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gpio.c
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gpio.c
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/*
* gpio.c
*
* Created on: 16-Nov-2022
* Author: abhes
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/queue.h"
#include "freertos/event_groups.h"
#include "driver/gpio.h"
#include "esp_log.h"
#include "esp_system.h"
#include "gpio_main.h"
#include "mqtt.h"
static QueueHandle_t led_queue_handle;
static TaskHandle_t led_task_handle = NULL;
static const char *TAG = "GPIO";
static bool is_task_suspended = false;
int relayState = 0;
int ledState = 0;
bool led_blink_state = true;
BaseType_t led_send_message(led_messages_e led_msgID)
{
led_queue_message_t led_msg;
led_msg.led_message = led_msgID;
return xQueueSend(led_queue_handle, &led_msg, portMAX_DELAY);
}
void set_led_state(bool arg){
led_blink_state = arg;
}
bool led_state(void){
return led_blink_state;
}
void led_blink_function(uint32_t duration){
while(led_blink_state){
led_blink_state = led_state();
if(!led_blink_state){
break;
}
gpio_set_level(LED, 0);
vTaskDelay(duration/portTICK_PERIOD_MS);
gpio_set_level(LED,1);
vTaskDelay(duration/portTICK_PERIOD_MS);
}
}
void suspend_led_task(void){
vTaskSuspend(led_task_handle);
is_task_suspended = true;
}
void resume_led_task(void){
vTaskResume(led_task_handle);
is_task_suspended = false;
}
void led_task(void){
led_queue_message_t msg;
uint32_t blink_duration = 1000;
// led_send_message(LED_BLINK_FAST_START);
while(1){
if (xQueueReceive(led_queue_handle, &msg, portMAX_DELAY))
{
switch(msg.led_message)
{
case LED_BLINK_SLOW_START:
ESP_LOGI(TAG, "LED_BLINK_SLOW_START");
led_blink_function(1000);
xQueueReset(led_queue_handle);
break;
case LED_BLINK_SLOW_STOP:
ESP_LOGI(TAG, "LED_BLINK_SLOW_STOP");
suspend_led_task();
break;
case LED_BLINK_FAST_START:
ESP_LOGI(TAG, "LED_BLINK_FAST_START");
led_blink_function(1000);
break;
case LED_BLINK_FAST_STOP:
ESP_LOGI(TAG, "LED_BLINK_FAST_STOP");
led_blink_function(2000);
suspend_led_task();
break;
case LED_BLINK_STOP:
ESP_LOGI(TAG, "LED_BLINK_STOP");
suspend_led_task();
break;
default:
break;
}
}
}
}
void gpio_main(void)
{
gpio_config_t io_conf;
//disable interrupt
io_conf.intr_type = GPIO_INTR_DISABLE;
//set as output mode
io_conf.mode = GPIO_MODE_OUTPUT;
//bit mask of the pins that you want to set,e.g.GPIO15/16
io_conf.pin_bit_mask = GPIO_OUTPUT_PIN_SEL;
//disable pull-down mode
io_conf.pull_down_en = 0;
//disable pull-up mode
io_conf.pull_up_en = 0;
//configure GPIO with the given settings
gpio_config(&io_conf);
gpio_set_level(RELAY, 0);
gpio_set_level(LED, 0);
led_queue_handle = xQueueCreate(5,sizeof(led_queue_message_t));
xTaskCreate(&led_task, "led_task", 4096, NULL, 5, &led_task_handle);
}