bab356886483e257b7c718e4bde5fe6c7e3ae9f7
[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 BCState *bcs)
319 {
320         if (!bcs)
321                 return;
322         if (test_and_clear_bit(B_RCVBUFREADY, &bcs->event))
323                 BChannel_proc_rcv(bcs);
324         if (test_and_clear_bit(B_XMTBUFREADY, &bcs->event))
325                 BChannel_proc_xmt(bcs);
326         if (test_and_clear_bit(B_ACKPENDING, &bcs->event))
327                 BChannel_proc_ack(bcs);
328 }
329
330 void
331 HiSax_addlist(struct IsdnCardState *cs,
332               struct PStack *st)
333 {
334         st->next = cs->stlist;
335         cs->stlist = st;
336 }
337
338 void
339 HiSax_rmlist(struct IsdnCardState *cs,
340              struct PStack *st)
341 {
342         struct PStack *p;
343
344         FsmDelTimer(&st->l1.timer, 0);
345         if (cs->stlist == st)
346                 cs->stlist = st->next;
347         else {
348                 p = cs->stlist;
349                 while (p)
350                         if (p->next == st) {
351                                 p->next = st->next;
352                                 return;
353                         } else
354                                 p = p->next;
355         }
356 }
357
358 void
359 init_bcstate(struct IsdnCardState *cs, int bc)
360 {
361         struct BCState *bcs = cs->bcs + bc;
362
363         bcs->cs = cs;
364         bcs->channel = bc;
365         INIT_WORK(&bcs->tqueue, (void *)(void *) BChannel_bh, bcs);
366         spin_lock_init(&bcs->aclock);
367         bcs->BC_SetStack = NULL;
368         bcs->BC_Close = NULL;
369         bcs->Flag = 0;
370 }
371
372 #ifdef L2FRAME_DEBUG            /* psa */
373
374 static char *
375 l2cmd(u_char cmd)
376 {
377         switch (cmd & ~0x10) {
378                 case 1:
379                         return "RR";
380                 case 5:
381                         return "RNR";
382                 case 9:
383                         return "REJ";
384                 case 0x6f:
385                         return "SABME";
386                 case 0x0f:
387                         return "DM";
388                 case 3:
389                         return "UI";
390                 case 0x43:
391                         return "DISC";
392                 case 0x63:
393                         return "UA";
394                 case 0x87:
395                         return "FRMR";
396                 case 0xaf:
397                         return "XID";
398                 default:
399                         if (!(cmd & 1))
400                                 return "I";
401                         else
402                                 return "invalid command";
403         }
404 }
405
406 static char tmpdeb[32];
407
408 static char *
409 l2frames(u_char * ptr)
410 {
411         switch (ptr[2] & ~0x10) {
412                 case 1:
413                 case 5:
414                 case 9:
415                         sprintf(tmpdeb, "%s[%d](nr %d)", l2cmd(ptr[2]), ptr[3] & 1, ptr[3] >> 1);
416                         break;
417                 case 0x6f:
418                 case 0x0f:
419                 case 3:
420                 case 0x43:
421                 case 0x63:
422                 case 0x87:
423                 case 0xaf:
424                         sprintf(tmpdeb, "%s[%d]", l2cmd(ptr[2]), (ptr[2] & 0x10) >> 4);
425                         break;
426                 default:
427                         if (!(ptr[2] & 1)) {
428                                 sprintf(tmpdeb, "I[%d](ns %d, nr %d)", ptr[3] & 1, ptr[2] >> 1, ptr[3] >> 1);
429                                 break;
430                         } else
431                                 return "invalid command";
432         }
433
434
435         return tmpdeb;
436 }
437
438 void
439 Logl2Frame(struct IsdnCardState *cs, struct sk_buff *skb, char *buf, int dir)
440 {
441         u_char *ptr;
442
443         ptr = skb->data;
444
445         if (ptr[0] & 1 || !(ptr[1] & 1))
446                 debugl1(cs, "Address not LAPD");
447         else
448                 debugl1(cs, "%s %s: %s%c (sapi %d, tei %d)",
449                         (dir ? "<-" : "->"), buf, l2frames(ptr),
450                         ((ptr[0] & 2) >> 1) == dir ? 'C' : 'R', ptr[0] >> 2, ptr[1] >> 1);
451 }
452 #endif
453
454 static void
455 l1_reset(struct FsmInst *fi, int event, void *arg)
456 {
457         FsmChangeState(fi, ST_L1_F3);
458 }
459
460 static void
461 l1_deact_cnf(struct FsmInst *fi, int event, void *arg)
462 {
463         struct PStack *st = fi->userdata;
464
465         FsmChangeState(fi, ST_L1_F3);
466         if (test_bit(FLG_L1_ACTIVATING, &st->l1.Flags))
467                 st->l1.l1hw(st, HW_ENABLE | REQUEST, NULL);
468 }
469
470 static void
471 l1_deact_req_s(struct FsmInst *fi, int event, void *arg)
472 {
473         struct PStack *st = fi->userdata;
474
475         FsmChangeState(fi, ST_L1_F3);
476         FsmRestartTimer(&st->l1.timer, 550, EV_TIMER_DEACT, NULL, 2);
477         test_and_set_bit(FLG_L1_DEACTTIMER, &st->l1.Flags);
478 }
479
480 static void
481 l1_power_up_s(struct FsmInst *fi, int event, void *arg)
482 {
483         struct PStack *st = fi->userdata;
484
485         if (test_bit(FLG_L1_ACTIVATING, &st->l1.Flags)) {
486                 FsmChangeState(fi, ST_L1_F4);
487                 st->l1.l1hw(st, HW_INFO3 | REQUEST, NULL);
488                 FsmRestartTimer(&st->l1.timer, TIMER3_VALUE, EV_TIMER3, NULL, 2);
489                 test_and_set_bit(FLG_L1_T3RUN, &st->l1.Flags);
490         } else
491                 FsmChangeState(fi, ST_L1_F3);
492 }
493
494 static void
495 l1_go_F5(struct FsmInst *fi, int event, void *arg)
496 {
497         FsmChangeState(fi, ST_L1_F5);
498 }
499
500 static void
501 l1_go_F8(struct FsmInst *fi, int event, void *arg)
502 {
503         FsmChangeState(fi, ST_L1_F8);
504 }
505
506 static void
507 l1_info2_ind(struct FsmInst *fi, int event, void *arg)
508 {
509         struct PStack *st = fi->userdata;
510
511 #ifdef HISAX_UINTERFACE
512         if (test_bit(FLG_L1_UINT, &st->l1.Flags))
513                 FsmChangeState(fi, ST_L1_SYNC2);
514         else
515 #endif
516                 FsmChangeState(fi, ST_L1_F6);
517         st->l1.l1hw(st, HW_INFO3 | REQUEST, NULL);
518 }
519
520 static void
521 l1_info4_ind(struct FsmInst *fi, int event, void *arg)
522 {
523         struct PStack *st = fi->userdata;
524
525 #ifdef HISAX_UINTERFACE
526         if (test_bit(FLG_L1_UINT, &st->l1.Flags))
527                 FsmChangeState(fi, ST_L1_TRANS);
528         else
529 #endif
530                 FsmChangeState(fi, ST_L1_F7);
531         st->l1.l1hw(st, HW_INFO3 | REQUEST, NULL);
532         if (test_and_clear_bit(FLG_L1_DEACTTIMER, &st->l1.Flags))
533                 FsmDelTimer(&st->l1.timer, 4);
534         if (!test_bit(FLG_L1_ACTIVATED, &st->l1.Flags)) {
535                 if (test_and_clear_bit(FLG_L1_T3RUN, &st->l1.Flags))
536                         FsmDelTimer(&st->l1.timer, 3);
537                 FsmRestartTimer(&st->l1.timer, 110, EV_TIMER_ACT, NULL, 2);
538                 test_and_set_bit(FLG_L1_ACTTIMER, &st->l1.Flags);
539         }
540 }
541
542 static void
543 l1_timer3(struct FsmInst *fi, int event, void *arg)
544 {
545         struct PStack *st = fi->userdata;
546
