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-rw-r--r--arch/m68knommu/platform/5307/ints.c279
1 files changed, 0 insertions, 279 deletions
diff --git a/arch/m68knommu/platform/5307/ints.c b/arch/m68knommu/platform/5307/ints.c
deleted file mode 100644
index 751633038c4b..000000000000
--- a/arch/m68knommu/platform/5307/ints.c
+++ /dev/null
@@ -1,279 +0,0 @@
1/*
2 * linux/arch/m68knommu/kernel/ints.c -- General interrupt handling code
3 *
4 * Copyright (C) 1999-2002 Greg Ungerer (gerg@snapgear.com)
5 * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>,
6 * Kenneth Albanowski <kjahds@kjahds.com>,
7 * Copyright (C) 2000 Lineo Inc. (www.lineo.com)
8 *
9 * Based on:
10 *
11 * linux/arch/m68k/kernel/ints.c -- Linux/m68k general interrupt handling code
12 *
13 * This file is subject to the terms and conditions of the GNU General Public
14 * License. See the file COPYING in the main directory of this archive
15 * for more details.
16 */
17
18#include <linux/module.h>
19#include <linux/types.h>
20#include <linux/init.h>
21#include <linux/sched.h>
22#include <linux/interrupt.h>
23#include <linux/kernel_stat.h>
24#include <linux/errno.h>
25#include <linux/seq_file.h>
26
27#include <asm/system.h>
28#include <asm/irq.h>
29#include <asm/irqnode.h>
30#include <asm/traps.h>
31#include <asm/page.h>
32#include <asm/machdep.h>
33
34/*
35 * This table stores the address info for each vector handler.
36 */
37struct irq_entry irq_list[SYS_IRQS];
38
39#define NUM_IRQ_NODES 16
40static irq_node_t nodes[NUM_IRQ_NODES];
41
42/* The number of spurious interrupts */
43volatile unsigned int num_spurious;
44
45unsigned int local_irq_count[NR_CPUS];
46
47static irqreturn_t default_irq_handler(int irq, void *ptr)
48{
49#if 1
50 printk(KERN_INFO "%s(%d): default irq handler vec=%d [0x%x]\n",
51 __FILE__, __LINE__, irq, irq);
52#endif
53 return(IRQ_HANDLED);
54}
55
56/*
57 * void init_IRQ(void)
58 *
59 * Parameters: None
60 *
61 * Returns: Nothing
62 *
63 * This function should be called during kernel startup to initialize
64 * the IRQ handling routines.
65 */
66
67void __init init_IRQ(void)
68{
69 int i;
70
71 for (i = 0; i < SYS_IRQS; i++) {
72 if (mach_default_handler)
73 irq_list[i].handler = mach_default_handler;
74 else
75 irq_list[i].handler = default_irq_handler;
76 irq_list[i].flags = IRQ_FLG_STD;
77 irq_list[i].dev_id = NULL;
78 irq_list[i].devname = NULL;
79 }
80
81 for (i = 0; i < NUM_IRQ_NODES; i++)
82 nodes[i].handler = NULL;
83
84 if (mach_init_IRQ)
85 mach_init_IRQ();
86}
87
88irq_node_t *new_irq_node(void)
89{
90 irq_node_t *node;
91 short i;
92
93 for (node = nodes, i = NUM_IRQ_NODES-1; i >= 0; node++, i--)
94 if (!node->handler)
95 return node;
96
97 printk(KERN_INFO "new_irq_node: out of nodes\n");
98 return NULL;
99}
100
101int request_irq(
102 unsigned int irq,
103 irq_handler_t handler,
104 unsigned long flags,
105 const char *devname,
106 void *dev_id)
107{
108 if (irq < 0 || irq >= NR_IRQS) {
109 printk(KERN_WARNING "%s: Incorrect IRQ %d from %s\n", __FUNCTION__,
110 irq, devname);
111 return -ENXIO;
112 }
113
114 if (!(irq_list[irq].flags & IRQ_FLG_STD)) {
115 if (irq_list[irq].flags & IRQ_FLG_LOCK) {
116 printk(KERN_WARNING "%s: IRQ %d from %s is not replaceable\n",
117 __FUNCTION__, irq, irq_list[irq].devname);
118 return -EBUSY;
119 }
120 if (flags & IRQ_FLG_REPLACE) {
121 printk(KERN_WARNING "%s: %s can't replace IRQ %d from %s\n",
122 __FUNCTION__, devname, irq, irq_list[irq].devname);
123 return -EBUSY;
124 }
125 }
126
127 if (flags & IRQ_FLG_FAST) {
128 extern asmlinkage void fasthandler(void);
129 extern void set_evector(int vecnum, void (*handler)(void));
130 set_evector(irq, fasthandler);
131 }
132
133 irq_list[irq].handler = handler;
