| /* |
| * Copyright (c) 2019 Henrik Brix Andersen <henrik@brixandersen.dk> |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <zephyr/drivers/led.h> |
| #include <zephyr/drivers/kscan.h> |
| #include <zephyr/devicetree.h> |
| #include <zephyr/kernel.h> |
| #include <zephyr/logging/log.h> |
| |
| LOG_MODULE_REGISTER(main, CONFIG_LOG_DEFAULT_LEVEL); |
| |
| #define LED_NODE DT_COMPAT_GET_ANY_STATUS_OKAY(holtek_ht16k33) |
| #define KEY_NODE DT_CHILD(LED_NODE, keyscan) |
| |
| static void keyscan_callback(const struct device *dev, uint32_t row, |
| uint32_t column, bool pressed) |
| { |
| LOG_INF("Row %d, column %d %s", row, column, |
| pressed ? "pressed" : "released"); |
| } |
| |
| void main(void) |
| { |
| const struct device *const led = DEVICE_DT_GET(LED_NODE); |
| const struct device *const key = DEVICE_DT_GET(KEY_NODE); |
| int err; |
| int i; |
| |
| if (!device_is_ready(led)) { |
| LOG_ERR("LED device not ready"); |
| return; |
| } |
| |
| if (!device_is_ready(key)) { |
| LOG_ERR("Keyscan device not ready"); |
| return; |
| } |
| |
| err = kscan_config(key, keyscan_callback); |
| if (err) { |
| LOG_ERR("Failed to add keyscan callback (err %d)", err); |
| } |
| |
| while (1) { |
| LOG_INF("Iterating through all LEDs, turning them on " |
| "one-by-one"); |
| for (i = 0; i < 128; i++) { |
| led_on(led, i); |
| k_sleep(K_MSEC(100)); |
| } |
| |
| for (i = 500; i <= 2000; i *= 2) { |
| LOG_INF("Blinking LEDs with a period of %d ms", i); |
| led_blink(led, 0, i / 2, i / 2); |
| k_msleep(10 * i); |
| } |
| led_blink(led, 0, 0, 0); |
| |
| for (i = 100; i >= 0; i -= 10) { |
| LOG_INF("Setting LED brightness to %d%%", i); |
| led_set_brightness(led, 0, i); |
| k_sleep(K_MSEC(1000)); |
| } |
| |
| LOG_INF("Turning all LEDs off and restoring 100%% brightness"); |
| for (i = 0; i < 128; i++) { |
| led_off(led, i); |
| } |
| led_set_brightness(led, 0, 100); |
| } |
| } |