Add initial support for Ethernet and examples

libraries/WiFi/examples/ETH_LAN8720/ETH_LAN8720.ino

+/*
+    This sketch shows the Ethernet event usage
+
+*/
+
+#include <ETH.h>
+
+static bool eth_connected = false;
+
+void WiFiEvent(WiFiEvent_t event)
+{
+  switch (event) {
+    case SYSTEM_EVENT_ETH_START:
+      Serial.println("ETH Started");
+      //set eth hostname here
+      ETH.setHostname("esp32-ethernet");
+      break;
+    case SYSTEM_EVENT_ETH_CONNECTED:
+      Serial.println("ETH Connected");
+      break;
+    case SYSTEM_EVENT_ETH_GOT_IP:
+      Serial.print("ETH MAC: ");
+      Serial.print(ETH.macAddress());
+      Serial.print(", IPv4: ");
+      Serial.print(ETH.localIP());
+      if (ETH.fullDuplex()) {
+        Serial.print(", FULL_DUPLEX");
+      }
+      Serial.print(", ");
+      Serial.print(ETH.linkSpeed());
+      Serial.println("Mbps");
+      eth_connected = true;
+      break;
+    case SYSTEM_EVENT_ETH_DISCONNECTED:
+      Serial.println("ETH Disconnected");
+      eth_connected = false;
+      break;
+    case SYSTEM_EVENT_ETH_STOP:
+      Serial.println("ETH Stopped");
+      eth_connected = false;
+      break;
+    default:
+      break;
+  }
+}
+
+void testClient(const char * host, uint16_t port)
+{
+  Serial.print("\nconnecting to ");
+  Serial.println(host);
+
+  WiFiClient client;
+  if (!client.connect(host, port)) {
+    Serial.println("connection failed");
+    return;
+  }
+  client.printf("GET / HTTP/1.1\r\nHost: %s\r\n\r\n", host);
+  while (client.connected() && !client.available());
+  while (client.available()) {
+    Serial.write(client.read());
+  }
+
+  Serial.println("closing connection\n");
+  client.stop();
+}
+
+void setup()
+{
+  Serial.begin(115200);
+  WiFi.onEvent(WiFiEvent);
+  ETH.begin();
+}
+
+
+void loop()
+{
+  if (eth_connected) {
+    testClient("google.com", 80);
+  }
+  delay(10000);
+}

libraries/WiFi/examples/ETH_TLK110/ETH_TLK110.ino

+/*
+    This sketch shows the Ethernet event usage
+
+*/
+
+#include <ETH.h>
+
+#define ETH_ADDR        31
+#define ETH_POWER_PIN   17
+#define ETH_MDC_PIN     23
+#define ETH_MDIO_PIN    18
+#define ETH_TYPE        ETH_PHY_TLK110
+
+static bool eth_connected = false;
+
+void WiFiEvent(WiFiEvent_t event)
+{
+  switch (event) {
+    case SYSTEM_EVENT_ETH_START:
+      Serial.println("ETH Started");
+      //set eth hostname here
+      ETH.setHostname("esp32-ethernet");
+      break;
+    case SYSTEM_EVENT_ETH_CONNECTED:
+      Serial.println("ETH Connected");
+      break;
+    case SYSTEM_EVENT_ETH_GOT_IP:
+      Serial.print("ETH MAC: ");
+      Serial.print(ETH.macAddress());
+      Serial.print(", IPv4: ");
+      Serial.print(ETH.localIP());
+      if (ETH.fullDuplex()) {
+        Serial.print(", FULL_DUPLEX");
+      }
+      Serial.print(", ");
+      Serial.print(ETH.linkSpeed());
+      Serial.println("Mbps");
+      eth_connected = true;
+      break;
+    case SYSTEM_EVENT_ETH_DISCONNECTED:
+      Serial.println("ETH Disconnected");
+      eth_connected = false;
+      break;
+    case SYSTEM_EVENT_ETH_STOP:
+      Serial.println("ETH Stopped");
+      eth_connected = false;
+      break;
+    default:
+      break;
+  }
+}
+
+void testClient(const char * host, uint16_t port)
+{
+  Serial.print("\nconnecting to ");
+  Serial.println(host);
+
+  WiFiClient client;
+  if (!client.connect(host, port)) {
+    Serial.println("connection failed");
+    return;
+  }
+  client.printf("GET / HTTP/1.1\r\nHost: %s\r\n\r\n", host);
+  while (client.connected() && !client.available());
+  while (client.available()) {
+    Serial.write(client.read());
+  }
+
+  Serial.println("closing connection\n");
+  client.stop();
+}
+
+void setup()
+{
+  Serial.begin(115200);
+  WiFi.onEvent(WiFiEvent);
+  ETH.begin(ETH_ADDR, ETH_POWER_PIN, ETH_MDC_PIN, ETH_MDIO_PIN, ETH_TYPE);
+}
+
+
+void loop()
+{
+  if (eth_connected) {
+    testClient("google.com", 80);
+  }
+  delay(10000);
+}

