lib/i386-io-sunos.h

   1 /*
   2  *      The PCI Library -- Access to i386 I/O ports on Solaris
   3  *
   4  *      Copyright (c) 2003 Bill Moore <billm@eng.sun.com>
   5  *      Copyright (c) 2003--2006 Martin Mares <mj@ucw.cz>
   6  *
   7  *      Can be freely distributed and used under the terms of the GNU GPL.
   8  */
   9
  10 #include <sys/sysi86.h>
  11 #include <sys/psw.h>
  12
  13 static int
  14 intel_setup_io(struct pci_access *a UNUSED)
  15 {
  16   return (sysi86(SI86V86, V86SC_IOPL, PS_IOPL) < 0) ? 0 : 1;
  17 }
  18
  19 static inline int
  20 intel_cleanup_io(struct pci_access *a UNUSED)
  21 {
  22   /* FIXME: How to switch off I/O port access? */
  23   return 1;
  24 }
  25
  26 static inline u8
  27 inb (u16 port)
  28 {
  29   u8 v;
  30   __asm__ __volatile__ ("inb (%w1)":"=a" (v):"Nd" (port));
  31   return v;
  32 }
  33
  34 static inline u16
  35 inw (u16 port)
  36 {
  37   u16 v;
  38   __asm__ __volatile__ ("inw (%w1)":"=a" (v):"Nd" (port));
  39   return v;
  40 }
  41
  42 static inline u32
  43 inl (u16 port)
  44 {
  45   u32 v;
  46   __asm__ __volatile__ ("inl (%w1)":"=a" (v):"Nd" (port));
  47   return v;
  48 }
  49
  50 static inline void
  51 outb (u8 value, u16 port)
  52 {
  53   __asm__ __volatile__ ("outb (%w1)": :"a" (value), "Nd" (port));
  54 }
  55
  56 static inline void
  57 outw (u16 value, u16 port)
  58 {
  59   __asm__ __volatile__ ("outw (%w1)": :"a" (value), "Nd" (port));
  60 }
  61
  62 static inline void
  63 outl (u32 value, u16 port)
  64 {
  65   __asm__ __volatile__ ("outl (%w1)": :"a" (value), "Nd" (port));
  66 }
  67
  68 static inline void intel_io_lock(void)
  69 {
  70 }
  71
  72 static inline void intel_io_unlock(void)
  73 {
  74 }