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 * $FreeBSD$ 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 62 int firewire_debug=0, try_bmr=1; 63 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 64 "FireWire driver debug flag"); 65 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 66 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 67 "Try to be a bus manager"); 68 69 MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 70 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 71 72 #define FW_MAXASYRTY 4 73 #define FW_MAXDEVRCNT 4 74 75 devclass_t firewire_devclass; 76 77 static int firewire_match __P((device_t)); 78 static int firewire_attach __P((device_t)); 79 static int firewire_detach __P((device_t)); 80 #if 0 81 static int firewire_shutdown __P((device_t)); 82 #endif 83 static device_t firewire_add_child __P((device_t, int, const char *, int)); 84 static void fw_try_bmr __P((void *)); 85 static void fw_try_bmr_callback __P((struct fw_xfer *)); 86 static void fw_asystart __P((struct fw_xfer *)); 87 static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *)); 88 static void fw_bus_probe __P((struct firewire_comm *)); 89 static void fw_bus_explore __P((struct firewire_comm *)); 90 static void fw_bus_explore_callback __P((struct fw_xfer *)); 91 static void fw_attach_dev __P((struct firewire_comm *)); 92 #ifdef FW_VMACCESS 93 static void fw_vmaccess __P((struct fw_xfer *)); 94 #endif 95 struct 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 *)))); 97 static int fw_bmr __P((struct firewire_comm *)); 98 99 static 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 }; 114 char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"}; 115 116 /* IEEE-1394a Table C-2 Gap count as a function of hops*/ 117 #define MAX_GAPHOP 15 118 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 119 21, 24, 26, 29, 32, 35, 37, 40}; 120 121 extern struct cdevsw firewire_cdevsw; 122 123 static driver_t firewire_driver = { 124 "firewire", 125 firewire_methods, 126 sizeof(struct firewire_softc), 127 }; 128 129 /* 130 * Lookup fwdev by node id. 131 */ 132 struct fw_device * 133 fw_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 */ 152 struct fw_device * 153 fw_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 */ 172 int 173 fw_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 += fp->mode.stream.len; 206 else if (info->flag & FWTI_BLOCK_ASY) 207 len += 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->resp = 0; 234 xfer->fc = fc; 235 xfer->q = xferq; 236 xfer->retry_req = fw_asybusy; 237 238 fw_asystart(xfer); 239 return err; 240 } 241 /* 242 * Wakeup blocked process. 243 */ 244 void 245 fw_asy_callback(struct fw_xfer *xfer){ 246 wakeup(xfer); 247 return; 248 } 249 /* 250 * Postpone to later retry. 251 */ 252 void fw_asybusy(struct fw_xfer *xfer){ 253 printf("fw_asybusy\n"); 254 /* 255 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 256 */ 257 DELAY(20000); 258 fw_asystart(xfer); 259 return; 260 } 261 262 /* 263 * Async. request with given xfer structure. 264 */ 265 static void 266 fw_asystart(struct fw_xfer *xfer) 267 { 268 struct firewire_comm *fc = xfer->fc; 269 int s; 270 if(xfer->retry++ >= fc->max_asyretry){ 271 device_printf(fc->bdev, "max_asyretry exceeded\n"); 272 xfer->resp = EBUSY; 273 xfer->state = FWXF_BUSY; 274 xfer->act.hand(xfer); 275 return; 276 } 277 #if 0 /* XXX allow bus explore packets only after bus rest */ 278 if (fc->status < FWBUSEXPLORE) { 279 xfer->resp = EAGAIN; 280 xfer->state = FWXF_BUSY; 281 if (xfer->act.hand != NULL) 282 xfer->act.hand(xfer); 283 return; 284 } 285 #endif 286 s = splfw(); 287 xfer->state = FWXF_INQ; 288 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 289 xfer->q->queued ++; 290 splx(s); 291 /* XXX just queue for mbuf */ 292 if (xfer->mbuf == NULL) 293 xfer->q->start(fc); 294 return; 295 } 296 297 static int 298 firewire_match( device_t dev ) 299 { 300 device_set_desc(dev, "IEEE1394(FireWire) bus"); 301 return -140; 302 } 303 304 static void 305 firewire_xfer_timeout(struct firewire_comm *fc) 306 { 307 struct fw_xfer *xfer; 308 struct tlabel *tl; 309 struct timeval tv; 310 struct timeval split_timeout; 311 int i, s; 312 313 split_timeout.tv_sec = 6; 314 split_timeout.tv_usec = 0; 315 316 microtime(&tv); 317 timevalsub(&tv, &split_timeout); 318 319 s = splfw(); 320 for (i = 0; i < 0x40; i ++) { 321 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 322 xfer = tl->xfer; 323 if (timevalcmp(&xfer->tv, &tv, >)) 324 /* the rests are newer than this */ 325 break; 326 device_printf(fc->bdev, 327 "split transaction timeout dst=0x%x tl=0x%x\n", 328 xfer->dst, i); 329 xfer->resp = ETIMEDOUT; 330 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 331 fw_xfer_done(xfer); 332 } 333 } 334 splx(s); 335 } 336 337 static void 338 firewire_watchdog(void *arg) 339 { 340 struct firewire_comm *fc; 341 342 fc = (struct firewire_comm *)arg; 343 firewire_xfer_timeout(fc); 344 fc->timeout(fc); 345 callout_reset(&fc->timeout_callout, hz, 346 (void *)firewire_watchdog, (void *)fc); 347 } 348 349 /* 350 * The attach routine. 351 */ 352 static int 353 firewire_attach( device_t dev ) 354 { 355 int i, unitmask, mn; 356 struct firewire_softc *sc = device_get_softc(dev); 357 device_t pa = device_get_parent(dev); 358 struct firewire_comm *fc; 359 dev_t d; 360 361 fc = (struct firewire_comm *)device_get_softc(pa); 362 sc->fc = fc; 363 fc->status = -1; 364 365 unitmask = UNIT2MIN(device_get_unit(dev)); 366 367 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 368 for ( i = 0 ; i < fc->nisodma ; i++ ){ 369 mn = unitmask | i; 370 /* XXX device name should be improved */ 371 d = make_dev(&firewire_cdevsw, unit2minor(mn), 372 UID_ROOT, GID_OPERATOR, 0660, 373 "fw%x", mn); 374 #if __FreeBSD_version >= 500000 375 if (i == 0) 376 sc->dev = d; 377 else 378 dev_depends(sc->dev, d); 379 #else 380 sc->dev[i] = d; 381 #endif 382 } 383 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG), 384 UID_ROOT, GID_OPERATOR, 0660, 385 "fwmem%d", device_get_unit(dev)); 386 #if __FreeBSD_version >= 500000 387 dev_depends(sc->dev, d); 388 #else 389 sc->dev[i] = d; 390 #endif 391 CALLOUT_INIT(&sc->fc->timeout_callout); 392 CALLOUT_INIT(&sc->fc->bmr_callout); 393 CALLOUT_INIT(&sc->fc->retry_probe_callout); 394 CALLOUT_INIT(&sc->fc->busprobe_callout); 395 396 callout_reset(&sc->fc->timeout_callout, hz, 397 (void *)firewire_watchdog, (void *)sc->fc); 398 399 /* Locate our children */ 400 bus_generic_probe(dev); 401 402 /* launch attachement of the added children */ 403 bus_generic_attach(dev); 404 405 /* bus_reset */ 406 fc->ibr(fc); 407 408 return 0; 409 } 410 411 /* 412 * Attach it as child. 