firewire.c revision 117716
1/* 2 * Copyright (c) 2003 Hidetoshi Shimokawa 3 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the acknowledgement as bellow: 16 * 17 * This product includes software developed by K. Kobayashi and H. Shimokawa 18 * 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 25 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 * 34 * $FreeBSD: head/sys/dev/firewire/firewire.c 117716 2003-07-18 05:28:30Z simokawa $ 35 * 36 */ 37 38#include <sys/param.h> 39#include <sys/systm.h> 40#include <sys/types.h> 41#include <sys/mbuf.h> 42#include <sys/socket.h> 43#include <sys/socketvar.h> 44 45#include <sys/kernel.h> 46#include <sys/malloc.h> 47#include <sys/conf.h> 48#include <sys/sysctl.h> 49 50#if __FreeBSD_version < 500000 51#include <machine/clock.h> /* for DELAY() */ 52#endif 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 63struct crom_src_buf { 64 struct crom_src src; 65 struct crom_chunk root; 66 struct crom_chunk vendor; 67 struct crom_chunk hw; 68}; 69 70int firewire_debug=0, try_bmr=1; 71SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 72 "FireWire driver debug flag"); 73SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 74SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 75 "Try to be a bus manager"); 76 77MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 78MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 79 80#define FW_MAXASYRTY 4 81#define FW_MAXDEVRCNT 4 82 83devclass_t firewire_devclass; 84 85static int firewire_match __P((device_t)); 86static int firewire_attach __P((device_t)); 87static int firewire_detach __P((device_t)); 88static int firewire_resume __P((device_t)); 89#if 0 90static int firewire_shutdown __P((device_t)); 91#endif 92static device_t firewire_add_child __P((device_t, int, const char *, int)); 93static void fw_try_bmr __P((void *)); 94static void fw_try_bmr_callback __P((struct fw_xfer *)); 95static void fw_asystart __P((struct fw_xfer *)); 96static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *)); 97static void fw_bus_probe __P((struct firewire_comm *)); 98static void fw_bus_explore __P((struct firewire_comm *)); 99static void fw_bus_explore_callback __P((struct fw_xfer *)); 100static void fw_attach_dev __P((struct firewire_comm *)); 101#ifdef FW_VMACCESS 102static void fw_vmaccess __P((struct fw_xfer *)); 103#endif 104struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 105 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *)))); 106static int fw_bmr __P((struct firewire_comm *)); 107 108static device_method_t firewire_methods[] = { 109 /* Device interface */ 110 DEVMETHOD(device_probe, firewire_match), 111 DEVMETHOD(device_attach, firewire_attach), 112 DEVMETHOD(device_detach, firewire_detach), 113 DEVMETHOD(device_suspend, bus_generic_suspend), 114 DEVMETHOD(device_resume, firewire_resume), 115 DEVMETHOD(device_shutdown, bus_generic_shutdown), 116 117 /* Bus interface */ 118 DEVMETHOD(bus_add_child, firewire_add_child), 119 DEVMETHOD(bus_print_child, bus_generic_print_child), 120 121 { 0, 0 } 122}; 123char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"}; 124 125/* IEEE-1394a Table C-2 Gap count as a function of hops*/ 126#define MAX_GAPHOP 15 127u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 128 21, 24, 26, 29, 32, 35, 37, 40}; 129 130extern struct cdevsw firewire_cdevsw; 131 132static driver_t firewire_driver = { 133 "firewire", 134 firewire_methods, 135 sizeof(struct firewire_softc), 136}; 137 138/* 139 * Lookup fwdev by node id. 140 */ 141struct fw_device * 142fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 143{ 144 struct fw_device *fwdev; 145 int s; 146 147 s = splfw(); 148 STAILQ_FOREACH(fwdev, &fc->devices, link) 149 if (fwdev->dst == dst) 150 break; 151 splx(s); 152 153 if(fwdev == NULL) return NULL; 154 if(fwdev->status == FWDEVINVAL) return NULL; 155 return fwdev; 156} 157 158/* 159 * Lookup fwdev by EUI64. 160 */ 161struct fw_device * 162fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 163{ 164 struct fw_device *fwdev; 165 int s; 166 167 s = splfw(); 168 STAILQ_FOREACH(fwdev, &fc->devices, link) 169 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 170 break; 171 splx(s); 172 173 if(fwdev == NULL) return NULL; 174 if(fwdev->status == FWDEVINVAL) return NULL; 175 return fwdev; 176} 177 178/* 179 * Async. request procedure for userland application. 180 */ 181int 182fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 183{ 184 int err = 0; 185 struct fw_xferq *xferq; 186 int tl = 0, len; 187 struct fw_pkt *fp; 188 int tcode; 189 struct tcode_info *info; 190 191 if(xfer == NULL) return EINVAL; 192 if(xfer->send.len > MAXREC(fc->maxrec)){ 193 printf("send.len > maxrec\n"); 194 return EINVAL; 195 } 196 if(xfer->act.hand == NULL){ 197 printf("act.hand == NULL\n"); 198 return EINVAL; 199 } 200 fp = (struct fw_pkt *)xfer->send.buf; 201 202 tcode = fp->mode.common.tcode & 0xf; 203 info = &fc->tcode[tcode]; 204 if (info->flag == 0) { 205 printf("invalid tcode=%d\n", tcode); 206 return EINVAL; 207 } 208 if (info->flag & FWTI_REQ) 209 xferq = fc->atq; 210 else 211 xferq = fc->ats; 212 len = info->hdr_len; 213 if (info->flag & FWTI_BLOCK_STR) 214 len += fp->mode.stream.len; 215 else if (info->flag & FWTI_BLOCK_ASY) 216 len += fp->mode.rresb.len; 217 if( len > xfer->send.len ){ 218 printf("len(%d) > send.len(%d) (tcode=%d)\n", 219 len, xfer->send.len, tcode); 220 return EINVAL; 221 } 222 xfer->send.len = len; 223 224 if(xferq->start == NULL){ 225 printf("xferq->start == NULL\n"); 226 return EINVAL; 227 } 228 if(!(xferq->queued < xferq->maxq)){ 229 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 230 xferq->queued); 231 return EINVAL; 232 } 233 234 235 if (info->flag & FWTI_TLABEL) { 236 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 237 return EIO; 238 fp->mode.hdr.tlrt = tl << 2; 239 } 240 241 xfer->tl = tl; 242 xfer->resp = 0; 243 xfer->fc = fc; 244 xfer->q = xferq; 245 xfer->retry_req = fw_asybusy; 246 247 fw_asystart(xfer); 248 return err; 249} 250/* 251 * Wakeup blocked process. 252 */ 253void 254fw_asy_callback(struct fw_xfer *xfer){ 255 wakeup(xfer); 256 return; 257} 258/* 259 * Postpone to later retry. 260 */ 261void fw_asybusy(struct fw_xfer *xfer){ 262 printf("fw_asybusy\n"); 263/* 264 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 265*/ 266 DELAY(20000); 267 fw_asystart(xfer); 268 return; 269} 270 271/* 272 * Async. request with given xfer structure. 