| /kernel/trunk/blkdev/hd_drv.inc |
|---|
| 9,20 → 9,6 |
| ; Low-level driver for HDD access |
| ; DMA support by Mario79 |
| ;************************************************************************** |
| ; |
| ; 0x600008 - first entry in cache list |
| ; |
| ; +0 - lba sector |
| ; +4 - state of cache sector |
| ; 0 = empty |
| ; 1 = used for read ( same as in hd ) |
| ; 2 = used for write ( differs from hd ) |
| ; |
| ; +65536 - cache entries |
| ; |
| ;************************************************************************** |
| align 4 |
| hd_read: |
| ;----------------------------------------------------------- |
| 32,8 → 18,11 |
| and [hd_error], 0 |
| push ecx esi edi ; scan cache |
| mov ecx,cache_max ; entries in cache |
| mov esi,HD_CACHE+8 |
| ; mov ecx,cache_max ; entries in cache |
| ; mov esi,HD_CACHE+8 |
| call calculate_cache |
| add esi,8 |
| mov edi,1 |
| hdreadcache: |
| 64,8 → 53,12 |
| .nodma: |
| call hd_read_pio |
| @@: |
| ; lea esi,[edi*8+HD_CACHE] |
| ; push eax |
| call calculate_cache_1 |
| lea esi,[edi*8+esi] |
| ; pop eax |
| lea esi,[edi*8+HD_CACHE] |
| mov [esi],eax ; sector number |
| mov dword [esi+4],1 ; hd read - mark as same as in hd |
| 73,7 → 66,12 |
| mov esi,edi |
| shl esi,9 |
| add esi,HD_CACHE+65536 |
| ; add esi,HD_CACHE+65536 |
| push eax |
| call calculate_cache_2 |
| add esi,eax |
| pop eax |
| mov edi,ebx |
| mov ecx,512/4 |
| cld |
| 126,7 → 124,12 |
| cli |
| push edi |
| shl edi,9 |
| add edi,HD_CACHE+65536 |
| ; add edi,HD_CACHE+65536 |
| push eax |
| call calculate_cache_2 |
| add edi,eax |
| pop eax |
| mov ecx,256 |
| mov edx,[hdbase] |
| cld |
| 163,8 → 166,11 |
| ; check if the cache already has the sector and overwrite it |
| mov ecx,cache_max |
| mov esi,HD_CACHE+8 |
| ; mov ecx,cache_max |
| ; mov esi,HD_CACHE+8 |
| call calculate_cache |
| add esi,8 |
| mov edi,1 |
| hdwritecache: |
| 189,7 → 195,12 |
| cmp [hd_error],0 |
| jne hd_write_access_denied |
| lea esi,[edi*8+HD_CACHE] |
| ; lea esi,[edi*8+HD_CACHE] |
| ; push eax |
| call calculate_cache_1 |
| lea esi,[edi*8+esi] |
| ; pop eax |
| mov [esi],eax ; sector number |
| yes_in_cache_write: |
| 197,7 → 208,12 |
| mov dword [esi+4],2 ; write - differs from hd |
| shl edi,9 |
| add edi,HD_CACHE+65536 |
| ; add edi,HD_CACHE+65536 |
| push eax |
| call calculate_cache_2 |
| add edi,eax |
| pop eax |
| mov esi,ebx |
| mov ecx,512/4 |
| cld |
| 206,98 → 222,15 |
| pop edi esi ecx |
| ret |
| write_cache: |
| ;----------------------------------------------------------- |
| ; write all changed sectors to disk |
| ;----------------------------------------------------------- |
| push eax ecx edx esi edi |
| ; write difference ( 2 ) from cache to hd |
| mov ecx,cache_max |
| mov esi,HD_CACHE+8 |
| mov edi,1 |
| write_cache_more: |
| cmp dword [esi+4],2 ; if cache slot is not different |
| jne .write_chain |
| mov dword [esi+4],1 ; same as in hd |
| mov eax,[esi] ; eax = sector to write |
| cmp eax,[PARTITION_START] |
| jb danger |
| cmp eax,[PARTITION_END] |
| ja danger |
| ; DMA write is permitted only if [allow_dma_access]=1 |
| cmp [allow_dma_access], 2 |
| jae .nodma |
| cmp [dma_hdd], 1 |
| jnz .nodma |
| ; ¡ê¥¤¨ï¥¬ § ¯¨áì 楯®çª¨ ¯®á«¥¤®¢ ⥫ìëå ᥪâ®à®¢ ¢ ®¤® ®¡à 饨¥ ª ¤¨áªã |
| cmp ecx, 1 |
| jz .nonext |
| cmp dword [esi+8+4], 2 |
| jnz .nonext |
| push eax |
| inc eax |
| cmp eax, [esi+8] |
| pop eax |
| jnz .nonext |
| cmp [cache_chain_started], 1 |
| jz @f |
| mov [cache_chain_started], 1 |
| mov [cache_chain_size], 0 |
| mov [cache_chain_pos], edi |
| mov [cache_chain_ptr], esi |
| @@: |
| inc [cache_chain_size] |
| cmp [cache_chain_size], 64 |
| jnz .continue |
| jmp .write_chain |
