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 struct crom_src_buf { 63 struct crom_src src; 64 struct crom_chunk root; 65 struct crom_chunk vendor; 66 struct crom_chunk hw; 67 }; 68 69 int firewire_debug=0, try_bmr=1; 70 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 71 "FireWire driver debug flag"); 72 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 73 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 74 "Try to be a bus manager"); 75 76 MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 77 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 78 79 #define FW_MAXASYRTY 4 80 #define FW_MAXDEVRCNT 4 81 82 devclass_t firewire_devclass; 83 84 static int firewire_match __P((device_t)); 85 static int firewire_attach __P((device_t)); 86 static int firewire_detach __P((device_t)); 87 #if 0 88 static int firewire_shutdown __P((device_t)); 89 #endif 90 static device_t firewire_add_child __P((device_t, int, const char *, int)); 91 static void fw_try_bmr __P((void *)); 92 static void fw_try_bmr_callback __P((struct fw_xfer *)); 93 static void fw_asystart __P((struct fw_xfer *)); 94 static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *)); 95 static void fw_bus_probe __P((struct firewire_comm *)); 96 static void fw_bus_explore __P((struct firewire_comm *)); 97 static void fw_bus_explore_callback __P((struct fw_xfer *)); 98 static void fw_attach_dev __P((struct firewire_comm *)); 99 #ifdef FW_VMACCESS 100 static void fw_vmaccess __P((struct fw_xfer *)); 101 #endif 102 struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 103 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *)))); 104 static int fw_bmr __P((struct firewire_comm *)); 105 106 static device_method_t firewire_methods[] = { 107 /* Device interface */ 108 DEVMETHOD(device_probe, firewire_match), 109 DEVMETHOD(device_attach, firewire_attach), 110 DEVMETHOD(device_detach, firewire_detach), 111 DEVMETHOD(device_suspend, bus_generic_suspend), 112 DEVMETHOD(device_resume, bus_generic_resume), 113 DEVMETHOD(device_shutdown, bus_generic_shutdown), 114 115 /* Bus interface */ 116 DEVMETHOD(bus_add_child, firewire_add_child), 117 DEVMETHOD(bus_print_child, bus_generic_print_child), 118 119 { 0, 0 } 120 }; 121 char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"}; 122 123 /* IEEE-1394a Table C-2 Gap count as a function of hops*/ 124 #define MAX_GAPHOP 15 125 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 126 21, 24, 26, 29, 32, 35, 37, 40}; 127 128 extern struct cdevsw firewire_cdevsw; 129 130 static driver_t firewire_driver = { 131 "firewire", 132 firewire_methods, 133 sizeof(struct firewire_softc), 134 }; 135 136 /* 137 * Lookup fwdev by node id. 138 */ 139 struct fw_device * 140 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 141 { 142 struct fw_device *fwdev; 143 int s; 144 145 s = splfw(); 146 STAILQ_FOREACH(fwdev, &fc->devices, link) 147 if (fwdev->dst == dst) 148 break; 149 splx(s); 150 151 if(fwdev == NULL) return NULL; 152 if(fwdev->status == FWDEVINVAL) return NULL; 153 return fwdev; 154 } 155 156 /* 157 * Lookup fwdev by EUI64. 158 */ 159 struct fw_device * 160 fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 161 { 162 struct fw_device *fwdev; 163 int s; 164 165 s = splfw(); 166 STAILQ_FOREACH(fwdev, &fc->devices, link) 167 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 168 break; 169 splx(s); 170 171 if(fwdev == NULL) return NULL; 172 if(fwdev->status == FWDEVINVAL) return NULL; 173 return fwdev; 174 } 175 176 /* 177 * Async. request procedure for userland application. 178 */ 179 int 180 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 181 { 182 int err = 0; 183 struct fw_xferq *xferq; 184 int tl = 0, len; 185 struct fw_pkt *fp; 186 int tcode; 187 struct tcode_info *info; 188 189 if(xfer == NULL) return EINVAL; 190 if(xfer->send.len > MAXREC(fc->maxrec)){ 191 printf("send.len > maxrec\n"); 192 return EINVAL; 193 } 194 if(xfer->act.hand == NULL){ 195 printf("act.hand == NULL\n"); 196 return EINVAL; 197 } 198 fp = (struct fw_pkt *)xfer->send.buf; 199 200 tcode = fp->mode.common.tcode & 0xf; 201 info = &fc->tcode[tcode]; 202 if (info->flag == 0) { 203 printf("invalid tcode=%d\n", tcode); 204 return EINVAL; 205 } 206 if (info->flag & FWTI_REQ) 207 xferq = fc->atq; 208 else 209 xferq = fc->ats; 210 len = info->hdr_len; 211 if (info->flag & FWTI_BLOCK_STR) 212 len += fp->mode.stream.len; 213 else if (info->flag & FWTI_BLOCK_ASY) 214 len += fp->mode.rresb.len; 215 if( len > xfer->send.len ){ 216 printf("len(%d) > send.len(%d) (tcode=%d)\n", 217 len, xfer->send.len, tcode); 218 return EINVAL; 219 } 220 xfer->send.len = len; 221 222 if(xferq->start == NULL){ 223 printf("xferq->start == NULL\n"); 224 return EINVAL; 225 } 226 if(!(xferq->queued < xferq->maxq)){ 227 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 228 xferq->queued); 229 return EINVAL; 230 } 231 232 233 if (info->flag & FWTI_TLABEL) { 234 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 235 return EIO; 236 fp->mode.hdr.tlrt = tl << 2; 237 } 238 239 xfer->tl = tl; 240 xfer->resp = 0; 241 xfer->fc = fc; 242 xfer->q = xferq; 243 xfer->retry_req = fw_asybusy; 244 245 fw_asystart(xfer); 246 return err; 247 } 248 /* 249 * Wakeup blocked process. 250 */ 251 void 252 fw_asy_callback(struct fw_xfer *xfer){ 253 wakeup(xfer); 254 return; 255 } 256 /* 257 * Postpone to later retry. 258 */ 259 void fw_asybusy(struct fw_xfer *xfer){ 260 printf("fw_asybusy\n"); 261 /* 262 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 263 */ 264 DELAY(20000); 265 fw_asystart(xfer); 266 return; 267 } 268 269 /* 270 * Async. request with given xfer structure. 271 */ 272 static void 273 fw_asystart(struct fw_xfer *xfer) 274 { 275 struct firewire_comm *fc = xfer->fc; 276 int s; 277 if(xfer->retry++ >= fc->max_asyretry){ 278 device_printf(fc->bdev, "max_asyretry exceeded\n"); 279 xfer->resp = EBUSY; 280 xfer->state = FWXF_BUSY; 281 xfer->act.hand(xfer); 282 return; 283 } 284 #if 0 /* XXX allow bus explore packets only after bus rest */ 285 if (fc->status < FWBUSEXPLORE) { 286 xfer->resp = EAGAIN; 287 xfer->state = FWXF_BUSY; 288 if (xfer->act.hand != NULL) 289 xfer->act.hand(xfer); 290 return; 291 } 292 #endif 293 s = splfw(); 294 xfer->state = FWXF_INQ; 295 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 296 xfer->q->queued ++; 297 splx(s); 298 /* XXX just queue for mbuf */ 299 if (xfer->mbuf == NULL) 300 xfer->q->start(fc); 301 return; 302 } 303 304 static int 305 firewire_match( device_t dev ) 306 { 307 device_set_desc(dev, "IEEE1394(FireWire) bus"); 308 return -140; 309 } 310 311 static void 312 firewire_xfer_timeout(struct firewire_comm *fc) 313 { 314 struct fw_xfer *xfer; 315 struct tlabel *tl; 316 struct timeval tv; 317 struct timeval split_timeout; 318 int i, s; 319 320 split_timeout.tv_sec = 6; 321 split_timeout.tv_usec = 0; 322 323 microtime(&tv); 324 timevalsub(&tv, &split_timeout); 325 326 s = splfw(); 327 for (i = 0; i < 0x40; i ++) { 328 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 329 xfer = tl->xfer; 330 if (timevalcmp(&xfer->tv, &tv, >)) 331 /* the rests are newer than this */ 332 break; 333 device_printf(fc->bdev, 334 "split transaction timeout dst=0x%x tl=0x%x\n", 335 xfer->dst, i); 336 xfer->resp = ETIMEDOUT; 337 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 338 fw_xfer_done(xfer); 339 } 340 } 341 splx(s); 342 } 343 344 static void 345 firewire_watchdog(void *arg) 346 { 347 struct firewire_comm *fc; 348 349 fc = (struct firewire_comm *)arg; 350 firewire_xfer_timeout(fc); 351 fc->timeout(fc); 352 callout_reset(&fc->timeout_callout, hz, 353 (void *)firewire_watchdog, (void *)fc); 354 } 355 356 /* 357 * The attach routine. 