247 lines
8.3 KiB
C
247 lines
8.3 KiB
C
/* Common functions for protocol examples, to establish Wi-Fi or Ethernet connection.
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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 "protocol_examples_common.h"
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#include "sdkconfig.h"
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#include "esp_event.h"
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#include "esp_wifi.h"
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#if CONFIG_EXAMPLE_CONNECT_ETHERNET
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#include "esp_eth.h"
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#endif
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#include "esp_log.h"
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#include "tcpip_adapter.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 "lwip/err.h"
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#include "lwip/sys.h"
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#define GOT_IPV4_BIT BIT(0)
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#define GOT_IPV6_BIT BIT(1)
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#ifdef CONFIG_EXAMPLE_CONNECT_IPV6
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#define CONNECTED_BITS (GOT_IPV4_BIT | GOT_IPV6_BIT)
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#else
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#define CONNECTED_BITS (GOT_IPV4_BIT)
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#endif
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static EventGroupHandle_t s_connect_event_group;
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static ip4_addr_t s_ip_addr;
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static const char *s_connection_name;
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#ifdef CONFIG_EXAMPLE_CONNECT_IPV6
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static ip6_addr_t s_ipv6_addr;
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#endif
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static const char *TAG = "example_connect";
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/* set up connection, Wi-Fi or Ethernet */
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static void start();
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/* tear down connection, release resources */
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static void stop();
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static void on_got_ip(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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ip_event_got_ip_t *event = (ip_event_got_ip_t *)event_data;
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memcpy(&s_ip_addr, &event->ip_info.ip, sizeof(s_ip_addr));
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xEventGroupSetBits(s_connect_event_group, GOT_IPV4_BIT);
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}
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#ifdef CONFIG_EXAMPLE_CONNECT_IPV6
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static void on_got_ipv6(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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ip_event_got_ip6_t *event = (ip_event_got_ip6_t *)event_data;
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memcpy(&s_ipv6_addr, &event->ip6_info.ip, sizeof(s_ipv6_addr));
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xEventGroupSetBits(s_connect_event_group, GOT_IPV6_BIT);
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}
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#endif // CONFIG_EXAMPLE_CONNECT_IPV6
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esp_err_t example_connect()
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{
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if (s_connect_event_group != NULL) {
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return ESP_ERR_INVALID_STATE;
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}
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s_connect_event_group = xEventGroupCreate();
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start();
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xEventGroupWaitBits(s_connect_event_group, CONNECTED_BITS, true, true, portMAX_DELAY);
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ESP_LOGI(TAG, "Connected to %s", s_connection_name);
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ESP_LOGI(TAG, "IPv4 address: " IPSTR, IP2STR(&s_ip_addr));
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#ifdef CONFIG_EXAMPLE_CONNECT_IPV6
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ESP_LOGI(TAG, "IPv6 address: " IPV6STR, IPV62STR(s_ipv6_addr));
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#endif
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return ESP_OK;
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}
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esp_err_t example_disconnect()
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{
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if (s_connect_event_group == NULL) {
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return ESP_ERR_INVALID_STATE;
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}
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vEventGroupDelete(s_connect_event_group);
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s_connect_event_group = NULL;
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stop();
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ESP_LOGI(TAG, "Disconnected from %s", s_connection_name);
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s_connection_name = NULL;
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return ESP_OK;
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}
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#ifdef CONFIG_EXAMPLE_CONNECT_WIFI
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static void on_wifi_disconnect(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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ESP_LOGI(TAG, "Wi-Fi disconnected, trying to reconnect...");
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ESP_ERROR_CHECK(esp_wifi_connect());
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}
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#ifdef CONFIG_EXAMPLE_CONNECT_IPV6
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static void on_wifi_connect(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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tcpip_adapter_create_ip6_linklocal(TCPIP_ADAPTER_IF_STA);
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}
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#endif // CONFIG_EXAMPLE_CONNECT_IPV6
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static void start()
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{
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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, WIFI_EVENT_STA_DISCONNECTED, &on_wifi_disconnect, NULL));
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ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &on_got_ip, NULL));
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#ifdef CONFIG_EXAMPLE_CONNECT_IPV6
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ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_STA_CONNECTED, &on_wifi_connect, NULL));
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ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_GOT_IP6, &on_got_ipv6, NULL));
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#endif
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ESP_ERROR_CHECK(esp_wifi_set_storage(WIFI_STORAGE_RAM));
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wifi_config_t wifi_config = {
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.sta = {
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.ssid = CONFIG_EXAMPLE_WIFI_SSID,
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.password = CONFIG_EXAMPLE_WIFI_PASSWORD,
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},
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};
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ESP_LOGI(TAG, "Connecting to %s...", 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_config(ESP_IF_WIFI_STA, &wifi_config));
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ESP_ERROR_CHECK(esp_wifi_start());
