31b2702387
esp_netif_init() returns standard esp_err_t error code (unlike tcpip_adapter init), so shall be checked for the return value Also to make the initialization code more consistent.
123 lines
4.6 KiB
C
123 lines
4.6 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.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 "esp_netif.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 = "smartconfig_example";
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static void smartconfig_example_task(void * parm);
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static void event_handler(void* arg, esp_event_base_t event_base,
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int32_t event_id, void* event_data)
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{
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if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) {
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xTaskCreate(smartconfig_example_task, "smartconfig_example_task", 4096, NULL, 3, NULL);
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} else if (event_base == WIFI_EVENT && event_id == WIFI_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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} else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
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xEventGroupSetBits(s_wifi_event_group, CONNECTED_BIT);
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} else if (event_base == SC_EVENT && event_id == SC_EVENT_SCAN_DONE) {
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ESP_LOGI(TAG, "Scan done");
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} else if (event_base == SC_EVENT && event_id == SC_EVENT_FOUND_CHANNEL) {
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ESP_LOGI(TAG, "Found channel");
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} else if (event_base == SC_EVENT && event_id == SC_EVENT_GOT_SSID_PSWD) {
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ESP_LOGI(TAG, "Got SSID and password");
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smartconfig_event_got_ssid_pswd_t *evt = (smartconfig_event_got_ssid_pswd_t *)event_data;
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wifi_config_t wifi_config;
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uint8_t ssid[33] = { 0 };
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uint8_t password[65] = { 0 };
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bzero(&wifi_config, sizeof(wifi_config_t));
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memcpy(wifi_config.sta.ssid, evt->ssid, sizeof(wifi_config.sta.ssid));
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memcpy(wifi_config.sta.password, evt->password, sizeof(wifi_config.sta.password));
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wifi_config.sta.bssid_set = evt->bssid_set;
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if (wifi_config.sta.bssid_set == true) {
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memcpy(wifi_config.sta.bssid, evt->bssid, sizeof(wifi_config.sta.bssid));
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}
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memcpy(ssid, evt->ssid, sizeof(evt->ssid));
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memcpy(password, evt->password, sizeof(evt->password));
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ESP_LOGI(TAG, "SSID:%s", ssid);
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ESP_LOGI(TAG, "PASSWORD:%s", 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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} else if (event_base == SC_EVENT && event_id == SC_EVENT_SEND_ACK_DONE) {
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xEventGroupSetBits(s_wifi_event_group, ESPTOUCH_DONE_BIT);
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}
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}
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static void initialise_wifi(void)
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{
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ESP_ERROR_CHECK(esp_netif_init());
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s_wifi_event_group = xEventGroupCreate();
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ESP_ERROR_CHECK(esp_event_loop_create_default());
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esp_netif_t *sta_netif = esp_netif_create_default_wifi_sta();
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assert(sta_netif);
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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_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &event_handler, NULL) );
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ESP_ERROR_CHECK( esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &event_handler, NULL) );
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ESP_ERROR_CHECK( esp_event_handler_register(SC_EVENT, ESP_EVENT_ANY_ID, &event_handler, NULL) );
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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 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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smartconfig_start_config_t cfg = SMARTCONFIG_START_CONFIG_DEFAULT();
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ESP_ERROR_CHECK( esp_smartconfig_start(&cfg) );
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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(void)
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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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