273 */ 274static void 275fw_asystart(struct fw_xfer *xfer) 276{ 277 struct firewire_comm *fc = xfer->fc; 278 int s; 279 if(xfer->retry++ >= fc->max_asyretry){ 280 device_printf(fc->bdev, "max_asyretry exceeded\n"); 281 xfer->resp = EBUSY; 282 xfer->state = FWXF_BUSY; 283 xfer->act.hand(xfer); 284 return; 285 } 286#if 0 /* XXX allow bus explore packets only after bus rest */ 287 if (fc->status < FWBUSEXPLORE) { 288 xfer->resp = EAGAIN; 289 xfer->state = FWXF_BUSY; 290 if (xfer->act.hand != NULL) 291 xfer->act.hand(xfer); 292 return; 293 } 294#endif 295 s = splfw(); 296 xfer->state = FWXF_INQ; 297 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 298 xfer->q->queued ++; 299 splx(s); 300 /* XXX just queue for mbuf */ 301 if (xfer->mbuf == NULL) 302 xfer->q->start(fc); 303 return; 304} 305 306static int 307firewire_match( device_t dev ) 308{ 309 device_set_desc(dev, "IEEE1394(FireWire) bus"); 310 return -140; 311} 312 313static void 314firewire_xfer_timeout(struct firewire_comm *fc) 315{ 316 struct fw_xfer *xfer; 317 struct tlabel *tl; 318 struct timeval tv; 319 struct timeval split_timeout; 320 int i, s; 321 322 split_timeout.tv_sec = 6; 323 split_timeout.tv_usec = 0; 324 325 microtime(&tv); 326 timevalsub(&tv, &split_timeout); 327 328 s = splfw(); 329 for (i = 0; i < 0x40; i ++) { 330 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 331 xfer = tl->xfer; 332 if (timevalcmp(&xfer->tv, &tv, >)) 333 /* the rests are newer than this */ 334 break; 335 device_printf(fc->bdev, 336 "split transaction timeout dst=0x%x tl=0x%x state=%d\n", 337 xfer->dst, i, xfer->state); 338 xfer->resp = ETIMEDOUT; 339 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 340 fw_xfer_done(xfer); 341 } 342 } 343 splx(s); 344} 345 346static void 347firewire_watchdog(void *arg) 348{ 349 struct firewire_comm *fc; 350 351 fc = (struct firewire_comm *)arg; 352 firewire_xfer_timeout(fc); 353 fc->timeout(fc); 354 callout_reset(&fc->timeout_callout, hz, 355 (void *)firewire_watchdog, (void *)fc); 356} 357 358/* 359 * The attach routine. 360 */ 361static int 362firewire_attach( device_t dev ) 363{ 364 int i, unitmask, mn; 365 struct firewire_softc *sc = device_get_softc(dev); 366 device_t pa = device_get_parent(dev); 367 struct firewire_comm *fc; 368 dev_t d; 369 370 fc = (struct firewire_comm *)device_get_softc(pa); 371 sc->fc = fc; 372 fc->status = FWBUSNOTREADY; 373 374 unitmask = UNIT2MIN(device_get_unit(dev)); 375 376 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 377 for ( i = 0 ; i < fc->nisodma ; i++ ){ 378 mn = unitmask | i; 379 /* XXX device name should be improved */ 380 d = make_dev(&firewire_cdevsw, unit2minor(mn), 381 UID_ROOT, GID_OPERATOR, 0660, 382 "fw%x", mn); 383#if __FreeBSD_version >= 500000 384 if (i == 0) 385 sc->dev = d; 386 else 387 dev_depends(sc->dev, d); 388#else 389 sc->dev[i] = d; 390#endif 391 } 392 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG), 393 UID_ROOT, GID_OPERATOR, 0660, 394 "fwmem%d", device_get_unit(dev)); 395#if __FreeBSD_version >= 500000 396 dev_depends(sc->dev, d); 397#else 398 sc->dev[i] = d; 399#endif 400 CALLOUT_INIT(&sc->fc->timeout_callout); 401 CALLOUT_INIT(&sc->fc->bmr_callout); 402 CALLOUT_INIT(&sc->fc->retry_probe_callout); 403 CALLOUT_INIT(&sc->fc->busprobe_callout); 404 405 callout_reset(&sc->fc->timeout_callout, hz, 406 (void *)firewire_watchdog, (void *)sc->fc); 407 408 /* Locate our children */ 409 bus_generic_probe(dev); 410 411 /* launch attachement of the added children */ 412 bus_generic_attach(dev); 413 414 /* bus_reset */ 415 fc->ibr(fc); 416 417 return 0; 418} 419 420/* 421 * Attach it as child. 422 */ 423static device_t 424firewire_add_child(device_t dev, int order, const char *name, int unit) 425{ 426 device_t child; 427 struct firewire_softc *sc; 428 429 sc = (struct firewire_softc *)device_get_softc(dev); 430 child = device_add_child(dev, name, unit); 431 if (child) { 432 device_set_ivars(child, sc->fc); 433 device_probe_and_attach(child); 434 } 435 436 return child; 437} 438 439static int 440firewire_resume(device_t dev) 441{ 442 struct firewire_softc *sc; 443 444 sc = (struct firewire_softc *)device_get_softc(dev); 445 sc->fc->status = FWBUSNOTREADY; 446 447 bus_generic_resume(dev); 448 449 return(0); 450} 451 452/* 453 * Dettach it. 454 */ 455static int 456firewire_detach( device_t dev ) 457{ 458 struct firewire_softc *sc; 459 struct csrdir *csrd, *next; 460 struct fw_device *fwdev, *fwdev_next; 461 462 sc = (struct firewire_softc *)device_get_softc(dev); 463 464 bus_generic_detach(dev); 465 466 callout_stop(&sc->fc->timeout_callout); 467 callout_stop(&sc->fc->bmr_callout); 468 callout_stop(&sc->fc->retry_probe_callout); 469 callout_stop(&sc->fc->busprobe_callout); 470 471#if __FreeBSD_version >= 500000 472 destroy_dev(sc->dev); 473#else 474 { 475 int j; 476 for (j = 0 ; j < sc->fc->nisodma + 1; j++) 477 destroy_dev(sc->dev[j]); 478 } 479#endif 480 /* XXX xfree_free and untimeout on all xfers */ 481 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 482 fwdev = fwdev_next) { 483 fwdev_next = STAILQ_NEXT(fwdev, link); 484 free(fwdev, M_FW); 485 } 486 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 487 next = SLIST_NEXT(csrd, link); 488 free(csrd, M_FW); 489 } 490 free(sc->fc->topology_map, M_FW); 491 free(sc->fc->speed_map, M_FW); 492 free(sc->fc->crom_src_buf, M_FW); 493 return(0); 494} 495#if 0 496static int 497firewire_shutdown( device_t dev ) 498{ 499 return 0; 500} 501#endif 502 503 504static void 505fw_xferq_drain(struct fw_xferq *xferq) 506{ 507 struct fw_xfer *xfer; 508 509 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 510 STAILQ_REMOVE_HEAD(&xferq->q, link); 511 xferq->queued --; 512 xfer->resp = EAGAIN; 513 fw_xfer_done(xfer); 514 } 515} 516 517void 518fw_drain_txq(struct firewire_comm *fc) 519{ 520 int i; 521 522 fw_xferq_drain(fc->atq); 523 fw_xferq_drain(fc->ats); 524 for(i = 0; i < fc->nisodma; i++) 525 fw_xferq_drain(fc->it[i]); 526} 527 528static void 529fw_reset_csr(struct firewire_comm *fc) 530{ 531 int i; 532 533 CSRARC(fc, STATE_CLEAR) 534 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 535 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 536 CSRARC(fc, NODE_IDS) = 0x3f; 537 538 CSRARC(fc, TOPO_MAP + 8) = 0; 539 fc->irm = -1; 540 541 fc->max_node = -1; 542 543 for(i = 2; i < 0x100/4 - 2 ; i++){ 544 CSRARC(fc, SPED_MAP + i * 4) = 0; 545 } 546 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 547 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 548 CSRARC(fc, RESET_START) = 0; 549 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 550 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 551 CSRARC(fc, CYCLE_TIME) = 0x0; 552 CSRARC(fc, BUS_TIME) = 0x0; 553 CSRARC(fc, BUS_MGR_ID) = 0x3f; 554 CSRARC(fc, BANDWIDTH_AV) = 4915; 555 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 556 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 557 CSRARC(fc, IP_CHANNELS) = (1 << 31); 558 559 CSRARC(fc, CONF_ROM) = 0x04 << 24; 560 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 561 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 562 1 << 28 | 0xff << 16 | 0x09 << 8; 563 CSRARC(fc, CONF_ROM + 0xc) = 0; 564 565/* DV depend CSRs see blue book */ 566 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 567 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 568 569 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 570 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 571} 572 573static void 574fw_init_crom(struct firewire_comm *fc) 575{ 576 struct crom_src *src; 577 578 fc->crom_src_buf = (struct crom_src_buf *) 579 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 580 if (fc->crom_src_buf == NULL) 581 return; 582 583 src = &fc->crom_src_buf->src; 584 bzero(src, sizeof(struct crom_src)); 585 586 /* BUS info sample */ 587 src->hdr.info_len = 4; 588 589 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 590 591 src->businfo.irmc = 1; 592 src->businfo.cmc = 1; 593 src->businfo.isc = 1; 594 src->businfo.bmc = 1; 595 src->businfo.pmc = 0; 596 src->businfo.cyc_clk_acc = 100; 