| /* |
| * Copyright (c) 2019 Henrik Brix Andersen <henrik@brixandersen.dk> |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <device.h> |
| #include <drivers/led.h> |
| #include <drivers/gpio.h> |
| #include <zephyr.h> |
| |
| #define LOG_LEVEL CONFIG_LOG_DEFAULT_LEVEL |
| #include <logging/log.h> |
| LOG_MODULE_REGISTER(main); |
| |
| #define LED_DEV_NAME DT_LABEL(DT_INST(0, holtek_ht16k33)) |
| #define KS0_DEV_NAME DT_LABEL(DT_INST(0, holtek_ht16k33_keyscan)) |
| #define KS1_DEV_NAME DT_LABEL(DT_INST(1, holtek_ht16k33_keyscan)) |
| #define KS2_DEV_NAME DT_LABEL(DT_INST(2, holtek_ht16k33_keyscan)) |
| |
| #define KEYSCAN_DEVICES 3 |
| |
| const struct device *led_dev; |
| const struct device *ks_dev[KEYSCAN_DEVICES]; |
| static struct gpio_callback ks_cb[KEYSCAN_DEVICES]; |
| |
| static void keyscan_callback(const struct device *gpiob, |
| struct gpio_callback *cb, uint32_t pins) |
| { |
| LOG_INF("%s: 0x%08x", gpiob->name, pins); |
| } |
| |
| void main(void) |
| { |
| int err; |
| int i; |
| |
| /* LED device binding */ |
| led_dev = device_get_binding(LED_DEV_NAME); |
| if (!led_dev) { |
| LOG_ERR("LED device %s not found", LED_DEV_NAME); |
| return; |
| } |
| |
| /* Keyscan device bindings */ |
| ks_dev[0] = device_get_binding(KS0_DEV_NAME); |
| ks_dev[1] = device_get_binding(KS1_DEV_NAME); |
| ks_dev[2] = device_get_binding(KS2_DEV_NAME); |
| for (i = 0; i < ARRAY_SIZE(ks_dev); i++) { |
| if (!ks_dev[i]) { |
| LOG_ERR("KS%d device not found", i); |
| return; |
| } |
| |
| gpio_init_callback(&ks_cb[i], &keyscan_callback, |
| GENMASK(12, 0)); |
| |
| err = gpio_add_callback(ks_dev[i], &ks_cb[i]); |
| if (err) { |
| LOG_ERR("Failed to add KS%d GPIO callback (err %d)", i, |
| err); |
| return; |
| } |
| } |
| |
| while (1) { |
| LOG_INF("Iterating through all LEDs, turning them on " |
| "one-by-one"); |
| for (i = 0; i < 128; i++) { |
| led_on(led_dev, 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_dev, 0, i / 2, i / 2); |
| k_msleep(10 * i); |
| } |
| led_blink(led_dev, 0, 0, 0); |
| |
| for (i = 100; i >= 0; i -= 10) { |
| LOG_INF("Setting LED brightness to %d%%", i); |
| led_set_brightness(led_dev, 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_dev, i); |
| } |
| led_set_brightness(led_dev, 0, 100); |
| } |
| } |