/**
* @file
*
* I think this file could be made generic and put in a general pci
* area.
*/
/*
* COPYRIGHT (c) 1989-2012.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
/*
* List all PCI Devices
*/
#define PCI_DEBUG
#include <inttypes.h>
#include <bsp/pci.h>
#include <rtems/bspIo.h>
#include <stdio.h>
/*
* Make device signature from bus number, device number and function
* number
*/
#define PCIB_DEVSIG_MAKE(b,d,f) ((b<<8)|(d<<3)|(f))
/*
* Extract various parts from device signature
*/
#define PCIB_DEVSIG_BUS(x) (((x)>>8) &0xff)
#define PCIB_DEVSIG_DEV(x) (((x)>>3) & 0x1f)
#define PCIB_DEVSIG_FUNC(x) ((x) & 0x7)
static int print_device_config(
int bus,
int dev,
int fun
)
{
uint16_t vi,di;
uint16_t cd,st;
uint32_t b1,b2;
uint8_t il,ip;
pci_read_config_word (bus, dev, fun, PCI_VENDOR_ID, &vi);
pci_read_config_word (bus, dev, fun, PCI_DEVICE_ID, &di);
pci_read_config_word (bus, dev, fun, PCI_COMMAND, &cd);
pci_read_config_word (bus, dev, fun, PCI_STATUS, &st);
pci_read_config_dword(bus, dev, fun, PCI_BASE_ADDRESS_0, &b1);
pci_read_config_dword(bus, dev, fun, PCI_BASE_ADDRESS_1, &b2);
pci_read_config_byte (bus, dev, fun, PCI_INTERRUPT_LINE, &il);
pci_read_config_byte (bus, dev, fun, PCI_INTERRUPT_PIN, &ip);
printk(
"%3d:0x%02x:%d 0x%04x-0x%04x: 0x%04x 0x%04x 0x%08" PRIx32
" 0x%08" PRIx32 " %d -> %3d (=0x%02x)\n",
bus, dev, fun, vi, di, cd, st, b1, b2, ip, il, il);
return 0;
}
void pci_list_devices( void )
{
uint32_t d;
unsigned char bus,dev,fun,hd;
printk(
"BUS:SLOT:FUN VENDOR-DEV_ID: COMMAND STATUS BASE_ADDR0 "
"BASE_ADDR1 IRQ_PIN -> IRQ_LINE\n"
);
for (bus=0 ; bus<pci_bus_count(); bus++) {
for (dev=0 ; dev<PCI_MAX_DEVICES; dev++) {
for (fun=0 ; fun<PCI_MAX_FUNCTIONS; fun++) {
/*
* The last devfn id/slot is special; must skip it
*/
if (PCI_MAX_DEVICES-1==dev && PCI_MAX_FUNCTIONS-1 == fun)
break;
(void) pci_read_config_dword(bus,dev,0,PCI_VENDOR_ID,&d);
if (PCI_INVALID_VENDORDEVICEID == d)
continue;
if ( 0 == fun ) {
pci_read_config_byte(bus,dev,0, PCI_HEADER_TYPE, &hd);
hd = (hd & PCI_HEADER_TYPE_MULTI_FUNCTION ? PCI_MAX_FUNCTIONS : 1);
}
(void)pci_read_config_dword(bus,dev,fun,PCI_VENDOR_ID,&d);
if (PCI_INVALID_VENDORDEVICEID == d)
continue;
print_device_config( bus, dev, fun );
}
}
}
}