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ext4: Don't overwrite allocation_context ac_status
[linux-2.6/x86.git] / drivers / isdn / capi / capidrv.c
blobd5b4cc357a3c77dff03b704070063e2bed0ac11c
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, 0);
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 send_message(card, &cmsg);
675 plci_change_state(card, ncci->plcip, EV_PLCI_DISCONNECT_REQ);
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 = "unkown 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 send_message(card, cmsg);
928 plci_change_state(card, plcip, EV_PLCI_CONNECT_REJECT);
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 send_message(card, cmsg);
978 plci_change_state(card, plcip, EV_PLCI_CONNECT_REJECT);
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 send_message(card, cmsg);
987 plci_change_state(card, plcip, EV_PLCI_CONNECT_REJECT);
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 send_message(card, cmsg);
1024 plci_change_state(card, plcip, EV_PLCI_DISCONNECT_RESP);
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 send_message(card, cmsg);
1082 plci_change_state(card, plcip, EV_PLCI_CONNECT_ACTIVE_IND);
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 send_message(card, cmsg);
1102 cmd.command = ISDN_STAT_DCONN;
1103 cmd.driver = card->myid;
1104 cmd.arg = plcip->chan;
1105 card->interface.statcallb(&cmd);
1106 plci_change_state(card, plcip, EV_PLCI_CONNECT_ACTIVE_IND);
1107 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_REQ);
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 send_message(card, cmsg);
1197 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_ACTIVE_IND);
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 send_message(card, cmsg);
1226 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_RESP);
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 send_message(card, cmsg);
1303 ncci_change_state(card, nccip, EV_NCCI_DISCONNECT_B3_RESP);
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 u8 w;
1453 PUTBYTE_TO_STATUS(card, ' ');
1454 w = (*p >> 4) & 0xf;
1455 PUTBYTE_TO_STATUS(card, (w < 10) ? '0'+w : 'A'-10+w);
1456 w = *p & 0xf;
1457 PUTBYTE_TO_STATUS(card, (w < 10) ? '0'+w : 'A'-10+w);
1458 }
1459 PUTBYTE_TO_STATUS(card, '\n');
1460
1461 cmd.command = ISDN_STAT_STAVAIL;
1462 cmd.driver = card->myid;
1463 cmd.arg = len*3+5;
1464 card->interface.statcallb(&cmd);
1465 }
1466
1467 /* ------------------------------------------------------------------- */
1468
1469 static _cmsg cmdcmsg;
1470
1471 static int capidrv_ioctl(isdn_ctrl * c, capidrv_contr * card)
1472 {
1473 switch (c->arg) {
1474 case 1:
1475 debugmode = (int)(*((unsigned int *)c->parm.num));
1476 printk(KERN_DEBUG "capidrv-%d: debugmode=%d\n",
1477 card->contrnr, debugmode);
1478 return 0;
1479 default:
1480 printk(KERN_DEBUG "capidrv-%d: capidrv_ioctl(%ld) called ??\n",
1481 card->contrnr, c->arg);
1482 return -EINVAL;
1483 }
1484 return -EINVAL;
1485 }
1486
1487 /*
1488 * Handle leased lines (CAPI-Bundling)
1489 */
1490
1491 struct internal_bchannelinfo {
1492 unsigned short channelalloc;
1493 unsigned short operation;
1494 unsigned char cmask[31];
1495 };
1496
1497 static int decodeFVteln(char *teln, unsigned long *bmaskp, int *activep)
1498 {
1499 unsigned long bmask = 0;
1500 int active = !0;
1501 char *s;
1502 int i;
1503
1504 if (strncmp(teln, "FV:", 3) != 0)
1505 return 1;
1506 s = teln + 3;
1507 while (*s && *s == ' ') s++;
1508 if (!*s) return -2;
1509 if (*s == 'p' || *s == 'P') {
1510 active = 0;
1511 s++;
1512 }
1513 if (*s == 'a' || *s == 'A') {
1514 active = !0;
