nuttx/sched/irq/irq_foreach.c
Alin Jerpelea eb9030c891 sched: migrate to SPDX identifier
Most tools used for compliance and SBOM generation use SPDX identifiers
This change brings us a step closer to an easy SBOM generation.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2024-09-12 01:10:14 +08:00

106 lines
3.5 KiB
C

/****************************************************************************
* sched/irq/irq_foreach.c
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <assert.h>
#include <debug.h>
#include <nuttx/irq.h>
#include "irq/irq.h"
#ifdef CONFIG_SCHED_IRQMONITOR
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* This is the number of entries in the interrupt vector table */
#ifdef CONFIG_ARCH_MINIMAL_VECTORTABLE
# define TAB_SIZE CONFIG_ARCH_NUSER_INTERRUPTS
#else
# define TAB_SIZE NR_IRQS
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: irq_foreach
*
* Description:
* This function traverses the internal list of interrupts and provides
* information about each attached interrupt.
*
* Some caution may be necessary: If interrupts are disabled then the
* counts may change during the traversal. If pre-emption is enabled, then
* the traversed sequence may be widely separated in time.
*
* Input Parameters:
* callback - This function will be called for each attached interrupt
* along with the IRQ number, an instance of struct irq_info_s,
* and the caller provided argument
* args - This is an opaque argument provided with each call to the
* callback function.
*
* Returned Value:
* Zero (OK) is returned after callback has been invoked for all of
* the attached interrupts. The callback function may terminate the
* traversal at any time by returning a non-zero value. In that case,
* irq_foreach will return that non-zero value.
*
****************************************************************************/
int irq_foreach(irq_foreach_t callback, FAR void *arg)
{
int irq;
int ret;
DEBUGASSERT(callback != NULL);
/* Visit each interrupt in the interrupt table */
for (irq = 0; irq < TAB_SIZE; irq++)
{
if (g_irqvector[irq].handler != NULL &&
g_irqvector[irq].handler != irq_unexpected_isr)
{
ret = callback(irq, &g_irqvector[irq], arg);
if (ret != 0)
{
return ret;
}
}
}
return OK;
}
#endif /* CONFIG_SCHED_IRQMONITOR */