firewire.c revision 109890
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: head/sys/dev/firewire/firewire.c 109890 2003-01-26 15:39:04Z simokawa $ 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 60int firewire_debug=0, try_bmr=1; 61SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 62 "FireWire driver debug flag"); 63SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 64SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 65 "Try to be a bus manager"); 66 67#define FW_MAXASYRTY 4 68#define FW_MAXDEVRCNT 4 69 70#define XFER_TIMEOUT 0 71 72devclass_t firewire_devclass; 73 74static int firewire_match __P((device_t)); 75static int firewire_attach __P((device_t)); 76static int firewire_detach __P((device_t)); 77#if 0 78static int firewire_shutdown __P((device_t)); 79#endif 80static device_t firewire_add_child __P((device_t, int, const char *, int)); 81static void fw_try_bmr __P((void *)); 82static void fw_try_bmr_callback __P((struct fw_xfer *)); 83static void fw_asystart __P((struct fw_xfer *)); 84static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *)); 85static void fw_bus_probe __P((struct firewire_comm *)); 86static void fw_bus_explore __P((struct firewire_comm *)); 87static void fw_bus_explore_callback __P((struct fw_xfer *)); 88static void fw_attach_dev __P((struct firewire_comm *)); 89#ifdef FW_VMACCESS 90static void fw_vmaccess __P((struct fw_xfer *)); 91#endif 92struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 93 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *)))); 94 95static device_method_t firewire_methods[] = { 96 /* Device interface */ 97 DEVMETHOD(device_probe, firewire_match), 98 DEVMETHOD(device_attach, firewire_attach), 99 DEVMETHOD(device_detach, firewire_detach), 100 DEVMETHOD(device_suspend, bus_generic_suspend), 101 DEVMETHOD(device_resume, bus_generic_resume), 102 DEVMETHOD(device_shutdown, bus_generic_shutdown), 103 104 /* Bus interface */ 105 DEVMETHOD(bus_add_child, firewire_add_child), 106 DEVMETHOD(bus_print_child, bus_generic_print_child), 107 108 { 0, 0 } 109}; 110char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"}; 111 112#define MAX_GAPHOP 16 113u_int gap_cnt[] = {1, 1, 4, 6, 9, 12, 14, 17, 114 20, 23, 25, 28, 31, 33, 36, 39, 42}; 115 116extern struct cdevsw firewire_cdevsw; 117 118static driver_t firewire_driver = { 119 "firewire", 120 firewire_methods, 121 sizeof(struct firewire_softc), 122}; 123 124/* 125 * To lookup node id. from EUI64. 126 */ 127struct fw_device * 128fw_noderesolve(struct firewire_comm *fc, struct fw_eui64 eui) 129{ 130 struct fw_device *fwdev; 131 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 132 fwdev = TAILQ_NEXT(fwdev, link)){ 133 if(fwdev->eui.hi == eui.hi && fwdev->eui.lo == eui.lo){ 134 break; 135 } 136 } 137 if(fwdev == NULL) return NULL; 138 if(fwdev->status == FWDEVINVAL) return NULL; 139 return fwdev; 140} 141 142/* 143 * Async. request procedure for userland application. 144 */ 145int 146fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 147{ 148 int err = 0; 149 struct fw_xferq *xferq; 150 int tl = 0, len; 151 struct fw_pkt *fp; 152 int tcode; 153 struct tcode_info *info; 154 155 if(xfer == NULL) return EINVAL; 156 if(xfer->send.len > MAXREC(fc->maxrec)){ 157 printf("send.len > maxrec\n"); 158 return EINVAL; 159 } 160 if(xfer->act.hand == NULL){ 161 printf("act.hand == NULL\n"); 162 return EINVAL; 163 } 164 fp = (struct fw_pkt *)xfer->send.buf; 165 166 tcode = fp->mode.common.tcode & 0xf; 167 info = &fc->tcode[tcode]; 168 if (info->flag == 0) { 169 printf("invalid tcode=%d\n", tcode); 170 return EINVAL; 171 } 172 if (info->flag & FWTI_REQ) 173 xferq = fc->atq; 174 else 175 xferq = fc->ats; 176 len = info->hdr_len; 177 if (info->flag & FWTI_BLOCK_STR) 178 len += ntohs(fp->mode.stream.len); 179 else if (info->flag & FWTI_BLOCK_ASY) 180 len += ntohs(fp->mode.rresb.len); 181 if( len > xfer->send.len ){ 182 printf("len(%d) > send.len(%d) (tcode=%d)\n", 183 len, xfer->send.len, tcode); 184 return EINVAL; 185 } 186 xfer->send.len = len; 187 188 if(xferq->start == NULL){ 189 printf("xferq->start == NULL\n"); 190 return EINVAL; 191 } 192 if(!(xferq->queued < xferq->maxq)){ 193 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 194 xferq->queued); 195 return EINVAL; 196 } 197 198 199 if (info->flag & FWTI_TLABEL) { 200 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 201 return EIO; 202 fp->mode.hdr.tlrt = tl << 2; 203 } 204 205 xfer->tl = tl; 206 xfer->tcode = tcode; 207 xfer->resp = 0; 208 xfer->fc = fc; 209 xfer->q = xferq; 210 xfer->act_type = FWACT_XFER; 211 xfer->retry_req = fw_asybusy; 212 213 fw_asystart(xfer); 214 return err; 215} 216/* 217 * Wakeup blocked process. 218 */ 219void 220fw_asy_callback(struct fw_xfer *xfer){ 221 wakeup(xfer); 222 return; 223} 224/* 225 * Postpone to later retry. 226 */ 227void fw_asybusy(struct fw_xfer *xfer){ 228#if 1 229 printf("fw_asybusy\n"); 230#endif 231#if XFER_TIMEOUT 232 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 233#endif 234/* 235 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 236*/ 237 DELAY(20000); 238 fw_asystart(xfer); 239 return; 240} 241#if XFER_TIMEOUT 242/* 243 * Post timeout for async. request. 244 */ 245void 246fw_xfer_timeout(void *arg) 247{ 248 int s; 249 struct fw_xfer *xfer; 250 251 xfer = (struct fw_xfer *)arg; 252 printf("fw_xfer_timeout status=%d resp=%d\n", xfer->state, xfer->resp); 253 /* XXX set error code */ 254 s = splfw(); 255 xfer->act.hand(xfer); 256 splx(s); 257} 258#endif 259/* 260 * Async. request with given xfer structure. 261 */ 262static void 263fw_asystart(struct fw_xfer *xfer) 264{ 265 struct firewire_comm *fc = xfer->fc; 266 int s; 267 if(xfer->retry++ >= fc->max_asyretry){ 268 xfer->resp = EBUSY; 269 xfer->state = FWXF_BUSY; 270 xfer->act.hand(xfer); 271 return; 272 } 273#if 0 /* XXX allow bus explore packets only after bus rest */ 274 if (fc->status < FWBUSEXPLORE) { 275 xfer->resp = EAGAIN; 276 xfer->state = FWXF_BUSY; 277 if (xfer->act.hand != NULL) 278 xfer->act.hand(xfer); 279 return; 280 } 281#endif 282 s = splfw(); 283 xfer->state = FWXF_INQ; 284 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 285 xfer->q->queued ++; 286 splx(s); 287 /* XXX just queue for mbuf */ 288 if (xfer->mbuf == NULL) 289 xfer->q->start(fc); 290#if XFER_TIMEOUT 291 if (xfer->act.hand != NULL) 292 xfer->ch = timeout(fw_xfer_timeout, (void *)xfer, hz); 293#endif 294 return; 295} 296 297static int 298firewire_match( device_t dev ) 299{ 300 device_set_desc(dev, "IEEE1394(FireWire) bus"); 301 return -140; 302} 303 304/* 305 * The attach routine. 