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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 | ||
19 | #ifdef CONFIG_COBALT_MICRO_SERVER | |
20 | /* Save memory */ | |
21 | #define ISDN_MAX_DRIVERS 2 | |
22 | #define ISDN_MAX_CHANNELS 8 | |
23 | #else | |
24 | #define ISDN_MAX_DRIVERS 32 | |
25 | #define ISDN_MAX_CHANNELS 64 | |
26 | #endif | |
27 | ||
28 | /* New ioctl-codes */ | |
29 | #define IIOCNETAIF _IO('I',1) | |
30 | #define IIOCNETDIF _IO('I',2) | |
31 | #define IIOCNETSCF _IO('I',3) | |
32 | #define IIOCNETGCF _IO('I',4) | |
33 | #define IIOCNETANM _IO('I',5) | |
34 | #define IIOCNETDNM _IO('I',6) | |
35 | #define IIOCNETGNM _IO('I',7) | |
36 | #define IIOCGETSET _IO('I',8) /* no longer supported */ | |
37 | #define IIOCSETSET _IO('I',9) /* no longer supported */ | |
38 | #define IIOCSETVER _IO('I',10) | |
39 | #define IIOCNETHUP _IO('I',11) | |
40 | #define IIOCSETGST _IO('I',12) | |
41 | #define IIOCSETBRJ _IO('I',13) | |
42 | #define IIOCSIGPRF _IO('I',14) | |
43 | #define IIOCGETPRF _IO('I',15) | |
44 | #define IIOCSETPRF _IO('I',16) | |
45 | #define IIOCGETMAP _IO('I',17) | |
46 | #define IIOCSETMAP _IO('I',18) | |
47 | #define IIOCNETASL _IO('I',19) | |
48 | #define IIOCNETDIL _IO('I',20) | |
49 | #define IIOCGETCPS _IO('I',21) | |
50 | #define IIOCGETDVR _IO('I',22) | |
51 | #define IIOCNETLCR _IO('I',23) /* dwabc ioctl for LCR from isdnlog */ | |
52 | #define IIOCNETDWRSET _IO('I',24) /* dwabc ioctl to reset abc-values to default on a net-interface */ | |
53 | ||
54 | #define IIOCNETALN _IO('I',32) | |
55 | #define IIOCNETDLN _IO('I',33) | |
56 | ||
57 | #define IIOCNETGPN _IO('I',34) | |
58 | ||
59 | #define IIOCDBGVAR _IO('I',127) | |
60 | ||
61 | #define IIOCDRVCTL _IO('I',128) | |
62 | ||
63 | /* cisco hdlck device private ioctls */ | |
64 | #define SIOCGKEEPPERIOD (SIOCDEVPRIVATE + 0) | |
65 | #define SIOCSKEEPPERIOD (SIOCDEVPRIVATE + 1) | |
66 | #define SIOCGDEBSERINT (SIOCDEVPRIVATE + 2) | |
67 | #define SIOCSDEBSERINT (SIOCDEVPRIVATE + 3) | |
68 | ||
69 | /* Packet encapsulations for net-interfaces */ | |
70 | #define ISDN_NET_ENCAP_ETHER 0 | |
71 | #define ISDN_NET_ENCAP_RAWIP 1 | |
72 | #define ISDN_NET_ENCAP_IPTYP 2 | |
73 | #define ISDN_NET_ENCAP_CISCOHDLC 3 /* Without SLARP and keepalive */ | |
74 | #define ISDN_NET_ENCAP_SYNCPPP 4 | |
75 | #define ISDN_NET_ENCAP_UIHDLC 5 | |
76 | #define ISDN_NET_ENCAP_CISCOHDLCK 6 /* With SLARP and keepalive */ | |
77 | #define ISDN_NET_ENCAP_X25IFACE 7 /* Documentation/networking/x25-iface.txt*/ | |
78 | #define ISDN_NET_ENCAP_MAX_ENCAP ISDN_NET_ENCAP_X25IFACE | |
79 | ||
80 | /* Facility which currently uses an ISDN-channel */ | |
81 | #define ISDN_USAGE_NONE 0 | |
82 | #define ISDN_USAGE_RAW 1 | |
83 | #define ISDN_USAGE_MODEM 2 | |
84 | #define ISDN_USAGE_NET 3 | |
85 | #define ISDN_USAGE_VOICE 4 | |
86 | #define ISDN_USAGE_FAX 5 | |
87 | #define ISDN_USAGE_MASK 7 /* Mask to get plain usage */ | |
88 | #define ISDN_USAGE_DISABLED 32 /* This bit is set, if channel is disabled */ | |
89 | #define ISDN_USAGE_EXCLUSIVE 64 /* This bit is set, if channel is exclusive */ | |
90 | #define ISDN_USAGE_OUTGOING 128 /* This bit is set, if channel is outgoing */ | |
91 | ||
92 | #define ISDN_MODEM_NUMREG 24 /* Number of Modem-Registers */ | |
93 | #define ISDN_LMSNLEN 255 /* Length of tty's Listen-MSN string */ | |
94 | #define ISDN_CMSGLEN 50 /* Length of CONNECT-Message to add for Modem */ | |
95 | ||
96 | #define ISDN_MSNLEN 32 | |
97 | #define NET_DV 0x06 /* Data version for isdn_net_ioctl_cfg */ | |
98 | #define TTY_DV 0x06 /* Data version for iprofd etc. */ | |
99 | ||
100 | #define INF_DV 0x01 /* Data version for /dev/isdninfo */ | |
