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 35 #include <sys/cdefs.h> 36 __FBSDID("$FreeBSD$"); 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/types.h> 41 42 #include <sys/jail.h> 43 #include <sys/kernel.h> 44 #include <sys/module.h> 45 #include <sys/malloc.h> 46 #include <sys/conf.h> 47 #include <sys/sysctl.h> 48 #include <sys/kthread.h> 49 50 #include <sys/kdb.h> 51 52 #if defined(__DragonFly__) || __FreeBSD_version < 500000 53 #include <machine/clock.h> /* for DELAY() */ 54 #endif 55 56 #include <sys/bus.h> /* used by smbus and newbus */ 57 #include <machine/bus.h> 58 59 #ifdef __DragonFly__ 60 #include "firewire.h" 61 #include "firewirereg.h" 62 #include "fwmem.h" 63 #include "iec13213.h" 64 #include "iec68113.h" 65 #else 66 #include <dev/firewire/firewire.h> 67 #include <dev/firewire/firewirereg.h> 68 #include <dev/firewire/fwmem.h> 69 #include <dev/firewire/iec13213.h> 70 #include <dev/firewire/iec68113.h> 71 #endif 72 73 struct crom_src_buf { 74 struct crom_src src; 75 struct crom_chunk root; 76 struct crom_chunk vendor; 77 struct crom_chunk hw; 78 }; 79 80 int firewire_debug=0, try_bmr=1, hold_count=0; 81 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 82 "FireWire driver debug flag"); 83 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 84 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 85 "Try to be a bus manager"); 86 SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0, 87 "Number of count of bus resets for removing lost device information"); 88 89 MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 90 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 91 92 #define FW_MAXASYRTY 4 93 94 devclass_t firewire_devclass; 95 96 static void firewire_identify (driver_t *, device_t); 97 static int firewire_probe (device_t); 98 static int firewire_attach (device_t); 99 static int firewire_detach (device_t); 100 static int firewire_resume (device_t); 101 static void firewire_xfer_timeout(void *, int); 102 #if 0 103 static int firewire_shutdown (device_t); 104 #endif 105 static device_t firewire_add_child(device_t, u_int, const char *, int); 106 static void fw_try_bmr (void *); 107 static void fw_try_bmr_callback (struct fw_xfer *); 108 static void fw_asystart (struct fw_xfer *); 109 static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *); 110 static void fw_bus_probe (struct firewire_comm *); 111 static void fw_attach_dev (struct firewire_comm *); 112 static void fw_bus_probe_thread(void *); 113 #ifdef FW_VMACCESS 114 static void fw_vmaccess (struct fw_xfer *); 115 #endif 116 static int fw_bmr (struct firewire_comm *); 117 static void fw_dump_hdr(struct fw_pkt *, char *); 118 119 static device_method_t firewire_methods[] = { 120 /* Device interface */ 121 DEVMETHOD(device_identify, firewire_identify), 122 DEVMETHOD(device_probe, firewire_probe), 123 DEVMETHOD(device_attach, firewire_attach), 124 DEVMETHOD(device_detach, firewire_detach), 125 DEVMETHOD(device_suspend, bus_generic_suspend), 126 DEVMETHOD(device_resume, firewire_resume), 127 DEVMETHOD(device_shutdown, bus_generic_shutdown), 128 129 /* Bus interface */ 130 DEVMETHOD(bus_add_child, firewire_add_child), 131 132 DEVMETHOD_END 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 xfer->tl = -1; 378 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel); 379 STAILQ_INSERT_TAIL(&xfer_timeout, xfer, tlabel); 380 } 381 } 382 mtx_unlock(&fc->tlabel_lock); 383 splx(s); 384 fc->timeout(fc); 385 386 STAILQ_FOREACH_SAFE(xfer, &xfer_timeout, tlabel, txfer) 387 xfer->hand(xfer); 388 } 389 390 #define WATCHDOG_HZ 10 391 static void 392 firewire_watchdog(void *arg) 393 { 394 struct firewire_comm *fc; 395 static int watchdog_clock = 0; 396 397 fc = (struct firewire_comm *)arg; 398 399 /* 400 * At boot stage, the device interrupt is disabled and 401 * We encounter a timeout easily. To avoid this, 402 * ignore clock interrupt for a while. 403 */ 404 if (watchdog_clock > WATCHDOG_HZ * 15) 405 taskqueue_enqueue(fc->taskqueue, &fc->task_timeout); 406 else 407 watchdog_clock ++; 408 409 callout_reset(&fc->timeout_callout, hz / WATCHDOG_HZ, 410 (void *)firewire_watchdog, (void *)fc); 411 } 412 413 /* 414 * The attach routine. 415 */ 416 static int 417 firewire_attach(device_t dev) 418 { 419 int unit; 420 struct firewire_softc *sc = device_get_softc(dev); 421 device_t pa = device_get_parent(dev); 422 struct firewire_comm *fc; 423 424 fc = (struct firewire_comm *)device_get_softc(pa); 425 sc->fc = fc; 426 fc->status = FWBUSNOTREADY; 427 428 unit = device_get_unit(dev); 429 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 430 431 fwdev_makedev(sc); 432 433 fc->crom_src_buf = (struct crom_src_buf *)malloc( 434 sizeof(struct crom_src_buf), 435 M_FW, M_NOWAIT | M_ZERO); 436 if (fc->crom_src_buf == NULL) { 437 device_printf(fc->dev, "%s: Malloc Failure crom src buff\n", __func__); 438 return ENOMEM; 439 } 440 fc->topology_map = (struct fw_topology_map *)malloc( 441 sizeof(struct fw_topology_map), 442 M_FW, M_NOWAIT | M_ZERO); 443 if (fc->topology_map == NULL) { 444 device_printf(fc->dev, "%s: Malloc Failure topology map\n", __func__); 445 free(fc->crom_src_buf, M_FW); 446 return ENOMEM; 447 } 448 fc->speed_map = (struct fw_speed_map *)malloc( 449 sizeof(struct fw_speed_map), 450 M_FW, M_NOWAIT | M_ZERO); 451 if (fc->speed_map == NULL) { 452 device_printf(fc->dev, "%s: Malloc Failure speed map\n", __func__); 453 free(fc->crom_src_buf, M_FW); 454 free(fc->topology_map, M_FW); 455 return ENOMEM; 456 } 457 458 mtx_init(&fc->wait_lock, "fwwait", NULL, MTX_DEF); 459 mtx_init(&fc->tlabel_lock, "fwtlabel", NULL, MTX_DEF); 460 CALLOUT_INIT(&fc->timeout_callout); 461 CALLOUT_INIT(&fc->bmr_callout); 462 CALLOUT_INIT(&fc->busprobe_callout); 463 TASK_INIT(&fc->task_timeout, 0, firewire_xfer_timeout, (void *)fc); 464 465 callout_reset(&sc->fc->timeout_callout, hz, 466 (void *)firewire_watchdog, (void *)sc->fc); 467 468 /* create thread */ 469 kproc_create(fw_bus_probe_thread, (void *)fc, &fc->probe_thread, 470 0, 0, "fw%d_probe", unit); 471 472 /* Locate our children */ 473 bus_generic_probe(dev); 474 475 /* launch attachement of the added children */ 476 bus_generic_attach(dev); 477 478 /* bus_reset */ 479 FW_GLOCK(fc); 480 fw_busreset(fc, FWBUSNOTREADY); 481 FW_GUNLOCK(fc); 482 fc->ibr(fc); 483 484 return 0; 485 } 486 487 /* 488 * Attach it as child. 