WorkStruct: make allyesconfig
[linux-3.10.git] / drivers / isdn / hisax / isdnl1.c
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 static 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 static 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) &&
283                     skb_queue_empty(&bcs->squeue)) {
284                         st->l2.l2l1(st, PH_DEACTIVATE | CONFIRM, NULL);
285                 }
286         }
287 }
288
289 static void
290 BChannel_proc_rcv(struct BCState *bcs)
291 {
292         struct sk_buff *skb;
293
294         if (bcs->st->l1.l1m.state == ST_L1_WAIT_ACT) {
295                 FsmDelTimer(&bcs->st->l1.timer, 4);
296                 FsmEvent(&bcs->st->l1.l1m, EV_TIMER_ACT, NULL);
297         }
298         while ((skb = skb_dequeue(&bcs->rqueue))) {
299                 bcs->st->l1.l1l2(bcs->st, PH_DATA | INDICATION, skb);
300         }
301 }
302
303 static void
304 BChannel_proc_ack(struct BCState *bcs)
305 {
306         u_long  flags;
307         int     ack;
308
309         spin_lock_irqsave(&bcs->aclock, flags);
310         ack = bcs->ackcnt;
311         bcs->ackcnt = 0;
312         spin_unlock_irqrestore(&bcs->aclock, flags);
313         if (ack)
314                 lli_writewakeup(bcs->st, ack);
315 }
316
317 void
318 BChannel_bh(struct work_struct *work)
319 {
320         struct BCState *bcs = container_of(work, struct BCState, tqueue);
321
322         if (!bcs)
323                 return;
324         if (test_and_clear_bit(B_RCVBUFREADY, &bcs->event))
325                 BChannel_proc_rcv(bcs);
326         if (test_and_clear_bit(B_XMTBUFREADY, &bcs->event))
327                 BChannel_proc_xmt(bcs);
328         if (test_and_clear_bit(B_ACKPENDING, &bcs->event))
329                 BChannel_proc_ack(bcs);
330 }
331
332 void
333 HiSax_addlist(struct IsdnCardState *cs,
334               struct PStack *st)
335 {
336         st->next = cs->stlist;
337         cs->stlist = st;
338 }
339
340 void
341 HiSax_rmlist(struct IsdnCardState *cs,
342              struct PStack *st)
343 {
344         struct PStack *p;
345
346         FsmDelTimer(&st->l1.timer, 0);
347         if (cs->stlist == st)
348                 cs->stlist = st->next;
349         else {
350                 p = cs->stlist;
351                 while (p)
352                         if (p->next == st) {
353                                 p->next = st->next;
354                                 return;
355                         } else
356                                 p = p->next;
357         }
358 }
359
360 void
361 init_bcstate(struct IsdnCardState *cs, int bc)
362 {
363         struct BCState *bcs = cs->bcs + bc;
364
365         bcs->cs = cs;
366         bcs->channel = bc;
367         INIT_WORK(&bcs->tqueue, BChannel_bh);
368         spin_lock_init(&bcs->aclock);
369         bcs->BC_SetStack = NULL;
370         bcs->BC_Close = NULL;
371         bcs->Flag = 0;
372 }
373
374 #ifdef L2FRAME_DEBUG            /* psa */
375
376 static char *
377 l2cmd(u_char cmd)
378 {
379         switch (cmd & ~0x10) {
380                 case 1:
381                         return "RR";
382                 case 5:
383                         return "RNR";
384                 case 9:
385                         return "REJ";
386                 case 0x6f:
387                         return "SABME";
