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      1 /*
      2  * Copyright (c) 2005 Jesse Off.  All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     16  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     23  * SUCH DAMAGE.
     24  */
     25 
     26 #ifndef _DEV_IC_MATRIXKPVAR_H_
     27 #define _DEV_IC_MATRIXKPVAR_H_
     28 
     29 #define MAXNKEYS	64
     30 #define FOR_KEYS(x, y)	\
     31 	for((x) = 0; (x) < ((MAXNKEYS + 31) / 32); (x)++) y
     32 
     33 struct matrixkp_softc {
     34 	int mxkp_nkeys;
     35 	u_int32_t mxkp_pressed[(MAXNKEYS + 31) / 32];
     36 	int poll_freq;
     37 	u_int32_t debounce_stable_ms;
     38 	void (*mxkp_scankeys)(struct matrixkp_softc *, u_int32_t *);
     39 	void (*mxkp_event)(struct matrixkp_softc *, u_int32_t *, u_int32_t *);
     40 #define	MXKP_NODEBOUNCE	0x1
     41 	u_int32_t sc_flags;
     42 	u_int32_t sc_enabled;
     43 	device_t sc_dev;
     44 	device_t sc_wskbddev;
     45 	struct callout sc_callout;
     46 };
     47 
     48 void mxkp_attach(struct matrixkp_softc *);
     49 void mxkp_poll(void *);
     50 void mxkp_debounce(struct matrixkp_softc *, u_int32_t *, u_int32_t *);
     51 void mxkp_wskbd_event(struct matrixkp_softc *, u_int32_t *, u_int32_t *);
     52 int  mxkp_enable(void *, int);
     53 void mxkp_set_leds(void *, int);
     54 int  mxkp_ioctl(void *, u_long, void *, int, struct lwp *);
     55 
     56 extern const struct wskbd_accessops mxkp_accessops;
     57 
     58 #endif
     59