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Rev 1379 Rev 1410
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;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
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;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License    ;;
 4 
;; Distributed under terms of the GNU General Public License    ;;
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;;                                                              ;;
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;;                                                              ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision: 1379 $
 8 
$Revision: 1410 $
- 
 
 9 
 
9 
 
 10 
 
10 
 
 11 
;*************************************************************
11 
;*************************************************************
 12 
;* 13.02.2010 Find all partition and check supported FS
12 
;* 12.07.2007 Check all 4 entry of MBR and EMBR
 13 
;* 12.07.2007 Check all 4 entry of MBR and EMBR
13 
;* 29.04.2006 Elimination of hangup after the
 14 
;* 29.04.2006 Elimination of hangup after the
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24 
; Mario79
 25 
; Mario79
25 
; START place
 26 
; START place
26 
;******************************************************
 27 
;******************************************************
27 
PARTITION_START      dd 0x3f
 28 
PARTITION_START      dd 0x3f
28 
PARTITION_END        dd 0
 29 
PARTITION_END        dd 0
29 
fs_type              db 0       ; 0=none, 1=NTFS, 2=EXT2/3, 16=FAT16, 32=FAT32
 30 
fs_type              db 0       ; 1=NTFS, 2=EXT2/3, 16=FAT16, 32=FAT32
30 
align 4
 31 
align 4
Line 31... Line 32...
31 
 
 32 
 
32 
fs_dependent_data_start:
 33 
fs_dependent_data_start:
Line 148... Line 149...
148 
; |-> PARTITION3
 149 
; |-> PARTITION3
149 
; |-> PARTITION4
 150 
; |-> PARTITION4
Line 150... Line 151...
150 
 
 151 
 
151 
set_PARTITION_variables:
 152 
set_PARTITION_variables:
152 
set_FAT32_variables:        ;deprecated
 153 
set_FAT32_variables:        ;deprecated
153 
    mov   [problem_partition],0
 154 
    and   [problem_partition], 0
154 
    call  reserve_hd1
 155 
    call  reserve_hd1
Line 155... Line 156...
155 
    call  reserve_hd_channel
 156 
    call  reserve_hd_channel
Line 156... Line 157...
156 
 
 157 
 
157 
    pushad
 158 
    pushad
Line 158... Line 159...
158 
 
 159 
 
159 
    cmp   dword [hdpos],0
 160 
    cmp   dword [hdpos],0
160 
    je    problem_hd
 161 
    je    problem_hd
161 
 
 162 
 
Line 162... Line 163...
162 
    xor   ecx,ecx               ; partition count
 163 
    xor   ecx,ecx               ; partition count
163 
    or    edx,-1                ; flag for partition
 164 
    ;or    edx,-1                ; flag for partition
Line 176... Line 177...
176 
    cmp  [hd_error],0
 177 
    cmp  [hd_error],0
177 
    jne  problem_hd
 178 
    jne  problem_hd
Line 178... Line 179...
178 
 
 179 
 
179 
    cmp   word [ebx+0x1fe],0xaa55 ; is it valid boot sector?
 180 
    cmp   word [ebx+0x1fe],0xaa55 ; is it valid boot sector?
- 
 
 181 
    jnz   end_partition_chain
180 
    jnz   end_partition_chain
 182 
    push  eax                      ; push only one time
181 
    cmp   dword [ebx+0x1be+0xc],0 ; skip over empty partition
 183 
    cmp   dword [ebx+0x1be+0xc],0 ; skip over empty partition
182 
    jnz    test_primary_partition_0
 184 
    jnz    test_primary_partition_0
183 
    cmp   dword [ebx+0x1be+0xc+16],0
 185 
    cmp   dword [ebx+0x1be+0xc+16],0
184 
    jnz    test_primary_partition_1
 186 
    jnz    test_primary_partition_1
185 
    cmp   dword [ebx+0x1be+0xc+16+16],0
 187 
    cmp   dword [ebx+0x1be+0xc+16+16],0
186 
    jnz    test_primary_partition_2
 188 
    jnz    test_primary_partition_2
187 
    cmp   dword [ebx+0x1be+0xc+16+16+16],0
 189 
    cmp   dword [ebx+0x1be+0xc+16+16+16],0
- 
 
 190 
    jnz    test_primary_partition_3
188 
    jnz    test_primary_partition_3
 191 
    pop   eax
Line 189... Line 192...
189 
    jmp   end_partition_chain
 192 
    jmp   end_partition_chain
190 
 
 - 
 
191 
test_primary_partition_0:
 193 
 
192 
    push  eax
 194 
test_primary_partition_0:
193 
    mov   al,[ebx+0x1be+4]      ; get primary partition type
 - 
 
194 
    call  scan_partition_types
 195 
    mov   al,[ebx+0x1be+4]      ; get primary partition type
Line 195... Line 196...
195 
    pop   eax
 196 
    call  scan_partition_types
196 
    jnz   test_primary_partition_1      ; no. skip over
 197 
    jnz   test_primary_partition_1      ; no. skip over
197 
 
 198 
 
Line -... Line 199...
- 
 
 199 
    inc   ecx
198 
    inc   ecx
 200 
    cmp   ecx,[known_part]       ; is it wanted partition?
199 
    cmp   ecx,[known_part]       ; is it wanted partition?
 201 
    jnz   test_primary_partition_1      ; no
- 
 
 202 
 
200 
    jnz   test_primary_partition_1      ; no
 203 
        pop     eax
201 
 
 204 
        ;mov     edx, eax                ; start sector
- 
 
 205 
        add     eax, [ebx+0x1be+8]      ; add relative start
202 
        mov     edx, eax                ; start sector
 206 
        ;mov     [PARTITON_START],edx
203 
        add     edx, [ebx+0x1be+8]      ; add relative start
 207 
        ;push    edx
204 
        push    edx
 208 
        mov     edx, [ebx+0x1be+12]     ; length
205 
        add     edx, [ebx+0x1be+12]     ; add length
 209 
        ;add     edx, eax                ; add length
206 
        dec     edx                     ; PARTITION_END is inclusive
 210 
        ;dec     edx                     ; PARTITION_END is inclusive
207 
        mov     [PARTITION_END], edx    ; note that this can be changed
 211 
        ;mov     [PARTITION_END], edx    ; note that this can be changed
- 
 
 212 
                                        ; when file system data will be available
Line 208... Line 213...
208 
                                        ; when file system data will be available
 213 
        mov     cl, [ebx+0x1be+4]       ; fs_type
209 
        mov     dl, [ebx+0x1be+4]
 - 
 
210 
        mov     [fs_type], dl           ; save for FS recognizer (separate FAT vs NTFS)
 214 
        ;mov     [fs_type], dl           ; save for FS recognizer (separate FAT vs NTFS)
211 
        pop     edx
 215 
        ;pop     edx
212 
 
 - 
 
213 
test_primary_partition_1:
 216 
        jmp     hd_and_partition_ok
Line 214... Line 217...
214 
    push  eax
 217 
 
215 
    mov   al,[ebx+0x1be+4+16]      ; get primary partition type
 218 
test_primary_partition_1:
216 
    call  scan_partition_types
 219 
    mov   al,[ebx+0x1be+4+16]      ; get primary partition type
Line -... Line 220...
- 
 
 220 
    call  scan_partition_types
- 
 
 221 
    jnz   test_primary_partition_2        ; no. skip over
- 
 
 222 
 
- 
 
 223 
    inc   ecx
- 
 
 224 
    cmp   ecx,[known_part]       ; is it wanted partition?
- 
 
 225 
    jnz   test_primary_partition_2        ; no
217 
    pop   eax
 226 
 
218 
    jnz   test_primary_partition_2        ; no. skip over
 227 
        pop     eax
219 
 
 228 
        add     eax, [ebx+0x1be+8+16]
220 
    inc   ecx
 229 
        mov     edx, [ebx+0x1be+12+16]
221 
    cmp   ecx,[known_part]       ; is it wanted partition?
 230 
        mov     cl, [ebx+0x1be+4+16]
222 
    jnz   test_primary_partition_2        ; no
 231 
        jmp     hd_and_partition_ok
223 
 
 232 
 
224 
        mov     edx, eax
 233 
        ;mov     edx, eax
225 
        add     edx, [ebx+0x1be+8+16]
 234 
        ;add     edx, [ebx+0x1be+8+16]
Line 226... Line 235...
226 
        push    edx
 235 
        ;push    edx
227 
        add     edx, [ebx+0x1be+12+16]
 - 
 
228 
        dec     edx
 236 
        ;add     edx, [ebx+0x1be+12+16]
229 
        mov     [PARTITION_END], edx
 237 
        ;dec     edx
230 
        mov     dl, [ebx+0x1be+4+16]
 - 
 
231 
        mov     [fs_type], dl
 238 
        ;mov     [PARTITION_END], edx
Line 232... Line 239...
232 
        pop     edx
 239 
        ;mov     al, [ebx+0x1be+4+16]
233 
 
 240 
        ;mov     [fs_type], dl
234 
test_primary_partition_2:
 241 
        ;pop     edx
Line -... Line 242...
- 
 
 242 
 
- 
 
 243 
test_primary_partition_2:
- 
 
 244 
    mov   al,[ebx+0x1be+4+16+16]      ; get primary partition type
- 
 
 245 
    call  scan_partition_types
- 
 
 246 
    jnz   test_primary_partition_3        ; no. skip over
235 
    push  eax
 247 
 
236 
    mov   al,[ebx+0x1be+4+16+16]      ; get primary partition type
 248 
    inc   ecx
237 
    call  scan_partition_types
 249 
    cmp   ecx,[known_part]       ; is it wanted partition?
238 
    pop   eax
 250 
    jnz   test_primary_partition_3        ; no
239 
    jnz   test_primary_partition_3        ; no. skip over
 251 
 
240 
 
 252 
        pop     eax
241 
    inc   ecx
 253 
        add     eax, [ebx+0x1be+8+16+16]
242 
    cmp   ecx,[known_part]       ; is it wanted partition?
 254 
        mov     edx, [ebx+0x1be+12+16+16]
243 
    jnz   test_primary_partition_3        ; no
 255 
        mov     cl, [ebx+0x1be+4+16+16]
Line 244... Line 256...
244 
 
 256 
        jmp     hd_and_partition_ok
245 
        mov     edx, eax
 - 
 
246 
        add     edx, [ebx+0x1be+8+16+16]
 257 
        ;mov     edx, eax
247 
        push    edx
 258 
        ;add     edx, [ebx+0x1be+8+16+16]
248 
        add     edx, [ebx+0x1be+12+16+16]
 - 
 
249 
        dec     edx
 259 
        ;push    edx
Line 250... Line 260...
250 
        mov     [PARTITION_END], edx
 260 
        ;add     edx, [ebx+0x1be+12+16+16]
251 
        mov     dl, [ebx+0x1be+4+16+16]
 261 
        ;dec     edx
252 
        mov     [fs_type], dl
 262 
        ;mov     [PARTITION_END], edx
Line -... Line 263...
- 
 
 263 
        ;mov     al, [ebx+0x1be+4+16+16]
- 
 
 264 
        ;mov     [fs_type], dl
- 
 
 265 
        ;pop     edx
- 
 
 266 
 
- 
 
 267 
test_primary_partition_3:
- 
 
 268 
    mov   al,[ebx+0x1be+4+16+16+16]      ; get primary partition type
253 
        pop     edx
 269 
    call  scan_partition_types
254 
 
 270 
    jnz   test_ext_partition_0        ; no. skip over
255 
test_primary_partition_3:
 271 
 
