firewire.c revision 110179
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 110179 2003-02-01 06:34:36Z 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/fwmem.h> 58#include <dev/firewire/iec13213.h> 59#include <dev/firewire/iec68113.h> 60 61int firewire_debug=0, try_bmr=1; 62SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 63 "FireWire driver debug flag"); 64SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 65SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 66 "Try to be a bus manager"); 67 68#define FW_MAXASYRTY 4 69#define FW_MAXDEVRCNT 4 70 71#define XFER_TIMEOUT 0 72 73devclass_t firewire_devclass; 74 75static int firewire_match __P((device_t)); 76static int firewire_attach __P((device_t)); 77static int firewire_detach __P((device_t)); 78#if 0 79static int firewire_shutdown __P((device_t)); 80#endif 81static device_t firewire_add_child __P((device_t, int, const char *, int)); 82static void fw_try_bmr __P((void *)); 83static void fw_try_bmr_callback __P((struct fw_xfer *)); 84static void fw_asystart __P((struct fw_xfer *)); 85static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *)); 86static void fw_bus_probe __P((struct firewire_comm *)); 87static void fw_bus_explore __P((struct firewire_comm *)); 88static void fw_bus_explore_callback __P((struct fw_xfer *)); 89static void fw_attach_dev __P((struct firewire_comm *)); 90#ifdef FW_VMACCESS 91static void fw_vmaccess __P((struct fw_xfer *)); 92#endif 93struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 94 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *)))); 95static int fw_bmr __P((struct firewire_comm *)); 96 97static device_method_t firewire_methods[] = { 98 /* Device interface */ 99 DEVMETHOD(device_probe, firewire_match), 100 DEVMETHOD(device_attach, firewire_attach), 101 DEVMETHOD(device_detach, firewire_detach), 102 DEVMETHOD(device_suspend, bus_generic_suspend), 103 DEVMETHOD(device_resume, bus_generic_resume), 104 DEVMETHOD(device_shutdown, bus_generic_shutdown), 105 106 /* Bus interface */ 107 DEVMETHOD(bus_add_child, firewire_add_child), 108 DEVMETHOD(bus_print_child, bus_generic_print_child), 109 110 { 0, 0 } 111}; 112char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"}; 113 114#define MAX_GAPHOP 16 115u_int gap_cnt[] = {1, 1, 4, 6, 9, 12, 14, 17, 116 20, 23, 25, 28, 31, 33, 36, 39, 42}; 117 118extern struct cdevsw firewire_cdevsw; 119 120static driver_t firewire_driver = { 121 "firewire", 122 firewire_methods, 123 sizeof(struct firewire_softc), 124}; 125 126/* 127 * Lookup fwdev by node id. 128 */ 129struct fw_device * 130fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 131{ 132 struct fw_device *fwdev; 133 int s; 134 135 s = splfw(); 136 TAILQ_FOREACH(fwdev, &fc->devices, link) 137 if (fwdev->dst == dst) 138 break; 139 splx(s); 140 141 if(fwdev == NULL) return NULL; 142 if(fwdev->status == FWDEVINVAL) return NULL; 143 return fwdev; 144} 145 146/* 147 * Lookup fwdev by EUI64. 148 */ 149struct fw_device * 150fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 eui) 151{ 152 struct fw_device *fwdev; 153 int s; 154 155 s = splfw(); 156 TAILQ_FOREACH(fwdev, &fc->devices, link) 157 if (fwdev->eui.hi == eui.hi && fwdev->eui.lo == eui.lo) 158 break; 159 splx(s); 160 161 if(fwdev == NULL) return NULL; 162 if(fwdev->status == FWDEVINVAL) return NULL; 163 return fwdev; 164} 165 166/* 167 * Async. request procedure for userland application. 168 */ 169int 170fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 171{ 172 int err = 0; 173 struct fw_xferq *xferq; 174 int tl = 0, len; 175 struct fw_pkt *fp; 176 int tcode; 177 struct tcode_info *info; 178 179 if(xfer == NULL) return EINVAL; 180 if(xfer->send.len > MAXREC(fc->maxrec)){ 181 printf("send.len > maxrec\n"); 182 return EINVAL; 183 } 184 if(xfer->act.hand == NULL){ 185 printf("act.hand == NULL\n"); 186 return EINVAL; 187 } 188 fp = (struct fw_pkt *)xfer->send.buf; 189 190 tcode = fp->mode.common.tcode & 0xf; 191 info = &fc->tcode[tcode]; 192 if (info->flag == 0) { 193 printf("invalid tcode=%d\n", tcode); 194 return EINVAL; 195 } 196 if (info->flag & FWTI_REQ) 197 xferq = fc->atq; 198 else 199 xferq = fc->ats; 200 len = info->hdr_len; 201 if (info->flag & FWTI_BLOCK_STR) 202 len += ntohs(fp->mode.stream.len); 203 else if (info->flag & FWTI_BLOCK_ASY) 204 len += ntohs(fp->mode.rresb.len); 205 if( len > xfer->send.len ){ 206 printf("len(%d) > send.len(%d) (tcode=%d)\n", 207 len, xfer->send.len, tcode); 208 return EINVAL; 209 } 210 xfer->send.len = len; 211 212 if(xferq->start == NULL){ 213 printf("xferq->start == NULL\n"); 214 return EINVAL; 215 } 216 if(!(xferq->queued < xferq->maxq)){ 217 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 218 xferq->queued); 219 return EINVAL; 220 } 221 222 223 if (info->flag & FWTI_TLABEL) { 224 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 225 return EIO; 226 fp->mode.hdr.tlrt = tl << 2; 227 } 228 229 xfer->tl = tl; 230 xfer->tcode = tcode; 231 xfer->resp = 0; 232 xfer->fc = fc; 233 xfer->q = xferq; 234 xfer->act_type = FWACT_XFER; 235 xfer->retry_req = fw_asybusy; 236 237 fw_asystart(xfer); 238 return err; 239} 240/* 241 * Wakeup blocked process. 242 */ 243void 244fw_asy_callback(struct fw_xfer *xfer){ 245 wakeup(xfer); 246 return; 247} 248/* 249 * Postpone to later retry. 250 */ 251void fw_asybusy(struct fw_xfer *xfer){ 252#if 1 253 printf("fw_asybusy\n"); 254#endif 255#if XFER_TIMEOUT 256 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 257#endif 258/* 259 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 260*/ 261 DELAY(20000); 262 fw_asystart(xfer); 263 return; 264} 265#if XFER_TIMEOUT 266/* 267 * Post timeout for async. request. 268 */ 269void 270fw_xfer_timeout(void *arg) 271{ 272 int s; 273 struct fw_xfer *xfer; 274 275 xfer = (struct fw_xfer *)arg; 276 printf("fw_xfer_timeout status=%d resp=%d\n", xfer->state, xfer->resp); 277 /* XXX set error code */ 278 s = splfw(); 279 xfer->act.hand(xfer); 280 splx(s); 281} 282#endif 283/* 284 * Async. request with given xfer structure. 285 */ 286static void 287fw_asystart(struct fw_xfer *xfer) 288{ 289 struct firewire_comm *fc = xfer->fc; 290 int s; 291 if(xfer->retry++ >= fc->max_asyretry){ 292 xfer->resp = EBUSY; 293 xfer->state = FWXF_BUSY; 294 xfer->act.hand(xfer); 295 return; 296 } 297#if 0 /* XXX allow bus explore packets only after bus rest */ 298 if (fc->status < FWBUSEXPLORE) { 299 xfer->resp = EAGAIN; 300 xfer->state = FWXF_BUSY; 301 if (xfer->act.hand != NULL) 302 xfer->act.hand(xfer); 303 return; 304 } 305#endif 306 s = splfw(); 307 xfer->state = FWXF_INQ; 308 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 309 xfer->q->queued ++; 310 splx(s); 311 /* XXX just queue for mbuf */ 312 if (xfer->mbuf == NULL) 313 xfer->q->start(fc); 314#if XFER_TIMEOUT 315 if (xfer->act.hand != NULL) 316 xfer->ch = timeout(fw_xfer_timeout, (void *)xfer, hz); 317#endif 318 return; 319} 320 321static int 322firewire_match( device_t dev ) 323{ 324 device_set_desc(dev, "IEEE1394(FireWire) bus"); 325 return -140; 326} 327 328/* 329 * The attach routine. 