1 /* 2 * Copyright (c) 2003 Hidetoshi Shimokawa 3 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the acknowledgement as bellow: 16 * 17 * This product includes software developed by K. Kobayashi and H. Shimokawa 18 * 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 25 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 * 34 * $FreeBSD$ 35 * 36 */ 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/types.h> 41 42 #include <sys/kernel.h> 43 #include <sys/malloc.h> 44 #include <sys/conf.h> 45 #include <sys/sysctl.h> 46 47 #if __FreeBSD_version < 500000 48 #include <machine/clock.h> /* for DELAY() */ 49 #endif 50 51 #include <sys/bus.h> /* used by smbus and newbus */ 52 #include <machine/bus.h> 53 54 #include <dev/firewire/firewire.h> 55 #include <dev/firewire/firewirereg.h> 56 #include <dev/firewire/fwmem.h> 57 #include <dev/firewire/iec13213.h> 58 #include <dev/firewire/iec68113.h> 59 60 struct crom_src_buf { 61 struct crom_src src; 62 struct crom_chunk root; 63 struct crom_chunk vendor; 64 struct crom_chunk hw; 65 }; 66 67 int firewire_debug=0, try_bmr=1, hold_count=3; 68 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 69 "FireWire driver debug flag"); 70 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 71 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 72 "Try to be a bus manager"); 73 SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0, 74 "Number of count of bus resets for removing lost device information"); 75 76 MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 77 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 78 79 #define FW_MAXASYRTY 4 80 81 devclass_t firewire_devclass; 82 83 static int firewire_match __P((device_t)); 84 static int firewire_attach __P((device_t)); 85 static int firewire_detach __P((device_t)); 86 static int firewire_resume __P((device_t)); 87 #if 0 88 static int firewire_shutdown __P((device_t)); 89 #endif 90 static device_t firewire_add_child __P((device_t, int, const char *, int)); 91 static void fw_try_bmr __P((void *)); 92 static void fw_try_bmr_callback __P((struct fw_xfer *)); 93 static void fw_asystart __P((struct fw_xfer *)); 94 static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *)); 95 static void fw_bus_probe __P((struct firewire_comm *)); 96 static void fw_bus_explore __P((struct firewire_comm *)); 97 static void fw_bus_explore_callback __P((struct fw_xfer *)); 98 static void fw_attach_dev __P((struct firewire_comm *)); 99 #ifdef FW_VMACCESS 100 static void fw_vmaccess __P((struct fw_xfer *)); 101 #endif 102 struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 103 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *)))); 104 static int fw_bmr __P((struct firewire_comm *)); 105 106 static device_method_t firewire_methods[] = { 107 /* Device interface */ 108 DEVMETHOD(device_probe, firewire_match), 109 DEVMETHOD(device_attach, firewire_attach), 110 DEVMETHOD(device_detach, firewire_detach), 111 DEVMETHOD(device_suspend, bus_generic_suspend), 112 DEVMETHOD(device_resume, firewire_resume), 113 DEVMETHOD(device_shutdown, bus_generic_shutdown), 114 115 /* Bus interface */ 116 DEVMETHOD(bus_add_child, firewire_add_child), 117 DEVMETHOD(bus_print_child, bus_generic_print_child), 118 119 { 0, 0 } 120 }; 121 char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"}; 122 123 /* IEEE-1394a Table C-2 Gap count as a function of hops*/ 124 #define MAX_GAPHOP 15 125 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 126 21, 24, 26, 29, 32, 35, 37, 40}; 127 128 static driver_t firewire_driver = { 129 "firewire", 130 firewire_methods, 131 sizeof(struct firewire_softc), 132 }; 133 134 /* 135 * Lookup fwdev by node id. 136 */ 137 struct fw_device * 138 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 139 { 140 struct fw_device *fwdev; 141 int s; 142 143 s = splfw(); 144 STAILQ_FOREACH(fwdev, &fc->devices, link) 145 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 146 break; 147 splx(s); 148 149 return fwdev; 150 } 151 152 /* 153 * Lookup fwdev by EUI64. 154 */ 155 struct fw_device * 156 fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 157 { 158 struct fw_device *fwdev; 159 int s; 160 161 s = splfw(); 162 STAILQ_FOREACH(fwdev, &fc->devices, link) 163 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 164 break; 165 splx(s); 166 167 if(fwdev == NULL) return NULL; 168 if(fwdev->status == FWDEVINVAL) return NULL; 169 return fwdev; 170 } 171 172 /* 173 * Async. request procedure for userland application. 174 */ 175 int 176 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 177 { 178 int err = 0; 179 struct fw_xferq *xferq; 180 int tl = 0, len; 181 struct fw_pkt *fp; 182 int tcode; 183 struct tcode_info *info; 184 185 if(xfer == NULL) return EINVAL; 186 if(xfer->act.hand == NULL){ 187 printf("act.hand == NULL\n"); 188 return EINVAL; 189 } 190 fp = &xfer->send.hdr; 191 192 tcode = fp->mode.common.tcode & 0xf; 193 info = &fc->tcode[tcode]; 194 if (info->flag == 0) { 195 printf("invalid tcode=%d\n", tcode); 196 return EINVAL; 197 } 198 if (info->flag & FWTI_REQ) 199 xferq = fc->atq; 200 else 201 xferq = fc->ats; 202 len = info->hdr_len; 203 if (xfer->send.pay_len > MAXREC(fc->maxrec)) { 204 printf("send.pay_len > maxrec\n"); 205 return EINVAL; 206 } 207 if (info->flag & FWTI_BLOCK_STR) 208 len = fp->mode.stream.len; 209 else if (info->flag & FWTI_BLOCK_ASY) 210 len = fp->mode.rresb.len; 211 else 212 len = 0; 213 if (len != xfer->send.pay_len){ 214 printf("len(%d) != send.pay_len(%d) (tcode=%d)\n", 215 len, xfer->send.pay_len, tcode); 216 return EINVAL; 217 } 218 219 if(xferq->start == NULL){ 220 printf("xferq->start == NULL\n"); 221 return EINVAL; 222 } 223 if(!(xferq->queued < xferq->maxq)){ 224 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 225 xferq->queued); 226 return EINVAL; 227 } 228 229 microtime(&xfer->tv); 230 if (info->flag & FWTI_TLABEL) { 231 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 232 return EIO; 233 fp->mode.hdr.tlrt = tl << 2; 234 } 235 236 xfer->tl = tl; 237 xfer->resp = 0; 238 xfer->fc = fc; 239 xfer->q = xferq; 240 xfer->retry_req = fw_asybusy; 241 242 fw_asystart(xfer); 243 return err; 244 } 245 /* 246 * Wakeup blocked process. 247 */ 248 void 249 fw_asy_callback(struct fw_xfer *xfer){ 250 wakeup(xfer); 251 return; 252 } 253 /* 254 * Postpone to later retry. 255 */ 256 void fw_asybusy(struct fw_xfer *xfer){ 257 printf("fw_asybusy\n"); 258 /* 259 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 260 */ 261 DELAY(20000); 262 fw_asystart(xfer); 263 return; 264 } 265 266 /* 267 * Async. request with given xfer structure. 