mirror of
https://github.com/espressif/esp-idf.git
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336 lines
14 KiB
C
336 lines
14 KiB
C
/*
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* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Unlicense OR CC0-1.0
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*/
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#include <stdio.h>
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#include <string.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "esp_netif.h"
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#include "esp_netif_br_glue.h"
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#include "esp_eth.h"
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#include "esp_event.h"
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#include "esp_log.h"
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#include "driver/gpio.h"
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#include "sdkconfig.h"
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#if CONFIG_ETH_USE_SPI_ETHERNET
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#include "driver/spi_master.h"
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#endif // CONFIG_ETH_USE_SPI_ETHERNET
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static const char *TAG = "eth_bridge_example";
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#if CONFIG_EXAMPLE_SPI_ETHERNETS_NUM
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#define SPI_ETHERNETS_NUM CONFIG_EXAMPLE_SPI_ETHERNETS_NUM
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#else
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#define SPI_ETHERNETS_NUM 0
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#endif
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#if CONFIG_EXAMPLE_USE_INTERNAL_ETHERNET
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#define INTERNAL_ETHERNETS_NUM 1
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#else
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#define INTERNAL_ETHERNETS_NUM 0
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#endif
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#if CONFIG_EXAMPLE_USE_SPI_ETHERNET
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#define INIT_SPI_ETH_MODULE_CONFIG(eth_module_config, num) \
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do { \
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eth_module_config[num].spi_cs_gpio = CONFIG_EXAMPLE_ETH_SPI_CS ##num## _GPIO; \
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eth_module_config[num].int_gpio = CONFIG_EXAMPLE_ETH_SPI_INT ##num## _GPIO; \
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eth_module_config[num].phy_reset_gpio = CONFIG_EXAMPLE_ETH_SPI_PHY_RST ##num## _GPIO; \
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eth_module_config[num].phy_addr = CONFIG_EXAMPLE_ETH_SPI_PHY_ADDR ##num; \
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} while(0)
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typedef struct {
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uint8_t spi_cs_gpio;
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uint8_t int_gpio;
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int8_t phy_reset_gpio;
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uint8_t phy_addr;
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}spi_eth_module_config_t;
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#endif
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/** Event handler for Ethernet events */
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static void eth_event_handler(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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uint8_t mac_addr[6] = {0};
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/* we can get the ethernet driver handle from event data */
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esp_eth_handle_t eth_handle = *(esp_eth_handle_t *)event_data;
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switch (event_id) {
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case ETHERNET_EVENT_CONNECTED:
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esp_eth_ioctl(eth_handle, ETH_CMD_G_MAC_ADDR, mac_addr);
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ESP_LOGI(TAG, "Ethernet (%p) Link Up", eth_handle);
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ESP_LOGI(TAG, "Ethernet HW Addr %02x:%02x:%02x:%02x:%02x:%02x",
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mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4], mac_addr[5]);
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break;
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case ETHERNET_EVENT_DISCONNECTED:
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ESP_LOGI(TAG, "Ethernet (%p) Link Down", eth_handle);
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break;
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case ETHERNET_EVENT_START:
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ESP_LOGI(TAG, "Ethernet (%p) Started", eth_handle);
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break;
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case ETHERNET_EVENT_STOP:
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ESP_LOGI(TAG, "Ethernet (%p) Stopped", eth_handle);
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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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/** Event handler for IP_EVENT_ETH_GOT_IP */
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static void got_ip_event_handler(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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const esp_netif_ip_info_t *ip_info = &event->ip_info;
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ESP_LOGI(TAG, "Ethernet Got IP Address");
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ESP_LOGI(TAG, "~~~~~~~~~~~");
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ESP_LOGI(TAG, "ETHIP:" IPSTR, IP2STR(&ip_info->ip));
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ESP_LOGI(TAG, "ETHMASK:" IPSTR, IP2STR(&ip_info->netmask));
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ESP_LOGI(TAG, "ETHGW:" IPSTR, IP2STR(&ip_info->gw));
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ESP_LOGI(TAG, "~~~~~~~~~~~");
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}
