lib/libsys/pci_init1.c

   1 /*
   2 pci_init1.c
   3 */
   4
   5 #include "pci.h"
   6 #include "syslib.h"
   7 #include <string.h>
   8 #include <unistd.h>
   9 #include <minix/ds.h>
  10 #include <minix/sysutil.h>
  11
  12 int pci_procnr= ANY;
  13
  14 /*===========================================================================*
  15  *                              pci_init1                                    *
  16  *===========================================================================*/
  17 PUBLIC void pci_init1(name)
  18 char *name;
  19 {
  20         int r;
  21         u32_t u32;
  22         size_t len;
  23         message m;
  24
  25         r= ds_retrieve_label_num("pci", &u32);
  26         if (r != 0)
  27                 panic("pci_init1: ds_retrieve_label_num failed for 'pci': %d", r);
  28         pci_procnr= u32;
  29
  30         m.m_type= BUSC_PCI_INIT;
  31         len= strlen(name);
  32         if (len+1 <= sizeof(m.m3_ca1))
  33                 strcpy(m.m3_ca1, name);
  34         else
  35         {
  36                 len= sizeof(m.m3_ca1)-1;
  37                 memcpy(m.m3_ca1, name, len);
  38                 m.m3_ca1[len]= '\0';
  39         }
  40         r= sendrec(pci_procnr, &m);
  41         if (r != 0)
  42                 panic("pci_init1: can't talk to PCI: %d", r);
  43         if (m.m_type != 0)
  44                 panic("pci_init1: got bad reply from PCI: %d", m.m_type);
  45 }
  46