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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
[linux-2.6.git] / drivers / isdn / capi / capidrv.c
blobcc9f1927a322ec9d8aa1a5a05cad351711d9f861
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/seq_file.h>
28 #include <linux/capi.h>
29 #include <linux/kernelcapi.h>
30 #include <linux/ctype.h>
31 #include <linux/init.h>
32 #include <linux/moduleparam.h>
33
34 #include <linux/isdn/capiutil.h>
35 #include <linux/isdn/capicmd.h>
36 #include "capidrv.h"
37
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 = kmalloc(sizeof(struct ncci_datahandle_queue), GFP_ATOMIC);
473 if (!n) {
474 printk(KERN_ERR "capidrv: kmalloc ncci_datahandle failed\n");
475 return -1;
476 }
477 n->next = NULL;
478 n->datahandle = datahandle;
479 n->len = len;
480 for (pp = &nccip->ackqueue; *pp; pp = &(*pp)->next);
481 *pp = n;
482 return 0;
483 }
484
485 static int capidrv_del_ack(struct capidrv_ncci *nccip, u16 datahandle)
486 {
487 struct ncci_datahandle_queue **pp, *p;
488 int len;
489
490 for (pp = &nccip->ackqueue; *pp; pp = &(*pp)->next) {
491 if ((*pp)->datahandle == datahandle) {
492 p = *pp;
493 len = p->len;
494 *pp = (*pp)->next;
495 kfree(p);
496 return len;
497 }
498 }
499 return -1;
500 }
501
502 /* -------- convert and send capi message ---------------------------- */
503
504 static void send_message(capidrv_contr *card, _cmsg *cmsg)
505 {
506 struct sk_buff *skb;
507 size_t len;
508
509 capi_cmsg2message(cmsg, cmsg->buf);
510 len = CAPIMSG_LEN(cmsg->buf);
511 skb = alloc_skb(len, GFP_ATOMIC);
512 if (!skb) {
513 printk(KERN_ERR "capidrv::send_message: can't allocate mem\n");
514 return;
515 }
516 memcpy(skb_put(skb, len), cmsg->buf, len);
517 if (capi20_put_message(&global.ap, skb) != CAPI_NOERROR)
518 kfree_skb(skb);
519 }
520
521 /* -------- state machine -------------------------------------------- */
522
523 struct listenstatechange {
524 int actstate;
525 int nextstate;
526 int event;
527 };
528
529 static struct listenstatechange listentable[] =
530 {
531 {ST_LISTEN_NONE, ST_LISTEN_WAIT_CONF, EV_LISTEN_REQ},
532 {ST_LISTEN_ACTIVE, ST_LISTEN_ACTIVE_WAIT_CONF, EV_LISTEN_REQ},
533 {ST_LISTEN_WAIT_CONF, ST_LISTEN_NONE, EV_LISTEN_CONF_ERROR},
534 {ST_LISTEN_ACTIVE_WAIT_CONF, ST_LISTEN_ACTIVE, EV_LISTEN_CONF_ERROR},
535 {ST_LISTEN_WAIT_CONF, ST_LISTEN_NONE, EV_LISTEN_CONF_EMPTY},
536 {ST_LISTEN_ACTIVE_WAIT_CONF, ST_LISTEN_NONE, EV_LISTEN_CONF_EMPTY},
537 {ST_LISTEN_WAIT_CONF, ST_LISTEN_ACTIVE, EV_LISTEN_CONF_OK},
538 {ST_LISTEN_ACTIVE_WAIT_CONF, ST_LISTEN_ACTIVE, EV_LISTEN_CONF_OK},
539 {},
540 };
541
542 static void listen_change_state(capidrv_contr *card, int event)
543 {
544 struct listenstatechange *p = listentable;
545 while (p->event) {
546 if (card->state == p->actstate && p->event == event) {
547 if (debugmode)
548 printk(KERN_DEBUG "capidrv-%d: listen_change_state %d -> %d\n",
549 card->contrnr, card->state, p->nextstate);
550 card->state = p->nextstate;
551 return;
552 }
553 p++;
554 }
555 printk(KERN_ERR "capidrv-%d: listen_change_state state=%d event=%d ????\n",
556 card->contrnr, card->state, event);
557
558 }
559
560 /* ------------------------------------------------------------------ */
561
562 static void p0(capidrv_contr *card, capidrv_plci *plci)
563 {
564 isdn_ctrl cmd;
565
566 card->bchans[plci->chan].contr = NULL;
567 cmd.command = ISDN_STAT_DHUP;
568 cmd.driver = card->myid;
569 cmd.arg = plci->chan;
570 card->interface.statcallb(&cmd);
571 free_plci(card, plci);
572 }
573
574 /* ------------------------------------------------------------------ */
575
576 struct plcistatechange {
577 int actstate;
578 int nextstate;
579 int event;
580 void (*changefunc)(capidrv_contr *card, capidrv_plci *plci);
581 };
582
583 static struct plcistatechange plcitable[] =
584 {
585 /* P-0 */
586 {ST_PLCI_NONE, ST_PLCI_OUTGOING, EV_PLCI_CONNECT_REQ, NULL},
587 {ST_PLCI_NONE, ST_PLCI_ALLOCATED, EV_PLCI_FACILITY_IND_UP, NULL},
588 {ST_PLCI_NONE, ST_PLCI_INCOMING, EV_PLCI_CONNECT_IND, NULL},
589 {ST_PLCI_NONE, ST_PLCI_RESUMEING, EV_PLCI_RESUME_REQ, NULL},
590 /* P-0.1 */
591 {ST_PLCI_OUTGOING, ST_PLCI_NONE, EV_PLCI_CONNECT_CONF_ERROR, p0},
592 {ST_PLCI_OUTGOING, ST_PLCI_ALLOCATED, EV_PLCI_CONNECT_CONF_OK, NULL},
593 /* P-1 */
594 {ST_PLCI_ALLOCATED, ST_PLCI_ACTIVE, EV_PLCI_CONNECT_ACTIVE_IND, NULL},
595 {ST_PLCI_ALLOCATED, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
596 {ST_PLCI_ALLOCATED, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
597 {ST_PLCI_ALLOCATED, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
598 /* P-ACT */
599 {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
600 {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
601 {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
602 {ST_PLCI_ACTIVE, ST_PLCI_HELD, EV_PLCI_HOLD_IND, NULL},
603 {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTING, EV_PLCI_SUSPEND_IND, NULL},
604 /* P-2 */
605 {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_CONNECT_REJECT, NULL},
606 {ST_PLCI_INCOMING, ST_PLCI_FACILITY_IND, EV_PLCI_FACILITY_IND_UP, NULL},
607 {ST_PLCI_INCOMING, ST_PLCI_ACCEPTING, EV_PLCI_CONNECT_RESP, NULL},
608 {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
609 {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
610 {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
611 {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_CD_IND, NULL},
612 /* P-3 */
613 {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTING, EV_PLCI_CONNECT_REJECT, NULL},
614 {ST_PLCI_FACILITY_IND, ST_PLCI_ACCEPTING, EV_PLCI_CONNECT_ACTIVE_IND, NULL},
615 {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
616 {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
617 {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
618 /* P-4 */
619 {ST_PLCI_ACCEPTING, ST_PLCI_ACTIVE, EV_PLCI_CONNECT_ACTIVE_IND, NULL},
620 {ST_PLCI_ACCEPTING, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
621 {ST_PLCI_ACCEPTING, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
622 {ST_PLCI_ACCEPTING, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
623 /* P-5 */
624 {ST_PLCI_DISCONNECTING, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
625 /* P-6 */
626 {ST_PLCI_DISCONNECTED, ST_PLCI_NONE, EV_PLCI_DISCONNECT_RESP, p0},
627 /* P-0.Res */
628 {ST_PLCI_RESUMEING, ST_PLCI_NONE, EV_PLCI_RESUME_CONF_ERROR, p0},
629 {ST_PLCI_RESUMEING, ST_PLCI_RESUME, EV_PLCI_RESUME_CONF_OK, NULL},
630 /* P-RES */
631 {ST_PLCI_RESUME, ST_PLCI_ACTIVE, EV_PLCI_RESUME_IND, NULL},
632 /* P-HELD */
633 {ST_PLCI_HELD, ST_PLCI_ACTIVE, EV_PLCI_RETRIEVE_IND, NULL},
634 {},
635 };
636
637 static void plci_change_state(capidrv_contr *card, capidrv_plci *plci, int event)
638 {
639 struct plcistatechange *p = plcitable;
640 while (p->event) {
641 if (plci->state == p->actstate && p->event == event) {
642 if (debugmode)
643 printk(KERN_DEBUG "capidrv-%d: plci_change_state:0x%x %d -> %d\n",
644 card->contrnr, plci->plci, plci->state, p->nextstate);
645 plci->state = p->nextstate;
646 if (p->changefunc)
647 p->changefunc(card, plci);
648 return;
649 }
650 p++;
651 }
652 printk(KERN_ERR "capidrv-%d: plci_change_state:0x%x state=%d event=%d ????\n",
653 card->contrnr, plci->plci, plci->state, event);
654 }
655
656 /* ------------------------------------------------------------------ */
657
658 static _cmsg cmsg;
659
660 static void n0(capidrv_contr *card, capidrv_ncci *ncci)
661 {
662 isdn_ctrl cmd;
663
664 capi_fill_DISCONNECT_REQ(&cmsg,
665 global.ap.applid,
666 card->msgid++,
667 ncci->plcip->plci,
668 NULL, /* BChannelinformation */
669 NULL, /* Keypadfacility */
670 NULL, /* Useruserdata */ /* $$$$ */
671 NULL /* Facilitydataarray */
672 );
673 plci_change_state(card, ncci->plcip, EV_PLCI_DISCONNECT_REQ);
674 send_message(card, &cmsg);
675
676 cmd.command = ISDN_STAT_BHUP;
677 cmd.driver = card->myid;
678 cmd.arg = ncci->chan;
679 card->interface.statcallb(&cmd);
680 free_ncci(card, ncci);
681 }
682
