1 /* $NetBSD: mm58167var.h,v 1.1 2001/04/10 12:50:18 fredette 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _MM58167VAR_H 40 #define _MM58167VAR_H 41 42 /* 43 * Driver support for the National Semiconductor MM58167 44 * time-of-day chip. See 45 * http://www.national.com/ds/MM/MM58167B.pdf for data sheets. 46 */ 47 48 struct mm58167_softc { 49 struct device mm58167_dev; 50 51 /* Pointers to bus_space */ 52 bus_space_tag_t mm58167_regt; 53 bus_space_handle_t mm58167_regh; 54 55 /* 56 * Pointers to MM58167 registers. All of these values are in 57 * BCD. 58 */ 59 60 /* 61 * The most significant digit of this first value is the 62 * milliseconds unit; least significant digit is undefined: 63 */ 64 bus_size_t mm58167_msec_xxx; 65 /* both digits of this value make up centiseconds: */ 66 bus_size_t mm58167_csec; 67 bus_size_t mm58167_sec; 68 bus_size_t mm58167_min; 69 bus_size_t mm58167_hour; 70 bus_size_t mm58167_wday; 71 bus_size_t mm58167_day; 72 bus_size_t mm58167_mon; 73 74 /* 75 * The MM58167 has compare latches that line up with the 76 * above, interrupt registers, etc., but we don't use them, so 77 * we don't mention them here. 78 */ 79 bus_size_t mm58167_status; /* bad counter read status */ 80 bus_size_t mm58167_go; /* GO - start at integral seconds */ 81 82 /* 83 * We keep a TODR handle in the softc to save 84 * us from having to allocate it ourselves. 85 * However, only mm58167.c should know this. 86 */ 87 struct todr_chip_handle _mm58167_todr_handle; 88 }; 89 90 todr_chip_handle_t mm58167_attach __P((struct mm58167_softc *)); 91 92 #endif /* _MM58167VAR_H */ 93