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 (device_t); 84 static int firewire_attach (device_t); 85 static int firewire_detach (device_t); 86 static int firewire_resume (device_t); 87 #if 0 88 static int firewire_shutdown (device_t); 89 #endif 90 static device_t firewire_add_child (device_t, int, const char *, int); 91 static void fw_try_bmr (void *); 92 static void fw_try_bmr_callback (struct fw_xfer *); 93 static void fw_asystart (struct fw_xfer *); 94 static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *); 95 static void fw_bus_probe (struct firewire_comm *); 96 static void fw_bus_explore (struct firewire_comm *); 97 static void fw_bus_explore_callback (struct fw_xfer *); 98 static void fw_attach_dev (struct firewire_comm *); 99 #ifdef FW_VMACCESS 100 static void fw_vmaccess (struct fw_xfer *); 101 #endif 102 struct fw_xfer *asyreqq (struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 103 u_int32_t, u_int32_t, void (*)(struct fw_xfer *)); 104 static int fw_bmr (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[] = { 122 "S100", "S200", "S400", "S800", 123 "S1600", "S3200", "undef", "undef" 124 }; 125 126 static char *tcode_str[] = { 127 "WREQQ", "WREQB", "WRES", "undef", 128 "RREQQ", "RREQB", "RRESQ", "RRESB", 129 "CYCS", "LREQ", "STREAM", "LRES", 130 "undef", "undef", "PHY", "undef" 131 }; 132 133 /* IEEE-1394a Table C-2 Gap count as a function of hops*/ 134 #define MAX_GAPHOP 15 135 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 136 21, 24, 26, 29, 32, 35, 37, 40}; 137 138 static driver_t firewire_driver = { 139 "firewire", 140 firewire_methods, 141 sizeof(struct firewire_softc), 142 }; 143 144 /* 145 * Lookup fwdev by node id. 146 */ 147 struct fw_device * 148 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 149 { 150 struct fw_device *fwdev; 151 int s; 152 153 s = splfw(); 154 STAILQ_FOREACH(fwdev, &fc->devices, link) 155 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 156 break; 157 splx(s); 158 159 return fwdev; 160 } 161 162 /* 163 * Lookup fwdev by EUI64. 164 */ 165 struct fw_device * 166 fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 167 { 168 struct fw_device *fwdev; 169 int s; 170 171 s = splfw(); 172 STAILQ_FOREACH(fwdev, &fc->devices, link) 173 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 174 break; 175 splx(s); 176 177 if(fwdev == NULL) return NULL; 178 if(fwdev->status == FWDEVINVAL) return NULL; 179 return fwdev; 180 } 181 182 /* 183 * Async. request procedure for userland application. 184 */ 185 int 186 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 187 { 188 int err = 0; 189 struct fw_xferq *xferq; 190 int tl = 0, len; 191 struct fw_pkt *fp; 192 int tcode; 193 struct tcode_info *info; 194 195 if(xfer == NULL) return EINVAL; 196 if(xfer->act.hand == NULL){ 197 printf("act.hand == NULL\n"); 198 return EINVAL; 199 } 200 fp = &xfer->send.hdr; 201 202 tcode = fp->mode.common.tcode & 0xf; 203 info = &fc->tcode[tcode]; 204 if (info->flag == 0) { 205 printf("invalid tcode=%x\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 (xfer->send.pay_len > MAXREC(fc->maxrec)) { 214 printf("send.pay_len > maxrec\n"); 215 return EINVAL; 216 } 217 if (info->flag & FWTI_BLOCK_STR) 218 len = fp->mode.stream.len; 219 else if (info->flag & FWTI_BLOCK_ASY) 220 len = fp->mode.rresb.len; 221 else 222 len = 0; 223 if (len != xfer->send.pay_len){ 224 printf("len(%d) != send.pay_len(%d) %s(%x)\n", 225 len, xfer->send.pay_len, tcode_str[tcode], tcode); 226 return EINVAL; 227 } 228 229 if(xferq->start == NULL){ 230 printf("xferq->start == NULL\n"); 231 return EINVAL; 232 } 233 if(!(xferq->queued < xferq->maxq)){ 234 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 235 xferq->queued); 236 return EINVAL; 237 } 238 239 microtime(&xfer->tv); 240 if (info->flag & FWTI_TLABEL) { 241 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 242 return EIO; 243 fp->mode.hdr.tlrt = tl << 2; 244 } 245 246 xfer->tl = tl; 247 xfer->resp = 0; 248 xfer->fc = fc; 249 xfer->q = xferq; 250 xfer->retry_req = fw_asybusy; 251 252 fw_asystart(xfer); 253 return err; 254 } 255 /* 256 * Wakeup blocked process. 257 */ 258 void 259 fw_asy_callback(struct fw_xfer *xfer){ 260 wakeup(xfer); 261 return; 262 } 263 /* 264 * Postpone to later retry. 265 */ 266 void fw_asybusy(struct fw_xfer *xfer){ 267 printf("fw_asybusy\n"); 268 /* 269 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 270 */ 271 #if 0 272 DELAY(20000); 273 #endif 274 fw_asystart(xfer); 275 return; 276 } 277 278 /* 279 * Async. request with given xfer structure. 280 */ 281 static void 282 fw_asystart(struct fw_xfer *xfer) 283 { 284 struct firewire_comm *fc = xfer->fc; 285 int s; 286 if(xfer->retry++ >= fc->max_asyretry){ 287 device_printf(fc->bdev, "max_asyretry exceeded\n"); 288 xfer->resp = EBUSY; 289 xfer->state = FWXF_BUSY; 290 xfer->act.hand(xfer); 291 return; 292 } 293 #if 0 /* XXX allow bus explore packets only after bus rest */ 294 if (fc->status < FWBUSEXPLORE) { 295 xfer->resp = EAGAIN; 296 xfer->state = FWXF_BUSY; 297 if (xfer->act.hand != NULL) 298 xfer->act.hand(xfer); 299 return; 300 } 301 #endif 302 s = splfw(); 303 xfer->state = FWXF_INQ; 304 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 305 xfer->q->queued ++; 306 splx(s); 307 /* XXX just queue for mbuf */ 308 if (xfer->mbuf == NULL) 309 xfer->q->start(fc); 310 return; 311 } 312 313 static int 314 firewire_match( device_t dev ) 315 { 316 device_set_desc(dev, "IEEE1394(FireWire) bus"); 317 return -140; 318 } 319 320 static void 321 firewire_xfer_timeout(struct firewire_comm *fc) 322 { 323 struct fw_xfer *xfer; 324 struct tlabel *tl; 325 struct timeval tv; 326 struct timeval split_timeout; 327 int i, s; 328 329 split_timeout.tv_sec = 0; 330 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 331 332 microtime(&tv); 333 timevalsub(&tv, &split_timeout); 334 335 s = splfw(); 336 for (i = 0; i < 0x40; i ++) { 337 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 338 xfer = tl->xfer; 339 if (timevalcmp(&xfer->tv, &tv, >)) 340 /* the rests are newer than this */ 341 break; 342 if (xfer->state == FWXF_START) 343 /* not sent yet */ 344 break; 345 device_printf(fc->bdev, 346 "split transaction timeout dst=0x%x tl=0x%x state=%d\n", 347 xfer->send.hdr.mode.hdr.dst, i, xfer->state); 348 xfer->resp = ETIMEDOUT; 349 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 350 fw_xfer_done(xfer); 351 } 352 } 353 splx(s); 354 } 355 356 #define WATCHDOC_HZ 10 357 static void 358 firewire_watchdog(void *arg) 359 { 360 struct firewire_comm *fc; 361 static int watchdoc_clock = 0; 362 363 fc = (struct firewire_comm *)arg; 364 365 /* 366 * At boot stage, the device interrupt is disabled and 367 * We encounter a timeout easily. To avoid this, 368 * ignore clock interrupt for a while. 369 */ 370 if (watchdoc_clock > WATCHDOC_HZ * 15) { 371 firewire_xfer_timeout(fc); 372 fc->timeout(fc); 373 } else 374 watchdoc_clock ++; 375 376 callout_reset(&fc->timeout_callout, hz / WATCHDOC_HZ, 377 (void *)firewire_watchdog, (void *)fc); 378 } 379 380 /* 381 * The attach routine. 