1/* 2 * (C) Copyright 2001 3 * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com. 4 * 5 * See file CREDITS for list of people who contributed to this 6 * project. 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License as 10 * published by the Free Software Foundation; either version 2 of 11 * the License, or (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21 * MA 02111-1307 USA 22 */ 23 24/* 25 * Digital Thermometers and Thermostats. 26 */ 27#ifndef _DTT_H_ 28#define _DTT_H_ 29 30#if defined(CONFIG_DTT_LM75) || \ 31 defined(CONFIG_DTT_DS1621) || \ 32 defined(CONFIG_DTT_DS1775) || \ 33 defined(CONFIG_DTT_LM81) || \ 34 defined(CONFIG_DTT_ADM1021) || \ 35 defined(CONFIG_DTT_LM73) 36 37#define CONFIG_DTT /* We have a DTT */ 38 39#ifndef CONFIG_DTT_ADM1021 40#define DTT_COMMERCIAL_MAX_TEMP 70 /* 0 - +70 C */ 41#define DTT_INDUSTRIAL_MAX_TEMP 85 /* -40 - +85 C */ 42#define DTT_AUTOMOTIVE_MAX_TEMP 105 /* -40 - +105 C */ 43#ifndef CFG_DTT_MAX_TEMP 44#define CFG_DTT_MAX_TEMP DTT_COMMERCIAL_MAX_TEMP 45#endif 46#ifndef CFG_DTT_HYSTERESIS 47#define CFG_DTT_HYSTERESIS 5 /* 5 C */ 48#endif 49#endif /* CONFIG_DTT_ADM1021 */ 50 51extern int dtt_init (void); 52extern int dtt_read(int sensor, int reg); 53extern int dtt_write(int sensor, int reg, int val); 54extern int dtt_get_temp(int sensor); 55#endif 56 57#if defined(CONFIG_DTT_LM75) 58#define DTT_READ_TEMP 0x0 59#define DTT_CONFIG 0x1 60#define DTT_TEMP_HYST 0x2 61#define DTT_TEMP_SET 0x3 62#endif 63 64#if defined(CONFIG_DTT_LM81) 65#define DTT_READ_TEMP 0x27 66#define DTT_CONFIG_TEMP 0x4b 67#define DTT_TEMP_MAX 0x39 68#define DTT_TEMP_HYST 0x3a 69#define DTT_CONFIG 0x40 70#endif 71 72#if defined(CONFIG_DTT_DS1621) 73#define DTT_READ_TEMP 0xAA 74#define DTT_READ_COUNTER 0xA8 75#define DTT_READ_SLOPE 0xA9 76#define DTT_WRITE_START_CONV 0xEE 77#define DTT_WRITE_STOP_CONV 0x22 78#define DTT_TEMP_HIGH 0xA1 79#define DTT_TEMP_LOW 0xA2 80#define DTT_CONFIG 0xAC 81#endif 82 83#if defined(CONFIG_DTT_DS1775) 84#define DTT_READ_TEMP 0x0 85#define DTT_CONFIG 0x1 86#define DTT_TEMP_HYST 0x2 87#define DTT_TEMP_OS 0x3 88#endif 89 90#if defined(CONFIG_DTT_ADM1021) 91#define DTT_READ_LOC_VALUE 0x00 92#define DTT_READ_REM_VALUE 0x01 93#define DTT_READ_STATUS 0x02 94#define DTT_READ_CONFIG 0x03 95#define DTT_READ_CONVRATE 0x04 96#define DTT_READ_LOC_HIGHLIM 0x05 97#define DTT_READ_LOC_LOWLIM 0x06 98#define DTT_READ_REM_HIGHLIM 0x07 99#define DTT_READ_REM_LOWLIM 0x08 100#define DTT_READ_DEVID 0xfe 101 102#define DTT_WRITE_CONFIG 0x09 103#define DTT_WRITE_CONVRATE 0x0a 104#define DTT_WRITE_LOC_HIGHLIM 0x0b 105#define DTT_WRITE_LOC_LOWLIM 0x0c 106#define DTT_WRITE_REM_HIGHLIM 0x0d 107#define DTT_WRITE_REM_LOWLIM 0x0e 108#define DTT_WRITE_ONESHOT 0x0f 109 110#define DTT_STATUS_BUSY 0x80 /* 1=ADC Converting */ 111#define DTT_STATUS_LHIGH 0x40 /* 1=Local High Temp Limit Tripped */ 112#define DTT_STATUS_LLOW 0x20 /* 1=Local Low Temp Limit Tripped */ 113#define DTT_STATUS_RHIGH 0x10 /* 1=Remote High Temp Limit Tripped */ 114#define DTT_STATUS_RLOW 0x08 /* 1=Remote Low Temp Limit Tripped */ 115#define DTT_STATUS_OPEN 0x04 /* 1=Remote Sensor Open-Circuit */ 116 117#define DTT_CONFIG_ALERT_MASKED 0x80 /* 0=ALERT Enabled, 1=ALERT Masked */ 118#define DTT_CONFIG_STANDBY 0x40 /* 0=Run, 1=Standby */ 119 120#define DTT_ADM1021_DEVID 0x41 121#endif 122 123#if defined(CONFIG_DTT_LM73) 124#define DTT_READ_TEMP 0x0 125#define DTT_CONFIG 0x1 126#define DTT_TEMP_HIGH 0x2 127#define DTT_TEMP_LOW 0x3 128#define DTT_CONTROL 0x4 129#define DTT_ID 0x7 130#endif 131 132#endif /* _DTT_H_ */ 133