127 lines
3.9 KiB
C
127 lines
3.9 KiB
C
/* Esptouch example
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This example code is in the Public Domain (or CC0 licensed, at your option.)
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Unless required by applicable law or agreed to in writing, this
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software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied.
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*/
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#include <string.h>
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#include <stdlib.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "freertos/event_groups.h"
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#include "esp_wifi.h"
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#include "esp_wpa2.h"
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#include "esp_event_loop.h"
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#include "esp_log.h"
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#include "esp_system.h"
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#include "nvs_flash.h"
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#include "tcpip_adapter.h"
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#include "esp_smartconfig.h"
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/* FreeRTOS event group to signal when we are connected & ready to make a request */
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static EventGroupHandle_t s_wifi_event_group;
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/* The event group allows multiple bits for each event,
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but we only care about one event - are we connected
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to the AP with an IP? */
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static const int CONNECTED_BIT = BIT0;
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static const int ESPTOUCH_DONE_BIT = BIT1;
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static const char *TAG = "sc";
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void smartconfig_example_task(void * parm);
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static esp_err_t event_handler(void *ctx, system_event_t *event)
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{
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switch(event->event_id) {
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case SYSTEM_EVENT_STA_START:
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xTaskCreate(smartconfig_example_task, "smartconfig_example_task", 4096, NULL, 3, NULL);
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break;
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case SYSTEM_EVENT_STA_GOT_IP:
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xEventGroupSetBits(s_wifi_event_group, CONNECTED_BIT);
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break;
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case SYSTEM_EVENT_STA_DISCONNECTED:
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esp_wifi_connect();
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xEventGroupClearBits(s_wifi_event_group, CONNECTED_BIT);
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break;
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default:
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break;
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}
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return ESP_OK;
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}
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static void initialise_wifi(void)
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{
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tcpip_adapter_init();
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s_wifi_event_group = xEventGroupCreate();
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ESP_ERROR_CHECK( esp_event_loop_init(event_handler, NULL) );
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wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
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ESP_ERROR_CHECK( esp_wifi_init(&cfg) );
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ESP_ERROR_CHECK( esp_wifi_set_mode(WIFI_MODE_STA) );
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ESP_ERROR_CHECK( esp_wifi_start() );
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}
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static void sc_callback(smartconfig_status_t status, void *pdata)
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{
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switch (status) {
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case SC_STATUS_WAIT:
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ESP_LOGI(TAG, "SC_STATUS_WAIT");
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break;
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case SC_STATUS_FIND_CHANNEL:
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ESP_LOGI(TAG, "SC_STATUS_FINDING_CHANNEL");
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break;
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case SC_STATUS_GETTING_SSID_PSWD:
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ESP_LOGI(TAG, "SC_STATUS_GETTING_SSID_PSWD");
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break;
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case SC_STATUS_LINK:
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ESP_LOGI(TAG, "SC_STATUS_LINK");
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wifi_config_t *wifi_config = pdata;
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ESP_LOGI(TAG, "SSID:%s", wifi_config->sta.ssid);
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ESP_LOGI(TAG, "PASSWORD:%s", wifi_config->sta.password);
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ESP_ERROR_CHECK( esp_wifi_disconnect() );
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ESP_ERROR_CHECK( esp_wifi_set_config(ESP_IF_WIFI_STA, wifi_config) );
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ESP_ERROR_CHECK( esp_wifi_connect() );
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break;
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case SC_STATUS_LINK_OVER:
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ESP_LOGI(TAG, "SC_STATUS_LINK_OVER");
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if (pdata != NULL) {
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uint8_t phone_ip[4] = { 0 };
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memcpy(phone_ip, (uint8_t* )pdata, 4);
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ESP_LOGI(TAG, "Phone ip: %d.%d.%d.%d\n", phone_ip[0], phone_ip[1], phone_ip[2], phone_ip[3]);
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}
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xEventGroupSetBits(s_wifi_event_group, ESPTOUCH_DONE_BIT);
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break;
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default:
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break;
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}
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}
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void smartconfig_example_task(void * parm)
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{
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EventBits_t uxBits;
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ESP_ERROR_CHECK( esp_smartconfig_set_type(SC_TYPE_ESPTOUCH) );
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ESP_ERROR_CHECK( esp_smartconfig_start(sc_callback) );
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while (1) {
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uxBits = xEventGroupWaitBits(s_wifi_event_group, CONNECTED_BIT | ESPTOUCH_DONE_BIT, true, false, portMAX_DELAY);
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if(uxBits & CONNECTED_BIT) {
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ESP_LOGI(TAG, "WiFi Connected to ap");
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}
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if(uxBits & ESPTOUCH_DONE_BIT) {
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ESP_LOGI(TAG, "smartconfig over");
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esp_smartconfig_stop();
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vTaskDelete(NULL);
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}
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}
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}
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void app_main()
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{
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ESP_ERROR_CHECK( nvs_flash_init() );
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initialise_wifi();
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}
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