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