| .nonext: |
| call flush_cache_chain |
| mov [cache_chain_size], 1 |
| mov [cache_chain_ptr], esi |
| call write_cache_sector |
| jmp .continue |
| .nodma: |
| call cache_write_pio |
| .write_chain: |
| call flush_cache_chain |
| .continue: |
| danger: |
| add esi,8 |
| inc edi |
| dec ecx |
| jnz write_cache_more |
| call flush_cache_chain |
| return_02: |
| pop edi esi edx ecx eax |
| ret |
| flush_cache_chain: |
| cmp [cache_chain_started], 0 |
| jz @f |
| call write_cache_chain |
| mov [cache_chain_started], 0 |
| @@: |
| ret |
| align 4 |
| cache_write_pio: |
| call disable_ide_int |
| ; call disable_ide_int |
| call wait_for_hd_idle |
| cmp [hd_error],0 |
| jne hd_write_error |
| ; cli |
| cli |
| xor eax,eax |
| mov edx,[hdbase] |
| inc edx |
| 323,7 → 256,7 |
| inc edx |
| mov al,30h |
| out dx,al |
| ; sti |
| sti |
| call wait_for_sector_buffer |
| 332,75 → 265,26 |
| push ecx esi |
| ; cli |
| cli |
| mov esi,edi |
| shl esi,9 |
| add esi,HD_CACHE+65536 ; esi = from memory position |
| ; add esi,HD_CACHE+65536 ; esi = from memory position |
| push eax |
| call calculate_cache_2 |
| add esi,eax |
| pop eax |
| mov ecx,256 |
| mov edx,[hdbase] |
| cld |
| rep outsw |
| ; sti |
| sti |
| call enable_ide_int |
| ; call enable_ide_int |
| pop esi ecx |
| ret |
| align 4 |
| find_empty_slot: |
| ;----------------------------------------------------------- |
| ; find empty or read slot, flush cache if next 10% is used by write |
| ; output : edi = cache slot |
| ;----------------------------------------------------------- |
| ; push ecx esi |
| search_again: |
| mov ecx,cache_max*10/100 |
| mov edi,[cache_search_start] |
| search_for_empty: |
| inc edi |
| cmp edi,cache_max |
| jbe inside_cache |
| mov edi,1 |
| inside_cache: |
| cmp dword [edi*8+HD_CACHE+4],2 ; get cache slot info |
| jb found_slot ; it's empty or read |
| dec ecx |
| jnz search_for_empty |
| call write_cache ; no empty slots found, write all |
| cmp [hd_error],0 |
| jne found_slot_access_denied |
| jmp search_again ; and start again |
| found_slot: |
| mov [cache_search_start],edi |
| found_slot_access_denied: |
| ret |
| align 4 |
| clear_hd_cache: |
| push eax ecx edi |
| mov edi, HD_CACHE |
| mov ecx,16384 |
| xor eax,eax |
| cld |
| rep stosd ; clear hd cache with 0 |
| mov [cache_search_start],eax |
| mov [fat_in_cache],-1 |
| mov [fat_change],0 |
| pop edi ecx eax |
| ret |
| save_hd_wait_timeout: |
| push eax |
| 684,7 → 568,12 |
| push ecx esi edi |
| mov esi, eax |
| shl edi, 9 |
| add edi, HD_CACHE+0x10000 |
| ; add edi, HD_CACHE+0x10000 |
| push eax |
| call calculate_cache_2 |
| add edi,eax |
| pop eax |
| mov ecx, 512/4 |
| cld |
| rep movsd |
| 774,26 → 663,27 |
| jmp hd_read_dma |
| align 4 |
| write_cache_sector: |
| mov [cache_chain_size],1 |
| mov [cache_chain_pos],edi |
| write_cache_chain: |
| push esi |
| mov eax, IDE_descriptor_table |
| mov edx, [cache_chain_pos] |
| shl edx, 9 |
| add edx, DMA_HD_MEM+0x10000 |
| mov [eax], edx |
| movzx edx, [cache_chain_size] |
| shl edx, 9 |
| mov [eax+4], dx |
| jmp do_write_dma |
| write_cache_sector: |
| push esi |
| mov eax, IDE_descriptor_table |
| mov edx, edi |
| shl edx, 9 |
| add edx, DMA_HD_MEM+0x10000 |
| mov [eax], edx |
| mov word [eax+4], 0x200 |
| do_write_dma: |
| mov edx,eax |
| pusha |
| mov esi,[cache_chain_pos] |
| shl esi, 9 |
| call calculate_cache_2 |
| add esi,eax |
| mov edi,OS_BASE+0x284000 ;HD_CACHE |
| mov dword [edx], 0x284000 ;DMA_HD_MEM |
| movzx ecx, [cache_chain_size] |
| shl ecx, 9 |
| mov word [edx+4], cx |
| shr ecx,2 |
| cld |
| rep movsd |
| popa |
| sub eax, OS_BASE |
| mov dx, [IDEContrRegsBaseAddr] |
| cmp [hdbase], 0x1F0 |
