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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. /**
  13.  * @addtogroup pci
  14.  * @{
  15.  */
  16.  
  17. #include <stdio.h>
  18. #include <ddi.h>
  19. #include <task.h>
  20. #include <stdlib.h>
  21. #include <ipc/ipc.h>
  22. #include <ipc/services.h>
  23. #include <errno.h>
  24.  
  25. #include "libpci/pci.h"
  26.  
  27. #define PCI_CONF1   0xcf8
  28. #define PCI_CONF1_SIZE  8
  29.  
  30. #define NAME        "PCI"
  31.  
  32. static struct pci_access *pacc;
  33.  
  34. int main(int argc, char *argv[])
  35. {
  36.     struct pci_dev *dev;
  37.     unsigned int c;
  38.     char buf[80];
  39.     ipcarg_t ns_in_phone_hash;
  40.  
  41.     printf("%s: HelenOS PCI driver\n", NAME);
  42.  
  43.     /*
  44.      * Gain control over PCI configuration ports.
  45.      */
  46.     iospace_enable(task_get_id(), (void *) PCI_CONF1, PCI_CONF1_SIZE);
  47.  
  48.     pacc = pci_alloc();           /* Get the pci_access structure */
  49.     pci_init(pacc);               /* Initialize the PCI library */
  50.     pci_scan_bus(pacc);           /* We want to get the list of devices */
  51.     for(dev=pacc->devices; dev; dev=dev->next) {   /* Iterate over all devices */
  52.         pci_fill_info(dev, PCI_FILL_IDENT | PCI_FILL_BASES | PCI_FILL_IRQ);
  53.         c = pci_read_word(dev, PCI_CLASS_DEVICE); /* Read config register directly */
  54.         printf("%02x:%02x.%d vendor=%04x device=%04x class=%04x irq=%d base0=%lx\n",
  55.             dev->bus, dev->dev, dev->func, dev->vendor_id, dev->device_id,
  56.             c, dev->irq, dev->base_addr[0]);
  57.         printf("\t%s\n", pci_lookup_name(pacc, buf, sizeof(buf), PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
  58.             dev->vendor_id, dev->device_id));
  59.     }
  60.  
  61.     printf("%s: registering at naming service.\n", NAME);
  62.     if (ipc_connect_to_me(PHONE_NS, SERVICE_PCI, 0, &ns_in_phone_hash) != 0) {
  63.         printf("Failed to register %s at naming service.\n", NAME);
  64.         return -1;
  65.     }
  66.  
  67.     printf("%s: accepting connections\n", NAME);
  68.     while (1) {    
  69.         ipc_call_t call;
  70.         ipc_callid_t callid;
  71.  
  72.         callid = ipc_wait_for_call(&call);
  73.         switch(IPC_GET_METHOD(call)) {
  74.         case IPC_M_CONNECT_ME_TO:
  75.             IPC_SET_RETVAL(call, 0);
  76.             break;
  77.         }
  78.         if (! (callid & IPC_CALLID_NOTIFICATION)) {
  79.             ipc_answer(callid, &call);
  80.         }
  81.         printf("%s: received call from %lX\n", NAME, call.in_phone_hash);
  82.     }
  83.  
  84.     pci_cleanup(pacc);
  85.     return 0;
  86. }
  87.  
  88. /**
  89.  * @}
  90.  */
  91.