82 lines
3.1 KiB
C
82 lines
3.1 KiB
C
/* $NetBSD: ds1307reg.h,v 1.2 2005/12/11 12:21:22 christos Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 2003 Wasabi Systems, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Written by Steve C. Woodford for Wasabi Systems, Inc.
|
|
*
|
|
* 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 for the NetBSD Project by
|
|
* Wasabi Systems, Inc.
|
|
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
|
|
* or promote products derived from this software without specific prior
|
|
* written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
|
|
* 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_I2C_DS1307REG_H_
|
|
#define _DEV_I2C_DS1307REG_H_
|
|
|
|
/*
|
|
* DS1307 64x8 Serial Real-Time Clock
|
|
*/
|
|
|
|
#define DS1307_ADDR 0x68 /* Fixed I2C Slave Address */
|
|
|
|
#define DS1307_SECONDS 0x00
|
|
#define DS1307_MINUTES 0x01
|
|
#define DS1307_HOURS 0x02
|
|
#define DS1307_DAY 0x03
|
|
#define DS1307_DATE 0x04
|
|
#define DS1307_MONTH 0x05
|
|
#define DS1307_YEAR 0x06
|
|
#define DS1307_CONTROL 0x07
|
|
#define DS1307_NVRAM_START 0x08
|
|
#define DS1307_NVRAM_END 0x3f
|
|
|
|
#define DS1307_NRTC_REGS 8
|
|
#define DS1307_NVRAM_SIZE ((DS1307_NVRAM_END - DS1307_NVRAM_START) + 1)
|
|
|
|
/*
|
|
* Bit definitions.
|
|
*/
|
|
#define DS1307_SECONDS_CH (1u << 7) /* Clock Hold */
|
|
#define DS1307_SECONDS_MASK 0x7f
|
|
#define DS1307_MINUTES_MASK 0x7f
|
|
#define DS1307_HOURS_24HRS (1u << 6) /* Set for 24 hour mode */
|
|
#define DS1307_HOURS_12HRS_PM (1u << 5) /* If 12 hr mode, set = PM */
|
|
#define DS1307_HOURS_12MASK 0x1f
|
|
#define DS1307_HOURS_24MASK 0x3f
|
|
#define DS1307_DAY_MASK 0x07
|
|
#define DS1307_DATE_MASK 0x3f
|
|
#define DS1307_MONTH_MASK 0x1f
|
|
#define DS1307_CONTROL_OUT (1u << 7) /* OSC/OUT pin value */
|
|
#define DS1307_CONTROL_SQWE (1u << 4) /* Enable square wave output */
|
|
#define DS1307_CONTROL_1HZ 0
|
|
#define DS1307_CONTROL_4096HZ 1
|
|
#define DS1307_CONTROL_8192HZ 2
|
|
#define DS1307_CONTROL_32768HZ 3
|
|
|
|
#endif /* _DEV_I2C_DS1307REG_H_ */
|