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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1997-1998 by Sun Microsystems, Inc.
* All rights reserved.
*/
#ifndef _TODMOSTEK_H
#define _TODMOSTEK_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
extern caddr_t v_eeprom_addr;
extern caddr_t v_timecheck_addr;
#define V_TOD_OFFSET 0x1FF0
#define V_TODCLKADDR (v_eeprom_addr+V_TOD_OFFSET)
#define V_TIMECHECKADDR (v_timecheck_addr+V_TOD_OFFSET)
/*
* Definitions for the Mostek 48T59 clock chip. We use this chip as
* our TOD clock. Clock interrupts are generated by a separate timer
* circuit.
*/
#define YRBASE 68 /* 1968 - what year 0 in chip represents */
#ifndef _ASM
struct mostek48T59 {
volatile uchar_t clk_flags; /* flags register */
volatile uchar_t clk_unused; /* unused */
volatile uchar_t clk_alm_secs; /* alarm - seconds 0-59 */
volatile uchar_t clk_alm_mins; /* alarm - minutes 0-59 */
volatile uchar_t clk_alm_hours; /* alarm - hours 0-23 */
volatile uchar_t clk_alm_day; /* alarm - day 1-31 */
volatile uchar_t clk_interrupts; /* interrupts register */
volatile uchar_t clk_watchdog; /* watchdog register */
volatile uchar_t clk_ctrl; /* ctrl register */
volatile uchar_t clk_sec; /* counter - seconds 0-59 */
volatile uchar_t clk_min; /* counter - minutes 0-59 */
volatile uchar_t clk_hour; /* counter - hours 0-23 */
volatile uchar_t clk_weekday; /* counter - weekday 1-7 */
volatile uchar_t clk_day; /* counter - day 1-31 */
volatile uchar_t clk_month; /* counter - month 1-12 */
volatile uchar_t clk_year; /* counter - year 0-99 */
};
#define CLOCK ((struct mostek48T59 *)(V_TODCLKADDR))
#define TIMECHECK_CLOCK ((struct mostek48T59 *)(V_TIMECHECKADDR))
#endif /* _ASM */
/*
* Bit masks for various operations and register limits.
*/
#define CLK_CTRL_WRITE 0x80
#define CLK_CTRL_READ 0x40
#define CLK_CTRL_SIGN 0x20
#define CLK_STOP 0x80
#define CLK_KICK 0x80
#define CLK_FREQT 0x40
#define CLK_MONTH_MASK 0x1f
#define CLK_DAY_MASK 0x3f
#define CLK_WEEKDAY_MASK 0x07
#define CLK_HOUR_MASK 0x3f
#define CLK_MIN_MASK 0x7f
#define CLK_SEC_MASK 0x7f
#define CLK_ALARM_ENABLE 0xa0
/*
* If the passed in time is non-zero, enable the watchdog and set the scale
* to seconds
*/
#define CLK_WATCHDOG_ENABLE 0x80
#define CLK_WATCHDOG_1SEC 0x02
#define CLK_WATCHDOG_TMASK 0x1f
#define CLK_WATCHDOG_BITS(n) (((n) & CLK_WATCHDOG_TMASK) ? \
((((n) & CLK_WATCHDOG_TMASK) << 2) | \
CLK_WATCHDOG_ENABLE | CLK_WATCHDOG_1SEC) : 0)
#ifdef __cplusplus
}
#endif
#endif /* !_TODMOSTEK_H */
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