/**
* pciinfo() - Show a list of devices on the PCI bus
*
* Show information about devices on PCI bus. Depending on @short_pci_listing
* the output will be more or less exhaustive.
*
* @bus_num: The number of the bus to be scanned
* @short_pci_listing: true to use short form, showing only a brief header
* for each device
*/
void pciinfo(int bus_num, int short_pci_listing)
{
struct pci_controller *hose = pci_bus_to_hose(bus_num);
int device;
int function;
unsigned char header_type;
unsigned short vendor_id;
pci_dev_t dev;
int ret;
if (!hose)
return;
pciinfo_header(bus_num, short_pci_listing);
for (device = 0; device < PCI_MAX_PCI_DEVICES; device++) {
header_type = 0;
vendor_id = 0;
for (function = 0; function < PCI_MAX_PCI_FUNCTIONS;
function++) {
/*
* If this is not a multi-function device, we skip
* the rest.
*/
if (function && !(header_type & 0x80))
break;
dev = PCI_BDF(bus_num, device, function);
if (pci_skip_dev(hose, dev))
continue;
ret = pci_read_config_word(dev, PCI_VENDOR_ID,
&vendor_id);
if (ret)
goto error;
if ((vendor_id == 0xFFFF) || (vendor_id == 0x0000))
continue;
if (!function) {
pci_read_config_byte(dev, PCI_HEADER_TYPE,
&header_type);
}
if (short_pci_listing) {
printf("%02x.%02x.%02x ", bus_num, device,
function);
pci_header_show_brief(dev);
} else {
printf("\nFound PCI device %02x.%02x.%02x:\n",
bus_num, device, function);
pci_header_show(dev);
}
}
}
return;
error:
printf("Cannot read bus configuration: %d\n", ret);
}
/*
* Subroutine: pciinfo
*
* Description: Show information about devices on PCI bus.
* Depending on the define CONFIG_SYS_SHORT_PCI_LISTING
* the output will be more or less exhaustive.
*
* Inputs: bus_no the number of the bus to be scanned.
*
* Return: None
*
*/
void pciinfo(int BusNum, int ShortPCIListing)
{
struct pci_controller *hose = pci_bus_to_hose(BusNum);
int Device;
int Function;
unsigned char HeaderType;
unsigned short VendorID;
pci_dev_t dev;
int ret;
if (!hose)
return;
printf("Scanning PCI devices on bus %d\n", BusNum);
if (ShortPCIListing) {
printf("BusDevFun VendorId DeviceId Device Class Sub-Class\n");
printf("_____________________________________________________________\n");
}
for (Device = 0; Device < PCI_MAX_PCI_DEVICES; Device++) {
HeaderType = 0;
VendorID = 0;
for (Function = 0; Function < PCI_MAX_PCI_FUNCTIONS; Function++) {
/*
* If this is not a multi-function device, we skip the rest.
*/
if (Function && !(HeaderType & 0x80))
break;
dev = PCI_BDF(BusNum, Device, Function);
if (pci_skip_dev(hose, dev))
continue;
ret = pci_read_config_word(dev, PCI_VENDOR_ID,
&VendorID);
if (ret)
goto error;
if ((VendorID == 0xFFFF) || (VendorID == 0x0000))
continue;
if (!Function) pci_read_config_byte(dev, PCI_HEADER_TYPE, &HeaderType);
if (ShortPCIListing)
{
printf("%02x.%02x.%02x ", BusNum, Device, Function);
pci_header_show_brief(dev);
}
else
{
printf("\nFound PCI device %02x.%02x.%02x:\n",
BusNum, Device, Function);
pci_header_show(dev);
}
}
}
return;
error:
printf("Cannot read bus configuration: %d\n", ret);
}
