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/kernel/branches/Kolibri-acpi/blkdev/flp_drv.inc
0,0 → 1,626
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;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
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$Revision$
 
 
;**********************************************************
; Íåïîñðåäñòâåííàÿ ðàáîòà ñ êîíòðîëëåðîì ãèáêîãî äèñêà
;**********************************************************
; Àâòîð èñõîäíîãî òåêñòà Êóëàêîâ Âëàäèìèð Ãåííàäüåâè÷.
; Àäàïòàöèÿ è äîðàáîòêà Mario79
 
;give_back_application_data: ; ïåðåñëàòü ïðèëîæåíèþ
; mov edi,[TASK_BASE]
; mov edi,[edi+TASKDATA.mem_start]
; add edi,ecx
give_back_application_data_1:
mov esi,FDD_BUFF ;FDD_DataBuffer ;0x40000
xor ecx,ecx
mov cx,128
cld
rep movsd
ret
 
;take_data_from_application: ; âçÿòü èç ïðèëîæåíè
; mov esi,[TASK_BASE]
; mov esi,[esi+TASKDATA.mem_start]
; add esi,ecx
take_data_from_application_1:
mov edi,FDD_BUFF ;FDD_DataBuffer ;0x40000
xor ecx,ecx
mov cx,128
cld
rep movsd
ret
 
; Êîäû çàâåðøåíèÿ îïåðàöèè ñ êîíòðîëëåðîì (FDC_Status)
FDC_Normal equ 0 ;íîðìàëüíîå çàâåðøåíèå
FDC_TimeOut equ 1 ;îøèáêà òàéì-àóòà
FDC_DiskNotFound equ 2 ;â äèñêîâîäå íåò äèñêà
FDC_TrackNotFound equ 3 ;äîðîæêà íå íàéäåíà
FDC_SectorNotFound equ 4 ;ñåêòîð íå íàéäåí
 
; Ìàêñèìàëüíûå çíà÷åíèÿ êîîðäèíàò ñåêòîðà (çàäàííûå
; çíà÷åíèÿ ñîîòâåòñòâóþò ïàðàìåòðàì ñòàíäàðòíîãî
; òðåõäþéìîâîãî ãèáêîãî äèñêà îáúåìîì 1,44 Ìá)
MAX_Track equ 79
MAX_Head equ 1
MAX_Sector equ 18
 
uglobal
; Ñ÷åò÷èê òèêîâ òàéìåðà
TickCounter dd ?
; Êîä çàâåðøåíèÿ îïåðàöèè ñ êîíòðîëëåðîì ÍÃÌÄ
FDC_Status DB ?
; Ôëàã ïðåðûâàíèÿ îò ÍÃÌÄ
FDD_IntFlag DB ?
; Ìîìåíò íà÷àëà ïîñëåäíåé îïåðàöèè ñ ÍÃÌÄ
FDD_Time DD ?
; Íîìåð äèñêîâîäà
FDD_Type db 0
; Êîîðäèíàòû ñåêòîðà
FDD_Track DB ?
FDD_Head DB ?
FDD_Sector DB ?
 
; Áëîê ðåçóëüòàòà îïåðàöèè
FDC_ST0 DB ?
FDC_ST1 DB ?
FDC_ST2 DB ?
FDC_C DB ?
FDC_H DB ?
FDC_R DB ?
FDC_N DB ?
; Ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ÷òåíè
ReadRepCounter DB ?
; Ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ðåêàëèáðîâêè
RecalRepCounter DB ?
endg
; Îáëàñòü ïàìÿòè äëÿ õðàíåíèÿ ïðî÷èòàííîãî ñåêòîðà
;FDD_DataBuffer: times 512 db 0 ;DB 512 DUP (?)
fdd_motor_status db 0
timer_fdd_motor dd 0
 
;*************************************
;* ÈÍÈÖÈÀËÈÇÀÖÈß ÐÅÆÈÌÀ ÏÄÏ ÄËß ÍÃÌÄ *
;*************************************
Init_FDC_DMA:
pushad
mov al,0
out 0x0c,al ; reset the flip-flop to a known state.
mov al,6 ; mask channel 2 so we can reprogram it.
out 0x0a,al
mov al,[dmamode] ; 0x46 -> Read from floppy - 0x4A Write to floppy
out 0x0b,al
mov al,0
out 0x0c,al ; reset the flip-flop to a known state.
mov eax,0xD000
out 0x04,al ; set the channel 2 starting address to 0
shr eax,8
out 0x04,al
shr eax,8
out 0x81,al
mov al,0
out 0x0c, al ; reset flip-flop
mov al, 0xff ;set count (actual size -1)
out 0x5, al
mov al,0x1 ;[dmasize] ;(0x1ff = 511 / 0x23ff =9215)
out 0x5,al
mov al,2
out 0xa,al
popad
ret
 
