NetBSD/sys/dev/ic/lcdkp_subr.h

83 lines
2.8 KiB
C

/* $NetBSD: lcdkp_subr.h,v 1.1 2003/01/20 01:26:12 soren Exp $ */
/*
* Copyright (c) 2002 Dennis I. Chernoivanov
* 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.
*/
#ifndef _DEV_IC_LCDKP_SUBR_H_
#define _DEV_IC_LCDKP_SUBR_H_
#ifdef _KERNEL
#include <sys/lock.h>
/* Key code translation */
struct lcdkp_xlate {
u_int8_t x_keycode;
u_int8_t x_outcode;
};
/* Keypad control structure */
struct lcdkp_chip {
bus_space_tag_t sc_iot;
bus_space_handle_t sc_ioh; /* keypad i/o register */
#define LCDKP_HAS_BUF 0x1
u_char sc_flags;
u_int8_t sc_buf; /* pending character */
u_int8_t sc_knum; /* number of buttons */
struct lcdkp_xlate *sc_kpad; /* recognized keycodes */
u_int8_t (* sc_rread)(bus_space_tag_t, bus_space_handle_t);
#if defined(MULTIPROCESSOR)
struct simplelock sc_lock;
#endif
};
#define lcdkp_dr_read(sc) \
(sc)->sc_rread((sc)->sc_iot, (sc)->sc_ioh);
#if defined(MULTIPROCESSOR)
#define lcdkp_lock(sc) simple_lock(&(sc)->sc_lock)
#define lcdkp_unlock(sc) simple_unlock(&(sc)->sc_lock)
#define lcdkp_lockaddr(sc) (&(sc)->sc_lock)
#define lcdkp_lock_init(sc) simple_lock_init(&(sc)->sc_lock)
#else
#define lcdkp_lock(sc) ((void)0)
#define lcdkp_unlock(sc) ((void)0)
#define lcdkp_lockaddr(sc) (NULL)
#define lcdkp_lock_init(sc) ((void)0)
#endif
void lcdkp_attach_subr(struct lcdkp_chip *);
int lcdkp_scankey(struct lcdkp_chip *);
int lcdkp_readkey(struct lcdkp_chip *, u_int8_t *);
#endif /* _KERNEL */
#endif /* _DEV_IC_LCDKP_SUBR_H_ */