330 */ 331static int 332firewire_attach( device_t dev ) 333{ 334 int i, unitmask, mn; 335 struct firewire_softc *sc = device_get_softc(dev); 336 device_t pa = device_get_parent(dev); 337 struct firewire_comm *fc; 338 dev_t d; 339 340 fc = (struct firewire_comm *)device_get_softc(pa); 341 sc->fc = fc; 342 343 unitmask = UNIT2MIN(device_get_unit(dev)); 344 345 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 346 for ( i = 0 ; i < fc->nisodma ; i++ ){ 347 mn = unitmask | i; 348 /* XXX device name should be improved */ 349 d = make_dev(&firewire_cdevsw, unit2minor(mn), 350 UID_ROOT, GID_OPERATOR, 0660, 351 "fw%x", mn); 352#if __FreeBSD_version >= 500000 353 if (i == 0) 354 sc->dev = d; 355 else 356 dev_depends(sc->dev, d); 357#else 358 sc->dev[i] = d; 359#endif 360 } 361 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG), 362 UID_ROOT, GID_OPERATOR, 0660, 363 "fwmem%d", device_get_unit(dev)); 364#if __FreeBSD_version >= 500000 365 dev_depends(sc->dev, d); 366#else 367 sc->dev[i] = d; 368#endif 369 sc->fc->timeouthandle = timeout((timeout_t *)sc->fc->timeout, (void *)sc->fc, hz * 10); 370 371 callout_init(&sc->fc->busprobe_callout 372#if __FreeBSD_version >= 500000 373 , /* mpsafe? */ 0); 374#else 375 ); 376#endif 377 378 /* Locate our children */ 379 bus_generic_probe(dev); 380 381 /* launch attachement of the added children */ 382 bus_generic_attach(dev); 383 384 /* bus_reset */ 385 fc->ibr(fc); 386 387 return 0; 388} 389 390/* 391 * Attach it as child. 392 */ 393static device_t 394firewire_add_child(device_t dev, int order, const char *name, int unit) 395{ 396 device_t child; 397 struct firewire_softc *sc; 398 399 sc = (struct firewire_softc *)device_get_softc(dev); 400 child = device_add_child(dev, name, unit); 401 if (child) { 402 device_set_ivars(child, sc->fc); 403 device_probe_and_attach(child); 404 } 405 406 return child; 407} 408 409/* 410 * Dettach it. 411 */ 412static int 413firewire_detach( device_t dev ) 414{ 415 struct firewire_softc *sc; 416 417 sc = (struct firewire_softc *)device_get_softc(dev); 418 419#if __FreeBSD_version >= 500000 420 destroy_dev(sc->dev); 421#else 422 { 423 int j; 424 for (j = 0 ; j < sc->fc->nisodma + 1; j++) 425 destroy_dev(sc->dev[j]); 426 } 427#endif 428 /* XXX xfree_free and untimeout on all xfers */ 429 untimeout((timeout_t *)sc->fc->timeout, sc->fc, sc->fc->timeouthandle); 430 free(sc->fc->topology_map, M_DEVBUF); 431 free(sc->fc->speed_map, M_DEVBUF); 432 bus_generic_detach(dev); 433 return(0); 434} 435#if 0 436static int 437firewire_shutdown( device_t dev ) 438{ 439 return 0; 440} 441#endif 442 443/* 444 * Called after bus reset. 445 */ 446void 447fw_busreset(struct firewire_comm *fc) 448{ 449 int i; 450 struct fw_xfer *xfer; 451 452 switch(fc->status){ 453 case FWBUSMGRELECT: 454 untimeout((timeout_t *)fw_try_bmr, (void *)fc, fc->bmrhandle); 455 break; 456 default: 457 break; 458 } 459 fc->status = FWBUSRESET; 460/* XXX: discard all queued packet */ 461 while((xfer = STAILQ_FIRST(&fc->atq->q)) != NULL){ 462 STAILQ_REMOVE_HEAD(&fc->atq->q, link); 463 xfer->resp = EAGAIN; 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 while((xfer = STAILQ_FIRST(&fc->ats->q)) != NULL){ 474 STAILQ_REMOVE_HEAD(&fc->ats->q, link); 475 xfer->resp = EAGAIN; 476 switch(xfer->act_type){ 477 case FWACT_XFER: 478 fw_xfer_done(xfer); 479 default: 480 break; 481 } 482 fw_xfer_free( xfer); 483 } 484 for(i = 0; i < fc->nisodma; i++) 485 while((xfer = STAILQ_FIRST(&fc->it[i]->q)) != NULL){ 486 STAILQ_REMOVE_HEAD(&fc->it[i]->q, link); 487 xfer->resp = 0; 488 switch(xfer->act_type){ 489 case FWACT_XFER: 490 fw_xfer_done(xfer); 491 break; 492 default: 493 break; 494 } 495 fw_xfer_free( xfer); 496 } 497 498 CSRARC(fc, STATE_CLEAR) 499 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 500 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 501 CSRARC(fc, NODE_IDS) = 0x3f; 502 503 CSRARC(fc, TOPO_MAP + 8) = 0; 504 fc->irm = -1; 505 506 fc->max_node = -1; 507 508 for(i = 2; i < 0x100/4 - 2 ; i++){ 509 CSRARC(fc, SPED_MAP + i * 4) = 0; 510 } 511 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 512 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 513 CSRARC(fc, RESET_START) = 0; 514 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 515 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 516 CSRARC(fc, CYCLE_TIME) = 0x0; 517 CSRARC(fc, BUS_TIME) = 0x0; 518 CSRARC(fc, BUS_MGR_ID) = 0x3f; 519 CSRARC(fc, BANDWIDTH_AV) = 4915; 520 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 521 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 522 CSRARC(fc, IP_CHANNELS) = (1 << 31); 523 524 CSRARC(fc, CONF_ROM) = 0x04 << 24; 525 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 526 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 527 1 << 28 | 0xff << 16 | 0x09 << 8; 528 CSRARC(fc, CONF_ROM + 0xc) = 0; 529 530/* DV depend CSRs see blue book */ 531 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 532 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 533 534 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 535 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 536} 537 538/* Call once after reboot */ 539void fw_init(struct firewire_comm *fc) 540{ 541 int i; 542 struct csrdir *csrd; 543#ifdef FW_VMACCESS 544 struct fw_xfer *xfer; 545 struct fw_bind *fwb; 546#endif 547 548 fc->max_asyretry = FW_MAXASYRTY; 549 550 fc->arq->queued = 0; 551 fc->ars->queued = 0; 552 fc->atq->queued = 0; 553 fc->ats->queued = 0; 554 555 fc->arq->psize = PAGE_SIZE; 556 fc->ars->psize = PAGE_SIZE; 557 fc->atq->psize = 0; 558 fc->ats->psize = 0; 559 560 561 fc->arq->buf = NULL; 562 fc->ars->buf = NULL; 563 fc->atq->buf = NULL; 564 fc->ats->buf = NULL; 565 566 fc->arq->flag = FWXFERQ_PACKET; 567 fc->ars->flag = FWXFERQ_PACKET; 568 fc->atq->flag = FWXFERQ_PACKET; 569 fc->ats->flag = FWXFERQ_PACKET; 570 571 STAILQ_INIT(&fc->atq->q); 572 STAILQ_INIT(&fc->ats->q); 573 574 for( i = 0 ; i < fc->nisodma ; i ++ ){ 575 fc->it[i]->queued = 0; 576 fc->ir[i]->queued = 0; 577 578 fc->it[i]->start = NULL; 579 fc->ir[i]->start = NULL; 580 581 fc->it[i]->buf = NULL; 582 fc->ir[i]->buf = NULL; 583 584 fc->it[i]->flag = FWXFERQ_STREAM; 585 fc->ir[i]->flag = FWXFERQ_STREAM; 586 587 STAILQ_INIT(&fc->it[i]->q); 588 STAILQ_INIT(&fc->ir[i]->q); 589 590 STAILQ_INIT(&fc->it[i]->binds); 591 STAILQ_INIT(&fc->ir[i]->binds); 592 } 593 594 fc->arq->maxq = FWMAXQUEUE; 595 fc->ars->maxq = FWMAXQUEUE; 596 fc->atq->maxq = FWMAXQUEUE; 597 fc->ats->maxq = FWMAXQUEUE; 598 599 for( i = 0 ; i < fc->nisodma ; i++){ 600 fc->ir[i]->maxq = FWMAXQUEUE; 601 fc->it[i]->maxq = FWMAXQUEUE; 602 } 603/* Initialize csr registers */ 604 fc->topology_map = (struct fw_topology_map *)malloc( 605 sizeof(struct fw_topology_map), 606 M_DEVBUF, M_NOWAIT | M_ZERO); 607 fc->speed_map = (struct fw_speed_map *)malloc( 608 sizeof(struct fw_speed_map), 609 M_DEVBUF, M_NOWAIT | M_ZERO); 610 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 611 CSRARC(fc, TOPO_MAP + 4) = 1; 612 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 613 CSRARC(fc, SPED_MAP + 4) = 1; 614 615 TAILQ_INIT(&fc->devices); 616 STAILQ_INIT(&fc->pending); 617 618/* Initialize csr ROM work space */ 619 SLIST_INIT(&fc->ongocsr); 620 SLIST_INIT(&fc->csrfree); 621 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 622 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_DEVBUF,M_NOWAIT); 623 if(csrd == NULL) break; 624 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 625 } 626 627/* Initialize Async handlers */ 628 STAILQ_INIT(&fc->binds); 629 for( i = 0 ; i < 0x40 ; i++){ 630 STAILQ_INIT(&fc->tlabels[i]); 631 } 632 633/* DV depend CSRs see blue book */ 634#if 0 635 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 636 CSRARC(fc, oPCR) = 0x8000007a; 637 for(i = 4 ; i < 0x7c/4 ; i+=4){ 638 CSRARC(fc, i + oPCR) = 0x8000007a; 639 } 640 641 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 642 CSRARC(fc, iPCR) = 0x803f0000; 643 for(i = 4 ; i < 0x7c/4 ; i+=4){ 644 CSRARC(fc, i + iPCR) = 0x0; 645 } 646#endif 647 648 649#ifdef FW_VMACCESS 650 xfer = fw_xfer_alloc(); 651 if(xfer == NULL) return; 652 653 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_DEVBUF, M_NOWAIT); 654 if(fwb == NULL){ 655 fw_xfer_free(xfer); 656 } 657 xfer->act.hand = fw_vmaccess; 658 xfer->act_type = FWACT_XFER; 659 xfer->fc = fc; 660 xfer->sc = NULL; 661 662 fwb->start_hi = 0x2; 663 fwb->start_lo = 0; 664 fwb->addrlen = 0xffffffff; 665 fwb->xfer = xfer; 666 fw_bindadd(fc, fwb); 667#endif 668} 669 670/* 671 * To lookup binded process from IEEE1394 address. 672 */ 673struct fw_bind * 674fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 675{ 676 struct fw_bind *tfw; 677 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 678 tfw = STAILQ_NEXT(tfw, fclist)){ 679 if(tfw->xfer->act_type != FWACT_NULL && 680 tfw->start_hi == dest_hi && 681 tfw->start_lo <= dest_lo && 682 (tfw->start_lo + tfw->addrlen) > dest_lo){ 683 return(tfw); 684 } 685 } 686 return(NULL); 687} 688 689/* 690 * To bind IEEE1394 address block to process. 691 */ 692int 693fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 694{ 695 struct fw_bind *tfw, *tfw2 = NULL; 696 int err = 0; 697 tfw = STAILQ_FIRST(&fc->binds); 698 if(tfw == NULL){ 699 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 700 goto out; 701 } 702 if((tfw->start_hi > fwb->start_hi) || 703 (tfw->start_hi == fwb->start_hi && 704 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 705 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 706 goto out; 707 } 708 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 709 if((tfw->start_hi < fwb->start_hi) || 710 (tfw->start_hi == fwb->start_hi && 711 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 712 tfw2 = STAILQ_NEXT(tfw, fclist); 713 if(tfw2 == NULL) 714 break; 715 if((tfw2->start_hi > fwb->start_hi) || 716 (tfw2->start_hi == fwb->start_hi && 717 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 718 break; 719 }else{ 720 err = EBUSY; 721 goto out; 722 } 723 } 724 } 725 if(tfw != NULL){ 726 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 727 }else{ 728 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 729 } 730out: 731 if(!err && fwb->xfer->act_type == FWACT_CH){ 732 STAILQ_INSERT_HEAD(&fc->ir[fwb->xfer->sub]->binds, fwb, chlist); 733 } 734 return err; 735} 736 737/* 738 * To free IEEE1394 address block. 739 */ 740int 741fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 742{ 743 int s; 744 745 s = splfw(); 746 /* shall we check the existance? */ 747 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 748 splx(s); 749 if (fwb->xfer) 750 fw_xfer_free(fwb->xfer); 751 752 return 0; 753} 754 755/* 756 * To free transaction label. 757 */ 758static void 759fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 760{ 761 struct tlabel *tl; 762 int s = splfw(); 763 764 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 765 tl = STAILQ_NEXT(tl, link)){ 766 if(tl->xfer == xfer){ 767 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 768 free(tl, M_DEVBUF); 769 splx(s); 770 return; 771 } 772 } 773 splx(s); 774 return; 775} 776 777/* 778 * To obtain XFER structure by transaction label. 779 */ 780static struct fw_xfer * 781fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 782{ 783 struct fw_xfer *xfer; 784 struct tlabel *tl; 785 int s = splfw(); 786 787 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 788 tl = STAILQ_NEXT(tl, link)){ 789 if(tl->xfer->dst == node){ 790 xfer = tl->xfer; 791 splx(s); 792 return(xfer); 793 } 794 } 795 splx(s); 796 return(NULL); 797} 798 799/* 800 * To allocate IEEE1394 XFER structure. 801 */ 802struct fw_xfer * 803fw_xfer_alloc() 804{ 805 struct fw_xfer *xfer; 806 807 xfer = malloc(sizeof(struct fw_xfer), M_DEVBUF, M_NOWAIT | M_ZERO); 808 if (xfer == NULL) 809 return xfer; 810 811 xfer->time = time_second; 812 xfer->sub = -1; 813 814 return xfer; 815} 816 817/* 818 * IEEE1394 XFER post process. 819 */ 820void 821fw_xfer_done(struct fw_xfer *xfer) 822{ 823 if (xfer->act.hand == NULL) 824 return; 825 826#if XFER_TIMEOUT 827 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 828#endif 829 830 if (xfer->fc->status != FWBUSRESET) 831 xfer->act.hand(xfer); 832 else { 833 printf("fw_xfer_done: pending\n"); 834 if (xfer->fc != NULL) 835 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 836 else 837 panic("fw_xfer_done: why xfer->fc is NULL?"); 838 } 839} 840 841/* 842 * To free IEEE1394 XFER structure. 