haiku/headers/private/graphics/common/edid.h

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/*
* Copyright 2003, Thomas Kurschel. All Rights Reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _EDID_H
#define _EDID_H
//! EDID handling, including decoded EDID data block definition.
#include "edid_raw.h"
// vendor info
typedef struct {
char manufacturer[4];
uint16 prod_id;
uint32 serial;
uint8 week;
uint16 year;
} edid1_vendor;
// version info
typedef struct {
uint8 version;
uint8 revision;
} edid1_version;
// display info
typedef struct {
BBITFIELD8_7 (
input_type : 1, // 1 : digital
input_voltage : 2, // 0=0.7V/0.3V, 1=0.714V/0.286,
// 2=1V/0.4V, 3=0.7V/0V
setup : 1, // true if voltage configurable
sep_sync : 1,
comp_sync : 1,
sync_on_green : 1,
sync_serr : 1
);
uint8 h_size;
uint8 v_size;
uint8 gamma; // (x+100)/100
BBITFIELD8_7 (
dpms_standby : 1,
dpms_suspend : 1,
dpms_off : 1,
display_type : 2, // 0=mono, 1=rgb, 2=multicolour
// since EDID version 1.1
std_colour_space : 1,
preferred_timing_mode : 1,
gtf_supported : 1
);
uint16 red_x; // all colours are 0.10 fixed point
uint16 red_y;
uint16 green_x;
uint16 green_y;
uint16 blue_x;
uint16 blue_y;
uint16 white_x;
uint16 white_y;
} edid1_display;
// standard timing data
typedef struct {
uint16 h_size;
uint16 v_size;
uint16 id;
uint8 ratio;
uint8 refresh;
} edid1_std_timing;
// additional whitepoint
typedef struct {
uint8 index;
uint16 white_x;
uint16 white_y;
uint8 gamma; // (x+100)/100
} edid1_whitepoint;
// detailed timing description
typedef struct {
uint16 pixel_clock; // in 10 kHz
uint16 h_active;
uint16 h_blank;
uint16 v_active;
uint16 v_blank;
uint16 h_sync_off;
uint16 h_sync_width;
uint16 v_sync_off;
uint16 v_sync_width;
uint16 h_size;
uint16 v_size;
uint16 h_border;
uint16 v_border;
BBITFIELD8_4 (
interlaced : 1,
stereo : 2, // upper bit set - left on sync
// lower bit set - right on sync
sync : 2,
misc : 2
);
} edid1_detailed_timing;
// detailed monitor description
typedef struct {
uint8 monitor_desc_type;
union {
char serial_number[EDID1_EXTRA_STRING_LEN];
char ascii_data[EDID1_EXTRA_STRING_LEN];
edid1_monitor_range monitor_range;
char monitor_name[EDID1_EXTRA_STRING_LEN];
edid1_whitepoint whitepoint[EDID1_NUM_EXTRA_WHITEPOINTS];
edid1_std_timing std_timing[EDID1_NUM_EXTRA_STD_TIMING];
edid1_detailed_timing detailed_timing;
} data;
} edid1_detailed_monitor;
// EDID data block
typedef struct{
edid1_vendor vendor;
edid1_version version;
edid1_display display;
edid1_established_timing established_timing;
edid1_std_timing std_timing[EDID1_NUM_STD_TIMING];
// since EDID version 1.2
edid1_detailed_monitor detailed_monitor[EDID1_NUM_DETAILED_MONITOR_DESC];
uint8 num_sections;
} edid1_info;
#ifdef __cplusplus
extern "C" {
#endif
void edid_decode(edid1_info *edid, const edid1_raw *raw);
void edid_dump(edid1_info *edid);
#ifdef __cplusplus
}
#endif
#endif // _EDID_H