mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-11-29 04:03:09 +03:00
kolibri-ahci:
- added ahci_read git-svn-id: svn://kolibrios.org@9143 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Rustem Gimadutdinov (rgimad)
parent
b89963de95
commit
7126f01a79
@ -322,7 +322,7 @@ ahci_callbacks:
|
||||
dd 0 ; no close function
|
||||
dd 0 ; no closemedia function
|
||||
dd ahci_querymedia
|
||||
dd 0;ahci_read
|
||||
dd ahci_read
|
||||
dd 0;ahci_write
|
||||
dd 0 ; no flush function
|
||||
dd 0 ; use default cache size
|
||||
@ -564,7 +564,8 @@ ahci_init:
|
||||
cmp [ecx + PORT_DATA.drive_type], AHCI_DEV_SATA
|
||||
jne .after_add_disk ; skip adding disk code
|
||||
; register disk in system:
|
||||
stdcall ahci_read_first_sector, ecx
|
||||
|
||||
;stdcall ahci_read_first_sector, ecx
|
||||
|
||||
push ecx
|
||||
mov eax, [hd_counter]
|
||||
@ -883,6 +884,212 @@ endp
|
||||
tmpstr2 rb 16
|
||||
;----------------------------------------------------------
|
||||
|
||||
|
||||
; Read sectors
|
||||
; return value: 0 = success, otherwise = error
|
||||
proc ahci_read stdcall pdata: dword, buffer: dword, startsector: qword, numsectors_ptr:dword
|
||||
locals
|
||||
cmdslot dd ?
|
||||
cmdheader dd ?
|
||||
cmdtable dd ?
|
||||
numsectors dd ?
|
||||
buffer_pos dd ?
|
||||
buffer_length dd ?
|
||||
endl
|
||||
|
||||
pushad
|
||||
|
||||
mov ecx, ahci_mutex
|
||||
call mutex_lock
|
||||
|
||||
; xor ecx, ecx
|
||||
; mov esi, [buffer]
|
||||
; .print_data:
|
||||
; cmp ecx, 512
|
||||
; jae .end_print_data
|
||||
|
||||
; mov al, byte [esi + ecx]
|
||||
; mov byte [tmpstr], al
|
||||
; mov byte [tmpstr + 1], 0
|
||||
; DEBUGF 1, "0x%x(%s) ", al:2, tmpstr
|
||||
|
||||
; inc ecx
|
||||
; jmp .print_data
|
||||
; .end_print_data:
|
||||
; DEBUGF 1, "\n"
|
||||
|
||||
mov eax, [numsectors_ptr]
|
||||
mov eax, [eax]
|
||||
mov [numsectors], eax
|
||||
|
||||
DEBUGF 1, " ahci_read: buffer = 0x%x, startsector = 0x%x:%x, numsectors = %u\n", [buffer], [startsector], [startsector + 4], eax
|
||||
|
||||
mov esi, [pdata] ; esi - address of PORT_DATA struct of port
|
||||
mov edi, [esi + PORT_DATA.port] ; edi - address of HBA_PORT struct of port
|
||||
mov eax, edi
|
||||
call ahci_find_cmdslot
|
||||
cmp eax, -1
|
||||
jne .cmdslot_found
|
||||
|
||||
DEBUGF 1, "No free cmdslot on port %u\n", [esi + PORT_DATA.portno]
|
||||
jmp .ret
|
||||
|
||||
.cmdslot_found:
|
||||
mov [cmdslot], eax
|
||||
DEBUGF 1, "Found free cmdslot %u on port %u\n", [cmdslot], [esi + PORT_DATA.portno]
|
||||
|
||||
shl eax, BSF sizeof.HBA_CMD_HDR
|
||||
add eax, [esi + PORT_DATA.clb]
|
||||
mov [cmdheader], eax ; address of virtual mapping of command header
|
||||
mov eax, [cmdslot]
|
||||
mov eax, [esi + eax*4 + PORT_DATA.ctba_arr]
|
||||
mov [cmdtable], eax ; address of virtual mapping of command table of command header
|
||||
|
||||
mov eax, [cmdheader]
|
||||
and [eax + HBA_CMD_HDR.flags1], not 0x1F ; zero out lower 5 bits, they will be used for cfl
|
||||
