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xserver-multidpi/hw/xfree86/ddc/ddcProperty.c
Adam Jackson 81ef1b6d60 Mark EDID modes as driver modes. Infer virtual size from driver modes. 
This allows the server to guess an appropriate initial virtual size and
resolution.  The heuristic is to select the largest driver-reported mode
that matches the monitor's physical aspect ratio.  We revalidate this
estimate after mode validation, since we may have filtered away all
modes that would fill that size.

Also, the EDID preferred timing is now marked as M_T_PREFERRED as well.
2006-09-14 19:18:58 -04:00

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/*
* Copyright 2006 Luc Verhaegen.
*
* 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, sub license,
* 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 (including the
* next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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 "xf86.h"
#include "xf86DDC.h"
#include <X11/Xatom.h>
#include "property.h"
#include "propertyst.h"
#include "xf86DDC.h"
/*
* xf86Mode.c should have a some more DisplayModePtr list handling.
*/
static DisplayModePtr
xf86ModesAdd(DisplayModePtr Modes, DisplayModePtr Additions)
{
if (!Modes) {
if (Additions)
return Additions;
else
return NULL;
}
if (Additions) {
DisplayModePtr Mode = Modes;
while (Mode->next)
Mode = Mode->next;
Mode->next = Additions;
Additions->prev = Mode;
}
return Modes;
}
static DisplayModePtr
xf86ModeCopy(DisplayModePtr Mode)
{
DisplayModePtr New;
if (!Mode)
return NULL;
New = xnfalloc(sizeof(DisplayModeRec));
memcpy(New, Mode, sizeof(DisplayModeRec));
New->name = xnfalloc(strlen(Mode->name) + 1);
memcpy(New->name, Mode->name, strlen(Mode->name) + 1);
/* We ignore privates as DDC code doesn't use it currently */
return New;
}
/*
* Temporary.
*/
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);
}
/*
* TODO:
* - for those with access to the VESA DMT standard; review please.
*/
#define MODEPREFIX(name) NULL, NULL, name, 0,M_T_DRIVER
#define MODESUFFIX 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,FALSE,FALSE,0,NULL,0,0.0,0.0
DisplayModeRec DDCEstablishedModes[17] = {
{ MODEPREFIX("800x600"), 40000, 800, 840, 968, 1056, 0, 600, 601, 605, 628, 0, V_PHSYNC | V_PVSYNC, MODESUFFIX }, /* 800x600@60Hz */
{ MODEPREFIX("800x600"), 36000, 800, 824, 896, 1024, 0, 600, 601, 603, 625, 0, V_PHSYNC | V_PVSYNC, MODESUFFIX }, /* 800x600@56Hz */
{ MODEPREFIX("640x480"), 31500, 640, 656, 720, 840, 0, 480, 481, 484, 500, 0, V_NHSYNC | V_NVSYNC, MODESUFFIX }, /* 640x480@75Hz */
{ MODEPREFIX("640x480"), 31500, 640, 664, 704, 832, 0, 480, 489, 491, 520, 0, V_NHSYNC | V_NVSYNC, MODESUFFIX }, /* 640x480@72Hz */
{ MODEPREFIX("640x480"), 30240, 640, 704, 768, 864, 0, 480, 483, 486, 525, 0, V_NHSYNC | V_NVSYNC, MODESUFFIX }, /* 640x480@67Hz */
{ MODEPREFIX("640x480"), 25200, 640, 656, 752, 800, 0, 480, 490, 492, 525, 0, V_NHSYNC | V_NVSYNC, MODESUFFIX }, /* 640x480@60Hz */
{ MODEPREFIX("720x400"), 35500, 720, 738, 846, 900, 0, 400, 421, 423, 449, 0, V_NHSYNC | V_NVSYNC, MODESUFFIX }, /* 720x400@88Hz */
{ MODEPREFIX("720x400"), 28320, 720, 738, 846, 900, 0, 400, 412, 414, 449, 0, V_NHSYNC | V_PVSYNC, MODESUFFIX }, /* 720x400@70Hz */
{ MODEPREFIX("1280x1024"), 135000, 1280, 1296, 1440, 1688, 0, 1024, 1025, 1028, 1066, 0, V_PHSYNC | V_PVSYNC, MODESUFFIX }, /* 1280x1024@75Hz */
