nodemcu-firmware/app/include/driver/NmraDcc.h

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//------------------------------------------------------------------------
//
// Model Railroading with Arduino - NmraDcc.h
//
// Copyright (c) 2008 - 2018 Alex Shepherd
//
// This source file is subject of the GNU general public license 2,
// that is available at the world-wide-web at
// http://www.gnu.org/licenses/gpl.txt
//
//------------------------------------------------------------------------
//
// file: NmraDcc.h
// author: Alex Shepherd
// webpage: http://mrrwa.org/
// history: 2008-03-20 Initial Version
// 2011-06-26 Migrated into Arduino library from OpenDCC codebase
// 2014 Added getAddr to NmraDcc Geoff Bunza
// 2015-11-06 Martin Pischky (martin@pischky.de):
// Experimental Version to support 14 speed steps
// and new signature of notifyDccSpeed and notifyDccFunc
// 2017-11-29 Ken West (kgw4449@gmail.com):
// Added method and callback headers.
//
//------------------------------------------------------------------------
//
// purpose: Provide a simplified interface to decode NMRA DCC packets
// and build DCC MutliFunction and Stationary Decoders
//
//------------------------------------------------------------------------
// NodeMCU Lua port by @voborsky
// #define NODE_DEBUG
// #define DCC_DEBUG
// #define DCC_DBGVAR
// Uncomment the following Line to Enable Service Mode CV Programming
#define NMRA_DCC_PROCESS_SERVICEMODE
// Uncomment the following line to Enable MultiFunction Decoder Operations
#define NMRA_DCC_PROCESS_MULTIFUNCTION
// #ifndef NMRADCC_IS_IN
// #define NMRADCC_IS_IN
#define NMRADCC_VERSION 201 // Version 2.0.1
#define MAX_DCC_MESSAGE_LEN 6 // including XOR-Byte
typedef struct
{
uint8_t Size ;
uint8_t PreambleBits ;
uint8_t Data[MAX_DCC_MESSAGE_LEN] ;
} DCC_MSG ;
//--------------------------------------------------------------------------
// This section contains the NMRA Assigned DCC Manufacturer Id Codes that
// are used in projects
//
// This value is to be used for CV8
//--------------------------------------------------------------------------
#define MAN_ID_JMRI 0x12
#define MAN_ID_DIY 0x0D
#define MAN_ID_SILICON_RAILWAY 0x21
//--------------------------------------------------------------------------
// This section contains the Product/Version Id Codes for projects
//
// This value is to be used for CV7
//
// NOTE: Each Product/Version Id Code needs to be UNIQUE for that particular
// the DCC Manufacturer Id Code
//--------------------------------------------------------------------------
// Product/Version Id Codes allocated under: MAN_ID_JMRI
// Product/Version Id Codes allocated under: MAN_ID_DIY
// Standard CV Addresses
#define CV_ACCESSORY_DECODER_ADDRESS_LSB 1
#define CV_ACCESSORY_DECODER_ADDRESS_MSB 9
#define CV_MULTIFUNCTION_PRIMARY_ADDRESS 1
#define CV_MULTIFUNCTION_EXTENDED_ADDRESS_MSB 17
#define CV_MULTIFUNCTION_EXTENDED_ADDRESS_LSB 18
#define CV_VERSION_ID 7
#define CV_MANUFACTURER_ID 8
#define CV_29_CONFIG 29
typedef enum {
CV29_LOCO_DIR = 0b00000001, /** bit 0: Locomotive Direction: "0" = normal, "1" = reversed */
CV29_F0_LOCATION = 0b00000010, /** bit 1: F0 location: "0" = bit 4 in Speed and Direction instructions, "1" = bit 4 in function group one instruction */
CV29_APS = 0b00000100, /** bit 2: Alternate Power Source (APS) "0" = NMRA Digital only, "1" = Alternate power source set by CV12 */
CV29_ADV_ACK = 0b00001000, /** bit 3: ACK, Advanced Acknowledge mode enabled if 1, disabled if 0 */
CV29_SPEED_TABLE_ENABLE = 0b00010000, /** bit 4: STE, Speed Table Enable, "0" = values in CVs 2, 4 and 6, "1" = Custom table selected by CV 25 */
