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1 /* $Id: isdn.h,v 1.3 1996/04/20 16:54:58 fritz Exp $
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 1.3 1996/04/20 16:54:58 fritz
25 * Increased maximum number of channels.
26 * Added some flags for isdn_net to handle callback more reliable.
27 * Fixed delay-definitions to be more accurate.
28 * Misc. typos
29 *
30 * Revision 1.2 1996/02/11 02:10:02 fritz
31 * Changed IOCTL-names
32 * Added rx_netdev, st_netdev, first_skb, org_hcb, and org_hcu to
33 * Netdevice-local struct.
34 *
35 * Revision 1.1 1996/01/10 20:55:07 fritz
36 * Initial revision
37 *
38 */
39
40 #ifndef isdn_h
41 #define isdn_h
42
43 #include <linux/ioctl.h>
44
45 #define ISDN_TTY_MAJOR 43
46 #define ISDN_TTYAUX_MAJOR 44
47 #define ISDN_MAJOR 45
48
49 /* The minor-devicenumbers for Channel 0 and 1 are used as arguments for
50 * physical Channel-Mapping, so they MUST NOT be changed without changing
51 * the correspondent code in isdn.c
52 */
53
54 #define ISDN_MAX_DRIVERS 32
55 #define ISDN_MAX_CHANNELS 64
56 #define ISDN_MINOR_B 0
57 #define ISDN_MINOR_BMAX (ISDN_MAX_CHANNELS-1)
58 #define ISDN_MINOR_CTRL ISDN_MAX_CHANNELS
59 #define ISDN_MINOR_CTRLMAX (2*ISDN_MAX_CHANNELS-1)
60 #define ISDN_MINOR_PPP (2*ISDN_MAX_CHANNELS)
61 #define ISDN_MINOR_PPPMAX (3*ISDN_MAX_CHANNELS-1)
62 #define ISDN_MINOR_STATUS 255
63
64 /* New ioctl-codes */
65 #define IIOCNETAIF _IO('I',1)
66 #define IIOCNETDIF _IO('I',2)
67 #define IIOCNETSCF _IO('I',3)
68 #define IIOCNETGCF _IO('I',4)
69 #define IIOCNETANM _IO('I',5)
70 #define IIOCNETDNM _IO('I',6)
71 #define IIOCNETGNM _IO('I',7)
72 #define IIOCGETSET _IO('I',8)
73 #define IIOCSETSET _IO('I',9)
74 #define IIOCSETVER _IO('I',10)
75 #define IIOCNETHUP _IO('I',11)
76 #define IIOCSETGST _IO('I',12)
77 #define IIOCSETBRJ _IO('I',13)
78 #define IIOCSIGPRF _IO('I',14)
79 #define IIOCGETPRF _IO('I',15)
80 #define IIOCSETPRF _IO('I',16)
81 #define IIOCGETMAP _IO('I',17)
82 #define IIOCSETMAP _IO('I',18)
83 #define IIOCNETASL _IO('I',19)
84 #define IIOCNETDIL _IO('I',20)
85 #define IIOCGETCPS _IO('I',21)
86
87 #define IIOCNETALN _IO('I',32)
88 #define IIOCNETDLN _IO('I',33)
89
90 #define IIOCDBGVAR _IO('I',127)
91
92 #define IIOCDRVCTL _IO('I',128)
93
94 /* Packet encapsulations for net-interfaces */
95 #define ISDN_NET_ENCAP_ETHER 0
96 #define ISDN_NET_ENCAP_RAWIP 1
97 #define ISDN_NET_ENCAP_IPTYP 2
98 #define ISDN_NET_ENCAP_CISCOHDLC 3
99 #define ISDN_NET_ENCAP_SYNCPPP 4
100 #define ISDN_NET_ENCAP_UIHDLC 5
101
102 /* Facility which currently uses an ISDN-channel */
103 #define ISDN_USAGE_NONE 0
104 #define ISDN_USAGE_RAW 1
105 #define ISDN_USAGE_MODEM 2
106 #define ISDN_USAGE_NET 3
107 #define ISDN_USAGE_VOICE 4
108 #define ISDN_USAGE_FAX 5
109 #define ISDN_USAGE_MASK 7 /* Mask to get plain usage */
110 #define ISDN_USAGE_EXCLUSIVE 64 /* This bit is set, if channel is exclusive */
111 #define ISDN_USAGE_OUTGOING 128 /* This bit is set, if channel is outgoing */
112