101 | ||
102 | typedef struct { | |
103 | char drvid[25]; | |
104 | unsigned long arg; | |
105 | } isdn_ioctl_struct; | |
106 | ||
107 | typedef struct { | |
108 | char name[10]; | |
109 | char phone[ISDN_MSNLEN]; | |
110 | int outgoing; | |
111 | } isdn_net_ioctl_phone; | |
112 | ||
113 | typedef struct { | |
114 | char name[10]; /* Name of interface */ | |
115 | char master[10]; /* Name of Master for Bundling */ | |
116 | char slave[10]; /* Name of Slave for Bundling */ | |
117 | char eaz[256]; /* EAZ/MSN */ | |
118 | char drvid[25]; /* DriverId for Bindings */ | |
119 | int onhtime; /* Hangup-Timeout */ | |
120 | int charge; /* Charge-Units */ | |
121 | int l2_proto; /* Layer-2 protocol */ | |
122 | int l3_proto; /* Layer-3 protocol */ | |
123 | int p_encap; /* Encapsulation */ | |
124 | int exclusive; /* Channel, if bound exclusive */ | |
125 | int dialmax; /* Dial Retry-Counter */ | |
126 | int slavedelay; /* Delay until slave starts up */ | |
127 | int cbdelay; /* Delay before Callback */ | |
128 | int chargehup; /* Flag: Charge-Hangup */ | |
129 | int ihup; /* Flag: Hangup-Timeout on incoming line */ | |
130 | int secure; /* Flag: Secure */ | |
131 | int callback; /* Flag: Callback */ | |
132 | int cbhup; /* Flag: Reject Call before Callback */ | |
133 | int pppbind; /* ippp device for bindings */ | |
134 | int chargeint; /* Use fixed charge interval length */ | |
135 | int triggercps; /* BogoCPS needed for triggering slave */ | |
136 | int dialtimeout; /* Dial-Timeout */ | |
137 | int dialwait; /* Time to wait after failed dial */ | |
138 | int dialmode; /* Flag: off / on / auto */ | |
139 | } isdn_net_ioctl_cfg; | |
140 | ||
141 | #define ISDN_NET_DIALMODE_MASK 0xC0 /* bits for status */ | |
142 | #define ISDN_NET_DM_OFF 0x00 /* this interface is stopped */ | |
143 | #define ISDN_NET_DM_MANUAL 0x40 /* this interface is on (manual) */ | |
144 | #define ISDN_NET_DM_AUTO 0x80 /* this interface is autodial */ | |
145 | #define ISDN_NET_DIALMODE(x) ((&(x))->flags & ISDN_NET_DIALMODE_MASK) | |
146 | ||
147 | #ifdef __KERNEL__ | |
148 | ||
1da177e4 LT |
149 | #include <linux/errno.h> |
150 | #include <linux/fs.h> | |
151 | #include <linux/major.h> | |
1da177e4 LT |
152 | #include <asm/io.h> |
153 | #include <linux/kernel.h> | |
154 | #include <linux/signal.h> | |
155 | #include <linux/slab.h> | |
156 | #include <linux/timer.h> | |
157 | #include <linux/wait.h> | |
158 | #include <linux/tty.h> | |
159 | #include <linux/tty_flip.h> | |
160 | #include <linux/serial_reg.h> | |
161 | #include <linux/fcntl.h> | |
162 | #include <linux/types.h> | |
163 | #include <linux/interrupt.h> | |
164 | #include <linux/ip.h> | |
165 | #include <linux/in.h> | |
166 | #include <linux/netdevice.h> | |
167 | #include <linux/etherdevice.h> | |
168 | #include <linux/skbuff.h> | |
169 | #include <linux/tcp.h> | |
170 | ||
171 | #define ISDN_TTY_MAJOR 43 | |
172 | #define ISDN_TTYAUX_MAJOR 44 | |
173 | #define ISDN_MAJOR 45 | |
174 | ||
175 | /* The minor-devicenumbers for Channel 0 and 1 are used as arguments for | |
176 | * physical Channel-Mapping, so they MUST NOT be changed without changing | |
177 | * the correspondent code in isdn.c | |
178 | */ | |
179 | ||
180 | #define ISDN_MINOR_B 0 | |
181 | #define ISDN_MINOR_BMAX (ISDN_MAX_CHANNELS-1) | |
182 | #define ISDN_MINOR_CTRL 64 | |
183 | #define ISDN_MINOR_CTRLMAX (64 + (ISDN_MAX_CHANNELS-1)) | |
184 | #define ISDN_MINOR_PPP 128 | |
185 | #define ISDN_MINOR_PPPMAX (128 + (ISDN_MAX_CHANNELS-1)) | |
186 | #define ISDN_MINOR_STATUS 255 | |
187 | ||
188 | #ifdef CONFIG_ISDN_PPP | |
189 | ||
190 | #ifdef CONFIG_ISDN_PPP_VJ | |
191 | # include <net/slhc_vj.h> | |
192 | #endif | |
193 | ||
