minix/lib/libsys/pci_attr_r16.c

   1 /*
   2 pci_attr_r16.c
   3 */
   4
   5 #include "pci.h"
   6 #include "syslib.h"
   7 #include <minix/sysutil.h>
   8
   9 /*===========================================================================*
  10  *                              pci_attr_r16                                 *
  11  *===========================================================================*/
  12 u16_t pci_attr_r16(devind, port)
  13 int devind;
  14 int port;
  15 {
  16         int r;
  17         message m;
  18
  19         m.m_type= BUSC_PCI_ATTR_R16;
  20         m.m2_i1= devind;
  21         m.m2_i2= port;
  22
  23         r= ipc_sendrec(pci_procnr, &m);
  24         if (r != 0)
  25                 panic("pci_attr_r16: can't talk to PCI: %d", r);
  26
  27         if (m.m_type != 0)
  28                 panic("pci_attr_r16: got bad reply from PCI: %d", m.m_type);
  29
  30         return m.m2_l1;
  31 }
  32