683 /* ------------------------------------------------------------------ */
684
685 struct nccistatechange {
686 int actstate;
687 int nextstate;
688 int event;
689 void (*changefunc)(capidrv_contr *card, capidrv_ncci *ncci);
690 };
691
692 static struct nccistatechange nccitable[] =
693 {
694 /* N-0 */
695 {ST_NCCI_NONE, ST_NCCI_OUTGOING, EV_NCCI_CONNECT_B3_REQ, NULL},
696 {ST_NCCI_NONE, ST_NCCI_INCOMING, EV_NCCI_CONNECT_B3_IND, NULL},
697 /* N-0.1 */
698 {ST_NCCI_OUTGOING, ST_NCCI_ALLOCATED, EV_NCCI_CONNECT_B3_CONF_OK, NULL},
699 {ST_NCCI_OUTGOING, ST_NCCI_NONE, EV_NCCI_CONNECT_B3_CONF_ERROR, n0},
700 /* N-1 */
701 {ST_NCCI_INCOMING, ST_NCCI_DISCONNECTING, EV_NCCI_CONNECT_B3_REJECT, NULL},
702 {ST_NCCI_INCOMING, ST_NCCI_ALLOCATED, EV_NCCI_CONNECT_B3_RESP, NULL},
703 {ST_NCCI_INCOMING, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
704 {ST_NCCI_INCOMING, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL},
705 /* N-2 */
706 {ST_NCCI_ALLOCATED, ST_NCCI_ACTIVE, EV_NCCI_CONNECT_B3_ACTIVE_IND, NULL},
707 {ST_NCCI_ALLOCATED, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
708 {ST_NCCI_ALLOCATED, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL},
709 /* N-ACT */
710 {ST_NCCI_ACTIVE, ST_NCCI_ACTIVE, EV_NCCI_RESET_B3_IND, NULL},
711 {ST_NCCI_ACTIVE, ST_NCCI_RESETING, EV_NCCI_RESET_B3_REQ, NULL},
712 {ST_NCCI_ACTIVE, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
713 {ST_NCCI_ACTIVE, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL},
714 /* N-3 */
715 {ST_NCCI_RESETING, ST_NCCI_ACTIVE, EV_NCCI_RESET_B3_IND, NULL},
716 {ST_NCCI_RESETING, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
717 {ST_NCCI_RESETING, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL},
718 /* N-4 */
719 {ST_NCCI_DISCONNECTING, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
720 {ST_NCCI_DISCONNECTING, ST_NCCI_PREVIOUS, EV_NCCI_DISCONNECT_B3_CONF_ERROR, NULL},
721 /* N-5 */
722 {ST_NCCI_DISCONNECTED, ST_NCCI_NONE, EV_NCCI_DISCONNECT_B3_RESP, n0},
723 {},
724 };
725
726 static void ncci_change_state(capidrv_contr *card, capidrv_ncci *ncci, int event)
727 {
728 struct nccistatechange *p = nccitable;
729 while (p->event) {
730 if (ncci->state == p->actstate && p->event == event) {
731 if (debugmode)
732 printk(KERN_DEBUG "capidrv-%d: ncci_change_state:0x%x %d -> %d\n",
733 card->contrnr, ncci->ncci, ncci->state, p->nextstate);
734 if (p->nextstate == ST_NCCI_PREVIOUS) {
735 ncci->state = ncci->oldstate;
736 ncci->oldstate = p->actstate;
737 } else {
738 ncci->oldstate = p->actstate;
739 ncci->state = p->nextstate;
740 }
741 if (p->changefunc)
742 p->changefunc(card, ncci);
743 return;
744 }
745 p++;
746 }
747 printk(KERN_ERR "capidrv-%d: ncci_change_state:0x%x state=%d event=%d ????\n",
748 card->contrnr, ncci->ncci, ncci->state, event);
749 }
750
751 /* ------------------------------------------------------------------- */
752
753 static inline int new_bchan(capidrv_contr *card)
754 {
755 int i;
756 for (i = 0; i < card->nbchan; i++) {
757 if (card->bchans[i].plcip == NULL) {
758 card->bchans[i].disconnecting = 0;
759 return i;
760 }
761 }
762 return -1;
763 }
764
765 /* ------------------------------------------------------------------- */
766
767 static void handle_controller(_cmsg *cmsg)
768 {
769 capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f);
770
771 if (!card) {
772 printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n",
773 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
774 cmsg->adr.adrController & 0x7f);
775 return;
776 }
777 switch (CAPICMD(cmsg->Command, cmsg->Subcommand)) {
778
779 case CAPI_LISTEN_CONF: /* Controller */
780 if (debugmode)
781 printk(KERN_DEBUG "capidrv-%d: listenconf Info=0x%4x (%s) cipmask=0x%x\n",
782 card->contrnr, cmsg->Info, capi_info2str(cmsg->Info), card->cipmask);
783 if (cmsg->Info) {
784 listen_change_state(card, EV_LISTEN_CONF_ERROR);
785 } else if (card->cipmask == 0) {
786 listen_change_state(card, EV_LISTEN_CONF_EMPTY);
787 } else {
788 listen_change_state(card, EV_LISTEN_CONF_OK);
789 }
790 break;
791
792 case CAPI_MANUFACTURER_IND: /* Controller */
793 if (cmsg->ManuID == 0x214D5641
794 && cmsg->Class == 0
795 && cmsg->Function == 1) {
796 u8 *data = cmsg->ManuData + 3;
797 u16 len = cmsg->ManuData[0];
798 u16 layer;
799 int direction;
800 if (len == 255) {
801 len = (cmsg->ManuData[1] | (cmsg->ManuData[2] << 8));
802 data += 2;
803 }
804 len -= 2;
805 layer = ((*(data - 1)) << 8) | *(data - 2);
806 if (layer & 0x300)
807 direction = (layer & 0x200) ? 0 : 1;
808 else direction = (layer & 0x800) ? 0 : 1;
809 if (layer & 0x0C00) {
810 if ((layer & 0xff) == 0x80) {
811 handle_dtrace_data(card, direction, 1, data, len);
812 break;
813 }
814 } else if ((layer & 0xff) < 0x80) {
815 handle_dtrace_data(card, direction, 0, data, len);
816 break;
817 }
818 printk(KERN_INFO "capidrv-%d: %s from controller 0x%x layer 0x%x, ignored\n",
819 card->contrnr,
820 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
821 cmsg->adr.adrController, layer);
822 break;
823 }
824 goto ignored;
825 case CAPI_MANUFACTURER_CONF: /* Controller */
826 if (cmsg->ManuID == 0x214D5641) {
827 char *s = NULL;
828 switch (cmsg->Class) {
829 case 0: break;
830 case 1: s = "unknown class"; break;
831 case 2: s = "unknown function"; break;
832 default: s = "unknown error"; break;
833 }
834 if (s)
835 printk(KERN_INFO "capidrv-%d: %s from controller 0x%x function %d: %s\n",
836 card->contrnr,
837 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
838 cmsg->adr.adrController,
839 cmsg->Function, s);
840 break;
841 }
842 goto ignored;
843 case CAPI_FACILITY_IND: /* Controller/plci/ncci */
844 goto ignored;
845 case CAPI_FACILITY_CONF: /* Controller/plci/ncci */
846 goto ignored;
847 case CAPI_INFO_IND: /* Controller/plci */
848 goto ignored;
849 case CAPI_INFO_CONF: /* Controller/plci */
850 goto ignored;
851
852 default:
853 printk(KERN_ERR "capidrv-%d: got %s from controller 0x%x ???",
854 card->contrnr,
855 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
856 cmsg->adr.adrController);
857 }
858 return;
859
860 ignored:
861 printk(KERN_INFO "capidrv-%d: %s from controller 0x%x ignored\n",
862 card->contrnr,
863 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
864 cmsg->adr.adrController);
865 }
866
867 static void handle_incoming_call(capidrv_contr *card, _cmsg *cmsg)
868 {
869 capidrv_plci *plcip;
870 capidrv_bchan *bchan;
871 isdn_ctrl cmd;
872 int chan;
873
874 if ((chan = new_bchan(card)) == -1) {
875 printk(KERN_ERR "capidrv-%d: incoming call on not existing bchan ?\n", card->contrnr);
876 return;
877 }
878 bchan = &card->bchans[chan];
879 if ((plcip = new_plci(card, chan)) == NULL) {
880 printk(KERN_ERR "capidrv-%d: incoming call: no memory, sorry.\n", card->contrnr);
881 return;
882 }
883 bchan->incoming = 1;
884 plcip->plci = cmsg->adr.adrPLCI;
885 plci_change_state(card, plcip, EV_PLCI_CONNECT_IND);
886
887 cmd.command = ISDN_STAT_ICALL;
888 cmd.driver = card->myid;
889 cmd.arg = chan;
890 memset(&cmd.parm.setup, 0, sizeof(cmd.parm.setup));
891 strncpy(cmd.parm.setup.phone,
892 cmsg->CallingPartyNumber + 3,
893 cmsg->CallingPartyNumber[0] - 2);
894 strncpy(cmd.parm.setup.eazmsn,
895 cmsg->CalledPartyNumber + 2,
896 cmsg->CalledPartyNumber[0] - 1);
897 cmd.parm.setup.si1 = cip2si1(cmsg->CIPValue);
898 cmd.parm.setup.si2 = cip2si2(cmsg->CIPValue);
899 cmd.parm.setup.plan = cmsg->CallingPartyNumber[1];
900 cmd.parm.setup.screen = cmsg->CallingPartyNumber[2];
901
902 printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s\n",
903 card->contrnr,
904 cmd.parm.setup.phone,
905 cmd.parm.setup.si1,
906 cmd.parm.setup.si2,
907 cmd.parm.setup.eazmsn);
908
909 if (cmd.parm.setup.si1 == 1 && cmd.parm.setup.si2 != 0) {
910 printk(KERN_INFO "capidrv-%d: patching si2=%d to 0 for VBOX\n",
911 card->contrnr,
912 cmd.parm.setup.si2);
913 cmd.parm.setup.si2 = 0;
914 }
915
916 switch (card->interface.statcallb(&cmd)) {
917 case 0:
918 case 3:
919 /* No device matching this call.
