/*      $NetBSD: msvar.h,v 1.2 2008/03/28 18:19:56 tsutsui Exp $        */

/*-
* Copyright (c) 2001 Tsubai Masanari.  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.
* 3. The name of the author may not be used to endorse or promote products
*    derived from this software without specific prior written permission.
*
* 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.
*/

#define MS_S_BYTE       0               /* start byte */
#define MS_X_BYTE       1               /* second byte */
#define MS_Y_BYTE       2               /* third byte */
#define MS_DB_SIZE      3

#define MS_S_MARK       0x80            /* start mark (first byte)*/
#define MS_S_XSIGN      0x08            /* MSB(sign bit) of X */
#define MS_S_YSIGN      0x10            /* MSB(sign bit) of Y */
#define MS_S_SW1        0x01            /* left button is pressed */
#define MS_S_SW2        0x02            /* right button is pressed */
#define MS_S_SW3        0x04            /* middle button is pressed */

#define MS_X_DATA       0x7f            /* data bits of X (second byte) */
#define MS_Y_DATA       0x7f            /* data bits of Y (third byte) */

struct ms_softc {
       device_t sc_dev;
       bus_space_tag_t sc_bt;
       bus_space_handle_t sc_bh;
       device_t sc_wsmousedev;
       bus_size_t sc_offset; /* ms data port offset */
       int sc_ndata;
       u_char sc_buf[MS_DB_SIZE];
};

void ms_intr(struct ms_softc *);