xserver-multidpi/hw/xfree86/modes/xf86EdidModes.c
Eric Anholt fc092334ac Bug #10304,12784,11603: Add quirks for several physical size issues.
A lot of EDID writers apparently end up stuffing centimeters (like the
maximum image size field) into the detailed timings, instead of millimeters.
Some of them only get it wrong in one direction.  Also, add a quirk to let
us mark the largest 75hz mode as preferred, which will often be used for
EDID 1.0 CRTs.
2007-10-11 16:55:44 -07:00

629 lines
19 KiB
C

/*
* 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.
*/
/**
* @file This file covers code to convert a xf86MonPtr containing EDID-probed
* information into a list of modes, including applying monitor-specific
* quirks to fix broken EDID data.
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#else
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#endif
#include "xf86.h"
#include "xf86DDC.h"
#include <X11/Xatom.h>
#include "property.h"
#include "propertyst.h"
#include "xf86DDC.h"
#include "xf86Crtc.h"
#include <string.h>
#include <math.h>
/*
* Quirks to work around broken EDID data from various monitors.
*/
typedef enum {
DDC_QUIRK_NONE = 0,
/* First detailed mode is bogus, prefer largest mode at 60hz */
DDC_QUIRK_PREFER_LARGE_60 = 1 << 0,
/* 135MHz clock is too high, drop a bit */
DDC_QUIRK_135_CLOCK_TOO_HIGH = 1 << 1,
/* Prefer the largest mode at 75 Hz */
DDC_QUIRK_PREFER_LARGE_75 = 1 << 2,
/* Convert detailed timing's horizontal from units of cm to mm */
DDC_QUIRK_DETAILED_H_IN_CM = 1 << 3,
/* Convert detailed timing's vertical from units of cm to mm */
DDC_QUIRK_DETAILED_V_IN_CM = 1 << 4,
/* Detailed timing descriptors have bogus size values, so just take the
* maximum size and use that.
*/
DDC_QUIRK_DETAILED_USE_MAXIMUM_SIZE = 1 << 5,
} ddc_quirk_t;
static Bool quirk_prefer_large_60 (int scrnIndex, xf86MonPtr DDC)
{
/* Belinea 10 15 55 */
if (memcmp (DDC->vendor.name, "MAX", 4) == 0 &&
DDC->vendor.prod_id == 1516)
return TRUE;
/* Acer AL1706 */
if (memcmp (DDC->vendor.name, "ACR", 4) == 0 &&
DDC->vendor.prod_id == 44358)
return TRUE;
/* Bug #10814: Samsung SyncMaster 225BW */
if (memcmp (DDC->vendor.name, "SAM", 4) == 0 &&
DDC->vendor.prod_id == 596)
return TRUE;
/* Bug #10545: Samsung SyncMaster 226BW */
if (memcmp (DDC->vendor.name, "SAM", 4) == 0 &&
DDC->vendor.prod_id == 638)
return TRUE;
return FALSE;
}
static Bool quirk_prefer_large_75 (int scrnIndex, xf86MonPtr DDC)
{
/* Bug #11603: Funai Electronics PM36B */
if (memcmp (DDC->vendor.name, "FCM", 4) == 0 &&
DDC->vendor.prod_id == 13600)
return TRUE;
return FALSE;
}
static Bool quirk_detailed_h_in_cm (int scrnIndex, xf86MonPtr DDC)
{
/* Bug #10304: "LGPhilipsLCD LP154W01-A5" */
/* Bug #12784: "LGPhilipsLCD LP154W01-TLA2" */
if (memcmp (DDC->vendor.name, "LPL", 4) == 0 &&
DDC->vendor.prod_id == 0)
return TRUE;
/* Bug #11603: Funai Electronics PM36B */
if (memcmp (DDC->vendor.name, "FCM", 4) == 0 &&
DDC->vendor.prod_id == 13600)
return TRUE;
return FALSE;
}
static Bool quirk_detailed_v_in_cm (int scrnIndex, xf86MonPtr DDC)
{
/* Bug #11603: Funai Electronics PM36B */
if (memcmp (DDC->vendor.name, "FCM", 4) == 0 &&
DDC->vendor.prod_id == 13600)
return TRUE;
return FALSE;
}
static Bool quirk_detailed_use_maximum_size (int scrnIndex, xf86MonPtr DDC)
{
/* Bug #10304: LGPhilipsLCD LP154W01-A5 */
if (memcmp (DDC->vendor.name, "LPL", 4) == 0 &&
DDC->vendor.prod_id == 0)
return TRUE;
return FALSE;
}
static Bool quirk_135_clock_too_high (int scrnIndex, xf86MonPtr DDC)
{
/* Envision Peripherals, Inc. EN-7100e. See bug #9550. */
if (memcmp (DDC->vendor.name, "EPI", 4) == 0 &&
DDC->vendor.prod_id == 59264)
return TRUE;
return FALSE;
}
typedef struct {
Bool (*detect) (int scrnIndex, xf86MonPtr DDC);
ddc_quirk_t quirk;
char *description;
} ddc_quirk_map_t;
static const ddc_quirk_map_t ddc_quirks[] = {
{
quirk_prefer_large_60, DDC_QUIRK_PREFER_LARGE_60,
"Detailed timing is not preferred, use largest mode at 60Hz"
},
{
quirk_135_clock_too_high, DDC_QUIRK_135_CLOCK_TOO_HIGH,
"Recommended 135MHz pixel clock is too high"
},
{
quirk_prefer_large_75, DDC_QUIRK_PREFER_LARGE_75,
"Detailed timing is not preferred, use largest mode at 75Hz"
},
{
quirk_detailed_h_in_cm, DDC_QUIRK_DETAILED_H_IN_CM,
"Detailed timings give horizontal size in cm."
