Staging: comedi: add rti800 driver

for Analog Devices RTI-800/815 devices

From: David Schleef <ds@schleef.org>
Cc: Frank Mori Hess <fmhess@users.sourceforge.net>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/comedi/drivers/am9513.h

+/*
+    module/am9513.h
+    value added preprocessor definitions for Am9513 timer chip
+
+    COMEDI - Linux Control and Measurement Device Interface
+    Copyright (C) 1998 David A. Schleef <ds@schleef.org>
+
+    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.
+
+*/
+
+#ifndef _AM9513_H_
+#define _AM9513_H_
+
+#if 0
+
+/*
+ *	Before including this file, the following need to be defined:
+ */
+#define Am9513_8BITBUS xxx
+/* or */
+#define Am9513_16BITBUS xxx
+
+#define Am9513_output_control(a)	xxx
+#define Am9513_input_status()		xxx
+#define Am9513_output_data(a)		xxx
+#define Am9513_input_data()		xxx
+
+#endif
+
+/*
+ *
+ */
+
+#ifdef Am9513_8BITBUS
+
+#define Am9513_write_register(reg,val)				\
+	do{							\
+		Am9513_output_control(reg);			\
+		Am9513_output_data(val>>8);			\
+		Am9513_output_data(val&0xff);			\
+	}while(0)
+
+#define Am9513_read_register(reg,val)				\
+	do{							\
+		Am9513_output_control(reg);			\
+		val=Am9513_input_data()<<8;			\
+		val|=Am9513_input_data();			\
+	}while(0)
+
+#else /* Am9513_16BITBUS */
+
+#define Am9513_write_register(reg,val)				\
+	do{							\
+		Am9513_output_control(reg);			\
+		Am9513_output_data(val);			\
+	}while(0)
+
+#define Am9513_read_register(reg,val)				\
+	do{							\
+		Am9513_output_control(reg);			\
+		val=Am9513_input_data();			\
+	}while(0)
+
+#endif
+
+#endif