;***********************************
;* ÇÀÏÈÑÀÒÜ ÁÀÉÒ Â ÏÎÐÒ ÄÀÍÍÛÕ FDC *
;* Ïàðàìåòðû: *
;* AL - âûâîäèìûé áàéò. *
;***********************************
FDCDataOutput:
; pusha
push eax ecx edx
mov AH,AL ;çàïîìíèòü áàéò â AH
; Ñáðîñèòü ïåðåìåííóþ ñîñòîÿíèÿ êîíòðîëëåðà
mov [FDC_Status],FDC_Normal
; Ïðîâåðèòü ãîòîâíîñòü êîíòðîëëåðà ê ïðèåìó äàííûõ
mov DX,3F4h ;(ïîðò ñîñòîÿíèÿ FDC)
mov ecx, 0x10000 ;óñòàíîâèòü ñ÷åò÷èê òàéì-àóòà
@@TestRS:
in AL,DX ;ïðî÷èòàòü ðåãèñòð RS
and AL,0C0h ;âûäåëèòü ðàçðÿäû 6 è 7
cmp AL,80h ;ïðîâåðèòü ðàçðÿäû 6 è 7
je @@OutByteToFDC
loop @@TestRS
; Îøèáêà òàéì-àóòà
mov [FDC_Status],FDC_TimeOut
jmp @@End_5
; Âûâåñòè áàéò â ïîðò äàííûõ
@@OutByteToFDC:
inc DX
mov AL,AH
out DX,AL
@@End_5:
; popa
pop edx ecx eax
ret
 
;******************************************
;* ÏÐÎ×ÈÒÀÒÜ ÁÀÉÒ ÈÇ ÏÎÐÒÀ ÄÀÍÍÛÕ FDC *
;* Ïðîöåäóðà íå èìååò âõîäíûõ ïàðàìåòðîâ. *
;* Âûõîäíûå äàííûå: *
;* AL - ñ÷èòàííûé áàéò. *
;******************************************
FDCDataInput:
push ECX
push DX
; Ñáðîñèòü ïåðåìåííóþ ñîñòîÿíèÿ êîíòðîëëåðà
mov [FDC_Status],FDC_Normal
; Ïðîâåðèòü ãîòîâíîñòü êîíòðîëëåðà ê ïåðåäà÷å äàííûõ
mov DX,3F4h ;(ïîðò ñîñòîÿíèÿ FDC)
xor CX,CX ;óñòàíîâèòü ñ÷åò÷èê òàéì-àóòà
@@TestRS_1:
in AL,DX ;ïðî÷èòàòü ðåãèñòð RS
and AL,0C0h ;âûäëèòü ðàçðÿäû 6 è 7
cmp AL,0C0h ;ïðîâåðèòü ðàçðÿäû 6 è 7
je @@GetByteFromFDC
loop @@TestRS_1
; Îøèáêà òàéì-àóòà
mov [FDC_Status],FDC_TimeOut
jmp @@End_6
; Ââåñòè áàéò èç ïîðòà äàííûõ
@@GetByteFromFDC:
inc DX
in AL,DX
@@End_6: pop DX
pop ECX
ret
 
;*********************************************
;* ÎÁÐÀÁÎÒ×ÈÊ ÏÐÅÐÛÂÀÍÈß ÎÒ ÊÎÍÒÐÎËËÅÐÀ ÍÃÌÄ *
;*********************************************
FDCInterrupt:
; Óñòàíîâèòü ôëàã ïðåðûâàíè
mov [FDD_IntFlag],1
ret
 
 
;******************************************
;* ÓÑÒÀÍÎÂÈÒÜ ÍÎÂÛÉ ÎÁÐÀÁÎÒ×ÈÊ ÏÐÅÐÛÂÀÍÈÉ *
;* ÍÃÌÄ *
;******************************************
SetUserInterrupts:
mov [fdc_irq_func],FDCInterrupt
ret
 
