1/*	$NetBSD: wsmuxvar.h,v 1.13 2008/03/25 00:49:20 cube 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 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32/*
33 * A ws event source, i.e., wskbd, wsmouse, or wsmux.
34 */
35struct wsevsrc {
36	device_t me_dv;
37	const struct wssrcops *me_ops;	/* method pointers */
38	struct wseventvar me_evar;	/* wseventvar opened directly */
39	struct wseventvar *me_evp;	/* our wseventvar when open */
40#if NWSDISPLAY > 0
41	device_t me_dispdv;       /* our display if part of one */
42#endif
43#if NWSMUX > 0
44	struct wsmux_softc *me_parent;	/* parent mux device */
45	CIRCLEQ_ENTRY(wsevsrc) me_next;	/* sibling pointers */
46#endif
47};
48
49/*
50 * Methods that can be performed on an events source.  Usually called
51 * from a wsmux.
52 */
53struct wssrcops {
54	int type;		/* device type: WSMUX_{MOUSE,KBD,MUX} */
55	int (*dopen)(struct wsevsrc *, struct wseventvar *);
56	int (*dclose)(struct wsevsrc *);
57	int (*dioctl)(device_t, u_long, void *, int, struct lwp *);
58	int (*ddispioctl)(device_t, u_long, void *, int, struct lwp *);
59	int (*dsetdisplay)(device_t, struct wsevsrc *);
60};
61
62#define wsevsrc_open(me, evp) \
63	((me)->me_ops->dopen((me), evp))
64#define wsevsrc_close(me) \
65	((me)->me_ops->dclose((me)))
66#define wsevsrc_ioctl(me, cmd, data, flag, l) \
67	((me)->me_ops->dioctl((me)->me_dv, cmd, (void *)data, flag, l))
68#define wsevsrc_display_ioctl(me, cmd, data, flag, l) \
69	((me)->me_ops->ddispioctl((me)->me_dv, cmd, (void *)data, flag, l))
70#define wsevsrc_set_display(me, arg) \
71	((me)->me_ops->dsetdisplay((me)->me_dv, arg))
72
73#if NWSMUX > 0
74struct wsmux_softc {
75	struct wsevsrc sc_base;
76	struct proc *sc_p;		/* open proc */
77	CIRCLEQ_HEAD(, wsevsrc) sc_cld; /* list of children */
78	u_int32_t sc_kbd_layout;	/* current layout of keyboard */
79#ifdef WSDISPLAY_COMPAT_RAWKBD
80	int sc_rawkbd;		        /* A hack to remember the kbd mode */
81#endif
82};
83
84struct	wsmux_softc *wsmux_getmux(int);
85struct	wsmux_softc *wsmux_create(const char *, int);
86int	wsmux_attach_sc(struct wsmux_softc *, struct wsevsrc *);
87void	wsmux_detach_sc(struct wsevsrc *);
88int	wsmux_set_display(struct wsmux_softc *, device_t);
89
90int	wskbd_add_mux(int, struct wsmux_softc *);
91int	wsmouse_add_mux(int, struct wsmux_softc *);
92
93#endif /* NWSMUX > 0 */
94