firewire.c revision 114069
1/* 2 * Copyright (c) 2003 Hidetoshi Shimokawa 3 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the acknowledgement as bellow: 16 * 17 * This product includes software developed by K. Kobayashi and H. Shimokawa 18 * 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 25 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 * 34 * $FreeBSD: head/sys/dev/firewire/firewire.c 114069 2003-04-26 16:45:40Z simokawa $ 35 * 36 */ 37 38#include <sys/param.h> 39#include <sys/systm.h> 40#include <sys/types.h> 41#include <sys/mbuf.h> 42#include <sys/socket.h> 43#include <sys/socketvar.h> 44 45#include <sys/kernel.h> 46#include <sys/malloc.h> 47#include <sys/conf.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#include <machine/bus.h> 55 56#include <dev/firewire/firewire.h> 57#include <dev/firewire/firewirereg.h> 58#include <dev/firewire/fwmem.h> 59#include <dev/firewire/iec13213.h> 60#include <dev/firewire/iec68113.h> 61 62int firewire_debug=0, try_bmr=1; 63SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 64 "FireWire driver debug flag"); 65SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 66SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 67 "Try to be a bus manager"); 68 69MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 70MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 71 72#define FW_MAXASYRTY 4 73#define FW_MAXDEVRCNT 4 74 75devclass_t firewire_devclass; 76 77static int firewire_match __P((device_t)); 78static int firewire_attach __P((device_t)); 79static int firewire_detach __P((device_t)); 80#if 0 81static int firewire_shutdown __P((device_t)); 82#endif 83static device_t firewire_add_child __P((device_t, int, const char *, int)); 84static void fw_try_bmr __P((void *)); 85static void fw_try_bmr_callback __P((struct fw_xfer *)); 86static void fw_asystart __P((struct fw_xfer *)); 87static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *)); 88static void fw_bus_probe __P((struct firewire_comm *)); 89static void fw_bus_explore __P((struct firewire_comm *)); 90static void fw_bus_explore_callback __P((struct fw_xfer *)); 91static void fw_attach_dev __P((struct firewire_comm *)); 92#ifdef FW_VMACCESS 93static void fw_vmaccess __P((struct fw_xfer *)); 94#endif 95struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 96 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *)))); 97static int fw_bmr __P((struct firewire_comm *)); 98 99static device_method_t firewire_methods[] = { 100 /* Device interface */ 101 DEVMETHOD(device_probe, firewire_match), 102 DEVMETHOD(device_attach, firewire_attach), 103 DEVMETHOD(device_detach, firewire_detach), 104 DEVMETHOD(device_suspend, bus_generic_suspend), 105 DEVMETHOD(device_resume, bus_generic_resume), 106 DEVMETHOD(device_shutdown, bus_generic_shutdown), 107 108 /* Bus interface */ 109 DEVMETHOD(bus_add_child, firewire_add_child), 110 DEVMETHOD(bus_print_child, bus_generic_print_child), 111 112 { 0, 0 } 113}; 114char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"}; 115 116#define MAX_GAPHOP 16 117u_int gap_cnt[] = {1, 1, 4, 6, 9, 12, 14, 17, 118 20, 23, 25, 28, 31, 33, 36, 39, 42}; 119 120extern struct cdevsw firewire_cdevsw; 121 122static driver_t firewire_driver = { 123 "firewire", 124 firewire_methods, 125 sizeof(struct firewire_softc), 126}; 127 128/* 129 * Lookup fwdev by node id. 130 */ 131struct fw_device * 132fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 133{ 134 struct fw_device *fwdev; 135 int s; 136 137 s = splfw(); 138 STAILQ_FOREACH(fwdev, &fc->devices, link) 139 if (fwdev->dst == dst) 140 break; 141 splx(s); 142 143 if(fwdev == NULL) return NULL; 144 if(fwdev->status == FWDEVINVAL) return NULL; 145 return fwdev; 146} 147 148/* 149 * Lookup fwdev by EUI64. 150 */ 151struct fw_device * 152fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 153{ 154 struct fw_device *fwdev; 155 int s; 156 157 s = splfw(); 158 STAILQ_FOREACH(fwdev, &fc->devices, link) 159 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 160 break; 161 splx(s); 162 163 if(fwdev == NULL) return NULL; 164 if(fwdev->status == FWDEVINVAL) return NULL; 165 return fwdev; 166} 167 168/* 169 * Async. request procedure for userland application. 170 */ 171int 172fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 173{ 174 int err = 0; 175 struct fw_xferq *xferq; 176 int tl = 0, len; 177 struct fw_pkt *fp; 178 int tcode; 179 struct tcode_info *info; 180 181 if(xfer == NULL) return EINVAL; 182 if(xfer->send.len > MAXREC(fc->maxrec)){ 183 printf("send.len > maxrec\n"); 184 return EINVAL; 185 } 186 if(xfer->act.hand == NULL){ 187 printf("act.hand == NULL\n"); 188 return EINVAL; 189 } 190 fp = (struct fw_pkt *)xfer->send.buf; 191 192 tcode = fp->mode.common.tcode & 0xf; 193 info = &fc->tcode[tcode]; 194 if (info->flag == 0) { 195 printf("invalid tcode=%d\n", tcode); 196 return EINVAL; 197 } 198 if (info->flag & FWTI_REQ) 199 xferq = fc->atq; 200 else 201 xferq = fc->ats; 202 len = info->hdr_len; 203 if (info->flag & FWTI_BLOCK_STR) 204 len += fp->mode.stream.len; 205 else if (info->flag & FWTI_BLOCK_ASY) 206 len += fp->mode.rresb.len; 207 if( len > xfer->send.len ){ 208 printf("len(%d) > send.len(%d) (tcode=%d)\n", 209 len, xfer->send.len, tcode); 210 return EINVAL; 211 } 212 xfer->send.len = len; 213 214 if(xferq->start == NULL){ 215 printf("xferq->start == NULL\n"); 216 return EINVAL; 217 } 218 if(!(xferq->queued < xferq->maxq)){ 219 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 220 xferq->queued); 221 return EINVAL; 222 } 223 224 225 if (info->flag & FWTI_TLABEL) { 226 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 227 return EIO; 228 fp->mode.hdr.tlrt = tl << 2; 229 } 230 231 xfer->tl = tl; 232 xfer->resp = 0; 233 xfer->fc = fc; 234 xfer->q = xferq; 235 xfer->retry_req = fw_asybusy; 236 237 fw_asystart(xfer); 238 return err; 239} 240/* 241 * Wakeup blocked process. 242 */ 243void 244fw_asy_callback(struct fw_xfer *xfer){ 245 wakeup(xfer); 246 return; 247} 248/* 249 * Postpone to later retry. 250 */ 251void fw_asybusy(struct fw_xfer *xfer){ 252 printf("fw_asybusy\n"); 253/* 254 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 255*/ 256 DELAY(20000); 257 fw_asystart(xfer); 258 return; 259} 260 261/* 262 * Async. request with given xfer structure. 