CV29_EXT_ADDRESSING = 0b00100000, /** bit 5: "0" = one byte addressing, "1" = two byte addressing */
CV29_OUTPUT_ADDRESS_MODE = 0b01000000, /** bit 6: "0" = Decoder Address Mode "1" = Output Address Mode */
CV29_ACCESSORY_DECODER = 0b10000000, /** bit 7: "0" = Multi-Function Decoder Mode "1" = Accessory Decoder Mode */
} CV_29_BITS;
typedef enum {
#ifdef NMRA_DCC_ENABLE_14_SPEED_STEP_MODE
SPEED_STEP_14 = 15, /**< ESTOP=0, 1 to 15 */
#endif
SPEED_STEP_28 = 29, /**< ESTOP=0, 1 to 29 */
SPEED_STEP_128 = 127 /**< ESTOP=0, 1 to 127 */
} DCC_SPEED_STEPS;
typedef enum {
DCC_DIR_REV = 0, /** The locomotive to go in the reverse direction */
DCC_DIR_FWD = 1, /** The locomotive should move in the forward direction */
} DCC_DIRECTION;
typedef enum {
DCC_ADDR_SHORT, /** Short address is used. The range is 0 to 127. */
DCC_ADDR_LONG, /** Long Address is used. The range is 1 to 10239 */
} DCC_ADDR_TYPE;
typedef enum
{
FN_0_4 = 1,
FN_5_8,
FN_9_12,
FN_13_20,
FN_21_28,
#ifdef NMRA_DCC_ENABLE_14_SPEED_STEP_MODE
FN_0 /** function light is controlled by base line package (14 speed steps) */
#endif
} FN_GROUP;
#define FN_BIT_00 0x10
#define FN_BIT_01 0x01
#define FN_BIT_02 0x02
#define FN_BIT_03 0x04
#define FN_BIT_04 0x08
#define FN_BIT_05 0x01
#define FN_BIT_06 0x02
#define FN_BIT_07 0x04
#define FN_BIT_08 0x08
#define FN_BIT_09 0x01
#define FN_BIT_10 0x02
#define FN_BIT_11 0x04
#define FN_BIT_12 0x08
#define FN_BIT_13 0x01
#define FN_BIT_14 0x02
#define FN_BIT_15 0x04
#define FN_BIT_16 0x08
#define FN_BIT_17 0x10
#define FN_BIT_18 0x20
#define FN_BIT_19 0x40
#define FN_BIT_20 0x80
#define FN_BIT_21 0x01
#define FN_BIT_22 0x02
#define FN_BIT_23 0x04
#define FN_BIT_24 0x08
#define FN_BIT_25 0x10
#define FN_BIT_26 0x20
#define FN_BIT_27 0x40
#define FN_BIT_28 0x80
#ifdef DCC_DBGVAR
typedef struct countOf_t {
unsigned long Tel;
unsigned long Err;
}countOf_t ;
countOf_t countOf;
#endif
// Flag values to be logically ORed together and passed into the init() method
#define FLAGS_MY_ADDRESS_ONLY 0x01 // Only process DCC Packets with My Address
#define FLAGS_AUTO_FACTORY_DEFAULT 0x02 // Call notifyCVResetFactoryDefault() if CV 7 & 8 == 255
#define FLAGS_SETCV_CALLED 0x10 // only used internally !!
#define FLAGS_OUTPUT_ADDRESS_MODE 0x40 // CV 29/541 bit 6
#define FLAGS_DCC_ACCESSORY_DECODER 0x80 // CV 29/541 bit 7
// Flag Bits that are cloned from CV29 relating the DCC Accessory Decoder
#define FLAGS_CV29_BITS (FLAGS_OUTPUT_ADDRESS_MODE | FLAGS_DCC_ACCESSORY_DECODER)
#define DCC_RESET 1
#define DCC_IDLE 2
#define DCC_SPEED 3
#define DCC_SPEED_RAW 4
#define DCC_FUNC 5
#define DCC_TURNOUT 6
#define DCC_ACCESSORY 7
#define DCC_RAW 8
#define DCC_SERVICEMODE 9
#define CV_VALID 10
#define CV_READ 11
#define CV_WRITE 12
#define CV_RESET 13
void dcc_setup(uint8_t pin, uint8_t ManufacturerId, uint8_t VersionId, uint8_t Flags, uint8_t OpsModeAddressBaseCV );
void dcc_close();
void dcc_init();
/************************************************************************************
Call-back functions
************************************************************************************/
/*+
* notifyDccReset(uint8_t hardReset) Callback for a DCC reset command.
*
* Inputs:
* hardReset - 0 normal reset command.
* 1 hard reset command.
*
* Returns:
* None
*/
extern void notifyDccReset(uint8_t hardReset ) __attribute__ ((weak));
/*+
* notifyDccIdle() Callback for a DCC idle command.
*
* Inputs:
* None
*
* Returns:
* None
*/
extern void notifyDccIdle(void) __attribute__ ((weak));
/*+
* notifyDccSpeed() Callback for a multifunction decoder speed command.