113 #define ISDN_MODEM_ANZREG 20 /* Number of Modem-Registers */
114 #define ISDN_MSNLEN 20
115
116 typedef struct {
117 char drvid[25];
118 unsigned long arg;
119 } isdn_ioctl_struct;
120
121 typedef struct {
122 unsigned long isdndev;
123 unsigned long atmodem[ISDN_MAX_CHANNELS];
124 unsigned long info[ISDN_MAX_CHANNELS];
125 } debugvar_addr;
126
127 typedef struct {
128 char name[10];
129 char phone[20];
130 int outgoing;
131 } isdn_net_ioctl_phone;
132
133 typedef struct {
134 char name[10]; /* Name of interface */
135 char master[10]; /* Name of Master for Bundling */
136 char slave[10]; /* Name of Slave for Bundling */
137 char eaz[256]; /* EAZ/MSN */
138 char drvid[25]; /* DriverId for Bindings */
139 int onhtime; /* Hangup-Timeout */
140 int charge; /* Charge-Units */
141 int l2_proto; /* Layer-2 protocol */
142 int l3_proto; /* Layer-3 protocol */
143 int p_encap; /* Encapsulation */
144 int exclusive; /* Channel, if bound exclusive */
145 int dialmax; /* Dial Retry-Counter */
146 int slavedelay; /* Delay until slave starts up */
147 int cbdelay; /* Delay before Callback */
148 int chargehup; /* Flag: Charge-Hangup */
149 int ihup; /* Flag: Hangup-Timeout on incoming line */
150 int secure; /* Flag: Secure */
151 int callback; /* Flag: Callback */
152 int cbhup; /* Flag: Reject Call before Callback */
153 } isdn_net_ioctl_cfg;
154
155 #ifdef __KERNEL__
156
157 #ifndef STANDALONE
158 #include <linux/config.h>
159 #endif
160 #include <linux/errno.h>
161 #include <linux/fs.h>
162 #include <linux/major.h>
163 #include <asm/segment.h>
164 #include <asm/io.h>
165 #include <linux/kernel.h>
166 #include <linux/signal.h>
167 #include <linux/malloc.h>
168 #include <linux/mm.h>
169 #include <linux/timer.h>
170 #include <linux/wait.h>
171 #include <linux/tty.h>
172 #include <linux/tty_flip.h>
173 #include <linux/serial_reg.h>
174 #include <linux/fcntl.h>
175 #include <linux/types.h>
176 #include <linux/interrupt.h>
177 #include <linux/ip.h>
178 #include <linux/in.h>
179 #include <linux/netdevice.h>
180 #include <linux/etherdevice.h>
181 #include <linux/skbuff.h>
182 #include <linux/tcp.h>
183
184 #ifdef CONFIG_ISDN_PPP
185
186 #ifdef CONFIG_ISDN_PPP_VJ
187 # include "/usr/src/linux/drivers/net/slhc.h"
188 #endif
189
190 #include <linux/ppp_defs.h>
191 #include <linux/if_ppp.h>
192 #include <linux/if_pppvar.h>
193
194 #include <linux/isdn_ppp.h>
195 #endif
196
197 #include <linux/isdnif.h>
198
199 #define ISDN_DRVIOCTL_MASK 0x7f /* Mask for Device-ioctl */
200
201 /* Until now unused */
202 #define ISDN_SERVICE_VOICE 1
203 #define ISDN_SERVICE_AB 1<<1
204 #define ISDN_SERVICE_X21 1<<2
205 #define ISDN_SERVICE_G4 1<<3
206 #define ISDN_SERVICE_BTX 1<<4
207 #define ISDN_SERVICE_DFUE 1<<5
208 #define ISDN_SERVICE_X25 1<<6
209 #define ISDN_SERVICE_TTX 1<<7
210 #define ISDN_SERVICE_MIXED 1<<8
211 #define ISDN_SERVICE_FW 1<<9
212 #define ISDN_SERVICE_GTEL 1<<10
213 #define ISDN_SERVICE_BTXN 1<<11
214 #define ISDN_SERVICE_BTEL 1<<12
215