920 * and isdn_common.c has send a HANGUP command
921 * which is ignored in state ST_PLCI_INCOMING,
922 * so we send RESP to ignore the call
923 */
924 capi_cmsg_answer(cmsg);
925 cmsg->Reject = 1; /* ignore */
926 plci_change_state(card, plcip, EV_PLCI_CONNECT_REJECT);
927 send_message(card, cmsg);
928 printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s ignored\n",
929 card->contrnr,
930 cmd.parm.setup.phone,
931 cmd.parm.setup.si1,
932 cmd.parm.setup.si2,
933 cmd.parm.setup.eazmsn);
934 break;
935 case 1:
936 /* At least one device matching this call (RING on ttyI)
937 * HL-driver may send ALERTING on the D-channel in this
938 * case.
939 * really means: RING on ttyI or a net interface
940 * accepted this call already.
941 *
942 * If the call was accepted, state has already changed,
943 * and CONNECT_RESP already sent.
944 */
945 if (plcip->state == ST_PLCI_INCOMING) {
946 printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s tty alerting\n",
947 card->contrnr,
948 cmd.parm.setup.phone,
949 cmd.parm.setup.si1,
950 cmd.parm.setup.si2,
951 cmd.parm.setup.eazmsn);
952 capi_fill_ALERT_REQ(cmsg,
953 global.ap.applid,
954 card->msgid++,
955 plcip->plci, /* adr */
956 NULL,/* BChannelinformation */
957 NULL,/* Keypadfacility */
958 NULL,/* Useruserdata */
959 NULL /* Facilitydataarray */
960 );
961 plcip->msgid = cmsg->Messagenumber;
962 send_message(card, cmsg);
963 } else {
964 printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s on netdev\n",
965 card->contrnr,
966 cmd.parm.setup.phone,
967 cmd.parm.setup.si1,
968 cmd.parm.setup.si2,
969 cmd.parm.setup.eazmsn);
970 }
971 break;
972
973 case 2: /* Call will be rejected. */
974 capi_cmsg_answer(cmsg);
975 cmsg->Reject = 2; /* reject call, normal call clearing */
976 plci_change_state(card, plcip, EV_PLCI_CONNECT_REJECT);
977 send_message(card, cmsg);
978 break;
979
980 default:
981 /* An error happened. (Invalid parameters for example.) */
982 capi_cmsg_answer(cmsg);
983 cmsg->Reject = 8; /* reject call,
984 destination out of order */
985 plci_change_state(card, plcip, EV_PLCI_CONNECT_REJECT);
986 send_message(card, cmsg);
987 break;
988 }
989 return;
990 }
991
992 static void handle_plci(_cmsg *cmsg)
993 {
994 capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f);
995 capidrv_plci *plcip;
996 isdn_ctrl cmd;
997 _cdebbuf *cdb;
998
999 if (!card) {
1000 printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n",
1001 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1002 cmsg->adr.adrController & 0x7f);
1003 return;
1004 }
1005 switch (CAPICMD(cmsg->Command, cmsg->Subcommand)) {
1006
1007 case CAPI_DISCONNECT_IND: /* plci */
1008 if (cmsg->Reason) {
1009 printk(KERN_INFO "capidrv-%d: %s reason 0x%x (%s) for plci 0x%x\n",
1010 card->contrnr,
1011 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1012 cmsg->Reason, capi_info2str(cmsg->Reason), cmsg->adr.adrPLCI);
1013 }
1014 if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI))) {
1015 capi_cmsg_answer(cmsg);
1016 send_message(card, cmsg);
1017 goto notfound;
1018 }
1019 card->bchans[plcip->chan].disconnecting = 1;
1020 plci_change_state(card, plcip, EV_PLCI_DISCONNECT_IND);
1021 capi_cmsg_answer(cmsg);
1022 plci_change_state(card, plcip, EV_PLCI_DISCONNECT_RESP);
1023 send_message(card, cmsg);
1024 break;
1025
1026 case CAPI_DISCONNECT_CONF: /* plci */
1027 if (cmsg->Info) {
1028 printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for plci 0x%x\n",
1029 card->contrnr,
1030 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1031 cmsg->Info, capi_info2str(cmsg->Info),
1032 cmsg->adr.adrPLCI);
1033 }
1034 if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI)))
1035 goto notfound;
1036
1037 card->bchans[plcip->chan].disconnecting = 1;
1038 break;
1039
1040 case CAPI_ALERT_CONF: /* plci */
1041 if (cmsg->Info) {
1042 printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for plci 0x%x\n",
1043 card->contrnr,
1044 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1045 cmsg->Info, capi_info2str(cmsg->Info),
1046 cmsg->adr.adrPLCI);
1047 }
1048 break;
1049
1050 case CAPI_CONNECT_IND: /* plci */
1051 handle_incoming_call(card, cmsg);
1052 break;
1053
1054 case CAPI_CONNECT_CONF: /* plci */
1055 if (cmsg->Info) {
1056 printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for plci 0x%x\n",
1057 card->contrnr,
1058 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1059 cmsg->Info, capi_info2str(cmsg->Info),
1060 cmsg->adr.adrPLCI);
1061 }
1062 if (!(plcip = find_plci_by_msgid(card, cmsg->Messagenumber)))
1063 goto notfound;
1064
1065 plcip->plci = cmsg->adr.adrPLCI;
1066 if (cmsg->Info) {
1067 plci_change_state(card, plcip, EV_PLCI_CONNECT_CONF_ERROR);
1068 } else {
1069 plci_change_state(card, plcip, EV_PLCI_CONNECT_CONF_OK);
1070 }
1071 break;
1072
1073 case CAPI_CONNECT_ACTIVE_IND: /* plci */
1074
1075 if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI)))
1076 goto notfound;
1077
1078 if (card->bchans[plcip->chan].incoming) {
1079 capi_cmsg_answer(cmsg);
1080 plci_change_state(card, plcip, EV_PLCI_CONNECT_ACTIVE_IND);
1081 send_message(card, cmsg);
1082 } else {
1083 capidrv_ncci *nccip;
1084 capi_cmsg_answer(cmsg);
1085 send_message(card, cmsg);
1086
1087 nccip = new_ncci(card, plcip, cmsg->adr.adrPLCI);
1088
1089 if (!nccip) {
1090 printk(KERN_ERR "capidrv-%d: no mem for ncci, sorry\n", card->contrnr);
1091 break; /* $$$$ */
1092 }
1093 capi_fill_CONNECT_B3_REQ(cmsg,
1094 global.ap.applid,
1095 card->msgid++,
1096 plcip->plci, /* adr */
1097 NULL /* NCPI */
1098 );
1099 nccip->msgid = cmsg->Messagenumber;
1100 plci_change_state(card, plcip,
1101 EV_PLCI_CONNECT_ACTIVE_IND);
1102 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_REQ);
1103 send_message(card, cmsg);
1104 cmd.command = ISDN_STAT_DCONN;
1105 cmd.driver = card->myid;
1106 cmd.arg = plcip->chan;
1107 card->interface.statcallb(&cmd);
1108 }
1109 break;
1110
1111 case CAPI_INFO_IND: /* Controller/plci */
1112
1113 if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI)))
1114 goto notfound;
1115
1116 if (cmsg->InfoNumber == 0x4000) {
1117 if (cmsg->InfoElement[0] == 4) {
1118 cmd.command = ISDN_STAT_CINF;
1119 cmd.driver = card->myid;
1120 cmd.arg = plcip->chan;
1121 sprintf(cmd.parm.num, "%lu",
1122 (unsigned long)
1123 ((u32) cmsg->InfoElement[1]
1124 | ((u32) (cmsg->InfoElement[2]) << 8)
1125 | ((u32) (cmsg->InfoElement[3]) << 16)
1126 | ((u32) (cmsg->InfoElement[4]) << 24)));
1127 card->interface.statcallb(&cmd);
1128 break;
1129 }
1130 }
1131 cdb = capi_cmsg2str(cmsg);
1132 if (cdb) {
1133 printk(KERN_WARNING "capidrv-%d: %s\n",
1134 card->contrnr, cdb->buf);
1135 cdebbuf_free(cdb);
1136 } else
1137 printk(KERN_WARNING "capidrv-%d: CAPI_INFO_IND InfoNumber %x not handled\n",
1138 card->contrnr, cmsg->InfoNumber);
1139
1140 break;
1141
1142 case CAPI_CONNECT_ACTIVE_CONF: /* plci */
1143 goto ignored;
1144 case CAPI_SELECT_B_PROTOCOL_CONF: /* plci */
1145 goto ignored;
1146 case CAPI_FACILITY_IND: /* Controller/plci/ncci */
1147 goto ignored;
