tree-wide: fix assorted typos all over the place
[linux-2.6.git] / drivers / isdn / capi / capidrv.c
1 /* $Id: capidrv.c,v 1.1.2.2 2004/01/12 23:17:24 keil Exp $
2  *
3  * ISDN4Linux Driver, using capi20 interface (kernelcapi)
4  *
5  * Copyright 1997 by Carsten Paeth <calle@calle.de>
6  *
7  * This software may be used and distributed according to the terms
8  * of the GNU General Public License, incorporated herein by reference.
9  *
10  */
11
12 #include <linux/module.h>
13 #include <linux/errno.h>
14 #include <linux/kernel.h>
15 #include <linux/major.h>
16 #include <linux/slab.h>
17 #include <linux/fcntl.h>
18 #include <linux/fs.h>
19 #include <linux/signal.h>
20 #include <linux/mm.h>
21 #include <linux/timer.h>
22 #include <linux/wait.h>
23 #include <linux/skbuff.h>
24 #include <linux/isdn.h>
25 #include <linux/isdnif.h>
26 #include <linux/proc_fs.h>
27 #include <linux/capi.h>
28 #include <linux/kernelcapi.h>
29 #include <linux/ctype.h>
30 #include <linux/init.h>
31 #include <linux/moduleparam.h>
32
33 #include <linux/isdn/capiutil.h>
34 #include <linux/isdn/capicmd.h>
35 #include "capidrv.h"
36
37 static char *revision = "$Revision: 1.1.2.2 $";
38 static int debugmode = 0;
39
40 MODULE_DESCRIPTION("CAPI4Linux: Interface to ISDN4Linux");
41 MODULE_AUTHOR("Carsten Paeth");
42 MODULE_LICENSE("GPL");
43 module_param(debugmode, uint, S_IRUGO|S_IWUSR);
44
45 /* -------- type definitions ----------------------------------------- */
46
47
48 struct capidrv_contr {
49
50         struct capidrv_contr *next;
51         struct module *owner;
52         u32 contrnr;
53         char name[20];
54
55         /*
56          * for isdn4linux
57          */
58         isdn_if interface;
59         int myid;
60
61         /*
62          * LISTEN state
63          */
64         int state;
65         u32 cipmask;
66         u32 cipmask2;
67         struct timer_list listentimer;
68
69         /*
70          * ID of capi message sent
71          */
72         u16 msgid;
73
74         /*
75          * B-Channels
76          */
77         int nbchan;
78         struct capidrv_bchan {
79                 struct capidrv_contr *contr;
80                 u8 msn[ISDN_MSNLEN];
81                 int l2;
82                 int l3;
83                 u8 num[ISDN_MSNLEN];
84                 u8 mynum[ISDN_MSNLEN];
85                 int si1;
86                 int si2;
87                 int incoming;
88                 int disconnecting;
89                 struct capidrv_plci {
90                         struct capidrv_plci *next;
91                         u32 plci;
92                         u32 ncci;       /* ncci for CONNECT_ACTIVE_IND */
93                         u16 msgid;      /* to identfy CONNECT_CONF */
94                         int chan;
95                         int state;
96                         int leasedline;
97                         struct capidrv_ncci {
98                                 struct capidrv_ncci *next;
99                                 struct capidrv_plci *plcip;
100                                 u32 ncci;
101                                 u16 msgid;      /* to identfy CONNECT_B3_CONF */
102                                 int chan;
103                                 int state;
104                                 int oldstate;
105                                 /* */
106                                 u16 datahandle;
107                                 struct ncci_datahandle_queue {
108                                     struct ncci_datahandle_queue *next;
109                                     u16                         datahandle;
110                                     int                           len;
111                                 } *ackqueue;
112                         } *ncci_list;
113                 } *plcip;
114                 struct capidrv_ncci *nccip;
115         } *bchans;
116
117         struct capidrv_plci *plci_list;
118
119         /* for q931 data */
120         u8  q931_buf[4096];
121         u8 *q931_read;
122         u8 *q931_write;
123         u8 *q931_end;
124 };
125
126
127 struct capidrv_data {
128         struct capi20_appl ap;
129         int ncontr;
130         struct capidrv_contr *contr_list;
131 };
132
133 typedef struct capidrv_plci capidrv_plci;
134 typedef struct capidrv_ncci capidrv_ncci;
135 typedef struct capidrv_contr capidrv_contr;
136 typedef struct capidrv_data capidrv_data;
137 typedef struct capidrv_bchan capidrv_bchan;
138
139 /* -------- data definitions ----------------------------------------- */
140
141 static capidrv_data global;
142 static DEFINE_SPINLOCK(global_lock);
143
144 static void handle_dtrace_data(capidrv_contr *card,
145         int send, int level2, u8 *data, u16 len);
146
147 /* -------- convert functions ---------------------------------------- */
148
149 static inline u32 b1prot(int l2, int l3)
150 {
151         switch (l2) {
152         case ISDN_PROTO_L2_X75I:
153         case ISDN_PROTO_L2_X75UI:
154         case ISDN_PROTO_L2_X75BUI:
155                 return 0;
156         case ISDN_PROTO_L2_HDLC:
157         default:
158                 return 0;
159         case ISDN_PROTO_L2_TRANS:
160                 return 1;
161         case ISDN_PROTO_L2_V11096:
162         case ISDN_PROTO_L2_V11019:
163         case ISDN_PROTO_L2_V11038:
164                 return 2;
165         case ISDN_PROTO_L2_FAX:
166                 return 4;
167         case ISDN_PROTO_L2_MODEM:
168                 return 8;
169         }
170 }
171
172 static inline u32 b2prot(int l2, int l3)
173 {
174         switch (l2) {
175         case ISDN_PROTO_L2_X75I:
176         case ISDN_PROTO_L2_X75UI:
177         case ISDN_PROTO_L2_X75BUI:
178         default:
179                 return 0;
180         case ISDN_PROTO_L2_HDLC:
181         case ISDN_PROTO_L2_TRANS:
182         case ISDN_PROTO_L2_V11096:
183         case ISDN_PROTO_L2_V11019:
184         case ISDN_PROTO_L2_V11038:
185         case ISDN_PROTO_L2_MODEM:
186                 return 1;
187         case ISDN_PROTO_L2_FAX:
188                 return 4;
189         }
190 }
191
192 static inline u32 b3prot(int l2, int l3)
193 {
194         switch (l2) {
195         case ISDN_PROTO_L2_X75I:
196         case ISDN_PROTO_L2_X75UI:
197         case ISDN_PROTO_L2_X75BUI:
198         case ISDN_PROTO_L2_HDLC:
199         case ISDN_PROTO_L2_TRANS:
200         case ISDN_PROTO_L2_V11096:
201         case ISDN_PROTO_L2_V11019:
202         case ISDN_PROTO_L2_V11038:
203         case ISDN_PROTO_L2_MODEM:
204         default:
205                 return 0;
206         case ISDN_PROTO_L2_FAX:
207                 return 4;
208         }
209 }
210
211 static _cstruct b1config_async_v110(u16 rate)
212 {
213         /* CAPI-Spec "B1 Configuration" */
214         static unsigned char buf[9];
215         buf[0] = 8; /* len */
216         /* maximum bitrate */
217         buf[1] = rate & 0xff; buf[2] = (rate >> 8) & 0xff;
218         buf[3] = 8; buf[4] = 0; /* 8 bits per character */
219         buf[5] = 0; buf[6] = 0; /* parity none */
220         buf[7] = 0; buf[8] = 0; /* 1 stop bit */
221         return buf;
222 }
223
224 static _cstruct b1config(int l2, int l3)
225 {
226         switch (l2) {
227         case ISDN_PROTO_L2_X75I:
228         case ISDN_PROTO_L2_X75UI:
229         case ISDN_PROTO_L2_X75BUI:
230         case ISDN_PROTO_L2_HDLC:
231         case ISDN_PROTO_L2_TRANS:
232         default:
233                 return NULL;
234         case ISDN_PROTO_L2_V11096:
235             return b1config_async_v110(9600);
236         case ISDN_PROTO_L2_V11019:
237             return b1config_async_v110(19200);
238         case ISDN_PROTO_L2_V11038:
239             return b1config_async_v110(38400);
240         }
241 }
242
243 static inline u16 si2cip(u8 si1, u8 si2)
244 {
245         static const u8 cip[17][5] =
246         {
247         /*  0  1  2  3  4  */
248                 {0, 0, 0, 0, 0},        /*0 */
249                 {16, 16, 4, 26, 16},    /*1 */
250                 {17, 17, 17, 4, 4},     /*2 */
251                 {2, 2, 2, 2, 2},        /*3 */
252                 {18, 18, 18, 18, 18},   /*4 */
253                 {2, 2, 2, 2, 2},        /*5 */
254                 {0, 0, 0, 0, 0},        /*6 */
255                 {2, 2, 2, 2, 2},        /*7 */
256                 {2, 2, 2, 2, 2},        /*8 */
257                 {21, 21, 21, 21, 21},   /*9 */
258                 {19, 19, 19, 19, 19},   /*10 */
259                 {0, 0, 0, 0, 0},        /*11 */
260                 {0, 0, 0, 0, 0},        /*12 */
261                 {0, 0, 0, 0, 0},        /*13 */
262                 {0, 0, 0, 0, 0},        /*14 */
263                 {22, 22, 22, 22, 22},   /*15 */
264                 {27, 27, 27, 28, 27}    /*16 */
265         };
266         if (si1 > 16)
267                 si1 = 0;
268         if (si2 > 4)
269                 si2 = 0;
270
271         return (u16) cip[si1][si2];
272 }
273
274 static inline u8 cip2si1(u16 cipval)
275 {
276         static const u8 si[32] =
277         {7, 1, 7, 7, 1, 1, 7, 7,        /*0-7 */
278          7, 1, 0, 0, 0, 0, 0, 0,        /*8-15 */
279          1, 2, 4, 10, 9, 9, 15, 7,      /*16-23 */
280          7, 7, 1, 16, 16, 0, 0, 0};     /*24-31 */
281
282         if (cipval > 31)
283                 cipval = 0;     /* .... */
284         return si[cipval];
285 }
286
287 static inline u8 cip2si2(u16 cipval)
288 {
289         static const u8 si[32] =
290         {0, 0, 0, 0, 2, 3, 0, 0,        /*0-7 */
291          0, 3, 0, 0, 0, 0, 0, 0,        /*8-15 */
292          1, 2, 0, 0, 9, 0, 0, 0,        /*16-23 */
293          0, 0, 3, 2, 3, 0, 0, 0};       /*24-31 */
294
295         if (cipval > 31)
296                 cipval = 0;     /* .... */
297         return si[cipval];
298 }
299
300
301 /* -------- controller management ------------------------------------- */
302
303 static inline capidrv_contr *findcontrbydriverid(int driverid)
304 {
305         unsigned long flags;
306         capidrv_contr *p;
307
308         spin_lock_irqsave(&global_lock, flags);
309         for (p = global.contr_list; p; p = p->next)
310                 if (p->myid == driverid)
311                         break;
312         spin_unlock_irqrestore(&global_lock, flags);
313         return p;
314 }
315
316 static capidrv_contr *findcontrbynumber(u32 contr)
317 {
318         unsigned long flags;
319         capidrv_contr *p = global.contr_list;
320
321         spin_lock_irqsave(&global_lock, flags);
322         for (p = global.contr_list; p; p = p->next)
323                 if (p->contrnr == contr)
324                         break;
325         spin_unlock_irqrestore(&global_lock, flags);
326         return p;
327 }
328
329
330 /* -------- plci management ------------------------------------------ */
331
332 static capidrv_plci *new_plci(capidrv_contr * card, int chan)
333 {
334         capidrv_plci *plcip;
335
336         plcip = kzalloc(sizeof(capidrv_plci), GFP_ATOMIC);
337
338         if (plcip == NULL)
339                 return NULL;
340
341         plcip->state = ST_PLCI_NONE;
342         plcip->plci = 0;
343         plcip->msgid = 0;
344         plcip->chan = chan;
345         plcip->next = card->plci_list;
346         card->plci_list = plcip;
347         card->bchans[chan].plcip = plcip;
348
349         return plcip;
350 }
351
352 static capidrv_plci *find_plci_by_plci(capidrv_contr * card, u32 plci)
353 {
354         capidrv_plci *p;
355         for (p = card->plci_list; p; p = p->next)
356                 if (p->plci == plci)
357                         return p;
358         return NULL;
359 }
360
361 static capidrv_plci *find_plci_by_msgid(capidrv_contr * card, u16 msgid)
