1 /*- 2 * Copyright (c) 2003 Hidetoshi Shimokawa 3 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the acknowledgement as bellow: 16 * 17 * This product includes software developed by K. Kobayashi and H. Shimokawa 18 * 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 25 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 * 34 * $FreeBSD: src/sys/dev/firewire/firewire.c,v 1.100 2007/07/20 03:42:57 simokawa Exp $ 35 * 36 */ 37 #include <OS.h> 38 #include <Drivers.h> 39 #include <KernelExport.h> 40 #include <SupportDefs.h> 41 #include <ByteOrder.h> 42 #include <malloc.h> 43 #include <string.h> 44 #include <stdio.h> 45 #include <sys/param.h> 46 #include <sys/types.h> 47 #include <sys/uio.h> 48 #include <dpc.h> 49 50 #include "fwdebug.h" 51 #include "fwglue.h" 52 #include "queue.h" 53 #include "firewire.h" 54 #include "iec13213.h" 55 #include "firewirereg.h" 56 #include "fwmem.h" 57 #include "iec68113.h" 58 #include "timer.h" 59 #include "util.h" 60 61 #define PROBE_THREAD_PRIORITY 80 62 63 int firewire_debug=1, try_bmr=1, hold_count=0; 64 65 #define FW_MAXASYRTY 4 66 67 static void firewire_xfer_timeout(void *); 68 static void fw_try_bmr (void *); 69 static void fw_try_bmr_callback (struct fw_xfer *); 70 static void fw_asystart (struct fw_xfer *); 71 static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *); 72 static void fw_bus_probe (void *); 73 static void fw_attach_dev (struct firewire_comm *); 74 static int32 fw_bus_probe_thread(void *); 75 #ifdef FW_VMACCESS 76 static void fw_vmaccess (struct fw_xfer *); 77 #endif 78 static int fw_bmr (struct firewire_comm *); 79 static void fw_dump_hdr(struct fw_pkt *, const char *); 80 81 82 extern const char *const linkspeed[]; 83 const char *const linkspeed[] = { 84 "S100", "S200", "S400", "S800", 85 "S1600", "S3200", "undef", "undef" 86 }; 87 88 static const char *const tcode_str[] = { 89 "WREQQ", "WREQB", "WRES", "undef", 90 "RREQQ", "RREQB", "RRESQ", "RRESB", 91 "CYCS", "LREQ", "STREAM", "LRES", 92 "undef", "undef", "PHY", "undef" 93 }; 94 95 /* IEEE-1394a Table C-2 Gap count as a function of hops*/ 96 #define MAX_GAPHOP 15 97 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 98 21, 24, 26, 29, 32, 35, 37, 40}; 99 100 101 /* 102 * Lookup fwdev by node id. 103 */ 104 struct fw_device * 105 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 106 { 107 struct fw_device *fwdev; 108 int s; 109 110 s = splfw(); 111 STAILQ_FOREACH(fwdev, &fc->devices, link) 112 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 113 break; 114 splx(s); 115 116 return fwdev; 117 } 118 119 /* 120 * Lookup fwdev by EUI64. 121 */ 122 struct fw_device * 123 fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 124 { 125 struct fw_device *fwdev; 126 int s; 127 128 s = splfw(); 129 FW_GLOCK(fc); 130 STAILQ_FOREACH(fwdev, &fc->devices, link) 131 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 132 break; 133 FW_GUNLOCK(fc); 134 splx(s); 135 136 if(fwdev == NULL) return NULL; 137 if(fwdev->status == FWDEVINVAL) return NULL; 138 return fwdev; 139 } 140 141 /* 142 * Async. request procedure for userland application. 143 */ 144 int 145 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 146 { 147 int err = 0; 148 struct fw_xferq *xferq; 149 int len; 150 struct fw_pkt *fp; 151 int tcode; 152 struct tcode_info *info; 153 154 if(xfer == NULL) return EINVAL; 155 if(xfer->hand == NULL){ 156 printf("hand == NULL\n"); 157 return EINVAL; 158 } 159 fp = &xfer->send.hdr; 160 161 tcode = fp->mode.common.tcode & 0xf; 162 info = &fc->tcode[tcode]; 163 if (info->flag == 0) { 164 printf("invalid tcode=%x\n", tcode); 165 return EINVAL; 166 } 167 168 /* XXX allow bus explore packets only after bus rest */ 169 if ((fc->status < FWBUSEXPLORE) && 170 ((tcode != FWTCODE_RREQQ) || (fp->mode.rreqq.dest_hi != 0xffff) || 171 (fp->mode.rreqq.dest_lo < 0xf0000000) || 172 (fp->mode.rreqq.dest_lo >= 0xf0001000))) { 173 xfer->resp = EAGAIN; 174 xfer->flag = FWXF_BUSY; 175 return (EAGAIN); 176 } 177 178 if (info->flag & FWTI_REQ) 179 xferq = fc->atq; 180 else 181 xferq = fc->ats; 182 len = info->hdr_len; 183 if (xfer->send.pay_len > MAXREC(fc->maxrec)) { 184 printf("send.pay_len > maxrec\n"); 185 return EINVAL; 186 } 187 if (info->flag & FWTI_BLOCK_STR) 188 len = fp->mode.stream.len; 189 else if (info->flag & FWTI_BLOCK_ASY) 190 len = fp->mode.rresb.len; 191 else 192 len = 0; 193 if (len != xfer->send.pay_len){ 194 printf("len(%d) != send.pay_len(%d) %s(%x)\n", 195 len, xfer->send.pay_len, tcode_str[tcode], tcode); 196 return EINVAL; 197 } 198 199 if(xferq->start == NULL){ 200 printf("xferq->start == NULL\n"); 201 return EINVAL; 202 } 203 if(!(xferq->queued < xferq->maxq)){ 204 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 205 xferq->queued); 206 return EAGAIN; 207 } 208 209 xfer->tl = -1; 210 if (info->flag & FWTI_TLABEL) { 211 if (fw_get_tlabel(fc, xfer) < 0) 212 return EAGAIN; 213 } 214 215 xfer->resp = 0; 216 xfer->fc = fc; 217 xfer->q = xferq; 218 219 fw_asystart(xfer); 220 return err; 221 } 222 /* 223 * Wakeup blocked process. 224 */ 225 void 226 fw_xferwake(struct fw_xfer *xfer) 227 { 228 // struct mtx *lock = &xfer->fc->wait_lock; 229 mutex *lock = &xfer->fc->wait_lock; 230 231 mtx_lock(lock); 232 xfer->flag |= FWXF_WAKE; 233 mtx_unlock(lock); 234 235 // wakeup(xfer); 236 release_sem(xfer->Sem); 237 return; 238 } 239 240 int 241 fw_xferwait(struct fw_xfer *xfer) 242 { 243 // struct mtx *lock = &xfer->fc->wait_lock; 244 mutex *lock = &xfer->fc->wait_lock; 245 int err = 0; 246 247 mtx_lock(lock); 248 if ((xfer->flag & FWXF_WAKE) == 0){ 249 // err = msleep((void *)xfer, lock, PWAIT|PCATCH, "fw_xferwait", 0); 250 mtx_unlock(lock); 251 err = acquire_sem(xfer->Sem); 252 return err; 253 } 254 mtx_unlock(lock); 255 256 return (err); 257 } 258 259 /* 260 * Async. request with given xfer structure. 261 */ 262 static void 263 fw_asystart(struct fw_xfer *xfer) 264 { 265 struct firewire_comm *fc = xfer->fc; 266 int s; 267 s = splfw(); 268 /* Protect from interrupt/timeout */ 269 FW_GLOCK(fc); 270 xfer->flag = FWXF_INQ; 271 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 272 #if 0 273 xfer->q->queued ++; 274 #endif 275 FW_GUNLOCK(fc); 276 splx(s); 277 /* XXX just queue for mbuf */ 278 // if (xfer->mbuf == NULL) 279 xfer->q->start(fc); 280 return; 281 } 282 283 284 static void 285 firewire_xfer_timeout(void *arg) 286 { 287 struct firewire_comm *fc = (struct firewire_comm *)arg; 288 struct fw_xfer *xfer, *txfer; 289 // struct timeval tv; 290 // struct timeval split_timeout; 291 bigtime_t tv; 292 STAILQ_HEAD(, fw_xfer) xfer_timeout; 293 int i, s; 294 295 // split_timeout.tv_sec = 0; 296 // split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 297 298 // microtime(&tv); 299 // timevalsub(&tv, &split_timeout); 300 tv = system_time(); 301 tv -= 200*1000; 302 STAILQ_INIT(&xfer_timeout); 303 304 s = splfw(); 305 mtx_lock(&fc->tlabel_lock); 306 for (i = 0; i < 0x40; i ++) { 307 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 308 if ((xfer->flag & FWXF_SENT) == 0) 309 /* not sent yet */ 310 break; 311 // if (timevalcmp(&xfer->tv, &tv, >)) 312 if (xfer->tv > tv) 313 /* the rests are newer than this */ 314 break; 315 device_printf(fc->bdev, 316 "split transaction timeout: " 317 "tl=0x%x flag=0x%02x\n", i, xfer->flag); 318 fw_dump_hdr(&xfer->send.hdr, "send"); 319 xfer->resp = ETIMEDOUT; 320 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel); 321 STAILQ_INSERT_TAIL(&xfer_timeout, xfer, tlabel); 322 } 323 } 324 mtx_unlock(&fc->tlabel_lock); 325 splx(s); 326 fc->timeout(fc); 327 328 STAILQ_FOREACH_SAFE(xfer, &xfer_timeout, tlabel, txfer) 329 xfer->hand(xfer); 330 } 331 332 #define WATCHDOG_HZ 10 333 static void 334 firewire_watchdog(void *arg) 335 { 336 struct firewire_comm *fc; 337 static int watchdog_clock = 0; 338 339 fc = (struct firewire_comm *)arg; 340 341 /* 342 * At boot stage, the device interrupt is disabled and 343 * We encounter a timeout easily. To avoid this, 344 * ignore clock interrupt for a while. 