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- /**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <https://www.gnu.org/licenses/>.
- *
- */
-
- #include "../inc/MarlinConfigPre.h"
-
- #if HAS_ETHERNET
-
- #include "ethernet.h"
- #include "../core/serial.h"
-
- #define DEBUG_OUT ENABLED(DEBUG_ETHERNET)
- #include "../core/debug_out.h"
-
- bool MarlinEthernet::hardware_enabled, // = false
- MarlinEthernet::have_telnet_client; // = false
-
- IPAddress MarlinEthernet::ip,
- MarlinEthernet::myDns,
- MarlinEthernet::gateway,
- MarlinEthernet::subnet;
-
- EthernetClient MarlinEthernet::telnetClient; // connected client
-
- MarlinEthernet ethernet;
-
- EthernetServer server(23); // telnet server
-
- enum linkStates { UNLINKED, LINKING, LINKED, CONNECTING, CONNECTED, NO_HARDWARE } linkState;
-
- #ifdef __IMXRT1062__
-
- static void teensyMAC(uint8_t * const mac) {
- const uint32_t m1 = HW_OCOTP_MAC1, m2 = HW_OCOTP_MAC0;
- mac[0] = m1 >> 8;
- mac[1] = m1 >> 0;
- mac[2] = m2 >> 24;
- mac[3] = m2 >> 16;
- mac[4] = m2 >> 8;
- mac[5] = m2 >> 0;
- }
-
- #else
-
- byte mac[] = MAC_ADDRESS;
-
- #endif
-
- void ethernet_cable_error() { SERIAL_ERROR_MSG("Ethernet cable is not connected."); }
-
- void MarlinEthernet::init() {
- if (!hardware_enabled) return;
-
- SERIAL_ECHO_MSG("Starting network...");
-
- // Init the Ethernet device
- #ifdef __IMXRT1062__
- uint8_t mac[6];
- teensyMAC(mac);
- #endif
-
- if (!ip) {
- Ethernet.begin(mac); // use DHCP
- }
- else {
- if (!gateway) {
- gateway = ip;
- gateway[3] = 1;
- myDns = gateway;
- subnet = IPAddress(255,255,255,0);
- }
- if (!myDns) myDns = gateway;
- if (!subnet) subnet = IPAddress(255,255,255,0);
- Ethernet.begin(mac, ip, myDns, gateway, subnet);
- }
-
- // Check for Ethernet hardware present
- if (Ethernet.hardwareStatus() == EthernetNoHardware) {
- SERIAL_ERROR_MSG("No Ethernet hardware found.");
- linkState = NO_HARDWARE;
- return;
- }
-
- linkState = UNLINKED;
-
- if (Ethernet.linkStatus() == LinkOFF)
- ethernet_cable_error();
- }
-
- void MarlinEthernet::check() {
- if (!hardware_enabled) return;
-
- switch (linkState) {
- case NO_HARDWARE:
- break;
-
- case UNLINKED:
- if (Ethernet.linkStatus() == LinkOFF) break;
-
- SERIAL_ECHOLNPGM("Ethernet cable connected");
- server.begin();
- linkState = LINKING;
- break;
-
- case LINKING:
- if (!Ethernet.localIP()) break;
-
- SERIAL_ECHOPGM("Successfully started telnet server with IP ");
- MYSERIAL1.println(Ethernet.localIP());
-
- linkState = LINKED;
- break;
-
- case LINKED:
- if (Ethernet.linkStatus() == LinkOFF) {
- ethernet_cable_error();
- linkState = UNLINKED;
- break;
- }
- telnetClient = server.accept();
- if (telnetClient) linkState = CONNECTING;
- break;
-
- case CONNECTING:
- telnetClient.println("Marlin " SHORT_BUILD_VERSION);
- #if defined(STRING_DISTRIBUTION_DATE) && defined(STRING_CONFIG_H_AUTHOR)
- telnetClient.println(
- " Last Updated: " STRING_DISTRIBUTION_DATE
- " | Author: " STRING_CONFIG_H_AUTHOR
- );
- #endif
- telnetClient.println("Compiled: " __DATE__);
-
- SERIAL_ECHOLNPGM("Client connected");
- have_telnet_client = true;
- linkState = CONNECTED;
- break;
-
- case CONNECTED:
- if (telnetClient && !telnetClient.connected()) {
- SERIAL_ECHOLNPGM("Client disconnected");
- telnetClient.stop();
- have_telnet_client = false;
- linkState = LINKED;
- }
- if (Ethernet.linkStatus() == LinkOFF) {
- ethernet_cable_error();
- if (telnetClient) telnetClient.stop();
- linkState = UNLINKED;
- }
- break;
-
- default: break;
- }
- }
-
- #endif // HAS_ETHERNET
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