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 #define MAX_GAPHOP 16 117 u_int gap_cnt[] = {1, 1, 4, 6, 9, 12, 14, 17, 118 20, 23, 25, 28, 31, 33, 36, 39, 42}; 119 120 extern struct cdevsw firewire_cdevsw; 121 122 static driver_t firewire_driver = { 123 "firewire", 124 firewire_methods, 125 sizeof(struct firewire_softc), 126 }; 127 128 /* 129 * Lookup fwdev by node id. 130 */ 131 struct fw_device * 132 fw_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 */ 151 struct fw_device * 152 fw_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 */ 171 int 172 fw_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 */ 243 void 244 fw_asy_callback(struct fw_xfer *xfer){ 245 wakeup(xfer); 246 return; 247 } 248 /* 249 * Postpone to later retry. 250 */ 251 void 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 */ 264 static void 265 fw_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 } 295 296 static int 297 firewire_match( device_t dev ) 298 { 299 device_set_desc(dev, "IEEE1394(FireWire) bus"); 300 return -140; 301 } 302 303 static void 304 firewire_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 } 335 336 static void 337 firewire_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 */ 351 static int 352 firewire_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 */ 413 static device_t 414 firewire_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 */ 432 static int 433 firewire_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 0 472 static int 473 firewire_shutdown( device_t dev ) 474 { 475 return 0; 476 } 477 #endif 478 479 480 static void 481 fw_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 } 492 493 void 494 fw_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 */ 507 void 508 fw_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 */ 574 void 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 */ 701 struct fw_bind * 702 fw_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 */ 720 int 721 fw_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 } 758 out: 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 */ 767 int 768 fw_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 */ 790 static void 791 fw_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 */ 812 static struct fw_xfer * 813 fw_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 */ 838 struct fw_xfer * 839 fw_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 } 852 853 struct fw_xfer * 854 fw_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 */ 885 void 886 fw_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 } 901 902 void 903 fw_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 1 917 if(xfer->state == FWXF_START) 918 /* 919 * This could happen if: 920 * 1. We call fwohci_arcv() before fwohci_txd(). 921 * 2. firewire_watch() is called. 922 */ 923 printf("fw_xfer_free FWXF_START\n"); 924 #endif 925 fw_tl_free(xfer->fc, xfer); 926 } 927 xfer->state = FWXF_INIT; 928 xfer->resp = 0; 929 xfer->retry = 0; 930 } 931 /* 932 * To free IEEE1394 XFER structure. 933 */ 934 void 935 fw_xfer_free( struct fw_xfer* xfer) 936 { 937 if(xfer == NULL ) return; 938 fw_xfer_unload(xfer); 939 if(xfer->send.buf != NULL){ 940 free(xfer->send.buf, xfer->malloc); 941 } 942 if(xfer->recv.buf != NULL){ 943 free(xfer->recv.buf, xfer->malloc); 944 } 945 free(xfer, xfer->malloc); 946 } 947 948 static void 949 fw_asy_callback_free(struct fw_xfer *xfer) 950 { 951 #if 0 952 printf("asyreq done state=%d resp=%d\n", 953 xfer->state, xfer->resp); 954 #endif 955 fw_xfer_free(xfer); 956 } 957 958 /* 959 * To configure PHY. 960 */ 961 static void 962 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 963 { 964 struct fw_xfer *xfer; 965 struct fw_pkt *fp; 966 967 fc->status = FWBUSPHYCONF; 968 969 xfer = fw_xfer_alloc_buf(M_FWXFER, 12, 0); 970 if (xfer == NULL) 971 return; 972 xfer->fc = fc; 973 xfer->retry_req = fw_asybusy; 974 xfer->act.hand = fw_asy_callback_free; 975 976 fp = (struct fw_pkt *)xfer->send.buf; 977 fp->mode.ld[1] = 0; 978 if (root_node >= 0) 979 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 980 if (gap_count >= 0) 981 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 982 fp->mode.ld[2] = ~fp->mode.ld[1]; 983 /* XXX Dangerous, how to pass PHY packet to device driver */ 984 fp->mode.common.tcode |= FWTCODE_PHY; 985 986 if (firewire_debug) 987 printf("send phy_config root_node=%d gap_count=%d\n", 