1 /* $NetBSD: lcdkp_subr.h,v 1.3 2011/05/14 02:58:27 rmind Exp $ */
2
3 /*
4 * Copyright (c) 2002 Dennis I. Chernoivanov
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 #ifndef _DEV_IC_LCDKP_SUBR_H_
31 #define _DEV_IC_LCDKP_SUBR_H_
32
33 #ifdef _KERNEL
34
35 /* Key code translation */
36 struct lcdkp_xlate {
37 u_int8_t x_keycode;
38 u_int8_t x_outcode;
39 };
40
41 /* Keypad control structure */
42 struct lcdkp_chip {
43 bus_space_tag_t sc_iot;
44 bus_space_handle_t sc_ioh; /* keypad i/o register */
45
46 #define LCDKP_HAS_BUF 0x1
47 u_char sc_flags;
48 u_int8_t sc_buf; /* pending character */
49
50 u_int8_t sc_knum; /* number of buttons */
51 struct lcdkp_xlate *sc_kpad; /* recognized keycodes */
52
53 u_int8_t (* sc_rread)(bus_space_tag_t, bus_space_handle_t);
54
55 kmutex_t sc_lock;
56 };
57
58 #define lcdkp_dr_read(sc) \
59 (sc)->sc_rread((sc)->sc_iot, (sc)->sc_ioh);
60
61 void lcdkp_attach_subr(struct lcdkp_chip *);
62 int lcdkp_scankey(struct lcdkp_chip *);
63 int lcdkp_readkey(struct lcdkp_chip *, u_int8_t *);
64
65 #endif /* _KERNEL */
66
67 #endif /* _DEV_IC_LCDKP_SUBR_H_ */
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