216 /* Macros checking plain usage */
217 #define USG_NONE(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NONE)
218 #define USG_RAW(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_RAW)
219 #define USG_MODEM(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_MODEM)
220 #define USG_NET(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NET)
221 #define USG_OUTGOING(x) ((x & ISDN_USAGE_OUTGOING)==ISDN_USAGE_OUTGOING)
222
223 /* Timer-delays and scheduling-flags */
224 #define ISDN_TIMER_RES 3 /* Main Timer-Resolution */
225 #define ISDN_TIMER_02SEC (HZ/(ISDN_TIMER_RES+1)/5) /* Slow-Timer1 .2 sec */
226 #define ISDN_TIMER_1SEC (HZ/(ISDN_TIMER_RES+1)) /* Slow-Timer2 1 sec */
227 #define ISDN_TIMER_MODEMREAD 1
228 #define ISDN_TIMER_MODEMPLUS 2
229 #define ISDN_TIMER_MODEMRING 4
230 #define ISDN_TIMER_MODEMXMIT 8
231 #define ISDN_TIMER_NETDIAL 16
232 #define ISDN_TIMER_NETHANGUP 32
233 #define ISDN_TIMER_IPPP 64
234 #define ISDN_TIMER_FAST (ISDN_TIMER_MODEMREAD | ISDN_TIMER_MODEMPLUS | \
235 ISDN_TIMER_MODEMXMIT)
236 #define ISDN_TIMER_SLOW (ISDN_TIMER_MODEMRING | ISDN_TIMER_NETHANGUP | \
237 ISDN_TIMER_NETDIAL)
238
239 /* Timeout-Values for isdn_net_dial() */
240 #define ISDN_TIMER_DTIMEOUT10 (10*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1)))
241 #define ISDN_TIMER_DTIMEOUT15 (15*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1)))
242
243 /* GLOBAL_FLAGS */
244 #define ISDN_GLOBAL_STOPPED 1
245
246 /*=================== Start of ip-over-ISDN stuff =========================*/
247
248 /* Feature- and status-flags for a net-interface */
249 #define ISDN_NET_CONNECTED 0x01 /* Bound to ISDN-Channel */
250 #define ISDN_NET_SECURE 0x02 /* Accept calls from phonelist only */
251 #define ISDN_NET_CALLBACK 0x04 /* activate callback */
252 #define ISDN_NET_CBHUP 0x08 /* hangup before callback */
253 #define ISDN_NET_CBOUT 0x10 /* remote machine does callback */
254 #if 0
255 /* Unused??? */
256 #define ISDN_NET_CLONE 0x08 /* clone a tmp interface when called */
257 #define ISDN_NET_TMP 0x10 /* tmp interface until getting an IP */
258 #define ISDN_NET_DYNAMIC 0x20 /* this link is dynamically allocated */
259 #endif
260 #define ISDN_NET_MAGIC 0x49344C02 /* for paranoia-checking */
261
262 /* Phone-list-element */
263 typedef struct {
264 void *next;
265 char num[20];
266 } isdn_net_phone;
267
268 /* Local interface-data */
269 typedef struct isdn_net_local_s {
270 ulong magic;
271 char name[10]; /* Name of device */
272 struct enet_statistics stats; /* Ethernet Statistics */
273 int isdn_device; /* Index to isdn-device */
274 int isdn_channel; /* Index to isdn-channel */
275 int ppp_minor; /* PPPD device minor number */
276 int pre_device; /* Preselected isdn-device */
277 int pre_channel; /* Preselected isdn-channel */
278 int exclusive; /* If non-zero idx to reserved chan.*/
279 int flags; /* Connection-flags */
280 int dialretry; /* Counter for Dialout-retries */
281 int dialmax; /* Max. Number of Dial-retries */
