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/module.h> 44 #include <sys/malloc.h> 45 #include <sys/conf.h> 46 #include <sys/sysctl.h> 47 #include <sys/kthread.h> 48 49 #include <sys/kdb.h> 50 51 #if defined(__DragonFly__) || __FreeBSD_version < 500000 52 #include <machine/clock.h> /* for DELAY() */ 53 #endif 54 55 #include <sys/bus.h> /* used by smbus and newbus */ 56 #include <machine/bus.h> 57 58 #ifdef __DragonFly__ 59 #include "firewire.h" 60 #include "firewirereg.h" 61 #include "fwmem.h" 62 #include "iec13213.h" 63 #include "iec68113.h" 64 #else 65 #include <dev/firewire/firewire.h> 66 #include <dev/firewire/firewirereg.h> 67 #include <dev/firewire/fwmem.h> 68 #include <dev/firewire/iec13213.h> 69 #include <dev/firewire/iec68113.h> 70 #endif 71 72 struct crom_src_buf { 73 struct crom_src src; 74 struct crom_chunk root; 75 struct crom_chunk vendor; 76 struct crom_chunk hw; 77 }; 78 79 int firewire_debug=0, try_bmr=1, hold_count=3; 80 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 81 "FireWire driver debug flag"); 82 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 83 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 84 "Try to be a bus manager"); 85 SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0, 86 "Number of count of bus resets for removing lost device information"); 87 88 MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 89 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 90 91 #define FW_MAXASYRTY 4 92 93 devclass_t firewire_devclass; 94 95 static void firewire_identify (driver_t *, device_t); 96 static int firewire_probe (device_t); 97 static int firewire_attach (device_t); 98 static int firewire_detach (device_t); 99 static int firewire_resume (device_t); 100 static void firewire_xfer_timeout(void *, int); 101 #if 0 102 static int firewire_shutdown (device_t); 103 #endif 104 static device_t firewire_add_child (device_t, int, const char *, int); 105 static void fw_try_bmr (void *); 106 static void fw_try_bmr_callback (struct fw_xfer *); 107 static void fw_asystart (struct fw_xfer *); 108 static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *); 109 static void fw_bus_probe (struct firewire_comm *); 110 static void fw_attach_dev (struct firewire_comm *); 111 static void fw_bus_probe_thread(void *); 112 #ifdef FW_VMACCESS 113 static void fw_vmaccess (struct fw_xfer *); 114 #endif 115 static int fw_bmr (struct firewire_comm *); 116 static void fw_dump_hdr(struct fw_pkt *, char *); 117 118 static device_method_t firewire_methods[] = { 119 /* Device interface */ 120 DEVMETHOD(device_identify, firewire_identify), 121 DEVMETHOD(device_probe, firewire_probe), 122 DEVMETHOD(device_attach, firewire_attach), 123 DEVMETHOD(device_detach, firewire_detach), 124 DEVMETHOD(device_suspend, bus_generic_suspend), 125 DEVMETHOD(device_resume, firewire_resume), 126 DEVMETHOD(device_shutdown, bus_generic_shutdown), 127 128 /* Bus interface */ 129 DEVMETHOD(bus_add_child, firewire_add_child), 130 DEVMETHOD(bus_print_child, bus_generic_print_child), 131 132 { 0, 0 } 133 }; 134 char *linkspeed[] = { 135 "S100", "S200", "S400", "S800", 136 "S1600", "S3200", "undef", "undef" 137 }; 138 139 static char *tcode_str[] = { 140 "WREQQ", "WREQB", "WRES", "undef", 141 "RREQQ", "RREQB", "RRESQ", "RRESB", 142 "CYCS", "LREQ", "STREAM", "LRES", 143 "undef", "undef", "PHY", "undef" 144 }; 145 146 /* IEEE-1394a Table C-2 Gap count as a function of hops*/ 147 #define MAX_GAPHOP 15 148 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 149 21, 24, 26, 29, 32, 35, 37, 40}; 150 151 static driver_t firewire_driver = { 152 "firewire", 153 firewire_methods, 154 sizeof(struct firewire_softc), 155 }; 156 157 /* 158 * Lookup fwdev by node id. 159 */ 160 struct fw_device * 161 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 162 { 163 struct fw_device *fwdev; 164 int s; 165 166 s = splfw(); 167 STAILQ_FOREACH(fwdev, &fc->devices, link) 168 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 169 break; 170 splx(s); 171 172 return fwdev; 173 } 174 175 /* 176 * Lookup fwdev by EUI64. 177 */ 178 struct fw_device * 179 fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 180 { 181 struct fw_device *fwdev; 182 int s; 183 184 s = splfw(); 185 FW_GLOCK(fc); 186 STAILQ_FOREACH(fwdev, &fc->devices, link) 187 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 188 break; 189 FW_GUNLOCK(fc); 190 splx(s); 191 192 if(fwdev == NULL) return NULL; 193 if(fwdev->status == FWDEVINVAL) return NULL; 194 return fwdev; 195 } 196 197 /* 198 * Async. request procedure for userland application. 199 */ 200 int 201 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 202 { 203 int err = 0; 204 struct fw_xferq *xferq; 205 int len; 206 struct fw_pkt *fp; 207 int tcode; 208 struct tcode_info *info; 209 210 if(xfer == NULL) return EINVAL; 211 if(xfer->hand == NULL){ 212 printf("hand == NULL\n"); 213 return EINVAL; 214 } 215 fp = &xfer->send.hdr; 216 217 tcode = fp->mode.common.tcode & 0xf; 218 info = &fc->tcode[tcode]; 219 if (info->flag == 0) { 220 printf("invalid tcode=%x\n", tcode); 221 return EINVAL; 222 } 223 224 /* XXX allow bus explore packets only after bus rest */ 225 if ((fc->status < FWBUSEXPLORE) && 226 ((tcode != FWTCODE_RREQQ) || (fp->mode.rreqq.dest_hi != 0xffff) || 227 (fp->mode.rreqq.dest_lo < 0xf0000000) || 228 (fp->mode.rreqq.dest_lo >= 0xf0001000))) { 229 xfer->resp = EAGAIN; 230 xfer->flag = FWXF_BUSY; 231 return (EAGAIN); 232 } 233 234 if (info->flag & FWTI_REQ) 235 xferq = fc->atq; 236 else 237 xferq = fc->ats; 238 len = info->hdr_len; 239 if (xfer->send.pay_len > MAXREC(fc->maxrec)) { 240 printf("send.pay_len > maxrec\n"); 241 return EINVAL; 242 } 243 if (info->flag & FWTI_BLOCK_STR) 244 len = fp->mode.stream.len; 245 else if (info->flag & FWTI_BLOCK_ASY) 246 len = fp->mode.rresb.len; 247 else 248 len = 0; 249 if (len != xfer->send.pay_len){ 250 printf("len(%d) != send.pay_len(%d) %s(%x)\n", 251 len, xfer->send.pay_len, tcode_str[tcode], tcode); 252 return EINVAL; 253 } 254 255 if(xferq->start == NULL){ 256 printf("xferq->start == NULL\n"); 257 return EINVAL; 258 } 259 if(!(xferq->queued < xferq->maxq)){ 260 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 261 xferq->queued); 262 return EAGAIN; 263 } 264 265 xfer->tl = -1; 266 if (info->flag & FWTI_TLABEL) { 267 if (fw_get_tlabel(fc, xfer) < 0) 268 return EAGAIN; 269 } 270 271 xfer->resp = 0; 272 xfer->fc = fc; 273 xfer->q = xferq; 274 275 fw_asystart(xfer); 276 return err; 277 } 278 /* 279 * Wakeup blocked process. 280 */ 281 void 282 fw_xferwake(struct fw_xfer *xfer) 283 { 284 struct mtx *lock = &xfer->fc->wait_lock; 285 286 mtx_lock(lock); 287 xfer->flag |= FWXF_WAKE; 288 mtx_unlock(lock); 289 290 wakeup(xfer); 291 return; 292 } 293 294 int 295 fw_xferwait(struct fw_xfer *xfer) 296 { 297 struct mtx *lock = &xfer->fc->wait_lock; 298 int err = 0; 299 300 mtx_lock(lock); 301 if ((xfer->flag & FWXF_WAKE) == 0) 302 err = msleep((void *)xfer, lock, PWAIT|PCATCH, "fw_xferwait", 0); 303 mtx_unlock(lock); 304 305 return (err); 306 } 307 308 /* 309 * Async. request with given xfer structure. 