[497] | 1 | ; Project name : XTIDE Universal BIOS Configurator v2 |
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| 2 | ; Description : Functions to automatically configure XTIDE |
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| 3 | ; Universal BIOS for current system. |
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| 4 | |
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| 5 | ; |
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| 6 | ; XTIDE Universal BIOS and Associated Tools |
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[526] | 7 | ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team. |
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[497] | 8 | ; |
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| 9 | ; This program is free software; you can redistribute it and/or modify |
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| 10 | ; it under the terms of the GNU General Public License as published by |
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| 11 | ; the Free Software Foundation; either version 2 of the License, or |
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| 12 | ; (at your option) any later version. |
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| 13 | ; |
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| 14 | ; This program is distributed in the hope that it will be useful, |
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| 15 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | ; GNU General Public License for more details. |
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| 18 | ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html |
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| 19 | ; |
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| 20 | |
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| 21 | ; Section containing code |
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| 22 | SECTION .text |
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| 23 | |
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| 24 | |
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| 25 | ;-------------------------------------------------------------------- |
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| 26 | ; AutoConfigure_ForThisSystem |
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| 27 | ; MENUITEM activation function (.fnActivate) |
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| 28 | ; Parameters: |
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| 29 | ; SS:BP: Ptr to MENU |
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| 30 | ; Returns: |
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| 31 | ; Nothing |
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| 32 | ; Corrupts registers: |
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| 33 | ; All, except segments |
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| 34 | ;-------------------------------------------------------------------- |
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| 35 | ALIGN JUMP_ALIGN |
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| 36 | AutoConfigure_ForThisSystem: |
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| 37 | push es |
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| 38 | push ds |
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| 39 | |
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| 40 | call Buffers_GetFileBufferToESDI ; ROMVARS now in ES:DI |
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| 41 | push es |
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| 42 | pop ds ; ROMVARS now in DS:DI |
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[605] | 43 | call ChecksumSystemBios |
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[614] | 44 | call DetectOlivettiM24 |
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[497] | 45 | call ResetIdevarsToDefaultValues |
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| 46 | call DetectIdePortsAndDevices |
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[592] | 47 | call EnableInterruptsForAllStandardControllers |
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[497] | 48 | call StoreAndDisplayNumberOfControllers |
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| 49 | |
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| 50 | pop ds |
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| 51 | pop es |
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[605] | 52 | .Return: |
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[497] | 53 | ret |
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| 54 | |
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| 55 | |
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| 56 | ;-------------------------------------------------------------------- |
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[605] | 57 | ; ChecksumSystemBios |
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| 58 | ; Parameters: |
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| 59 | ; DS:DI: Ptr to ROMVARS |
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| 60 | ; Returns: |
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| 61 | ; Nothing |
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| 62 | ; Corrupts registers: |
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| 63 | ; AX, BX, CX, DX, SI |
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| 64 | ;-------------------------------------------------------------------- |
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| 65 | ALIGN JUMP_ALIGN |
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| 66 | ChecksumSystemBios: |
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| 67 | push ds |
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| 68 | mov si, 0F000h |
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| 69 | mov ds, si |
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| 70 | mov si, 0FFFFh |
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| 71 | ; DS:SI now points to the end of the System BIOS. |
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| 72 | std |
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| 73 | mov cx, 32768 ; The smallest known problematic BIOS so far. |
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| 74 | mov dx, si ; Initialize the checksum |
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| 75 | call CalculateCRC_CCITTfromDSSIwithSizeInCX |
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| 76 | pop ds |
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| 77 | mov bx, .Checksums |
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| 78 | cld |
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| 79 | .NextChecksum: |
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| 80 | mov ax, [cs:bx] |
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| 81 | test ax, ax |
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| 82 | jz SHORT AutoConfigure_ForThisSystem.Return |
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| 83 | inc bx |
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| 84 | inc bx |
