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66 lines
2.5 KiB
C
66 lines
2.5 KiB
C
/*-
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* Copyright (c) 2003 Izumi Tsutsui. 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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*
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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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* $NetBSD: mc146818var.h,v 1.7 2008/05/14 13:29:29 tsutsui Exp $
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*
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* $FreeBSD$
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*/
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struct mc146818_softc {
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bus_space_tag_t sc_bst; /* bus space tag */
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bus_space_handle_t sc_bsh; /* bus space handle */
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struct mtx sc_mtx; /* hardware mutex */
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u_char sc_rega; /* register A */
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u_char sc_regb; /* register B */
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u_int sc_year0; /* year counter offset */
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u_int sc_flag; /* MD flags */
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#define MC146818_NO_CENT_ADJUST 0x0001 /* don't adjust century */
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#define MC146818_BCD 0x0002 /* use BCD mode */
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#define MC146818_12HR 0x0004 /* use AM/PM mode */
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/* MD chip register read/write functions */
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u_int (*sc_mcread)(device_t dev, u_int reg);
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void (*sc_mcwrite)(device_t dev, u_int reg, u_int val);
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/* MD century get/set functions */
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u_int (*sc_getcent)(device_t dev);
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void (*sc_setcent)(device_t dev, u_int cent);
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};
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/* Default read/write functions */
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u_int mc146818_def_read(device_t dev, u_int reg);
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void mc146818_def_write(device_t dev, u_int reg, u_int val);
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/* Chip attach function */
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int mc146818_attach(device_t);
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/* Methods for the clock interface */
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#ifdef notyet
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int mc146818_getsecs(device_t dev, int *secp);
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#endif
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int mc146818_gettime(device_t dev, struct timespec *ts);
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int mc146818_settime(device_t dev, struct timespec *ts);
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