382 */ 383 static int 384 firewire_attach(device_t dev) 385 { 386 int unit; 387 struct firewire_softc *sc = device_get_softc(dev); 388 device_t pa = device_get_parent(dev); 389 struct firewire_comm *fc; 390 391 fc = (struct firewire_comm *)device_get_softc(pa); 392 sc->fc = fc; 393 fc->status = FWBUSNOTREADY; 394 395 unit = device_get_unit(dev); 396 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 397 398 fwdev_makedev(sc); 399 400 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 */ 423 static device_t 424 firewire_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 } 438 439 static int 440 firewire_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 */ 455 static int 456 firewire_detach(device_t dev) 457 { 458 struct firewire_softc *sc; 459 struct csrdir *csrd, *next; 460 struct fw_device *fwdev, *fwdev_next; 461 int err; 462 463 sc = (struct firewire_softc *)device_get_softc(dev); 464 if ((err = fwdev_destroydev(sc)) != 0) 465 return err; 466 467 if ((err = bus_generic_detach(dev)) != 0) 468 return err; 469 470 callout_stop(&sc->fc->timeout_callout); 471 callout_stop(&sc->fc->bmr_callout); 472 callout_stop(&sc->fc->retry_probe_callout); 473 callout_stop(&sc->fc->busprobe_callout); 474 475 /* XXX xfree_free and untimeout on all xfers */ 476 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 477 fwdev = fwdev_next) { 478 fwdev_next = STAILQ_NEXT(fwdev, link); 479 free(fwdev, M_FW); 480 } 481 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 482 next = SLIST_NEXT(csrd, link); 483 free(csrd, M_FW); 484 } 485 free(sc->fc->topology_map, M_FW); 486 free(sc->fc->speed_map, M_FW); 487 free(sc->fc->crom_src_buf, M_FW); 488 return(0); 489 } 490 #if 0 491 static int 492 firewire_shutdown( device_t dev ) 493 { 494 return 0; 495 } 496 #endif 497 498 499 static void 500 fw_xferq_drain(struct fw_xferq *xferq) 501 { 502 struct fw_xfer *xfer; 503 504 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 505 STAILQ_REMOVE_HEAD(&xferq->q, link); 506 xferq->queued --; 507 xfer->resp = EAGAIN; 508 fw_xfer_done(xfer); 509 } 510 } 511 512 void 513 fw_drain_txq(struct firewire_comm *fc) 514 { 515 int i; 516 517 fw_xferq_drain(fc->atq); 518 fw_xferq_drain(fc->ats); 519 for(i = 0; i < fc->nisodma; i++) 520 fw_xferq_drain(fc->it[i]); 521 } 522 523 static void 524 fw_reset_csr(struct firewire_comm *fc) 525 { 526 int i; 527 528 CSRARC(fc, STATE_CLEAR) 529 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 530 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 531 CSRARC(fc, NODE_IDS) = 0x3f; 532 533 CSRARC(fc, TOPO_MAP + 8) = 0; 534 fc->irm = -1; 535 536 fc->max_node = -1; 537 538 for(i = 2; i < 0x100/4 - 2 ; i++){ 539 CSRARC(fc, SPED_MAP + i * 4) = 0; 540 } 541 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 542 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 543 CSRARC(fc, RESET_START) = 0; 544 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 545 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 546 CSRARC(fc, CYCLE_TIME) = 0x0; 547 CSRARC(fc, BUS_TIME) = 0x0; 548 CSRARC(fc, BUS_MGR_ID) = 0x3f; 549 CSRARC(fc, BANDWIDTH_AV) = 4915; 550 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 551 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 552 CSRARC(fc, IP_CHANNELS) = (1 << 31); 553 554 CSRARC(fc, CONF_ROM) = 0x04 << 24; 555 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 556 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 557 1 << 28 | 0xff << 16 | 0x09 << 8; 558 CSRARC(fc, CONF_ROM + 0xc) = 0; 559 560 /* DV depend CSRs see blue book */ 561 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 562 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 563 564 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 565 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 566 } 567 568 static void 569 fw_init_crom(struct firewire_comm *fc) 570 { 571 struct crom_src *src; 572 573 fc->crom_src_buf = (struct crom_src_buf *) 574 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 575 if (fc->crom_src_buf == NULL) 576 return; 577 578 src = &fc->crom_src_buf->src; 579 bzero(src, sizeof(struct crom_src)); 580 581 /* BUS info sample */ 582 src->hdr.info_len = 4; 583 584 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 585 586 src->businfo.irmc = 1; 587 src->businfo.cmc = 1; 588 src->businfo.isc = 1; 589 src->businfo.bmc = 1; 590 src->businfo.pmc = 0; 591 src->businfo.cyc_clk_acc = 100; 592 src->businfo.max_rec = fc->maxrec; 593 src->businfo.max_rom = MAXROM_4; 594 src->businfo.generation = 1; 595 src->businfo.link_spd = fc->speed; 596 597 src->businfo.eui64.hi = fc->eui.hi; 598 src->businfo.eui64.lo = fc->eui.lo; 599 600 STAILQ_INIT(&src->chunk_list); 601 602 fc->crom_src = src; 603 fc->crom_root = &fc->crom_src_buf->root; 604 } 605 606 static void 607 fw_reset_crom(struct firewire_comm *fc) 608 { 609 struct crom_src_buf *buf; 610 struct crom_src *src; 611 struct crom_chunk *root; 612 613 if (fc->crom_src_buf == NULL) 614 fw_init_crom(fc); 615 616 buf = fc->crom_src_buf; 617 src = fc->crom_src; 618 root = fc->crom_root; 619 620 STAILQ_INIT(&src->chunk_list); 621 622 bzero(root, sizeof(struct crom_chunk)); 623 crom_add_chunk(src, NULL, root, 0); 624 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 625 /* private company_id */ 626 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 627 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 628 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 629 crom_add_simple_text(src, root, &buf->hw, hostname); 630 } 631 632 /* 633 * Called after bus reset. 634 */ 635 void 636 fw_busreset(struct firewire_comm *fc) 637 { 638 struct firewire_dev_comm *fdc; 639 struct crom_src *src; 640 device_t *devlistp; 641 void *newrom; 642 int i, devcnt; 643 644 switch(fc->status){ 645 case FWBUSMGRELECT: 646 callout_stop(&fc->bmr_callout); 647 break; 648 default: 649 break; 650 } 651 fc->status = FWBUSRESET; 652 fw_reset_csr(fc); 653 fw_reset_crom(fc); 654 655 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 656 for( i = 0 ; i < devcnt ; i++) 657 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 658 fdc = device_get_softc(devlistp[i]); 659 if (fdc->post_busreset != NULL) 660 fdc->post_busreset(fdc); 661 } 662 free(devlistp, M_TEMP); 663 } 664 665 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 666 src = &fc->crom_src_buf->src; 667 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 668 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 669 /* bump generation and reload */ 670 src->businfo.generation ++; 671 /* generation must be between 0x2 and 0xF */ 672 if (src->businfo.generation < 2) 673 src->businfo.generation ++; 674 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 675 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 676 } 677 free(newrom, M_FW); 678 } 679 680 /* Call once after reboot */ 681 void fw_init(struct firewire_comm *fc) 682 { 683 int i; 684 struct csrdir *csrd; 685 #ifdef FW_VMACCESS 686 struct fw_xfer *xfer; 687 struct fw_bind *fwb; 688 #endif 689 690 fc->max_asyretry = FW_MAXASYRTY; 691 692 fc->arq->queued = 0; 693 fc->ars->queued = 0; 694 fc->atq->queued = 0; 695 fc->ats->queued = 0; 696 697 fc->arq->buf = NULL; 698 fc->ars->buf = NULL; 699 fc->atq->buf = NULL; 700 fc->ats->buf = NULL; 701 702 fc->arq->flag = 0; 703 fc->ars->flag = 0; 704 fc->atq->flag = 0; 705 fc->ats->flag = 0; 706 707 STAILQ_INIT(&fc->atq->q); 708 STAILQ_INIT(&fc->ats->q); 709 710 for( i = 0 ; i < fc->nisodma ; i ++ ){ 711 fc->it[i]->queued = 0; 712 fc->ir[i]->queued = 0; 713 714 fc->it[i]->start = NULL; 715 fc->ir[i]->start = NULL; 716 717 fc->it[i]->buf = NULL; 718 fc->ir[i]->buf = NULL; 719 720 fc->it[i]->flag = FWXFERQ_STREAM; 721 fc->ir[i]->flag = FWXFERQ_STREAM; 722 723 STAILQ_INIT(&fc->it[i]->q); 724 STAILQ_INIT(&fc->ir[i]->q); 725 726 STAILQ_INIT(&fc->it[i]->binds); 727 STAILQ_INIT(&fc->ir[i]->binds); 728 } 729 730 fc->arq->maxq = FWMAXQUEUE; 731 fc->ars->maxq = FWMAXQUEUE; 732 fc->atq->maxq = FWMAXQUEUE; 733 fc->ats->maxq = FWMAXQUEUE; 734 735 for( i = 0 ; i < fc->nisodma ; i++){ 736 fc->ir[i]->maxq = FWMAXQUEUE; 737 fc->it[i]->maxq = FWMAXQUEUE; 738 } 739 /* Initialize csr registers */ 740 fc->topology_map = (struct fw_topology_map *)malloc( 741 sizeof(struct fw_topology_map), 742 M_FW, M_NOWAIT | M_ZERO); 743 fc->speed_map = (struct fw_speed_map *)malloc( 744 sizeof(struct fw_speed_map), 745 M_FW, M_NOWAIT | M_ZERO); 746 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 747 CSRARC(fc, TOPO_MAP + 4) = 1; 748 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 749 CSRARC(fc, SPED_MAP + 4) = 1; 750 751 STAILQ_INIT(&fc->devices); 752 753 /* Initialize csr ROM work space */ 754 SLIST_INIT(&fc->ongocsr); 755 SLIST_INIT(&fc->csrfree); 756 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 757 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 758 if(csrd == NULL) break; 759 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 760 } 761 762 /* Initialize Async handlers */ 763 STAILQ_INIT(&fc->binds); 764 for( i = 0 ; i < 0x40 ; i++){ 765 STAILQ_INIT(&fc->tlabels[i]); 766 } 767 768 /* DV depend CSRs see blue book */ 769 #if 0 770 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 771 CSRARC(fc, oPCR) = 0x8000007a; 772 for(i = 4 ; i < 0x7c/4 ; i+=4){ 773 CSRARC(fc, i + oPCR) = 0x8000007a; 774 } 775 776 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 777 CSRARC(fc, iPCR) = 0x803f0000; 778 for(i = 4 ; i < 0x7c/4 ; i+=4){ 779 CSRARC(fc, i + iPCR) = 0x0; 780 } 781 #endif 782 783 fc->crom_src_buf = NULL; 784 785 #ifdef FW_VMACCESS 786 xfer = fw_xfer_alloc(); 787 if(xfer == NULL) return; 788 789 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 790 if(fwb == NULL){ 791 fw_xfer_free(xfer); 792 } 793 xfer->act.hand = fw_vmaccess; 794 xfer->fc = fc; 795 xfer->sc = NULL; 796 797 fwb->start_hi = 0x2; 798 fwb->start_lo = 0; 799 fwb->addrlen = 0xffffffff; 800 fwb->xfer = xfer; 801 fw_bindadd(fc, fwb); 802 #endif 803 } 804 805 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 806 ((fwb)->end < (addr))?1:0) 807 808 /* 809 * To lookup binded process from IEEE1394 address. 810 */ 811 struct fw_bind * 812 fw_bindlookup(struct firewire_comm *fc, u_int16_t dest_hi, u_int32_t dest_lo) 813 { 814 u_int64_t addr; 815 struct fw_bind *tfw; 816 817 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 818 STAILQ_FOREACH(tfw, &fc->binds, fclist) 819 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0) 820 return(tfw); 821 return(NULL); 822 } 823 824 /* 825 * To bind IEEE1394 address block to process. 826 */ 827 int 828 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 829 { 830 struct fw_bind *tfw, *prev = NULL; 831 832 if (fwb->start > fwb->end) { 833 printf("%s: invalid range\n", __FUNCTION__); 834 return EINVAL; 835 } 836 837 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 838 if (fwb->end < tfw->start) 839 break; 840 prev = tfw; 841 } 842 if (prev == NULL) { 843 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 844 goto out; 845 } 846 if (prev->end < fwb->start) { 847 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 848 goto out; 849 } 850 851 printf("%s: bind failed\n", __FUNCTION__); 852 return (EBUSY); 853 854 out: 855 if (fwb->act_type == FWACT_CH) 856 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 857 return (0); 858 } 859 860 /* 861 * To free IEEE1394 address block. 862 */ 863 int 864 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 865 { 866 #if 0 867 struct fw_xfer *xfer, *next; 868 #endif 869 struct fw_bind *tfw; 870 int s; 871 872 s = splfw(); 873 STAILQ_FOREACH(tfw, &fc->binds, fclist) 874 if (tfw == fwb) { 875 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 876 goto found; 877 } 878 879 printf("%s: no such bind\n", __FUNCTION__); 880 splx(s); 881 return (1); 882 found: 883 #if 0 884 /* shall we do this? */ 885 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 886 next = STAILQ_NEXT(xfer, link); 887 fw_xfer_free(xfer); 888 } 889 STAILQ_INIT(&fwb->xferlist); 890 #endif 891 892 splx(s); 893 return 0; 894 } 895 896 /* 897 * To free transaction label. 898 */ 899 static void 900 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 901 { 902 struct tlabel *tl; 903 int s = splfw(); 904 905 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 906 tl = STAILQ_NEXT(tl, link)){ 907 if(tl->xfer == xfer){ 908 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 909 free(tl, M_FW); 910 splx(s); 911 return; 912 } 913 } 914 splx(s); 915 return; 916 } 917 918 /* 919 * To obtain XFER structure by transaction label. 920 */ 921 static struct fw_xfer * 922 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 923 { 924 struct fw_xfer *xfer; 925 struct tlabel *tl; 926 int s = splfw(); 927 928 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 929 tl = STAILQ_NEXT(tl, link)){ 930 if(tl->xfer->send.hdr.mode.hdr.dst == node){ 931 xfer = tl->xfer; 932 splx(s); 933 if (firewire_debug > 2) 934 printf("fw_tl2xfer: found tl=%d\n", tlabel); 935 return(xfer); 936 } 937 } 938 if (firewire_debug > 1) 939 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 940 splx(s); 941 return(NULL); 942 } 943 944 /* 945 * To allocate IEEE1394 XFER structure. 946 */ 947 struct fw_xfer * 948 fw_xfer_alloc(struct malloc_type *type) 949 { 950 struct fw_xfer *xfer; 951 952 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 953 if (xfer == NULL) 954 return xfer; 955 956 xfer->malloc = type; 957 958 return xfer; 959 } 960 961 struct fw_xfer * 962 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 963 { 964 struct fw_xfer *xfer; 965 966 xfer = fw_xfer_alloc(type); 967 xfer->send.pay_len = send_len; 968 xfer->recv.pay_len = recv_len; 969 if (xfer == NULL) 970 return(NULL); 971 if (send_len > 0) { 972 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 973 if (xfer->send.payload == NULL) { 974 fw_xfer_free(xfer); 975 return(NULL); 976 } 977 } 978 if (recv_len > 0) { 979 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 980 if (xfer->recv.payload == NULL) { 981 if (xfer->send.payload != NULL) 982 free(xfer->send.payload, type); 983 fw_xfer_free(xfer); 984 return(NULL); 985 } 986 } 987 return(xfer); 988 } 989 990 /* 991 * IEEE1394 XFER post process. 