306 */ 307static int 308firewire_attach( device_t dev ) 309{ 310 int i, unitmask, mn; 311 struct firewire_softc *sc = device_get_softc(dev); 312 device_t pa = device_get_parent(dev); 313 struct firewire_comm *fc; 314 dev_t d; 315 316 fc = (struct firewire_comm *)device_get_softc(pa); 317 sc->fc = fc; 318 319 unitmask = UNIT2MIN(device_get_unit(dev)); 320 321 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 322 for ( i = 0 ; i < fc->nisodma ; i++ ){ 323 mn = unitmask | i; 324 /* XXX device name should be improved */ 325 d = make_dev(&firewire_cdevsw, unit2minor(mn), 326 UID_ROOT, GID_OPERATOR, 0660, 327 "fw%x", mn); 328#if __FreeBSD_version >= 500000 329 if (i == 0) 330 sc->dev = d; 331 else 332 dev_depends(sc->dev, d); 333#else 334 sc->dev[i] = d; 335#endif 336 } 337 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG), 338 UID_ROOT, GID_OPERATOR, 0660, 339 "fwmem%d", device_get_unit(dev)); 340#if __FreeBSD_version >= 500000 341 dev_depends(sc->dev, d); 342#else 343 sc->dev[i] = d; 344#endif 345 sc->fc->timeouthandle = timeout((timeout_t *)sc->fc->timeout, (void *)sc->fc, hz * 10); 346 347 callout_init(&sc->fc->busprobe_callout 348#if __FreeBSD_version >= 500000 349 , /* mpsafe? */ 0); 350#else 351 ); 352#endif 353 354 /* Locate our children */ 355 bus_generic_probe(dev); 356 357 /* launch attachement of the added children */ 358 bus_generic_attach(dev); 359 360 /* bus_reset */ 361 fc->ibr(fc); 362 363 return 0; 364} 365 366/* 367 * Attach it as child. 368 */ 369static device_t 370firewire_add_child(device_t dev, int order, const char *name, int unit) 371{ 372 device_t child; 373 struct firewire_softc *sc; 374 375 sc = (struct firewire_softc *)device_get_softc(dev); 376 child = device_add_child(dev, name, unit); 377 if (child) { 378 device_set_ivars(child, sc->fc); 379 device_probe_and_attach(child); 380 } 381 382 return child; 383} 384 385/* 386 * Dettach it. 387 */ 388static int 389firewire_detach( device_t dev ) 390{ 391 struct firewire_softc *sc; 392 393 sc = (struct firewire_softc *)device_get_softc(dev); 394 395#if __FreeBSD_version >= 500000 396 destroy_dev(sc->dev); 397#else 398 { 399 int j; 400 for (j = 0 ; j < sc->fc->nisodma + 1; j++) 401 destroy_dev(sc->dev[j]); 402 } 403#endif 404 /* XXX xfree_free and untimeout on all xfers */ 405 untimeout((timeout_t *)sc->fc->timeout, sc->fc, sc->fc->timeouthandle); 406 free(sc->fc->topology_map, M_DEVBUF); 407 free(sc->fc->speed_map, M_DEVBUF); 408 bus_generic_detach(dev); 409 return(0); 410} 411#if 0 412static int 413firewire_shutdown( device_t dev ) 414{ 415 return 0; 416} 417#endif 418 419/* 420 * Called after bus reset. 421 */ 422void 423fw_busreset(struct firewire_comm *fc) 424{ 425 int i; 426 struct fw_xfer *xfer; 427 428 switch(fc->status){ 429 case FWBUSMGRELECT: 430 untimeout((timeout_t *)fw_try_bmr, (void *)fc, fc->bmrhandle); 431 break; 432 default: 433 break; 434 } 435 fc->status = FWBUSRESET; 436/* XXX: discard all queued packet */ 437 while((xfer = STAILQ_FIRST(&fc->atq->q)) != NULL){ 438 STAILQ_REMOVE_HEAD(&fc->atq->q, link); 439 xfer->resp = EAGAIN; 440 switch(xfer->act_type){ 441 case FWACT_XFER: 442 fw_xfer_done(xfer); 443 break; 444 default: 445 break; 446 } 447 fw_xfer_free( xfer); 448 } 449 while((xfer = STAILQ_FIRST(&fc->ats->q)) != NULL){ 450 STAILQ_REMOVE_HEAD(&fc->ats->q, link); 451 xfer->resp = EAGAIN; 452 switch(xfer->act_type){ 453 case FWACT_XFER: 454 fw_xfer_done(xfer); 455 default: 456 break; 457 } 458 fw_xfer_free( xfer); 459 } 460 for(i = 0; i < fc->nisodma; i++) 461 while((xfer = STAILQ_FIRST(&fc->it[i]->q)) != NULL){ 462 STAILQ_REMOVE_HEAD(&fc->it[i]->q, link); 463 xfer->resp = 0; 464 switch(xfer->act_type){ 465 case FWACT_XFER: 466 fw_xfer_done(xfer); 467 break; 468 default: 469 break; 470 } 471 fw_xfer_free( xfer); 472 } 473 474 CSRARC(fc, STATE_CLEAR) 475 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 476 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 477 CSRARC(fc, NODE_IDS) = 0x3f; 478 479 CSRARC(fc, TOPO_MAP + 8) = 0; 480 fc->irm = -1; 481 482 fc->max_node = -1; 483 484 for(i = 2; i < 0x100/4 - 2 ; i++){ 485 CSRARC(fc, SPED_MAP + i * 4) = 0; 486 } 487 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 488 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 489 CSRARC(fc, RESET_START) = 0; 490 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 491 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 492 CSRARC(fc, CYCLE_TIME) = 0x0; 493 CSRARC(fc, BUS_TIME) = 0x0; 494 CSRARC(fc, BUS_MGR_ID) = 0x3f; 495 CSRARC(fc, BANDWIDTH_AV) = 4915; 496 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 497 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 498 CSRARC(fc, IP_CHANNELS) = (1 << 31); 499 500 CSRARC(fc, CONF_ROM) = 0x04 << 24; 501 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 502 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 503 1 << 28 | 0xff << 16 | 0x09 << 8; 504 CSRARC(fc, CONF_ROM + 0xc) = 0; 505 506/* DV depend CSRs see blue book */ 507 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 508 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 509 510 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 511 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 512} 513 514/* Call once after reboot */ 515void fw_init(struct firewire_comm *fc) 516{ 517 int i; 518 struct csrdir *csrd; 519#ifdef FW_VMACCESS 520 struct fw_xfer *xfer; 521 struct fw_bind *fwb; 522#endif 523 524 fc->max_asyretry = FW_MAXASYRTY; 525 526 fc->arq->queued = 0; 527 fc->ars->queued = 0; 528 fc->atq->queued = 0; 529 fc->ats->queued = 0; 530 531 fc->arq->psize = PAGE_SIZE; 532 fc->ars->psize = PAGE_SIZE; 533 fc->atq->psize = 0; 534 fc->ats->psize = 0; 535 536 537 fc->arq->buf = NULL; 538 fc->ars->buf = NULL; 539 fc->atq->buf = NULL; 540 fc->ats->buf = NULL; 541 542 fc->arq->flag = FWXFERQ_PACKET; 543 fc->ars->flag = FWXFERQ_PACKET; 544 fc->atq->flag = FWXFERQ_PACKET; 545 fc->ats->flag = FWXFERQ_PACKET; 546 547 STAILQ_INIT(&fc->atq->q); 548 STAILQ_INIT(&fc->ats->q); 549 550 for( i = 0 ; i < fc->nisodma ; i ++ ){ 551 fc->it[i]->queued = 0; 552 fc->ir[i]->queued = 0; 553 554 fc->it[i]->start = NULL; 555 fc->ir[i]->start = NULL; 556 557 fc->it[i]->buf = NULL; 558 fc->ir[i]->buf = NULL; 559 560 fc->it[i]->flag = FWXFERQ_STREAM; 561 fc->ir[i]->flag = FWXFERQ_STREAM; 562 563 STAILQ_INIT(&fc->it[i]->q); 564 STAILQ_INIT(&fc->ir[i]->q); 565 566 STAILQ_INIT(&fc->it[i]->binds); 567 STAILQ_INIT(&fc->ir[i]->binds); 568 } 569 570 fc->arq->maxq = FWMAXQUEUE; 571 fc->ars->maxq = FWMAXQUEUE; 572 fc->atq->maxq = FWMAXQUEUE; 573 fc->ats->maxq = FWMAXQUEUE; 574 575 for( i = 0 ; i < fc->nisodma ; i++){ 576 fc->ir[i]->maxq = FWMAXQUEUE; 577 fc->it[i]->maxq = FWMAXQUEUE; 578 } 579/* Initialize csr registers */ 580 fc->topology_map = (struct fw_topology_map *)malloc( 581 sizeof(struct fw_topology_map), 582 M_DEVBUF, M_NOWAIT | M_ZERO); 583 fc->speed_map = (struct fw_speed_map *)malloc( 584 sizeof(struct fw_speed_map), 585 M_DEVBUF, M_NOWAIT | M_ZERO); 586 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 587 CSRARC(fc, TOPO_MAP + 4) = 1; 588 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 589 CSRARC(fc, SPED_MAP + 4) = 1; 590 591 TAILQ_INIT(&fc->devices); 592 STAILQ_INIT(&fc->pending); 593 594/* Initialize csr ROM work space */ 595 SLIST_INIT(&fc->ongocsr); 596 SLIST_INIT(&fc->csrfree); 597 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 598 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_DEVBUF,M_NOWAIT); 599 if(csrd == NULL) break; 600 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 601 } 602 603/* Initialize Async handlers */ 604 STAILQ_INIT(&fc->binds); 605 for( i = 0 ; i < 0x40 ; i++){ 606 STAILQ_INIT(&fc->tlabels[i]); 607 } 608 609/* DV depend CSRs see blue book */ 610#if 0 611 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 612 CSRARC(fc, oPCR) = 0x8000007a; 613 for(i = 4 ; i < 0x7c/4 ; i+=4){ 614 CSRARC(fc, i + oPCR) = 0x8000007a; 615 } 616 617 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 618 CSRARC(fc, iPCR) = 0x803f0000; 619 for(i = 4 ; i < 0x7c/4 ; i+=4){ 620 CSRARC(fc, i + iPCR) = 0x0; 621 } 622#endif 623 624 625#ifdef FW_VMACCESS 626 xfer = fw_xfer_alloc(); 627 if(xfer == NULL) return; 628 629 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_DEVBUF, M_NOWAIT); 630 if(fwb == NULL){ 631 fw_xfer_free(xfer); 632 } 633 xfer->act.hand = fw_vmaccess; 634 xfer->act_type = FWACT_XFER; 635 xfer->fc = fc; 636 xfer->sc = NULL; 637 638 fwb->start_hi = 0x2; 639 fwb->start_lo = 0; 640 fwb->addrlen = 0xffffffff; 641 fwb->xfer = xfer; 642 fw_bindadd(fc, fwb); 643#endif 644} 645 646/* 647 * To lookup binded process from IEEE1394 address. 648 */ 649struct fw_bind * 650fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 651{ 652 struct fw_bind *tfw; 653 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 654 tfw = STAILQ_NEXT(tfw, fclist)){ 655 if(tfw->xfer->act_type != FWACT_NULL && 656 tfw->start_hi == dest_hi && 657 tfw->start_lo <= dest_lo && 658 (tfw->start_lo + tfw->addrlen) > dest_lo){ 659 return(tfw); 660 } 661 } 662 return(NULL); 663} 664 665/* 666 * To bind IEEE1394 address block to process. 667 */ 668int 669fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 670{ 671 struct fw_bind *tfw, *tfw2 = NULL; 672 int err = 0; 673 tfw = STAILQ_FIRST(&fc->binds); 674 if(tfw == NULL){ 675 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 676 goto out; 677 } 678 if((tfw->start_hi > fwb->start_hi) || 679 (tfw->start_hi == fwb->start_hi && 680 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 681 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 682 goto out; 683 } 684 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 685 if((tfw->start_hi < fwb->start_hi) || 686 (tfw->start_hi == fwb->start_hi && 687 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 688 tfw2 = STAILQ_NEXT(tfw, fclist); 689 if(tfw2 == NULL) 690 break; 691 if((tfw2->start_hi > fwb->start_hi) || 692 (tfw2->start_hi == fwb->start_hi && 693 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 694 break; 695 }else{ 696 err = EBUSY; 697 goto out; 698 } 699 } 700 } 701 if(tfw != NULL){ 702 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 703 }else{ 704 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 705 } 706out: 707 if(!err && fwb->xfer->act_type == FWACT_CH){ 708 STAILQ_INSERT_HEAD(&fc->ir[fwb->xfer->sub]->binds, fwb, chlist); 709 } 710 return err; 711} 712 713/* 714 * To free IEEE1394 address block. 715 */ 716int 717fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 718{ 719 int s; 720 721 s = splfw(); 722 /* shall we check the existance? */ 723 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 724 splx(s); 725 if (fwb->xfer) 726 fw_xfer_free(fwb->xfer); 727 728 return 0; 729} 730 731/* 732 * To free transaction label. 733 */ 734static void 735fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 736{ 737 struct tlabel *tl; 738 int s = splfw(); 739 740 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 741 tl = STAILQ_NEXT(tl, link)){ 742 if(tl->xfer == xfer){ 743 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 744 free(tl, M_DEVBUF); 745 splx(s); 746 return; 747 } 748 } 749 splx(s); 750 return; 751} 752 753/* 754 * To obtain XFER structure by transaction label. 755 */ 756static struct fw_xfer * 757fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 758{ 759 struct fw_xfer *xfer; 760 struct tlabel *tl; 761 int s = splfw(); 762 763 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 764 tl = STAILQ_NEXT(tl, link)){ 765 if(tl->xfer->dst == node){ 766 xfer = tl->xfer; 767 splx(s); 768 return(xfer); 769 } 770 } 771 splx(s); 772 return(NULL); 773} 774 775/* 776 * To allocate IEEE1394 XFER structure. 777 */ 778struct fw_xfer * 779fw_xfer_alloc() 780{ 781 struct fw_xfer *xfer; 782 783 xfer = malloc(sizeof(struct fw_xfer), M_DEVBUF, M_NOWAIT | M_ZERO); 784 if (xfer == NULL) 785 return xfer; 786 787 xfer->time = time_second; 788 xfer->sub = -1; 789 790 return xfer; 791} 792 793/* 794 * IEEE1394 XFER post process. 795 */ 796void 797fw_xfer_done(struct fw_xfer *xfer) 798{ 799 if (xfer->act.hand == NULL) 800 return; 801 802#if XFER_TIMEOUT 803 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 804#endif 805 806 if (xfer->fc->status != FWBUSRESET) 807 xfer->act.hand(xfer); 808 else { 809 printf("fw_xfer_done: pending\n"); 810 if (xfer->fc != NULL) 811 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 812 else 813 panic("fw_xfer_done: why xfer->fc is NULL?"); 814 } 815} 816 817/* 818 * To free IEEE1394 XFER structure. 