irq.h

linux-2.4.29操作系统的源码

/*
 * linux/include/asm-arm/arch-at91rm9200/irq.h
 *
 *  Copyright (C) 2003 SAN People
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef __ASM_ARCH_IRQ_H
#define __ASM_ARCH_IRQ_H

/* The FIQ (irq = 0) is treated as a spurious IRQ */
#define fixup_irq(i)	(i ? i : NR_IRQS)

/*
 * Acknowledge interrupt with AIC after interrupt has been handled.
 *   (by kernel/irq.c)
 */
#define irq_finish(irq) do { AT91_SYS->AIC_EOICR = 0; } while (0)

#endif