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  → /kernel/trunk/blkdev/flp_drv.inc @ 18

  → /kernel/trunk/blkdev/flp_drv.inc @ 19

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Regard whitespace Rev 18 → Rev 19

/kernel/trunk/blkdev/flp_drv.inc
1,36 → 1,10
;**********************************************************
; ¥¯®á।á⢥­­ ï à ¡®â  á ª®­â஫«¥à®¬ £¨¡ª®£® ¤¨áª
; Íåïîñðåäñòâåííàÿ ðàáîòà ñ êîíòðîëëåðîì ãèáêîãî äèñêà
;**********************************************************
; €¢â®à ¨á室­®£® ⥪áâ  Šã« ª®¢ ‚« ¤¨¬¨à ƒ¥­­ ¤ì¥¢¨ç.
; €¤ ¯â æ¨ï ¨ ¤®à ¡®âª  Mario79
fdd_read_and_write:
pusha
read_sector:
cmp eax,1
jne write_sector
call save_HTS_values
call flp_readsector
call give_back_application_data
jmp fdd_read_end
write_sector:
cmp eax,2
jne fdd_read_end
call save_HTS_values
call take_data_from_application
call flp_writesector
fdd_read_end:
popa
ret
; Àâòîð èñõîäíîãî òåêñòà Êóëàêîâ Âëàäèìèð Ãåííàäüåâè÷.
; Àäàïòàöèÿ è äîðàáîòêà Mario79
save_HTS_values:
mov [FDD_Sector],bl
mov [FDD_Head],bh
shr ebx,16
mov [FDD_Track],bl
mov [FDD_Type],bh
ret
give_back_application_data: ; ¯¥à¥á« âì ¯à¨«®¦¥­¨î
give_back_application_data: ; ïåðåñëàòü ïðèëîæåíèþ
mov edi,[3010h]
mov edi,[edi+10h]
add edi,ecx
42,7 → 16,7
rep movsd
ret
take_data_from_application: ; ¢§ïâì ¨§ ¯à¨«®¦¥­¨ï
take_data_from_application: ; âçÿòü èç ïðèëîæåíèÿ
mov esi,[3010h]
mov esi,[esi+10h]
add esi,ecx
54,77 → 28,36
rep movsd
ret
flp_initialization:
; “áâ ­®¢¨âì ­®¢ë© ®¡à ¡®â稪 ¯à¥à뢠­¨ï ƒŒ„
call SetUserInterrupts
; ‚ª«îç¨âì ¬®â®à ¤¨áª®¢®¤
call FDDMotorON
; ˆ­¨æ¨ «¨§¨à®¢ âì ¯¥à¥¬¥­­ë¥
; mov [FDD_Track],0
; mov [FDD_Head],0
; mov [FDD_Sector],1
; à®¢¥á⨠४ «¨¡à®¢ªã ¨ ¯®¨áª ­ã«¥¢®© ¤®à®¦ª¨
call RecalibrateFDD
call SeekTrack
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
flp_readsector:
call flp_initialization
; à®ç¨â âì ᥪâ®à
call ReadSectWithRetr
; call ReadSector
; cmp [FDC_Status],0
; jne @@SectorNotFound
mov [fdc_irq_func],fdc_null
; call FDDMotorOFF
ret
flp_writesector:
call flp_initialization
; ‡ ¯¨á âì ᥪâ®à
call WriteSectWithRetr
; call WriteSector
; cmp [FDC_Status],0
; jne @@SectorNotFound
mov [fdc_irq_func],fdc_null
; call FDDMotorOFF
ret
@@DiskNotFound:
ret
@@SectorNotFound:
ret
; Š®¤ë § ¢¥à襭¨ï ®¯¥à æ¨¨ á ª®­â஫«¥à®¬ (FDC_Status)
FDC_Normal equ 0 ;­®à¬ «ì­®¥ § ¢¥à襭¨¥
FDC_TimeOut equ 1 ;®è¨¡ª  â ©¬- ãâ
FDC_DiskNotFound equ 2 ;¢ ¤¨áª®¢®¤¥ ­¥â ¤¨áª
FDC_TrackNotFound equ 3 ;¤®à®¦ª  ­¥ ­ ©¤¥­
FDC_SectorNotFound equ 4 ;ᥪâ®à ­¥ ­ ©¤¥­
; Œ ªá¨¬ «ì­ë¥ §­ ç¥­¨ï ª®®à¤¨­ â ᥪâ®à  (§ ¤ ­­ë¥
; §­ ç¥­¨ï ᮮ⢥âáâ¢ãîâ ¯ à ¬¥âà ¬ áâ ­¤ àâ­®£®
; âà¥å¤î©¬®¢®£® £¨¡ª®£® ¤¨áª  ®¡ê¥¬®¬ 1,44 Œ¡)
; 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
; ‘ç¥â稪 ⨪®¢ â ©¬¥à
; Ñ÷åò÷èê òèêîâ òàéìåðà
TickCounter dd ?
