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*
* Loopback lowlevel module for testing of linklevel.
*
* Copyright 1997 by Fritz Elfert (fritz@isdn4linux.de)
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*
*/
#ifndef isdnloop_h
#define isdnloop_h
#define ISDNLOOP_IOCTL_DEBUGVAR 0
#define ISDNLOOP_IOCTL_ADDCARD 1
#define ISDNLOOP_IOCTL_LEASEDCFG 2
#define ISDNLOOP_IOCTL_STARTUP 3
/* Struct for adding new cards */
typedef struct isdnloop_cdef {
char id1[10];
} isdnloop_cdef;
/* Struct for configuring cards */
typedef struct isdnloop_sdef {
int ptype;
char num[3][20];
} isdnloop_sdef;
#if defined(__KERNEL__) || defined(__DEBUGVAR__)
#ifdef __KERNEL__
/* Kernel includes */
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/major.h>
#include <asm/io.h>
#include <linux/kernel.h>
#include <linux/signal.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/mman.h>
#include <linux/ioport.h>
#include <linux/timer.h>
#include <linux/wait.h>
#include <linux/isdnif.h>
#endif /* __KERNEL__ */
#define ISDNLOOP_FLAGS_B1ACTIVE 1 /* B-Channel-1 is open */
#define ISDNLOOP_FLAGS_B2ACTIVE 2 /* B-Channel-2 is open */
#define ISDNLOOP_FLAGS_RUNNING 4 /* Cards driver activated */
#define ISDNLOOP_FLAGS_RBTIMER 8 /* scheduling of B-Channel-poll */
#define ISDNLOOP_TIMER_BCREAD 1 /* B-Channel poll-cycle */
#define ISDNLOOP_TIMER_DCREAD (HZ/2) /* D-Channel poll-cycle */
#define ISDNLOOP_TIMER_ALERTWAIT (10*HZ) /* Alert timeout */
#define ISDNLOOP_MAX_SQUEUE 65536 /* Max. outstanding send-data */
#define ISDNLOOP_BCH 2 /* channels per card */
/*
* Per card driver data
*/
typedef struct isdnloop_card {
struct isdnloop_card *next; /* Pointer to next device struct */
struct isdnloop_card
*rcard[ISDNLOOP_BCH]; /* Pointer to 'remote' card */
int rch[ISDNLOOP_BCH]; /* 'remote' channel */
int myid; /* Driver-Nr. assigned by linklevel */
int leased; /* Flag: This Adapter is connected */
/* to a leased line */
int sil[ISDNLOOP_BCH]; /* SI's to listen for */
char eazlist[ISDNLOOP_BCH][11];
/* EAZ's to listen for */
char s0num[3][20]; /* 1TR6 base-number or MSN's */
unsigned short flags; /* Statusflags */
int ptype; /* Protocol type (1TR6 or Euro) */
struct timer_list st_timer; /* Timer for Status-Polls */
struct timer_list rb_timer; /* Timer for B-Channel-Polls */
struct timer_list
c_timer[ISDNLOOP_BCH]; /* Timer for Alerting */
int l2_proto[ISDNLOOP_BCH]; /* Current layer-2-protocol */
isdn_if interface; /* Interface to upper layer */
int iptr; /* Index to imsg-buffer */
char imsg[60]; /* Internal buf for status-parsing */
int optr; /* Index to omsg-buffer */
char omsg[60]; /* Internal buf for cmd-parsing */
char msg_buf[2048]; /* Buffer for status-messages */
char *msg_buf_write; /* Writepointer for statusbuffer */
char *msg_buf_read; /* Readpointer for statusbuffer */
char *msg_buf_end; /* Pointer to end of statusbuffer */
int sndcount[ISDNLOOP_BCH]; /* Byte-counters for B-Ch.-send */
struct sk_buff_head
bqueue[ISDNLOOP_BCH]; /* B-Channel queues */
struct sk_buff_head dqueue; /* D-Channel queue */
spinlock_t isdnloop_lock;
} isdnloop_card;
/*
* Main driver data
*/
#ifdef __KERNEL__
static isdnloop_card *cards = (isdnloop_card *) 0;
#endif /* __KERNEL__ */
/* Utility-Macros */
#define CID (card->interface.id)
#endif /* defined(__KERNEL__) || defined(__DEBUGVAR__) */
#endif /* isdnloop_h */
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