLinePitch, newVirtX, newVirtY)) {
+		p->status = MODE_MEM_VIRT;
+		goto lookupNext;
+	    }
+	}
+
+	if (scrp->ValidMode) {
+	    /*
+	     * Give the driver a final say, passing it the proposed virtual
+	     * geometry.
+	     */
+	    scrp->virtualX = newVirtX;
+	    scrp->virtualY = newVirtY;
+	    scrp->displayWidth = newLinePitch;
+	    p->status = (scrp->ValidMode)(scrp->scrnIndex, p, FALSE,
+					  MODECHECK_FINAL);
+
+	    if (p->status != MODE_OK) {
+	        goto lookupNext;
+	    }
+	}
+
+	/* Mode has passed all the tests */
+	virtX = newVirtX;
+	virtY = newVirtY;
+	linePitch = newLinePitch;
+	p->status = MODE_OK;
+	numModes++;
+    }
+
+    /*
+     * If we estimated the virtual size above, we may have filtered away all
+     * the modes that maximally match that size; scan again to find out and
+     * fix up if so.
+     */
+    if (inferred_virtual) {
+	int vx = 0, vy = 0;
+	for (p = scrp->modes; p; p = p->next) {
+	    if (p->HDisplay > vx && p->VDisplay > vy) {
+		vx = p->HDisplay;
+		vy = p->VDisplay;
+	    }
+	}
+	if (vx < virtX || vy < virtY) {
+	    const int types[] = {
+		M_T_BUILTIN | M_T_PREFERRED,
+		M_T_BUILTIN,
+		M_T_DRIVER | M_T_PREFERRED,
+		M_T_DRIVER,
+		0
+	    };
+	    const int ntypes = sizeof(types) / sizeof(int);
+	    int n;
+
+	    /* 
+	     * We did not find the estimated virtual size. So now we want to 
+	     * find the largest mode available, but we want to search in the
+	     * modes in the order of "types" listed above.
+	     */
+	    for (n = 0; n < ntypes; n++) {
+		int type = types[n];
+
+		vx = 0; vy = 0;
+		for (p = scrp->modes; p; p = p->next) {
+		    /* scan through the modes in the sort order above */
+		    if ((p->type & type) != type)
+			continue;
+		    if (p->HDisplay > vx && p->VDisplay > vy) {
+			vx = p->HDisplay;
+			vy = p->VDisplay;
+		    }
+		}
+		if (vx && vy)
+		    /* Found one */
+		    break;
+	    }
+	    xf86DrvMsg(scrp->scrnIndex, X_WARNING,
+		       "Shrinking virtual size estimate from %dx%d to %dx%d\n",
+		       virtX, virtY, vx, vy);
+	    virtX = _VIRTUALX(vx);
+	    virtY = vy;
+	    for (p = scrp->modes; p; p = p->next) {
+		if (numModes > 0) {
+		    if (p->HDisplay > virtX)
+			p->status = MODE_VIRTUAL_X;
+		    if (p->VDisplay > virtY)
+			p->status = MODE_VIRTUAL_Y;
+		    if (p->status != MODE_OK) {
+			numModes--;
+			printModeRejectMessage(scrp->scrnIndex, p, p->status);
+		    }
+		}
+	    }
+	    if (linePitches != NULL) {
+		for (i = 0; linePitches[i] != 0; i++) {
+		    if ((linePitches[i] >= virtX) &&
+			(linePitches[i] ==
+			scanLineWidth(virtX, virtY, linePitches[i],
+				      apertureSize, BankFormat, pitchInc))) {
+			linePitch = linePitches[i];
+			break;
+		    }
+		}
+	    } else {
+		linePitch = scanLineWidth(virtX, virtY, minPitch,
+					  apertureSize, BankFormat, pitchInc);
+	    }
+	}
+    }
+
+    /* Update the ScrnInfoRec parameters */
+    
+    scrp->virtualX = virtX;
+    scrp->virtualY = virtY;
+    scrp->displayWidth = linePitch;
+
+    if (numModes <= 0)
+	return 0;
+    
+    /* Make the mode list into a circular list by joining up the ends */
+    p = scrp->modes;
+    while (p->next != NULL)
+	p = p->next;
+    /* p is now the last mode on the list */
+    p->next = scrp->modes;
+    scrp->modes->prev = p;
+
+    if (minHeight > 0 && virtY < minHeight) {
+	xf86DrvMsg(scrp->scrnIndex, X_ERROR,
+		   "Virtual height (%d) is too small for the hardware "
+		   "(min %d)\n", virtY, minHeight);
+	return -1;
+    }
+
+    return numModes;
+}
+
+/*
+ * xf86DeleteMode
+ *
+ * This function removes a mode from a list of modes.
+ *
+ * There are different types of mode lists:
+ *
+ *  - singly linked linear lists, ending in NULL
+ *  - doubly linked linear lists, starting and ending in NULL
+ *  - doubly linked circular lists
+ *
+ */
+ 
+void
+xf86DeleteMode(DisplayModePtr *modeList, DisplayModePtr mode)
+{
+    /* Catch the easy/insane cases */
+    if (modeList == NULL || *modeList == NULL || mode == NULL)
+	return;
+
+    /* If the mode is at the start of the list, move the start of the list */
+    if (*modeList == mode)
+	*modeList = mode->next;
+
+    /* If mode is the only one on the list, set the list to NULL */
+    if ((mode == mode->prev) && (mode == mode->next)) {
+	*modeList = NULL;
+    } else {
+	if ((mode->prev != NULL) && (mode->prev->next == mode))
+	    mode->prev->next = mode->next;
+	if ((mode->next != NULL) && (mode->next->prev == mode))
+	    mode->next->prev = mode->prev;
+    }
+
+    free(mode->name);
+    free(mode);
+}
+
+/*
+ * xf86PruneDriverModes
+ *
+ * Remove modes from the driver's mode list which have been marked as
+ * invalid.
+ */
+
+void
+xf86PruneDriverModes(ScrnInfoPtr scrp)
+{
+    DisplayModePtr first, p, n;
+
+    p = scrp->modes;
+    if (p == NULL)
+	return;
+
+    do {
+	if (!(first = scrp->modes))
+	    return;
+	n = p->next;
+	if (p->status != MODE_OK) {
+	    xf86DeleteMode(&(scrp->modes), p);
+	}
+	p = n;
+    } while (p != NULL && p != first);
+
+    /* modePool is no longer needed, turf it */
+    while (scrp->modePool) {
+	/*
+	 * A modePool mode's prev field is used to hold a pointer to the
+	 * member of the scrp->modes list for which a match was considered.
+	 * Clear that pointer first, otherwise xf86DeleteMode might get 
+	 * confused 
+	 */
+	scrp->modePool->prev = NULL;
+	xf86DeleteMode(&scrp->modePool, scrp->modePool);
+    }
+}
+
+
+/*
+ * xf86SetCrtcForModes
+ *
+ * Goes through the screen's mode list, and initialises the Crtc
+ * parameters for each mode.  The initialisation includes adjustments
+ * for interlaced and double scan modes.
+ */
+void
+xf86SetCrtcForModes(ScrnInfoPtr scrp, int adjustFlags)
+{
+    DisplayModePtr p;
+
+    /*
+     * Store adjustFlags for use with the VidMode extension. There is an
+     * implicit assumption here that SetCrtcForModes is called once.
+     */
+    scrp->adjustFlags = adjustFlags;
+
+    p = scrp->modes;
+    if (p == NULL)
+	return;
+
+    do {
+	xf86SetModeCrtc(p, adjustFlags);
+	DebugF("%sMode %s: %d (%d) %d %d (%d) %d %d (%d) %d %d (%d) %d\n",
+	       (p->type & M_T_DEFAULT) ? "Default " : "",
+	       p->name, p->CrtcHDisplay, p->CrtcHBlankStart,
+	       p->CrtcHSyncStart, p->CrtcHSyncEnd, p->CrtcHBlankEnd,
+	       p->CrtcHTotal, p->CrtcVDisplay, p->CrtcVBlankStart,
+	       p->CrtcVSyncStart, p->CrtcVSyncEnd, p->CrtcVBlankEnd,
+	       p->CrtcVTotal);
+	p = p->next;
+    } while (p != NULL && p != scrp->modes);
+}
+
+void
+xf86PrintModes(ScrnInfoPtr scrp)
+{
+    DisplayModePtr p;
+    float hsync, refresh = 0;
+    const char *desc, *desc2, *prefix, *uprefix;
+
+    if (scrp == NULL)
+	return;
+
+    xf86DrvMsg(scrp->scrnIndex, scrp->virtualFrom, "Virtual size is %dx%d "
+	       "(pitch %d)\n", scrp->virtualX, scrp->virtualY,
+	       scrp->displayWidth);
+    
+    p = scrp->modes;
+    if (p == NULL)
+	return;
+
+    do {
+	desc = desc2 = "";
+	hsync = xf86ModeHSync(p);
+	refresh = xf86ModeVRefresh(p);
+	if (p->Flags & V_INTERLACE) {
+	    desc = " (I)";
+	}
+	if (p->Flags & V_DBLSCAN) {
+	    desc = " (D)";
+	}
+	if (p->VScan > 1) {
+	    desc2 = " (VScan)";
+	}
+	if (p->type & M_T_BUILTIN)
+	    prefix = "Built-in mode";
+	else if (p->type & M_T_DEFAULT)
+	    prefix = "Default mode";
+	else if (p->type & M_T_DRIVER)
+	    prefix = "Driver mode";
+	else
+	    prefix = "Mode";
+	if (p->type & M_T_USERDEF)
+	    uprefix = "*";
+	else
+	    uprefix = " ";
+	if (hsync == 0 || refresh == 0) {
+	    if (p->name)
+		xf86DrvMsg(scrp->scrnIndex, X_CONFIG,
+			   "%s%s \"%s\"\n", uprefix, prefix, p->name);
+	    else
+		xf86DrvMsg(scrp->scrnIndex, X_PROBED,
+			   "%s%s %dx%d (unnamed)\n",
+			   uprefix, prefix, p->HDisplay, p->VDisplay);
+	} else if (p->Clock == p->SynthClock) {
+	    xf86DrvMsg(scrp->scrnIndex, X_CONFIG,
+			"%s%s \"%s\": %.1f MHz, %.1f kHz, %.1f Hz%s%s\n",
+			uprefix, prefix, p->name, p->Clock / 1000.0,
+			hsync, refresh, desc, desc2);
+	} else {
+	    xf86DrvMsg(scrp->scrnIndex, X_CONFIG,
+			"%s%s \"%s\": %.1f MHz (scaled from %.1f MHz), "
+			"%.1f kHz, %.1f Hz%s%s\n",
+			uprefix, prefix, p->name, p->Clock / 1000.0,
+			p->SynthClock / 1000.0, hsync, refresh, desc, desc2);
+	}
+	if (hsync != 0 && refresh != 0)
+	    xf86PrintModeline(scrp->scrnIndex,p);
+	p = p->next;
+    } while (p != NULL && p != scrp->modes);
+}
diff --git a/xorg-server/hw/xfree86/common/xf86Opt.h b/xorg-server/hw/xfree86/common/xf86Opt.h
index 88392dc6d..b0fdaa6b6 100644
--- a/xorg-server/hw/xfree86/common/xf86Opt.h
+++ b/xorg-server/hw/xfree86/common/xf86Opt.h
@@ -72,7 +72,7 @@ typedef struct {
 
 extern _X_EXPORT int xf86SetIntOption(XF86OptionPtr optlist, const char *name, int deflt);
 extern _X_EXPORT double xf86SetRealOption(XF86OptionPtr optlist, const char *name, double deflt);
-extern _X_EXPORT char *xf86SetStrOption(XF86OptionPtr optlist, const char *name, char *deflt);
+extern _X_EXPORT char *xf86SetStrOption(XF86OptionPtr optlist, const char *name, const char *deflt);
 extern _X_EXPORT int xf86SetBoolOption(XF86OptionPtr list, const char *name, int deflt );
 extern _X_EXPORT double xf86SetPercentOption(XF86OptionPtr list, const char *name, double deflt );
 extern _X_EXPORT int xf86CheckIntOption(XF86OptionPtr optlist, const char *name, int deflt);
@@ -91,7 +91,7 @@ extern _X_EXPORT char *xf86OptionName(XF86OptionPtr opt);
 extern _X_EXPORT char *xf86OptionValue(XF86OptionPtr opt);
 extern _X_EXPORT void xf86OptionListReport(XF86OptionPtr parm);
 extern _X_EXPORT XF86OptionPtr xf86FindOption(XF86OptionPtr options, const char *name);
-extern _X_EXPORT char *xf86FindOptionValue(XF86OptionPtr options, const char *name);
+extern _X_EXPORT const char *xf86FindOptionValue(XF86OptionPtr options, const char *name);
 extern _X_EXPORT void xf86MarkOptionUsed(XF86OptionPtr option);
 extern _X_EXPORT void xf86MarkOptionUsedByName(XF86OptionPtr options, const char *name);
 extern _X_EXPORT Bool xf86CheckIfOptionUsed(XF86OptionPtr option);
diff --git a/xorg-server/hw/xfree86/common/xf86Option.c b/xorg-server/hw/xfree86/common/xf86Option.c
index 9c528782f..dc0a01899 100644
--- a/xorg-server/hw/xfree86/common/xf86Option.c
+++ b/xorg-server/hw/xfree86/common/xf86Option.c
@@ -187,7 +187,7 @@ LookupRealOption(XF86OptionPtr optlist, const char *name, double deflt,
 
 
 static char *
-LookupStrOption(XF86OptionPtr optlist, const char *name, char *deflt, Bool markUsed)
+LookupStrOption(XF86OptionPtr optlist, const char *name, const char *deflt, Bool markUsed)
 {
     OptionInfoRec o;
 
@@ -243,7 +243,7 @@ xf86SetRealOption(XF86OptionPtr optlist, const char *name, double deflt)
 
 
 char *
-xf86SetStrOption(XF86OptionPtr optlist, const char *name, char *deflt)
+xf86SetStrOption(XF86OptionPtr optlist, const char *name, const char *deflt)
 {
     return LookupStrOption(optlist, name, deflt, TRUE);
 }
@@ -306,7 +306,7 @@ XF86OptionPtr
 xf86ReplaceIntOption(XF86OptionPtr optlist, const char *name, const int val)
 {
     char tmp[16];
-    sprintf(tmp,"%i",val);
+    snprintf(tmp,sizeof(tmp),"%i",val);
     return xf86AddNewOption(optlist,name,tmp);
 }
 
@@ -314,7 +314,7 @@ XF86OptionPtr
 xf86ReplaceRealOption(XF86OptionPtr optlist, const char *name, const double val)
 {
     char tmp[32];
-    snprintf(tmp,32,"%f",val);
+    snprintf(tmp,sizeof(tmp),"%f",val);
     return xf86AddNewOption(optlist,name,tmp);
 }
 
@@ -328,7 +328,7 @@ XF86OptionPtr
 xf86ReplacePercentOption(XF86OptionPtr optlist, const char *name, const double val)
 {
     char tmp[16];
-    sprintf(tmp, "%lf%%", val);
+    snprintf(tmp, sizeof(tmp), "%lf%%", val);
     return xf86AddNewOption(optlist,name,tmp);
 }
 
@@ -416,7 +416,7 @@ xf86FindOption(XF86OptionPtr options, const char *name)
 }
 
 
-char *
+const char *
 xf86FindOptionValue(XF86OptionPtr options, const char *name)
 {
     return xf86findOptionValue(options, name);
diff --git a/xorg-server/hw/xfree86/common/xf86PM.c b/xorg-server/hw/xfree86/common/xf86PM.c
index 16b6bdc4a..47e0297d6 100644
--- a/xorg-server/hw/xfree86/common/xf86PM.c
+++ b/xorg-server/hw/xfree86/common/xf86PM.c
@@ -41,7 +41,7 @@ pmWait (*xf86PMConfirmEventToOs)(int fd,pmEvent event) = NULL;
 static Bool suspended = FALSE;
 
 static int
-eventName(pmEvent event, char **str)
+eventName(pmEvent event, const char **str)
 {
     switch(event) {
     case XF86_APM_SYS_STANDBY: *str="System Standby Request"; return 0;
@@ -179,7 +179,7 @@ xf86HandlePMEvents(int fd, pointer data)
     if ((n = xf86PMGetEventFromOs(fd,events,MAX_NO_EVENTS))) {
 	do {
 	    for (i = 0; i < n; i++) {
-		char *str = NULL;
+		const char *str = NULL;
 		int verb = eventName(events[i],&str);
 
 		xf86MsgVerb(X_INFO,verb,"PM Event received: %s\n",str);
diff --git a/xorg-server/hw/xfree86/common/xf86Priv.h b/xorg-server/hw/xfree86/common/xf86Priv.h
index 1fe3d7e0d..8c698591e 100644
--- a/xorg-server/hw/xfree86/common/xf86Priv.h
+++ b/xorg-server/hw/xfree86/common/xf86Priv.h
@@ -69,7 +69,7 @@ extern _X_EXPORT  Pix24Flags xf86Pix24;
 extern _X_EXPORT  rgb xf86Weight;
 extern _X_EXPORT  Bool xf86FlipPixels;
 extern _X_EXPORT  Gamma xf86Gamma;
-extern _X_EXPORT  char *xf86ServerName;
+extern _X_EXPORT  const char *xf86ServerName;
 
 /* Other parameters */
 
diff --git a/xorg-server/hw/xfree86/common/xf86ShowOpts.c b/xorg-server/hw/xfree86/common/xf86ShowOpts.c
deleted file mode 100644
index a8059168d..000000000
--- a/xorg-server/hw/xfree86/common/xf86ShowOpts.c
+++ /dev/null
@@ -1,130 +0,0 @@
-/* $XFree86: xc/programs/Xserver/hw/xfree86/common/xf86ShopwOpts.c,v 3.80 2003/10/08 14:58:27 dawes Exp $ */
-/*
- * Copyright 2000-2002 by Alan Hourihane, Flint Mountain, North Wales.
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of Alan Hourihane not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission.  Alan Hourihane makes no representations
- * about the suitability of this software for any purpose.  It is provided
- * "as is" without express or implied warranty.
- *
- * ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL ALAN HOURIHANE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
- * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- *
- * Author:  Marcus Schaefer, ms@suse.de
- *
- */
-
-#include <ctype.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <X11/X.h>
-#include <X11/Xmd.h>
-#include "os.h"
-#ifdef XFree86LOADER
-#include "loaderProcs.h"
-#endif
-#include "xf86.h"
-#include "xf86Config.h"
-#include "xf86_OSlib.h"
-#include "xf86Priv.h"
-/* #include "xf86PciData.h" */
-#define IN_XSERVER
-#include "xf86Parser.h"
-#include "xf86tokens.h"
-#include "Configint.h"
-#include "xf86DDC.h"
-#if defined(__sparc__) && !defined(__OpenBSD__)
-#include "xf86Bus.h"
-#include "xf86Sbus.h"
-#endif
-#include "globals.h"
-
-static const char* 
-optionTypeToSting(OptionValueType type)
-{
-    switch (type) {
-    case OPTV_NONE:
-        return "";
-    case OPTV_INTEGER:
-        return "<int>";
-    case OPTV_STRING:
-        return "<str>";
-    case OPTV_ANYSTR:
-        return "<str>";
-    case OPTV_REAL:
-        return "<real>";
-    case OPTV_BOOLEAN:
-        return "<bool>";
-    case OPTV_FREQ:
-        return "<freq>";
-    case OPTV_PERCENT:
-        return "<percent>";
-    default:
-        return "<undef>";
-    }
-}
-
-void DoShowOptions (void) {
-	int  i = 0;
-	char **vlist  = 0;
-	char *pSymbol = 0;
-	XF86ModuleData *initData = 0;
-	if (! (vlist = xf86DriverlistFromCompile())) {
-		ErrorF("Missing output drivers\n");
-		goto bail;
-	}
-	xf86LoadModules (vlist,0);
-	free(vlist);
-	for (i = 0; i < xf86NumDrivers; i++) {
-		if (xf86DriverList[i]->AvailableOptions) {
-			OptionInfoPtr pOption = (OptionInfoPtr)(*xf86DriverList[i]->AvailableOptions)(0,0);
-			if (! pOption) {
-				ErrorF ("(EE) Couldn't read option table for %s driver\n",
-					xf86DriverList[i]->driverName
-				);
-				continue;                                                       
-			}
-			XNFasprintf(&pSymbol, "%sModuleData",
-				    xf86DriverList[i]->driverName);
-			initData = LoaderSymbol (pSymbol);
-			if (initData) {
-				XF86ModuleVersionInfo *vers = initData->vers;
-				OptionInfoPtr p;
-				ErrorF ("Driver[%d]:%s[%s] {\n",
-					i,xf86DriverList[i]->driverName,vers->vendor
-				);
-				for (p = pOption; p->name != NULL; p++) {
-					const char *opttype = optionTypeToSting(p->type);
-					/* XXX: Why overallocate by 2 bytes?
-					 * Otherwise, this would be strdup()
-					 */
-					char *optname = malloc(strlen(p->name) + 2 + 1);
-					if (!optname) {
-						continue;                      
-					}
-					sprintf(optname, "%s", p->name);
-					ErrorF ("\t%s:%s\n", optname,opttype);
-				}
-				ErrorF ("}\n");
-			}
-		}
-	}
-	bail:
-	OsCleanup (TRUE);                             
-	AbortDDX (EXIT_ERR_DRIVERS);
-	fflush (stderr);                        
-	exit (0);
-}
diff --git a/xorg-server/hw/xfree86/common/xf86Xinput.c b/xorg-server/hw/xfree86/common/xf86Xinput.c
index 7feb48c1e..b9753f01d 100644
--- a/xorg-server/hw/xfree86/common/xf86Xinput.c
+++ b/xorg-server/hw/xfree86/common/xf86Xinput.c
@@ -460,10 +460,9 @@ HostOS(void)
 
     if (*host_os == '\0') {
         if (uname(&name) >= 0)
-            strcpy(host_os, name.sysname);
+            strlcpy(host_os, name.sysname, sizeof(host_os));
         else {
-            strncpy(host_os, "unknown", sizeof(host_os));
-            host_os[sizeof(host_os)-1] = '\0';
+            strlcpy(host_os, "unknown", sizeof(host_os));
         }
     }
     return host_os;
diff --git a/xorg-server/hw/xfree86/common/xf86pciBus.c b/xorg-server/hw/xfree86/common/xf86pciBus.c
index 87dc02512..b95b25359 100644
--- a/xorg-server/hw/xfree86/common/xf86pciBus.c
+++ b/xorg-server/hw/xfree86/common/xf86pciBus.c
@@ -82,16 +82,6 @@ static struct pci_slot_match xf86IsolateDevice = {
     PCI_MATCH_ANY, PCI_MATCH_ANY, PCI_MATCH_ANY, PCI_MATCH_ANY, 0
 };
 
-void
-xf86FormatPciBusNumber(int busnum, char *buffer)
-{
-    /* 'buffer' should be at least 8 characters long */
-    if (busnum < 256)
-	sprintf(buffer, "%d", busnum);
-    else
-	sprintf(buffer, "%d@%d", busnum & 0x00ff, busnum >> 8);
-}
-
 /*
  * xf86Bus.c interface
  */
@@ -1072,7 +1062,7 @@ videoPtrToDriverList(struct pci_device *dev,
     int i;
     /* Add more entries here if we ever return more than 4 drivers for
        any device */
-    char *driverList[5] = { NULL, NULL, NULL, NULL, NULL };
+    const char *driverList[5] = { NULL, NULL, NULL, NULL, NULL };
 
     switch (dev->vendor_id)
     {
@@ -1219,9 +1209,8 @@ matchDriverFromFiles (char** matches, uint16_t match_vendor, uint16_t match_chip
         /* A tiny bit of sanity checking. We should probably do better */
         if (strncmp(&(direntry->d_name[len-4]), ".ids", 4) == 0) {
             /* We need the full path name to open the file */
-            strncpy(path_name, PCI_TXT_IDS_PATH, 256);
-            strncat(path_name, "/", 1);
-            strncat(path_name, direntry->d_name, (256 - strlen(path_name) - 1));
+            snprintf(path_name, sizeof(path_name), "%s/%s",
+                     PCI_TXT_IDS_PATH, direntry->d_name);
             fp = fopen(path_name, "r");
             if (fp == NULL) {
                 xf86Msg(X_ERROR, "Could not open %s for reading. Exiting.\n", path_name);
@@ -1235,8 +1224,7 @@ matchDriverFromFiles (char** matches, uint16_t match_vendor, uint16_t match_chip
 #endif /* __GLIBC __ */
                 xchomp(line);
                 if (isdigit(line[0])) {
-                    strncpy(vendor_str, line, 4);
-                    vendor_str[4] = '\0';
+                    strlcpy(vendor_str, line, sizeof(vendor_str));
                     vendor = (int)strtol(vendor_str, NULL, 16);
                     if ((strlen(&line[4])) == 0) {
                         chip_str[0] = '\0';
@@ -1248,8 +1236,7 @@ matchDriverFromFiles (char** matches, uint16_t match_vendor, uint16_t match_chip
                             chip = -1;
                         } else {
                             /* Ok, it's a real ID */
-                            strncpy(chip_str, &line[4], 4);
-                            chip_str[4] = '\0';
+                            strlcpy(chip_str, &line[4], sizeof(chip_str));
                             chip = (int)strtol(chip_str, NULL, 16);
                         }
                     }
@@ -1349,7 +1336,12 @@ xf86PciConfigureNewDev(void *busData, struct pci_device *pVideo,
 
     pVideo = (struct pci_device *) busData;
 
-    xf86FormatPciBusNumber(pVideo->bus, busnum);
+    if (pVideo->bus < 256)
+	snprintf(busnum, sizeof(busnum), "%d", pVideo->bus);
+    else
+	snprintf(busnum, sizeof(busnum), "%d@%d",
+		 pVideo->bus & 0x00ff, pVideo->bus >> 8);
+
     XNFasprintf(&GDev->busID, "PCI:%s:%d:%d",
 		busnum, pVideo->dev, pVideo->func);
 
diff --git a/xorg-server/hw/xfree86/common/xf86sbusBus.c b/xorg-server/hw/xfree86/common/xf86sbusBus.c
index 181c6ab00..b7bb913fe 100644
--- a/xorg-server/hw/xfree86/common/xf86sbusBus.c
+++ b/xorg-server/hw/xfree86/common/xf86sbusBus.c
@@ -88,7 +88,7 @@ xf86SbusProbe(void)
     xf86SbusInfo = malloc(sizeof(psdp));
     *xf86SbusInfo = NULL;
     for (i = 0; i < 32; i++) {
-	sprintf(fbDevName, "/dev/fb%d", i);
+	snprintf(fbDevName, sizeof(fbDevName), "/dev/fb%d", i);
 	CheckSbusDevice(fbDevName, i);
     }
     if (sparcPromInit() >= 0) {
diff --git a/xorg-server/hw/xfree86/ddc/xf86DDC.h b/xorg-server/hw/xfree86/ddc/xf86DDC.h
index af3ba06a5..16a8641c6 100644
--- a/xorg-server/hw/xfree86/ddc/xf86DDC.h
+++ b/xorg-server/hw/xfree86/ddc/xf86DDC.h
@@ -100,11 +100,6 @@ typedef enum {
     DDC_QUIRK_DVI_SINGLE_LINK = 1 << 8,
 } ddc_quirk_t;
 
-DisplayModePtr xf86DDCGetModes(int scrnIndex, xf86MonPtr DDC);
-
-extern Bool
-xf86MonitorIsHDMI(xf86MonPtr mon);
-
 typedef void (* handle_detailed_fn)(struct detailed_monitor_section *,void *);
 
 void xf86ForEachDetailedBlock(xf86MonPtr mon,
diff --git a/xorg-server/hw/xfree86/doc/ddxDesign.xml b/xorg-server/hw/xfree86/doc/ddxDesign.xml
index c406cd744..ca5efc9be 100644
--- a/xorg-server/hw/xfree86/doc/ddxDesign.xml
+++ b/xorg-server/hw/xfree86/doc/ddxDesign.xml
@@ -34,7 +34,7 @@
 
     <pubdate>&xserver.reldate;</pubdate>
     <releaseinfo>X Version 11, Release &fullrelvers;</releaseinfo>
-    <releaseinfo>Xorg server version &xserver.version;</releaseinfo>
+    <releaseinfo>X Server Version &xserver.version;</releaseinfo>
 
   </articleinfo>
 
@@ -3187,7 +3187,7 @@ would not need to use these directly.
 
