firewire.c revision 111942
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 111942 2003-03-06 05:06:44Z 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 68MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 69MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 70 71#define FW_MAXASYRTY 4 72#define FW_MAXDEVRCNT 4 73 74#define XFER_TIMEOUT 0 75 76devclass_t firewire_devclass; 77 78static int firewire_match __P((device_t)); 79static int firewire_attach __P((device_t)); 80static int firewire_detach __P((device_t)); 81#if 0 82static int firewire_shutdown __P((device_t)); 83#endif 84static device_t firewire_add_child __P((device_t, int, const char *, int)); 85static void fw_try_bmr __P((void *)); 86static void fw_try_bmr_callback __P((struct fw_xfer *)); 87static void fw_asystart __P((struct fw_xfer *)); 88static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *)); 89static void fw_bus_probe __P((struct firewire_comm *)); 90static void fw_bus_explore __P((struct firewire_comm *)); 91static void fw_bus_explore_callback __P((struct fw_xfer *)); 92static void fw_attach_dev __P((struct firewire_comm *)); 93#ifdef FW_VMACCESS 94static void fw_vmaccess __P((struct fw_xfer *)); 95#endif 96struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 97 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *)))); 98static int fw_bmr __P((struct firewire_comm *)); 99 100static device_method_t firewire_methods[] = { 101 /* Device interface */ 102 DEVMETHOD(device_probe, firewire_match), 103 DEVMETHOD(device_attach, firewire_attach), 104 DEVMETHOD(device_detach, firewire_detach), 105 DEVMETHOD(device_suspend, bus_generic_suspend), 106 DEVMETHOD(device_resume, bus_generic_resume), 107 DEVMETHOD(device_shutdown, bus_generic_shutdown), 108 109 /* Bus interface */ 110 DEVMETHOD(bus_add_child, firewire_add_child), 111 DEVMETHOD(bus_print_child, bus_generic_print_child), 112 113 { 0, 0 } 114}; 115char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"}; 116 117#define MAX_GAPHOP 16 118u_int gap_cnt[] = {1, 1, 4, 6, 9, 12, 14, 17, 119 20, 23, 25, 28, 31, 33, 36, 39, 42}; 120 121extern struct cdevsw firewire_cdevsw; 122 123static driver_t firewire_driver = { 124 "firewire", 125 firewire_methods, 126 sizeof(struct firewire_softc), 127}; 128 129/* 130 * Lookup fwdev by node id. 131 */ 132struct fw_device * 133fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 134{ 135 struct fw_device *fwdev; 136 int s; 137 138 s = splfw(); 139 STAILQ_FOREACH(fwdev, &fc->devices, link) 140 if (fwdev->dst == dst) 141 break; 142 splx(s); 143 144 if(fwdev == NULL) return NULL; 145 if(fwdev->status == FWDEVINVAL) return NULL; 146 return fwdev; 147} 148 149/* 150 * Lookup fwdev by EUI64. 151 */ 152struct fw_device * 153fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 154{ 155 struct fw_device *fwdev; 156 int s; 157 158 s = splfw(); 159 STAILQ_FOREACH(fwdev, &fc->devices, link) 160 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 161 break; 162 splx(s); 163 164 if(fwdev == NULL) return NULL; 165 if(fwdev->status == FWDEVINVAL) return NULL; 166 return fwdev; 167} 168 169/* 170 * Async. request procedure for userland application. 171 */ 172int 173fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 174{ 175 int err = 0; 176 struct fw_xferq *xferq; 177 int tl = 0, len; 178 struct fw_pkt *fp; 179 int tcode; 180 struct tcode_info *info; 181 182 if(xfer == NULL) return EINVAL; 183 if(xfer->send.len > MAXREC(fc->maxrec)){ 184 printf("send.len > maxrec\n"); 185 return EINVAL; 186 } 187 if(xfer->act.hand == NULL){ 188 printf("act.hand == NULL\n"); 189 return EINVAL; 190 } 191 fp = (struct fw_pkt *)xfer->send.buf; 192 193 tcode = fp->mode.common.tcode & 0xf; 194 info = &fc->tcode[tcode]; 195 if (info->flag == 0) { 196 printf("invalid tcode=%d\n", tcode); 197 return EINVAL; 198 } 199 if (info->flag & FWTI_REQ) 200 xferq = fc->atq; 201 else 202 xferq = fc->ats; 203 len = info->hdr_len; 204 if (info->flag & FWTI_BLOCK_STR) 205 len += ntohs(fp->mode.stream.len); 206 else if (info->flag & FWTI_BLOCK_ASY) 207 len += ntohs(fp->mode.rresb.len); 208 if( len > xfer->send.len ){ 209 printf("len(%d) > send.len(%d) (tcode=%d)\n", 210 len, xfer->send.len, tcode); 211 return EINVAL; 212 } 213 xfer->send.len = len; 214 215 if(xferq->start == NULL){ 216 printf("xferq->start == NULL\n"); 217 return EINVAL; 218 } 219 if(!(xferq->queued < xferq->maxq)){ 220 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 221 xferq->queued); 222 return EINVAL; 223 } 224 225 226 if (info->flag & FWTI_TLABEL) { 227 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 228 return EIO; 229 fp->mode.hdr.tlrt = tl << 2; 230 } 231 232 xfer->tl = tl; 233 xfer->tcode = tcode; 234 xfer->resp = 0; 235 xfer->fc = fc; 236 xfer->q = xferq; 237 xfer->act_type = FWACT_XFER; 238 xfer->retry_req = fw_asybusy; 239 240 fw_asystart(xfer); 241 return err; 242} 243/* 244 * Wakeup blocked process. 245 */ 246void 247fw_asy_callback(struct fw_xfer *xfer){ 248 wakeup(xfer); 249 return; 250} 251/* 252 * Postpone to later retry. 253 */ 254void fw_asybusy(struct fw_xfer *xfer){ 255#if 1 256 printf("fw_asybusy\n"); 257#endif 258#if XFER_TIMEOUT 259 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 260#endif 261/* 262 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 263*/ 264 DELAY(20000); 265 fw_asystart(xfer); 266 return; 267} 268#if XFER_TIMEOUT 269/* 270 * Post timeout for async. request. 271 */ 272void 273fw_xfer_timeout(void *arg) 274{ 275 int s; 276 struct fw_xfer *xfer; 277 278 xfer = (struct fw_xfer *)arg; 279 printf("fw_xfer_timeout status=%d resp=%d\n", xfer->state, xfer->resp); 280 /* XXX set error code */ 281 s = splfw(); 282 xfer->act.hand(xfer); 283 splx(s); 284} 285#endif 286/* 287 * Async. request with given xfer structure. 288 */ 289static void 290fw_asystart(struct fw_xfer *xfer) 291{ 292 struct firewire_comm *fc = xfer->fc; 293 int s; 294 if(xfer->retry++ >= fc->max_asyretry){ 295 xfer->resp = EBUSY; 296 xfer->state = FWXF_BUSY; 297 xfer->act.hand(xfer); 298 return; 299 } 300#if 0 /* XXX allow bus explore packets only after bus rest */ 301 if (fc->status < FWBUSEXPLORE) { 302 xfer->resp = EAGAIN; 303 xfer->state = FWXF_BUSY; 304 if (xfer->act.hand != NULL) 305 xfer->act.hand(xfer); 306 return; 307 } 308#endif 309 s = splfw(); 310 xfer->state = FWXF_INQ; 311 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 312 xfer->q->queued ++; 313 splx(s); 314 /* XXX just queue for mbuf */ 315 if (xfer->mbuf == NULL) 316 xfer->q->start(fc); 317#if XFER_TIMEOUT 318 if (xfer->act.hand != NULL) 319 xfer->ch = timeout(fw_xfer_timeout, (void *)xfer, hz); 320#endif 321 return; 322} 323 324static int 325firewire_match( device_t dev ) 326{ 327 device_set_desc(dev, "IEEE1394(FireWire) bus"); 328 return -140; 329} 330 331static void 332firewire_xfer_timeout(struct firewire_comm *fc) 333{ 334 struct fw_xfer *xfer; 335 struct tlabel *tl; 336 struct timeval tv; 337 struct timeval split_timeout; 338 int i, s; 339 340 split_timeout.tv_sec = 6; 341 split_timeout.tv_usec = 0; 342 343 microtime(&tv); 344 timevalsub(&tv, &split_timeout); 345 346 s = splfw(); 347 for (i = 0; i < 0x40; i ++) { 348 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 349 xfer = tl->xfer; 350 if (timevalcmp(&xfer->tv, &tv, >)) 351 /* the rests are newer than this */ 352 break; 353 device_printf(fc->bdev, 354 "split transaction timeout dst=0x%x tl=0x%x\n", 355 xfer->dst, i); 356 xfer->resp = ETIMEDOUT; 357 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 358 switch (xfer->act_type) { 359 case FWACT_XFER: 360 fw_xfer_done(xfer); 361 break; 362 default: 363 /* ??? */ 364 fw_xfer_free(xfer); 365 break; 366 } 367 } 368 } 369 splx(s); 370} 371 372static void 373firewire_watchdog(void *arg) 374{ 375 struct firewire_comm *fc; 376 377 fc = (struct firewire_comm *)arg; 378 firewire_xfer_timeout(fc); 379 fc->timeout(fc); 380 callout_reset(&fc->timeout_callout, hz, 381 (void *)firewire_watchdog, (void *)fc); 382} 383 384/* 385 * The attach routine. 386 */ 387static int 388firewire_attach( device_t dev ) 389{ 390 int i, unitmask, mn; 391 struct firewire_softc *sc = device_get_softc(dev); 392 device_t pa = device_get_parent(dev); 393 struct firewire_comm *fc; 394 dev_t d; 395 396 fc = (struct firewire_comm *)device_get_softc(pa); 397 sc->fc = fc; 398 fc->status = -1; 399 400 unitmask = UNIT2MIN(device_get_unit(dev)); 401 402 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 403 for ( i = 0 ; i < fc->nisodma ; i++ ){ 404 mn = unitmask | i; 405 /* XXX device name should be improved */ 406 d = make_dev(&firewire_cdevsw, unit2minor(mn), 407 UID_ROOT, GID_OPERATOR, 0660, 408 "fw%x", mn); 409#if __FreeBSD_version >= 500000 410 if (i == 0) 411 sc->dev = d; 412 else 413 dev_depends(sc->dev, d); 414#else 415 sc->dev[i] = d; 416#endif 417 } 418 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG), 419 UID_ROOT, GID_OPERATOR, 0660, 420 "fwmem%d", device_get_unit(dev)); 421#if __FreeBSD_version >= 500000 422 dev_depends(sc->dev, d); 423#else 424 sc->dev[i] = d; 425#endif 426 CALLOUT_INIT(&sc->fc->timeout_callout); 427 CALLOUT_INIT(&sc->fc->bmr_callout); 428 CALLOUT_INIT(&sc->fc->retry_probe_callout); 429 CALLOUT_INIT(&sc->fc->busprobe_callout); 430 431 callout_reset(&sc->fc->timeout_callout, hz, 432 (void *)firewire_watchdog, (void *)sc->fc); 433 434 /* Locate our children */ 435 bus_generic_probe(dev); 436 437 /* launch attachement of the added children */ 438 bus_generic_attach(dev); 439 440#if 1 441 /* bus_reset */ 442 fc->ibr(fc); 443#endif 444 445 return 0; 446} 447 448/* 449 * Attach it as child. 450 */ 451static device_t 452firewire_add_child(device_t dev, int order, const char *name, int unit) 453{ 454 device_t child; 455 struct firewire_softc *sc; 456 457 sc = (struct firewire_softc *)device_get_softc(dev); 458 child = device_add_child(dev, name, unit); 459 if (child) { 460 device_set_ivars(child, sc->fc); 461 device_probe_and_attach(child); 462 } 463 464 return child; 465} 466 467/* 468 * Dettach it. 469 */ 470static int 471firewire_detach( device_t dev ) 472{ 473 struct firewire_softc *sc; 474 struct csrdir *csrd, *next; 475 struct fw_device *fwdev, *fwdev_next; 476 477 sc = (struct firewire_softc *)device_get_softc(dev); 478 479 bus_generic_detach(dev); 480 481 callout_stop(&sc->fc->timeout_callout); 482 callout_stop(&sc->fc->bmr_callout); 483 callout_stop(&sc->fc->retry_probe_callout); 484 callout_stop(&sc->fc->busprobe_callout); 485 486#if __FreeBSD_version >= 500000 487 destroy_dev(sc->dev); 488#else 489 { 490 int j; 491 for (j = 0 ; j < sc->fc->nisodma + 1; j++) 492 destroy_dev(sc->dev[j]); 493 } 494#endif 495 /* XXX xfree_free and untimeout on all xfers */ 496 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 497 fwdev = fwdev_next) { 498 fwdev_next = STAILQ_NEXT(fwdev, link); 499 free(fwdev, M_FW); 500 } 501 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 502 next = SLIST_NEXT(csrd, link); 503 free(csrd, M_FW); 504 } 505 free(sc->fc->topology_map, M_FW); 506 free(sc->fc->speed_map, M_FW); 507 return(0); 508} 509#if 0 510static int 511firewire_shutdown( device_t dev ) 512{ 513 return 0; 514} 515#endif 516 517 518static void 519fw_xferq_drain(struct fw_xferq *xferq) 520{ 521 struct fw_xfer *xfer; 522 523 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 524 STAILQ_REMOVE_HEAD(&xferq->q, link); 525 xferq->queued --; 526 xfer->resp = EAGAIN; 527 switch (xfer->act_type) { 528 case FWACT_XFER: 529 fw_xfer_done(xfer); 530 break; 531 default: 532 /* ??? */ 533 fw_xfer_free(xfer); 534 break; 535 } 536 } 537} 538 539void 540fw_drain_txq(struct firewire_comm *fc) 541{ 542 int i; 543 544 fw_xferq_drain(fc->atq); 545 fw_xferq_drain(fc->ats); 546 for(i = 0; i < fc->nisodma; i++) 547 fw_xferq_drain(fc->it[i]); 548} 549 550/* 551 * Called after bus reset. 552 */ 553void 554fw_busreset(struct firewire_comm *fc) 555{ 556 int i; 557 558 switch(fc->status){ 559 case FWBUSMGRELECT: 560 callout_stop(&fc->bmr_callout); 561 break; 562 default: 563 break; 564 } 565 fc->status = FWBUSRESET; 566 CSRARC(fc, STATE_CLEAR) 567 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 568 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 569 CSRARC(fc, NODE_IDS) = 0x3f; 570 571 CSRARC(fc, TOPO_MAP + 8) = 0; 572 fc->irm = -1; 573 574 fc->max_node = -1; 575 576 for(i = 2; i < 0x100/4 - 2 ; i++){ 577 CSRARC(fc, SPED_MAP + i * 4) = 0; 578 } 579 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 580 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 581 CSRARC(fc, RESET_START) = 0; 582 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 583 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 584 CSRARC(fc, CYCLE_TIME) = 0x0; 585 CSRARC(fc, BUS_TIME) = 0x0; 586 CSRARC(fc, BUS_MGR_ID) = 0x3f; 587 CSRARC(fc, BANDWIDTH_AV) = 4915; 588 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 589 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 590 CSRARC(fc, IP_CHANNELS) = (1 << 31); 591 592 CSRARC(fc, CONF_ROM) = 0x04 << 24; 593 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 594 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 595 1 << 28 | 0xff << 16 | 0x09 << 8; 596 CSRARC(fc, CONF_ROM + 0xc) = 0; 597 598/* DV depend CSRs see blue book */ 599 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 600 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 601 602 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 603 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 604} 605 606/* Call once after reboot */ 607void fw_init(struct firewire_comm *fc) 608{ 609 int i; 610 struct csrdir *csrd; 611#ifdef FW_VMACCESS 612 struct fw_xfer *xfer; 613 struct fw_bind *fwb; 614#endif 615 616 fc->max_asyretry = FW_MAXASYRTY; 617 618 fc->arq->queued = 0; 619 