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 mtx_lock(&fc->tlabel_lock); 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 mtx_unlock(&fc->tlabel_lock); 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 mtx_init(&fc->tlabel_lock, "fwtlabel", NULL, MTX_DEF); 434 CALLOUT_INIT(&fc->timeout_callout); 435 CALLOUT_INIT(&fc->bmr_callout); 436 CALLOUT_INIT(&fc->busprobe_callout); 437 TASK_INIT(&fc->task_timeout, 0, firewire_xfer_timeout, (void *)fc); 438 439 callout_reset(&sc->fc->timeout_callout, hz, 440 (void *)firewire_watchdog, (void *)sc->fc); 441 442 /* create thread */ 443 kproc_create(fw_bus_probe_thread, (void *)fc, &fc->probe_thread, 444 0, 0, "fw%d_probe", unit); 445 446 /* Locate our children */ 447 bus_generic_probe(dev); 448 449 /* launch attachement of the added children */ 450 bus_generic_attach(dev); 451 452 /* bus_reset */ 453 fw_busreset(fc, FWBUSNOTREADY); 454 fc->ibr(fc); 455 456 return 0; 457 } 458 459 /* 460 * Attach it as child. 461 */ 462 static device_t 463 firewire_add_child(device_t dev, int order, const char *name, int unit) 464 { 465 device_t child; 466 struct firewire_softc *sc; 467 468 sc = (struct firewire_softc *)device_get_softc(dev); 469 child = device_add_child(dev, name, unit); 470 if (child) { 471 device_set_ivars(child, sc->fc); 472 device_probe_and_attach(child); 473 } 474 475 return child; 476 } 477 478 static int 479 firewire_resume(device_t dev) 480 { 481 struct firewire_softc *sc; 482 483 sc = (struct firewire_softc *)device_get_softc(dev); 484 sc->fc->status = FWBUSNOTREADY; 485 486 bus_generic_resume(dev); 487 488 return(0); 489 } 490 491 /* 492 * Dettach it. 493 */ 494 static int 495 firewire_detach(device_t dev) 496 { 497 struct firewire_softc *sc; 498 struct firewire_comm *fc; 499 struct fw_device *fwdev, *fwdev_next; 500 int err; 501 502 sc = (struct firewire_softc *)device_get_softc(dev); 503 fc = sc->fc; 504 mtx_lock(&fc->wait_lock); 505 fc->status = FWBUSDETACH; 506 wakeup(fc); 507 if (msleep(fc->probe_thread, &fc->wait_lock, PWAIT, "fwthr", hz * 60)) 508 printf("firewire probe thread didn't die\n"); 509 mtx_unlock(&fc->wait_lock); 510 511 if ((err = fwdev_destroydev(sc)) != 0) 512 return err; 513 514 if ((err = bus_generic_detach(dev)) != 0) 515 return err; 516 517 callout_stop(&fc->timeout_callout); 518 callout_stop(&fc->bmr_callout); 519 callout_stop(&fc->busprobe_callout); 520 521 /* XXX xfree_free and untimeout on all xfers */ 522 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; 523 fwdev = fwdev_next) { 524 fwdev_next = STAILQ_NEXT(fwdev, link); 525 free(fwdev, M_FW); 526 } 527 free(fc->topology_map, M_FW); 528 free(fc->speed_map, M_FW); 529 free(fc->crom_src_buf, M_FW); 530 531 mtx_destroy(&fc->tlabel_lock); 532 mtx_destroy(&fc->wait_lock); 533 return(0); 534 } 535 #if 0 536 static int 537 firewire_shutdown( device_t dev ) 538 { 539 return 0; 540 } 541 #endif 542 543 544 static void 545 fw_xferq_drain(struct fw_xferq *xferq) 546 { 547 struct fw_xfer *xfer; 548 549 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 550 STAILQ_REMOVE_HEAD(&xferq->q, link); 551 #if 0 552 xferq->queued --; 553 #endif 554 xfer->resp = EAGAIN; 555 xfer->flag = FWXF_SENTERR; 556 fw_xfer_done(xfer); 557 } 558 } 559 560 void 561 fw_drain_txq(struct firewire_comm *fc) 562 { 563 struct fw_xfer *xfer, *txfer; 564 STAILQ_HEAD(, fw_xfer) xfer_drain; 565 int i; 566 567 STAILQ_INIT(&xfer_drain); 568 569 FW_GLOCK(fc); 570 fw_xferq_drain(fc->atq); 571 fw_xferq_drain(fc->ats); 572 for(i = 0; i < fc->nisodma; i++) 573 fw_xferq_drain(fc->it[i]); 574 FW_GUNLOCK(fc); 575 576 mtx_lock(&fc->tlabel_lock); 577 for (i = 0; i < 0x40; i ++) 578 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 579 if (firewire_debug) 580 printf("tl=%d flag=%d\n", i, xfer->flag); 581 xfer->resp = EAGAIN; 582 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel); 583 STAILQ_INSERT_TAIL(&xfer_drain, xfer, tlabel); 584 } 585 mtx_unlock(&fc->tlabel_lock); 586 587 STAILQ_FOREACH_SAFE(xfer, &xfer_drain, tlabel, txfer) 588 xfer->hand(xfer); 589 } 590 591 static void 592 fw_reset_csr(struct firewire_comm *fc) 593 { 594 int i; 595 596 CSRARC(fc, STATE_CLEAR) 597 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 598 