597 src->businfo.max_rec = fc->maxrec; 598 src->businfo.max_rom = MAXROM_4; 599 src->businfo.generation = 1; 600 src->businfo.link_spd = fc->speed; 601 602 src->businfo.eui64.hi = fc->eui.hi; 603 src->businfo.eui64.lo = fc->eui.lo; 604 605 STAILQ_INIT(&src->chunk_list); 606 607 fc->crom_src = src; 608 fc->crom_root = &fc->crom_src_buf->root; 609} 610 611static void 612fw_reset_crom(struct firewire_comm *fc) 613{ 614 struct crom_src_buf *buf; 615 struct crom_src *src; 616 struct crom_chunk *root; 617 618 if (fc->crom_src_buf == NULL) 619 fw_init_crom(fc); 620 621 buf = fc->crom_src_buf; 622 src = fc->crom_src; 623 root = fc->crom_root; 624 625 STAILQ_INIT(&src->chunk_list); 626 627 bzero(root, sizeof(struct crom_chunk)); 628 crom_add_chunk(src, NULL, root, 0); 629 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 630 /* private company_id */ 631 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 632 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 633 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 634 crom_add_simple_text(src, root, &buf->hw, hostname); 635} 636 637/* 638 * Called after bus reset. 639 */ 640void 641fw_busreset(struct firewire_comm *fc) 642{ 643 struct firewire_dev_comm *fdc; 644 struct crom_src *src; 645 device_t *devlistp; 646 void *newrom; 647 int i, devcnt; 648 649 switch(fc->status){ 650 case FWBUSMGRELECT: 651 callout_stop(&fc->bmr_callout); 652 break; 653 default: 654 break; 655 } 656 fc->status = FWBUSRESET; 657 fw_reset_csr(fc); 658 fw_reset_crom(fc); 659 660 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 661 for( i = 0 ; i < devcnt ; i++) 662 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 663 fdc = device_get_softc(devlistp[i]); 664 if (fdc->post_busreset != NULL) 665 fdc->post_busreset(fdc); 666 } 667 free(devlistp, M_TEMP); 668 } 669 670 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 671 src = &fc->crom_src_buf->src; 672 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 673 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 674 /* bump generation and reload */ 675 src->businfo.generation ++; 676 /* generation must be between 0x2 and 0xF */ 677 if (src->businfo.generation < 2) 678 src->businfo.generation ++; 679 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 680 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 681 } 682 free(newrom, M_FW); 683} 684 685/* Call once after reboot */ 686void fw_init(struct firewire_comm *fc) 687{ 688 int i; 689 struct csrdir *csrd; 690#ifdef FW_VMACCESS 691 struct fw_xfer *xfer; 692 struct fw_bind *fwb; 693#endif 694 695 fc->max_asyretry = FW_MAXASYRTY; 696 697 fc->arq->queued = 0; 698 fc->ars->queued = 0; 699 fc->atq->queued = 0; 700 fc->ats->queued = 0; 701 702 fc->arq->buf = NULL; 703 fc->ars->buf = NULL; 704 fc->atq->buf = NULL; 705 fc->ats->buf = NULL; 706 707 fc->arq->flag = 0; 708 fc->ars->flag = 0; 709 fc->atq->flag = 0; 710 fc->ats->flag = 0; 711 712 STAILQ_INIT(&fc->atq->q); 713 STAILQ_INIT(&fc->ats->q); 714 715 for( i = 0 ; i < fc->nisodma ; i ++ ){ 716 fc->it[i]->queued = 0; 717 fc->ir[i]->queued = 0; 718 719 fc->it[i]->start = NULL; 720 fc->ir[i]->start = NULL; 721 722 fc->it[i]->buf = NULL; 723 fc->ir[i]->buf = NULL; 724 725 fc->it[i]->flag = FWXFERQ_STREAM; 726 fc->ir[i]->flag = FWXFERQ_STREAM; 727 728 STAILQ_INIT(&fc->it[i]->q); 729 STAILQ_INIT(&fc->ir[i]->q); 730 731 STAILQ_INIT(&fc->it[i]->binds); 732 STAILQ_INIT(&fc->ir[i]->binds); 733 } 734 735 fc->arq->maxq = FWMAXQUEUE; 736 fc->ars->maxq = FWMAXQUEUE; 737 fc->atq->maxq = FWMAXQUEUE; 738 fc->ats->maxq = FWMAXQUEUE; 739 740 for( i = 0 ; i < fc->nisodma ; i++){ 741 fc->ir[i]->maxq = FWMAXQUEUE; 742 fc->it[i]->maxq = FWMAXQUEUE; 743 } 744/* Initialize csr registers */ 745 fc->topology_map = (struct fw_topology_map *)malloc( 746 sizeof(struct fw_topology_map), 747 M_FW, M_NOWAIT | M_ZERO); 748 fc->speed_map = (struct fw_speed_map *)malloc( 749 sizeof(struct fw_speed_map), 750 M_FW, M_NOWAIT | M_ZERO); 751 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 752 CSRARC(fc, TOPO_MAP + 4) = 1; 753 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 754 CSRARC(fc, SPED_MAP + 4) = 1; 755 756 STAILQ_INIT(&fc->devices); 757 STAILQ_INIT(&fc->pending); 758 759/* Initialize csr ROM work space */ 760 SLIST_INIT(&fc->ongocsr); 761 SLIST_INIT(&fc->csrfree); 762 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 763 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 764 if(csrd == NULL) break; 765 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 766 } 767 768/* Initialize Async handlers */ 769 STAILQ_INIT(&fc->binds); 770 for( i = 0 ; i < 0x40 ; i++){ 771 STAILQ_INIT(&fc->tlabels[i]); 772 } 773 774/* DV depend CSRs see blue book */ 775#if 0 776 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 777 CSRARC(fc, oPCR) = 0x8000007a; 778 for(i = 4 ; i < 0x7c/4 ; i+=4){ 779 CSRARC(fc, i + oPCR) = 0x8000007a; 780 } 781 782 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 783 CSRARC(fc, iPCR) = 0x803f0000; 784 for(i = 4 ; i < 0x7c/4 ; i+=4){ 785 CSRARC(fc, i + iPCR) = 0x0; 786 } 787#endif 788 789 fc->crom_src_buf = NULL; 790 791#ifdef FW_VMACCESS 792 xfer = fw_xfer_alloc(); 793 if(xfer == NULL) return; 794 795 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 796 if(fwb == NULL){ 797 fw_xfer_free(xfer); 798 } 799 xfer->act.hand = fw_vmaccess; 800 xfer->fc = fc; 801 xfer->sc = NULL; 802 803 fwb->start_hi = 0x2; 804 fwb->start_lo = 0; 805 fwb->addrlen = 0xffffffff; 806 fwb->xfer = xfer; 807 fw_bindadd(fc, fwb); 808#endif 809} 810 811/* 812 * To lookup binded process from IEEE1394 address. 813 */ 814struct fw_bind * 815fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 816{ 817 struct fw_bind *tfw; 818 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 819 tfw = STAILQ_NEXT(tfw, fclist)){ 820 if (tfw->act_type != FWACT_NULL && 821 tfw->start_hi == dest_hi && 822 tfw->start_lo <= dest_lo && 823 (tfw->start_lo + tfw->addrlen) > dest_lo){ 824 return(tfw); 825 } 826 } 827 return(NULL); 828} 829 830/* 831 * To bind IEEE1394 address block to process. 832 */ 833int 834fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 835{ 836 struct fw_bind *tfw, *tfw2 = NULL; 837 int err = 0; 838 tfw = STAILQ_FIRST(&fc->binds); 839 if(tfw == NULL){ 840 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 841 goto out; 842 } 843 if((tfw->start_hi > fwb->start_hi) || 844 (tfw->start_hi == fwb->start_hi && 845 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 846 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 847 goto out; 848 } 849 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 850 if((tfw->start_hi < fwb->start_hi) || 851 (tfw->start_hi == fwb->start_hi && 852 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 853 tfw2 = STAILQ_NEXT(tfw, fclist); 854 if(tfw2 == NULL) 855 break; 856 if((tfw2->start_hi > fwb->start_hi) || 857 (tfw2->start_hi == fwb->start_hi && 858 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 859 break; 860 }else{ 861 err = EBUSY; 862 goto out; 863 } 864 } 865 } 866 if(tfw != NULL){ 867 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 868 }else{ 869 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 870 } 871out: 872 if (!err && fwb->act_type == FWACT_CH) 873 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 874 return err; 875} 876 877/* 878 * To free IEEE1394 address block. 