1 /* $Id: isdn.h,v 1.111 2000/11/25 17:01:02 kai 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 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 */
24
25 #ifndef isdn_h
26 #define isdn_h
27
28 #include <linux/config.h>
29 #include <linux/ioctl.h>
30
31 #define ISDN_TTY_MAJOR 43
32 #define ISDN_TTYAUX_MAJOR 44
33 #define ISDN_MAJOR 45
34
35 /* The minor-devicenumbers for Channel 0 and 1 are used as arguments for
36 * physical Channel-Mapping, so they MUST NOT be changed without changing
37 * the correspondent code in isdn.c
38 */
39
40 #ifdef CONFIG_COBALT_MICRO_SERVER
41 /* Save memory */
42 #define ISDN_MAX_DRIVERS 2
43 #define ISDN_MAX_CHANNELS 8
44 #else
45 #define ISDN_MAX_DRIVERS 32
46 #define ISDN_MAX_CHANNELS 64
47 #endif
48 #define ISDN_MINOR_B 0
49 #define ISDN_MINOR_BMAX (ISDN_MAX_CHANNELS-1)
50 #define ISDN_MINOR_CTRL 64
51 #define ISDN_MINOR_CTRLMAX (64 + (ISDN_MAX_CHANNELS-1))
52 #define ISDN_MINOR_PPP 128
53 #define ISDN_MINOR_PPPMAX (128 + (ISDN_MAX_CHANNELS-1))
54 #define ISDN_MINOR_STATUS 255
55
56 #undef CONFIG_ISDN_WITH_ABC_CALLB
57 #undef CONFIG_ISDN_WITH_ABC_UDP_CHECK
58 #undef CONFIG_ISDN_WITH_ABC_UDP_CHECK_HANGUP
59 #undef CONFIG_ISDN_WITH_ABC_UDP_CHECK_DIAL
60 #undef CONFIG_ISDN_WITH_ABC_OUTGOING_EAZ
61 #undef CONFIG_ISDN_WITH_ABC_LCR_SUPPORT
62 #undef CONFIG_ISDN_WITH_ABC_IPV4_TCP_KEEPALIVE
63 #undef CONFIG_ISDN_WITH_ABC_IPV4_DYNADDR
64 #undef CONFIG_ISDN_WITH_ABC_RCV_NO_HUPTIMER
65 #undef CONFIG_ISDN_WITH_ABC_ICALL_BIND
66 #undef CONFIG_ISDN_WITH_ABC_CH_EXTINUSE
67 #undef CONFIG_ISDN_WITH_ABC_CONN_ERROR
68 #undef CONFIG_ISDN_WITH_ABC_RAWIPCOMPRESS
69 #undef CONFIG_ISDN_WITH_ABC_IPTABLES_NETFILTER
70
71
72 /* New ioctl-codes */
73 #define IIOCNETAIF _IO('I',1)
74 #define IIOCNETDIF _IO('I',2)
75 #define IIOCNETSCF _IO('I',3)
76 #define IIOCNETGCF _IO('I',4)
77 #define IIOCNETANM _IO('I',5)
78 #define IIOCNETDNM _IO('I',6)
79 #define IIOCNETGNM _IO('I',7)
80 #define IIOCGETSET _IO('I',8) /* no longer supported */
81 #define IIOCSETSET _IO('I',9) /* no longer supported */
82 #define IIOCSETVER _IO('I',10)
83 #define IIOCNETHUP _IO('I',11)
84 #define IIOCSETGST _IO('I',12)
85 #define IIOCSETBRJ _IO('I',13)
86 #define IIOCSIGPRF _IO('I',14)
87 #define IIOCGETPRF _IO('I',15)
88 #define IIOCSETPRF _IO('I',16)
89 #define IIOCGETMAP _IO('I',17)
90 #define IIOCSETMAP _IO('I',18)
91 #define IIOCNETASL _IO('I',19)
92 #define IIOCNETDIL _IO('I',20)
93 #define IIOCGETCPS _IO('I',21)
94 #define IIOCGETDVR _IO('I',22)
95 #define IIOCNETLCR _IO('I',23) /* dwabc ioctl for LCR from isdnlog */
96 #define IIOCNETDWRSET _IO('I',24) /* dwabc ioctl to reset abc-values to default on a net-interface */
97
98 #define IIOCNETALN _IO('I',32)
99 #define IIOCNETDLN _IO('I',33)
100
101 #define IIOCNETGPN _IO('I',34)
102
103 #define IIOCDBGVAR _IO('I',127)
104
105 #define IIOCDRVCTL _IO('I',128)
106
107 /* Packet encapsulations for net-interfaces */
108 #define ISDN_NET_ENCAP_ETHER 0
109 #define ISDN_NET_ENCAP_RAWIP 1
110 #define ISDN_NET_ENCAP_IPTYP 2
111 #define ISDN_NET_ENCAP_CISCOHDLC 3 /* Without SLARP and keepalive */
112 #define ISDN_NET_ENCAP_SYNCPPP 4
113 #define ISDN_NET_ENCAP_UIHDLC 5
114 #define ISDN_NET_ENCAP_CISCOHDLCK 6 /* With SLARP and keepalive */
115 #define ISDN_NET_ENCAP_X25IFACE 7 /* Documentation/networking/x25-iface.txt*/
116 #define ISDN_NET_ENCAP_MAX_ENCAP ISDN_NET_ENCAP_X25IFACE
117 /* Facility which currently uses an ISDN-channel */
118 #define ISDN_USAGE_NONE 0
119 #define ISDN_USAGE_RAW 1
120 #define ISDN_USAGE_MODEM 2