489 */ 490 static device_t 491 firewire_add_child(device_t dev, u_int order, const char *name, int unit) 492 { 493 device_t child; 494 struct firewire_softc *sc; 495 496 sc = (struct firewire_softc *)device_get_softc(dev); 497 child = device_add_child(dev, name, unit); 498 if (child) { 499 device_set_ivars(child, sc->fc); 500 device_probe_and_attach(child); 501 } 502 503 return child; 504 } 505 506 static int 507 firewire_resume(device_t dev) 508 { 509 struct firewire_softc *sc; 510 511 sc = (struct firewire_softc *)device_get_softc(dev); 512 sc->fc->status = FWBUSNOTREADY; 513 514 bus_generic_resume(dev); 515 516 return(0); 517 } 518 519 /* 520 * Dettach it. 521 */ 522 static int 523 firewire_detach(device_t dev) 524 { 525 struct firewire_softc *sc; 526 struct firewire_comm *fc; 527 struct fw_device *fwdev, *fwdev_next; 528 int err; 529 530 sc = (struct firewire_softc *)device_get_softc(dev); 531 fc = sc->fc; 532 mtx_lock(&fc->wait_lock); 533 fc->status = FWBUSDETACH; 534 wakeup(fc); 535 if (msleep(fc->probe_thread, &fc->wait_lock, PWAIT, "fwthr", hz * 60)) 536 printf("firewire probe thread didn't die\n"); 537 mtx_unlock(&fc->wait_lock); 538 539 if (fc->arq !=0 && fc->arq->maxq > 0) 540 fw_drain_txq(fc); 541 542 if ((err = fwdev_destroydev(sc)) != 0) 543 return err; 544 545 if ((err = bus_generic_detach(dev)) != 0) 546 return err; 547 548 callout_stop(&fc->timeout_callout); 549 callout_stop(&fc->bmr_callout); 550 callout_stop(&fc->busprobe_callout); 551 552 /* XXX xfer_free and untimeout on all xfers */ 553 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; 554 fwdev = fwdev_next) { 555 fwdev_next = STAILQ_NEXT(fwdev, link); 556 free(fwdev, M_FW); 557 } 558 free(fc->topology_map, M_FW); 559 free(fc->speed_map, M_FW); 560 free(fc->crom_src_buf, M_FW); 561 562 mtx_destroy(&fc->tlabel_lock); 563 mtx_destroy(&fc->wait_lock); 564 return(0); 565 } 566 #if 0 567 static int 568 firewire_shutdown( device_t dev ) 569 { 570 return 0; 571 } 572 #endif 573 574 575 static void 576 fw_xferq_drain(struct fw_xferq *xferq) 577 { 578 struct fw_xfer *xfer; 579 580 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 581 STAILQ_REMOVE_HEAD(&xferq->q, link); 582 #if 0 583 xferq->queued --; 584 #endif 585 xfer->resp = EAGAIN; 586 xfer->flag = FWXF_SENTERR; 587 fw_xfer_done(xfer); 588 } 589 } 590 591 void 592 fw_drain_txq(struct firewire_comm *fc) 593 { 594 struct fw_xfer *xfer, *txfer; 595 STAILQ_HEAD(, fw_xfer) xfer_drain; 596 int i; 597 598 STAILQ_INIT(&xfer_drain); 599 600 FW_GLOCK(fc); 601 fw_xferq_drain(fc->atq); 602 fw_xferq_drain(fc->ats); 603 for(i = 0; i < fc->nisodma; i++) 604 fw_xferq_drain(fc->it[i]); 605 FW_GUNLOCK(fc); 606 607 mtx_lock(&fc->tlabel_lock); 608 for (i = 0; i < 0x40; i ++) 609 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 610 if (firewire_debug) 611 printf("tl=%d flag=%d\n", i, xfer->flag); 612 xfer->tl = -1; 613 xfer->resp = EAGAIN; 614 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel); 615 STAILQ_INSERT_TAIL(&xfer_drain, xfer, tlabel); 616 } 617 mtx_unlock(&fc->tlabel_lock); 618 619 STAILQ_FOREACH_SAFE(xfer, &xfer_drain, tlabel, txfer) 620 xfer->hand(xfer); 621 } 622 623 static void 624 fw_reset_csr(struct firewire_comm *fc) 625 { 626 int i; 627 628 CSRARC(fc, STATE_CLEAR) 629 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 630 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 631 CSRARC(fc, NODE_IDS) = 0x3f; 632 633 CSRARC(fc, TOPO_MAP + 8) = 0; 634 fc->irm = -1; 635 636 fc->max_node = -1; 637 638 for(i = 2; i < 0x100/4 - 2 ; i++){ 639 CSRARC(fc, SPED_MAP + i * 4) = 0; 640 } 641 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 642 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 643 CSRARC(fc, RESET_START) = 0; 644 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 645 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 646 CSRARC(fc, CYCLE_TIME) = 0x0; 647 CSRARC(fc, BUS_TIME) = 0x0; 648 CSRARC(fc, BUS_MGR_ID) = 0x3f; 649 CSRARC(fc, BANDWIDTH_AV) = 4915; 650 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 651 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 652 CSRARC(fc, IP_CHANNELS) = (1 << 31); 653 654 CSRARC(fc, CONF_ROM) = 0x04 << 24; 655 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 656 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 657 1 << 28 | 0xff << 16 | 0x09 << 8; 658 CSRARC(fc, CONF_ROM + 0xc) = 0; 659 660 /* DV depend CSRs see blue book */ 661 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 662 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 663 664 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 665 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 666 } 667 668 static void 669 fw_init_crom(struct firewire_comm *fc) 670 { 671 struct crom_src *src; 672 673 src = &fc->crom_src_buf->src; 674 bzero(src, sizeof(struct crom_src)); 675 676 /* BUS info sample */ 677 src->hdr.info_len = 4; 678 679 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 680 681 src->businfo.irmc = 1; 682 src->businfo.cmc = 1; 683 src->businfo.isc = 1; 684 src->businfo.bmc = 1; 685 src->businfo.pmc = 0; 686 src->businfo.cyc_clk_acc = 100; 687 src->businfo.max_rec = fc->maxrec; 688 src->businfo.max_rom = MAXROM_4; 689 #define FW_GENERATION_CHANGEABLE 2 690 src->businfo.generation = FW_GENERATION_CHANGEABLE; 691 src->businfo.link_spd = fc->speed; 692 693 src->businfo.eui64.hi = fc->eui.hi; 694 src->businfo.eui64.lo = fc->eui.lo; 695 696 STAILQ_INIT(&src->chunk_list); 697 698 fc->crom_src = src; 699 fc->crom_root = &fc->crom_src_buf->root; 700 } 701 702 static void 703 fw_reset_crom(struct firewire_comm *fc) 704 { 705 struct crom_src_buf *buf; 706 struct crom_src *src; 707 struct crom_chunk *root; 708 709 buf = fc->crom_src_buf; 710 src = fc->crom_src; 711 root = fc->crom_root; 712 713 STAILQ_INIT(&src->chunk_list); 714 715 bzero(root, sizeof(struct crom_chunk)); 716 crom_add_chunk(src, NULL, root, 0); 717 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 718 /* private company_id */ 719 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 720 #ifdef __DragonFly__ 721 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 722 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version); 723 #else 724 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 725 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 726 #endif 727 mtx_lock(&prison0.pr_mtx); 728 crom_add_simple_text(src, root, &buf->hw, prison0.pr_hostname); 729 mtx_unlock(&prison0.pr_mtx); 730 } 731 732 /* 733 * Called after bus reset. 