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1 /* $Id: isdn.h,v 1.2 1996/02/11 02:10:02 fritz Exp fritz $
2 *
3 * Main header for the Linux ISDN subsystem (linklevel).
4 *
5 * Copyright 1994,95,96 by Fritz Elfert (fritz@wuemaus.franken.de)
6 * Copyright 1995,96 by Thinking Objects Software GmbH Wuerzburg
7 * Copyright 1995,96 by Michael Hipp (Michael.Hipp@student.uni-tuebingen.de)
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2, or (at your option)
12 * any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 *
23 * $Log: isdn.h,v $
24 * Revision 1.2 1996/02/11 02:10:02 fritz
25 * Changed IOCTL-names
26 * Added rx_netdev, st_netdev, first_skb, org_hcb, and org_hcu to
27 * Netdevice-local struct.
28 *
29 * Revision 1.1 1996/01/10 20:55:07 fritz
30 * Initial revision
31 *
32 */
33
34 #ifndef isdn_h
35 #define isdn_h
36
37 #include <linux/ioctl.h>
38
39 #define ISDN_TTY_MAJOR 43
40 #define ISDN_TTYAUX_MAJOR 44
41 #define ISDN_MAJOR 45
42
43 /* The minor-devicenumbers for Channel 0 and 1 are used as arguments for
44 * physical Channel-Mapping, so they MUST NOT be changed without changing
45 * the correspondent code in isdn.c
46 */
47
48 #define ISDN_MAX_DRIVERS 16
49 #define ISDN_MAX_CHANNELS 16
50 #define ISDN_MINOR_B 0
51 #define ISDN_MINOR_BMAX (ISDN_MAX_CHANNELS-1)
52 #define ISDN_MINOR_CTRL ISDN_MAX_CHANNELS
53 #define ISDN_MINOR_CTRLMAX (2*ISDN_MAX_CHANNELS-1)
54 #define ISDN_MINOR_PPP (2*ISDN_MAX_CHANNELS)
55 #define ISDN_MINOR_PPPMAX (3*ISDN_MAX_CHANNELS-1)
56 #define ISDN_MINOR_STATUS 128
57
58 /* New ioctl-codes */
59 #define IIOCNETAIF _IO('I',1)
60 #define IIOCNETDIF _IO('I',2)
61 #define IIOCNETSCF _IO('I',3)
62 #define IIOCNETGCF _IO('I',4)
63 #define IIOCNETANM _IO('I',5)
64 #define IIOCNETDNM _IO('I',6)
65 #define IIOCNETGNM _IO('I',7)
66 #define IIOCGETSET _IO('I',8)
67 #define IIOCSETSET _IO('I',9)
68 #define IIOCSETVER _IO('I',10)
69 #define IIOCNETHUP _IO('I',11)
70 #define IIOCSETGST _IO('I',12)
71 #define IIOCSETBRJ _IO('I',13)
72 #define IIOCSIGPRF _IO('I',14)
73 #define IIOCGETPRF _IO('I',15)
74 #define IIOCSETPRF _IO('I',16)
75 #define IIOCGETMAP _IO('I',17)
76 #define IIOCSETMAP _IO('I',18)
77 #define IIOCNETASL _IO('I',19)
78 #define IIOCNETDIL _IO('I',20)
79
80 #define IIOCNETALN _IO('I',32)
81 #define IIOCNETDLN _IO('I',33)
82
83 #define IIOCDBGVAR _IO('I',127)
84
85 #define IIOCDRVCTL _IO('I',128)
86
87 /* Packet encapsulations for net-interfaces */
88 #define ISDN_NET_ENCAP_ETHER 0
89 #define ISDN_NET_ENCAP_RAWIP 1
90 #define ISDN_NET_ENCAP_IPTYP 2
91 #define ISDN_NET_ENCAP_CISCOHDLC 3
92 #define ISDN_NET_ENCAP_SYNCPPP 4
93
94 /* Facility which currently uses an ISDN-channel */
95 #define ISDN_USAGE_NONE 0
96 #define ISDN_USAGE_RAW 1
97 #define ISDN_USAGE_MODEM 2
98 #define ISDN_USAGE_NET 3
99 #define ISDN_USAGE_VOICE 4
100 #define ISDN_USAGE_FAX 5
101 #define ISDN_USAGE_MASK 7 /* Mask to get plain usage */
102 #define ISDN_USAGE_EXCLUSIVE 64 /* This bit is set, if channel is exclusive */
103 #define ISDN_USAGE_OUTGOING 128 /* This bit is set, if channel is outgoing */
104
105 #define ISDN_MODEM_ANZREG 20 /* Number of Medem-Registers */
106 #define ISDN_MSNLEN 20
107
108 typedef struct {
109 char drvid[25];
110 unsigned long arg;
111 } isdn_ioctl_struct;
112
113 typedef struct {
114 unsigned long isdndev;
115 unsigned long atmodem[ISDN_MAX_CHANNELS];
116 unsigned long info[ISDN_MAX_CHANNELS];
