/*
* Copyright (c) 2005 Jesse Off.  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 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 AUTHOR 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.
*/

#ifndef _DEV_IC_MATRIXKPVAR_H_
#define _DEV_IC_MATRIXKPVAR_H_

#define MAXNKEYS        64
#define FOR_KEYS(x, y)  \
       for((x) = 0; (x) < ((MAXNKEYS + 31) / 32); (x)++) y

struct matrixkp_softc {
       int mxkp_nkeys;
       u_int32_t mxkp_pressed[(MAXNKEYS + 31) / 32];
       int poll_freq;
       u_int32_t debounce_stable_ms;
       void (*mxkp_scankeys)(struct matrixkp_softc *, u_int32_t *);
       void (*mxkp_event)(struct matrixkp_softc *, u_int32_t *, u_int32_t *);
#define MXKP_NODEBOUNCE 0x1
       u_int32_t sc_flags;
       u_int32_t sc_enabled;
       device_t sc_dev;
       device_t sc_wskbddev;
       struct callout sc_callout;
};

void mxkp_attach(struct matrixkp_softc *);
void mxkp_poll(void *);
void mxkp_debounce(struct matrixkp_softc *, u_int32_t *, u_int32_t *);
void mxkp_wskbd_event(struct matrixkp_softc *, u_int32_t *, u_int32_t *);
int  mxkp_enable(void *, int);
void mxkp_set_leds(void *, int);
int  mxkp_ioctl(void *, u_long, void *, int, struct lwp *);

extern const struct wskbd_accessops mxkp_accessops;

#endif