fc->ars->queued = 0; 620 fc->atq->queued = 0; 621 fc->ats->queued = 0; 622 623 fc->arq->psize = PAGE_SIZE; 624 fc->ars->psize = PAGE_SIZE; 625 fc->atq->psize = 0; 626 fc->ats->psize = 0; 627 628 629 fc->arq->buf = NULL; 630 fc->ars->buf = NULL; 631 fc->atq->buf = NULL; 632 fc->ats->buf = NULL; 633 634 fc->arq->flag = FWXFERQ_PACKET; 635 fc->ars->flag = FWXFERQ_PACKET; 636 fc->atq->flag = FWXFERQ_PACKET; 637 fc->ats->flag = FWXFERQ_PACKET; 638 639 STAILQ_INIT(&fc->atq->q); 640 STAILQ_INIT(&fc->ats->q); 641 642 for( i = 0 ; i < fc->nisodma ; i ++ ){ 643 fc->it[i]->queued = 0; 644 fc->ir[i]->queued = 0; 645 646 fc->it[i]->start = NULL; 647 fc->ir[i]->start = NULL; 648 649 fc->it[i]->buf = NULL; 650 fc->ir[i]->buf = NULL; 651 652 fc->it[i]->flag = FWXFERQ_STREAM; 653 fc->ir[i]->flag = FWXFERQ_STREAM; 654 655 STAILQ_INIT(&fc->it[i]->q); 656 STAILQ_INIT(&fc->ir[i]->q); 657 658 STAILQ_INIT(&fc->it[i]->binds); 659 STAILQ_INIT(&fc->ir[i]->binds); 660 } 661 662 fc->arq->maxq = FWMAXQUEUE; 663 fc->ars->maxq = FWMAXQUEUE; 664 fc->atq->maxq = FWMAXQUEUE; 665 fc->ats->maxq = FWMAXQUEUE; 666 667 for( i = 0 ; i < fc->nisodma ; i++){ 668 fc->ir[i]->maxq = FWMAXQUEUE; 669 fc->it[i]->maxq = FWMAXQUEUE; 670 } 671/* Initialize csr registers */ 672 fc->topology_map = (struct fw_topology_map *)malloc( 673 sizeof(struct fw_topology_map), 674 M_FW, M_NOWAIT | M_ZERO); 675 fc->speed_map = (struct fw_speed_map *)malloc( 676 sizeof(struct fw_speed_map), 677 M_FW, M_NOWAIT | M_ZERO); 678 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 679 CSRARC(fc, TOPO_MAP + 4) = 1; 680 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 681 CSRARC(fc, SPED_MAP + 4) = 1; 682 683 STAILQ_INIT(&fc->devices); 684 STAILQ_INIT(&fc->pending); 685 686/* Initialize csr ROM work space */ 687 SLIST_INIT(&fc->ongocsr); 688 SLIST_INIT(&fc->csrfree); 689 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 690 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 691 if(csrd == NULL) break; 692 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 693 } 694 695/* Initialize Async handlers */ 696 STAILQ_INIT(&fc->binds); 697 for( i = 0 ; i < 0x40 ; i++){ 698 STAILQ_INIT(&fc->tlabels[i]); 699 } 700 701/* DV depend CSRs see blue book */ 702#if 0 703 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 704 CSRARC(fc, oPCR) = 0x8000007a; 705 for(i = 4 ; i < 0x7c/4 ; i+=4){ 706 CSRARC(fc, i + oPCR) = 0x8000007a; 707 } 708 709 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 710 CSRARC(fc, iPCR) = 0x803f0000; 711 for(i = 4 ; i < 0x7c/4 ; i+=4){ 712 CSRARC(fc, i + iPCR) = 0x0; 713 } 714#endif 715 716 717#ifdef FW_VMACCESS 718 xfer = fw_xfer_alloc(); 719 if(xfer == NULL) return; 720 721 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 722 if(fwb == NULL){ 723 fw_xfer_free(xfer); 724 } 725 xfer->act.hand = fw_vmaccess; 726 xfer->act_type = FWACT_XFER; 727 xfer->fc = fc; 728 xfer->sc = NULL; 729 730 fwb->start_hi = 0x2; 731 fwb->start_lo = 0; 732 fwb->addrlen = 0xffffffff; 733 fwb->xfer = xfer; 734 fw_bindadd(fc, fwb); 735#endif 736} 737 738/* 739 * To lookup binded process from IEEE1394 address. 740 */ 741struct fw_bind * 742fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 743{ 744 struct fw_bind *tfw; 745 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 746 tfw = STAILQ_NEXT(tfw, fclist)){ 747 if(tfw->xfer->act_type != FWACT_NULL && 748 tfw->start_hi == dest_hi && 749 tfw->start_lo <= dest_lo && 750 (tfw->start_lo + tfw->addrlen) > dest_lo){ 751 return(tfw); 752 } 753 } 754 return(NULL); 755} 756 757/* 758 * To bind IEEE1394 address block to process. 759 */ 760int 761fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 762{ 763 struct fw_bind *tfw, *tfw2 = NULL; 764 int err = 0; 765 tfw = STAILQ_FIRST(&fc->binds); 766 if(tfw == NULL){ 767 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 768 goto out; 769 } 770 if((tfw->start_hi > fwb->start_hi) || 771 (tfw->start_hi == fwb->start_hi && 772 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 773 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 774 goto out; 775 } 776 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 777 if((tfw->start_hi < fwb->start_hi) || 778 (tfw->start_hi == fwb->start_hi && 779 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 780 tfw2 = STAILQ_NEXT(tfw, fclist); 781 if(tfw2 == NULL) 782 break; 783 if((tfw2->start_hi > fwb->start_hi) || 784 (tfw2->start_hi == fwb->start_hi && 785 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 786 break; 787 }else{ 788 err = EBUSY; 789 goto out; 790 } 791 } 792 } 793 if(tfw != NULL){ 794 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 795 }else{ 796 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 797 } 798out: 799 if(!err && fwb->xfer->act_type == FWACT_CH){ 800 STAILQ_INSERT_HEAD(&fc->ir[fwb->xfer->sub]->binds, fwb, chlist); 801 } 802 return err; 803} 804 805/* 806 * To free IEEE1394 address block. 807 */ 808int 809fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 810{ 811 int s; 812 813 s = splfw(); 814 /* shall we check the existance? */ 815 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 816 splx(s); 817 if (fwb->xfer) 818 fw_xfer_free(fwb->xfer); 819 820 return 0; 821} 822 823/* 824 * To free transaction label. 825 */ 826static void 827fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 828{ 829 struct tlabel *tl; 830 int s = splfw(); 831 832 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 833 tl = STAILQ_NEXT(tl, link)){ 834 if(tl->xfer == xfer){ 835 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 836 free(tl, M_FW); 837 splx(s); 838 return; 839 } 840 } 841 splx(s); 842 return; 843} 844 845/* 846 * To obtain XFER structure by transaction label. 847 */ 848static struct fw_xfer * 849fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 850{ 851 struct fw_xfer *xfer; 852 struct tlabel *tl; 853 int s = splfw(); 854 855 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 856 tl = STAILQ_NEXT(tl, link)){ 857 if(tl->xfer->dst == node){ 858 xfer = tl->xfer; 859 splx(s); 860 if (firewire_debug > 2) 861 printf("fw_tl2xfer: found tl=%d\n", tlabel); 862 return(xfer); 863 } 864 } 865 if (firewire_debug > 1) 866 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 867 splx(s); 868 return(NULL); 869} 870 871/* 872 * To allocate IEEE1394 XFER structure. 873 */ 874struct fw_xfer * 875fw_xfer_alloc(struct malloc_type *type) 876{ 877 struct fw_xfer *xfer; 878 879 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 880 if (xfer == NULL) 881 return xfer; 882 883 microtime(&xfer->tv); 884 xfer->sub = -1; 885 xfer->malloc = type; 886 887 return xfer; 888} 889 890/* 891 * IEEE1394 XFER post process. 