/*

 *	The PCI Library -- Example of use (simplistic lister of PCI devices)

 *

 *	Written by Martin Mares and put to public domain. You can do

 *	with it anything you want, but I don't give you any warranty.

 */

#include <stdio.h>

#include "lib/pci.h"

int main(void)

{

  struct pci_access *pacc;

  struct pci_dev *dev;

  unsigned int c;

  char namebuf[1024], *name;

  pacc = pci_alloc();		/* Get the pci_access structure */

  /* Set all options you want -- here we stick with the defaults */

  pci_init(pacc);		/* Initialize the PCI library */

  pci_scan_bus(pacc);		/* We want to get the list of devices */

  for (dev=pacc->devices; dev; dev=dev->next)	/* Iterate over all devices */

    {

      pci_fill_info(dev, PCI_FILL_IDENT | PCI_FILL_BASES | PCI_FILL_CLASS);	/* Fill in header info we need */

      c = pci_read_byte(dev, PCI_INTERRUPT_PIN);				/* Read config register directly */

      printf("%04x:%02x:%02x.%d vendor=%04x device=%04x class=%04x irq=%d (pin %d) base0=%lx",

	     dev->domain, dev->bus, dev->dev, dev->func, dev->vendor_id, dev->device_id,

	     dev->device_class, dev->irq, c, (long) dev->base_addr[0]);

      /* Look up and print the full name of the device */

      name = pci_lookup_name(pacc, namebuf, sizeof(namebuf), PCI_LOOKUP_DEVICE, dev->vendor_id, dev->device_id);

      printf(" (%s)\n", name);

    }

  pci_cleanup(pacc);		/* Close everything */

  return 0;

}