106 lines
3.2 KiB
C
106 lines
3.2 KiB
C
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/*
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* (C) Copyright 2001
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* Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* Digital Thermometers and Thermostats.
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*/
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#ifndef _DTT_H_
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#define _DTT_H_
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#if defined(CONFIG_DTT_LM75) || \
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defined(CONFIG_DTT_DS1621) || \
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defined(CONFIG_DTT_ADM1021)
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#define CONFIG_DTT /* We have a DTT */
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#ifndef CONFIG_DTT_ADM1021
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#define DTT_COMMERCIAL_MAX_TEMP 70 /* 0 - +70 C */
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#define DTT_INDUSTRIAL_MAX_TEMP 85 /* -40 - +85 C */
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#define DTT_AUTOMOTIVE_MAX_TEMP 105 /* -40 - +105 C */
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#ifndef CFG_DTT_MAX_TEMP
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#define CFG_DTT_MAX_TEMP DTT_COMMERCIAL_MAX_TEMP
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#endif
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#ifndef CFG_DTT_HYSTERESIS
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#define CFG_DTT_HYSTERESIS 5 /* 5 C */
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#endif
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#endif /* CONFIG_DTT_ADM1021 */
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extern int dtt_init (void);
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extern int dtt_read(int sensor, int reg);
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extern int dtt_write(int sensor, int reg, int val);
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extern int dtt_get_temp(int sensor);
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#endif
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#if defined(CONFIG_DTT_LM75)
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#define DTT_READ_TEMP 0x0
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#define DTT_CONFIG 0x1
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#define DTT_TEMP_HYST 0x2
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#define DTT_TEMP_SET 0x3
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#endif
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#if defined(CONFIG_DTT_DS1621)
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#define DTT_READ_TEMP 0xAA
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#define DTT_READ_COUNTER 0xA8
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#define DTT_READ_SLOPE 0xA9
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#define DTT_WRITE_START_CONV 0xEE
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#define DTT_WRITE_STOP_CONV 0x22
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#define DTT_TEMP_HIGH 0xA1
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#define DTT_TEMP_LOW 0xA2
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#define DTT_CONFIG 0xAC
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#endif
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#if defined(CONFIG_DTT_ADM1021)
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#define DTT_READ_LOC_VALUE 0x00
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#define DTT_READ_REM_VALUE 0x01
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#define DTT_READ_STATUS 0x02
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#define DTT_READ_CONFIG 0x03
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#define DTT_READ_CONVRATE 0x04
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#define DTT_READ_LOC_HIGHLIM 0x05
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#define DTT_READ_LOC_LOWLIM 0x06
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#define DTT_READ_REM_HIGHLIM 0x07
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#define DTT_READ_REM_LOWLIM 0x08
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#define DTT_READ_DEVID 0xfe
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#define DTT_WRITE_CONFIG 0x09
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#define DTT_WRITE_CONVRATE 0x0a
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#define DTT_WRITE_LOC_HIGHLIM 0x0b
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#define DTT_WRITE_LOC_LOWLIM 0x0c
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#define DTT_WRITE_REM_HIGHLIM 0x0d
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#define DTT_WRITE_REM_LOWLIM 0x0e
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#define DTT_WRITE_ONESHOT 0x0f
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#define DTT_STATUS_BUSY 0x80 /* 1=ADC Converting */
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#define DTT_STATUS_LHIGH 0x40 /* 1=Local High Temp Limit Tripped */
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#define DTT_STATUS_LLOW 0x20 /* 1=Local Low Temp Limit Tripped */
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#define DTT_STATUS_RHIGH 0x10 /* 1=Remote High Temp Limit Tripped */
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#define DTT_STATUS_RLOW 0x08 /* 1=Remote Low Temp Limit Tripped */
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#define DTT_STATUS_OPEN 0x04 /* 1=Remote Sensor Open-Circuit */
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#define DTT_CONFIG_ALERT_MASKED 0x80 /* 0=ALERT Enabled, 1=ALERT Masked */
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#define DTT_CONFIG_STANDBY 0x40 /* 0=Run, 1=Standby */
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#define DTT_ADM1021_DEVID 0x41
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#endif
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#endif /* _DTT_H_ */
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