734 */ 735 void 736 fw_busreset(struct firewire_comm *fc, uint32_t new_status) 737 { 738 struct firewire_dev_comm *fdc; 739 struct crom_src *src; 740 device_t *devlistp; 741 uint32_t *newrom; 742 int i, devcnt; 743 744 FW_GLOCK_ASSERT(fc); 745 if (fc->status == FWBUSMGRELECT) 746 callout_stop(&fc->bmr_callout); 747 748 fc->status = new_status; 749 fw_reset_csr(fc); 750 751 if (fc->status == FWBUSNOTREADY) 752 fw_init_crom(fc); 753 754 fw_reset_crom(fc); 755 756 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 757 for( i = 0 ; i < devcnt ; i++) 758 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 759 fdc = device_get_softc(devlistp[i]); 760 if (fdc->post_busreset != NULL) 761 fdc->post_busreset(fdc); 762 } 763 free(devlistp, M_TEMP); 764 } 765 766 src = &fc->crom_src_buf->src; 767 /* 768 * If the old config rom needs to be overwritten, 769 * bump the businfo.generation indicator to 770 * indicate that we need to be reprobed 771 * See 1394a-2000 8.3.2.5.4 for more details. 772 * generation starts at 2 and rolls over at 0xF 773 * back to 2. 774 * 775 * A generation of 0 indicates a device 776 * that is not 1394a-2000 compliant. 777 * A generation of 1 indicates a device that 778 * does not change it's Bus Info Block or 779 * Configuration ROM. 780 */ 781 #define FW_MAX_GENERATION 0xF 782 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 783 src = &fc->crom_src_buf->src; 784 crom_load(src, newrom, CROMSIZE); 785 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 786 if ( src->businfo.generation++ > FW_MAX_GENERATION ) 787 src->businfo.generation = FW_GENERATION_CHANGEABLE; 788 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 789 } 790 free(newrom, M_FW); 791 792 } 793 794 /* Call once after reboot */ 795 void fw_init(struct firewire_comm *fc) 796 { 797 int i; 798 #ifdef FW_VMACCESS 799 struct fw_xfer *xfer; 800 struct fw_bind *fwb; 801 #endif 802 803 fc->arq->queued = 0; 804 fc->ars->queued = 0; 805 fc->atq->queued = 0; 806 fc->ats->queued = 0; 807 808 fc->arq->buf = NULL; 809 fc->ars->buf = NULL; 810 fc->atq->buf = NULL; 811 fc->ats->buf = NULL; 812 813 fc->arq->flag = 0; 814 fc->ars->flag = 0; 815 fc->atq->flag = 0; 816 fc->ats->flag = 0; 817 818 STAILQ_INIT(&fc->atq->q); 819 STAILQ_INIT(&fc->ats->q); 820 821 for( i = 0 ; i < fc->nisodma ; i ++ ){ 822 fc->it[i]->queued = 0; 823 fc->ir[i]->queued = 0; 824 825 fc->it[i]->start = NULL; 826 fc->ir[i]->start = NULL; 827 828 fc->it[i]->buf = NULL; 829 fc->ir[i]->buf = NULL; 830 831 fc->it[i]->flag = FWXFERQ_STREAM; 832 fc->ir[i]->flag = FWXFERQ_STREAM; 833 834 STAILQ_INIT(&fc->it[i]->q); 835 STAILQ_INIT(&fc->ir[i]->q); 836 } 837 838 fc->arq->maxq = FWMAXQUEUE; 839 fc->ars->maxq = FWMAXQUEUE; 840 fc->atq->maxq = FWMAXQUEUE; 841 fc->ats->maxq = FWMAXQUEUE; 842 843 for( i = 0 ; i < fc->nisodma ; i++){ 844 fc->ir[i]->maxq = FWMAXQUEUE; 845 fc->it[i]->maxq = FWMAXQUEUE; 846 } 847 848 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 849 CSRARC(fc, TOPO_MAP + 4) = 1; 850 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 851 CSRARC(fc, SPED_MAP + 4) = 1; 852 853 STAILQ_INIT(&fc->devices); 854 855 /* Initialize Async handlers */ 856 STAILQ_INIT(&fc->binds); 857 for( i = 0 ; i < 0x40 ; i++){ 858 STAILQ_INIT(&fc->tlabels[i]); 859 } 860 861 /* DV depend CSRs see blue book */ 862 #if 0 863 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 864 CSRARC(fc, oPCR) = 0x8000007a; 865 for(i = 4 ; i < 0x7c/4 ; i+=4){ 866 CSRARC(fc, i + oPCR) = 0x8000007a; 867 } 868 869 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 870 CSRARC(fc, iPCR) = 0x803f0000; 871 for(i = 4 ; i < 0x7c/4 ; i+=4){ 872 CSRARC(fc, i + iPCR) = 0x0; 873 } 874 #endif 875 876 fc->crom_src_buf = NULL; 877 878 #ifdef FW_VMACCESS 879 xfer = fw_xfer_alloc(); 880 if(xfer == NULL) return; 881 882 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 883 if(fwb == NULL){ 884 fw_xfer_free(xfer); 885 return; 886 } 887 xfer->hand = fw_vmaccess; 888 xfer->fc = fc; 889 xfer->sc = NULL; 890 891 fwb->start_hi = 0x2; 892 fwb->start_lo = 0; 893 fwb->addrlen = 0xffffffff; 894 fwb->xfer = xfer; 895 fw_bindadd(fc, fwb); 896 #endif 897 } 898 899 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 900 ((fwb)->end < (addr))?1:0) 901 902 /* 903 * To lookup bound process from IEEE1394 address. 904 */ 905 struct fw_bind * 906 fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 907 { 908 u_int64_t addr; 909 struct fw_bind *tfw, *r = NULL; 910 911 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 912 FW_GLOCK(fc); 913 STAILQ_FOREACH(tfw, &fc->binds, fclist) 914 if (BIND_CMP(addr, tfw) == 0) { 915 r = tfw; 916 break; 917 } 918 FW_GUNLOCK(fc); 919 return(r); 920 } 921 922 /* 923 * To bind IEEE1394 address block to process. 924 */ 925 int 926 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 927 { 928 struct fw_bind *tfw, *prev = NULL; 929 int r = 0; 930 931 if (fwb->start > fwb->end) { 932 printf("%s: invalid range\n", __func__); 933 return EINVAL; 934 } 935 936 FW_GLOCK(fc); 937 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 938 if (fwb->end < tfw->start) 939 break; 940 prev = tfw; 941 } 942 if (prev == NULL) 943 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 944 else if (prev->end < fwb->start) 945 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 946 else { 947 printf("%s: bind failed\n", __func__); 948 r = EBUSY; 949 } 950 FW_GUNLOCK(fc); 951 return (r); 952 } 953 954 /* 955 * To free IEEE1394 address block. 956 */ 957 int 958 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 959 { 960 #if 0 961 struct fw_xfer *xfer, *next; 962 #endif 963 struct fw_bind *tfw; 964 int s; 965 966 s = splfw(); 967 FW_GLOCK(fc); 968 STAILQ_FOREACH(tfw, &fc->binds, fclist) 969 if (tfw == fwb) { 970 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 971 goto found; 972 } 973 974 printf("%s: no such binding\n", __func__); 975 FW_GUNLOCK(fc); 976 splx(s); 977 return (1); 978 found: 979 #if 0 980 /* shall we do this? */ 981 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 982 next = STAILQ_NEXT(xfer, link); 983 fw_xfer_free(xfer); 984 } 985 STAILQ_INIT(&fwb->xferlist); 986 #endif 987 FW_GUNLOCK(fc); 988 989 splx(s); 990 return 0; 991 } 992 993 int 994 fw_xferlist_add(struct fw_xferlist *q, struct malloc_type *type, 995 int slen, int rlen, int n, 996 struct firewire_comm *fc, void *sc, void (*hand)(struct fw_xfer *)) 997 { 998 int i, s; 999 struct fw_xfer *xfer; 1000 1001 for (i = 0; i < n; i++) { 1002 xfer = fw_xfer_alloc_buf(type, slen, rlen); 1003 if (xfer == NULL) 1004 return (n); 1005 xfer->fc = fc; 1006 xfer->sc = sc; 1007 xfer->hand = hand; 1008 s = splfw(); 1009 STAILQ_INSERT_TAIL(q, xfer, link); 1010 splx(s); 1011 } 1012 return (n); 1013 } 1014 1015 void 1016 fw_xferlist_remove(struct fw_xferlist *q) 1017 { 1018 struct fw_xfer *xfer, *next; 1019 1020 for (xfer = STAILQ_FIRST(q); xfer != NULL; xfer = next) { 1021 next = STAILQ_NEXT(xfer, link); 1022 fw_xfer_free_buf(xfer); 1023 } 1024 STAILQ_INIT(q); 1025 } 1026 /* 1027 * dump packet header 1028 */ 1029 static void 1030 fw_dump_hdr(struct fw_pkt *fp, char *prefix) 1031 { 1032 printf("%s: dst=0x%02x tl=0x%02x rt=%d tcode=0x%x pri=0x%x " 1033 "src=0x%03x\n", prefix, 1034 fp->mode.hdr.dst & 0x3f, 1035 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tlrt & 3, 1036 fp->mode.hdr.tcode, fp->mode.hdr.pri, 1037 fp->mode.hdr.src); 1038 } 1039 1040 /* 1041 * To free transaction label. 