* The received speed and direction are unpacked to separate values.
*
* Inputs:
* Addr - Active decoder address.
* AddrType - DCC_ADDR_SHORT or DCC_ADDR_LONG.
* Speed - Decoder speed. 0 = Emergency stop
* 1 = Regular stop
* 2 to SpeedSteps = Speed step 1 to max.
* Dir - DCC_DIR_REV or DCC_DIR_FWD
* SpeedSteps - Highest speed, SPEED_STEP_14 = 15
* SPEED_STEP_28 = 29
* SPEED_STEP_128 = 127
*
* Returns:
* None
*/
extern void notifyDccSpeed( uint16_t Addr, DCC_ADDR_TYPE AddrType, uint8_t Speed, DCC_DIRECTION Dir, DCC_SPEED_STEPS SpeedSteps ) __attribute__ ((weak));
/*+
* notifyDccSpeedRaw() Callback for a multifunction decoder speed command.
* The value in Raw is the unpacked speed command.
*
* Inputs:
* Addr - Active decoder address.
* AddrType - DCC_ADDR_SHORT or DCC_ADDR_LONG.
* Raw - Raw decoder speed command.
*
* Returns:
* None
*/
extern void notifyDccSpeedRaw( uint16_t Addr, DCC_ADDR_TYPE AddrType, uint8_t Raw) __attribute__ ((weak));
/*+
* notifyDccFunc() Callback for a multifunction decoder function command.
*
* Inputs:
* Addr - Active decoder address.
* AddrType - DCC_ADDR_SHORT or DCC_ADDR_LONG.
* FuncGrp - Function group. FN_0 - 14 speed step headlight function.
* Mask FN_BIT_00.
* FN_0_4 - Functions 0 to 4. Mask FN_BIT_00 - FN_BIT_04
* FN_5_8 - Functions 5 to 8. Mask FN_BIT_05 - FN_BIT_08
* FN_9_12 - Functions 9 to 12. Mask FN_BIT_09 - FN_BIT_12
* FN_13_20 - Functions 13 to 20. Mask FN_BIT_13 - FN_BIT_20
* FN_21_28 - Functions 21 to 28. Mask FN_BIT_21 - FN_BIT_28
* FuncState - Function state. Bitmask where active functions have a 1 at that bit.
* You must & FuncState with the appropriate
* FN_BIT_nn value to isolate a given bit.
*
* Returns:
* None
*/
extern void notifyDccFunc( uint16_t Addr, DCC_ADDR_TYPE AddrType, FN_GROUP FuncGrp, uint8_t FuncState) __attribute__ ((weak));
/*+
* notifyDccAccTurnoutBoard() Board oriented callback for a turnout accessory decoder.
* Most useful when CV29_OUTPUT_ADDRESS_MODE is not set.
* Decoders of this type have 4 paired turnout outputs per board.
* OutputPower is 1 if the power is on, and 0 otherwise.
*
* Inputs:
* BoardAddr - Per board address. Equivalent to CV 1 LSB & CV 9 MSB.
* OutputPair - Output pair number. It has a range of 0 to 3.
* Equivalent to upper 2 bits of the 3 DDD bits in the accessory packet.
* Direction - Turnout direction. It has a value of 0 or 1.
* It is equivalent to bit 0 of the 3 DDD bits in the accessory packet.
* OutputPower - Output On/Off. Equivalent to packet C bit. It has these values:
* 0 - Output pair is off.
* 1 - Output pair is on.
*
* Returns:
* None
*/
extern void notifyDccAccTurnoutBoard( uint16_t BoardAddr, uint8_t OutputPair, uint8_t Direction, uint8_t OutputPower ) __attribute__ ((weak));
/*+
* notifyDccAccTurnoutOutput() Output oriented callback for a turnout accessory decoder.
* Most useful when CV29_OUTPUT_ADDRESS_MODE is not set.
* Decoders of this type have 4 paired turnout outputs per board.
* OutputPower is 1 if the power is on, and 0 otherwise.
*
* Inputs:
* Addr - Per output address. There will be 4 Addr addresses
* per board for a standard accessory decoder with 4 output pairs.
* Direction - Turnout direction. It has a value of 0 or 1.
* Equivalent to bit 0 of the 3 DDD bits in the accessory packet.
* OutputPower - Output On/Off. Equivalent to packet C bit. It has these values:
* 0 - Output is off.
* 1 - Output is on.
*
* Returns:
* None
*/
extern void notifyDccAccTurnoutOutput( uint16_t Addr, uint8_t Direction, uint8_t OutputPower ) __attribute__ ((weak));
/*+
* notifyDccAccBoardAddrSet() Board oriented callback for a turnout accessory decoder.
