1 /* $NetBSD: mc146818var.h,v 1.8 2024/03/06 02:31:44 thorpej 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 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef _DEV_IC_MC146818VAR_H_ 28 #define _DEV_IC_MC146818VAR_H_ 29 30 struct mc146818_softc { 31 device_t sc_dev; 32 33 bus_space_tag_t sc_bst; /* bus space tag */ 34 bus_space_handle_t sc_bsh; /* bus space handle */ 35 36 struct todr_chip_handle sc_handle; /* TODR handle */ 37 u_int sc_year0; /* year counter offset */ 38 u_int sc_flag; /* MD flags */ 39 #define MC146818_NO_CENT_ADJUST 0x0001 /* don't adjust century */ 40 #define MC146818_BCD 0x0002 /* use BCD mode */ 41 #define MC146818_12HR 0x0004 /* use AM/PM mode */ 42 43 /* MD chip register read/write functions */ 44 u_int (*sc_mcread)(struct mc146818_softc *, u_int); 45 void (*sc_mcwrite)(struct mc146818_softc *, u_int, u_int); 46 /* MD century get/set functions */ 47 u_int (*sc_getcent)(struct mc146818_softc *); 48 void (*sc_setcent)(struct mc146818_softc *, u_int); 49 }; 50 51 void mc146818_attach(struct mc146818_softc *); 52 int mc146818_gettime_ymdhms(todr_chip_handle_t, struct clock_ymdhms *); 53 int mc146818_settime_ymdhms(todr_chip_handle_t, struct clock_ymdhms *); 54 55 #endif /* _DEV_IC_MC146818VAR_H_ */ 56