1 /* 2 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the acknowledgement as bellow: 15 * 16 * This product includes software developed by K. Kobayashi and H. Shimokawa 17 * 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 24 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 27 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 29 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 30 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 * 33 * $FreeBSD$ 34 * 35 */ 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/types.h> 40 #include <sys/mbuf.h> 41 #include <sys/socket.h> 42 #include <sys/socketvar.h> 43 44 #include <sys/kernel.h> 45 #include <sys/malloc.h> 46 #include <sys/conf.h> 47 #include <sys/uio.h> 48 #include <sys/sysctl.h> 49 50 #include <machine/cpufunc.h> /* for rdtsc proto for clock.h below */ 51 #include <machine/clock.h> 52 53 #include <sys/bus.h> /* used by smbus and newbus */ 54 55 #include <dev/firewire/firewire.h> 56 #include <dev/firewire/firewirereg.h> 57 #include <dev/firewire/iec13213.h> 58 #include <dev/firewire/iec68113.h> 59 60 int firewire_debug=0; 61 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 62 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 63 "FireWire driver debug flag"); 64 65 #define FW_MAXASYRTY 4 66 #define FW_MAXDEVRCNT 4 67 68 #define XFER_TIMEOUT 0 69 70 devclass_t firewire_devclass; 71 72 static int firewire_match __P((device_t)); 73 static int firewire_attach __P((device_t)); 74 static int firewire_detach __P((device_t)); 75 #if 0 76 static int firewire_shutdown __P((device_t)); 77 #endif 78 static device_t firewire_add_child __P((device_t, int, const char *, int)); 79 static void fw_try_bmr __P((void *)); 80 static void fw_try_bmr_callback __P((struct fw_xfer *)); 81 static void fw_asystart __P((struct fw_xfer *)); 82 static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *)); 83 static void fw_bus_probe __P((struct firewire_comm *)); 84 static void fw_bus_explore __P((struct firewire_comm *)); 85 static void fw_bus_explore_callback __P((struct fw_xfer *)); 86 static void fw_attach_dev __P((struct firewire_comm *)); 87 #ifdef FW_VMACCESS 88 static void fw_vmaccess __P((struct fw_xfer *)); 89 #endif 90 struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 91 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *)))); 92 93 static device_method_t firewire_methods[] = { 94 /* Device interface */ 95 DEVMETHOD(device_probe, firewire_match), 96 DEVMETHOD(device_attach, firewire_attach), 97 DEVMETHOD(device_detach, firewire_detach), 98 DEVMETHOD(device_suspend, bus_generic_suspend), 99 DEVMETHOD(device_resume, bus_generic_resume), 100 DEVMETHOD(device_shutdown, bus_generic_shutdown), 101 102 /* Bus interface */ 103 DEVMETHOD(bus_add_child, firewire_add_child), 104 DEVMETHOD(bus_print_child, bus_generic_print_child), 105 106 { 0, 0 } 107 }; 108 char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"}; 109 110 #define MAX_GAPHOP 16 111 u_int gap_cnt[] = {1, 1, 4, 6, 9, 12, 14, 17, 112 20, 23, 25, 28, 31, 33, 36, 39, 42}; 113 114 extern struct cdevsw firewire_cdevsw; 115 116 static driver_t firewire_driver = { 117 "firewire", 118 firewire_methods, 119 sizeof(struct firewire_softc), 120 }; 121 122 /* 123 * transmitter buffer update. 124 */ 125 int 126 fw_tbuf_update(struct firewire_comm *fc, int sub, int flag){ 127 struct fw_bulkxfer *bulkxfer, *bulkxfer2 = NULL; 128 struct fw_dvbuf *dvbuf = NULL; 129 struct fw_xferq *it; 130 int s, err = 0, i, j, chtag; 131 struct fw_pkt *fp; 132 u_int64_t tmpsync, dvsync; 133 134 it = fc->it[sub]; 135 136 s = splfw(); 137 if(it->stdma == NULL){ 138 bulkxfer = STAILQ_FIRST(&it->stvalid); 139 }else if(flag != 0){ 140 bulkxfer = STAILQ_FIRST(&it->stvalid); 141 if(bulkxfer == it->stdma){ 142 STAILQ_REMOVE_HEAD(&it->stvalid, link); 143 it->stdma->flag = 0; 144 STAILQ_INSERT_TAIL(&it->stfree, it->stdma, link); 145 if(!(it->flag & FWXFERQ_DV)) 146 wakeup(it); 147 } 148 bulkxfer = STAILQ_FIRST(&it->stvalid); 149 }else{ 150 bulkxfer = it->stdma; 151 } 152 splx(s); 153 if(bulkxfer != NULL){ 154 s = splfw(); 155 bulkxfer2 = STAILQ_NEXT(bulkxfer, link); 156 #if 0 157 if(it->flag & FWXFERQ_DV && bulkxfer2 == NULL){ 158 bulkxfer2 = STAILQ_FIRST(&it->stfree); 159 STAILQ_REMOVE_HEAD(&it->stfree, link); 160 splx(s); 161 bcopy(bulkxfer->buf, bulkxfer2->buf, 162 it->psize * it->btpacket); 163 s = splfw(); 164 STAILQ_INSERT_TAIL(&it->stvalid, bulkxfer2, link); 165 } 166 #endif 167 splx(s); 168 } 169 it->stdma = bulkxfer; 170 it->stdma2 = bulkxfer2; 171 172 if(it->flag & FWXFERQ_DV){ 173 chtag = it->flag & 0xff; 174 dvloop: 175 if(it->dvdma == NULL){ 176 dvbuf = STAILQ_FIRST(&it->dvvalid); 177 if(dvbuf != NULL){ 178 s = splfw(); 179 STAILQ_REMOVE_HEAD(&it->dvvalid, link); 180 it->dvdma = dvbuf; 181 splx(s); 182 it->queued = 0; 183 } 184 } 185 if(it->dvdma == NULL) 186 return err; 187 188 it->stproc = STAILQ_FIRST(&it->stfree); 189 if(it->stproc != NULL){ 190 s = splfw(); 191 STAILQ_REMOVE_HEAD(&it->stfree, link); 192 splx(s); 193 }else{ 194 return err; 195 } 196 /* 197 * Insert least significant 12 bits timestamp value by computation. 198 * Highest significant 4 bits is insert at just before packet sending. 199 */ 200 fp = (struct fw_pkt *)(it->stproc->buf); 201 /* XXX: Parameter relies on NTSC type DV video */ 202 tmpsync = (u_int64_t)3072 * 8000 * 100 / 2997; 203 tmpsync *= it->dvsync; 204 dvsync = tmpsync; 205 dvsync %= 0xc00; 206 fp->mode.ld[2] = htonl(0x80000000 | (dvsync % 0xc00)); 207 it->dvsync ++; 208 it->dvsync %= 2997; 209 210 for( i = 0, j = 0 ; i < it->dvpacket ; i++){ 211 bcopy(it->dvdma->buf + it->queued * it->psize, 212 it->stproc->buf + j * it->psize, it->psize); 213 fp = (struct fw_pkt *)(it->stproc->buf + j * it->psize); 214 fp->mode.stream.len = htons(488); 215 fp->mode.stream.chtag = chtag; 216 fp->mode.stream.tcode = FWTCODE_STREAM; 217 fp->mode.ld[1] = htonl((fc->nodeid << 24) | 0x00780000 | it->dvdbc); 218 it->dvdbc++; 219 it->dvdbc %= 256; 220 it->queued ++; 221 j++; 222 /* XXX: Parameter relies on NTSC type DV video */ 223 #if 1 224 #define DVDIFF 203 225 #define DVFRAC 2997 226 #else 227 #define DVDIFF 127 228 #define DVFRAC 1875 229 #endif 230 it->dvdiff += DVDIFF; 231 if(it->dvdiff >= DVFRAC){ 232 it->dvdiff %= DVFRAC; 233 fp = (struct fw_pkt *)(it->stproc->buf + j * it->psize); 234 235 fp->mode.stream.len = htons(0x8); 236 fp->mode.stream.chtag = chtag; 237 fp->mode.stream.tcode = FWTCODE_STREAM; 238 fp->mode.ld[1] = htonl((fc->nodeid << 24) | 239 0x00780000 | it->dvdbc); 240 j++; 241 } 242 } 243 it->stproc->npacket = j; 244 s = splfw(); 245 STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link); 246 splx(s); 247 if(it->queued >= it->dvpacket){ 248 s = splfw(); 249 STAILQ_INSERT_TAIL(&it->dvfree, it->dvdma, link); 250 it->dvdma = NULL; 251 splx(s); 252 wakeup(it); 253 goto dvloop; 254 } 255 } 256 return err; 257 } 258 /* 259 * receving buffer update. 