988 root_node, gap_count); 989 fw_asyreq(fc, -1, xfer); 990 } 991 992 #if 0 993 /* 994 * Dump self ID. 995 */ 996 static void 997 fw_print_sid(u_int32_t sid) 998 { 999 union fw_self_id *s; 1000 s = (union fw_self_id *) &sid; 1001 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1002 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1003 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1004 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1005 s->p0.power_class, s->p0.port0, s->p0.port1, 1006 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1007 } 1008 #endif 1009 1010 /* 1011 * To receive self ID. 1012 */ 1013 void fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) 1014 { 1015 u_int32_t *p; 1016 union fw_self_id *self_id; 1017 u_int i, j, node, c_port = 0, i_branch = 0; 1018 1019 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1020 fc->status = FWBUSINIT; 1021 fc->max_node = fc->nodeid & 0x3f; 1022 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1023 fc->status = FWBUSCYMELECT; 1024 fc->topology_map->crc_len = 2; 1025 fc->topology_map->generation ++; 1026 fc->topology_map->self_id_count = 0; 1027 fc->topology_map->node_count = 0; 1028 fc->speed_map->generation ++; 1029 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1030 self_id = &fc->topology_map->self_id[0]; 1031 for(i = 0; i < fc->sid_cnt; i ++){ 1032 if (sid[1] != ~sid[0]) { 1033 printf("fw_sidrcv: invalid self-id packet\n"); 1034 sid += 2; 1035 continue; 1036 } 1037 *self_id = *((union fw_self_id *)sid); 1038 fc->topology_map->crc_len++; 1039 if(self_id->p0.sequel == 0){ 1040 fc->topology_map->node_count ++; 1041 c_port = 0; 1042 #if 0 1043 fw_print_sid(sid[0]); 1044 #endif 1045 node = self_id->p0.phy_id; 1046 if(fc->max_node < node){ 1047 fc->max_node = self_id->p0.phy_id; 1048 } 1049 /* XXX I'm not sure this is the right speed_map */ 1050 fc->speed_map->speed[node][node] 1051 = self_id->p0.phy_speed; 1052 for (j = 0; j < node; j ++) { 1053 fc->speed_map->speed[j][node] 1054 = fc->speed_map->speed[node][j] 1055 = min(fc->speed_map->speed[j][j], 1056 self_id->p0.phy_speed); 1057 } 1058 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1059 (self_id->p0.link_active && self_id->p0.contender)) { 1060 fc->irm = self_id->p0.phy_id; 1061 } 1062 if(self_id->p0.port0 >= 0x2){ 1063 c_port++; 1064 } 1065 if(self_id->p0.port1 >= 0x2){ 1066 c_port++; 1067 } 1068 if(self_id->p0.port2 >= 0x2){ 1069 c_port++; 1070 } 1071 } 1072 if(c_port > 2){ 1073 i_branch += (c_port - 2); 1074 } 1075 sid += 2; 1076 self_id++; 1077 fc->topology_map->self_id_count ++; 1078 } 1079 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1080 /* CRC */ 1081 fc->topology_map->crc = fw_crc16( 1082 (u_int32_t *)&fc->topology_map->generation, 1083 fc->topology_map->crc_len * 4); 1084 fc->speed_map->crc = fw_crc16( 1085 (u_int32_t *)&fc->speed_map->generation, 1086 fc->speed_map->crc_len * 4); 1087 /* byteswap and copy to CSR */ 1088 p = (u_int32_t *)fc->topology_map; 1089 for (i = 0; i <= fc->topology_map->crc_len; i++) 1090 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1091 p = (u_int32_t *)fc->speed_map; 1092 CSRARC(fc, SPED_MAP) = htonl(*p++); 1093 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1094 /* don't byte-swap u_int8_t array */ 1095 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1096 1097 fc->max_hop = fc->max_node - i_branch; 1098 printf(", maxhop <= %d", fc->max_hop); 1099 1100 if(fc->irm == -1 ){ 1101 printf(", Not found IRM capable node"); 1102 }else{ 1103 printf(", cable IRM = %d", fc->irm); 1104 if (fc->irm == fc->nodeid) 1105 printf(" (me)"); 1106 } 1107 printf("\n"); 1108 1109 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1110 if (fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)) { 1111 fc->status = FWBUSMGRDONE; 1112 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1113 } else { 1114 fc->status = FWBUSMGRELECT; 1115 callout_reset(&fc->bmr_callout, hz/8, 1116 (void *)fw_try_bmr, (void *)fc); 1117 } 1118 } else { 1119 fc->status = FWBUSMGRDONE; 1120 #if 0 1121 device_printf(fc->bdev, "BMR = %x\n", 1122 CSRARC(fc, BUS_MGR_ID)); 1123 #endif 1124 } 1125 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ 1126 /* I am BMGR */ 1127 fw_bmr(fc); 1128 } 1129 callout_reset(&fc->busprobe_callout, hz/4, 1130 (void *)fw_bus_probe, (void *)fc); 1131 } 1132 1133 /* 1134 * To probe devices on the IEEE1394 bus. 1135 */ 