362 {
363         capidrv_plci *p;
364         for (p = card->plci_list; p; p = p->next)
365                 if (p->msgid == msgid)
366                         return p;
367         return NULL;
368 }
369
370 static capidrv_plci *find_plci_by_ncci(capidrv_contr * card, u32 ncci)
371 {
372         capidrv_plci *p;
373         for (p = card->plci_list; p; p = p->next)
374                 if (p->plci == (ncci & 0xffff))
375                         return p;
376         return NULL;
377 }
378
379 static void free_plci(capidrv_contr * card, capidrv_plci * plcip)
380 {
381         capidrv_plci **pp;
382
383         for (pp = &card->plci_list; *pp; pp = &(*pp)->next) {
384                 if (*pp == plcip) {
385                         *pp = (*pp)->next;
386                         card->bchans[plcip->chan].plcip = NULL;
387                         card->bchans[plcip->chan].disconnecting = 0;
388                         card->bchans[plcip->chan].incoming = 0;
389                         kfree(plcip);
390                         return;
391                 }
392         }
393         printk(KERN_ERR "capidrv-%d: free_plci %p (0x%x) not found, Huh?\n",
394                card->contrnr, plcip, plcip->plci);
395 }
396
397 /* -------- ncci management ------------------------------------------ */
398
399 static inline capidrv_ncci *new_ncci(capidrv_contr * card,
400                                      capidrv_plci * plcip,
401                                      u32 ncci)
402 {
403         capidrv_ncci *nccip;
404
405         nccip = kzalloc(sizeof(capidrv_ncci), GFP_ATOMIC);
406
407         if (nccip == NULL)
408                 return NULL;
409
410         nccip->ncci = ncci;
411         nccip->state = ST_NCCI_NONE;
412         nccip->plcip = plcip;
413         nccip->chan = plcip->chan;
414         nccip->datahandle = 0;
415
416         nccip->next = plcip->ncci_list;
417         plcip->ncci_list = nccip;
418
419         card->bchans[plcip->chan].nccip = nccip;
420
421         return nccip;
422 }
423
424 static inline capidrv_ncci *find_ncci(capidrv_contr * card, u32 ncci)
425 {
426         capidrv_plci *plcip;
427         capidrv_ncci *p;
428
429         if ((plcip = find_plci_by_ncci(card, ncci)) == NULL)
430                 return NULL;
431
432         for (p = plcip->ncci_list; p; p = p->next)
433                 if (p->ncci == ncci)
434                         return p;
435         return NULL;
436 }
437
438 static inline capidrv_ncci *find_ncci_by_msgid(capidrv_contr * card,
439                                                u32 ncci, u16 msgid)
440 {
441         capidrv_plci *plcip;
442         capidrv_ncci *p;
443
444         if ((plcip = find_plci_by_ncci(card, ncci)) == NULL)
445                 return NULL;
446
447         for (p = plcip->ncci_list; p; p = p->next)
448                 if (p->msgid == msgid)
449                         return p;
450         return NULL;
451 }
452
453 static void free_ncci(capidrv_contr * card, struct capidrv_ncci *nccip)
454 {
455         struct capidrv_ncci **pp;
456
457         for (pp = &(nccip->plcip->ncci_list); *pp; pp = &(*pp)->next) {
458                 if (*pp == nccip) {
459                         *pp = (*pp)->next;
460                         break;
461                 }
462         }
463         card->bchans[nccip->chan].nccip = NULL;
464         kfree(nccip);
465 }
466
467 static int capidrv_add_ack(struct capidrv_ncci *nccip,
468                            u16 datahandle, int len)
469 {
470         struct ncci_datahandle_queue *n, **pp;
471
472         n = (struct ncci_datahandle_queue *)
473                 kmalloc(sizeof(struct ncci_datahandle_queue), GFP_ATOMIC);
474         if (!n) {
475            printk(KERN_ERR "capidrv: kmalloc ncci_datahandle failed\n");
476            return -1;
477         }
478         n->next = NULL;
479         n->datahandle = datahandle;
480         n->len = len;
481         for (pp = &nccip->ackqueue; *pp; pp = &(*pp)->next) ;
482         *pp = n;
483         return 0;
484 }
485
486 static int capidrv_del_ack(struct capidrv_ncci *nccip, u16 datahandle)
487 {
488         struct ncci_datahandle_queue **pp, *p;
489         int len;
490
491         for (pp = &nccip->ackqueue; *pp; pp = &(*pp)->next) {
492                 if ((*pp)->datahandle == datahandle) {
493                         p = *pp;
494                         len = p->len;
495                         *pp = (*pp)->next;
496                         kfree(p);
497                         return len;
498                 }
499         }
500         return -1;
501 }
502
503 /* -------- convert and send capi message ---------------------------- */
504
505 static void send_message(capidrv_contr * card, _cmsg * cmsg)
506 {
507         struct sk_buff *skb;
508         size_t len;
509
510         capi_cmsg2message(cmsg, cmsg->buf);
511         len = CAPIMSG_LEN(cmsg->buf);
512         skb = alloc_skb(len, GFP_ATOMIC);
513         if (!skb) {
514                 printk(KERN_ERR "capidrv::send_message: can't allocate mem\n");
515                 return;
516         }
517         memcpy(skb_put(skb, len), cmsg->buf, len);
518         if (capi20_put_message(&global.ap, skb) != CAPI_NOERROR)
519                 kfree_skb(skb);
520 }
521
522 /* -------- state machine -------------------------------------------- */
523
524 struct listenstatechange {
525         int actstate;
526         int nextstate;
527         int event;
528 };
529
530 static struct listenstatechange listentable[] =
531 {
532   {ST_LISTEN_NONE, ST_LISTEN_WAIT_CONF, EV_LISTEN_REQ},
533   {ST_LISTEN_ACTIVE, ST_LISTEN_ACTIVE_WAIT_CONF, EV_LISTEN_REQ},
534   {ST_LISTEN_WAIT_CONF, ST_LISTEN_NONE, EV_LISTEN_CONF_ERROR},
535   {ST_LISTEN_ACTIVE_WAIT_CONF, ST_LISTEN_ACTIVE, EV_LISTEN_CONF_ERROR},
536   {ST_LISTEN_WAIT_CONF, ST_LISTEN_NONE, EV_LISTEN_CONF_EMPTY},
537   {ST_LISTEN_ACTIVE_WAIT_CONF, ST_LISTEN_NONE, EV_LISTEN_CONF_EMPTY},
538   {ST_LISTEN_WAIT_CONF, ST_LISTEN_ACTIVE, EV_LISTEN_CONF_OK},
539   {ST_LISTEN_ACTIVE_WAIT_CONF, ST_LISTEN_ACTIVE, EV_LISTEN_CONF_OK},
540   {},
541 };
542
543 static void listen_change_state(capidrv_contr * card, int event)
544 {
545         struct listenstatechange *p = listentable;
546         while (p->event) {
547                 if (card->state == p->actstate && p->event == event) {
548                         if (debugmode)
549                                 printk(KERN_DEBUG "capidrv-%d: listen_change_state %d -> %d\n",
550                                        card->contrnr, card->state, p->nextstate);
551                         card->state = p->nextstate;
552                         return;
553                 }
554                 p++;
555         }
556         printk(KERN_ERR "capidrv-%d: listen_change_state state=%d event=%d ????\n",
557                card->contrnr, card->state, event);
558
559 }
560
561 /* ------------------------------------------------------------------ */
562
563 static void p0(capidrv_contr * card, capidrv_plci * plci)
564 {
565         isdn_ctrl cmd;
566
567         card->bchans[plci->chan].contr = NULL;
568         cmd.command = ISDN_STAT_DHUP;
569         cmd.driver = card->myid;
570         cmd.arg = plci->chan;
571         card->interface.statcallb(&cmd);
572         free_plci(card, plci);
573 }
574
575 /* ------------------------------------------------------------------ */
576
577 struct plcistatechange {
578         int actstate;
579         int nextstate;
580         int event;
581         void (*changefunc) (capidrv_contr * card, capidrv_plci * plci);
582 };
583
584 static struct plcistatechange plcitable[] =
585 {
586   /* P-0 */
587   {ST_PLCI_NONE, ST_PLCI_OUTGOING, EV_PLCI_CONNECT_REQ, NULL},
588   {ST_PLCI_NONE, ST_PLCI_ALLOCATED, EV_PLCI_FACILITY_IND_UP, NULL},
589   {ST_PLCI_NONE, ST_PLCI_INCOMING, EV_PLCI_CONNECT_IND, NULL},
590   {ST_PLCI_NONE, ST_PLCI_RESUMEING, EV_PLCI_RESUME_REQ, NULL},
591   /* P-0.1 */
592   {ST_PLCI_OUTGOING, ST_PLCI_NONE, EV_PLCI_CONNECT_CONF_ERROR, p0},
593   {ST_PLCI_OUTGOING, ST_PLCI_ALLOCATED, EV_PLCI_CONNECT_CONF_OK, NULL},
594   /* P-1 */
595   {ST_PLCI_ALLOCATED, ST_PLCI_ACTIVE, EV_PLCI_CONNECT_ACTIVE_IND, NULL},
596   {ST_PLCI_ALLOCATED, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
597   {ST_PLCI_ALLOCATED, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
598   {ST_PLCI_ALLOCATED, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
599   /* P-ACT */
600   {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
601   {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
602   {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
603   {ST_PLCI_ACTIVE, ST_PLCI_HELD, EV_PLCI_HOLD_IND, NULL},
604   {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTING, EV_PLCI_SUSPEND_IND, NULL},
605   /* P-2 */
606   {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_CONNECT_REJECT, NULL},
607   {ST_PLCI_INCOMING, ST_PLCI_FACILITY_IND, EV_PLCI_FACILITY_IND_UP, NULL},
608   {ST_PLCI_INCOMING, ST_PLCI_ACCEPTING, EV_PLCI_CONNECT_RESP, NULL},
609   {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
610   {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
611   {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
612   {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_CD_IND, NULL},
613   /* P-3 */
614   {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTING, EV_PLCI_CONNECT_REJECT, NULL},
615   {ST_PLCI_FACILITY_IND, ST_PLCI_ACCEPTING, EV_PLCI_CONNECT_ACTIVE_IND, NULL},
616   {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
617   {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
618   {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
619   /* P-4 */
620   {ST_PLCI_ACCEPTING, ST_PLCI_ACTIVE, EV_PLCI_CONNECT_ACTIVE_IND, NULL},
621   {ST_PLCI_ACCEPTING, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
622   {ST_PLCI_ACCEPTING, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
623   {ST_PLCI_ACCEPTING, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
624   /* P-5 */
625   {ST_PLCI_DISCONNECTING, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
626   /* P-6 */
627   {ST_PLCI_DISCONNECTED, ST_PLCI_NONE, EV_PLCI_DISCONNECT_RESP, p0},
628   /* P-0.Res */
629   {ST_PLCI_RESUMEING, ST_PLCI_NONE, EV_PLCI_RESUME_CONF_ERROR, p0},
630   {ST_PLCI_RESUMEING, ST_PLCI_RESUME, EV_PLCI_RESUME_CONF_OK, NULL},
631   /* P-RES */
632   {ST_PLCI_RESUME, ST_PLCI_ACTIVE, EV_PLCI_RESUME_IND, NULL},
633   /* P-HELD */
634   {ST_PLCI_HELD, ST_PLCI_ACTIVE, EV_PLCI_RETRIEVE_IND, NULL},
635   {},
636 };
637
638 static void plci_change_state(capidrv_contr * card, capidrv_plci * plci, int event)
639 {
640         struct plcistatechange *p = plcitable;
641         while (p->event) {
642                 if (plci->state == p->actstate && p->event == event) {
643                         if (debugmode)
644                                 printk(KERN_DEBUG "capidrv-%d: plci_change_state:0x%x %d -> %d\n",
645                                   card->contrnr, plci->plci, plci->state, p->nextstate);
646                         plci->state = p->nextstate;
647                         if (p->changefunc)
648                                 p->changefunc(card, plci);
649                         return;
650                 }
651                 p++;
652         }
653         printk(KERN_ERR "capidrv-%d: plci_change_state:0x%x state=%d event=%d ????\n",
654                card->contrnr, plci->plci, plci->state, event);
655 }
656
657 /* ------------------------------------------------------------------ */
658
659 static _cmsg cmsg;
660
661 static void n0(capidrv_contr * card, capidrv_ncci * ncci)
662 {
