diff options
Diffstat (limited to 'arch/m68k/mvme16x/16xints.c')
-rw-r--r-- | arch/m68k/mvme16x/16xints.c | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/arch/m68k/mvme16x/16xints.c b/arch/m68k/mvme16x/16xints.c deleted file mode 100644 index 81afada90dd2..000000000000 --- a/arch/m68k/mvme16x/16xints.c +++ /dev/null | |||
@@ -1,150 +0,0 @@ | |||
1 | /* | ||
2 | * arch/m68k/mvme16x/16xints.c | ||
3 | * | ||
4 | * Copyright (C) 1995 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/system.h> | ||
21 | #include <asm/ptrace.h> | ||
22 | #include <asm/irq.h> | ||
23 | |||
24 | static irqreturn_t mvme16x_defhand (int irq, void *dev_id, struct pt_regs *fp); | ||
25 | |||
26 | /* | ||
27 | * This should ideally be 4 elements only, for speed. | ||
28 | */ | ||
29 | |||
30 | static struct { | ||
31 | irqreturn_t (*handler)(int, void *, struct pt_regs *); | ||
32 | unsigned long flags; | ||
33 | void *dev_id; | ||
34 | const char *devname; | ||
35 | unsigned count; | ||
36 | } irq_tab[192]; | ||
37 | |||
38 | /* | ||
39 | * void mvme16x_init_IRQ (void) | ||
40 | * | ||
41 | * Parameters: None | ||
42 | * | ||
43 | * Returns: Nothing | ||
44 | * | ||
45 | * This function is called during kernel startup to initialize | ||
46 | * the mvme16x IRQ handling routines. Should probably ensure | ||
47 | * that the base vectors for the VMEChip2 and PCCChip2 are valid. | ||
48 | */ | ||
49 | |||
50 | void mvme16x_init_IRQ (void) | ||
51 | { | ||
52 | int i; | ||
53 | |||
54 | for (i = 0; i < 192; i++) { | ||
55 | irq_tab[i].handler = mvme16x_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 | |||
63 | int mvme16x_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 < 64 || irq > 255) { | ||
68 | printk("%s: Incorrect IRQ %d from %s\n", __FUNCTION__, irq, devname); | ||
69 | return -ENXIO; | ||
70 | } | ||
71 | |||
72 | if (!(irq_tab[irq-64].flags & IRQ_FLG_STD)) { | ||
73 | if (irq_tab[irq-64].flags & IRQ_FLG_LOCK) { | ||
74 | printk("%s: IRQ %d from %s is not replaceable\n", | ||
75 | __FUNCTION__, irq, irq_tab[irq-64].devname); | ||
76 | return -EBUSY; | ||
77 | } | ||
78 | if (flags & IRQ_FLG_REPLACE) { | ||
79 | printk("%s: %s can't replace IRQ %d from %s\n", | ||
80 | __FUNCTION__, devname, irq, irq_tab[irq-64].devname); | ||
81 | return -EBUSY; | ||
82 | } | ||
83 | } | ||
84 | irq_tab[irq-64].handler = handler; | ||
85 | irq_tab[irq-64].flags = flags; | ||
86 | irq_tab[irq-64].dev_id = dev_id; | ||
87 | irq_tab[irq-64].devname = devname; | ||
88 | return 0; | ||
89 | } | ||
90 | |||
91 | void mvme16x_free_irq(unsigned int irq, void *dev_id) | ||
92 | { | ||
93 | if (irq < 64 || irq > 255) { | ||
94 | printk("%s: Incorrect IRQ %d\n", __FUNCTION__, irq); | ||
95 | return; | ||
96 | } | ||
97 | |||
98 | if (irq_tab[irq-64].dev_id != dev_id) | ||
99 | printk("%s: Removing probably wrong IRQ %d from %s\n", | ||
100 | __FUNCTION__, irq, irq_tab[irq-64].devname); | ||
101 | |||
102 | irq_tab[irq-64].handler = mvme16x_defhand; | ||
103 | irq_tab[irq-64].flags = IRQ_FLG_STD; | ||
104 | irq_tab[irq-64].dev_id = NULL; | ||
105 | irq_tab[irq-64].devname = NULL; | ||
106 | } | ||
107 | |||
108 | irqreturn_t mvme16x_process_int (unsigned long vec, struct pt_regs *fp) | ||
109 | { | ||
110 | if (vec < 64 || vec > 255) { | ||
111 | printk ("mvme16x_process_int: Illegal vector %ld", vec); | ||
112 | return IRQ_NONE; | ||
113 | } else { | ||
114 | irq_tab[vec-64].count++; | ||
115 | irq_tab[vec-64].handler(vec, irq_tab[vec-64].dev_id, fp); | ||
116 | return IRQ_HANDLED; | ||
117 | } | ||
118 | } | ||
119 | |||
120 | int show_mvme16x_interrupts (struct seq_file *p, void *v) | ||
121 | { | ||
122 | int i; | ||
123 | |||
124 | for (i = 0; i < 192; i++) { | ||
125 | if (irq_tab[i].count) | ||
126 | seq_printf(p, "Vec 0x%02x: %8d %s\n", | ||
127 | i+64, irq_tab[i].count, | ||
128 | irq_tab[i].devname ? irq_tab[i].devname : "free"); | ||
129 | } | ||
130 | return 0; | ||
131 | } | ||
132 | |||
133 | |||
134 | static irqreturn_t mvme16x_defhand (int irq, void *dev_id, struct pt_regs *fp) | ||
135 | { | ||
136 | printk ("Unknown interrupt 0x%02x\n", irq); | ||
137 | return IRQ_NONE; | ||
138 | } | ||
139 | |||
140 | |||
141 | void mvme16x_enable_irq (unsigned int irq) | ||
142 | { | ||
143 | } | ||
144 | |||
145 | |||
146 | void mvme16x_disable_irq (unsigned int irq) | ||
147 | { | ||
148 | } | ||
149 | |||
150 | |||