1136 static void 1137 fw_bus_probe(struct firewire_comm *fc) 1138 { 1139 int s; 1140 struct fw_device *fwdev, *next; 1141 1142 s = splfw(); 1143 fc->status = FWBUSEXPLORE; 1144 fc->retry_count = 0; 1145 1146 /* 1147 * Invalidate all devices, just after bus reset. Devices 1148 * to be removed has not been seen longer time. 1149 */ 1150 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1151 next = STAILQ_NEXT(fwdev, link); 1152 if (fwdev->status != FWDEVINVAL) { 1153 fwdev->status = FWDEVINVAL; 1154 fwdev->rcnt = 0; 1155 } else if(fwdev->rcnt < FW_MAXDEVRCNT) { 1156 fwdev->rcnt ++; 1157 } else { 1158 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1159 free(fwdev, M_FW); 1160 } 1161 } 1162 fc->ongonode = 0; 1163 fc->ongoaddr = CSRROMOFF; 1164 fc->ongodev = NULL; 1165 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1166 fw_bus_explore(fc); 1167 splx(s); 1168 } 1169 1170 /* 1171 * To collect device informations on the IEEE1394 bus. 1172 */ 1173 static void 1174 fw_bus_explore(struct firewire_comm *fc ) 1175 { 1176 int err = 0; 1177 struct fw_device *fwdev, *pfwdev, *tfwdev; 1178 u_int32_t addr; 1179 struct fw_xfer *xfer; 1180 struct fw_pkt *fp; 1181 1182 if(fc->status != FWBUSEXPLORE) 1183 return; 1184 1185 loop: 1186 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1187 1188 if(fc->ongonode > fc->max_node) goto done; 1189 if(fc->ongonode >= 0x3f) goto done; 1190 1191 /* check link */ 1192 /* XXX we need to check phy_id first */ 1193 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1194 if (firewire_debug) 1195 printf("node%d: link down\n", fc->ongonode); 1196 fc->ongonode++; 1197 goto loop; 1198 } 1199 1200 if(fc->ongoaddr <= CSRROMOFF && 1201 fc->ongoeui.hi == 0xffffffff && 1202 fc->ongoeui.lo == 0xffffffff ){ 1203 fc->ongoaddr = CSRROMOFF; 1204 addr = 0xf0000000 | fc->ongoaddr; 1205 }else if(fc->ongoeui.hi == 0xffffffff ){ 1206 fc->ongoaddr = CSRROMOFF + 0xc; 1207 addr = 0xf0000000 | fc->ongoaddr; 1208 }else if(fc->ongoeui.lo == 0xffffffff ){ 1209 fc->ongoaddr = CSRROMOFF + 0x10; 1210 addr = 0xf0000000 | fc->ongoaddr; 1211 }else if(fc->ongodev == NULL){ 1212 STAILQ_FOREACH(fwdev, &fc->devices, link) 1213 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1214 break; 1215 if(fwdev != NULL){ 1216 fwdev->dst = fc->ongonode; 1217 fwdev->status = FWDEVATTACHED; 1218 fc->ongonode++; 1219 fc->ongoaddr = CSRROMOFF; 1220 fc->ongodev = NULL; 1221 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1222 goto loop; 1223 } 1224 fwdev = malloc(sizeof(struct fw_device), M_FW, M_NOWAIT); 1225 if(fwdev == NULL) 1226 return; 1227 fwdev->fc = fc; 1228 fwdev->rommax = 0; 1229 fwdev->dst = fc->ongonode; 1230 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1231 fwdev->status = FWDEVINIT; 1232 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1233 1234 pfwdev = NULL; 1235 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1236 if (tfwdev->eui.hi > fwdev->eui.hi || 1237 (tfwdev->eui.hi == fwdev->eui.hi && 1238 tfwdev->eui.lo > fwdev->eui.lo)) 1239 break; 1240 pfwdev = tfwdev; 1241 } 1242 if (pfwdev == NULL) 1243 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1244 else 1245 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1246 1247 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1248 linkspeed[fwdev->speed], 1249 fc->ongoeui.hi, fc->ongoeui.lo); 1250 1251 fc->ongodev = fwdev; 1252 fc->ongoaddr = CSRROMOFF; 1253 addr = 0xf0000000 | fc->ongoaddr; 1254 }else{ 1255 addr = 0xf0000000 | fc->ongoaddr; 1256 } 1257 #if 0 1258 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1259 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1260 fw_bus_explore_callback); 1261 if(xfer == NULL) goto done; 1262 #else 1263 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 16); 1264 if(xfer == NULL){ 1265 goto done; 1266 } 1267 xfer->spd = 0; 1268 fp = (struct fw_pkt *)xfer->send.buf; 1269 fp->mode.rreqq.dest_hi = 0xffff; 1270 fp->mode.rreqq.tlrt = 0; 1271 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1272 fp->mode.rreqq.pri = 0; 1273 fp->mode.rreqq.src = 0; 1274 xfer->dst = FWLOCALBUS | fc->ongonode; 1275 fp->mode.rreqq.dst = xfer->dst; 1276 fp->mode.rreqq.dest_lo = addr; 1277 xfer->act.hand = fw_bus_explore_callback; 1278 1279 if (firewire_debug) 1280 printf("node%d: explore addr=0x%x\n", 1281 fc->ongonode, fc->ongoaddr); 1282 err = fw_asyreq(fc, -1, xfer); 1283 if(err){ 1284 fw_xfer_free( xfer); 1285 