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Rev 996 Rev 2971
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;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
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;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License    ;;
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;; Distributed under terms of the GNU General Public License    ;;
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;;                                                              ;;
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;;                                                              ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision: 996 $
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$Revision: 2971 $
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;**********************************************************
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;**********************************************************
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;  Íåïîñðåäñòâåííàÿ ðàáîòà ñ óñòðîéñòâîì ÑD (ATAPI)
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;  Íåïîñðåäñòâåííàÿ ðàáîòà ñ óñòðîéñòâîì ÑD (ATAPI)
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;**********************************************************
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;**********************************************************
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; Àâòîð ÷àñòè èñõîäíîãî òåêñòà Êóëàêîâ Âëàäèìèð Ãåííàäüåâè÷
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; Àâòîð ÷àñòè èñõîäíîãî òåêñòà Êóëàêîâ Âëàäèìèð Ãåííàäüåâè÷
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; Àäàïòàöèÿ, äîðàáîòêà è ðàçðàáîòêà Mario79
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; Àäàïòàöèÿ, äîðàáîòêà è ðàçðàáîòêà Mario79
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; Ìàêñèìàëüíîå êîëè÷åñòâî ïîâòîðåíèé îïåðàöèè ÷òåíè
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; Ìàêñèìàëüíîå êîëè÷åñòâî ïîâòîðåíèé îïåðàöèè ÷òåíèÿ
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MaxRetr equ 10
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MaxRetr equ 10
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	pusha
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	pusha
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; Çàäàòü ðàçìåð ñåêòîðà
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; Çàäàòü ðàçìåð ñåêòîðà
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	mov	  [CDBlockSize],2048 ;2352
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	mov	  [CDBlockSize],2048 ;2352
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; Î÷èñòèòü áóôåð ïàêåòíîé êîìàíäû
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; Î÷èñòèòü áóôåð ïàêåòíîé êîìàíäû
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	call  clear_packet_buffer
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	call  clear_packet_buffer
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; Ñôîðìèðîâàòü ïàêåòíóþ êîìàíäó äëÿ ñ÷èòûâàíè
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; Ñôîðìèðîâàòü ïàêåòíóþ êîìàíäó äëÿ ñ÷èòûâàíèÿ
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; ñåêòîðà äàííûõ
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; ñåêòîðà äàííûõ
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	; Çàäàòü êîä êîìàíäû Read CD
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	; Çàäàòü êîä êîìàíäû Read CD
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	mov	  [PacketCommand],byte 0x28  ;0xBE
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	mov	  [PacketCommand],byte 0x28  ;0xBE
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	; Çàäàòü àäðåñ ñåêòîðà
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	; Çàäàòü àäðåñ ñåêòîðà
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	mov   AX,word [CDSectorAddress+2]
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	mov   AX,word [CDSectorAddress+2]
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MaxCDWaitTime equ 1000 ;200 ;10 ñåêóíä
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MaxCDWaitTime equ 1000 ;200 ;10 ñåêóíä
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; Îáëàñòü ïàìÿòè äëÿ ôîðìèðîâàíèÿ ïàêåòíîé êîìàíäû
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; Îáëàñòü ïàìÿòè äëÿ ôîðìèðîâàíèÿ ïàêåòíîé êîìàíäû
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PacketCommand:	 rb 12	;DB 12 DUP (?)
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PacketCommand:	 rb 12	;DB 12 DUP (?)
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; Îáëàñòü ïàìÿòè äëÿ ïðèåìà äàííûõ îò äèñêîâîäà
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; Îáëàñòü ïàìÿòè äëÿ ïðèåìà äàííûõ îò äèñêîâîäà
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;CDDataBuf       DB 4096 DUP (0)
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; Ðàçìåð ïðèíèìàåìîãî áëîêà äàííûõ â áàéòàõ
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; Ðàçìåð ïðèíèìàåìîãî áëîêà äàííûõ â áàéòàõ
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CDBlockSize	DW ?
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CDBlockSize	DW ?
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; Àäðåñ ñ÷èòûâàåìîãî ñåêòîðà äàííûõ
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; Àäðåñ ñ÷èòûâàåìîãî ñåêòîðà äàííûõ
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CDSectorAddress: DD ?
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CDSectorAddress: DD ?
