Added default mc68681 register access routines.

1 files changed, 61 insertions, 0 deletions

diff --git a/c/src/lib/libchip/serial/mc68681_reg.c b/c/src/lib/libchip/serial/mc68681_reg.c
new file mode 100644
index 0000000000..c9a16db130
--- /dev/null
+++ b/c/src/lib/libchip/serial/mc68681_reg.c
@@ -0,0 +1,61 @@
+/*
+ *  This file contains a typical set of register access routines which may be
+ *  used with the mc68681 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 _MC68681_MULTIPLIER
+#define _MC68681_MULTIPLIER 1
+#define _MC68681_NAME(_X) _X
+#define _MC68681_TYPE unsigned8
+#endif
+
+#define CALCULATE_REGISTER_ADDRESS( _base, _reg ) \
+  (_MC68681_TYPE *)((_base) + ((_reg) * _MC68681_MULTIPLIER ))
+
+/* 
+ *  MC68681 Get Register Routine
+ */
+
+unsigned8 _MC68681_NAME(mc68681_get_register)(
+  unsigned32  ulCtrlPort,
+  unsigned8   ucRegNum
+)
+{
+  _Z85C30_TYPE *port;
+
+  port = CALCULATE_REGISTER_ADDRESS( ulCtrlPort, ucRegNum );
+
+  return *port;
+}
+
+/*
+ *  MC68681 Set Register Routine
+ */
+
+void  _MC68681_NAME(mc68681_set_register)(
+  unsigned32  ulCtrlPort,
+  unsigned8   ucRegNum,
+  unsigned8   ucData
+)
+{
+  _Z85C30_TYPE *port;
+
+  port = CALCULATE_REGISTER_ADDRESS( ulCtrlPort, ucRegNum );
+
+  *port = ucData;
+}