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board/main/mqtt.c

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C
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "cJSON.h"
#include "ci_03t.c"
#include "embedded_display.c"
#include "esp_bit_defs.h"
#include "esp_event.h"
#include "esp_log.h"
#include "esp_system.h"
#include "freertos/FreeRTOS.h"
#include "freertos/event_groups.h"
#include "freertos/queue.h"
#include "freertos/semphr.h"
#include "freertos/task.h"
#include "mqtt_client.h"
#include "ui_input.c"
#define MQTT_BROKER_URL CONFIG_MQTT_BROKER_URL
#define NUMBER_OF_LEDS CONFIG_NUMBER_OF_LEDS
#define MQTT_FAILED_BIT BIT0
#define MQTT_CONNECTED_BIT BIT1
#define MQTT_DISCONNECTED_BIT BIT2
#define MQTT_DESKTOP_ONLINE_BIT BIT3
#define MQTT_DESKTOP_OFFLINE_BIT BIT4
#define MQTT_DESKTOP_SENDING_BIT BIT5
#define MQTT_COLORS_STAND_BY_BIT BIT6
#define MQTT_BOARD_KEY_PREFIX "display-ambient-light/board/"
#define MQTT_DESKTOP_KEY_PREFIX "display-ambient-light/desktop/"
#define MQTT_ONLINE_SUFFIX "online"
#define MQTT_COLORS_SUFFIX "colors"
#define MQTT_CMD_SUFFIX "cmd"
#define MQTT_ALL_SUFFIX "#"
#define MQTT_KEY_BOARD_ONLINE MQTT_BOARD_KEY_PREFIX MQTT_ONLINE_SUFFIX
#define MQTT_KEY_DISPLAY_BRIGHTNESS_INPUT MQTT_BOARD_KEY_PREFIX "brightness"
#define MQTT_KEY_DESKTOP_ONLINE MQTT_DESKTOP_KEY_PREFIX MQTT_ONLINE_SUFFIX
#define MQTT_KEY_DESKTOP_COLORS MQTT_DESKTOP_KEY_PREFIX MQTT_COLORS_SUFFIX
#define MQTT_KEY_DESKTOP_ALL MQTT_DESKTOP_KEY_PREFIX MQTT_ALL_SUFFIX
#define MQTT_KEY_DESKTOP_COLOR_CALIBRATION \
MQTT_DESKTOP_KEY_PREFIX "color-calibration"
#define MQTT_KEY_BOARD_CMD MQTT_BOARD_KEY_PREFIX MQTT_CMD_SUFFIX
#define MQTT_KEY_DESKTOP_DISPLAY_0_BRIGHTNESS \
MQTT_DESKTOP_KEY_PREFIX "display0/brightness"
#define MQTT_KEY_DESKTOP_DISPLAY_1_BRIGHTNESS \
MQTT_DESKTOP_KEY_PREFIX "display1/brightness"
static const char *MQTT_TAG = "DisplayAmbientLight_MQTT";
static EventGroupHandle_t s_mqtt_event_group;
static QueueHandle_t mqtt_cmd_event = NULL;
static esp_mqtt_client_handle_t client = NULL;
typedef struct colors {
uint8_t *buffer;
uint8_t number;
} s_colors_t;
static uint8_t *mqtt_colors_buffer;
static void log_error_if_nonzero(const char *message, int error_code) {
if (error_code != 0) {
ESP_LOGE(MQTT_TAG, "Last error %s: 0x%x", message, error_code);
}
}
static void mqtt_event_handler(void *handler_args, esp_event_base_t base,
long event_id, void *event_data) {
ESP_LOGD(MQTT_TAG, "Event dispatched from event loop base=%s, event_id=%ld",
base, event_id);
esp_mqtt_event_handle_t event = event_data;
client = event->client;
int msg_id;
switch ((esp_mqtt_event_id_t)event_id) {
case MQTT_EVENT_CONNECTED:
ESP_LOGI(MQTT_TAG, "MQTT_EVENT_CONNECTED");
xEventGroupSetBits(s_mqtt_event_group, MQTT_CONNECTED_BIT);
msg_id = esp_mqtt_client_publish(client, MQTT_KEY_BOARD_ONLINE, "ONLINE",
0, 1, 0);
ESP_LOGI(MQTT_TAG, "sent publish successful, msg_id=%d", msg_id);
esp_mqtt_client_subscribe(client, MQTT_KEY_DESKTOP_ALL, 1);
break;
case MQTT_EVENT_DISCONNECTED:
ESP_LOGI(MQTT_TAG, "MQTT_EVENT_DISCONNECTED");
