FreeBSD/Linux Kernel Cross Reference
sys/dev/wscons/wsmuxvar.h

     /*      $NetBSD: wsmuxvar.h,v 1.9 2003/06/29 22:31:06 fvdl Exp $        */
     
     /*
      * Copyright (c) 1998 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * Author: Lennart Augustsson <augustss@carlstedt.se>
      *         Carlstedt Research & Technology
      *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *        This product includes software developed by the NetBSD
     *        Foundation, Inc. and its contributors.
     * 4. Neither the name of The NetBSD Foundation nor the names of its
     *    contributors may be used to endorse or promote products derived
     *    from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     * POSSIBILITY OF SUCH DAMAGE.
     */
    
    /*
     * A ws event source, i.e., wskbd, wsmouse, or wsmux.
     */
    struct wsevsrc {
            struct device me_dv;
            const struct wssrcops *me_ops;  /* method pointers */
            struct wseventvar me_evar;      /* wseventvar opened directly */
            struct wseventvar *me_evp;      /* our wseventvar when open */
    #if NWSDISPLAY > 0
            struct device *me_dispdv;       /* our display if part of one */
    #endif
    #if NWSMUX > 0
            struct wsmux_softc *me_parent;  /* parent mux device */
            CIRCLEQ_ENTRY(wsevsrc) me_next; /* sibling pointers */
    #endif
    };
    
    /*
     * Methods that can be performed on an events source.  Usually called
     * from a wsmux.
     */
    struct wssrcops {
            int type;               /* device type: WSMUX_{MOUSE,KBD,MUX} */
            int (*dopen)(struct wsevsrc *, struct wseventvar *);
            int (*dclose)(struct wsevsrc *);
            int (*dioctl)(struct device *, u_long, caddr_t, int, struct proc *);
            int (*ddispioctl)(struct device *, u_long, caddr_t, int, struct proc *);
            int (*dsetdisplay)(struct device *, struct wsevsrc *);
    };
    
    #define wsevsrc_open(me, evp) \
            ((me)->me_ops->dopen((me), evp))
    #define wsevsrc_close(me) \
            ((me)->me_ops->dclose((me)))
    #define wsevsrc_ioctl(me, cmd, data, flag, p) \
            ((me)->me_ops->dioctl(&(me)->me_dv, cmd, (caddr_t)data, flag, p))
    #define wsevsrc_display_ioctl(me, cmd, data, flag, p) \
            ((me)->me_ops->ddispioctl(&(me)->me_dv, cmd, (caddr_t)data, flag, p))
    #define wsevsrc_set_display(me, arg) \
            ((me)->me_ops->dsetdisplay(&(me)->me_dv, arg))
    
    #if NWSMUX > 0
    struct wsmux_softc {
            struct wsevsrc sc_base;
            struct proc *sc_p;              /* open proc */
            CIRCLEQ_HEAD(, wsevsrc) sc_cld; /* list of children */
    #ifdef WSDISPLAY_COMPAT_RAWKBD
            int sc_rawkbd;                  /* A hack to remember the kbd mode */
    #endif
    };
    
    struct  wsmux_softc *wsmux_getmux(int);
    struct  wsmux_softc *wsmux_create(const char *, int);
    int     wsmux_attach_sc(struct wsmux_softc *, struct wsevsrc *);
    void    wsmux_detach_sc(struct wsevsrc *);
    int     wsmux_set_display(struct wsmux_softc *, struct device *);
    
    int     wskbd_add_mux(int, struct wsmux_softc *);
    int     wsmouse_add_mux(int, struct wsmux_softc *);
    
    #endif /* NWSMUX > 0 */

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