358 */ 359 static int 360 firewire_attach( device_t dev ) 361 { 362 int i, unitmask, mn; 363 struct firewire_softc *sc = device_get_softc(dev); 364 device_t pa = device_get_parent(dev); 365 struct firewire_comm *fc; 366 dev_t d; 367 368 fc = (struct firewire_comm *)device_get_softc(pa); 369 sc->fc = fc; 370 fc->status = -1; 371 372 unitmask = UNIT2MIN(device_get_unit(dev)); 373 374 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 375 for ( i = 0 ; i < fc->nisodma ; i++ ){ 376 mn = unitmask | i; 377 /* XXX device name should be improved */ 378 d = make_dev(&firewire_cdevsw, unit2minor(mn), 379 UID_ROOT, GID_OPERATOR, 0660, 380 "fw%x", mn); 381 #if __FreeBSD_version >= 500000 382 if (i == 0) 383 sc->dev = d; 384 else 385 dev_depends(sc->dev, d); 386 #else 387 sc->dev[i] = d; 388 #endif 389 } 390 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG), 391 UID_ROOT, GID_OPERATOR, 0660, 392 "fwmem%d", device_get_unit(dev)); 393 #if __FreeBSD_version >= 500000 394 dev_depends(sc->dev, d); 395 #else 396 sc->dev[i] = d; 397 #endif 398 CALLOUT_INIT(&sc->fc->timeout_callout); 399 CALLOUT_INIT(&sc->fc->bmr_callout); 400 CALLOUT_INIT(&sc->fc->retry_probe_callout); 401 CALLOUT_INIT(&sc->fc->busprobe_callout); 402 403 callout_reset(&sc->fc->timeout_callout, hz, 404 (void *)firewire_watchdog, (void *)sc->fc); 405 406 /* Locate our children */ 407 bus_generic_probe(dev); 408 409 /* launch attachement of the added children */ 410 bus_generic_attach(dev); 411 412 /* bus_reset */ 413 fc->ibr(fc); 414 415 return 0; 416 } 417 418 /* 419 * Attach it as child. 420 */ 421 static device_t 422 firewire_add_child(device_t dev, int order, const char *name, int unit) 423 { 424 device_t child; 425 struct firewire_softc *sc; 426 427 sc = (struct firewire_softc *)device_get_softc(dev); 428 child = device_add_child(dev, name, unit); 429 if (child) { 430 device_set_ivars(child, sc->fc); 431 device_probe_and_attach(child); 432 } 433 434 return child; 435 } 436 437 /* 438 * Dettach it. 439 */ 440 static int 441 firewire_detach( device_t dev ) 442 { 443 struct firewire_softc *sc; 444 struct csrdir *csrd, *next; 445 struct fw_device *fwdev, *fwdev_next; 446 447 sc = (struct firewire_softc *)device_get_softc(dev); 448 449 bus_generic_detach(dev); 450 451 callout_stop(&sc->fc->timeout_callout); 452 callout_stop(&sc->fc->bmr_callout); 453 callout_stop(&sc->fc->retry_probe_callout); 454 callout_stop(&sc->fc->busprobe_callout); 455 456 #if __FreeBSD_version >= 500000 457 destroy_dev(sc->dev); 458 #else 459 { 460 int j; 461 for (j = 0 ; j < sc->fc->nisodma + 1; j++) 462 destroy_dev(sc->dev[j]); 463 } 464 #endif 465 /* XXX xfree_free and untimeout on all xfers */ 466 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 467 fwdev = fwdev_next) { 468 fwdev_next = STAILQ_NEXT(fwdev, link); 469 free(fwdev, M_FW); 470 } 471 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 472 next = SLIST_NEXT(csrd, link); 473 free(csrd, M_FW); 474 } 475 free(sc->fc->topology_map, M_FW); 476 free(sc->fc->speed_map, M_FW); 477 free(sc->fc->crom_src_buf, M_FW); 478 return(0); 479 } 480 #if 0 481 static int 482 firewire_shutdown( device_t dev ) 483 { 484 return 0; 485 } 486 #endif 487 488 489 static void 490 fw_xferq_drain(struct fw_xferq *xferq) 491 { 492 struct fw_xfer *xfer; 493 494 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 495 STAILQ_REMOVE_HEAD(&xferq->q, link); 496 xferq->queued --; 497 xfer->resp = EAGAIN; 498 fw_xfer_done(xfer); 499 } 500 } 501 502 void 503 fw_drain_txq(struct firewire_comm *fc) 504 { 505 int i; 506 507 fw_xferq_drain(fc->atq); 508 fw_xferq_drain(fc->ats); 509 for(i = 0; i < fc->nisodma; i++) 510 fw_xferq_drain(fc->it[i]); 511 } 512 513 static void 514 fw_reset_csr(struct firewire_comm *fc) 515 { 516 int i; 517 518 CSRARC(fc, STATE_CLEAR) 519 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 520 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 521 CSRARC(fc, NODE_IDS) = 0x3f; 522 523 CSRARC(fc, TOPO_MAP + 8) = 0; 524 fc->irm = -1; 525 526 fc->max_node = -1; 527 528 for(i = 2; i < 0x100/4 - 2 ; i++){ 529 CSRARC(fc, SPED_MAP + i * 4) = 0; 530 } 531 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 532 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 533 CSRARC(fc, RESET_START) = 0; 534 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 535 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 536 CSRARC(fc, CYCLE_TIME) = 0x0; 537 CSRARC(fc, BUS_TIME) = 0x0; 538 CSRARC(fc, BUS_MGR_ID) = 0x3f; 539 CSRARC(fc, BANDWIDTH_AV) = 4915; 540 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 541 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 542 CSRARC(fc, IP_CHANNELS) = (1 << 31); 543 544 CSRARC(fc, CONF_ROM) = 0x04 << 24; 545 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 546 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 547 1 << 28 | 0xff << 16 | 0x09 << 8; 548 CSRARC(fc, CONF_ROM + 0xc) = 0; 549 550 /* DV depend CSRs see blue book */ 551 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 552 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 553 554 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 555 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 556 } 557 558 static void 559 fw_init_crom(struct firewire_comm *fc) 560 { 561 struct crom_src *src; 562 563 fc->crom_src_buf = (struct crom_src_buf *) 564 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 565 if (fc->crom_src_buf == NULL) 566 return; 567 568 src = &fc->crom_src_buf->src; 569 bzero(src, sizeof(struct crom_src)); 570 571 /* BUS info sample */ 572 src->hdr.info_len = 4; 573 574 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 575 576 src->businfo.irmc = 1; 577 src->businfo.cmc = 1; 578 src->businfo.isc = 1; 579 src->businfo.bmc = 1; 580 src->businfo.pmc = 0; 581 src->businfo.cyc_clk_acc = 100; 582 src->businfo.max_rec = fc->maxrec; 583 src->businfo.max_rom = MAXROM_4; 584 src->businfo.generation = 0; 585 src->businfo.link_spd = fc->speed; 586 587 src->businfo.eui64.hi = fc->eui.hi; 588 src->businfo.eui64.lo = fc->eui.lo; 589 590 STAILQ_INIT(&src->chunk_list); 591 592 fc->crom_src = src; 593 fc->crom_root = &fc->crom_src_buf->root; 594 } 595 596 static void 597 fw_reset_crom(struct firewire_comm *fc) 598 { 599 struct crom_src_buf *buf; 600 struct crom_src *src; 601 struct crom_chunk *root; 602 603 if (fc->crom_src_buf == NULL) 604 fw_init_crom(fc); 605 606 buf = fc->crom_src_buf; 607 src = fc->crom_src; 608 root = fc->crom_root; 609 610 src->businfo.generation ++; 611 STAILQ_INIT(&src->chunk_list); 612 613 bzero(root, sizeof(struct crom_chunk)); 614 crom_add_chunk(src, NULL, root, 0); 615 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 616 /* private company_id */ 617 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 618 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 619 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 620 crom_add_simple_text(src, root, &buf->hw, hostname); 621 } 622 623 /* 624 * Called after bus reset. 