mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-10 14:23:31 +01:00
185 lines
5.6 KiB
C
185 lines
5.6 KiB
C
/*
|
|
* edid.h
|
|
*
|
|
*
|
|
* Created by Evan Lojewski on 12/1/09.
|
|
* Copyright 2009. All rights reserved.
|
|
*
|
|
* Slice 2010, based on Joblo works
|
|
*/
|
|
//#ifndef __EDID_H__
|
|
//#define __EDID_H__
|
|
|
|
|
|
//#include "libsaio.h"
|
|
#include <Uefi.h>
|
|
|
|
#include <Library/UefiLib.h>
|
|
#include <Library/DebugLib.h>
|
|
#include <Library/PrintLib.h>
|
|
#include <Library/BaseLib.h>
|
|
#include <Library/UefiBootServicesTableLib.h>
|
|
#include <Library/BaseMemoryLib.h>
|
|
#include <Library/MemoryAllocationLib.h>
|
|
#include <Library/DevicePathLib.h>
|
|
|
|
#include <IndustryStandard/Pci.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 colorCHAR8acteristics[10]; //25
|
|
UINT8 establishedTimings[3]; //35
|
|
UINT16 standardTimings[8]; //38
|
|
UINT8 detailedTimings[72]; //54
|
|
UINT8 extension; //126
|
|
UINT8 checksum; //127
|
|
};
|
|
|
|
|
|
typedef struct _edid_mode {
|
|
UINT16 pixel_clock;
|
|
UINT16 h_active;
|
|
UINT16 h_blanking;
|
|
UINT16 v_active;
|
|
UINT16 v_blanking;
|
|
UINT16 h_sync_offset;
|
|
UINT16 h_sync_width;
|
|
UINT16 v_sync_offset;
|
|
UINT16 v_sync_width;
|
|
} edid_mode;
|
|
|
|
|
|
CHAR8* readEDID();
|
|
VOID getResolution(UINT32* x, UINT32* y, UINT32* bp);
|
|
INT32 fb_parse_edid(struct EDID *edid, edid_mode* var);
|
|
INT32 getEDID( VOID * edidBlock, UINT8 block);
|
|
//#endif
|