[NET]: Inline net_device_stats
[linux-2.6.git] / include / linux / isdn.h
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
149 #include <linux/errno.h>
150 #include <linux/fs.h>
151 #include <linux/major.h>
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 ktermios       normal_termios;  /* For saving termios structs     */
515   struct ktermios       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 ktermios     *modem_termios[ISDN_MAX_CHANNELS];
529   struct ktermios     *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__ */