firewire.c revision 117067
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 117067 2003-06-30 06:33:18Z 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\n", 337 xfer->dst, i); 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 = 0; 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 src->businfo.generation ++; 626 STAILQ_INIT(&src->chunk_list); 627 628 bzero(root, sizeof(struct crom_chunk)); 629 crom_add_chunk(src, NULL, root, 0); 630 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 631 /* private company_id */ 632 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 633 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 634 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 635 crom_add_simple_text(src, root, &buf->hw, hostname); 636} 637 638/* 639 * Called after bus reset. 640 */ 641void 642fw_busreset(struct firewire_comm *fc) 643{ 644 struct firewire_dev_comm *fdc; 645 device_t *devlistp; 646 int i, devcnt; 647 648 switch(fc->status){ 649 case FWBUSMGRELECT: 650 callout_stop(&fc->bmr_callout); 651 break; 652 default: 653 break; 654 } 655 fc->status = FWBUSRESET; 656 fw_reset_csr(fc); 657 fw_reset_crom(fc); 658 659 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 660 for( i = 0 ; i < devcnt ; i++) 661 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 662 fdc = device_get_softc(devlistp[i]); 663 if (fdc->post_busreset != NULL) 664 fdc->post_busreset(fdc); 665 } 666 free(devlistp, M_TEMP); 667 } 668 669 crom_load(&fc->crom_src_buf->src, fc->config_rom, CROMSIZE); 670} 671 672/* Call once after reboot */ 673void fw_init(struct firewire_comm *fc) 674{ 675 int i; 676 struct csrdir *csrd; 677#ifdef FW_VMACCESS 678 struct fw_xfer *xfer; 679 struct fw_bind *fwb; 680#endif 681 682 fc->max_asyretry = FW_MAXASYRTY; 683 684 fc->arq->queued = 0; 685 fc->ars->queued = 0; 686 fc->atq->queued = 0; 687 fc->ats->queued = 0; 688 689 fc->arq->buf = NULL; 690 fc->ars->buf = NULL; 691 fc->atq->buf = NULL; 692 fc->ats->buf = NULL; 693 694 fc->arq->flag = 0; 695 fc->ars->flag = 0; 696 fc->atq->flag = 0; 697 fc->ats->flag = 0; 698 699 STAILQ_INIT(&fc->atq->q); 700 STAILQ_INIT(&fc->ats->q); 701 702 for( i = 0 ; i < fc->nisodma ; i ++ ){ 703 fc->it[i]->queued = 0; 704 fc->ir[i]->queued = 0; 705 706 fc->it[i]->start = NULL; 707 fc->ir[i]->start = NULL; 708 709 fc->it[i]->buf = NULL; 710 fc->ir[i]->buf = NULL; 711 712 fc->it[i]->flag = FWXFERQ_STREAM; 713 fc->ir[i]->flag = FWXFERQ_STREAM; 714 715 STAILQ_INIT(&fc->it[i]->q); 716 STAILQ_INIT(&fc->ir[i]->q); 717 718 STAILQ_INIT(&fc->it[i]->binds); 719 STAILQ_INIT(&fc->ir[i]->binds); 720 } 721 722 fc->arq->maxq = FWMAXQUEUE; 723 fc->ars->maxq = FWMAXQUEUE; 724 fc->atq->maxq = FWMAXQUEUE; 725 fc->ats->maxq = FWMAXQUEUE; 726 727 for( i = 0 ; i < fc->nisodma ; i++){ 728 fc->ir[i]->maxq = FWMAXQUEUE; 729 fc->it[i]->maxq = FWMAXQUEUE; 730 } 731/* Initialize csr registers */ 732 fc->topology_map = (struct fw_topology_map *)malloc( 733 sizeof(struct fw_topology_map), 734 M_FW, M_NOWAIT | M_ZERO); 735 fc->speed_map = (struct fw_speed_map *)malloc( 736 sizeof(struct fw_speed_map), 737 M_FW, M_NOWAIT | M_ZERO); 738 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 739 CSRARC(fc, TOPO_MAP + 4) = 1; 740 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 741 CSRARC(fc, SPED_MAP + 4) = 1; 742 743 STAILQ_INIT(&fc->devices); 744 STAILQ_INIT(&fc->pending); 745 746/* Initialize csr ROM work space */ 747 SLIST_INIT(&fc->ongocsr); 748 SLIST_INIT(&fc->csrfree); 749 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 750 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 751 if(csrd == NULL) break; 752 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 753 } 754 755/* Initialize Async handlers */ 756 STAILQ_INIT(&fc->binds); 757 for( i = 0 ; i < 0x40 ; i++){ 758 STAILQ_INIT(&fc->tlabels[i]); 759 } 760 761/* DV depend CSRs see blue book */ 762#if 0 763 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 764 CSRARC(fc, oPCR) = 0x8000007a; 765 for(i = 4 ; i < 0x7c/4 ; i+=4){ 766 CSRARC(fc, i + oPCR) = 0x8000007a; 767 } 768 769 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 770 CSRARC(fc, iPCR) = 0x803f0000; 771 for(i = 4 ; i < 0x7c/4 ; i+=4){ 772 CSRARC(fc, i + iPCR) = 0x0; 773 } 774#endif 775 776 fc->crom_src_buf = NULL; 777 778#ifdef FW_VMACCESS 779 xfer = fw_xfer_alloc(); 780 if(xfer == NULL) return; 781 782 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 783 if(fwb == NULL){ 784 fw_xfer_free(xfer); 785 } 786 xfer->act.hand = fw_vmaccess; 787 xfer->fc = fc; 788 xfer->sc = NULL; 789 790 fwb->start_hi = 0x2; 791 fwb->start_lo = 0; 792 fwb->addrlen = 0xffffffff; 793 fwb->xfer = xfer; 794 fw_bindadd(fc, fwb); 795#endif 796} 797 798/* 799 * To lookup binded process from IEEE1394 address. 800 */ 801struct fw_bind * 802fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 803{ 804 struct fw_bind *tfw; 805 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 806 tfw = STAILQ_NEXT(tfw, fclist)){ 807 if (tfw->act_type != FWACT_NULL && 808 tfw->start_hi == dest_hi && 809 tfw->start_lo <= dest_lo && 810 (tfw->start_lo + tfw->addrlen) > dest_lo){ 811 return(tfw); 812 } 813 } 814 return(NULL); 815} 816 817/* 818 * To bind IEEE1394 address block to process. 