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115 lines
3.2 KiB
C
115 lines
3.2 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/**
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* @file
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*
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* @ingroup RTEMSImplClassicIntr
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*
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* @brief This source file contains the rtems_interrupt_handler_install()
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* implementation.
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*/
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/*
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* Copyright (C) 2021 embedded brains GmbH & Co. KG
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <bsp/irq-generic.h>
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#include <rtems/malloc.h>
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#include <stdlib.h>
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static rtems_status_code bsp_interrupt_handler_do_replace(
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rtems_vector_number vector,
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const char *info,
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rtems_interrupt_handler routine,
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void *arg
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)
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{
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rtems_interrupt_entry *entry;
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rtems_interrupt_entry **unused;
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entry = bsp_interrupt_entry_find( vector, routine, arg, &unused );
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if ( entry == NULL ) {
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return RTEMS_UNSATISFIED;
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}
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entry->handler = routine;
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entry->info = info;
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return RTEMS_SUCCESSFUL;
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}
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static rtems_status_code bsp_interrupt_handler_replace(
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rtems_vector_number vector,
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const char *info,
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rtems_interrupt_handler routine,
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void *arg
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)
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{
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rtems_status_code sc;
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sc = bsp_interrupt_check_and_lock( vector, routine );
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if ( sc != RTEMS_SUCCESSFUL ) {
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return sc;
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}
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sc = bsp_interrupt_handler_do_replace( vector, info, routine, arg );
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bsp_interrupt_unlock();
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return sc;
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}
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rtems_status_code rtems_interrupt_handler_install(
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rtems_vector_number vector,
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const char *info,
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rtems_option options,
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rtems_interrupt_handler routine,
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void *arg
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)
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{
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rtems_interrupt_entry *entry;
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rtems_status_code sc;
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if ( RTEMS_INTERRUPT_IS_REPLACE( options ) ) {
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return bsp_interrupt_handler_replace( vector, info, routine, arg );
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}
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entry = rtems_malloc( sizeof( *entry ) );
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if ( entry == NULL ) {
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return RTEMS_NO_MEMORY;
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}
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rtems_interrupt_entry_initialize( entry, routine, arg, info );
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sc = rtems_interrupt_entry_install( vector, options, entry );
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if ( sc != RTEMS_SUCCESSFUL ) {
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free( entry );
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}
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return sc;
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}
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