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[PATCH] getting rid of all casts of k[cmz]alloc() calls
[mirror_ubuntu-bionic-kernel.git] / drivers / isdn / capi / capidrv.c
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1da177e4
LT		 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/sched.h>
17#include <linux/slab.h>
18#include <linux/fcntl.h>
19#include <linux/fs.h>
20#include <linux/signal.h>
21#include <linux/mm.h>
22#include <linux/timer.h>
23#include <linux/wait.h>
24#include <linux/skbuff.h>
25#include <linux/isdn.h>
26#include <linux/isdnif.h>
27#include <linux/proc_fs.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
38static char *revision = "$Revision: 1.1.2.2 $";
39static int debugmode = 0;
40
41MODULE_DESCRIPTION("CAPI4Linux: Interface to ISDN4Linux");
42MODULE_AUTHOR("Carsten Paeth");
43MODULE_LICENSE("GPL");
44module_param(debugmode, uint, 0);
45
46/* -------- type definitions ----------------------------------------- */
47
48
49struct capidrv_contr {
50
51 struct capidrv_contr *next;
52 struct module *owner;
53 u32 contrnr;
54 char name[20];
55
56 /*
57 * for isdn4linux
58 */
59 isdn_if interface;
60 int myid;
61
62 /*
63 * LISTEN state
64 */
65 int state;
66 u32 cipmask;
67 u32 cipmask2;
68 struct timer_list listentimer;
69
70 /*
71 * ID of capi message sent
72 */
73 u16 msgid;
74
75 /*
76 * B-Channels
77 */
78 int nbchan;
79 struct capidrv_bchan {
80 struct capidrv_contr *contr;
81 u8 msn[ISDN_MSNLEN];
82 int l2;
83 int l3;
84 u8 num[ISDN_MSNLEN];
85 u8 mynum[ISDN_MSNLEN];
86 int si1;
87 int si2;
88 int incoming;
89 int disconnecting;
90 struct capidrv_plci {
91 struct capidrv_plci *next;
92 u32 plci;
93 u32 ncci; /* ncci for CONNECT_ACTIVE_IND */
94 u16 msgid; /* to identfy CONNECT_CONF */
95 int chan;
96 int state;
97 int leasedline;
98 struct capidrv_ncci {
99 struct capidrv_ncci *next;
100 struct capidrv_plci *plcip;
101 u32 ncci;
102 u16 msgid; /* to identfy CONNECT_B3_CONF */
103 int chan;
104 int state;
105 int oldstate;
106 /* */
107 u16 datahandle;
108 struct ncci_datahandle_queue {
109 struct ncci_datahandle_queue *next;
110 u16 datahandle;
111 int len;
112 } *ackqueue;
113 } *ncci_list;
114 } *plcip;
115 struct capidrv_ncci *nccip;
116 } *bchans;
117
118 struct capidrv_plci *plci_list;
119
120 /* for q931 data */
121 u8 q931_buf[4096];
122 u8 *q931_read;
123 u8 *q931_write;
124 u8 *q931_end;
125};
126
127
128struct capidrv_data {
129 struct capi20_appl ap;
130 int ncontr;
131 struct capidrv_contr *contr_list;
132};
133
134typedef struct capidrv_plci capidrv_plci;
135typedef struct capidrv_ncci capidrv_ncci;
136typedef struct capidrv_contr capidrv_contr;
137typedef struct capidrv_data capidrv_data;
138typedef struct capidrv_bchan capidrv_bchan;
139
140/* -------- data definitions ----------------------------------------- */
141
142static capidrv_data global;
143static DEFINE_SPINLOCK(global_lock);
144
145static void handle_dtrace_data(capidrv_contr *card,
146 int send, int level2, u8 *data, u16 len);
147
148/* -------- convert functions ---------------------------------------- */
149
150static inline u32 b1prot(int l2, int l3)
151{
152 switch (l2) {
153 case ISDN_PROTO_L2_X75I:
154 case ISDN_PROTO_L2_X75UI:
155 case ISDN_PROTO_L2_X75BUI:
156 return 0;
157 case ISDN_PROTO_L2_HDLC:
158 default:
159 return 0;
160 case ISDN_PROTO_L2_TRANS:
161 return 1;
162 case ISDN_PROTO_L2_V11096:
163 case ISDN_PROTO_L2_V11019:
164 case ISDN_PROTO_L2_V11038:
165 return 2;
166 case ISDN_PROTO_L2_FAX:
167 return 4;
168 case ISDN_PROTO_L2_MODEM:
169 return 8;
170 }
171}
172
173static inline u32 b2prot(int l2, int l3)
174{
175 switch (l2) {
176 case ISDN_PROTO_L2_X75I:
177 case ISDN_PROTO_L2_X75UI:
178 case ISDN_PROTO_L2_X75BUI:
179 default:
180 return 0;
181 case ISDN_PROTO_L2_HDLC:
182 case ISDN_PROTO_L2_TRANS:
183 case ISDN_PROTO_L2_V11096:
184 case ISDN_PROTO_L2_V11019:
185 case ISDN_PROTO_L2_V11038:
186 case ISDN_PROTO_L2_MODEM:
187 return 1;
188 case ISDN_PROTO_L2_FAX:
189 return 4;
190 }
191}
192
193static inline u32 b3prot(int l2, int l3)
194{
195 switch (l2) {
196 case ISDN_PROTO_L2_X75I:
197 case ISDN_PROTO_L2_X75UI:
198 case ISDN_PROTO_L2_X75BUI:
199 case ISDN_PROTO_L2_HDLC:
200 case ISDN_PROTO_L2_TRANS:
201 case ISDN_PROTO_L2_V11096:
202 case ISDN_PROTO_L2_V11019:
203 case ISDN_PROTO_L2_V11038:
204 case ISDN_PROTO_L2_MODEM:
205 default:
206 return 0;
207 case ISDN_PROTO_L2_FAX:
208 return 4;
209 }
210}
211
212static _cstruct b1config_async_v110(u16 rate)
213{
214 /* CAPI-Spec "B1 Configuration" */
215 static unsigned char buf[9];
216 buf[0] = 8; /* len */
217 /* maximum bitrate */
218 buf[1] = rate & 0xff; buf[2] = (rate >> 8) & 0xff;
219 buf[3] = 8; buf[4] = 0; /* 8 bits per character */
220 buf[5] = 0; buf[6] = 0; /* parity none */
221 buf[7] = 0; buf[8] = 0; /* 1 stop bit */
222 return buf;
223}
224
225static _cstruct b1config(int l2, int l3)
226{
227 switch (l2) {
228 case ISDN_PROTO_L2_X75I:
229 case ISDN_PROTO_L2_X75UI:
230 case ISDN_PROTO_L2_X75BUI:
231 case ISDN_PROTO_L2_HDLC:
232 case ISDN_PROTO_L2_TRANS:
233 default:
234 return NULL;
235 case ISDN_PROTO_L2_V11096:
236 return b1config_async_v110(9600);
237 case ISDN_PROTO_L2_V11019:
238 return b1config_async_v110(19200);
239 case ISDN_PROTO_L2_V11038:
240 return b1config_async_v110(38400);
241 }
242}
243
244static inline u16 si2cip(u8 si1, u8 si2)
245{
246 static const u8 cip[17][5] =
247 {
248 /* 0 1 2 3 4 */
249 {0, 0, 0, 0, 0}, /*0 */
250 {16, 16, 4, 26, 16}, /*1 */
251 {17, 17, 17, 4, 4}, /*2 */
252 {2, 2, 2, 2, 2}, /*3 */
253 {18, 18, 18, 18, 18}, /*4 */
254 {2, 2, 2, 2, 2}, /*5 */
255 {0, 0, 0, 0, 0}, /*6 */
256 {2, 2, 2, 2, 2}, /*7 */
257 {2, 2, 2, 2, 2}, /*8 */
258 {21, 21, 21, 21, 21}, /*9 */
259 {19, 19, 19, 19, 19}, /*10 */
260 {0, 0, 0, 0, 0}, /*11 */
261 {0, 0, 0, 0, 0}, /*12 */
262 {0, 0, 0, 0, 0}, /*13 */
263 {0, 0, 0, 0, 0}, /*14 */
264 {22, 22, 22, 22, 22}, /*15 */
265 {27, 27, 27, 28, 27} /*16 */
266 };
267 if (si1 > 16)
268 si1 = 0;
269 if (si2 > 4)
270 si2 = 0;
271
272 return (u16) cip[si1][si2];
273}
274
275static inline u8 cip2si1(u16 cipval)
276{
277 static const u8 si[32] =
278 {7, 1, 7, 7, 1, 1, 7, 7, /*0-7 */
279 7, 1, 0, 0, 0, 0, 0, 0, /*8-15 */
280 1, 2, 4, 10, 9, 9, 15, 7, /*16-23 */
281 7, 7, 1, 16, 16, 0, 0, 0}; /*24-31 */
282
283 if (cipval > 31)
284 cipval = 0; /* .... */
285 return si[cipval];
286}
287
288static inline u8 cip2si2(u16 cipval)
289{
290 static const u8 si[32] =
291 {0, 0, 0, 0, 2, 3, 0, 0, /*0-7 */
292 0, 3, 0, 0, 0, 0, 0, 0, /*8-15 */
293 1, 2, 0, 0, 9, 0, 0, 0, /*16-23 */
294 0, 0, 3, 2, 3, 0, 0, 0}; /*24-31 */
295
296 if (cipval > 31)
297 cipval = 0; /* .... */
298 return si[cipval];
299}
300
301
302/* -------- controller management ------------------------------------- */
303
304static inline capidrv_contr *findcontrbydriverid(int driverid)
305{
306 unsigned long flags;
307 capidrv_contr *p;
308
309 spin_lock_irqsave(&global_lock, flags);
310 for (p = global.contr_list; p; p = p->next)
311 if (p->myid == driverid)
312 break;
313 spin_unlock_irqrestore(&global_lock, flags);
314 return p;
315}
316
317static capidrv_contr *findcontrbynumber(u32 contr)
318{
319 unsigned long flags;
320 capidrv_contr *p = global.contr_list;
321
322 spin_lock_irqsave(&global_lock, flags);
323 for (p = global.contr_list; p; p = p->next)
324 if (p->contrnr == contr)
325 break;
326 spin_unlock_irqrestore(&global_lock, flags);
327 return p;
328}
329
330
331/* -------- plci management ------------------------------------------ */
332
333static capidrv_plci *new_plci(capidrv_contr * card, int chan)
334{
335 capidrv_plci *plcip;
336
41f96935 337 plcip = kzalloc(sizeof(capidrv_plci), GFP_ATOMIC);
1da177e4
LT		 338
339 if (plcip == 0)
340 return NULL;
341
1da177e4
LT		 342 plcip->state = ST_PLCI_NONE;
343 plcip->plci = 0;
344 plcip->msgid = 0;
345 plcip->chan = chan;
346 plcip->next = card->plci_list;
347 card->plci_list = plcip;
348 card->bchans[chan].plcip = plcip;
349
350 return plcip;
351}
352
353static capidrv_plci *find_plci_by_plci(capidrv_contr * card, u32 plci)
354{
355 capidrv_plci *p;
356 for (p = card->plci_list; p; p = p->next)
357 if (p->plci == plci)
358 return p;
359 return NULL;
360}
361
362static capidrv_plci *find_plci_by_msgid(capidrv_contr * card, u16 msgid)
363{
364 capidrv_plci *p;
365 for (p = card->plci_list; p; p = p->next)
366 if (p->msgid == msgid)
367 return p;
368 return NULL;
369}
370
371static capidrv_plci *find_plci_by_ncci(capidrv_contr * card, u32 ncci)
372{
373 capidrv_plci *p;
374 for (p = card->plci_list; p; p = p->next)
375 if (p->plci == (ncci & 0xffff))
376 return p;
377 return NULL;
378}
379
380static void free_plci(capidrv_contr * card, capidrv_plci * plcip)
381{
382 capidrv_plci **pp;
383
384 for (pp = &card->plci_list; *pp; pp = &(*pp)->next) {
385 if (*pp == plcip) {
386 *pp = (*pp)->next;
387 card->bchans[plcip->chan].plcip = NULL;
388 card->bchans[plcip->chan].disconnecting = 0;
389 card->bchans[plcip->chan].incoming = 0;
390 kfree(plcip);
391 return;
392 }
393 }
394 printk(KERN_ERR "capidrv-%d: free_plci %p (0x%x) not found, Huh?\n",
395 card->contrnr, plcip, plcip->plci);
396}
397
398/* -------- ncci management ------------------------------------------ */
399
400static inline capidrv_ncci *new_ncci(capidrv_contr * card,
401 capidrv_plci * plcip,
402 u32 ncci)
403{
404 capidrv_ncci *nccip;
405
41f96935 406 nccip = kzalloc(sizeof(capidrv_ncci), GFP_ATOMIC);
1da177e4
LT		 407
408 if (nccip == 0)
409 return NULL;
410
1da177e4
LT		 411 nccip->ncci = ncci;
412 nccip->state = ST_NCCI_NONE;
413 nccip->plcip = plcip;
414 nccip->chan = plcip->chan;
415 nccip->datahandle = 0;
416
417 nccip->next = plcip->ncci_list;
418 plcip->ncci_list = nccip;
419
420 card->bchans[plcip->chan].nccip = nccip;
421
422 return nccip;
423}
424
425static inline capidrv_ncci *find_ncci(capidrv_contr * card, u32 ncci)
426{
427 capidrv_plci *plcip;
428 capidrv_ncci *p;
429
430 if ((plcip = find_plci_by_ncci(card, ncci)) == 0)
431 return NULL;
432
433 for (p = plcip->ncci_list; p; p = p->next)
434 if (p->ncci == ncci)
435 return p;
436 return NULL;
437}
438
439static inline capidrv_ncci *find_ncci_by_msgid(capidrv_contr * card,
440 u32 ncci, u16 msgid)
441{
442 capidrv_plci *plcip;
443 capidrv_ncci *p;
444
445 if ((plcip = find_plci_by_ncci(card, ncci)) == 0)
446 return NULL;
447
448 for (p = plcip->ncci_list; p; p = p->next)
449 if (p->msgid == msgid)
450 return p;
451 return NULL;
452}
453
454static void free_ncci(capidrv_contr * card, struct capidrv_ncci *nccip)
455{
456 struct capidrv_ncci **pp;
457
458 for (pp = &(nccip->plcip->ncci_list); *pp; pp = &(*pp)->next) {
459 if (*pp == nccip) {
460 *pp = (*pp)->next;
461 break;
462 }
463 }
464 card->bchans[nccip->chan].nccip = NULL;
465 kfree(nccip);
466}
467
468static int capidrv_add_ack(struct capidrv_ncci *nccip,
469 u16 datahandle, int len)
470{
471 struct ncci_datahandle_queue *n, **pp;
472
473 n = (struct ncci_datahandle_queue *)
474 kmalloc(sizeof(struct ncci_datahandle_queue), GFP_ATOMIC);
475 if (!n) {
476 printk(KERN_ERR "capidrv: kmalloc ncci_datahandle failed\n");
477 return -1;
478 }
479 n->next = NULL;
480 n->datahandle = datahandle;
481 n->len = len;
482 for (pp = &nccip->ackqueue; *pp; pp = &(*pp)->next) ;
483 *pp = n;
484 return 0;
485}
486
487static int capidrv_del_ack(struct capidrv_ncci *nccip, u16 datahandle)
488{
489 struct ncci_datahandle_queue **pp, *p;
490 int len;
491
492 for (pp = &nccip->ackqueue; *pp; pp = &(*pp)->next) {
493 if ((*pp)->datahandle == datahandle) {
494 p = *pp;
495 len = p->len;
496 *pp = (*pp)->next;
497 kfree(p);
498 return len;
499 }
500 }
501 return -1;
502}
503
504/* -------- convert and send capi message ---------------------------- */
505
506static void send_message(capidrv_contr * card, _cmsg * cmsg)
507{
508 struct sk_buff *skb;
509 size_t len;
510 capi_cmsg2message(cmsg, cmsg->buf);
511 len = CAPIMSG_LEN(cmsg->buf);
512 skb = alloc_skb(len, GFP_ATOMIC);
513 memcpy(skb_put(skb, len), cmsg->buf, len);
514 if (capi20_put_message(&global.ap, skb) != CAPI_NOERROR)
515 kfree_skb(skb);
516}
517
518/* -------- state machine -------------------------------------------- */
519
520struct listenstatechange {
521 int actstate;
522 int nextstate;
523 int event;
524};
525
526static struct listenstatechange listentable[] =
527{
528 {ST_LISTEN_NONE, ST_LISTEN_WAIT_CONF, EV_LISTEN_REQ},
529 {ST_LISTEN_ACTIVE, ST_LISTEN_ACTIVE_WAIT_CONF, EV_LISTEN_REQ},
530 {ST_LISTEN_WAIT_CONF, ST_LISTEN_NONE, EV_LISTEN_CONF_ERROR},
531 {ST_LISTEN_ACTIVE_WAIT_CONF, ST_LISTEN_ACTIVE, EV_LISTEN_CONF_ERROR},
532 {ST_LISTEN_WAIT_CONF, ST_LISTEN_NONE, EV_LISTEN_CONF_EMPTY},
533 {ST_LISTEN_ACTIVE_WAIT_CONF, ST_LISTEN_NONE, EV_LISTEN_CONF_EMPTY},
534 {ST_LISTEN_WAIT_CONF, ST_LISTEN_ACTIVE, EV_LISTEN_CONF_OK},
535 {ST_LISTEN_ACTIVE_WAIT_CONF, ST_LISTEN_ACTIVE, EV_LISTEN_CONF_OK},
536 {},
537};
538
539static void listen_change_state(capidrv_contr * card, int event)
540{
541 struct listenstatechange *p = listentable;
542 while (p->event) {
543 if (card->state == p->actstate && p->event == event) {
544 if (debugmode)
545 printk(KERN_DEBUG "capidrv-%d: listen_change_state %d -> %d\n",
546 card->contrnr, card->state, p->nextstate);
547 card->state = p->nextstate;
548 return;
549 }
550 p++;
551 }
552 printk(KERN_ERR "capidrv-%d: listen_change_state state=%d event=%d ????\n",
553 card->contrnr, card->state, event);
554
555}
556
557/* ------------------------------------------------------------------ */
558
559static void p0(capidrv_contr * card, capidrv_plci * plci)
560{
561 isdn_ctrl cmd;
562
563 card->bchans[plci->chan].contr = NULL;
564 cmd.command = ISDN_STAT_DHUP;
565 cmd.driver = card->myid;
566 cmd.arg = plci->chan;
567 card->interface.statcallb(&cmd);
568 free_plci(card, plci);
569}
570
571/* ------------------------------------------------------------------ */
572
573struct plcistatechange {
574 int actstate;
575 int nextstate;
576 int event;
577 void (*changefunc) (capidrv_contr * card, capidrv_plci * plci);
578};
579
580static struct plcistatechange plcitable[] =
581{
582 /* P-0 */
583 {ST_PLCI_NONE, ST_PLCI_OUTGOING, EV_PLCI_CONNECT_REQ, NULL},
584 {ST_PLCI_NONE, ST_PLCI_ALLOCATED, EV_PLCI_FACILITY_IND_UP, NULL},
585 {ST_PLCI_NONE, ST_PLCI_INCOMING, EV_PLCI_CONNECT_IND, NULL},
586 {ST_PLCI_NONE, ST_PLCI_RESUMEING, EV_PLCI_RESUME_REQ, NULL},
587 /* P-0.1 */
588 {ST_PLCI_OUTGOING, ST_PLCI_NONE, EV_PLCI_CONNECT_CONF_ERROR, p0},
589 {ST_PLCI_OUTGOING, ST_PLCI_ALLOCATED, EV_PLCI_CONNECT_CONF_OK, NULL},
590 /* P-1 */
591 {ST_PLCI_ALLOCATED, ST_PLCI_ACTIVE, EV_PLCI_CONNECT_ACTIVE_IND, NULL},
592 {ST_PLCI_ALLOCATED, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
593 {ST_PLCI_ALLOCATED, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
594 {ST_PLCI_ALLOCATED, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
595 /* P-ACT */
596 {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
597 {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
598 {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
599 {ST_PLCI_ACTIVE, ST_PLCI_HELD, EV_PLCI_HOLD_IND, NULL},
600 {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTING, EV_PLCI_SUSPEND_IND, NULL},
601 /* P-2 */
602 {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_CONNECT_REJECT, NULL},
603 {ST_PLCI_INCOMING, ST_PLCI_FACILITY_IND, EV_PLCI_FACILITY_IND_UP, NULL},
604 {ST_PLCI_INCOMING, ST_PLCI_ACCEPTING, EV_PLCI_CONNECT_RESP, NULL},
605 {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
606 {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
607 {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
608 {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_CD_IND, NULL},
609 /* P-3 */
610 {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTING, EV_PLCI_CONNECT_REJECT, NULL},
611 {ST_PLCI_FACILITY_IND, ST_PLCI_ACCEPTING, EV_PLCI_CONNECT_ACTIVE_IND, NULL},
612 {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
613 {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
614 {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
615 /* P-4 */
616 {ST_PLCI_ACCEPTING, ST_PLCI_ACTIVE, EV_PLCI_CONNECT_ACTIVE_IND, NULL},
617 {ST_PLCI_ACCEPTING, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
618 {ST_PLCI_ACCEPTING, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
619 {ST_PLCI_ACCEPTING, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
620 /* P-5 */
621 {ST_PLCI_DISCONNECTING, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
622 /* P-6 */
623 {ST_PLCI_DISCONNECTED, ST_PLCI_NONE, EV_PLCI_DISCONNECT_RESP, p0},
624 /* P-0.Res */
625 {ST_PLCI_RESUMEING, ST_PLCI_NONE, EV_PLCI_RESUME_CONF_ERROR, p0},
626 {ST_PLCI_RESUMEING, ST_PLCI_RESUME, EV_PLCI_RESUME_CONF_OK, NULL},
627 /* P-RES */
628 {ST_PLCI_RESUME, ST_PLCI_ACTIVE, EV_PLCI_RESUME_IND, NULL},
629 /* P-HELD */
630 {ST_PLCI_HELD, ST_PLCI_ACTIVE, EV_PLCI_RETRIEVE_IND, NULL},
631 {},
632};
633
634static void plci_change_state(capidrv_contr * card, capidrv_plci * plci, int event)
635{
636 struct plcistatechange *p = plcitable;
637 while (p->event) {
638 if (plci->state == p->actstate && p->event == event) {
639 if (debugmode)
640 printk(KERN_DEBUG "capidrv-%d: plci_change_state:0x%x %d -> %d\n",
641 card->contrnr, plci->plci, plci->state, p->nextstate);
642 plci->state = p->nextstate;
643 if (p->changefunc)
644 p->changefunc(card, plci);
645 return;
646 }
647 p++;
648 }
649 printk(KERN_ERR "capidrv-%d: plci_change_state:0x%x state=%d event=%d ????\n",
