1 files changed, 89 insertions, 0 deletions
diff --git a/cpukit/rtems/include/rtems/rtems/modes.h b/cpukit/rtems/include/rtems/rtems/modes.h
new file mode 100644
index 0000000000..90327636c1
--- /dev/null
+++ b/cpukit/rtems/include/rtems/rtems/modes.h
@@ -0,0 +1,89 @@
+/*  modes.h
+ *
+ *  This include file contains all constants and structures associated
+ *  with the RTEMS thread and RTEMS_ASR modes.
+ *
+ *  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 in
+ *  the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#ifndef __RTEMS_MODES_h
+#define __RTEMS_MODES_h
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <rtems/score/isr.h>
+
+/*
+ *  The following type defines the control block used to manage
+ *  each a mode set.
+ */
+
+typedef unsigned32 Modes_Control;
+
+/*
+ *  The following constants define the individual modes and masks
+ *  which may be used to compose a mode set and to alter modes.
+ */
+
+#define RTEMS_ALL_MODE_MASKS     0x0000ffff
+
+#define RTEMS_DEFAULT_MODES     0x00000000
+#define RTEMS_CURRENT_MODE      0
+
+#define RTEMS_PREEMPT_MASK    0x00000100  /* preemption bit           */
+#define RTEMS_TIMESLICE_MASK  0x00000200  /* timeslice bit            */
+#define RTEMS_ASR_MASK        0x00000400  /* RTEMS_ASR enable bit           */
+#define RTEMS_INTERRUPT_MASK  CPU_MODES_INTERRUPT_MASK
+
+#define RTEMS_PREEMPT      0x00000000     /* enable preemption        */
+#define RTEMS_NO_PREEMPT   0x00000100     /* disable preemption       */
+
+#define RTEMS_NO_TIMESLICE 0x00000000     /* disable timeslicing      */
+#define RTEMS_TIMESLICE    0x00000200     /* enable timeslicing       */
+
+#define RTEMS_ASR          0x00000000     /* enable RTEMS_ASR               */
+#define RTEMS_NO_ASR       0x00000400     /* disable RTEMS_ASR              */
+
+/*
+ *  The number of bits for interrupt levels is CPU dependent.
+ *  RTEMS supports 0 to 256 levels in bits 0-7 of the mode.
+ */
+
+/*PAGE
+ *
+ *  RTEMS_INTERRUPT_LEVEL
+ *
+ *  DESCRIPTION:
+ *
+ *  This function returns the processor dependent interrupt
+ *  level which corresponds to the requested interrupt level.
+ *
+ * NOTE: RTEMS supports 256 interrupt levels using the least
+ *       significant eight bits of MODES.CONTROL.  On any
+ *       particular CPU, fewer than 256 levels may be supported.
+ */
+
+#define RTEMS_INTERRUPT_LEVEL( _mode_set ) \
+  ( (_mode_set) & RTEMS_INTERRUPT_MASK )
+ 
+
+#ifndef __RTEMS_APPLICATION__
+#include <rtems/rtems/modes.inl>
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/* end of include file */