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examples/common_components/protocol_examples_common/eth_connect.c
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/*
* SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Unlicense OR CC0-1.0
*/
#include <string.h>
#include "protocol_examples_common.h"
#include "example_common_private.h"
#include "esp_event.h"
#include "esp_eth.h"
#if CONFIG_ETH_USE_SPI_ETHERNET
#include "driver/spi_master.h"
#endif // CONFIG_ETH_USE_SPI_ETHERNET
#include "esp_log.h"
#include "esp_mac.h"
#include "driver/gpio.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/event_groups.h"
static const char *TAG = "ethernet_connect";
static SemaphoreHandle_t s_semph_get_ip_addrs = NULL;
#if CONFIG_EXAMPLE_CONNECT_IPV6
static SemaphoreHandle_t s_semph_get_ip6_addrs = NULL;
#endif
static esp_netif_t *eth_start(void);
static void eth_stop(void);
/** Event handler for Ethernet events */
static void eth_on_got_ip(void *arg, esp_event_base_t event_base,
int32_t event_id, void *event_data)
{
ip_event_got_ip_t *event = (ip_event_got_ip_t *)event_data;
if (!example_is_our_netif(EXAMPLE_NETIF_DESC_ETH, event->esp_netif)) {
return;
}
ESP_LOGI(TAG, "Got IPv4 event: Interface \"%s\" address: " IPSTR, esp_netif_get_desc(event->esp_netif), IP2STR(&event->ip_info.ip));
xSemaphoreGive(s_semph_get_ip_addrs);
}
#if CONFIG_EXAMPLE_CONNECT_IPV6
static void eth_on_got_ipv6(void *arg, esp_event_base_t event_base,
int32_t event_id, void *event_data)
{
ip_event_got_ip6_t *event = (ip_event_got_ip6_t *)event_data;
if (!example_is_our_netif(EXAMPLE_NETIF_DESC_ETH, event->esp_netif)) {
return;
}
esp_ip6_addr_type_t ipv6_type = esp_netif_ip6_get_addr_type(&event->ip6_info.ip);
ESP_LOGI(TAG, "Got IPv6 event: Interface \"%s\" address: " IPV6STR ", type: %s", esp_netif_get_desc(event->esp_netif),
IPV62STR(event->ip6_info.ip), example_ipv6_addr_types_to_str[ipv6_type]);
if (ipv6_type == EXAMPLE_CONNECT_PREFERRED_IPV6_TYPE) {
xSemaphoreGive(s_semph_get_ip6_addrs);
}
}
static void on_eth_event(void *esp_netif, esp_event_base_t event_base,
int32_t event_id, void *event_data)
{
switch (event_id) {
case ETHERNET_EVENT_CONNECTED:
ESP_LOGI(TAG, "Ethernet Link Up");
ESP_ERROR_CHECK(esp_netif_create_ip6_linklocal(esp_netif));
break;
default:
break;
}
}
#endif // CONFIG_EXAMPLE_CONNECT_IPV6
static esp_eth_handle_t s_eth_handle = NULL;
static esp_eth_mac_t *s_mac = NULL;
static esp_eth_phy_t *s_phy = NULL;
static esp_eth_netif_glue_handle_t s_eth_glue = NULL;
static esp_netif_t *eth_start(void)
{
esp_netif_inherent_config_t esp_netif_config = ESP_NETIF_INHERENT_DEFAULT_ETH();
// Warning: the interface desc is used in tests to capture actual connection details (IP, gw, mask)
esp_netif_config.if_desc = EXAMPLE_NETIF_DESC_ETH;
esp_netif_config.route_prio = 64;
esp_netif_config_t netif_config = {
.base = &esp_netif_config,
.stack = ESP_NETIF_NETSTACK_DEFAULT_ETH
};
esp_netif_t *netif = esp_netif_new(&netif_config);
assert(netif);
eth_mac_config_t mac_config = ETH_MAC_DEFAULT_CONFIG();
mac_config.rx_task_stack_size = CONFIG_EXAMPLE_ETHERNET_EMAC_TASK_STACK_SIZE;
eth_phy_config_t phy_config = ETH_PHY_DEFAULT_CONFIG();
phy_config.phy_addr = CONFIG_EXAMPLE_ETH_PHY_ADDR;
phy_config.reset_gpio_num = CONFIG_EXAMPLE_ETH_PHY_RST_GPIO;
#if CONFIG_EXAMPLE_USE_INTERNAL_ETHERNET
eth_esp32_emac_config_t esp32_emac_config = ETH_ESP32_EMAC_DEFAULT_CONFIG();
esp32_emac_config.smi_gpio.mdc_num = CONFIG_EXAMPLE_ETH_MDC_GPIO;
esp32_emac_config.smi_gpio.mdio_num = CONFIG_EXAMPLE_ETH_MDIO_GPIO;
s_mac = esp_eth_mac_new_esp32(&esp32_emac_config, &mac_config);
#if CONFIG_EXAMPLE_ETH_PHY_GENERIC
s_phy = esp_eth_phy_new_generic(&phy_config);
#elif CONFIG_EXAMPLE_ETH_PHY_IP101
s_phy = esp_eth_phy_new_ip101(&phy_config);
#elif CONFIG_EXAMPLE_ETH_PHY_RTL8201
s_phy = esp_eth_phy_new_rtl8201(&phy_config);
#elif CONFIG_EXAMPLE_ETH_PHY_LAN87XX
s_phy = esp_eth_phy_new_lan87xx(&phy_config);
#elif CONFIG_EXAMPLE_ETH_PHY_DP83848
s_phy = esp_eth_phy_new_dp83848(&phy_config);
#elif CONFIG_EXAMPLE_ETH_PHY_KSZ80XX
s_phy = esp_eth_phy_new_ksz80xx(&phy_config);
#endif
#elif CONFIG_EXAMPLE_USE_SPI_ETHERNET
gpio_install_isr_service(0);
spi_bus_config_t buscfg = {
.miso_io_num = CONFIG_EXAMPLE_ETH_SPI_MISO_GPIO,
.mosi_io_num = CONFIG_EXAMPLE_ETH_SPI_MOSI_GPIO,
.sclk_io_num = CONFIG_EXAMPLE_ETH_SPI_SCLK_GPIO,
.quadwp_io_num = -1,
.quadhd_io_num = -1,
};
ESP_ERROR_CHECK(spi_bus_initialize(CONFIG_EXAMPLE_ETH_SPI_HOST, &buscfg, SPI_DMA_CH_AUTO));
spi_device_interface_config_t spi_devcfg = {
.mode = 0,
.clock_speed_hz = CONFIG_EXAMPLE_ETH_SPI_CLOCK_MHZ * 1000 * 1000,
.spics_io_num = CONFIG_EXAMPLE_ETH_SPI_CS_GPIO,
.queue_size = 20
};
#if CONFIG_EXAMPLE_USE_DM9051
/* dm9051 ethernet driver is based on spi driver */
eth_dm9051_config_t dm9051_config = ETH_DM9051_DEFAULT_CONFIG(CONFIG_EXAMPLE_ETH_SPI_HOST, &spi_devcfg);
dm9051_config.int_gpio_num = CONFIG_EXAMPLE_ETH_SPI_INT_GPIO;
s_mac = esp_eth_mac_new_dm9051(&dm9051_config, &mac_config);
s_phy = esp_eth_phy_new_dm9051(&phy_config);
#elif CONFIG_EXAMPLE_USE_W5500
/* w5500 ethernet driver is based on spi driver */
eth_w5500_config_t w5500_config = ETH_W5500_DEFAULT_CONFIG(CONFIG_EXAMPLE_ETH_SPI_HOST, &spi_devcfg);
w5500_config.int_gpio_num = CONFIG_EXAMPLE_ETH_SPI_INT_GPIO;
s_mac = esp_eth_mac_new_w5500(&w5500_config, &mac_config);
s_phy = esp_eth_phy_new_w5500(&phy_config);
#endif
#elif CONFIG_EXAMPLE_USE_OPENETH
phy_config.autonego_timeout_ms = 100;
s_mac = esp_eth_mac_new_openeth(&mac_config);
s_phy = esp_eth_phy_new_dp83848(&phy_config);
#endif
// Install Ethernet driver
esp_eth_config_t config = ETH_DEFAULT_CONFIG(s_mac, s_phy);
ESP_ERROR_CHECK(esp_eth_driver_install(&config, &s_eth_handle));
#if !CONFIG_EXAMPLE_USE_INTERNAL_ETHERNET
/* The SPI Ethernet module might doesn't have a burned factory MAC address, we cat to set it manually.