263 */ 264static void 265fw_asystart(struct fw_xfer *xfer) 266{ 267 struct firewire_comm *fc = xfer->fc; 268 int s; 269 if(xfer->retry++ >= fc->max_asyretry){ 270 device_printf(fc->bdev, "max_asyretry exceeded\n"); 271 xfer->resp = EBUSY; 272 xfer->state = FWXF_BUSY; 273 xfer->act.hand(xfer); 274 return; 275 } 276#if 0 /* XXX allow bus explore packets only after bus rest */ 277 if (fc->status < FWBUSEXPLORE) { 278 xfer->resp = EAGAIN; 279 xfer->state = FWXF_BUSY; 280 if (xfer->act.hand != NULL) 281 xfer->act.hand(xfer); 282 return; 283 } 284#endif 285 s = splfw(); 286 xfer->state = FWXF_INQ; 287 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 288 xfer->q->queued ++; 289 splx(s); 290 /* XXX just queue for mbuf */ 291 if (xfer->mbuf == NULL) 292 xfer->q->start(fc); 293 return; 294} 295 296static int 297firewire_match( device_t dev ) 298{ 299 device_set_desc(dev, "IEEE1394(FireWire) bus"); 300 return -140; 301} 302 303static void 304firewire_xfer_timeout(struct firewire_comm *fc) 305{ 306 struct fw_xfer *xfer; 307 struct tlabel *tl; 308 struct timeval tv; 309 struct timeval split_timeout; 310 int i, s; 311 312 split_timeout.tv_sec = 6; 313 split_timeout.tv_usec = 0; 314 315 microtime(&tv); 316 timevalsub(&tv, &split_timeout); 317 318 s = splfw(); 319 for (i = 0; i < 0x40; i ++) { 320 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 321 xfer = tl->xfer; 322 if (timevalcmp(&xfer->tv, &tv, >)) 323 /* the rests are newer than this */ 324 break; 325 device_printf(fc->bdev, 326 "split transaction timeout dst=0x%x tl=0x%x\n", 327 xfer->dst, i); 328 xfer->resp = ETIMEDOUT; 329 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 330 fw_xfer_done(xfer); 331 } 332 } 333 splx(s); 334} 335 336static void 337firewire_watchdog(void *arg) 338{ 339 struct firewire_comm *fc; 340 341 fc = (struct firewire_comm *)arg; 342 firewire_xfer_timeout(fc); 343 fc->timeout(fc); 344 callout_reset(&fc->timeout_callout, hz, 345 (void *)firewire_watchdog, (void *)fc); 346} 347 348/* 349 * The attach routine. 350 */ 351static int 352firewire_attach( device_t dev ) 353{ 354 int i, unitmask, mn; 355 struct firewire_softc *sc = device_get_softc(dev); 356 device_t pa = device_get_parent(dev); 357 struct firewire_comm *fc; 358 dev_t d; 359 360 fc = (struct firewire_comm *)device_get_softc(pa); 361 sc->fc = fc; 362 fc->status = -1; 363 364 unitmask = UNIT2MIN(device_get_unit(dev)); 365 366 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 367 for ( i = 0 ; i < fc->nisodma ; i++ ){ 368 mn = unitmask | i; 369 /* XXX device name should be improved */ 370 d = make_dev(&firewire_cdevsw, unit2minor(mn), 371 UID_ROOT, GID_OPERATOR, 0660, 372 "fw%x", mn); 373#if __FreeBSD_version >= 500000 374 if (i == 0) 375 sc->dev = d; 376 else 377 dev_depends(sc->dev, d); 378#else 379 sc->dev[i] = d; 380#endif 381 } 382 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG), 383 UID_ROOT, GID_OPERATOR, 0660, 384 "fwmem%d", device_get_unit(dev)); 385#if __FreeBSD_version >= 500000 386 dev_depends(sc->dev, d); 387#else 388 sc->dev[i] = d; 389#endif 390 CALLOUT_INIT(&sc->fc->timeout_callout); 391 CALLOUT_INIT(&sc->fc->bmr_callout); 392 CALLOUT_INIT(&sc->fc->retry_probe_callout); 393 CALLOUT_INIT(&sc->fc->busprobe_callout); 394 395 callout_reset(&sc->fc->timeout_callout, hz, 396 (void *)firewire_watchdog, (void *)sc->fc); 397 398 /* Locate our children */ 399 bus_generic_probe(dev); 400 401 /* launch attachement of the added children */ 402 bus_generic_attach(dev); 403 404 /* bus_reset */ 405 fc->ibr(fc); 406 407 return 0; 408} 409 410/* 411 * Attach it as child. 412 */ 413static device_t 414firewire_add_child(device_t dev, int order, const char *name, int unit) 415{ 416 device_t child; 417 struct firewire_softc *sc; 418 419 sc = (struct firewire_softc *)device_get_softc(dev); 420 child = device_add_child(dev, name, unit); 421 if (child) { 422 device_set_ivars(child, sc->fc); 423 device_probe_and_attach(child); 424 } 425 426 return child; 427} 428 429/* 430 * Dettach it. 431 */ 432static int 433firewire_detach( device_t dev ) 434{ 435 struct firewire_softc *sc; 436 struct csrdir *csrd, *next; 437 struct fw_device *fwdev, *fwdev_next; 438 439 sc = (struct firewire_softc *)device_get_softc(dev); 440 441 bus_generic_detach(dev); 442 443 callout_stop(&sc->fc->timeout_callout); 444 callout_stop(&sc->fc->bmr_callout); 445 callout_stop(&sc->fc->retry_probe_callout); 446 callout_stop(&sc->fc->busprobe_callout); 447 448#if __FreeBSD_version >= 500000 449 destroy_dev(sc->dev); 450#else 451 { 452 int j; 453 for (j = 0 ; j < sc->fc->nisodma + 1; j++) 454 destroy_dev(sc->dev[j]); 455 } 456#endif 457 /* XXX xfree_free and untimeout on all xfers */ 458 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 459 fwdev = fwdev_next) { 460 fwdev_next = STAILQ_NEXT(fwdev, link); 461 free(fwdev, M_FW); 462 } 463 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 464 next = SLIST_NEXT(csrd, link); 465 free(csrd, M_FW); 466 } 467 free(sc->fc->topology_map, M_FW); 468 free(sc->fc->speed_map, M_FW); 469 return(0); 470} 471#if 0 472static int 473firewire_shutdown( device_t dev ) 474{ 475 return 0; 476} 477#endif 478 479 480static void 481fw_xferq_drain(struct fw_xferq *xferq) 482{ 483 struct fw_xfer *xfer; 484 485 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 486 STAILQ_REMOVE_HEAD(&xferq->q, link); 487 xferq->queued --; 488 xfer->resp = EAGAIN; 489 fw_xfer_done(xfer); 490 } 491} 492 493void 494fw_drain_txq(struct firewire_comm *fc) 495{ 496 int i; 497 498 fw_xferq_drain(fc->atq); 499 fw_xferq_drain(fc->ats); 500 for(i = 0; i < fc->nisodma; i++) 501 fw_xferq_drain(fc->it[i]); 502} 503 504/* 505 * Called after bus reset. 506 */ 507void 508fw_busreset(struct firewire_comm *fc) 509{ 510 struct firewire_dev_comm *fdc; 511 device_t *devlistp; 512 int devcnt; 513 int i; 514 515 switch(fc->status){ 516 case FWBUSMGRELECT: 517 callout_stop(&fc->bmr_callout); 518 break; 519 default: 520 break; 521 } 522 fc->status = FWBUSRESET; 523 CSRARC(fc, STATE_CLEAR) 524 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 525 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 526 CSRARC(fc, NODE_IDS) = 0x3f; 527 528 CSRARC(fc, TOPO_MAP + 8) = 0; 529 fc->irm = -1; 530 531 fc->max_node = -1; 532 533 for(i = 2; i < 0x100/4 - 2 ; i++){ 534 CSRARC(fc, SPED_MAP + i * 4) = 0; 535 } 536 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 537 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 538 CSRARC(fc, RESET_START) = 0; 539 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 540 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 541 CSRARC(fc, CYCLE_TIME) = 0x0; 542 CSRARC(fc, BUS_TIME) = 0x0; 543 CSRARC(fc, BUS_MGR_ID) = 0x3f; 544 CSRARC(fc, BANDWIDTH_AV) = 4915; 545 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 546 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 547 CSRARC(fc, IP_CHANNELS) = (1 << 31); 548 549 CSRARC(fc, CONF_ROM) = 0x04 << 24; 550 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 551 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 552 1 << 28 | 0xff << 16 | 0x09 << 8; 553 CSRARC(fc, CONF_ROM + 0xc) = 0; 554 555/* DV depend CSRs see blue book */ 556 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 557 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 558 559 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 560 