; Š®¤ § ¢¥à襭¨ï ®¯¥à æ¨¨ á ª®­â஫«¥à®¬ ƒŒ„
; Êîä çàâåðøåíèÿ îïåðàöèè ñ êîíòðîëëåðîì ÍÃÌÄ
FDC_Status DB ?
; ”« £ ¯à¥à뢠­¨ï ®â ƒŒ„
; Ôëàã ïðåðûâàíèÿ îò ÍÃÌÄ
FDD_IntFlag DB ?
; Œ®¬¥­â ­ ç «  ¯®á«¥¤­¥© ®¯¥à æ¨¨ á ƒŒ„
; Ìîìåíò íà÷àëà ïîñëåäíåé îïåðàöèè ñ ÍÃÌÄ
FDD_Time DD ?
; ®¬¥à ¤¨áª®¢®¤
; Íîìåð äèñêîâîäà
FDD_Type db 0
; Š®®à¤¨­ âë ᥪâ®à
; Êîîðäèíàòû ñåêòîðà
FDD_Track DB ?
FDD_Head DB ?
FDD_Sector DB ?
; «®ª १ã«ìâ â  ®¯¥à æ¨¨
; Áëîê ðåçóëüòàòà îïåðàöèè
FDC_ST0 DB ?
FDC_ST1 DB ?
FDC_ST2 DB ?
132,17 → 65,17
FDC_H DB ?
FDC_R DB ?
FDC_N DB ?
; ‘ç¥â稪 ¯®¢â®à¥­¨ï ®¯¥à æ¨¨ ç⥭¨ï
; Ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ÷òåíèÿ
ReadRepCounter DB ?
; ‘ç¥â稪 ¯®¢â®à¥­¨ï ®¯¥à æ¨¨ ४ «¨¡à®¢ª¨
; Ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ðåêàëèáðîâêè
RecalRepCounter DB ?
; Ž¡« áâì ¯ ¬ï⨠¤«ï åà ­¥­¨ï ¯à®ç¨â ­­®£® ᥪâ®à
; 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
;*************************************
;* ˆˆ–ˆ€‹ˆ‡€–ˆŸ  †ˆŒ€ „ „‹Ÿ ƒŒ„ *
;* ÈÍÈÖÈÀËÈÇÀÖÈß ÐÅÆÈÌÀ ÏÄÏ ÄËß ÍÃÌÄ *
;*************************************
Init_FDC_DMA:
pushad
172,29 → 105,29
ret
;***********************************
;* ‡€ˆ‘€’œ €‰’ ‚ Ž’ „€›• FDC *
;*  à ¬¥âàë: *
;* AL - ¢ë¢®¤¨¬ë© ¡ ©â. *
;* ÇÀÏÈÑÀÒÜ ÁÀÉÒ Â ÏÎÐÒ ÄÀÍÍÛÕ FDC *
;* Ïàðàìåòðû: *
;* AL - âûâîäèìûé áàéò. *
;***********************************
FDCDataOutput:
; pusha
push ax cx dx
mov AH,AL ;§ ¯®¬­¨âì ¡ ©â ¢ AH
; ‘¡à®á¨âì ¯¥à¥¬¥­­ãî á®áâ®ï­¨ï ª®­â஫«¥à
mov AH,AL ;çàïîìíèòü áàéò â AH
; Ñáðîñèòü ïåðåìåííóþ ñîñòîÿíèÿ êîíòðîëëåðà
mov [FDC_Status],FDC_Normal
; à®¢¥à¨âì £®â®¢­®áâì ª®­â஫«¥à  ª ¯à¨¥¬ã ¤ ­­ëå
mov DX,3F4h ;(¯®àâ á®áâ®ï­¨ï FDC)
xor CX,CX ;ãáâ ­®¢¨âì áç¥â稪 â ©¬- ãâ
; Ïðîâåðèòü ãîòîâíîñòü êîíòðîëëåðà ê ïðèåìó äàííûõ
mov DX,3F4h ;(ïîðò ñîñòîÿíèÿ FDC)
xor CX,CX ;óñòàíîâèòü ñ÷åò÷èê òàéì-àóòà
@@TestRS:
in AL,DX ;¯à®ç¨â âì ॣ¨áâà RS
and AL,0C0h ;¢ë¤¥«¨âì à §àï¤ë 6 ¨ 7
cmp AL,80h ;¯à®¢¥à¨âì à §àï¤ë 6 ¨ 7
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
; Žè¨¡ª  â ©¬- ãâ
; Îøèáêà òàéì-àóòà
mov [FDC_Status],FDC_TimeOut
jmp @@End_5
; ‚뢥á⨠¡ ©â ¢ ¯®àâ ¤ ­­ëå
; Âûâåñòè áàéò â ïîðò äàííûõ
