91 lines
4.4 KiB
C
91 lines
4.4 KiB
C
/* $NetBSD: m41t81reg.h,v 1.2 2003/07/10 05:34:30 simonb Exp $ */
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/*
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* Copyright 2002 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Simon Burge for Wasabi Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _DEV_SMBUS_M41T81REG_H_
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#define _DEV_SMBUS_M41T81REG_H_
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/* The M41T81 appears at a fixed addresses on the SMBus */
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#define M41T81_SLAVEADDR 0x68
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#define M41T81_PARTSEC 0x00 /* Partial seconds (0.01s resolution) - BCD */
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#define M41T81_SEC 0x01 /* Seconds - BCD */
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#define M41T81_SEC_ST 0x80 /* Stop Bit */
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#define M41T81_MIN 0x02 /* Minutes - BCD */
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#define M41T81_HOUR 0x03 /* Century/Hours - BCD */
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#define M41T81_HOUR_MASK 0x3f /* Mask for hours */
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#define M41T81_HOUR_CB 0x40 /* Century Bit */
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#define M41T81_HOUR_CEB 0x80 /* Century Enable Bit */
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#define M41T81_DAY 0x04 /* Day of Week */
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#define M41T81_DATE 0x05 /* Date: Day of Month - BCD */
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#define M41T81_MON 0x06 /* Month - BCD */
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#define M41T81_YEAR 0x07 /* Year - BCD */
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#define M41T81_CTL 0x08 /* Control */
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#define M41T81_CTL_CAL 0x1f /* Calibration mask */
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#define M41T81_CTL_S 0x20 /* Sign Bit */
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#define M41T81_CTL_FT 0x40 /* Frequency Test Bit */
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#define M41T81_CTL_OUT 0x80 /* Output Level */
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#define M41T81_WDOG 0x09 /* Watchdog */
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#define M41T81_WDOG_RB 0x03 /* Watchdog Resolution */
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#define M41T81_WDOG_RB_1_16 0x00 /* 1/16th second */
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#define M41T81_WDOG_RB_1_4 0x01 /* 1/4th second */
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#define M41T81_WDOG_RB_1 0x02 /* 1 second */
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#define M41T81_WDOG_RB_4 0x03 /* 4 seconds */
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#define M41T81_WDOG_BMB_SHIFT 2 /* Watchdog Multiplier */
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#define M41T81_WDOG_BMB_MASK 0x7c
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#define M41T81_ALM_MON 0x0a /* Alarm Month - BCD */
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#define M41T81_ALM_MON_ABE 0x20 /* Alarm in Battery Back-up Mode Enable Bit */
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#define M41T81_ALM_MON_SQWE 0x40 /* Square Wave Enable */
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#define M41T81_ALM_MON_AFE 0x80 /* Alarm Flag Enable Flag */
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#define M41T81_ALM_DATE 0x0b /* Alarm Date - BCD */
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#define M41T81_ALM_DATE_RPT5 0x40 /* Alarm Repeat Mode Bit 5 */
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#define M41T81_ALM_DATE_RPT4 0x80 /* Alarm Repeat Mode Bit 4 */
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#define M41T81_ALM_HOUR 0x0c /* Alarm Hour - BCD */
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#define M41T81_ALM_HOUR_HT 0x40 /* Half Update Bit */
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#define M41T81_ALM_HOUR_RPT3 0x80 /* Alarm Repeat Mode Bit 3 */
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#define M41T81_ALM_MIN 0x0d /* Alarm Minutes - BCD */
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#define M41T81_ALM_MIN_RPT3 0x80 /* Alarm Repeat Mode Bit 2 */
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#define M41T81_ALM_SEC 0x0e /* Alarm Seconds - BCD */
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#define M41T81_ALM_SEC_RPT3 0x80 /* Alarm Repeat Mode Bit 1 */
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#define M41T81_FLAGS 0x0f
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#define M41T81_SQW 0x13 /* Square Wave Frequency */
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#define M41T81_SQW_RS_SHIFT 4 /* SQW Frequency */
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#define M41T81_SQW_RS_MASK 0x0f /* For a non-zero value 'v',
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the square wave frequency
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is 2^(16-v) Hz */
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#endif /* _DEV_SMBUS_M41T81REG_H_ */
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