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wsmuxvar.h revision 1.15 
      1 /*	$NetBSD: wsmuxvar.h,v 1.15 2013/11/23 20:56:41 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Author: Lennart Augustsson <augustss (at) 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  */
     35 struct 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 	TAILQ_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  */
     53 struct 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
     74 struct wsmux_softc {
     75 	struct wsevsrc sc_base;
     76 	struct proc *sc_p;		/* open proc */
     77 	TAILQ_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 
     84 struct	wsmux_softc *wsmux_getmux(int);
     85 struct	wsmux_softc *wsmux_create(const char *, int);
     86 int	wsmux_attach_sc(struct wsmux_softc *, struct wsevsrc *);
     87 void	wsmux_detach_sc(struct wsevsrc *);
     88 int	wsmux_set_display(struct wsmux_softc *, device_t);
     89 
     90 int	wskbd_add_mux(int, struct wsmux_softc *);
     91 int	wsmouse_add_mux(int, struct wsmux_softc *);
     92 
     93 #endif /* NWSMUX > 0 */
     94