260 */ 261 int 262 fw_rbuf_update(struct firewire_comm *fc, int sub, int flag){ 263 struct fw_bulkxfer *bulkxfer, *bulkxfer2 = NULL; 264 struct fw_xferq *ir; 265 int s, err = 0; 266 267 ir = fc->ir[sub]; 268 s = splfw(); 269 if(ir->stdma != NULL){ 270 if(flag != 0){ 271 STAILQ_INSERT_TAIL(&ir->stvalid, ir->stdma, link); 272 }else{ 273 ir->stdma->flag = 0; 274 STAILQ_INSERT_TAIL(&ir->stfree, ir->stdma, link); 275 } 276 } 277 if(ir->stdma2 != NULL){ 278 bulkxfer = ir->stdma2; 279 bulkxfer2 = STAILQ_FIRST(&ir->stfree); 280 if(bulkxfer2 != NULL){ 281 STAILQ_REMOVE_HEAD(&ir->stfree, link); 282 } 283 }else{ 284 bulkxfer = STAILQ_FIRST(&ir->stfree); 285 if(bulkxfer != NULL){ 286 STAILQ_REMOVE_HEAD(&ir->stfree, link); 287 bulkxfer2 = STAILQ_FIRST(&ir->stfree); 288 if(bulkxfer2 != NULL){ 289 STAILQ_REMOVE_HEAD(&ir->stfree, link); 290 } 291 }else{ 292 bulkxfer = STAILQ_FIRST(&ir->stvalid); 293 STAILQ_REMOVE_HEAD(&ir->stvalid, link); 294 } 295 } 296 splx(s); 297 ir->stdma = bulkxfer; 298 ir->stdma2 = bulkxfer2; 299 return err; 300 } 301 302 /* 303 * To lookup node id. from EUI64. 304 */ 305 struct fw_device * 306 fw_noderesolve(struct firewire_comm *fc, struct fw_eui64 eui) 307 { 308 struct fw_device *fwdev; 309 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 310 fwdev = TAILQ_NEXT(fwdev, link)){ 311 if(fwdev->eui.hi == eui.hi && fwdev->eui.lo == eui.lo){ 312 break; 313 } 314 } 315 if(fwdev == NULL) return NULL; 316 if(fwdev->status == FWDEVINVAL) return NULL; 317 return fwdev; 318 } 319 320 /* 321 * Async. request procedure for userland application. 322 */ 323 int 324 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 325 { 326 int err = 0; 327 struct fw_xferq *xferq; 328 int tl = 0, len; 329 struct fw_pkt *fp; 330 int tcode; 331 struct tcode_info *info; 332 333 if(xfer == NULL) return EINVAL; 334 if(xfer->send.len > MAXREC(fc->maxrec)){ 335 printf("send.len > maxrec\n"); 336 return EINVAL; 337 } 338 if(xfer->act.hand == NULL){ 339 printf("act.hand == NULL\n"); 340 return EINVAL; 341 } 342 fp = (struct fw_pkt *)xfer->send.buf; 343 344 tcode = fp->mode.common.tcode & 0xf; 345 info = &fc->tcode[tcode]; 346 if (info->flag == 0) { 347 printf("invalid tcode=%d\n", tcode); 348 return EINVAL; 349 } 350 if (info->flag & FWTI_REQ) 351 xferq = fc->atq; 352 else 353 xferq = fc->ats; 354 len = info->hdr_len; 355 if (info->flag & FWTI_BLOCK_STR) 356 len += ntohs(fp->mode.stream.len); 357 else if (info->flag & FWTI_BLOCK_ASY) 358 len += ntohs(fp->mode.rresb.len); 359 if( len > xfer->send.len ){ 360 printf("len(%d) > send.len(%d) (tcode=%d)\n", 361 len, xfer->send.len, tcode); 362 return EINVAL; 363 } 364 xfer->send.len = len; 365 366 if(xferq->start == NULL){ 367 printf("xferq->start == NULL\n"); 368 return EINVAL; 369 } 370 if(!(xferq->queued < xferq->maxq)){ 371 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 372 xferq->queued); 373 return EINVAL; 374 } 375 376 377 if (info->flag & FWTI_TLABEL) { 378 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 379 return EIO; 380 fp->mode.hdr.tlrt = tl << 2; 381 } 382 383 xfer->tl = tl; 384 xfer->tcode = tcode; 385 xfer->resp = 0; 386 xfer->fc = fc; 387 xfer->q = xferq; 388 xfer->act_type = FWACT_XFER; 389 xfer->retry_req = fw_asybusy; 390 391 fw_asystart(xfer); 392 return err; 393 } 394 /* 395 * Wakeup blocked process. 396 */ 397 void 398 fw_asy_callback(struct fw_xfer *xfer){ 399 wakeup(xfer); 400 return; 401 } 402 /* 403 * Postpone to later retry. 404 */ 405 void fw_asybusy(struct fw_xfer *xfer){ 406 #if 1 407 printf("fw_asybusy\n"); 408 #endif 409 #if XFER_TIMEOUT 410 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 411 #endif 412 /* 413 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 414 */ 415 DELAY(20000); 416 fw_asystart(xfer); 417 return; 418 } 419 #if XFER_TIMEOUT 420 /* 421 * Post timeout for async. request. 422 */ 423 void 424 fw_xfer_timeout(void *arg) 425 { 426 int s; 427 struct fw_xfer *xfer; 428 429 xfer = (struct fw_xfer *)arg; 430 printf("fw_xfer_timeout status=%d resp=%d\n", xfer->state, xfer->resp); 431 /* XXX set error code */ 432 s = splfw(); 433 xfer->act.hand(xfer); 434 splx(s); 435 } 436 #endif 437 /* 438 * Async. request with given xfer structure. 439 */ 440 static void 441 fw_asystart(struct fw_xfer *xfer) 442 { 443 struct firewire_comm *fc = xfer->fc; 444 int s; 445 if(xfer->retry++ >= fc->max_asyretry){ 446 xfer->resp = EBUSY; 447 xfer->state = FWXF_BUSY; 448 xfer->act.hand(xfer); 449 return; 450 } 451 #if 0 /* XXX allow bus explore packets only after bus rest */ 452 if (fc->status < FWBUSEXPLORE) { 453 xfer->resp = EAGAIN; 454 xfer->state = FWXF_BUSY; 455 if (xfer->act.hand != NULL) 456 xfer->act.hand(xfer); 457 return; 458 } 459 #endif 460 s = splfw(); 461 xfer->state = FWXF_INQ; 462 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 463 xfer->q->queued ++; 464 splx(s); 465 /* XXX just queue for mbuf */ 466 if (xfer->mbuf == NULL) 467 xfer->q->start(fc); 468 #if XFER_TIMEOUT 469 if (xfer->act.hand != NULL) 470 xfer->ch = timeout(fw_xfer_timeout, (void *)xfer, hz); 471 #endif 472 return; 473 } 474 475 static int 476 firewire_match( device_t dev ) 477 { 478 device_set_desc(dev, "IEEE1394(FireWire) bus"); 479 return -140; 480 } 481 482 /* 483 * The attach routine. 484 */ 485 static int 486 firewire_attach( device_t dev ) 487 { 488 int i, unitmask, mn; 489 struct firewire_softc *sc = device_get_softc(dev); 490 device_t pa = device_get_parent(dev); 491 struct firewire_comm *fc; 492 dev_t d; 493 494 fc = (struct firewire_comm *)device_get_softc(pa); 495 sc->fc = fc; 496 497 unitmask = UNIT2MIN(device_get_unit(dev)); 498 499 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 500 for ( i = 0 ; i < fc->nisodma ; i++ ){ 501 mn = unitmask | i; 502 /* XXX device name should be improved */ 503 d = make_dev(&firewire_cdevsw, unit2minor(mn), 504 UID_ROOT, GID_OPERATOR, 0660, 505 "fw%x", mn); 506 #if __FreeBSD_version >= 500000 507 if (i == 0) 508 sc->dev = d; 509 else 510 dev_depends(sc->dev, d); 511 #else 512 sc->dev[i] = d; 513 #endif 514 } 515 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG), 516 UID_ROOT, GID_OPERATOR, 0660, 517 "fwmem%d", device_get_unit(dev)); 518 #if __FreeBSD_version >= 500000 519 dev_depends(sc->dev, d); 520 #else 521 sc->dev[i] = d; 522 #endif 523 sc->fc->timeouthandle = timeout((timeout_t *)sc->fc->timeout, (void *)sc->fc, hz * 10); 524 525 callout_init(&sc->fc->busprobe_callout 526 #if __FreeBSD_version >= 500000 527 , /* mpsafe? */ 0); 528 #else 529 ); 530 #endif 531 532 /* Locate our children */ 533 bus_generic_probe(dev); 534 535 /* launch attachement of the added children */ 536 bus_generic_attach(dev); 537 538 /* bus_reset */ 539 fc->ibr(fc); 540 541 return 0; 542 } 543 544 /* 545 * Attach it as child. 546 */ 547 static device_t 548 firewire_add_child(device_t dev, int order, const char *name, int unit) 549 { 550 device_t child; 551 struct firewire_softc *sc; 552 553 sc = (struct firewire_softc *)device_get_softc(dev); 554 child = device_add_child(dev, name, unit); 555 if (child) { 556 device_set_ivars(child, sc->fc); 557 device_probe_and_attach(child); 558 } 559 560 return child; 561 } 562 563 /* 564 * Dettach it. 565 */ 566 static int 567 firewire_detach( device_t dev ) 568 { 569 struct firewire_softc *sc; 570 571 sc = (struct firewire_softc *)device_get_softc(dev); 572 573 #if __FreeBSD_version >= 500000 574 destroy_dev(sc->dev); 575 #else 576 { 577 int j; 578 for (j = 0 ; j < sc->fc->nisodma + 1; j++) 579 destroy_dev(sc->dev[j]); 580 } 581 #endif 582 /* XXX xfree_free and untimeout on all xfers */ 583 untimeout((timeout_t *)sc->fc->timeout, sc->fc, sc->fc->timeouthandle); 584 free(sc->fc->topology_map, M_DEVBUF); 585 free(sc->fc->speed_map, M_DEVBUF); 586 bus_generic_detach(dev); 587 return(0); 588 } 589 #if 0 590 static int 591 firewire_shutdown( device_t dev ) 592 { 593 return 0; 594 } 595 #endif 596 597 /* 598 * Called after bus reset. 