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| 85 | cmp ax, dx |
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| 86 | jne SHORT .NextChecksum |
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| 87 | or BYTE [di+ROMVARS.wFlags], FLG_ROMVARS_CLEAR_BDA_HD_COUNT |
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| 88 | mov dx, g_szDlgBadBiosFound |
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| 89 | jmp Dialogs_DisplayNotificationFromCSDX |
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| 90 | |
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| 91 | ALIGN WORD_ALIGN |
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| 92 | .Checksums: |
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| 93 | dw 0D192h ; 32 KB Zenith Z-161 (071784) |
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| 94 | dw 02F69h ; 32 KB Zenith Z-171 (031485) |
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| 95 | dw 0 |
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| 96 | |
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| 97 | |
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| 98 | ;-------------------------------------------------------------------- |
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| 99 | ; CalculateCRC_CCITTfromDSSIwithSizeInCX |
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| 100 | ; Parameters: |
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| 101 | ; DS:SI: Pointer to string to checksum |
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| 102 | ; CX: Length of string to checksum |
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| 103 | ; DX: Checksum (initially 0FFFFh) |
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| 104 | ; DF: Set/Clear depending on direction wanted |
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| 105 | ; Returns: |
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| 106 | ; DX: Checksum |
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| 107 | ; DS:SI: Pointer to byte after the end of checksummed string |
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| 108 | ; Corrupts registers: |
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| 109 | ; AX, BX, CX |
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| 110 | ;-------------------------------------------------------------------- |
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| 111 | ALIGN JUMP_ALIGN |
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| 112 | CalculateCRC_CCITTfromDSSIwithSizeInCX: |
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| 113 | ; jcxz .Return |
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| 114 | xor bh, bh |
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| 115 | mov ah, 0E0h |
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| 116 | .NextByte: |
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| 117 | lodsb |
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| 118 | xor dh, al |
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| 119 | mov bl, dh |
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| 120 | rol bx, 1 |
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| 121 | rol bx, 1 |
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| 122 | rol bx, 1 |
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| 123 | rol bx, 1 |
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| 124 | xor dx, bx |
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| 125 | rol bx, 1 |
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| 126 | xchg dh, dl |
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| 127 | xor dx, bx |
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| 128 | ror bx, 1 |
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| 129 | ror bx, 1 |
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| 130 | ror bx, 1 |
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| 131 | ror bx, 1 |
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| 132 | and bl, ah |
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| 133 | xor dx, bx |
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| 134 | ror bx, 1 |
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| 135 | xor dh, bl |
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| 136 | loop .NextByte |
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| 137 | ;.Return: |
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| 138 | ret |
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| 139 | |
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| 140 | |
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| 141 | ;-------------------------------------------------------------------- |
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[614] | 142 | ; DetectOlivettiM24 |
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| 143 | ; Parameters: |
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| 144 | ; Nothing |
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| 145 | ; Returns: |
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| 146 | ; ZF: Set if computer is not an Olivetti M24 |
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| 147 | ; Clear if computer is an Olivetti M24 |
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| 148 | ; Corrupts registers: |
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| 149 | ; AX, BX, CX, DX |
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| 150 | ;-------------------------------------------------------------------- |
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| 151 | ALIGN JUMP_ALIGN |
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| 152 | DetectOlivettiM24: |
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| 153 | mov ah, 0FEh ; Request the current date and time |
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| 154 | mov ch, 0FFh ; Set the hours to an invalid value |
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| 155 | int BIOS_TIME_PCI_PNP_INTERRUPT_1Ah |
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| 156 | inc ch ; Hours changed? |
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| 157 | jz SHORT .ThisIsNotAnOlivettiM24 |
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| 158 | mov BYTE [cs:IsOlivettiM24], 1 |
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| 159 | .ThisIsNotAnOlivettiM24: |
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| 160 | ret |
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| 161 | |
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| 162 | IsOlivettiM24: |
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| 163 | db 0 |
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| 164 | |
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| 165 | |
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| 166 | ;-------------------------------------------------------------------- |
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[497] | 167 | ; ResetIdevarsToDefaultValues |
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| 168 | ; Parameters: |
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| 169 | ; DS:DI: Ptr to ROMVARS |