@@OutByteToFDC:
inc DX
mov AL,AH
205,29 → 138,29
ret
;******************************************
;* Ž—ˆ’€’œ €‰’ ˆ‡ Ž’€ „€›• FDC *
;* à®æ¥¤ãà  ­¥ ¨¬¥¥â ¢å®¤­ëå ¯ à ¬¥â஢. *
;* ‚ë室­ë¥ ¤ ­­ë¥: *
;* AL - áç¨â ­­ë© ¡ ©â. *
;* ÏÐÎ×ÈÒÀÒÜ ÁÀÉÒ ÈÇ ÏÎÐÒÀ ÄÀÍÍÛÕ FDC *
;* Ïðîöåäóðà íå èìååò âõîäíûõ ïàðàìåòðîâ. *
;* Âûõîäíûå äàííûå: *
;* AL - ñ÷èòàííûé áàéò. *
;******************************************
FDCDataInput:
push ECX
push DX
; ‘¡à®á¨âì ¯¥à¥¬¥­­ãî á®áâ®ï­¨ï ª®­â஫«¥à
; Ñáðîñèòü ïåðåìåííóþ ñîñòîÿíèÿ êîíòðîëëåðà
mov [FDC_Status],FDC_Normal
; à®¢¥à¨âì £®â®¢­®áâì ª®­â஫«¥à  ª ¯¥à¥¤ ç¥ ¤ ­­ëå
mov DX,3F4h ;(¯®àâ á®áâ®ï­¨ï FDC)
xor CX,CX ;ãáâ ­®¢¨âì áç¥â稪 â ©¬- ãâ
; 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 ;¯à®ç¨â âì ॣ¨áâà RS
and AL,0C0h ;¢ë¤«¨âì à §àï¤ë 6 ¨ 7
cmp AL,0C0h ;¯à®¢¥à¨âì à §àï¤ë 6 ¨ 7
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
; Žè¨¡ª  â ©¬- ãâ
; Îøèáêà òàéì-àóòà
mov [FDC_Status],FDC_TimeOut
jmp @@End_6
; ‚¢¥á⨠¡ ©â ¨§ ¯®àâ  ¤ ­­ëå
; Ââåñòè áàéò èç ïîðòà äàííûõ
@@GetByteFromFDC:
inc DX
in AL,DX
236,24 → 169,17
ret
;*********************************************
;* Ž€Ž’—ˆŠ  ›‚€ˆŸ Ž’ ŠŽ’Ž‹‹ € ƒŒ„ *
;* ÎÁÐÀÁÎÒ×ÈÊ ÏÐÅÐÛÂÀÍÈß ÎÒ ÊÎÍÒÐÎËËÅÐÀ ÍÃÌÄ *
;*********************************************
FDCInterrupt:
;  §à¥è¨âì ¯à¥à뢠­¨ï
; sti
; push AX
; “áâ ­®¢¨âì ä« £ ¯à¥à뢠­¨ï
; Óñòàíîâèòü ôëàã ïðåðûâàíèÿ
mov [FDD_IntFlag],1
; ®á« âì ª®¬ ­¤ã EOI ª®­â஫«¥àã ¯à¥à뢠­¨©
; mov AL,20h
; out 20h,AL
; pop AX
ret
;******************************************
;* “‘’€Ž‚ˆ’œ Ž‚›‰ Ž€Ž’—ˆŠ  ›‚€ˆ‰ *
;* ƒŒ„ *
;* ÓÑÒÀÍÎÂÈÒÜ ÍÎÂÛÉ ÎÁÐÀÁÎÒ×ÈÊ ÏÐÅÐÛÂÀÍÈÉ *
;* ÍÃÌÄ *
;******************************************
SetUserInterrupts:
mov [fdc_irq_func],FDCInterrupt
260,27 → 186,28
ret
;*******************************************
;* Ž†ˆ„€ˆ  ›‚€ˆŸ Ž’ ŠŽ’Ž‹‹ € ƒŒ„ *
;* ÎÆÈÄÀÍÈÅ ÏÐÅÐÛÂÀÍÈß ÎÒ ÊÎÍÒÐÎËËÅÐÀ ÍÃÌÄ *
;*******************************************
WaitFDCInterrupt:
pusha
; ‘¡à®á¨âì ¡ ©â á®áâ®ï­¨ï ®¯¥à æ¨¨
; Ñáðîñèòü áàéò ñîñòîÿíèÿ îïåðàöèè
mov [FDC_Status],FDC_Normal
; ‘¡à®á¨âì ä« £ ¯à¥à뢠­¨ï
; Ñáðîñèòü ôëàã ïðåðûâàíèÿ
mov [FDD_IntFlag],0