599 */ 600 void 601 fw_busreset(struct firewire_comm *fc) 602 { 603 int i; 604 struct fw_xfer *xfer; 605 606 switch(fc->status){ 607 case FWBUSMGRELECT: 608 untimeout((timeout_t *)fw_try_bmr, (void *)fc, fc->bmrhandle); 609 break; 610 default: 611 break; 612 } 613 fc->status = FWBUSRESET; 614 /* XXX: discard all queued packet */ 615 while((xfer = STAILQ_FIRST(&fc->atq->q)) != NULL){ 616 STAILQ_REMOVE_HEAD(&fc->atq->q, link); 617 xfer->resp = EAGAIN; 618 switch(xfer->act_type){ 619 case FWACT_XFER: 620 fw_xfer_done(xfer); 621 break; 622 default: 623 break; 624 } 625 fw_xfer_free( xfer); 626 } 627 while((xfer = STAILQ_FIRST(&fc->ats->q)) != NULL){ 628 STAILQ_REMOVE_HEAD(&fc->ats->q, link); 629 xfer->resp = EAGAIN; 630 switch(xfer->act_type){ 631 case FWACT_XFER: 632 fw_xfer_done(xfer); 633 default: 634 break; 635 } 636 fw_xfer_free( xfer); 637 } 638 for(i = 0; i < fc->nisodma; i++) 639 while((xfer = STAILQ_FIRST(&fc->it[i]->q)) != NULL){ 640 STAILQ_REMOVE_HEAD(&fc->it[i]->q, link); 641 xfer->resp = 0; 642 switch(xfer->act_type){ 643 case FWACT_XFER: 644 fw_xfer_done(xfer); 645 break; 646 default: 647 break; 648 } 649 fw_xfer_free( xfer); 650 } 651 652 CSRARC(fc, STATE_CLEAR) 653 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 654 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 655 CSRARC(fc, NODE_IDS) = 0x3f; 656 657 CSRARC(fc, TOPO_MAP + 8) = 0; 658 fc->irm = -1; 659 660 fc->max_node = -1; 661 662 for(i = 2; i < 0x100/4 - 2 ; i++){ 663 CSRARC(fc, SPED_MAP + i * 4) = 0; 664 } 665 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 666 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 667 CSRARC(fc, RESET_START) = 0; 668 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 669 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 670 CSRARC(fc, CYCLE_TIME) = 0x0; 671 CSRARC(fc, BUS_TIME) = 0x0; 672 CSRARC(fc, BUS_MGR_ID) = 0x3f; 673 CSRARC(fc, BANDWIDTH_AV) = 4915; 674 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 675 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 676 CSRARC(fc, IP_CHANNELS) = (1 << 31); 677 678 CSRARC(fc, CONF_ROM) = 0x04 << 24; 679 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 680 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 681 1 << 28 | 0xff << 16 | 0x09 << 8; 682 CSRARC(fc, CONF_ROM + 0xc) = 0; 683 684 /* DV depend CSRs see blue book */ 685 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 686 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 687 688 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 689 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 690 } 691 692 /* Call once after reboot */ 693 void fw_init(struct firewire_comm *fc) 694 { 695 int i; 696 struct csrdir *csrd; 697 #ifdef FW_VMACCESS 698 struct fw_xfer *xfer; 699 struct fw_bind *fwb; 700 #endif 701 702 fc->max_asyretry = FW_MAXASYRTY; 703 704 fc->arq->queued = 0; 705 fc->ars->queued = 0; 706 fc->atq->queued = 0; 707 fc->ats->queued = 0; 708 709 fc->arq->psize = FWPMAX_S400; 710 fc->ars->psize = FWPMAX_S400; 711 fc->atq->psize = FWPMAX_S400; 712 fc->ats->psize = FWPMAX_S400; 713 714 715 fc->arq->buf = NULL; 716 fc->ars->buf = NULL; 717 fc->atq->buf = NULL; 718 fc->ats->buf = NULL; 719 720 fc->arq->flag = FWXFERQ_PACKET; 721 fc->ars->flag = FWXFERQ_PACKET; 722 fc->atq->flag = FWXFERQ_PACKET; 723 fc->ats->flag = FWXFERQ_PACKET; 724 725 STAILQ_INIT(&fc->atq->q); 726 STAILQ_INIT(&fc->ats->q); 727 728 for( i = 0 ; i < fc->nisodma ; i ++ ){ 729 fc->it[i]->queued = 0; 730 fc->ir[i]->queued = 0; 731 732 fc->it[i]->start = NULL; 733 fc->ir[i]->start = NULL; 734 735 fc->it[i]->buf = NULL; 736 fc->ir[i]->buf = NULL; 737 738 fc->it[i]->flag = FWXFERQ_STREAM; 739 fc->ir[i]->flag = FWXFERQ_STREAM; 740 741 STAILQ_INIT(&fc->it[i]->q); 742 STAILQ_INIT(&fc->ir[i]->q); 743 744 STAILQ_INIT(&fc->it[i]->binds); 745 STAILQ_INIT(&fc->ir[i]->binds); 746 } 747 748 fc->arq->maxq = FWMAXQUEUE; 749 fc->ars->maxq = FWMAXQUEUE; 750 fc->atq->maxq = FWMAXQUEUE; 751 fc->ats->maxq = FWMAXQUEUE; 752 753 for( i = 0 ; i < fc->nisodma ; i++){ 754 fc->ir[i]->maxq = FWMAXQUEUE; 755 fc->it[i]->maxq = FWMAXQUEUE; 756 } 757 /* Initialize csr registers */ 758 fc->topology_map = (struct fw_topology_map *)malloc( 759 sizeof(struct fw_topology_map), 760 M_DEVBUF, M_DONTWAIT | M_ZERO); 761 fc->speed_map = (struct fw_speed_map *)malloc( 762 sizeof(struct fw_speed_map), 763 M_DEVBUF, M_DONTWAIT | M_ZERO); 764 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 765 CSRARC(fc, TOPO_MAP + 4) = 1; 766 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 767 CSRARC(fc, SPED_MAP + 4) = 1; 768 769 TAILQ_INIT(&fc->devices); 770 STAILQ_INIT(&fc->pending); 771 772 /* Initialize csr ROM work space */ 773 SLIST_INIT(&fc->ongocsr); 774 SLIST_INIT(&fc->csrfree); 775 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 776 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_DEVBUF,M_DONTWAIT); 777 if(csrd == NULL) break; 778 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 779 } 780 781 /* Initialize Async handlers */ 782 STAILQ_INIT(&fc->binds); 783 for( i = 0 ; i < 0x40 ; i++){ 784 STAILQ_INIT(&fc->tlabels[i]); 785 } 786 787 /* DV depend CSRs see blue book */ 788 #if 0 789 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 790 CSRARC(fc, oPCR) = 0x8000007a; 791 for(i = 4 ; i < 0x7c/4 ; i+=4){ 792 CSRARC(fc, i + oPCR) = 0x8000007a; 793 } 794 795 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 796 CSRARC(fc, iPCR) = 0x803f0000; 797 for(i = 4 ; i < 0x7c/4 ; i+=4){ 798 CSRARC(fc, i + iPCR) = 0x0; 799 } 800 #endif 801 802 803 #ifdef FW_VMACCESS 804 xfer = fw_xfer_alloc(); 805 if(xfer == NULL) return; 806 807 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_DEVBUF, M_DONTWAIT); 808 if(fwb == NULL){ 809 fw_xfer_free(xfer); 810 } 811 xfer->act.hand = fw_vmaccess; 812 xfer->act_type = FWACT_XFER; 813 xfer->fc = fc; 814 xfer->sc = NULL; 815 816 fwb->start_hi = 0x2; 817 fwb->start_lo = 0; 818 fwb->addrlen = 0xffffffff; 819 fwb->xfer = xfer; 820 fw_bindadd(fc, fwb); 821 #endif 822 } 823 824 /* 825 * To lookup binded process from IEEE1394 address. 826 */ 827 struct fw_bind * 828 fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 829 { 830 struct fw_bind *tfw; 831 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 832 tfw = STAILQ_NEXT(tfw, fclist)){ 833 if(tfw->xfer->act_type != FWACT_NULL && 834 tfw->start_hi == dest_hi && 835 tfw->start_lo <= dest_lo && 836 (tfw->start_lo + tfw->addrlen) > dest_lo){ 837 return(tfw); 838 } 839 } 840 return(NULL); 841 } 842 843 /* 844 * To bind IEEE1394 address block to process. 