| 1 | ; Project name : XTIDE Univeral BIOS Configurator v2
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| 2 | ; Description : Global variables for configuration program.
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| 3 | %ifndef VARIABLES_INC
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| 4 | %define VARIABLES_INC
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| 5 |
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| 6 | ; Equates and defines
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| 7 | MAX_ALLOWED_IDE_CONTROLLERS EQU 4 ; Maximum number of IDE controllers
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| 8 | MAX_LITE_MODE_CONTROLLERS EQU 2
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| 9 | EEPROM_POLLING_TIMEOUT_TICKS EQU 3 ; 1 tick = 54.9 ms
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| 10 | XTIDE_SIGNATURE_LENGTH EQU 8 ; XTIDE Universal BIOS signature string length
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| 11 | NUMBER_OF_EEPROM_TYPES EQU 5
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| 12 | MAX_EEPROM_SIZE_IN_BYTES EQU 65536
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| 13 |
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| 14 |
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| 15 | ; Program global variables
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| 16 | struc CFGVARS
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| 17 | .pMenupage resb 2 ; Offset to MENUPAGE to display
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| 18 | .wFlags resb 2 ; Program flags
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| 19 | .wImageSizeInWords resb 2 ; Size in words for loaded ROM or FILE
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| 20 | .wEepromSegment resb 2 ; Segment where EEPROM is located
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| 21 | .bEepromType resb 1 ; EEPROM type
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| 22 | .bEepromPage resb 1 ; EEPROM page size (EEPROM_PAGE)
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| 23 | .bSdpCommand resb 1 ; Command for Software Data Protection
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| 24 | resb 1
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| 25 | .szOpenedFile resb FILENAME_BUFFER_SIZE
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| 26 | endstruc
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| 27 |
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| 28 | ; Bit defines for CFGVARS.wFlags
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| 29 | FLG_CFGVARS_FILELOADED EQU (1<<0) ; BIOS is loaded from file
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| 30 | FLG_CFGVARS_ROMLOADED EQU (1<<1) ; BIOS is loaded from EEPROM
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| 31 | FLG_CFGVARS_UNSAVED EQU (1<<2) ; BIOS has unsaved changes
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| 32 | FLG_CFGVARS_CHECKSUM EQU (1<<3) ; Generate checksum byte
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| 33 |
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| 34 | ; EEPROM types
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| 35 | struc EEPROM_TYPE
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| 36 | .2816_2kiB resb 2
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| 37 | .2864_8kiB resb 2
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| 38 | .2864_8kiB_MOD resb 2 ; Reversed A0 and A3 address lines
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| 39 | .28256_32kiB resb 2
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| 40 | .28512_64kiB resb 2
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| 41 | endstruc
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| 42 |
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| 43 | ; Software Data Protection commands
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| 44 | struc SDP_COMMAND
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| 45 | .none resb 2 ; Do not use any SDP command
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| 46 | .enable resb 2 ; Flash with SDP enable command
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| 47 | .disable resb 2 ; Flash with SDP disable command
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| 48 | endstruc
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| 49 |
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| 50 | ; Page sizes
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| 51 | struc EEPROM_PAGE
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| 52 | .1_byte resb 2
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| 53 | .2_bytes resb 2
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| 54 | .4_bytes resb 2
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| 55 | .8_bytes resb 2
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| 56 | .16_bytes resb 2
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| 57 | .32_bytes resb 2
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| 58 | .64_bytes resb 2
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| 59 | endstruc
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| 60 |
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| 61 | ; Default CFGVARS settings
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| 62 | DEFAULT_CFGVARS_FLAGS EQU FLG_CFGVARS_CHECKSUM
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| 63 | DEFAULT_EEPROM_SEGMENT EQU 0D000h
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| 64 | DEFAULT_EEPROM_TYPE EQU EEPROM_TYPE.2864_8kiB
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| 65 | DEFAULT_PAGE_SIZE EQU EEPROM_PAGE.1_byte
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| 66 | DEFAULT_SDP_COMMAND EQU SDP_COMMAND.enable
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| 67 |
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| 68 |
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| 69 | ; Variables required for flashing
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| 70 | struc FLASHVARS
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| 71 | .fpNextSourcePage resb 4
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| 72 | .fpNextComparisonPage resb 4
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| 73 | .fpNextDestinationPage resb 4
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| 74 | .wPagesToFlash resb 2 ; 0 = 65536
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| 75 | .wEepromPageSize resb 2 ; 1, 2, 4, 8, 16, 32 or 64
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| 76 | .bEepromSdpCommand resb 1
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| 77 | .bEepromType resb 1
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| 78 |
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| 79 | .wProgressUpdateParam resb 2
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| 80 | .wTimeoutCounter resb 2
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| 81 | .wLastOffsetWritten resb 2
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| 82 | .bLastByteWritten resb 1
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| 83 | .flashResult resb 1
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| 84 | endstruc
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| 85 |
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| 86 | ; Flashing results
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| 87 | struc FLASH_RESULT
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| 88 | .success resb 2
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| 89 | .PollingTimeoutError resb 2
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| 90 | .DataVerifyError resb 2
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| 91 | endstruc
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| 92 |
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| 93 |
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| 94 | %endif ; VARIABLES_INC
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