|
Last change
on this file since 26ffad7 was
e16e8f2,
checked in by Edwin Eefting <edwin@datux.nl>, 3 years ago
|
|
bootstuff
|
-
Property mode set to
100644
|
|
File size:
449 bytes
|
| Line | |
|---|
| 1 | #include <com32.h> |
|---|
| 2 | #include <string.h> |
|---|
| 3 | #include "pci/pci.h" |
|---|
| 4 | |
|---|
| 5 | uint32_t __pci_read_write_bios(uint32_t call, uint32_t v, pciaddr_t a) |
|---|
| 6 | { |
|---|
| 7 | com32sys_t rs; |
|---|
| 8 | memset(&rs, 0, sizeof rs); |
|---|
| 9 | rs.eax.w[0] = call; |
|---|
| 10 | rs.ebx.w[0] = a >> 8; /* bus:device:function */ |
|---|
| 11 | rs.edi.b[0] = a; /* address:reg */ |
|---|
| 12 | rs.ecx.l = v; |
|---|
| 13 | rs.eflags.l = EFLAGS_CF; |
|---|
| 14 | __intcall(0x1a, &rs, &rs); |
|---|
| 15 | |
|---|
| 16 | return (rs.eflags.l & EFLAGS_CF) ? ~(uint32_t) 0 : rs.ecx.l; |
|---|
| 17 | } |
|---|
Note: See
TracBrowser
for help on using the repository browser.
