ext_transport232.h

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/*
 * File: ext_transport232.h
 *
 * Abstract:
 *  PUBLIC interface for ext_transport232.c.
 *
 *  Raul Murillo, Frank Wornle, December 2002
 *
 */

#ifndef _EXT_TRANSPORT232_H_
#define _EXT_TRANSPORT232_H_


/********************* DO NOT CHANGE BELOW THIS LINE **************************
 *                                                                            *
 * The function prototypes below define the interface between ext_comm and    *
 * ext_custom.  They should not need to be changed.  Only the                 *
 * implementation of these functions in ext_transport.c should need to be     *
 * modified.                                                                  *
 *                                                                            *
 ******************************************************************************/



/* communication buffers (host), input and output */
#define COMBUFSIZE		2048	// increase this value, if a block diagram has many tunable parameters
//#define COMBUFSIZE		8192	// e. g. 'shower.c'


/*
 * Export the user data as an 'opaque' or 'incomplete' data type.  ext_comm
 * may reference it (i.e., pass pointers to it, but it can not dereference
 * the pointer).
 */

typedef struct UserData_tag {
    
	HANDLE		hCom;						// serial interface handle

    char_T		TelType;					// detected telegram type: 0, MSG, DAT or USR
	boolean_T	MsgTelIntercepted;			// TRUE indicates the availability of an intercepted message telegram 
	boolean_T	DataTelIntercepted;			// TRUE indicates the availability of an intercepted (log) data telegram 
	boolean_T	UsrTelIntercepted;			// TRUE indicates the availability of an intercepted user telegram 
	boolean_T	ExtDisconnectConfirmed;		// flag for 'ExtDisconnectConfirmed received (8 0 0 0 5 0 0 0)

    uint16_T	port;
	uint32_T	baudrate;
} UserData;


/* ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ */
/* ----------------------------------------------------------------- */
/* moved from within transport232.c to make it visible to ext_comm.c */
/* ----------------------------------------------------------------- */



/*
 * Define the transport interface.
 */
extern boolean_T ExtTargetTelPending(
    ExternalSim		*ES,
    boolean_T       *pending,
    long int        timeOutSecs,
    long int        timeOutUSecs);

extern boolean_T ExtGetTargetMsg(
    ExternalSim		*ES,
    const int       nBytesToGet,
    int             *nBytesGot,
    char            *dst);

extern boolean_T ExtGetTargetData(
    ExternalSim		*ES,
    const int       nBytesToGet,
    int             *nBytesGot,
    char            *dst);

extern boolean_T ExtSetTargetMsg(
    const ExternalSim *ES,
    const int         nBytesToSet,
    const char        *src,
    int               *nBytesSet);

extern void ExtCloseConnection(ExternalSim *ES);

extern void ExtOpenConnection(ExternalSim *ES);

extern UserData *ExtUserDataCreate();

extern void ExtUserDataDestroy(UserData *userData);

extern void ExtProcessArgs(
    ExternalSim   *ES,
    int           nrhs,
    const mxArray *prhs[]);

#endif /* _EXT_TRANSPORT232_H_ */