1 files changed, 127 insertions, 0 deletions
diff --git a/usr/include/arch/i386/sys/io.h b/usr/include/arch/i386/sys/io.h
new file mode 100644
index 0000000..cf31b97
--- /dev/null
+++ b/usr/include/arch/i386/sys/io.h
@@ -0,0 +1,127 @@
+/* ----------------------------------------------------------------------- *
+ *
+ *   Copyright 2004 H. Peter Anvin - All Rights Reserved
+ *
+ *   Permission is hereby granted, free of charge, to any person
+ *   obtaining a copy of this software and associated documentation
+ *   files (the "Software"), to deal in the Software without
+ *   restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or
+ *   sell copies of the Software, and to permit persons to whom
+ *   the Software is furnished to do so, subject to the following
+ *   conditions:
+ *
+ *   The above copyright notice and this permission notice shall
+ *   be included in all copies or substantial portions of the Software.
+ *
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *   OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * sys/io.h for the i386 architecture
+ *
+ * Basic I/O macros
+ */
+
+#ifndef _SYS_IO_H
+#define _SYS_IO_H 1
+
+/* I/O-related system calls */
+
+int iopl(int);
+int ioperm(unsigned long, unsigned long, int);
+
+/* Basic I/O macros */
+
+static __inline__ void outb(unsigned char __v, unsigned short __p)
+{
+	asm volatile ("outb %0,%1" : : "a" (__v), "dN" (__p));
+}
+
+static __inline__ void outw(unsigned short __v, unsigned short __p)
+{
+	asm volatile ("outw %0,%1" : : "a" (__v), "dN" (__p));
+}
+
+static __inline__ void outl(unsigned int __v, unsigned short __p)
+{
+	asm volatile ("outl %0,%1" : : "a" (__v), "dN" (__p));
+}
+
+static __inline__ unsigned char inb(unsigned short __p)
+{
+	unsigned char __v;
+	asm volatile ("inb %1,%0" : "=a" (__v) : "dN" (__p));
+	return __v;
+}
+
+static __inline__ unsigned short inw(unsigned short __p)
+{
+	unsigned short __v;
+	asm volatile ("inw %1,%0" : "=a" (__v) : "dN" (__p));
+	return __v;
+}
+
+static __inline__ unsigned int inl(unsigned short __p)
+{
+	unsigned int __v;
+	asm volatile ("inl %1,%0" : "=a" (__v) : "dN" (__p));
+	return __v;
+}
+
+/* String I/O macros */
+
+static __inline__ void
+outsb(unsigned short __p, const void *__d, unsigned long __n)
+{
+	asm volatile ("cld; rep; outsb"
+		      : "+S" (__d), "+c" (__n)
+		      : "d" (__p));
+}
+
+static __inline__ void
+outsw(unsigned short __p, const void *__d, unsigned long __n)
+{
+	asm volatile ("cld; rep; outsw"
+		      : "+S" (__d), "+c" (__n)
+		      : "d" (__p));
+}
+
+static __inline__ void
+outsl(unsigned short __p, const void *__d, unsigned long __n)
+{
+	asm volatile ("cld; rep; outsl"
+		      : "+S" (__d), "+c"(__n)
+		      : "d" (__p));
+}
+
+static __inline__ void insb(unsigned short __p, void *__d, unsigned long __n)
+{
+	asm volatile ("cld; rep; insb"
+		      : "+D" (__d), "+c" (__n)
+		      : "d" (__p));
+}
+
+static __inline__ void insw(unsigned short __p, void *__d, unsigned long __n)
+{
+	asm volatile ("cld; rep; insw"
+		      : "+D" (__d), "+c" (__n)
+		      : "d" (__p));
+}
+
+static __inline__ void insl(unsigned short __p, void *__d, unsigned long __n)
+{
+	asm volatile ("cld; rep; insl"
+		      : "+D" (__d), "+c" (__n)
+		      : "d" (__p));
+}
+
+#endif				/* _SYS_IO_H */