1 files changed, 61 insertions, 0 deletions
diff --git a/c/src/libchip/rtc/m48t08_reg.c b/c/src/libchip/rtc/m48t08_reg.c
new file mode 100644
index 0000000000..649a176a48
--- /dev/null
+++ b/c/src/libchip/rtc/m48t08_reg.c
@@ -0,0 +1,61 @@
+/*
+ *  This file contains a typical set of register access routines which may be
+ *  used with the m48t08 chip if accesses to the chip are as follows:
+ *
+ *    + registers are accessed as bytes
+ *    + registers are only byte-aligned (no address gaps)
+ *
+ *  COPYRIGHT (c) 1989-1997.
+ *  On-Line Applications Research Corporation (OAR).
+ *  Copyright assigned to U.S. Government, 1994.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include <rtems.h>
+
+#ifndef _M48T08_MULTIPLIER
+#define _M48T08_MULTIPLIER 1
+#define _M48T08_NAME(_X) _X
+#define _M48T08_TYPE unsigned8
+#endif
+
+#define CALCULATE_REGISTER_ADDRESS( _base, _reg ) \
+  (_M48T08_TYPE *)((_base) + ((_reg) * _M48T08_MULTIPLIER ))
+
+/* 
+ *  M48T08 Get Register Routine
+ */
+
+unsigned8 _M48T08_NAME(m48t08_get_register)(
+  unsigned32  ulCtrlPort,
+  unsigned8   ucRegNum
+)
+{
+  _M48T08_TYPE *port;
+
+  port = CALCULATE_REGISTER_ADDRESS( ulCtrlPort, ucRegNum );
+
+  return *port;
+}
+
+/*
+ *  M48T08 Set Register Routine
+ */
+
+void  _M48T08_NAME(m48t08_set_register)(
+  unsigned32  ulCtrlPort,
+  unsigned8   ucRegNum,
+  unsigned8   ucData
+)
+{
+  _M48T08_TYPE *port;
+
+  port = CALCULATE_REGISTER_ADDRESS( ulCtrlPort, ucRegNum );
+
+  *port = ucData;
+}