663         isdn_ctrl cmd;
664
665         capi_fill_DISCONNECT_REQ(&cmsg,
666                                  global.ap.applid,
667                                  card->msgid++,
668                                  ncci->plcip->plci,
669                                  NULL,  /* BChannelinformation */
670                                  NULL,  /* Keypadfacility */
671                                  NULL,  /* Useruserdata */   /* $$$$ */
672                                  NULL   /* Facilitydataarray */
673         );
674         plci_change_state(card, ncci->plcip, EV_PLCI_DISCONNECT_REQ);
675         send_message(card, &cmsg);
676
677         cmd.command = ISDN_STAT_BHUP;
678         cmd.driver = card->myid;
679         cmd.arg = ncci->chan;
680         card->interface.statcallb(&cmd);
681         free_ncci(card, ncci);
682 }
683
684 /* ------------------------------------------------------------------ */
685
686 struct nccistatechange {
687         int actstate;
688         int nextstate;
689         int event;
690         void (*changefunc) (capidrv_contr * card, capidrv_ncci * ncci);
691 };
692
693 static struct nccistatechange nccitable[] =
694 {
695   /* N-0 */
696   {ST_NCCI_NONE, ST_NCCI_OUTGOING, EV_NCCI_CONNECT_B3_REQ, NULL},
697   {ST_NCCI_NONE, ST_NCCI_INCOMING, EV_NCCI_CONNECT_B3_IND, NULL},
698   /* N-0.1 */
699   {ST_NCCI_OUTGOING, ST_NCCI_ALLOCATED, EV_NCCI_CONNECT_B3_CONF_OK, NULL},
700   {ST_NCCI_OUTGOING, ST_NCCI_NONE, EV_NCCI_CONNECT_B3_CONF_ERROR, n0},
701   /* N-1 */
702   {ST_NCCI_INCOMING, ST_NCCI_DISCONNECTING, EV_NCCI_CONNECT_B3_REJECT, NULL},
703   {ST_NCCI_INCOMING, ST_NCCI_ALLOCATED, EV_NCCI_CONNECT_B3_RESP, NULL},
704   {ST_NCCI_INCOMING, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
705   {ST_NCCI_INCOMING, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL},
706   /* N-2 */
707   {ST_NCCI_ALLOCATED, ST_NCCI_ACTIVE, EV_NCCI_CONNECT_B3_ACTIVE_IND, NULL},
708   {ST_NCCI_ALLOCATED, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
709   {ST_NCCI_ALLOCATED, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL},
710   /* N-ACT */
711   {ST_NCCI_ACTIVE, ST_NCCI_ACTIVE, EV_NCCI_RESET_B3_IND, NULL},
712   {ST_NCCI_ACTIVE, ST_NCCI_RESETING, EV_NCCI_RESET_B3_REQ, NULL},
713   {ST_NCCI_ACTIVE, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
714   {ST_NCCI_ACTIVE, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL},
715   /* N-3 */
716   {ST_NCCI_RESETING, ST_NCCI_ACTIVE, EV_NCCI_RESET_B3_IND, NULL},
717   {ST_NCCI_RESETING, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
718   {ST_NCCI_RESETING, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL},
719   /* N-4 */
720   {ST_NCCI_DISCONNECTING, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
721   {ST_NCCI_DISCONNECTING, ST_NCCI_PREVIOUS, EV_NCCI_DISCONNECT_B3_CONF_ERROR,NULL},
722   /* N-5 */
723   {ST_NCCI_DISCONNECTED, ST_NCCI_NONE, EV_NCCI_DISCONNECT_B3_RESP, n0},
724   {},
725 };
726
727 static void ncci_change_state(capidrv_contr * card, capidrv_ncci * ncci, int event)
728 {
729         struct nccistatechange *p = nccitable;
730         while (p->event) {
731                 if (ncci->state == p->actstate && p->event == event) {
732                         if (debugmode)
733                                 printk(KERN_DEBUG "capidrv-%d: ncci_change_state:0x%x %d -> %d\n",
734                                   card->contrnr, ncci->ncci, ncci->state, p->nextstate);
735                         if (p->nextstate == ST_NCCI_PREVIOUS) {
736                                 ncci->state = ncci->oldstate;
737                                 ncci->oldstate = p->actstate;
738                         } else {
739                                 ncci->oldstate = p->actstate;
740                                 ncci->state = p->nextstate;
741                         }
742                         if (p->changefunc)
743                                 p->changefunc(card, ncci);
744                         return;
745                 }
746                 p++;
747         }
748         printk(KERN_ERR "capidrv-%d: ncci_change_state:0x%x state=%d event=%d ????\n",
749                card->contrnr, ncci->ncci, ncci->state, event);
750 }
751
752 /* ------------------------------------------------------------------- */
753
754 static inline int new_bchan(capidrv_contr * card)
755 {
756         int i;
757         for (i = 0; i < card->nbchan; i++) {
758                 if (card->bchans[i].plcip == NULL) {
759                         card->bchans[i].disconnecting = 0;
760                         return i;
761                 }
762         }
763         return -1;
764 }
765
766 /* ------------------------------------------------------------------- */
767
768 static void handle_controller(_cmsg * cmsg)
769 {
770         capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f);
771
772         if (!card) {
773                 printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n",
774                        capi_cmd2str(cmsg->Command, cmsg->Subcommand),
775                        cmsg->adr.adrController & 0x7f);
776                 return;
777         }
778         switch (CAPICMD(cmsg->Command, cmsg->Subcommand)) {
779
780         case CAPI_LISTEN_CONF:  /* Controller */
781                 if (debugmode)
782                         printk(KERN_DEBUG "capidrv-%d: listenconf Info=0x%4x (%s) cipmask=0x%x\n",
783                                card->contrnr, cmsg->Info, capi_info2str(cmsg->Info), card->cipmask);
784                 if (cmsg->Info) {
785                         listen_change_state(card, EV_LISTEN_CONF_ERROR);
786                 } else if (card->cipmask == 0) {
787                         listen_change_state(card, EV_LISTEN_CONF_EMPTY);
788                 } else {
789                         listen_change_state(card, EV_LISTEN_CONF_OK);
790                 }
791                 break;
792
793         case CAPI_MANUFACTURER_IND:     /* Controller */
794                 if (   cmsg->ManuID == 0x214D5641
795                     && cmsg->Class == 0
796                     && cmsg->Function == 1) {
797                    u8  *data = cmsg->ManuData+3;
798                    u16  len = cmsg->ManuData[0];
799                    u16 layer;
800                    int direction;
801                    if (len == 255) {
802                       len = (cmsg->ManuData[1] | (cmsg->ManuData[2] << 8));
803                       data += 2;
804                    }
805                    len -= 2;
806                    layer = ((*(data-1)) << 8) | *(data-2);
807                    if (layer & 0x300)
808                         direction = (layer & 0x200) ? 0 : 1;
809                    else direction = (layer & 0x800) ? 0 : 1;
810                    if (layer & 0x0C00) {
811                         if ((layer & 0xff) == 0x80) {
812                            handle_dtrace_data(card, direction, 1, data, len);
813                            break;
814                         }
815                    } else if ((layer & 0xff) < 0x80) {
816                       handle_dtrace_data(card, direction, 0, data, len);
817                       break;
818                    }
819                    printk(KERN_INFO "capidrv-%d: %s from controller 0x%x layer 0x%x, ignored\n",
820                         card->contrnr, 
821                         capi_cmd2str(cmsg->Command, cmsg->Subcommand),
822                         cmsg->adr.adrController, layer);
823                    break;
824                 }
825                 goto ignored;
826         case CAPI_MANUFACTURER_CONF:    /* Controller */
827                 if (cmsg->ManuID == 0x214D5641) {
828                    char *s = NULL;
829                    switch (cmsg->Class) {
830                       case 0: break;
831                       case 1: s = "unknown class"; break;
832                       case 2: s = "unknown function"; break;
833                       default: s = "unknown error"; break;
834                    }
835                    if (s)
836                    printk(KERN_INFO "capidrv-%d: %s from controller 0x%x function %d: %s\n",
837                         card->contrnr,
838                         capi_cmd2str(cmsg->Command, cmsg->Subcommand),
839                         cmsg->adr.adrController,
840                         cmsg->Function, s);
841                    break;
842                 }
843                 goto ignored;
844         case CAPI_FACILITY_IND: /* Controller/plci/ncci */
845                 goto ignored;
846         case CAPI_FACILITY_CONF:        /* Controller/plci/ncci */
847                 goto ignored;
848         case CAPI_INFO_IND:     /* Controller/plci */
849                 goto ignored;
850         case CAPI_INFO_CONF:    /* Controller/plci */
851                 goto ignored;
852
853         default:
854                 printk(KERN_ERR "capidrv-%d: got %s from controller 0x%x ???",
855                        card->contrnr,
856                        capi_cmd2str(cmsg->Command, cmsg->Subcommand),
857                        cmsg->adr.adrController);
858         }
859         return;
860
861       ignored:
862         printk(KERN_INFO "capidrv-%d: %s from controller 0x%x ignored\n",
863                card->contrnr,
864                capi_cmd2str(cmsg->Command, cmsg->Subcommand),
865                cmsg->adr.adrController);
866 }
867
868 static void handle_incoming_call(capidrv_contr * card, _cmsg * cmsg)
869 {
870         capidrv_plci *plcip;
871         capidrv_bchan *bchan;
872         isdn_ctrl cmd;
873         int chan;
874
875         if ((chan = new_bchan(card)) == -1) {
876                 printk(KERN_ERR "capidrv-%d: incoming call on not existing bchan ?\n", card->contrnr);
877                 return;
878         }
879         bchan = &card->bchans[chan];
880         if ((plcip = new_plci(card, chan)) == NULL) {
881                 printk(KERN_ERR "capidrv-%d: incoming call: no memory, sorry.\n", card->contrnr);
882                 return;
883         }
884         bchan->incoming = 1;
885         plcip->plci = cmsg->adr.adrPLCI;
886         plci_change_state(card, plcip, EV_PLCI_CONNECT_IND);
887
888         cmd.command = ISDN_STAT_ICALL;
889         cmd.driver = card->myid;
890         cmd.arg = chan;
891         memset(&cmd.parm.setup, 0, sizeof(cmd.parm.setup));
892         strncpy(cmd.parm.setup.phone,
893                 cmsg->CallingPartyNumber + 3,
894                 cmsg->CallingPartyNumber[0] - 2);
895         strncpy(cmd.parm.setup.eazmsn,
896                 cmsg->CalledPartyNumber + 2,
897                 cmsg->CalledPartyNumber[0] - 1);
898         cmd.parm.setup.si1 = cip2si1(cmsg->CIPValue);
899         cmd.parm.setup.si2 = cip2si2(cmsg->CIPValue);
900         cmd.parm.setup.plan = cmsg->CallingPartyNumber[1];
901         cmd.parm.setup.screen = cmsg->CallingPartyNumber[2];
902
903         printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s\n", 
904                         card->contrnr,
905                         cmd.parm.setup.phone,
906                         cmd.parm.setup.si1,
907                         cmd.parm.setup.si2,
908                         cmd.parm.setup.eazmsn);
909
910         if (cmd.parm.setup.si1 == 1 && cmd.parm.setup.si2 != 0) {
911                 printk(KERN_INFO "capidrv-%d: patching si2=%d to 0 for VBOX\n", 
912                         card->contrnr,
913                         cmd.parm.setup.si2);
914                 cmd.parm.setup.si2 = 0;
915         }
916
917         switch (card->interface.statcallb(&cmd)) {
918         case 0:
919         case 3:
920                 /* No device matching this call.
