mirror of
https://github.com/DCC-EX/CommandStation-EX.git
synced 2024-11-30 03:26:13 +01:00
226 lines
8.9 KiB
C++
226 lines
8.9 KiB
C++
/*
|
|
* © 2020, Chris Harlow. All rights reserved.
|
|
*
|
|
* This file is part of Asbelos DCC API
|
|
*
|
|
* 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/>.
|
|
*/
|
|
/**********************************************************************
|
|
|
|
DCC++ BASE STATION supports optional OUTPUT control of any unused Arduino Pins for custom purposes.
|
|
Pins can be activited or de-activated. The default is to set ACTIVE pins HIGH and INACTIVE pins LOW.
|
|
However, this default behavior can be inverted for any pin in which case ACTIVE=LOW and INACTIVE=HIGH.
|
|
|
|
Definitions and state (ACTIVE/INACTIVE) for pins are retained in EEPROM and restored on power-up.
|
|
The default is to set each defined pin to active or inactive according to its restored state.
|
|
However, the default behavior can be modified so that any pin can be forced to be either active or inactive
|
|
upon power-up regardless of its previous state before power-down.
|
|
|
|
To have this sketch utilize one or more Arduino pins as custom outputs, first define/edit/delete
|
|
output definitions using the following variation of the "Z" command:
|
|
|
|
<Z ID PIN IFLAG>: creates a new output ID, with specified PIN and IFLAG values.
|
|
if output ID already exists, it is updated with specificed PIN and IFLAG.
|
|
note: output state will be immediately set to ACTIVE/INACTIVE and pin will be set to HIGH/LOW
|
|
according to IFLAG value specifcied (see below).
|
|
returns: <O> if successful and <X> if unsuccessful (e.g. out of memory)
|
|
|
|
<Z ID>: deletes definition of output ID
|
|
returns: <O> if successful and <X> if unsuccessful (e.g. ID does not exist)
|
|
|
|
<Z>: lists all defined output pins
|
|
returns: <Y ID PIN IFLAG STATE> for each defined output pin or <X> if no output pins defined
|
|
|
|
where
|
|
|
|
ID: the numeric ID (0-32767) of the output
|
|
PIN: the arduino pin number to use for the output
|
|
STATE: the state of the output (0=INACTIVE / 1=ACTIVE)
|
|
IFLAG: defines the operational behavior of the output based on bits 0, 1, and 2 as follows:
|
|
|
|
IFLAG, bit 0: 0 = forward operation (ACTIVE=HIGH / INACTIVE=LOW)
|
|
1 = inverted operation (ACTIVE=LOW / INACTIVE=HIGH)
|
|
|
|
IFLAG, bit 1: 0 = state of pin restored on power-up to either ACTIVE or INACTIVE depending
|
|
on state before power-down; state of pin set to INACTIVE when first created
|
|
1 = state of pin set on power-up, or when first created, to either ACTIVE of INACTIVE
|
|
depending on IFLAG, bit 2
|
|
|
|
IFLAG, bit 2: 0 = state of pin set to INACTIVE uponm power-up or when first created
|
|
1 = state of pin set to ACTIVE uponm power-up or when first created
|
|
|
|
Once all outputs have been properly defined, use the <E> command to store their definitions to EEPROM.
|
|
If you later make edits/additions/deletions to the output definitions, you must invoke the <E> command if you want those
|
|
new definitions updated in the EEPROM. You can also clear everything stored in the EEPROM by invoking the <e> command.
|
|
|
|
To change the state of outputs that have been defined use:
|
|
|
|
<Z ID STATE>: sets output ID to either ACTIVE or INACTIVE state
|
|
returns: <Y ID STATE>, or <X> if turnout ID does not exist
|
|
|
|
where
|
|
|
|
ID: the numeric ID (0-32767) of the turnout to control
|
|
STATE: the state of the output (0=INACTIVE / 1=ACTIVE)
|
|
|
|
When controlled as such, the Arduino updates and stores the direction of each output in EEPROM so
|
|
that it is retained even without power. A list of the current states of each output in the form <Y ID STATE> is generated
|
|
by this sketch whenever the <s> status command is invoked. This provides an efficient way of initializing
|
|
the state of any outputs being monitored or controlled by a separate interface or GUI program.
|
|
|
|
**********************************************************************/
|
|
|
|
#include "Outputs.h"
|
|
#ifndef DISABLE_EEPROM
|
|
#include "EEStore.h"
|
|
#endif
|
|
#include "StringFormatter.h"
|
|
#include "IODevice.h"
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Static function to print all output states to stream in the form "<Y id state>"
|
|
|
|
void Output::printAll(Print *stream){
|
|
for (Output *tt = Output::firstOutput; tt != NULL; tt = tt->nextOutput)
|
|
StringFormatter::send(stream, F("<Y %d %d>\n"), tt->data.id, tt->data.active);
|
|
} // Output::printAll
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Object method to activate / deactivate the Output state.
