--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/XORG_NV/sun-src/xc/programs/Xserver/hw/xfree86/ddc/xf86Mode.c Thu Apr 13 17:50:42 2006 -0700
@@ -0,0 +1,2523 @@
+/* $XdotOrg: xc/programs/Xserver/hw/xfree86/common/xf86Mode.c,v 1.4 2005/05/18 10:31:53 eich Exp $ */
+/* $XFree86: xc/programs/Xserver/hw/xfree86/common/xf86Mode.c,v 1.69 2003/10/08 14:58:28 dawes Exp $ */
+/*
+ * Copyright (c) 1997-2003 by The XFree86 Project, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the name of the copyright holder(s)
+ * and author(s) shall not be used in advertising or otherwise to promote
+ * the sale, use or other dealings in this Software without prior written
+ * authorization from the copyright holder(s) and author(s).
+ */
+
+/*
+ * Authors: Dirk Hohndel <[email protected]>
+ * David Dawes <[email protected]>
+ * Marc La France <[email protected]>
+ * ... 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 "os.h"
+#include "servermd.h"
+#include "mibank.h"
+#include "globals.h"
+#include "xf86.h"
+#include "xf86Priv.h"
+#include "xf86DDC.h"
+
+
+static void PrintModeline(int scrnIndex,DisplayModePtr mode);
+
+/*
+ * 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 is found";
+ 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_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");
+ }
+ }
+}
+
+
+/*
+ * xf86FindClockRangeForMode() [... like the name says ...]
+ */
+static ClockRangePtr
+xf86FindClockRangeForMode(ClockRangePtr clockRanges, DisplayModePtr p)
+{
+ ClockRangePtr cp;
+
+ for (cp = clockRanges; ; cp = cp->next)
+ if (!cp ||
+ ((p->Clock >= cp->minClock) &&
+ (p->Clock <= cp->maxClock) &&
+ (cp->interlaceAllowed || !(p->Flags & V_INTERLACE)) &&
+ (cp->doubleScanAllowed ||
+ ((p->VScan <= 1) && !(p->Flags & V_DBLSCAN)))))
+ 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) && (p->type == M_T_BUILTIN))
+ 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;
+}
+
+static double
+ModeHSync(DisplayModePtr mode)
+{
+ double hsync = 0.0;
+
+ if (mode->HSync > 0.0)
+ hsync = mode->HSync;
+ else if (mode->HTotal > 0)
+ hsync = (float)mode->Clock / (float)mode->HTotal;
+
+ return hsync;
+}
+
+static double
+ModeVRefresh(DisplayModePtr mode)
+{
+ double refresh = 0.0;
+
+ if (mode->VRefresh > 0.0)
+ refresh = mode->VRefresh;
+ else if (mode->HTotal > 0 && mode->VTotal > 0) {
+ refresh = mode->Clock * 1000.0 / mode->HTotal / mode->VTotal;
+ if (mode->Flags & V_INTERLACE)
+ refresh *= 2.0;
+ if (mode->Flags & V_DBLSCAN)
+ refresh /= 2.0;
+ if (mode->VScan > 1)
+ refresh /= (float)(mode->VScan);
+ }
+ return refresh;
+}
+
+/*
+ * 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;
+ Bool haveBuiltin, haveEdid;
+
+ 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);
+ }
+
+ haveBuiltin = FALSE;
+ haveEdid = FALSE;
+ /* Scan the mode pool for matching names */
+ for (p = scrp->modePool; p != NULL; p = p->next) {
+ if (strcmp(p->name, modep->name) == 0) {
+ /*
+ * Requested mode is a built-in mode. Don't let the user
+ * override it.
+ * Since built-in modes always come before user specified
+ * modes it will always be found first.
+ */
+ if (p->type & M_T_BUILTIN) {
+ haveBuiltin = TRUE;
+ }
+
+ if (p->type & M_T_EDID) {
+ haveEdid = TRUE;
+ }
+
+ if ((haveBuiltin && !(p->type & M_T_BUILTIN)) ||
+ (haveEdid && !(p->type & M_T_EDID) && (modep->type & M_T_EDID)))
+ continue;
+
+ /* 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) ||
+ ((p->type & M_T_EDID) && (modep->type & M_T_EDID)))
+ 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 = ModeVRefresh(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 = ModeVRefresh(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 || 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;
+}
+
+
+/*
+ * xf86SetModeCrtc
+ *
+ * Initialises the Crtc parameters for a mode. The initialisation includes
+ * adjustments for interlaced and double scan modes.
