wsmuxvar.h revision 1.8 
1/*	$NetBSD: wsmuxvar.h,v 1.8 2003/06/28 14:21:48 darrenr Exp $	*/
2
3/*
4 * Copyright (c) 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Author: Lennart Augustsson <augustss@carlstedt.se>
8 *         Carlstedt Research & Technology
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *        This product includes software developed by the NetBSD
21 *        Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 *    contributors may be used to endorse or promote products derived
24 *    from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39/*
40 * A ws event source, i.e., wskbd, wsmouse, or wsmux.
41 */
42struct wsevsrc {
43	struct device me_dv;
44	const struct wssrcops *me_ops;	/* method pointers */
45	struct wseventvar me_evar;	/* wseventvar opened directly */
46	struct wseventvar *me_evp;	/* our wseventvar when open */
47#if NWSDISPLAY > 0
48	struct device *me_dispdv;       /* our display if part of one */
49#endif
50#if NWSMUX > 0
51	struct wsmux_softc *me_parent;	/* parent mux device */
52	CIRCLEQ_ENTRY(wsevsrc) me_next;	/* sibling pointers */
53#endif
54};
55
56/*
57 * Methods that can be performed on an events source.  Usually called
58 * from a wsmux.
59 */
60struct wssrcops {
61	int type;		/* device type: WSMUX_{MOUSE,KBD,MUX} */
62	int (*dopen)(struct wsevsrc *, struct wseventvar *);
63	int (*dclose)(struct wsevsrc *);
64	int (*dioctl)(struct device *, u_long, caddr_t, int, struct lwp *);
65	int (*ddispioctl)(struct device *, u_long, caddr_t, int, struct lwp *);
66	int (*dsetdisplay)(struct device *, struct wsevsrc *);
67};
68
69#define wsevsrc_open(me, evp) \
70	((me)->me_ops->dopen((me), evp))
71#define wsevsrc_close(me) \
72	((me)->me_ops->dclose((me)))
73#define wsevsrc_ioctl(me, cmd, data, flag, l) \
74	((me)->me_ops->dioctl(&(me)->me_dv, cmd, (caddr_t)data, flag, l))
75#define wsevsrc_display_ioctl(me, cmd, data, flag, l) \
76	((me)->me_ops->ddispioctl(&(me)->me_dv, cmd, (caddr_t)data, flag, l))
77#define wsevsrc_set_display(me, arg) \
78	((me)->me_ops->dsetdisplay(&(me)->me_dv, arg))
79
80#if NWSMUX > 0
81struct wsmux_softc {
82	struct wsevsrc sc_base;
83	struct proc *sc_p;		/* open proc */
84	CIRCLEQ_HEAD(, wsevsrc) sc_cld; /* list of children */
85#ifdef WSDISPLAY_COMPAT_RAWKBD
86	int sc_rawkbd;		        /* A hack to remember the kbd mode */
87#endif
88};
89
90struct	wsmux_softc *wsmux_getmux(int);
91struct	wsmux_softc *wsmux_create(const char *, int);
92int	wsmux_attach_sc(struct wsmux_softc *, struct wsevsrc *);
93void	wsmux_detach_sc(struct wsevsrc *);
94int	wsmux_set_display(struct wsmux_softc *, struct device *);
95
96int	wskbd_add_mux(int, struct wsmux_softc *);
97int	wsmouse_add_mux(int, struct wsmux_softc *);
98
99#endif /* NWSMUX > 0 */
100