drivers/isdn/isdnloop/isdnloop.h

   1 /* $Id: isdnloop.h,v 1.5.6.3 2001/09/23 22:24:56 kai Exp $
   2  *
   3  * Loopback lowlevel module for testing of linklevel.
   4  *
   5  * Copyright 1997 by Fritz Elfert (fritz@isdn4linux.de)
   6  *
   7  * This software may be used and distributed according to the terms
   8  * of the GNU General Public License, incorporated herein by reference.
   9  *
  10  */
  11
  12 #ifndef isdnloop_h
  13 #define isdnloop_h
  14
  15 #define ISDNLOOP_IOCTL_DEBUGVAR  0
  16 #define ISDNLOOP_IOCTL_ADDCARD   1
  17 #define ISDNLOOP_IOCTL_LEASEDCFG 2
  18 #define ISDNLOOP_IOCTL_STARTUP   3
  19
  20 /* Struct for adding new cards */
  21 typedef struct isdnloop_cdef {
  22         char id1[10];
  23 } isdnloop_cdef;
  24
  25 /* Struct for configuring cards */
  26 typedef struct isdnloop_sdef {
  27         int ptype;
  28         char num[3][20];
  29 } isdnloop_sdef;
  30
  31 #if defined(__KERNEL__) || defined(__DEBUGVAR__)
  32
  33 #ifdef __KERNEL__
  34 /* Kernel includes */
  35
  36 #include <linux/errno.h>
  37 #include <linux/fs.h>
  38 #include <linux/major.h>
  39 #include <asm/io.h>
  40 #include <linux/kernel.h>
  41 #include <linux/signal.h>
  42 #include <linux/slab.h>
  43 #include <linux/mm.h>
  44 #include <linux/mman.h>
  45 #include <linux/ioport.h>
  46 #include <linux/timer.h>
  47 #include <linux/wait.h>
  48 #include <linux/isdnif.h>
  49
  50 #endif                          /* __KERNEL__ */
  51
  52 #define ISDNLOOP_FLAGS_B1ACTIVE 1       /* B-Channel-1 is open           */
  53 #define ISDNLOOP_FLAGS_B2ACTIVE 2       /* B-Channel-2 is open           */
  54 #define ISDNLOOP_FLAGS_RUNNING  4       /* Cards driver activated        */
  55 #define ISDNLOOP_FLAGS_RBTIMER  8       /* scheduling of B-Channel-poll  */
  56 #define ISDNLOOP_TIMER_BCREAD 1 /* B-Channel poll-cycle          */
  57 #define ISDNLOOP_TIMER_DCREAD (HZ/2)    /* D-Channel poll-cycle          */
  58 #define ISDNLOOP_TIMER_ALERTWAIT (10 * HZ)      /* Alert timeout                 */
  59 #define ISDNLOOP_MAX_SQUEUE 65536       /* Max. outstanding send-data    */
  60 #define ISDNLOOP_BCH 2          /* channels per card             */
  61
  62 /*
  63  * Per card driver data
  64  */
  65 typedef struct isdnloop_card {
  66         struct isdnloop_card *next;     /* Pointer to next device struct    */
  67         struct isdnloop_card
  68         *rcard[ISDNLOOP_BCH];   /* Pointer to 'remote' card         */
  69         int rch[ISDNLOOP_BCH];  /* 'remote' channel                 */
  70         int myid;               /* Driver-Nr. assigned by linklevel */
  71         int leased;             /* Flag: This Adapter is connected  */
  72         /*       to a leased line           */
  73         int sil[ISDNLOOP_BCH];  /* SI's to listen for               */
  74         char eazlist[ISDNLOOP_BCH][11];
  75         /* EAZ's to listen for              */
  76         char s0num[3][20];      /* 1TR6 base-number or MSN's        */
  77         unsigned short flags;   /* Statusflags                      */
  78         int ptype;              /* Protocol type (1TR6 or Euro)     */
  79         struct timer_list st_timer;     /* Timer for Status-Polls           */
  80         struct timer_list rb_timer;     /* Timer for B-Channel-Polls        */
  81         struct timer_list
  82         c_timer[ISDNLOOP_BCH]; /* Timer for Alerting               */
  83         int l2_proto[ISDNLOOP_BCH];     /* Current layer-2-protocol         */
  84         isdn_if interface;      /* Interface to upper layer         */
  85         int iptr;               /* Index to imsg-buffer             */
  86         char imsg[60];          /* Internal buf for status-parsing  */
  87         int optr;               /* Index to omsg-buffer             */
  88         char omsg[60];          /* Internal buf for cmd-parsing     */
  89         char msg_buf[2048];     /* Buffer for status-messages       */
  90         char *msg_buf_write;    /* Writepointer for statusbuffer    */
  91         char *msg_buf_read;     /* Readpointer for statusbuffer     */
  92         char *msg_buf_end;      /* Pointer to end of statusbuffer   */
  93         int sndcount[ISDNLOOP_BCH];     /* Byte-counters for B-Ch.-send     */
  94         struct sk_buff_head
  95         bqueue[ISDNLOOP_BCH];  /* B-Channel queues                 */
  96         struct sk_buff_head dqueue;     /* D-Channel queue                  */
  97         spinlock_t isdnloop_lock;
  98 } isdnloop_card;
  99
 100 /*
 101  * Main driver data
 102  */
 103 #ifdef __KERNEL__
 104 static isdnloop_card *cards = (isdnloop_card *) 0;
 105 #endif                          /* __KERNEL__ */
 106
 107 /* Utility-Macros */
 108
 109 #define CID (card->interface.id)
 110
 111 #endif                          /* defined(__KERNEL__) || defined(__DEBUGVAR__) */
 112 #endif                          /* isdnloop_h */