;*******************************************
;* ÎÆÈÄÀÍÈÅ ÏÐÅÐÛÂÀÍÈß ÎÒ ÊÎÍÒÐÎËËÅÐÀ ÍÃÌÄ *
;*******************************************
WaitFDCInterrupt:
pusha
; Ñáðîñèòü áàéò ñîñòîÿíèÿ îïåðàöèè
mov [FDC_Status],FDC_Normal
; Ñáðîñèòü ôëàã ïðåðûâàíè
mov [FDD_IntFlag],0
; Îáíóëèòü ñ÷åò÷èê òèêîâ
mov eax,[timer_ticks]
mov [TickCounter],eax
; Îæèäàòü óñòàíîâêè ôëàãà ïðåðûâàíèÿ ÍÃÌÄ
@@TestRS_2:
cmp [FDD_IntFlag],0
jnz @@End_7 ;ïðåðûâàíèå ïðîèçîøëî
call change_task
mov eax,[timer_ticks]
sub eax,[TickCounter]
cmp eax,50 ;25 ;5 ;îæèäàòü 5 òèêîâ
jb @@TestRS_2
; jl @@TestRS_2
; Îøèáêà òàéì-àóòà
mov [FDC_Status],FDC_TimeOut
; mov [flp_status],0
@@End_7: popa
ret
 
;*********************************
;* ÂÊËÞ×ÈÒÜ ÌÎÒÎÐ ÄÈÑÊÎÂÎÄÀ "A:" *
;*********************************
FDDMotorON:
pusha
; cmp [fdd_motor_status],1
; je fdd_motor_on
mov al,[flp_number]
cmp [fdd_motor_status],al
je fdd_motor_on
; Ïðîèçâåñòè ñáðîñ êîíòðîëëåðà ÍÃÌÄ
mov DX,3F2h ;ïîðò óïðàâëåíèÿ äâèãàòåëÿìè
mov AL,0
out DX,AL
; Âûáðàòü è âêëþ÷èòü ìîòîð äèñêîâîäà
cmp [flp_number],1
jne FDDMotorON_B
; call FDDMotorOFF_B
mov AL,1Ch ; Floppy A
jmp FDDMotorON_1
FDDMotorON_B:
; call FDDMotorOFF_A
mov AL,2Dh ; Floppy B
FDDMotorON_1:
out DX,AL
; Îáíóëèòü ñ÷åò÷èê òèêîâ
mov eax,[timer_ticks]
mov [TickCounter],eax
; Îæèäàòü 0,5 ñ
@@dT:
call change_task
mov eax,[timer_ticks]
sub eax,[TickCounter]
cmp eax,50 ;10
jb @@dT
cmp [flp_number],1
jne fdd_motor_on_B
mov [fdd_motor_status],1
jmp fdd_motor_on
fdd_motor_on_B:
mov [fdd_motor_status],2
fdd_motor_on:
call save_timer_fdd_motor
popa
ret
 
;*****************************************
;* ÑÎÕÐÀÍÅÍÈÅ ÓÊÀÇÀÒÅËß ÂÐÅÌÅÍÈ *
;*****************************************
save_timer_fdd_motor:
mov eax,[timer_ticks]
mov [timer_fdd_motor],eax
ret
 
;*****************************************
;* ÏÐÎÂÅÐÊÀ ÇÀÄÅÐÆÊÈ ÂÛÊËÞ×ÅÍÈß ÌÎÒÎÐÀ *
;*****************************************
align 4
check_fdd_motor_status:
cmp [fdd_motor_status],0
je end_check_fdd_motor_status_1
mov eax,[timer_ticks]
sub eax,[timer_fdd_motor]
cmp eax,500
jb end_check_fdd_motor_status
call FDDMotorOFF
mov [fdd_motor_status],0
end_check_fdd_motor_status_1:
mov [flp_status],0
end_check_fdd_motor_status:
ret
 
;**********************************
;* ÂÛÊËÞ×ÈÒÜ ÌÎÒÎÐ ÄÈÑÊÎÂÎÄÀ *
;**********************************
FDDMotorOFF:
push AX
push DX
cmp [flp_number],1
jne FDDMotorOFF_1
call FDDMotorOFF_A
jmp FDDMotorOFF_2
FDDMotorOFF_1:
call FDDMotorOFF_B
FDDMotorOFF_2:
pop DX
pop AX
; ñáðîñ ôëàãîâ êåøèðîâàíèÿ â ñâÿçè ñ óñòàðåâàíèåì èíôîðìàöèè
mov [root_read],0
mov [flp_fat],0
ret
 