1148 case CAPI_FACILITY_CONF: /* Controller/plci/ncci */
1149 goto ignored;
1150
1151 case CAPI_INFO_CONF: /* Controller/plci */
1152 goto ignored;
1153
1154 default:
1155 printk(KERN_ERR "capidrv-%d: got %s for plci 0x%x ???",
1156 card->contrnr,
1157 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1158 cmsg->adr.adrPLCI);
1159 }
1160 return;
1161 ignored:
1162 printk(KERN_INFO "capidrv-%d: %s for plci 0x%x ignored\n",
1163 card->contrnr,
1164 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1165 cmsg->adr.adrPLCI);
1166 return;
1167 notfound:
1168 printk(KERN_ERR "capidrv-%d: %s: plci 0x%x not found\n",
1169 card->contrnr,
1170 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1171 cmsg->adr.adrPLCI);
1172 return;
1173 }
1174
1175 static void handle_ncci(_cmsg *cmsg)
1176 {
1177 capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f);
1178 capidrv_plci *plcip;
1179 capidrv_ncci *nccip;
1180 isdn_ctrl cmd;
1181 int len;
1182
1183 if (!card) {
1184 printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n",
1185 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1186 cmsg->adr.adrController & 0x7f);
1187 return;
1188 }
1189 switch (CAPICMD(cmsg->Command, cmsg->Subcommand)) {
1190
1191 case CAPI_CONNECT_B3_ACTIVE_IND: /* ncci */
1192 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
1193 goto notfound;
1194
1195 capi_cmsg_answer(cmsg);
1196 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_ACTIVE_IND);
1197 send_message(card, cmsg);
1198
1199 cmd.command = ISDN_STAT_BCONN;
1200 cmd.driver = card->myid;
1201 cmd.arg = nccip->chan;
1202 card->interface.statcallb(&cmd);
1203
1204 printk(KERN_INFO "capidrv-%d: chan %d up with ncci 0x%x\n",
1205 card->contrnr, nccip->chan, nccip->ncci);
1206 break;
1207
1208 case CAPI_CONNECT_B3_ACTIVE_CONF: /* ncci */
1209 goto ignored;
1210
1211 case CAPI_CONNECT_B3_IND: /* ncci */
1212
1213 plcip = find_plci_by_ncci(card, cmsg->adr.adrNCCI);
1214 if (plcip) {
1215 nccip = new_ncci(card, plcip, cmsg->adr.adrNCCI);
1216 if (nccip) {
1217 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_IND);
1218 capi_fill_CONNECT_B3_RESP(cmsg,
1219 global.ap.applid,
1220 card->msgid++,
1221 nccip->ncci, /* adr */
1222 0, /* Reject */
1223 NULL /* NCPI */
1224 );
1225 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_RESP);
1226 send_message(card, cmsg);
1227 break;
1228 }
1229 printk(KERN_ERR "capidrv-%d: no mem for ncci, sorry\n", card->contrnr);
1230 } else {
1231 printk(KERN_ERR "capidrv-%d: %s: plci for ncci 0x%x not found\n",
1232 card->contrnr,
1233 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1234 cmsg->adr.adrNCCI);
1235 }
1236 capi_fill_CONNECT_B3_RESP(cmsg,
1237 global.ap.applid,
1238 card->msgid++,
1239 cmsg->adr.adrNCCI,
1240 2, /* Reject */
1241 NULL /* NCPI */
1242 );
1243 send_message(card, cmsg);
1244 break;
1245
1246 case CAPI_CONNECT_B3_CONF: /* ncci */
1247
1248 if (!(nccip = find_ncci_by_msgid(card,
1249 cmsg->adr.adrNCCI,
1250 cmsg->Messagenumber)))
1251 goto notfound;
1252
1253 nccip->ncci = cmsg->adr.adrNCCI;
1254 if (cmsg->Info) {
1255 printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for ncci 0x%x\n",
1256 card->contrnr,
1257 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1258 cmsg->Info, capi_info2str(cmsg->Info),
1259 cmsg->adr.adrNCCI);
1260 }
1261
1262 if (cmsg->Info)
1263 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_CONF_ERROR);
1264 else
1265 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_CONF_OK);
1266 break;
1267
1268 case CAPI_CONNECT_B3_T90_ACTIVE_IND: /* ncci */
1269 capi_cmsg_answer(cmsg);
1270 send_message(card, cmsg);
1271 break;
1272
1273 case CAPI_DATA_B3_IND: /* ncci */
1274 /* handled in handle_data() */
1275 goto ignored;
1276
1277 case CAPI_DATA_B3_CONF: /* ncci */
1278 if (cmsg->Info) {
1279 printk(KERN_WARNING "CAPI_DATA_B3_CONF: Info %x - %s\n",
1280 cmsg->Info, capi_info2str(cmsg->Info));
1281 }
1282 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
1283 goto notfound;
1284
1285 len = capidrv_del_ack(nccip, cmsg->DataHandle);
1286 if (len < 0)
1287 break;
1288 cmd.command = ISDN_STAT_BSENT;
1289 cmd.driver = card->myid;
1290 cmd.arg = nccip->chan;
1291 cmd.parm.length = len;
1292 card->interface.statcallb(&cmd);
1293 break;
1294
1295 case CAPI_DISCONNECT_B3_IND: /* ncci */
1296 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
1297 goto notfound;
1298
1299 card->bchans[nccip->chan].disconnecting = 1;
1300 ncci_change_state(card, nccip, EV_NCCI_DISCONNECT_B3_IND);
1301 capi_cmsg_answer(cmsg);
1302 ncci_change_state(card, nccip, EV_NCCI_DISCONNECT_B3_RESP);
1303 send_message(card, cmsg);
1304 break;
1305
1306 case CAPI_DISCONNECT_B3_CONF: /* ncci */
1307 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
1308 goto notfound;
1309 if (cmsg->Info) {
1310 printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for ncci 0x%x\n",
1311 card->contrnr,
1312 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1313 cmsg->Info, capi_info2str(cmsg->Info),
1314 cmsg->adr.adrNCCI);
1315 ncci_change_state(card, nccip, EV_NCCI_DISCONNECT_B3_CONF_ERROR);
1316 }
1317 break;
1318
1319 case CAPI_RESET_B3_IND: /* ncci */
1320 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
1321 goto notfound;
1322 ncci_change_state(card, nccip, EV_NCCI_RESET_B3_IND);
1323 capi_cmsg_answer(cmsg);
1324 send_message(card, cmsg);
1325 break;
1326
1327 case CAPI_RESET_B3_CONF: /* ncci */
1328 goto ignored; /* $$$$ */
1329
1330 case CAPI_FACILITY_IND: /* Controller/plci/ncci */
1331 goto ignored;
1332 case CAPI_FACILITY_CONF: /* Controller/plci/ncci */
1333 goto ignored;
1334
1335 default:
1336 printk(KERN_ERR "capidrv-%d: got %s for ncci 0x%x ???",
1337 card->contrnr,
1338 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1339 cmsg->adr.adrNCCI);
1340 }
1341 return;
1342 ignored:
1343 printk(KERN_INFO "capidrv-%d: %s for ncci 0x%x ignored\n",
1344 card->contrnr,
1345 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1346 cmsg->adr.adrNCCI);
1347 return;
1348 notfound:
1349 printk(KERN_ERR "capidrv-%d: %s: ncci 0x%x not found\n",
1350 card->contrnr,
1351 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1352 cmsg->adr.adrNCCI);
1353 }
1354
1355
1356 static void handle_data(_cmsg *cmsg, struct sk_buff *skb)
1357 {
1358 capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f);
1359 capidrv_ncci *nccip;
1360
1361 if (!card) {
1362 printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n",
1363 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1364 cmsg->adr.adrController & 0x7f);
1365 kfree_skb(skb);
1366 return;
1367 }
1368 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI))) {
1369 printk(KERN_ERR "capidrv-%d: %s: ncci 0x%x not found\n",
1370 card->contrnr,
1371 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1372 cmsg->adr.adrNCCI);
1373 kfree_skb(skb);
1374 return;
1375 }
1376 (void) skb_pull(skb, CAPIMSG_LEN(skb->data));
1377 card->interface.rcvcallb_skb(card->myid, nccip->chan, skb);
1378 capi_cmsg_answer(cmsg);
1379 send_message(card, cmsg);
1380 }
1381
1382 static _cmsg s_cmsg;