+ */
+static void
+xf86SetModeCrtc(DisplayModePtr p, int adjustFlags)
+{
+ if ((p == NULL) || (((p->type & M_T_CRTC_C) == M_T_BUILTIN) && (p->HSync)))
+ return;
+
+ p->CrtcHDisplay = p->HDisplay;
+ p->CrtcHSyncStart = p->HSyncStart;
+ p->CrtcHSyncEnd = p->HSyncEnd;
+ p->CrtcHTotal = p->HTotal;
+ p->CrtcHSkew = p->HSkew;
+ p->CrtcVDisplay = p->VDisplay;
+ p->CrtcVSyncStart = p->VSyncStart;
+ p->CrtcVSyncEnd = p->VSyncEnd;
+ p->CrtcVTotal = p->VTotal;
+ if (p->Flags & V_INTERLACE) {
+ if (adjustFlags & INTERLACE_HALVE_V) {
+ p->CrtcVDisplay /= 2;
+ p->CrtcVSyncStart /= 2;
+ p->CrtcVSyncEnd /= 2;
+ p->CrtcVTotal /= 2;
+ }
+ /* Force interlaced modes to have an odd VTotal */
+ /* maybe we should only do this when INTERLACE_HALVE_V is set? */
+ p->CrtcVTotal |= 1;
+ }
+
+ if (p->Flags & V_DBLSCAN) {
+ p->CrtcVDisplay *= 2;
+ p->CrtcVSyncStart *= 2;
+ p->CrtcVSyncEnd *= 2;
+ p->CrtcVTotal *= 2;
+ }
+ if (p->VScan > 1) {
+ p->CrtcVDisplay *= p->VScan;
+ p->CrtcVSyncStart *= p->VScan;
+ p->CrtcVSyncEnd *= p->VScan;
+ p->CrtcVTotal *= p->VScan;
+ }
+ p->CrtcHAdjusted = FALSE;
+ p->CrtcVAdjusted = FALSE;
+
+ /*
+ * XXX
+ *
+ * The following is taken from VGA, but applies to other cores as well.
+ */
+ p->CrtcVBlankStart = min(p->CrtcVSyncStart, p->CrtcVDisplay);
+ p->CrtcVBlankEnd = max(p->CrtcVSyncEnd, p->CrtcVTotal);
+ if ((p->CrtcVBlankEnd - p->CrtcVBlankStart) >= 127) {
+ /*
+ * V Blanking size must be < 127.
+ * Moving blank start forward is safer than moving blank end
+ * back, since monitors clamp just AFTER the sync pulse (or in
+ * the sync pulse), but never before.
+ */
+ p->CrtcVBlankStart = p->CrtcVBlankEnd - 127;
+ /*
+ * If VBlankStart is now > VSyncStart move VBlankStart
+ * to VSyncStart using the maximum width that fits into
+ * VTotal.
+ */
+ if (p->CrtcVBlankStart > p->CrtcVSyncStart) {
+ p->CrtcVBlankStart = p->CrtcVSyncStart;
+ p->CrtcVBlankEnd = min(p->CrtcHBlankStart + 127, p->CrtcVTotal);
+ }
+ }
+ p->CrtcHBlankStart = min(p->CrtcHSyncStart, p->CrtcHDisplay);
+ p->CrtcHBlankEnd = max(p->CrtcHSyncEnd, p->CrtcHTotal);
+
+ if ((p->CrtcHBlankEnd - p->CrtcHBlankStart) >= 63 * 8) {
+ /*
+ * H Blanking size must be < 63*8. Same remark as above.
+ */
+ p->CrtcHBlankStart = p->CrtcHBlankEnd - 63 * 8;
+ if (p->CrtcHBlankStart > p->CrtcHSyncStart) {
+ p->CrtcHBlankStart = p->CrtcHSyncStart;
+ p->CrtcHBlankEnd = min(p->CrtcHBlankStart + 63 * 8, p->CrtcHTotal);
+ }
+ }
+}
+
+/*
+ * 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;
+ }
+
+#ifdef DEBUG
+ ErrorF("xf86CheckModeForMonitor(%p %s, %p %s)\n",
+ mode, mode->name, monitor, monitor->id);
+#endif
+
+ if (monitor->DDC) {
+ xf86MonPtr DDC = (xf86MonPtr)(monitor->DDC);
+ struct detailed_monitor_section* detMon;
+ struct monitor_ranges *mon_range;
+ int i;
+
+ mon_range = NULL;
+ for (i = 0; i < 4; i++) {
+ detMon = &DDC->det_mon[i];
+ if(detMon->type == DS_RANGES) {
+ mon_range = &detMon->section.ranges;
+ }
+ }
+ if (mon_range) {
+ /* mode->Clock in kHz, DDC in MHz */
+ if (mon_range->max_clock < 2550 &&
+ mode->Clock / 1000.0 > mon_range->max_clock) {
+ xf86Msg(X_WARNING,
+ "(%s,%s) mode clock %gMHz exceeds DDC maximum %dMHz\n",
+ mode->name, monitor->id,
+ mode->Clock/1000.0, mon_range->max_clock);
+ }
+ }
+ }
+
+ /* 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 = ModeHSync(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 = ModeVRefresh(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;
+
+ 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;
+ }
+
+#ifdef DEBUG
+ ErrorF("xf86InitialCheckModeForDriver(%p, %p %s, %p, 0x%x, %d, %d, %d)\n",
+ scrp, mode, mode->name , clockRanges, strategy, maxPitch, virtualX, virtualY);
+#endif
+
+ /* 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 = ModeHSync(mode);
+ mode->VRefresh = ModeVRefresh(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)
+{
+ ClockRangesPtr cp;
+ int i, k, gap, minimumGap = CLOCK_TOLERANCE + 1;
+ int extraFlags = 0;
+ int clockIndex = -1;
+ int MulFactor = 1;
+ int DivFactor = 1;
+ int ModePrivFlags = 0;
+ Bool allowDiv2;
+ 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 ((cp->minClock <= mode->Clock) &&
+ (cp->maxClock >= mode->Clock) &&
+ (cp->interlaceAllowed || !(mode->Flags & V_INTERLACE)) &&
+ (cp->doubleScanAllowed ||
+ ((!(mode->Flags & V_DBLSCAN)) && (mode->VScan <= 1))))
+ 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 ((cp->minClock <= mode->Clock) &&
+ (cp->maxClock >= mode->Clock) &&
+ (cp->interlaceAllowed || !(mode->Flags & V_INTERLACE)) &&
+ (cp->doubleScanAllowed ||
+ ((!(mode->Flags & V_DBLSCAN)) && (mode->VScan <= 1)))) {
+
+ /*
+ * Clock is in range, so if it is not a programmable clock,
+ * find a matching clock.
