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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 ");
MYSERIAL0.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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