Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Adrian Bunk | 672c3fd | 2005-06-25 14:59:18 -0700 | [diff] [blame] | 154 | static void |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Adrian Bunk | 672c3fd | 2005-06-25 14:59:18 -0700 | [diff] [blame] | 169 | static void |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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)) { |
David S. Miller | b03efcf | 2005-07-08 14:57:23 -0700 | [diff] [blame] | 282 | if (!test_bit(BC_FLG_BUSY, &bcs->Flag) && |
| 283 | skb_queue_empty(&bcs->squeue)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Adrian Bunk | 672c3fd | 2005-06-25 14:59:18 -0700 | [diff] [blame] | 374 | static char * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Adrian Bunk | 672c3fd | 2005-06-25 14:59:18 -0700 | [diff] [blame] | 408 | static char * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | } |