Merge branch 'omap-pool'

[linux-2.6-omap-h63xx.git] / drivers / staging / comedi / drivers / am9513.h

diff --git a/drivers/staging/comedi/drivers/am9513.h b/drivers/staging/comedi/drivers/am9513.h
new file mode 100644 (file)
index 0000000..f533cf1
--- /dev/null
+++ b/drivers/staging/comedi/drivers/am9513.h
@@ -0,0 +1,79 @@
+/*
+    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