625 */ 626 void 627 fw_busreset(struct firewire_comm *fc) 628 { 629 struct firewire_dev_comm *fdc; 630 device_t *devlistp; 631 int i, devcnt; 632 633 switch(fc->status){ 634 case FWBUSMGRELECT: 635 callout_stop(&fc->bmr_callout); 636 break; 637 default: 638 break; 639 } 640 fc->status = FWBUSRESET; 641 fw_reset_csr(fc); 642 fw_reset_crom(fc); 643 644 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 645 for( i = 0 ; i < devcnt ; i++) 646 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 647 fdc = device_get_softc(devlistp[i]); 648 if (fdc->post_busreset != NULL) 649 fdc->post_busreset(fdc); 650 } 651 free(devlistp, M_TEMP); 652 } 653 654 crom_load(&fc->crom_src_buf->src, fc->config_rom, CROMSIZE); 655 } 656 657 /* Call once after reboot */ 658 void fw_init(struct firewire_comm *fc) 659 { 660 int i; 661 struct csrdir *csrd; 662 #ifdef FW_VMACCESS 663 struct fw_xfer *xfer; 664 struct fw_bind *fwb; 665 #endif 666 667 fc->max_asyretry = FW_MAXASYRTY; 668 669 fc->arq->queued = 0; 670 fc->ars->queued = 0; 671 fc->atq->queued = 0; 672 fc->ats->queued = 0; 673 674 fc->arq->buf = NULL; 675 fc->ars->buf = NULL; 676 fc->atq->buf = NULL; 677 fc->ats->buf = NULL; 678 679 fc->arq->flag = 0; 680 fc->ars->flag = 0; 681 fc->atq->flag = 0; 682 fc->ats->flag = 0; 683 684 STAILQ_INIT(&fc->atq->q); 685 STAILQ_INIT(&fc->ats->q); 686 687 for( i = 0 ; i < fc->nisodma ; i ++ ){ 688 fc->it[i]->queued = 0; 689 fc->ir[i]->queued = 0; 690 691 fc->it[i]->start = NULL; 692 fc->ir[i]->start = NULL; 693 694 fc->it[i]->buf = NULL; 695 fc->ir[i]->buf = NULL; 696 697 fc->it[i]->flag = FWXFERQ_STREAM; 698 fc->ir[i]->flag = FWXFERQ_STREAM; 699 700 STAILQ_INIT(&fc->it[i]->q); 701 STAILQ_INIT(&fc->ir[i]->q); 702 703 STAILQ_INIT(&fc->it[i]->binds); 704 STAILQ_INIT(&fc->ir[i]->binds); 705 } 706 707 fc->arq->maxq = FWMAXQUEUE; 708 fc->ars->maxq = FWMAXQUEUE; 709 fc->atq->maxq = FWMAXQUEUE; 710 fc->ats->maxq = FWMAXQUEUE; 711 712 for( i = 0 ; i < fc->nisodma ; i++){ 713 fc->ir[i]->maxq = FWMAXQUEUE; 714 fc->it[i]->maxq = FWMAXQUEUE; 715 } 716 /* Initialize csr registers */ 717 fc->topology_map = (struct fw_topology_map *)malloc( 718 sizeof(struct fw_topology_map), 719 M_FW, M_NOWAIT | M_ZERO); 720 fc->speed_map = (struct fw_speed_map *)malloc( 721 sizeof(struct fw_speed_map), 722 M_FW, M_NOWAIT | M_ZERO); 723 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 724 CSRARC(fc, TOPO_MAP + 4) = 1; 725 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 726 CSRARC(fc, SPED_MAP + 4) = 1; 727 728 STAILQ_INIT(&fc->devices); 729 STAILQ_INIT(&fc->pending); 730 731 /* Initialize csr ROM work space */ 732 SLIST_INIT(&fc->ongocsr); 733 SLIST_INIT(&fc->csrfree); 734 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 735 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 736 if(csrd == NULL) break; 737 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 738 } 739 740 /* Initialize Async handlers */ 741 STAILQ_INIT(&fc->binds); 742 for( i = 0 ; i < 0x40 ; i++){ 743 STAILQ_INIT(&fc->tlabels[i]); 744 } 745 746 /* DV depend CSRs see blue book */ 747 #if 0 748 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 749 CSRARC(fc, oPCR) = 0x8000007a; 750 for(i = 4 ; i < 0x7c/4 ; i+=4){ 751 CSRARC(fc, i + oPCR) = 0x8000007a; 752 } 753 754 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 755 CSRARC(fc, iPCR) = 0x803f0000; 756 for(i = 4 ; i < 0x7c/4 ; i+=4){ 757 CSRARC(fc, i + iPCR) = 0x0; 758 } 759 #endif 760 761 fc->crom_src_buf = NULL; 762 763 #ifdef FW_VMACCESS 764 xfer = fw_xfer_alloc(); 765 if(xfer == NULL) return; 766 767 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 768 if(fwb == NULL){ 769 fw_xfer_free(xfer); 770 } 771 xfer->act.hand = fw_vmaccess; 772 xfer->fc = fc; 773 xfer->sc = NULL; 774 775 fwb->start_hi = 0x2; 776 fwb->start_lo = 0; 777 fwb->addrlen = 0xffffffff; 778 fwb->xfer = xfer; 779 fw_bindadd(fc, fwb); 780 #endif 781 } 782 783 /* 784 * To lookup binded process from IEEE1394 address. 785 */ 786 struct fw_bind * 787 fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 788 { 789 struct fw_bind *tfw; 790 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 791 tfw = STAILQ_NEXT(tfw, fclist)){ 792 if (tfw->act_type != FWACT_NULL && 793 tfw->start_hi == dest_hi && 794 tfw->start_lo <= dest_lo && 795 (tfw->start_lo + tfw->addrlen) > dest_lo){ 796 return(tfw); 797 } 798 } 799 return(NULL); 800 } 801 802 /* 803 * To bind IEEE1394 address block to process. 804 */ 805 int 806 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 807 { 808 struct fw_bind *tfw, *tfw2 = NULL; 809 int err = 0; 810 tfw = STAILQ_FIRST(&fc->binds); 811 if(tfw == NULL){ 812 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 813 goto out; 814 } 815 if((tfw->start_hi > fwb->start_hi) || 816 (tfw->start_hi == fwb->start_hi && 817 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 818 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 819 goto out; 820 } 821 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 822 if((tfw->start_hi < fwb->start_hi) || 823 (tfw->start_hi == fwb->start_hi && 824 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 825 tfw2 = STAILQ_NEXT(tfw, fclist); 826 if(tfw2 == NULL) 827 break; 828 if((tfw2->start_hi > fwb->start_hi) || 829 (tfw2->start_hi == fwb->start_hi && 830 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 831 break; 832 }else{ 833 err = EBUSY; 834 goto out; 835 } 836 } 837 } 838 if(tfw != NULL){ 839 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 840 }else{ 841 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 842 } 843 out: 844 if (!err && fwb->act_type == FWACT_CH) 845 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 846 return err; 847 } 848 849 /* 850 * To free IEEE1394 address block. 851 */ 852 int 853 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 854 { 855 int s; 856 struct fw_xfer *xfer, *next; 857 858 s = splfw(); 859 /* shall we check the existance? */ 860 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 861 /* shall we do this? */ 862 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 863 next = STAILQ_NEXT(xfer, link); 864 fw_xfer_free(xfer); 865 } 866 STAILQ_INIT(&fwb->xferlist); 867 868 splx(s); 869 return 0; 870 } 871 872 /* 873 * To free transaction label. 874 */ 875 static void 876 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 877 { 878 struct tlabel *tl; 879 int s = splfw(); 880 881 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 882 tl = STAILQ_NEXT(tl, link)){ 883 if(tl->xfer == xfer){ 884 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 885 free(tl, M_FW); 886 splx(s); 887 return; 888 } 889 } 890 splx(s); 891 return; 892 } 893 894 /* 895 * To obtain XFER structure by transaction label. 