193 lines
4 KiB
C
193 lines
4 KiB
C
/* edid.h
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*
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* Copyright 2007, 2008, Red Hat, Inc.
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*
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* This file is part of the Gnome Library.
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*
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* The Gnome Library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* The Gnome Library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with the Gnome Library; see the file COPYING.LIB. If not,
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* write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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* Author: Soren Sandmann <sandmann@redhat.com>
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*/
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#ifndef EDID_H
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#define EDID_H
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typedef unsigned char uchar;
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typedef struct MonitorInfo MonitorInfo;
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typedef struct Timing Timing;
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typedef struct DetailedTiming DetailedTiming;
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typedef enum
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{
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UNDEFINED,
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DVI,
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HDMI_A,
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HDMI_B,
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MDDI,
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DISPLAY_PORT
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} Interface;
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typedef enum
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{
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UNDEFINED_COLOR,
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MONOCHROME,
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RGB,
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OTHER_COLOR
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} ColorType;
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typedef enum
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{
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NO_STEREO,
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FIELD_RIGHT,
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FIELD_LEFT,
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TWO_WAY_RIGHT_ON_EVEN,
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TWO_WAY_LEFT_ON_EVEN,
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FOUR_WAY_INTERLEAVED,
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SIDE_BY_SIDE
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} StereoType;
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struct Timing
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{
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int width;
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int height;
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int frequency;
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};
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struct DetailedTiming
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{
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int pixel_clock;
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int h_addr;
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int h_blank;
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int h_sync;
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int h_front_porch;
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int v_addr;
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int v_blank;
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int v_sync;
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int v_front_porch;
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int width_mm;
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int height_mm;
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int right_border;
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int top_border;
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int interlaced;
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StereoType stereo;
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int digital_sync;
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union
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{
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struct
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{
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int bipolar;
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int serrations;
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int sync_on_green;
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} analog;
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struct
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{
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int composite;
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int serrations;
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int negative_vsync;
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int negative_hsync;
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} digital;
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} connector;
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};
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struct MonitorInfo
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{
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int checksum;
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char manufacturer_code[4];
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int product_code;
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unsigned int serial_number;
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int production_week; /* -1 if not specified */
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int production_year; /* -1 if not specified */
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int model_year; /* -1 if not specified */
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int major_version;
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int minor_version;
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int is_digital;
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union
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{
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struct
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{
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int bits_per_primary;
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Interface interface;
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int rgb444;
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int ycrcb444;
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int ycrcb422;
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} digital;
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struct
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{
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double video_signal_level;
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double sync_signal_level;
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double total_signal_level;
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int blank_to_black;
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int separate_hv_sync;
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int composite_sync_on_h;
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int composite_sync_on_green;
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int serration_on_vsync;
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ColorType color_type;
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} analog;
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} connector;
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int width_mm; /* -1 if not specified */
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int height_mm; /* -1 if not specified */
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double aspect_ratio; /* -1.0 if not specififed */
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double gamma; /* -1.0 if not specified */
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int standby;
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int suspend;
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int active_off;
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int srgb_is_standard;
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int preferred_timing_includes_native;
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int continuous_frequency;
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double red_x;
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double red_y;
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double green_x;
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double green_y;
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double blue_x;
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double blue_y;
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double white_x;
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double white_y;
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Timing established[24]; /* Terminated by 0x0x0 */
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Timing standard[8];
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int n_detailed_timings;
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DetailedTiming detailed_timings[4]; /* If monitor has a preferred
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* mode, it is the first one
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* (whether it has, is
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* determined by the
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* preferred_timing_includes
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* bit.
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*/
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/* Optional product description */
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char dsc_serial_number[14];
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char dsc_product_name[14];
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char dsc_string[14]; /* Unspecified ASCII data */
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};
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MonitorInfo *decode_edid (const uchar *data);
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#endif
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