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- /****************************************************************************
- * sched/irq/irq_foreach.c
- *
- * Copyright (C) 2018 Gregory Nutt. All rights reserved.
- * Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * 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.
- * 3. Neither the name NuttX nor the names of its contributors may be
- * used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * 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.
- *
- ****************************************************************************/
- /****************************************************************************
- * 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 */
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