1042 */ 1043 static void 1044 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 1045 { 1046 struct fw_xfer *txfer; 1047 int s; 1048 1049 s = splfw(); 1050 mtx_lock(&fc->tlabel_lock); 1051 if (xfer->tl < 0) { 1052 mtx_unlock(&fc->tlabel_lock); 1053 return; 1054 } 1055 #if 1 /* make sure the label is allocated */ 1056 STAILQ_FOREACH(txfer, &fc->tlabels[xfer->tl], tlabel) 1057 if(txfer == xfer) 1058 break; 1059 if (txfer == NULL) { 1060 printf("%s: the xfer is not in the queue " 1061 "(tlabel=%d, flag=0x%x)\n", 1062 __FUNCTION__, xfer->tl, xfer->flag); 1063 fw_dump_hdr(&xfer->send.hdr, "send"); 1064 fw_dump_hdr(&xfer->recv.hdr, "recv"); 1065 kdb_backtrace(); 1066 mtx_unlock(&fc->tlabel_lock); 1067 splx(s); 1068 return; 1069 } 1070 #endif 1071 1072 STAILQ_REMOVE(&fc->tlabels[xfer->tl], xfer, fw_xfer, tlabel); 1073 xfer->tl = -1; 1074 mtx_unlock(&fc->tlabel_lock); 1075 splx(s); 1076 return; 1077 } 1078 1079 /* 1080 * To obtain XFER structure by transaction label. 1081 */ 1082 static struct fw_xfer * 1083 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel, int tcode) 1084 { 1085 struct fw_xfer *xfer; 1086 int s = splfw(); 1087 int req; 1088 1089 mtx_lock(&fc->tlabel_lock); 1090 STAILQ_FOREACH(xfer, &fc->tlabels[tlabel], tlabel) 1091 if(xfer->send.hdr.mode.hdr.dst == node) { 1092 mtx_unlock(&fc->tlabel_lock); 1093 splx(s); 1094 KASSERT(xfer->tl == tlabel, 1095 ("xfer->tl 0x%x != 0x%x", xfer->tl, tlabel)); 1096 /* extra sanity check */ 1097 req = xfer->send.hdr.mode.hdr.tcode; 1098 if (xfer->fc->tcode[req].valid_res != tcode) { 1099 printf("%s: invalid response tcode " 1100 "(0x%x for 0x%x)\n", __FUNCTION__, 1101 tcode, req); 1102 return(NULL); 1103 } 1104 1105 if (firewire_debug > 2) 1106 printf("fw_tl2xfer: found tl=%d\n", tlabel); 1107 return(xfer); 1108 } 1109 mtx_unlock(&fc->tlabel_lock); 1110 if (firewire_debug > 1) 1111 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 1112 splx(s); 1113 return(NULL); 1114 } 1115 1116 /* 1117 * To allocate IEEE1394 XFER structure. 1118 */ 1119 struct fw_xfer * 1120 fw_xfer_alloc(struct malloc_type *type) 1121 { 1122 struct fw_xfer *xfer; 1123 1124 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 1125 if (xfer == NULL) 1126 return xfer; 1127 1128 xfer->malloc = type; 1129 1130 return xfer; 1131 } 1132 1133 struct fw_xfer * 1134 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 1135 { 1136 struct fw_xfer *xfer; 1137 1138 xfer = fw_xfer_alloc(type); 1139 if (xfer == NULL) 1140 return(NULL); 1141 xfer->send.pay_len = send_len; 1142 xfer->recv.pay_len = recv_len; 1143 if (send_len > 0) { 1144 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 1145 if (xfer->send.payload == NULL) { 1146 fw_xfer_free(xfer); 1147 return(NULL); 1148 } 1149 } 1150 if (recv_len > 0) { 1151 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 1152 if (xfer->recv.payload == NULL) { 1153 if (xfer->send.payload != NULL) 1154 free(xfer->send.payload, type); 1155 fw_xfer_free(xfer); 1156 return(NULL); 1157 } 1158 } 1159 return(xfer); 1160 } 1161 1162 /* 1163 * IEEE1394 XFER post process. 1164 */ 1165 void 1166 fw_xfer_done(struct fw_xfer *xfer) 1167 { 1168 if (xfer->hand == NULL) { 1169 printf("hand == NULL\n"); 1170 return; 1171 } 1172 1173 if (xfer->fc == NULL) 1174 panic("fw_xfer_done: why xfer->fc is NULL?"); 1175 1176 fw_tl_free(xfer->fc, xfer); 1177 xfer->hand(xfer); 1178 } 1179 1180 void 1181 fw_xfer_unload(struct fw_xfer* xfer) 1182 { 1183 int s; 1184 1185 if(xfer == NULL ) return; 1186 if(xfer->flag & FWXF_INQ){ 1187 printf("fw_xfer_free FWXF_INQ\n"); 1188 s = splfw(); 1189 FW_GLOCK(xfer->fc); 1190 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1191 #if 0 1192 xfer->q->queued --; 1193 #endif 1194 FW_GUNLOCK(xfer->fc); 1195 splx(s); 1196 } 1197 if (xfer->fc != NULL) { 1198 /* 1199 * Ensure that any tlabel owner can't access this 1200 * xfer after it's freed. 1201 */ 1202 fw_tl_free(xfer->fc, xfer); 1203 #if 1 1204 if(xfer->flag & FWXF_START) 1205 /* 1206 * This could happen if: 1207 * 1. We call fwohci_arcv() before fwohci_txd(). 1208 * 2. firewire_watch() is called. 1209 */ 1210 printf("fw_xfer_free FWXF_START\n"); 1211 #endif 1212 } 1213 xfer->flag = FWXF_INIT; 1214 xfer->resp = 0; 1215 } 1216 /* 1217 * To free IEEE1394 XFER structure. 1218 */ 1219 void 1220 fw_xfer_free_buf( struct fw_xfer* xfer) 1221 { 1222 if (xfer == NULL) { 1223 printf("%s: xfer == NULL\n", __func__); 1224 return; 1225 } 1226 fw_xfer_unload(xfer); 1227 if(xfer->send.payload != NULL){ 1228 free(xfer->send.payload, xfer->malloc); 1229 } 1230 if(xfer->recv.payload != NULL){ 1231 free(xfer->recv.payload, xfer->malloc); 1232 } 1233 free(xfer, xfer->malloc); 1234 } 1235 1236 void 1237 fw_xfer_free( struct fw_xfer* xfer) 1238 { 1239 if (xfer == NULL) { 1240 printf("%s: xfer == NULL\n", __func__); 1241 return; 1242 } 1243 fw_xfer_unload(xfer); 1244 free(xfer, xfer->malloc); 1245 } 1246 1247 void 1248 fw_asy_callback_free(struct fw_xfer *xfer) 1249 { 1250 #if 0 1251 printf("asyreq done flag=0x%02x resp=%d\n", 1252 xfer->flag, xfer->resp); 1253 #endif 1254 fw_xfer_free(xfer); 1255 } 1256 1257 /* 1258 * To configure PHY. 1259 */ 1260 static void 1261 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1262 { 1263 struct fw_xfer *xfer; 1264 struct fw_pkt *fp; 1265 1266 fc->status = FWBUSPHYCONF; 1267 1268 xfer = fw_xfer_alloc(M_FWXFER); 1269 if (xfer == NULL) 1270 return; 1271 xfer->fc = fc; 1272 xfer->hand = fw_asy_callback_free; 1273 1274 fp = &xfer->send.hdr; 1275 fp->mode.ld[1] = 0; 1276 if (root_node >= 0) 1277 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1278 if (gap_count >= 0) 1279 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1280 fp->mode.ld[2] = ~fp->mode.ld[1]; 1281 /* XXX Dangerous, how to pass PHY packet to device driver */ 1282 fp->mode.common.tcode |= FWTCODE_PHY; 1283 1284 if (firewire_debug) 1285 device_printf(fc->bdev, "%s: root_node=%d gap_count=%d\n", 1286 __func__, root_node, gap_count); 1287 fw_asyreq(fc, -1, xfer); 1288 } 1289 1290 /* 1291 * Dump self ID. 1292 */ 1293 static void 1294 fw_print_sid(uint32_t sid) 1295 { 1296 union fw_self_id *s; 1297 s = (union fw_self_id *) &sid; 1298 if ( s->p0.sequel ) { 1299 if ( s->p1.sequence_num == FW_SELF_ID_PAGE0 ) { 1300 printf("node:%d p3:%d p4:%d p5:%d