650 card->contrnr, plci->plci, plci->state, event);
651}
652
653/* ------------------------------------------------------------------ */
654
655static _cmsg cmsg;
656
657static void n0(capidrv_contr * card, capidrv_ncci * ncci)
658{
659 isdn_ctrl cmd;
660
661 capi_fill_DISCONNECT_REQ(&cmsg,
662 global.ap.applid,
663 card->msgid++,
664 ncci->plcip->plci,
665 NULL, /* BChannelinformation */
666 NULL, /* Keypadfacility */
667 NULL, /* Useruserdata */ /* $$$$ */
668 NULL /* Facilitydataarray */
669 );
670 send_message(card, &cmsg);
671 plci_change_state(card, ncci->plcip, EV_PLCI_DISCONNECT_REQ);
672
673 cmd.command = ISDN_STAT_BHUP;
674 cmd.driver = card->myid;
675 cmd.arg = ncci->chan;
676 card->interface.statcallb(&cmd);
677 free_ncci(card, ncci);
678}
679
680/* ------------------------------------------------------------------ */
681
682struct nccistatechange {
683 int actstate;
684 int nextstate;
685 int event;
686 void (*changefunc) (capidrv_contr * card, capidrv_ncci * ncci);
687};
688
689static struct nccistatechange nccitable[] =
690{
691 /* N-0 */
692 {ST_NCCI_NONE, ST_NCCI_OUTGOING, EV_NCCI_CONNECT_B3_REQ, NULL},
693 {ST_NCCI_NONE, ST_NCCI_INCOMING, EV_NCCI_CONNECT_B3_IND, NULL},
694 /* N-0.1 */
695 {ST_NCCI_OUTGOING, ST_NCCI_ALLOCATED, EV_NCCI_CONNECT_B3_CONF_OK, NULL},
696 {ST_NCCI_OUTGOING, ST_NCCI_NONE, EV_NCCI_CONNECT_B3_CONF_ERROR, n0},
697 /* N-1 */
698 {ST_NCCI_INCOMING, ST_NCCI_DISCONNECTING, EV_NCCI_CONNECT_B3_REJECT, NULL},
699 {ST_NCCI_INCOMING, ST_NCCI_ALLOCATED, EV_NCCI_CONNECT_B3_RESP, NULL},
700 {ST_NCCI_INCOMING, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
701 {ST_NCCI_INCOMING, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL},
702 /* N-2 */
703 {ST_NCCI_ALLOCATED, ST_NCCI_ACTIVE, EV_NCCI_CONNECT_B3_ACTIVE_IND, NULL},
704 {ST_NCCI_ALLOCATED, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
705 {ST_NCCI_ALLOCATED, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL},
706 /* N-ACT */
707 {ST_NCCI_ACTIVE, ST_NCCI_ACTIVE, EV_NCCI_RESET_B3_IND, NULL},
708 {ST_NCCI_ACTIVE, ST_NCCI_RESETING, EV_NCCI_RESET_B3_REQ, NULL},
709 {ST_NCCI_ACTIVE, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
710 {ST_NCCI_ACTIVE, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL},
711 /* N-3 */
712 {ST_NCCI_RESETING, ST_NCCI_ACTIVE, EV_NCCI_RESET_B3_IND, NULL},
713 {ST_NCCI_RESETING, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
714 {ST_NCCI_RESETING, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL},
715 /* N-4 */
716 {ST_NCCI_DISCONNECTING, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
717 {ST_NCCI_DISCONNECTING, ST_NCCI_PREVIOUS, EV_NCCI_DISCONNECT_B3_CONF_ERROR,NULL},
718 /* N-5 */
719 {ST_NCCI_DISCONNECTED, ST_NCCI_NONE, EV_NCCI_DISCONNECT_B3_RESP, n0},
720 {},
721};
722
723static void ncci_change_state(capidrv_contr * card, capidrv_ncci * ncci, int event)
724{
725 struct nccistatechange *p = nccitable;
726 while (p->event) {
727 if (ncci->state == p->actstate && p->event == event) {
728 if (debugmode)
729 printk(KERN_DEBUG "capidrv-%d: ncci_change_state:0x%x %d -> %d\n",
730 card->contrnr, ncci->ncci, ncci->state, p->nextstate);
731 if (p->nextstate == ST_NCCI_PREVIOUS) {
732 ncci->state = ncci->oldstate;
733 ncci->oldstate = p->actstate;
734 } else {
735 ncci->oldstate = p->actstate;
736 ncci->state = p->nextstate;
737 }
738 if (p->changefunc)
739 p->changefunc(card, ncci);
740 return;
741 }
742 p++;
743 }
744 printk(KERN_ERR "capidrv-%d: ncci_change_state:0x%x state=%d event=%d ????\n",
745 card->contrnr, ncci->ncci, ncci->state, event);
746}
747
748/* ------------------------------------------------------------------- */
749
750static inline int new_bchan(capidrv_contr * card)
751{
752 int i;
753 for (i = 0; i < card->nbchan; i++) {
754 if (card->bchans[i].plcip == 0) {
755 card->bchans[i].disconnecting = 0;
756 return i;
757 }
758 }
759 return -1;
760}
761
762/* ------------------------------------------------------------------- */
763
764static void handle_controller(_cmsg * cmsg)
765{
766 capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f);
767
768 if (!card) {
769 printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n",
770 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
771 cmsg->adr.adrController & 0x7f);
772 return;
773 }
774 switch (CAPICMD(cmsg->Command, cmsg->Subcommand)) {
775
776 case CAPI_LISTEN_CONF: /* Controller */
777 if (debugmode)
778 printk(KERN_DEBUG "capidrv-%d: listenconf Info=0x%4x (%s) cipmask=0x%x\n",
779 card->contrnr, cmsg->Info, capi_info2str(cmsg->Info), card->cipmask);
780 if (cmsg->Info) {
781 listen_change_state(card, EV_LISTEN_CONF_ERROR);
782 } else if (card->cipmask == 0) {
783 listen_change_state(card, EV_LISTEN_CONF_EMPTY);
784 } else {
785 listen_change_state(card, EV_LISTEN_CONF_OK);
786 }
787 break;
788
789 case CAPI_MANUFACTURER_IND: /* Controller */
790 if ( cmsg->ManuID == 0x214D5641
791 && cmsg->Class == 0
792 && cmsg->Function == 1) {
793 u8 *data = cmsg->ManuData+3;
794 u16 len = cmsg->ManuData[0];
795 u16 layer;
796 int direction;
797 if (len == 255) {
798 len = (cmsg->ManuData[1] | (cmsg->ManuData[2] << 8));
799 data += 2;
800 }
801 len -= 2;
802 layer = ((*(data-1)) << 8) | *(data-2);
803 if (layer & 0x300)
804 direction = (layer & 0x200) ? 0 : 1;
805 else direction = (layer & 0x800) ? 0 : 1;
806 if (layer & 0x0C00) {
807 if ((layer & 0xff) == 0x80) {
808 handle_dtrace_data(card, direction, 1, data, len);
809 break;
810 }
811 } else if ((layer & 0xff) < 0x80) {
812 handle_dtrace_data(card, direction, 0, data, len);
813 break;
814 }
815 printk(KERN_INFO "capidrv-%d: %s from controller 0x%x layer 0x%x, ignored\n",
816 card->contrnr,
817 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
818 cmsg->adr.adrController, layer);
819 break;
820 }
821 goto ignored;
822 case CAPI_MANUFACTURER_CONF: /* Controller */
823 if (cmsg->ManuID == 0x214D5641) {
824 char *s = NULL;
825 switch (cmsg->Class) {
826 case 0: break;
827 case 1: s = "unknown class"; break;
828 case 2: s = "unknown function"; break;
829 default: s = "unkown error"; break;
830 }
831 if (s)
832 printk(KERN_INFO "capidrv-%d: %s from controller 0x%x function %d: %s\n",
833 card->contrnr,
834 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
835 cmsg->adr.adrController,
836 cmsg->Function, s);
837 break;
838 }
839 goto ignored;
840 case CAPI_FACILITY_IND: /* Controller/plci/ncci */
841 goto ignored;
842 case CAPI_FACILITY_CONF: /* Controller/plci/ncci */
843 goto ignored;
844 case CAPI_INFO_IND: /* Controller/plci */
845 goto ignored;
846 case CAPI_INFO_CONF: /* Controller/plci */
847 goto ignored;
848
849 default:
850 printk(KERN_ERR "capidrv-%d: got %s from controller 0x%x ???",
851 card->contrnr,
852 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
853 cmsg->adr.adrController);
854 }
855 return;
856
857 ignored:
858 printk(KERN_INFO "capidrv-%d: %s from controller 0x%x ignored\n",
859 card->contrnr,
860 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
861 cmsg->adr.adrController);
862}
863
864static void handle_incoming_call(capidrv_contr * card, _cmsg * cmsg)
865{
866 capidrv_plci *plcip;
867 capidrv_bchan *bchan;
868 isdn_ctrl cmd;
869 int chan;
870
871 if ((chan = new_bchan(card)) == -1) {
872 printk(KERN_ERR "capidrv-%d: incoming call on not existing bchan ?\n", card->contrnr);
873 return;
874 }
875 bchan = &card->bchans[chan];
876 if ((plcip = new_plci(card, chan)) == 0) {
877 printk(KERN_ERR "capidrv-%d: incoming call: no memory, sorry.\n", card->contrnr);
878 return;
879 }
880 bchan->incoming = 1;
881 plcip->plci = cmsg->adr.adrPLCI;
882 plci_change_state(card, plcip, EV_PLCI_CONNECT_IND);
883
884 cmd.command = ISDN_STAT_ICALL;
885 cmd.driver = card->myid;
886 cmd.arg = chan;
887 memset(&cmd.parm.setup, 0, sizeof(cmd.parm.setup));
888 strncpy(cmd.parm.setup.phone,
889 cmsg->CallingPartyNumber + 3,
890 cmsg->CallingPartyNumber[0] - 2);
891 strncpy(cmd.parm.setup.eazmsn,
892 cmsg->CalledPartyNumber + 2,
893 cmsg->CalledPartyNumber[0] - 1);
894 cmd.parm.setup.si1 = cip2si1(cmsg->CIPValue);
895 cmd.parm.setup.si2 = cip2si2(cmsg->CIPValue);
896 cmd.parm.setup.plan = cmsg->CallingPartyNumber[1];
897 cmd.parm.setup.screen = cmsg->CallingPartyNumber[2];
898
899 printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s\n",
900 card->contrnr,
901 cmd.parm.setup.phone,
902 cmd.parm.setup.si1,
903 cmd.parm.setup.si2,
904 cmd.parm.setup.eazmsn);
905
906 if (cmd.parm.setup.si1 == 1 && cmd.parm.setup.si2 != 0) {
907 printk(KERN_INFO "capidrv-%d: patching si2=%d to 0 for VBOX\n",
908 card->contrnr,
909 cmd.parm.setup.si2);
910 cmd.parm.setup.si2 = 0;
911 }
912
913 switch (card->interface.statcallb(&cmd)) {
914 case 0:
915 case 3:
916 /* No device matching this call.
917 * and isdn_common.c has send a HANGUP command
918 * which is ignored in state ST_PLCI_INCOMING,
919 * so we send RESP to ignore the call
920 */
921 capi_cmsg_answer(cmsg);
922 cmsg->Reject = 1; /* ignore */
923 send_message(card, cmsg);
924 plci_change_state(card, plcip, EV_PLCI_CONNECT_REJECT);
925 printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s ignored\n",
926 card->contrnr,
927 cmd.parm.setup.phone,
928 cmd.parm.setup.si1,
929 cmd.parm.setup.si2,
930 cmd.parm.setup.eazmsn);
931 break;
932 case 1:
933 /* At least one device matching this call (RING on ttyI)
934 * HL-driver may send ALERTING on the D-channel in this
935 * case.
936 * really means: RING on ttyI or a net interface
937 * accepted this call already.
938 *
939 * If the call was accepted, state has already changed,
940 * and CONNECT_RESP already sent.
941 */
942 if (plcip->state == ST_PLCI_INCOMING) {
943 printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s tty alerting\n",
944 card->contrnr,
945 cmd.parm.setup.phone,
946 cmd.parm.setup.si1,
947 cmd.parm.setup.si2,
948 cmd.parm.setup.eazmsn);
949 capi_fill_ALERT_REQ(cmsg,
950 global.ap.applid,
951 card->msgid++,
952 plcip->plci, /* adr */
953 NULL,/* BChannelinformation */
954 NULL,/* Keypadfacility */
955 NULL,/* Useruserdata */
956 NULL /* Facilitydataarray */
957 );
958 plcip->msgid = cmsg->Messagenumber;
959 send_message(card, cmsg);
960 } else {
961 printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s on netdev\n",
962 card->contrnr,
963 cmd.parm.setup.phone,
964 cmd.parm.setup.si1,
965 cmd.parm.setup.si2,
966 cmd.parm.setup.eazmsn);
967 }
968 break;
969
970 case 2: /* Call will be rejected. */
971 capi_cmsg_answer(cmsg);
972 cmsg->Reject = 2; /* reject call, normal call clearing */
973 send_message(card, cmsg);
974 plci_change_state(card, plcip, EV_PLCI_CONNECT_REJECT);
975 break;
976
977 default:
978 /* An error happened. (Invalid parameters for example.) */
979 capi_cmsg_answer(cmsg);
980 cmsg->Reject = 8; /* reject call,
981 destination out of order */
982 send_message(card, cmsg);
983 plci_change_state(card, plcip, EV_PLCI_CONNECT_REJECT);
984 break;
985 }
986 return;
987}
988
989static void handle_plci(_cmsg * cmsg)
990{
991 capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f);
992 capidrv_plci *plcip;
993 isdn_ctrl cmd;
994
995 if (!card) {
996 printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n",
997 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
998 cmsg->adr.adrController & 0x7f);
999 return;
1000 }
1001 switch (CAPICMD(cmsg->Command, cmsg->Subcommand)) {
1002
1003 case CAPI_DISCONNECT_IND: /* plci */
1004 if (cmsg->Reason) {
1005 printk(KERN_INFO "capidrv-%d: %s reason 0x%x (%s) for plci 0x%x\n",
1006 card->contrnr,
1007 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1008 cmsg->Reason, capi_info2str(cmsg->Reason), cmsg->adr.adrPLCI);
1009 }
1010 if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI))) {
1011 capi_cmsg_answer(cmsg);
1012 send_message(card, cmsg);
1013 goto notfound;
1014 }
1015 card->bchans[plcip->chan].disconnecting = 1;
1016 plci_change_state(card, plcip, EV_PLCI_DISCONNECT_IND);
1017 capi_cmsg_answer(cmsg);
1018 send_message(card, cmsg);
1019 plci_change_state(card, plcip, EV_PLCI_DISCONNECT_RESP);
1020 break;
1021
1022 case CAPI_DISCONNECT_CONF: /* plci */
1023 if (cmsg->Info) {
1024 printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for plci 0x%x\n",
1025 card->contrnr,
1026 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1027 cmsg->Info, capi_info2str(cmsg->Info),
1028 cmsg->adr.adrPLCI);
1029 }
1030 if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI)))
1031 goto notfound;
1032
1033 card->bchans[plcip->chan].disconnecting = 1;
1034 break;
1035
1036 case CAPI_ALERT_CONF: /* plci */
1037 if (cmsg->Info) {
1038 printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for plci 0x%x\n",
1039 card->contrnr,
1040 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1041 cmsg->Info, capi_info2str(cmsg->Info),
1042 cmsg->adr.adrPLCI);
1043 }
1044 break;
1045
1046 case CAPI_CONNECT_IND: /* plci */
1047 handle_incoming_call(card, cmsg);
1048 break;
1049
1050 case CAPI_CONNECT_CONF: /* plci */
1051 if (cmsg->Info) {
1052 printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for plci 0x%x\n",
1053 card->contrnr,
1054 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1055 cmsg->Info, capi_info2str(cmsg->Info),
1056 cmsg->adr.adrPLCI);
1057 }
1058 if (!(plcip = find_plci_by_msgid(card, cmsg->Messagenumber)))
1059 goto notfound;
1060
1061 plcip->plci = cmsg->adr.adrPLCI;
1062 if (cmsg->Info) {
1063 plci_change_state(card, plcip, EV_PLCI_CONNECT_CONF_ERROR);
1064 } else {
1065 plci_change_state(card, plcip, EV_PLCI_CONNECT_CONF_OK);
1066 }
1067 break;
1068
1069 case CAPI_CONNECT_ACTIVE_IND: /* plci */
1070
1071 if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI)))
1072 goto notfound;
1073
1074 if (card->bchans[plcip->chan].incoming) {
1075 capi_cmsg_answer(cmsg);
1076 send_message(card, cmsg);
1077 plci_change_state(card, plcip, EV_PLCI_CONNECT_ACTIVE_IND);
1078 } else {
1079 capidrv_ncci *nccip;
1080 capi_cmsg_answer(cmsg);
1081 send_message(card, cmsg);
1082
1083 nccip = new_ncci(card, plcip, cmsg->adr.adrPLCI);
1084
1085 if (!nccip) {
1086 printk(KERN_ERR "capidrv-%d: no mem for ncci, sorry\n", card->contrnr);
1087 break; /* $$$$ */
1088 }
1089 capi_fill_CONNECT_B3_REQ(cmsg,
1090 global.ap.applid,
1091 card->msgid++,
1092 plcip->plci, /* adr */
1093 NULL /* NCPI */
1094 );
1095 nccip->msgid = cmsg->Messagenumber;
1096 send_message(card, cmsg);
1097 cmd.command = ISDN_STAT_DCONN;
1098 cmd.driver = card->myid;
1099 cmd.arg = plcip->chan;
1100 card->interface.statcallb(&cmd);
1101 plci_change_state(card, plcip, EV_PLCI_CONNECT_ACTIVE_IND);
1102 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_REQ);
1103 }
1104 break;
1105
1106 case CAPI_INFO_IND: /* Controller/plci */
1107
1108 if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI)))
1109 goto notfound;
1110
1111 if (cmsg->InfoNumber == 0x4000) {
1112 if (cmsg->InfoElement[0] == 4) {
1113 cmd.command = ISDN_STAT_CINF;
1114 cmd.driver = card->myid;
1115 cmd.arg = plcip->chan;
1116 sprintf(cmd.parm.num, "%lu",
1117 (unsigned long)
1118 ((u32) cmsg->InfoElement[1]
1119 | ((u32) (cmsg->InfoElement[2]) << 8)
1120 | ((u32) (cmsg->InfoElement[3]) << 16)
1121 | ((u32) (cmsg->InfoElement[4]) << 24)));
1122 card->interface.statcallb(&cmd);
1123 break;
1124 }
1125 }
1126 printk(KERN_ERR "capidrv-%d: %s\n",
1127 card->contrnr, capi_cmsg2str(cmsg));
1128 break;
1129
1130 case CAPI_CONNECT_ACTIVE_CONF: /* plci */
1131 goto ignored;
1132 case CAPI_SELECT_B_PROTOCOL_CONF: /* plci */
1133 goto ignored;
1134 case CAPI_FACILITY_IND: /* Controller/plci/ncci */
1135 goto ignored;
1136 case CAPI_FACILITY_CONF: /* Controller/plci/ncci */
1137 goto ignored;
1138
1139 case CAPI_INFO_CONF: /* Controller/plci */
1140 goto ignored;
1141
1142 default:
1143 printk(KERN_ERR "capidrv-%d: got %s for plci 0x%x ???",
1144 card->contrnr,
1145 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1146 cmsg->adr.adrPLCI);
1147 }
1148 return;
1149 ignored:
1150 printk(KERN_INFO "capidrv-%d: %s for plci 0x%x ignored\n",
1151 card->contrnr,
1152 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1153 cmsg->adr.adrPLCI);
1154 return;
1155 notfound:
1156 printk(KERN_ERR "capidrv-%d: %s: plci 0x%x not found\n",
1157 card->contrnr,
1158 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1159 cmsg->adr.adrPLCI);
1160 return;
1161}
1162
1163static void handle_ncci(_cmsg * cmsg)
1164{
1165 capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f);
1166 capidrv_plci *plcip;
1167 capidrv_ncci *nccip;
1168 isdn_ctrl cmd;
1169 int len;
1170
1171 if (!card) {
1172 printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n",
1173 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1174 cmsg->adr.adrController & 0x7f);
1175 return;
1176 }
1177 switch (CAPICMD(cmsg->Command, cmsg->Subcommand)) {
1178
1179 case CAPI_CONNECT_B3_ACTIVE_IND: /* ncci */
1180 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
1181 goto notfound;
1182
1183 capi_cmsg_answer(cmsg);
1184 send_message(card, cmsg);
1185 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_ACTIVE_IND);
1186
1187 cmd.command = ISDN_STAT_BCONN;
1188 cmd.driver = card->myid;
1189 cmd.arg = nccip->chan;
1190 card->interface.statcallb(&cmd);
1191
1192 printk(KERN_INFO "capidrv-%d: chan %d up with ncci 0x%x\n",
1193 card->contrnr, nccip->chan, nccip->ncci);
1194 break;
1195
1196 case CAPI_CONNECT_B3_ACTIVE_CONF: /* ncci */
1197 goto ignored;
1198
1199 case CAPI_CONNECT_B3_IND: /* ncci */
1200
1201 plcip = find_plci_by_ncci(card, cmsg->adr.adrNCCI);
1202 if (plcip) {
1203 nccip = new_ncci(card, plcip, cmsg->adr.adrNCCI);
1204 if (nccip) {
1205 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_IND);
1206 capi_fill_CONNECT_B3_RESP(cmsg,
1207 global.ap.applid,
1208 card->msgid++,
1209 nccip->ncci, /* adr */
1210 0, /* Reject */
1211 NULL /* NCPI */
1212 );
1213 send_message(card, cmsg);
1214 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_RESP);
1215 break;
1216 }
1217 printk(KERN_ERR "capidrv-%d: no mem for ncci, sorry\n", card->contrnr);
1218 } else {
1219 printk(KERN_ERR "capidrv-%d: %s: plci for ncci 0x%x not found\n",
1220 card->contrnr,
1221 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1222 cmsg->adr.adrNCCI);
1223 }
1224 capi_fill_CONNECT_B3_RESP(cmsg,
1225 global.ap.applid,
1226 card->msgid++,
1227 cmsg->adr.adrNCCI,
1228 2, /* Reject */
1229 NULL /* NCPI */
1230 );
1231 send_message(card, cmsg);
1232 break;
1233
1234 case CAPI_CONNECT_B3_CONF: /* ncci */
1235
1236 if (!(nccip = find_ncci_by_msgid(card,
1237 cmsg->adr.adrNCCI,
1238 cmsg->Messagenumber)))
1239 goto notfound;
1240
1241 nccip->ncci = cmsg->adr.adrNCCI;
1242 if (cmsg->Info) {
1243 printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for ncci 0x%x\n",
1244 card->contrnr,
1245 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1246 cmsg->Info, capi_info2str(cmsg->Info),
1247 cmsg->adr.adrNCCI);
1248 }
1249
1250 if (cmsg->Info)
1251 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_CONF_ERROR);
1252 else
1253 ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_CONF_OK);
1254 break;
1255
1256 case CAPI_CONNECT_B3_T90_ACTIVE_IND: /* ncci */
1257 capi_cmsg_answer(cmsg);
1258 send_message(card, cmsg);
1259 break;
1260
1261 case CAPI_DATA_B3_IND: /* ncci */
1262 /* handled in handle_data() */
1263 goto ignored;
1264
1265 case CAPI_DATA_B3_CONF: /* ncci */
1266 if (cmsg->Info) {
1267 printk(KERN_WARNING "CAPI_DATA_B3_CONF: Info %x - %s\n",
1268 cmsg->Info, capi_info2str(cmsg->Info));
1269 }
1270 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
1271 goto notfound;
1272
1273 len = capidrv_del_ack(nccip, cmsg->DataHandle);
1274 if (len < 0)
1275 break;
1276 cmd.command = ISDN_STAT_BSENT;
1277 cmd.driver = card->myid;
1278 cmd.arg = nccip->chan;
1279 cmd.parm.length = len;
1280 card->interface.statcallb(&cmd);
1281 break;
1282
1283 case CAPI_DISCONNECT_B3_IND: /* ncci */
1284 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
1285 goto notfound;
1286
1287 card->bchans[nccip->chan].disconnecting = 1;
1288 ncci_change_state(card, nccip, EV_NCCI_DISCONNECT_B3_IND);
1289 capi_cmsg_answer(cmsg);
1290 send_message(card, cmsg);
1291 ncci_change_state(card, nccip, EV_NCCI_DISCONNECT_B3_RESP);
1292 break;
1293
1294 case CAPI_DISCONNECT_B3_CONF: /* ncci */
1295 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
1296 goto notfound;
1297 if (cmsg->Info) {
1298 printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for ncci 0x%x\n",
1299 card->contrnr,
1300 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1301 cmsg->Info, capi_info2str(cmsg->Info),
1302 cmsg->adr.adrNCCI);
1303 ncci_change_state(card, nccip, EV_NCCI_DISCONNECT_B3_CONF_ERROR);
1304 }
1305 break;
1306
1307 case CAPI_RESET_B3_IND: /* ncci */
1308 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
1309 goto notfound;
1310 ncci_change_state(card, nccip, EV_NCCI_RESET_B3_IND);
1311 capi_cmsg_answer(cmsg);
1312 send_message(card, cmsg);
1313 break;
1314
1315 case CAPI_RESET_B3_CONF: /* ncci */
1316 goto ignored; /* $$$$ */
1317
1318 case CAPI_FACILITY_IND: /* Controller/plci/ncci */
1319 goto ignored;
1320 case CAPI_FACILITY_CONF: /* Controller/plci/ncci */
1321 goto ignored;
1322
1323 default:
1324 printk(KERN_ERR "capidrv-%d: got %s for ncci 0x%x ???",
1325 card->contrnr,
1326 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1327 cmsg->adr.adrNCCI);
1328 }
1329 return;
1330 ignored:
1331 printk(KERN_INFO "capidrv-%d: %s for ncci 0x%x ignored\n",
1332 card->contrnr,
1333 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1334 cmsg->adr.adrNCCI);
1335 return;
1336 notfound:
1337 printk(KERN_ERR "capidrv-%d: %s: ncci 0x%x not found\n",
1338 card->contrnr,
1339 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1340 cmsg->adr.adrNCCI);
1341}
1342
1343
1344static void handle_data(_cmsg * cmsg, struct sk_buff *skb)
1345{
1346 capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f);
1347 capidrv_ncci *nccip;
1348
1349 if (!card) {
1350 printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n",
1351 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1352 cmsg->adr.adrController & 0x7f);
1353 kfree_skb(skb);
1354 return;
1355 }
1356 if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI))) {
1357 printk(KERN_ERR "capidrv-%d: %s: ncci 0x%x not found\n",
1358 card->contrnr,
1359 capi_cmd2str(cmsg->Command, cmsg->Subcommand),
1360 cmsg->adr.adrNCCI);
1361 kfree_skb(skb);
1362 return;
1363 }
1364 (void) skb_pull(skb, CAPIMSG_LEN(skb->data));
1365 card->interface.rcvcallb_skb(card->myid, nccip->chan, skb);
1366 capi_cmsg_answer(cmsg);
1367 send_message(card, cmsg);
1368}
1369
1370static _cmsg s_cmsg;
1371
1372static void capidrv_recv_message(struct capi20_appl *ap, struct sk_buff *skb)
1373{
1374 capi_message2cmsg(&s_cmsg, skb->data);
1375 if (debugmode > 3)
1376 printk(KERN_DEBUG "capidrv_signal: applid=%d %s\n",
1377 ap->applid, capi_cmsg2str(&s_cmsg));
1378
1379 if (s_cmsg.Command == CAPI_DATA_B3
1380 && s_cmsg.Subcommand == CAPI_IND) {
1381 handle_data(&s_cmsg, skb);
1382 return;
1383 }
1384 if ((s_cmsg.adr.adrController & 0xffffff00) == 0)
1385 handle_controller(&s_cmsg);
1386 else if ((s_cmsg.adr.adrPLCI & 0xffff0000) == 0)
1387 handle_plci(&s_cmsg);
1388 else
1389 handle_ncci(&s_cmsg);
1390 /*
1391 * data of skb used in s_cmsg,
1392 * free data when s_cmsg is not used again
1393 * thanks to Lars Heete <hel@admin.de>
1394 */
1395 kfree_skb(skb);
1396}
1397
1398/* ------------------------------------------------------------------- */
1399
1400#define PUTBYTE_TO_STATUS(card, byte) \
1401 do { \
1402 *(card)->q931_write++ = (byte); \
1403 if ((card)->q931_write > (card)->q931_end) \
1404 (card)->q931_write = (card)->q931_buf; \
1405 } while (0)
1406
1407static void handle_dtrace_data(capidrv_contr *card,
1408 int send, int level2, u8 *data, u16 len)
1409{
1410 u8 *p, *end;
1411 isdn_ctrl cmd;
1412
1413 if (!len) {
1414 printk(KERN_DEBUG "capidrv-%d: avmb1_q931_data: len == %d\n",
1415 card->contrnr, len);
1416 return;
1417 }
1418
1419 if (level2) {
1420 PUTBYTE_TO_STATUS(card, 'D');
1421 PUTBYTE_TO_STATUS(card, '2');
1422 PUTBYTE_TO_STATUS(card, send ? '>' : '<');
1423 PUTBYTE_TO_STATUS(card, ':');
1424 } else {
1425 PUTBYTE_TO_STATUS(card, 'D');
1426 PUTBYTE_TO_STATUS(card, '3');
1427 PUTBYTE_TO_STATUS(card, send ? '>' : '<');
1428 PUTBYTE_TO_STATUS(card, ':');
1429 }
1430
1431 for (p = data, end = data+len; p < end; p++) {
1432 u8 w;
1433 PUTBYTE_TO_STATUS(card, ' ');
1434 w = (*p >> 4) & 0xf;
1435 PUTBYTE_TO_STATUS(card, (w < 10) ? '0'+w : 'A'-10+w);
1436 w = *p & 0xf;
1437 PUTBYTE_TO_STATUS(card, (w < 10) ? '0'+w : 'A'-10+w);
1438 }
1439 PUTBYTE_TO_STATUS(card, '\n');
1440
1441 cmd.command = ISDN_STAT_STAVAIL;
1442 cmd.driver = card->myid;
1443 cmd.arg = len*3+5;
1444 card->interface.statcallb(&cmd);
1445}
1446
1447/* ------------------------------------------------------------------- */
1448
1449static _cmsg cmdcmsg;
1450
1451static int capidrv_ioctl(isdn_ctrl * c, capidrv_contr * card)
1452{
1453 switch (c->arg) {
1454 case 1:
1455 debugmode = (int)(*((unsigned int *)c->parm.num));
1456 printk(KERN_DEBUG "capidrv-%d: debugmode=%d\n",
1457 card->contrnr, debugmode);
1458 return 0;
1459 default:
1460 printk(KERN_DEBUG "capidrv-%d: capidrv_ioctl(%ld) called ??\n",
1461 card->contrnr, c->arg);
1462 return -EINVAL;
1463 }
1464 return -EINVAL;
1465}
1466
1467/*
1468 * Handle leased lines (CAPI-Bundling)
1469 */
1470
1471struct internal_bchannelinfo {
1472 unsigned short channelalloc;
1473 unsigned short operation;
1474 unsigned char cmask[31];
1475};
1476
1477static int decodeFVteln(char *teln, unsigned long *bmaskp, int *activep)
1478{
1479 unsigned long bmask = 0;
1480 int active = !0;
1481 char *s;
1482 int i;
1483
1484 if (strncmp(teln, "FV:", 3) != 0)
1485 return 1;
1486 s = teln + 3;
1487 while (*s && *s == ' ') s++;
1488 if (!*s) return -2;
1489 if (*s == 'p' || *s == 'P') {
1490 active = 0;
1491 s++;
1492 }
1493 if (*s == 'a' || *s == 'A') {
1494 active = !0;
1495 s++;
1496 }
1497 while (*s) {
1498 int digit1 = 0;
1499 int digit2 = 0;
1500 if (!isdigit(*s)) return -3;
1501 while (isdigit(*s)) { digit1 = digit1*10 + (*s - '0'); s++; }
1502 if (digit1 <= 0 && digit1 > 30) return -4;
1503 if (*s == 0 || *s == ',' || *s == ' ') {
1504 bmask |= (1 << digit1);
1505 digit1 = 0;
1506 if (*s) s++;
1507 continue;
1508 }
1509 if (*s != '-') return -5;
1510 s++;
1511 if (!isdigit(*s)) return -3;
1512 while (isdigit(*s)) { digit2 = digit2*10 + (*s - '0'); s++; }
1513 if (digit2 <= 0 && digit2 > 30) return -4;
1514 if (*s == 0 || *s == ',' || *s == ' ') {
1515 if (digit1 > digit2)
1516 for (i = digit2; i <= digit1 ; i++)
1517 bmask |= (1 << i);
1518 else
1519 for (i = digit1; i <= digit2 ; i++)
1520 bmask |= (1 << i);
1521 digit1 = digit2 = 0;
1522 if (*s) s++;
1523 continue;
1524 }
1525 return -6;
1526 }
1527 if (activep) *activep = active;
1528 if (bmaskp) *bmaskp = bmask;
1529 return 0;
1530}
1531
1532static int FVteln2capi20(char *teln, u8 AdditionalInfo[1+2+2+31])
1533{
1534 unsigned long bmask;
1535 int active;
1536 int rc, i;
1537
1538 rc = decodeFVteln(teln, &bmask, &active);
1539 if (rc) return rc;
1540 /* Length */
1541 AdditionalInfo[0] = 2+2+31;
1542 /* Channel: 3 => use channel allocation */
1543 AdditionalInfo[1] = 3; AdditionalInfo[2] = 0;
1544 /* Operation: 0 => DTE mode, 1 => DCE mode */
1545 if (active) {
1546 AdditionalInfo[3] = 0; AdditionalInfo[4] = 0;
1547 } else {
1548 AdditionalInfo[3] = 1; AdditionalInfo[4] = 0;
1549 }
1550 /* Channel mask array */
1551 AdditionalInfo[5] = 0; /* no D-Channel */
1552 for (i=1; i <= 30; i++)
1553 AdditionalInfo[5+i] = (bmask & (1 << i)) ? 0xff : 0;
1554 return 0;
1555}
1556
1557static int capidrv_command(isdn_ctrl * c, capidrv_contr * card)
1558{
1559 isdn_ctrl cmd;
1560 struct capidrv_bchan *bchan;
1561 struct capidrv_plci *plcip;
1562 u8 AdditionalInfo[1+2+2+31];
1563 int rc, isleasedline = 0;
1564
1565 if (c->command == ISDN_CMD_IOCTL)
1566 return capidrv_ioctl(c, card);
1567
1568 switch (c->command) {
1569 case ISDN_CMD_DIAL:{
1570 u8 calling[ISDN_MSNLEN + 3];
1571 u8 called[ISDN_MSNLEN + 2];
1572
1573 if (debugmode)
1574 printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_DIAL(ch=%ld,\"%s,%d,%d,%s\")\n",
1575 card->contrnr,
1576 c->arg,
1577 c->parm.setup.phone,
1578 c->parm.setup.si1,
1579 c->parm.setup.si2,
1580 c->parm.setup.eazmsn);
1581
1582 bchan = &card->bchans[c->arg % card->nbchan];
1583
1584 if (bchan->plcip) {
1585 printk(KERN_ERR "capidrv-%d: dail ch=%ld,\"%s,%d,%d,%s\" in use (plci=0x%x)\n",
1586 card->contrnr,
1587 c->arg,
1588 c->parm.setup.phone,
1589 c->parm.setup.si1,
1590 c->parm.setup.si2,
1591 c->parm.setup.eazmsn,
1592 bchan->plcip->plci);
1593 return 0;
1594 }
1595 bchan->si1 = c->parm.setup.si1;
1596 bchan->si2 = c->parm.setup.si2;
1597
1598 strncpy(bchan->num, c->parm.setup.phone, sizeof(bchan->num));
1599 strncpy(bchan->mynum, c->parm.setup.eazmsn, sizeof(bchan->mynum));
1600 rc = FVteln2capi20(bchan->num, AdditionalInfo);
1601 isleasedline = (rc == 0);
1602 if (rc < 0)
1603 printk(KERN_ERR "capidrv-%d: WARNING: invalid leased linedefinition \"%s\"\n", card->contrnr, bchan->num);
1604
1605 if (isleasedline) {
1606 calling[0] = 0;
1607 called[0] = 0;
1608 if (debugmode)
1609 printk(KERN_DEBUG "capidrv-%d: connecting leased line\n", card->contrnr);
1610 } else {
1611 calling[0] = strlen(bchan->mynum) + 2;
1612 calling[1] = 0;
1613 calling[2] = 0x80;
1614 strncpy(calling + 3, bchan->mynum, ISDN_MSNLEN);
1615 called[0] = strlen(bchan->num) + 1;
1616 called[1] = 0x80;
1617 strncpy(called + 2, bchan->num, ISDN_MSNLEN);
1618 }
1619
1620 capi_fill_CONNECT_REQ(&cmdcmsg,
1621 global.ap.applid,
1622 card->msgid++,
1623 card->contrnr, /* adr */
1624 si2cip(bchan->si1, bchan->si2), /* cipvalue */
1625 called, /* CalledPartyNumber */
1626 calling, /* CallingPartyNumber */
1627 NULL, /* CalledPartySubaddress */
1628 NULL, /* CallingPartySubaddress */
1629 b1prot(bchan->l2, bchan->l3), /* B1protocol */
1630 b2prot(bchan->l2, bchan->l3), /* B2protocol */
1631 b3prot(bchan->l2, bchan->l3), /* B3protocol */
1632 b1config(bchan->l2, bchan->l3), /* B1configuration */
1633 NULL, /* B2configuration */
1634 NULL, /* B3configuration */
1635 NULL, /* BC */
1636 NULL, /* LLC */
1637 NULL, /* HLC */
1638 /* BChannelinformation */
1639 isleasedline ? AdditionalInfo : NULL,
1640 NULL, /* Keypadfacility */
1641 NULL, /* Useruserdata */
1642 NULL /* Facilitydataarray */
1643 );
1644 if ((plcip = new_plci(card, (c->arg % card->nbchan))) == 0) {
1645 cmd.command = ISDN_STAT_DHUP;
1646 cmd.driver = card->myid;
1647 cmd.arg = (c->arg % card->nbchan);
1648 card->interface.statcallb(&cmd);
1649 return -1;
1650 }
1651 plcip->msgid = cmdcmsg.Messagenumber;
1652 plcip->leasedline = isleasedline;
1653 plci_change_state(card, plcip, EV_PLCI_CONNECT_REQ);
1654 send_message(card, &cmdcmsg);
1655 return 0;
1656 }
1657
1658 case ISDN_CMD_ACCEPTD:
1659
1660 bchan = &card->bchans[c->arg % card->nbchan];
1661 if (debugmode)
1662 printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_ACCEPTD(ch=%ld) l2=%d l3=%d\n",
1663 card->contrnr,
1664 c->arg, bchan->l2, bchan->l3);
1665
1666 capi_fill_CONNECT_RESP(&cmdcmsg,
1667 global.ap.applid,
1668 card->msgid++,
1669 bchan->plcip->plci, /* adr */
1670 0, /* Reject */
1671 b1prot(bchan->l2, bchan->l3), /* B1protocol */
1672 b2prot(bchan->l2, bchan->l3), /* B2protocol */
1673 b3prot(bchan->l2, bchan->l3), /* B3protocol */
1674 b1config(bchan->l2, bchan->l3), /* B1configuration */
1675 NULL, /* B2configuration */
1676 NULL, /* B3configuration */
1677 NULL, /* ConnectedNumber */
1678 NULL, /* ConnectedSubaddress */
1679 NULL, /* LLC */
1680 NULL, /* BChannelinformation */
1681 NULL, /* Keypadfacility */
1682 NULL, /* Useruserdata */
1683 NULL /* Facilitydataarray */
1684 );
1685 capi_cmsg2message(&cmdcmsg, cmdcmsg.buf);
1686 plci_change_state(card, bchan->plcip, EV_PLCI_CONNECT_RESP);
1687 send_message(card, &cmdcmsg);
1688 return 0;
1689
1690 case ISDN_CMD_ACCEPTB:
1691 if (debugmode)
1692 printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_ACCEPTB(ch=%ld)\n",
1693 card->contrnr,
1694 c->arg);
1695 return -ENOSYS;
1696
1697 case ISDN_CMD_HANGUP:
1698 if (debugmode)
1699 printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_HANGUP(ch=%ld)\n",
1700 card->contrnr,
1701 c->arg);
1702 bchan = &card->bchans[c->arg % card->nbchan];
1703
1704 if (bchan->disconnecting) {
1705 if (debugmode)
1706 printk(KERN_DEBUG "capidrv-%d: chan %ld already disconnecting ...\n",
1707 card->contrnr,
1708 c->arg);
1709 return 0;
1710 }
1711 if (bchan->nccip) {
1712 bchan->disconnecting = 1;
1713 capi_fill_DISCONNECT_B3_REQ(&cmdcmsg,
1714 global.ap.applid,
1715 card->msgid++,
1716 bchan->nccip->ncci,
1717 NULL /* NCPI */
1718 );
1719 ncci_change_state(card, bchan->nccip, EV_NCCI_DISCONNECT_B3_REQ);
1720 send_message(card, &cmdcmsg);
1721 return 0;
1722 } else if (bchan->plcip) {
1723 if (bchan->plcip->state == ST_PLCI_INCOMING) {
1724 /*
1725 * just ignore, we a called from
1726 * isdn_status_callback(),
1727 * which will return 0 or 2, this is handled
1728 * by the CONNECT_IND handler
1729 */
1730 bchan->disconnecting = 1;
1731 return 0;
1732 } else if (bchan->plcip->plci) {
1733 bchan->disconnecting = 1;
1734 capi_fill_DISCONNECT_REQ(&cmdcmsg,
1735 global.ap.applid,
1736 card->msgid++,
1737 bchan->plcip->plci,
1738 NULL, /* BChannelinformation */
1739 NULL, /* Keypadfacility */
1740 NULL, /* Useruserdata */
1741 NULL /* Facilitydataarray */
1742 );
1743 plci_change_state(card, bchan->plcip, EV_PLCI_DISCONNECT_REQ);
1744 send_message(card, &cmdcmsg);
1745 return 0;
1746 } else {
1747 printk(KERN_ERR "capidrv-%d: chan %ld disconnect request while waiting for CONNECT_CONF\n",
1748 card->contrnr,
1749 c->arg);
1750 return -EINVAL;
1751 }
1752 }
1753 printk(KERN_ERR "capidrv-%d: chan %ld disconnect request on free channel\n",
1754 card->contrnr,
1755 c->arg);
1756 return -EINVAL;
1757/* ready */
1758
1759 case ISDN_CMD_SETL2:
1760 if (debugmode)
1761 printk(KERN_DEBUG "capidrv-%d: set L2 on chan %ld to %ld\n",
1762 card->contrnr,
1763 (c->arg & 0xff), (c->arg >> 8));
1764 bchan = &card->bchans[(c->arg & 0xff) % card->nbchan];
1765 bchan->l2 = (c->arg >> 8);
1766 return 0;
1767
1768 case ISDN_CMD_SETL3:
1769 if (debugmode)
1770 printk(KERN_DEBUG "capidrv-%d: set L3 on chan %ld to %ld\n",
1771 card->contrnr,
1772 (c->arg & 0xff), (c->arg >> 8));
1773 bchan = &card->bchans[(c->arg & 0xff) % card->nbchan];
1774 bchan->l3 = (c->arg >> 8);
1775 return 0;
1776
1777 case ISDN_CMD_SETEAZ:
1778 if (debugmode)
1779 printk(KERN_DEBUG "capidrv-%d: set EAZ \"%s\" on chan %ld\n",
1780 card->contrnr,
1781 c->parm.num, c->arg);
1782 bchan = &card->bchans[c->arg % card->nbchan];
1783 strncpy(bchan->msn, c->parm.num, ISDN_MSNLEN);
1784 return 0;
1785
1786 case ISDN_CMD_CLREAZ:
1787 if (debugmode)
1788 printk(KERN_DEBUG "capidrv-%d: clearing EAZ on chan %ld\n",
1789 card->contrnr, c->arg);
1790 bchan = &card->bchans[c->arg % card->nbchan];
1791 bchan->msn[0] = 0;
1792 return 0;
1793
1794 default:
1795 printk(KERN_ERR "capidrv-%d: ISDN_CMD_%d, Huh?\n",
1796 card->contrnr, c->command);
1797 return -EINVAL;
1798 }
1799 return 0;
1800}
1801
1802static int if_command(isdn_ctrl * c)
1803{
1804 capidrv_contr *card = findcontrbydriverid(c->driver);
1805
1806 if (card)
1807 return capidrv_command(c, card);
1808
1809 printk(KERN_ERR
1810 "capidrv: if_command %d called with invalid driverId %d!\n",
1811 c->command, c->driver);
1812 return -ENODEV;
1813}
1814
1815static _cmsg sendcmsg;
1816
1817static int if_sendbuf(int id, int channel, int doack, struct sk_buff *skb)
1818{
1819 capidrv_contr *card = findcontrbydriverid(id);
1820 capidrv_bchan *bchan;
1821 capidrv_ncci *nccip;
1822 int len = skb->len;
1823 int msglen;
1824 u16 errcode;
1825 u16 datahandle;
1826
1827 if (!card) {
1828 printk(KERN_ERR "capidrv: if_sendbuf called with invalid driverId %d!\n",
1829 id);
1830 return 0;
1831 }
1832 if (debugmode > 4)
1833 printk(KERN_DEBUG "capidrv-%d: sendbuf len=%d skb=%p doack=%d\n",
1834 card->contrnr, len, skb, doack);
1835 bchan = &card->bchans[channel % card->nbchan];
1836 nccip = bchan->nccip;
1837 if (!nccip || nccip->state != ST_NCCI_ACTIVE) {
1838 printk(KERN_ERR "capidrv-%d: if_sendbuf: %s:%d: chan not up!\n",
1839 card->contrnr, card->name, channel);
1840 return 0;
1841 }
1842 datahandle = nccip->datahandle;
1843 capi_fill_DATA_B3_REQ(&sendcmsg, global.ap.applid, card->msgid++,
1844 nccip->ncci, /* adr */
1845 (u32) skb->data, /* Data */
1846 skb->len, /* DataLength */
1847 datahandle, /* DataHandle */
1848 0 /* Flags */
1849 );
1850
1851 if (capidrv_add_ack(nccip, datahandle, doack ? (int)skb->len : -1) < 0)
1852 return 0;
1853
1854 capi_cmsg2message(&sendcmsg, sendcmsg.buf);
1855 msglen = CAPIMSG_LEN(sendcmsg.buf);
1856 if (skb_headroom(skb) < msglen) {
1857 struct sk_buff *nskb = skb_realloc_headroom(skb, msglen);
1858 if (!nskb) {
1859 printk(KERN_ERR "capidrv-%d: if_sendbuf: no memory\n",
1860 card->contrnr);
1861 (void)capidrv_del_ack(nccip, datahandle);
1862 return 0;
1863 }
1864 printk(KERN_DEBUG "capidrv-%d: only %d bytes headroom, need %d\n",
1865 card->contrnr, skb_headroom(skb), msglen);
1866 memcpy(skb_push(nskb, msglen), sendcmsg.buf, msglen);
1867 errcode = capi20_put_message(&global.ap, nskb);
1868 if (errcode == CAPI_NOERROR) {
1869 dev_kfree_skb(skb);
1870 nccip->datahandle++;
1871 return len;
1872 }
1873 if (debugmode > 3)
1874 printk(KERN_DEBUG "capidrv-%d: sendbuf putmsg ret(%x) - %s\n",
1875 card->contrnr, errcode, capi_info2str(errcode));
1876 (void)capidrv_del_ack(nccip, datahandle);
1877 dev_kfree_skb(nskb);
1878 return errcode == CAPI_SENDQUEUEFULL ? 0 : -1;
1879 } else {
1880 memcpy(skb_push(skb, msglen), sendcmsg.buf, msglen);
1881 errcode = capi20_put_message(&global.ap, skb);
1882 if (errcode == CAPI_NOERROR) {
1883 nccip->datahandle++;
1884 return len;
1885 }
1886 if (debugmode > 3)
1887 printk(KERN_DEBUG "capidrv-%d: sendbuf putmsg ret(%x) - %s\n",
1888 card->contrnr, errcode, capi_info2str(errcode));
1889 skb_pull(skb, msglen);
1890 (void)capidrv_del_ack(nccip, datahandle);
1891 return errcode == CAPI_SENDQUEUEFULL ? 0 : -1;
1892 }
1893}
1894
1895static int if_readstat(u8 __user *buf, int len, int id, int channel)
1896{
1897 capidrv_contr *card = findcontrbydriverid(id);
1898 int count;
1899 u8 __user *p;
1900
1901 if (!card) {
1902 printk(KERN_ERR "capidrv: if_readstat called with invalid driverId %d!\n",
1903 id);
1904 return -ENODEV;
1905 }
1906
1907 for (p=buf, count=0; count < len; p++, count++) {
7786ce19
JG		 1908 if (put_user(*card->q931_read++, p))
1909 return -EFAULT;
1da177e4
LT		 1910 if (card->q931_read > card->q931_end)
1911 card->q931_read = card->q931_buf;
1912 }
1913 return count;
1914
1915}
1916
1917static void enable_dchannel_trace(capidrv_contr *card)
1918{
1919 u8 manufacturer[CAPI_MANUFACTURER_LEN];
1920 capi_version version;
1921 u16 contr = card->contrnr;
1922 u16 errcode;
1923 u16 avmversion[3];
1924
1925 errcode = capi20_get_manufacturer(contr, manufacturer);
1926 if (errcode != CAPI_NOERROR) {
1927 printk(KERN_ERR "%s: can't get manufacturer (0x%x)\n",
1928 card->name, errcode);
1929 return;
1930 }
1931 if (strstr(manufacturer, "AVM") == 0) {
1932 printk(KERN_ERR "%s: not from AVM, no d-channel trace possible (%s)\n",
1933 card->name, manufacturer);
1934 return;
1935 }
1936 errcode = capi20_get_version(contr, &version);
1937 if (errcode != CAPI_NOERROR) {
1938 printk(KERN_ERR "%s: can't get version (0x%x)\n",
1939 card->name, errcode);
1940 return;
1941 }
1942 avmversion[0] = (version.majormanuversion >> 4) & 0x0f;
1943 avmversion[1] = (version.majormanuversion << 4) & 0xf0;
1944 avmversion[1] |= (version.minormanuversion >> 4) & 0x0f;
1945 avmversion[2] |= version.minormanuversion & 0x0f;
1946
1947 if (avmversion[0] > 3 || (avmversion[0] == 3 && avmversion[1] > 5)) {
1948 printk(KERN_INFO "%s: D2 trace enabled\n", card->name);
1949 capi_fill_MANUFACTURER_REQ(&cmdcmsg, global.ap.applid,
1950 card->msgid++,
1951 contr,
1952 0x214D5641, /* ManuID */
1953 0, /* Class */
1954 1, /* Function */
1955 (_cstruct)"\004\200\014\000\000");
1956 } else {
1957 printk(KERN_INFO "%s: D3 trace enabled\n", card->name);
1958 capi_fill_MANUFACTURER_REQ(&cmdcmsg, global.ap.applid,
1959 card->msgid++,
1960 contr,
1961 0x214D5641, /* ManuID */
1962 0, /* Class */
1963 1, /* Function */
1964 (_cstruct)"\004\002\003\000\000");
1965 }
1966 send_message(card, &cmdcmsg);
1967}
1968
1969
1970static void send_listen(capidrv_contr *card)
1971{
1972 capi_fill_LISTEN_REQ(&cmdcmsg, global.ap.applid,
1973 card->msgid++,
1974 card->contrnr, /* controller */
1975 1 << 6, /* Infomask */
1976 card->cipmask,
1977 card->cipmask2,
1978 NULL, NULL);
1979 send_message(card, &cmdcmsg);
1980 listen_change_state(card, EV_LISTEN_REQ);
1981}
1982
1983static void listentimerfunc(unsigned long x)
1984{
1985 capidrv_contr *card = (capidrv_contr *)x;
1986 if (card->state != ST_LISTEN_NONE && card->state != ST_LISTEN_ACTIVE)
1987 printk(KERN_ERR "%s: controller dead ??\n", card->name);
1988 send_listen(card);
1989 mod_timer(&card->listentimer, jiffies + 60*HZ);
1990}
1991
1992
1993static int capidrv_addcontr(u16 contr, struct capi_profile *profp)
1994{
1995 capidrv_contr *card;
1996 unsigned long flags;
1997 isdn_ctrl cmd;
1998 char id[20];
1999 int i;
2000
2001 sprintf(id, "capidrv-%d", contr);
2002 if (!try_module_get(THIS_MODULE)) {
2003 printk(KERN_WARNING "capidrv: (%s) Could not reserve module\n", id);
2004 return -1;
2005 }
41f96935 2006 if (!(card = kzalloc(sizeof(capidrv_contr), GFP_ATOMIC))) {
1da177e4
LT		 2007 printk(KERN_WARNING
2008 "capidrv: (%s) Could not allocate contr-struct.\n", id);
2009 return -1;
2010 }
1da177e4
LT		 2011 card->owner = THIS_MODULE;
2012 init_timer(&card->listentimer);
2013 strcpy(card->name, id);
2014 card->contrnr = contr;
2015 card->nbchan = profp->nbchannel;
5cbded58 2016 card->bchans = kmalloc(sizeof(capidrv_bchan) * card->nbchan, GFP_ATOMIC);
1da177e4
LT		 2017 if (!card->bchans) {
2018 printk(KERN_WARNING
2019 "capidrv: (%s) Could not allocate bchan-structs.\n", id);
