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#include "pci/pci.h"
#include <string.h>
TYPE BWL(pci_read) (pciaddr_t a) {
TYPE r;
for (;;) {
switch (__pci_cfg_type) {
case PCI_CFG_AUTO:
pci_set_config_type(PCI_CFG_AUTO);
break; /* Try again */
case PCI_CFG_TYPE1:
{
uint32_t oldcf8;
cli();
oldcf8 = inl(0xcf8);
outl(a, 0xcf8);
r = BWL(in) (0xcfc + (a & 3));
outl(oldcf8, 0xcf8);
sti();
}
return r;
case PCI_CFG_TYPE2:
{
uint8_t oldcf8, oldcfa;
if (a & (0x10 << 11))
return (TYPE) ~ 0; /* Device 16-31 not supported */
cli();
oldcf8 = inb(0xcf8);
oldcfa = inb(0xcfa);
outb(0xf0 + ((a >> (8 - 1)) & 0x0e), 0xcf8);
outb(a >> 16, 0xcfa);
r = BWL(in) (0xc000 + ((a >> (11 - 8)) & 0xf00) + (a & 0xff));
outb(oldcf8, 0xcf8);
outb(oldcfa, 0xcfa);
sti();
}
return r;
case PCI_CFG_BIOS:
return (TYPE) __pci_read_bios(BIOSCALL, a);
default:
return (TYPE) ~ 0;
}
}
}
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