892 */ 893void 894fw_xfer_done(struct fw_xfer *xfer) 895{ 896 if (xfer->act.hand == NULL) 897 return; 898 899#if XFER_TIMEOUT 900 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 901#endif 902 903 if (xfer->fc->status != FWBUSRESET) 904 xfer->act.hand(xfer); 905 else { 906 printf("fw_xfer_done: pending\n"); 907 if (xfer->fc != NULL) 908 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 909 else 910 panic("fw_xfer_done: why xfer->fc is NULL?"); 911 } 912} 913 914/* 915 * To free IEEE1394 XFER structure. 916 */ 917void 918fw_xfer_free( struct fw_xfer* xfer) 919{ 920 int s; 921 if(xfer == NULL ) return; 922 if(xfer->state == FWXF_INQ){ 923 printf("fw_xfer_free FWXF_INQ\n"); 924 s = splfw(); 925 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 926 xfer->q->queued --; 927 splx(s); 928 } 929 if(xfer->fc != NULL){ 930 if(xfer->state == FWXF_START){ 931#if 0 /* this could happen if we call fwohci_arcv() before fwohci_txd() */ 932 printf("fw_xfer_free FWXF_START\n"); 933#endif 934 s = splfw(); 935 xfer->q->drain(xfer->fc, xfer); 936 splx(s); 937 } 938 } 939 if(xfer->send.buf != NULL){ 940 free(xfer->send.buf, M_FW); 941 } 942 if(xfer->recv.buf != NULL){ 943 free(xfer->recv.buf, M_FW); 944 } 945 if(xfer->fc != NULL){ 946 fw_tl_free(xfer->fc, xfer); 947 } 948 free(xfer, xfer->malloc); 949} 950 951static void 952fw_asy_callback_free(struct fw_xfer *xfer) 953{ 954#if 0 955 printf("asyreq done state=%d resp=%d\n", 956 xfer->state, xfer->resp); 957#endif 958 fw_xfer_free(xfer); 959} 960 961/* 962 * To configure PHY. 963 */ 964static void 965fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 966{ 967 struct fw_xfer *xfer; 968 struct fw_pkt *fp; 969 970 fc->status = FWBUSPHYCONF; 971 972#if 0 973 DELAY(100000); 974#endif 975 xfer = fw_xfer_alloc(M_FWXFER); 976 xfer->send.len = 12; 977 xfer->send.off = 0; 978 xfer->fc = fc; 979 xfer->retry_req = fw_asybusy; 980 xfer->act.hand = fw_asy_callback_free; 981 982 xfer->send.buf = malloc(sizeof(u_int32_t), 983 M_FW, M_NOWAIT | M_ZERO); 984 fp = (struct fw_pkt *)xfer->send.buf; 985 fp->mode.ld[1] = 0; 986 if (root_node >= 0) 987 fp->mode.ld[1] |= htonl((root_node & 0x3f) << 24 | 1 << 23); 988 if (gap_count >= 0) 989 fp->mode.ld[1] |= htonl(1 << 22 | (gap_count & 0x3f) << 16); 990 fp->mode.ld[2] = ~fp->mode.ld[1]; 991/* XXX Dangerous, how to pass PHY packet to device driver */ 992 fp->mode.common.tcode |= FWTCODE_PHY; 993 994 if (firewire_debug) 995 printf("send phy_config root_node=%d gap_count=%d\n", 996 root_node, gap_count); 997 fw_asyreq(fc, -1, xfer); 998} 999 1000#if 0 1001/* 1002 * Dump self ID. 1003 */ 1004static void 1005fw_print_sid(u_int32_t sid) 1006{ 1007 union fw_self_id *s; 1008 s = (union fw_self_id *) &sid; 1009 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1010 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1011 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1012 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1013 s->p0.power_class, s->p0.port0, s->p0.port1, 1014 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1015} 1016#endif 1017 1018/* 1019 * To receive self ID. 1020 */ 1021void fw_sidrcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int off) 1022{ 1023 u_int32_t *p, *sid = (u_int32_t *)(buf + off); 1024 union fw_self_id *self_id; 1025 u_int i, j, node, c_port = 0, i_branch = 0; 1026 1027 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1028 fc->status = FWBUSINIT; 1029 fc->max_node = fc->nodeid & 0x3f; 1030 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1031 fc->status = FWBUSCYMELECT; 1032 fc->topology_map->crc_len = 2; 1033 fc->topology_map->generation ++; 1034 fc->topology_map->self_id_count = 0; 1035 fc->topology_map->node_count = 0; 1036 fc->speed_map->generation ++; 1037 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1038 self_id = &fc->topology_map->self_id[0]; 1039 for(i = 0; i < fc->sid_cnt; i ++){ 1040 if (sid[1] != ~sid[0]) { 1041 printf("fw_sidrcv: invalid self-id packet\n"); 1042 sid += 2; 1043 continue; 1044 } 1045 *self_id = *((union fw_self_id *)sid); 1046 fc->topology_map->crc_len++; 1047 if(self_id->p0.sequel == 0){ 1048 fc->topology_map->node_count ++; 1049 c_port = 0; 1050#if 0 1051 fw_print_sid(sid[0]); 1052#endif 1053 node = self_id->p0.phy_id; 1054 if(fc->max_node < node){ 1055 fc->max_node = self_id->p0.phy_id; 1056 } 1057 /* XXX I'm not sure this is the right speed_map */ 1058 fc->speed_map->speed[node][node] 1059 = self_id->p0.phy_speed; 1060 for (j = 0; j < node; j ++) { 1061 fc->speed_map->speed[j][node] 1062 = fc->speed_map->speed[node][j] 1063 = min(fc->speed_map->speed[j][j], 1064 self_id->p0.phy_speed); 1065 } 1066 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1067 (self_id->p0.link_active && self_id->p0.contender)) { 1068 fc->irm = self_id->p0.phy_id; 1069 } 1070 if(self_id->p0.port0 >= 0x2){ 1071 c_port++; 1072 } 1073 if(self_id->p0.port1 >= 0x2){ 1074 c_port++; 1075 } 1076 if(self_id->p0.port2 >= 0x2){ 1077 c_port++; 1078 } 1079 } 1080 if(c_port > 2){ 1081 i_branch += (c_port - 2); 1082 } 1083 sid += 2; 1084 self_id++; 1085 fc->topology_map->self_id_count ++; 1086 } 1087 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1088 /* CRC */ 1089 fc->topology_map->crc = fw_crc16( 1090 (u_int32_t *)&fc->topology_map->generation, 1091 fc->topology_map->crc_len * 4); 1092 fc->speed_map->crc = fw_crc16( 1093 (u_int32_t *)&fc->speed_map->generation, 1094 fc->speed_map->crc_len * 4); 1095 /* byteswap and copy to CSR */ 1096 p = (u_int32_t *)fc->topology_map; 1097 for (i = 0; i <= fc->topology_map->crc_len; i++) 1098 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1099 p = (u_int32_t *)fc->speed_map; 1100 CSRARC(fc, SPED_MAP) = htonl(*p++); 1101 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1102 /* don't byte-swap u_int8_t array */ 1103 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1104 1105 fc->max_hop = fc->max_node - i_branch; 1106#if 1 1107 printf(", maxhop <= %d", fc->max_hop); 1108#endif 1109 1110 if(fc->irm == -1 ){ 1111 printf(", Not found IRM capable node"); 1112 }else{ 1113 printf(", cable IRM = %d", fc->irm); 1114 if (fc->irm == fc->nodeid) 1115 printf(" (me)"); 1116 } 1117 printf("\n"); 1118 1119 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1120 if (fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)) { 1121 fc->status = FWBUSMGRDONE; 1122 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1123 } else { 1124 fc->status = FWBUSMGRELECT; 1125 callout_reset(&fc->bmr_callout, hz/8, 1126 (void *)fw_try_bmr, (void *)fc); 1127 } 1128 } else { 1129 fc->status = FWBUSMGRDONE; 1130#if 0 1131 device_printf(fc->bdev, "BMR = %x\n", 1132 CSRARC(fc, BUS_MGR_ID)); 1133#endif 1134 } 1135 free(buf, M_FW); 1136 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ 1137 /* I am BMGR */ 1138 fw_bmr(fc); 1139 } 1140 callout_reset(&fc->busprobe_callout, hz/4, 1141 (void *)fw_bus_probe, (void *)fc); 1142} 1143 1144/* 1145 * To probe devices on the IEEE1394 bus. 1146 */ 1147static void 1148fw_bus_probe(struct firewire_comm *fc) 1149{ 1150 int s; 1151 struct fw_device *fwdev, *next; 1152 1153 s = splfw(); 1154 fc->status = FWBUSEXPLORE; 1155 fc->retry_count = 0; 1156 1157/* 1158 * Invalidate all devices, just after bus reset. Devices 1159 * to be removed has not been seen longer time. 1160 */ 1161 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1162 next = STAILQ_NEXT(fwdev, link); 1163 if (fwdev->status != FWDEVINVAL) { 1164 fwdev->status = FWDEVINVAL; 1165 fwdev->rcnt = 0; 1166 } else if(fwdev->rcnt < FW_MAXDEVRCNT) { 1167 fwdev->rcnt ++; 1168 } else { 1169 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1170 free(fwdev, M_FW); 1171 } 1172 } 1173 fc->ongonode = 0; 1174 fc->ongoaddr = CSRROMOFF; 1175 fc->ongodev = NULL; 1176 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1177 fw_bus_explore(fc); 1178 splx(s); 1179} 1180 1181/* 1182 * To collect device informations on the IEEE1394 bus. 1183 */ 1184static void 1185fw_bus_explore(struct firewire_comm *fc ) 1186{ 1187 int err = 0; 1188 struct fw_device *fwdev, *pfwdev, *tfwdev; 1189 u_int32_t addr; 1190 struct fw_xfer *xfer; 1191 struct fw_pkt *fp; 1192 1193 if(fc->status != FWBUSEXPLORE) 1194 return; 1195 1196loop: 1197 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1198 1199 if(fc->ongonode > fc->max_node) goto done; 1200 if(fc->ongonode >= 0x3f) goto done; 1201 1202 /* check link */ 1203 /* XXX we need to check phy_id first */ 1204 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1205 if (firewire_debug) 1206 printf("node%d: link down\n", fc->ongonode); 1207 fc->ongonode++; 1208 goto loop; 1209 } 1210 1211 if(fc->ongoaddr <= CSRROMOFF && 1212 fc->ongoeui.hi == 0xffffffff && 1213 fc->ongoeui.lo == 0xffffffff ){ 1214 fc->ongoaddr = CSRROMOFF; 1215 addr = 0xf0000000 | fc->ongoaddr; 1216 }else if(fc->ongoeui.hi == 0xffffffff ){ 1217 fc->ongoaddr = CSRROMOFF + 0xc; 1218 addr = 0xf0000000 | fc->ongoaddr; 1219 }else if(fc->ongoeui.lo == 0xffffffff ){ 1220 fc->ongoaddr = CSRROMOFF + 0x10; 1221 addr = 0xf0000000 | fc->ongoaddr; 1222 }else if(fc->ongodev == NULL){ 1223 STAILQ_FOREACH(fwdev, &fc->devices, link) 1224 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1225 break; 1226 if(fwdev != NULL){ 1227 fwdev->dst = fc->ongonode; 1228 fwdev->status = FWDEVATTACHED; 1229 fc->ongonode++; 1230 fc->ongoaddr = CSRROMOFF; 1231 fc->ongodev = NULL; 1232 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1233 goto loop; 1234 } 1235 fwdev = malloc(sizeof(struct fw_device), M_FW, M_NOWAIT); 1236 if(fwdev == NULL) 1237 return; 1238 fwdev->fc = fc; 1239 fwdev->rommax = 0; 1240 fwdev->dst = fc->ongonode; 1241 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1242 fwdev->status = FWDEVINIT; 1243#if 0 1244 fwdev->speed = CSRARC(fc, SPED_MAP + 8 + fc->ongonode / 4) 1245 >> ((3 - (fc->ongonode % 4)) * 8); 1246#else 1247 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1248#endif 1249 1250 pfwdev = NULL; 1251 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1252 if (tfwdev->eui.hi > fwdev->eui.hi || 1253 (tfwdev->eui.hi == fwdev->eui.hi && 1254 tfwdev->eui.lo > fwdev->eui.lo)) 1255 break; 1256 pfwdev = tfwdev; 1257 } 1258 if (pfwdev == NULL) 1259 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1260 else 1261 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1262 1263 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1264 linkspeed[fwdev->speed], 1265 fc->ongoeui.hi, fc->ongoeui.lo); 1266 1267 fc->ongodev = fwdev; 1268 fc->ongoaddr = CSRROMOFF; 1269 addr = 0xf0000000 | fc->ongoaddr; 1270 }else{ 1271 addr = 0xf0000000 | fc->ongoaddr; 1272 } 1273#if 0 1274 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1275 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1276 fw_bus_explore_callback); 1277 if(xfer == NULL) goto done; 1278#else 1279 xfer = fw_xfer_alloc(M_FWXFER); 1280 if(xfer == NULL){ 1281 goto done; 1282 } 1283 xfer->send.len = 16; 1284 xfer->spd = 0; 1285 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1286 if(xfer->send.buf == NULL){ 1287 fw_xfer_free( xfer); 1288 return; 1289 } 1290 1291 xfer->send.off = 0; 1292 fp = (struct fw_pkt *)xfer->send.buf; 1293 fp->mode.rreqq.dest_hi = htons(0xffff); 1294 fp->mode.rreqq.tlrt = 0; 1295 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1296 fp->mode.rreqq.pri = 0; 1297 fp->mode.rreqq.src = 0; 1298 xfer->dst = FWLOCALBUS | fc->ongonode; 1299 fp->mode.rreqq.dst = htons(xfer->dst); 1300 fp->mode.rreqq.dest_lo = htonl(addr); 1301 xfer->act.hand = fw_bus_explore_callback; 1302 1303 if (firewire_debug) 1304 printf("node%d: explore addr=0x%x\n", 1305 fc->ongonode, fc->ongoaddr); 1306 err = fw_asyreq(fc, -1, xfer); 1307 if(err){ 1308 fw_xfer_free( xfer); 1309 return; 1310 } 1311#endif 1312 return; 1313done: 1314 /* fw_attach_devs */ 1315 fc->status = FWBUSEXPDONE; 1316 if (firewire_debug) 1317 printf("bus_explore done\n"); 1318 fw_attach_dev(fc); 1319 return; 1320 1321} 1322 1323/* Portable Async. request read quad */ 1324struct fw_xfer * 1325asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1326 u_int32_t addr_hi, u_int32_t addr_lo, 1327 void (*hand) __P((struct fw_xfer*))) 1328{ 1329 struct fw_xfer *xfer; 1330 struct fw_pkt *fp; 1331 int err; 1332 1333 xfer = fw_xfer_alloc(M_FWXFER); 1334 if(xfer == NULL){ 1335 return NULL; 1336 } 1337 xfer->send.len = 16; 1338 xfer->spd = spd; /* XXX:min(spd, fc->spd) */ 1339 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1340 if(xfer->send.buf == NULL){ 1341 fw_xfer_free( xfer); 1342 return NULL; 1343 } 1344 1345 xfer->send.off = 0; 1346 fp = (struct fw_pkt *)xfer->send.buf; 1347 fp->mode.rreqq.dest_hi = htons(addr_hi & 0xffff); 1348 if(tl & FWP_TL_VALID){ 1349 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1350 }else{ 1351 fp->mode.rreqq.tlrt = 0; 1352 } 1353 fp->mode.rreqq.tlrt |= rt & 0x3; 1354 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1355 fp->mode.rreqq.pri = 0; 1356 fp->mode.rreqq.src = 0; 1357 xfer->dst = addr_hi >> 16; 1358 fp->mode.rreqq.dst = htons(xfer->dst); 1359 fp->mode.rreqq.dest_lo = htonl(addr_lo); 1360 xfer->act.hand = hand; 1361 1362 err = fw_asyreq(fc, -1, xfer); 1363 if(err){ 1364 fw_xfer_free( xfer); 1365 return NULL; 1366 } 1367 return xfer; 1368} 1369 1370/* 1371 * Callback for the IEEE1394 bus information collection. 