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Deleted obsolete sysfunction 58.1

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git-svn-id: svn://kolibrios.org@495 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Evgeny Grechnikov (Diamond) 2007-05-15 15:08:17 +00:00
parent ba74e7f00f
commit a469f3f7e8
3 changed files with 4 additions and 1041 deletions
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451
kernel/trunk/fs/fat12.inc
View File

@ -43,33 +43,6 @@ reserve_flp:
sti
ret
floppy_free_space:
;---------------------------------------------
;
; returns free space in edi
;
;---------------------------------------------
push eax ebx ecx
call read_flp_fat
cmp [FDC_Status],0
jne fdc_status_error_2
mov eax,0x282004
xor edi,edi
mov ecx,2847 ;1448000/512
rdfs1_1:
mov ebx,[eax]
and ebx,4095
jne rdfs2_1
add edi,512
rdfs2_1:
add eax,2
loop rdfs1_1
fdc_status_error_2:
pop ecx ebx eax
ret
floppy_fileread:
;----------------------------------------------------------------
@ -506,321 +479,6 @@ restorefatchain_flp: ; restore fat chain
ret
floppy_filedelete:
;--------------------------------------------
;
; filedelete - sys floppy
; in:
; eax - filename 11 chars - for root directory
; edi pointer to path /fd/1/...... - for all files in nested directories
;
; out:
; eax - 0 = successful, 1 = file not found, 10 = access denied
;
;--------------------------------------------
mov [path_pointer_flp],edi
mov [save_flag],0
mov ebp,1 ; file not found as default
filedelete_newtry_1:
sub esp,32
call expand_filename
push eax ebx ecx edx esi edi
call read_flp_fat
cmp [FDC_Status],0
jne frnoreadd_1
mov [FDD_Track],0 ; Öèëèíäð
mov [FDD_Head],1 ; Ñòîðîíà
mov [FDD_Sector],2 ; Ñåêòîð
call SeekTrack
mov dh,14
l.20_2:
call ReadSectWithRetr
cmp [FDC_Status],0
jne fdc_status_error_4
mov dl,16
mov edi,FDD_BUFF
inc [FDD_Sector]
l.21_2:
mov esi,eax ;Name of file we want
mov ecx,11
cld
rep cmpsb ;Found the file?
je fifoundd_1 ;Yes
add ecx,21
add edi, ecx ;Advance to next entry
dec dl
jne l.21_2
dec dh
jne l.20_2
jmp frnoreadd_1
fdc_status_error_4:
pop edi esi edx ecx ebx eax
add esp,32
jmp fdc_status_error_1
fifoundd_1:
mov eax,[path_pointer_flp]
cmp [eax+36],byte 0
je fifoundd_2
movzx eax, word [edi+0xf]
mov ebx,[path_pointer_flp]
add ebx,36
call get_cluster_of_a_path_flp
jc frnoreadd_1_1
mov edi,ebx
add edi,11
jmp fifoundd_2_1
fifoundd_2:
dec [FDD_Sector]
fifoundd_2_1:
mov [edi-11],byte 0xE5 ;mark filename deleted
movzx edi, word [edi+0xf] ;edi = cluster
frnewd_1:
shl edi,1 ;find next cluster from FAT
add edi,FLOPPY_FAT
mov eax,[edi]
mov [edi],word 0x0 ;clear fat chain cluster
and eax,4095
mov edi,eax
cmp edi,dword 4095 ;last cluster ?
