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b89c9068ff
CommandStation-EX/JMRIParser.cpp
Asbelos b89c9068ff Compileable JMRIParser 
Has Turnout, Output Sensor support.
Needs further cleaning and cross checking against spec.
May implement Daves Comms manager etc.
2020-06-03 14:26:49 +01:00

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#include "StringParser.h"
#include "JMRIParser.h"
#include "DCC.h"
#include "DCCWaveform.h"
#include "Turnouts.h"
#include "Outputs.h"
#include "Sensors.h"
#include "EEStore.h"
const char VERSION[]="99.666";
// This is a JMRI command parser
// It doesnt know how the string got here, nor how it gets back.
// It knows nothing about hardware or tracks... it just parses strings and
// calls the corresponding DCC api.
// Non-DCC things like turnouts, pins and sensors are handled in additional JMRI interface classes.
// See documentation on DCC class for info on this section
void JMRIParser::parse(Stream & stream,const char *com) {
int p[MAX_PARAMS];
bool result;
int params=StringParser::parse(com+1,p,MAX_PARAMS);
// Functions return from this switch if complete, break from switch implies error <X> to send
switch(com[0]) {
/***** SET ENGINE THROTTLES USING 128-STEP SPEED CONTROL ****/
case 't': // <t REGISTER CAB SPEED DIRECTION>
DCC::setThrottle(p[1],p[2],p[3]);
StringParser::send(stream,F("<T %d %d %d>"), p[0], p[2],p[3]);
return;
/***** OPERATE ENGINE DECODER FUNCTIONS F0-F28 ****/
case 'f': // <f CAB BYTE1 [BYTE2]>
if (params==3) DCC::setFunction(p[0],p[1],p[2]);
else DCC::setFunction(p[0],p[1]);
// TODO response?
return;
/***** OPERATE STATIONARY ACCESSORY DECODERS ****/
case 'a': // <a ADDRESS SUBADDRESS ACTIVATE>
/*
* turns an accessory (stationary) decoder on or off
*
* ADDRESS: the primary address of the decoder (0-511)
* SUBADDRESS: the subaddress of the decoder (0-3)
* ACTIVATE: 1=on (set), 0=off (clear)
*
* Note that many decoders and controllers combine the ADDRESS and SUBADDRESS into a single number, N,
* from 1 through a max of 2044, where
*
* N = (ADDRESS - 1) * 4 + SUBADDRESS + 1, for all ADDRESS>0
*
* OR
*
* ADDRESS = INT((N - 1) / 4) + 1
* SUBADDRESS = (N - 1) % 4
*
* returns: NONE
*/
DCC::setAccessory(p[0],p[1],p[2]);
return;
/***** CREATE/EDIT/REMOVE/SHOW & OPERATE A TURN-OUT ****/
case 'T': // <T ID THROW>
/*
* <T ID THROW>: sets turnout ID to either the "thrown" or "unthrown" position
*
* ID: the numeric ID (0-32767) of the turnout to control
* THROW: 0 (unthrown) or 1 (thrown)
*
* returns: <H ID THROW> or <X> if turnout ID does not exist
*
* *** SEE ACCESSORIES.CPP FOR COMPLETE INFO ON THE DIFFERENT VARIATIONS OF THE "T" COMMAND
* USED TO CREATE/EDIT/REMOVE/SHOW TURNOUT DEFINITIONS
*/
if (parseT(stream,params,p)) return;
break;
/***** CREATE/EDIT/REMOVE/SHOW & OPERATE AN OUTPUT PIN ****/
case 'Z': // <Z ID ACTIVATE>
if (parseZ(stream,params,p)) return;
break;
/***** CREATE/EDIT/REMOVE/SHOW A SENSOR ****/
case 'S':
if (parseS(stream,params,p)) return;
break;
/***** WRITE CONFIGURATION VARIABLE BYTE TO ENGINE DECODER ON MAIN OPERATIONS TRACK ****/
case 'w': // <w CAB CV VALUE>
/*
* writes, without any verification, a Configuration Variable to the decoder of an engine on the main operations track
*
* CAB: the short (1-127) or long (128-10293) address of the engine decoder
* CV: the number of the Configuration Variable memory location in the decoder to write to (1-1024)
* VALUE: the value to be written to the Configuration Variable memory location (0-255)
*
* returns: NONE
*/
DCC::writeCVByteMain(p[0],p[1],p[2]);
return;
/***** WRITE CONFIGURATION VARIABLE BIT TO ENGINE DECODER ON MAIN OPERATIONS TRACK ****/
case 'b': // <b CAB CV BIT VALUE>
/*
* writes, without any verification, a single bit within a Configuration Variable to the decoder of an engine on the main operations track
*
* CAB: the short (1-127) or long (128-10293) address of the engine decoder
* CV: the number of the Configuration Variable memory location in the decoder to write to (1-1024)
* BIT: the bit number of the Configurarion Variable regsiter to write (0-7)