p6:%d p7:%d" 1301 "p8:%d p9:%d p10:%d\n", 1302 s->p1.phy_id, s->p1.port3, s->p1.port4, 1303 s->p1.port5, s->p1.port6, s->p1.port7, 1304 s->p1.port8, s->p1.port9, s->p1.port10); 1305 } else if (s->p2.sequence_num == FW_SELF_ID_PAGE1 ){ 1306 printf("node:%d p11:%d p12:%d p13:%d p14:%d p15:%d\n", 1307 s->p2.phy_id, s->p2.port11, s->p2.port12, 1308 s->p2.port13, s->p2.port14, s->p2.port15); 1309 } else { 1310 printf("node:%d Unknown Self ID Page number %d\n", 1311 s->p1.phy_id, s->p1.sequence_num); 1312 } 1313 } else { 1314 printf("node:%d link:%d gap:%d spd:%d con:%d pwr:%d" 1315 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1316 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1317 s->p0.phy_speed, s->p0.contender, 1318 s->p0.power_class, s->p0.port0, s->p0.port1, 1319 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1320 } 1321 } 1322 1323 /* 1324 * To receive self ID. 1325 */ 1326 void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1327 { 1328 uint32_t *p; 1329 union fw_self_id *self_id; 1330 u_int i, j, node, c_port = 0, i_branch = 0; 1331 1332 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1333 fc->max_node = fc->nodeid & 0x3f; 1334 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1335 fc->status = FWBUSCYMELECT; 1336 fc->topology_map->crc_len = 2; 1337 fc->topology_map->generation ++; 1338 fc->topology_map->self_id_count = 0; 1339 fc->topology_map->node_count = 0; 1340 fc->speed_map->generation ++; 1341 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1342 self_id = &fc->topology_map->self_id[0]; 1343 for(i = 0; i < fc->sid_cnt; i ++){ 1344 if (sid[1] != ~sid[0]) { 1345 device_printf(fc->bdev, "%s: ERROR invalid self-id packet\n", 1346 __func__); 1347 sid += 2; 1348 continue; 1349 } 1350 *self_id = *((union fw_self_id *)sid); 1351 fc->topology_map->crc_len++; 1352 if(self_id->p0.sequel == 0){ 1353 fc->topology_map->node_count ++; 1354 c_port = 0; 1355 if (firewire_debug) 1356 fw_print_sid(sid[0]); 1357 node = self_id->p0.phy_id; 1358 if(fc->max_node < node){ 1359 fc->max_node = self_id->p0.phy_id; 1360 } 1361 /* XXX I'm not sure this is the right speed_map */ 1362 fc->speed_map->speed[node][node] 1363 = self_id->p0.phy_speed; 1364 for (j = 0; j < node; j ++) { 1365 fc->speed_map->speed[j][node] 1366 = fc->speed_map->speed[node][j] 1367 = min(fc->speed_map->speed[j][j], 1368 self_id->p0.phy_speed); 1369 } 1370 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1371 (self_id->p0.link_active && self_id->p0.contender)) { 1372 fc->irm = self_id->p0.phy_id; 1373 } 1374 if(self_id->p0.port0 >= 0x2){ 1375 c_port++; 1376 } 1377 if(self_id->p0.port1 >= 0x2){ 1378 c_port++; 1379 } 1380 if(self_id->p0.port2 >= 0x2){ 1381 c_port++; 1382 } 1383 } 1384 if(c_port > 2){ 1385 i_branch += (c_port - 2); 1386 } 1387 sid += 2; 1388 self_id++; 1389 fc->topology_map->self_id_count ++; 1390 } 1391 /* CRC */ 1392 fc->topology_map->crc = fw_crc16( 1393 (uint32_t *)&fc->topology_map->generation, 1394 fc->topology_map->crc_len * 4); 1395 fc->speed_map->crc = fw_crc16( 1396 (uint32_t *)&fc->speed_map->generation, 1397 fc->speed_map->crc_len * 4); 1398 /* byteswap and copy to CSR */ 1399 p = (uint32_t *)fc->topology_map; 1400 for (i = 0; i <= fc->topology_map->crc_len; i++) 1401 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1402 p = (uint32_t *)fc->speed_map; 1403 CSRARC(fc, SPED_MAP) = htonl(*p++); 1404 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1405 /* don't byte-swap uint8_t array */ 1406 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1407 1408 fc->max_hop = fc->max_node - i_branch; 1409 device_printf(fc->bdev, "%d nodes, maxhop <= %d %s irm(%d) %s\n", 1410 fc->max_node + 1, fc->max_hop, 1411 (fc->irm == -1) ? "Not IRM capable" : "cable IRM", 1412 fc->irm, 1413 (fc->irm == fc->nodeid) ? " (me) " : ""); 1414 1415 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1416 if (fc->irm == fc->nodeid) { 1417 fc->status = FWBUSMGRDONE; 1418 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1419 fw_bmr(fc); 1420 } else { 1421 fc->status = FWBUSMGRELECT; 1422 callout_reset(&fc->bmr_callout, hz/8, 1423 (void *)fw_try_bmr, (void *)fc); 1424 } 1425 } else 1426 fc->status = FWBUSMGRDONE; 1427 1428 callout_reset(&fc->busprobe_callout, hz/4, 1429 (void *)fw_bus_probe, (void *)fc); 1430 } 1431 1432 /* 1433 * To probe devices on the IEEE1394 bus. 1434 */ 1435 static void 1436 fw_bus_probe(struct firewire_comm *fc) 1437 { 1438 int s; 1439 struct fw_device *fwdev; 1440 1441 s = splfw(); 1442 fc->status = FWBUSEXPLORE; 1443 1444 /* Invalidate all devices, just after bus reset. */ 1445 if (firewire_debug) 1446 device_printf(fc->bdev, "%s:" 1447 "iterate and invalidate all nodes\n", 1448 __func__); 1449 STAILQ_FOREACH(fwdev, &fc->devices, link) 1450 if (fwdev->status != FWDEVINVAL) { 1451 fwdev->status = FWDEVINVAL; 1452 fwdev->rcnt = 0; 1453 if (firewire_debug) 1454 device_printf(fc->bdev, "%s:" 1455 "Invalidate Dev ID: %08x%08x\n", 1456 __func__, fwdev->eui.hi, fwdev->eui.lo); 1457 } else { 1458 if (firewire_debug) 1459 device_printf(fc->bdev, "%s:" 1460 "Dev ID: %08x%08x already invalid\n", 1461 __func__, fwdev->eui.hi, fwdev->eui.lo); 1462 } 1463 splx(s); 1464 1465 wakeup((void *)fc); 1466 } 1467 1468 static int 1469 fw_explore_read_quads(struct fw_device *fwdev, int offset, 1470 uint32_t *quad, int length) 1471 { 1472 struct fw_xfer *xfer; 1473 uint32_t tmp; 1474 int i, error; 1475 1476 for (i = 0; i < length; i ++, offset += sizeof(uint32_t)) { 1477 xfer = fwmem_read_quad(fwdev, NULL, -1, 1478 0xffff, 0xf0000000 | offset, (void *)&tmp, 1479 fw_xferwake); 1480 if (xfer == NULL) 1481 return (-1); 1482 fw_xferwait(xfer); 1483 1484 if (xfer->resp == 0) 1485 quad[i] = ntohl(tmp); 1486 1487 error = xfer->resp; 1488 fw_xfer_free(xfer); 1489 if (error) 1490 return (error); 1491 } 1492 return (0); 1493 } 1494 1495 1496 static int 1497 fw_explore_csrblock(struct fw_device *fwdev, int offset, int recur) 1498 { 1499 int err, i, off; 1500 struct csrdirectory *dir; 1501 struct csrreg *reg; 1502 1503 dir = (struct csrdirectory *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1504 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1505 (uint32_t *)dir, 1); 1506 if (err) 1507 return (-1); 1508 1509 offset += sizeof(uint32_t); 1510 reg = (struct csrreg *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1511 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1512 (uint32_t *)reg, dir->crc_len); 1513 if (err) 1514 return (-1); 1515 1516 /* XXX check CRC */ 1517 1518 off = CSRROMOFF + offset + sizeof(uint32_t) * (dir->crc_len - 1); 1519 if (fwdev->rommax < off) 1520 fwdev->rommax = off; 1521 1522 if (recur == 0) 1523 return (0); 1524 1525 for (i = 0; i < dir->crc_len; i ++, offset += sizeof(uint32_t)) { 1526 if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_D) 1527 recur = 1; 1528 else if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_L) 1529 recur = 0; 1530 else 1531 continue; 1532 1533 off = offset + reg[i].val * sizeof(uint32_t); 1534 if (off > CROMSIZE) { 1535 printf("%s: invalid offset %d\n", __FUNCTION__, off); 1536 return(-1); 1537 } 1538 err = fw_explore_csrblock(fwdev, off, recur); 1539 if (err) 1540 return (-1); 1541 } 1542 return (0); 1543 } 1544 1545 static int 1546 fw_explore_node(struct fw_device *dfwdev) 1547 { 1548 struct firewire_comm *fc; 1549 struct fw_device *fwdev, *pfwdev, *tfwdev; 1550 uint32_t *csr; 1551 struct csrhdr *hdr; 1552 struct bus_info *binfo; 1553 int err, node; 1554 uint32_t speed_test = 0; 1555 1556 fc = dfwdev->fc; 1557 csr = dfwdev->csrrom; 1558 node = dfwdev->dst; 1559 1560 /* First quad */ 1561 err = fw_explore_read_quads(dfwdev, CSRROMOFF, &csr[0], 1); 1562 if (err) { 1563 device_printf(fc->bdev, "%s: node%d: explore_read_quads failure\n", 1564 __func__, node); 1565 dfwdev->status = FWDEVINVAL; 1566 return (-1); 1567 } 1568 hdr = (struct csrhdr *)&csr[0]; 1569 if (hdr->info_len != 4) { 1570 if (firewire_debug) 1571 device_printf(fc->bdev, "%s: node%d: wrong bus info len(%d)\n", 1572 __func__, node, hdr->info_len); 1573 dfwdev->status = FWDEVINVAL; 1574 return (-1); 1575 } 1576 1577 /* bus info */ 1578 err = fw_explore_read_quads(dfwdev, CSRROMOFF + 0x04, &csr[1], 4); 1579 if (err) { 1580 device_printf(fc->bdev, "%s: node%d: error reading 0x04\n", 1581 __func__, node); 1582 dfwdev->status = FWDEVINVAL; 1583 return (-1); 1584 } 1585 binfo = (struct bus_info *)&csr[1]; 1586 if (binfo->bus_name != CSR_BUS_NAME_IEEE1394) { 1587 device_printf(fc->bdev, "%s: node%d: invalid bus name 0x%08x\n", 1588 __func__, node, binfo->bus_name); 1589 dfwdev->status = FWDEVINVAL; 1590 return (-1); 1591 } 1592 1593 if (firewire_debug) 1594 device_printf(fc->bdev, "%s: node(%d) BUS INFO BLOCK:\n" 1595 "irmc(%d) cmc(%d) isc(%d) bmc(%d) pmc(%d) " 1596 "cyc_clk_acc(%d) max_rec(%d) max_rom(%d) " 1597 "generation(%d) link_spd(%d)\n", 1598 __func__, node, 1599 binfo->irmc, binfo->cmc, binfo->isc, 1600 binfo->bmc, binfo->pmc, binfo->cyc_clk_acc, 1601 binfo->max_rec, binfo->max_rom, 1602 binfo->generation, binfo->link_spd); 1603 1604 STAILQ_FOREACH(fwdev, &fc->devices, link) 1605 if (FW_EUI64_EQUAL(fwdev->eui, binfo->eui64)) 1606 break; 1607 if (fwdev == NULL) { 1608 /* new device */ 1609 fwdev = malloc(sizeof(struct fw_device), M_FW, 1610 M_NOWAIT | M_ZERO); 1611 if (fwdev == NULL) { 1612 device_printf(fc->bdev, "%s: node%d: no memory\n", 1613 __func__, node); 1614 return (-1); 1615 } 1616 fwdev->fc = fc; 1617 fwdev->eui = binfo->eui64; 1618 fwdev->dst = dfwdev->dst; 1619 fwdev->maxrec = dfwdev->maxrec; 1620 fwdev->status = dfwdev->status; 1621 1622 /* 1623 * Pre-1394a-2000 didn't have link_spd in 1624 * the Bus Info block, so try and use the 1625 * speed map value. 1626 * 1394a-2000 compliant devices only use 1627 * the Bus Info Block link spd value, so 1628 * ignore the speed map alltogether. SWB 1629 */ 1630 if ( binfo->link_spd == FWSPD_S100 /* 0 */) { 1631 device_printf(fc->bdev, "%s: " 1632 "Pre 1394a-2000 detected\n", 1633 __func__); 1634 fwdev->speed = fc->speed_map->speed[fc->nodeid][node]; 1635 } else 1636 fwdev->speed = binfo->link_spd; 1637 /* 1638 * Test this speed with a read to the CSRROM. 1639 * If it fails, slow down the speed and retry. 1640 */ 1641 while (fwdev->speed > FWSPD_S100 /* 0 */) { 1642 err = fw_explore_read_quads(fwdev, CSRROMOFF, 1643 &speed_test, 1); 1644 if (err) { 1645 device_printf(fc->bdev, "%s: fwdev->speed(%s)" 1646 " decremented due to negotiation\n", 1647 __func__, 1648 linkspeed[fwdev->speed]); 1649 fwdev->speed--; 1650 } else 1651 break; 1652 1653 } 1654 1655 /* 1656 * If the fwdev is not found in the 1657 * fc->devices TAILQ, then we will add it. 1658 */ 1659 pfwdev = NULL; 1660 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1661 if (tfwdev->eui.hi > fwdev->eui.hi || 1662 (tfwdev->eui.hi == fwdev->eui.hi && 1663 tfwdev->eui.lo > fwdev->eui.lo)) 1664 break; 1665 pfwdev = tfwdev; 1666 } 1667 if (pfwdev == NULL) 1668 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1669 else 1670 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1671 1672 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1673 linkspeed[fwdev->speed], 1674 fwdev->eui.hi, fwdev->eui.lo); 1675 } else { 1676 fwdev->dst = node; 1677 fwdev->status = FWDEVINIT; 1678 /* unchanged ? */ 1679 if (bcmp(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5) == 0) { 1680 if (firewire_debug) 1681 device_printf(fc->dev, "node%d: crom unchanged\n", node); 1682 return (0); 1683 } 1684 } 1685 1686 bzero(&fwdev->csrrom[0], CROMSIZE); 1687 1688 /* copy first quad and bus info block */ 1689 bcopy(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5); 1690 fwdev->rommax = CSRROMOFF + sizeof(uint32_t) * 4; 1691 1692 err = fw_explore_csrblock(fwdev, 0x14, 1); /* root directory */ 1693 1694 if (err) { 1695 if (firewire_debug) 1696 device_printf(fc->dev, "%s: explore csrblock failed err(%d)\n", 1697 __func__, err); 1698 fwdev->status = FWDEVINVAL; 1699 fwdev->csrrom[0] = 0; 1700 } 1701 return (err); 1702 1703 } 1704 1705 /* 1706 * Find the self_id packet for a node, ignoring sequels. 1707 */ 1708 static union fw_self_id * 1709 fw_find_self_id(struct firewire_comm *fc, int node) 1710 { 1711 uint32_t i; 1712 union fw_self_id *s; 1713 1714 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1715 s = &fc->topology_map->self_id[i]; 1716 if (s->p0.sequel) 1717 continue; 1718 if (s->p0.phy_id == node) 1719 return s; 1720 } 1721 return 0; 1722 } 1723 1724 static void 1725 fw_explore(struct firewire_comm *fc) 1726 { 1727 int node, err, s, i, todo, todo2, trys; 1728 char nodes[63]; 1729 struct fw_device dfwdev; 1730 union fw_self_id *fwsid; 1731 1732 todo = 0; 1733 /* setup dummy fwdev */ 1734 dfwdev.fc = fc; 1735 dfwdev.speed = 0; 1736 dfwdev.maxrec = 8; /* 512 */ 1737 dfwdev.status = FWDEVINIT; 1738 1739 for (node = 0; node <= fc->max_node; node ++) { 1740 /* We don't probe myself and linkdown nodes */ 1741 if (node == fc->nodeid) { 1742 if (firewire_debug) 1743 device_printf(fc->bdev, "%s:" 1744 "found myself node(%d) fc->nodeid(%d) fc->max_node(%d)\n", 1745 __func__, node, fc->nodeid, fc->max_node); 1746 continue; 1747 } else if (firewire_debug) { 1748 device_printf(fc->bdev, "%s:" 1749 "node(%d) fc->max_node(%d) found\n", 1750 __func__, node, fc->max_node); 1751 } 