121 #define ISDN_USAGE_NET 3
122 #define ISDN_USAGE_VOICE 4
123 #define ISDN_USAGE_FAX 5
124 #define ISDN_USAGE_MASK 7 /* Mask to get plain usage */
125 #define ISDN_USAGE_DISABLED 32 /* This bit is set, if channel is disabled */
126 #define ISDN_USAGE_EXCLUSIVE 64 /* This bit is set, if channel is exclusive */
127 #define ISDN_USAGE_OUTGOING 128 /* This bit is set, if channel is outgoing */
128
129 #define ISDN_MODEM_NUMREG 24 /* Number of Modem-Registers */
130 #define ISDN_LMSNLEN 255 /* Length of tty's Listen-MSN string */
131 #define ISDN_CMSGLEN 50 /* Length of CONNECT-Message to add for Modem */
132
133 #define ISDN_MSNLEN 32
134 #define NET_DV 0x06 /* Data version for isdn_net_ioctl_cfg */
135 #define TTY_DV 0x06 /* Data version for iprofd etc. */
136
137 #define INF_DV 0x01 /* Data version for /dev/isdninfo */
138
139 typedef struct {
140 char drvid[25];
141 unsigned long arg;
142 } isdn_ioctl_struct;
143
144 typedef struct {
145 unsigned long isdndev;
146 unsigned long atmodem[ISDN_MAX_CHANNELS];
147 unsigned long info[ISDN_MAX_CHANNELS];
148 } debugvar_addr;
149
150 typedef struct {
151 char name[10];
152 char phone[ISDN_MSNLEN];
153 int outgoing;
154 } isdn_net_ioctl_phone;
155
156 typedef struct {
157 char name[10]; /* Name of interface */
158 char master[10]; /* Name of Master for Bundling */
159 char slave[10]; /* Name of Slave for Bundling */
160 char eaz[256]; /* EAZ/MSN */
161 char drvid[25]; /* DriverId for Bindings */
162 int onhtime; /* Hangup-Timeout */
163 int charge; /* Charge-Units */
164 int l2_proto; /* Layer-2 protocol */
165 int l3_proto; /* Layer-3 protocol */
166 int p_encap; /* Encapsulation */
167 int exclusive; /* Channel, if bound exclusive */
168 int dialmax; /* Dial Retry-Counter */
169 int slavedelay; /* Delay until slave starts up */
170 int cbdelay; /* Delay before Callback */
171 int chargehup; /* Flag: Charge-Hangup */
172 int ihup; /* Flag: Hangup-Timeout on incoming line */
173 int secure; /* Flag: Secure */
174 int callback; /* Flag: Callback */
175 int cbhup; /* Flag: Reject Call before Callback */
176 int pppbind; /* ippp device for bindings */
177 int chargeint; /* Use fixed charge interval length */
178 int triggercps; /* BogoCPS needed for triggering slave */
179 int dialtimeout; /* Dial-Timeout */
180 int dialwait; /* Time to wait after failed dial */
181 int dialmode; /* Flag: off / on / auto */
182 } isdn_net_ioctl_cfg;
183
184 #define ISDN_NET_DIALMODE_MASK 0xC0 /* bits for status */
185 #define ISDN_NET_DM_OFF 0x00 /* this interface is stopped */
186 #define ISDN_NET_DM_MANUAL 0x40 /* this interface is on (manual) */
187 #define ISDN_NET_DM_AUTO 0x80 /* this interface is autodial */
188 #define ISDN_NET_DIALMODE(x) ((&(x))->flags & ISDN_NET_DIALMODE_MASK)
189
190 #ifdef __KERNEL__
191
192 #include <linux/errno.h>
193 #include <linux/fs.h>
194 #include <linux/major.h>
195 #include <asm/segment.h>
196 #include <asm/io.h>
197 #include <linux/kernel.h>
198 #include <linux/signal.h>
199 #include <linux/malloc.h>
200 #include <linux/timer.h>
201 #include <linux/wait.h>
202 #include <linux/tty.h>
203 #include <linux/tty_flip.h>
204 #include <linux/serial_reg.h>
205 #include <linux/fcntl.h>
206 #include <linux/types.h>
207 #include <linux/interrupt.h>
208 #include <linux/ip.h>
209 #include <linux/in.h>
210 #include <linux/netdevice.h>
211 #include <linux/etherdevice.h>
212 #include <linux/skbuff.h>
213 #include <linux/tcp.h>
214
215 #ifdef CONFIG_ISDN_PPP
216
217 #ifdef CONFIG_ISDN_PPP_VJ
