| 1 | ; Project name : XTIDE Univeral BIOS Configurator v2
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| 2 | ; Description : Global variables for configuration program.
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| 3 |
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| 4 | ;
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| 5 | ; XTIDE Universal BIOS and Associated Tools
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| 6 | ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team.
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| 7 | ;
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| 8 | ; This program is free software; you can redistribute it and/or modify
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| 9 | ; it under the terms of the GNU General Public License as published by
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| 10 | ; the Free Software Foundation; either version 2 of the License, or
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| 11 | ; (at your option) any later version.
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| 12 | ;
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| 13 | ; This program is distributed in the hope that it will be useful,
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| 14 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 16 | ; GNU General Public License for more details.
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| 17 | ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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| 18 | ;
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| 19 |
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| 20 | %ifndef VARIABLES_INC
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| 21 | %define VARIABLES_INC
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| 22 |
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| 23 | ; Equates and defines
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| 24 | BOOT_MENU_DEFAULT_TIMEOUT EQU (TICKS_PER_MINUTE / 2)
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| 25 | MAX_ALLOWED_IDE_CONTROLLERS EQU 4 ; Maximum number of IDE controllers
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| 26 | MAX_LITE_MODE_CONTROLLERS EQU 2
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| 27 | EEPROM_POLLING_TIMEOUT_TICKS EQU 3 ; 1 tick = 54.9 ms
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| 28 | XTIDE_SIGNATURE_LENGTH EQU 6 ; XTIDE Universal BIOS signature string length (must be even)
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| 29 | NUMBER_OF_EEPROM_TYPES EQU 5
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| 30 | MAX_EEPROM_SIZE_IN_BYTES EQU 65536
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| 31 | SST_PAGE_SIZE_SHIFT EQU 12 ; Minimum we can erase is a 4K sector.
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| 32 | SST_PAGE_SIZE EQU (1 << SST_PAGE_SIZE_SHIFT)
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| 33 |
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| 34 | ; Program global variables
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| 35 | struc CFGVARS
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| 36 | .pMenupage resb 2 ; Offset to MENUPAGE to display
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| 37 | .wFlags resb 2 ; Program flags - Only the low byte is used currently and code depend on this
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| 38 | .wImageSizeInWords resb 2 ; Size in words for loaded ROM or FILE
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| 39 | .wEepromSegment resb 2 ; Segment where EEPROM is located
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| 40 | .bEepromType resb 1 ; EEPROM type
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| 41 | .bEepromPage resb 1 ; EEPROM page size (EEPROM_PAGE)
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| 42 | .bSdpCommand resb 1 ; Command for Software Data Protection
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| 43 | resb 1
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| 44 | .szOpenedFile resb FILENAME_BUFFER_SIZE
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| 45 | endstruc
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| 46 |
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| 47 | ; Bit defines for CFGVARS.wFlags (changes here might require changes elsewhere)
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| 48 | FLG_CFGVARS_FILELOADED EQU (1<<0) ; BIOS is loaded from file
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| 49 | FLG_CFGVARS_ROMLOADED EQU (1<<1) ; BIOS is loaded from EEPROM
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| 50 | FLG_CFGVARS_UNSAVED EQU (1<<2) ; BIOS has unsaved changes
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| 51 | FLG_CFGVARS_CHECKSUM EQU (1<<3) ; Generate checksum byte
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| 52 |
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| 53 | ; EEPROM types
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| 54 | struc EEPROM_TYPE
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| 55 | .2816_2kiB resb 2
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| 56 | .2864_8kiB resb 2
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| 57 | .2864_8kiB_MOD resb 2 ; Reversed A0 and A3 address lines
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| 58 | .28256_32kiB resb 2
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| 59 | .28512_64kiB resb 2
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| 60 | .SST_39SF resb 2
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| 61 | endstruc
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| 62 |
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| 63 | ; Software Data Protection commands
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| 64 | struc SDP_COMMAND
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| 65 | .none resb 2 ; Do not use any SDP command
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| 66 | .enable resb 2 ; Flash with SDP enable command
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| 67 | .disable resb 2 ; Flash with SDP disable command
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| 68 | endstruc
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| 69 |
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| 70 | ; Page sizes
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| 71 | struc EEPROM_PAGE
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| 72 | .1_byte resb 2
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| 73 | .2_bytes resb 2
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| 74 | .4_bytes resb 2
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| 75 | .8_bytes resb 2
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| 76 | .16_bytes resb 2
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| 77 | .32_bytes resb 2
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| 78 | .64_bytes resb 2
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| 79 | endstruc
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| 80 |
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| 81 | ; Default CFGVARS settings
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| 82 | DEFAULT_CFGVARS_FLAGS EQU FLG_CFGVARS_CHECKSUM
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| 83 | DEFAULT_EEPROM_SEGMENT EQU 0D000h
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| 84 | DEFAULT_EEPROM_TYPE EQU EEPROM_TYPE.2864_8kiB
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| 85 | DEFAULT_PAGE_SIZE EQU EEPROM_PAGE.1_byte
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| 86 | DEFAULT_SDP_COMMAND EQU SDP_COMMAND.enable
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| 87 |
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| 88 |
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| 89 | ; Variables required for flashing
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| 90 | struc FLASHVARS
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| 91 | .fpNextSourcePage resb 4
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| 92 | .fpNextComparisonPage resb 4
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| 93 | .fpNextDestinationPage resb 4
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| 94 | .wPagesToFlash resb 2 ; 0 = 65536
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| 95 | .wEepromPageSize resb 2 ; 1, 2, 4, 8, 16, 32 or 64
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| 96 | .bEepromSdpCommand resb 1
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| 97 | .bEepromType resb 1
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| 98 |
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| 99 | .wProgressUpdateParam resb 2
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| 100 | .wTimeoutCounter resb 2 ; On SSI, this is timeout cal
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| 101 | .wLastOffsetWritten resb 2
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| 102 | .bLastByteWritten resb 1
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| 103 | .flashResult resb 1
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| 104 | endstruc
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| 105 |
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| 106 | ; Flashing results
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| 107 | struc FLASH_RESULT
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| 108 | .success resb 2
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| 109 | .DeviceNotDetected resb 2
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| 110 | .PollingTimeoutError resb 2
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| 111 | .DataVerifyError resb 2
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| 112 | endstruc
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| 113 |
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| 114 |
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| 115 | %endif ; VARIABLES_INC
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