mirror of
https://github.com/DCC-EX/CommandStation-EX.git
synced 2024-11-27 01:56:14 +01:00
644cb29a3a
Function issueReminders was taking around 1700us to complete. It has been refactored to optimise calculations and reduce the amount of the loco table that needs to be scanned each time. It now takes typically under 50us to execute.
134 lines
4.5 KiB
C++
134 lines
4.5 KiB
C++
/*
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* © 2021 Mike S
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* © 2021 Fred Decker
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* © 2021 Herb Morton
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* © 2020-2021 Harald Barth
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* © 2020-2021 Chris Harlow
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* All rights reserved.
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*
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* This file is part of Asbelos DCC API
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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 DCC_h
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#define DCC_h
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#include <Arduino.h>
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#include "MotorDriver.h"
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#include "MotorDrivers.h"
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#include "FSH.h"
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#include "defines.h"
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#ifndef HIGHEST_SHORT_ADDR
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#define HIGHEST_SHORT_ADDR 127
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#else
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#if HIGHEST_SHORT_ADDR > 127
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#error short addr greater than 127 does not make sense
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#endif
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#endif
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#include "DCCACK.h"
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const uint16_t LONG_ADDR_MARKER = 0x4000;
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// Allocations with memory implications..!
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// Base system takes approx 900 bytes + 8 per loco. Turnouts, Sensors etc are dynamically created
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#if defined(HAS_ENOUGH_MEMORY)
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const byte MAX_LOCOS = 50;
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#else
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const byte MAX_LOCOS = 30;
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#endif
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class DCC
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{
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public:
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static void begin(const FSH * motorShieldName);
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static void loop();
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// Public DCC API functions
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static void setThrottle(uint16_t cab, uint8_t tSpeed, bool tDirection);
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static int8_t getThrottleSpeed(int cab);
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static uint8_t getThrottleSpeedByte(int cab);
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static bool getThrottleDirection(int cab);
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static void writeCVByteMain(int cab, int cv, byte bValue);
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static void writeCVBitMain(int cab, int cv, byte bNum, bool bValue);
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static void setFunction(int cab, byte fByte, byte eByte);
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static bool setFn(int cab, int16_t functionNumber, bool on);
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static void changeFn(int cab, int16_t functionNumber);
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static int getFn(int cab, int16_t functionNumber);
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static uint32_t getFunctionMap(int cab);
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static void updateGroupflags(byte &flags, int16_t functionNumber);
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static void setAccessory(int address, byte port, bool gate, byte onoff = 2);
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static bool writeTextPacket(byte *b, int nBytes);
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// ACKable progtrack calls bitresults callback 0,0 or -1, cv returns value or -1
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static void readCV(int16_t cv, ACK_CALLBACK callback);
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static void readCVBit(int16_t cv, byte bitNum, ACK_CALLBACK callback); // -1 for error
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static void writeCVByte(int16_t cv, byte byteValue, ACK_CALLBACK callback);
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static void writeCVBit(int16_t cv, byte bitNum, bool bitValue, ACK_CALLBACK callback);
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static void verifyCVByte(int16_t cv, byte byteValue, ACK_CALLBACK callback);
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static void verifyCVBit(int16_t cv, byte bitNum, bool bitValue, ACK_CALLBACK callback);
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static void getLocoId(ACK_CALLBACK callback);
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static void setLocoId(int id,ACK_CALLBACK callback);
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// Enhanced API functions
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static void forgetLoco(int cab); // removes any speed reminders for this loco
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static void forgetAllLocos(); // removes all speed reminders
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static void displayCabList(Print *stream);
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static FSH *getMotorShieldName();
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static inline void setGlobalSpeedsteps(byte s) {
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globalSpeedsteps = s;
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};
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struct LOCO
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{
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int loco;
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byte speedCode;
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byte groupFlags;
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unsigned long functions;
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};
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static LOCO speedTable[MAX_LOCOS];
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static int lookupSpeedTable(int locoId, bool autoCreate=true);
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static byte cv1(byte opcode, int cv);
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static byte cv2(int cv);
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private:
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static byte loopStatus;
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static void setThrottle2(uint16_t cab, uint8_t speedCode);
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static void updateLocoReminder(int loco, byte speedCode);
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static void setFunctionInternal(int cab, byte fByte, byte eByte);
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static bool issueReminder(int reg);
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static int lastLocoReminder;
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static int highestUsedReg;
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static FSH *shieldName;
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static byte globalSpeedsteps;
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static void issueReminders();
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static void callback(int value);
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// NMRA codes #
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static const byte SET_SPEED = 0x3f;
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static const byte WRITE_BYTE_MAIN = 0xEC;
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static const byte WRITE_BIT_MAIN = 0xE8;
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static const byte WRITE_BYTE = 0x7C;
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static const byte VERIFY_BYTE = 0x74;
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static const byte BIT_MANIPULATE = 0x78;
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static const byte WRITE_BIT = 0xF0;
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static const byte VERIFY_BIT = 0xE0;
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static const byte BIT_ON = 0x08;
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static const byte BIT_OFF = 0x00;
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};
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#endif
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