forked from KolibriOS/kolibrios
375 lines
12 KiB
PHP
375 lines
12 KiB
PHP
;******************************************************
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; ïîèñê ïðèâîäîâ HDD è CD
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; àâòîð èñõîäíîãî òåêñòà Êóëàêîâ Âëàäèìèð Ãåííàäüåâè÷.
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; àäàïòàöèÿ è äîðàáîòêà Mario79
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;******************************************************
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;****************************************************
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;* ÏÎÈÑÊ HDD è CD *
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;****************************************************
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FindHDD:
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mov [ChannelNumber],1
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mov [DiskNumber],0
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call FindHDD_3
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; mov ax,[Sector512+176]
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; mov [0x40006],ax
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; mov ax,[Sector512+126]
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; mov [0x40008],ax
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; mov ax,[Sector512+128]
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; mov [0x40008],ax
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mov [DiskNumber],1
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call FindHDD_3
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; mov al,[Sector512+176]
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; mov [0x40007],al
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inc [ChannelNumber]
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mov [DiskNumber],0
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call FindHDD_3
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; mov al,[Sector512+176]
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; mov [0x40008],al
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mov [DiskNumber],1
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call FindHDD_1
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; mov al,[Sector512+176]
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; mov [0x40009],al
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jmp EndFindHDD
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FindHDD_1:
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call ReadHDD_ID
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cmp [DevErrorCode],0
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jne FindHDD_2
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cmp [Sector512+6],word 16
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ja FindHDD_2
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cmp [Sector512+12],word 255
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ja FindHDD_2
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inc byte [0x40001]
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jmp FindHDD_2_2
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FindHDD_2:
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call DeviceReset
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cmp [DevErrorCode],0
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jne FindHDD_2_2
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call ReadCD_ID
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cmp [DevErrorCode],0
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jne FindHDD_2_2
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inc byte [0x40001]
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inc byte [0x40001]
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FindHDD_2_2:
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ret
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FindHDD_3:
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call FindHDD_1
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shl byte [0x40001],2
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ret
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; Àäðåñ ñ÷èòûâàåìîãî ñåêòîðà â ðåæèìå LBA
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SectorAddress DD ?
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;*************************************************
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;* ×ÒÅÍÈÅ ÈÄÅÍÒÈÔÈÊÀÒÎÐÀ ÆÅÑÒÊÎÃÎ ÄÈÑÊÀ *
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;* Âõîäíûå ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå *
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;* ïåðåìåííûå: *
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;* ChannelNumber - íîìåð êàíàëà (1 èëè 2); *
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;* DiskNumber - íîìåð äèñêà íà êàíàëå (0 èëè 1). *
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;* Èäåíòèôèêàöèîííûé áëîê äàííûõ ñ÷èòûâàåòñÿ *
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;* â ìàññèâ Sector512. *
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;*************************************************
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ReadHDD_ID:
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; Çàäàòü ðåæèì CHS
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mov [ATAAddressMode],0
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; Ïîñëàòü êîìàíäó èäåíòèôèêàöèè óñòðîéñòâà
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mov [ATAFeatures],0
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mov [ATAHead],0
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mov [ATACommand],0ECh
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call SendCommandToHDD
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cmp [DevErrorCode],0 ;ïðîâåðèòü êîä îøèáêè
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jne @@End ;çàêîí÷èòü, ñîõðàíèâ êîä îøèáêè
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mov DX,[ATABasePortAddr]
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add DX,7 ;àäðåñ ðåãèñòðà ñîñòîÿíèÿ
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mov ecx,0xffff
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@@WaitCompleet:
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; Ïðîâåðèòü âðåìÿ âûïîëíåíèÿ êîìàíäû
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dec ecx
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cmp ecx,0
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je @@Error1 ;îøèáêà òàéì-àóòà
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; Ïðîâåðèòü ãîòîâíîñòü
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in AL,DX
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test AL,80h ;ñîñòîÿíèå ñèãíàëà BSY
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jnz @@WaitCompleet
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test AL,1 ;ñîñòîÿíèå ñèãíàëà ERR
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jnz @@Error6
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test AL,08h ;ñîñòîÿíèå ñèãíàëà DRQ
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jz @@WaitCompleet
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; Ïðèíÿòü áëîê äàííûõ îò êîíòðîëëåðà
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; mov AX,DS
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; mov ES,AX
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mov EDI,Sector512 ;offset Sector512
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mov DX,[ATABasePortAddr] ;ðåãèñòð äàííûõ
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mov CX,256 ;÷èñëî ñ÷èòûâàåìûõ ñëîâ
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rep insw ;ïðèíÿòü áëîê äàííûõ
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jmp @@End
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; Çàïèñàòü êîä îøèáêè
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@@Error1:
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mov [DevErrorCode],1
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jmp @@End
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@@Error6:
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mov [DevErrorCode],6
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@@End: ret
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; Ñòàíäàðòíûå áàçîâûå àäðåñà êàíàëîâ 1 è 2
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StandardATABases DW 1F0h, 170h
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; Íîìåð êàíàëà
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ChannelNumber DW ?