218 # include <net/slhc_vj.h>
219 #endif
220
221 #include <linux/ppp_defs.h>
222 #include <linux/if_ppp.h>
223 #include <linux/if_pppvar.h>
224
225 #include <linux/isdn_ppp.h>
226 #endif
227
228 #ifdef CONFIG_ISDN_X25
229 # include <linux/concap.h>
230 #endif
231
232 #ifdef CONFIG_DEVFS_FS
233 # include <linux/devfs_fs_kernel.h>
234 #endif
235
236 #include <linux/isdnif.h>
237
238 #define ISDN_DRVIOCTL_MASK 0x7f /* Mask for Device-ioctl */
239
240 /* Until now unused */
241 #define ISDN_SERVICE_VOICE 1
242 #define ISDN_SERVICE_AB 1<<1
243 #define ISDN_SERVICE_X21 1<<2
244 #define ISDN_SERVICE_G4 1<<3
245 #define ISDN_SERVICE_BTX 1<<4
246 #define ISDN_SERVICE_DFUE 1<<5
247 #define ISDN_SERVICE_X25 1<<6
248 #define ISDN_SERVICE_TTX 1<<7
249 #define ISDN_SERVICE_MIXED 1<<8
250 #define ISDN_SERVICE_FW 1<<9
251 #define ISDN_SERVICE_GTEL 1<<10
252 #define ISDN_SERVICE_BTXN 1<<11
253 #define ISDN_SERVICE_BTEL 1<<12
254
255 /* Macros checking plain usage */
256 #define USG_NONE(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NONE)
257 #define USG_RAW(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_RAW)
258 #define USG_MODEM(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_MODEM)
259 #define USG_VOICE(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_VOICE)
260 #define USG_NET(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NET)
261 #define USG_FAX(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_FAX)
262 #define USG_OUTGOING(x) ((x & ISDN_USAGE_OUTGOING)==ISDN_USAGE_OUTGOING)
263 #define USG_MODEMORVOICE(x) (((x & ISDN_USAGE_MASK)==ISDN_USAGE_MODEM) || \
264 ((x & ISDN_USAGE_MASK)==ISDN_USAGE_VOICE) )
265
266 /* Timer-delays and scheduling-flags */
267 #define ISDN_TIMER_RES 3 /* Main Timer-Resolution */
268 #define ISDN_TIMER_02SEC (HZ/(ISDN_TIMER_RES+1)/5) /* Slow-Timer1 .2 sec */
269 #define ISDN_TIMER_1SEC (HZ/(ISDN_TIMER_RES+1)) /* Slow-Timer2 1 sec */
270 #define ISDN_TIMER_RINGING 5 /* tty RINGs = ISDN_TIMER_1SEC * this factor */
271 #define ISDN_TIMER_KEEPINT 10 /* Cisco-Keepalive = ISDN_TIMER_1SEC * this factor */
272 #define ISDN_TIMER_MODEMREAD 1
273 #define ISDN_TIMER_MODEMPLUS 2
274 #define ISDN_TIMER_MODEMRING 4
275 #define ISDN_TIMER_MODEMXMIT 8
276 #define ISDN_TIMER_NETDIAL 16
277 #define ISDN_TIMER_NETHANGUP 32
278 #define ISDN_TIMER_KEEPALIVE 128 /* Cisco-Keepalive */
279 #define ISDN_TIMER_CARRIER 256 /* Wait for Carrier */
280 #define ISDN_TIMER_FAST (ISDN_TIMER_MODEMREAD | ISDN_TIMER_MODEMPLUS | \
281 ISDN_TIMER_MODEMXMIT)
282 #define ISDN_TIMER_SLOW (ISDN_TIMER_MODEMRING | ISDN_TIMER_NETHANGUP | \
283 ISDN_TIMER_NETDIAL | ISDN_TIMER_KEEPALIVE | \
284 ISDN_TIMER_CARRIER)
285
286 /* Timeout-Values for isdn_net_dial() */
287 #define ISDN_TIMER_DTIMEOUT10 (10*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1)))
288 #define ISDN_TIMER_DTIMEOUT15 (15*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1)))
289 #define ISDN_TIMER_DTIMEOUT60 (60*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1)))
290
291 /* GLOBAL_FLAGS */
292 #define ISDN_GLOBAL_STOPPED 1
293
294 /*=================== Start of ip-over-ISDN stuff =========================*/
295
296 /* Feature- and status-flags for a net-interface */
297 #define ISDN_NET_CONNECTED 0x01 /* Bound to ISDN-Channel */
298 #define ISDN_NET_SECURE 0x02 /* Accept calls from phonelist only */
299 #define ISDN_NET_CALLBACK 0x04 /* activate callback */
300 #define ISDN_NET_CBHUP 0x08 /* hangup before callback */
