1/*	$NetBSD: edidvar.h,v 1.2 2006/05/11 19:05:41 gdamore Exp $	*/
2/*	$FreeBSD$	*/
3
4/*-
5 * Copyright (c) 2006 Itronix Inc.
6 * All rights reserved.
7 *
8 * Written by Garrett D'Amore for Itronix Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. The name of Itronix Inc. may not be used to endorse
19 *    or promote products derived from this software without specific
20 *    prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND ANY EXPRESS
23 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY
26 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
28 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
31 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
32 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 */
34
35#ifndef _DEV_VIDEOMODE_EDIDVAR_H
36#define _DEV_VIDEOMODE_EDIDVAR_H
37
38struct edid_chroma {
39	uint16_t	ec_redx;
40	uint16_t	ec_redy;
41	uint16_t	ec_greenx;
42	uint16_t	ec_greeny;
43	uint16_t	ec_bluex;
44	uint16_t	ec_bluey;
45	uint16_t	ec_whitex;
46	uint16_t	ec_whitey;
47};
48
49struct edid_range {
50	uint16_t	er_min_vfreq;	/* Hz */
51	uint16_t	er_max_vfreq;	/* Hz */
52	uint16_t	er_min_hfreq;	/* kHz */
53	uint16_t	er_max_hfreq;	/* kHz */
54	uint16_t	er_max_clock;	/* MHz */
55	int		er_have_gtf2;
56	uint16_t	er_gtf2_hfreq;
57	uint16_t	er_gtf2_c;
58	uint16_t	er_gtf2_m;
59	uint16_t	er_gtf2_k;
60	uint16_t	er_gtf2_j;
61};
62
63struct edid_info {
64	uint8_t		edid_vendor[4];
65	char		edid_vendorname[16];
66	char		edid_productname[16];
67	char		edid_comment[16];
68	char		edid_serial[16];
69	uint16_t	edid_product;
70	uint8_t		edid_version;
71	uint8_t		edid_revision;
72	int		edid_year;
73	int		edid_week;
74	uint8_t		edid_video_input;	/* see edidregs.h */
75	uint8_t		edid_max_hsize;		/* in cm */
76	uint8_t		edid_max_vsize;		/* in cm */
77	uint8_t		edid_gamma;
78	uint8_t		edid_features;
79	uint8_t		edid_ext_block_count;
80
81	int			edid_have_range;
82	struct edid_range	edid_range;
83
84	struct edid_chroma	edid_chroma;
85
86	/* parsed modes */
87	struct videomode	*edid_preferred_mode;
88	int			edid_nmodes;
89	struct videomode	edid_modes[64];
90};
91
92int edid_is_valid(uint8_t *);
93int edid_parse(uint8_t *, struct edid_info *);
94void edid_print(struct edid_info *);
95
96#endif /* _DEV_VIDEOMODE_EDIDVAR_H */
97