547         test_and_clear_bit(FLG_L1_T3RUN, &st->l1.Flags);        
548         if (test_and_clear_bit(FLG_L1_ACTIVATING, &st->l1.Flags))
549                 L1deactivated(st->l1.hardware);
550
551 #ifdef HISAX_UINTERFACE
552         if (!test_bit(FLG_L1_UINT, &st->l1.Flags))
553 #endif
554         if (st->l1.l1m.state != ST_L1_F6) {
555                 FsmChangeState(fi, ST_L1_F3);
556                 st->l1.l1hw(st, HW_ENABLE | REQUEST, NULL);
557         }
558 }
559
560 static void
561 l1_timer_act(struct FsmInst *fi, int event, void *arg)
562 {
563         struct PStack *st = fi->userdata;
564         
565         test_and_clear_bit(FLG_L1_ACTTIMER, &st->l1.Flags);
566         test_and_set_bit(FLG_L1_ACTIVATED, &st->l1.Flags);
567         L1activated(st->l1.hardware);
568 }
569
570 static void
571 l1_timer_deact(struct FsmInst *fi, int event, void *arg)
572 {
573         struct PStack *st = fi->userdata;
574         
575         test_and_clear_bit(FLG_L1_DEACTTIMER, &st->l1.Flags);
576         test_and_clear_bit(FLG_L1_ACTIVATED, &st->l1.Flags);
577         L1deactivated(st->l1.hardware);
578         st->l1.l1hw(st, HW_DEACTIVATE | RESPONSE, NULL);
579 }
580
581 static void
582 l1_activate_s(struct FsmInst *fi, int event, void *arg)
583 {
584         struct PStack *st = fi->userdata;
585                 
586         st->l1.l1hw(st, HW_RESET | REQUEST, NULL);
587 }
588
589 static void
590 l1_activate_no(struct FsmInst *fi, int event, void *arg)
591 {
592         struct PStack *st = fi->userdata;
593
594         if ((!test_bit(FLG_L1_DEACTTIMER, &st->l1.Flags)) && (!test_bit(FLG_L1_T3RUN, &st->l1.Flags))) {
595                 test_and_clear_bit(FLG_L1_ACTIVATING, &st->l1.Flags);
596                 L1deactivated(st->l1.hardware);
597         }
598 }
599
600 static struct FsmNode L1SFnList[] __initdata =
601 {
602         {ST_L1_F3, EV_PH_ACTIVATE, l1_activate_s},
603         {ST_L1_F6, EV_PH_ACTIVATE, l1_activate_no},
604         {ST_L1_F8, EV_PH_ACTIVATE, l1_activate_no},
605         {ST_L1_F3, EV_RESET_IND, l1_reset},
606         {ST_L1_F4, EV_RESET_IND, l1_reset},
607         {ST_L1_F5, EV_RESET_IND, l1_reset},
608         {ST_L1_F6, EV_RESET_IND, l1_reset},
609         {ST_L1_F7, EV_RESET_IND, l1_reset},
610         {ST_L1_F8, EV_RESET_IND, l1_reset},
611         {ST_L1_F3, EV_DEACT_CNF, l1_deact_cnf},
612         {ST_L1_F4, EV_DEACT_CNF, l1_deact_cnf},
613         {ST_L1_F5, EV_DEACT_CNF, l1_deact_cnf},
614         {ST_L1_F6, EV_DEACT_CNF, l1_deact_cnf},
615         {ST_L1_F7, EV_DEACT_CNF, l1_deact_cnf},
616         {ST_L1_F8, EV_DEACT_CNF, l1_deact_cnf},
617         {ST_L1_F6, EV_DEACT_IND, l1_deact_req_s},
618         {ST_L1_F7, EV_DEACT_IND, l1_deact_req_s},
619         {ST_L1_F8, EV_DEACT_IND, l1_deact_req_s},
620         {ST_L1_F3, EV_POWER_UP, l1_power_up_s},
621         {ST_L1_F4, EV_RSYNC_IND, l1_go_F5},
622         {ST_L1_F6, EV_RSYNC_IND, l1_go_F8},
623         {ST_L1_F7, EV_RSYNC_IND, l1_go_F8},
624         {ST_L1_F3, EV_INFO2_IND, l1_info2_ind},
625         {ST_L1_F4, EV_INFO2_IND, l1_info2_ind},
626         {ST_L1_F5, EV_INFO2_IND, l1_info2_ind},
627         {ST_L1_F7, EV_INFO2_IND, l1_info2_ind},
628         {ST_L1_F8, EV_INFO2_IND, l1_info2_ind},
629         {ST_L1_F3, EV_INFO4_IND, l1_info4_ind},
630         {ST_L1_F4, EV_INFO4_IND, l1_info4_ind},
631         {ST_L1_F5, EV_INFO4_IND, l1_info4_ind},
632         {ST_L1_F6, EV_INFO4_IND, l1_info4_ind},
633         {ST_L1_F8, EV_INFO4_IND, l1_info4_ind},
634         {ST_L1_F3, EV_TIMER3, l1_timer3},
635         {ST_L1_F4, EV_TIMER3, l1_timer3},
636         {ST_L1_F5, EV_TIMER3, l1_timer3},
637         {ST_L1_F6, EV_TIMER3, l1_timer3},
638         {ST_L1_F8, EV_TIMER3, l1_timer3},
639         {ST_L1_F7, EV_TIMER_ACT, l1_timer_act},
640         {ST_L1_F3, EV_TIMER_DEACT, l1_timer_deact},
641         {ST_L1_F4, EV_TIMER_DEACT, l1_timer_deact},
642         {ST_L1_F5, EV_TIMER_DEACT, l1_timer_deact},
643         {ST_L1_F6, EV_TIMER_DEACT, l1_timer_deact},
644         {ST_L1_F7, EV_TIMER_DEACT, l1_timer_deact},
645         {ST_L1_F8, EV_TIMER_DEACT, l1_timer_deact},
646 };
647
648 #define L1S_FN_COUNT (sizeof(L1SFnList)/sizeof(struct FsmNode))
649
650 #ifdef HISAX_UINTERFACE
651 static void
652 l1_deact_req_u(struct FsmInst *fi, int event, void *arg)
653 {
654         struct PStack *st = fi->userdata;
655
656         FsmChangeState(fi, ST_L1_RESET);
657         FsmRestartTimer(&st->l1.timer, 550, EV_TIMER_DEACT, NULL, 2);
658         test_and_set_bit(FLG_L1_DEACTTIMER, &st->l1.Flags);
659         st->l1.l1hw(st, HW_ENABLE | REQUEST, NULL);
660 }
661
662 static void
663 l1_power_up_u(struct FsmInst *fi, int event, void *arg)
664 {
665         struct PStack *st = fi->userdata;
666
667         FsmRestartTimer(&st->l1.timer, TIMER3_VALUE, EV_TIMER3, NULL, 2);
668         test_and_set_bit(FLG_L1_T3RUN, &st->l1.Flags);
669 }
670
671 static void
672 l1_info0_ind(struct FsmInst *fi, int event, void *arg)
673 {
674         FsmChangeState(fi, ST_L1_DEACT);
675 }
676
677 static void
678 l1_activate_u(struct FsmInst *fi, int event, void *arg)
679 {
680         struct PStack *st = fi->userdata;
681                 
682         st->l1.l1hw(st, HW_INFO1 | REQUEST, NULL);
683 }
684
685 static struct FsmNode L1UFnList[] __initdata =
686 {
687         {ST_L1_RESET, EV_DEACT_IND, l1_deact_req_u},
688         {ST_L1_DEACT, EV_DEACT_IND, l1_deact_req_u},
689         {ST_L1_SYNC2, EV_DEACT_IND, l1_deact_req_u},
690         {ST_L1_TRANS, EV_DEACT_IND, l1_deact_req_u},
691         {ST_L1_DEACT, EV_PH_ACTIVATE, l1_activate_u},
692         {ST_L1_DEACT, EV_POWER_UP, l1_power_up_u},
693         {ST_L1_DEACT, EV_INFO2_IND, l1_info2_ind},
694         {ST_L1_TRANS, EV_INFO2_IND, l1_info2_ind},
695         {ST_L1_RESET, EV_DEACT_CNF, l1_info0_ind},
696         {ST_L1_DEACT, EV_INFO4_IND, l1_info4_ind},
697         {ST_L1_SYNC2, EV_INFO4_IND, l1_info4_ind},
698         {ST_L1_RESET, EV_INFO4_IND, l1_info4_ind},
699         {ST_L1_DEACT, EV_TIMER3, l1_timer3},
700         {ST_L1_SYNC2, EV_TIMER3, l1_timer3},
701         {ST_L1_TRANS, EV_TIMER_ACT, l1_timer_act},
702         {ST_L1_DEACT, EV_TIMER_DEACT, l1_timer_deact},
703         {ST_L1_SYNC2, EV_TIMER_DEACT, l1_timer_deact},
704         {ST_L1_RESET, EV_TIMER_DEACT, l1_timer_deact},
705 };
706
707 #define L1U_FN_COUNT (sizeof(L1UFnList)/sizeof(struct FsmNode))
708
709 #endif
710
711 static void
712 l1b_activate(struct FsmInst *fi, int event, void *arg)
713 {
714         struct PStack *st = fi->userdata;
715
716         FsmChangeState(fi, ST_L1_WAIT_ACT);
717         FsmRestartTimer(&st->l1.timer, st->l1.delay, EV_TIMER_ACT, NULL, 2);
718 }
719
720 static void
721 l1b_deactivate(struct FsmInst *fi, int event, void *arg)
722 {
723         struct PStack *st = fi->userdata;
724
725         FsmChangeState(fi, ST_L1_WAIT_DEACT);
726         FsmRestartTimer(&st->l1.timer, 10, EV_TIMER_DEACT, NULL, 2);
727 }
728
729 static void
730 l1b_timer_act(struct FsmInst *fi, int event, void *arg)
731 {
732         struct PStack *st = fi->userdata;
733
734         FsmChangeState(fi, ST_L1_ACTIV);
735         st->l1.l1l2(st, PH_ACTIVATE | CONFIRM, NULL);
736 }
737
738 static void
739 l1b_timer_deact(struct FsmInst *fi, int event, void *arg)
740 {
741         struct PStack *st = fi->userdata;
742
743         FsmChangeState(fi, ST_L1_NULL);