+ */
+
+ allowDiv2 = (cp->strategy & LOOKUP_CLKDIV2) != 0;
+ i = xf86GetNearestClock(scrp, mode->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((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
+modestrcmp(const char **p1, const char **p2)
+{
+ char str1[16], str2[16], *q1, *q2;
+ int len1 = strlen(*p1);
+ int len2 = strlen(*p2);
+
+ if ((len1 > 15) || (len2 > 15))
+ return 0;
+ strncpy(str1, *p1, len1); strncpy(str2, *p2, len2);
+ str1[len1] = str2[len2] = 0;
+ q1 = strchr(str1, 'x'); q2 = strchr(str2, 'x');
+ if (q1 && q2)
+ *q1 = *q2 = 0;
+ else
+ return 0;
+ if (!str1 || !(q1+1) || !str2 || !(q2+1))
+ return 0;
+ if ((atoi(str1) * atoi(q1+1)) < (atoi(str2) * atoi(q2+1)))
+ return 1;
+ else if ((atoi(str1) * atoi(q1+1)) > (atoi(str2) * atoi(q2+1)))
+ return -1;
+
+ return 0;
+}
+
+
+extern DisplayModePtr xf86CVTMode(int HDisplay, int VDisplay, float VRefresh,
+ Bool Reduced, Bool Interlaced);
+
+/*
+ * 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 = TRUE;
+ Bool fallbackMode = FALSE;
+ int saveType;
+ PixmapFormatRec *BankFormat;
+ ClockRangePtr cp;
+ ClockRangesPtr storeClockRanges;
+ struct monitor_ranges *mon_range = NULL;
+ double targetRefresh = 0.0;
+ int numTimings = 0;
+ range hsync[MAX_HSYNC];
+ range vrefresh[MAX_VREFRESH];
+ DisplayModeRec dt_modes[DET_TIMINGS];
+ char *dt_mode_names[DET_TIMINGS+1];
+ char *std_mode_names[STD_TIMINGS+STD_ADD_TIMINGS+1];
+ char *fallback_mode[] = {"1024x768", NULL};
+ int numEdidModes;
+ int numDtModes = 0;
+ int numDtModelines = 0;
+ int numStdModes = 0;
+ char **rmodeNames;
+ DisplayModePtr modePool;
+
+#ifdef DEBUG
+ ErrorF("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
+ );
+#endif
+
+ /* 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 DDC is empty, try VBE DDC probing, since xf86DoEDID_DDC2
+ * probing, which at least nv and ati drivers count on, sometimes
+ * fails for some CRT monitors
+ */
+#ifdef sun
+#ifdef improve_for_nvidia_driver
+ /*
+ * With nvidia driver, EDID modes are added to availModes with type 0,
+ * reconstruct them.
+ */
+ if (!strcmp (scrp->driverName, "nvidia")) {
+ for (p = availModes; p != NULL; p = p->next)
+ if (p->type == 0) {
+ dt_modes[numDtModelines] = *p;
+ dt_modes[numDtModelines].type = M_T_EDID;
+ dt_mode_names[numDtModes++] = xnfstrdup(p->name);
+ dt_mode_names[numDtModes] = NULL;
+ }
+ /*
+ * If monitor probing failed with nvidia driver, try the results from
+ * VBE probing
+ */
+ }
+ if ((!scrp->monitor->DDC) && (strcmp (scrp->driverName, "nvidia") ||
+ (!numDtModelines))) {
+#else
+ if ((!scrp->monitor->DDC) && strcmp (scrp->driverName, "nvidia")) {
+#endif
+#else
+ if (!scrp->monitor->DDC) {
+#endif
+ int entityIndex = scrp->entityList[0];
+
+ if ((xf86LoadSubModule(scrp, "vbe")) && xf86FallbackDDCProbe)
+ scrp->monitor->DDC = xf86FallbackDDCProbe (entityIndex, scrp);
+ }
+
+ /*
+ * Probe monitor so that we can enforce/warn about its limits.
+ * If one or more DS_RANGES descriptions are present, use the parameters
+ * that they provide. Otherwise, deduce limits based on the modes that
+ * are shown as supported via standard and detailed timings.
+ *
+ * XXX The full potential of the DDC/EDID data still isn't being tapped.