345 */ 346 if (watchdog_clock > WATCHDOG_HZ * 15) 347 // taskqueue_enqueue(fc->taskqueue, &fc->task_timeout); 348 firewire_xfer_timeout(fc); 349 else 350 watchdog_clock ++; 351 352 // callout_reset(&fc->timeout_callout, hz / WATCHDOG_HZ, 353 // (void *)firewire_watchdog, (void *)fc); 354 } 355 356 #if 0//to do 357 status_t 358 firewire_add_child(struct firewire_softc *sc, const char *childname, 359 struct firewire_notify_hooks *hooks) 360 { 361 struct firewire_child_info *element, *info; 362 if (!childname) 363 return B_BAD_VALUE; 364 365 element = sc->fc->childList; 366 while (element) { 367 if (strcmp(element->child_name, childname) == 0) { 368 // we already have an entry for this child 369 return B_OK; 370 } 371 372 element = element->link; 373 } 374 375 info = malloc(sizeof(struct firewire_child_info)); 376 if (!info) { 377 return B_NO_MEMORY; 378 } 379 380 info->child_name = strdup(childname); 381 info->notify_hooks.device_attach = hooks->device_attach; 382 info->notify_hooks.device_detach = hooks->device_detach; 383 info->cookie = NULL; 384 info->link = NULL; 385 386 element = sc->fc->childList; 387 if (element) { 388 while (element->link) 389 element = element->link; 390 element->link = info; 391 } else 392 sc->fc->childList = info; 393 394 hooks->device_attach(sc, &info->cookie); 395 return B_OK; 396 } 397 398 status_t 399 firewire_remove_child(struct firewire_softc *sc, const char *childname) 400 { 401 402 struct firewire_child_info *element = sc->fc->childList; 403 struct firewire_child_info *temp = element; 404 while (element) { 405 if (strcmp(element->child_name, childname) == 0) { 406 // trigger the device removed hook 407 element->notify_hooks.device_detach(sc, element->cookie); 408 if(temp->link == NULL) 409 sc->fc->childList = NULL;//childList has only a node 410 else 411 temp->link = element->link; 412 413 free(element); 414 return B_OK; 415 } 416 417 temp = element; 418 element = element->link; 419 } 420 421 return B_NAME_NOT_FOUND; 422 } 423 #endif 424 425 /* 426 * The attach routine. 427 */ 428 int 429 firewire_attach(struct firewire_comm *fc, struct firewire_softc *sc) 430 { 431 sc->fc = fc; 432 fc->status = (uint)FWBUSNOTREADY; 433 434 // unit = device_get_unit(dev); 435 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 436 437 // fwdev_makedev(sc); 438 439 fc->crom_src_buf = (struct crom_src_buf *)malloc( 440 sizeof(struct crom_src_buf)); 441 if (fc->crom_src_buf == NULL) { 442 device_printf(fc->dev, "%s: Malloc Failure crom src buff\n", __func__); 443 return ENOMEM; 444 } 445 memset(fc->crom_src_buf, 0, sizeof(struct crom_src_buf)); 446 fc->topology_map = (struct fw_topology_map *)malloc( 447 sizeof(struct fw_topology_map)); 448 if (fc->topology_map == NULL) { 449 device_printf(fc->dev, "%s: Malloc Failure topology map\n", __func__); 450 free(fc->crom_src_buf); 451 return ENOMEM; 452 } 453 memset(fc->topology_map, 0, sizeof(struct fw_topology_map)); 454 fc->speed_map = (struct fw_speed_map *)malloc( 455 sizeof(struct fw_speed_map)); 456 if (fc->speed_map == NULL) { 457 device_printf(fc->dev, "%s: Malloc Failure speed map\n", __func__); 458 free(fc->crom_src_buf); 459 free(fc->topology_map); 460 return ENOMEM; 461 } 462 memset(fc->speed_map, 0, sizeof(struct fw_speed_map)); 463 464 mtx_init(&fc->wait_lock, "fwwait", NULL, MTX_DEF); 465 mtx_init(&fc->tlabel_lock, "fwtlabel", NULL, MTX_DEF); 466 // CALLOUT_INIT(&fc->timeout_callout); 467 // CALLOUT_INIT(&fc->bmr_callout); 468 // CALLOUT_INIT(&fc->busprobe_callout); 469 // TASK_INIT(&fc->task_timeout, 0, firewire_xfer_timeout, (void *)fc); 470 471 // callout_reset(&sc->fc->timeout_callout, hz, 472 // (void *)firewire_watchdog, (void *)sc->fc); 473 fc->timeout_callout = create_timer(firewire_watchdog, fc, 474 hz/WATCHDOG_HZ, B_PERIODIC_TIMER); 475 476 /* create thread */ 477 // kproc_create(fw_bus_probe_thread, (void *)fc, &fc->probe_thread, 478 // 0, 0, "fw%d_probe", unit); 479 fc->probe_thread = spawn_kernel_thread(fw_bus_probe_thread, 480 "fw_probe", PROBE_THREAD_PRIORITY, fc); 481 if(fc->probe_thread < B_OK) 482 dprintf("can not Create bus probe thread\n"); 483 resume_thread(fc->probe_thread); 484 485 /* Locate our children */ 486 // bus_generic_probe(dev); 487 488 /* launch attachement of the added children */ 489 // bus_generic_attach(dev); 490 /* firewire_driver_info *element = sc->childList; 491 while(element){ 492 element->notify_hooks.device_attach(sc, element->cookie); 493 element = element->link; 494 }*/ 495 496 /* bus_reset */ 497 FW_GLOCK(fc); 498 fw_busreset(fc, (uint)FWBUSNOTREADY); 499 FW_GUNLOCK(fc); 500 fc->ibr(fc); 501 502 return 0; 503 } 504 505 /* 506 * Dettach it. 507 */ 508 void 509 firewire_detach(struct firewire_softc *sc) 510 { 511 struct firewire_comm *fc; 512 struct fw_device *fwdev, *fwdev_next; 513 struct firewire_child_info *element, *temp; 514 // int err; 515 516 fc = sc->fc; 517 mtx_lock(&fc->wait_lock); 518 fc->status = (uint)FWBUSDETACH; 519 // wakeup(fc); 520 release_sem(fc->Sem); 521 /* if (msleep(fc->probe_thread, &fc->wait_lock, PWAIT, "fwthr", hz * 60)) 522 printf("firewire probe thread didn't die\n");*/ 523 mtx_unlock(&fc->wait_lock); 524 DELAY(hz*60); 525 526 if (fc->arq !=0 && fc->arq->maxq > 0) 527 fw_drain_txq(fc); 528 /* if ((err = fwdev_destroydev(sc)) != 0) 529 return err; 530 531 if ((err = bus_generic_detach(dev)) != 0) 532 return err;*/ 533 534 element = sc->fc->childList; 535 while(element){ 536 element->notify_hooks.device_detach(sc, element->cookie); 537 temp = element; 538 element = element->link; 539 free(temp); 540 } 541 sc->fc->childList = NULL; 542 543 /* callout_stop(&fc->timeout_callout); 544 callout_stop(&fc->bmr_callout); 545 callout_stop(&fc->busprobe_callout);*/ 546 delete_timer(fc->timeout_callout); 547 delete_timer(fc->bmr_callout); 548 delete_timer(fc->busprobe_callout); 549 550 551 /* XXX xfer_free and untimeout on all xfers */ 552 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; 553 fwdev = fwdev_next) { 554 fwdev_next = STAILQ_NEXT(fwdev, link); 555 free(fwdev); 556 } 557 free(fc->topology_map); 558 free(fc->speed_map); 559 free(fc->crom_src_buf); 560 561 mtx_destroy(&fc->tlabel_lock); 562 mtx_destroy(&fc->wait_lock); 563 // return(0); 564 } 565 #if 0 566 static int 567 firewire_shutdown( device_t dev ) 568 { 569 return 0; 570 } 571 #endif 572 573 574 static void 575 fw_xferq_drain(struct fw_xferq *xferq) 576 { 577 struct fw_xfer *xfer; 578 579 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 580 STAILQ_REMOVE_HEAD(&xferq->q, link); 581 #if 0 582 xferq->queued --; 583 #endif 584 xfer->resp = EAGAIN; 585 xfer->flag = FWXF_SENTERR; 586 fw_xfer_done(xfer); 587 } 588 } 589 590 void 591 fw_drain_txq(struct firewire_comm *fc) 592 { 593 struct fw_xfer *xfer, *txfer; 594 STAILQ_HEAD(, fw_xfer) xfer_drain; 595 int i; 596 597 STAILQ_INIT(&xfer_drain); 598 599 FW_GLOCK(fc); 600 fw_xferq_drain(fc->atq); 601 fw_xferq_drain(fc->ats); 602 for(i = 0; i < fc->nisodma; i++) 603 fw_xferq_drain(fc->it[i]); 604 FW_GUNLOCK(fc); 605 606 mtx_lock(&fc->tlabel_lock); 607 for (i = 0; i < 0x40; i ++) 608 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 609 if (firewire_debug) 610 printf("tl=%d flag=%d\n", i, xfer->flag); 611 xfer->resp = EAGAIN; 612 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel); 613 STAILQ_INSERT_TAIL(&xfer_drain, xfer, tlabel); 614 } 615 mtx_unlock(&fc->tlabel_lock); 616 617 STAILQ_FOREACH_SAFE(xfer, &xfer_drain, tlabel, txfer) 618 xfer->hand(xfer); 619 } 620 621 static void 622 fw_reset_csr(struct firewire_comm *fc) 623 { 624 int i; 625 626 CSRARC(fc, STATE_CLEAR) 627 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 628 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 629 CSRARC(fc, NODE_IDS) = 0x3f; 630 631 CSRARC(fc, TOPO_MAP + 8) = 0; 632 fc->irm = (uint)-1; 633 634 fc->max_node = (uint)-1; 635 636 for(i = 2; i < 0x100/4 - 2 ; i++){ 637 CSRARC(fc, SPED_MAP + i * 4) = 0; 638 } 639 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 640 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 641 CSRARC(fc, RESET_START) = 0; 642 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 643 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 644 CSRARC(fc, CYCLE_TIME) = 0x0; 645 CSRARC(fc, BUS_TIME) = 0x0; 646 CSRARC(fc, BUS_MGR_ID) = 0x3f; 647 CSRARC(fc, BANDWIDTH_AV) = 4915; 648 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 649 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 650 CSRARC(fc, IP_CHANNELS) = (1 << 31); 651 652 CSRARC(fc, CONF_ROM) = 