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 599 CSRARC(fc, NODE_IDS) = 0x3f; 600 601 CSRARC(fc, TOPO_MAP + 8) = 0; 602 fc->irm = -1; 603 604 fc->max_node = -1; 605 606 for(i = 2; i < 0x100/4 - 2 ; i++){ 607 CSRARC(fc, SPED_MAP + i * 4) = 0; 608 } 609 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 610 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 611 CSRARC(fc, RESET_START) = 0; 612 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 613 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 614 CSRARC(fc, CYCLE_TIME) = 0x0; 615 CSRARC(fc, BUS_TIME) = 0x0; 616 CSRARC(fc, BUS_MGR_ID) = 0x3f; 617 CSRARC(fc, BANDWIDTH_AV) = 4915; 618 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 619 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 620 CSRARC(fc, IP_CHANNELS) = (1 << 31); 621 622 CSRARC(fc, CONF_ROM) = 0x04 << 24; 623 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 624 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 625 1 << 28 | 0xff << 16 | 0x09 << 8; 626 CSRARC(fc, CONF_ROM + 0xc) = 0; 627 628 /* DV depend CSRs see blue book */ 629 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 630 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 631 632 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 633 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 634 } 635 636 static void 637 fw_init_crom(struct firewire_comm *fc) 638 { 639 struct crom_src *src; 640 641 fc->crom_src_buf = (struct crom_src_buf *) 642 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 643 if (fc->crom_src_buf == NULL) 644 return; 645 646 src = &fc->crom_src_buf->src; 647 bzero(src, sizeof(struct crom_src)); 648 649 /* BUS info sample */ 650 src->hdr.info_len = 4; 651 652 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 653 654 src->businfo.irmc = 1; 655 src->businfo.cmc = 1; 656 src->businfo.isc = 1; 657 src->businfo.bmc = 1; 658 src->businfo.pmc = 0; 659 src->businfo.cyc_clk_acc = 100; 660 src->businfo.max_rec = fc->maxrec; 661 src->businfo.max_rom = MAXROM_4; 662 src->businfo.generation = 1; 663 src->businfo.link_spd = fc->speed; 664 665 src->businfo.eui64.hi = fc->eui.hi; 666 src->businfo.eui64.lo = fc->eui.lo; 667 668 STAILQ_INIT(&src->chunk_list); 669 670 fc->crom_src = src; 671 fc->crom_root = &fc->crom_src_buf->root; 672 } 673 674 static void 675 fw_reset_crom(struct firewire_comm *fc) 676 { 677 struct crom_src_buf *buf; 678 struct crom_src *src; 679 struct crom_chunk *root; 680 681 if (fc->crom_src_buf == NULL) 682 fw_init_crom(fc); 683 684 buf = fc->crom_src_buf; 685 src = fc->crom_src; 686 root = fc->crom_root; 687 688 STAILQ_INIT(&src->chunk_list); 689 690 bzero(root, sizeof(struct crom_chunk)); 691 crom_add_chunk(src, NULL, root, 0); 692 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 693 /* private company_id */ 694 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 695 #ifdef __DragonFly__ 696 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 697 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version); 698 #else 699 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 700 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 701 #endif 702 crom_add_simple_text(src, root, &buf->hw, hostname); 703 } 704 705 /* 706 * Called after bus reset. 707 */ 708 void 709 fw_busreset(struct firewire_comm *fc, uint32_t new_status) 710 { 711 struct firewire_dev_comm *fdc; 712 struct crom_src *src; 713 device_t *devlistp; 714 void *newrom; 715 int i, devcnt; 716 717 switch(fc->status){ 718 case FWBUSMGRELECT: 719 callout_stop(&fc->bmr_callout); 720 break; 721 default: 722 break; 723 } 724 fc->status = new_status; 725 fw_reset_csr(fc); 726 fw_reset_crom(fc); 727 728 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 729 for( i = 0 ; i < devcnt ; i++) 730 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 731 fdc = device_get_softc(devlistp[i]); 732 if (fdc->post_busreset != NULL) 733 fdc->post_busreset(fdc); 734 } 735 free(devlistp, M_TEMP); 736 } 737 738 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 739 src = &fc->crom_src_buf->src; 740 crom_load(src, (uint32_t *)newrom, CROMSIZE); 741 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 742 /* bump generation and reload */ 743 src->businfo.generation ++; 744 /* generation must be between 0x2 and 0xF */ 745 if (src->businfo.generation < 2) 746 src->businfo.generation ++; 747 crom_load(src, (uint32_t *)newrom, CROMSIZE); 748 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 749 } 750 free(newrom, M_FW); 751 } 752 753 /* Call once after reboot */ 754 void fw_init(struct firewire_comm *fc) 755 { 756 int i; 757 #ifdef FW_VMACCESS 758 struct fw_xfer *xfer; 759 struct fw_bind *fwb; 760 #endif 761 762 fc->arq->queued = 0; 763 fc->ars->queued = 0; 764 fc->atq->queued = 0; 765 fc->ats->queued = 0; 766 767 fc->arq->buf = NULL; 768 fc->ars->buf = NULL; 769 fc->atq->buf = NULL; 770 fc->ats->buf = NULL; 771 772 fc->arq->flag = 0; 773 fc->ars->flag = 0; 774 fc->atq->flag = 0; 775 fc->ats->flag = 0; 776 777 STAILQ_INIT(&fc->atq->q); 778 STAILQ_INIT(&fc->ats->q); 779 780 for( i = 0 ; i < fc->nisodma ; i ++ ){ 781 fc->it[i]->queued = 0; 782 fc->ir[i]->queued = 0; 783 784 fc->it[i]->start = NULL; 785 fc->ir[i]->start = NULL; 786 787 fc->it[i]->buf = NULL; 788 fc->ir[i]->buf = NULL; 789 790 fc->it[i]->flag = FWXFERQ_STREAM; 791 fc->ir[i]->flag = FWXFERQ_STREAM; 792 793 STAILQ_INIT(&fc->it[i]->q); 794 STAILQ_INIT(&fc->ir[i]->q); 795 } 796 797 fc->arq->maxq = FWMAXQUEUE; 798 fc->ars->maxq = FWMAXQUEUE; 799 fc->atq->maxq = FWMAXQUEUE; 800 fc->ats->maxq = FWMAXQUEUE; 801 802 for( i = 0 ; i < fc->nisodma ; i++){ 803 fc->ir[i]->maxq = FWMAXQUEUE; 804 fc->it[i]->maxq = FWMAXQUEUE; 805 } 806 /* Initialize csr registers */ 807 fc->topology_map = (struct fw_topology_map *)malloc( 808 sizeof(struct fw_topology_map), 809 M_FW, M_NOWAIT | M_ZERO); 810 fc->speed_map = (struct fw_speed_map *)malloc( 811 sizeof(struct fw_speed_map), 812 M_FW, M_NOWAIT | M_ZERO); 813 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 814 CSRARC(fc, TOPO_MAP + 4) = 1; 815 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 816 CSRARC(fc, SPED_MAP + 4) = 1; 817 818 STAILQ_INIT(&fc->devices); 819 820 /* Initialize Async handlers */ 821 STAILQ_INIT(&fc->binds); 822 for( i = 0 ; i < 0x40 ; i++){ 823 STAILQ_INIT(&fc->tlabels[i]); 824 } 825 826 /* DV depend CSRs see blue book */ 827 #if 0 828 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 829 CSRARC(fc, oPCR) = 0x8000007a; 830 for(i = 4 ; i < 0x7c/4 ; i+=4){ 831 CSRARC(fc, i + oPCR) = 0x8000007a; 832 } 833 834 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 835 CSRARC(fc, iPCR) = 0x803f0000; 836 for(i = 4 ; i < 0x7c/4 ; i+=4){ 837 CSRARC(fc, i + iPCR) = 0x0; 838 } 839 #endif 840 841 fc->crom_src_buf = NULL; 842 843 #ifdef FW_VMACCESS 844 xfer = fw_xfer_alloc(); 845 if(xfer == NULL) return; 846 847 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 848 if(fwb == NULL){ 849 fw_xfer_free(xfer); 850 return; 851 } 852 xfer->hand = fw_vmaccess; 853 xfer->fc = fc; 854 xfer->sc = NULL; 855 856 fwb->start_hi = 0x2; 857 fwb->start_lo = 0; 858 fwb->addrlen = 0xffffffff; 859 fwb->xfer = xfer; 860 fw_bindadd(fc, fwb); 861 #endif 862 } 863 864 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 865 ((fwb)->end < (addr))?1:0) 866 867 /* 868 * To lookup bound process from IEEE1394 address. 869 */ 870 struct fw_bind * 871 fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 872 { 873 u_int64_t addr; 874 struct fw_bind *tfw, *r = NULL; 875 876 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 877 FW_GLOCK(fc); 878 STAILQ_FOREACH(tfw, &fc->binds, fclist) 879 if (BIND_CMP(addr, tfw) == 0) { 880 r = tfw; 881 break; 882 } 883 FW_GUNLOCK(fc); 884 return(r); 885 } 886 887 /* 888 * To bind IEEE1394 address block to process. 889 */ 890 int 891 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 892 { 893 struct fw_bind *tfw, *prev = NULL; 894 int r = 0; 895 896 if (fwb->start > fwb->end) { 897 printf("%s: invalid range\n", __func__); 898 return EINVAL; 899 } 900 901 FW_GLOCK(fc); 902 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 903 if (fwb->end < tfw->start) 904 break; 905 prev = tfw; 906 } 907 if (prev == NULL) 908 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 909 else if (prev->end < fwb->start) 910 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 911 else { 912 printf("%s: bind failed\n", __func__); 913 r = EBUSY; 914 } 915 FW_GUNLOCK(fc); 916 return (r); 917 } 918 919 /* 920 * To free IEEE1394 address block. 