134 irq_list[irq].flags = flags;
135 irq_list[irq].dev_id = dev_id;
136 irq_list[irq].devname = devname;
137 return 0;
138}
139
140EXPORT_SYMBOL(request_irq);
141
142void free_irq(unsigned int irq, void *dev_id)
143{
144 if (irq >= NR_IRQS) {
145 printk(KERN_WARNING "%s: Incorrect IRQ %d\n", __FUNCTION__, irq);
146 return;
147 }
148
149 if (irq_list[irq].dev_id != dev_id)
150 printk(KERN_WARNING "%s: Removing probably wrong IRQ %d from %s\n",
151 __FUNCTION__, irq, irq_list[irq].devname);
152
153 if (irq_list[irq].flags & IRQ_FLG_FAST) {
154 extern asmlinkage void inthandler(void);
155 extern void set_evector(int vecnum, void (*handler)(void));
156 set_evector(irq, inthandler);
157 }
158
159 if (mach_default_handler)
160 irq_list[irq].handler = mach_default_handler;
161 else
162 irq_list[irq].handler = default_irq_handler;
163 irq_list[irq].flags = IRQ_FLG_STD;
164 irq_list[irq].dev_id = NULL;
165 irq_list[irq].devname = NULL;
166}
167
168EXPORT_SYMBOL(free_irq);
169
170
171int sys_request_irq(unsigned int irq, irq_handler_t handler,
172 unsigned long flags, const char *devname, void *dev_id)
173{
174 if (irq > IRQ7) {
175 printk(KERN_WARNING "%s: Incorrect IRQ %d from %s\n",
176 __FUNCTION__, irq, devname);
177 return -ENXIO;
178 }
179
180#if 0
181 if (!(irq_list[irq].flags & IRQ_FLG_STD)) {
182 if (irq_list[irq].flags & IRQ_FLG_LOCK) {
183 printk(KERN_WARNING "%s: IRQ %d from %s is not replaceable\n",
184 __FUNCTION__, irq, irq_list[irq].devname);
185 return -EBUSY;
186 }
187 if (!(flags & IRQ_FLG_REPLACE)) {
188 printk(KERN_WARNING "%s: %s can't replace IRQ %d from %s\n",
189 __FUNCTION__, devname, irq, irq_list[irq].devname);
190 return -EBUSY;
191 }
192 }
193#endif
194
195 irq_list[irq].handler = handler;
196 irq_list[irq].flags = flags;
197 irq_list[irq].dev_id = dev_id;
198 irq_list[irq].devname = devname;
199 return 0;
200}
201
202void sys_free_irq(unsigned int irq, void *dev_id)
203{
204 if (irq > IRQ7) {
205 printk(KERN_WARNING "%s: Incorrect IRQ %d\n", __FUNCTION__, irq);
206 return;
207 }
208
209 if (irq_list[irq].dev_id != dev_id)
210 printk(KERN_WARNING "%s: Removing probably wrong IRQ %d from %s\n",
211 __FUNCTION__, irq, irq_list[irq].devname);
212
213 irq_list[irq].handler = mach_default_handler;
214 irq_list[irq].flags = 0;
215 irq_list[irq].dev_id = NULL;
216 irq_list[irq].devname = NULL;
217}
218
219/*
220 * Do we need these probe functions on the m68k?
221 *
222 * ... may be useful with ISA devices
223 */
224unsigned long probe_irq_on (void)
225{
226 return 0;
227}
228
229EXPORT_SYMBOL(probe_irq_on);
230
231int probe_irq_off (unsigned long irqs)
232{
233 return 0;
234}
235
236EXPORT_SYMBOL(probe_irq_off);
237
238asmlinkage void process_int(unsigned long vec, struct pt_regs *fp)
239{
240 if (vec >= VEC_INT1 && vec <= VEC_INT7) {
241 vec -= VEC_SPUR;
242 kstat_cpu(0).irqs[vec]++;
243 irq_list[vec].handler(vec, irq_list[vec].dev_id);
244 } else {
245 if (mach_process_int)
246 mach_process_int(vec, fp);
247 else
248 panic("Can't process interrupt vector %ld\n", vec);
249 return;
250 }
251}
252
253
254int show_interrupts(struct seq_file *p, void *v)
255{
256 int i = *(loff_t *) v;
257
258 if (i < NR_IRQS) {
259 if (! (irq_list[i].flags & IRQ_FLG_STD)) {
260 seq_printf(p, "%3d: %10u ", i,
261 (i ? kstat_cpu(0).irqs[i] : num_spurious));
262 if (irq_list[i].flags & IRQ_FLG_LOCK)
263 seq_printf(p, "L ");
264 else
265 seq_printf(p, " ");
266 seq_printf(p, "%s\n", irq_list[i].devname);
267 }
268 }
269
270 if (i == NR_IRQS && mach_get_irq_list)
271 mach_get_irq_list(p, v);
272 return 0;
273}
274
275void init_irq_proc(void)
276{
277 /* Insert /proc/irq driver here */
278}
279
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