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$Revision: 467 $
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$Revision: 472 $
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;                                                              ;;
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;;                                                              ;;
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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    ;;
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;; Distributed under terms of the GNU General Public License    ;;
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;;                                                              ;;
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;;                                                              ;;
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;-----------------------------------------------------------
 31 
;-----------------------------------------------------------
32 
        and     [hd_error], 0
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        and     [hd_error], 0
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    push  ecx esi edi           ; scan cache
 33 
    push  ecx esi edi           ; scan cache
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 34 
 
35 
    mov   ecx,cache_max         ; entries in cache
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    mov   ecx,cache_max         ; entries in cache
36 
    mov   esi,OS_BASE+0x600000+8
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    mov   esi,HD_CACHE+8
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    mov   edi,1
 37 
    mov   edi,1
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 38 
 
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60 
        jmp     @f
 60 
        jmp     @f
61 
.nodma:
 61 
.nodma:
62 
        call    hd_read_pio
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        call    hd_read_pio
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@@:
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@@:
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 64 
 
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    lea   esi,[edi*8+OS_BASE+0x600000]
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    lea   esi,[edi*8+HD_CACHE]
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    mov   [esi],eax             ; sector number
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    mov   [esi],eax             ; sector number
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    mov   dword [esi+4],1       ; hd read - mark as same as in hd
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    mov   dword [esi+4],1       ; hd read - mark as same as in hd
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 68 
 
69 
  yeshdcache:
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  yeshdcache:
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 70 
 
71 
    mov   esi,edi
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    mov   esi,edi
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    shl   esi,9
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    shl   esi,9
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    add   esi,OS_BASE+0x600000+65536
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    add   esi,HD_CACHE+65536
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    mov   edi,ebx
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    mov   edi,ebx
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    mov   ecx,512/4
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    mov   ecx,512/4
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    jne   hd_read_error
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    jne   hd_read_error
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 122 
 
123 
    cli
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    cli
124 
    push  edi
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    push  edi
125 
    shl   edi,9
 125 
    shl   edi,9
126 
    add   edi,OS_BASE+0x600000+65536
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    add   edi,HD_CACHE+65536
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    mov   ecx,256
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    mov   ecx,256
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    mov   edx,[hdbase]
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    mov   edx,[hdbase]
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    cld
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    cld
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    rep   insw
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    rep   insw
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    push  ecx esi edi
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    push  ecx esi edi
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 160 
 
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    ; check if the cache already has the sector and overwrite it
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    ; check if the cache already has the sector and overwrite it
162 
 
 162 
 
163 
    mov   ecx,cache_max
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    mov   ecx,cache_max
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    mov   esi,OS_BASE+0x600000+8
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    mov   esi,HD_CACHE+8
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    mov   edi,1
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    mov   edi,1
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184 
 
 184 
 
185 
    call  find_empty_slot       ; ret in edi
 185 
    call  find_empty_slot       ; ret in edi
186 
    cmp   [hd_error],0
 186 
    cmp   [hd_error],0
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    jne   hd_write_access_denied
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    jne   hd_write_access_denied
188 
 
 188 
 
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    lea   esi,[edi*8+OS_BASE+0x600000]
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    lea   esi,[edi*8+HD_CACHE]
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    mov   [esi],eax             ; sector number
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    mov   [esi],eax             ; sector number
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 191 
 
192 
  yes_in_cache_write:
 192 
  yes_in_cache_write:
193 
 
 193 
 
194 
    mov   dword [esi+4],2       ; write - differs from hd
 194 
    mov   dword [esi+4],2       ; write - differs from hd
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 195 
 
196 
    shl   edi,9
 196 
    shl   edi,9
197 
    add   edi,OS_BASE+0x600000+65536
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    add   edi,HD_CACHE+65536
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    push  eax ecx edx esi edi
 211 
    push  eax ecx edx esi edi
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212 
 
 212 
 
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    ; write difference ( 2 ) from cache to hd
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    ; write difference ( 2 ) from cache to hd
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 214 
 
215 
    mov   ecx,cache_max
 215 
    mov   ecx,cache_max
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    mov   esi,OS_BASE+0x600000+8
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    mov   esi,HD_CACHE+8
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    mov   edi,1
 217 
    mov   edi,1
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    push  ecx esi
 329 
    push  ecx esi
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 330 
 