301 #define ISDN_NET_CBOUT 0x10 /* remote machine does callback */
302
303 #define ISDN_NET_MAGIC 0x49344C02 /* for paranoia-checking */
304
305 /* Phone-list-element */
306 typedef struct {
307 void *next;
308 char num[ISDN_MSNLEN];
309 } isdn_net_phone;
310
311 /*
312 Principles when extending structures for generic encapsulation protocol
313 ("concap") support:
314 - Stuff which is hardware specific (here i4l-specific) goes in
315 the netdev -> local structure (here: isdn_net_local)
316 - Stuff which is encapsulation protocol specific goes in the structure
317 which holds the linux device structure (here: isdn_net_device)
318 */
319
320 /* Local interface-data */
321 typedef struct isdn_net_local_s {
322 ulong magic;
323 char name[10]; /* Name of device */
324 struct net_device_stats stats; /* Ethernet Statistics */
325 int isdn_device; /* Index to isdn-device */
326 int isdn_channel; /* Index to isdn-channel */
327 int ppp_slot; /* PPPD device slot number */
328 int pre_device; /* Preselected isdn-device */
329 int pre_channel; /* Preselected isdn-channel */
330 int exclusive; /* If non-zero idx to reserved chan.*/
331 int flags; /* Connection-flags */
332 int dialretry; /* Counter for Dialout-retries */
333 int dialmax; /* Max. Number of Dial-retries */
334 int cbdelay; /* Delay before Callback starts */
335 int dtimer; /* Timeout-counter for dialing */
336 char msn[ISDN_MSNLEN]; /* MSNs/EAZs for this interface */
337 u_char cbhup; /* Flag: Reject Call before Callback*/
338 u_char dialstate; /* State for dialing */
339 u_char p_encap; /* Packet encapsulation */
340 /* 0 = Ethernet over ISDN */
341 /* 1 = RAW-IP */
342 /* 2 = IP with type field */
343 u_char l2_proto; /* Layer-2-protocol */
344 /* See ISDN_PROTO_L2..-constants in */
345 /* isdnif.h */
346 /* 0 = X75/LAPB with I-Frames */
347 /* 1 = X75/LAPB with UI-Frames */
348 /* 2 = X75/LAPB with BUI-Frames */
349 /* 3 = HDLC */
350 u_char l3_proto; /* Layer-3-protocol */
351 /* See ISDN_PROTO_L3..-constants in */
352 /* isdnif.h */
353 /* 0 = Transparent */
354 int huptimer; /* Timeout-counter for auto-hangup */
355 int charge; /* Counter for charging units */
356 ulong chargetime; /* Timer for Charging info */
357 int hupflags; /* Flags for charge-unit-hangup: */
358 /* bit0: chargeint is invalid */
359 /* bit1: Getting charge-interval */
360 /* bit2: Do charge-unit-hangup */
361 /* bit3: Do hangup even on incoming */
362 int outgoing; /* Flag: outgoing call */
363 int onhtime; /* Time to keep link up */
364 int chargeint; /* Interval between charge-infos */
365 int onum; /* Flag: at least 1 outgoing number */
366 int cps; /* current speed of this interface */
367 int transcount; /* byte-counter for cps-calculation */
368 int sqfull; /* Flag: netdev-queue overloaded */
369 ulong sqfull_stamp; /* Start-Time of overload */
370 ulong slavedelay; /* Dynamic bundling delaytime */
371 int triggercps; /* BogoCPS needed for trigger slave */
372 isdn_net_phone *phone[2]; /* List of remote-phonenumbers */
373 /* phone[0] = Incoming Numbers */
374 /* phone[1] = Outgoing Numbers */
375 isdn_net_phone *dial; /* Pointer to dialed number */
376 struct net_device *master; /* Ptr to Master device for slaves */
377 struct net_device *slave; /* Ptr to Slave device for masters */
378 struct isdn_net_local_s *next; /* Ptr to next link in bundle */
379 struct isdn_net_local_s *last; /* Ptr to last link in bundle */
380 struct isdn_net_dev_s *netdev; /* Ptr to netdev */
381 struct sk_buff_head super_tx_queue; /* List of supervisory frames to */