992 */ 993 void 994 fw_xfer_done(struct fw_xfer *xfer) 995 { 996 if (xfer->act.hand == NULL) { 997 printf("act.hand == NULL\n"); 998 return; 999 } 1000 1001 if (xfer->fc == NULL) 1002 panic("fw_xfer_done: why xfer->fc is NULL?"); 1003 1004 xfer->act.hand(xfer); 1005 } 1006 1007 void 1008 fw_xfer_unload(struct fw_xfer* xfer) 1009 { 1010 int s; 1011 1012 if(xfer == NULL ) return; 1013 if(xfer->state == FWXF_INQ){ 1014 printf("fw_xfer_free FWXF_INQ\n"); 1015 s = splfw(); 1016 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1017 xfer->q->queued --; 1018 splx(s); 1019 } 1020 if (xfer->fc != NULL) { 1021 #if 1 1022 if(xfer->state == FWXF_START) 1023 /* 1024 * This could happen if: 1025 * 1. We call fwohci_arcv() before fwohci_txd(). 1026 * 2. firewire_watch() is called. 1027 */ 1028 printf("fw_xfer_free FWXF_START\n"); 1029 #endif 1030 fw_tl_free(xfer->fc, xfer); 1031 } 1032 xfer->state = FWXF_INIT; 1033 xfer->resp = 0; 1034 xfer->retry = 0; 1035 } 1036 /* 1037 * To free IEEE1394 XFER structure. 1038 */ 1039 void 1040 fw_xfer_free_buf( struct fw_xfer* xfer) 1041 { 1042 if (xfer == NULL) { 1043 printf("%s: xfer == NULL\n", __FUNCTION__); 1044 return; 1045 } 1046 fw_xfer_unload(xfer); 1047 if(xfer->send.payload != NULL){ 1048 free(xfer->send.payload, xfer->malloc); 1049 } 1050 if(xfer->recv.payload != NULL){ 1051 free(xfer->recv.payload, xfer->malloc); 1052 } 1053 free(xfer, xfer->malloc); 1054 } 1055 1056 void 1057 fw_xfer_free( struct fw_xfer* xfer) 1058 { 1059 if (xfer == NULL) { 1060 printf("%s: xfer == NULL\n", __FUNCTION__); 1061 return; 1062 } 1063 fw_xfer_unload(xfer); 1064 free(xfer, xfer->malloc); 1065 } 1066 1067 void 1068 fw_asy_callback_free(struct fw_xfer *xfer) 1069 { 1070 #if 0 1071 printf("asyreq done state=%d resp=%d\n", 1072 xfer->state, xfer->resp); 1073 #endif 1074 fw_xfer_free(xfer); 1075 } 1076 1077 /* 1078 * To configure PHY. 1079 */ 1080 static void 1081 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1082 { 1083 struct fw_xfer *xfer; 1084 struct fw_pkt *fp; 1085 1086 fc->status = FWBUSPHYCONF; 1087 1088 xfer = fw_xfer_alloc(M_FWXFER); 1089 if (xfer == NULL) 1090 return; 1091 xfer->fc = fc; 1092 xfer->retry_req = fw_asybusy; 1093 xfer->act.hand = fw_asy_callback_free; 1094 1095 fp = &xfer->send.hdr; 1096 fp->mode.ld[1] = 0; 1097 if (root_node >= 0) 1098 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1099 if (gap_count >= 0) 1100 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1101 fp->mode.ld[2] = ~fp->mode.ld[1]; 1102 /* XXX Dangerous, how to pass PHY packet to device driver */ 1103 fp->mode.common.tcode |= FWTCODE_PHY; 1104 1105 if (firewire_debug) 1106 printf("send phy_config root_node=%d gap_count=%d\n", 1107 root_node, gap_count); 1108 fw_asyreq(fc, -1, xfer); 1109 } 1110 1111 #if 0 1112 /* 1113 * Dump self ID. 1114 */ 1115 static void 1116 fw_print_sid(u_int32_t sid) 1117 { 1118 union fw_self_id *s; 1119 s = (union fw_self_id *) &sid; 1120 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1121 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1122 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1123 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1124 s->p0.power_class, s->p0.port0, s->p0.port1, 1125 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1126 } 1127 #endif 1128 1129 /* 1130 * To receive self ID. 1131 */ 1132 void fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) 1133 { 1134 u_int32_t *p; 1135 union fw_self_id *self_id; 1136 u_int i, j, node, c_port = 0, i_branch = 0; 1137 1138 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1139 fc->status = FWBUSINIT; 1140 fc->max_node = fc->nodeid & 0x3f; 1141 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1142 fc->status = FWBUSCYMELECT; 1143 fc->topology_map->crc_len = 2; 1144 fc->topology_map->generation ++; 1145 fc->topology_map->self_id_count = 0; 1146 fc->topology_map->node_count = 0; 1147 fc->speed_map->generation ++; 1148 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1149 self_id = &fc->topology_map->self_id[0]; 1150 for(i = 0; i < fc->sid_cnt; i ++){ 1151 if (sid[1] != ~sid[0]) { 1152 printf("fw_sidrcv: invalid self-id packet\n"); 1153 sid += 2; 1154 continue; 1155 } 1156 *self_id = *((union fw_self_id *)sid); 1157 fc->topology_map->crc_len++; 1158 if(self_id->p0.sequel == 0){ 1159 fc->topology_map->node_count ++; 1160 c_port = 0; 1161 #if 0 1162 fw_print_sid(sid[0]); 1163 #endif 1164 node = self_id->p0.phy_id; 1165 if(fc->max_node < node){ 1166 fc->max_node = self_id->p0.phy_id; 1167 } 1168 /* XXX I'm not sure this is the right speed_map */ 1169 fc->speed_map->speed[node][node] 1170 = self_id->p0.phy_speed; 1171 for (j = 0; j < node; j ++) { 1172 fc->speed_map->speed[j][node] 1173 = fc->speed_map->speed[node][j] 1174 = min(fc->speed_map->speed[j][j], 1175 self_id->p0.phy_speed); 1176 } 1177 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1178 (self_id->p0.link_active && self_id->p0.contender)) { 1179 fc->irm = self_id->p0.phy_id; 1180 } 1181 if(self_id->p0.port0 >= 0x2){ 1182 c_port++; 1183 } 1184 if(self_id->p0.port1 >= 0x2){ 1185 c_port++; 1186 } 1187 if(self_id->p0.port2 >= 0x2){ 1188 c_port++; 1189 } 1190 } 1191 if(c_port > 2){ 1192 i_branch += (c_port - 2); 1193 } 1194 sid += 2; 1195 self_id++; 1196 fc->topology_map->self_id_count ++; 1197 } 1198 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1199 /* CRC */ 1200 fc->topology_map->crc = fw_crc16( 1201 (u_int32_t *)&fc->topology_map->generation, 1202 fc->topology_map->crc_len * 4); 1203 fc->speed_map->crc = fw_crc16( 1204 (u_int32_t *)&fc->speed_map->generation, 1205 fc->speed_map->crc_len * 4); 1206 /* byteswap and copy to CSR */ 1207 p = (u_int32_t *)fc->topology_map; 1208 for (i = 0; i <= fc->topology_map->crc_len; i++) 1209 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1210 p = (u_int32_t *)fc->speed_map; 1211 CSRARC(fc, SPED_MAP) = htonl(*p++); 1212 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1213 /* don't byte-swap u_int8_t array */ 1214 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1215 1216 fc->max_hop = fc->max_node - i_branch; 1217 printf(", maxhop <= %d", fc->max_hop); 1218 1219 if(fc->irm == -1 ){ 1220 printf(", Not found IRM capable node"); 1221 }else{ 1222 printf(", cable IRM = %d", fc->irm); 1223 if (fc->irm == fc->nodeid) 1224 printf(" (me)"); 1225 } 1226 printf("\n"); 1227 1228 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1229 if (fc->irm == fc->nodeid) { 1230 fc->status = FWBUSMGRDONE; 1231 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1232 fw_bmr(fc); 1233 } else { 