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[592] | 170 | ; ES:DI: Ptr to ROMVARS |
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[497] | 171 | ; Returns: |
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| 172 | ; Nothing |
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| 173 | ; Corrupts registers: |
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| 174 | ; AX, CX |
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| 175 | ;-------------------------------------------------------------------- |
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| 176 | ALIGN JUMP_ALIGN |
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| 177 | ResetIdevarsToDefaultValues: |
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| 178 | push di |
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| 179 | add di, BYTE ROMVARS.ideVarsBegin |
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| 180 | mov cx, ROMVARS.ideVarsEnd - ROMVARS.ideVarsBegin |
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| 181 | call Memory_ZeroESDIwithSizeInCX ; Never clears ROMVARS.ideVarsSerialAuto |
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| 182 | pop di |
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| 183 | |
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| 184 | ; Set default values (other than zero) |
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| 185 | mov ax, DISABLE_WRITE_CACHE | (TRANSLATEMODE_AUTO<<TRANSLATEMODE_FIELD_POSITION) | FLG_DRVPARAMS_BLOCKMODE |
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| 186 | mov [di+ROMVARS.ideVars0+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags], ax |
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[502] | 187 | mov [di+ROMVARS.ideVars0+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags], ax |
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| 188 | |
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[497] | 189 | mov [di+ROMVARS.ideVars1+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags], ax |
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[502] | 190 | mov [di+ROMVARS.ideVars1+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags], ax |
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| 191 | |
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[497] | 192 | mov [di+ROMVARS.ideVars2+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags], ax |
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[502] | 193 | mov [di+ROMVARS.ideVars2+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags], ax |
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| 194 | |
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[497] | 195 | mov [di+ROMVARS.ideVars3+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags], ax |
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[502] | 196 | mov [di+ROMVARS.ideVars3+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags], ax |
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[497] | 197 | ret |
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| 198 | |
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| 199 | |
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| 200 | ;-------------------------------------------------------------------- |
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| 201 | ; DetectIdePortsAndDevices |
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| 202 | ; Parameters: |
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| 203 | ; DS:DI: Ptr to ROMVARS |
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| 204 | ; Returns: |
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| 205 | ; CX: Number of controllers detected |
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| 206 | ; Corrupts registers: |
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| 207 | ; AX, BX, DX, SI |
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| 208 | ;-------------------------------------------------------------------- |
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| 209 | ALIGN JUMP_ALIGN |
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| 210 | DetectIdePortsAndDevices: |
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| 211 | xor cx, cx ; Number of devices found |
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| 212 | xor dx, dx ; IDE_PORT_TO_START_DETECTION |
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| 213 | lea si, [di+ROMVARS.ideVarsBegin] ; DS:SI points to first IDEVARS |
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| 214 | |
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| 215 | .DetectFromNextPort: |
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| 216 | call IdeAutodetect_IncrementDXtoNextIdeBasePort |
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| 217 | jz SHORT .AllPortsAlreadyDetected |
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[504] | 218 | push si |
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| 219 | call IdeAutodetect_DetectIdeDeviceFromPortDXAndReturnControlBlockInSI |
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| 220 | mov bx, si |
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| 221 | pop si |
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[497] | 222 | jc SHORT .DetectFromNextPort |
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| 223 | |
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| 224 | ; Device found from port DX, Device Type returned in AL |
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| 225 | inc cx ; Increment number of controllers found |
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| 226 | mov [si+IDEVARS.wBasePort], dx |
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| 227 | mov [si+IDEVARS.wControlBlockPort], bx |
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| 228 | mov [si+IDEVARS.bDevice], al |
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| 229 | |
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| 230 | ; Point to next IDEVARS |
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[505] | 231 | add si, IDEVARS_size |
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[497] | 232 | cmp si, ROMVARS.ideVars3 |
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[505] | 233 | jbe SHORT .DetectFromNextPort |
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[497] | 234 | .AllPortsAlreadyDetected: |
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| 235 | ret |
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| 236 | |
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| 237 | |
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| 238 | ;-------------------------------------------------------------------- |
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[592] | 239 | ; EnableInterruptsForAllStandardControllers |
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[523] | 240 | ; Parameters: |
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| 241 | ; DS:DI: Ptr to ROMVARS |
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| 242 | ; CX: Number of controllers detected |
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| 243 | ; Returns: |
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| 244 | ; Nothing |
