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1da177e4
LT		 1/* $Id: isdn.h,v 1.125.2.3 2004/02/10 01:07:14 keil Exp $
2 *
3 * Main header for the Linux ISDN subsystem (linklevel).
4 *
5 * Copyright 1994,95,96 by Fritz Elfert (fritz@isdn4linux.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 software may be used and distributed according to the terms
10 * of the GNU General Public License, incorporated herein by reference.
11 *
12 */
13
14#ifndef __ISDN_H__
15#define __ISDN_H__
16
17#include <linux/ioctl.h>
18
1da177e4
LT		 19#define ISDN_MAX_DRIVERS 32
20#define ISDN_MAX_CHANNELS 64
1da177e4
LT		 21
22/* New ioctl-codes */
23#define IIOCNETAIF _IO('I',1)
24#define IIOCNETDIF _IO('I',2)
25#define IIOCNETSCF _IO('I',3)
26#define IIOCNETGCF _IO('I',4)
27#define IIOCNETANM _IO('I',5)
28#define IIOCNETDNM _IO('I',6)
29#define IIOCNETGNM _IO('I',7)
30#define IIOCGETSET _IO('I',8) /* no longer supported */
31#define IIOCSETSET _IO('I',9) /* no longer supported */
32#define IIOCSETVER _IO('I',10)
33#define IIOCNETHUP _IO('I',11)
34#define IIOCSETGST _IO('I',12)
35#define IIOCSETBRJ _IO('I',13)
36#define IIOCSIGPRF _IO('I',14)
37#define IIOCGETPRF _IO('I',15)
38#define IIOCSETPRF _IO('I',16)
39#define IIOCGETMAP _IO('I',17)
40#define IIOCSETMAP _IO('I',18)
41#define IIOCNETASL _IO('I',19)
42#define IIOCNETDIL _IO('I',20)
43#define IIOCGETCPS _IO('I',21)
44#define IIOCGETDVR _IO('I',22)
45#define IIOCNETLCR _IO('I',23) /* dwabc ioctl for LCR from isdnlog */
46#define IIOCNETDWRSET _IO('I',24) /* dwabc ioctl to reset abc-values to default on a net-interface */
47
48#define IIOCNETALN _IO('I',32)
49#define IIOCNETDLN _IO('I',33)
50
51#define IIOCNETGPN _IO('I',34)
52
53#define IIOCDBGVAR _IO('I',127)
54
55#define IIOCDRVCTL _IO('I',128)
56
57/* cisco hdlck device private ioctls */
58#define SIOCGKEEPPERIOD (SIOCDEVPRIVATE + 0)
59#define SIOCSKEEPPERIOD (SIOCDEVPRIVATE + 1)
60#define SIOCGDEBSERINT (SIOCDEVPRIVATE + 2)
61#define SIOCSDEBSERINT (SIOCDEVPRIVATE + 3)
62
63/* Packet encapsulations for net-interfaces */
64#define ISDN_NET_ENCAP_ETHER 0
65#define ISDN_NET_ENCAP_RAWIP 1
66#define ISDN_NET_ENCAP_IPTYP 2
67#define ISDN_NET_ENCAP_CISCOHDLC 3 /* Without SLARP and keepalive */
68#define ISDN_NET_ENCAP_SYNCPPP 4
69#define ISDN_NET_ENCAP_UIHDLC 5
70#define ISDN_NET_ENCAP_CISCOHDLCK 6 /* With SLARP and keepalive */
71#define ISDN_NET_ENCAP_X25IFACE 7 /* Documentation/networking/x25-iface.txt*/
72#define ISDN_NET_ENCAP_MAX_ENCAP ISDN_NET_ENCAP_X25IFACE
73
74/* Facility which currently uses an ISDN-channel */
75#define ISDN_USAGE_NONE 0
76#define ISDN_USAGE_RAW 1
77#define ISDN_USAGE_MODEM 2
78#define ISDN_USAGE_NET 3
79#define ISDN_USAGE_VOICE 4
80#define ISDN_USAGE_FAX 5
81#define ISDN_USAGE_MASK 7 /* Mask to get plain usage */
82#define ISDN_USAGE_DISABLED 32 /* This bit is set, if channel is disabled */
83#define ISDN_USAGE_EXCLUSIVE 64 /* This bit is set, if channel is exclusive */
84#define ISDN_USAGE_OUTGOING 128 /* This bit is set, if channel is outgoing */
85
86#define ISDN_MODEM_NUMREG 24 /* Number of Modem-Registers */
87#define ISDN_LMSNLEN 255 /* Length of tty's Listen-MSN string */
88#define ISDN_CMSGLEN 50 /* Length of CONNECT-Message to add for Modem */
89
90#define ISDN_MSNLEN 32
91#define NET_DV 0x06 /* Data version for isdn_net_ioctl_cfg */
92#define TTY_DV 0x06 /* Data version for iprofd etc. */
