projects / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| c609719b WD |
1 | /* |
| 2 | * (C) Copyright 2001 | |
| 3 | * Erik Theisen, Wave 7 Optics, [email protected]. | |
| 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 | ||
| 6dd652fa WD |
30 | #if defined(CONFIG_DTT_LM75) || \ |
| 31 | defined(CONFIG_DTT_DS1621) || \ | |
| 32 | defined(CONFIG_DTT_ADM1021) | |
| 33 | ||
| c609719b WD |
34 | #define CONFIG_DTT /* We have a DTT */ |
| 35 | ||
| 6dd652fa | 36 | #ifndef CONFIG_DTT_ADM1021 |
| c609719b WD |
37 | #define DTT_COMMERCIAL_MAX_TEMP 70 /* 0 - +70 C */ |
| 38 | #define DTT_INDUSTRIAL_MAX_TEMP 85 /* -40 - +85 C */ | |
| 39 | #define DTT_AUTOMOTIVE_MAX_TEMP 105 /* -40 - +105 C */ | |
| 40 | #ifndef CFG_DTT_MAX_TEMP | |
| 41 | #define CFG_DTT_MAX_TEMP DTT_COMMERCIAL_MAX_TEMP | |
| 42 | #endif | |
| 43 | #ifndef CFG_DTT_HYSTERESIS | |
| 44 | #define CFG_DTT_HYSTERESIS 5 /* 5 C */ | |
| 45 | #endif | |
| 6dd652fa | 46 | #endif /* CONFIG_DTT_ADM1021 */ |
| c609719b WD |
47 | |
| 48 | extern int dtt_init (void); | |
| 49 | extern int dtt_read(int sensor, int reg); | |
| 50 | extern int dtt_write(int sensor, int reg, int val); | |
| 51 | extern int dtt_get_temp(int sensor); | |
| 52 | #endif | |
| 53 | ||
| 54 | #if defined(CONFIG_DTT_LM75) | |
| 55 | #define DTT_READ_TEMP 0x0 | |
| 56 | #define DTT_CONFIG 0x1 | |
| 57 | #define DTT_TEMP_HYST 0x2 | |
| 58 | #define DTT_TEMP_SET 0x3 | |
| 59 | #endif | |
| 60 | ||
| 61 | #if defined(CONFIG_DTT_DS1621) | |
| 62 | #define DTT_READ_TEMP 0xAA | |
| 63 | #define DTT_READ_COUNTER 0xA8 | |
| 64 | #define DTT_READ_SLOPE 0xA9 | |
| 65 | #define DTT_WRITE_START_CONV 0xEE | |
| 66 | #define DTT_WRITE_STOP_CONV 0x22 | |
| 67 | #define DTT_TEMP_HIGH 0xA1 | |
| 68 | #define DTT_TEMP_LOW 0xA2 | |
| 69 | #define DTT_CONFIG 0xAC | |
| 70 | #endif | |
| 71 | ||
| 6dd652fa WD |
72 | #if defined(CONFIG_DTT_ADM1021) |
| 73 | #define DTT_READ_LOC_VALUE 0x00 | |
| 74 | #define DTT_READ_REM_VALUE 0x01 | |
| 75 | #define DTT_READ_STATUS 0x02 | |
| 76 | #define DTT_READ_CONFIG 0x03 | |
| 77 | #define DTT_READ_CONVRATE 0x04 | |
| 78 | #define DTT_READ_LOC_HIGHLIM 0x05 | |
| 79 | #define DTT_READ_LOC_LOWLIM 0x06 | |
| 80 | #define DTT_READ_REM_HIGHLIM 0x07 | |
| 81 | #define DTT_READ_REM_LOWLIM 0x08 | |
| 82 | #define DTT_READ_DEVID 0xfe | |
| 83 | ||
| 84 | #define DTT_WRITE_CONFIG 0x09 | |
| 85 | #define DTT_WRITE_CONVRATE 0x0a | |
| 86 | #define DTT_WRITE_LOC_HIGHLIM 0x0b | |
| 87 | #define DTT_WRITE_LOC_LOWLIM 0x0c | |
| 88 | #define DTT_WRITE_REM_HIGHLIM 0x0d | |
| 89 | #define DTT_WRITE_REM_LOWLIM 0x0e | |
| 90 | #define DTT_WRITE_ONESHOT 0x0f | |
| 91 | ||
| 92 | #define DTT_STATUS_BUSY 0x80 /* 1=ADC Converting */ | |
| 93 | #define DTT_STATUS_LHIGH 0x40 /* 1=Local High Temp Limit Tripped */ | |
| 94 | #define DTT_STATUS_LLOW 0x20 /* 1=Local Low Temp Limit Tripped */ | |
| 95 | #define DTT_STATUS_RHIGH 0x10 /* 1=Remote High Temp Limit Tripped */ | |
| 96 | #define DTT_STATUS_RLOW 0x08 /* 1=Remote Low Temp Limit Tripped */ | |
| 97 | #define DTT_STATUS_OPEN 0x04 /* 1=Remote Sensor Open-Circuit */ | |
| 98 | ||
| 99 | #define DTT_CONFIG_ALERT_MASKED 0x80 /* 0=ALERT Enabled, 1=ALERT Masked */ | |
| 100 | #define DTT_CONFIG_STANDBY 0x40 /* 0=Run, 1=Standby */ | |
| 101 | ||
| 102 | #define DTT_ADM1021_DEVID 0x41 | |
| 103 | #endif | |
| 104 | ||
| c609719b | 105 | #endif /* _DTT_H_ */ |