| /kernel/trunk/blkdev/ide_cache.inc |
|---|
| 0,0 → 1,457 |
| ;************************************************************************** |
| ; |
| ; [cache_ide[X]_pointer] |
| ; or [cache_ide[X]_data_pointer] first entry in cache list |
| ; |
| ; +0 - lba sector |
| ; +4 - state of cache sector |
| ; 0 = empty |
| ; 1 = used for read ( same as in hd ) |
| ; 2 = used for write ( differs from hd ) |
| ; |
| ; [cache_ide[X]_system_data] |
| ; or [cache_ide[x]_appl_data] - cache entries |
| ; |
| ;************************************************************************** |
| align 4 |
| write_cache: |
| ;----------------------------------------------------------- |
| ; write all changed sectors to disk |
| ;----------------------------------------------------------- |
| push eax ecx edx esi edi |
| ; write difference ( 2 ) from cache to hd |
| ; mov ecx,cache_max |
| ; mov esi,HD_CACHE+8 |
| call calculate_cache |
| add esi,8 |
| mov edi,1 |
| write_cache_more: |
| cmp dword [esi+4],2 ; if cache slot is not different |
| jne .write_chain |
| mov dword [esi+4],1 ; same as in hd |
| mov eax,[esi] ; eax = sector to write |
| cmp eax,[PARTITION_START] |
| jb danger |
| cmp eax,[PARTITION_END] |
| ja danger |
| ; DMA write is permitted only if [allow_dma_access]=1 |
| cmp [allow_dma_access], 2 |
| jae .nodma |
| cmp [dma_hdd], 1 |
| jnz .nodma |
| ; ¡ê¥¤¨ï¥¬ § ¯¨áì 楯®çª¨ ¯®á«¥¤®¢ ⥫ìëå ᥪâ®à®¢ ¢ ®¤® ®¡à 饨¥ ª ¤¨áªã |
| cmp ecx, 1 |
| jz .nonext |
| cmp dword [esi+8+4], 2 |
| jnz .nonext |
| push eax |
| inc eax |
| cmp eax, [esi+8] |
| pop eax |
| jnz .nonext |
| cmp [cache_chain_started], 1 |
| jz @f |
| mov [cache_chain_started], 1 |
| mov [cache_chain_size], 0 |
| mov [cache_chain_pos], edi |
| mov [cache_chain_ptr], esi |
| @@: |
| inc [cache_chain_size] |
| cmp [cache_chain_size], 64 |
| jnz .continue |
| jmp .write_chain |
| .nonext: |
| call flush_cache_chain |
| mov [cache_chain_size], 1 |
| mov [cache_chain_ptr], esi |
| call write_cache_sector |
| jmp .continue |
| .nodma: |
| call cache_write_pio |
| .write_chain: |
| call flush_cache_chain |
| .continue: |
| danger: |
| add esi,8 |
| inc edi |
| dec ecx |
| jnz write_cache_more |
| call flush_cache_chain |
| return_02: |
| pop edi esi edx ecx eax |
| ret |
| flush_cache_chain: |
| cmp [cache_chain_started], 0 |
| jz @f |
| call write_cache_chain |
| mov [cache_chain_started], 0 |
| @@: |
| ret |
| align 4 |
| find_empty_slot: |
| ;----------------------------------------------------------- |
| ; find empty or read slot, flush cache if next 10% is used by write |
| ; output : edi = cache slot |
| ;----------------------------------------------------------- |
| ; push ecx esi |
| search_again: |
| ; mov ecx,cache_max*10/100 |
| ; mov edi,[cache_search_start] |
| call calculate_cache_3 |
| ; push eax edx |
| ; mov eax,ecx |
| ; mov ecx,10 |
| ; xor edx,edx |
| ; div ecx |
| ; mov ecx,eax |
| ; pop edx eax |
| shr ecx,3 |
| search_for_empty: |
| inc edi |
| ; cmp edi,cache_max |
| ; push eax |
| call calculate_cache_4 |
| ; cmp edi,eax |
| ; pop eax |
| jbe inside_cache |
| mov edi,1 |
| inside_cache: |
| ; cmp dword [edi*8+HD_CACHE+4],2 ; get cache slot info |
| push esi |
| call calculate_cache_1 |
| cmp dword [edi*8+esi+4],2 |
| pop esi |
| jb found_slot ; it's empty or read |
| dec ecx |
| jnz search_for_empty |
| call write_cache ; no empty slots found, write all |
| cmp [hd_error],0 |
| jne found_slot_access_denied |
| jmp search_again ; and start again |
| found_slot: |
| ; mov [cache_search_start],edi |
| call calculate_cache_5 |
| found_slot_access_denied: |
| ret |
| align 4 |
| clear_hd_cache: |
| ; push eax ecx edi |
| ; mov edi, HD_CACHE |