921                  * and isdn_common.c has send a HANGUP command
922                  * which is ignored in state ST_PLCI_INCOMING,
923                  * so we send RESP to ignore the call
924                  */
925                 capi_cmsg_answer(cmsg);
926                 cmsg->Reject = 1;       /* ignore */
927                 plci_change_state(card, plcip, EV_PLCI_CONNECT_REJECT);
928                 send_message(card, cmsg);
929                 printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s ignored\n",
930                         card->contrnr,
931                         cmd.parm.setup.phone,
932                         cmd.parm.setup.si1,
933                         cmd.parm.setup.si2,
934                         cmd.parm.setup.eazmsn);
935                 break;
936         case 1:
937                 /* At least one device matching this call (RING on ttyI)
938                  * HL-driver may send ALERTING on the D-channel in this
939                  * case.
940                  * really means: RING on ttyI or a net interface
941                  * accepted this call already.
942                  *
943                  * If the call was accepted, state has already changed,
944                  * and CONNECT_RESP already sent.
945                  */
946                 if (plcip->state == ST_PLCI_INCOMING) {
947                         printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s tty alerting\n",
948                                 card->contrnr,
949                                 cmd.parm.setup.phone,
950                                 cmd.parm.setup.si1,
951                                 cmd.parm.setup.si2,
952                                 cmd.parm.setup.eazmsn);
953                         capi_fill_ALERT_REQ(cmsg,
954                                             global.ap.applid,
955                                             card->msgid++,
956                                             plcip->plci,        /* adr */
957                                             NULL,/* BChannelinformation */
958                                             NULL,/* Keypadfacility */
959                                             NULL,/* Useruserdata */
960                                             NULL /* Facilitydataarray */
961                         );
962                         plcip->msgid = cmsg->Messagenumber;
963                         send_message(card, cmsg);
964                 } else {
965                         printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s on netdev\n",
966                                 card->contrnr,
967                                 cmd.parm.setup.phone,
968                                 cmd.parm.setup.si1,
969                                 cmd.parm.setup.si2,
970                                 cmd.parm.setup.eazmsn);
971                 }
972                 break;
973
974         case 2:         /* Call will be rejected. */
975                 capi_cmsg_answer(cmsg);
976                 cmsg->Reject = 2;       /* reject call, normal call clearing */
977                 plci_change_state(card, plcip, EV_PLCI_CONNECT_REJECT);
978                 send_message(card, cmsg);
979                 break;
980
981         default:
982                 /* An error happened. (Invalid parameters for example.) */
983                 capi_cmsg_answer(cmsg);
984                 cmsg->Reject = 8;       /* reject call,
985                                            destination out of order */
986                 plci_change_state(card, plcip, EV_PLCI_CONNECT_REJECT);
987                 send_message(card, cmsg);
988                 break;
989         }
990         return;
991 }
992
993 static void handle_plci(_cmsg * cmsg)
994 {
995         capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f);
996         capidrv_plci *plcip;
997         isdn_ctrl cmd;
998         _cdebbuf *cdb;
999
1000         if (!card) {
1001                 printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n",
1002                        capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1003                        cmsg->adr.adrController & 0x7f);
1004                 return;
1005         }
1006         switch (CAPICMD(cmsg->Command, cmsg->Subcommand)) {
1007
1008         case CAPI_DISCONNECT_IND:       /* plci */
1009                 if (cmsg->Reason) {
1010                         printk(KERN_INFO "capidrv-%d: %s reason 0x%x (%s) for plci 0x%x\n",
1011                            card->contrnr,
1012                            capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1013                                cmsg->Reason, capi_info2str(cmsg->Reason), cmsg->adr.adrPLCI);
1014                 }
1015                 if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI))) {
1016                         capi_cmsg_answer(cmsg);
1017                         send_message(card, cmsg);
1018                         goto notfound;
1019                 }
1020                 card->bchans[plcip->chan].disconnecting = 1;
1021                 plci_change_state(card, plcip, EV_PLCI_DISCONNECT_IND);
1022                 capi_cmsg_answer(cmsg);
1023                 plci_change_state(card, plcip, EV_PLCI_DISCONNECT_RESP);
1024                 send_message(card, cmsg);
1025                 break;
1026
1027         case CAPI_DISCONNECT_CONF:      /* plci */
1028                 if (cmsg->Info) {
1029                         printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for plci 0x%x\n",
1030                            card->contrnr,
1031                            capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1032                                cmsg->Info, capi_info2str(cmsg->Info), 
1033                                cmsg->adr.adrPLCI);
1034                 }
1035                 if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI)))
1036                         goto notfound;
1037
1038                 card->bchans[plcip->chan].disconnecting = 1;
1039                 break;
1040
1041         case CAPI_ALERT_CONF:   /* plci */
1042                 if (cmsg->Info) {
1043                         printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for plci 0x%x\n",
1044                            card->contrnr,
1045                            capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1046                                cmsg->Info, capi_info2str(cmsg->Info), 
1047                                cmsg->adr.adrPLCI);
1048                 }
1049                 break;
1050
1051         case CAPI_CONNECT_IND:  /* plci */
1052                 handle_incoming_call(card, cmsg);
1053                 break;
1054
1055         case CAPI_CONNECT_CONF: /* plci */
1056                 if (cmsg->Info) {
1057                         printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for plci 0x%x\n",
1058                            card->contrnr,
1059                            capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1060                                cmsg->Info, capi_info2str(cmsg->Info), 
1061                                cmsg->adr.adrPLCI);
1062                 }
1063                 if (!(plcip = find_plci_by_msgid(card, cmsg->Messagenumber)))
1064                         goto notfound;
1065
1066                 plcip->plci = cmsg->adr.adrPLCI;
1067                 if (cmsg->Info) {
1068                         plci_change_state(card, plcip, EV_PLCI_CONNECT_CONF_ERROR);
1069                 } else {
1070                         plci_change_state(card, plcip, EV_PLCI_CONNECT_CONF_OK);
1071                 }
1072                 break;
1073
1074         case CAPI_CONNECT_ACTIVE_IND:   /* plci */
1075
1076                 if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI)))
1077                         goto notfound;
1078
1079                 if (card->bchans[plcip->chan].incoming) {
1080                         capi_cmsg_answer(cmsg);
1081                         plci_change_state(card, plcip, EV_PLCI_CONNECT_ACTIVE_IND);
1082                         send_message(card, cmsg);
1083                 } else {
1084                         capidrv_ncci *nccip;
1085                         capi_cmsg_answer(cmsg);
1086                         send_message(card, cmsg);
1087
1088                         nccip = new_ncci(card, plcip, cmsg->adr.adrPLCI);
1089
1090                         if (!nccip) {
1091                                 printk(KERN_ERR "capidrv-%d: no mem for ncci, sorry\n", card->contrnr);
1092                                 break;  /* $$$$ */
1093                         }
1094                         capi_fill_CONNECT_B3_REQ(cmsg,
1095                                                  global.ap.applid,
1096                                                  card->msgid++,
1097                                                  plcip->plci,   /* adr */
1098                                                  NULL   /* NCPI */
1099                         );
1100                         nccip->msgid = cmsg->Messagenumber;
1101                         plci_change_state(card, plcip,
1102                                           EV_PLCI_CONNECT_ACTIVE_IND);
1103                         ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_REQ);
1104                         send_message(card, cmsg);
1105                         cmd.command = ISDN_STAT_DCONN;
1106                         cmd.driver = card->myid;
1107                         cmd.arg = plcip->chan;
1108                         card->interface.statcallb(&cmd);
1109                 }
1110                 break;
1111
1112         case CAPI_INFO_IND:     /* Controller/plci */
1113
1114                 if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI)))
1115                         goto notfound;
1116
1117                 if (cmsg->InfoNumber == 0x4000) {
1118                         if (cmsg->InfoElement[0] == 4) {
1119                                 cmd.command = ISDN_STAT_CINF;
1120                                 cmd.driver = card->myid;
1121                                 cmd.arg = plcip->chan;
1122                                 sprintf(cmd.parm.num, "%lu",
1123                                         (unsigned long)
1124                                         ((u32) cmsg->InfoElement[1]
1125                                   | ((u32) (cmsg->InfoElement[2]) << 8)
1126                                  | ((u32) (cmsg->InfoElement[3]) << 16)
1127                                          | ((u32) (cmsg->InfoElement[4]) << 24)));
1128                                 card->interface.statcallb(&cmd);
1129                                 break;
1130                         }
1131                 }
1132                 cdb = capi_cmsg2str(cmsg);
1133                 if (cdb) {
1134                         printk(KERN_WARNING "capidrv-%d: %s\n",
1135                                 card->contrnr, cdb->buf);
1136                         cdebbuf_free(cdb);
1137                 } else
1138                         printk(KERN_WARNING "capidrv-%d: CAPI_INFO_IND InfoNumber %x not handled\n",
1139                                 card->contrnr, cmsg->InfoNumber);
1140
1141                 break;
1142
1143         case CAPI_CONNECT_ACTIVE_CONF:          /* plci */
1144                 goto ignored;
1145         case CAPI_SELECT_B_PROTOCOL_CONF:       /* plci */
1146                 goto ignored;
1147         case CAPI_FACILITY_IND: /* Controller/plci/ncci */
1148                 goto ignored;
1149         case CAPI_FACILITY_CONF:        /* Controller/plci/ncci */
1150                 goto ignored;
1151
1152         case CAPI_INFO_CONF:    /* Controller/plci */
1153                 goto ignored;
1154
1155         default:
1156                 printk(KERN_ERR "capidrv-%d: got %s for plci 0x%x ???",
1157                        card->contrnr,
1158                        capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1159                        cmsg->adr.adrPLCI);
1160         }
1161         return;
1162       ignored:
1163         printk(KERN_INFO "capidrv-%d: %s for plci 0x%x ignored\n",
1164                card->contrnr,
1165                capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1166                cmsg->adr.adrPLCI);
1167         return;
1168       notfound:
1169         printk(KERN_ERR "capidrv-%d: %s: plci 0x%x not found\n",
1170                card->contrnr,
1171                capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1172                cmsg->adr.adrPLCI);
1173         return;
1174 }
1175
1176 static void handle_ncci(_cmsg * cmsg)
1177 {
1178         capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f);
1179         capidrv_plci *plcip;
1180         capidrv_ncci *nccip;
1181         isdn_ctrl cmd;
1182         int len;
1183
1184         if (!card) {
1185                 printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n",
1186                        capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1187                        cmsg->adr.adrController & 0x7f);