388                 case 0x0f:
389                         return "DM";
390                 case 3:
391                         return "UI";
392                 case 0x43:
393                         return "DISC";
394                 case 0x63:
395                         return "UA";
396                 case 0x87:
397                         return "FRMR";
398                 case 0xaf:
399                         return "XID";
400                 default:
401                         if (!(cmd & 1))
402                                 return "I";
403                         else
404                                 return "invalid command";
405         }
406 }
407
408 static char tmpdeb[32];
409
410 static char *
411 l2frames(u_char * ptr)
412 {
413         switch (ptr[2] & ~0x10) {
414                 case 1:
415                 case 5:
416                 case 9:
417                         sprintf(tmpdeb, "%s[%d](nr %d)", l2cmd(ptr[2]), ptr[3] & 1, ptr[3] >> 1);
418                         break;
419                 case 0x6f:
420                 case 0x0f:
421                 case 3:
422                 case 0x43:
423                 case 0x63:
424                 case 0x87:
425                 case 0xaf:
426                         sprintf(tmpdeb, "%s[%d]", l2cmd(ptr[2]), (ptr[2] & 0x10) >> 4);
427                         break;
428                 default:
429                         if (!(ptr[2] & 1)) {
430                                 sprintf(tmpdeb, "I[%d](ns %d, nr %d)", ptr[3] & 1, ptr[2] >> 1, ptr[3] >> 1);
431                                 break;
432                         } else
433                                 return "invalid command";
434         }
435
436
437         return tmpdeb;
438 }
439
440 void
441 Logl2Frame(struct IsdnCardState *cs, struct sk_buff *skb, char *buf, int dir)
442 {
443         u_char *ptr;
444
445         ptr = skb->data;
446
447         if (ptr[0] & 1 || !(ptr[1] & 1))
448                 debugl1(cs, "Address not LAPD");
449         else
450                 debugl1(cs, "%s %s: %s%c (sapi %d, tei %d)",
451                         (dir ? "<-" : "->"), buf, l2frames(ptr),
452                         ((ptr[0] & 2) >> 1) == dir ? 'C' : 'R', ptr[0] >> 2, ptr[1] >> 1);
453 }
454 #endif
455
456 static void
457 l1_reset(struct FsmInst *fi, int event, void *arg)
458 {
459         FsmChangeState(fi, ST_L1_F3);
460 }
461
462 static void
463 l1_deact_cnf(struct FsmInst *fi, int event, void *arg)
464 {
465         struct PStack *st = fi->userdata;
466
467         FsmChangeState(fi, ST_L1_F3);
468         if (test_bit(FLG_L1_ACTIVATING, &st->l1.Flags))
469                 st->l1.l1hw(st, HW_ENABLE | REQUEST, NULL);
470 }
471
472 static void
473 l1_deact_req_s(struct FsmInst *fi, int event, void *arg)
474 {
475         struct PStack *st = fi->userdata;
476
477         FsmChangeState(fi, ST_L1_F3);
478         FsmRestartTimer(&st->l1.timer, 550, EV_TIMER_DEACT, NULL, 2);
479         test_and_set_bit(FLG_L1_DEACTTIMER, &st->l1.Flags);
480 }
481
482 static void
483 l1_power_up_s(struct FsmInst *fi, int event, void *arg)
484 {
485         struct PStack *st = fi->userdata;
486
487         if (test_bit(FLG_L1_ACTIVATING, &st->l1.Flags)) {
488                 FsmChangeState(fi, ST_L1_F4);
489                 st->l1.l1hw(st, HW_INFO3 | REQUEST, NULL);
490                 FsmRestartTimer(&st->l1.timer, TIMER3_VALUE, EV_TIMER3, NULL, 2);
491                 test_and_set_bit(FLG_L1_T3RUN, &st->l1.Flags);
492         } else
493                 FsmChangeState(fi, ST_L1_F3);
494 }
495
496 static void
497 l1_go_F5(struct FsmInst *fi, int event, void *arg)
498 {
499         FsmChangeState(fi, ST_L1_F5);
500 }
501
502 static void
503 l1_go_F8(struct FsmInst *fi, int event, void *arg)
504 {
505         FsmChangeState(fi, ST_L1_F8);
506 }
507
508 static void
509 l1_info2_ind(struct FsmInst *fi, int event, void *arg)
510 {
511         struct PStack *st = fi->userdata;
512
513 #ifdef HISAX_UINTERFACE
514         if (test_bit(FLG_L1_UINT, &st->l1.Flags))
515                 FsmChangeState(fi, ST_L1_SYNC2);
516         else
517 #endif
518                 FsmChangeState(fi, ST_L1_F6);
519         st->l1.l1hw(st, HW_INFO3 | REQUEST, NULL);
520 }
521
522 static void
523 l1_info4_ind(struct FsmInst *fi, int event, void *arg)
524 {
525         struct PStack *st = fi->userdata;
526
527 #ifdef HISAX_UINTERFACE
528         if (test_bit(FLG_L1_UINT, &st->l1.Flags))
529                 FsmChangeState(fi, ST_L1_TRANS);
530         else
531 #endif
532                 FsmChangeState(fi, ST_L1_F7);
533         st->l1.l1hw(st, HW_INFO3 | REQUEST, NULL);
534         if (test_and_clear_bit(FLG_L1_DEACTTIMER, &st->l1.Flags))
535                 FsmDelTimer(&st->l1.timer, 4);
536         if (!test_bit(FLG_L1_ACTIVATED, &st->l1.Flags)) {
537                 if (test_and_clear_bit(FLG_L1_T3RUN, &st->l1.Flags))
538                         FsmDelTimer(&st->l1.timer, 3);
539                 FsmRestartTimer(&st->l1.timer, 110, EV_TIMER_ACT, NULL, 2);
540                 test_and_set_bit(FLG_L1_ACTTIMER, &st->l1.Flags);
541         }
542 }
543
544 static void
545 l1_timer3(struct FsmInst *fi, int event, void *arg)
546 {
547         struct PStack *st = fi->userdata;
548
549         test_and_clear_bit(FLG_L1_T3RUN, &st->l1.Flags);        
550         if (test_and_clear_bit(FLG_L1_ACTIVATING, &st->l1.Flags))
551                 L1deactivated(st->l1.hardware);
552
553 #ifdef HISAX_UINTERFACE
554         if (!test_bit(FLG_L1_UINT, &st->l1.Flags))
555 #endif
556         if (st->l1.l1m.state != ST_L1_F6) {
557                 FsmChangeState(fi, ST_L1_F3);
558                 st->l1.l1hw(st, HW_ENABLE | REQUEST, NULL);
559         }
560 }
561
562 static void
563 l1_timer_act(struct FsmInst *fi, int event, void *arg)
564 {
565         struct PStack *st = fi->userdata;
566         
567         test_and_clear_bit(FLG_L1_ACTTIMER, &st->l1.Flags);
568         test_and_set_bit(FLG_L1_ACTIVATED, &st->l1.Flags);
569         L1activated(st->l1.hardware);
570 }
571
572 static void
573 l1_timer_deact(struct FsmInst *fi, int event, void *arg)
574 {
575         struct PStack *st = fi->userdata;
576         
577         test_and_clear_bit(FLG_L1_DEACTTIMER, &st->l1.Flags);
578         test_and_clear_bit(FLG_L1_ACTIVATED, &st->l1.Flags);
579         L1deactivated(st->l1.hardware);
580         st->l1.l1hw(st, HW_DEACTIVATE | RESPONSE, NULL);
581 }
582
583 static void
584 l1_activate_s(struct FsmInst *fi, int event, void *arg)
585 {
586         struct PStack *st = fi->userdata;
587                 
588         st->l1.l1hw(st, HW_RESET | REQUEST, NULL);
589 }
590
591 static void
592 l1_activate_no(struct FsmInst *fi, int event, void *arg)
593 {
594         struct PStack *st = fi->userdata;
595
596         if ((!test_bit(FLG_L1_DEACTTIMER, &st->l1.Flags)) && (!test_bit(FLG_L1_T3RUN, &st->l1.Flags))) {
597                 test_and_clear_bit(FLG_L1_ACTIVATING, &st->l1.Flags);
598                 L1deactivated(st->l1.hardware);
599         }
600 }
601
602 static struct FsmNode L1SFnList[] __initdata =
603 {
604         {ST_L1_F3, EV_PH_ACTIVATE, l1_activate_s},
605         {ST_L1_F6, EV_PH_ACTIVATE, l1_activate_no},
606         {ST_L1_F8, EV_PH_ACTIVATE, l1_activate_no},
607         {ST_L1_F3, EV_RESET_IND, l1_reset},
608         {ST_L1_F4, EV_RESET_IND, l1_reset},
609         {ST_L1_F5, EV_RESET_IND, l1_reset},
610         {ST_L1_F6, EV_RESET_IND, l1_reset},
611         {ST_L1_F7, EV_RESET_IND, l1_reset},
612         {ST_L1_F8, EV_RESET_IND, l1_reset},
613         {ST_L1_F3, EV_DEACT_CNF, l1_deact_cnf},
614         {ST_L1_F4, EV_DEACT_CNF, l1_deact_cnf},
615         {ST_L1_F5, EV_DEACT_CNF, l1_deact_cnf},
616         {ST_L1_F6, EV_DEACT_CNF, l1_deact_cnf},
617         {ST_L1_F7, EV_DEACT_CNF, l1_deact_cnf},
618         {ST_L1_F8, EV_DEACT_CNF, l1_deact_cnf},
619         {ST_L1_F6, EV_DEACT_IND, l1_deact_req_s},
620         {ST_L1_F7, EV_DEACT_IND, l1_deact_req_s},
621         {ST_L1_F8, EV_DEACT_IND, l1_deact_req_s},
622         {ST_L1_F3, EV_POWER_UP, l1_power_up_s},
623         {ST_L1_F4, EV_RSYNC_IND, l1_go_F5},
624         {ST_L1_F6, EV_RSYNC_IND, l1_go_F8},
625         {ST_L1_F7, EV_RSYNC_IND, l1_go_F8},
626         {ST_L1_F3, EV_INFO2_IND, l1_info2_ind},
627         {ST_L1_F4, EV_INFO2_IND, l1_info2_ind},
628         {ST_L1_F5, EV_INFO2_IND, l1_info2_ind},
629         {ST_L1_F7, EV_INFO2_IND, l1_info2_ind},
630         {ST_L1_F8, EV_INFO2_IND, l1_info2_ind},
631         {ST_L1_F3, EV_INFO4_IND, l1_info4_ind},
632         {ST_L1_F4, EV_INFO4_IND, l1_info4_ind},
633         {ST_L1_F5, EV_INFO4_IND, l1_info4_ind},
634         {ST_L1_F6, EV_INFO4_IND, l1_info4_ind},
635         {ST_L1_F8, EV_INFO4_IND, l1_info4_ind},
636         {ST_L1_F3, EV_TIMER3, l1_timer3},
637         {ST_L1_F4, EV_TIMER3, l1_timer3},
638         {ST_L1_F5, EV_TIMER3, l1_timer3},
639         {ST_L1_F6, EV_TIMER3, l1_timer3},
640         {ST_L1_F8, EV_TIMER3, l1_timer3},
641         {ST_L1_F7, EV_TIMER_ACT, l1_timer_act},
642         {ST_L1_F3, EV_TIMER_DEACT, l1_timer_deact},
643         {ST_L1_F4, EV_TIMER_DEACT, l1_timer_deact},
644         {ST_L1_F5, EV_TIMER_DEACT, l1_timer_deact},
645         {ST_L1_F6, EV_TIMER_DEACT, l1_timer_deact},
646         {ST_L1_F7, EV_TIMER_DEACT, l1_timer_deact},
647         {ST_L1_F8, EV_TIMER_DEACT, l1_timer_deact},
648 };
649
650 #define L1S_FN_COUNT (sizeof(L1SFnList)/sizeof(struct FsmNode))
651
652 #ifdef HISAX_UINTERFACE
653 static void
654 l1_deact_req_u(struct FsmInst *fi, int event, void *arg)
655 {
656         struct PStack *st = fi->userdata;
657
658         FsmChangeState(fi, ST_L1_RESET);
659         FsmRestartTimer(&st->l1.timer, 550, EV_TIMER_DEACT, NULL, 2);
660         test_and_set_bit(FLG_L1_DEACTTIMER, &st->l1.Flags);
661         st->l1.l1hw(st, HW_ENABLE | REQUEST, NULL);
662 }
663
664 static void
665 l1_power_up_u(struct FsmInst *fi, int event, void *arg)
666 {
667         struct PStack *st = fi->userdata;