0x04 << 24; 653 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 654 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 655 1 << 28 | 0xff << 16 | 0x09 << 8; 656 CSRARC(fc, CONF_ROM + 0xc) = 0; 657 658 /* DV depend CSRs see blue book */ 659 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 660 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 661 662 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 663 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 664 } 665 666 static void 667 fw_init_crom(struct firewire_comm *fc) 668 { 669 struct crom_src *src; 670 671 src = &fc->crom_src_buf->src; 672 bzero(src, sizeof(struct crom_src)); 673 674 /* BUS info sample */ 675 src->hdr.info_len = 4; 676 677 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 678 679 src->businfo.irmc = 1; 680 src->businfo.cmc = 1; 681 src->businfo.isc = 1; 682 src->businfo.bmc = 1; 683 src->businfo.pmc = 0; 684 src->businfo.cyc_clk_acc = 100; 685 src->businfo.max_rec = fc->maxrec; 686 src->businfo.max_rom = MAXROM_4; 687 #define FW_GENERATION_CHANGEABLE 2 688 src->businfo.generation = FW_GENERATION_CHANGEABLE; 689 src->businfo.link_spd = fc->speed; 690 691 src->businfo.eui64.hi = fc->eui.hi; 692 src->businfo.eui64.lo = fc->eui.lo; 693 694 STAILQ_INIT(&src->chunk_list); 695 696 fc->crom_src = src; 697 fc->crom_root = &fc->crom_src_buf->root; 698 } 699 700 static void 701 fw_reset_crom(struct firewire_comm *fc) 702 { 703 struct crom_src_buf *buf; 704 struct crom_src *src; 705 struct crom_chunk *root; 706 707 buf = fc->crom_src_buf; 708 src = fc->crom_src; 709 root = fc->crom_root; 710 711 STAILQ_INIT(&src->chunk_list); 712 713 bzero(root, sizeof(struct crom_chunk)); 714 crom_add_chunk(src, NULL, root, 0); 715 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 716 /* private company_id */ 717 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 718 #if 0 719 #ifdef __DragonFly__ 720 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 721 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version); 722 #else 723 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 724 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 725 #endif 726 #endif 727 crom_add_simple_text(src, root, &buf->vendor, "HAIKU Project"); 728 crom_add_entry(root, CSRKEY_HW, B_CUR_DRIVER_API_VERSION); 729 crom_add_simple_text(src, root, &buf->hw, ""); 730 } 731 732 /* 733 * Called after bus reset. 734 */ 735 void 736 fw_busreset(struct firewire_comm *fc, uint32_t new_status) 737 { 738 struct firewire_dev_comm *fdc; 739 struct crom_src *src; 740 // device_t *devlistp; 741 uint32_t *newrom; 742 // int i, devcnt; 743 struct firewire_child_info *element = fc->childList; 744 745 FW_GLOCK_ASSERT(fc); 746 if (fc->status == FWBUSMGRELECT) 747 // callout_stop(&fc->bmr_callout); 748 delete_timer(fc->bmr_callout); 749 fc->status = new_status; 750 fw_reset_csr(fc); 751 752 if ((int32)fc->status == FWBUSNOTREADY) 753 fw_init_crom(fc); 754 755 fw_reset_crom(fc); 756 757 758 /* if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 759 for( i = 0 ; i < devcnt ; i++) 760 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 761 fdc = device_get_softc(devlistp[i]); 762 if (fdc->post_busreset != NULL) 763 fdc->post_busreset(fdc); 764 } 765 free(devlistp); 766 }*/ 767 768 while(element){ 769 // fdc = &element->cookie.fd; 770 fdc = (struct firewire_dev_comm *)element->cookie; 771 if (fdc->post_busreset != NULL) 772 fdc->post_busreset(fdc); 773 element = element->link; 774 } 775 776 src = &fc->crom_src_buf->src; 777 /* 778 * If the old config rom needs to be overwritten, 779 * bump the businfo.generation indicator to 780 * indicate that we need to be reprobed 781 * See 1394a-2000 8.3.2.5.4 for more details. 782 * generation starts at 2 and rolls over at 0xF 783 * back to 2. 784 * 785 * A generation of 0 indicates a device 786 * that is not 1394a-2000 compliant. 787 * A generation of 1 indicates a device that 788 * does not change it's Bus Info Block or 789 * Configuration ROM. 790 */ 791 #define FW_MAX_GENERATION 0xF 792 newrom = (uint32_t*)malloc(CROMSIZE); 793 memset(newrom, 0, CROMSIZE); 794 src = &fc->crom_src_buf->src; 795 crom_load(src, newrom, CROMSIZE); 796 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 797 if ( src->businfo.generation++ > FW_MAX_GENERATION ) 798 src->businfo.generation = FW_GENERATION_CHANGEABLE; 799 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 800 } 801 free(newrom); 802 } 803 804 /* Call once after reboot */ 805 void fw_init(struct firewire_comm *fc) 806 { 807 int i; 808 char tempname[16]; 809 #ifdef FW_VMACCESS 810 struct fw_xfer *xfer; 811 struct fw_bind *fwb; 812 #endif 813 814 fc->arq->queued = 0; 815 fc->ars->queued = 0; 816 fc->atq->queued = 0; 817 fc->ats->queued = 0; 818 819 fc->arq->buf = NULL; 820 fc->ars->buf = NULL; 821 fc->atq->buf = NULL; 822 fc->ats->buf = NULL; 823 824 fc->arq->flag = 0; 825 fc->ars->flag = 0; 826 fc->atq->flag = 0; 827 fc->ats->flag = 0; 828 829 STAILQ_INIT(&fc->atq->q); 830 STAILQ_INIT(&fc->ats->q); 831 832 fc->Sem = create_sem(0, "fc Sem"); 833 834 for( i = 0 ; i < fc->nisodma ; i ++ ){ 835 fc->it[i]->queued = 0; 836 fc->ir[i]->queued = 0; 837 838 fc->it[i]->start = NULL; 839 fc->ir[i]->start = NULL; 840 841 fc->it[i]->buf = NULL; 842 fc->ir[i]->buf = NULL; 843 844 fc->it[i]->flag = FWXFERQ_STREAM; 845 fc->ir[i]->flag = FWXFERQ_STREAM; 846 847 STAILQ_INIT(&fc->it[i]->q); 848 STAILQ_INIT(&fc->ir[i]->q); 849 850 snprintf(tempname, sizeof(tempname), "it%d ready sem", i); 851 fc->it[i]->Sem = create_sem(0, tempname); 852 snprintf(tempname, sizeof(tempname), "ir%d ready sem", i); 853 fc->ir[i]->Sem = create_sem(0, tempname); 854 } 855 856 fc->arq->maxq = FWMAXQUEUE; 857 fc->ars->maxq = FWMAXQUEUE; 858 fc->atq->maxq = FWMAXQUEUE; 859 fc->ats->maxq = FWMAXQUEUE; 860 861 for( i = 0 ; i < fc->nisodma ; i++){ 862 fc->ir[i]->maxq = FWMAXQUEUE; 863 fc->it[i]->maxq = FWMAXQUEUE; 864 } 865 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 866 CSRARC(fc, TOPO_MAP + 4) = 1; 867 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 868 CSRARC(fc, SPED_MAP + 4) = 1; 869 870 STAILQ_INIT(&fc->devices); 871 872 /* Initialize Async handlers */ 873 STAILQ_INIT(&fc->binds); 874 for( i = 0 ; i < 0x40 ; i++){ 875 STAILQ_INIT(&fc->tlabels[i]); 876 } 877 878 /* DV depend CSRs see blue book */ 879 #if 0 880 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 881 CSRARC(fc, oPCR) = 0x8000007a; 882 for(i = 4 ; i < 0x7c/4 ; i+=4){ 883 CSRARC(fc, i + oPCR) = 0x8000007a; 884 } 885 886 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 887 CSRARC(fc, iPCR) = 0x803f0000; 888 for(i = 4 ; i < 0x7c/4 ; i+=4){ 889 CSRARC(fc, i + iPCR) = 0x0; 890 } 891 #endif 892 893 fc->crom_src_buf = NULL; 894 895 #ifdef FW_VMACCESS 896 xfer = fw_xfer_alloc(); 897 if(xfer == NULL) return; 898 899 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 900 if(fwb == NULL){ 901 fw_xfer_free(xfer); 902 return; 903 } 904 xfer->hand = fw_vmaccess; 905 xfer->fc = fc; 906 xfer->sc = NULL; 907 908 fwb->start_hi = 0x2; 909 fwb->start_lo = 0; 910 fwb->addrlen = 0xffffffff; 911 fwb->xfer = xfer; 912 fw_bindadd(fc, fwb); 913 #endif 914 } 915 916 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 917 ((fwb)->end < (addr))?1:0) 918 919 /* 920 * To lookup bound process from IEEE1394 address. 921 */ 922 struct fw_bind * 923 fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 924 { 925 u_int64_t addr; 926 struct fw_bind *tfw, *r = NULL; 927 928 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 929 FW_GLOCK(fc); 930 STAILQ_FOREACH(tfw, &fc->binds, fclist) 931 if (BIND_CMP(addr, tfw) == 0) { 932 r = tfw; 933 break; 934 } 935 FW_GUNLOCK(fc); 936 return(r); 937 } 938 939 /* 940 * To bind IEEE1394 address block to process. 941 */ 942 int 943 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 944 { 945 struct fw_bind *tfw, *prev = NULL; 946 int r = 0; 947 948 if (fwb->start > fwb->end) { 949 printf("%s: invalid range\n", __func__); 950 return EINVAL; 951 } 952 953 FW_GLOCK(fc); 954 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 955 if (fwb->end < tfw->start) 956 break; 957 prev = tfw; 958 } 959 if (prev == NULL) 960 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 961 else if (prev->end < fwb->start) 962 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 963 else { 964 printf("%s: bind failed\n", __func__); 965 r = EBUSY; 966 } 967 FW_GUNLOCK(fc); 968 return (r); 969 } 970 971 /* 972 * To free IEEE1394 address block. 