+ */
+ if (scrp->monitor->DDC) {
+ MonPtr monitor = scrp->monitor;
+ xf86MonPtr DDC = (xf86MonPtr)(scrp->monitor->DDC);
+ int i, j, c;
+ float hmin = 1e6, hmax = 0.0, vmin = 1e6, vmax = 0.0;
+ float h;
+ struct std_timings *t;
+ struct detailed_timings *dt;
+ char name[20];
+ int h_dpi, h_dpi_max = 0;
+ int dt_name_max = 0, std_name_max = 0;
+
+ numTimings = 0;
+ for (i = 0; i < DET_TIMINGS; i++) {
+ switch (DDC->det_mon[i].type) {
+ case DS_RANGES:
+ mon_range = &DDC->det_mon[i].section.ranges;
+ hsync[numTimings].lo = mon_range->min_h;
+ hsync[numTimings].hi = mon_range->max_h;
+ vrefresh[numTimings].lo = mon_range->min_v;
+ vrefresh[numTimings].hi = mon_range->max_v;
+ numTimings++;
+ break;
+
+ case DS_STD_TIMINGS:
+ t = DDC->det_mon[i].section.std_t;
+ for (j = 0; j < STD_ADD_TIMINGS; j++) {
+ if (t[j].hsize > 256) { /* sanity check */
+ if (t[j].refresh < vmin)
+ vmin = t[i].refresh;
+ if (t[j].refresh > vmax)
+ vmax = t[i].refresh;
+ /*
+ * For typical modes this is a reasonable estimate
+ * of the horizontal sync rate.
+ */
+ h = t[j].refresh * 1.07 * t[j].vsize / 1000.0;
+ if (h < hmin)
+ hmin = h;
+ if (h > hmax)
+ hmax = h;
+ snprintf(name, 20, "%dx%d", t[j].hsize, t[j].vsize);
+ std_mode_names[numStdModes++] = xnfstrdup(name);
+ std_mode_names[numStdModes] = NULL;
+ if ((t[j].hsize * t[j].vsize) > std_name_max) {
+ std_name_max = t[j].hsize * t[j].vsize;
+ }
+ }
+ }
+ break;
+
+ case DT:
+ dt = &DDC->det_mon[i].section.d_timings;
+ if (dt->clock > 15000000) { /* sanity check */
+ float v;
+ h = (float)dt->clock / (dt->h_active + dt->h_blanking);
+ v = h / (dt->v_active + dt->v_blanking);
+ h /= 1000.0;
+ if (dt->interlaced)
+ v /= 2.0;
+
+ if (v < vmin)
+ vmin = v;
+ if (v > vmax)
+ vmax = v;
+ if (h < hmin)
+ hmin = h;
+ if (h > hmax)
+ hmax = h;
+ memset(&dt_modes[numDtModelines], '\0', sizeof(DisplayModeRec));
+ dt_modes[numDtModelines].HSync = 0.0;
+ dt_modes[numDtModelines].type = M_T_EDID;
+ dt_modes[numDtModelines].Clock = dt->clock/1000.0;
+ dt_modes[numDtModelines].HDisplay = dt->h_active;
+ dt_modes[numDtModelines].HSyncStart = dt->h_sync_off + dt->h_active;
+ dt_modes[numDtModelines].HSyncEnd = dt->h_sync_off +
+ dt->h_sync_width + dt->h_active;
+ dt_modes[numDtModelines].HTotal = dt->h_active + dt->h_blanking;
+ dt_modes[numDtModelines].VDisplay = dt->v_active;
+ dt_modes[numDtModelines].VSyncStart = dt->v_sync_off + dt->v_active;
+ dt_modes[numDtModelines].VSyncEnd = dt->v_sync_off +
+ dt->v_sync_width + dt->v_active;
+ dt_modes[numDtModelines].VTotal = dt->v_active + dt->v_blanking;
+ if (dt->sync == 0x03) {
+ if (dt->misc & 0x02)
+ dt_modes[numDtModelines].Flags |= V_PVSYNC;
+ else
+ dt_modes[numDtModelines].Flags |= V_NVSYNC;
+ if (dt->misc & 0x01)
+ dt_modes[numDtModelines].Flags |= V_PHSYNC;
+ else
+ dt_modes[numDtModelines].Flags |= V_NHSYNC;
+ }
+ if (dt->sync == 0x02) {
+ dt_modes[numDtModelines].Flags |= V_NHSYNC;
+ if (dt->misc & 0x01)
+ dt_modes[numDtModelines].Flags |= V_PCSYNC;
+ else
+ dt_modes[numDtModelines].Flags |= V_NCSYNC;
+ }
+ if (dt->interlaced)
+ dt_modes[numDtModelines].Flags |= V_INTERLACE;
+ snprintf(name, 20, "%dx%d", dt->h_active, dt->v_active);
+ dt_modes[numDtModelines].name = xnfstrdup(name);
+ c = numDtModelines++;
+ /*
+ * Analog and if qualified for reduced blanking, get better results
+ * with cvt calculated timing.
