--- /dev/null
+/*
+ * The PCI Library -- Access to i386 I/O ports on GNU Hurd
+ *
+ * Copyright (c) 2003 Marco Gerards <metgerards@student.han.nl>
+ * Copyright (c) 2003 Martin Mares <mj@ucw.cz>
+ *
+ * Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+#include <sys/io.h>
+
+static inline int
+intel_setup_io(void)
+{
+ return 1;
+}
+
+static inline int
+intel_cleanup_io(void)
+{
+}
--- /dev/null
+/*
+ * The PCI Library -- Access to i386 I/O ports on Linux
+ *
+ * Copyright (c) 1997--2003 Martin Mares <mj@ucw.cz>
+ *
+ * Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+#ifdef __GLIBC__
+#include <sys/io.h>
+#else
+#include <asm/io.h>
+#endif
+
+static int intel_iopl_set = -1;
+
+static int
+intel_setup_io(void)
+{
+ if (intel_iopl_set < 0)
+ intel_iopl_set = (iopl(3) < 0) ? 0 : 1;
+ return intel_iopl_set;
+}
+
+static inline void
+intel_cleanup_io(void)
+{
+ if (intel_iopl_set > 0)
+ iopl(3);
+ intel_iopl_set = -1;
+}
--- /dev/null
+/*
+ * The PCI Library -- Access to i386 I/O ports on Solaris
+ *
+ * Copyright (c) 2003 Bill Moore <billm@eng.sun.com>
+ * Copyright (c) 2003 Martin Mares <mj@ucw.cz>
+ *
+ * Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+#include <sys/sysi86.h>
+#include <sys/psw.h>
+
+static int intel_iopl_set = -1;
+
+static int
+intel_setup_io(void)
+{
+ if (intel_iopl_set < 0)
+ {
+ if (sysi86(SI86V86, V86SC_IOPL, PS_IOPL) < 0)
+ intel_iopl_set = 0;
+ else
+ intel_iopl_set = 1;
+ }
+ return intel_iopl_set;
+}
+
+static inline void
+intel_cleanup_io(void)
+{
+ if (intel_iopl_set > 0)
+ {
+ /* FIXME: How to switch off I/O port access? */
+ }
+ intel_iopl_set = -1;
+}
+
+static inline u8
+inb (u16 port)
+{
+ u8 v;
+ __asm__ __volatile__ ("inb (%w1)":"=a" (v):"Nd" (port));
+ return v;
+}
+
+static inline u16
+inw (u16 port)
+{
+ u16 v;
+ __asm__ __volatile__ ("inw (%w1)":"=a" (v):"Nd" (port));
+ return v;
+}
+
+static inline u32
+inl (u16 port)
+{
+ u32 v;
+ __asm__ __volatile__ ("inl (%w1)":"=a" (v):"Nd" (port));
+ return v;
+}
+
+static inline void
+outb (u8 value, u16 port)
+{
+ __asm__ __volatile__ ("outb (%w1)": :"a" (value), "Nd" (port));
+}
+
+static inline void
+outw (u16 value, u16 port)
+{
+ __asm__ __volatile__ ("outw (%w1)": :"a" (value), "Nd" (port));
+}
+
+static inline void
+outl (u32 value, u16 port)
+{
+ __asm__ __volatile__ ("outl (%w1)": :"a" (value), "Nd" (port));
+}