You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
2.6 KiB
91 lines
2.6 KiB
/*
|
|
* 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 128
|
|
|
|
struct pri {
|
|
int fd; /* File descriptor for D-Channel */
|
|
struct pri_sched pri_sched[MAX_SCHED]; /* Scheduled events */
|
|
int debug; /* Debug stuff */
|
|
int state; /* State of D-channel */
|
|
int switchtype; /* Switch type */
|
|
int localtype; /* Local network type (unknown, network, cpe) */
|
|
int remotetype; /* Remote network type (unknown, network, cpe) */
|
|
|
|
/* Q.921 State */
|
|
int q921_state;
|
|
int window; /* Max window size */
|
|
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 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;
|
|
pri_event ev; /* Static event thingy */
|
|
|
|
/* Q.921 Re-transmission queue */
|
|
struct q921_frame *txqueue;
|
|
|
|
/* Q.931 calls */
|
|
q931_call *calls;
|
|
};
|
|
|
|
extern int pri_schedule_event(struct pri *pri, int ms, void (*function)(void *data), void *data);
|
|
|
|
extern int 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);
|
|
|
|
#endif
|