mirror of
https://github.com/espressif/esp-idf.git
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295 lines
12 KiB
C
295 lines
12 KiB
C
/*
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* SPDX-FileCopyrightText: 2022-2023 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 "ethernet_init.h"
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#include "esp_log.h"
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#include "esp_check.h"
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#include "esp_mac.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 = "example_eth_init";
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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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#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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uint8_t *mac_addr;
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}spi_eth_module_config_t;
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#if CONFIG_EXAMPLE_USE_INTERNAL_ETHERNET
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/**
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* @brief Internal ESP32 Ethernet initialization
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*
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* @param[out] mac_out optionally returns Ethernet MAC object
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* @param[out] phy_out optionally returns Ethernet PHY object
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* @return
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* - esp_eth_handle_t if init succeeded
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* - NULL if init failed
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*/
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static esp_eth_handle_t eth_init_internal(esp_eth_mac_t **mac_out, esp_eth_phy_t **phy_out)
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{
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esp_eth_handle_t ret = NULL;
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// Init common 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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// Update PHY config based on board specific configuration
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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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// Init vendor specific MAC config to default
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eth_esp32_emac_config_t esp32_emac_config = ETH_ESP32_EMAC_DEFAULT_CONFIG();
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// Update vendor specific MAC config based on board configuration
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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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#if CONFIG_EXAMPLE_USE_SPI_ETHERNET
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// The DMA is shared resource between EMAC and the SPI. Therefore, adjust
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// EMAC DMA burst length when SPI Ethernet is used along with EMAC.
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esp32_emac_config.dma_burst_len = ETH_DMA_BURST_LEN_4;
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#endif // CONFIG_EXAMPLE_USE_SPI_ETHERNET
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// Create new ESP32 Ethernet MAC instance
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esp_eth_mac_t *mac = esp_eth_mac_new_esp32(&esp32_emac_config, &mac_config);
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// Create new PHY instance based on board configuration
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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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// Init Ethernet driver to default and install it
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esp_eth_handle_t eth_handle = NULL;
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esp_eth_config_t config = ETH_DEFAULT_CONFIG(mac, phy);
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ESP_GOTO_ON_FALSE(esp_eth_driver_install(&config, ð_handle) == ESP_OK, NULL,
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err, TAG, "Ethernet driver install failed");
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if (mac_out != NULL) {
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*mac_out = mac;
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}
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if (phy_out != NULL) {
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*phy_out = phy;
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}
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return eth_handle;
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err:
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if (eth_handle != NULL) {
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esp_eth_driver_uninstall(eth_handle);
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}
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if (mac != NULL) {
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mac->del(mac);
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}
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if (phy != NULL) {
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phy->del(phy);
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}
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return ret;
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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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/**
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* @brief SPI bus initialization (to be used by Ethernet SPI modules)
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*
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* @return
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* - ESP_OK on success
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*/
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static esp_err_t spi_bus_init(void)
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{