819 */ 820void 821fw_xfer_free( struct fw_xfer* xfer) 822{ 823 int s; 824 if(xfer == NULL ) return; 825 if(xfer->state == FWXF_INQ){ 826 printf("fw_xfer_free FWXF_INQ\n"); 827 s = splfw(); 828 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 829 xfer->q->queued --; 830 splx(s); 831 } 832 if(xfer->fc != NULL){ 833 if(xfer->state == FWXF_START){ 834#if 0 /* this could happen if we call fwohci_arcv() before fwohci_txd() */ 835 printf("fw_xfer_free FWXF_START\n"); 836#endif 837 s = splfw(); 838 xfer->q->drain(xfer->fc, xfer); 839 splx(s); 840 } 841 } 842 if(xfer->send.buf != NULL){ 843 free(xfer->send.buf, M_DEVBUF); 844 } 845 if(xfer->recv.buf != NULL){ 846 free(xfer->recv.buf, M_DEVBUF); 847 } 848 if(xfer->fc != NULL){ 849 fw_tl_free(xfer->fc, xfer); 850 } 851 free(xfer, M_DEVBUF); 852} 853 854/* 855 * Callback for PHY configuration. 856 */ 857static void 858fw_phy_config_callback(struct fw_xfer *xfer) 859{ 860#if 0 861 printf("phy_config done state=%d resp=%d\n", 862 xfer->state, xfer->resp); 863#endif 864 fw_xfer_free(xfer); 865 /* XXX need bus reset ?? */ 866 /* sc->fc->ibr(xfer->fc); LOOP */ 867} 868 869/* 870 * To configure PHY. 871 */ 872static void 873fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 874{ 875 struct fw_xfer *xfer; 876 struct fw_pkt *fp; 877 878 fc->status = FWBUSPHYCONF; 879 880#if 0 881 DELAY(100000); 882#endif 883 xfer = fw_xfer_alloc(); 884 xfer->send.len = 12; 885 xfer->send.off = 0; 886 xfer->fc = fc; 887 xfer->retry_req = fw_asybusy; 888 xfer->act.hand = fw_phy_config_callback; 889 890 xfer->send.buf = malloc(sizeof(u_int32_t), 891 M_DEVBUF, M_NOWAIT | M_ZERO); 892 fp = (struct fw_pkt *)xfer->send.buf; 893 fp->mode.ld[1] = 0; 894 if (root_node >= 0) 895 fp->mode.ld[1] |= htonl((root_node & 0x3f) << 24 | 1 << 23); 896 if (gap_count >= 0) 897 fp->mode.ld[1] |= htonl(1 << 22 | (gap_count & 0x3f) << 16); 898 fp->mode.ld[2] = ~fp->mode.ld[1]; 899/* XXX Dangerous, how to pass PHY packet to device driver */ 900 fp->mode.common.tcode |= FWTCODE_PHY; 901 902 if (firewire_debug) 903 printf("send phy_config root_node=%d gap_count=%d\n", 904 root_node, gap_count); 905 fw_asyreq(fc, -1, xfer); 906} 907 908#if 0 909/* 910 * Dump self ID. 911 */ 912static void 913fw_print_sid(u_int32_t sid) 914{ 915 union fw_self_id *s; 916 s = (union fw_self_id *) &sid; 917 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 918 " p0:%d p1:%d p2:%d i:%d m:%d\n", 919 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 920 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 921 s->p0.power_class, s->p0.port0, s->p0.port1, 922 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 923} 924#endif 925 926/* 927 * To receive self ID. 928 */ 929void fw_sidrcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int off) 930{ 931 u_int32_t *p, *sid = (u_int32_t *)(buf + off); 932 union fw_self_id *self_id; 933 u_int i, j, node, c_port = 0, i_branch = 0; 934 935 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 936 fc->status = FWBUSINIT; 937 fc->max_node = fc->nodeid & 0x3f; 938 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 939 fc->status = FWBUSCYMELECT; 940 fc->topology_map->crc_len = 2; 941 fc->topology_map->generation ++; 942 fc->topology_map->self_id_count = 0; 943 fc->topology_map->node_count = 0; 944 fc->speed_map->generation ++; 945 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 946 self_id = &fc->topology_map->self_id[0]; 947 for(i = 0; i < fc->sid_cnt; i ++){ 948 if (sid[1] != ~sid[0]) { 949 printf("fw_sidrcv: invalid self-id packet\n"); 950 sid += 2; 951 continue; 952 } 953 *self_id = *((union fw_self_id *)sid); 954 fc->topology_map->crc_len++; 955 if(self_id->p0.sequel == 0){ 956 fc->topology_map->node_count ++; 957 c_port = 0; 958#if 0 959 fw_print_sid(sid[0]); 960#endif 961 node = self_id->p0.phy_id; 962 if(fc->max_node < node){ 963 fc->max_node = self_id->p0.phy_id; 964 } 965 /* XXX I'm not sure this is the right speed_map */ 966 fc->speed_map->speed[node][node] 967 = self_id->p0.phy_speed; 968 for (j = 0; j < node; j ++) { 969 fc->speed_map->speed[j][node] 970 = fc->speed_map->speed[node][j] 971 = min(fc->speed_map->speed[j][j], 972 self_id->p0.phy_speed); 973 } 974 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 975 (self_id->p0.link_active && self_id->p0.contender)) { 976 fc->irm = self_id->p0.phy_id; 977 } 978 if(self_id->p0.port0 >= 0x2){ 979 c_port++; 980 } 981 if(self_id->p0.port1 >= 0x2){ 982 c_port++; 983 } 984 if(self_id->p0.port2 >= 0x2){ 985 c_port++; 986 } 987 } 988 if(c_port > 2){ 989 i_branch += (c_port - 2); 990 } 991 sid += 2; 992 self_id++; 993 fc->topology_map->self_id_count ++; 994 } 995 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 996 /* CRC */ 997 fc->topology_map->crc = fw_crc16( 998 (u_int32_t *)&fc->topology_map->generation, 999 fc->topology_map->crc_len * 4); 1000 fc->speed_map->crc = fw_crc16( 1001 (u_int32_t *)&fc->speed_map->generation, 1002 fc->speed_map->crc_len * 4); 1003 /* byteswap and copy to CSR */ 1004 p = (u_int32_t *)fc->topology_map; 1005 for (i = 0; i <= fc->topology_map->crc_len; i++) 1006 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1007 p = (u_int32_t *)fc->speed_map; 1008 CSRARC(fc, SPED_MAP) = htonl(*p++); 1009 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1010 /* don't byte-swap u_int8_t array */ 1011 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1012 1013 fc->max_hop = fc->max_node - i_branch; 1014#if 1 1015 printf(", maxhop <= %d", fc->max_hop); 1016#endif 1017 1018 if(fc->irm == -1 ){ 1019 printf(", Not found IRM capable node"); 1020 }else{ 1021 printf(", cable IRM = %d", fc->irm); 1022 if (fc->irm == fc->nodeid) 1023 printf(" (me)\n"); 1024 else 1025 printf("\n"); 1026 } 1027 1028 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1029 if (fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)) { 1030 fc->status = FWBUSMGRDONE; 1031 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1032 } else { 1033 fc->status = FWBUSMGRELECT; 1034 fc->bmrhandle = timeout((timeout_t *)fw_try_bmr, 1035 (void *)fc, hz / 8); 1036 } 1037 } else { 1038 fc->status = FWBUSMGRDONE; 1039#if 0 1040 device_printf(fc->bdev, "BMR = %x\n", 1041 CSRARC(fc, BUS_MGR_ID)); 1042#endif 1043 } 1044 free(buf, M_DEVBUF); 1045 /* Optimize gap_count, if I am BMGR */ 1046 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ 1047 fw_phy_config(fc, -1, gap_cnt[fc->max_hop]); 1048 } 1049 callout_reset(&fc->busprobe_callout, hz/4, 1050 (void *)fw_bus_probe, (void *)fc); 1051} 1052 1053/* 1054 * To probe devices on the IEEE1394 bus. 1055 */ 1056static void 1057fw_bus_probe(struct firewire_comm *fc) 1058{ 1059 int s; 1060 struct fw_device *fwdev, *next; 1061 1062 s = splfw(); 1063 fc->status = FWBUSEXPLORE; 1064 fc->retry_count = 0; 1065 1066/* 1067 * Invalidate all devices, just after bus reset. Devices 