310 */ 311 static void 312 fw_asystart(struct fw_xfer *xfer) 313 { 314 struct firewire_comm *fc = xfer->fc; 315 int s; 316 s = splfw(); 317 /* Protect from interrupt/timeout */ 318 FW_GLOCK(fc); 319 xfer->flag = FWXF_INQ; 320 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 321 #if 0 322 xfer->q->queued ++; 323 #endif 324 FW_GUNLOCK(fc); 325 splx(s); 326 /* XXX just queue for mbuf */ 327 if (xfer->mbuf == NULL) 328 xfer->q->start(fc); 329 return; 330 } 331 332 static void 333 firewire_identify(driver_t *driver, device_t parent) 334 { 335 BUS_ADD_CHILD(parent, 0, "firewire", -1); 336 } 337 338 static int 339 firewire_probe(device_t dev) 340 { 341 device_set_desc(dev, "IEEE1394(FireWire) bus"); 342 return (0); 343 } 344 345 static void 346 firewire_xfer_timeout(void *arg, int pending) 347 { 348 struct firewire_comm *fc = (struct firewire_comm *)arg; 349 struct fw_xfer *xfer, *txfer; 350 struct timeval tv; 351 struct timeval split_timeout; 352 STAILQ_HEAD(, fw_xfer) xfer_timeout; 353 int i, s; 354 355 split_timeout.tv_sec = 0; 356 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 357 358 microtime(&tv); 359 timevalsub(&tv, &split_timeout); 360 STAILQ_INIT(&xfer_timeout); 361 362 s = splfw(); 363 FW_GLOCK(fc); 364 for (i = 0; i < 0x40; i ++) { 365 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 366 if ((xfer->flag & FWXF_SENT) == 0) 367 /* not sent yet */ 368 break; 369 if (timevalcmp(&xfer->tv, &tv, >)) 370 /* the rests are newer than this */ 371 break; 372 device_printf(fc->bdev, 373 "split transaction timeout: " 374 "tl=0x%x flag=0x%02x\n", i, xfer->flag); 375 fw_dump_hdr(&xfer->send.hdr, "send"); 376 xfer->resp = ETIMEDOUT; 377 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel); 378 STAILQ_INSERT_TAIL(&xfer_timeout, xfer, tlabel); 379 } 380 } 381 FW_GUNLOCK(fc); 382 splx(s); 383 fc->timeout(fc); 384 385 STAILQ_FOREACH_SAFE(xfer, &xfer_timeout, tlabel, txfer) 386 xfer->hand(xfer); 387 } 388 389 #define WATCHDOG_HZ 10 390 static void 391 firewire_watchdog(void *arg) 392 { 393 struct firewire_comm *fc; 394 static int watchdog_clock = 0; 395 396 fc = (struct firewire_comm *)arg; 397 398 /* 399 * At boot stage, the device interrupt is disabled and 400 * We encounter a timeout easily. To avoid this, 401 * ignore clock interrupt for a while. 402 */ 403 if (watchdog_clock > WATCHDOG_HZ * 15) 404 taskqueue_enqueue(fc->taskqueue, &fc->task_timeout); 405 else 406 watchdog_clock ++; 407 408 callout_reset(&fc->timeout_callout, hz / WATCHDOG_HZ, 409 (void *)firewire_watchdog, (void *)fc); 410 } 411 412 /* 413 * The attach routine. 414 */ 415 static int 416 firewire_attach(device_t dev) 417 { 418 int unit; 419 struct firewire_softc *sc = device_get_softc(dev); 420 device_t pa = device_get_parent(dev); 421 struct firewire_comm *fc; 422 423 fc = (struct firewire_comm *)device_get_softc(pa); 424 sc->fc = fc; 425 fc->status = FWBUSNOTREADY; 426 427 unit = device_get_unit(dev); 428 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 429 430 fwdev_makedev(sc); 431 432 mtx_init(&fc->wait_lock, "fwwait", NULL, MTX_DEF); 433 CALLOUT_INIT(&fc->timeout_callout); 434 CALLOUT_INIT(&fc->bmr_callout); 435 CALLOUT_INIT(&fc->busprobe_callout); 436 TASK_INIT(&fc->task_timeout, 0, firewire_xfer_timeout, (void *)fc); 437 438 callout_reset(&sc->fc->timeout_callout, hz, 439 (void *)firewire_watchdog, (void *)sc->fc); 440 441 /* create thread */ 442 kthread_create(fw_bus_probe_thread, (void *)fc, &fc->probe_thread, 443 0, 0, "fw%d_probe", unit); 444 445 /* Locate our children */ 446 bus_generic_probe(dev); 447 448 /* launch attachement of the added children */ 449 bus_generic_attach(dev); 450 451 /* bus_reset */ 452 fw_busreset(fc, FWBUSNOTREADY); 453 fc->ibr(fc); 454 455 return 0; 456 } 457 458 /* 459 * Attach it as child. 460 */ 461 static device_t 462 firewire_add_child(device_t dev, int order, const char *name, int unit) 463 { 464 device_t child; 465 struct firewire_softc *sc; 466 467 sc = (struct firewire_softc *)device_get_softc(dev); 468 child = device_add_child(dev, name, unit); 469 if (child) { 470 device_set_ivars(child, sc->fc); 471 device_probe_and_attach(child); 472 } 473 474 return child; 475 } 476 477 static int 478 firewire_resume(device_t dev) 479 { 480 struct firewire_softc *sc; 481 482 sc = (struct firewire_softc *)device_get_softc(dev); 483 sc->fc->status = FWBUSNOTREADY; 484 485 bus_generic_resume(dev); 486 487 return(0); 488 } 489 490 /* 491 * Dettach it. 492 */ 493 static int 494 firewire_detach(device_t dev) 495 { 496 struct firewire_softc *sc; 497 struct firewire_comm *fc; 498 struct fw_device *fwdev, *fwdev_next; 499 int err; 500 501 sc = (struct firewire_softc *)device_get_softc(dev); 502 fc = sc->fc; 503 mtx_lock(&fc->wait_lock); 504 fc->status = FWBUSDETACH; 505 wakeup(fc); 506 if (msleep(fc->probe_thread, &fc->wait_lock, PWAIT, "fwthr", hz * 60)) 507 printf("firewire probe thread didn't die\n"); 508 mtx_unlock(&fc->wait_lock); 509 510 if ((err = fwdev_destroydev(sc)) != 0) 511 return err; 512 513 if ((err = bus_generic_detach(dev)) != 0) 514 return err; 515 516 callout_stop(&fc->timeout_callout); 517 callout_stop(&fc->bmr_callout); 518 callout_stop(&fc->busprobe_callout); 519 520 /* XXX xfree_free and untimeout on all xfers */ 521 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; 522 fwdev = fwdev_next) { 523 fwdev_next = STAILQ_NEXT(fwdev, link); 524 free(fwdev, M_FW); 525 } 526 free(fc->topology_map, M_FW); 527 free(fc->speed_map, M_FW); 528 free(fc->crom_src_buf, M_FW); 529 530 mtx_destroy(&fc->wait_lock); 531 return(0); 532 } 533 #if 0 534 static int 535 firewire_shutdown( device_t dev ) 536 { 537 return 0; 538 } 539 #endif 540 541 542 static void 543 fw_xferq_drain(struct fw_xferq *xferq) 544 { 545 struct fw_xfer *xfer; 546 547 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 548 STAILQ_REMOVE_HEAD(&xferq->q, link); 549 #if 0 550 xferq->queued --; 551 #endif 552 xfer->resp = EAGAIN; 553 xfer->flag = FWXF_SENTERR; 554 fw_xfer_done(xfer); 555 } 556 } 557 558 void 559 fw_drain_txq(struct firewire_comm *fc) 560 { 561 struct fw_xfer *xfer, *txfer; 562 STAILQ_HEAD(, fw_xfer) xfer_drain; 563 int i; 564 565 STAILQ_INIT(&xfer_drain); 566 567 FW_GLOCK(fc); 568 fw_xferq_drain(fc->atq); 569 fw_xferq_drain(fc->ats); 570 for(i = 0; i < fc->nisodma; i++) 571 fw_xferq_drain(fc->it[i]); 572 573 for (i = 0; i < 0x40; i ++) 574 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 575 if (firewire_debug) 576 printf("tl=%d flag=%d\n", i, xfer->flag); 577 xfer->resp = EAGAIN; 578 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel); 579 STAILQ_INSERT_TAIL(&xfer_drain, xfer, tlabel); 580 } 581 FW_GUNLOCK(fc); 582 583 STAILQ_FOREACH_SAFE(xfer, &xfer_drain, tlabel, txfer) 584 xfer->hand(xfer); 585 } 586 587 static void 588 fw_reset_csr(struct firewire_comm *fc) 589 { 590 int i; 591 592 CSRARC(fc, STATE_CLEAR) 593 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 594 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 595 CSRARC(fc, NODE_IDS) = 0x3f; 596 597 CSRARC(fc, TOPO_MAP + 8) = 0; 598 fc->irm = -1; 599 600 fc->max_node = -1; 601 602 for(i = 2; i < 0x100/4 - 2 ; i++){ 603 CSRARC(fc, SPED_MAP + i * 4) = 0; 604 } 605 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 606 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 607 CSRARC(fc, RESET_START) = 0; 608 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 609 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 610 CSRARC(fc, CYCLE_TIME) = 0x0; 611 CSRARC(fc, BUS_TIME) = 0x0; 612 CSRARC(fc, BUS_MGR_ID) = 0x3f; 613 CSRARC(fc, BANDWIDTH_AV) = 4915; 614 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 615 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 616 CSRARC(fc, IP_CHANNELS) = (1 << 31); 617 618 CSRARC(fc, CONF_ROM) = 0x04 << 24; 619 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 620 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 621 1 << 28 | 0xff << 16 | 0x09 << 8; 622 CSRARC(fc, CONF_ROM + 0xc) = 0; 623 624 /* DV depend CSRs see blue book */ 625 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 626 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 627 628 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 629 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 630 } 631 632 static void 633 fw_init_crom(struct firewire_comm *fc) 634 { 635 struct crom_src *src; 636 637 fc->crom_src_buf = (struct crom_src_buf *) 638 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 639 if (fc->crom_src_buf == NULL) 640 return; 641 642 src = &fc->crom_src_buf->src; 643 bzero(src, sizeof(struct crom_src)); 644 645 /* BUS info sample */ 646 src->hdr.info_len = 4; 647 648 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 649 650 src->businfo.irmc = 1; 651 src->businfo.cmc = 1; 652 src->businfo.isc = 1; 653 src->businfo.bmc = 1; 654 src->businfo.pmc = 0; 655 src->businfo.cyc_clk_acc = 100; 656 src->businfo.max_rec = fc->maxrec; 657 src->businfo.max_rom = MAXROM_4; 658 src->businfo.generation = 1; 659 src->businfo.link_spd = fc->speed; 660 661 src->businfo.eui64.hi = fc->eui.hi; 662 src->businfo.eui64.lo = fc->eui.lo; 663 664 STAILQ_INIT(&src->chunk_list); 665 666 fc->crom_src = src; 667 fc->crom_root = &fc->crom_src_buf->root; 668 } 669 670 static void 671 fw_reset_crom(struct firewire_comm *fc) 672 { 673 struct crom_src_buf *buf; 674 struct crom_src *src; 675 struct crom_chunk *root; 676 677 if (fc->crom_src_buf == NULL) 678 fw_init_crom(fc); 679 680 buf = fc->crom_src_buf; 681 src = fc->crom_src; 682 root = fc->crom_root; 683 684 STAILQ_INIT(&src->chunk_list); 685 686 bzero(root, sizeof(struct crom_chunk)); 687 crom_add_chunk(src, NULL, root, 0); 688 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 689 /* private company_id */ 690 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 691 #ifdef __DragonFly__ 692 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 693 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version); 694 #else 695 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 696 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 697 #endif 698 crom_add_simple_text(src, root, &buf->hw, hostname); 699 } 700 701 /* 702 * Called after bus reset. 703 */ 704 void 705 fw_busreset(struct firewire_comm *fc, uint32_t new_status) 706 { 707 struct firewire_dev_comm *fdc; 708 struct crom_src *src; 709 device_t *devlistp; 710 void *newrom; 711 int i, devcnt; 712 713 switch(fc->status){ 714 case FWBUSMGRELECT: 715 callout_stop(&fc->bmr_callout); 716 break; 717 default: 718 break; 719 } 720 fc->status = new_status; 721 fw_reset_csr(fc); 722 fw_reset_crom(fc); 723 724 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 725 for( i = 0 ; i < devcnt ; i++) 726 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 727 fdc = device_get_softc(devlistp[i]); 728 if (fdc->post_busreset != NULL) 729 fdc->post_busreset(fdc); 730 } 731 free(devlistp, M_TEMP); 732 } 733 734 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 735 src = &fc->crom_src_buf->src; 736 crom_load(src, (uint32_t *)newrom, CROMSIZE); 737 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 738 /* bump generation and reload */ 739 src->businfo.generation ++; 740 /* generation must be between 0x2 and 0xF */ 741 if (src->businfo.generation < 2) 742 src->businfo.generation ++; 743 crom_load(src, (uint32_t *)newrom, CROMSIZE); 744 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 745 } 746 free(newrom, M_FW); 747 } 748 749 /* Call once after reboot */ 750 void fw_init(struct firewire_comm *fc) 751 { 752 int i; 753 #ifdef FW_VMACCESS 754 struct fw_xfer *xfer; 755 struct fw_bind *fwb; 756 #endif 757 758 fc->arq->queued = 0; 759 fc->ars->queued = 0; 760 fc->atq->queued = 0; 761 fc->ats->queued = 0; 762 763 fc->arq->buf = NULL; 764 fc->ars->buf = NULL; 765 fc->atq->buf = NULL; 766 fc->ats->buf = NULL; 767 768 fc->arq->flag = 0; 769 fc->ars->flag = 0; 770 fc->atq->flag = 0; 771 fc->ats->flag = 0; 772 773 STAILQ_INIT(&fc->atq->q); 774 STAILQ_INIT(&fc->ats->q); 775 776 for( i = 0 ; i < fc->nisodma ; i ++ ){ 777 fc->it[i]->queued = 0; 778 fc->ir[i]->queued = 0; 779 780 fc->it[i]->start = NULL; 781 fc->ir[i]->start = NULL; 782 783 fc->it[i]->buf = NULL; 784 fc->ir[i]->buf = NULL; 785 786 fc->it[i]->flag = FWXFERQ_STREAM; 787 fc->ir[i]->flag = FWXFERQ_STREAM; 788 789 STAILQ_INIT(&fc->it[i]->q); 790 STAILQ_INIT(&fc->ir[i]->q); 791 } 792 793 fc->arq->maxq = FWMAXQUEUE; 794 fc->ars->maxq = FWMAXQUEUE; 795 fc->atq->maxq = FWMAXQUEUE; 796 fc->ats->maxq = FWMAXQUEUE; 797 798 for( i = 0 ; i < fc->nisodma ; i++){ 799 fc->ir[i]->maxq = FWMAXQUEUE; 800 fc->it[i]->maxq = FWMAXQUEUE; 801 } 802 /* Initialize csr registers */ 803 fc->topology_map = (struct fw_topology_map *)malloc( 804 sizeof(struct fw_topology_map), 805 M_FW, M_NOWAIT | M_ZERO); 806 fc->speed_map = (struct fw_speed_map *)malloc( 807 sizeof(struct fw_speed_map), 808 M_FW, M_NOWAIT | M_ZERO); 809 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 810 CSRARC(fc, TOPO_MAP + 4) = 1; 811 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 812 CSRARC(fc, SPED_MAP + 4) = 1; 813 814 STAILQ_INIT(&fc->devices); 815 816 /* Initialize Async handlers */ 817 STAILQ_INIT(&fc->binds); 818 for( i = 0 ; i < 0x40 ; i++){ 819 STAILQ_INIT(&fc->tlabels[i]); 820 } 821 822 /* DV depend CSRs see blue book */ 823 #if 0 824 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 825 CSRARC(fc, oPCR) = 0x8000007a; 826 for(i = 4 ; i < 0x7c/4 ; i+=4){ 827 CSRARC(fc, i + oPCR) = 0x8000007a; 828 } 829 830 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 831 CSRARC(fc, iPCR) = 0x803f0000; 832 for(i = 4 ; i < 0x7c/4 ; i+=4){ 833 CSRARC(fc, i + iPCR) = 0x0; 834 } 835 #endif 836 837 fc->crom_src_buf = NULL; 838 839 #ifdef FW_VMACCESS 840 xfer = fw_xfer_alloc(); 841 if(xfer == NULL) return; 842 843 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 844 if(fwb == NULL){ 845 fw_xfer_free(xfer); 846 return; 847 } 848 xfer->hand = fw_vmaccess; 849 xfer->fc = fc; 850 xfer->sc = NULL; 851 852 fwb->start_hi = 0x2; 853 fwb->start_lo = 0; 854 fwb->addrlen = 0xffffffff; 855 fwb->xfer = xfer; 856 fw_bindadd(fc, fwb); 857 #endif 858 } 859 860 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 861 ((fwb)->end < (addr))?1:0) 862 863 /* 864 * To lookup bound process from IEEE1394 address. 865 */ 866 struct fw_bind * 867 fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 868 { 869 u_int64_t addr; 870 struct fw_bind *tfw, *r = NULL; 871 872 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 873 FW_GLOCK(fc); 874 STAILQ_FOREACH(tfw, &fc->binds, fclist) 875 if (BIND_CMP(addr, tfw) == 0) { 876 r = tfw; 877 break; 878 } 879 FW_GUNLOCK(fc); 880 return(r); 881 } 882 883 /* 884 * To bind IEEE1394 address block to process. 