1 /* $NetBSD: mc146818var.h,v 1.3 2003/11/24 06:20:40 tsutsui 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 *);
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