256 
    push  eax
 272 
    inc   ecx
257 
    mov   al,[ebx+0x1be+4+16+16+16]      ; get primary partition type
 273 
    cmp   ecx,[known_part]       ; is it wanted partition?
258 
    call  scan_partition_types
 274 
    jnz   test_ext_partition_0  ; no
259 
    pop   eax
 275 
 
260 
    jnz   test_ext_partition_0        ; no. skip over
 276 
        pop     eax
261 
 
 277 
        add     eax, [ebx+0x1be+8+16+16+16]
Line 262... Line 278...
262 
    inc   ecx
 278 
        mov     edx, [ebx+0x1be+12+16+16+16]
263 
    cmp   ecx,[known_part]       ; is it wanted partition?
 279 
        mov     cl, [ebx+0x1be+4+16+16+16]
264 
    jnz   test_ext_partition_0  ; no
 280 
        jmp     hd_and_partition_ok
265 
 
 281 
 
266 
        mov     edx, eax
 - 
 
267 
        add     edx, [ebx+0x1be+8+16+16+16]
 282 
        ;mov     edx, eax
Line 268... Line 283...
268 
        push    edx
 283 
        ;add     edx, [ebx+0x1be+8+16+16+16]
269 
        add     edx, [ebx+0x1be+12+16+16+16]
 284 
        ;push    edx
270 
        dec     edx
 285 
        ;add     edx, [ebx+0x1be+12+16+16+16]
Line 271... Line 286...
271 
        mov     [PARTITION_END], edx
 286 
        ;dec     edx
272 
        mov     dl, [ebx+0x1be+4+16+16+16]
 - 
 
273 
        mov     [fs_type], dl
 287 
        ;mov     [PARTITION_END], edx
274 
        pop     edx
 288 
        ;mov     al, [ebx+0x1be+4+16+16+16]
275 
 
 - 
 
276 
test_ext_partition_0:
 289 
        ;mov     [fs_type], dl
Line 277... Line 290...
277 
    push  eax
 290 
        ;pop     edx
278 
    mov   al,[ebx+0x1be+4]   ; get extended partition type
 291 
 
279 
    call  scan_extended_types
 292 
test_ext_partition_0:
Line 280... Line 293...
280 
    pop   eax
 293 
    pop   eax               ; ¯à®áâ® ¢ëª¨¤ë¢ ¥¬ ¨§ á⥪ 
281 
    jnz   test_ext_partition_1
 - 
 
282 
 
 294 
    mov   al,[ebx+0x1be+4]   ; get extended partition type
283 
    mov   eax,[ebx+0x1be+8]     ; add relative start
 295 
    call  scan_extended_types
284 
    test  eax,eax               ; is there extended partition?
 - 
 
285 
    jnz   new_mbr               ; yes. read it
 296 
    jnz   test_ext_partition_1
Line 286... Line 297...
286 
 
 297 
 
287 
test_ext_partition_1:
 298 
    mov   eax,[ebx+0x1be+8]     ; add relative start
288 
    push  eax
 299 
    test  eax,eax               ; is there extended partition?
Line 289... Line 300...
289 
    mov   al,[ebx+0x1be+4+16]   ; get extended partition type
 300 
    jnz   new_mbr               ; yes. read it
290 
    call  scan_extended_types
 - 
 
291 
    pop   eax
 301 
 
292 
    jnz   test_ext_partition_2
 302 
test_ext_partition_1:
293 
 
 - 
 
294 
    mov   eax,[ebx+0x1be+8+16]  ; add relative start
 303 
    mov   al,[ebx+0x1be+4+16]   ; get extended partition type
Line 295... Line 304...
295 
    test  eax,eax               ; is there extended partition?
 304 
    call  scan_extended_types
296 
    jnz   new_mbr               ; yes. read it
 305 
    jnz   test_ext_partition_2
297 
 
 306 
 
Line 298... Line 307...
298 
test_ext_partition_2:
 307 
    mov   eax,[ebx+0x1be+8+16]  ; add relative start
299 
    push  eax
 308 
    test  eax,eax               ; is there extended partition?
- 
 