| ; mov ecx,16384 |
| ; xor eax,eax |
| ; cld |
| ; rep stosd ; clear hd cache with 0 |
| ; mov [cache_search_start],eax |
| mov [fat_in_cache],-1 |
| mov [fat_change],0 |
| ; pop edi ecx eax |
| ret |
| ;-------------------------------------------------------------------- |
| align 4 |
| calculate_cache: |
| ; mov ecx,cache_max ; entries in cache |
| ; mov esi,HD_CACHE+8 |
| ; 1 - IDE0 ... 4 - IDE3 |
| .ide0: |
| cmp [hdpos],1 |
| jne .ide1 |
| cmp [hdd_appl_data],0 |
| jne .ide0_appl_data |
| mov ecx,[cache_ide0_system_sad_size] |
| mov esi,[cache_ide0_pointer] |
| ret |
| .ide0_appl_data: |
| mov ecx,[cache_ide0_appl_sad_size] |
| mov esi,[cache_ide0_data_pointer] |
| ret |
| .ide1: |
| cmp [hdpos],2 |
| jne .ide2 |
| cmp [hdd_appl_data],0 |
| jne .ide1_appl_data |
| mov ecx,[cache_ide1_system_sad_size] |
| mov esi,[cache_ide1_pointer] |
| ret |
| .ide1_appl_data: |
| mov ecx,[cache_ide1_appl_sad_size] |
| mov esi,[cache_ide1_data_pointer] |
| ret |
| .ide2: |
| cmp [hdpos],3 |
| jne .ide3 |
| cmp [hdd_appl_data],0 |
| jne .ide2_appl_data |
| mov ecx,[cache_ide2_system_sad_size] |
| mov esi,[cache_ide2_pointer] |
| ret |
| .ide2_appl_data: |
| mov ecx,[cache_ide2_appl_sad_size] |
| mov esi,[cache_ide2_data_pointer] |
| ret |
| .ide3: |
| cmp [hdd_appl_data],0 |
| jne .ide3_appl_data |
| mov ecx,[cache_ide3_system_sad_size] |
| mov esi,[cache_ide3_pointer] |
| ret |
| .ide3_appl_data: |
| mov ecx,[cache_ide3_appl_sad_size] |
| mov esi,[cache_ide3_data_pointer] |
| ret |
| ;-------------------------------------------------------------------- |
| align 4 |
| calculate_cache_1: |
| ; lea esi,[edi*8+HD_CACHE] |
| ; 1 - IDE0 ... 4 - IDE3 |
| .ide0: |
| cmp [hdpos],1 |
| jne .ide1 |
| cmp [hdd_appl_data],0 |
| jne .ide0_appl_data |
| mov esi,[cache_ide0_pointer] |
| ret |
| .ide0_appl_data: |
| mov esi,[cache_ide0_data_pointer] |
| ret |
| .ide1: |
| cmp [hdpos],2 |
| jne .ide2 |
| cmp [hdd_appl_data],0 |
| jne .ide1_appl_data |
| mov esi,[cache_ide1_pointer] |
| ret |
| .ide1_appl_data: |
| mov esi,[cache_ide1_data_pointer] |
| ret |
| .ide2: |
| cmp [hdpos],3 |
| jne .ide3 |
| cmp [hdd_appl_data],0 |
| jne .ide2_appl_data |
| mov esi,[cache_ide2_pointer] |
| ret |
| .ide2_appl_data: |
| mov esi,[cache_ide2_data_pointer] |
| ret |
| .ide3: |
| cmp [hdd_appl_data],0 |
| jne .ide3_appl_data |
| mov esi,[cache_ide3_pointer] |
| ret |
| .ide3_appl_data: |
| mov esi,[cache_ide3_data_pointer] |
| ret |
| ;-------------------------------------------------------------------- |
| align 4 |
| calculate_cache_2: |
| ; add esi,HD_CACHE+65536 |
| ; 1 - IDE0 ... 4 - IDE3 |
| .ide0: |
| cmp [hdpos],1 |
| jne .ide1 |
| cmp [hdd_appl_data],0 |
| jne .ide0_appl_data |
| mov eax,[cache_ide0_system_data] |
| ret |
| .ide0_appl_data: |
| mov eax,[cache_ide0_appl_data] |
| ret |
| .ide1: |
| cmp [hdpos],2 |
| jne .ide2 |
| cmp [hdd_appl_data],0 |
| jne .ide1_appl_data |
| mov eax,[cache_ide1_system_data] |
| ret |
| .ide1_appl_data: |
| mov eax,[cache_ide1_appl_data] |
| ret |
| .ide2: |
| cmp [hdpos],3 |
| jne .ide3 |
| cmp [hdd_appl_data],0 |
| jne .ide2_appl_data |
| mov eax,[cache_ide2_system_data] |
| ret |
| .ide2_appl_data: |
| mov eax,[cache_ide2_appl_data] |
| ret |
| .ide3: |
| cmp [hdd_appl_data],0 |
| jne .ide3_appl_data |
| mov eax,[cache_ide3_system_data] |
| ret |
| .ide3_appl_data: |
| mov eax,[cache_ide3_appl_data] |
| ret |
| ;-------------------------------------------------------------------- |
| align 4 |
| calculate_cache_3: |
| ; mov ecx,cache_max*10/100 |
| ; mov edi,[cache_search_start] |
| ; 1 - IDE0 ... 4 - IDE3 |
| .ide0: |
| cmp [hdpos],1 |
| jne .ide1 |
| cmp [hdd_appl_data],0 |
| jne .ide0_appl_data |
