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Fixed sys_pcibios

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git-svn-id: svn://kolibrios.org@594 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Evgeny Grechnikov (Diamond) 2007-07-28 12:21:18 +00:00
parent 92f657f440
commit c2cb1b6183
1 changed files with 47 additions and 47 deletions
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94
kernel/trunk/bus/pci/pci32.inc
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@ -1,3 +1,4 @@
$Revision$
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
@ -21,8 +22,6 @@
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
$Revision$
;***************************************************************************
; Function
@ -375,23 +374,23 @@ pci_emu_dat: times 30*10 db 0
;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
align 4
sys_pcibios:
cmp [pci_access_enabled], 1
jne .unsupported_func
mov edi, [pci_bios_entry]
test edi, edi
jz .emulate_bios
xchg ebx, eax
xchg ecx, eax
xchg edx, eax
xchg esi, eax
mov edi, eax
xchg edi, eax
cmp [pci_access_enabled], 1
jne .unsupported_func
cmp [pci_bios_entry], 0
jz .emulate_bios
push ds
mov ax, pci_data_sel
mov ds, ax
mov eax, ebp
call pword [cs:pci_bios_entry]
pop ds
push ds
mov ax, pci_data_sel
mov ds, ax
mov eax, ebp
mov ah, 0B1h
call pword [cs:pci_bios_entry]
pop ds
jmp .return
;-=-=-=-=-=-=-=-=
@ -399,85 +398,86 @@ sys_pcibios:
cmp ebp, 1 ; PCI_FUNCTION_ID
jnz .not_PCI_BIOS_PRESENT
mov edx, 'PCI '
xor ah, ah
mov al, [OS_BASE+0x2F0000 + 0x9020]
mov bx, [OS_BASE+0x2F0000 + 0x9022]
mov cl, [OS_BASE+0x2F0000 + 0x9021]
jmp .return
xor ah, ah
jmp .return_abcd
.not_PCI_BIOS_PRESENT:
cmp ebp, 2 ; FIND_PCI_DEVICE
jne .not_FIND_PCI_DEVICE
mov esi, pci_emu_dat
..nxt: cmp [esi], cx
mov ebx, pci_emu_dat
..nxt: cmp [ebx], dx
jne ..no
cmp [esi + 2], bx
cmp [ebx + 2], cx
jne ..no
dec dx
dec si
jns ..no
mov bx, [esi + 4]
xor ah, ah
jmp .return
..no: cmp word[esi], 0
mov bx, [ebx + 4]
xor ah, ah
jmp .return_ab
..no: cmp word[ebx], 0
je ..dev_not_found
add esi, 10
add ebx, 10
jmp ..nxt
..dev_not_found:
mov ah, 0x86 ; DEVICE_NOT_FOUND
jmp .return
jmp .return_a
.not_FIND_PCI_DEVICE:
cmp ebp, 3 ; FIND_PCI_CLASS_CODE
jne .not_FIND_PCI_CLASS_CODE
mov esi, pci_emu_dat
shl ebx, 8
..nxt2: cmp [esi], ebx
shl ecx, 8
..nxt2: cmp [esi], ecx
jne ..no2
mov bx, [esi]
xor ah, ah
jmp .return
xor ah, ah
jmp .return_ab
..no2: cmp dword[esi], 0
je ..dev_not_found2
je ..dev_not_found
add esi, 10
jmp ..nxt2
..dev_not_found2:
mov ah, 0x86 ; DEVICE_NOT_FOUND
jmp .return
.not_FIND_PCI_CLASS_CODE:
cmp ebp, 8 ; READ_CONFIG_*
jb .not_READ_CONFIG
cmp ebp, 0x0A
ja .not_READ_CONFIG
mov ebx, esi
mov bh, al
mov edx, ebp
mov al, dl
mov eax, ebp
mov ah, bh
mov edx, edi
mov bh, bl
mov bl, dl
call pci_read_reg
mov ecx, eax
xor ah, ah ; SUCCESSFUL
jmp .return
jmp .return_abc
.not_READ_CONFIG:
cmp ebp, 0x0B ; WRITE_CONFIG_*
jb .not_WRITE_CONFIG
cmp ebp, 0x0D
ja .not_WRITE_CONFIG
mov ecx, ebx
mov ebx, esi
mov bh, al
mov edx, ebp
inc edx
mov al, dl
lea eax, [ebp+1]
mov ah, bh
mov edx, edi
mov bh, bl
mov bl, dl
call pci_write_reg
xor ah, ah ; SUCCESSFUL
jmp .return
jmp .return_abc
.not_WRITE_CONFIG:
.unsupported_func:
mov ah, 0x81 ; FUNC_NOT_SUPPORTED
.return:mov dword[esp + 8 ], edi
mov dword[esp + 12], esi
mov dword[esp + 24], ebx
.return_abcd:
mov dword[esp + 28], edx
.return_abc:
mov dword[esp + 32], ecx
.return_ab:
mov dword[esp + 24], ebx
.return_a:
mov dword[esp + 36], eax
ret