* VALUE: the value of the bit to be written (0-1)
*
* returns: NONE
*/
DCC::writeCVBitMain(p[0],p[1],p[2],p[3]);
return;
/***** WRITE CONFIGURATION VARIABLE BYTE TO ENGINE DECODER ON PROGRAMMING TRACK ****/
case 'W': // <W CV VALUE CALLBACKNUM CALLBACKSUB>
/*
* writes, and then verifies, a Configuration Variable to the decoder of an engine on the programming track
*
* CV: the number of the Configuration Variable memory location in the decoder to write to (1-1024)
* VALUE: the value to be written to the Configuration Variable memory location (0-255)
* CALLBACKNUM: an arbitrary integer (0-32767) that is ignored by the Base Station and is simply echoed back in the output - useful for external programs that call this function
* CALLBACKSUB: a second arbitrary integer (0-32767) that is ignored by the Base Station and is simply echoed back in the output - useful for external programs (e.g. DCC++ Interface) that call this function
*
* returns: <r CALLBACKNUM|CALLBACKSUB|CV Value)
* where VALUE is a number from 0-255 as read from the requested CV, or -1 if verificaiton read fails
*/
result=DCC::writeCVByte(p[0],p[1]);
StringParser::send(stream,F("<r%d|%d|%d %d>"), p[2], p[3],p[0],result?p[1]:-1);
return;
/***** WRITE CONFIGURATION VARIABLE BIT TO ENGINE DECODER ON PROGRAMMING TRACK ****/
case 'B': // <B CV BIT VALUE CALLBACKNUM CALLBACKSUB>
/*
* writes, and then verifies, a single bit within a Configuration Variable to the decoder of an engine on the programming track
*
* CV: the number of the Configuration Variable memory location in the decoder to write to (1-1024)
* BIT: the bit number of the Configurarion Variable memory location to write (0-7)
* VALUE: the value of the bit to be written (0-1)
* CALLBACKNUM: an arbitrary integer (0-32767) that is ignored by the Base Station and is simply echoed back in the output - useful for external programs that call this function
* CALLBACKSUB: a second arbitrary integer (0-32767) that is ignored by the Base Station and is simply echoed back in the output - useful for external programs (e.g. DCC++ Interface) that call this function
*
* returns: <r CALLBACKNUM|CALLBACKSUB|CV BIT VALUE)
* where VALUE is a number from 0-1 as read from the requested CV bit, or -1 if verificaiton read fails
*/
result=DCC::writeCVBit(p[0],p[1],p[2]);
StringParser::send(stream,F("<r%d|%d|%d %d %d>"), p[3],p[4], p[0],p[1],result?p[2]:-1);
return;
/***** READ CONFIGURATION VARIABLE BYTE FROM ENGINE DECODER ON PROGRAMMING TRACK ****/
case 'R': // <R CV CALLBACKNUM CALLBACKSUB>
/*
* reads a Configuration Variable from the decoder of an engine on the programming track
*
* CV: the number of the Configuration Variable memory location in the decoder to read from (1-1024)
* CALLBACKNUM: an arbitrary integer (0-32767) that is ignored by the Base Station and is simply echoed back in the output - useful for external programs that call this function
* CALLBACKSUB: a second arbitrary integer (0-32767) that is ignored by the Base Station and is simply echoed back in the output - useful for external programs (e.g. DCC++ Interface) that call this function
*
* returns: <r CALLBACKNUM|CALLBACKSUB|CV VALUE)
* where VALUE is a number from 0-255 as read from the requested CV, or -1 if read could not be verified
*/
StringParser::send(stream,F("<r%d|%d|%d %d>"),p[1],p[2],p[0],DCC::readCV(p[0]));
return;
/***** TURN ON POWER FROM MOTOR SHIELD TO TRACKS ****/
case '1': // <1>
/*
* enables power from the motor shield to the main operations and programming tracks
*
* returns: <p1>
*/
DCCWaveform::mainTrack.setPowerMode(POWERMODE::ON);
DCCWaveform::progTrack.setPowerMode(POWERMODE::ON);
StringParser::send(stream,F("<p1>"));
return;
/***** TURN OFF POWER FROM MOTOR SHIELD TO TRACKS ****/
case '0': // <0>
/*
* disables power from the motor shield to the main operations and programming tracks
*
* returns: <p0>
*/
DCCWaveform::mainTrack.setPowerMode(POWERMODE::OFF);
DCCWaveform::progTrack.setPowerMode(POWERMODE::OFF);
StringParser::send(stream,F("<p0>"));
return;
/***** READ MAIN OPERATIONS TRACK CURRENT ****/
case 'c': // <c>
/*