668
669         FsmRestartTimer(&st->l1.timer, TIMER3_VALUE, EV_TIMER3, NULL, 2);
670         test_and_set_bit(FLG_L1_T3RUN, &st->l1.Flags);
671 }
672
673 static void
674 l1_info0_ind(struct FsmInst *fi, int event, void *arg)
675 {
676         FsmChangeState(fi, ST_L1_DEACT);
677 }
678
679 static void
680 l1_activate_u(struct FsmInst *fi, int event, void *arg)
681 {
682         struct PStack *st = fi->userdata;
683                 
684         st->l1.l1hw(st, HW_INFO1 | REQUEST, NULL);
685 }
686
687 static struct FsmNode L1UFnList[] __initdata =
688 {
689         {ST_L1_RESET, EV_DEACT_IND, l1_deact_req_u},
690         {ST_L1_DEACT, EV_DEACT_IND, l1_deact_req_u},
691         {ST_L1_SYNC2, EV_DEACT_IND, l1_deact_req_u},
692         {ST_L1_TRANS, EV_DEACT_IND, l1_deact_req_u},
693         {ST_L1_DEACT, EV_PH_ACTIVATE, l1_activate_u},
694         {ST_L1_DEACT, EV_POWER_UP, l1_power_up_u},
695         {ST_L1_DEACT, EV_INFO2_IND, l1_info2_ind},
696         {ST_L1_TRANS, EV_INFO2_IND, l1_info2_ind},
697         {ST_L1_RESET, EV_DEACT_CNF, l1_info0_ind},
698         {ST_L1_DEACT, EV_INFO4_IND, l1_info4_ind},
699         {ST_L1_SYNC2, EV_INFO4_IND, l1_info4_ind},
700         {ST_L1_RESET, EV_INFO4_IND, l1_info4_ind},
701         {ST_L1_DEACT, EV_TIMER3, l1_timer3},
702         {ST_L1_SYNC2, EV_TIMER3, l1_timer3},
703         {ST_L1_TRANS, EV_TIMER_ACT, l1_timer_act},
704         {ST_L1_DEACT, EV_TIMER_DEACT, l1_timer_deact},
705         {ST_L1_SYNC2, EV_TIMER_DEACT, l1_timer_deact},
706         {ST_L1_RESET, EV_TIMER_DEACT, l1_timer_deact},
707 };
708
709 #define L1U_FN_COUNT (sizeof(L1UFnList)/sizeof(struct FsmNode))
710
711 #endif
712
713 static void
714 l1b_activate(struct FsmInst *fi, int event, void *arg)
715 {
716         struct PStack *st = fi->userdata;
717
718         FsmChangeState(fi, ST_L1_WAIT_ACT);
719         FsmRestartTimer(&st->l1.timer, st->l1.delay, EV_TIMER_ACT, NULL, 2);
720 }
721
722 static void
723 l1b_deactivate(struct FsmInst *fi, int event, void *arg)
724 {
725         struct PStack *st = fi->userdata;
726
727         FsmChangeState(fi, ST_L1_WAIT_DEACT);
728         FsmRestartTimer(&st->l1.timer, 10, EV_TIMER_DEACT, NULL, 2);
729 }
730
731 static void
732 l1b_timer_act(struct FsmInst *fi, int event, void *arg)
733 {
734         struct PStack *st = fi->userdata;
735
736         FsmChangeState(fi, ST_L1_ACTIV);
737         st->l1.l1l2(st, PH_ACTIVATE | CONFIRM, NULL);
738 }
739
740 static void
741 l1b_timer_deact(struct FsmInst *fi, int event, void *arg)
742 {
743         struct PStack *st = fi->userdata;
744
745         FsmChangeState(fi, ST_L1_NULL);
746         st->l2.l2l1(st, PH_DEACTIVATE | CONFIRM, NULL);
747 }
748
749 static struct FsmNode L1BFnList[] __initdata =
750 {
751         {ST_L1_NULL, EV_PH_ACTIVATE, l1b_activate},
752         {ST_L1_WAIT_ACT, EV_TIMER_ACT, l1b_timer_act},
753         {ST_L1_ACTIV, EV_PH_DEACTIVATE, l1b_deactivate},
754         {ST_L1_WAIT_DEACT, EV_TIMER_DEACT, l1b_timer_deact},
755 };
756
757 #define L1B_FN_COUNT (sizeof(L1BFnList)/sizeof(struct FsmNode))
758
759 int __init 
760 Isdnl1New(void)
761 {
762         int retval;
763
764         l1fsm_s.state_count = L1S_STATE_COUNT;
765         l1fsm_s.event_count = L1_EVENT_COUNT;
766         l1fsm_s.strEvent = strL1Event;
767         l1fsm_s.strState = strL1SState;
