1/*
2 * Copyright 2006 Luc Verhaegen.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sub license,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the
12 * next paragraph) shall be included in all copies or substantial portions
13 * of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 */
23
24#ifdef HAVE_XORG_CONFIG_H
25#include <xorg-config.h>
26#endif
27
28#include "xf86.h"
29#include "xf86DDC.h"
30#include "xf86Priv.h"
31#include <X11/Xatom.h>
32#include "property.h"
33#include "propertyst.h"
34#include <string.h>
35
36#define EDID1_ATOM_NAME         "XFree86_DDC_EDID1_RAWDATA"
37
38static int
39edidSize(const xf86MonPtr DDC)
40{
41    int ret = 128;
42
43    if (DDC->flags & EDID_COMPLETE_RAWDATA)
44       ret += DDC->no_sections * 128;
45
46    return ret;
47}
48
49static void
50setRootWindowEDID(ScreenPtr pScreen, xf86MonPtr DDC)
51{
52    Atom atom = MakeAtom(EDID1_ATOM_NAME, strlen(EDID1_ATOM_NAME), TRUE);
53
54    dixChangeWindowProperty(serverClient, pScreen->root, atom, XA_INTEGER,
55                            8, PropModeReplace, edidSize(DDC), DDC->rawData,
56                            FALSE);
57}
58
59static void
60addEDIDProp(CallbackListPtr *pcbl, void *scrn, void *screen)
61{
62    ScreenPtr pScreen = screen;
63    ScrnInfoPtr pScrn = scrn;
64
65    if (xf86ScreenToScrn(pScreen) == pScrn)
66        setRootWindowEDID(pScreen, pScrn->monitor->DDC);
67}
68
69Bool
70xf86SetDDCproperties(ScrnInfoPtr pScrn, xf86MonPtr DDC)
71{
72    if (!pScrn || !pScrn->monitor || !DDC)
73        return FALSE;
74
75    xf86EdidMonitorSet(pScrn->scrnIndex, pScrn->monitor, DDC);
76
77    if (xf86Initialising)
78        AddCallback(&RootWindowFinalizeCallback, addEDIDProp, pScrn);
79    else
80        setRootWindowEDID(pScrn->pScreen, DDC);
81
82    return TRUE;
83}
84