1 files changed, 63 insertions, 0 deletions
diff --git a/drivers/char/rio/riscos.h b/drivers/char/rio/riscos.h
new file mode 100644
index 000000000000..7685cc1d9e7b
--- /dev/null
+++ b/drivers/char/rio/riscos.h
@@ -0,0 +1,63 @@
+/*
+** -----------------------------------------------------------------------------
+**
+**  Perle Specialix driver for Linux
+**  Ported from existing RIO Driver for SCO sources.
+ *
+ *  (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
+ *
+ *      This program is free software; you can redistribute it and/or modify
+ *      it under the terms of the GNU General Public License as published by
+ *      the Free Software Foundation; either version 2 of the License, or
+ *      (at your option) any later version.
+ *
+ *      This program is distributed in the hope that it will be useful,
+ *      but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *      GNU General Public License for more details.
+ *
+ *      You should have received a copy of the GNU General Public License
+ *      along with this program; if not, write to the Free Software
+ *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+**
+**	Module		: riscos.h
+**	SID		: 1.2
+**	Last Modified	: 11/6/98 11:34:19
+**	Retrieved	: 11/6/98 11:34:22
+**
+**  ident @(#)riscos.h	1.2
+**
+** -----------------------------------------------------------------------------
+*/
+
+#ifndef __rio_riscos_h__
+#define __rio_riscos_h__
+
+#ifdef SCCS_LABELS
+static char *_riscos_h_sccs_ = "@(#)riscos.h	1.2";
+#endif
+
+/*
+** This module used to define all those little itsy bits required for RISC/OS
+** now it's full of null macros.
+*/
+
+/*
+**	RBYTE reads a byte from a location.
+**	RWORD reads a word from a location.
+**	WBYTE writes a byte to a location.
+**	WWORD writes a word to a location.
+**	RINDW reads a word through a pointer.
+**	WINDW writes a word through a pointer.
+**	RIOSWAB swaps the two bytes of a word, if needed.
+*/
+
+#define	RIOSWAB(N)      (N)
+#define	WBYTE(A,V)	(A)=(uchar)(V)
+#define WWORD(A,V)	(A)=(ushort)(V)
+#define RBYTE(A)	(uchar)(A)
+#define RWORD(A)	(ushort)(A)
+#define RINDW(A)	(*(ushort *)(A))
+#define WINDW(A,V)	(*(ushort *)(A)=(ushort)(V))
+
+#endif /* __rio_riscos_h__ */