768         retval = FsmNew(&l1fsm_s, L1SFnList, L1S_FN_COUNT);
769         if (retval)
770                 return retval;
771
772         l1fsm_b.state_count = L1B_STATE_COUNT;
773         l1fsm_b.event_count = L1_EVENT_COUNT;
774         l1fsm_b.strEvent = strL1Event;
775         l1fsm_b.strState = strL1BState;
776         retval = FsmNew(&l1fsm_b, L1BFnList, L1B_FN_COUNT);
777         if (retval) {
778                 FsmFree(&l1fsm_s);
779                 return retval;
780         }
781 #ifdef HISAX_UINTERFACE
782         l1fsm_u.state_count = L1U_STATE_COUNT;
783         l1fsm_u.event_count = L1_EVENT_COUNT;
784         l1fsm_u.strEvent = strL1Event;
785         l1fsm_u.strState = strL1UState;
786         retval = FsmNew(&l1fsm_u, L1UFnList, L1U_FN_COUNT);
787         if (retval) {
788                 FsmFree(&l1fsm_s);
789                 FsmFree(&l1fsm_b);
790                 return retval;
791         }
792 #endif
793         return 0;
794 }
795
796 void Isdnl1Free(void)
797 {
798 #ifdef HISAX_UINTERFACE
799         FsmFree(&l1fsm_u);
800 #endif
801         FsmFree(&l1fsm_s);
802         FsmFree(&l1fsm_b);
803 }
804
805 static void
806 dch_l2l1(struct PStack *st, int pr, void *arg)
807 {
808         struct IsdnCardState *cs = (struct IsdnCardState *) st->l1.hardware;
809
810         switch (pr) {
811                 case (PH_DATA | REQUEST):
812                 case (PH_PULL | REQUEST):
813                 case (PH_PULL |INDICATION):
814                         st->l1.l1hw(st, pr, arg);
815                         break;
816                 case (PH_ACTIVATE | REQUEST):
817                         if (cs->debug)
818                                 debugl1(cs, "PH_ACTIVATE_REQ %s",
819                                         st->l1.l1m.fsm->strState[st->l1.l1m.state]);
820                         if (test_bit(FLG_L1_ACTIVATED, &st->l1.Flags))
821                                 st->l1.l1l2(st, PH_ACTIVATE | CONFIRM, NULL);
822                         else {
823                                 test_and_set_bit(FLG_L1_ACTIVATING, &st->l1.Flags);
824                                 FsmEvent(&st->l1.l1m, EV_PH_ACTIVATE, arg);
825                         }
826                         break;
827                 case (PH_TESTLOOP | REQUEST):
828                         if (1 & (long) arg)
829                                 debugl1(cs, "PH_TEST_LOOP B1");
830                         if (2 & (long) arg)
831                                 debugl1(cs, "PH_TEST_LOOP B2");
832                         if (!(3 & (long) arg))
833                                 debugl1(cs, "PH_TEST_LOOP DISABLED");
834                         st->l1.l1hw(st, HW_TESTLOOP | REQUEST, arg);
835                         break;
836                 default:
837                         if (cs->debug)
838                                 debugl1(cs, "dch_l2l1 msg %04X unhandled", pr);
839                         break;
840         }
841 }
842
843 void
844 l1_msg(struct IsdnCardState *cs, int pr, void *arg) {
845         struct PStack *st;
846
847         st = cs->stlist;
848         
849         while (st) {
850                 switch(pr) {
851                         case (HW_RESET | INDICATION):
852                                 FsmEvent(&st->l1.l1m, EV_RESET_IND, arg);
