source: rtems/cpukit/score/src/isrisinprogress.c @ 255fe43

Last change on this file since 255fe43 was 255fe43, checked in by Joel Sherrill <joel@…>, on 03/01/22 at 20:40:44

cpukit/: Scripted embedded brains header file clean up

Updates #4625.

  • Property mode set to 100644
File size: 2.0 KB
Line 
1/* SPDX-License-Identifier: BSD-2-Clause */
2
3/**
4 * @file
5 *
6 * @ingroup RTEMSScoreISR
7 *
8 * @brief This source file contains the default implementation of
9 *   _ISR_Is_in_progress().
10 */
11
12/*
13 * Copyright (c) 2013-2015 embedded brains GmbH.  All rights reserved.
14 *
15 * Redistribution and use in source and binary forms, with or without
16 * modification, are permitted provided that the following conditions
17 * are met:
18 * 1. Redistributions of source code must retain the above copyright
19 *    notice, this list of conditions and the following disclaimer.
20 * 2. Redistributions in binary form must reproduce the above copyright
21 *    notice, this list of conditions and the following disclaimer in the
22 *    documentation and/or other materials provided with the distribution.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
28 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
35 */
36
37#ifdef HAVE_CONFIG_H
38#include "config.h"
39#endif
40
41#include <rtems/score/isr.h>
42#include <rtems/score/percpu.h>
43
44#if CPU_PROVIDES_ISR_IS_IN_PROGRESS == FALSE
45
46bool _ISR_Is_in_progress( void )
47{
48  uint32_t isr_nest_level;
49
50  #if defined( RTEMS_SMP )
51    ISR_Level level;
52
53    _ISR_Local_disable( level );
54  #endif
55
56  isr_nest_level = _ISR_Nest_level;
57
58  #if defined( RTEMS_SMP )
59    _ISR_Local_enable( level );
60  #endif
61
62  return isr_nest_level != 0;
63}
64
65#endif
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