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kolibrios-fun/programs/system/drivers/rhd/rhd_edid.c
Sergey Semyonov (Serge) 4cc87fbe7d Radeon modesetting. Father of all "C" drivers. 
git-svn-id: svn://kolibrios.org@955 a494cfbc-eb01-0410-851d-a64ba20cac60
2008-12-13 07:51:28 +00:00

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/*
* Copyright 2006-2007 Luc Verhaegen <lverhaegen@novell.com>.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, 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_CONFIG_H
# include <config.h>
#endif
#ifdef HAVE_XORG_CONFIG_H
# include <xorg-config.h>
#endif
#include "xf86.h"
#include "rhd.h"
#include "edid.h"
#include "xf86DDC.h"
#include "rhd_modes.h"
#include "rhd_monitor.h"
/*
* TODO:
* - for those with access to the VESA DMT standard; review please.
* - swap M_T_DEFAULT for M_T_EDID_...
*/
#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 EDIDEstablishedModes[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
EDIDModesFromEstablished(RHDPtr rhdPtr, 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 = RHDModeCopy(&(EDIDEstablishedModes[i]));
Modes = RHDModesAdd(Modes, Mode);
}
return Modes;
}
/*
*
*/
static DisplayModePtr
EDIDModesFromStandardTiming(RHDPtr rhdPtr, 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 = RHDCVTMode(timing[i].hsize, timing[i].vsize,
timing[i].refresh, FALSE, FALSE);
Mode->type = M_T_DRIVER;
Modes = RHDModesAdd(Modes, Mode);
}
return Modes;
}
/*
*
*/
static DisplayModePtr
EDIDModeFromDetailedTiming(RHDPtr rhdPtr, struct detailed_timings *timing)
{
DisplayModePtr Mode;
int scrnIndex;
/* 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 separate sync currently */
if (timing->sync != 0x03) {
xf86DrvMsg(scrnIndex, X_INFO, "%s: Ignoring: We only handle separate"
" sync.\n", __func__);
return NULL;
}
Mode = xnfalloc(sizeof(DisplayModeRec));
memset(Mode, 0, sizeof(DisplayModeRec));
Mode->name = xnfalloc(10); /* "1234x1234" */
snprintf(Mode->name, 20, "%dx%d", timing->h_active, timing->v_active);
Mode->type = M_T_DRIVER;
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_PVSYNC;
else
Mode->Flags |= V_NVSYNC;
if (timing->misc & 0x01)
Mode->Flags |= V_PHSYNC;
else
Mode->Flags |= V_NHSYNC;
return Mode;
}
/*
*
*/
static void
EDIDGuessRangesFromModes(struct rhdMonitor *Monitor, DisplayModePtr Modes)
{
DisplayModePtr Mode = Modes;
if (!Monitor || !Modes)
return;
for (Mode = Modes; Mode; Mode = Mode->next) {
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->Flags & V_INTERLACE)
Mode->VRefresh *= 2.0;
if (Mode->Flags & V_DBLSCAN)
Mode->VRefresh /= 2.0;
}
}
if (!Monitor->numHSync) {
/* set up the ranges for scanning through the modes */
Monitor->numHSync = 1;
Monitor->HSync[0].lo = 1024.0;
Monitor->HSync[0].hi = 0.0;
for (Mode = Modes; Mode; Mode = Mode->next) {
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 (!Monitor->numVRefresh) {
Monitor->numVRefresh = 1;
Monitor->VRefresh[0].lo = 1024.0;
Monitor->VRefresh[0].hi = 0.0;
for (Mode = Modes; Mode; Mode = Mode->next) {
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;
}
}
if (!Monitor->Bandwidth)
for (Mode = Modes; Mode; Mode = Mode->next)
if (Mode->Clock > Monitor->Bandwidth)
Monitor->Bandwidth = Mode->Clock;
}
/*
* Determine whether this monitor does allow reduced blanking.
* Do not set it to false, to allow the user to specify this too.
*/
static void
EDIDReducedAllowed(struct rhdMonitor *Monitor, DisplayModePtr Modes)
{
DisplayModePtr Mode;
for (Mode = Modes; Mode; Mode = Mode->next)
if (((Mode->HTotal - Mode->HDisplay) == 160) &&
((Mode->HSyncEnd - Mode->HDisplay) == 80) &&
((Mode->HSyncEnd - Mode->HSyncStart) == 32) &&
((Mode->VSyncStart - Mode->VDisplay) == 3))
Monitor->ReducedAllowed = TRUE;
}
/*
* Fill out rhdMonitor with xf86MonPtr information.