1234 fc->status = FWBUSMGRELECT; 1235 callout_reset(&fc->bmr_callout, hz/8, 1236 (void *)fw_try_bmr, (void *)fc); 1237 } 1238 } else 1239 fc->status = FWBUSMGRDONE; 1240 1241 callout_reset(&fc->busprobe_callout, hz/4, 1242 (void *)fw_bus_probe, (void *)fc); 1243 } 1244 1245 /* 1246 * To probe devices on the IEEE1394 bus. 1247 */ 1248 static void 1249 fw_bus_probe(struct firewire_comm *fc) 1250 { 1251 int s; 1252 struct fw_device *fwdev; 1253 1254 s = splfw(); 1255 fc->status = FWBUSEXPLORE; 1256 fc->retry_count = 0; 1257 1258 /* Invalidate all devices, just after bus reset. */ 1259 STAILQ_FOREACH(fwdev, &fc->devices, link) 1260 if (fwdev->status != FWDEVINVAL) { 1261 fwdev->status = FWDEVINVAL; 1262 fwdev->rcnt = 0; 1263 } 1264 1265 fc->ongonode = 0; 1266 fc->ongoaddr = CSRROMOFF; 1267 fc->ongodev = NULL; 1268 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1269 fw_bus_explore(fc); 1270 splx(s); 1271 } 1272 1273 /* 1274 * To collect device informations on the IEEE1394 bus. 1275 */ 1276 static void 1277 fw_bus_explore(struct firewire_comm *fc ) 1278 { 1279 int err = 0; 1280 struct fw_device *fwdev, *pfwdev, *tfwdev; 1281 u_int32_t addr; 1282 struct fw_xfer *xfer; 1283 struct fw_pkt *fp; 1284 1285 if(fc->status != FWBUSEXPLORE) 1286 return; 1287 1288 loop: 1289 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1290 1291 if(fc->ongonode > fc->max_node) goto done; 1292 if(fc->ongonode >= 0x3f) goto done; 1293 1294 /* check link */ 1295 /* XXX we need to check phy_id first */ 1296 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1297 if (firewire_debug) 1298 printf("node%d: link down\n", fc->ongonode); 1299 fc->ongonode++; 1300 goto loop; 1301 } 1302 1303 if(fc->ongoaddr <= CSRROMOFF && 1304 fc->ongoeui.hi == 0xffffffff && 1305 fc->ongoeui.lo == 0xffffffff ){ 1306 fc->ongoaddr = CSRROMOFF; 1307 addr = 0xf0000000 | fc->ongoaddr; 1308 }else if(fc->ongoeui.hi == 0xffffffff ){ 1309 fc->ongoaddr = CSRROMOFF + 0xc; 1310 addr = 0xf0000000 | fc->ongoaddr; 1311 }else if(fc->ongoeui.lo == 0xffffffff ){ 1312 fc->ongoaddr = CSRROMOFF + 0x10; 1313 addr = 0xf0000000 | fc->ongoaddr; 1314 }else if(fc->ongodev == NULL){ 1315 STAILQ_FOREACH(fwdev, &fc->devices, link) 1316 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1317 break; 1318 if(fwdev != NULL){ 1319 fwdev->dst = fc->ongonode; 1320 fwdev->status = FWDEVINIT; 1321 fc->ongodev = fwdev; 1322 fc->ongoaddr = CSRROMOFF; 1323 addr = 0xf0000000 | fc->ongoaddr; 1324 goto dorequest; 1325 } 1326 fwdev = malloc(sizeof(struct fw_device), M_FW, 1327 M_NOWAIT | M_ZERO); 1328 if(fwdev == NULL) 1329 return; 1330 fwdev->fc = fc; 1331 fwdev->rommax = 0; 1332 fwdev->dst = fc->ongonode; 1333 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1334 fwdev->status = FWDEVINIT; 1335 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1336 1337 pfwdev = NULL; 1338 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1339 if (tfwdev->eui.hi > fwdev->eui.hi || 1340 (tfwdev->eui.hi == fwdev->eui.hi && 1341 tfwdev->eui.lo > fwdev->eui.lo)) 1342 break; 1343 pfwdev = tfwdev; 1344 } 1345 if (pfwdev == NULL) 1346 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1347 else 1348 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1349 1350 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1351 linkspeed[fwdev->speed], 1352 fc->ongoeui.hi, fc->ongoeui.lo); 1353 1354 fc->ongodev = fwdev; 1355 fc->ongoaddr = CSRROMOFF; 1356 addr = 0xf0000000 | fc->ongoaddr; 1357 }else{ 1358 addr = 0xf0000000 | fc->ongoaddr; 1359 } 1360 dorequest: 1361 #if 0 1362 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1363 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1364 fw_bus_explore_callback); 1365 if(xfer == NULL) goto done; 1366 #else 1367 xfer = fw_xfer_alloc(M_FWXFER); 1368 if(xfer == NULL){ 1369 goto done; 1370 } 1371 xfer->send.spd = 0; 1372 fp = &xfer->send.hdr; 1373 fp->mode.rreqq.dest_hi = 0xffff; 1374 fp->mode.rreqq.tlrt = 0; 1375 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1376 fp->mode.rreqq.pri = 0; 1377 fp->mode.rreqq.src = 0; 1378 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode; 1379 fp->mode.rreqq.dest_lo = addr; 1380 xfer->act.hand = fw_bus_explore_callback; 1381 1382 if (firewire_debug) 1383 printf("node%d: explore addr=0x%x\n", 1384 fc->ongonode, fc->ongoaddr); 1385 err = fw_asyreq(fc, -1, xfer); 1386 if(err){ 1387 fw_xfer_free( xfer); 1388 return; 1389 } 1390 #endif 1391 return; 1392 done: 1393 /* fw_attach_devs */ 1394 fc->status = FWBUSEXPDONE; 1395 if (firewire_debug) 1396 printf("bus_explore done\n"); 1397 fw_attach_dev(fc); 1398 return; 1399 1400 } 1401 1402 /* Portable Async. request read quad */ 1403 struct fw_xfer * 1404 asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1405 u_int32_t addr_hi, u_int32_t addr_lo, 1406 void (*hand) (struct fw_xfer*)) 1407 { 1408 struct fw_xfer *xfer; 1409 struct fw_pkt *fp; 1410 int err; 1411 1412 xfer = fw_xfer_alloc(M_FWXFER); 1413 if (xfer == NULL) 1414 return NULL; 1415 1416 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */ 1417 fp = &xfer->send.hdr; 1418 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1419 if(tl & FWP_TL_VALID){ 1420 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1421 }else{ 1422 fp->mode.rreqq.tlrt = 0; 1423 } 1424 fp->mode.rreqq.tlrt |= rt & 0x3; 1425 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1426 fp->mode.rreqq.pri = 0; 1427 fp->mode.rreqq.src = 0; 1428 fp->mode.rreqq.dst = addr_hi >> 16; 1429 fp->mode.rreqq.dest_lo = addr_lo; 1430 xfer->act.hand = hand; 1431 1432 err = fw_asyreq(fc, -1, xfer); 1433 if(err){ 1434 fw_xfer_free( xfer); 1435 return NULL; 1436 } 1437 return xfer; 1438 } 1439 1440 /* 1441 * Callback for the IEEE1394 bus information collection. 1442 */ 1443 static void 1444 fw_bus_explore_callback(struct fw_xfer *xfer) 1445 { 1446 struct firewire_comm *fc; 1447 struct fw_pkt *sfp,*rfp; 1448 struct csrhdr *chdr; 1449 struct csrdir *csrd; 1450 struct csrreg *csrreg; 1451 u_int32_t offset; 1452 1453 1454 if(xfer == NULL) { 1455 printf("xfer == NULL\n"); 1456 return; 1457 } 1458 fc = xfer->fc; 1459 1460 if (firewire_debug) 1461 printf("node%d: callback addr=0x%x\n", 1462 fc->ongonode, fc->ongoaddr); 1463 1464 if(xfer->resp != 0){ 1465 printf("node%d: resp=%d addr=0x%x\n", 1466 fc->ongonode, xfer->resp, fc->ongoaddr); 1467 goto errnode; 1468 } 1469 1470 sfp = &xfer->send.hdr; 1471 rfp = &xfer->recv.hdr; 1472 #if 0 1473 { 1474 u_int32_t *qld; 1475 int i; 1476 qld = (u_int32_t *)xfer->recv.buf; 1477 printf("len:%d\n", xfer->recv.len); 1478 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1479 printf("0x%08x ", rfp->mode.ld[i/4]); 1480 if((i % 16) == 15) printf("\n"); 1481 } 1482 if((i % 16) != 15) printf("\n"); 1483 } 1484 #endif 1485 if(fc->ongodev == NULL){ 1486 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1487 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1488 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1489 /* If CSR is minimal confinguration, more investgation is not needed. */ 1490 if(chdr->info_len == 1){ 1491 if (firewire_debug) 1492 printf("node%d: minimal config\n", 1493 fc->ongonode); 1494 goto nextnode; 1495 }else{ 1496 fc->ongoaddr = CSRROMOFF + 0xc; 1497 } 1498 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1499 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1500 fc->ongoaddr = CSRROMOFF + 0x10; 1501 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1502 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1503 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1504 if (firewire_debug) 1505 printf("node%d: eui64 is zero.