/* $Id: mcl_flid_sl.h,v 1.1.1.1 2003/09/03 12:45:43 chneuman Exp $ */
/*
 *  Copyright (c) 1999-2003 INRIA - Universite Paris 6 - All rights reserved
 *  (main authors: Julien Laboure - julien.laboure@inrialpes.fr)
 *                 Vincent Roca - vincent.roca@inrialpes.fr)
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License
 *  as published by the Free Software Foundation; either version 2
 *  of the License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
 *  USA.
 */

/*
 * This file contains headers for FLID SL congestion control module (Static Layer).
 * See Internet Draft LCC for more informations
 */

#ifndef MCL_FLID_SL_H  /* { */
#define MCL_FLID_SL_H

#ifdef FLIDS /* { */

/*--- flids_hdr_t Type ---*/
/* The FLIDs congestion control header block (32bits -> LCT compliant) */
typedef struct {

#ifdef _BIT_FIELDS_LTOH
	u_int8_t	tsi:7,	/* Time Slot Index (TSI) */
				trigger:1;	/* Increase signal Trigger (T) */
#else
	u_int8_t	trigger:1,
				tsi:7;
#endif

	u_int16_t seqno;	/* packet's Sequence Number (SEQNO) */
	u_int8_t  gn;	/* packet's Group Number (GN) */
} flids_hdr_t;



/*--- flids_cb_t Type ---*/
/* FLIDs control block */
typedef struct {
/* NEW Fields */
	u_int8_t	SessionState; // 1: initial state - 2: working state
	u_int8_t	tsi; /* Warning tsi must only use 7bits */
	long		long_tsi;
	int			tsd;	/* Time Slot Duration (TSD) */

	/* For each layer, value of current sequence number */
	u_int16_t	tx_LayerSeq[MAX_TX_LEVEL];
	u_int8_t	tx_LayerTrig[MAX_TX_LEVEL];

	u_int8_t	rx_LayerState[MAX_TX_LEVEL];// 1: initial state - 2: TIMESLOT init state
											// 3: working state
	u_int8_t	rx_IncreaseTrigger[MAX_TX_LEVEL]; // IncreaseTrigger value
	u_int16_t	rx_WaitFor[MAX_TX_LEVEL]; // next seq number to wait for...
	u_int8_t	rx_DeafPeriod;
	u_int8_t	rx_CongestionDetected;

	/* remaining time_count till next call to FLIDs_TxTimer function */
	mcl_itime_t flids_tx_timer_count;

	/* Deaf Period Duration in multiple of tsd */
	u_int8_t	flids_deaf_period;

}flids_cb_t;



/* For more infos about all these CONSTANTS	*/
/* Refer to the descriptions of the	*/
/* corresponding flids_cb member variables	*/

#define FLIDS_TSD			1000000	/* TimeSlot Duration (should be set to either 0.5, 1.0 or 2.0 sec) */
#define FLIDS_DEAF_PERIOD	3	/* Deaf Period Duration in multiple of FLIDS_TSD */

#endif /* } FLIDS */

#endif /* }  MCL_FLID_SL_H */