We set the ESP_MAC_ETH mac address as the default, if you want to use ESP_MAC_EFUSE_CUSTOM mac address, please enable the
configuration: `ESP_MAC_USE_CUSTOM_MAC_AS_BASE_MAC`
*/
uint8_t eth_mac[6] = {0};
ESP_ERROR_CHECK(esp_read_mac(eth_mac, ESP_MAC_ETH));
ESP_ERROR_CHECK(esp_eth_ioctl(s_eth_handle, ETH_CMD_S_MAC_ADDR, eth_mac));
#endif
// combine driver with netif
s_eth_glue = esp_eth_new_netif_glue(s_eth_handle);
esp_netif_attach(netif, s_eth_glue);
// Register user defined event handers
ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_ETH_GOT_IP, ð_on_got_ip, NULL));
#ifdef CONFIG_EXAMPLE_CONNECT_IPV6
ESP_ERROR_CHECK(esp_event_handler_register(ETH_EVENT, ETHERNET_EVENT_CONNECTED, &on_eth_event, netif));
ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_GOT_IP6, ð_on_got_ipv6, NULL));
#endif
esp_eth_start(s_eth_handle);
return netif;
}
static void eth_stop(void)
{
esp_netif_t *eth_netif = get_example_netif_from_desc(EXAMPLE_NETIF_DESC_ETH);
ESP_ERROR_CHECK(esp_event_handler_unregister(IP_EVENT, IP_EVENT_ETH_GOT_IP, ð_on_got_ip));
#if CONFIG_EXAMPLE_CONNECT_IPV6
ESP_ERROR_CHECK(esp_event_handler_unregister(IP_EVENT, IP_EVENT_GOT_IP6, ð_on_got_ipv6));
ESP_ERROR_CHECK(esp_event_handler_unregister(ETH_EVENT, ETHERNET_EVENT_CONNECTED, &on_eth_event));
#endif
ESP_ERROR_CHECK(esp_eth_stop(s_eth_handle));
ESP_ERROR_CHECK(esp_eth_del_netif_glue(s_eth_glue));
ESP_ERROR_CHECK(esp_eth_driver_uninstall(s_eth_handle));
s_eth_handle = NULL;
ESP_ERROR_CHECK(s_phy->del(s_phy));
ESP_ERROR_CHECK(s_mac->del(s_mac));
esp_netif_destroy(eth_netif);
}
esp_eth_handle_t get_example_eth_handle(void)
{
return s_eth_handle;
}
/* tear down connection, release resources */
void example_ethernet_shutdown(void)
{
if (s_semph_get_ip_addrs == NULL) {
return;
}
vSemaphoreDelete(s_semph_get_ip_addrs);
s_semph_get_ip_addrs = NULL;
#if CONFIG_EXAMPLE_CONNECT_IPV6
vSemaphoreDelete(s_semph_get_ip6_addrs);
s_semph_get_ip6_addrs = NULL;
#endif
eth_stop();
}
esp_err_t example_ethernet_connect(void)
{
#if CONFIG_EXAMPLE_CONNECT_IPV4
s_semph_get_ip_addrs = xSemaphoreCreateBinary();
if (s_semph_get_ip_addrs == NULL) {
return ESP_ERR_NO_MEM;
}
#endif
#if CONFIG_EXAMPLE_CONNECT_IPV6
s_semph_get_ip6_addrs = xSemaphoreCreateBinary();
if (s_semph_get_ip6_addrs == NULL) {
vSemaphoreDelete(s_semph_get_ip_addrs);
return ESP_ERR_NO_MEM;
}
#endif
eth_start();
ESP_LOGI(TAG, "Waiting for IP(s).");
#if CONFIG_EXAMPLE_CONNECT_IPV4
xSemaphoreTake(s_semph_get_ip_addrs, portMAX_DELAY);
#endif
#if CONFIG_EXAMPLE_CONNECT_IPV6
xSemaphoreTake(s_semph_get_ip6_addrs, portMAX_DELAY);
#endif
return ESP_OK;
}
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