117 } debugvar_addr;
118
119 typedef struct {
120 char name[10];
121 char phone[20];
122 int outgoing;
123 } isdn_net_ioctl_phone;
124
125 typedef struct {
126 char name[10]; /* Name of interface */
127 char master[10]; /* Name of Master for Bundling */
128 char slave[10]; /* Name of Slave for Bundling */
129 char eaz[256]; /* EAZ/MSN */
130 char drvid[25]; /* DriverId for Bindings */
131 int secure; /* Flag: Secure */
132 int callback; /* Flag: Callback */
133 int onhtime; /* Hangup-Timeout */
134 int charge; /* Charge-Units */
135 int chargehup; /* Flag: Charge-Hangup */
136 int l2_proto; /* Layer-2 protocol */
137 int l3_proto; /* Layer-3 protocol */
138 int p_encap; /* Encapsulation */
139 int ihup; /* Flag: Hangup-Timeout on incoming line */
140 int exclusive; /* Channel, if bound exclusive */
141 int slavedelay; /* Delay until slave starts up */
142 } isdn_net_ioctl_cfg;
143
144 #ifdef __KERNEL__
145
146 #ifndef STANDALONE
147 #include <linux/config.h>
148 #endif
149 #include <linux/errno.h>
150 #include <linux/fs.h>
151 #include <linux/major.h>
152 #include <asm/segment.h>
153 #include <asm/io.h>
154 #include <linux/kernel.h>
155 #include <linux/signal.h>
156 #include <linux/malloc.h>
157 #include <linux/mm.h>
158 #include <linux/timer.h>
159 #include <linux/wait.h>
160 #include <linux/tty.h>
161 #include <linux/tty_flip.h>
162 #include <linux/serial_reg.h>
163 #include <linux/fcntl.h>
164 #include <linux/types.h>
165 #include <linux/interrupt.h>
166 #include <linux/ip.h>
167 #include <linux/in.h>
168 #include <linux/netdevice.h>
169 #include <linux/etherdevice.h>
170 #include <linux/skbuff.h>
171 #include <linux/tcp.h>
172
173 #ifdef CONFIG_ISDN_PPP
174
175 #ifdef CONFIG_ISDN_PPP_VJ
176 # include "/usr/src/linux/drivers/net/slhc.h"
177 #endif
178
179 #include <linux/ppp_defs.h>
180 #include <linux/if_ppp.h>
181 #include <linux/if_pppvar.h>
182
183 #include <linux/isdn_ppp.h>
184 #endif
185
186 #include <linux/isdnif.h>
187
188 #define ISDN_DRVIOCTL_MASK 0x7f /* Mask for Device-ioctl */
189
190 /* Until now unused */
191 #define ISDN_SERVICE_VOICE 1
192 #define ISDN_SERVICE_AB 1<<1
193 #define ISDN_SERVICE_X21 1<<2
194 #define ISDN_SERVICE_G4 1<<3
195 #define ISDN_SERVICE_BTX 1<<4
196 #define ISDN_SERVICE_DFUE 1<<5
197 #define ISDN_SERVICE_X25 1<<6
198 #define ISDN_SERVICE_TTX 1<<7
199 #define ISDN_SERVICE_MIXED 1<<8
200 #define ISDN_SERVICE_FW 1<<9
201 #define ISDN_SERVICE_GTEL 1<<10
202 #define ISDN_SERVICE_BTXN 1<<11
203 #define ISDN_SERVICE_BTEL 1<<12
204
205 /* Macros checking plain usage */
206 #define USG_NONE(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NONE)
207 #define USG_RAW(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_RAW)
208 #define USG_MODEM(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_MODEM)
209 #define USG_NET(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NET)
210 #define USG_OUTGOING(x) ((x & ISDN_USAGE_OUTGOING)==ISDN_USAGE_OUTGOING)
211
212 /* Timer-delays and scheduling-flags */
213 #define ISDN_TIMER_RES 3 /* Main Timer-Resolution */
214 #define ISDN_TIMER_02SEC (HZ/ISDN_TIMER_RES/5) /* Slow-Timer1 (0.2 sec.) */
215 #define ISDN_TIMER_1SEC (HZ/ISDN_TIMER_RES) /* Slow-Timer2 (1 sec.) */
216 #define ISDN_TIMER_MODEMREAD 1
217 #define ISDN_TIMER_MODEMPLUS 2
218 #define ISDN_TIMER_MODEMRING 4
219 #define ISDN_TIMER_MODEMXMIT 8
220 #define ISDN_TIMER_NETDIAL 16
