1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
/*
* Copyright (c) 1997, Stefan Esser <se@freebsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _SYS_INTERRUPT_H_
#define _SYS_INTERRUPT_H_
/*
* Describe a hardware interrupt handler.
*
* Multiple interrupt handlers for a specific vector can be chained
* together via the 'next' pointer.
*/
struct ithd;
struct intrec {
driver_intr_t *handler; /* code address of handler */
void *argument; /* argument to pass to handler */
enum intr_type flags; /* flag bits (sys/bus.h) */
char *name; /* name of handler */
struct ithd *ithd; /* handler we're connected to */
struct intrec *next; /* next handler for this irq */
};
typedef void swihand_t __P((void));
extern swihand_t *shandlers[];
void register_swi __P((int intr, swihand_t *handler));
void swi_dispatcher __P((int intr));
swihand_t swi_generic;
swihand_t swi_null;
void unregister_swi __P((int intr, swihand_t *handler));
int ithread_priority __P((int flags));
void sched_softintr __P((void));
#endif
|