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#if CONFIG_EXAMPLE_USE_INTERNAL_ETHERNET
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/** Internal EMAC initialization */
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esp_eth_handle_t eth_init_internal(void)
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{
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esp_eth_handle_t eth_handle;
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// Init MAC and PHY configs to default
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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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phy_config.phy_addr = CONFIG_EXAMPLE_ETH_PHY_ADDR;
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phy_config.reset_gpio_num = CONFIG_EXAMPLE_ETH_PHY_RST_GPIO;
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eth_esp32_emac_config_t esp32_emac_config = ETH_ESP32_EMAC_DEFAULT_CONFIG();
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esp32_emac_config.smi_mdc_gpio_num = CONFIG_EXAMPLE_ETH_MDC_GPIO;
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esp32_emac_config.smi_mdio_gpio_num = CONFIG_EXAMPLE_ETH_MDIO_GPIO;
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esp_eth_mac_t *mac = esp_eth_mac_new_esp32(&esp32_emac_config, &mac_config);
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#if CONFIG_EXAMPLE_ETH_PHY_IP101
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esp_eth_phy_t *phy = esp_eth_phy_new_ip101(&phy_config);
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#elif CONFIG_EXAMPLE_ETH_PHY_RTL8201
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esp_eth_phy_t *phy = esp_eth_phy_new_rtl8201(&phy_config);
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#elif CONFIG_EXAMPLE_ETH_PHY_LAN87XX
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esp_eth_phy_t *phy = esp_eth_phy_new_lan87xx(&phy_config);
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#elif CONFIG_EXAMPLE_ETH_PHY_DP83848
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esp_eth_phy_t *phy = esp_eth_phy_new_dp83848(&phy_config);
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#elif CONFIG_EXAMPLE_ETH_PHY_KSZ80XX
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esp_eth_phy_t *phy = esp_eth_phy_new_ksz80xx(&phy_config);
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#endif
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esp_eth_config_t config = ETH_DEFAULT_CONFIG(mac, phy);
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ESP_ERROR_CHECK(esp_eth_driver_install(&config, ð_handle));
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return eth_handle;
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}
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#endif // CONFIG_EXAMPLE_USE_INTERNAL_ETHERNET
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#if CONFIG_EXAMPLE_USE_SPI_ETHERNET
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/** Ethernet SPI modules initialization */
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esp_eth_handle_t eth_init_spi(spi_eth_module_config_t *spi_eth_module_config, uint8_t *mac_addr)
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{
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esp_eth_handle_t eth_handle;
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// Init MAC and PHY configs to default
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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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// Configure SPI interface and Ethernet driver for specific SPI module
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esp_eth_mac_t *mac;
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esp_eth_phy_t *phy;
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spi_device_handle_t spi_handle;
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#if CONFIG_EXAMPLE_USE_KSZ8851SNL
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spi_device_interface_config_t devcfg = {
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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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.queue_size = 20
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};
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// Set SPI module Chip Select GPIO
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devcfg.spics_io_num = spi_eth_module_config->spi_cs_gpio;
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ESP_ERROR_CHECK(spi_bus_add_device(CONFIG_EXAMPLE_ETH_SPI_HOST, &devcfg, &spi_handle));
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// KSZ8851SNL ethernet driver is based on spi driver
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eth_ksz8851snl_config_t ksz8851snl_config = ETH_KSZ8851SNL_DEFAULT_CONFIG(spi_handle);
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// Set remaining GPIO numbers and configuration used by the SPI module
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ksz8851snl_config.int_gpio_num = spi_eth_module_config->int_gpio;
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phy_config.phy_addr = spi_eth_module_config->phy_addr;
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phy_config.reset_gpio_num = spi_eth_module_config->phy_reset_gpio;
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mac = esp_eth_mac_new_ksz8851snl(&ksz8851snl_config, &mac_config);
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phy = esp_eth_phy_new_ksz8851snl(&phy_config);
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#elif CONFIG_EXAMPLE_USE_DM9051
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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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.queue_size = 20
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};
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// Set SPI module Chip Select GPIO
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devcfg.spics_io_num = spi_eth_module_config->spi_cs_gpio;
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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
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eth_dm9051_config_t dm9051_config = ETH_DM9051_DEFAULT_CONFIG(spi_handle);
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// Set remaining GPIO numbers and configuration used by the SPI module
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dm9051_config.int_gpio_num = spi_eth_module_config->int_gpio;