879 */ 880int 881fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 882{ 883 int s; 884 struct fw_xfer *xfer, *next; 885 886 s = splfw(); 887 /* shall we check the existance? */ 888 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 889 /* shall we do this? */ 890 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 891 next = STAILQ_NEXT(xfer, link); 892 fw_xfer_free(xfer); 893 } 894 STAILQ_INIT(&fwb->xferlist); 895 896 splx(s); 897 return 0; 898} 899 900/* 901 * To free transaction label. 902 */ 903static void 904fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 905{ 906 struct tlabel *tl; 907 int s = splfw(); 908 909 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 910 tl = STAILQ_NEXT(tl, link)){ 911 if(tl->xfer == xfer){ 912 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 913 free(tl, M_FW); 914 splx(s); 915 return; 916 } 917 } 918 splx(s); 919 return; 920} 921 922/* 923 * To obtain XFER structure by transaction label. 924 */ 925static struct fw_xfer * 926fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 927{ 928 struct fw_xfer *xfer; 929 struct tlabel *tl; 930 int s = splfw(); 931 932 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 933 tl = STAILQ_NEXT(tl, link)){ 934 if(tl->xfer->dst == node){ 935 xfer = tl->xfer; 936 splx(s); 937 if (firewire_debug > 2) 938 printf("fw_tl2xfer: found tl=%d\n", tlabel); 939 return(xfer); 940 } 941 } 942 if (firewire_debug > 1) 943 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 944 splx(s); 945 return(NULL); 946} 947 948/* 949 * To allocate IEEE1394 XFER structure. 950 */ 951struct fw_xfer * 952fw_xfer_alloc(struct malloc_type *type) 953{ 954 struct fw_xfer *xfer; 955 956 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 957 if (xfer == NULL) 958 return xfer; 959 960 microtime(&xfer->tv); 961 xfer->malloc = type; 962 963 return xfer; 964} 965 966struct fw_xfer * 967fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 968{ 969 struct fw_xfer *xfer; 970 971 xfer = fw_xfer_alloc(type); 972 xfer->send.len = send_len; 973 xfer->recv.len = recv_len; 974 if (xfer == NULL) 975 return(NULL); 976 if (send_len) { 977 xfer->send.buf = malloc(send_len, type, M_NOWAIT | M_ZERO); 978 if (xfer->send.buf == NULL) { 979 fw_xfer_free(xfer); 980 return(NULL); 981 } 982 } 983 if (recv_len) { 984 xfer->recv.buf = malloc(recv_len, type, M_NOWAIT); 985 if (xfer->recv.buf == NULL) { 986 if (xfer->send.buf != NULL) 987 free(xfer->send.buf, type); 988 fw_xfer_free(xfer); 989 return(NULL); 990 } 991 } 992 return(xfer); 993} 994 995/* 996 * IEEE1394 XFER post process. 997 */ 998void 999fw_xfer_done(struct fw_xfer *xfer) 1000{ 1001 if (xfer->act.hand == NULL) { 1002 printf("act.hand == NULL\n"); 1003 return; 1004 } 1005 1006 if (xfer->fc->status != FWBUSRESET) 1007 xfer->act.hand(xfer); 1008 else { 1009 printf("fw_xfer_done: pending\n"); 1010 if (xfer->fc != NULL) 1011 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 1012 else 1013 panic("fw_xfer_done: why xfer->fc is NULL?"); 1014 } 1015} 1016 1017void 1018fw_xfer_unload(struct fw_xfer* xfer) 1019{ 1020 int s; 1021 1022 if(xfer == NULL ) return; 1023 if(xfer->state == FWXF_INQ){ 1024 printf("fw_xfer_free FWXF_INQ\n"); 1025 s = splfw(); 1026 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1027 xfer->q->queued --; 1028 splx(s); 1029 } 1030 if (xfer->fc != NULL) { 1031#if 1 1032 if(xfer->state == FWXF_START) 1033 /* 1034 * This could happen if: 1035 * 1. We call fwohci_arcv() before fwohci_txd(). 1036 * 2. firewire_watch() is called. 1037 */ 1038 printf("fw_xfer_free FWXF_START\n"); 1039#endif 1040 fw_tl_free(xfer->fc, xfer); 1041 } 1042 xfer->state = FWXF_INIT; 1043 xfer->resp = 0; 1044 xfer->retry = 0; 1045} 1046/* 1047 * To free IEEE1394 XFER structure. 1048 */ 1049void 1050fw_xfer_free( struct fw_xfer* xfer) 1051{ 1052 if(xfer == NULL ) return; 1053 fw_xfer_unload(xfer); 1054 if(xfer->send.buf != NULL){ 1055 free(xfer->send.buf, xfer->malloc); 1056 } 1057 if(xfer->recv.buf != NULL){ 1058 free(xfer->recv.buf, xfer->malloc); 1059 } 1060 free(xfer, xfer->malloc); 1061} 1062 1063static void 1064fw_asy_callback_free(struct fw_xfer *xfer) 1065{ 1066#if 0 1067 printf("asyreq done state=%d resp=%d\n", 1068 xfer->state, xfer->resp); 1069#endif 1070 fw_xfer_free(xfer); 1071} 1072 1073/* 1074 * To configure PHY. 1075 */ 1076static void 1077fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1078{ 1079 struct fw_xfer *xfer; 1080 struct fw_pkt *fp; 1081 1082 fc->status = FWBUSPHYCONF; 1083 1084 xfer = fw_xfer_alloc_buf(M_FWXFER, 12, 0); 1085 if (xfer == NULL) 1086 return; 1087 xfer->fc = fc; 1088 xfer->retry_req = fw_asybusy; 1089 xfer->act.hand = fw_asy_callback_free; 1090 1091 fp = (struct fw_pkt *)xfer->send.buf; 1092 fp->mode.ld[1] = 0; 1093 if (root_node >= 0) 1094 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1095 if (gap_count >= 0) 1096 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1097 fp->mode.ld[2] = ~fp->mode.ld[1]; 1098/* XXX Dangerous, how to pass PHY packet to device driver */ 1099 fp->mode.common.tcode |= FWTCODE_PHY; 1100 1101 if (firewire_debug) 1102 printf("send phy_config root_node=%d gap_count=%d\n", 1103 root_node, gap_count); 1104 fw_asyreq(fc, -1, xfer); 1105} 1106 1107#if 0 1108/* 1109 * Dump self ID. 1110 */ 1111static void 1112fw_print_sid(u_int32_t sid) 1113{ 1114 union fw_self_id *s; 1115 s = (union fw_self_id *) &sid; 1116 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1117 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1118 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1119 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1120 s->p0.power_class, s->p0.port0, s->p0.port1, 1121 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1122} 1123#endif 1124 1125/* 1126 * To receive self ID. 1127 */ 1128void fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) 1129{ 1130 u_int32_t *p; 1131 union fw_self_id *self_id; 1132 u_int i, j, node, c_port = 0, i_branch = 0; 1133 1134 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1135 fc->status = FWBUSINIT; 1136 fc->max_node = fc->nodeid & 0x3f; 1137 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1138 fc->status = FWBUSCYMELECT; 1139 fc->topology_map->crc_len = 2; 1140 fc->topology_map->generation ++; 1141 fc->topology_map->self_id_count = 0; 1142 fc->topology_map->node_count = 0; 1143 fc->speed_map->generation ++; 1144 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1145 self_id = &fc->topology_map->self_id[0]; 1146 for(i = 0; i < fc->sid_cnt; i ++){ 1147 if (sid[1] != ~sid[0]) { 1148 printf("fw_sidrcv: invalid self-id packet\n"); 1149 sid += 2; 1150 continue; 1151 } 1152 *self_id = *((union fw_self_id *)sid); 1153 fc->topology_map->crc_len++; 1154 if(self_id->p0.sequel == 0){ 1155 fc->topology_map->node_count ++; 1156 c_port = 0; 1157#if 0 1158 fw_print_sid(sid[0]); 1159#endif 1160 node = self_id->p0.phy_id; 1161 if(fc->max_node < node){ 1162 fc->max_node = self_id->p0.phy_id; 1163 } 1164 /* XXX I'm not sure this is the right speed_map */ 1165 fc->speed_map->speed[node][node] 1166 = self_id->p0.phy_speed; 1167 for (j = 0; j < node; j ++) { 1168 fc->speed_map->speed[j][node] 1169 = fc->speed_map->speed[node][j] 1170 = min(fc->speed_map->speed[j][j], 1171 self_id->p0.phy_speed); 1172 } 1173 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1174 (self_id->p0.link_active && self_id->p0.contender)) { 1175 fc->irm = self_id->p0.phy_id; 1176 } 1177 if(self_id->p0.port0 >= 0x2){ 1178 c_port++; 1179 } 1180 if(self_id->p0.port1 >= 0x2){ 1181 c_port++; 1182 } 1183 if(self_id->p0.port2 >= 0x2){ 1184 c_port++; 1185 } 1186 } 1187 if(c_port > 2){ 1188 i_branch += (c_port - 2); 1189 } 1190 sid += 2; 1191 self_id++; 1192 fc->topology_map->self_id_count ++; 1193 } 1194 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1195 /* CRC */ 1196 fc->topology_map->crc = fw_crc16( 1197 (u_int32_t *)&fc->topology_map->generation, 1198 fc->topology_map->crc_len * 4); 1199 fc->speed_map->crc = fw_crc16( 1200 (u_int32_t *)&fc->speed_map->generation, 1201 fc->speed_map->crc_len * 4); 1202 /* byteswap and copy to CSR */ 1203 p = (u_int32_t *)fc->topology_map; 1204 for (i = 0; i <= fc->topology_map->crc_len; i++) 1205 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1206 p = (u_int32_t *)fc->speed_map; 1207 CSRARC(fc, SPED_MAP) = htonl(*p++); 1208 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1209 /* don't byte-swap u_int8_t array */ 1210 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1211 1212 fc->max_hop = fc->max_node - i_branch; 1213 printf(", maxhop <= %d", fc->max_hop); 1214 1215 if(fc->irm == -1 ){ 1216 printf(", Not found IRM capable node"); 1217 }else{ 1218 printf(", cable IRM = %d", fc->irm); 1219 if (fc->irm == fc->nodeid) 1220 printf(" (me)"); 1221 } 1222 printf("\n"); 1223 1224 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1225 if (fc->irm == fc->nodeid) { 1226 fc->status = FWBUSMGRDONE; 1227 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1228 fw_bmr(fc); 1229 } else { 1230 fc->status = FWBUSMGRELECT; 1231 callout_reset(&fc->bmr_callout, hz/8, 1232 (void *)fw_try_bmr, (void *)fc); 1233 } 1234 } else 1235 fc->status = FWBUSMGRDONE; 1236 1237 callout_reset(&fc->busprobe_callout, hz/4, 1238 (void *)fw_bus_probe, (void *)fc); 1239} 1240 1241/* 1242 * To probe devices on the IEEE1394 bus. 1243 */ 1244static void 1245fw_bus_probe(struct firewire_comm *fc) 1246{ 1247 int s; 1248 struct fw_device *fwdev, *next; 1249 1250 s = splfw(); 1251 fc->status = FWBUSEXPLORE; 1252 fc->retry_count = 0; 1253 1254/* 1255 * Invalidate all devices, just after bus reset. Devices 1256 * to be removed has not been seen longer time. 1257 */ 1258 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1259 next = STAILQ_NEXT(fwdev, link); 1260 if (fwdev->status != FWDEVINVAL) { 1261 fwdev->status = FWDEVINVAL; 1262 fwdev->rcnt = 0; 1263 } else if(fwdev->rcnt < FW_MAXDEVRCNT) { 1264 fwdev->rcnt ++; 1265 } else { 1266 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1267 free(fwdev, M_FW); 1268 } 1269 } 1270 fc->ongonode = 0; 1271 fc->ongoaddr = CSRROMOFF; 1272 fc->ongodev = NULL; 1273 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1274 fw_bus_explore(fc); 1275 splx(s); 1276} 1277 1278/* 1279 * To collect device informations on the IEEE1394 bus. 1280 */ 1281static void 1282fw_bus_explore(struct firewire_comm *fc ) 1283{ 1284 int err = 0; 1285 struct fw_device *fwdev, *pfwdev, *tfwdev; 1286 u_int32_t addr; 1287 struct fw_xfer *xfer; 1288 struct fw_pkt *fp; 1289 1290 if(fc->status != FWBUSEXPLORE) 1291 return; 1292 1293loop: 1294 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1295 1296 if(fc->ongonode > fc->max_node) goto done; 1297 if(fc->ongonode >= 0x3f) goto done; 1298 1299 /* check link */ 1300 /* XXX we need to check phy_id first */ 1301 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1302 if (firewire_debug) 1303 printf("node%d: link down\n", fc->ongonode); 1304 fc->ongonode++; 1305 goto loop; 1306 } 1307 1308 if(fc->ongoaddr <= CSRROMOFF && 1309 fc->ongoeui.hi == 0xffffffff && 1310 fc->ongoeui.lo == 0xffffffff ){ 1311 fc->ongoaddr = CSRROMOFF; 1312 addr = 0xf0000000 | fc->ongoaddr; 1313 }else if(fc->ongoeui.hi == 0xffffffff ){ 1314 fc->ongoaddr = CSRROMOFF + 0xc; 1315 addr = 0xf0000000 | fc->ongoaddr; 1316 }else if(fc->ongoeui.lo == 0xffffffff ){ 1317 fc->ongoaddr = CSRROMOFF + 0x10; 1318 addr = 0xf0000000 | fc->ongoaddr; 1319 }else if(fc->ongodev == NULL){ 1320 STAILQ_FOREACH(fwdev, &fc->devices, link) 1321 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1322 break; 1323 if(fwdev != NULL){ 1324 fwdev->dst = fc->ongonode; 1325 fwdev->status = FWDEVINIT; 1326 fc->ongodev = fwdev; 1327 fc->ongoaddr = CSRROMOFF; 1328 addr = 0xf0000000 | fc->ongoaddr; 1329 goto dorequest; 1330 } 1331 fwdev = malloc(sizeof(struct fw_device), M_FW, 1332 M_NOWAIT | M_ZERO); 1333 if(fwdev == NULL) 1334 return; 1335 fwdev->fc = fc; 1336 fwdev->rommax = 0; 1337 fwdev->dst = fc->ongonode; 1338 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1339 fwdev->status = FWDEVINIT; 1340 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1341 1342 pfwdev = NULL; 1343 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1344 if (tfwdev->eui.hi > fwdev->eui.hi || 1345 (tfwdev->eui.hi == fwdev->eui.hi && 1346 tfwdev->eui.lo > fwdev->eui.lo)) 1347 break; 1348 pfwdev = tfwdev; 1349 } 1350 if (pfwdev == NULL) 1351 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1352 else 1353 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1354 1355 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1356 linkspeed[fwdev->speed], 1357 fc->ongoeui.hi, fc->ongoeui.lo); 1358 1359 fc->ongodev = fwdev; 1360 fc->ongoaddr = CSRROMOFF; 1361 addr = 0xf0000000 | fc->ongoaddr; 1362 }else{ 1363 addr = 0xf0000000 | fc->ongoaddr; 1364 } 1365dorequest: 1366#if 0 1367 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1368 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1369 fw_bus_explore_callback); 1370 if(xfer == NULL) goto done; 1371#else 1372 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 16); 1373 if(xfer == NULL){ 1374 goto done; 1375 } 1376 xfer->spd = 0; 1377 fp = (struct fw_pkt *)xfer->send.buf; 1378 fp->mode.rreqq.dest_hi = 0xffff; 1379 fp->mode.rreqq.tlrt = 0; 1380 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1381 fp->mode.rreqq.pri = 0; 1382 fp->mode.rreqq.src = 0; 1383 xfer->dst = FWLOCALBUS | fc->ongonode; 1384 fp->mode.rreqq.dst = xfer->dst; 1385 fp->mode.rreqq.dest_lo = addr; 1386 xfer->act.hand = fw_bus_explore_callback; 1387 1388 if (firewire_debug) 1389 printf("node%d: explore addr=0x%x\n", 1390 fc->ongonode, fc->ongoaddr); 1391 err = fw_asyreq(fc, -1, xfer); 1392 if(err){ 1393 fw_xfer_free( xfer); 1394 return; 1395 } 1396#endif 1397 return; 1398done: 1399 /* fw_attach_devs */ 1400 fc->status = FWBUSEXPDONE; 1401 if (firewire_debug) 1402 printf("bus_explore done\n"); 1403 fw_attach_dev(fc); 1404 return; 1405 1406} 1407 1408/* Portable Async. request read quad */ 1409struct fw_xfer * 1410asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1411 u_int32_t addr_hi, u_int32_t addr_lo, 1412 void (*hand) __P((struct fw_xfer*))) 1413{ 1414 struct fw_xfer *xfer; 1415 struct fw_pkt *fp; 1416 int err; 1417 1418 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 16); 1419 if (xfer == NULL) 1420 return NULL; 1421 1422 xfer->spd = spd; /* XXX:min(spd, fc->spd) */ 1423 fp = (struct fw_pkt *)xfer->send.buf; 1424 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1425 if(tl & FWP_TL_VALID){ 1426 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1427 }else{ 1428 fp->mode.rreqq.tlrt = 0; 1429 } 1430 fp->mode.rreqq.tlrt |= rt & 0x3; 1431 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1432 fp->mode.rreqq.pri = 0; 1433 fp->mode.rreqq.src = 0; 1434 xfer->dst = addr_hi >> 16; 1435 fp->mode.rreqq.dst = xfer->dst; 1436 fp->mode.rreqq.dest_lo = addr_lo; 1437 xfer->act.hand = hand; 1438 1439 err = fw_asyreq(fc, -1, xfer); 1440 if(err){ 1441 fw_xfer_free( xfer); 1442 return NULL; 1443 } 1444 return xfer; 1445} 1446 1447/* 1448 * Callback for the IEEE1394 bus information collection. 