; Ž¡­ã«¨âì áç¥â稪 ⨪®¢
; Îáíóëèòü ñ÷åò÷èê òèêîâ
mov eax,[timer_ticks]
mov [TickCounter],eax
; Ž¦¨¤ âì ãáâ ­®¢ª¨ ä« £  ¯à¥à뢠­¨ï ƒŒ„
; Îæèäàòü óñòàíîâêè ôëàãà ïðåðûâàíèÿ ÍÃÌÄ
@@TestRS_2:
cmp [FDD_IntFlag],0
jnz @@End_7 ;¯à¥à뢠­¨¥ ¯à®¨§®è«®
jnz @@End_7 ;ïðåðûâàíèå ïðîèçîøëî
call change_task
mov eax,[timer_ticks]
sub eax,[TickCounter]
cmp eax,50 ;25 ;5 ;®¦¨¤ âì 5 ⨪®¢
cmp eax,50 ;25 ;5 ;îæèäàòü 5 òèêîâ
jb @@TestRS_2
; jl @@TestRS_2
; Žè¨¡ª  â ©¬- ãâ
; Îøèáêà òàéì-àóòà
mov [FDC_Status],FDC_TimeOut
; mov [flp_status],0
@@End_7: popa
287,7 → 214,7
ret
;*********************************
;* ‚Š‹ž—ˆ’œ ŒŽ’Ž „ˆ‘ŠŽ‚Ž„€ "A:" *
;* ÂÊËÞ×ÈÒÜ ÌÎÒÎÐ ÄÈÑÊÎÂÎÄÀ "A:" *
;*********************************
FDDMotorON:
pusha
296,11 → 223,11
mov al,[flp_number]
cmp [fdd_motor_status],al
je fdd_motor_on
; à®¨§¢¥á⨠á¡à®á ª®­â஫«¥à  ƒŒ„
mov DX,3F2h ;¯®àâ ã¯à ¢«¥­¨ï ¤¢¨£ â¥«ï¬¨
; Ïðîèçâåñòè ñáðîñ êîíòðîëëåðà ÍÃÌÄ
mov DX,3F2h ;ïîðò óïðàâëåíèÿ äâèãàòåëÿìè
mov AL,0
out DX,AL
; ‚ë¡à âì ¨ ¢ª«îç¨âì ¬®â®à ¤¨áª®¢®¤
; Âûáðàòü è âêëþ÷èòü ìîòîð äèñêîâîäà
cmp [flp_number],1
jne FDDMotorON_B
; call FDDMotorOFF_B
311,11 → 238,12
mov AL,2Dh ; Floppy B
FDDMotorON_1:
out DX,AL
; Ž¡­ã«¨âì áç¥â稪 ⨪®¢
; Îáíóëèòü ñ÷åò÷èê òèêîâ
mov eax,[timer_ticks]
mov [TickCounter],eax
; Ž¦¨¤ âì 0,5 á
; Îæèäàòü 0,5 ñ
@@dT:
call change_task
mov eax,[timer_ticks]
sub eax,[TickCounter]
cmp eax,50 ;10
332,7 → 260,7
ret
;*****************************************
;* ‘Ž•€ ˆ “Š€‡€’ ‹Ÿ ‚ Œ ˆ *
;* ÑÎÕÐÀÍÅÍÈÅ ÓÊÀÇÀÒÅËß ÂÐÅÌÅÍÈ *
;*****************************************
save_timer_fdd_motor:
mov eax,[timer_ticks]
340,11 → 268,11
ret
;*****************************************
;* Ž‚ Š€ ‡€„ †Šˆ ‚›Š‹ž— ˆŸ ŒŽ’Ž€ *
;* ÏÐÎÂÅÐÊÀ ÇÀÄÅÐÆÊÈ ÂÛÊËÞ×ÅÍÈß ÌÎÒÎÐÀ *
;*****************************************
check_fdd_motor_status:
cmp [fdd_motor_status],0
je end_check_fdd_motor_status
je end_check_fdd_motor_status_1
mov eax,[timer_ticks]
sub eax,[timer_fdd_motor]
cmp eax,500
351,11 → 279,13
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
;**********************************
;* ‚›Š‹ž—ˆ’œ ŒŽ’Ž „ˆ‘ŠŽ‚Ž„€ *