93
94#define INF_DV 0x01 /* Data version for /dev/isdninfo */
95
96typedef struct {
97 char drvid[25];
98 unsigned long arg;
99} isdn_ioctl_struct;
100
101typedef struct {
102 char name[10];
103 char phone[ISDN_MSNLEN];
104 int outgoing;
105} isdn_net_ioctl_phone;
106
107typedef struct {
108 char name[10]; /* Name of interface */
109 char master[10]; /* Name of Master for Bundling */
110 char slave[10]; /* Name of Slave for Bundling */
111 char eaz[256]; /* EAZ/MSN */
112 char drvid[25]; /* DriverId for Bindings */
113 int onhtime; /* Hangup-Timeout */
114 int charge; /* Charge-Units */
115 int l2_proto; /* Layer-2 protocol */
116 int l3_proto; /* Layer-3 protocol */
117 int p_encap; /* Encapsulation */
118 int exclusive; /* Channel, if bound exclusive */
119 int dialmax; /* Dial Retry-Counter */
120 int slavedelay; /* Delay until slave starts up */
121 int cbdelay; /* Delay before Callback */
122 int chargehup; /* Flag: Charge-Hangup */
123 int ihup; /* Flag: Hangup-Timeout on incoming line */
124 int secure; /* Flag: Secure */
125 int callback; /* Flag: Callback */
126 int cbhup; /* Flag: Reject Call before Callback */
127 int pppbind; /* ippp device for bindings */
128 int chargeint; /* Use fixed charge interval length */
129 int triggercps; /* BogoCPS needed for triggering slave */
130 int dialtimeout; /* Dial-Timeout */
131 int dialwait; /* Time to wait after failed dial */
132 int dialmode; /* Flag: off / on / auto */
133} isdn_net_ioctl_cfg;
134
135#define ISDN_NET_DIALMODE_MASK 0xC0 /* bits for status */
136#define ISDN_NET_DM_OFF 0x00 /* this interface is stopped */
137#define ISDN_NET_DM_MANUAL 0x40 /* this interface is on (manual) */
138#define ISDN_NET_DM_AUTO 0x80 /* this interface is autodial */
139#define ISDN_NET_DIALMODE(x) ((&(x))->flags & ISDN_NET_DIALMODE_MASK)
140
141#ifdef __KERNEL__
142
1da177e4
LT		 143#include <linux/errno.h>
144#include <linux/fs.h>
145#include <linux/major.h>
1da177e4
LT		 146#include <asm/io.h>
147#include <linux/kernel.h>
148#include <linux/signal.h>
149#include <linux/slab.h>
150#include <linux/timer.h>
151#include <linux/wait.h>
152#include <linux/tty.h>
153#include <linux/tty_flip.h>
154#include <linux/serial_reg.h>
155#include <linux/fcntl.h>
156#include <linux/types.h>
157#include <linux/interrupt.h>
158#include <linux/ip.h>
159#include <linux/in.h>
160#include <linux/netdevice.h>
161#include <linux/etherdevice.h>
162#include <linux/skbuff.h>
163#include <linux/tcp.h>
4e3dfaca 164#include <linux/mutex.h>
1da177e4
LT		 165
166#define ISDN_TTY_MAJOR 43
167#define ISDN_TTYAUX_MAJOR 44
168#define ISDN_MAJOR 45
169
170/* The minor-devicenumbers for Channel 0 and 1 are used as arguments for
171 * physical Channel-Mapping, so they MUST NOT be changed without changing
172 * the correspondent code in isdn.c
173 */
174
175#define ISDN_MINOR_B 0
176#define ISDN_MINOR_BMAX (ISDN_MAX_CHANNELS-1)
177#define ISDN_MINOR_CTRL 64
178#define ISDN_MINOR_CTRLMAX (64 + (ISDN_MAX_CHANNELS-1))
179#define ISDN_MINOR_PPP 128
180#define ISDN_MINOR_PPPMAX (128 + (ISDN_MAX_CHANNELS-1))
181#define ISDN_MINOR_STATUS 255
182
183#ifdef CONFIG_ISDN_PPP
184
185#ifdef CONFIG_ISDN_PPP_VJ
186# include <net/slhc_vj.h>
187#endif
188
189#include <linux/ppp_defs.h>
190#include <linux/if_ppp.h>
191
192#include <linux/isdn_ppp.h>
193#endif
194
195#ifdef CONFIG_ISDN_X25
196# include <linux/concap.h>