1383
1384 static void capidrv_recv_message(struct capi20_appl *ap, struct sk_buff *skb)
1385 {
1386 capi_message2cmsg(&s_cmsg, skb->data);
1387 if (debugmode > 3) {
1388 _cdebbuf *cdb = capi_cmsg2str(&s_cmsg);
1389
1390 if (cdb) {
1391 printk(KERN_DEBUG "%s: applid=%d %s\n", __func__,
1392 ap->applid, cdb->buf);
1393 cdebbuf_free(cdb);
1394 } else
1395 printk(KERN_DEBUG "%s: applid=%d %s not traced\n",
1396 __func__, ap->applid,
1397 capi_cmd2str(s_cmsg.Command, s_cmsg.Subcommand));
1398 }
1399 if (s_cmsg.Command == CAPI_DATA_B3
1400 && s_cmsg.Subcommand == CAPI_IND) {
1401 handle_data(&s_cmsg, skb);
1402 return;
1403 }
1404 if ((s_cmsg.adr.adrController & 0xffffff00) == 0)
1405 handle_controller(&s_cmsg);
1406 else if ((s_cmsg.adr.adrPLCI & 0xffff0000) == 0)
1407 handle_plci(&s_cmsg);
1408 else
1409 handle_ncci(&s_cmsg);
1410 /*
1411 * data of skb used in s_cmsg,
1412 * free data when s_cmsg is not used again
1413 * thanks to Lars Heete <hel@admin.de>
1414 */
1415 kfree_skb(skb);
1416 }
1417
1418 /* ------------------------------------------------------------------- */
1419
1420 #define PUTBYTE_TO_STATUS(card, byte) \
1421 do { \
1422 *(card)->q931_write++ = (byte); \
1423 if ((card)->q931_write > (card)->q931_end) \
1424 (card)->q931_write = (card)->q931_buf; \
1425 } while (0)
1426
1427 static void handle_dtrace_data(capidrv_contr *card,
1428 int send, int level2, u8 *data, u16 len)
1429 {
1430 u8 *p, *end;
1431 isdn_ctrl cmd;
1432
1433 if (!len) {
1434 printk(KERN_DEBUG "capidrv-%d: avmb1_q931_data: len == %d\n",
1435 card->contrnr, len);
1436 return;
1437 }
1438
1439 if (level2) {
1440 PUTBYTE_TO_STATUS(card, 'D');
1441 PUTBYTE_TO_STATUS(card, '2');
1442 PUTBYTE_TO_STATUS(card, send ? '>' : '<');
1443 PUTBYTE_TO_STATUS(card, ':');
1444 } else {
1445 PUTBYTE_TO_STATUS(card, 'D');
1446 PUTBYTE_TO_STATUS(card, '3');
1447 PUTBYTE_TO_STATUS(card, send ? '>' : '<');
1448 PUTBYTE_TO_STATUS(card, ':');
1449 }
1450
1451 for (p = data, end = data + len; p < end; p++) {
1452 PUTBYTE_TO_STATUS(card, ' ');
1453 PUTBYTE_TO_STATUS(card, hex_asc_hi(*p));
1454 PUTBYTE_TO_STATUS(card, hex_asc_lo(*p));
1455 }
1456 PUTBYTE_TO_STATUS(card, '\n');
1457
1458 cmd.command = ISDN_STAT_STAVAIL;
1459 cmd.driver = card->myid;
1460 cmd.arg = len * 3 + 5;
1461 card->interface.statcallb(&cmd);
1462 }
1463
1464 /* ------------------------------------------------------------------- */
1465
1466 static _cmsg cmdcmsg;
1467
1468 static int capidrv_ioctl(isdn_ctrl *c, capidrv_contr *card)
1469 {
1470 switch (c->arg) {
1471 case 1:
1472 debugmode = (int)(*((unsigned int *)c->parm.num));
1473 printk(KERN_DEBUG "capidrv-%d: debugmode=%d\n",
1474 card->contrnr, debugmode);
1475 return 0;
1476 default:
1477 printk(KERN_DEBUG "capidrv-%d: capidrv_ioctl(%ld) called ??\n",
1478 card->contrnr, c->arg);
1479 return -EINVAL;
1480 }
1481 return -EINVAL;
1482 }
1483
1484 /*
1485 * Handle leased lines (CAPI-Bundling)
1486 */
1487
1488 struct internal_bchannelinfo {
1489 unsigned short channelalloc;
1490 unsigned short operation;
1491 unsigned char cmask[31];
1492 };
1493
1494 static int decodeFVteln(char *teln, unsigned long *bmaskp, int *activep)
1495 {
1496 unsigned long bmask = 0;
1497 int active = !0;
1498 char *s;
1499 int i;
1500
1501 if (strncmp(teln, "FV:", 3) != 0)
1502 return 1;
1503 s = teln + 3;
1504 while (*s && *s == ' ') s++;
1505 if (!*s) return -2;
1506 if (*s == 'p' || *s == 'P') {
1507 active = 0;
1508 s++;
1509 }
1510 if (*s == 'a' || *s == 'A') {
1511 active = !0;
1512 s++;
1513 }
1514 while (*s) {
1515 int digit1 = 0;
1516 int digit2 = 0;
1517 char *endp;
1518
1519 digit1 = simple_strtoul(s, &endp, 10);
1520 if (s == endp)
1521 return -3;
1522 s = endp;
1523
1524 if (digit1 <= 0 || digit1 > 30) return -4;
1525 if (*s == 0 || *s == ',' || *s == ' ') {
1526 bmask |= (1 << digit1);
1527 digit1 = 0;
1528 if (*s) s++;
1529 continue;
1530 }
1531 if (*s != '-') return -5;
1532 s++;
1533
1534 digit2 = simple_strtoul(s, &endp, 10);
1535 if (s == endp)
1536 return -3;
1537 s = endp;
1538
1539 if (digit2 <= 0 || digit2 > 30) return -4;
1540 if (*s == 0 || *s == ',' || *s == ' ') {
1541 if (digit1 > digit2)
1542 for (i = digit2; i <= digit1; i++)
1543 bmask |= (1 << i);
1544 else
1545 for (i = digit1; i <= digit2; i++)
1546 bmask |= (1 << i);
1547 digit1 = digit2 = 0;
1548 if (*s) s++;
1549 continue;
1550 }
1551 return -6;
1552 }
1553 if (activep) *activep = active;
1554 if (bmaskp) *bmaskp = bmask;
1555 return 0;
1556 }
1557
1558 static int FVteln2capi20(char *teln, u8 AdditionalInfo[1 + 2 + 2 + 31])
1559 {
1560 unsigned long bmask;
1561 int active;
1562 int rc, i;
1563
1564 rc = decodeFVteln(teln, &bmask, &active);
1565 if (rc) return rc;
1566 /* Length */
1567 AdditionalInfo[0] = 2 + 2 + 31;
1568 /* Channel: 3 => use channel allocation */
1569 AdditionalInfo[1] = 3; AdditionalInfo[2] = 0;
1570 /* Operation: 0 => DTE mode, 1 => DCE mode */
1571 if (active) {
1572 AdditionalInfo[3] = 0; AdditionalInfo[4] = 0;
1573 } else {
1574 AdditionalInfo[3] = 1; AdditionalInfo[4] = 0;
1575 }
1576 /* Channel mask array */
1577 AdditionalInfo[5] = 0; /* no D-Channel */
1578 for (i = 1; i <= 30; i++)
1579 AdditionalInfo[5 + i] = (bmask & (1 << i)) ? 0xff : 0;
1580 return 0;
1581 }
1582
1583 static int capidrv_command(isdn_ctrl *c, capidrv_contr *card)
1584 {
1585 isdn_ctrl cmd;
1586 struct capidrv_bchan *bchan;
1587 struct capidrv_plci *plcip;
1588 u8 AdditionalInfo[1 + 2 + 2 + 31];
1589 int rc, isleasedline = 0;
1590
1591 if (c->command == ISDN_CMD_IOCTL)
1592 return capidrv_ioctl(c, card);
1593
1594 switch (c->command) {
1595 case ISDN_CMD_DIAL: {
1596 u8 calling[ISDN_MSNLEN + 3];
1597 u8 called[ISDN_MSNLEN + 2];
1598
1599 if (debugmode)
1600 printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_DIAL(ch=%ld,\"%s,%d,%d,%s\")\n",
1601 card->contrnr,
1602 c->arg,
1603 c->parm.setup.phone,
1604 c->parm.setup.si1,
1605 c->parm.setup.si2,
1606 c->parm.setup.eazmsn);
1607
1608 bchan = &card->bchans[c->arg % card->nbchan];
1609
1610 if (bchan->plcip) {
1611 printk(KERN_ERR "capidrv-%d: dail ch=%ld,\"%s,%d,%d,%s\" in use (plci=0x%x)\n",
1612 card->contrnr,
1613 c->arg,
1614 c->parm.setup.phone,
1615 c->parm.setup.si1,
1616 c->parm.setup.si2,
1617 c->parm.setup.eazmsn,
1618 bchan->plcip->plci);
1619 return 0;
1620 }
1621 bchan->si1 = c->parm.setup.si1;
1622 bchan->si2 = c->parm.setup.si2;
1623
1624 strncpy(bchan->num, c->parm.setup.phone, sizeof(bchan->num));
1625 strncpy(bchan->mynum, c->parm.setup.eazmsn, sizeof(bchan->mynum));
1626 rc = FVteln2capi20(bchan->num, AdditionalInfo);
1627 isleasedline = (rc == 0);
1628 if (rc < 0)
1629 printk(KERN_ERR "capidrv-%d: WARNING: invalid leased linedefinition \"%s\"\n", card->contrnr, bchan->num);
1630
1631 if (isleasedline) {
1632 calling[0] = 0;
1633 called[0] = 0;
1634 if (debugmode)
1635 printk(KERN_DEBUG "capidrv-%d: connecting leased line\n", card->contrnr);
1636 } else {
1637 calling[0] = strlen(bchan->mynum) + 2;
1638 calling[1] = 0;
1639 calling[2] = 0x80;
1640 strncpy(calling + 3, bchan->mynum, ISDN_MSNLEN);