     <blockquote><para>
 	<programlisting>
-    char *xf86FindOptionValue(XF86OptionPtr options, const char *name);
+    const char *xf86FindOptionValue(XF86OptionPtr options, const char *name);
 	</programlisting>
 	<blockquote><para>
       Takes a list of options and an option name, and returns the value
diff --git a/xorg-server/hw/xfree86/fbdevhw/fbdevhw.c b/xorg-server/hw/xfree86/fbdevhw/fbdevhw.c
index 30a2a9133..d7b4d3c20 100644
--- a/xorg-server/hw/xfree86/fbdevhw/fbdevhw.c
+++ b/xorg-server/hw/xfree86/fbdevhw/fbdevhw.c
@@ -265,20 +265,20 @@ fbdev_open_pci(struct pci_device * pPci, char **namep)
     int	fd, i;
 
     for (i = 0; i < 8; i++) {
-	sprintf(filename, 
+	snprintf(filename, sizeof(filename),
 		"/sys/bus/pci/devices/%04x:%02x:%02x.%d/graphics/fb%d",
 		pPci->domain, pPci->bus, pPci->dev, pPci->func, i);
 
 	fd = open(filename, O_RDONLY, 0);
         if (fd < 0) {
-            sprintf(filename,
+            snprintf(filename, sizeof(filename),
                     "/sys/bus/pci/devices/%04x:%02x:%02x.%d/graphics:fb%d",
                     pPci->domain, pPci->bus, pPci->dev, pPci->func, i);
             fd = open(filename, O_RDONLY, 0);
         }
 	if (fd >= 0) {
 	    close(fd);
-	    sprintf(filename, "/dev/fb%d", i);
+	    snprintf(filename, sizeof(filename), "/dev/fb%d", i);
 
 	    fd = open(filename, O_RDWR, 0);
 	    if (fd != -1) {
diff --git a/xorg-server/hw/xfree86/i2c/msp3430.c b/xorg-server/hw/xfree86/i2c/msp3430.c
index b58c3f09c..df8adc435 100644
--- a/xorg-server/hw/xfree86/i2c/msp3430.c
+++ b/xorg-server/hw/xfree86/i2c/msp3430.c
@@ -1,726 +1,727 @@
-#ifdef HAVE_XORG_CONFIG_H

-#include <xorg-config.h>

-#endif

-

-#include <string.h>

-#include <unistd.h>

-

-#include "xf86.h"

-#include "xf86i2c.h"

-#include "msp3430.h"

-#include "i2c_def.h"

-

-#define CONTROL         0x00

-#define WR_DEM          0x10

-#define RD_DEM          0x11

-#define WR_DSP          0x12

-#define RD_DSP          0x13

-

-

-void InitMSP34xxG(MSP3430Ptr m);

-void InitMSP34x5D(MSP3430Ptr m);

-void CheckModeMSP34x5D(MSP3430Ptr m);

-char *MSP_getProductName (CARD16 product_id);

-void mpause(int milliseconds);

-

-#define __MSPDEBUG__	0

-

-#if __MSPDEBUG__ > 3

-

-void MSPBeep(MSP3430Ptr m, CARD8 freq);

-#define __MSPBEEP MSPBeep(m,0x14);

-

-#else

-

-#define __MSPBEEP 

-#endif

-

-static void SetMSP3430Control(MSP3430Ptr m, CARD8 RegAddress, CARD8 RegValueHigh, CARD8 RegValueLow)

-{

-   I2CByte data[3];

-   

-   data[0]=RegAddress;

-   data[1]=RegValueHigh;

-   data[2]=RegValueLow;

-   

-   I2C_WriteRead(&(m->d),data,3,NULL,0);

-}

-

-static void SetMSP3430Data(MSP3430Ptr m, CARD8 RegAddress, CARD8 RegSubAddressHigh, CARD8 RegSubAddressLow, 

-     CARD8 RegValueHigh, CARD8 RegValueLow)

-{

-   I2CByte data[5];

-#ifdef MSP_DEBUG

-   if(!m->registers_present[RegSubAddressLow]){

-   	xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_ERROR, "Attempt to access non-existent register in MSP34xxX: 0x%02x 0x%02x 0x%02x <- 0x%02x 0x%02x\n",

-		RegAddress, RegSubAddressHigh, RegSubAddressLow, RegValueHigh, RegValueLow);

-   	}

-#endif

-   

-   data[0] = RegAddress;

-   data[1] = RegSubAddressHigh;

-   data[2] = RegSubAddressLow;

-   data[3] = RegValueHigh;

-   data[4] = RegValueLow;

-   

-   I2C_WriteRead(&(m->d),data,5,NULL,0);

-}

-

-static void GetMSP3430Data(MSP3430Ptr m, CARD8 RegAddress, CARD8 RegSubAddressHigh, CARD8 RegSubAddressLow,

-            CARD8 *RegValueHigh, CARD8 *RegValueLow)

-{

-   I2CByte  send[3];

-   I2CByte  receive[2];

-   

-   send[0] = RegAddress;

-   send[1] = RegSubAddressHigh;

-   send[2] = RegSubAddressLow;

-   

-   I2C_WriteRead(&(m->d), send, 3, receive, 2);

-   

-   *RegValueHigh = receive[0];

-   *RegValueLow = receive[1];

-}

-

-#if __MSPDEBUG__ > 2

-static void MSP3430DumpStatus(MSP3430Ptr m)

-{

-CARD8 status_hi, status_lo;

-CARD8 subaddr, data[2];

-

-GetMSP3430Data(m, RD_DEM, 0x02, 0x00, &status_hi, &status_lo);

-xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "MSP34xx: SAP(8)=%d mono/NICAM(7)=%d stereo=%d %s O_1=%d O_0=%d 2nd car=%d 1st car=%d\n",

-		status_hi & 1, (status_lo>>7) & 1, (status_lo>>6)&1, 

-		(status_lo>>5)? ( (status_hi>>1)&1? "bad NICAM reception" : "NICAM" ) : 

-		                ((status_hi>>1)&1 ? "bogus" : "ANALOG FM/AM") , 

-		(status_lo>>4)&1, (status_lo>>3)&1,!( (status_lo>>2)&1), !((status_lo>>1)&1));

-

-GetMSP3430Data(m, RD_DEM, 0x00, 0x7E, &status_hi, &status_lo);

-xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "MSP34xx: standard result=0x%02x%02x\n",

-		status_hi, status_lo);

-subaddr=0x0;

-I2C_WriteRead(&(m->d), &subaddr, 1, data, 2);

-xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "MSP34xx: control=0x%02x%02x\n",

-		data[1], data[0]);

-}

-#endif

-

-/* wrapper */

-void InitMSP3430(MSP3430Ptr m)

-{

-  #if __MSPDEBUG__ > 1

-  xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_INFO,"InitMSP3430(m->connector=%d, m->standard=%d, m->chip_family=%d)\n",

-  		m->connector, m->standard, m->chip_family);

-  #endif

-	switch (m->chip_family) {

-		case MSPFAMILY_34x0G:

-			InitMSP34xxG(m);

-			break;

-		case MSPFAMILY_34x5G:

-			InitMSP34xxG(m);

-			break;

-		case MSPFAMILY_34x5D:

-			InitMSP34x5D(m);

-			break;

-	}

-}

-

-/*-----------------------------------------------------------------

-| common functions for all MSP34xx chips 

-|----------------------------------------------------------------*/

-

-MSP3430Ptr DetectMSP3430(I2CBusPtr b, I2CSlaveAddr addr)

-{

-   MSP3430Ptr m;

-   I2CByte a;

-   CARD8 hardware_version, major_revision, product_code, rom_version;

-   Bool supported;

-   

-   m = calloc(1,sizeof(MSP3430Rec));

-   if(m == NULL)return NULL;

-   m->d.DevName = strdup("MSP34xx");

-   m->d.SlaveAddr = addr;

-   m->d.pI2CBus = b;

-   m->d.NextDev = NULL;

-   m->d.StartTimeout = b->StartTimeout;

-   m->d.BitTimeout = b->BitTimeout;

-   m->d.AcknTimeout = b->AcknTimeout;

-   m->d.ByteTimeout = b->ByteTimeout;

-   

-   if(!I2C_WriteRead(&(m->d), NULL, 0, &a, 1))

-   {

-       free(m->d.DevName);

-       free(m);

-	return NULL;

-    }

-

-

-	m->standard=MSP3430_NTSC;

-	m->connector=MSP3430_CONNECTOR_1;

-	m->mode=MSPMODE_STEREO_A;	/*stereo or chanel A if avail. */

-    	m->c_format=MSPFORMAT_UNKNOWN;

-    	m->c_standard=MSPSTANDARD_UNKNOWN;

-    	m->c_matrix=m->c_fmmatrix=m->c_source=0;

-	m->volume=0;

-	m->recheck=FALSE;

-

-   GetMSP3430Data(m, RD_DSP, 0x00, 0x1E, &hardware_version, &major_revision);

-   GetMSP3430Data(m, RD_DSP, 0x00, 0x1F, &product_code, &rom_version);

-   m->hardware_version=hardware_version;

-   m->major_revision=major_revision;

-   m->product_code=product_code;

-   m->rom_version=rom_version;

-

-   m->chip_id=((major_revision << 8) | product_code);

-   

-   supported=FALSE;

-   switch (major_revision) {

-   case 4:	/* 34xxD */

-      switch (product_code) {

-	  case 0x05: /* 3405D */

-	  case 0x0A: /* 3410D */

-	  case 0x0F: /* 3415D */

-	  	m->chip_family=MSPFAMILY_34x5D;

-		m->recheck=TRUE;

-		supported=TRUE;

-		break;

-      default:

-	  	m->chip_family=MSPFAMILY_34x0D;

-      }

-	  break;

-   case 7:	/* 34xxG */

-   	switch(product_code){

-		case 0x00:

-		case 0x0A:

-		case 0x1E:

-		case 0x28:

-		case 0x32:

-		  	m->chip_family=MSPFAMILY_34x0G;

-			supported=TRUE;

-			break;

-		case 0x0f:

-		case 0x19:

-		case 0x2d:

-		case 0x37:

-		case 0x41:

-		  	m->chip_family=MSPFAMILY_34x5G;

-			supported=TRUE;

-			#ifdef MSP_DEBUG

-			memset(m->registers_present, 0, 256);

-			#define A(num) m->registers_present[(num)]=1;

-			#define B(num1, num2) memset(&(m->registers_present[num1]), 1, num2-num1);

-			A(0x20)

-			A(0x30)

-			A(0x40)

-			A(0x00)

-			B(0x01, 0x08)

-			B(0x0B, 0x0E)

-			A(0x10)

-			B(0x12,0x14)

-			A(0x16)

-			A(0x29)

-			#undef B

-			#undef A

-			#endif

-			break;

-		default:

-		  	m->chip_family=MSPFAMILY_UNKNOWN;

-		}

-		break;

-   default:

-	  	m->chip_family=MSPFAMILY_UNKNOWN;

-   }

-   

-	xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "Found %s%s, rom version 0x%02x, chip_id=0x%04x\n",

-		MSP_getProductName(m->chip_id), supported?"":" (unsupported)", rom_version, m->chip_id);

-

-	if (!supported) {

-            free(m->d.DevName);

-            free(m);

-            return NULL;

-	}

-   if(!I2CDevInit(&(m->d)))

-   {

-       free(m->d.DevName);

-       free(m);

-       return NULL;

-   }

-

-   return m;  

-}

-

-void ResetMSP3430(MSP3430Ptr m)

-{

-    /* Reset the MSP3430 */

-    SetMSP3430Control(m, 0x00, 0x80, 0x00);

-    /* Set it back to normal operation */

-    SetMSP3430Control(m, 0x00, 0x00, 0x00);

-

-    m->c_format=MSPFORMAT_UNKNOWN;

-    m->c_standard=MSPSTANDARD_UNKNOWN;

-    m->c_matrix=m->c_fmmatrix=m->c_source=0;

-	m->volume=0;

-}   

-

-void MSP3430SetVolume (MSP3430Ptr m, CARD8 value)

-{

-    CARD8 result;

-#if 0

-    CARD8 old_volume;

-    GetMSP3430Data(m, RD_DSP, 0x00, 0x00, &old_volume, &result);   

-    xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "MSP3430 result 0x%02x\n", result);

-#endif

-    /* save an extra Get call */

-    result=0;

-

-    SetMSP3430Data(m, WR_DSP, 0x00, 0x00, value, result);

-

-    SetMSP3430Data(m, WR_DSP, 0x00, 0x07, value, 0);

-    m->volume=value;

-

-#if __MSPDEBUG__ > 2

-    MSP3430DumpStatus(m); 

-    __MSPBEEP

-    GetMSP3430Data(m, RD_DSP, 0x00, 0x00, &old_volume, &result);

-    xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "MSP3430 volume 0x%02x\n",value);

-#endif

-}

-

-

-void MSP3430SetSAP (MSP3430Ptr m, int mode)

-{

-	xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "Put actual code to change SAP here\n");

-

-      SetMSP3430Data(m, WR_DSP, 0x00, 0x08, mode & 0xff, 0x20); 

-}

-

-

-#if 0

-void MSP3430SetSource(MSP3430Ptr m, CARD8 value)

-{

-    /* Write to DSP, register 0x0008, (loudspeaker channel source/matrix) */

-    /* This sets the source to the TV tuner, for stereo operation */

-    SetMSP3430Data(m, WR_DSP, 0x00, 0x08, value, 0x20);

-}

-#endif

-

-

-char *MSP_getProductName (CARD16 product_id)

-{

-	switch (product_id) {

-		case 0x0400: return "MSP3400D";

-		case 0x040a: return "MSP3410D";

-		case 0x0405: return "MSP3405D";

-		case 0x040f: return "MSP3415D";

-		case 0x0700: return "MSP3400G";

-		case 0x070a: return "MSP3410G";

-		case 0x071e: return "MSP3430G";

-		case 0x0728: return "MSP3440G";

-		case 0x0732: return "MSP3450G";

-		case 0x070f: return "MSP3415G";

-		case 0x0719: return "MSP3425G";

-		case 0x072d: return "MSP3445G";

-		case 0x0737: return "MSP3455G";

-		case 0x0741: return "MSP3465G";

-	}

-	return "MSP - unknown type";

-}

-

-#if __MSPDEBUG__ > 2

-/*puts beep in MSP output

-    freq = 0x01 - 16Hz ... 0x40 - 1kHz ... 0xff - 4kHz  

-*/

-void MSPBeep(MSP3430Ptr m, CARD8 freq) {

-    SetMSP3430Data (m, WR_DSP, 0x00, freq, 0x7f, 0x40);

-    mpause(100);

-    SetMSP3430Data (m, WR_DSP, 0x00, 0x14, 0x00, 0x00);

-}

-#endif

-

-void mpause(int milliseconds) {

-    int i,m;

-    m=milliseconds/20;

-    for (i=0;i<m;i++) usleep(20000);

-}

-

-/*-----------------------------------------------------------------

-| specific functions for all MSP34xxG chips 

-|----------------------------------------------------------------*/

-

-void InitMSP34xxG(MSP3430Ptr m)

-{

-

-  #if __MSPDEBUG__ > 1

-  xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_INFO,"InitMSP34xxG(m->connector=%d, m->standard=%d, m->chip_family=%d)\n",

-  		m->connector, m->standard, m->chip_family);

-  #endif

-   /* Reset MSP3430 */

-   SetMSP3430Control(m, 0x00, 0x80, 0x00);

-   /* Set it back to normal operation */

-   SetMSP3430Control(m, 0x00, 0x00, 0x00);

-   

-   /*set MODUS register */

-   /* bits: 0 - automatic sound detection */

-   /*       1 - enable STATUS change */

-   /*       12 - detect 6.5 Mhz carrier as D/K1, D/K2 or D/K NICAM  (does not seem to work ) */

-   /*       13 - detect 4.5 Mhz carrier as BTSC */ 

-   if ( (m->standard & 0xff) == MSP3430_PAL )

-   {

-      SetMSP3430Data(m, WR_DEM, 0x00, 0x30, 0x30, 0x03|0x08);    /* make O_ pins tristate */

-      /* PAL standard */

-      SetMSP3430Data(m, WR_DEM, 0x00, 0x20, 0x00, 0x01); /* possibly wrong */

-   } else {

-      SetMSP3430Data(m, WR_DEM, 0x00, 0x30, 0x20, 0x03|0x08);

-      /* standard selection is M-BTSC-Stereo */

-      SetMSP3430Data(m, WR_DEM, 0x00, 0x20, 0x00, 0x20); 

-   }

-   

-   switch(m->connector){

-         case MSP3430_CONNECTOR_1:

-	        SetMSP3430Data(m, WR_DSP, 0x00, 0x08, 0x03, 0x20);

-	        break;

-	 case MSP3430_CONNECTOR_2:

-		/* this has not been checked yet.. could be bogus */

-    		/* SCART Input Prescale: 0 dB gain */

-		SetMSP3430Data(m, WR_DSP, 0x00, 0x0d, 0x19, 0x00);

-    		SetMSP3430Data(m, WR_DSP, 0x00, 0x08, 0x02, 0x20);   	

-		break;

-	case MSP3430_CONNECTOR_3:

-	default:

-    		/* SCART Input Prescale: 0 dB gain */

-		SetMSP3430Data(m, WR_DSP, 0x00, 0x0d, 0x19, 0x00);

-		

-    		SetMSP3430Data(m, WR_DSP, 0x00, 0x08, 0x02, 0x20);

-    		break;

-	}

-	      

-    switch(m->standard){

-        case MSP3430_PAL:

-     		SetMSP3430Data(m, WR_DSP, 0x00, 0x0e, 0x24, 0x03);

-     		SetMSP3430Data(m, WR_DSP, 0x00, 0x10, 0x00, 0x5a);

-                SetMSP3430Data(m, WR_DEM, 0x00, 0x20, 0x00, 0x03);

-                /* Set volume to FAST_MUTE. */

-     	        SetMSP3430Data(m, WR_DSP, 0x00, 0x00, 0xFF, 0x00);

-	        break;

-        case MSP3430_PAL_DK1:

-     		SetMSP3430Data(m, WR_DSP, 0x00, 0x0e, 0x24, 0x03);

-     		SetMSP3430Data(m, WR_DSP, 0x00, 0x10, 0x00, 0x5a);

-		SetMSP3430Data(m, WR_DEM, 0x00, 0x20, 0x00, 0x04);

-                /* Set volume to FAST_MUTE. */

-     	        SetMSP3430Data(m, WR_DSP, 0x00, 0x00, 0xFF, 0x00);

-		break;

-	case MSP3430_SECAM: /* is this right ? */

-        case MSP3430_NTSC:         

-                /* Write to DSP, register 0x000E, (prescale FM/FM matrix) */

-                SetMSP3430Data(m, WR_DSP, 0x00, 0x0e, 0x24, 0x03);

-

-                /* Set volume to FAST_MUTE. */

-                SetMSP3430Data(m, WR_DSP, 0x00, 0x00, 0xFF, 0x00);

-		break;

-	}

-

-}

-

-/*-----------------------------------------------------------------

-| specific functions for all MSP34x5D chips 

-|----------------------------------------------------------------*/

-

-void InitMSP34x5D(MSP3430Ptr m)

-{

-int count;

-CARD8 high,low;

-CARD16 result,standard;

-CARD16 peak;

-

-

-if (m->c_format==MSPFORMAT_UNKNOWN) ResetMSP3430(m);

-else {

-    /*mute volume*/

-    SetMSP3430Data (m, WR_DSP, 0x00, 0x00, 0x00, 0x00);

-}

-

-

-

-    switch(m->connector){

-	case MSP3430_CONNECTOR_2:

-	case MSP3430_CONNECTOR_3:

-	    if (m->c_format!=MSPFORMAT_SCART) {

-    		/* SCART Input Prescale: 0 dB gain */

-			SetMSP3430Data (m, WR_DSP, 0x00, 0x0d, 0x19, 0x00);

-			/* this has not been checked yet.. could be bogus */

-			m->c_format=MSPFORMAT_SCART;	/*stereo*/

-		}

-	    break;

-	case MSP3430_CONNECTOR_1:

-	default:

-	

-	    switch ( m->standard & 0x00ff ) {

-		case MSP3430_PAL:

-			switch( m->standard ) {

-			case MSP3430_PAL_DK1:

-			    standard=MSPSTANDARD_FM_DK1;

-			    break;

-/*			case MSP3430_PAL_DK2:

-			    standard=MSPSTANDARD_FM_DK2;

-			    break;

-			case MSP3430_PAL_BG:

-			may be FM stereo (Germany) or FM NICAM (Scandinavia,spain)

-			    standard=MSPSTANDARD_AUTO;

-			    break;

-*/

-			default:

-			    standard=MSPSTANDARD_AUTO;

-			}

-		    break;

-		case MSP3430_SECAM:

-		    standard=MSPSTANDARD_AUTO;

-		case MSP3430_NTSC:

-			    /* Only MSP34x5 supported format - Korean NTSC-M*/

-			 standard=MSPSTANDARD_FM_M;

-		default:

-		    standard=MSPSTANDARD_AUTO;

-		}

-		

-	    /*no NICAM support in MSP3410D - force to autodetect*/

-	    if ((m->chip_id==0x405) && (standard>=MSPSTANDARD_NICAM_BG))

-    		standard=MSPSTANDARD_AUTO;

-		    

-	    if (m->c_standard != standard) {

-

-   	        SetMSP3430Data (m, WR_DEM, 0x00, 0x20, standard>>8, standard & 0xFF);

-	        if (standard==MSPSTANDARD_AUTO) {

-			    count = 50; /* time shouldn't exceed 1s, just in case */

-			    do {

-     		        usleep(20000);

-     		        GetMSP3430Data (m, RD_DEM, 0x00, 0x7e, &high, &low);

-			        result = ( high << 8 ) | low;

-     		        --count;

-	    	    } while( result > 0x07ff && count > 0 );

-		    

-		    	if ((result > MSPSTANDARD_AUTO))

-					standard=result;

-		    	else standard=MSPSTANDARD_UNKNOWN;

-#if __MSPDEBUG__ > 1

-				xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_INFO,"Detected audio standard: %d\n",result);

-#endif		    	

-		    	/* result = MSPSTANDARD_NICAM_L can be one of:

-		    	SECAM_L - MSPSTANDARD_NICAM_L

-		    	D/K1 - MSPSTANDARD_FM_DK1

-		    	D/K2 - MSPSTANDARD_FM_DK2

-		    	D/K-NICAM - MSPSTANDARD_NICAM_DK*/

-		    	if( standard == MSPSTANDARD_NICAM_L ) {

-		        	if ((m->standard & 0x00ff)==MSP3430_PAL) {

-			    		/* force PAL D/K  */

-			    		standard=MSPSTANDARD_FM_DK1;

-		            	SetMSP3430Data (m, WR_DEM, 0x00, 0x20, standard>>8, standard & 0xFF);

-#if __MSPDEBUG__ > 1

-			        	xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_INFO, "Detected 6.5MHz carrier - forced to D/K1 !!!\n" );

-#endif

-					}

-		    	}

-			}

-			m->c_standard=standard;

-	    } /*end - standard changed*/

-	    else {

-			if (standard<MSPSTANDARD_NICAM_BG) {

-    		    /* get old value of ident. mode register*/

-		    	GetMSP3430Data (m, RD_DSP, 0x00, 0x15, &high, &low);

-    		    /* reset Ident-Filter */

-    		    SetMSP3430Data (m, WR_DSP, 0x00, 0x14, 0x00, 0x3F);

-		    	/* put back old value to ident. mode register*/

-    		    SetMSP3430Data (m, WR_DSP, 0x00, 0x14, 0x00, low);

-			}

-	    }

-

-	    if (standard<=MSPSTANDARD_AUTO) {

-    	   	m->c_format=MSPFORMAT_1xFM;

-	    }

-	    else if (standard<MSPSTANDARD_NICAM_BG) {

-			/* set FM prescale */

-			SetMSP3430Data (m, WR_DSP, 0x00, 0x0e, 0x30, 0);

-			/* set FM deemphasis*/

-			SetMSP3430Data (m, WR_DSP, 0x00, 0x0f, ((standard==MSPSTANDARD_FM_M)?0:1), 0);

-		    	

-			/* check if FM2 carrier is present */

-			/*turn off FM DC Notch*/

-			SetMSP3430Data (m, WR_DSP, 0x00, 0x17, 0x00, 0x3f);

-			/*matrix source for Quasi-Peak Detector - stereo: ch2->L ch1->R*/

-			SetMSP3430Data (m, WR_DSP, 0x00, 0x0c, 0x00, 0x20);

-			

-			mpause(250);

-   		    GetMSP3430Data (m, RD_DSP, 0x00, 0x1A, &high, &low);

-			peak = (high << 8) | low;

-#if __MSPDEBUG__ > 1

-			xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_INFO,"Second carrier Quasi-Peak detection: %d\n",peak);

-#endif	    	

-			/*turn on FM DC Notch*/

-			SetMSP3430Data (m, WR_DSP, 0x00, 0x17, 0x00, 0x00);

-	    	

-			if (peak<5) {

-	    	    /* if second carrier not detected - only mono from first carrier*/

-	    	    m->c_format=MSPFORMAT_1xFM;

-			}

-			else {

-	    	    m->c_format=MSPFORMAT_2xFM;

-    	   	    /*start of FM identification process - FM_WAIT

-	    	    wait at least 0.5s - used 1s - gives beter resolution*/

-    	   	    mpause(1000);

-			}

-	    }

-	    else {

-			if (standard==MSPSTANDARD_NICAM_L) {

-	    	    m->c_format=MSPFORMAT_NICAM_AM;

