108 lines
3.0 KiB
C
108 lines
3.0 KiB
C
#include "button.h"
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#include "driver/gpio.h"
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#include "esp_log.h"
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#include "esp_timer.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "freertos/queue.h"
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static const char *TAG = "BTN";
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// 去抖间隔（微秒）
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#define DEBOUNCE_US 200000
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// 按键事件队列
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static QueueHandle_t btn_evt_queue = NULL;
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// 回调存储
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typedef struct {
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btn_event_cb_t cb;
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void *usr_data;
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} btn_cb_t;
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static btn_cb_t boot_cb = {0};
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static btn_cb_t key2_cb = {0};
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// 去抖时间戳
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static int64_t last_boot_us = 0;
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static int64_t last_key2_us = 0;
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// GPIO中断服务函数（ISR中不做耗时操作，仅发送事件到队列）
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static void IRAM_ATTR gpio_isr_handler(void *arg)
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{
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int gpio_num = (int)arg;
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xQueueSendFromISR(btn_evt_queue, &gpio_num, NULL);
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}
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// 按键事件处理任务
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static void btn_task(void *pvParameters)
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{
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int gpio_num;
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while (1) {
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if (xQueueReceive(btn_evt_queue, &gpio_num, portMAX_DELAY)) {
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int64_t now = esp_timer_get_time();
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if (gpio_num == PIN_BTN_BOOT) {
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if (now - last_boot_us > DEBOUNCE_US) {
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last_boot_us = now;
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ESP_LOGI(TAG, "BOOT按键按下 (GPIO%d)", gpio_num);
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if (boot_cb.cb) {
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boot_cb.cb(gpio_num, boot_cb.usr_data);
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}
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}
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} else if (gpio_num == PIN_BTN_KEY2) {
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if (now - last_key2_us > DEBOUNCE_US) {
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last_key2_us = now;
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ESP_LOGI(TAG, "KEY2按键按下 (GPIO%d)", gpio_num);
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if (key2_cb.cb) {
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key2_cb.cb(gpio_num, key2_cb.usr_data);
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}
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}
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}
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}
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}
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}
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esp_err_t button_init(void)
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{
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btn_evt_queue = xQueueCreate(10, sizeof(int));
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// 配置GPIO为输入模式，内部上拉，下降沿触发中断
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gpio_config_t io_conf = {
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.pin_bit_mask = (1ULL << PIN_BTN_BOOT) | (1ULL << PIN_BTN_KEY2),
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.mode = GPIO_MODE_INPUT,
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.pull_up_en = GPIO_PULLUP_ENABLE,
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.pull_down_en = GPIO_PULLDOWN_DISABLE,
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.intr_type = GPIO_INTR_NEGEDGE,
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};
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gpio_config(&io_conf);
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// 安装GPIO中断服务（如果已安装则跳过）
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esp_err_t ret = gpio_install_isr_service(0);
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if (ret != ESP_OK && ret != ESP_ERR_INVALID_STATE) {
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ESP_LOGE(TAG, "GPIO ISR服务安装失败");
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return ret;
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}
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gpio_isr_handler_add(PIN_BTN_BOOT, gpio_isr_handler, (void *)PIN_BTN_BOOT);
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gpio_isr_handler_add(PIN_BTN_KEY2, gpio_isr_handler, (void *)PIN_BTN_KEY2);
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// 按键处理任务
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xTaskCreate(btn_task, "btn_task", 3072, NULL, 5, NULL);
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ESP_LOGI(TAG, "按键初始化完成 (BOOT=GPIO%d, KEY2=GPIO%d)", PIN_BTN_BOOT, PIN_BTN_KEY2);
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return ESP_OK;
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}
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void button_on_boot_press(btn_event_cb_t cb, void *usr_data)
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{
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boot_cb.cb = cb;
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boot_cb.usr_data = usr_data;
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}
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void button_on_key2_press(btn_event_cb_t cb, void *usr_data)
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{
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key2_cb.cb = cb;
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key2_cb.usr_data = usr_data;
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}
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