1 /*- 2 * Copyright (c) 2003 Izumi Tsutsui. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 * 24 * $NetBSD: mc146818var.h,v 1.7 2008/05/14 13:29:29 tsutsui Exp $ 25 * 26 * $FreeBSD$ 27 */ 28 29 struct mc146818_softc { 30 bus_space_tag_t sc_bst; /* bus space tag */ 31 bus_space_handle_t sc_bsh; /* bus space handle */ 32 33 struct mtx sc_mtx; /* hardware mutex */ 34 35 u_char sc_rega; /* register A */ 36 u_char sc_regb; /* register B */ 37 38 u_int sc_year0; /* year counter offset */ 39 40 u_int sc_flag; /* MD flags */ 41 #define MC146818_NO_CENT_ADJUST 0x0001 /* don't adjust century */ 42 #define MC146818_BCD 0x0002 /* use BCD mode */ 43 #define MC146818_12HR 0x0004 /* use AM/PM mode */ 44 45 /* MD chip register read/write functions */ 46 u_int (*sc_mcread)(device_t dev, u_int reg); 47 void (*sc_mcwrite)(device_t dev, u_int reg, u_int val); 48 /* MD century get/set functions */ 49 u_int (*sc_getcent)(device_t dev); 50 void (*sc_setcent)(device_t dev, u_int cent); 51 }; 52 53 /* Default read/write functions */ 54 u_int mc146818_def_read(device_t dev, u_int reg); 55 void mc146818_def_write(device_t dev, u_int reg, u_int val); 56 57 /* Chip attach function */ 58 int mc146818_attach(device_t); 59 60 /* Methods for the clock interface */ 61 #ifdef notyet 62 int mc146818_getsecs(device_t dev, int *secp); 63 #endif 64 int mc146818_gettime(device_t dev, struct timespec *ts); 65 int mc146818_settime(device_t dev, struct timespec *ts); 66