1372 */ 1373static void 1374fw_bus_explore_callback(struct fw_xfer *xfer) 1375{ 1376 struct firewire_comm *fc; 1377 struct fw_pkt *sfp,*rfp; 1378 struct csrhdr *chdr; 1379 struct csrdir *csrd; 1380 struct csrreg *csrreg; 1381 u_int32_t offset; 1382 1383 1384 if(xfer == NULL) { 1385 printf("xfer == NULL\n"); 1386 return; 1387 } 1388 fc = xfer->fc; 1389 1390 if (firewire_debug) 1391 printf("node%d: callback addr=0x%x\n", 1392 fc->ongonode, fc->ongoaddr); 1393 1394 if(xfer->resp != 0){ 1395 printf("node%d: resp=%d addr=0x%x\n", 1396 fc->ongonode, xfer->resp, fc->ongoaddr); 1397 fc->retry_count++; 1398 goto nextnode; 1399 } 1400 1401 if(xfer->send.buf == NULL){ 1402 printf("node%d: send.buf=NULL addr=0x%x\n", 1403 fc->ongonode, fc->ongoaddr); 1404 fc->retry_count++; 1405 goto nextnode; 1406 } 1407 sfp = (struct fw_pkt *)xfer->send.buf; 1408 1409 if(xfer->recv.buf == NULL){ 1410 printf("node%d: recv.buf=NULL addr=0x%x\n", 1411 fc->ongonode, fc->ongoaddr); 1412 fc->retry_count++; 1413 goto nextnode; 1414 } 1415 rfp = (struct fw_pkt *)xfer->recv.buf; 1416#if 0 1417 { 1418 u_int32_t *qld; 1419 int i; 1420 qld = (u_int32_t *)xfer->recv.buf; 1421 printf("len:%d\n", xfer->recv.len); 1422 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1423 printf("0x%08x ", ntohl(rfp->mode.ld[i/4])); 1424 if((i % 16) == 15) printf("\n"); 1425 } 1426 if((i % 16) != 15) printf("\n"); 1427 } 1428#endif 1429 if(fc->ongodev == NULL){ 1430 if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 | CSRROMOFF))){ 1431 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1432 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1433/* If CSR is minimal confinguration, more investgation is not needed. */ 1434 if(chdr->info_len == 1){ 1435 if (firewire_debug) 1436 printf("node%d: minimal config\n", 1437 fc->ongonode); 1438 goto nextnode; 1439 }else{ 1440 fc->ongoaddr = CSRROMOFF + 0xc; 1441 } 1442 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0xc)))){ 1443 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1444 fc->ongoaddr = CSRROMOFF + 0x10; 1445 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0x10)))){ 1446 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1447 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1448 if (firewire_debug) 1449 printf("node%d: eui64 is zero.\n", 1450 fc->ongonode); 1451 goto nextnode; 1452 } 1453 fc->ongoaddr = CSRROMOFF; 1454 } 1455 }else{ 1456 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1457 if(fc->ongoaddr > fc->ongodev->rommax){ 1458 fc->ongodev->rommax = fc->ongoaddr; 1459 } 1460 csrd = SLIST_FIRST(&fc->ongocsr); 1461 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1462 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1463 offset = CSRROMOFF; 1464 }else{ 1465 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1466 offset = csrd->off; 1467 } 1468 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1469 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1470 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1471 csrd = SLIST_FIRST(&fc->csrfree); 1472 if(csrd == NULL){ 1473 goto nextnode; 1474 }else{ 1475 csrd->ongoaddr = fc->ongoaddr; 1476 fc->ongoaddr += csrreg->val * 4; 1477 csrd->off = fc->ongoaddr; 1478 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1479 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1480 goto nextaddr; 1481 } 1482 } 1483 } 1484 fc->ongoaddr += 4; 1485 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1486 (fc->ongodev->rommax < 0x414)){ 1487 if(fc->ongodev->rommax <= 0x414){ 1488 csrd = SLIST_FIRST(&fc->csrfree); 1489 if(csrd == NULL) goto nextnode; 1490 csrd->off = fc->ongoaddr; 1491 csrd->ongoaddr = fc->ongoaddr; 1492 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1493 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1494 } 1495 goto nextaddr; 1496 } 1497 1498 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1499 if(csrd == NULL){ 1500 goto nextnode; 1501 }; 1502 fc->ongoaddr = csrd->ongoaddr + 4; 1503 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1504 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1505 csrd = SLIST_FIRST(&fc->ongocsr); 1506 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1507 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1508 offset = CSRROMOFF; 1509 }else{ 1510 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1511 offset = csrd->off; 1512 } 1513 } 1514 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1515 goto nextnode; 1516 } 1517 } 1518nextaddr: 1519 fw_xfer_free( xfer); 1520 fw_bus_explore(fc); 1521 return; 1522nextnode: 1523 fw_xfer_free( xfer); 1524 fc->ongonode++; 1525/* housekeeping work space */ 1526 fc->ongoaddr = CSRROMOFF; 1527 fc->ongodev = NULL; 1528 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1529 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1530 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1531 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1532 } 1533 fw_bus_explore(fc); 1534 return; 1535} 1536 1537/* 1538 * To obtain CSR register values. 1539 */ 1540u_int32_t 1541getcsrdata(struct fw_device *fwdev, u_int8_t key) 1542{ 1543 int i; 1544 struct csrhdr *chdr; 1545 struct csrreg *creg; 1546 chdr = (struct csrhdr *)&fwdev->csrrom[0]; 1547 for( i = chdr->info_len + 4; i <= fwdev->rommax - CSRROMOFF; i+=4){ 1548 creg = (struct csrreg *)&fwdev->csrrom[i/4]; 1549 if(creg->key == key){ 1550 return (u_int32_t)creg->val; 1551 } 1552 } 1553 return 0; 1554} 1555 1556/* 1557 * To attach sub-devices layer onto IEEE1394 bus. 1558 */ 1559static void 1560fw_attach_dev(struct firewire_comm *fc) 1561{ 1562 struct fw_device *fwdev; 1563 struct fw_xfer *xfer; 1564 int i, err; 1565 device_t *devlistp; 1566 int devcnt; 1567 struct firewire_dev_comm *fdc; 1568 u_int32_t spec, ver; 1569 1570 STAILQ_FOREACH(fwdev, &fc->devices, link) { 1571 if(fwdev->status == FWDEVINIT){ 1572 spec = getcsrdata(fwdev, CSRKEY_SPEC); 1573 if(spec == 0) 1574 continue; 1575 ver = getcsrdata(fwdev, CSRKEY_VER); 1576 if(ver == 0) 1577 continue; 1578 fwdev->maxrec = (fwdev->csrrom[2] >> 12) & 0xf; 1579 1580 device_printf(fc->bdev, "Device "); 1581 switch(spec){ 1582 case CSRVAL_ANSIT10: 1583 switch(ver){ 1584 case CSRVAL_T10SBP2: 1585 printf("SBP-II"); 1586 break; 1587 default: 1588 break; 1589 } 1590 break; 1591 case CSRVAL_1394TA: 1592 switch(ver){ 1593 case CSR_PROTAVC: 1594 printf("AV/C"); 1595 break; 1596 case CSR_PROTCAL: 1597 printf("CAL"); 1598 break; 1599 case CSR_PROTEHS: 1600 printf("EHS"); 1601 break; 1602 case CSR_PROTHAVI: 1603 printf("HAVi"); 1604 break; 1605 case CSR_PROTCAM104: 1606 printf("1394 Cam 1.04"); 1607 break; 1608 case CSR_PROTCAM120: 1609 printf("1394 Cam 1.20"); 1610 break; 1611 case CSR_PROTCAM130: 1612 printf("1394 Cam 1.30"); 1613 break; 1614 case CSR_PROTDPP: 1615 printf("1394 Direct print"); 1616 break; 1617 case CSR_PROTIICP: 1618 printf("Industrial & Instrument"); 1619 break; 1620 default: 1621 printf("unknown 1394TA"); 1622 break; 1623 } 1624 break; 1625 default: 1626 printf("unknown spec"); 1627 break; 1628 } 1629 fwdev->status = FWDEVATTACHED; 1630 printf("\n"); 1631 } 1632 } 1633 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1634 if( err != 0 ) 1635 return; 1636 for( i = 0 ; i < devcnt ; i++){ 1637 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1638 fdc = device_get_softc(devlistp[i]); 1639 if (fdc->post_explore != NULL) 1640 fdc->post_explore(fdc); 1641 } 1642 } 1643 free(devlistp, M_TEMP); 1644 1645 /* call pending handlers */ 1646 i = 0; 1647 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1648 STAILQ_REMOVE_HEAD(&fc->pending, link); 1649 i++; 1650 if (xfer->act.hand) 1651 xfer->act.hand(xfer); 1652 } 1653 if (i > 0) 1654 printf("fw_attach_dev: %d pending handlers called\n", i); 1655 if (fc->retry_count > 0) { 1656 printf("probe failed for %d node\n", fc->retry_count); 1657#if 0 1658 callout_reset(&fc->retry_probe_callout, hz*2, 1659 (void *)fc->ibr, (void *)fc); 1660#endif 1661 } 1662 return; 1663} 1664 1665/* 1666 * To allocate uniq transaction label. 