1 /*
2 * Copyright (c) 2023 Cirrus Logic, Inc.
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include "zephyr/sys/printk.h"
8 #include <zephyr/kernel.h>
9 #include <zephyr/device.h>
10 #include <zephyr/devicetree.h>
11 #include <zephyr/drivers/charger.h>
12 #include <sys/errno.h>
13
14 static const struct device *chgdev = DEVICE_DT_GET(DT_NODELABEL(charger));
15
main(void)16 int main(void)
17 {
18 union charger_propval val;
19 int ret;
20
21 if (chgdev == NULL) {
22 printk("Error: no charger device found.\n");
23 return 0;
24 }
25
26 if (!device_is_ready(chgdev)) {
27 printk("Error: Device \"%s\" is not ready; "
28 "check the driver initialization logs for errors.\n",
29 chgdev->name);
30 return 0;
31 }
32
33 printk("Found device \"%s\", getting charger data\n", chgdev->name);
34
35 #ifdef CONFIG_CHARGER_DISCHARGE_CURRENT_NOTIFICATIONS
36 val.discharge_current_notification.current_ua =
37 CONFIG_APP_DISCHARGE_CURRENT_NOTIFICATION_THRESHOLD_UA;
38 val.discharge_current_notification.severity = CHARGER_SEVERITY_WARNING;
39 val.discharge_current_notification.duration_us =
40 CONFIG_APP_DISCHARGE_CURRENT_NOTIFICATION_DURATION_US;
41
42 ret = charger_set_prop(chgdev, CHARGER_PROP_DISCHARGE_CURRENT_NOTIFICATION, &val);
43 if (ret < 0) {
44 return ret;
45 }
46 #endif
47
48 #ifdef CONFIG_CHARGER_SYSTEM_VOLTAGE_NOTIFICATIONS
49 val.system_voltage_notification =
50 CONFIG_APP_SYSTEM_VOLTAGE_NOTIFICATION_THRESHOLD_UV;
51
52 ret = charger_set_prop(chgdev, CHARGER_PROP_SYSTEM_VOLTAGE_NOTIFICATION_UV, &val);
53 if (ret < 0) {
54 return ret;
55 }
56 #endif
57
58 while (1) {
59 /* Poll until external power is presented to the charger */
60 do {
61 ret = charger_get_prop(chgdev, CHARGER_PROP_ONLINE, &val);
62 if (ret < 0) {
63 return ret;
64 }
65
66 k_msleep(100);
67 } while (val.online == CHARGER_ONLINE_OFFLINE);
68
69 val.status = CHARGER_STATUS_CHARGING;
70
71 ret = charger_charge_enable(chgdev, true);
72 if (ret == -ENOTSUP) {
73 printk("Enabling charge not supported, assuming auto charge enable\n");
74 continue;
75 } else if (ret < 0) {
76 return ret;
77 }
78
79 k_msleep(500);
80
81 ret = charger_get_prop(chgdev, CHARGER_PROP_STATUS, &val);
82 if (ret < 0) {
83 return ret;
84 }
85
86 switch (val.status) {
87 case CHARGER_STATUS_CHARGING:
88 printk("Charging in progress...\n");
89
90 ret = charger_get_prop(chgdev, CHARGER_PROP_CHARGE_TYPE, &val);
91 if (ret < 0) {
92 return ret;
93 }
94
95 printk("Device \"%s\" charge type is %d\n", chgdev->name, val.charge_type);
96 break;
97 case CHARGER_STATUS_NOT_CHARGING:
98 printk("Charging halted...\n");
99
100 ret = charger_get_prop(chgdev, CHARGER_PROP_HEALTH, &val);
101 if (ret < 0) {
102 return ret;
103 }
104
105 printk("Device \"%s\" health is %d\n", chgdev->name, val.health);
106 break;
107 case CHARGER_STATUS_FULL:
108 printk("Charging complete!");
109 return 0;
110 case CHARGER_STATUS_DISCHARGING:
111 printk("External power removed, discharging\n");
112
113 ret = charger_get_prop(chgdev, CHARGER_PROP_ONLINE, &val);
114 if (ret < 0) {
115 return ret;
116 }
117 break;
118 default:
119 return -EIO;
120 }
121
122 k_msleep(500);
123 }
124 }
125