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esp_err_t ret = ESP_OK;
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// Install GPIO ISR handler to be able to service SPI Eth modules interrupts
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ret = gpio_install_isr_service(0);
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if (ret != ESP_OK) {
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if (ret == ESP_ERR_INVALID_STATE) {
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ESP_LOGW(TAG, "GPIO ISR handler has been already installed");
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ret = ESP_OK; // ISR handler has been already installed so no issues
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} else {
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ESP_LOGE(TAG, "GPIO ISR handler install failed");
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goto err;
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}
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}
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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_GOTO_ON_ERROR(spi_bus_initialize(CONFIG_EXAMPLE_ETH_SPI_HOST, &buscfg, SPI_DMA_CH_AUTO),
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err, TAG, "SPI host #%d init failed", CONFIG_EXAMPLE_ETH_SPI_HOST);
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err:
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return ret;
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}
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/**
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* @brief Ethernet SPI modules initialization
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*
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* @param[in] spi_eth_module_config specific SPI Ethernet module configuration
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* @param[out] mac_out optionally returns Ethernet MAC object
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* @param[out] phy_out optionally returns Ethernet PHY object
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* @return
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* - esp_eth_handle_t if init succeeded
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* - NULL if init failed
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*/
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static esp_eth_handle_t eth_init_spi(spi_eth_module_config_t *spi_eth_module_config, esp_eth_mac_t **mac_out, esp_eth_phy_t **phy_out)
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{
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esp_eth_handle_t ret = NULL;
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// Init common 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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// Update PHY config based on board specific configuration
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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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// Configure SPI interface for specific SPI module
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spi_device_interface_config_t spi_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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.spics_io_num = spi_eth_module_config->spi_cs_gpio
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};
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// Init vendor specific MAC config to default, and create new SPI Ethernet MAC instance
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// and new PHY instance based on board configuration
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#if CONFIG_EXAMPLE_USE_KSZ8851SNL
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eth_ksz8851snl_config_t ksz8851snl_config = ETH_KSZ8851SNL_DEFAULT_CONFIG(CONFIG_EXAMPLE_ETH_SPI_HOST, &spi_devcfg);
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ksz8851snl_config.int_gpio_num = spi_eth_module_config->int_gpio;
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esp_eth_mac_t *mac = esp_eth_mac_new_ksz8851snl(&ksz8851snl_config, &mac_config);
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esp_eth_phy_t *phy = esp_eth_phy_new_ksz8851snl(&phy_config);
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#elif CONFIG_EXAMPLE_USE_DM9051
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eth_dm9051_config_t dm9051_config = ETH_DM9051_DEFAULT_CONFIG(CONFIG_EXAMPLE_ETH_SPI_HOST, &spi_devcfg);
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dm9051_config.int_gpio_num = spi_eth_module_config->int_gpio;
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esp_eth_mac_t *mac = esp_eth_mac_new_dm9051(&dm9051_config, &mac_config);
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esp_eth_phy_t *phy = esp_eth_phy_new_dm9051(&phy_config);
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#elif CONFIG_EXAMPLE_USE_W5500
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eth_w5500_config_t w5500_config = ETH_W5500_DEFAULT_CONFIG(CONFIG_EXAMPLE_ETH_SPI_HOST, &spi_devcfg);
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w5500_config.int_gpio_num = spi_eth_module_config->int_gpio;
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esp_eth_mac_t *mac = esp_eth_mac_new_w5500(&w5500_config, &mac_config);
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esp_eth_phy_t *phy = esp_eth_phy_new_w5500(&phy_config);
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#endif //CONFIG_EXAMPLE_USE_W5500
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// Init Ethernet driver to default and install it
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esp_eth_handle_t eth_handle = NULL;
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esp_eth_config_t eth_config_spi = ETH_DEFAULT_CONFIG(mac, phy);
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ESP_GOTO_ON_FALSE(esp_eth_driver_install(ð_config_spi, ð_handle) == ESP_OK, NULL, err, TAG, "SPI Ethernet driver install failed");
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// The SPI Ethernet module might not have a burned factory MAC address, we can set it manually.