973 */ 974 int 975 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 976 { 977 #if 0 978 struct fw_xfer *xfer, *next; 979 #endif 980 struct fw_bind *tfw; 981 int s; 982 983 s = splfw(); 984 FW_GLOCK(fc); 985 STAILQ_FOREACH(tfw, &fc->binds, fclist) 986 if (tfw == fwb) { 987 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 988 goto found; 989 } 990 991 printf("%s: no such binding\n", __func__); 992 FW_GUNLOCK(fc); 993 splx(s); 994 return (1); 995 found: 996 #if 0 997 /* shall we do this? */ 998 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 999 next = STAILQ_NEXT(xfer, link); 1000 fw_xfer_free(xfer); 1001 } 1002 STAILQ_INIT(&fwb->xferlist); 1003 #endif 1004 FW_GUNLOCK(fc); 1005 1006 splx(s); 1007 return 0; 1008 } 1009 1010 int 1011 fw_xferlist_add(struct fw_xferlist *q, int slen, int rlen, int n, 1012 struct firewire_comm *fc, void *sc, void (*hand)(struct fw_xfer *)) 1013 { 1014 int i, s; 1015 struct fw_xfer *xfer; 1016 1017 for (i = 0; i < n; i++) { 1018 xfer = fw_xfer_alloc_buf(slen, rlen); 1019 if (xfer == NULL) 1020 return (n); 1021 xfer->fc = fc; 1022 xfer->sc = (caddr_t)sc; 1023 xfer->hand = hand; 1024 s = splfw(); 1025 STAILQ_INSERT_TAIL(q, xfer, link); 1026 splx(s); 1027 } 1028 return (n); 1029 } 1030 1031 void 1032 fw_xferlist_remove(struct fw_xferlist *q) 1033 { 1034 struct fw_xfer *xfer, *next; 1035 1036 for (xfer = STAILQ_FIRST(q); xfer != NULL; xfer = next) { 1037 next = STAILQ_NEXT(xfer, link); 1038 fw_xfer_free_buf(xfer); 1039 } 1040 STAILQ_INIT(q); 1041 } 1042 /* 1043 * dump packet header 1044 */ 1045 static void 1046 fw_dump_hdr(struct fw_pkt *fp, const char *prefix) 1047 { 1048 printf("%s: dst=0x%02x tl=0x%02x rt=%d tcode=0x%x pri=0x%x " 1049 "src=0x%03x\n", prefix, 1050 fp->mode.hdr.dst & 0x3f, 1051 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tlrt & 3, 1052 fp->mode.hdr.tcode, fp->mode.hdr.pri, 1053 fp->mode.hdr.src); 1054 } 1055 1056 /* 1057 * To free transaction label. 1058 */ 1059 static void 1060 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 1061 { 1062 struct fw_xfer *txfer; 1063 int s; 1064 1065 if (xfer->tl < 0) 1066 return; 1067 1068 s = splfw(); 1069 mtx_lock(&fc->tlabel_lock); 1070 #if 1 /* make sure the label is allocated */ 1071 STAILQ_FOREACH(txfer, &fc->tlabels[xfer->tl], tlabel) 1072 if(txfer == xfer) 1073 break; 1074 if (txfer == NULL) { 1075 printf("%s: the xfer is not in the queue " 1076 "(tlabel=%d, flag=0x%x)\n", 1077 __FUNCTION__, xfer->tl, xfer->flag); 1078 fw_dump_hdr(&xfer->send.hdr, "send"); 1079 fw_dump_hdr(&xfer->recv.hdr, "recv"); 1080 // kdb_backtrace(); 1081 mtx_unlock(&fc->tlabel_lock); 1082 splx(s); 1083 return; 1084 } 1085 #endif 1086 1087 STAILQ_REMOVE(&fc->tlabels[xfer->tl], xfer, fw_xfer, tlabel); 1088 mtx_unlock(&fc->tlabel_lock); 1089 splx(s); 1090 return; 1091 } 1092 1093 /* 1094 * To obtain XFER structure by transaction label. 1095 */ 1096 static struct fw_xfer * 1097 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel, int tcode) 1098 { 1099 struct fw_xfer *xfer; 1100 int s; 1101 int req; 1102 1103 s = splfw(); 1104 1105 mtx_lock(&fc->tlabel_lock); 1106 STAILQ_FOREACH(xfer, &fc->tlabels[tlabel], tlabel) 1107 if((uint)xfer->send.hdr.mode.hdr.dst == (uint)node) { 1108 mtx_unlock(&fc->tlabel_lock); 1109 splx(s); 1110 KASSERT(xfer->tl == tlabel, 1111 ("xfer->tl 0x%x != 0x%x", xfer->tl, tlabel)); 1112 /* extra sanity check */ 1113 req = xfer->send.hdr.mode.hdr.tcode; 1114 if (xfer->fc->tcode[req].valid_res != tcode) { 1115 printf("%s: invalid response tcode " 1116 "(0x%x for 0x%x)\n", __FUNCTION__, 1117 tcode, req); 1118 return(NULL); 1119 } 1120 1121 if (firewire_debug > 2) 1122 printf("fw_tl2xfer: found tl=%d\n", tlabel); 1123 return(xfer); 1124 } 1125 mtx_unlock(&fc->tlabel_lock); 1126 if (firewire_debug > 1) 1127 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 1128 splx(s); 1129 return(NULL); 1130 } 1131 1132 /* 1133 * To allocate IEEE1394 XFER structure. 1134 */ 1135 struct fw_xfer * 1136 fw_xfer_alloc() 1137 { 1138 struct fw_xfer *xfer; 1139 1140 xfer = (fw_xfer*)malloc(sizeof(struct fw_xfer)); 1141 if (xfer == NULL) 1142 return xfer; 1143 memset(xfer, 0, sizeof(struct fw_xfer)); 1144 1145 xfer->Sem = create_sem(0, "xfer ready sem"); 1146 1147 // xfer->malloc = type; 1148 1149 return xfer; 1150 } 1151 1152 struct fw_xfer * 1153 fw_xfer_alloc_buf(int send_len, int recv_len) 1154 { 1155 struct fw_xfer *xfer; 1156 void *send_virt, *send_phy, *recv_virt, *recv_phy; 1157 1158 xfer = fw_xfer_alloc(); 1159 if (xfer == NULL) 1160 return(NULL); 1161 xfer->send.pay_len = send_len; 1162 xfer->recv.pay_len = recv_len; 1163 if (send_len > 0) { 1164 /* xfer->send.payload = malloc(send_len); 1165 if (xfer->send.payload == NULL) { 1166 fw_xfer_free(xfer); 1167 return(NULL); 1168 } 1169 memset(xfer->send.payload 0, send_len);*/ 1170 xfer->send.payArea = alloc_mem(&send_virt, &send_phy, 1171 send_len, 0, "firewire tx buf"); 1172 if (xfer->send.payArea < B_OK){ 1173 fw_xfer_free(xfer); 1174 return(NULL); 1175 } 1176 xfer->send.payload = (uint32_t *)send_virt; 1177 xfer->send.bus_addr = (bus_addr_t)(addr_t)send_phy; 1178 } 1179 if (recv_len > 0) { 1180 /* xfer->recv.payload = malloc(recv_len); 1181 if (xfer->recv.payload == NULL) { 1182 if (xfer->send.payload != NULL) 1183 free(xfer->send.payload); 1184 fw_xfer_free(xfer); 1185 return(NULL); 1186 }*/ 1187 xfer->recv.payArea = alloc_mem(&recv_virt, &recv_phy, 1188 recv_len, 0, "firewire rx buf"); 1189 if (xfer->recv.payArea < B_OK){ 1190 if (xfer->send.payArea > B_OK){ 1191 delete_area(xfer->send.payArea); 1192 xfer->send.payArea = -1; 1193 } 1194 1195 fw_xfer_free(xfer); 1196 return(NULL); 1197 } 1198 xfer->recv.payload = (uint32_t *)recv_virt; 1199 xfer->recv.bus_addr = (bus_addr_t)(addr_t)recv_phy; 1200 } 1201 return(xfer); 1202 } 1203 1204 /* 1205 * IEEE1394 XFER post process. 1206 */ 1207 void 1208 fw_xfer_done(struct fw_xfer *xfer) 1209 { 1210 if (xfer->hand == NULL) { 1211 printf("hand == NULL\n"); 1212 return; 1213 } 1214 1215 if (xfer->fc == NULL) 1216 panic("fw_xfer_done: why xfer->fc is NULL?"); 1217 1218 fw_tl_free(xfer->fc, xfer); 1219 xfer->hand(xfer); 1220 } 1221 1222 void 1223 fw_xfer_unload(struct fw_xfer* xfer) 1224 { 1225 int s; 1226 1227 if(xfer == NULL ) return; 1228 if(xfer->flag & FWXF_INQ){ 1229 printf("fw_xfer_free FWXF_INQ\n"); 1230 s = splfw(); 1231 FW_GLOCK(xfer->fc); 1232 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1233 #if 0 1234 xfer->q->queued --; 1235 #endif 1236 FW_GUNLOCK(xfer->fc); 1237 splx(s); 1238 } 1239 if (xfer->fc != NULL) { 1240 #if 1 1241 if(xfer->flag & FWXF_START) 1242 /* 1243 * This could happen if: 1244 * 1. We call fwohci_arcv() before fwohci_txd(). 1245 * 2. firewire_watch() is called. 1246 */ 1247 printf("fw_xfer_free FWXF_START\n"); 1248 #endif 1249 } 1250 xfer->flag = FWXF_INIT; 1251 xfer->resp = 0; 1252 } 1253 /* 1254 * To free IEEE1394 XFER structure. 