221 #define ISDN_TIMER_NETHANGUP 32
222 #define ISDN_TIMER_IPPP 64
223 #define ISDN_TIMER_FAST (ISDN_TIMER_MODEMREAD | ISDN_TIMER_MODEMPLUS | \
224 ISDN_TIMER_MODEMXMIT)
225 #define ISDN_TIMER_SLOW (ISDN_TIMER_MODEMRING | ISDN_TIMER_NETHANGUP | \
226 ISDN_TIMER_NETDIAL)
227
228 /* Timeout-Values for isdn_net_dial() */
229 #define ISDN_TIMER_DTIMEOUT10 (10*HZ/(ISDN_TIMER_02SEC*ISDN_TIMER_RES))
230 #define ISDN_TIMER_DTIMEOUT15 (15*HZ/(ISDN_TIMER_02SEC*ISDN_TIMER_RES))
231
232 /* GLOBAL_FLAGS */
233 #define ISDN_GLOBAL_STOPPED 1
234
235 /*=================== Start of ip-over-ISDN stuff =========================*/
236
237 /* Feature- and status-flags for a net-interface */
238 #define ISDN_NET_CONNECTED 0x01 /* Bound to ISDN-Channel */
239 #define ISDN_NET_SECURE 0x02 /* Accept calls from phonelist only */
240 #define ISDN_NET_CALLBACK 0x04 /* callback incoming phonenumber */
241 #define ISDN_NET_CLONE 0x08 /* clone a tmp interface when called */
242 #define ISDN_NET_TMP 0x10 /* tmp interface until getting an IP */
243 #define ISDN_NET_DYNAMIC 0x20 /* this link is dynamically allocted */
244 #define ISDN_NET_MAGIC 0x49344C02 /* for paranoia-checking */
245
246 /* Phone-list-element */
247 typedef struct {
248 void *next;
249 char num[20];
250 } isdn_net_phone;
251
252 /* Local interface-data */
253 typedef struct isdn_net_local_s {
254 ulong magic;
255 char name[10]; /* Name of device */
256 struct enet_statistics stats; /* Ethernet Statistics */
257 int isdn_device; /* Index to isdn-device */
258 int isdn_channel; /* Index to isdn-channel */
259 int ppp_minor; /* PPPD device minor number */
260 int pre_device; /* Preselected isdn-device */
261 int pre_channel; /* Preselected isdn-channel */
262 int exclusive; /* If non-zero idx to reserved chan.*/
263 int flags; /* Connection-flags */
264 int dialstate; /* State for dialing */
265 int dialretry; /* Counter for Dialout-retries */
266 int dialmax; /* Max. Nuber of Dial-retries */
267 char msn[ISDN_MSNLEN]; /* MSNs/EAZs for this interface */
268 int dtimer; /* Timeout-counter for dialing */
269 u_char p_encap; /* Packet encapsulation */
270 /* 0 = Ethernet over ISDN */
271 /* 1 = RAW-IP */
272 /* 2 = IP with type field */
273 u_char l2_proto; /* Layer-2-protocol */
274 /* See ISDN_PROTO_L2..-constants in */
275 /* isdnif.h */
276 /* 0 = X75/LAPB with I-Frames */
277 /* 1 = X75/LAPB with UI-Frames */
278 /* 2 = X75/LAPB with BUI-Frames */
279 /* 3 = HDLC */
280 u_char l3_proto; /* Layer-3-protocol */
281 /* See ISDN_PROTO_L3..-constants in */
282 /* isdnif.h */
283 /* 0 = Transparent */
284 int huptimer; /* Timeout-counter for auto-hangup */
285 int charge; /* Counter for charging units */
286 int chargetime; /* Timer for Charging info */
287 int hupflags; /* Flags for charge-unit-hangup: */
288 /* bit0: chargeint is invalid */
289 /* bit1: Getting charge-interval */
290 /* bit2: Do charge-unit-hangup */
291 int outgoing; /* Flag: outgoing call */
292 int onhtime; /* Time to keep link up */
293 int chargeint; /* Interval between charge-infos */
294 int onum; /* Flag: at least 1 outgoing number */
295 int cps; /* current speed of this interface */
296 int transcount; /* byte-counter for cps-calculation */
297 int sqfull; /* Flag: netdev-queue overloaded */
298 ulong sqfull_stamp; /* Start-Time of overload */
299 ulong slavedelay; /* Dynamic bundling delaytime */