413 */ 414 static device_t 415 firewire_add_child(device_t dev, int order, const char *name, int unit) 416 { 417 device_t child; 418 struct firewire_softc *sc; 419 420 sc = (struct firewire_softc *)device_get_softc(dev); 421 child = device_add_child(dev, name, unit); 422 if (child) { 423 device_set_ivars(child, sc->fc); 424 device_probe_and_attach(child); 425 } 426 427 return child; 428 } 429 430 /* 431 * Dettach it. 432 */ 433 static int 434 firewire_detach( device_t dev ) 435 { 436 struct firewire_softc *sc; 437 struct csrdir *csrd, *next; 438 struct fw_device *fwdev, *fwdev_next; 439 440 sc = (struct firewire_softc *)device_get_softc(dev); 441 442 bus_generic_detach(dev); 443 444 callout_stop(&sc->fc->timeout_callout); 445 callout_stop(&sc->fc->bmr_callout); 446 callout_stop(&sc->fc->retry_probe_callout); 447 callout_stop(&sc->fc->busprobe_callout); 448 449 #if __FreeBSD_version >= 500000 450 destroy_dev(sc->dev); 451 #else 452 { 453 int j; 454 for (j = 0 ; j < sc->fc->nisodma + 1; j++) 455 destroy_dev(sc->dev[j]); 456 } 457 #endif 458 /* XXX xfree_free and untimeout on all xfers */ 459 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 460 fwdev = fwdev_next) { 461 fwdev_next = STAILQ_NEXT(fwdev, link); 462 free(fwdev, M_FW); 463 } 464 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 465 next = SLIST_NEXT(csrd, link); 466 free(csrd, M_FW); 467 } 468 free(sc->fc->topology_map, M_FW); 469 free(sc->fc->speed_map, M_FW); 470 return(0); 471 } 472 #if 0 473 static int 474 firewire_shutdown( device_t dev ) 475 { 476 return 0; 477 } 478 #endif 479 480 481 static void 482 fw_xferq_drain(struct fw_xferq *xferq) 483 { 484 struct fw_xfer *xfer; 485 486 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 487 STAILQ_REMOVE_HEAD(&xferq->q, link); 488 xferq->queued --; 489 xfer->resp = EAGAIN; 490 fw_xfer_done(xfer); 491 } 492 } 493 494 void 495 fw_drain_txq(struct firewire_comm *fc) 496 { 497 int i; 498 499 fw_xferq_drain(fc->atq); 500 fw_xferq_drain(fc->ats); 501 for(i = 0; i < fc->nisodma; i++) 502 fw_xferq_drain(fc->it[i]); 503 } 504 505 /* 506 * Called after bus reset. 507 */ 508 void 509 fw_busreset(struct firewire_comm *fc) 510 { 511 struct firewire_dev_comm *fdc; 512 device_t *devlistp; 513 int devcnt; 514 int i; 515 516 switch(fc->status){ 517 case FWBUSMGRELECT: 518 callout_stop(&fc->bmr_callout); 519 break; 520 default: 521 break; 522 } 523 fc->status = FWBUSRESET; 524 CSRARC(fc, STATE_CLEAR) 525 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 526 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 527 CSRARC(fc, NODE_IDS) = 0x3f; 528 529 CSRARC(fc, TOPO_MAP + 8) = 0; 530 fc->irm = -1; 531 532 fc->max_node = -1; 533 534 for(i = 2; i < 0x100/4 - 2 ; i++){ 535 CSRARC(fc, SPED_MAP + i * 4) = 0; 536 } 537 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 538 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 539 CSRARC(fc, RESET_START) = 0; 540 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 541 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 542 CSRARC(fc, CYCLE_TIME) = 0x0; 543 CSRARC(fc, BUS_TIME) = 0x0; 544 CSRARC(fc, BUS_MGR_ID) = 0x3f; 545 CSRARC(fc, BANDWIDTH_AV) = 4915; 546 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 547 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 548 CSRARC(fc, IP_CHANNELS) = (1 << 31); 549 550 CSRARC(fc, CONF_ROM) = 0x04 << 24; 551 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 552 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 553 1 << 28 | 0xff << 16 | 0x09 << 8; 554 CSRARC(fc, CONF_ROM + 0xc) = 0; 555 556 /* DV depend CSRs see blue book */ 557 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 558 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 559 560 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 561 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 562 563 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 564 for( i = 0 ; i < devcnt ; i++) 565 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 566 fdc = device_get_softc(devlistp[i]); 567 if (fdc->post_busreset != NULL) 568 fdc->post_busreset(fdc); 569 } 570 free(devlistp, M_TEMP); 571 } 572 } 573 574 /* Call once after reboot */ 575 void fw_init(struct firewire_comm *fc) 576 { 577 int i; 578 struct csrdir *csrd; 579 #ifdef FW_VMACCESS 580 struct fw_xfer *xfer; 581 struct fw_bind *fwb; 582 #endif 583 584 fc->max_asyretry = FW_MAXASYRTY; 585 586 fc->arq->queued = 0; 587 fc->ars->queued = 0; 588 fc->atq->queued = 0; 589 fc->ats->queued = 0; 590 591 fc->arq->buf = NULL; 592 fc->ars->buf = NULL; 593 fc->atq->buf = NULL; 594 fc->ats->buf = NULL; 595 596 fc->arq->flag = 0; 597 fc->ars->flag = 0; 598 fc->atq->flag = 0; 599 fc->ats->flag = 0; 600 601 STAILQ_INIT(&fc->atq->q); 602 STAILQ_INIT(&fc->ats->q); 603 604 for( i = 0 ; i < fc->nisodma ; i ++ ){ 605 fc->it[i]->queued = 0; 606 fc->ir[i]->queued = 0; 607 608 fc->it[i]->start = NULL; 609 fc->ir[i]->start = NULL; 610 611 fc->it[i]->buf = NULL; 612 fc->ir[i]->buf = NULL; 613 614 fc->it[i]->flag = FWXFERQ_STREAM; 615 fc->ir[i]->flag = FWXFERQ_STREAM; 616 617 STAILQ_INIT(&fc->it[i]->q); 618 STAILQ_INIT(&fc->ir[i]->q); 619 620 STAILQ_INIT(&fc->it[i]->binds); 621 STAILQ_INIT(&fc->ir[i]->binds); 622 } 623 624 fc->arq->maxq = FWMAXQUEUE; 625 fc->ars->maxq = FWMAXQUEUE; 626 fc->atq->maxq = FWMAXQUEUE; 627 fc->ats->maxq = FWMAXQUEUE; 628 629 for( i = 0 ; i < fc->nisodma ; i++){ 630 fc->ir[i]->maxq = FWMAXQUEUE; 631 fc->it[i]->maxq = FWMAXQUEUE; 632 } 633 /* Initialize csr registers */ 634 fc->topology_map = (struct fw_topology_map *)malloc( 635 sizeof(struct fw_topology_map), 636 M_FW, M_NOWAIT | M_ZERO); 637 fc->speed_map = (struct fw_speed_map *)malloc( 638 sizeof(struct fw_speed_map), 639 M_FW, M_NOWAIT | M_ZERO); 640 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 641 CSRARC(fc, TOPO_MAP + 4) = 1; 642 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 643 CSRARC(fc, SPED_MAP + 4) = 1; 644 645 STAILQ_INIT(&fc->devices); 646 STAILQ_INIT(&fc->pending); 647 648 /* Initialize csr ROM work space */ 649 SLIST_INIT(&fc->ongocsr); 650 SLIST_INIT(&fc->csrfree); 651 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 652 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 653 if(csrd == NULL) break; 654 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 655 } 656 657 /* Initialize Async handlers */ 658 STAILQ_INIT(&fc->binds); 659 for( i = 0 ; i < 0x40 ; i++){ 660 STAILQ_INIT(&fc->tlabels[i]); 661 } 662 663 /* DV depend CSRs see blue book */ 664 #if 0 665 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 666 CSRARC(fc, oPCR) = 0x8000007a; 667 for(i = 4 ; i < 0x7c/4 ; i+=4){ 668 CSRARC(fc, i + oPCR) = 0x8000007a; 669 } 670 671 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 672 CSRARC(fc, iPCR) = 0x803f0000; 673 for(i = 4 ; i < 0x7c/4 ; i+=4){ 674 CSRARC(fc, i + iPCR) = 0x0; 675 } 676 #endif 677 678 679 #ifdef FW_VMACCESS 680 xfer = fw_xfer_alloc(); 681 if(xfer == NULL) return; 682 683 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 684 if(fwb == NULL){ 685 fw_xfer_free(xfer); 686 } 687 xfer->act.hand = fw_vmaccess; 688 xfer->fc = fc; 689 xfer->sc = NULL; 690 691 fwb->start_hi = 0x2; 692 fwb->start_lo = 0; 693 fwb->addrlen = 0xffffffff; 694 fwb->xfer = xfer; 695 fw_bindadd(fc, fwb); 696 #endif 697 } 698 699 /* 700 * To lookup binded process from IEEE1394 address. 701 */ 702 struct fw_bind * 703 fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 704 { 705 struct fw_bind *tfw; 706 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 707 tfw = STAILQ_NEXT(tfw, fclist)){ 708 if (tfw->act_type != FWACT_NULL && 709 tfw->start_hi == dest_hi && 710 tfw->start_lo <= dest_lo && 711 (tfw->start_lo + tfw->addrlen) > dest_lo){ 712 return(tfw); 713 } 714 } 715 return(NULL); 716 } 717 718 /* 719 * To bind IEEE1394 address block to process. 720 */ 721 int 722 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 723 { 724 struct fw_bind *tfw, *tfw2 = NULL; 725 int err = 0; 726 tfw = STAILQ_FIRST(&fc->binds); 727 if(tfw == NULL){ 728 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 729 goto out; 730 } 731 if((tfw->start_hi > fwb->start_hi) || 732 (tfw->start_hi == fwb->start_hi && 733 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 734 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 735 goto out; 736 } 737 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 738 if((tfw->start_hi < fwb->start_hi) || 739 (tfw->start_hi == fwb->start_hi && 740 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 741 tfw2 = STAILQ_NEXT(tfw, fclist); 742 if(tfw2 == NULL) 743 break; 744 if((tfw2->start_hi > fwb->start_hi) || 745 (tfw2->start_hi == fwb->start_hi && 746 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 747 break; 748 }else{ 749 err = EBUSY; 750 goto out; 751 } 752 } 753 } 754 if(tfw != NULL){ 755 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 756 }else{ 757 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 758 } 759 out: 760 if (!err && fwb->act_type == FWACT_CH) 761 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 762 return err; 763 } 764 765 /* 766 * To free IEEE1394 address block. 767 */ 768 int 769 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 770 { 771 int s; 772 struct fw_xfer *xfer, *next; 773 774 s = splfw(); 775 /* shall we check the existance? */ 776 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 777 /* shall we do this? */ 778 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 779 next = STAILQ_NEXT(xfer, link); 780 fw_xfer_free(xfer); 781 } 782 STAILQ_INIT(&fwb->xferlist); 783 784 splx(s); 785 return 0; 786 } 787 788 /* 789 * To free transaction label. 790 */ 791 static void 792 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 793 { 794 struct tlabel *tl; 795 int s = splfw(); 796 797 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 798 tl = STAILQ_NEXT(tl, link)){ 799 if(tl->xfer == xfer){ 800 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 801 free(tl, M_FW); 802 splx(s); 803 return; 804 } 805 } 806 splx(s); 807 return; 808 } 809 810 /* 811 * To obtain XFER structure by transaction label. 812 */ 813 static struct fw_xfer * 814 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 815 { 816 struct fw_xfer *xfer; 817 struct tlabel *tl; 818 int s = splfw(); 819 820 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 821 tl = STAILQ_NEXT(tl, link)){ 822 if(tl->xfer->dst == node){ 823 xfer = tl->xfer; 824 splx(s); 825 if (firewire_debug > 2) 826 printf("fw_tl2xfer: found tl=%d\n", tlabel); 827 return(xfer); 828 } 829 } 830 if (firewire_debug > 1) 831 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 832 splx(s); 833 return(NULL); 834 } 835 836 /* 837 * To allocate IEEE1394 XFER structure. 838 */ 839 struct fw_xfer * 840 fw_xfer_alloc(struct malloc_type *type) 841 { 842 struct fw_xfer *xfer; 843 844 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 845 if (xfer == NULL) 846 return xfer; 847 848 microtime(&xfer->tv); 849 xfer->malloc = type; 850 851 return xfer; 852 } 853 854 struct fw_xfer * 855 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 856 { 857 struct fw_xfer *xfer; 858 859 xfer = fw_xfer_alloc(type); 860 xfer->send.len = send_len; 861 xfer->recv.len = recv_len; 862 if (xfer == NULL) 863 return(NULL); 864 if (send_len) { 865 xfer->send.buf = malloc(send_len, type, M_NOWAIT | M_ZERO); 866 if (xfer->send.buf == NULL) { 867 fw_xfer_free(xfer); 868 return(NULL); 869 } 870 } 871 if (recv_len) { 872 xfer->recv.buf = malloc(recv_len, type, M_NOWAIT); 873 if (xfer->recv.buf == NULL) { 874 if (xfer->send.buf != NULL) 875 free(xfer->send.buf, type); 876 fw_xfer_free(xfer); 877 return(NULL); 878 } 879 } 880 return(xfer); 881 } 882 883 /* 884 * IEEE1394 XFER post process. 