382 /* be transmitted asap */
383 atomic_t frame_cnt; /* number of frames currently */
384 /* queued in HL driver */
385 /* Ptr to orig. hard_header_cache */
386 spinlock_t xmit_lock; /* used to protect the xmit path of */
387 /* a particular channel (including */
388 /* the frame_cnt */
389
390 int (*org_hhc)(
391 struct neighbour *neigh,
392 struct hh_cache *hh);
393 /* Ptr to orig. header_cache_update */
394 void (*org_hcu)(struct hh_cache *,
395 struct net_device *,
396 unsigned char *);
397 int pppbind; /* ippp device for bindings */
398 int dialtimeout; /* How long shall we try on dialing? (jiffies) */
399 int dialwait; /* How long shall we wait after failed attempt? (jiffies) */
400 ulong dialstarted; /* jiffies of first dialing-attempt */
401 ulong dialwait_timer; /* jiffies of earliest next dialing-attempt */
402 int huptimeout; /* How long will the connection be up? (seconds) */
403 #ifdef CONFIG_ISDN_X25
404 struct concap_device_ops *dops; /* callbacks used by encapsulator */
405 #endif
406 int cisco_loop; /* Loop counter for Cisco-SLARP */
407 ulong cisco_myseq; /* Local keepalive seq. for Cisco */
408 ulong cisco_yourseq; /* Remote keepalive seq. for Cisco */
409 struct tq_struct tqueue;
410 } isdn_net_local;
411
412 /* the interface itself */
413 typedef struct isdn_net_dev_s {
414 isdn_net_local *local;
415 isdn_net_local *queue; /* circular list of all bundled
416 channels, which are currently
417 online */
418 spinlock_t queue_lock; /* lock to protect queue */
419 void *next; /* Pointer to next isdn-interface */
420 struct net_device dev; /* interface to upper levels */
421 #ifdef CONFIG_ISDN_PPP
422 ippp_bundle * pb; /* pointer to the common bundle structure
423 * with the the per-bundle data */
424 #endif
425 #ifdef CONFIG_ISDN_X25
426 struct concap_proto *cprot; /* connection oriented encapsulation protocol */
427 #endif
428
429 } isdn_net_dev;
430
431 /*===================== End of ip-over-ISDN stuff ===========================*/
432
433 /*======================= Start of ISDN-tty stuff ===========================*/
434
435 #define ISDN_ASYNC_MAGIC 0x49344C01 /* for paranoia-checking */
436 #define ISDN_ASYNC_INITIALIZED 0x80000000 /* port was initialized */
437 #define ISDN_ASYNC_CALLOUT_ACTIVE 0x40000000 /* Call out device active */
438 #define ISDN_ASYNC_NORMAL_ACTIVE 0x20000000 /* Normal device active */
439 #define ISDN_ASYNC_CLOSING 0x08000000 /* Serial port is closing */
440 #define ISDN_ASYNC_CTS_FLOW 0x04000000 /* Do CTS flow control */
441 #define ISDN_ASYNC_CHECK_CD 0x02000000 /* i.e., CLOCAL */
442 #define ISDN_ASYNC_HUP_NOTIFY 0x0001 /* Notify tty on hangups/closes */
443 #define ISDN_ASYNC_SESSION_LOCKOUT 0x0100 /* Lock cua opens on session */
444 #define ISDN_ASYNC_PGRP_LOCKOUT 0x0200 /* Lock cua opens on pgrp */
445 #define ISDN_ASYNC_CALLOUT_NOHUP 0x0400 /* No hangup for cui */
446 #define ISDN_ASYNC_SPLIT_TERMIOS 0x0008 /* Sep. termios for dialin/out */
447 #define ISDN_SERIAL_XMIT_SIZE 1024 /* Default bufsize for write */
448 #define ISDN_SERIAL_XMIT_MAX 4000 /* Maximum bufsize for write */
449 #define ISDN_SERIAL_TYPE_NORMAL 1
450 #define ISDN_SERIAL_TYPE_CALLOUT 2
451
452 #ifdef CONFIG_ISDN_AUDIO
453 /* For using sk_buffs with audio we need some private variables
454 * within each sk_buff. For this purpose, we declare a struct here,
455 * and put it always at skb->head. A few macros help accessing the
456 * variables. Of course, we need to check skb_headroom prior to
457 * any access.