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 561 562 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 563 for( i = 0 ; i < devcnt ; i++) 564 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 565 fdc = device_get_softc(devlistp[i]); 566 if (fdc->post_busreset != NULL) 567 fdc->post_busreset(fdc); 568 } 569 free(devlistp, M_TEMP); 570 } 571} 572 573/* Call once after reboot */ 574void fw_init(struct firewire_comm *fc) 575{ 576 int i; 577 struct csrdir *csrd; 578#ifdef FW_VMACCESS 579 struct fw_xfer *xfer; 580 struct fw_bind *fwb; 581#endif 582 583 fc->max_asyretry = FW_MAXASYRTY; 584 585 fc->arq->queued = 0; 586 fc->ars->queued = 0; 587 fc->atq->queued = 0; 588 fc->ats->queued = 0; 589 590 fc->arq->buf = NULL; 591 fc->ars->buf = NULL; 592 fc->atq->buf = NULL; 593 fc->ats->buf = NULL; 594 595 fc->arq->flag = 0; 596 fc->ars->flag = 0; 597 fc->atq->flag = 0; 598 fc->ats->flag = 0; 599 600 STAILQ_INIT(&fc->atq->q); 601 STAILQ_INIT(&fc->ats->q); 602 603 for( i = 0 ; i < fc->nisodma ; i ++ ){ 604 fc->it[i]->queued = 0; 605 fc->ir[i]->queued = 0; 606 607 fc->it[i]->start = NULL; 608 fc->ir[i]->start = NULL; 609 610 fc->it[i]->buf = NULL; 611 fc->ir[i]->buf = NULL; 612 613 fc->it[i]->flag = FWXFERQ_STREAM; 614 fc->ir[i]->flag = FWXFERQ_STREAM; 615 616 STAILQ_INIT(&fc->it[i]->q); 617 STAILQ_INIT(&fc->ir[i]->q); 618 619 STAILQ_INIT(&fc->it[i]->binds); 620 STAILQ_INIT(&fc->ir[i]->binds); 621 } 622 623 fc->arq->maxq = FWMAXQUEUE; 624 fc->ars->maxq = FWMAXQUEUE; 625 fc->atq->maxq = FWMAXQUEUE; 626 fc->ats->maxq = FWMAXQUEUE; 627 628 for( i = 0 ; i < fc->nisodma ; i++){ 629 fc->ir[i]->maxq = FWMAXQUEUE; 630 fc->it[i]->maxq = FWMAXQUEUE; 631 } 632/* Initialize csr registers */ 633 fc->topology_map = (struct fw_topology_map *)malloc( 634 sizeof(struct fw_topology_map), 635 M_FW, M_NOWAIT | M_ZERO); 636 fc->speed_map = (struct fw_speed_map *)malloc( 637 sizeof(struct fw_speed_map), 638 M_FW, M_NOWAIT | M_ZERO); 639 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 640 CSRARC(fc, TOPO_MAP + 4) = 1; 641 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 642 CSRARC(fc, SPED_MAP + 4) = 1; 643 644 STAILQ_INIT(&fc->devices); 645 STAILQ_INIT(&fc->pending); 646 647/* Initialize csr ROM work space */ 648 SLIST_INIT(&fc->ongocsr); 649 SLIST_INIT(&fc->csrfree); 650 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 651 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 652 if(csrd == NULL) break; 653 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 654 } 655 656/* Initialize Async handlers */ 657 STAILQ_INIT(&fc->binds); 658 for( i = 0 ; i < 0x40 ; i++){ 659 STAILQ_INIT(&fc->tlabels[i]); 660 } 661 662/* DV depend CSRs see blue book */ 663#if 0 664 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 665 CSRARC(fc, oPCR) = 0x8000007a; 666 for(i = 4 ; i < 0x7c/4 ; i+=4){ 667 CSRARC(fc, i + oPCR) = 0x8000007a; 668 } 669 670 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 671 CSRARC(fc, iPCR) = 0x803f0000; 672 for(i = 4 ; i < 0x7c/4 ; i+=4){ 673 CSRARC(fc, i + iPCR) = 0x0; 674 } 675#endif 676 677 678#ifdef FW_VMACCESS 679 xfer = fw_xfer_alloc(); 680 if(xfer == NULL) return; 681 682 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 683 if(fwb == NULL){ 684 fw_xfer_free(xfer); 685 } 686 xfer->act.hand = fw_vmaccess; 687 xfer->fc = fc; 688 xfer->sc = NULL; 689 690 fwb->start_hi = 0x2; 691 fwb->start_lo = 0; 692 fwb->addrlen = 0xffffffff; 693 fwb->xfer = xfer; 694 fw_bindadd(fc, fwb); 695#endif 696} 697 698/* 699 * To lookup binded process from IEEE1394 address. 700 */ 701struct fw_bind * 702fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 703{ 704 struct fw_bind *tfw; 705 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 706 tfw = STAILQ_NEXT(tfw, fclist)){ 707 if (tfw->act_type != FWACT_NULL && 708 tfw->start_hi == dest_hi && 709 tfw->start_lo <= dest_lo && 710 (tfw->start_lo + tfw->addrlen) > dest_lo){ 711 return(tfw); 712 } 713 } 714 return(NULL); 715} 716 717/* 718 * To bind IEEE1394 address block to process. 719 */ 720int 721fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 722{ 723 struct fw_bind *tfw, *tfw2 = NULL; 724 int err = 0; 725 tfw = STAILQ_FIRST(&fc->binds); 726 if(tfw == NULL){ 727 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 728 goto out; 729 } 730 if((tfw->start_hi > fwb->start_hi) || 731 (tfw->start_hi == fwb->start_hi && 732 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 733 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 734 goto out; 735 } 736 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 737 if((tfw->start_hi < fwb->start_hi) || 738 (tfw->start_hi == fwb->start_hi && 739 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 740 tfw2 = STAILQ_NEXT(tfw, fclist); 741 if(tfw2 == NULL) 742 break; 743 if((tfw2->start_hi > fwb->start_hi) || 744 (tfw2->start_hi == fwb->start_hi && 745 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 746 break; 747 }else{ 748 err = EBUSY; 749 goto out; 750 } 751 } 752 } 753 if(tfw != NULL){ 754 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 755 }else{ 756 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 757 } 758out: 759 if (!err && fwb->act_type == FWACT_CH) 760 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 761 return err; 762} 763 764/* 765 * To free IEEE1394 address block. 766 */ 767int 768fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 769{ 770 int s; 771 struct fw_xfer *xfer, *next; 772 773 s = splfw(); 774 /* shall we check the existance? */ 775 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 776 /* shall we do this? */ 777 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 778 next = STAILQ_NEXT(xfer, link); 779 fw_xfer_free(xfer); 780 } 781 STAILQ_INIT(&fwb->xferlist); 782 783 splx(s); 784 return 0; 785} 786 787/* 788 * To free transaction label. 789 */ 790static void 791fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 792{ 793 struct tlabel *tl; 794 int s = splfw(); 795 796 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 797 tl = STAILQ_NEXT(tl, link)){ 798 if(tl->xfer == xfer){ 799 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 800 free(tl, M_FW); 801 splx(s); 802 return; 803 } 804 } 805 splx(s); 806 return; 807} 808 809/* 810 * To obtain XFER structure by transaction label. 811 */ 812static struct fw_xfer * 813fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 814{ 815 struct fw_xfer *xfer; 816 struct tlabel *tl; 817 int s = splfw(); 818 819 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 820 tl = STAILQ_NEXT(tl, link)){ 821 if(tl->xfer->dst == node){ 822 xfer = tl->xfer; 823 splx(s); 824 if (firewire_debug > 2) 825 printf("fw_tl2xfer: found tl=%d\n", tlabel); 826 return(xfer); 827 } 828 } 829 if (firewire_debug > 1) 830 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 831 splx(s); 832 return(NULL); 833} 834 835/* 836 * To allocate IEEE1394 XFER structure. 