819 */ 820int 821fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 822{ 823 struct fw_bind *tfw, *tfw2 = NULL; 824 int err = 0; 825 tfw = STAILQ_FIRST(&fc->binds); 826 if(tfw == NULL){ 827 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 828 goto out; 829 } 830 if((tfw->start_hi > fwb->start_hi) || 831 (tfw->start_hi == fwb->start_hi && 832 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 833 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 834 goto out; 835 } 836 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 837 if((tfw->start_hi < fwb->start_hi) || 838 (tfw->start_hi == fwb->start_hi && 839 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 840 tfw2 = STAILQ_NEXT(tfw, fclist); 841 if(tfw2 == NULL) 842 break; 843 if((tfw2->start_hi > fwb->start_hi) || 844 (tfw2->start_hi == fwb->start_hi && 845 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 846 break; 847 }else{ 848 err = EBUSY; 849 goto out; 850 } 851 } 852 } 853 if(tfw != NULL){ 854 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 855 }else{ 856 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 857 } 858out: 859 if (!err && fwb->act_type == FWACT_CH) 860 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 861 return err; 862} 863 864/* 865 * To free IEEE1394 address block. 866 */ 867int 868fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 869{ 870 int s; 871 struct fw_xfer *xfer, *next; 872 873 s = splfw(); 874 /* shall we check the existance? */ 875 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 876 /* shall we do this? */ 877 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 878 next = STAILQ_NEXT(xfer, link); 879 fw_xfer_free(xfer); 880 } 881 STAILQ_INIT(&fwb->xferlist); 882 883 splx(s); 884 return 0; 885} 886 887/* 888 * To free transaction label. 889 */ 890static void 891fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 892{ 893 struct tlabel *tl; 894 int s = splfw(); 895 896 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 897 tl = STAILQ_NEXT(tl, link)){ 898 if(tl->xfer == xfer){ 899 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 900 free(tl, M_FW); 901 splx(s); 902 return; 903 } 904 } 905 splx(s); 906 return; 907} 908 909/* 910 * To obtain XFER structure by transaction label. 911 */ 912static struct fw_xfer * 913fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 914{ 915 struct fw_xfer *xfer; 916 struct tlabel *tl; 917 int s = splfw(); 918 919 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 920 tl = STAILQ_NEXT(tl, link)){ 921 if(tl->xfer->dst == node){ 922 xfer = tl->xfer; 923 splx(s); 924 if (firewire_debug > 2) 925 printf("fw_tl2xfer: found tl=%d\n", tlabel); 926 return(xfer); 927 } 928 } 929 if (firewire_debug > 1) 930 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 931 splx(s); 932 return(NULL); 933} 934 935/* 936 * To allocate IEEE1394 XFER structure. 937 */ 938struct fw_xfer * 939fw_xfer_alloc(struct malloc_type *type) 940{ 941 struct fw_xfer *xfer; 942 943 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 944 if (xfer == NULL) 945 return xfer; 946 947 microtime(&xfer->tv); 948 xfer->malloc = type; 949 950 return xfer; 951} 952 953struct fw_xfer * 954fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 955{ 956 struct fw_xfer *xfer; 957 958 xfer = fw_xfer_alloc(type); 959 xfer->send.len = send_len; 960 xfer->recv.len = recv_len; 961 if (xfer == NULL) 962 return(NULL); 963 if (send_len) { 964 xfer->send.buf = malloc(send_len, type, M_NOWAIT | M_ZERO); 965 if (xfer->send.buf == NULL) { 966 fw_xfer_free(xfer); 967 return(NULL); 968 } 969 } 970 if (recv_len) { 971 xfer->recv.buf = malloc(recv_len, type, M_NOWAIT); 972 if (xfer->recv.buf == NULL) { 973 if (xfer->send.buf != NULL) 974 free(xfer->send.buf, type); 975 fw_xfer_free(xfer); 976 return(NULL); 977 } 978 } 979 return(xfer); 980} 981 982/* 983 * IEEE1394 XFER post process. 984 */ 985void 986fw_xfer_done(struct fw_xfer *xfer) 987{ 988 if (xfer->act.hand == NULL) 989 return; 990 991 if (xfer->fc->status != FWBUSRESET) 992 xfer->act.hand(xfer); 993 else { 994 printf("fw_xfer_done: pending\n"); 995 if (xfer->fc != NULL) 996 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 997 else 998 panic("fw_xfer_done: why xfer->fc is NULL?"); 999 } 1000} 1001 1002void 1003fw_xfer_unload(struct fw_xfer* xfer) 1004{ 1005 int s; 1006 1007 if(xfer == NULL ) return; 1008 if(xfer->state == FWXF_INQ){ 1009 printf("fw_xfer_free FWXF_INQ\n"); 1010 s = splfw(); 1011 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1012 xfer->q->queued --; 1013 splx(s); 1014 } 1015 if (xfer->fc != NULL) { 1016#if 1 1017 if(xfer->state == FWXF_START) 1018 /* 1019 * This could happen if: 1020 * 1. We call fwohci_arcv() before fwohci_txd(). 1021 * 2. firewire_watch() is called. 1022 */ 1023 printf("fw_xfer_free FWXF_START\n"); 1024#endif 1025 fw_tl_free(xfer->fc, xfer); 1026 } 1027 xfer->state = FWXF_INIT; 1028 xfer->resp = 0; 1029 xfer->retry = 0; 1030} 1031/* 1032 * To free IEEE1394 XFER structure. 