jz frnoreadd2_1
jmp frnewd_1
frnoreadd2_1:
call WriteSectWithRetr
cmp [FDC_Status],0
jne fdc_status_error_4
call save_flp_fat
cmp [FDC_Status],0
jne fdc_status_error_4
; pop edi esi edx ecx ebx eax
; add esp,32
mov ebp,0 ; file found
; jmp filedelete_newtry_1
jmp frnoreadd_1
frnoreadd_1_1:
cmp [FDC_Status],0
jne fdc_status_error_4
frnoreadd_1:
pop edi esi edx ecx ebx eax
add esp,32
mov eax,ebp
ret
floppy_filesave:
;----------------------------------------------------------
;
; filesave - sys floppy
;
; eax ; pointer to file name 11 chars - for root directory
; ebx ; buffer
; ecx ; count to write in bytes
; edx ; 0 create new , 1 append
; edi pointer to path /fd/1/...... - for all files in nested directories
;
; output : eax = 0 - ok
; 5 - file not found / directory not found
; 8 - disk full
; 10 - access denied
;-----------------------------------------------------------
mov [path_pointer_flp],edi
sub esp,32
call expand_filename
cmp edx,0
jnz fsdel_1
pusha
call floppy_filedelete
cmp [FDC_Status],0
jne fdc_status_error_6
popa
mov [save_flag],1
fsdel_1:
call floppy_free_space
cmp [FDC_Status],0
jne fdc_status_error_6
cmp ecx,edi
jb rd_do_save_1
add esp,32
mov eax,8 ; not enough free space
mov [flp_status],0
ret
fdc_status_error_6:
popa
add esp,32
jmp fdc_status_error_1
rd_do_save_1:
push eax ebx ecx edx esi edi
call read_flp_fat
cmp [FDC_Status],0
jne fdc_status_error_7
push eax
mov eax,[path_pointer_flp]
cmp [eax+36],byte 0
jne fifoundds_2
pop eax
mov [save_root_flag],1
call read_flp_root
cmp [FDC_Status],0
jne fdc_status_error_7
mov edi,FLOPPY_BUFF ;Point at directory
mov edx,224 +1
; find an empty spot for filename in the root dir
l20ds_1:
sub edx,1
jz frnoreadds_1
l21ds_1:
cmp [edi],byte 0xE5
jz fifoundds_1
cmp [edi],byte 0x0
jz fifoundds_1
add edi,32 ; Advance to next entry
jmp l20ds_1
fifoundds_2:
pop eax
mov [save_root_flag],0
mov [FDD_Track],0 ; Öèëèíäð
mov [FDD_Head],1 ; Ñòîðîíà
mov [FDD_Sector],2 ; Ñåêòîð
call SeekTrack
mov dh,14
l.20_3:
call ReadSectWithRetr
cmp [FDC_Status],0
jne fdc_status_error_7
mov dl,16
mov edi,FDD_BUFF
inc [FDD_Sector]
l.21_3:
mov esi,eax ;Name of file we want
mov ecx,11
cld
rep cmpsb ;Found the file?
je fifoundds_3 ;Yes
add ecx,21
add edi, ecx ;Advance to next entry
dec dl
jne l.21_3
dec dh
jne l.20_3
fdc_status_error_8:
pop edi esi edx ecx ebx eax
mov eax,5 ; file not found ?
mov ebx,-1
add esp,32
mov [flp_status],0
ret
fifoundds_3:
add edi,0xf
mov eax,[edi]
and eax,65535
mov ebx,[path_pointer_flp]
add ebx,36
call get_cluster_of_a_path_flp
jc fdc_status_error_7_1
found_directory_for_writing_flp:
call analyze_directory_to_write_flp
jc fdc_status_error_7_1
mov edi,ebx
fifoundds_1:
push edi ; move the filename to root dir
mov esi,[esp+4+20]
cmp [save_root_flag],0
jne fifoundds_4
mov esi,[pointer_file_name_flp]
fifoundds_4:
mov ecx,11
cld
rep movsb
pop edi
mov edx,edi
add edx,11+0xf ; edx <- cluster save position
mov ebx,[esp+12] ; save file size
mov [edi+28],ebx
mov [edi+11],byte 0x20 ; attribute
call get_date_for_file ; from FAT32.INC
mov [edi+24],ax ; date
mov [edi+18],ax ; date
call get_time_for_file ; from FAT32.INC
mov [edi+22],ax ; time
xor ax,ax
mov [edi+20],ax
mov ebx,1 ; first cluster
cmp [save_root_flag],0
jne frnewds_1
call frnewds_2
pusha
call WriteSectWithRetr
popa
cmp [FDC_Status],0
jne fdc_status_error_7
jmp frnewds_3
frnewds_1:
call frnewds_2
frnewds_3:
pusha ; move save to floppy cluster
add ebx,31
mov eax,ebx
mov esi,[esp+32+16]
call take_data_from_application_1
call save_chs_sector
cmp [FDC_Status],0
jne fdc_status_error_7
popa
mov eax,[esp+12]
cmp eax,512
jb flnsa_1
sub eax,512
mov [esp+12],eax
mov eax,[esp+16]
add eax,512
mov [esp+16],eax
jmp frnewds_1
frnewds_2:
add ebx,1
mov edi,ebx ; find free cluster in FAT
shl edi,1
add edi,FLOPPY_FAT
mov eax,[edi]
and eax,4095
jnz frnewds_2
mov [edx],bx ; save next cluster pos. to prev cl.