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if (spi_eth_module_config->mac_addr != NULL) {
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ESP_GOTO_ON_FALSE(esp_eth_ioctl(eth_handle, ETH_CMD_S_MAC_ADDR, spi_eth_module_config->mac_addr) == ESP_OK,
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NULL, err, TAG, "SPI Ethernet MAC address config failed");
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}
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if (mac_out != NULL) {
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*mac_out = mac;
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}
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if (phy_out != NULL) {
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*phy_out = phy;
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}
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return eth_handle;
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err:
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if (eth_handle != NULL) {
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esp_eth_driver_uninstall(eth_handle);
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}
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if (mac != NULL) {
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mac->del(mac);
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}
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if (phy != NULL) {
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phy->del(phy);
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}
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return ret;
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}
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#endif // CONFIG_EXAMPLE_USE_SPI_ETHERNET
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esp_err_t example_eth_init(esp_eth_handle_t *eth_handles_out[], uint8_t *eth_cnt_out)
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{
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esp_err_t ret = ESP_OK;
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esp_eth_handle_t *eth_handles = NULL;
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uint8_t eth_cnt = 0;
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#if CONFIG_EXAMPLE_USE_INTERNAL_ETHERNET || CONFIG_EXAMPLE_USE_SPI_ETHERNET
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ESP_GOTO_ON_FALSE(eth_handles_out != NULL && eth_cnt_out != NULL, ESP_ERR_INVALID_ARG,
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err, TAG, "invalid arguments: initialized handles array or number of interfaces");
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eth_handles = calloc(SPI_ETHERNETS_NUM + INTERNAL_ETHERNETS_NUM, sizeof(esp_eth_handle_t));
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ESP_GOTO_ON_FALSE(eth_handles != NULL, ESP_ERR_NO_MEM, err, TAG, "no memory");
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#if CONFIG_EXAMPLE_USE_INTERNAL_ETHERNET
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eth_handles[eth_cnt] = eth_init_internal(NULL, NULL);
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ESP_GOTO_ON_FALSE(eth_handles[eth_cnt], ESP_FAIL, err, TAG, "internal Ethernet init failed");
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eth_cnt++;
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#endif //CONFIG_EXAMPLE_USE_INTERNAL_ETHERNET
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#if CONFIG_EXAMPLE_USE_SPI_ETHERNET
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ESP_GOTO_ON_ERROR(spi_bus_init(), err, TAG, "SPI bus init failed");
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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] = { 0 };
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INIT_SPI_ETH_MODULE_CONFIG(spi_eth_module_config, 0);
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// The SPI Ethernet module(s) might not have a burned factory MAC address, hence use manually configured address(es).
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// In this example, Locally Administered MAC address derived from ESP32x base MAC address is used.
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// Note that Locally Administered OUI range should be used only when testing on a LAN under your control!
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uint8_t base_mac_addr[ETH_ADDR_LEN];
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ESP_GOTO_ON_ERROR(esp_efuse_mac_get_default(base_mac_addr), err, TAG, "get EFUSE MAC failed");
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uint8_t local_mac_1[ETH_ADDR_LEN];
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esp_derive_local_mac(local_mac_1, base_mac_addr);
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spi_eth_module_config[0].mac_addr = local_mac_1;
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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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uint8_t local_mac_2[ETH_ADDR_LEN];
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base_mac_addr[ETH_ADDR_LEN - 1] += 1;
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esp_derive_local_mac(local_mac_2, base_mac_addr);
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spi_eth_module_config[1].mac_addr = local_mac_2;
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#endif
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#if CONFIG_EXAMPLE_SPI_ETHERNETS_NUM > 2
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#error Maximum number of supported SPI Ethernet devices is currently limited to 2 by this example.
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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[eth_cnt] = eth_init_spi(&spi_eth_module_config[i], NULL, NULL);
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ESP_GOTO_ON_FALSE(eth_handles[eth_cnt], ESP_FAIL, err, TAG, "SPI Ethernet init failed");
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eth_cnt++;
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}
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#endif // CONFIG_ETH_USE_SPI_ETHERNET
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#else
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ESP_LOGD(TAG, "no Ethernet device selected to init");
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#endif // CONFIG_EXAMPLE_USE_INTERNAL_ETHERNET || CONFIG_EXAMPLE_USE_SPI_ETHERNET
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*eth_handles_out = eth_handles;
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*eth_cnt_out = eth_cnt;
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return ret;
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#if CONFIG_EXAMPLE_USE_INTERNAL_ETHERNET || CONFIG_EXAMPLE_USE_SPI_ETHERNET
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err:
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free(eth_handles);
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return ret;
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#endif
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}
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