X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Fpci.c;h=0813ba7fc9e595c214db4e0286ccafa11be10ef0;hb=3cb6f9dad7e37db865bd3cbccf0b5d6471fdd73f;hp=c5cd65e38680123ebe480e2bd04a34ec4c6e24d0;hpb=91253d061647c194cdc8c16c9ae85eccdf942139;p=bootcensus diff --git a/src/pci.c b/src/pci.c index c5cd65e..0813ba7 100644 --- a/src/pci.c +++ b/src/pci.c @@ -19,6 +19,7 @@ along with this program. If not, see . #include #include #include "pci.h" +#include "intr.h" #include "int86.h" #include "asmops.h" #include "panic.h" @@ -69,12 +70,18 @@ static uint32_t (*cfg_read32)(int, int, int, int); void init_pci(void) { int i, count = 0; + int intrflag; struct int86regs regs; + intrflag = get_intr_flag(); + memset(®s, 0, sizeof regs); regs.eax = 0xb101; int86(0x1a, ®s); + /* restore interrupt state in case bios changed it */ + set_intr_flag(intrflag); + /* PCI BIOS present if CF=0, AH=0, and EDX has the "PCI " sig FOURCC */ if((regs.flags & FLAGS_CARRY) || (regs.eax & 0xff00) || regs.edx != PCI_SIG) { printf("No PCI BIOS present\n"); @@ -96,7 +103,7 @@ void init_pci(void) for(i=0; i<256; i++) { count += enum_bus(i); } - printf("found %d PCI devices\n", count); + printf("found %d PCI devices\n\n", count); } static int enum_bus(int busid)