1449 */ 1450static void 1451fw_bus_explore_callback(struct fw_xfer *xfer) 1452{ 1453 struct firewire_comm *fc; 1454 struct fw_pkt *sfp,*rfp; 1455 struct csrhdr *chdr; 1456 struct csrdir *csrd; 1457 struct csrreg *csrreg; 1458 u_int32_t offset; 1459 1460 1461 if(xfer == NULL) { 1462 printf("xfer == NULL\n"); 1463 return; 1464 } 1465 fc = xfer->fc; 1466 1467 if (firewire_debug) 1468 printf("node%d: callback addr=0x%x\n", 1469 fc->ongonode, fc->ongoaddr); 1470 1471 if(xfer->resp != 0){ 1472 printf("node%d: resp=%d addr=0x%x\n", 1473 fc->ongonode, xfer->resp, fc->ongoaddr); 1474 goto errnode; 1475 } 1476 1477 if(xfer->send.buf == NULL){ 1478 printf("node%d: send.buf=NULL addr=0x%x\n", 1479 fc->ongonode, fc->ongoaddr); 1480 goto errnode; 1481 } 1482 sfp = (struct fw_pkt *)xfer->send.buf; 1483 1484 if(xfer->recv.buf == NULL){ 1485 printf("node%d: recv.buf=NULL addr=0x%x\n", 1486 fc->ongonode, fc->ongoaddr); 1487 goto errnode; 1488 } 1489 rfp = (struct fw_pkt *)xfer->recv.buf; 1490#if 0 1491 { 1492 u_int32_t *qld; 1493 int i; 1494 qld = (u_int32_t *)xfer->recv.buf; 1495 printf("len:%d\n", xfer->recv.len); 1496 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1497 printf("0x%08x ", rfp->mode.ld[i/4]); 1498 if((i % 16) == 15) printf("\n"); 1499 } 1500 if((i % 16) != 15) printf("\n"); 1501 } 1502#endif 1503 if(fc->ongodev == NULL){ 1504 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1505 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1506 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1507/* If CSR is minimal confinguration, more investgation is not needed. */ 1508 if(chdr->info_len == 1){ 1509 if (firewire_debug) 1510 printf("node%d: minimal config\n", 1511 fc->ongonode); 1512 goto nextnode; 1513 }else{ 1514 fc->ongoaddr = CSRROMOFF + 0xc; 1515 } 1516 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1517 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1518 fc->ongoaddr = CSRROMOFF + 0x10; 1519 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1520 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1521 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1522 if (firewire_debug) 1523 printf("node%d: eui64 is zero.\n", 1524 fc->ongonode); 1525 goto nextnode; 1526 } 1527 fc->ongoaddr = CSRROMOFF; 1528 } 1529 }else{ 1530 if (fc->ongoaddr == CSRROMOFF && 1531 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1532 fc->ongodev->status = FWDEVATTACHED; 1533 goto nextnode; 1534 } 1535 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1536 if(fc->ongoaddr > fc->ongodev->rommax){ 1537 fc->ongodev->rommax = fc->ongoaddr; 1538 } 1539 csrd = SLIST_FIRST(&fc->ongocsr); 1540 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1541 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1542 offset = CSRROMOFF; 1543 }else{ 1544 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1545 offset = csrd->off; 1546 } 1547 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1548 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1549 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1550 csrd = SLIST_FIRST(&fc->csrfree); 1551 if(csrd == NULL){ 1552 goto nextnode; 1553 }else{ 1554 csrd->ongoaddr = fc->ongoaddr; 1555 fc->ongoaddr += csrreg->val * 4; 1556 csrd->off = fc->ongoaddr; 1557 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1558 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1559 goto nextaddr; 1560 } 1561 } 1562 } 1563 fc->ongoaddr += 4; 1564 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1565 (fc->ongodev->rommax < 0x414)){ 1566 if(fc->ongodev->rommax <= 0x414){ 1567 csrd = SLIST_FIRST(&fc->csrfree); 1568 if(csrd == NULL) goto nextnode; 1569 csrd->off = fc->ongoaddr; 1570 csrd->ongoaddr = fc->ongoaddr; 1571 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1572 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1573 } 1574 goto nextaddr; 1575 } 1576 1577 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1578 if(csrd == NULL){ 1579 goto nextnode; 1580 }; 1581 fc->ongoaddr = csrd->ongoaddr + 4; 1582 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1583 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1584 csrd = SLIST_FIRST(&fc->ongocsr); 1585 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1586 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1587 offset = CSRROMOFF; 1588 }else{ 1589 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1590 offset = csrd->off; 1591 } 1592 } 1593 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1594 goto nextnode; 1595 } 1596 } 1597nextaddr: 1598 fw_xfer_free( xfer); 1599 fw_bus_explore(fc); 1600 return; 1601errnode: 1602 fc->retry_count++; 1603 if (fc->ongodev != NULL) 1604 fc->ongodev->status = FWDEVINVAL; 1605nextnode: 1606 fw_xfer_free( xfer); 1607 fc->ongonode++; 1608/* housekeeping work space */ 1609 fc->ongoaddr = CSRROMOFF; 1610 fc->ongodev = NULL; 1611 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1612 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1613 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1614 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1615 } 1616 fw_bus_explore(fc); 1617 return; 1618} 1619 1620/* 1621 * To attach sub-devices layer onto IEEE1394 bus. 1622 */ 1623static void 1624fw_attach_dev(struct firewire_comm *fc) 1625{ 1626 struct fw_device *fwdev; 1627 struct fw_xfer *xfer; 1628 int i, err; 1629 device_t *devlistp; 1630 int devcnt; 1631 struct firewire_dev_comm *fdc; 1632 1633 STAILQ_FOREACH(fwdev, &fc->devices, link) 1634 if (fwdev->status == FWDEVINIT) 1635 fwdev->status = FWDEVATTACHED; 1636 1637 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1638 if( err != 0 ) 1639 return; 1640 for( i = 0 ; i < devcnt ; i++){ 1641 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1642 fdc = device_get_softc(devlistp[i]); 1643 if (fdc->post_explore != NULL) 1644 fdc->post_explore(fdc); 1645 } 1646 } 1647 free(devlistp, M_TEMP); 1648 1649 /* call pending handlers */ 1650 i = 0; 1651 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1652 STAILQ_REMOVE_HEAD(&fc->pending, link); 1653 i++; 1654 if (xfer->act.hand) 1655 xfer->act.hand(xfer); 1656 } 1657 if (i > 0) 1658 printf("fw_attach_dev: %d pending handlers called\n", i); 1659 if (fc->retry_count > 0) { 1660 printf("probe failed for %d node\n", fc->retry_count); 1661#if 0 1662 callout_reset(&fc->retry_probe_callout, hz*2, 1663 (void *)fc->ibr, (void *)fc); 1664#endif 1665 } 1666 return; 1667} 1668 1669/* 1670 * To allocate uniq transaction label. 