1752 fwsid = fw_find_self_id(fc, node); 1753 if (!fwsid || !fwsid->p0.link_active) { 1754 if (firewire_debug) 1755 device_printf(fc->bdev, "%s: node%d: link down\n", 1756 __func__, node); 1757 continue; 1758 } 1759 nodes[todo++] = node; 1760 } 1761 1762 s = splfw(); 1763 for (trys = 0; todo > 0 && trys < 3; trys ++) { 1764 todo2 = 0; 1765 for (i = 0; i < todo; i ++) { 1766 dfwdev.dst = nodes[i]; 1767 err = fw_explore_node(&dfwdev); 1768 if (err) 1769 nodes[todo2++] = nodes[i]; 1770 if (firewire_debug) 1771 device_printf(fc->bdev, "%s: node %d, err = %d\n", 1772 __func__, node, err); 1773 } 1774 todo = todo2; 1775 } 1776 splx(s); 1777 } 1778 1779 1780 static void 1781 fw_bus_probe_thread(void *arg) 1782 { 1783 struct firewire_comm *fc; 1784 1785 fc = (struct firewire_comm *)arg; 1786 1787 mtx_lock(&fc->wait_lock); 1788 while (fc->status != FWBUSDETACH) { 1789 if (fc->status == FWBUSEXPLORE) { 1790 mtx_unlock(&fc->wait_lock); 1791 fw_explore(fc); 1792 fc->status = FWBUSEXPDONE; 1793 if (firewire_debug) 1794 printf("bus_explore done\n"); 1795 fw_attach_dev(fc); 1796 mtx_lock(&fc->wait_lock); 1797 } 1798 msleep((void *)fc, &fc->wait_lock, PWAIT|PCATCH, "-", 0); 1799 } 1800 mtx_unlock(&fc->wait_lock); 1801 kproc_exit(0); 1802 } 1803 1804 /* 1805 * To attach sub-devices layer onto IEEE1394 bus. 1806 */ 1807 static void 1808 fw_attach_dev(struct firewire_comm *fc) 1809 { 1810 struct fw_device *fwdev, *next; 1811 int i, err; 1812 device_t *devlistp; 1813 int devcnt; 1814 struct firewire_dev_comm *fdc; 1815 1816 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1817 next = STAILQ_NEXT(fwdev, link); 1818 if (fwdev->status == FWDEVINIT) { 1819 fwdev->status = FWDEVATTACHED; 1820 } else if (fwdev->status == FWDEVINVAL) { 1821 fwdev->rcnt ++; 1822 if (firewire_debug) 1823 device_printf(fc->bdev, "%s:" 1824 "fwdev->rcnt(%d), hold_count(%d)\n", 1825 __func__, fwdev->rcnt, hold_count); 1826 if (fwdev->rcnt > hold_count) { 1827 /* 1828 * Remove devices which have not been seen 1829 * for a while. 1830 */ 1831 device_printf(fc->bdev, "%s:" 1832 "Removing missing device ID:%08x%08x\n", 1833 __func__, fwdev->eui.hi, fwdev->eui.lo); 1834 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1835 link); 1836 free(fwdev, M_FW); 1837 } 1838 } 1839 } 1840 1841 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1842 if( err == 0 ) { 1843 for( i = 0 ; i < devcnt ; i++){ 1844 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1845 fdc = device_get_softc(devlistp[i]); 1846 if (fdc->post_explore != NULL) 1847 fdc->post_explore(fdc); 1848 } 1849 } 1850 free(devlistp, M_TEMP); 1851 } 1852 1853 return; 1854 } 1855 1856 /* 1857 * To allocate unique transaction label. 1858 */ 1859 static int 1860 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1861 { 1862 u_int dst, new_tlabel; 1863 struct fw_xfer *txfer; 1864 int s; 1865 1866 dst = xfer->send.hdr.mode.hdr.dst & 0x3f; 1867 s = splfw(); 1868 mtx_lock(&fc->tlabel_lock); 1869 new_tlabel = (fc->last_tlabel[dst] + 1) & 0x3f; 1870 STAILQ_FOREACH(txfer, &fc->tlabels[new_tlabel], tlabel) 1871 if ((txfer->send.hdr.mode.hdr.dst & 0x3f) == dst) 1872 break; 1873 if(txfer == NULL) { 1874 fc->last_tlabel[dst] = new_tlabel; 1875 STAILQ_INSERT_TAIL(&fc->tlabels[new_tlabel], xfer, tlabel); 1876 mtx_unlock(&fc->tlabel_lock); 1877 splx(s); 1878 xfer->tl = new_tlabel; 1879 xfer->send.hdr.mode.hdr.tlrt = new_tlabel << 2; 1880 if (firewire_debug > 1) 1881 printf("fw_get_tlabel: dst=%d tl=%d\n", dst, new_tlabel); 1882 return (new_tlabel); 1883 } 1884 mtx_unlock(&fc->tlabel_lock); 1885 splx(s); 1886 1887 if (firewire_debug > 1) 1888 printf("fw_get_tlabel: no free tlabel\n"); 1889 return (-1); 1890 } 1891 1892 static void 1893 fw_rcv_copy(struct fw_rcv_buf *rb) 1894 { 1895 struct fw_pkt *pkt; 1896 u_char *p; 1897 struct tcode_info *tinfo; 1898 u_int res, i, len, plen; 1899 1900 rb->xfer->recv.spd = rb->spd; 1901 1902 pkt = (struct fw_pkt *)rb->vec->iov_base; 1903 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1904 1905 /* Copy header */ 1906 p = (u_char *)&rb->xfer->recv.hdr; 1907 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1908 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1909 rb->vec->iov_len -= tinfo->hdr_len; 1910 1911 /* Copy payload */ 1912 p = (u_char *)rb->xfer->recv.payload; 1913 res = rb->xfer->recv.pay_len; 1914 1915 /* special handling for RRESQ */ 1916 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1917 p != NULL && res >= sizeof(uint32_t)) { 1918 *(uint32_t *)p = pkt->mode.rresq.data; 1919 rb->xfer->recv.pay_len = sizeof(uint32_t); 1920 return; 1921 } 1922 1923 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1924 return; 1925 1926 plen = pkt->mode.rresb.len; 1927 1928 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1929 len = MIN(rb->vec->iov_len, plen); 1930 if (res < len) { 1931 device_printf(rb->fc->bdev, "%s:" 1932 " rcv buffer(%d) is %d bytes short.\n", 1933 __func__, rb->xfer->recv.pay_len, len - res); 1934 len = res; 1935 } 1936 bcopy(rb->vec->iov_base, p, len); 1937 p += len; 1938 res -= len; 1939 plen -= len; 1940 if (res == 0 || plen == 0) 1941 break; 1942 } 1943 rb->xfer->recv.pay_len -= res; 1944 1945 } 1946 1947 /* 1948 * Generic packet receiving process. 1949 */ 1950 void 1951 fw_rcv(struct fw_rcv_buf *rb) 1952 { 1953 struct fw_pkt *fp, *resfp; 1954 struct fw_bind *bind; 1955 int tcode; 1956 int i, len, oldstate; 1957 #if 0 1958 { 1959 uint32_t *qld; 1960 int i; 1961 qld = (uint32_t *)buf; 1962 printf("spd %d len:%d\n", spd, len); 1963 for( i = 0 ; i <= len && i < 32; i+= 4){ 1964 printf("0x%08x ", ntohl(qld[i/4])); 1965 if((i % 16) == 15) printf("\n"); 1966 } 1967 if((i % 16) != 15) printf("\n"); 1968 } 1969 #endif 1970 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1971 tcode = fp->mode.common.tcode; 1972 switch (tcode) { 1973 case FWTCODE_WRES: 1974 case FWTCODE_RRESQ: 1975 case FWTCODE_RRESB: 1976 case FWTCODE_LRES: 1977 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1978 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tcode); 1979 if(rb->xfer == NULL) { 1980 device_printf(rb->fc->bdev, "%s: " 1981 "unknown response " 1982 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1983 __func__, 1984 tcode_str[tcode], tcode, 1985 fp->mode.hdr.src, 1986 fp->mode.hdr.tlrt >> 2, 1987 fp->mode.hdr.tlrt & 3, 1988 fp->mode.rresq.data); 1989 #if 0 1990 printf("try ad-hoc work around!!\n"); 1991 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1992 (fp->mode.hdr.tlrt >> 2)^3); 1993 if (rb->xfer == NULL) { 1994 printf("no use...