194 | #include <linux/ppp_defs.h> | |
195 | #include <linux/if_ppp.h> | |
196 | ||
197 | #include <linux/isdn_ppp.h> | |
198 | #endif | |
199 | ||
200 | #ifdef CONFIG_ISDN_X25 | |
201 | # include <linux/concap.h> | |
202 | #endif | |
203 | ||
204 | #include <linux/isdnif.h> | |
205 | ||
206 | #define ISDN_DRVIOCTL_MASK 0x7f /* Mask for Device-ioctl */ | |
207 | ||
208 | /* Until now unused */ | |
209 | #define ISDN_SERVICE_VOICE 1 | |
210 | #define ISDN_SERVICE_AB 1<<1 | |
211 | #define ISDN_SERVICE_X21 1<<2 | |
212 | #define ISDN_SERVICE_G4 1<<3 | |
213 | #define ISDN_SERVICE_BTX 1<<4 | |
214 | #define ISDN_SERVICE_DFUE 1<<5 | |
215 | #define ISDN_SERVICE_X25 1<<6 | |
216 | #define ISDN_SERVICE_TTX 1<<7 | |
217 | #define ISDN_SERVICE_MIXED 1<<8 | |
218 | #define ISDN_SERVICE_FW 1<<9 | |
219 | #define ISDN_SERVICE_GTEL 1<<10 | |
220 | #define ISDN_SERVICE_BTXN 1<<11 | |
221 | #define ISDN_SERVICE_BTEL 1<<12 | |
222 | ||
223 | /* Macros checking plain usage */ | |
224 | #define USG_NONE(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NONE) | |
225 | #define USG_RAW(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_RAW) | |
226 | #define USG_MODEM(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_MODEM) | |
227 | #define USG_VOICE(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_VOICE) | |
228 | #define USG_NET(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NET) | |
229 | #define USG_FAX(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_FAX) | |
230 | #define USG_OUTGOING(x) ((x & ISDN_USAGE_OUTGOING)==ISDN_USAGE_OUTGOING) | |
231 | #define USG_MODEMORVOICE(x) (((x & ISDN_USAGE_MASK)==ISDN_USAGE_MODEM) || \ | |
232 | ((x & ISDN_USAGE_MASK)==ISDN_USAGE_VOICE) ) | |
233 | ||
234 | /* Timer-delays and scheduling-flags */ | |
235 | #define ISDN_TIMER_RES 4 /* Main Timer-Resolution */ | |
236 | #define ISDN_TIMER_02SEC (HZ/ISDN_TIMER_RES/5) /* Slow-Timer1 .2 sec */ | |
237 | #define ISDN_TIMER_1SEC (HZ/ISDN_TIMER_RES) /* Slow-Timer2 1 sec */ | |
238 | #define ISDN_TIMER_RINGING 5 /* tty RINGs = ISDN_TIMER_1SEC * this factor */ | |
239 | #define ISDN_TIMER_KEEPINT 10 /* Cisco-Keepalive = ISDN_TIMER_1SEC * this factor */ | |
240 | #define ISDN_TIMER_MODEMREAD 1 | |
241 | #define ISDN_TIMER_MODEMPLUS 2 | |
242 | #define ISDN_TIMER_MODEMRING 4 | |
243 | #define ISDN_TIMER_MODEMXMIT 8 | |
244 | #define ISDN_TIMER_NETDIAL 16 | |
245 | #define ISDN_TIMER_NETHANGUP 32 | |
246 | #define ISDN_TIMER_CARRIER 256 /* Wait for Carrier */ | |
247 | #define ISDN_TIMER_FAST (ISDN_TIMER_MODEMREAD | ISDN_TIMER_MODEMPLUS | \ | |
248 | ISDN_TIMER_MODEMXMIT) | |
249 | #define ISDN_TIMER_SLOW (ISDN_TIMER_MODEMRING | ISDN_TIMER_NETHANGUP | \ | |
250 | ISDN_TIMER_NETDIAL | ISDN_TIMER_CARRIER) | |
251 | ||
252 | /* Timeout-Values for isdn_net_dial() */ | |
253 | #define ISDN_TIMER_DTIMEOUT10 (10*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1))) | |
254 | #define ISDN_TIMER_DTIMEOUT15 (15*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1))) | |
255 | #define ISDN_TIMER_DTIMEOUT60 (60*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1))) | |
256 | ||
257 | /* GLOBAL_FLAGS */ | |
258 | #define ISDN_GLOBAL_STOPPED 1 | |
259 | ||
260 | /*=================== Start of ip-over-ISDN stuff =========================*/ | |
261 | ||
262 | /* Feature- and status-flags for a net-interface */ | |
263 | #define ISDN_NET_CONNECTED 0x01 /* Bound to ISDN-Channel */ | |
264 | #define ISDN_NET_SECURE 0x02 /* Accept calls from phonelist only */ | |
265 | #define ISDN_NET_CALLBACK 0x04 /* activate callback */ | |
266 | #define ISDN_NET_CBHUP 0x08 /* hangup before callback */ | |
267 | #define ISDN_NET_CBOUT 0x10 /* remote machine does callback */ | |