282 int cbdelay; /* Delay before Callback starts */
283 int dtimer; /* Timeout-counter for dialing */
284 char msn[ISDN_MSNLEN]; /* MSNs/EAZs for this interface */
285 u_char cbhup; /* Flag: Reject Call before Callback*/
286 u_char dialstate; /* State for dialing */
287 u_char p_encap; /* Packet encapsulation */
288 /* 0 = Ethernet over ISDN */
289 /* 1 = RAW-IP */
290 /* 2 = IP with type field */
291 u_char l2_proto; /* Layer-2-protocol */
292 /* See ISDN_PROTO_L2..-constants in */
293 /* isdnif.h */
294 /* 0 = X75/LAPB with I-Frames */
295 /* 1 = X75/LAPB with UI-Frames */
296 /* 2 = X75/LAPB with BUI-Frames */
297 /* 3 = HDLC */
298 u_char l3_proto; /* Layer-3-protocol */
299 /* See ISDN_PROTO_L3..-constants in */
300 /* isdnif.h */
301 /* 0 = Transparent */
302 int huptimer; /* Timeout-counter for auto-hangup */
303 int charge; /* Counter for charging units */
304 int chargetime; /* Timer for Charging info */
305 int hupflags; /* Flags for charge-unit-hangup: */
306 /* bit0: chargeint is invalid */
307 /* bit1: Getting charge-interval */
308 /* bit2: Do charge-unit-hangup */
309 int outgoing; /* Flag: outgoing call */
310 int onhtime; /* Time to keep link up */
311 int chargeint; /* Interval between charge-infos */
312 int onum; /* Flag: at least 1 outgoing number */
313 int cps; /* current speed of this interface */
314 int transcount; /* byte-counter for cps-calculation */
315 int sqfull; /* Flag: netdev-queue overloaded */
316 ulong sqfull_stamp; /* Start-Time of overload */
317 ulong slavedelay; /* Dynamic bundling delaytime */
318 struct device *srobin; /* Ptr to Master device for slaves */
319 isdn_net_phone *phone[2]; /* List of remote-phonenumbers */
320 /* phone[0] = Incoming Numbers */
321 /* phone[1] = Outgoing Numbers */
322 isdn_net_phone *dial; /* Pointer to dialed number */
323 struct device *master; /* Ptr to Master device for slaves */
324 struct device *slave; /* Ptr to Slave device for masters */
325 struct isdn_net_local_s *next; /* Ptr to next link in bundle */
326 struct isdn_net_local_s *last; /* Ptr to last link in bundle */
327 struct isdn_net_dev_s *netdev; /* Ptr to netdev */
328 struct sk_buff *first_skb; /* Ptr to skb that triggers dialing */
329 struct sk_buff *sav_skb; /* Ptr to skb, rejected by LL-driver*/
330 /* Ptr to orig. header_cache_bind */
331 void (*org_hcb)(struct hh_cache **, struct device *,
332 unsigned short, __u32);
333 /* Ptr to orig. header_cache_update */
334 void (*org_hcu)(struct hh_cache *, struct device *,
335 unsigned char *);
336 } isdn_net_local;
337
338 #ifdef CONFIG_ISDN_PPP
339 struct ippp_bundle {
340 int mp_mrru; /* unused */
341 struct mpqueue *last; /* currently defined in isdn_net_dev */
342 int min; /* currently calculated 'on the fly' */
343 long next_num; /* we wanna see this seq.-number next */
344 struct sqqueue *sq;
345 int modify:1; /* set to 1 while modifying sqqueue */
346 int bundled:1; /* bundle active ? */
347 };
348 #endif
349
350 /* the interface itself */
351 typedef struct isdn_net_dev_s {
352 isdn_net_local local;
353 isdn_net_local *queue;
354 void *next; /* Pointer to next isdn-interface */
355 struct device dev; /* interface to upper levels */
356 #ifdef CONFIG_ISDN_PPP
357 struct mpqueue *mp_last;
358 struct ippp_bundle ib;
359 #endif
360 } isdn_net_dev;
361
362 /*===================== End of ip-over-ISDN stuff ===========================*/
363
364 /*======================= Start of ISDN-tty stuff ===========================*/
365
366 #define ISDN_ASYNC_MAGIC 0x49344C01 /* for paranoia-checking */
367 #define ISDN_ASYNC_INITIALIZED 0x80000000 /* port was initialized */
368 #define ISDN_ASYNC_CALLOUT_ACTIVE 0x40000000 /* Call out device active */
369 #define ISDN_ASYNC_NORMAL_ACTIVE 0x20000000 /* Normal device active */
370 #define ISDN_ASYNC_CLOSING 0x08000000 /* Serial port is closing */
371 #define ISDN_ASYNC_CTS_FLOW 0x04000000 /* Do CTS flow control */
372 #define ISDN_ASYNC_CHECK_CD 0x02000000 /* i.e., CLOCAL */
373 #define ISDN_ASYNC_HUP_NOTIFY 0x0001 /* Notify tty on hangups/closes */
374 #define ISDN_ASYNC_SESSION_LOCKOUT 0x0100 /* Lock cua opens on session */
375 #define ISDN_ASYNC_PGRP_LOCKOUT 0x0200 /* Lock cua opens on pgrp */
376 #define ISDN_ASYNC_CALLOUT_NOHUP 0x0400 /* No hangup for cui */
377 #define ISDN_ASYNC_SPLIT_TERMIOS 0x0008 /* Sep. termios for dialin/out */
378 #define ISDN_PORT_16550A 4 /* Type of faked Hardware */
379 #define ISDN_SERIAL_XMIT_SIZE 4000 /* Maximum bufsize for write */
380 #define ISDN_SERIAL_TYPE_NORMAL 1 /* tty-type */
381 #define ISDN_SERIAL_TYPE_CALLOUT 2 /* cua-type */
382
383 /* Private data (similar to async_struct in <linux/serial.h>) */
384 typedef struct {
385 int magic;
386 int flags; /* defined in tty.h */
387 int type; /* UART type */
388 struct tty_struct *tty;
389 int x_char; /* xon/xoff character */
390 int close_delay;
391 int MCR; /* Modem control register */
392 int line;
393 int count; /* # of fd on device */
394 int blocked_open; /* # of blocked opens */
395 long session; /* Session of opening process */
396 long pgrp; /* pgrp of opening process */
397 int isdn_driver; /* Index to isdn-driver */
398 int isdn_channel; /* Index to isdn-channel */
399 int drv_index; /* Index to dev->usage */
400 #if FUTURE
401 int send_outstanding;/* # of outstanding send-requests */
402 #endif
403 int xmit_size; /* max. # of chars in xmit_buf */
404 int xmit_count; /* # of chars in xmit_buf */
405 u_char *xmit_buf; /* transmit-buffer */
406 struct termios normal_termios;
407 struct termios callout_termios;
408 struct wait_queue *open_wait;
409 struct wait_queue *close_wait;
410 } modem_info;
411
412 #define ISDN_MODEM_WINSIZE 8
413
414 /* Private data of AT-command-interpreter */
415 typedef struct {
416 u_char profile[ISDN_MODEM_ANZREG]; /* Modem-Regs. Profile 0 */
417 u_char mdmreg[ISDN_MODEM_ANZREG]; /* Modem-Registers */
418 char pmsn[ISDN_MSNLEN]; /* EAZ/MSNs Profile 0 */
419 char msn[ISDN_MSNLEN];/* EAZ/MSN */
