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: src/sys/dev/firewire/firewire.c,v 1.3.2.22 2003/05/12 04:16:30 simokawa Exp $ 35 * $DragonFly: src/sys/bus/firewire/firewire.c,v 1.2 2003/06/17 04:28:25 dillon Exp $ 36 * 37 */ 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/types.h> 42 #include <sys/mbuf.h> 43 #include <sys/socket.h> 44 #include <sys/socketvar.h> 45 46 #include <sys/kernel.h> 47 #include <sys/malloc.h> 48 #include <sys/conf.h> 49 #include <sys/sysctl.h> 50 51 #include <machine/cpufunc.h> /* for rdtsc proto for clock.h below */ 52 #include <machine/clock.h> 53 54 #include <sys/bus.h> /* used by smbus and newbus */ 55 #include <machine/bus.h> 56 57 #include <dev/firewire/firewire.h> 58 #include <dev/firewire/firewirereg.h> 59 #include <dev/firewire/fwmem.h> 60 #include <dev/firewire/iec13213.h> 61 #include <dev/firewire/iec68113.h> 62 63 int firewire_debug=0, try_bmr=1; 64 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 65 "FireWire driver debug flag"); 66 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 67 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 68 "Try to be a bus manager"); 69 70 MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 71 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 72 73 #define FW_MAXASYRTY 4 74 #define FW_MAXDEVRCNT 4 75 76 devclass_t firewire_devclass; 77 78 static int firewire_match __P((device_t)); 79 static int firewire_attach __P((device_t)); 80 static int firewire_detach __P((device_t)); 81 #if 0 82 static int firewire_shutdown __P((device_t)); 83 #endif 84 static device_t firewire_add_child __P((device_t, int, const char *, int)); 85 static void fw_try_bmr __P((void *)); 86 static void fw_try_bmr_callback __P((struct fw_xfer *)); 87 static void fw_asystart __P((struct fw_xfer *)); 88 static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *)); 89 static void fw_bus_probe __P((struct firewire_comm *)); 90 static void fw_bus_explore __P((struct firewire_comm *)); 91 static void fw_bus_explore_callback __P((struct fw_xfer *)); 92 static void fw_attach_dev __P((struct firewire_comm *)); 93 #ifdef FW_VMACCESS 94 static void fw_vmaccess __P((struct fw_xfer *)); 95 #endif 96 struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 97 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *)))); 98 static int fw_bmr __P((struct firewire_comm *)); 99 100 static device_method_t firewire_methods[] = { 101 /* Device interface */ 102 DEVMETHOD(device_probe, firewire_match), 103 DEVMETHOD(device_attach, firewire_attach), 104 DEVMETHOD(device_detach, firewire_detach), 105 DEVMETHOD(device_suspend, bus_generic_suspend), 106 DEVMETHOD(device_resume, bus_generic_resume), 107 DEVMETHOD(device_shutdown, bus_generic_shutdown), 108 109 /* Bus interface */ 110 DEVMETHOD(bus_add_child, firewire_add_child), 111 DEVMETHOD(bus_print_child, bus_generic_print_child), 112 113 { 0, 0 } 114 }; 115 char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"}; 116 117 /* IEEE-1394a Table C-2 Gap count as a function of hops*/ 118 #define MAX_GAPHOP 15 119 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 120 21, 24, 26, 29, 32, 35, 37, 40}; 121 122 extern struct cdevsw firewire_cdevsw; 123 124 static driver_t firewire_driver = { 125 "firewire", 126 firewire_methods, 127 sizeof(struct firewire_softc), 128 }; 129 130 /* 131 * Lookup fwdev by node id. 132 */ 133 struct fw_device * 134 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 135 { 136 struct fw_device *fwdev; 137 int s; 138 139 s = splfw(); 140 STAILQ_FOREACH(fwdev, &fc->devices, link) 141 if (fwdev->dst == dst) 142 break; 143 splx(s); 144 145 if(fwdev == NULL) return NULL; 146 if(fwdev->status == FWDEVINVAL) return NULL; 147 return fwdev; 148 } 149 150 /* 151 * Lookup fwdev by EUI64. 152 */ 153 struct fw_device * 154 fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 155 { 156 struct fw_device *fwdev; 157 int s; 158 159 s = splfw(); 160 STAILQ_FOREACH(fwdev, &fc->devices, link) 161 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 162 break; 163 splx(s); 164 165 if(fwdev == NULL) return NULL; 166 if(fwdev->status == FWDEVINVAL) return NULL; 167 return fwdev; 168 } 169 170 /* 171 * Async. request procedure for userland application. 