dnet.h

关于devicenet的源代码。micorchip公司的

/*****************************************************************************
 *
 * Microchip DeviceNet Stack (DeviceNet Object Header)
 *
 *****************************************************************************
 * FileName:        dnet.h
 * Dependencies:    
 * Processor:       PIC18F with CAN
 * Compiler:       	C18 02.10.02 or higher
 * Linker:          MPLINK 03.20.01 or higher
 * Company:         Microchip Technology Incorporated
 *
 * Software License Agreement
 *
 * The software supplied herewith by Microchip Technology Incorporated
 * (the "Company") is intended and supplied to you, the Company's
 * customer, for use solely and exclusively with products manufactured
 * by the Company. 
 *
 * The software is owned by the Company and/or its supplier, and is 
 * protected under applicable copyright laws. All rights are reserved. 
 * Any use in violation of the foregoing restrictions may subject the 
 * user to criminal sanctions under applicable laws, as well as to 
 * civil liability for the breach of the terms and conditions of this 
 * license.
 *
 * THIS SOFTWARE IS PROVIDED IN AN "AS IS" CONDITION. NO WARRANTIES, 
 * WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED 
 * TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 
 * PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. THE COMPANY SHALL NOT, 
 * IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL OR 
 * CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
 *
 *
 * This file contains the DeviceNet object described in section 5-5 of 
 * volume 1 of the DeviceNet specification.
 *
 * Author               Date        Comment
 *~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 * Ross Fosler			04/03/03	...	
 * 
 *****************************************************************************/






#define		DNET_ATTRIB_MAC_ID				0x01
#define		DNET_ATTRIB_BAUD_RATE			0x02
#define		DNET_ATTRIB_BOI					0x03
#define		DNET_ATTRIB_BO_COUNT			0x04
#define		DNET_ATTRIB_ALLOC_INFO			0x05
#define		DNET_ATTRIB_MAC_SW_CH			0x06
#define		DNET_ATTRIB_BAUD_SW_CH			0x07
#define		DNET_ATTRIB_MAC_SW_VAL			0x08
#define		DNET_ATTRIB_BAUD_SW_VAL			0x09



/*********************************************************************
 * DeviceNet object data structure
 ********************************************************************/
typedef union U_ALLOC
{
	USINT byte;
	struct S_ALLOC_BITS
	{
		unsigned 	expl:1;
		unsigned	poll:1;
		unsigned	strobe:1;
		unsigned	multi:1;
		unsigned	cos:1;
		unsigned	cyclic:1;
		unsigned	acksup:1;
		unsigned	res1:1;
	}bits;
}ALLOC;	


typedef struct _DNET
{
	USINT 	MACID;
	USINT 	BaudRate;
	BOOL	BOI;

	USINT	BusOffCount;

	struct _ALLOC_INFO
	{
		ALLOC	AllocChoice;
		USINT	MasterMACID;
	}AllocInfo;

#if ALLOW_MAC_ID_SW_CH
	BOOL 	MACSwChange;
#endif

#if ALLOW_BAUD_RATE_SW_CH
	BOOL	BaudSwChange;
#endif

#if ALLOW_MAC_ID_SW_VAL
	USINT	MACSwValue;
#endif

#if	ALLOW_BAUD_RATE_SW_VAL
	USINT	BaudSwValue;
#endif
}DNET;




 

				


/*********************************************************************
 * DeviceNet object data structure declared global
 ********************************************************************/
extern DNET uDNet;



unsigned char _DNetAllocNoSupportChk(BYTE choice);


/*********************************************************************
 * Function:        unsigned char DNetExplMsgHandler(void)
 *
 * PreCondition:    The path (aService, aClassID, aInstanceID) must
 *					be loaded prior to using this function. If service
 *					indicates any type of IO then the buffer pointers
 *					must be initialized.
 *
 * Input:       	aHeader, aClassID, aInstanceID, aService
 *					*pOutBuf, *pInBuf, aOutBufDataLen, aInBufDataLen
 *					aOutBufLen, aInBufLen		
 *                  
 * Output:      	aHeader, aService	
 *					*pOutBuf, *pInBuf, aOutBufDataLen, aInBufDataLen
 *				
 *			
 *
 * Side Effects:    
 *
 * Overview:        DeviceNet object explicit messaging handler. This
 *					fucntion is called by the Router object. It decodes
 *					the instance and service and performs the requested
 *					function.  
 *
 * Note:            None
 ********************************************************************/
unsigned char _DNetExplMsgHandler(void);
//unsigned char DNetInit(void);


/*********************************************************************
 * Function:        unsigned char DNetInst0GetAttrib(void)
 *
 * PreCondition:    The path (aService, aClassID, aInstanceID) must
 *					be loaded prior to using this function. If service
 *					indicates any type of IO then the buffer pointers
 *					must be initialized.
 *
 * Input:       	aHeader, aClassID, aInstanceID, aService
 *					*pOutBuf, *pInBuf, aOutBufDataLen, aInBufDataLen
 *					aOutBufLen, aInBufLen		
 *                  
 * Output:      	aHeader, aService	
 *					*pOutBuf, *pInBuf, aOutBufDataLen, aInBufDataLen
 *				
 *			
 *
 * Side Effects:    
 *
 * Overview:        Get attribute service for instance 0.  
 *
 * Note:            None
 ********************************************************************/
unsigned char _DNetInst0GetAttrib(void);