xEventGroupSetBits(s_mqtt_event_group, MQTT_DISCONNECTED_BIT);
break;
case MQTT_EVENT_SUBSCRIBED:
ESP_LOGI(MQTT_TAG, "MQTT_EVENT_SUBSCRIBED, msg_id=%d", event->msg_id);
break;
case MQTT_EVENT_UNSUBSCRIBED:
ESP_LOGI(MQTT_TAG, "MQTT_EVENT_UNSUBSCRIBED, msg_id=%d", event->msg_id);
break;
case MQTT_EVENT_PUBLISHED:
ESP_LOGI(MQTT_TAG, "MQTT_EVENT_PUBLISHED, msg_id=%d", event->msg_id);
break;
case MQTT_EVENT_DATA:
// ESP_LOGI(MQTT_TAG, "MQTT_EVENT_DATA");
if (strncmp(event->topic, MQTT_KEY_DESKTOP_ONLINE, event->topic_len) ==
0) {
xEventGroupSetBits(s_mqtt_event_group, MQTT_DESKTOP_ONLINE_BIT);
} else if (strncmp(event->topic, MQTT_KEY_DESKTOP_COLORS,
event->topic_len) == 0) {
// printf("LEN=%d, DATA=%.*s\r\n", event->data_len, event->data_len,
// event->data);
memcpy(mqtt_colors_buffer, event->data,
MIN(event->data_len, NUMBER_OF_LEDS * 3));
xEventGroupSetBits(s_mqtt_event_group,
MQTT_DESKTOP_SENDING_BIT | MQTT_COLORS_STAND_BY_BIT);
} else {
if (strncmp(event->topic, MQTT_KEY_DESKTOP_DISPLAY_0_BRIGHTNESS,
event->topic_len) == 0) {
s_ui_input_t mqtt_event = {
.key = ui_input_key_display_0_brightness,
.value = (uint16_t)(event->data[0] << 8 | event->data[1]),
};
xQueueSend(mqtt_cmd_event, &mqtt_event, NULL);
} else if (strncmp(event->topic, MQTT_KEY_DESKTOP_DISPLAY_1_BRIGHTNESS,
event->topic_len) == 0) {
s_ui_input_t mqtt_event = {
.key = ui_input_key_display_1_brightness,
.value = (uint16_t)(event->data[0] << 8 | event->data[1]),
};
xQueueSend(mqtt_cmd_event, &mqtt_event, NULL);
} else if (strncmp(event->topic, MQTT_KEY_DESKTOP_COLOR_CALIBRATION,
event->topic_len) == 0) {
led_strip_set_color_calibration((float)event->data[0] / 255.0,
(float)event->data[1] / 255.0,
(float)event->data[2] / 255.0);
} else {
printf("TOPIC=%.*s\r\n", event->topic_len, event->topic);
printf("DATA=%.*s\r\n", event->data_len, event->data);
}
}
break;
case MQTT_EVENT_ERROR:
ESP_LOGI(MQTT_TAG, "MQTT_EVENT_ERROR");
xEventGroupSetBits(s_mqtt_event_group, MQTT_FAILED_BIT);
if (event->error_handle->error_type == MQTT_ERROR_TYPE_TCP_TRANSPORT) {
log_error_if_nonzero("reported from esp-tls",
event->error_handle->esp_tls_last_esp_err);
log_error_if_nonzero("reported from tls stack",
event->error_handle->esp_tls_stack_err);
log_error_if_nonzero("captured as transport's socket errno",
event->error_handle->esp_transport_sock_errno);
ESP_LOGI(MQTT_TAG, "Last errno string (%s)",
strerror(event->error_handle->esp_transport_sock_errno));
}
break;
default:
ESP_LOGI(MQTT_TAG, "Other event id:%d", event->event_id);
break;
}
}
static void mqtt_cmd_event_handler(void *arg) {
s_ui_input_t event;
for (;;) {
if (xQueueReceive(mqtt_cmd_event, &event, portMAX_DELAY)) {
ESP_LOGI(MQTT_TAG, "mqtt_cmd_event_handler");
gui_update_config_uint8(ui_input_key_display_0_brightness,
(uint8_t)(event.value & 0xFF));
switch (event.key) {
case ui_input_key_display_0_brightness: {
ESP_LOGI(MQTT_TAG, "ui_input_key_display_0_brightness %x",
event.value);
uint8_t data[] = {0x02, (uint8_t)(event.value & 0xFF)};
ci_03t_send_data(data, sizeof(data));
break;
}
