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/*
* 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;
}