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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup bsp_interrupt
*
* @brief This source file contains the implementation of
* rtems_interrupt_handler_iterate().
*/
/*
* Copyright (C) 2017 embedded brains GmbH (http://www.embedded-brains.de)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <bsp/irq-generic.h>
/**
* @brief Iterates over all installed interrupt handler of a vector.
*
* @ingroup bsp_interrupt
*
* @return In addition to the standard status codes this function returns
* RTEMS_INTERNAL_ERROR if the BSP interrupt support is not initialized.
*
* @see rtems_interrupt_handler_iterate().
*/
static rtems_status_code bsp_interrupt_handler_iterate(
rtems_vector_number vector,
rtems_interrupt_per_handler_routine routine,
void *arg
)
{
bsp_interrupt_handler_entry *current = NULL;
rtems_option options = 0;
rtems_vector_number index = 0;
/* Check parameters and system state */
if (!bsp_interrupt_is_initialized()) {
return RTEMS_INTERNAL_ERROR;
} else if (!bsp_interrupt_is_valid_vector(vector)) {
return RTEMS_INVALID_ID;
} else if (rtems_interrupt_is_in_progress()) {
return RTEMS_CALLED_FROM_ISR;
}
/* Lock */
bsp_interrupt_lock();
/* Interate */
index = bsp_interrupt_handler_index(vector);
current = &bsp_interrupt_handler_table [index];
if (!bsp_interrupt_is_empty_handler_entry(current)) {
do {
options = bsp_interrupt_is_handler_unique(index) ?
RTEMS_INTERRUPT_UNIQUE : RTEMS_INTERRUPT_SHARED;
routine(arg, current->info, options, current->handler, current->arg);
current = current->next;
} while (current != NULL);
}
/* Unlock */
bsp_interrupt_unlock();
return RTEMS_SUCCESSFUL;
}
rtems_status_code rtems_interrupt_handler_iterate(
rtems_vector_number vector,
rtems_interrupt_per_handler_routine routine,
void *arg
)
{
return bsp_interrupt_handler_iterate(vector, routine, arg);
}
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