1/* $NetBSD: wseventvar.h,v 1.16 2015/09/06 06:01:01 dholland Exp $ */
2
3/*
4 * Copyright (c) 1996, 1997 Christopher G. Demetriou. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by Christopher G. Demetriou
17 * for the NetBSD Project.
18 * 4. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33/*
34 * Copyright (c) 1992, 1993
35 * The Regents of the University of California. All rights reserved.
36 *
37 * This software was developed by the Computer Systems Engineering group
38 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
39 * contributed to Berkeley.
40 *
41 * All advertising materials mentioning features or use of this software
42 * must display the following acknowledgement:
43 * This product includes software developed by the University of
44 * California, Lawrence Berkeley Laboratory.
45 *
46 * Redistribution and use in source and binary forms, with or without
47 * modification, are permitted provided that the following conditions
48 * are met:
49 * 1. Redistributions of source code must retain the above copyright
50 * notice, this list of conditions and the following disclaimer.
51 * 2. Redistributions in binary form must reproduce the above copyright
52 * notice, this list of conditions and the following disclaimer in the
53 * documentation and/or other materials provided with the distribution.
54 * 3. Neither the name of the University nor the names of its contributors
55 * may be used to endorse or promote products derived from this software
56 * without specific prior written permission.
57 *
58 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
59 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
60 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
61 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
62 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
63 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
64 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
65 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
66 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
67 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
68 * SUCH DAMAGE.
69 *
70 * @(#)event_var.h 8.1 (Berkeley) 6/11/93
71 */
72
73#include <sys/ioccom.h>
74
75/*
76 * Internal "wscons_event" queue interface for the keyboard and mouse drivers.
77 * The drivers are expected not to place events in the queue above spltty(),
78 * i.e., are expected to run off serial ports or similar devices.
79 */
80
81struct wseventvar {
82 u_int get; /* get (read) index (modified synchronously) */
83 volatile u_int put; /* put (write) index (modified by interrupt) */
84 struct selinfo sel; /* process selecting */
85 struct proc *io; /* process that opened queue (can get SIGIO) */
86 void *sih; /* soft interrupt handle for signals */
87 int wanted; /* wake up on input ready */
88 int async; /* send SIGIO on input ready */
89 struct wscons_event *q; /* circular buffer (queue) of events */
90 int version; /* event version */
91};
92
93void wsevent_init(struct wseventvar *, struct proc *);
94void wsevent_fini(struct wseventvar *);
95int wsevent_read(struct wseventvar *, struct uio *, int);
96int wsevent_poll(struct wseventvar *, int, struct lwp *);
97int wsevent_kqfilter(struct wseventvar *, struct knote *);
98void wsevent_wakeup(struct wseventvar *);
99int wsevent_inject(struct wseventvar *, struct wscons_event *, size_t);
100int wsevent_setversion(struct wseventvar *, int);
101
102/*
103 * COMPAT_50
104 */
105#include <compat/sys/time.h>
106
107struct owscons_event {
108 u_int type;
109 int value;
110 struct timespec50 time;
111};
112
113#define WSMUXIO_OINJECTEVENT _IOW('W', 96, struct owscons_event)
114
115