1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
/* $NetBSD: edidvar.h,v 1.2 2006/05/11 19:05:41 gdamore Exp $ */
/*-
* Copyright (c) 2006 Itronix Inc.
* All rights reserved.
*
* Written by Garrett D'Amore for Itronix Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of Itronix Inc. may not be used to endorse
* or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _DEV_VIDEOMODE_EDIDVAR_H
#define _DEV_VIDEOMODE_EDIDVAR_H
struct edid_chroma {
uint16_t ec_redx;
uint16_t ec_redy;
uint16_t ec_greenx;
uint16_t ec_greeny;
uint16_t ec_bluex;
uint16_t ec_bluey;
uint16_t ec_whitex;
uint16_t ec_whitey;
};
struct edid_range {
uint16_t er_min_vfreq; /* Hz */
uint16_t er_max_vfreq; /* Hz */
uint16_t er_min_hfreq; /* kHz */
uint16_t er_max_hfreq; /* kHz */
uint16_t er_max_clock; /* MHz */
int er_have_gtf2;
uint16_t er_gtf2_hfreq;
uint16_t er_gtf2_c;
uint16_t er_gtf2_m;
uint16_t er_gtf2_k;
uint16_t er_gtf2_j;
};
struct edid_info {
uint8_t edid_vendor[4];
char edid_vendorname[16];
char edid_productname[16];
char edid_comment[16];
char edid_serial[16];
uint16_t edid_product;
uint8_t edid_version;
uint8_t edid_revision;
int edid_year;
int edid_week;
uint8_t edid_video_input; /* see edidregs.h */
uint8_t edid_max_hsize; /* in cm */
uint8_t edid_max_vsize; /* in cm */
uint8_t edid_gamma;
uint8_t edid_features;
int edid_have_range;
struct edid_range edid_range;
struct edid_chroma edid_chroma;
/* parsed modes */
struct videomode *edid_preferred_mode;
int edid_nmodes;
struct videomode edid_modes[64];
};
int edid_is_valid(uint8_t *);
int edid_parse(uint8_t *, struct edid_info *);
void edid_print(struct edid_info *);
#endif /* _DEV_VIDEOMODE_EDIDVAR_H */
|
