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Diffstat (limited to 'libmate-desktop/edid.h')
| -rw-r--r-- | libmate-desktop/edid.h | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/libmate-desktop/edid.h b/libmate-desktop/edid.h new file mode 100644 index 0000000..ec0793e --- /dev/null +++ b/libmate-desktop/edid.h @@ -0,0 +1,184 @@ +/* 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., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + * + * Author: Soren Sandmann <[email protected]> + */ + +#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 */ |