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| 245 | ; Corrupts registers: |
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[592] | 246 | ; AX |
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[523] | 247 | ;-------------------------------------------------------------------- |
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| 248 | ALIGN JUMP_ALIGN |
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[592] | 249 | EnableInterruptsForAllStandardControllers: |
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[523] | 250 | jcxz .NoControllersDetected |
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| 251 | call Buffers_IsXTbuildLoaded |
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| 252 | je SHORT .DoNotEnableIRQforXTbuilds |
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| 253 | push di |
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| 254 | push cx |
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| 255 | |
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| 256 | add di, BYTE ROMVARS.ideVars0 ; DS:DI now points first IDEVARS |
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| 257 | .CheckNextController: |
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| 258 | mov al, 14 |
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| 259 | cmp WORD [di+IDEVARS.wBasePort], DEVICE_ATA_PRIMARY_PORT |
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| 260 | je SHORT .EnableIrqAL |
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| 261 | |
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| 262 | inc ax ; 15 |
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| 263 | cmp WORD [di+IDEVARS.wBasePort], DEVICE_ATA_SECONDARY_PORT |
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[592] | 264 | |
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| 265 | %if 0 |
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| 266 | je SHORT .EnableIrqAL |
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| 267 | |
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| 268 | ; Defaults on the GSI Inc. Model 2C EIDE controller |
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| 269 | mov al, 11 |
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| 270 | cmp WORD [di+IDEVARS.wBasePort], DEVICE_ATA_TERTIARY_PORT |
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| 271 | je SHORT .EnableIrqAL |
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| 272 | |
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| 273 | dec ax ; 10 |
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| 274 | cmp WORD [di+IDEVARS.wBasePort], DEVICE_ATA_QUATERNARY_PORT |
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| 275 | %endif |
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| 276 | |
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[523] | 277 | jne SHORT .DoNotEnableIRQ |
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| 278 | |
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| 279 | .EnableIrqAL: |
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| 280 | mov [di+IDEVARS.bIRQ], al |
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| 281 | .DoNotEnableIRQ: |
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[592] | 282 | add di, IDEVARS_size |
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[523] | 283 | loop .CheckNextController |
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| 284 | pop cx |
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| 285 | pop di |
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| 286 | .DoNotEnableIRQforXTbuilds: |
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| 287 | .NoControllersDetected: |
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| 288 | ret |
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| 289 | |
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| 290 | |
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| 291 | ;-------------------------------------------------------------------- |
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[497] | 292 | ; StoreAndDisplayNumberOfControllers |
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| 293 | ; Parameters: |
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| 294 | ; CX: Number of controllers detected |
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| 295 | ; DS:DI: Ptr to ROMVARS |
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| 296 | ; SS:BP: Ptr to MENU |
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| 297 | ; Returns: |
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| 298 | ; Nothing |
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| 299 | ; Corrupts registers: |
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| 300 | ; AX, BX, DX, DI, SI, DS, ES |
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| 301 | ;-------------------------------------------------------------------- |
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| 302 | ALIGN JUMP_ALIGN |
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| 303 | StoreAndDisplayNumberOfControllers: |
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[525] | 304 | xor ax, ax |
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| 305 | or al, cl |
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| 306 | jnz SHORT .AtLeastOneController |
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| 307 | inc ax ; Cannot store zero |
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| 308 | .AtLeastOneController: |
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[497] | 309 | test BYTE [di+ROMVARS.wFlags], FLG_ROMVARS_FULLMODE |
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| 310 | jnz SHORT .FullModeSoNoNeedToLimit |
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| 311 | MIN_U al, MAX_LITE_MODE_CONTROLLERS |
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| 312 | .FullModeSoNoNeedToLimit: |
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| 313 | |
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| 314 | ; Store number of IDE Controllers. This will also modify |
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| 315 | ; menu and set unsaved changes flag. |
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| 316 | push cs |
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| 317 | pop ds |
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| 318 | mov si, g_MenuitemConfigurationIdeControllers |
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| 319 | call Menuitem_StoreValueFromAXtoMenuitemInDSSI |
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| 320 | |
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| 321 | ; Display results (should be changed to proper string formatting) |
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| 322 | add cl, '0' |
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| 323 | mov [cs:g_bControllersDetected], cl |
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| 324 | mov dx, g_szDlgAutoConfigure |
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| 325 | jmp Dialogs_DisplayNotificationFromCSDX |
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