mov edx,edi ; next save pos abs mem add
ret
flnsa_1:
mov [edi],word 4095 ; mark end of file - last cluster
cmp [save_root_flag],1
jne flnsa_2
call save_flp_root
cmp [FDC_Status],0
jne fdc_status_error_7
flnsa_2:
call save_flp_fat
cmp [FDC_Status],0
jne fdc_status_error_7
frnoreadds_1:
pop edi esi edx ecx ebx eax
add esp,32
mov eax,0
mov [flp_status],0
ret
fdc_status_error_7_1:
cmp [FDC_Status],0
je fdc_status_error_8
fdc_status_error_7:
pop edi esi edx ecx ebx eax
add esp,32
jmp fdc_status_error_1
save_chs_sector:
call calculate_chs
call WriteSectWithRetr
@ -965,115 +623,6 @@ found_file_analyze_flp:
ret
analyze_directory_to_write_flp:
;--------------------------------
; input : EAX = first cluster of the directory
; output : IF CARRY=0 EAX = sector where the file is found
; EBX = pointer in buffer
; [buffer .. buffer+511]
; ECX,EDX,EDI,EDI not changed
; IF CARRY=1
;--------------------------------
push ecx
push edx
push esi
adr561:
mov [clust_tmp_flp],eax
add eax,31
pusha
call read_chs_sector
popa
cmp [FDC_Status],0
jne error_found_file_analyze1
mov ecx,512/32
mov ebx,FDD_BUFF
adr1_analyze1:
cmp byte [ebx],0x00
je found_file_analyze1
cmp byte [ebx],0xe5
je found_file_analyze1
avanti:
add ebx,32
loop adr1_analyze1
mov eax,[clust_tmp_flp]
shl eax,1 ;find next cluster from FAT
add eax,FLOPPY_FAT
mov eax,[eax]
and eax,4095
cmp eax,0x0ff8
jb adr561
call get_free_FAT ;this block of code add a new cluster
;for the directory because the directory
;is full
mov [edi],word 0x0fff
mov eax,[clust_tmp_flp]
shl eax,1 ;find next cluster from FAT
add eax,FLOPPY_FAT
sub edi,FLOPPY_FAT
mov [eax],di
pusha
mov ecx,512/4
xor eax,eax
mov edi,FDD_BUFF
cld
rep stosd
popa
mov eax,edi
add eax,31
pusha
call save_chs_sector
popa
cmp [FDC_Status],0
jne error_found_file_analyze1
mov ebx,FDD_BUFF
found_file_analyze1:
pop esi
pop edx
pop ecx
clc ;file found
ret
error_found_file_analyze1:
pop esi
pop edx
pop ecx
stc
ret
get_free_FAT_flp:
;------------------------------------------
; input : EAX = # cluster for start the searching
; output : EAX = # first cluster found free
;-------------------------------------------
push ebx
mov ebx,1
check_new_flp:
add ebx,1
mov edi,ebx ; find free cluster in FAT
shl edi,1
add edi,FLOPPY_FAT
mov eax,[edi]
and eax,4095
cmp eax,0x0
jnz check_new_flp
pop ebx
ret
; \begin{diamond}
fat_find_lfn:
; in: esi->name

526
kernel/trunk/fs/fat32.inc
View File

@ -1,5 +1,5 @@
$Revision$
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
@ -69,7 +69,6 @@ PUSHAD_EDI equ [esp+0]
uglobal
align 4
cluster dd 0 ; used by file_write,makedir,append
partition_count dd 0 ; partitions found by set_FAT32_variables
longname_sec1 dd 0 ; used by analyze_directory to save 2 previous
longname_sec2 dd 0 ; directory sectors for delete long filename
@ -83,13 +82,6 @@ cluster_tmp dd 0 ; used by analyze_directory
file_size dd 0 ; used by file_read
sector_tmp dd 0 ; used by rename,append,file_write
entry_pos dd 0 ; used by rename,append,file_write
old_filesize dd 0 ; used by append
new_filepos dd 0 ; used by append
bytes2write dd 0 ; used by append
cache_search_start dd 0 ; used by find_empty_slot
endg
@ -106,13 +98,8 @@ fat_cache: times 512 db 0
endg
uglobal
dir_entry: times 32 db 0