+ */
+ if ((DDC->features.input_type == 0) &&
+ (((dt_modes[c].HDisplay * 5 / 4) & ~0x07) > dt_modes[c].HTotal)) {
+ DisplayModeRec *cvtmode;
+
+ cvtmode = xf86CVTMode(dt->h_active, dt->v_active,
+ (double) ModeVRefresh(&dt_modes[c]), TRUE, FALSE);
+ memcpy(&dt_modes[c], cvtmode, sizeof(DisplayModeRec));
+ dt_modes[c].type = M_T_EDID;
+ }
+
+ /* Do not validate modes with too high dpi */
+ h_dpi = dt->h_active/(dt->h_size/25.4);
+ if (h_dpi < 148) {
+ dt_mode_names[numDtModes++] = xnfstrdup(name);
+ dt_mode_names[numDtModes] = NULL;
+ }
+ if (h_dpi_max < h_dpi) {
+ h_dpi_max = h_dpi;
+ dt_name_max = dt->h_active * dt->v_active;
+ }
+ }
+ break;
+ }
+
+ if (numTimings > MAX_HSYNC)
+ break;
+ }
+
+ for (i = 0; i < STD_TIMINGS; i++) {
+ t = &DDC->timings2[i];
+ if (t->hsize > 256) { /* sanity check */
+ if (t->refresh < vmin)
+ vmin = t->refresh;
+ if (t->refresh > vmax)
+ vmax = t->refresh;
+ /*
+ * For typical modes this is a reasonable estimate
+ * of the horizontal sync rate.
+ */
+ h = t->refresh * 1.07 * t->vsize / 1000.0;
+ if (h < hmin)
+ hmin = h;
+ if (h > hmax)
+ hmax = h;
+ snprintf(name, 20, "%dx%d", t->hsize, t->vsize);
+ std_mode_names[numStdModes++] = xnfstrdup(name);
+ std_mode_names[numStdModes] = NULL;
+ if ((t->hsize * t->vsize) > std_name_max) {
+ std_name_max = t->hsize * t->vsize;
+ }
+ }
+ }
+
+
+ /* Don't validate modes with too low dpi in detailed timing sector */
+ if (numDtModelines && (h_dpi_max < 86) && numStdModes &&
+ (std_name_max > dt_name_max))
+ numDtModes = 0;
+
+ if (numTimings == 0) {
+ t = DDC->timings2;
+ for (i = 0; i < STD_TIMINGS; i++) {
+ if (t[i].hsize > 256) { /* sanity check */
+ if (t[i].refresh < vmin)
+ vmin = t[i].refresh;
+ if (t[i].refresh > vmax)
+ vmax = t[i].refresh;
+ /*
+ * For typical modes this is a reasonable estimate
+ * of the horizontal sync rate.
+ */
+ h = t[i].refresh * 1.07 * t[i].vsize / 1000.0;
+ if (h < hmin)
+ hmin = h;
+ if (h > hmax)
+ hmax = h;
+ }
+ }
+
+ if (hmax > 0.0) {
+ hsync[numTimings].lo = hmin;
+ hsync[numTimings].hi = hmax;
+ vrefresh[numTimings].lo = vmin;
+ vrefresh[numTimings].hi = vmax;
+ numTimings++;
+ }
+ }
+
+ if (numTimings > 0) {
+
+#ifdef DEBUG
+ for (i = 0; i < numTimings; i++) {
+ ErrorF("DDC - Hsync %.1f-%.1f kHz - Vrefresh %.1f-%.1f Hz\n",
+ hsync[i].lo, hsync[i].hi,
+ vrefresh[i].lo, vrefresh[i].hi);
+ }
+#endif
+
+#define DDC_SYNC_TOLERANCE SYNC_TOLERANCE
+ if (monitor->nHsync > 0) {
+ for (i = 0; i < monitor->nHsync; i++) {
+ Bool good = FALSE;
+ for (j = 0; j < numTimings; j++) {
+ if ((1.0 - DDC_SYNC_TOLERANCE) * hsync[j].lo <=
+ monitor->hsync[i].lo &&
+ (1.0 + DDC_SYNC_TOLERANCE) * hsync[j].hi >=
+ monitor->hsync[i].hi) {
+ good = TRUE;
+ break;
+ }
+ }
+ if (!good) {
+ xf86DrvMsg(scrp->scrnIndex, X_WARNING,
+ "config file hsync range %g-%gkHz not within DDC "
+ "hsync ranges.\n",
+ monitor->hsync[i].lo, monitor->hsync[i].hi);
+ }
+ }
+ }
+
+ if (monitor->nVrefresh > 0) {
+ for (i = 0; i < monitor->nVrefresh; i++) {
+ Bool good = FALSE;
+ for (j = 0; j < numTimings; j++) {
+ if ((1.0 - DDC_SYNC_TOLERANCE) * vrefresh[j].lo <=
+ monitor->vrefresh[0].lo &&
+ (1.0 + DDC_SYNC_TOLERANCE) * vrefresh[j].hi >=
+ monitor->vrefresh[0].hi) {
+ good = TRUE;
+ break;
+ }
+ }
+ if (!good) {
+ xf86DrvMsg(scrp->scrnIndex, X_WARNING,
+ "config file vrefresh range %g-%gHz not within DDC "
+ "vrefresh ranges.\n",
+ monitor->vrefresh[i].lo, monitor->vrefresh[i].hi);
+ }
+ }
+ }
+ }
+ }
+
+ /*
+ * 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 = "";
+
+ 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 = 28;
+ scrp->monitor->hsync[0].hi = 60;
+ scrp->monitor->nHsync = 1;
+ }
+ type = "default ";
+ }
+ 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 = 43;
+ scrp->monitor->vrefresh[0].hi = 72;
+ scrp->monitor->nVrefresh = 1;
+ }
+ type = "default ";
+ }
+ 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);
+ }
+ }
+
+ /*
+ * Store the clockRanges for later use by the VidMode extension. Must
+ * also store the strategy, since ClockDiv2 flag is stored there.
