firewire.c revision 111078
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 111078 2003-02-18 10:56:00Z 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#if __FreeBSD_version >= 500000 427#define CALLOUT_INIT(x) callout_init(x, 0 /* mpsafe */) 428#else 429#define CALLOUT_INIT(x) callout_init(x) 430#endif 431 CALLOUT_INIT(&sc->fc->timeout_callout); 432 CALLOUT_INIT(&sc->fc->bmr_callout); 433 CALLOUT_INIT(&sc->fc->retry_probe_callout); 434 CALLOUT_INIT(&sc->fc->busprobe_callout); 435 436 callout_reset(&sc->fc->timeout_callout, hz, 437 (void *)firewire_watchdog, (void *)sc->fc); 438 439 /* Locate our children */ 440 bus_generic_probe(dev); 441 442 /* launch attachement of the added children */ 443 bus_generic_attach(dev); 444 445#if 1 446 /* bus_reset */ 447 fc->ibr(fc); 448#endif 449 450 return 0; 451} 452 453/* 454 * Attach it as child. 455 */ 456static device_t 457firewire_add_child(device_t dev, int order, const char *name, int unit) 458{ 459 device_t child; 460 struct firewire_softc *sc; 461 462 sc = (struct firewire_softc *)device_get_softc(dev); 463 child = device_add_child(dev, name, unit); 464 if (child) { 465 device_set_ivars(child, sc->fc); 466 device_probe_and_attach(child); 467 } 468 469 return child; 470} 471 472/* 473 * Dettach it. 474 */ 475static int 476firewire_detach( device_t dev ) 477{ 478 struct firewire_softc *sc; 479 struct csrdir *csrd, *next; 480 struct fw_device *fwdev, *fwdev_next; 481 482 sc = (struct firewire_softc *)device_get_softc(dev); 483 484 bus_generic_detach(dev); 485 486 callout_stop(&sc->fc->timeout_callout); 487 callout_stop(&sc->fc->bmr_callout); 488 callout_stop(&sc->fc->retry_probe_callout); 489 callout_stop(&sc->fc->busprobe_callout); 490 491#if __FreeBSD_version >= 500000 492 destroy_dev(sc->dev); 493#else 494 { 495 int j; 496 for (j = 0 ; j < sc->fc->nisodma + 1; j++) 497 destroy_dev(sc->dev[j]); 498 } 499#endif 500 /* XXX xfree_free and untimeout on all xfers */ 501 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 502 fwdev = fwdev_next) { 503 fwdev_next = STAILQ_NEXT(fwdev, link); 504 free(fwdev, M_FW); 505 } 506 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 507 next = SLIST_NEXT(csrd, link); 508 free(csrd, M_FW); 509 } 510 free(sc->fc->topology_map, M_FW); 511 free(sc->fc->speed_map, M_FW); 512 return(0); 513} 514#if 0 515static int 516firewire_shutdown( device_t dev ) 517{ 518 return 0; 519} 520#endif 521 522 523static void 524fw_xferq_drain(struct fw_xferq *xferq) 525{ 526 struct fw_xfer *xfer; 527 528 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 529 STAILQ_REMOVE_HEAD(&xferq->q, link); 530 xfer->resp = EAGAIN; 531 switch (xfer->act_type) { 532 case FWACT_XFER: 533 fw_xfer_done(xfer); 534 break; 535 default: 536 /* ??? */ 537 fw_xfer_free(xfer); 538 break; 539 } 540 } 541} 542 543void 544fw_drain_txq(struct firewire_comm *fc) 545{ 546 int i; 547 548 fw_xferq_drain(fc->atq); 549 fw_xferq_drain(fc->ats); 550 for(i = 0; i < fc->nisodma; i++) 551 fw_xferq_drain(fc->it[i]); 552} 553 554/* 555 * Called after bus reset. 556 */ 557void 558fw_busreset(struct firewire_comm *fc) 559{ 560 int i; 561 562 switch(fc->status){ 563 case FWBUSMGRELECT: 564 callout_stop(&fc->bmr_callout); 565 break; 566 default: 567 break; 568 } 569 fc->status = FWBUSRESET; 570 CSRARC(fc, STATE_CLEAR) 571 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 572 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 573 CSRARC(fc, NODE_IDS) = 0x3f; 574 575 CSRARC(fc, TOPO_MAP + 8) = 0; 576 fc->irm = -1; 577 578 fc->max_node = -1; 579 580 for(i = 2; i < 0x100/4 - 2 ; i++){ 581 CSRARC(fc, SPED_MAP + i * 4) = 0; 582 } 583 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 584 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 585 CSRARC(fc, RESET_START) = 0; 586 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 587 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 588 CSRARC(fc, CYCLE_TIME) = 0x0; 589 CSRARC(fc, BUS_TIME) = 0x0; 590 CSRARC(fc, BUS_MGR_ID) = 0x3f; 591 CSRARC(fc, BANDWIDTH_AV) = 4915; 592 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 593 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 594 CSRARC(fc, IP_CHANNELS) = (1 << 31); 595 596 CSRARC(fc, CONF_ROM) = 0x04 << 24; 597 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 598 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 599 1 << 28 | 0xff << 16 | 0x09 << 8; 600 CSRARC(fc, CONF_ROM + 0xc) = 0; 601 602/* DV depend CSRs see blue book */ 603 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 604 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 605 606 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 607 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 608} 609 610/* Call once after reboot */ 611void fw_init(struct firewire_comm *fc) 612{ 613 int i; 614 struct csrdir *csrd; 615#ifdef FW_VMACCESS 616 struct fw_xfer *xfer; 617 struct fw_bind *fwb; 618#endif 619 620 fc->max_asyretry = FW_MAXASYRTY; 621 622 fc->arq->queued = 0; 623 fc->ars->queued = 0; 624 fc->atq->queued = 0; 625 fc->ats->queued = 0; 626 627 fc->arq->psize = PAGE_SIZE; 628 fc->ars->psize = PAGE_SIZE; 629 fc->atq->psize = 0; 630 fc->ats->psize = 0; 631 632 633 fc->arq->buf = NULL; 634 fc->ars->buf = NULL; 635 fc->atq->buf = NULL; 636 fc->ats->buf = NULL; 637 638 fc->arq->flag = FWXFERQ_PACKET; 639 fc->ars->flag = FWXFERQ_PACKET; 640 fc->atq->flag = FWXFERQ_PACKET; 641 fc->ats->flag = FWXFERQ_PACKET; 642 643 STAILQ_INIT(&fc->atq->q); 644 STAILQ_INIT(&fc->ats->q); 645 646 for( i = 0 ; i < fc->nisodma ; i ++ ){ 647 fc->it[i]->queued = 0; 648 fc->ir[i]->queued = 0; 649 650 fc->it[i]->start = NULL; 651 fc->ir[i]->start = NULL; 652 653 fc->it[i]->buf = NULL; 654 fc->ir[i]->buf = NULL; 655 656 fc->it[i]->flag = FWXFERQ_STREAM; 657 fc->ir[i]->flag = FWXFERQ_STREAM; 658 659 STAILQ_INIT(&fc->it[i]->q); 660 STAILQ_INIT(&fc->ir[i]->q); 661 662 STAILQ_INIT(&fc->it[i]->binds); 663 STAILQ_INIT(&fc->ir[i]->binds); 664 } 665 666 fc->arq->maxq = FWMAXQUEUE; 667 fc->ars->maxq = FWMAXQUEUE; 668 fc->atq->maxq = FWMAXQUEUE; 669 fc->ats->maxq = FWMAXQUEUE; 670 671 for( i = 0 ; i < fc->nisodma ; i++){ 672 fc->ir[i]->maxq = FWMAXQUEUE; 673 fc->it[i]->maxq = FWMAXQUEUE; 674 } 675/* Initialize csr registers */ 676 fc->topology_map = (struct fw_topology_map *)malloc( 677 sizeof(struct fw_topology_map), 678 M_FW, M_NOWAIT | M_ZERO); 679 fc->speed_map = (struct fw_speed_map *)malloc( 680 sizeof(struct fw_speed_map), 681 M_FW, M_NOWAIT | M_ZERO); 682 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 683 CSRARC(fc, TOPO_MAP + 4) = 1; 684 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 685 CSRARC(fc, SPED_MAP + 4) = 1; 686 687 STAILQ_INIT(&fc->devices); 688 STAILQ_INIT(&fc->pending); 689 690/* Initialize csr ROM work space */ 691 SLIST_INIT(&fc->ongocsr); 692 SLIST_INIT(&fc->csrfree); 693 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 694 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 695 if(csrd == NULL) break; 696 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 697 } 698 699/* Initialize Async handlers */ 700 STAILQ_INIT(&fc->binds); 701 for( i = 0 ; i < 0x40 ; i++){ 702 STAILQ_INIT(&fc->tlabels[i]); 703 } 704 705/* DV depend CSRs see blue book */ 706#if 0 707 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 708 CSRARC(fc, oPCR) = 0x8000007a; 709 for(i = 4 ; i < 0x7c/4 ; i+=4){ 710 CSRARC(fc, i + oPCR) = 0x8000007a; 711 } 712 713 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 714 CSRARC(fc, iPCR) = 0x803f0000; 715 for(i = 4 ; i < 0x7c/4 ; i+=4){ 716 CSRARC(fc, i + iPCR) = 0x0; 717 } 718#endif 719 720 721#ifdef FW_VMACCESS 722 xfer = fw_xfer_alloc(); 723 if(xfer == NULL) return; 724 725 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 726 if(fwb == NULL){ 727 fw_xfer_free(xfer); 728 } 729 xfer->act.hand = fw_vmaccess; 730 xfer->act_type = FWACT_XFER; 731 xfer->fc = fc; 732 xfer->sc = NULL; 733 734 fwb->start_hi = 0x2; 735 fwb->start_lo = 0; 736 fwb->addrlen = 0xffffffff; 737 fwb->xfer = xfer; 738 fw_bindadd(fc, fwb); 739#endif 740} 741 742/* 743 * To lookup binded process from IEEE1394 address. 744 */ 745struct fw_bind * 746fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 747{ 748 struct fw_bind *tfw; 749 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 750 tfw = STAILQ_NEXT(tfw, fclist)){ 751 if(tfw->xfer->act_type != FWACT_NULL && 752 tfw->start_hi == dest_hi && 753 tfw->start_lo <= dest_lo && 754 (tfw->start_lo + tfw->addrlen) > dest_lo){ 755 return(tfw); 756 } 757 } 758 return(NULL); 759} 760 761/* 762 * To bind IEEE1394 address block to process. 763 */ 764int 765fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 766{ 767 struct fw_bind *tfw, *tfw2 = NULL; 768 int err = 0; 769 tfw = STAILQ_FIRST(&fc->binds); 770 if(tfw == NULL){ 771 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 772 goto out; 773 } 774 if((tfw->start_hi > fwb->start_hi) || 775 (tfw->start_hi == fwb->start_hi && 776 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 777 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 778 goto out; 779 } 780 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 781 if((tfw->start_hi < fwb->start_hi) || 782 (tfw->start_hi == fwb->start_hi && 783 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 784 tfw2 = STAILQ_NEXT(tfw, fclist); 785 if(tfw2 == NULL) 786 break; 787 if((tfw2->start_hi > fwb->start_hi) || 788 (tfw2->start_hi == fwb->start_hi && 789 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 790 break; 791 }else{ 792 err = EBUSY; 793 goto out; 794 } 795 } 796 } 797 if(tfw != NULL){ 798 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 799 }else{ 800 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 801 } 802out: 803 if(!err && fwb->xfer->act_type == FWACT_CH){ 804 STAILQ_INSERT_HEAD(&fc->ir[fwb->xfer->sub]->binds, fwb, chlist); 805 } 806 return err; 807} 808 809/* 810 * To free IEEE1394 address block. 811 */ 812int 813fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 814{ 815 int s; 816 817 s = splfw(); 818 /* shall we check the existance? */ 819 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 820 splx(s); 821 if (fwb->xfer) 822 fw_xfer_free(fwb->xfer); 823 824 return 0; 825} 826 827/* 828 * To free transaction label. 829 */ 830static void 831fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 832{ 833 struct tlabel *tl; 834 int s = splfw(); 835 836 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 837 tl = STAILQ_NEXT(tl, link)){ 838 if(tl->xfer == xfer){ 839 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 840 free(tl, M_FW); 841 splx(s); 842 return; 843 } 844 } 845 splx(s); 846 return; 847} 848 849/* 850 * To obtain XFER structure by transaction label. 851 */ 852static struct fw_xfer * 853fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 854{ 855 struct fw_xfer *xfer; 856 struct tlabel *tl; 857 int s = splfw(); 858 859 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 860 tl = STAILQ_NEXT(tl, link)){ 861 if(tl->xfer->dst == node){ 862 xfer = tl->xfer; 863 splx(s); 864 if (firewire_debug > 2) 865 printf("fw_tl2xfer: found tl=%d\n", tlabel); 866 return(xfer); 867 } 868 } 869 if (firewire_debug > 1) 870 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 871 splx(s); 872 return(NULL); 873} 874 875/* 876 * To allocate IEEE1394 XFER structure. 877 */ 878struct fw_xfer * 879fw_xfer_alloc(struct malloc_type *type) 880{ 881 struct fw_xfer *xfer; 882 883 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 884 if (xfer == NULL) 885 return xfer; 886 887 microtime(&xfer->tv); 888 xfer->sub = -1; 889 xfer->malloc = type; 890 891 return xfer; 892} 893 894/* 895 * IEEE1394 XFER post process. 