| mov ecx,[cache_ide0_system_sad_size] |
| mov edi,[cache_ide0_search_start] |
| ret |
| .ide0_appl_data: |
| mov ecx,[cache_ide0_appl_sad_size] |
| mov edi,[cache_ide0_appl_search_start] |
| ret |
| .ide1: |
| cmp [hdpos],2 |
| jne .ide2 |
| cmp [hdd_appl_data],0 |
| jne .ide1_appl_data |
| mov ecx,[cache_ide1_system_sad_size] |
| mov edi,[cache_ide1_search_start] |
| ret |
| .ide1_appl_data: |
| mov ecx,[cache_ide1_appl_sad_size] |
| mov edi,[cache_ide1_appl_search_start] |
| ret |
| .ide2: |
| cmp [hdpos],3 |
| jne .ide3 |
| cmp [hdd_appl_data],0 |
| jne .ide2_appl_data |
| mov ecx,[cache_ide2_system_sad_size] |
| mov edi,[cache_ide2_search_start] |
| ret |
| .ide2_appl_data: |
| mov ecx,[cache_ide2_appl_sad_size] |
| mov edi,[cache_ide2_appl_search_start] |
| ret |
| .ide3: |
| cmp [hdd_appl_data],0 |
| jne .ide3_appl_data |
| mov ecx,[cache_ide3_system_sad_size] |
| mov edi,[cache_ide3_search_start] |
| ret |
| .ide3_appl_data: |
| mov ecx,[cache_ide3_appl_sad_size] |
| mov edi,[cache_ide3_appl_search_start] |
| ret |
| ;-------------------------------------------------------------------- |
| align 4 |
| calculate_cache_4: |
| ; cmp edi,cache_max |
| ; 1 - IDE0 ... 4 - IDE3 |
| .ide0: |
| cmp [hdpos],1 |
| jne .ide1 |
| cmp [hdd_appl_data],0 |
| jne .ide0_appl_data |
| cmp edi,[cache_ide0_system_sad_size] |
| ret |
| .ide0_appl_data: |
| cmp edi,[cache_ide0_appl_sad_size] |
| ret |
| .ide1: |
| cmp [hdpos],2 |
| jne .ide2 |
| cmp [hdd_appl_data],0 |
| jne .ide1_appl_data |
| cmp edi,[cache_ide1_system_sad_size] |
| ret |
| .ide1_appl_data: |
| cmp edi,[cache_ide1_appl_sad_size] |
| ret |
| .ide2: |
| cmp [hdpos],3 |
| jne .ide3 |
| cmp [hdd_appl_data],0 |
| jne .ide2_appl_data |
| cmp edi,[cache_ide2_system_sad_size] |
| ret |
| .ide2_appl_data: |
| cmp edi,[cache_ide2_appl_sad_size] |
| ret |
| .ide3: |
| cmp [hdd_appl_data],0 |
| jne .ide3_appl_data |
| cmp edi,[cache_ide3_system_sad_size] |
| ret |
| .ide3_appl_data: |
| cmp edi,[cache_ide3_appl_sad_size] |
| ret |
| ;-------------------------------------------------------------------- |
| align 4 |
| calculate_cache_5: |
| ; mov [cache_search_start],edi |
| ; 1 - IDE0 ... 4 - IDE3 |
| .ide0: |
| cmp [hdpos],1 |
| jne .ide1 |
| cmp [hdd_appl_data],0 |
| jne .ide0_appl_data |
| mov [cache_ide0_search_start],edi |
| ret |
| .ide0_appl_data: |
| mov [cache_ide0_appl_search_start],edi |
| ret |
| .ide1: |
| cmp [hdpos],2 |
| jne .ide2 |
| cmp [hdd_appl_data],0 |
| jne .ide1_appl_data |
| mov [cache_ide1_search_start],edi |
| ret |
| .ide1_appl_data: |
| mov [cache_ide1_appl_search_start],edi |
| ret |
| .ide2: |
| cmp [hdpos],3 |
| jne .ide3 |
| cmp [hdd_appl_data],0 |
| jne .ide2_appl_data |
| mov [cache_ide2_search_start],edi |
| ret |
| .ide2_appl_data: |
| mov [cache_ide2_appl_search_start],edi |
| ret |
| .ide3: |
| cmp [hdd_appl_data],0 |
| jne .ide3_appl_data |
| mov [cache_ide3_search_start],edi |
| ret |
| .ide3_appl_data: |
| mov [cache_ide3_appl_search_start],edi |
| ret |
| ;-------------------------------------------------------------------- |
| align 4 |
| calculate_linear_to_real: |
| shr eax, 12 |
| mov eax, [page_tabs+eax*4] |
| and eax, 0xFFFFF000 |
| ret |
| /kernel/trunk/const.inc |
|---|
| 292,8 → 292,8 |
| IRQ_SAVE equ (OS_BASE+0x02E0000) |
| BOOT_VAR equ (OS_BASE+0x02f0000) |
| DMA_HD_MEM equ 0x0300000 |
| HD_CACHE equ (OS_BASE+DMA_HD_MEM) |
| ; DMA_HD_MEM equ 0x0300000 |
| ; HD_CACHE equ (OS_BASE+DMA_HD_MEM) |
| stack_data_start equ (OS_BASE+0x0400000) |
| eth_data_start equ (OS_BASE+0x0400000) |
| /kernel/trunk/data32.inc |
|---|
| 337,6 → 337,57 |
| mem_BACKGROUND rd 1 |
| wraw_bacground_select rb 1 |
