/* $NetBSD: mm58167var.h,v 1.6 2008/07/06 13:29:50 tsutsui Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Matthew Fredette.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _MM58167VAR_H
#define _MM58167VAR_H
/*
* Driver support for the National Semiconductor MM58167
* time-of-day chip. See
*
http://www.national.com/ds/MM/MM58167B.pdf for data sheets.
*/
struct mm58167_softc {
device_t mm58167_dev;
/* Pointers to bus_space */
bus_space_tag_t mm58167_regt;
bus_space_handle_t mm58167_regh;
/*
* Pointers to MM58167 registers. All of these values are in
* BCD.
*/
/*
* The most significant digit of this first value is the
* milliseconds unit; least significant digit is undefined:
*/
bus_size_t mm58167_msec_xxx;
/* both digits of this value make up centiseconds: */
bus_size_t mm58167_csec;
bus_size_t mm58167_sec;
bus_size_t mm58167_min;
bus_size_t mm58167_hour;
bus_size_t mm58167_wday;
bus_size_t mm58167_day;
bus_size_t mm58167_mon;
/*
* The MM58167 has compare latches that line up with the
* above, interrupt registers, etc., but we don't use them, so
* we don't mention them here.
*/
bus_size_t mm58167_status; /* bad counter read status */
bus_size_t mm58167_go; /* GO - start at integral seconds */
/*
* We keep a TODR handle in the softc to save
* us from having to allocate it ourselves.
* However, only mm58167.c should know this.
*/
struct todr_chip_handle _mm58167_todr_handle;
};
todr_chip_handle_t mm58167_attach(struct mm58167_softc *);
#endif /* _MM58167VAR_H */
