sys/dev/wscons/wseventvar.h

   1 /* $NetBSD: wseventvar.h,v 1.14 2009/01/15 04:22:11 yamt 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 /*
  74  * Internal "wscons_event" queue interface for the keyboard and mouse drivers.
  75  * The drivers are expected not to place events in the queue above spltty(),
  76  * i.e., are expected to run off serial ports or similar devices.
  77  */
  78
  79 struct wseventvar {
  80         u_int   get;            /* get (read) index (modified synchronously) */
  81         volatile u_int put;     /* put (write) index (modified by interrupt) */
  82         struct selinfo sel;     /* process selecting */
  83         struct proc *io;        /* process that opened queue (can get SIGIO) */
  84         void    *sih;           /* soft interrupt handle for signals */
  85         int     wanted;         /* wake up on input ready */
  86         int     async;          /* send SIGIO on input ready */
  87         struct wscons_event *q; /* circular buffer (queue) of events */
  88         int     version;        /* event version */
  89 };
  90
  91 void    wsevent_init(struct wseventvar *, struct proc *);
  92 void    wsevent_fini(struct wseventvar *);
  93 int     wsevent_read(struct wseventvar *, struct uio *, int);
  94 int     wsevent_poll(struct wseventvar *, int, struct lwp *);
  95 int     wsevent_kqfilter(struct wseventvar *, struct knote *);
  96 void    wsevent_wakeup(struct wseventvar *);
  97 int     wsevent_inject(struct wseventvar *, struct wscons_event *, size_t);
  98 int     wsevent_setversion(struct wseventvar *, int);
  99
 100 /*
 101  * COMPAT_50
 102  */
 103 #include <compat/sys/time.h>
 104
 105 struct owscons_event {
 106         u_int type;
 107         int value;
 108         struct timespec50 time;
 109 };
 110
 111 #define WSMUXIO_OINJECTEVENT    _IOW('W', 96, struct owscons_event)
 112