libraries/WiFi/src/ETH.cpp

+/*
+ ETH.h - espre ETH PHY support.
+ Based on WiFi.h from Ardiono WiFi shield library.
+ Copyright (c) 2011-2014 Arduino.  All right reserved.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "ETH.h"
+#include "eth_phy/phy.h"
+#include "eth_phy/phy_tlk110.h"
+#include "eth_phy/phy_lan8720.h"
+#include "lwip/err.h"
+#include "lwip/dns.h"
+
+extern void tcpipInit();
+
+static int _eth_phy_mdc_pin = -1;
+static int _eth_phy_mdio_pin = -1;
+static int _eth_phy_power_pin = -1;
+static eth_phy_power_enable_func _eth_phy_power_enable_orig = NULL;
+
+static void _eth_phy_config_gpio(void)
+{
+    if(_eth_phy_mdc_pin < 0 || _eth_phy_mdio_pin < 0){
+        log_e("MDC and MDIO pins are not configured!");
+        return;
+    }
+    phy_rmii_configure_data_interface_pins();
+    phy_rmii_smi_configure_pins(_eth_phy_mdc_pin, _eth_phy_mdio_pin);
+}
+
+static void _eth_phy_power_enable(bool enable)
+{
+    pinMode(_eth_phy_power_pin, OUTPUT);
+    digitalWrite(_eth_phy_power_pin, enable);
+    delay(1);
+}
+
+ETHClass::ETHClass():initialized(false),started(false),staticIP(false)
+{
+}
+
+ETHClass::~ETHClass()
+{}
+
+bool ETHClass::begin(uint8_t phy_addr, int power, int mdc, int mdio, eth_phy_type_t type)
+{
+    esp_err_t err;
+    if(initialized){
+        err = esp_eth_enable();
+        if(err){
+            log_e("esp_eth_enable error: %d", err);
+            return false;
+        }
+        started = true;
+        return true;
+    }
+    _eth_phy_mdc_pin = mdc;
+    _eth_phy_mdio_pin = mdio;
+    _eth_phy_power_pin = power;
+
+    if(type == ETH_PHY_LAN8720){
+        eth_config_t config = phy_lan8720_default_ethernet_config;
+        memcpy(&eth_config, &config, sizeof(eth_config_t));
+    } else if(type == ETH_PHY_TLK110){
+        eth_config_t config = phy_tlk110_default_ethernet_config;
+        memcpy(&eth_config, &config, sizeof(eth_config_t));
+    } else {
+        log_e("Bad ETH_PHY type: %u", (uint8_t)type);
+        return false;
+    }
+
+    eth_config.phy_addr = (eth_phy_base_t)phy_addr;
+    eth_config.gpio_config = _eth_phy_config_gpio;
+    eth_config.tcpip_input = tcpip_adapter_eth_input;
+    if(_eth_phy_power_pin >= 0){
+        _eth_phy_power_enable_orig = eth_config.phy_power_enable;
+        eth_config.phy_power_enable = _eth_phy_power_enable;
+    }
+
+    tcpipInit();
+    err = esp_eth_init(&eth_config);
+    if(!err){
+        initialized = true;
+        err = esp_eth_enable();
+        if(err){
+            log_e("esp_eth_enable error: %d", err);
+        } else {
+            started = true;
+            return true;
+        }
+    } else {
+        log_e("esp_eth_init error: %d", err);
+    }
+    return false;
+}
+
+/*
+bool ETHClass::config(IPAddress local_ip, IPAddress gateway, IPAddress subnet, IPAddress dns1, IPAddress dns2)
+{
+    if(!initialized){
+        return false;
+    }
+
+    tcpip_adapter_ip_info_t info;
+    info.ip.addr = static_cast<uint32_t>(local_ip);
+    info.gw.addr = static_cast<uint32_t>(gateway);
+    info.netmask.addr = static_cast<uint32_t>(subnet);
+
+    if(!staticIP){
+        tcpip_adapter_dhcpc_stop(TCPIP_ADAPTER_IF_ETH);
+    }
+    if(tcpip_adapter_set_ip_info(TCPIP_ADAPTER_IF_ETH, &info) == ESP_OK) {
+        staticIP = true;
+    } else {
+        return false;
+    }
+    ip_addr_t d;
+
+    if(dns1 != (uint32_t)0x00000000) {
+        // Set DNS1-Server
+        d.u_addr.ip4.addr = static_cast<uint32_t>(dns1);
+        dns_setserver(0, &d);
+    }
+
+    if(dns2 != (uint32_t)0x00000000) {
+        // Set DNS2-Server
+        d.u_addr.ip4.addr = static_cast<uint32_t>(dns2);
+        dns_setserver(1, &d);
+    }
+
+    return true;
+}
+*/
+
+IPAddress ETHClass::localIP()
+{
+    tcpip_adapter_ip_info_t ip;
+    if(tcpip_adapter_get_ip_info(TCPIP_ADAPTER_IF_ETH, &ip)){
+        return IPAddress();
+    }
+    return IPAddress(ip.ip.addr);
+}
+
+IPAddress ETHClass::subnetMask()
+{
+    tcpip_adapter_ip_info_t ip;
+    if(tcpip_adapter_get_ip_info(TCPIP_ADAPTER_IF_ETH, &ip)){
+        return IPAddress();
+    }
+    return IPAddress(ip.netmask.addr);
+}
+
+IPAddress ETHClass::gatewayIP()
+{
+    tcpip_adapter_ip_info_t ip;
+    if(tcpip_adapter_get_ip_info(TCPIP_ADAPTER_IF_ETH, &ip)){
+        return IPAddress();
+    }
+    return IPAddress(ip.gw.addr);
+}
+
+IPAddress ETHClass::dnsIP(uint8_t dns_no)
+{
+    ip_addr_t dns_ip = dns_getserver(dns_no);
+    return IPAddress(dns_ip.u_addr.ip4.addr);
+}
+
+const char * ETHClass::getHostname()
+{
+    const char * hostname;
+    if(tcpip_adapter_get_hostname(TCPIP_ADAPTER_IF_ETH, &hostname)){
+        return NULL;
+    }
+    return hostname;
+}
+
+bool ETHClass::setHostname(const char * hostname)
+{
+    return tcpip_adapter_set_hostname(TCPIP_ADAPTER_IF_ETH, hostname) == 0;
+}
+
+bool ETHClass::fullDuplex()
+{
+    return eth_config.phy_get_duplex_mode();
+}
+
+bool ETHClass::linkUp()
+{
+    return eth_config.phy_check_link();
+}
+
+uint8_t ETHClass::linkSpeed()
+{
+    return eth_config.phy_get_speed_mode()?100:10;
+}
+
+bool ETHClass::enableIpV6()
+{
+    return tcpip_adapter_create_ip6_linklocal(TCPIP_ADAPTER_IF_ETH) == 0;
+}
+
+IPv6Address ETHClass::localIPv6()
+{
+    static ip6_addr_t addr;
+    if(tcpip_adapter_get_ip6_linklocal(TCPIP_ADAPTER_IF_ETH, &addr)){
+        return IPv6Address();
+    }
+    return IPv6Address(addr.addr);
+}
+
+uint8_t * macAddress(uint8_t* mac)
+{
+    if(!mac){
+        return NULL;
+    }
+    esp_eth_get_mac(mac);
+    return mac;
+}
+
+String ETHClass::macAddress(void)
+{
+    uint8_t mac[6];
+    char macStr[18] = { 0 };
+    esp_eth_get_mac(mac);
+    sprintf(macStr, "%02X:%02X:%02X:%02X:%02X:%02X", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+    return String(macStr);
+}
+
+ETHClass ETH;