1515 s++;
1516 }
1517 while (*s) {
1518 int digit1 = 0;
1519 int digit2 = 0;
1520 if (!isdigit(*s)) return -3;
1521 while (isdigit(*s)) { digit1 = digit1*10 + (*s - '0'); s++; }
1522 if (digit1 <= 0 && digit1 > 30) return -4;
1523 if (*s == 0 || *s == ',' || *s == ' ') {
1524 bmask |= (1 << digit1);
1525 digit1 = 0;
1526 if (*s) s++;
1527 continue;
1528 }
1529 if (*s != '-') return -5;
1530 s++;
1531 if (!isdigit(*s)) return -3;
1532 while (isdigit(*s)) { digit2 = digit2*10 + (*s - '0'); s++; }
1533 if (digit2 <= 0 && digit2 > 30) return -4;
1534 if (*s == 0 || *s == ',' || *s == ' ') {
1535 if (digit1 > digit2)
1536 for (i = digit2; i <= digit1 ; i++)
1537 bmask |= (1 << i);
1538 else
1539 for (i = digit1; i <= digit2 ; i++)
1540 bmask |= (1 << i);
1541 digit1 = digit2 = 0;
1542 if (*s) s++;
1543 continue;
1544 }
1545 return -6;
1546 }
1547 if (activep) *activep = active;
1548 if (bmaskp) *bmaskp = bmask;
1549 return 0;
1550 }
1551
1552 static int FVteln2capi20(char *teln, u8 AdditionalInfo[1+2+2+31])
1553 {
1554 unsigned long bmask;
1555 int active;
1556 int rc, i;
1557
1558 rc = decodeFVteln(teln, &bmask, &active);
1559 if (rc) return rc;
1560 /* Length */
1561 AdditionalInfo[0] = 2+2+31;
1562 /* Channel: 3 => use channel allocation */
1563 AdditionalInfo[1] = 3; AdditionalInfo[2] = 0;
1564 /* Operation: 0 => DTE mode, 1 => DCE mode */
1565 if (active) {
1566 AdditionalInfo[3] = 0; AdditionalInfo[4] = 0;
1567 } else {
1568 AdditionalInfo[3] = 1; AdditionalInfo[4] = 0;
1569 }
1570 /* Channel mask array */
1571 AdditionalInfo[5] = 0; /* no D-Channel */
1572 for (i=1; i <= 30; i++)
1573 AdditionalInfo[5+i] = (bmask & (1 << i)) ? 0xff : 0;
1574 return 0;
1575 }
1576
1577 static int capidrv_command(isdn_ctrl * c, capidrv_contr * card)
1578 {
1579 isdn_ctrl cmd;
1580 struct capidrv_bchan *bchan;
1581 struct capidrv_plci *plcip;
1582 u8 AdditionalInfo[1+2+2+31];
1583 int rc, isleasedline = 0;
1584
1585 if (c->command == ISDN_CMD_IOCTL)
1586 return capidrv_ioctl(c, card);
1587
1588 switch (c->command) {
1589 case ISDN_CMD_DIAL:{
1590 u8 calling[ISDN_MSNLEN + 3];
1591 u8 called[ISDN_MSNLEN + 2];
1592
1593 if (debugmode)
1594 printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_DIAL(ch=%ld,\"%s,%d,%d,%s\")\n",
1595 card->contrnr,
1596 c->arg,
1597 c->parm.setup.phone,
1598 c->parm.setup.si1,
1599 c->parm.setup.si2,
1600 c->parm.setup.eazmsn);
1601
1602 bchan = &card->bchans[c->arg % card->nbchan];
1603
1604 if (bchan->plcip) {
1605 printk(KERN_ERR "capidrv-%d: dail ch=%ld,\"%s,%d,%d,%s\" in use (plci=0x%x)\n",
1606 card->contrnr,
1607 c->arg,
1608 c->parm.setup.phone,
1609 c->parm.setup.si1,
1610 c->parm.setup.si2,
1611 c->parm.setup.eazmsn,
1612 bchan->plcip->plci);
1613 return 0;
1614 }
1615 bchan->si1 = c->parm.setup.si1;
1616 bchan->si2 = c->parm.setup.si2;
1617
1618 strncpy(bchan->num, c->parm.setup.phone, sizeof(bchan->num));
1619 strncpy(bchan->mynum, c->parm.setup.eazmsn, sizeof(bchan->mynum));
1620 rc = FVteln2capi20(bchan->num, AdditionalInfo);
1621 isleasedline = (rc == 0);
1622 if (rc < 0)
1623 printk(KERN_ERR "capidrv-%d: WARNING: invalid leased linedefinition \"%s\"\n", card->contrnr, bchan->num);
1624
1625 if (isleasedline) {
1626 calling[0] = 0;
1627 called[0] = 0;
1628 if (debugmode)
1629 printk(KERN_DEBUG "capidrv-%d: connecting leased line\n", card->contrnr);
1630 } else {
1631 calling[0] = strlen(bchan->mynum) + 2;
1632 calling[1] = 0;
1633 calling[2] = 0x80;
1634 strncpy(calling + 3, bchan->mynum, ISDN_MSNLEN);
1635 called[0] = strlen(bchan->num) + 1;
1636 called[1] = 0x80;
1637 strncpy(called + 2, bchan->num, ISDN_MSNLEN);