896 */ 897void 898fw_xfer_done(struct fw_xfer *xfer) 899{ 900 if (xfer->act.hand == NULL) 901 return; 902 903#if XFER_TIMEOUT 904 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 905#endif 906 907 if (xfer->fc->status != FWBUSRESET) 908 xfer->act.hand(xfer); 909 else { 910 printf("fw_xfer_done: pending\n"); 911 if (xfer->fc != NULL) 912 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 913 else 914 panic("fw_xfer_done: why xfer->fc is NULL?"); 915 } 916} 917 918/* 919 * To free IEEE1394 XFER structure. 920 */ 921void 922fw_xfer_free( struct fw_xfer* xfer) 923{ 924 int s; 925 if(xfer == NULL ) return; 926 if(xfer->state == FWXF_INQ){ 927 printf("fw_xfer_free FWXF_INQ\n"); 928 s = splfw(); 929 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 930 xfer->q->queued --; 931 splx(s); 932 } 933 if(xfer->fc != NULL){ 934 if(xfer->state == FWXF_START){ 935#if 0 /* this could happen if we call fwohci_arcv() before fwohci_txd() */ 936 printf("fw_xfer_free FWXF_START\n"); 937#endif 938 s = splfw(); 939 xfer->q->drain(xfer->fc, xfer); 940 splx(s); 941 } 942 } 943 if(xfer->send.buf != NULL){ 944 free(xfer->send.buf, M_FW); 945 } 946 if(xfer->recv.buf != NULL){ 947 free(xfer->recv.buf, M_FW); 948 } 949 if(xfer->fc != NULL){ 950 fw_tl_free(xfer->fc, xfer); 951 } 952 free(xfer, xfer->malloc); 953} 954 955static void 956fw_asy_callback_free(struct fw_xfer *xfer) 957{ 958#if 0 959 printf("asyreq done state=%d resp=%d\n", 960 xfer->state, xfer->resp); 961#endif 962 fw_xfer_free(xfer); 963} 964 965/* 966 * To configure PHY. 967 */ 968static void 969fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 970{ 971 struct fw_xfer *xfer; 972 struct fw_pkt *fp; 973 974 fc->status = FWBUSPHYCONF; 975 976#if 0 977 DELAY(100000); 978#endif 979 xfer = fw_xfer_alloc(M_FWXFER); 980 xfer->send.len = 12; 981 xfer->send.off = 0; 982 xfer->fc = fc; 983 xfer->retry_req = fw_asybusy; 984 xfer->act.hand = fw_asy_callback_free; 985 986 xfer->send.buf = malloc(sizeof(u_int32_t), 987 M_FW, M_NOWAIT | M_ZERO); 988 fp = (struct fw_pkt *)xfer->send.buf; 989 fp->mode.ld[1] = 0; 990 if (root_node >= 0) 991 fp->mode.ld[1] |= htonl((root_node & 0x3f) << 24 | 1 << 23); 992 if (gap_count >= 0) 993 fp->mode.ld[1] |= htonl(1 << 22 | (gap_count & 0x3f) << 16); 994 fp->mode.ld[2] = ~fp->mode.ld[1]; 995/* XXX Dangerous, how to pass PHY packet to device driver */ 996 fp->mode.common.tcode |= FWTCODE_PHY; 997 998 if (firewire_debug) 999 printf("send phy_config root_node=%d gap_count=%d\n", 1000 root_node, gap_count); 1001 fw_asyreq(fc, -1, xfer); 1002} 1003 1004#if 0 1005/* 1006 * Dump self ID. 1007 */ 1008static void 1009fw_print_sid(u_int32_t sid) 1010{ 1011 union fw_self_id *s; 1012 s = (union fw_self_id *) &sid; 1013 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1014 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1015 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1016 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1017 s->p0.power_class, s->p0.port0, s->p0.port1, 1018 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1019} 1020#endif 1021 1022/* 1023 * To receive self ID. 1024 */ 1025void fw_sidrcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int off) 1026{ 1027 u_int32_t *p, *sid = (u_int32_t *)(buf + off); 1028 union fw_self_id *self_id; 1029 u_int i, j, node, c_port = 0, i_branch = 0; 1030 1031 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1032 fc->status = FWBUSINIT; 1033 fc->max_node = fc->nodeid & 0x3f; 1034 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1035 fc->status = FWBUSCYMELECT; 1036 fc->topology_map->crc_len = 2; 1037 fc->topology_map->generation ++; 1038 fc->topology_map->self_id_count = 0; 1039 fc->topology_map->node_count = 0; 1040 fc->speed_map->generation ++; 1041 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1042 self_id = &fc->topology_map->self_id[0]; 1043 for(i = 0; i < fc->sid_cnt; i ++){ 1044 if (sid[1] != ~sid[0]) { 1045 printf("fw_sidrcv: invalid self-id packet\n"); 1046 sid += 2; 1047 continue; 1048 } 1049 *self_id = *((union fw_self_id *)sid); 1050 fc->topology_map->crc_len++; 1051 if(self_id->p0.sequel == 0){ 1052 fc->topology_map->node_count ++; 1053 c_port = 0; 1054#if 0 1055 fw_print_sid(sid[0]); 1056#endif 1057 node = self_id->p0.phy_id; 1058 if(fc->max_node < node){ 1059 fc->max_node = self_id->p0.phy_id; 1060 } 1061 /* XXX I'm not sure this is the right speed_map */ 1062 fc->speed_map->speed[node][node] 1063 = self_id->p0.phy_speed; 1064 for (j = 0; j < node; j ++) { 1065 fc->speed_map->speed[j][node] 1066 = fc->speed_map->speed[node][j] 1067 = min(fc->speed_map->speed[j][j], 1068 self_id->p0.phy_speed); 1069 } 1070 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1071 (self_id->p0.link_active && self_id->p0.contender)) { 1072 fc->irm = self_id->p0.phy_id; 1073 } 1074 if(self_id->p0.port0 >= 0x2){ 1075 c_port++; 1076 } 1077 if(self_id->p0.port1 >= 0x2){ 1078 c_port++; 1079 } 1080 if(self_id->p0.port2 >= 0x2){ 1081 c_port++; 1082 } 1083 } 1084 if(c_port > 2){ 1085 i_branch += (c_port - 2); 1086 } 1087 sid += 2; 1088 self_id++; 1089 fc->topology_map->self_id_count ++; 1090 } 1091 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1092 /* CRC */ 1093 fc->topology_map->crc = fw_crc16( 1094 (u_int32_t *)&fc->topology_map->generation, 1095 fc->topology_map->crc_len * 4); 1096 fc->speed_map->crc = fw_crc16( 1097 (u_int32_t *)&fc->speed_map->generation, 1098 fc->speed_map->crc_len * 4); 1099 /* byteswap and copy to CSR */ 1100 p = (u_int32_t *)fc->topology_map; 1101 for (i = 0; i <= fc->topology_map->crc_len; i++) 1102 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1103 p = (u_int32_t *)fc->speed_map; 