mirror of
https://github.com/DCC-EX/CommandStation-EX.git
synced 2024-11-24 00:26:13 +01:00
173 lines
6.9 KiB
C++
173 lines
6.9 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/>.
|
|
*/
|
|
#ifndef DCC_h
|
|
#define DCC_h
|
|
#include <Arduino.h>
|
|
#include "MotorDriver.h"
|
|
#include "MotorDrivers.h"
|
|
#include "FSH.h"
|
|
typedef void (*ACK_CALLBACK)(int result);
|
|
|
|
enum ackOp
|
|
{ // Program opcodes for the ack Manager
|
|
BASELINE, // ensure enough resets sent before starting and obtain baseline current
|
|
W0,
|
|
W1, // issue write bit (0..1) packet
|
|
WB, // issue write byte packet
|
|
VB, // Issue validate Byte packet
|
|
V0, // Issue validate bit=0 packet
|
|
V1, // issue validate bit=1 packlet
|
|
WACK, // wait for ack (or absence of ack)
|
|
ITC1, // If True Callback(1) (if prevous WACK got an ACK)
|
|
ITC0, // If True callback(0);
|
|
ITCB, // If True callback(byte)
|
|
ITCB7, // If True callback(byte &0x7F)
|
|
NAKFAIL, // if false callback(-1)
|
|
FAIL, // callback(-1)
|
|
STARTMERGE, // Clear bit and byte settings ready for merge pass
|
|
MERGE, // Merge previous wack response with byte value and decrement bit number (use for readimng CV bytes)
|
|
SETBIT, // sets bit number to next prog byte
|
|
SETCV, // sets cv number to next prog byte
|
|
SETBYTE, // sets current byte to next prog byte
|
|
SETBYTEH, // sets current byte to word high byte
|
|
SETBYTEL, // sets current byte to word low byte
|
|
STASHLOCOID, // keeps current byte value for later
|
|
COMBINELOCOID, // combines current value with stashed value and returns it
|
|
ITSKIP, // skip to SKIPTARGET if ack true
|
|
SKIPTARGET = 0xFF // jump to target
|
|
};
|
|
|
|
// Allocations with memory implications..!
|
|
// Base system takes approx 900 bytes + 8 per loco. Turnouts, Sensors etc are dynamically created
|
|
#ifdef ARDUINO_AVR_UNO
|
|
const byte MAX_LOCOS = 20;
|
|
#else
|
|
const byte MAX_LOCOS = 50;
|
|
#endif
|
|
|
|
class DCC
|
|
{
|
|
public:
|
|
static void begin(const FSH * motorShieldName, MotorDriver *mainDriver, MotorDriver *progDriver);
|
|
static void loop();
|
|
|
|
// Public DCC API functions
|
|
static void setThrottle(uint16_t cab, uint8_t tSpeed, bool tDirection);
|
|
static uint8_t getThrottleSpeed(int cab);
|
|
static bool getThrottleDirection(int cab);
|
|
static void writeCVByteMain(int cab, int cv, byte bValue);
|
|
static void writeCVBitMain(int cab, int cv, byte bNum, bool bValue);
|
|
static void setFunction(int cab, byte fByte, byte eByte);
|
|
static void setFn(int cab, byte functionNumber, bool on);
|
|
static int changeFn(int cab, byte functionNumber, bool pressed);
|
|
static int getFn(int cab, byte functionNumber);
|
|
static void updateGroupflags(byte &flags, int functionNumber);
|
|
static void setAccessory(int aAdd, byte aNum, bool activate);
|
|
static bool writeTextPacket(byte *b, int nBytes);
|
|
static void setProgTrackSyncMain(bool on); // when true, prog track becomes driveable
|
|
static void setProgTrackBoost(bool on); // when true, special prog track current limit does not apply
|
|
|
|
// ACKable progtrack calls bitresults callback 0,0 or -1, cv returns value or -1
|
|
static void readCV(int cv, ACK_CALLBACK callback, bool blocking = false);
|
|
static void readCVBit(int cv, byte bitNum, ACK_CALLBACK callback, bool blocking = false); // -1 for error