return; 1286 } 1287 #endif 1288 return; 1289 done: 1290 /* fw_attach_devs */ 1291 fc->status = FWBUSEXPDONE; 1292 if (firewire_debug) 1293 printf("bus_explore done\n"); 1294 fw_attach_dev(fc); 1295 return; 1296 1297 } 1298 1299 /* Portable Async. request read quad */ 1300 struct fw_xfer * 1301 asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1302 u_int32_t addr_hi, u_int32_t addr_lo, 1303 void (*hand) __P((struct fw_xfer*))) 1304 { 1305 struct fw_xfer *xfer; 1306 struct fw_pkt *fp; 1307 int err; 1308 1309 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 16); 1310 if (xfer == NULL) 1311 return NULL; 1312 1313 xfer->spd = spd; /* XXX:min(spd, fc->spd) */ 1314 fp = (struct fw_pkt *)xfer->send.buf; 1315 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1316 if(tl & FWP_TL_VALID){ 1317 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1318 }else{ 1319 fp->mode.rreqq.tlrt = 0; 1320 } 1321 fp->mode.rreqq.tlrt |= rt & 0x3; 1322 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1323 fp->mode.rreqq.pri = 0; 1324 fp->mode.rreqq.src = 0; 1325 xfer->dst = addr_hi >> 16; 1326 fp->mode.rreqq.dst = xfer->dst; 1327 fp->mode.rreqq.dest_lo = addr_lo; 1328 xfer->act.hand = hand; 1329 1330 err = fw_asyreq(fc, -1, xfer); 1331 if(err){ 1332 fw_xfer_free( xfer); 1333 return NULL; 1334 } 1335 return xfer; 1336 } 1337 1338 /* 1339 * Callback for the IEEE1394 bus information collection. 1340 */ 1341 static void 1342 fw_bus_explore_callback(struct fw_xfer *xfer) 1343 { 1344 struct firewire_comm *fc; 1345 struct fw_pkt *sfp,*rfp; 1346 struct csrhdr *chdr; 1347 struct csrdir *csrd; 1348 struct csrreg *csrreg; 1349 u_int32_t offset; 1350 1351 1352 if(xfer == NULL) { 1353 printf("xfer == NULL\n"); 1354 return; 1355 } 1356 fc = xfer->fc; 1357 1358 if (firewire_debug) 1359 printf("node%d: callback addr=0x%x\n", 1360 fc->ongonode, fc->ongoaddr); 1361 1362 if(xfer->resp != 0){ 1363 printf("node%d: resp=%d addr=0x%x\n", 1364 fc->ongonode, xfer->resp, fc->ongoaddr); 1365 goto errnode; 1366 } 1367 1368 if(xfer->send.buf == NULL){ 1369 printf("node%d: send.buf=NULL addr=0x%x\n", 1370 fc->ongonode, fc->ongoaddr); 1371 goto errnode; 1372 } 1373 sfp = (struct fw_pkt *)xfer->send.buf; 1374 1375 if(xfer->recv.buf == NULL){ 1376 printf("node%d: recv.buf=NULL addr=0x%x\n", 1377 fc->ongonode, fc->ongoaddr); 1378 goto errnode; 1379 } 1380 rfp = (struct fw_pkt *)xfer->recv.buf; 1381 #if 0 1382 { 1383 u_int32_t *qld; 1384 int i; 1385 qld = (u_int32_t *)xfer->recv.buf; 1386 printf("len:%d\n", xfer->recv.len); 1387 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1388 printf("0x%08x ", rfp->mode.ld[i/4]); 1389 if((i % 16) == 15) printf("\n"); 1390 } 1391 if((i % 16) != 15) printf("\n"); 1392 } 1393 #endif 1394 if(fc->ongodev == NULL){ 1395 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1396 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1397 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1398 /* If CSR is minimal confinguration, more investgation is not needed. */ 1399 if(chdr->info_len == 1){ 1400 if (firewire_debug) 1401 printf("node%d: minimal config\n", 1402 fc->ongonode); 1403 goto nextnode; 1404 }else{ 1405 fc->ongoaddr = CSRROMOFF + 0xc; 1406 } 1407 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1408 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1409 fc->ongoaddr = CSRROMOFF + 0x10; 1410 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1411 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1412 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1413 if (firewire_debug) 1414 printf("node%d: eui64 is zero.\n", 1415 fc->ongonode); 1416 goto nextnode; 1417 } 1418 fc->ongoaddr = CSRROMOFF; 1419 } 1420 }else{ 1421 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1422 if(fc->ongoaddr > fc->ongodev->rommax){ 1423 fc->ongodev->rommax = fc->ongoaddr; 1424 } 1425 csrd = SLIST_FIRST(&fc->ongocsr); 1426 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1427 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1428 offset = CSRROMOFF; 1429 }else{ 1430 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1431 offset = csrd->off; 1432 } 1433 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1434 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1435 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1436 csrd = SLIST_FIRST(&fc->csrfree); 1437 if(csrd == NULL){ 1438 goto nextnode; 1439 }else{ 1440 