/*      $NetBSD: mc146818var.h,v 1.8 2024/03/06 02:31:44 thorpej Exp $  */

/*-
* 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.
*
* 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.
*/

#ifndef _DEV_IC_MC146818VAR_H_
#define _DEV_IC_MC146818VAR_H_

struct mc146818_softc {
       device_t sc_dev;

       bus_space_tag_t sc_bst;                 /* bus space tag */
       bus_space_handle_t sc_bsh;              /* bus space handle */

       struct todr_chip_handle sc_handle;      /* TODR handle */
       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)(struct mc146818_softc *, u_int);
       void (*sc_mcwrite)(struct mc146818_softc *, u_int, u_int);
       /* MD century get/set functions */
       u_int (*sc_getcent)(struct mc146818_softc *);
       void (*sc_setcent)(struct mc146818_softc *, u_int);
};

void    mc146818_attach(struct mc146818_softc *);
int     mc146818_gettime_ymdhms(todr_chip_handle_t, struct clock_ymdhms *);
int     mc146818_settime_ymdhms(todr_chip_handle_t, struct clock_ymdhms *);

#endif /* _DEV_IC_MC146818VAR_H_ */