268 */ 269 static void 270 fw_asystart(struct fw_xfer *xfer) 271 { 272 struct firewire_comm *fc = xfer->fc; 273 int s; 274 if(xfer->retry++ >= fc->max_asyretry){ 275 device_printf(fc->bdev, "max_asyretry exceeded\n"); 276 xfer->resp = EBUSY; 277 xfer->state = FWXF_BUSY; 278 xfer->act.hand(xfer); 279 return; 280 } 281 #if 0 /* XXX allow bus explore packets only after bus rest */ 282 if (fc->status < FWBUSEXPLORE) { 283 xfer->resp = EAGAIN; 284 xfer->state = FWXF_BUSY; 285 if (xfer->act.hand != NULL) 286 xfer->act.hand(xfer); 287 return; 288 } 289 #endif 290 s = splfw(); 291 xfer->state = FWXF_INQ; 292 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 293 xfer->q->queued ++; 294 splx(s); 295 /* XXX just queue for mbuf */ 296 if (xfer->mbuf == NULL) 297 xfer->q->start(fc); 298 return; 299 } 300 301 static int 302 firewire_match( device_t dev ) 303 { 304 device_set_desc(dev, "IEEE1394(FireWire) bus"); 305 return -140; 306 } 307 308 static void 309 firewire_xfer_timeout(struct firewire_comm *fc) 310 { 311 struct fw_xfer *xfer; 312 struct tlabel *tl; 313 struct timeval tv; 314 struct timeval split_timeout; 315 int i, s; 316 317 split_timeout.tv_sec = 0; 318 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 319 320 microtime(&tv); 321 timevalsub(&tv, &split_timeout); 322 323 s = splfw(); 324 for (i = 0; i < 0x40; i ++) { 325 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 326 xfer = tl->xfer; 327 if (timevalcmp(&xfer->tv, &tv, >)) 328 /* the rests are newer than this */ 329 break; 330 device_printf(fc->bdev, 331 "split transaction timeout dst=0x%x tl=0x%x state=%d\n", 332 xfer->send.hdr.mode.hdr.dst, i, xfer->state); 333 xfer->resp = ETIMEDOUT; 334 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 335 fw_xfer_done(xfer); 336 } 337 } 338 splx(s); 339 } 340 341 #define WATCHDOC_HZ 10 342 static void 343 firewire_watchdog(void *arg) 344 { 345 struct firewire_comm *fc; 346 static int watchdoc_clock = 0; 347 348 fc = (struct firewire_comm *)arg; 349 350 /* 351 * At boot stage, the device interrupt is disabled and 352 * We encounter a timeout easily. To avoid this, 353 * ignore clock interrupt for a while. 354 */ 355 if (watchdoc_clock > WATCHDOC_HZ * 15) { 356 firewire_xfer_timeout(fc); 357 fc->timeout(fc); 358 } else 359 watchdoc_clock ++; 360 361 callout_reset(&fc->timeout_callout, hz / WATCHDOC_HZ, 362 (void *)firewire_watchdog, (void *)fc); 363 } 364 365 /* 366 * The attach routine. 367 */ 368 static int 369 firewire_attach(device_t dev) 370 { 371 int unit; 372 struct firewire_softc *sc = device_get_softc(dev); 373 device_t pa = device_get_parent(dev); 374 struct firewire_comm *fc; 375 376 fc = (struct firewire_comm *)device_get_softc(pa); 377 sc->fc = fc; 378 fc->status = FWBUSNOTREADY; 379 380 unit = device_get_unit(dev); 381 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 382 383 fwdev_makedev(sc); 384 385 CALLOUT_INIT(&sc->fc->timeout_callout); 386 CALLOUT_INIT(&sc->fc->bmr_callout); 387 CALLOUT_INIT(&sc->fc->retry_probe_callout); 388 CALLOUT_INIT(&sc->fc->busprobe_callout); 389 390 callout_reset(&sc->fc->timeout_callout, hz, 391 (void *)firewire_watchdog, (void *)sc->fc); 392 393 /* Locate our children */ 394 bus_generic_probe(dev); 395 396 /* launch attachement of the added children */ 397 bus_generic_attach(dev); 398 399 /* bus_reset */ 400 fc->ibr(fc); 401 402 return 0; 403 } 404 405 /* 406 * Attach it as child. 407 */ 408 static device_t 409 firewire_add_child(device_t dev, int order, const char *name, int unit) 410 { 411 device_t child; 412 struct firewire_softc *sc; 413 414 sc = (struct firewire_softc *)device_get_softc(dev); 415 child = device_add_child(dev, name, unit); 416 if (child) { 417 device_set_ivars(child, sc->fc); 418 device_probe_and_attach(child); 419 } 420 421 return child; 422 } 423 424 static int 425 firewire_resume(device_t dev) 426 { 427 struct firewire_softc *sc; 428 429 sc = (struct firewire_softc *)device_get_softc(dev); 430 sc->fc->status = FWBUSNOTREADY; 431 432 bus_generic_resume(dev); 433 434 return(0); 435 } 436 437 /* 438 * Dettach it. 439 */ 440 static int 441 firewire_detach(device_t dev) 442 { 443 struct firewire_softc *sc; 444 struct csrdir *csrd, *next; 445 struct fw_device *fwdev, *fwdev_next; 446 int err; 447 448 sc = (struct firewire_softc *)device_get_softc(dev); 449 if ((err = fwdev_destroydev(sc)) != 0) 450 return err; 451 452 if ((err = bus_generic_detach(dev)) != 0) 453 return err; 454 455 callout_stop(&sc->fc->timeout_callout); 456 callout_stop(&sc->fc->bmr_callout); 457 callout_stop(&sc->fc->retry_probe_callout); 458 callout_stop(&sc->fc->busprobe_callout); 459 460 /* XXX xfree_free and untimeout on all xfers */ 461 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 462 fwdev = fwdev_next) { 463 fwdev_next = STAILQ_NEXT(fwdev, link); 464 free(fwdev, M_FW); 465 } 466 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 467 next = SLIST_NEXT(csrd, link); 468 free(csrd, M_FW); 469 } 470 free(sc->fc->topology_map, M_FW); 471 free(sc->fc->speed_map, M_FW); 472 free(sc->fc->crom_src_buf, M_FW); 473 return(0); 474 } 475 #if 0 476 static int 477 firewire_shutdown( device_t dev ) 478 { 479 return 0; 480 } 481 #endif 482 483 484 static void 485 fw_xferq_drain(struct fw_xferq *xferq) 486 { 487 struct fw_xfer *xfer; 488 489 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 490 STAILQ_REMOVE_HEAD(&xferq->q, link); 491 xferq->queued --; 492 xfer->resp = EAGAIN; 493 fw_xfer_done(xfer); 494 } 495 } 496 497 void 498 fw_drain_txq(struct firewire_comm *fc) 499 { 500 int i; 501 502 fw_xferq_drain(fc->atq); 503 fw_xferq_drain(fc->ats); 504 for(i = 0; i < fc->nisodma; i++) 505 fw_xferq_drain(fc->it[i]); 506 } 507 508 static void 509 fw_reset_csr(struct firewire_comm *fc) 510 { 511 int i; 512 513 CSRARC(fc, STATE_CLEAR) 514 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 515 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 516 CSRARC(fc, NODE_IDS) = 0x3f; 517 518 CSRARC(fc, TOPO_MAP + 8) = 0; 519 fc->irm = -1; 520 521 fc->max_node = -1; 522 523 for(i = 2; i < 0x100/4 - 2 ; i++){ 524 CSRARC(fc, SPED_MAP + i * 4) = 0; 525 } 526 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 527 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 528 CSRARC(fc, RESET_START) = 0; 529 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 530 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 531 CSRARC(fc, CYCLE_TIME) = 0x0; 532 CSRARC(fc, BUS_TIME) = 0x0; 533 CSRARC(fc, BUS_MGR_ID) = 0x3f; 534 CSRARC(fc, BANDWIDTH_AV) = 4915; 535 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 536 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 537 CSRARC(fc, IP_CHANNELS) = (1 << 31); 538 539 CSRARC(fc, CONF_ROM) = 0x04 << 24; 540 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 541 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 542 1 << 28 | 0xff << 16 | 0x09 << 8; 543 CSRARC(fc, CONF_ROM + 0xc) = 0; 544 545 /* DV depend CSRs see blue book */ 546 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 547 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 548 549 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 550 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 551 } 552 553 static void 554 fw_init_crom(struct firewire_comm *fc) 555 { 556 struct crom_src *src; 557 558 fc->crom_src_buf = (struct crom_src_buf *) 559 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 560 if (fc->crom_src_buf == NULL) 561 return; 562 563 src = &fc->crom_src_buf->src; 564 bzero(src, sizeof(struct crom_src)); 565 566 /* BUS info sample */ 567 src->hdr.info_len = 4; 568 569 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 570 571 src->businfo.irmc = 1; 572 src->businfo.cmc = 1; 573 src->businfo.isc = 1; 574 src->businfo.bmc = 1; 575 src->businfo.pmc = 0; 576 src->businfo.cyc_clk_acc = 100; 577 src->businfo.max_rec = fc->maxrec; 578 src->businfo.max_rom = MAXROM_4; 579 src->businfo.generation = 1; 580 src->businfo.link_spd = fc->speed; 581 582 src->businfo.eui64.hi = fc->eui.hi; 583 src->businfo.eui64.lo = fc->eui.lo; 584 585 STAILQ_INIT(&src->chunk_list); 586 587 fc->crom_src = src; 588 fc->crom_root = &fc->crom_src_buf->root; 589 } 590 591 static void 592 fw_reset_crom(struct firewire_comm *fc) 593 { 594 struct crom_src_buf *buf; 595 struct crom_src *src; 596 struct crom_chunk *root; 597 598 if (fc->crom_src_buf == NULL) 599 fw_init_crom(fc); 600 601 buf = fc->crom_src_buf; 602 src = fc->crom_src; 603 root = fc->crom_root; 604 605 STAILQ_INIT(&src->chunk_list); 606 607 bzero(root, sizeof(struct crom_chunk)); 608 crom_add_chunk(src, NULL, root, 0); 609 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 610 /* private company_id */ 611 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 612 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 613 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 614 crom_add_simple_text(src, root, &buf->hw, hostname); 615 } 616 617 /* 618 * Called after bus reset. 619 */ 620 void 621 fw_busreset(struct firewire_comm *fc) 622 { 623 struct firewire_dev_comm *fdc; 624 struct crom_src *src; 625 device_t *devlistp; 626 void *newrom; 627 int i, devcnt; 628 629 switch(fc->status){ 630 case FWBUSMGRELECT: 631 callout_stop(&fc->bmr_callout); 632 break; 633 default: 634 break; 635 } 636 fc->status = FWBUSRESET; 637 fw_reset_csr(fc); 638 fw_reset_crom(fc); 639 640 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 641 for( i = 0 ; i < devcnt ; i++) 642 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 643 fdc = device_get_softc(devlistp[i]); 644 if (fdc->post_busreset != NULL) 645 fdc->post_busreset(fdc); 646 } 647 free(devlistp, M_TEMP); 648 } 649 650 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 651 src = &fc->crom_src_buf->src; 652 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 653 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 654 /* bump generation and reload */ 655 src->businfo.generation ++; 656 /* generation must be between 0x2 and 0xF */ 657 if (src->businfo.generation < 2) 658 src->businfo.generation ++; 659 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 660 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 661 } 662 free(newrom, M_FW); 663 } 664 665 /* Call once after reboot */ 666 void fw_init(struct firewire_comm *fc) 667 { 668 int i; 669 struct csrdir *csrd; 670 #ifdef FW_VMACCESS 671 struct fw_xfer *xfer; 672 struct fw_bind *fwb; 673 #endif 674 675 fc->max_asyretry = FW_MAXASYRTY; 676 677 fc->arq->queued = 0; 678 fc->ars->queued = 0; 679 fc->atq->queued = 0; 680 fc->ats->queued = 0; 681 682 fc->arq->buf = NULL; 683 fc->ars->buf = NULL; 684 fc->atq->buf = NULL; 685 fc->ats->buf = NULL; 686 687 fc->arq->flag = 0; 688 fc->ars->flag = 0; 689 fc->atq->flag = 0; 690 fc->ats->flag = 0; 691 692 STAILQ_INIT(&fc->atq->q); 693 STAILQ_INIT(&fc->ats->q); 694 695 for( i = 0 ; i < fc->nisodma ; i ++ ){ 696 fc->it[i]->queued = 0; 697 fc->ir[i]->queued = 0; 698 699 fc->it[i]->start = NULL; 700 fc->ir[i]->start = NULL; 701 702 fc->it[i]->buf = NULL; 703 fc->ir[i]->buf = NULL; 704 705 fc->it[i]->flag = FWXFERQ_STREAM; 706 fc->ir[i]->flag = FWXFERQ_STREAM; 707 708 STAILQ_INIT(&fc->it[i]->q); 709 STAILQ_INIT(&fc->ir[i]->q); 710 711 STAILQ_INIT(&fc->it[i]->binds); 712 STAILQ_INIT(&fc->ir[i]->binds); 713 } 714 715 fc->arq->maxq = FWMAXQUEUE; 716 fc->ars->maxq = FWMAXQUEUE; 717 fc->atq->maxq = FWMAXQUEUE; 718 fc->ats->maxq = FWMAXQUEUE; 719 720 for( i = 0 ; i < fc->nisodma ; i++){ 721 fc->ir[i]->maxq = FWMAXQUEUE; 722 fc->it[i]->maxq = FWMAXQUEUE; 723 } 724 /* Initialize csr registers */ 725 fc->topology_map = (struct fw_topology_map *)malloc( 726 sizeof(struct fw_topology_map), 727 M_FW, M_NOWAIT | M_ZERO); 728 fc->speed_map = (struct fw_speed_map *)malloc( 729 sizeof(struct fw_speed_map), 730 M_FW, M_NOWAIT | M_ZERO); 731 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 732 CSRARC(fc, TOPO_MAP + 4) = 1; 733 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 734 CSRARC(fc, SPED_MAP + 4) = 1; 735 736 STAILQ_INIT(&fc->devices); 737 STAILQ_INIT(&fc->pending); 738 739 /* Initialize csr ROM work space */ 740 SLIST_INIT(&fc->ongocsr); 741 SLIST_INIT(&fc->csrfree); 742 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 743 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 744 if(csrd == NULL) break; 745 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 746 } 747 748 /* Initialize Async handlers */ 749 STAILQ_INIT(&fc->binds); 750 for( i = 0 ; i < 0x40 ; i++){ 751 STAILQ_INIT(&fc->tlabels[i]); 752 } 753 754 /* DV depend CSRs see blue book */ 755 #if 0 756 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 757 CSRARC(fc, oPCR) = 0x8000007a; 758 for(i = 4 ; i < 0x7c/4 ; i+=4){ 759 CSRARC(fc, i + oPCR) = 0x8000007a; 760 } 761 762 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 763 CSRARC(fc, iPCR) = 0x803f0000; 764 for(i = 4 ; i < 0x7c/4 ; i+=4){ 765 CSRARC(fc, i + iPCR) = 0x0; 766 } 767 #endif 768 769 fc->crom_src_buf = NULL; 770 771 #ifdef FW_VMACCESS 772 xfer = fw_xfer_alloc(); 773 if(xfer == NULL) return; 774 775 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 776 if(fwb == NULL){ 777 fw_xfer_free(xfer); 778 } 779 xfer->act.hand = fw_vmaccess; 780 xfer->fc = fc; 781 xfer->sc = NULL; 782 783 fwb->start_hi = 0x2; 784 fwb->start_lo = 0; 785 fwb->addrlen = 0xffffffff; 786 fwb->xfer = xfer; 787 fw_bindadd(fc, fwb); 788 #endif 789 } 790 791 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 792 ((fwb)->end < (addr))?1:0) 793 794 /* 795 * To lookup binded process from IEEE1394 address. 796 */ 797 struct fw_bind * 798 fw_bindlookup(struct firewire_comm *fc, u_int16_t dest_hi, u_int32_t dest_lo) 799 { 800 u_int64_t addr; 801 struct fw_bind *tfw; 802 803 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 804 STAILQ_FOREACH(tfw, &fc->binds, fclist) 805 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0) 806 return(tfw); 807 return(NULL); 808 } 809 810 /* 811 * To bind IEEE1394 address block to process. 812 */ 813 int 814 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 815 { 816 struct fw_bind *tfw, *prev = NULL; 817 818 if (fwb->start > fwb->end) { 819 printf("%s: invalid range\n", __FUNCTION__); 820 return EINVAL; 821 } 822 823 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 824 if (fwb->end < tfw->start) 825 break; 826 prev = tfw; 827 } 828 if (prev == NULL) { 829 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 830 goto out; 831 } 832 if (prev->end < fwb->start) { 833 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 834 goto out; 835 } 836 837 printf("%s: bind failed\n", __FUNCTION__); 838 return (EBUSY); 839 840 out: 841 if (fwb->act_type == FWACT_CH) 842 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 843 return (0); 844 } 845 846 /* 847 * To free IEEE1394 address block. 848 */ 849 int 850 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 851 { 852 #if 0 853 struct fw_xfer *xfer, *next; 854 #endif 855 struct fw_bind *tfw; 856 int s; 857 858 s = splfw(); 859 STAILQ_FOREACH(tfw, &fc->binds, fclist) 860 if (tfw == fwb) { 861 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 862 goto found; 863 } 864 865 printf("%s: no such bind\n", __FUNCTION__); 866 splx(s); 867 return (1); 868 found: 869 #if 0 870 /* shall we do this? */ 871 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 872 next = STAILQ_NEXT(xfer, link); 873 fw_xfer_free(xfer); 874 } 875 STAILQ_INIT(&fwb->xferlist); 876 #endif 877 878 splx(s); 879 return 0; 880 } 881 882 /* 883 * To free transaction label. 884 */ 885 static void 886 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 887 { 888 struct tlabel *tl; 889 int s = splfw(); 890 891 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 892 tl = STAILQ_NEXT(tl, link)){ 893 if(tl->xfer == xfer){ 894 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 895 free(tl, M_FW); 896 splx(s); 897 return; 898 } 899 } 900 splx(s); 901 return; 902 } 903 904 /* 905 * To obtain XFER structure by transaction label. 906 */ 907 static struct fw_xfer * 908 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 909 { 910 struct fw_xfer *xfer; 911 struct tlabel *tl; 912 int s = splfw(); 913 914 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 915 tl = STAILQ_NEXT(tl, link)){ 916 if(tl->xfer->send.hdr.mode.hdr.dst == node){ 917 xfer = tl->xfer; 918 splx(s); 919 if (firewire_debug > 2) 920 printf("fw_tl2xfer: found tl=%d\n", tlabel); 921 return(xfer); 922 } 923 } 924 if (firewire_debug > 1) 925 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 926 splx(s); 927 return(NULL); 928 } 929 930 /* 931 * To allocate IEEE1394 XFER structure. 932 */ 933 struct fw_xfer * 934 fw_xfer_alloc(struct malloc_type *type) 935 { 936 struct fw_xfer *xfer; 937 938 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 939 if (xfer == NULL) 940 return xfer; 941 942 xfer->malloc = type; 943 944 return xfer; 945 } 946 947 struct fw_xfer * 948 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 949 { 950 struct fw_xfer *xfer; 951 952 xfer = fw_xfer_alloc(type); 953 xfer->send.pay_len = send_len; 954 xfer->recv.pay_len = recv_len; 955 if (xfer == NULL) 956 return(NULL); 957 if (send_len > 0) { 958 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 959 if (xfer->send.payload == NULL) { 960 fw_xfer_free(xfer); 961 return(NULL); 962 } 963 } 964 if (recv_len > 0) { 965 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 966 if (xfer->recv.payload == NULL) { 967 if (xfer->send.payload != NULL) 968 free(xfer->send.payload, type); 969 fw_xfer_free(xfer); 970 return(NULL); 971 } 972 } 973 return(xfer); 974 } 975 976 /* 977 * IEEE1394 XFER post process. 978 */ 979 void 980 fw_xfer_done(struct fw_xfer *xfer) 981 { 982 if (xfer->act.hand == NULL) { 983 printf("act.hand == NULL\n"); 984 return; 985 } 986 987 if (xfer->fc == NULL) 988 panic("fw_xfer_done: why xfer->fc is NULL?"); 989 990 if (xfer->fc->status != FWBUSRESET) 991 xfer->act.hand(xfer); 992 else { 993 printf("fw_xfer_done: pending\n"); 994 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 995 } 996 } 997 998 void 999 fw_xfer_unload(struct fw_xfer* xfer) 1000 { 1001 int s; 1002 1003 if(xfer == NULL ) return; 1004 if(xfer->state == FWXF_INQ){ 1005 printf("fw_xfer_free FWXF_INQ\n"); 1006 s = splfw(); 1007 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1008 xfer->q->queued --; 1009 splx(s); 1010 } 1011 if (xfer->fc != NULL) { 1012 #if 1 1013 if(xfer->state == FWXF_START) 1014 /* 1015 * This could happen if: 1016 * 1. We call fwohci_arcv() before fwohci_txd(). 1017 * 2. firewire_watch() is called. 1018 */ 1019 printf("fw_xfer_free FWXF_START\n"); 1020 #endif 1021 fw_tl_free(xfer->fc, xfer); 1022 } 1023 xfer->state = FWXF_INIT; 1024 xfer->resp = 0; 1025 xfer->retry = 0; 1026 } 1027 /* 1028 * To free IEEE1394 XFER structure. 1029 */ 1030 void 1031 fw_xfer_free_buf( struct fw_xfer* xfer) 1032 { 1033 if (xfer == NULL) { 1034 printf("%s: xfer == NULL\n", __FUNCTION__); 1035 return; 1036 } 1037 fw_xfer_unload(xfer); 1038 if(xfer->send.payload != NULL){ 1039 free(xfer->send.payload, xfer->malloc); 1040 } 1041 if(xfer->recv.payload != NULL){ 1042 free(xfer->recv.payload, xfer->malloc); 1043 } 1044 free(xfer, xfer->malloc); 1045 } 1046 1047 void 1048 fw_xfer_free( struct fw_xfer* xfer) 1049 { 1050 if (xfer == NULL) { 1051 printf("%s: xfer == NULL\n", __FUNCTION__); 1052 return; 1053 } 1054 fw_xfer_unload(xfer); 1055 free(xfer, xfer->malloc); 1056 } 1057 1058 void 1059 fw_asy_callback_free(struct fw_xfer *xfer) 1060 { 1061 #if 0 1062 printf("asyreq done state=%d resp=%d\n", 1063 xfer->state, xfer->resp); 1064 #endif 1065 fw_xfer_free(xfer); 1066 } 1067 1068 /* 1069 * To configure PHY. 1070 */ 1071 static void 1072 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1073 { 1074 struct fw_xfer *xfer; 1075 struct fw_pkt *fp; 1076 1077 fc->status = FWBUSPHYCONF; 1078 1079 xfer = fw_xfer_alloc(M_FWXFER); 1080 if (xfer == NULL) 1081 return; 1082 xfer->fc = fc; 1083 xfer->retry_req = fw_asybusy; 1084 xfer->act.hand = fw_asy_callback_free; 1085 1086 fp = &xfer->send.hdr; 1087 fp->mode.ld[1] = 0; 1088 if (root_node >= 0) 1089 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1090 if (gap_count >= 0) 1091 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1092 fp->mode.ld[2] = ~fp->mode.ld[1]; 1093 /* XXX Dangerous, how to pass PHY packet to device driver */ 1094 fp->mode.common.tcode |= FWTCODE_PHY; 1095 1096 if (firewire_debug) 1097 printf("send phy_config root_node=%d gap_count=%d\n", 1098 root_node, gap_count); 1099 fw_asyreq(fc, -1, xfer); 1100 } 1101 1102 #if 0 1103 /* 1104 * Dump self ID. 1105 */ 1106 static void 1107 fw_print_sid(u_int32_t sid) 1108 { 1109 union fw_self_id *s; 1110 s = (union fw_self_id *) &sid; 1111 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1112 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1113 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1114 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1115 s->p0.power_class, s->p0.port0, s->p0.port1, 1116 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1117 } 1118 #endif 1119 1120 /* 1121 * To receive self ID. 1122 */ 1123 void fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) 1124 { 1125 u_int32_t *p; 1126 union fw_self_id *self_id; 1127 u_int i, j, node, c_port = 0, i_branch = 0; 1128 1129 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1130 fc->status = FWBUSINIT; 1131 fc->max_node = fc->nodeid & 0x3f; 1132 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1133 fc->status = FWBUSCYMELECT; 1134 fc->topology_map->crc_len = 2; 1135 fc->topology_map->generation ++; 1136 fc->topology_map->self_id_count = 0; 1137 fc->topology_map->node_count = 0; 1138 fc->speed_map->generation ++; 1139 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1140 self_id = &fc->topology_map->self_id[0]; 1141 for(i = 0; i < fc->sid_cnt; i ++){ 1142 if (sid[1] != ~sid[0]) { 1143 printf("fw_sidrcv: invalid self-id packet\n"); 1144 sid += 2; 1145 continue; 1146 } 1147 *self_id = *((union fw_self_id *)sid); 1148 fc->topology_map->crc_len++; 1149 if(self_id->p0.sequel == 0){ 1150 fc->topology_map->node_count ++; 1151 c_port = 0; 1152 #if 0 1153 fw_print_sid(sid[0]); 1154 #endif 1155 node = self_id->p0.phy_id; 1156 if(fc->max_node < node){ 1157 fc->max_node = self_id->p0.phy_id; 1158 } 1159 /* XXX I'm not sure this is the right speed_map */ 1160 fc->speed_map->speed[node][node] 1161 = self_id->p0.phy_speed; 1162 for (j = 0; j < node; j ++) { 1163 fc->speed_map->speed[j][node] 1164 = fc->speed_map->speed[node][j] 1165 = min(fc->speed_map->speed[j][j], 1166 self_id->p0.phy_speed); 1167 } 1168 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1169 (self_id->p0.link_active && self_id->p0.contender)) { 1170 fc->irm = self_id->p0.phy_id; 1171 } 1172 if(self_id->p0.port0 >= 0x2){ 1173 c_port++; 1174 } 1175 if(self_id->p0.port1 >= 0x2){ 1176 c_port++; 1177 } 1178 if(self_id->p0.port2 >= 0x2){ 1179 c_port++; 1180 } 1181 } 1182 if(c_port > 2){ 1183 i_branch += (c_port - 2); 1184 } 1185 sid += 2; 1186 self_id++; 1187 fc->topology_map->self_id_count ++; 1188 } 1189 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1190 /* CRC */ 1191 fc->topology_map->crc = fw_crc16( 1192 (u_int32_t *)&fc->topology_map->generation, 1193 fc->topology_map->crc_len * 4); 1194 fc->speed_map->crc = fw_crc16( 1195 (u_int32_t *)&fc->speed_map->generation, 1196 fc->speed_map->crc_len * 4); 1197 /* byteswap and copy to CSR */ 1198 p = (u_int32_t *)fc->topology_map; 1199 for (i = 0; i <= fc->topology_map->crc_len; i++) 1200 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1201 p = (u_int32_t *)fc->speed_map; 1202 CSRARC(fc, SPED_MAP) = htonl(*p++); 1203 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1204 /* don't byte-swap u_int8_t array */ 1205 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1206 1207 fc->max_hop = fc->max_node - i_branch; 1208 printf(", maxhop <= %d", fc->max_hop); 1209 1210 if(fc->irm == -1 ){ 1211 printf(", Not found IRM capable node"); 1212 }else{ 1213 printf(", cable IRM = %d", fc->irm); 1214 if (fc->irm == fc->nodeid) 1215 printf(" (me)"); 1216 } 1217 printf("\n"); 1218 1219 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1220 if (fc->irm == fc->nodeid) { 1221 fc->status = FWBUSMGRDONE; 1222 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1223 fw_bmr(fc); 1224 } else { 1225 fc->status = FWBUSMGRELECT; 1226 callout_reset(&fc->bmr_callout, hz/8, 1227 (void *)fw_try_bmr, (void *)fc); 1228 } 1229 } else 1230 fc->status = FWBUSMGRDONE; 1231 1232 callout_reset(&fc->busprobe_callout, hz/4, 1233 (void *)fw_bus_probe, (void *)fc); 1234 } 1235 1236 /* 1237 * To probe devices on the IEEE1394 bus. 1238 */ 1239 static void 1240 fw_bus_probe(struct firewire_comm *fc) 1241 { 1242 int s; 1243 struct fw_device *fwdev; 1244 1245 s = splfw(); 1246 fc->status = FWBUSEXPLORE; 1247 fc->retry_count = 0; 1248 1249 /* Invalidate all devices, just after bus reset. */ 1250 STAILQ_FOREACH(fwdev, &fc->devices, link) 1251 if (fwdev->status != FWDEVINVAL) { 1252 fwdev->status = FWDEVINVAL; 1253 fwdev->rcnt = 0; 1254 } 1255 1256 fc->ongonode = 0; 1257 fc->ongoaddr = CSRROMOFF; 1258 fc->ongodev = NULL; 1259 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1260 fw_bus_explore(fc); 1261 splx(s); 1262 } 1263 1264 /* 1265 * To collect device informations on the IEEE1394 bus. 1266 */ 1267 static void 1268 fw_bus_explore(struct firewire_comm *fc ) 1269 { 1270 int err = 0; 1271 struct fw_device *fwdev, *pfwdev, *tfwdev; 1272 u_int32_t addr; 1273 struct fw_xfer *xfer; 1274 struct fw_pkt *fp; 1275 1276 if(fc->status != FWBUSEXPLORE) 1277 return; 1278 1279 loop: 1280 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1281 1282 if(fc->ongonode > fc->max_node) goto done; 1283 if(fc->ongonode >= 0x3f) goto done; 1284 1285 /* check link */ 1286 /* XXX we need to check phy_id first */ 1287 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1288 if (firewire_debug) 1289 printf("node%d: link down\n", fc->ongonode); 1290 fc->ongonode++; 1291 goto loop; 1292 } 1293 1294 if(fc->ongoaddr <= CSRROMOFF && 1295 fc->ongoeui.hi == 0xffffffff && 1296 fc->ongoeui.lo == 0xffffffff ){ 1297 fc->ongoaddr = CSRROMOFF; 1298 addr = 0xf0000000 | fc->ongoaddr; 1299 }else if(fc->ongoeui.hi == 0xffffffff ){ 1300 fc->ongoaddr = CSRROMOFF + 0xc; 1301 addr = 0xf0000000 | fc->ongoaddr; 1302 }else if(fc->ongoeui.lo == 0xffffffff ){ 1303 fc->ongoaddr = CSRROMOFF + 0x10; 1304 addr = 0xf0000000 | fc->ongoaddr; 1305 }else if(fc->ongodev == NULL){ 1306 STAILQ_FOREACH(fwdev, &fc->devices, link) 1307 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1308 break; 1309 if(fwdev != NULL){ 1310 fwdev->dst = fc->ongonode; 1311 fwdev->status = FWDEVINIT; 1312 fc->ongodev = fwdev; 1313 fc->ongoaddr = CSRROMOFF; 1314 addr = 0xf0000000 | fc->ongoaddr; 1315 goto dorequest; 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 dorequest: 1352 #if 0 1353 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1354 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1355 fw_bus_explore_callback); 1356 if(xfer == NULL) goto done; 1357 #else 1358 xfer = fw_xfer_alloc(M_FWXFER); 1359 if(xfer == NULL){ 1360 goto done; 1361 } 1362 xfer->send.spd = 0; 1363 fp = &xfer->send.hdr; 1364 fp->mode.rreqq.dest_hi = 0xffff; 1365 fp->mode.rreqq.tlrt = 0; 1366 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1367 fp->mode.rreqq.pri = 0; 1368 fp->mode.rreqq.src = 0; 1369 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode; 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; 1383 done: 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 */ 1394 struct fw_xfer * 1395 asyreqq(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(M_FWXFER); 1404 if (xfer == NULL) 1405 return NULL; 1406 1407 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */ 1408 fp = &xfer->send.hdr; 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 fp->mode.rreqq.dst = addr_hi >> 16; 1420 fp->mode.rreqq.dest_lo = addr_lo; 1421 xfer->act.hand = hand; 1422 1423 err = fw_asyreq(fc, -1, xfer); 1424 if(err){ 1425 fw_xfer_free( xfer); 1426 return NULL; 1427 } 1428 return xfer; 1429 } 1430 1431 /* 1432 * Callback for the IEEE1394 bus information collection. 1433 */ 1434 static void 1435 fw_bus_explore_callback(struct fw_xfer *xfer) 1436 { 1437 struct firewire_comm *fc; 1438 struct fw_pkt *sfp,*rfp; 1439 struct csrhdr *chdr; 1440 struct csrdir *csrd; 1441 struct csrreg *csrreg; 1442 u_int32_t offset; 1443 1444 1445 if(xfer == NULL) { 1446 printf("xfer == NULL\n"); 1447 return; 1448 } 1449 fc = xfer->fc; 1450 1451 if (firewire_debug) 1452 printf("node%d: callback addr=0x%x\n", 1453 fc->ongonode, fc->ongoaddr); 1454 1455 if(xfer->resp != 0){ 1456 printf("node%d: resp=%d addr=0x%x\n", 1457 fc->ongonode, xfer->resp, fc->ongoaddr); 1458 goto errnode; 1459 } 1460 1461 sfp = &xfer->send.hdr; 1462 rfp = &xfer->recv.hdr; 1463 #if 0 1464 { 1465 u_int32_t *qld; 1466 int i; 1467 qld = (u_int32_t *)xfer->recv.buf; 1468 printf("len:%d\n", xfer->recv.len); 1469 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1470 printf("0x%08x ", rfp->mode.ld[i/4]); 1471 if((i % 16) == 15) printf("\n"); 1472 } 1473 if((i % 16) != 15) printf("\n"); 1474 } 1475 #endif 1476 if(fc->ongodev == NULL){ 1477 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1478 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1479 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1480 /* If CSR is minimal confinguration, more investgation is not needed. */ 1481 if(chdr->info_len == 1){ 1482 if (firewire_debug) 1483 printf("node%d: minimal config\n", 1484 fc->ongonode); 1485 goto nextnode; 1486 }else{ 1487 fc->ongoaddr = CSRROMOFF + 0xc; 1488 } 1489 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1490 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1491 fc->ongoaddr = CSRROMOFF + 0x10; 1492 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1493 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1494 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1495 if (firewire_debug) 1496 printf("node%d: eui64 is zero.