1068 * to be removed has not been seen longer time. 1069 */ 1070 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1071 next = TAILQ_NEXT(fwdev, link); 1072 if(fwdev->status != FWDEVINVAL){ 1073 fwdev->status = FWDEVINVAL; 1074 fwdev->rcnt = 0; 1075 }else if(fwdev->rcnt < FW_MAXDEVRCNT){ 1076 fwdev->rcnt ++; 1077 }else{ 1078 TAILQ_REMOVE(&fc->devices, fwdev, link); 1079 free(fwdev, M_DEVBUF); 1080 } 1081 } 1082 fc->ongonode = 0; 1083 fc->ongoaddr = CSRROMOFF; 1084 fc->ongodev = NULL; 1085 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1086 fw_bus_explore(fc); 1087 splx(s); 1088} 1089 1090/* 1091 * To collect device informations on the IEEE1394 bus. 1092 */ 1093static void 1094fw_bus_explore(struct firewire_comm *fc ) 1095{ 1096 int err = 0; 1097 struct fw_device *fwdev, *tfwdev; 1098 u_int32_t addr; 1099 struct fw_xfer *xfer; 1100 struct fw_pkt *fp; 1101 1102 if(fc->status != FWBUSEXPLORE) 1103 return; 1104 1105loop: 1106 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1107 1108 if(fc->ongonode > fc->max_node) goto done; 1109 if(fc->ongonode >= 0x3f) goto done; 1110 1111 /* check link */ 1112 /* XXX we need to check phy_id first */ 1113 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1114 printf("fw_bus_explore: node %d link down\n", fc->ongonode); 1115 fc->ongonode++; 1116 goto loop; 1117 } 1118 1119 if(fc->ongoaddr <= CSRROMOFF && 1120 fc->ongoeui.hi == 0xffffffff && 1121 fc->ongoeui.lo == 0xffffffff ){ 1122 fc->ongoaddr = CSRROMOFF; 1123 addr = 0xf0000000 | fc->ongoaddr; 1124 }else if(fc->ongoeui.hi == 0xffffffff ){ 1125 fc->ongoaddr = CSRROMOFF + 0xc; 1126 addr = 0xf0000000 | fc->ongoaddr; 1127 }else if(fc->ongoeui.lo == 0xffffffff ){ 1128 fc->ongoaddr = CSRROMOFF + 0x10; 1129 addr = 0xf0000000 | fc->ongoaddr; 1130 }else if(fc->ongodev == NULL){ 1131 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 1132 fwdev = TAILQ_NEXT(fwdev, link)){ 1133 if(fwdev->eui.hi == fc->ongoeui.hi && fwdev->eui.lo == fc->ongoeui.lo){ 1134 break; 1135 } 1136 } 1137 if(fwdev != NULL){ 1138 fwdev->dst = fc->ongonode; 1139 fwdev->status = FWDEVATTACHED; 1140 fc->ongonode++; 1141 fc->ongoaddr = CSRROMOFF; 1142 fc->ongodev = NULL; 1143 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1144 goto loop; 1145 } 1146 fwdev = malloc(sizeof(struct fw_device), M_DEVBUF, M_NOWAIT); 1147 if(fwdev == NULL) 1148 return; 1149 fwdev->fc = fc; 1150 fwdev->rommax = 0; 1151 fwdev->dst = fc->ongonode; 1152 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1153 fwdev->status = FWDEVINIT; 1154#if 0 1155 fwdev->speed = CSRARC(fc, SPED_MAP + 8 + fc->ongonode / 4) 1156 >> ((3 - (fc->ongonode % 4)) * 8); 1157#else 1158 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1159#endif 1160 1161 tfwdev = TAILQ_FIRST(&fc->devices); 1162 while( tfwdev != NULL && 1163 (tfwdev->eui.hi > fwdev->eui.hi) && 1164 ((tfwdev->eui.hi == fwdev->eui.hi) && 1165 tfwdev->eui.lo > fwdev->eui.lo)){ 1166 tfwdev = TAILQ_NEXT( tfwdev, link); 1167 } 1168 if(tfwdev == NULL){ 1169 TAILQ_INSERT_TAIL(&fc->devices, fwdev, link); 1170 }else{ 1171 TAILQ_INSERT_BEFORE(tfwdev, fwdev, link); 1172 } 1173 1174 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1175 linkspeed[fwdev->speed], 1176 fc->ongoeui.hi, fc->ongoeui.lo); 1177 1178 fc->ongodev = fwdev; 1179 fc->ongoaddr = CSRROMOFF; 1180 addr = 0xf0000000 | fc->ongoaddr; 1181 }else{ 1182 addr = 0xf0000000 | fc->ongoaddr; 1183 } 1184#if 0 1185 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1186 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1187 fw_bus_explore_callback); 1188 if(xfer == NULL) goto done; 1189#else 1190 xfer = fw_xfer_alloc(); 1191 if(xfer == NULL){ 1192 goto done; 1193 } 1194 xfer->send.len = 16; 1195 xfer->spd = 0; 1196 xfer->send.buf = malloc(16, M_DEVBUF, M_NOWAIT); 1197 if(xfer->send.buf == NULL){ 1198 fw_xfer_free( xfer); 1199 return; 1200 } 1201 1202 xfer->send.off = 0; 1203 fp = (struct fw_pkt *)xfer->send.buf; 1204 fp->mode.rreqq.dest_hi = htons(0xffff); 1205 fp->mode.rreqq.tlrt = 0; 1206 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1207 fp->mode.rreqq.pri = 0; 1208 fp->mode.rreqq.src = 0; 1209 xfer->dst = FWLOCALBUS | fc->ongonode; 1210 fp->mode.rreqq.dst = htons(xfer->dst); 1211 fp->mode.rreqq.dest_lo = htonl(addr); 1212 xfer->act.hand = fw_bus_explore_callback; 1213 1214 err = fw_asyreq(fc, -1, xfer); 1215 if(err){ 1216 fw_xfer_free( xfer); 1217 return; 1218 } 1219#endif 1220 return; 1221done: 1222 /* fw_attach_devs */ 1223 fc->status = FWBUSEXPDONE; 1224 if (firewire_debug) 1225 printf("bus_explore done\n"); 1226 fw_attach_dev(fc); 1227 return; 1228 1229} 1230 1231/* Portable Async. request read quad */ 1232struct fw_xfer * 1233asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1234 u_int32_t addr_hi, u_int32_t addr_lo, 1235 void (*hand) __P((struct fw_xfer*))) 1236{ 1237 struct fw_xfer *xfer; 1238 struct fw_pkt *fp; 1239 int err; 1240 1241 xfer = fw_xfer_alloc(); 1242 if(xfer == NULL){ 1243 return NULL; 1244 } 1245 xfer->send.len = 16; 1246 xfer->spd = spd; /* XXX:min(spd, fc->spd) */ 1247 xfer->send.buf = malloc(16, M_DEVBUF, M_NOWAIT); 1248 if(xfer->send.buf == NULL){ 1249 fw_xfer_free( xfer); 1250 return NULL; 1251 } 1252 1253 xfer->send.off = 0; 1254 fp = (struct fw_pkt *)xfer->send.buf; 1255 fp->mode.rreqq.dest_hi = htons(addr_hi & 0xffff); 1256 if(tl & FWP_TL_VALID){ 1257 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1258 }else{ 1259 fp->mode.rreqq.tlrt = 0; 1260 } 1261 fp->mode.rreqq.tlrt |= rt & 0x3; 1262 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1263 fp->mode.rreqq.pri = 0; 1264 fp->mode.rreqq.src = 0; 1265 xfer->dst = addr_hi >> 16; 1266 fp->mode.rreqq.dst = htons(xfer->dst); 1267 fp->mode.rreqq.dest_lo = htonl(addr_lo); 1268 xfer->act.hand = hand; 1269 1270 err = fw_asyreq(fc, -1, xfer); 1271 if(err){ 1272 fw_xfer_free( xfer); 1273 return NULL; 1274 } 1275 return xfer; 1276} 1277 1278/* 1279 * Callback for the IEEE1394 bus information collection. 