or [eax + HBA_CMD_HDR.flags1], (sizeof.FIS_REG_H2D / 4) ; set command fis length in dwords
|
||||
movzx bx, [eax + HBA_CMD_HDR.flags1]
|
||||
btr bx, 6 ; flag W = 0
|
||||
mov [eax + HBA_CMD_HDR.flags1], bl
|
||||
movzx bx, [eax + HBA_CMD_HDR.flags2]
|
||||
btr bx, 2 ; flag C = 0
|
||||
mov [eax + HBA_CMD_HDR.flags2], bl
|
||||
|
||||
mov ebx, [numsectors]
|
||||
shl ebx, 9 ; *= 512
|
||||
mov [buffer_length], ebx
|
||||
dec ebx
|
||||
shr ebx, 12 ; /= 4096
|
||||
inc ebx
|
||||
mov [eax + HBA_CMD_HDR.prdtl], bx
|
||||
;DEBUGF 1, " prdtl = %u\n", [eax + HBA_CMD_HDR.prdtl]:2
|
||||
|
||||
; zero out the command table with its prdt entries
|
||||
dec ebx
|
||||
shl ebx, BSF sizeof.HBA_PRDT_ENTRY
|
||||
add ebx, sizeof.HBA_CMD_TBL
|
||||
stdcall _memset, [cmdtable], 0, ebx
|
||||
|
||||
DEBUGF 1, " prdtl = %u\n", [eax + HBA_CMD_HDR.prdtl]:2
|
||||
;jmp .ret
|
||||
|
||||
xor ecx, ecx
|
||||
movzx edx, [eax + HBA_CMD_HDR.prdtl]
|
||||
dec edx
|
||||
mov eax, [buffer]
|
||||
mov [buffer_pos], eax
|
||||
|
||||
.prdt_fill:
|
||||
cmp ecx, edx
|
||||
jae .prdt_fill_end
|
||||
|
||||
mov ebx, [buffer_pos]
|
||||
and ebx, 0xFFF
|
||||
call get_pg_addr ; eax = phys addr
|
||||
add eax, ebx
|
||||
DEBUGF 1, " PHYS = 0x%x\n", eax
|
||||
mov ebx, ecx
|
||||
shl ebx, BSF sizeof.HBA_PRDT_ENTRY
|
||||
add ebx, [cmdtable]
|
||||
add ebx, HBA_CMD_TBL.prdt_entry ; now ebx - address of ecx'th prdt_entry
|
||||
|
||||
mov [ebx + HBA_PRDT_ENTRY.dba], eax
|
||||
mov [ebx + HBA_PRDT_ENTRY.dbau], 0
|
||||
and [ebx + HBA_PRDT_ENTRY.flags], not 0x3FFFFF ; zero out lower 22 bits, they used for byte count
|
||||
or [ebx + HBA_PRDT_ENTRY.flags], 4096 - 1 ; reason why -1 see in spec on this field
|
||||
; or [eax + HBA_CMD_TBL.prdt_entry + HBA_PRDT_ENTRY.flags], 1 shl 31 ; enable interrupt on completion
|
||||
add [buffer_pos], 4096
|
||||
sub [buffer_length], 4096
|
||||
|
||||
inc ecx
|
||||
jmp .prdt_fill
|
||||
.prdt_fill_end:
|
||||
|
||||
mov ebx, [buffer_pos]
|
||||
and ebx, 0xFFF
|
||||
call get_pg_addr ; eax = phys addr
|
||||
add eax, ebx
|
||||
DEBUGF 1, " PHYS. = 0x%x\n", eax
|
||||
DEBUGF 1, " ecx = 0x%x\n", ecx
|
||||
mov ebx, ecx
|
||||
shl ebx, BSF sizeof.HBA_PRDT_ENTRY
|
||||
add ebx, [cmdtable]
|
||||
add ebx, HBA_CMD_TBL.prdt_entry ; now ebx - address of ecx'th prdt_entry
|
||||
mov [ebx + HBA_PRDT_ENTRY.dba], eax
|
||||
mov [ebx + HBA_PRDT_ENTRY.dbau], 0
|
||||
and [ebx + HBA_PRDT_ENTRY.flags], not 0x3FFFFF ; zero out lower 22 bits, they used for byte count
|
||||
mov eax, [buffer_length]
|
||||
dec eax
|
||||
DEBUGF 1, " DBC. = %u\n", eax
|
||||
or [ebx + HBA_PRDT_ENTRY.flags], eax ; reason why -1 see in spec on this field
|
||||
; or [eax + HBA_CMD_TBL.prdt_entry + HBA_PRDT_ENTRY.flags], 1 shl 31 ; enable interrupt on completion
|
||||
|
||||
mov eax, [cmdtable]
|
||||
mov byte [eax + HBA_CMD_TBL.cfis + FIS_REG_H2D.fis_type], FIS_TYPE_REG_H2D
|
||||
movzx ebx, byte [eax + HBA_CMD_TBL.cfis + FIS_REG_H2D.flags]
|
||||
bts ebx, bit_AHCI_H2D_FLAG_CMD ; Set Command bit in H2D FIS.
