mirror of
https://github.com/DCC-EX/CommandStation-EX.git
synced 2024-11-22 15:46:14 +01:00
317 lines
8.9 KiB
C++
317 lines
8.9 KiB
C++
/*
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* © 2021 Neil McKechnie
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* © 2021 M Steve Todd
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* © 2021 Fred Decker
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* © 2020-2021 Harald Barth
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* © 2020-2022 Chris Harlow
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* © 2013-2016 Gregg E. Berman
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* All rights reserved.
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*
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* This file is part of CommandStation-EX
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*
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* This is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* It is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with CommandStation. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef TURNOUTS_H
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#define TURNOUTS_H
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//#define EESTOREDEBUG
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#include "Arduino.h"
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#include "IODevice.h"
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#include "StringFormatter.h"
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// Turnout type definitions
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enum {
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TURNOUT_DCC = 1,
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TURNOUT_SERVO = 2,
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TURNOUT_VPIN = 3,
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TURNOUT_LCN = 4,
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};
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/*************************************************************************************
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* Turnout - Base class for turnouts.
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*
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*************************************************************************************/
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class Turnout {
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protected:
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/*
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* Object data
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*/
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// The TurnoutData struct contains data common to all turnout types, that
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// is written to EEPROM when the turnout is saved.
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// The first byte of this struct contains the 'closed' flag which is
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// updated whenever the turnout changes from thrown to closed and
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// vice versa. If the turnout has been saved, then this byte is rewritten
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// when changed in RAM. The 'closed' flag must be located in the first byte.
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struct TurnoutData {
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union {
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struct {
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bool closed : 1;
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bool hidden : 1;
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bool _rfu : 1;
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uint8_t turnoutType : 5;
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};
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uint8_t flags;
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};
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uint16_t id;
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} _turnoutData; // 3 bytes
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#ifndef DISABLE_EEPROM
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// Address in eeprom of first byte of the _turnoutData struct (containing the closed flag).
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// Set to zero if the object has not been saved in EEPROM, e.g. for newly created Turnouts, and
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// for all LCN turnouts.
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uint16_t _eepromAddress = 0;
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#endif
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// Pointer to next turnout on linked list.
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Turnout *_nextTurnout = 0;
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/*
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* Constructor
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*/
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Turnout(uint16_t id, uint8_t turnoutType, bool closed) {
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_turnoutData.id = id;
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_turnoutData.turnoutType = turnoutType;
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_turnoutData.closed = closed;
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_turnoutData.hidden=false;
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add(this);
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}
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/*
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* Static data
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*/
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static Turnout *_firstTurnout;
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static int _turnoutlistHash;
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/*
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* Virtual functions
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*/
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virtual bool setClosedInternal(bool close) = 0; // Mandatory in subclass
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virtual void save() {}
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/*
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* Static functions
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*/
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static void add(Turnout *tt);
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public:
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static Turnout *get(uint16_t id);
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/*
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* Static data
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*/
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static int turnoutlistHash;
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static const bool useClassicTurnoutCommands;
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/*
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* Public base class functions
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*/
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inline bool isClosed() { return _turnoutData.closed; };
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inline bool isThrown() { return !_turnoutData.closed; }
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inline bool isHidden() { return _turnoutData.hidden; }
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inline void setHidden(bool h) { _turnoutData.hidden=h; }
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inline bool isType(uint8_t type) { return _turnoutData.turnoutType == type; }
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inline uint16_t getId() { return _turnoutData.id; }
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inline Turnout *next() { return _nextTurnout; }
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void printState(Print *stream);
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/*
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* Virtual functions
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*/
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virtual void print(Print *stream) {
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(void)stream; // avoid compiler warnings.
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}
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virtual ~Turnout() {} // Destructor
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/*
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* Public static functions
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*/
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inline static bool exists(uint16_t id) { return get(id) != 0; }
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static bool remove(uint16_t id);
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static bool isClosed(uint16_t id);
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inline static bool isThrown(uint16_t id) {
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return !isClosed(id);
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}
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static bool setClosed(uint16_t id, bool closeFlag);
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inline static bool setClosed(uint16_t id) {
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return setClosed(id, true);
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}
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inline static bool setThrown(uint16_t id) {
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return setClosed(id, false);
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}
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static bool setClosedStateOnly(uint16_t id, bool close);
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inline static Turnout *first() { return _firstTurnout; }
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#ifndef DISABLE_EEPROM
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// Load all turnout definitions.
