SolarEnergy/esp32_device/main/ethernet.c

#define CONFIG_ETH_USE_ESP32_EMAC

#include "esp_eth.h"
#include "esp_eth_mac.h"
#include "esp_eth_com.h"
#include "esp_eth_mac.h"
#include "esp_eth_phy.h"
#include "esp_err.h"
#include "esp_event.h"
#include "esp_netif.h"
#include "driver/gpio.h"
#include "esp_log.h"
#include "system.h"

static const char *TAG = "ethernet";

void ethernet_init()
{
    if (esp_netif_init() != ESP_OK)
    {
        ESP_LOGE(TAG, "esp_netif_init failed!");
        reboot();
    }

    esp_err_t err = esp_event_loop_create_default();
    if (err != ESP_OK && err != ESP_ERR_INVALID_STATE)
    {
        ESP_LOGE(TAG, "esp_event_loop_create_default failed!");
        reboot();
    }

    ESP_LOGI(TAG, "Initializing Ethernet MAC for WirelessTag WT32-ETH01...");
    eth_esp32_emac_config_t mac_config = ETH_ESP32_EMAC_DEFAULT_CONFIG();
    mac_config.clock_config.rmii.clock_mode = EMAC_CLK_EXT_IN;
    mac_config.clock_config.rmii.clock_gpio = EMAC_CLK_IN_GPIO;
    mac_config.smi_mdc_gpio_num = GPIO_NUM_23;
    mac_config.smi_mdio_gpio_num = GPIO_NUM_18;

    eth_mac_config_t eth_mac_config = ETH_MAC_DEFAULT_CONFIG();
    eth_mac_config.sw_reset_timeout_ms = 1000;
    esp_eth_mac_t *mac = esp_eth_mac_new_esp32(&mac_config, &eth_mac_config);
    if (mac == NULL)
    {
        ESP_LOGE(TAG, "esp_eth_mac_new_esp32 failed!");
        reboot();
    }

    ESP_LOGI(TAG, "Initializing Ethernet PHY (LAN8720A) for WT32-ETH01...");
    eth_phy_config_t phy_config = ETH_PHY_DEFAULT_CONFIG();
    phy_config.phy_addr = 1;
    phy_config.reset_gpio_num = -1;
    esp_eth_phy_t *phy = esp_eth_phy_new_lan87xx(&phy_config);

    // Enable external oscillator (pulled down at boot to allow IO0 strapping)
    ESP_ERROR_CHECK(gpio_set_direction(GPIO_NUM_16, GPIO_MODE_OUTPUT));
    ESP_ERROR_CHECK(gpio_set_level(GPIO_NUM_16, 1));
    ESP_LOGI(TAG, "Starting Ethernet interface...");

    // Install and start Ethernet driver
    esp_eth_config_t eth_config = ETH_DEFAULT_CONFIG(mac, phy);
    esp_eth_handle_t eth_handle = NULL;
    ESP_ERROR_CHECK(esp_eth_driver_install(&eth_config, &eth_handle));
    if (eth_handle == NULL)
    {
        ESP_LOGE(TAG, "esp_eth_driver_install failed!");
        reboot();
    }

    esp_netif_config_t const netif_config = ESP_NETIF_DEFAULT_ETH();
    esp_netif_t *global_netif = esp_netif_new(&netif_config);
    esp_eth_netif_glue_handle_t eth_netif_glue = esp_eth_new_netif_glue(eth_handle);
    if (eth_netif_glue == NULL)
    {
        ESP_LOGE(TAG, "esp_eth_new_netif_glue failed!");
        reboot();
    }
    ESP_ERROR_CHECK(esp_netif_attach(global_netif, eth_netif_glue));
    ESP_ERROR_CHECK(esp_eth_start(eth_handle));
    printf("Start Ethernet interface!\n");

    /*ESP_LOGI(TAG, "Initializing Ethernet MAC for WirelessTag WT32-ETH01...");
    eth_mac_config_t mac_config = ETH_MAC_DEFAULT_CONFIG();
    eth_phy_config_t phy_config = ETH_PHY_DEFAULT_CONFIG();
    phy_config.clock_config.rmii.clock_mode = EMAC_CLK_EXT_IN;
    mac_config.clock_config.rmii.clock_gpio = EMAC_CLK_IN_GPIO;
    phy_config.smi_mdc_gpio_num = 23;
    phy_config.smi_mdio_gpio_num = 18;
    mac_config.sw_reset_timeout_ms = 1000; // from ETH.cpp
    mac = esp_eth_mac_new_esp32(&mac_config);

    ESP_LOGI(TAG, "Initializing Ethernet PHY (LAN8720A) for WT32-ETH01...");
    eth_phy_config_t phy_config = ETH_PHY_DEFAULT_CONFIG();
    phy_config.phy_addr = 1;
    phy_config.reset_gpio_num = -1;
    phy = esp_eth_phy_new_lan87xx(&phy_config);

    // Enable external oscillator (pulled down at boot to allow IO0 strapping)
    ESP_ERROR_CHECK(gpio_set_direction(GPIO_NUM_16, GPIO_MODE_OUTPUT));
    ESP_ERROR_CHECK(gpio_set_level(GPIO_NUM_16, 1));
    ESP_LOGI(TAG, "Starting Ethernet interface...");

    // Install and start Ethernet driver
    esp_eth_config_t eth_config = ETH_DEFAULT_CONFIG(mac, phy);
    esp_eth_handle_t eth_handle = nullptr;
    ESP_ERROR_CHECK(esp_eth_driver_install(&eth_config, &eth_handle));

    esp_netif_config_t const netif_config = ESP_NETIF_DEFAULT_ETH();
    global_netif = esp_netif_new(&netif_config);
    auto const eth_netif_glue = esp_eth_new_netif_glue(eth_handle);
    ESP_ERROR_CHECK(esp_netif_attach(global_netif, eth_netif_glue));
    ESP_ERROR_CHECK(esp_eth_start(eth_handle));*/
}