| wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 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) || defined(CONFIG_DTT_DS1621) |
| 31 | #define CONFIG_DTT /* We have a DTT */ |
| 32 | |
| 33 | #define DTT_COMMERCIAL_MAX_TEMP 70 /* 0 - +70 C */ |
| 34 | #define DTT_INDUSTRIAL_MAX_TEMP 85 /* -40 - +85 C */ |
| 35 | #define DTT_AUTOMOTIVE_MAX_TEMP 105 /* -40 - +105 C */ |
| 36 | #ifndef CFG_DTT_MAX_TEMP |
| 37 | #define CFG_DTT_MAX_TEMP DTT_COMMERCIAL_MAX_TEMP |
| 38 | #endif |
| 39 | #ifndef CFG_DTT_HYSTERESIS |
| 40 | #define CFG_DTT_HYSTERESIS 5 /* 5 C */ |
| 41 | #endif |
| 42 | |
| 43 | extern int dtt_init (void); |
| 44 | extern int dtt_read(int sensor, int reg); |
| 45 | extern int dtt_write(int sensor, int reg, int val); |
| 46 | extern int dtt_get_temp(int sensor); |
| 47 | #endif |
| 48 | |
| 49 | #if defined(CONFIG_DTT_LM75) |
| 50 | #define DTT_READ_TEMP 0x0 |
| 51 | #define DTT_CONFIG 0x1 |
| 52 | #define DTT_TEMP_HYST 0x2 |
| 53 | #define DTT_TEMP_SET 0x3 |
| 54 | #endif |
| 55 | |
| 56 | #if defined(CONFIG_DTT_DS1621) |
| 57 | #define DTT_READ_TEMP 0xAA |
| 58 | #define DTT_READ_COUNTER 0xA8 |
| 59 | #define DTT_READ_SLOPE 0xA9 |
| 60 | #define DTT_WRITE_START_CONV 0xEE |
| 61 | #define DTT_WRITE_STOP_CONV 0x22 |
| 62 | #define DTT_TEMP_HIGH 0xA1 |
| 63 | #define DTT_TEMP_LOW 0xA2 |
| 64 | #define DTT_CONFIG 0xAC |
| 65 | #endif |
| 66 | |
| 67 | #endif /* _DTT_H_ */ |