knxdisplay/main/Hardware/Eth.cpp
2026-02-11 14:21:43 +01:00

144 lines
4.7 KiB
C++

#include "Eth.hpp"
#include "esp_log.h"
#include "esp_netif.h"
#include "esp_eth.h"
#include "ethernet_init.h"
#include "lwip/ip4_addr.h"
static const char* TAG = "Ethernet";
Eth& Eth::instance() {
static Eth instance;
return instance;
}
/** Event handler for Ethernet events */
void Eth::eventHandler(void *arg, esp_event_base_t event_base,
int32_t event_id, void *event_data)
{
uint8_t mac_addr[6] = {0};
/* we can get the ethernet driver handle from event data */
esp_eth_handle_t eth_handle = *(esp_eth_handle_t *)event_data;
switch (event_id) {
case ETHERNET_EVENT_CONNECTED:
esp_eth_ioctl(eth_handle, ETH_CMD_G_MAC_ADDR, mac_addr);
ESP_LOGI(TAG, "Ethernet Link Up");
ESP_LOGI(TAG, "Ethernet HW Addr %02x:%02x:%02x:%02x:%02x:%02x",
mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4], mac_addr[5]);
break;
case ETHERNET_EVENT_DISCONNECTED:
ESP_LOGI(TAG, "Ethernet Link Down");
break;
case ETHERNET_EVENT_START:
ESP_LOGI(TAG, "Ethernet Started");
break;
case ETHERNET_EVENT_STOP:
ESP_LOGI(TAG, "Ethernet Stopped");
break;
default:
break;
}
}
/** Event handler for IP_EVENT_ETH_GOT_IP */
void Eth::got_ip_event_handler(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;
const esp_netif_ip_info_t *ip_info = &event->ip_info;
ESP_LOGI(TAG, "Ethernet Got IP Address");
ESP_LOGI(TAG, "~~~~~~~~~~~");
ESP_LOGI(TAG, "ETHIP:" IPSTR, IP2STR(&ip_info->ip));
ESP_LOGI(TAG, "ETHMASK:" IPSTR, IP2STR(&ip_info->netmask));
ESP_LOGI(TAG, "ETHGW:" IPSTR, IP2STR(&ip_info->gw));
ESP_LOGI(TAG, "~~~~~~~~~~~");
}
void Eth::init() {
if (initialized_) {
return;
}
ESP_LOGI(TAG, "Initializing Ethernet");
ethEventGroup_ = xEventGroupCreate();
uint8_t eth_port_cnt = 0;
esp_eth_handle_t *eth_handles;
ESP_ERROR_CHECK(example_eth_init(&eth_handles, &eth_port_cnt));
// Initialize TCP/IP network interface aka the esp-netif (should be called only once in application)
ESP_ERROR_CHECK(esp_netif_init());
// Create default event loop that running in background
ESP_ERROR_CHECK(esp_event_loop_create_default());
esp_netif_t *eth_netifs[eth_port_cnt];
esp_eth_netif_glue_handle_t eth_netif_glues[eth_port_cnt];
// Create instance(s) of esp-netif for Ethernet(s)
if (eth_port_cnt == 1) {
// Use ESP_NETIF_DEFAULT_ETH when just one Ethernet interface is used and you don't need to modify
// default esp-netif configuration parameters.
esp_netif_config_t cfg = ESP_NETIF_DEFAULT_ETH();
eth_netifs[0] = esp_netif_new(&cfg);
netif_ = eth_netifs[0];
eth_netif_glues[0] = esp_eth_new_netif_glue(eth_handles[0]);
// Attach Ethernet driver to TCP/IP stack
ESP_ERROR_CHECK(esp_netif_attach(eth_netifs[0], eth_netif_glues[0]));
}
ESP_ERROR_CHECK(esp_event_handler_register(ETH_EVENT, ESP_EVENT_ANY_ID, &eventHandler, NULL));
ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_ETH_GOT_IP, &got_ip_event_handler, NULL));
// Start Ethernet driver state machine
for (int i = 0; i < eth_port_cnt; i++) {
ESP_ERROR_CHECK(esp_eth_start(eth_handles[i]));
}
initialized_ = true;
}
void Eth::applyStaticIp(const StaticIpConfig& cfg) {
if (!netif_) {
ESP_LOGW(TAG, "applyStaticIp: no netif");
return;
}
esp_netif_dhcpc_stop(netif_);
esp_netif_ip_info_t ip_info = {};
IP4_ADDR(&ip_info.ip, cfg.ip[0], cfg.ip[1], cfg.ip[2], cfg.ip[3]);
IP4_ADDR(&ip_info.netmask, cfg.subnet[0], cfg.subnet[1], cfg.subnet[2], cfg.subnet[3]);
IP4_ADDR(&ip_info.gw, cfg.gateway[0], cfg.gateway[1], cfg.gateway[2], cfg.gateway[3]);
esp_err_t err = esp_netif_set_ip_info(netif_, &ip_info);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to set static IP: %s", esp_err_to_name(err));
esp_netif_dhcpc_start(netif_);
return;
}
esp_netif_dns_info_t dns_info = {};
IP4_ADDR(&dns_info.ip.u_addr.ip4, cfg.dns[0], cfg.dns[1], cfg.dns[2], cfg.dns[3]);
dns_info.ip.type = ESP_IPADDR_TYPE_V4;
esp_netif_set_dns_info(netif_, ESP_NETIF_DNS_MAIN, &dns_info);
ESP_LOGI(TAG, "Static IP set: %d.%d.%d.%d", cfg.ip[0], cfg.ip[1], cfg.ip[2], cfg.ip[3]);
}
std::string Eth::getIPAddress() {
if (!netif_) return "";
esp_netif_ip_info_t ip_info;
if (esp_netif_get_ip_info(netif_, &ip_info) == ESP_OK) {
char buf[16];
snprintf(buf, sizeof(buf), IPSTR, IP2STR(&ip_info.ip));
return buf;
}
return "";
}