-		    	/* set AM prescale */

-		    	SetMSP3430Data (m, WR_DSP, 0x00, 0x0e, 0x7C, 0);

-			}

-			else {

-	    	    m->c_format=MSPFORMAT_NICAM_FM;

-		    	/* set FM prescale */

-			    SetMSP3430Data (m, WR_DSP, 0x00, 0x0e, 0x30, 0);

-			}

-			/* set FM deemphasis*/

-			SetMSP3430Data (m, WR_DSP, 0x00, 0x0f, 0x00, 0);

-			/* set NICAM prescale to 0dB */

-			SetMSP3430Data (m, WR_DSP, 0x00, 0x10, 0x20, 0);

-	    }

-	    

-	    break;

-	} /*end - case conector*/

-

-    CheckModeMSP34x5D(m);

-    

-    /* Set volume to FAST_MUTE. */

-    /*SetMSP3430Data(m, WR_DSP, 0x00, 0x00, 0xFF, 0x00);*/

-    /*set volume*/

-	MSP3430SetVolume(m,m->volume);

-    

-    __MSPBEEP

-

-

-} /* EnableMSP34x5D ()... */

-

-

-

-

-void CheckModeMSP34x5D(MSP3430Ptr m) {

-    const char stereo_on=25;

-    const char stereo_off=20;

-    const char dual_on=-stereo_on;

-    const char dual_off=-stereo_off;

-    char detect;

-    CARD8 matrix, fmmatrix, source, high, low;

-

-    fmmatrix=0;		/*no matrix*/

-    source=0;		/*FM*/

-    switch (m->c_format) {

-	case MSPFORMAT_NICAM_FM:

-	case MSPFORMAT_NICAM_AM:

-	case MSPFORMAT_SCART:

-	    source=( (m->c_format == MSPFORMAT_SCART)?2:1 );

-	    switch (m->mode) {

-		case MSPMODE_MONO:

-		    matrix=0x30;	/*MONO*/

-		    break;

-		case MSPMODE_A:

-		    matrix=0x00;	/*A*/

-		    break;

-		case MSPMODE_B:

-		    matrix=0x10;	/*B*/

-		    break;

-		default:

-		    matrix=0x20;	/*STEREO*/

-		    break;

-		}

-	    break;

-	default:

-	case MSPFORMAT_1xFM:

-	    matrix=0x00;	/*A*/

-	    break;

-	case MSPFORMAT_2xFM:

-	    switch (m->mode) {

-		case MSPMODE_MONO:

-		    matrix=0x30;	/*MONO*/

-		    break;

-		case MSPMODE_STEREO:

-		    matrix=0x20;	/*STEREO*/

-		    fmmatrix=((m->c_standard==MSPSTANDARD_FM_M)?2:1);

-		    break;

-		case MSPMODE_AB:

-		    matrix=0x20;	/*STEREO*/

-		    break;

-		case MSPMODE_A:

-		    matrix=0x00;	/*A*/

-		    break;

-		case MSPMODE_B:

-		    matrix=0x10;	/*B*/

-		    break;

-		default:

-    		/*FM_IDENT_CHECK*/

-    		GetMSP3430Data (m, RD_DSP, 0x00, 0x18, &high, &low);

-    		detect=(char)high;

-#if __MSPDEBUG__ > 1

-    		xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_INFO,"Stereo Detection Register: %d\n",detect);

-#endif

-    		if (detect>=((m->c_mode==MSPMODE_STEREO)?stereo_off:stereo_on)) {

-				m->c_mode=MSPMODE_STEREO;

-				matrix=0x20;	/*STEREO*/

-				fmmatrix=((m->c_standard==MSPSTANDARD_FM_M)?2:1);

-		    }

-			else if (detect<=((m->c_mode==MSPMODE_AB)?dual_off:dual_on)) {

-				m->c_mode=MSPMODE_AB;

-    			switch (m->mode) {

-			    case MSPMODE_STEREO_AB: matrix=0x20; break;

-			    case MSPMODE_STEREO_B: matrix=0x10; break;

-			    default:

-				case MSPMODE_A: matrix=0x00; break;

-				}

-			}

-    		else {

-				m->c_mode=MSPMODE_MONO;

-				matrix=0x30;	/*MONO*/

-			}

-		    break;

-	    } /* end - case mode*/

-	    break;

-    }

-

-    if (m->c_fmmatrix != fmmatrix) {

-        GetMSP3430Data (m, RD_DSP, 0x00, 0x0e, &high, &low);

-		SetMSP3430Data (m, WR_DSP, 0x00, 0x0e, high, fmmatrix);

-		m->c_fmmatrix = fmmatrix;

-    }

-

-    if ((m->c_matrix != matrix) || (m->c_source != source)) {

-        /*set chanel source and matrix for loudspeaker*/

-		SetMSP3430Data (m, WR_DSP, 0x00, 0x08, source, matrix);

-    	

-		m->c_matrix = matrix;

-		m->c_source = source;

-    }

-

-	if ( ((m->c_format) & 0xF0) == MSPFORMAT_NICAM)

-			SetMSP3430Data (m, WR_DEM, 0x00, 0x21, 0, 1);

-

-#if __MSPDEBUG__ > 0

-		    char *msg;

-		    switch (matrix) {

-			case 0x30: /*MONO*/

-			    msg="MONO";

-			    break;

-			case 0x00: /*LEFT*/

-			    msg="MONO/CHANNEL_1";

-			    break;

-			case 0x10: /*RIGHT*/

-			    msg="MONO/CHANNEL_2";

-			    break;

-			case 0x20: /*LEFT*/

-			    msg="STEREO";

-			    break;

-			default:

-			    msg="unknown";

-			    break;

-		    }

-    		    xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_INFO,"Audio mode set to: %s\n",msg);

-#endif

-}

-

+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <string.h>
+#include <unistd.h>
+
+#include "xf86.h"
+#include "xf86i2c.h"
+#include "msp3430.h"
+#include "i2c_def.h"
+
+#define CONTROL         0x00
+#define WR_DEM          0x10
+#define RD_DEM          0x11
+#define WR_DSP          0x12
+#define RD_DSP          0x13
+
+
+void InitMSP34xxG(MSP3430Ptr m);
+void InitMSP34x5D(MSP3430Ptr m);
+void CheckModeMSP34x5D(MSP3430Ptr m);
+static const char *MSP_getProductName (CARD16 product_id);
+void mpause(int milliseconds);
+
+#define __MSPDEBUG__	0
+
+#if __MSPDEBUG__ > 3
+
+void MSPBeep(MSP3430Ptr m, CARD8 freq);
+#define __MSPBEEP MSPBeep(m,0x14);
+
+#else
+
+#define __MSPBEEP 
+#endif
+
+static void SetMSP3430Control(MSP3430Ptr m, CARD8 RegAddress, CARD8 RegValueHigh, CARD8 RegValueLow)
+{
+   I2CByte data[3];
+   
+   data[0]=RegAddress;
+   data[1]=RegValueHigh;
+   data[2]=RegValueLow;
+   
+   I2C_WriteRead(&(m->d),data,3,NULL,0);
+}
+
+static void SetMSP3430Data(MSP3430Ptr m, CARD8 RegAddress, CARD8 RegSubAddressHigh, CARD8 RegSubAddressLow, 
+     CARD8 RegValueHigh, CARD8 RegValueLow)
+{
+   I2CByte data[5];
+#ifdef MSP_DEBUG
+   if(!m->registers_present[RegSubAddressLow]){
+   	xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_ERROR, "Attempt to access non-existent register in MSP34xxX: 0x%02x 0x%02x 0x%02x <- 0x%02x 0x%02x\n",
+		RegAddress, RegSubAddressHigh, RegSubAddressLow, RegValueHigh, RegValueLow);
+   	}
+#endif
+   
+   data[0] = RegAddress;
+   data[1] = RegSubAddressHigh;
+   data[2] = RegSubAddressLow;
+   data[3] = RegValueHigh;
+   data[4] = RegValueLow;
+   
+   I2C_WriteRead(&(m->d),data,5,NULL,0);
+}
+
+static void GetMSP3430Data(MSP3430Ptr m, CARD8 RegAddress, CARD8 RegSubAddressHigh, CARD8 RegSubAddressLow,
+            CARD8 *RegValueHigh, CARD8 *RegValueLow)
+{
+   I2CByte  send[3];
+   I2CByte  receive[2];
+   
+   send[0] = RegAddress;
+   send[1] = RegSubAddressHigh;
+   send[2] = RegSubAddressLow;
+   
+   I2C_WriteRead(&(m->d), send, 3, receive, 2);
+   
+   *RegValueHigh = receive[0];
+   *RegValueLow = receive[1];
+}
+
+#if __MSPDEBUG__ > 2
+static void MSP3430DumpStatus(MSP3430Ptr m)
+{
+CARD8 status_hi, status_lo;
+CARD8 subaddr, data[2];
+
+GetMSP3430Data(m, RD_DEM, 0x02, 0x00, &status_hi, &status_lo);
+xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "MSP34xx: SAP(8)=%d mono/NICAM(7)=%d stereo=%d %s O_1=%d O_0=%d 2nd car=%d 1st car=%d\n",
+		status_hi & 1, (status_lo>>7) & 1, (status_lo>>6)&1, 
+		(status_lo>>5)? ( (status_hi>>1)&1? "bad NICAM reception" : "NICAM" ) : 
+		                ((status_hi>>1)&1 ? "bogus" : "ANALOG FM/AM") , 
+		(status_lo>>4)&1, (status_lo>>3)&1,!( (status_lo>>2)&1), !((status_lo>>1)&1));
+
+GetMSP3430Data(m, RD_DEM, 0x00, 0x7E, &status_hi, &status_lo);
+xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "MSP34xx: standard result=0x%02x%02x\n",
+		status_hi, status_lo);
+subaddr=0x0;
+I2C_WriteRead(&(m->d), &subaddr, 1, data, 2);
+xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "MSP34xx: control=0x%02x%02x\n",
+		data[1], data[0]);
+}
+#endif
+
+/* wrapper */
+void InitMSP3430(MSP3430Ptr m)
+{
+  #if __MSPDEBUG__ > 1
+  xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_INFO,"InitMSP3430(m->connector=%d, m->standard=%d, m->chip_family=%d)\n",
+  		m->connector, m->standard, m->chip_family);
+  #endif
+	switch (m->chip_family) {
+		case MSPFAMILY_34x0G:
+			InitMSP34xxG(m);
+			break;
+		case MSPFAMILY_34x5G:
+			InitMSP34xxG(m);
+			break;
+		case MSPFAMILY_34x5D:
+			InitMSP34x5D(m);
+			break;
+	}
+}
+
+/*-----------------------------------------------------------------
+| common functions for all MSP34xx chips 
+|----------------------------------------------------------------*/
+
+MSP3430Ptr DetectMSP3430(I2CBusPtr b, I2CSlaveAddr addr)
+{
+   MSP3430Ptr m;
+   I2CByte a;
+   CARD8 hardware_version, major_revision, product_code, rom_version;
+   Bool supported;
+   
+   m = calloc(1,sizeof(MSP3430Rec));
+   if(m == NULL)return NULL;
+   m->d.DevName = strdup("MSP34xx");
+   m->d.SlaveAddr = addr;
+   m->d.pI2CBus = b;
+   m->d.NextDev = NULL;
+   m->d.StartTimeout = b->StartTimeout;
+   m->d.BitTimeout = b->BitTimeout;
+   m->d.AcknTimeout = b->AcknTimeout;
+   m->d.ByteTimeout = b->ByteTimeout;
+   
+   if(!I2C_WriteRead(&(m->d), NULL, 0, &a, 1))
+   {
+       free(m->d.DevName);
+       free(m);
+	return NULL;
+    }
+
+
+	m->standard=MSP3430_NTSC;
+	m->connector=MSP3430_CONNECTOR_1;
+	m->mode=MSPMODE_STEREO_A;	/*stereo or chanel A if avail. */
+    	m->c_format=MSPFORMAT_UNKNOWN;
+    	m->c_standard=MSPSTANDARD_UNKNOWN;
+    	m->c_matrix=m->c_fmmatrix=m->c_source=0;
+	m->volume=0;
+	m->recheck=FALSE;
+
+   GetMSP3430Data(m, RD_DSP, 0x00, 0x1E, &hardware_version, &major_revision);
+   GetMSP3430Data(m, RD_DSP, 0x00, 0x1F, &product_code, &rom_version);
+   m->hardware_version=hardware_version;
+   m->major_revision=major_revision;
+   m->product_code=product_code;
+   m->rom_version=rom_version;
+
+   m->chip_id=((major_revision << 8) | product_code);
+   
+   supported=FALSE;
+   switch (major_revision) {
+   case 4:	/* 34xxD */
+      switch (product_code) {
+	  case 0x05: /* 3405D */
+	  case 0x0A: /* 3410D */
+	  case 0x0F: /* 3415D */
+	  	m->chip_family=MSPFAMILY_34x5D;
+		m->recheck=TRUE;
+		supported=TRUE;
+		break;
+      default:
+	  	m->chip_family=MSPFAMILY_34x0D;
+      }
+	  break;
+   case 7:	/* 34xxG */
+   	switch(product_code){
+		case 0x00:
+		case 0x0A:
+		case 0x1E:
+		case 0x28:
+		case 0x32:
+		  	m->chip_family=MSPFAMILY_34x0G;
+			supported=TRUE;
+			break;
+		case 0x0f:
+		case 0x19:
+		case 0x2d:
+		case 0x37:
+		case 0x41:
+		  	m->chip_family=MSPFAMILY_34x5G;
+			supported=TRUE;
+			#ifdef MSP_DEBUG
+			memset(m->registers_present, 0, 256);
+			#define A(num) m->registers_present[(num)]=1;
+			#define B(num1, num2) memset(&(m->registers_present[num1]), 1, num2-num1);
+			A(0x20)
+			A(0x30)
+			A(0x40)
+			A(0x00)
+			B(0x01, 0x08)
+			B(0x0B, 0x0E)
+			A(0x10)
+			B(0x12,0x14)
+			A(0x16)
+			A(0x29)
+			#undef B
+			#undef A
+			#endif
+			break;
+		default:
+		  	m->chip_family=MSPFAMILY_UNKNOWN;
+		}
+		break;
+   default:
+	  	m->chip_family=MSPFAMILY_UNKNOWN;
+   }
+   
+	xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "Found %s%s, rom version 0x%02x, chip_id=0x%04x\n",
+		MSP_getProductName(m->chip_id), supported?"":" (unsupported)", rom_version, m->chip_id);
+
+	if (!supported) {
+            free(m->d.DevName);
+            free(m);
+            return NULL;
+	}
+   if(!I2CDevInit(&(m->d)))
+   {
+       free(m->d.DevName);
+       free(m);
+       return NULL;
+   }
+
+   return m;  
+}
+
+void ResetMSP3430(MSP3430Ptr m)
+{
+    /* Reset the MSP3430 */
+    SetMSP3430Control(m, 0x00, 0x80, 0x00);
+    /* Set it back to normal operation */
+    SetMSP3430Control(m, 0x00, 0x00, 0x00);
+
+    m->c_format=MSPFORMAT_UNKNOWN;
+    m->c_standard=MSPSTANDARD_UNKNOWN;
+    m->c_matrix=m->c_fmmatrix=m->c_source=0;
+	m->volume=0;
+}   
+
+void MSP3430SetVolume (MSP3430Ptr m, CARD8 value)
+{
+    CARD8 result;
+#if 0
+    CARD8 old_volume;
+    GetMSP3430Data(m, RD_DSP, 0x00, 0x00, &old_volume, &result);   
+    xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "MSP3430 result 0x%02x\n", result);
+#endif
+    /* save an extra Get call */
+    result=0;
+
+    SetMSP3430Data(m, WR_DSP, 0x00, 0x00, value, result);
+
+    SetMSP3430Data(m, WR_DSP, 0x00, 0x07, value, 0);
+    m->volume=value;
+
+#if __MSPDEBUG__ > 2
+    MSP3430DumpStatus(m); 
+    __MSPBEEP
+    GetMSP3430Data(m, RD_DSP, 0x00, 0x00, &old_volume, &result);
+    xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "MSP3430 volume 0x%02x\n",value);
+#endif
+}
+
+
+void MSP3430SetSAP (MSP3430Ptr m, int mode)
+{
+	xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "Put actual code to change SAP here\n");
+
+      SetMSP3430Data(m, WR_DSP, 0x00, 0x08, mode & 0xff, 0x20); 
+}
+
+
+#if 0
+void MSP3430SetSource(MSP3430Ptr m, CARD8 value)
+{
+    /* Write to DSP, register 0x0008, (loudspeaker channel source/matrix) */
+    /* This sets the source to the TV tuner, for stereo operation */
+    SetMSP3430Data(m, WR_DSP, 0x00, 0x08, value, 0x20);
+}
+#endif
+
+
+static const char *
+MSP_getProductName (CARD16 product_id)
+{
+	switch (product_id) {
+		case 0x0400: return "MSP3400D";
+		case 0x040a: return "MSP3410D";
+		case 0x0405: return "MSP3405D";
+		case 0x040f: return "MSP3415D";
+		case 0x0700: return "MSP3400G";
+		case 0x070a: return "MSP3410G";
+		case 0x071e: return "MSP3430G";
+		case 0x0728: return "MSP3440G";
+		case 0x0732: return "MSP3450G";
+		case 0x070f: return "MSP3415G";
+		case 0x0719: return "MSP3425G";
+		case 0x072d: return "MSP3445G";
+		case 0x0737: return "MSP3455G";
+		case 0x0741: return "MSP3465G";
+	}
+	return "MSP - unknown type";
+}
+
+#if __MSPDEBUG__ > 2
+/*puts beep in MSP output
+    freq = 0x01 - 16Hz ... 0x40 - 1kHz ... 0xff - 4kHz  
+*/
+void MSPBeep(MSP3430Ptr m, CARD8 freq) {
+    SetMSP3430Data (m, WR_DSP, 0x00, freq, 0x7f, 0x40);
+    mpause(100);
+    SetMSP3430Data (m, WR_DSP, 0x00, 0x14, 0x00, 0x00);
+}
+#endif
+
+void mpause(int milliseconds) {
+    int i,m;
+    m=milliseconds/20;
+    for (i=0;i<m;i++) usleep(20000);
+}
+
+/*-----------------------------------------------------------------
+| specific functions for all MSP34xxG chips 
+|----------------------------------------------------------------*/
+
+void InitMSP34xxG(MSP3430Ptr m)
+{
+
+  #if __MSPDEBUG__ > 1
+  xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_INFO,"InitMSP34xxG(m->connector=%d, m->standard=%d, m->chip_family=%d)\n",
+  		m->connector, m->standard, m->chip_family);
+  #endif
+   /* Reset MSP3430 */
+   SetMSP3430Control(m, 0x00, 0x80, 0x00);
+   /* Set it back to normal operation */
+   SetMSP3430Control(m, 0x00, 0x00, 0x00);
+   
+   /*set MODUS register */
+   /* bits: 0 - automatic sound detection */
+   /*       1 - enable STATUS change */
+   /*       12 - detect 6.5 Mhz carrier as D/K1, D/K2 or D/K NICAM  (does not seem to work ) */
+   /*       13 - detect 4.5 Mhz carrier as BTSC */ 
+   if ( (m->standard & 0xff) == MSP3430_PAL )
+   {
+      SetMSP3430Data(m, WR_DEM, 0x00, 0x30, 0x30, 0x03|0x08);    /* make O_ pins tristate */
+      /* PAL standard */
+      SetMSP3430Data(m, WR_DEM, 0x00, 0x20, 0x00, 0x01); /* possibly wrong */
+   } else {
+      SetMSP3430Data(m, WR_DEM, 0x00, 0x30, 0x20, 0x03|0x08);
+      /* standard selection is M-BTSC-Stereo */
+      SetMSP3430Data(m, WR_DEM, 0x00, 0x20, 0x00, 0x20); 
+   }
+   
+   switch(m->connector){
+         case MSP3430_CONNECTOR_1:
+	        SetMSP3430Data(m, WR_DSP, 0x00, 0x08, 0x03, 0x20);
+	        break;
+	 case MSP3430_CONNECTOR_2:
+		/* this has not been checked yet.. could be bogus */
+    		/* SCART Input Prescale: 0 dB gain */
+		SetMSP3430Data(m, WR_DSP, 0x00, 0x0d, 0x19, 0x00);
+    		SetMSP3430Data(m, WR_DSP, 0x00, 0x08, 0x02, 0x20);   	
+		break;
+	case MSP3430_CONNECTOR_3:
+	default:
+    		/* SCART Input Prescale: 0 dB gain */
+		SetMSP3430Data(m, WR_DSP, 0x00, 0x0d, 0x19, 0x00);
+		
+    		SetMSP3430Data(m, WR_DSP, 0x00, 0x08, 0x02, 0x20);
+    		break;
+	}
+	      
+    switch(m->standard){
+        case MSP3430_PAL:
+     		SetMSP3430Data(m, WR_DSP, 0x00, 0x0e, 0x24, 0x03);
+     		SetMSP3430Data(m, WR_DSP, 0x00, 0x10, 0x00, 0x5a);
+                SetMSP3430Data(m, WR_DEM, 0x00, 0x20, 0x00, 0x03);
+                /* Set volume to FAST_MUTE. */
+     	        SetMSP3430Data(m, WR_DSP, 0x00, 0x00, 0xFF, 0x00);
+	        break;
+        case MSP3430_PAL_DK1:
+     		SetMSP3430Data(m, WR_DSP, 0x00, 0x0e, 0x24, 0x03);
+     		SetMSP3430Data(m, WR_DSP, 0x00, 0x10, 0x00, 0x5a);
+		SetMSP3430Data(m, WR_DEM, 0x00, 0x20, 0x00, 0x04);
+                /* Set volume to FAST_MUTE. */
+     	        SetMSP3430Data(m, WR_DSP, 0x00, 0x00, 0xFF, 0x00);
+		break;
+	case MSP3430_SECAM: /* is this right ? */
+        case MSP3430_NTSC:         
+                /* Write to DSP, register 0x000E, (prescale FM/FM matrix) */
+                SetMSP3430Data(m, WR_DSP, 0x00, 0x0e, 0x24, 0x03);
+
+                /* Set volume to FAST_MUTE. */
+                SetMSP3430Data(m, WR_DSP, 0x00, 0x00, 0xFF, 0x00);
+		break;
+	}
+
+}
+
+/*-----------------------------------------------------------------
+| specific functions for all MSP34x5D chips 
+|----------------------------------------------------------------*/
+
+void InitMSP34x5D(MSP3430Ptr m)
+{
+int count;
+CARD8 high,low;
+CARD16 result,standard;
+CARD16 peak;
+
+
+if (m->c_format==MSPFORMAT_UNKNOWN) ResetMSP3430(m);
+else {
+    /*mute volume*/
+    SetMSP3430Data (m, WR_DSP, 0x00, 0x00, 0x00, 0x00);
+}
+
+
+
+    switch(m->connector){
+	case MSP3430_CONNECTOR_2:
+	case MSP3430_CONNECTOR_3:
+	    if (m->c_format!=MSPFORMAT_SCART) {
+    		/* SCART Input Prescale: 0 dB gain */
+			SetMSP3430Data (m, WR_DSP, 0x00, 0x0d, 0x19, 0x00);
+			/* this has not been checked yet.. could be bogus */
+			m->c_format=MSPFORMAT_SCART;	/*stereo*/
+		}
+	    break;
+	case MSP3430_CONNECTOR_1:
+	default:
+	
+	    switch ( m->standard & 0x00ff ) {
+		case MSP3430_PAL:
+			switch( m->standard ) {
+			case MSP3430_PAL_DK1:
+			    standard=MSPSTANDARD_FM_DK1;
+			    break;
+/*			case MSP3430_PAL_DK2:
+			    standard=MSPSTANDARD_FM_DK2;
+			    break;
+			case MSP3430_PAL_BG:
+			may be FM stereo (Germany) or FM NICAM (Scandinavia,spain)
+			    standard=MSPSTANDARD_AUTO;
+			    break;
+*/
+			default:
+			    standard=MSPSTANDARD_AUTO;
+			}
+		    break;
+		case MSP3430_SECAM:
+		    standard=MSPSTANDARD_AUTO;
+		case MSP3430_NTSC:
+			    /* Only MSP34x5 supported format - Korean NTSC-M*/
+			 standard=MSPSTANDARD_FM_M;
+		default:
+		    standard=MSPSTANDARD_AUTO;
+		}
+		
+	    /*no NICAM support in MSP3410D - force to autodetect*/
+	    if ((m->chip_id==0x405) && (standard>=MSPSTANDARD_NICAM_BG))
+    		standard=MSPSTANDARD_AUTO;
+		    
+	    if (m->c_standard != standard) {
+
+   	        SetMSP3430Data (m, WR_DEM, 0x00, 0x20, standard>>8, standard & 0xFF);
+	        if (standard==MSPSTANDARD_AUTO) {
+			    count = 50; /* time shouldn't exceed 1s, just in case */
+			    do {
+     		        usleep(20000);
+     		        GetMSP3430Data (m, RD_DEM, 0x00, 0x7e, &high, &low);
+			        result = ( high << 8 ) | low;
+     		        --count;
+	    	    } while( result > 0x07ff && count > 0 );
+		    
+		    	if ((result > MSPSTANDARD_AUTO))
+					standard=result;
+		    	else standard=MSPSTANDARD_UNKNOWN;
+#if __MSPDEBUG__ > 1
+				xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_INFO,"Detected audio standard: %d\n",result);
+#endif		    	
+		    	/* result = MSPSTANDARD_NICAM_L can be one of:
+		    	SECAM_L - MSPSTANDARD_NICAM_L
+		    	D/K1 - MSPSTANDARD_FM_DK1
+		    	D/K2 - MSPSTANDARD_FM_DK2
+		    	D/K-NICAM - MSPSTANDARD_NICAM_DK*/
+		    	if( standard == MSPSTANDARD_NICAM_L ) {
+		        	if ((m->standard & 0x00ff)==MSP3430_PAL) {
+			    		/* force PAL D/K  */
+			    		standard=MSPSTANDARD_FM_DK1;
+		            	SetMSP3430Data (m, WR_DEM, 0x00, 0x20, standard>>8, standard & 0xFF);
+#if __MSPDEBUG__ > 1
+			        	xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_INFO, "Detected 6.5MHz carrier - forced to D/K1 !!!\n" );
+#endif
+					}
+		    	}
+			}
+			m->c_standard=standard;
+	    } /*end - standard changed*/
+	    else {
+			if (standard<MSPSTANDARD_NICAM_BG) {
+    		    /* get old value of ident. mode register*/
+		    	GetMSP3430Data (m, RD_DSP, 0x00, 0x15, &high, &low);
+    		    /* reset Ident-Filter */
+    		    SetMSP3430Data (m, WR_DSP, 0x00, 0x14, 0x00, 0x3F);
+		    	/* put back old value to ident. mode register*/
+    		    SetMSP3430Data (m, WR_DSP, 0x00, 0x14, 0x00, low);
+			}
+	    }
+
+	    if (standard<=MSPSTANDARD_AUTO) {
+    	   	m->c_format=MSPFORMAT_1xFM;
+	    }
+	    else if (standard<MSPSTANDARD_NICAM_BG) {
+			/* set FM prescale */
+			SetMSP3430Data (m, WR_DSP, 0x00, 0x0e, 0x30, 0);
+			/* set FM deemphasis*/
+			SetMSP3430Data (m, WR_DSP, 0x00, 0x0f, ((standard==MSPSTANDARD_FM_M)?0:1), 0);
+		    	
+			/* check if FM2 carrier is present */
+			/*turn off FM DC Notch*/
+			SetMSP3430Data (m, WR_DSP, 0x00, 0x17, 0x00, 0x3f);
+			/*matrix source for Quasi-Peak Detector - stereo: ch2->L ch1->R*/
+			SetMSP3430Data (m, WR_DSP, 0x00, 0x0c, 0x00, 0x20);
+			
+			mpause(250);
+   		    GetMSP3430Data (m, RD_DSP, 0x00, 0x1A, &high, &low);
+			peak = (high << 8) | low;
+#if __MSPDEBUG__ > 1
+			xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_INFO,"Second carrier Quasi-Peak detection: %d\n",peak);
+#endif	    	
+			/*turn on FM DC Notch*/
+			SetMSP3430Data (m, WR_DSP, 0x00, 0x17, 0x00, 0x00);
+	    	
+			if (peak<5) {
+	    	    /* if second carrier not detected - only mono from first carrier*/
+	    	    m->c_format=MSPFORMAT_1xFM;
+			}
+			else {
+	    	    m->c_format=MSPFORMAT_2xFM;
+    	   	    /*start of FM identification process - FM_WAIT
+	    	    wait at least 0.5s - used 1s - gives beter resolution*/
+    	   	    mpause(1000);
+			}
+	    }
+	    else {
+			if (standard==MSPSTANDARD_NICAM_L) {
+	    	    m->c_format=MSPFORMAT_NICAM_AM;
+		    	/* set AM prescale */
+		    	SetMSP3430Data (m, WR_DSP, 0x00, 0x0e, 0x7C, 0);
+			}
+			else {
+	    	    m->c_format=MSPFORMAT_NICAM_FM;
+		    	/* set FM prescale */
+			    SetMSP3430Data (m, WR_DSP, 0x00, 0x0e, 0x30, 0);
+			}
+			/* set FM deemphasis*/
+			SetMSP3430Data (m, WR_DSP, 0x00, 0x0f, 0x00, 0);
+			/* set NICAM prescale to 0dB */
+			SetMSP3430Data (m, WR_DSP, 0x00, 0x10, 0x20, 0);
+	    }
+	    
+	    break;
+	} /*end - case conector*/
+
+    CheckModeMSP34x5D(m);
+    
+    /* Set volume to FAST_MUTE. */
+    /*SetMSP3430Data(m, WR_DSP, 0x00, 0x00, 0xFF, 0x00);*/
+    /*set volume*/
+	MSP3430SetVolume(m,m->volume);
+    
+    __MSPBEEP
+
+
+} /* EnableMSP34x5D ()... */
+
+
+
+
+void CheckModeMSP34x5D(MSP3430Ptr m) {
+    const char stereo_on=25;
+    const char stereo_off=20;
+    const char dual_on=-stereo_on;
+    const char dual_off=-stereo_off;
+    char detect;
+    CARD8 matrix, fmmatrix, source, high, low;
+
+    fmmatrix=0;		/*no matrix*/
+    source=0;		/*FM*/
+    switch (m->c_format) {
+	case MSPFORMAT_NICAM_FM:
+	case MSPFORMAT_NICAM_AM:
+	case MSPFORMAT_SCART:
+	    source=( (m->c_format == MSPFORMAT_SCART)?2:1 );
+	    switch (m->mode) {
+		case MSPMODE_MONO:
+		    matrix=0x30;	/*MONO*/
+		    break;
+		case MSPMODE_A:
+		    matrix=0x00;	/*A*/
+		    break;
+		case MSPMODE_B:
+		    matrix=0x10;	/*B*/
+		    break;
+		default:
+		    matrix=0x20;	/*STEREO*/
+		    break;
+		}
+	    break;
+	default:
+	case MSPFORMAT_1xFM:
+	    matrix=0x00;	/*A*/
+	    break;
+	case MSPFORMAT_2xFM:
+	    switch (m->mode) {
+		case MSPMODE_MONO:
+		    matrix=0x30;	/*MONO*/
+		    break;
+		case MSPMODE_STEREO:
+		    matrix=0x20;	/*STEREO*/
+		    fmmatrix=((m->c_standard==MSPSTANDARD_FM_M)?2:1);
+		    break;
+		case MSPMODE_AB:
+		    matrix=0x20;	/*STEREO*/
+		    break;
+		case MSPMODE_A:
+		    matrix=0x00;	/*A*/
+		    break;
+		case MSPMODE_B:
+		    matrix=0x10;	/*B*/
+		    break;
+		default:
+    		/*FM_IDENT_CHECK*/
+    		GetMSP3430Data (m, RD_DSP, 0x00, 0x18, &high, &low);
+    		detect=(char)high;
+#if __MSPDEBUG__ > 1
+    		xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_INFO,"Stereo Detection Register: %d\n",detect);
+#endif
+    		if (detect>=((m->c_mode==MSPMODE_STEREO)?stereo_off:stereo_on)) {
+				m->c_mode=MSPMODE_STEREO;
+				matrix=0x20;	/*STEREO*/
+				fmmatrix=((m->c_standard==MSPSTANDARD_FM_M)?2:1);
+		    }
+			else if (detect<=((m->c_mode==MSPMODE_AB)?dual_off:dual_on)) {
+				m->c_mode=MSPMODE_AB;
+    			switch (m->mode) {
+			    case MSPMODE_STEREO_AB: matrix=0x20; break;
+			    case MSPMODE_STEREO_B: matrix=0x10; break;
+			    default:
+				case MSPMODE_A: matrix=0x00; break;
+				}
+			}
+    		else {
+				m->c_mode=MSPMODE_MONO;
+				matrix=0x30;	/*MONO*/
+			}
+		    break;
+	    } /* end - case mode*/
+	    break;
+    }
+
+    if (m->c_fmmatrix != fmmatrix) {
+        GetMSP3430Data (m, RD_DSP, 0x00, 0x0e, &high, &low);
+		SetMSP3430Data (m, WR_DSP, 0x00, 0x0e, high, fmmatrix);
+		m->c_fmmatrix = fmmatrix;
+    }
+
+    if ((m->c_matrix != matrix) || (m->c_source != source)) {
+        /*set chanel source and matrix for loudspeaker*/
+		SetMSP3430Data (m, WR_DSP, 0x00, 0x08, source, matrix);
+    	
+		m->c_matrix = matrix;
+		m->c_source = source;
+    }
+
+	if ( ((m->c_format) & 0xF0) == MSPFORMAT_NICAM)
+			SetMSP3430Data (m, WR_DEM, 0x00, 0x21, 0, 1);
+
+#if __MSPDEBUG__ > 0
+		    char *msg;
+		    switch (matrix) {
+			case 0x30: /*MONO*/
+			    msg="MONO";
+			    break;
+			case 0x00: /*LEFT*/
+			    msg="MONO/CHANNEL_1";
+			    break;
+			case 0x10: /*RIGHT*/
+			    msg="MONO/CHANNEL_2";
+			    break;
+			case 0x20: /*LEFT*/
+			    msg="STEREO";
+			    break;
+			default:
+			    msg="unknown";
+			    break;
+		    }
+    		    xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_INFO,"Audio mode set to: %s\n",msg);
+#endif
+}
+
diff --git a/xorg-server/hw/xfree86/loader/loadmod.c b/xorg-server/hw/xfree86/loader/loadmod.c
index a21f43d63..c697d74ed 100644
--- a/xorg-server/hw/xfree86/loader/loadmod.c
+++ b/xorg-server/hw/xfree86/loader/loadmod.c
@@ -437,14 +437,11 @@ FindModule(const char *module, const char *dirname, const char **subdirlist,
 	   PatternPtr patterns)
 {
     char buf[PATH_MAX + 1];
-    char *dirpath = NULL;
     char *name = NULL;
-    int dirlen;
     const char **subdirs = NULL;
     const char **s;
 
