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Rev 3711 Rev 3742
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;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;;
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;; Copyright (C) KolibriOS team 2004-2013. 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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$Revision: 3711 $
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;****************************************************
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;     поиск логических дисков на обнаруженных HDD
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13 
;     и занесение данных в область таблицы
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14 
;     автор Mario79
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;****************************************************
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$Revision: 3742 $
16 
        mov     [transfer_adress], DRIVE_DATA+0xa
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17 
 search_partitions_ide0:
 - 
 
18 
        test    [DRIVE_DATA+1], byte 0x40
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search_partitions:
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        jz      search_partitions_ide1
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; 1. Fill missing parameters in HD_DATA structures.
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        mov     eax, [hd_address_table]
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        mov     eax, [hd_address_table]
- 
 
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        mov     [hd0_data.hdbase], eax   ;0x1f0
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        mov     [hdbase], eax   ;0x1f0
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        mov     [hd1_data.hdbase], eax
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        mov     [hdid], 0x0
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        mov     eax, [hd_address_table+16]
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        mov     [hdpos], 1
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        mov     [hd2_data.hdbase], eax
- 
 
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        mov     [hd3_data.hdbase], eax
- 
 
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; 2. Notify the system about /hd* disks.
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        mov     [known_part], 1
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; For every existing disk, call ide_disk_add with correct parameters.
25 
 search_partitions_ide0_1:
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; Generate name "hdN" on the stack; this is 4 bytes including terminating zero.
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        call    set_PARTITION_variables
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; 2a. /hd0: exists if mask 0x40 in [DRIVE_DATA+1] is set,
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        test    [problem_partition], 2
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;     data: hd0_data,
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        jnz     search_partitions_ide1  ; not found part
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;     number of partitions: [DRIVE_DATA+2]
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        test    [problem_partition], 1
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        test    [DRIVE_DATA+1], byte 0x40
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        jnz     @F                      ; not found known_part
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        jz      @f
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      ;cmp   [problem_partition],0
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        push    'hd0'
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      ;jne   search_partitions_ide1
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        mov     eax, esp        ; name
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        inc     byte [DRIVE_DATA+2]
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        mov     edx, hd0_data
- 
 
 29 
        call    ide_disk_add
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        call    partition_data_transfer
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        mov     [DRIVE_DATA+2], al
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        add     [transfer_adress], 100
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        pop     ecx             ; restore the stack
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    @@:
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@@:
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        inc     [known_part]
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38 
        jmp     search_partitions_ide0_1
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; 2b. /hd1: exists if mask 0x10 in [DRIVE_DATA+1] is set,
39 
 
