/*      $OpenBSD: wsmuxvar.h,v 1.11 2019/02/18 17:39:14 anton Exp $     */
/*      $NetBSD: wsmuxvar.h,v 1.10 2005/04/30 03:47:12 augustss 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.
 *
 * 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 */
#define sc_displaydv    sc_base.me_dispdv
#endif
#if NWSMUX > 0
        struct wsmux_softc *me_parent;  /* parent mux device */
        TAILQ_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 device *);
};

#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 */
        TAILQ_HEAD(, wsevsrc) sc_cld;   /* list of children */
        struct rwlock sc_lock;          /* lock for sc_cld */
        u_int32_t sc_kbd_layout;        /* current layout of keyboard */
#ifdef WSDISPLAY_COMPAT_RAWKBD
        int sc_rawkbd;                  /* A hack to remember the kbd mode */
#endif
};

/*
 * configure defines
 */
#define WSMOUSEDEVCF_MUX                0

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 *);
uint32_t wsmux_get_layout(struct wsmux_softc *);
void    wsmux_set_layout(struct wsmux_softc *, uint32_t);

int     wskbd_add_mux(int, struct wsmux_softc *);
int     wsmouse_add_mux(int, struct wsmux_softc *);

#endif  /* NWSMUX > 0 */