420 int mdmcmdl; /* Length of Modem-Commandbuffer */
421 int pluscount; /* Counter for +++ sequence */
422 int lastplus; /* Timestamp of last + */
423 char mdmcmd[255]; /* Modem-Commandbuffer */
424 } atemu;
425
426 /* Description of one ISDN-tty */
427 typedef struct {
428 int msr[ISDN_MAX_CHANNELS]; /* Modem-statusregister */
429 int mlr[ISDN_MAX_CHANNELS]; /* Line-statusregister */
430 int refcount; /* Number of opens */
431 int online[ISDN_MAX_CHANNELS]; /* B-Channel is up */
432 int dialing[ISDN_MAX_CHANNELS]; /* Dial in progress */
433 int rcvsched[ISDN_MAX_CHANNELS]; /* Receive needs schedule */
434 int ncarrier[ISDN_MAX_CHANNELS]; /* Output NO CARRIER */
435 struct tty_driver tty_modem; /* tty-device */
436 struct tty_driver cua_modem; /* cua-device */
437 struct tty_struct *modem_table[ISDN_MAX_CHANNELS]; /* ?? copied from Orig */
438 struct termios *modem_termios[ISDN_MAX_CHANNELS];
439 struct termios *modem_termios_locked[ISDN_MAX_CHANNELS];
440 atemu atmodem[ISDN_MAX_CHANNELS]; /* AT-Command-parser */
441 modem_info info[ISDN_MAX_CHANNELS]; /* Private data */
442 } modem;
443
444 /*======================= End of ISDN-tty stuff ============================*/
445
446 /*======================= Start of sync-ppp stuff ==========================*/
447
448
449 #define NUM_RCV_BUFFS 64
450 #define PPP_HARD_HDR_LEN 4
451
452 #define IPPP_OPEN 0x1
453 #define IPPP_CONNECT 0x2
454 #define IPPP_CLOSEWAIT 0x4
455 #define IPPP_NOBLOCK 0x8
456
457 #ifdef CONFIG_ISDN_PPP
458
459 struct sqqueue {
460 struct sqqueue *next;
461 int sqno_start;
462 int sqno_end;
463 struct sk_buff *skb;
464 long timer;
465 };
466
467 struct mpqueue {
468 struct mpqueue *next;
469 struct mpqueue *last;
470 int sqno;
471 struct sk_buff *skb;
472 int BEbyte;
473 unsigned long time;
474 };
475
476 struct ippp_buf_queue {
477 struct ippp_buf_queue *next;
478 struct ippp_buf_queue *last;
479 char *buf; /* NULL here indicates end of queue */
480 int len;
481 };
482
483 struct ippp_struct {
484 struct ippp_struct *next_link;
485 int state;
486 struct ippp_buf_queue rq[NUM_RCV_BUFFS]; /* packet queue for isdn_ppp_read() */
487 struct ippp_buf_queue *first; /* pointer to (current) first packet */
488 struct ippp_buf_queue *last; /* pointer to (current) last used packet in queue */
489 struct wait_queue *wq;
490 struct wait_queue *wq1;
491 struct task_struct *tk;
492 unsigned int mpppcfg;
493 unsigned int pppcfg;
494 unsigned int mru;
495 unsigned int mpmru;
496 unsigned int mpmtu;
497 unsigned int maxcid;
498 isdn_net_local *lp;
499 int unit;
500 long last_link_seqno;
501 long mp_seqno;
502 long range;
503 #ifdef CONFIG_ISDN_PPP_VJ
504 unsigned char *cbuf;
505 struct slcompress *slcomp;
506 #endif
507 };
508
509 #endif
510
511 /*======================== End of sync-ppp stuff ===========================*/
512
513 /*======================= Start of general stuff ===========================*/
514
515 /* Packet-queue-element */
516 typedef struct pqueue {