1280 */ 1281static void 1282fw_bus_explore_callback(struct fw_xfer *xfer) 1283{ 1284 struct firewire_comm *fc; 1285 struct fw_pkt *sfp,*rfp; 1286 struct csrhdr *chdr; 1287 struct csrdir *csrd; 1288 struct csrreg *csrreg; 1289 u_int32_t offset; 1290 1291 1292 if(xfer == NULL) return; 1293 fc = xfer->fc; 1294 if(xfer->resp != 0){ 1295 printf("resp != 0: node=%d addr=0x%x\n", 1296 fc->ongonode, fc->ongoaddr); 1297 fc->retry_count++; 1298 goto nextnode; 1299 } 1300 1301 if(xfer->send.buf == NULL){ 1302 printf("send.buf == NULL: node=%d addr=0x%x\n", 1303 fc->ongonode, fc->ongoaddr); 1304 printf("send.buf == NULL\n"); 1305 fc->retry_count++; 1306 goto nextnode; 1307 } 1308 sfp = (struct fw_pkt *)xfer->send.buf; 1309 1310 if(xfer->recv.buf == NULL){ 1311 printf("recv.buf == NULL: node=%d addr=0x%x\n", 1312 fc->ongonode, fc->ongoaddr); 1313 fc->retry_count++; 1314 goto nextnode; 1315 } 1316 rfp = (struct fw_pkt *)xfer->recv.buf; 1317#if 0 1318 { 1319 u_int32_t *qld; 1320 int i; 1321 qld = (u_int32_t *)xfer->recv.buf; 1322 printf("len:%d\n", xfer->recv.len); 1323 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1324 printf("0x%08x ", ntohl(rfp->mode.ld[i/4])); 1325 if((i % 16) == 15) printf("\n"); 1326 } 1327 if((i % 16) != 15) printf("\n"); 1328 } 1329#endif 1330 if(fc->ongodev == NULL){ 1331 if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 | CSRROMOFF))){ 1332 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1333 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1334/* If CSR is minimul confinguration, more investgation is not needed. */ 1335 if(chdr->info_len == 1){ 1336 goto nextnode; 1337 }else{ 1338 fc->ongoaddr = CSRROMOFF + 0xc; 1339 } 1340 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0xc)))){ 1341 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1342 fc->ongoaddr = CSRROMOFF + 0x10; 1343 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0x10)))){ 1344 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1345 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) 1346 goto nextnode; 1347 fc->ongoaddr = CSRROMOFF; 1348 } 1349 }else{ 1350 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1351 if(fc->ongoaddr > fc->ongodev->rommax){ 1352 fc->ongodev->rommax = fc->ongoaddr; 1353 } 1354 csrd = SLIST_FIRST(&fc->ongocsr); 1355 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1356 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1357 offset = CSRROMOFF; 1358 }else{ 1359 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1360 offset = csrd->off; 1361 } 1362 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1363 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1364 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1365 csrd = SLIST_FIRST(&fc->csrfree); 1366 if(csrd == NULL){ 1367 goto nextnode; 1368 }else{ 1369 csrd->ongoaddr = fc->ongoaddr; 1370 fc->ongoaddr += csrreg->val * 4; 1371 csrd->off = fc->ongoaddr; 1372 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1373 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1374 goto nextaddr; 1375 } 1376 } 1377 } 1378 fc->ongoaddr += 4; 1379 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1380 (fc->ongodev->rommax < 0x414)){ 1381 if(fc->ongodev->rommax <= 0x414){ 1382 csrd = SLIST_FIRST(&fc->csrfree); 1383 if(csrd == NULL) goto nextnode; 1384 csrd->off = fc->ongoaddr; 1385 csrd->ongoaddr = fc->ongoaddr; 1386 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1387 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1388 } 1389 goto nextaddr; 1390 } 1391 1392 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1393 if(csrd == NULL){ 1394 goto nextnode; 1395 }; 1396 fc->ongoaddr = csrd->ongoaddr + 4; 1397 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1398 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1399 csrd = SLIST_FIRST(&fc->ongocsr); 1400 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1401 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1402 offset = CSRROMOFF; 1403 }else{ 1404 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1405 offset = csrd->off; 1406 } 1407 } 1408 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1409 goto nextnode; 1410 } 1411 } 1412nextaddr: 1413 fw_xfer_free( xfer); 1414 fw_bus_explore(fc); 1415 return; 1416nextnode: 1417 fw_xfer_free( xfer); 1418 fc->ongonode++; 1419/* housekeeping work space */ 1420 fc->ongoaddr = CSRROMOFF; 1421 fc->ongodev = NULL; 1422 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1423 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1424 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1425 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1426 } 1427 fw_bus_explore(fc); 1428 return; 1429} 1430 1431/* 1432 * To obtain CSR register values. 1433 */ 1434u_int32_t 1435getcsrdata(struct fw_device *fwdev, u_int8_t key) 1436{ 1437 int i; 1438 struct csrhdr *chdr; 1439 struct csrreg *creg; 1440 chdr = (struct csrhdr *)&fwdev->csrrom[0]; 1441 for( i = chdr->info_len + 4; i <= fwdev->rommax - CSRROMOFF; i+=4){ 1442 creg = (struct csrreg *)&fwdev->csrrom[i/4]; 1443 if(creg->key == key){ 1444 return (u_int32_t)creg->val; 1445 } 1446 } 1447 return 0; 1448} 1449 1450/* 1451 * To attach sub-devices layer onto IEEE1394 bus. 1452 */ 1453static void 1454fw_attach_dev(struct firewire_comm *fc) 1455{ 1456 struct fw_device *fwdev; 1457 struct fw_xfer *xfer; 1458 int i, err; 1459 device_t *devlistp; 1460 int devcnt; 1461 struct firewire_dev_comm *fdc; 1462 u_int32_t spec, ver; 1463 1464 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 1465 fwdev = TAILQ_NEXT(fwdev, link)){ 1466 if(fwdev->status == FWDEVINIT){ 1467 spec = getcsrdata(fwdev, CSRKEY_SPEC); 1468 if(spec == 0) 1469 continue; 1470 ver = getcsrdata(fwdev, CSRKEY_VER); 1471 if(ver == 0) 1472 continue; 1473 fwdev->maxrec = (fwdev->csrrom[2] >> 12) & 0xf; 1474 1475 device_printf(fc->bdev, "Device "); 1476 switch(spec){ 1477 case CSRVAL_ANSIT10: 1478 switch(ver){ 1479 case CSRVAL_T10SBP2: 1480 printf("SBP-II"); 1481 break; 1482 default: 1483 break; 1484 } 1485 break; 1486 case CSRVAL_1394TA: 1487 switch(ver){ 1488 case CSR_PROTAVC: 1489 printf("AV/C"); 1490 break; 1491 case CSR_PROTCAL: 1492 printf("CAL"); 1493 break; 1494 case CSR_PROTEHS: 1495 printf("EHS"); 1496 break; 1497 case CSR_PROTHAVI: 1498 printf("HAVi"); 1499 break; 1500 case CSR_PROTCAM104: 1501 printf("1394 Cam 1.04"); 1502 break; 1503 case CSR_PROTCAM120: 1504 printf("1394 Cam 1.20"); 1505 break; 1506 case CSR_PROTCAM130: 1507 printf("1394 Cam 1.30"); 1508 break; 1509 case CSR_PROTDPP: 1510 printf("1394 Direct print"); 1511 break; 1512 case CSR_PROTIICP: 1513 printf("Industrial & Instrument"); 1514 break; 1515 default: 1516 printf("unknown 1394TA"); 1517 break; 1518 } 1519 break; 1520 default: 1521 printf("unknown spec"); 1522 break; 1523 } 1524 fwdev->status = FWDEVATTACHED; 1525 printf("\n"); 1526 } 1527 } 1528 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1529 if( err != 0 ) 1530 return; 1531 for( i = 0 ; i < devcnt ; i++){ 1532 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1533 fdc = device_get_softc(devlistp[i]); 1534 if (fdc->post_explore != NULL) 1535 fdc->post_explore(fdc); 1536 } 1537 } 1538 free(devlistp, M_TEMP); 1539 1540 /* call pending handlers */ 1541 i = 0; 1542 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1543 STAILQ_REMOVE_HEAD(&fc->pending, link); 1544 i++; 1545 if (xfer->act.hand) 1546 xfer->act.hand(xfer); 1547 } 1548 if (i > 0) 1549 printf("fw_attach_dev: %d pending handlers called\n", i); 1550 if (fc->retry_count > 0) { 1551 printf("retry_count = %d\n", fc->retry_count); 1552 fc->retry_probe_handle = timeout((timeout_t *)fc->ibr, 1553 (void *)fc, hz*2); 1554 } 1555 return; 1556} 1557 1558/* 1559 * To allocate uniq transaction label. 