197#endif
198
199#include <linux/isdnif.h>
200
201#define ISDN_DRVIOCTL_MASK 0x7f /* Mask for Device-ioctl */
202
203/* Until now unused */
204#define ISDN_SERVICE_VOICE 1
205#define ISDN_SERVICE_AB 1<<1
206#define ISDN_SERVICE_X21 1<<2
207#define ISDN_SERVICE_G4 1<<3
208#define ISDN_SERVICE_BTX 1<<4
209#define ISDN_SERVICE_DFUE 1<<5
210#define ISDN_SERVICE_X25 1<<6
211#define ISDN_SERVICE_TTX 1<<7
212#define ISDN_SERVICE_MIXED 1<<8
213#define ISDN_SERVICE_FW 1<<9
214#define ISDN_SERVICE_GTEL 1<<10
215#define ISDN_SERVICE_BTXN 1<<11
216#define ISDN_SERVICE_BTEL 1<<12
217
218/* Macros checking plain usage */
219#define USG_NONE(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NONE)
220#define USG_RAW(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_RAW)
221#define USG_MODEM(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_MODEM)
222#define USG_VOICE(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_VOICE)
223#define USG_NET(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NET)
224#define USG_FAX(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_FAX)
225#define USG_OUTGOING(x) ((x & ISDN_USAGE_OUTGOING)==ISDN_USAGE_OUTGOING)
226#define USG_MODEMORVOICE(x) (((x & ISDN_USAGE_MASK)==ISDN_USAGE_MODEM) || \
227 ((x & ISDN_USAGE_MASK)==ISDN_USAGE_VOICE) )
228
229/* Timer-delays and scheduling-flags */
230#define ISDN_TIMER_RES 4 /* Main Timer-Resolution */
231#define ISDN_TIMER_02SEC (HZ/ISDN_TIMER_RES/5) /* Slow-Timer1 .2 sec */
232#define ISDN_TIMER_1SEC (HZ/ISDN_TIMER_RES) /* Slow-Timer2 1 sec */
233#define ISDN_TIMER_RINGING 5 /* tty RINGs = ISDN_TIMER_1SEC * this factor */
234#define ISDN_TIMER_KEEPINT 10 /* Cisco-Keepalive = ISDN_TIMER_1SEC * this factor */
235#define ISDN_TIMER_MODEMREAD 1
236#define ISDN_TIMER_MODEMPLUS 2
237#define ISDN_TIMER_MODEMRING 4
238#define ISDN_TIMER_MODEMXMIT 8
239#define ISDN_TIMER_NETDIAL 16
240#define ISDN_TIMER_NETHANGUP 32
241#define ISDN_TIMER_CARRIER 256 /* Wait for Carrier */
242#define ISDN_TIMER_FAST (ISDN_TIMER_MODEMREAD | ISDN_TIMER_MODEMPLUS | \
243 ISDN_TIMER_MODEMXMIT)
244#define ISDN_TIMER_SLOW (ISDN_TIMER_MODEMRING | ISDN_TIMER_NETHANGUP | \
245 ISDN_TIMER_NETDIAL | ISDN_TIMER_CARRIER)
246
247/* Timeout-Values for isdn_net_dial() */
248#define ISDN_TIMER_DTIMEOUT10 (10*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1)))
249#define ISDN_TIMER_DTIMEOUT15 (15*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1)))
250#define ISDN_TIMER_DTIMEOUT60 (60*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1)))
251
252/* GLOBAL_FLAGS */
253#define ISDN_GLOBAL_STOPPED 1
254
255/*=================== Start of ip-over-ISDN stuff =========================*/
256
257/* Feature- and status-flags for a net-interface */
258#define ISDN_NET_CONNECTED 0x01 /* Bound to ISDN-Channel */
259#define ISDN_NET_SECURE 0x02 /* Accept calls from phonelist only */
260#define ISDN_NET_CALLBACK 0x04 /* activate callback */
261#define ISDN_NET_CBHUP 0x08 /* hangup before callback */
262#define ISDN_NET_CBOUT 0x10 /* remote machine does callback */
263
264#define ISDN_NET_MAGIC 0x49344C02 /* for paranoia-checking */
265
266/* Phone-list-element */
267typedef struct {
268 void *next;
269 char num[ISDN_MSNLEN];
270} isdn_net_phone;
271
272/*
273 Principles when extending structures for generic encapsulation protocol
274 ("concap") support:
275 - Stuff which is hardware specific (here i4l-specific) goes in
