| 1 | ; File name : Variables.inc
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| 2 | ; Project name : XTIDE Univeral BIOS Configurator v2
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| 3 | ; Created date : 5.10.2010
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| 4 | ; Last update : 19.11.2010
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| 5 | ; Author : Tomi Tilli
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| 6 | ; Description : Global variables for configuration program.
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| 7 | %ifndef VARIABLES_INC
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| 8 | %define VARIABLES_INC
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| 9 |
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| 10 | ; Equates and defines
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| 11 | MAX_ALLOWED_IDE_CONTROLLERS EQU 5 ; Maximum number of IDE controllers
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| 12 | EEPROM_POLLING_TIMEOUT_TICKS EQU 3 ; 1 tick = 54.9 ms
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| 13 | XTIDE_SIGNATURE_LENGTH EQU 8 ; XTIDE Universal BIOS signature string length
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| 14 | NUMBER_OF_SUPPORTED_EEPROM_SIZES EQU 5
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| 15 | MAX_EEPROM_SIZE EQU 65536
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| 16 |
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| 17 |
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| 18 | ; Program global variables
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| 19 | struc CFGVARS
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| 20 | .pMenupage resb 2 ; Offset to MENUPAGE to display
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| 21 | .wFlags resb 2 ; Program flags
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| 22 | .wImageSize resb 2 ; Size in bytes for BIOS image to be flashed (0=65536)
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| 23 | .wEepromSegment resb 2 ; Segment where EEPROM is located
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| 24 | .bEepromType resb 1 ; EEPROM type
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| 25 | .bEepromPageSize resb 1 ; EEPROM page size in bytes
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| 26 | .bSdpCommand resb 1 ; Command for Software Data Protection
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| 27 | resb 1
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| 28 | .szOpenedFile resb FILENAME_BUFFER_SIZE
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| 29 | .flashVars resb FLASHVARS_size
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| 30 | endstruc
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| 31 |
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| 32 | ; Bit defines for CFGVARS.wFlags
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| 33 | FLG_CFGVARS_FILELOADED EQU (1<<0) ; BIOS is loaded from file
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| 34 | FLG_CFGVARS_ROMLOADED EQU (1<<1) ; BIOS is loaded from EEPROM
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| 35 | FLG_CFGVARS_UNSAVED EQU (1<<2) ; BIOS has unsaved changes
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| 36 | FLG_CFGVARS_CHECKSUM EQU (1<<3) ; Generate checksum byte
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| 37 |
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| 38 | ; EEPROM types
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| 39 | struc EEPROM_TYPE
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| 40 | .2816_2kiB resb 2
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| 41 | .2864_8kiB resb 2
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| 42 | .28256_32kiB resb 2
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| 43 | .28512_64kiB resb 2
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| 44 | endstruc
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| 45 |
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| 46 | ; Software Data Protection commands
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| 47 | struc SDP_COMMAND
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| 48 | .none resb 2 ; Do not use any SDP command
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| 49 | .enable resb 2 ; Flash with SDP enable command
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| 50 | .disable resb 2 ; Flash with SDP disable command
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| 51 | endstruc
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| 52 |
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| 53 | ; Page sizes
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| 54 | struc EEPROM_PAGE_SIZE
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| 55 | .1_byte resb 2
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| 56 | .2_bytes resb 2
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| 57 | .4_bytes resb 2
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| 58 | .8_bytes resb 2
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| 59 | .16_bytes resb 2
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| 60 | .32_bytes resb 2
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| 61 | .64_bytes resb 2
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| 62 | endstruc
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| 63 |
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| 64 | ; Default CFGVARS settings
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| 65 | DEFAULT_CFGVARS_FLAGS EQU FLG_CFGVARS_CHECKSUM
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| 66 | DEFAULT_EEPROM_SEGMENT EQU 0D000h
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| 67 | DEFAULT_EEPROM_TYPE EQU EEPROM_TYPE.2864_8kiB
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| 68 | DEFAULT_PAGE_SIZE EQU EEPROM_PAGE_SIZE.1_byte
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| 69 | DEFAULT_SDP_COMMAND EQU SDP_COMMAND.enable
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| 70 |
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| 71 |
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| 72 | ; Variables required for flashing
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| 73 | struc FLASHVARS
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| 74 | .wTotalPages resb 2 ; Total number of pages to write
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| 75 | .wPagesLeft resb 2 ; Pages left to write
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| 76 | .wByteOffset resb 2 ; Offset to byte to write next
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| 77 | endstruc
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| 78 |
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| 79 |
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| 80 | %endif ; VARIABLES_INC
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