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[PATCH] fix semaphore handling in __unregister_chrdev_region
[linux/fpc-iii.git] / drivers / isdn / hisax / isdnl1.c
blob4d08d27f14995bf20a0c9da4261d7b479421fcb4
1 /* $Id: isdnl1.c,v 2.46.2.5 2004/02/11 13:21:34 keil Exp $
2 *
3 * common low level stuff for Siemens Chipsetbased isdn cards
4 *
5 * Author Karsten Keil
6 * based on the teles driver from Jan den Ouden
7 * Copyright by Karsten Keil <keil@isdn4linux.de>
8 *
9 * This software may be used and distributed according to the terms
10 * of the GNU General Public License, incorporated herein by reference.
11 *
12 * For changes and modifications please read
13 * Documentation/isdn/HiSax.cert
14 *
15 * Thanks to Jan den Ouden
16 * Fritz Elfert
17 * Beat Doebeli
18 *
19 */
20
21 const char *l1_revision = "$Revision: 2.46.2.5 $";
22
23 #include <linux/init.h>
24 #include "hisax.h"
25 #include "isdnl1.h"
26
27 #define TIMER3_VALUE 7000
28
29 static struct Fsm l1fsm_b;
30 static struct Fsm l1fsm_s;
31
32 enum {
33 ST_L1_F2,
34 ST_L1_F3,
35 ST_L1_F4,
36 ST_L1_F5,
37 ST_L1_F6,
38 ST_L1_F7,
39 ST_L1_F8,
40 };
41
42 #define L1S_STATE_COUNT (ST_L1_F8+1)
43
44 static char *strL1SState[] =
45 {
46 "ST_L1_F2",
47 "ST_L1_F3",
48 "ST_L1_F4",
49 "ST_L1_F5",
50 "ST_L1_F6",
51 "ST_L1_F7",
52 "ST_L1_F8",
53 };
54
55 #ifdef HISAX_UINTERFACE
56 static
57 struct Fsm l1fsm_u =
58 {NULL, 0, 0, NULL, NULL};
59
60 enum {
61 ST_L1_RESET,
62 ST_L1_DEACT,
63 ST_L1_SYNC2,
64 ST_L1_TRANS,
65 };
66
67 #define L1U_STATE_COUNT (ST_L1_TRANS+1)
68
69 static char *strL1UState[] =
70 {
71 "ST_L1_RESET",
72 "ST_L1_DEACT",
73 "ST_L1_SYNC2",
74 "ST_L1_TRANS",
75 };
76 #endif
77
78 enum {
79 ST_L1_NULL,
80 ST_L1_WAIT_ACT,
81 ST_L1_WAIT_DEACT,
82 ST_L1_ACTIV,
83 };
84
85 #define L1B_STATE_COUNT (ST_L1_ACTIV+1)
86
87 static char *strL1BState[] =
88 {
89 "ST_L1_NULL",
90 "ST_L1_WAIT_ACT",
91 "ST_L1_WAIT_DEACT",
92 "ST_L1_ACTIV",
93 };
94
95 enum {
96 EV_PH_ACTIVATE,
97 EV_PH_DEACTIVATE,
98 EV_RESET_IND,
99 EV_DEACT_CNF,
100 EV_DEACT_IND,
101 EV_POWER_UP,
102 EV_RSYNC_IND,
103 EV_INFO2_IND,
104 EV_INFO4_IND,
105 EV_TIMER_DEACT,
106 EV_TIMER_ACT,
107 EV_TIMER3,
108 };
109
110 #define L1_EVENT_COUNT (EV_TIMER3 + 1)
111
112 static char *strL1Event[] =
113 {
114 "EV_PH_ACTIVATE",
115 "EV_PH_DEACTIVATE",
116 "EV_RESET_IND",
117 "EV_DEACT_CNF",
118 "EV_DEACT_IND",
119 "EV_POWER_UP",
120 "EV_RSYNC_IND",
121 "EV_INFO2_IND",
122 "EV_INFO4_IND",
123 "EV_TIMER_DEACT",
124 "EV_TIMER_ACT",
125 "EV_TIMER3",
126 };
127
128 void
129 debugl1(struct IsdnCardState *cs, char *fmt, ...)
130 {
131 va_list args;
132 char tmp[8];
133
134 va_start(args, fmt);
135 sprintf(tmp, "Card%d ", cs->cardnr + 1);
136 VHiSax_putstatus(cs, tmp, fmt, args);
137 va_end(args);
138 }
139
140 static void
141 l1m_debug(struct FsmInst *fi, char *fmt, ...)
142 {
143 va_list args;
144 struct PStack *st = fi->userdata;
145 struct IsdnCardState *cs = st->l1.hardware;
146 char tmp[8];
147
148 va_start(args, fmt);
149 sprintf(tmp, "Card%d ", cs->cardnr + 1);
150 VHiSax_putstatus(cs, tmp, fmt, args);
151 va_end(args);
152 }
153
154 void
155 L1activated(struct IsdnCardState *cs)
156 {
157 struct PStack *st;
158
159 st = cs->stlist;
160 while (st) {
161 if (test_and_clear_bit(FLG_L1_ACTIVATING, &st->l1.Flags))
162 st->l1.l1l2(st, PH_ACTIVATE | CONFIRM, NULL);
163 else
164 st->l1.l1l2(st, PH_ACTIVATE | INDICATION, NULL);
165 st = st->next;
166 }
167 }
168
169 void
170 L1deactivated(struct IsdnCardState *cs)
171 {
172 struct PStack *st;
173
174 st = cs->stlist;
175 while (st) {
176 if (test_bit(FLG_L1_DBUSY, &cs->HW_Flags))
177 st->l1.l1l2(st, PH_PAUSE | CONFIRM, NULL);
178 st->l1.l1l2(st, PH_DEACTIVATE | INDICATION, NULL);
179 st = st->next;
180 }
181 test_and_clear_bit(FLG_L1_DBUSY, &cs->HW_Flags);
182 }
183
184 void
185 DChannel_proc_xmt(struct IsdnCardState *cs)
186 {
187 struct PStack *stptr;
188
189 if (cs->tx_skb)
190 return;
191
192 stptr = cs->stlist;
193 while (stptr != NULL) {
194 if (test_and_clear_bit(FLG_L1_PULL_REQ, &stptr->l1.Flags)) {
195 stptr->l1.l1l2(stptr, PH_PULL | CONFIRM, NULL);
196 break;
197 } else
198 stptr = stptr->next;
199 }
200 }
201
202 void
203 DChannel_proc_rcv(struct IsdnCardState *cs)
204 {
205 struct sk_buff *skb, *nskb;
206 struct PStack *stptr = cs->stlist;
207 int found, tei, sapi;
208
209 if (stptr)
210 if (test_bit(FLG_L1_ACTTIMER, &stptr->l1.Flags))
211 FsmEvent(&stptr->l1.l1m, EV_TIMER_ACT, NULL);
212 while ((skb = skb_dequeue(&cs->rq))) {
213 #ifdef L2FRAME_DEBUG /* psa */
214 if (cs->debug & L1_DEB_LAPD)
215 Logl2Frame(cs, skb, "PH_DATA", 1);
216 #endif
217 stptr = cs->stlist;
218 if (skb->len<3) {
219 debugl1(cs, "D-channel frame too short(%d)",skb->len);
220 dev_kfree_skb(skb);
221 return;
222 }
223 if ((skb->data[0] & 1) || !(skb->data[1] &1)) {
224 debugl1(cs, "D-channel frame wrong EA0/EA1");
225 dev_kfree_skb(skb);
226 return;
227 }
228 sapi = skb->data[0] >> 2;
229 tei = skb->data[1] >> 1;
230 if (cs->debug & DEB_DLOG_HEX)
231 LogFrame(cs, skb->data, skb->len);
232 if (cs->debug & DEB_DLOG_VERBOSE)
233 dlogframe(cs, skb, 1);
234 if (tei == GROUP_TEI) {
235 if (sapi == CTRL_SAPI) { /* sapi 0 */
236 while (stptr != NULL) {
237 if ((nskb = skb_clone(skb, GFP_ATOMIC)))
238 stptr->l1.l1l2(stptr, PH_DATA | INDICATION, nskb);
239 else
240 printk(KERN_WARNING "HiSax: isdn broadcast buffer shortage\n");
241 stptr = stptr->next;
242 }
243 } else if (sapi == TEI_SAPI) {
244 while (stptr != NULL) {
245 if ((nskb = skb_clone(skb, GFP_ATOMIC)))
246 stptr->l1.l1tei(stptr, PH_DATA | INDICATION, nskb);
247 else
248 printk(KERN_WARNING "HiSax: tei broadcast buffer shortage\n");
249 stptr = stptr->next;
250 }
251 }
252 dev_kfree_skb(skb);
253 } else if (sapi == CTRL_SAPI) { /* sapi 0 */
254 found = 0;
255 while (stptr != NULL)
256 if (tei == stptr->l2.tei) {
257 stptr->l1.l1l2(stptr, PH_DATA | INDICATION, skb);
258 found = !0;
259 break;
260 } else
261 stptr = stptr->next;
262 if (!found)
263 dev_kfree_skb(skb);
264 } else
265 dev_kfree_skb(skb);
266 }
267 }
268
269 static void
270 BChannel_proc_xmt(struct BCState *bcs)
271 {
272 struct PStack *st = bcs->st;
273
274 if (test_bit(BC_FLG_BUSY, &bcs->Flag)) {
275 debugl1(bcs->cs, "BC_BUSY Error");
276 return;
277 }
278
279 if (test_and_clear_bit(FLG_L1_PULL_REQ, &st->l1.Flags))
280 st->l1.l1l2(st, PH_PULL | CONFIRM, NULL);
281 if (!test_bit(BC_FLG_ACTIV, &bcs->Flag)) {
282 if (!test_bit(BC_FLG_BUSY, &bcs->Flag) && (!skb_queue_len(&bcs->squeue))) {
283 st->l2.l2l1(st, PH_DEACTIVATE | CONFIRM, NULL);
284 }
285 }
286 }
287
288 static void
289 BChannel_proc_rcv(struct BCState *bcs)
290 {
291 struct sk_buff *skb;
292
293 if (bcs->st->l1.l1m.state == ST_L1_WAIT_ACT) {
294 FsmDelTimer(&bcs->st->l1.timer, 4);
295 FsmEvent(&bcs->st->l1.l1m, EV_TIMER_ACT, NULL);
296 }
297 while ((skb = skb_dequeue(&bcs->rqueue))) {
298 bcs->st->l1.l1l2(bcs->st, PH_DATA | INDICATION, skb);
299 }
300 }
301
302 static void
303 BChannel_proc_ack(struct BCState *bcs)
304 {
305 u_long flags;
306 int ack;
307
308 spin_lock_irqsave(&bcs->aclock, flags);
309 ack = bcs->ackcnt;
310 bcs->ackcnt = 0;
311 spin_unlock_irqrestore(&bcs->aclock, flags);
312 if (ack)
313 lli_writewakeup(bcs->st, ack);
314 }
315
316 void
317 BChannel_bh(struct BCState *bcs)
318 {
319 if (!bcs)
320 return;
321 if (test_and_clear_bit(B_RCVBUFREADY, &bcs->event))
322 BChannel_proc_rcv(bcs);
323 if (test_and_clear_bit(B_XMTBUFREADY, &bcs->event))
324 BChannel_proc_xmt(bcs);
325 if (test_and_clear_bit(B_ACKPENDING, &bcs->event))
326 BChannel_proc_ack(bcs);
327 }
328
329 void
330 HiSax_addlist(struct IsdnCardState *cs,
331 struct PStack *st)
332 {
333 st->next = cs->stlist;
334 cs->stlist = st;
335 }
336
337 void
338 HiSax_rmlist(struct IsdnCardState *cs,
339 struct PStack *st)
340 {
341 struct PStack *p;
342
343 FsmDelTimer(&st->l1.timer, 0);
344 if (cs->stlist == st)
345 cs->stlist = st->next;
346 else {
347 p = cs->stlist;
348 while (p)
349 if (p->next == st) {
350 p->next = st->next;
351 return;
352 } else
353 p = p->next;
354 }
355 }
356
357 void
358 init_bcstate(struct IsdnCardState *cs, int bc)
359 {
360 struct BCState *bcs = cs->bcs + bc;
361
362 bcs->cs = cs;
363 bcs->channel = bc;
364 INIT_WORK(&bcs->tqueue, (void *)(void *) BChannel_bh, bcs);
365 spin_lock_init(&bcs->aclock);
366 bcs->BC_SetStack = NULL;
367 bcs->BC_Close = NULL;
368 bcs->Flag = 0;
369 }
370
371 #ifdef L2FRAME_DEBUG /* psa */
372
373 char *
374 l2cmd(u_char cmd)
375 {
376 switch (cmd & ~0x10) {
377 case 1:
378 return "RR";
379 case 5:
380 return "RNR";
381 case 9:
382 return "REJ";
383 case 0x6f:
384 return "SABME";
385 case 0x0f:
386 return "DM";
387 case 3:
388 return "UI";
389 case 0x43:
390 return "DISC";
391 case 0x63:
392 return "UA";
393 case 0x87:
394 return "FRMR";
395 case 0xaf:
396 return "XID";
397 default:
398 if (!(cmd & 1))
399 return "I";
400 else
401 return "invalid command";
402 }
403 }
404
405 static char tmpdeb[32];
406
407 char *
408 l2frames(u_char * ptr)
409 {
410 switch (ptr[2] & ~0x10) {
411 case 1:
412 case 5:
413 case 9:
414 sprintf(tmpdeb, "%s[%d](nr %d)", l2cmd(ptr[2]), ptr[3] & 1, ptr[3] >> 1);
415 break;
416 case 0x6f:
417 case 0x0f:
418 case 3:
419 case 0x43:
420 case 0x63:
421 case 0x87:
422 case 0xaf:
423 sprintf(tmpdeb, "%s[%d]", l2cmd(ptr[2]), (ptr[2] & 0x10) >> 4);
424 break;
425 default:
426 if (!(ptr[2] & 1)) {
427 sprintf(tmpdeb, "I[%d](ns %d, nr %d)", ptr[3] & 1, ptr[2] >> 1, ptr[3] >> 1);
428 break;
429 } else
430 return "invalid command";
431 }
432
433
434 return tmpdeb;
435 }
436
437 void
438 Logl2Frame(struct IsdnCardState *cs, struct sk_buff *skb, char *buf, int dir)
439 {
440 u_char *ptr;
441
442 ptr = skb->data;
443
444 if (ptr[0] & 1 || !(ptr[1] & 1))
445 debugl1(cs, "Address not LAPD");
446 else
447 debugl1(cs, "%s %s: %s%c (sapi %d, tei %d)",
448 (dir ? "<-" : "->"), buf, l2frames(ptr),
449 ((ptr[0] & 2) >> 1) == dir ? 'C' : 'R', ptr[0] >> 2, ptr[1] >> 1);
450 }
451 #endif
452
453 static void
454 l1_reset(struct FsmInst *fi, int event, void *arg)
455 {
456 FsmChangeState(fi, ST_L1_F3);
457 }
458
459 static void
460 l1_deact_cnf(struct FsmInst *fi, int event, void *arg)
461 {
462 struct PStack *st = fi->userdata;
463
464 FsmChangeState(fi, ST_L1_F3);
465 if (test_bit(FLG_L1_ACTIVATING, &st->l1.Flags))
466 st->l1.l1hw(st, HW_ENABLE | REQUEST, NULL);
467 }
468
469 static void
470 l1_deact_req_s(struct FsmInst *fi, int event, void *arg)
471 {
472 struct PStack *st = fi->userdata;
473
474 FsmChangeState(fi, ST_L1_F3);
475 FsmRestartTimer(&st->l1.timer, 550, EV_TIMER_DEACT, NULL, 2);
476 test_and_set_bit(FLG_L1_DEACTTIMER, &st->l1.Flags);
477 }
478
479 static void
480 l1_power_up_s(struct FsmInst *fi, int event, void *arg)
481 {
482 struct PStack *st = fi->userdata;
483
484 if (test_bit(FLG_L1_ACTIVATING, &st->l1.Flags)) {
485 FsmChangeState(fi, ST_L1_F4);
486 st->l1.l1hw(st, HW_INFO3 | REQUEST, NULL);
487 FsmRestartTimer(&st->l1.timer, TIMER3_VALUE, EV_TIMER3, NULL, 2);
488 test_and_set_bit(FLG_L1_T3RUN, &st->l1.Flags);
489 } else
490 FsmChangeState(fi, ST_L1_F3);
491 }
492
493 static void
494 l1_go_F5(struct FsmInst *fi, int event, void *arg)
495 {
496 FsmChangeState(fi, ST_L1_F5);
497 }
498
499 static void
500 l1_go_F8(struct FsmInst *fi, int event, void *arg)
501 {
502 FsmChangeState(fi, ST_L1_F8);
503 }
504
505 static void
506 l1_info2_ind(struct FsmInst *fi, int event, void *arg)
507 {
508 struct PStack *st = fi->userdata;
509
510 #ifdef HISAX_UINTERFACE
511 if (test_bit(FLG_L1_UINT, &st->l1.Flags))
512 FsmChangeState(fi, ST_L1_SYNC2);
513 else
514 #endif
515 FsmChangeState(fi, ST_L1_F6);
516 st->l1.l1hw(st, HW_INFO3 | REQUEST, NULL);
517 }
518
519 static void
520 l1_info4_ind(struct FsmInst *fi, int event, void *arg)
521 {
522 struct PStack *st = fi->userdata;
523
524 #ifdef HISAX_UINTERFACE
525 if (test_bit(FLG_L1_UINT, &st->l1.Flags))
526 FsmChangeState(fi, ST_L1_TRANS);
527 else
528 #endif
529 FsmChangeState(fi, ST_L1_F7);
530 st->l1.l1hw(st, HW_INFO3 | REQUEST, NULL);
531 if (test_and_clear_bit(FLG_L1_DEACTTIMER, &st->l1.Flags))
532 FsmDelTimer(&st->l1.timer, 4);
533 if (!test_bit(FLG_L1_ACTIVATED, &st->l1.Flags)) {
534 if (test_and_clear_bit(FLG_L1_T3RUN, &st->l1.Flags))
535 FsmDelTimer(&st->l1.timer, 3);
536 FsmRestartTimer(&st->l1.timer, 110, EV_TIMER_ACT, NULL, 2);
537 test_and_set_bit(FLG_L1_ACTTIMER, &st->l1.Flags);
538 }
539 }
540
541 static void
542 l1_timer3(struct FsmInst *fi, int event, void *arg)
543 {
544 struct PStack *st = fi->userdata;
545
546 test_and_clear_bit(FLG_L1_T3RUN, &st->l1.Flags);
547 if (test_and_clear_bit(FLG_L1_ACTIVATING, &st->l1.Flags))
548 L1deactivated(st->l1.hardware);
549
550 #ifdef HISAX_UINTERFACE
551 if (!test_bit(FLG_L1_UINT, &st->l1.Flags))
552 #endif
553 if (st->l1.l1m.state != ST_L1_F6) {
554 FsmChangeState(fi, ST_L1_F3);
555 st->l1.l1hw(st, HW_ENABLE | REQUEST, NULL);
556 }
557 }
558
559 static void
560 l1_timer_act(struct FsmInst *fi, int event, void *arg)
561 {
562 struct PStack *st = fi->userdata;
563
564 test_and_clear_bit(FLG_L1_ACTTIMER, &st->l1.Flags);
565 test_and_set_bit(FLG_L1_ACTIVATED, &st->l1.Flags);
566 L1activated(st->l1.hardware);
567 }
568
569 static void
570 l1_timer_deact(struct FsmInst *fi, int event, void *arg)
571 {
572 struct PStack *st = fi->userdata;
573
574 test_and_clear_bit(FLG_L1_DEACTTIMER, &st->l1.Flags);
575 test_and_clear_bit(FLG_L1_ACTIVATED, &st->l1.Flags);
576 L1deactivated(st->l1.hardware);
577 st->l1.l1hw(st, HW_DEACTIVATE | RESPONSE, NULL);
578 }
579
580 static void
581 l1_activate_s(struct FsmInst *fi, int event, void *arg)
582 {
583 struct PStack *st = fi->userdata;
584
585 st->l1.l1hw(st, HW_RESET | REQUEST, NULL);
586 }
587
588 static void
589 l1_activate_no(struct FsmInst *fi, int event, void *arg)
590 {
591 struct PStack *st = fi->userdata;
592
593 if ((!test_bit(FLG_L1_DEACTTIMER, &st->l1.Flags)) && (!test_bit(FLG_L1_T3RUN, &st->l1.Flags))) {
594 test_and_clear_bit(FLG_L1_ACTIVATING, &st->l1.Flags);
595 L1deactivated(st->l1.hardware);
596 }
597 }
598
599 static struct FsmNode L1SFnList[] __initdata =
600 {
601 {ST_L1_F3, EV_PH_ACTIVATE, l1_activate_s},
602 {ST_L1_F6, EV_PH_ACTIVATE, l1_activate_no},
603 {ST_L1_F8, EV_PH_ACTIVATE, l1_activate_no},
604 {ST_L1_F3, EV_RESET_IND, l1_reset},
605 {ST_L1_F4, EV_RESET_IND, l1_reset},
606 {ST_L1_F5, EV_RESET_IND, l1_reset},
607 {ST_L1_F6, EV_RESET_IND, l1_reset},
608 {ST_L1_F7, EV_RESET_IND, l1_reset},
609 {ST_L1_F8, EV_RESET_IND, l1_reset},
610 {ST_L1_F3, EV_DEACT_CNF, l1_deact_cnf},
611 {ST_L1_F4, EV_DEACT_CNF, l1_deact_cnf},
612 {ST_L1_F5, EV_DEACT_CNF, l1_deact_cnf},
613 {ST_L1_F6, EV_DEACT_CNF, l1_deact_cnf},
614 {ST_L1_F7, EV_DEACT_CNF, l1_deact_cnf},
615 {ST_L1_F8, EV_DEACT_CNF, l1_deact_cnf},
616 {ST_L1_F6, EV_DEACT_IND, l1_deact_req_s},
617 {ST_L1_F7, EV_DEACT_IND, l1_deact_req_s},
618 {ST_L1_F8, EV_DEACT_IND, l1_deact_req_s},
619 {ST_L1_F3, EV_POWER_UP, l1_power_up_s},
620 {ST_L1_F4, EV_RSYNC_IND, l1_go_F5},
621 {ST_L1_F6, EV_RSYNC_IND, l1_go_F8},
622 {ST_L1_F7, EV_RSYNC_IND, l1_go_F8},
623 {ST_L1_F3, EV_INFO2_IND, l1_info2_ind},
624 {ST_L1_F4, EV_INFO2_IND, l1_info2_ind},
625 {ST_L1_F5, EV_INFO2_IND, l1_info2_ind},
626 {ST_L1_F7, EV_INFO2_IND, l1_info2_ind},
627 {ST_L1_F8, EV_INFO2_IND, l1_info2_ind},
628 {ST_L1_F3, EV_INFO4_IND, l1_info4_ind},
629 {ST_L1_F4, EV_INFO4_IND, l1_info4_ind},
630 {ST_L1_F5, EV_INFO4_IND, l1_info4_ind},
631 {ST_L1_F6, EV_INFO4_IND, l1_info4_ind},
632 {ST_L1_F8, EV_INFO4_IND, l1_info4_ind},
633 {ST_L1_F3, EV_TIMER3, l1_timer3},
634 {ST_L1_F4, EV_TIMER3, l1_timer3},
635 {ST_L1_F5, EV_TIMER3, l1_timer3},
636 {ST_L1_F6, EV_TIMER3, l1_timer3},
637 {ST_L1_F8, EV_TIMER3, l1_timer3},
638 {ST_L1_F7, EV_TIMER_ACT, l1_timer_act},
639 {ST_L1_F3, EV_TIMER_DEACT, l1_timer_deact},
640 {ST_L1_F4, EV_TIMER_DEACT, l1_timer_deact},
641 {ST_L1_F5, EV_TIMER_DEACT, l1_timer_deact},
642 {ST_L1_F6, EV_TIMER_DEACT, l1_timer_deact},
643 {ST_L1_F7, EV_TIMER_DEACT, l1_timer_deact},
644 {ST_L1_F8, EV_TIMER_DEACT, l1_timer_deact},
645 };
646
647 #define L1S_FN_COUNT (sizeof(L1SFnList)/sizeof(struct FsmNode))
648
649 #ifdef HISAX_UINTERFACE
650 static void
651 l1_deact_req_u(struct FsmInst *fi, int event, void *arg)
652 {
653 struct PStack *st = fi->userdata;
654
655 FsmChangeState(fi, ST_L1_RESET);
656 FsmRestartTimer(&st->l1.timer, 550, EV_TIMER_DEACT, NULL, 2);
657 test_and_set_bit(FLG_L1_DEACTTIMER, &st->l1.Flags);
658 st->l1.l1hw(st, HW_ENABLE | REQUEST, NULL);
659 }
660
661 static void
662 l1_power_up_u(struct FsmInst *fi, int event, void *arg)
663 {
664 struct PStack *st = fi->userdata;
665
666 FsmRestartTimer(&st->l1.timer, TIMER3_VALUE, EV_TIMER3, NULL, 2);
667 test_and_set_bit(FLG_L1_T3RUN, &st->l1.Flags);
668 }
669
670 static void
671 l1_info0_ind(struct FsmInst *fi, int event, void *arg)
672 {
673 FsmChangeState(fi, ST_L1_DEACT);
674 }
675
676 static void
677 l1_activate_u(struct FsmInst *fi, int event, void *arg)
678 {
679 struct PStack *st = fi->userdata;
680
681 st->l1.l1hw(st, HW_INFO1 | REQUEST, NULL);
682 }
683
684 static struct FsmNode L1UFnList[] __initdata =
685 {
686 {ST_L1_RESET, EV_DEACT_IND, l1_deact_req_u},
687 {ST_L1_DEACT, EV_DEACT_IND, l1_deact_req_u},
688 {ST_L1_SYNC2, EV_DEACT_IND, l1_deact_req_u},
689 {ST_L1_TRANS, EV_DEACT_IND, l1_deact_req_u},
690 {ST_L1_DEACT, EV_PH_ACTIVATE, l1_activate_u},
691 {ST_L1_DEACT, EV_POWER_UP, l1_power_up_u},
692 {ST_L1_DEACT, EV_INFO2_IND, l1_info2_ind},
693 {ST_L1_TRANS, EV_INFO2_IND, l1_info2_ind},
694 {ST_L1_RESET, EV_DEACT_CNF, l1_info0_ind},
695 {ST_L1_DEACT, EV_INFO4_IND, l1_info4_ind},
696 {ST_L1_SYNC2, EV_INFO4_IND, l1_info4_ind},
697 {ST_L1_RESET, EV_INFO4_IND, l1_info4_ind},
698 {ST_L1_DEACT, EV_TIMER3, l1_timer3},
699 {ST_L1_SYNC2, EV_TIMER3, l1_timer3},
700 {ST_L1_TRANS, EV_TIMER_ACT, l1_timer_act},
701 {ST_L1_DEACT, EV_TIMER_DEACT, l1_timer_deact},
702 {ST_L1_SYNC2, EV_TIMER_DEACT, l1_timer_deact},
703 {ST_L1_RESET, EV_TIMER_DEACT, l1_timer_deact},
