1 /* $Id: isdnloop.h,v 1.1.4.1 2001/11/20 14:19:37 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/version.h> 37 #include <linux/errno.h> 38 #include <linux/fs.h> 39 #include <linux/major.h> 40 #include <asm/segment.h> 41 #include <asm/io.h> 42 #include <linux/kernel.h> 43 #include <linux/signal.h> 44 #include <linux/slab.h> 45 #include <linux/mm.h> 46 #include <linux/mman.h> 47 #include <linux/ioport.h> 48 #include <linux/timer.h> 49 #include <linux/wait.h> 50 #include <linux/isdnif.h> 51 52 #endif /* __KERNEL__ */ 53 54 #define ISDNLOOP_FLAGS_B1ACTIVE 1 /* B-Channel-1 is open */ 55 #define ISDNLOOP_FLAGS_B2ACTIVE 2 /* B-Channel-2 is open */ 56 #define ISDNLOOP_FLAGS_RUNNING 4 /* Cards driver activated */ 57 #define ISDNLOOP_FLAGS_RBTIMER 8 /* scheduling of B-Channel-poll */ 58 #define ISDNLOOP_TIMER_BCREAD 1 /* B-Channel poll-cycle */ 59 #define ISDNLOOP_TIMER_DCREAD (HZ/2) /* D-Channel poll-cycle */ 60 #define ISDNLOOP_TIMER_ALERTWAIT (10*HZ) /* Alert timeout */ 61 #define ISDNLOOP_MAX_SQUEUE 65536 /* Max. outstanding send-data */ 62 #define ISDNLOOP_BCH 2 /* channels per card */ 63 64 /* 65 * Per card driver data 66 */ 67 typedef struct isdnloop_card { 68 struct isdnloop_card *next; /* Pointer to next device struct */ 69 struct isdnloop_card 70 *rcard[ISDNLOOP_BCH]; /* Pointer to 'remote' card */ 71 int rch[ISDNLOOP_BCH]; /* 'remote' channel */ 72 int myid; /* Driver-Nr. assigned by linklevel */ 73 int leased; /* Flag: This Adapter is connected */ 74 /* to a leased line */ 75 int sil[ISDNLOOP_BCH]; /* SI's to listen for */ 76 char eazlist[ISDNLOOP_BCH][11]; 77 /* EAZ's to listen for */ 78 char s0num[3][20]; /* 1TR6 base-number or MSN's */ 79 unsigned short flags; /* Statusflags */ 80 int ptype; /* Protocol type (1TR6 or Euro) */ 81 struct timer_list st_timer; /* Timer for Status-Polls */ 82 struct timer_list rb_timer; /* Timer for B-Channel-Polls */ 83 struct timer_list 84 c_timer[ISDNLOOP_BCH]; /* Timer for Alerting */ 85 int l2_proto[ISDNLOOP_BCH]; /* Current layer-2-protocol */ 86 isdn_if interface; /* Interface to upper layer */ 87 int iptr; /* Index to imsg-buffer */ 88 char imsg[60]; /* Internal buf for status-parsing */ 89 int optr; /* Index to omsg-buffer */ 90 char omsg[60]; /* Internal buf for cmd-parsing */ 91 char msg_buf[2048]; /* Buffer for status-messages */ 92 char *msg_buf_write; /* Writepointer for statusbuffer */ 93 char *msg_buf_read; /* Readpointer for statusbuffer */ 94 char *msg_buf_end; /* Pointer to end of statusbuffer */ 95 int sndcount[ISDNLOOP_BCH]; /* Byte-counters for B-Ch.-send */ 96 struct sk_buff_head 97 bqueue[ISDNLOOP_BCH]; /* B-Channel queues */ 98 struct sk_buff_head dqueue; /* D-Channel queue */ 99 } isdnloop_card; 100 101 /* 102 * Main driver data 103 */ 104 #ifdef __KERNEL__ 105 static isdnloop_card *cards = (isdnloop_card *) 0; 106 #endif /* __KERNEL__ */ 107 108 /* Utility-Macros */ 109 110 #define CID (card->interface.id) 111 112 #endif /* defined(__KERNEL__) || defined(__DEBUGVAR__) */ 113 #endif /* isdnloop_h */ 114