;* ÂÛÊËÞ×ÈÒÜ ÌÎÒÎÐ ÄÈÑÊÎÂÎÄÀ *
;**********************************
FDDMotorOFF:
push AX
369,35 → 299,35
FDDMotorOFF_2:
pop DX
pop AX
; á¡à®á ä« £®¢ ª¥è¨à®¢ ­¨ï ¢ á¢ï§¨ á ãáâ à¥¢ ­¨¥¬ ¨­ä®à¬ æ¨¨
; ñáðîñ ôëàãîâ êåøèðîâàíèÿ â ñâÿçè ñ óñòàðåâàíèåì èíôîðìàöèè
mov [root_read],0
mov [flp_fat],0
ret
FDDMotorOFF_A:
mov DX,3F2h ;¯®àâ ã¯à ¢«¥­¨ï ¤¢¨£ â¥«ï¬¨
mov DX,3F2h ;ïîðò óïðàâëåíèÿ äâèãàòåëÿìè
mov AL,0Ch ; Floppy A
out DX,AL
ret
FDDMotorOFF_B:
mov DX,3F2h ;¯®àâ ã¯à ¢«¥­¨ï ¤¢¨£ â¥«ï¬¨
mov DX,3F2h ;ïîðò óïðàâëåíèÿ äâèãàòåëÿìè
mov AL,5h ; Floppy B
out DX,AL
ret
;*******************************
;*  Š€‹ˆŽ‚Š€ „ˆ‘ŠŽ‚Ž„€ "A:" *
;* ÐÅÊÀËÈÁÐÎÂÊÀ ÄÈÑÊÎÂÎÄÀ "A:" *
;*******************************
RecalibrateFDD:
pusha
call save_timer_fdd_motor
; ®¤ âì ª®¬ ­¤ã "¥ª «¨¡à®¢ª "
; Ïîäàòü êîìàíäó "Ðåêàëèáðîâêà"
mov AL,07h
call FDCDataOutput
mov AL,00h
call FDCDataOutput
; Ž¦¨¤ âì § ¢¥à襭¨ï ®¯¥à æ¨¨
; Îæèäàòü çàâåðøåíèÿ îïåðàöèè
call WaitFDCInterrupt
; cmp [FDC_Status],0
; je no_fdc_status_error
408,30 → 338,30
ret
;*****************************************************
;* Žˆ‘Š „ŽŽ†Šˆ *
;*  à ¬¥âàë ¯¥à¥¤ îâáï ç¥à¥§ £«®¡ «ì­ë¥ ¯¥à¥¬¥­­ë¥: *
;* FDD_Track - ­®¬¥à ¤®à®¦ª¨ (0-79); *
;* FDD_Head - ­®¬¥à £®«®¢ª¨ (0-1). *
;* ¥§ã«ìâ â ®¯¥à æ¨¨ § ­®á¨âáï ¢ FDC_Status. *
;* 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
; ®¤ âì ª®¬ ­¤ã "®¨áª"
; Ïîäàòü êîìàíäó "Ïîèñê"
mov AL,0Fh
call FDCDataOutput
; ¥à¥¤ âì ¡ ©â ­®¬¥à  £®«®¢ª¨/­ ª®¯¨â¥«ï
; Ïåðåäàòü áàéò íîìåðà ãîëîâêè/íàêîïèòåëÿ
mov AL,[FDD_Head]
shl AL,2
call FDCDataOutput
; ¥à¥¤ âì ¡ ©â ­®¬¥à  ¤®à®¦ª¨
; Ïåðåäàòü áàéò íîìåðà äîðîæêè
mov AL,[FDD_Track]
call FDCDataOutput
; Ž¦¨¤ âì § ¢¥à襭¨ï ®¯¥à æ¨¨
; Îæèäàòü çàâåðøåíèÿ îïåðàöèè
call WaitFDCInterrupt
cmp [FDC_Status],FDC_Normal
jne @@Exit
; ‘®åà ­¨âì १ã«ìâ â ¯®¨áª
; Ñîõðàíèòü ðåçóëüòàò ïîèñêà
mov AL,08h
call FDCDataOutput
call FDCDataInput
438,24 → 368,24
mov [FDC_ST0],AL
call FDCDataInput
mov [FDC_C],AL
; à®¢¥à¨âì १ã«ìâ â ¯®¨áª
; ®¨áª § ¢¥à襭?
; Ïðîâåðèòü ðåçóëüòàò ïîèñêà
; Ïîèñê çàâåðøåí?
test [FDC_ST0],100000b
je @@Err
; ‡ ¤ ­­ë© â४ ­ ©¤¥­?