704 };
705
706 #define L1U_FN_COUNT (sizeof(L1UFnList)/sizeof(struct FsmNode))
707
708 #endif
709
710 static void
711 l1b_activate(struct FsmInst *fi, int event, void *arg)
712 {
713 struct PStack *st = fi->userdata;
714
715 FsmChangeState(fi, ST_L1_WAIT_ACT);
716 FsmRestartTimer(&st->l1.timer, st->l1.delay, EV_TIMER_ACT, NULL, 2);
717 }
718
719 static void
720 l1b_deactivate(struct FsmInst *fi, int event, void *arg)
721 {
722 struct PStack *st = fi->userdata;
723
724 FsmChangeState(fi, ST_L1_WAIT_DEACT);
725 FsmRestartTimer(&st->l1.timer, 10, EV_TIMER_DEACT, NULL, 2);
726 }
727
728 static void
729 l1b_timer_act(struct FsmInst *fi, int event, void *arg)
730 {
731 struct PStack *st = fi->userdata;
732
733 FsmChangeState(fi, ST_L1_ACTIV);
734 st->l1.l1l2(st, PH_ACTIVATE | CONFIRM, NULL);
735 }
736
737 static void
738 l1b_timer_deact(struct FsmInst *fi, int event, void *arg)
739 {
740 struct PStack *st = fi->userdata;
741
742 FsmChangeState(fi, ST_L1_NULL);
743 st->l2.l2l1(st, PH_DEACTIVATE | CONFIRM, NULL);
744 }
745
746 static struct FsmNode L1BFnList[] __initdata =
747 {
748 {ST_L1_NULL, EV_PH_ACTIVATE, l1b_activate},
749 {ST_L1_WAIT_ACT, EV_TIMER_ACT, l1b_timer_act},
750 {ST_L1_ACTIV, EV_PH_DEACTIVATE, l1b_deactivate},
751 {ST_L1_WAIT_DEACT, EV_TIMER_DEACT, l1b_timer_deact},
752 };
753
754 #define L1B_FN_COUNT (sizeof(L1BFnList)/sizeof(struct FsmNode))
755
756 int __init
757 Isdnl1New(void)
758 {
759 int retval;
760
761 l1fsm_s.state_count = L1S_STATE_COUNT;
762 l1fsm_s.event_count = L1_EVENT_COUNT;
763 l1fsm_s.strEvent = strL1Event;
764 l1fsm_s.strState = strL1SState;
765 retval = FsmNew(&l1fsm_s, L1SFnList, L1S_FN_COUNT);
766 if (retval)
767 return retval;
768
769 l1fsm_b.state_count = L1B_STATE_COUNT;
770 l1fsm_b.event_count = L1_EVENT_COUNT;
771 l1fsm_b.strEvent = strL1Event;
772 l1fsm_b.strState = strL1BState;
773 retval = FsmNew(&l1fsm_b, L1BFnList, L1B_FN_COUNT);
774 if (retval) {
775 FsmFree(&l1fsm_s);
776 return retval;
777 }
778 #ifdef HISAX_UINTERFACE
779 l1fsm_u.state_count = L1U_STATE_COUNT;
780 l1fsm_u.event_count = L1_EVENT_COUNT;
781 l1fsm_u.strEvent = strL1Event;
782 l1fsm_u.strState = strL1UState;
783 retval = FsmNew(&l1fsm_u, L1UFnList, L1U_FN_COUNT);
784 if (retval) {
785 FsmFree(&l1fsm_s);
786 FsmFree(&l1fsm_b);
787 return retval;
788 }
789 #endif
790 return 0;
791 }
792
793 void Isdnl1Free(void)
794 {
795 #ifdef HISAX_UINTERFACE
796 FsmFree(&l1fsm_u);
797 #endif
798 FsmFree(&l1fsm_s);
799 FsmFree(&l1fsm_b);
800 }
801
802 static void
803 dch_l2l1(struct PStack *st, int pr, void *arg)
804 {
805 struct IsdnCardState *cs = (struct IsdnCardState *) st->l1.hardware;
806
807 switch (pr) {
808 case (PH_DATA | REQUEST):
809 case (PH_PULL | REQUEST):
810 case (PH_PULL |INDICATION):
811 st->l1.l1hw(st, pr, arg);
812 break;
813 case (PH_ACTIVATE | REQUEST):
814 if (cs->debug)
815 debugl1(cs, "PH_ACTIVATE_REQ %s",
816 st->l1.l1m.fsm->strState[st->l1.l1m.state]);
817 if (test_bit(FLG_L1_ACTIVATED, &st->l1.Flags))