\n", 1506 fc->ongonode); 1507 goto nextnode; 1508 } 1509 fc->ongoaddr = CSRROMOFF; 1510 } 1511 }else{ 1512 if (fc->ongoaddr == CSRROMOFF && 1513 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1514 fc->ongodev->status = FWDEVATTACHED; 1515 goto nextnode; 1516 } 1517 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1518 if(fc->ongoaddr > fc->ongodev->rommax){ 1519 fc->ongodev->rommax = fc->ongoaddr; 1520 } 1521 csrd = SLIST_FIRST(&fc->ongocsr); 1522 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1523 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1524 offset = CSRROMOFF; 1525 }else{ 1526 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1527 offset = csrd->off; 1528 } 1529 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1530 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1531 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1532 csrd = SLIST_FIRST(&fc->csrfree); 1533 if(csrd == NULL){ 1534 goto nextnode; 1535 }else{ 1536 csrd->ongoaddr = fc->ongoaddr; 1537 fc->ongoaddr += csrreg->val * 4; 1538 csrd->off = fc->ongoaddr; 1539 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1540 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1541 goto nextaddr; 1542 } 1543 } 1544 } 1545 fc->ongoaddr += 4; 1546 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1547 (fc->ongodev->rommax < 0x414)){ 1548 if(fc->ongodev->rommax <= 0x414){ 1549 csrd = SLIST_FIRST(&fc->csrfree); 1550 if(csrd == NULL) goto nextnode; 1551 csrd->off = fc->ongoaddr; 1552 csrd->ongoaddr = fc->ongoaddr; 1553 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1554 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1555 } 1556 goto nextaddr; 1557 } 1558 1559 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1560 if(csrd == NULL){ 1561 goto nextnode; 1562 }; 1563 fc->ongoaddr = csrd->ongoaddr + 4; 1564 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1565 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1566 csrd = SLIST_FIRST(&fc->ongocsr); 1567 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1568 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1569 offset = CSRROMOFF; 1570 }else{ 1571 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1572 offset = csrd->off; 1573 } 1574 } 1575 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1576 goto nextnode; 1577 } 1578 } 1579 nextaddr: 1580 fw_xfer_free( xfer); 1581 fw_bus_explore(fc); 1582 return; 1583 errnode: 1584 fc->retry_count++; 1585 if (fc->ongodev != NULL) 1586 fc->ongodev->status = FWDEVINVAL; 1587 nextnode: 1588 fw_xfer_free( xfer); 1589 fc->ongonode++; 1590 /* housekeeping work space */ 1591 fc->ongoaddr = CSRROMOFF; 1592 fc->ongodev = NULL; 1593 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1594 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1595 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1596 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1597 } 1598 fw_bus_explore(fc); 1599 return; 1600 } 1601 1602 /* 1603 * To attach sub-devices layer onto IEEE1394 bus. 1604 */ 1605 static void 1606 fw_attach_dev(struct firewire_comm *fc) 1607 { 1608 struct fw_device *fwdev, *next; 1609 int i, err; 1610 device_t *devlistp; 1611 int devcnt; 1612 struct firewire_dev_comm *fdc; 1613 1614 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1615 next = STAILQ_NEXT(fwdev, link); 1616 if (fwdev->status == FWDEVINIT) { 1617 fwdev->status = FWDEVATTACHED; 1618 } else if (fwdev->status == FWDEVINVAL) { 1619 fwdev->rcnt ++; 1620 if (fwdev->rcnt > hold_count) { 1621 /* 1622 * Remove devices which have not been seen 1623 * for a while. 1624 */ 1625 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1626 link); 1627 free(fwdev, M_FW); 1628 } 1629 } 1630 } 1631 1632 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1633 if( err != 0 ) 1634 return; 1635 for( i = 0 ; i < devcnt ; i++){ 1636 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1637 fdc = device_get_softc(devlistp[i]); 1638 if (fdc->post_explore != NULL) 1639 fdc->post_explore(fdc); 1640 } 1641 } 1642 free(devlistp, M_TEMP); 1643 1644 if (fc->retry_count > 0) { 1645 printf("probe failed for %d node\n", fc->retry_count); 1646 #if 0 1647 callout_reset(&fc->retry_probe_callout, hz*2, 1648 (void *)fc->ibr, (void *)fc); 1649 #endif 1650 } 1651 return; 1652 } 1653 1654 /* 1655 * To allocate uniq transaction label. 1656 */ 1657 static int 1658 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1659 { 1660 u_int i; 1661 struct tlabel *tl, *tmptl; 1662 int s; 1663 static u_int32_t label = 0; 1664 1665 s = splfw(); 1666 for( i = 0 ; i < 0x40 ; i ++){ 1667 label = (label + 1) & 0x3f; 1668 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1669 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1670 if (tmptl->xfer->send.hdr.mode.hdr.dst == 1671 xfer->send.hdr.mode.hdr.dst) 1672 break; 1673 } 1674 if(tmptl == NULL) { 1675 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1676 if (tl == NULL) { 1677 splx(s); 1678 return (-1); 1679 } 1680 tl->xfer = xfer; 1681 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1682 splx(s); 1683 if (firewire_debug > 1) 1684 printf("fw_get_tlabel: dst=%d tl=%d\n", 1685 xfer->send.hdr.mode.hdr.dst, label); 1686 return(label); 1687 } 1688 } 1689 splx(s); 1690 1691 printf("fw_get_tlabel: no free tlabel\n"); 1692 return(-1); 1693 } 1694 1695 static void 1696 fw_rcv_copy(struct fw_rcv_buf *rb) 1697 { 1698 struct fw_pkt *pkt; 1699 u_char *p; 1700 struct tcode_info *tinfo; 1701 u_int res, i, len, plen; 1702 1703 rb->xfer->recv.spd -= rb->spd; 1704 1705 pkt = (struct fw_pkt *)rb->vec->iov_base; 1706 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1707 1708 /* Copy header */ 1709 p = (u_char *)&rb->xfer->recv.hdr; 1710 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1711 (u_char *)rb->vec->iov_base += tinfo->hdr_len; 1712 rb->vec->iov_len -= tinfo->hdr_len; 1713 1714 /* Copy payload */ 1715 p = (u_char *)rb->xfer->recv.payload; 1716 res = rb->xfer->recv.pay_len; 1717 1718 /* special handling for RRESQ */ 1719 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1720 p != NULL && res >= sizeof(u_int32_t)) { 1721 *(u_int32_t *)p = pkt->mode.rresq.data; 1722 rb->xfer->recv.pay_len = sizeof(u_int32_t); 1723 return; 1724 } 1725 1726 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1727 return; 1728 1729 plen = pkt->mode.rresb.len; 1730 1731 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1732 len = MIN(rb->vec->iov_len, plen); 1733 if (res < len) { 1734 printf("rcv buffer(%d) is %d bytes short.