-    dirpath = (char *)dirname;
-    if (strlen(dirpath) > PATH_MAX)
+    if (strlen(dirname) > PATH_MAX)
 	return NULL;
     
     subdirs = InitSubdirs(subdirlist);
@@ -452,17 +449,15 @@ FindModule(const char *module, const char *dirname, const char **subdirlist,
 	return NULL;
 
     for (s = subdirs; *s; s++) {
-	if ((dirlen = strlen(dirpath) + strlen(*s)) > PATH_MAX)
+	if ((strlen(dirname) + strlen(*s)) > PATH_MAX)
 	    continue;
-	strcpy(buf, dirpath);
+	strcpy(buf, dirname);
 	strcat(buf, *s);
         if ((name = FindModuleInSubdir(buf, module)))
             break;
     }
 
     FreeSubdirs(subdirs);
-    if (dirpath != dirname)
-	free(dirpath);
 
     return name;
 }
diff --git a/xorg-server/hw/xfree86/modes/xf86Crtc.c b/xorg-server/hw/xfree86/modes/xf86Crtc.c
index 953215196..da9db3460 100644
--- a/xorg-server/hw/xfree86/modes/xf86Crtc.c
+++ b/xorg-server/hw/xfree86/modes/xf86Crtc.c
@@ -481,7 +481,7 @@ static void
 xf86OutputSetMonitor (xf86OutputPtr output)
 {
     char    *option_name;
-    char    *monitor;
+    const char    *monitor;
 
     if (!output->name)
 	return;
@@ -561,7 +561,7 @@ xf86OutputIgnored (xf86OutputPtr    output)
     return xf86ReturnOptValBool (output->options, OPTION_IGNORE, FALSE);
 }
 
-static char *direction[4] = {
+static const char *direction[4] = {
     "normal", 
     "left", 
     "inverted", 
@@ -3063,13 +3063,13 @@ xf86OutputGetEDID (xf86OutputPtr output, I2CBusPtr pDDCBus)
     return mon;
 }
 
-static char *_xf86ConnectorNames[] = {
+static const char *_xf86ConnectorNames[] = {
 					"None", "VGA", "DVI-I", "DVI-D",
 					"DVI-A", "Composite", "S-Video",
 					"Component", "LFP", "Proprietary",
 					"HDMI", "DisplayPort",
 				     };
-char *
+const char *
 xf86ConnectorGetName(xf86ConnectorType connector)
 {
     return _xf86ConnectorNames[connector];
diff --git a/xorg-server/hw/xfree86/modes/xf86Crtc.h b/xorg-server/hw/xfree86/modes/xf86Crtc.h
index 716499f8d..8d4a08938 100644
--- a/xorg-server/hw/xfree86/modes/xf86Crtc.h
+++ b/xorg-server/hw/xfree86/modes/xf86Crtc.h
@@ -900,7 +900,7 @@ xf86CrtcSetScreenSubpixelOrder (ScreenPtr pScreen);
 /*
  * Get a standard string name for a connector type 
  */
-extern _X_EXPORT char *
+extern _X_EXPORT const char *
 xf86ConnectorGetName(xf86ConnectorType connector);
 
 /*
diff --git a/xorg-server/hw/xfree86/modes/xf86EdidModes.c b/xorg-server/hw/xfree86/modes/xf86EdidModes.c
index 86065f869..0100d2a59 100644
--- a/xorg-server/hw/xfree86/modes/xf86EdidModes.c
+++ b/xorg-server/hw/xfree86/modes/xf86EdidModes.c
@@ -230,7 +230,7 @@ static Bool quirk_dvi_single_link(int scrnIndex, xf86MonPtr DDC)
 typedef struct {
     Bool	(*detect) (int scrnIndex, xf86MonPtr DDC);
     ddc_quirk_t	quirk;
-    char	*description;
+    const char	*description;
 } ddc_quirk_map_t;
 
 static const ddc_quirk_map_t ddc_quirks[] = {
diff --git a/xorg-server/hw/xfree86/modes/xf86Modes.c b/xorg-server/hw/xfree86/modes/xf86Modes.c
index dcd3a2805..49cc14992 100644
--- a/xorg-server/hw/xfree86/modes/xf86Modes.c
+++ b/xorg-server/hw/xfree86/modes/xf86Modes.c
@@ -272,7 +272,7 @@ xf86ModesEqual(const DisplayModeRec *pMode1, const DisplayModeRec *pMode2)
 }
 
 static void
-add(char **p, char *new)
+add(char **p, const char *new)
 {
     *p = xnfrealloc(*p, strlen(*p) + strlen(new) + 2);
     strcat(*p, " ");
@@ -599,7 +599,7 @@ xf86PruneInvalidModes(ScrnInfoPtr pScrn, DisplayModePtr *modeList,
 
 	if (mode->status != MODE_OK) {
 	    if (verbose) {
-		char *type = "";
+		const char *type = "";
 		if (mode->type & M_T_BUILTIN)
 		    type = "built-in ";
 		else if (mode->type & M_T_DEFAULT)
diff --git a/xorg-server/hw/xfree86/os-support/bsd/bsd_init.c b/xorg-server/hw/xfree86/os-support/bsd/bsd_init.c
index b58d6a790..7079d62b4 100644
--- a/xorg-server/hw/xfree86/os-support/bsd/bsd_init.c
+++ b/xorg-server/hw/xfree86/os-support/bsd/bsd_init.c
@@ -446,7 +446,7 @@ xf86OpenSyscons()
 	    }
 
 	    close(fd);
-	    sprintf(vtname, "/dev/ttyv%01x", xf86Info.vtno - 1);
+	    snprintf(vtname, sizeof(vtname), "/dev/ttyv%01x", xf86Info.vtno - 1);
 	    if ((fd = open(vtname, SYSCONS_CONSOLE_MODE, 0)) < 0)
 	    {
 		FatalError("xf86OpenSyscons: Cannot open %s (%s)",
@@ -550,13 +550,13 @@ xf86OpenPcvt()
 	    }
 
 	    close(fd);
-            sprintf(vtname, "%s%01x", vtprefix, xf86Info.vtno - 1);
+            snprintf(vtname, sizeof(vtname), "%s%01x", vtprefix, xf86Info.vtno - 1);
 	    if ((fd = open(vtname, PCVT_CONSOLE_MODE, 0)) < 0)
 	    {
 		ErrorF("xf86OpenPcvt: Cannot open %s (%s)",
 			   vtname, strerror(errno));
 		xf86Info.vtno = initialVT;
-	        sprintf(vtname, "%s%01x", vtprefix, xf86Info.vtno - 1);
+	        snprintf(vtname, sizeof(vtname), "%s%01x", vtprefix, xf86Info.vtno - 1);
 		if ((fd = open(vtname, PCVT_CONSOLE_MODE, 0)) < 0) {
 			FatalError("xf86OpenPcvt: Cannot open %s (%s)",
 			   	vtname, strerror(errno));
@@ -602,9 +602,9 @@ xf86OpenWScons()
     /* XXX Is this ok? */
     for (i = 0; i < 8; i++) {
 #if defined(__NetBSD__)
-	sprintf(ttyname, "/dev/ttyE%d", i);
+	snprintf(ttyname, sizeof(ttyname), "/dev/ttyE%d", i);
 #elif defined(__OpenBSD__)
-	sprintf(ttyname, "/dev/ttyC%x", i);
+	snprintf(ttyname,  sizeof(ttyname), "/dev/ttyC%x", i);
 #endif
 	if ((fd = open(ttyname, 2)) != -1)
 	    break;
diff --git a/xorg-server/hw/xfree86/os-support/bus/Sbus.c b/xorg-server/hw/xfree86/os-support/bus/Sbus.c
index 7c4888126..c02d2cd55 100644
--- a/xorg-server/hw/xfree86/os-support/bus/Sbus.c
+++ b/xorg-server/hw/xfree86/os-support/bus/Sbus.c
@@ -1,688 +1,688 @@
-/*

- * SBUS and OpenPROM access functions.

- *

- * Copyright (C) 2000 Jakub Jelinek (jakub@redhat.com)

- *

- * 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

- * JAKUB JELINEK 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.

- */

-

-#ifdef HAVE_XORG_CONFIG_H

-#include <xorg-config.h>

-#endif

-

-#include <fcntl.h>

-#include <stdio.h>

-#include <unistd.h>

-#include <stdlib.h>

-#include <sys/ioctl.h>

-#include <sys/mman.h>

-#ifdef sun

-#include <sys/utsname.h>

-#endif

-#include "xf86.h"

-#include "xf86Priv.h"

-#include "xf86_OSlib.h"

-

-#include "xf86sbusBus.h"

-#include "xf86Sbus.h"

-

-int promRootNode;

-

-static int promFd = -1;

-static int promCurrentNode;

-static int promOpenCount = 0;

-static int promP1275 = -1;

-#define MAX_PROP	128

-#define MAX_VAL		(4096-128-4)

-static struct openpromio *promOpio;

-

-sbusDevicePtr *xf86SbusInfo = NULL;

-

-struct sbus_devtable sbusDeviceTable[] = {

-    { SBUS_DEVICE_BW2, FBTYPE_SUN2BW, "bwtwo", "sunbw2", "Sun Monochrome (bwtwo)" },

-    { SBUS_DEVICE_CG2, FBTYPE_SUN2COLOR, "cgtwo", NULL, "Sun Color2 (cgtwo)" },

-    { SBUS_DEVICE_CG3, FBTYPE_SUN3COLOR, "cgthree", "suncg3", "Sun Color3 (cgthree)" },

-    { SBUS_DEVICE_CG4, FBTYPE_SUN4COLOR, "cgfour", NULL, "Sun Color4 (cgfour)" },

-    { SBUS_DEVICE_CG6, FBTYPE_SUNFAST_COLOR, "cgsix", "suncg6", "Sun GX" },

-    { SBUS_DEVICE_CG8, FBTYPE_MEMCOLOR, "cgeight", NULL, "Sun CG8/RasterOps" },

-    { SBUS_DEVICE_CG12, FBTYPE_SUNGP3, "cgtwelve", NULL, "Sun GS (cgtwelve)" },

-    { SBUS_DEVICE_CG14, FBTYPE_MDICOLOR, "cgfourteen", "suncg14", "Sun SX" },

-    { SBUS_DEVICE_GT, FBTYPE_SUNGT, "gt", NULL, "Sun Graphics Tower" },

-    { SBUS_DEVICE_MGX, -1, "mgx", NULL, "Quantum 3D MGXplus" },

-    { SBUS_DEVICE_LEO, FBTYPE_SUNLEO, "leo", "sunleo", "Sun ZX or Turbo ZX" },

-    { SBUS_DEVICE_TCX, FBTYPE_TCXCOLOR, "tcx", "suntcx", "Sun TCX" },

-    { SBUS_DEVICE_FFB, FBTYPE_CREATOR, "ffb", "sunffb", "Sun FFB" },

-    { SBUS_DEVICE_FFB, FBTYPE_CREATOR, "afb", "sunffb", "Sun Elite3D" },

-    { 0, 0, NULL }

-};

-

-int

-promGetSibling(int node)

-{

-    promOpio->oprom_size = sizeof(int);

-

-    if (node == -1) return 0;

-    *(int *)promOpio->oprom_array = node;

-    if (ioctl(promFd, OPROMNEXT, promOpio) < 0)

-	return 0;

-    promCurrentNode = *(int *)promOpio->oprom_array;

-    return *(int *)promOpio->oprom_array;

-}

-

-int

-promGetChild(int node)

-{

-    promOpio->oprom_size = sizeof(int);

-

-    if (!node || node == -1) return 0;

-    *(int *)promOpio->oprom_array = node;

-    if (ioctl(promFd, OPROMCHILD, promOpio) < 0)

-	return 0;

-    promCurrentNode = *(int *)promOpio->oprom_array;

-    return *(int *)promOpio->oprom_array;

-}

-

-char *

-promGetProperty(const char *prop, int *lenp)

-{

-    promOpio->oprom_size = MAX_VAL;

-

-    strcpy(promOpio->oprom_array, prop);

-    if (ioctl(promFd, OPROMGETPROP, promOpio) < 0)

-	return 0;

-    if (lenp) *lenp = promOpio->oprom_size;

-    return promOpio->oprom_array;

-}

-

-int

-promGetBool(const char *prop)

-{

-    promOpio->oprom_size = 0;

-

-    *(int *)promOpio->oprom_array = 0;

-    for (;;) {

-	promOpio->oprom_size = MAX_PROP;

-	if (ioctl(promFd, OPROMNXTPROP, promOpio) < 0)

-	    return 0;

-	if (!promOpio->oprom_size)

-	    return 0;

-	if (!strcmp(promOpio->oprom_array, prop))

-	    return 1;

-    }

-}

-

-#define PROM_NODE_SIBLING 0x01

-#define PROM_NODE_PREF    0x02

-#define PROM_NODE_SBUS    0x04

-#define PROM_NODE_EBUS    0x08

-#define PROM_NODE_PCI     0x10

-

-static int

-promSetNode(sbusPromNodePtr pnode)

-{

-    int node;

-

-    if (!pnode->node || pnode->node == -1)

-	return -1;

-    if (pnode->cookie[0] & PROM_NODE_SIBLING)

-	node = promGetSibling(pnode->cookie[1]);

-    else

-	node = promGetChild(pnode->cookie[1]);

-    if (pnode->node != node)

-	return -1;

-    return 0;

-}

-

-static void

-promIsP1275(void)

-{

-#ifdef linux

-    FILE *f;

-    char buffer[1024];

-

-    if (promP1275 != -1)

-	return;

-    promP1275 = 0;

-    f = fopen("/proc/cpuinfo","r");

-    if (!f) return;

-    while (fgets(buffer, 1024, f) != NULL)

-	if (!strncmp (buffer, "type", 4) && strstr (buffer, "sun4u")) {

-	    promP1275 = 1;

-	    break;

-	}

-    fclose(f);

-#elif defined(sun)

-    struct utsname buffer;

-

-    if ((uname(&buffer) >= 0) && !strcmp(buffer.machine, "sun4u"))

-	promP1275 = TRUE;

-    else

-	promP1275 = FALSE;

-#elif defined(__FreeBSD__)

-    promP1275 = TRUE;

-#else

-#error Missing promIsP1275() function for this OS

-#endif

-}

-

-void

-sparcPromClose(void)

-{

-    if (promOpenCount > 1) {

-	promOpenCount--;

-	return;

-    }

-    if (promFd != -1) {

-	close(promFd);

-	promFd = -1;

-    }

-    free(promOpio);

-    promOpio = NULL;

-    promOpenCount = 0;

-}

-

-int

-sparcPromInit(void)

-{

-    if (promOpenCount) {

-	promOpenCount++;

-	return 0;

-    }

-    promFd = open("/dev/openprom", O_RDONLY, 0);

-    if (promFd == -1)

-	return -1;

-    promOpio = (struct openpromio *)malloc(4096);

-    if (!promOpio) {

-	sparcPromClose();

-	return -1;

-    }

-    promRootNode = promGetSibling(0);

-    if (!promRootNode) {

-	sparcPromClose();

-	return -1;

-    }

-    promIsP1275();

-    promOpenCount++;

-

-    return 0;

-}

-

-char *

-sparcPromGetProperty(sbusPromNodePtr pnode, const char *prop, int *lenp)

-{

-    if (promSetNode(pnode))

-	return NULL;

-    return promGetProperty(prop, lenp);

-}

-

-int

-sparcPromGetBool(sbusPromNodePtr pnode, const char *prop)

-{

-    if (promSetNode(pnode))

-	return 0;

-    return promGetBool(prop);

-}

-

-static char *

-promWalkGetDriverName(int node, int oldnode)

-{

-    int nextnode;

-    int len;

-    char *prop;

-    int devId, i;

-

-    prop = promGetProperty("device_type", &len);

-    if (prop && (len > 0)) do {

-	if (!strcmp(prop, "display")) {

-	    prop = promGetProperty("name", &len);

-	    if (!prop || len <= 0)

-		break;

-	    while ((*prop >= 'A' && *prop <= 'Z') || *prop == ',')

-		prop++;

-	    for (i = 0; sbusDeviceTable[i].devId; i++)

-		if (!strcmp(prop, sbusDeviceTable[i].promName))

-		    break;

-	    devId = sbusDeviceTable[i].devId;

-	    if (!devId)

-		break;

-	    if (sbusDeviceTable[i].driverName)

-	    	return sbusDeviceTable[i].driverName;

-	}

-    } while (0);

-

-    nextnode = promGetChild(node);

-    if (nextnode) {

-	char *name;

-	name = promWalkGetDriverName(nextnode, node);

-	if (name)

-	    return name;

-    }

-

-    nextnode = promGetSibling(node);

-    if (nextnode)

-	return promWalkGetDriverName(nextnode, node);

-    return NULL;

-}

-

-char *

-sparcDriverName(void)

-{

-    char *name;

-

-    if (sparcPromInit() < 0)

-	    return NULL;

-    promGetSibling(0);

-    name = promWalkGetDriverName(promRootNode, 0);

-    sparcPromClose();

-    return name;

-}

-

-static void

-promWalkAssignNodes(int node, int oldnode, int flags, sbusDevicePtr *devicePtrs)

-{

-    int nextnode;

-    int len, sbus = flags & PROM_NODE_SBUS;

-    char *prop;

-    int devId, i, j;

-    sbusPromNode pNode, pNode2;

-

-    prop = promGetProperty("device_type", &len);

-    if (prop && (len > 0)) do {

-	if (!strcmp(prop, "display")) {

-	    prop = promGetProperty("name", &len);

-	    if (!prop || len <= 0)

-		break;

-	    while ((*prop >= 'A' && *prop <= 'Z') || *prop == ',')

-		prop++;

-	    for (i = 0; sbusDeviceTable[i].devId; i++)

-		if (!strcmp(prop, sbusDeviceTable[i].promName))

-		    break;

-	    devId = sbusDeviceTable[i].devId;

-	    if (!devId)

-		break;

-	    if (!sbus) {

-		if (devId == SBUS_DEVICE_FFB) {

-		    /*

-		     * All /SUNW,ffb outside of SBUS tree come before all

-		     * /SUNW,afb outside of SBUS tree in Linux.

