/*      $NetBSD: rtclock_var.h,v 1.12 2021/08/21 09:59:46 andvar Exp $  */

/*
 * Copyright 1993, 1994 Masaru Oki
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by Masaru Oki.
 * 4. 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.
 */

/*
 * Should be split to _reg.h and _var.h
 */

#ifndef _RTCLOCKVAR_H_
#define _RTCLOCKVAR_H_

struct rtc_softc {
        bus_space_tag_t         sc_bst;
        bus_space_handle_t      sc_bht;
        struct todr_chip_handle sc_todr;
};

/*
 * commands written to mode, HOLD before reading the clock,
 * FREE after done reading.
 */

#define RTC_HOLD_CLOCK  0
#define RTC_FREE_CLOCK  8

#define RTC_REG(x) (bus_space_read_1(rtc->sc_bst, rtc->sc_bht, (x)) & 0x0f)
#define RTC_WRITE(x,v) bus_space_write_1(rtc->sc_bst, rtc->sc_bht, (x), (v))

#define RTC_ADDR        0xe8a000

/* RTC register bank 0 */
#define RTC_SEC         0x01
#define RTC_SEC10       0x03
#define RTC_MIN         0x05
#define RTC_MIN10       0x07
#define RTC_HOUR        0x09
#define RTC_HOUR10      0x0b
#define RTC_WEEK        0x0d
#define RTC_DAY         0x0f
#define RTC_DAY10       0x11
#define RTC_MON         0x13
#define RTC_MON10       0x15
#define RTC_YEAR        0x17
#define RTC_YEAR10      0x19
#define RTC_MODE        0x1b
#define RTC_TEST        0x1d
#define RTC_RESET       0x1f

/* RTC register bank 1 */
#define RTC_CLKOUT      0x01
#define RTC_ADJUST      0x03
#define RTC_AL_MIN      0x05
#define RTC_AL_MIN10    0x07
#define RTC_AL_HOUR     0x09
#define RTC_AL_HOUR10   0x0b
#define RTC_AL_WEEK     0x0d
#define RTC_AL_DAY      0x0f
#define RTC_AL_DAY10    0x11
#define RTC_UNUSED1     0x13
#define RTC_AMPM        0x15
#define RTC_LEAP        0x17
#define RTC_UNUSED2     0x19

#define RTC_BASE_YEAR   1980

#endif /* _RTCLOCKVAR_H_ */