* reads current being drawn on main operations track
*
* returns: <a CURRENT>
* where CURRENT = 0-1024, based on exponentially-smoothed weighting scheme
*/
StringParser::send(stream,F("<a %d>"), DCCWaveform::mainTrack.getLastCurrent());
return;
/***** SHOW STATUS OF ALL SENSORS ****/
case 'Q': // <Q>
/*
* returns: the status of each sensor ID in the form <Q ID> (active) or <q ID> (not active)
*/
Sensor::status(stream);
return;
/***** READ STATUS OF DCC++ BASE STATION ****/
case 's': // <s>
/*
* returns status messages containing track power status, throttle status, turn-out status, and a version number
* NOTE: this is very useful as a first command for an interface to send to this sketch in order to verify connectivity and update any GUI to reflect actual throttle and turn-out settings
*
* returns: series of status messages that can be read by an interface to determine status of DCC++ Base Station and important settings
*/
// TODO Send stats of speed reminders table
StringParser::send(stream,F("<iDCC-EX BASE STATION FOR ARDUINO / %s: V-%s %s/%s\n>"), BOARD_NAME, VERSION, __DATE__, __TIME__ );
// TODO send status of turnouts etc etc
return;
/***** STORE SETTINGS IN EEPROM ****/
case 'E': // <E>
/*
* stores settings for turnouts and sensors EEPROM
*
* returns: <e nTurnouts nSensors>
*/
EEStore::store();
StringParser::send(stream,F("<e %d %d %d>"), EEStore::eeStore->data.nTurnouts, EEStore::eeStore->data.nSensors, EEStore::eeStore->data.nOutputs);
return;
/***** CLEAR SETTINGS IN EEPROM ****/
case 'e': // <e>
/*
* clears settings for Turnouts in EEPROM
*
* returns: <O>
*/
EEStore::clear();
StringParser::send(stream, F("<O>"));
return;
case ' ': // < >
/*
* simply prints a carriage return - useful when interacting with Ardiuno through stream monitor window
*
* returns: a carriage return
*/
StringParser::send(stream,F("\n"));
return;
} // end of opcode switch
// Any fallout here sends an <X>
StringParser::send(stream, F("<X>"));
}
bool JMRIParser::parseZ(Stream & stream, int params, int p[]){
/*
* <Z ID ACTIVATE>: sets output ID to either the "active" or "inactive" state
*
* ID: the numeric ID (0-32767) of the output to control
* ACTIVATE: 0 (active) or 1 (inactive)
*
* returns: <Y ID ACTIVATE> or <X> if output ID does not exist
*
* *** SEE OUTPUTS.CPP FOR COMPLETE INFO ON THE DIFFERENT VARIATIONS OF THE "O" COMMAND
* USED TO CREATE/EDIT/REMOVE/SHOW TURNOUT DEFINITIONS
*/
switch (params) {
case 2: // argument is string with id number of output followed by zero (LOW) or one (HIGH)
{
Output * o=Output::get(p[0]);
if(o==NULL) return false;
o->activate(p[1]);
StringParser::send(stream,F("<Y %d %d>"), p[0],p[1]);
}
break;
case 3: // argument is string with id number of output followed by a pin number and invert flag
Output::create(p[0],p[1],p[2],1);
break;
case 1: // argument is a string with id number only
Output::remove(p[0]);
break;
case 0: // no arguments
Output::showAll(stream); // verbose show
break;
default:
return false;
}
return true;
}
//===================================
bool JMRIParser::parseT(Stream & stream, int params, int p[]) {
switch(params){
case 0: // <T>
Turnout::showAll(stream); // verbose show
break;
case 1: // <T id>
if (!Turnout::remove(p[0])) break;
StringParser::send(stream,F("<O>"));
break;
case 2: // <T id 0|1>
if (!Turnout::activate(p[0],p[1])) return false;
Turnout::show(stream,p[0]);
break;
case 3: // <T id addr subaddr>
if (!Turnout::create(p[0],p[1],p[2])) return false;
StringParser::send(stream,F("<O>"));
break;
default:
return false; // will <x>
}
return true;
}
bool JMRIParser::parseS(Stream & stream, int params, int p[]) {
switch(params){
case 3: // argument is string with id number of sensor followed by a pin number and pullUp indicator (0=LOW/1=HIGH)
Sensor::create(p[0],p[1],p[2]);
return true;
case 1: // argument is a string with id number only
if (Sensor::remove(p[0])) return true;
break;
case -1: // no arguments
Sensor::show(stream);
return true;
default: // invalid number of arguments
break;
}
return false;
}
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