885 */ 886 int 887 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 888 { 889 struct fw_bind *tfw, *prev = NULL; 890 int r = 0; 891 892 if (fwb->start > fwb->end) { 893 printf("%s: invalid range\n", __func__); 894 return EINVAL; 895 } 896 897 FW_GLOCK(fc); 898 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 899 if (fwb->end < tfw->start) 900 break; 901 prev = tfw; 902 } 903 if (prev == NULL) 904 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 905 else if (prev->end < fwb->start) 906 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 907 else { 908 printf("%s: bind failed\n", __func__); 909 r = EBUSY; 910 } 911 FW_GUNLOCK(fc); 912 return (r); 913 } 914 915 /* 916 * To free IEEE1394 address block. 917 */ 918 int 919 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 920 { 921 #if 0 922 struct fw_xfer *xfer, *next; 923 #endif 924 struct fw_bind *tfw; 925 int s; 926 927 s = splfw(); 928 FW_GLOCK(fc); 929 STAILQ_FOREACH(tfw, &fc->binds, fclist) 930 if (tfw == fwb) { 931 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 932 goto found; 933 } 934 935 printf("%s: no such binding\n", __func__); 936 FW_GUNLOCK(fc); 937 splx(s); 938 return (1); 939 found: 940 #if 0 941 /* shall we do this? */ 942 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 943 next = STAILQ_NEXT(xfer, link); 944 fw_xfer_free(xfer); 945 } 946 STAILQ_INIT(&fwb->xferlist); 947 #endif 948 FW_GUNLOCK(fc); 949 950 splx(s); 951 return 0; 952 } 953 954 int 955 fw_xferlist_add(struct fw_xferlist *q, struct malloc_type *type, 956 int slen, int rlen, int n, 957 struct firewire_comm *fc, void *sc, void (*hand)(struct fw_xfer *)) 958 { 959 int i, s; 960 struct fw_xfer *xfer; 961 962 for (i = 0; i < n; i++) { 963 xfer = fw_xfer_alloc_buf(type, slen, rlen); 964 if (xfer == NULL) 965 return (n); 966 xfer->fc = fc; 967 xfer->sc = sc; 968 xfer->hand = hand; 969 s = splfw(); 970 STAILQ_INSERT_TAIL(q, xfer, link); 971 splx(s); 972 } 973 return (n); 974 } 975 976 void 977 fw_xferlist_remove(struct fw_xferlist *q) 978 { 979 struct fw_xfer *xfer, *next; 980 981 for (xfer = STAILQ_FIRST(q); xfer != NULL; xfer = next) { 982 next = STAILQ_NEXT(xfer, link); 983 fw_xfer_free_buf(xfer); 984 } 985 STAILQ_INIT(q); 986 } 987 /* 988 * dump packet header 989 */ 990 static void 991 fw_dump_hdr(struct fw_pkt *fp, char *prefix) 992 { 993 printf("%s: dst=0x%02x tl=0x%02x rt=%d tcode=0x%x pri=0x%x " 994 "src=0x%03x\n", prefix, 995 fp->mode.hdr.dst & 0x3f, 996 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tlrt & 3, 997 fp->mode.hdr.tcode, fp->mode.hdr.pri, 998 fp->mode.hdr.src); 999 } 1000 1001 /* 1002 * To free transaction label. 1003 */ 1004 static void 1005 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 1006 { 1007 struct fw_xfer *txfer; 1008 int s; 1009 1010 if (xfer->tl < 0) 1011 return; 1012 1013 s = splfw(); 1014 FW_GLOCK(fc); 1015 #if 1 /* make sure the label is allocated */ 1016 STAILQ_FOREACH(txfer, &fc->tlabels[xfer->tl], tlabel) 1017 if(txfer == xfer) 1018 break; 1019 if (txfer == NULL) { 1020 printf("%s: the xfer is not in the queue " 1021 "(tlabel=%d, flag=0x%x)\n", 1022 __FUNCTION__, xfer->tl, xfer->flag); 1023 fw_dump_hdr(&xfer->send.hdr, "send"); 1024 fw_dump_hdr(&xfer->recv.hdr, "recv"); 1025 kdb_backtrace(); 1026 FW_GUNLOCK(fc); 1027 splx(s); 1028 return; 1029 } 1030 #endif 1031 1032 STAILQ_REMOVE(&fc->tlabels[xfer->tl], xfer, fw_xfer, tlabel); 1033 FW_GUNLOCK(fc); 1034 splx(s); 1035 return; 1036 } 1037 1038 /* 1039 * To obtain XFER structure by transaction label. 1040 */ 1041 static struct fw_xfer * 1042 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel, int tcode) 1043 { 1044 struct fw_xfer *xfer; 1045 int s = splfw(); 1046 int req; 1047 1048 FW_GLOCK(fc); 1049 STAILQ_FOREACH(xfer, &fc->tlabels[tlabel], tlabel) 1050 if(xfer->send.hdr.mode.hdr.dst == node) { 1051 FW_GUNLOCK(fc); 1052 splx(s); 1053 KASSERT(xfer->tl == tlabel, 1054 ("xfer->tl 0x%x != 0x%x", xfer->tl, tlabel)); 1055 /* extra sanity check */ 1056 req = xfer->send.hdr.mode.hdr.tcode; 1057 if (xfer->fc->tcode[req].valid_res != tcode) { 1058 printf("%s: invalid response tcode " 1059 "(0x%x for 0x%x)\n", __FUNCTION__, 1060 tcode, req); 1061 return(NULL); 1062 } 1063 1064 if (firewire_debug > 2) 1065 printf("fw_tl2xfer: found tl=%d\n", tlabel); 1066 return(xfer); 1067 } 1068 FW_GUNLOCK(fc); 1069 if (firewire_debug > 1) 1070 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 1071 splx(s); 1072 return(NULL); 1073 } 1074 1075 /* 1076 * To allocate IEEE1394 XFER structure. 1077 */ 1078 struct fw_xfer * 1079 fw_xfer_alloc(struct malloc_type *type) 1080 { 1081 struct fw_xfer *xfer; 1082 1083 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 1084 if (xfer == NULL) 1085 return xfer; 1086 1087 xfer->malloc = type; 1088 1089 return xfer; 1090 } 1091 1092 struct fw_xfer * 1093 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 1094 { 1095 struct fw_xfer *xfer; 1096 1097 xfer = fw_xfer_alloc(type); 1098 if (xfer == NULL) 1099 return(NULL); 1100 xfer->send.pay_len = send_len; 1101 xfer->recv.pay_len = recv_len; 1102 if (send_len > 0) { 1103 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 1104 if (xfer->send.payload == NULL) { 1105 fw_xfer_free(xfer); 1106 return(NULL); 1107 } 1108 } 1109 if (recv_len > 0) { 1110 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 1111 if (xfer->recv.payload == NULL) { 1112 if (xfer->send.payload != NULL) 1113 free(xfer->send.payload, type); 1114 fw_xfer_free(xfer); 1115 return(NULL); 1116 } 1117 } 1118 return(xfer); 1119 } 1120 1121 /* 1122 * IEEE1394 XFER post process. 1123 */ 1124 void 1125 fw_xfer_done(struct fw_xfer *xfer) 1126 { 1127 if (xfer->hand == NULL) { 1128 printf("hand == NULL\n"); 1129 return; 1130 } 1131 1132 if (xfer->fc == NULL) 1133 panic("fw_xfer_done: why xfer->fc is NULL?"); 1134 1135 fw_tl_free(xfer->fc, xfer); 1136 xfer->hand(xfer); 1137 } 1138 1139 void 1140 fw_xfer_unload(struct fw_xfer* xfer) 1141 { 1142 int s; 1143 1144 if(xfer == NULL ) return; 1145 if(xfer->flag & FWXF_INQ){ 1146 printf("fw_xfer_free FWXF_INQ\n"); 1147 s = splfw(); 1148 FW_GLOCK(xfer->fc); 1149 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1150 #if 0 1151 xfer->q->queued --; 1152 #endif 1153 FW_GUNLOCK(xfer->fc); 1154 splx(s); 1155 } 1156 if (xfer->fc != NULL) { 1157 #if 1 1158 if(xfer->flag & FWXF_START) 1159 /* 1160 * This could happen if: 1161 * 1. We call fwohci_arcv() before fwohci_txd(). 1162 * 2. firewire_watch() is called. 1163 */ 1164 printf("fw_xfer_free FWXF_START\n"); 1165 #endif 1166 } 1167 xfer->flag = FWXF_INIT; 1168 xfer->resp = 0; 1169 } 1170 /* 1171 * To free IEEE1394 XFER structure. 1172 */ 1173 void 1174 fw_xfer_free_buf( struct fw_xfer* xfer) 1175 { 1176 if (xfer == NULL) { 1177 printf("%s: xfer == NULL\n", __func__); 1178 return; 1179 } 1180 fw_xfer_unload(xfer); 1181 if(xfer->send.payload != NULL){ 1182 free(xfer->send.payload, xfer->malloc); 1183 } 1184 if(xfer->recv.payload != NULL){ 1185 free(xfer->recv.payload, xfer->malloc); 1186 } 1187 free(xfer, xfer->malloc); 1188 } 1189 1190 void 1191 fw_xfer_free( struct fw_xfer* xfer) 1192 { 1193 if (xfer == NULL) { 1194 printf("%s: xfer == NULL\n", __func__); 1195 return; 1196 } 1197 fw_xfer_unload(xfer); 1198 free(xfer, xfer->malloc); 1199 } 1200 1201 void 1202 fw_asy_callback_free(struct fw_xfer *xfer) 1203 { 1204 #if 0 1205 printf("asyreq done flag=0x%02x resp=%d\n", 1206 xfer->flag, xfer->resp); 1207 #endif 1208 fw_xfer_free(xfer); 1209 } 1210 1211 /* 1212 * To configure PHY. 1213 */ 1214 static void 1215 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1216 { 1217 struct fw_xfer *xfer; 1218 struct fw_pkt *fp; 1219 1220 fc->status = FWBUSPHYCONF; 1221 1222 xfer = fw_xfer_alloc(M_FWXFER); 1223 if (xfer == NULL) 1224 return; 1225 xfer->fc = fc; 1226 xfer->hand = fw_asy_callback_free; 1227 1228 fp = &xfer->send.hdr; 1229 fp->mode.ld[1] = 0; 1230 if (root_node >= 0) 1231 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1232 if (gap_count >= 0) 1233 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1234 fp->mode.ld[2] = ~fp->mode.ld[1]; 1235 /* XXX Dangerous, how to pass PHY packet to device driver */ 1236 fp->mode.common.tcode |= FWTCODE_PHY; 1237 1238 if (firewire_debug) 1239 printf("send phy_config root_node=%d gap_count=%d\n", 1240 root_node, gap_count); 1241 fw_asyreq(fc, -1, xfer); 1242 } 1243 1244 #if 0 1245 /* 1246 * Dump self ID. 1247 */ 1248 static void 1249 fw_print_sid(uint32_t sid) 1250 { 1251 union fw_self_id *s; 1252 s = (union fw_self_id *) &sid; 1253 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1254 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1255 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1256 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1257 s->p0.power_class, s->p0.port0, s->p0.port1, 1258 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1259 } 1260 #endif 1261 1262 /* 1263 * To receive self ID. 1264 */ 1265 void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1266 { 1267 uint32_t *p; 1268 union fw_self_id *self_id; 1269 u_int i, j, node, c_port = 0, i_branch = 0; 1270 1271 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1272 fc->max_node = fc->nodeid & 0x3f; 1273 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1274 fc->status = FWBUSCYMELECT; 1275 fc->topology_map->crc_len = 2; 1276 fc->topology_map->generation ++; 1277 fc->topology_map->self_id_count = 0; 1278 fc->topology_map->node_count = 0; 1279 fc->speed_map->generation ++; 1280 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1281 self_id = &fc->topology_map->self_id[0]; 1282 for(i = 0; i < fc->sid_cnt; i ++){ 1283 if (sid[1] != ~sid[0]) { 1284 printf("fw_sidrcv: invalid self-id packet\n"); 1285 sid += 2; 1286 continue; 1287 } 1288 *self_id = *((union fw_self_id *)sid); 1289 fc->topology_map->crc_len++; 1290 if(self_id->p0.sequel == 0){ 1291 fc->topology_map->node_count ++; 1292 c_port = 0; 1293 #if 0 1294 fw_print_sid(sid[0]); 1295 #endif 1296 node = self_id->p0.phy_id; 1297 if(fc->max_node < node){ 1298 fc->max_node = self_id->p0.phy_id; 1299 } 1300 /* XXX I'm not sure this is the right speed_map */ 1301 fc->speed_map->speed[node][node] 1302 = self_id->p0.phy_speed; 1303 for (j = 0; j < node; j ++) { 1304 fc->speed_map->speed[j][node] 1305 = fc->speed_map->speed[node][j] 1306 = min(fc->speed_map->speed[j][j], 1307 self_id->p0.phy_speed); 1308 } 1309 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1310 (self_id->p0.link_active && self_id->p0.contender)) { 1311 fc->irm = self_id->p0.phy_id; 1312 } 1313 if(self_id->p0.port0 >= 0x2){ 1314 c_port++; 1315 } 1316 if(self_id->p0.port1 >= 0x2){ 1317 c_port++; 1318 } 1319 if(self_id->p0.port2 >= 0x2){ 1320 c_port++; 1321 } 1322 } 1323 if(c_port > 2){ 1324 i_branch += (c_port - 2); 1325 } 1326 sid += 2; 1327 self_id++; 1328 fc->topology_map->self_id_count ++; 1329 } 1330 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1331 /* CRC */ 1332 fc->topology_map->crc = fw_crc16( 1333 (uint32_t *)&fc->topology_map->generation, 1334 fc->topology_map->crc_len * 4); 1335 fc->speed_map->crc = fw_crc16( 1336 (uint32_t *)&fc->speed_map->generation, 1337 fc->speed_map->crc_len * 4); 1338 /* byteswap and copy to CSR */ 1339 p = (uint32_t *)fc->topology_map; 1340 for (i = 0; i <= fc->topology_map->crc_len; i++) 1341 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1342 p = (uint32_t *)fc->speed_map; 1343 CSRARC(fc, SPED_MAP) = htonl(*p++); 1344 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1345 /* don't byte-swap uint8_t array */ 1346 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1347 1348 fc->max_hop = fc->max_node - i_branch; 1349 printf(", maxhop <= %d", fc->max_hop); 1350 1351 if(fc->irm == -1 ){ 1352 printf(", Not found IRM capable node"); 1353 }else{ 1354 printf(", cable IRM = %d", fc->irm); 1355 if (fc->irm == fc->nodeid) 1356 printf(" (me)"); 1357 } 1358 printf("\n"); 1359 1360 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1361 if (fc->irm == fc->nodeid) { 1362 fc->status = FWBUSMGRDONE; 1363 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1364 fw_bmr(fc); 1365 } else { 1366 fc->status = FWBUSMGRELECT; 1367 callout_reset(&fc->bmr_callout, hz/8, 1368 (void *)fw_try_bmr, (void *)fc); 1369 } 1370 } else 1371 fc->status = FWBUSMGRDONE; 1372 1373 callout_reset(&fc->busprobe_callout, hz/4, 1374 (void *)fw_bus_probe, (void *)fc); 1375 } 1376 1377 /* 1378 * To probe devices on the IEEE1394 bus. 1379 */ 1380 static void 1381 fw_bus_probe(struct firewire_comm *fc) 1382 { 1383 int s; 1384 struct fw_device *fwdev; 1385 1386 s = splfw(); 1387 fc->status = FWBUSEXPLORE; 1388 1389 /* Invalidate all devices, just after bus reset. */ 1390 STAILQ_FOREACH(fwdev, &fc->devices, link) 1391 if (fwdev->status != FWDEVINVAL) { 1392 fwdev->status = FWDEVINVAL; 1393 fwdev->rcnt = 0; 1394 } 1395 splx(s); 1396 1397 wakeup((void *)fc); 1398 } 1399 1400 static int 1401 fw_explore_read_quads(struct fw_device *fwdev, int offset, 1402 uint32_t *quad, int n) 1403 { 1404 struct fw_xfer *xfer; 1405 uint32_t tmp; 1406 int i, error; 1407 1408 for (i = 0; i < n; i ++, offset += sizeof(uint32_t)) { 1409 xfer = fwmem_read_quad(fwdev, NULL, -1, 1410 0xffff, 0xf0000000 | offset, (void *)&tmp, 1411 fw_xferwake); 1412 if (xfer == NULL) 1413 return (-1); 1414 fw_xferwait(xfer); 1415 1416 if (xfer->resp == 0) 1417 quad[i] = ntohl(tmp); 1418 1419 error = xfer->resp; 1420 fw_xfer_free(xfer); 1421 if (error) 1422 return (error); 1423 } 1424 return (0); 1425 } 1426 1427 1428 static int 1429 fw_explore_csrblock(struct fw_device *fwdev, int offset, int recur) 1430 { 1431 int err, i, off; 1432 struct csrdirectory *dir; 1433 struct csrreg *reg; 1434 1435 dir = (struct csrdirectory *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1436 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1437 (uint32_t *)dir, 1); 1438 if (err) 1439 return (-1); 1440 1441 offset += sizeof(uint32_t); 1442 reg = (struct csrreg *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1443 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1444 (uint32_t *)reg, dir->crc_len); 1445 if (err) 1446 return (-1); 1447 1448 /* XXX check CRC */ 1449 1450 off = CSRROMOFF + offset + sizeof(uint32_t) * (dir->crc_len - 1); 1451 if (fwdev->rommax < off) 1452 fwdev->rommax = off; 1453 1454 if (recur == 0) 1455 return (0); 1456 1457 for (i = 0; i < dir->crc_len; i ++, offset += sizeof(uint32_t)) { 1458 if (reg[i].key == CROM_UDIR) 1459 recur = 1; 1460 else if (reg[i].key == CROM_TEXTLEAF) 1461 recur = 0; 1462 else 1463 continue; 1464 1465 off = offset + reg[i].val * sizeof(uint32_t); 1466 if (off > CROMSIZE) { 1467 printf("%s: invalid offset %d\n", __FUNCTION__, off); 1468 return(-1); 1469 } 1470 err = fw_explore_csrblock(fwdev, off, recur); 1471 if (err) 1472 return (-1); 1473 } 1474 return (0); 1475 } 1476 1477 static int 1478 fw_explore_node(struct fw_device *dfwdev) 1479 { 1480 struct firewire_comm *fc; 1481 struct fw_device *fwdev, *pfwdev, *tfwdev; 1482 uint32_t *csr; 1483 struct csrhdr *hdr; 1484 struct bus_info *binfo; 1485 int err, node, spd; 1486 1487 fc = dfwdev->fc; 1488 csr = dfwdev->csrrom; 1489 node = dfwdev->dst; 1490 1491 /* First quad */ 1492 err = fw_explore_read_quads(dfwdev, CSRROMOFF, &csr[0], 1); 1493 if (err) 1494 return (-1); 1495 hdr = (struct csrhdr *)&csr[0]; 1496 if (hdr->info_len != 4) { 1497 if (firewire_debug) 1498 printf("node%d: wrong bus info len(%d)\n", 1499 node, hdr->info_len); 1500 return (-1); 1501 } 1502 1503 /* bus info */ 1504 err = fw_explore_read_quads(dfwdev, CSRROMOFF + 0x04, &csr[1], 4); 1505 if (err) 1506 return (-1); 1507 binfo = (struct bus_info *)&csr[1]; 1508 if (binfo->bus_name != CSR_BUS_NAME_IEEE1394) { 1509 if (firewire_debug) 1510 printf("node%d: invalid bus name 0x%08x\n", 1511 node, binfo->bus_name); 1512 return (-1); 1513 } 1514 spd = fc->speed_map->speed[fc->nodeid][node]; 1515 STAILQ_FOREACH(fwdev, &fc->devices, link) 1516 if (FW_EUI64_EQUAL(fwdev->eui, binfo->eui64)) 1517 break; 1518 if (fwdev == NULL) { 1519 /* new device */ 1520 fwdev = malloc(sizeof(struct fw_device), M_FW, 1521 M_NOWAIT | M_ZERO); 1522 if (fwdev == NULL) { 1523 if (firewire_debug) 1524 printf("node%d: no memory\n", node); 1525 return (-1); 1526 } 1527 fwdev->fc = fc; 1528 fwdev->eui = binfo->eui64; 1529 /* inesrt into sorted fwdev list */ 1530 pfwdev = NULL; 1531 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1532 if (tfwdev->eui.hi > fwdev->eui.hi || 1533 (tfwdev->eui.hi == fwdev->eui.hi && 1534 tfwdev->eui.lo > fwdev->eui.lo)) 1535 break; 1536 pfwdev = tfwdev; 1537 } 1538 if (pfwdev == NULL) 1539 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1540 else 1541 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1542 1543 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1544 linkspeed[spd], 1545 fwdev->eui.hi, fwdev->eui.lo); 1546 } 1547 fwdev->dst = node; 1548 fwdev->status = FWDEVINIT; 1549 fwdev->speed = spd; 1550 1551 /* unchanged ? */ 1552 if (bcmp(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5) == 0) { 1553 if (firewire_debug) 1554 printf("node%d: crom unchanged\n", node); 1555 return (0); 1556 } 1557 1558 bzero(&fwdev->csrrom[0], CROMSIZE); 1559 1560 /* copy first quad and bus info block */ 1561 bcopy(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5); 1562 fwdev->rommax = CSRROMOFF + sizeof(uint32_t) * 4; 1563 1564 err = fw_explore_csrblock(fwdev, 0x14, 1); /* root directory */ 1565 1566 if (err) { 1567 fwdev->status = FWDEVINVAL; 1568 fwdev->csrrom[0] = 0; 1569 } 1570 return (err); 1571 1572 } 1573 1574 /* 1575 * Find the self_id packet for a node, ignoring sequels. 1576 */ 1577 static union fw_self_id * 1578 fw_find_self_id(struct firewire_comm *fc, int node) 1579 { 1580 uint32_t i; 1581 union fw_self_id *s; 1582 1583 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1584 s = &fc->topology_map->self_id[i]; 1585 if (s->p0.sequel) 1586 continue; 1587 if (s->p0.phy_id == node) 1588 return s; 1589 } 1590 return 0; 1591 } 1592 1593 static void 1594 fw_explore(struct firewire_comm *fc) 1595 { 1596 int node, err, s, i, todo, todo2, trys; 1597 char nodes[63]; 1598 struct fw_device dfwdev; 1599 union fw_self_id *fwsid; 1600 1601 todo = 0; 1602 /* setup dummy fwdev */ 1603 dfwdev.fc = fc; 1604 dfwdev.speed = 0; 1605 dfwdev.maxrec = 8; /* 512 */ 1606 dfwdev.status = FWDEVINIT; 1607 1608 for (node = 0; node <= fc->max_node; node ++) { 1609 /* We don't probe myself and linkdown nodes */ 1610 if (node == fc->nodeid) 1611 continue; 1612 fwsid = fw_find_self_id(fc, node); 1613 if (!fwsid || !fwsid->p0.link_active) { 1614 if (firewire_debug) 1615 printf("node%d: link down\n", node); 1616 continue; 1617 } 1618 nodes[todo++] = node; 1619 } 1620 1621 s = splfw(); 1622 for (trys = 0; todo > 0 && trys < 3; trys ++) { 1623 todo2 = 0; 1624 for (i = 0; i < todo; i ++) { 1625 dfwdev.dst = nodes[i]; 1626 err = fw_explore_node(&dfwdev); 1627 if (err) 1628 nodes[todo2++] = nodes[i]; 1629 if (firewire_debug) 1630 printf("%s: node %d, err = %d\n", 1631 __FUNCTION__, node, err); 1632 } 1633 todo = todo2; 1634 } 1635 splx(s); 1636 } 1637 1638 1639 static void 1640 fw_bus_probe_thread(void *arg) 1641 { 1642 struct firewire_comm *fc; 1643 1644 fc = (struct firewire_comm *)arg; 1645 1646 mtx_lock(&fc->wait_lock); 1647 while (fc->status != FWBUSDETACH) { 1648 if (fc->status == FWBUSEXPLORE) { 1649 mtx_unlock(&fc->wait_lock); 1650 fw_explore(fc); 1651 fc->status = FWBUSEXPDONE; 1652 if (firewire_debug) 1653 printf("bus_explore done\n"); 1654 fw_attach_dev(fc); 1655 mtx_lock(&fc->wait_lock); 1656 } 1657 msleep((void *)fc, &fc->wait_lock, PWAIT|PCATCH, "-", 0); 1658 } 1659 mtx_unlock(&fc->wait_lock); 1660 kthread_exit(0); 1661 } 1662 1663 /* 1664 * To attach sub-devices layer onto IEEE1394 bus. 1665 */ 1666 static void 1667 fw_attach_dev(struct firewire_comm *fc) 1668 { 1669 struct fw_device *fwdev, *next; 1670 int i, err; 1671 device_t *devlistp; 1672 int devcnt; 1673 struct firewire_dev_comm *fdc; 1674 1675 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1676 next = STAILQ_NEXT(fwdev, link); 1677 if (fwdev->status == FWDEVINIT) { 1678 fwdev->status = FWDEVATTACHED; 1679 } else if (fwdev->status == FWDEVINVAL) { 1680 fwdev->rcnt ++; 1681 if (fwdev->rcnt > hold_count) { 1682 /* 1683 * Remove devices which have not been seen 1684 * for a while. 1685 */ 1686 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1687 link); 1688 free(fwdev, M_FW); 1689 } 1690 } 1691 } 1692 1693 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1694 if( err != 0 ) 1695 return; 1696 for( i = 0 ; i < devcnt ; i++){ 1697 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1698 fdc = device_get_softc(devlistp[i]); 1699 if (fdc->post_explore != NULL) 1700 fdc->post_explore(fdc); 1701 } 1702 } 1703 free(devlistp, M_TEMP); 1704 1705 return; 1706 } 1707 1708 /* 1709 * To allocate unique transaction label. 1710 */ 1711 static int 1712 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1713 { 1714 u_int i; 1715 struct fw_xfer *txfer; 1716 int s; 1717 static uint32_t label = 0; 1718 1719 s = splfw(); 1720 FW_GLOCK(fc); 1721 for( i = 0 ; i < 0x40 ; i ++){ 1722 label = (label + 1) & 0x3f; 1723 STAILQ_FOREACH(txfer, &fc->tlabels[label], tlabel) 1724 if (txfer->send.hdr.mode.hdr.dst == 1725 xfer->send.hdr.mode.hdr.dst) 1726 break; 1727 if(txfer == NULL) { 1728 xfer->tl = label; 1729 xfer->send.hdr.mode.hdr.tlrt = label << 2; 1730 STAILQ_INSERT_TAIL(&fc->tlabels[label], xfer, tlabel); 1731 FW_GUNLOCK(fc); 1732 splx(s); 1733 if (firewire_debug > 1) 1734 printf("fw_get_tlabel: dst=%d tl=%d\n", 1735 xfer->send.hdr.mode.hdr.dst, label); 1736 /* note: label may be incremanted after unlock */ 1737 return(xfer->tl); 1738 } 1739 } 1740 FW_GUNLOCK(fc); 1741 splx(s); 1742 1743 if (firewire_debug > 1) 1744 printf("fw_get_tlabel: no free tlabel\n"); 1745 return(-1); 1746 } 1747 1748 static void 1749 fw_rcv_copy(struct fw_rcv_buf *rb) 1750 { 1751 struct fw_pkt *pkt; 1752 u_char *p; 1753 struct tcode_info *tinfo; 1754 u_int res, i, len, plen; 1755 1756 rb->xfer->recv.spd = rb->spd; 1757 1758 pkt = (struct fw_pkt *)rb->vec->iov_base; 1759 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1760 1761 /* Copy header */ 1762 p = (u_char *)&rb->xfer->recv.hdr; 1763 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1764 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1765 rb->vec->iov_len -= tinfo->hdr_len; 1766 1767 /* Copy payload */ 1768 p = (u_char *)rb->xfer->recv.payload; 1769 res = rb->xfer->recv.pay_len; 1770 1771 /* special handling for RRESQ */ 1772 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1773 p != NULL && res >= sizeof(uint32_t)) { 1774 *(uint32_t *)p = pkt->mode.rresq.data; 1775 rb->xfer->recv.pay_len = sizeof(uint32_t); 1776 return; 1777 } 1778 1779 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1780 return; 1781 1782 plen = pkt->mode.rresb.len; 1783 1784 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1785 len = MIN(rb->vec->iov_len, plen); 1786 if (res < len) { 1787 printf("rcv buffer(%d) is %d bytes short.