843 */ 844void 845fw_xfer_free( struct fw_xfer* xfer) 846{ 847 int s; 848 if(xfer == NULL ) return; 849 if(xfer->state == FWXF_INQ){ 850 printf("fw_xfer_free FWXF_INQ\n"); 851 s = splfw(); 852 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 853 xfer->q->queued --; 854 splx(s); 855 } 856 if(xfer->fc != NULL){ 857 if(xfer->state == FWXF_START){ 858#if 0 /* this could happen if we call fwohci_arcv() before fwohci_txd() */ 859 printf("fw_xfer_free FWXF_START\n"); 860#endif 861 s = splfw(); 862 xfer->q->drain(xfer->fc, xfer); 863 splx(s); 864 } 865 } 866 if(xfer->send.buf != NULL){ 867 free(xfer->send.buf, M_DEVBUF); 868 } 869 if(xfer->recv.buf != NULL){ 870 free(xfer->recv.buf, M_DEVBUF); 871 } 872 if(xfer->fc != NULL){ 873 fw_tl_free(xfer->fc, xfer); 874 } 875 free(xfer, M_DEVBUF); 876} 877 878static void 879fw_asy_callback_free(struct fw_xfer *xfer) 880{ 881#if 0 882 printf("asyreq done state=%d resp=%d\n", 883 xfer->state, xfer->resp); 884#endif 885 fw_xfer_free(xfer); 886} 887 888/* 889 * To configure PHY. 890 */ 891static void 892fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 893{ 894 struct fw_xfer *xfer; 895 struct fw_pkt *fp; 896 897 fc->status = FWBUSPHYCONF; 898 899#if 0 900 DELAY(100000); 901#endif 902 xfer = fw_xfer_alloc(); 903 xfer->send.len = 12; 904 xfer->send.off = 0; 905 xfer->fc = fc; 906 xfer->retry_req = fw_asybusy; 907 xfer->act.hand = fw_asy_callback_free; 908 909 xfer->send.buf = malloc(sizeof(u_int32_t), 910 M_DEVBUF, M_NOWAIT | M_ZERO); 911 fp = (struct fw_pkt *)xfer->send.buf; 912 fp->mode.ld[1] = 0; 913 if (root_node >= 0) 914 fp->mode.ld[1] |= htonl((root_node & 0x3f) << 24 | 1 << 23); 915 if (gap_count >= 0) 916 fp->mode.ld[1] |= htonl(1 << 22 | (gap_count & 0x3f) << 16); 917 fp->mode.ld[2] = ~fp->mode.ld[1]; 918/* XXX Dangerous, how to pass PHY packet to device driver */ 919 fp->mode.common.tcode |= FWTCODE_PHY; 920 921 if (firewire_debug) 922 printf("send phy_config root_node=%d gap_count=%d\n", 923 root_node, gap_count); 924 fw_asyreq(fc, -1, xfer); 925} 926 927#if 0 928/* 929 * Dump self ID. 930 */ 931static void 932fw_print_sid(u_int32_t sid) 933{ 934 union fw_self_id *s; 935 s = (union fw_self_id *) &sid; 936 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 937 " p0:%d p1:%d p2:%d i:%d m:%d\n", 938 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 939 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 940 s->p0.power_class, s->p0.port0, s->p0.port1, 941 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 942} 943#endif 944 945/* 946 * To receive self ID. 947 */ 948void fw_sidrcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int off) 949{ 950 u_int32_t *p, *sid = (u_int32_t *)(buf + off); 951 union fw_self_id *self_id; 952 u_int i, j, node, c_port = 0, i_branch = 0; 953 954 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 955 fc->status = FWBUSINIT; 956 fc->max_node = fc->nodeid & 0x3f; 957 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 958 fc->status = FWBUSCYMELECT; 959 fc->topology_map->crc_len = 2; 960 fc->topology_map->generation ++; 961 fc->topology_map->self_id_count = 0; 962 fc->topology_map->node_count = 0; 963 fc->speed_map->generation ++; 964 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 965 self_id = &fc->topology_map->self_id[0]; 966 for(i = 0; i < fc->sid_cnt; i ++){ 967 if (sid[1] != ~sid[0]) { 968 printf("fw_sidrcv: invalid self-id packet\n"); 969 sid += 2; 970 continue; 971 } 972 *self_id = *((union fw_self_id *)sid); 973 fc->topology_map->crc_len++; 974 if(self_id->p0.sequel == 0){ 975 fc->topology_map->node_count ++; 976 c_port = 0; 977#if 0 978 fw_print_sid(sid[0]); 979#endif 980 node = self_id->p0.phy_id; 981 if(fc->max_node < node){ 982 fc->max_node = self_id->p0.phy_id; 983 } 984 /* XXX I'm not sure this is the right speed_map */ 985 fc->speed_map->speed[node][node] 986 = self_id->p0.phy_speed; 987 for (j = 0; j < node; j ++) { 988 fc->speed_map->speed[j][node] 989 = fc->speed_map->speed[node][j] 990 = min(fc->speed_map->speed[j][j], 991 self_id->p0.phy_speed); 992 } 993 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 994 (self_id->p0.link_active && self_id->p0.contender)) { 995 fc->irm = self_id->p0.phy_id; 996 } 997 if(self_id->p0.port0 >= 0x2){ 998 c_port++; 999 } 1000 if(self_id->p0.port1 >= 0x2){ 1001 c_port++; 1002 } 1003 if(self_id->p0.port2 >= 0x2){ 1004 c_port++; 1005 } 1006 } 1007 if(c_port > 2){ 1008 i_branch += (c_port - 2); 1009 } 1010 sid += 2; 1011 self_id++; 1012 fc->topology_map->self_id_count ++; 1013 } 1014 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1015 /* CRC */ 1016 fc->topology_map->crc = fw_crc16( 1017 (u_int32_t *)&fc->topology_map->generation, 1018 fc->topology_map->crc_len * 4); 1019 fc->speed_map->crc = fw_crc16( 1020 (u_int32_t *)&fc->speed_map->generation, 1021 fc->speed_map->crc_len * 4); 1022 /* byteswap and copy to CSR */ 1023 p = (u_int32_t *)fc->topology_map; 1024 for (i = 0; i <= fc->topology_map->crc_len; i++) 1025 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1026 p = (u_int32_t *)fc->speed_map; 1027 CSRARC(fc, SPED_MAP) = htonl(*p++); 1028 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1029 /* don't byte-swap u_int8_t array */ 1030 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1031 1032 fc->max_hop = fc->max_node - i_branch; 1033#if 1 1034 printf(", maxhop <= %d", fc->max_hop); 1035#endif 1036 1037 if(fc->irm == -1 ){ 1038 printf(", Not found IRM capable node"); 1039 }else{ 1040 printf(", cable IRM = %d", fc->irm); 1041 if (fc->irm == fc->nodeid) 1042 printf(" (me)"); 1043 } 1044 printf("\n"); 1045 1046 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1047 if (fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)) { 1048 fc->status = FWBUSMGRDONE; 1049 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1050 } else { 1051 fc->status = FWBUSMGRELECT; 1052 fc->bmrhandle = timeout((timeout_t *)fw_try_bmr, 1053 (void *)fc, hz / 8); 1054 } 1055 } else { 1056 fc->status = FWBUSMGRDONE; 1057#if 0 1058 device_printf(fc->bdev, "BMR = %x\n", 1059 CSRARC(fc, BUS_MGR_ID)); 1060#endif 1061 } 1062 free(buf, M_DEVBUF); 1063 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ 1064 /* I am BMGR */ 1065 fw_bmr(fc); 1066 } 1067 callout_reset(&fc->busprobe_callout, hz/4, 1068 (void *)fw_bus_probe, (void *)fc); 1069} 1070 1071/* 1072 * To probe devices on the IEEE1394 bus. 1073 */ 1074static void 1075fw_bus_probe(struct firewire_comm *fc) 1076{ 1077 int s; 1078 struct fw_device *fwdev, *next; 1079 1080 s = splfw(); 1081 fc->status = FWBUSEXPLORE; 1082 fc->retry_count = 0; 1083 1084/* 1085 * Invalidate all devices, just after bus reset. Devices 1086 * to be removed has not been seen longer time. 1087 */ 1088 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1089 next = TAILQ_NEXT(fwdev, link); 1090 if(fwdev->status != FWDEVINVAL){ 1091 fwdev->status = FWDEVINVAL; 1092 fwdev->rcnt = 0; 1093 }else if(fwdev->rcnt < FW_MAXDEVRCNT){ 1094 