sc_at30tse75x.c
5 KB
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
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
/*
* Copyright (C) 2015 Daniel Krebs
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup sys_shell_commands
* @{
*
* @file
* @brief Provides shell commands to test AT30TSE75x temperature sensor
*
* @author Daniel Krebs <github@daniel-krebs.net>
*
* @}
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdbool.h>
#include "at30tse75x.h"
#ifdef MODULE_AT30TSE75X
static bool initialized = false;
static at30tse75x_t dev;
int _at30tse75x_handler(int argc, char **argv)
{
if(argc <= 1) {
printf("Usage: %s init|read|mode|resolution|save|restore|config\n", argv[0]);
return -1;
}
if(strcmp(argv[1], "init") == 0) {
if(argc == 2) {
printf("Usage: %s init #I2C [addr]\n"
" e.g. %s init 0\n", argv[0], argv[0]);
return -1;
}
int error;
unsigned addr = 0x48; /* default to A0-A2 connected to GND */
/* Try to parse i2c dev */
i2c_t i2c_dev = (i2c_t) strtol(argv[2], &argv[1] + 1, 10);
/* Address given */
if(argc == 4) {
char* hex = strstr(argv[3], "0x");
if(hex) {
addr = strtoul(hex+2, NULL, 16);
}
}
error = at30tse75x_init(&dev, i2c_dev, I2C_SPEED_NORMAL, addr);
if (error) {
printf("Error initializing AT30TSE75x sensor on I2C #%u @ 0x%x\n", i2c_dev, addr);
initialized = false;
return 1;
}
else {
printf("Initialized AT30TSE75x sensor on I2C #%u @ 0x%x\n", i2c_dev, addr);
initialized = true;
}
} else {
if(!initialized) {
puts("Please initialize first");
return -1;
}
if(strcmp(argv[1], "read") == 0) {
float temperature;
if(at30tse75x_get_temperature(&dev, &temperature) != 0) {
puts("Reading temperature failed");
return -1;
}
printf("Temperature: %i.%03u °C\n",
(int)temperature,
(unsigned)((temperature - (int)temperature) * 1000));
} else if(strcmp(argv[1], "mode") == 0) {
if(argc == 2) {
printf("Usage: %s mode one-shot|comparator|interrupt\n", argv[0]);
return -1;
}
at30tse75x_mode_t mode;
if(strcmp(argv[2], "one-shot") == 0) {
mode = AT30TSE75X_MODE_ONE_SHOT;
} else if(strcmp(argv[2], "comparator") == 0) {
mode = AT30TSE75X_MODE_COMPARATOR;
} else if(strcmp(argv[2], "interrupt") == 0) {
mode = AT30TSE75X_MODE_INTERRUPT;
} else {
puts("Invalid mode");
return -1;
}
if(at30tse75x_set_mode(&dev, mode) != 0) {
return -1;
}
printf("Mode set to %s\n", argv[2]);
} else if(strcmp(argv[1], "resolution") == 0) {
if(argc == 2) {
printf("Usage: %s resolution 9|10|11|12\n", argv[0]);
return -1;
}
unsigned resolution = strtoul(argv[2], NULL, 10);
if(at30tse75x_set_resolution(&dev, resolution - 9) != 0) {
return -1;
}
printf("Resolution set to %u bits\n", resolution);
} else if(strcmp(argv[1], "save") == 0) {
uint8_t config;
if(at30tse75x_get_config(&dev, &config) != 0) {
return -1;
}
if(at30tse75x_save_config(&dev) != 0) {
return -1;
}
printf("Config (0x%x) saved\n", config);
} else if(strcmp(argv[1], "restore") == 0) {
uint8_t config;
if(at30tse75x_restore_config(&dev) != 0) {
return -1;
}
if(at30tse75x_get_config(&dev, &config) != 0) {
return -1;
}
printf("Config restored to 0x%x\n", config);
} else if(strcmp(argv[1], "config") == 0) {
if(argc == 2) {
uint8_t config;
if(at30tse75x_get_config(&dev, &config) != 0) {
return -1;
}
printf("Config: 0x%x\n", config);
} else {
/* Try to parse config in hex format */
uint8_t config;
char* hex = strstr(argv[2], "0x");
if(!hex) {
printf("Usage: %s config 0x__"
" to set config\n", argv[0]);
return -1;
}
config = strtoul(hex+2, NULL, 16);
if(at30tse75x_set_config(&dev, config) != 0) {
return -1;
}
printf("Config set to: 0x%x\n", config);
}
}
}
return 0;
}
#endif /* MODULE_AT30TSE75X */