1638 }
1639
1640 capi_fill_CONNECT_REQ(&cmdcmsg,
1641 global.ap.applid,
1642 card->msgid++,
1643 card->contrnr, /* adr */
1644 si2cip(bchan->si1, bchan->si2), /* cipvalue */
1645 called, /* CalledPartyNumber */
1646 calling, /* CallingPartyNumber */
1647 NULL, /* CalledPartySubaddress */
1648 NULL, /* CallingPartySubaddress */
1649 b1prot(bchan->l2, bchan->l3), /* B1protocol */
1650 b2prot(bchan->l2, bchan->l3), /* B2protocol */
1651 b3prot(bchan->l2, bchan->l3), /* B3protocol */
1652 b1config(bchan->l2, bchan->l3), /* B1configuration */
1653 NULL, /* B2configuration */
1654 NULL, /* B3configuration */
1655 NULL, /* BC */
1656 NULL, /* LLC */
1657 NULL, /* HLC */
1658 /* BChannelinformation */
1659 isleasedline ? AdditionalInfo : NULL,
1660 NULL, /* Keypadfacility */
1661 NULL, /* Useruserdata */
1662 NULL /* Facilitydataarray */
1663 );
1664 if ((plcip = new_plci(card, (c->arg % card->nbchan))) == NULL) {
1665 cmd.command = ISDN_STAT_DHUP;
1666 cmd.driver = card->myid;
1667 cmd.arg = (c->arg % card->nbchan);
1668 card->interface.statcallb(&cmd);
1669 return -1;
1670 }
1671 plcip->msgid = cmdcmsg.Messagenumber;
1672 plcip->leasedline = isleasedline;
1673 plci_change_state(card, plcip, EV_PLCI_CONNECT_REQ);
1674 send_message(card, &cmdcmsg);
1675 return 0;
1676 }
1677
1678 case ISDN_CMD_ACCEPTD:
1679
1680 bchan = &card->bchans[c->arg % card->nbchan];
1681 if (debugmode)
1682 printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_ACCEPTD(ch=%ld) l2=%d l3=%d\n",
1683 card->contrnr,
1684 c->arg, bchan->l2, bchan->l3);
1685
1686 capi_fill_CONNECT_RESP(&cmdcmsg,
1687 global.ap.applid,
1688 card->msgid++,
1689 bchan->plcip->plci, /* adr */
1690 0, /* Reject */
1691 b1prot(bchan->l2, bchan->l3), /* B1protocol */
1692 b2prot(bchan->l2, bchan->l3), /* B2protocol */
1693 b3prot(bchan->l2, bchan->l3), /* B3protocol */
1694 b1config(bchan->l2, bchan->l3), /* B1configuration */
1695 NULL, /* B2configuration */
1696 NULL, /* B3configuration */
1697 NULL, /* ConnectedNumber */
1698 NULL, /* ConnectedSubaddress */
1699 NULL, /* LLC */
1700 NULL, /* BChannelinformation */
1701 NULL, /* Keypadfacility */
1702 NULL, /* Useruserdata */
1703 NULL /* Facilitydataarray */
1704 );
1705 capi_cmsg2message(&cmdcmsg, cmdcmsg.buf);
1706 plci_change_state(card, bchan->plcip, EV_PLCI_CONNECT_RESP);
1707 send_message(card, &cmdcmsg);
1708 return 0;
1709
1710 case ISDN_CMD_ACCEPTB:
1711 if (debugmode)
1712 printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_ACCEPTB(ch=%ld)\n",
1713 card->contrnr,
1714 c->arg);
1715 return -ENOSYS;
1716
1717 case ISDN_CMD_HANGUP:
1718 if (debugmode)
1719 printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_HANGUP(ch=%ld)\n",
1720 card->contrnr,
1721 c->arg);
1722 bchan = &card->bchans[c->arg % card->nbchan];
1723
1724 if (bchan->disconnecting) {
1725 if (debugmode)
1726 printk(KERN_DEBUG "capidrv-%d: chan %ld already disconnecting ...\n",
1727 card->contrnr,
1728 c->arg);
1729 return 0;
1730 }
1731 if (bchan->nccip) {
1732 bchan->disconnecting = 1;
1733 capi_fill_DISCONNECT_B3_REQ(&cmdcmsg,
1734 global.ap.applid,
1735 card->msgid++,
1736 bchan->nccip->ncci,
1737 NULL /* NCPI */
1738 );
1739 ncci_change_state(card, bchan->nccip, EV_NCCI_DISCONNECT_B3_REQ);
1740 send_message(card, &cmdcmsg);
1741 return 0;
1742 } else if (bchan->plcip) {
1743 if (bchan->plcip->state == ST_PLCI_INCOMING) {
1744 /*
1745 * just ignore, we a called from
1746 * isdn_status_callback(),
1747 * which will return 0 or 2, this is handled
1748 * by the CONNECT_IND handler
1749 */
1750 bchan->disconnecting = 1;
1751 return 0;