csrd->ongoaddr = fc->ongoaddr; 1441 fc->ongoaddr += csrreg->val * 4; 1442 csrd->off = fc->ongoaddr; 1443 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1444 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1445 goto nextaddr; 1446 } 1447 } 1448 } 1449 fc->ongoaddr += 4; 1450 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1451 (fc->ongodev->rommax < 0x414)){ 1452 if(fc->ongodev->rommax <= 0x414){ 1453 csrd = SLIST_FIRST(&fc->csrfree); 1454 if(csrd == NULL) goto nextnode; 1455 csrd->off = fc->ongoaddr; 1456 csrd->ongoaddr = fc->ongoaddr; 1457 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1458 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1459 } 1460 goto nextaddr; 1461 } 1462 1463 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1464 if(csrd == NULL){ 1465 goto nextnode; 1466 }; 1467 fc->ongoaddr = csrd->ongoaddr + 4; 1468 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1469 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1470 csrd = SLIST_FIRST(&fc->ongocsr); 1471 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1472 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1473 offset = CSRROMOFF; 1474 }else{ 1475 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1476 offset = csrd->off; 1477 } 1478 } 1479 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1480 goto nextnode; 1481 } 1482 } 1483 nextaddr: 1484 fw_xfer_free( xfer); 1485 fw_bus_explore(fc); 1486 return; 1487 errnode: 1488 fc->retry_count++; 1489 if (fc->ongodev != NULL) 1490 fc->ongodev->status = FWDEVINVAL; 1491 nextnode: 1492 fw_xfer_free( xfer); 1493 fc->ongonode++; 1494 /* housekeeping work space */ 1495 fc->ongoaddr = CSRROMOFF; 1496 fc->ongodev = NULL; 1497 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1498 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1499 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1500 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1501 } 1502 fw_bus_explore(fc); 1503 return; 1504 } 1505 1506 /* 1507 * To attach sub-devices layer onto IEEE1394 bus. 1508 */ 1509 static void 1510 fw_attach_dev(struct firewire_comm *fc) 1511 { 1512 struct fw_device *fwdev; 1513 struct fw_xfer *xfer; 1514 int i, err; 1515 device_t *devlistp; 1516 int devcnt; 1517 struct firewire_dev_comm *fdc; 1518 1519 STAILQ_FOREACH(fwdev, &fc->devices, link) 1520 if (fwdev->status == FWDEVINIT) 1521 fwdev->status = FWDEVATTACHED; 1522 1523 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1524 if( err != 0 ) 1525 return; 1526 for( i = 0 ; i < devcnt ; i++){ 1527 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1528 fdc = device_get_softc(devlistp[i]); 1529 if (fdc->post_explore != NULL) 1530 fdc->post_explore(fdc); 1531 } 1532 } 1533 free(devlistp, M_TEMP); 1534 1535 /* call pending handlers */ 1536 i = 0; 1537 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1538 STAILQ_REMOVE_HEAD(&fc->pending, link); 1539 i++; 1540 if (xfer->act.hand) 1541 xfer->act.hand(xfer); 1542 } 1543 if (i > 0) 1544 printf("fw_attach_dev: %d pending handlers called\n", i); 1545 if (fc->retry_count > 0) { 1546 printf("probe failed for %d node\n", fc->retry_count); 1547 #if 0 1548 callout_reset(&fc->retry_probe_callout, hz*2, 1549 (void *)fc->ibr, (void *)fc); 1550 #endif 1551 } 1552 return; 1553 } 1554 1555 /* 1556 * To allocate uniq transaction label. 1557 */ 1558 static int 1559 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1560 { 1561 u_int i; 1562 struct tlabel *tl, *tmptl; 1563 int s; 1564 static u_int32_t label = 0; 1565 1566 s = splfw(); 1567 for( i = 0 ; i < 0x40 ; i ++){ 1568 label = (label + 1) & 0x3f; 1569 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1570 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1571 if(tmptl->xfer->dst == xfer->dst) break; 1572 } 1573 if(tmptl == NULL) { 1574 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1575 if (tl == NULL) { 1576 splx(s); 1577 return (-1); 1578 } 1579 tl->xfer = xfer; 1580 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1581 splx(s); 1582 if (firewire_debug > 1) 1583 printf("fw_get_tlabel: dst=%d tl=%d\n", 1584 xfer->dst, label); 1585 return(label); 1586 } 1587 } 1588 splx(s); 1589 1590 printf("fw_get_tlabel: no free tlabel\n"); 1591 return(-1); 1592 } 1593 1594 static void 1595 fw_rcv_copy(struct fw_xfer *xfer, struct iovec *vec, int nvec) 1596 { 1597 char *p; 1598 int res, i, len; 1599 1600 p = xfer->recv.buf; 1601 res = xfer->recv.len; 1602 for (i = 0; i < nvec; i++, vec++) { 1603 len = vec->iov_len; 1604 if (res < len) { 1605 printf("rcv buffer(%d) is %d bytes short.