2003-06-23 15:00:59 +04:00
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/* $NetBSD: lcdkp_subr.h,v 1.2 2003/06/23 11:01:58 martin Exp $ */
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2003-01-20 04:26:12 +03:00
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/*
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* Copyright (c) 2002 Dennis I. Chernoivanov
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _DEV_IC_LCDKP_SUBR_H_
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#define _DEV_IC_LCDKP_SUBR_H_
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#ifdef _KERNEL
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2003-06-23 15:00:59 +04:00
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#include "opt_multiprocessor.h"
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2003-01-20 04:26:12 +03:00
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#include <sys/lock.h>
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/* Key code translation */
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struct lcdkp_xlate {
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u_int8_t x_keycode;
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u_int8_t x_outcode;
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};
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/* Keypad control structure */
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struct lcdkp_chip {
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bus_space_tag_t sc_iot;
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bus_space_handle_t sc_ioh; /* keypad i/o register */
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#define LCDKP_HAS_BUF 0x1
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u_char sc_flags;
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u_int8_t sc_buf; /* pending character */
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u_int8_t sc_knum; /* number of buttons */
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struct lcdkp_xlate *sc_kpad; /* recognized keycodes */
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u_int8_t (* sc_rread)(bus_space_tag_t, bus_space_handle_t);
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#if defined(MULTIPROCESSOR)
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struct simplelock sc_lock;
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#endif
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};
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#define lcdkp_dr_read(sc) \
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(sc)->sc_rread((sc)->sc_iot, (sc)->sc_ioh);
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#if defined(MULTIPROCESSOR)
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#define lcdkp_lock(sc) simple_lock(&(sc)->sc_lock)
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#define lcdkp_unlock(sc) simple_unlock(&(sc)->sc_lock)
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#define lcdkp_lockaddr(sc) (&(sc)->sc_lock)
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#define lcdkp_lock_init(sc) simple_lock_init(&(sc)->sc_lock)
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#else
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#define lcdkp_lock(sc) ((void)0)
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#define lcdkp_unlock(sc) ((void)0)
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#define lcdkp_lockaddr(sc) (NULL)
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#define lcdkp_lock_init(sc) ((void)0)
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#endif
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void lcdkp_attach_subr(struct lcdkp_chip *);
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int lcdkp_scankey(struct lcdkp_chip *);
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int lcdkp_readkey(struct lcdkp_chip *, u_int8_t *);
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#endif /* _KERNEL */
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#endif /* _DEV_IC_LCDKP_SUBR_H_ */
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