arch/all-pc/hidds/pcipc/pciconf1.c

   1 /*
   2     Copyright © 2004-2017, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: PCI configuration mechanism 1 access functions
   6     Lang: English
   7 */
   8
   9 #include <asm/io.h>
  10 #include <proto/exec.h>
  11
  12 #include "pci.h"
  13
  14 #define CFGADD(bus,dev,func,reg)    \
  15     ( 0x80000000 | ((bus)<<16) |    \
  16     ((dev)<<11) | ((func)<<8) | ((reg)&~3))
  17
  18 ULONG ReadConfig1Long(UBYTE bus, UBYTE dev, UBYTE sub, UWORD reg)
  19 {
  20     ULONG temp;
  21
  22     Disable();
  23     outl(CFGADD(bus, dev, sub, reg),PCI_AddressPort);
  24     temp=inl(PCI_DataPort);
  25     Enable();
  26
  27     return temp;
  28 }
  29
  30 void WriteConfig1Long(UBYTE bus, UBYTE dev, UBYTE sub, UWORD reg, ULONG val)
  31 {
  32     Disable();
  33
  34     outl(CFGADD(bus, dev, sub, reg),PCI_AddressPort);
  35     outl(val,PCI_DataPort);
  36
  37     Enable();
  38 }