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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,19 @@ | ||
| #pragma once | ||
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| #include <esp_netif.h> | ||
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| #include <Arduino.h> | ||
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| class W5500 { | ||
| public: | ||
| explicit W5500(int8_t pin_mosi, int8_t pin_miso, int8_t pin_sclk, int8_t pin_cs, int8_t pin_int, int8_t pin_rst); | ||
| W5500(const W5500&) = delete; | ||
| W5500 &operator=(const W5500&) = delete; | ||
| ~W5500(); | ||
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| String macAddress(); | ||
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| private: | ||
| esp_eth_handle_t eth_handle; | ||
| esp_netif_t *eth_netif; | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| #include "W5500.h" | ||
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| #include <driver/spi_master.h> | ||
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| // Internal Arduino functions from WiFiGeneric | ||
| void tcpipInit(); | ||
| void add_esp_interface_netif(esp_interface_t interface, esp_netif_t *esp_netif); | ||
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| W5500::W5500(int8_t pin_mosi, int8_t pin_miso, int8_t pin_sclk, int8_t pin_cs, int8_t pin_int, int8_t pin_rst) : | ||
| eth_handle(nullptr), | ||
| eth_netif(nullptr) | ||
| { | ||
| gpio_reset_pin(static_cast<gpio_num_t>(pin_rst)); | ||
| gpio_set_level(static_cast<gpio_num_t>(pin_rst), 0); | ||
| gpio_set_direction(static_cast<gpio_num_t>(pin_rst), GPIO_MODE_OUTPUT); | ||
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| gpio_reset_pin(static_cast<gpio_num_t>(pin_mosi)); | ||
| gpio_reset_pin(static_cast<gpio_num_t>(pin_miso)); | ||
| gpio_reset_pin(static_cast<gpio_num_t>(pin_sclk)); | ||
| gpio_reset_pin(static_cast<gpio_num_t>(pin_cs)); | ||
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| gpio_reset_pin(static_cast<gpio_num_t>(pin_int)); | ||
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| esp_err_t err = gpio_install_isr_service(ARDUINO_ISR_FLAG); | ||
| if (err != ESP_ERR_INVALID_STATE) // don't raise an error when ISR service is already installed | ||
| ESP_ERROR_CHECK(err); | ||
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| spi_bus_config_t bus_config { | ||
| .mosi_io_num = pin_mosi, | ||
| .miso_io_num = pin_miso, | ||
| .sclk_io_num = pin_sclk, | ||
| .quadwp_io_num = -1, | ||
| .quadhd_io_num = -1, | ||
| .data4_io_num = -1, | ||
| .data5_io_num = -1, | ||
| .data6_io_num = -1, | ||
| .data7_io_num = -1, | ||
| .max_transfer_sz = 0, // uses default value internally | ||
| .flags = 0, | ||
| .intr_flags = 0, | ||
| }; | ||
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| ESP_ERROR_CHECK(spi_bus_initialize(SPI3_HOST, &bus_config, SPI_DMA_CH_AUTO)); | ||
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| spi_device_interface_config_t device_config { | ||
| .command_bits = 16, // actually address phase | ||
| .address_bits = 8, // actually command phase | ||
| .dummy_bits = 0, | ||
| .mode = 0, | ||
| .duty_cycle_pos = 0, | ||
| .cs_ena_pretrans = 0, // only 0 supported | ||
| .cs_ena_posttrans = 0, // only 0 supported | ||
| .clock_speed_hz = 20000000, // stable with OpenDTU Fusion shield | ||
| .input_delay_ns = 0, | ||
| .spics_io_num = pin_cs, | ||
| .flags = 0, | ||
| .queue_size = 20, | ||
| .pre_cb = nullptr, | ||
| .post_cb = nullptr, | ||
| }; | ||
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| spi_device_handle_t spi; | ||
| ESP_ERROR_CHECK(spi_bus_add_device(SPI3_HOST, &device_config, &spi)); | ||
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| // Reset sequence | ||
| delayMicroseconds(500); | ||
| gpio_set_level(static_cast<gpio_num_t>(pin_rst), 1); | ||
| delayMicroseconds(1000); | ||
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| // Arduino function to start networking stack if not already started | ||
| tcpipInit(); | ||
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| ESP_ERROR_CHECK(tcpip_adapter_set_default_eth_handlers()); | ||
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| eth_w5500_config_t w5500_config = ETH_W5500_DEFAULT_CONFIG(spi); | ||
| w5500_config.int_gpio_num = pin_int; | ||
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| eth_mac_config_t mac_config = ETH_MAC_DEFAULT_CONFIG(); | ||
| mac_config.rx_task_stack_size = 4096; | ||
| esp_eth_mac_t *mac = esp_eth_mac_new_w5500(&w5500_config, &mac_config); | ||
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| eth_phy_config_t phy_config = ETH_PHY_DEFAULT_CONFIG(); | ||
| phy_config.reset_gpio_num = -1; | ||
| esp_eth_phy_t *phy = esp_eth_phy_new_w5500(&phy_config); | ||
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| esp_eth_config_t eth_config = ETH_DEFAULT_CONFIG(mac, phy); | ||
| ESP_ERROR_CHECK(esp_eth_driver_install(ð_config, ð_handle)); | ||
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| // Configure MAC address | ||
| uint8_t mac_addr[6]; | ||
| ESP_ERROR_CHECK(esp_read_mac(mac_addr, ESP_MAC_ETH)); | ||
| ESP_ERROR_CHECK(esp_eth_ioctl(eth_handle, ETH_CMD_S_MAC_ADDR, mac_addr)); | ||
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| esp_netif_config_t netif_config = ESP_NETIF_DEFAULT_ETH(); | ||
| eth_netif = esp_netif_new(&netif_config); | ||
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| ESP_ERROR_CHECK(esp_netif_attach(eth_netif, esp_eth_new_netif_glue(eth_handle))); | ||
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| // Add to Arduino | ||
| add_esp_interface_netif(ESP_IF_ETH, eth_netif); | ||
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| ESP_ERROR_CHECK(esp_eth_start(eth_handle)); | ||
| } | ||
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| W5500::~W5500() { | ||
| // TODO(LennartF22): support cleanup at some point? | ||
| } | ||
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| String W5500::macAddress() { | ||
| uint8_t mac_addr[6] = {}; | ||
| esp_eth_ioctl(eth_handle, ETH_CMD_G_MAC_ADDR, mac_addr); | ||
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| char mac_addr_str[18]; | ||
| snprintf( | ||
| mac_addr_str, sizeof(mac_addr_str), "%02X:%02X:%02X:%02X:%02X:%02X", | ||
| mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4], mac_addr[5] | ||
| ); | ||
| return String(mac_addr_str); | ||
| } |
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