{ MODEPREFIX("1024x768"), 78800, 1024, 1040, 1136, 1312, 0, 768, 769, 772, 800, 0, V_PHSYNC | V_PVSYNC, MODESUFFIX }, /* 1024x768@75Hz */
{ MODEPREFIX("1024x768"), 75000, 1024, 1048, 1184, 1328, 0, 768, 771, 777, 806, 0, V_NHSYNC | V_NVSYNC, MODESUFFIX }, /* 1024x768@70Hz */
{ MODEPREFIX("1024x768"), 65000, 1024, 1048, 1184, 1344, 0, 768, 771, 777, 806, 0, V_NHSYNC | V_NVSYNC, MODESUFFIX }, /* 1024x768@60Hz */
{ MODEPREFIX("1024x768"), 44900, 1024, 1032, 1208, 1264, 0, 768, 768, 776, 817, 0, V_PHSYNC | V_PVSYNC | V_INTERLACE, MODESUFFIX }, /* 1024x768@43Hz */
{ MODEPREFIX("832x624"), 57284, 832, 864, 928, 1152, 0, 624, 625, 628, 667, 0, V_NHSYNC | V_NVSYNC, MODESUFFIX }, /* 832x624@75Hz */
{ MODEPREFIX("800x600"), 49500, 800, 816, 896, 1056, 0, 600, 601, 604, 625, 0, V_PHSYNC | V_PVSYNC, MODESUFFIX }, /* 800x600@75Hz */
{ MODEPREFIX("800x600"), 50000, 800, 856, 976, 1040, 0, 600, 637, 643, 666, 0, V_PHSYNC | V_PVSYNC, MODESUFFIX }, /* 800x600@72Hz */
{ MODEPREFIX("1152x864"), 108000, 1152, 1216, 1344, 1600, 0, 864, 865, 868, 900, 0, V_PHSYNC | V_PVSYNC, MODESUFFIX }, /* 1152x864@75Hz */
};
static DisplayModePtr
DDCModesFromEstablished(int scrnIndex, struct established_timings *timing)
{
DisplayModePtr Modes = NULL, Mode = NULL;
CARD32 bits = (timing->t1) | (timing->t2 << 8) |
((timing->t_manu & 0x80) << 9);
int i;
for (i = 0; i < 17; i++)
if (bits & (0x01 << i)) {
Mode = xf86ModeCopy(&(DDCEstablishedModes[i]));
Modes = xf86ModesAdd(Modes, Mode);
}
return Modes;
}
/*
*
*/
static DisplayModePtr
DDCModesFromStandardTiming(int scrnIndex, struct std_timings *timing)
{
DisplayModePtr Modes = NULL, Mode = NULL;
int i;
for (i = 0; i < STD_TIMINGS; i++)
if (timing[i].hsize && timing[i].vsize && timing[i].refresh) {
Mode = xf86CVTMode(timing[i].hsize, timing[i].vsize,
timing[i].refresh, FALSE, FALSE);
Mode->type = M_T_DRIVER;
Modes = xf86ModesAdd(Modes, Mode);
}
return Modes;
}
/*
*
*/
static DisplayModePtr
DDCModeFromDetailedTiming(int scrnIndex, struct detailed_timings *timing,
int preferred)
{
DisplayModePtr Mode;
/* We don't do stereo */
if (timing->stereo) {
xf86DrvMsg(scrnIndex, X_INFO, "%s: Ignoring: We don't handle stereo.\n",
__func__);
return NULL;
}
/* We only do seperate sync currently */
if (timing->sync != 0x03) {
xf86DrvMsg(scrnIndex, X_INFO, "%s: %dx%d Warning: We only handle seperate"
" sync.\n", __func__, timing->h_active, timing->v_active);
}
Mode = xnfalloc(sizeof(DisplayModeRec));
memset(Mode, 0, sizeof(DisplayModeRec));
Mode->name = xnfalloc(10); /* "1234x1234" */
xf86snprintf(Mode->name, 20, "%dx%d", timing->h_active,
timing->v_active);
Mode->type = M_T_DRIVER;
if (preferred)
Mode->type |= M_T_PREFERRED;
Mode->Clock = timing->clock / 1000.0;
Mode->HDisplay = timing->h_active;
Mode->HSyncStart = timing->h_active + timing->h_sync_off;
Mode->HSyncEnd = Mode->HSyncStart + timing->h_sync_width;
Mode->HTotal = timing->h_active + timing->h_blanking;
Mode->VDisplay = timing->v_active;
Mode->VSyncStart = timing->v_active + timing->v_sync_off;
Mode->VSyncEnd = Mode->VSyncStart + timing->v_sync_width;
Mode->VTotal = timing->v_active + timing->v_blanking;
/* We ignore h/v_size and h/v_border for now. */
if (timing->interlaced)
Mode->Flags |= V_INTERLACE;
if (timing->misc & 0x02)
