1/* $NetBSD: evtchn.h,v 1.23 2015/03/14 10:49:36 bouyer Exp $ */
2
3/*
4 *
5 * Copyright (c) 2004 Christian Limpach.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef _XEN_EVENTS_H_
30#define _XEN_EVENTS_H_
31
32#define NR_PIRQS 256
33
34extern struct evtsource *evtsource[];
35
36void events_default_setup(void);
37void events_init(void);
38bool events_suspend(void);
39bool events_resume(void);
40
41unsigned int evtchn_do_event(int, struct intrframe *);
42void call_evtchn_do_event(int, struct intrframe *);
43void call_xenevt_event(int);
44int event_set_handler(int, int (*func)(void *), void *, int, const char *);
45int event_remove_handler(int, int (*func)(void *), void *);
46
47struct cpu_info;
48struct intrhand;
49void event_set_iplhandler(struct cpu_info *, struct intrhand *, int);
50
51extern int debug_port;
52extern int xen_debug_handler(void *);
53
54int bind_virq_to_evtch(int);
55int bind_pirq_to_evtch(int);
56int unbind_pirq_from_evtch(int);
57int unbind_virq_from_evtch(int);
58
59evtchn_port_t bind_vcpu_to_evtch(cpuid_t);
60
61struct pintrhand {
62 int pirq;
63 int evtch;
64 int (*func)(void *);
65 void *arg;
66};
67
68struct pintrhand *pirq_establish(int, int, int (*)(void *), void *, int,
69 const char *);
70void pirq_disestablish(struct pintrhand *);
71
72#endif /* _XEN_EVENTS_H_ */
73