+ */
+ storeClockRanges = scrp->clockRanges;
+ while (storeClockRanges != NULL) {
+ storeClockRanges = storeClockRanges->next;
+ }
+ for (cp = clockRanges; cp != NULL; cp = cp->next,
+ storeClockRanges = storeClockRanges->next) {
+ storeClockRanges = xnfalloc(sizeof(ClockRanges));
+ if (scrp->clockRanges == NULL)
+ scrp->clockRanges = storeClockRanges;
+ memcpy(storeClockRanges, cp, sizeof(ClockRange));
+ storeClockRanges->strategy = strategy;
+ }
+
+ /* Determine which pixmap format to pass to miScanLineWidth() */
+ 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] ==
+ miScanLineWidth(virtualX, virtualY, linePitches[i],
+ apertureSize, BankFormat, pitchInc))) {
+ linePitch = linePitches[i];
+ break;
+ }
+ }
+ } else {
+ linePitch = miScanLineWidth(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;
+ }
+
+ /* 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) {
+ r = availModes;
+ q = NULL;
+ for (i = 0; ; ) {
+ if (i < numDtModelines) {
+ DisplayModePtr s;
+
+ p = &dt_modes[i];
+ for (s = availModes; s != NULL; s = s->next) {
+ /*
+ * Don't prepend EDID mode if there exits a user-defined or
+ * built-in mode having the same name.
+ */
+ if (((s->type & M_T_USERDEF) || (s->type & M_T_BUILTIN)) &&
+ (!strcmp(p->name, s->name)))
+ break;
+ }
+ if (s) {
+ xf86DrvMsg(scrp->scrnIndex, X_INFO, "EDID Modeline \"%s\" %.1fMHz not prepended to Modeline database:\n",
+ p->name, p->Clock/1000.0);
+ xf86DrvMsg(scrp->scrnIndex, X_INFO, " -- overridden by %s Modeline \"%s\" %.1fMHz.\n",
+ (s->type|M_T_USERDEF) ? "user" : "builtin", s->name, s->Clock/1000.0);
+ i++;
+ continue;
+ }
+ xf86DrvMsg(scrp->scrnIndex, X_INFO, "Prepend EDID Modeline \"%s\" %.1fMHz to Modeline database\n",
+ p->name, p->Clock/1000.0);
+ }
+ else {
+ if ((p = r) == NULL)
+ break;
+ else {
+#ifdef sun
+#ifdef improve_for_nvidia_driver
+ /*
+ * Type 0 modes are EDID modes added by nvidia driver, ignore
+ * them because they were converted to type EDID in dt_modes[]
+ * and have been prepended.
+ */
+ if (p->type == 0) {
+ r = r->next;
+ continue;
+ }
+#endif
+#endif
+ }
+ }
+
+ status = xf86InitialCheckModeForDriver(scrp, p, clockRanges,
+ strategy, maxPitch,
+ virtualX, virtualY);
+
+ 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 {
+ char *typestring;
+
+ switch (p->type) {
+ case M_T_BUILTIN:
+ typestring = xnfstrdup("builtin");
+ break;
+ case M_T_USERDEF:
+ typestring = xnfstrdup("user");
+ break;
+ case M_T_EDID:
+ typestring = xnfstrdup("EDID");
+ break;
+ case M_T_DEFAULT:
+ typestring = xnfstrdup("default");
+ break;
+ default:
+ typestring = xnfstrdup("");
+ break;
+ }
+ xf86DrvMsg(scrp->scrnIndex, X_INFO,
+ "Not including %s \"%s\" %.1fMHz (%s) in pool\n", typestring,
+ p->name, p->Clock/1000.0, xf86ModeStatusToString(status));
+ }
+ if (i < numDtModelines)
+ i++;
+ else
+ r = r->next;
+ }
+
+ 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;
+ }
+ }
+
+ /*
+ * Go through the mode pool and see if any modes match the target
+ * refresh rate, (if specified). If no modes match, abandon the target.
+ */
+ targetRefresh = xf86SetRealOption(scrp->options,
+ "TargetRefresh", 0.0);
+ if (targetRefresh > 0.0) {
+ for (p = scrp->modePool; p != NULL; p = p->next) {
+ if (ModeVRefresh(p) > targetRefresh * (1.0 - SYNC_TOLERANCE))
+ break;
+ }
+ if (!p)
+ targetRefresh = 0.0;
+ }
+
+ if (targetRefresh > 0.0) {
+ xf86DrvMsg(scrp->scrnIndex, X_CONFIG,
+ "Target refresh rate is %.1f Hz\n", targetRefresh);
+ }
+
+ /*
+ * Allocate one entry in scrp->modes for each named mode.
