112 lines
3.8 KiB
C
112 lines
3.8 KiB
C
/****************************************************************************
|
|
* sched/irq/irq_initialize.c
|
|
*
|
|
* Copyright (C) 2007-2008, 2010, 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 <nuttx/arch.h>
|
|
#include <nuttx/irq.h>
|
|
|
|
#include "irq/irq.h"
|
|
|
|
/****************************************************************************
|
|
* 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 Data
|
|
****************************************************************************/
|
|
|
|
/* This is the interrupt vector table */
|
|
|
|
#ifdef CONFIG_ARCH_MINIMAL_VECTORTABLE
|
|
struct irq_info_s g_irqvector[CONFIG_ARCH_NUSER_INTERRUPTS];
|
|
#else
|
|
struct irq_info_s g_irqvector[NR_IRQS];
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: irq_initialize
|
|
*
|
|
* Description:
|
|
* Configure the IRQ subsystem
|
|
*
|
|
****************************************************************************/
|
|
|
|
void irq_initialize(void)
|
|
{
|
|
int i;
|
|
|
|
/* Point all interrupt vectors to the unexpected interrupt */
|
|
|
|
for (i = 0; i < TAB_SIZE; i++)
|
|
{
|
|
g_irqvector[i].handler = irq_unexpected_isr;
|
|
g_irqvector[i].arg = NULL;
|
|
#ifdef CONFIG_SCHED_IRQMONITOR
|
|
g_irqvector[i].start = 0;
|
|
#ifdef CONFIG_HAVE_LONG_LONG
|
|
g_irqvector[i].count = 0;
|
|
#else
|
|
g_irqvector[i].mscount = 0;
|
|
g_irqvector[i].lscount = 0;
|
|
#endif
|
|
#ifdef CONFIG_SCHED_TICKLESS
|
|
g_irqvector[i].time = 0;
|
|
#endif
|
|
#endif
|
|
}
|
|
|
|
#ifdef CONFIG_IRQCHAIN
|
|
/* Initialize IRQ chain support */
|
|
|
|
irqchain_initialize();
|
|
#endif
|
|
}
|