1752 } else if (bchan->plcip->plci) {
1753 bchan->disconnecting = 1;
1754 capi_fill_DISCONNECT_REQ(&cmdcmsg,
1755 global.ap.applid,
1756 card->msgid++,
1757 bchan->plcip->plci,
1758 NULL, /* BChannelinformation */
1759 NULL, /* Keypadfacility */
1760 NULL, /* Useruserdata */
1761 NULL /* Facilitydataarray */
1762 );
1763 plci_change_state(card, bchan->plcip, EV_PLCI_DISCONNECT_REQ);
1764 send_message(card, &cmdcmsg);
1765 return 0;
1766 } else {
1767 printk(KERN_ERR "capidrv-%d: chan %ld disconnect request while waiting for CONNECT_CONF\n",
1768 card->contrnr,
1769 c->arg);
1770 return -EINVAL;
1771 }
1772 }
1773 printk(KERN_ERR "capidrv-%d: chan %ld disconnect request on free channel\n",
1774 card->contrnr,
1775 c->arg);
1776 return -EINVAL;
1777 /* ready */
1778
1779 case ISDN_CMD_SETL2:
1780 if (debugmode)
1781 printk(KERN_DEBUG "capidrv-%d: set L2 on chan %ld to %ld\n",
1782 card->contrnr,
1783 (c->arg & 0xff), (c->arg >> 8));
1784 bchan = &card->bchans[(c->arg & 0xff) % card->nbchan];
1785 bchan->l2 = (c->arg >> 8);
1786 return 0;
1787
1788 case ISDN_CMD_SETL3:
1789 if (debugmode)
1790 printk(KERN_DEBUG "capidrv-%d: set L3 on chan %ld to %ld\n",
1791 card->contrnr,
1792 (c->arg & 0xff), (c->arg >> 8));
1793 bchan = &card->bchans[(c->arg & 0xff) % card->nbchan];
1794 bchan->l3 = (c->arg >> 8);
1795 return 0;
1796
1797 case ISDN_CMD_SETEAZ:
1798 if (debugmode)
1799 printk(KERN_DEBUG "capidrv-%d: set EAZ \"%s\" on chan %ld\n",
1800 card->contrnr,
1801 c->parm.num, c->arg);
1802 bchan = &card->bchans[c->arg % card->nbchan];
1803 strncpy(bchan->msn, c->parm.num, ISDN_MSNLEN);
1804 return 0;
1805
1806 case ISDN_CMD_CLREAZ:
1807 if (debugmode)
1808 printk(KERN_DEBUG "capidrv-%d: clearing EAZ on chan %ld\n",
1809 card->contrnr, c->arg);
1810 bchan = &card->bchans[c->arg % card->nbchan];
1811 bchan->msn[0] = 0;
1812 return 0;
1813
1814 default:
1815 printk(KERN_ERR "capidrv-%d: ISDN_CMD_%d, Huh?\n",
1816 card->contrnr, c->command);
1817 return -EINVAL;
1818 }
1819 return 0;
1820 }
1821
1822 static int if_command(isdn_ctrl * c)
1823 {
1824 capidrv_contr *card = findcontrbydriverid(c->driver);
1825
1826 if (card)
1827 return capidrv_command(c, card);
1828
1829 printk(KERN_ERR
1830 "capidrv: if_command %d called with invalid driverId %d!\n",
1831 c->command, c->driver);
1832 return -ENODEV;
1833 }
1834
1835 static _cmsg sendcmsg;
1836
1837 static int if_sendbuf(int id, int channel, int doack, struct sk_buff *skb)
1838 {
1839 capidrv_contr *card = findcontrbydriverid(id);
1840 capidrv_bchan *bchan;
1841 capidrv_ncci *nccip;
1842 int len = skb->len;
1843 int msglen;
1844 u16 errcode;
1845 u16 datahandle;
1846 u32 data;
1847
1848 if (!card) {
1849 printk(KERN_ERR "capidrv: if_sendbuf called with invalid driverId %d!\n",
1850 id);
1851 return 0;
1852 }
1853 if (debugmode > 4)
1854 printk(KERN_DEBUG "capidrv-%d: sendbuf len=%d skb=%p doack=%d\n",
1855 card->contrnr, len, skb, doack);
1856 bchan = &card->bchans[channel % card->nbchan];
1857 nccip = bchan->nccip;
1858 if (!nccip || nccip->state != ST_NCCI_ACTIVE) {
1859 printk(KERN_ERR "capidrv-%d: if_sendbuf: %s:%d: chan not up!\n",
1860 card->contrnr, card->name, channel);
1861 return 0;
1862 }
1863 datahandle = nccip->datahandle;
1864
1865 /*
1866 * Here we copy pointer skb->data into the 32-bit 'Data' field.
1867 * The 'Data' field is not used in practice in linux kernel
1868 * (neither in 32 or 64 bit), but should have some value,
1869 * since a CAPI message trace will display it.
1870 *
1871 * The correct value in the 32 bit case is the address of the
1872 * data, in 64 bit it makes no sense, we use 0 there.