+ */
+ while (scrp->modes)
+ xf86DeleteMode(&scrp->modes, scrp->modes);
+
+ if (((rmodeNames = modeNames) == NULL) || (rmodeNames[0] == NULL)) {
+ /* Use EDID modes */
+ userModes = FALSE;
+ if (numDtModes) {
+ rmodeNames = dt_mode_names;
+ numEdidModes = numDtModes;
+ }
+ else if (numStdModes) {
+ rmodeNames = std_mode_names;
+ numEdidModes = numStdModes;
+ } else {
+ fallbackMode = TRUE;
+ rmodeNames = fallback_mode;
+ numEdidModes = 1;
+ }
+
+ if ((rmodeNames) && (rmodeNames != modeNames))
+ /* Sort and make them unique */
+ qsort((void *) rmodeNames, numEdidModes, sizeof (char *),
+ (int (*) (const void *, const void *)) modestrcmp);
+ for (i=0; i< numEdidModes; ) {
+ int j;
+
+ if (!rmodeNames[i] || !rmodeNames[i+1]) {
+ break;
+ }
+ if (!strcmp(rmodeNames[i], rmodeNames[i+1])) {
+ for (j = i+1; j < numEdidModes; j++) {
+ if (rmodeNames[j+1])
+ rmodeNames[j] =
+ xnfstrdup (rmodeNames[j+1]);
+ else
+ rmodeNames[j] = NULL;
+ }
+ } else
+ i++;
+ }
+ }
+
+ endp = &scrp->modes;
+ last = NULL;
+ if (rmodeNames != NULL) {
+ for (i = 0; rmodeNames[i] != NULL; i++) {
+ if (fallbackMode)
+ xf86DrvMsg(scrp->scrnIndex, X_INFO,
+ "Prepend Fallback mode name \"%s\" to validation list\n",
+ rmodeNames[i]);
+ else {
+ if (userModes)
+ xf86DrvMsg(scrp->scrnIndex, X_INFO,
+ "Prepend User mode name \"%s\" to validation list\n",
+ rmodeNames[i]);
+ else
+ xf86DrvMsg(scrp->scrnIndex, X_INFO,
+ "Prepend EDID mode name \"%s\" to validation list\n", rmodeNames[i]);
+ }
+ new = xnfcalloc(1, sizeof(DisplayModeRec));
+ new->prev = last;
+ if (userModes)
+ new->type = M_T_USERDEF;
+ else {
+ if (fallbackMode)
+ new->type = M_T_DEFAULT;
+ else
+ new->type = M_T_EDID;
+ }
+ new->name = xnfalloc(strlen(rmodeNames[i]) + 1);
+ strcpy(new->name, rmodeNames[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) {
+ /* EDID modes are already in validation list (scrp->modes) */
+ if (!userModes && (q->type == M_T_EDID))
+ continue;
+ if ((q->prev == NULL) && (q->status == MODE_OK)) {
+ for (p = scrp->modes; p != NULL; p = p->next) {
+ /* Unique timing for each mode */
+ if (!strcmp(p->name, q->name))
+ /* Multiple timing for each mode */
+ /*
+ if (!strcmp(p->name, q->name) && (p->status != MODE_OK))
+ */
+ break;
+ }
+
+ /* Skip already previously considered (in scrp->modes) */
+ 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 ((q->type & M_T_DEFAULT) &&
+ ((double)q->HTotal / (double)q->HDisplay) < 1.15)
+ continue;
+
+ /*
+ * If there is a target refresh rate, skip modes that
+ * don't match up.
+ */
+ if (ModeVRefresh(q) <
+ (1.0 - SYNC_TOLERANCE) * targetRefresh)
+ 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 = xnfalloc(strlen(r->name) + 1);
+ p->type = r->type;
+ strcpy(p->name, r->name);
+ if (p->prev)
+ p->prev->next = p;
+ *endp = last = p;
+ endp = &p->next;
+ }
+
+ repeat = FALSE;
+ lookupNext:
+ if (repeat && ((status = p->status) != MODE_OK)) {
+ char *typestring;
+
+ switch (p->type) {
+ case M_T_BUILTIN:
+ typestring = xnfstrdup("builtin");
+ break;
+ case M_T_USERDEF:
+ typestring = xnfstrdup("user");
+ break;
+ case M_T_EDID:
+ typestring = xnfstrdup("EDID");
+ break;
+ case M_T_DEFAULT:
+ typestring = xnfstrdup("default");
+ break;
+ default:
+ typestring = xnfstrdup("");
+ break;
+ }
+ xf86DrvMsg(scrp->scrnIndex, X_INFO,
+ "Not using %s \"%s\" %.1f MHz (%s)\n", typestring,
+ p->name, p->Clock/1000.0, xf86ModeStatusToString(status));
+ }
+ saveType = p->type;
+ status = xf86LookupMode(scrp, p, clockRanges, strategy);
+ if (repeat && status == MODE_NOMODE) {
+ continue;
+ }
+ if (status != MODE_OK) {
+ char *typestring;
+
+ switch (p->type) {
+ case M_T_BUILTIN:
+ typestring = xnfstrdup("builtin");
+ break;
+ case M_T_USERDEF:
+ typestring = xnfstrdup("user");
+ break;
+ case M_T_EDID:
+ typestring = xnfstrdup("EDID");
+ break;
+ case M_T_DEFAULT:
+ typestring = xnfstrdup("default");
+ break;
+ default:
+ typestring = xnfstrdup("");
+ break;
+ }
+ xf86DrvMsg(scrp->scrnIndex, X_INFO,
+ "Not using %s \"%s\" %.1f MHz (%s)\n", typestring,
+ p->name, p->Clock/1000.0, xf86ModeStatusToString(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] ==
+ miScanLineWidth(newVirtX, newVirtY, linePitches[i],
+ apertureSize, BankFormat, pitchInc))) {
+ newLinePitch = linePitches[i];
+ break;
+ }
+ }
+ } else {
+ if (linePitch < minPitch)
+ linePitch = minPitch;
+ newLinePitch = miScanLineWidth(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++;
+ }
+
+#undef _VIRTUALX
+
+ /* Update the ScrnInfoRec parameters */
+
+ scrp->virtualX = virtX;
+ scrp->virtualY = virtY;
+ scrp->displayWidth = linePitch;
+
+ if (numModes <= 0)
+ return 0;
+
+ for (p = scrp->modes; p != NULL; p = p->next)
+ if (p->status == MODE_OK)
+ break;
+ if (p) {
+ xf86DrvMsg(scrp->scrnIndex, X_INFO,
+ "Valid mode on top of list : \"%s\" %.1f MHz %.1f kHz, %.1f Hz with --\n",
+ p->name, p->Clock/1000.0, ModeHSync(p), ModeVRefresh(p));
+ PrintModeline(scrp->scrnIndex, p);
+ }
+
+ /* 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;
+ }
+
+ xfree(mode->name);
+ xfree(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) {
+#if 0
+ if (p->type & M_T_BUILTIN)
+ xf86DrvMsg(scrp->scrnIndex, X_INFO,
+ "Not using built-in mode \"%s\" (%s)\n", p->name,
+ xf86ModeStatusToString(p->status));
+ else if (p->type & M_T_DEFAULT)
+ xf86DrvMsg(scrp->scrnIndex, X_INFO,
+ "Not using default mode \"%s\" (%s)\n", p->name,
+ xf86ModeStatusToString(p->status));
+ else
+ xf86DrvMsg(scrp->scrnIndex, X_INFO,
+ "Not using mode \"%s\" (%s)\n", p->name,
+ xf86ModeStatusToString(p->status));
+#endif
+ 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);
+#ifdef DEBUG
+ ErrorF("%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);
+#endif
+ p = p->next;
+ } while (p != NULL && p != scrp->modes);
+}
+
+
+static void
+add(char **p, char *new)
+{
+ *p = xnfrealloc(*p, strlen(*p) + strlen(new) + 2);
+ strcat(*p, " ");
+ strcat(*p, new);
+}
+
+static void
+PrintModeline(int scrnIndex,DisplayModePtr mode)
+{
+ char tmp[256];
+ char *flags = xnfcalloc(1, 1);
+
+ if (mode->HSkew) {
+ snprintf(tmp, 256, "hskew %i", mode->HSkew);
+ add(&flags, tmp);
+ }
+ if (mode->VScan) {
+ snprintf(tmp, 256, "vscan %i", mode->VScan);
+ add(&flags, tmp);
+ }
+ if (mode->Flags & V_INTERLACE) add(&flags, "interlace");
+ if (mode->Flags & V_CSYNC) add(&flags, "composite");
+ if (mode->Flags & V_DBLSCAN) add(&flags, "doublescan");
+ if (mode->Flags & V_BCAST) add(&flags, "bcast");
+ if (mode->Flags & V_PHSYNC) add(&flags, "+hsync");
+ if (mode->Flags & V_NHSYNC) add(&flags, "-hsync");
+ if (mode->Flags & V_PVSYNC) add(&flags, "+vsync");
+ if (mode->Flags & V_NVSYNC) add(&flags, "-vsync");
+ if (mode->Flags & V_PCSYNC) add(&flags, "+csync");
+ if (mode->Flags & V_NCSYNC) add(&flags, "-csync");
+#if 0
+ if (mode->Flags & V_CLKDIV2) add(&flags, "vclk/2");
+#endif
+ xf86DrvMsgVerb(scrnIndex, X_INFO, 3,
+ "Modeline \"%s\" %6.2f %i %i %i %i %i %i %i %i%s\n",
+ mode->name, mode->Clock/1000., mode->HDisplay,
+ mode->HSyncStart, mode->HSyncEnd, mode->HTotal,
+ mode->VDisplay, mode->VSyncStart, mode->VSyncEnd,
+ mode->VTotal, flags);
+ xfree(flags);
+}
+
+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 = ModeHSync(p);
+ refresh = ModeVRefresh(p);
+ if (p->Flags & V_INTERLACE) {
+ desc = " (I)";
+ }
+ if (p->Flags & V_DBLSCAN) {
+ desc = " (D)";
+ }
+ if (p->VScan > 1) {
+ desc2 = " (VScan)";
+ }
+ if (!(p->type) || (p->type & M_T_EDID))
+ prefix = "EDID mode";
+ else if (p->type & M_T_USERDEF)
+ prefix = "User mode";
+ else if (p->type & M_T_BUILTIN)
+ prefix = "Builtin mode";
+ else if (p->type & M_T_DEFAULT)
+ prefix = "Default mode";
+ else
+ prefix = "Mode";
+ 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)
+ PrintModeline(scrp->scrnIndex,p);
+ p = p->next;
+ } while (p != NULL && p != scrp->modes);
+}