 309 
    jnz   new_mbr               ; yes. read it
- 
 
 310 
 
- 
 
 311 
test_ext_partition_2:
- 
 
 312 
    mov   al,[ebx+0x1be+4+16+16]   ; get extended partition type
- 
 
 313 
    call  scan_extended_types
- 
 
 314 
    jnz   test_ext_partition_3
- 
 
 315 
 
Line 300... Line -...
300 
    mov   al,[ebx+0x1be+4+16+16]   ; get extended partition type
 - 
 
301 
    call  scan_extended_types
 - 
 
302 
    pop   eax
 - 
 
Line 303... Line 316...
303 
    jnz   test_ext_partition_3
 316 
    mov   eax,[ebx+0x1be+8+16+16]     ; add relative start
304 
 
 317 
    test  eax,eax               ; is there extended partition?
305 
    mov   eax,[ebx+0x1be+8+16+16]     ; add relative start
 318 
    jnz   new_mbr               ; yes. read it
306 
    test  eax,eax               ; is there extended partition?
 319 
 
Line 341... Line 354...
341 
    repne scasb                 ; is it extended partition?
 354 
    repne scasb                 ; is it extended partition?
342 
    pop   ecx
 355 
    pop   ecx
343 
    ret
 356 
    ret
Line 344... Line 357...
344 
 
 357 
 
345 
problem_fat_dec_count:          ; bootsector is missing or another problem
 358 
problem_fat_dec_count:          ; bootsector is missing or another problem
Line 346... Line 359...
346 
    dec   [partition_count]     ; remove it from partition_count
 359 
;    dec   [partition_count]     ; remove it from partition_count
347 
 
 360 
 
348 
problem_partition_or_fat:
 - 
 
Line -... Line 361...
- 
 
 361 
problem_partition_or_fat:
- 
 
 362 
    or    [problem_partition],1
349 
problem_hd:
 363 
 
350 
    popad
 364 
return_from_part_set:
351 
 
 365 
    popad
352 
    mov   [fs_type],0
 - 
 
353 
    call  free_hd_channel
 366 
    ;mov   [fs_type],0
Line 354... Line 367...
354 
    mov   [hd1_status],0        ; free
 367 
    call  free_hd_channel
- 
 
 368 
    mov   [hd1_status],0        ; free
- 
 
 369 
    ret
- 
 
 370 
 
355 
    mov   [problem_partition],1
 371 
hd_and_partition_ok:
356 
    ret
 372 
 
- 
 
 373 
;eax = PARTITION_START edx=PARTITION_LENGTH cl=fs_type
- 
 
 374 
    mov   [fs_type], cl
- 
 
 375 
    ;mov   eax,edx
- 
 
 376 
    mov   [PARTITION_START],eax
357 
 
 377 
    add   edx, eax
358 
hd_and_partition_ok:
 378 
    dec   edx
359 
    mov   eax,edx
 379 
    mov   [PARTITION_END], edx
Line 360... Line 380...
360 
    mov   [PARTITION_START],eax
 380 
 
361 
        mov     edx, [PARTITION_END]
 381 
   ;     mov     edx, [PARTITION_END]
362 
        sub     edx, eax
 382 
   ;     sub     edx, eax
363 
        inc     edx     ; edx = length of partition
 383 
   ;     inc     edx     ; edx = length of partition § ç¥¬ ®­® ­ ¬??
Line 504... Line 524...
504 
    mov   [fatMASK],0x0000FFFF
 524 
    mov   [fatMASK],0x0000FFFF
505 
    mov   [fs_type],16         ; Fat16
 525 
    mov   [fs_type],16         ; Fat16
506 
    call  free_hd_channel
 526 
    call  free_hd_channel
507 
    mov   [hd1_status],0        ; free
 527 
    mov   [hd1_status],0        ; free
508 
    ret
 528 
    ret
- 
 
 529 
>