1873 */
1874
1875 #ifdef CONFIG_64BIT
1876 data = 0;
1877 #else
1878 data = (unsigned long) skb->data;
1879 #endif
1880
1881 capi_fill_DATA_B3_REQ(&sendcmsg, global.ap.applid, card->msgid++,
1882 nccip->ncci, /* adr */
1883 data, /* Data */
1884 skb->len, /* DataLength */
1885 datahandle, /* DataHandle */
1886 0 /* Flags */
1887 );
1888
1889 if (capidrv_add_ack(nccip, datahandle, doack ? (int)skb->len : -1) < 0)
1890 return 0;
1891
1892 capi_cmsg2message(&sendcmsg, sendcmsg.buf);
1893 msglen = CAPIMSG_LEN(sendcmsg.buf);
1894 if (skb_headroom(skb) < msglen) {
1895 struct sk_buff *nskb = skb_realloc_headroom(skb, msglen);
1896 if (!nskb) {
1897 printk(KERN_ERR "capidrv-%d: if_sendbuf: no memory\n",
1898 card->contrnr);
1899 (void)capidrv_del_ack(nccip, datahandle);
1900 return 0;
1901 }
1902 printk(KERN_DEBUG "capidrv-%d: only %d bytes headroom, need %d\n",
1903 card->contrnr, skb_headroom(skb), msglen);
1904 memcpy(skb_push(nskb, msglen), sendcmsg.buf, msglen);
1905 errcode = capi20_put_message(&global.ap, nskb);
1906 if (errcode == CAPI_NOERROR) {
1907 dev_kfree_skb(skb);
1908 nccip->datahandle++;
1909 return len;
1910 }
1911 if (debugmode > 3)
1912 printk(KERN_DEBUG "capidrv-%d: sendbuf putmsg ret(%x) - %s\n",
1913 card->contrnr, errcode, capi_info2str(errcode));
1914 (void)capidrv_del_ack(nccip, datahandle);
1915 dev_kfree_skb(nskb);
1916 return errcode == CAPI_SENDQUEUEFULL ? 0 : -1;
1917 } else {
1918 memcpy(skb_push(skb, msglen), sendcmsg.buf, msglen);
1919 errcode = capi20_put_message(&global.ap, skb);
1920 if (errcode == CAPI_NOERROR) {
1921 nccip->datahandle++;
1922 return len;
1923 }
1924 if (debugmode > 3)
1925 printk(KERN_DEBUG "capidrv-%d: sendbuf putmsg ret(%x) - %s\n",
1926 card->contrnr, errcode, capi_info2str(errcode));
1927 skb_pull(skb, msglen);
1928 (void)capidrv_del_ack(nccip, datahandle);
1929 return errcode == CAPI_SENDQUEUEFULL ? 0 : -1;
1930 }
1931 }
1932
1933 static int if_readstat(u8 __user *buf, int len, int id, int channel)
1934 {
1935 capidrv_contr *card = findcontrbydriverid(id);
1936 int count;
1937 u8 __user *p;
1938
1939 if (!card) {
1940 printk(KERN_ERR "capidrv: if_readstat called with invalid driverId %d!\n",
1941 id);
1942 return -ENODEV;
1943 }
1944
1945 for (p=buf, count=0; count < len; p++, count++) {
1946 if (put_user(*card->q931_read++, p))
1947 return -EFAULT;
1948 if (card->q931_read > card->q931_end)
1949 card->q931_read = card->q931_buf;
1950 }
1951 return count;
1952
1953 }
1954
1955 static void enable_dchannel_trace(capidrv_contr *card)
1956 {
1957 u8 manufacturer[CAPI_MANUFACTURER_LEN];
1958 capi_version version;
1959 u16 contr = card->contrnr;
1960 u16 errcode;
1961 u16 avmversion[3];
1962
1963 errcode = capi20_get_manufacturer(contr, manufacturer);
1964 if (errcode != CAPI_NOERROR) {
1965 printk(KERN_ERR "%s: can't get manufacturer (0x%x)\n",
1966 card->name, errcode);
1967 return;
1968 }
1969 if (strstr(manufacturer, "AVM") == NULL) {
1970 printk(KERN_ERR "%s: not from AVM, no d-channel trace possible (%s)\n",
1971 card->name, manufacturer);
1972 return;
1973 }
1974 errcode = capi20_get_version(contr, &version);
1975 if (errcode != CAPI_NOERROR) {
1976 printk(KERN_ERR "%s: can't get version (0x%x)\n",
1977 card->name, errcode);
1978 return;
1979 }
1980 avmversion[0] = (version.majormanuversion >> 4) & 0x0f;
1981 avmversion[1] = (version.majormanuversion << 4) & 0xf0;
1982 avmversion[1] |= (version.minormanuversion >> 4) & 0x0f;
1983 avmversion[2] |= version.minormanuversion & 0x0f;
1984