896 */ 897 static struct fw_xfer * 898 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 899 { 900 struct fw_xfer *xfer; 901 struct tlabel *tl; 902 int s = splfw(); 903 904 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 905 tl = STAILQ_NEXT(tl, link)){ 906 if(tl->xfer->dst == node){ 907 xfer = tl->xfer; 908 splx(s); 909 if (firewire_debug > 2) 910 printf("fw_tl2xfer: found tl=%d\n", tlabel); 911 return(xfer); 912 } 913 } 914 if (firewire_debug > 1) 915 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 916 splx(s); 917 return(NULL); 918 } 919 920 /* 921 * To allocate IEEE1394 XFER structure. 922 */ 923 struct fw_xfer * 924 fw_xfer_alloc(struct malloc_type *type) 925 { 926 struct fw_xfer *xfer; 927 928 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 929 if (xfer == NULL) 930 return xfer; 931 932 microtime(&xfer->tv); 933 xfer->malloc = type; 934 935 return xfer; 936 } 937 938 struct fw_xfer * 939 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 940 { 941 struct fw_xfer *xfer; 942 943 xfer = fw_xfer_alloc(type); 944 xfer->send.len = send_len; 945 xfer->recv.len = recv_len; 946 if (xfer == NULL) 947 return(NULL); 948 if (send_len) { 949 xfer->send.buf = malloc(send_len, type, M_NOWAIT | M_ZERO); 950 if (xfer->send.buf == NULL) { 951 fw_xfer_free(xfer); 952 return(NULL); 953 } 954 } 955 if (recv_len) { 956 xfer->recv.buf = malloc(recv_len, type, M_NOWAIT); 957 if (xfer->recv.buf == NULL) { 958 if (xfer->send.buf != NULL) 959 free(xfer->send.buf, type); 960 fw_xfer_free(xfer); 961 return(NULL); 962 } 963 } 964 return(xfer); 965 } 966 967 /* 968 * IEEE1394 XFER post process. 969 */ 970 void 971 fw_xfer_done(struct fw_xfer *xfer) 972 { 973 if (xfer->act.hand == NULL) 974 return; 975 976 if (xfer->fc->status != FWBUSRESET) 977 xfer->act.hand(xfer); 978 else { 979 printf("fw_xfer_done: pending\n"); 980 if (xfer->fc != NULL) 981 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 982 else 983 panic("fw_xfer_done: why xfer->fc is NULL?"); 984 } 985 } 986 987 void 988 fw_xfer_unload(struct fw_xfer* xfer) 989 { 990 int s; 991 992 if(xfer == NULL ) return; 993 if(xfer->state == FWXF_INQ){ 994 printf("fw_xfer_free FWXF_INQ\n"); 995 s = splfw(); 996 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 997 xfer->q->queued --; 998 splx(s); 999 } 1000 if (xfer->fc != NULL) { 1001 #if 1 1002 if(xfer->state == FWXF_START) 1003 /* 1004 * This could happen if: 1005 * 1. We call fwohci_arcv() before fwohci_txd(). 1006 * 2. firewire_watch() is called. 1007 */ 1008 printf("fw_xfer_free FWXF_START\n"); 1009 #endif 1010 fw_tl_free(xfer->fc, xfer); 1011 } 1012 xfer->state = FWXF_INIT; 1013 xfer->resp = 0; 1014 xfer->retry = 0; 1015 } 1016 /* 1017 * To free IEEE1394 XFER structure. 1018 */ 1019 void 1020 fw_xfer_free( struct fw_xfer* xfer) 1021 { 1022 if(xfer == NULL ) return; 1023 fw_xfer_unload(xfer); 1024 if(xfer->send.buf != NULL){ 1025 free(xfer->send.buf, xfer->malloc); 1026 } 1027 if(xfer->recv.buf != NULL){ 1028 free(xfer->recv.buf, xfer->malloc); 1029 } 1030 free(xfer, xfer->malloc); 1031 } 1032 1033 static void 1034 fw_asy_callback_free(struct fw_xfer *xfer) 1035 { 1036 #if 0 1037 printf("asyreq done state=%d resp=%d\n", 1038 xfer->state, xfer->resp); 1039 #endif 1040 fw_xfer_free(xfer); 1041 } 1042 1043 /* 1044 * To configure PHY. 1045 */ 1046 static void 1047 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1048 { 1049 struct fw_xfer *xfer; 1050 struct fw_pkt *fp; 1051 1052 fc->status = FWBUSPHYCONF; 1053 1054 xfer = fw_xfer_alloc_buf(M_FWXFER, 12, 0); 1055 if (xfer == NULL) 1056 return; 1057 xfer->fc = fc; 1058 xfer->retry_req = fw_asybusy; 1059 xfer->act.hand = fw_asy_callback_free; 1060 1061 fp = (struct fw_pkt *)xfer->send.buf; 1062 fp->mode.ld[1] = 0; 1063 if (root_node >= 0) 1064 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1065 if (gap_count >= 0) 1066 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1067 fp->mode.ld[2] = ~fp->mode.ld[1]; 1068 /* XXX Dangerous, how to pass PHY packet to device driver */ 1069 fp->mode.common.tcode |= FWTCODE_PHY; 1070 1071 if (firewire_debug) 1072 printf("send phy_config root_node=%d gap_count=%d\n", 1073 root_node, gap_count); 1074 fw_asyreq(fc, -1, xfer); 1075 } 1076 1077 #if 0 1078 /* 1079 * Dump self ID. 1080 */ 1081 static void 1082 fw_print_sid(u_int32_t sid) 1083 { 1084 union fw_self_id *s; 1085 s = (union fw_self_id *) &sid; 1086 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1087 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1088 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1089 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1090 s->p0.power_class, s->p0.port0, s->p0.port1, 1091 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1092 } 1093 #endif 1094 1095 /* 1096 * To receive self ID. 1097 */ 1098 void fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) 1099 { 1100 u_int32_t *p; 1101 union fw_self_id *self_id; 1102 u_int i, j, node, c_port = 0, i_branch = 0; 1103 1104 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1105 fc->status = FWBUSINIT; 1106 fc->max_node = fc->nodeid & 0x3f; 1107 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1108 fc->status = FWBUSCYMELECT; 1109 fc->topology_map->crc_len = 2; 1110 fc->topology_map->generation ++; 1111 fc->topology_map->self_id_count = 0; 1112 fc->topology_map->node_count = 0; 1113 fc->speed_map->generation ++; 1114 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1115 self_id = &fc->topology_map->self_id[0]; 1116 for(i = 0; i < fc->sid_cnt; i ++){ 1117 if (sid[1] != ~sid[0]) { 1118 printf("fw_sidrcv: invalid self-id packet\n"); 1119 sid += 2; 1120 continue; 1121 } 1122 *self_id = *((union fw_self_id *)sid); 1123 fc->topology_map->crc_len++; 1124 if(self_id->p0.sequel == 0){ 1125 fc->topology_map->node_count ++; 1126 c_port = 0; 1127 #if 0 1128 fw_print_sid(sid[0]); 1129 #endif 1130 node = self_id->p0.phy_id; 1131 if(fc->max_node < node){ 1132 fc->max_node = self_id->p0.phy_id; 1133 } 1134 /* XXX I'm not sure this is the right speed_map */ 1135 fc->speed_map->speed[node][node] 1136 = self_id->p0.phy_speed; 1137 for (j = 0; j < node; j ++) { 1138 fc->speed_map->speed[j][node] 1139 = fc->speed_map->speed[node][j] 1140 = min(fc->speed_map->speed[j][j], 1141 self_id->p0.phy_speed); 1142 } 1143 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1144 (self_id->p0.link_active && self_id->p0.contender)) { 1145 fc->irm = self_id->p0.phy_id; 1146 } 1147 if(self_id->p0.port0 >= 0x2){ 1148 c_port++; 1149 } 1150 if(self_id->p0.port1 >= 0x2){ 1151 c_port++; 1152 } 1153 if(self_id->p0.port2 >= 0x2){ 1154 c_port++; 1155 } 1156 } 1157 if(c_port > 2){ 1158 i_branch += (c_port - 2); 1159 } 1160 sid += 2; 1161 self_id++; 1162 fc->topology_map->self_id_count ++; 1163 } 1164 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1165 /* CRC */ 1166 fc->topology_map->crc = fw_crc16( 1167 (u_int32_t *)&fc->topology_map->generation, 1168 fc->topology_map->crc_len * 4); 1169 fc->speed_map->crc = fw_crc16( 1170 (u_int32_t *)&fc->speed_map->generation, 1171 fc->speed_map->crc_len * 4); 1172 /* byteswap and copy to CSR */ 1173 p = (u_int32_t *)fc->topology_map; 1174 for (i = 0; i <= fc->topology_map->crc_len; i++) 1175 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1176 p = (u_int32_t *)fc->speed_map; 1177 CSRARC(fc, SPED_MAP) = htonl(*p++); 1178 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1179 /* don't byte-swap u_int8_t array */ 1180 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1181 1182 fc->max_hop = fc->max_node - i_branch; 1183 printf(", maxhop <= %d", fc->max_hop); 1184 1185 if(fc->irm == -1 ){ 1186 printf(", Not found IRM capable node"); 1187 }else{ 1188 printf(", cable IRM = %d", fc->irm); 1189 if (fc->irm == fc->nodeid) 1190 printf(" (me)"); 1191 } 1192 printf("\n"); 1193 1194 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1195 if (fc->irm == fc->nodeid) { 1196 fc->status = FWBUSMGRDONE; 1197 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1198 fw_bmr(fc); 1199 } else { 1200 fc->status = FWBUSMGRELECT; 1201 callout_reset(&fc->bmr_callout, hz/8, 1202 (void *)fw_try_bmr, (void *)fc); 1203 } 1204 } else 1205 fc->status = FWBUSMGRDONE; 1206 1207 callout_reset(&fc->busprobe_callout, hz/4, 1208 (void *)fw_bus_probe, (void *)fc); 1209 } 1210 1211 /* 1212 * To probe devices on the IEEE1394 bus. 1213 */ 1214 static void 1215 fw_bus_probe(struct firewire_comm *fc) 1216 { 1217 int s; 1218 struct fw_device *fwdev, *next; 1219 1220 s = splfw(); 1221 fc->status = FWBUSEXPLORE; 1222 fc->retry_count = 0; 1223 1224 /* 1225 * Invalidate all devices, just after bus reset. Devices 1226 * to be removed has not been seen longer time. 1227 */ 1228 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1229 next = STAILQ_NEXT(fwdev, link); 1230 if (fwdev->status != FWDEVINVAL) { 1231 fwdev->status = FWDEVINVAL; 1232 fwdev->rcnt = 0; 1233 } else if(fwdev->rcnt < FW_MAXDEVRCNT) { 1234 fwdev->rcnt ++; 1235 } else { 1236 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1237 free(fwdev, M_FW); 1238 } 1239 } 1240 fc->ongonode = 0; 1241 fc->ongoaddr = CSRROMOFF; 1242 fc->ongodev = NULL; 1243 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1244 fw_bus_explore(fc); 1245 splx(s); 1246 } 1247 1248 /* 1249 * To collect device informations on the IEEE1394 bus. 1250 */ 1251 static void 1252 fw_bus_explore(struct firewire_comm *fc ) 1253 { 1254 int err = 0; 1255 struct fw_device *fwdev, *pfwdev, *tfwdev; 1256 u_int32_t addr; 1257 struct fw_xfer *xfer; 1258 struct fw_pkt *fp; 1259 1260 if(fc->status != FWBUSEXPLORE) 1261 return; 1262 1263 loop: 1264 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1265 1266 if(fc->ongonode > fc->max_node) goto done; 1267 if(fc->ongonode >= 0x3f) goto done; 1268 1269 /* check link */ 1270 /* XXX we need to check phy_id first */ 1271 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1272 if (firewire_debug) 1273 printf("node%d: link down\n", fc->ongonode); 1274 fc->ongonode++; 1275 goto loop; 1276 } 1277 1278 if(fc->ongoaddr <= CSRROMOFF && 1279 fc->ongoeui.hi == 0xffffffff && 1280 fc->ongoeui.lo == 0xffffffff ){ 1281 fc->ongoaddr = CSRROMOFF; 1282 addr = 0xf0000000 | fc->ongoaddr; 1283 }else if(fc->ongoeui.hi == 0xffffffff ){ 1284 fc->ongoaddr = CSRROMOFF + 0xc; 1285 addr = 0xf0000000 | fc->ongoaddr; 1286 }else if(fc->ongoeui.lo == 0xffffffff ){ 1287 fc->ongoaddr = CSRROMOFF + 0x10; 1288 addr = 0xf0000000 | fc->ongoaddr; 1289 }else if(fc->ongodev == NULL){ 1290 STAILQ_FOREACH(fwdev, &fc->devices, link) 1291 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1292 break; 1293 if(fwdev != NULL){ 1294 fwdev->dst = fc->ongonode; 1295 fwdev->status = FWDEVATTACHED; 1296 fc->ongonode++; 1297 fc->ongoaddr = CSRROMOFF; 1298 fc->ongodev = NULL; 1299 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1300 goto loop; 1301 } 1302 fwdev = malloc(sizeof(struct fw_device), M_FW, 1303 M_NOWAIT | M_ZERO); 1304 if(fwdev == NULL) 1305 return; 1306 fwdev->fc = fc; 1307 fwdev->rommax = 0; 1308 fwdev->dst = fc->ongonode; 1309 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1310 fwdev->status = FWDEVINIT; 1311 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1312 1313 pfwdev = NULL; 1314 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1315 if (tfwdev->eui.hi > fwdev->eui.hi || 1316 (tfwdev->eui.hi == fwdev->eui.hi && 1317 tfwdev->eui.lo > fwdev->eui.lo)) 1318 break; 1319 pfwdev = tfwdev; 1320 } 1321 if (pfwdev == NULL) 1322 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1323 else 1324 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1325 1326 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1327 linkspeed[fwdev->speed], 1328 fc->ongoeui.hi, fc->ongoeui.lo); 1329 1330 fc->ongodev = fwdev; 1331 fc->ongoaddr = CSRROMOFF; 1332 addr = 0xf0000000 | fc->ongoaddr; 1333 }else{ 1334 addr = 0xf0000000 | fc->ongoaddr; 1335 } 1336 #if 0 1337 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1338 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1339 fw_bus_explore_callback); 1340 if(xfer == NULL) goto done; 1341 #else 1342 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 16); 1343 if(xfer == NULL){ 1344 goto done; 1345 } 1346 xfer->spd = 0; 1347 fp = (struct fw_pkt *)xfer->send.buf; 1348 fp->mode.rreqq.dest_hi = 0xffff; 1349 fp->mode.rreqq.tlrt = 0; 1350 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1351 fp->mode.rreqq.pri = 0; 1352 fp->mode.rreqq.src = 0; 1353 xfer->dst = FWLOCALBUS | fc->ongonode; 1354 fp->mode.rreqq.dst = xfer->dst; 1355 fp->mode.rreqq.dest_lo = addr; 1356 xfer->act.hand = fw_bus_explore_callback; 1357 1358 if (firewire_debug) 1359 printf("node%d: explore addr=0x%x\n", 1360 fc->ongonode, fc->ongoaddr); 1361 err = fw_asyreq(fc, -1, xfer); 1362 if(err){ 1363 fw_xfer_free( xfer); 1364 return; 1365 } 1366 #endif 1367 return; 1368 done: 1369 /* fw_attach_devs */ 1370 fc->status = FWBUSEXPDONE; 1371 if (firewire_debug) 1372 printf("bus_explore done\n"); 1373 fw_attach_dev(fc); 1374 return; 1375 1376 } 1377 1378 /* Portable Async. request read quad */ 1379 struct fw_xfer * 1380 asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1381 u_int32_t addr_hi, u_int32_t addr_lo, 1382 void (*hand) __P((struct fw_xfer*))) 1383 { 1384 struct fw_xfer *xfer; 1385 struct fw_pkt *fp; 1386 int err; 1387 1388 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 16); 1389 if (xfer == NULL) 1390 return NULL; 1391 1392 xfer->spd = spd; /* XXX:min(spd, fc->spd) */ 1393 fp = (struct fw_pkt *)xfer->send.buf; 1394 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1395 if(tl & FWP_TL_VALID){ 1396 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1397 }else{ 1398 fp->mode.rreqq.tlrt = 0; 1399 } 1400 fp->mode.rreqq.tlrt |= rt & 0x3; 1401 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1402 fp->mode.rreqq.pri = 0; 1403 fp->mode.rreqq.src = 0; 1404 xfer->dst = addr_hi >> 16; 1405 fp->mode.rreqq.dst = xfer->dst; 1406 fp->mode.rreqq.dest_lo = addr_lo; 1407 xfer->act.hand = hand; 1408 1409 err = fw_asyreq(fc, -1, xfer); 1410 if(err){ 1411 fw_xfer_free( xfer); 1412 return NULL; 1413 } 1414 return xfer; 1415 } 1416 1417 /* 1418 * Callback for the IEEE1394 bus information collection. 