\n", 1788 rb->xfer->recv.pay_len, len - res); 1789 len = res; 1790 } 1791 bcopy(rb->vec->iov_base, p, len); 1792 p += len; 1793 res -= len; 1794 plen -= len; 1795 if (res == 0 || plen == 0) 1796 break; 1797 } 1798 rb->xfer->recv.pay_len -= res; 1799 1800 } 1801 1802 /* 1803 * Generic packet receiving process. 1804 */ 1805 void 1806 fw_rcv(struct fw_rcv_buf *rb) 1807 { 1808 struct fw_pkt *fp, *resfp; 1809 struct fw_bind *bind; 1810 int tcode; 1811 int i, len, oldstate; 1812 #if 0 1813 { 1814 uint32_t *qld; 1815 int i; 1816 qld = (uint32_t *)buf; 1817 printf("spd %d len:%d\n", spd, len); 1818 for( i = 0 ; i <= len && i < 32; i+= 4){ 1819 printf("0x%08x ", ntohl(qld[i/4])); 1820 if((i % 16) == 15) printf("\n"); 1821 } 1822 if((i % 16) != 15) printf("\n"); 1823 } 1824 #endif 1825 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1826 tcode = fp->mode.common.tcode; 1827 switch (tcode) { 1828 case FWTCODE_WRES: 1829 case FWTCODE_RRESQ: 1830 case FWTCODE_RRESB: 1831 case FWTCODE_LRES: 1832 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1833 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tcode); 1834 if(rb->xfer == NULL) { 1835 printf("fw_rcv: unknown response " 1836 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1837 tcode_str[tcode], tcode, 1838 fp->mode.hdr.src, 1839 fp->mode.hdr.tlrt >> 2, 1840 fp->mode.hdr.tlrt & 3, 1841 fp->mode.rresq.data); 1842 #if 0 1843 printf("try ad-hoc work around!!\n"); 1844 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1845 (fp->mode.hdr.tlrt >> 2)^3); 1846 if (rb->xfer == NULL) { 1847 printf("no use...\n"); 1848 return; 1849 } 1850 #else 1851 return; 1852 #endif 1853 } 1854 fw_rcv_copy(rb); 1855 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1856 rb->xfer->resp = EIO; 1857 else 1858 rb->xfer->resp = 0; 1859 /* make sure the packet is drained in AT queue */ 1860 oldstate = rb->xfer->flag; 1861 rb->xfer->flag = FWXF_RCVD; 1862 switch (oldstate) { 1863 case FWXF_SENT: 1864 fw_xfer_done(rb->xfer); 1865 break; 1866 case FWXF_START: 1867 #if 0 1868 if (firewire_debug) 1869 printf("not sent yet tl=%x\n", rb->xfer->tl); 1870 #endif 1871 break; 1872 default: 1873 printf("unexpected flag 0x%02x\n", rb->xfer->flag); 1874 } 1875 return; 1876 case FWTCODE_WREQQ: 1877 case FWTCODE_WREQB: 1878 case FWTCODE_RREQQ: 1879 case FWTCODE_RREQB: 1880 case FWTCODE_LREQ: 1881 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1882 fp->mode.rreqq.dest_lo); 1883 if(bind == NULL){ 1884 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1885 #if defined(__DragonFly__) || __FreeBSD_version < 500000 1886 " src=0x%x data=%lx\n", 1887 #else 1888 " src=0x%x data=%x\n", 1889 #endif 1890 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1891 tcode_str[tcode], tcode, 1892 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1893 if (rb->fc->status == FWBUSINIT) { 1894 printf("fw_rcv: cannot respond(bus reset)!\n"); 1895 return; 1896 } 1897 rb->xfer = fw_xfer_alloc(M_FWXFER); 1898 if(rb->xfer == NULL){ 1899 return; 1900 } 1901 rb->xfer->send.spd = rb->spd; 1902 rb->xfer->send.pay_len = 0; 1903 resfp = &rb->xfer->send.hdr; 1904 switch (tcode) { 1905 case FWTCODE_WREQQ: 1906 case FWTCODE_WREQB: 1907 resfp->mode.hdr.tcode = FWTCODE_WRES; 1908 break; 1909 case FWTCODE_RREQQ: 1910 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1911 break; 1912 case FWTCODE_RREQB: 1913 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1914 break; 1915 case FWTCODE_LREQ: 1916 resfp->mode.hdr.tcode = FWTCODE_LRES; 1917 break; 1918 } 1919 resfp->mode.hdr.dst = fp->mode.hdr.src; 1920 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1921 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1922 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1923 resfp->mode.rresb.extcode = 0; 1924 resfp->mode.rresb.len = 0; 1925 /* 1926 rb->xfer->hand = fw_xferwake; 1927 */ 1928 rb->xfer->hand = fw_xfer_free; 1929 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1930 fw_xfer_free(rb->xfer); 1931 return; 1932 } 1933 return; 1934 } 1935 len = 0; 1936 for (i = 0; i < rb->nvec; i ++) 1937 len += rb->vec[i].iov_len; 1938 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1939 if (rb->xfer == NULL) { 1940 #if 1 1941 printf("Discard a packet for this bind.\n"); 1942 #endif 1943 return; 1944 } 1945 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1946 fw_rcv_copy(rb); 1947 rb->xfer->hand(rb->xfer); 1948 return; 1949 #if 0 /* shouldn't happen ?? or for GASP */ 1950 case FWTCODE_STREAM: 1951 { 1952 struct fw_xferq *xferq; 1953 1954 xferq = rb->fc->ir[sub]; 1955 #if 0 1956 printf("stream rcv dma %d len %d off %d spd %d\n", 1957 sub, len, off, spd); 1958 #endif 1959 if(xferq->queued >= xferq->maxq) { 1960 printf("receive queue is full\n"); 1961 return; 1962 } 1963 /* XXX get xfer from xfer queue, we don't need copy for 1964 per packet mode */ 1965 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1966 vec[0].iov_len); 1967 if (rb->xfer == NULL) 1968 return; 1969 fw_rcv_copy(rb) 1970 s = splfw(); 1971 xferq->queued++; 1972 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1973 splx(s); 1974 sc = device_get_softc(rb->fc->bdev); 1975 #if defined(__DragonFly__) || __FreeBSD_version < 500000 1976 if (&xferq->rsel.si_pid != 0) 1977 #else 1978 if (SEL_WAITING(&xferq->rsel)) 1979 #endif 1980 selwakeuppri(&xferq->rsel, FWPRI); 1981 if (xferq->flag & FWXFERQ_WAKEUP) { 1982 xferq->flag &= ~FWXFERQ_WAKEUP; 1983 wakeup((caddr_t)xferq); 1984 } 1985 if (xferq->flag & FWXFERQ_HANDLER) { 1986 xferq->hand(xferq); 1987 } 1988 return; 1989 break; 1990 } 1991 #endif 1992 default: 1993 printf("fw_rcv: unknow tcode %d\n", tcode); 1994 break; 1995 } 1996 } 1997 1998 /* 1999 * Post process for Bus Manager election process. 2000 */ 2001 static void 2002 fw_try_bmr_callback(struct fw_xfer *xfer) 2003 { 2004 struct firewire_comm *fc; 2005 int bmr; 2006 2007 if (xfer == NULL) 2008 return; 2009 fc = xfer->fc; 2010 if (xfer->resp != 0) 2011 goto error; 2012 if (xfer->recv.payload == NULL) 2013 goto error; 2014 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2015 goto error; 2016 2017 bmr = ntohl(xfer->recv.payload[0]); 2018 if (bmr == 0x3f) 2019 bmr = fc->nodeid; 2020 2021 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2022 fw_xfer_free_buf(xfer); 2023 fw_bmr(fc); 2024 return; 2025 2026 error: 2027 device_printf(fc->bdev, "bus manager election failed\n"); 2028 fw_xfer_free_buf(xfer); 2029 } 2030 2031 2032 /* 2033 * To candidate Bus Manager election process. 