startpath: times 255 db 0
fat16_root db 0 ; flag for fat16 rootdir
fat_change db 0 ; 1=fat has changed
endg
reserve_hd1:
@ -470,131 +457,6 @@ analyze_directory:
ret
analyze_directory_to_write:
;-----------------------------------------------------------
; input : EAX = first cluster of the directory
; output : IF CARRY=0 EAX = sector where the empty pos is found
; EBX = pointer in buffer
; [buffer .. buffer+511]
; ECX,EDX,ESI,EDI not changed
; IF CARRY=1 disk full or fat corrupted
; Note : if cluster=0 it's changed to read rootdir
;-----------------------------------------------------------
push ecx edx edi
adw_new_cluster:
mov [cluster_tmp],eax
mov [fat16_root],0
cmp eax,[LAST_CLUSTER]
ja adw_not_found ; too big cluster number, something is wrong
cmp eax,2
jnb adw_data_cluster
mov eax,[ROOT_CLUSTER] ; if cluster < 2 then read rootdir
cmp [fs_type],16
jne adw_data_cluster
mov eax,[ROOT_START]
mov edx,[ROOT_SECTORS]
mov [fat16_root],1 ; flag for fat16 rootdir
jmp adw_new_sector
adw_data_cluster:
sub eax,2
mov edx,[SECTORS_PER_CLUSTER]
imul eax,edx
add eax,[DATA_START]
adw_new_sector:
mov ebx,buffer
call hd_read
cmp [hd_error],0
jne adw_not_found
mov ecx,512/32 ; count of dir entrys per sector = 16
adw_analyze:
cmp byte [ebx],0x00 ; is free entry?
je adw_found ; yes
cmp byte [ebx],0xe5 ; is deleted entry?
je adw_found ; yes
add ebx,32 ; position of next dir entry
dec ecx
jnz adw_analyze
inc eax ; next sector
dec edx
jne adw_new_sector
cmp [fat16_root],1 ; end of fat16 rootdir
je adw_not_found
mov eax,[cluster_tmp]
call get_FAT ; get next cluster
cmp [hd_error],0
jne adw_not_found
cmp eax,2 ; incorrect fat chain?
jb adw_not_found ; yes
cmp eax,[fatRESERVED] ; is it end of directory?
jb adw_new_cluster ; no. analyse it
mov eax,2 ; this block of code add a new cluster
call get_free_FAT ; for the directory because the directory
jc adw_not_found ; is full
mov edx,[fatEND] ; new end for directory
call set_FAT
cmp [hd_error],0
jne adw_not_found
push eax ; save new cluster
mov edx,eax
mov eax,[cluster_tmp] ; change last cluster to point new cluster
call set_FAT
cmp [hd_error],0
jne adw_not_found_1
mov ecx,-1 ; remove 1 cluster from free disk space
call add_disk_free_space
cmp [hd_error],0
jne adw_not_found_1
mov ecx,512/4
xor eax,eax
mov edi,buffer
cld
rep stosd ; clear new directory cluster
pop eax
sub eax,2
mov ecx,[SECTORS_PER_CLUSTER]
imul eax,ecx
add eax,[DATA_START]
mov ebx,buffer
push eax ; save sector number
adw_set_empty_directory:
call hd_write
cmp [hd_error],0
jne adw_not_found_1
inc eax ; next sector
dec ecx
jnz adw_set_empty_directory
pop eax
adw_found:
pop edi edx ecx
clc ; free space found
ret
adw_not_found_1:
add esp,4
adw_not_found:
pop edi edx ecx
stc ; free space not found
ret
get_data_cluster:
;-----------------------------------------------------------
; input : EAX = cluster
@ -660,43 +522,6 @@ get_data_cluster:
ret
set_data_cluster:
;-----------------------------------------------------------
; input : EAX = cluster
; EBX = pointer to buffer
; output : if CARRY=0 ok
; if CARRY=1 cluster out of range
;-----------------------------------------------------------
push eax ebx edx
cmp eax,[LAST_CLUSTER]
