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