276 the netdev -> local structure (here: isdn_net_local)
277 - Stuff which is encapsulation protocol specific goes in the structure
278 which holds the linux device structure (here: isdn_net_device)
279*/
280
281/* Local interface-data */
282typedef struct isdn_net_local_s {
283 ulong magic;
1da177e4
LT		 284 struct net_device_stats stats; /* Ethernet Statistics */
285 int isdn_device; /* Index to isdn-device */
286 int isdn_channel; /* Index to isdn-channel */
287 int ppp_slot; /* PPPD device slot number */
288 int pre_device; /* Preselected isdn-device */
289 int pre_channel; /* Preselected isdn-channel */
290 int exclusive; /* If non-zero idx to reserved chan.*/
291 int flags; /* Connection-flags */
292 int dialretry; /* Counter for Dialout-retries */
293 int dialmax; /* Max. Number of Dial-retries */
294 int cbdelay; /* Delay before Callback starts */
295 int dtimer; /* Timeout-counter for dialing */
296 char msn[ISDN_MSNLEN]; /* MSNs/EAZs for this interface */
297 u_char cbhup; /* Flag: Reject Call before Callback*/
298 u_char dialstate; /* State for dialing */
299 u_char p_encap; /* Packet encapsulation */
300 /* 0 = Ethernet over ISDN */
301 /* 1 = RAW-IP */
302 /* 2 = IP with type field */
303 u_char l2_proto; /* Layer-2-protocol */
304 /* See ISDN_PROTO_L2..-constants in */
305 /* isdnif.h */
306 /* 0 = X75/LAPB with I-Frames */
307 /* 1 = X75/LAPB with UI-Frames */
308 /* 2 = X75/LAPB with BUI-Frames */
309 /* 3 = HDLC */
310 u_char l3_proto; /* Layer-3-protocol */
311 /* See ISDN_PROTO_L3..-constants in */
312 /* isdnif.h */
313 /* 0 = Transparent */
314 int huptimer; /* Timeout-counter for auto-hangup */
315 int charge; /* Counter for charging units */
316 ulong chargetime; /* Timer for Charging info */
317 int hupflags; /* Flags for charge-unit-hangup: */
318 /* bit0: chargeint is invalid */
319 /* bit1: Getting charge-interval */
320 /* bit2: Do charge-unit-hangup */
321 /* bit3: Do hangup even on incoming */
322 int outgoing; /* Flag: outgoing call */
323 int onhtime; /* Time to keep link up */
324 int chargeint; /* Interval between charge-infos */
325 int onum; /* Flag: at least 1 outgoing number */
326 int cps; /* current speed of this interface */
327 int transcount; /* byte-counter for cps-calculation */
328 int sqfull; /* Flag: netdev-queue overloaded */
329 ulong sqfull_stamp; /* Start-Time of overload */
330 ulong slavedelay; /* Dynamic bundling delaytime */
331 int triggercps; /* BogoCPS needed for trigger slave */
332 isdn_net_phone *phone[2]; /* List of remote-phonenumbers */
333 /* phone[0] = Incoming Numbers */
334 /* phone[1] = Outgoing Numbers */
335 isdn_net_phone *dial; /* Pointer to dialed number */
336 struct net_device *master; /* Ptr to Master device for slaves */
337 struct net_device *slave; /* Ptr to Slave device for masters */
338 struct isdn_net_local_s *next; /* Ptr to next link in bundle */
339 struct isdn_net_local_s *last; /* Ptr to last link in bundle */
340 struct isdn_net_dev_s *netdev; /* Ptr to netdev */
341 struct sk_buff_head super_tx_queue; /* List of supervisory frames to */
342 /* be transmitted asap */
343 atomic_t frame_cnt; /* number of frames currently */
344 /* queued in HL driver */
345 /* Ptr to orig. hard_header_cache */
346 spinlock_t xmit_lock; /* used to protect the xmit path of */
347 /* a particular channel (including */
