a3b5a23b87
This change adds a check for compatibility between the nvs version found on nvs flash and the one assumed by running code during nvs initialization. Any mismatch is reported to the user using new error code ESP_ERR_NVS_NEW_VERSION_FOUND.
123 lines
3.7 KiB
C
123 lines
3.7 KiB
C
/* WiFi Connection Example using WPS
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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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/*
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Showing how to use WPS.
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WPS_TYPE_PBC: Start esp32 and it will enter wps PBC mode. Then push the button of wps on router down. The esp32 will connected to the router.
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WPS_TYPE_PIN: Start esp32, You'll see PIN code which is a eight-digit number showing on COM. Enter the PIN code in router and then the esp32 will connected to router.
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*/
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#include "freertos/FreeRTOS.h"
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#include "freertos/event_groups.h"
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#include "esp_wifi.h"
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#include "esp_log.h"
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#include "esp_wps.h"
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#include "esp_event_loop.h"
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#include "nvs_flash.h"
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/*set wps mode via "make menuconfig"*/
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#if CONFIG_EXAMPLE_WPS_TYPE_PBC
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#define WPS_TEST_MODE WPS_TYPE_PBC
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#elif CONFIG_EXAMPLE_WPS_TYPE_PIN
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#define WPS_TEST_MODE WPS_TYPE_PIN
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#else
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#define WPS_TEST_MODE WPS_TYPE_DISABLE
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#endif /*CONFIG_EXAMPLE_WPS_TYPE_PBC*/
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#ifndef PIN2STR
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#define PIN2STR(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5], (a)[6], (a)[7]
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#define PINSTR "%c%c%c%c%c%c%c%c"
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#endif
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static const char *TAG = "example_wps";
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static esp_wps_config_t config = WPS_CONFIG_INIT_DEFAULT(WPS_TEST_MODE);
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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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ESP_LOGI(TAG, "SYSTEM_EVENT_STA_START");
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break;
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case SYSTEM_EVENT_STA_GOT_IP:
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ESP_LOGI(TAG, "SYSTEM_EVENT_STA_GOT_IP");
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ESP_LOGI(TAG, "got ip:%s\n",
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ip4addr_ntoa(&event->event_info.got_ip.ip_info.ip));
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break;
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case SYSTEM_EVENT_STA_DISCONNECTED:
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ESP_LOGI(TAG, "SYSTEM_EVENT_STA_DISCONNECTED");
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ESP_ERROR_CHECK(esp_wifi_connect());
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break;
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case SYSTEM_EVENT_STA_WPS_ER_SUCCESS:
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/*point: the function esp_wifi_wps_start() only get ssid & password
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* so call the function esp_wifi_connect() here
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* */
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ESP_LOGI(TAG, "SYSTEM_EVENT_STA_WPS_ER_SUCCESS");
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ESP_ERROR_CHECK(esp_wifi_wps_disable());
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ESP_ERROR_CHECK(esp_wifi_connect());
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break;
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case SYSTEM_EVENT_STA_WPS_ER_FAILED:
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ESP_LOGI(TAG, "SYSTEM_EVENT_STA_WPS_ER_FAILED");
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ESP_ERROR_CHECK(esp_wifi_wps_disable());
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ESP_ERROR_CHECK(esp_wifi_wps_enable(&config));
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ESP_ERROR_CHECK(esp_wifi_wps_start(0));
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break;
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case SYSTEM_EVENT_STA_WPS_ER_TIMEOUT:
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ESP_LOGI(TAG, "SYSTEM_EVENT_STA_WPS_ER_TIMEOUT");
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ESP_ERROR_CHECK(esp_wifi_wps_disable());
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ESP_ERROR_CHECK(esp_wifi_wps_enable(&config));
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ESP_ERROR_CHECK(esp_wifi_wps_start(0));
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break;
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case SYSTEM_EVENT_STA_WPS_ER_PIN:
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ESP_LOGI(TAG, "SYSTEM_EVENT_STA_WPS_ER_PIN");
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/*show the PIN code here*/
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ESP_LOGI(TAG, "WPS_PIN = "PINSTR, PIN2STR(event->event_info.sta_er_pin.pin_code));
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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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/*init wifi as sta and start wps*/
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static void start_wps(void)
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{
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tcpip_adapter_init();
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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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ESP_LOGI(TAG, "start wps...");
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ESP_ERROR_CHECK(esp_wifi_wps_enable(&config));
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ESP_ERROR_CHECK(esp_wifi_wps_start(0));
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}
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void app_main()
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{
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/* Initialize NVS — it is used to store PHY calibration data */
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esp_err_t ret = nvs_flash_init();
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if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
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ESP_ERROR_CHECK(nvs_flash_erase());
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ret = nvs_flash_init();
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}
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ESP_ERROR_CHECK( ret );
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start_wps();
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}
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