\n", 1497 fc->ongonode); 1498 goto nextnode; 1499 } 1500 fc->ongoaddr = CSRROMOFF; 1501 } 1502 }else{ 1503 if (fc->ongoaddr == CSRROMOFF && 1504 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1505 fc->ongodev->status = FWDEVATTACHED; 1506 goto nextnode; 1507 } 1508 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1509 if(fc->ongoaddr > fc->ongodev->rommax){ 1510 fc->ongodev->rommax = fc->ongoaddr; 1511 } 1512 csrd = SLIST_FIRST(&fc->ongocsr); 1513 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1514 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1515 offset = CSRROMOFF; 1516 }else{ 1517 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1518 offset = csrd->off; 1519 } 1520 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1521 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1522 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1523 csrd = SLIST_FIRST(&fc->csrfree); 1524 if(csrd == NULL){ 1525 goto nextnode; 1526 }else{ 1527 csrd->ongoaddr = fc->ongoaddr; 1528 fc->ongoaddr += csrreg->val * 4; 1529 csrd->off = fc->ongoaddr; 1530 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1531 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1532 goto nextaddr; 1533 } 1534 } 1535 } 1536 fc->ongoaddr += 4; 1537 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1538 (fc->ongodev->rommax < 0x414)){ 1539 if(fc->ongodev->rommax <= 0x414){ 1540 csrd = SLIST_FIRST(&fc->csrfree); 1541 if(csrd == NULL) goto nextnode; 1542 csrd->off = fc->ongoaddr; 1543 csrd->ongoaddr = fc->ongoaddr; 1544 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1545 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1546 } 1547 goto nextaddr; 1548 } 1549 1550 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1551 if(csrd == NULL){ 1552 goto nextnode; 1553 }; 1554 fc->ongoaddr = csrd->ongoaddr + 4; 1555 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1556 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1557 csrd = SLIST_FIRST(&fc->ongocsr); 1558 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1559 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1560 offset = CSRROMOFF; 1561 }else{ 1562 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1563 offset = csrd->off; 1564 } 1565 } 1566 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1567 goto nextnode; 1568 } 1569 } 1570 nextaddr: 1571 fw_xfer_free( xfer); 1572 fw_bus_explore(fc); 1573 return; 1574 errnode: 1575 fc->retry_count++; 1576 if (fc->ongodev != NULL) 1577 fc->ongodev->status = FWDEVINVAL; 1578 nextnode: 1579 fw_xfer_free( xfer); 1580 fc->ongonode++; 1581 /* housekeeping work space */ 1582 fc->ongoaddr = CSRROMOFF; 1583 fc->ongodev = NULL; 1584 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1585 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1586 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1587 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1588 } 1589 fw_bus_explore(fc); 1590 return; 1591 } 1592 1593 /* 1594 * To attach sub-devices layer onto IEEE1394 bus. 1595 */ 1596 static void 1597 fw_attach_dev(struct firewire_comm *fc) 1598 { 1599 struct fw_device *fwdev, *next; 1600 struct fw_xfer *xfer; 1601 int i, err; 1602 device_t *devlistp; 1603 int devcnt; 1604 struct firewire_dev_comm *fdc; 1605 1606 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1607 next = STAILQ_NEXT(fwdev, link); 1608 if (fwdev->status == FWDEVINIT) { 1609 fwdev->status = FWDEVATTACHED; 1610 } else if (fwdev->status == FWDEVINVAL) { 1611 fwdev->rcnt ++; 1612 if (fwdev->rcnt > hold_count) { 1613 /* 1614 * Remove devices which have not been seen 1615 * for a while. 1616 */ 1617 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1618 link); 1619 free(fwdev, M_FW); 1620 } 1621 } 1622 } 1623 1624 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1625 if( err != 0 ) 1626 return; 1627 for( i = 0 ; i < devcnt ; i++){ 1628 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1629 fdc = device_get_softc(devlistp[i]); 1630 if (fdc->post_explore != NULL) 1631 fdc->post_explore(fdc); 1632 } 1633 } 1634 free(devlistp, M_TEMP); 1635 1636 /* call pending handlers */ 1637 i = 0; 1638 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1639 STAILQ_REMOVE_HEAD(&fc->pending, link); 1640 i++; 1641 if (xfer->act.hand) 1642 xfer->act.hand(xfer); 1643 } 1644 if (i > 0) 1645 printf("fw_attach_dev: %d pending handlers called\n", i); 1646 if (fc->retry_count > 0) { 1647 printf("probe failed for %d node\n", fc->retry_count); 1648 #if 0 1649 callout_reset(&fc->retry_probe_callout, hz*2, 1650 (void *)fc->ibr, (void *)fc); 1651 #endif 1652 } 1653 return; 1654 } 1655 1656 /* 1657 * To allocate uniq transaction label. 1658 */ 1659 static int 1660 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1661 { 1662 u_int i; 1663 struct tlabel *tl, *tmptl; 1664 int s; 1665 static u_int32_t label = 0; 1666 1667 s = splfw(); 1668 for( i = 0 ; i < 0x40 ; i ++){ 1669 label = (label + 1) & 0x3f; 1670 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1671 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1672 if (tmptl->xfer->send.hdr.mode.hdr.dst == 1673 xfer->send.hdr.mode.hdr.dst) 1674 break; 1675 } 1676 if(tmptl == NULL) { 1677 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1678 if (tl == NULL) { 1679 splx(s); 1680 return (-1); 1681 } 1682 tl->xfer = xfer; 1683 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1684 splx(s); 1685 if (firewire_debug > 1) 1686 printf("fw_get_tlabel: dst=%d tl=%d\n", 1687 xfer->send.hdr.mode.hdr.dst, label); 1688 return(label); 1689 } 1690 } 1691 splx(s); 1692 1693 printf("fw_get_tlabel: no free tlabel\n"); 1694 return(-1); 1695 } 1696 1697 static void 1698 fw_rcv_copy(struct fw_rcv_buf *rb) 1699 { 1700 struct fw_pkt *pkt; 1701 u_char *p; 1702 struct tcode_info *tinfo; 1703 u_int res, i, len, plen; 1704 1705 rb->xfer->recv.spd -= rb->spd; 1706 1707 pkt = (struct fw_pkt *)rb->vec->iov_base; 1708 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1709 1710 /* Copy header */ 1711 p = (u_char *)&rb->xfer->recv.hdr; 1712 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1713 (u_char *)rb->vec->iov_base += tinfo->hdr_len; 1714 rb->vec->iov_len -= tinfo->hdr_len; 1715 1716 /* Copy payload */ 1717 p = (u_char *)rb->xfer->recv.payload; 1718 res = rb->xfer->recv.pay_len; 1719 1720 /* special handling for RRESQ */ 1721 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1722 p != NULL && res >= sizeof(u_int32_t)) { 1723 *(u_int32_t *)p = pkt->mode.rresq.data; 1724 rb->xfer->recv.pay_len = sizeof(u_int32_t); 1725 return; 1726 } 1727 1728 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1729 return; 1730 1731 plen = pkt->mode.rresb.len; 1732 1733 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1734 len = MIN(rb->vec->iov_len, plen); 1735 if (res < len) { 1736 printf("rcv buffer(%d) is %d bytes short.