885 */ 886 void 887 fw_xfer_done(struct fw_xfer *xfer) 888 { 889 if (xfer->act.hand == NULL) 890 return; 891 892 if (xfer->fc->status != FWBUSRESET) 893 xfer->act.hand(xfer); 894 else { 895 printf("fw_xfer_done: pending\n"); 896 if (xfer->fc != NULL) 897 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 898 else 899 panic("fw_xfer_done: why xfer->fc is NULL?"); 900 } 901 } 902 903 void 904 fw_xfer_unload(struct fw_xfer* xfer) 905 { 906 int s; 907 908 if(xfer == NULL ) return; 909 if(xfer->state == FWXF_INQ){ 910 printf("fw_xfer_free FWXF_INQ\n"); 911 s = splfw(); 912 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 913 xfer->q->queued --; 914 splx(s); 915 } 916 if (xfer->fc != NULL) { 917 #if 1 918 if(xfer->state == FWXF_START) 919 /* 920 * This could happen if: 921 * 1. We call fwohci_arcv() before fwohci_txd(). 922 * 2. firewire_watch() is called. 923 */ 924 printf("fw_xfer_free FWXF_START\n"); 925 #endif 926 fw_tl_free(xfer->fc, xfer); 927 } 928 xfer->state = FWXF_INIT; 929 xfer->resp = 0; 930 xfer->retry = 0; 931 } 932 /* 933 * To free IEEE1394 XFER structure. 934 */ 935 void 936 fw_xfer_free( struct fw_xfer* xfer) 937 { 938 if(xfer == NULL ) return; 939 fw_xfer_unload(xfer); 940 if(xfer->send.buf != NULL){ 941 free(xfer->send.buf, xfer->malloc); 942 } 943 if(xfer->recv.buf != NULL){ 944 free(xfer->recv.buf, xfer->malloc); 945 } 946 free(xfer, xfer->malloc); 947 } 948 949 static void 950 fw_asy_callback_free(struct fw_xfer *xfer) 951 { 952 #if 0 953 printf("asyreq done state=%d resp=%d\n", 954 xfer->state, xfer->resp); 955 #endif 956 fw_xfer_free(xfer); 957 } 958 959 /* 960 * To configure PHY. 961 */ 962 static void 963 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 964 { 965 struct fw_xfer *xfer; 966 struct fw_pkt *fp; 967 968 fc->status = FWBUSPHYCONF; 969 970 xfer = fw_xfer_alloc_buf(M_FWXFER, 12, 0); 971 if (xfer == NULL) 972 return; 973 xfer->fc = fc; 974 xfer->retry_req = fw_asybusy; 975 xfer->act.hand = fw_asy_callback_free; 976 977 fp = (struct fw_pkt *)xfer->send.buf; 978 fp->mode.ld[1] = 0; 979 if (root_node >= 0) 980 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 981 if (gap_count >= 0) 982 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 983 fp->mode.ld[2] = ~fp->mode.ld[1]; 984 /* XXX Dangerous, how to pass PHY packet to device driver */ 985 fp->mode.common.tcode |= FWTCODE_PHY; 986 987 if (firewire_debug) 988 printf("send phy_config root_node=%d gap_count=%d\n", 989 root_node, gap_count); 990 fw_asyreq(fc, -1, xfer); 991 } 992 993 #if 0 994 /* 995 * Dump self ID. 996 */ 997 static void 998 fw_print_sid(u_int32_t sid) 999 { 1000 union fw_self_id *s; 1001 s = (union fw_self_id *) &sid; 1002 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1003 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1004 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1005 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1006 s->p0.power_class, s->p0.port0, s->p0.port1, 1007 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1008 } 1009 #endif 1010 1011 /* 1012 * To receive self ID. 1013 */ 1014 void fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) 1015 { 1016 u_int32_t *p; 1017 union fw_self_id *self_id; 1018 u_int i, j, node, c_port = 0, i_branch = 0; 1019 1020 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1021 fc->status = FWBUSINIT; 1022 fc->max_node = fc->nodeid & 0x3f; 1023 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1024 fc->status = FWBUSCYMELECT; 1025 fc->topology_map->crc_len = 2; 1026 fc->topology_map->generation ++; 1027 fc->topology_map->self_id_count = 0; 1028 fc->topology_map->node_count = 0; 1029 fc->speed_map->generation ++; 1030 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1031 self_id = &fc->topology_map->self_id[0]; 1032 for(i = 0; i < fc->sid_cnt; i ++){ 1033 if (sid[1] != ~sid[0]) { 1034 printf("fw_sidrcv: invalid self-id packet\n"); 1035 sid += 2; 1036 continue; 1037 } 1038 *self_id = *((union fw_self_id *)sid); 1039 fc->topology_map->crc_len++; 1040 if(self_id->p0.sequel == 0){ 1041 fc->topology_map->node_count ++; 1042 c_port = 0; 1043 #if 0 1044 fw_print_sid(sid[0]); 1045 #endif 1046 node = self_id->p0.phy_id; 1047 if(fc->max_node < node){ 1048 fc->max_node = self_id->p0.phy_id; 1049 } 1050 /* XXX I'm not sure this is the right speed_map */ 1051 fc->speed_map->speed[node][node] 1052 = self_id->p0.phy_speed; 1053 for (j = 0; j < node; j ++) { 1054 fc->speed_map->speed[j][node] 1055 = fc->speed_map->speed[node][j] 1056 = min(fc->speed_map->speed[j][j], 1057 self_id->p0.phy_speed); 1058 } 1059 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1060 (self_id->p0.link_active && self_id->p0.contender)) { 1061 fc->irm = self_id->p0.phy_id; 1062 } 1063 if(self_id->p0.port0 >= 0x2){ 1064 c_port++; 1065 } 1066 if(self_id->p0.port1 >= 0x2){ 1067 c_port++; 1068 } 1069 if(self_id->p0.port2 >= 0x2){ 1070 c_port++; 1071 } 1072 } 1073 if(c_port > 2){ 1074 i_branch += (c_port - 2); 1075 } 1076 sid += 2; 1077 self_id++; 1078 fc->topology_map->self_id_count ++; 1079 } 1080 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1081 /* CRC */ 1082 fc->topology_map->crc = fw_crc16( 1083 (u_int32_t *)&fc->topology_map->generation, 1084 fc->topology_map->crc_len * 4); 1085 fc->speed_map->crc = fw_crc16( 1086 (u_int32_t *)&fc->speed_map->generation, 1087 fc->speed_map->crc_len * 4); 1088 /* byteswap and copy to CSR */ 1089 p = (u_int32_t *)fc->topology_map; 1090 for (i = 0; i <= fc->topology_map->crc_len; i++) 1091 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1092 p = (u_int32_t *)fc->speed_map; 1093 CSRARC(fc, SPED_MAP) = htonl(*p++); 1094 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1095 /* don't byte-swap u_int8_t array */ 