300 struct device *srobin; /* Ptr to Master device for slaves */
301 isdn_net_phone *phone[2]; /* List of remote-phonenumbers */
302 /* phone[0] = Incoming Numbers */
303 /* phone[1] = Outgoing Numbers */
304 isdn_net_phone *dial; /* Pointer to dialed number */
305 struct device *master; /* Ptr to Master device for slaves */
306 struct device *slave; /* Ptr to Slave device for masters */
307 struct isdn_net_local_s *next; /* Ptr to next link in bundle */
308 struct isdn_net_local_s *last; /* Ptr to last link in bundle */
309 struct isdn_net_dev_s *netdev; /* Ptr to netdev */
310 struct sk_buff *first_skb; /* Ptr to skb that triggers dialing */
311 struct sk_buff *sav_skb; /* Ptr to skb, rejected by LL-driver*/
312 /* Ptr to orig. header_cache_bind */
313 void (*org_hcb)(struct hh_cache **, struct device *,
314 unsigned short, __u32);
315 /* Ptr to orig. header_cache_update */
316 void (*org_hcu)(struct hh_cache *, struct device *,
317 unsigned char *);
318 } isdn_net_local;
319
320 #ifdef CONFIG_ISDN_PPP
321 struct ippp_bundle {
322 int mp_mrru; /* unused */
323 struct mpqueue *last; /* currently defined in isdn_net_dev */
324 int min; /* currently calculated 'on the fly' */
325 long next_num; /* we wanna see this seq.-number next */
326 struct sqqueue *sq;
327 int modify:1; /* set to 1 while modifying sqqueue */
328 int bundled:1; /* bundle active ? */
329 };
330 #endif
331
332 /* the interface itself */
333 typedef struct isdn_net_dev_s {
334 isdn_net_local local;
335 isdn_net_local *queue;
336 void *next; /* Pointer to next isdn-interface */
337 struct device dev; /* interface to upper levels */
338 #ifdef CONFIG_ISDN_PPP
339 struct mpqueue *mp_last;
340 struct ippp_bundle ib;
341 #endif
342 } isdn_net_dev;
343
344 /*===================== End of ip-over-ISDN stuff ===========================*/
345
346 /*======================= Start of ISDN-tty stuff ===========================*/
347
348 #define ISDN_ASYNC_MAGIC 0x49344C01 /* for paranoia-checking */
349 #define ISDN_ASYNC_INITIALIZED 0x80000000 /* port was initialized */
350 #define ISDN_ASYNC_CALLOUT_ACTIVE 0x40000000 /* Call out device active */
351 #define ISDN_ASYNC_NORMAL_ACTIVE 0x20000000 /* Normal device active */
352 #define ISDN_ASYNC_CLOSING 0x08000000 /* Serial port is closing */
353 #define ISDN_ASYNC_CTS_FLOW 0x04000000 /* Do CTS flow control */
354 #define ISDN_ASYNC_CHECK_CD 0x02000000 /* i.e., CLOCAL */
355 #define ISDN_ASYNC_HUP_NOTIFY 0x0001 /* Notify tty on hangups/closes */
356 #define ISDN_ASYNC_SESSION_LOCKOUT 0x0100 /* Lock cua opens on session */
357 #define ISDN_ASYNC_PGRP_LOCKOUT 0x0200 /* Lock cua opens on pgrp */
358 #define ISDN_ASYNC_CALLOUT_NOHUP 0x0400 /* No hangup for cui */
359 #define ISDN_ASYNC_SPLIT_TERMIOS 0x0008 /* Sep. termios for dialin/out */
360 #define ISDN_PORT_16550A 4 /* Type of faked Hardware */
361 #define ISDN_SERIAL_XMIT_SIZE 4000 /* Maximum bufsize for write */
362 #define ISDN_SERIAL_TYPE_NORMAL 1 /* tty-type */
363 #define ISDN_SERIAL_TYPE_CALLOUT 2 /* cua-type */
364
365 /* Private data (similar to async_struct in <linux/serial.h>) */
366 typedef struct {
367 int magic;
368 int flags; /* defined in tty.h */
369 int type; /* UART type */
370 struct tty_struct *tty;
371 int x_char; /* xon/xoff character */
372 int close_delay;
373 int MCR; /* Modem control register */
374 int line;
375 int count; /* # of fd on device */
376 int blocked_open; /* # of blocked opens */