2020 module_put(card->owner);
2021 kfree(card);
2022 return -1;
2023 }
2024 card->interface.channels = profp->nbchannel;
2025 card->interface.maxbufsize = 2048;
2026 card->interface.command = if_command;
2027 card->interface.writebuf_skb = if_sendbuf;
2028 card->interface.writecmd = NULL;
2029 card->interface.readstat = if_readstat;
2030 card->interface.features = ISDN_FEATURE_L2_HDLC |
2031 ISDN_FEATURE_L2_TRANS |
2032 ISDN_FEATURE_L3_TRANS |
2033 ISDN_FEATURE_P_UNKNOWN |
2034 ISDN_FEATURE_L2_X75I |
2035 ISDN_FEATURE_L2_X75UI |
2036 ISDN_FEATURE_L2_X75BUI;
2037 if (profp->support1 & (1<<2))
2038 card->interface.features |= ISDN_FEATURE_L2_V11096 |
2039 ISDN_FEATURE_L2_V11019 |
2040 ISDN_FEATURE_L2_V11038;
2041 if (profp->support1 & (1<<8))
2042 card->interface.features |= ISDN_FEATURE_L2_MODEM;
2043 card->interface.hl_hdrlen = 22; /* len of DATA_B3_REQ */
2044 strncpy(card->interface.id, id, sizeof(card->interface.id) - 1);
2045
2046
2047 card->q931_read = card->q931_buf;
2048 card->q931_write = card->q931_buf;
2049 card->q931_end = card->q931_buf + sizeof(card->q931_buf) - 1;
2050
2051 if (!register_isdn(&card->interface)) {
2052 printk(KERN_ERR "capidrv: Unable to register contr %s\n", id);
2053 kfree(card->bchans);
2054 module_put(card->owner);
2055 kfree(card);
2056 return -1;
2057 }
2058 card->myid = card->interface.channels;
2059 memset(card->bchans, 0, sizeof(capidrv_bchan) * card->nbchan);
2060 for (i = 0; i < card->nbchan; i++) {
2061 card->bchans[i].contr = card;
2062 }
2063
2064 spin_lock_irqsave(&global_lock, flags);
2065 card->next = global.contr_list;
2066 global.contr_list = card;
2067 global.ncontr++;
2068 spin_unlock_irqrestore(&global_lock, flags);
2069
2070 cmd.command = ISDN_STAT_RUN;
2071 cmd.driver = card->myid;
2072 card->interface.statcallb(&cmd);
2073
2074 card->cipmask = 0x1FFF03FF; /* any */
2075 card->cipmask2 = 0;
2076
2077 card->listentimer.data = (unsigned long)card;
2078 card->listentimer.function = listentimerfunc;
2079 send_listen(card);
2080 mod_timer(&card->listentimer, jiffies + 60*HZ);
2081
2082 printk(KERN_INFO "%s: now up (%d B channels)\n",
2083 card->name, card->nbchan);
2084
2085 enable_dchannel_trace(card);
2086
2087 return 0;
2088}
2089
2090static int capidrv_delcontr(u16 contr)
2091{
2092 capidrv_contr **pp, *card;
2093 unsigned long flags;
2094 isdn_ctrl cmd;
2095
2096 spin_lock_irqsave(&global_lock, flags);
2097 for (card = global.contr_list; card; card = card->next) {
2098 if (card->contrnr == contr)
2099 break;
2100 }
2101 if (!card) {
2102 spin_unlock_irqrestore(&global_lock, flags);
2103 printk(KERN_ERR "capidrv: delcontr: no contr %u\n", contr);
2104 return -1;
2105 }
2106 #warning FIXME: maybe a race condition the card should be removed here from global list /kkeil
2107 spin_unlock_irqrestore(&global_lock, flags);
2108
2109 del_timer(&card->listentimer);
2110
2111 if (debugmode)
2112 printk(KERN_DEBUG "capidrv-%d: id=%d unloading\n",
2113 card->contrnr, card->myid);
2114
2115 cmd.command = ISDN_STAT_STOP;
2116 cmd.driver = card->myid;
2117 card->interface.statcallb(&cmd);
2118
2119 while (card->nbchan) {
2120
2121 cmd.command = ISDN_STAT_DISCH;
2122 cmd.driver = card->myid;
2123 cmd.arg = card->nbchan-1;
2124 cmd.parm.num[0] = 0;
2125 if (debugmode)
2126 printk(KERN_DEBUG "capidrv-%d: id=%d disable chan=%ld\n",
2127 card->contrnr, card->myid, cmd.arg);
2128 card->interface.statcallb(&cmd);
2129
2130 if (card->bchans[card->nbchan-1].nccip)
2131 free_ncci(card, card->bchans[card->nbchan-1].nccip);
2132 if (card->bchans[card->nbchan-1].plcip)
2133 free_plci(card, card->bchans[card->nbchan-1].plcip);
2134 if (card->plci_list)
2135 printk(KERN_ERR "capidrv: bug in free_plci()\n");
2136 card->nbchan--;
2137 }
2138 kfree(card->bchans);
2139 card->bchans = NULL;
2140
2141 if (debugmode)
2142 printk(KERN_DEBUG "capidrv-%d: id=%d isdn unload\n",
2143 card->contrnr, card->myid);
2144
2145 cmd.command = ISDN_STAT_UNLOAD;
2146 cmd.driver = card->myid;
2147 card->interface.statcallb(&cmd);
2148
2149 if (debugmode)
2150 printk(KERN_DEBUG "capidrv-%d: id=%d remove contr from list\n",
2151 card->contrnr, card->myid);
2152
2153 spin_lock_irqsave(&global_lock, flags);
2154 for (pp = &global.contr_list; *pp; pp = &(*pp)->next) {
2155 if (*pp == card) {
2156 *pp = (*pp)->next;
2157 card->next = NULL;
2158 global.ncontr--;
2159 break;
2160 }
2161 }
2162 spin_unlock_irqrestore(&global_lock, flags);
2163
2164 module_put(card->owner);
2165 printk(KERN_INFO "%s: now down.\n", card->name);
2166 kfree(card);
2167 return 0;
2168}
2169
2170
2171static void lower_callback(unsigned int cmd, u32 contr, void *data)
2172{
2173
2174 switch (cmd) {
2175 case KCI_CONTRUP:
2176 printk(KERN_INFO "capidrv: controller %hu up\n", contr);
2177 (void) capidrv_addcontr(contr, (capi_profile *) data);
2178 break;
2179 case KCI_CONTRDOWN:
2180 printk(KERN_INFO "capidrv: controller %hu down\n", contr);
2181 (void) capidrv_delcontr(contr);
2182 break;
2183 }
2184}
2185
2186/*
2187 * /proc/capi/capidrv:
2188 * nrecvctlpkt nrecvdatapkt nsendctlpkt nsenddatapkt
2189 */
2190static int proc_capidrv_read_proc(char *page, char **start, off_t off,
2191 int count, int *eof, void *data)
2192{
2193 int len = 0;
2194
2195 len += sprintf(page+len, "%lu %lu %lu %lu\n",
2196 global.ap.nrecvctlpkt,
2197 global.ap.nrecvdatapkt,
2198 global.ap.nsentctlpkt,
2199 global.ap.nsentdatapkt);
2200 if (off+count >= len)
2201 *eof = 1;
2202 if (len < off)
2203 return 0;
2204 *start = page + off;
2205 return ((count < len-off) ? count : len-off);
2206}
2207
2208static struct procfsentries {
2209 char *name;
2210 mode_t mode;
2211 int (*read_proc)(char *page, char **start, off_t off,
2212 int count, int *eof, void *data);
2213 struct proc_dir_entry *procent;
2214} procfsentries[] = {
2215 /* { "capi", S_IFDIR, 0 }, */
2216 { "capi/capidrv", 0 , proc_capidrv_read_proc },
2217};
2218
2219static void __init proc_init(void)
2220{
2221 int nelem = sizeof(procfsentries)/sizeof(procfsentries[0]);
2222 int i;
2223
2224 for (i=0; i < nelem; i++) {
2225 struct procfsentries *p = procfsentries + i;
2226 p->procent = create_proc_entry(p->name, p->mode, NULL);
2227 if (p->procent) p->procent->read_proc = p->read_proc;
2228 }
2229}
2230
2231static void __exit proc_exit(void)
2232{
2233 int nelem = sizeof(procfsentries)/sizeof(procfsentries[0]);
2234 int i;
2235
2236 for (i=nelem-1; i >= 0; i--) {
2237 struct procfsentries *p = procfsentries + i;
2238 if (p->procent) {
2239 remove_proc_entry(p->name, NULL);
2240 p->procent = NULL;
2241 }
2242 }
2243}
2244
2245static int __init capidrv_init(void)
2246{
2247 capi_profile profile;
2248 char rev[32];
2249 char *p;
2250 u32 ncontr, contr;
2251 u16 errcode;
2252
2253 if ((p = strchr(revision, ':')) != 0 && p[1]) {
2254 strncpy(rev, p + 2, sizeof(rev));
2255 rev[sizeof(rev)-1] = 0;
2256 if ((p = strchr(rev, '$')) != 0 && p > rev)
2257 *(p-1) = 0;
2258 } else
2259 strcpy(rev, "1.0");
2260
2261 global.ap.rparam.level3cnt = -2; /* number of bchannels twice */
2262 global.ap.rparam.datablkcnt = 16;
2263 global.ap.rparam.datablklen = 2048;
2264
2265 global.ap.recv_message = capidrv_recv_message;
2266 errcode = capi20_register(&global.ap);
2267 if (errcode) {
2268 return -EIO;
2269 }
2270
2271 capi20_set_callback(&global.ap, lower_callback);
2272
2273 errcode = capi20_get_profile(0, &profile);
2274 if (errcode != CAPI_NOERROR) {
2275 capi20_release(&global.ap);
2276 return -EIO;
2277 }
2278
2279 ncontr = profile.ncontroller;
2280 for (contr = 1; contr <= ncontr; contr++) {
2281 errcode = capi20_get_profile(contr, &profile);
2282 if (errcode != CAPI_NOERROR)
2283 continue;
2284 (void) capidrv_addcontr(contr, &profile);
2285 }
2286 proc_init();
2287
2288 printk(KERN_NOTICE "capidrv: Rev %s: loaded\n", rev);
2289 return 0;
2290}
2291
2292static void __exit capidrv_exit(void)
2293{
2294 char rev[10];
2295 char *p;
2296
2297 if ((p = strchr(revision, ':')) != 0) {
2298 strcpy(rev, p + 1);
2299 p = strchr(rev, '$');
2300 *p = 0;
2301 } else {
2302 strcpy(rev, " ??? ");
2303 }
2304
2305 capi20_release(&global.ap);
2306
2307 proc_exit();
2308
2309 printk(KERN_NOTICE "capidrv: Rev%s: unloaded\n", rev);
2310}
2311
2312module_init(capidrv_init);
2313module_exit(capidrv_exit);
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