/*********************************************************************
 * Function:        unsigned char DNetInst1GetAttrib(void)
 *
 * PreCondition:    The path (aService, aClassID, aInstanceID) must
 *					be loaded prior to using this function. If service
 *					indicates any type of IO then the buffer pointers
 *					must be initialized.
 *
 * Input:       	aHeader, aClassID, aInstanceID, aService
 *					*pOutBuf, *pInBuf, aOutBufDataLen, aInBufDataLen
 *					aOutBufLen, aInBufLen		
 *                  
 * Output:      	aHeader, aService	
 *					*pOutBuf, *pInBuf, aOutBufDataLen, aInBufDataLen
 *				
 *			
 *
 * Side Effects:    
 *
 * Overview:        Get attribute service for instance 1.  
 *
 * Note:            None
 ********************************************************************/
unsigned char _DNetInst1GetAttrib(void);


/*********************************************************************
 * Function:        unsigned char DNetInst1SetAttrib(void)
 *
 * PreCondition:  	The path (aService, aClassID, aInstanceID) must
 *					be loaded prior to using this function. If service
 *					indicates any type of IO then the buffer pointers
 *					must be initialized.  
 *
 * Input:       	aHeader, aClassID, aInstanceID, aService
 *					*pOutBuf, *pInBuf, aOutBufDataLen, aInBufDataLen
 *					aOutBufLen, aInBufLen		
 *                  
 * Output:      	aHeader, aService	
 *					*pOutBuf, *pInBuf, aOutBufDataLen, aInBufDataLen
 *				
 *			
 *
 * Side Effects:    
 *
 * Overview:        Set attribute service for instance 1.  
 *
 * Note:            None
 ********************************************************************/
unsigned char _DNetInst1SetAttrib(void);


/*********************************************************************
 * Function:        unsigned char DNetAllocateConnection(void)
 *
 * PreCondition:    The path (aService, aClassID, aInstanceID) must
 *					be loaded prior to using this function. If service
 *					indicates any type of IO then the buffer pointers
 *					must be initialized.
 *
 * Input:       	aHeader, aClassID, aInstanceID, aService
 *					*pOutBuf, *pInBuf, aOutBufDataLen, aInBufDataLen
 *					aOutBufLen, aInBufLen		
 *                  
 * Output:      	aHeader, aService	
 *					*pOutBuf, *pInBuf, aOutBufDataLen, aInBufDataLen
 *				
 *			
 *
 * Side Effects:    
 *
 * Overview:        Allocate predefined master/slave connection set.  
 *
 * Note:            None
 ********************************************************************/
unsigned char _DNetAllocateConnection(void);


/*********************************************************************
 * Function:        unsigned char DNetReleaseConnection(void)
 *
 * PreCondition:    The path (aService, aClassID, aInstanceID) must
 *					be loaded prior to using this function. If service
 *					indicates any type of IO then the buffer pointers
 *					must be initialized.
 *
 * Input:       	aHeader, aClassID, aInstanceID, aService
 *					*pOutBuf, *pInBuf, aOutBufDataLen, aInBufDataLen
 *					aOutBufLen, aInBufLen		
 *                  
 * Output:      	aHeader, aService	
 *					*pOutBuf, *pInBuf, aOutBufDataLen, aInBufDataLen
 *				
 *			
 *
 * Side Effects:    
 *
 * Overview:        Release predefined master/slave connections or
 *					the connection set.  
 *
 * Note:            None
 ********************************************************************/
unsigned char _DNetReleaseConnection(void);



unsigned char _DNetCreateConnections(BYTE choice);
void _DNetCloseConnections(BYTE choice);




/*********************************************************************
 * Function:        void DNetSetMACID(USINT macID)
 *			  
 * PreCondition:    
 *
 * Input:    		macID       
 *                  
 * Output:     		none    
 *				
 * Side Effects:  	  
 *
 * Overview:        Writes to the DeviceNet object variable, MACID. 
 *
 * Note:            None
 ********************************************************************/
#define	mDNetSetMACID(macID)				(uDNet.MACID = macID)


/*********************************************************************
 * Function:        void DNetSetBaudRate(USINT baudrate)
 *			  
 * PreCondition:    
 *
 * Input:    		macID       
 *                  
 * Output:     		none    
 *				
 * Side Effects:  	  
 *
 * Overview:        Writes to the DeviceNet object variable, BaudRate. 
 *
 * Note:            None
 ********************************************************************/
#define	mDNetSetBaudRate(baudrate)			(uDNet.BaudRate = baudrate)


/*********************************************************************
 * Function:        void DNetSetBOI(BOOL boi)
 *			  
 * PreCondition:    
 *
 * Input:    		boi       
 *                  
 * Output:     		none    
 *				
 * Side Effects:  	  
 *
 * Overview:        Writes to the DeviceNet object variable, BOI.