case ui_input_key_display_1_brightness: {
ESP_LOGI(MQTT_TAG, "ui_input_key_display_0_brightness %x",
event.value);
uint8_t data[] = {0x03, (uint8_t)(event.value & 0xFF)};
ci_03t_send_data(data, sizeof(data));
break;
}
default:
break;
}
}
}
}
static void mqtt_app_start() {
mqtt_colors_buffer = (uint8_t *)malloc(sizeof(uint8_t) * NUMBER_OF_LEDS * 3);
s_mqtt_event_group = xEventGroupCreate();
mqtt_cmd_event = xQueueCreate(10, sizeof(s_ui_input_t));
xTaskCreate(mqtt_cmd_event_handler, "mqtt_cmd_event", 2048, NULL, 10, NULL);
const esp_mqtt_client_config_t mqtt_cfg = {
.broker.address.uri = MQTT_BROKER_URL,
};
esp_mqtt_client_handle_t client = esp_mqtt_client_init(&mqtt_cfg);
esp_mqtt_client_register_event(client, ESP_EVENT_ANY_ID, mqtt_event_handler,
client);
esp_mqtt_client_start(client);
}
static bool waiting_for_mqtt_connected() {
EventBits_t bits = xEventGroupWaitBits(s_mqtt_event_group,
MQTT_CONNECTED_BIT | MQTT_FAILED_BIT,
pdFALSE, pdFALSE, portMAX_DELAY);
if (bits & MQTT_CONNECTED_BIT) {
return 1;
} else if (bits & MQTT_FAILED_BIT) {
ESP_LOGE(MQTT_TAG, "BBB Failed to connect to MQTT.");
return 0;
} else {
ESP_LOGE(MQTT_TAG, "UNEXPECTED EVENT");
return 0;
}
}
static bool waiting_for_desktop_online() {
EventBits_t bits = xEventGroupWaitBits(
s_mqtt_event_group, MQTT_DESKTOP_ONLINE_BIT | MQTT_DESKTOP_SENDING_BIT,
pdFALSE, pdFALSE, portMAX_DELAY);
if (bits & MQTT_DESKTOP_ONLINE_BIT) {
return 1;
} else if (bits & MQTT_DESKTOP_SENDING_BIT) {
return 1;
} else {
ESP_LOGE(MQTT_TAG, "UNEXPECTED EVENT");
return 0;
}
}
static bool waiting_for_desktop_sending_colors() {
EventBits_t bits =
xEventGroupWaitBits(s_mqtt_event_group, MQTT_DESKTOP_SENDING_BIT, pdFALSE,
pdFALSE, portMAX_DELAY);
ESP_LOGE(MQTT_TAG, "MQTT_DESKTOP_SENDING_BIT");
if (bits & MQTT_DESKTOP_SENDING_BIT) {
return 1;
} else {
ESP_LOGE(MQTT_TAG, "UNEXPECTED EVENT");
return 0;
}
}
static bool waiting_and_get_colors() {
EventBits_t bits =
xEventGroupWaitBits(s_mqtt_event_group, MQTT_COLORS_STAND_BY_BIT, pdFALSE,
pdFALSE, portMAX_DELAY);
if (bits & MQTT_COLORS_STAND_BY_BIT) {
xEventGroupClearBits(s_mqtt_event_group, MQTT_COLORS_STAND_BY_BIT);
return 1;
} else {
ESP_LOGE(MQTT_TAG, "UNEXPECTED EVENT");
return 0;
}
}
static void mqtt_publish_ui_input(void *arg) {
s_ui_input_t input;
for (;;) {
if (xQueueReceive(ui_input_event, &input, portMAX_DELAY)) {
switch (input.key) {
case ui_input_key_display_0_brightness:
case ui_input_key_display_1_brightness: {
cJSON *publish_json_root, *brightness;
publish_json_root = cJSON_CreateObject();
cJSON_AddNumberToObject(
publish_json_root, "display_index",
ui_input_key_display_0_brightness == input.key ? 0 : 1);
cJSON_AddItemToObject(publish_json_root, "brightness",
brightness = cJSON_CreateObject());
cJSON_AddNumberToObject(brightness, "Relative", input.value);
char *publish_str = cJSON_Print(publish_json_root);
cJSON_Delete(publish_json_root);
esp_mqtt_client_publish(client, MQTT_KEY_DISPLAY_BRIGHTNESS_INPUT,
publish_str, 0, 1, 0);
} break;
default:
break;
}
}
}
}
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