1 /* $OpenBSD: edidvar.h,v 1.3 2024/11/06 09:34:10 miod Exp $ */ 2 /* $NetBSD: edidvar.h,v 1.5 2021/12/19 11:01:01 riastradh Exp $ */ 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 38 #include <dev/videomode/videomode.h> 39 40 struct edid_chroma { 41 uint16_t ec_redx; 42 uint16_t ec_redy; 43 uint16_t ec_greenx; 44 uint16_t ec_greeny; 45 uint16_t ec_bluex; 46 uint16_t ec_bluey; 47 uint16_t ec_whitex; 48 uint16_t ec_whitey; 49 }; 50 51 struct edid_range { 52 uint16_t er_min_vfreq; /* Hz */ 53 uint16_t er_max_vfreq; /* Hz */ 54 uint16_t er_min_hfreq; /* kHz */ 55 uint16_t er_max_hfreq; /* kHz */ 56 uint16_t er_max_clock; /* MHz */ 57 int er_have_gtf2; 58 uint16_t er_gtf2_hfreq; 59 uint16_t er_gtf2_c; 60 uint16_t er_gtf2_m; 61 uint16_t er_gtf2_k; 62 uint16_t er_gtf2_j; 63 }; 64 65 struct edid_info { 66 uint8_t edid_vendor[4]; 67 char edid_vendorname[16]; 68 char edid_productname[16]; 69 char edid_comment[16]; 70 char edid_serial[16]; 71 uint16_t edid_product; 72 uint8_t edid_version; 73 uint8_t edid_revision; 74 int edid_year; 75 int edid_week; 76 uint8_t edid_video_input; /* see edidregs.h */ 77 uint8_t edid_max_hsize; /* in cm */ 78 uint8_t edid_max_vsize; /* in cm */ 79 uint8_t edid_gamma; 80 uint8_t edid_features; 81 uint8_t edid_ext_block_count; 82 83 int edid_have_range; 84 struct edid_range edid_range; 85 86 struct edid_chroma edid_chroma; 87 /* parsed modes */ 88 struct videomode *edid_preferred_mode; 89 int edid_nmodes; 90 struct videomode edid_modes[64]; 91 }; 92 93 int edid_is_valid(uint8_t *); 94 int edid_parse(const char *, uint8_t *, struct edid_info *); 95 void edid_print(struct edid_info *); 96 97 #endif /* _DEV_VIDEOMODE_EDIDVAR_H */ 98