\n", 1737 rb->xfer->recv.pay_len, len - res); 1738 len = res; 1739 } 1740 bcopy(rb->vec->iov_base, p, len); 1741 p += len; 1742 res -= len; 1743 plen -= len; 1744 if (res == 0 || plen == 0) 1745 break; 1746 } 1747 rb->xfer->recv.pay_len -= res; 1748 1749 } 1750 1751 /* 1752 * Generic packet receving process. 1753 */ 1754 void 1755 fw_rcv(struct fw_rcv_buf *rb) 1756 { 1757 struct fw_pkt *fp, *resfp; 1758 struct fw_bind *bind; 1759 int tcode, s; 1760 int i, len, oldstate; 1761 #if 0 1762 { 1763 u_int32_t *qld; 1764 int i; 1765 qld = (u_int32_t *)buf; 1766 printf("spd %d len:%d\n", spd, len); 1767 for( i = 0 ; i <= len && i < 32; i+= 4){ 1768 printf("0x%08x ", ntohl(qld[i/4])); 1769 if((i % 16) == 15) printf("\n"); 1770 } 1771 if((i % 16) != 15) printf("\n"); 1772 } 1773 #endif 1774 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1775 tcode = fp->mode.common.tcode; 1776 switch (tcode) { 1777 case FWTCODE_WRES: 1778 case FWTCODE_RRESQ: 1779 case FWTCODE_RRESB: 1780 case FWTCODE_LRES: 1781 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1782 fp->mode.hdr.tlrt >> 2); 1783 if(rb->xfer == NULL) { 1784 printf("fw_rcv: unknown response " 1785 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n", 1786 tcode, 1787 fp->mode.hdr.src, 1788 fp->mode.hdr.tlrt >> 2, 1789 fp->mode.hdr.tlrt & 3, 1790 fp->mode.rresq.data); 1791 #if 1 1792 printf("try ad-hoc work around!!\n"); 1793 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1794 (fp->mode.hdr.tlrt >> 2)^3); 1795 if (rb->xfer == NULL) { 1796 printf("no use...\n"); 1797 goto err; 1798 } 1799 #else 1800 goto err; 1801 #endif 1802 } 1803 fw_rcv_copy(rb); 1804 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1805 rb->xfer->resp = EIO; 1806 else 1807 rb->xfer->resp = 0; 1808 /* make sure the packet is drained in AT queue */ 1809 oldstate = rb->xfer->state; 1810 rb->xfer->state = FWXF_RCVD; 1811 switch (oldstate) { 1812 case FWXF_SENT: 1813 fw_xfer_done(rb->xfer); 1814 break; 1815 case FWXF_START: 1816 #if 0 1817 if (firewire_debug) 1818 printf("not sent yet tl=%x\n", rb->xfer->tl); 1819 #endif 1820 break; 1821 default: 1822 printf("unexpected state %d\n", rb->xfer->state); 1823 } 1824 return; 1825 case FWTCODE_WREQQ: 1826 case FWTCODE_WREQB: 1827 case FWTCODE_RREQQ: 1828 case FWTCODE_RREQB: 1829 case FWTCODE_LREQ: 1830 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1831 fp->mode.rreqq.dest_lo); 1832 if(bind == NULL){ 1833 #if __FreeBSD_version >= 500000 1834 printf("Unknown service addr 0x%04x:0x%08x tcode=%x src=0x%x data=%x\n", 1835 #else 1836 printf("Unknown service addr 0x%04x:0x%08x tcode=%x src=0x%x data=%lx\n", 1837 #endif 1838 fp->mode.wreqq.dest_hi, 1839 fp->mode.wreqq.dest_lo, 1840 tcode, 1841 fp->mode.hdr.src, 1842 ntohl(fp->mode.wreqq.data)); 1843 if (rb->fc->status == FWBUSRESET) { 1844 printf("fw_rcv: cannot respond(bus reset)!\n"); 1845 goto err; 1846 } 1847 rb->xfer = fw_xfer_alloc(M_FWXFER); 1848 if(rb->xfer == NULL){ 1849 return; 1850 } 1851 rb->xfer->send.spd = rb->spd; 1852 rb->xfer->send.pay_len = 0; 1853 resfp = &rb->xfer->send.hdr; 1854 switch (tcode) { 1855 case FWTCODE_WREQQ: 1856 case FWTCODE_WREQB: 1857 resfp->mode.hdr.tcode = FWTCODE_WRES; 1858 break; 1859 case FWTCODE_RREQQ: 1860 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1861 break; 1862 case FWTCODE_RREQB: 1863 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1864 break; 1865 case FWTCODE_LREQ: 1866 resfp->mode.hdr.tcode = FWTCODE_LRES; 1867 break; 1868 } 1869 resfp->mode.hdr.dst = fp->mode.hdr.src; 1870 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1871 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1872 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1873 resfp->mode.rresb.extcode = 0; 1874 resfp->mode.rresb.len = 0; 1875 /* 1876 rb->xfer->act.hand = fw_asy_callback; 1877 */ 1878 rb->xfer->act.hand = fw_xfer_free; 1879 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1880 fw_xfer_free(rb->xfer); 1881 return; 1882 } 1883 goto err; 1884 } 1885 len = 0; 1886 for (i = 0; i < rb->nvec; i ++) 1887 len += rb->vec[i].iov_len; 1888 switch(bind->act_type){ 1889 case FWACT_XFER: 1890 /* splfw()?? */ 1891 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1892 if (rb->xfer == NULL) { 1893 printf("Discard a packet for this bind.\n"); 1894 goto err; 1895 } 1896 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1897 fw_rcv_copy(rb); 1898 if (rb->fc->status != FWBUSRESET) 1899 rb->xfer->act.hand(rb->xfer); 1900 else 1901 STAILQ_INSERT_TAIL(&rb->fc->pending, 1902 rb->xfer, link); 1903 return; 1904 break; 1905 case FWACT_CH: 1906 if(rb->fc->ir[bind->sub]->queued >= 1907 rb->fc->ir[bind->sub]->maxq){ 1908 device_printf(rb->fc->bdev, 1909 "Discard a packet %x %d\n", 1910 bind->sub, 1911 rb->fc->ir[bind->sub]->queued); 1912 goto err; 1913 } 1914 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1915 if (rb->xfer == NULL) { 1916 printf("Discard packet for this bind\n"); 1917 goto err; 1918 } 1919 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1920 fw_rcv_copy(rb); 1921 s = splfw(); 1922 rb->fc->ir[bind->sub]->queued++; 1923 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q, 1924 rb->xfer, link); 1925 splx(s); 1926 1927 wakeup((caddr_t)rb->fc->ir[bind->sub]); 1928 1929 return; 1930 break; 1931 default: 1932 goto err; 1933 break; 1934 } 1935 break; 1936 #if 0 /* shouldn't happen ?? or for GASP */ 1937 case FWTCODE_STREAM: 1938 { 1939 struct fw_xferq *xferq; 1940 1941 xferq = rb->fc->ir[sub]; 1942 #if 0 1943 printf("stream rcv dma %d len %d off %d spd %d\n", 1944 sub, len, off, spd); 1945 #endif 1946 if(xferq->queued >= xferq->maxq) { 1947 printf("receive queue is full\n"); 1948 goto err; 1949 } 1950 /* XXX get xfer from xfer queue, we don't need copy for 1951 per packet mode */ 1952 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1953 vec[0].iov_len); 1954 if (rb->xfer == NULL) goto err; 1955 fw_rcv_copy(rb) 1956 s = splfw(); 1957 xferq->queued++; 1958 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1959 splx(s); 1960 sc = device_get_softc(rb->fc->bdev); 1961 #if __FreeBSD_version >= 500000 1962 if (SEL_WAITING(&xferq->rsel)) 1963 #else 1964 if (&xferq->rsel.si_pid != 0) 1965 #endif 1966 selwakeuppri(&xferq->rsel, FWPRI); 1967 if (xferq->flag & FWXFERQ_WAKEUP) { 1968 xferq->flag &= ~FWXFERQ_WAKEUP; 1969 wakeup((caddr_t)xferq); 1970 } 1971 if (xferq->flag & FWXFERQ_HANDLER) { 1972 xferq->hand(xferq); 1973 } 1974 return; 1975 break; 1976 } 1977 #endif 1978 default: 1979 printf("fw_rcv: unknow tcode %d\n", tcode); 1980 break; 1981 } 1982 err: 1983 return; 1984 } 1985 1986 /* 1987 * Post process for Bus Manager election process. 