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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 "xf86Priv.h"
#include <X11/Xatom.h>
#include "property.h"
#include "propertyst.h"
#include <string.h>
#define EDID1_ATOM_NAME "XFree86_DDC_EDID1_RAWDATA"
static int
edidSize(const xf86MonPtr DDC)
{
int ret = 128;
if (DDC->flags & EDID_COMPLETE_RAWDATA)
ret += DDC->no_sections * 128;
return ret;
}
static void
setRootWindowEDID(ScreenPtr pScreen, xf86MonPtr DDC)
{
Atom atom = MakeAtom(EDID1_ATOM_NAME, strlen(EDID1_ATOM_NAME), TRUE);
dixChangeWindowProperty(serverClient, pScreen->root, atom, XA_INTEGER,
8, PropModeReplace, edidSize(DDC), DDC->rawData,
FALSE);
}
static void
edidMakeAtom(int i, const char *name, xf86MonPtr DDC)
{
Atom atom;
unsigned char *atom_data;
int size = edidSize(DDC);
if (!(atom_data = malloc(size * sizeof(CARD8))))
return;
atom = MakeAtom(name, strlen(name), TRUE);
memcpy(atom_data, DDC->rawData, size);
xf86RegisterRootWindowProperty(i, atom, XA_INTEGER, 8, size, atom_data);
}
static void
addRootWindowProperties(ScrnInfoPtr pScrn, xf86MonPtr DDC)
{
int scrnIndex = pScrn->scrnIndex;
if (DDC->ver.version == 1) {
if (xf86Initialising)
edidMakeAtom(scrnIndex, EDID1_ATOM_NAME, DDC);
else
setRootWindowEDID(pScrn->pScreen, DDC);
}
else {
xf86DrvMsg(scrnIndex, X_PROBED, "unexpected EDID version %d.%d\n",
DDC->ver.version, DDC->ver.revision);
return;
}
}
Bool
xf86SetDDCproperties(ScrnInfoPtr pScrn, xf86MonPtr DDC)
{
if (!pScrn || !pScrn->monitor || !DDC)
return FALSE;
xf86EdidMonitorSet(pScrn->scrnIndex, pScrn->monitor, DDC);
addRootWindowProperties(pScrn, DDC);
return TRUE;
}
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