1641 called[0] = strlen(bchan->num) + 1;
1642 called[1] = 0x80;
1643 strncpy(called + 2, bchan->num, ISDN_MSNLEN);
1644 }
1645
1646 capi_fill_CONNECT_REQ(&cmdcmsg,
1647 global.ap.applid,
1648 card->msgid++,
1649 card->contrnr, /* adr */
1650 si2cip(bchan->si1, bchan->si2), /* cipvalue */
1651 called, /* CalledPartyNumber */
1652 calling, /* CallingPartyNumber */
1653 NULL, /* CalledPartySubaddress */
1654 NULL, /* CallingPartySubaddress */
1655 b1prot(bchan->l2, bchan->l3), /* B1protocol */
1656 b2prot(bchan->l2, bchan->l3), /* B2protocol */
1657 b3prot(bchan->l2, bchan->l3), /* B3protocol */
1658 b1config(bchan->l2, bchan->l3), /* B1configuration */
1659 NULL, /* B2configuration */
1660 NULL, /* B3configuration */
1661 NULL, /* BC */
1662 NULL, /* LLC */
1663 NULL, /* HLC */
1664 /* BChannelinformation */
1665 isleasedline ? AdditionalInfo : NULL,
1666 NULL, /* Keypadfacility */
1667 NULL, /* Useruserdata */
1668 NULL /* Facilitydataarray */
1669 );
1670 if ((plcip = new_plci(card, (c->arg % card->nbchan))) == NULL) {
1671 cmd.command = ISDN_STAT_DHUP;
1672 cmd.driver = card->myid;
1673 cmd.arg = (c->arg % card->nbchan);
1674 card->interface.statcallb(&cmd);
1675 return -1;
1676 }
1677 plcip->msgid = cmdcmsg.Messagenumber;
1678 plcip->leasedline = isleasedline;
1679 plci_change_state(card, plcip, EV_PLCI_CONNECT_REQ);
1680 send_message(card, &cmdcmsg);
1681 return 0;
1682 }
1683
1684 case ISDN_CMD_ACCEPTD:
1685
1686 bchan = &card->bchans[c->arg % card->nbchan];
1687 if (debugmode)
1688 printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_ACCEPTD(ch=%ld) l2=%d l3=%d\n",
1689 card->contrnr,
1690 c->arg, bchan->l2, bchan->l3);
1691
1692 capi_fill_CONNECT_RESP(&cmdcmsg,
1693 global.ap.applid,
1694 card->msgid++,
1695 bchan->plcip->plci, /* adr */
1696 0, /* Reject */
1697 b1prot(bchan->l2, bchan->l3), /* B1protocol */
1698 b2prot(bchan->l2, bchan->l3), /* B2protocol */
1699 b3prot(bchan->l2, bchan->l3), /* B3protocol */
1700 b1config(bchan->l2, bchan->l3), /* B1configuration */
1701 NULL, /* B2configuration */
1702 NULL, /* B3configuration */
1703 NULL, /* ConnectedNumber */
1704 NULL, /* ConnectedSubaddress */
1705 NULL, /* LLC */
1706 NULL, /* BChannelinformation */
1707 NULL, /* Keypadfacility */
1708 NULL, /* Useruserdata */
1709 NULL /* Facilitydataarray */
1710 );
1711 capi_cmsg2message(&cmdcmsg, cmdcmsg.buf);
1712 plci_change_state(card, bchan->plcip, EV_PLCI_CONNECT_RESP);
1713 send_message(card, &cmdcmsg);
1714 return 0;
1715
1716 case ISDN_CMD_ACCEPTB:
1717 if (debugmode)
1718 printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_ACCEPTB(ch=%ld)\n",
1719 card->contrnr,
1720 c->arg);
1721 return -ENOSYS;
1722
1723 case ISDN_CMD_HANGUP:
1724 if (debugmode)
1725 printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_HANGUP(ch=%ld)\n",
1726 card->contrnr,
1727 c->arg);
1728 bchan = &card->bchans[c->arg % card->nbchan];
1729
1730 if (bchan->disconnecting) {
1731 if (debugmode)
1732 printk(KERN_DEBUG "capidrv-%d: chan %ld already disconnecting ...\n",
1733 card->contrnr,
1734 c->arg);
1735 return 0;
1736 }
1737 if (bchan->nccip) {
1738 bchan->disconnecting = 1;
1739 capi_fill_DISCONNECT_B3_REQ(&cmdcmsg,
1740 global.ap.applid,
1741 card->msgid++,
1742 bchan->nccip->ncci,
1743 NULL /* NCPI */
1744 );
1745 ncci_change_state(card, bchan->nccip, EV_NCCI_DISCONNECT_B3_REQ);
1746 send_message(card, &cmdcmsg);
1747 return 0;
1748 } else if (bchan->plcip) {
1749 if (bchan->plcip->state == ST_PLCI_INCOMING) {
1750 /*
1751 * just ignore, we a called from
1752 * isdn_status_callback(),
1753 * which will return 0 or 2, this is handled
1754 * by the CONNECT_IND handler
1755 */
1756 bchan->disconnecting = 1;
1757 return 0;
1758 } else if (bchan->plcip->plci) {
1759 bchan->disconnecting = 1;
1760 capi_fill_DISCONNECT_REQ(&cmdcmsg,
1761 global.ap.applid,
1762 card->msgid++,
1763 bchan->plcip->plci,
1764 NULL, /* BChannelinformation */
1765 NULL, /* Keypadfacility */
1766 NULL, /* Useruserdata */
1767 NULL /* Facilitydataarray */
1768 );
1769 plci_change_state(card, bchan->plcip, EV_PLCI_DISCONNECT_REQ);
1770 send_message(card, &cmdcmsg);
1771 return 0;
1772 } else {
1773 printk(KERN_ERR "capidrv-%d: chan %ld disconnect request while waiting for CONNECT_CONF\n",
1774 card->contrnr,
1775 c->arg);
1776 return -EINVAL;
1777 }
1778 }
1779 printk(KERN_ERR "capidrv-%d: chan %ld disconnect request on free channel\n",
1780 card->contrnr,
1781 c->arg);
1782 return -EINVAL;
1783 /* ready */
1784
1785 case ISDN_CMD_SETL2:
1786 if (debugmode)
1787 printk(KERN_DEBUG "capidrv-%d: set L2 on chan %ld to %ld\n",
1788 card->contrnr,
1789 (c->arg & 0xff), (c->arg >> 8));
1790 bchan = &card->bchans[(c->arg & 0xff) % card->nbchan];
1791 bchan->l2 = (c->arg >> 8);
1792 return 0;
1793
1794 case ISDN_CMD_SETL3:
1795 if (debugmode)
1796 printk(KERN_DEBUG "capidrv-%d: set L3 on chan %ld to %ld\n",
1797 card->contrnr,
1798 (c->arg & 0xff), (c->arg >> 8));
1799 bchan = &card->bchans[(c->arg & 0xff) % card->nbchan];
1800 bchan->l3 = (c->arg >> 8);
1801 return 0;
1802
1803 case ISDN_CMD_SETEAZ:
1804 if (debugmode)
1805 printk(KERN_DEBUG "capidrv-%d: set EAZ \"%s\" on chan %ld\n",
1806 card->contrnr,
1807 c->parm.num, c->arg);
1808 bchan = &card->bchans[c->arg % card->nbchan];
1809 strncpy(bchan->msn, c->parm.num, ISDN_MSNLEN);
1810 return 0;
1811
1812 case ISDN_CMD_CLREAZ:
1813 if (debugmode)
1814 printk(KERN_DEBUG "capidrv-%d: clearing EAZ on chan %ld\n",
1815 card->contrnr, c->arg);
1816 bchan = &card->bchans[c->arg % card->nbchan];
1817 bchan->msn[0] = 0;
1818 return 0;
1819
1820 default:
1821 printk(KERN_ERR "capidrv-%d: ISDN_CMD_%d, Huh?\n",
1822 card->contrnr, c->command);
1823 return -EINVAL;
1824 }
1825 return 0;
1826 }
1827
1828 static int if_command(isdn_ctrl *c)
1829 {
1830 capidrv_contr *card = findcontrbydriverid(c->driver);
1831
1832 if (card)
1833 return capidrv_command(c, card);
1834
1835 printk(KERN_ERR
1836 "capidrv: if_command %d called with invalid driverId %d!\n",
1837 c->command, c->driver);
1838 return -ENODEV;
1839 }
1840
1841 static _cmsg sendcmsg;
1842
1843 static int if_sendbuf(int id, int channel, int doack, struct sk_buff *skb)
1844 {
1845 capidrv_contr *card = findcontrbydriverid(id);
1846 capidrv_bchan *bchan;
1847 capidrv_ncci *nccip;
1848 int len = skb->len;
1849 int msglen;
1850 u16 errcode;
1851 u16 datahandle;
1852 u32 data;
1853
1854 if (!card) {
1855 printk(KERN_ERR "capidrv: if_sendbuf called with invalid driverId %d!\n",
1856 id);
1857 return 0;
1858 }
1859 if (debugmode > 4)
1860 printk(KERN_DEBUG "capidrv-%d: sendbuf len=%d skb=%p doack=%d\n",
1861 card->contrnr, len, skb, doack);
1862 bchan = &card->bchans[channel % card->nbchan];
1863 nccip = bchan->nccip;
1864 if (!nccip || nccip->state != ST_NCCI_ACTIVE) {
1865 printk(KERN_ERR "capidrv-%d: if_sendbuf: %s:%d: chan not up!\n",
1866 card->contrnr, card->name, channel);
1867 return 0;
1868 }
1869 datahandle = nccip->datahandle;
1870
1871 /*
1872 * Here we copy pointer skb->data into the 32-bit 'Data' field.