1033 */ 1034void 1035fw_xfer_free( struct fw_xfer* xfer) 1036{ 1037 if(xfer == NULL ) return; 1038 fw_xfer_unload(xfer); 1039 if(xfer->send.buf != NULL){ 1040 free(xfer->send.buf, xfer->malloc); 1041 } 1042 if(xfer->recv.buf != NULL){ 1043 free(xfer->recv.buf, xfer->malloc); 1044 } 1045 free(xfer, xfer->malloc); 1046} 1047 1048static void 1049fw_asy_callback_free(struct fw_xfer *xfer) 1050{ 1051#if 0 1052 printf("asyreq done state=%d resp=%d\n", 1053 xfer->state, xfer->resp); 1054#endif 1055 fw_xfer_free(xfer); 1056} 1057 1058/* 1059 * To configure PHY. 1060 */ 1061static void 1062fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1063{ 1064 struct fw_xfer *xfer; 1065 struct fw_pkt *fp; 1066 1067 fc->status = FWBUSPHYCONF; 1068 1069 xfer = fw_xfer_alloc_buf(M_FWXFER, 12, 0); 1070 if (xfer == NULL) 1071 return; 1072 xfer->fc = fc; 1073 xfer->retry_req = fw_asybusy; 1074 xfer->act.hand = fw_asy_callback_free; 1075 1076 fp = (struct fw_pkt *)xfer->send.buf; 1077 fp->mode.ld[1] = 0; 1078 if (root_node >= 0) 1079 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1080 if (gap_count >= 0) 1081 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1082 fp->mode.ld[2] = ~fp->mode.ld[1]; 1083/* XXX Dangerous, how to pass PHY packet to device driver */ 1084 fp->mode.common.tcode |= FWTCODE_PHY; 1085 1086 if (firewire_debug) 1087 printf("send phy_config root_node=%d gap_count=%d\n", 1088 root_node, gap_count); 1089 fw_asyreq(fc, -1, xfer); 1090} 1091 1092#if 0 1093/* 1094 * Dump self ID. 1095 */ 1096static void 1097fw_print_sid(u_int32_t sid) 1098{ 1099 union fw_self_id *s; 1100 s = (union fw_self_id *) &sid; 1101 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1102 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1103 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1104 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1105 s->p0.power_class, s->p0.port0, s->p0.port1, 1106 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1107} 1108#endif 1109 1110/* 1111 * To receive self ID. 1112 */ 1113void fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) 1114{ 1115 u_int32_t *p; 1116 union fw_self_id *self_id; 1117 u_int i, j, node, c_port = 0, i_branch = 0; 1118 1119 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1120 fc->status = FWBUSINIT; 1121 fc->max_node = fc->nodeid & 0x3f; 1122 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1123 fc->status = FWBUSCYMELECT; 1124 fc->topology_map->crc_len = 2; 1125 fc->topology_map->generation ++; 1126 fc->topology_map->self_id_count = 0; 1127 fc->topology_map->node_count = 0; 1128 fc->speed_map->generation ++; 1129 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1130 self_id = &fc->topology_map->self_id[0]; 1131 for(i = 0; i < fc->sid_cnt; i ++){ 1132 if (sid[1] != ~sid[0]) { 1133 printf("fw_sidrcv: invalid self-id packet\n"); 1134 sid += 2; 1135 continue; 1136 } 1137 *self_id = *((union fw_self_id *)sid); 1138 fc->topology_map->crc_len++; 1139 if(self_id->p0.sequel == 0){ 1140 fc->topology_map->node_count ++; 1141 c_port = 0; 1142#if 0 1143 fw_print_sid(sid[0]); 1144#endif 1145 node = self_id->p0.phy_id; 1146 if(fc->max_node < node){ 1147 fc->max_node = self_id->p0.phy_id; 1148 } 1149 /* XXX I'm not sure this is the right speed_map */ 1150 fc->speed_map->speed[node][node] 1151 = self_id->p0.phy_speed; 1152 for (j = 0; j < node; j ++) { 1153 fc->speed_map->speed[j][node] 1154 = fc->speed_map->speed[node][j] 1155 = min(fc->speed_map->speed[j][j], 1156 self_id->p0.phy_speed); 1157 } 1158 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1159 (self_id->p0.link_active && self_id->p0.contender)) { 1160 fc->irm = self_id->p0.phy_id; 1161 } 1162 if(self_id->p0.port0 >= 0x2){ 1163 c_port++; 1164 } 1165 if(self_id->p0.port1 >= 0x2){ 1166 c_port++; 1167 } 1168 if(self_id->p0.port2 >= 0x2){ 1169 c_port++; 1170 } 1171 } 1172 if(c_port > 2){ 1173 i_branch += (c_port - 2); 1174 } 1175 sid += 2; 1176 self_id++; 1177 fc->topology_map->self_id_count ++; 1178 } 1179 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1180 /* CRC */ 1181 fc->topology_map->crc = fw_crc16( 1182 (u_int32_t *)&fc->topology_map->generation, 1183 fc->topology_map->crc_len * 4); 1184 fc->speed_map->crc = fw_crc16( 1185 (u_int32_t *)&fc->speed_map->generation, 1186 fc->speed_map->crc_len * 4); 1187 /* byteswap and copy to CSR */ 1188 p = (u_int32_t *)fc->topology_map; 1189 for (i = 0; i <= fc->topology_map->crc_len; i++) 1190 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1191 p = (u_int32_t *)fc->speed_map; 1192 CSRARC(fc, SPED_MAP) = htonl(*p++); 1193 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1194 /* don't byte-swap u_int8_t array */ 1195 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1196 1197 fc->max_hop = fc->max_node - i_branch; 1198 printf(", maxhop <= %d", fc->max_hop); 1199 1200 if(fc->irm == -1 ){ 1201 printf(", Not found IRM capable node"); 1202 }else{ 1203 printf(", cable IRM = %d", fc->irm); 1204 if (fc->irm == fc->nodeid) 1205 printf(" (me)"); 1206 } 1207 printf("\n"); 1208 1209 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1210 if (fc->irm == fc->nodeid) { 1211 fc->status = FWBUSMGRDONE; 1212 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1213 fw_bmr(fc); 1214 } else { 1215 fc->status = FWBUSMGRELECT; 1216 callout_reset(&fc->bmr_callout, hz/8, 1217 (void *)fw_try_bmr, (void *)fc); 1218 } 1219 } else 1220 fc->status = FWBUSMGRDONE; 1221 1222 callout_reset(&fc->busprobe_callout, hz/4, 1223 (void *)fw_bus_probe, (void *)fc); 1224} 1225 1226/* 1227 * To probe devices on the IEEE1394 bus. 1228 */ 1229static void 1230fw_bus_probe(struct firewire_comm *fc) 1231{ 1232 int s; 1233 struct fw_device *fwdev, *next; 1234 1235 s = splfw(); 1236 fc->status = FWBUSEXPLORE; 1237 fc->retry_count = 0; 1238 1239/* 1240 * Invalidate all devices, just after bus reset. Devices 1241 * to be removed has not been seen longer time. 1242 */ 1243 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1244 next = STAILQ_NEXT(fwdev, link); 1245 if (fwdev->status != FWDEVINVAL) { 1246 fwdev->status = FWDEVINVAL; 1247 fwdev->rcnt = 0; 1248 } else if(fwdev->rcnt < FW_MAXDEVRCNT) { 1249 fwdev->rcnt ++; 1250 } else { 1251 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1252 free(fwdev, M_FW); 1253 } 1254 } 1255 fc->ongonode = 0; 1256 fc->ongoaddr = CSRROMOFF; 1257 fc->ongodev = NULL; 1258 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1259 fw_bus_explore(fc); 1260 splx(s); 1261} 1262 1263/* 1264 * To collect device informations on the IEEE1394 bus. 1265 */ 1266static void 1267fw_bus_explore(struct firewire_comm *fc ) 1268{ 1269 int err = 0; 1270 struct fw_device *fwdev, *pfwdev, *tfwdev; 1271 u_int32_t addr; 1272 struct fw_xfer *xfer; 1273 struct fw_pkt *fp; 1274 1275 if(fc->status != FWBUSEXPLORE) 1276 return; 1277 1278loop: 1279 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1280 1281 if(fc->ongonode > fc->max_node) goto done; 1282 if(fc->ongonode >= 0x3f) goto done; 1283 1284 /* check link */ 1285 /* XXX we need to check phy_id first */ 1286 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1287 if (firewire_debug) 1288 printf("node%d: link down\n", fc->ongonode); 1289 fc->ongonode++; 1290 goto loop; 1291 } 1292 1293 if(fc->ongoaddr <= CSRROMOFF && 1294 fc->ongoeui.hi == 0xffffffff && 1295 fc->ongoeui.lo == 0xffffffff ){ 1296 fc->ongoaddr = CSRROMOFF; 1297 addr = 0xf0000000 | fc->ongoaddr; 1298 }else if(fc->ongoeui.hi == 0xffffffff ){ 1299 fc->ongoaddr = CSRROMOFF + 0xc; 1300 addr = 0xf0000000 | fc->ongoaddr; 1301 }else if(fc->ongoeui.lo == 0xffffffff ){ 1302 fc->ongoaddr = CSRROMOFF + 0x10; 1303 addr = 0xf0000000 | fc->ongoaddr; 1304 }else if(fc->ongodev == NULL){ 1305 STAILQ_FOREACH(fwdev, &fc->devices, link) 1306 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1307 break; 1308 if(fwdev != NULL){ 1309 fwdev->dst = fc->ongonode; 1310 fwdev->status = FWDEVATTACHED; 1311 fc->ongonode++; 1312 fc->ongoaddr = CSRROMOFF; 1313 fc->ongodev = NULL; 1314 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1315 goto loop; 1316 } 1317 fwdev = malloc(sizeof(struct fw_device), M_FW, 1318 M_NOWAIT | M_ZERO); 1319 if(fwdev == NULL) 1320 return; 1321 fwdev->fc = fc; 1322 fwdev->rommax = 0; 1323 fwdev->dst = fc->ongonode; 1324 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1325 fwdev->status = FWDEVINIT; 1326 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1327 1328 pfwdev = NULL; 1329 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1330 if (tfwdev->eui.hi > fwdev->eui.hi || 1331 (tfwdev->eui.hi == fwdev->eui.hi && 1332 tfwdev->eui.lo > fwdev->eui.lo)) 1333 break; 1334 pfwdev = tfwdev; 1335 } 1336 if (pfwdev == NULL) 1337 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1338 else 1339 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1340 1341 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1342 linkspeed[fwdev->speed], 1343 fc->ongoeui.hi, fc->ongoeui.lo); 1344 1345 fc->ongodev = fwdev; 1346 fc->ongoaddr = CSRROMOFF; 1347 addr = 0xf0000000 | fc->ongoaddr; 1348 }else{ 1349 addr = 0xf0000000 | fc->ongoaddr; 1350 } 1351#if 0 1352 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1353 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1354 fw_bus_explore_callback); 1355 if(xfer == NULL) goto done; 1356#else 1357 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 16); 1358 if(xfer == NULL){ 1359 goto done; 1360 } 1361 xfer->spd = 0; 1362 fp = (struct fw_pkt *)xfer->send.buf; 1363 fp->mode.rreqq.dest_hi = 0xffff; 1364 fp->mode.rreqq.tlrt = 0; 1365 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1366 fp->mode.rreqq.pri = 0; 1367 fp->mode.rreqq.src = 0; 1368 xfer->dst = FWLOCALBUS | fc->ongonode; 1369 fp->mode.rreqq.dst = xfer->dst; 1370 fp->mode.rreqq.dest_lo = addr; 1371 xfer->act.hand = fw_bus_explore_callback; 1372 1373 if (firewire_debug) 1374 printf("node%d: explore addr=0x%x\n", 1375 fc->ongonode, fc->ongoaddr); 1376 err = fw_asyreq(fc, -1, xfer); 1377 if(err){ 1378 fw_xfer_free( xfer); 1379 return; 1380 } 1381#endif 1382 return; 1383done: 1384 /* fw_attach_devs */ 1385 fc->status = FWBUSEXPDONE; 1386 if (firewire_debug) 1387 printf("bus_explore done\n"); 1388 fw_attach_dev(fc); 1389 return; 1390 1391} 1392 1393/* Portable Async. request read quad */ 1394struct fw_xfer * 1395asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1396 u_int32_t addr_hi, u_int32_t addr_lo, 1397 void (*hand) __P((struct fw_xfer*))) 1398{ 1399 struct fw_xfer *xfer; 1400 struct fw_pkt *fp; 1401 int err; 1402 1403 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 16); 1404 if (xfer == NULL) 1405 return NULL; 1406 1407 xfer->spd = spd; /* XXX:min(spd, fc->spd) */ 1408 fp = (struct fw_pkt *)xfer->send.buf; 1409 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1410 if(tl & FWP_TL_VALID){ 1411 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1412 }else{ 1413 fp->mode.rreqq.tlrt = 0; 1414 } 1415 fp->mode.rreqq.tlrt |= rt & 0x3; 1416 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1417 fp->mode.rreqq.pri = 0; 1418 fp->mode.rreqq.src = 0; 1419 xfer->dst = addr_hi >> 16; 1420 fp->mode.rreqq.dst = xfer->dst; 1421 fp->mode.rreqq.dest_lo = addr_lo; 1422 xfer->act.hand = hand; 1423 1424 err = fw_asyreq(fc, -1, xfer); 1425 if(err){ 1426 fw_xfer_free( xfer); 1427 return NULL; 1428 } 1429 return xfer; 1430} 1431 1432/* 1433 * Callback for the IEEE1394 bus information collection. 