1419 */ 1420 static void 1421 fw_bus_explore_callback(struct fw_xfer *xfer) 1422 { 1423 struct firewire_comm *fc; 1424 struct fw_pkt *sfp,*rfp; 1425 struct csrhdr *chdr; 1426 struct csrdir *csrd; 1427 struct csrreg *csrreg; 1428 u_int32_t offset; 1429 1430 1431 if(xfer == NULL) { 1432 printf("xfer == NULL\n"); 1433 return; 1434 } 1435 fc = xfer->fc; 1436 1437 if (firewire_debug) 1438 printf("node%d: callback addr=0x%x\n", 1439 fc->ongonode, fc->ongoaddr); 1440 1441 if(xfer->resp != 0){ 1442 printf("node%d: resp=%d addr=0x%x\n", 1443 fc->ongonode, xfer->resp, fc->ongoaddr); 1444 goto errnode; 1445 } 1446 1447 if(xfer->send.buf == NULL){ 1448 printf("node%d: send.buf=NULL addr=0x%x\n", 1449 fc->ongonode, fc->ongoaddr); 1450 goto errnode; 1451 } 1452 sfp = (struct fw_pkt *)xfer->send.buf; 1453 1454 if(xfer->recv.buf == NULL){ 1455 printf("node%d: recv.buf=NULL addr=0x%x\n", 1456 fc->ongonode, fc->ongoaddr); 1457 goto errnode; 1458 } 1459 rfp = (struct fw_pkt *)xfer->recv.buf; 1460 #if 0 1461 { 1462 u_int32_t *qld; 1463 int i; 1464 qld = (u_int32_t *)xfer->recv.buf; 1465 printf("len:%d\n", xfer->recv.len); 1466 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1467 printf("0x%08x ", rfp->mode.ld[i/4]); 1468 if((i % 16) == 15) printf("\n"); 1469 } 1470 if((i % 16) != 15) printf("\n"); 1471 } 1472 #endif 1473 if(fc->ongodev == NULL){ 1474 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1475 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1476 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1477 /* If CSR is minimal confinguration, more investgation is not needed. */ 1478 if(chdr->info_len == 1){ 1479 if (firewire_debug) 1480 printf("node%d: minimal config\n", 1481 fc->ongonode); 1482 goto nextnode; 1483 }else{ 1484 fc->ongoaddr = CSRROMOFF + 0xc; 1485 } 1486 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1487 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1488 fc->ongoaddr = CSRROMOFF + 0x10; 1489 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1490 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1491 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1492 if (firewire_debug) 1493 printf("node%d: eui64 is zero.\n", 1494 fc->ongonode); 1495 goto nextnode; 1496 } 1497 fc->ongoaddr = CSRROMOFF; 1498 } 1499 }else{ 1500 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1501 if(fc->ongoaddr > fc->ongodev->rommax){ 1502 fc->ongodev->rommax = fc->ongoaddr; 1503 } 1504 csrd = SLIST_FIRST(&fc->ongocsr); 1505 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1506 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1507 offset = CSRROMOFF; 1508 }else{ 1509 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1510 offset = csrd->off; 1511 } 1512 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1513 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1514 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1515 csrd = SLIST_FIRST(&fc->csrfree); 1516 if(csrd == NULL){ 1517 goto nextnode; 1518 }else{ 1519 csrd->ongoaddr = fc->ongoaddr; 1520 fc->ongoaddr += csrreg->val * 4; 1521 csrd->off = fc->ongoaddr; 1522 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1523 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1524 goto nextaddr; 1525 } 1526 } 1527 } 1528 fc->ongoaddr += 4; 1529 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1530 (fc->ongodev->rommax < 0x414)){ 1531 if(fc->ongodev->rommax <= 0x414){ 1532 csrd = SLIST_FIRST(&fc->csrfree); 1533 if(csrd == NULL) goto nextnode; 1534 csrd->off = fc->ongoaddr; 1535 csrd->ongoaddr = fc->ongoaddr; 1536 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1537 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1538 } 1539 goto nextaddr; 1540 } 1541 1542 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1543 if(csrd == NULL){ 1544 goto nextnode; 1545 }; 1546 fc->ongoaddr = csrd->ongoaddr + 4; 1547 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1548 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1549 csrd = SLIST_FIRST(&fc->ongocsr); 1550 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1551 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1552 offset = CSRROMOFF; 1553 }else{ 1554 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1555 offset = csrd->off; 1556 } 1557 } 1558 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1559 goto nextnode; 1560 } 1561 } 1562 nextaddr: 1563 fw_xfer_free( xfer); 1564 fw_bus_explore(fc); 1565 return; 1566 errnode: 1567 fc->retry_count++; 1568 if (fc->ongodev != NULL) 1569 fc->ongodev->status = FWDEVINVAL; 1570 nextnode: 1571 fw_xfer_free( xfer); 1572 fc->ongonode++; 1573 /* housekeeping work space */ 1574 fc->ongoaddr = CSRROMOFF; 1575 fc->ongodev = NULL; 1576 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1577 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1578 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1579 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1580 } 1581 fw_bus_explore(fc); 1582 return; 1583 } 1584 1585 /* 1586 * To attach sub-devices layer onto IEEE1394 bus. 1587 */ 1588 static void 1589 fw_attach_dev(struct firewire_comm *fc) 1590 { 1591 struct fw_device *fwdev; 1592 struct fw_xfer *xfer; 1593 int i, err; 1594 device_t *devlistp; 1595 int devcnt; 1596 struct firewire_dev_comm *fdc; 1597 1598 STAILQ_FOREACH(fwdev, &fc->devices, link) 1599 if (fwdev->status == FWDEVINIT) 1600 fwdev->status = FWDEVATTACHED; 1601 1602 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1603 if( err != 0 ) 1604 return; 1605 for( i = 0 ; i < devcnt ; i++){ 1606 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1607 fdc = device_get_softc(devlistp[i]); 1608 if (fdc->post_explore != NULL) 1609 fdc->post_explore(fdc); 1610 } 1611 } 1612 free(devlistp, M_TEMP); 1613 1614 /* call pending handlers */ 1615 i = 0; 1616 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1617 STAILQ_REMOVE_HEAD(&fc->pending, link); 1618 i++; 1619 if (xfer->act.hand) 1620 xfer->act.hand(xfer); 1621 } 1622 if (i > 0) 1623 printf("fw_attach_dev: %d pending handlers called\n", i); 1624 if (fc->retry_count > 0) { 1625 printf("probe failed for %d node\n", fc->retry_count); 1626 #if 0 1627 callout_reset(&fc->retry_probe_callout, hz*2, 1628 (void *)fc->ibr, (void *)fc); 1629 #endif 1630 } 1631 return; 1632 } 1633 1634 /* 1635 * To allocate uniq transaction label. 