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phy_config.phy_addr = spi_eth_module_config->phy_addr;
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phy_config.reset_gpio_num = spi_eth_module_config->phy_reset_gpio;
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mac = esp_eth_mac_new_dm9051(&dm9051_config, &mac_config);
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phy = esp_eth_phy_new_dm9051(&phy_config);
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#elif CONFIG_EXAMPLE_USE_W5500
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spi_device_interface_config_t devcfg = {
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.command_bits = 16, // Actually it's the address phase in W5500 SPI frame
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.address_bits = 8, // Actually it's the control phase in W5500 SPI frame
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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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.queue_size = 20
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};
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// Set SPI module Chip Select GPIO
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devcfg.spics_io_num = spi_eth_module_config->spi_cs_gpio;
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ESP_ERROR_CHECK(spi_bus_add_device(CONFIG_EXAMPLE_ETH_SPI_HOST, &devcfg, &spi_handle));
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// w5500 ethernet driver is based on spi driver
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eth_w5500_config_t w5500_config = ETH_W5500_DEFAULT_CONFIG(spi_handle);
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// Set remaining GPIO numbers and configuration used by the SPI module
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w5500_config.int_gpio_num = spi_eth_module_config->int_gpio;
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phy_config.phy_addr = spi_eth_module_config->phy_addr;
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phy_config.reset_gpio_num = spi_eth_module_config->phy_reset_gpio;
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mac = esp_eth_mac_new_w5500(&w5500_config, &mac_config);
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phy = esp_eth_phy_new_w5500(&phy_config);
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#endif //CONFIG_EXAMPLE_USE_W5500
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esp_eth_config_t eth_config_spi = ETH_DEFAULT_CONFIG(mac, phy);
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ESP_ERROR_CHECK(esp_eth_driver_install(ð_config_spi, ð_handle));
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// The SPI Ethernet module might not have a burned factory MAC address, we cat to set it manually.
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ESP_ERROR_CHECK(esp_eth_ioctl(eth_handle, ETH_CMD_S_MAC_ADDR, mac_addr));
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return eth_handle;
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}
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#endif // CONFIG_EXAMPLE_USE_SPI_ETHERNET
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void app_main(void)
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{
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// number of Ethernet ports to be used in the bridge
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uint8_t port_cnt = 0;
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// the same MAC address will be used for all Ethernet ports since the bridge acts as one device
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uint8_t common_mac_addr[ETH_ADDR_LEN];
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esp_eth_handle_t eth_handles[SPI_ETHERNETS_NUM + INTERNAL_ETHERNETS_NUM] = { NULL };
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esp_netif_t *eth_netifs[SPI_ETHERNETS_NUM + INTERNAL_ETHERNETS_NUM] = { NULL };
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// Initialize TCP/IP network interface (should be called only once in application)
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ESP_ERROR_CHECK(esp_netif_init());
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// Create default event loop that running in background
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ESP_ERROR_CHECK(esp_event_loop_create_default());
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#if CONFIG_EXAMPLE_USE_INTERNAL_ETHERNET
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eth_handles[port_cnt++] = eth_init_internal();
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// use burned ESP32 MAC address as commom address for all Ethernet interfaces
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ESP_ERROR_CHECK(esp_eth_ioctl(eth_handles[0], ETH_CMD_G_MAC_ADDR, common_mac_addr));
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#elif CONFIG_EXAMPLE_USE_SPI_ETHERNET
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// if ESP32 internal Ethernet is not used, use manually configured MAC address
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// 02:00:00 is a Locally Administered OUI range so should not be used except when testing on a LAN under your control.
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memcpy(common_mac_addr, (uint8_t[]) {0x02, 0x00, 0x00, 0x12, 0x34, 0x56}, ETH_ADDR_LEN);
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#endif //CONFIG_EXAMPLE_USE_INTERNAL_ETHERNET
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#if CONFIG_EXAMPLE_USE_SPI_ETHERNET
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// Install GPIO ISR handler to be able to service SPI Eth modlues interrupts
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gpio_install_isr_service(0);
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// Init SPI bus
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spi_bus_config_t buscfg = {
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.miso_io_num = CONFIG_EXAMPLE_ETH_SPI_MISO_GPIO,
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.mosi_io_num = CONFIG_EXAMPLE_ETH_SPI_MOSI_GPIO,
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.sclk_io_num = CONFIG_EXAMPLE_ETH_SPI_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, SPI_DMA_CH_AUTO));
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// Init specific SPI Ethernet module configuration from Kconfig (CS GPIO, Interrupt GPIO, etc.)