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; Íîìåð äèñêà
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DiskNumber DB ?
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; Áàçîâûé àäðåñ ãðóïïû ïîðòîâ êîíòðîëëåðà ATA
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ATABasePortAddr DW ?
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; Ïàðàìåòðû ATA-êîìàíäû
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ATAFeatures DB ? ;îñîáåííîñòè
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ATASectorCount DB ? ;êîëè÷åñòâî îáðàáàòûâàåìûõ ñåêòîðîâ
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ATASectorNumber DB ? ;íîìåð íà÷àëüíîãî ñåêòîðà
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ATACylinder DW ? ;íîìåð íà÷àëüíîãî öèëèíäðà
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ATAHead DB ? ;íîìåð íà÷àëüíîé ãîëîâêè
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ATAAddressMode DB ? ;ðåæèì àäðåñàöèè (0 - CHS, 1 - LBA)
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ATACommand DB ? ;êîä êîìàíäû, ïîäëåæàùåé âûïîëíåíèþ
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; Êîä îøèáêè (0 - íåò îøèáîê, 1 - ïðåâûøåí äîïóñòèìûé
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; èíòåðâàë îæèäàíèÿ, 2 - íåâåðíûé êîä ðåæèìà àäðåñàöèè,
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; 3 - íåâåðíûé íîìåð êàíàëà, 4 - íåâåðíûé íîìåð äèñêà,
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; 5 - íåâåðíûé íîìåð ãîëîâêè, 6 - îøèáêà ïðè âûïîëíåíèè
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; êîìàíäû)
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DevErrorCode DB ?
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;****************************************************
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;* ÏÎÑËÀÒÜ ÊÎÌÀÍÄÓ ÇÀÄÀÍÍÎÌÓ ÄÈÑÊÓ *
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;* Âõîäíûå ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå *
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;* ïåðåìåííûå: *
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;* ChannelNumber - íîìåð êàíàëà (1 èëè 2); *
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;* DiskNumber - íîìåð äèñêà (0 èëè 1); *
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;* ATAFeatures - "îñîáåííîñòè"; *
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;* ATASectorCount - êîëè÷åñòâî ñåêòîðîâ; *
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;* ATASectorNumber - íîìåð íà÷àëüíîãî ñåêòîðà; *
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;* ATACylinder - íîìåð íà÷àëüíîãî öèëèíäðà; *
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;* ATAHead - íîìåð íà÷àëüíîé ãîëîâêè; *
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;* ATAAddressMode - ðåæèì àäðåñàöèè (0-CHS, 1-LBA); *
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;* ATACommand - êîä êîìàíäû. *
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;* Ïîñëå óñïåøíîãî âûïîëíåíèÿ ôóíêöèè: *
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;* â ATABasePortAddr - áàçîâûé àäðåñ HDD; *
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;* â DevErrorCode - íîëü. *
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;* Ïðè âîçíèêíîâåíèè îøèáêè â DevErrorCode áóäåò *
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;* âîçâðàùåí êîä îøèáêè. *
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;****************************************************
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SendCommandToHDD:
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; Ïðîâåðèòü çíà÷åíèå êîäà ðåæèìà
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cmp [ATAAddressMode],1
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ja @@Err2
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; Ïðîâåðèòü êîððåêòíîñòü íîìåðà êàíàëà
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mov BX,[ChannelNumber]
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cmp BX,1
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jb @@Err3
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cmp BX,2
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ja @@Err3
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; Óñòàíîâèòü áàçîâûé àäðåñ
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dec BX
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shl BX,1
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movzx ebx,bx
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mov AX,[ebx+StandardATABases]
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mov [ATABasePortAddr],AX
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; Îæèäàíèå ãîòîâíîñòè HDD ê ïðèåìó êîìàíäû
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; Âûáðàòü íóæíûé äèñê
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mov DX,[ATABasePortAddr]
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add DX,6 ;àäðåñ ðåãèñòðà ãîëîâîê
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mov AL,[DiskNumber]
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cmp AL,1 ;ïðîâåðèòü íîìåðà äèñêà
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ja @@Err4
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shl AL,4
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or AL,10100000b
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out DX,AL
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; Îæèäàòü, ïîêà äèñê íå áóäåò ãîòîâ
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inc DX
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mov ecx,0xfff
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; mov eax,[timer_ticks]
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; mov [TickCounter_1],eax
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@@WaitHDReady:
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; Ïðîâåðèòü âðåìÿ îæèäàíèÿ
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dec ecx
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cmp ecx,0
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je @@Err1
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; mov eax,[timer_ticks]
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; sub eax,[TickCounter_1]
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; cmp eax,300 ;îæèäàòü 300 òèêîâ
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; ja @@Err1 ;îøèáêà òàéì-àóòà