|
|
static void writeCVByte(int cv, byte byteValue, ACK_CALLBACK callback, bool blocking = false);
|
|
static void writeCVBit(int cv, byte bitNum, bool bitValue, ACK_CALLBACK callback, bool blocking = false);
|
|
static void verifyCVByte(int cv, byte byteValue, ACK_CALLBACK callback, bool blocking = false);
|
|
static void verifyCVBit(int cv, byte bitNum, bool bitValue, ACK_CALLBACK callback, bool blocking = false);
|
|
|
|
static void getLocoId(ACK_CALLBACK callback, bool blocking = false);
|
|
static void setLocoId(int id,ACK_CALLBACK callback, bool blocking = false);
|
|
|
|
// Enhanced API functions
|
|
static void forgetLoco(int cab); // removes any speed reminders for this loco
|
|
static void forgetAllLocos(); // removes all speed reminders
|
|
static void displayCabList(Print *stream);
|
|
|
|
static FSH *getMotorShieldName();
|
|
|
|
private:
|
|
struct LOCO
|
|
{
|
|
int loco;
|
|
byte speedCode;
|
|
byte groupFlags;
|
|
unsigned long functions;
|
|
};
|
|
static byte loopStatus;
|
|
static void setThrottle2(uint16_t cab, uint8_t speedCode);
|
|
static void updateLocoReminder(int loco, byte speedCode);
|
|
static void setFunctionInternal(int cab, byte fByte, byte eByte);
|
|
static bool issueReminder(int reg);
|
|
static int nextLoco;
|
|
static FSH *shieldName;
|
|
|
|
static LOCO speedTable[MAX_LOCOS];
|
|
static byte cv1(byte opcode, int cv);
|
|
static byte cv2(int cv);
|
|
static int lookupSpeedTable(int locoId);
|
|
static void issueReminders();
|
|
static void callback(int value);
|
|
|
|
// ACK MANAGER
|
|
static ackOp const *ackManagerProg;
|
|
static byte ackManagerByte;
|
|
static byte ackManagerBitNum;
|
|
static int ackManagerCv;
|
|
static int ackManagerWord;
|
|
static byte ackManagerStash;
|
|
static bool ackReceived;
|
|
static ACK_CALLBACK ackManagerCallback;
|
|
static void ackManagerSetup(int cv, byte bitNumOrbyteValue, ackOp const program[], ACK_CALLBACK callback, bool blocking);
|
|
static void ackManagerSetup(int wordval, ackOp const program[], ACK_CALLBACK callback, bool blocking);
|
|
static void ackManagerLoop(bool blocking);
|
|
static bool checkResets(bool blocking, uint8_t numResets);
|
|
static const int PROG_REPEATS = 8; // repeats of programming commands (some decoders need at least 8 to be reliable)
|
|
|
|
// NMRA codes #
|
|
static const byte SET_SPEED = 0x3f;
|
|
static const byte WRITE_BYTE_MAIN = 0xEC;
|
|
static const byte WRITE_BIT_MAIN = 0xE8;
|
|
static const byte WRITE_BYTE = 0x7C;
|
|
static const byte VERIFY_BYTE = 0x74;
|
|
static const byte BIT_MANIPULATE = 0x78;
|
|
static const byte WRITE_BIT = 0xF0;
|
|
static const byte VERIFY_BIT = 0xE0;
|
|
static const byte BIT_ON = 0x08;
|
|
static const byte BIT_OFF = 0x00;
|
|
};
|
|
|
|
#ifdef ARDUINO_AVR_MEGA // is using Mega 1280, define as Mega 2560 (pinouts and functionality are identical)
|
|
#define ARDUINO_AVR_MEGA2560
|
|
#endif
|
|
|
|
#if defined(ARDUINO_AVR_UNO)
|
|
#define ARDUINO_TYPE "UNO"
|
|
#elif defined(ARDUINO_AVR_NANO)
|
|
#define ARDUINO_TYPE "NANO"
|
|
#elif defined(ARDUINO_AVR_MEGA2560)
|
|
#define ARDUINO_TYPE "MEGA"
|
|
#elif defined(ARDUINO_ARCH_MEGAAVR)
|
|
#define ARDUINO_TYPE "MEGAAVR"
|
|
#else
|
|
#error CANNOT COMPILE - DCC++ EX ONLY WORKS WITH AN ARDUINO UNO, NANO 328, OR ARDUINO MEGA 1280/2560
|
|
#endif
|
|
|
|
|
|
#endif
|