1 /*
2 * Copyright (c) 2017 PHYTEC Messtechnik GmbH
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <zephyr/kernel.h>
8 #include <zephyr/device.h>
9 #include <zephyr/drivers/sensor.h>
10 #include <zephyr/sys/printk.h>
11
12 static struct sensor_value temp_value[64];
13
14 #ifdef CONFIG_AMG88XX_TRIGGER
15 K_SEM_DEFINE(sem, 0, 1);
16
trigger_handler(const struct device * dev,const struct sensor_trigger * trigger)17 static void trigger_handler(const struct device *dev,
18 const struct sensor_trigger *trigger)
19 {
20 ARG_UNUSED(dev);
21 ARG_UNUSED(trigger);
22
23 k_sem_give(&sem);
24 }
25 #endif
26
27
print_buffer(void * ptr,size_t l)28 void print_buffer(void *ptr, size_t l)
29 {
30 struct sensor_value *tv = ptr;
31 int ln = 0;
32
33 printk("---|");
34 for (int i = 0; i < 8; i++) {
35 printk(" %02d ", i);
36 }
37 printk("\n");
38
39 printk("%03d|", ln);
40 for (int i = 0; i < l; i++) {
41 printk("%05d ", (tv[i].val1 * 100 + tv[i].val2 / 10000));
42 if (!((i + 1) % 8)) {
43 printk("\n");
44 ln++;
45 printk("%03d|", ln);
46 }
47 }
48 printk("\n");
49 }
50
main(void)51 int main(void)
52 {
53 int ret;
54 const struct device *const dev = DEVICE_DT_GET_ONE(panasonic_amg88xx);
55
56 if (!device_is_ready(dev)) {
57 printk("sensor: device not ready.\n");
58 return 0;
59 }
60
61 printk("device: %p, name: %s\n", dev, dev->name);
62
63 #ifdef CONFIG_AMG88XX_TRIGGER
64 struct sensor_value attr = {
65 .val1 = 27,
66 .val2 = 0,
67 };
68
69 if (sensor_attr_set(dev, SENSOR_CHAN_AMBIENT_TEMP,
70 SENSOR_ATTR_UPPER_THRESH, &attr)) {
71 printk("Could not set threshold\n");
72 return 0;
73 }
74
75 struct sensor_trigger trig = {
76 .type = SENSOR_TRIG_THRESHOLD,
77 .chan = SENSOR_CHAN_AMBIENT_TEMP,
78 };
79
80 if (sensor_trigger_set(dev, &trig, trigger_handler)) {
81 printk("Could not set trigger\n");
82 return 0;
83 }
84 #endif
85
86 while (42) {
87 #ifdef CONFIG_AMG88XX_TRIGGER
88 printk("Waiting for a threshold event\n");
89 k_sem_take(&sem, K_FOREVER);
90 #endif
91
92 ret = sensor_sample_fetch(dev);
93 if (ret) {
94 printk("Failed to fetch a sample, %d\n", ret);
95 return 0;
96 }
97
98 ret = sensor_channel_get(dev, SENSOR_CHAN_AMBIENT_TEMP,
99 (struct sensor_value *)temp_value);
100 if (ret) {
101 printk("Failed to get sensor values, %d\n", ret);
102 return 0;
103 }
104
105 printk("new sample:\n");
106 print_buffer(temp_value, ARRAY_SIZE(temp_value));
107
108 k_sleep(K_MSEC(1000));
109 }
110 }
111
