LTX_adaptSDI.c File Reference

LTX protocol adapter for CPU to SDI communications. More...

#include <string.h>
#include <CCSDS/CCSDS_pkt.h>
#include <ITC/ITC_apidefs.h>
#include <ITC/ITC_pubdefs.h>
#include <LCBD/LATP.h>
#include <LCS/LCS_msgs.h>
#include <MSG/MSG_pubdefs.h>
#include <LCS_prvdefs.h>

Functions
unsigned int	LTX_protocolSDI (LTX_Engine *txe, unsigned int siz)
	Form the protocol header for one packet of a CPU/SDI transaction.
unsigned int	LTX_startSDI2 (LTX_Engine *txe)
	Start a protocol 2 CPU to SDI transaction.
Variables
unsigned short	seqSDI [ITC_L_APID_SDI]
	CCSDS sequence counters for science data interface APIDs.

---

Detailed Description

LTX protocol adapter for CPU to SDI communications.

CVS $Id: LTX_adaptSDI.c,v 1.5 2011/03/28 22:49:57 apw Exp $

Author:

A.P.Waite

---

Function Documentation

unsigned int LTX_protocolSDI	(	LTX_Engine *	txe,
		unsigned int	siz
	)

Form the protocol header for one packet of a CPU/SDI transaction.

Parameters:

	txe	(in) LTX transmit engine
	siz	(in) Size (bytes) of packet payload

Return values:

cel

The number of cells (16 byte objects) needed to send the message

References _LCS_ContextSDI::aid, _LCS_ContextSDI::apid, _LTX_Engine::beg, _LCS_ContextSDI::beg, _LCS_HeaderSDI::ctx, _LTX_Engine::end, _LCS_ContextSDI::end, _LTX_Sync::have, _LTX_Engine::hdr, _LTX_Sync::key, LTX_M_SDI_BEG, LTX_M_SDI_END, LTX_M_SDI_SEQ, LTX_sendSync(), _LTX_Sync::next, _LCS_ProtocolSDI::pad, _LCS_HeaderSDI::prt, _LCS_Header::sdi, _LCS_ProtocolSDI::seq, _LCS_ProtocolSDI::siz, _LTX_Engine::snc, _LCS_ProtocolSDI::tim, and _LTX_Sync::want.

unsigned int LTX_startSDI2

(

LTX_Engine *

txe

)

Start a protocol 2 CPU to SDI transaction.

Parameters:

txe

(in) LTX transmit engine

Return values:

LCS_SUCCESS

Success

References _LCS_ContextSDI::aid, _LCS_ContextSDI::apid, _LCS_ContextSDI::beg, _LCS_HeaderSDI::ctx, _LCS_ContextSDI::end, _LTX_Engine::hdr, LTX_M_SDI_BEG, LTX_M_SDI_END, LTX_sendFirst(), _LTX_Engine::pid, _LTX_Engine::pnid, _LCS_HeaderSDI::prt, _LTX_Engine::qilen, _LTX_Engine::qipay, _LCS_Header::sdi, and _LCS_ProtocolSDI::seq.