1873 * The 'Data' field is not used in practice in linux kernel
1874 * (neither in 32 or 64 bit), but should have some value,
1875 * since a CAPI message trace will display it.
1876 *
1877 * The correct value in the 32 bit case is the address of the
1878 * data, in 64 bit it makes no sense, we use 0 there.
1879 */
1880
1881 #ifdef CONFIG_64BIT
1882 data = 0;
1883 #else
1884 data = (unsigned long) skb->data;
1885 #endif
1886
1887 capi_fill_DATA_B3_REQ(&sendcmsg, global.ap.applid, card->msgid++,
1888 nccip->ncci, /* adr */
1889 data, /* Data */
1890 skb->len, /* DataLength */
1891 datahandle, /* DataHandle */
1892 0 /* Flags */
1893 );
1894
1895 if (capidrv_add_ack(nccip, datahandle, doack ? (int)skb->len : -1) < 0)
1896 return 0;
1897
1898 capi_cmsg2message(&sendcmsg, sendcmsg.buf);
1899 msglen = CAPIMSG_LEN(sendcmsg.buf);
1900 if (skb_headroom(skb) < msglen) {
1901 struct sk_buff *nskb = skb_realloc_headroom(skb, msglen);
1902 if (!nskb) {
1903 printk(KERN_ERR "capidrv-%d: if_sendbuf: no memory\n",
1904 card->contrnr);
1905 (void)capidrv_del_ack(nccip, datahandle);
1906 return 0;
1907 }
1908 printk(KERN_DEBUG "capidrv-%d: only %d bytes headroom, need %d\n",
1909 card->contrnr, skb_headroom(skb), msglen);
1910 memcpy(skb_push(nskb, msglen), sendcmsg.buf, msglen);
1911 errcode = capi20_put_message(&global.ap, nskb);
1912 if (errcode == CAPI_NOERROR) {
1913 dev_kfree_skb(skb);
1914 nccip->datahandle++;
1915 return len;
1916 }
1917 if (debugmode > 3)
1918 printk(KERN_DEBUG "capidrv-%d: sendbuf putmsg ret(%x) - %s\n",
1919 card->contrnr, errcode, capi_info2str(errcode));
1920 (void)capidrv_del_ack(nccip, datahandle);
1921 dev_kfree_skb(nskb);
1922 return errcode == CAPI_SENDQUEUEFULL ? 0 : -1;
1923 } else {
1924 memcpy(skb_push(skb, msglen), sendcmsg.buf, msglen);
1925 errcode = capi20_put_message(&global.ap, skb);
1926 if (errcode == CAPI_NOERROR) {
1927 nccip->datahandle++;
1928 return len;
1929 }
1930 if (debugmode > 3)
1931 printk(KERN_DEBUG "capidrv-%d: sendbuf putmsg ret(%x) - %s\n",
1932 card->contrnr, errcode, capi_info2str(errcode));
1933 skb_pull(skb, msglen);
1934 (void)capidrv_del_ack(nccip, datahandle);
1935 return errcode == CAPI_SENDQUEUEFULL ? 0 : -1;
1936 }
1937 }
1938
1939 static int if_readstat(u8 __user *buf, int len, int id, int channel)
1940 {
1941 capidrv_contr *card = findcontrbydriverid(id);
1942 int count;
1943 u8 __user *p;
1944
1945 if (!card) {
1946 printk(KERN_ERR "capidrv: if_readstat called with invalid driverId %d!\n",
1947 id);
1948 return -ENODEV;
1949 }
1950
1951 for (p = buf, count = 0; count < len; p++, count++) {
1952 if (put_user(*card->q931_read++, p))
1953 return -EFAULT;
1954 if (card->q931_read > card->q931_end)
1955 card->q931_read = card->q931_buf;
1956 }
1957 return count;
1958
1959 }
1960
1961 static void enable_dchannel_trace(capidrv_contr *card)
1962 {
1963 u8 manufacturer[CAPI_MANUFACTURER_LEN];
1964 capi_version version;
1965 u16 contr = card->contrnr;
1966 u16 errcode;
1967 u16 avmversion[3];
1968
1969 errcode = capi20_get_manufacturer(contr, manufacturer);
1970 if (errcode != CAPI_NOERROR) {
1971 printk(KERN_ERR "%s: can't get manufacturer (0x%x)\n",
1972 card->name, errcode);
1973 return;
1974 }
1975 if (strstr(manufacturer, "AVM") == NULL) {
1976 printk(KERN_ERR "%s: not from AVM, no d-channel trace possible (%s)\n",
1977 card->name, manufacturer);
1978 return;
1979 }
1980 errcode = capi20_get_version(contr, &version);
1981 if (errcode != CAPI_NOERROR) {
1982 printk(KERN_ERR "%s: can't get version (0x%x)\n",
1983 card->name, errcode);
1984 return;
1985 }
1986 avmversion[0] = (version.majormanuversion >> 4) & 0x0f;
1987 avmversion[1] = (version.majormanuversion << 4) & 0xf0;
1988 avmversion[1] |= (version.minormanuversion >> 4) & 0x0f;
1989 avmversion[2] |= version.minormanuversion & 0x0f;
1990
1991 if (avmversion[0] > 3 || (avmversion[0] == 3 && avmversion[1] > 5)) {
1992 printk(KERN_INFO "%s: D2 trace enabled\n", card->name);
1993 capi_fill_MANUFACTURER_REQ(&cmdcmsg, global.ap.applid,
1994 card->msgid++,
1995 contr,
1996 0x214D5641, /* ManuID */
1997 0, /* Class */
1998 1, /* Function */
1999 (_cstruct)"\004\200\014\000\000");
2000 } else {
2001 printk(KERN_INFO "%s: D3 trace enabled\n", card->name);
2002 capi_fill_MANUFACTURER_REQ(&cmdcmsg, global.ap.applid,
2003 card->msgid++,
2004 contr,
2005 0x214D5641, /* ManuID */
2006 0, /* Class */
2007 1, /* Function */
2008 (_cstruct)"\004\002\003\000\000");
2009 }
2010 send_message(card, &cmdcmsg);
2011 }
2012
2013
2014 static void send_listen(capidrv_contr *card)
2015 {
2016 capi_fill_LISTEN_REQ(&cmdcmsg, global.ap.applid,
2017 card->msgid++,
2018 card->contrnr, /* controller */
2019 1 << 6, /* Infomask */
2020 card->cipmask,
2021 card->cipmask2,
2022 NULL, NULL);
2023 listen_change_state(card, EV_LISTEN_REQ);
2024 send_message(card, &cmdcmsg);
2025 }
2026
2027 static void listentimerfunc(unsigned long x)
2028 {
2029 capidrv_contr *card = (capidrv_contr *)x;
2030 if (card->state != ST_LISTEN_NONE && card->state != ST_LISTEN_ACTIVE)
2031 printk(KERN_ERR "%s: controller dead ??\n", card->name);
2032 send_listen(card);
2033 mod_timer(&card->listentimer, jiffies + 60 * HZ);
2034 }
2035
2036
2037 static int capidrv_addcontr(u16 contr, struct capi_profile *profp)
2038 {
2039 capidrv_contr *card;
2040 unsigned long flags;
2041 isdn_ctrl cmd;
2042 char id[20];
2043 int i;
2044
2045 sprintf(id, "capidrv-%d", contr);
2046 if (!try_module_get(THIS_MODULE)) {
2047 printk(KERN_WARNING "capidrv: (%s) Could not reserve module\n", id);
2048 return -1;
2049 }
2050 if (!(card = kzalloc(sizeof(capidrv_contr), GFP_ATOMIC))) {
2051 printk(KERN_WARNING
2052 "capidrv: (%s) Could not allocate contr-struct.\n", id);
2053 return -1;
2054 }
2055 card->owner = THIS_MODULE;
2056 init_timer(&card->listentimer);
2057 strcpy(card->name, id);
2058 card->contrnr = contr;
2059 card->nbchan = profp->nbchannel;
2060 card->bchans = kmalloc(sizeof(capidrv_bchan) * card->nbchan, GFP_ATOMIC);
2061 if (!card->bchans) {
2062 printk(KERN_WARNING
2063 "capidrv: (%s) Could not allocate bchan-structs.\n", id);
2064 module_put(card->owner);
2065 kfree(card);
2066 return -1;
2067 }
2068 card->interface.channels = profp->nbchannel;
2069 card->interface.maxbufsize = 2048;
2070 card->interface.command = if_command;
2071 card->interface.writebuf_skb = if_sendbuf;
2072 card->interface.writecmd = NULL;
2073 card->interface.readstat = if_readstat;
2074 card->interface.features =
2075 ISDN_FEATURE_L2_HDLC |
2076 ISDN_FEATURE_L2_TRANS |
2077 ISDN_FEATURE_L3_TRANS |
2078 ISDN_FEATURE_P_UNKNOWN |
2079 ISDN_FEATURE_L2_X75I |
2080 ISDN_FEATURE_L2_X75UI |
2081 ISDN_FEATURE_L2_X75BUI;
2082 if (profp->support1 & (1 << 2))
2083 card->interface.features |=
2084 ISDN_FEATURE_L2_V11096 |
