1/*
 2 * Platform dependent support for HP simulator.
 3 *
 4 * Copyright (C) 1998-2001 Hewlett-Packard Co
 5 * Copyright (C) 1998-2001 David Mosberger-Tang <davidm@hpl.hp.com>
 6 */
 7
 8#include <linux/init.h>
 9#include <linux/kernel.h>
10#include <linux/sched.h>
11#include <linux/irq.h>
12
13static unsigned int
14hpsim_irq_startup(struct irq_data *data)
15{
16	return 0;
17}
18
19static void
20hpsim_irq_noop(struct irq_data *data)
21{
22}
23
24static int
25hpsim_set_affinity_noop(struct irq_data *d, const struct cpumask *b, bool f)
26{
27	return 0;
28}
29
30static struct irq_chip irq_type_hp_sim = {
31	.name =			"hpsim",
32	.irq_startup =		hpsim_irq_startup,
33	.irq_shutdown =		hpsim_irq_noop,
34	.irq_enable =		hpsim_irq_noop,
35	.irq_disable =		hpsim_irq_noop,
36	.irq_ack =		hpsim_irq_noop,
37	.irq_set_affinity =	hpsim_set_affinity_noop,
38};
39
40void __init
41hpsim_irq_init (void)
42{
43	int i;
44
45	for_each_active_irq(i) {
46		struct irq_chip *chip = irq_get_chip(i);
47
48		if (chip == &no_irq_chip)
49			irq_set_chip(i, &irq_type_hp_sim);
50	}
51}