1 files changed, 51 insertions, 0 deletions
diff --git a/cpukit/score/src/isrisinprogress.c b/cpukit/score/src/isrisinprogress.c
new file mode 100644
index 0000000000..7607cfe436
--- /dev/null
+++ b/cpukit/score/src/isrisinprogress.c
@@ -0,0 +1,51 @@
+/**
+ * @file
+ *
+ * @ingroup ScoreISR
+ *
+ * @brief ISR Is In Progress Default Implementation
+ */
+
+/*
+ * Copyright (c) 2013-2015 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#if HAVE_CONFIG_H
+  #include "config.h"
+#endif
+
+#include <rtems/score/isr.h>
+#include <rtems/score/percpu.h>
+
+#if CPU_PROVIDES_ISR_IS_IN_PROGRESS == FALSE
+
+bool _ISR_Is_in_progress( void )
+{
+  uint32_t isr_nest_level;
+
+  #if defined( RTEMS_SMP )
+    ISR_Level level;
+
+    _ISR_Disable_without_giant( level );
+  #endif
+
+  isr_nest_level = _ISR_Nest_level;
+
+  #if defined( RTEMS_SMP )
+    _ISR_Enable_without_giant( level );
+  #endif
+
+  return isr_nest_level != 0;
+}
+
+#endif