86 lines
2.9 KiB
C
86 lines
2.9 KiB
C
/* $NetBSD: mm58167var.h,v 1.6 2008/07/06 13:29:50 tsutsui Exp $ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Matthew Fredette.
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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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _MM58167VAR_H
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#define _MM58167VAR_H
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/*
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* Driver support for the National Semiconductor MM58167
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* time-of-day chip. See
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* http://www.national.com/ds/MM/MM58167B.pdf for data sheets.
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*/
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struct mm58167_softc {
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device_t mm58167_dev;
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/* Pointers to bus_space */
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bus_space_tag_t mm58167_regt;
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bus_space_handle_t mm58167_regh;
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/*
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* Pointers to MM58167 registers. All of these values are in
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* BCD.
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*/
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/*
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* The most significant digit of this first value is the
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* milliseconds unit; least significant digit is undefined:
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*/
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bus_size_t mm58167_msec_xxx;
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/* both digits of this value make up centiseconds: */
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bus_size_t mm58167_csec;
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bus_size_t mm58167_sec;
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bus_size_t mm58167_min;
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bus_size_t mm58167_hour;
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bus_size_t mm58167_wday;
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bus_size_t mm58167_day;
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bus_size_t mm58167_mon;
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/*
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* The MM58167 has compare latches that line up with the
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* above, interrupt registers, etc., but we don't use them, so
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* we don't mention them here.
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*/
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bus_size_t mm58167_status; /* bad counter read status */
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bus_size_t mm58167_go; /* GO - start at integral seconds */
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/*
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* We keep a TODR handle in the softc to save
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* us from having to allocate it ourselves.
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* However, only mm58167.c should know this.
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*/
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struct todr_chip_handle _mm58167_todr_handle;
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};
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todr_chip_handle_t mm58167_attach(struct mm58167_softc *);
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#endif /* _MM58167VAR_H */
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