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37 lines
1.4 KiB
C
37 lines
1.4 KiB
C
/*
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* The PCI Library -- Example of use (simplistic lister of PCI devices)
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*
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* Written by Martin Mares and put to public domain. You can do
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* with it anything you want, but I don't give you any warranty.
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*/
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#include <stdio.h>
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#include "lib/pci.h"
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int main(void)
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{
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struct pci_access *pacc;
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struct pci_dev *dev;
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unsigned int c;
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char namebuf[1024], *name;
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pacc = pci_alloc(); /* Get the pci_access structure */
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/* Set all options you want -- here we stick with the defaults */
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pci_init(pacc); /* Initialize the PCI library */
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pci_scan_bus(pacc); /* We want to get the list of devices */
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for (dev=pacc->devices; dev; dev=dev->next) /* Iterate over all devices */
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{
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pci_fill_info(dev, PCI_FILL_IDENT | PCI_FILL_BASES | PCI_FILL_CLASS); /* Fill in header info we need */
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c = pci_read_byte(dev, PCI_INTERRUPT_PIN); /* Read config register directly */
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printf("%04x:%02x:%02x.%d vendor=%04x device=%04x class=%04x irq=%d (pin %d) base0=%lx",
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dev->domain, dev->bus, dev->dev, dev->func, dev->vendor_id, dev->device_id,
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dev->device_class, dev->irq, c, (long) dev->base_addr[0]);
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/* Look up and print the full name of the device */
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name = pci_lookup_name(pacc, namebuf, sizeof(namebuf), PCI_LOOKUP_DEVICE, dev->vendor_id, dev->device_id);
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printf(" (%s)\n", name);
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}
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pci_cleanup(pacc); /* Close everything */
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return 0;
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}
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