139 lines
4.0 KiB
C
139 lines
4.0 KiB
C
#include <string.h>
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#include <stdint.h>
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#include <sys/param.h>
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#include "main/wifi_configuration.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_system.h"
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#include "esp_wifi.h"
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#include "esp_event_loop.h"
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#include "esp_log.h"
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// #include "nvs_flash.h"
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// #include "lwip/err.h"
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// #include "lwip/sockets.h"
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// #include "lwip/sys.h"
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// #include <lwip/netdb.h>
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static EventGroupHandle_t wifi_event_group;
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static int ssid_index = 0;
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const int IPV4_GOTIP_BIT = BIT0;
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#ifdef CONFIG_EXAMPLE_IPV6
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const int IPV6_GOTIP_BIT = BIT1;
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#endif
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static void ssid_change();
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static esp_err_t event_handler(void *ctx, system_event_t *event) {
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/* For accessing reason codes in case of disconnection */
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system_event_info_t *info = &event->event_info;
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switch (event->event_id) {
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case SYSTEM_EVENT_STA_START:
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esp_wifi_connect();
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break;
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case SYSTEM_EVENT_STA_CONNECTED:
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#ifdef CONFIG_EXAMPLE_IPV6
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/* enable ipv6 */
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tcpip_adapter_create_ip6_linklocal(TCPIP_ADAPTER_IF_STA);
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#endif
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break;
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case SYSTEM_EVENT_STA_GOT_IP:
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xEventGroupSetBits(wifi_event_group, IPV4_GOTIP_BIT);
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os_printf("SYSTEM EVENT STA GOT IP : %s\r\n", 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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os_printf("Disconnect reason : %d\r\n", (int)info->disconnected.reason);
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if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
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/*Switch to 802.11 bgn mode */
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esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
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}
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ssid_change();
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esp_wifi_connect();
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xEventGroupClearBits(wifi_event_group, IPV4_GOTIP_BIT);
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#ifdef CONFIG_EXAMPLE_IPV6
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xEventGroupClearBits(wifi_event_group, IPV6_GOTIP_BIT);
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#endif
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#if (USE_UART_BRIDGE == 1)
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uart_bridge_close();
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#endif
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break;
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case SYSTEM_EVENT_AP_STA_GOT_IP6:
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#ifdef CONFIG_EXAMPLE_IPV6
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xEventGroupSetBits(wifi_event_group, IPV6_GOTIP_BIT);
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os_printf("SYSTEM_EVENT_STA_GOT_IP6\r\n");
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char *ip6 = ip6addr_ntoa(&event->event_info.got_ip6.ip6_info.ip);
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os_printf("IPv6: %s\r\n", ip6);
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#endif
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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 ssid_change() {
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wifi_config_t wifi_config;
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if (ssid_index > WIFI_LIST_SIZE - 1) {
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ssid_index = 0;
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}
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strcpy((char *)wifi_config.sta.ssid, wifi_list[ssid_index].ssid);
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strcpy((char *)wifi_config.sta.password, wifi_list[ssid_index].password);
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ssid_index++;
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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_start());
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}
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static void wait_for_ip() {
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#ifdef CONFIG_EXAMPLE_IPV6
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uint32_t bits = IPV4_GOTIP_BIT | IPV6_GOTIP_BIT;
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#else
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uint32_t bits = IPV4_GOTIP_BIT;
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#endif
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os_printf("Waiting for AP connection...\r\n");
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xEventGroupWaitBits(wifi_event_group, bits, false, true, portMAX_DELAY);
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os_printf("Connected to AP\r\n");
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}
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void wifi_init(void) {
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tcpip_adapter_init();
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#if (USE_STATIC_IP == 1)
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tcpip_adapter_dhcps_stop(TCPIP_ADAPTER_IF_STA);
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tcpip_adapter_ip_info_t ip_info;
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#define MY_IP4_ADDR(...) IP4_ADDR(__VA_ARGS__)
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MY_IP4_ADDR(&ip_info.ip, DAP_IP_ADDRESS);
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MY_IP4_ADDR(&ip_info.gw, DAP_IP_GATEWAY);
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MY_IP4_ADDR(&ip_info.netmask, DAP_IP_NETMASK);
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#undef MY_IP4_ADDR
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tcpip_adapter_set_ip_info(TCPIP_ADAPTER_IF_STA, &ip_info);
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#endif // (USE_STATIC_IP == 1)
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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_storage(WIFI_STORAGE_RAM));
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// os_printf("Setting WiFi configuration SSID %s...\r\n", wifi_config.sta.ssid);
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ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
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ESP_ERROR_CHECK(esp_wifi_set_ps(WIFI_PS_NONE));
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ssid_change();
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ESP_ERROR_CHECK(esp_wifi_start());
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wait_for_ip();
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}
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