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; Âðåìÿ íà÷àëà î÷åðåäíîé îïåðàöèè ñ äèñêîì
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; Âðåìÿ íà÷àëà î÷åðåäíîé îïåðàöèè ñ äèñêîì
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TickCounter_1 DD 0
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TickCounter_1 DD 0
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; Âðåìÿ íà÷àëà îæèäàíèÿ ãîòîâíîñòè óñòðîéñòâà
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; Âðåìÿ íà÷àëà îæèäàíèÿ ãîòîâíîñòè óñòðîéñòâà
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WURStartTime DD 0
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WURStartTime DD 0
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; óêàçàòåëü áóôåðà äëÿ ñ÷èòûâàíè
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; óêàçàòåëü áóôåðà äëÿ ñ÷èòûâàíèÿ
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CDDataBuf_pointer dd 0
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CDDataBuf_pointer dd 0
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;****************************************************
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;****************************************************
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; ïàêåòíîé êîìàíäû
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; ïàêåòíîé êîìàíäû
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	mov	DX,[ATABasePortAddr]
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	mov	DX,[ATABasePortAddr]
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	add	DX,7   ;ïîðò 1õ7h
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	add	DX,7   ;ïîðò 1õ7h
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@@WaitDevice0_1:
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@@WaitDevice0_1:
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	call	change_task
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	call	change_task
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	; Ïðîâåðèòü âðåìÿ îæèäàíè
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	; Ïðîâåðèòü âðåìÿ îæèäàíèÿ
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	mov	EAX,[timer_ticks]
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	mov	EAX,[timer_ticks]
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	sub	EAX,[TickCounter_1]
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	sub	EAX,[TickCounter_1]
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	cmp	EAX,BSYWaitTime
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	cmp	EAX,BSYWaitTime
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	ja	@@Err1_3   ;îøèáêà òàéì-àóòà
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	ja	@@Err1_3   ;îøèáêà òàéì-àóòà
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	; Ïðîâåðèòü ãîòîâíîñòü
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	; Ïðîâåðèòü ãîòîâíîñòü
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	cmp    ecx,0
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	cmp    ecx,0
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	je     @@Err1_4
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	je     @@Err1_4
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	jmp    .test
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	jmp    .test
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@@:
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@@:
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	call	change_task
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	call	change_task
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	; Ïðîâåðèòü âðåìÿ îæèäàíè
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	; Ïðîâåðèòü âðåìÿ îæèäàíèÿ
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	mov	eax,[timer_ticks]
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	mov	eax,[timer_ticks]
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	sub	eax,[TickCounter_1]
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	sub	eax,[TickCounter_1]
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	cmp	eax,BSYWaitTime ;300    ;îæèäàòü 3 ñåê.
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	cmp	eax,BSYWaitTime ;300    ;îæèäàòü 3 ñåê.
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	ja	@@Err1_4   ;îøèáêà òàéì-àóòà
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	ja	@@Err1_4   ;îøèáêà òàéì-àóòà
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	; Ïðî÷èòàòü ðåãèñòð ñîñòîÿíè
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	; Ïðî÷èòàòü ðåãèñòð ñîñòîÿíèÿ
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.test:
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.test:
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	in	AL,DX
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	in	AL,DX
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	; Ïðîâåðèòü ñîñòîÿíèå ñèãíàëà BSY
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	; Ïðîâåðèòü ñîñòîÿíèå ñèãíàëà BSY
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	test	AL,80h
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	test	AL,80h
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	jnz	@@WaitHDReady_2
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	jnz	@@WaitHDReady_2
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; Î÷èñòèòü áóôåð ïàêåòíîé êîìàíäû
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; Î÷èñòèòü áóôåð ïàêåòíîé êîìàíäû
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	call  clear_packet_buffer
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	call  clear_packet_buffer
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; Ñôîðìèðîâàòü êîìàíäó START/STOP UNIT
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; Ñôîðìèðîâàòü êîìàíäó START/STOP UNIT
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	; Çàäàòü êîä êîìàíäû
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	; Çàäàòü êîä êîìàíäû
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	mov	[PacketCommand],word 1Bh
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	mov	[PacketCommand],word 1Bh
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	; Çàäàòü îïåðàöèþ çàãðóçêè íîñèòåë
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	; Çàäàòü îïåðàöèþ çàãðóçêè íîñèòåëÿ
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	mov	[PacketCommand+4],word 00000011b
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	mov	[PacketCommand+4],word 00000011b
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; Ïîäàòü êîìàíäó
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; Ïîäàòü êîìàíäó
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	call	SendPacketNoDatCommand
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	call	SendPacketNoDatCommand
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	popa
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	popa
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	ret
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	ret
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; Î÷èñòèòü áóôåð ïàêåòíîé êîìàíäû
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; Î÷èñòèòü áóôåð ïàêåòíîé êîìàíäû
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	call  clear_packet_buffer
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	call  clear_packet_buffer
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; Ñôîðìèðîâàòü êîìàíäó START/STOP UNIT
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; Ñôîðìèðîâàòü êîìàíäó START/STOP UNIT
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	; Çàäàòü êîä êîìàíäû
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	; Çàäàòü êîä êîìàíäû
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	mov	[PacketCommand],word 1Bh
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	mov	[PacketCommand],word 1Bh
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	; Çàäàòü îïåðàöèþ èçâëå÷åíèÿ íîñèòåë
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	; Çàäàòü îïåðàöèþ èçâëå÷åíèÿ íîñèòåëÿ
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	mov	[PacketCommand+4],word 00000010b
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	mov	[PacketCommand+4],word 00000010b
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; Ïîäàòü êîìàíäó
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; Ïîäàòü êîìàíäó
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	call	SendPacketNoDatCommand
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	call	SendPacketNoDatCommand
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	popa
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	popa
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	ret
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	ret