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packet.h

/* *  packet.h  *  Packet processing module header file
* */


#define ASCIIPACKETS                    /*uncommented for ascii packets*/

#ifdef ASCIIPACKETS
#define HEADERSIZE 2
#define DELIMITER  0

#define MASKNIB    1 

#define EXT_DELIMITER  2 

#define EXT_MASKNIB    3 

#define TRUE  1
#define FALSE 0
#define SUCCESS 1
#define FAILURE 0

#define DLMIN     'a'
#define DLMAX     'p'
#endif

#ifdef BINPACKETS
#define HEADERSIZE 1
#endif

//#define MAXPDATASIZE 32       /*MRKTYP2 16 bytes data*/

#define MAXPDATASIZE 510    /*MRKTYP2 255 bytes data + extended header information*/

#define MAXPACKETSIZE (MAXPDATASIZE+HEADERSIZE)
#define TRANSFLIP 9+'a'


/*
Data Types
*/
#define INVLTYP     0x00        
#define MRKTYP0     0x01        
#define MRKTYP1     0x02        
#define MRKTYP2     0x03        
#define MRKTYP3     0x04        
#define MRKTYP4     0x05        
#define MRKTYP5         0x06        
#define MRKTYP6     0x07        

/* Packet headers transmitted from the coprocessor*/
/* (The digit is in the upper nibble of the header that is rxed)*/
#define EXTCMD      0       // extended cmd protocol 
#define ADBLK0      1       // a/d block 0 (channels 0-15)
#define ADBLK1      2       // a/d block 1 (channels 16-23
#define PRTIN0      3       // digital port block 0
#define CAN     4       // CAN message
#define KEYPAD      5       // Keypad header
#define DAQ     6       // DAQ header
#define PRTOUT      7       // digital port block 0 out(Rxed by coprocessor)
#define PWMCON      8       // pwm config
/* PWMCON- PWM configuration header*/

#define PRTCFG0     9       //digital port block 0 configuration
#define LONG_EXT    10      //LCD header
#define SERIAL      11      //Serial Header
#define IRDA        12      //IRDA header
#define ADREQ0      13      //AD request block 0
#define ADREQ1      14      //AD request block 1
#define DREQ        15      //digital port req

/* extended commands */

#define EXTNULCMD   16
#define SOFTINFO    17
#define COUNTER     18      //counter read request
#define COUNTERD    19      //counter data or config
#define ICNOTIFY    20      //zero count notification
#define CANCFG      21      //can configuration
#define SERCFG      22      //Serial configuration
#define LCDROWS     23      //change number of LCD rows     
//#define RELAY     24      //relay header
#define LED     25      //LED header
#define TCAPS       26      //test caps
#define BEEPER      27      //beeper
#define LCD             29      //standard LCD
#define VFP     30      //vfp header


//long protocol headers start
#define LPHEADERS   VFP


//translations for the e12
#define RS232DATA       IRDA
#define RS422DATA       SERIAL
#define SER232                  RS232DATA
#define SER422                  RS422DATA

#define VERSIONINFO             SOFTINFO

/*delimiter, uncommenting this means delimiter exists*/
//#define DELIM          ","              // packet delimeter(ascii packets only)
#define NOPACKET        -1              // no packet available error
#define PARSEERROR      -2              // parse error

/* headers are unsigned bytes(chars) */
typedef unsigned char PcpkHeader;
typedef struct PcpkPacket PcpkPacket;

struct PcpkPacket {
unsigned char type; 
unsigned char format; 
unsigned char maskcnt; 
unsigned char datasize; 
unsigned int datanum; 
unsigned char extended; 
unsigned char mult; 
unsigned char data[MAXPACKETSIZE];
};



/*Make an array of 16 elements of CONST for header decoding */





static const PcpkHeader hdrTbl[32] = { MRKTYP5,MRKTYP3,MRKTYP3,MRKTYP0
                      ,MRKTYP2,MRKTYP2,MRKTYP1,MRKTYP0
                      ,MRKTYP1,MRKTYP0,MRKTYP6,MRKTYP2
                      ,MRKTYP2,MRKTYP4,MRKTYP4,MRKTYP4
                      ,INVLTYP,MRKTYP2,MRKTYP3,MRKTYP1
                      ,MRKTYP1,MRKTYP1,MRKTYP1,MRKTYP3
                      ,MRKTYP1,MRKTYP0,MRKTYP2,MRKTYP3
                      ,MRKTYP2,MRKTYP2,MRKTYP2,INVLTYP };
                


 



#define TRANS(head) (asciihead(head))

#define EXT_TRANS(head) (head + 0x20)



#define PTYPE(headr) (headr >> 4)  
#define FORMAT(Type) (hdrTbl[Type])



#define MASK(headr) (headr & 0x0f)

 




#ifndef LIBCOMP
extern PcpkHeader PcpkParseHeader(char *, PcpkPacket *);
extern int PcpkParseData(char *, PcpkPacket *);
extern char *PcpkPackGen(__u8 device,__u8 maskcnt,void *data);
#endif


//#define GEN_DEBUG

#undef GENDEBUG
#ifdef GEN_DEBUG
#define GENDEBUG(fmt, args...) printf(fmt, ## args)
#else 
#define GENDEBUG(fmt, args...) 
#endif

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