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; Ïðî÷èòàòü ðåãèñòð ñîñòîÿíèÿ
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in AL,DX
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; Ïðîâåðèòü ñîñòîÿíèå ñèãíàëà BSY
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test AL,80h
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jnz @@WaitHDReady
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; Ïðîâåðèòü ñîñòîÿíèå ñèãíàëà DRQ
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test AL,08h
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jnz @@WaitHDReady
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; Çàãðóçèòü êîìàíäó â ðåãèñòðû êîíòðîëëåðà
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cli
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mov DX,[ATABasePortAddr]
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inc DX ;ðåãèñòð "îñîáåííîñòåé"
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mov AL,[ATAFeatures]
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out DX,AL
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inc DX ;ñ÷åò÷èê ñåêòîðîâ
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mov AL,[ATASectorCount]
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out DX,AL
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inc DX ;ðåãèñòð íîìåðà ñåêòîðà
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mov AL,[ATASectorNumber]
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out DX,AL
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inc DX ;íîìåð öèëèíäðà (ìëàäøèé áàéò)
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mov AX,[ATACylinder]
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out DX,AL
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inc DX ;íîìåð öèëèíäðà (ñòàðøèé áàéò)
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mov AL,AH
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out DX,AL
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inc DX ;íîìåð ãîëîâêè/íîìåð äèñêà
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mov AL,[DiskNumber]
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shl AL,4
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cmp [ATAHead],0Fh ;ïðîâåðèòü íîìåð ãîëîâêè
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ja @@Err5
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or AL,[ATAHead]
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or AL,10100000b
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mov AH,[ATAAddressMode]
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shl AH,6
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or AL,AH
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out DX,AL
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; Ïîñëàòü êîìàíäó
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mov AL,[ATACommand]
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inc DX ;ðåãèñòð êîìàíä
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out DX,AL
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sti
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; Ñáðîñèòü ïðèçíàê îøèáêè
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mov [DevErrorCode],0
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jmp @@End_2
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; Çàïèñàòü êîä îøèáêè
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@@Err1: mov [DevErrorCode],1
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jmp @@End_2
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@@Err2: mov [DevErrorCode],2
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jmp @@End_2
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@@Err3: mov [DevErrorCode],3
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jmp @@End_2
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@@Err4: mov [DevErrorCode],4
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jmp @@End_2
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@@Err5: mov [DevErrorCode],5
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; Çàâåðøåíèå ðàáîòû ïðîãðàììû
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@@End_2:
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ret
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;*************************************************
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;* ×ÒÅÍÈÅ ÈÄÅÍÒÈÔÈÊÀÒÎÐÀ ÓÑÒÐÎÉÑÒÂÀ ATAPI *
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;* Âõîäíûå ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå *
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;* ïåðìåííûå: *
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;* ChannelNumber - íîìåð êàíàëà; *
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;* DiskNumber - íîìåð äèñêà íà êàíàëå. *
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;* Èäåíòèôèêàöèîííûé áëîê äàííûõ ñ÷èòûâàåòñÿ *
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;* â ìàññèâ Sector512. *
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;*************************************************
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ReadCD_ID:
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; Çàäàòü ðåæèì CHS
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mov [ATAAddressMode],0
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; Ïîñëàòü êîìàíäó èäåíòèôèêàöèè óñòðîéñòâà
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mov [ATAFeatures],0
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mov [ATASectorCount],0
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mov [ATASectorNumber],0
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mov [ATACylinder],0
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mov [ATAHead],0
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mov [ATACommand],0A1h
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call SendCommandToHDD
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cmp [DevErrorCode],0 ;ïðîâåðèòü êîä îøèáêè
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jne @@End_1 ;çàêîí÷èòü, ñîõðàíèâ êîä îøèáêè
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; Îæèäàòü ãîòîâíîñòü äàííûõ HDD
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mov DX,[ATABasePortAddr]
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add DX,7 ;ïîðò 1õ7h