| cache_ide0_pointer rd 1 |
| cache_ide0_size rd 1 ; not use |
| cache_ide0_data_pointer rd 1 |
| cache_ide0_system_data_size rd 1 ; not use |
| cache_ide0_appl_data_size rd 1 ; not use |
| cache_ide0_system_data rd 1 |
| cache_ide0_appl_data rd 1 |
| cache_ide0_system_sad_size rd 1 |
| cache_ide0_appl_sad_size rd 1 |
| cache_ide0_search_start rd 1 |
| cache_ide0_appl_search_start rd 1 |
| cache_ide1_pointer rd 1 |
| cache_ide1_size rd 1 ; not use |
| cache_ide1_data_pointer rd 1 |
| cache_ide1_system_data_size rd 1 ; not use |
| cache_ide1_appl_data_size rd 1 ; not use |
| cache_ide1_system_data rd 1 |
| cache_ide1_appl_data rd 1 |
| cache_ide1_system_sad_size rd 1 |
| cache_ide1_appl_sad_size rd 1 |
| cache_ide1_search_start rd 1 |
| cache_ide1_appl_search_start rd 1 |
| cache_ide2_pointer rd 1 |
| cache_ide2_size rd 1 ; not use |
| cache_ide2_data_pointer rd 1 |
| cache_ide2_system_data_size rd 1 ; not use |
| cache_ide2_appl_data_size rd 1 ; not use |
| cache_ide2_system_data rd 1 |
| cache_ide2_appl_data rd 1 |
| cache_ide2_system_sad_size rd 1 |
| cache_ide2_appl_sad_size rd 1 |
| cache_ide2_search_start rd 1 |
| cache_ide2_appl_search_start rd 1 |
| cache_ide3_pointer rd 1 |
| cache_ide3_size rd 1 ; not use |
| cache_ide3_data_pointer rd 1 |
| cache_ide3_system_data_size rd 1 ; not use |
| cache_ide3_appl_data_size rd 1 ; not use |
| cache_ide3_system_data rd 1 |
| cache_ide3_appl_data rd 1 |
| cache_ide3_system_sad_size rd 1 |
| cache_ide3_appl_sad_size rd 1 |
| cache_ide3_search_start rd 1 |
| cache_ide3_appl_search_start rd 1 |
| debug_step_pointer rd 1 |
| hdd_appl_data rb 1 ; 0 = system cache, 1 - application cache |
| lba_read_enabled rd 1 ; 0 = disabled , 1 = enabled |
| pci_access_enabled rd 1 ; 0 = disabled , 1 = enabled |
| timer_ticks_enable rb 1 ; for cd driver |
| /kernel/trunk/detect/disks.inc |
|---|
| 1,5 → 1,6 |
| $Revision$ |
| include 'dev_fd.inc' |
| include 'dev_hdcd.inc' |
| include 'getcache.inc' |
| include 'sear_par.inc' |
| /kernel/trunk/detect/getcache.inc |
|---|
| 0,0 → 1,389 |
| ;cache_ide0_pointer dd 0 |
| ;cache_ide0_size dd 0 ; not use |
| ;cache_ide0_data_pointer dd 0 |
| ;cache_ide0_system_data_size dd 0 ; not use |
| ;cache_ide0_appl_data_size dd 0 ; not use |
| ;cache_ide0_system_data dd 0 |
| ;cache_ide0_appl_data dd 0 |
| ;cache_ide0_system_sad_size dd 0 |
| ;cache_ide0_appl_sad_size dd 0 |
| pusha |
| mov eax,[pg_data.pages_free] |
| ; 1/32 |
| shr eax,5 |
| ; round off up to 8 pages |
| shr eax,3 |
| shl eax,3 |
| ; translate pages in butes *4096 |
| shl eax,12 |
| ; check a upper size of the cache, no more than 1 Mb on the physical device |
| cmp eax,1024*1024 |
| jbe @f |
| mov eax,1024*1024 |
| jmp .continue |
| @@: |
| ; check a lower size of the cache, not less than 128 Kb on the physical device |
| cmp eax,128*1024 |
| jae @f |
| mov eax,128*1024 |
| @@: |
| .continue: |
| mov [cache_ide0_size],eax |
| mov [cache_ide1_size],eax |
| mov [cache_ide2_size],eax |
| mov [cache_ide3_size],eax |
| xor eax,eax |
| mov [cache_ide0_search_start],eax |
| mov [cache_ide0_appl_search_start],eax |
| mov [cache_ide1_search_start],eax |
| mov [cache_ide1_appl_search_start],eax |
| mov [cache_ide2_search_start],eax |
| mov [cache_ide2_appl_search_start],eax |
| mov [cache_ide3_search_start],eax |
| mov [cache_ide3_appl_search_start],eax |
| mov [hdd_appl_data],1 ;al |
| mov cl,[DRIVE_DATA+1] |
| mov ch,cl |
| and cl,11b |
| cmp cl,0 |
| je .ide2 |
| call get_cache_ide3 |
| .ide2: |
| mov cl,ch |
| and cl,1100b |
| cmp cl,0 |
| je .ide1 |
| call get_cache_ide2 |
| .ide1: |
| mov cl,ch |
| and cl,110000b |
| cmp cl,0 |
| je .ide0 |
| call get_cache_ide1 |
| .ide0: |