1667 */ 1668static int 1669fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1670{ 1671 u_int i; 1672 struct tlabel *tl, *tmptl; 1673 int s; 1674 static u_int32_t label = 0; 1675 1676 s = splfw(); 1677 for( i = 0 ; i < 0x40 ; i ++){ 1678 label = (label + 1) & 0x3f; 1679 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1680 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1681 if(tmptl->xfer->dst == xfer->dst) break; 1682 } 1683 if(tmptl == NULL) { 1684 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1685 if (tl == NULL) { 1686 splx(s); 1687 return (-1); 1688 } 1689 tl->xfer = xfer; 1690 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1691 splx(s); 1692 if (firewire_debug > 1) 1693 printf("fw_get_tlabel: dst=%d tl=%d\n", 1694 xfer->dst, label); 1695 return(label); 1696 } 1697 } 1698 splx(s); 1699 1700 printf("fw_get_tlabel: no free tlabel\n"); 1701 return(-1); 1702} 1703 1704/* 1705 * Generic packet receving process. 1706 */ 1707void 1708fw_rcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int sub, u_int off, u_int spd) 1709{ 1710 struct fw_pkt *fp, *resfp; 1711 struct fw_xfer *xfer; 1712 struct fw_bind *bind; 1713 struct firewire_softc *sc; 1714 int s; 1715#if 0 1716 { 1717 u_int32_t *qld; 1718 int i; 1719 qld = (u_int32_t *)buf; 1720 printf("spd %d len:%d\n", spd, len); 1721 for( i = 0 ; i <= len && i < 32; i+= 4){ 1722 printf("0x%08x ", ntohl(qld[i/4])); 1723 if((i % 16) == 15) printf("\n"); 1724 } 1725 if((i % 16) != 15) printf("\n"); 1726 } 1727#endif 1728 fp = (struct fw_pkt *)(buf + off); 1729 switch(fp->mode.common.tcode){ 1730 case FWTCODE_WRES: 1731 case FWTCODE_RRESQ: 1732 case FWTCODE_RRESB: 1733 case FWTCODE_LRES: 1734 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1735 fp->mode.hdr.tlrt >> 2); 1736 if(xfer == NULL) { 1737 printf("fw_rcv: unknown response " 1738 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n", 1739 fp->mode.common.tcode, 1740 ntohs(fp->mode.hdr.src), 1741 fp->mode.hdr.tlrt >> 2, 1742 fp->mode.hdr.tlrt & 3, 1743 fp->mode.rresq.data); 1744#if 1 1745 printf("try ad-hoc work around!!\n"); 1746 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1747 (fp->mode.hdr.tlrt >> 2)^3); 1748 if (xfer == NULL) { 1749 printf("no use...\n"); 1750 goto err; 1751 } 1752#else 1753 goto err; 1754#endif 1755 } 1756 switch(xfer->act_type){ 1757 case FWACT_XFER: 1758 if((xfer->sub >= 0) && 1759 ((fc->ir[xfer->sub]->flag & FWXFERQ_MODEMASK ) == 0)){ 1760 xfer->resp = EINVAL; 1761 fw_xfer_done(xfer); 1762 goto err; 1763 } 1764 xfer->recv.len = len; 1765 xfer->recv.off = off; 1766 xfer->recv.buf = buf; 1767 xfer->resp = 0; 1768 fw_xfer_done(xfer); 1769 return; 1770 break; 1771 case FWACT_CH: 1772 default: 1773 goto err; 1774 break; 1775 } 1776 break; 1777 case FWTCODE_WREQQ: 1778 case FWTCODE_WREQB: 1779 case FWTCODE_RREQQ: 1780 case FWTCODE_RREQB: 1781 case FWTCODE_LREQ: 1782 bind = fw_bindlookup(fc, ntohs(fp->mode.rreqq.dest_hi), 1783 ntohl(fp->mode.rreqq.dest_lo)); 1784 if(bind == NULL){ 1785#if __FreeBSD_version >= 500000 1786 printf("Unknown service addr 0x%08x:0x%08x tcode=%x\n src=0x%x", 1787#else 1788 printf("Unknown service addr 0x%08x:0x%08lx tcode=%x src=0x%x\n", 1789#endif 1790 ntohs(fp->mode.rreqq.dest_hi), 1791 ntohl(fp->mode.rreqq.dest_lo), 1792 fp->mode.common.tcode, 1793 fp->mode.hdr.src); 1794 if (fc->status == FWBUSRESET) { 1795 printf("fw_rcv: cannot respond(bus reset)!\n"); 1796 goto err; 1797 } 1798 xfer = fw_xfer_alloc(M_FWXFER); 1799 if(xfer == NULL){ 1800 return; 1801 } 1802 xfer->spd = spd; 1803 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1804 resfp = (struct fw_pkt *)xfer->send.buf; 1805 switch(fp->mode.common.tcode){ 1806 case FWTCODE_WREQQ: 1807 case FWTCODE_WREQB: 1808 resfp->mode.hdr.tcode = FWTCODE_WRES; 1809 xfer->send.len = 12; 1810 break; 1811 case FWTCODE_RREQQ: 1812 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1813 xfer->send.len = 16; 1814 break; 1815 case FWTCODE_RREQB: 1816 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1817 xfer->send.len = 16; 1818 break; 1819 case FWTCODE_LREQ: 1820 resfp->mode.hdr.tcode = FWTCODE_LRES; 1821 xfer->send.len = 16; 1822 break; 1823 } 1824 resfp->mode.hdr.dst = fp->mode.hdr.src; 1825 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1826 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1827 resfp->mode.rresb.rtcode = 7; 1828 resfp->mode.rresb.extcode = 0; 1829 resfp->mode.rresb.len = 0; 1830/* 1831 xfer->act.hand = fw_asy_callback; 1832*/ 1833 xfer->act.hand = fw_xfer_free; 1834 if(fw_asyreq(fc, -1, xfer)){ 1835 fw_xfer_free( xfer); 1836 return; 1837 } 1838 goto err; 1839 } 1840 switch(bind->xfer->act_type){ 1841 case FWACT_XFER: 1842 xfer = fw_xfer_alloc(M_FWXFER); 1843 if(xfer == NULL) goto err; 1844 xfer->fc = bind->xfer->fc; 1845 xfer->sc = bind->xfer->sc; 1846 xfer->recv.buf = buf; 1847 xfer->recv.len = len; 1848 xfer->recv.off = off; 1849 xfer->spd = spd; 1850 xfer->act.hand = bind->xfer->act.hand; 1851 if (fc->status != FWBUSRESET) 1852 xfer->act.hand(xfer); 1853 else 1854 STAILQ_INSERT_TAIL(&fc->pending, xfer, link); 1855 return; 1856 break; 1857 case FWACT_CH: 1858 if(fc->ir[bind->xfer->sub]->queued >= 1859 fc->ir[bind->xfer->sub]->maxq){ 1860 device_printf(fc->bdev, 1861 "Discard a packet %x %d\n", 1862 bind->xfer->sub, 1863 fc->ir[bind->xfer->sub]->queued); 1864 goto err; 1865 } 1866 xfer = fw_xfer_alloc(M_FWXFER); 1867 if(xfer == NULL) goto err; 1868 xfer->recv.buf = buf; 1869 xfer->recv.len = len; 1870 xfer->recv.off = off; 1871 xfer->spd = spd; 1872 s = splfw(); 1873 fc->ir[bind->xfer->sub]->queued++; 1874 STAILQ_INSERT_TAIL(&fc->ir[bind->xfer->sub]->q, xfer, link); 1875 splx(s); 1876 1877 wakeup((caddr_t)fc->ir[bind->xfer->sub]); 1878 1879 return; 1880 break; 1881 default: 1882 goto err; 1883 break; 1884 } 1885 break; 1886 case FWTCODE_STREAM: 1887 { 1888 struct fw_xferq *xferq; 1889 1890 xferq = fc->ir[sub]; 1891#if 0 1892 printf("stream rcv dma %d len %d off %d spd %d\n", 1893 sub, len, off, spd); 1894#endif 1895 if(xferq->queued >= xferq->maxq) { 1896 printf("receive queue is full\n"); 1897 goto err; 1898 } 1899 xfer = fw_xfer_alloc(M_FWXFER); 1900 if(xfer == NULL) goto err; 1901 xfer->recv.buf = buf; 1902 xfer->recv.len = len; 1903 xfer->recv.off = off; 1904 xfer->spd = spd; 1905 s = splfw(); 1906 xferq->queued++; 1907 STAILQ_INSERT_TAIL(&xferq->q, xfer, link); 1908 splx(s); 1909 sc = device_get_softc(fc->bdev); 1910#if __FreeBSD_version >= 500000 1911 if (SEL_WAITING(&xferq->rsel)) 1912#else 1913 if (&xferq->rsel.si_pid != 0) 1914#endif 1915 selwakeup(&xferq->rsel); 1916 if (xferq->flag & FWXFERQ_WAKEUP) { 1917 xferq->flag &= ~FWXFERQ_WAKEUP; 1918 wakeup((caddr_t)xferq); 1919 } 1920 if (xferq->flag & FWXFERQ_HANDLER) { 1921 xferq->hand(xferq); 1922 } 1923 return; 1924 break; 1925 } 1926 default: 1927 printf("fw_rcv: unknow tcode\n"); 1928 break; 1929 } 1930err: 1931 free(buf, M_FW); 1932} 1933 1934/* 1935 * Post process for Bus Manager election process. 