-		     */

-		    if (!strcmp(prop, "afb"))

-			flags |= PROM_NODE_PREF;

-		} else if (devId != SBUS_DEVICE_CG14)

-		    break;

-	    }

-	    for (i = 0; i < 32; i++) {

-		if (!devicePtrs[i] || devicePtrs[i]->devId != devId)

-		    continue;

-		if (devicePtrs[i]->node.node) {

-		    if ((devicePtrs[i]->node.cookie[0] & ~PROM_NODE_SIBLING) <=

-			(flags & ~PROM_NODE_SIBLING))

-			continue;

-		    for (j = i + 1, pNode = devicePtrs[i]->node; j < 32; j++) {

-			if (!devicePtrs[j] || devicePtrs[j]->devId != devId)

-			    continue;

-			pNode2 = devicePtrs[j]->node;

-			devicePtrs[j]->node = pNode;

-			pNode = pNode2;

-		    }

-		}

-		devicePtrs[i]->node.node = node;

-		devicePtrs[i]->node.cookie[0] = flags;

-		devicePtrs[i]->node.cookie[1] = oldnode;

-		break;

-	    }

-	    break;

-	}

-    } while (0);

-

-    prop = promGetProperty("name", &len);

-    if (prop && len > 0) {

-	if (!strcmp(prop, "sbus") || !strcmp(prop, "sbi"))

-	    sbus = PROM_NODE_SBUS;

-    }

-

-    nextnode = promGetChild(node);

-    if (nextnode)

-	promWalkAssignNodes(nextnode, node, sbus, devicePtrs);

-

-    nextnode = promGetSibling(node);

-    if (nextnode)

-	promWalkAssignNodes(nextnode, node, PROM_NODE_SIBLING | sbus, devicePtrs);

-}

-

-void

-sparcPromAssignNodes(void)

-{

-    sbusDevicePtr psdp, *psdpp;

-    int n, holes = 0, i, j;

-    FILE *f;

-    sbusDevicePtr devicePtrs[32];

-

-    memset(devicePtrs, 0, sizeof(devicePtrs));

-    for (psdpp = xf86SbusInfo, n = 0; (psdp = *psdpp); psdpp++, n++) {

-	if (psdp->fbNum != n)

-	    holes = 1;

-	devicePtrs[psdp->fbNum] = psdp;

-    }

-    if (holes && (f = fopen("/proc/fb", "r")) != NULL) {

-	/* We could not open one of fb devices, check /proc/fb to see what

-	 * were the types of the cards missed. */

-	char buffer[64];

-	int fbNum, devId;

-	static struct {

-	    int devId;

-	    char *prefix;

-	} procFbPrefixes[] = {

-	    { SBUS_DEVICE_BW2, "BWtwo" },

-	    { SBUS_DEVICE_CG14, "CGfourteen" },

-	    { SBUS_DEVICE_CG6, "CGsix" },

-	    { SBUS_DEVICE_CG3, "CGthree" },

-	    { SBUS_DEVICE_FFB, "Creator" },

-	    { SBUS_DEVICE_FFB, "Elite 3D" },

-	    { SBUS_DEVICE_LEO, "Leo" },

-	    { SBUS_DEVICE_TCX, "TCX" },

-	    { 0, NULL },

-	};

-

-	while (fscanf(f, "%d %63s\n", &fbNum, buffer) == 2) {

-	    for (i = 0; procFbPrefixes[i].devId; i++)

-		if (! strncmp(procFbPrefixes[i].prefix, buffer,

-		      strlen(procFbPrefixes[i].prefix)))

-		    break;

-	    devId = procFbPrefixes[i].devId;

-	    if (! devId) continue;

-	    if (devicePtrs[fbNum]) {

-		if (devicePtrs[fbNum]->devId != devId)

-		    xf86ErrorF("Inconsistent /proc/fb with FBIOGATTR\n");

-	    } else if (!devicePtrs[fbNum]) {

-		devicePtrs[fbNum] = psdp = xnfcalloc(sizeof (sbusDevice), 1);

-		psdp->devId = devId;

-		psdp->fbNum = fbNum;

-		psdp->fd = -2;

-	    }

-	}

-	fclose(f);

-    }

-    promGetSibling(0);

-    promWalkAssignNodes(promRootNode, 0, PROM_NODE_PREF, devicePtrs);

-    for (i = 0, j = 0; i < 32; i++)

-	if (devicePtrs[i] && devicePtrs[i]->fbNum == -1)

-	    j++;

-    xf86SbusInfo = xnfrealloc(xf86SbusInfo, sizeof(psdp) * (n + j + 1));

-    for (i = 0, psdpp = xf86SbusInfo; i < 32; i++)

-	if (devicePtrs[i]) {

-	    if (devicePtrs[i]->fbNum == -1) {

-		memmove(psdpp + 1, psdpp, sizeof(psdpp) * (n + 1));

-		*psdpp = devicePtrs[i];

-	    } else

-		n--;

-	}

-}

-

-static char *

-promGetReg(int type)

-{

-    char *prop;

-    int len;

-    static char regstr[40];

-

-    regstr[0] = 0;

-    prop = promGetProperty("reg", &len);

-    if (prop && len >= 4) {

-	unsigned int *reg = (unsigned int *)prop;

-	if (!promP1275 || (type == PROM_NODE_SBUS) || (type == PROM_NODE_EBUS))

-	    sprintf (regstr, "@%x,%x", reg[0], reg[1]);

-	else if (type == PROM_NODE_PCI) {

-	    if ((reg[0] >> 8) & 7)

-		sprintf (regstr, "@%x,%x", (reg[0] >> 11) & 0x1f, (reg[0] >> 8) & 7);

-	    else

-		sprintf (regstr, "@%x", (reg[0] >> 11) & 0x1f);

-	} else if (len == 4)

-	    sprintf (regstr, "@%x", reg[0]);

-	else {

-	    unsigned int regs[2];

-

-	    /* Things get more complicated on UPA. If upa-portid exists,

-	       then address is @upa-portid,second-int-in-reg, otherwise

-	       it is @first-int-in-reg/16,second-int-in-reg (well, probably

-	       upa-portid always exists, but just to be safe). */

-	    memcpy (regs, reg, sizeof(regs));

-	    prop = promGetProperty("upa-portid", &len);

-	    if (prop && len == 4) {

-		reg = (unsigned int *)prop;

-		sprintf (regstr, "@%x,%x", reg[0], regs[1]);

-	    } else

-		sprintf (regstr, "@%x,%x", regs[0] >> 4, regs[1]);

-	}

-    }

-    return regstr;

-}

-

-static int

-promWalkNode2Pathname(char *path, int parent, int node, int searchNode, int type)

-{

-    int nextnode;

-    int len, ntype = type;

-    char *prop, *p;

-

-    prop = promGetProperty("name", &len);

-    *path = '/';

-    if (!prop || len <= 0)

-	return 0;

-    if ((!strcmp(prop, "sbus") || !strcmp(prop, "sbi")) && !type)

-	ntype = PROM_NODE_SBUS;

-    else if (!strcmp(prop, "ebus") && type == PROM_NODE_PCI)

-	ntype = PROM_NODE_EBUS;

-    else if (!strcmp(prop, "pci") && !type)

-	ntype = PROM_NODE_PCI;

-    strcpy (path + 1, prop);

-    p = promGetReg(type);

-    if (*p)

-	strcat (path, p);

-    if (node == searchNode)

-	return 1;

-    nextnode = promGetChild(node);

-    if (nextnode &&

-	promWalkNode2Pathname(strchr(path, 0), node, nextnode, searchNode, ntype))

-	return 1;

-    nextnode = promGetSibling(node);

-    if (nextnode &&

-	promWalkNode2Pathname(path, parent, nextnode, searchNode, type))

-	return 1;

-    return 0;

-}

-

-char *

-sparcPromNode2Pathname(sbusPromNodePtr pnode)

-{

-    char *ret;

-

-    if (!pnode->node) return NULL;

-    ret = malloc(4096);

-    if (!ret) return NULL;

-    if (promWalkNode2Pathname(ret, promRootNode, promGetChild(promRootNode), pnode->node, 0))

-	return ret;

-    free(ret);

-    return NULL;

-}

-

-static int

-promWalkPathname2Node(char *name, char *regstr, int parent, int type)

-{

-    int len, node, ret;

-    char *prop, *p;

-

-    for (;;) {

-	prop = promGetProperty("name", &len);

-	if (!prop || len <= 0)

-	    return 0;

-	if ((!strcmp(prop, "sbus") || !strcmp(prop, "sbi")) && !type)

-	    type = PROM_NODE_SBUS;

-	else if (!strcmp(prop, "ebus") && type == PROM_NODE_PCI)

-	    type = PROM_NODE_EBUS;

-	else if (!strcmp(prop, "pci") && !type)

-	    type = PROM_NODE_PCI;

-	for (node = promGetChild(parent); node; node = promGetSibling(node)) {

-	    prop = promGetProperty("name", &len);

-	    if (!prop || len <= 0)

-		continue;

-	    if (*name && strcmp(name, prop))

-		continue;

-	    if (*regstr) {

-		p = promGetReg(type);

-		if (! *p || strcmp(p + 1, regstr))

-		    continue;

-	    }

-	    break;

-	}

-	if (!node) {

-	    for (node = promGetChild(parent); node; node = promGetSibling(node)) {

-		ret = promWalkPathname2Node(name, regstr, node, type);

-		if (ret) return ret;

-	    }

-	    return 0;

-	}

-	name = strchr(regstr, 0) + 1;

-	if (! *name)

-	    return node;

-	p = strchr(name, '/');

-	if (p)

-	    *p = 0;

-	else

-	    p = strchr(name, 0);

-	regstr = strchr(name, '@');

-	if (regstr)

-	    *regstr++ = 0;

-	else

-	    regstr = p;

-	if (name == regstr)

-	    return 0;

-	parent = node;

-    }

-}

-

-int

-sparcPromPathname2Node(const char *pathName)

-{

-    int i;

-    char *name, *regstr, *p;

-

-    i = strlen(pathName);

-    name = malloc(i + 2);

-    if (! name) return 0;

-    strcpy (name, pathName);

-    name [i + 1] = 0;

-    if (name[0] != '/')

-	return 0;

-    p = strchr(name + 1, '/');

-    if (p)

-	*p = 0;

-    else

-	p = strchr(name, 0);

-    regstr = strchr(name, '@');

-    if (regstr)

-	*regstr++ = 0;

-    else

-	regstr = p;

-    if (name + 1 == regstr)

-	return 0;

-    promGetSibling(0);

-    i = promWalkPathname2Node(name + 1, regstr, promRootNode, 0);

-    free(name);

-    return i;

-}

-

-pointer

-xf86MapSbusMem(sbusDevicePtr psdp, unsigned long offset, unsigned long size)

-{

-    pointer ret;

-    unsigned long pagemask = getpagesize() - 1;

-    unsigned long off = offset & ~pagemask;

-    unsigned long len = ((offset + size + pagemask) & ~pagemask) - off;

-

-    if (psdp->fd == -1) {

-	psdp->fd = open(psdp->device, O_RDWR);

-	if (psdp->fd == -1)

-	    return NULL;

-    } else if (psdp->fd < 0)

-	return NULL;

-

-    ret = (pointer) mmap (NULL, len, PROT_READ | PROT_WRITE, MAP_PRIVATE,

-			  psdp->fd, off);

-    if (ret == (pointer) -1) {

-	ret = (pointer) mmap (NULL, len, PROT_READ | PROT_WRITE, MAP_SHARED,

-			      psdp->fd, off);

-    }

-    if (ret == (pointer) -1)

-	return NULL;

-

-    return (char *)ret + (offset - off);

-}

-

-void

-xf86UnmapSbusMem(sbusDevicePtr psdp, pointer addr, unsigned long size)

-{

-    unsigned long mask = getpagesize() - 1;

-    unsigned long base = (unsigned long)addr & ~mask;

-    unsigned long len = (((unsigned long)addr + size + mask) & ~mask) - base;

-

-    munmap ((pointer)base, len);

-}

-

-/* Tell OS that we are driving the HW cursor ourselves. */

-void

-xf86SbusHideOsHwCursor(sbusDevicePtr psdp)

-{

-    struct fbcursor fbcursor;

-    unsigned char zeros[8];

-

-    memset(&fbcursor, 0, sizeof(fbcursor));

-    memset(&zeros, 0, sizeof(zeros));

-    fbcursor.cmap.count = 2;

-    fbcursor.cmap.red = zeros;

-    fbcursor.cmap.green = zeros;

-    fbcursor.cmap.blue = zeros;

-    fbcursor.image = (char *)zeros;

-    fbcursor.mask = (char *)zeros;

-    fbcursor.size.x = 32;

-    fbcursor.size.y = 1;

-    fbcursor.set = FB_CUR_SETALL;

-    ioctl(psdp->fd, FBIOSCURSOR, &fbcursor);

-}

-

-/* Set HW cursor colormap. */

-void

-xf86SbusSetOsHwCursorCmap(sbusDevicePtr psdp, int bg, int fg)

-{

-    struct fbcursor fbcursor;

-    unsigned char red[2], green[2], blue[2];

-

-    memset(&fbcursor, 0, sizeof(fbcursor));

-    red[0] = bg >> 16;

-    green[0] = bg >> 8;

-    blue[0] = bg;

-    red[1] = fg >> 16;

-    green[1] = fg >> 8;

-    blue[1] = fg;

-    fbcursor.cmap.count = 2;

-    fbcursor.cmap.red = red;

-    fbcursor.cmap.green = green;

-    fbcursor.cmap.blue = blue;

-    fbcursor.set = FB_CUR_SETCMAP;

-    ioctl(psdp->fd, FBIOSCURSOR, &fbcursor);

-}

+/*
+ * SBUS and OpenPROM access functions.
+ *
+ * Copyright (C) 2000 Jakub Jelinek (jakub@redhat.com)
+ *
+ * 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
+ * JAKUB JELINEK 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.
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#ifdef sun
+#include <sys/utsname.h>
+#endif
+#include "xf86.h"
+#include "xf86Priv.h"
+#include "xf86_OSlib.h"
+
+#include "xf86sbusBus.h"
+#include "xf86Sbus.h"
+
+int promRootNode;
+
+static int promFd = -1;
+static int promCurrentNode;
+static int promOpenCount = 0;
+static int promP1275 = -1;
+#define MAX_PROP	128
+#define MAX_VAL		(4096-128-4)
+static struct openpromio *promOpio;
+
+sbusDevicePtr *xf86SbusInfo = NULL;
+
+struct sbus_devtable sbusDeviceTable[] = {
+    { SBUS_DEVICE_BW2, FBTYPE_SUN2BW, "bwtwo", "sunbw2", "Sun Monochrome (bwtwo)" },
+    { SBUS_DEVICE_CG2, FBTYPE_SUN2COLOR, "cgtwo", NULL, "Sun Color2 (cgtwo)" },
+    { SBUS_DEVICE_CG3, FBTYPE_SUN3COLOR, "cgthree", "suncg3", "Sun Color3 (cgthree)" },
+    { SBUS_DEVICE_CG4, FBTYPE_SUN4COLOR, "cgfour", NULL, "Sun Color4 (cgfour)" },
+    { SBUS_DEVICE_CG6, FBTYPE_SUNFAST_COLOR, "cgsix", "suncg6", "Sun GX" },
+    { SBUS_DEVICE_CG8, FBTYPE_MEMCOLOR, "cgeight", NULL, "Sun CG8/RasterOps" },
+    { SBUS_DEVICE_CG12, FBTYPE_SUNGP3, "cgtwelve", NULL, "Sun GS (cgtwelve)" },
+    { SBUS_DEVICE_CG14, FBTYPE_MDICOLOR, "cgfourteen", "suncg14", "Sun SX" },
+    { SBUS_DEVICE_GT, FBTYPE_SUNGT, "gt", NULL, "Sun Graphics Tower" },
+    { SBUS_DEVICE_MGX, -1, "mgx", NULL, "Quantum 3D MGXplus" },
+    { SBUS_DEVICE_LEO, FBTYPE_SUNLEO, "leo", "sunleo", "Sun ZX or Turbo ZX" },
+    { SBUS_DEVICE_TCX, FBTYPE_TCXCOLOR, "tcx", "suntcx", "Sun TCX" },
+    { SBUS_DEVICE_FFB, FBTYPE_CREATOR, "ffb", "sunffb", "Sun FFB" },
+    { SBUS_DEVICE_FFB, FBTYPE_CREATOR, "afb", "sunffb", "Sun Elite3D" },
+    { 0, 0, NULL }
+};
+
+int
+promGetSibling(int node)
+{
+    promOpio->oprom_size = sizeof(int);
+
+    if (node == -1) return 0;
+    *(int *)promOpio->oprom_array = node;
+    if (ioctl(promFd, OPROMNEXT, promOpio) < 0)
+	return 0;
+    promCurrentNode = *(int *)promOpio->oprom_array;
+    return *(int *)promOpio->oprom_array;
+}
+
+int
+promGetChild(int node)
+{
+    promOpio->oprom_size = sizeof(int);
+
+    if (!node || node == -1) return 0;
+    *(int *)promOpio->oprom_array = node;
+    if (ioctl(promFd, OPROMCHILD, promOpio) < 0)
+	return 0;
+    promCurrentNode = *(int *)promOpio->oprom_array;
+    return *(int *)promOpio->oprom_array;
+}
+
+char *
+promGetProperty(const char *prop, int *lenp)
+{
+    promOpio->oprom_size = MAX_VAL;
+
+    strcpy(promOpio->oprom_array, prop);
+    if (ioctl(promFd, OPROMGETPROP, promOpio) < 0)
+	return 0;
+    if (lenp) *lenp = promOpio->oprom_size;
+    return promOpio->oprom_array;
+}
+
+int
+promGetBool(const char *prop)
+{
+    promOpio->oprom_size = 0;
+
+    *(int *)promOpio->oprom_array = 0;
+    for (;;) {
+	promOpio->oprom_size = MAX_PROP;
+	if (ioctl(promFd, OPROMNXTPROP, promOpio) < 0)
+	    return 0;
+	if (!promOpio->oprom_size)
+	    return 0;
+	if (!strcmp(promOpio->oprom_array, prop))
+	    return 1;
+    }
+}
+
+#define PROM_NODE_SIBLING 0x01
+#define PROM_NODE_PREF    0x02
+#define PROM_NODE_SBUS    0x04
+#define PROM_NODE_EBUS    0x08
+#define PROM_NODE_PCI     0x10
+
+static int
+promSetNode(sbusPromNodePtr pnode)
+{
+    int node;
+
+    if (!pnode->node || pnode->node == -1)
+	return -1;
+    if (pnode->cookie[0] & PROM_NODE_SIBLING)
+	node = promGetSibling(pnode->cookie[1]);
+    else
+	node = promGetChild(pnode->cookie[1]);
+    if (pnode->node != node)
+	return -1;
+    return 0;
+}
+
+static void
+promIsP1275(void)
+{
+#ifdef linux
+    FILE *f;
+    char buffer[1024];
+
+    if (promP1275 != -1)
+	return;
+    promP1275 = 0;
+    f = fopen("/proc/cpuinfo","r");
+    if (!f) return;
+    while (fgets(buffer, 1024, f) != NULL)
+	if (!strncmp (buffer, "type", 4) && strstr (buffer, "sun4u")) {
+	    promP1275 = 1;
+	    break;
+	}
+    fclose(f);
+#elif defined(sun)
+    struct utsname buffer;
+
+    if ((uname(&buffer) >= 0) && !strcmp(buffer.machine, "sun4u"))
+	promP1275 = TRUE;
+    else
+	promP1275 = FALSE;
+#elif defined(__FreeBSD__)
+    promP1275 = TRUE;
+#else
+#error Missing promIsP1275() function for this OS
+#endif
+}
+
+void
+sparcPromClose(void)
+{
+    if (promOpenCount > 1) {
+	promOpenCount--;
+	return;
+    }
+    if (promFd != -1) {
+	close(promFd);
+	promFd = -1;
+    }
+    free(promOpio);
+    promOpio = NULL;
+    promOpenCount = 0;
+}
+
+int
+sparcPromInit(void)
+{
+    if (promOpenCount) {
+	promOpenCount++;
+	return 0;
+    }
+    promFd = open("/dev/openprom", O_RDONLY, 0);
+    if (promFd == -1)
+	return -1;
+    promOpio = (struct openpromio *)malloc(4096);
+    if (!promOpio) {
+	sparcPromClose();
+	return -1;
+    }
+    promRootNode = promGetSibling(0);
+    if (!promRootNode) {
+	sparcPromClose();
+	return -1;
+    }
+    promIsP1275();
+    promOpenCount++;
+
+    return 0;
+}
+
+char *
+sparcPromGetProperty(sbusPromNodePtr pnode, const char *prop, int *lenp)
+{
+    if (promSetNode(pnode))
+	return NULL;
+    return promGetProperty(prop, lenp);
+}
+
+int
+sparcPromGetBool(sbusPromNodePtr pnode, const char *prop)
+{
+    if (promSetNode(pnode))
+	return 0;
+    return promGetBool(prop);
+}
+
+static char *
+promWalkGetDriverName(int node, int oldnode)
+{
+    int nextnode;
+    int len;
+    char *prop;
+    int devId, i;
+
+    prop = promGetProperty("device_type", &len);
+    if (prop && (len > 0)) do {
+	if (!strcmp(prop, "display")) {
+	    prop = promGetProperty("name", &len);
+	    if (!prop || len <= 0)
+		break;
+	    while ((*prop >= 'A' && *prop <= 'Z') || *prop == ',')
+		prop++;
+	    for (i = 0; sbusDeviceTable[i].devId; i++)
+		if (!strcmp(prop, sbusDeviceTable[i].promName))
+		    break;
+	    devId = sbusDeviceTable[i].devId;
+	    if (!devId)
+		break;
+	    if (sbusDeviceTable[i].driverName)
+	    	return sbusDeviceTable[i].driverName;
+	}
+    } while (0);
+
+    nextnode = promGetChild(node);
+    if (nextnode) {
+	char *name;
+	name = promWalkGetDriverName(nextnode, node);
+	if (name)
+	    return name;
+    }
+
+    nextnode = promGetSibling(node);
+    if (nextnode)
+	return promWalkGetDriverName(nextnode, node);
+    return NULL;
+}
+
+char *
+sparcDriverName(void)
+{
+    char *name;
+
+    if (sparcPromInit() < 0)
+	    return NULL;
+    promGetSibling(0);
+    name = promWalkGetDriverName(promRootNode, 0);
+    sparcPromClose();
+    return name;
+}
+
+static void
+promWalkAssignNodes(int node, int oldnode, int flags, sbusDevicePtr *devicePtrs)
+{
+    int nextnode;
+    int len, sbus = flags & PROM_NODE_SBUS;
+    char *prop;
+    int devId, i, j;
+    sbusPromNode pNode, pNode2;
+
+    prop = promGetProperty("device_type", &len);
+    if (prop && (len > 0)) do {
+	if (!strcmp(prop, "display")) {
+	    prop = promGetProperty("name", &len);
+	    if (!prop || len <= 0)
+		break;
+	    while ((*prop >= 'A' && *prop <= 'Z') || *prop == ',')
+		prop++;
+	    for (i = 0; sbusDeviceTable[i].devId; i++)
+		if (!strcmp(prop, sbusDeviceTable[i].promName))
+		    break;
+	    devId = sbusDeviceTable[i].devId;
+	    if (!devId)
+		break;
+	    if (!sbus) {
+		if (devId == SBUS_DEVICE_FFB) {
+		    /*
+		     * All /SUNW,ffb outside of SBUS tree come before all
+		     * /SUNW,afb outside of SBUS tree in Linux.
+		     */
+		    if (!strcmp(prop, "afb"))
+			flags |= PROM_NODE_PREF;
+		} else if (devId != SBUS_DEVICE_CG14)
+		    break;
+	    }
+	    for (i = 0; i < 32; i++) {
+		if (!devicePtrs[i] || devicePtrs[i]->devId != devId)
+		    continue;
+		if (devicePtrs[i]->node.node) {
+		    if ((devicePtrs[i]->node.cookie[0] & ~PROM_NODE_SIBLING) <=
+			(flags & ~PROM_NODE_SIBLING))
+			continue;
+		    for (j = i + 1, pNode = devicePtrs[i]->node; j < 32; j++) {
+			if (!devicePtrs[j] || devicePtrs[j]->devId != devId)
+			    continue;
+			pNode2 = devicePtrs[j]->node;
+			devicePtrs[j]->node = pNode;
+			pNode = pNode2;
+		    }
+		}
+		devicePtrs[i]->node.node = node;
+		devicePtrs[i]->node.cookie[0] = flags;
+		devicePtrs[i]->node.cookie[1] = oldnode;
+		break;
+	    }
+	    break;
+	}
+    } while (0);
+
+    prop = promGetProperty("name", &len);
+    if (prop && len > 0) {
+	if (!strcmp(prop, "sbus") || !strcmp(prop, "sbi"))
+	    sbus = PROM_NODE_SBUS;
+    }
+
+    nextnode = promGetChild(node);
+    if (nextnode)
+	promWalkAssignNodes(nextnode, node, sbus, devicePtrs);
+
+    nextnode = promGetSibling(node);
+    if (nextnode)
+	promWalkAssignNodes(nextnode, node, PROM_NODE_SIBLING | sbus, devicePtrs);
+}
+
+void
+sparcPromAssignNodes(void)
+{
+    sbusDevicePtr psdp, *psdpp;
+    int n, holes = 0, i, j;
+    FILE *f;
+    sbusDevicePtr devicePtrs[32];
+
+    memset(devicePtrs, 0, sizeof(devicePtrs));
+    for (psdpp = xf86SbusInfo, n = 0; (psdp = *psdpp); psdpp++, n++) {
+	if (psdp->fbNum != n)
+	    holes = 1;
+	devicePtrs[psdp->fbNum] = psdp;
+    }
+    if (holes && (f = fopen("/proc/fb", "r")) != NULL) {
+	/* We could not open one of fb devices, check /proc/fb to see what
+	 * were the types of the cards missed. */
+	char buffer[64];
+	int fbNum, devId;
+	static struct {
+	    int devId;
+	    char *prefix;
+	} procFbPrefixes[] = {
+	    { SBUS_DEVICE_BW2, "BWtwo" },
+	    { SBUS_DEVICE_CG14, "CGfourteen" },
+	    { SBUS_DEVICE_CG6, "CGsix" },
+	    { SBUS_DEVICE_CG3, "CGthree" },
+	    { SBUS_DEVICE_FFB, "Creator" },
+	    { SBUS_DEVICE_FFB, "Elite 3D" },
+	    { SBUS_DEVICE_LEO, "Leo" },
+	    { SBUS_DEVICE_TCX, "TCX" },
+	    { 0, NULL },
+	};
+
+	while (fscanf(f, "%d %63s\n", &fbNum, buffer) == 2) {
+	    for (i = 0; procFbPrefixes[i].devId; i++)
+		if (! strncmp(procFbPrefixes[i].prefix, buffer,
+		      strlen(procFbPrefixes[i].prefix)))
+		    break;
+	    devId = procFbPrefixes[i].devId;
+	    if (! devId) continue;
+	    if (devicePtrs[fbNum]) {
+		if (devicePtrs[fbNum]->devId != devId)
+		    xf86ErrorF("Inconsistent /proc/fb with FBIOGATTR\n");
+	    } else if (!devicePtrs[fbNum]) {
+		devicePtrs[fbNum] = psdp = xnfcalloc(sizeof (sbusDevice), 1);
+		psdp->devId = devId;
+		psdp->fbNum = fbNum;
+		psdp->fd = -2;
+	    }
+	}
+	fclose(f);
+    }
+    promGetSibling(0);
+    promWalkAssignNodes(promRootNode, 0, PROM_NODE_PREF, devicePtrs);
+    for (i = 0, j = 0; i < 32; i++)
+	if (devicePtrs[i] && devicePtrs[i]->fbNum == -1)
+	    j++;
+    xf86SbusInfo = xnfrealloc(xf86SbusInfo, sizeof(psdp) * (n + j + 1));
+    for (i = 0, psdpp = xf86SbusInfo; i < 32; i++)
+	if (devicePtrs[i]) {
+	    if (devicePtrs[i]->fbNum == -1) {
+		memmove(psdpp + 1, psdpp, sizeof(psdpp) * (n + 1));
+		*psdpp = devicePtrs[i];
+	    } else
+		n--;
+	}
+}
+
+static char *
+promGetReg(int type)
+{
+    char *prop;
+    int len;
+    static char regstr[40];
+
+    regstr[0] = 0;
+    prop = promGetProperty("reg", &len);
+    if (prop && len >= 4) {
+	unsigned int *reg = (unsigned int *)prop;
+	if (!promP1275 || (type == PROM_NODE_SBUS) || (type == PROM_NODE_EBUS))
+	    snprintf (regstr, sizeof(regstr), "@%x,%x", reg[0], reg[1]);
+	else if (type == PROM_NODE_PCI) {
+	    if ((reg[0] >> 8) & 7)
+		snprintf (regstr, sizeof(regstr), "@%x,%x", (reg[0] >> 11) & 0x1f, (reg[0] >> 8) & 7);
+	    else
+		snprintf (regstr, sizeof(regstr), "@%x", (reg[0] >> 11) & 0x1f);
+	} else if (len == 4)
+	    snprintf (regstr, sizeof(regstr), "@%x", reg[0]);
+	else {
+	    unsigned int regs[2];
+
+	    /* Things get more complicated on UPA. If upa-portid exists,
+	       then address is @upa-portid,second-int-in-reg, otherwise
+	       it is @first-int-in-reg/16,second-int-in-reg (well, probably
+	       upa-portid always exists, but just to be safe). */
+	    memcpy (regs, reg, sizeof(regs));
+	    prop = promGetProperty("upa-portid", &len);
+	    if (prop && len == 4) {
+		reg = (unsigned int *)prop;
+		snprintf (regstr, sizeof(regstr), "@%x,%x", reg[0], regs[1]);
+	    } else
+		snprintf (regstr, sizeof(regstr), "@%x,%x", regs[0] >> 4, regs[1]);
+	}
+    }
+    return regstr;
+}
+
+static int
+promWalkNode2Pathname(char *path, int parent, int node, int searchNode, int type)
+{
+    int nextnode;
+    int len, ntype = type;
+    char *prop, *p;
+
+    prop = promGetProperty("name", &len);
+    *path = '/';
+    if (!prop || len <= 0)
+	return 0;
+    if ((!strcmp(prop, "sbus") || !strcmp(prop, "sbi")) && !type)
+	ntype = PROM_NODE_SBUS;
+    else if (!strcmp(prop, "ebus") && type == PROM_NODE_PCI)
+	ntype = PROM_NODE_EBUS;
+    else if (!strcmp(prop, "pci") && !type)
+	ntype = PROM_NODE_PCI;
+    strcpy (path + 1, prop);
+    p = promGetReg(type);
+    if (*p)
+	strcat (path, p);
+    if (node == searchNode)
+	return 1;
+    nextnode = promGetChild(node);
+    if (nextnode &&
+	promWalkNode2Pathname(strchr(path, 0), node, nextnode, searchNode, ntype))
+	return 1;
+    nextnode = promGetSibling(node);
+    if (nextnode &&
+	promWalkNode2Pathname(path, parent, nextnode, searchNode, type))
+	return 1;
+    return 0;
+}
+
+char *
+sparcPromNode2Pathname(sbusPromNodePtr pnode)
+{
+    char *ret;
+
+    if (!pnode->node) return NULL;
+    ret = malloc(4096);
+    if (!ret) return NULL;
+    if (promWalkNode2Pathname(ret, promRootNode, promGetChild(promRootNode), pnode->node, 0))
+	return ret;
+    free(ret);
+    return NULL;
+}
+
+static int
+promWalkPathname2Node(char *name, char *regstr, int parent, int type)
+{
+    int len, node, ret;
+    char *prop, *p;
+
+    for (;;) {
+	prop = promGetProperty("name", &len);
+	if (!prop || len <= 0)
+	    return 0;
+	if ((!strcmp(prop, "sbus") || !strcmp(prop, "sbi")) && !type)
+	    type = PROM_NODE_SBUS;
+	else if (!strcmp(prop, "ebus") && type == PROM_NODE_PCI)
+	    type = PROM_NODE_EBUS;
+	else if (!strcmp(prop, "pci") && !type)
+	    type = PROM_NODE_PCI;
+	for (node = promGetChild(parent); node; node = promGetSibling(node)) {
+	    prop = promGetProperty("name", &len);
+	    if (!prop || len <= 0)
+		continue;
+	    if (*name && strcmp(name, prop))
+		continue;
+	    if (*regstr) {
+		p = promGetReg(type);
+		if (! *p || strcmp(p + 1, regstr))
+		    continue;
+	    }
+	    break;
+	}
+	if (!node) {
+	    for (node = promGetChild(parent); node; node = promGetSibling(node)) {
+		ret = promWalkPathname2Node(name, regstr, node, type);
+		if (ret) return ret;
+	    }
+	    return 0;
+	}
+	name = strchr(regstr, 0) + 1;
+	if (! *name)
+	    return node;
+	p = strchr(name, '/');
+	if (p)
+	    *p = 0;
+	else
+	    p = strchr(name, 0);
+	regstr = strchr(name, '@');
+	if (regstr)
+	    *regstr++ = 0;
+	else
+	    regstr = p;
+	if (name == regstr)
+	    return 0;
+	parent = node;
+    }
+}
+
+int
+sparcPromPathname2Node(const char *pathName)
+{
+    int i;
+    char *name, *regstr, *p;
+
+    i = strlen(pathName);
+    name = malloc(i + 2);
+    if (! name) return 0;
+    strcpy (name, pathName);
+    name [i + 1] = 0;
+    if (name[0] != '/')
+	return 0;
+    p = strchr(name + 1, '/');
+    if (p)
+	*p = 0;
+    else
+	p = strchr(name, 0);
+    regstr = strchr(name, '@');
+    if (regstr)
+	*regstr++ = 0;
+    else
+	regstr = p;
+    if (name + 1 == regstr)
+	return 0;
+    promGetSibling(0);
+    i = promWalkPathname2Node(name + 1, regstr, promRootNode, 0);
+    free(name);
+    return i;
+}
+
+pointer
+xf86MapSbusMem(sbusDevicePtr psdp, unsigned long offset, unsigned long size)
+{
+    pointer ret;
+    unsigned long pagemask = getpagesize() - 1;
+    unsigned long off = offset & ~pagemask;
+    unsigned long len = ((offset + size + pagemask) & ~pagemask) - off;
+
+    if (psdp->fd == -1) {
+	psdp->fd = open(psdp->device, O_RDWR);
+	if (psdp->fd == -1)
+	    return NULL;
+    } else if (psdp->fd < 0)
+	return NULL;
+
+    ret = (pointer) mmap (NULL, len, PROT_READ | PROT_WRITE, MAP_PRIVATE,
+			  psdp->fd, off);
+    if (ret == (pointer) -1) {
+	ret = (pointer) mmap (NULL, len, PROT_READ | PROT_WRITE, MAP_SHARED,
+			      psdp->fd, off);
+    }
+    if (ret == (pointer) -1)
+	return NULL;
+
+    return (char *)ret + (offset - off);
+}
+
+void
+xf86UnmapSbusMem(sbusDevicePtr psdp, pointer addr, unsigned long size)
+{
+    unsigned long mask = getpagesize() - 1;
+    unsigned long base = (unsigned long)addr & ~mask;
+    unsigned long len = (((unsigned long)addr + size + mask) & ~mask) - base;
+
+    munmap ((pointer)base, len);
+}
+
+/* Tell OS that we are driving the HW cursor ourselves. */
+void
+xf86SbusHideOsHwCursor(sbusDevicePtr psdp)
+{
+    struct fbcursor fbcursor;
+    unsigned char zeros[8];
+
+    memset(&fbcursor, 0, sizeof(fbcursor));
+    memset(&zeros, 0, sizeof(zeros));
+    fbcursor.cmap.count = 2;
+    fbcursor.cmap.red = zeros;
+    fbcursor.cmap.green = zeros;
+    fbcursor.cmap.blue = zeros;
+    fbcursor.image = (char *)zeros;
+    fbcursor.mask = (char *)zeros;
+    fbcursor.size.x = 32;
+    fbcursor.size.y = 1;
+    fbcursor.set = FB_CUR_SETALL;
+    ioctl(psdp->fd, FBIOSCURSOR, &fbcursor);
+}
+
+/* Set HW cursor colormap. */
+void
+xf86SbusSetOsHwCursorCmap(sbusDevicePtr psdp, int bg, int fg)
+{
+    struct fbcursor fbcursor;
+    unsigned char red[2], green[2], blue[2];
+
+    memset(&fbcursor, 0, sizeof(fbcursor));
+    red[0] = bg >> 16;
+    green[0] = bg >> 8;
+    blue[0] = bg;
+    red[1] = fg >> 16;
+    green[1] = fg >> 8;
+    blue[1] = fg;
+    fbcursor.cmap.count = 2;
+    fbcursor.cmap.red = red;
+    fbcursor.cmap.green = green;
+    fbcursor.cmap.blue = blue;
+    fbcursor.set = FB_CUR_SETCMAP;
+    ioctl(psdp->fd, FBIOSCURSOR, &fbcursor);
+}
diff --git a/xorg-server/hw/xfree86/os-support/linux/lnx_init.c b/xorg-server/hw/xfree86/os-support/linux/lnx_init.c
index f18271f38..5f3e3a9fb 100644
--- a/xorg-server/hw/xfree86/os-support/linux/lnx_init.c
+++ b/xorg-server/hw/xfree86/os-support/linux/lnx_init.c
@@ -146,7 +146,7 @@ xf86OpenConsole(void)
 
