summaryrefslogtreecommitdiffstats
path: root/mdk-stage1/probing.c
diff options
context:
space:
mode:
Diffstat (limited to 'mdk-stage1/probing.c')
-rw-r--r--mdk-stage1/probing.c92
1 files changed, 61 insertions, 31 deletions
diff --git a/mdk-stage1/probing.c b/mdk-stage1/probing.c
index 0a18f0233..8167e0b9d 100644
--- a/mdk-stage1/probing.c
+++ b/mdk-stage1/probing.c
@@ -40,6 +40,7 @@
#include <net/if.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
+#include <pci/pci.h>
#include "stage1.h"
#include "log.h"
@@ -223,51 +224,80 @@ void probe_that_type(enum driver_type type, enum media_bus bus __attribute__ ((u
while (1) {
unsigned int i;
- unsigned short vendor, device, subvendor, subdevice, devbusfn;
- subvendor = 0xFFFF;
+ unsigned short vendor, device, subvendor, subdevice, class_, class_prog, devbusfn;
+ const char *name, *module;
if (!fgets(buf, sizeof(buf), f)) break;
-
+
sscanf(buf, "%hx %x", &devbusfn, &i);
device = i;
vendor = i >> 16;
-
+
+ {
+ int bus = devbusfn >> 8;
+ int device_p = (devbusfn & 0xff) >> 3;
+ int function = (devbusfn & 0xff) & 0x07;
+ char file[100];
+ int sf;
+ sprintf(file, "/proc/bus/pci/%02x/%02x.%d", bus, device_p, function);
+ if ((sf = open(file, O_RDONLY)) == -1) {
+ log_message("PCI: could not open file for full probe (%s)", file);
+ continue;
+ }
+ if (read(sf, buf, 48) == -1) {
+ log_message("PCI: could not read 48 bytes from %s", file);
+ close(sf);
+ continue;
+ }
+ close(sf);
+ memcpy(&class_prog, buf+9, 1);
+ memcpy(&class_, buf+10, 2);
+ memcpy(&subvendor, buf+44, 2);
+ memcpy(&subdevice, buf+46, 2);
+ }
+
+ /* special rules below must be in sync with ldetect/pci.c */
+
+ if (class_ == PCI_CLASS_SERIAL_USB) {
+ /* taken from kudzu's pci.c */
+ module =
+ class_prog == 0 ? "usb-uhci" :
+ class_prog == 0x10 ? "usb-ohci" :
+ class_prog == 0x20 ? "ehci-hcd" : NULL;
+ if (module) {
+ name = "USB Controller";
+ goto found_pci_device;
+ }
+ }
+ if (class_ == PCI_CLASS_SERIAL_FIREWIRE) {
+ /* taken from kudzu's pci.c */
+ if (class_prog == 0x10) {
+ module = strdup("ohci1394");
+ name = "Firewire Controller";
+ goto found_pci_device;
+ }
+ }
+
for (i = 0; i < len_full; i++)
if (pcidb_full[i].vendor == vendor && pcidb_full[i].device == device) {
- if (subvendor == 0xFFFF) {
- int bus = devbusfn >> 8;
- int device_p = (devbusfn & 0xff) >> 3;
- int function = (devbusfn & 0xff) & 0x07;
- char file[100];
- int sf;
- log_message("PCI: device %04x %04x needs full pci probe", vendor, device);
- sprintf(file, "/proc/bus/pci/%02x/%02x.%d", bus, device_p, function);
- if ((sf = open(file, O_RDONLY)) == -1) {
- log_message("PCI: could not open file for full probe (%s)", file);
- continue;
- }
- if (read(sf, buf, 48) == -1) {
- log_message("PCI: could not read 48 bytes from %s", file);
- close(sf);
- continue;
- }
- close(sf);
- memcpy(&subvendor, buf+44, 2);
- memcpy(&subdevice, buf+46, 2);
- log_message("PCI: device is actually %04x %04x %04x %04x", vendor, device, subvendor, subdevice);
- }
if (pcidb_full[i].subvendor == subvendor && pcidb_full[i].subdevice == subdevice) {
- discovered_device(type, vendor, device, subvendor, subdevice, pcidb_full[i].name, pcidb_full[i].module);
- goto next_pci_device;
+ name = pcidb_full[i].name;
+ module = pcidb_full[i].module;
+ goto found_pci_device;
}
}
for (i = 0; i < len; i++)
if (pcidb[i].vendor == vendor && pcidb[i].device == device) {
- discovered_device(type, vendor, device, 0xFFFF, 0xFFFF, pcidb[i].name, pcidb[i].module);
- goto next_pci_device;
+ name = pcidb[i].name;
+ module = pcidb[i].module;
+ goto found_pci_device;
}
- next_pci_device:;
+
+ continue;
+
+ found_pci_device:
+ discovered_device(type, vendor, device, subvendor, subdevice, name, module);
}
end_pci_probe:;
if (f)