853                                 break;
854                         case (HW_DEACTIVATE | CONFIRM):
855                                 FsmEvent(&st->l1.l1m, EV_DEACT_CNF, arg);
856                                 break;
857                         case (HW_DEACTIVATE | INDICATION):
858                                 FsmEvent(&st->l1.l1m, EV_DEACT_IND, arg);
859                                 break;
860                         case (HW_POWERUP | CONFIRM):
861                                 FsmEvent(&st->l1.l1m, EV_POWER_UP, arg);
862                                 break;
863                         case (HW_RSYNC | INDICATION):
864                                 FsmEvent(&st->l1.l1m, EV_RSYNC_IND, arg);
865                                 break;
866                         case (HW_INFO2 | INDICATION):
867                                 FsmEvent(&st->l1.l1m, EV_INFO2_IND, arg);
868                                 break;
869                         case (HW_INFO4_P8 | INDICATION):
870                         case (HW_INFO4_P10 | INDICATION):
871                                 FsmEvent(&st->l1.l1m, EV_INFO4_IND, arg);
872                                 break;
873                         default:
874                                 if (cs->debug)
875                                         debugl1(cs, "l1msg %04X unhandled", pr);
876                                 break;
877                 }
878                 st = st->next;
879         }
880 }
881
882 void
883 l1_msg_b(struct PStack *st, int pr, void *arg) {
884         switch(pr) {
885                 case (PH_ACTIVATE | REQUEST):
886                         FsmEvent(&st->l1.l1m, EV_PH_ACTIVATE, NULL);
887                         break;
888                 case (PH_DEACTIVATE | REQUEST):
889                         FsmEvent(&st->l1.l1m, EV_PH_DEACTIVATE, NULL);
890                         break;
891         }
892 }
893
894 void
895 setstack_HiSax(struct PStack *st, struct IsdnCardState *cs)
896 {
897         st->l1.hardware = cs;
898         st->protocol = cs->protocol;
899         st->l1.l1m.fsm = &l1fsm_s;
900         st->l1.l1m.state = ST_L1_F3;
901         st->l1.Flags = 0;
902 #ifdef HISAX_UINTERFACE
903         if (test_bit(FLG_HW_L1_UINT, &cs->HW_Flags)) {
904                 st->l1.l1m.fsm = &l1fsm_u;
905                 st->l1.l1m.state = ST_L1_RESET;
906                 st->l1.Flags = FLG_L1_UINT;
907         }
908 #endif
909         st->l1.l1m.debug = cs->debug;
910         st->l1.l1m.userdata = st;
911         st->l1.l1m.userint = 0;
912         st->l1.l1m.printdebug = l1m_debug;
913         FsmInitTimer(&st->l1.l1m, &st->l1.timer);
914         setstack_tei(st);
915         setstack_manager(st);
916         st->l1.stlistp = &(cs->stlist);
917         st->l2.l2l1  = dch_l2l1;
918         if (cs->setstack_d)
919                 cs->setstack_d(st, cs);
920 }
921
922 void
923 setstack_l1_B(struct PStack *st)
924 {
925         struct IsdnCardState *cs = st->l1.hardware;
926
927         st->l1.l1m.fsm = &l1fsm_b;
928         st->l1.l1m.state = ST_L1_NULL;
929         st->l1.l1m.debug = cs->debug;
930         st->l1.l1m.userdata = st;
931         st->l1.l1m.userint = 0;
932         st->l1.l1m.printdebug = l1m_debug;
933         st->l1.Flags = 0;
934         FsmInitTimer(&st->l1.l1m, &st->l1.timer);
935 }