source: rtems/cpukit/score/src/isrisinprogress.c @ ab02824

Last change on this file since ab02824 was ab02824, checked in by Joel Sherrill <joel@…>, on 02/16/22 at 21:09:06

score/src/[a-m]*.c: Change license to BSD-2

Updates #3053.

  • Property mode set to 100644
File size: 2.1 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 *  embedded brains GmbH
16 *  Dornierstr. 4
17 *  82178 Puchheim
18 *  Germany
19 *  <rtems@embedded-brains.de>
20 *
21 * Redistribution and use in source and binary forms, with or without
22 * modification, are permitted provided that the following conditions
23 * are met:
24 * 1. Redistributions of source code must retain the above copyright
25 *    notice, this list of conditions and the following disclaimer.
26 * 2. Redistributions in binary form must reproduce the above copyright
27 *    notice, this list of conditions and the following disclaimer in the
28 *    documentation and/or other materials provided with the distribution.
29 *
30 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
31 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
32 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
34 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
35 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
36 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
37 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
38 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
39 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
40 * POSSIBILITY OF SUCH DAMAGE.
41 */
42
43#ifdef HAVE_CONFIG_H
44#include "config.h"
45#endif
46
47#include <rtems/score/isr.h>
48#include <rtems/score/percpu.h>
49
50#if CPU_PROVIDES_ISR_IS_IN_PROGRESS == FALSE
51
52bool _ISR_Is_in_progress( void )
53{
54  uint32_t isr_nest_level;
55
56  #if defined( RTEMS_SMP )
57    ISR_Level level;
58
59    _ISR_Local_disable( level );
60  #endif
61
62  isr_nest_level = _ISR_Nest_level;
63
64  #if defined( RTEMS_SMP )
65    _ISR_Local_enable( level );
66  #endif
67
68  return isr_nest_level != 0;
69}
70
71#endif
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