aboutsummaryrefslogtreecommitdiffstats
path: root/arch/m68k/mvme147/147ints.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m68k/mvme147/147ints.c')
-rw-r--r--arch/m68k/mvme147/147ints.c146
1 files changed, 0 insertions, 146 deletions
diff --git a/arch/m68k/mvme147/147ints.c b/arch/m68k/mvme147/147ints.c
deleted file mode 100644
index b4aa5e8f44ea..000000000000
--- a/arch/m68k/mvme147/147ints.c
+++ /dev/null
@@ -1,146 +0,0 @@
1/*
2 * arch/m68k/mvme147/147ints.c
3 *
4 * Copyright (C) 1997 Richard Hirst [richard@sleepie.demon.co.uk]
5 *
6 * based on amiints.c -- Amiga Linux interrupt handling code
7 *
8 * This file is subject to the terms and conditions of the GNU General Public
9 * License. See the file README.legal in the main directory of this archive
10 * for more details.
11 *
12 */
13
14#include <linux/types.h>
15#include <linux/kernel.h>
16#include <linux/errno.h>
17#include <linux/interrupt.h>
18#include <linux/seq_file.h>
19
20#include <asm/ptrace.h>
21#include <asm/system.h>
22#include <asm/irq.h>
23#include <asm/traps.h>
24
25static irqreturn_t mvme147_defhand (int irq, void *dev_id, struct pt_regs *fp);
26
27/*
28 * This should ideally be 4 elements only, for speed.
29 */
30
31static struct {
32 irqreturn_t (*handler)(int, void *, struct pt_regs *);
33 unsigned long flags;
34 void *dev_id;
35 const char *devname;
36 unsigned count;
37} irq_tab[256];
38
39/*
40 * void mvme147_init_IRQ (void)
41 *
42 * Parameters: None
43 *
44 * Returns: Nothing
45 *
46 * This function is called during kernel startup to initialize
47 * the mvme147 IRQ handling routines.
48 */
49
50void mvme147_init_IRQ (void)
51{
52 int i;
53
54 for (i = 0; i < 256; i++) {
55 irq_tab[i].handler = mvme147_defhand;
56 irq_tab[i].flags = IRQ_FLG_STD;
57 irq_tab[i].dev_id = NULL;
58 irq_tab[i].devname = NULL;
59 irq_tab[i].count = 0;
60 }
61}
62
63int mvme147_request_irq(unsigned int irq,
64 irqreturn_t (*handler)(int, void *, struct pt_regs *),
65 unsigned long flags, const char *devname, void *dev_id)
66{
67 if (irq > 255) {
68 printk("%s: Incorrect IRQ %d from %s\n", __FUNCTION__, irq, devname);
69 return -ENXIO;
70 }
71 if (!(irq_tab[irq].flags & IRQ_FLG_STD)) {
72 if (irq_tab[irq].flags & IRQ_FLG_LOCK) {
73 printk("%s: IRQ %d from %s is not replaceable\n",
74 __FUNCTION__, irq, irq_tab[irq].devname);
75 return -EBUSY;
76 }
77 if (flags & IRQ_FLG_REPLACE) {
78 printk("%s: %s can't replace IRQ %d from %s\n",
79 __FUNCTION__, devname, irq, irq_tab[irq].devname);
80 return -EBUSY;
81 }
82 }
83 irq_tab[irq].handler = handler;
84 irq_tab[irq].flags = flags;
85 irq_tab[irq].dev_id = dev_id;
86 irq_tab[irq].devname = devname;
87 return 0;
88}
89
90void mvme147_free_irq(unsigned int irq, void *dev_id)
91{
92 if (irq > 255) {
93 printk("%s: Incorrect IRQ %d\n", __FUNCTION__, irq);
94 return;
95 }
96 if (irq_tab[irq].dev_id != dev_id)
97 printk("%s: Removing probably wrong IRQ %d from %s\n",
98 __FUNCTION__, irq, irq_tab[irq].devname);
99
100 irq_tab[irq].handler = mvme147_defhand;
101 irq_tab[irq].flags = IRQ_FLG_STD;
102 irq_tab[irq].dev_id = NULL;
103 irq_tab[irq].devname = NULL;
104}
105
106irqreturn_t mvme147_process_int (unsigned long vec, struct pt_regs *fp)
107{
108 if (vec > 255) {
109 printk ("mvme147_process_int: Illegal vector %ld\n", vec);
110 return IRQ_NONE;
111 } else {
112 irq_tab[vec].count++;
113 irq_tab[vec].handler(vec, irq_tab[vec].dev_id, fp);
114 return IRQ_HANDLED;
115 }
116}
117
118int show_mvme147_interrupts (struct seq_file *p, void *v)
119{
120 int i;
121
122 for (i = 0; i < 256; i++) {
123 if (irq_tab[i].count)
124 seq_printf(p, "Vec 0x%02x: %8d %s\n",
125 i, irq_tab[i].count,
126 irq_tab[i].devname ? irq_tab[i].devname : "free");
127 }
128 return 0;
129}
130
131
132static irqreturn_t mvme147_defhand (int irq, void *dev_id, struct pt_regs *fp)
133{
134 printk ("Unknown interrupt 0x%02x\n", irq);
135 return IRQ_NONE;
136}
137
138void mvme147_enable_irq (unsigned int irq)
139{
140}
141
142
143void mvme147_disable_irq (unsigned int irq)
144{
145}
146