348 /* the frame_cnt */
349
1da177e4
LT		 350 int pppbind; /* ippp device for bindings */
351 int dialtimeout; /* How long shall we try on dialing? (jiffies) */
352 int dialwait; /* How long shall we wait after failed attempt? (jiffies) */
353 ulong dialstarted; /* jiffies of first dialing-attempt */
354 ulong dialwait_timer; /* jiffies of earliest next dialing-attempt */
355 int huptimeout; /* How long will the connection be up? (seconds) */
356#ifdef CONFIG_ISDN_X25
357 struct concap_device_ops *dops; /* callbacks used by encapsulator */
358#endif
359 /* use an own struct for that in later versions */
360 ulong cisco_myseq; /* Local keepalive seq. for Cisco */
361 ulong cisco_mineseen; /* returned keepalive seq. from remote */
362 ulong cisco_yourseq; /* Remote keepalive seq. for Cisco */
363 int cisco_keepalive_period; /* keepalive period */
364 ulong cisco_last_slarp_in; /* jiffie of last keepalive packet we received */
365 char cisco_line_state; /* state of line according to keepalive packets */
366 char cisco_debserint; /* debugging flag of cisco hdlc with slarp */
367 struct timer_list cisco_timer;
368 struct work_struct tqueue;
369} isdn_net_local;
370
371/* the interface itself */
372typedef struct isdn_net_dev_s {
373 isdn_net_local *local;
374 isdn_net_local *queue; /* circular list of all bundled
375 channels, which are currently
376 online */
377 spinlock_t queue_lock; /* lock to protect queue */
378 void *next; /* Pointer to next isdn-interface */
d62a38d1 379 struct net_device *dev; /* interface to upper levels */
1da177e4
LT		 380#ifdef CONFIG_ISDN_PPP
381 ippp_bundle * pb; /* pointer to the common bundle structure
382 * with the per-bundle data */
383#endif
384#ifdef CONFIG_ISDN_X25
385 struct concap_proto *cprot; /* connection oriented encapsulation protocol */
386#endif
387
388} isdn_net_dev;
389
390/*===================== End of ip-over-ISDN stuff ===========================*/
391
392/*======================= Start of ISDN-tty stuff ===========================*/
393
394#define ISDN_ASYNC_MAGIC 0x49344C01 /* for paranoia-checking */
395#define ISDN_ASYNC_INITIALIZED 0x80000000 /* port was initialized */
396#define ISDN_ASYNC_CALLOUT_ACTIVE 0x40000000 /* Call out device active */
397#define ISDN_ASYNC_NORMAL_ACTIVE 0x20000000 /* Normal device active */
398#define ISDN_ASYNC_CLOSING 0x08000000 /* Serial port is closing */
399#define ISDN_ASYNC_CTS_FLOW 0x04000000 /* Do CTS flow control */
400#define ISDN_ASYNC_CHECK_CD 0x02000000 /* i.e., CLOCAL */
401#define ISDN_ASYNC_HUP_NOTIFY 0x0001 /* Notify tty on hangups/closes */
402#define ISDN_ASYNC_SESSION_LOCKOUT 0x0100 /* Lock cua opens on session */
403#define ISDN_ASYNC_PGRP_LOCKOUT 0x0200 /* Lock cua opens on pgrp */
404#define ISDN_ASYNC_CALLOUT_NOHUP 0x0400 /* No hangup for cui */
405#define ISDN_ASYNC_SPLIT_TERMIOS 0x0008 /* Sep. termios for dialin/out */
406#define ISDN_SERIAL_XMIT_SIZE 1024 /* Default bufsize for write */
407#define ISDN_SERIAL_XMIT_MAX 4000 /* Maximum bufsize for write */
408#define ISDN_SERIAL_TYPE_NORMAL 1
409#define ISDN_SERIAL_TYPE_CALLOUT 2
410
411#ifdef CONFIG_ISDN_AUDIO
412/* For using sk_buffs with audio we need some private variables
413 * within each sk_buff. For this purpose, we declare a struct here,
414 * and put it always at the private skb->cb data array. A few macros help
415 * accessing the variables.