268 | ||
269 | #define ISDN_NET_MAGIC 0x49344C02 /* for paranoia-checking */ | |
270 | ||
271 | /* Phone-list-element */ | |
272 | typedef struct { | |
273 | void *next; | |
274 | char num[ISDN_MSNLEN]; | |
275 | } isdn_net_phone; | |
276 | ||
277 | /* | |
278 | Principles when extending structures for generic encapsulation protocol | |
279 | ("concap") support: | |
280 | - Stuff which is hardware specific (here i4l-specific) goes in | |
281 | the netdev -> local structure (here: isdn_net_local) | |
282 | - Stuff which is encapsulation protocol specific goes in the structure | |
283 | which holds the linux device structure (here: isdn_net_device) | |
284 | */ | |
285 | ||
286 | /* Local interface-data */ | |
287 | typedef struct isdn_net_local_s { | |
288 | ulong magic; | |
289 | char name[10]; /* Name of device */ | |
290 | struct net_device_stats stats; /* Ethernet Statistics */ | |
291 | int isdn_device; /* Index to isdn-device */ | |
292 | int isdn_channel; /* Index to isdn-channel */ | |
293 | int ppp_slot; /* PPPD device slot number */ | |
294 | int pre_device; /* Preselected isdn-device */ | |
295 | int pre_channel; /* Preselected isdn-channel */ | |
296 | int exclusive; /* If non-zero idx to reserved chan.*/ | |
297 | int flags; /* Connection-flags */ | |
298 | int dialretry; /* Counter for Dialout-retries */ | |
299 | int dialmax; /* Max. Number of Dial-retries */ | |
300 | int cbdelay; /* Delay before Callback starts */ | |
301 | int dtimer; /* Timeout-counter for dialing */ | |
302 | char msn[ISDN_MSNLEN]; /* MSNs/EAZs for this interface */ | |
303 | u_char cbhup; /* Flag: Reject Call before Callback*/ | |
304 | u_char dialstate; /* State for dialing */ | |
305 | u_char p_encap; /* Packet encapsulation */ | |
306 | /* 0 = Ethernet over ISDN */ | |
307 | /* 1 = RAW-IP */ | |
308 | /* 2 = IP with type field */ | |
309 | u_char l2_proto; /* Layer-2-protocol */ | |
310 | /* See ISDN_PROTO_L2..-constants in */ | |
311 | /* isdnif.h */ | |
312 | /* 0 = X75/LAPB with I-Frames */ | |
313 | /* 1 = X75/LAPB with UI-Frames */ | |
314 | /* 2 = X75/LAPB with BUI-Frames */ | |
315 | /* 3 = HDLC */ | |
316 | u_char l3_proto; /* Layer-3-protocol */ | |
317 | /* See ISDN_PROTO_L3..-constants in */ | |
318 | /* isdnif.h */ | |
319 | /* 0 = Transparent */ | |
320 | int huptimer; /* Timeout-counter for auto-hangup */ | |
321 | int charge; /* Counter for charging units */ | |
322 | ulong chargetime; /* Timer for Charging info */ | |
323 | int hupflags; /* Flags for charge-unit-hangup: */ | |
324 | /* bit0: chargeint is invalid */ | |
325 | /* bit1: Getting charge-interval */ | |
326 | /* bit2: Do charge-unit-hangup */ | |
327 | /* bit3: Do hangup even on incoming */ | |
328 | int outgoing; /* Flag: outgoing call */ | |
329 | int onhtime; /* Time to keep link up */ | |
330 | int chargeint; /* Interval between charge-infos */ | |
331 | int onum; /* Flag: at least 1 outgoing number */ | |
332 | int cps; /* current speed of this interface */ | |
333 | int transcount; /* byte-counter for cps-calculation */ | |
334 | int sqfull; /* Flag: netdev-queue overloaded */ | |
335 | ulong sqfull_stamp; /* Start-Time of overload */ | |
336 | ulong slavedelay; /* Dynamic bundling delaytime */ | |
337 | int triggercps; /* BogoCPS needed for trigger slave */ | |
338 | isdn_net_phone *phone[2]; /* List of remote-phonenumbers */ | |
339 | /* phone[0] = Incoming Numbers */ | |
340 | /* phone[1] = Outgoing Numbers */ | |
341 | isdn_net_phone *dial; /* Pointer to dialed number */ | |
342 | struct net_device *master; /* Ptr to Master device for slaves */ | |
343 | struct net_device *slave; /* Ptr to Slave device for masters */ | |