1255 */ 1256 void 1257 fw_xfer_free_buf( struct fw_xfer* xfer) 1258 { 1259 if (xfer == NULL) { 1260 printf("%s: xfer == NULL\n", __func__); 1261 return; 1262 } 1263 fw_xfer_unload(xfer); 1264 /* if(xfer->send.payload != NULL){ 1265 free(xfer->send.payload); 1266 } 1267 if(xfer->recv.payload != NULL){ 1268 free(xfer->recv.payload); 1269 }*/ 1270 if (xfer->send.payArea > B_OK){ 1271 delete_area(xfer->send.payArea); 1272 xfer->send.payArea = -1; 1273 } 1274 if (xfer->recv.payArea > B_OK){ 1275 delete_area(xfer->recv.payArea); 1276 xfer->recv.payArea = -1; 1277 } 1278 delete_sem(xfer->Sem); 1279 free(xfer); 1280 } 1281 1282 void 1283 fw_xfer_free( struct fw_xfer* xfer) 1284 { 1285 if (xfer == NULL) { 1286 printf("%s: xfer == NULL\n", __func__); 1287 return; 1288 } 1289 delete_sem(xfer->Sem); 1290 fw_xfer_unload(xfer); 1291 free(xfer); 1292 } 1293 1294 void 1295 fw_asy_callback_free(struct fw_xfer *xfer) 1296 { 1297 #if 0 1298 printf("asyreq done flag=0x%02x resp=%d\n", 1299 xfer->flag, xfer->resp); 1300 #endif 1301 fw_xfer_free(xfer); 1302 } 1303 1304 /* 1305 * To configure PHY. 1306 */ 1307 static void 1308 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1309 { 1310 struct fw_xfer *xfer; 1311 struct fw_pkt *fp; 1312 1313 fc->status = FWBUSPHYCONF; 1314 1315 xfer = fw_xfer_alloc(); 1316 if (xfer == NULL) 1317 return; 1318 xfer->fc = fc; 1319 xfer->hand = fw_asy_callback_free; 1320 1321 fp = &xfer->send.hdr; 1322 fp->mode.ld[1] = 0; 1323 if (root_node >= 0) 1324 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1325 if (gap_count >= 0) 1326 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1327 fp->mode.ld[2] = ~fp->mode.ld[1]; 1328 /* XXX Dangerous, how to pass PHY packet to device driver */ 1329 fp->mode.common.tcode |= FWTCODE_PHY; 1330 1331 if (firewire_debug) 1332 device_printf(fc->bdev, "%s: root_node=%d gap_count=%d\n", 1333 __func__, root_node, gap_count); 1334 fw_asyreq(fc, -1, xfer); 1335 } 1336 1337 /* 1338 * Dump self ID. 1339 */ 1340 static void 1341 fw_print_sid(uint32_t sid) 1342 { 1343 union fw_self_id *s; 1344 s = (union fw_self_id *) &sid; 1345 if ( s->p0.sequel ) { 1346 if ( s->p1.sequence_num == FW_SELF_ID_PAGE0 ) { 1347 printf("node:%d p3:%d p4:%d p5:%d p6:%d p7:%d" 1348 "p8:%d p9:%d p10:%d\n", 1349 s->p1.phy_id, s->p1.port3, s->p1.port4, 1350 s->p1.port5, s->p1.port6, s->p1.port7, 1351 s->p1.port8, s->p1.port9, s->p1.port10); 1352 } else if (s->p2.sequence_num == FW_SELF_ID_PAGE1 ){ 1353 printf("node:%d p11:%d p12:%d p13:%d p14:%d p15:%d\n", 1354 s->p2.phy_id, s->p2.port11, s->p2.port12, 1355 s->p2.port13, s->p2.port14, s->p2.port15); 1356 } else { 1357 printf("node:%d Unknown Self ID Page number %d\n", 1358 s->p1.phy_id, s->p1.sequence_num); 1359 } 1360 } else { 1361 printf("node:%d link:%d gap:%d spd:%d con:%d pwr:%d" 1362 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1363 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1364 s->p0.phy_speed, s->p0.contender, 1365 s->p0.power_class, s->p0.port0, s->p0.port1, 1366 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1367 } 1368 } 1369 1370 /* 1371 * To receive self ID. 1372 */ 1373 void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1374 { 1375 uint32_t *p; 1376 union fw_self_id *self_id; 1377 u_int i, j, node, c_port = 0, i_branch = 0; 1378 1379 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1380 fc->max_node = fc->nodeid & 0x3f; 1381 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1382 fc->status = FWBUSCYMELECT; 1383 fc->topology_map->crc_len = 2; 1384 fc->topology_map->generation ++; 1385 fc->topology_map->self_id_count = 0; 1386 fc->topology_map->node_count = 0; 1387 fc->speed_map->generation ++; 1388 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1389 self_id = &fc->topology_map->self_id[0]; 1390 for(i = 0; i < fc->sid_cnt; i ++){ 1391 if (sid[1] != ~sid[0]) { 1392 device_printf(fc->bdev, "%s:" 1393 "ERROR invalid self-id packet\n", __func__); 1394 sid += 2; 1395 continue; 1396 } 1397 *self_id = *((union fw_self_id *)sid); 1398 (void)(fc->topology_map->crc_len++); 1399 if(self_id->p0.sequel == 0){ 1400 (void)(fc->topology_map->node_count++); 1401 c_port = 0; 1402 if (firewire_debug) 1403 fw_print_sid(sid[0]); 1404 1405 node = self_id->p0.phy_id; 1406 if(fc->max_node < node){ 1407 fc->max_node = self_id->p0.phy_id; 1408 } 1409 /* XXX I'm not sure this is the right speed_map */ 1410 fc->speed_map->speed[node][node] 1411 = self_id->p0.phy_speed; 1412 for (j = 0; j < node; j ++) { 1413 fc->speed_map->speed[j][node] 1414 = fc->speed_map->speed[node][j] 1415 = min_c(fc->speed_map->speed[j][j], 1416 self_id->p0.phy_speed); 1417 } 1418 if ((fc->irm == (u_int)-1 || self_id->p0.phy_id > fc->irm) && 1419 (self_id->p0.link_active && self_id->p0.contender)) { 1420 fc->irm = self_id->p0.phy_id; 1421 } 1422 if(self_id->p0.port0 >= 0x2){ 1423 c_port++; 1424 } 1425 if(self_id->p0.port1 >= 0x2){ 1426 c_port++; 1427 } 1428 if(self_id->p0.port2 >= 0x2){ 1429 c_port++; 1430 } 1431 } 1432 if(c_port > 2){ 1433 i_branch += (c_port - 2); 1434 } 1435 sid += 2; 1436 self_id++; 1437 (void)(fc->topology_map->self_id_count++); 1438 } 1439 /* CRC */ 1440 fc->topology_map->crc = fw_crc16( 1441 (uint32_t *)&fc->topology_map->generation, 1442 fc->topology_map->crc_len * 4); 1443 fc->speed_map->crc = fw_crc16( 1444 (uint32_t *)&fc->speed_map->generation, 1445 fc->speed_map->crc_len * 4); 1446 /* byteswap and copy to CSR */ 1447 p = (uint32_t *)fc->topology_map; 1448 for (i = 0; i <= fc->topology_map->crc_len; i++) 1449 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1450 p = (uint32_t *)fc->speed_map; 1451 CSRARC(fc, SPED_MAP) = htonl(*p++); 1452 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1453 /* don't byte-swap uint8_t array */ 1454 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1455 1456 fc->max_hop = fc->max_node - i_branch; 1457 device_printf(fc->bdev, "%d nodes, maxhop <= %d %s irm(%d) %s\n", 1458 fc->max_node + 1, fc->max_hop, 1459 (fc->irm == (u_int)-1) ? "Not IRM capable" : "cable IRM", 1460 fc->irm, 1461 (fc->irm == fc->nodeid) ? " (me) " : ""); 1462 1463 if (try_bmr && (fc->irm != (u_int)-1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1464 if (fc->irm == fc->nodeid) { 1465 fc->status = FWBUSMGRDONE; 1466 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1467 fw_bmr(fc); 1468 } else { 1469 fc->status = FWBUSMGRELECT; 1470 // callout_reset(&fc->bmr_callout, hz/8, 1471 // (void *)fw_try_bmr, (void *)fc); 1472 fc->bmr_callout = create_timer(fw_try_bmr, fc, 1473 hz/8, B_ONE_SHOT_RELATIVE_TIMER); 1474 } 1475 } else 1476 fc->status = FWBUSMGRDONE; 1477 1478 // callout_reset(&fc->busprobe_callout, hz/4, 1479 // (void *)fw_bus_probe, (void *)fc); 1480 fc->busprobe_callout = create_timer(fw_bus_probe, fc, 1481 hz/4, B_ONE_SHOT_RELATIVE_TIMER); 1482 } 1483 1484 /* 1485 * To probe devices on the IEEE1394 bus. 1486 */ 1487 static void 1488 fw_bus_probe(void *arg) 1489 { 1490 int s; 1491 struct firewire_comm *fc = (struct firewire_comm *)arg; 1492 struct fw_device *fwdev; 1493 1494 s = splfw(); 1495 fc->status = FWBUSEXPLORE; 1496 1497 /* Invalidate all devices, just after bus reset. */ 1498 if (firewire_debug) 1499 device_printf(fc->bdev, "%s:" 1500 "iterate and invalidate all nodes\n", 1501 __func__); 1502 STAILQ_FOREACH(fwdev, &fc->devices, link) 1503 if (fwdev->status != FWDEVINVAL) { 1504 fwdev->status = FWDEVINVAL; 1505 fwdev->rcnt = 0; 1506 if (firewire_debug) 1507 device_printf(fc->bdev, "%s:" 1508 "Invalidate Dev ID: %08x%08x\n", 1509 __func__, fwdev->eui.hi, fwdev->eui.lo); 1510 } else { 1511 if (firewire_debug) 1512 device_printf(fc->bdev, "%s:" 1513 "Dev ID: %08x%08x already invalid\n", 1514 __func__, fwdev->eui.hi, fwdev->eui.lo); 1515 1516 } 1517 splx(s); 1518 1519 // wakeup((void *)fc); 1520 release_sem(fc->Sem); 1521 } 1522 1523 static int 1524 fw_explore_read_quads(struct fw_device *fwdev, int offset, 1525 uint32_t *quad, int length) 1526 { 1527 struct fw_xfer *xfer; 1528 uint32_t tmp; 1529 int i, error; 1530 1531 for (i = 0; i < length; i ++, offset += sizeof(uint32_t)) { 1532 xfer = fwmem_read_quad(fwdev, NULL, (uint8_t)-1, 1533 0xffff, 0xf0000000 | offset, (void *)&tmp, 1534 fw_xferwake); 1535 if (xfer == NULL) 1536 return (-1); 1537 fw_xferwait(xfer); 1538 1539 if (xfer->resp == 0) 1540 quad[i] = ntohl(tmp); 1541 1542 error = xfer->resp; 1543 fw_xfer_free(xfer); 1544 if (error) 1545 return (error); 1546 } 1547 return (0); 1548 } 1549 1550 1551 static int 1552 fw_explore_csrblock(struct fw_device *fwdev, int offset, int recur) 1553 { 1554 int err, i, off; 1555 struct csrdirectory *dir; 1556 struct csrreg *reg; 1557 1558 dir = (struct csrdirectory *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1559 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1560 (uint32_t *)dir, 1); 1561 if (err) 1562 return (-1); 1563 1564 offset += sizeof(uint32_t); 1565 reg = (struct csrreg *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1566 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1567 (uint32_t *)reg, dir->crc_len); 1568 if (err) 1569 return (-1); 1570 1571 /* XXX check CRC */ 1572 1573 off = CSRROMOFF + offset + sizeof(uint32_t) * (dir->crc_len - 1); 1574 if (fwdev->rommax < off) 1575 fwdev->rommax = off; 1576 1577 if (recur == 0) 1578 return (0); 1579 1580 for (i = 0; (uint)i < dir->crc_len; i ++, offset += sizeof(uint32_t)) { 1581 