1 /* $NetBSD: lcdkp_subr.h,v 1.2 2003/06/23 11:01:58 martin 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 #include "opt_multiprocessor.h" 35 #include <sys/lock.h> 36 37 /* Key code translation */ 38 struct lcdkp_xlate { 39 u_int8_t x_keycode; 40 u_int8_t x_outcode; 41 }; 42 43 /* Keypad control structure */ 44 struct lcdkp_chip { 45 bus_space_tag_t sc_iot; 46 bus_space_handle_t sc_ioh; /* keypad i/o register */ 47 48 #define LCDKP_HAS_BUF 0x1 49 u_char sc_flags; 50 u_int8_t sc_buf; /* pending character */ 51 52 u_int8_t sc_knum; /* number of buttons */ 53 struct lcdkp_xlate *sc_kpad; /* recognized keycodes */ 54 55 u_int8_t (* sc_rread)(bus_space_tag_t, bus_space_handle_t); 56 57 #if defined(MULTIPROCESSOR) 58 struct simplelock sc_lock; 59 #endif 60 }; 61 62 #define lcdkp_dr_read(sc) \ 63 (sc)->sc_rread((sc)->sc_iot, (sc)->sc_ioh); 64 65 #if defined(MULTIPROCESSOR) 66 #define lcdkp_lock(sc) simple_lock(&(sc)->sc_lock) 67 #define lcdkp_unlock(sc) simple_unlock(&(sc)->sc_lock) 68 #define lcdkp_lockaddr(sc) (&(sc)->sc_lock) 69 #define lcdkp_lock_init(sc) simple_lock_init(&(sc)->sc_lock) 70 #else 71 #define lcdkp_lock(sc) ((void)0) 72 #define lcdkp_unlock(sc) ((void)0) 73 #define lcdkp_lockaddr(sc) (NULL) 74 #define lcdkp_lock_init(sc) ((void)0) 75 #endif 76 77 void lcdkp_attach_subr(struct lcdkp_chip *); 78 int lcdkp_scankey(struct lcdkp_chip *); 79 int lcdkp_readkey(struct lcdkp_chip *, u_int8_t *); 80 81 #endif /* _KERNEL */ 82 83 #endif /* _DEV_IC_LCDKP_SUBR_H_ */ 84