1988 */ 1989 static void 1990 fw_try_bmr_callback(struct fw_xfer *xfer) 1991 { 1992 struct firewire_comm *fc; 1993 int bmr; 1994 1995 if (xfer == NULL) 1996 return; 1997 fc = xfer->fc; 1998 if (xfer->resp != 0) 1999 goto error; 2000 if (xfer->recv.payload == NULL) 2001 goto error; 2002 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2003 goto error; 2004 2005 bmr = ntohl(xfer->recv.payload[0]); 2006 if (bmr == 0x3f) 2007 bmr = fc->nodeid; 2008 2009 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2010 fw_xfer_free_buf(xfer); 2011 fw_bmr(fc); 2012 return; 2013 2014 error: 2015 device_printf(fc->bdev, "bus manager election failed\n"); 2016 fw_xfer_free_buf(xfer); 2017 } 2018 2019 2020 /* 2021 * To candidate Bus Manager election process. 2022 */ 2023 static void 2024 fw_try_bmr(void *arg) 2025 { 2026 struct fw_xfer *xfer; 2027 struct firewire_comm *fc = (struct firewire_comm *)arg; 2028 struct fw_pkt *fp; 2029 int err = 0; 2030 2031 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2032 if(xfer == NULL){ 2033 return; 2034 } 2035 xfer->send.spd = 0; 2036 fc->status = FWBUSMGRELECT; 2037 2038 fp = &xfer->send.hdr; 2039 fp->mode.lreq.dest_hi = 0xffff; 2040 fp->mode.lreq.tlrt = 0; 2041 fp->mode.lreq.tcode = FWTCODE_LREQ; 2042 fp->mode.lreq.pri = 0; 2043 fp->mode.lreq.src = 0; 2044 fp->mode.lreq.len = 8; 2045 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2046 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2047 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2048 xfer->send.payload[0] = htonl(0x3f); 2049 xfer->send.payload[1] = htonl(fc->nodeid); 2050 xfer->act.hand = fw_try_bmr_callback; 2051 2052 err = fw_asyreq(fc, -1, xfer); 2053 if(err){ 2054 fw_xfer_free_buf(xfer); 2055 return; 2056 } 2057 return; 2058 } 2059 2060 #ifdef FW_VMACCESS 2061 /* 2062 * Software implementation for physical memory block access. 2063 * XXX:Too slow, usef for debug purpose only. 2064 */ 2065 static void 2066 fw_vmaccess(struct fw_xfer *xfer){ 2067 struct fw_pkt *rfp, *sfp = NULL; 2068 u_int32_t *ld = (u_int32_t *)xfer->recv.buf; 2069 2070 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2071 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2072 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2073 if(xfer->resp != 0){ 2074 fw_xfer_free( xfer); 2075 return; 2076 } 2077 if(xfer->recv.buf == NULL){ 2078 fw_xfer_free( xfer); 2079 return; 2080 } 2081 rfp = (struct fw_pkt *)xfer->recv.buf; 2082 switch(rfp->mode.hdr.tcode){ 2083 /* XXX need fix for 64bit arch */ 2084 case FWTCODE_WREQB: 2085 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2086 xfer->send.len = 12; 2087 sfp = (struct fw_pkt *)xfer->send.buf; 2088 bcopy(rfp->mode.wreqb.payload, 2089 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2090 sfp->mode.wres.tcode = FWTCODE_WRES; 2091 sfp->mode.wres.rtcode = 0; 2092 break; 2093 case FWTCODE_WREQQ: 2094 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2095 xfer->send.len = 12; 2096 sfp->mode.wres.tcode = FWTCODE_WRES; 2097 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2098 sfp->mode.wres.rtcode = 0; 2099 break; 2100 case FWTCODE_RREQB: 2101 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2102 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2103 sfp = (struct fw_pkt *)xfer->send.buf; 2104 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2105 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2106 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2107 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2108 sfp->mode.rresb.rtcode = 0; 2109 sfp->mode.rresb.extcode = 0; 2110 break; 2111 case FWTCODE_RREQQ: 2112 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2113 xfer->send.len = 16; 2114 sfp = (struct fw_pkt *)xfer->send.buf; 2115 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2116 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2117 sfp->mode.rresb.rtcode = 0; 2118 break; 2119 default: 2120 fw_xfer_free( xfer); 2121 return; 2122 } 2123 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2124 xfer->dst = ntohs(rfp->mode.hdr.src); 2125 xfer->act.hand = fw_xfer_free; 2126 xfer->retry_req = fw_asybusy; 2127 2128 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2129 sfp->mode.hdr.pri = 0; 2130 2131 fw_asyreq(xfer->fc, -1, xfer); 2132 /**/ 2133 return; 2134 } 2135 #endif 2136 2137 /* 2138 * CRC16 check-sum for IEEE1394 register blocks. 2139 */ 2140 u_int16_t 2141 fw_crc16(u_int32_t *ptr, u_int32_t len){ 2142 u_int32_t i, sum, crc = 0; 2143 int shift; 2144 len = (len + 3) & ~3; 2145 for(i = 0 ; i < len ; i+= 4){ 2146 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2147 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2148 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2149 } 2150 crc &= 0xffff; 2151 } 2152 return((u_int16_t) crc); 2153 } 2154 2155 static int 2156 fw_bmr(struct firewire_comm *fc) 2157 { 2158 struct fw_device fwdev; 2159 union fw_self_id *self_id; 2160 int cmstr; 2161 u_int32_t quad; 2162 2163 /* Check to see if the current root node is cycle master capable */ 2164 self_id = &fc->topology_map->self_id[fc->max_node]; 2165 if (fc->max_node > 0) { 2166 /* XXX check cmc bit of businfo block rather than contender */ 2167 if (self_id->p0.link_active && self_id->p0.contender) 2168 cmstr = fc->max_node; 2169 else { 2170 device_printf(fc->bdev, 2171 "root node is not cycle master capable\n"); 2172 /* XXX shall we be the cycle master? */ 2173 cmstr = fc->nodeid; 2174 /* XXX need bus reset */ 2175 } 2176 } else 2177 cmstr = -1; 2178 2179 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2180 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2181 /* We are not the bus manager */ 2182 printf("\n"); 2183 return(0); 2184 } 2185 printf("(me)\n"); 2186 2187 /* Optimize gapcount */ 2188 if(fc->max_hop <= MAX_GAPHOP ) 2189 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2190 /* If we are the cycle master, nothing to do */ 2191 if (cmstr == fc->nodeid || cmstr == -1) 2192 return 0; 2193 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2194 bzero(&fwdev, sizeof(fwdev)); 2195 fwdev.fc = fc; 2196 fwdev.dst = cmstr; 2197 fwdev.speed = 0; 2198 fwdev.maxrec = 8; /* 512 */ 2199 fwdev.status = FWDEVINIT; 2200 /* Set cmstr bit on the cycle master */ 2201 quad = htonl(1 << 8); 2202 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2203 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2204 2205 return 0; 2206 } 2207 2208 static int 2209 fw_modevent(module_t mode, int type, void *data) 2210 { 2211 int err = 0; 2212 #if __FreeBSD_version >= 500000 2213 static eventhandler_tag fwdev_ehtag = NULL; 2214 #endif 2215 2216 switch (type) { 2217 case MOD_LOAD: 2218 #if __FreeBSD_version >= 500000 2219 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2220 fwdev_clone, 0, 1000); 2221 #endif 2222 break; 2223 case MOD_UNLOAD: 2224 #if __FreeBSD_version >= 500000 2225 if (fwdev_ehtag != NULL) 2226 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2227 #endif 2228 break; 2229 case MOD_SHUTDOWN: 2230 break; 2231 } 2232 return (err); 2233 } 2234 2235 2236 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2237 MODULE_VERSION(firewire, 1); 2238