172 */ 173 int 174 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 175 { 176 int err = 0; 177 struct fw_xferq *xferq; 178 int tl = 0, len; 179 struct fw_pkt *fp; 180 int tcode; 181 struct tcode_info *info; 182 183 if(xfer == NULL) return EINVAL; 184 if(xfer->send.len > MAXREC(fc->maxrec)){ 185 printf("send.len > maxrec\n"); 186 return EINVAL; 187 } 188 if(xfer->act.hand == NULL){ 189 printf("act.hand == NULL\n"); 190 return EINVAL; 191 } 192 fp = (struct fw_pkt *)xfer->send.buf; 193 194 tcode = fp->mode.common.tcode & 0xf; 195 info = &fc->tcode[tcode]; 196 if (info->flag == 0) { 197 printf("invalid tcode=%d\n", tcode); 198 return EINVAL; 199 } 200 if (info->flag & FWTI_REQ) 201 xferq = fc->atq; 202 else 203 xferq = fc->ats; 204 len = info->hdr_len; 205 if (info->flag & FWTI_BLOCK_STR) 206 len += fp->mode.stream.len; 207 else if (info->flag & FWTI_BLOCK_ASY) 208 len += fp->mode.rresb.len; 209 if( len > xfer->send.len ){ 210 printf("len(%d) > send.len(%d) (tcode=%d)\n", 211 len, xfer->send.len, tcode); 212 return EINVAL; 213 } 214 xfer->send.len = len; 215 216 if(xferq->start == NULL){ 217 printf("xferq->start == NULL\n"); 218 return EINVAL; 219 } 220 if(!(xferq->queued < xferq->maxq)){ 221 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 222 xferq->queued); 223 return EINVAL; 224 } 225 226 227 if (info->flag & FWTI_TLABEL) { 228 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 229 return EIO; 230 fp->mode.hdr.tlrt = tl << 2; 231 } 232 233 xfer->tl = tl; 234 xfer->resp = 0; 235 xfer->fc = fc; 236 xfer->q = xferq; 237 xfer->retry_req = fw_asybusy; 238 239 fw_asystart(xfer); 240 return err; 241 } 242 /* 243 * Wakeup blocked process. 244 */ 245 void 246 fw_asy_callback(struct fw_xfer *xfer){ 247 wakeup(xfer); 248 return; 249 } 250 /* 251 * Postpone to later retry. 252 */ 253 void fw_asybusy(struct fw_xfer *xfer){ 254 printf("fw_asybusy\n"); 255 /* 256 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 257 */ 258 DELAY(20000); 259 fw_asystart(xfer); 260 return; 261 } 262 263 /* 264 * Async. request with given xfer structure. 265 */ 266 static void 267 fw_asystart(struct fw_xfer *xfer) 268 { 269 struct firewire_comm *fc = xfer->fc; 270 int s; 271 if(xfer->retry++ >= fc->max_asyretry){ 272 device_printf(fc->bdev, "max_asyretry exceeded\n"); 273 xfer->resp = EBUSY; 274 xfer->state = FWXF_BUSY; 275 xfer->act.hand(xfer); 276 return; 277 } 278 #if 0 /* XXX allow bus explore packets only after bus rest */ 279 if (fc->status < FWBUSEXPLORE) { 280 xfer->resp = EAGAIN; 281 xfer->state = FWXF_BUSY; 282 if (xfer->act.hand != NULL) 283 xfer->act.hand(xfer); 284 return; 285 } 286 #endif 287 s = splfw(); 288 xfer->state = FWXF_INQ; 289 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 290 xfer->q->queued ++; 291 splx(s); 292 /* XXX just queue for mbuf */ 293 if (xfer->mbuf == NULL) 294 xfer->q->start(fc); 295 return; 296 } 297 298 static int 299 firewire_match( device_t dev ) 300 { 301 device_set_desc(dev, "IEEE1394(FireWire) bus"); 302 return -140; 303 } 304 305 static void 306 firewire_xfer_timeout(struct firewire_comm *fc) 307 { 308 struct fw_xfer *xfer; 309 struct tlabel *tl; 310 struct timeval tv; 311 struct timeval split_timeout; 312 int i, s; 313 314 split_timeout.tv_sec = 6; 315 split_timeout.tv_usec = 0; 316 317 microtime(&tv); 318 timevalsub(&tv, &split_timeout); 319 320 s = splfw(); 321 for (i = 0; i < 0x40; i ++) { 322 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 323 xfer = tl->xfer; 324 if (timevalcmp(&xfer->tv, &tv, >)) 325 /* the rests are newer than this */ 326 break; 327 device_printf(fc->bdev, 328 "split transaction timeout dst=0x%x tl=0x%x\n", 329 xfer->dst, i); 330 xfer->resp = ETIMEDOUT; 331 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 332 fw_xfer_done(xfer); 333 } 334 } 335 splx(s); 336 } 337 338 static void 339 firewire_watchdog(void *arg) 340 { 341 struct firewire_comm *fc; 342 343 fc = (struct firewire_comm *)arg; 344 firewire_xfer_timeout(fc); 345 fc->timeout(fc); 346 callout_reset(&fc->timeout_callout, hz, 347 (void *)firewire_watchdog, (void *)fc); 348 } 349 350 /* 351 * The attach routine. 