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static void load();
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// Load one turnout definition
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static Turnout *loadTurnout();
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// Save all turnout definitions
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static void store();
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#endif
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static bool printAll(Print *stream) {
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bool gotOne=false;
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for (Turnout *tt = _firstTurnout; tt != 0; tt = tt->_nextTurnout)
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if (!tt->isHidden()) {
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gotOne=true;
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StringFormatter::send(stream, F("<H %d %d>\n"),tt->getId(), tt->isThrown());
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}
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return gotOne;
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}
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};
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/*************************************************************************************
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* ServoTurnout - Turnout controlled by servo device.
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*
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*************************************************************************************/
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class ServoTurnout : public Turnout {
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private:
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// ServoTurnoutData contains data specific to this subclass that is
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// written to EEPROM when the turnout is saved.
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struct ServoTurnoutData {
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VPIN vpin;
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uint16_t closedPosition : 12;
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uint16_t thrownPosition : 12;
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uint8_t profile;
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} _servoTurnoutData; // 6 bytes
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// Constructor
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ServoTurnout(uint16_t id, VPIN vpin, uint16_t thrownPosition, uint16_t closedPosition, uint8_t profile, bool closed);
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public:
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// Create function
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static Turnout *create(uint16_t id, VPIN vpin, uint16_t thrownPosition, uint16_t closedPosition, uint8_t profile, bool closed=true);
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// Load a Servo turnout definition from EEPROM. The common Turnout data has already been read at this point.
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static Turnout *load(struct TurnoutData *turnoutData);
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void print(Print *stream) override;
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protected:
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// ServoTurnout-specific code for throwing or closing a servo turnout.
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bool setClosedInternal(bool close) override;
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void save() override;
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};
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/*************************************************************************************
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* DCCTurnout - Turnout controlled by DCC Accessory Controller.
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*
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*************************************************************************************/
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class DCCTurnout : public Turnout {
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private:
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// DCCTurnoutData contains data specific to this subclass that is
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// written to EEPROM when the turnout is saved.
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struct DCCTurnoutData {
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// DCC address (Address in bits 15-2, subaddress in bits 1-0)
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struct {
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uint16_t address : 14;
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uint8_t subAddress : 2;
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};
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} _dccTurnoutData; // 2 bytes
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// Constructor
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DCCTurnout(uint16_t id, uint16_t address, uint8_t subAdd);
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public:
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// Create function
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static Turnout *create(uint16_t id, uint16_t add, uint8_t subAdd);
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// Load a VPIN turnout definition from EEPROM. The common Turnout data has already been read at this point.
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static Turnout *load(struct TurnoutData *turnoutData);
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void print(Print *stream) override;
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// Flag whether DCC Accessory packets are to contain 1=close/0=throw(RCN-213) or 1=throw/0-close (DCC++ Classic)
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static const bool rcn213Compliant;
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protected:
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bool setClosedInternal(bool close) override;
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void save() override;
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};
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/*************************************************************************************
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* VpinTurnout - Turnout controlled through a HAL vpin.
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*
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*************************************************************************************/
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class VpinTurnout : public Turnout {
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private:
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// VpinTurnoutData contains data specific to this subclass that is
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// written to EEPROM when the turnout is saved.
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struct VpinTurnoutData {
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VPIN vpin;
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} _vpinTurnoutData; // 2 bytes
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// Constructor
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VpinTurnout(uint16_t id, VPIN vpin, bool closed);
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public:
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// Create function
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static Turnout *create(uint16_t id, VPIN vpin, bool closed=true);
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// Load a VPIN turnout definition from EEPROM. The common Turnout data has already been read at this point.
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static Turnout *load(struct TurnoutData *turnoutData);
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void print(Print *stream) override;
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protected:
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bool setClosedInternal(bool close) override;
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void save() override;
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};
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/*************************************************************************************
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* LCNTurnout - Turnout controlled by Loconet
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*
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*************************************************************************************/
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class LCNTurnout : public Turnout {
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private:
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// LCNTurnout has no specific data, and in any case is not written to EEPROM!
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// struct LCNTurnoutData {
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// } _lcnTurnoutData; // 0 bytes
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// Constructor
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LCNTurnout(uint16_t id, bool closed);
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public:
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// Create function
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static Turnout *create(uint16_t id, bool closed=true);
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bool setClosedInternal(bool close) override;
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// LCN turnouts not saved to EEPROM.
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//void save() override { }
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//static Turnout *load(struct TurnoutData *turnoutData) {
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void print(Print *stream) override;
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};
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#endif
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