irq.h

来自「this SRC packet is the headfiles that MI」· C头文件 代码 · 共 32 行

#ifndef _ASM_IA64_IRQ_H
#define _ASM_IA64_IRQ_H

/*
 * Copyright (C) 1999-2000 Hewlett-Packard Co
 * Copyright (C) 1998-2000 David Mosberger-Tang <[e-mail]>
 * Copyright (C) 1998 Stephane Eranian <[e-mail]>
 *
 * 11/24/98	S.Eranian 	updated TIMER_IRQ and irq_cannonicalize
 * 01/20/99	S.Eranian	added keyboard interrupt
 * 02/29/00     D.Mosberger	moved most things into hw_irq.h
 */

#define NR_IRQS		256

static __inline__ int
irq_cannonicalize (int irq)
{
	/*
	 * We do the legacy thing here of pretending that irqs < 16
	 * are 8259 irqs.  This really shouldn't be necessary at all,
	 * but we keep it here as serial.c still uses it...
	 */
	return ((irq == 2) ? 9 : irq);
}

extern void disable_irq (unsigned int);
extern void disable_irq_nosync (unsigned int);
extern void enable_irq (unsigned int);

#endif /* _ASM_IA64_IRQ_H */