845 */ 846 int 847 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 848 { 849 struct fw_bind *tfw, *tfw2 = NULL; 850 int err = 0; 851 tfw = STAILQ_FIRST(&fc->binds); 852 if(tfw == NULL){ 853 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 854 goto out; 855 } 856 if((tfw->start_hi > fwb->start_hi) || 857 (tfw->start_hi == fwb->start_hi && 858 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 859 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 860 goto out; 861 } 862 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 863 if((tfw->start_hi < fwb->start_hi) || 864 (tfw->start_hi == fwb->start_hi && 865 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 866 tfw2 = STAILQ_NEXT(tfw, fclist); 867 if(tfw2 == NULL) 868 break; 869 if((tfw2->start_hi > fwb->start_hi) || 870 (tfw2->start_hi == fwb->start_hi && 871 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 872 break; 873 }else{ 874 err = EBUSY; 875 goto out; 876 } 877 } 878 } 879 if(tfw != NULL){ 880 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 881 }else{ 882 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 883 } 884 out: 885 if(!err && fwb->xfer->act_type == FWACT_CH){ 886 STAILQ_INSERT_HEAD(&fc->ir[fwb->xfer->sub]->binds, fwb, chlist); 887 } 888 return err; 889 } 890 891 /* 892 * To free IEEE1394 address block. 893 */ 894 int 895 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 896 { 897 int s; 898 899 s = splfw(); 900 /* shall we check the existance? */ 901 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 902 splx(s); 903 if (fwb->xfer) 904 fw_xfer_free(fwb->xfer); 905 906 return 0; 907 } 908 909 /* 910 * To free transaction label. 911 */ 912 static void 913 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 914 { 915 struct tlabel *tl; 916 int s = splfw(); 917 918 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 919 tl = STAILQ_NEXT(tl, link)){ 920 if(tl->xfer == xfer){ 921 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 922 free(tl, M_DEVBUF); 923 splx(s); 924 return; 925 } 926 } 927 splx(s); 928 return; 929 } 930 931 /* 932 * To obtain XFER structure by transaction label. 933 */ 934 static struct fw_xfer * 935 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 936 { 937 struct fw_xfer *xfer; 938 struct tlabel *tl; 939 int s = splfw(); 940 941 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 942 tl = STAILQ_NEXT(tl, link)){ 943 if(tl->xfer->dst == node){ 944 xfer = tl->xfer; 945 splx(s); 946 return(xfer); 947 } 948 } 949 splx(s); 950 return(NULL); 951 } 952 953 /* 954 * To allocate IEEE1394 XFER structure. 955 */ 956 struct fw_xfer * 957 fw_xfer_alloc() 958 { 959 struct fw_xfer *xfer; 960 961 xfer = malloc(sizeof(struct fw_xfer), M_DEVBUF, M_DONTWAIT | M_ZERO); 962 if (xfer == NULL) 963 return xfer; 964 965 xfer->time = time_second; 966 xfer->sub = -1; 967 968 return xfer; 969 } 970 971 /* 972 * IEEE1394 XFER post process. 973 */ 974 void 975 fw_xfer_done(struct fw_xfer *xfer) 976 { 977 if (xfer->act.hand == NULL) 978 return; 979 980 #if XFER_TIMEOUT 981 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 982 #endif 983 984 if (xfer->fc->status != FWBUSRESET) 985 xfer->act.hand(xfer); 986 else { 987 printf("fw_xfer_done: pending\n"); 988 if (xfer->fc != NULL) 989 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 990 else 991 panic("fw_xfer_done: why xfer->fc is NULL?"); 992 } 993 } 994 995 /* 996 * To free IEEE1394 XFER structure. 997 */ 998 void 999 fw_xfer_free( struct fw_xfer* xfer) 1000 { 1001 int s; 1002 if(xfer == NULL ) return; 1003 if(xfer->state == FWXF_INQ){ 1004 printf("fw_xfer_free FWXF_INQ\n"); 1005 s = splfw(); 1006 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1007 xfer->q->queued --; 1008 splx(s); 1009 } 1010 if(xfer->fc != NULL){ 1011 if(xfer->state == FWXF_START){ 1012 #if 0 /* this could happen if we call fwohci_arcv() before fwohci_txd() */ 1013 printf("fw_xfer_free FWXF_START\n"); 1014 #endif 1015 s = splfw(); 1016 xfer->q->drain(xfer->fc, xfer); 1017 splx(s); 1018 } 1019 } 1020 if(xfer->send.buf != NULL){ 1021 free(xfer->send.buf, M_DEVBUF); 1022 } 1023 if(xfer->recv.buf != NULL){ 1024 free(xfer->recv.buf, M_DEVBUF); 1025 } 1026 if(xfer->fc != NULL){ 1027 fw_tl_free(xfer->fc, xfer); 1028 } 1029 free(xfer, M_DEVBUF); 1030 } 1031 1032 /* 1033 * Callback for PHY configuration. 1034 */ 1035 static void 1036 fw_phy_config_callback(struct fw_xfer *xfer) 1037 { 1038 #if 0 1039 printf("phy_config done state=%d resp=%d\n", 1040 xfer->state, xfer->resp); 1041 #endif 1042 fw_xfer_free(xfer); 1043 /* XXX need bus reset ?? */ 1044 /* sc->fc->ibr(xfer->fc); LOOP */ 1045 } 1046 1047 /* 1048 * To configure PHY. 1049 */ 1050 static void 1051 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1052 { 1053 struct fw_xfer *xfer; 1054 struct fw_pkt *fp; 1055 1056 fc->status = FWBUSPHYCONF; 1057 1058 DELAY(100000); 1059 xfer = fw_xfer_alloc(); 1060 xfer->send.len = 12; 1061 xfer->send.off = 0; 1062 xfer->fc = fc; 1063 xfer->retry_req = fw_asybusy; 1064 xfer->act.hand = fw_phy_config_callback; 1065 1066 xfer->send.buf = malloc(sizeof(u_int32_t), 1067 M_DEVBUF, M_DONTWAIT | M_ZERO); 1068 fp = (struct fw_pkt *)xfer->send.buf; 1069 fp->mode.ld[1] = 0; 1070 if (root_node >= 0) 1071 fp->mode.ld[1] |= htonl((root_node & 0x3f) << 24 | 1 << 23); 1072 if (gap_count >= 0) 1073 fp->mode.ld[1] |= htonl(1 << 22 | (gap_count & 0x3f) << 16); 1074 fp->mode.ld[2] = ~fp->mode.ld[1]; 1075 /* XXX Dangerous, how to pass PHY packet to device driver */ 1076 fp->mode.common.tcode |= FWTCODE_PHY; 1077 1078 if (firewire_debug) 1079 printf("send phy_config root_node=%d gap_count=%d\n", 1080 root_node, gap_count); 1081 fw_asyreq(fc, -1, xfer); 1082 } 1083 1084 #if 0 1085 /* 1086 * Dump self ID. 1087 */ 1088 static void 1089 fw_print_sid(u_int32_t sid) 1090 { 1091 union fw_self_id *s; 1092 s = (union fw_self_id *) &sid; 1093 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1094 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1095 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1096 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1097 s->p0.power_class, s->p0.port0, s->p0.port1, 1098 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1099 } 1100 #endif 1101 1102 /* 1103 * To receive self ID. 1104 */ 1105 void fw_sidrcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int off) 1106 { 1107 u_int32_t *p, *sid = (u_int32_t *)(buf + off); 1108 union fw_self_id *self_id; 1109 u_int i, j, node, c_port = 0, i_branch = 0; 1110 1111 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1112 fc->status = FWBUSINIT; 1113 fc->max_node = fc->nodeid & 0x3f; 1114 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1115 fc->status = FWBUSCYMELECT; 1116 fc->topology_map->crc_len = 2; 1117 fc->topology_map->generation ++; 1118 fc->topology_map->self_id_count = 0; 1119 fc->topology_map->node_count = 0; 1120 fc->speed_map->generation ++; 1121 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1122 self_id = &fc->topology_map->self_id[0]; 1123 for(i = 0; i < fc->sid_cnt; i ++){ 1124 if (sid[1] != ~sid[0]) { 1125 printf("fw_sidrcv: invalid self-id packet\n"); 1126 sid += 2; 1127 continue; 1128 } 1129 *self_id = *((union fw_self_id *)sid); 1130 fc->topology_map->crc_len++; 1131 if(self_id->p0.sequel == 0){ 1132 fc->topology_map->node_count ++; 1133 c_port = 0; 1134 #if 0 1135 fw_print_sid(sid[0]); 1136 #endif 1137 node = self_id->p0.phy_id; 1138 if(fc->max_node < node){ 1139 fc->max_node = self_id->p0.phy_id; 1140 } 1141 /* XXX I'm not sure this is the right speed_map */ 1142 fc->speed_map->speed[node][node] 1143 = self_id->p0.phy_speed; 1144 for (j = 0; j < node; j ++) { 1145 fc->speed_map->speed[j][node] 1146 = fc->speed_map->speed[node][j] 1147 = min(fc->speed_map->speed[j][j], 1148 self_id->p0.phy_speed); 1149 } 1150 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1151 (self_id->p0.link_active && self_id->p0.contender)) { 1152 fc->irm = self_id->p0.phy_id; 1153 } 1154 if(self_id->p0.port0 >= 0x2){ 1155 c_port++; 1156 } 1157 if(self_id->p0.port1 >= 0x2){ 1158 c_port++; 1159 } 1160 if(self_id->p0.port2 >= 0x2){ 1161 c_port++; 1162 } 1163 } 1164 if(c_port > 2){ 1165 i_branch += (c_port - 2); 1166 } 1167 sid += 2; 1168 self_id++; 1169 fc->topology_map->self_id_count ++; 1170 } 1171 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1172 /* CRC */ 1173 fc->topology_map->crc = fw_crc16( 1174 (u_int32_t *)&fc->topology_map->generation, 1175 fc->topology_map->crc_len * 4); 1176 fc->speed_map->crc = fw_crc16( 1177 (u_int32_t *)&fc->speed_map->generation, 1178 fc->speed_map->crc_len * 4); 1179 /* byteswap and copy to CSR */ 1180 p = (u_int32_t *)fc->topology_map; 1181 for (i = 0; i <= fc->topology_map->crc_len; i++) 1182 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1183 p = (u_int32_t *)fc->speed_map; 1184 CSRARC(fc, SPED_MAP) = htonl(*p++); 1185 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1186 /* don't byte-swap u_int8_t array */ 1187 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1188 1189 fc->max_hop = fc->max_node - i_branch; 1190 #if 1 1191 printf(", maxhop <= %d", fc->max_hop); 1192 #endif 1193 1194 if(fc->irm == -1 ){ 1195 printf(", Not found IRM capable node"); 1196 }else{ 1197 printf(", cable IRM = %d", fc->irm); 1198 if (fc->irm == fc->nodeid) 1199 printf(" (me)\n"); 1200 else 1201 printf("\n"); 1202 } 1203 1204 if((fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f) ){ 1205 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ 1206 fc->status = FWBUSMGRDONE; 1207 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1208 }else{ 1209 fc->status = FWBUSMGRELECT; 1210 fc->bmrhandle = timeout((timeout_t *)fw_try_bmr,(void *)fc, hz / 8); 1211 } 1212 }else{ 1213 fc->status = FWBUSMGRDONE; 1214 device_printf(fc->bdev, "BMR = %x\n", 1215 CSRARC(fc, BUS_MGR_ID)); 1216 } 1217 free(buf, M_DEVBUF); 1218 #if 1 1219 /* XXX optimize gap_count, if I am BMGR */ 1220 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ 1221 fw_phy_config(fc, -1, gap_cnt[fc->max_hop]); 1222 } 1223 #endif 1224 #if 1 1225 callout_reset(&fc->busprobe_callout, hz/4, 1226 (void *)fw_bus_probe, (void *)fc); 1227 #else 1228 fw_bus_probe(fc); 1229 #endif 1230 } 1231 1232 /* 1233 * To probe devices on the IEEE1394 bus. 1234 */ 1235 static void 1236 fw_bus_probe(struct firewire_comm *fc) 1237 { 1238 int s; 1239 struct fw_device *fwdev, *next; 1240 1241 s = splfw(); 1242 fc->status = FWBUSEXPLORE; 1243 fc->retry_count = 0; 1244 1245 /* 1246 * Invalidate all devices, just after bus reset. Devices 1247 * to be removed has not been seen longer time. 1248 */ 1249 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1250 next = TAILQ_NEXT(fwdev, link); 1251 if(fwdev->status != FWDEVINVAL){ 1252 fwdev->status = FWDEVINVAL; 1253 fwdev->rcnt = 0; 1254 }else if(fwdev->rcnt < FW_MAXDEVRCNT){ 1255 fwdev->rcnt ++; 1256 }else{ 1257 TAILQ_REMOVE(&fc->devices, fwdev, link); 1258 free(fwdev, M_DEVBUF); 1259 } 1260 } 1261 fc->ongonode = 0; 1262 fc->ongoaddr = CSRROMOFF; 1263 fc->ongodev = NULL; 1264 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1265 fw_bus_explore(fc); 1266 splx(s); 1267 } 1268 1269 /* 1270 * To collect device informations on the IEEE1394 bus. 1271 */ 1272 static void 1273 fw_bus_explore(struct firewire_comm *fc ) 1274 { 1275 int err = 0; 1276 struct fw_device *fwdev, *tfwdev; 1277 u_int32_t addr; 1278 struct fw_xfer *xfer; 1279 struct fw_pkt *fp; 1280 1281 if(fc->status != FWBUSEXPLORE) 1282 return; 1283 1284 loop: 1285 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1286 1287 if(fc->ongonode > fc->max_node) goto done; 1288 if(fc->ongonode >= 0x3f) goto done; 1289 1290 /* check link */ 1291 /* XXX we need to check phy_id first */ 1292 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1293 printf("fw_bus_explore: node %d link down\n", fc->ongonode); 1294 fc->ongonode++; 1295 goto loop; 1296 } 1297 1298 if(fc->ongoaddr <= CSRROMOFF && 1299 fc->ongoeui.hi == 0xffffffff && 1300 fc->ongoeui.lo == 0xffffffff ){ 1301 fc->ongoaddr = CSRROMOFF; 1302 addr = 0xf0000000 | fc->ongoaddr; 1303 }else if(fc->ongoeui.hi == 0xffffffff ){ 1304 fc->ongoaddr = CSRROMOFF + 0xc; 1305 addr = 0xf0000000 | fc->ongoaddr; 1306 }else if(fc->ongoeui.lo == 0xffffffff ){ 1307 fc->ongoaddr = CSRROMOFF + 0x10; 1308 addr = 0xf0000000 | fc->ongoaddr; 1309 }else if(fc->ongodev == NULL){ 1310 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 1311 fwdev = TAILQ_NEXT(fwdev, link)){ 1312 if(fwdev->eui.hi == fc->ongoeui.hi && fwdev->eui.lo == fc->ongoeui.lo){ 1313 break; 1314 } 1315 } 1316 if(fwdev != NULL){ 1317 fwdev->dst = fc->ongonode; 1318 fwdev->status = FWDEVATTACHED; 1319 fc->ongonode++; 1320 fc->ongoaddr = CSRROMOFF; 1321 fc->ongodev = NULL; 1322 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1323 goto loop; 1324 } 1325 fwdev = malloc(sizeof(struct fw_device), M_DEVBUF, M_DONTWAIT); 1326 if(fwdev == NULL) 1327 return; 1328 fwdev->fc = fc; 1329 fwdev->rommax = 0; 1330 fwdev->dst = fc->ongonode; 1331 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1332 fwdev->status = FWDEVINIT; 1333 #if 0 1334 fwdev->speed = CSRARC(fc, SPED_MAP + 8 + fc->ongonode / 4) 1335 >> ((3 - (fc->ongonode % 4)) * 8); 1336 #else 1337 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1338 #endif 1339 1340 tfwdev = TAILQ_FIRST(&fc->devices); 1341 while( tfwdev != NULL && 1342 (tfwdev->eui.hi > fwdev->eui.hi) && 1343 ((tfwdev->eui.hi == fwdev->eui.hi) && 1344 tfwdev->eui.lo > fwdev->eui.lo)){ 1345 tfwdev = TAILQ_NEXT( tfwdev, link); 1346 } 1347 if(tfwdev == NULL){ 1348 TAILQ_INSERT_TAIL(&fc->devices, fwdev, link); 1349 }else{ 1350 TAILQ_INSERT_BEFORE(tfwdev, fwdev, link); 1351 } 1352 1353 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1354 linkspeed[fwdev->speed], 1355 fc->ongoeui.hi, fc->ongoeui.lo); 1356 1357 fc->ongodev = fwdev; 1358 fc->ongoaddr = CSRROMOFF; 1359 addr = 0xf0000000 | fc->ongoaddr; 1360 }else{ 1361 addr = 0xf0000000 | fc->ongoaddr; 1362 } 1363 #if 0 1364 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1365 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1366 fw_bus_explore_callback); 1367 if(xfer == NULL) goto done; 1368 #else 1369 xfer = fw_xfer_alloc(); 1370 if(xfer == NULL){ 1371 goto done; 1372 } 1373 xfer->send.len = 16; 1374 xfer->spd = 0; 1375 xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT); 1376 if(xfer->send.buf == NULL){ 1377 fw_xfer_free( xfer); 1378 return; 1379 } 1380 1381 xfer->send.off = 0; 1382 fp = (struct fw_pkt *)xfer->send.buf; 1383 fp->mode.rreqq.dest_hi = htons(0xffff); 1384 fp->mode.rreqq.tlrt = 0; 1385 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1386 fp->mode.rreqq.pri = 0; 1387 fp->mode.rreqq.src = 0; 1388 xfer->dst = FWLOCALBUS | fc->ongonode; 1389 fp->mode.rreqq.dst = htons(xfer->dst); 1390 fp->mode.rreqq.dest_lo = htonl(addr); 1391 xfer->act.hand = fw_bus_explore_callback; 