837 */ 838struct fw_xfer * 839fw_xfer_alloc(struct malloc_type *type) 840{ 841 struct fw_xfer *xfer; 842 843 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 844 if (xfer == NULL) 845 return xfer; 846 847 microtime(&xfer->tv); 848 xfer->malloc = type; 849 850 return xfer; 851} 852 853struct fw_xfer * 854fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 855{ 856 struct fw_xfer *xfer; 857 858 xfer = fw_xfer_alloc(type); 859 xfer->send.len = send_len; 860 xfer->recv.len = recv_len; 861 if (xfer == NULL) 862 return(NULL); 863 if (send_len) { 864 xfer->send.buf = malloc(send_len, type, M_NOWAIT | M_ZERO); 865 if (xfer->send.buf == NULL) { 866 fw_xfer_free(xfer); 867 return(NULL); 868 } 869 } 870 if (recv_len) { 871 xfer->recv.buf = malloc(recv_len, type, M_NOWAIT); 872 if (xfer->recv.buf == NULL) { 873 if (xfer->send.buf != NULL) 874 free(xfer->send.buf, type); 875 fw_xfer_free(xfer); 876 return(NULL); 877 } 878 } 879 return(xfer); 880} 881 882/* 883 * IEEE1394 XFER post process. 884 */ 885void 886fw_xfer_done(struct fw_xfer *xfer) 887{ 888 if (xfer->act.hand == NULL) 889 return; 890 891 if (xfer->fc->status != FWBUSRESET) 892 xfer->act.hand(xfer); 893 else { 894 printf("fw_xfer_done: pending\n"); 895 if (xfer->fc != NULL) 896 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 897 else 898 panic("fw_xfer_done: why xfer->fc is NULL?"); 899 } 900} 901 902void 903fw_xfer_unload(struct fw_xfer* xfer) 904{ 905 int s; 906 907 if(xfer == NULL ) return; 908 if(xfer->state == FWXF_INQ){ 909 printf("fw_xfer_free FWXF_INQ\n"); 910 s = splfw(); 911 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 912 xfer->q->queued --; 913 splx(s); 914 } 915 if (xfer->fc != NULL) { 916#if 1 /* this could happen if we call fwohci_arcv() before fwohci_txd() */ 917 if(xfer->state == FWXF_START) 918 panic("fw_xfer_free FWXF_START\n"); 919#endif 920 fw_tl_free(xfer->fc, xfer); 921 } 922 xfer->state = FWXF_INIT; 923 xfer->resp = 0; 924 xfer->retry = 0; 925} 926/* 927 * To free IEEE1394 XFER structure. 928 */ 929void 930fw_xfer_free( struct fw_xfer* xfer) 931{ 932 if(xfer == NULL ) return; 933 fw_xfer_unload(xfer); 934 if(xfer->send.buf != NULL){ 935 free(xfer->send.buf, xfer->malloc); 936 } 937 if(xfer->recv.buf != NULL){ 938 free(xfer->recv.buf, xfer->malloc); 939 } 940 free(xfer, xfer->malloc); 941} 942 943static void 944fw_asy_callback_free(struct fw_xfer *xfer) 945{ 946#if 0 947 printf("asyreq done state=%d resp=%d\n", 948 xfer->state, xfer->resp); 949#endif 950 fw_xfer_free(xfer); 951} 952 953/* 954 * To configure PHY. 955 */ 956static void 957fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 958{ 959 struct fw_xfer *xfer; 960 struct fw_pkt *fp; 961 962 fc->status = FWBUSPHYCONF; 963 964 xfer = fw_xfer_alloc_buf(M_FWXFER, 12, 0); 965 if (xfer == NULL) 966 return; 967 xfer->fc = fc; 968 xfer->retry_req = fw_asybusy; 969 xfer->act.hand = fw_asy_callback_free; 970 971 fp = (struct fw_pkt *)xfer->send.buf; 972 fp->mode.ld[1] = 0; 973 if (root_node >= 0) 974 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 975 if (gap_count >= 0) 976 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 977 fp->mode.ld[2] = ~fp->mode.ld[1]; 978/* XXX Dangerous, how to pass PHY packet to device driver */ 979 fp->mode.common.tcode |= FWTCODE_PHY; 980 981 if (firewire_debug) 982 printf("send phy_config root_node=%d gap_count=%d\n", 983 root_node, gap_count); 984 fw_asyreq(fc, -1, xfer); 985} 986 987#if 0 988/* 989 * Dump self ID. 990 */ 991static void 992fw_print_sid(u_int32_t sid) 993{ 994 union fw_self_id *s; 995 s = (union fw_self_id *) &sid; 996 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 997 " p0:%d p1:%d p2:%d i:%d m:%d\n", 998 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 999 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1000 s->p0.power_class, s->p0.port0, s->p0.port1, 1001 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1002} 1003#endif 1004 1005/* 1006 * To receive self ID. 1007 */ 1008void fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) 1009{ 1010 u_int32_t *p; 1011 union fw_self_id *self_id; 1012 u_int i, j, node, c_port = 0, i_branch = 0; 1013 1014 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1015 fc->status = FWBUSINIT; 1016 fc->max_node = fc->nodeid & 0x3f; 1017 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1018 fc->status = FWBUSCYMELECT; 1019 fc->topology_map->crc_len = 2; 1020 fc->topology_map->generation ++; 1021 fc->topology_map->self_id_count = 0; 1022 fc->topology_map->node_count = 0; 1023 fc->speed_map->generation ++; 1024 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1025 self_id = &fc->topology_map->self_id[0]; 1026 for(i = 0; i < fc->sid_cnt; i ++){ 1027 if (sid[1] != ~sid[0]) { 1028 printf("fw_sidrcv: invalid self-id packet\n"); 1029 sid += 2; 1030 continue; 1031 } 1032 *self_id = *((union fw_self_id *)sid); 1033 fc->topology_map->crc_len++; 1034 if(self_id->p0.sequel == 0){ 1035 fc->topology_map->node_count ++; 1036 c_port = 0; 1037#if 0 1038 fw_print_sid(sid[0]); 1039#endif 1040 node = self_id->p0.phy_id; 1041 if(fc->max_node < node){ 1042 fc->max_node = self_id->p0.phy_id; 1043 } 1044 /* XXX I'm not sure this is the right speed_map */ 1045 fc->speed_map->speed[node][node] 1046 = self_id->p0.phy_speed; 1047 for (j = 0; j < node; j ++) { 1048 fc->speed_map->speed[j][node] 1049 = fc->speed_map->speed[node][j] 1050 = min(fc->speed_map->speed[j][j], 1051 self_id->p0.phy_speed); 1052 } 1053 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1054 (self_id->p0.link_active && self_id->p0.contender)) { 1055 fc->irm = self_id->p0.phy_id; 1056 } 1057 if(self_id->p0.port0 >= 0x2){ 1058 c_port++; 1059 } 1060 if(self_id->p0.port1 >= 0x2){ 1061 c_port++; 1062 } 1063 if(self_id->p0.port2 >= 0x2){ 1064 c_port++; 1065 } 1066 } 1067 if(c_port > 2){ 1068 i_branch += (c_port - 2); 1069 } 1070 sid += 2; 1071 self_id++; 1072 fc->topology_map->self_id_count ++; 1073 } 1074 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1075 /* CRC */ 1076 fc->topology_map->crc = fw_crc16( 1077 (u_int32_t *)&fc->topology_map->generation, 1078 fc->topology_map->crc_len * 4); 1079 fc->speed_map->crc = fw_crc16( 1080 (u_int32_t *)&fc->speed_map->generation, 1081 fc->speed_map->crc_len * 4); 1082 /* byteswap and copy to CSR */ 1083 p = (u_int32_t *)fc->topology_map; 1084 for (i = 0; i <= fc->topology_map->crc_len; i++) 1085 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1086 p = (u_int32_t *)fc->speed_map; 1087 CSRARC(fc, SPED_MAP) = htonl(*p++); 1088 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1089 /* don't byte-swap u_int8_t array */ 1090 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1091 1092 fc->max_hop = fc->max_node - i_branch; 1093 printf(", maxhop <= %d", fc->max_hop); 