fwdev->rcnt ++; 1095 }else{ 1096 TAILQ_REMOVE(&fc->devices, fwdev, link); 1097 free(fwdev, M_DEVBUF); 1098 } 1099 } 1100 fc->ongonode = 0; 1101 fc->ongoaddr = CSRROMOFF; 1102 fc->ongodev = NULL; 1103 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1104 fw_bus_explore(fc); 1105 splx(s); 1106} 1107 1108/* 1109 * To collect device informations on the IEEE1394 bus. 1110 */ 1111static void 1112fw_bus_explore(struct firewire_comm *fc ) 1113{ 1114 int err = 0; 1115 struct fw_device *fwdev, *pfwdev, *tfwdev; 1116 u_int32_t addr; 1117 struct fw_xfer *xfer; 1118 struct fw_pkt *fp; 1119 1120 if(fc->status != FWBUSEXPLORE) 1121 return; 1122 1123loop: 1124 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1125 1126 if(fc->ongonode > fc->max_node) goto done; 1127 if(fc->ongonode >= 0x3f) goto done; 1128 1129 /* check link */ 1130 /* XXX we need to check phy_id first */ 1131 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1132 printf("fw_bus_explore: node %d link down\n", fc->ongonode); 1133 fc->ongonode++; 1134 goto loop; 1135 } 1136 1137 if(fc->ongoaddr <= CSRROMOFF && 1138 fc->ongoeui.hi == 0xffffffff && 1139 fc->ongoeui.lo == 0xffffffff ){ 1140 fc->ongoaddr = CSRROMOFF; 1141 addr = 0xf0000000 | fc->ongoaddr; 1142 }else if(fc->ongoeui.hi == 0xffffffff ){ 1143 fc->ongoaddr = CSRROMOFF + 0xc; 1144 addr = 0xf0000000 | fc->ongoaddr; 1145 }else if(fc->ongoeui.lo == 0xffffffff ){ 1146 fc->ongoaddr = CSRROMOFF + 0x10; 1147 addr = 0xf0000000 | fc->ongoaddr; 1148 }else if(fc->ongodev == NULL){ 1149 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 1150 fwdev = TAILQ_NEXT(fwdev, link)){ 1151 if(fwdev->eui.hi == fc->ongoeui.hi && fwdev->eui.lo == fc->ongoeui.lo){ 1152 break; 1153 } 1154 } 1155 if(fwdev != NULL){ 1156 fwdev->dst = fc->ongonode; 1157 fwdev->status = FWDEVATTACHED; 1158 fc->ongonode++; 1159 fc->ongoaddr = CSRROMOFF; 1160 fc->ongodev = NULL; 1161 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1162 goto loop; 1163 } 1164 fwdev = malloc(sizeof(struct fw_device), M_DEVBUF, M_NOWAIT); 1165 if(fwdev == NULL) 1166 return; 1167 fwdev->fc = fc; 1168 fwdev->rommax = 0; 1169 fwdev->dst = fc->ongonode; 1170 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1171 fwdev->status = FWDEVINIT; 1172#if 0 1173 fwdev->speed = CSRARC(fc, SPED_MAP + 8 + fc->ongonode / 4) 1174 >> ((3 - (fc->ongonode % 4)) * 8); 1175#else 1176 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1177#endif 1178 1179 pfwdev = NULL; 1180 TAILQ_FOREACH(tfwdev, &fc->devices, link) { 1181 if (tfwdev->eui.hi > fwdev->eui.hi || 1182 (tfwdev->eui.hi == fwdev->eui.hi && 1183 tfwdev->eui.lo > fwdev->eui.lo)) 1184 break; 1185 pfwdev = tfwdev; 1186 } 1187 if (pfwdev == NULL) 1188 TAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1189 else 1190 TAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1191 1192 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1193 linkspeed[fwdev->speed], 1194 fc->ongoeui.hi, fc->ongoeui.lo); 1195 1196 fc->ongodev = fwdev; 1197 fc->ongoaddr = CSRROMOFF; 1198 addr = 0xf0000000 | fc->ongoaddr; 1199 }else{ 1200 addr = 0xf0000000 | fc->ongoaddr; 1201 } 1202#if 0 1203 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1204 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1205 fw_bus_explore_callback); 1206 if(xfer == NULL) goto done; 1207#else 1208 xfer = fw_xfer_alloc(); 1209 if(xfer == NULL){ 1210 goto done; 1211 } 1212 xfer->send.len = 16; 1213 xfer->spd = 0; 1214 xfer->send.buf = malloc(16, M_DEVBUF, M_NOWAIT); 1215 if(xfer->send.buf == NULL){ 1216 fw_xfer_free( xfer); 1217 return; 1218 } 1219 1220 xfer->send.off = 0; 1221 fp = (struct fw_pkt *)xfer->send.buf; 1222 fp->mode.rreqq.dest_hi = htons(0xffff); 1223 fp->mode.rreqq.tlrt = 0; 1224 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1225 fp->mode.rreqq.pri = 0; 1226 fp->mode.rreqq.src = 0; 1227 xfer->dst = FWLOCALBUS | fc->ongonode; 1228 fp->mode.rreqq.dst = htons(xfer->dst); 1229 fp->mode.rreqq.dest_lo = htonl(addr); 1230 xfer->act.hand = fw_bus_explore_callback; 1231 1232 err = fw_asyreq(fc, -1, xfer); 1233 if(err){ 1234 fw_xfer_free( xfer); 1235 return; 1236 } 1237#endif 1238 return; 1239done: 1240 /* fw_attach_devs */ 1241 fc->status = FWBUSEXPDONE; 1242 if (firewire_debug) 1243 printf("bus_explore done\n"); 1244 fw_attach_dev(fc); 1245 return; 1246 1247} 1248 1249/* Portable Async. request read quad */ 1250struct fw_xfer * 1251asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1252 u_int32_t addr_hi, u_int32_t addr_lo, 1253 void (*hand) __P((struct fw_xfer*))) 1254{ 1255 struct fw_xfer *xfer; 1256 struct fw_pkt *fp; 1257 int err; 1258 1259 xfer = fw_xfer_alloc(); 1260 if(xfer == NULL){ 1261 return NULL; 1262 } 1263 xfer->send.len = 16; 1264 xfer->spd = spd; /* XXX:min(spd, fc->spd) */ 1265 xfer->send.buf = malloc(16, M_DEVBUF, M_NOWAIT); 1266 if(xfer->send.buf == NULL){ 1267 fw_xfer_free( xfer); 1268 return NULL; 1269 } 1270 1271 xfer->send.off = 0; 1272 fp = (struct fw_pkt *)xfer->send.buf; 1273 fp->mode.rreqq.dest_hi = htons(addr_hi & 0xffff); 1274 if(tl & FWP_TL_VALID){ 1275 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1276 }else{ 1277 fp->mode.rreqq.tlrt = 0; 1278 } 1279 fp->mode.rreqq.tlrt |= rt & 0x3; 1280 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1281 fp->mode.rreqq.pri = 0; 1282 fp->mode.rreqq.src = 0; 1283 xfer->dst = addr_hi >> 16; 1284 fp->mode.rreqq.dst = htons(xfer->dst); 1285 fp->mode.rreqq.dest_lo = htonl(addr_lo); 1286 xfer->act.hand = hand; 1287 1288 err = fw_asyreq(fc, -1, xfer); 1289 if(err){ 1290 fw_xfer_free( xfer); 1291 return NULL; 1292 } 1293 return xfer; 1294} 1295 1296/* 1297 * Callback for the IEEE1394 bus information collection. 