// gfambrtuslv_priv.h :
//

#if !defined(AGD_GFAMBRTUSLV_PRIV_H__E4B2991E_8ADE_482B_94E1_530CEB7E6595__INCLUDED_)
#define AGD_GFAMBRTUSLV_PRIV_H__E4B2991E_8ADE_482B_94E1_530CEB7E6595__INCLUDED_

#ifdef __cplusplus
extern "C" {
#endif	//	__cplusplus

/////////////////////////////////////////////////////////////////////////////
// gfambrtuslv_priv.h - Declarations:

/////////////////////////////////////////////////////////////////////////////

typedef struct _GFA_MODBUS_RTU_SLV_DIAGNOSIS
{
	uint64_t nBusMsgCount;	// Total bus message count
	uint64_t nSlvMsgCount;	// Total slave message count
	uint32_t nCrcErrCount;	// CRC errors
	uint32_t nExcErrCount;	// Exception errors
}GFA_MODBUS_RTU_SLV_DIAGNOSIS, *LPGFA_MODBUS_RTU_SLV_DIAGNOSIS;
typedef const GFA_MODBUS_RTU_SLV_DIAGNOSIS *LPCGFA_MODBUS_RTU_SLV_DIAGNOSIS;

/////////////////////////////////////////////////////////////////////////////

typedef struct _GFA_MODBUS_RTU_SLAVE
{
	uint8_t slaveID;
	uint8_t newSlaveID;
	uint16_t nSubFunc;
	HFIFO hFifoRX;
	HFIFO hFifoTX;
	size_t nCbToRead;
	size_t nCbToWrite;
	size_t nDataPtr;
	int nMaxReEnterSTM;
	bool bCRCOk;
	GFA_MODBUS_RTU_SLV_STATES state;
	GFA_MODBUS_RTU_SLV_STATES oldstate;
	GFA_MODBUS_REGISTER regMap;
	GFA_MODBUS_SLAVE_APP_INTERFACE appItf;
	GFA_MODBUS_RTU_SLV_DIAGNOSIS diag;
	MODBUS_RTU_ADU adu;
}GFA_MODBUS_RTU_SLAVE, *LPGFA_MODBUS_RTU_SLAVE;
typedef const GFA_MODBUS_RTU_SLAVE *LPCGFA_MODBUS_RTU_SLAVE;

/////////////////////////////////////////////////////////////////////////////
// Modbus request handling functions

size_t		GfaModbusRequestGetDataInfoLength(LPCGFA_MODBUS_RTU_SLAVE pSlv);
size_t		GfaModbusRequestGetDataPayloadLength(LPCGFA_MODBUS_RTU_SLAVE pSlv);
bool		GfaModbusRequestFunctionKnown(uint8_t func);
bool		GfaModbusRequestSubFunctionKnown(uint16_t subfunc);
size_t		GfaModbusRequestReadRegisters(uint8_t func, LPGFA_MODBUS_REGISTER pRegMap, LPGFA_MODBUS_SLAVE_APP_INTERFACE pAppItf, void *pBuf, uint8_t *pnCbWritten);
size_t		GfaModbusRequestWriteRegisters(uint8_t func, LPGFA_MODBUS_REGISTER pRegMap, LPGFA_MODBUS_SLAVE_APP_INTERFACE pAppItf, void *pBuf, uint8_t *pnCbWritten);
size_t		GfaModbusRequestWriteSingleRegister(uint8_t func, LPGFA_MODBUS_REGISTER pRegMap, LPGFA_MODBUS_SLAVE_APP_INTERFACE pAppItf, void *pBuf, uint8_t *pnCbWritten);
size_t		GfaModbusRequestDiagnostic(LPGFA_MODBUS_RTU_SLAVE pSlv, uint8_t *pnCbWritten);
size_t		GfaModbusRequestCreateExceptionResponse(LPMODBUS_RTU_PDU pPdu, uint8_t nExceptionCode);
bool		GfaModbusRequestHandler(LPGFA_MODBUS_RTU_SLAVE pSlv, size_t *pnCbData, bool *pbIsException);

/////////////////////////////////////////////////////////////////////////////
#ifdef __cplusplus
}
#endif	//	__cplusplus
#endif	//	!defined(AGD_GFAMBRTUSLV_PRIV_H__E4B2991E_8ADE_482B_94E1_530CEB7E6595__INCLUDED_)