minix/lib/libsys/pci_attr_w16.c

   1 /*
   2 pci_attr_w16.c
   3 */
   4
   5 #include "pci.h"
   6 #include "syslib.h"
   7 #include <minix/sysutil.h>
   8
   9 /*===========================================================================*
  10  *                              pci_attr_w16                                 *
  11  *===========================================================================*/
  12 void pci_attr_w16(int devind, int port, u16_t value)
  13 {
  14         int r;
  15         message m;
  16
  17         m.m_type= BUSC_PCI_ATTR_W16;
  18         m.m2_i1= devind;
  19         m.m2_i2= port;
  20         m.m2_l1= value;
  21
  22         r= ipc_sendrec(pci_procnr, &m);
  23         if (r != 0)
  24                 panic("pci_attr_w16: can't talk to PCI: %d", r);
  25
  26         if (m.m_type != 0)
  27                 panic("pci_attr_w16: got bad reply from PCI: %d", m.m_type);
  28 }
  29