sys/dev/videomode/edidvar.h

   1 /*      $NetBSD: edidvar.h,v 1.2 2006/05/11 19:05:41 gdamore 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 struct edid_chroma {
  38         uint16_t        ec_redx;
  39         uint16_t        ec_redy;
  40         uint16_t        ec_greenx;
  41         uint16_t        ec_greeny;
  42         uint16_t        ec_bluex;
  43         uint16_t        ec_bluey;
  44         uint16_t        ec_whitex;
  45         uint16_t        ec_whitey;
  46 };
  47
  48 struct edid_range {
  49         uint16_t        er_min_vfreq;   /* Hz */
  50         uint16_t        er_max_vfreq;   /* Hz */
  51         uint16_t        er_min_hfreq;   /* kHz */
  52         uint16_t        er_max_hfreq;   /* kHz */
  53         uint16_t        er_max_clock;   /* MHz */
  54         int             er_have_gtf2;
  55         uint16_t        er_gtf2_hfreq;
  56         uint16_t        er_gtf2_c;
  57         uint16_t        er_gtf2_m;
  58         uint16_t        er_gtf2_k;
  59         uint16_t        er_gtf2_j;
  60 };
  61
  62 struct edid_info {
  63         uint8_t         edid_vendor[4];
  64         char            edid_vendorname[16];
  65         char            edid_productname[16];
  66         char            edid_comment[16];
  67         char            edid_serial[16];
  68         uint16_t        edid_product;
  69         uint8_t         edid_version;
  70         uint8_t         edid_revision;
  71         int             edid_year;
  72         int             edid_week;
  73         uint8_t         edid_video_input;       /* see edidregs.h */
  74         uint8_t         edid_max_hsize;         /* in cm */
  75         uint8_t         edid_max_vsize;         /* in cm */
  76         uint8_t         edid_gamma;
  77         uint8_t         edid_features;
  78
  79         int                     edid_have_range;
  80         struct edid_range       edid_range;
  81
  82         struct edid_chroma      edid_chroma;
  83
  84         /* parsed modes */
  85         struct videomode        *edid_preferred_mode;
  86         int                     edid_nmodes;
  87         struct videomode        edid_modes[64];
  88 };
  89
  90 int edid_is_valid(uint8_t *);
  91 int edid_parse(uint8_t *, struct edid_info *);
  92 void edid_print(struct edid_info *);
  93
  94 #endif /* _DEV_VIDEOMODE_EDIDVAR_H */