|
||||
mov byte [eax + HBA_CMD_TBL.cfis + FIS_REG_H2D.flags], bl
|
||||
|
||||
mov byte [eax + HBA_CMD_TBL.cfis + FIS_REG_H2D.command], ATA_CMD_READ_DMA_EX
|
||||
|
||||
mov ebx, dword [startsector]
|
||||
mov byte [eax + HBA_CMD_TBL.cfis + FIS_REG_H2D.lba0], bl
|
||||
shr ebx, 8
|
||||
mov byte [eax + HBA_CMD_TBL.cfis + FIS_REG_H2D.lba1], bl
|
||||
shr ebx, 8
|
||||
mov byte [eax + HBA_CMD_TBL.cfis + FIS_REG_H2D.lba2], bl
|
||||
mov byte [eax + HBA_CMD_TBL.cfis + FIS_REG_H2D.device], 1 shl 6 ; LBA mode
|
||||
shr ebx, 8
|
||||
mov byte [eax + HBA_CMD_TBL.cfis + FIS_REG_H2D.lba3], bl
|
||||
mov ebx, dword [startsector + 4]
|
||||
mov byte [eax + HBA_CMD_TBL.cfis + FIS_REG_H2D.lba4], bl
|
||||
shr ebx, 8
|
||||
mov byte [eax + HBA_CMD_TBL.cfis + FIS_REG_H2D.lba5], bl
|
||||
|
||||
mov ebx, [numsectors]
|
||||
mov byte [eax + HBA_CMD_TBL.cfis + FIS_REG_H2D.countl], bl
|
||||
shr ebx, 8
|
||||
mov byte [eax + HBA_CMD_TBL.cfis + FIS_REG_H2D.counth], bl
|
||||
|
||||
; Wait on previous command to complete, before issuing new command.
|
||||
stdcall ahci_port_wait, edi, AHCI_PORT_TIMEOUT
|
||||
|
||||
mov eax, [cmdslot]
|
||||
bts [edi + HBA_PORT.command_issue], eax ; Issue the command
|
||||
|
||||
; Wait for command completion
|
||||
stdcall ahci_port_cmd_wait, edi, eax;, AHCI_PORT_CMD_TIMEOUT
|
||||
|
||||
DEBUGF 1, "sata_error register = 0x%x\n", [edi + HBA_PORT.sata_error]
|
||||
|
||||
DEBUGF 1, "reading completed\n"
|
||||
|
||||
xor ecx, ecx
|
||||
mov esi, [buffer]
|
||||
.print_data:
|
||||
cmp ecx, 512
|
||||
jae .end_print_data
|
||||
|
||||
mov al, byte [esi + ecx]
|
||||
mov byte [tmpstr], al
|
||||
mov byte [tmpstr + 1], 0
|
||||
DEBUGF 1, "0x%x(%s) ", al:2, tmpstr
|
||||
|
||||
inc ecx
|
||||
jmp .print_data
|
||||
.end_print_data:
|
||||
DEBUGF 1, "\n"
|
||||
|
||||
.ret:
|
||||
mov ecx, ahci_mutex
|
||||
call mutex_unlock
|
||||
|
||||
popad
|
||||
xor eax, eax
|
||||
ret
|
||||
endp
|
||||
tmpstr rb 16
|
||||
|
||||
; Start command engine
|
||||
; in: eax - address of HBA_PORT structure
|
||||
ahci_start_cmd:
|
||||
|
||||
Loading…
Reference in New Issue
Block a user