1298 */ 1299static void 1300fw_bus_explore_callback(struct fw_xfer *xfer) 1301{ 1302 struct firewire_comm *fc; 1303 struct fw_pkt *sfp,*rfp; 1304 struct csrhdr *chdr; 1305 struct csrdir *csrd; 1306 struct csrreg *csrreg; 1307 u_int32_t offset; 1308 1309 1310 if(xfer == NULL) return; 1311 fc = xfer->fc; 1312 if(xfer->resp != 0){ 1313 printf("resp != 0: node=%d addr=0x%x\n", 1314 fc->ongonode, fc->ongoaddr); 1315 fc->retry_count++; 1316 goto nextnode; 1317 } 1318 1319 if(xfer->send.buf == NULL){ 1320 printf("send.buf == NULL: node=%d addr=0x%x\n", 1321 fc->ongonode, fc->ongoaddr); 1322 printf("send.buf == NULL\n"); 1323 fc->retry_count++; 1324 goto nextnode; 1325 } 1326 sfp = (struct fw_pkt *)xfer->send.buf; 1327 1328 if(xfer->recv.buf == NULL){ 1329 printf("recv.buf == NULL: node=%d addr=0x%x\n", 1330 fc->ongonode, fc->ongoaddr); 1331 fc->retry_count++; 1332 goto nextnode; 1333 } 1334 rfp = (struct fw_pkt *)xfer->recv.buf; 1335#if 0 1336 { 1337 u_int32_t *qld; 1338 int i; 1339 qld = (u_int32_t *)xfer->recv.buf; 1340 printf("len:%d\n", xfer->recv.len); 1341 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1342 printf("0x%08x ", ntohl(rfp->mode.ld[i/4])); 1343 if((i % 16) == 15) printf("\n"); 1344 } 1345 if((i % 16) != 15) printf("\n"); 1346 } 1347#endif 1348 if(fc->ongodev == NULL){ 1349 if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 | CSRROMOFF))){ 1350 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1351 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1352/* If CSR is minimul confinguration, more investgation is not needed. */ 1353 if(chdr->info_len == 1){ 1354 goto nextnode; 1355 }else{ 1356 fc->ongoaddr = CSRROMOFF + 0xc; 1357 } 1358 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0xc)))){ 1359 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1360 fc->ongoaddr = CSRROMOFF + 0x10; 1361 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0x10)))){ 1362 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1363 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) 1364 goto nextnode; 1365 fc->ongoaddr = CSRROMOFF; 1366 } 1367 }else{ 1368 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1369 if(fc->ongoaddr > fc->ongodev->rommax){ 1370 fc->ongodev->rommax = fc->ongoaddr; 1371 } 1372 csrd = SLIST_FIRST(&fc->ongocsr); 1373 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1374 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1375 offset = CSRROMOFF; 1376 }else{ 1377 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1378 offset = csrd->off; 1379 } 1380 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1381 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1382 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1383 csrd = SLIST_FIRST(&fc->csrfree); 1384 if(csrd == NULL){ 1385 goto nextnode; 1386 }else{ 1387 csrd->ongoaddr = fc->ongoaddr; 1388 fc->ongoaddr += csrreg->val * 4; 1389 csrd->off = fc->ongoaddr; 1390 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1391 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1392 goto nextaddr; 1393 } 1394 } 1395 } 1396 fc->ongoaddr += 4; 1397 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1398 (fc->ongodev->rommax < 0x414)){ 1399 if(fc->ongodev->rommax <= 0x414){ 1400 csrd = SLIST_FIRST(&fc->csrfree); 1401 if(csrd == NULL) goto nextnode; 1402 csrd->off = fc->ongoaddr; 1403 csrd->ongoaddr = fc->ongoaddr; 1404 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1405 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1406 } 1407 goto nextaddr; 1408 } 1409 1410 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1411 if(csrd == NULL){ 1412 goto nextnode; 1413 }; 1414 fc->ongoaddr = csrd->ongoaddr + 4; 1415 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1416 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1417 csrd = SLIST_FIRST(&fc->ongocsr); 1418 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1419 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1420 offset = CSRROMOFF; 1421 }else{ 1422 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1423 offset = csrd->off; 1424 } 1425 } 1426 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1427 goto nextnode; 1428 } 1429 } 1430nextaddr: 1431 fw_xfer_free( xfer); 1432 fw_bus_explore(fc); 1433 return; 1434nextnode: 1435 fw_xfer_free( xfer); 1436 fc->ongonode++; 1437/* housekeeping work space */ 1438 fc->ongoaddr = CSRROMOFF; 1439 fc->ongodev = NULL; 1440 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1441 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1442 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1443 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1444 } 1445 fw_bus_explore(fc); 1446 return; 1447} 1448 1449/* 1450 * To obtain CSR register values. 1451 */ 1452u_int32_t 1453getcsrdata(struct fw_device *fwdev, u_int8_t key) 1454{ 1455 int i; 1456 struct csrhdr *chdr; 1457 struct csrreg *creg; 1458 chdr = (struct csrhdr *)&fwdev->csrrom[0]; 1459 for( i = chdr->info_len + 4; i <= fwdev->rommax - CSRROMOFF; i+=4){ 1460 creg = (struct csrreg *)&fwdev->csrrom[i/4]; 1461 if(creg->key == key){ 1462 return (u_int32_t)creg->val; 1463 } 1464 } 1465 return 0; 1466} 1467 1468/* 1469 * To attach sub-devices layer onto IEEE1394 bus. 1470 */ 1471static void 1472fw_attach_dev(struct firewire_comm *fc) 1473{ 1474 struct fw_device *fwdev; 1475 struct fw_xfer *xfer; 1476 int i, err; 1477 device_t *devlistp; 1478 int devcnt; 1479 struct firewire_dev_comm *fdc; 1480 u_int32_t spec, ver; 1481 1482 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 1483 fwdev = TAILQ_NEXT(fwdev, link)){ 1484 if(fwdev->status == FWDEVINIT){ 1485 spec = getcsrdata(fwdev, CSRKEY_SPEC); 1486 if(spec == 0) 1487 continue; 1488 ver = getcsrdata(fwdev, CSRKEY_VER); 1489 if(ver == 0) 1490 continue; 1491 fwdev->maxrec = (fwdev->csrrom[2] >> 12) & 0xf; 1492 1493 device_printf(fc->bdev, "Device "); 1494 switch(spec){ 1495 case CSRVAL_ANSIT10: 1496 switch(ver){ 1497 case CSRVAL_T10SBP2: 1498 printf("SBP-II"); 1499 break; 1500 default: 1501 break; 1502 } 1503 break; 1504 case CSRVAL_1394TA: 1505 switch(ver){ 1506 case CSR_PROTAVC: 1507 printf("AV/C"); 1508 break; 1509 case CSR_PROTCAL: 1510 printf("CAL"); 1511 break; 1512 case CSR_PROTEHS: 1513 printf("EHS"); 1514 break; 1515 case CSR_PROTHAVI: 1516 printf("HAVi"); 1517 break; 1518 case CSR_PROTCAM104: 1519 printf("1394 Cam 1.04"); 1520 break; 1521 case CSR_PROTCAM120: 1522 printf("1394 Cam 1.20"); 1523 break; 1524 case CSR_PROTCAM130: 1525 printf("1394 Cam 1.30"); 1526 break; 1527 case CSR_PROTDPP: 1528 printf("1394 Direct print"); 1529 break; 1530 case CSR_PROTIICP: 1531 printf("Industrial & Instrument"); 1532 break; 1533 default: 1534 printf("unknown 1394TA"); 1535 break; 1536 } 1537 break; 1538 default: 1539 printf("unknown spec"); 1540 break; 1541 } 1542 fwdev->status = FWDEVATTACHED; 1543 printf("\n"); 1544 } 1545 } 1546 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1547 if( err != 0 ) 1548 return; 1549 for( i = 0 ; i < devcnt ; i++){ 1550 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1551 fdc = device_get_softc(devlistp[i]); 1552 if (fdc->post_explore != NULL) 1553 fdc->post_explore(fdc); 1554 } 1555 } 1556 free(devlistp, M_TEMP); 1557 1558 /* call pending handlers */ 1559 i = 0; 1560 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1561 STAILQ_REMOVE_HEAD(&fc->pending, link); 1562 i++; 1563 if (xfer->act.hand) 1564 xfer->act.hand(xfer); 1565 } 1566 if (i > 0) 1567 printf("fw_attach_dev: %d pending handlers called\n", i); 1568 if (fc->retry_count > 0) { 1569 printf("retry_count = %d\n", fc->retry_count); 1570 fc->retry_probe_handle = timeout((timeout_t *)fc->ibr, 1571 (void *)fc, hz*2); 1572 } 1573 return; 1574} 1575 1576/* 1577 * To allocate uniq transaction label. 