| /*␊ |
| * edid.h␊ |
| * ␊ |
| *␊ |
| * Created by Evan Lojewski on 12/1/09.␊ |
| * Copyright 2009. All rights reserved.␊ |
| *␊ |
| * Slice 2010␊ |
| */␊ |
| //#ifndef __EDID_H__␊ |
| //#define __EDID_H__␊ |
| ␊ |
| ␊ |
| #include "libsaio.h"␊ |
| ␊ |
| #define EDID_BLOCK_SIZE␉128␊ |
| #define EDID_V1_BLOCKS_TO_GO_OFFSET 126␊ |
| //Slice - some more info about EDID␊ |
| #define EDID_LENGTH␉␉␉␉0x80␊ |
| #define EDID_HEADER␉␉␉␉0x00␊ |
| #define EDID_HEADER_END␉␉␉␉0x07␊ |
| ␊ |
| #define ID_MANUFACTURER_NAME␉␉␉0x08␊ |
| #define ID_MANUFACTURER_NAME_END␉␉0x09␊ |
| #define ID_MODEL␉␉␉␉0x0a␊ |
| ␊ |
| #define ID_SERIAL_NUMBER␉␉␉0x0c␊ |
| ␊ |
| #define MANUFACTURE_WEEK␉␉␉0x10␊ |
| #define MANUFACTURE_YEAR␉␉␉0x11␊ |
| ␊ |
| #define EDID_STRUCT_VERSION␉␉␉0x12␊ |
| #define EDID_STRUCT_REVISION␉␉␉0x13␊ |
| ␊ |
| #define EDID_STRUCT_DISPLAY 0x14␊ |
| ␊ |
| #define DPMS_FLAGS␉␉␉␉0x18␊ |
| #define ESTABLISHED_TIMING_1␉␉␉0x23␊ |
| #define ESTABLISHED_TIMING_2␉␉␉0x24␊ |
| #define MANUFACTURERS_TIMINGS␉␉␉0x25␊ |
| ␊ |
| /* standard timings supported */␊ |
| #define STD_TIMING 8␊ |
| #define STD_TIMING_DESCRIPTION_SIZE 2␊ |
| #define STD_TIMING_DESCRIPTIONS_START 0x26␊ |
| ␊ |
| #define DETAILED_TIMING_DESCRIPTIONS_START␉0x36␊ |
| #define DETAILED_TIMING_DESCRIPTION_SIZE␉18␊ |
| #define NO_DETAILED_TIMING_DESCRIPTIONS␉␉4␊ |
| ␊ |
| #define DETAILED_TIMING_DESCRIPTION_1␉␉0x36␊ |
| #define DETAILED_TIMING_DESCRIPTION_2␉␉0x48␊ |
| #define DETAILED_TIMING_DESCRIPTION_3␉␉0x5a␊ |
| #define DETAILED_TIMING_DESCRIPTION_4␉␉0x6c␊ |
| ␊ |
| #define DESCRIPTOR_DATA␉␉␉␉5␊ |
| ␊ |
| #define UPPER_NIBBLE( x ) \␊ |
| (((128|64|32|16) & (x)) >> 4)␊ |
| ␊ |
| #define LOWER_NIBBLE( x ) \␊ |
| ((1|2|4|8) & (x))␊ |
| ␊ |
| #define COMBINE_HI_8LO( hi, lo ) \␊ |
| ( (((unsigned)hi) << 8) | (unsigned)lo )␊ |
| ␊ |
| #define COMBINE_HI_4LO( hi, lo ) \␊ |
| ( (((unsigned)hi) << 4) | (unsigned)lo )␊ |
| ␊ |
| #define PIXEL_CLOCK_LO (unsigned)block[ 0 ]␊ |
| #define PIXEL_CLOCK_HI (unsigned)block[ 1 ]␊ |
| #define PIXEL_CLOCK␉ (COMBINE_HI_8LO( PIXEL_CLOCK_HI,PIXEL_CLOCK_LO )*10000)␊ |
| #define H_ACTIVE_LO (unsigned)block[ 2 ]␊ |
| #define H_BLANKING_LO (unsigned)block[ 3 ]␊ |
| #define H_ACTIVE_HI UPPER_NIBBLE( (unsigned)block[ 4 ] )␊ |
| #define H_ACTIVE COMBINE_HI_8LO( H_ACTIVE_HI, H_ACTIVE_LO )␊ |
| #define H_BLANKING_HI LOWER_NIBBLE( (unsigned)block[ 4 ] )␊ |
| #define H_BLANKING COMBINE_HI_8LO( H_BLANKING_HI, H_BLANKING_LO )␊ |
| ␊ |
| #define V_ACTIVE_LO (unsigned)block[ 5 ]␊ |
| #define V_BLANKING_LO (unsigned)block[ 6 ]␊ |
| #define V_ACTIVE_HI UPPER_NIBBLE( (unsigned)block[ 7 ] )␊ |
| #define V_ACTIVE COMBINE_HI_8LO( V_ACTIVE_HI, V_ACTIVE_LO )␊ |
| #define V_BLANKING_HI LOWER_NIBBLE( (unsigned)block[ 7 ] )␊ |
| #define V_BLANKING COMBINE_HI_8LO( V_BLANKING_HI, V_BLANKING_LO )␊ |
| ␊ |
| #define H_SYNC_OFFSET_LO (unsigned)block[ 8 ]␊ |