1104 CSRARC(fc, SPED_MAP) = htonl(*p++); 1105 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1106 /* don't byte-swap u_int8_t array */ 1107 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1108 1109 fc->max_hop = fc->max_node - i_branch; 1110#if 1 1111 printf(", maxhop <= %d", fc->max_hop); 1112#endif 1113 1114 if(fc->irm == -1 ){ 1115 printf(", Not found IRM capable node"); 1116 }else{ 1117 printf(", cable IRM = %d", fc->irm); 1118 if (fc->irm == fc->nodeid) 1119 printf(" (me)"); 1120 } 1121 printf("\n"); 1122 1123 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1124 if (fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)) { 1125 fc->status = FWBUSMGRDONE; 1126 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1127 } else { 1128 fc->status = FWBUSMGRELECT; 1129 callout_reset(&fc->bmr_callout, hz/8, 1130 (void *)fw_try_bmr, (void *)fc); 1131 } 1132 } else { 1133 fc->status = FWBUSMGRDONE; 1134#if 0 1135 device_printf(fc->bdev, "BMR = %x\n", 1136 CSRARC(fc, BUS_MGR_ID)); 1137#endif 1138 } 1139 free(buf, M_FW); 1140 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ 1141 /* I am BMGR */ 1142 fw_bmr(fc); 1143 } 1144 callout_reset(&fc->busprobe_callout, hz/4, 1145 (void *)fw_bus_probe, (void *)fc); 1146} 1147 1148/* 1149 * To probe devices on the IEEE1394 bus. 1150 */ 1151static void 1152fw_bus_probe(struct firewire_comm *fc) 1153{ 1154 int s; 1155 struct fw_device *fwdev, *next; 1156 1157 s = splfw(); 1158 fc->status = FWBUSEXPLORE; 1159 fc->retry_count = 0; 1160 1161/* 1162 * Invalidate all devices, just after bus reset. Devices 1163 * to be removed has not been seen longer time. 1164 */ 1165 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1166 next = STAILQ_NEXT(fwdev, link); 1167 if (fwdev->status != FWDEVINVAL) { 1168 fwdev->status = FWDEVINVAL; 1169 fwdev->rcnt = 0; 1170 } else if(fwdev->rcnt < FW_MAXDEVRCNT) { 1171 fwdev->rcnt ++; 1172 } else { 1173 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1174 free(fwdev, M_FW); 1175 } 1176 } 1177 fc->ongonode = 0; 1178 fc->ongoaddr = CSRROMOFF; 1179 fc->ongodev = NULL; 1180 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1181 fw_bus_explore(fc); 1182 splx(s); 1183} 1184 1185/* 1186 * To collect device informations on the IEEE1394 bus. 1187 */ 1188static void 1189fw_bus_explore(struct firewire_comm *fc ) 1190{ 1191 int err = 0; 1192 struct fw_device *fwdev, *pfwdev, *tfwdev; 1193 u_int32_t addr; 1194 struct fw_xfer *xfer; 1195 struct fw_pkt *fp; 1196 1197 if(fc->status != FWBUSEXPLORE) 1198 return; 1199 1200loop: 1201 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1202 1203 if(fc->ongonode > fc->max_node) goto done; 1204 if(fc->ongonode >= 0x3f) goto done; 1205 1206 /* check link */ 1207 /* XXX we need to check phy_id first */ 1208 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1209 if (firewire_debug) 1210 printf("node%d: link down\n", fc->ongonode); 1211 fc->ongonode++; 1212 goto loop; 1213 } 1214 1215 if(fc->ongoaddr <= CSRROMOFF && 1216 fc->ongoeui.hi == 0xffffffff && 1217 fc->ongoeui.lo == 0xffffffff ){ 1218 fc->ongoaddr = CSRROMOFF; 1219 addr = 0xf0000000 | fc->ongoaddr; 1220 }else if(fc->ongoeui.hi == 0xffffffff ){ 1221 fc->ongoaddr = CSRROMOFF + 0xc; 1222 addr = 0xf0000000 | fc->ongoaddr; 1223 }else if(fc->ongoeui.lo == 0xffffffff ){ 1224 fc->ongoaddr = CSRROMOFF + 0x10; 1225 addr = 0xf0000000 | fc->ongoaddr; 1226 }else if(fc->ongodev == NULL){ 1227 STAILQ_FOREACH(fwdev, &fc->devices, link) 1228 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1229 break; 1230 if(fwdev != NULL){ 1231 fwdev->dst = fc->ongonode; 1232 fwdev->status = FWDEVATTACHED; 1233 fc->ongonode++; 1234 fc->ongoaddr = CSRROMOFF; 1235 fc->ongodev = NULL; 1236 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1237 goto loop; 1238 } 1239 fwdev = malloc(sizeof(struct fw_device), M_FW, M_NOWAIT); 1240 if(fwdev == NULL) 1241 return; 1242 fwdev->fc = fc; 1243 fwdev->rommax = 0; 1244 fwdev->dst = fc->ongonode; 1245 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1246 fwdev->status = FWDEVINIT; 1247#if 0 1248 fwdev->speed = CSRARC(fc, SPED_MAP + 8 + fc->ongonode / 4) 1249 >> ((3 - (fc->ongonode % 4)) * 8); 1250#else 1251 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1252#endif 1253 1254 pfwdev = NULL; 1255 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1256 if (tfwdev->eui.hi > fwdev->eui.hi || 1257 (tfwdev->eui.hi == fwdev->eui.hi && 1258 tfwdev->eui.lo > fwdev->eui.lo)) 1259 break; 1260 pfwdev = tfwdev; 1261 } 1262 if (pfwdev == NULL) 1263 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1264 else 1265 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1266 1267 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1268 linkspeed[fwdev->speed], 1269 fc->ongoeui.hi, fc->ongoeui.lo); 1270 1271 fc->ongodev = fwdev; 1272 fc->ongoaddr = CSRROMOFF; 1273 addr = 0xf0000000 | fc->ongoaddr; 1274 }else{ 1275 addr = 0xf0000000 | fc->ongoaddr; 1276 } 1277#if 0 1278 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1279 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1280 fw_bus_explore_callback); 1281 if(xfer == NULL) goto done; 1282#else 1283 xfer = fw_xfer_alloc(M_FWXFER); 1284 if(xfer == NULL){ 1285 goto done; 1286 } 1287 xfer->send.len = 16; 1288 xfer->spd = 0; 1289 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1290 if(xfer->send.buf == NULL){ 1291 fw_xfer_free( xfer); 1292 return; 1293 } 1294 1295 xfer->send.off = 0; 1296 fp = (struct fw_pkt *)xfer->send.buf; 1297 fp->mode.rreqq.dest_hi = htons(0xffff); 1298 fp->mode.rreqq.tlrt = 0; 1299 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1300 fp->mode.rreqq.pri = 0; 1301 fp->mode.rreqq.src = 0; 1302 xfer->dst = FWLOCALBUS | fc->ongonode; 1303 fp->mode.rreqq.dst = htons(xfer->dst); 1304 fp->mode.rreqq.dest_lo = htonl(addr); 1305 xfer->act.hand = fw_bus_explore_callback; 1306 1307 if (firewire_debug) 1308 printf("node%d: explore addr=0x%x\n", 1309 fc->ongonode, fc->ongoaddr); 1310 err = fw_asyreq(fc, -1, xfer); 1311 if(err){ 1312 fw_xfer_free( xfer); 1313 return; 1314 } 1315#endif 1316 return; 1317done: 1318 /* fw_attach_devs */ 1319 fc->status = FWBUSEXPDONE; 1320 if (firewire_debug) 1321 printf("bus_explore done\n"); 1322 fw_attach_dev(fc); 1323 return; 1324 1325} 1326 1327/* Portable Async. request read quad */ 1328struct fw_xfer * 1329asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1330 u_int32_t addr_hi, u_int32_t addr_lo, 1331 void (*hand) __P((struct fw_xfer*))) 1332{ 1333 struct fw_xfer *xfer; 1334 struct fw_pkt *fp; 1335 int err; 1336 1337 xfer = fw_xfer_alloc(M_FWXFER); 1338 if(xfer == NULL){ 1339 return NULL; 1340 } 1341 xfer->send.len = 16; 1342 xfer->spd = spd; /* XXX:min(spd, fc->spd) */ 1343 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1344 if(xfer->send.buf == NULL){ 1345 fw_xfer_free( xfer); 1346 return NULL; 1347 } 1348 1349 xfer->send.off = 0; 1350 fp = (struct fw_pkt *)xfer->send.buf; 1351 fp->mode.rreqq.dest_hi = htons(addr_hi & 0xffff); 1352 if(tl & FWP_TL_VALID){ 1353 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1354 }else{ 1355 fp->mode.rreqq.tlrt = 0; 1356 } 1357 fp->mode.rreqq.tlrt |= rt & 0x3; 1358 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1359 fp->mode.rreqq.pri = 0; 1360 fp->mode.rreqq.src = 0; 1361 xfer->dst = addr_hi >> 16; 1362 fp->mode.rreqq.dst = htons(xfer->dst); 1363 fp->mode.rreqq.dest_lo = htonl(addr_lo); 1364 xfer->act.hand = hand; 1365 1366 err = fw_asyreq(fc, -1, xfer); 1367 if(err){ 1368 fw_xfer_free( xfer); 1369 return NULL; 1370 } 1371 return xfer; 1372} 1373 1374/* 1375 * Callback for the IEEE1394 bus information collection. 1376 */ 1377static void 1378fw_bus_explore_callback(struct fw_xfer *xfer) 1379{ 1380 struct firewire_comm *fc; 1381 struct fw_pkt *sfp,*rfp; 1382 struct csrhdr *chdr; 1383 struct csrdir *csrd; 1384 struct csrreg *csrreg; 1385 u_int32_t offset; 1386 1387 1388 if(xfer == NULL) { 1389 printf("xfer == NULL\n"); 1390 return; 1391 } 1392 fc = xfer->fc; 1393 1394 if (firewire_debug) 1395 printf("node%d: callback addr=0x%x\n", 1396 fc->ongonode, fc->ongoaddr); 1397 1398 if(xfer->resp != 0){ 1399 printf("node%d: resp=%d addr=0x%x\n", 1400 fc->ongonode, xfer->resp, fc->ongoaddr); 1401 fc->retry_count++; 1402 goto nextnode; 1403 } 1404 1405 if(xfer->send.buf == NULL){ 1406 printf("node%d: send.buf=NULL addr=0x%x\n", 1407 fc->ongonode, fc->ongoaddr); 1408 fc->retry_count++; 1409 goto nextnode; 1410 } 1411 sfp = (struct fw_pkt *)xfer->send.buf; 1412 1413 if(xfer->recv.buf == NULL){ 1414 printf("node%d: recv.buf=NULL addr=0x%x\n", 1415 fc->ongonode, fc->ongoaddr); 1416 fc->retry_count++; 1417 goto nextnode; 1418 } 1419 rfp = (struct fw_pkt *)xfer->recv.buf; 1420#if 0 1421 { 1422 u_int32_t *qld; 1423 int i; 1424 qld = (u_int32_t *)xfer->recv.buf; 1425 printf("len:%d\n", xfer->recv.len); 1426 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1427 printf("0x%08x ", ntohl(rfp->mode.ld[i/4])); 1428 if((i % 16) == 15) printf("\n"); 1429 } 1430 if((i % 16) != 15) printf("\n"); 1431 } 1432#endif 1433 if(fc->ongodev == NULL){ 1434 if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 | CSRROMOFF))){ 1435 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1436 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1437/* If CSR is minimal confinguration, more investgation is not needed. */ 1438 if(chdr->info_len == 1){ 1439 if (firewire_debug) 1440 printf("node%d: minimal config\n", 1441 fc->ongonode); 1442 goto nextnode; 1443 }else{ 1444 fc->ongoaddr = CSRROMOFF + 0xc; 1445 } 1446 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0xc)))){ 1447 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1448 fc->ongoaddr = CSRROMOFF + 0x10; 1449 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0x10)))){ 1450 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1451 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1452 if (firewire_debug) 1453 printf("node%d: eui64 is zero.\n", 1454 fc->ongonode); 1455 goto nextnode; 1456 } 1457 fc->ongoaddr = CSRROMOFF; 1458 } 1459 }else{ 1460 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1461 if(fc->ongoaddr > fc->ongodev->rommax){ 1462 fc->ongodev->rommax = fc->ongoaddr; 1463 } 1464 csrd = SLIST_FIRST(&fc->ongocsr); 1465 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1466 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1467 offset = CSRROMOFF; 1468 }else{ 1469 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1470 offset = csrd->off; 1471 } 1472 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1473 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1474 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1475 csrd = SLIST_FIRST(&fc->csrfree); 1476 if(csrd == NULL){ 1477 goto nextnode; 1478 }else{ 1479 csrd->ongoaddr = fc->ongoaddr; 1480 fc->ongoaddr += csrreg->val * 4; 1481 csrd->off = fc->ongoaddr; 1482 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1483 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1484 goto nextaddr; 1485 } 1486 } 1487 } 1488 fc->ongoaddr += 4; 1489 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1490 (fc->ongodev->rommax < 0x414)){ 1491 if(fc->ongodev->rommax <= 0x414){ 1492 csrd = SLIST_FIRST(&fc->csrfree); 1493 if(csrd == NULL) goto nextnode; 1494 csrd->off = fc->ongoaddr; 1495 csrd->ongoaddr = fc->ongoaddr; 1496 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1497 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1498 } 1499 goto nextaddr; 1500 } 1501 1502 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1503 if(csrd == NULL){ 1504 goto nextnode; 1505 }; 1506 fc->ongoaddr = csrd->ongoaddr + 4; 1507 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1508 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1509 csrd = SLIST_FIRST(&fc->ongocsr); 1510 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1511 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1512 offset = CSRROMOFF; 1513 }else{ 1514 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1515 offset = csrd->off; 1516 } 1517 } 1518 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1519 goto nextnode; 1520 } 1521 } 1522nextaddr: 1523 fw_xfer_free( xfer); 1524 fw_bus_explore(fc); 1525 return; 1526nextnode: 1527 fw_xfer_free( xfer); 1528 fc->ongonode++; 1529/* housekeeping work space */ 1530 fc->ongoaddr = CSRROMOFF; 1531 fc->ongodev = NULL; 1532 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1533 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1534 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1535 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1536 } 1537 fw_bus_explore(fc); 1538 return; 1539} 1540 1541/* 1542 * To obtain CSR register values. 1543 */ 1544u_int32_t 1545getcsrdata(struct fw_device *fwdev, u_int8_t key) 1546{ 1547 int i; 1548 struct csrhdr *chdr; 1549 struct csrreg *creg; 1550 chdr = (struct csrhdr *)&fwdev->csrrom[0]; 1551 for( i = chdr->info_len + 4; i <= fwdev->rommax - CSRROMOFF; i+=4){ 1552 creg = (struct csrreg *)&fwdev->csrrom[i/4]; 1553 if(creg->key == key){ 1554 return (u_int32_t)creg->val; 1555 } 1556 } 1557 return 0; 1558} 1559 1560/* 1561 * To attach sub-devices layer onto IEEE1394 bus. 1562 */ 1563static void 1564fw_attach_dev(struct firewire_comm *fc) 1565{ 1566 struct fw_device *fwdev; 1567 struct fw_xfer *xfer; 1568 int i, err; 1569 device_t *devlistp; 1570 int devcnt; 1571 struct firewire_dev_comm *fdc; 1572 u_int32_t spec, ver; 1573 1574 STAILQ_FOREACH(fwdev, &fc->devices, link) { 1575 if(fwdev->status == FWDEVINIT){ 1576 spec = getcsrdata(fwdev, CSRKEY_SPEC); 1577 if(spec == 0) 1578 continue; 1579 ver = getcsrdata(fwdev, CSRKEY_VER); 1580 if(ver == 0) 1581 continue; 1582 fwdev->maxrec = (fwdev->csrrom[2] >> 12) & 0xf; 1583 1584 device_printf(fc->bdev, "Device "); 1585 switch(spec){ 1586 case CSRVAL_ANSIT10: 1587 switch(ver){ 1588 case CSRVAL_T10SBP2: 1589 printf("SBP-II"); 1590 break; 1591 default: 1592 break; 1593 } 1594 break; 1595 case CSRVAL_1394TA: 1596 switch(ver){ 1597 case CSR_PROTAVC: 1598 printf("AV/C"); 1599 break; 1600 case CSR_PROTCAL: 1601 printf("CAL"); 1602 break; 1603 case CSR_PROTEHS: 1604 printf("EHS"); 1605 break; 1606 case CSR_PROTHAVI: 1607 printf("HAVi"); 1608 break; 1609 case CSR_PROTCAM104: 1610 printf("1394 Cam 1.04"); 1611 break; 1612 case CSR_PROTCAM120: 1613 printf("1394 Cam 1.20"); 1614 break; 1615 case CSR_PROTCAM130: 1616 printf("1394 Cam 1.30"); 1617 break; 1618 case CSR_PROTDPP: 1619 printf("1394 Direct print"); 1620 break; 1621 case CSR_PROTIICP: 1622 printf("Industrial & Instrument"); 1623 break; 1624 default: 1625 printf("unknown 1394TA"); 1626 break; 1627 } 1628 break; 1629 default: 1630 printf("unknown spec"); 1631 break; 1632 } 1633 fwdev->status = FWDEVATTACHED; 1634 printf("\n"); 1635 } 1636 } 1637 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1638 if( err != 0 ) 1639 return; 1640 for( i = 0 ; i < devcnt ; i++){ 1641 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1642 fdc = device_get_softc(devlistp[i]); 1643 if (fdc->post_explore != NULL) 1644 fdc->post_explore(fdc); 1645 } 1646 } 1647 free(devlistp, M_TEMP); 1648 1649 /* call pending handlers */ 1650 i = 0; 1651 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1652 STAILQ_REMOVE_HEAD(&fc->pending, link); 1653 i++; 1654 if (xfer->act.hand) 1655 xfer->act.hand(xfer); 1656 } 1657 if (i > 0) 1658 printf("fw_attach_dev: %d pending handlers called\n", i); 1659 if (fc->retry_count > 0) { 1660 printf("probe failed for %d node\n", fc->retry_count); 1661#if 0 1662 callout_reset(&fc->retry_probe_callout, hz*2, 1663 (void *)fc->ibr, (void *)fc); 1664#endif 1665 } 1666 return; 1667} 1668 1669/* 1670 * To allocate uniq transaction label. 1671 */ 1672static int 1673fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1674{ 1675 u_int i; 1676 struct tlabel *tl, *tmptl; 1677 int s; 1678 static u_int32_t label = 0; 1679 1680 s = splfw(); 1681 for( i = 0 ; i < 0x40 ; i ++){ 1682 label = (label + 1) & 0x3f; 1683 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1684 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1685 if(tmptl->xfer->dst == xfer->dst) break; 1686 } 1687 if(tmptl == NULL) { 1688 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1689 if (tl == NULL) { 1690 splx(s); 1691 return (-1); 1692 } 1693 tl->xfer = xfer; 1694 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1695 splx(s); 1696 if (firewire_debug > 1) 1697 printf("fw_get_tlabel: dst=%d tl=%d\n", 1698 xfer->dst, label); 1699 return(label); 1700 } 1701 } 1702 splx(s); 1703 1704 printf("fw_get_tlabel: no free tlabel\n"); 1705 return(-1); 1706} 1707 1708/* 1709 * Generic packet receving process. 1710 */ 1711void 1712fw_rcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int sub, u_int off, u_int spd) 1713{ 1714 struct fw_pkt *fp, *resfp; 1715 struct fw_xfer *xfer; 1716 struct fw_bind *bind; 1717 struct firewire_softc *sc; 1718 int s; 1719#if 0 1720 { 1721 u_int32_t *qld; 1722 int i; 1723 qld = (u_int32_t *)buf; 1724 printf("spd %d len:%d\n", spd, len); 1725 for( i = 0 ; i <= len && i < 32; i+= 4){ 1726 printf("0x%08x ", ntohl(qld[i/4])); 1727 if((i % 16) == 15) printf("\n"); 1728 } 1729 if((i % 16) != 15) printf("\n"); 1730 } 1731#endif 1732 fp = (struct fw_pkt *)(buf + off); 1733 switch(fp->mode.common.tcode){ 1734 case FWTCODE_WRES: 1735 case FWTCODE_RRESQ: 1736 case FWTCODE_RRESB: 1737 case FWTCODE_LRES: 1738 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1739 fp->mode.hdr.tlrt >> 2); 1740 if(xfer == NULL) { 1741 printf("fw_rcv: unknown response " 1742 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n", 1743 fp->mode.common.tcode, 1744 ntohs(fp->mode.hdr.src), 1745 fp->mode.hdr.tlrt >> 2, 1746 fp->mode.hdr.tlrt & 3, 1747 fp->mode.rresq.data); 1748#if 1 1749 printf("try ad-hoc work around!!