         i=0;
         while (vcs[i] != NULL) {
-            sprintf(vtname, vcs[i], xf86Info.vtno); /* /dev/tty1-64 */
+            snprintf(vtname, sizeof(vtname), vcs[i], xf86Info.vtno); /* /dev/tty1-64 */
      	    if ((xf86Info.consoleFd = open(vtname, O_RDWR|O_NDELAY, 0)) >= 0)
 		break;
             i++;
diff --git a/xorg-server/hw/xfree86/os-support/solaris/sun_agp.c b/xorg-server/hw/xfree86/os-support/solaris/sun_agp.c
index 0331ac1c5..8c4e9f5c1 100644
--- a/xorg-server/hw/xfree86/os-support/solaris/sun_agp.c
+++ b/xorg-server/hw/xfree86/os-support/solaris/sun_agp.c
@@ -233,7 +233,7 @@ xf86DeallocateGARTMemory(int screenNum, int key)
 	if (!GARTInit(screenNum) || (acquiredScreen != screenNum))
 		return FALSE;
 
- 	if (ioctl(gartFd, AGPIOC_DEALLOCATE, (int *)key) != 0) {
+	if (ioctl(gartFd, AGPIOC_DEALLOCATE, (int *)(uintptr_t)key) != 0) {
 		xf86DrvMsg(screenNum, X_WARNING, "xf86DeAllocateGARTMemory: "
 			   "deallocation of gart memory with key %d failed\n"
 			   "\t(%s)\n", key, strerror(errno));
diff --git a/xorg-server/hw/xfree86/parser/Flags.c b/xorg-server/hw/xfree86/parser/Flags.c
index f0a61707b..87fd3edf6 100644
--- a/xorg-server/hw/xfree86/parser/Flags.c
+++ b/xorg-server/hw/xfree86/parser/Flags.c
@@ -330,7 +330,7 @@ xf86findOption (XF86OptionPtr list, const char *name)
  * returned.  If the option is not found, a NULL is returned.
  */
 
-char *
+const char *
 xf86findOptionValue (XF86OptionPtr list, const char *name)
 {
 	XF86OptionPtr p = xf86findOption (list, name);
diff --git a/xorg-server/hw/xfree86/parser/InputClass.c b/xorg-server/hw/xfree86/parser/InputClass.c
index 3f801700e..2cdc9125a 100644
--- a/xorg-server/hw/xfree86/parser/InputClass.c
+++ b/xorg-server/hw/xfree86/parser/InputClass.c
@@ -128,60 +128,70 @@ xf86parseInputClassSection(void)
                 Error(QUOTE_MSG, "MatchProduct");
             add_group_entry(&ptr->match_product,
                             xstrtokenize(val.str, TOKEN_SEP));
+            free(val.str);
             break;
         case MATCH_VENDOR:
             if (xf86getSubToken(&(ptr->comment)) != STRING)
                 Error(QUOTE_MSG, "MatchVendor");
             add_group_entry(&ptr->match_vendor,
                             xstrtokenize(val.str, TOKEN_SEP));
+            free(val.str);
             break;
         case MATCH_DEVICE_PATH:
             if (xf86getSubToken(&(ptr->comment)) != STRING)
                 Error(QUOTE_MSG, "MatchDevicePath");
             add_group_entry(&ptr->match_device,
                             xstrtokenize(val.str, TOKEN_SEP));
+            free(val.str);
             break;
         case MATCH_OS:
             if (xf86getSubToken(&(ptr->comment)) != STRING)
                 Error(QUOTE_MSG, "MatchOS");
             add_group_entry(&ptr->match_os,
                             xstrtokenize(val.str, TOKEN_SEP));
+            free(val.str);
             break;
         case MATCH_PNPID:
             if (xf86getSubToken(&(ptr->comment)) != STRING)
                 Error(QUOTE_MSG, "MatchPnPID");
             add_group_entry(&ptr->match_pnpid,
                             xstrtokenize(val.str, TOKEN_SEP));
+            free(val.str);
             break;
         case MATCH_USBID:
             if (xf86getSubToken(&(ptr->comment)) != STRING)
                 Error(QUOTE_MSG, "MatchUSBID");
             add_group_entry(&ptr->match_usbid,
                             xstrtokenize(val.str, TOKEN_SEP));
+            free(val.str);
             break;
         case MATCH_DRIVER:
             if (xf86getSubToken(&(ptr->comment)) != STRING)
                 Error(QUOTE_MSG, "MatchDriver");
             add_group_entry(&ptr->match_driver,
                             xstrtokenize(val.str, TOKEN_SEP));
+            free(val.str);
             break;
         case MATCH_TAG:
             if (xf86getSubToken(&(ptr->comment)) != STRING)
                 Error(QUOTE_MSG, "MatchTag");
             add_group_entry(&ptr->match_tag,
                             xstrtokenize(val.str, TOKEN_SEP));
+            free(val.str);
             break;
         case MATCH_LAYOUT:
             if (xf86getSubToken(&(ptr->comment)) != STRING)
                 Error(QUOTE_MSG, "MatchLayout");
             add_group_entry(&ptr->match_layout,
                             xstrtokenize(val.str, TOKEN_SEP));
+            free(val.str);
             break;
         case MATCH_IS_KEYBOARD:
             if (xf86getSubToken(&(ptr->comment)) != STRING)
                 Error(QUOTE_MSG, "MatchIsKeyboard");
             ptr->is_keyboard.set = xf86getBoolValue(&ptr->is_keyboard.val,
                                                     val.str);
+            free(val.str);
             if (!ptr->is_keyboard.set)
                 Error(BOOL_MSG, "MatchIsKeyboard");
             break;
@@ -190,6 +200,7 @@ xf86parseInputClassSection(void)
                 Error(QUOTE_MSG, "MatchIsPointer");
             ptr->is_pointer.set = xf86getBoolValue(&ptr->is_pointer.val,
                                                    val.str);
+            free(val.str);
             if (!ptr->is_pointer.set)
                 Error(BOOL_MSG, "MatchIsPointer");
             break;
@@ -198,6 +209,7 @@ xf86parseInputClassSection(void)
                 Error(QUOTE_MSG, "MatchIsJoystick");
             ptr->is_joystick.set = xf86getBoolValue(&ptr->is_joystick.val,
                                                     val.str);
+            free(val.str);
             if (!ptr->is_joystick.set)
                 Error(BOOL_MSG, "MatchIsJoystick");
             break;
@@ -206,6 +218,7 @@ xf86parseInputClassSection(void)
                 Error(QUOTE_MSG, "MatchIsTablet");
             ptr->is_tablet.set = xf86getBoolValue(&ptr->is_tablet.val,
                                                   val.str);
+            free(val.str);
             if (!ptr->is_tablet.set)
                 Error(BOOL_MSG, "MatchIsTablet");
             break;
@@ -214,6 +227,7 @@ xf86parseInputClassSection(void)
                 Error(QUOTE_MSG, "MatchIsTouchpad");
             ptr->is_touchpad.set = xf86getBoolValue(&ptr->is_touchpad.val,
                                                     val.str);
+            free(val.str);
             if (!ptr->is_touchpad.set)
                 Error(BOOL_MSG, "MatchIsTouchpad");
             break;
@@ -222,6 +236,7 @@ xf86parseInputClassSection(void)
                 Error(QUOTE_MSG, "MatchIsTouchscreen");
             ptr->is_touchscreen.set = xf86getBoolValue(&ptr->is_touchscreen.val,
                                                        val.str);
+            free(val.str);
             if (!ptr->is_touchscreen.set)
                 Error(BOOL_MSG, "MatchIsTouchscreen");
             break;
diff --git a/xorg-server/hw/xfree86/parser/configProcs.h b/xorg-server/hw/xfree86/parser/configProcs.h
index 7d8a8e53a..114cdfe33 100644
--- a/xorg-server/hw/xfree86/parser/configProcs.h
+++ b/xorg-server/hw/xfree86/parser/configProcs.h
@@ -95,9 +95,9 @@ int xf86getSubToken(char **comment);
 int xf86getSubTokenWithTab(char **comment, xf86ConfigSymTabRec *tab);
 void xf86unGetToken(int token);
 char *xf86tokenString(void);
-void xf86parseError(char *format, ...);
-void xf86validationError(char *format, ...);
-void xf86setSection(char *section);
+void xf86parseError(const char *format, ...);
+void xf86validationError(const char *format, ...);
+void xf86setSection(const char *section);
 int xf86getStringToken(xf86ConfigSymTabRec *tab);
 /* write.c */
 /* DRI.c */
diff --git a/xorg-server/hw/xfree86/parser/scan.c b/xorg-server/hw/xfree86/parser/scan.c
index 99b325717..9099227bb 100644
--- a/xorg-server/hw/xfree86/parser/scan.c
+++ b/xorg-server/hw/xfree86/parser/scan.c
@@ -90,7 +90,7 @@
 #define CONFIG_BUF_LEN     1024
 #define CONFIG_MAX_FILES   64
 
-static int StringToToken (char *, xf86ConfigSymTabRec *);
+static int StringToToken (const char *, xf86ConfigSymTabRec *);
 
 static struct {
 	FILE *file;
@@ -101,8 +101,6 @@ static int builtinIndex = 0;
 static int configPos = 0;		/* current readers position */
 static int configLineNo = 0;	/* linenumber */
 static char *configBuf, *configRBuf;	/* buffer for lines */
-static char *configPath;		/* path to config file */
-static char *configDirPath;		/* path to config dir */
 static char *configSection = NULL;	/* name of current section being parsed */
 static int numFiles = 0;		/* number of config files */
 static int curFileIndex = 0;		/* index of current config file */
@@ -281,8 +279,10 @@ again:
 				if (builtinConfig[builtinIndex] == NULL)
 					ret = NULL;
 				else {
-					ret = strncpy(configBuf, builtinConfig[builtinIndex],
-							CONFIG_BUF_LEN);
+					strlcpy(configBuf,
+						builtinConfig[builtinIndex],
+						CONFIG_BUF_LEN);
+					ret = configBuf;
 					builtinIndex++;
 				}
 			}
@@ -800,14 +800,12 @@ AddConfigDirFiles(const char *dirpath, struct dirent **list, int num)
 				       "files opened\n");
 				warnOnce = TRUE;
 			}
-			free(list[i]);
 			continue;
 		}
 
 		path = malloc(PATH_MAX + 1);
 		snprintf(path, PATH_MAX + 1, "%s/%s", dirpath,
 			 list[i]->d_name);
-		free(list[i]);
 		file = fopen(path, "r");
 		if (!file) {
 			free(path);
@@ -858,8 +856,10 @@ OpenConfigDir(const char *path, const char *cmdline, const char *projroot,
 		if (!found) {
 			free(dirpath);
 			dirpath = NULL;
-			free(list);
 		}
+		while (num--)
+			free(list[num]);
+		free(list);
 	}
 
 	free(pathcopy);
@@ -892,7 +892,8 @@ xf86initConfigFiles(void)
  * of the located files.
  *
  * The return value is a pointer to the actual name of the file that was
- * opened.  When no file is found, the return value is NULL.
+ * opened.  When no file is found, the return value is NULL. The caller should
+ * free() the returned value.
  *
  * The escape sequences allowed in the search path are defined above.
  *
@@ -914,7 +915,7 @@ xf86initConfigFiles(void)
 							"%P/lib/X11/%X"
 #endif
 
-const char *
+char *
 xf86openConfigFile(const char *path, const char *cmdline, const char *projroot)
 {
 	if (!path || !path[0])
@@ -923,8 +924,7 @@ xf86openConfigFile(const char *path, const char *cmdline, const char *projroot)
 		projroot = PROJECTROOT;
 
 	/* Search for a config file */
-	configPath = OpenConfigFile(path, cmdline, projroot, XCONFIGFILE);
-	return configPath;
+	return OpenConfigFile(path, cmdline, projroot, XCONFIGFILE);
 }
 
 /*
@@ -937,12 +937,13 @@ xf86openConfigFile(const char *path, const char *cmdline, const char *projroot)
  * fails if it is not found.
  *
  * The return value is a pointer to the actual name of the direcoty that was
- * opened.  When no directory is found, the return value is NULL.
+ * opened.  When no directory is found, the return value is NULL. The caller
+ * should free() the returned value.
  *
  * The escape sequences allowed in the search path are defined above.
  *
  */
-const char *
+char *
 xf86openConfigDirFiles(const char *path, const char *cmdline,
 		       const char *projroot)
 {
@@ -952,8 +953,7 @@ xf86openConfigDirFiles(const char *path, const char *cmdline,
 		projroot = PROJECTROOT;
 
 	/* Search for the multiconf directory */
-	configDirPath = OpenConfigDir(path, cmdline, projroot, XCONFIGDIR);
-	return configDirPath;
+	return OpenConfigDir(path, cmdline, projroot, XCONFIGDIR);
 }
 
 void
@@ -961,10 +961,6 @@ xf86closeConfigFile (void)
 {
 	int i;
 
-	free (configPath);
-	configPath = NULL;
-	free (configDirPath);
-	configDirPath = NULL;
 	free (configRBuf);
 	configRBuf = NULL;
 	free (configBuf);
@@ -990,11 +986,11 @@ xf86setBuiltinConfig(const char *config[])
 }
 
 void
-xf86parseError (char *format,...)
+xf86parseError (const char *format,...)
 {
 	va_list ap;
-	char *filename = numFiles ? configFiles[curFileIndex].path :
-			 "<builtin configuration>";
+	const char *filename = numFiles ? configFiles[curFileIndex].path
+					: "<builtin configuration>";
 
 	ErrorF ("Parse error on line %d of section %s in file %s\n\t",
 		 configLineNo, configSection, filename);
@@ -1006,11 +1002,11 @@ xf86parseError (char *format,...)
 }
 
 void
-xf86validationError (char *format,...)
+xf86validationError (const char *format,...)
 {
 	va_list ap;
-	char *filename = numFiles ? configFiles[curFileIndex].path :
-			 "<builtin configuration>";
+	const char *filename = numFiles ? configFiles[curFileIndex].path
+					: "<builtin configuration>";
 
 	ErrorF ("Data incomplete in file %s\n\t", filename);
 	va_start (ap, format);
@@ -1021,7 +1017,7 @@ xf86validationError (char *format,...)
 }
 
 void
-xf86setSection (char *section)
+xf86setSection (const char *section)
 {
 	free(configSection);
 	configSection = strdup(section);
@@ -1038,7 +1034,7 @@ xf86getStringToken (xf86ConfigSymTabRec * tab)
 }
 
 static int
-StringToToken (char *str, xf86ConfigSymTabRec * tab)
+StringToToken (const char *str, xf86ConfigSymTabRec * tab)
 {
 	int i;
 
diff --git a/xorg-server/hw/xfree86/parser/xf86Optrec.h b/xorg-server/hw/xfree86/parser/xf86Optrec.h
index 61a8c5ff5..b8e9d6192 100644
--- a/xorg-server/hw/xfree86/parser/xf86Optrec.h
+++ b/xorg-server/hw/xfree86/parser/xf86Optrec.h
@@ -77,7 +77,7 @@ extern _X_EXPORT char *xf86optionValue(XF86OptionPtr opt);
 extern _X_EXPORT XF86OptionPtr xf86newOption(char *name, char *value);
 extern _X_EXPORT XF86OptionPtr xf86nextOption(XF86OptionPtr list);
 extern _X_EXPORT XF86OptionPtr xf86findOption(XF86OptionPtr list, const char *name);
-extern _X_EXPORT char *xf86findOptionValue(XF86OptionPtr list, const char *name);
+extern _X_EXPORT const char *xf86findOptionValue(XF86OptionPtr list, const char *name);
 extern _X_EXPORT XF86OptionPtr xf86optionListCreate(const char **options, int count, int used);
 extern _X_EXPORT XF86OptionPtr xf86optionListMerge(XF86OptionPtr head, XF86OptionPtr tail);
 extern _X_EXPORT int xf86nameCompare (const char *s1, const char *s2);
diff --git a/xorg-server/hw/xfree86/parser/xf86Parser.h b/xorg-server/hw/xfree86/parser/xf86Parser.h
index a8785c5fa..7d4662b98 100644
--- a/xorg-server/hw/xfree86/parser/xf86Parser.h
+++ b/xorg-server/hw/xfree86/parser/xf86Parser.h
@@ -479,7 +479,7 @@ XF86ConfigRec, *XF86ConfigPtr;
 typedef struct
 {
 	int token;			/* id of the token */
-	char *name;			/* pointer to the LOWERCASED name */
+	const char *name;		/* pointer to the LOWERCASED name */
 }
 xf86ConfigSymTabRec, *xf86ConfigSymTabPtr;
 
@@ -487,10 +487,10 @@ xf86ConfigSymTabRec, *xf86ConfigSymTabPtr;
  * prototypes for public functions
  */
 extern void xf86initConfigFiles(void);
-extern const char *xf86openConfigFile(const char *path, const char *cmdline,
-				      const char *projroot);
-extern const char *xf86openConfigDirFiles(const char *path, const char *cmdline,
-					  const char *projroot);
+extern char *xf86openConfigFile(const char *path, const char *cmdline,
+				const char *projroot);
+extern char *xf86openConfigDirFiles(const char *path, const char *cmdline,
+				    const char *projroot);
 extern void xf86setBuiltinConfig(const char *config[]);
 extern XF86ConfigPtr xf86readConfigFile(void);
 extern void xf86closeConfigFile(void);
diff --git a/xorg-server/hw/xfree86/ramdac/BTPriv.h b/xorg-server/hw/xfree86/ramdac/BTPriv.h
index 184b4811c..52737768f 100644
--- a/xorg-server/hw/xfree86/ramdac/BTPriv.h
+++ b/xorg-server/hw/xfree86/ramdac/BTPriv.h
@@ -6,7 +6,7 @@
 #include "BT.h"
 
 typedef struct {
-	char *DeviceName;
+	const char *DeviceName;
 } xf86BTramdacInfo;
 
 extern xf86BTramdacInfo BTramdacDeviceInfo[];
diff --git a/xorg-server/hw/xfree86/ramdac/IBMPriv.h b/xorg-server/hw/xfree86/ramdac/IBMPriv.h
index a33da9106..309a193ad 100644
--- a/xorg-server/hw/xfree86/ramdac/IBMPriv.h
+++ b/xorg-server/hw/xfree86/ramdac/IBMPriv.h
@@ -6,7 +6,7 @@
 #include "IBM.h"
 
 typedef struct {
-	char *DeviceName;
+	const char *DeviceName;
 } xf86IBMramdacInfo;
 
 extern xf86IBMramdacInfo IBMramdacDeviceInfo[];
diff --git a/xorg-server/hw/xfree86/ramdac/TIPriv.h b/xorg-server/hw/xfree86/ramdac/TIPriv.h
index 191c9b5ce..20e07f5cc 100644
--- a/xorg-server/hw/xfree86/ramdac/TIPriv.h
+++ b/xorg-server/hw/xfree86/ramdac/TIPriv.h
@@ -6,7 +6,7 @@
 #include "TI.h"
 
 typedef struct {
-	char *DeviceName;
+	const char *DeviceName;
 } xf86TIramdacInfo;
 
 extern xf86TIramdacInfo TIramdacDeviceInfo[];
diff --git a/xorg-server/hw/xfree86/utils/gtf/gtf.c b/xorg-server/hw/xfree86/utils/gtf/gtf.c
index 840626c66..87fcb3f0e 100644
--- a/xorg-server/hw/xfree86/utils/gtf/gtf.c
+++ b/xorg-server/hw/xfree86/utils/gtf/gtf.c
@@ -1,741 +1,741 @@
-/* gtf.c  Generate mode timings using the GTF Timing Standard

- *

- * gcc gtf.c -o gtf -lm -Wall

- *

- * Copyright (c) 2001, Andy Ritger  aritger@nvidia.com

- * All rights reserved.