921 */ 922 int 923 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 924 { 925 #if 0 926 struct fw_xfer *xfer, *next; 927 #endif 928 struct fw_bind *tfw; 929 int s; 930 931 s = splfw(); 932 FW_GLOCK(fc); 933 STAILQ_FOREACH(tfw, &fc->binds, fclist) 934 if (tfw == fwb) { 935 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 936 goto found; 937 } 938 939 printf("%s: no such binding\n", __func__); 940 FW_GUNLOCK(fc); 941 splx(s); 942 return (1); 943 found: 944 #if 0 945 /* shall we do this? */ 946 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 947 next = STAILQ_NEXT(xfer, link); 948 fw_xfer_free(xfer); 949 } 950 STAILQ_INIT(&fwb->xferlist); 951 #endif 952 FW_GUNLOCK(fc); 953 954 splx(s); 955 return 0; 956 } 957 958 int 959 fw_xferlist_add(struct fw_xferlist *q, struct malloc_type *type, 960 int slen, int rlen, int n, 961 struct firewire_comm *fc, void *sc, void (*hand)(struct fw_xfer *)) 962 { 963 int i, s; 964 struct fw_xfer *xfer; 965 966 for (i = 0; i < n; i++) { 967 xfer = fw_xfer_alloc_buf(type, slen, rlen); 968 if (xfer == NULL) 969 return (n); 970 xfer->fc = fc; 971 xfer->sc = sc; 972 xfer->hand = hand; 973 s = splfw(); 974 STAILQ_INSERT_TAIL(q, xfer, link); 975 splx(s); 976 } 977 return (n); 978 } 979 980 void 981 fw_xferlist_remove(struct fw_xferlist *q) 982 { 983 struct fw_xfer *xfer, *next; 984 985 for (xfer = STAILQ_FIRST(q); xfer != NULL; xfer = next) { 986 next = STAILQ_NEXT(xfer, link); 987 fw_xfer_free_buf(xfer); 988 } 989 STAILQ_INIT(q); 990 } 991 /* 992 * dump packet header 993 */ 994 static void 995 fw_dump_hdr(struct fw_pkt *fp, char *prefix) 996 { 997 printf("%s: dst=0x%02x tl=0x%02x rt=%d tcode=0x%x pri=0x%x " 998 "src=0x%03x\n", prefix, 999 fp->mode.hdr.dst & 0x3f, 1000 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tlrt & 3, 1001 fp->mode.hdr.tcode, fp->mode.hdr.pri, 1002 fp->mode.hdr.src); 1003 } 1004 1005 /* 1006 * To free transaction label. 1007 */ 1008 static void 1009 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 1010 { 1011 struct fw_xfer *txfer; 1012 int s; 1013 1014 if (xfer->tl < 0) 1015 return; 1016 1017 s = splfw(); 1018 mtx_lock(&fc->tlabel_lock); 1019 #if 1 /* make sure the label is allocated */ 1020 STAILQ_FOREACH(txfer, &fc->tlabels[xfer->tl], tlabel) 1021 if(txfer == xfer) 1022 break; 1023 if (txfer == NULL) { 1024 printf("%s: the xfer is not in the queue " 1025 "(tlabel=%d, flag=0x%x)\n", 1026 __FUNCTION__, xfer->tl, xfer->flag); 1027 fw_dump_hdr(&xfer->send.hdr, "send"); 1028 fw_dump_hdr(&xfer->recv.hdr, "recv"); 1029 kdb_backtrace(); 1030 mtx_unlock(&fc->tlabel_lock); 1031 splx(s); 1032 return; 1033 } 1034 #endif 1035 1036 STAILQ_REMOVE(&fc->tlabels[xfer->tl], xfer, fw_xfer, tlabel); 1037 mtx_unlock(&fc->tlabel_lock); 1038 splx(s); 1039 return; 1040 } 1041 1042 /* 1043 * To obtain XFER structure by transaction label. 1044 */ 1045 static struct fw_xfer * 1046 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel, int tcode) 1047 { 1048 struct fw_xfer *xfer; 1049 int s = splfw(); 1050 int req; 1051 1052 mtx_lock(&fc->tlabel_lock); 1053 STAILQ_FOREACH(xfer, &fc->tlabels[tlabel], tlabel) 1054 if(xfer->send.hdr.mode.hdr.dst == node) { 1055 mtx_unlock(&fc->tlabel_lock); 1056 splx(s); 1057 KASSERT(xfer->tl == tlabel, 1058 ("xfer->tl 0x%x != 0x%x", xfer->tl, tlabel)); 1059 /* extra sanity check */ 1060 req = xfer->send.hdr.mode.hdr.tcode; 1061 if (xfer->fc->tcode[req].valid_res != tcode) { 1062 printf("%s: invalid response tcode " 1063 "(0x%x for 0x%x)\n", __FUNCTION__, 1064 tcode, req); 1065 return(NULL); 1066 } 1067 1068 if (firewire_debug > 2) 1069 printf("fw_tl2xfer: found tl=%d\n", tlabel); 1070 return(xfer); 1071 } 1072 mtx_unlock(&fc->tlabel_lock); 1073 if (firewire_debug > 1) 1074 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 1075 splx(s); 1076 return(NULL); 1077 } 1078 1079 /* 1080 * To allocate IEEE1394 XFER structure. 