1578 */ 1579static int 1580fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1581{ 1582 u_int i; 1583 struct tlabel *tl, *tmptl; 1584 int s; 1585 static u_int32_t label = 0; 1586 1587 s = splfw(); 1588 for( i = 0 ; i < 0x40 ; i ++){ 1589 label = (label + 1) & 0x3f; 1590 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1591 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1592 if(tmptl->xfer->dst == xfer->dst) break; 1593 } 1594 if(tmptl == NULL) { 1595 tl = malloc(sizeof(struct tlabel),M_DEVBUF,M_NOWAIT); 1596 if (tl == NULL) { 1597 splx(s); 1598 return (-1); 1599 } 1600 tl->xfer = xfer; 1601 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1602 splx(s); 1603 return(label); 1604 } 1605 } 1606 splx(s); 1607 1608 printf("fw_get_tlabel: no free tlabel\n"); 1609 return(-1); 1610} 1611 1612/* 1613 * Generic packet receving process. 1614 */ 1615void 1616fw_rcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int sub, u_int off, u_int spd) 1617{ 1618 struct fw_pkt *fp, *resfp; 1619 struct fw_xfer *xfer; 1620 struct fw_bind *bind; 1621 struct firewire_softc *sc; 1622 int s; 1623#if 0 1624 { 1625 u_int32_t *qld; 1626 int i; 1627 qld = (u_int32_t *)buf; 1628 printf("spd %d len:%d\n", spd, len); 1629 for( i = 0 ; i <= len && i < 32; i+= 4){ 1630 printf("0x%08x ", ntohl(qld[i/4])); 1631 if((i % 16) == 15) printf("\n"); 1632 } 1633 if((i % 16) != 15) printf("\n"); 1634 } 1635#endif 1636 fp = (struct fw_pkt *)(buf + off); 1637 switch(fp->mode.common.tcode){ 1638 case FWTCODE_WRES: 1639 case FWTCODE_RRESQ: 1640 case FWTCODE_RRESB: 1641 case FWTCODE_LRES: 1642 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1643 fp->mode.hdr.tlrt >> 2); 1644 if(xfer == NULL) { 1645 printf("fw_rcv: unknown response " 1646 "tcode=%d src=0x%x tl=%x rt=%d data=0x%x\n", 1647 fp->mode.common.tcode, 1648 ntohs(fp->mode.hdr.src), 1649 fp->mode.hdr.tlrt >> 2, 1650 fp->mode.hdr.tlrt & 3, 1651 fp->mode.rresq.data); 1652#if 1 1653 printf("try ad-hoc work around!!\n"); 1654 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1655 (fp->mode.hdr.tlrt >> 2)^3); 1656 if (xfer == NULL) { 1657 printf("no use...\n"); 1658 goto err; 1659 } 1660#else 1661 goto err; 1662#endif 1663 } 1664 switch(xfer->act_type){ 1665 case FWACT_XFER: 1666 if((xfer->sub >= 0) && 1667 ((fc->ir[xfer->sub]->flag & FWXFERQ_MODEMASK ) == 0)){ 1668 xfer->resp = EINVAL; 1669 fw_xfer_done(xfer); 1670 goto err; 1671 } 1672 xfer->recv.len = len; 1673 xfer->recv.off = off; 1674 xfer->recv.buf = buf; 1675 xfer->resp = 0; 1676 fw_xfer_done(xfer); 1677 return; 1678 break; 1679 case FWACT_CH: 1680 default: 1681 goto err; 1682 break; 1683 } 1684 break; 1685 case FWTCODE_WREQQ: 1686 case FWTCODE_WREQB: 1687 case FWTCODE_RREQQ: 1688 case FWTCODE_RREQB: 1689 case FWTCODE_LREQ: 1690 bind = fw_bindlookup(fc, ntohs(fp->mode.rreqq.dest_hi), 1691 ntohl(fp->mode.rreqq.dest_lo)); 1692 if(bind == NULL){ 1693#if __FreeBSD_version >= 500000 1694 printf("Unknown service addr 0x%08x:0x%08x tcode=%x\n", 1695#else 1696 printf("Unknown service addr 0x%08x:0x%08lx tcode=%x\n", 1697#endif 1698 ntohs(fp->mode.rreqq.dest_hi), 1699 ntohl(fp->mode.rreqq.dest_lo), 1700 fp->mode.common.tcode); 1701 if (fc->status == FWBUSRESET) { 1702 printf("fw_rcv: cannot response(bus reset)!\n"); 1703 goto err; 1704 } 1705 xfer = fw_xfer_alloc(); 1706 if(xfer == NULL){ 1707 return; 1708 } 1709 xfer->spd = spd; 1710 xfer->send.buf = malloc(16, M_DEVBUF, M_NOWAIT); 1711 resfp = (struct fw_pkt *)xfer->send.buf; 1712 switch(fp->mode.common.tcode){ 1713 case FWTCODE_WREQQ: 1714 case FWTCODE_WREQB: 1715 resfp->mode.hdr.tcode = FWTCODE_WRES; 1716 xfer->send.len = 12; 1717 break; 1718 case FWTCODE_RREQQ: 1719 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1720 xfer->send.len = 16; 1721 break; 1722 case FWTCODE_RREQB: 1723 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1724 xfer->send.len = 16; 1725 break; 1726 case FWTCODE_LREQ: 1727 resfp->mode.hdr.tcode = FWTCODE_LRES; 1728 xfer->send.len = 16; 1729 break; 1730 } 1731 resfp->mode.hdr.dst = fp->mode.hdr.src; 1732 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1733 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1734 resfp->mode.rresb.rtcode = 7; 1735 resfp->mode.rresb.extcode = 0; 1736 resfp->mode.rresb.len = 0; 1737/* 1738 xfer->act.hand = fw_asy_callback; 1739*/ 1740 xfer->act.hand = fw_xfer_free; 1741 if(fw_asyreq(fc, -1, xfer)){ 1742 fw_xfer_free( xfer); 1743 return; 1744 } 1745 goto err; 1746 } 1747 switch(bind->xfer->act_type){ 1748 case FWACT_XFER: 1749 xfer = fw_xfer_alloc(); 1750 if(xfer == NULL) goto err; 1751 xfer->fc = bind->xfer->fc; 1752 xfer->sc = bind->xfer->sc; 1753 xfer->recv.buf = buf; 1754 xfer->recv.len = len; 1755 xfer->recv.off = off; 1756 xfer->spd = spd; 1757 xfer->act.hand = bind->xfer->act.hand; 1758 if (fc->status != FWBUSRESET) 1759 xfer->act.hand(xfer); 1760 else 1761 STAILQ_INSERT_TAIL(&fc->pending, xfer, link); 1762 return; 1763 break; 1764 case FWACT_CH: 1765 if(fc->ir[bind->xfer->sub]->queued >= 1766 fc->ir[bind->xfer->sub]->maxq){ 1767 device_printf(fc->bdev, 1768 "Discard a packet %x %d\n", 1769 bind->xfer->sub, 1770 fc->ir[bind->xfer->sub]->queued); 1771 goto err; 1772 } 1773 xfer = fw_xfer_alloc(); 1774 if(xfer == NULL) goto err; 1775 xfer->recv.buf = buf; 1776 xfer->recv.len = len; 1777 xfer->recv.off = off; 1778 xfer->spd = spd; 1779 s = splfw(); 1780 fc->ir[bind->xfer->sub]->queued++; 1781 STAILQ_INSERT_TAIL(&fc->ir[bind->xfer->sub]->q, xfer, link); 1782 splx(s); 1783 1784 wakeup((caddr_t)fc->ir[bind->xfer->sub]); 1785 1786 return; 1787 break; 1788 default: 1789 goto err; 1790 break; 1791 } 1792 break; 1793 case FWTCODE_STREAM: 1794 { 1795 struct fw_xferq *xferq; 1796 1797 xferq = fc->ir[sub]; 1798#if 0 1799 printf("stream rcv dma %d len %d off %d spd %d\n", 1800 sub, len, off, spd); 1801#endif 1802 if(xferq->queued >= xferq->maxq) { 1803 printf("receive queue is full\n"); 1804 goto err; 1805 } 1806 xfer = fw_xfer_alloc(); 1807 if(xfer == NULL) goto err; 1808 xfer->recv.buf = buf; 1809 xfer->recv.len = len; 1810 xfer->recv.off = off; 1811 xfer->spd = spd; 1812 s = splfw(); 1813 xferq->queued++; 1814 STAILQ_INSERT_TAIL(&xferq->q, xfer, link); 1815 splx(s); 1816 sc = device_get_softc(fc->bdev); 1817#if __FreeBSD_version >= 500000 1818 if (SEL_WAITING(&xferq->rsel)) 1819#else 1820 if (&xferq->rsel.si_pid != 0) 1821#endif 1822 selwakeup(&xferq->rsel); 1823 if (xferq->flag & FWXFERQ_WAKEUP) { 1824 xferq->flag &= ~FWXFERQ_WAKEUP; 1825 wakeup((caddr_t)xferq); 1826 } 1827 if (xferq->flag & FWXFERQ_HANDLER) { 1828 xferq->hand(xferq); 1829 } 1830 return; 1831 break; 1832 } 1833 default: 1834 printf("fw_rcv: unknow tcode\n"); 1835 break; 1836 } 1837err: 1838 free(buf, M_DEVBUF); 1839} 1840 1841/* 1842 * Post process for Bus Manager election process. 