1560 */ 1561static int 1562fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1563{ 1564 u_int i; 1565 struct tlabel *tl, *tmptl; 1566 int s; 1567 static u_int32_t label = 0; 1568 1569 s = splfw(); 1570 for( i = 0 ; i < 0x40 ; i ++){ 1571 label = (label + 1) & 0x3f; 1572 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1573 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1574 if(tmptl->xfer->dst == xfer->dst) break; 1575 } 1576 if(tmptl == NULL) { 1577 tl = malloc(sizeof(struct tlabel),M_DEVBUF,M_NOWAIT); 1578 if (tl == NULL) { 1579 splx(s); 1580 return (-1); 1581 } 1582 tl->xfer = xfer; 1583 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1584 splx(s); 1585 return(label); 1586 } 1587 } 1588 splx(s); 1589 1590 printf("fw_get_tlabel: no free tlabel\n"); 1591 return(-1); 1592} 1593 1594/* 1595 * Generic packet receving process. 1596 */ 1597void 1598fw_rcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int sub, u_int off, u_int spd) 1599{ 1600 struct fw_pkt *fp, *resfp; 1601 struct fw_xfer *xfer; 1602 struct fw_bind *bind; 1603 struct firewire_softc *sc; 1604 int s; 1605#if 0 1606 { 1607 u_int32_t *qld; 1608 int i; 1609 qld = (u_int32_t *)buf; 1610 printf("spd %d len:%d\n", spd, len); 1611 for( i = 0 ; i <= len && i < 32; i+= 4){ 1612 printf("0x%08x ", ntohl(qld[i/4])); 1613 if((i % 16) == 15) printf("\n"); 1614 } 1615 if((i % 16) != 15) printf("\n"); 1616 } 1617#endif 1618 fp = (struct fw_pkt *)(buf + off); 1619 switch(fp->mode.common.tcode){ 1620 case FWTCODE_WRES: 1621 case FWTCODE_RRESQ: 1622 case FWTCODE_RRESB: 1623 case FWTCODE_LRES: 1624 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1625 fp->mode.hdr.tlrt >> 2); 1626 if(xfer == NULL) { 1627 printf("fw_rcv: unknown response " 1628 "tcode=%d src=0x%x tl=%x rt=%d data=0x%x\n", 1629 fp->mode.common.tcode, 1630 ntohs(fp->mode.hdr.src), 1631 fp->mode.hdr.tlrt >> 2, 1632 fp->mode.hdr.tlrt & 3, 1633 fp->mode.rresq.data); 1634#if 1 1635 printf("try ad-hoc work around!!\n"); 1636 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1637 (fp->mode.hdr.tlrt >> 2)^3); 1638 if (xfer == NULL) { 1639 printf("no use...\n"); 1640 goto err; 1641 } 1642#else 1643 goto err; 1644#endif 1645 } 1646 switch(xfer->act_type){ 1647 case FWACT_XFER: 1648 if((xfer->sub >= 0) && 1649 ((fc->ir[xfer->sub]->flag & FWXFERQ_MODEMASK ) == 0)){ 1650 xfer->resp = EINVAL; 1651 fw_xfer_done(xfer); 1652 goto err; 1653 } 1654 xfer->recv.len = len; 1655 xfer->recv.off = off; 1656 xfer->recv.buf = buf; 1657 xfer->resp = 0; 1658 fw_xfer_done(xfer); 1659 return; 1660 break; 1661 case FWACT_CH: 1662 default: 1663 goto err; 1664 break; 1665 } 1666 break; 1667 case FWTCODE_WREQQ: 1668 case FWTCODE_WREQB: 1669 case FWTCODE_RREQQ: 1670 case FWTCODE_RREQB: 1671 case FWTCODE_LREQ: 1672 bind = fw_bindlookup(fc, ntohs(fp->mode.rreqq.dest_hi), 1673 ntohl(fp->mode.rreqq.dest_lo)); 1674 if(bind == NULL){ 1675#if __FreeBSD_version >= 500000 1676 printf("Unknown service addr 0x%08x:0x%08x tcode=%x\n", 1677#else 1678 printf("Unknown service addr 0x%08x:0x%08lx tcode=%x\n", 1679#endif 1680 ntohs(fp->mode.rreqq.dest_hi), 1681 ntohl(fp->mode.rreqq.dest_lo), 1682 fp->mode.common.tcode); 1683 if (fc->status == FWBUSRESET) { 1684 printf("fw_rcv: cannot response(bus reset)!\n"); 1685 goto err; 1686 } 1687 xfer = fw_xfer_alloc(); 1688 if(xfer == NULL){ 1689 return; 1690 } 1691 xfer->spd = spd; 1692 xfer->send.buf = malloc(16, M_DEVBUF, M_NOWAIT); 1693 resfp = (struct fw_pkt *)xfer->send.buf; 1694 switch(fp->mode.common.tcode){ 1695 case FWTCODE_WREQQ: 1696 case FWTCODE_WREQB: 1697 resfp->mode.hdr.tcode = FWTCODE_WRES; 1698 xfer->send.len = 12; 1699 break; 1700 case FWTCODE_RREQQ: 1701 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1702 xfer->send.len = 16; 1703 break; 1704 case FWTCODE_RREQB: 1705 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1706 xfer->send.len = 16; 1707 break; 1708 case FWTCODE_LREQ: 1709 resfp->mode.hdr.tcode = FWTCODE_LRES; 1710 xfer->send.len = 16; 1711 break; 1712 } 1713 resfp->mode.hdr.dst = fp->mode.hdr.src; 1714 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1715 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1716 resfp->mode.rresb.rtcode = 7; 1717 resfp->mode.rresb.extcode = 0; 1718 resfp->mode.rresb.len = 0; 1719/* 1720 xfer->act.hand = fw_asy_callback; 1721*/ 1722 xfer->act.hand = fw_xfer_free; 1723 if(fw_asyreq(fc, -1, xfer)){ 1724 fw_xfer_free( xfer); 1725 return; 1726 } 1727 goto err; 1728 } 1729 switch(bind->xfer->act_type){ 1730 case FWACT_XFER: 1731 xfer = fw_xfer_alloc(); 1732 if(xfer == NULL) goto err; 1733 xfer->fc = bind->xfer->fc; 1734 xfer->sc = bind->xfer->sc; 1735 xfer->recv.buf = buf; 1736 xfer->recv.len = len; 1737 xfer->recv.off = off; 1738 xfer->spd = spd; 1739 xfer->act.hand = bind->xfer->act.hand; 1740 if (fc->status != FWBUSRESET) 1741 xfer->act.hand(xfer); 1742 else 1743 STAILQ_INSERT_TAIL(&fc->pending, xfer, link); 1744 return; 1745 break; 1746 case FWACT_CH: 1747 if(fc->ir[bind->xfer->sub]->queued >= 1748 fc->ir[bind->xfer->sub]->maxq){ 1749 device_printf(fc->bdev, 1750 "Discard a packet %x %d\n", 1751 bind->xfer->sub, 1752 fc->ir[bind->xfer->sub]->queued); 1753 goto err; 1754 } 1755 xfer = fw_xfer_alloc(); 1756 if(xfer == NULL) goto err; 1757 xfer->recv.buf = buf; 1758 xfer->recv.len = len; 1759 xfer->recv.off = off; 1760 xfer->spd = spd; 1761 s = splfw(); 1762 fc->ir[bind->xfer->sub]->queued++; 1763 STAILQ_INSERT_TAIL(&fc->ir[bind->xfer->sub]->q, xfer, link); 1764 splx(s); 1765 1766 wakeup((caddr_t)fc->ir[bind->xfer->sub]); 1767 1768 return; 1769 break; 1770 default: 1771 goto err; 1772 break; 1773 } 1774 break; 1775 case FWTCODE_STREAM: 1776 { 1777 struct fw_xferq *xferq; 1778 1779 xferq = fc->ir[sub]; 1780#if 0 1781 printf("stream rcv dma %d len %d