if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_D) 1582 recur = 1; 1583 else if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_L) 1584 recur = 0; 1585 else 1586 continue; 1587 1588 off = offset + reg[i].val * sizeof(uint32_t); 1589 if (off > CROMSIZE) { 1590 printf("%s: invalid offset %d\n", __FUNCTION__, off); 1591 return(-1); 1592 } 1593 err = fw_explore_csrblock(fwdev, off, recur); 1594 if (err) 1595 return (-1); 1596 } 1597 return (0); 1598 } 1599 1600 static int 1601 fw_explore_node(struct fw_device *dfwdev) 1602 { 1603 struct firewire_comm *fc; 1604 struct fw_device *fwdev, *pfwdev, *tfwdev; 1605 uint32_t *csr; 1606 struct csrhdr *hdr; 1607 struct bus_info *binfo; 1608 int err, node; 1609 uint32_t speed_test = 0; 1610 1611 fc = dfwdev->fc; 1612 csr = dfwdev->csrrom; 1613 node = dfwdev->dst; 1614 1615 /* First quad */ 1616 err = fw_explore_read_quads(dfwdev, CSRROMOFF, &csr[0], 1); 1617 if (err) { 1618 device_printf(fc->bdev, "%s: node%d: explore_read_quads failure\n", 1619 __func__, node); 1620 dfwdev->status = FWDEVINVAL; 1621 return (-1); 1622 } 1623 hdr = (struct csrhdr *)&csr[0]; 1624 if (hdr->info_len != 4) { 1625 if (firewire_debug) 1626 device_printf(fc->bdev, "%s:" 1627 " node%d: wrong bus info len(%d)\n", 1628 __func__, node, hdr->info_len); 1629 dfwdev->status = FWDEVINVAL; 1630 return (-1); 1631 } 1632 1633 /* bus info */ 1634 err = fw_explore_read_quads(dfwdev, CSRROMOFF + 0x04, &csr[1], 4); 1635 if (err) { 1636 device_printf(fc->bdev, "%s: node%d: error reading 0x04\n", 1637 __func__, node); 1638 dfwdev->status = FWDEVINVAL; 1639 return (-1); 1640 } 1641 binfo = (struct bus_info *)&csr[1]; 1642 if (binfo->bus_name != CSR_BUS_NAME_IEEE1394) { 1643 device_printf(fc->bdev, "%s: node%d: invalid bus name 0x%08x\n", 1644 __func__, node, binfo->bus_name); 1645 dfwdev->status = FWDEVINVAL; 1646 return (-1); 1647 } 1648 1649 if (firewire_debug) 1650 device_printf(fc->bdev, "%s: node(%d) BUS INFO BLOCK:\n" 1651 "irmc(%d) cmc(%d) isc(%d) bmc(%d) pmc(%d) " 1652 "cyc_clk_acc(%d) max_rec(%d) max_rom(%d) " 1653 "generation(%d) link_spd(%d)\n", 1654 __func__, node, 1655 binfo->irmc, binfo->cmc, binfo->isc, 1656 binfo->bmc, binfo->pmc, binfo->cyc_clk_acc, 1657 binfo->max_rec, binfo->max_rom, 1658 binfo->generation, binfo->link_spd); 1659 1660 STAILQ_FOREACH(fwdev, &fc->devices, link) 1661 if (FW_EUI64_EQUAL(fwdev->eui, binfo->eui64)) 1662 break; 1663 if (fwdev == NULL) { 1664 /* new device */ 1665 fwdev = (fw_device*)malloc(sizeof(struct fw_device)); 1666 if (fwdev == NULL) { 1667 device_printf(fc->bdev, "%s: node%d: no memory\n", 1668 __func__, node); 1669 return (-1); 1670 } 1671 memset(fwdev, 0, sizeof(struct fw_device)); 1672 fwdev->fc = fc; 1673 fwdev->eui = binfo->eui64; 1674 fwdev->dst = dfwdev->dst; 1675 fwdev->maxrec = dfwdev->maxrec; 1676 fwdev->status = dfwdev->status; 1677 1678 /* 1679 * Pre-1394a-2000 didn't have link_spd in 1680 * the Bus Info block, so try and use the 1681 * speed map value. 1682 * 1394a-2000 compliant devices only use 1683 * the Bus Info Block link spd value, so 1684 * ignore the speed map alltogether. SWB 1685 */ 1686 if ( binfo->link_spd == FWSPD_S100 /* 0 */) { 1687 device_printf(fc->bdev, "%s: " 1688 "Pre 1394a-2000 detected\n", 1689 __func__); 1690 fwdev->speed = fc->speed_map->speed[fc->nodeid][node]; 1691 } else 1692 fwdev->speed = binfo->link_spd; 1693 /* 1694 * Test this speed with a read to the CSRROM. 1695 * If it fails, slow down the speed and retry. 1696 */ 1697 while (fwdev->speed > FWSPD_S100 /* 0 */) { 1698 err = fw_explore_read_quads(fwdev, CSRROMOFF, 1699 &speed_test, 1); 1700 if (err) { 1701 device_printf(fc->bdev, "%s: fwdev->speed(%s)" 1702 " decremented due to negotiation\n", 1703 __func__, 1704 linkspeed[fwdev->speed]); 1705 fwdev->speed--; 1706 } else 1707 break; 1708 1709 } 1710 /* inesrt into sorted fwdev list */ 1711 pfwdev = NULL; 1712 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1713 if (tfwdev->eui.hi > fwdev->eui.hi || 1714 (tfwdev->eui.hi == fwdev->eui.hi && 1715 tfwdev->eui.lo > fwdev->eui.lo)) 1716 break; 1717 pfwdev = tfwdev; 1718 } 1719 if (pfwdev == NULL) 1720 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1721 else 1722 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1723 1724 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1725 linkspeed[fwdev->speed], 1726 fwdev->eui.hi, fwdev->eui.lo); 1727 } else { 1728 fwdev->dst = node; 1729 fwdev->status = FWDEVINIT; 1730 /* unchanged ? */ 1731 if (bcmp(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5) == 0) { 1732 if (firewire_debug) 1733 device_printf(fc->dev, "node%d: crom unchanged\n", node); 1734 return (0); 1735 } 1736 } 1737 1738 bzero(&fwdev->csrrom[0], CROMSIZE); 1739 1740 /* copy first quad and bus info block */ 1741 bcopy(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5); 1742 fwdev->rommax = CSRROMOFF + sizeof(uint32_t) * 4; 1743 1744 err = fw_explore_csrblock(fwdev, 0x14, 1); /* root directory */ 1745 1746 if (err) { 1747 if (firewire_debug) 1748 device_printf(fc->dev, "%s:" 1749 " explore csrblock failed err(%d)\n", 1750 __func__, err); 1751 fwdev->status = FWDEVINVAL; 1752 fwdev->csrrom[0] = 0; 1753 } 1754 return (err); 1755 1756 } 1757 1758 /* 1759 * Find the self_id packet for a node, ignoring sequels. 1760 */ 1761 static union fw_self_id * 1762 fw_find_self_id(struct firewire_comm *fc, int node) 1763 { 1764 uint32_t i; 1765 union fw_self_id *s; 1766 1767 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1768 s = &fc->topology_map->self_id[i]; 1769 if (s->p0.sequel) 1770 continue; 1771 if ((int)s->p0.phy_id == node) 1772 return s; 1773 } 1774 return 0; 1775 } 1776 1777 static void 1778 fw_explore(struct firewire_comm *fc) 1779 { 1780 int node, err, s, i, todo, todo2, trys; 1781 char nodes[63]; 1782 struct fw_device dfwdev; 1783 union fw_self_id *fwsid; 1784 1785 todo = 0; 1786 /* setup dummy fwdev */ 1787 dfwdev.fc = fc; 1788 dfwdev.speed = 0; 1789 dfwdev.maxrec = 8; /* 512 */ 1790 dfwdev.status = FWDEVINIT; 1791 1792 for (node = 0; (uint)node <= fc->max_node; node ++) { 1793 /* We don't probe myself and linkdown nodes */ 1794 if (node == fc->nodeid) { 1795 if (firewire_debug) 1796 device_printf(fc->bdev, "%s:" 1797 " found myself node(%d) fc->nodeid(%d)" 1798 " fc->max_node(%d)\n", 1799 __func__, node, fc->nodeid, fc->max_node); 1800 1801 continue; 1802 } else if (firewire_debug) { 1803 device_printf(fc->bdev, "%s:" 1804 "node(%d) fc->max_node(%d) found\n", 1805 __func__, node, fc->max_node); 1806 } 1807 1808 fwsid = fw_find_self_id(fc, node); 1809 if (!fwsid || !fwsid->p0.link_active) { 1810 if (firewire_debug) 1811 device_printf(fc->bdev, "%s: node%d: link down\n", 1812 __func__, node); 1813 continue; 1814 } 1815 nodes[todo++] = node; 1816 } 1817 1818 s = splfw(); 1819 for (trys = 0; todo > 0 && trys < 3; trys ++) { 1820 todo2 = 0; 1821 for (i = 0; i < todo; i ++) { 1822 dfwdev.dst = nodes[i]; 1823 err = fw_explore_node(&dfwdev); 1824 if (err) 1825 nodes[todo2++] = nodes[i]; 1826 if (firewire_debug) 1827 device_printf(fc->bdev, "%s: node %d, err = %d\n", 1828 __func__, node, err); 1829 } 1830 todo = todo2; 1831 } 1832 splx(s); 1833 } 1834 1835 1836 static int32 1837 fw_bus_probe_thread(void *arg) 1838 { 1839 struct firewire_comm *fc; 1840 1841 fc = (struct firewire_comm *)arg; 1842 mtx_lock(&fc->wait_lock); 1843 while (fc->status != (uint32_t)FWBUSDETACH) { 1844 if (fc->status == FWBUSEXPLORE) { 1845 mtx_unlock(&fc->wait_lock); 1846 fw_explore(fc); 1847 fc->status = FWBUSEXPDONE; 1848 if (firewire_debug) 1849 printf("bus_explore done\n"); 1850 fw_attach_dev(fc); 1851 mtx_lock(&fc->wait_lock); 1852 } 1853 // msleep((void *)fc, &fc->wait_lock, PWAIT|PCATCH, "-", 0); 1854 mtx_unlock(&fc->wait_lock); 1855 acquire_sem(fc->Sem); 1856 mtx_lock(&fc->wait_lock); 1857 1858 } 1859 mtx_unlock(&fc->wait_lock); 1860 // kproc_exit(0); 1861 return 0; 1862 } 1863 1864 /* 1865 * To attach sub-devices layer onto IEEE1394 bus. 1866 */ 1867 static void 1868 fw_attach_dev(struct firewire_comm *fc) 1869 { 1870 struct fw_device *fwdev, *next; 1871 // int i, err; 1872 // device_t *devlistp; 1873 // int devcnt; 1874 struct firewire_dev_comm *fdc; 1875 struct firewire_child_info *element = fc->childList; 1876 1877 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1878 next = STAILQ_NEXT(fwdev, link); 1879 if (fwdev->status == FWDEVINIT) { 1880 fwdev->status = FWDEVATTACHED; 1881 } else if (fwdev->status == FWDEVINVAL) { 1882 fwdev->rcnt ++; 1883 if (firewire_debug) 1884 device_printf(fc->bdev, "%s:" 1885 "fwdev->rcnt(%d), hold_count(%d)\n", 1886 __func__, fwdev->rcnt, hold_count); 1887 if (fwdev->rcnt > hold_count) { 1888 /* 1889 * Remove devices which have not been seen 1890 * for a while. 