Support for variable length names added to Object Handler. This supports

both fixed length "raw" names and strings from the API's point of view.

Both inline and macro implementations were tested.

1 files changed, 98 insertions, 0 deletions

diff --git a/c/src/lib/libcpu/powerpc/ppc403/timer/timer.c b/c/src/lib/libcpu/powerpc/ppc403/timer/timer.c
new file mode 100644
index 0000000000..f351a9109d
--- /dev/null
+++ b/c/src/lib/libcpu/powerpc/ppc403/timer/timer.c
@@ -0,0 +1,98 @@
+/*  timer.c
+ *
+ *  This file manages the interval timer on the PowerPC 403*.
+ *  We shall use the bottom 32 bits of the timebase register,
+ *
+ *  NOTE: It is important that the timer start/stop overhead be
+ *        determined when porting or modifying this code.
+ *
+ *  Author:	Andrew Bray <andy@i-cubed.demon.co.uk>
+ *
+ *  COPYRIGHT (c) 1995 by i-cubed ltd.
+ *
+ *  To anyone who acknowledges that this file is provided "AS IS"
+ *  without any express or implied warranty:
+ *      permission to use, copy, modify, and distribute this file
+ *      for any purpose is hereby granted without fee, provided that
+ *      the above copyright notice and this notice appears in all
+ *      copies, and that the name of i-cubed limited not be used in
+ *      advertising or publicity pertaining to distribution of the
+ *      software without specific, written prior permission.
+ *      i-cubed limited makes no representations about the suitability
+ *      of this software for any purpose.
+ *
+ *  Derived from c/src/lib/libcpu/hppa1_1/timer/timer.c:
+ *
+ *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
+ *  On-Line Applications Research Corporation (OAR).
+ *  All rights assigned to U.S. Government, 1994.
+ *
+ *  This material may be reproduced by or for the U.S. Government pursuant
+ *  to the copyright license under the clause at DFARS 252.227-7013.  This
+ *  notice must appear in all copies of this file and its derivatives.
+ *
+ *  timer.c,v 1.2 1995/05/31 16:59:23 joel Exp
+ */
+
+#include <bsp.h>
+#include <rtems.h>
+
+extern rtems_cpu_table           Cpu_table;             /* owned by BSP */
+
+static volatile rtems_unsigned32 Timer_starting;
+static rtems_boolean Timer_driver_Find_average_overhead;
+
+/*
+ *  This is so small that this code will be reproduced where needed.
+ */
+static INLINE rtems_unsigned32 get_itimer(void)
+{
+   rtems_unsigned32 ret;
+
+   asm volatile ("mftblo %0" : "=r" ((ret)));
+
+   return ret;
+}
+
+void Timer_initialize()
+{
+  rtems_unsigned32 iocr;
+
+  asm volatile ("mfiocr %0" : "=r" (iocr));
+  iocr &= ~4;
+  iocr |= 4;  /* Select external timer clock */
+  asm volatile ("mtiocr %0" : "=r" (iocr) : "0" (iocr));
+
+  Timer_starting = get_itimer();
+}
+
+int Read_timer()
+{
+  rtems_unsigned32 clicks;
+  rtems_unsigned32 total;
+
+  clicks = get_itimer();
+
+  total = clicks - Timer_starting;
+
+  if ( Timer_driver_Find_average_overhead == 1 )
+    return total;          /* in XXX microsecond units */
+
+  else {
+    if ( total < Cpu_table.timer_least_valid )
+      return 0;            /* below timer resolution */
+    return (total - Cpu_table.timer_average_overhead);
+  }
+}
+
+rtems_status_code Empty_function( void )
+{
+  return RTEMS_SUCCESSFUL;
+}
+
+void Set_find_average_overhead(
+  rtems_boolean find_flag
+)
+{
+  Timer_driver_Find_average_overhead = find_flag;
+}