1434 */ 1435static void 1436fw_bus_explore_callback(struct fw_xfer *xfer) 1437{ 1438 struct firewire_comm *fc; 1439 struct fw_pkt *sfp,*rfp; 1440 struct csrhdr *chdr; 1441 struct csrdir *csrd; 1442 struct csrreg *csrreg; 1443 u_int32_t offset; 1444 1445 1446 if(xfer == NULL) { 1447 printf("xfer == NULL\n"); 1448 return; 1449 } 1450 fc = xfer->fc; 1451 1452 if (firewire_debug) 1453 printf("node%d: callback addr=0x%x\n", 1454 fc->ongonode, fc->ongoaddr); 1455 1456 if(xfer->resp != 0){ 1457 printf("node%d: resp=%d addr=0x%x\n", 1458 fc->ongonode, xfer->resp, fc->ongoaddr); 1459 goto errnode; 1460 } 1461 1462 if(xfer->send.buf == NULL){ 1463 printf("node%d: send.buf=NULL addr=0x%x\n", 1464 fc->ongonode, fc->ongoaddr); 1465 goto errnode; 1466 } 1467 sfp = (struct fw_pkt *)xfer->send.buf; 1468 1469 if(xfer->recv.buf == NULL){ 1470 printf("node%d: recv.buf=NULL addr=0x%x\n", 1471 fc->ongonode, fc->ongoaddr); 1472 goto errnode; 1473 } 1474 rfp = (struct fw_pkt *)xfer->recv.buf; 1475#if 0 1476 { 1477 u_int32_t *qld; 1478 int i; 1479 qld = (u_int32_t *)xfer->recv.buf; 1480 printf("len:%d\n", xfer->recv.len); 1481 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1482 printf("0x%08x ", rfp->mode.ld[i/4]); 1483 if((i % 16) == 15) printf("\n"); 1484 } 1485 if((i % 16) != 15) printf("\n"); 1486 } 1487#endif 1488 if(fc->ongodev == NULL){ 1489 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1490 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1491 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1492/* If CSR is minimal confinguration, more investgation is not needed. */ 1493 if(chdr->info_len == 1){ 1494 if (firewire_debug) 1495 printf("node%d: minimal config\n", 1496 fc->ongonode); 1497 goto nextnode; 1498 }else{ 1499 fc->ongoaddr = CSRROMOFF + 0xc; 1500 } 1501 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1502 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1503 fc->ongoaddr = CSRROMOFF + 0x10; 1504 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1505 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1506 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1507 if (firewire_debug) 1508 printf("node%d: eui64 is zero.\n", 1509 fc->ongonode); 1510 goto nextnode; 1511 } 1512 fc->ongoaddr = CSRROMOFF; 1513 } 1514 }else{ 1515 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1516 if(fc->ongoaddr > fc->ongodev->rommax){ 1517 fc->ongodev->rommax = fc->ongoaddr; 1518 } 1519 csrd = SLIST_FIRST(&fc->ongocsr); 1520 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1521 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1522 offset = CSRROMOFF; 1523 }else{ 1524 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1525 offset = csrd->off; 1526 } 1527 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1528 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1529 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1530 csrd = SLIST_FIRST(&fc->csrfree); 1531 if(csrd == NULL){ 1532 goto nextnode; 1533 }else{ 1534 csrd->ongoaddr = fc->ongoaddr; 1535 fc->ongoaddr += csrreg->val * 4; 1536 csrd->off = fc->ongoaddr; 1537 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1538 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1539 goto nextaddr; 1540 } 1541 } 1542 } 1543 fc->ongoaddr += 4; 1544 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1545 (fc->ongodev->rommax < 0x414)){ 1546 if(fc->ongodev->rommax <= 0x414){ 1547 csrd = SLIST_FIRST(&fc->csrfree); 1548 if(csrd == NULL) goto nextnode; 1549 csrd->off = fc->ongoaddr; 1550 csrd->ongoaddr = fc->ongoaddr; 1551 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1552 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1553 } 1554 goto nextaddr; 1555 } 1556 1557 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1558 if(csrd == NULL){ 1559 goto nextnode; 1560 }; 1561 fc->ongoaddr = csrd->ongoaddr + 4; 1562 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1563 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1564 csrd = SLIST_FIRST(&fc->ongocsr); 1565 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1566 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1567 offset = CSRROMOFF; 1568 }else{ 1569 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1570 offset = csrd->off; 1571 } 1572 } 1573 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1574 goto nextnode; 1575 } 1576 } 1577nextaddr: 1578 fw_xfer_free( xfer); 1579 fw_bus_explore(fc); 1580 return; 1581errnode: 1582 fc->retry_count++; 1583 if (fc->ongodev != NULL) 1584 fc->ongodev->status = FWDEVINVAL; 1585nextnode: 1586 fw_xfer_free( xfer); 1587 fc->ongonode++; 1588/* housekeeping work space */ 1589 fc->ongoaddr = CSRROMOFF; 1590 fc->ongodev = NULL; 1591 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1592 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1593 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1594 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1595 } 1596 fw_bus_explore(fc); 1597 return; 1598} 1599 1600/* 1601 * To attach sub-devices layer onto IEEE1394 bus. 1602 */ 1603static void 1604fw_attach_dev(struct firewire_comm *fc) 1605{ 1606 struct fw_device *fwdev; 1607 struct fw_xfer *xfer; 1608 int i, err; 1609 device_t *devlistp; 1610 int devcnt; 1611 struct firewire_dev_comm *fdc; 1612 1613 STAILQ_FOREACH(fwdev, &fc->devices, link) 1614 if (fwdev->status == FWDEVINIT) 1615 fwdev->status = FWDEVATTACHED; 1616 1617 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1618 if( err != 0 ) 1619 return; 1620 for( i = 0 ; i < devcnt ; i++){ 1621 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1622 fdc = device_get_softc(devlistp[i]); 1623 if (fdc->post_explore != NULL) 1624 fdc->post_explore(fdc); 1625 } 1626 } 1627 free(devlistp, M_TEMP); 1628 1629 /* call pending handlers */ 1630 i = 0; 1631 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1632 STAILQ_REMOVE_HEAD(&fc->pending, link); 1633 i++; 1634 if (xfer->act.hand) 1635 xfer->act.hand(xfer); 1636 } 1637 if (i > 0) 1638 printf("fw_attach_dev: %d pending handlers called\n", i); 1639 if (fc->retry_count > 0) { 1640 printf("probe failed for %d node\n", fc->retry_count); 1641#if 0 1642 callout_reset(&fc->retry_probe_callout, hz*2, 1643 (void *)fc->ibr, (void *)fc); 1644#endif 1645 } 1646 return; 1647} 1648 1649/* 1650 * To allocate uniq transaction label. 1651 */ 1652static int 1653fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1654{ 1655 u_int i; 1656 struct tlabel *tl, *tmptl; 1657 int s; 1658 static u_int32_t label = 0; 1659 1660 s = splfw(); 1661 for( i = 0 ; i < 0x40 ; i ++){ 1662 label = (label + 1) & 0x3f; 1663 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1664 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1665 if(tmptl->xfer->dst == xfer->dst) break; 1666 } 1667 if(tmptl == NULL) { 1668 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1669 if (tl == NULL) { 1670 splx(s); 1671 return (-1); 1672 } 1673 tl->xfer = xfer; 1674 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1675 splx(s); 1676 if (firewire_debug > 1) 1677 printf("fw_get_tlabel: dst=%d tl=%d\n", 1678 xfer->dst, label); 1679 return(label); 1680 } 1681 } 1682 splx(s); 1683 1684 printf("fw_get_tlabel: no free tlabel\n"); 1685 return(-1); 1686} 1687 1688static void 1689fw_rcv_copy(struct fw_xfer *xfer, struct iovec *vec, int nvec) 1690{ 1691 char *p; 1692 int res, i, len; 1693 1694 p = xfer->recv.buf; 1695 res = xfer->recv.len; 1696 for (i = 0; i < nvec; i++, vec++) { 1697 len = vec->iov_len; 1698 if (res < len) { 1699 printf("rcv buffer(%d) is %d bytes short.\n", 1700 xfer->recv.len, len - res); 1701 len = res; 1702 } 1703 bcopy(vec->iov_base, p, len); 1704 p += len; 1705 res -= len; 1706 if (res <= 0) 1707 break; 1708 } 1709 xfer->recv.len -= res; 1710} 1711 1712/* 1713 * Generic packet receving process. 1714 */ 1715void 1716fw_rcv(struct firewire_comm *fc, struct iovec *vec, int nvec, u_int sub, u_int spd) 1717{ 1718 struct fw_pkt *fp, *resfp; 1719 struct fw_xfer *xfer; 1720 struct fw_bind *bind; 1721 struct firewire_softc *sc; 1722 int tcode, s; 1723 int i, len, oldstate; 1724#if 0 1725 { 1726 u_int32_t *qld; 1727 int i; 1728 qld = (u_int32_t *)buf; 1729 printf("spd %d len:%d\n", spd, len); 1730 for( i = 0 ; i <= len && i < 32; i+= 4){ 1731 printf("0x%08x ", ntohl(qld[i/4])); 1732 if((i % 16) == 15) printf("\n"); 1733 } 1734 if((i % 16) != 15) printf("\n"); 1735 } 1736#endif 1737 fp = (struct fw_pkt *)vec[0].iov_base; 1738 tcode = fp->mode.common.tcode; 1739#if 0 /* XXX this check is not valid for RRESQ and WREQQ */ 1740 if (vec[0].iov_len < fc->tcode[tcode].hdr_len) { 1741#if __FreeBSD_version >= 500000 1742 printf("fw_rcv: iov_len(%zu) is less than" 1743#else 1744 printf("fw_rcv: iov_len(%u) is less than" 1745#endif 1746 " hdr_len(%d:tcode=%d)\n", vec[0].iov_len, 1747 fc->tcode[tcode].hdr_len, tcode); 1748 } 1749#endif 1750 switch (tcode) { 1751 case FWTCODE_WRES: 1752 case FWTCODE_RRESQ: 1753 case FWTCODE_RRESB: 1754 case FWTCODE_LRES: 1755 xfer = fw_tl2xfer(fc, fp->mode.hdr.src, 1756 fp->mode.hdr.tlrt >> 2); 1757 if(xfer == NULL) { 1758 printf("fw_rcv: unknown response " 1759 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n", 1760 tcode, 1761 fp->mode.hdr.src, 1762 fp->mode.hdr.tlrt >> 2, 1763 fp->mode.hdr.tlrt & 3, 1764 fp->mode.rresq.data); 1765#if 1 1766 printf("try ad-hoc work around!!\n"); 1767 xfer = fw_tl2xfer(fc, fp->mode.hdr.src, 1768 (fp->mode.hdr.tlrt >> 2)^3); 1769 if (xfer == NULL) { 1770 printf("no use...\n"); 1771 goto err; 1772 } 1773#else 1774 goto err; 1775#endif 1776 } 1777 fw_rcv_copy(xfer, vec, nvec); 1778 xfer->resp = 0; 1779 /* make sure the packet is drained in AT queue */ 1780 oldstate = xfer->state; 1781 xfer->state = FWXF_RCVD; 1782 switch (oldstate) { 1783 case FWXF_SENT: 1784 fw_xfer_done(xfer); 1785 break; 1786 case FWXF_START: 1787 if (firewire_debug) 1788 printf("not sent yet\n"); 1789 break; 1790 default: 1791 printf("unexpected state %d\n", xfer->state); 1792 } 1793 return; 1794 case FWTCODE_WREQQ: 1795 case FWTCODE_WREQB: 1796 case FWTCODE_RREQQ: 1797 case FWTCODE_RREQB: 1798 case FWTCODE_LREQ: 1799 bind = fw_bindlookup(fc, fp->mode.rreqq.dest_hi, 1800 fp->mode.rreqq.dest_lo); 1801 if(bind == NULL){ 1802#if __FreeBSD_version >= 500000 1803 printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%x\n", 1804#else 1805 printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%lx\n", 1806#endif 1807 fp->mode.wreqq.dest_hi, 1808 fp->mode.wreqq.dest_lo, 1809 tcode, 1810 fp->mode.hdr.src, 1811 ntohl(fp->mode.wreqq.data)); 1812 if (fc->status == FWBUSRESET) { 1813 printf("fw_rcv: cannot respond(bus reset)!\n"); 1814 goto err; 1815 } 1816 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 0); 1817 if(xfer == NULL){ 1818 return; 1819 } 1820 xfer->spd = spd; 1821 resfp = (struct fw_pkt *)xfer->send.buf; 1822 switch (tcode) { 1823 case FWTCODE_WREQQ: 1824 case FWTCODE_WREQB: 1825 resfp->mode.hdr.tcode = FWTCODE_WRES; 1826 xfer->send.len = 12; 1827 break; 1828 case FWTCODE_RREQQ: 1829 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1830 xfer->send.len = 16; 1831 break; 1832 case FWTCODE_RREQB: 1833 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1834 xfer->send.len = 16; 1835 break; 1836 case FWTCODE_LREQ: 1837 resfp->mode.hdr.tcode = FWTCODE_LRES; 1838 xfer->send.len = 16; 1839 break; 1840 } 1841 resfp->mode.hdr.dst = fp->mode.hdr.src; 1842 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1843 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1844 resfp->mode.rresb.rtcode = 7; 1845 resfp->mode.rresb.extcode = 0; 1846 resfp->mode.rresb.len = 0; 1847/* 1848 xfer->act.hand = fw_asy_callback; 1849*/ 1850 xfer->act.hand = fw_xfer_free; 1851 if(fw_asyreq(fc, -1, xfer)){ 1852 fw_xfer_free( xfer); 1853 return; 1854 } 1855 goto err; 1856 } 1857 len = 0; 1858 for (i = 0; i < nvec; i ++) 1859 len += vec[i].iov_len; 1860 switch(bind->act_type){ 1861 case FWACT_XFER: 1862 /* splfw()?? */ 1863 xfer = STAILQ_FIRST(&bind->xferlist); 1864 if (xfer == NULL) { 1865 printf("Discard a packet for this bind.\n"); 1866 goto err; 1867 } 1868 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1869 fw_rcv_copy(xfer, vec, nvec); 1870 xfer->spd = spd; 1871 if (fc->status != FWBUSRESET) 1872 xfer->act.hand(xfer); 1873 else 1874 STAILQ_INSERT_TAIL(&fc->pending, xfer, link); 1875 return; 1876 break; 1877 case FWACT_CH: 1878 if(fc->ir[bind->sub]->queued >= 1879 fc->ir[bind->sub]->maxq){ 1880 device_printf(fc->bdev, 1881 "Discard a packet %x %d\n", 1882 bind->sub, 1883 fc->ir[bind->sub]->queued); 1884 goto err; 1885 } 1886 xfer = STAILQ_FIRST(&bind->xferlist); 1887 if (xfer == NULL) { 1888 printf("Discard packet for this bind\n"); 1889 goto err; 1890 } 1891 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1892 fw_rcv_copy(xfer, vec, nvec); 1893 xfer->spd = spd; 1894 s = splfw(); 1895 fc->ir[bind->sub]->queued++; 1896 STAILQ_INSERT_TAIL(&fc->ir[bind->sub]->q, xfer, link); 1897 splx(s); 1898 1899 wakeup((caddr_t)fc->ir[bind->sub]); 1900 1901 return; 1902 break; 1903 default: 1904 goto err; 1905 break; 1906 } 1907 break; 1908 case FWTCODE_STREAM: 1909 { 1910 struct fw_xferq *xferq; 1911 1912 xferq = fc->ir[sub]; 1913#if 0 1914 printf("stream rcv dma %d len %d off %d spd %d\n", 1915 sub, len, off, spd); 1916#endif 1917 if(xferq->queued >= xferq->maxq) { 1918 printf("receive queue is full\n"); 1919 goto err; 1920 } 1921 /* XXX get xfer from xfer queue, we don't need copy for 1922 per packet mode */ 1923 xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1924 vec[0].iov_len); 1925 if(xfer == NULL) goto err; 1926 fw_rcv_copy(xfer, vec, nvec); 1927 xfer->spd = spd; 1928 s = splfw(); 1929 xferq->queued++; 1930 STAILQ_INSERT_TAIL(&xferq->q, xfer, link); 1931 splx(s); 1932 sc = device_get_softc(fc->bdev); 1933#if __FreeBSD_version >= 500000 1934 if (SEL_WAITING(&xferq->rsel)) 1935#else 1936 if (&xferq->rsel.si_pid != 0) 1937#endif 1938 selwakeup(&xferq->rsel); 1939 if (xferq->flag & FWXFERQ_WAKEUP) { 1940 xferq->flag &= ~FWXFERQ_WAKEUP; 1941 wakeup((caddr_t)xferq); 1942 } 1943 if (xferq->flag & FWXFERQ_HANDLER) { 1944 xferq->hand(xferq); 1945 } 1946 return; 1947 break; 1948 } 1949 default: 1950 printf("fw_rcv: unknow tcode %d\n", tcode); 1951 break; 1952 } 1953err: 1954 return; 1955} 1956 1957/* 1958 * Post process for Bus Manager election process. 1959 */ 1960static void 1961fw_try_bmr_callback(struct fw_xfer *xfer) 1962{ 1963 struct fw_pkt *rfp; 1964 struct firewire_comm *fc; 1965 int bmr; 1966 1967 if (xfer == NULL) 1968 return; 1969 fc = xfer->fc; 1970 if (xfer->resp != 0) 1971 goto error; 1972 if (xfer->send.buf == NULL) 1973 goto error; 1974 if (xfer->recv.buf == NULL) 1975 goto error; 1976 rfp = (struct fw_pkt *)xfer->recv.buf; 1977 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE) 1978 goto error; 1979 1980 bmr = ntohl(rfp->mode.lres.payload[0]); 1981 if (bmr == 0x3f) 1982 bmr = fc->nodeid; 1983 1984 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 1985 fw_xfer_free(xfer); 1986 fw_bmr(fc); 1987 return; 1988 1989error: 1990 device_printf(fc->bdev, "bus manager election failed\n"); 1991 fw_xfer_free(xfer); 1992} 1993 1994 1995/* 1996 * To candidate Bus Manager election process. 