\n", 1606 xfer->recv.len, len - res); 1607 len = res; 1608 } 1609 bcopy(vec->iov_base, p, len); 1610 p += len; 1611 res -= len; 1612 if (res <= 0) 1613 break; 1614 } 1615 xfer->recv.len -= res; 1616 } 1617 1618 /* 1619 * Generic packet receving process. 1620 */ 1621 void 1622 fw_rcv(struct firewire_comm *fc, struct iovec *vec, int nvec, u_int sub, u_int spd) 1623 { 1624 struct fw_pkt *fp, *resfp; 1625 struct fw_xfer *xfer; 1626 struct fw_bind *bind; 1627 struct firewire_softc *sc; 1628 int tcode, s; 1629 int i, len, oldstate; 1630 #if 0 1631 { 1632 u_int32_t *qld; 1633 int i; 1634 qld = (u_int32_t *)buf; 1635 printf("spd %d len:%d\n", spd, len); 1636 for( i = 0 ; i <= len && i < 32; i+= 4){ 1637 printf("0x%08x ", ntohl(qld[i/4])); 1638 if((i % 16) == 15) printf("\n"); 1639 } 1640 if((i % 16) != 15) printf("\n"); 1641 } 1642 #endif 1643 fp = (struct fw_pkt *)vec[0].iov_base; 1644 tcode = fp->mode.common.tcode; 1645 #if 0 /* XXX this check is not valid for RRESQ and WREQQ */ 1646 if (vec[0].iov_len < fc->tcode[tcode].hdr_len) { 1647 #if __FreeBSD_version >= 500000 1648 printf("fw_rcv: iov_len(%zu) is less than" 1649 #else 1650 printf("fw_rcv: iov_len(%u) is less than" 1651 #endif 1652 " hdr_len(%d:tcode=%d)\n", vec[0].iov_len, 1653 fc->tcode[tcode].hdr_len, tcode); 1654 } 1655 #endif 1656 switch (tcode) { 1657 case FWTCODE_WRES: 1658 case FWTCODE_RRESQ: 1659 case FWTCODE_RRESB: 1660 case FWTCODE_LRES: 1661 xfer = fw_tl2xfer(fc, fp->mode.hdr.src, 1662 fp->mode.hdr.tlrt >> 2); 1663 if(xfer == NULL) { 1664 printf("fw_rcv: unknown response " 1665 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n", 1666 tcode, 1667 fp->mode.hdr.src, 1668 fp->mode.hdr.tlrt >> 2, 1669 fp->mode.hdr.tlrt & 3, 1670 fp->mode.rresq.data); 1671 #if 1 1672 printf("try ad-hoc work around!!\n"); 1673 xfer = fw_tl2xfer(fc, fp->mode.hdr.src, 1674 (fp->mode.hdr.tlrt >> 2)^3); 1675 if (xfer == NULL) { 1676 printf("no use...\n"); 1677 goto err; 1678 } 1679 #else 1680 goto err; 1681 #endif 1682 } 1683 fw_rcv_copy(xfer, vec, nvec); 1684 xfer->resp = 0; 1685 /* make sure the packet is drained in AT queue */ 1686 oldstate = xfer->state; 1687 xfer->state = FWXF_RCVD; 1688 switch (oldstate) { 1689 case FWXF_SENT: 1690 fw_xfer_done(xfer); 1691 break; 1692 case FWXF_START: 1693 if (firewire_debug) 1694 printf("not sent yet\n"); 1695 break; 1696 default: 1697 printf("unexpected state %d\n", xfer->state); 1698 } 1699 return; 1700 case FWTCODE_WREQQ: 1701 case FWTCODE_WREQB: 1702 case FWTCODE_RREQQ: 1703 case FWTCODE_RREQB: 1704 case FWTCODE_LREQ: 1705 bind = fw_bindlookup(fc, fp->mode.rreqq.dest_hi, 1706 fp->mode.rreqq.dest_lo); 1707 if(bind == NULL){ 1708 #if __FreeBSD_version >= 500000 1709 printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%x\n", 1710 #else 1711 printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%lx\n", 1712 #endif 1713 fp->mode.wreqq.dest_hi, 1714 fp->mode.wreqq.dest_lo, 1715 tcode, 1716 fp->mode.hdr.src, 1717 ntohl(fp->mode.wreqq.data)); 1718 if (fc->status == FWBUSRESET) { 1719 printf("fw_rcv: cannot respond(bus reset)!\n"); 1720 goto err; 1721 } 1722 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 0); 1723 if(xfer == NULL){ 1724 return; 1725 } 1726 xfer->spd = spd; 1727 resfp = (struct fw_pkt *)xfer->send.buf; 1728 switch (tcode) { 1729 case FWTCODE_WREQQ: 1730 case FWTCODE_WREQB: 1731 resfp->mode.hdr.tcode = FWTCODE_WRES; 1732 xfer->send.len = 12; 1733 break; 1734 case FWTCODE_RREQQ: 1735 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1736 xfer->send.len = 16; 1737 break; 1738 case FWTCODE_RREQB: 1739 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1740 xfer->send.len = 16; 1741 break; 1742 case FWTCODE_LREQ: 1743 resfp->mode.hdr.tcode = FWTCODE_LRES; 1744 xfer->send.len = 16; 1745 break; 1746 } 1747 resfp->mode.hdr.dst = fp->mode.hdr.src; 1748 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1749 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1750 resfp->mode.rresb.rtcode = 7; 1751 resfp->mode.rresb.extcode = 0; 1752 resfp->mode.rresb.len = 0; 1753 /* 1754 xfer->act.hand = fw_asy_callback; 1755 */ 1756 xfer->act.hand = fw_xfer_free; 1757 if(fw_asyreq(fc, -1, xfer)){ 1758 fw_xfer_free( xfer); 1759 return; 1760 } 1761 goto err; 1762 } 1763 len = 0; 1764 for (i = 0; i < nvec; i ++) 1765 len += vec[i].iov_len; 1766 switch(bind->act_type){ 1767 case FWACT_XFER: 1768 /* splfw()?? */ 1769 xfer = STAILQ_FIRST(&bind->xferlist); 1770 if (xfer == NULL) { 1771 printf("Discard a packet for this bind.\n"); 1772 goto err; 1773 } 1774 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1775 fw_rcv_copy(xfer, vec, nvec); 1776 xfer->spd = spd; 1777 if (fc->status != FWBUSRESET) 1778 xfer->act.hand(xfer); 1779 else 1780 STAILQ_INSERT_TAIL(&fc->pending, xfer, link); 1781 return; 1782 break; 1783 case FWACT_CH: 1784 if(fc->ir[bind->sub]->queued >= 1785 fc->ir[bind->sub]->maxq){ 1786 device_printf(fc->bdev, 1787 "Discard a packet %x %d\n", 1788 bind->sub, 1789 fc->ir[bind->sub]->queued); 1790 goto err; 1791 } 1792 xfer = STAILQ_FIRST(&bind->xferlist); 1793 if (xfer == NULL) { 1794 printf("Discard packet for this bind\n"); 1795 goto err; 1796 } 1797 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1798 fw_rcv_copy(xfer, vec, nvec); 1799 xfer->spd = spd; 1800 s = splfw(); 1801 fc->ir[bind->sub]->queued++; 1802 STAILQ_INSERT_TAIL(&fc->ir[bind->sub]->q, xfer, link); 1803 splx(s); 1804 1805 wakeup((caddr_t)fc->ir[bind->sub]); 1806 1807 return; 1808 break; 1809 default: 1810 goto err; 1811 break; 1812 } 1813 break; 1814 case FWTCODE_STREAM: 1815 { 1816 struct fw_xferq *xferq; 1817 1818 xferq = fc->ir[sub]; 1819 #if 0 1820 printf("stream rcv dma %d len %d off %d spd %d\n", 1821 sub, len, off, spd); 1822 #endif 1823 if(xferq->queued >= xferq->maxq) { 1824 printf("receive queue is full\n"); 1825 goto err; 1826 } 1827 /* XXX get xfer from xfer queue, we don't need copy for 1828 per packet mode */ 1829 xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1830 vec[0].iov_len); 1831 if(xfer == NULL) goto err; 1832 fw_rcv_copy(xfer, vec, nvec); 1833 xfer->spd = spd; 1834 s = splfw(); 1835 xferq->queued++; 1836 STAILQ_INSERT_TAIL(&xferq->q, xfer, link); 1837 splx(s); 1838 sc = device_get_softc(fc->bdev); 1839 #if __FreeBSD_version >= 500000 1840 if (SEL_WAITING(&xferq->rsel)) 1841 #else 1842 if (&xferq->rsel.si_pid != 0) 1843 #endif 1844 selwakeup(&xferq->rsel); 1845 if (xferq->flag & FWXFERQ_WAKEUP) { 1846 xferq->flag &= ~FWXFERQ_WAKEUP; 1847 wakeup((caddr_t)xferq); 1848 } 1849 if (xferq->flag & FWXFERQ_HANDLER) { 1850 xferq->hand(xferq); 1851 } 1852 return; 1853 break; 1854 } 1855 default: 1856 printf("fw_rcv: unknow tcode %d\n", tcode); 1857 break; 1858 } 1859 err: 1860 return; 1861 } 1862 1863 /* 1864 * Post process for Bus Manager election process. 1865 */ 1866 static void 1867 fw_try_bmr_callback(struct fw_xfer *xfer) 1868 { 1869 struct fw_pkt *rfp; 1870 struct firewire_comm *fc; 1871 int bmr; 1872 1873 if (xfer == NULL) 1874 return; 1875 fc = xfer->fc; 1876 if (xfer->resp != 0) 1877 goto error; 1878 if (xfer->send.buf == NULL) 1879 goto error; 1880 if (xfer->recv.buf == NULL) 1881 goto error; 1882 rfp = (struct fw_pkt *)xfer->recv.buf; 1883 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE) 1884 goto error; 1885 1886 bmr = ntohl(rfp->mode.lres.payload[0]); 1887 if (bmr == 0x3f) 1888 bmr = fc->nodeid; 1889 1890 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 1891 device_printf(fc->bdev, "new bus manager %d ", 1892 CSRARC(fc, BUS_MGR_ID)); 1893 if(bmr == fc->nodeid){ 1894 printf("(me)\n"); 1895 fw_bmr(fc); 1896 }else{ 1897 printf("\n"); 1898 } 1899 error: 1900 fw_xfer_free(xfer); 1901 } 1902 1903 1904 /* 1905 * To candidate Bus Manager election process. 1906 */ 1907 static void 1908 fw_try_bmr(void *arg) 1909 { 1910 struct fw_xfer *xfer; 1911 struct firewire_comm *fc = (struct firewire_comm *)arg; 1912 struct fw_pkt *fp; 1913 int err = 0; 1914 1915 xfer = fw_xfer_alloc_buf(M_FWXFER, 24, 20); 1916 if(xfer == NULL){ 1917 return; 1918 } 1919 xfer->spd = 0; 1920 fc->status = FWBUSMGRELECT; 1921 1922 fp = (struct fw_pkt *)xfer->send.buf; 1923 fp->mode.lreq.dest_hi = 0xffff; 1924 fp->mode.lreq.tlrt = 0; 1925 fp->mode.lreq.tcode = FWTCODE_LREQ; 1926 fp->mode.lreq.pri = 0; 1927 fp->mode.lreq.src = 0; 1928 fp->mode.lreq.len = 8; 1929 fp->mode.lreq.extcode = FW_LREQ_CMPSWAP; 1930 xfer->dst = FWLOCALBUS | fc->irm; 1931 fp->mode.lreq.dst = xfer->dst; 1932 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 1933 fp->mode.lreq.payload[0] = htonl(0x3f); 1934 fp->mode.lreq.payload[1] = htonl(fc->nodeid); 1935 xfer->act.hand = fw_try_bmr_callback; 1936 1937 err = fw_asyreq(fc, -1, xfer); 1938 if(err){ 1939 fw_xfer_free( xfer); 1940 return; 1941 } 1942 return; 1943 } 1944 1945 #ifdef FW_VMACCESS 1946 /* 1947 * Software implementation for physical memory block access. 