| #define H_SYNC_WIDTH_LO (unsigned)block[ 9 ]␊ |
| ␊ |
| #define V_SYNC_OFFSET_LO UPPER_NIBBLE( (unsigned)block[ 10 ] )␊ |
| #define V_SYNC_WIDTH_LO LOWER_NIBBLE( (unsigned)block[ 10 ] )␊ |
| ␊ |
| #define V_SYNC_WIDTH_HI ((unsigned)block[ 11 ] & (1|2))␊ |
| #define V_SYNC_OFFSET_HI (((unsigned)block[ 11 ] & (4|8)) >> 2)␊ |
| ␊ |
| #define H_SYNC_WIDTH_HI (((unsigned)block[ 11 ] & (16|32)) >> 4)␊ |
| #define H_SYNC_OFFSET_HI (((unsigned)block[ 11 ] & (64|128)) >> 6)␊ |
| ␊ |
| #define V_SYNC_WIDTH COMBINE_HI_4LO( V_SYNC_WIDTH_HI, V_SYNC_WIDTH_LO )␊ |
| #define V_SYNC_OFFSET COMBINE_HI_4LO( V_SYNC_OFFSET_HI, V_SYNC_OFFSET_LO )␊ |
| ␊ |
| #define H_SYNC_WIDTH COMBINE_HI_4LO( H_SYNC_WIDTH_HI, H_SYNC_WIDTH_LO )␊ |
| #define H_SYNC_OFFSET COMBINE_HI_4LO( H_SYNC_OFFSET_HI, H_SYNC_OFFSET_LO )␊ |
| ␊ |
| #define H_SIZE_LO (unsigned)block[ 12 ]␊ |
| #define V_SIZE_LO (unsigned)block[ 13 ]␊ |
| ␊ |
| #define H_SIZE_HI UPPER_NIBBLE( (unsigned)block[ 14 ] )␊ |
| #define V_SIZE_HI LOWER_NIBBLE( (unsigned)block[ 14 ] )␊ |
| ␊ |
| #define H_SIZE COMBINE_HI_8LO( H_SIZE_HI, H_SIZE_LO )␊ |
| #define V_SIZE COMBINE_HI_8LO( V_SIZE_HI, V_SIZE_LO )␊ |
| ␊ |
| #define H_BORDER (unsigned)block[ 15 ]␊ |
| #define V_BORDER (unsigned)block[ 16 ]␊ |
| ␊ |
| #define FLAGS (unsigned)block[ 17 ]␊ |
| ␊ |
| #define INTERLACED (FLAGS&128)␊ |
| #define SYNC_TYPE (FLAGS&3<<3)␉/* bits 4,3 */␊ |
| #define SYNC_SEPARATE (3<<3)␊ |
| #define HSYNC_POSITIVE (FLAGS & 4)␊ |
| #define VSYNC_POSITIVE (FLAGS & 2)␊ |
| ␊ |
| #define V_MIN_RATE block[ 5 ]␊ |
| #define V_MAX_RATE block[ 6 ]␊ |
| #define H_MIN_RATE block[ 7 ]␊ |
| #define H_MAX_RATE block[ 8 ]␊ |
| #define MAX_PIXEL_CLOCK (((int)block[ 9 ]) * 10)␊ |
| #define GTF_SUPPORT␉␉block[10]␊ |
| ␊ |
| #define DPMS_ACTIVE_OFF␉␉(1 << 5)␊ |
| #define DPMS_SUSPEND␉␉(1 << 6)␊ |
| #define DPMS_STANDBY␉␉(1 << 7)␊ |
| ␊ |
| struct EDID␊ |
| {␊ |
| UInt8␉header[8];␉␉␉//0␊ |
| UInt8␉vendorProduct[4];␉//8␊ |
| UInt8␉serialNumber[4];␉//12␊ |
| UInt8␉weekOfManufacture;␉//16␊ |
| UInt8␉yearOfManufacture;␉//17␊ |
| UInt8␉version;␉␉␉//18␊ |
| UInt8␉revision;␉␉␉//19␊ |
| UInt8␉displayParams[5];␉//20␊ |
| UInt8␉colorCharacteristics[10];␉//25␊ |
| UInt8␉establishedTimings[3];␉␉//35␊ |
| UInt16␉standardTimings[8];␉␉␉//38␊ |
| UInt8␉detailedTimings[72];␉␉//54␊ |
| UInt8␉extension;␉␉␉␉␉//126␊ |
| UInt8␉checksum;␉␉␉␉␉//127␊ |
| };␊ |
| ␊ |
| ␊ |
| typedef struct _edid_mode {␊ |
| ␉unsigned short pixel_clock;␊ |
| ␉unsigned short h_active;␊ |
| ␉unsigned short h_blanking;␊ |
| ␉unsigned short v_active;␊ |
| ␉unsigned short v_blanking;␊ |
| ␉unsigned short h_sync_offset;␊ |
| ␉unsigned short h_sync_width;␊ |
| ␉unsigned short v_sync_offset;␊ |
| ␉unsigned short v_sync_width;␊ |
| } edid_mode;␊ |
| ␊ |
| ␊ |
| char* readEDID();␊ |
| void getResolution(UInt32* x, UInt32* y, UInt32* bp);␊ |
| int fb_parse_edid(struct EDID *edid, edid_mode* var);␊ |
| ␊ |
| //#endif |