344 | struct isdn_net_local_s *next; /* Ptr to next link in bundle */ | |
345 | struct isdn_net_local_s *last; /* Ptr to last link in bundle */ | |
346 | struct isdn_net_dev_s *netdev; /* Ptr to netdev */ | |
347 | struct sk_buff_head super_tx_queue; /* List of supervisory frames to */ | |
348 | /* be transmitted asap */ | |
349 | atomic_t frame_cnt; /* number of frames currently */ | |
350 | /* queued in HL driver */ | |
351 | /* Ptr to orig. hard_header_cache */ | |
352 | spinlock_t xmit_lock; /* used to protect the xmit path of */ | |
353 | /* a particular channel (including */ | |
354 | /* the frame_cnt */ | |
355 | ||
356 | int (*org_hhc)( | |
357 | struct neighbour *neigh, | |
358 | struct hh_cache *hh); | |
359 | /* Ptr to orig. header_cache_update */ | |
360 | void (*org_hcu)(struct hh_cache *, | |
361 | struct net_device *, | |
362 | unsigned char *); | |
363 | int pppbind; /* ippp device for bindings */ | |
364 | int dialtimeout; /* How long shall we try on dialing? (jiffies) */ | |
365 | int dialwait; /* How long shall we wait after failed attempt? (jiffies) */ | |
366 | ulong dialstarted; /* jiffies of first dialing-attempt */ | |
367 | ulong dialwait_timer; /* jiffies of earliest next dialing-attempt */ | |
368 | int huptimeout; /* How long will the connection be up? (seconds) */ | |
369 | #ifdef CONFIG_ISDN_X25 | |
370 | struct concap_device_ops *dops; /* callbacks used by encapsulator */ | |
371 | #endif | |
372 | /* use an own struct for that in later versions */ | |
373 | ulong cisco_myseq; /* Local keepalive seq. for Cisco */ | |
374 | ulong cisco_mineseen; /* returned keepalive seq. from remote */ | |
375 | ulong cisco_yourseq; /* Remote keepalive seq. for Cisco */ | |
376 | int cisco_keepalive_period; /* keepalive period */ | |
377 | ulong cisco_last_slarp_in; /* jiffie of last keepalive packet we received */ | |
378 | char cisco_line_state; /* state of line according to keepalive packets */ | |
379 | char cisco_debserint; /* debugging flag of cisco hdlc with slarp */ | |
380 | struct timer_list cisco_timer; | |
381 | struct work_struct tqueue; | |
382 | } isdn_net_local; | |
383 | ||
384 | /* the interface itself */ | |
385 | typedef struct isdn_net_dev_s { | |
386 | isdn_net_local *local; | |
387 | isdn_net_local *queue; /* circular list of all bundled | |
388 | channels, which are currently | |
389 | online */ | |
390 | spinlock_t queue_lock; /* lock to protect queue */ | |
391 | void *next; /* Pointer to next isdn-interface */ | |
392 | struct net_device dev; /* interface to upper levels */ | |
393 | #ifdef CONFIG_ISDN_PPP | |
394 | ippp_bundle * pb; /* pointer to the common bundle structure | |
395 | * with the per-bundle data */ | |
396 | #endif | |
397 | #ifdef CONFIG_ISDN_X25 | |
398 | struct concap_proto *cprot; /* connection oriented encapsulation protocol */ | |
399 | #endif | |
400 | ||
401 | } isdn_net_dev; | |
402 | ||
403 | /*===================== End of ip-over-ISDN stuff ===========================*/ | |
404 | ||
405 | /*======================= Start of ISDN-tty stuff ===========================*/ | |
406 | ||
407 | #define ISDN_ASYNC_MAGIC 0x49344C01 /* for paranoia-checking */ | |
408 | #define ISDN_ASYNC_INITIALIZED 0x80000000 /* port was initialized */ | |
409 | #define ISDN_ASYNC_CALLOUT_ACTIVE 0x40000000 /* Call out device active */ | |
410 | #define ISDN_ASYNC_NORMAL_ACTIVE 0x20000000 /* Normal device active */ | |
411 | #define ISDN_ASYNC_CLOSING 0x08000000 /* Serial port is closing */ | |
412 | #define ISDN_ASYNC_CTS_FLOW 0x04000000 /* Do CTS flow control */ | |
413 | #define ISDN_ASYNC_CHECK_CD 0x02000000 /* i.e., CLOCAL */ | |
414 | #define ISDN_ASYNC_HUP_NOTIFY 0x0001 /* Notify tty on hangups/closes */ | |
