kolibrios/kernel/branches/kolibri_pe/detect/sear_par.inc

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;;                                                              ;;
;; Copyright (C) KolibriOS team 2004-2008. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License    ;;
;;                                                              ;;
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$Revision$


;****************************************************
;     <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> HDD
;     <EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;     <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Mario79
;****************************************************
      mov   [transfer_adress],DRIVE_DATA+0xa
 search_partitions_ide0:
      test  [DRIVE_DATA+1],byte 0x40
      jz   search_partitions_ide1
        mov   [hdbase],0x1f0
        mov   [hdid],0x0
        mov   [hdpos],1
      mov  [fat32part],1
 search_partitions_ide0_1:
      call  set_FAT32_variables

      cmp   [problem_partition],0
      jne   search_partitions_ide1
      inc   byte [DRIVE_DATA+2]
      call  partition_data_transfer
      add   [transfer_adress],100
      inc   [fat32part]
      jmp   search_partitions_ide0_1

 search_partitions_ide1:
      test  [DRIVE_DATA+1],byte 0x10
      jz   search_partitions_ide2
        mov   [hdbase],0x1f0
        mov   [hdid],0x10
        mov   [hdpos],2
      mov  [fat32part],1
 search_partitions_ide1_1:
      call  set_FAT32_variables
      cmp   [problem_partition],0
      jne   search_partitions_ide2
      inc   byte [DRIVE_DATA+3]
      call  partition_data_transfer
      add   [transfer_adress],100
      inc   [fat32part]
      jmp   search_partitions_ide1_1

 search_partitions_ide2:
      test  [DRIVE_DATA+1],byte 0x4
      jz   search_partitions_ide3
        mov   [hdbase],0x170
        mov   [hdid],0x0
        mov   [hdpos],3
      mov  [fat32part],1
 search_partitions_ide2_1:
      call  set_FAT32_variables
      cmp   [problem_partition],0
      jne   search_partitions_ide3
      inc   byte [DRIVE_DATA+4]
      call  partition_data_transfer
      add   [transfer_adress],100
      inc   [fat32part]
      jmp   search_partitions_ide2_1

 search_partitions_ide3:
      test  [DRIVE_DATA+1],byte 0x1
      jz   end_search_partitions_ide
        mov   [hdbase],0x170
        mov   [hdid],0x10
        mov   [hdpos],4
      mov  [fat32part],1
 search_partitions_ide3_1:
      call  set_FAT32_variables
      cmp   [problem_partition],0
      jne   end_search_partitions_ide
      inc   byte [DRIVE_DATA+5]
      call  partition_data_transfer
      add   [transfer_adress],100
      inc   [fat32part]
      jmp   search_partitions_ide3_1

end_search_partitions_ide:
        mov     [hdpos], 80h
        mov     ecx, [NumBiosDisks]
        test    ecx, ecx
        jz      end_search_partitions
start_search_partitions_bd:
        push    ecx
        mov     eax, [hdpos]
        and     [BiosDiskPartitions+(eax-80h)*4], 0
        mov     [fat32part], 1
search_partitions_bd:
        call    set_FAT32_variables
        cmp     [problem_partition], 0
        jne     end_search_partitions_bd
        mov     eax, [hdpos]
        inc     [BiosDiskPartitions+(eax-80h)*4]
        call    partition_data_transfer
        add     [transfer_adress], 100
        inc     [fat32part]
        jmp     search_partitions_bd
end_search_partitions_bd:
        pop     ecx
        inc     [hdpos]
        loop    start_search_partitions_bd
        jmp     end_search_partitions

partition_data_transfer:
     mov edi,[transfer_adress]
     mov esi,PARTITION_START
     mov ecx,(file_system_data_size+3)/4
     rep movsd
     ret
uglobal
transfer_adress dd 0
endg
partition_data_transfer_1:
;     cli
     push edi
     mov edi,PARTITION_START
     mov esi,[transfer_adress]
     mov ecx,(file_system_data_size+3)/4
     rep movsd
     pop  edi
;     sti
     ret

 end_search_partitions:

;PARTITION_START      dd 0x3f
;PARTITION_END        dd 0
;SECTORS_PER_FAT      dd 0x1f3a
;NUMBER_OF_FATS       dd 0x2
;SECTORS_PER_CLUSTER  dd 0x8
;BYTES_PER_SECTOR     dd 0x200   ; Note: if BPS <> 512 need lots of changes
;ROOT_CLUSTER         dd 2       ; first rootdir cluster
;FAT_START            dd 0       ; start of fat table
;ROOT_START           dd 0       ; start of rootdir (only fat16)
;ROOT_SECTORS         dd 0       ; count of rootdir sectors (only fat16)
;DATA_START           dd 0       ; start of data area (=first cluster 2)
;LAST_CLUSTER         dd 0       ; last availabe cluster
;ADR_FSINFO           dd 0       ; used only by fat32
;
;fatRESERVED          dd 0x0FFFFFF6
;fatBAD               dd 0x0FFFFFF7
;fatEND               dd 0x0FFFFFF8
;fatMASK              dd 0x0FFFFFFF
;
;fat_type             db 0       ; 0=none, 16=fat16, 32=fat32