sys/dev/wscons/wsmuxvar.h

   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  */
  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         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  */
  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         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
  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 */