ja sdc_error ; too big cluster number, something is wrong
sub eax,2
jb sdc_error ; don't allow rootdir write
mov edx,[SECTORS_PER_CLUSTER]
imul eax,edx
add eax,[DATA_START]
sdc_write:
call hd_write
cmp [hd_error],0
jne sdc_error
add ebx,512 ; update pointer
inc eax
dec edx
jnz sdc_write
pop edx ebx eax
clc
ret
sdc_error:
pop edx ebx eax
stc
ret
get_cluster_of_a_path:
;---------------------------------------------------------
; input : EBX = pointer to a path string
@ -855,191 +680,6 @@ add_disk_free_space:
ret
file_write:
;--------------------------------------------------------------------------
; INPUT : user-reg register-in-this meaning symbol-in-this-routine
;
; EAX EDI system call to write /
; EBX EAX (PAR0) pointer to file-name PAR0
; EDX ECX (PAR1) pointer to buffer PAR1
; ECX EBX (PAR2) file size PAR2
; ESI EDX (PAR3) pointer to path PAR3
;
; output : eax = 0 - ok
; 3 - unknown FS
; 5 - file not found
; 8 - disk full
; 10 - access denied
;--------------------------------------------------------------------------
cmp [fs_type], 16
jz fat_ok_for_writing
cmp [fs_type], 32
jz fat_ok_for_writing
push ERROR_UNKNOWN_FS
pop eax
ret
fat_ok_for_writing:
; call reserve_hd1
pushad
xor edi,edi ; don't allow directory remove
call file_delete ; try to delete the file first
cmp [hd_error],0
jne exit_write_access_1
test eax,eax
jz old_deleted ; deleted ok
cmp eax,ERROR_FILE_NOT_FOUND
jnz exit_write_access ; it exist but can't delete
old_deleted:
mov ebx,PUSHAD_EDX
call get_cluster_of_a_path
jnc found_directory_for_writing
cmp [hd_error],0
jne exit_write_access
exit_writing_with_error:
popad
call update_disk ; write all of cache and fat to hd
cmp [hd_error],0
jne exit_write_access_2
mov [hd1_status],0
mov eax,ERROR_FILE_NOT_FOUND
ret
exit_writing_disk_full_clear:
cmp [hd_error],0
jne exit_write_access_1
mov eax,[sector_tmp]
mov ebx,buffer
call hd_read ; read directory sector
cmp [hd_error],0
jne exit_write_access_1
mov edx,[entry_pos]
mov byte [edx],0xe5 ; mark as deleted
call hd_write
cmp [hd_error],0
jne exit_write_access_1
mov eax,[edx+20-2] ; FAT entry
mov ax,[edx+26]
and eax,[fatMASK]
call clear_cluster_chain
exit_writing_disk_full:
cmp [hd_error],0
jne exit_write_access_1
popad
call update_disk ; write all of cache and fat to hd
cmp [hd_error],0
jne exit_write_access_2
mov [hd1_status],0
mov eax,ERROR_DISK_FULL
ret
exit_write_access:
popad
call update_disk ; write all of cache and fat to hd
mov [hd1_status],0
mov eax,ERROR_ACCESS_DENIED
ret
exit_write_access_1:
popad
exit_write_access_2:
mov [hd1_status],0
mov eax,ERROR_ACCESS_DENIED
ret
found_directory_for_writing:
call analyze_directory_to_write
jc exit_writing_disk_full
mov [sector_tmp],eax
mov [entry_pos],ebx
push eax ; save directory sector
mov eax,2
call get_free_FAT
mov [cluster],eax ; first free cluster
pop eax
jc exit_writing_disk_full
mov esi,PUSHAD_EAX ; file name
mov edi,ebx ; pointer in buffer
mov ecx,11
cld
rep movsb
mov esi,PUSHAD_EBX ; file size (bytes left)
mov [ebx+28],esi ; file size
mov ecx,[cluster]
mov [ebx+26],cx ; 16 bits low of cluster
shr ecx,16
mov [ebx+20],cx ; 16 bits high of cluster (=0 fat16)
mov byte [ebx+11],0x20 ; attribute = archive
call set_current_time_for_entry
mov ebx,buffer ; save the directory name,length,cluster
call hd_write
cmp [hd_error],0
jne exit_write_access_1
imul edi,[SECTORS_PER_CLUSTER],512 ; edi = cluster size in bytes
xor ecx,ecx ; cluster count
mov ebx,PUSHAD_ECX ; ebx = buffer
hd_new_block_write:
mov eax,[cluster] ; eax = block
call set_data_cluster
cmp [hd_error],0
jne exit_write_access_1
sub esi,edi ; sub wrote bytes
jbe file_saved_OK ; end if all done
add ebx,edi ; update buffer position
inc eax
call get_free_FAT ; next free in FAT
jc exit_writing_disk_full_clear
mov edx,eax
xchg eax,[cluster] ; get old cluster and save new cluster
call set_FAT ; add it in cluster chain
cmp [hd_error],0
jne exit_write_access_1
dec ecx ; update cluster count
jmp hd_new_block_write
file_saved_OK:
mov edx,[fatEND] ; new end for cluster chain
call set_FAT
cmp [hd_error],0
jne exit_write_access_1
dec ecx ; update cluster count
call add_disk_free_space ; remove clusters from free disk space
cmp [hd_error],0
jne exit_write_access_1
popad
call update_disk ; write all of cache and fat to hd
cmp [hd_error],0
jne exit_write_access_2
mov [hd1_status],0
xor eax,eax
ret
file_read:
;--------------------------------------------------------------------------
; INPUT : user-register register-in-this meaning symbol-in-this
@ -1209,67 +849,6 @@ get_dir_size:
ret
file_delete:
;-----------------------------------------------------
; input : eax = file/directory name
; edx = path
; edi = 1 - allow directory remove else don't remove directory
; output : eax = 0 - ok
; 3 - unknown FS
; 5 - file not found
; 10 - access denied
;-----------------------------------------------------
cmp [fs_type], 16
jz file_del_fat_ok
cmp [fs_type], 32
jz file_del_fat_ok
push ERROR_UNKNOWN_FS
pop eax
ret
file_del_fat_ok:
pushad
mov ebx,edx
call get_cluster_of_a_path
jc file_to_delete_not_found
mov ebx,PUSHAD_EAX ; file/directory name
call analyze_directory
jc file_to_delete_not_found
test byte [ebx+11],0x10 ; is it directory?
jnz delete_no_access
delete_notdir:
call delete_entry_name
cmp [hd_error],0
jne delete_no_access
mov eax,ecx ; first cluster of file
call clear_cluster_chain
cmp [hd_error],0
jne delete_no_access
popad
xor eax,eax
ret
delete_no_access_1:
add esp,4
delete_no_access:
popad
mov eax,ERROR_ACCESS_DENIED
ret
file_to_delete_not_found:
cmp [hd_error],0
jne delete_no_access
popad
mov eax,ERROR_FILE_NOT_FOUND
ret
clear_cluster_chain:
;-----------------------------------------------------
; input : eax = first cluster
@ -1301,60 +880,6 @@ clear_cluster_chain:
ret
delete_entry_name:
;-----------------------------------------------------
; input : eax = directory sector
; ebx = directory pointer in buffer
; longname_sec = 2 previous directory sectors
; output : ecx = first cluster
; change : eax,ebx,edx
;-----------------------------------------------------
mov byte [ebx],0xe5
mov ecx,[ebx+20-2] ; first cluster of file
mov cx,[ebx+26] ; 0 length files start cluster = 0
and ecx,[fatMASK]
delete_empty:
sub ebx,32
cmp ebx,buffer
jnb delete_test_long
mov ebx,buffer
call hd_write ; write directory sector back
cmp [hd_error],0
jne delete_name_end
xor eax,eax
xchg eax,[longname_sec2]
xchg eax,[longname_sec1]
test eax,eax ; is there previous directory sector?