1671 */ 1672static int 1673fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1674{ 1675 u_int i; 1676 struct tlabel *tl, *tmptl; 1677 int s; 1678 static u_int32_t label = 0; 1679 1680 s = splfw(); 1681 for( i = 0 ; i < 0x40 ; i ++){ 1682 label = (label + 1) & 0x3f; 1683 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1684 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1685 if(tmptl->xfer->dst == xfer->dst) break; 1686 } 1687 if(tmptl == NULL) { 1688 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1689 if (tl == NULL) { 1690 splx(s); 1691 return (-1); 1692 } 1693 tl->xfer = xfer; 1694 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1695 splx(s); 1696 if (firewire_debug > 1) 1697 printf("fw_get_tlabel: dst=%d tl=%d\n", 1698 xfer->dst, label); 1699 return(label); 1700 } 1701 } 1702 splx(s); 1703 1704 printf("fw_get_tlabel: no free tlabel\n"); 1705 return(-1); 1706} 1707 1708static void 1709fw_rcv_copy(struct fw_xfer *xfer, struct iovec *vec, int nvec) 1710{ 1711 char *p; 1712 int res, i, len; 1713 1714 p = xfer->recv.buf; 1715 res = xfer->recv.len; 1716 for (i = 0; i < nvec; i++, vec++) { 1717 len = vec->iov_len; 1718 if (res < len) { 1719 printf("rcv buffer(%d) is %d bytes short.\n", 1720 xfer->recv.len, len - res); 1721 len = res; 1722 } 1723 bcopy(vec->iov_base, p, len); 1724 p += len; 1725 res -= len; 1726 if (res <= 0) 1727 break; 1728 } 1729 xfer->recv.len -= res; 1730} 1731 1732/* 1733 * Generic packet receving process. 1734 */ 1735void 1736fw_rcv(struct firewire_comm *fc, struct iovec *vec, int nvec, u_int sub, u_int spd) 1737{ 1738 struct fw_pkt *fp, *resfp; 1739 struct fw_xfer *xfer; 1740 struct fw_bind *bind; 1741 struct firewire_softc *sc; 1742 int tcode, s; 1743 int i, len, oldstate; 1744#if 0 1745 { 1746 u_int32_t *qld; 1747 int i; 1748 qld = (u_int32_t *)buf; 1749 printf("spd %d len:%d\n", spd, len); 1750 for( i = 0 ; i <= len && i < 32; i+= 4){ 1751 printf("0x%08x ", ntohl(qld[i/4])); 1752 if((i % 16) == 15) printf("\n"); 1753 } 1754 if((i % 16) != 15) printf("\n"); 1755 } 1756#endif 1757 fp = (struct fw_pkt *)vec[0].iov_base; 1758 tcode = fp->mode.common.tcode; 1759#if 0 /* XXX this check is not valid for RRESQ and WREQQ */ 1760 if (vec[0].iov_len < fc->tcode[tcode].hdr_len) { 1761#if __FreeBSD_version >= 500000 1762 printf("fw_rcv: iov_len(%zu) is less than" 1763#else 1764 printf("fw_rcv: iov_len(%u) is less than" 1765#endif 1766 " hdr_len(%d:tcode=%d)\n", vec[0].iov_len, 1767 fc->tcode[tcode].hdr_len, tcode); 1768 } 1769#endif 1770 switch (tcode) { 1771 case FWTCODE_WRES: 1772 case FWTCODE_RRESQ: 1773 case FWTCODE_RRESB: 1774 case FWTCODE_LRES: 1775 xfer = fw_tl2xfer(fc, fp->mode.hdr.src, 1776 fp->mode.hdr.tlrt >> 2); 1777 if(xfer == NULL) { 1778 printf("fw_rcv: unknown response " 1779 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n", 1780 tcode, 1781 fp->mode.hdr.src, 1782 fp->mode.hdr.tlrt >> 2, 1783 fp->mode.hdr.tlrt & 3, 1784 fp->mode.rresq.data); 1785#if 1 1786 printf("try ad-hoc work around!!\n"); 1787 xfer = fw_tl2xfer(fc, fp->mode.hdr.src, 1788 (fp->mode.hdr.tlrt >> 2)^3); 1789 if (xfer == NULL) { 1790 printf("no use...\n"); 1791 goto err; 1792 } 1793#else 1794 goto err; 1795#endif 1796 } 1797 fw_rcv_copy(xfer, vec, nvec); 1798 xfer->resp = 0; 1799 /* make sure the packet is drained in AT queue */ 1800 oldstate = xfer->state; 1801 xfer->state = FWXF_RCVD; 1802 switch (oldstate) { 1803 case FWXF_SENT: 1804 fw_xfer_done(xfer); 1805 break; 1806 case FWXF_START: 1807 if (firewire_debug) 1808 printf("not sent yet tl=%x\n", xfer->tl); 1809 break; 1810 default: 1811 printf("unexpected state %d\n", xfer->state); 1812 } 1813 return; 1814 case FWTCODE_WREQQ: 1815 case FWTCODE_WREQB: 1816 case FWTCODE_RREQQ: 1817 case FWTCODE_RREQB: 1818 case FWTCODE_LREQ: 1819 bind = fw_bindlookup(fc, fp->mode.rreqq.dest_hi, 1820 fp->mode.rreqq.dest_lo); 1821 if(bind == NULL){ 1822#if __FreeBSD_version >= 500000 1823 printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%x\n", 1824#else 1825 printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%lx\n", 1826#endif 1827 fp->mode.wreqq.dest_hi, 1828 fp->mode.wreqq.dest_lo, 1829 tcode, 1830 fp->mode.hdr.src, 1831 ntohl(fp->mode.wreqq.data)); 1832 if (fc->status == FWBUSRESET) { 1833 printf("fw_rcv: cannot respond(bus reset)!\n"); 1834 goto err; 1835 } 1836 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 0); 1837 if(xfer == NULL){ 1838 return; 1839 } 1840 xfer->spd = spd; 1841 resfp = (struct fw_pkt *)xfer->send.buf; 1842 switch (tcode) { 1843 case FWTCODE_WREQQ: 1844 case FWTCODE_WREQB: 1845 resfp->mode.hdr.tcode = FWTCODE_WRES; 1846 xfer->send.len = 12; 1847 break; 1848 case FWTCODE_RREQQ: 1849 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1850 xfer->send.len = 16; 1851 break; 1852 case FWTCODE_RREQB: 1853 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1854 xfer->send.len = 16; 1855 break; 1856 case FWTCODE_LREQ: 1857 resfp->mode.hdr.tcode = FWTCODE_LRES; 1858 xfer->send.len = 16; 1859 break; 1860 } 1861 resfp->mode.hdr.dst = fp->mode.hdr.src; 1862 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1863 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1864 resfp->mode.rresb.rtcode = 7; 1865 resfp->mode.rresb.extcode = 0; 1866 resfp->mode.rresb.len = 0; 1867/* 1868 xfer->act.hand = fw_asy_callback; 1869*/ 1870 xfer->act.hand = fw_xfer_free; 1871 if(fw_asyreq(fc, -1, xfer)){ 1872 fw_xfer_free( xfer); 1873 return; 1874 } 1875 goto err; 1876 } 1877 len = 0; 1878 for (i = 0; i < nvec; i ++) 1879 len += vec[i].iov_len; 1880 switch(bind->act_type){ 1881 case FWACT_XFER: 1882 /* splfw()?? */ 1883 xfer = STAILQ_FIRST(&bind->xferlist); 1884 if (xfer == NULL) { 1885 printf("Discard a packet for this bind.\n"); 1886 goto err; 1887 } 1888 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1889 fw_rcv_copy(xfer, vec, nvec); 1890 xfer->spd = spd; 1891 if (fc->status != FWBUSRESET) 1892 xfer->act.hand(xfer); 1893 else 1894 STAILQ_INSERT_TAIL(&fc->pending, xfer, link); 1895 return; 1896 break; 1897 case FWACT_CH: 1898 if(fc->ir[bind->sub]->queued >= 1899 fc->ir[bind->sub]->maxq){ 1900 device_printf(fc->bdev, 1901 "Discard a packet %x %d\n", 1902 bind->sub, 1903 fc->ir[bind->sub]->queued); 1904 goto err; 1905 } 1906 xfer = STAILQ_FIRST(&bind->xferlist); 1907 if (xfer == NULL) { 1908 printf("Discard packet for this bind\n"); 1909 goto err; 1910 } 1911 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1912 fw_rcv_copy(xfer, vec, nvec); 1913 xfer->spd = spd; 1914 s = splfw(); 1915 fc->ir[bind->sub]->queued++; 1916 STAILQ_INSERT_TAIL(&fc->ir[bind->sub]->q, xfer, link); 1917 splx(s); 1918 1919 wakeup((caddr_t)fc->ir[bind->sub]); 1920 1921 return; 1922 break; 1923 default: 1924 goto err; 1925 break; 1926 } 1927 break; 1928 case FWTCODE_STREAM: 1929 { 1930 struct fw_xferq *xferq; 1931 1932 xferq = fc->ir[sub]; 1933#if 0 1934 printf("stream rcv dma %d len %d off %d spd %d\n", 1935 sub, len, off, spd); 1936#endif 1937 if(xferq->queued >= xferq->maxq) { 1938 printf("receive queue is full\n"); 1939 goto err; 1940 } 1941 /* XXX get xfer from xfer queue, we don't need copy for 1942 per packet mode */ 1943 xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1944 vec[0].iov_len); 1945 if(xfer == NULL) goto err; 1946 fw_rcv_copy(xfer, vec, nvec); 1947 xfer->spd = spd; 1948 s = splfw(); 1949 xferq->queued++; 1950 STAILQ_INSERT_TAIL(&xferq->q, xfer, link); 1951 splx(s); 1952 sc = device_get_softc(fc->bdev); 1953#if __FreeBSD_version >= 500000 1954 if (SEL_WAITING(&xferq->rsel)) 1955#else 1956 if (&xferq->rsel.si_pid != 0) 1957#endif 1958 selwakeup(&xferq->rsel); 1959 if (xferq->flag & FWXFERQ_WAKEUP) { 1960 xferq->flag &= ~FWXFERQ_WAKEUP; 1961 wakeup((caddr_t)xferq); 1962 } 1963 if (xferq->flag & FWXFERQ_HANDLER) { 1964 xferq->hand(xferq); 1965 } 1966 return; 1967 break; 1968 } 1969 default: 1970 printf("fw_rcv: unknow tcode %d\n", tcode); 1971 break; 1972 } 1973err: 1974 return; 1975} 1976 1977/* 1978 * Post process for Bus Manager election process. 