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  1. /*
  2.  * HelenOS PCI driver.
  3.  *
  4.  * Copyright (C) 1997-2003 Martin Mares
  5.  * Copyright (C) 2006 Jakub Jermar
  6.  *
  7.  * (Based on libpci example.c written by Martin Mares.)
  8.  *
  9.  * Can be freely distributed and used under the terms of the GNU GPL.
  10.  */
  11.  
  12. #include <stdio.h>
  13. #include <ddi.h>
  14. #include <task.h>
  15. #include <stdlib.h>
  16.  
  17. #include "libpci/pci.h"
  18.  
  19. #define PCI_CONF1   0xcf8
  20. #define PCI_CONF1_SIZE  8
  21.  
  22. int main(int argc, char *argv[])
  23. {
  24.     struct pci_access *pacc;
  25.     struct pci_dev *dev;
  26.     unsigned int c;
  27.     char buf[80];
  28.  
  29.     printf("HelenOS PCI driver\n");
  30.  
  31.     /*
  32.      * Gain control over PCI configuration ports.
  33.      */
  34.     iospace_enable(task_get_id(), (void *) PCI_CONF1, PCI_CONF1_SIZE);
  35.  
  36.     pacc = pci_alloc();           /* Get the pci_access structure */
  37.     pci_init(pacc);               /* Initialize the PCI library */
  38.     pci_scan_bus(pacc);           /* We want to get the list of devices */
  39.     for(dev=pacc->devices; dev; dev=dev->next) {   /* Iterate over all devices */
  40.         pci_fill_info(dev, PCI_FILL_IDENT | PCI_FILL_BASES);      /* Fill in header info we need */
  41.         c = pci_read_word(dev, PCI_CLASS_DEVICE); /* Read config register directly */
  42.         printf("%02x:%02x.%d vendor=%04x device=%04x class=%04x irq=%d base0=%lx\n",
  43.             dev->bus, dev->dev, dev->func, dev->vendor_id, dev->device_id,
  44.             c, dev->irq, dev->base_addr[0]);
  45.         printf("\t%s\n", pci_lookup_name(pacc, buf, sizeof(buf), PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
  46.             dev->vendor_id, dev->device_id));
  47.     }
  48.     pci_cleanup(pacc);            /* Close everything */
  49.  
  50.     return 0;
  51. }
  52.