1188                 return;
1189         }
1190         switch (CAPICMD(cmsg->Command, cmsg->Subcommand)) {
1191
1192         case CAPI_CONNECT_B3_ACTIVE_IND:        /* ncci */
1193                 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
1194                         goto notfound;
1195
1196                 capi_cmsg_answer(cmsg);
1197                 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_ACTIVE_IND);
1198                 send_message(card, cmsg);
1199
1200                 cmd.command = ISDN_STAT_BCONN;
1201                 cmd.driver = card->myid;
1202                 cmd.arg = nccip->chan;
1203                 card->interface.statcallb(&cmd);
1204
1205                 printk(KERN_INFO "capidrv-%d: chan %d up with ncci 0x%x\n",
1206                        card->contrnr, nccip->chan, nccip->ncci);
1207                 break;
1208
1209         case CAPI_CONNECT_B3_ACTIVE_CONF:       /* ncci */
1210                 goto ignored;
1211
1212         case CAPI_CONNECT_B3_IND:       /* ncci */
1213
1214                 plcip = find_plci_by_ncci(card, cmsg->adr.adrNCCI);
1215                 if (plcip) {
1216                         nccip = new_ncci(card, plcip, cmsg->adr.adrNCCI);
1217                         if (nccip) {
1218                                 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_IND);
1219                                 capi_fill_CONNECT_B3_RESP(cmsg,
1220                                                           global.ap.applid,
1221                                                           card->msgid++,
1222                                                           nccip->ncci,  /* adr */
1223                                                           0,    /* Reject */
1224                                                           NULL  /* NCPI */
1225                                 );
1226                                 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_RESP);
1227                                 send_message(card, cmsg);
1228                                 break;
1229                         }
1230                         printk(KERN_ERR "capidrv-%d: no mem for ncci, sorry\n",                                                 card->contrnr);
1231                 } else {
1232                         printk(KERN_ERR "capidrv-%d: %s: plci for ncci 0x%x not found\n",
1233                            card->contrnr,
1234                            capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1235                                cmsg->adr.adrNCCI);
1236                 }
1237                 capi_fill_CONNECT_B3_RESP(cmsg,
1238                                           global.ap.applid,
1239                                           card->msgid++,
1240                                           cmsg->adr.adrNCCI,
1241                                           2,    /* Reject */
1242                                           NULL  /* NCPI */
1243                 );
1244                 send_message(card, cmsg);
1245                 break;
1246
1247         case CAPI_CONNECT_B3_CONF:      /* ncci */
1248
1249                 if (!(nccip = find_ncci_by_msgid(card,
1250                                                  cmsg->adr.adrNCCI,
1251                                                  cmsg->Messagenumber)))
1252                         goto notfound;
1253
1254                 nccip->ncci = cmsg->adr.adrNCCI;
1255                 if (cmsg->Info) {
1256                         printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for ncci 0x%x\n",
1257                            card->contrnr,
1258                            capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1259                                cmsg->Info, capi_info2str(cmsg->Info), 
1260                                cmsg->adr.adrNCCI);
1261                 }
1262
1263                 if (cmsg->Info)
1264                         ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_CONF_ERROR);
1265                 else
1266                         ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_CONF_OK);
1267                 break;
1268
1269         case CAPI_CONNECT_B3_T90_ACTIVE_IND:    /* ncci */
1270                 capi_cmsg_answer(cmsg);
1271                 send_message(card, cmsg);
1272                 break;
1273
1274         case CAPI_DATA_B3_IND:  /* ncci */
1275                 /* handled in handle_data() */
1276                 goto ignored;
1277
1278         case CAPI_DATA_B3_CONF: /* ncci */
1279                 if (cmsg->Info) {
1280                         printk(KERN_WARNING "CAPI_DATA_B3_CONF: Info %x - %s\n",
1281                                 cmsg->Info, capi_info2str(cmsg->Info));
1282                 }
1283                 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
1284                         goto notfound;
1285
1286                 len = capidrv_del_ack(nccip, cmsg->DataHandle);
1287                 if (len < 0)
1288                         break;
1289                 cmd.command = ISDN_STAT_BSENT;
1290                 cmd.driver = card->myid;
1291                 cmd.arg = nccip->chan;
1292                 cmd.parm.length = len;
1293                 card->interface.statcallb(&cmd);
1294                 break;
1295
1296         case CAPI_DISCONNECT_B3_IND:    /* ncci */
1297                 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
1298                         goto notfound;
1299
1300                 card->bchans[nccip->chan].disconnecting = 1;
1301                 ncci_change_state(card, nccip, EV_NCCI_DISCONNECT_B3_IND);
1302                 capi_cmsg_answer(cmsg);
1303                 ncci_change_state(card, nccip, EV_NCCI_DISCONNECT_B3_RESP);
1304                 send_message(card, cmsg);
1305                 break;
1306
1307         case CAPI_DISCONNECT_B3_CONF:   /* ncci */
1308                 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
1309                         goto notfound;
1310                 if (cmsg->Info) {
1311                         printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for ncci 0x%x\n",
1312                            card->contrnr,
1313                            capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1314                                cmsg->Info, capi_info2str(cmsg->Info), 
1315                                cmsg->adr.adrNCCI);
1316                         ncci_change_state(card, nccip, EV_NCCI_DISCONNECT_B3_CONF_ERROR);
1317                 }
1318                 break;
1319
1320         case CAPI_RESET_B3_IND: /* ncci */
1321                 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
1322                         goto notfound;
1323                 ncci_change_state(card, nccip, EV_NCCI_RESET_B3_IND);
1324                 capi_cmsg_answer(cmsg);
1325                 send_message(card, cmsg);
1326                 break;
1327
1328         case CAPI_RESET_B3_CONF:        /* ncci */
1329                 goto ignored;   /* $$$$ */
1330
1331         case CAPI_FACILITY_IND: /* Controller/plci/ncci */
1332                 goto ignored;
1333         case CAPI_FACILITY_CONF:        /* Controller/plci/ncci */
1334                 goto ignored;
1335
1336         default:
1337                 printk(KERN_ERR "capidrv-%d: got %s for ncci 0x%x ???",
1338                        card->contrnr,
1339                        capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1340                        cmsg->adr.adrNCCI);
1341         }
1342         return;
1343       ignored:
1344         printk(KERN_INFO "capidrv-%d: %s for ncci 0x%x ignored\n",
1345                card->contrnr,
1346                capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1347                cmsg->adr.adrNCCI);
1348         return;
1349       notfound:
1350         printk(KERN_ERR "capidrv-%d: %s: ncci 0x%x not found\n",
1351                card->contrnr,
1352                capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1353                cmsg->adr.adrNCCI);
1354 }
1355
1356
1357 static void handle_data(_cmsg * cmsg, struct sk_buff *skb)
1358 {
1359         capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f);
1360         capidrv_ncci *nccip;
1361
1362         if (!card) {
1363                 printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n",
1364                        capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1365                        cmsg->adr.adrController & 0x7f);
1366                 kfree_skb(skb);
1367                 return;
1368         }
1369         if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI))) {
1370                 printk(KERN_ERR "capidrv-%d: %s: ncci 0x%x not found\n",
1371                        card->contrnr,
1372                        capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1373                        cmsg->adr.adrNCCI);
1374                 kfree_skb(skb);
1375                 return;
1376         }
1377         (void) skb_pull(skb, CAPIMSG_LEN(skb->data));
1378         card->interface.rcvcallb_skb(card->myid, nccip->chan, skb);
1379         capi_cmsg_answer(cmsg);
1380         send_message(card, cmsg);
1381 }
1382
1383 static _cmsg s_cmsg;
1384
1385 static void capidrv_recv_message(struct capi20_appl *ap, struct sk_buff *skb)
1386 {
1387         capi_message2cmsg(&s_cmsg, skb->data);
1388         if (debugmode > 3) {
1389                 _cdebbuf *cdb = capi_cmsg2str(&s_cmsg);
1390
1391                 if (cdb) {
1392                         printk(KERN_DEBUG "%s: applid=%d %s\n", __func__,
1393                                 ap->applid, cdb->buf);
1394                         cdebbuf_free(cdb);
1395                 } else
1396                         printk(KERN_DEBUG "%s: applid=%d %s not traced\n",
1397                                 __func__, ap->applid,
1398                                 capi_cmd2str(s_cmsg.Command, s_cmsg.Subcommand));
1399         }
1400         if (s_cmsg.Command == CAPI_DATA_B3
1401             && s_cmsg.Subcommand == CAPI_IND) {
1402                 handle_data(&s_cmsg, skb);
1403                 return;
1404         }
1405         if ((s_cmsg.adr.adrController & 0xffffff00) == 0)
1406                 handle_controller(&s_cmsg);
1407         else if ((s_cmsg.adr.adrPLCI & 0xffff0000) == 0)
1408                 handle_plci(&s_cmsg);
1409         else
1410                 handle_ncci(&s_cmsg);
1411         /*
1412          * data of skb used in s_cmsg,
1413          * free data when s_cmsg is not used again
1414          * thanks to Lars Heete <hel@admin.de>
1415          */
1416         kfree_skb(skb);
1417 }
1418
1419 /* ------------------------------------------------------------------- */
1420
1421 #define PUTBYTE_TO_STATUS(card, byte) \
1422         do { \
1423                 *(card)->q931_write++ = (byte); \
1424                 if ((card)->q931_write > (card)->q931_end) \
1425                         (card)->q931_write = (card)->q931_buf; \
1426         } while (0)
1427
1428 static void handle_dtrace_data(capidrv_contr *card,
1429                              int send, int level2, u8 *data, u16 len)
1430 {
1431         u8 *p, *end;
1432         isdn_ctrl cmd;
1433
1434         if (!len) {
1435                 printk(KERN_DEBUG "capidrv-%d: avmb1_q931_data: len == %d\n",
1436                                 card->contrnr, len);
1437                 return;
1438         }
1439
1440         if (level2) {
1441                 PUTBYTE_TO_STATUS(card, 'D');
1442                 PUTBYTE_TO_STATUS(card, '2');
1443                 PUTBYTE_TO_STATUS(card, send ? '>' : '<');
1444                 PUTBYTE_TO_STATUS(card, ':');
1445         } else {
1446                 PUTBYTE_TO_STATUS(card, 'D');
1447                 PUTBYTE_TO_STATUS(card, '3');
1448                 PUTBYTE_TO_STATUS(card, send ? '>' : '<');
1449                 PUTBYTE_TO_STATUS(card, ':');
1450         }
1451
1452         for (p = data, end = data+len; p < end; p++) {
1453                 u8 w;
1454                 PUTBYTE_TO_STATUS(card, ' ');
1455                 w = (*p >> 4) & 0xf;
1456                 PUTBYTE_TO_STATUS(card, (w < 10) ? '0'+w : 'A'-10+w);
1457                 w = *p & 0xf;
1458                 PUTBYTE_TO_STATUS(card, (w < 10) ? '0'+w : 'A'-10+w);
1459         }
1460         PUTBYTE_TO_STATUS(card, '\n');
1461
1462         cmd.command = ISDN_STAT_STAVAIL;
1463         cmd.driver = card->myid;
1464         cmd.arg = len*3+5;
1465         card->interface.statcallb(&cmd);
1466 }
1467
1468 /* ------------------------------------------------------------------- */
1469
1470 static _cmsg cmdcmsg;
1471
1472 static int capidrv_ioctl(isdn_ctrl * c, capidrv_contr * card)
1473 {
1474         switch (c->arg) {
1475         case 1:
1476                 debugmode = (int)(*((unsigned int *)c->parm.num));
1477                 printk(KERN_DEBUG "capidrv-%d: debugmode=%d\n",
1478                                 card->contrnr, debugmode);
1479                 return 0;
1480         default:
1481                 printk(KERN_DEBUG "capidrv-%d: capidrv_ioctl(%ld) called ??\n",
1482                                 card->contrnr, c->arg);
1483                 return -EINVAL;
1484         }
1485         return -EINVAL;
1486 }
1487
1488 /*
1489  * Handle leased lines (CAPI-Bundling)
1490  */
1491
1492 struct internal_bchannelinfo {
1493    unsigned short channelalloc;
1494    unsigned short operation;
1495    unsigned char  cmask[31];
1496 };
1497
1498 static int decodeFVteln(char *teln, unsigned long *bmaskp, int *activep)
1499 {
1500         unsigned long bmask = 0;
1501         int active = !0;
1502         char *s;
1503         int i;
1504
1505         if (strncmp(teln, "FV:", 3) != 0)
1506                 return 1;
1507         s = teln + 3;
1508         while (*s && *s == ' ') s++;
1509         if (!*s) return -2;
1510         if (*s == 'p' || *s == 'P') {
1511                 active = 0;
1512                 s++;
1513         }
1514         if (*s == 'a' || *s == 'A') {
1515                 active = !0;
1516                 s++;
1517         }
1518         while (*s) {
1519                 int digit1 = 0;
1520                 int digit2 = 0;
1521                 if (!isdigit(*s)) return -3;
1522                 while (isdigit(*s)) { digit1 = digit1*10 + (*s - '0'); s++; }
1523                 if (digit1 <= 0 || digit1 > 30) return -4;
1524                 if (*s == 0 || *s == ',' || *s == ' ') {
1525                         bmask |= (1 << digit1);
1526                         digit1 = 0;
1527                         if (*s) s++;
1528                         continue;
1529                 }
1530                 if (*s != '-') return -5;
1531                 s++;
1532                 if (!isdigit(*s)) return -3;
1533                 while (isdigit(*s)) { digit2 = digit2*10 + (*s - '0'); s++; }
1534                 if (digit2 <= 0 || digit2 > 30) return -4;
1535                 if (*s == 0 || *s == ',' || *s == ' ') {
1536                         if (digit1 > digit2)
1537                                 for (i = digit2; i <= digit1 ; i++)
1538                                         bmask |= (1 << i);
1539                         else 
1540                                 for (i = digit1; i <= digit2 ; i++)
1541                                         bmask |= (1 << i);
1542                         digit1 = digit2 = 0;
1543                         if (*s) s++;
1544                         continue;
1545                 }
1546                 return -6;
1547         }
1548         if (activep) *activep = active;
1549         if (bmaskp) *bmaskp = bmask;
1550         return 0;
1551 }
1552
1553 static int FVteln2capi20(char *teln, u8 AdditionalInfo[1+2+2+31])
1554 {
1555         unsigned long bmask;
1556         int active;
1557         int rc, i;
1558    
1559         rc = decodeFVteln(teln, &bmask, &active);
1560         if (rc) return rc;
1561         /* Length */
1562         AdditionalInfo[0] = 2+2+31;
1563         /* Channel: 3 => use channel allocation */
1564         AdditionalInfo[1] = 3; AdditionalInfo[2] = 0;
1565         /* Operation: 0 => DTE mode, 1 => DCE mode */
1566         if (active) {
1567                 AdditionalInfo[3] = 0; AdditionalInfo[4] = 0;
1568         } else {
1569                 AdditionalInfo[3] = 1; AdditionalInfo[4] = 0;
1570         }
1571         /* Channel mask array */
1572         AdditionalInfo[5] = 0; /* no D-Channel */
1573         for (i=1; i <= 30; i++)
1574                 AdditionalInfo[5+i] = (bmask & (1 << i)) ? 0xff : 0;
1575         return 0;
1576 }
1577
1578 static int capidrv_command(isdn_ctrl * c, capidrv_contr * card)
1579 {
1580         isdn_ctrl cmd;
1581         struct capidrv_bchan *bchan;
1582         struct capidrv_plci *plcip;
1583         u8 AdditionalInfo[1+2+2+31];
1584         int rc, isleasedline = 0;
1585
1586         if (c->command == ISDN_CMD_IOCTL)
1587                 return capidrv_ioctl(c, card);
1588
1589         switch (c->command) {
1590         case ISDN_CMD_DIAL:{
1591                         u8 calling[ISDN_MSNLEN + 3];
1592                         u8 called[ISDN_MSNLEN + 2];
1593
1594                         if (debugmode)
1595                                 printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_DIAL(ch=%ld,\"%s,%d,%d,%s\")\n",
1596                                         card->contrnr,
1597                                         c->arg,
1598                                         c->parm.setup.phone,
1599                                         c->parm.setup.si1,
1600                                         c->parm.setup.si2,
1601                                         c->parm.setup.eazmsn);
1602
1603                         bchan = &card->bchans[c->arg % card->nbchan];
1604
1605                         if (bchan->plcip) {
1606                                 printk(KERN_ERR "capidrv-%d: dail ch=%ld,\"%s,%d,%d,%s\" in use (plci=0x%x)\n",
1607                                         card->contrnr,
1608                                         c->arg, 
1609                                         c->parm.setup.phone,
1610                                         c->parm.setup.si1,
1611                                         c->parm.setup.si2,
1612                                         c->parm.setup.eazmsn,
1613                                         bchan->plcip->plci);
1614                                 return 0;
1615                         }
1616                         bchan->si1 = c->parm.setup.si1;
1617                         bchan->si2 = c->parm.setup.si2;
1618
1619                         strncpy(bchan->num, c->parm.setup.phone, sizeof(bchan->num));
1620                         strncpy(bchan->mynum, c->parm.setup.eazmsn, sizeof(bchan->mynum));
1621                         rc = FVteln2capi20(bchan->num, AdditionalInfo);
1622                         isleasedline = (rc == 0);
1623                         if (rc < 0)
1624                                 printk(KERN_ERR "capidrv-%d: WARNING: invalid leased linedefinition \"%s\"\n", card->contrnr, bchan->num);
1625
1626                         if (isleasedline) {
1627                                 calling[0] = 0;
1628                                 called[0] = 0;
1629                                 if (debugmode)
1630                                         printk(KERN_DEBUG "capidrv-%d: connecting leased line\n", card->contrnr);
1631                         } else {
1632                                 calling[0] = strlen(bchan->mynum) + 2;
1633                                 calling[1] = 0;
1634                                 calling[2] = 0x80;
1635                                 strncpy(calling + 3, bchan->mynum, ISDN_MSNLEN);
1636                                 called[0] = strlen(bchan->num) + 1;
1637                                 called[1] = 0x80;
1638                                 strncpy(called + 2, bchan->num, ISDN_MSNLEN);
1639                         }
1640
1641                         capi_fill_CONNECT_REQ(&cmdcmsg,
1642                                               global.ap.applid,
1643                                               card->msgid++,
1644                                               card->contrnr,    /* adr */
1645                                           si2cip(bchan->si1, bchan->si2),       /* cipvalue */
1646                                               called,   /* CalledPartyNumber */
1647                                               calling,  /* CallingPartyNumber */
1648                                               NULL,     /* CalledPartySubaddress */
1649                                               NULL,     /* CallingPartySubaddress */
1650                                             b1prot(bchan->l2, bchan->l3),       /* B1protocol */
1651                                             b2prot(bchan->l2, bchan->l3),       /* B2protocol */
1652                                             b3prot(bchan->l2, bchan->l3),       /* B3protocol */
1653                                             b1config(bchan->l2, bchan->l3),     /* B1configuration */
1654                                               NULL,     /* B2configuration */
1655                                               NULL,     /* B3configuration */
1656                                               NULL,     /* BC */
1657                                               NULL,     /* LLC */
1658                                               NULL,     /* HLC */
1659                                               /* BChannelinformation */
1660                                               isleasedline ? AdditionalInfo : NULL,
1661                                               NULL,     /* Keypadfacility */
1662                                               NULL,     /* Useruserdata */
1663                                               NULL      /* Facilitydataarray */
1664                             );
1665                         if ((plcip = new_plci(card, (c->arg % card->nbchan))) == NULL) {
1666                                 cmd.command = ISDN_STAT_DHUP;
1667                                 cmd.driver = card->myid;
1668                                 cmd.arg = (c->arg % card->nbchan);
1669                                 card->interface.statcallb(&cmd);
1670                                 return -1;
1671                         }
1672                         plcip->msgid = cmdcmsg.Messagenumber;
1673                         plcip->leasedline = isleasedline;
1674                         plci_change_state(card, plcip, EV_PLCI_CONNECT_REQ);
1675                         send_message(card, &cmdcmsg);
1676                         return 0;
1677                 }
1678
1679         case ISDN_CMD_ACCEPTD:
1680
1681                 bchan = &card->bchans[c->arg % card->nbchan];
1682                 if (debugmode)
1683                         printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_ACCEPTD(ch=%ld) l2=%d l3=%d\n",
1684                                card->contrnr,
1685                                c->arg, bchan->l2, bchan->l3);
1686
1687                 capi_fill_CONNECT_RESP(&cmdcmsg,
1688                                        global.ap.applid,
1689                                        card->msgid++,
1690                                        bchan->plcip->plci,      /* adr */
1691                                        0,       /* Reject */
1692                                        b1prot(bchan->l2, bchan->l3),    /* B1protocol */
1693                                        b2prot(bchan->l2, bchan->l3),    /* B2protocol */
1694                                        b3prot(bchan->l2, bchan->l3),    /* B3protocol */
1695                                        b1config(bchan->l2, bchan->l3),  /* B1configuration */
1696                                        NULL,    /* B2configuration */
1697                                        NULL,    /* B3configuration */
1698                                        NULL,    /* ConnectedNumber */
1699                                        NULL,    /* ConnectedSubaddress */
1700                                        NULL,    /* LLC */
1701                                        NULL,    /* BChannelinformation */
1702                                        NULL,    /* Keypadfacility */
1703                                        NULL,    /* Useruserdata */
1704                                        NULL     /* Facilitydataarray */
1705                 );
1706                 capi_cmsg2message(&cmdcmsg, cmdcmsg.buf);
1707                 plci_change_state(card, bchan->plcip, EV_PLCI_CONNECT_RESP);
1708                 send_message(card, &cmdcmsg);
1709                 return 0;
1710
1711         case ISDN_CMD_ACCEPTB:
1712                 if (debugmode)
1713                         printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_ACCEPTB(ch=%ld)\n",
1714                                card->contrnr,
1715                                c->arg);
1716                 return -ENOSYS;
1717
1718         case ISDN_CMD_HANGUP:
1719                 if (debugmode)
1720                         printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_HANGUP(ch=%ld)\n",
1721                                card->contrnr,
1722                                c->arg);
1723                 bchan = &card->bchans[c->arg % card->nbchan];
1724
1725                 if (bchan->disconnecting) {
1726                         if (debugmode)
1727                                 printk(KERN_DEBUG "capidrv-%d: chan %ld already disconnecting ...\n",
1728                                        card->contrnr,
1729                                        c->arg);
1730                         return 0;
1731                 }
1732                 if (bchan->nccip) {
1733                         bchan->disconnecting = 1;
1734                         capi_fill_DISCONNECT_B3_REQ(&cmdcmsg,
1735                                                     global.ap.applid,
