/* * libpri: An implementation of Primary Rate ISDN * * Written by Mark Spencer <markster@linux-support.net> * * Copyright (C) 2001, Linux Support Services, Inc. * All Rights Reserved. * * 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., 675 Mass Ave, Cambridge, MA 02139, USA.  * */ #ifndef _PRI_INTERNAL_H#define _PRI_INTERNAL_H#include <sys/time.h>struct pri_sched {	struct timeval when;	void (*callback)(void *data);	void *data;};struct q921_frame;enum q931_state;enum q931_mode;/* No more than 128 scheduled events */#define MAX_SCHED 128struct pri {	int fd;				/* File descriptor for D-Channel */	struct pri *subchannel;	/* Sub-channel if appropriate */	struct pri *master;		/* Master channel if appropriate */	struct pri_sched pri_sched[MAX_SCHED];	/* Scheduled events */	int debug;			/* Debug stuff */	int state;			/* State of D-channel */	int switchtype;		/* Switch type */	int nsf;		/* Network-Specific Facility (if any) */	int localtype;		/* Local network type (unknown, network, cpe) */	int remotetype;		/* Remote network type (unknown, network, cpe) */	int sapi;	int tei;	int protodisc;		/* Q.921 State */	int q921_state;		int window;			/* Max window size */	int windowlen;		/* Fullness of window */	int v_s;			/* Next N(S) for transmission */	int v_a;			/* Last acknowledged frame */	int v_r;			/* Next frame expected to be received */	int v_na;			/* What we've told our peer we've acknowledged */	int solicitfbit;	/* Have we sent an I or S frame with the F-bit set? */	int retrans;		/* Retransmissions */	int sentrej;		/* Are we in reject state */		int cref;			/* Next call reference value */		int busy;			/* Peer is busy */	/* Various timers */	int sabme_timer;	/* SABME retransmit */	int t203_timer;		/* Max idle time */	int t200_timer;		/* T-200 retransmission timer */		/* Used by scheduler */	struct timeval tv;	int schedev;	pri_event ev;		/* Static event thingy */		/* Q.921 Re-transmission queue */	struct q921_frame *txqueue;		/* Q.931 calls */	q931_call **callpool;	q931_call *localpool;	/* do we do overlap dialing */	int overlapdial;#ifdef LIBPRI_COUNTERS	/* q921/q931 packet counters */	unsigned int q921_txcount;	unsigned int q921_rxcount;	unsigned int q931_txcount;	unsigned int q931_rxcount;#endif};struct pri_sr {	int transmode;	int channel;	int exclusive;	int nonisdn;	char *caller;	int callerplan;	char *callername;	int callerpres;	char *called;	int calledplan;	int userl1;	int numcomplete;};/* Internal switch types */#define PRI_SWITCH_GR303_EOC_PATH	10#define PRI_SWITCH_GR303_TMC_SWITCHING	11extern int pri_schedule_event(struct pri *pri, int ms, void (*function)(void *data), void *data);extern pri_event *pri_schedule_run(struct pri *pri);extern void pri_schedule_del(struct pri *pri, int ev);extern pri_event *pri_mkerror(struct pri *pri, char *errstr);extern void pri_message(char *fmt, ...);extern void pri_error(char *fmt, ...);#endif