/*
* Scan all PCI buses, devices and device functions until
* required device is found. Return base address of a first entry.
*/
u_int16_t
pci_bus_locate(struct pci_dev_t *card) {
struct pci_entry_t e;
u_int32_t data;
for (e.bus = 0; e.bus <= PCI_MAX_BUS; e.bus++) {
for (e.dev = 0; e.dev <= PCI_MAX_DEV; e.dev++) {
for (e.fun = 0; e.fun <= PCI_MAX_FUN; e.fun++) {
if (pci_device_match(&e, card)) {
data = pci_base_addr(&e);
/* We don't need mem address */
if (PCI_BASEADDR_IO_TYPE & data)
return PCI_BASEADDR(data);
}
}
}
}
return 0u;
}
struct acpi_drhd_u * matched_drhd_u(u8 bus, u8 devfn)
{
struct acpi_drhd_u *drhd;
struct acpi_drhd_u *include_pci_all_drhd;
include_pci_all_drhd = NULL;
LIST_FOREACH(drhd_list, drhd) {
if (drhd->include_pci_all) {
include_pci_all_drhd = drhd;
continue;
}
if (pci_device_match(drhd->devices, drhd->devices_cnt, bus, devfn)) {
return drhd;
}
}
if (include_pci_all_drhd) {
return include_pci_all_drhd;
}
return NULL;
}