1096 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1097 1098 fc->max_hop = fc->max_node - i_branch; 1099 printf(", maxhop <= %d", fc->max_hop); 1100 1101 if(fc->irm == -1 ){ 1102 printf(", Not found IRM capable node"); 1103 }else{ 1104 printf(", cable IRM = %d", fc->irm); 1105 if (fc->irm == fc->nodeid) 1106 printf(" (me)"); 1107 } 1108 printf("\n"); 1109 1110 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1111 if (fc->irm == fc->nodeid) { 1112 fc->status = FWBUSMGRDONE; 1113 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1114 fw_bmr(fc); 1115 } else { 1116 fc->status = FWBUSMGRELECT; 1117 callout_reset(&fc->bmr_callout, hz/8, 1118 (void *)fw_try_bmr, (void *)fc); 1119 } 1120 } else 1121 fc->status = FWBUSMGRDONE; 1122 1123 callout_reset(&fc->busprobe_callout, hz/4, 1124 (void *)fw_bus_probe, (void *)fc); 1125 } 1126 1127 /* 1128 * To probe devices on the IEEE1394 bus. 1129 */ 1130 static void 1131 fw_bus_probe(struct firewire_comm *fc) 1132 { 1133 int s; 1134 struct fw_device *fwdev, *next; 1135 1136 s = splfw(); 1137 fc->status = FWBUSEXPLORE; 1138 fc->retry_count = 0; 1139 1140 /* 1141 * Invalidate all devices, just after bus reset. Devices 1142 * to be removed has not been seen longer time. 1143 */ 1144 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1145 next = STAILQ_NEXT(fwdev, link); 1146 if (fwdev->status != FWDEVINVAL) { 1147 fwdev->status = FWDEVINVAL; 1148 fwdev->rcnt = 0; 1149 } else if(fwdev->rcnt < FW_MAXDEVRCNT) { 1150 fwdev->rcnt ++; 1151 } else { 1152 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1153 free(fwdev, M_FW); 1154 } 1155 } 1156 fc->ongonode = 0; 1157 fc->ongoaddr = CSRROMOFF; 1158 fc->ongodev = NULL; 1159 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1160 fw_bus_explore(fc); 1161 splx(s); 1162 } 1163 1164 /* 1165 * To collect device informations on the IEEE1394 bus. 1166 */ 1167 static void 1168 fw_bus_explore(struct firewire_comm *fc ) 1169 { 1170 int err = 0; 1171 struct fw_device *fwdev, *pfwdev, *tfwdev; 1172 u_int32_t addr; 1173 struct fw_xfer *xfer; 1174 struct fw_pkt *fp; 1175 1176 if(fc->status != FWBUSEXPLORE) 1177 return; 1178 1179 loop: 1180 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1181 1182 if(fc->ongonode > fc->max_node) goto done; 1183 if(fc->ongonode >= 0x3f) goto done; 1184 1185 /* check link */ 1186 /* XXX we need to check phy_id first */ 1187 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1188 if (firewire_debug) 1189 printf("node%d: link down\n", fc->ongonode); 1190 fc->ongonode++; 1191 goto loop; 1192 } 1193 1194 if(fc->ongoaddr <= CSRROMOFF && 1195 fc->ongoeui.hi == 0xffffffff && 1196 fc->ongoeui.lo == 0xffffffff ){ 1197 fc->ongoaddr = CSRROMOFF; 1198 addr = 0xf0000000 | fc->ongoaddr; 1199 }else if(fc->ongoeui.hi == 0xffffffff ){ 1200 fc->ongoaddr = CSRROMOFF + 0xc; 1201 addr = 0xf0000000 | fc->ongoaddr; 1202 }else if(fc->ongoeui.lo == 0xffffffff ){ 1203 fc->ongoaddr = CSRROMOFF + 0x10; 1204 addr = 0xf0000000 | fc->ongoaddr; 1205 }else if(fc->ongodev == NULL){ 1206 STAILQ_FOREACH(fwdev, &fc->devices, link) 1207 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1208 break; 1209 if(fwdev != NULL){ 1210 fwdev->dst = fc->ongonode; 1211 fwdev->status = FWDEVATTACHED; 1212 fc->ongonode++; 1213 fc->ongoaddr = CSRROMOFF; 1214 fc->ongodev = NULL; 1215 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1216 goto loop; 1217 } 1218 fwdev = malloc(sizeof(struct fw_device), M_FW, 1219 M_NOWAIT | M_ZERO); 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; 1284 done: 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 */ 1295 struct fw_xfer * 1296 asyreqq(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 */ 1336 static void 1337 fw_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 goto errnode; 1361 } 1362 1363 if(xfer->send.buf == NULL){ 1364 printf("node%d: send.buf=NULL addr=0x%x\n", 1365 fc->ongonode, fc->ongoaddr); 1366 goto errnode; 1367 } 1368 sfp = (struct fw_pkt *)xfer->send.buf; 1369 1370 if(xfer->recv.buf == NULL){ 1371 printf("node%d: recv.buf=NULL addr=0x%x\n", 1372 fc->ongonode, fc->ongoaddr); 1373 goto errnode; 1374 } 1375 rfp = (struct fw_pkt *)xfer->recv.buf; 1376 #if 0 1377 { 1378 u_int32_t *qld; 1379 int i; 1380 qld = (u_int32_t *)xfer->recv.buf; 1381 printf("len:%d\n", xfer->recv.len); 1382 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1383 printf("0x%08x ", rfp->mode.ld[i/4]); 1384 if((i % 16) == 15) printf("\n"); 1385 } 1386 if((i % 16) != 15) printf("\n"); 1387 } 1388 #endif 1389 if(fc->ongodev == NULL){ 1390 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1391 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1392 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1393 /* If CSR is minimal confinguration, more investgation is not needed. */ 1394 if(chdr->info_len == 1){ 1395 if (firewire_debug) 1396 printf("node%d: minimal config\n", 1397 fc->ongonode); 1398 goto nextnode; 1399 }else{ 1400 fc->ongoaddr = CSRROMOFF + 0xc; 1401 } 1402 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1403 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1404 fc->ongoaddr = CSRROMOFF + 0x10; 1405 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1406 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1407 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1408 if (firewire_debug) 1409 printf("node%d: eui64 is zero.