1081 */ 1082 struct fw_xfer * 1083 fw_xfer_alloc(struct malloc_type *type) 1084 { 1085 struct fw_xfer *xfer; 1086 1087 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 1088 if (xfer == NULL) 1089 return xfer; 1090 1091 xfer->malloc = type; 1092 1093 return xfer; 1094 } 1095 1096 struct fw_xfer * 1097 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 1098 { 1099 struct fw_xfer *xfer; 1100 1101 xfer = fw_xfer_alloc(type); 1102 if (xfer == NULL) 1103 return(NULL); 1104 xfer->send.pay_len = send_len; 1105 xfer->recv.pay_len = recv_len; 1106 if (send_len > 0) { 1107 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 1108 if (xfer->send.payload == NULL) { 1109 fw_xfer_free(xfer); 1110 return(NULL); 1111 } 1112 } 1113 if (recv_len > 0) { 1114 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 1115 if (xfer->recv.payload == NULL) { 1116 if (xfer->send.payload != NULL) 1117 free(xfer->send.payload, type); 1118 fw_xfer_free(xfer); 1119 return(NULL); 1120 } 1121 } 1122 return(xfer); 1123 } 1124 1125 /* 1126 * IEEE1394 XFER post process. 1127 */ 1128 void 1129 fw_xfer_done(struct fw_xfer *xfer) 1130 { 1131 if (xfer->hand == NULL) { 1132 printf("hand == NULL\n"); 1133 return; 1134 } 1135 1136 if (xfer->fc == NULL) 1137 panic("fw_xfer_done: why xfer->fc is NULL?"); 1138 1139 fw_tl_free(xfer->fc, xfer); 1140 xfer->hand(xfer); 1141 } 1142 1143 void 1144 fw_xfer_unload(struct fw_xfer* xfer) 1145 { 1146 int s; 1147 1148 if(xfer == NULL ) return; 1149 if(xfer->flag & FWXF_INQ){ 1150 printf("fw_xfer_free FWXF_INQ\n"); 1151 s = splfw(); 1152 FW_GLOCK(xfer->fc); 1153 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1154 #if 0 1155 xfer->q->queued --; 1156 #endif 1157 FW_GUNLOCK(xfer->fc); 1158 splx(s); 1159 } 1160 if (xfer->fc != NULL) { 1161 #if 1 1162 if(xfer->flag & FWXF_START) 1163 /* 1164 * This could happen if: 1165 * 1. We call fwohci_arcv() before fwohci_txd(). 1166 * 2. firewire_watch() is called. 1167 */ 1168 printf("fw_xfer_free FWXF_START\n"); 1169 #endif 1170 } 1171 xfer->flag = FWXF_INIT; 1172 xfer->resp = 0; 1173 } 1174 /* 1175 * To free IEEE1394 XFER structure. 1176 */ 1177 void 1178 fw_xfer_free_buf( struct fw_xfer* xfer) 1179 { 1180 if (xfer == NULL) { 1181 printf("%s: xfer == NULL\n", __func__); 1182 return; 1183 } 1184 fw_xfer_unload(xfer); 1185 if(xfer->send.payload != NULL){ 1186 free(xfer->send.payload, xfer->malloc); 1187 } 1188 if(xfer->recv.payload != NULL){ 1189 free(xfer->recv.payload, xfer->malloc); 1190 } 1191 free(xfer, xfer->malloc); 1192 } 1193 1194 void 1195 fw_xfer_free( struct fw_xfer* xfer) 1196 { 1197 if (xfer == NULL) { 1198 printf("%s: xfer == NULL\n", __func__); 1199 return; 1200 } 1201 fw_xfer_unload(xfer); 1202 free(xfer, xfer->malloc); 1203 } 1204 1205 void 1206 fw_asy_callback_free(struct fw_xfer *xfer) 1207 { 1208 #if 0 1209 printf("asyreq done flag=0x%02x resp=%d\n", 1210 xfer->flag, xfer->resp); 1211 #endif 1212 fw_xfer_free(xfer); 1213 } 1214 1215 /* 1216 * To configure PHY. 1217 */ 1218 static void 1219 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1220 { 1221 struct fw_xfer *xfer; 1222 struct fw_pkt *fp; 1223 1224 fc->status = FWBUSPHYCONF; 1225 1226 xfer = fw_xfer_alloc(M_FWXFER); 1227 if (xfer == NULL) 1228 return; 1229 xfer->fc = fc; 1230 xfer->hand = fw_asy_callback_free; 1231 1232 fp = &xfer->send.hdr; 1233 fp->mode.ld[1] = 0; 1234 if (root_node >= 0) 1235 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1236 if (gap_count >= 0) 1237 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1238 fp->mode.ld[2] = ~fp->mode.ld[1]; 1239 /* XXX Dangerous, how to pass PHY packet to device driver */ 1240 fp->mode.common.tcode |= FWTCODE_PHY; 1241 1242 if (firewire_debug) 1243 printf("send phy_config root_node=%d gap_count=%d\n", 1244 root_node, gap_count); 1245 fw_asyreq(fc, -1, xfer); 1246 } 1247 1248 #if 0 1249 /* 1250 * Dump self ID. 1251 */ 1252 static void 1253 fw_print_sid(uint32_t sid) 1254 { 1255 union fw_self_id *s; 1256 s = (union fw_self_id *) &sid; 1257 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1258 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1259 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1260 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1261 s->p0.power_class, s->p0.port0, s->p0.port1, 1262 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1263 } 1264 #endif 1265 1266 /* 1267 * To receive self ID. 1268 */ 1269 void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1270 { 1271 uint32_t *p; 1272 union fw_self_id *self_id; 1273 u_int i, j, node, c_port = 0, i_branch = 0; 1274 1275 