1736                                                     card->msgid++,
1737                                                     bchan->nccip->ncci,
1738                                                     NULL        /* NCPI */
1739                         );
1740                         ncci_change_state(card, bchan->nccip, EV_NCCI_DISCONNECT_B3_REQ);
1741                         send_message(card, &cmdcmsg);
1742                         return 0;
1743                 } else if (bchan->plcip) {
1744                         if (bchan->plcip->state == ST_PLCI_INCOMING) {
1745                                 /*
1746                                  * just ignore, we a called from
1747                                  * isdn_status_callback(),
1748                                  * which will return 0 or 2, this is handled
1749                                  * by the CONNECT_IND handler
1750                                  */
1751                                 bchan->disconnecting = 1;
1752                                 return 0;
1753                         } else if (bchan->plcip->plci) {
1754                                 bchan->disconnecting = 1;
1755                                 capi_fill_DISCONNECT_REQ(&cmdcmsg,
1756                                                          global.ap.applid,
1757                                                          card->msgid++,
1758                                                       bchan->plcip->plci,
1759                                                          NULL,  /* BChannelinformation */
1760                                                          NULL,  /* Keypadfacility */
1761                                                          NULL,  /* Useruserdata */
1762                                                          NULL   /* Facilitydataarray */
1763                                 );
1764                                 plci_change_state(card, bchan->plcip, EV_PLCI_DISCONNECT_REQ);
1765                                 send_message(card, &cmdcmsg);
1766                                 return 0;
1767                         } else {
1768                                 printk(KERN_ERR "capidrv-%d: chan %ld disconnect request while waiting for CONNECT_CONF\n",
1769                                        card->contrnr,
1770                                        c->arg);
1771                                 return -EINVAL;
1772                         }
1773                 }
1774                 printk(KERN_ERR "capidrv-%d: chan %ld disconnect request on free channel\n",
1775                                        card->contrnr,
1776                                        c->arg);
1777                 return -EINVAL;
1778 /* ready */
1779
1780         case ISDN_CMD_SETL2:
1781                 if (debugmode)
1782                         printk(KERN_DEBUG "capidrv-%d: set L2 on chan %ld to %ld\n",
1783                                card->contrnr,
1784                                (c->arg & 0xff), (c->arg >> 8));
1785                 bchan = &card->bchans[(c->arg & 0xff) % card->nbchan];
1786                 bchan->l2 = (c->arg >> 8);
1787                 return 0;
1788
1789         case ISDN_CMD_SETL3:
1790                 if (debugmode)
1791                         printk(KERN_DEBUG "capidrv-%d: set L3 on chan %ld to %ld\n",
1792                                card->contrnr,
1793                                (c->arg & 0xff), (c->arg >> 8));
1794                 bchan = &card->bchans[(c->arg & 0xff) % card->nbchan];
1795                 bchan->l3 = (c->arg >> 8);
1796                 return 0;
1797
1798         case ISDN_CMD_SETEAZ:
1799                 if (debugmode)
1800                         printk(KERN_DEBUG "capidrv-%d: set EAZ \"%s\" on chan %ld\n",
1801                                card->contrnr,
1802                                c->parm.num, c->arg);
1803                 bchan = &card->bchans[c->arg % card->nbchan];
1804                 strncpy(bchan->msn, c->parm.num, ISDN_MSNLEN);
1805                 return 0;
1806
1807         case ISDN_CMD_CLREAZ:
1808                 if (debugmode)
1809                         printk(KERN_DEBUG "capidrv-%d: clearing EAZ on chan %ld\n",
1810                                         card->contrnr, c->arg);
1811                 bchan = &card->bchans[c->arg % card->nbchan];
1812                 bchan->msn[0] = 0;
1813                 return 0;
1814
1815         default:
1816                 printk(KERN_ERR "capidrv-%d: ISDN_CMD_%d, Huh?\n",
1817                                         card->contrnr, c->command);
1818                 return -EINVAL;
1819         }
1820         return 0;
1821 }
1822
1823 static int if_command(isdn_ctrl * c)
1824 {
1825         capidrv_contr *card = findcontrbydriverid(c->driver);
1826
1827         if (card)
1828                 return capidrv_command(c, card);
1829
1830         printk(KERN_ERR
1831              "capidrv: if_command %d called with invalid driverId %d!\n",
1832                                                 c->command, c->driver);
1833         return -ENODEV;
1834 }
1835
1836 static _cmsg sendcmsg;
1837
1838 static int if_sendbuf(int id, int channel, int doack, struct sk_buff *skb)
1839 {
1840         capidrv_contr *card = findcontrbydriverid(id);
1841         capidrv_bchan *bchan;
1842         capidrv_ncci *nccip;
1843         int len = skb->len;
1844         int msglen;
1845         u16 errcode;
1846         u16 datahandle;
1847         u32 data;
1848
1849         if (!card) {
1850                 printk(KERN_ERR "capidrv: if_sendbuf called with invalid driverId %d!\n",
1851                        id);
1852                 return 0;
1853         }
1854         if (debugmode > 4)
1855                 printk(KERN_DEBUG "capidrv-%d: sendbuf len=%d skb=%p doack=%d\n",
1856                                         card->contrnr, len, skb, doack);
1857         bchan = &card->bchans[channel % card->nbchan];
1858         nccip = bchan->nccip;
1859         if (!nccip || nccip->state != ST_NCCI_ACTIVE) {
1860                 printk(KERN_ERR "capidrv-%d: if_sendbuf: %s:%d: chan not up!\n",
1861                        card->contrnr, card->name, channel);
1862                 return 0;
1863         }
1864         datahandle = nccip->datahandle;
1865
1866         /*
1867          * Here we copy pointer skb->data into the 32-bit 'Data' field.
1868          * The 'Data' field is not used in practice in linux kernel
1869          * (neither in 32 or 64 bit), but should have some value,
1870          * since a CAPI message trace will display it.
1871          *
1872          * The correct value in the 32 bit case is the address of the
1873          * data, in 64 bit it makes no sense, we use 0 there.
1874          */
1875
1876 #ifdef CONFIG_64BIT
1877         data = 0;
1878 #else
1879         data = (unsigned long) skb->data;
1880 #endif
1881
1882         capi_fill_DATA_B3_REQ(&sendcmsg, global.ap.applid, card->msgid++,
1883                               nccip->ncci,      /* adr */
1884                               data,             /* Data */
1885                               skb->len,         /* DataLength */
1886                               datahandle,       /* DataHandle */
1887                               0 /* Flags */
1888             );
1889
1890         if (capidrv_add_ack(nccip, datahandle, doack ? (int)skb->len : -1) < 0)
1891            return 0;
1892
1893         capi_cmsg2message(&sendcmsg, sendcmsg.buf);
1894         msglen = CAPIMSG_LEN(sendcmsg.buf);
1895         if (skb_headroom(skb) < msglen) {
1896                 struct sk_buff *nskb = skb_realloc_headroom(skb, msglen);
1897                 if (!nskb) {
1898                         printk(KERN_ERR "capidrv-%d: if_sendbuf: no memory\n",
1899                                 card->contrnr);
1900                         (void)capidrv_del_ack(nccip, datahandle);
1901                         return 0;
1902                 }
1903                 printk(KERN_DEBUG "capidrv-%d: only %d bytes headroom, need %d\n",
1904                        card->contrnr, skb_headroom(skb), msglen);
1905                 memcpy(skb_push(nskb, msglen), sendcmsg.buf, msglen);
1906                 errcode = capi20_put_message(&global.ap, nskb);
1907                 if (errcode == CAPI_NOERROR) {
1908                         dev_kfree_skb(skb);
1909                         nccip->datahandle++;
1910                         return len;
1911                 }
1912                 if (debugmode > 3)
1913                         printk(KERN_DEBUG "capidrv-%d: sendbuf putmsg ret(%x) - %s\n",
1914                                 card->contrnr, errcode, capi_info2str(errcode));
1915                 (void)capidrv_del_ack(nccip, datahandle);
1916                 dev_kfree_skb(nskb);
1917                 return errcode == CAPI_SENDQUEUEFULL ? 0 : -1;
1918         } else {
1919                 memcpy(skb_push(skb, msglen), sendcmsg.buf, msglen);
1920                 errcode = capi20_put_message(&global.ap, skb);
1921                 if (errcode == CAPI_NOERROR) {
1922                         nccip->datahandle++;
1923                         return len;
1924                 }
1925                 if (debugmode > 3)
1926                         printk(KERN_DEBUG "capidrv-%d: sendbuf putmsg ret(%x) - %s\n",
1927                                 card->contrnr, errcode, capi_info2str(errcode));
1928                 skb_pull(skb, msglen);
1929                 (void)capidrv_del_ack(nccip, datahandle);
1930                 return errcode == CAPI_SENDQUEUEFULL ? 0 : -1;
1931         }
1932 }
1933
1934 static int if_readstat(u8 __user *buf, int len, int id, int channel)
1935 {
1936         capidrv_contr *card = findcontrbydriverid(id);
1937         int count;
1938         u8 __user *p;
1939
1940         if (!card) {
1941                 printk(KERN_ERR "capidrv: if_readstat called with invalid driverId %d!\n",
1942                        id);
1943                 return -ENODEV;
1944         }
1945
1946         for (p=buf, count=0; count < len; p++, count++) {
1947                 if (put_user(*card->q931_read++, p))
1948                         return -EFAULT;
1949                 if (card->q931_read > card->q931_end)
1950                         card->q931_read = card->q931_buf;
1951         }
1952         return count;
1953
1954 }
1955
1956 static void enable_dchannel_trace(capidrv_contr *card)
1957 {
1958         u8 manufacturer[CAPI_MANUFACTURER_LEN];
1959         capi_version version;
1960         u16 contr = card->contrnr;
1961         u16 errcode;
1962         u16 avmversion[3];
1963
1964         errcode = capi20_get_manufacturer(contr, manufacturer);
1965         if (errcode != CAPI_NOERROR) {
1966            printk(KERN_ERR "%s: can't get manufacturer (0x%x)\n",
1967                         card->name, errcode);
1968            return;
1969         }
1970         if (strstr(manufacturer, "AVM") == NULL) {
1971            printk(KERN_ERR "%s: not from AVM, no d-channel trace possible (%s)\n",
1972                         card->name, manufacturer);
1973            return;
1974         }
1975         errcode = capi20_get_version(contr, &version);
1976         if (errcode != CAPI_NOERROR) {
1977            printk(KERN_ERR "%s: can't get version (0x%x)\n",
1978                         card->name, errcode);
1979            return;
1980         }
1981         avmversion[0] = (version.majormanuversion >> 4) & 0x0f;
1982         avmversion[1] = (version.majormanuversion << 4) & 0xf0;
1983         avmversion[1] |= (version.minormanuversion >> 4) & 0x0f;
1984         avmversion[2] |= version.minormanuversion & 0x0f;
1985
1986         if (avmversion[0] > 3 || (avmversion[0] == 3 && avmversion[1] > 5)) {
1987                 printk(KERN_INFO "%s: D2 trace enabled\n", card->name);
1988                 capi_fill_MANUFACTURER_REQ(&cmdcmsg, global.ap.applid,
1989                                            card->msgid++,
1990                                            contr,
1991                                            0x214D5641,  /* ManuID */
1992                                            0,           /* Class */
1993                                            1,           /* Function */
1994                                            (_cstruct)"\004\200\014\000\000");
1995         } else {
1996                 printk(KERN_INFO "%s: D3 trace enabled\n", card->name);
1997                 capi_fill_MANUFACTURER_REQ(&cmdcmsg, global.ap.applid,
1998                                            card->msgid++,
1999                                            contr,
2000                                            0x214D5641,  /* ManuID */
2001                                            0,           /* Class */
2002                                            1,           /* Function */
2003                                            (_cstruct)"\004\002\003\000\000");
2004         }
2005         send_message(card, &cmdcmsg);
2006 }
2007
2008
2009 static void send_listen(capidrv_contr *card)
2010 {
