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CommandStation-EX/LCN.cpp
Fred d7b2cf3d76
Assorted bits (#138)
* LCN

* Prevent deprecated compiler warning

* Implement huge function numbers

* new commands

<! [cab]> forget locos.
<9> ESTOP ALL.
<D RESET> reboot arduino

* Waveform accuracy msg

* Drop post-write verify

* UNUSED_PIN current measure

and callback -2 for cv actions.

* Correct diags

* ESTOP a forget loco

* ESTOP loco on forget

* Avoid compiler warning

* current sensor offset

* Restore <1 JOIN> after prog track operation

* <!> ESTOP <-> FORGET

* Auto current offset detection

* manage current offset and diagnostics

* neater msg at startup

* Add startup message to LCN master

* DCC::setJoinRelayPin

Co-authored-by: Asbelos <asbelos@btinternet.com>
2021-03-23 10:37:05 -04:00

75 lines
2.3 KiB
C++

/*
* © 2021, Chris Harlow. All rights reserved.
*
* This file is part of DCC-EX CommandStation-EX
*
* This 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.
*
* It 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 CommandStation. If not, see <https://www.gnu.org/licenses/>.
*/
#include "LCN.h"
#include "DIAG.h"
#include "Turnouts.h"
#include "Sensors.h"
int LCN::id = 0;
Stream * LCN::stream=NULL;
bool LCN::firstLoop=true;
void LCN::init(Stream & lcnstream) {
stream=&lcnstream;
DIAG(F("\nLCN connection setup\n"));
}
// Inbound LCN traffic is postfix notation... nnnX where nnn is an id, X is the opcode
void LCN::loop() {
if (!stream) return;
if (firstLoop) {
firstLoop=false;
stream->println('X');
return;
}
while (stream->available()) {
int ch = stream->read();
if (ch >= 0 && ch <= '9') { // accumulate id value
id = 10 * id + ch - '0';
}
else if (ch == 't' || ch == 'T') { // Turnout opcodes
if (Diag::LCN) DIAG(F("\nLCN IN %d%c\n"),id,(char)ch);
Turnout * tt = Turnout::get(id);
if (!tt) Turnout::create(id, LCN_TURNOUT_ADDRESS, 0);
if (ch == 't') tt->data.tStatus |= STATUS_ACTIVE;
else tt->data.tStatus &= ~STATUS_ACTIVE;
Turnout::turnoutlistHash++; // signals ED update of turnout data
id = 0;
}
else if (ch == 'S' || ch == 's') {
if (Diag::LCN) DIAG(F("\nLCN IN %d%c\n"),id,(char)ch);
Sensor * ss = Sensor::get(id);
if (!ss) ss = Sensor::create(id, 255,0); // impossible pin
ss->active = ch == 'S';
id = 0;
}
else id = 0; // ignore any other garbage from LCN
}
}
void LCN::send(char opcode, int id, bool state) {
if (stream) {
StringFormatter::send(stream,F("%c/%d/%d"), opcode, id , state);
if (Diag::LCN) DIAG(F("\nLCN OUT %c/%d/%d\n"), opcode, id , state);
}
}