67 lines
2.6 KiB
C
67 lines
2.6 KiB
C
/*-
|
|
* Copyright (c) 2003 Izumi Tsutsui. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* from: NetBSD: mc146818var.h,v 1.3 2003/11/24 06:20:40 tsutsui Exp
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
struct mc146818_softc {
|
|
bus_space_tag_t sc_bst; /* bus space tag */
|
|
bus_space_handle_t sc_bsh; /* bus space handle */
|
|
|
|
struct mtx sc_mtx; /* hardware mutex */
|
|
|
|
u_char sc_rega; /* register A */
|
|
u_char sc_regb; /* register B */
|
|
|
|
u_int sc_year0; /* year counter offset */
|
|
u_int sc_flag; /* MD flags */
|
|
#define MC146818_NO_CENT_ADJUST 0x0001 /* don't adjust century */
|
|
#define MC146818_BCD 0x0002 /* use BCD mode */
|
|
#define MC146818_12HR 0x0004 /* use AM/PM mode */
|
|
|
|
/* MD chip register read/write functions */
|
|
u_int (*sc_mcread)(device_t, u_int);
|
|
void (*sc_mcwrite)(device_t, u_int, u_int);
|
|
/* MD century get/set functions */
|
|
u_int (*sc_getcent)(device_t);
|
|
void (*sc_setcent)(device_t, u_int);
|
|
};
|
|
|
|
/* Default read/write functions */
|
|
u_int mc146818_def_read(device_t, u_int);
|
|
void mc146818_def_write(device_t, u_int, u_int);
|
|
|
|
/* Chip attach function */
|
|
int mc146818_attach(device_t);
|
|
|
|
/* Methods for the clock interface */
|
|
#ifdef notyet
|
|
int mc146818_getsecs(device_t, int *);
|
|
#endif
|
|
int mc146818_gettime(device_t, struct timespec *);
|
|
int mc146818_settime(device_t, struct timespec *);
|