libraries/WiFi/src/ETH.h

+/*
+ ETH.h - espre ETH PHY support.
+ Based on WiFi.h from Ardiono WiFi shield library.
+ Copyright (c) 2011-2014 Arduino.  All right reserved.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef _ETH_H_
+#define _ETH_H_
+
+#include "WiFi.h"
+#include "esp_eth.h"
+
+#ifndef ETH_PHY_ADDR
+#define ETH_PHY_ADDR 0
+#endif
+
+#ifndef ETH_PHY_TYPE
+#define ETH_PHY_TYPE ETH_PHY_LAN8720
+#endif
+
+#ifndef ETH_PHY_POWER
+#define ETH_PHY_POWER -1
+#endif
+
+#ifndef ETH_PHY_MDC
+#define ETH_PHY_MDC 23
+#endif
+
+#ifndef ETH_PHY_MDIO
+#define ETH_PHY_MDIO 18
+#endif
+
+typedef enum { ETH_PHY_LAN8720, ETH_PHY_TLK110, ETH_PHY_MAX} eth_phy_type_t;
+
+class ETHClass {
+    private:
+        bool initialized;
+        bool started;
+        bool staticIP;
+        eth_config_t eth_config;
+    public:
+        ETHClass();
+        ~ETHClass();
+
+        bool begin(uint8_t phy_addr=ETH_PHY_ADDR, int power=ETH_PHY_POWER, int mdc=ETH_PHY_MDC, int mdio=ETH_PHY_MDIO, eth_phy_type_t type=ETH_PHY_TYPE);
+
+        // NOT WORKING YET!
+        //bool config(IPAddress local_ip, IPAddress gateway, IPAddress subnet, IPAddress dns1 = (uint32_t)0x00000000, IPAddress dns2 = (uint32_t)0x00000000);
+
+        const char * getHostname();
+        bool setHostname(const char * hostname);
+
+        bool fullDuplex();
+        bool linkUp();
+        uint8_t linkSpeed();
+
+        bool enableIpV6();
+        IPv6Address localIPv6();
+
+        IPAddress localIP();
+        IPAddress subnetMask();
+        IPAddress gatewayIP();
+        IPAddress dnsIP(uint8_t dns_no = 0);
+
+        uint8_t * macAddress(uint8_t* mac);
+        String macAddress();
+
+        friend class WiFiClient;
+        friend class WiFiServer;
+};
+
+extern ETHClass ETH;
+
+#endif /* _ETH_H_ */