\n", 1735 rb->xfer->recv.pay_len, len - res); 1736 len = res; 1737 } 1738 bcopy(rb->vec->iov_base, p, len); 1739 p += len; 1740 res -= len; 1741 plen -= len; 1742 if (res == 0 || plen == 0) 1743 break; 1744 } 1745 rb->xfer->recv.pay_len -= res; 1746 1747 } 1748 1749 /* 1750 * Generic packet receving process. 1751 */ 1752 void 1753 fw_rcv(struct fw_rcv_buf *rb) 1754 { 1755 struct fw_pkt *fp, *resfp; 1756 struct fw_bind *bind; 1757 int tcode, s; 1758 int i, len, oldstate; 1759 #if 0 1760 { 1761 u_int32_t *qld; 1762 int i; 1763 qld = (u_int32_t *)buf; 1764 printf("spd %d len:%d\n", spd, len); 1765 for( i = 0 ; i <= len && i < 32; i+= 4){ 1766 printf("0x%08x ", ntohl(qld[i/4])); 1767 if((i % 16) == 15) printf("\n"); 1768 } 1769 if((i % 16) != 15) printf("\n"); 1770 } 1771 #endif 1772 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1773 tcode = fp->mode.common.tcode; 1774 switch (tcode) { 1775 case FWTCODE_WRES: 1776 case FWTCODE_RRESQ: 1777 case FWTCODE_RRESB: 1778 case FWTCODE_LRES: 1779 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1780 fp->mode.hdr.tlrt >> 2); 1781 if(rb->xfer == NULL) { 1782 printf("fw_rcv: unknown response " 1783 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1784 tcode_str[tcode], tcode, 1785 fp->mode.hdr.src, 1786 fp->mode.hdr.tlrt >> 2, 1787 fp->mode.hdr.tlrt & 3, 1788 fp->mode.rresq.data); 1789 #if 1 1790 printf("try ad-hoc work around!!\n"); 1791 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1792 (fp->mode.hdr.tlrt >> 2)^3); 1793 if (rb->xfer == NULL) { 1794 printf("no use...\n"); 1795 goto err; 1796 } 1797 #else 1798 goto err; 1799 #endif 1800 } 1801 fw_rcv_copy(rb); 1802 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1803 rb->xfer->resp = EIO; 1804 else 1805 rb->xfer->resp = 0; 1806 /* make sure the packet is drained in AT queue */ 1807 oldstate = rb->xfer->state; 1808 rb->xfer->state = FWXF_RCVD; 1809 switch (oldstate) { 1810 case FWXF_SENT: 1811 fw_xfer_done(rb->xfer); 1812 break; 1813 case FWXF_START: 1814 #if 0 1815 if (firewire_debug) 1816 printf("not sent yet tl=%x\n", rb->xfer->tl); 1817 #endif 1818 break; 1819 default: 1820 printf("unexpected state %d\n", rb->xfer->state); 1821 } 1822 return; 1823 case FWTCODE_WREQQ: 1824 case FWTCODE_WREQB: 1825 case FWTCODE_RREQQ: 1826 case FWTCODE_RREQB: 1827 case FWTCODE_LREQ: 1828 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1829 fp->mode.rreqq.dest_lo); 1830 if(bind == NULL){ 1831 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1832 #if __FreeBSD_version >= 500000 1833 " src=0x%x data=%x\n", 1834 #else 1835 " src=0x%x data=%lx\n", 1836 #endif 1837 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1838 tcode_str[tcode], tcode, 1839 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1840 if (rb->fc->status == FWBUSRESET) { 1841 printf("fw_rcv: cannot respond(bus reset)!\n"); 1842 goto err; 1843 } 1844 rb->xfer = fw_xfer_alloc(M_FWXFER); 1845 if(rb->xfer == NULL){ 1846 return; 1847 } 1848 rb->xfer->send.spd = rb->spd; 1849 rb->xfer->send.pay_len = 0; 1850 resfp = &rb->xfer->send.hdr; 1851 switch (tcode) { 1852 case FWTCODE_WREQQ: 1853 case FWTCODE_WREQB: 1854 resfp->mode.hdr.tcode = FWTCODE_WRES; 1855 break; 1856 case FWTCODE_RREQQ: 1857 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1858 break; 1859 case FWTCODE_RREQB: 1860 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1861 break; 1862 case FWTCODE_LREQ: 1863 resfp->mode.hdr.tcode = FWTCODE_LRES; 1864 break; 1865 } 1866 resfp->mode.hdr.dst = fp->mode.hdr.src; 1867 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1868 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1869 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1870 resfp->mode.rresb.extcode = 0; 1871 resfp->mode.rresb.len = 0; 1872 /* 1873 rb->xfer->act.hand = fw_asy_callback; 1874 */ 1875 rb->xfer->act.hand = fw_xfer_free; 1876 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1877 fw_xfer_free(rb->xfer); 1878 return; 1879 } 1880 goto err; 1881 } 1882 len = 0; 1883 for (i = 0; i < rb->nvec; i ++) 1884 len += rb->vec[i].iov_len; 1885 switch(bind->act_type){ 1886 case FWACT_XFER: 1887 /* splfw()?? */ 1888 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1889 if (rb->xfer == NULL) { 1890 printf("Discard a packet for this bind.\n"); 1891 goto err; 1892 } 1893 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1894 fw_rcv_copy(rb); 1895 rb->xfer->act.hand(rb->xfer); 1896 return; 1897 break; 1898 case FWACT_CH: 1899 if(rb->fc->ir[bind->sub]->queued >= 1900 rb->fc->ir[bind->sub]->maxq){ 1901 device_printf(rb->fc->bdev, 1902 "Discard a packet %x %d\n", 1903 bind->sub, 1904 rb->fc->ir[bind->sub]->queued); 1905 goto err; 1906 } 1907 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1908 if (rb->xfer == NULL) { 1909 printf("Discard packet for this bind\n"); 1910 goto err; 1911 } 1912 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1913 fw_rcv_copy(rb); 1914 s = splfw(); 1915 rb->fc->ir[bind->sub]->queued++; 1916 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q, 1917 rb->xfer, link); 1918 splx(s); 1919 1920 wakeup((caddr_t)rb->fc->ir[bind->sub]); 1921 1922 return; 1923 break; 1924 default: 1925 goto err; 1926 break; 1927 } 1928 break; 1929 #if 0 /* shouldn't happen ?? or for GASP */ 1930 case FWTCODE_STREAM: 1931 { 1932 struct fw_xferq *xferq; 1933 1934 xferq = rb->fc->ir[sub]; 1935 #if 0 1936 printf("stream rcv dma %d len %d off %d spd %d\n", 1937 sub, len, off, spd); 1938 #endif 1939 if(xferq->queued >= xferq->maxq) { 1940 printf("receive queue is full\n"); 1941 goto err; 1942 } 1943 /* XXX get xfer from xfer queue, we don't need copy for 1944 per packet mode */ 1945 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1946 vec[0].iov_len); 1947 if (rb->xfer == NULL) goto err; 1948 fw_rcv_copy(rb) 1949 s = splfw(); 1950 xferq->queued++; 1951 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1952 splx(s); 1953 sc = device_get_softc(rb->fc->bdev); 1954 #if __FreeBSD_version >= 500000 1955 if (SEL_WAITING(&xferq->rsel)) 1956 #else 1957 if (&xferq->rsel.si_pid != 0) 1958 #endif 1959 selwakeuppri(&xferq->rsel, FWPRI); 1960 if (xferq->flag & FWXFERQ_WAKEUP) { 1961 xferq->flag &= ~FWXFERQ_WAKEUP; 1962 wakeup((caddr_t)xferq); 1963 } 1964 if (xferq->flag & FWXFERQ_HANDLER) { 1965 xferq->hand(xferq); 1966 } 1967 return; 1968 break; 1969 } 1970 #endif 1971 default: 1972 printf("fw_rcv: unknow tcode %d\n", tcode); 1973 break; 1974 } 1975 err: 1976 return; 1977 } 1978 1979 /* 1980 * Post process for Bus Manager election process. 