/*      $OpenBSD: sunmsvar.h,v 1.1 2009/05/20 18:22:33 miod Exp $       */

/*
 * Copyright (c) 2002, 2009, Miodrag Vallat
 * All rights reserved.
 *
 * 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 AUTHOR ``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 AUTHOR 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.
 */

struct sunms_softc {
        struct  device sc_dev;

        /*
         * State of input translator
         */
        uint    sc_state;               /* current FSM state */
#define STATE_RATE_CHANGE       0 /* baud rate change pending */
#define STATE_PROBING           1 /* checking packets after speed change */
#define STATE_DECODING          2 /* normal operation */
        uint    sc_brk;                 /* breaks in a row */

        int     sc_pktlen;              /* packet length */
        int     sc_byteno;              /* current packet position */
        int     sc_mb;                  /* mouse button state */
        int     sc_dx;                  /* delta-x */
        int     sc_dy;                  /* delta-y */

        uint    sc_bps;                 /* current link speed */
        struct timeval sc_lastbpschange;

        struct timeout sc_abort_tmo;

        struct device *sc_wsmousedev;

        void    (*sc_speed_change)(void *, uint);
};

#define INIT_SPEED      9600

void    sunms_attach(struct sunms_softc *, const struct wsmouse_accessops *);
int     sunms_ioctl(void *, u_long, caddr_t, int, struct proc *);

void    sunms_abort_input(void *);
void    sunms_input(struct sunms_softc *, int c);
void    sunms_speed_change(struct sunms_softc *);