1 /* $NetBSD: edidvar.h,v 1.5 2021/12/19 11:01:01 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 Itronix Inc. 5 * All rights reserved. 6 * 7 * Written by Garrett D'Amore for Itronix Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of Itronix Inc. may not be used to endorse 18 * or promote products derived from this software without specific 19 * prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND ANY EXPRESS 22 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY 25 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 27 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 30 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 31 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #ifndef _DEV_VIDEOMODE_EDIDVAR_H 35 #define _DEV_VIDEOMODE_EDIDVAR_H 36 37 #include <dev/videomode/videomode.h> 38 39 struct edid_chroma { 40 uint16_t ec_redx; 41 uint16_t ec_redy; 42 uint16_t ec_greenx; 43 uint16_t ec_greeny; 44 uint16_t ec_bluex; 45 uint16_t ec_bluey; 46 uint16_t ec_whitex; 47 uint16_t ec_whitey; 48 }; 49 50 struct edid_range { 51 uint16_t er_min_vfreq; /* Hz */ 52 uint16_t er_max_vfreq; /* Hz */ 53 uint16_t er_min_hfreq; /* kHz */ 54 uint16_t er_max_hfreq; /* kHz */ 55 uint16_t er_max_clock; /* MHz */ 56 int er_have_gtf2; 57 uint16_t er_gtf2_hfreq; 58 uint16_t er_gtf2_c; 59 uint16_t er_gtf2_m; 60 uint16_t er_gtf2_k; 61 uint16_t er_gtf2_j; 62 }; 63 64 struct edid_info { 65 uint8_t edid_vendor[4]; 66 char edid_vendorname[16]; 67 char edid_productname[16]; 68 char edid_comment[16]; 69 char edid_serial[16]; 70 uint16_t edid_product; 71 uint8_t edid_version; 72 uint8_t edid_revision; 73 int edid_year; 74 int edid_week; 75 uint8_t edid_video_input; /* see edidregs.h */ 76 uint8_t edid_max_hsize; /* in cm */ 77 uint8_t edid_max_vsize; /* in cm */ 78 uint8_t edid_gamma; 79 uint8_t edid_features; 80 uint8_t edid_ext_block_count; 81 82 int edid_have_range; 83 struct edid_range edid_range; 84 85 struct edid_chroma edid_chroma; 86 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(uint8_t *, struct edid_info *); 95 void edid_print(struct edid_info *); 96 97 #endif /* _DEV_VIDEOMODE_EDIDVAR_H */ 98