forked from Imagelibrary/rtems
97 lines
3.1 KiB
C
97 lines
3.1 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 bsp_interrupt
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*
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* @brief This source file contains the implementation of
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* rtems_interrupt_handler_iterate().
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*/
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/*
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* Copyright (C) 2017 embedded brains GmbH (http://www.embedded-brains.de)
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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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/**
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* @brief Iterates over all installed interrupt handler of a vector.
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*
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* @ingroup bsp_interrupt
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*
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* @return In addition to the standard status codes this function returns
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* RTEMS_INTERNAL_ERROR if the BSP interrupt support is not initialized.
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*
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* @see rtems_interrupt_handler_iterate().
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*/
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static rtems_status_code bsp_interrupt_handler_iterate(
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rtems_vector_number vector,
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rtems_interrupt_per_handler_routine routine,
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void *arg
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)
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{
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rtems_interrupt_entry *current = NULL;
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rtems_option options = 0;
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rtems_vector_number index = 0;
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/* Check parameters and system state */
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if (!bsp_interrupt_is_initialized()) {
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return RTEMS_INTERNAL_ERROR;
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} else if (!bsp_interrupt_is_valid_vector(vector)) {
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return RTEMS_INVALID_ID;
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} else if (rtems_interrupt_is_in_progress()) {
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return RTEMS_CALLED_FROM_ISR;
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}
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/* Lock */
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bsp_interrupt_lock();
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/* Interate */
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index = bsp_interrupt_handler_index(vector);
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current = &bsp_interrupt_handler_table [index];
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if (!bsp_interrupt_is_empty_handler_entry(current)) {
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do {
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options = bsp_interrupt_is_handler_unique(index) ?
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RTEMS_INTERRUPT_UNIQUE : RTEMS_INTERRUPT_SHARED;
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routine(arg, current->info, options, current->handler, current->arg);
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current = current->next;
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} while (current != NULL);
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}
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/* Unlock */
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bsp_interrupt_unlock();
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return RTEMS_SUCCESSFUL;
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}
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rtems_status_code rtems_interrupt_handler_iterate(
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rtems_vector_number vector,
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rtems_interrupt_per_handler_routine routine,
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void *arg
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)
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{
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return bsp_interrupt_handler_iterate(vector, routine, arg);
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}
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