; Çàäàííûé òðåê íàéäåí?
mov AL,[FDC_C]
cmp AL,[FDD_Track]
jne @@Err
; ®¬¥à £®«®¢ª¨ ᮢ¯ ¤ ¥â á § ¤ ­­ë¬?
; Íîìåð ãîëîâêè ñîâïàäàåò ñ çàäàííûì?
mov AL,[FDC_ST0]
and AL,100b
shr AL,2
cmp AL,[FDD_Head]
jne @@Err
; Ž¯¥à æ¨ï § ¢¥à襭  ãᯥ譮
; Îïåðàöèÿ çàâåðøåíà óñïåøíî
mov [FDC_Status],FDC_Normal
jmp @@Exit
@@Err: ; ’४ ­¥ ­ ©¤¥­
@@Err: ; Òðåê íå íàéäåí
mov [FDC_Status],FDC_TrackNotFound
; mov [flp_status],0
@@Exit:
464,27 → 394,27
ret
;*******************************************************
;* —’ ˆ ‘ Š’Ž€ „€›• *
;*  à ¬¥âàë ¯¥à¥¤ îâáï ç¥à¥§ £«®¡ «ì­ë¥ ¯¥à¥¬¥­­ë¥: *
;* FDD_Track - ­®¬¥à ¤®à®¦ª¨ (0-79); *
;* FDD_Head - ­®¬¥à £®«®¢ª¨ (0-1); *
;* FDD_Sector - ­®¬¥à ᥪâ®à  (1-18). *
;* ¥§ã«ìâ â ®¯¥à æ¨¨ § ­®á¨âáï ¢ FDC_Status. *
;* ‚ á«ãç ¥ ãᯥ譮£® ¢ë¯®«­¥­¨ï ®¯¥à æ¨¨ ç⥭¨ï *
;* ᮤ¥à¦¨¬®¥ ᥪâ®à  ¡ã¤¥â § ­¥á¥­® ¢ FDD_DataBuffer. *
;* ×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
; “áâ ­®¢¨âì ᪮à®áâì ¯¥à¥¤ ç¨ 500 Š¡ ©â/á
; Óñòàíîâèòü ñêîðîñòü ïåðåäà÷è 500 Êáàéò/ñ
mov AX,0
mov DX,03F7h
out DX,AL
; ˆ­¨æ¨ «¨§¨à®¢ âì ª ­ « ¯àאַ£® ¤®áâ㯠 ª ¯ ¬ïâ¨
; Èíèöèàëèçèðîâàòü êàíàë ïðÿìîãî äîñòóïà ê ïàìÿòè
mov [dmamode],0x46
call Init_FDC_DMA
; ®¤ âì ª®¬ ­¤ã "—⥭¨¥ ¤ ­­ëå"
mov AL,0E6h ;ç⥭¨¥ ¢ ¬ã«ìâ¨â४®¢®¬ ०¨¬¥
; Ïîäàòü êîìàíäó "×òåíèå äàííûõ"
mov AL,0E6h ;÷òåíèå â ìóëüòèòðåêîâîì ðåæèìå
call FDCDataOutput
mov AL,[FDD_Head]
shl AL,2
495,20 → 425,19
call FDCDataOutput
mov AL,[FDD_Sector]
call FDCDataOutput
mov AL,2 ;ª®¤ à §¬¥à  ᥪâ®à  (512 ¡ ©â)
mov AL,2 ;êîä ðàçìåðà ñåêòîðà (512 áàéò)
call FDCDataOutput
mov AL,18 ;+1; 3Fh ;ç¨á«® ᥪâ®à®¢ ­  ¤®à®¦ª¥
mov AL,18 ;+1; 3Fh ;÷èñëî ñåêòîðîâ íà äîðîæêå
call FDCDataOutput
mov AL,1Bh ;§­ ç¥­¨¥ GPL
mov AL,1Bh ;çíà÷åíèå GPL
call FDCDataOutput
mov AL,0FFh ;§­ ç¥­¨¥ DTL
mov AL,0FFh ;çíà÷åíèå DTL
call FDCDataOutput
; Ž¦¨¤ ¥¬ ¯à¥à뢠­¨¥ ¯® § ¢¥à襭¨¨ ®¯¥à æ¨¨
; Îæèäàåì ïðåðûâàíèå ïî çàâåðøåíèè îïåðàöèè
call WaitFDCInterrupt
cmp [FDC_Status],FDC_Normal
jne @@Exit_1
; ‘ç¨â뢠¥¬ áâ âãá § ¢¥à襭¨ï ®¯¥à æ¨¨
; Ñ÷èòûâàåì ñòàòóñ çàâåðøåíèÿ îïåðàöèè
call GetStatusInfo
test [FDC_ST0],11011000b
jnz @@Err_1
522,21 → 451,21
ret
