i2cserver.h

/*NB_REVISION*/
 
/*NB_COPYRIGHT*/
 
#ifndef _I2CSERVER_H_
#define _I2CSERVER_H_
 
#include <nettypes.h>
 
#define TCP_LISTEN_PORT 23   // Telnet port number
#define FDNET_RX_BUFSIZE 1024
#define MAX_CMD_LEN 1024   // Maximum command buffer length
#define BEGIN_CMD_CHAR '#'
#define END_CMD_CHAR_LF '\n'
#define END_CMD_CHAR_CR '\r'
#define EOT_CHAR 4
#define MENU_CHAR '?'
 
#define BEGIN_CMD_CHARS 1   // represented by '#'
#define END_CMD_CHARS 1     // represented by '\n'
#define CMD_CHARS 2         // represented by the two cmd chars, ex: WA, WB, etc
#define NON_PARAM_CHARS BEGIN_CMD_CHARS + END_CMD_CHARS + CMD_CHARS
#define FDNET_READ_CHARS 1
#define MAX_FDNET_READ_CHARS 8
 
// Character count for each command. Used for verifying the correct input
#define WR_PARAM_CHARS 4   // 2 address chars + 2 data chars
#define WA_PARAM_CHARS 6   // 2 address chars + 2 data chars + 2 length chars
#define WW_PARAM_CHARS 4   // 2 address chars + 2 length chars, need to add data seperately
#define WB_PARAM_CHARS 4   // 2 address chars + 2 data chars
#define RB_PARAM_CHARS 2   // 2 address chars
#define RR_PARAM_CHARS 4   // 2 address chars + 2 length chars
#define SE_PARAM_CHARS 2   // 2 new address chars
#define SV_PARAM_CHARS 2   // 2 new address chars
#define ST_PARAM_CHARS 0   // no parameters required
#define RE_PARAM_CHARS 0   // no parameters required
#define SC_PARAM_CHARS 0   // no parameters required
#define TM_PARAM_CHARS 0   // no parameters required
 
extern const char *statusMsgs[];
 
#ifdef __cplusplus
extern "C"
{
#endif
 
    void checkCmdBuf(char *cmdBuf);
    bool checkCmdLength(char *cmdBuf, int cmdParamChars);
    bool checkEndCmdChar(char *cmdBuf, int nTotalBytesRead, int nBytesRead);
    bool checkEOTChar(int nTotalBytesRead, int &nBytesRead);
    bool checkMenuChar(char *cmdBuf, int nTotalBytesRead, volatile int &nBytesRead);
    void checkRXBuffer(int nTotalBytesRead, int nBytesRead);
    bool checkStartCmdChar(char *cmdBuf, int nTotalBytesRead, int nBytesRead);
    void IPtoString(IPADDR ia, char *s);
    void MainMenu(int fdnet);
    void I2CServerTask(void *pd);
    bool parseTelnetInput(char *cmdBuf, int nTotalBytesRead, int &nBytesRead);
    void printI2CStatusErrorMsg();
    int processCmd(int fdnet, char *cmdBuf);
    unsigned char processI2CAddress(char *cmdBuf, unsigned char *asciiBuf);
    unsigned char processI2CDataByte(char *cmdBuf, unsigned char *asciiBuf);
    bool processI2CReadLength(char *cmdBuf, unsigned char *asciiBuf, unsigned char &length);
    bool processI2CWriteLength(char *cmdBuf, unsigned char *asciiBuf, unsigned char &length);
    unsigned char processWR(int fdnet, char *cmdBuf);
    unsigned char processWA(int fdnet, char *cmdBuf);
    unsigned char processWW(int fdnet, char *cmdBuf);
    unsigned char processWB(int fdnet, char *cmdBuf);
    unsigned char processRB(int fdnet, char *cmdBuf);
    unsigned char processRR(int fdnet, char *cmdBuf);
    unsigned char processSE(int fdnet, char *cmdBuf);
    unsigned char processSV(int fdnet, char *cmdBuf);
    unsigned char processST(int fdnet, char *cmdBuf);
    unsigned char processRE(int fdnet, char *cmdBuf);
    unsigned char processSC(int fdnet, char *cmdBuf);
    void storeCmdChars(char *cmdBuf, int nTotalBytesRead, int nBytesRead);
 
#ifdef __cplusplus
}
#endif
 
#endif   // _TCPSERVER_H_