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 8 ; XTIDE Universal BIOS signature string length
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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 |
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32 |
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33 | ; Program global variables
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34 | struc CFGVARS
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35 | .pMenupage resb 2 ; Offset to MENUPAGE to display
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36 | .wFlags resb 2 ; Program flags - Only the low byte is used currently and code depend on this
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37 | .wImageSizeInWords resb 2 ; Size in words for loaded ROM or FILE
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38 | .wEepromSegment resb 2 ; Segment where EEPROM is located
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39 | .bEepromType resb 1 ; EEPROM type
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40 | .bEepromPage resb 1 ; EEPROM page size (EEPROM_PAGE)
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41 | .bSdpCommand resb 1 ; Command for Software Data Protection
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42 | resb 1
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43 | .szOpenedFile resb FILENAME_BUFFER_SIZE
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44 | endstruc
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45 |
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46 | ; Bit defines for CFGVARS.wFlags (changes here might require changes elsewhere)
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47 | FLG_CFGVARS_FILELOADED EQU (1<<0) ; BIOS is loaded from file
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48 | FLG_CFGVARS_ROMLOADED EQU (1<<1) ; BIOS is loaded from EEPROM
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49 | FLG_CFGVARS_UNSAVED EQU (1<<2) ; BIOS has unsaved changes
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50 | FLG_CFGVARS_CHECKSUM EQU (1<<3) ; Generate checksum byte
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51 |
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52 | ; EEPROM types
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53 | struc EEPROM_TYPE
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54 | .2816_2kiB resb 2
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55 | .2864_8kiB resb 2
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56 | .2864_8kiB_MOD resb 2 ; Reversed A0 and A3 address lines
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57 | .28256_32kiB resb 2
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58 | .28512_64kiB resb 2
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59 | endstruc
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60 |
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61 | ; Software Data Protection commands
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62 | struc SDP_COMMAND
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63 | .none resb 2 ; Do not use any SDP command
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64 | .enable resb 2 ; Flash with SDP enable command
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65 | .disable resb 2 ; Flash with SDP disable command
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66 | endstruc
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67 |
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68 | ; Page sizes
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69 | struc EEPROM_PAGE
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70 | .1_byte resb 2
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71 | .2_bytes resb 2
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72 | .4_bytes resb 2
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73 | .8_bytes resb 2
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74 | .16_bytes resb 2
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75 | .32_bytes resb 2
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76 | .64_bytes resb 2
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77 | endstruc
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78 |
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79 | ; Default CFGVARS settings
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80 | DEFAULT_CFGVARS_FLAGS EQU FLG_CFGVARS_CHECKSUM
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81 | DEFAULT_EEPROM_SEGMENT EQU 0D000h
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82 | DEFAULT_EEPROM_TYPE EQU EEPROM_TYPE.2864_8kiB
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83 | DEFAULT_PAGE_SIZE EQU EEPROM_PAGE.1_byte
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84 | DEFAULT_SDP_COMMAND EQU SDP_COMMAND.enable
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85 |
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86 |
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87 | ; Variables required for flashing
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88 | struc FLASHVARS
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89 | .fpNextSourcePage resb 4
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90 | .fpNextComparisonPage resb 4
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91 | .fpNextDestinationPage resb 4
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92 | .wPagesToFlash resb 2 ; 0 = 65536
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93 | .wEepromPageSize resb 2 ; 1, 2, 4, 8, 16, 32 or 64
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94 | .bEepromSdpCommand resb 1
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95 | .bEepromType resb 1
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96 |
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97 | .wProgressUpdateParam resb 2
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98 | .wTimeoutCounter resb 2
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99 | .wLastOffsetWritten resb 2
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100 | .bLastByteWritten resb 1
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101 | .flashResult resb 1
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102 | endstruc
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103 |
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104 | ; Flashing results
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105 | struc FLASH_RESULT
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106 | .success resb 2
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107 | .PollingTimeoutError resb 2
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108 | .DataVerifyError resb 2
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109 | endstruc
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110 |
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111 |
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112 | %endif ; VARIABLES_INC
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