352 */ 353 static int 354 firewire_attach( device_t dev ) 355 { 356 int i, unitmask, mn; 357 struct firewire_softc *sc = device_get_softc(dev); 358 device_t pa = device_get_parent(dev); 359 struct firewire_comm *fc; 360 dev_t d; 361 362 fc = (struct firewire_comm *)device_get_softc(pa); 363 sc->fc = fc; 364 fc->status = -1; 365 366 unitmask = UNIT2MIN(device_get_unit(dev)); 367 368 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 369 for ( i = 0 ; i < fc->nisodma ; i++ ){ 370 mn = unitmask | i; 371 /* XXX device name should be improved */ 372 d = make_dev(&firewire_cdevsw, unit2minor(mn), 373 UID_ROOT, GID_OPERATOR, 0660, 374 "fw%x", mn); 375 #if __FreeBSD_version >= 500000 376 if (i == 0) 377 sc->dev = d; 378 else 379 dev_depends(sc->dev, d); 380 #else 381 sc->dev[i] = d; 382 #endif 383 } 384 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG), 385 UID_ROOT, GID_OPERATOR, 0660, 386 "fwmem%d", device_get_unit(dev)); 387 #if __FreeBSD_version >= 500000 388 dev_depends(sc->dev, d); 389 #else 390 sc->dev[i] = d; 391 #endif 392 CALLOUT_INIT(&sc->fc->timeout_callout); 393 CALLOUT_INIT(&sc->fc->bmr_callout); 394 CALLOUT_INIT(&sc->fc->retry_probe_callout); 395 CALLOUT_INIT(&sc->fc->busprobe_callout); 396 397 callout_reset(&sc->fc->timeout_callout, hz, 398 (void *)firewire_watchdog, (void *)sc->fc); 399 400 /* Locate our children */ 401 bus_generic_probe(dev); 402 403 /* launch attachement of the added children */ 404 bus_generic_attach(dev); 405 406 /* bus_reset */ 407 fc->ibr(fc); 408 409 return 0; 410 } 411 412 /* 413 * Attach it as child. 414 */ 415 static device_t 416 firewire_add_child(device_t dev, int order, const char *name, int unit) 417 { 418 device_t child; 419 struct firewire_softc *sc; 420 421 sc = (struct firewire_softc *)device_get_softc(dev); 422 child = device_add_child(dev, name, unit); 423 if (child) { 424 device_set_ivars(child, sc->fc); 425 device_probe_and_attach(child); 426 } 427 428 return child; 429 } 430 431 /* 432 * Dettach it. 433 */ 434 static int 435 firewire_detach( device_t dev ) 436 { 437 struct firewire_softc *sc; 438 struct csrdir *csrd, *next; 439 struct fw_device *fwdev, *fwdev_next; 440 441 sc = (struct firewire_softc *)device_get_softc(dev); 442 443 bus_generic_detach(dev); 444 445 callout_stop(&sc->fc->timeout_callout); 446 callout_stop(&sc->fc->bmr_callout); 447 callout_stop(&sc->fc->retry_probe_callout); 448 callout_stop(&sc->fc->busprobe_callout); 449 450 #if __FreeBSD_version >= 500000 451 destroy_dev(sc->dev); 452 #else 453 { 454 int j; 455 for (j = 0 ; j < sc->fc->nisodma + 1; j++) 456 destroy_dev(sc->dev[j]); 457 } 458 #endif 459 /* XXX xfree_free and untimeout on all xfers */ 460 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 461 fwdev = fwdev_next) { 462 fwdev_next = STAILQ_NEXT(fwdev, link); 463 free(fwdev, M_FW); 464 } 465 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 466 next = SLIST_NEXT(csrd, link); 467 free(csrd, M_FW); 468 } 469 free(sc->fc->topology_map, M_FW); 470 free(sc->fc->speed_map, M_FW); 471 return(0); 472 } 473 #if 0 474 static int 475 firewire_shutdown( device_t dev ) 476 { 477 return 0; 478 } 479 #endif 480 481 482 static void 483 fw_xferq_drain(struct fw_xferq *xferq) 484 { 485 struct fw_xfer *xfer; 486 487 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 488 STAILQ_REMOVE_HEAD(&xferq->q, link); 489 xferq->queued --; 490 xfer->resp = EAGAIN; 491 fw_xfer_done(xfer); 492 } 493 } 494 495 void 496 fw_drain_txq(struct firewire_comm *fc) 497 { 498 int i; 499 500 fw_xferq_drain(fc->atq); 501 fw_xferq_drain(fc->ats); 502 for(i = 0; i < fc->nisodma; i++) 503 fw_xferq_drain(fc->it[i]); 504 } 505 506 /* 507 * Called after bus reset. 508 */ 509 void 510 fw_busreset(struct firewire_comm *fc) 511 { 512 struct firewire_dev_comm *fdc; 513 device_t *devlistp; 514 int devcnt; 515 int i; 516 517 switch(fc->status){ 518 case FWBUSMGRELECT: 519 callout_stop(&fc->bmr_callout); 520 break; 521 default: 522 break; 523 } 524 fc->status = FWBUSRESET; 525 CSRARC(fc, STATE_CLEAR) 526 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 527 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 528 CSRARC(fc, NODE_IDS) = 0x3f; 529 530 CSRARC(fc, TOPO_MAP + 8) = 0; 531 fc->irm = -1; 532 533 fc->max_node = -1; 534 535 for(i = 2; i < 0x100/4 - 2 ; i++){ 536 CSRARC(fc, SPED_MAP + i * 4) = 0; 537 } 538 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 539 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 540 CSRARC(fc, RESET_START) = 0; 541 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 542 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 543 CSRARC(fc, CYCLE_TIME) = 0x0; 544 CSRARC(fc, BUS_TIME) = 0x0; 545 CSRARC(fc, BUS_MGR_ID) = 0x3f; 546 CSRARC(fc, BANDWIDTH_AV) = 4915; 547 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 548 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 549 CSRARC(fc, IP_CHANNELS) = (1 << 31); 550 551 CSRARC(fc, CONF_ROM) = 0x04 << 24; 552 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 553 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 554 1 << 28 | 0xff << 16 | 0x09 << 8; 555 CSRARC(fc, CONF_ROM + 0xc) = 0; 556 557 /* DV depend CSRs see blue book */ 558 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 559 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 560 561 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 562 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 563 564 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 565 for( i = 0 ; i < devcnt ; i++) 566 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 567 fdc = device_get_softc(devlistp[i]); 568 if (fdc->post_busreset != NULL) 569 fdc->post_busreset(fdc); 570 } 571 free(devlistp, M_TEMP); 572 } 573 } 574 575 /* Call once after reboot */ 576 void fw_init(struct firewire_comm *fc) 577 { 578 int i; 579 struct csrdir *csrd; 580 #ifdef FW_VMACCESS 581 struct fw_xfer *xfer; 582 struct fw_bind *fwb; 583 #endif 584 585 fc->max_asyretry = FW_MAXASYRTY; 586 587 fc->arq->queued = 0; 588 fc->ars->queued = 0; 589 fc->atq->queued = 0; 590 fc->ats->queued = 0; 591 592 fc->arq->buf = NULL; 593 fc->ars->buf = NULL; 594 fc->atq->buf = NULL; 595 fc->ats->buf = NULL; 596 597 fc->arq->flag = 0; 598 fc->ars->flag = 0; 599 fc->atq->flag = 0; 600 fc->ats->flag = 0; 601 602 STAILQ_INIT(&fc->atq->q); 603 STAILQ_INIT(&fc->ats->q); 604 605 for( i = 0 ; i < fc->nisodma ; i ++ ){ 606 fc->it[i]->queued = 0; 607 fc->ir[i]->queued = 0; 608 609 fc->it[i]->start = NULL; 610 fc->ir[i]->start = NULL; 611 612 fc->it[i]->buf = NULL; 613 fc->ir[i]->buf = NULL; 614 615 fc->it[i]->flag = FWXFERQ_STREAM; 616 fc->ir[i]->flag = FWXFERQ_STREAM; 617 618 STAILQ_INIT(&fc->it[i]->q); 619 STAILQ_INIT(&fc->ir[i]->q); 620 621 STAILQ_INIT(&fc->it[i]->binds); 622 STAILQ_INIT(&fc->ir[i]->binds); 623 } 624 625 fc->arq->maxq = FWMAXQUEUE; 626 fc->ars->maxq = FWMAXQUEUE; 627 fc->atq->maxq = FWMAXQUEUE; 628 fc->ats->maxq = FWMAXQUEUE; 629 630 for( i = 0 ; i < fc->nisodma ; i++){ 631 fc->ir[i]->maxq = FWMAXQUEUE; 632 fc->it[i]->maxq = FWMAXQUEUE; 633 } 634 /* Initialize csr registers */ 635 fc->topology_map = (struct fw_topology_map *)malloc( 636 sizeof(struct fw_topology_map), 637 M_FW, M_NOWAIT | M_ZERO); 638 fc->speed_map = (struct fw_speed_map *)malloc( 639 sizeof(struct fw_speed_map), 640 M_FW, M_NOWAIT | M_ZERO); 641 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 642 CSRARC(fc, TOPO_MAP + 4) = 1; 643 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 644 CSRARC(fc, SPED_MAP + 4) = 1; 645 646 STAILQ_INIT(&fc->devices); 647 STAILQ_INIT(&fc->pending); 648 649 /* Initialize csr ROM work space */ 650 SLIST_INIT(&fc->ongocsr); 651 SLIST_INIT(&fc->csrfree); 652 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 653 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 654 if(csrd == NULL) break; 655 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 656 } 657 658 /* Initialize Async handlers */ 659 STAILQ_INIT(&fc->binds); 660 for( i = 0 ; i < 0x40 ; i++){ 661 STAILQ_INIT(&fc->tlabels[i]); 662 } 663 664 /* DV