|
|
|
|
void Output::activate(uint16_t s){
|
|
s = (s>0); // Make 0 or 1
|
|
data.active = s; // if s>0, set status to active, else inactive
|
|
// set state of output pin to HIGH or LOW depending on whether bit zero of iFlag is set to 0 (ACTIVE=HIGH) or 1 (ACTIVE=LOW)
|
|
IODevice::write(data.pin, s ^ data.invert);
|
|
#ifndef DISABLE_EEPROM
|
|
// Update EEPROM if output has been stored.
|
|
if(EEStore::eeStore->data.nOutputs > 0 && num > 0)
|
|
EEPROM.put(num, data.oStatus);
|
|
#endif
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Static function to locate Output object specified by ID 'n'.
|
|
// Return NULL if not found.
|
|
|
|
Output* Output::get(uint16_t n){
|
|
Output *tt;
|
|
for(tt=firstOutput;tt!=NULL && tt->data.id!=n;tt=tt->nextOutput);
|
|
return(tt);
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Static function to delete Output object specified by ID 'n'.
|
|
// Return false if not found.
|
|
|
|
bool Output::remove(uint16_t n){
|
|
Output *tt,*pp=NULL;
|
|
|
|
for(tt=firstOutput;tt!=NULL && tt->data.id!=n;pp=tt,tt=tt->nextOutput);
|
|
|
|
if(tt==NULL) return false;
|
|
|
|
if(tt==firstOutput)
|
|
firstOutput=tt->nextOutput;
|
|
else
|
|
pp->nextOutput=tt->nextOutput;
|
|
|
|
free(tt);
|
|
|
|
return true;
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Static function to load configuration and state of all Outputs from EEPROM
|
|
#ifndef DISABLE_EEPROM
|
|
void Output::load(){
|
|
struct OutputData data;
|
|
Output *tt;
|
|
|
|
for(uint16_t i=0;i<EEStore::eeStore->data.nOutputs;i++){
|
|
EEPROM.get(EEStore::pointer(),data);
|
|
// Create new object, set current state to default or to saved state from eeprom.
|
|
tt=create(data.id, data.pin, data.flags);
|
|
uint8_t state = data.setDefault ? data.defaultValue : data.active;
|
|
tt->activate(state);
|
|
|
|
if (tt) tt->num=EEStore::pointer() + offsetof(OutputData, oStatus); // Save pointer to flags within EEPROM
|
|
EEStore::advance(sizeof(tt->data));
|
|
}
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Static function to store configuration and state of all Outputs to EEPROM
|
|
|
|
void Output::store(){
|
|
Output *tt;
|
|
|
|
tt=firstOutput;
|
|
EEStore::eeStore->data.nOutputs=0;
|
|
|
|
while(tt!=NULL){
|
|
EEPROM.put(EEStore::pointer(),tt->data);
|
|
tt->num=EEStore::pointer() + offsetof(OutputData, oStatus); // Save pointer to flags within EEPROM
|
|
EEStore::advance(sizeof(tt->data));
|
|
tt=tt->nextOutput;
|
|
EEStore::eeStore->data.nOutputs++;
|
|
}
|
|
|
|
}
|
|
#endif
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Static function to create an Output object
|
|
// The obscurely named parameter 'v' is 0 if called from the load() function
|
|
// and 1 if called from the <Z> command processing.
|
|
|
|
Output *Output::create(uint16_t id, VPIN pin, int iFlag, int v){
|
|
Output *tt;
|
|
|
|
if (pin > VPIN_MAX) return NULL;
|
|
|
|
if(firstOutput==NULL){
|
|
firstOutput=(Output *)calloc(1,sizeof(Output));
|
|
tt=firstOutput;
|
|
} else if((tt=get(id))==NULL){
|
|
tt=firstOutput;
|
|
while(tt->nextOutput!=NULL)
|
|
tt=tt->nextOutput;
|
|
tt->nextOutput=(Output *)calloc(1,sizeof(Output));
|
|
tt=tt->nextOutput;
|
|
}
|
|
|
|
if(tt==NULL) return tt;
|
|
tt->num = 0; // make sure new object doesn't get written to EEPROM until store() command
|
|
tt->data.id=id;
|
|
tt->data.pin=pin;
|
|
tt->data.flags=iFlag;
|
|
|
|
if(v==1){
|
|
// sets status to 0 (INACTIVE) is bit 1 of iFlag=0, otherwise set to value of bit 2 of iFlag
|
|
if (tt->data.setDefault)
|
|
tt->data.active = tt->data.defaultValue;
|
|
else
|
|
tt->data.active = 0;
|
|
}
|
|
IODevice::write(tt->data.pin, tt->data.active ^ tt->data.invert);
|
|
|
|
return(tt);
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
Output *Output::firstOutput=NULL;
|