415 | #define ISDN_ASYNC_SESSION_LOCKOUT 0x0100 /* Lock cua opens on session */ | |
416 | #define ISDN_ASYNC_PGRP_LOCKOUT 0x0200 /* Lock cua opens on pgrp */ | |
417 | #define ISDN_ASYNC_CALLOUT_NOHUP 0x0400 /* No hangup for cui */ | |
418 | #define ISDN_ASYNC_SPLIT_TERMIOS 0x0008 /* Sep. termios for dialin/out */ | |
419 | #define ISDN_SERIAL_XMIT_SIZE 1024 /* Default bufsize for write */ | |
420 | #define ISDN_SERIAL_XMIT_MAX 4000 /* Maximum bufsize for write */ | |
421 | #define ISDN_SERIAL_TYPE_NORMAL 1 | |
422 | #define ISDN_SERIAL_TYPE_CALLOUT 2 | |
423 | ||
424 | #ifdef CONFIG_ISDN_AUDIO | |
425 | /* For using sk_buffs with audio we need some private variables | |
426 | * within each sk_buff. For this purpose, we declare a struct here, | |
427 | * and put it always at the private skb->cb data array. A few macros help | |
428 | * accessing the variables. | |
429 | */ | |
430 | typedef struct _isdn_audio_data { | |
431 | unsigned short dle_count; | |
432 | unsigned char lock; | |
433 | } isdn_audio_data_t; | |
434 | ||
435 | #define ISDN_AUDIO_SKB_DLECOUNT(skb) (((isdn_audio_data_t *)&skb->cb[0])->dle_count) | |
436 | #define ISDN_AUDIO_SKB_LOCK(skb) (((isdn_audio_data_t *)&skb->cb[0])->lock) | |
437 | #endif | |
438 | ||
439 | /* Private data of AT-command-interpreter */ | |
440 | typedef struct atemu { | |
441 | u_char profile[ISDN_MODEM_NUMREG]; /* Modem-Regs. Profile 0 */ | |
442 | u_char mdmreg[ISDN_MODEM_NUMREG]; /* Modem-Registers */ | |
443 | char pmsn[ISDN_MSNLEN]; /* EAZ/MSNs Profile 0 */ | |
444 | char msn[ISDN_MSNLEN]; /* EAZ/MSN */ | |
445 | char plmsn[ISDN_LMSNLEN]; /* Listening MSNs Profile 0 */ | |
446 | char lmsn[ISDN_LMSNLEN]; /* Listening MSNs */ | |
447 | char cpn[ISDN_MSNLEN]; /* CalledPartyNumber on incoming call */ | |
448 | char connmsg[ISDN_CMSGLEN]; /* CONNECT-Msg from HL-Driver */ | |
449 | #ifdef CONFIG_ISDN_AUDIO | |
450 | u_char vpar[10]; /* Voice-parameters */ | |
451 | int lastDLE; /* Flag for voice-coding: DLE seen */ | |
452 | #endif | |
453 | int mdmcmdl; /* Length of Modem-Commandbuffer */ | |
454 | int pluscount; /* Counter for +++ sequence */ | |
455 | u_long lastplus; /* Timestamp of last + */ | |
456 | int carrierwait; /* Seconds of carrier waiting */ | |
457 | char mdmcmd[255]; /* Modem-Commandbuffer */ | |
458 | unsigned int charge; /* Charge units of current connection */ | |
459 | } atemu; | |
460 | ||
461 | /* Private data (similar to async_struct in <linux/serial.h>) */ | |
462 | typedef struct modem_info { | |
463 | int magic; | |
464 | struct module *owner; | |
465 | int flags; /* defined in tty.h */ | |
466 | int x_char; /* xon/xoff character */ | |
467 | int mcr; /* Modem control register */ | |
468 | int msr; /* Modem status register */ | |
469 | int lsr; /* Line status register */ | |
470 | int line; | |
471 | int count; /* # of fd on device */ | |
472 | int blocked_open; /* # of blocked opens */ | |
473 | long session; /* Session of opening process */ | |
474 | long pgrp; /* pgrp of opening process */ | |
475 | int online; /* 1 = B-Channel is up, drop data */ | |
476 | /* 2 = B-Channel is up, deliver d.*/ | |
477 | int dialing; /* Dial in progress or ATA */ | |
478 | int rcvsched; /* Receive needs schedule */ | |
479 | int isdn_driver; /* Index to isdn-driver */ | |
480 | int isdn_channel; /* Index to isdn-channel */ | |
481 | int drv_index; /* Index to dev->usage */ | |
482 | int ncarrier; /* Flag: schedule NO CARRIER */ | |
483 | unsigned char last_cause[8]; /* Last cause message */ | |
484 | unsigned char last_num[ISDN_MSNLEN]; | |
485 | /* Last phone-number */ | |
486 | unsigned char last_l2; /* Last layer-2 protocol */ | |