1891 */ 1892 device_printf(fc->bdev, "%s:" 1893 "Removing missing device ID:%08x%08x\n", 1894 __func__, fwdev->eui.hi, fwdev->eui.lo); 1895 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1896 link); 1897 free(fwdev); 1898 } 1899 } 1900 } 1901 1902 /* err = device_get_children(fc->bdev, &devlistp, &devcnt); 1903 if( err == 0 ) { 1904 for( i = 0 ; i < devcnt ; i++){ 1905 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1906 fdc = device_get_softc(devlistp[i]); 1907 if (fdc->post_explore != NULL) 1908 fdc->post_explore(fdc); 1909 } 1910 } 1911 free(devlistp, M_TEMP); 1912 }*/ 1913 1914 while(element){ 1915 // fdc = &element->cookie.fd; 1916 fdc = (struct firewire_dev_comm *)element->cookie; 1917 if (fdc->post_explore != NULL) 1918 fdc->post_explore(fdc); 1919 element = element->link; 1920 } 1921 1922 1923 return; 1924 } 1925 1926 /* 1927 * To allocate unique transaction label. 1928 */ 1929 static int 1930 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1931 { 1932 u_int dst, new_tlabel; 1933 struct fw_xfer *txfer; 1934 int s; 1935 1936 dst = xfer->send.hdr.mode.hdr.dst & 0x3f; 1937 s = splfw(); 1938 mtx_lock(&fc->tlabel_lock); 1939 new_tlabel = (fc->last_tlabel[dst] + 1) & 0x3f; 1940 STAILQ_FOREACH(txfer, &fc->tlabels[new_tlabel], tlabel) 1941 if ((txfer->send.hdr.mode.hdr.dst & 0x3f) == dst) 1942 break; 1943 if(txfer == NULL) { 1944 fc->last_tlabel[dst] = new_tlabel; 1945 STAILQ_INSERT_TAIL(&fc->tlabels[new_tlabel], xfer, tlabel); 1946 mtx_unlock(&fc->tlabel_lock); 1947 splx(s); 1948 xfer->tl = new_tlabel; 1949 xfer->send.hdr.mode.hdr.tlrt = new_tlabel << 2; 1950 if (firewire_debug > 1) 1951 printf("fw_get_tlabel: dst=%d tl=%d\n", dst, new_tlabel); 1952 return (new_tlabel); 1953 } 1954 mtx_unlock(&fc->tlabel_lock); 1955 splx(s); 1956 1957 if (firewire_debug > 1) 1958 printf("fw_get_tlabel: no free tlabel\n"); 1959 return (-1); 1960 } 1961 1962 static void 1963 fw_rcv_copy(struct fw_rcv_buf *rb) 1964 { 1965 struct fw_pkt *pkt; 1966 u_char *p; 1967 struct tcode_info *tinfo; 1968 u_int res, i, len, plen; 1969 1970 rb->xfer->recv.spd = rb->spd; 1971 1972 pkt = (struct fw_pkt *)rb->vec->iov_base; 1973 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1974 1975 /* Copy header */ 1976 p = (u_char *)&rb->xfer->recv.hdr; 1977 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1978 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1979 rb->vec->iov_len -= tinfo->hdr_len; 1980 1981 /* Copy payload */ 1982 p = (u_char *)rb->xfer->recv.payload; 1983 res = rb->xfer->recv.pay_len; 1984 1985 /* special handling for RRESQ */ 1986 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1987 p != NULL && res >= sizeof(uint32_t)) { 1988 *(uint32_t *)p = pkt->mode.rresq.data; 1989 rb->xfer->recv.pay_len = sizeof(uint32_t); 1990 return; 1991 } 1992 1993 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1994 return; 1995 1996 plen = pkt->mode.rresb.len; 1997 1998 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1999 len = MIN(rb->vec->iov_len, plen); 2000 if (res < len) { 2001 device_printf(rb->fc->bdev, "%s:" 2002 " rcv buffer(%d) is %d bytes short.\n", 2003 __func__, rb->xfer->recv.pay_len, len - res); 2004 len = res; 2005 } 2006 bcopy(rb->vec->iov_base, p, len); 2007 p += len; 2008 res -= len; 2009 plen -= len; 2010 if (res == 0 || plen == 0) 2011 break; 2012 } 2013 rb->xfer->recv.pay_len -= res; 2014 2015 } 2016 2017 /* 2018 * Generic packet receiving process. 2019 */ 2020 void 2021 fw_rcv(struct fw_rcv_buf *rb) 2022 { 2023 struct fw_pkt *fp, *resfp; 2024 struct fw_bind *bind; 2025 int tcode; 2026 int i, len, oldstate; 2027 #if 0 2028 { 2029 uint32_t *qld; 2030 int i; 2031 qld = (uint32_t *)buf; 2032 printf("spd %d len:%d\n", spd, len); 2033 for( i = 0 ; i <= len && i < 32; i+= 4){ 2034 printf("0x%08x ", ntohl(qld[i/4])); 2035 if((i % 16) == 15) printf("\n"); 2036 } 2037 if((i % 16) != 15) printf("\n"); 2038 } 2039 #endif 2040 fp = (struct fw_pkt *)rb->vec[0].iov_base; 2041 tcode = fp->mode.common.tcode; 2042 switch (tcode) { 2043 case FWTCODE_WRES: 2044 case FWTCODE_RRESQ: 2045 case FWTCODE_RRESB: 2046 case FWTCODE_LRES: 2047 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 2048 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tcode); 2049 if(rb->xfer == NULL) { 2050 device_printf(rb->fc->bdev, "%s: " 2051 "unknown response " 2052 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 2053 __func__, 2054 tcode_str[tcode], tcode, 2055 fp->mode.hdr.src, 2056 fp->mode.hdr.tlrt >> 2, 2057 fp->mode.hdr.tlrt & 3, 2058 fp->mode.rresq.data); 2059 #if 0 2060 printf("try ad-hoc work around!!\n"); 2061 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 2062 (fp->mode.hdr.tlrt >> 2)^3); 2063 if (rb->xfer == NULL) { 2064 printf("no use...\n"); 2065 return; 2066 } 2067 #else 2068 return; 2069 #endif 2070 } 2071 fw_rcv_copy(rb); 2072 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 2073 rb->xfer->resp = EIO; 2074 else 2075 rb->xfer->resp = 0; 2076 /* make sure the packet is drained in AT queue */ 2077 oldstate = rb->xfer->flag; 2078 rb->xfer->flag = FWXF_RCVD; 2079 switch (oldstate) { 2080 case FWXF_SENT: 2081 fw_xfer_done(rb->xfer); 2082 break; 2083 case FWXF_START: 2084 #if 0 2085 if (firewire_debug) 2086 printf("not sent yet tl=%x\n", rb->xfer->tl); 2087 #endif 2088 break; 2089 default: 2090 device_printf(rb->fc->bdev, "%s: " 2091 "unexpected flag 0x%02x\n", __func__, rb->xfer->flag); 2092 2093 } 2094 return; 2095 case FWTCODE_WREQQ: 2096 case FWTCODE_WREQB: 2097 case FWTCODE_RREQQ: 2098 case FWTCODE_RREQB: 2099 case FWTCODE_LREQ: 2100 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 2101 fp->mode.rreqq.dest_lo); 2102 if(bind == NULL){ 2103 device_printf(rb->fc->bdev, "%s: " 2104 "Unknown service addr 0x%04x:0x%08x %s(%x)" 2105 " src=0x%x data=%u\n", 2106 __func__, 2107 fp->mode.wreqq.dest_hi, 2108 fp->mode.wreqq.dest_lo, 2109 tcode_str[tcode], tcode, 2110 fp->mode.hdr.src, 2111 ntohl(fp->mode.wreqq.data)); 2112 2113 if (rb->fc->status == FWBUSINIT) { 2114 device_printf(rb->fc->bdev, "%s: " 2115 "cannot respond(bus reset)!\n", 2116 __func__); 2117 return; 2118 } 2119 rb->xfer = fw_xfer_alloc(); 2120 if(rb->xfer == NULL){ 2121 return; 2122 } 2123 rb->xfer->send.spd = rb->spd; 2124 rb->xfer->send.pay_len = 0; 2125 resfp = &rb->xfer->send.hdr; 2126 switch (tcode) { 2127 case FWTCODE_WREQQ: 2128 case FWTCODE_WREQB: 2129 resfp->mode.hdr.tcode = FWTCODE_WRES; 2130 break; 2131 case FWTCODE_RREQQ: 2132 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 2133 break; 2134 case FWTCODE_RREQB: 2135 resfp->mode.hdr.tcode = FWTCODE_RRESB; 2136 break; 2137 case FWTCODE_LREQ: 2138 resfp->mode.hdr.tcode = FWTCODE_LRES; 2139 break; 2140 } 2141 resfp->mode.hdr.dst = fp->mode.hdr.src; 2142 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 2143 resfp->mode.hdr.pri = fp->mode.hdr.pri; 2144 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 2145 resfp->mode.rresb.extcode = 0; 2146 resfp->mode.rresb.len = 0; 2147 /* 2148 rb->xfer->hand = fw_xferwake; 2149 */ 2150 rb->xfer->hand = fw_xfer_free; 2151 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 2152 fw_xfer_free(rb->xfer); 2153 return; 2154 } 2155 return; 2156 } 2157 len = 0; 2158 for (i = 0; (uint)i < rb->nvec; i ++) 2159 len += rb->vec[i].iov_len; 2160 rb->xfer = STAILQ_FIRST(&bind->xferlist); 2161 if (rb->xfer == NULL) { 2162 device_printf(rb->fc->bdev, "%s: " 2163 "Discard a packet for this bind.