jz delete_name_end ; no
mov ebx,buffer
call hd_read ; read previous sector
cmp [hd_error],0
jne delete_name_end
mov ebx,buffer+0x1e0 ; start from last entry
delete_test_long:
mov dh,[ebx+11] ; file attribute
and dh,0xf
cmp dh,0xf
jne delete_write_buffer
cmp byte [ebx],0x40 ; end of long dir entry?
mov byte [ebx],0xe5
jb delete_empty
delete_write_buffer:
mov ebx,buffer
call hd_write ; write directory sector back
delete_name_end:
ret
get_hd_info:
;-----------------------------------------------------------
; output : eax = 0 - ok
@ -1428,55 +953,6 @@ update_disk:
update_disk_acces_denied:
ret
read_hd_file:
;-----------------------------------------------------------------
;
; Converting old reading function for hd-application start.
;
; IN:
;
; eax - pointer to file (0 = read only first sector of drive: eg 'label')
; ebx - file lenght
; ecx - start 512 byte block number
; edx - number of blocks to read
; esi - pointer to return/work area (atleast 20 000 bytes)
;
; For new read function
;
; EAX (PAR0) pointer to file-name
; ECX (PAR1) pointer to buffer
; EBX (PAR2) vt file blocks to read
; EDX (PAR3) pointer to path
; ESI vt first 512 block to read
; EDI if 0 - return root
;--------------------------------------------------------------------------
push ecx esi edi
mov esi,eax
mov edi,startpath
mov ecx,250
cld
rep movsb
pop edi esi ecx
mov eax,startpath
mov [eax+ebx-12],byte 0
push eax ebx ecx edx esi
pop ecx ; pointer to buffer
add ecx,1024
pop ebx ; number of blocks to read
pop esi ; first block to read
dec esi
pop eax ; file length
pop edx ; pointer to path
mov edi,12
lea eax,[eax+edx-12+1]
call file_read
ret
; \begin{diamond}
hd_find_lfn:

62
kernel/trunk/fs/fs.inc
View File

@ -41,7 +41,6 @@ file_system:
; IN:
;
; eax = 0 ; read file /RamDisk/First 6
; eax = 1 ; write file /RamDisk/First 33 /HardDisk/First 56
; eax = 8 ; lba read
; eax = 15 ; get_disk_info
;
@ -263,22 +262,6 @@ endg
fs_noramdisk_read:
cmp dword [esp+20],1 ; WRITE
jne fs_noramdisk_write
mov eax,[esp+4] ; fname
add eax,2*12+1
mov ebx,[esp+8] ; buffer
mov ecx,[esp+12] ; count to write
mov edx,0 ; create new
call filesave
; eax=0 ok - eax=1 not enough free space
jmp file_system_return
fs_noramdisk_write:
fs_noramdisk:
;********************************************************************
@ -329,23 +312,6 @@ endg
fs_noflpdisk_read:
cmp dword [esp+20],1 ; WRITE
jne fs_noflpdisk_write
mov eax,[esp+4] ; fname
add eax,2*12+1
mov ebx,[esp+8] ; buffer
mov ecx,[esp+12] ; count to write
mov edx,0 ; create new
call floppy_filesave
; eax=0 ok - eax=1 not enough free space
jmp file_system_return
fs_noflpdisk_write:
fs_noflpdisk:
;*****************************************************************
@ -476,34 +442,6 @@ hd_err_return:
fs_noharddisk_read:
cmp dword [esp+20],1 ; WRITE
jne fs_noharddisk_write
mov eax,[esp+0] ; /fname
mov byte [eax],0 ; path to asciiz
inc eax ; filename start
mov ebx,[esp+12] ; count to write
mov ecx,[esp+8] ; buffer
mov edx,[esp+4]
add edx,12*2 ; path start
call file_write
mov edi,[esp+0]
mov byte [edi],'/'
; eax=0 ok - eax=1 not enough free space
call free_hd_channel
and [hd1_status], 0
jmp file_system_return
fs_noharddisk_write:
call free_hd_channel
and [hd1_status], 0