1985 if (avmversion[0] > 3 || (avmversion[0] == 3 && avmversion[1] > 5)) {
1986 printk(KERN_INFO "%s: D2 trace enabled\n", card->name);
1987 capi_fill_MANUFACTURER_REQ(&cmdcmsg, global.ap.applid,
1988 card->msgid++,
1989 contr,
1990 0x214D5641, /* ManuID */
1991 0, /* Class */
1992 1, /* Function */
1993 (_cstruct)"\004\200\014\000\000");
1994 } else {
1995 printk(KERN_INFO "%s: D3 trace enabled\n", card->name);
1996 capi_fill_MANUFACTURER_REQ(&cmdcmsg, global.ap.applid,
1997 card->msgid++,
1998 contr,
1999 0x214D5641, /* ManuID */
2000 0, /* Class */
2001 1, /* Function */
2002 (_cstruct)"\004\002\003\000\000");
2003 }
2004 send_message(card, &cmdcmsg);
2005 }
2006
2007
2008 static void send_listen(capidrv_contr *card)
2009 {
2010 capi_fill_LISTEN_REQ(&cmdcmsg, global.ap.applid,
2011 card->msgid++,
2012 card->contrnr, /* controller */
2013 1 << 6, /* Infomask */
2014 card->cipmask,
2015 card->cipmask2,
2016 NULL, NULL);
2017 send_message(card, &cmdcmsg);
2018 listen_change_state(card, EV_LISTEN_REQ);
2019 }
2020
2021 static void listentimerfunc(unsigned long x)
2022 {
2023 capidrv_contr *card = (capidrv_contr *)x;
2024 if (card->state != ST_LISTEN_NONE && card->state != ST_LISTEN_ACTIVE)
2025 printk(KERN_ERR "%s: controller dead ??\n", card->name);
2026 send_listen(card);
2027 mod_timer(&card->listentimer, jiffies + 60*HZ);
2028 }
2029
2030
2031 static int capidrv_addcontr(u16 contr, struct capi_profile *profp)
2032 {
2033 capidrv_contr *card;
2034 unsigned long flags;
2035 isdn_ctrl cmd;
2036 char id[20];
2037 int i;
2038
2039 sprintf(id, "capidrv-%d", contr);
2040 if (!try_module_get(THIS_MODULE)) {
2041 printk(KERN_WARNING "capidrv: (%s) Could not reserve module\n", id);
2042 return -1;
2043 }
2044 if (!(card = kzalloc(sizeof(capidrv_contr), GFP_ATOMIC))) {
2045 printk(KERN_WARNING
2046 "capidrv: (%s) Could not allocate contr-struct.\n", id);
2047 return -1;
2048 }
2049 card->owner = THIS_MODULE;
2050 init_timer(&card->listentimer);
2051 strcpy(card->name, id);
2052 card->contrnr = contr;
2053 card->nbchan = profp->nbchannel;
2054 card->bchans = kmalloc(sizeof(capidrv_bchan) * card->nbchan, GFP_ATOMIC);
2055 if (!card->bchans) {
2056 printk(KERN_WARNING
2057 "capidrv: (%s) Could not allocate bchan-structs.\n", id);
2058 module_put(card->owner);
2059 kfree(card);
2060 return -1;
2061 }
2062 card->interface.channels = profp->nbchannel;
2063 card->interface.maxbufsize = 2048;
2064 card->interface.command = if_command;
2065 card->interface.writebuf_skb = if_sendbuf;
2066 card->interface.writecmd = NULL;
2067 card->interface.readstat = if_readstat;
2068 card->interface.features = ISDN_FEATURE_L2_HDLC |
2069 ISDN_FEATURE_L2_TRANS |
2070 ISDN_FEATURE_L3_TRANS |
2071 ISDN_FEATURE_P_UNKNOWN |
2072 ISDN_FEATURE_L2_X75I |
2073 ISDN_FEATURE_L2_X75UI |
2074 ISDN_FEATURE_L2_X75BUI;
2075 if (profp->support1 & (1<<2))
2076 card->interface.features |= ISDN_FEATURE_L2_V11096 |
2077 ISDN_FEATURE_L2_V11019 |
2078 ISDN_FEATURE_L2_V11038;
2079 if (profp->support1 & (1<<8))
2080 card->interface.features |= ISDN_FEATURE_L2_MODEM;
2081 card->interface.hl_hdrlen = 22; /* len of DATA_B3_REQ */
2082 strncpy(card->interface.id, id, sizeof(card->interface.id) - 1);
2083
2084
2085 card->q931_read = card->q931_buf;
2086 card->q931_write = card->q931_buf;
2087 card->q931_end = card->q931_buf + sizeof(card->q931_buf) - 1;
2088
2089 if (!register_isdn(&card->interface)) {
2090 printk(KERN_ERR "capidrv: Unable to register contr %s\n", id);
2091 kfree(card->bchans);
2092 module_put(card->owner);