487 | unsigned char last_si; /* Last service */ | |
488 | unsigned char last_lhup; /* Last hangup local? */ | |
489 | unsigned char last_dir; /* Last direction (in or out) */ | |
490 | struct timer_list nc_timer; /* Timer for delayed NO CARRIER */ | |
491 | int send_outstanding;/* # of outstanding send-requests */ | |
492 | int xmit_size; /* max. # of chars in xmit_buf */ | |
493 | int xmit_count; /* # of chars in xmit_buf */ | |
494 | unsigned char *xmit_buf; /* transmit buffer */ | |
495 | struct sk_buff_head xmit_queue; /* transmit queue */ | |
496 | atomic_t xmit_lock; /* Semaphore for isdn_tty_write */ | |
497 | #ifdef CONFIG_ISDN_AUDIO | |
498 | int vonline; /* Voice-channel status */ | |
499 | /* Bit 0 = recording */ | |
500 | /* Bit 1 = playback */ | |
501 | /* Bit 2 = playback, DLE-ETX seen */ | |
502 | struct sk_buff_head dtmf_queue; /* queue for dtmf results */ | |
503 | void *adpcms; /* state for adpcm decompression */ | |
504 | void *adpcmr; /* state for adpcm compression */ | |
505 | void *dtmf_state; /* state for dtmf decoder */ | |
506 | void *silence_state; /* state for silence detection */ | |
507 | #endif | |
508 | #ifdef CONFIG_ISDN_TTY_FAX | |
509 | struct T30_s *fax; /* T30 Fax Group 3 data/interface */ | |
510 | int faxonline; /* Fax-channel status */ | |
511 | #endif | |
512 | struct tty_struct *tty; /* Pointer to corresponding tty */ | |
513 | atemu emu; /* AT-emulator data */ | |
514 | struct termios normal_termios; /* For saving termios structs */ | |
515 | struct termios callout_termios; | |
516 | wait_queue_head_t open_wait, close_wait; | |
517 | struct semaphore write_sem; | |
518 | spinlock_t readlock; | |
519 | } modem_info; | |
520 | ||
521 | #define ISDN_MODEM_WINSIZE 8 | |
522 | ||
523 | /* Description of one ISDN-tty */ | |
524 | typedef struct _isdn_modem { | |
525 | int refcount; /* Number of opens */ | |
526 | struct tty_driver *tty_modem; /* tty-device */ | |
527 | struct tty_struct *modem_table[ISDN_MAX_CHANNELS]; /* ?? copied from Orig */ | |
528 | struct termios *modem_termios[ISDN_MAX_CHANNELS]; | |
529 | struct termios *modem_termios_locked[ISDN_MAX_CHANNELS]; | |
530 | modem_info info[ISDN_MAX_CHANNELS]; /* Private data */ | |
531 | } isdn_modem_t; | |
532 | ||
533 | /*======================= End of ISDN-tty stuff ============================*/ | |
534 | ||
535 | /*======================== Start of V.110 stuff ============================*/ | |
536 | #define V110_BUFSIZE 1024 | |
537 | ||
538 | typedef struct { | |
539 | int nbytes; /* 1 Matrixbyte -> nbytes in stream */ | |
540 | int nbits; /* Number of used bits in streambyte */ | |
541 | unsigned char key; /* Bitmask in stream eg. 11 (nbits=2) */ | |
542 | int decodelen; /* Amount of data in decodebuf */ | |
543 | int SyncInit; /* Number of sync frames to send */ | |
544 | unsigned char *OnlineFrame; /* Precalculated V110 idle frame */ | |
545 | unsigned char *OfflineFrame; /* Precalculated V110 sync Frame */ | |
546 | int framelen; /* Length of frames */ | |
547 | int skbuser; /* Number of unacked userdata skbs */ | |
548 | int skbidle; /* Number of unacked idle/sync skbs */ | |
549 | int introducer; /* Local vars for decoder */ | |
550 | int dbit; | |
551 | unsigned char b; | |
552 | int skbres; /* space to reserve in outgoing skb */ | |
553 | int maxsize; /* maxbufsize of lowlevel driver */ | |
554 | unsigned char *encodebuf; /* temporary buffer for encoding */ | |
555 | unsigned char decodebuf[V110_BUFSIZE]; /* incomplete V110 matrices */ | |
556 | } isdn_v110_stream; | |
557 | ||
558 | /*========================= End of V.110 stuff =============================*/ | |
559 | ||
