1*c2e0c6b5SAndroid Build Coastguard Worker /*
2*c2e0c6b5SAndroid Build Coastguard Worker * The PCI Library -- Example of use (simplistic lister of PCI devices)
3*c2e0c6b5SAndroid Build Coastguard Worker *
4*c2e0c6b5SAndroid Build Coastguard Worker * Written by Martin Mares and put to public domain. You can do
5*c2e0c6b5SAndroid Build Coastguard Worker * with it anything you want, but I don't give you any warranty.
6*c2e0c6b5SAndroid Build Coastguard Worker */
7*c2e0c6b5SAndroid Build Coastguard Worker
8*c2e0c6b5SAndroid Build Coastguard Worker #include <stdio.h>
9*c2e0c6b5SAndroid Build Coastguard Worker
10*c2e0c6b5SAndroid Build Coastguard Worker #include "lib/pci.h"
11*c2e0c6b5SAndroid Build Coastguard Worker
main(void)12*c2e0c6b5SAndroid Build Coastguard Worker int main(void)
13*c2e0c6b5SAndroid Build Coastguard Worker {
14*c2e0c6b5SAndroid Build Coastguard Worker struct pci_access *pacc;
15*c2e0c6b5SAndroid Build Coastguard Worker struct pci_dev *dev;
16*c2e0c6b5SAndroid Build Coastguard Worker unsigned int c;
17*c2e0c6b5SAndroid Build Coastguard Worker char namebuf[1024], *name;
18*c2e0c6b5SAndroid Build Coastguard Worker
19*c2e0c6b5SAndroid Build Coastguard Worker pacc = pci_alloc(); /* Get the pci_access structure */
20*c2e0c6b5SAndroid Build Coastguard Worker /* Set all options you want -- here we stick with the defaults */
21*c2e0c6b5SAndroid Build Coastguard Worker pci_init(pacc); /* Initialize the PCI library */
22*c2e0c6b5SAndroid Build Coastguard Worker pci_scan_bus(pacc); /* We want to get the list of devices */
23*c2e0c6b5SAndroid Build Coastguard Worker for (dev=pacc->devices; dev; dev=dev->next) /* Iterate over all devices */
24*c2e0c6b5SAndroid Build Coastguard Worker {
25*c2e0c6b5SAndroid Build Coastguard Worker pci_fill_info(dev, PCI_FILL_IDENT | PCI_FILL_BASES | PCI_FILL_CLASS); /* Fill in header info we need */
26*c2e0c6b5SAndroid Build Coastguard Worker c = pci_read_byte(dev, PCI_INTERRUPT_PIN); /* Read config register directly */
27*c2e0c6b5SAndroid Build Coastguard Worker printf("%04x:%02x:%02x.%d vendor=%04x device=%04x class=%04x irq=%d (pin %d) base0=%lx",
28*c2e0c6b5SAndroid Build Coastguard Worker dev->domain, dev->bus, dev->dev, dev->func, dev->vendor_id, dev->device_id,
29*c2e0c6b5SAndroid Build Coastguard Worker dev->device_class, dev->irq, c, (long) dev->base_addr[0]);
30*c2e0c6b5SAndroid Build Coastguard Worker
31*c2e0c6b5SAndroid Build Coastguard Worker /* Look up and print the full name of the device */
32*c2e0c6b5SAndroid Build Coastguard Worker name = pci_lookup_name(pacc, namebuf, sizeof(namebuf), PCI_LOOKUP_DEVICE, dev->vendor_id, dev->device_id);
33*c2e0c6b5SAndroid Build Coastguard Worker printf(" (%s)\n", name);
34*c2e0c6b5SAndroid Build Coastguard Worker }
35*c2e0c6b5SAndroid Build Coastguard Worker pci_cleanup(pacc); /* Close everything */
36*c2e0c6b5SAndroid Build Coastguard Worker return 0;
37*c2e0c6b5SAndroid Build Coastguard Worker }
38