458 */
459 typedef struct isdn_audio_skb {
460 unsigned short dle_count;
461 unsigned char lock;
462 } isdn_audio_skb;
463
464 #define ISDN_AUDIO_SKB_DLECOUNT(skb) (((isdn_audio_skb*)skb->head)->dle_count)
465 #define ISDN_AUDIO_SKB_LOCK(skb) (((isdn_audio_skb*)skb->head)->lock)
466 #endif
467
468 /* Private data of AT-command-interpreter */
469 typedef struct atemu {
470 u_char profile[ISDN_MODEM_NUMREG]; /* Modem-Regs. Profile 0 */
471 u_char mdmreg[ISDN_MODEM_NUMREG]; /* Modem-Registers */
472 char pmsn[ISDN_MSNLEN]; /* EAZ/MSNs Profile 0 */
473 char msn[ISDN_MSNLEN]; /* EAZ/MSN */
474 char plmsn[ISDN_LMSNLEN]; /* Listening MSNs Profile 0 */
475 char lmsn[ISDN_LMSNLEN]; /* Listening MSNs */
476 char cpn[ISDN_MSNLEN]; /* CalledPartyNumber on incoming call */
477 char connmsg[ISDN_CMSGLEN]; /* CONNECT-Msg from HL-Driver */
478 #ifdef CONFIG_ISDN_AUDIO
479 u_char vpar[10]; /* Voice-parameters */
480 int lastDLE; /* Flag for voice-coding: DLE seen */
481 #endif
482 int mdmcmdl; /* Length of Modem-Commandbuffer */
483 int pluscount; /* Counter for +++ sequence */
484 int lastplus; /* Timestamp of last + */
485 int carrierwait; /* Seconds of carrier waiting */
486 char mdmcmd[255]; /* Modem-Commandbuffer */
487 unsigned int charge; /* Charge units of current connection */
488 } atemu;
489
490 /* Private data (similar to async_struct in <linux/serial.h>) */
491 typedef struct modem_info {
492 int magic;
493 int flags; /* defined in tty.h */
494 int x_char; /* xon/xoff character */
495 int mcr; /* Modem control register */
496 int msr; /* Modem status register */
497 int lsr; /* Line status register */
498 int line;
499 int count; /* # of fd on device */
500 int blocked_open; /* # of blocked opens */
501 long session; /* Session of opening process */
502 long pgrp; /* pgrp of opening process */
503 int online; /* 1 = B-Channel is up, drop data */
504 /* 2 = B-Channel is up, deliver d.*/
505 int dialing; /* Dial in progress or ATA */
506 int rcvsched; /* Receive needs schedule */
507 int isdn_driver; /* Index to isdn-driver */
508 int isdn_channel; /* Index to isdn-channel */
509 int drv_index; /* Index to dev->usage */
510 int ncarrier; /* Flag: schedule NO CARRIER */
511 unsigned char last_cause[8]; /* Last cause message */
512 unsigned char last_num[ISDN_MSNLEN];
513 /* Last phone-number */
514 unsigned char last_l2; /* Last layer-2 protocol */
515 unsigned char last_si; /* Last service */
516 unsigned char last_lhup; /* Last hangup local? */
517 unsigned char last_dir; /* Last direction (in or out) */
518 struct timer_list nc_timer; /* Timer for delayed NO CARRIER */
519 int send_outstanding;/* # of outstanding send-requests */
520 int xmit_size; /* max. # of chars in xmit_buf */
521 int xmit_count; /* # of chars in xmit_buf */
522 unsigned char *xmit_buf; /* transmit buffer */
523 struct sk_buff_head xmit_queue; /* transmit queue */
524 atomic_t xmit_lock; /* Semaphore for isdn_tty_write */
525 #ifdef CONFIG_ISDN_AUDIO
526 int vonline; /* Voice-channel status */
527 /* Bit 0 = recording */
528 /* Bit 1 = playback */
529 /* Bit 2 = playback, DLE-ETX seen */
530 struct sk_buff_head dtmf_queue; /* queue for dtmf results */
531 void *adpcms; /* state for adpcm decompression */
532 void *adpcmr; /* state for adpcm compression */
533 void *dtmf_state; /* state for dtmf decoder */