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mov ecx,0xffff
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@@WaitCompleet_1:
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; Ïðîâåðèòü âðåìÿ
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dec ecx
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cmp ecx,0
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je @@Error1_1 ;îøèáêà òàéì-àóòà
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; Ïðîâåðèòü ãîòîâíîñòü
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in AL,DX
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test AL,80h ;ñîñòîÿíèå ñèãíàëà BSY
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jnz @@WaitCompleet_1
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test AL,1 ;ñîñòîÿíèå ñèãíàëà ERR
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jnz @@Error6_1
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test AL,08h ;ñîñòîÿíèå ñèãíàëà DRQ
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jz @@WaitCompleet_1
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; Ïðèíÿòü áëîê äàííûõ îò êîíòðîëëåðà
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; mov AX,DS
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; mov ES,AX
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mov EDI,Sector512 ;offset Sector512
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mov DX,[ATABasePortAddr] ;ïîðò 1x0h
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mov CX,256 ;÷èñëî ñ÷èòûâàåìûõ ñëîâ
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rep insw
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jmp @@End_1
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; Çàïèñàòü êîä îøèáêè
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@@Error1_1:
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mov [DevErrorCode],1
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jmp @@End_1
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@@Error6_1:
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mov [DevErrorCode],6
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@@End_1:
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ret
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;*************************************************
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;* ÑÁÐÎÑ ÓÑÒÐÎÉÑÒÂÀ *
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;* Âõîäíûå ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå *
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;* ïåðåìåííûå: *
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;* ChannelNumber - íîìåð êàíàëà (1 èëè 2); *
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;* DiskNumber - íîìåð äèñêà (0 èëè 1). *
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;*************************************************
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DeviceReset:
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; Ïðîâåðèòü êîððåêòíîñòü íîìåðà êàíàëà
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mov BX,[ChannelNumber]
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cmp BX,1
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jb @@Err3_2
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cmp BX,2
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ja @@Err3_2
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; Óñòàíîâèòü áàçîâûé àäðåñ
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dec BX
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shl BX,1
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movzx ebx,bx
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mov DX,[ebx+StandardATABases]
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mov [ATABasePortAddr],DX
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; Âûáðàòü íóæíûé äèñê
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add DX,6 ;àäðåñ ðåãèñòðà ãîëîâîê
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mov AL,[DiskNumber]
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cmp AL,1 ;ïðîâåðèòü íîìåðà äèñêà
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ja @@Err4_2
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shl AL,4
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or AL,10100000b
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out DX,AL
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; Ïîñëàòü êîìàíäó "Ñáðîñ"
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mov AL,08h
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inc DX ;ðåãèñòð êîìàíä
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out DX,AL
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mov ecx,0x80000
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@@WaitHDReady_1:
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; Ïðîâåðèòü âðåìÿ îæèäàíèÿ
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dec ecx
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cmp ecx,0
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je @@Err1_2 ;îøèáêà òàéì-àóòà
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; Ïðî÷èòàòü ðåãèñòð ñîñòîÿíèÿ
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in AL,DX
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; Ïðîâåðèòü ñîñòîÿíèå ñèãíàëà BSY
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test AL,80h
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jnz @@WaitHDReady_1
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; Ñáðîñèòü ïðèçíàê îøèáêè
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mov [DevErrorCode],0
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jmp @@End_3
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; Îáðàáîòêà îøèáîê
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@@Err1_2: mov [DevErrorCode],1
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jmp @@End_3
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@@Err3_2: mov [DevErrorCode],3
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jmp @@End_3
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@@Err4_2: mov [DevErrorCode],4
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; Çàïèñàòü êîä îøèáêè
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@@End_3:
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ret
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EndFindHDD:
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