Initialisation depot
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DCC-Centrale/Firmware/BaseStation/DCCpp_Uno/Accessories.cpp
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DCC-Centrale/Firmware/BaseStation/DCCpp_Uno/Accessories.cpp
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/**********************************************************************
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Accessories.cpp
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COPYRIGHT (c) 2013-2016 Gregg E. Berman
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Part of DCC++ BASE STATION for the Arduino
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**********************************************************************/
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/**********************************************************************
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DCC++ BASE STATION can keep track of the direction of any turnout that is controlled
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by a DCC stationary accessory decoder. All turnouts, as well as any other DCC accessories
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connected in this fashion, can always be operated using the DCC BASE STATION Accessory command:
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<a ADDRESS SUBADDRESS ACTIVATE>
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However, this general command simply sends the appropriate DCC instruction packet to the main tracks
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to operate connected accessories. It does not store or retain any information regarding the current
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status of that accessory.
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To have this sketch store and retain the direction of DCC-connected turnouts, as well as automatically
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invoke the required <a> command as needed, first define/edit/delete such turnouts using the following
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variations of the "T" command:
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<T ID ADDRESS SUBADDRESS>: creates a new turnout ID, with specified ADDRESS and SUBADDRESS
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if turnout ID already exists, it is updated with specificed ADDRESS and SUBADDRESS
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returns: <O> if successful and <X> if unsuccessful (e.g. out of memory)
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<T ID>: deletes definition of turnout ID
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returns: <O> if successful and <X> if unsuccessful (e.g. ID does not exist)
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<T>: lists all defined turnouts
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returns: <H ID ADDRESS SUBADDRESS THROW> for each defined turnout or <X> if no turnouts defined
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where
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ID: the numeric ID (0-32767) of the turnout to control
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ADDRESS: the primary address of the decoder controlling this turnout (0-511)
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SUBADDRESS: the subaddress of the decoder controlling this turnout (0-3)
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Once all turnouts have been properly defined, use the <E> command to store their definitions to EEPROM.
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If you later make edits/additions/deletions to the turnout definitions, you must invoke the <E> command if you want those
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new definitions updated in the EEPROM. You can also clear everything stored in the EEPROM by invoking the <e> command.
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To "throw" turnouts that have been defined use:
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<T ID THROW>: sets turnout ID to either the "thrown" or "unthrown" position
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returns: <H ID THROW>, or <X> if turnout ID does not exist
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where
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ID: the numeric ID (0-32767) of the turnout to control
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THROW: 0 (unthrown) or 1 (thrown)
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When controlled as such, the Arduino updates and stores the direction of each Turnout in EEPROM so
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that it is retained even without power. A list of the current directions of each Turnout in the form <H ID THROW> is generated
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by this sketch whenever the <s> status command is invoked. This provides an efficient way of initializing
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the directions of any Turnouts being monitored or controlled by a separate interface or GUI program.
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**********************************************************************/
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#include "Accessories.h"
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#include "SerialCommand.h"
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#include "DCCpp_Uno.h"
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#include "EEStore.h"
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#include <EEPROM.h>
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#include "Comm.h"
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///////////////////////////////////////////////////////////////////////////////
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void Turnout::activate(int s){
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char c[20];
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data.tStatus=(s>0); // if s>0 set turnout=ON, else if zero or negative set turnout=OFF
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sprintf(c,"a %d %d %d",data.address,data.subAddress,data.tStatus);
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SerialCommand::parse(c);
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if(num>0)
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EEPROM.put(num,data.tStatus);
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INTERFACE.print("<H");
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INTERFACE.print(data.id);
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if(data.tStatus==0)
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INTERFACE.print(" 0>");
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else
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INTERFACE.print(" 1>");
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}
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///////////////////////////////////////////////////////////////////////////////
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Turnout* Turnout::get(int n){
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Turnout *tt;
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for(tt=firstTurnout;tt!=NULL && tt->data.id!=n;tt=tt->nextTurnout);
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return(tt);
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}
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///////////////////////////////////////////////////////////////////////////////
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void Turnout::remove(int n){
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Turnout *tt,*pp;
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for(tt=firstTurnout;tt!=NULL && tt->data.id!=n;pp=tt,tt=tt->nextTurnout);
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if(tt==NULL){
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INTERFACE.print("<X>");
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return;
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}
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if(tt==firstTurnout)
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firstTurnout=tt->nextTurnout;
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else
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pp->nextTurnout=tt->nextTurnout;
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free(tt);
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INTERFACE.print("<O>");
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}
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///////////////////////////////////////////////////////////////////////////////
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void Turnout::show(int n){
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Turnout *tt;
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if(firstTurnout==NULL){
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INTERFACE.print("<X>");
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return;
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}
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for(tt=firstTurnout;tt!=NULL;tt=tt->nextTurnout){
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INTERFACE.print("<H");
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INTERFACE.print(tt->data.id);
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if(n==1){
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INTERFACE.print(" ");
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INTERFACE.print(tt->data.address);
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INTERFACE.print(" ");
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INTERFACE.print(tt->data.subAddress);
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}
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if(tt->data.tStatus==0)
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INTERFACE.print(" 0>");
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else
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INTERFACE.print(" 1>");
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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void Turnout::parse(char *c){
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int n,s,m;
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Turnout *t;
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switch(sscanf(c,"%d %d %d",&n,&s,&m)){
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case 2: // argument is string with id number of turnout followed by zero (not thrown) or one (thrown)
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t=get(n);
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if(t!=NULL)
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t->activate(s);
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else
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INTERFACE.print("<X>");
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break;
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case 3: // argument is string with id number of turnout followed by an address and subAddress
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create(n,s,m,1);
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break;
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case 1: // argument is a string with id number only
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remove(n);
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break;
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case -1: // no arguments
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show(1); // verbose show
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break;
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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void Turnout::load(){
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struct TurnoutData data;
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Turnout *tt;
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for(int i=0;i<EEStore::eeStore->data.nTurnouts;i++){
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EEPROM.get(EEStore::pointer(),data);
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tt=create(data.id,data.address,data.subAddress);
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tt->data.tStatus=data.tStatus;
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tt->num=EEStore::pointer();
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EEStore::advance(sizeof(tt->data));
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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void Turnout::store(){
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Turnout *tt;
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tt=firstTurnout;
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EEStore::eeStore->data.nTurnouts=0;
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while(tt!=NULL){
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tt->num=EEStore::pointer();
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EEPROM.put(EEStore::pointer(),tt->data);
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EEStore::advance(sizeof(tt->data));
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tt=tt->nextTurnout;
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EEStore::eeStore->data.nTurnouts++;
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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Turnout *Turnout::create(int id, int add, int subAdd, int v){
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Turnout *tt;
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if(firstTurnout==NULL){
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firstTurnout=(Turnout *)calloc(1,sizeof(Turnout));
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tt=firstTurnout;
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} else if((tt=get(id))==NULL){
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tt=firstTurnout;
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while(tt->nextTurnout!=NULL)
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tt=tt->nextTurnout;
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tt->nextTurnout=(Turnout *)calloc(1,sizeof(Turnout));
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tt=tt->nextTurnout;
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}
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if(tt==NULL){ // problem allocating memory
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if(v==1)
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INTERFACE.print("<X>");
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return(tt);
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}
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tt->data.id=id;
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tt->data.address=add;
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tt->data.subAddress=subAdd;
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tt->data.tStatus=0;
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if(v==1)
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INTERFACE.print("<O>");
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return(tt);
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}
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///////////////////////////////////////////////////////////////////////////////
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Turnout *Turnout::firstTurnout=NULL;
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