},
{
quirk_detailed_v_in_cm, DDC_QUIRK_DETAILED_V_IN_CM,
"Detailed timings give vertical size in cm."
},
{
quirk_detailed_use_maximum_size, DDC_QUIRK_DETAILED_USE_MAXIMUM_SIZE,
"Detailed timings give sizes in cm."
},
{
NULL, DDC_QUIRK_NONE,
"No known quirks"
},
};
/*
* 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
static 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,
ddc_quirk_t quirks)
{
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 = xf86DuplicateMode(&DDCEstablishedModes[i]);
Modes = xf86ModesAdd(Modes, Mode);
}
}
return Modes;
}
/*
*
*/
static DisplayModePtr
DDCModesFromStandardTiming(int scrnIndex, struct std_timings *timing,
ddc_quirk_t quirks)
{
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, ddc_quirk_t quirks)
{
DisplayModePtr Mode;
/*
* Refuse to create modes that are insufficiently large. 64 is a random
* number, maybe the spec says something about what the minimum is. In
* particular I see this frequently with _old_ EDID, 1.0 or so, so maybe
* our parser is just being too aggresive there.
*/
if (timing->h_active < 64 || timing->v_active < 64) {
xf86DrvMsg(scrnIndex, X_INFO,
"%s: Ignoring tiny %dx%d mode\n", __func__,
timing->h_active, timing->v_active);
return NULL;
}
/* 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->type = M_T_DRIVER;
if (preferred)
Mode->type |= M_T_PREFERRED;
if( ( quirks & DDC_QUIRK_135_CLOCK_TOO_HIGH ) &&
timing->clock == 135000000 )
Mode->Clock = 108880;
else
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;
xf86SetModeDefaultName(Mode);
/* 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_PVSYNC;
else
Mode->Flags |= V_NVSYNC;
if (timing->misc & 0x01)
Mode->Flags |= V_PHSYNC;
else
Mode->Flags |= V_NHSYNC;
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;
}
}
static ddc_quirk_t
xf86DDCDetectQuirks(int scrnIndex, xf86MonPtr DDC, Bool verbose)
{
ddc_quirk_t quirks;
int i;
quirks = DDC_QUIRK_NONE;
for (i = 0; ddc_quirks[i].detect; i++) {
if (ddc_quirks[i].detect (scrnIndex, DDC)) {
if (verbose) {
xf86DrvMsg (scrnIndex, X_INFO, " EDID quirk: %s\n",
ddc_quirks[i].description);
}
quirks |= ddc_quirks[i].quirk;
}
}
return quirks;
}
/**
* Applies monitor-specific quirks to the decoded EDID information.
*
* Note that some quirks applying to the mode list are still implemented in
* xf86DDCGetModes.
*/
void
xf86DDCApplyQuirks(int scrnIndex, xf86MonPtr DDC)
{
ddc_quirk_t quirks = xf86DDCDetectQuirks (scrnIndex, DDC, FALSE);
int i;
for (i = 0; i < DET_TIMINGS; i++) {
struct detailed_monitor_section *det_mon = &DDC->det_mon[i];
if (det_mon->type != DT)
continue;
if (quirks & DDC_QUIRK_DETAILED_H_IN_CM)
det_mon->section.d_timings.h_size *= 10;
if (quirks & DDC_QUIRK_DETAILED_V_IN_CM)
det_mon->section.d_timings.v_size *= 10;
if (quirks & DDC_QUIRK_DETAILED_USE_MAXIMUM_SIZE) {
det_mon->section.d_timings.h_size = 10 * DDC->features.hsize;
det_mon->section.d_timings.v_size = 10 * DDC->features.vsize;
}
}
}
/**
* Walks the modes list, finding the mode with the largest area which is
* closest to the target refresh rate, and marks it as the only preferred mode.
