1 /* $NetBSD: mc146818var.h,v 1.4 2005/12/11 12:21:27 christos Exp $ */ 2 3 /* 4 * Copyright (c) 2003 Izumi Tsutsui. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 struct mc146818_softc { 30 struct device sc_dev; 31 32 bus_space_tag_t sc_bst; /* bus space tag */ 33 bus_space_handle_t sc_bsh; /* bus space handle */ 34 35 struct todr_chip_handle sc_handle; /* TODR handle */ 36 u_int sc_year0; /* year counter offset */ 37 u_int sc_flag; /* MD flags */ 38 #define MC146818_NO_CENT_ADJUST 0x0001 /* don't adjust century */ 39 #define MC146818_BCD 0x0002 /* use BCD mode */ 40 #define MC146818_12HR 0x0004 /* use AM/PM mode */ 41 42 /* MD chip register read/write functions */ 43 u_int (*sc_mcread)(struct mc146818_softc *, u_int); 44 void (*sc_mcwrite)(struct mc146818_softc *, u_int, u_int); 45 /* MD century get/set functions */ 46 u_int (*sc_getcent)(struct mc146818_softc *); 47 void (*sc_setcent)(struct mc146818_softc *, u_int); 48 }; 49 50 void mc146818_attach(struct mc146818_softc *); 51