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review.coreboot.org / coreboot / aa04ed649442296366bc2bad1936ec5184235069 / . / src / include / edid.h
blob: 4a2f13858b34faa712458fc0da03720dbc0e61a4 [file] [log] [blame]
Ronald G. Minnichb3b72f32013-03-13 14:35:01 -0700[diff] [blame]1/*
2 * This file is part of the coreboot project.
3 *
4 * Copyright 2013 Google Inc.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19
20#ifndef EDID_H
21#define EDID_H
22
23/* structure for communicating EDID information from a raw EDID block to
24 * higher level functions.
25 * The size of the data types is not critical, so we leave them as
26 * unsigned int. We can move more into into this struct as needed.
27 */
28
29struct edid {
30 char manuf_name[4];
31 unsigned int model;
32 unsigned int serial;
33 unsigned int year;
34 unsigned int week;
35 unsigned int version[2];
36 unsigned int nonconformant;
37 unsigned int type;
38 unsigned int bpp;
Ronald G. Minnichb2893a012013-04-23 10:59:11 -0700[diff] [blame]39 unsigned int xres;
40 unsigned int yres;
Ronald G. Minnichb3b72f32013-03-13 14:35:01 -0700[diff] [blame]41 unsigned int voltage;
42 unsigned int sync;
43 unsigned int xsize_cm;
44 unsigned int ysize_cm;
45 /* used to compute timing for graphics chips. */
46 unsigned char phsync;
47 unsigned char pvsync;
Furquan Shaikhaa04ed62013-07-23 15:53:02 -0700[diff] [blame^]48 unsigned int x_mm;
49 unsigned int y_mm;
Furquan Shaikh6b190712013-07-22 16:18:31 -0700[diff] [blame]50 unsigned int pixel_clock;
51 unsigned int link_clock;
Ronald G. Minnichb3b72f32013-03-13 14:35:01 -0700[diff] [blame]52 unsigned int ha;
53 unsigned int hbl;
54 unsigned int hso;
55 unsigned int hspw;
56 unsigned int hborder;
57 unsigned int va;
58 unsigned int vbl;
59 unsigned int vso;
60 unsigned int vspw;
61 unsigned int vborder;
Ronald G. Minnich4c5b1612013-06-28 14:33:30 -0700[diff] [blame]62 /* 3 variables needed for coreboot framebuffer.
63 * In most cases, they are the same as the ha
64 * and va variables, but not always, as in the
65 * case of a 1366 wide display.
66 */
67 u32 x_resolution;
68 u32 y_resolution;
69 u32 bytes_per_line;
Ronald G. Minnichb3b72f32013-03-13 14:35:01 -0700[diff] [blame]70 /* it is unlikely we need these things. */
71 /* if one of these is non-zero, use that one. */
72 unsigned int aspect_landscape;
73 unsigned int aspect_portrait;
74 const char *range_class;
75 const char *syncmethod;
76 const char *stereo;
77};
78
Ronald G. Minnichb2893a012013-04-23 10:59:11 -0700[diff] [blame]79/* Defined in src/lib/edid.c */
Ronald G. Minnichb3b72f32013-03-13 14:35:01 -0700[diff] [blame]80int decode_edid(unsigned char *edid, int size, struct edid *out);
Ronald G. Minnich78c3e332013-04-24 09:50:56 -0700[diff] [blame]81void set_vbe_mode_info_valid(struct edid *edid, uintptr_t fb_addr);
Ronald G. Minnichb2893a012013-04-23 10:59:11 -0700[diff] [blame]82
Ronald G. Minnichb3b72f32013-03-13 14:35:01 -0700[diff] [blame]83#endif /* EDID_H */