NVS is used to store PHY calibration data, WiFi configuration, and BT configuration. Previously BT examples did not call nvs_flash_init, relying on the fact that it is called during PHY init. However PHY init did not handle possible NVS initialization errors. This change moves PHY init procedure into the application, and adds diagnostic messages to BT config management routines if NVS is not initialized.
119 lines
3.6 KiB
C
119 lines
3.6 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_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(WPS_TEST_MODE));
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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(WPS_TEST_MODE));
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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(WPS_TEST_MODE));
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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) {
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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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