*/
void
RHDMonitorEDIDSet(struct rhdMonitor *Monitor, xf86MonPtr EDID)
{
DisplayModePtr Modes = NULL, Mode;
int i, preferred;
if (!Monitor || !EDID)
return;
/* We don't parse the detailed name yet, so use ABC-0123 */
Monitor->Name = xnfcalloc(9, 1);
snprintf(Monitor->Name, 9, "%s-%04X", EDID->vendor.name,
EDID->vendor.prod_id);
/* Add established timings */
Mode = EDIDModesFromEstablished(Monitor->scrnIndex, &EDID->timings1);
Modes = RHDModesAdd(Modes, Mode);
/* Add standard timings */
Mode = EDIDModesFromStandardTiming(Monitor->scrnIndex, EDID->timings2);
Modes = RHDModesAdd(Modes, Mode);
/* First DT timing preferred? */
preferred = PREFERRED_TIMING_MODE(EDID->features.msc);
/* Go through the detailed monitor sections */
for (i = 0; i < DET_TIMINGS; i++)
switch (EDID->det_mon[i].type) {
case DS_RANGES:
if (!Monitor->numHSync) {
Monitor->numHSync = 1;
Monitor->HSync[0].lo = EDID->det_mon[i].section.ranges.min_h;
Monitor->HSync[0].hi = EDID->det_mon[i].section.ranges.max_h;
} else
xf86DrvMsg(Monitor->scrnIndex, X_INFO,
"\"%s\": keeping configured HSync.\n",
Monitor->Name);
if (!Monitor->numVRefresh) {
Monitor->numVRefresh = 1;
Monitor->VRefresh[0].lo = EDID->det_mon[i].section.ranges.min_v;
Monitor->VRefresh[0].hi = EDID->det_mon[i].section.ranges.max_v;
} else
xf86DrvMsg(Monitor->scrnIndex, X_INFO,
"\"%s\": keeping configured VRefresh.\n",
Monitor->Name);
if (!Monitor->Bandwidth)
Monitor->Bandwidth =
EDID->det_mon[i].section.ranges.max_clock * 1000;
break;
case DT:
Mode = EDIDModeFromDetailedTiming(Monitor->scrnIndex,
&EDID->det_mon[i].section.d_timings);
if (Mode) {
if (preferred) {
Mode->type |= M_T_PREFERRED;
/* also grab the DPI while we are at it */
Monitor->xDpi = (Mode->HDisplay * 25.4) /
((float) EDID->det_mon[i].section.d_timings.h_size) + 0.5;
Monitor->yDpi = (Mode->VDisplay * 25.4) /
((float) EDID->det_mon[i].section.d_timings.v_size) + 0.5;
Monitor->NativeMode = Mode;
}
preferred = FALSE;
Modes = RHDModesAdd(Modes, Mode);
}
break;
case DS_STD_TIMINGS:
Mode = EDIDModesFromStandardTiming(Monitor->scrnIndex,
EDID->det_mon[i].section.std_t);
Modes = RHDModesAdd(Modes, Mode);
break;
case DS_NAME:
xfree(Monitor->Name);
Monitor->Name = xnfcalloc(13, 1);
memcpy(Monitor->Name, EDID->det_mon[i].section.name, 13);
break;
default:
break;
}
if (Modes) {
EDIDGuessRangesFromModes(Monitor, Modes);
EDIDReducedAllowed(Monitor, Modes);
Monitor->Modes = RHDModesAdd(Monitor->Modes, Modes);
}
/* Calculate DPI when we still don't have this */
if (!Monitor->xDpi || !Monitor->yDpi) {
int HDisplay = 0, VDisplay = 0;
for (Mode = Monitor->Modes; Mode; Mode = Mode->next) {
if (Mode->HDisplay > HDisplay)
HDisplay = Mode->HDisplay;
if (Mode->VDisplay > VDisplay)
VDisplay = Mode->VDisplay;
}
if (HDisplay && EDID->features.hsize)
Monitor->xDpi = (HDisplay * 2.54) / ((float) EDID->features.hsize) + 0.5;
if (VDisplay && EDID->features.vsize)
Monitor->yDpi = (VDisplay * 2.54) / ((float) EDID->features.vsize) + 0.5;
if (!Monitor->xDpi && Monitor->yDpi)
Monitor->xDpi = Monitor->yDpi;
if (!Monitor->yDpi && Monitor->xDpi)
Monitor->yDpi = Monitor->xDpi;
}
}
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