377 long session; /* Session of opening process */
378 long pgrp; /* pgrp of opening process */
379 int isdn_driver; /* Index to isdn-driver */
380 int isdn_channel; /* Index to isdn-channel */
381 int drv_index; /* Index to dev->usage */
382 #if FUTURE
383 int send_outstanding;/* # of outstanding send-requests */
384 #endif
385 int xmit_size; /* max. # of chars in xmit_buf */
386 int xmit_count; /* # of chars in xmit_buf */
387 u_char *xmit_buf; /* transmit-buffer */
388 struct termios normal_termios;
389 struct termios callout_termios;
390 struct wait_queue *open_wait;
391 struct wait_queue *close_wait;
392 } modem_info;
393
394 #define ISDN_MODEM_WINSIZE 8
395
396 /* Private data of AT-command-interpreter */
397 typedef struct {
398 u_char profile[ISDN_MODEM_ANZREG]; /* Modem-Regs. Profile 0 */
399 u_char mdmreg[ISDN_MODEM_ANZREG]; /* Modem-Registers */
400 char pmsn[ISDN_MSNLEN]; /* EAZ/MSNs Profile 0 */
401 char msn[ISDN_MSNLEN];/* EAZ/MSN */
402 int mdmcmdl; /* Length of Modem-Commandbuffer */
403 int pluscount; /* Counter for +++ sequence */
404 int lastplus; /* Timestamp of last + */
405 char mdmcmd[255]; /* Modem-Commandbuffer */
406 } atemu;
407
408 /* Descripion of one ISDN-tty */
409 typedef struct {
410 int msr[ISDN_MAX_CHANNELS]; /* Modem-statusregister */
411 int mlr[ISDN_MAX_CHANNELS]; /* Line-statusregister */
412 int refcount; /* Number of opens */
413 int online[ISDN_MAX_CHANNELS]; /* B-Channel is up */
414 int dialing[ISDN_MAX_CHANNELS]; /* Dial in progress */
415 int rcvsched[ISDN_MAX_CHANNELS]; /* Receive needs schedule */
416 int ncarrier[ISDN_MAX_CHANNELS]; /* Output NO CARRIER */
417 struct tty_driver tty_modem; /* tty-device */
418 struct tty_driver cua_modem; /* cua-device */
419 struct tty_struct *modem_table[ISDN_MAX_CHANNELS]; /* ?? copied from Orig */
420 struct termios *modem_termios[ISDN_MAX_CHANNELS];
421 struct termios *modem_termios_locked[ISDN_MAX_CHANNELS];
422 atemu atmodem[ISDN_MAX_CHANNELS]; /* AT-Command-parser */
423 modem_info info[ISDN_MAX_CHANNELS]; /* Private data */
424 } modem;
425
426 /*======================= End of ISDN-tty stuff ============================*/
427
428 /*======================= Start of sync-ppp stuff ==========================*/
429
430
431 #define NUM_RCV_BUFFS 64
432 #define PPP_HARD_HDR_LEN 4
433
434 #define IPPP_OPEN 0x1
435 #define IPPP_CONNECT 0x2
436 #define IPPP_CLOSEWAIT 0x4
437 #define IPPP_NOBLOCK 0x8
438
439 #ifdef CONFIG_ISDN_PPP
440
441 struct sqqueue {
442 struct sqqueue *next;
443 int sqno_start;
444 int sqno_end;
445 struct sk_buff *skb;
446 long timer;
447 };
448
449 struct mpqueue {
450 struct mpqueue *next;
451 struct mpqueue *last;
452 int sqno;
453 struct sk_buff *skb;
454 int BEbyte;
455 unsigned long time;
456 };
457
458 struct ippp_buf_queue {
459 struct ippp_buf_queue *next;
460 struct ippp_buf_queue *last;
461 char *buf; /* NULL here indicates end of queue */
462 int len;
463 };
464
465 struct ippp_struct {
466 struct ippp_struct *next_link;
467 int state;
468 struct ippp_buf_queue rq[NUM_RCV_BUFFS]; /* packet queue for isdn_ppp_read() */
469 struct ippp_buf_queue *first; /* pointer to (current) first packet */
470 struct ippp_buf_queue *last; /* pointer to (current) last used packet in queue */
471 struct wait_queue *wq;
472 struct wait_queue *wq1;
473 struct task_struct *tk;
474 unsigned int mpppcfg;
475 unsigned int pppcfg;
