1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License.  See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 1994 by Waldorf GMBH, written by Ralf Baechle
7 * Copyright (C) 1995, 96, 97, 98, 99, 2000, 01, 02 by Ralf Baechle
8 * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
9 * Copyright (C) 2001 Kanoj Sarcar
10 */
11#ifndef _ASM_IRQ_H
12#define _ASM_IRQ_H
13
14#include <linux/config.h>
15
16#define NR_IRQS 128		/* Largest number of ints of all machines.  */
17
18#ifdef CONFIG_I8259
19static inline int irq_cannonicalize(int irq)
20{
21	return ((irq == 2) ? 9 : irq);
22}
23#else
24#define irq_cannonicalize(irq) (irq)	/* Sane hardware, sane code ... */
25#endif
26
27struct irqaction;
28extern int i8259_setup_irq(int irq, struct irqaction * new);
29
30extern void disable_irq(unsigned int);
31extern void disable_irq_nosync(unsigned int);
32extern void enable_irq(unsigned int);
33
34/* Machine specific interrupt initialization  */
35extern void (*irq_setup)(void);
36
37extern void init_generic_irq(void);
38
39#endif /* _ASM_IRQ_H */
40