i830_modes.c revision fa225cbc 
1/* -*- c-basic-offset: 4 -*- */
2
3#define DEBUG_VERB 2
4/*
5 * Copyright � 2002 David Dawes
6 * Copyright � 2006 Intel Corporation
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
21 * THE AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
22 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
23 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 * SOFTWARE.
25 *
26 * Except as contained in this notice, the name of the author(s) shall
27 * not be used in advertising or otherwise to promote the sale, use or other
28 * dealings in this Software without prior written authorization from
29 * the author(s).
30 *
31 * Authors: David Dawes <dawes@xfree86.org>
32 *	    Eric Anholt <eric.anholt@intel.com>
33 *
34 */
35/*
36 * Modified by Alan Hourihane <alanh@tungstengraphics.com>
37 * to support extended BIOS modes for the Intel chipsets
38 */
39
40#ifdef HAVE_CONFIG_H
41#include "config.h"
42#endif
43
44#include <stdio.h>
45#include <string.h>
46#include <assert.h>
47#include <math.h>
48
49#include "xf86.h"
50#include "xf86DDC.h"
51#include "X11/Xatom.h"
52#include "i830.h"
53#include "i830_display.h"
54#include "xf86Modes.h"
55#include <randrstr.h>
56
57DisplayModePtr
58i830_ddc_get_modes (xf86OutputPtr output)
59{
60    I830OutputPrivatePtr    intel_output = output->driver_private;
61    xf86MonPtr		    edid_mon;
62    DisplayModePtr	    modes;
63
64    edid_mon = xf86OutputGetEDID (output, intel_output->pDDCBus);
65    xf86OutputSetEDID (output, edid_mon);
66
67    modes = xf86OutputGetEDIDModes (output);
68    return modes;
69}
70