;*******************************************************
;* —’ ˆ ‘ Š’Ž€ (‘ Ž‚’Ž ˆ Œ Ž €–ˆˆ ˆ ‘Ž ) *
;*  à ¬¥âàë ¯¥à¥¤ îâáï ç¥à¥§ £«®¡ «ì­ë¥ ¯¥à¥¬¥­­ë¥: *
;* FDD_Track - ­®¬¥à ¤®à®¦ª¨ (0-79); *
;* FDD_Head - ­®¬¥à £®«®¢ª¨ (0-1); *
;* FDD_Sector - ­®¬¥à ᥪâ®à  (1-18). *
;* ¥§ã«ìâ â ®¯¥à æ¨¨ § ­®á¨âáï ¢ FDC_Status. *
;* ‚ á«ãç ¥ ãᯥ譮£® ¢ë¯®«­¥­¨ï ®¯¥à æ¨¨ ç⥭¨ï *
;* ᮤ¥à¦¨¬®¥ ᥪâ®à  ¡ã¤¥â § ­¥á¥­® ¢ FDD_DataBuffer. *
;* ×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
; Ž¡­ã«¨âì áç¥â稪 ¯®¢â®à¥­¨ï ®¯¥à æ¨¨ ४ «¨¡à®¢ª¨
; Îáíóëèòü ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ðåêàëèáðîâêè
mov [RecalRepCounter],0
@@TryAgain:
; Ž¡­ã«¨âì áç¥â稪 ¯®¢â®à¥­¨ï ®¯¥à æ¨¨ ç⥭¨ï
; Îáíóëèòü ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ÷òåíèÿ
mov [ReadRepCounter],0
@@ReadSector_1:
call ReadSector
544,11 → 473,11
je @@Exit_2
cmp [FDC_Status],1
je @@Err_3
; ’஥ªà â­®¥ ¯®¢â®à¥­¨¥ ç⥭¨ï
; Òðîåêðàòíîå ïîâòîðåíèå ÷òåíèÿ
inc [ReadRepCounter]
cmp [ReadRepCounter],3
jb @@ReadSector_1
; ’஥ªà â­®¥ ¯®¢â®à¥­¨¥ ४ «¨¡à®¢ª¨
; Òðîåêðàòíîå ïîâòîðåíèå ðåêàëèáðîâêè
call RecalibrateFDD
call SeekTrack
inc [RecalRepCounter]
564,27 → 493,27
ret
;*******************************************************
;* ‡€ˆ‘œ ‘ Š’Ž€ „€›• *
;*  à ¬¥âàë ¯¥à¥¤ îâáï ç¥à¥§ £«®¡ «ì­ë¥ ¯¥à¥¬¥­­ë¥: *
;* FDD_Track - ­®¬¥à ¤®à®¦ª¨ (0-79); *
;* FDD_Head - ­®¬¥à £®«®¢ª¨ (0-1); *
;* FDD_Sector - ­®¬¥à ᥪâ®à  (1-18). *
;* ¥§ã«ìâ â ®¯¥à æ¨¨ § ­®á¨âáï ¢ FDC_Status. *
;* ‚ á«ãç ¥ ãᯥ譮£® ¢ë¯®«­¥­¨ï ®¯¥à æ¨¨ § ¯¨á¨ *
;* ᮤ¥à¦¨¬®¥ FDD_DataBuffer ¡ã¤¥â § ­¥á¥­® ¢ ᥪâ®à. *
;* 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
; “áâ ­®¢¨âì ᪮à®áâì ¯¥à¥¤ ç¨ 500 Š¡ ©â/á
; Óñòàíîâèòü ñêîðîñòü ïåðåäà÷è 500 Êáàéò/ñ
mov AX,0
mov DX,03F7h
out DX,AL
; ˆ­¨æ¨ «¨§¨à®¢ âì ª ­ « ¯àאַ£® ¤®áâ㯠 ª ¯ ¬ïâ¨
; Èíèöèàëèçèðîâàòü êàíàë ïðÿìîãî äîñòóïà ê ïàìÿòè
mov [dmamode],0x4A
call Init_FDC_DMA
; ®¤ âì ª®¬ ­¤ã "‡ ¯¨áì ¤ ­­ëå"
mov AL,0xC5 ;0x45 ;§ ¯¨áì ¢ ¬ã«ìâ¨â४®¢®¬ ०¨¬¥
; Ïîäàòü êîìàíäó "Çàïèñü äàííûõ"
mov AL,0xC5 ;0x45 ;çàïèñü â ìóëüòèòðåêîâîì ðåæèìå
call FDCDataOutput
mov AL,[FDD_Head]
shl AL,2
595,20 → 524,19
