diff options
| author | simonb <simonb@NetBSD.org> | 2002-11-12 01:00:59 +0000 |
|---|---|---|
| committer | simonb <simonb@NetBSD.org> | 2002-11-12 01:00:59 +0000 |
| commit | 609018be94fde4e710c196a9ee4d79bde7fb162f (patch) | |
| tree | ba4f8c2737f45599e49868d9a0f433f653af1cf9 /sys/dev/smbus | |
| parent | 8243c6f1d3549d8893ec2ef94afe7389e95437ea (diff) | |
Register definitions for the Xicor X1241 2-wire RTC.
Diffstat (limited to 'sys/dev/smbus')
| -rw-r--r-- | sys/dev/smbus/x1241reg.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/sys/dev/smbus/x1241reg.h b/sys/dev/smbus/x1241reg.h new file mode 100644 index 00000000000..4593d54a41f --- /dev/null +++ b/sys/dev/smbus/x1241reg.h @@ -0,0 +1,75 @@ +/* $NetBSD: x1241reg.h,v 1.1 2002/11/12 01:00:59 simonb Exp $ */ + +/* + * Copyright 2002 Wasabi Systems, Inc. + * All rights reserved. + * + * Written by Simon Burge 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_SMBUS_X1241REG_H_ +#define _DEV_SMBUS_X1241REG_H_ + +/* + * The X1241 appears at two fixed addresses on the SMBus, one each for + * the EEPROM array and the real time clock. + */ +#define X1241_ARRAY_SLAVEADDR 0x57 +#define X1241_RTC_SLAVEADDR 0x6f + +#define X1241REG_BL 0x10 /* Control register */ +#define X1241REG_SC 0x30 /* Seconds */ +#define X1241REG_MN 0x31 /* Minutes */ +#define X1241REG_HR 0x32 /* Hours */ +#define X1241REG_DT 0x33 /* Day of month */ +#define X1241REG_MO 0x34 /* Month */ +#define X1241REG_YR 0x35 /* Year */ +#define X1241REG_DW 0x36 /* Day of Week */ +#define X1241REG_Y2K 0x37 /* Year 2K */ +#define X1241REG_SR 0x3f /* Status register */ + +/* Register bits for the status register */ +#define X1241REG_SR_BAT 0x80 /* currently on battery power */ +#define X1241REG_SR_RWEL 0x04 /* r/w latch is enabled, can write RTC */ +#define X1241REG_SR_WEL 0x02 /* r/w latch is unlocked, can enable r/w now */ +#define X1241REG_SR_RTCF 0x01 /* clock failed */ + +/* Register bits for the block protect register */ +#define X1241REG_BL_BP2 0x80 /* block protect 2 */ +#define X1241REG_BL_BP1 0x40 /* block protect 1 */ +#define X1241REG_BL_BP0 0x20 /* block protect 0 */ +#define X1241REG_BL_WD1 0x10 /* watchdog timeout 0 */ +#define X1241REG_BL_WD0 0x08 /* watchdog timeout 1 */ + +/* Register bits for the hours register */ +#define X1241REG_HR_MIL 0x80 /* military time format */ + +#endif /* _DEV_SMBUS_X1241REG_H_ */ |