1094 1095 if(fc->irm == -1 ){ 1096 printf(", Not found IRM capable node"); 1097 }else{ 1098 printf(", cable IRM = %d", fc->irm); 1099 if (fc->irm == fc->nodeid) 1100 printf(" (me)"); 1101 } 1102 printf("\n"); 1103 1104 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1105 if (fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)) { 1106 fc->status = FWBUSMGRDONE; 1107 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1108 } else { 1109 fc->status = FWBUSMGRELECT; 1110 callout_reset(&fc->bmr_callout, hz/8, 1111 (void *)fw_try_bmr, (void *)fc); 1112 } 1113 } else { 1114 fc->status = FWBUSMGRDONE; 1115#if 0 1116 device_printf(fc->bdev, "BMR = %x\n", 1117 CSRARC(fc, BUS_MGR_ID)); 1118#endif 1119 } 1120 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ 1121 /* I am BMGR */ 1122 fw_bmr(fc); 1123 } 1124 callout_reset(&fc->busprobe_callout, hz/4, 1125 (void *)fw_bus_probe, (void *)fc); 1126} 1127 1128/* 1129 * To probe devices on the IEEE1394 bus. 1130 */ 1131static void 1132fw_bus_probe(struct firewire_comm *fc) 1133{ 1134 int s; 1135 struct fw_device *fwdev, *next; 1136 1137 s = splfw(); 1138 fc->status = FWBUSEXPLORE; 1139 fc->retry_count = 0; 1140 1141/* 1142 * Invalidate all devices, just after bus reset. Devices 1143 * to be removed has not been seen longer time. 1144 */ 1145 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1146 next = STAILQ_NEXT(fwdev, link); 1147 if (fwdev->status != FWDEVINVAL) { 1148 fwdev->status = FWDEVINVAL; 1149 fwdev->rcnt = 0; 1150 } else if(fwdev->rcnt < FW_MAXDEVRCNT) { 1151 fwdev->rcnt ++; 1152 } else { 1153 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1154 free(fwdev, M_FW); 1155 } 1156 } 1157 fc->ongonode = 0; 1158 fc->ongoaddr = CSRROMOFF; 1159 fc->ongodev = NULL; 1160 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1161 fw_bus_explore(fc); 1162 splx(s); 1163} 1164 1165/* 1166 * To collect device informations on the IEEE1394 bus. 1167 */ 1168static void 1169fw_bus_explore(struct firewire_comm *fc ) 1170{ 1171 int err = 0; 1172 struct fw_device *fwdev, *pfwdev, *tfwdev; 1173 u_int32_t addr; 1174 struct fw_xfer *xfer; 1175 struct fw_pkt *fp; 1176 1177 if(fc->status != FWBUSEXPLORE) 1178 return; 1179 1180loop: 1181 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1182 1183 if(fc->ongonode > fc->max_node) goto done; 1184 if(fc->ongonode >= 0x3f) goto done; 1185 1186 /* check link */ 1187 /* XXX we need to check phy_id first */ 1188 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1189 if (firewire_debug) 1190 printf("node%d: link down\n", fc->ongonode); 1191 fc->ongonode++; 1192 goto loop; 1193 } 1194 1195 if(fc->ongoaddr <= CSRROMOFF && 1196 fc->ongoeui.hi == 0xffffffff && 1197 fc->ongoeui.lo == 0xffffffff ){ 1198 fc->ongoaddr = CSRROMOFF; 1199 addr = 0xf0000000 | fc->ongoaddr; 1200 }else if(fc->ongoeui.hi == 0xffffffff ){ 1201 fc->ongoaddr = CSRROMOFF + 0xc; 1202 addr = 0xf0000000 | fc->ongoaddr; 1203 }else if(fc->ongoeui.lo == 0xffffffff ){ 1204 fc->ongoaddr = CSRROMOFF + 0x10; 1205 addr = 0xf0000000 | fc->ongoaddr; 1206 }else if(fc->ongodev == NULL){ 1207 STAILQ_FOREACH(fwdev, &fc->devices, link) 1208 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1209 break; 1210 if(fwdev != NULL){ 1211 fwdev->dst = fc->ongonode; 1212 fwdev->status = FWDEVATTACHED; 1213 fc->ongonode++; 1214 fc->ongoaddr = CSRROMOFF; 1215 fc->ongodev = NULL; 1216 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1217 goto loop; 1218 } 1219 fwdev = malloc(sizeof(struct fw_device), M_FW, M_NOWAIT); 1220 if(fwdev == NULL) 1221 return; 1222 fwdev->fc = fc; 1223 fwdev->rommax = 0; 1224 fwdev->dst = fc->ongonode; 1225 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1226 fwdev->status = FWDEVINIT; 1227 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1228 1229 pfwdev = NULL; 1230 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1231 if (tfwdev->eui.hi > fwdev->eui.hi || 1232 (tfwdev->eui.hi == fwdev->eui.hi && 1233 tfwdev->eui.lo > fwdev->eui.lo)) 1234 break; 1235 pfwdev = tfwdev; 1236 } 1237 if (pfwdev == NULL) 1238 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1239 else 1240 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1241 1242 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1243 linkspeed[fwdev->speed], 1244 fc->ongoeui.hi, fc->ongoeui.lo); 1245 1246 fc->ongodev = fwdev; 1247 fc->ongoaddr = CSRROMOFF; 1248 addr = 0xf0000000 | fc->ongoaddr; 1249 }else{ 1250 addr = 0xf0000000 | fc->ongoaddr; 1251 } 1252#if 0 1253 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1254 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1255 fw_bus_explore_callback); 1256 if(xfer == NULL) goto done; 1257#else 1258 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 16); 1259 if(xfer == NULL){ 1260 goto done; 1261 } 1262 xfer->spd = 0; 1263 fp = (struct fw_pkt *)xfer->send.buf; 1264 fp->mode.rreqq.dest_hi = 0xffff; 1265 fp->mode.rreqq.tlrt = 0; 1266 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1267 fp->mode.rreqq.pri = 0; 1268 fp->mode.rreqq.src = 0; 1269 xfer->dst = FWLOCALBUS | fc->ongonode; 1270 fp->mode.rreqq.dst = xfer->dst; 1271 fp->mode.rreqq.dest_lo = addr; 1272 xfer->act.hand = fw_bus_explore_callback; 1273 1274 if (firewire_debug) 1275 printf("node%d: explore addr=0x%x\n", 1276 fc->ongonode, fc->ongoaddr); 1277 err = fw_asyreq(fc, -1, xfer); 1278 if(err){ 1279 fw_xfer_free( xfer); 1280 return; 1281 } 1282#endif 1283 return; 1284done: 1285 /* fw_attach_devs */ 1286 fc->status = FWBUSEXPDONE; 1287 if (firewire_debug) 1288 printf("bus_explore done\n"); 1289 fw_attach_dev(fc); 1290 return; 1291 1292} 1293 1294/* Portable Async. request read quad */ 1295struct fw_xfer * 1296asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1297 u_int32_t addr_hi, u_int32_t addr_lo, 1298 void (*hand) __P((struct fw_xfer*))) 1299{ 1300 struct fw_xfer *xfer; 1301 struct fw_pkt *fp; 1302 int err; 1303 1304 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 16); 1305 if (xfer == NULL) 1306 return NULL; 1307 1308 xfer->spd = spd; /* XXX:min(spd, fc->spd) */ 1309 fp = (struct fw_pkt *)xfer->send.buf; 1310 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1311 if(tl & FWP_TL_VALID){ 1312 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1313 }else{ 1314 fp->mode.rreqq.tlrt = 0; 1315 } 1316 fp->mode.rreqq.tlrt |= rt & 0x3; 1317 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1318 fp->mode.rreqq.pri = 0; 1319 fp->mode.rreqq.src = 0; 1320 xfer->dst = addr_hi >> 16; 1321 fp->mode.rreqq.dst = xfer->dst; 1322 fp->mode.rreqq.dest_lo = addr_lo; 1323 xfer->act.hand = hand; 1324 1325 err = fw_asyreq(fc, -1, xfer); 1326 if(err){ 1327 fw_xfer_free( xfer); 1328 return NULL; 1329 } 1330 return xfer; 1331} 1332 1333/* 1334 * Callback for the IEEE1394 bus information collection. 