| mov cl,ch |
| and cl,11000000b |
| cmp cl,0 |
| je end_get_cache |
| call get_cache_ide0 |
| jmp end_get_cache |
| get_cache_ide0: |
| push ecx |
| stdcall kernel_alloc,[cache_ide0_size] |
| mov [cache_ide0_pointer],eax |
| pop ecx |
| mov edx,eax |
| mov eax,[cache_ide0_size] |
| shr eax,3 |
| mov [cache_ide0_system_data_size],eax |
| mov ebx,eax |
| imul eax,7 |
| mov [cache_ide0_appl_data_size],eax |
| add ebx,edx |
| mov [cache_ide0_data_pointer],ebx |
| cmp cl,10000000b |
| je .cd |
| push ecx |
| mov eax,[cache_ide0_system_data_size] |
| call calculate_for_hd |
| add eax,[cache_ide0_pointer] |
| mov [cache_ide0_system_data],eax |
| mov [cache_ide0_system_sad_size],ecx |
| push edi |
| mov edi,[cache_ide0_pointer] |
| call clear_ide_cache |
| pop edi |
| mov eax,[cache_ide0_appl_data_size] |
| call calculate_for_hd |
| add eax,[cache_ide0_data_pointer] |
| mov [cache_ide0_appl_data],eax |
| mov [cache_ide0_appl_sad_size],ecx |
| push edi |
| mov edi,[cache_ide0_data_pointer] |
| call clear_ide_cache |
| pop edi |
| pop ecx |
| ret |
| .cd: |
| push ecx |
| mov eax,[cache_ide0_system_data_size] |
| call calculate_for_cd |
| add eax,[cache_ide0_pointer] |
| mov [cache_ide0_system_data],eax |
| mov [cache_ide0_system_sad_size],ecx |
| push edi |
| mov edi,[cache_ide0_pointer] |
| call clear_ide_cache |
| pop edi |
| mov eax,[cache_ide0_appl_data_size] |
| call calculate_for_cd |
| add eax,[cache_ide0_data_pointer] |
| mov [cache_ide0_appl_data],eax |
| mov [cache_ide0_appl_sad_size],ecx |
| push edi |
| mov edi,[cache_ide0_data_pointer] |
| call clear_ide_cache |
| pop edi |
| pop ecx |
| ret |
| get_cache_ide1: |
| push ecx |
| stdcall kernel_alloc,[cache_ide1_size] |
| mov [cache_ide1_pointer],eax |
| pop ecx |
| mov edx,eax |
| mov eax,[cache_ide1_size] |
| shr eax,3 |
| mov [cache_ide1_system_data_size],eax |
| mov ebx,eax |
| imul eax,7 |
| mov [cache_ide1_appl_data_size],eax |
| add ebx,edx |
| mov [cache_ide1_data_pointer],ebx |
| cmp cl,100000b |
| je .cd |
| push ecx |
| mov eax,[cache_ide1_system_data_size] |
| call calculate_for_hd |
| add eax,[cache_ide1_pointer] |
| mov [cache_ide1_system_data],eax |
| mov [cache_ide1_system_sad_size],ecx |
| push edi |
| mov edi,[cache_ide1_pointer] |
| call clear_ide_cache |
| pop edi |
| mov eax,[cache_ide1_appl_data_size] |
| call calculate_for_hd |
| add eax,[cache_ide1_data_pointer] |
| mov [cache_ide1_appl_data],eax |
| mov [cache_ide1_appl_sad_size],ecx |
| push edi |
| mov edi,[cache_ide1_data_pointer] |
| call clear_ide_cache |
| pop edi |
| pop ecx |
| ret |
| .cd: |
| push ecx |
| mov eax,[cache_ide1_system_data_size] |
| call calculate_for_cd |
| add eax,[cache_ide1_pointer] |
| mov [cache_ide1_system_data],eax |
| mov [cache_ide1_system_sad_size],ecx |
| push edi |
| mov edi,[cache_ide1_pointer] |
| call clear_ide_cache |
| pop edi |
| mov eax,[cache_ide1_appl_data_size] |
| call calculate_for_cd |
| add eax,[cache_ide1_data_pointer] |
| mov [cache_ide1_appl_data],eax |
| mov [cache_ide1_appl_sad_size],ecx |
| push edi |
| mov edi,[cache_ide1_data_pointer] |
| call clear_ide_cache |
| pop edi |
| pop ecx |
| ret |
| get_cache_ide2: |
| push ecx |
| stdcall kernel_alloc,[cache_ide2_size] |
| mov [cache_ide2_pointer],eax |
| pop ecx |
| mov edx,eax |
| mov eax,[cache_ide2_size] |
| shr eax,3 |
| mov [cache_ide2_system_data_size],eax |
| mov ebx,eax |
| imul eax,7 |
| mov [cache_ide2_appl_data_size],eax |
| add ebx,edx |
| mov [cache_ide2_data_pointer],ebx |
| cmp cl,1000b |
| je .cd |
| push ecx |
| mov eax,[cache_ide2_system_data_size] |
| call calculate_for_hd |
| add eax,[cache_ide2_pointer] |
| mov [cache_ide2_system_data],eax |