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1276 fc->max_node = fc->nodeid & 0x3f; 1277 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1278 fc->status = FWBUSCYMELECT; 1279 fc->topology_map->crc_len = 2; 1280 fc->topology_map->generation ++; 1281 fc->topology_map->self_id_count = 0; 1282 fc->topology_map->node_count = 0; 1283 fc->speed_map->generation ++; 1284 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1285 self_id = &fc->topology_map->self_id[0]; 1286 for(i = 0; i < fc->sid_cnt; i ++){ 1287 if (sid[1] != ~sid[0]) { 1288 printf("fw_sidrcv: invalid self-id packet\n"); 1289 sid += 2; 1290 continue; 1291 } 1292 *self_id = *((union fw_self_id *)sid); 1293 fc->topology_map->crc_len++; 1294 if(self_id->p0.sequel == 0){ 1295 fc->topology_map->node_count ++; 1296 c_port = 0; 1297 #if 0 1298 fw_print_sid(sid[0]); 1299 #endif 1300 node = self_id->p0.phy_id; 1301 if(fc->max_node < node){ 1302 fc->max_node = self_id->p0.phy_id; 1303 } 1304 /* XXX I'm not sure this is the right speed_map */ 1305 fc->speed_map->speed[node][node] 1306 = self_id->p0.phy_speed; 1307 for (j = 0; j < node; j ++) { 1308 fc->speed_map->speed[j][node] 1309 = fc->speed_map->speed[node][j] 1310 = min(fc->speed_map->speed[j][j], 1311 self_id->p0.phy_speed); 1312 } 1313 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1314 (self_id->p0.link_active && self_id->p0.contender)) { 1315 fc->irm = self_id->p0.phy_id; 1316 } 1317 if(self_id->p0.port0 >= 0x2){ 1318 c_port++; 1319 } 1320 if(self_id->p0.port1 >= 0x2){ 1321 c_port++; 1322 } 1323 if(self_id->p0.port2 >= 0x2){ 1324 c_port++; 1325 } 1326 } 1327 if(c_port > 2){ 1328 i_branch += (c_port - 2); 1329 } 1330 sid += 2; 1331 self_id++; 1332 fc->topology_map->self_id_count ++; 1333 } 1334 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1335 /* CRC */ 1336 fc->topology_map->crc = fw_crc16( 1337 (uint32_t *)&fc->topology_map->generation, 1338 fc->topology_map->crc_len * 4); 1339 fc->speed_map->crc = fw_crc16( 1340 (uint32_t *)&fc->speed_map->generation, 1341 fc->speed_map->crc_len * 4); 1342 /* byteswap and copy to CSR */ 1343 p = (uint32_t *)fc->topology_map; 1344 for (i = 0; i <= fc->topology_map->crc_len; i++) 1345 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1346 p = (uint32_t *)fc->speed_map; 1347 CSRARC(fc, SPED_MAP) = htonl(*p++); 1348 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1349 /* don't byte-swap uint8_t array */ 1350 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1351 1352 fc->max_hop = fc->max_node - i_branch; 1353 printf(", maxhop <= %d", fc->max_hop); 1354 1355 if(fc->irm == -1 ){ 1356 printf(", Not found IRM capable node"); 1357 }else{ 1358 printf(", cable IRM = %d", fc->irm); 1359 if (fc->irm == fc->nodeid) 1360 printf(" (me)"); 1361 } 1362 printf("\n"); 1363 1364 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1365 if (fc->irm == fc->nodeid) { 1366 fc->status = FWBUSMGRDONE; 1367 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1368 fw_bmr(fc); 1369 } else { 1370 fc->status = FWBUSMGRELECT; 1371 callout_reset(&fc->bmr_callout, hz/8, 1372 (void *)fw_try_bmr, (void *)fc); 1373 } 1374 } else 1375 fc->status = FWBUSMGRDONE; 1376 1377 callout_reset(&fc->busprobe_callout, hz/4, 1378 (void *)fw_bus_probe, (void *)fc); 1379 } 1380 1381 /* 1382 * To probe devices on the IEEE1394 bus. 1383 */ 1384 static void 1385 fw_bus_probe(struct firewire_comm *fc) 1386 { 1387 int s; 1388 struct fw_device *fwdev; 1389 1390 s = splfw(); 1391 fc->status = FWBUSEXPLORE; 1392 1393 /* Invalidate all devices, just after bus reset. */ 1394 STAILQ_FOREACH(fwdev, &fc->devices, link) 1395 if (fwdev->status != FWDEVINVAL) { 1396 fwdev->status = FWDEVINVAL; 1397 fwdev->rcnt = 0; 1398 } 1399 splx(s); 1400 1401 wakeup((void *)fc); 1402 } 1403 1404 static int 1405 fw_explore_read_quads(struct fw_device *fwdev, int offset, 1406 uint32_t *quad, int n) 1407 { 1408 struct fw_xfer *xfer; 1409 uint32_t tmp; 1410 int i, error; 1411 1412 for (i = 0; i < n; i ++, offset += sizeof(uint32_t)) { 1413 xfer = fwmem_read_quad(fwdev, NULL, -1, 1414 0xffff, 0xf0000000 | offset, (void *)&tmp, 1415 fw_xferwake); 1416 if (xfer == NULL) 1417 return (-1); 1418 fw_xferwait(xfer); 1419 1420 if (xfer->resp == 0) 1421 quad[i] = ntohl(tmp); 