1636 */ 1637 static int 1638 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1639 { 1640 u_int i; 1641 struct tlabel *tl, *tmptl; 1642 int s; 1643 static u_int32_t label = 0; 1644 1645 s = splfw(); 1646 for( i = 0 ; i < 0x40 ; i ++){ 1647 label = (label + 1) & 0x3f; 1648 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1649 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1650 if(tmptl->xfer->dst == xfer->dst) break; 1651 } 1652 if(tmptl == NULL) { 1653 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1654 if (tl == NULL) { 1655 splx(s); 1656 return (-1); 1657 } 1658 tl->xfer = xfer; 1659 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1660 splx(s); 1661 if (firewire_debug > 1) 1662 printf("fw_get_tlabel: dst=%d tl=%d\n", 1663 xfer->dst, label); 1664 return(label); 1665 } 1666 } 1667 splx(s); 1668 1669 printf("fw_get_tlabel: no free tlabel\n"); 1670 return(-1); 1671 } 1672 1673 static void 1674 fw_rcv_copy(struct fw_xfer *xfer, struct iovec *vec, int nvec) 1675 { 1676 char *p; 1677 int res, i, len; 1678 1679 p = xfer->recv.buf; 1680 res = xfer->recv.len; 1681 for (i = 0; i < nvec; i++, vec++) { 1682 len = vec->iov_len; 1683 if (res < len) { 1684 printf("rcv buffer(%d) is %d bytes short.\n", 1685 xfer->recv.len, len - res); 1686 len = res; 1687 } 1688 bcopy(vec->iov_base, p, len); 1689 p += len; 1690 res -= len; 1691 if (res <= 0) 1692 break; 1693 } 1694 xfer->recv.len -= res; 1695 } 1696 1697 /* 1698 * Generic packet receving process. 1699 */ 1700 void 1701 fw_rcv(struct firewire_comm *fc, struct iovec *vec, int nvec, u_int sub, u_int spd) 1702 { 1703 struct fw_pkt *fp, *resfp; 1704 struct fw_xfer *xfer; 1705 struct fw_bind *bind; 1706 struct firewire_softc *sc; 1707 int tcode, s; 1708 int i, len, oldstate; 1709 #if 0 1710 { 1711 u_int32_t *qld; 1712 int i; 1713 qld = (u_int32_t *)buf; 1714 printf("spd %d len:%d\n", spd, len); 1715 for( i = 0 ; i <= len && i < 32; i+= 4){ 1716 printf("0x%08x ", ntohl(qld[i/4])); 1717 if((i % 16) == 15) printf("\n"); 1718 } 1719 if((i % 16) != 15) printf("\n"); 1720 } 1721 #endif 1722 fp = (struct fw_pkt *)vec[0].iov_base; 1723 tcode = fp->mode.common.tcode; 1724 #if 0 /* XXX this check is not valid for RRESQ and WREQQ */ 1725 if (vec[0].iov_len < fc->tcode[tcode].hdr_len) { 1726 #if __FreeBSD_version >= 500000 1727 printf("fw_rcv: iov_len(%zu) is less than" 1728 #else 1729 printf("fw_rcv: iov_len(%u) is less than" 1730 #endif 1731 " hdr_len(%d:tcode=%d)\n", vec[0].iov_len, 1732 fc->tcode[tcode].hdr_len, tcode); 1733 } 1734 #endif 1735 switch (tcode) { 1736 case FWTCODE_WRES: 1737 case FWTCODE_RRESQ: 1738 case FWTCODE_RRESB: 1739 case FWTCODE_LRES: 1740 xfer = fw_tl2xfer(fc, fp->mode.hdr.src, 1741 fp->mode.hdr.tlrt >> 2); 1742 if(xfer == NULL) { 1743 printf("fw_rcv: unknown response " 1744 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n", 1745 tcode, 1746 fp->mode.hdr.src, 1747 fp->mode.hdr.tlrt >> 2, 1748 fp->mode.hdr.tlrt & 3, 1749 fp->mode.rresq.data); 1750 #if 1 1751 printf("try ad-hoc work around!!\n"); 1752 xfer = fw_tl2xfer(fc, fp->mode.hdr.src, 1753 (fp->mode.hdr.tlrt >> 2)^3); 1754 if (xfer == NULL) { 1755 printf("no use...\n"); 1756 goto err; 1757 } 1758 #else 1759 goto err; 1760 #endif 1761 } 1762 fw_rcv_copy(xfer, vec, nvec); 1763 xfer->resp = 0; 1764 /* make sure the packet is drained in AT queue */ 1765 oldstate = xfer->state; 1766 xfer->state = FWXF_RCVD; 1767 switch (oldstate) { 1768 case FWXF_SENT: 1769 fw_xfer_done(xfer); 1770 break; 1771 case FWXF_START: 1772 if (firewire_debug) 1773 printf("not sent yet\n"); 1774 break; 1775 default: 1776 printf("unexpected state %d\n", xfer->state); 1777 } 1778 return; 1779 case FWTCODE_WREQQ: 1780 case FWTCODE_WREQB: 1781 case FWTCODE_RREQQ: 1782 case FWTCODE_RREQB: 1783 case FWTCODE_LREQ: 1784 bind = fw_bindlookup(fc, fp->mode.rreqq.dest_hi, 1785 fp->mode.rreqq.dest_lo); 1786 if(bind == NULL){ 1787 #if __FreeBSD_version >= 500000 1788 printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%x\n", 1789 #else 1790 printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%lx\n", 1791 #endif 1792 fp->mode.wreqq.dest_hi, 1793 fp->mode.wreqq.dest_lo, 1794 tcode, 1795 fp->mode.hdr.src, 1796 ntohl(fp->mode.wreqq.data)); 1797 if (fc->status == FWBUSRESET) { 1798 printf("fw_rcv: cannot respond(bus reset)!\n"); 1799 goto err; 1800 } 1801 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 0); 1802 if(xfer == NULL){ 1803 return; 1804 } 1805 xfer->spd = spd; 1806 resfp = (struct fw_pkt *)xfer->send.buf; 1807 switch (tcode) { 1808 case FWTCODE_WREQQ: 1809 case FWTCODE_WREQB: 1810 resfp->mode.hdr.tcode = FWTCODE_WRES; 1811 xfer->send.len = 12; 1812 break; 1813 case FWTCODE_RREQQ: 1814 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1815 xfer->send.len = 16; 1816 break; 1817 case FWTCODE_RREQB: 1818 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1819 xfer->send.len = 16; 1820 break; 1821 case FWTCODE_LREQ: 1822 resfp->mode.hdr.tcode = FWTCODE_LRES; 1823 xfer->send.len = 16; 1824 break; 1825 } 1826 resfp->mode.hdr.dst = fp->mode.hdr.src; 1827 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1828 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1829 resfp->mode.rresb.rtcode = 7; 1830 resfp->mode.rresb.extcode = 0; 1831 resfp->mode.rresb.len = 0; 1832 /* 1833 xfer->act.hand = fw_asy_callback; 1834 */ 1835 xfer->act.hand = fw_xfer_free; 1836 if(fw_asyreq(fc, -1, xfer)){ 1837 fw_xfer_free( xfer); 1838 return; 1839 } 1840 goto err; 1841 } 1842 len = 0; 1843 for (i = 0; i < nvec; i ++) 1844 len += vec[i].iov_len; 1845 switch(bind->act_type){ 1846 case FWACT_XFER: 1847 /* splfw()?? */ 1848 xfer = STAILQ_FIRST(&bind->xferlist); 1849 if (xfer == NULL) { 1850 printf("Discard a packet for this bind.\n"); 1851 goto err; 1852 } 1853 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1854 fw_rcv_copy(xfer, vec, nvec); 1855 xfer->spd = spd; 1856 if (fc->status != FWBUSRESET) 1857 xfer->act.hand(xfer); 1858 else 1859 STAILQ_INSERT_TAIL(&fc->pending, xfer, link); 1860 return; 1861 break; 1862 case FWACT_CH: 1863 if(fc->ir[bind->sub]->queued >= 1864 fc->ir[bind->sub]->maxq){ 1865 device_printf(fc->bdev, 1866 "Discard a packet %x %d\n", 1867 bind->sub, 1868 fc->ir[bind->sub]->queued); 1869 goto err; 1870 } 1871 xfer = STAILQ_FIRST(&bind->xferlist); 1872 if (xfer == NULL) { 1873 printf("Discard packet for this bind\n"); 1874 goto err; 1875 } 1876 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1877 fw_rcv_copy(xfer, vec, nvec); 1878 xfer->spd = spd; 1879 s = splfw(); 1880 fc->ir[bind->sub]->queued++; 1881 STAILQ_INSERT_TAIL(&fc->ir[bind->sub]->q, xfer, link); 1882 splx(s); 1883 1884 wakeup((caddr_t)fc->ir[bind->sub]); 1885 1886 return; 1887 break; 1888 default: 1889 goto err; 1890 break; 1891 } 1892 break; 1893 case FWTCODE_STREAM: 1894 { 1895 struct fw_xferq *xferq; 1896 1897 xferq = fc->ir[sub]; 1898 #if 0 1899 printf("stream rcv dma %d len %d off %d spd %d\n", 1900 sub, len, off, spd); 1901 #endif 1902 if(xferq->queued >= xferq->maxq) { 1903 printf("receive queue is full\n"); 1904 goto err; 1905 } 1906 /* XXX get xfer from xfer queue, we don't need copy for 1907 per packet mode */ 1908 xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1909 vec[0].iov_len); 1910 if(xfer == NULL) goto err; 1911 fw_rcv_copy(xfer, vec, nvec); 1912 xfer->spd = spd; 1913 s = splfw(); 1914 xferq->queued++; 1915 STAILQ_INSERT_TAIL(&xferq->q, xfer, link); 1916 splx(s); 1917 sc = device_get_softc(fc->bdev); 1918 #if __FreeBSD_version >= 500000 1919 if (SEL_WAITING(&xferq->rsel)) 1920 #else 1921 if (&xferq->rsel.si_pid != 0) 1922 #endif 1923 selwakeup(&xferq->rsel); 1924 if (xferq->flag & FWXFERQ_WAKEUP) { 1925 xferq->flag &= ~FWXFERQ_WAKEUP; 1926 wakeup((caddr_t)xferq); 1927 } 1928 if (xferq->flag & FWXFERQ_HANDLER) { 1929 xferq->hand(xferq); 1930 } 1931 return; 1932 break; 1933 } 1934 default: 1935 printf("fw_rcv: unknow tcode %d\n", tcode); 1936 break; 1937 } 1938 err: 1939 return; 1940 } 1941 1942 /* 1943 * Post process for Bus Manager election process. 