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spi_eth_module_config_t spi_eth_module_config[CONFIG_EXAMPLE_SPI_ETHERNETS_NUM];
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INIT_SPI_ETH_MODULE_CONFIG(spi_eth_module_config, 0);
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#if CONFIG_EXAMPLE_SPI_ETHERNETS_NUM > 1
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INIT_SPI_ETH_MODULE_CONFIG(spi_eth_module_config, 1);
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#endif
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for (int i = 0; i < CONFIG_EXAMPLE_SPI_ETHERNETS_NUM; i++) {
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eth_handles[port_cnt++] = eth_init_spi(&spi_eth_module_config[i], common_mac_addr);
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}
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#endif // CONFIG_ETH_USE_SPI_ETHERNET
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// Create instances of esp-netif for Ethernet ports
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esp_netif_inherent_config_t esp_netif_config = ESP_NETIF_INHERENT_DEFAULT_ETH();
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esp_netif_config_t netif_cfg = {
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.base = &esp_netif_config,
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.stack = ESP_NETIF_NETSTACK_DEFAULT_ETH
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};
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char if_key_str[10];
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char if_desc_str[10];
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char num_str[3];
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for (int i = 0; i < port_cnt; i++) {
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itoa(i, num_str, 10);
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strcat(strcpy(if_key_str, "ETH_"), num_str);
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strcat(strcpy(if_desc_str, "eth"), num_str);
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esp_netif_config.if_key = if_key_str;
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esp_netif_config.if_desc = if_desc_str;
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esp_netif_config.route_prio = 50 - i;
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esp_netif_config.flags = 0; // ESP-NETIF flags need to be zero when port's to be bridged
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eth_netifs[i] = esp_netif_new(&netif_cfg);
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// attach Ethernet driver to TCP/IP stack
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ESP_ERROR_CHECK(esp_netif_attach(eth_netifs[i], esp_eth_new_netif_glue(eth_handles[i])));
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}
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// Create instance of esp-netif for bridge interface
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esp_netif_inherent_config_t esp_netif_br_config = ESP_NETIF_INHERENT_DEFAULT_BR();
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esp_netif_config_t netif_br_cfg = {
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.base = &esp_netif_br_config,
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.stack = ESP_NETIF_NETSTACK_DEFAULT_BR,
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};
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// Bridge configuration
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bridgeif_config_t bridgeif_config = {
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.max_fdb_dyn_entries = 10, // maximum number of address entries in dynamic forwarding database
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.max_fdb_sta_entries = 2, // maximum number of address entries in static forwarding database
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.max_ports = port_cnt // maximum number of ports the bridge can consist of
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};
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esp_netif_br_config.bridge_info = &bridgeif_config;
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// Set MAC address of bridge interface the same as the Ethernet interface
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memcpy(esp_netif_br_config.mac, common_mac_addr, ETH_ADDR_LEN);
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esp_netif_t *br_netif = esp_netif_new(&netif_br_cfg);
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// Create new esp netif bridge glue instance
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esp_netif_br_glue_handle_t netif_br_glue = esp_netif_br_glue_new();
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// Add Ethernet port interfaces to that esp netif bridge glue instance
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for (int i = 0; i < port_cnt; i++) {
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ESP_ERROR_CHECK(esp_netif_br_glue_add_port(netif_br_glue, eth_netifs[i]));
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}
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// Attach esp netif bridge glue instance with added ports to bridge netif
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ESP_ERROR_CHECK(esp_netif_attach(br_netif, netif_br_glue));
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// Register user defined event handers
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ESP_ERROR_CHECK(esp_event_handler_register(ETH_EVENT, ESP_EVENT_ANY_ID, ð_event_handler, NULL));
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ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_ETH_GOT_IP, &got_ip_event_handler, NULL));
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for (int i = 0; i < port_cnt; i++) {
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// Since the MAC forwarding is performed in lwIP bridge, we need to pass all addresses through the Ethernet MACs
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bool promiscuous = true;
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esp_eth_ioctl(eth_handles[i], ETH_CMD_S_PROMISCUOUS, &promiscuous);
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// Start Ethernet driver state machine
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ESP_ERROR_CHECK(esp_eth_start(eth_handles[i]));
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}
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}
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