416 */
417typedef struct _isdn_audio_data {
418 unsigned short dle_count;
419 unsigned char lock;
420} isdn_audio_data_t;
421
422#define ISDN_AUDIO_SKB_DLECOUNT(skb) (((isdn_audio_data_t *)&skb->cb[0])->dle_count)
423#define ISDN_AUDIO_SKB_LOCK(skb) (((isdn_audio_data_t *)&skb->cb[0])->lock)
424#endif
425
426/* Private data of AT-command-interpreter */
427typedef struct atemu {
428 u_char profile[ISDN_MODEM_NUMREG]; /* Modem-Regs. Profile 0 */
429 u_char mdmreg[ISDN_MODEM_NUMREG]; /* Modem-Registers */
430 char pmsn[ISDN_MSNLEN]; /* EAZ/MSNs Profile 0 */
431 char msn[ISDN_MSNLEN]; /* EAZ/MSN */
432 char plmsn[ISDN_LMSNLEN]; /* Listening MSNs Profile 0 */
433 char lmsn[ISDN_LMSNLEN]; /* Listening MSNs */
434 char cpn[ISDN_MSNLEN]; /* CalledPartyNumber on incoming call */
435 char connmsg[ISDN_CMSGLEN]; /* CONNECT-Msg from HL-Driver */
436#ifdef CONFIG_ISDN_AUDIO
437 u_char vpar[10]; /* Voice-parameters */
438 int lastDLE; /* Flag for voice-coding: DLE seen */
439#endif
440 int mdmcmdl; /* Length of Modem-Commandbuffer */
441 int pluscount; /* Counter for +++ sequence */
442 u_long lastplus; /* Timestamp of last + */
443 int carrierwait; /* Seconds of carrier waiting */
444 char mdmcmd[255]; /* Modem-Commandbuffer */
445 unsigned int charge; /* Charge units of current connection */
446} atemu;
447
448/* Private data (similar to async_struct in <linux/serial.h>) */
449typedef struct modem_info {
450 int magic;
451 struct module *owner;
452 int flags; /* defined in tty.h */
453 int x_char; /* xon/xoff character */
454 int mcr; /* Modem control register */
455 int msr; /* Modem status register */
456 int lsr; /* Line status register */
457 int line;
458 int count; /* # of fd on device */
459 int blocked_open; /* # of blocked opens */
460 long session; /* Session of opening process */
461 long pgrp; /* pgrp of opening process */
462 int online; /* 1 = B-Channel is up, drop data */
463 /* 2 = B-Channel is up, deliver d.*/
464 int dialing; /* Dial in progress or ATA */
465 int rcvsched; /* Receive needs schedule */
466 int isdn_driver; /* Index to isdn-driver */
467 int isdn_channel; /* Index to isdn-channel */
468 int drv_index; /* Index to dev->usage */
469 int ncarrier; /* Flag: schedule NO CARRIER */
470 unsigned char last_cause[8]; /* Last cause message */
471 unsigned char last_num[ISDN_MSNLEN];
472 /* Last phone-number */
473 unsigned char last_l2; /* Last layer-2 protocol */
474 unsigned char last_si; /* Last service */
475 unsigned char last_lhup; /* Last hangup local? */
476 unsigned char last_dir; /* Last direction (in or out) */
477 struct timer_list nc_timer; /* Timer for delayed NO CARRIER */
478 int send_outstanding;/* # of outstanding send-requests */
479 int xmit_size; /* max. # of chars in xmit_buf */
480 int xmit_count; /* # of chars in xmit_buf */
481 unsigned char *xmit_buf; /* transmit buffer */
482 struct sk_buff_head xmit_queue; /* transmit queue */
483 atomic_t xmit_lock; /* Semaphore for isdn_tty_write */
