Your Name
51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
#include "buttons.h"
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#include <zephyr/kernel.h>
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#include <zephyr/device.h>
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#include <zephyr/logging/log.h>
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LOG_MODULE_REGISTER(buttons, CONFIG_LOG_MAX_LEVEL);
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#define DEBOUNCE_TIME_MS 100
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/* Forward declarations for internal callbacks */
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static void debounce_cb(struct k_work *work);
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static void buttons_cb(const struct device *dev, struct gpio_callback *cb, uint32_t pins);
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K_WORK_DELAYABLE_DEFINE(debounce_work_btn, debounce_cb);
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static const struct gpio_dt_spec buttons[NR_BUTTONS] = {
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GPIO_DT_SPEC_GET_OR(DT_ALIAS(int_btn_1), gpios, {0}),
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GPIO_DT_SPEC_GET_OR(DT_ALIAS(int_btn_2), gpios, {0}),
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};
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static struct gpio_callback buttons_cb_data[NR_BUTTONS];
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int buttons_init(void)
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{
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gpio_pin_configure_dt(&buttons[BUTTON1], GPIO_INPUT);
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gpio_pin_interrupt_configure_dt(&buttons[BUTTON1], GPIO_INT_EDGE_TO_ACTIVE);
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gpio_init_callback(&buttons_cb_data[0], buttons_cb, BIT(buttons[BUTTON1].pin));
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gpio_add_callback(buttons[BUTTON1].port, &buttons_cb_data[0]);
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gpio_pin_configure_dt(&buttons[BUTTON2], GPIO_INPUT);
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gpio_pin_interrupt_configure_dt(&buttons[BUTTON2], GPIO_INT_EDGE_TO_ACTIVE);
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gpio_init_callback(&buttons_cb_data[1], buttons_cb, BIT(buttons[BUTTON2].pin));
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gpio_add_callback(buttons[BUTTON2].port, &buttons_cb_data[1]);
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return 0;
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}
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static void debounce_cb(struct k_work *work)
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{
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if (gpio_pin_get_dt(&buttons[BUTTON1]) == GPIO_ACTIVE_HIGH ||
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gpio_pin_get_dt(&buttons[BUTTON2]) == GPIO_ACTIVE_HIGH) {
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LOG_DBG("Button active after debounce");
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}
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}
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static void buttons_cb(const struct device *dev, struct gpio_callback *cb, uint32_t pins)
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{
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if (!k_work_delayable_is_pending(&debounce_work_btn)) {
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k_work_schedule(&debounce_work_btn, K_MSEC(DEBOUNCE_TIME_MS));
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}
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}
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