2011         capi_fill_LISTEN_REQ(&cmdcmsg, global.ap.applid,
2012                              card->msgid++,
2013                              card->contrnr, /* controller */
2014                              1 << 6,    /* Infomask */
2015                              card->cipmask,
2016                              card->cipmask2,
2017                              NULL, NULL);
2018         listen_change_state(card, EV_LISTEN_REQ);
2019         send_message(card, &cmdcmsg);
2020 }
2021
2022 static void listentimerfunc(unsigned long x)
2023 {
2024         capidrv_contr *card = (capidrv_contr *)x;
2025         if (card->state != ST_LISTEN_NONE && card->state != ST_LISTEN_ACTIVE)
2026                 printk(KERN_ERR "%s: controller dead ??\n", card->name);
2027         send_listen(card);
2028         mod_timer(&card->listentimer, jiffies + 60*HZ);
2029 }
2030
2031
2032 static int capidrv_addcontr(u16 contr, struct capi_profile *profp)
2033 {
2034         capidrv_contr *card;
2035         unsigned long flags;
2036         isdn_ctrl cmd;
2037         char id[20];
2038         int i;
2039
2040         sprintf(id, "capidrv-%d", contr);
2041         if (!try_module_get(THIS_MODULE)) {
2042                 printk(KERN_WARNING "capidrv: (%s) Could not reserve module\n", id);
2043                 return -1;
2044         }
2045         if (!(card = kzalloc(sizeof(capidrv_contr), GFP_ATOMIC))) {
2046                 printk(KERN_WARNING
2047                  "capidrv: (%s) Could not allocate contr-struct.\n", id);
2048                 return -1;
2049         }
2050         card->owner = THIS_MODULE;
2051         init_timer(&card->listentimer);
2052         strcpy(card->name, id);
2053         card->contrnr = contr;
2054         card->nbchan = profp->nbchannel;
2055         card->bchans = kmalloc(sizeof(capidrv_bchan) * card->nbchan, GFP_ATOMIC);
2056         if (!card->bchans) {
2057                 printk(KERN_WARNING
2058                 "capidrv: (%s) Could not allocate bchan-structs.\n", id);
2059                 module_put(card->owner);
2060                 kfree(card);
2061                 return -1;
2062         }
2063         card->interface.channels = profp->nbchannel;
2064         card->interface.maxbufsize = 2048;
2065         card->interface.command = if_command;
2066         card->interface.writebuf_skb = if_sendbuf;
2067         card->interface.writecmd = NULL;
2068         card->interface.readstat = if_readstat;
2069         card->interface.features = ISDN_FEATURE_L2_HDLC |
2070                                    ISDN_FEATURE_L2_TRANS |
2071                                    ISDN_FEATURE_L3_TRANS |
2072                                    ISDN_FEATURE_P_UNKNOWN |
2073                                    ISDN_FEATURE_L2_X75I |
2074                                    ISDN_FEATURE_L2_X75UI |
2075                                    ISDN_FEATURE_L2_X75BUI;
2076         if (profp->support1 & (1<<2))
2077                 card->interface.features |= ISDN_FEATURE_L2_V11096 |
2078                                             ISDN_FEATURE_L2_V11019 |
2079                                             ISDN_FEATURE_L2_V11038;
2080         if (profp->support1 & (1<<8))
2081                 card->interface.features |= ISDN_FEATURE_L2_MODEM;
2082         card->interface.hl_hdrlen = 22; /* len of DATA_B3_REQ */
2083         strncpy(card->interface.id, id, sizeof(card->interface.id) - 1);
2084
2085
2086         card->q931_read = card->q931_buf;
2087         card->q931_write = card->q931_buf;
2088         card->q931_end = card->q931_buf + sizeof(card->q931_buf) - 1;
2089
2090         if (!register_isdn(&card->interface)) {
2091                 printk(KERN_ERR "capidrv: Unable to register contr %s\n", id);
2092                 kfree(card->bchans);
2093                 module_put(card->owner);
2094                 kfree(card);
2095                 return -1;
2096         }
2097         card->myid = card->interface.channels;
2098         memset(card->bchans, 0, sizeof(capidrv_bchan) * card->nbchan);
2099         for (i = 0; i < card->nbchan; i++) {
2100                 card->bchans[i].contr = card;
2101         }
2102
2103         spin_lock_irqsave(&global_lock, flags);
2104         card->next = global.contr_list;
2105         global.contr_list = card;
2106         global.ncontr++;
2107         spin_unlock_irqrestore(&global_lock, flags);
2108
2109         cmd.command = ISDN_STAT_RUN;
2110         cmd.driver = card->myid;
2111         card->interface.statcallb(&cmd);
2112
2113         card->cipmask = 0x1FFF03FF;     /* any */
2114         card->cipmask2 = 0;
2115
2116         card->listentimer.data = (unsigned long)card;
2117         card->listentimer.function = listentimerfunc;
2118         send_listen(card);
2119         mod_timer(&card->listentimer, jiffies + 60*HZ);
2120
2121         printk(KERN_INFO "%s: now up (%d B channels)\n",
2122                 card->name, card->nbchan);
2123
2124         enable_dchannel_trace(card);
2125
2126         return 0;
2127 }
2128
2129 static int capidrv_delcontr(u16 contr)
2130 {
2131         capidrv_contr **pp, *card;
2132         unsigned long flags;
2133         isdn_ctrl cmd;
2134
2135         spin_lock_irqsave(&global_lock, flags);
2136         for (card = global.contr_list; card; card = card->next) {
2137                 if (card->contrnr == contr)
2138                         break;
2139         }
2140         if (!card) {
2141                 spin_unlock_irqrestore(&global_lock, flags);
2142                 printk(KERN_ERR "capidrv: delcontr: no contr %u\n", contr);
2143                 return -1;
2144         }
2145
2146         /* FIXME: maybe a race condition the card should be removed
2147          * here from global list /kkeil
2148          */
2149         spin_unlock_irqrestore(&global_lock, flags);
2150
2151         del_timer(&card->listentimer);
2152
2153         if (debugmode)
2154                 printk(KERN_DEBUG "capidrv-%d: id=%d unloading\n",
2155                                         card->contrnr, card->myid);
2156
2157         cmd.command = ISDN_STAT_STOP;
2158         cmd.driver = card->myid;
2159         card->interface.statcallb(&cmd);
2160
2161         while (card->nbchan) {
2162
2163                 cmd.command = ISDN_STAT_DISCH;
2164                 cmd.driver = card->myid;
2165                 cmd.arg = card->nbchan-1;
2166                 cmd.parm.num[0] = 0;
2167                 if (debugmode)
2168                         printk(KERN_DEBUG "capidrv-%d: id=%d disable chan=%ld\n",
2169                                         card->contrnr, card->myid, cmd.arg);
2170                 card->interface.statcallb(&cmd);
2171
2172                 if (card->bchans[card->nbchan-1].nccip)
2173                         free_ncci(card, card->bchans[card->nbchan-1].nccip);
2174                 if (card->bchans[card->nbchan-1].plcip)
2175                         free_plci(card, card->bchans[card->nbchan-1].plcip);
2176                 if (card->plci_list)
2177                         printk(KERN_ERR "capidrv: bug in free_plci()\n");
2178                 card->nbchan--;
2179         }
2180         kfree(card->bchans);
2181         card->bchans = NULL;
2182
2183         if (debugmode)
2184                 printk(KERN_DEBUG "capidrv-%d: id=%d isdn unload\n",
2185                                         card->contrnr, card->myid);
2186
2187         cmd.command = ISDN_STAT_UNLOAD;
2188         cmd.driver = card->myid;
2189         card->interface.statcallb(&cmd);
2190
2191         if (debugmode)
2192                 printk(KERN_DEBUG "capidrv-%d: id=%d remove contr from list\n",
2193                                         card->contrnr, card->myid);
2194
2195         spin_lock_irqsave(&global_lock, flags);
2196         for (pp = &global.contr_list; *pp; pp = &(*pp)->next) {
2197                 if (*pp == card) {
2198                         *pp = (*pp)->next;
2199                         card->next = NULL;
2200                         global.ncontr--;
2201                         break;
2202                 }
2203         }
2204         spin_unlock_irqrestore(&global_lock, flags);
2205
2206         module_put(card->owner);
2207         printk(KERN_INFO "%s: now down.\n", card->name);
2208         kfree(card);
2209         return 0;
2210 }
2211
2212
2213 static void lower_callback(unsigned int cmd, u32 contr, void *data)
2214 {
2215
2216         switch (cmd) {
2217         case KCI_CONTRUP:
2218                 printk(KERN_INFO "capidrv: controller %hu up\n", contr);
2219                 (void) capidrv_addcontr(contr, (capi_profile *) data);
2220                 break;
2221         case KCI_CONTRDOWN:
2222                 printk(KERN_INFO "capidrv: controller %hu down\n", contr);
2223                 (void) capidrv_delcontr(contr);
2224                 break;
2225         }
2226 }
2227
2228 /*
2229  * /proc/capi/capidrv:
2230  * nrecvctlpkt nrecvdatapkt nsendctlpkt nsenddatapkt
2231  */
2232 static int proc_capidrv_read_proc(char *page, char **start, off_t off,
2233                                        int count, int *eof, void *data)
2234 {
2235         int len = 0;
2236
2237         len += sprintf(page+len, "%lu %lu %lu %lu\n",
2238                         global.ap.nrecvctlpkt,
2239                         global.ap.nrecvdatapkt,
2240                         global.ap.nsentctlpkt,
2241                         global.ap.nsentdatapkt);
2242         if (off+count >= len)
2243            *eof = 1;
2244         if (len < off)
2245            return 0;
2246         *start = page + off;
2247         return ((count < len-off) ? count : len-off);
2248 }
2249
2250 static struct procfsentries {
2251   char *name;
2252   mode_t mode;
2253   int (*read_proc)(char *page, char **start, off_t off,
2254                                        int count, int *eof, void *data);
2255   struct proc_dir_entry *procent;
2256 } procfsentries[] = {
2257    /* { "capi",           S_IFDIR, 0 }, */
2258    { "capi/capidrv",      0      , proc_capidrv_read_proc },
2259 };
2260
2261 static void __init proc_init(void)
2262 {
2263     int nelem = ARRAY_SIZE(procfsentries);
2264     int i;
2265
2266     for (i=0; i < nelem; i++) {
2267         struct procfsentries *p = procfsentries + i;
2268         p->procent = create_proc_entry(p->name, p->mode, NULL);
2269         if (p->procent) p->procent->read_proc = p->read_proc;
2270     }
2271 }
2272
2273 static void __exit proc_exit(void)
2274 {
2275     int nelem = ARRAY_SIZE(procfsentries);
2276     int i;
2277
2278     for (i=nelem-1; i >= 0; i--) {
2279         struct procfsentries *p = procfsentries + i;
2280         if (p->procent) {
2281            remove_proc_entry(p->name, NULL);
2282            p->procent = NULL;
2283         }
2284     }
2285 }
2286
2287 static int __init capidrv_init(void)
2288 {
2289         capi_profile profile;
2290         char rev[32];
2291         char *p;
2292         u32 ncontr, contr;
2293         u16 errcode;
2294
2295         if ((p = strchr(revision, ':')) != NULL && p[1]) {
2296                 strncpy(rev, p + 2, sizeof(rev));
2297                 rev[sizeof(rev)-1] = 0;
2298                 if ((p = strchr(rev, '$')) != NULL && p > rev)
2299                    *(p-1) = 0;
2300         } else
2301                 strcpy(rev, "1.0");
2302
2303         global.ap.rparam.level3cnt = -2;  /* number of bchannels twice */
2304         global.ap.rparam.datablkcnt = 16;
2305         global.ap.rparam.datablklen = 2048;
2306
2307         global.ap.recv_message = capidrv_recv_message;
2308         errcode = capi20_register(&global.ap);
2309         if (errcode) {
2310                 return -EIO;
2311         }
2312
2313         capi20_set_callback(&global.ap, lower_callback);
2314
2315         errcode = capi20_get_profile(0, &profile);
2316         if (errcode != CAPI_NOERROR) {
2317                 capi20_release(&global.ap);
2318                 return -EIO;
2319         }
2320
2321         ncontr = profile.ncontroller;
2322         for (contr = 1; contr <= ncontr; contr++) {
2323                 errcode = capi20_get_profile(contr, &profile);
2324                 if (errcode != CAPI_NOERROR)
2325                         continue;
2326                 (void) capidrv_addcontr(contr, &profile);
2327         }
2328         proc_init();
2329
2330         printk(KERN_NOTICE "capidrv: Rev %s: loaded\n", rev);
2331         return 0;
2332 }
2333
2334 static void __exit capidrv_exit(void)
2335 {
2336         char rev[32];
2337         char *p;
2338
2339         if ((p = strchr(revision, ':')) != NULL) {
2340                 strncpy(rev, p + 1, sizeof(rev));
2341                 rev[sizeof(rev)-1] = 0;
2342                 if ((p = strchr(rev, '$')) != NULL)
2343                         *p = 0;
2344         } else {
2345                 strcpy(rev, " ??? ");
2346         }
2347
2348         capi20_release(&global.ap);
2349
2350         proc_exit();
2351
2352         printk(KERN_NOTICE "capidrv: Rev%s: unloaded\n", rev);
2353 }
2354
2355 module_init(capidrv_init);
2356 module_exit(capidrv_exit);