1335 */ 1336static void 1337fw_bus_explore_callback(struct fw_xfer *xfer) 1338{ 1339 struct firewire_comm *fc; 1340 struct fw_pkt *sfp,*rfp; 1341 struct csrhdr *chdr; 1342 struct csrdir *csrd; 1343 struct csrreg *csrreg; 1344 u_int32_t offset; 1345 1346 1347 if(xfer == NULL) { 1348 printf("xfer == NULL\n"); 1349 return; 1350 } 1351 fc = xfer->fc; 1352 1353 if (firewire_debug) 1354 printf("node%d: callback addr=0x%x\n", 1355 fc->ongonode, fc->ongoaddr); 1356 1357 if(xfer->resp != 0){ 1358 printf("node%d: resp=%d addr=0x%x\n", 1359 fc->ongonode, xfer->resp, fc->ongoaddr); 1360 fc->retry_count++; 1361 goto nextnode; 1362 } 1363 1364 if(xfer->send.buf == NULL){ 1365 printf("node%d: send.buf=NULL addr=0x%x\n", 1366 fc->ongonode, fc->ongoaddr); 1367 fc->retry_count++; 1368 goto nextnode; 1369 } 1370 sfp = (struct fw_pkt *)xfer->send.buf; 1371 1372 if(xfer->recv.buf == NULL){ 1373 printf("node%d: recv.buf=NULL addr=0x%x\n", 1374 fc->ongonode, fc->ongoaddr); 1375 fc->retry_count++; 1376 goto nextnode; 1377 } 1378 rfp = (struct fw_pkt *)xfer->recv.buf; 1379#if 0 1380 { 1381 u_int32_t *qld; 1382 int i; 1383 qld = (u_int32_t *)xfer->recv.buf; 1384 printf("len:%d\n", xfer->recv.len); 1385 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1386 printf("0x%08x ", rfp->mode.ld[i/4]); 1387 if((i % 16) == 15) printf("\n"); 1388 } 1389 if((i % 16) != 15) printf("\n"); 1390 } 1391#endif 1392 if(fc->ongodev == NULL){ 1393 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1394 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1395 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1396/* If CSR is minimal confinguration, more investgation is not needed. */ 1397 if(chdr->info_len == 1){ 1398 if (firewire_debug) 1399 printf("node%d: minimal config\n", 1400 fc->ongonode); 1401 goto nextnode; 1402 }else{ 1403 fc->ongoaddr = CSRROMOFF + 0xc; 1404 } 1405 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1406 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1407 fc->ongoaddr = CSRROMOFF + 0x10; 1408 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1409 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1410 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1411 if (firewire_debug) 1412 printf("node%d: eui64 is zero.\n", 1413 fc->ongonode); 1414 goto nextnode; 1415 } 1416 fc->ongoaddr = CSRROMOFF; 1417 } 1418 }else{ 1419 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1420 if(fc->ongoaddr > fc->ongodev->rommax){ 1421 fc->ongodev->rommax = fc->ongoaddr; 1422 } 1423 csrd = SLIST_FIRST(&fc->ongocsr); 1424 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1425 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1426 offset = CSRROMOFF; 1427 }else{ 1428 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1429 offset = csrd->off; 1430 } 1431 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1432 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1433 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1434 csrd = SLIST_FIRST(&fc->csrfree); 1435 if(csrd == NULL){ 1436 goto nextnode; 1437 }else{ 1438 csrd->ongoaddr = fc->ongoaddr; 1439 fc->ongoaddr += csrreg->val * 4; 1440 csrd->off = fc->ongoaddr; 1441 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1442 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1443 goto nextaddr; 1444 } 1445 } 1446 } 1447 fc->ongoaddr += 4; 1448 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1449 (fc->ongodev->rommax < 0x414)){ 1450 if(fc->ongodev->rommax <= 0x414){ 1451 csrd = SLIST_FIRST(&fc->csrfree); 1452 if(csrd == NULL) goto nextnode; 1453 csrd->off = fc->ongoaddr; 1454 csrd->ongoaddr = fc->ongoaddr; 1455 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1456 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1457 } 1458 goto nextaddr; 1459 } 1460 1461 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1462 if(csrd == NULL){ 1463 goto nextnode; 1464 }; 1465 fc->ongoaddr = csrd->ongoaddr + 4; 1466 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1467 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1468 csrd = SLIST_FIRST(&fc->ongocsr); 1469 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1470 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1471 offset = CSRROMOFF; 1472 }else{ 1473 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1474 offset = csrd->off; 1475 } 1476 } 1477 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1478 goto nextnode; 1479 } 1480 } 1481nextaddr: 1482 fw_xfer_free( xfer); 1483 fw_bus_explore(fc); 1484 return; 1485nextnode: 1486 fw_xfer_free( xfer); 1487 fc->ongonode++; 1488/* housekeeping work space */ 1489 fc->ongoaddr = CSRROMOFF; 1490 fc->ongodev = NULL; 1491 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1492 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1493 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1494 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1495 } 1496 fw_bus_explore(fc); 1497 return; 1498} 1499 1500/* 1501 * To attach sub-devices layer onto IEEE1394 bus. 1502 */ 1503static void 1504fw_attach_dev(struct firewire_comm *fc) 1505{ 1506 struct fw_device *fwdev; 1507 struct fw_xfer *xfer; 1508 int i, err; 1509 device_t *devlistp; 1510 int devcnt; 1511 struct firewire_dev_comm *fdc; 1512 1513 STAILQ_FOREACH(fwdev, &fc->devices, link) 1514 if (fwdev->status == FWDEVINIT) 1515 fwdev->status = FWDEVATTACHED; 1516 1517 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1518 if( err != 0 ) 1519 return; 1520 for( i = 0 ; i < devcnt ; i++){ 1521 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1522 fdc = device_get_softc(devlistp[i]); 1523 if (fdc->post_explore != NULL) 1524 fdc->post_explore(fdc); 1525 } 1526 } 1527 free(devlistp, M_TEMP); 1528 1529 /* call pending handlers */ 1530 i = 0; 1531 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1532 STAILQ_REMOVE_HEAD(&fc->pending, link); 1533 i++; 1534 if (xfer->act.hand) 1535 xfer->act.hand(xfer); 1536 } 1537 if (i > 0) 1538 printf("fw_attach_dev: %d pending handlers called\n", i); 1539 if (fc->retry_count > 0) { 1540 printf("probe failed for %d node\n", fc->retry_count); 1541#if 0 1542 callout_reset(&fc->retry_probe_callout, hz*2, 1543 (void *)fc->ibr, (void *)fc); 1544#endif 1545 } 1546 return; 1547} 1548 1549/* 1550 * To allocate uniq transaction label. 