1936 */ 1937static void 1938fw_try_bmr_callback(struct fw_xfer *xfer) 1939{ 1940 struct fw_pkt *rfp; 1941 struct firewire_comm *fc; 1942 int bmr; 1943 1944 if (xfer == NULL) 1945 return; 1946 fc = xfer->fc; 1947 if (xfer->resp != 0) 1948 goto error; 1949 if (xfer->send.buf == NULL) 1950 goto error; 1951 if (xfer->recv.buf == NULL) 1952 goto error; 1953 rfp = (struct fw_pkt *)xfer->recv.buf; 1954 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE) 1955 goto error; 1956 1957 bmr = ntohl(rfp->mode.lres.payload[0]); 1958 if (bmr == 0x3f) 1959 bmr = fc->nodeid; 1960 1961 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 1962 device_printf(fc->bdev, "new bus manager %d ", 1963 CSRARC(fc, BUS_MGR_ID)); 1964 if(bmr == fc->nodeid){ 1965 printf("(me)\n"); 1966 fw_bmr(fc); 1967 }else{ 1968 printf("\n"); 1969 } 1970error: 1971 fw_xfer_free(xfer); 1972} 1973 1974/* 1975 * To candidate Bus Manager election process. 1976 */ 1977static void 1978fw_try_bmr(void *arg) 1979{ 1980 struct fw_xfer *xfer; 1981 struct firewire_comm *fc = (struct firewire_comm *)arg; 1982 struct fw_pkt *fp; 1983 int err = 0; 1984 1985 xfer = fw_xfer_alloc(M_FWXFER); 1986 if(xfer == NULL){ 1987 return; 1988 } 1989 xfer->send.len = 24; 1990 xfer->spd = 0; 1991 xfer->send.buf = malloc(24, M_FW, M_NOWAIT); 1992 if(xfer->send.buf == NULL){ 1993 fw_xfer_free( xfer); 1994 return; 1995 } 1996 1997 fc->status = FWBUSMGRELECT; 1998 1999 xfer->send.off = 0; 2000 fp = (struct fw_pkt *)xfer->send.buf; 2001 fp->mode.lreq.dest_hi = htons(0xffff); 2002 fp->mode.lreq.tlrt = 0; 2003 fp->mode.lreq.tcode = FWTCODE_LREQ; 2004 fp->mode.lreq.pri = 0; 2005 fp->mode.lreq.src = 0; 2006 fp->mode.lreq.len = htons(8); 2007 fp->mode.lreq.extcode = htons(FW_LREQ_CMPSWAP); 2008 xfer->dst = FWLOCALBUS | fc->irm; 2009 fp->mode.lreq.dst = htons(xfer->dst); 2010 fp->mode.lreq.dest_lo = htonl(0xf0000000 | BUS_MGR_ID); 2011 fp->mode.lreq.payload[0] = htonl(0x3f); 2012 fp->mode.lreq.payload[1] = htonl(fc->nodeid); 2013 xfer->act_type = FWACT_XFER; 2014 xfer->act.hand = fw_try_bmr_callback; 2015 2016 err = fw_asyreq(fc, -1, xfer); 2017 if(err){ 2018 fw_xfer_free( xfer); 2019 return; 2020 } 2021 return; 2022} 2023 2024#ifdef FW_VMACCESS 2025/* 2026 * Software implementation for physical memory block access. 2027 * XXX:Too slow, usef for debug purpose only. 2028 */ 2029static void 2030fw_vmaccess(struct fw_xfer *xfer){ 2031 struct fw_pkt *rfp, *sfp = NULL; 2032 u_int32_t *ld = (u_int32_t *)(xfer->recv.buf + xfer->recv.off); 2033 2034 printf("vmaccess spd:%2x len:%03x %d data:%08x %08x %08x %08x\n", 2035 xfer->spd, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2036 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2037 if(xfer->resp != 0){ 2038 fw_xfer_free( xfer); 2039 return; 2040 } 2041 if(xfer->recv.buf == NULL){ 2042 fw_xfer_free( xfer); 2043 return; 2044 } 2045 rfp = (struct fw_pkt *)xfer->recv.buf; 2046 switch(rfp->mode.hdr.tcode){ 2047 /* XXX need fix for 64bit arch */ 2048 case FWTCODE_WREQB: 2049 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2050 xfer->send.len = 12; 2051 sfp = (struct fw_pkt *)xfer->send.buf; 2052 bcopy(rfp->mode.wreqb.payload, 2053 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2054 sfp->mode.wres.tcode = FWTCODE_WRES; 2055 sfp->mode.wres.rtcode = 0; 2056 break; 2057 case FWTCODE_WREQQ: 2058 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2059 xfer->send.len = 12; 2060 sfp->mode.wres.tcode = FWTCODE_WRES; 2061 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2062 sfp->mode.wres.rtcode = 0; 2063 break; 2064 case FWTCODE_RREQB: 2065 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2066 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2067 sfp = (struct fw_pkt *)xfer->send.buf; 2068 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2069 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2070 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2071 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2072 sfp->mode.rresb.rtcode = 0; 2073 sfp->mode.rresb.extcode = 0; 2074 break; 2075 case FWTCODE_RREQQ: 2076 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2077 xfer->send.len = 16; 2078 sfp = (struct fw_pkt *)xfer->send.buf; 2079 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2080 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2081 sfp->mode.rresb.rtcode = 0; 2082 break; 2083 default: 2084 fw_xfer_free( xfer); 2085 return; 2086 } 2087 xfer->send.off = 0; 2088 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2089 xfer->dst = ntohs(rfp->mode.hdr.src); 2090 xfer->act.hand = fw_xfer_free; 2091 xfer->retry_req = fw_asybusy; 2092 2093 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2094 sfp->mode.hdr.pri = 0; 2095 2096 fw_asyreq(xfer->fc, -1, xfer); 2097/**/ 2098 return; 2099} 2100#endif 2101 2102/* 2103 * CRC16 check-sum for IEEE1394 register blocks. 2104 */ 2105u_int16_t 2106fw_crc16(u_int32_t *ptr, u_int32_t len){ 2107 u_int32_t i, sum, crc = 0; 2108 int shift; 2109 len = (len + 3) & ~3; 2110 for(i = 0 ; i < len ; i+= 4){ 2111 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2112 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2113 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2114 } 2115 crc &= 0xffff; 2116 } 2117 return((u_int16_t) crc); 2118} 2119 2120static int 2121fw_bmr(struct firewire_comm *fc) 2122{ 2123 struct fw_device fwdev; 2124 int cmstr; 2125 2126 /* XXX Assume that the current root node is cycle master capable */ 2127 cmstr = fc->max_node; 2128 /* If I am the bus manager, optimize gapcount */ 2129 if(fc->max_hop <= MAX_GAPHOP ){ 2130 fw_phy_config(fc, (fc->max_node > 0)?cmstr:-1, 2131 gap_cnt[fc->max_hop]); 2132 } 2133 /* If we are the cycle master, nothing to do */ 2134 if (cmstr == fc->nodeid) 2135 return 0; 2136 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2137 bzero(&fwdev, sizeof(fwdev)); 2138 fwdev.fc = fc; 2139 fwdev.dst = cmstr; 2140 fwdev.speed = 0; 2141 fwdev.maxrec = 8; /* 512 */ 2142 fwdev.status = FWDEVINIT; 2143 /* Set cmstr bit on the cycle master */ 2144 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2145 0xffff, 0xf0000000 | STATE_SET, 1 << 16, 2146 fw_asy_callback_free); 2147 2148 return 0; 2149} 2150 2151DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); 2152MODULE_VERSION(firewire, 1); 2153