ace-dent/kolibrios-gitea
1
0
Fork 0
forked from KolibriOS/kolibrios
Code Pull Requests Activity

fixed find_mmio32 in pci.inc

Browse Source 
git-svn-id: svn://kolibrios.org@2922 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
hidnplayr 2012-08-15 10:50:36 +00:00
parent 85ca6be824
commit 70c292f418
1 changed files with 17 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
kernel/branches/net/drivers/bus/pci.inc
View File

@ -50,40 +50,44 @@ macro find_io bus, dev, io {
jz .inc
and eax, PCI_BASE_ADDRESS_IO_MASK
mov io , eax
jmp .got
.inc:
add esi, 4
cmp esi, PCI_BASE_ADDRESS_5
jle .check
jbe .check
xor eax, eax
.got:
mov io, eax
}
macro find_mmio32 bus, dev, mmio32 {
macro find_mmio32 bus, dev, io {
local .check, .got
local .check, .inc, .got
xor eax, eax
mov esi, PCI_BASE_ADDRESS_0
movzx ecx, bus
movzx edx, dev
.check:
stdcall PciRead32, ecx ,edx ,esi
stdcall PciRead32, bus, dev, esi
test eax, not PCI_BASE_ADDRESS_IO_MASK
jz .got
test eax, PCI_BASE_ADDRESS_SPACE_IO ; mmio address?
jnz .inc
test eax, 100b ; 64 bit?
jnz .inc
and eax, not 1111b
jmp .got
.inc:
add esi, 4
cmp esi, PCI_BASE_ADDRESS_5
jle .check
jbe .check
xor eax, eax
.got:
mov mmio32, eax
mov io, eax
}