534 void *silence_state; /* state for silence detection */
535 #endif
536 #ifdef CONFIG_ISDN_TTY_FAX
537 struct T30_s *fax; /* T30 Fax Group 3 data/interface */
538 int faxonline; /* Fax-channel status */
539 #endif
540 struct tty_struct *tty; /* Pointer to corresponding tty */
541 atemu emu; /* AT-emulator data */
542 struct termios normal_termios; /* For saving termios structs */
543 struct termios callout_termios;
544 wait_queue_head_t open_wait, close_wait;
545 struct semaphore write_sem;
546 } modem_info;
547
548 #define ISDN_MODEM_WINSIZE 8
549
550 /* Description of one ISDN-tty */
551 typedef struct {
552 int refcount; /* Number of opens */
553 struct tty_driver tty_modem; /* tty-device */
554 struct tty_driver cua_modem; /* cua-device */
555 struct tty_struct *modem_table[ISDN_MAX_CHANNELS]; /* ?? copied from Orig */
556 struct termios *modem_termios[ISDN_MAX_CHANNELS];
557 struct termios *modem_termios_locked[ISDN_MAX_CHANNELS];
558 modem_info info[ISDN_MAX_CHANNELS]; /* Private data */
559 } modem;
560
561 /*======================= End of ISDN-tty stuff ============================*/
562
563 /*======================== Start of V.110 stuff ============================*/
564 #define V110_BUFSIZE 1024
565
566 typedef struct {
567 int nbytes; /* 1 Matrixbyte -> nbytes in stream */
568 int nbits; /* Number of used bits in streambyte */
569 unsigned char key; /* Bitmask in stream eg. 11 (nbits=2) */
570 int decodelen; /* Amount of data in decodebuf */
571 int SyncInit; /* Number of sync frames to send */
572 unsigned char *OnlineFrame; /* Precalculated V110 idle frame */
573 unsigned char *OfflineFrame; /* Precalculated V110 sync Frame */
574 int framelen; /* Length of frames */
575 int skbuser; /* Number of unacked userdata skbs */
576 int skbidle; /* Number of unacked idle/sync skbs */
577 int introducer; /* Local vars for decoder */
578 int dbit;
579 unsigned char b;
580 int skbres; /* space to reserve in outgoing skb */
581 int maxsize; /* maxbufsize of lowlevel driver */
582 unsigned char *encodebuf; /* temporary buffer for encoding */
583 unsigned char decodebuf[V110_BUFSIZE]; /* incomplete V110 matrices */
584 } isdn_v110_stream;
585
586 /*========================= End of V.110 stuff =============================*/
587
588 /*======================= Start of general stuff ===========================*/
589
590 typedef struct {
591 char *next;
592 char *private;
593 } infostruct;
594
595 typedef struct isdn_module {
596 struct isdn_module *prev;
597 struct isdn_module *next;
598 char *name;
599 int (*get_free_channel)(int, int, int, int, int);
600 int (*free_channel)(int, int, int);
601 int (*status_callback)(isdn_ctrl *);
602 int (*command)(isdn_ctrl *);
603 int (*receive_callback)(int, int, struct sk_buff *);
604 int (*writebuf_skb)(int, int, int, struct sk_buff *);
605 int (*net_start_xmit)(struct sk_buff *, struct net_device *);
606 int (*net_receive)(struct net_device *, struct sk_buff *);
607 int (*net_open)(struct net_device *);
608 int (*net_close)(struct net_device *);
609 int priority;
610 } isdn_module;
611
612 #define DRV_FLAG_RUNNING 1
613 #define DRV_FLAG_REJBUS 2
614 #define DRV_FLAG_LOADED 4
615
616 /* Description of hardware-level-driver */
617 typedef struct {
618 ulong online; /* Channel-Online flags */