2085 ISDN_FEATURE_L2_V11019 |
2086 ISDN_FEATURE_L2_V11038;
2087 if (profp->support1 & (1 << 8))
2088 card->interface.features |= ISDN_FEATURE_L2_MODEM;
2089 card->interface.hl_hdrlen = 22; /* len of DATA_B3_REQ */
2090 strncpy(card->interface.id, id, sizeof(card->interface.id) - 1);
2091
2092
2093 card->q931_read = card->q931_buf;
2094 card->q931_write = card->q931_buf;
2095 card->q931_end = card->q931_buf + sizeof(card->q931_buf) - 1;
2096
2097 if (!register_isdn(&card->interface)) {
2098 printk(KERN_ERR "capidrv: Unable to register contr %s\n", id);
2099 kfree(card->bchans);
2100 module_put(card->owner);
2101 kfree(card);
2102 return -1;
2103 }
2104 card->myid = card->interface.channels;
2105 memset(card->bchans, 0, sizeof(capidrv_bchan) * card->nbchan);
2106 for (i = 0; i < card->nbchan; i++) {
2107 card->bchans[i].contr = card;
2108 }
2109
2110 spin_lock_irqsave(&global_lock, flags);
2111 card->next = global.contr_list;
2112 global.contr_list = card;
2113 global.ncontr++;
2114 spin_unlock_irqrestore(&global_lock, flags);
2115
2116 cmd.command = ISDN_STAT_RUN;
2117 cmd.driver = card->myid;
2118 card->interface.statcallb(&cmd);
2119
2120 card->cipmask = 0x1FFF03FF; /* any */
2121 card->cipmask2 = 0;
2122
2123 card->listentimer.data = (unsigned long)card;
2124 card->listentimer.function = listentimerfunc;
2125 send_listen(card);
2126 mod_timer(&card->listentimer, jiffies + 60 * HZ);
2127
2128 printk(KERN_INFO "%s: now up (%d B channels)\n",
2129 card->name, card->nbchan);
2130
2131 enable_dchannel_trace(card);
2132
2133 return 0;
2134 }
2135
2136 static int capidrv_delcontr(u16 contr)
2137 {
2138 capidrv_contr **pp, *card;
2139 unsigned long flags;
2140 isdn_ctrl cmd;
2141
2142 spin_lock_irqsave(&global_lock, flags);
2143 for (card = global.contr_list; card; card = card->next) {
2144 if (card->contrnr == contr)
2145 break;
2146 }
2147 if (!card) {
2148 spin_unlock_irqrestore(&global_lock, flags);
2149 printk(KERN_ERR "capidrv: delcontr: no contr %u\n", contr);
2150 return -1;
2151 }
2152
2153 /* FIXME: maybe a race condition the card should be removed
2154 * here from global list /kkeil
2155 */
2156 spin_unlock_irqrestore(&global_lock, flags);
2157
2158 del_timer(&card->listentimer);
2159
2160 if (debugmode)
2161 printk(KERN_DEBUG "capidrv-%d: id=%d unloading\n",
2162 card->contrnr, card->myid);
2163
2164 cmd.command = ISDN_STAT_STOP;
2165 cmd.driver = card->myid;
2166 card->interface.statcallb(&cmd);
2167
2168 while (card->nbchan) {
2169
2170 cmd.command = ISDN_STAT_DISCH;
2171 cmd.driver = card->myid;
2172 cmd.arg = card->nbchan - 1;
2173 cmd.parm.num[0] = 0;
2174 if (debugmode)
2175 printk(KERN_DEBUG "capidrv-%d: id=%d disable chan=%ld\n",
2176 card->contrnr, card->myid, cmd.arg);
2177 card->interface.statcallb(&cmd);
2178
2179 if (card->bchans[card->nbchan - 1].nccip)
2180 free_ncci(card, card->bchans[card->nbchan - 1].nccip);
2181 if (card->bchans[card->nbchan - 1].plcip)
2182 free_plci(card, card->bchans[card->nbchan - 1].plcip);
2183 if (card->plci_list)
2184 printk(KERN_ERR "capidrv: bug in free_plci()\n");
2185 card->nbchan--;
2186 }
2187 kfree(card->bchans);
2188 card->bchans = NULL;
2189
2190 if (debugmode)
2191 printk(KERN_DEBUG "capidrv-%d: id=%d isdn unload\n",
2192 card->contrnr, card->myid);
2193
2194 cmd.command = ISDN_STAT_UNLOAD;
2195 cmd.driver = card->myid;
2196 card->interface.statcallb(&cmd);
2197
2198 if (debugmode)
2199 printk(KERN_DEBUG "capidrv-%d: id=%d remove contr from list\n",
2200 card->contrnr, card->myid);
2201
2202 spin_lock_irqsave(&global_lock, flags);
2203 for (pp = &global.contr_list; *pp; pp = &(*pp)->next) {
2204 if (*pp == card) {
2205 *pp = (*pp)->next;
2206 card->next = NULL;
2207 global.ncontr--;
2208 break;
2209 }
2210 }
2211 spin_unlock_irqrestore(&global_lock, flags);
2212
2213 module_put(card->owner);
2214 printk(KERN_INFO "%s: now down.\n", card->name);
2215 kfree(card);
2216 return 0;
2217 }
2218
2219
2220 static int
2221 lower_callback(struct notifier_block *nb, unsigned long val, void *v)
2222 {
2223 capi_profile profile;
2224 u32 contr = (long)v;
2225
2226 switch (val) {
2227 case CAPICTR_UP:
2228 printk(KERN_INFO "capidrv: controller %hu up\n", contr);
2229 if (capi20_get_profile(contr, &profile) == CAPI_NOERROR)
2230 (void) capidrv_addcontr(contr, &profile);
2231 break;
2232 case CAPICTR_DOWN:
2233 printk(KERN_INFO "capidrv: controller %hu down\n", contr);
2234 (void) capidrv_delcontr(contr);
2235 break;
2236 }
2237 return NOTIFY_OK;
2238 }
2239
2240 /*
2241 * /proc/capi/capidrv:
2242 * nrecvctlpkt nrecvdatapkt nsendctlpkt nsenddatapkt
2243 */
2244 static int capidrv_proc_show(struct seq_file *m, void *v)
2245 {
2246 seq_printf(m, "%lu %lu %lu %lu\n",
2247 global.ap.nrecvctlpkt,
2248 global.ap.nrecvdatapkt,
2249 global.ap.nsentctlpkt,
2250 global.ap.nsentdatapkt);
2251 return 0;
2252 }
2253
2254 static int capidrv_proc_open(struct inode *inode, struct file *file)
2255 {
2256 return single_open(file, capidrv_proc_show, NULL);
2257 }
2258
2259 static const struct file_operations capidrv_proc_fops = {
2260 .owner = THIS_MODULE,
2261 .open = capidrv_proc_open,
2262 .read = seq_read,
2263 .llseek = seq_lseek,
2264 .release = single_release,
2265 };
2266
2267 static void __init proc_init(void)
2268 {
2269 proc_create("capi/capidrv", 0, NULL, &capidrv_proc_fops);
2270 }
2271
2272 static void __exit proc_exit(void)
2273 {
2274 remove_proc_entry("capi/capidrv", NULL);
2275 }
2276
2277 static struct notifier_block capictr_nb = {
2278 .notifier_call = lower_callback,
2279 };
2280
2281 static int __init capidrv_init(void)
2282 {
2283 capi_profile profile;
2284 u32 ncontr, contr;
2285 u16 errcode;
2286
2287 global.ap.rparam.level3cnt = -2; /* number of bchannels twice */
2288 global.ap.rparam.datablkcnt = 16;
2289 global.ap.rparam.datablklen = 2048;
2290
2291 global.ap.recv_message = capidrv_recv_message;
2292 errcode = capi20_register(&global.ap);
2293 if (errcode) {
2294 return -EIO;
2295 }
2296
2297 register_capictr_notifier(&capictr_nb);
2298
2299 errcode = capi20_get_profile(0, &profile);
2300 if (errcode != CAPI_NOERROR) {
2301 unregister_capictr_notifier(&capictr_nb);
2302 capi20_release(&global.ap);
2303 return -EIO;
2304 }
2305
2306 ncontr = profile.ncontroller;
2307 for (contr = 1; contr <= ncontr; contr++) {
2308 errcode = capi20_get_profile(contr, &profile);
2309 if (errcode != CAPI_NOERROR)
2310 continue;
2311 (void) capidrv_addcontr(contr, &profile);
2312 }
2313 proc_init();
2314
2315 return 0;
2316 }
2317
2318 static void __exit capidrv_exit(void)
2319 {
2320 unregister_capictr_notifier(&capictr_nb);
2321 capi20_release(&global.ap);
2322
2323 proc_exit();
2324 }
2325
2326 module_init(capidrv_init);
2327 module_exit(capidrv_exit);
Linus' kernel tree