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
13#include "hpsim_ssc.h"
14
15static unsigned int
16hpsim_irq_startup(struct irq_data *data)
17{
18	return 0;
19}
20
21static void
22hpsim_irq_noop(struct irq_data *data)
23{
24}
25
26static int
27hpsim_set_affinity_noop(struct irq_data *d, const struct cpumask *b, bool f)
28{
29	return 0;
30}
31
32static struct irq_chip irq_type_hp_sim = {
33	.name =			"hpsim",
34	.irq_startup =		hpsim_irq_startup,
35	.irq_shutdown =		hpsim_irq_noop,
36	.irq_enable =		hpsim_irq_noop,
37	.irq_disable =		hpsim_irq_noop,
38	.irq_ack =		hpsim_irq_noop,
39	.irq_set_affinity =	hpsim_set_affinity_noop,
40};
41
42static void hpsim_irq_set_chip(int irq)
43{
44	struct irq_chip *chip = irq_get_chip(irq);
45
46	if (chip == &no_irq_chip)
47		irq_set_chip(irq, &irq_type_hp_sim);
48}
49
50static void hpsim_connect_irq(int intr, int irq)
51{
52	ia64_ssc(intr, irq, 0, 0, SSC_CONNECT_INTERRUPT);
53}
54
55int hpsim_get_irq(int intr)
56{
57	int irq = assign_irq_vector(AUTO_ASSIGN);
58
59	if (irq >= 0) {
60		hpsim_irq_set_chip(irq);
61		irq_set_handler(irq, handle_simple_irq);
62		hpsim_connect_irq(intr, irq);
63	}
64
65	return irq;
66}
67
68void __init
69hpsim_irq_init (void)
70{
71	int i;
72
73	for_each_active_irq(i)
74		hpsim_irq_set_chip(i);
 
 
 
 
75}

 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}