744         st->l2.l2l1(st, PH_DEACTIVATE | CONFIRM, NULL);
745 }
746
747 static struct FsmNode L1BFnList[] __initdata =
748 {
749         {ST_L1_NULL, EV_PH_ACTIVATE, l1b_activate},
750         {ST_L1_WAIT_ACT, EV_TIMER_ACT, l1b_timer_act},
751         {ST_L1_ACTIV, EV_PH_DEACTIVATE, l1b_deactivate},
752         {ST_L1_WAIT_DEACT, EV_TIMER_DEACT, l1b_timer_deact},
753 };
754
755 #define L1B_FN_COUNT (sizeof(L1BFnList)/sizeof(struct FsmNode))
756
757 int __init 
758 Isdnl1New(void)
759 {
760         int retval;
761
762         l1fsm_s.state_count = L1S_STATE_COUNT;
763         l1fsm_s.event_count = L1_EVENT_COUNT;
764         l1fsm_s.strEvent = strL1Event;
765         l1fsm_s.strState = strL1SState;
766         retval = FsmNew(&l1fsm_s, L1SFnList, L1S_FN_COUNT);
767         if (retval)
768                 return retval;
769
770         l1fsm_b.state_count = L1B_STATE_COUNT;
771         l1fsm_b.event_count = L1_EVENT_COUNT;
772         l1fsm_b.strEvent = strL1Event;
773         l1fsm_b.strState = strL1BState;
774         retval = FsmNew(&l1fsm_b, L1BFnList, L1B_FN_COUNT);
775         if (retval) {
776                 FsmFree(&l1fsm_s);
777                 return retval;
778         }
779 #ifdef HISAX_UINTERFACE
780         l1fsm_u.state_count = L1U_STATE_COUNT;
781         l1fsm_u.event_count = L1_EVENT_COUNT;
782         l1fsm_u.strEvent = strL1Event;
783         l1fsm_u.strState = strL1UState;
784         retval = FsmNew(&l1fsm_u, L1UFnList, L1U_FN_COUNT);
785         if (retval) {
786                 FsmFree(&l1fsm_s);
787                 FsmFree(&l1fsm_b);
788                 return retval;
789         }
790 #endif
791         return 0;
792 }
793
794 void Isdnl1Free(void)
795 {
796 #ifdef HISAX_UINTERFACE
797         FsmFree(&l1fsm_u);
798 #endif
799         FsmFree(&l1fsm_s);
800         FsmFree(&l1fsm_b);
801 }
802
803 static void
804 dch_l2l1(struct PStack *st, int pr, void *arg)
805 {
806         struct IsdnCardState *cs = (struct IsdnCardState *) st->l1.hardware;
807
808         switch (pr) {
809                 case (PH_DATA | REQUEST):
810                 case (PH_PULL | REQUEST):
811                 case (PH_PULL |INDICATION):
812                         st->l1.l1hw(st, pr, arg);
813                         break;
814                 case (PH_ACTIVATE | REQUEST):
815                         if (cs->debug)
816                                 debugl1(cs, "PH_ACTIVATE_REQ %s",
817                                         st->l1.l1m.fsm->strState[st->l1.l1m.state]);
818                         if (test_bit(FLG_L1_ACTIVATED, &st->l1.Flags))
819                                 st->l1.l1l2(st, PH_ACTIVATE | CONFIRM, NULL);
820                         else {
821                                 test_and_set_bit(FLG_L1_ACTIVATING, &st->l1.Flags);
822                                 FsmEvent(&st->l1.l1m, EV_PH_ACTIVATE, arg);
823                         }
824                         break;
825                 case (PH_TESTLOOP | REQUEST):
826                         if (1 & (long) arg)
827                                 debugl1(cs, "PH_TEST_LOOP B1");
828                         if (2 & (long) arg)
829                                 debugl1(cs, "PH_TEST_LOOP B2");
830                         if (!(3 & (long) arg))
831                                 debugl1(cs, "PH_TEST_LOOP DISABLED");
832                         st->l1.l1hw(st, HW_TESTLOOP | REQUEST, arg);
833                         break;
834                 default:
835                         if (cs->debug)
836                                 debugl1(cs, "dch_l2l1 msg %04X unhandled", pr);
837                         break;
838         }
839 }
840
