1 files changed, 73 insertions, 0 deletions
diff --git a/bsps/i386/include/i386_io.h b/bsps/i386/include/i386_io.h
new file mode 100644
index 0000000000..1308d58b6b
--- /dev/null
+++ b/bsps/i386/include/i386_io.h
@@ -0,0 +1,73 @@
+/**
+ * @file
+ * @ingroup i386_io
+ * @brief I/O
+ */
+
+/*
+ * Copyright (c) 2000 - Rosimildo da Silva.  All Rights Reserved.
+ *
+ * MODULE DESCRIPTION:
+ *
+ * IO Functions for the PC platform equivalent to DOS/Linux. They make
+ * eaiser the porting of code from these platforms.
+ *
+ *  by: Rosimildo da Silva:  rdasilva@connecttel.com
+ *
+ */
+
+/**
+ * @defgroup i386_io I/O
+ * @ingroup i386_comm
+ * @brief I/O
+ * @{
+ */
+
+#ifndef i386_io_h__
+#define i386_io_h__
+
+#define rtems_inb(port)							\
+({									\
+        register int _inb_result;					\
+							\
+        __asm__ volatile ("xorl %%eax,%%eax; inb %%dx,%%al" :		\
+            "=a" (_inb_result) : "d" (port));				\
+        _inb_result;							\
+})
+
+#define rtems_inw(port)							\
+({									\
+        register int _inbw_result;					\
+									\
+        __asm__ volatile ("xorl %%eax,%%eax; inw %%dx,%%ax" :		\
+            "=a" (_inbw_result) : "d" (port));				\
+        _inbw_result;							\
+})
+
+#define rtems_outb(port, data)						\
+        __asm__ volatile ("outb %%al,%%dx" : : "a" (data), "d" (port))
+
+#define rtems_outw(port, data)						\
+        __asm__ volatile ("outw %%ax,%%dx" : : "a" (data), "d" (port))
+
+#define outp(port, val)	rtems_outb(port,val)
+#define inp(port)	      rtems_inb(port)
+
+#define outb(val, port)	rtems_outb(port,val)
+#define inb(port)	      rtems_inb(port)
+
+#define outb_p(val, port)	rtems_outb(port,val)
+#define inb_p(port)	      rtems_inb(port)
+
+#define outportb(port,val)	rtems_outb(port,val)
+#define inportb(port)	rtems_inb(port)
+
+#define outw(val, port)	rtems_outw(port,val)
+#define inw(port)	      rtems_inw(port)
+
+#define cli()   __asm__ __volatile__("cli")
+#define sti()   __asm__ __volatile__("sti");
+
+#endif /* i386_io_h__ */
+
+/** @} */