1 /*
2 * Copyright (c) 2023 Alvaro Garcia Gomez <maxpowel@gmail.com>
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include "zephyr/sys/util.h"
8 #include <zephyr/kernel.h>
9 #include <zephyr/device.h>
10 #include <zephyr/devicetree.h>
11 #include <zephyr/drivers/fuel_gauge.h>
12
13
14
main(void)15 int main(void)
16 {
17 const struct device *const dev = DEVICE_DT_GET_ANY(maxim_max17048);
18 int ret = 0;
19
20 if (dev == NULL) {
21 printk("\nError: no device found.\n");
22 return 0;
23 }
24
25 if (!device_is_ready(dev)) {
26 printk("\nError: Device \"%s\" is not ready; "
27 "check the driver initialization logs for errors.\n",
28 dev->name);
29 return 0;
30 }
31
32
33
34 printk("Found device \"%s\", getting fuel gauge data\n", dev->name);
35
36 if (dev == NULL) {
37 return 0;
38 }
39
40 while (1) {
41
42 fuel_gauge_prop_t props[] = {
43 FUEL_GAUGE_RUNTIME_TO_EMPTY,
44 FUEL_GAUGE_RUNTIME_TO_FULL,
45 FUEL_GAUGE_RELATIVE_STATE_OF_CHARGE,
46 FUEL_GAUGE_VOLTAGE,
47 };
48
49 union fuel_gauge_prop_val vals[ARRAY_SIZE(props)];
50
51 ret = fuel_gauge_get_props(dev, props, vals, ARRAY_SIZE(props));
52 if (ret < 0) {
53 printk("Error: cannot get properties\n");
54 } else {
55 printk("Time to empty %d minutes\n", vals[0].runtime_to_empty);
56
57 printk("Time to full %d minutes\n", vals[1].runtime_to_full);
58
59 printk("Charge %d%%\n", vals[2].relative_state_of_charge);
60
61 printk("Voltage %d\n uV", vals[3].voltage);
62 }
63
64 k_sleep(K_MSEC(5000));
65 }
66 return 0;
67 }
68