331 
;    cli
 331 
;    cli
332 
    mov   esi,edi
 332 
    mov   esi,edi
333 
    shl   esi,9
 333 
    shl   esi,9
334 
    add   esi,OS_BASE+0x600000+65536    ; esi = from memory position
 334 
    add   esi,HD_CACHE+65536    ; esi = from memory position
335 
    mov   ecx,256
 335 
    mov   ecx,256
336 
    mov   edx,[hdbase]
 336 
    mov   edx,[hdbase]
337 
    cld
 337 
    cld
338 
    rep   outsw
 338 
    rep   outsw
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    jbe   inside_cache
 363 
    jbe   inside_cache
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    mov   edi,1
 364 
    mov   edi,1
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 365 
 
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  inside_cache:
 366 
  inside_cache:
367 
 
 367 
 
368 
    cmp   dword [edi*8+OS_BASE+0x600000+4],2    ; get cache slot info
 368 
    cmp   dword [edi*8+HD_CACHE+4],2    ; get cache slot info
369 
    jb    found_slot                    ; it's empty or read
 369 
    jb    found_slot                    ; it's empty or read
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    dec   ecx
 370 
    dec   ecx
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 384 
 
385 
align 4
 385 
align 4
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386 
clear_hd_cache:
 386 
clear_hd_cache:
387 
 
 387 
 
388 
    push  eax ecx edi
 388 
    push  eax ecx edi
389 
    mov   edi,OS_BASE+0x600000
 389 
    mov   edi, HD_CACHE
390 
    mov   ecx,16384
 390 
    mov   ecx,16384
391 
    xor   eax,eax
 391 
    xor   eax,eax
392 
    cld
 392 
    cld
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678 
        shl     eax, 9
 678 
        shl     eax, 9
679 
        add     eax, OS_BASE+0x284000
 679 
        add     eax, OS_BASE+0x284000
680 
        push    ecx esi edi
 680 
        push    ecx esi edi
681 
        mov     esi, eax
 681 
        mov     esi, eax
682 
        shl     edi, 9
 682 
        shl     edi, 9
683 
        add     edi, OS_BASE+0x610000
 683 
        add     edi, HD_CACHE+0x10000
684 
        mov     ecx, 512/4
 684 
        mov     ecx, 512/4
685 
        cld
 685 
        cld
686 
        rep     movsd
 686 
        rep     movsd
687 
        pop     edi esi ecx
 687 
        pop     edi esi ecx
688 
        pop     edx
 688 
        pop     edx
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773 
write_cache_chain:
 773 
write_cache_chain:
774 
        push    esi
 774 
        push    esi
775 
        mov     eax, IDE_descriptor_table
 775 
        mov     eax, IDE_descriptor_table
776 
        mov     edx, [cache_chain_pos]
 776 
        mov     edx, [cache_chain_pos]
777 
        shl     edx, 9
 777 
        shl     edx, 9
778 
        add     edx, 0x610000
 778 
        add     edx, DMA_HD_MEM+0x10000
779 
        mov     [eax], edx
 779 
        mov     [eax], edx
780 
        movzx   edx, [cache_chain_size]
 780 
        movzx   edx, [cache_chain_size]
781 
        shl     edx, 9
 781 
        shl     edx, 9
782 
        mov     [eax+4], dx
 782 
        mov     [eax+4], dx
783 
        jmp     do_write_dma
 783 
        jmp     do_write_dma
784 
write_cache_sector:
 784 
write_cache_sector:
785 
        push    esi
 785 
        push    esi
786 
        mov     eax, IDE_descriptor_table
 786 
        mov     eax, IDE_descriptor_table
787 
        mov     edx, edi
 787 
        mov     edx, edi
788 
        shl     edx, 9
 788 
        shl     edx, 9
789 
        add     edx, 0x610000
 789 
        add     edx, DMA_HD_MEM+0x10000
790 
        mov     [eax], edx
 790 
        mov     [eax], edx
791 
        mov     word [eax+4], 0x200
 791 
        mov     word [eax+4], 0x200
792 
do_write_dma:
 792 
do_write_dma:
793 
        sub     eax, OS_BASE
 793 
        sub     eax, OS_BASE
794 
        mov     dx, [IDEContrRegsBaseAddr]
 794 
        mov     dx, [IDEContrRegsBaseAddr]