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ESP_ERROR_CHECK(esp_wifi_connect());
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s_connection_name = CONFIG_EXAMPLE_WIFI_SSID;
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}
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static void stop()
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{
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ESP_ERROR_CHECK(esp_event_handler_unregister(WIFI_EVENT, WIFI_EVENT_STA_DISCONNECTED, &on_wifi_disconnect));
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ESP_ERROR_CHECK(esp_event_handler_unregister(IP_EVENT, IP_EVENT_STA_GOT_IP, &on_got_ip));
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#ifdef CONFIG_EXAMPLE_CONNECT_IPV6
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ESP_ERROR_CHECK(esp_event_handler_unregister(IP_EVENT, IP_EVENT_GOT_IP6, &on_got_ipv6));
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ESP_ERROR_CHECK(esp_event_handler_unregister(WIFI_EVENT, WIFI_EVENT_STA_CONNECTED, &on_wifi_connect));
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#endif
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ESP_ERROR_CHECK(esp_wifi_stop());
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ESP_ERROR_CHECK(esp_wifi_deinit());
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}
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#endif // CONFIG_EXAMPLE_CONNECT_WIFI
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#ifdef CONFIG_EXAMPLE_CONNECT_ETHERNET
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#ifdef CONFIG_EXAMPLE_CONNECT_IPV6
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/** Event handler for Ethernet events */
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static void on_eth_event(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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switch (event_id) {
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case ETHERNET_EVENT_CONNECTED:
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ESP_LOGI(TAG, "Ethernet Link Up");
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tcpip_adapter_create_ip6_linklocal(TCPIP_ADAPTER_IF_ETH);
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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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#endif // CONFIG_EXAMPLE_CONNECT_IPV6
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static esp_eth_handle_t s_eth_handle = NULL;
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static esp_eth_mac_t *s_mac = NULL;
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static esp_eth_phy_t *s_phy = NULL;
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static void start()
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{
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ESP_ERROR_CHECK(tcpip_adapter_set_default_eth_handlers());
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ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_ETH_GOT_IP, &on_got_ip, NULL));
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#ifdef CONFIG_EXAMPLE_CONNECT_IPV6
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ESP_ERROR_CHECK(esp_event_handler_register(ETH_EVENT, ETHERNET_EVENT_CONNECTED, &on_eth_event, NULL));
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ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_GOT_IP6, &on_got_ipv6, NULL));
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#endif
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eth_mac_config_t mac_config = ETH_MAC_DEFAULT_CONFIG();
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eth_phy_config_t phy_config = ETH_PHY_DEFAULT_CONFIG();
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#if CONFIG_EXAMPLE_USE_INTERNAL_ETHERNET
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s_mac = esp_eth_mac_new_esp32(&mac_config);
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#if CONFIG_EXAMPLE_ETH_PHY_IP101
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s_phy = esp_eth_phy_new_ip101(&phy_config);
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#elif CONFIG_EXAMPLE_ETH_PHY_RTL8201
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s_phy = esp_eth_phy_new_rtl8201(&phy_config);
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#elif CONFIG_EXAMPLE_ETH_PHY_LAN8720
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s_phy = esp_eth_phy_new_lan8720(&phy_config);
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#elif CONFIG_EXAMPLE_ETH_PHY_DP83848
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s_phy = esp_eth_phy_new_dp83848(&phy_config);
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#endif
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#elif CONFIG_EXAMPLE_USE_SPI_ETHERNET
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gpio_install_isr_service(0);
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spi_device_handle_t spi_handle = NULL;
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spi_bus_config_t buscfg = {
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.miso_io_num = CONFIG_EXAMPLE_ETH_MISO_GPIO,
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.mosi_io_num = CONFIG_EXAMPLE_ETH_MOSI_GPIO,
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.sclk_io_num = CONFIG_EXAMPLE_ETH_SCLK_GPIO,
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.quadwp_io_num = -1,
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.quadhd_io_num = -1,
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};
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ESP_ERROR_CHECK(spi_bus_initialize(CONFIG_EXAMPLE_ETH_SPI_HOST, &buscfg, 1));
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spi_device_interface_config_t devcfg = {
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.command_bits = 1,
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.address_bits = 7,
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.mode = 0,
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.clock_speed_hz = CONFIG_EXAMPLE_ETH_SPI_CLOCK_MHZ * 1000 * 1000,
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.spics_io_num = CONFIG_EXAMPLE_ETH_CS_GPIO,
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.queue_size = 20
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};
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ESP_ERROR_CHECK(spi_bus_add_device(CONFIG_EXAMPLE_ETH_SPI_HOST, &devcfg, &spi_handle));
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/* dm9051 ethernet driver is based on spi driver, so need to specify the spi handle */
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mac_config.spi_hdl = spi_handle;
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s_mac = esp_eth_mac_new_dm9051(&mac_config);
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s_phy = esp_eth_phy_new_dm9051(&phy_config);
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#endif
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esp_eth_config_t config = ETH_DEFAULT_CONFIG(s_mac, s_phy);
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ESP_ERROR_CHECK(esp_eth_driver_install(&config, &s_eth_handle));
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s_connection_name = "Ethernet";
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}
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static void stop()
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{
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ESP_ERROR_CHECK(esp_event_handler_unregister(IP_EVENT, IP_EVENT_ETH_GOT_IP, &on_got_ip));
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#ifdef CONFIG_EXAMPLE_CONNECT_IPV6
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ESP_ERROR_CHECK(esp_event_handler_unregister(IP_EVENT, IP_EVENT_GOT_IP6, &on_got_ipv6));
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ESP_ERROR_CHECK(esp_event_handler_unregister(ETH_EVENT, ETHERNET_EVENT_CONNECTED, &on_eth_event));
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#endif
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ESP_ERROR_CHECK(esp_eth_driver_uninstall(s_eth_handle));
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ESP_ERROR_CHECK(s_phy->del(s_phy));
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ESP_ERROR_CHECK(s_mac->del(s_mac));
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}
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#endif // CONFIG_EXAMPLE_CONNECT_ETHERNET
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