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   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) && (!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 static 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 static 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 }