1392 1393 err = fw_asyreq(fc, -1, xfer); 1394 if(err){ 1395 fw_xfer_free( xfer); 1396 return; 1397 } 1398 #endif 1399 return; 1400 done: 1401 /* fw_attach_devs */ 1402 fc->status = FWBUSEXPDONE; 1403 if (firewire_debug) 1404 printf("bus_explore done\n"); 1405 fw_attach_dev(fc); 1406 return; 1407 1408 } 1409 1410 /* Portable Async. request read quad */ 1411 struct fw_xfer * 1412 asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1413 u_int32_t addr_hi, u_int32_t addr_lo, 1414 void (*hand) __P((struct fw_xfer*))) 1415 { 1416 struct fw_xfer *xfer; 1417 struct fw_pkt *fp; 1418 int err; 1419 1420 xfer = fw_xfer_alloc(); 1421 if(xfer == NULL){ 1422 return NULL; 1423 } 1424 xfer->send.len = 16; 1425 xfer->spd = spd; /* XXX:min(spd, fc->spd) */ 1426 xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT); 1427 if(xfer->send.buf == NULL){ 1428 fw_xfer_free( xfer); 1429 return NULL; 1430 } 1431 1432 xfer->send.off = 0; 1433 fp = (struct fw_pkt *)xfer->send.buf; 1434 fp->mode.rreqq.dest_hi = htons(addr_hi & 0xffff); 1435 if(tl & FWP_TL_VALID){ 1436 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1437 }else{ 1438 fp->mode.rreqq.tlrt = 0; 1439 } 1440 fp->mode.rreqq.tlrt |= rt & 0x3; 1441 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1442 fp->mode.rreqq.pri = 0; 1443 fp->mode.rreqq.src = 0; 1444 xfer->dst = addr_hi >> 16; 1445 fp->mode.rreqq.dst = htons(xfer->dst); 1446 fp->mode.rreqq.dest_lo = htonl(addr_lo); 1447 xfer->act.hand = hand; 1448 1449 err = fw_asyreq(fc, -1, xfer); 1450 if(err){ 1451 fw_xfer_free( xfer); 1452 return NULL; 1453 } 1454 return xfer; 1455 } 1456 1457 /* 1458 * Callback for the IEEE1394 bus information collection. 1459 */ 1460 static void 1461 fw_bus_explore_callback(struct fw_xfer *xfer) 1462 { 1463 struct firewire_comm *fc; 1464 struct fw_pkt *sfp,*rfp; 1465 struct csrhdr *chdr; 1466 struct csrdir *csrd; 1467 struct csrreg *csrreg; 1468 u_int32_t offset; 1469 1470 1471 if(xfer == NULL) return; 1472 fc = xfer->fc; 1473 if(xfer->resp != 0){ 1474 printf("resp != 0: node=%d addr=0x%x\n", 1475 fc->ongonode, fc->ongoaddr); 1476 fc->retry_count++; 1477 goto nextnode; 1478 } 1479 1480 if(xfer->send.buf == NULL){ 1481 printf("send.buf == NULL: node=%d addr=0x%x\n", 1482 fc->ongonode, fc->ongoaddr); 1483 printf("send.buf == NULL\n"); 1484 fc->retry_count++; 1485 goto nextnode; 1486 } 1487 sfp = (struct fw_pkt *)xfer->send.buf; 1488 1489 if(xfer->recv.buf == NULL){ 1490 printf("recv.buf == NULL: node=%d addr=0x%x\n", 1491 fc->ongonode, fc->ongoaddr); 1492 fc->retry_count++; 1493 goto nextnode; 1494 } 1495 rfp = (struct fw_pkt *)xfer->recv.buf; 1496 #if 0 1497 { 1498 u_int32_t *qld; 1499 int i; 1500 qld = (u_int32_t *)xfer->recv.buf; 1501 printf("len:%d\n", xfer->recv.len); 1502 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1503 printf("0x%08x ", ntohl(rfp->mode.ld[i/4])); 1504 if((i % 16) == 15) printf("\n"); 1505 } 1506 if((i % 16) != 15) printf("\n"); 1507 } 1508 #endif 1509 if(fc->ongodev == NULL){ 1510 if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 | CSRROMOFF))){ 1511 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1512 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1513 /* If CSR is minimul confinguration, more investgation is not needed. */ 1514 if(chdr->info_len == 1){ 1515 goto nextnode; 1516 }else{ 1517 fc->ongoaddr = CSRROMOFF + 0xc; 1518 } 1519 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0xc)))){ 1520 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1521 fc->ongoaddr = CSRROMOFF + 0x10; 1522 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0x10)))){ 1523 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1524 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) 1525 goto nextnode; 1526 fc->ongoaddr = CSRROMOFF; 1527 } 1528 }else{ 1529 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1530 if(fc->ongoaddr > fc->ongodev->rommax){ 1531 fc->ongodev->rommax = fc->ongoaddr; 1532 } 1533 csrd = SLIST_FIRST(&fc->ongocsr); 1534 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1535 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1536 offset = CSRROMOFF; 1537 }else{ 1538 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1539 offset = csrd->off; 1540 } 1541 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1542 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1543 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1544 csrd = SLIST_FIRST(&fc->csrfree); 1545 if(csrd == NULL){ 1546 goto nextnode; 1547 }else{ 1548 csrd->ongoaddr = fc->ongoaddr; 1549 fc->ongoaddr += csrreg->val * 4; 1550 csrd->off = fc->ongoaddr; 1551 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1552 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1553 goto nextaddr; 1554 } 1555 } 1556 } 1557 fc->ongoaddr += 4; 1558 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1559 (fc->ongodev->rommax < 0x414)){ 1560 if(fc->ongodev->rommax <= 0x414){ 1561 csrd = SLIST_FIRST(&fc->csrfree); 1562 if(csrd == NULL) goto nextnode; 1563 csrd->off = fc->ongoaddr; 1564 csrd->ongoaddr = fc->ongoaddr; 1565 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1566 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1567 } 1568 goto nextaddr; 1569 } 1570 1571 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1572 if(csrd == NULL){ 1573 goto nextnode; 1574 }; 1575 fc->ongoaddr = csrd->ongoaddr + 4; 1576 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1577 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1578 csrd = SLIST_FIRST(&fc->ongocsr); 1579 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1580 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1581 offset = CSRROMOFF; 1582 }else{ 1583 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1584 offset = csrd->off; 1585 } 1586 } 1587 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1588 goto nextnode; 1589 } 1590 } 1591 nextaddr: 1592 fw_xfer_free( xfer); 1593 fw_bus_explore(fc); 1594 return; 1595 nextnode: 1596 fw_xfer_free( xfer); 1597 fc->ongonode++; 1598 /* housekeeping work space */ 1599 fc->ongoaddr = CSRROMOFF; 1600 fc->ongodev = NULL; 1601 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1602 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1603 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1604 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1605 } 1606 fw_bus_explore(fc); 1607 return; 1608 } 1609 1610 /* 1611 * To obtain CSR register values. 