\n", 1410 fc->ongonode); 1411 goto nextnode; 1412 } 1413 fc->ongoaddr = CSRROMOFF; 1414 } 1415 }else{ 1416 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1417 if(fc->ongoaddr > fc->ongodev->rommax){ 1418 fc->ongodev->rommax = fc->ongoaddr; 1419 } 1420 csrd = SLIST_FIRST(&fc->ongocsr); 1421 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1422 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1423 offset = CSRROMOFF; 1424 }else{ 1425 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1426 offset = csrd->off; 1427 } 1428 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1429 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1430 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1431 csrd = SLIST_FIRST(&fc->csrfree); 1432 if(csrd == NULL){ 1433 goto nextnode; 1434 }else{ 1435 csrd->ongoaddr = fc->ongoaddr; 1436 fc->ongoaddr += csrreg->val * 4; 1437 csrd->off = fc->ongoaddr; 1438 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1439 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1440 goto nextaddr; 1441 } 1442 } 1443 } 1444 fc->ongoaddr += 4; 1445 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1446 (fc->ongodev->rommax < 0x414)){ 1447 if(fc->ongodev->rommax <= 0x414){ 1448 csrd = SLIST_FIRST(&fc->csrfree); 1449 if(csrd == NULL) goto nextnode; 1450 csrd->off = fc->ongoaddr; 1451 csrd->ongoaddr = fc->ongoaddr; 1452 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1453 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1454 } 1455 goto nextaddr; 1456 } 1457 1458 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1459 if(csrd == NULL){ 1460 goto nextnode; 1461 }; 1462 fc->ongoaddr = csrd->ongoaddr + 4; 1463 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1464 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1465 csrd = SLIST_FIRST(&fc->ongocsr); 1466 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1467 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1468 offset = CSRROMOFF; 1469 }else{ 1470 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1471 offset = csrd->off; 1472 } 1473 } 1474 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1475 goto nextnode; 1476 } 1477 } 1478 nextaddr: 1479 fw_xfer_free( xfer); 1480 fw_bus_explore(fc); 1481 return; 1482 errnode: 1483 fc->retry_count++; 1484 if (fc->ongodev != NULL) 1485 fc->ongodev->status = FWDEVINVAL; 1486 nextnode: 1487 fw_xfer_free( xfer); 1488 fc->ongonode++; 1489 /* housekeeping work space */ 1490 fc->ongoaddr = CSRROMOFF; 1491 fc->ongodev = NULL; 1492 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1493 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1494 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1495 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1496 } 1497 fw_bus_explore(fc); 1498 return; 1499 } 1500 1501 /* 1502 * To attach sub-devices layer onto IEEE1394 bus. 1503 */ 1504 static void 1505 fw_attach_dev(struct firewire_comm *fc) 1506 { 1507 struct fw_device *fwdev; 1508 struct fw_xfer *xfer; 1509 int i, err; 1510 device_t *devlistp; 1511 int devcnt; 1512 struct firewire_dev_comm *fdc; 1513 1514 STAILQ_FOREACH(fwdev, &fc->devices, link) 1515 if (fwdev->status == FWDEVINIT) 1516 fwdev->status = FWDEVATTACHED; 1517 1518 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1519 if( err != 0 ) 1520 return; 1521 for( i = 0 ; i < devcnt ; i++){ 1522 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1523 fdc = device_get_softc(devlistp[i]); 1524 if (fdc->post_explore != NULL) 1525 fdc->post_explore(fdc); 1526 } 1527 } 1528 free(devlistp, M_TEMP); 1529 1530 /* call pending handlers */ 1531 i = 0; 1532 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1533 STAILQ_REMOVE_HEAD(&fc->pending, link); 1534 i++; 1535 if (xfer->act.hand) 1536 xfer->act.hand(xfer); 1537 } 1538 if (i > 0) 1539 printf("fw_attach_dev: %d pending handlers called\n", i); 1540 if (fc->retry_count > 0) { 1541 printf("probe failed for %d node\n", fc->retry_count); 1542 #if 0 1543 callout_reset(&fc->retry_probe_callout, hz*2, 1544 (void *)fc->ibr, (void *)fc); 1545 #endif 1546 } 1547 return; 1548 } 1549 1550 /* 1551 * To allocate uniq transaction label. 1552 */ 1553 static int 1554 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1555 { 1556 u_int i; 1557 struct tlabel *tl, *tmptl; 1558 int s; 1559 static u_int32_t label = 0; 1560 1561 s = splfw(); 1562 for( i = 0 ; i < 0x40 ; i ++){ 1563 label = (label + 1) & 0x3f; 1564 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1565 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1566 if(tmptl->xfer->dst == xfer->dst) break; 1567 } 1568 if(tmptl == NULL) { 1569 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1570 if (tl == NULL) { 1571 splx(s); 1572 return (-1); 1573 } 1574 tl->xfer = xfer; 1575 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1576 splx(s); 1577 if (firewire_debug > 1) 1578 printf("fw_get_tlabel: dst=%d tl=%d\n", 1579 xfer->dst, label); 1580 return(label); 1581 } 1582 } 1583 splx(s); 1584 1585 printf("fw_get_tlabel: no free tlabel\n"); 1586 return(-1); 1587 } 1588 1589 static void 1590 fw_rcv_copy(struct fw_xfer *xfer, struct iovec *vec, int nvec) 1591 { 1592 char *p; 1593 int res, i, len; 1594 1595 p = xfer->recv.buf; 1596 res = xfer->recv.len; 1597 for (i = 0; i < nvec; i++, vec++) { 1598 len = vec->iov_len; 1599 if (res < len) { 1600 printf("rcv buffer(%d) is %d bytes short.\n", 1601 xfer->recv.len, len - res); 1602 len = res; 1603 } 1604 bcopy(vec->iov_base, p, len); 1605 p += len; 1606 res -= len; 1607 if (res <= 0) 1608 break; 1609 } 1610 xfer->recv.len -= res; 1611 } 1612 1613 /* 1614 * Generic packet receving process. 1615 */ 1616 void 1617 fw_rcv(struct firewire_comm *fc, struct iovec *vec, int nvec, u_int sub, u_int spd) 1618 { 1619 struct fw_pkt *fp, *resfp; 1620 struct fw_xfer *xfer; 1621 struct fw_bind *bind; 1622 struct firewire_softc *sc; 1623 int tcode, s; 1624 int i, len, oldstate; 1625 #if 0 1626 { 1627 u_int32_t *qld; 1628 int i; 1629 qld = (u_int32_t *)buf; 1630 printf("spd %d len:%d\n", spd, len); 1631 for( i = 0 ; i <= len && i < 32; i+= 4){ 1632 printf("0x%08x ", ntohl(qld[i/4])); 1633 if((i % 16) == 15) printf("\n"); 1634 } 1635 if((i % 16) != 15) printf("\n"); 1636 } 1637 #endif 1638 fp = (struct fw_pkt *)vec[0].iov_base; 1639 tcode = fp->mode.common.tcode; 1640 #if 0 /* XXX this check is not valid for RRESQ and WREQQ */ 1641 if (vec[0].iov_len < fc->tcode[tcode].hdr_len) { 1642 #if __FreeBSD_version >= 500000 1643 printf("fw_rcv: iov_len(%zu) is less than" 1644 #else 1645 printf("fw_rcv: iov_len(%u) is less than" 1646 #endif 1647 " hdr_len(%d:tcode=%d)\n", vec[0].iov_len, 1648 fc->tcode[tcode].hdr_len, tcode); 1649 } 1650 #endif 1651 switch (tcode) { 1652 case FWTCODE_WRES: 1653 case FWTCODE_RRESQ: 1654 case FWTCODE_RRESB: 1655 case FWTCODE_LRES: 1656 xfer = fw_tl2xfer(fc, fp->mode.hdr.src, 1657 fp->mode.hdr.tlrt >> 2); 1658 if(xfer == NULL) { 1659 printf("fw_rcv: unknown response " 1660 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n", 1661 tcode, 1662 fp->mode.hdr.src, 1663 fp->mode.hdr.tlrt >> 2, 1664 fp->mode.hdr.tlrt & 3, 1665 fp->mode.rresq.data); 1666 #if 1 1667 printf("try ad-hoc work around!!\n"); 1668 xfer = fw_tl2xfer(fc, fp->mode.hdr.src, 1669 (fp->mode.hdr.tlrt >> 2)^3); 1670 if (xfer == NULL) { 1671 printf("no use...\n"); 1672 goto err; 1673 } 1674 #else 1675 goto err; 1676 #endif 1677 } 1678 fw_rcv_copy(xfer, vec, nvec); 1679 xfer->resp = 0; 1680 /* make sure the packet is drained in AT queue */ 1681 oldstate = xfer->state; 1682 xfer->state = FWXF_RCVD; 1683 switch (oldstate) { 1684 case FWXF_SENT: 1685 fw_xfer_done(xfer); 1686 break; 1687 case FWXF_START: 1688 if (firewire_debug) 1689 printf("not sent yet\n"); 1690 break; 1691 default: 1692 printf("unexpected state %d\n", xfer->state); 1693 } 1694 return; 1695 case FWTCODE_WREQQ: 1696 case FWTCODE_WREQB: 1697 case FWTCODE_RREQQ: 1698 case FWTCODE_RREQB: 1699 case FWTCODE_LREQ: 1700 bind = fw_bindlookup(fc, fp->mode.rreqq.dest_hi, 1701 fp->mode.rreqq.dest_lo); 1702 if(bind == NULL){ 1703 #if __FreeBSD_version >= 500000 1704 printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%x\n", 1705 #else 1706 printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%lx\n", 1707 #endif 1708 fp->mode.wreqq.dest_hi, 1709 fp->mode.wreqq.dest_lo, 1710 tcode, 1711 fp->mode.hdr.src, 1712 ntohl(fp->mode.wreqq.data)); 1713 if (fc->status == FWBUSRESET) { 1714 printf("fw_rcv: cannot respond(bus reset)!\n"); 1715 goto err; 1716 } 1717 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 0); 1718 if(xfer == NULL){ 1719 return; 1720 } 1721 xfer->spd = spd; 1722 resfp = (struct fw_pkt *)xfer->send.buf; 1723 switch (tcode) { 1724 case FWTCODE_WREQQ: 1725 case FWTCODE_WREQB: 1726 resfp->mode.hdr.tcode = FWTCODE_WRES; 1727 xfer->send.len = 12; 1728 break; 1729 case FWTCODE_RREQQ: 1730 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1731 xfer->send.len = 16; 1732 break; 1733 case FWTCODE_RREQB: 1734 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1735 xfer->send.len = 16; 1736 break; 1737 case FWTCODE_LREQ: 1738 resfp->mode.hdr.tcode = FWTCODE_LRES; 1739 xfer->send.len = 16; 1740 break; 1741 } 1742 resfp->mode.hdr.dst = fp->mode.hdr.src; 1743 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1744 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1745 resfp->mode.rresb.rtcode = 7; 1746 resfp->mode.rresb.extcode = 0; 1747 resfp->mode.rresb.len = 0; 1748 /* 1749 xfer->act.hand = fw_asy_callback; 1750 */ 1751 xfer->act.hand = fw_xfer_free; 1752 if(fw_asyreq(fc, -1, xfer)){ 1753 fw_xfer_free( xfer); 1754 return; 1755 } 1756 goto err; 1757 } 1758 len = 0; 1759 for (i = 0; i < nvec; i ++) 1760 len += vec[i].iov_len; 1761 switch(bind->act_type){ 1762 case FWACT_XFER: 1763 /* splfw()?? */ 1764 xfer = STAILQ_FIRST(&bind->xferlist); 1765 if (xfer == NULL) { 1766 printf("Discard a packet for this bind.\n"); 1767 goto err; 1768 } 1769 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1770 fw_rcv_copy(xfer, vec, nvec); 1771 xfer->spd = spd; 1772 if (fc->status != FWBUSRESET) 1773 xfer->act.hand(xfer); 1774 else 1775 STAILQ_INSERT_TAIL(&fc->pending, xfer, link); 1776 return; 1777 break; 1778 case FWACT_CH: 1779 if(fc->ir[bind->sub]->queued >= 1780 fc->ir[bind->sub]->maxq){ 1781 device_printf(fc->bdev, 1782 "Discard a packet %x %d\n", 1783 bind->sub, 1784 fc->ir[bind->sub]->queued); 1785 goto err; 1786 } 1787 xfer = STAILQ_FIRST(&bind->xferlist); 1788 if (xfer == NULL) { 1789 printf("Discard packet for this bind\n"); 1790 goto err; 1791 } 1792 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1793 fw_rcv_copy(xfer, vec, nvec); 1794 xfer->spd = spd; 1795 s = splfw(); 1796 fc->ir[bind->sub]->queued++; 1797 STAILQ_INSERT_TAIL(&fc->ir[bind->sub]->q, xfer, link); 1798 splx(s); 1799 1800 wakeup((caddr_t)fc->ir[bind->sub]); 1801 1802 return; 1803 break; 1804 default: 1805 goto err; 1806 break; 1807 } 1808 break; 1809 case FWTCODE_STREAM: 1810 { 1811 struct fw_xferq *xferq; 1812 1813 xferq = fc->ir[sub]; 1814 #if 0 1815 printf("stream rcv dma %d len %d off %d spd %d\n", 1816 sub, len, off, spd); 1817 #endif 1818 if(xferq->queued >= xferq->maxq) { 1819 printf("receive queue is full\n"); 1820 goto err; 1821 } 1822 /* XXX get xfer from xfer queue, we don't need copy for 1823 per packet mode */ 1824 xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1825 vec[0].iov_len); 1826 if(xfer == NULL) goto err; 1827 fw_rcv_copy(xfer, vec, nvec); 1828 xfer->spd = spd; 1829 s = splfw(); 1830 xferq->queued++; 1831 STAILQ_INSERT_TAIL(&xferq->q, xfer, link); 1832 splx(s); 1833 sc = device_get_softc(fc->bdev); 1834 #if __FreeBSD_version >= 500000 1835 if (SEL_WAITING(&xferq->rsel)) 1836 #else 1837 if (&xferq->rsel.si_pid != 0) 1838 #endif 1839 selwakeup(&xferq->rsel); 1840 if (xferq->flag & FWXFERQ_WAKEUP) { 1841 xferq->flag &= ~FWXFERQ_WAKEUP; 1842 wakeup((caddr_t)xferq); 1843 } 1844 if (xferq->flag & FWXFERQ_HANDLER) { 1845 xferq->hand(xferq); 1846 } 1847 return; 1848 break; 1849 } 1850 default: 1851 printf("fw_rcv: unknow tcode %d\n", tcode); 1852 break; 1853 } 1854 err: 1855 return; 1856 } 1857 1858 /* 1859 * Post process for Bus Manager election process. 1860 */ 1861 static void 1862 fw_try_bmr_callback(struct fw_xfer *xfer) 1863 { 1864 struct fw_pkt *rfp; 1865 struct firewire_comm *fc; 1866 int bmr; 1867 1868 if (xfer == NULL) 1869 return; 1870 fc = xfer->fc; 1871 if (xfer->resp != 0) 1872 goto error; 1873 if (xfer->send.buf == NULL) 1874 goto error; 1875 if (xfer->recv.buf == NULL) 1876 goto error; 1877 rfp = (struct fw_pkt *)xfer->recv.buf; 1878 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE) 1879 goto error; 1880 1881 bmr = ntohl(rfp->mode.lres.payload[0]); 1882 if (bmr == 0x3f) 1883 bmr = fc->nodeid; 1884 1885 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 1886 fw_xfer_free(xfer); 1887 fw_bmr(fc); 1888 return; 1889 1890 error: 1891 device_printf(fc->bdev, "bus manager election failed\n"); 1892 fw_xfer_free(xfer); 1893 } 1894 1895 1896 /* 1897 * To candidate Bus Manager election process. 1898 */ 1899 static void 1900 fw_try_bmr(void *arg) 1901 { 1902 struct fw_xfer *xfer; 1903 struct firewire_comm *fc = (struct firewire_comm *)arg; 1904 struct fw_pkt *fp; 1905 int err = 0; 1906 1907 xfer = fw_xfer_alloc_buf(M_FWXFER, 24, 20); 1908 if(xfer == NULL){ 1909 return; 1910 } 1911 xfer->spd = 0; 1912 fc->status = FWBUSMGRELECT; 1913 1914 fp = (struct fw_pkt *)xfer->send.buf; 1915 fp->mode.lreq.dest_hi = 0xffff; 1916 fp->mode.lreq.tlrt = 0; 1917 fp->mode.lreq.tcode = FWTCODE_LREQ; 1918 fp->mode.lreq.pri = 0; 1919 fp->mode.lreq.src = 0; 1920 fp->mode.lreq.len = 8; 1921 fp->mode.lreq.extcode = FW_LREQ_CMPSWAP; 1922 xfer->dst = FWLOCALBUS | fc->irm; 1923 fp->mode.lreq.dst = xfer->dst; 1924 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 1925 fp->mode.lreq.payload[0] = htonl(0x3f); 1926 fp->mode.lreq.payload[1] = htonl(fc->nodeid); 1927 xfer->act.hand = fw_try_bmr_callback; 1928 1929 err = fw_asyreq(fc, -1, xfer); 1930 if(err){ 1931 fw_xfer_free( xfer); 1932 return; 1933 } 1934 return; 1935 } 1936 1937 #ifdef FW_VMACCESS 1938 /* 1939 * Software implementation for physical memory block access. 1940 * XXX:Too slow, usef for debug purpose only. 1941 */ 1942 static void 1943 fw_vmaccess(struct fw_xfer *xfer){ 1944 struct fw_pkt *rfp, *sfp = NULL; 1945 u_int32_t *ld = (u_int32_t *)xfer->recv.buf; 1946 1947 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 1948 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1949 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1950 if(xfer->resp != 0){ 1951 fw_xfer_free( xfer); 1952 return; 1953 } 1954 if(xfer->recv.buf == NULL){ 1955 fw_xfer_free( xfer); 1956 return; 1957 } 1958 rfp = (struct fw_pkt *)xfer->recv.buf; 1959 switch(rfp->mode.hdr.tcode){ 1960 /* XXX need fix for 64bit arch */ 1961 case FWTCODE_WREQB: 1962 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 1963 xfer->send.len = 12; 1964 sfp = (struct fw_pkt *)xfer->send.buf; 1965 bcopy(rfp->mode.wreqb.payload, 1966 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 1967 sfp->mode.wres.tcode = FWTCODE_WRES; 1968 sfp->mode.wres.rtcode = 0; 1969 break; 1970 case FWTCODE_WREQQ: 1971 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 1972 xfer->send.len = 12; 1973 sfp->mode.wres.tcode = FWTCODE_WRES; 1974 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 1975 sfp->mode.wres.rtcode = 0; 1976 break; 1977 case FWTCODE_RREQB: 1978 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 1979 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 1980 sfp = (struct fw_pkt *)xfer->send.buf; 1981 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 1982 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 1983 sfp->mode.rresb.tcode = FWTCODE_RRESB; 1984 sfp->mode.rresb.len = rfp->mode.rreqb.len; 1985 sfp->mode.rresb.rtcode = 0; 1986 sfp->mode.rresb.extcode = 0; 1987 break; 1988 case FWTCODE_RREQQ: 1989 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1990 xfer->send.len = 16; 1991 sfp = (struct fw_pkt *)xfer->send.buf; 1992 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 1993 sfp->mode.wres.tcode = FWTCODE_RRESQ; 1994 sfp->mode.rresb.rtcode = 0; 1995 break; 1996 default: 1997 fw_xfer_free( xfer); 1998 return; 1999 } 2000 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2001 xfer->dst = ntohs(rfp->mode.hdr.src); 2002 xfer->act.hand = fw_xfer_free; 2003 xfer->retry_req = fw_asybusy; 2004 2005 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2006 sfp->mode.hdr.pri = 0; 2007 2008 fw_asyreq(xfer->fc, -1, xfer); 2009 /**/ 2010 return; 2011 } 2012 #endif 2013 2014 /* 2015 * CRC16 check-sum for IEEE1394 register blocks. 2016 */ 2017 u_int16_t 2018 fw_crc16(u_int32_t *ptr, u_int32_t len){ 2019 u_int32_t i, sum, crc = 0; 2020 int shift; 2021 len = (len + 3) & ~3; 2022 for(i = 0 ; i < len ; i+= 4){ 2023 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2024 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2025 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2026 } 2027 crc &= 0xffff; 2028 } 2029 return((u_int16_t) crc); 2030 } 2031 2032 static int 2033 fw_bmr(struct firewire_comm *fc) 2034 { 2035 struct fw_device fwdev; 2036 union fw_self_id *self_id; 2037 int cmstr; 2038 2039 /* Check to see if the current root node is cycle master capable */ 2040 self_id = &fc->topology_map->self_id[fc->max_node]; 2041 if (fc->max_node > 0) { 2042 /* XXX check cmc bit of businfo block rather than contender */ 2043 if (self_id->p0.link_active && self_id->p0.contender) 2044 cmstr = fc->max_node; 2045 else { 2046 device_printf(fc->bdev, 2047 "root node is not cycle master capable\n"); 2048 /* XXX shall we be the cycle master? */ 2049 cmstr = fc->nodeid; 2050 /* XXX need bus reset */ 2051 } 2052 } else 2053 cmstr = -1; 2054 2055 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2056 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2057 /* We are not the bus manager */ 2058 printf("\n"); 2059 return(0); 2060 } 2061 printf("(me)\n"); 2062 2063 /* Optimize gapcount */ 2064 if(fc->max_hop <= MAX_GAPHOP ) 2065 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2066 /* If we are the cycle master, nothing to do */ 2067 if (cmstr == fc->nodeid || cmstr == -1) 2068 return 0; 2069 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2070 bzero(&fwdev, sizeof(fwdev)); 2071 fwdev.fc = fc; 2072 fwdev.dst = cmstr; 2073 fwdev.speed = 0; 2074 fwdev.maxrec = 8; /* 512 */ 2075 fwdev.status = FWDEVINIT; 2076 /* Set cmstr bit on the cycle master */ 2077 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2078 0xffff, 0xf0000000 | STATE_SET, htonl(1 << 8), 2079 fw_asy_callback_free); 2080 2081 return 0; 2082 } 2083 2084 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); 2085 MODULE_VERSION(firewire, 1); 2086