51 lines
2.3 KiB
C
51 lines
2.3 KiB
C
/* $NetBSD: mc146818var.h,v 1.3 2003/11/24 06:20:40 tsutsui Exp $ */
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/*
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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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* 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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struct mc146818_softc {
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struct device sc_dev;
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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 todr_chip_handle sc_handle; /* TODR handle */
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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)(struct mc146818_softc *, u_int);
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void (*sc_mcwrite)(struct mc146818_softc *, u_int, u_int);
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/* MD century get/set functions */
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u_int (*sc_getcent)(struct mc146818_softc *);
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void (*sc_setcent)(struct mc146818_softc *, u_int);
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};
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void mc146818_attach(struct mc146818_softc *);
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