- * 

- * Redistribution and use in source and binary forms, with or without

- * modification, are permitted provided that the following conditions

- * are met:

- * 

- * o Redistributions of source code must retain the above copyright

- *   notice, this list of conditions and the following disclaimer.

- * o Redistributions in binary form must reproduce the above copyright

- *   notice, this list of conditions and the following disclaimer

- *   in the documentation and/or other materials provided with the

- *   distribution.

- * o Neither the name of NVIDIA nor the names of its contributors

- *   may be used to endorse or promote products derived from this

- *   software without specific prior written permission.

- *

- *

- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT

- * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND

- * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL

- * THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,

- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,

- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER

- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN

- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

- * POSSIBILITY OF SUCH DAMAGE.

- *

- * 

- *

- * This program is based on the Generalized Timing Formula(GTF TM)

- * Standard Version: 1.0, Revision: 1.0

- *

- * The GTF Document contains the following Copyright information:

- *

- * Copyright (c) 1994, 1995, 1996 - Video Electronics Standards

- * Association. Duplication of this document within VESA member

- * companies for review purposes is permitted. All other rights

- * reserved.

- *

- * While every precaution has been taken in the preparation

- * of this standard, the Video Electronics Standards Association and

- * its contributors assume no responsibility for errors or omissions,

- * and make no warranties, expressed or implied, of functionality

- * of suitability for any purpose. The sample code contained within

- * this standard may be used without restriction.

- *

- * 

- *

- * The GTF EXCEL(TM) SPREADSHEET, a sample (and the definitive)

- * implementation of the GTF Timing Standard, is available at:

- *

- * ftp://ftp.vesa.org/pub/GTF/GTF_V1R1.xls

- *

- *

- *

- * This program takes a desired resolution and vertical refresh rate,

- * and computes mode timings according to the GTF Timing Standard.

- * These mode timings can then be formatted as an XServer modeline

- * or a mode description for use by fbset(8).

- *

- *

- *

- * NOTES:

- *

- * The GTF allows for computation of "margins" (the visible border

- * surrounding the addressable video); on most non-overscan type

- * systems, the margin period is zero.  I've implemented the margin

- * computations but not enabled it because 1) I don't really have

- * any experience with this, and 2) neither XServer modelines nor

- * fbset fb.modes provide an obvious way for margin timings to be

- * included in their mode descriptions (needs more investigation).

- * 

- * The GTF provides for computation of interlaced mode timings;

- * I've implemented the computations but not enabled them, yet.

- * I should probably enable and test this at some point.

- *

- * 

- *

- * TODO:

- *

- * o Add support for interlaced modes.

- *

- * o Implement the other portions of the GTF: compute mode timings

- *   given either the desired pixel clock or the desired horizontal

- *   frequency.

- *

- * o It would be nice if this were more general purpose to do things

- *   outside the scope of the GTF: like generate double scan mode

- *   timings, for example.

- *   

- * o Printing digits to the right of the decimal point when the

- *   digits are 0 annoys me.

- *

- * o Error checking.

- *

- */

-

-#ifdef HAVE_XORG_CONFIG_H

-# include <xorg-config.h>

-#endif

-

-#include <stdio.h>

-#include <stdlib.h>

-#include <string.h>

-#include <math.h>

-

-#define MARGIN_PERCENT    1.8   /* % of active vertical image                */

-#define CELL_GRAN         8.0   /* assumed character cell granularity        */

-#define MIN_PORCH         1     /* minimum front porch                       */

-#define V_SYNC_RQD        3     /* width of vsync in lines                   */

-#define H_SYNC_PERCENT    8.0   /* width of hsync as % of total line         */

-#define MIN_VSYNC_PLUS_BP 550.0 /* min time of vsync + back porch (microsec) */

-#define M                 600.0 /* blanking formula gradient                 */

-#define C                 40.0  /* blanking formula offset                   */

-#define K                 128.0 /* blanking formula scaling factor           */

-#define J                 20.0  /* blanking formula scaling factor           */

-

-/* C' and M' are part of the Blanking Duty Cycle computation */

-

-#define C_PRIME           (((C - J) * K/256.0) + J)

-#define M_PRIME           (K/256.0 * M)

-

-

-/* struct definitions */

-

-typedef struct __mode

-{

-    int hr, hss, hse, hfl;

-    int vr, vss, vse, vfl;

-    float pclk, h_freq, v_freq;

-} mode;

-

-

-typedef struct __options

-{

-    int x, y;

-    int xorgmode, fbmode;

-    float v_freq;

-} options;

-

-

-

-

-/* prototypes */

-

-void print_value(int n, char *name, float val);

-void print_xf86_mode (mode *m);

-void print_fb_mode (mode *m);

-mode *vert_refresh (int h_pixels, int v_lines, float freq,

-                    int interlaced, int margins);

-options *parse_command_line (int argc, char *argv[]);

-

-

-

-

-/*

- * print_value() - print the result of the named computation; this is

- * useful when comparing against the GTF EXCEL spreadsheet.

- */

-

-int global_verbose = 0;

-

-void print_value(int n, char *name, float val)

-{

-    if (global_verbose) {

-        printf("%2d: %-27s: %15f\n", n, name, val);

-    }

-}

-

-

-

-/* print_xf86_mode() - print the XServer modeline, given mode timings. */

-

-void print_xf86_mode (mode *m)

-{

-    printf ("\n");

-    printf ("  # %dx%d @ %.2f Hz (GTF) hsync: %.2f kHz; pclk: %.2f MHz\n",

-            m->hr, m->vr, m->v_freq, m->h_freq, m->pclk);

-    

-    printf ("  Modeline \"%dx%d_%.2f\"  %.2f"

-            "  %d %d %d %d"

-            "  %d %d %d %d"

-            "  -HSync +Vsync\n\n",

-            m->hr, m->vr, m->v_freq, m->pclk,

-            m->hr, m->hss, m->hse, m->hfl,

-            m->vr, m->vss, m->vse, m->vfl);

-    

-}

-

-

-

-/*

- * print_fb_mode() - print a mode description in fbset(8) format;

- * see the fb.modes(8) manpage.  The timing description used in

- * this is rather odd; they use "left and right margin" to refer

- * to the portion of the hblank before and after the sync pulse

- * by conceptually wrapping the portion of the blank after the pulse

- * to infront of the visible region; ie:

- * 

- *

- * Timing description I'm accustomed to:

- *

- *

- *

- *     <--------1--------> <--2--> <--3--> <--4-->

- *                                _________

- *    |-------------------|_______|       |_______

- *

- *                        R       SS      SE     FL

- *       

- * 1: visible image

- * 2: blank before sync (aka front porch)

- * 3: sync pulse

- * 4: blank after sync (aka back porch)

- * R: Resolution

- * SS: Sync Start

- * SE: Sync End

- * FL: Frame Length

- *

- *

- * But the fb.modes format is:

- *

- *

- *    <--4--> <--------1--------> <--2--> <--3--> 

- *                                       _________

- *    _______|-------------------|_______|       |

- *  

- * The fb.modes(8) manpage refers to <4> and <2> as the left and

- * right "margin" (as well as upper and lower margin in the vertical

- * direction) -- note that this has nothing to do with the term

- * "margin" used in the GTF Timing Standard.

- *

- * XXX always prints the 32 bit mode -- should I provide a command

- * line option to specify the bpp?  It's simple enough for a user

- * to edit the mode description after it's generated.

- */

-

-void print_fb_mode (mode *m)

-{

-    printf ("\n");

-    printf ("mode \"%dx%d %.2fHz 32bit (GTF)\"\n",

-            m->hr, m->vr, m->v_freq);

-    printf ("    # PCLK: %.2f MHz, H: %.2f kHz, V: %.2f Hz\n",

-            m->pclk, m->h_freq, m->v_freq);

-    printf ("    geometry %d %d %d %d 32\n",

-            m->hr, m->vr, m->hr, m->vr);

-    printf ("    timings %d %d %d %d %d %d %d\n",

-            (int) rint(1000000.0/m->pclk),/* pixclock in picoseconds */

-            m->hfl - m->hse,              /* left margin (in pixels) */

-            m->hss - m->hr,               /* right margin (in pixels) */

-            m->vfl - m->vse,              /* upper margin (in pixel lines) */

-            m->vss - m->vr,               /* lower margin (in pixel lines) */

-            m->hse - m->hss,              /* horizontal sync length (pixels) */

-            m->vse - m->vss);             /* vert sync length (pixel lines) */

-    printf ("    hsync low\n");

-    printf ("    vsync high\n");

-    printf ("endmode\n\n");

-    

-}

-

-

-

-

-/*

- * vert_refresh() - as defined by the GTF Timing Standard, compute the

- * Stage 1 Parameters using the vertical refresh frequency.  In other

- * words: input a desired resolution and desired refresh rate, and

- * output the GTF mode timings.

- *

- * XXX All the code is in place to compute interlaced modes, but I don't

- * feel like testing it right now.

- *

- * XXX margin computations are implemented but not tested (nor used by

- * XServer of fbset mode descriptions, from what I can tell).

- */

-

-mode *vert_refresh (int h_pixels, int v_lines, float freq,

-                    int interlaced, int margins)

-{

-    float h_pixels_rnd;

-    float v_lines_rnd;

-    float v_field_rate_rqd;

-    float top_margin;

-    float bottom_margin;

-    float interlace;

-    float h_period_est;

-    float vsync_plus_bp;

-    float v_back_porch;

-    float total_v_lines;

-    float v_field_rate_est;

-    float h_period;

-    float v_field_rate;

-    float v_frame_rate;

-    float left_margin;

-    float right_margin;

-    float total_active_pixels;

-    float ideal_duty_cycle;

-    float h_blank;

-    float total_pixels;

-    float pixel_freq;

-    float h_freq;

-

-    float h_sync;

-    float h_front_porch;

-    float v_odd_front_porch_lines;

-

-    mode *m = (mode*) malloc (sizeof (mode));

-    

-    

-    /*  1. In order to give correct results, the number of horizontal

-     *  pixels requested is first processed to ensure that it is divisible

-     *  by the character size, by rounding it to the nearest character

-     *  cell boundary:

-     *

-     *  [H PIXELS RND] = ((ROUND([H PIXELS]/[CELL GRAN RND],0))*[CELLGRAN RND])

-     */

-    

-    h_pixels_rnd = rint((float) h_pixels / CELL_GRAN) * CELL_GRAN;

-    

-    print_value(1, "[H PIXELS RND]", h_pixels_rnd);

-

-    

-    /*  2. If interlace is requested, the number of vertical lines assumed

-     *  by the calculation must be halved, as the computation calculates

-     *  the number of vertical lines per field. In either case, the

-     *  number of lines is rounded to the nearest integer.

-     *   

-     *  [V LINES RND] = IF([INT RQD?]="y", ROUND([V LINES]/2,0),

-     *                                     ROUND([V LINES],0))

-     */

-

-    v_lines_rnd = interlaced ?

-            rint((float) v_lines) / 2.0 :

-            rint((float) v_lines);

-    

-    print_value(2, "[V LINES RND]", v_lines_rnd);

-    

-    

-    /*  3. Find the frame rate required:

-     *

-     *  [V FIELD RATE RQD] = IF([INT RQD?]="y", [I/P FREQ RQD]*2,

-     *                                          [I/P FREQ RQD])

-     */

-

-    v_field_rate_rqd = interlaced ? (freq * 2.0) : (freq);

-

-    print_value(3, "[V FIELD RATE RQD]", v_field_rate_rqd);

-    

-

-    /*  4. Find number of lines in Top margin:

-     *

-     *  [TOP MARGIN (LINES)] = IF([MARGINS RQD?]="Y",

-     *          ROUND(([MARGIN%]/100*[V LINES RND]),0),

-     *          0)

-     */

-

-    top_margin = margins ? rint(MARGIN_PERCENT / 100.0 * v_lines_rnd) : (0.0);

-

-    print_value(4, "[TOP MARGIN (LINES)]", top_margin);

-    

-

-    /*  5. Find number of lines in Bottom margin:

-     *

-     *  [BOT MARGIN (LINES)] = IF([MARGINS RQD?]="Y",

-     *          ROUND(([MARGIN%]/100*[V LINES RND]),0),

-     *          0)

-     */

-

-    bottom_margin = margins ? rint(MARGIN_PERCENT/100.0 * v_lines_rnd) : (0.0);

-

-    print_value(5, "[BOT MARGIN (LINES)]", bottom_margin);

-

-    

-    /*  6. If interlace is required, then set variable [INTERLACE]=0.5:

-     *   

-     *  [INTERLACE]=(IF([INT RQD?]="y",0.5,0))

-     */

-

-    interlace = interlaced ? 0.5 : 0.0;

-

-    print_value(6, "[INTERLACE]", interlace);

-    

-

-    /*  7. Estimate the Horizontal period

-     *

-     *  [H PERIOD EST] = ((1/[V FIELD RATE RQD]) - [MIN VSYNC+BP]/1000000) /

-     *                    ([V LINES RND] + (2*[TOP MARGIN (LINES)]) +

-     *                     [MIN PORCH RND]+[INTERLACE]) * 1000000

-     */

-

-    h_period_est = (((1.0/v_field_rate_rqd) - (MIN_VSYNC_PLUS_BP/1000000.0))

-                    / (v_lines_rnd + (2*top_margin) + MIN_PORCH + interlace)

-                    * 1000000.0);

-

-    print_value(7, "[H PERIOD EST]", h_period_est);

-    

-

-    /*  8. Find the number of lines in V sync + back porch:

-     *

-     *  [V SYNC+BP] = ROUND(([MIN VSYNC+BP]/[H PERIOD EST]),0)

-     */

-

-    vsync_plus_bp = rint(MIN_VSYNC_PLUS_BP/h_period_est);

-

-    print_value(8, "[V SYNC+BP]", vsync_plus_bp);

-    

-    

-    /*  9. Find the number of lines in V back porch alone:

-     *

-     *  [V BACK PORCH] = [V SYNC+BP] - [V SYNC RND]

-     *

-     *  XXX is "[V SYNC RND]" a typo? should be [V SYNC RQD]?

-     */

-    

-    v_back_porch = vsync_plus_bp - V_SYNC_RQD;

-    

-    print_value(9, "[V BACK PORCH]", v_back_porch);

-    

-

-    /*  10. Find the total number of lines in Vertical field period:

-     *

-     *  [TOTAL V LINES] = [V LINES RND] + [TOP MARGIN (LINES)] +

-     *                    [BOT MARGIN (LINES)] + [V SYNC+BP] + [INTERLACE] +

-     *                    [MIN PORCH RND]

-     */

-

-    total_v_lines = v_lines_rnd + top_margin + bottom_margin + vsync_plus_bp +

-        interlace + MIN_PORCH;

-    

-    print_value(10, "[TOTAL V LINES]", total_v_lines);

-    

-

-    /*  11. Estimate the Vertical field frequency:

-     *

-     *  [V FIELD RATE EST] = 1 / [H PERIOD EST] / [TOTAL V LINES] * 1000000

-     */

-

-    v_field_rate_est = 1.0 / h_period_est / total_v_lines * 1000000.0;

-    

-    print_value(11, "[V FIELD RATE EST]", v_field_rate_est);

-    

-

-    /*  12. Find the actual horizontal period:

-     *

-     *  [H PERIOD] = [H PERIOD EST] / ([V FIELD RATE RQD] / [V FIELD RATE EST])

-     */

-

-    h_period = h_period_est / (v_field_rate_rqd / v_field_rate_est);

-    

-    print_value(12, "[H PERIOD]", h_period);

-    

-

-    /*  13. Find the actual Vertical field frequency:

-     *

-     *  [V FIELD RATE] = 1 / [H PERIOD] / [TOTAL V LINES] * 1000000

-     */

-

-    v_field_rate = 1.0 / h_period / total_v_lines * 1000000.0;

-

-    print_value(13, "[V FIELD RATE]", v_field_rate);

-    

-

-    /*  14. Find the Vertical frame frequency:

-     *

-     *  [V FRAME RATE] = (IF([INT RQD?]="y", [V FIELD RATE]/2, [V FIELD RATE]))

-     */

-

-    v_frame_rate = interlaced ? v_field_rate / 2.0 : v_field_rate;

-

-    print_value(14, "[V FRAME RATE]", v_frame_rate);

-    

-

-    /*  15. Find number of pixels in left margin:

-     *

-     *  [LEFT MARGIN (PIXELS)] = (IF( [MARGINS RQD?]="Y",

-     *          (ROUND( ([H PIXELS RND] * [MARGIN%] / 100 /

-     *                   [CELL GRAN RND]),0)) * [CELL GRAN RND],

-     *          0))

-     */

-

-    left_margin = margins ?

-        rint(h_pixels_rnd * MARGIN_PERCENT / 100.0 / CELL_GRAN) * CELL_GRAN :

-        0.0;

-    

-    print_value(15, "[LEFT MARGIN (PIXELS)]", left_margin);

-    

-

-    /*  16. Find number of pixels in right margin:

-     *

-     *  [RIGHT MARGIN (PIXELS)] = (IF( [MARGINS RQD?]="Y",

-     *          (ROUND( ([H PIXELS RND] * [MARGIN%] / 100 /

-     *                   [CELL GRAN RND]),0)) * [CELL GRAN RND],

-     *          0))

-     */

-    

-    right_margin = margins ?

-        rint(h_pixels_rnd * MARGIN_PERCENT / 100.0 / CELL_GRAN) * CELL_GRAN :

-        0.0;

-    

-    print_value(16, "[RIGHT MARGIN (PIXELS)]", right_margin);

-    

-

-    /*  17. Find total number of active pixels in image and left and right

-     *  margins:

-     *

-     *  [TOTAL ACTIVE PIXELS] = [H PIXELS RND] + [LEFT MARGIN (PIXELS)] +

-     *                          [RIGHT MARGIN (PIXELS)]

-     */

-

-    total_active_pixels = h_pixels_rnd + left_margin + right_margin;

-    

-    print_value(17, "[TOTAL ACTIVE PIXELS]", total_active_pixels);

-    

-    

-    /*  18. Find the ideal blanking duty cycle from the blanking duty cycle

-     *  equation:

-     *

-     *  [IDEAL DUTY CYCLE] = [C'] - ([M']*[H PERIOD]/1000)

-     */

-

-    ideal_duty_cycle = C_PRIME - (M_PRIME * h_period / 1000.0);

-    

-    print_value(18, "[IDEAL DUTY CYCLE]", ideal_duty_cycle);

-    

-

-    /*  19. Find the number of pixels in the blanking time to the nearest

-     *  double character cell:

-     *

-     *  [H BLANK (PIXELS)] = (ROUND(([TOTAL ACTIVE PIXELS] *

-     *                               [IDEAL DUTY CYCLE] /

-     *                               (100-[IDEAL DUTY CYCLE]) /

-     *                               (2*[CELL GRAN RND])), 0))

-     *                       * (2*[CELL GRAN RND])

-     */

-

-    h_blank = rint(total_active_pixels *

-                   ideal_duty_cycle /

-                   (100.0 - ideal_duty_cycle) /

-                   (2.0 * CELL_GRAN)) * (2.0 * CELL_GRAN);

-    

-    print_value(19, "[H BLANK (PIXELS)]", h_blank);

-    

-

-    /*  20. Find total number of pixels:

-     *

-     *  [TOTAL PIXELS] = [TOTAL ACTIVE PIXELS] + [H BLANK (PIXELS)]

-     */

-

-    total_pixels = total_active_pixels + h_blank;

-    

-    print_value(20, "[TOTAL PIXELS]", total_pixels);

-    

-

-    /*  21. Find pixel clock frequency:

-     *

-     *  [PIXEL FREQ] = [TOTAL PIXELS] / [H PERIOD]

-     */

-    

-    pixel_freq = total_pixels / h_period;

-    

-    print_value(21, "[PIXEL FREQ]", pixel_freq);

-    

-

-    /*  22. Find horizontal frequency:

-     *

-     *  [H FREQ] = 1000 / [H PERIOD]

-     */

-

-    h_freq = 1000.0 / h_period;

-    

-    print_value(22, "[H FREQ]", h_freq);

-    

-

-

-    /* Stage 1 computations are now complete; I should really pass

-       the results to another function and do the Stage 2

-       computations, but I only need a few more values so I'll just

-       append the computations here for now */

-

-    

-

-    /*  17. Find the number of pixels in the horizontal sync period:

-     *

-     *  [H SYNC (PIXELS)] =(ROUND(([H SYNC%] / 100 * [TOTAL PIXELS] /

-     *                             [CELL GRAN RND]),0))*[CELL GRAN RND]

-     */

-

-    h_sync = rint(H_SYNC_PERCENT/100.0 * total_pixels / CELL_GRAN) * CELL_GRAN;

-

-    print_value(17, "[H SYNC (PIXELS)]", h_sync);

-    

-

-    /*  18. Find the number of pixels in the horizontal front porch period:

-     *

-     *  [H FRONT PORCH (PIXELS)] = ([H BLANK (PIXELS)]/2)-[H SYNC (PIXELS)]

-     */

-

-    h_front_porch = (h_blank / 2.0) - h_sync;

-

-    print_value(18, "[H FRONT PORCH (PIXELS)]", h_front_porch);

-    

-    

-    /*  36. Find the number of lines in the odd front porch period:

-     *

-     *  [V ODD FRONT PORCH(LINES)]=([MIN PORCH RND]+[INTERLACE])

-     */

-    

-    v_odd_front_porch_lines = MIN_PORCH + interlace;

-    

-    print_value(36, "[V ODD FRONT PORCH(LINES)]", v_odd_front_porch_lines);

-    

-

-    /* finally, pack the results in the mode struct */

-    

-    m->hr  = (int) (h_pixels_rnd);

-    m->hss = (int) (h_pixels_rnd + h_front_porch);

-    m->hse = (int) (h_pixels_rnd + h_front_porch + h_sync);

-    m->hfl = (int) (total_pixels);

-

-    m->vr  = (int) (v_lines_rnd);

-    m->vss = (int) (v_lines_rnd + v_odd_front_porch_lines);

-    m->vse = (int) (int) (v_lines_rnd + v_odd_front_porch_lines + V_SYNC_RQD);

-    m->vfl = (int) (total_v_lines);

-

-    m->pclk   = pixel_freq;

-    m->h_freq = h_freq;

-    m->v_freq = freq;

-

-    return m;

-    

-}

-

-

-

-

-/*

- * parse_command_line() - parse the command line and return an

- * alloced structure containing the results.  On error print usage

- * and return NULL.