1551 */ 1552static int 1553fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1554{ 1555 u_int i; 1556 struct tlabel *tl, *tmptl; 1557 int s; 1558 static u_int32_t label = 0; 1559 1560 s = splfw(); 1561 for( i = 0 ; i < 0x40 ; i ++){ 1562 label = (label + 1) & 0x3f; 1563 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1564 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1565 if(tmptl->xfer->dst == xfer->dst) break; 1566 } 1567 if(tmptl == NULL) { 1568 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1569 if (tl == NULL) { 1570 splx(s); 1571 return (-1); 1572 } 1573 tl->xfer = xfer; 1574 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1575 splx(s); 1576 if (firewire_debug > 1) 1577 printf("fw_get_tlabel: dst=%d tl=%d\n", 1578 xfer->dst, label); 1579 return(label); 1580 } 1581 } 1582 splx(s); 1583 1584 printf("fw_get_tlabel: no free tlabel\n"); 1585 return(-1); 1586} 1587 1588static void 1589fw_rcv_copy(struct fw_xfer *xfer, struct iovec *vec, int nvec) 1590{ 1591 char *p; 1592 int res, i, len; 1593 1594 p = xfer->recv.buf; 1595 res = xfer->recv.len; 1596 for (i = 0; i < nvec; i++, vec++) { 1597 len = vec->iov_len; 1598 if (res < len) { 1599 printf("rcv buffer(%d) is %d bytes short.\n", 1600 xfer->recv.len, len - res); 1601 len = res; 1602 } 1603 bcopy(vec->iov_base, p, len); 1604 p += len; 1605 res -= len; 1606 if (res <= 0) 1607 break; 1608 } 1609 xfer->recv.len -= res; 1610} 1611 1612/* 1613 * Generic packet receving process. 1614 */ 1615void 1616fw_rcv(struct firewire_comm *fc, struct iovec *vec, int nvec, u_int sub, u_int spd) 1617{ 1618 struct fw_pkt *fp, *resfp; 1619 struct fw_xfer *xfer; 1620 struct fw_bind *bind; 1621 struct firewire_softc *sc; 1622 int tcode, s; 1623 int i, len, oldstate; 1624#if 0 1625 { 1626 u_int32_t *qld; 1627 int i; 1628 qld = (u_int32_t *)buf; 1629 printf("spd %d len:%d\n", spd, len); 1630 for( i = 0 ; i <= len && i < 32; i+= 4){ 1631 printf("0x%08x ", ntohl(qld[i/4])); 1632 if((i % 16) == 15) printf("\n"); 1633 } 1634 if((i % 16) != 15) printf("\n"); 1635 } 1636#endif 1637 fp = (struct fw_pkt *)vec[0].iov_base; 1638 tcode = fp->mode.common.tcode; 1639#if 0 /* XXX this check is not valid for RRESQ and WREQQ */ 1640 if (vec[0].iov_len < fc->tcode[tcode].hdr_len) { 1641#if __FreeBSD_version >= 500000 1642 printf("fw_rcv: iov_len(%zu) is less than" 1643#else 1644 printf("fw_rcv: iov_len(%u) is less than" 1645#endif 1646 " hdr_len(%d:tcode=%d)\n", vec[0].iov_len, 1647 fc->tcode[tcode].hdr_len, tcode); 1648 } 1649#endif 1650 switch (tcode) { 1651 case FWTCODE_WRES: 1652 case FWTCODE_RRESQ: 1653 case FWTCODE_RRESB: 1654 case FWTCODE_LRES: 1655 xfer = fw_tl2xfer(fc, fp->mode.hdr.src, 1656 fp->mode.hdr.tlrt >> 2); 1657 if(xfer == NULL) { 1658 printf("fw_rcv: unknown response " 1659 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n", 1660 tcode, 1661 fp->mode.hdr.src, 1662 fp->mode.hdr.tlrt >> 2, 1663 fp->mode.hdr.tlrt & 3, 1664 fp->mode.rresq.data); 1665#if 1 1666 printf("try ad-hoc work around!!\n"); 1667 xfer = fw_tl2xfer(fc, fp->mode.hdr.src, 1668 (fp->mode.hdr.tlrt >> 2)^3); 1669 if (xfer == NULL) { 1670 printf("no use...\n"); 1671 goto err; 1672 } 1673#else 1674 goto err; 1675#endif 1676 } 1677 fw_rcv_copy(xfer, vec, nvec); 1678 xfer->resp = 0; 1679 /* make sure the packet is drained in AT queue */ 1680 oldstate = xfer->state; 1681 xfer->state = FWXF_RCVD; 1682 switch (oldstate) { 1683 case FWXF_SENT: 1684 fw_xfer_done(xfer); 1685 break; 1686 case FWXF_START: 1687 if (firewire_debug) 1688 printf("not sent yet\n"); 1689 break; 1690 default: 1691 printf("unexpected state %d\n", xfer->state); 1692 } 1693 return; 1694 case FWTCODE_WREQQ: 1695 case FWTCODE_WREQB: 1696 case FWTCODE_RREQQ: 1697 case FWTCODE_RREQB: 1698 case FWTCODE_LREQ: 1699 bind = fw_bindlookup(fc, fp->mode.rreqq.dest_hi, 1700 fp->mode.rreqq.dest_lo); 1701 if(bind == NULL){ 1702#if __FreeBSD_version >= 500000 1703 printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%x\n", 1704#else 1705 printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%lx\n", 1706#endif 1707 fp->mode.wreqq.dest_hi, 1708 fp->mode.wreqq.dest_lo, 1709 tcode, 1710 fp->mode.hdr.src, 1711 ntohl(fp->mode.wreqq.data)); 1712 if (fc->status == FWBUSRESET) { 1713 printf("fw_rcv: cannot respond(bus reset)!\n"); 1714 goto err; 1715 } 1716 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 0); 1717 if(xfer == NULL){ 1718 return; 1719 } 1720 xfer->spd = spd; 1721 resfp = (struct fw_pkt *)xfer->send.buf; 1722 switch (tcode) { 1723 case FWTCODE_WREQQ: 1724 case FWTCODE_WREQB: 1725 resfp->mode.hdr.tcode = FWTCODE_WRES; 1726 xfer->send.len = 12; 1727 break; 1728 case FWTCODE_RREQQ: 1729 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1730 xfer->send.len = 16; 1731 break; 1732 case FWTCODE_RREQB: 1733 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1734 xfer->send.len = 16; 1735 break; 1736 case FWTCODE_LREQ: 1737 resfp->mode.hdr.tcode = FWTCODE_LRES; 1738 xfer->send.len = 16; 1739 break; 1740 } 1741 resfp->mode.hdr.dst = fp->mode.hdr.src; 1742 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1743 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1744 resfp->mode.rresb.rtcode = 7; 1745 resfp->mode.rresb.extcode = 0; 1746 resfp->mode.rresb.len = 0; 1747/* 1748 xfer->act.hand = fw_asy_callback; 1749*/ 1750 xfer->act.hand = fw_xfer_free; 1751 if(fw_asyreq(fc, -1, xfer)){ 1752 fw_xfer_free( xfer); 1753 return; 1754 } 1755 goto err; 1756 } 1757 len = 0; 1758 for (i = 0; i < nvec; i ++) 1759 len += vec[i].iov_len; 1760 switch(bind->act_type){ 1761 case FWACT_XFER: 1762 /* splfw()?? */ 1763 xfer = STAILQ_FIRST(&bind->xferlist); 1764 if (xfer == NULL) { 1765 printf("Discard a packet for this bind.\n"); 1766 goto err; 1767 } 1768 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1769 fw_rcv_copy(xfer, vec, nvec); 1770 xfer->spd = spd; 1771 if (fc->status != FWBUSRESET) 1772 xfer->act.hand(xfer); 1773 else 1774 STAILQ_INSERT_TAIL(&fc->pending, xfer, link); 1775 return; 1776 break; 1777 case FWACT_CH: 1778 if(fc->ir[bind->sub]->queued >= 1779 fc->ir[bind->sub]->maxq){ 1780 device_printf(fc->bdev, 1781 "Discard a packet %x %d\n", 1782 bind->sub, 1783 fc->ir[bind->sub]->queued); 1784 goto err; 1785 } 1786 xfer = STAILQ_FIRST(&bind->xferlist); 1787 if (xfer == NULL) { 1788 printf("Discard packet for this bind\n"); 1789 goto err; 1790 } 1791 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1792 fw_rcv_copy(xfer, vec, nvec); 1793 xfer->spd = spd; 1794 s = splfw(); 1795 fc->ir[bind->sub]->queued++; 1796 STAILQ_INSERT_TAIL(&fc->ir[bind->sub]->q, xfer, link); 1797 splx(s); 1798 1799 wakeup((caddr_t)fc->ir[bind->sub]); 1800 1801 return; 1802 break; 1803 default: 1804 goto err; 1805 break; 1806 } 1807 break; 1808 case FWTCODE_STREAM: 1809 { 1810 struct fw_xferq *xferq; 1811 1812 xferq = fc->ir[sub]; 1813#if 0 1814 printf("stream rcv dma %d len %d off %d spd %d\n", 1815 sub, len, off, spd); 1816#endif 1817 if(xferq->queued >= xferq->maxq) { 1818 printf("receive queue is full\n"); 1819 goto err; 1820 } 1821 /* XXX get xfer from xfer queue, we don't need copy for 1822 per packet mode */ 1823 xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1824 vec[0].iov_len); 1825 if(xfer == NULL) goto err; 1826 fw_rcv_copy(xfer, vec, nvec); 1827 xfer->spd = spd; 1828 s = splfw(); 1829 xferq->queued++; 1830 STAILQ_INSERT_TAIL(&xferq->q, xfer, link); 1831 splx(s); 1832 sc = device_get_softc(fc->bdev); 1833#if __FreeBSD_version >= 500000 1834 if (SEL_WAITING(&xferq->rsel)) 1835#else 1836 if (&xferq->rsel.si_pid != 0) 1837#endif 1838 selwakeup(&xferq->rsel); 1839 if (xferq->flag & FWXFERQ_WAKEUP) { 1840 xferq->flag &= ~FWXFERQ_WAKEUP; 1841 wakeup((caddr_t)xferq); 1842 } 1843 if (xferq->flag & FWXFERQ_HANDLER) { 1844 xferq->hand(xferq); 1845 } 1846 return; 1847 break; 1848 } 1849 default: 1850 printf("fw_rcv: unknow tcode %d\n", tcode); 1851 break; 1852 } 1853err: 1854 return; 1855} 1856 1857/* 1858 * Post process for Bus Manager election process. 