 34 
;     data: hd1_data,
40 
 search_partitions_ide1:
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        test    [DRIVE_DATA+1], byte 0x10
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        jz      search_partitions_ide2
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        mov     eax, [hd_address_table]
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44 
        mov     [hdbase], eax   ;0x1f0
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45 
        mov     [hdid], 0x10
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        mov     [hdpos], 2
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        mov     [known_part], 1
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48 
 search_partitions_ide1_1:
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        call    set_PARTITION_variables
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        test    [problem_partition], 2
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        jnz     search_partitions_ide2
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;     number of partitions: [DRIVE_DATA+3]
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        test    [problem_partition], 1
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        jnz     @F
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      ;cmp   [problem_partition],0
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55 
      ;jne   search_partitions_ide2
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56 
        inc     byte [DRIVE_DATA+3]
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        call    partition_data_transfer
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        add     [transfer_adress], 100
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        test    [DRIVE_DATA+1], byte 0x10
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    @@:
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        inc     [known_part]
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        jmp     search_partitions_ide1_1
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 search_partitions_ide2:
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        test    [DRIVE_DATA+1], byte 0x4
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        jz      @f
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        jz      search_partitions_ide3
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        mov     eax, [hd_address_table+16]
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        push    'hd1'
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        mov     [hdbase], eax   ;0x170
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        mov     eax, esp
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        mov     [hdid], 0x0
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        mov     edx, hd1_data
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        mov     [hdpos], 3
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        mov     [known_part], 1
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 search_partitions_ide2_1:
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        call    set_PARTITION_variables
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        test    [problem_partition], 2
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        jnz     search_partitions_ide3
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        call    ide_disk_add
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        test    [problem_partition], 1
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        jnz     @F
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      ;cmp   [problem_partition],0
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      ;jne   search_partitions_ide3
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        inc     byte [DRIVE_DATA+4]
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        call    partition_data_transfer
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        mov     [DRIVE_DATA+3], al
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        add     [transfer_adress], 100
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        pop     ecx
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    @@:
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@@:
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        inc     [known_part]
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        jmp     search_partitions_ide2_1
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; 2c. /hd2: exists if mask 4 in [DRIVE_DATA+1] is set,
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;     data: hd2_data,
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 search_partitions_ide3:
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;     number of partitions: [DRIVE_DATA+4]
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        test    [DRIVE_DATA+1], byte 0x1
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        jz      end_search_partitions_ide
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        mov     eax, [hd_address_table+16]
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        test    [DRIVE_DATA+1], byte 4
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        mov     [hdbase], eax   ;0x170
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        jz      @f
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        mov     [hdid], 0x10
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        push    'hd2'
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        mov     [hdpos], 4
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        mov     [known_part], 1
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        mov     eax, esp
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 search_partitions_ide3_1:
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        call    set_PARTITION_variables
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        test    [problem_partition], 2
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        mov     edx, hd2_data
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        jnz     end_search_partitions_ide
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        call    ide_disk_add
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        test    [problem_partition], 1
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        jnz     @F
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      ;cmp   [problem_partition],0
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101 
      ;jne   end_search_partitions_ide
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        inc     byte [DRIVE_DATA+5]
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        call    partition_data_transfer
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        mov     [DRIVE_DATA+4], al
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        add     [transfer_adress], 100
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    @@:
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        pop     ecx
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        inc     [known_part]
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        jmp     search_partitions_ide3_1
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@@:
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end_search_partitions_ide:
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; 2d. /hd3: exists if mask 1 in [DRIVE_DATA+1] is set,
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        mov     [hdpos], 80h
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;     data: hd3_data,
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        mov     ecx, [NumBiosDisks]
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;     number of partitions: [DRIVE_DATA+5]
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        test    ecx, ecx
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        jz      end_search_partitions
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        test    [DRIVE_DATA+1], byte 1
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start_search_partitions_bd:
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        jz      @f
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        push    ecx
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        mov     eax, [hdpos]
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        and     [BiosDiskPartitions+(eax-80h)*4], 0
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        mov     [known_part], 1
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search_partitions_bd:
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        call    set_PARTITION_variables
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        test    [problem_partition], 2
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        jnz     end_search_partitions_bd
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        test    [problem_partition], 1
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        jnz     @F
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        ;cmp     [problem_partition], 0
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        push    'hd3'
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        ;jne     end_search_partitions_bd
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        mov     eax, [hdpos]
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        mov     eax, esp
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        inc     [BiosDiskPartitions+(eax-80h)*4]
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        mov     edx, hd3_data
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        call    partition_data_transfer
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        add     [transfer_adress], 100
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    @@:
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        inc     [known_part]
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        jmp     search_partitions_bd
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        call    ide_disk_add
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        mov     [DRIVE_DATA+5], al
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        pop     ecx
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@@:
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; 3. Notify the system about /bd* disks.
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; 3a. Check whether there are BIOS disks. If no, skip step 3.
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        xor     esi, esi
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        cmp     esi, [NumBiosDisks]
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        jz      .nobd
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; Loop over all disks.
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        push    0
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        push    'bd'
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.bdloop:
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; 3b. Get the drive number for using in /bd* name.
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        movzx   eax, byte [BiosDisksData+esi*4]
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        sub     al, 80h
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; 3c. Convert eax to decimal and store starting with [esp+3].
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; First 2 bytes in [esp] are "bd".
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        lea     edi, [esp+2]
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; store digits in the stack, ending with -'0'
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        push    -'0'
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@@:
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        xor     edx, edx
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iglobal
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align 4
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_10     dd      10
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endg
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        div     [_10]
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        push    edx
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        test    eax, eax
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        jnz     @b
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; restore digits from the stack, this reverses the order;
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; add '0', stop, when zero is reached
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@@:
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        pop     eax
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        add     al, '0'
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        stosb
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        jnz     @b
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; 3e. Call the API with userdata = 80h + ecx.
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        mov     eax, esp
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        lea     edx, [esi+80h]
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        stdcall disk_add, bd_callbacks, eax, edx, 0
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        test    eax, eax
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        jz      @f
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        stdcall disk_media_changed, eax, 1
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end_search_partitions_bd:
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@@:
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        pop     ecx
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; 3f. Continue the loop.
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        inc     esi
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        cmp     esi, [NumBiosDisks]
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        jnz     .bdloop
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        inc     [hdpos]
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        pop     ecx ecx ; restore stack after name
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        loop    start_search_partitions_bd
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.nobd:
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        jmp     end_search_partitions
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        jmp     end_search_partitions
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problem_partition db 0  ; used for partitions search
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; Helper procedure for search_partitions, adds one IDE disk.
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include  '../fs/part_set.inc'
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; For compatibility, number of partitions for IDE disks is kept in a separate variable,
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; so the procedure returns number of partitions.
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partition_data_transfer:
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; eax -> name, edx -> disk data
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        mov     edi, [transfer_adress]
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proc ide_disk_add
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        mov     esi, PARTITION_START            ;start of file_system_data
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        stdcall disk_add, ide_callbacks, eax, edx, 0
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        mov     ecx, (file_system_data_size+3)/4
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        rep movsd
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        ret
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uglobal
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        test    eax, eax
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transfer_adress dd 0
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endg
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        jz      @f
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partition_data_transfer_1:
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        push    eax
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;     cli
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        stdcall disk_media_changed, eax, 1
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        push    edi
 - 
 
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        mov     edi, PARTITION_START
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        pop     eax
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        mov     esi, [transfer_adress]
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        mov     eax, [eax+DISK.NumPartitions]
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        mov     ecx, (file_system_data_size+3)/4
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        cmp     eax, 255
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        rep movsd
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        jbe     @f
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        mov     eax, 255
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        pop     edi
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@@: