86 lines
2.6 KiB
C
86 lines
2.6 KiB
C
#include "button_handling.h"
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#include "sdkconfig.h"
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#include <stdio.h>
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#include <string.h>
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#include "driver/gpio.h"
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#include "driver/i2c.h"
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#include "esp_err.h"
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#include "esp_log.h"
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#include "esp_timer.h"
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#include "esp_mac.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/queue.h"
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#include "freertos/task.h"
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#include "common.h"
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static const char* TAG = "button_handling";
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#define DEBOUNCE_TIME_MS (500)
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#define BUTTON_QUEUE_LENGTH 5
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#define BUTTON_QUEUE_ITEM_SIZE sizeof(uint8_t)
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#define WLED_GPIO GPIO_NUM_47
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#define WLED_RMT_CHANNEL RMT_CHANNEL_0
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#define WLED_RESOLUTION_HZ (10000000)
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#define WLED_ON_DURATION_MS (100)
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#define NUM_LEDS (1)
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const uint8_t pins[] =
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{BUTTON_DOWN, BUTTON_UP, BUTTON_LEFT, BUTTON_RIGHT, BUTTON_SELECT, BUTTON_BACK};
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QueueHandle_t buttonQueue = NULL;
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volatile int64_t last_interrupt_time = 0;
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void IRAM_ATTR button_isr_handler(void* arg) {
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int64_t now = esp_timer_get_time();
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if((now - last_interrupt_time) > (DEBOUNCE_TIME_MS * 1000)) {
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last_interrupt_time = now;
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uintptr_t pin_value = (uintptr_t)arg;
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uint8_t press_signal = (uint8_t)pin_value;
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BaseType_t higherPriorityTaskWoken = pdFALSE;
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xQueueSendFromISR(buttonQueue, &press_signal, &higherPriorityTaskWoken);
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if(higherPriorityTaskWoken) {
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portYIELD_FROM_ISR();
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}
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}
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}
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void setupButtons(void) {
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buttonQueue = xQueueCreate(BUTTON_QUEUE_LENGTH, BUTTON_QUEUE_ITEM_SIZE);
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if(buttonQueue == NULL) {
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ESP_LOGE(TAG, "Error while Queue creation!");
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return;
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}
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ESP_LOGI(TAG, "Button Queue created.");
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esp_err_t isr_service_err = gpio_install_isr_service(ESP_INTR_FLAG_IRAM);
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if(isr_service_err != ESP_OK && isr_service_err != ESP_ERR_INVALID_STATE) {
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ESP_LOGE(TAG, "Error in gpio_install_isr_service: %s", esp_err_to_name(isr_service_err));
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}
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for(int i = 0; i < sizeof(pins) / sizeof(pins[0]); i++) {
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const uint8_t pin = pins[i];
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gpio_config_t io_conf;
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io_conf.intr_type = GPIO_INTR_NEGEDGE;
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io_conf.pin_bit_mask = (1ULL << pin);
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io_conf.mode = GPIO_MODE_INPUT;
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io_conf.pull_up_en = GPIO_PULLUP_ENABLE;
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io_conf.pull_down_en = GPIO_PULLDOWN_DISABLE;
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gpio_config(&io_conf);
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uintptr_t pin_as_arg = (uintptr_t)pin;
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esp_err_t add_isr_err = gpio_isr_handler_add(pin, button_isr_handler, (void*)pin_as_arg);
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if(add_isr_err != ESP_OK) {
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ESP_LOGE(TAG, "Error in gpio_isr_handler_add: %s", esp_err_to_name(add_isr_err));
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}
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ESP_LOGI(TAG, "Button interrupt configured for GPIO %d", pin);
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}
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}
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