619 ulong flags; /* Misc driver Flags */
620 int locks; /* Number of locks for this driver */
621 int channels; /* Number of channels */
622 wait_queue_head_t st_waitq; /* Wait-Queue for status-read's */
623 int maxbufsize; /* Maximum Buffersize supported */
624 unsigned long pktcount; /* Until now: unused */
625 int stavail; /* Chars avail on Status-device */
626 isdn_if *interface; /* Interface to driver */
627 int *rcverr; /* Error-counters for B-Ch.-receive */
628 int *rcvcount; /* Byte-counters for B-Ch.-receive */
629 #ifdef CONFIG_ISDN_AUDIO
630 unsigned long DLEflag; /* Flags: Insert DLE at next read */
631 #endif
632 struct sk_buff_head *rpqueue; /* Pointers to start of Rcv-Queue */
633 wait_queue_head_t *rcv_waitq; /* Wait-Queues for B-Channel-Reads */
634 wait_queue_head_t *snd_waitq; /* Wait-Queue for B-Channel-Send's */
635 char msn2eaz[10][ISDN_MSNLEN]; /* Mapping-Table MSN->EAZ */
636 } driver;
637
638 /* Main driver-data */
639 typedef struct isdn_devt {
640 unsigned short flags; /* Bitmapped Flags: */
641 /* */
642 int drivers; /* Current number of drivers */
643 int channels; /* Current number of channels */
644 int net_verbose; /* Verbose-Flag */
645 int modempoll; /* Flag: tty-read active */
646 int tflags; /* Timer-Flags: */
647 /* see ISDN_TIMER_..defines */
648 int global_flags;
649 infostruct *infochain; /* List of open info-devs. */
650 wait_queue_head_t info_waitq; /* Wait-Queue for isdninfo */
651 struct timer_list timer; /* Misc.-function Timer */
652 int chanmap[ISDN_MAX_CHANNELS];/* Map minor->device-channel */
653 int drvmap[ISDN_MAX_CHANNELS]; /* Map minor->driver-index */
654 int usage[ISDN_MAX_CHANNELS]; /* Used by tty/ip/voice */
655 char num[ISDN_MAX_CHANNELS][ISDN_MSNLEN];
656 /* Remote number of active ch.*/
657 int m_idx[ISDN_MAX_CHANNELS]; /* Index for mdm.... */
658 driver *drv[ISDN_MAX_DRIVERS]; /* Array of drivers */
659 isdn_net_dev *netdev; /* Linked list of net-if's */
660 char drvid[ISDN_MAX_DRIVERS][20];/* Driver-ID */
661 struct task_struct *profd; /* For iprofd */
662 modem mdm; /* tty-driver-data */
663 isdn_net_dev *rx_netdev[ISDN_MAX_CHANNELS]; /* rx netdev-pointers */
664 isdn_net_dev *st_netdev[ISDN_MAX_CHANNELS]; /* stat netdev-pointers */
665 ulong ibytes[ISDN_MAX_CHANNELS]; /* Statistics incoming bytes */
666 ulong obytes[ISDN_MAX_CHANNELS]; /* Statistics outgoing bytes */
667 int v110emu[ISDN_MAX_CHANNELS];/* V.110 emulator-mode 0=none */
668 atomic_t v110use[ISDN_MAX_CHANNELS];/* Usage-Semaphore for stream */
669 isdn_v110_stream *v110[ISDN_MAX_CHANNELS]; /* V.110 private data */
670 struct semaphore sem; /* serialize list access*/
671 isdn_module *modules;
672 unsigned long global_features;
673 #ifdef CONFIG_DEVFS_FS
674 devfs_handle_t devfs_handle_isdninfo;
675 devfs_handle_t devfs_handle_isdnctrl;
676 devfs_handle_t devfs_handle_isdnX[ISDN_MAX_CHANNELS];
677 devfs_handle_t devfs_handle_isdnctrlX[ISDN_MAX_CHANNELS];
678 #ifdef CONFIG_ISDN_PPP
679 devfs_handle_t devfs_handle_ipppX[ISDN_MAX_CHANNELS];
680 #endif
681 #endif /* CONFIG_DEVFS_FS */
682 } isdn_dev;
683
684 extern isdn_dev *dev;
685
686
687 /* Utility-Macros */
688 #define MIN(a,b) ((a<b)?a:b)
689 #define MAX(a,b) ((a>b)?a:b)
690 #endif /* __KERNEL__ */
691 #endif /* isdn_h */
692
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