\n"); 1750 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1751 (fp->mode.hdr.tlrt >> 2)^3); 1752 if (xfer == NULL) { 1753 printf("no use...\n"); 1754 goto err; 1755 } 1756#else 1757 goto err; 1758#endif 1759 } 1760 switch(xfer->act_type){ 1761 case FWACT_XFER: 1762 if((xfer->sub >= 0) && 1763 ((fc->ir[xfer->sub]->flag & FWXFERQ_MODEMASK ) == 0)){ 1764 xfer->resp = EINVAL; 1765 fw_xfer_done(xfer); 1766 goto err; 1767 } 1768 xfer->recv.len = len; 1769 xfer->recv.off = off; 1770 xfer->recv.buf = buf; 1771 xfer->resp = 0; 1772 fw_xfer_done(xfer); 1773 return; 1774 break; 1775 case FWACT_CH: 1776 default: 1777 goto err; 1778 break; 1779 } 1780 break; 1781 case FWTCODE_WREQQ: 1782 case FWTCODE_WREQB: 1783 case FWTCODE_RREQQ: 1784 case FWTCODE_RREQB: 1785 case FWTCODE_LREQ: 1786 bind = fw_bindlookup(fc, ntohs(fp->mode.rreqq.dest_hi), 1787 ntohl(fp->mode.rreqq.dest_lo)); 1788 if(bind == NULL){ 1789#if __FreeBSD_version >= 500000 1790 printf("Unknown service addr 0x%08x:0x%08x tcode=%x\n", 1791#else 1792 printf("Unknown service addr 0x%08x:0x%08lx tcode=%x\n", 1793#endif 1794 ntohs(fp->mode.rreqq.dest_hi), 1795 ntohl(fp->mode.rreqq.dest_lo), 1796 fp->mode.common.tcode); 1797 if (fc->status == FWBUSRESET) { 1798 printf("fw_rcv: cannot respond(bus reset)!\n"); 1799 goto err; 1800 } 1801 xfer = fw_xfer_alloc(M_FWXFER); 1802 if(xfer == NULL){ 1803 return; 1804 } 1805 xfer->spd = spd; 1806 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1807 resfp = (struct fw_pkt *)xfer->send.buf; 1808 switch(fp->mode.common.tcode){ 1809 case FWTCODE_WREQQ: 1810 case FWTCODE_WREQB: 1811 resfp->mode.hdr.tcode = FWTCODE_WRES; 1812 xfer->send.len = 12; 1813 break; 1814 case FWTCODE_RREQQ: 1815 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1816 xfer->send.len = 16; 1817 break; 1818 case FWTCODE_RREQB: 1819 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1820 xfer->send.len = 16; 1821 break; 1822 case FWTCODE_LREQ: 1823 resfp->mode.hdr.tcode = FWTCODE_LRES; 1824 xfer->send.len = 16; 1825 break; 1826 } 1827 resfp->mode.hdr.dst = fp->mode.hdr.src; 1828 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1829 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1830 resfp->mode.rresb.rtcode = 7; 1831 resfp->mode.rresb.extcode = 0; 1832 resfp->mode.rresb.len = 0; 1833/* 1834 xfer->act.hand = fw_asy_callback; 1835*/ 1836 xfer->act.hand = fw_xfer_free; 1837 if(fw_asyreq(fc, -1, xfer)){ 1838 fw_xfer_free( xfer); 1839 return; 1840 } 1841 goto err; 1842 } 1843 switch(bind->xfer->act_type){ 1844 case FWACT_XFER: 1845 xfer = fw_xfer_alloc(M_FWXFER); 1846 if(xfer == NULL) goto err; 1847 xfer->fc = bind->xfer->fc; 1848 xfer->sc = bind->xfer->sc; 1849 xfer->recv.buf = buf; 1850 xfer->recv.len = len; 1851 xfer->recv.off = off; 1852 xfer->spd = spd; 1853 xfer->act.hand = bind->xfer->act.hand; 1854 if (fc->status != FWBUSRESET) 1855 xfer->act.hand(xfer); 1856 else 1857 STAILQ_INSERT_TAIL(&fc->pending, xfer, link); 1858 return; 1859 break; 1860 case FWACT_CH: 1861 if(fc->ir[bind->xfer->sub]->queued >= 1862 fc->ir[bind->xfer->sub]->maxq){ 1863 device_printf(fc->bdev, 1864 "Discard a packet %x %d\n", 1865 bind->xfer->sub, 1866 fc->ir[bind->xfer->sub]->queued); 1867 goto err; 1868 } 1869 xfer = fw_xfer_alloc(M_FWXFER); 1870 if(xfer == NULL) goto err; 1871 xfer->recv.buf = buf; 1872 xfer->recv.len = len; 1873 xfer->recv.off = off; 1874 xfer->spd = spd; 1875 s = splfw(); 1876 fc->ir[bind->xfer->sub]->queued++; 1877 STAILQ_INSERT_TAIL(&fc->ir[bind->xfer->sub]->q, xfer, link); 1878 splx(s); 1879 1880 wakeup((caddr_t)fc->ir[bind->xfer->sub]); 1881 1882 return; 1883 break; 1884 default: 1885 goto err; 1886 break; 1887 } 1888 break; 1889 case FWTCODE_STREAM: 1890 { 1891 struct fw_xferq *xferq; 1892 1893 xferq = fc->ir[sub]; 1894#if 0 1895 printf("stream rcv dma %d len %d off %d spd %d\n", 1896 sub, len, off, spd); 1897#endif 1898 if(xferq->queued >= xferq->maxq) { 1899 printf("receive queue is full\n"); 1900 goto err; 1901 } 1902 xfer = fw_xfer_alloc(M_FWXFER); 1903 if(xfer == NULL) goto err; 1904 xfer->recv.buf = buf; 1905 xfer->recv.len = len; 1906 xfer->recv.off = off; 1907 xfer->spd = spd; 1908 s = splfw(); 1909 xferq->queued++; 1910 STAILQ_INSERT_TAIL(&xferq->q, xfer, link); 1911 splx(s); 1912 sc = device_get_softc(fc->bdev); 1913#if __FreeBSD_version >= 500000 1914 if (SEL_WAITING(&xferq->rsel)) 1915#else 1916 if (&xferq->rsel.si_pid != 0) 1917#endif 1918 selwakeup(&xferq->rsel); 1919 if (xferq->flag & FWXFERQ_WAKEUP) { 1920 xferq->flag &= ~FWXFERQ_WAKEUP; 1921 wakeup((caddr_t)xferq); 1922 } 1923 if (xferq->flag & FWXFERQ_HANDLER) { 1924 xferq->hand(xferq); 1925 } 1926 return; 1927 break; 1928 } 1929 default: 1930 printf("fw_rcv: unknow tcode\n"); 1931 break; 1932 } 1933err: 1934 free(buf, M_FW); 1935} 1936 1937/* 1938 * Post process for Bus Manager election process. 1939 */ 1940static void 1941fw_try_bmr_callback(struct fw_xfer *xfer) 1942{ 1943 struct fw_pkt *rfp; 1944 struct firewire_comm *fc; 1945 int bmr; 1946 1947 if (xfer == NULL) 1948 return; 1949 fc = xfer->fc; 1950 if (xfer->resp != 0) 1951 goto error; 1952 if (xfer->send.buf == NULL) 1953 goto error; 1954 if (xfer->recv.buf == NULL) 1955 goto error; 1956 rfp = (struct fw_pkt *)xfer->recv.buf; 1957 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE) 1958 goto error; 1959 1960 bmr = ntohl(rfp->mode.lres.payload[0]); 1961 if (bmr == 0x3f) 1962 bmr = fc->nodeid; 1963 1964 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 1965 device_printf(fc->bdev, "new bus manager %d ", 1966 CSRARC(fc, BUS_MGR_ID)); 1967 if(bmr == fc->nodeid){ 1968 printf("(me)\n"); 1969 fw_bmr(fc); 1970 }else{ 1971 printf("\n"); 1972 } 1973error: 1974 fw_xfer_free(xfer); 1975} 1976 1977/* 1978 * To candidate Bus Manager election process. 1979 */ 1980static void 1981fw_try_bmr(void *arg) 1982{ 1983 struct fw_xfer *xfer; 1984 struct firewire_comm *fc = (struct firewire_comm *)arg; 1985 struct fw_pkt *fp; 1986 int err = 0; 1987 1988 xfer = fw_xfer_alloc(M_FWXFER); 1989 if(xfer == NULL){ 1990 return; 1991 } 1992 xfer->send.len = 24; 1993 xfer->spd = 0; 1994 xfer->send.buf = malloc(24, M_FW, M_NOWAIT); 1995 if(xfer->send.buf == NULL){ 1996 fw_xfer_free( xfer); 1997 return; 1998 } 1999 2000 fc->status = FWBUSMGRELECT; 2001 2002 xfer->send.off = 0; 2003 fp = (struct fw_pkt *)xfer->send.buf; 2004 fp->mode.lreq.dest_hi = htons(0xffff); 2005 fp->mode.lreq.tlrt = 0; 2006 fp->mode.lreq.tcode = FWTCODE_LREQ; 2007 fp->mode.lreq.pri = 0; 2008 fp->mode.lreq.src = 0; 2009 fp->mode.lreq.len = htons(8); 2010 fp->mode.lreq.extcode = htons(FW_LREQ_CMPSWAP); 2011 xfer->dst = FWLOCALBUS | fc->irm; 2012 fp->mode.lreq.dst = htons(xfer->dst); 2013 fp->mode.lreq.dest_lo = htonl(0xf0000000 | BUS_MGR_ID); 2014 fp->mode.lreq.payload[0] = htonl(0x3f); 2015 fp->mode.lreq.payload[1] = htonl(fc->nodeid); 2016 xfer->act_type = FWACT_XFER; 2017 xfer->act.hand = fw_try_bmr_callback; 2018 2019 err = fw_asyreq(fc, -1, xfer); 2020 if(err){ 2021 fw_xfer_free( xfer); 2022 return; 2023 } 2024 return; 2025} 2026 2027#ifdef FW_VMACCESS 2028/* 2029 * Software implementation for physical memory block access. 2030 * XXX:Too slow, usef for debug purpose only. 2031 */ 2032static void 2033fw_vmaccess(struct fw_xfer *xfer){ 2034 struct fw_pkt *rfp, *sfp = NULL; 2035 u_int32_t *ld = (u_int32_t *)(xfer->recv.buf + xfer->recv.off); 2036 2037 printf("vmaccess spd:%2x len:%03x %d data:%08x %08x %08x %08x\n", 2038 xfer->spd, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2039 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2040 if(xfer->resp != 0){ 2041 fw_xfer_free( xfer); 2042 return; 2043 } 2044 if(xfer->recv.buf == NULL){ 2045 fw_xfer_free( xfer); 2046 return; 2047 } 2048 rfp = (struct fw_pkt *)xfer->recv.buf; 2049 switch(rfp->mode.hdr.tcode){ 2050 /* XXX need fix for 64bit arch */ 2051 case FWTCODE_WREQB: 2052 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2053 xfer->send.len = 12; 2054 sfp = (struct fw_pkt *)xfer->send.buf; 2055 bcopy(rfp->mode.wreqb.payload, 2056 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2057 sfp->mode.wres.tcode = FWTCODE_WRES; 2058 sfp->mode.wres.rtcode = 0; 2059 break; 2060 case FWTCODE_WREQQ: 2061 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2062 xfer->send.len = 12; 2063 sfp->mode.wres.tcode = FWTCODE_WRES; 2064 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2065 sfp->mode.wres.rtcode = 0; 2066 break; 2067 case FWTCODE_RREQB: 2068 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2069 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2070 sfp = (struct fw_pkt *)xfer->send.buf; 2071 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2072 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2073 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2074 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2075 sfp->mode.rresb.rtcode = 0; 2076 sfp->mode.rresb.extcode = 0; 2077 break; 2078 case FWTCODE_RREQQ: 2079 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2080 xfer->send.len = 16; 2081 sfp = (struct fw_pkt *)xfer->send.buf; 2082 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2083 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2084 sfp->mode.rresb.rtcode = 0; 2085 break; 2086 default: 2087 fw_xfer_free( xfer); 2088 return; 2089 } 2090 xfer->send.off = 0; 2091 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2092 xfer->dst = ntohs(rfp->mode.hdr.src); 2093 xfer->act.hand = fw_xfer_free; 2094 xfer->retry_req = fw_asybusy; 2095 2096 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2097 sfp->mode.hdr.pri = 0; 2098 2099 fw_asyreq(xfer->fc, -1, xfer); 2100/**/ 2101 return; 2102} 2103#endif 2104 2105/* 2106 * CRC16 check-sum for IEEE1394 register blocks. 2107 */ 2108u_int16_t 2109fw_crc16(u_int32_t *ptr, u_int32_t len){ 2110 u_int32_t i, sum, crc = 0; 2111 int shift; 2112 len = (len + 3) & ~3; 2113 for(i = 0 ; i < len ; i+= 4){ 2114 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2115 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2116 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2117 } 2118 crc &= 0xffff; 2119 } 2120 return((u_int16_t) crc); 2121} 2122 2123static int 2124fw_bmr(struct firewire_comm *fc) 2125{ 2126 struct fw_device fwdev; 2127 int cmstr; 2128 2129 /* XXX Assume that the current root node is cycle master capable */ 2130 cmstr = fc->max_node; 2131 /* If I am the bus manager, optimize gapcount */ 2132 if(fc->max_hop <= MAX_GAPHOP ){ 2133 fw_phy_config(fc, (fc->max_node > 0)?cmstr:-1, 2134 gap_cnt[fc->max_hop]); 2135 } 2136 /* If we are the cycle master, nothing to do */ 2137 if (cmstr == fc->nodeid) 2138 return 0; 2139 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2140 bzero(&fwdev, sizeof(fwdev)); 2141 fwdev.fc = fc; 2142 fwdev.dst = cmstr; 2143 fwdev.speed = 0; 2144 fwdev.maxrec = 8; /* 512 */ 2145 fwdev.status = FWDEVINIT; 2146 /* Set cmstr bit on the cycle master */ 2147 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2148 0xffff, 0xf0000000 | STATE_SET, 1 << 16, 2149 fw_asy_callback_free); 2150 2151 return 0; 2152} 2153 2154DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); 2155MODULE_VERSION(firewire, 1); 2156