Files
the-waterinator/firmware/esp32/main/mqtt.cpp
T

108 lines
3.3 KiB
C++

#include "freertos/FreeRTOS.h"
#include "freertos/event_groups.h"
#include "esp_task_wdt.h"
#include "esp_event.h"
#include "esp_log.h"
#include "mqtt_client.h"
#include "main.hpp"
//#include "i2c.hpp"
#include "config-erick.h"
#define MQTT_TASK_TIMEOUT_MS 3000
static const char* TAG = "MQTT";
//static TaskHandle_t i2c_task_handle = NULL;
static esp_mqtt_client_handle_t mqtt_client = NULL;
static char global_rx_buffer[50];
static void mqtt_subscribe(void) {
esp_mqtt_client_subscribe(mqtt_client, "/topic/qos0", 0);
}
static void mqtt_event_handler(void *handler_args, esp_event_base_t base, int32_t event_id, void *event_data) {
esp_mqtt_event_handle_t event =(esp_mqtt_event_handle_t)event_data;
switch(event->event_id) {
case MQTT_EVENT_CONNECTED:
xEventGroupSetBits(connectivity_event_group, MQTT_CONNECTED_BIT);
mqtt_subscribe();
ESP_LOGV(TAG, "Connected to broker");
break;
case MQTT_EVENT_DISCONNECTED:
xEventGroupClearBits(connectivity_event_group, MQTT_CONNECTED_BIT);
ESP_LOGW(TAG, "Disconnected from broker");
break;
case MQTT_EVENT_DATA:
{
ESP_LOGD(TAG, "Data received");
int len = event->data_len;
if(len > sizeof(global_rx_buffer) - 1) len = sizeof(global_rx_buffer) - 1;
memcpy(global_rx_buffer, event->data, len);
global_rx_buffer[len] = '\0';
//if(i2c_task_handle != NULL) xTaskNotifyGive(i2c_task_handle);
break;
}
case MQTT_EVENT_ERROR:
ESP_LOGE(TAG, "Error event");
if(event->error_handle->error_type == MQTT_ERROR_TYPE_TCP_TRANSPORT) ESP_LOGE(TAG, "Network Error: %s", strerror(event->error_handle->esp_transport_sock_errno));
else if(event->error_handle->error_type == MQTT_ERROR_TYPE_CONNECTION_REFUSED) ESP_LOGE(TAG, "Connection Refused! Reason code: 0x%x", event->error_handle->connect_return_code);
break;
default:
break;
}
}
static void mqtt_init(void) {
esp_mqtt_client_config_t mqtt_cfg = {};
mqtt_cfg.broker.address.uri = MQTT_ADDR;
mqtt_cfg.broker.address.port = MQTT_PORT;
mqtt_cfg.credentials.username = MQTT_USER;
mqtt_cfg.credentials.authentication.password = MQTT_PASS;
mqtt_client = esp_mqtt_client_init(&mqtt_cfg);
if(mqtt_client == NULL) {
ESP_LOGE(TAG, "esp_mqtt_client_init returned NULL");
criticalErrorFlag = true;
}
esp_mqtt_client_register_event(mqtt_client, (esp_mqtt_event_id_t)ESP_EVENT_ANY_ID, mqtt_event_handler, NULL);
esp_mqtt_client_start(mqtt_client);
}
void mqtt_publish(void) {}
void mqttTask(void *pvParameters) {
ESP_LOGV(TAG, "Task started");
//i2c_task_handle = xTaskGetCurrentTaskHandle();
mqtt_init();
ESP_ERROR_CHECK(esp_task_wdt_add(NULL));
for(;;) {
ESP_LOGV(TAG, "Checking connection...");
xEventGroupWaitBits(connectivity_event_group, WIFI_CONNECTED_BIT | MQTT_CONNECTED_BIT, pdFALSE, pdTRUE, portMAX_DELAY);
ESP_LOGV(TAG, "Connection present");
uint32_t task_notification = ulTaskNotifyTake(pdTRUE, pdMS_TO_TICKS(MQTT_TASK_TIMEOUT_MS));
if(task_notification) {} //{twi_do(global_rx_buffer)}
ESP_ERROR_CHECK(esp_task_wdt_reset());
ESP_LOGV(TAG, "Task reset");
}
}