1948 * XXX:Too slow, usef for debug purpose only. 1949 */ 1950 static void 1951 fw_vmaccess(struct fw_xfer *xfer){ 1952 struct fw_pkt *rfp, *sfp = NULL; 1953 u_int32_t *ld = (u_int32_t *)xfer->recv.buf; 1954 1955 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 1956 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1957 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1958 if(xfer->resp != 0){ 1959 fw_xfer_free( xfer); 1960 return; 1961 } 1962 if(xfer->recv.buf == NULL){ 1963 fw_xfer_free( xfer); 1964 return; 1965 } 1966 rfp = (struct fw_pkt *)xfer->recv.buf; 1967 switch(rfp->mode.hdr.tcode){ 1968 /* XXX need fix for 64bit arch */ 1969 case FWTCODE_WREQB: 1970 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 1971 xfer->send.len = 12; 1972 sfp = (struct fw_pkt *)xfer->send.buf; 1973 bcopy(rfp->mode.wreqb.payload, 1974 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 1975 sfp->mode.wres.tcode = FWTCODE_WRES; 1976 sfp->mode.wres.rtcode = 0; 1977 break; 1978 case FWTCODE_WREQQ: 1979 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 1980 xfer->send.len = 12; 1981 sfp->mode.wres.tcode = FWTCODE_WRES; 1982 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 1983 sfp->mode.wres.rtcode = 0; 1984 break; 1985 case FWTCODE_RREQB: 1986 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 1987 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 1988 sfp = (struct fw_pkt *)xfer->send.buf; 1989 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 1990 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 1991 sfp->mode.rresb.tcode = FWTCODE_RRESB; 1992 sfp->mode.rresb.len = rfp->mode.rreqb.len; 1993 sfp->mode.rresb.rtcode = 0; 1994 sfp->mode.rresb.extcode = 0; 1995 break; 1996 case FWTCODE_RREQQ: 1997 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1998 xfer->send.len = 16; 1999 sfp = (struct fw_pkt *)xfer->send.buf; 2000 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2001 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2002 sfp->mode.rresb.rtcode = 0; 2003 break; 2004 default: 2005 fw_xfer_free( xfer); 2006 return; 2007 } 2008 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2009 xfer->dst = ntohs(rfp->mode.hdr.src); 2010 xfer->act.hand = fw_xfer_free; 2011 xfer->retry_req = fw_asybusy; 2012 2013 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2014 sfp->mode.hdr.pri = 0; 2015 2016 fw_asyreq(xfer->fc, -1, xfer); 2017 /**/ 2018 return; 2019 } 2020 #endif 2021 2022 /* 2023 * CRC16 check-sum for IEEE1394 register blocks. 2024 */ 2025 u_int16_t 2026 fw_crc16(u_int32_t *ptr, u_int32_t len){ 2027 u_int32_t i, sum, crc = 0; 2028 int shift; 2029 len = (len + 3) & ~3; 2030 for(i = 0 ; i < len ; i+= 4){ 2031 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2032 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2033 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2034 } 2035 crc &= 0xffff; 2036 } 2037 return((u_int16_t) crc); 2038 } 2039 2040 static int 2041 fw_bmr(struct firewire_comm *fc) 2042 { 2043 struct fw_device fwdev; 2044 union fw_self_id *self_id; 2045 int cmstr; 2046 2047 /* Check to see if the current root node is cycle master capable */ 2048 self_id = &fc->topology_map->self_id[fc->max_node]; 2049 if (fc->max_node > 0) { 2050 if (self_id->p0.contender) 2051 cmstr = fc->max_node; 2052 else 2053 /* XXX shall we be cycle master? */ 2054 cmstr = fc->nodeid; 2055 /* XXX bus reset? */ 2056 } else 2057 cmstr = -1; 2058 /* If I am the bus manager, optimize gapcount */ 2059 if(fc->max_hop <= MAX_GAPHOP ) 2060 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2061 /* If we are the cycle master, nothing to do */ 2062 if (cmstr == fc->nodeid || cmstr == -1) 2063 return 0; 2064 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2065 bzero(&fwdev, sizeof(fwdev)); 2066 fwdev.fc = fc; 2067 fwdev.dst = cmstr; 2068 fwdev.speed = 0; 2069 fwdev.maxrec = 8; /* 512 */ 2070 fwdev.status = FWDEVINIT; 2071 /* Set cmstr bit on the cycle master */ 2072 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2073 0xffff, 0xf0000000 | STATE_SET, htonl(1 << 16), 2074 fw_asy_callback_free); 2075 2076 return 0; 2077 } 2078 2079 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); 2080 MODULE_VERSION(firewire, 1); 2081