depend CSRs see blue book */ 665 #if 0 666 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 667 CSRARC(fc, oPCR) = 0x8000007a; 668 for(i = 4 ; i < 0x7c/4 ; i+=4){ 669 CSRARC(fc, i + oPCR) = 0x8000007a; 670 } 671 672 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 673 CSRARC(fc, iPCR) = 0x803f0000; 674 for(i = 4 ; i < 0x7c/4 ; i+=4){ 675 CSRARC(fc, i + iPCR) = 0x0; 676 } 677 #endif 678 679 680 #ifdef FW_VMACCESS 681 xfer = fw_xfer_alloc(); 682 if(xfer == NULL) return; 683 684 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 685 if(fwb == NULL){ 686 fw_xfer_free(xfer); 687 } 688 xfer->act.hand = fw_vmaccess; 689 xfer->fc = fc; 690 xfer->sc = NULL; 691 692 fwb->start_hi = 0x2; 693 fwb->start_lo = 0; 694 fwb->addrlen = 0xffffffff; 695 fwb->xfer = xfer; 696 fw_bindadd(fc, fwb); 697 #endif 698 } 699 700 /* 701 * To lookup binded process from IEEE1394 address. 702 */ 703 struct fw_bind * 704 fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 705 { 706 struct fw_bind *tfw; 707 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 708 tfw = STAILQ_NEXT(tfw, fclist)){ 709 if (tfw->act_type != FWACT_NULL && 710 tfw->start_hi == dest_hi && 711 tfw->start_lo <= dest_lo && 712 (tfw->start_lo + tfw->addrlen) > dest_lo){ 713 return(tfw); 714 } 715 } 716 return(NULL); 717 } 718 719 /* 720 * To bind IEEE1394 address block to process. 721 */ 722 int 723 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 724 { 725 struct fw_bind *tfw, *tfw2 = NULL; 726 int err = 0; 727 tfw = STAILQ_FIRST(&fc->binds); 728 if(tfw == NULL){ 729 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 730 goto out; 731 } 732 if((tfw->start_hi > fwb->start_hi) || 733 (tfw->start_hi == fwb->start_hi && 734 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 735 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 736 goto out; 737 } 738 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 739 if((tfw->start_hi < fwb->start_hi) || 740 (tfw->start_hi == fwb->start_hi && 741 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 742 tfw2 = STAILQ_NEXT(tfw, fclist); 743 if(tfw2 == NULL) 744 break; 745 if((tfw2->start_hi > fwb->start_hi) || 746 (tfw2->start_hi == fwb->start_hi && 747 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 748 break; 749 }else{ 750 err = EBUSY; 751 goto out; 752 } 753 } 754 } 755 if(tfw != NULL){ 756 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 757 }else{ 758 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 759 } 760 out: 761 if (!err && fwb->act_type == FWACT_CH) 762 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 763 return err; 764 } 765 766 /* 767 * To free IEEE1394 address block. 768 */ 769 int 770 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 771 { 772 int s; 773 struct fw_xfer *xfer, *next; 774 775 s = splfw(); 776 /* shall we check the existance? */ 777 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 778 /* shall we do this? */ 779 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 780 next = STAILQ_NEXT(xfer, link); 781 fw_xfer_free(xfer); 782 } 783 STAILQ_INIT(&fwb->xferlist); 784 785 splx(s); 786 return 0; 787 } 788 789 /* 790 * To free transaction label. 791 */ 792 static void 793 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 794 { 795 struct tlabel *tl; 796 int s = splfw(); 797 798 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 799 tl = STAILQ_NEXT(tl, link)){ 800 if(tl->xfer == xfer){ 801 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 802 free(tl, M_FW); 803 splx(s); 804 return; 805 } 806 } 807 splx(s); 808 return; 809 } 810 811 /* 812 * To obtain XFER structure by transaction label. 813 */ 814 static struct fw_xfer * 815 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 816 { 817 struct fw_xfer *xfer; 818 struct tlabel *tl; 819 int s = splfw(); 820 821 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 822 tl = STAILQ_NEXT(tl, link)){ 823 if(tl->xfer->dst == node){ 824 xfer = tl->xfer; 825 splx(s); 826 if (firewire_debug > 2) 827 printf("fw_tl2xfer: found tl=%d\n", tlabel); 828 return(xfer); 829 } 830 } 831 if (firewire_debug > 1) 832 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 833 splx(s); 834 return(NULL); 835 } 836 837 /* 838 * To allocate IEEE1394 XFER structure. 