1981 */ 1982 static void 1983 fw_try_bmr_callback(struct fw_xfer *xfer) 1984 { 1985 struct firewire_comm *fc; 1986 int bmr; 1987 1988 if (xfer == NULL) 1989 return; 1990 fc = xfer->fc; 1991 if (xfer->resp != 0) 1992 goto error; 1993 if (xfer->recv.payload == NULL) 1994 goto error; 1995 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 1996 goto error; 1997 1998 bmr = ntohl(xfer->recv.payload[0]); 1999 if (bmr == 0x3f) 2000 bmr = fc->nodeid; 2001 2002 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2003 fw_xfer_free_buf(xfer); 2004 fw_bmr(fc); 2005 return; 2006 2007 error: 2008 device_printf(fc->bdev, "bus manager election failed\n"); 2009 fw_xfer_free_buf(xfer); 2010 } 2011 2012 2013 /* 2014 * To candidate Bus Manager election process. 2015 */ 2016 static void 2017 fw_try_bmr(void *arg) 2018 { 2019 struct fw_xfer *xfer; 2020 struct firewire_comm *fc = (struct firewire_comm *)arg; 2021 struct fw_pkt *fp; 2022 int err = 0; 2023 2024 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2025 if(xfer == NULL){ 2026 return; 2027 } 2028 xfer->send.spd = 0; 2029 fc->status = FWBUSMGRELECT; 2030 2031 fp = &xfer->send.hdr; 2032 fp->mode.lreq.dest_hi = 0xffff; 2033 fp->mode.lreq.tlrt = 0; 2034 fp->mode.lreq.tcode = FWTCODE_LREQ; 2035 fp->mode.lreq.pri = 0; 2036 fp->mode.lreq.src = 0; 2037 fp->mode.lreq.len = 8; 2038 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2039 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2040 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2041 xfer->send.payload[0] = htonl(0x3f); 2042 xfer->send.payload[1] = htonl(fc->nodeid); 2043 xfer->act.hand = fw_try_bmr_callback; 2044 2045 err = fw_asyreq(fc, -1, xfer); 2046 if(err){ 2047 fw_xfer_free_buf(xfer); 2048 return; 2049 } 2050 return; 2051 } 2052 2053 #ifdef FW_VMACCESS 2054 /* 2055 * Software implementation for physical memory block access. 2056 * XXX:Too slow, usef for debug purpose only. 2057 */ 2058 static void 2059 fw_vmaccess(struct fw_xfer *xfer){ 2060 struct fw_pkt *rfp, *sfp = NULL; 2061 u_int32_t *ld = (u_int32_t *)xfer->recv.buf; 2062 2063 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2064 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2065 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2066 if(xfer->resp != 0){ 2067 fw_xfer_free( xfer); 2068 return; 2069 } 2070 if(xfer->recv.buf == NULL){ 2071 fw_xfer_free( xfer); 2072 return; 2073 } 2074 rfp = (struct fw_pkt *)xfer->recv.buf; 2075 switch(rfp->mode.hdr.tcode){ 2076 /* XXX need fix for 64bit arch */ 2077 case FWTCODE_WREQB: 2078 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2079 xfer->send.len = 12; 2080 sfp = (struct fw_pkt *)xfer->send.buf; 2081 bcopy(rfp->mode.wreqb.payload, 2082 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2083 sfp->mode.wres.tcode = FWTCODE_WRES; 2084 sfp->mode.wres.rtcode = 0; 2085 break; 2086 case FWTCODE_WREQQ: 2087 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2088 xfer->send.len = 12; 2089 sfp->mode.wres.tcode = FWTCODE_WRES; 2090 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2091 sfp->mode.wres.rtcode = 0; 2092 break; 2093 case FWTCODE_RREQB: 2094 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2095 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2096 sfp = (struct fw_pkt *)xfer->send.buf; 2097 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2098 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2099 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2100 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2101 sfp->mode.rresb.rtcode = 0; 2102 sfp->mode.rresb.extcode = 0; 2103 break; 2104 case FWTCODE_RREQQ: 2105 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2106 xfer->send.len = 16; 2107 sfp = (struct fw_pkt *)xfer->send.buf; 2108 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2109 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2110 sfp->mode.rresb.rtcode = 0; 2111 break; 2112 default: 2113 fw_xfer_free( xfer); 2114 return; 2115 } 2116 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2117 xfer->dst = ntohs(rfp->mode.hdr.src); 2118 xfer->act.hand = fw_xfer_free; 2119 xfer->retry_req = fw_asybusy; 2120 2121 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2122 sfp->mode.hdr.pri = 0; 2123 2124 fw_asyreq(xfer->fc, -1, xfer); 2125 /**/ 2126 return; 2127 } 2128 #endif 2129 2130 /* 2131 * CRC16 check-sum for IEEE1394 register blocks. 2132 */ 2133 u_int16_t 2134 fw_crc16(u_int32_t *ptr, u_int32_t len){ 2135 u_int32_t i, sum, crc = 0; 2136 int shift; 2137 len = (len + 3) & ~3; 2138 for(i = 0 ; i < len ; i+= 4){ 2139 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2140 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2141 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2142 } 2143 crc &= 0xffff; 2144 } 2145 return((u_int16_t) crc); 2146 } 2147 2148 static int 2149 fw_bmr(struct firewire_comm *fc) 2150 { 2151 struct fw_device fwdev; 2152 union fw_self_id *self_id; 2153 int cmstr; 2154 u_int32_t quad; 2155 2156 /* Check to see if the current root node is cycle master capable */ 2157 self_id = &fc->topology_map->self_id[fc->max_node]; 2158 if (fc->max_node > 0) { 2159 /* XXX check cmc bit of businfo block rather than contender */ 2160 if (self_id->p0.link_active && self_id->p0.contender) 2161 cmstr = fc->max_node; 2162 else { 2163 device_printf(fc->bdev, 2164 "root node is not cycle master capable\n"); 2165 /* XXX shall we be the cycle master? */ 2166 cmstr = fc->nodeid; 2167 /* XXX need bus reset */ 2168 } 2169 } else 2170 cmstr = -1; 2171 2172 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2173 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2174 /* We are not the bus manager */ 2175 printf("\n"); 2176 return(0); 2177 } 2178 printf("(me)\n"); 2179 2180 /* Optimize gapcount */ 2181 if(fc->max_hop <= MAX_GAPHOP ) 2182 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2183 /* If we are the cycle master, nothing to do */ 2184 if (cmstr == fc->nodeid || cmstr == -1) 2185 return 0; 2186 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2187 bzero(&fwdev, sizeof(fwdev)); 2188 fwdev.fc = fc; 2189 fwdev.dst = cmstr; 2190 fwdev.speed = 0; 2191 fwdev.maxrec = 8; /* 512 */ 2192 fwdev.status = FWDEVINIT; 2193 /* Set cmstr bit on the cycle master */ 2194 quad = htonl(1 << 8); 2195 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2196 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2197 2198 return 0; 2199 } 2200 2201 static int 2202 fw_modevent(module_t mode, int type, void *data) 2203 { 2204 int err = 0; 2205 #if __FreeBSD_version >= 500000 2206 static eventhandler_tag fwdev_ehtag = NULL; 2207 #endif 2208 2209 switch (type) { 2210 case MOD_LOAD: 2211 #if __FreeBSD_version >= 500000 2212 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2213 fwdev_clone, 0, 1000); 2214 #endif 2215 break; 2216 case MOD_UNLOAD: 2217 #if __FreeBSD_version >= 500000 2218 if (fwdev_ehtag != NULL) 2219 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2220 #endif 2221 break; 2222 case MOD_SHUTDOWN: 2223 break; 2224 } 2225 return (err); 2226 } 2227 2228 2229 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2230 MODULE_VERSION(firewire, 1); 2231