*/
static void
xf86DDCSetPreferredRefresh(int scrnIndex, DisplayModePtr modes,
float target_refresh)
{
DisplayModePtr mode, best = modes;
for (mode = modes; mode; mode = mode->next)
{
mode->type &= ~M_T_PREFERRED;
if (mode == best) continue;
if (mode->HDisplay * mode->VDisplay >
best->HDisplay * best->VDisplay)
{
best = mode;
continue;
}
if (mode->HDisplay * mode->VDisplay ==
best->HDisplay * best->VDisplay)
{
double mode_refresh = xf86ModeVRefresh (mode);
double best_refresh = xf86ModeVRefresh (best);
double mode_dist = fabs(mode_refresh - target_refresh);
double best_dist = fabs(best_refresh - target_refresh);
if (mode_dist < best_dist)
{
best = mode;
continue;
}
}
}
if (best)
best->type |= M_T_PREFERRED;
}
_X_EXPORT DisplayModePtr
xf86DDCGetModes(int scrnIndex, xf86MonPtr DDC)
{
int preferred, i;
DisplayModePtr Modes = NULL, Mode;
ddc_quirk_t quirks;
xf86DrvMsg (scrnIndex, X_INFO, "EDID vendor \"%s\", prod id %d\n",
DDC->vendor.name, DDC->vendor.prod_id);
quirks = xf86DDCDetectQuirks(scrnIndex, DDC, TRUE);
preferred = PREFERRED_TIMING_MODE(DDC->features.msc);
if (quirks & DDC_QUIRK_PREFER_LARGE_60)
preferred = 0;
for (i = 0; i < DET_TIMINGS; i++) {
struct detailed_monitor_section *det_mon = &DDC->det_mon[i];
switch (det_mon->type) {
case DT:
Mode = DDCModeFromDetailedTiming(scrnIndex,
&det_mon->section.d_timings,
preferred,
quirks);
preferred = 0;
Modes = xf86ModesAdd(Modes, Mode);
break;
case DS_STD_TIMINGS:
Mode = DDCModesFromStandardTiming(scrnIndex,
det_mon->section.std_t,
quirks);
Modes = xf86ModesAdd(Modes, Mode);
break;
default:
break;
}
}
/* Add established timings */
Mode = DDCModesFromEstablished(scrnIndex, &DDC->timings1, quirks);
Modes = xf86ModesAdd(Modes, Mode);
/* Add standard timings */
Mode = DDCModesFromStandardTiming(scrnIndex, DDC->timings2, quirks);
Modes = xf86ModesAdd(Modes, Mode);
if (quirks & DDC_QUIRK_PREFER_LARGE_60)
xf86DDCSetPreferredRefresh(scrnIndex, Modes, 60);
if (quirks & DDC_QUIRK_PREFER_LARGE_75)
xf86DDCSetPreferredRefresh(scrnIndex, Modes, 75);
return Modes;
}
/*
* Fill out MonPtr with xf86MonPtr information.
*/
_X_EXPORT void
xf86DDCMonitorSet(int scrnIndex, MonPtr Monitor, xf86MonPtr DDC)
{
DisplayModePtr Modes = NULL, Mode;
int i, clock;
Bool have_hsync = FALSE, have_vrefresh = FALSE, have_maxpixclock = FALSE;
if (!Monitor || !DDC)
return;
Monitor->DDC = DDC;
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 */
Modes = xf86DDCGetModes(scrnIndex, DDC);
/* Skip EDID ranges if they were specified in the config file */
have_hsync = (Monitor->nHsync != 0);
have_vrefresh = (Monitor->nVrefresh != 0);
have_maxpixclock = (Monitor->maxPixClock != 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 (!have_maxpixclock && clock > Monitor->maxPixClock)
Monitor->maxPixClock = clock;
break;
default:
break;
}
}
if (Modes) {
/* Print Modes */
xf86DrvMsg(scrnIndex, X_INFO, "Printing DDC gathered Modelines:\n");
Mode = Modes;
while (Mode) {
xf86PrintModeline(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;
}
}
}