off %d spd %d\n", 1782 sub, len, off, spd); 1783#endif 1784 if(xferq->queued >= xferq->maxq) { 1785 printf("receive queue is full\n"); 1786 goto err; 1787 } 1788 xfer = fw_xfer_alloc(); 1789 if(xfer == NULL) goto err; 1790 xfer->recv.buf = buf; 1791 xfer->recv.len = len; 1792 xfer->recv.off = off; 1793 xfer->spd = spd; 1794 s = splfw(); 1795 xferq->queued++; 1796 STAILQ_INSERT_TAIL(&xferq->q, xfer, link); 1797 splx(s); 1798 sc = device_get_softc(fc->bdev); 1799#if __FreeBSD_version >= 500000 1800 if (SEL_WAITING(&xferq->rsel)) 1801#else 1802 if (&xferq->rsel.si_pid != 0) 1803#endif 1804 selwakeup(&xferq->rsel); 1805 if (xferq->flag & FWXFERQ_WAKEUP) { 1806 xferq->flag &= ~FWXFERQ_WAKEUP; 1807 wakeup((caddr_t)xferq); 1808 } 1809 if (xferq->flag & FWXFERQ_HANDLER) { 1810 xferq->hand(xferq); 1811 } 1812 return; 1813 break; 1814 } 1815 default: 1816 printf("fw_rcv: unknow tcode\n"); 1817 break; 1818 } 1819err: 1820 free(buf, M_DEVBUF); 1821} 1822 1823/* 1824 * Post process for Bus Manager election process. 1825 */ 1826static void 1827fw_try_bmr_callback(struct fw_xfer *xfer) 1828{ 1829 struct fw_pkt *rfp; 1830 struct firewire_comm *fc; 1831 int bmr; 1832 1833 if (xfer == NULL) 1834 return; 1835 fc = xfer->fc; 1836 if (xfer->resp != 0) 1837 goto error; 1838 if (xfer->send.buf == NULL) 1839 goto error; 1840 if (xfer->recv.buf == NULL) 1841 goto error; 1842 rfp = (struct fw_pkt *)xfer->recv.buf; 1843 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE) 1844 goto error; 1845 1846 bmr = ntohl(rfp->mode.lres.payload[0]); 1847 if (bmr == 0x3f) 1848 bmr = fc->nodeid; 1849 1850 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 1851 device_printf(fc->bdev, "new bus manager %d ", 1852 CSRARC(fc, BUS_MGR_ID)); 1853 if(bmr == fc->nodeid){ 1854 printf("(me)\n"); 1855/* If I am bus manager, optimize gapcount */ 1856 if(fc->max_hop <= MAX_GAPHOP ){ 1857 fw_phy_config(fc, -1, gap_cnt[fc->max_hop]); 1858 } 1859 }else{ 1860 printf("\n"); 1861 } 1862error: 1863 fw_xfer_free(xfer); 1864} 1865 1866/* 1867 * To candidate Bus Manager election process. 1868 */ 1869void 1870fw_try_bmr(void *arg) 1871{ 1872 struct fw_xfer *xfer; 1873 struct firewire_comm *fc = (struct firewire_comm *)arg; 1874 struct fw_pkt *fp; 1875 int err = 0; 1876 1877 xfer = fw_xfer_alloc(); 1878 if(xfer == NULL){ 1879 return; 1880 } 1881 xfer->send.len = 24; 1882 xfer->spd = 0; 1883 xfer->send.buf = malloc(24, M_DEVBUF, M_NOWAIT); 1884 if(xfer->send.buf == NULL){ 1885 fw_xfer_free( xfer); 1886 return; 1887 } 1888 1889 fc->status = FWBUSMGRELECT; 1890 1891 xfer->send.off = 0; 1892 fp = (struct fw_pkt *)xfer->send.buf; 1893 fp->mode.lreq.dest_hi = htons(0xffff); 1894 fp->mode.lreq.tlrt = 0; 1895 fp->mode.lreq.tcode = FWTCODE_LREQ; 1896 fp->mode.lreq.pri = 0; 1897 fp->mode.lreq.src = 0; 1898 fp->mode.lreq.len = htons(8); 1899 fp->mode.lreq.extcode = htons(FW_LREQ_CMPSWAP); 1900 xfer->dst = FWLOCALBUS | fc->irm; 1901 fp->mode.lreq.dst = htons(xfer->dst); 1902 fp->mode.lreq.dest_lo = htonl(0xf0000000 | BUS_MGR_ID); 1903 fp->mode.lreq.payload[0] = htonl(0x3f); 1904 fp->mode.lreq.payload[1] = htonl(fc->nodeid); 1905 xfer->act_type = FWACT_XFER; 1906 xfer->act.hand = fw_try_bmr_callback; 1907 1908 err = fw_asyreq(fc, -1, xfer); 1909 if(err){ 1910 fw_xfer_free( xfer); 1911 return; 1912 } 1913 return; 1914} 1915 1916#ifdef FW_VMACCESS 1917/* 1918 * Software implementation for physical memory block access. 1919 * XXX:Too slow, usef for debug purpose only. 1920 */ 1921static void 1922fw_vmaccess(struct fw_xfer *xfer){ 1923 struct fw_pkt *rfp, *sfp = NULL; 1924 u_int32_t *ld = (u_int32_t *)(xfer->recv.buf + xfer->recv.off); 1925 1926 printf("vmaccess spd:%2x len:%03x %d data:%08x %08x %08x %08x\n", 1927 xfer->spd, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1928 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1929 if(xfer->resp != 0){ 1930 fw_xfer_free( xfer); 1931 return; 1932 } 1933 if(xfer->recv.buf == NULL){ 1934 fw_xfer_free( xfer); 1935 return; 1936 } 1937 rfp = (struct fw_pkt *)xfer->recv.buf; 1938 switch(rfp->mode.hdr.tcode){ 1939 /* XXX need fix for 64bit arch */ 1940 case FWTCODE_WREQB: 1941 xfer->send.buf = malloc(12, M_DEVBUF, M_NOWAIT); 1942 xfer->send.len = 12; 1943 sfp = (struct fw_pkt *)xfer->send.buf; 1944 bcopy(rfp->mode.wreqb.payload, 1945 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 1946 sfp->mode.wres.tcode = FWTCODE_WRES; 1947 sfp->mode.wres.rtcode = 0; 1948 break; 1949 case FWTCODE_WREQQ: 1950 xfer->send.buf = malloc(12, M_DEVBUF, M_NOWAIT); 1951 xfer->send.len = 12; 1952 sfp->mode.wres.tcode = FWTCODE_WRES; 1953 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 1954 sfp->mode.wres.rtcode = 0; 1955 break; 1956 case FWTCODE_RREQB: 1957 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_DEVBUF, M_NOWAIT); 1958 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 1959 sfp = (struct fw_pkt *)xfer->send.buf; 1960 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 1961 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 1962 sfp->mode.rresb.tcode = FWTCODE_RRESB; 1963 sfp->mode.rresb.len = rfp->mode.rreqb.len; 1964 sfp->mode.rresb.rtcode = 0; 1965 sfp->mode.rresb.extcode = 0; 1966 break; 1967 case FWTCODE_RREQQ: 1968 xfer->send.buf = malloc(16, M_DEVBUF, M_NOWAIT); 1969 xfer->send.len = 16; 1970 sfp = (struct fw_pkt *)xfer->send.buf; 1971 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 1972 sfp->mode.wres.tcode = FWTCODE_RRESQ; 1973 sfp->mode.rresb.rtcode = 0; 1974 break; 1975 default: 1976 fw_xfer_free( xfer); 1977 return; 1978 } 1979 xfer->send.off = 0; 1980 sfp->mode.hdr.dst = rfp->mode.hdr.src; 1981 xfer->dst = ntohs(rfp->mode.hdr.src); 1982 xfer->act.hand = fw_xfer_free; 1983 xfer->retry_req = fw_asybusy; 1984 1985 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 1986 sfp->mode.hdr.pri = 0; 1987 1988 fw_asyreq(xfer->fc, -1, xfer); 1989/**/ 1990 return; 1991} 1992#endif 1993 1994/* 1995 * CRC16 check-sum for IEEE1394 register blocks. 1996 */ 1997u_int16_t 1998fw_crc16(u_int32_t *ptr, u_int32_t len){ 1999 u_int32_t i, sum, crc = 0; 2000 int shift; 2001 len = (len + 3) & ~3; 2002 for(i = 0 ; i < len ; i+= 4){ 2003 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2004 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2005 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2006 } 2007 crc &= 0xffff; 2008 } 2009 return((u_int16_t) crc); 2010} 2011 2012DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); 2013MODULE_VERSION(firewire, 1); 2014