1 /*
2 * Copyright (c) 2018 Savoir-Faire Linux.
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <zephyr/device.h>
8 #include <errno.h>
9 #include <zephyr/drivers/led.h>
10 #include <zephyr/sys/util.h>
11 #include <zephyr/kernel.h>
12
13 #define LOG_LEVEL CONFIG_LOG_DEFAULT_LEVEL
14 #include <zephyr/logging/log.h>
15 LOG_MODULE_REGISTER(main);
16
17 #define NUM_LEDS 4
18 #define MAX_BRIGHTNESS 100
19 #define HALF_BRIGHTNESS (MAX_BRIGHTNESS / 2)
20 #define BLINK_DELAY_ON 500
21 #define BLINK_DELAY_OFF 500
22 #define DELAY_TIME_MS 1000
23 #define DELAY_TIME K_MSEC(DELAY_TIME_MS)
24
main(void)25 int main(void)
26 {
27 const struct device *const led_dev = DEVICE_DT_GET_ANY(nxp_pca9633);
28 int i, ret;
29
30 if (!led_dev) {
31 LOG_ERR("No devices with compatible nxp,pca9633 found");
32 return 0;
33 } else if (!device_is_ready(led_dev)) {
34 LOG_ERR("LED device %s is not ready", led_dev->name);
35 return 0;
36 } else {
37 LOG_INF("Found LED device %s", led_dev->name);
38 }
39
40 LOG_INF("Testing leds");
41
42 while (1) {
43 /* Turn on LEDs one by one */
44 for (i = 0; i < NUM_LEDS; i++) {
45 ret = led_on(led_dev, i);
46 if (ret < 0) {
47 return 0;
48 }
49
50 k_sleep(DELAY_TIME);
51 }
52
53 /* Turn off LEDs one by one */
54 for (i = 0; i < NUM_LEDS; i++) {
55 ret = led_off(led_dev, i);
56 if (ret < 0) {
57 return 0;
58 }
59
60 k_sleep(DELAY_TIME);
61 }
62
63 /* Set the brightness to half max of LEDs one by one */
64 for (i = 0; i < NUM_LEDS; i++) {
65 ret = led_set_brightness(led_dev, i, HALF_BRIGHTNESS);
66 if (ret < 0) {
67 return 0;
68 }
69
70 k_sleep(DELAY_TIME);
71 }
72
73 /* Turn off LEDs one by one */
74 for (i = 0; i < NUM_LEDS; i++) {
75 ret = led_off(led_dev, i);
76 if (ret < 0) {
77 return 0;
78 }
79
80 k_sleep(DELAY_TIME);
81 }
82
83 /* Test the blinking of LEDs one by one */
84 for (i = 0; i < NUM_LEDS; i++) {
85 ret = led_blink(led_dev, i, BLINK_DELAY_ON,
86 BLINK_DELAY_OFF);
87 if (ret < 0) {
88 return 0;
89 }
90
91 k_sleep(DELAY_TIME);
92 }
93
94 /* Wait a few blinking before turning off the LEDs */
95 k_msleep(DELAY_TIME_MS * 10);
96
97 /* Turn off LEDs one by one */
98 for (i = 0; i < NUM_LEDS; i++) {
99 ret = led_off(led_dev, i);
100 if (ret < 0) {
101 return 0;
102 }
103
104 k_sleep(DELAY_TIME);
105 }
106
107 }
108 return 0;
109 }
110
