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AGP driver: use PCI list from kernel.

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git-svn-id: svn://kolibrios.org@5544 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
hidnplayr 2015-03-23 12:15:55 +00:00
parent 4094e1f523
commit c1f96ec4d4
1 changed files with 24 additions and 32 deletions
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56
drivers/unfinished/agp.asm
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@ -88,51 +88,39 @@ endp
align 4
proc detect
locals
last_bus dd ?
endl
mov esi, msgSearch
invoke SysMsgBoardStr
xor eax, eax
mov [bus], eax
inc eax
invoke PciApi ; get last bus
cmp eax, -1
je .error
mov [last_bus], eax
invoke GetPCIList
mov edx, eax
.next_bus:
and [devfn], 0
.next_dev:
invoke PciRead16, [bus], [devfn], PCI_header.subclass ; subclass/vendor
cmp ax, 0x0300 ; display controller - vga compatable controller
.loop:
mov ebx, [eax + PCIDEV.class]
cmp bx, 0x0300 ; display controller - vga compatible controller
je .found
cmp ax, 0x0302 ; display controller - 3d controller
cmp bx, 0x0302 ; display controller - 3d controller
je .found
cmp ax, 0x0380 ; display controller - other display controller
cmp bx, 0x0380 ; display controller - other display controller
je .found
.next:
inc [devfn]
cmp [devfn], 256
jb .next_dev
mov eax, [bus]
inc eax
mov [bus], eax
cmp eax, [last_bus]
jna .next_bus
mov eax, [eax + PCIDEV.fd]
cmp eax, edx
jne .loop
.error:
mov esi, msgFail
mov esi, msgDone
invoke SysMsgBoardStr
xor eax, eax
inc eax
or eax, -1
ret
.found:
push eax edx
movzx ebx, [eax + PCIDEV.bus]
mov [bus], ebx
movzx ebx, [eax + PCIDEV.devfn]
mov [devfn], ebx
invoke PciRead8, [bus], [devfn], PCI_header00.prog_if
test al, 1 shl 4 ; got capabilities list?
jnz .got_capabilities_list
@ -140,6 +128,7 @@ proc detect
; TODO: Do it the old way: detect device and check with a list of known capabilities
; stupid pre PCI 2.2 board....
pop edx eax
jmp .next
.got_capabilities_list:
@ -176,7 +165,9 @@ proc detect
test al, 10b
jnz .010b
test al, 1b
jz .error
pop edx eax
jz .next
.001b:
mov [cmd], 001b
@ -247,7 +238,8 @@ end if
mov esi, msgOK
invoke SysMsgBoardStr
ret
pop edx eax
jmp .next
endp
@ -263,7 +255,7 @@ my_service db 'AGP', 0 ; max 16 chars include z
msgInit db 'AGP driver loaded.', 13, 10, 0
msgSearch db 'Searching for AGP card...', 13, 10, 0
msgFail db 'device not found', 13, 10, 0
msgDone db 'Done', 13, 10, 0
msgOK db 'AGP device enabled', 13, 10, 0
msgAGP2 db 'AGP2 device found', 13, 10, 0
msgAGP3 db 'AGP3 device found', 13, 10, 0