1422 1423 error = xfer->resp; 1424 fw_xfer_free(xfer); 1425 if (error) 1426 return (error); 1427 } 1428 return (0); 1429 } 1430 1431 1432 static int 1433 fw_explore_csrblock(struct fw_device *fwdev, int offset, int recur) 1434 { 1435 int err, i, off; 1436 struct csrdirectory *dir; 1437 struct csrreg *reg; 1438 1439 dir = (struct csrdirectory *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1440 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1441 (uint32_t *)dir, 1); 1442 if (err) 1443 return (-1); 1444 1445 offset += sizeof(uint32_t); 1446 reg = (struct csrreg *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1447 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1448 (uint32_t *)reg, dir->crc_len); 1449 if (err) 1450 return (-1); 1451 1452 /* XXX check CRC */ 1453 1454 off = CSRROMOFF + offset + sizeof(uint32_t) * (dir->crc_len - 1); 1455 if (fwdev->rommax < off) 1456 fwdev->rommax = off; 1457 1458 if (recur == 0) 1459 return (0); 1460 1461 for (i = 0; i < dir->crc_len; i ++, offset += sizeof(uint32_t)) { 1462 if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_D) 1463 recur = 1; 1464 else if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_L) 1465 recur = 0; 1466 else 1467 continue; 1468 1469 off = offset + reg[i].val * sizeof(uint32_t); 1470 if (off > CROMSIZE) { 1471 printf("%s: invalid offset %d\n", __FUNCTION__, off); 1472 return(-1); 1473 } 1474 err = fw_explore_csrblock(fwdev, off, recur); 1475 if (err) 1476 return (-1); 1477 } 1478 return (0); 1479 } 1480 1481 static int 1482 fw_explore_node(struct fw_device *dfwdev) 1483 { 1484 struct firewire_comm *fc; 1485 struct fw_device *fwdev, *pfwdev, *tfwdev; 1486 uint32_t *csr; 1487 struct csrhdr *hdr; 1488 struct bus_info *binfo; 1489 int err, node, spd; 1490 1491 fc = dfwdev->fc; 1492 csr = dfwdev->csrrom; 1493 node = dfwdev->dst; 1494 1495 /* First quad */ 1496 err = fw_explore_read_quads(dfwdev, CSRROMOFF, &csr[0], 1); 1497 if (err) 1498 return (-1); 1499 hdr = (struct csrhdr *)&csr[0]; 1500 if (hdr->info_len != 4) { 1501 if (firewire_debug) 1502 printf("node%d: wrong bus info len(%d)\n", 1503 node, hdr->info_len); 1504 return (-1); 1505 } 1506 1507 /* bus info */ 1508 err = fw_explore_read_quads(dfwdev, CSRROMOFF + 0x04, &csr[1], 4); 1509 if (err) 1510 return (-1); 1511 binfo = (struct bus_info *)&csr[1]; 1512 if (binfo->bus_name != CSR_BUS_NAME_IEEE1394) { 1513 if (firewire_debug) 1514 printf("node%d: invalid bus name 0x%08x\n", 1515 node, binfo->bus_name); 1516 return (-1); 1517 } 1518 spd = fc->speed_map->speed[fc->nodeid][node]; 1519 STAILQ_FOREACH(fwdev, &fc->devices, link) 1520 if (FW_EUI64_EQUAL(fwdev->eui, binfo->eui64)) 1521 break; 1522 if (fwdev == NULL) { 1523 /* new device */ 1524 fwdev = malloc(sizeof(struct fw_device), M_FW, 1525 M_NOWAIT | M_ZERO); 1526 if (fwdev == NULL) { 1527 if (firewire_debug) 1528 printf("node%d: no memory\n", node); 1529 return (-1); 1530 } 1531 fwdev->fc = fc; 1532 fwdev->eui = binfo->eui64; 1533 /* inesrt into sorted fwdev list */ 1534 pfwdev = NULL; 1535 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1536 if (tfwdev->eui.hi > fwdev->eui.hi || 1537 (tfwdev->eui.hi == fwdev->eui.hi && 1538 tfwdev->eui.lo > fwdev->eui.lo)) 1539 break; 1540 pfwdev = tfwdev; 1541 } 1542 if (pfwdev == NULL) 1543 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1544 else 1545 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1546 1547 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1548 linkspeed[spd], 1549 fwdev->eui.hi, fwdev->eui.lo); 1550 } 1551 fwdev->dst = node; 1552 fwdev->status = FWDEVINIT; 1553 fwdev->speed = spd; 1554 1555 /* unchanged ? */ 1556 if (bcmp(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5) == 0) { 1557 if (firewire_debug) 1558 printf("node%d: crom unchanged\n", node); 1559 return (0); 1560 } 1561 1562 bzero(&fwdev->csrrom[0], CROMSIZE); 1563 1564 /* copy first quad and bus info block */ 1565 bcopy(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5); 1566 fwdev->rommax = CSRROMOFF + sizeof(uint32_t) * 4; 1567 1568 err = fw_explore_csrblock(fwdev, 0x14, 1); /* root directory */ 1569 1570 if (err) { 1571 fwdev->status = FWDEVINVAL; 1572 fwdev->csrrom[0] = 0; 1573 } 1574 return (err); 1575 1576 } 1577 1578 /* 1579 * Find the self_id packet for a node, ignoring sequels. 