FDDMotorOFF_A:
mov DX,3F2h ;ïîðò óïðàâëåíèÿ äâèãàòåëÿìè
mov AL,0Ch ; Floppy A
out DX,AL
ret
 
FDDMotorOFF_B:
mov DX,3F2h ;ïîðò óïðàâëåíèÿ äâèãàòåëÿìè
mov AL,5h ; Floppy B
out DX,AL
ret
 
;*******************************
;* ÐÅÊÀËÈÁÐÎÂÊÀ ÄÈÑÊÎÂÎÄÀ "A:" *
;*******************************
RecalibrateFDD:
pusha
call save_timer_fdd_motor
; Ïîäàòü êîìàíäó "Ðåêàëèáðîâêà"
mov AL,07h
call FDCDataOutput
mov AL,00h
call FDCDataOutput
; Îæèäàòü çàâåðøåíèÿ îïåðàöèè
call WaitFDCInterrupt
; cmp [FDC_Status],0
; je no_fdc_status_error
; mov [flp_status],0
;no_fdc_status_error:
call save_timer_fdd_motor
popa
ret
 
;*****************************************************
;* ÏÎÈÑÊ ÄÎÐÎÆÊÈ *
;* Ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå ïåðåìåííûå: *
;* FDD_Track - íîìåð äîðîæêè (0-79); *
;* FDD_Head - íîìåð ãîëîâêè (0-1). *
;* Ðåçóëüòàò îïåðàöèè çàíîñèòñÿ â FDC_Status. *
;*****************************************************
SeekTrack:
pusha
call save_timer_fdd_motor
; Ïîäàòü êîìàíäó "Ïîèñê"
mov AL,0Fh
call FDCDataOutput
; Ïåðåäàòü áàéò íîìåðà ãîëîâêè/íàêîïèòåë
mov AL,[FDD_Head]
shl AL,2
call FDCDataOutput
; Ïåðåäàòü áàéò íîìåðà äîðîæêè
mov AL,[FDD_Track]
call FDCDataOutput
; Îæèäàòü çàâåðøåíèÿ îïåðàöèè
call WaitFDCInterrupt
cmp [FDC_Status],FDC_Normal
jne @@Exit
; Ñîõðàíèòü ðåçóëüòàò ïîèñêà
mov AL,08h
call FDCDataOutput
call FDCDataInput
mov [FDC_ST0],AL
call FDCDataInput
mov [FDC_C],AL
; Ïðîâåðèòü ðåçóëüòàò ïîèñêà
; Ïîèñê çàâåðøåí?
test [FDC_ST0],100000b
je @@Err
; Çàäàííûé òðåê íàéäåí?
mov AL,[FDC_C]
cmp AL,[FDD_Track]
jne @@Err
; Íîìåð ãîëîâêè ñîâïàäàåò ñ çàäàííûì?
mov AL,[FDC_ST0]
and AL,100b
shr AL,2
cmp AL,[FDD_Head]
jne @@Err
; Îïåðàöèÿ çàâåðøåíà óñïåøíî
mov [FDC_Status],FDC_Normal
jmp @@Exit
@@Err: ; Òðåê íå íàéäåí
mov [FDC_Status],FDC_TrackNotFound
; mov [flp_status],0
@@Exit:
call save_timer_fdd_motor
popa
ret
 