1612 */ 1613 u_int32_t 1614 getcsrdata(struct fw_device *fwdev, u_int8_t key) 1615 { 1616 int i; 1617 struct csrhdr *chdr; 1618 struct csrreg *creg; 1619 chdr = (struct csrhdr *)&fwdev->csrrom[0]; 1620 for( i = chdr->info_len + 4; i <= fwdev->rommax - CSRROMOFF; i+=4){ 1621 creg = (struct csrreg *)&fwdev->csrrom[i/4]; 1622 if(creg->key == key){ 1623 return (u_int32_t)creg->val; 1624 } 1625 } 1626 return 0; 1627 } 1628 1629 /* 1630 * To attach sub-devices layer onto IEEE1394 bus. 1631 */ 1632 static void 1633 fw_attach_dev(struct firewire_comm *fc) 1634 { 1635 struct fw_device *fwdev; 1636 struct fw_xfer *xfer; 1637 int i, err; 1638 device_t *devlistp; 1639 int devcnt; 1640 struct firewire_dev_comm *fdc; 1641 u_int32_t spec, ver; 1642 1643 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 1644 fwdev = TAILQ_NEXT(fwdev, link)){ 1645 if(fwdev->status == FWDEVINIT){ 1646 spec = getcsrdata(fwdev, CSRKEY_SPEC); 1647 if(spec == 0) 1648 continue; 1649 ver = getcsrdata(fwdev, CSRKEY_VER); 1650 if(ver == 0) 1651 continue; 1652 fwdev->maxrec = (fwdev->csrrom[2] >> 12) & 0xf; 1653 1654 device_printf(fc->bdev, "Device "); 1655 switch(spec){ 1656 case CSRVAL_ANSIT10: 1657 switch(ver){ 1658 case CSRVAL_T10SBP2: 1659 printf("SBP-II"); 1660 break; 1661 default: 1662 break; 1663 } 1664 break; 1665 case CSRVAL_1394TA: 1666 switch(ver){ 1667 case CSR_PROTAVC: 1668 printf("AV/C"); 1669 break; 1670 case CSR_PROTCAL: 1671 printf("CAL"); 1672 break; 1673 case CSR_PROTEHS: 1674 printf("EHS"); 1675 break; 1676 case CSR_PROTHAVI: 1677 printf("HAVi"); 1678 break; 1679 case CSR_PROTCAM104: 1680 printf("1394 Cam 1.04"); 1681 break; 1682 case CSR_PROTCAM120: 1683 printf("1394 Cam 1.20"); 1684 break; 1685 case CSR_PROTCAM130: 1686 printf("1394 Cam 1.30"); 1687 break; 1688 case CSR_PROTDPP: 1689 printf("1394 Direct print"); 1690 break; 1691 case CSR_PROTIICP: 1692 printf("Industrial & Instrument"); 1693 break; 1694 default: 1695 printf("unknown 1394TA"); 1696 break; 1697 } 1698 break; 1699 default: 1700 printf("unknown spec"); 1701 break; 1702 } 1703 fwdev->status = FWDEVATTACHED; 1704 printf("\n"); 1705 } 1706 } 1707 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1708 if( err != 0 ) 1709 return; 1710 for( i = 0 ; i < devcnt ; i++){ 1711 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1712 fdc = device_get_softc(devlistp[i]); 1713 if (fdc->post_explore != NULL) 1714 fdc->post_explore(fdc); 1715 } 1716 } 1717 free(devlistp, M_TEMP); 1718 1719 /* call pending handlers */ 1720 i = 0; 1721 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1722 STAILQ_REMOVE_HEAD(&fc->pending, link); 1723 i++; 1724 if (xfer->act.hand) 1725 xfer->act.hand(xfer); 1726 } 1727 if (i > 0) 1728 printf("fw_attach_dev: %d pending handlers called\n", i); 1729 if (fc->retry_count > 0) { 1730 printf("retry_count = %d\n", fc->retry_count); 1731 fc->retry_probe_handle = timeout((timeout_t *)fc->ibr, 1732 (void *)fc, hz*2); 1733 } 1734 return; 1735 } 1736 1737 /* 1738 * To allocate uniq transaction label. 1739 */ 1740 static int 1741 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1742 { 1743 u_int i; 1744 struct tlabel *tl, *tmptl; 1745 int s; 1746 static u_int32_t label = 0; 1747 1748 s = splfw(); 1749 for( i = 0 ; i < 0x40 ; i ++){ 1750 label = (label + 1) & 0x3f; 1751 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1752 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1753 if(tmptl->xfer->dst == xfer->dst) break; 1754 } 1755 if(tmptl == NULL) { 1756 tl = malloc(sizeof(struct tlabel),M_DEVBUF,M_DONTWAIT); 1757 if (tl == NULL) { 1758 splx(s); 1759 return (-1); 1760 } 1761 tl->xfer = xfer; 1762 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1763 splx(s); 1764 return(label); 1765 } 1766 } 1767 splx(s); 1768 1769 printf("fw_get_tlabel: no free tlabel\n"); 1770 return(-1); 1771 } 1772 1773 /* 1774 * Generic packet receving process. 1775 */ 1776 void 1777 fw_rcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int sub, u_int off, u_int spd) 1778 { 1779 struct fw_pkt *fp, *resfp; 1780 struct fw_xfer *xfer; 1781 struct fw_bind *bind; 1782 struct firewire_softc *sc; 1783 int s; 1784 #if 0 1785 { 1786 u_int32_t *qld; 1787 int i; 1788 qld = (u_int32_t *)buf; 1789 printf("spd %d len:%d\n", spd, len); 1790 for( i = 0 ; i <= len && i < 32; i+= 4){ 1791 printf("0x%08x ", ntohl(qld[i/4])); 1792 if((i % 16) == 15) printf("\n"); 1793 } 1794 if((i % 16) != 15) printf("\n"); 1795 } 1796 #endif 1797 fp = (struct fw_pkt *)(buf + off); 1798 switch(fp->mode.common.tcode){ 1799 case FWTCODE_WRES: 1800 case FWTCODE_RRESQ: 1801 case FWTCODE_RRESB: 1802 case FWTCODE_LRES: 1803 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1804 fp->mode.hdr.tlrt >> 2); 1805 if(xfer == NULL) { 1806 printf("fw_rcv: unknown response " 1807 "tcode=%d src=0x%x tl=%x rt=%d data=0x%x\n", 1808 fp->mode.common.tcode, 1809 ntohs(fp->mode.hdr.src), 1810 fp->mode.hdr.tlrt >> 2, 1811 fp->mode.hdr.tlrt & 3, 1812 fp->mode.rresq.data); 1813 #if 1 1814 printf("try ad-hoc work around!!\n"); 1815 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1816 (fp->mode.hdr.tlrt >> 2)^3); 1817 if (xfer == NULL) { 1818 printf("no use...\n"); 1819 goto err; 1820 } 1821 #else 1822 goto err; 1823 #endif 1824 } 1825 switch(xfer->act_type){ 1826 case FWACT_XFER: 1827 if((xfer->sub >= 0) && 1828 ((fc->ir[xfer->sub]->flag & FWXFERQ_MODEMASK ) == 0)){ 1829 xfer->resp = EINVAL; 1830 fw_xfer_done(xfer); 1831 goto err; 1832 } 1833 xfer->recv.len = len; 1834 xfer->recv.off = off; 1835 xfer->recv.buf = buf; 1836 xfer->resp = 0; 1837 fw_xfer_done(xfer); 1838 return; 1839 break; 1840 case FWACT_CH: 1841 default: 1842 goto err; 1843 break; 1844 } 1845 break; 1846 case FWTCODE_WREQQ: 1847 case FWTCODE_WREQB: 1848 case FWTCODE_RREQQ: 1849 case FWTCODE_RREQB: 1850 case FWTCODE_LREQ: 1851 bind = fw_bindlookup(fc, ntohs(fp->mode.rreqq.dest_hi), 1852 ntohl(fp->mode.rreqq.dest_lo)); 1853 if(bind == NULL){ 1854 #if __FreeBSD_version >= 500000 1855 printf("Unknown service addr 0x%08x:0x%08x tcode=%x\n", 1856 #else 1857 printf("Unknown service addr 0x%08x:0x%08lx tcode=%x\n", 1858 #endif 1859 ntohs(fp->mode.rreqq.dest_hi), 1860 ntohl(fp->mode.rreqq.dest_lo), 1861 fp->mode.common.tcode); 1862 if (fc->status == FWBUSRESET) { 1863 printf("fw_rcv: cannot response(bus reset)!\n"); 1864 goto err; 1865 } 1866 xfer = fw_xfer_alloc(); 1867 if(xfer == NULL){ 1868 return; 1869 } 1870 xfer->spd = spd; 1871 xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT); 1872 resfp = (struct fw_pkt *)xfer->send.buf; 1873 switch(fp->mode.common.tcode){ 1874 case FWTCODE_WREQQ: 1875 case FWTCODE_WREQB: 1876 resfp->mode.hdr.tcode = FWTCODE_WRES; 1877 xfer->send.len = 12; 1878 break; 1879 case FWTCODE_RREQQ: 1880 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1881 xfer->send.len = 16; 1882 break; 1883 case FWTCODE_RREQB: 1884 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1885 xfer->send.len = 16; 1886 break; 1887 case FWTCODE_LREQ: 1888 resfp->mode.hdr.tcode = FWTCODE_LRES; 1889 xfer->send.len = 16; 1890 break; 1891 } 1892 resfp->mode.hdr.dst = fp->mode.hdr.src; 1893 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1894 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1895 resfp->mode.rresb.rtcode = 7; 1896 resfp->mode.rresb.extcode = 0; 1897 resfp->mode.rresb.len = 0; 1898 /* 1899 xfer->act.hand = fw_asy_callback; 1900 */ 1901 xfer->act.hand = fw_xfer_free; 1902 if(fw_asyreq(fc, -1, xfer)){ 1903 fw_xfer_free( xfer); 1904 return; 1905 } 1906 goto err; 1907 } 1908 switch(bind->xfer->act_type){ 1909 case FWACT_XFER: 1910 xfer = fw_xfer_alloc(); 1911 if(xfer == NULL) goto err; 1912 xfer->fc = bind->xfer->fc; 1913 xfer->sc = bind->xfer->sc; 1914 xfer->recv.buf = buf; 1915 xfer->recv.len = len; 1916 xfer->recv.off = off; 1917 xfer->spd = spd; 1918 xfer->act.hand = bind->xfer->act.hand; 1919 if (fc->status != FWBUSRESET) 1920 xfer->act.hand(xfer); 1921 else 1922 STAILQ_INSERT_TAIL(&fc->pending, xfer, link); 1923 return; 1924 break; 1925 case FWACT_CH: 1926 if(fc->ir[bind->xfer->sub]->queued >= 1927 fc->ir[bind->xfer->sub]->maxq){ 