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 */
113
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