1859 */ 1860static void 1861fw_try_bmr_callback(struct fw_xfer *xfer) 1862{ 1863 struct fw_pkt *rfp; 1864 struct firewire_comm *fc; 1865 int bmr; 1866 1867 if (xfer == NULL) 1868 return; 1869 fc = xfer->fc; 1870 if (xfer->resp != 0) 1871 goto error; 1872 if (xfer->send.buf == NULL) 1873 goto error; 1874 if (xfer->recv.buf == NULL) 1875 goto error; 1876 rfp = (struct fw_pkt *)xfer->recv.buf; 1877 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE) 1878 goto error; 1879 1880 bmr = ntohl(rfp->mode.lres.payload[0]); 1881 if (bmr == 0x3f) 1882 bmr = fc->nodeid; 1883 1884 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 1885 device_printf(fc->bdev, "new bus manager %d ", 1886 CSRARC(fc, BUS_MGR_ID)); 1887 if(bmr == fc->nodeid){ 1888 printf("(me)\n"); 1889 fw_bmr(fc); 1890 }else{ 1891 printf("\n"); 1892 } 1893error: 1894 fw_xfer_free(xfer); 1895} 1896 1897 1898/* 1899 * To candidate Bus Manager election process. 1900 */ 1901static void 1902fw_try_bmr(void *arg) 1903{ 1904 struct fw_xfer *xfer; 1905 struct firewire_comm *fc = (struct firewire_comm *)arg; 1906 struct fw_pkt *fp; 1907 int err = 0; 1908 1909 xfer = fw_xfer_alloc_buf(M_FWXFER, 24, 20); 1910 if(xfer == NULL){ 1911 return; 1912 } 1913 xfer->spd = 0; 1914 fc->status = FWBUSMGRELECT; 1915 1916 fp = (struct fw_pkt *)xfer->send.buf; 1917 fp->mode.lreq.dest_hi = 0xffff; 1918 fp->mode.lreq.tlrt = 0; 1919 fp->mode.lreq.tcode = FWTCODE_LREQ; 1920 fp->mode.lreq.pri = 0; 1921 fp->mode.lreq.src = 0; 1922 fp->mode.lreq.len = 8; 1923 fp->mode.lreq.extcode = FW_LREQ_CMPSWAP; 1924 xfer->dst = FWLOCALBUS | fc->irm; 1925 fp->mode.lreq.dst = xfer->dst; 1926 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 1927 fp->mode.lreq.payload[0] = htonl(0x3f); 1928 fp->mode.lreq.payload[1] = htonl(fc->nodeid); 1929 xfer->act.hand = fw_try_bmr_callback; 1930 1931 err = fw_asyreq(fc, -1, xfer); 1932 if(err){ 1933 fw_xfer_free( xfer); 1934 return; 1935 } 1936 return; 1937} 1938 1939#ifdef FW_VMACCESS 1940/* 1941 * Software implementation for physical memory block access. 1942 * XXX:Too slow, usef for debug purpose only. 1943 */ 1944static void 1945fw_vmaccess(struct fw_xfer *xfer){ 1946 struct fw_pkt *rfp, *sfp = NULL; 1947 u_int32_t *ld = (u_int32_t *)xfer->recv.buf; 1948 1949 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 1950 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1951 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1952 if(xfer->resp != 0){ 1953 fw_xfer_free( xfer); 1954 return; 1955 } 1956 if(xfer->recv.buf == NULL){ 1957 fw_xfer_free( xfer); 1958 return; 1959 } 1960 rfp = (struct fw_pkt *)xfer->recv.buf; 1961 switch(rfp->mode.hdr.tcode){ 1962 /* XXX need fix for 64bit arch */ 1963 case FWTCODE_WREQB: 1964 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 1965 xfer->send.len = 12; 1966 sfp = (struct fw_pkt *)xfer->send.buf; 1967 bcopy(rfp->mode.wreqb.payload, 1968 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 1969 sfp->mode.wres.tcode = FWTCODE_WRES; 1970 sfp->mode.wres.rtcode = 0; 1971 break; 1972 case FWTCODE_WREQQ: 1973 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 1974 xfer->send.len = 12; 1975 sfp->mode.wres.tcode = FWTCODE_WRES; 1976 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 1977 sfp->mode.wres.rtcode = 0; 1978 break; 1979 case FWTCODE_RREQB: 1980 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 1981 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 1982 sfp = (struct fw_pkt *)xfer->send.buf; 1983 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 1984 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 1985 sfp->mode.rresb.tcode = FWTCODE_RRESB; 1986 sfp->mode.rresb.len = rfp->mode.rreqb.len; 1987 sfp->mode.rresb.rtcode = 0; 1988 sfp->mode.rresb.extcode = 0; 1989 break; 1990 case FWTCODE_RREQQ: 1991 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1992 xfer->send.len = 16; 1993 sfp = (struct fw_pkt *)xfer->send.buf; 1994 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 1995 sfp->mode.wres.tcode = FWTCODE_RRESQ; 1996 sfp->mode.rresb.rtcode = 0; 1997 break; 1998 default: 1999 fw_xfer_free( xfer); 2000 return; 2001 } 2002 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2003 xfer->dst = ntohs(rfp->mode.hdr.src); 2004 xfer->act.hand = fw_xfer_free; 2005 xfer->retry_req = fw_asybusy; 2006 2007 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2008 sfp->mode.hdr.pri = 0; 2009 2010 fw_asyreq(xfer->fc, -1, xfer); 2011/**/ 2012 return; 2013} 2014#endif 2015 2016/* 2017 * CRC16 check-sum for IEEE1394 register blocks. 2018 */ 2019u_int16_t 2020fw_crc16(u_int32_t *ptr, u_int32_t len){ 2021 u_int32_t i, sum, crc = 0; 2022 int shift; 2023 len = (len + 3) & ~3; 2024 for(i = 0 ; i < len ; i+= 4){ 2025 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2026 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2027 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2028 } 2029 crc &= 0xffff; 2030 } 2031 return((u_int16_t) crc); 2032} 2033 2034static int 2035fw_bmr(struct firewire_comm *fc) 2036{ 2037 struct fw_device fwdev; 2038 union fw_self_id *self_id; 2039 int cmstr; 2040 2041 /* Check to see if the current root node is cycle master capable */ 2042 self_id = &fc->topology_map->self_id[fc->max_node]; 2043 if (fc->max_node > 0) { 2044 if (self_id->p0.contender) 2045 cmstr = fc->max_node; 2046 else 2047 /* XXX shall we be cycle master? */ 2048 cmstr = fc->nodeid; 2049 /* XXX bus reset? */ 2050 } else 2051 cmstr = -1; 2052 /* If I am the bus manager, optimize gapcount */ 2053 if(fc->max_hop <= MAX_GAPHOP ) 2054 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2055 /* If we are the cycle master, nothing to do */ 2056 if (cmstr == fc->nodeid || cmstr == -1) 2057 return 0; 2058 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2059 bzero(&fwdev, sizeof(fwdev)); 2060 fwdev.fc = fc; 2061 fwdev.dst = cmstr; 2062 fwdev.speed = 0; 2063 fwdev.maxrec = 8; /* 512 */ 2064 fwdev.status = FWDEVINIT; 2065 /* Set cmstr bit on the cycle master */ 2066 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2067 0xffff, 0xf0000000 | STATE_SET, htonl(1 << 16), 2068 fw_asy_callback_free); 2069 2070 return 0; 2071} 2072 2073DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); 2074MODULE_VERSION(firewire, 1); 2075