818 st->l1.l1l2(st, PH_ACTIVATE | CONFIRM, NULL);
819 else {
820 test_and_set_bit(FLG_L1_ACTIVATING, &st->l1.Flags);
821 FsmEvent(&st->l1.l1m, EV_PH_ACTIVATE, arg);
822 }
823 break;
824 case (PH_TESTLOOP | REQUEST):
825 if (1 & (long) arg)
826 debugl1(cs, "PH_TEST_LOOP B1");
827 if (2 & (long) arg)
828 debugl1(cs, "PH_TEST_LOOP B2");
829 if (!(3 & (long) arg))
830 debugl1(cs, "PH_TEST_LOOP DISABLED");
831 st->l1.l1hw(st, HW_TESTLOOP | REQUEST, arg);
832 break;
833 default:
834 if (cs->debug)
835 debugl1(cs, "dch_l2l1 msg %04X unhandled", pr);
836 break;
837 }
838 }
839
840 void
841 l1_msg(struct IsdnCardState *cs, int pr, void *arg) {
842 struct PStack *st;
843
844 st = cs->stlist;
845
846 while (st) {
847 switch(pr) {
848 case (HW_RESET | INDICATION):
849 FsmEvent(&st->l1.l1m, EV_RESET_IND, arg);
850 break;
851 case (HW_DEACTIVATE | CONFIRM):
852 FsmEvent(&st->l1.l1m, EV_DEACT_CNF, arg);
853 break;
854 case (HW_DEACTIVATE | INDICATION):
855 FsmEvent(&st->l1.l1m, EV_DEACT_IND, arg);
856 break;
857 case (HW_POWERUP | CONFIRM):
858 FsmEvent(&st->l1.l1m, EV_POWER_UP, arg);
859 break;
860 case (HW_RSYNC | INDICATION):
861 FsmEvent(&st->l1.l1m, EV_RSYNC_IND, arg);
862 break;
863 case (HW_INFO2 | INDICATION):
864 FsmEvent(&st->l1.l1m, EV_INFO2_IND, arg);
865 break;
866 case (HW_INFO4_P8 | INDICATION):
867 case (HW_INFO4_P10 | INDICATION):
868 FsmEvent(&st->l1.l1m, EV_INFO4_IND, arg);
869 break;
870 default:
871 if (cs->debug)
872 debugl1(cs, "l1msg %04X unhandled", pr);
873 break;
874 }
875 st = st->next;
876 }
877 }
878
879 void
880 l1_msg_b(struct PStack *st, int pr, void *arg) {
881 switch(pr) {
882 case (PH_ACTIVATE | REQUEST):
883 FsmEvent(&st->l1.l1m, EV_PH_ACTIVATE, NULL);
884 break;
885 case (PH_DEACTIVATE | REQUEST):
886 FsmEvent(&st->l1.l1m, EV_PH_DEACTIVATE, NULL);
887 break;
888 }
889 }
890
891 void
892 setstack_HiSax(struct PStack *st, struct IsdnCardState *cs)
893 {
894 st->l1.hardware = cs;
895 st->protocol = cs->protocol;
896 st->l1.l1m.fsm = &l1fsm_s;
897 st->l1.l1m.state = ST_L1_F3;
898 st->l1.Flags = 0;
899 #ifdef HISAX_UINTERFACE
900 if (test_bit(FLG_HW_L1_UINT, &cs->HW_Flags)) {
901 st->l1.l1m.fsm = &l1fsm_u;
902 st->l1.l1m.state = ST_L1_RESET;
903 st->l1.Flags = FLG_L1_UINT;
904 }
905 #endif
906 st->l1.l1m.debug = cs->debug;
907 st->l1.l1m.userdata = st;
908 st->l1.l1m.userint = 0;
909 st->l1.l1m.printdebug = l1m_debug;
910 FsmInitTimer(&st->l1.l1m, &st->l1.timer);
911 setstack_tei(st);
912 setstack_manager(st);
913 st->l1.stlistp = &(cs->stlist);
914 st->l2.l2l1 = dch_l2l1;
915 if (cs->setstack_d)
916 cs->setstack_d(st, cs);
917 }
918
919 void
920 setstack_l1_B(struct PStack *st)
921 {
922 struct IsdnCardState *cs = st->l1.hardware;
923
924 st->l1.l1m.fsm = &l1fsm_b;
925 st->l1.l1m.state = ST_L1_NULL;
926 st->l1.l1m.debug = cs->debug;
927 st->l1.l1m.userdata = st;
928 st->l1.l1m.userint = 0;
929 st->l1.l1m.printdebug = l1m_debug;
930 st->l1.Flags = 0;
931 FsmInitTimer(&st->l1.l1m, &st->l1.timer);
932 }
Linux with added FPC-III support