841 void
842 l1_msg(struct IsdnCardState *cs, int pr, void *arg) {
843         struct PStack *st;
844
845         st = cs->stlist;
846         
847         while (st) {
848                 switch(pr) {
849                         case (HW_RESET | INDICATION):
850                                 FsmEvent(&st->l1.l1m, EV_RESET_IND, arg);
851                                 break;
852                         case (HW_DEACTIVATE | CONFIRM):
853                                 FsmEvent(&st->l1.l1m, EV_DEACT_CNF, arg);
854                                 break;
855                         case (HW_DEACTIVATE | INDICATION):
856                                 FsmEvent(&st->l1.l1m, EV_DEACT_IND, arg);
857                                 break;
858                         case (HW_POWERUP | CONFIRM):
859                                 FsmEvent(&st->l1.l1m, EV_POWER_UP, arg);
860                                 break;
861                         case (HW_RSYNC | INDICATION):
862                                 FsmEvent(&st->l1.l1m, EV_RSYNC_IND, arg);
863                                 break;
864                         case (HW_INFO2 | INDICATION):
865                                 FsmEvent(&st->l1.l1m, EV_INFO2_IND, arg);
866                                 break;
867                         case (HW_INFO4_P8 | INDICATION):
868                         case (HW_INFO4_P10 | INDICATION):
869                                 FsmEvent(&st->l1.l1m, EV_INFO4_IND, arg);
870                                 break;
871                         default:
872                                 if (cs->debug)
873                                         debugl1(cs, "l1msg %04X unhandled", pr);
874                                 break;
875                 }
876                 st = st->next;
877         }
878 }
879
880 void
881 l1_msg_b(struct PStack *st, int pr, void *arg) {
882         switch(pr) {
883                 case (PH_ACTIVATE | REQUEST):
884                         FsmEvent(&st->l1.l1m, EV_PH_ACTIVATE, NULL);
885                         break;
886                 case (PH_DEACTIVATE | REQUEST):
887                         FsmEvent(&st->l1.l1m, EV_PH_DEACTIVATE, NULL);
888                         break;
889         }
890 }
891
892 void
893 setstack_HiSax(struct PStack *st, struct IsdnCardState *cs)
894 {
895         st->l1.hardware = cs;
896         st->protocol = cs->protocol;
897         st->l1.l1m.fsm = &l1fsm_s;
898         st->l1.l1m.state = ST_L1_F3;
899         st->l1.Flags = 0;
900 #ifdef HISAX_UINTERFACE
901         if (test_bit(FLG_HW_L1_UINT, &cs->HW_Flags)) {
902                 st->l1.l1m.fsm = &l1fsm_u;
903                 st->l1.l1m.state = ST_L1_RESET;
904                 st->l1.Flags = FLG_L1_UINT;
905         }
906 #endif
907         st->l1.l1m.debug = cs->debug;
908         st->l1.l1m.userdata = st;
909         st->l1.l1m.userint = 0;
910         st->l1.l1m.printdebug = l1m_debug;
911         FsmInitTimer(&st->l1.l1m, &st->l1.timer);
912         setstack_tei(st);
913         setstack_manager(st);
914         st->l1.stlistp = &(cs->stlist);
915         st->l2.l2l1  = dch_l2l1;
916         if (cs->setstack_d)
917                 cs->setstack_d(st, cs);
918 }
919
920 void
921 setstack_l1_B(struct PStack *st)
922 {
923         struct IsdnCardState *cs = st->l1.hardware;
924
925         st->l1.l1m.fsm = &l1fsm_b;
926         st->l1.l1m.state = ST_L1_NULL;
927         st->l1.l1m.debug = cs->debug;
928         st->l1.l1m.userdata = st;
929         st->l1.l1m.userint = 0;
930         st->l1.l1m.printdebug = l1m_debug;
931         st->l1.Flags = 0;
932         FsmInitTimer(&st->l1.l1m, &st->l1.timer);
933 }