mm58167var.h

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    1 /*      $NetBSD: mm58167var.h,v 1.6 2008/07/06 13:29:50 tsutsui Exp $   */
    2 
    3 /*-
    4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Matthew Fredette.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   29  * POSSIBILITY OF SUCH DAMAGE.
   30  */
   31 
   32 #ifndef _MM58167VAR_H
   33 #define _MM58167VAR_H
   34 
   35 /*
   36  * Driver support for the National Semiconductor MM58167
   37  * time-of-day chip.  See
   38  * http://www.national.com/ds/MM/MM58167B.pdf for data sheets.
   39  */
   40 
   41 struct mm58167_softc {
   42         device_t        mm58167_dev;
   43 
   44         /* Pointers to bus_space */
   45         bus_space_tag_t         mm58167_regt;
   46         bus_space_handle_t      mm58167_regh;
   47 
   48         /*
   49          * Pointers to MM58167 registers.  All of these values are in
   50          * BCD.
   51          */
   52 
   53         /*
   54          * The most significant digit of this first value is the
   55          * milliseconds unit; least significant digit is undefined:
   56          */
   57         bus_size_t      mm58167_msec_xxx;
   58         /* both digits of this value make up centiseconds: */
   59         bus_size_t      mm58167_csec;
   60         bus_size_t      mm58167_sec;
   61         bus_size_t      mm58167_min;
   62         bus_size_t      mm58167_hour;
   63         bus_size_t      mm58167_wday;
   64         bus_size_t      mm58167_day;
   65         bus_size_t      mm58167_mon;
   66 
   67         /*
   68          * The MM58167 has compare latches that line up with the
   69          * above, interrupt registers, etc., but we don't use them, so
   70          * we don't mention them here.
   71          */
   72         bus_size_t      mm58167_status;         /* bad counter read status */
   73         bus_size_t      mm58167_go;             /* GO - start at integral seconds */
   74 
   75         /*
   76          * We keep a TODR handle in the softc to save
   77          * us from having to allocate it ourselves.
   78          * However, only mm58167.c should know this.
   79          */
   80         struct todr_chip_handle _mm58167_todr_handle;
   81 };
   82 
   83 todr_chip_handle_t mm58167_attach(struct mm58167_softc *);
   84 
   85 #endif  /* _MM58167VAR_H */

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FreeBSD/Linux Kernel Cross Reference sys/dev/ic/mm58167var.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/mm58167var.h