\n", 2164 __func__); 2165 return; 2166 } 2167 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 2168 fw_rcv_copy(rb); 2169 rb->xfer->hand(rb->xfer); 2170 return; 2171 #if 0 /* shouldn't happen ?? or for GASP */ 2172 case FWTCODE_STREAM: 2173 { 2174 struct fw_xferq *xferq; 2175 2176 xferq = rb->fc->ir[sub]; 2177 #if 0 2178 printf("stream rcv dma %d len %d off %d spd %d\n", 2179 sub, len, off, spd); 2180 #endif 2181 if(xferq->queued >= xferq->maxq) { 2182 printf("receive queue is full\n"); 2183 return; 2184 } 2185 /* XXX get xfer from xfer queue, we don't need copy for 2186 per packet mode */ 2187 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 2188 vec[0].iov_len); 2189 if (rb->xfer == NULL) 2190 return; 2191 fw_rcv_copy(rb) 2192 s = splfw(); 2193 xferq->queued++; 2194 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 2195 splx(s); 2196 sc = device_get_softc(rb->fc->bdev); 2197 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2198 if (&xferq->rsel.si_pid != 0) 2199 #else 2200 if (SEL_WAITING(&xferq->rsel)) 2201 #endif 2202 selwakeuppri(&xferq->rsel, FWPRI); 2203 if (xferq->flag & FWXFERQ_WAKEUP) { 2204 xferq->flag &= ~FWXFERQ_WAKEUP; 2205 wakeup((caddr_t)xferq); 2206 } 2207 if (xferq->flag & FWXFERQ_HANDLER) { 2208 xferq->hand(xferq); 2209 } 2210 return; 2211 break; 2212 } 2213 #endif 2214 default: 2215 device_printf(rb->fc->bdev,"%s: unknown tcode %d\n", 2216 __func__, tcode); 2217 break; 2218 } 2219 } 2220 2221 /* 2222 * Post process for Bus Manager election process. 2223 */ 2224 static void 2225 fw_try_bmr_callback(struct fw_xfer *xfer) 2226 { 2227 struct firewire_comm *fc; 2228 int bmr; 2229 2230 if (xfer == NULL) 2231 return; 2232 fc = xfer->fc; 2233 if (xfer->resp != 0) 2234 goto error; 2235 if (xfer->recv.payload == NULL) 2236 goto error; 2237 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2238 goto error; 2239 2240 bmr = ntohl(xfer->recv.payload[0]); 2241 if (bmr == 0x3f) 2242 bmr = fc->nodeid; 2243 2244 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2245 fw_xfer_free_buf(xfer); 2246 fw_bmr(fc); 2247 return; 2248 2249 error: 2250 device_printf(fc->bdev, "bus manager election failed\n"); 2251 fw_xfer_free_buf(xfer); 2252 } 2253 2254 2255 /* 2256 * To candidate Bus Manager election process. 2257 */ 2258 static void 2259 fw_try_bmr(void *arg) 2260 { 2261 struct fw_xfer *xfer; 2262 struct firewire_comm *fc = (struct firewire_comm *)arg; 2263 struct fw_pkt *fp; 2264 int err = 0; 2265 2266 xfer = fw_xfer_alloc_buf(8, 4); 2267 if(xfer == NULL){ 2268 return; 2269 } 2270 xfer->send.spd = 0; 2271 fc->status = FWBUSMGRELECT; 2272 2273 fp = &xfer->send.hdr; 2274 fp->mode.lreq.dest_hi = 0xffff; 2275 fp->mode.lreq.tlrt = 0; 2276 fp->mode.lreq.tcode = FWTCODE_LREQ; 2277 fp->mode.lreq.pri = 0; 2278 fp->mode.lreq.src = 0; 2279 fp->mode.lreq.len = 8; 2280 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2281 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2282 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2283 xfer->send.payload[0] = htonl(0x3f); 2284 xfer->send.payload[1] = htonl(fc->nodeid); 2285 xfer->hand = fw_try_bmr_callback; 2286 2287 err = fw_asyreq(fc, -1, xfer); 2288 if(err){ 2289 fw_xfer_free_buf(xfer); 2290 return; 2291 } 2292 return; 2293 } 2294 2295 #ifdef FW_VMACCESS 2296 /* 2297 * Software implementation for physical memory block access. 2298 * XXX:Too slow, usef for debug purpose only. 2299 */ 2300 static void 2301 fw_vmaccess(struct fw_xfer *xfer){ 2302 struct fw_pkt *rfp, *sfp = NULL; 2303 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2304 2305 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2306 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2307 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2308 if(xfer->resp != 0){ 2309 fw_xfer_free( xfer); 2310 return; 2311 } 2312 if(xfer->recv.buf == NULL){ 2313 fw_xfer_free( xfer); 2314 return; 2315 } 2316 rfp = (struct fw_pkt *)xfer->recv.buf; 2317 switch(rfp->mode.hdr.tcode){ 2318 /* XXX need fix for 64bit arch */ 2319 case FWTCODE_WREQB: 2320 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2321 xfer->send.len = 12; 2322 sfp = (struct fw_pkt *)xfer->send.buf; 2323 bcopy(rfp->mode.wreqb.payload, 2324 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2325 sfp->mode.wres.tcode = FWTCODE_WRES; 2326 sfp->mode.wres.rtcode = 0; 2327 break; 2328 case FWTCODE_WREQQ: 2329 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2330 xfer->send.len = 12; 2331 sfp->mode.wres.tcode = FWTCODE_WRES; 2332 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2333 sfp->mode.wres.rtcode = 0; 2334 break; 2335 case FWTCODE_RREQB: 2336 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2337 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2338 sfp = (struct fw_pkt *)xfer->send.buf; 2339 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2340 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2341 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2342 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2343 sfp->mode.rresb.rtcode = 0; 2344 sfp->mode.rresb.extcode = 0; 2345 break; 2346 case FWTCODE_RREQQ: 2347 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2348 xfer->send.len = 16; 2349 sfp = (struct fw_pkt *)xfer->send.buf; 2350 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2351 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2352 sfp->mode.rresb.rtcode = 0; 2353 break; 2354 default: 2355 fw_xfer_free( xfer); 2356 return; 2357 } 2358 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2359 xfer->dst = ntohs(rfp->mode.hdr.src); 2360 xfer->hand = fw_xfer_free; 2361 2362 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2363 sfp->mode.hdr.pri = 0; 2364 2365 fw_asyreq(xfer->fc, -1, xfer); 2366 /**/ 2367 return; 2368 } 2369 #endif 2370 2371 /* 2372 * CRC16 check-sum for IEEE1394 register blocks. 2373 */ 2374 uint16_t 2375 fw_crc16(uint32_t *ptr, uint32_t len){ 2376 uint32_t i, sum, crc = 0; 2377 int shift; 2378 len = (len + 3) & ~3; 2379 for(i = 0 ; i < len ; i+= 4){ 2380 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2381 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2382 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2383 } 2384 crc &= 0xffff; 2385 } 2386 return((uint16_t) crc); 2387 } 2388 2389 /* 2390 * Find the root node, if it is not 2391 * Cycle Master Capable, then we should 2392 * override this and become the Cycle 2393 * Master 2394 */ 2395 static int 2396 fw_bmr(struct firewire_comm *fc) 2397 { 2398 struct fw_device fwdev; 2399 union fw_self_id *self_id; 2400 int cmstr; 2401 uint32_t quad; 2402 2403 /* Check to see if the current root node is cycle master capable */ 2404 self_id = fw_find_self_id(fc, fc->max_node); 2405 if (fc->max_node > 0) { 2406 /* XXX check cmc bit of businfo block rather than contender */ 2407 if (self_id->p0.link_active && self_id->p0.contender) 2408 cmstr = fc->max_node; 2409 else { 2410 device_printf(fc->bdev, 2411 "root node is not cycle master capable\n"); 2412 /* XXX shall we be the cycle master? */ 2413 cmstr = fc->nodeid; 2414 /* XXX need bus reset */ 2415 } 2416 } else 2417 cmstr = -1; 2418 2419 device_printf(fc->bdev, "bus manager %d %s\n", 2420 CSRARC(fc, BUS_MGR_ID), 2421 (CSRARC(fc, BUS_MGR_ID) != fc->nodeid) ? "(me)" : ""); 2422 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2423 /* We are not the bus manager */ 2424 return(0); 2425 } 2426 2427 /* Optimize gapcount */ 2428 if(fc->max_hop <= MAX_GAPHOP ) 2429 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2430 /* If we are the cycle master, nothing to do */ 2431 if (cmstr == fc->nodeid || cmstr == -1) 2432 return 0; 2433 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2434 bzero(&fwdev, sizeof(fwdev)); 2435 fwdev.fc = fc; 2436 fwdev.dst = cmstr; 2437 fwdev.speed = 0; 2438 fwdev.maxrec = 8; /* 512 */ 2439 fwdev.status = FWDEVINIT; 2440 /* Set cmstr bit on the cycle master */ 2441 quad = htonl(1 << 8); 2442 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2443 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2444 2445 return 0; 2446 } 2447 2448 int 2449 fw_open_isodma(struct firewire_comm *fc, int tx) 2450 { 2451 struct fw_xferq **xferqa; 2452 struct fw_xferq *xferq; 2453 int i; 2454 2455 if (tx) 2456 xferqa = &fc->it[0]; 2457 else 2458 xferqa = &fc->ir[0]; 2459 2460 FW_GLOCK(fc); 2461 for (i = 0; i < fc->nisodma; i ++) { 2462 xferq = xferqa[i]; 2463 if ((xferq->flag & FWXFERQ_OPEN) == 0) { 2464 xferq->flag |= FWXFERQ_OPEN; 2465 break; 2466 } 2467 } 2468 if (i == fc->nisodma) { 2469 printf("no free dma channel (tx=%d)\n", tx); 2470 i = -1; 2471 } 2472 FW_GUNLOCK(fc); 2473 return (i); 2474 } 2475