484#ifdef CONFIG_ISDN_AUDIO
485 int vonline; /* Voice-channel status */
486 /* Bit 0 = recording */
487 /* Bit 1 = playback */
488 /* Bit 2 = playback, DLE-ETX seen */
489 struct sk_buff_head dtmf_queue; /* queue for dtmf results */
490 void *adpcms; /* state for adpcm decompression */
491 void *adpcmr; /* state for adpcm compression */
492 void *dtmf_state; /* state for dtmf decoder */
493 void *silence_state; /* state for silence detection */
494#endif
495#ifdef CONFIG_ISDN_TTY_FAX
496 struct T30_s *fax; /* T30 Fax Group 3 data/interface */
497 int faxonline; /* Fax-channel status */
498#endif
499 struct tty_struct *tty; /* Pointer to corresponding tty */
500 atemu emu; /* AT-emulator data */
606d099c
AC		 501 struct ktermios normal_termios; /* For saving termios structs */
502 struct ktermios callout_termios;
1da177e4 503 wait_queue_head_t open_wait, close_wait;
1da177e4
LT		 504 spinlock_t readlock;
505} modem_info;
506
507#define ISDN_MODEM_WINSIZE 8
508
509/* Description of one ISDN-tty */
510typedef struct _isdn_modem {
511 int refcount; /* Number of opens */
512 struct tty_driver *tty_modem; /* tty-device */
513 struct tty_struct *modem_table[ISDN_MAX_CHANNELS]; /* ?? copied from Orig */
606d099c
AC		 514 struct ktermios *modem_termios[ISDN_MAX_CHANNELS];
515 struct ktermios *modem_termios_locked[ISDN_MAX_CHANNELS];
1da177e4
LT		 516 modem_info info[ISDN_MAX_CHANNELS]; /* Private data */
517} isdn_modem_t;
518
519/*======================= End of ISDN-tty stuff ============================*/
520
521/*======================== Start of V.110 stuff ============================*/
522#define V110_BUFSIZE 1024
523
524typedef struct {
525 int nbytes; /* 1 Matrixbyte -> nbytes in stream */
526 int nbits; /* Number of used bits in streambyte */
527 unsigned char key; /* Bitmask in stream eg. 11 (nbits=2) */
528 int decodelen; /* Amount of data in decodebuf */
529 int SyncInit; /* Number of sync frames to send */
530 unsigned char *OnlineFrame; /* Precalculated V110 idle frame */
531 unsigned char *OfflineFrame; /* Precalculated V110 sync Frame */
532 int framelen; /* Length of frames */
533 int skbuser; /* Number of unacked userdata skbs */
534 int skbidle; /* Number of unacked idle/sync skbs */
535 int introducer; /* Local vars for decoder */
536 int dbit;
537 unsigned char b;
538 int skbres; /* space to reserve in outgoing skb */
539 int maxsize; /* maxbufsize of lowlevel driver */
540 unsigned char *encodebuf; /* temporary buffer for encoding */
541 unsigned char decodebuf[V110_BUFSIZE]; /* incomplete V110 matrices */
542} isdn_v110_stream;
543
544/*========================= End of V.110 stuff =============================*/
545
546/*======================= Start of general stuff ===========================*/
547
548typedef struct {
549 char *next;
550 char *private;
551} infostruct;
552
553#define DRV_FLAG_RUNNING 1
554#define DRV_FLAG_REJBUS 2
555#define DRV_FLAG_LOADED 4
556
557/* Description of hardware-level-driver */
558typedef struct _isdn_driver {
