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- /* $Id: isdnloop.h,v 1.5.6.3 2001/09/23 22:24:56 kai Exp $
- *
- * 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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