517 char *next; /* Pointer to next packet */
518 short length; /* Packetlength */
519 short size; /* Allocated size */
520 u_char *rptr; /* Read-pointer for stream-reading */
521 u_char buffer[1]; /* The data (will be alloc'd) */
522 } pqueue;
523
524 typedef struct {
525 char *next;
526 char *private;
527 } infostruct;
528
529 /* Description of hardware-level-driver */
530 typedef struct {
531 ulong flags; /* Flags */
532 int channels; /* Number of channels */
533 int reject_bus; /* Flag: Reject rejected call on bus*/
534 struct wait_queue *st_waitq; /* Wait-Queue for status-read's */
535 int maxbufsize; /* Maximum Buffersize supported */
536 unsigned long pktcount; /* Until now: unused */
537 int running; /* Flag: Protocolcode running */
538 int loaded; /* Flag: Driver loaded */
539 int stavail; /* Chars avail on Status-device */
540 isdn_if *interface; /* Interface to driver */
541 int *rcverr; /* Error-counters for B-Ch.-receive */
542 int *rcvcount; /* Byte-counters for B-Ch.-receive */
543 pqueue **rpqueue; /* Pointers to start of Rcv-Queue */
544 struct wait_queue **rcv_waitq; /* Wait-Queues for B-Channel-Reads */
545 struct wait_queue **snd_waitq; /* Wait-Queue for B-Channel-Send's */
546 char msn2eaz[10][ISDN_MSNLEN]; /* Mapping-Table MSN->EAZ */
547 } driver;
548
549 /* Main driver-data */
550 typedef struct isdn_devt {
551 unsigned short flags; /* Bitmapped Flags: */
552 /* */
553 int drivers; /* Current number of drivers */
554 int channels; /* Current number of channels */
555 int net_verbose; /* Verbose-Flag */
556 int modempoll; /* Flag: tty-read active */
557 int tflags; /* Timer-Flags: */
558 /* see ISDN_TIMER_..defines */
559 int global_flags;
560 infostruct *infochain; /* List of open info-devs. */
561 struct wait_queue *info_waitq; /* Wait-Queue for isdninfo */
562 struct timer_list timer; /* Misc.-function Timer */
563 int chanmap[ISDN_MAX_CHANNELS];/* Map minor->device-channel */
564 int drvmap[ISDN_MAX_CHANNELS]; /* Map minor->driver-index */
565 int usage[ISDN_MAX_CHANNELS]; /* Used by tty/ip/voice */
566 char num[ISDN_MAX_CHANNELS][20];/* Remote number of active ch.*/
567 int m_idx[ISDN_MAX_CHANNELS]; /* Index for mdm.... */
568 driver *drv[ISDN_MAX_DRIVERS]; /* Array of drivers */
569 isdn_net_dev *netdev; /* Linked list of net-if's */
570 char drvid[ISDN_MAX_DRIVERS][20];/* Driver-ID */
571 struct task_struct *profd; /* For iprofd */
572 modem mdm; /* tty-driver-data */
573 isdn_net_dev *rx_netdev[ISDN_MAX_CHANNELS]; /* rx netdev-pointers */
574 isdn_net_dev *st_netdev[ISDN_MAX_CHANNELS]; /* stat netdev-pointers */
575 ulong ibytes[ISDN_MAX_CHANNELS]; /* Statistics incoming bytes */
576 ulong obytes[ISDN_MAX_CHANNELS]; /* Statistics outgoing bytes */
577 } isdn_dev;
578
579 extern isdn_dev *dev;
580
581 /* Utility-Macros */
582 #define MIN(a,b) ((a<b)?a:b)
583 #define MAX(a,b) ((a>b)?a:b)
584
585 #endif /* __KERNEL__ */
586 #endif /* isdn_h */
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*/