560 | /*======================= Start of general stuff ===========================*/ | |
561 | ||
562 | typedef struct { | |
563 | char *next; | |
564 | char *private; | |
565 | } infostruct; | |
566 | ||
567 | #define DRV_FLAG_RUNNING 1 | |
568 | #define DRV_FLAG_REJBUS 2 | |
569 | #define DRV_FLAG_LOADED 4 | |
570 | ||
571 | /* Description of hardware-level-driver */ | |
572 | typedef struct _isdn_driver { | |
573 | ulong online; /* Channel-Online flags */ | |
574 | ulong flags; /* Misc driver Flags */ | |
575 | int locks; /* Number of locks for this driver */ | |
576 | int channels; /* Number of channels */ | |
577 | wait_queue_head_t st_waitq; /* Wait-Queue for status-read's */ | |
578 | int maxbufsize; /* Maximum Buffersize supported */ | |
579 | unsigned long pktcount; /* Until now: unused */ | |
580 | int stavail; /* Chars avail on Status-device */ | |
581 | isdn_if *interface; /* Interface to driver */ | |
582 | int *rcverr; /* Error-counters for B-Ch.-receive */ | |
583 | int *rcvcount; /* Byte-counters for B-Ch.-receive */ | |
584 | #ifdef CONFIG_ISDN_AUDIO | |
585 | unsigned long DLEflag; /* Flags: Insert DLE at next read */ | |
586 | #endif | |
587 | struct sk_buff_head *rpqueue; /* Pointers to start of Rcv-Queue */ | |
588 | wait_queue_head_t *rcv_waitq; /* Wait-Queues for B-Channel-Reads */ | |
589 | wait_queue_head_t *snd_waitq; /* Wait-Queue for B-Channel-Send's */ | |
590 | char msn2eaz[10][ISDN_MSNLEN]; /* Mapping-Table MSN->EAZ */ | |
591 | } isdn_driver_t; | |
592 | ||
593 | /* Main driver-data */ | |
594 | typedef struct isdn_devt { | |
595 | struct module *owner; | |
596 | spinlock_t lock; | |
597 | unsigned short flags; /* Bitmapped Flags: */ | |
598 | int drivers; /* Current number of drivers */ | |
599 | int channels; /* Current number of channels */ | |
600 | int net_verbose; /* Verbose-Flag */ | |
601 | int modempoll; /* Flag: tty-read active */ | |
602 | spinlock_t timerlock; | |
603 | int tflags; /* Timer-Flags: */ | |
604 | /* see ISDN_TIMER_..defines */ | |
605 | int global_flags; | |
606 | infostruct *infochain; /* List of open info-devs. */ | |
607 | wait_queue_head_t info_waitq; /* Wait-Queue for isdninfo */ | |
608 | struct timer_list timer; /* Misc.-function Timer */ | |
609 | int chanmap[ISDN_MAX_CHANNELS]; /* Map minor->device-channel */ | |
610 | int drvmap[ISDN_MAX_CHANNELS]; /* Map minor->driver-index */ | |
611 | int usage[ISDN_MAX_CHANNELS]; /* Used by tty/ip/voice */ | |
612 | char num[ISDN_MAX_CHANNELS][ISDN_MSNLEN]; | |
613 | /* Remote number of active ch.*/ | |
614 | int m_idx[ISDN_MAX_CHANNELS]; /* Index for mdm.... */ | |
615 | isdn_driver_t *drv[ISDN_MAX_DRIVERS]; /* Array of drivers */ | |
616 | isdn_net_dev *netdev; /* Linked list of net-if's */ | |
617 | char drvid[ISDN_MAX_DRIVERS][20];/* Driver-ID */ | |
618 | struct task_struct *profd; /* For iprofd */ | |
619 | isdn_modem_t mdm; /* tty-driver-data */ | |
620 | isdn_net_dev *rx_netdev[ISDN_MAX_CHANNELS]; /* rx netdev-pointers */ | |
621 | isdn_net_dev *st_netdev[ISDN_MAX_CHANNELS]; /* stat netdev-pointers */ | |
622 | ulong ibytes[ISDN_MAX_CHANNELS]; /* Statistics incoming bytes */ | |
623 | ulong obytes[ISDN_MAX_CHANNELS]; /* Statistics outgoing bytes */ | |
624 | int v110emu[ISDN_MAX_CHANNELS]; /* V.110 emulator-mode 0=none */ | |
625 | atomic_t v110use[ISDN_MAX_CHANNELS]; /* Usage-Semaphore for stream */ | |
626 | isdn_v110_stream *v110[ISDN_MAX_CHANNELS]; /* V.110 private data */ | |
627 | struct semaphore sem; /* serialize list access*/ | |
628 | unsigned long global_features; | |
629 | } isdn_dev; | |
630 | ||
631 | extern isdn_dev *dev; | |
632 | ||
633 | ||
634 | #endif /* __KERNEL__ */ | |
635 | ||
636 | #endif /* __ISDN_H__ */ |