559 ulong online; /* Channel-Online flags */
560 ulong flags; /* Misc driver Flags */
561 int locks; /* Number of locks for this driver */
562 int channels; /* Number of channels */
563 wait_queue_head_t st_waitq; /* Wait-Queue for status-read's */
564 int maxbufsize; /* Maximum Buffersize supported */
565 unsigned long pktcount; /* Until now: unused */
566 int stavail; /* Chars avail on Status-device */
567 isdn_if *interface; /* Interface to driver */
568 int *rcverr; /* Error-counters for B-Ch.-receive */
569 int *rcvcount; /* Byte-counters for B-Ch.-receive */
570#ifdef CONFIG_ISDN_AUDIO
571 unsigned long DLEflag; /* Flags: Insert DLE at next read */
572#endif
573 struct sk_buff_head *rpqueue; /* Pointers to start of Rcv-Queue */
574 wait_queue_head_t *rcv_waitq; /* Wait-Queues for B-Channel-Reads */
575 wait_queue_head_t *snd_waitq; /* Wait-Queue for B-Channel-Send's */
576 char msn2eaz[10][ISDN_MSNLEN]; /* Mapping-Table MSN->EAZ */
577} isdn_driver_t;
578
579/* Main driver-data */
580typedef struct isdn_devt {
581 struct module *owner;
582 spinlock_t lock;
583 unsigned short flags; /* Bitmapped Flags: */
584 int drivers; /* Current number of drivers */
585 int channels; /* Current number of channels */
586 int net_verbose; /* Verbose-Flag */
587 int modempoll; /* Flag: tty-read active */
588 spinlock_t timerlock;
589 int tflags; /* Timer-Flags: */
590 /* see ISDN_TIMER_..defines */
591 int global_flags;
592 infostruct *infochain; /* List of open info-devs. */
593 wait_queue_head_t info_waitq; /* Wait-Queue for isdninfo */
594 struct timer_list timer; /* Misc.-function Timer */
595 int chanmap[ISDN_MAX_CHANNELS]; /* Map minor->device-channel */
596 int drvmap[ISDN_MAX_CHANNELS]; /* Map minor->driver-index */
597 int usage[ISDN_MAX_CHANNELS]; /* Used by tty/ip/voice */
598 char num[ISDN_MAX_CHANNELS][ISDN_MSNLEN];
599 /* Remote number of active ch.*/
600 int m_idx[ISDN_MAX_CHANNELS]; /* Index for mdm.... */
601 isdn_driver_t *drv[ISDN_MAX_DRIVERS]; /* Array of drivers */
602 isdn_net_dev *netdev; /* Linked list of net-if's */
603 char drvid[ISDN_MAX_DRIVERS][20];/* Driver-ID */
604 struct task_struct *profd; /* For iprofd */
605 isdn_modem_t mdm; /* tty-driver-data */
606 isdn_net_dev *rx_netdev[ISDN_MAX_CHANNELS]; /* rx netdev-pointers */
607 isdn_net_dev *st_netdev[ISDN_MAX_CHANNELS]; /* stat netdev-pointers */
608 ulong ibytes[ISDN_MAX_CHANNELS]; /* Statistics incoming bytes */
609 ulong obytes[ISDN_MAX_CHANNELS]; /* Statistics outgoing bytes */
610 int v110emu[ISDN_MAX_CHANNELS]; /* V.110 emulator-mode 0=none */
611 atomic_t v110use[ISDN_MAX_CHANNELS]; /* Usage-Semaphore for stream */
612 isdn_v110_stream *v110[ISDN_MAX_CHANNELS]; /* V.110 private data */
4e3dfaca 613 struct mutex mtx; /* serialize list access*/
1da177e4
LT		 614 unsigned long global_features;
615} isdn_dev;
616
617extern isdn_dev *dev;
618
619
620#endif /* __KERNEL__ */
621
622#endif /* __ISDN_H__ */
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