131 lines
5.1 KiB
C
131 lines
5.1 KiB
C
/* ENC28J60 Example
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This example code is in the Public Domain (or CC0 licensed, at your option.)
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Unless required by applicable law or agreed to in writing, this
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software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied.
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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_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 "enc28j60.h"
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#include "sdkconfig.h"
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static const char *TAG = "eth_example";
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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 Link Up");
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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 Link Down");
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break;
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case ETHERNET_EVENT_START:
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ESP_LOGI(TAG, "Ethernet Started");
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break;
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case ETHERNET_EVENT_STOP:
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ESP_LOGI(TAG, "Ethernet Stopped");
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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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void app_main(void)
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{
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ESP_ERROR_CHECK(gpio_install_isr_service(0));
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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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esp_netif_config_t netif_cfg = ESP_NETIF_DEFAULT_ETH();
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esp_netif_t *eth_netif = esp_netif_new(&netif_cfg);
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// Set default handlers to process TCP/IP stuffs
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ESP_ERROR_CHECK(esp_eth_set_default_handlers(eth_netif));
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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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spi_bus_config_t buscfg = {
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.miso_io_num = CONFIG_EXAMPLE_ENC28J60_MISO_GPIO,
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.mosi_io_num = CONFIG_EXAMPLE_ENC28J60_MOSI_GPIO,
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.sclk_io_num = CONFIG_EXAMPLE_ENC28J60_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_ENC28J60_SPI_HOST, &buscfg, 1));
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/* ENC28J60 ethernet driver is based on spi driver */
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spi_device_interface_config_t devcfg = {
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.command_bits = 3,
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.address_bits = 5,
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.mode = 0,
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.clock_speed_hz = CONFIG_EXAMPLE_ENC28J60_SPI_CLOCK_MHZ * 1000 * 1000,
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.spics_io_num = CONFIG_EXAMPLE_ENC28J60_CS_GPIO,
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.queue_size = 20
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};
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spi_device_handle_t spi_handle = NULL;
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ESP_ERROR_CHECK(spi_bus_add_device(CONFIG_EXAMPLE_ENC28J60_SPI_HOST, &devcfg, &spi_handle));
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eth_enc28j60_config_t enc28j60_config = ETH_ENC28J60_DEFAULT_CONFIG(spi_handle);
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enc28j60_config.int_gpio_num = CONFIG_EXAMPLE_ENC28J60_INT_GPIO;
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eth_mac_config_t mac_config = ETH_MAC_DEFAULT_CONFIG();
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mac_config.smi_mdc_gpio_num = -1; // ENC28J60 doesn't have SMI interface
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mac_config.smi_mdio_gpio_num = -1;
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esp_eth_mac_t *mac = esp_eth_mac_new_enc28j60(&enc28j60_config, &mac_config);
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eth_phy_config_t phy_config = ETH_PHY_DEFAULT_CONFIG();
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phy_config.autonego_timeout_ms = 0; // ENC28J60 doesn't support auto-negotiation
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phy_config.reset_gpio_num = -1; // ENC28J60 doesn't have a pin to reset internal PHY
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esp_eth_phy_t *phy = esp_eth_phy_new_enc28j60(&phy_config);
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esp_eth_config_t eth_config = ETH_DEFAULT_CONFIG(mac, phy);
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esp_eth_handle_t eth_handle = NULL;
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ESP_ERROR_CHECK(esp_eth_driver_install(ð_config, ð_handle));
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/* ENC28J60 doesn't burn any factory MAC address, we need to set it manually.
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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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*/
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mac->set_addr(mac, (uint8_t[]) {
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0x02, 0x00, 0x00, 0x12, 0x34, 0x56
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});
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/* attach Ethernet driver to TCP/IP stack */
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ESP_ERROR_CHECK(esp_netif_attach(eth_netif, esp_eth_new_netif_glue(eth_handle)));
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/* start Ethernet driver state machine */
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ESP_ERROR_CHECK(esp_eth_start(eth_handle));
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}
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