1997 */ 1998static void 1999fw_try_bmr(void *arg) 2000{ 2001 struct fw_xfer *xfer; 2002 struct firewire_comm *fc = (struct firewire_comm *)arg; 2003 struct fw_pkt *fp; 2004 int err = 0; 2005 2006 xfer = fw_xfer_alloc_buf(M_FWXFER, 24, 20); 2007 if(xfer == NULL){ 2008 return; 2009 } 2010 xfer->spd = 0; 2011 fc->status = FWBUSMGRELECT; 2012 2013 fp = (struct fw_pkt *)xfer->send.buf; 2014 fp->mode.lreq.dest_hi = 0xffff; 2015 fp->mode.lreq.tlrt = 0; 2016 fp->mode.lreq.tcode = FWTCODE_LREQ; 2017 fp->mode.lreq.pri = 0; 2018 fp->mode.lreq.src = 0; 2019 fp->mode.lreq.len = 8; 2020 fp->mode.lreq.extcode = FW_LREQ_CMPSWAP; 2021 xfer->dst = FWLOCALBUS | fc->irm; 2022 fp->mode.lreq.dst = xfer->dst; 2023 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2024 fp->mode.lreq.payload[0] = htonl(0x3f); 2025 fp->mode.lreq.payload[1] = htonl(fc->nodeid); 2026 xfer->act.hand = fw_try_bmr_callback; 2027 2028 err = fw_asyreq(fc, -1, xfer); 2029 if(err){ 2030 fw_xfer_free( xfer); 2031 return; 2032 } 2033 return; 2034} 2035 2036#ifdef FW_VMACCESS 2037/* 2038 * Software implementation for physical memory block access. 2039 * XXX:Too slow, usef for debug purpose only. 2040 */ 2041static void 2042fw_vmaccess(struct fw_xfer *xfer){ 2043 struct fw_pkt *rfp, *sfp = NULL; 2044 u_int32_t *ld = (u_int32_t *)xfer->recv.buf; 2045 2046 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2047 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2048 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2049 if(xfer->resp != 0){ 2050 fw_xfer_free( xfer); 2051 return; 2052 } 2053 if(xfer->recv.buf == NULL){ 2054 fw_xfer_free( xfer); 2055 return; 2056 } 2057 rfp = (struct fw_pkt *)xfer->recv.buf; 2058 switch(rfp->mode.hdr.tcode){ 2059 /* XXX need fix for 64bit arch */ 2060 case FWTCODE_WREQB: 2061 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2062 xfer->send.len = 12; 2063 sfp = (struct fw_pkt *)xfer->send.buf; 2064 bcopy(rfp->mode.wreqb.payload, 2065 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2066 sfp->mode.wres.tcode = FWTCODE_WRES; 2067 sfp->mode.wres.rtcode = 0; 2068 break; 2069 case FWTCODE_WREQQ: 2070 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2071 xfer->send.len = 12; 2072 sfp->mode.wres.tcode = FWTCODE_WRES; 2073 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2074 sfp->mode.wres.rtcode = 0; 2075 break; 2076 case FWTCODE_RREQB: 2077 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2078 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2079 sfp = (struct fw_pkt *)xfer->send.buf; 2080 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2081 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2082 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2083 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2084 sfp->mode.rresb.rtcode = 0; 2085 sfp->mode.rresb.extcode = 0; 2086 break; 2087 case FWTCODE_RREQQ: 2088 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2089 xfer->send.len = 16; 2090 sfp = (struct fw_pkt *)xfer->send.buf; 2091 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2092 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2093 sfp->mode.rresb.rtcode = 0; 2094 break; 2095 default: 2096 fw_xfer_free( xfer); 2097 return; 2098 } 2099 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2100 xfer->dst = ntohs(rfp->mode.hdr.src); 2101 xfer->act.hand = fw_xfer_free; 2102 xfer->retry_req = fw_asybusy; 2103 2104 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2105 sfp->mode.hdr.pri = 0; 2106 2107 fw_asyreq(xfer->fc, -1, xfer); 2108/**/ 2109 return; 2110} 2111#endif 2112 2113/* 2114 * CRC16 check-sum for IEEE1394 register blocks. 2115 */ 2116u_int16_t 2117fw_crc16(u_int32_t *ptr, u_int32_t len){ 2118 u_int32_t i, sum, crc = 0; 2119 int shift; 2120 len = (len + 3) & ~3; 2121 for(i = 0 ; i < len ; i+= 4){ 2122 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2123 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2124 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2125 } 2126 crc &= 0xffff; 2127 } 2128 return((u_int16_t) crc); 2129} 2130 2131static int 2132fw_bmr(struct firewire_comm *fc) 2133{ 2134 struct fw_device fwdev; 2135 union fw_self_id *self_id; 2136 int cmstr; 2137 2138 /* Check to see if the current root node is cycle master capable */ 2139 self_id = &fc->topology_map->self_id[fc->max_node]; 2140 if (fc->max_node > 0) { 2141 /* XXX check cmc bit of businfo block rather than contender */ 2142 if (self_id->p0.link_active && self_id->p0.contender) 2143 cmstr = fc->max_node; 2144 else { 2145 device_printf(fc->bdev, 2146 "root node is not cycle master capable\n"); 2147 /* XXX shall we be the cycle master? */ 2148 cmstr = fc->nodeid; 2149 /* XXX need bus reset */ 2150 } 2151 } else 2152 cmstr = -1; 2153 2154 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2155 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2156 /* We are not the bus manager */ 2157 printf("\n"); 2158 return(0); 2159 } 2160 printf("(me)\n"); 2161 2162 /* Optimize gapcount */ 2163 if(fc->max_hop <= MAX_GAPHOP ) 2164 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2165 /* If we are the cycle master, nothing to do */ 2166 if (cmstr == fc->nodeid || cmstr == -1) 2167 return 0; 2168 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2169 bzero(&fwdev, sizeof(fwdev)); 2170 fwdev.fc = fc; 2171 fwdev.dst = cmstr; 2172 fwdev.speed = 0; 2173 fwdev.maxrec = 8; /* 512 */ 2174 fwdev.status = FWDEVINIT; 2175 /* Set cmstr bit on the cycle master */ 2176 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2177 0xffff, 0xf0000000 | STATE_SET, htonl(1 << 8), 2178 fw_asy_callback_free); 2179 2180 return 0; 2181} 2182 2183DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); 2184MODULE_VERSION(firewire, 1); 2185