1944 */ 1945 static void 1946 fw_try_bmr_callback(struct fw_xfer *xfer) 1947 { 1948 struct fw_pkt *rfp; 1949 struct firewire_comm *fc; 1950 int bmr; 1951 1952 if (xfer == NULL) 1953 return; 1954 fc = xfer->fc; 1955 if (xfer->resp != 0) 1956 goto error; 1957 if (xfer->send.buf == NULL) 1958 goto error; 1959 if (xfer->recv.buf == NULL) 1960 goto error; 1961 rfp = (struct fw_pkt *)xfer->recv.buf; 1962 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE) 1963 goto error; 1964 1965 bmr = ntohl(rfp->mode.lres.payload[0]); 1966 if (bmr == 0x3f) 1967 bmr = fc->nodeid; 1968 1969 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 1970 fw_xfer_free(xfer); 1971 fw_bmr(fc); 1972 return; 1973 1974 error: 1975 device_printf(fc->bdev, "bus manager election failed\n"); 1976 fw_xfer_free(xfer); 1977 } 1978 1979 1980 /* 1981 * To candidate Bus Manager election process. 1982 */ 1983 static void 1984 fw_try_bmr(void *arg) 1985 { 1986 struct fw_xfer *xfer; 1987 struct firewire_comm *fc = (struct firewire_comm *)arg; 1988 struct fw_pkt *fp; 1989 int err = 0; 1990 1991 xfer = fw_xfer_alloc_buf(M_FWXFER, 24, 20); 1992 if(xfer == NULL){ 1993 return; 1994 } 1995 xfer->spd = 0; 1996 fc->status = FWBUSMGRELECT; 1997 1998 fp = (struct fw_pkt *)xfer->send.buf; 1999 fp->mode.lreq.dest_hi = 0xffff; 2000 fp->mode.lreq.tlrt = 0; 2001 fp->mode.lreq.tcode = FWTCODE_LREQ; 2002 fp->mode.lreq.pri = 0; 2003 fp->mode.lreq.src = 0; 2004 fp->mode.lreq.len = 8; 2005 fp->mode.lreq.extcode = FW_LREQ_CMPSWAP; 2006 xfer->dst = FWLOCALBUS | fc->irm; 2007 fp->mode.lreq.dst = xfer->dst; 2008 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2009 fp->mode.lreq.payload[0] = htonl(0x3f); 2010 fp->mode.lreq.payload[1] = htonl(fc->nodeid); 2011 xfer->act.hand = fw_try_bmr_callback; 2012 2013 err = fw_asyreq(fc, -1, xfer); 2014 if(err){ 2015 fw_xfer_free( xfer); 2016 return; 2017 } 2018 return; 2019 } 2020 2021 #ifdef FW_VMACCESS 2022 /* 2023 * Software implementation for physical memory block access. 2024 * XXX:Too slow, usef for debug purpose only. 2025 */ 2026 static void 2027 fw_vmaccess(struct fw_xfer *xfer){ 2028 struct fw_pkt *rfp, *sfp = NULL; 2029 u_int32_t *ld = (u_int32_t *)xfer->recv.buf; 2030 2031 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2032 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2033 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2034 if(xfer->resp != 0){ 2035 fw_xfer_free( xfer); 2036 return; 2037 } 2038 if(xfer->recv.buf == NULL){ 2039 fw_xfer_free( xfer); 2040 return; 2041 } 2042 rfp = (struct fw_pkt *)xfer->recv.buf; 2043 switch(rfp->mode.hdr.tcode){ 2044 /* XXX need fix for 64bit arch */ 2045 case FWTCODE_WREQB: 2046 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2047 xfer->send.len = 12; 2048 sfp = (struct fw_pkt *)xfer->send.buf; 2049 bcopy(rfp->mode.wreqb.payload, 2050 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2051 sfp->mode.wres.tcode = FWTCODE_WRES; 2052 sfp->mode.wres.rtcode = 0; 2053 break; 2054 case FWTCODE_WREQQ: 2055 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2056 xfer->send.len = 12; 2057 sfp->mode.wres.tcode = FWTCODE_WRES; 2058 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2059 sfp->mode.wres.rtcode = 0; 2060 break; 2061 case FWTCODE_RREQB: 2062 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2063 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2064 sfp = (struct fw_pkt *)xfer->send.buf; 2065 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2066 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2067 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2068 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2069 sfp->mode.rresb.rtcode = 0; 2070 sfp->mode.rresb.extcode = 0; 2071 break; 2072 case FWTCODE_RREQQ: 2073 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2074 xfer->send.len = 16; 2075 sfp = (struct fw_pkt *)xfer->send.buf; 2076 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2077 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2078 sfp->mode.rresb.rtcode = 0; 2079 break; 2080 default: 2081 fw_xfer_free( xfer); 2082 return; 2083 } 2084 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2085 xfer->dst = ntohs(rfp->mode.hdr.src); 2086 xfer->act.hand = fw_xfer_free; 2087 xfer->retry_req = fw_asybusy; 2088 2089 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2090 sfp->mode.hdr.pri = 0; 2091 2092 fw_asyreq(xfer->fc, -1, xfer); 2093 /**/ 2094 return; 2095 } 2096 #endif 2097 2098 /* 2099 * CRC16 check-sum for IEEE1394 register blocks. 2100 */ 2101 u_int16_t 2102 fw_crc16(u_int32_t *ptr, u_int32_t len){ 2103 u_int32_t i, sum, crc = 0; 2104 int shift; 2105 len = (len + 3) & ~3; 2106 for(i = 0 ; i < len ; i+= 4){ 2107 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2108 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2109 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2110 } 2111 crc &= 0xffff; 2112 } 2113 return((u_int16_t) crc); 2114 } 2115 2116 static int 2117 fw_bmr(struct firewire_comm *fc) 2118 { 2119 struct fw_device fwdev; 2120 union fw_self_id *self_id; 2121 int cmstr; 2122 2123 /* Check to see if the current root node is cycle master capable */ 2124 self_id = &fc->topology_map->self_id[fc->max_node]; 2125 if (fc->max_node > 0) { 2126 /* XXX check cmc bit of businfo block rather than contender */ 2127 if (self_id->p0.link_active && self_id->p0.contender) 2128 cmstr = fc->max_node; 2129 else { 2130 device_printf(fc->bdev, 2131 "root node is not cycle master capable\n"); 2132 /* XXX shall we be the cycle master? */ 2133 cmstr = fc->nodeid; 2134 /* XXX need bus reset */ 2135 } 2136 } else 2137 cmstr = -1; 2138 2139 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2140 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2141 /* We are not the bus manager */ 2142 printf("\n"); 2143 return(0); 2144 } 2145 printf("(me)\n"); 2146 2147 /* Optimize gapcount */ 2148 if(fc->max_hop <= MAX_GAPHOP ) 2149 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2150 /* If we are the cycle master, nothing to do */ 2151 if (cmstr == fc->nodeid || cmstr == -1) 2152 return 0; 2153 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2154 bzero(&fwdev, sizeof(fwdev)); 2155 fwdev.fc = fc; 2156 fwdev.dst = cmstr; 2157 fwdev.speed = 0; 2158 fwdev.maxrec = 8; /* 512 */ 2159 fwdev.status = FWDEVINIT; 2160 /* Set cmstr bit on the cycle master */ 2161 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2162 0xffff, 0xf0000000 | STATE_SET, htonl(1 << 8), 2163 fw_asy_callback_free); 2164 2165 return 0; 2166 } 2167 2168 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); 2169 MODULE_VERSION(firewire, 1); 2170