839 */ 840 struct fw_xfer * 841 fw_xfer_alloc(struct malloc_type *type) 842 { 843 struct fw_xfer *xfer; 844 845 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 846 if (xfer == NULL) 847 return xfer; 848 849 microtime(&xfer->tv); 850 xfer->malloc = type; 851 852 return xfer; 853 } 854 855 struct fw_xfer * 856 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 857 { 858 struct fw_xfer *xfer; 859 860 xfer = fw_xfer_alloc(type); 861 xfer->send.len = send_len; 862 xfer->recv.len = recv_len; 863 if (xfer == NULL) 864 return(NULL); 865 if (send_len) { 866 xfer->send.buf = malloc(send_len, type, M_NOWAIT | M_ZERO); 867 if (xfer->send.buf == NULL) { 868 fw_xfer_free(xfer); 869 return(NULL); 870 } 871 } 872 if (recv_len) { 873 xfer->recv.buf = malloc(recv_len, type, M_NOWAIT); 874 if (xfer->recv.buf == NULL) { 875 if (xfer->send.buf != NULL) 876 free(xfer->send.buf, type); 877 fw_xfer_free(xfer); 878 return(NULL); 879 } 880 } 881 return(xfer); 882 } 883 884 /* 885 * IEEE1394 XFER post process. 886 */ 887 void 888 fw_xfer_done(struct fw_xfer *xfer) 889 { 890 if (xfer->act.hand == NULL) 891 return; 892 893 if (xfer->fc->status != FWBUSRESET) 894 xfer->act.hand(xfer); 895 else { 896 printf("fw_xfer_done: pending\n"); 897 if (xfer->fc != NULL) 898 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 899 else 900 panic("fw_xfer_done: why xfer->fc is NULL?"); 901 } 902 } 903 904 void 905 fw_xfer_unload(struct fw_xfer* xfer) 906 { 907 int s; 908 909 if(xfer == NULL ) return; 910 if(xfer->state == FWXF_INQ){ 911 printf("fw_xfer_free FWXF_INQ\n"); 912 s = splfw(); 913 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 914 xfer->q->queued --; 915 splx(s); 916 } 917 if (xfer->fc != NULL) { 918 #if 1 919 if(xfer->state == FWXF_START) 920 /* 921 * This could happen if: 922 * 1. We call fwohci_arcv() before fwohci_txd(). 923 * 2. firewire_watch() is called. 924 */ 925 printf("fw_xfer_free FWXF_START\n"); 926 #endif 927 fw_tl_free(xfer->fc, xfer); 928 } 929 xfer->state = FWXF_INIT; 930 xfer->resp = 0; 931 xfer->retry = 0; 932 } 933 /* 934 * To free IEEE1394 XFER structure. 935 */ 936 void 937 fw_xfer_free( struct fw_xfer* xfer) 938 { 939 if(xfer == NULL ) return; 940 fw_xfer_unload(xfer); 941 if(xfer->send.buf != NULL){ 942 free(xfer->send.buf, xfer->malloc); 943 } 944 if(xfer->recv.buf != NULL){ 945 free(xfer->recv.buf, xfer->malloc); 946 } 947 free(xfer, xfer->malloc); 948 } 949 950 static void 951 fw_asy_callback_free(struct fw_xfer *xfer) 952 { 953 #if 0 954 printf("asyreq done state=%d resp=%d\n", 955 xfer->state, xfer->resp); 956 #endif 957 fw_xfer_free(xfer); 958 } 959 960 /* 961 * To configure PHY. 962 */ 963 static void 964 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 965 { 966 struct fw_xfer *xfer; 967 struct fw_pkt *fp; 968 969 fc->status = FWBUSPHYCONF; 970 971 xfer = fw_xfer_alloc_buf(M_FWXFER, 12, 0); 972 if (xfer == NULL) 973 return; 974 xfer->fc = fc; 975 xfer->retry_req = fw_asybusy; 976 xfer->act.hand = fw_asy_callback_free; 977 978 fp = (struct fw_pkt *)xfer->send.buf; 979 fp->mode.ld[1] = 0; 980 if (root_node >= 0) 981 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 982 if (gap_count >= 0) 983 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 984 fp->mode.ld[2] = ~fp->mode.ld[1]; 985 /* XXX Dangerous, how to pass PHY packet to device driver */ 986 fp->mode.common.tcode |= FWTCODE_PHY; 987 988 if (firewire_debug) 989 printf("send phy_config root_node=%d gap_count=%d\n", 990 root_node, gap_count); 991 fw_asyreq(fc, -1, xfer); 992 } 993 994 #if 0 995 /* 996 * Dump self ID. 997 */ 998 static void 999 fw_print_sid(u_int32_t sid) 1000 { 1001 union fw_self_id *s; 1002 s = (union fw_self_id *) &sid; 1003 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1004 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1005 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1006 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1007 