06236ba883
Convert the ht16k33 to use the input subsystem. This can still be used with the kscan API with the zephyr,kscan-input driver, or use the input-keymap one to generate input codes instead. Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
76 lines
1.7 KiB
C
76 lines
1.7 KiB
C
/*
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* Copyright (c) 2019 Henrik Brix Andersen <henrik@brixandersen.dk>
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/drivers/led.h>
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#include <zephyr/drivers/kscan.h>
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#include <zephyr/devicetree.h>
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#include <zephyr/kernel.h>
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#include <zephyr/logging/log.h>
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LOG_MODULE_REGISTER(main, CONFIG_LOG_DEFAULT_LEVEL);
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#define LED_NODE DT_COMPAT_GET_ANY_STATUS_OKAY(holtek_ht16k33)
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#define KEY_NODE DT_CHILD(LED_NODE, kscan_input)
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static void keyscan_callback(const struct device *dev, uint32_t row,
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uint32_t column, bool pressed)
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{
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LOG_INF("Row %d, column %d %s", row, column,
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pressed ? "pressed" : "released");
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}
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int main(void)
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{
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const struct device *const led = DEVICE_DT_GET(LED_NODE);
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const struct device *const key = DEVICE_DT_GET(KEY_NODE);
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int err;
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int i;
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if (!device_is_ready(led)) {
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LOG_ERR("LED device not ready");
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return 0;
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}
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if (!device_is_ready(key)) {
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LOG_ERR("Keyscan device not ready");
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return 0;
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}
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err = kscan_config(key, keyscan_callback);
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if (err) {
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LOG_ERR("Failed to add keyscan callback (err %d)", err);
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}
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while (1) {
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LOG_INF("Iterating through all LEDs, turning them on "
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"one-by-one");
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for (i = 0; i < 128; i++) {
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led_on(led, i);
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k_sleep(K_MSEC(100));
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}
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for (i = 500; i <= 2000; i *= 2) {
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LOG_INF("Blinking LEDs with a period of %d ms", i);
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led_blink(led, 0, i / 2, i / 2);
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k_msleep(10 * i);
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}
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led_blink(led, 0, 0, 0);
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for (i = 100; i >= 0; i -= 10) {
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LOG_INF("Setting LED brightness to %d%%", i);
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led_set_brightness(led, 0, i);
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k_sleep(K_MSEC(1000));
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}
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LOG_INF("Turning all LEDs off and restoring 100%% brightness");
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for (i = 0; i < 128; i++) {
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led_off(led, i);
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}
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led_set_brightness(led, 0, 100);
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}
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return 0;
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}
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