1 /*
2 * Copyright (c) 2025 Andreas Klinger
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <zephyr/kernel.h>
8
9 #include <zephyr/sys/printk.h>
10 #include <stdio.h>
11
12 #include <zephyr/device.h>
13 #include <zephyr/drivers/sensor.h>
14
15 #include <zephyr/drivers/sensor/veml6046.h>
16
read_with_attr(const struct device * dev,int it,int pdd,int gain)17 static void read_with_attr(const struct device *dev, int it, int pdd, int gain)
18 {
19 int ret;
20 struct sensor_value red, green, blue, ir;
21 struct sensor_value red_raw, green_raw, blue_raw, ir_raw;
22 struct sensor_value sen;
23 char result[10];
24
25 sen.val2 = 0;
26
27 sen.val1 = it;
28 ret = sensor_attr_set(dev, SENSOR_CHAN_LIGHT,
29 (enum sensor_attribute)SENSOR_ATTR_VEML6046_IT, &sen);
30 if (ret) {
31 printf("Failed to set it attribute ret: %d\n", ret);
32 }
33 sen.val1 = pdd;
34 ret = sensor_attr_set(dev, SENSOR_CHAN_LIGHT,
35 (enum sensor_attribute)SENSOR_ATTR_VEML6046_PDD, &sen);
36 if (ret) {
37 printf("Failed to set pdd attribute ret: %d\n", ret);
38 }
39 sen.val1 = gain;
40 ret = sensor_attr_set(dev, SENSOR_CHAN_LIGHT,
41 (enum sensor_attribute)SENSOR_ATTR_VEML6046_GAIN, &sen);
42 if (ret) {
43 printf("Failed to set gain attribute ret: %d\n", ret);
44 }
45
46 ret = sensor_sample_fetch(dev);
47 if ((ret < 0) && (ret != -E2BIG)) {
48 printf("sample update error. ret: %d\n", ret);
49 }
50
51 sensor_channel_get(dev, SENSOR_CHAN_RED, &red);
52 sensor_channel_get(dev, (enum sensor_channel)SENSOR_CHAN_VEML6046_RED_RAW_COUNTS,
53 &red_raw);
54
55 sensor_channel_get(dev, SENSOR_CHAN_GREEN, &green);
56 sensor_channel_get(dev, (enum sensor_channel)SENSOR_CHAN_VEML6046_GREEN_RAW_COUNTS,
57 &green_raw);
58
59 sensor_channel_get(dev, SENSOR_CHAN_BLUE, &blue);
60 sensor_channel_get(dev, (enum sensor_channel)SENSOR_CHAN_VEML6046_BLUE_RAW_COUNTS,
61 &blue_raw);
62
63 sensor_channel_get(dev, SENSOR_CHAN_IR, &ir);
64 sensor_channel_get(dev, (enum sensor_channel)SENSOR_CHAN_VEML6046_IR_RAW_COUNTS,
65 &ir_raw);
66
67 if (ret == -E2BIG) {
68 snprintf(result, sizeof(result), "OVERFLOW");
69 } else if (ret) {
70 snprintf(result, sizeof(result), "ERROR");
71 } else {
72 snprintf(result, sizeof(result), "");
73 }
74
75 printf("Red: %6d lx (%6d) green: %6d lx (%6d) "
76 "blue: %6d lx (%6d) IR: %6d lx (%6d) "
77 " it: %d pdd: %d gain: %d -- %s\n",
78 red.val1, red_raw.val1,
79 green.val1, green_raw.val1,
80 blue.val1, blue_raw.val1,
81 ir.val1, ir_raw.val1,
82 it, pdd, gain,
83 result);
84 }
85
read_with_all_attr(const struct device * dev)86 static void read_with_all_attr(const struct device *dev)
87 {
88 for (int it = VEML60XX_IT_3_125; it <= VEML60XX_IT_400; it++) {
89 for (int pdd = VEML6046_SIZE_2_2; pdd <= VEML6046_SIZE_1_2; pdd++) {
90 for (int gain = VEML60XX_GAIN_1; gain <= VEML60XX_GAIN_0_5; gain++) {
91 read_with_attr(dev, it, pdd, gain);
92 }
93 }
94 }
95 }
96
main(void)97 int main(void)
98 {
99 const struct device *const veml = DEVICE_DT_GET(DT_NODELABEL(rgbir));
100
101 if (!device_is_ready(veml)) {
102 printk("sensor: device not ready.\n");
103 return 0;
104 }
105
106 printf("Test all attributes for a good guess of attribute usage away of saturation.\n");
107 read_with_all_attr(veml);
108 printf("Test finished.\n");
109
110 return 0;
111 }
112