| mov [cache_ide2_system_sad_size],ecx |
| push edi |
| mov edi,[cache_ide2_pointer] |
| call clear_ide_cache |
| pop edi |
| mov eax,[cache_ide2_appl_data_size] |
| call calculate_for_hd |
| add eax,[cache_ide2_data_pointer] |
| mov [cache_ide2_appl_data],eax |
| mov [cache_ide2_appl_sad_size],ecx |
| push edi |
| mov edi,[cache_ide2_data_pointer] |
| call clear_ide_cache |
| pop edi |
| pop ecx |
| ret |
| .cd: |
| push ecx |
| mov eax,[cache_ide2_system_data_size] |
| call calculate_for_cd |
| add eax,[cache_ide2_pointer] |
| mov [cache_ide2_system_data],eax |
| mov [cache_ide2_system_sad_size],ecx |
| push edi |
| mov edi,[cache_ide2_pointer] |
| call clear_ide_cache |
| pop edi |
| mov eax,[cache_ide2_appl_data_size] |
| call calculate_for_cd |
| add eax,[cache_ide2_data_pointer] |
| mov [cache_ide2_appl_data],eax |
| mov [cache_ide2_appl_sad_size],ecx |
| push edi |
| mov edi,[cache_ide2_data_pointer] |
| call clear_ide_cache |
| pop edi |
| pop ecx |
| ret |
| get_cache_ide3: |
| push ecx |
| stdcall kernel_alloc,[cache_ide3_size] |
| mov [cache_ide3_pointer],eax |
| pop ecx |
| mov edx,eax |
| mov eax,[cache_ide3_size] |
| shr eax,3 |
| mov [cache_ide3_system_data_size],eax |
| mov ebx,eax |
| imul eax,7 |
| mov [cache_ide3_appl_data_size],eax |
| add ebx,edx |
| mov [cache_ide3_data_pointer],ebx |
| cmp cl,10b |
| je .cd |
| push ecx |
| mov eax,[cache_ide3_system_data_size] |
| call calculate_for_hd |
| add eax,[cache_ide3_pointer] |
| mov [cache_ide3_system_data],eax |
| mov [cache_ide3_system_sad_size],ecx |
| push edi |
| mov edi,[cache_ide3_pointer] |
| call clear_ide_cache |
| pop edi |
| mov eax,[cache_ide3_appl_data_size] |
| call calculate_for_hd |
| add eax,[cache_ide3_data_pointer] |
| mov [cache_ide3_appl_data],eax |
| mov [cache_ide3_appl_sad_size],ecx |
| push edi |
| mov edi,[cache_ide3_data_pointer] |
| call clear_ide_cache |
| pop edi |
| pop ecx |
| ret |
| .cd: |
| push ecx |
| mov eax,[cache_ide3_system_data_size] |
| call calculate_for_cd |
| add eax,[cache_ide3_pointer] |
| mov [cache_ide3_system_data],eax |
| mov [cache_ide3_system_sad_size],ecx |
| push edi |
| mov edi,[cache_ide3_pointer] |
| call clear_ide_cache |
| pop edi |
| mov eax,[cache_ide3_appl_data_size] |
| call calculate_for_cd |
| add eax,[cache_ide3_data_pointer] |
| mov [cache_ide3_appl_data],eax |
| mov [cache_ide3_appl_sad_size],ecx |
| push edi |
| mov edi,[cache_ide3_data_pointer] |
| call clear_ide_cache |
| pop edi |
| pop ecx |
| ret |
| calculate_for_hd: |
| push eax |
| mov ebx,eax |
| shr eax,9 |
| shl eax,3 |
| sub ebx,eax |
| shr ebx,9 |
| mov ecx,ebx |
| shl ebx,9 |
| pop eax |
| sub eax,ebx |
| ret |
| calculate_for_cd: |
| push eax |
| mov ebx,eax |
| shr eax,11 |
| shl eax,3 |
| sub ebx,eax |
| shr ebx,11 |
| mov ecx,ebx |
| shl ebx,11 |
| pop eax |
| sub eax,ebx |
| ret |
| clear_ide_cache: |
| push eax |
| shl ecx,1 |
| xor eax,eax |
| cld |
| rep stosd |
| pop eax |
| ret |
| end_get_cache: |
| ; mov [cache_ide0_pointer],HD_CACHE |
| ; mov [cache_ide0_system_data],HD_CACHE+65536 |
| ; mov [cache_ide0_system_sad_size],1919 |
| popa |
| /kernel/trunk/kernel32.inc |
|---|
| 229,6 → 229,9 |
| include "blkdev/fdc.inc" |
| include "blkdev/flp_drv.inc" |
| ; IDE cache |
| include "blkdev/ide_cache.inc" |
| ; HD drive controller |
| include "blkdev/hd_drv.inc" |
| /kernel/trunk/memmap.inc |
|---|
| 176,7 → 176,8 |
| ; 0x80280000 -> 281FFF ramdisk fat |
| ; 0x80282000 -> 283FFF floppy fat |
| ; |
| ; 0x80284000 -> 297FFF free (80 Kb) |
| ; 0x80284000 -> 28BFFF HDD DMA AREA |
| ; 0x8028C000 -> 297FFF free (48 Kb) |
| ; |
| ; 0x80298000 -> 29ffff auxiliary table for background smoothing code |
| ; |