2093 kfree(card);
2094 return -1;
2095 }
2096 card->myid = card->interface.channels;
2097 memset(card->bchans, 0, sizeof(capidrv_bchan) * card->nbchan);
2098 for (i = 0; i < card->nbchan; i++) {
2099 card->bchans[i].contr = card;
2100 }
2101
2102 spin_lock_irqsave(&global_lock, flags);
2103 card->next = global.contr_list;
2104 global.contr_list = card;
2105 global.ncontr++;
2106 spin_unlock_irqrestore(&global_lock, flags);
2107
2108 cmd.command = ISDN_STAT_RUN;
2109 cmd.driver = card->myid;
2110 card->interface.statcallb(&cmd);
2111
2112 card->cipmask = 0x1FFF03FF; /* any */
2113 card->cipmask2 = 0;
2114
2115 card->listentimer.data = (unsigned long)card;
2116 card->listentimer.function = listentimerfunc;
2117 send_listen(card);
2118 mod_timer(&card->listentimer, jiffies + 60*HZ);
2119
2120 printk(KERN_INFO "%s: now up (%d B channels)\n",
2121 card->name, card->nbchan);
2122
2123 enable_dchannel_trace(card);
2124
2125 return 0;
2126 }
2127
2128 static int capidrv_delcontr(u16 contr)
2129 {
2130 capidrv_contr **pp, *card;
2131 unsigned long flags;
2132 isdn_ctrl cmd;
2133
2134 spin_lock_irqsave(&global_lock, flags);
2135 for (card = global.contr_list; card; card = card->next) {
2136 if (card->contrnr == contr)
2137 break;
2138 }
2139 if (!card) {
2140 spin_unlock_irqrestore(&global_lock, flags);
2141 printk(KERN_ERR "capidrv: delcontr: no contr %u\n", contr);
2142 return -1;
2143 }
2144
2145 /* FIXME: maybe a race condition the card should be removed
2146 * here from global list /kkeil
2147 */
2148 spin_unlock_irqrestore(&global_lock, flags);
2149
2150 del_timer(&card->listentimer);
2151
2152 if (debugmode)
2153 printk(KERN_DEBUG "capidrv-%d: id=%d unloading\n",
2154 card->contrnr, card->myid);
2155
2156 cmd.command = ISDN_STAT_STOP;
2157 cmd.driver = card->myid;
2158 card->interface.statcallb(&cmd);
2159
2160 while (card->nbchan) {
2161
2162 cmd.command = ISDN_STAT_DISCH;
2163 cmd.driver = card->myid;
2164 cmd.arg = card->nbchan-1;
2165 cmd.parm.num[0] = 0;
2166 if (debugmode)
2167 printk(KERN_DEBUG "capidrv-%d: id=%d disable chan=%ld\n",
2168 card->contrnr, card->myid, cmd.arg);
2169 card->interface.statcallb(&cmd);
2170
2171 if (card->bchans[card->nbchan-1].nccip)
2172 free_ncci(card, card->bchans[card->nbchan-1].nccip);
2173 if (card->bchans[card->nbchan-1].plcip)
2174 free_plci(card, card->bchans[card->nbchan-1].plcip);
2175 if (card->plci_list)
2176 printk(KERN_ERR "capidrv: bug in free_plci()\n");
2177 card->nbchan--;
2178 }
2179 kfree(card->bchans);
2180 card->bchans = NULL;
2181
2182 if (debugmode)
2183 printk(KERN_DEBUG "capidrv-%d: id=%d isdn unload\n",
2184 card->contrnr, card->myid);
2185
2186 cmd.command = ISDN_STAT_UNLOAD;
2187 cmd.driver = card->myid;
2188 card->interface.statcallb(&cmd);
2189
2190 if (debugmode)
2191 printk(KERN_DEBUG "capidrv-%d: id=%d remove contr from list\n",
2192 card->contrnr, card->myid);
2193
2194 spin_lock_irqsave(&global_lock, flags);
2195 for (pp = &global.contr_list; *pp; pp = &(*pp)->next) {
2196 if (*pp == card) {
2197 *pp = (*pp)->next;
2198 card->next = NULL;
2199 global.ncontr--;
2200 break;
2201 }
2202 }
2203 spin_unlock_irqrestore(&global_lock, flags);
2204
2205 module_put(card->owner);
2206 printk(KERN_INFO "%s: now down.\n", card->name);
2207 kfree(card);
2208 return 0;
2209 }
2210
2211
2212 static void lower_callback(unsigned int cmd, u32 contr, void *data)
2213 {
2214
2215 switch (cmd) {
2216 case KCI_CONTRUP:
2217 printk(KERN_INFO "capidrv: controller %hu up\n", contr);
2218 (void) capidrv_addcontr(contr, (capi_profile *) data);