;*******************************************************
;* ×ÒÅÍÈÅ ÑÅÊÒÎÐÀ ÄÀÍÍÛÕ *
;* Ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå ïåðåìåííûå: *
;* FDD_Track - íîìåð äîðîæêè (0-79); *
;* FDD_Head - íîìåð ãîëîâêè (0-1); *
;* FDD_Sector - íîìåð ñåêòîðà (1-18). *
;* Ðåçóëüòàò îïåðàöèè çàíîñèòñÿ â FDC_Status. *
;*  ñëó÷àå óñïåøíîãî âûïîëíåíèÿ îïåðàöèè ÷òåíèÿ *
;* ñîäåðæèìîå ñåêòîðà áóäåò çàíåñåíî â FDD_DataBuffer. *
;*******************************************************
ReadSector:
pushad
call save_timer_fdd_motor
; Óñòàíîâèòü ñêîðîñòü ïåðåäà÷è 500 Êáàéò/ñ
mov AX,0
mov DX,03F7h
out DX,AL
; Èíèöèàëèçèðîâàòü êàíàë ïðÿìîãî äîñòóïà ê ïàìÿòè
mov [dmamode],0x46
call Init_FDC_DMA
; Ïîäàòü êîìàíäó "×òåíèå äàííûõ"
mov AL,0E6h ;÷òåíèå â ìóëüòèòðåêîâîì ðåæèìå
call FDCDataOutput
mov AL,[FDD_Head]
shl AL,2
call FDCDataOutput
mov AL,[FDD_Track]
call FDCDataOutput
mov AL,[FDD_Head]
call FDCDataOutput
mov AL,[FDD_Sector]
call FDCDataOutput
mov AL,2 ;êîä ðàçìåðà ñåêòîðà (512 áàéò)
call FDCDataOutput
mov AL,18 ;+1; 3Fh ;÷èñëî ñåêòîðîâ íà äîðîæêå
call FDCDataOutput
mov AL,1Bh ;çíà÷åíèå GPL
call FDCDataOutput
mov AL,0FFh ;çíà÷åíèå DTL
call FDCDataOutput
; Îæèäàåì ïðåðûâàíèå ïî çàâåðøåíèè îïåðàöèè
call WaitFDCInterrupt
cmp [FDC_Status],FDC_Normal
jne @@Exit_1
; Ñ÷èòûâàåì ñòàòóñ çàâåðøåíèÿ îïåðàöèè
call GetStatusInfo
test [FDC_ST0],11011000b
jnz @@Err_1
mov [FDC_Status],FDC_Normal
jmp @@Exit_1
@@Err_1: mov [FDC_Status],FDC_SectorNotFound
; mov [flp_status],0
@@Exit_1:
call save_timer_fdd_motor
popad
ret
 
;*******************************************************
;* ×ÒÅÍÈÅ ÑÅÊÒÎÐÀ (Ñ ÏÎÂÒÎÐÅÍÈÅÌ ÎÏÅÐÀÖÈÈ ÏÐÈ ÑÁÎÅ) *
;* Ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå ïåðåìåííûå: *
;* FDD_Track - íîìåð äîðîæêè (0-79); *
;* FDD_Head - íîìåð ãîëîâêè (0-1); *
;* FDD_Sector - íîìåð ñåêòîðà (1-18). *
;* Ðåçóëüòàò îïåðàöèè çàíîñèòñÿ â FDC_Status. *
;*  ñëó÷àå óñïåøíîãî âûïîëíåíèÿ îïåðàöèè ÷òåíèÿ *
;* ñîäåðæèìîå ñåêòîðà áóäåò çàíåñåíî â FDD_DataBuffer. *
;*******************************************************
ReadSectWithRetr:
pusha
; Îáíóëèòü ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ðåêàëèáðîâêè
mov [RecalRepCounter],0
@@TryAgain:
; Îáíóëèòü ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ÷òåíè
mov [ReadRepCounter],0
@@ReadSector_1:
call ReadSector
cmp [FDC_Status],0
je @@Exit_2
cmp [FDC_Status],1
je @@Err_3
; Òðîåêðàòíîå ïîâòîðåíèå ÷òåíè
inc [ReadRepCounter]
cmp [ReadRepCounter],3
jb @@ReadSector_1
; Òðîåêðàòíîå ïîâòîðåíèå ðåêàëèáðîâêè
call RecalibrateFDD
call SeekTrack
inc [RecalRepCounter]
cmp [RecalRepCounter],3
jb @@TryAgain
; mov [flp_status],0
@@Exit_2:
popa
ret
@@Err_3:
mov [flp_status],0
popa
ret
 