1928 device_printf(fc->bdev, 1929 "Discard a packet %x %d\n", 1930 bind->xfer->sub, 1931 fc->ir[bind->xfer->sub]->queued); 1932 goto err; 1933 } 1934 xfer = fw_xfer_alloc(); 1935 if(xfer == NULL) goto err; 1936 xfer->recv.buf = buf; 1937 xfer->recv.len = len; 1938 xfer->recv.off = off; 1939 xfer->spd = spd; 1940 s = splfw(); 1941 fc->ir[bind->xfer->sub]->queued++; 1942 STAILQ_INSERT_TAIL(&fc->ir[bind->xfer->sub]->q, xfer, link); 1943 splx(s); 1944 1945 wakeup((caddr_t)fc->ir[bind->xfer->sub]); 1946 1947 return; 1948 break; 1949 default: 1950 goto err; 1951 break; 1952 } 1953 break; 1954 case FWTCODE_STREAM: 1955 { 1956 struct fw_xferq *xferq; 1957 1958 xferq = fc->ir[sub]; 1959 #if 0 1960 printf("stream rcv dma %d len %d off %d spd %d\n", 1961 sub, len, off, spd); 1962 #endif 1963 if(xferq->queued >= xferq->maxq) { 1964 printf("receive queue is full\n"); 1965 goto err; 1966 } 1967 xfer = fw_xfer_alloc(); 1968 if(xfer == NULL) goto err; 1969 xfer->recv.buf = buf; 1970 xfer->recv.len = len; 1971 xfer->recv.off = off; 1972 xfer->spd = spd; 1973 s = splfw(); 1974 xferq->queued++; 1975 STAILQ_INSERT_TAIL(&xferq->q, xfer, link); 1976 splx(s); 1977 sc = device_get_softc(fc->bdev); 1978 #if __FreeBSD_version >= 500000 1979 if (SEL_WAITING(&xferq->rsel)) 1980 #else 1981 if (&xferq->rsel.si_pid != 0) 1982 #endif 1983 selwakeup(&xferq->rsel); 1984 if (xferq->flag & FWXFERQ_WAKEUP) { 1985 xferq->flag &= ~FWXFERQ_WAKEUP; 1986 wakeup((caddr_t)xferq); 1987 } 1988 if (xferq->flag & FWXFERQ_HANDLER) { 1989 xferq->hand(xferq); 1990 } 1991 return; 1992 break; 1993 } 1994 default: 1995 printf("fw_rcv: unknow tcode\n"); 1996 break; 1997 } 1998 err: 1999 free(buf, M_DEVBUF); 2000 } 2001 2002 /* 2003 * Post process for Bus Manager election process. 2004 */ 2005 static void 2006 fw_try_bmr_callback(struct fw_xfer *xfer) 2007 { 2008 struct fw_pkt *sfp,*rfp; 2009 struct firewire_comm *fc; 2010 2011 if(xfer == NULL) return; 2012 fc = xfer->fc; 2013 if(xfer->resp != 0){ 2014 goto error; 2015 } 2016 2017 if(xfer->send.buf == NULL){ 2018 goto error; 2019 } 2020 sfp = (struct fw_pkt *)xfer->send.buf; 2021 2022 if(xfer->recv.buf == NULL){ 2023 goto error; 2024 } 2025 rfp = (struct fw_pkt *)xfer->recv.buf; 2026 CSRARC(fc, BUS_MGR_ID) 2027 = fc->set_bmr(fc, ntohl(rfp->mode.lres.payload[0]) & 0x3f); 2028 device_printf(fc->bdev, "new bus manager %d ", 2029 CSRARC(fc, BUS_MGR_ID)); 2030 if((htonl(rfp->mode.lres.payload[0]) & 0x3f) == fc->nodeid){ 2031 printf("(me)\n"); 2032 /* If I am bus manager, optimize gapcount */ 2033 if(fc->max_hop <= MAX_GAPHOP ){ 2034 fw_phy_config(fc, -1, gap_cnt[fc->max_hop]); 2035 } 2036 }else{ 2037 printf("\n"); 2038 } 2039 error: 2040 fw_xfer_free(xfer); 2041 } 2042 2043 /* 2044 * To candidate Bus Manager election process. 2045 */ 2046 void 2047 fw_try_bmr(void *arg) 2048 { 2049 struct fw_xfer *xfer; 2050 struct firewire_comm *fc = (struct firewire_comm *)arg; 2051 struct fw_pkt *fp; 2052 int err = 0; 2053 2054 xfer = fw_xfer_alloc(); 2055 if(xfer == NULL){ 2056 return; 2057 } 2058 xfer->send.len = 24; 2059 xfer->spd = 0; 2060 xfer->send.buf = malloc(24, M_DEVBUF, M_DONTWAIT); 2061 if(xfer->send.buf == NULL){ 2062 fw_xfer_free( xfer); 2063 return; 2064 } 2065 2066 fc->status = FWBUSMGRELECT; 2067 2068 xfer->send.off = 0; 2069 fp = (struct fw_pkt *)xfer->send.buf; 2070 fp->mode.lreq.dest_hi = htons(0xffff); 2071 fp->mode.lreq.tlrt = 0; 2072 fp->mode.lreq.tcode = FWTCODE_LREQ; 2073 fp->mode.lreq.pri = 0; 2074 fp->mode.lreq.src = 0; 2075 fp->mode.lreq.len = htons(8); 2076 fp->mode.lreq.extcode = htons(FW_LREQ_CMPSWAP); 2077 xfer->dst = FWLOCALBUS | fc->irm; 2078 fp->mode.lreq.dst = htons(xfer->dst); 2079 fp->mode.lreq.dest_lo = htonl(0xf0000000 | BUS_MGR_ID); 2080 fp->mode.lreq.payload[0] = 0x3f; 2081 fp->mode.lreq.payload[1] = fc->nodeid; 2082 xfer->act_type = FWACT_XFER; 2083 xfer->act.hand = fw_try_bmr_callback; 2084 2085 err = fw_asyreq(fc, -1, xfer); 2086 if(err){ 2087 fw_xfer_free( xfer); 2088 return; 2089 } 2090 return; 2091 } 2092 2093 #ifdef FW_VMACCESS 2094 /* 2095 * Software implementation for physical memory block access. 2096 * XXX:Too slow, usef for debug purpose only. 2097 */ 2098 static void 2099 fw_vmaccess(struct fw_xfer *xfer){ 2100 struct fw_pkt *rfp, *sfp = NULL; 2101 u_int32_t *ld = (u_int32_t *)(xfer->recv.buf + xfer->recv.off); 2102 2103 printf("vmaccess spd:%2x len:%03x %d data:%08x %08x %08x %08x\n", 2104 xfer->spd, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2105 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2106 if(xfer->resp != 0){ 2107 fw_xfer_free( xfer); 2108 return; 2109 } 2110 if(xfer->recv.buf == NULL){ 2111 fw_xfer_free( xfer); 2112 return; 2113 } 2114 rfp = (struct fw_pkt *)xfer->recv.buf; 2115 switch(rfp->mode.hdr.tcode){ 2116 /* XXX need fix for 64bit arch */ 2117 case FWTCODE_WREQB: 2118 xfer->send.buf = malloc(12, M_DEVBUF, M_NOWAIT); 2119 xfer->send.len = 12; 2120 sfp = (struct fw_pkt *)xfer->send.buf; 2121 bcopy(rfp->mode.wreqb.payload, 2122 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2123 sfp->mode.wres.tcode = FWTCODE_WRES; 2124 sfp->mode.wres.rtcode = 0; 2125 break; 2126 case FWTCODE_WREQQ: 2127 xfer->send.buf = malloc(12, M_DEVBUF, M_NOWAIT); 2128 xfer->send.len = 12; 2129 sfp->mode.wres.tcode = FWTCODE_WRES; 2130 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2131 sfp->mode.wres.rtcode = 0; 2132 break; 2133 case FWTCODE_RREQB: 2134 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_DEVBUF, M_NOWAIT); 2135 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2136 sfp = (struct fw_pkt *)xfer->send.buf; 2137 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2138 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2139 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2140 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2141 sfp->mode.rresb.rtcode = 0; 2142 sfp->mode.rresb.extcode = 0; 2143 break; 2144 case FWTCODE_RREQQ: 2145 xfer->send.buf = malloc(16, M_DEVBUF, M_NOWAIT); 2146 xfer->send.len = 16; 2147 sfp = (struct fw_pkt *)xfer->send.buf; 2148 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2149 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2150 sfp->mode.rresb.rtcode = 0; 2151 break; 2152 default: 2153 fw_xfer_free( xfer); 2154 return; 2155 } 2156 xfer->send.off = 0; 2157 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2158 xfer->dst = ntohs(rfp->mode.hdr.src); 2159 xfer->act.hand = fw_xfer_free; 2160 xfer->retry_req = fw_asybusy; 2161 2162 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2163 sfp->mode.hdr.pri = 0; 2164 2165 fw_asyreq(xfer->fc, -1, xfer); 2166 /**/ 2167 return; 2168 } 2169 #endif 2170 2171 /* 2172 * CRC16 check-sum for IEEE1394 register blocks. 2173 */ 2174 u_int16_t 2175 fw_crc16(u_int32_t *ptr, u_int32_t len){ 2176 u_int32_t i, sum, crc = 0; 2177 int shift; 2178 len = (len + 3) & ~3; 2179 for(i = 0 ; i < len ; i+= 4){ 2180 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2181 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2182 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2183 } 2184 crc &= 0xffff; 2185 } 2186 return((u_int16_t) crc); 2187 } 2188 2189 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); 2190 MODULE_VERSION(firewire, 1); 2191