s->p0.power_class, s->p0.port0, s->p0.port1, 1008 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1009 } 1010 #endif 1011 1012 /* 1013 * To receive self ID. 1014 */ 1015 void fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) 1016 { 1017 u_int32_t *p; 1018 union fw_self_id *self_id; 1019 u_int i, j, node, c_port = 0, i_branch = 0; 1020 1021 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1022 fc->status = FWBUSINIT; 1023 fc->max_node = fc->nodeid & 0x3f; 1024 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1025 fc->status = FWBUSCYMELECT; 1026 fc->topology_map->crc_len = 2; 1027 fc->topology_map->generation ++; 1028 fc->topology_map->self_id_count = 0; 1029 fc->topology_map->node_count = 0; 1030 fc->speed_map->generation ++; 1031 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1032 self_id = &fc->topology_map->self_id[0]; 1033 for(i = 0; i < fc->sid_cnt; i ++){ 1034 if (sid[1] != ~sid[0]) { 1035 printf("fw_sidrcv: invalid self-id packet\n"); 1036 sid += 2; 1037 continue; 1038 } 1039 *self_id = *((union fw_self_id *)sid); 1040 fc->topology_map->crc_len++; 1041 if(self_id->p0.sequel == 0){ 1042 fc->topology_map->node_count ++; 1043 c_port = 0; 1044 #if 0 1045 fw_print_sid(sid[0]); 1046 #endif 1047 node = self_id->p0.phy_id; 1048 if(fc->max_node < node){ 1049 fc->max_node = self_id->p0.phy_id; 1050 } 1051 /* XXX I'm not sure this is the right speed_map */ 1052 fc->speed_map->speed[node][node] 1053 = self_id->p0.phy_speed; 1054 for (j = 0; j < node; j ++) { 1055 fc->speed_map->speed[j][node] 1056 = fc->speed_map->speed[node][j] 1057 = min(fc->speed_map->speed[j][j], 1058 self_id->p0.phy_speed); 1059 } 1060 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1061 (self_id->p0.link_active && self_id->p0.contender)) { 1062 fc->irm = self_id->p0.phy_id; 1063 } 1064 if(self_id->p0.port0 >= 0x2){ 1065 c_port++; 1066 } 1067 if(self_id->p0.port1 >= 0x2){ 1068 c_port++; 1069 } 1070 if(self_id->p0.port2 >= 0x2){ 1071 c_port++; 1072 } 1073 } 1074 if(c_port > 2){ 1075 i_branch += (c_port - 2); 1076 } 1077 sid += 2; 1078 self_id++; 1079 fc->topology_map->self_id_count ++; 1080 } 1081 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1082 /* CRC */ 1083 fc->topology_map->crc = fw_crc16( 1084 (u_int32_t *)&fc->topology_map->generation, 1085 fc->topology_map->crc_len * 4); 1086 fc->speed_map->crc = fw_crc16( 1087 (u_int32_t *)&fc->speed_map->generation, 1088 fc->speed_map->crc_len * 4); 1089 /* byteswap and copy to CSR */ 1090 p = (u_int32_t *)fc->topology_map; 1091 for (i = 0; i <= fc->topology_map->crc_len; i++) 1092 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1093 p = (u_int32_t *)fc->speed_map; 1094 CSRARC(fc, SPED_MAP) = htonl(*p++); 1095 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1096 /* don't byte-swap u_int8_t array */ 1097 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1098 1099 fc->max_hop = fc->max_node - i_branch; 1100 printf(", maxhop <= %d", fc->max_hop); 1101 1102 if(fc->irm == -1 ){ 1103 printf(", Not found IRM capable node"); 1104 }else{ 1105 printf(", cable IRM = %d", fc->irm); 1106 if (fc->irm == fc->nodeid) 1107 printf(" (me)"); 1108 } 1109 printf("\n"); 1110 1111 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1112 if (fc->irm == fc->nodeid) { 1113 fc->status = FWBUSMGRDONE; 1114 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1115 fw_bmr(fc); 1116 } else { 1117 fc->status = FWBUSMGRELECT; 1118 callout_reset(&fc->bmr_callout, hz/8, 1119 (void *)fw_try_bmr, (void *)fc); 1120 } 1121 } else 1122 fc->status = FWBUSMGRDONE; 1123 1124 callout_reset(&fc->busprobe_callout, hz/4, 1125 (void *)fw_bus_probe, (void *)fc); 1126 } 1127 1128 /* 1129 * To probe devices on the IEEE1394 bus. 1130 */ 1131 static void 1132 fw_bus_probe(struct firewire_comm *fc) 1133 { 1134 int s; 1135 struct fw_device *fwdev, *next; 1136 1137 s = splfw(); 1138 fc->status = FWBUSEXPLORE; 1139 fc->retry_count = 0; 1140 1141 /* 1142 * Invalidate all devices, just after bus reset. Devices 1143 * to be removed has not been seen longer time. 1144 */ 1145 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1146 next = STAILQ_NEXT(fwdev, link); 1147 if (fwdev->status != FWDEVINVAL) { 1148 fwdev->status = FWDEVINVAL; 1149 fwdev->rcnt = 0; 1150 } else if(fwdev->rcnt < FW_MAXDEVRCNT) { 1151 fwdev->rcnt ++; 1152 } else { 1153 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1154 free(fwdev, M_FW); 1155 } 1156 } 1157 fc->ongonode = 0; 1158 fc->ongoaddr = CSRROMOFF; 1159 fc->ongodev = NULL; 1160 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1161 fw_bus_explore(fc); 1162 splx(s); 1163 } 1164 1165 /* 1166 * To collect device informations on the IEEE1394 bus. 1167 */ 1168 static void 1169 fw_bus_explore(struct firewire_comm *fc ) 1170 { 1171 int err = 0; 1172 struct fw_device *fwdev, *pfwdev, *tfwdev; 1173 u_int32_t addr; 1174 struct fw_xfer *xfer; 1175 struct fw_pkt *fp; 1176 1177 if(fc->status != FWBUSEXPLORE) 1178 return; 1179 1180 loop: 1181 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1182 1183 if(fc->ongonode > fc->max_node) goto done; 1184 if(fc->ongonode >= 0x3f) goto done; 1185 1186 /* check link */ 1187 /* XXX we need to check phy_id first */ 1188 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1189 if (firewire_debug) 1190 printf("node%d: link down\n", fc->ongonode); 1191 fc->ongonode++; 1192 goto loop; 1193 } 1194 1195 if(fc->ongoaddr <= CSRROMOFF && 1196 fc->ongoeui.hi == 0xffffffff && 1197 fc->ongoeui.lo == 0xffffffff ){ 1198 fc->ongoaddr = CSRROMOFF; 1199 addr = 0xf0000000 | fc->ongoaddr; 1200 }else if(fc->ongoeui.hi == 0xffffffff ){ 1201 fc->ongoaddr = CSRROMOFF + 0xc; 1202 addr = 0xf0000000 | fc->ongoaddr; 1203 }else if(fc->ongoeui.lo == 0xffffffff ){ 1204 fc->ongoaddr = CSRROMOFF + 0x10; 1205 addr = 0xf0000000 | fc->ongoaddr; 1206 }else if(fc->ongodev == NULL){ 1207 STAILQ_FOREACH(fwdev, &fc->devices, link) 1208 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1209 break; 1210 if(fwdev != NULL){ 1211 fwdev->dst = fc->ongonode; 1212 fwdev->status = FWDEVATTACHED; 1213 fc->ongonode++; 1214 fc->ongoaddr = CSRROMOFF; 1215 fc->ongodev = NULL; 1216 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1217 goto loop; 1218 } 1219 fwdev = malloc(sizeof(struct fw_device), M_FW, M_NOWAIT); 1220 if(fwdev == NULL) 1221 return; 1222 fwdev->fc = fc; 1223 fwdev->rommax = 0; 1224 fwdev->dst = fc->ongonode; 1225 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1226 fwdev->status = FWDEVINIT; 1227 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1228 1229 pfwdev = NULL; 1230 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1231 if (tfwdev->eui.hi > fwdev->eui.hi || 1232 (tfwdev->eui.hi == fwdev->eui.hi && 1233 tfwdev->eui.lo > fwdev->eui.lo)) 1234 break; 1235 pfwdev = tfwdev; 1236 } 1237 if (pfwdev == NULL) 1238 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1239 else 1240 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1241 1242 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1243 linkspeed[fwdev->speed], 1244 fc->ongoeui.hi, fc->ongoeui.lo); 1245 1246 fc->ongodev = fwdev; 1247 fc->ongoaddr = CSRROMOFF; 1248 addr = 0xf0000000 | fc->ongoaddr; 1249 }else{ 1250 addr = 0xf0000000 | fc->ongoaddr; 1251 } 1252 #if 0 1253 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1254 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1255 fw_bus_explore_callback); 1256 if(xfer == NULL) goto done; 1257 #else 1258 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 16); 1259 if(xfer == NULL){ 1260 goto done; 1261 } 1262 xfer->spd = 0; 1263 fp = (struct fw_pkt *)xfer->send.buf; 1264 fp->mode.rreqq.dest_hi = 0xffff; 1265 fp->mode.rreqq.tlrt = 0; 1266 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1267 fp->mode.rreqq.pri = 0; 1268 fp->mode.rreqq.src = 0; 1269 xfer->dst = FWLOCALBUS | fc->ongonode; 1270 fp->mode.rreqq.dst = xfer->dst; 1271 fp->mode.rreqq.dest_lo = addr; 1272 xfer->act.hand = fw_bus_explore_callback; 1273 1274 if (firewire_debug) 1275 printf("node%d: explore addr=0x%x\n", 1276 fc->ongonode, fc->ongoaddr); 1277 err = fw_asyreq(fc, -1, xfer); 1278 if(err){ 1279 fw_xfer_free( xfer); 1280 return; 1281 } 1282 #endif 1283 return; 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