1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
/*
* (C) Copyright 2001
* Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* Digital Thermometers and Thermostats.
*/
#ifndef _DTT_H_
#define _DTT_H_
#if defined(CONFIG_DTT_LM75) || defined(CONFIG_DTT_DS1621)
#define CONFIG_DTT /* We have a DTT */
#define DTT_COMMERCIAL_MAX_TEMP 70 /* 0 - +70 C */
#define DTT_INDUSTRIAL_MAX_TEMP 85 /* -40 - +85 C */
#define DTT_AUTOMOTIVE_MAX_TEMP 105 /* -40 - +105 C */
#ifndef CFG_DTT_MAX_TEMP
#define CFG_DTT_MAX_TEMP DTT_COMMERCIAL_MAX_TEMP
#endif
#ifndef CFG_DTT_HYSTERESIS
#define CFG_DTT_HYSTERESIS 5 /* 5 C */
#endif
extern int dtt_init (void);
extern int dtt_read(int sensor, int reg);
extern int dtt_write(int sensor, int reg, int val);
extern int dtt_get_temp(int sensor);
#endif
#if defined(CONFIG_DTT_LM75)
#define DTT_READ_TEMP 0x0
#define DTT_CONFIG 0x1
#define DTT_TEMP_HYST 0x2
#define DTT_TEMP_SET 0x3
#endif
#if defined(CONFIG_DTT_DS1621)
#define DTT_READ_TEMP 0xAA
#define DTT_READ_COUNTER 0xA8
#define DTT_READ_SLOPE 0xA9
#define DTT_WRITE_START_CONV 0xEE
#define DTT_WRITE_STOP_CONV 0x22
#define DTT_TEMP_HIGH 0xA1
#define DTT_TEMP_LOW 0xA2
#define DTT_CONFIG 0xAC
#endif
#endif /* _DTT_H_ */
|