call FDCDataOutput
mov AL,[FDD_Sector]
call FDCDataOutput
mov AL,2 ;ª®¤ à §¬¥à  ᥪâ®à  (512 ¡ ©â)
mov AL,2 ;êîä ðàçìåðà ñåêòîðà (512 áàéò)
call FDCDataOutput
mov AL,18; 3Fh ;ç¨á«® ᥪâ®à®¢ ­  ¤®à®¦ª¥
mov AL,18; 3Fh ;÷èñëî ñåêòîðîâ íà äîðîæêå
call FDCDataOutput
mov AL,1Bh ;§­ ç¥­¨¥ GPL
mov AL,1Bh ;çíà÷åíèå GPL
call FDCDataOutput
mov AL,0FFh ;§­ ç¥­¨¥ DTL
mov AL,0FFh ;çíà÷åíèå DTL
call FDCDataOutput
; Ž¦¨¤ ¥¬ ¯à¥à뢠­¨¥ ¯® § ¢¥à襭¨¨ ®¯¥à æ¨¨
; Îæèäàåì ïðåðûâàíèå ïî çàâåðøåíèè îïåðàöèè
call WaitFDCInterrupt
cmp [FDC_Status],FDC_Normal
jne @@Exit_3
; ‘ç¨â뢠¥¬ áâ âãá § ¢¥à襭¨ï ®¯¥à æ¨¨
; Ñ÷èòûâàåì ñòàòóñ çàâåðøåíèÿ îïåðàöèè
call GetStatusInfo
test [FDC_ST0],11000000b ;11011000b
jnz @@Err_2
621,21 → 549,21
ret
;*******************************************************
;* ‡€ˆ‘œ ‘ Š’Ž€ (‘ Ž‚’Ž ˆ Œ Ž €–ˆˆ ˆ ‘Ž ) *
;*  à ¬¥âàë ¯¥à¥¤ îâáï ç¥à¥§ £«®¡ «ì­ë¥ ¯¥à¥¬¥­­ë¥: *
;* FDD_Track - ­®¬¥à ¤®à®¦ª¨ (0-79); *
;* FDD_Head - ­®¬¥à £®«®¢ª¨ (0-1); *
;* FDD_Sector - ­®¬¥à ᥪâ®à  (1-18). *
;* ¥§ã«ìâ â ®¯¥à æ¨¨ § ­®á¨âáï ¢ FDC_Status. *
;* ‚ á«ãç ¥ ãᯥ譮£® ¢ë¯®«­¥­¨ï ®¯¥à æ¨¨ § ¯¨á¨ *
;* ᮤ¥à¦¨¬®¥ FDD_DataBuffer ¡ã¤¥â § ­¥á¥­® ¢ ᥪâ®à. *
;* 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
; Ž¡­ã«¨âì áç¥â稪 ¯®¢â®à¥­¨ï ®¯¥à æ¨¨ ४ «¨¡à®¢ª¨
; Îáíóëèòü ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ðåêàëèáðîâêè
mov [RecalRepCounter],0
@@TryAgain_1:
; Ž¡­ã«¨âì áç¥â稪 ¯®¢â®à¥­¨ï ®¯¥à æ¨¨ ç⥭¨ï
; Îáíóëèòü ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ÷òåíèÿ
mov [ReadRepCounter],0
@@WriteSector_1:
call WriteSector
643,11 → 571,11
je @@Exit_4
cmp [FDC_Status],1
je @@Err_4
; ’஥ªà â­®¥ ¯®¢â®à¥­¨¥ ç⥭¨ï
; Òðîåêðàòíîå ïîâòîðåíèå ÷òåíèÿ
inc [ReadRepCounter]
cmp [ReadRepCounter],3
jb @@WriteSector_1
; ’஥ªà â­®¥ ¯®¢â®à¥­¨¥ ४ «¨¡à®¢ª¨
; Òðîåêðàòíîå ïîâòîðåíèå ðåêàëèáðîâêè
call RecalibrateFDD
call SeekTrack
inc [RecalRepCounter]
662,7 → 590,7
ret
;*********************************************
;* Ž‹“—ˆ’œ ˆ”ŽŒ€–ˆž Ž  ‡“‹œ’€’ Ž €–ˆˆ *
;* ÏÎËÓ×ÈÒÜ ÈÍÔÎÐÌÀÖÈÞ Î ÐÅÇÓËÜÒÀÒÅ ÎÏÅÐÀÖÈÈ *
;*********************************************
GetStatusInfo:
push AX