Mode->Flags |= V_PHSYNC;
else
Mode->Flags |= V_NHSYNC;
if (timing->misc & 0x01)
Mode->Flags |= V_PVSYNC;
else
Mode->Flags |= V_NVSYNC;
return Mode;
}
/*
*
*/
static void
DDCGuessRangesFromModes(int scrnIndex, MonPtr Monitor, DisplayModePtr Modes)
{
DisplayModePtr Mode = Modes;
if (!Monitor || !Modes)
return;
/* set up the ranges for scanning through the modes */
Monitor->nHsync = 1;
Monitor->hsync[0].lo = 1024.0;
Monitor->hsync[0].hi = 0.0;
Monitor->nVrefresh = 1;
Monitor->vrefresh[0].lo = 1024.0;
Monitor->vrefresh[0].hi = 0.0;
while (Mode) {
if (!Mode->HSync)
Mode->HSync = ((float) Mode->Clock ) / ((float) Mode->HTotal);
if (!Mode->VRefresh)
Mode->VRefresh = (1000.0 * ((float) Mode->Clock)) /
((float) (Mode->HTotal * Mode->VTotal));
if (Mode->HSync < Monitor->hsync[0].lo)
Monitor->hsync[0].lo = Mode->HSync;
if (Mode->HSync > Monitor->hsync[0].hi)
Monitor->hsync[0].hi = Mode->HSync;
if (Mode->VRefresh < Monitor->vrefresh[0].lo)
Monitor->vrefresh[0].lo = Mode->VRefresh;
if (Mode->VRefresh > Monitor->vrefresh[0].hi)
Monitor->vrefresh[0].hi = Mode->VRefresh;
Mode = Mode->next;
}
}
/*
* Fill out MonPtr with xf86MonPtr information.
*/
void
xf86DDCMonitorSet(int scrnIndex, MonPtr Monitor, xf86MonPtr DDC)
{
DisplayModePtr Modes = NULL, Mode;
int i, clock;
Bool have_hsync = FALSE, have_vrefresh = FALSE;
int preferred;
if (!Monitor || !DDC)
return;
Monitor->DDC = DDC;
preferred = PREFERRED_TIMING_MODE(DDC->features.msc);
Monitor->widthmm = 10 * DDC->features.hsize;
Monitor->heightmm = 10 * DDC->features.vsize;
/* If this is a digital display, then we can use reduced blanking */
if (DDC->features.input_type)
Monitor->reducedblanking = TRUE;
/* Allow the user to also enable this through config */
/* Add established timings */
Mode = DDCModesFromEstablished(scrnIndex, &DDC->timings1);
Modes = xf86ModesAdd(Modes, Mode);
/* Add standard timings */
Mode = DDCModesFromStandardTiming(scrnIndex, DDC->timings2);
Modes = xf86ModesAdd(Modes, Mode);
/* Skip EDID ranges if they were specified in the config file */
have_hsync = (Monitor->nHsync != 0);
have_vrefresh = (Monitor->nVrefresh != 0);
/* Go through the detailed monitor sections */
for (i = 0; i < DET_TIMINGS; i++)
switch (DDC->det_mon[i].type) {
case DS_RANGES:
if (!have_hsync) {
if (!Monitor->nHsync)
xf86DrvMsg(scrnIndex, X_INFO,
"Using EDID range info for horizontal sync\n");
Monitor->hsync[Monitor->nHsync].lo =
DDC->det_mon[i].section.ranges.min_h;
Monitor->hsync[Monitor->nHsync].hi =
DDC->det_mon[i].section.ranges.max_h;
Monitor->nHsync++;
} else {
xf86DrvMsg(scrnIndex, X_INFO,
"Using hsync ranges from config file\n");
}
if (!have_vrefresh) {
if (!Monitor->nVrefresh)
xf86DrvMsg(scrnIndex, X_INFO,
"Using EDID range info for vertical refresh\n");
Monitor->vrefresh[Monitor->nVrefresh].lo =
DDC->det_mon[i].section.ranges.min_v;
Monitor->vrefresh[Monitor->nVrefresh].hi =
DDC->det_mon[i].section.ranges.max_v;
Monitor->nVrefresh++;
} else {
xf86DrvMsg(scrnIndex, X_INFO,
"Using vrefresh ranges from config file\n");
}
clock = DDC->det_mon[i].section.ranges.max_clock * 1000;
if (clock > Monitor->maxPixClock)
Monitor->maxPixClock = clock;
break;
case DT:
Mode = DDCModeFromDetailedTiming(scrnIndex,
&DDC->det_mon[i].section.d_timings,
preferred);
preferred = 0;
Modes = xf86ModesAdd(Modes, Mode);
break;
case DS_STD_TIMINGS:
Mode = DDCModesFromStandardTiming(scrnIndex,
DDC->det_mon[i].section.std_t);
Modes = xf86ModesAdd(Modes, Mode);
break;
default:
break;
}
if (Modes) {
/* Print Modes */
xf86DrvMsg(scrnIndex, X_INFO, "Printing DDC gathered Modelines:\n");
Mode = Modes;
while (Mode) {
PrintModeline(scrnIndex, Mode);
Mode = Mode->next;
}
/* Do we still need ranges to be filled in? */
if (!Monitor->nHsync || !Monitor->nVrefresh)
DDCGuessRangesFromModes(scrnIndex, Monitor, Modes);
/* look for last Mode */
Mode = Modes;
while (Mode->next)
Mode = Mode->next;
/* add to MonPtr */
if (Monitor->Modes) {
Monitor->Last->next = Modes;
Modes->prev = Monitor->Last;
Monitor->Last = Mode;
} else {
Monitor->Modes = Modes;
Monitor->Last = Mode;
}
}
}
#define EDID1_ATOM_NAME "XFree86_DDC_EDID1_RAWDATA"
#define EDID2_ATOM_NAME "XFree86_DDC_EDID2_RAWDATA"
#define VDIF_ATOM_NAME "XFree86_DDC_VDIF_RAWDATA"
static void
addRootWindowProperties(ScrnInfoPtr pScrn, xf86MonPtr DDC)
{
Atom EDID1Atom=-1, EDID2Atom=-1;
CARD8 *EDID1rawdata = NULL;
CARD8 *EDID2rawdata = NULL;
int i, scrnIndex = pScrn->scrnIndex;
Bool makeEDID1prop = FALSE;
Bool makeEDID2prop = FALSE;
if (DDC->ver.version == 1) {
makeEDID1prop = TRUE;
} else if (DDC->ver.version == 2) {
int checksum1;
int checksum2;
makeEDID2prop = TRUE;
/* Some monitors (eg Panasonic PanaSync4)
* report version==2 because they used EDID v2 spec document,
* although they use EDID v1 data structure :-(
*
* Try using checksum to determine when we have such a monitor.
*/
checksum2 = 0;
for (i = 0; i < 256; i++)
checksum2 += DDC->rawData[i];
if (checksum2 % 256) {
xf86DrvMsg(scrnIndex, X_INFO, "Monitor EDID v2 checksum failed\n");
xf86DrvMsg(scrnIndex, X_INFO,
"XFree86_DDC_EDID2_RAWDATA property may be bad\n");
checksum1 = 0;
for (i = 0; i < 128; i++)
checksum1 += DDC->rawData[i];
if (!(checksum1 % 256)) {
xf86DrvMsg(scrnIndex, X_INFO,
"Monitor EDID v1 checksum passed,\n");
xf86DrvMsg(scrnIndex, X_INFO,
"XFree86_DDC_EDID1_RAWDATA property created\n");
makeEDID1prop = TRUE;
}
}
} else {
xf86DrvMsg(scrnIndex, X_PROBED, "unexpected EDID version %d.%d\n",
DDC->ver.version, DDC->ver.revision);
return;
}
if (makeEDID1prop) {
if ((EDID1rawdata = xalloc(128*sizeof(CARD8)))==NULL)
return;
EDID1Atom = MakeAtom(EDID1_ATOM_NAME, sizeof(EDID1_ATOM_NAME), TRUE);
memcpy(EDID1rawdata, DDC->rawData, 128);
xf86RegisterRootWindowProperty(scrnIndex, EDID1Atom, XA_INTEGER, 8,
128, (unsigned char *)EDID1rawdata);
}
if (makeEDID2prop) {
if ((EDID2rawdata = xalloc(256*sizeof(CARD8)))==NULL)
return;
memcpy(EDID2rawdata, DDC->rawData, 256);
EDID2Atom = MakeAtom(EDID2_ATOM_NAME, sizeof(EDID2_ATOM_NAME), TRUE);
xf86RegisterRootWindowProperty(scrnIndex, EDID2Atom, XA_INTEGER, 8,
256, (unsigned char *)EDID2rawdata);
}
#if 0
if (DDC->vdif) {
#define VDIF_DUMMY_STRING "setting dummy VDIF property - please insert correct values\n"
VDIFAtom = MakeAtom(VDIF_ATOM_NAME, sizeof(VDIF_ATOM_NAME), TRUE);
xf86RegisterRootWindowProperty(scrnIndex, VDIFAtom, XA_STRING, 8,
strlen(VDIF_DUMMY_STRING), VDIF_DUMMY_STRING);
}
#endif
}
Bool
xf86SetDDCproperties(ScrnInfoPtr pScrn, xf86MonPtr DDC)
{
if (!pScrn || !pScrn->monitor || !DDC)
return FALSE;
xf86DDCMonitorSet(pScrn->scrnIndex, pScrn->monitor, DDC);
addRootWindowProperties(pScrn, DDC);
return TRUE;
}
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