1979 */ 1980static void 1981fw_try_bmr_callback(struct fw_xfer *xfer) 1982{ 1983 struct fw_pkt *rfp; 1984 struct firewire_comm *fc; 1985 int bmr; 1986 1987 if (xfer == NULL) 1988 return; 1989 fc = xfer->fc; 1990 if (xfer->resp != 0) 1991 goto error; 1992 if (xfer->send.buf == NULL) 1993 goto error; 1994 if (xfer->recv.buf == NULL) 1995 goto error; 1996 rfp = (struct fw_pkt *)xfer->recv.buf; 1997 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE) 1998 goto error; 1999 2000 bmr = ntohl(rfp->mode.lres.payload[0]); 2001 if (bmr == 0x3f) 2002 bmr = fc->nodeid; 2003 2004 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2005 fw_xfer_free(xfer); 2006 fw_bmr(fc); 2007 return; 2008 2009error: 2010 device_printf(fc->bdev, "bus manager election failed\n"); 2011 fw_xfer_free(xfer); 2012} 2013 2014 2015/* 2016 * To candidate Bus Manager election process. 2017 */ 2018static void 2019fw_try_bmr(void *arg) 2020{ 2021 struct fw_xfer *xfer; 2022 struct firewire_comm *fc = (struct firewire_comm *)arg; 2023 struct fw_pkt *fp; 2024 int err = 0; 2025 2026 xfer = fw_xfer_alloc_buf(M_FWXFER, 24, 20); 2027 if(xfer == NULL){ 2028 return; 2029 } 2030 xfer->spd = 0; 2031 fc->status = FWBUSMGRELECT; 2032 2033 fp = (struct fw_pkt *)xfer->send.buf; 2034 fp->mode.lreq.dest_hi = 0xffff; 2035 fp->mode.lreq.tlrt = 0; 2036 fp->mode.lreq.tcode = FWTCODE_LREQ; 2037 fp->mode.lreq.pri = 0; 2038 fp->mode.lreq.src = 0; 2039 fp->mode.lreq.len = 8; 2040 fp->mode.lreq.extcode = FW_LREQ_CMPSWAP; 2041 xfer->dst = FWLOCALBUS | fc->irm; 2042 fp->mode.lreq.dst = xfer->dst; 2043 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2044 fp->mode.lreq.payload[0] = htonl(0x3f); 2045 fp->mode.lreq.payload[1] = htonl(fc->nodeid); 2046 xfer->act.hand = fw_try_bmr_callback; 2047 2048 err = fw_asyreq(fc, -1, xfer); 2049 if(err){ 2050 fw_xfer_free( xfer); 2051 return; 2052 } 2053 return; 2054} 2055 2056#ifdef FW_VMACCESS 2057/* 2058 * Software implementation for physical memory block access. 2059 * XXX:Too slow, usef for debug purpose only. 2060 */ 2061static void 2062fw_vmaccess(struct fw_xfer *xfer){ 2063 struct fw_pkt *rfp, *sfp = NULL; 2064 u_int32_t *ld = (u_int32_t *)xfer->recv.buf; 2065 2066 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2067 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2068 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2069 if(xfer->resp != 0){ 2070 fw_xfer_free( xfer); 2071 return; 2072 } 2073 if(xfer->recv.buf == NULL){ 2074 fw_xfer_free( xfer); 2075 return; 2076 } 2077 rfp = (struct fw_pkt *)xfer->recv.buf; 2078 switch(rfp->mode.hdr.tcode){ 2079 /* XXX need fix for 64bit arch */ 2080 case FWTCODE_WREQB: 2081 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2082 xfer->send.len = 12; 2083 sfp = (struct fw_pkt *)xfer->send.buf; 2084 bcopy(rfp->mode.wreqb.payload, 2085 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2086 sfp->mode.wres.tcode = FWTCODE_WRES; 2087 sfp->mode.wres.rtcode = 0; 2088 break; 2089 case FWTCODE_WREQQ: 2090 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2091 xfer->send.len = 12; 2092 sfp->mode.wres.tcode = FWTCODE_WRES; 2093 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2094 sfp->mode.wres.rtcode = 0; 2095 break; 2096 case FWTCODE_RREQB: 2097 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2098 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2099 sfp = (struct fw_pkt *)xfer->send.buf; 2100 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2101 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2102 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2103 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2104 sfp->mode.rresb.rtcode = 0; 2105 sfp->mode.rresb.extcode = 0; 2106 break; 2107 case FWTCODE_RREQQ: 2108 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2109 xfer->send.len = 16; 2110 sfp = (struct fw_pkt *)xfer->send.buf; 2111 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2112 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2113 sfp->mode.rresb.rtcode = 0; 2114 break; 2115 default: 2116 fw_xfer_free( xfer); 2117 return; 2118 } 2119 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2120 xfer->dst = ntohs(rfp->mode.hdr.src); 2121 xfer->act.hand = fw_xfer_free; 2122 xfer->retry_req = fw_asybusy; 2123 2124 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2125 sfp->mode.hdr.pri = 0; 2126 2127 fw_asyreq(xfer->fc, -1, xfer); 2128/**/ 2129 return; 2130} 2131#endif 2132 2133/* 2134 * CRC16 check-sum for IEEE1394 register blocks. 2135 */ 2136u_int16_t 2137fw_crc16(u_int32_t *ptr, u_int32_t len){ 2138 u_int32_t i, sum, crc = 0; 2139 int shift; 2140 len = (len + 3) & ~3; 2141 for(i = 0 ; i < len ; i+= 4){ 2142 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2143 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2144 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2145 } 2146 crc &= 0xffff; 2147 } 2148 return((u_int16_t) crc); 2149} 2150 2151static int 2152fw_bmr(struct firewire_comm *fc) 2153{ 2154 struct fw_device fwdev; 2155 union fw_self_id *self_id; 2156 int cmstr; 2157 2158 /* Check to see if the current root node is cycle master capable */ 2159 self_id = &fc->topology_map->self_id[fc->max_node]; 2160 if (fc->max_node > 0) { 2161 /* XXX check cmc bit of businfo block rather than contender */ 2162 if (self_id->p0.link_active && self_id->p0.contender) 2163 cmstr = fc->max_node; 2164 else { 2165 device_printf(fc->bdev, 2166 "root node is not cycle master capable\n"); 2167 /* XXX shall we be the cycle master? */ 2168 cmstr = fc->nodeid; 2169 /* XXX need bus reset */ 2170 } 2171 } else 2172 cmstr = -1; 2173 2174 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2175 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2176 /* We are not the bus manager */ 2177 printf("\n"); 2178 return(0); 2179 } 2180 printf("(me)\n"); 2181 2182 /* Optimize gapcount */ 2183 if(fc->max_hop <= MAX_GAPHOP ) 2184 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2185 /* If we are the cycle master, nothing to do */ 2186 if (cmstr == fc->nodeid || cmstr == -1) 2187 return 0; 2188 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2189 bzero(&fwdev, sizeof(fwdev)); 2190 fwdev.fc = fc; 2191 fwdev.dst = cmstr; 2192 fwdev.speed = 0; 2193 fwdev.maxrec = 8; /* 512 */ 2194 fwdev.status = FWDEVINIT; 2195 /* Set cmstr bit on the cycle master */ 2196 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2197 0xffff, 0xf0000000 | STATE_SET, htonl(1 << 8), 2198 fw_asy_callback_free); 2199 2200 return 0; 2201} 2202 2203DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); 2204MODULE_VERSION(firewire, 1); 2205