;*******************************************************
;* ÇÀÏÈÑÜ ÑÅÊÒÎÐÀ ÄÀÍÍÛÕ *
;* Ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå ïåðåìåííûå: *
;* FDD_Track - íîìåð äîðîæêè (0-79); *
;* FDD_Head - íîìåð ãîëîâêè (0-1); *
;* FDD_Sector - íîìåð ñåêòîðà (1-18). *
;* Ðåçóëüòàò îïåðàöèè çàíîñèòñÿ â FDC_Status. *
;*  ñëó÷àå óñïåøíîãî âûïîëíåíèÿ îïåðàöèè çàïèñè *
;* ñîäåðæèìîå FDD_DataBuffer áóäåò çàíåñåíî â ñåêòîð. *
;*******************************************************
WriteSector:
pushad
call save_timer_fdd_motor
; Óñòàíîâèòü ñêîðîñòü ïåðåäà÷è 500 Êáàéò/ñ
mov AX,0
mov DX,03F7h
out DX,AL
; Èíèöèàëèçèðîâàòü êàíàë ïðÿìîãî äîñòóïà ê ïàìÿòè
mov [dmamode],0x4A
call Init_FDC_DMA
; Ïîäàòü êîìàíäó "Çàïèñü äàííûõ"
mov AL,0xC5 ;0x45 ;çàïèñü â ìóëüòèòðåêîâîì ðåæèìå
call FDCDataOutput
mov AL,[FDD_Head]
shl AL,2
call FDCDataOutput
mov AL,[FDD_Track]
call FDCDataOutput
mov AL,[FDD_Head]
call FDCDataOutput
mov AL,[FDD_Sector]
call FDCDataOutput
mov AL,2 ;êîä ðàçìåðà ñåêòîðà (512 áàéò)
call FDCDataOutput
mov AL,18; 3Fh ;÷èñëî ñåêòîðîâ íà äîðîæêå
call FDCDataOutput
mov AL,1Bh ;çíà÷åíèå GPL
call FDCDataOutput
mov AL,0FFh ;çíà÷åíèå DTL
call FDCDataOutput
; Îæèäàåì ïðåðûâàíèå ïî çàâåðøåíèè îïåðàöèè
call WaitFDCInterrupt
cmp [FDC_Status],FDC_Normal
jne @@Exit_3
; Ñ÷èòûâàåì ñòàòóñ çàâåðøåíèÿ îïåðàöèè
call GetStatusInfo
test [FDC_ST0],11000000b ;11011000b
jnz @@Err_2
mov [FDC_Status],FDC_Normal
jmp @@Exit_3
@@Err_2: mov [FDC_Status],FDC_SectorNotFound
@@Exit_3:
call save_timer_fdd_motor
popad
ret
 
;*******************************************************
;* ÇÀÏÈÑÜ ÑÅÊÒÎÐÀ (Ñ ÏÎÂÒÎÐÅÍÈÅÌ ÎÏÅÐÀÖÈÈ ÏÐÈ ÑÁÎÅ) *
;* Ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå ïåðåìåííûå: *
;* FDD_Track - íîìåð äîðîæêè (0-79); *
;* FDD_Head - íîìåð ãîëîâêè (0-1); *
;* FDD_Sector - íîìåð ñåêòîðà (1-18). *
;* Ðåçóëüòàò îïåðàöèè çàíîñèòñÿ â FDC_Status. *
;*  ñëó÷àå óñïåøíîãî âûïîëíåíèÿ îïåðàöèè çàïèñè *
;* ñîäåðæèìîå FDD_DataBuffer áóäåò çàíåñåíî â ñåêòîð. *
;*******************************************************
WriteSectWithRetr:
pusha
; Îáíóëèòü ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ðåêàëèáðîâêè
mov [RecalRepCounter],0
@@TryAgain_1:
; Îáíóëèòü ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ÷òåíè
mov [ReadRepCounter],0
@@WriteSector_1:
call WriteSector
cmp [FDC_Status],0
je @@Exit_4
cmp [FDC_Status],1
je @@Err_4
; Òðîåêðàòíîå ïîâòîðåíèå ÷òåíè
inc [ReadRepCounter]
cmp [ReadRepCounter],3
jb @@WriteSector_1
; Òðîåêðàòíîå ïîâòîðåíèå ðåêàëèáðîâêè
call RecalibrateFDD
call SeekTrack
inc [RecalRepCounter]
cmp [RecalRepCounter],3
jb @@TryAgain_1
@@Exit_4:
popa
ret
@@Err_4:
mov [flp_status],0
popa
ret
 
;*********************************************
;* ÏÎËÓ×ÈÒÜ ÈÍÔÎÐÌÀÖÈÞ Î ÐÅÇÓËÜÒÀÒÅ ÎÏÅÐÀÖÈÈ *
;*********************************************
GetStatusInfo:
push AX
call FDCDataInput
mov [FDC_ST0],AL
call FDCDataInput
mov [FDC_ST1],AL
call FDCDataInput
mov [FDC_ST2],AL
call FDCDataInput
mov [FDC_C],AL
call FDCDataInput
mov [FDC_H],AL
call FDCDataInput
mov [FDC_R],AL
call FDCDataInput
mov [FDC_N],AL
pop AX
ret
 
Property changes:
Added: svn:keywords
+Rev
\ No newline at end of property