* This notification is when a new Board Address is set to the
* address of the next DCC Turnout Packet that is received
*
* This is enabled via the setAccDecDCCAddrNextReceived() method above
*
* Inputs:
* BoardAddr - Per board address. Equivalent to CV 1 LSB & CV 9 MSB.
* per board for a standard accessory decoder with 4 output pairs.
*
* Returns:
* None
*/
extern void notifyDccAccBoardAddrSet( uint16_t BoardAddr) __attribute__ ((weak));
/*+
* notifyDccAccOutputAddrSet() Output oriented callback for a turnout accessory decoder.
* This notification is when a new Output Address is set to the
* address of the next DCC Turnout Packet that is received
*
* This is enabled via the setAccDecDCCAddrNextReceived() method above
*
* Inputs:
* Addr - Per output address. There will be 4 Addr addresses
* per board for a standard accessory decoder with 4 output pairs.
*
* Returns:
* None
*/
extern void notifyDccAccOutputAddrSet( uint16_t Addr) __attribute__ ((weak));
/*+
* notifyDccSigOutputState() Callback for a signal aspect accessory decoder.
* Defined in S-9.2.1 as the Extended Accessory Decoder Control Packet.
*
* Inputs:
* Addr - Decoder address.
* State - 6 bit command equivalent to S-9.2.1 00XXXXXX.
*
* Returns:
* None
*/
extern void notifyDccSigOutputState( uint16_t Addr, uint8_t State) __attribute__ ((weak));
/*+
* notifyDccMsg() Raw DCC packet callback.
* Called with raw DCC packet bytes.
*
* Inputs:
* Msg - Pointer to DCC_MSG structure. The values are:
* Msg->Size - Number of Data bytes in the packet.
* Msg->PreambleBits - Number of preamble bits in the packet.
* Msg->Data[] - Array of data bytes in the packet.
*
* Returns:
* None
*/
extern void notifyDccMsg( DCC_MSG * Msg ) __attribute__ ((weak));
/*+
* notifyCVValid() Callback to determine if a given CV is valid.
* This is called when the library needs to determine
* if a CV is valid. Note: If defined, this callback
* MUST determine if a CV is valid and return the
* appropriate value. If this callback is not defined,
* the library will determine validity.
*
* Inputs:
* CV - CV number.
* Writable - 1 for CV writes. 0 for CV reads.
*
* Returns:
* 1 - CV is valid.
* 0 - CV is not valid.
*/
extern uint8_t notifyCVValid( uint16_t CV, uint8_t Writable ) __attribute__ ((weak));
/*+
* notifyCVRead() Callback to read a CV.
* This is called when the library needs to read
* a CV. Note: If defined, this callback
* MUST return the value of the CV.
* If this callback is not defined,
* the library will read the CV from EEPROM.
*
* Inputs:
* CV - CV number.
*
* Returns:
* Value - Value of the CV.
*/
extern uint8_t notifyCVRead( uint16_t CV) __attribute__ ((weak));
/*+
* notifyCVWrite() Callback to write a value to a CV.
* This is called when the library needs to write
* a CV. Note: If defined, this callback
* MUST write the Value to the CV and return the value of the CV.
* If this callback is not defined,
* the library will read the CV from EEPROM.
*
* Inputs:
* CV - CV number.
* Value - Value of the CV.
*
* Returns:
* Value - Value of the CV.
*/
extern uint8_t notifyCVWrite( uint16_t CV, uint8_t Value) __attribute__ ((weak));
/*+
* notifyCVResetFactoryDefault() Called when CVs must be reset.
* This is called when CVs must be reset
* to their factory defaults. This callback
* should write the factory default value of
* relevent CVs using the setCV() method.
* setCV() must not block whens this is called.
* Test with isSetCVReady() prior to calling setCV()
*
* Inputs:
* None
* *
* Returns:
* None
*/
extern void notifyCVResetFactoryDefault(void) __attribute__ ((weak));
/*+
* notifyServiceMode(bool) Called when state of 'inServiceMode' changes
*
* Inputs:
* bool state of inServiceMode
* *
* Returns:
* None
*/
extern void notifyServiceMode(bool) __attribute__ ((weak));
// Deprecated, only for backward compatibility with version 1.4.2.
// Don't use in new designs. These functions may be dropped in future versions
// extern void notifyDccAccState( uint16_t Addr, uint16_t BoardAddr, uint8_t OutputAddr, uint8_t State ) __attribute__ ((weak));
// extern void notifyDccSigState( uint16_t Addr, uint8_t OutputIndex, uint8_t State) __attribute__ ((weak));