2219 break;
2220 case KCI_CONTRDOWN:
2221 printk(KERN_INFO "capidrv: controller %hu down\n", contr);
2222 (void) capidrv_delcontr(contr);
2223 break;
2224 }
2225 }
2226
2227 /*
2228 * /proc/capi/capidrv:
2229 * nrecvctlpkt nrecvdatapkt nsendctlpkt nsenddatapkt
2230 */
2231 static int proc_capidrv_read_proc(char *page, char **start, off_t off,
2232 int count, int *eof, void *data)
2233 {
2234 int len = 0;
2235
2236 len += sprintf(page+len, "%lu %lu %lu %lu\n",
2237 global.ap.nrecvctlpkt,
2238 global.ap.nrecvdatapkt,
2239 global.ap.nsentctlpkt,
2240 global.ap.nsentdatapkt);
2241 if (off+count >= len)
2242 *eof = 1;
2243 if (len < off)
2244 return 0;
2245 *start = page + off;
2246 return ((count < len-off) ? count : len-off);
2247 }
2248
2249 static struct procfsentries {
2250 char *name;
2251 mode_t mode;
2252 int (*read_proc)(char *page, char **start, off_t off,
2253 int count, int *eof, void *data);
2254 struct proc_dir_entry *procent;
2255 } procfsentries[] = {
2256 /* { "capi", S_IFDIR, 0 }, */
2257 { "capi/capidrv", 0 , proc_capidrv_read_proc },
2258 };
2259
2260 static void __init proc_init(void)
2261 {
2262 int nelem = ARRAY_SIZE(procfsentries);
2263 int i;
2264
2265 for (i=0; i < nelem; i++) {
2266 struct procfsentries *p = procfsentries + i;
2267 p->procent = create_proc_entry(p->name, p->mode, NULL);
2268 if (p->procent) p->procent->read_proc = p->read_proc;
2269 }
2270 }
2271
2272 static void __exit proc_exit(void)
2273 {
2274 int nelem = ARRAY_SIZE(procfsentries);
2275 int i;
2276
2277 for (i=nelem-1; i >= 0; i--) {
2278 struct procfsentries *p = procfsentries + i;
2279 if (p->procent) {
2280 remove_proc_entry(p->name, NULL);
2281 p->procent = NULL;
2282 }
2283 }
2284 }
2285
2286 static int __init capidrv_init(void)
2287 {
2288 capi_profile profile;
2289 char rev[32];
2290 char *p;
2291 u32 ncontr, contr;
2292 u16 errcode;
2293
2294 if ((p = strchr(revision, ':')) != NULL && p[1]) {
2295 strncpy(rev, p + 2, sizeof(rev));
2296 rev[sizeof(rev)-1] = 0;
2297 if ((p = strchr(rev, '$')) != NULL && p > rev)
2298 *(p-1) = 0;
2299 } else
2300 strcpy(rev, "1.0");
2301
2302 global.ap.rparam.level3cnt = -2; /* number of bchannels twice */
2303 global.ap.rparam.datablkcnt = 16;
2304 global.ap.rparam.datablklen = 2048;
2305
2306 global.ap.recv_message = capidrv_recv_message;
2307 errcode = capi20_register(&global.ap);
2308 if (errcode) {
2309 return -EIO;
2310 }
2311
2312 capi20_set_callback(&global.ap, lower_callback);
2313
2314 errcode = capi20_get_profile(0, &profile);
2315 if (errcode != CAPI_NOERROR) {
2316 capi20_release(&global.ap);
2317 return -EIO;
2318 }
2319
2320 ncontr = profile.ncontroller;
2321 for (contr = 1; contr <= ncontr; contr++) {
2322 errcode = capi20_get_profile(contr, &profile);
2323 if (errcode != CAPI_NOERROR)
2324 continue;
2325 (void) capidrv_addcontr(contr, &profile);
2326 }
2327 proc_init();
2328
2329 printk(KERN_NOTICE "capidrv: Rev %s: loaded\n", rev);
2330 return 0;
2331 }
2332
2333 static void __exit capidrv_exit(void)
2334 {
2335 char rev[32];
2336 char *p;
2337
2338 if ((p = strchr(revision, ':')) != NULL) {
2339 strncpy(rev, p + 1, sizeof(rev));
2340 rev[sizeof(rev)-1] = 0;
2341 if ((p = strchr(rev, '$')) != NULL)
2342 *p = 0;
2343 } else {
2344 strcpy(rev, " ??? ");
2345 }
2346
2347 capi20_release(&global.ap);
2348
2349 proc_exit();
2350
2351 printk(KERN_NOTICE "capidrv: Rev%s: unloaded\n", rev);
2352 }
2353
2354 module_init(capidrv_init);
2355 module_exit(capidrv_exit);
x86 "subsystem" repository