- */ 

-

-options *parse_command_line (int argc, char *argv[])

-{

-    int n;

-

-    options *o = (options *) calloc (1, sizeof (options));

-

-    if (argc < 4) goto bad_option;

-

-    o->x = atoi (argv[1]);

-    o->y = atoi (argv[2]);

-    o->v_freq = atof (argv[3]);

-

-    /* XXX should check for errors in the above */

-    

-    n = 4;

-

-    while (n < argc) {

-        if ((strcmp (argv[n], "-v") == 0) ||

-            (strcmp (argv[n], "--verbose") == 0)) {

-            global_verbose = 1;

-        } else if ((strcmp (argv[n], "-f") == 0) ||

-                   (strcmp (argv[n], "--fbmode") == 0)) {

-            o->fbmode = 1;

-        } else if ((strcmp (argv[n], "-x") == 0) ||

-		   (strcmp (argv[n], "--xorgmode") == 0) ||

-                   (strcmp (argv[n], "--xf86mode") == 0)) {

-            o->xorgmode = 1;

-        } else {

-            goto bad_option;

-        }

-        

-        n++;

-    }

-

-    /* if neither xorgmode nor fbmode were requested, default to

-       xorgmode */

-

-    if (!o->fbmode && !o->xorgmode) o->xorgmode = 1;

-    

-    return o;

-    

- bad_option:

-

-    fprintf (stderr, "\n");

-    fprintf (stderr, "usage: %s x y refresh [-v|--verbose] "

-             "[-f|--fbmode] [-x|--xorgmode]\n", argv[0]);

-

-    fprintf (stderr, "\n");

-    

-    fprintf (stderr, "            x : the desired horizontal "

-             "resolution (required)\n");

-    fprintf (stderr, "            y : the desired vertical "

-             "resolution (required)\n");

-    fprintf (stderr, "      refresh : the desired refresh "

-             "rate (required)\n");

-    fprintf (stderr, " -v|--verbose : enable verbose printouts "

-             "(traces each step of the computation)\n");

-    fprintf (stderr, "  -f|--fbmode : output an fbset(8)-style mode "

-             "description\n");

-    fprintf (stderr, " -x|--xorgmode : output an "__XSERVERNAME__"-style mode "

-             "description (this is the default\n"

-             "                if no mode description is requested)\n");

-    

-    fprintf (stderr, "\n");

-    

-    free (o);

-    return NULL;

-

-}

-

-

-

-int main (int argc, char *argv[])

-{

-    mode *m;

-    options *o;

-

-    o = parse_command_line (argc, argv);

-    if (!o) exit (1);

-    

-    m = vert_refresh (o->x, o->y, o->v_freq, 0, 0);

-    if (!m) exit (1);

-

-    if (o->xorgmode)

-        print_xf86_mode(m);

-    

-    if (o->fbmode)

-        print_fb_mode(m);

-    

-    return 0;

-    

-}

+/* gtf.c  Generate mode timings using the GTF Timing Standard
+ *
+ * gcc gtf.c -o gtf -lm -Wall
+ *
+ * Copyright (c) 2001, Andy Ritger  aritger@nvidia.com
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ * o Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * o Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer
+ *   in the documentation and/or other materials provided with the
+ *   distribution.
+ * o Neither the name of NVIDIA nor the names of its contributors
+ *   may be used to endorse or promote products derived from this
+ *   software without specific prior written permission.
+ *
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
+ * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * 
+ *
+ * This program is based on the Generalized Timing Formula(GTF TM)
+ * Standard Version: 1.0, Revision: 1.0
+ *
+ * The GTF Document contains the following Copyright information:
+ *
+ * Copyright (c) 1994, 1995, 1996 - Video Electronics Standards
+ * Association. Duplication of this document within VESA member
+ * companies for review purposes is permitted. All other rights
+ * reserved.
+ *
+ * While every precaution has been taken in the preparation
+ * of this standard, the Video Electronics Standards Association and
+ * its contributors assume no responsibility for errors or omissions,
+ * and make no warranties, expressed or implied, of functionality
+ * of suitability for any purpose. The sample code contained within
+ * this standard may be used without restriction.
+ *
+ * 
+ *
+ * The GTF EXCEL(TM) SPREADSHEET, a sample (and the definitive)
+ * implementation of the GTF Timing Standard, is available at:
+ *
+ * ftp://ftp.vesa.org/pub/GTF/GTF_V1R1.xls
+ *
+ *
+ *
+ * This program takes a desired resolution and vertical refresh rate,
+ * and computes mode timings according to the GTF Timing Standard.
+ * These mode timings can then be formatted as an XServer modeline
+ * or a mode description for use by fbset(8).
+ *
+ *
+ *
+ * NOTES:
+ *
+ * The GTF allows for computation of "margins" (the visible border
+ * surrounding the addressable video); on most non-overscan type
+ * systems, the margin period is zero.  I've implemented the margin
+ * computations but not enabled it because 1) I don't really have
+ * any experience with this, and 2) neither XServer modelines nor
+ * fbset fb.modes provide an obvious way for margin timings to be
+ * included in their mode descriptions (needs more investigation).
+ * 
+ * The GTF provides for computation of interlaced mode timings;
+ * I've implemented the computations but not enabled them, yet.
+ * I should probably enable and test this at some point.
+ *
+ * 
+ *
+ * TODO:
+ *
+ * o Add support for interlaced modes.
+ *
+ * o Implement the other portions of the GTF: compute mode timings
+ *   given either the desired pixel clock or the desired horizontal
+ *   frequency.
+ *
+ * o It would be nice if this were more general purpose to do things
+ *   outside the scope of the GTF: like generate double scan mode
+ *   timings, for example.
+ *   
+ * o Printing digits to the right of the decimal point when the
+ *   digits are 0 annoys me.
+ *
+ * o Error checking.
+ *
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+# include <xorg-config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#define MARGIN_PERCENT    1.8   /* % of active vertical image                */
+#define CELL_GRAN         8.0   /* assumed character cell granularity        */
+#define MIN_PORCH         1     /* minimum front porch                       */
+#define V_SYNC_RQD        3     /* width of vsync in lines                   */
+#define H_SYNC_PERCENT    8.0   /* width of hsync as % of total line         */
+#define MIN_VSYNC_PLUS_BP 550.0 /* min time of vsync + back porch (microsec) */
+#define M                 600.0 /* blanking formula gradient                 */
+#define C                 40.0  /* blanking formula offset                   */
+#define K                 128.0 /* blanking formula scaling factor           */
+#define J                 20.0  /* blanking formula scaling factor           */
+
+/* C' and M' are part of the Blanking Duty Cycle computation */
+
+#define C_PRIME           (((C - J) * K/256.0) + J)
+#define M_PRIME           (K/256.0 * M)
+
+
+/* struct definitions */
+
+typedef struct __mode
+{
+    int hr, hss, hse, hfl;
+    int vr, vss, vse, vfl;
+    float pclk, h_freq, v_freq;
+} mode;
+
+
+typedef struct __options
+{
+    int x, y;
+    int xorgmode, fbmode;
+    float v_freq;
+} options;
+
+
+
+
+/* prototypes */
+
+void print_value(int n, const char *name, float val);
+void print_xf86_mode (mode *m);
+void print_fb_mode (mode *m);
+mode *vert_refresh (int h_pixels, int v_lines, float freq,
+                    int interlaced, int margins);
+options *parse_command_line (int argc, char *argv[]);
+
+
+
+
+/*
+ * print_value() - print the result of the named computation; this is
+ * useful when comparing against the GTF EXCEL spreadsheet.
+ */
+
+int global_verbose = 0;
+
+void print_value(int n, const char *name, float val)
+{
+    if (global_verbose) {
+        printf("%2d: %-27s: %15f\n", n, name, val);
+    }
+}
+
+
+
+/* print_xf86_mode() - print the XServer modeline, given mode timings. */
+
+void print_xf86_mode (mode *m)
+{
+    printf ("\n");
+    printf ("  # %dx%d @ %.2f Hz (GTF) hsync: %.2f kHz; pclk: %.2f MHz\n",
+            m->hr, m->vr, m->v_freq, m->h_freq, m->pclk);
+    
+    printf ("  Modeline \"%dx%d_%.2f\"  %.2f"
+            "  %d %d %d %d"
+            "  %d %d %d %d"
+            "  -HSync +Vsync\n\n",
+            m->hr, m->vr, m->v_freq, m->pclk,
+            m->hr, m->hss, m->hse, m->hfl,
+            m->vr, m->vss, m->vse, m->vfl);
+    
+}
+
+
+
+/*
+ * print_fb_mode() - print a mode description in fbset(8) format;
+ * see the fb.modes(8) manpage.  The timing description used in
+ * this is rather odd; they use "left and right margin" to refer
+ * to the portion of the hblank before and after the sync pulse
+ * by conceptually wrapping the portion of the blank after the pulse
+ * to infront of the visible region; ie:
+ * 
+ *
+ * Timing description I'm accustomed to:
+ *
+ *
+ *
+ *     <--------1--------> <--2--> <--3--> <--4-->
+ *                                _________
+ *    |-------------------|_______|       |_______
+ *
+ *                        R       SS      SE     FL
+ *       
+ * 1: visible image
+ * 2: blank before sync (aka front porch)
+ * 3: sync pulse
+ * 4: blank after sync (aka back porch)
+ * R: Resolution
+ * SS: Sync Start
+ * SE: Sync End
+ * FL: Frame Length
+ *
+ *
+ * But the fb.modes format is:
+ *
+ *
+ *    <--4--> <--------1--------> <--2--> <--3--> 
+ *                                       _________
+ *    _______|-------------------|_______|       |
+ *  
+ * The fb.modes(8) manpage refers to <4> and <2> as the left and
+ * right "margin" (as well as upper and lower margin in the vertical
+ * direction) -- note that this has nothing to do with the term
+ * "margin" used in the GTF Timing Standard.
+ *
+ * XXX always prints the 32 bit mode -- should I provide a command
+ * line option to specify the bpp?  It's simple enough for a user
+ * to edit the mode description after it's generated.
+ */
+
+void print_fb_mode (mode *m)
+{
+    printf ("\n");
+    printf ("mode \"%dx%d %.2fHz 32bit (GTF)\"\n",
+            m->hr, m->vr, m->v_freq);
+    printf ("    # PCLK: %.2f MHz, H: %.2f kHz, V: %.2f Hz\n",
+            m->pclk, m->h_freq, m->v_freq);
+    printf ("    geometry %d %d %d %d 32\n",
+            m->hr, m->vr, m->hr, m->vr);
+    printf ("    timings %d %d %d %d %d %d %d\n",
+            (int) rint(1000000.0/m->pclk),/* pixclock in picoseconds */
+            m->hfl - m->hse,              /* left margin (in pixels) */
+            m->hss - m->hr,               /* right margin (in pixels) */
+            m->vfl - m->vse,              /* upper margin (in pixel lines) */
+            m->vss - m->vr,               /* lower margin (in pixel lines) */
+            m->hse - m->hss,              /* horizontal sync length (pixels) */
+            m->vse - m->vss);             /* vert sync length (pixel lines) */
+    printf ("    hsync low\n");
+    printf ("    vsync high\n");
+    printf ("endmode\n\n");
+    
+}
+
+
+
+
+/*
+ * vert_refresh() - as defined by the GTF Timing Standard, compute the
+ * Stage 1 Parameters using the vertical refresh frequency.  In other
+ * words: input a desired resolution and desired refresh rate, and
+ * output the GTF mode timings.
+ *
+ * XXX All the code is in place to compute interlaced modes, but I don't
+ * feel like testing it right now.
+ *
+ * XXX margin computations are implemented but not tested (nor used by
+ * XServer of fbset mode descriptions, from what I can tell).
+ */
+
+mode *vert_refresh (int h_pixels, int v_lines, float freq,
+                    int interlaced, int margins)
+{
+    float h_pixels_rnd;
+    float v_lines_rnd;
+    float v_field_rate_rqd;
+    float top_margin;
+    float bottom_margin;
+    float interlace;
+    float h_period_est;
+    float vsync_plus_bp;
+    float v_back_porch;
+    float total_v_lines;
+    float v_field_rate_est;
+    float h_period;
+    float v_field_rate;
+    float v_frame_rate;
+    float left_margin;
+    float right_margin;
+    float total_active_pixels;
+    float ideal_duty_cycle;
+    float h_blank;
+    float total_pixels;
+    float pixel_freq;
+    float h_freq;
+
+    float h_sync;
+    float h_front_porch;
+    float v_odd_front_porch_lines;
+
+    mode *m = (mode*) malloc (sizeof (mode));
+    
+    
+    /*  1. In order to give correct results, the number of horizontal
+     *  pixels requested is first processed to ensure that it is divisible
+     *  by the character size, by rounding it to the nearest character
+     *  cell boundary:
+     *
+     *  [H PIXELS RND] = ((ROUND([H PIXELS]/[CELL GRAN RND],0))*[CELLGRAN RND])
+     */
+    
+    h_pixels_rnd = rint((float) h_pixels / CELL_GRAN) * CELL_GRAN;
+    
+    print_value(1, "[H PIXELS RND]", h_pixels_rnd);
+
+    
+    /*  2. If interlace is requested, the number of vertical lines assumed
+     *  by the calculation must be halved, as the computation calculates
+     *  the number of vertical lines per field. In either case, the
+     *  number of lines is rounded to the nearest integer.
+     *   
+     *  [V LINES RND] = IF([INT RQD?]="y", ROUND([V LINES]/2,0),
+     *                                     ROUND([V LINES],0))
+     */
+
+    v_lines_rnd = interlaced ?
+            rint((float) v_lines) / 2.0 :
+            rint((float) v_lines);
+    
+    print_value(2, "[V LINES RND]", v_lines_rnd);
+    
+    
+    /*  3. Find the frame rate required:
+     *
+     *  [V FIELD RATE RQD] = IF([INT RQD?]="y", [I/P FREQ RQD]*2,
+     *                                          [I/P FREQ RQD])
+     */
+
+    v_field_rate_rqd = interlaced ? (freq * 2.0) : (freq);
+
+    print_value(3, "[V FIELD RATE RQD]", v_field_rate_rqd);
+    
+
+    /*  4. Find number of lines in Top margin:
+     *
+     *  [TOP MARGIN (LINES)] = IF([MARGINS RQD?]="Y",
+     *          ROUND(([MARGIN%]/100*[V LINES RND]),0),
+     *          0)
+     */
+
+    top_margin = margins ? rint(MARGIN_PERCENT / 100.0 * v_lines_rnd) : (0.0);
+
+    print_value(4, "[TOP MARGIN (LINES)]", top_margin);
+    
+
+    /*  5. Find number of lines in Bottom margin:
+     *
+     *  [BOT MARGIN (LINES)] = IF([MARGINS RQD?]="Y",
+     *          ROUND(([MARGIN%]/100*[V LINES RND]),0),
+     *          0)
+     */
+
+    bottom_margin = margins ? rint(MARGIN_PERCENT/100.0 * v_lines_rnd) : (0.0);
+
+    print_value(5, "[BOT MARGIN (LINES)]", bottom_margin);
+
+    
+    /*  6. If interlace is required, then set variable [INTERLACE]=0.5:
+     *   
+     *  [INTERLACE]=(IF([INT RQD?]="y",0.5,0))
+     */
+
+    interlace = interlaced ? 0.5 : 0.0;
+
+    print_value(6, "[INTERLACE]", interlace);
+    
+
+    /*  7. Estimate the Horizontal period
+     *
+     *  [H PERIOD EST] = ((1/[V FIELD RATE RQD]) - [MIN VSYNC+BP]/1000000) /
+     *                    ([V LINES RND] + (2*[TOP MARGIN (LINES)]) +
+     *                     [MIN PORCH RND]+[INTERLACE]) * 1000000
+     */
+
+    h_period_est = (((1.0/v_field_rate_rqd) - (MIN_VSYNC_PLUS_BP/1000000.0))
+                    / (v_lines_rnd + (2*top_margin) + MIN_PORCH + interlace)
+                    * 1000000.0);
+
+    print_value(7, "[H PERIOD EST]", h_period_est);
+    
+
+    /*  8. Find the number of lines in V sync + back porch:
+     *
+     *  [V SYNC+BP] = ROUND(([MIN VSYNC+BP]/[H PERIOD EST]),0)
+     */
+
+    vsync_plus_bp = rint(MIN_VSYNC_PLUS_BP/h_period_est);
+
+    print_value(8, "[V SYNC+BP]", vsync_plus_bp);
+    
+    
+    /*  9. Find the number of lines in V back porch alone:
+     *
+     *  [V BACK PORCH] = [V SYNC+BP] - [V SYNC RND]
+     *
+     *  XXX is "[V SYNC RND]" a typo? should be [V SYNC RQD]?
+     */
+    
+    v_back_porch = vsync_plus_bp - V_SYNC_RQD;
+    
+    print_value(9, "[V BACK PORCH]", v_back_porch);
+    
+
+    /*  10. Find the total number of lines in Vertical field period:
+     *
+     *  [TOTAL V LINES] = [V LINES RND] + [TOP MARGIN (LINES)] +
+     *                    [BOT MARGIN (LINES)] + [V SYNC+BP] + [INTERLACE] +
+     *                    [MIN PORCH RND]
+     */
+
+    total_v_lines = v_lines_rnd + top_margin + bottom_margin + vsync_plus_bp +
+        interlace + MIN_PORCH;
+    
+    print_value(10, "[TOTAL V LINES]", total_v_lines);
+    
+
+    /*  11. Estimate the Vertical field frequency:
+     *
+     *  [V FIELD RATE EST] = 1 / [H PERIOD EST] / [TOTAL V LINES] * 1000000
+     */
+
+    v_field_rate_est = 1.0 / h_period_est / total_v_lines * 1000000.0;
+    
+    print_value(11, "[V FIELD RATE EST]", v_field_rate_est);
+    
+
+    /*  12. Find the actual horizontal period:
+     *
+     *  [H PERIOD] = [H PERIOD EST] / ([V FIELD RATE RQD] / [V FIELD RATE EST])
+     */
+
+    h_period = h_period_est / (v_field_rate_rqd / v_field_rate_est);
+    
+    print_value(12, "[H PERIOD]", h_period);
+    
+
+    /*  13. Find the actual Vertical field frequency:
+     *
+     *  [V FIELD RATE] = 1 / [H PERIOD] / [TOTAL V LINES] * 1000000
+     */
+
+    v_field_rate = 1.0 / h_period / total_v_lines * 1000000.0;
+
+    print_value(13, "[V FIELD RATE]", v_field_rate);
+    
+
+    /*  14. Find the Vertical frame frequency:
+     *
+     *  [V FRAME RATE] = (IF([INT RQD?]="y", [V FIELD RATE]/2, [V FIELD RATE]))
+     */
+
+    v_frame_rate = interlaced ? v_field_rate / 2.0 : v_field_rate;
+
+    print_value(14, "[V FRAME RATE]", v_frame_rate);
+    
+
+    /*  15. Find number of pixels in left margin:
+     *
+     *  [LEFT MARGIN (PIXELS)] = (IF( [MARGINS RQD?]="Y",
+     *          (ROUND( ([H PIXELS RND] * [MARGIN%] / 100 /
+     *                   [CELL GRAN RND]),0)) * [CELL GRAN RND],
+     *          0))
+     */
+
+    left_margin = margins ?
+        rint(h_pixels_rnd * MARGIN_PERCENT / 100.0 / CELL_GRAN) * CELL_GRAN :
+        0.0;
+    
+    print_value(15, "[LEFT MARGIN (PIXELS)]", left_margin);
+    
+
+    /*  16. Find number of pixels in right margin:
+     *
+     *  [RIGHT MARGIN (PIXELS)] = (IF( [MARGINS RQD?]="Y",
+     *          (ROUND( ([H PIXELS RND] * [MARGIN%] / 100 /
+     *                   [CELL GRAN RND]),0)) * [CELL GRAN RND],
+     *          0))
+     */
+    
+    right_margin = margins ?
+        rint(h_pixels_rnd * MARGIN_PERCENT / 100.0 / CELL_GRAN) * CELL_GRAN :
+        0.0;
+    
+    print_value(16, "[RIGHT MARGIN (PIXELS)]", right_margin);
+    
+
+    /*  17. Find total number of active pixels in image and left and right
+     *  margins:
+     *
+     *  [TOTAL ACTIVE PIXELS] = [H PIXELS RND] + [LEFT MARGIN (PIXELS)] +
+     *                          [RIGHT MARGIN (PIXELS)]
+     */
+
+    total_active_pixels = h_pixels_rnd + left_margin + right_margin;
+    
+    print_value(17, "[TOTAL ACTIVE PIXELS]", total_active_pixels);
+    
+    
+    /*  18. Find the ideal blanking duty cycle from the blanking duty cycle
+     *  equation:
+     *
+     *  [IDEAL DUTY CYCLE] = [C'] - ([M']*[H PERIOD]/1000)
+     */
+
+    ideal_duty_cycle = C_PRIME - (M_PRIME * h_period / 1000.0);
+    
+    print_value(18, "[IDEAL DUTY CYCLE]", ideal_duty_cycle);
+    
+
+    /*  19. Find the number of pixels in the blanking time to the nearest
+     *  double character cell:
+     *
+     *  [H BLANK (PIXELS)] = (ROUND(([TOTAL ACTIVE PIXELS] *
+     *                               [IDEAL DUTY CYCLE] /
+     *                               (100-[IDEAL DUTY CYCLE]) /
+     *                               (2*[CELL GRAN RND])), 0))
+     *                       * (2*[CELL GRAN RND])
+     */
+
+    h_blank = rint(total_active_pixels *
+                   ideal_duty_cycle /
+                   (100.0 - ideal_duty_cycle) /
+                   (2.0 * CELL_GRAN)) * (2.0 * CELL_GRAN);
+    
+    print_value(19, "[H BLANK (PIXELS)]", h_blank);
+    
+
+    /*  20. Find total number of pixels:
+     *
+     *  [TOTAL PIXELS] = [TOTAL ACTIVE PIXELS] + [H BLANK (PIXELS)]
+     */
+
+    total_pixels = total_active_pixels + h_blank;
+    
+    print_value(20, "[TOTAL PIXELS]", total_pixels);
+    
+
+    /*  21. Find pixel clock frequency:
+     *
+     *  [PIXEL FREQ] = [TOTAL PIXELS] / [H PERIOD]
+     */
+    
+    pixel_freq = total_pixels / h_period;
+    
+    print_value(21, "[PIXEL FREQ]", pixel_freq);
+    
+
+    /*  22. Find horizontal frequency:
+     *
+     *  [H FREQ] = 1000 / [H PERIOD]
+     */
+
+    h_freq = 1000.0 / h_period;
+    
+    print_value(22, "[H FREQ]", h_freq);
+    
+
+
+    /* Stage 1 computations are now complete; I should really pass
+       the results to another function and do the Stage 2
+       computations, but I only need a few more values so I'll just
+       append the computations here for now */
+
+    
+
+    /*  17. Find the number of pixels in the horizontal sync period:
+     *
+     *  [H SYNC (PIXELS)] =(ROUND(([H SYNC%] / 100 * [TOTAL PIXELS] /
+     *                             [CELL GRAN RND]),0))*[CELL GRAN RND]
+     */
+
+    h_sync = rint(H_SYNC_PERCENT/100.0 * total_pixels / CELL_GRAN) * CELL_GRAN;
+
+    print_value(17, "[H SYNC (PIXELS)]", h_sync);
+    
+
+    /*  18. Find the number of pixels in the horizontal front porch period:
+     *
+     *  [H FRONT PORCH (PIXELS)] = ([H BLANK (PIXELS)]/2)-[H SYNC (PIXELS)]
+     */
+
+    h_front_porch = (h_blank / 2.0) - h_sync;
+
+    print_value(18, "[H FRONT PORCH (PIXELS)]", h_front_porch);
+    
+    
+    /*  36. Find the number of lines in the odd front porch period:
+     *
+     *  [V ODD FRONT PORCH(LINES)]=([MIN PORCH RND]+[INTERLACE])
+     */
+    
+    v_odd_front_porch_lines = MIN_PORCH + interlace;
+    
+    print_value(36, "[V ODD FRONT PORCH(LINES)]", v_odd_front_porch_lines);
+    
+
+    /* finally, pack the results in the mode struct */
+    
+    m->hr  = (int) (h_pixels_rnd);
+    m->hss = (int) (h_pixels_rnd + h_front_porch);
+    m->hse = (int) (h_pixels_rnd + h_front_porch + h_sync);
+    m->hfl = (int) (total_pixels);
+
+    m->vr  = (int) (v_lines_rnd);
+    m->vss = (int) (v_lines_rnd + v_odd_front_porch_lines);
+    m->vse = (int) (int) (v_lines_rnd + v_odd_front_porch_lines + V_SYNC_RQD);
+    m->vfl = (int) (total_v_lines);
+
+    m->pclk   = pixel_freq;
+    m->h_freq = h_freq;
+    m->v_freq = freq;
+
+    return m;
+    
+}
+
+
+
+
+/*
+ * parse_command_line() - parse the command line and return an
+ * alloced structure containing the results.  On error print usage
+ * and return NULL.
+ */ 
+
+options *parse_command_line (int argc, char *argv[])
+{
+    int n;
+
+    options *o = (options *) calloc (1, sizeof (options));
+
+    if (argc < 4) goto bad_option;
+
+    o->x = atoi (argv[1]);
+    o->y = atoi (argv[2]);
+    o->v_freq = atof (argv[3]);
+
+    /* XXX should check for errors in the above */
+    
+    n = 4;
+
+    while (n < argc) {
+        if ((strcmp (argv[n], "-v") == 0) ||
+            (strcmp (argv[n], "--verbose") == 0)) {
+            global_verbose = 1;
+        } else if ((strcmp (argv[n], "-f") == 0) ||
+                   (strcmp (argv[n], "--fbmode") == 0)) {
+            o->fbmode = 1;
+        } else if ((strcmp (argv[n], "-x") == 0) ||
+		   (strcmp (argv[n], "--xorgmode") == 0) ||
+                   (strcmp (argv[n], "--xf86mode") == 0)) {
+            o->xorgmode = 1;
+        } else {
+            goto bad_option;
+        }
+        
+        n++;
+    }
+
+    /* if neither xorgmode nor fbmode were requested, default to
+       xorgmode */
+
+    if (!o->fbmode && !o->xorgmode) o->xorgmode = 1;
+    
+    return o;
+    
+ bad_option:
+
+    fprintf (stderr, "\n");
+    fprintf (stderr, "usage: %s x y refresh [-v|--verbose] "
+             "[-f|--fbmode] [-x|--xorgmode]\n", argv[0]);
+
+    fprintf (stderr, "\n");
+    
+    fprintf (stderr, "            x : the desired horizontal "
+             "resolution (required)\n");
+    fprintf (stderr, "            y : the desired vertical "
+             "resolution (required)\n");
+    fprintf (stderr, "      refresh : the desired refresh "
+             "rate (required)\n");
+    fprintf (stderr, " -v|--verbose : enable verbose printouts "
+             "(traces each step of the computation)\n");
+    fprintf (stderr, "  -f|--fbmode : output an fbset(8)-style mode "
+             "description\n");
+    fprintf (stderr, " -x|--xorgmode : output an "__XSERVERNAME__"-style mode "
+             "description (this is the default\n"
+             "                if no mode description is requested)\n");
+    
+    fprintf (stderr, "\n");
+    
+    free (o);
+    return NULL;
+
+}
+
+
+
+int main (int argc, char *argv[])
+{
+    mode *m;
+    options *o;
+
+    o = parse_command_line (argc, argv);
+    if (!o) exit (1);
+    
+    m = vert_refresh (o->x, o->y, o->v_freq, 0, 0);
+    if (!m) exit (1);
+
+    if (o->xorgmode)
+        print_xf86_mode(m);
+    
+    if (o->fbmode)
+        print_fb_mode(m);
+    
+    return 0;
+    
+}
diff --git a/xorg-server/hw/xfree86/vbe/vbe.c b/xorg-server/hw/xfree86/vbe/vbe.c
index 06a628457..6ecca6858 100644
--- a/xorg-server/hw/xfree86/vbe/vbe.c
+++ b/xorg-server/hw/xfree86/vbe/vbe.c
@@ -170,7 +170,7 @@ vbeFree(vbeInfoPtr pVbe)
 static Bool
 vbeProbeDDC(vbeInfoPtr pVbe)
 {
-    char *ddc_level;
+    const char *ddc_level;
     int screen = pVbe->pInt10->scrnIndex;
     
     if (pVbe->ddc == DDC_NONE)
diff --git a/xorg-server/hw/xfree86/x86emu/debug.c b/xorg-server/hw/xfree86/x86emu/debug.c
index 5eda90805..04d0741e0 100644
--- a/xorg-server/hw/xfree86/x86emu/debug.c
+++ b/xorg-server/hw/xfree86/x86emu/debug.c
@@ -172,7 +172,7 @@ void x86emu_decode_printf (char *x)
 void x86emu_decode_printf2 (char *x, int y)
 {
 	char temp[100];
-	sprintf(temp,x,y);
+	snprintf(temp,sizeof(temp),x,y);
 	sprintf(M.x86.decoded_buf+M.x86.enc_str_pos,"%s",temp);
 	M.x86.enc_str_pos += strlen(temp);
 }