1580 */ 1581 static union fw_self_id * 1582 fw_find_self_id(struct firewire_comm *fc, int node) 1583 { 1584 uint32_t i; 1585 union fw_self_id *s; 1586 1587 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1588 s = &fc->topology_map->self_id[i]; 1589 if (s->p0.sequel) 1590 continue; 1591 if (s->p0.phy_id == node) 1592 return s; 1593 } 1594 return 0; 1595 } 1596 1597 static void 1598 fw_explore(struct firewire_comm *fc) 1599 { 1600 int node, err, s, i, todo, todo2, trys; 1601 char nodes[63]; 1602 struct fw_device dfwdev; 1603 union fw_self_id *fwsid; 1604 1605 todo = 0; 1606 /* setup dummy fwdev */ 1607 dfwdev.fc = fc; 1608 dfwdev.speed = 0; 1609 dfwdev.maxrec = 8; /* 512 */ 1610 dfwdev.status = FWDEVINIT; 1611 1612 for (node = 0; node <= fc->max_node; node ++) { 1613 /* We don't probe myself and linkdown nodes */ 1614 if (node == fc->nodeid) 1615 continue; 1616 fwsid = fw_find_self_id(fc, node); 1617 if (!fwsid || !fwsid->p0.link_active) { 1618 if (firewire_debug) 1619 printf("node%d: link down\n", node); 1620 continue; 1621 } 1622 nodes[todo++] = node; 1623 } 1624 1625 s = splfw(); 1626 for (trys = 0; todo > 0 && trys < 3; trys ++) { 1627 todo2 = 0; 1628 for (i = 0; i < todo; i ++) { 1629 dfwdev.dst = nodes[i]; 1630 err = fw_explore_node(&dfwdev); 1631 if (err) 1632 nodes[todo2++] = nodes[i]; 1633 if (firewire_debug) 1634 printf("%s: node %d, err = %d\n", 1635 __FUNCTION__, node, err); 1636 } 1637 todo = todo2; 1638 } 1639 splx(s); 1640 } 1641 1642 1643 static void 1644 fw_bus_probe_thread(void *arg) 1645 { 1646 struct firewire_comm *fc; 1647 1648 fc = (struct firewire_comm *)arg; 1649 1650 mtx_lock(&fc->wait_lock); 1651 while (fc->status != FWBUSDETACH) { 1652 if (fc->status == FWBUSEXPLORE) { 1653 mtx_unlock(&fc->wait_lock); 1654 fw_explore(fc); 1655 fc->status = FWBUSEXPDONE; 1656 if (firewire_debug) 1657 printf("bus_explore done\n"); 1658 fw_attach_dev(fc); 1659 mtx_lock(&fc->wait_lock); 1660 } 1661 msleep((void *)fc, &fc->wait_lock, PWAIT|PCATCH, "-", 0); 1662 } 1663 mtx_unlock(&fc->wait_lock); 1664 kproc_exit(0); 1665 } 1666 1667 /* 1668 * To attach sub-devices layer onto IEEE1394 bus. 1669 */ 1670 static void 1671 fw_attach_dev(struct firewire_comm *fc) 1672 { 1673 struct fw_device *fwdev, *next; 1674 int i, err; 1675 device_t *devlistp; 1676 int devcnt; 1677 struct firewire_dev_comm *fdc; 1678 1679 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1680 next = STAILQ_NEXT(fwdev, link); 1681 if (fwdev->status == FWDEVINIT) { 1682 fwdev->status = FWDEVATTACHED; 1683 } else if (fwdev->status == FWDEVINVAL) { 1684 fwdev->rcnt ++; 1685 if (fwdev->rcnt > hold_count) { 1686 /* 1687 * Remove devices which have not been seen 1688 * for a while. 1689 */ 1690 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1691 link); 1692 free(fwdev, M_FW); 1693 } 1694 } 1695 } 1696 1697 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1698 if( err != 0 ) 1699 return; 1700 for( i = 0 ; i < devcnt ; i++){ 1701 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1702 fdc = device_get_softc(devlistp[i]); 1703 if (fdc->post_explore != NULL) 1704 fdc->post_explore(fdc); 1705 } 1706 } 1707 free(devlistp, M_TEMP); 1708 1709 return; 1710 } 1711 1712 /* 1713 * To allocate unique transaction label. 1714 */ 1715 static int 1716 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1717 { 1718 u_int dst, new_tlabel; 1719 struct fw_xfer *txfer; 1720 int s; 1721 1722 dst = xfer->send.hdr.mode.hdr.dst & 0x3f; 1723 s = splfw(); 1724 mtx_lock(&fc->tlabel_lock); 1725 new_tlabel = (fc->last_tlabel[dst] + 1) & 0x3f; 1726 STAILQ_FOREACH(txfer, &fc->tlabels[new_tlabel], tlabel) 1727 if ((txfer->send.hdr.mode.hdr.dst & 0x3f) == dst) 1728 break; 1729 if(txfer == NULL) { 1730 fc->last_tlabel[dst] = new_tlabel; 1731 STAILQ_INSERT_TAIL(&fc->tlabels[new_tlabel], xfer, tlabel); 1732 mtx_unlock(&fc->tlabel_lock); 1733 splx(s); 1734 xfer->tl = new_tlabel; 1735 xfer->send.hdr.mode.hdr.tlrt = new_tlabel << 2; 1736 if (firewire_debug > 1) 1737 printf("fw_get_tlabel: dst=%d tl=%d\n", dst, new_tlabel); 1738 return (new_tlabel); 1739 } 1740 mtx_unlock(&fc->tlabel_lock); 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