476 unsigned int mru;
477 unsigned int mpmru;
478 unsigned int mpmtu;
479 unsigned int maxcid;
480 isdn_net_local *lp;
481 int unit;
482 long last_link_seqno;
483 long mp_seqno;
484 long range;
485 #ifdef CONFIG_ISDN_PPP_VJ
486 unsigned char *cbuf;
487 struct slcompress *slcomp;
488 #endif
489 };
490
491 #endif
492
493 /*======================== End of sync-ppp stuff ===========================*/
494
495 /*======================= Start of general stuff ===========================*/
496
497 /* Packet-queue-element */
498 typedef struct pqueue {
499 char *next; /* Pointer to next packet */
500 short length; /* Packetlength */
501 short size; /* Allocated size */
502 u_char *rptr; /* Read-pointer for stream-reading */
503 u_char buffer[1]; /* The data (will be alloc'd) */
504 } pqueue;
505
506 typedef struct {
507 char *next;
508 char *private;
509 } infostruct;
510
511 /* Description of hardware-level-driver */
512 typedef struct {
513 ulong flags; /* Flags */
514 int channels; /* Number of channels */
515 int reject_bus; /* Flag: Reject rejected call on bus*/
516 struct wait_queue *st_waitq; /* Wait-Queue for status-read's */
517 int maxbufsize; /* Maximum Buffersize supported */
518 unsigned long pktcount; /* Until now: unused */
519 int running; /* Flag: Protocolcode running */
520 int loaded; /* Flag: Driver loaded */
521 int stavail; /* Chars avail on Status-device */
522 isdn_if *interface; /* Interface to driver */
523 int *rcverr; /* Error-counters for B-Ch.-receive */
524 int *rcvcount; /* Byte-counters for B-Ch.-receive */
525 pqueue **rpqueue; /* Pointers to start of Rcv-Queue */
526 struct wait_queue **rcv_waitq; /* Wait-Queues for B-Channel-Reads */
527 struct wait_queue **snd_waitq; /* Wait-Queue for B-Channel-Send's */
528 char msn2eaz[10][ISDN_MSNLEN]; /* Mapping-Table MSN->EAZ */
529 } driver;
530
531 /* Main driver-data */
532 typedef struct isdn_devt {
533 unsigned short flags; /* Bitmapped Flags: */
534 /* */
535 int drivers; /* Current number of drivers */
536 int channels; /* Current number of channels */
537 int net_verbose; /* Verbose-Flag */
538 int modempoll; /* Flag: tty-read active */
539 int tflags; /* Timer-Flags: */
540 /* see ISDN_TIMER_..defines */
541 int global_flags;
542 infostruct *infochain; /* List of open info-devs. */
543 struct wait_queue *info_waitq; /* Wait-Queue for isdninfo */
544 struct timer_list timer; /* Misc.-function Timer */
545 int chanmap[ISDN_MAX_CHANNELS];/* Map minor->device-channel */
546 int drvmap[ISDN_MAX_CHANNELS]; /* Map minor->driver-index */
547 int usage[ISDN_MAX_CHANNELS]; /* Used by tty/ip/voice */
548 char num[ISDN_MAX_CHANNELS][20];/* Remote number of active ch.*/
549 int m_idx[ISDN_MAX_CHANNELS]; /* Index for mdm.... */
550 driver *drv[ISDN_MAX_DRIVERS]; /* Array of drivers */
551 isdn_net_dev *netdev; /* Linked list of net-if's */
552 char drvid[ISDN_MAX_DRIVERS][20];/* Driver-ID */
553 struct task_struct *profd; /* For iprofd */
554 modem mdm; /* tty-driver-data */
555 isdn_net_dev *rx_netdev[ISDN_MAX_CHANNELS]; /* rx netdev-pointers */
556 isdn_net_dev *st_netdev[ISDN_MAX_CHANNELS]; /* stat netdev-pointers */
557 } isdn_dev;
558
559 extern isdn_dev *dev;
560
561 /* Utility-Macros */
562 #define MIN(a,b) ((a<b)?a:b)
563 #define MAX(a,b) ((a>b)?a:b)
564
565 #endif /* __KERNEL__ */
566 #endif /* isdn_h */
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*/