2034 */ 2035 static void 2036 fw_try_bmr(void *arg) 2037 { 2038 struct fw_xfer *xfer; 2039 struct firewire_comm *fc = (struct firewire_comm *)arg; 2040 struct fw_pkt *fp; 2041 int err = 0; 2042 2043 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2044 if(xfer == NULL){ 2045 return; 2046 } 2047 xfer->send.spd = 0; 2048 fc->status = FWBUSMGRELECT; 2049 2050 fp = &xfer->send.hdr; 2051 fp->mode.lreq.dest_hi = 0xffff; 2052 fp->mode.lreq.tlrt = 0; 2053 fp->mode.lreq.tcode = FWTCODE_LREQ; 2054 fp->mode.lreq.pri = 0; 2055 fp->mode.lreq.src = 0; 2056 fp->mode.lreq.len = 8; 2057 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2058 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2059 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2060 xfer->send.payload[0] = htonl(0x3f); 2061 xfer->send.payload[1] = htonl(fc->nodeid); 2062 xfer->hand = fw_try_bmr_callback; 2063 2064 err = fw_asyreq(fc, -1, xfer); 2065 if(err){ 2066 fw_xfer_free_buf(xfer); 2067 return; 2068 } 2069 return; 2070 } 2071 2072 #ifdef FW_VMACCESS 2073 /* 2074 * Software implementation for physical memory block access. 2075 * XXX:Too slow, usef for debug purpose only. 2076 */ 2077 static void 2078 fw_vmaccess(struct fw_xfer *xfer){ 2079 struct fw_pkt *rfp, *sfp = NULL; 2080 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2081 2082 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2083 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2084 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2085 if(xfer->resp != 0){ 2086 fw_xfer_free( xfer); 2087 return; 2088 } 2089 if(xfer->recv.buf == NULL){ 2090 fw_xfer_free( xfer); 2091 return; 2092 } 2093 rfp = (struct fw_pkt *)xfer->recv.buf; 2094 switch(rfp->mode.hdr.tcode){ 2095 /* XXX need fix for 64bit arch */ 2096 case FWTCODE_WREQB: 2097 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2098 xfer->send.len = 12; 2099 sfp = (struct fw_pkt *)xfer->send.buf; 2100 bcopy(rfp->mode.wreqb.payload, 2101 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2102 sfp->mode.wres.tcode = FWTCODE_WRES; 2103 sfp->mode.wres.rtcode = 0; 2104 break; 2105 case FWTCODE_WREQQ: 2106 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2107 xfer->send.len = 12; 2108 sfp->mode.wres.tcode = FWTCODE_WRES; 2109 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2110 sfp->mode.wres.rtcode = 0; 2111 break; 2112 case FWTCODE_RREQB: 2113 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2114 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2115 sfp = (struct fw_pkt *)xfer->send.buf; 2116 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2117 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2118 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2119 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2120 sfp->mode.rresb.rtcode = 0; 2121 sfp->mode.rresb.extcode = 0; 2122 break; 2123 case FWTCODE_RREQQ: 2124 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2125 xfer->send.len = 16; 2126 sfp = (struct fw_pkt *)xfer->send.buf; 2127 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2128 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2129 sfp->mode.rresb.rtcode = 0; 2130 break; 2131 default: 2132 fw_xfer_free( xfer); 2133 return; 2134 } 2135 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2136 xfer->dst = ntohs(rfp->mode.hdr.src); 2137 xfer->hand = fw_xfer_free; 2138 2139 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2140 sfp->mode.hdr.pri = 0; 2141 2142 fw_asyreq(xfer->fc, -1, xfer); 2143 /**/ 2144 return; 2145 } 2146 #endif 2147 2148 /* 2149 * CRC16 check-sum for IEEE1394 register blocks. 2150 */ 2151 uint16_t 2152 fw_crc16(uint32_t *ptr, uint32_t len){ 2153 uint32_t i, sum, crc = 0; 2154 int shift; 2155 len = (len + 3) & ~3; 2156 for(i = 0 ; i < len ; i+= 4){ 2157 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2158 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2159 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2160 } 2161 crc &= 0xffff; 2162 } 2163 return((uint16_t) crc); 2164 } 2165 2166 static int 2167 fw_bmr(struct firewire_comm *fc) 2168 { 2169 struct fw_device fwdev; 2170 union fw_self_id *self_id; 2171 int cmstr; 2172 uint32_t quad; 2173 2174 /* Check to see if the current root node is cycle master capable */ 2175 self_id = fw_find_self_id(fc, fc->max_node); 2176 if (fc->max_node > 0) { 2177 /* XXX check cmc bit of businfo block rather than contender */ 2178 if (self_id->p0.link_active && self_id->p0.contender) 2179 cmstr = fc->max_node; 2180 else { 2181 device_printf(fc->bdev, 2182 "root node is not cycle master capable\n"); 2183 /* XXX shall we be the cycle master? */ 2184 cmstr = fc->nodeid; 2185 /* XXX need bus reset */ 2186 } 2187 } else 2188 cmstr = -1; 2189 2190 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2191 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2192 /* We are not the bus manager */ 2193 printf("\n"); 2194 return(0); 2195 } 2196 printf("(me)\n"); 2197 2198 /* Optimize gapcount */ 2199 if(fc->max_hop <= MAX_GAPHOP ) 2200 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2201 /* If we are the cycle master, nothing to do */ 2202 if (cmstr == fc->nodeid || cmstr == -1) 2203 return 0; 2204 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2205 bzero(&fwdev, sizeof(fwdev)); 2206 fwdev.fc = fc; 2207 fwdev.dst = cmstr; 2208 fwdev.speed = 0; 2209 fwdev.maxrec = 8; /* 512 */ 2210 fwdev.status = FWDEVINIT; 2211 /* Set cmstr bit on the cycle master */ 2212 quad = htonl(1 << 8); 2213 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2214 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2215 2216 return 0; 2217 } 2218 2219 int 2220 fw_open_isodma(struct firewire_comm *fc, int tx) 2221 { 2222 struct fw_xferq **xferqa; 2223 struct fw_xferq *xferq; 2224 int i; 2225 2226 if (tx) 2227 xferqa = &fc->it[0]; 2228 else 2229 xferqa = &fc->ir[0]; 2230 2231 FW_GLOCK(fc); 2232 for (i = 0; i < fc->nisodma; i ++) { 2233 xferq = xferqa[i]; 2234 if ((xferq->flag & FWXFERQ_OPEN) == 0) { 2235 xferq->flag |= FWXFERQ_OPEN; 2236 break; 2237 } 2238 } 2239 if (i == fc->nisodma) { 2240 printf("no free dma channel (tx=%d)\n", tx); 2241 i = -1; 2242 } 2243 FW_GUNLOCK(fc); 2244 return (i); 2245 } 2246 2247 static int 2248 fw_modevent(module_t mode, int type, void *data) 2249 { 2250 int err = 0; 2251 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2252 static eventhandler_tag fwdev_ehtag = NULL; 2253 #endif 2254 2255 switch (type) { 2256 case MOD_LOAD: 2257 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2258 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2259 fwdev_clone, 0, 1000); 2260 #endif 2261 break; 2262 case MOD_UNLOAD: 2263 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2264 if (fwdev_ehtag != NULL) 2265 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2266 #endif 2267 break; 2268 case MOD_SHUTDOWN: 2269 break; 2270 default: 2271 return (EOPNOTSUPP); 2272 } 2273 return (err); 2274 } 2275 2276 2277 #ifdef __DragonFly__ 2278 DECLARE_DUMMY_MODULE(firewire); 2279 #endif 2280 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2281 MODULE_VERSION(firewire, 1); 2282