1843 */ 1844static void 1845fw_try_bmr_callback(struct fw_xfer *xfer) 1846{ 1847 struct fw_pkt *rfp; 1848 struct firewire_comm *fc; 1849 int bmr; 1850 1851 if (xfer == NULL) 1852 return; 1853 fc = xfer->fc; 1854 if (xfer->resp != 0) 1855 goto error; 1856 if (xfer->send.buf == NULL) 1857 goto error; 1858 if (xfer->recv.buf == NULL) 1859 goto error; 1860 rfp = (struct fw_pkt *)xfer->recv.buf; 1861 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE) 1862 goto error; 1863 1864 bmr = ntohl(rfp->mode.lres.payload[0]); 1865 if (bmr == 0x3f) 1866 bmr = fc->nodeid; 1867 1868 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 1869 device_printf(fc->bdev, "new bus manager %d ", 1870 CSRARC(fc, BUS_MGR_ID)); 1871 if(bmr == fc->nodeid){ 1872 printf("(me)\n"); 1873 fw_bmr(fc); 1874 }else{ 1875 printf("\n"); 1876 } 1877error: 1878 fw_xfer_free(xfer); 1879} 1880 1881/* 1882 * To candidate Bus Manager election process. 1883 */ 1884void 1885fw_try_bmr(void *arg) 1886{ 1887 struct fw_xfer *xfer; 1888 struct firewire_comm *fc = (struct firewire_comm *)arg; 1889 struct fw_pkt *fp; 1890 int err = 0; 1891 1892 xfer = fw_xfer_alloc(); 1893 if(xfer == NULL){ 1894 return; 1895 } 1896 xfer->send.len = 24; 1897 xfer->spd = 0; 1898 xfer->send.buf = malloc(24, M_DEVBUF, M_NOWAIT); 1899 if(xfer->send.buf == NULL){ 1900 fw_xfer_free( xfer); 1901 return; 1902 } 1903 1904 fc->status = FWBUSMGRELECT; 1905 1906 xfer->send.off = 0; 1907 fp = (struct fw_pkt *)xfer->send.buf; 1908 fp->mode.lreq.dest_hi = htons(0xffff); 1909 fp->mode.lreq.tlrt = 0; 1910 fp->mode.lreq.tcode = FWTCODE_LREQ; 1911 fp->mode.lreq.pri = 0; 1912 fp->mode.lreq.src = 0; 1913 fp->mode.lreq.len = htons(8); 1914 fp->mode.lreq.extcode = htons(FW_LREQ_CMPSWAP); 1915 xfer->dst = FWLOCALBUS | fc->irm; 1916 fp->mode.lreq.dst = htons(xfer->dst); 1917 fp->mode.lreq.dest_lo = htonl(0xf0000000 | BUS_MGR_ID); 1918 fp->mode.lreq.payload[0] = htonl(0x3f); 1919 fp->mode.lreq.payload[1] = htonl(fc->nodeid); 1920 xfer->act_type = FWACT_XFER; 1921 xfer->act.hand = fw_try_bmr_callback; 1922 1923 err = fw_asyreq(fc, -1, xfer); 1924 if(err){ 1925 fw_xfer_free( xfer); 1926 return; 1927 } 1928 return; 1929} 1930 1931#ifdef FW_VMACCESS 1932/* 1933 * Software implementation for physical memory block access. 1934 * XXX:Too slow, usef for debug purpose only. 1935 */ 1936static void 1937fw_vmaccess(struct fw_xfer *xfer){ 1938 struct fw_pkt *rfp, *sfp = NULL; 1939 u_int32_t *ld = (u_int32_t *)(xfer->recv.buf + xfer->recv.off); 1940 1941 printf("vmaccess spd:%2x len:%03x %d data:%08x %08x %08x %08x\n", 1942 xfer->spd, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1943 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1944 if(xfer->resp != 0){ 1945 fw_xfer_free( xfer); 1946 return; 1947 } 1948 if(xfer->recv.buf == NULL){ 1949 fw_xfer_free( xfer); 1950 return; 1951 } 1952 rfp = (struct fw_pkt *)xfer->recv.buf; 1953 switch(rfp->mode.hdr.tcode){ 1954 /* XXX need fix for 64bit arch */ 1955 case FWTCODE_WREQB: 1956 xfer->send.buf = malloc(12, M_DEVBUF, M_NOWAIT); 1957 xfer->send.len = 12; 1958 sfp = (struct fw_pkt *)xfer->send.buf; 1959 bcopy(rfp->mode.wreqb.payload, 1960 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 1961 sfp->mode.wres.tcode = FWTCODE_WRES; 1962 sfp->mode.wres.rtcode = 0; 1963 break; 1964 case FWTCODE_WREQQ: 1965 xfer->send.buf = malloc(12, M_DEVBUF, M_NOWAIT); 1966 xfer->send.len = 12; 1967 sfp->mode.wres.tcode = FWTCODE_WRES; 1968 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 1969 sfp->mode.wres.rtcode = 0; 1970 break; 1971 case FWTCODE_RREQB: 1972 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_DEVBUF, M_NOWAIT); 1973 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 1974 sfp = (struct fw_pkt *)xfer->send.buf; 1975 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 1976 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 1977 sfp->mode.rresb.tcode = FWTCODE_RRESB; 1978 sfp->mode.rresb.len = rfp->mode.rreqb.len; 1979 sfp->mode.rresb.rtcode = 0; 1980 sfp->mode.rresb.extcode = 0; 1981 break; 1982 case FWTCODE_RREQQ: 1983 xfer->send.buf = malloc(16, M_DEVBUF, M_NOWAIT); 1984 xfer->send.len = 16; 1985 sfp = (struct fw_pkt *)xfer->send.buf; 1986 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 1987 sfp->mode.wres.tcode = FWTCODE_RRESQ; 1988 sfp->mode.rresb.rtcode = 0; 1989 break; 1990 default: 1991 fw_xfer_free( xfer); 1992 return; 1993 } 1994 xfer->send.off = 0; 1995 sfp->mode.hdr.dst = rfp->mode.hdr.src; 1996 xfer->dst = ntohs(rfp->mode.hdr.src); 1997 xfer->act.hand = fw_xfer_free; 1998 xfer->retry_req = fw_asybusy; 1999 2000 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2001 sfp->mode.hdr.pri = 0; 2002 2003 fw_asyreq(xfer->fc, -1, xfer); 2004/**/ 2005 return; 2006} 2007#endif 2008 2009/* 2010 * CRC16 check-sum for IEEE1394 register blocks. 2011 */ 2012u_int16_t 2013fw_crc16(u_int32_t *ptr, u_int32_t len){ 2014 u_int32_t i, sum, crc = 0; 2015 int shift; 2016 len = (len + 3) & ~3; 2017 for(i = 0 ; i < len ; i+= 4){ 2018 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2019 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2020 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2021 } 2022 crc &= 0xffff; 2023 } 2024 return((u_int16_t) crc); 2025} 2026 2027int 2028fw_bmr(struct firewire_comm *fc) 2029{ 2030 struct fw_device fwdev; 2031 int cmstr; 2032 2033 /* XXX Assume that the current root node is cycle master capable */ 2034 cmstr = fc->max_node; 2035 /* If I am the bus manager, optimize gapcount */ 2036 if(fc->max_hop <= MAX_GAPHOP ){ 2037 fw_phy_config(fc, (fc->max_node > 0)?cmstr:-1, 2038 gap_cnt[fc->max_hop]); 2039 } 2040 /* If we are the cycle master, nothing to do */ 2041 if (cmstr == fc->nodeid) 2042 return 0; 2043 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2044 bzero(&fwdev, sizeof(fwdev)); 2045 fwdev.fc = fc; 2046 fwdev.dst = cmstr; 2047 fwdev.speed = 0; 2048 fwdev.maxrec = 8; /* 512 */ 2049 fwdev.status = FWDEVINIT; 2050 /* Set cmstr bit on the cycle master */ 2051 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2052 0xffff, 0xf0000000 | STATE_SET, 1 << 16, 2053 fw_asy_callback_free); 2054 2055 return 0; 2056} 2057 2058DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); 2059MODULE_VERSION(firewire, 1); 2060