\n"); 1995 return; 1996 } 1997 #else 1998 return; 1999 #endif 2000 } 2001 fw_rcv_copy(rb); 2002 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 2003 rb->xfer->resp = EIO; 2004 else 2005 rb->xfer->resp = 0; 2006 /* make sure the packet is drained in AT queue */ 2007 oldstate = rb->xfer->flag; 2008 rb->xfer->flag = FWXF_RCVD; 2009 switch (oldstate) { 2010 case FWXF_SENT: 2011 fw_xfer_done(rb->xfer); 2012 break; 2013 case FWXF_START: 2014 #if 0 2015 if (firewire_debug) 2016 printf("not sent yet tl=%x\n", rb->xfer->tl); 2017 #endif 2018 break; 2019 default: 2020 device_printf(rb->fc->bdev, "%s: " 2021 "unexpected flag 0x%02x\n", __func__, rb->xfer->flag); 2022 } 2023 return; 2024 case FWTCODE_WREQQ: 2025 case FWTCODE_WREQB: 2026 case FWTCODE_RREQQ: 2027 case FWTCODE_RREQB: 2028 case FWTCODE_LREQ: 2029 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 2030 fp->mode.rreqq.dest_lo); 2031 if(bind == NULL){ 2032 device_printf(rb->fc->bdev, "%s: " 2033 "Unknown service addr 0x%04x:0x%08x %s(%x)" 2034 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2035 " src=0x%x data=%lx\n", 2036 #else 2037 " src=0x%x data=%x\n", 2038 #endif 2039 __func__, 2040 fp->mode.wreqq.dest_hi, 2041 fp->mode.wreqq.dest_lo, 2042 tcode_str[tcode], tcode, 2043 fp->mode.hdr.src, 2044 ntohl(fp->mode.wreqq.data)); 2045 2046 if (rb->fc->status == FWBUSINIT) { 2047 device_printf(rb->fc->bdev, "%s: cannot respond(bus reset)!\n", 2048 __func__); 2049 return; 2050 } 2051 rb->xfer = fw_xfer_alloc(M_FWXFER); 2052 if(rb->xfer == NULL){ 2053 return; 2054 } 2055 rb->xfer->send.spd = rb->spd; 2056 rb->xfer->send.pay_len = 0; 2057 resfp = &rb->xfer->send.hdr; 2058 switch (tcode) { 2059 case FWTCODE_WREQQ: 2060 case FWTCODE_WREQB: 2061 resfp->mode.hdr.tcode = FWTCODE_WRES; 2062 break; 2063 case FWTCODE_RREQQ: 2064 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 2065 break; 2066 case FWTCODE_RREQB: 2067 resfp->mode.hdr.tcode = FWTCODE_RRESB; 2068 break; 2069 case FWTCODE_LREQ: 2070 resfp->mode.hdr.tcode = FWTCODE_LRES; 2071 break; 2072 } 2073 resfp->mode.hdr.dst = fp->mode.hdr.src; 2074 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 2075 resfp->mode.hdr.pri = fp->mode.hdr.pri; 2076 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 2077 resfp->mode.rresb.extcode = 0; 2078 resfp->mode.rresb.len = 0; 2079 /* 2080 rb->xfer->hand = fw_xferwake; 2081 */ 2082 rb->xfer->hand = fw_xfer_free; 2083 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 2084 fw_xfer_free(rb->xfer); 2085 return; 2086 } 2087 return; 2088 } 2089 len = 0; 2090 for (i = 0; i < rb->nvec; i ++) 2091 len += rb->vec[i].iov_len; 2092 rb->xfer = STAILQ_FIRST(&bind->xferlist); 2093 if (rb->xfer == NULL) { 2094 device_printf(rb->fc->bdev, "%s: " 2095 "Discard a packet for this bind.\n", 2096 __func__); 2097 return; 2098 } 2099 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 2100 fw_rcv_copy(rb); 2101 rb->xfer->hand(rb->xfer); 2102 return; 2103 #if 0 /* shouldn't happen ?? or for GASP */ 2104 case FWTCODE_STREAM: 2105 { 2106 struct fw_xferq *xferq; 2107 2108 xferq = rb->fc->ir[sub]; 2109 #if 0 2110 printf("stream rcv dma %d len %d off %d spd %d\n", 2111 sub, len, off, spd); 2112 #endif 2113 if(xferq->queued >= xferq->maxq) { 2114 printf("receive queue is full\n"); 2115 return; 2116 } 2117 /* XXX get xfer from xfer queue, we don't need copy for 2118 per packet mode */ 2119 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 2120 vec[0].iov_len); 2121 if (rb->xfer == NULL) 2122 return; 2123 fw_rcv_copy(rb) 2124 s = splfw(); 2125 xferq->queued++; 2126 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 2127 splx(s); 2128 sc = device_get_softc(rb->fc->bdev); 2129 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2130 if (&xferq->rsel.si_pid != 0) 2131 #else 2132 if (SEL_WAITING(&xferq->rsel)) 2133 #endif 2134 selwakeuppri(&xferq->rsel, FWPRI); 2135 if (xferq->flag & FWXFERQ_WAKEUP) { 2136 xferq->flag &= ~FWXFERQ_WAKEUP; 2137 wakeup((caddr_t)xferq); 2138 } 2139 if (xferq->flag & FWXFERQ_HANDLER) { 2140 xferq->hand(xferq); 2141 } 2142 return; 2143 break; 2144 } 2145 #endif 2146 default: 2147 device_printf(rb->fc->bdev,"%s: unknown tcode %d\n", 2148 __func__, tcode); 2149 break; 2150 } 2151 } 2152 2153 /* 2154 * Post process for Bus Manager election process. 2155 */ 2156 static void 2157 fw_try_bmr_callback(struct fw_xfer *xfer) 2158 { 2159 struct firewire_comm *fc; 2160 int bmr; 2161 2162 if (xfer == NULL) 2163 return; 2164 fc = xfer->fc; 2165 if (xfer->resp != 0) 2166 goto error; 2167 if (xfer->recv.payload == NULL) 2168 goto error; 2169 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2170 goto error; 2171 2172 bmr = ntohl(xfer->recv.payload[0]); 2173 if (bmr == 0x3f) 2174 bmr = fc->nodeid; 2175 2176 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2177 fw_xfer_free_buf(xfer); 2178 fw_bmr(fc); 2179 return; 2180 2181 error: 2182 device_printf(fc->bdev, "bus manager election failed\n"); 2183 fw_xfer_free_buf(xfer); 2184 } 2185 2186 2187 /* 2188 * To candidate Bus Manager election process. 2189 */ 2190 static void 2191 fw_try_bmr(void *arg) 2192 { 2193 struct fw_xfer *xfer; 2194 struct firewire_comm *fc = (struct firewire_comm *)arg; 2195 struct fw_pkt *fp; 2196 int err = 0; 2197 2198 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2199 if(xfer == NULL){ 2200 return; 2201 } 2202 xfer->send.spd = 0; 2203 fc->status = FWBUSMGRELECT; 2204 2205 fp = &xfer->send.hdr; 2206 fp->mode.lreq.dest_hi = 0xffff; 2207 fp->mode.lreq.tlrt = 0; 2208 fp->mode.lreq.tcode = FWTCODE_LREQ; 2209 fp->mode.lreq.pri = 0; 2210 fp->mode.lreq.src = 0; 2211 fp->mode.lreq.len = 8; 2212 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2213 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2214 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2215 xfer->send.payload[0] = htonl(0x3f); 2216 xfer->send.payload[1] = htonl(fc->nodeid); 2217 xfer->hand = fw_try_bmr_callback; 2218 2219 err = fw_asyreq(fc, -1, xfer); 2220 if(err){ 2221 fw_xfer_free_buf(xfer); 2222 return; 2223 } 2224 return; 2225 } 2226 2227 #ifdef FW_VMACCESS 2228 /* 2229 * Software implementation for physical memory block access. 2230 * XXX:Too slow, usef for debug purpose only. 2231 */ 2232 static void 2233 fw_vmaccess(struct fw_xfer *xfer){ 2234 struct fw_pkt *rfp, *sfp = NULL; 2235 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2236 2237 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2238 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2239 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2240 if(xfer->resp != 0){ 2241 fw_xfer_free( xfer); 2242 return; 2243 } 2244 if(xfer->recv.buf == NULL){ 2245 fw_xfer_free( xfer); 2246 return; 2247 } 2248 rfp = (struct fw_pkt *)xfer->recv.buf; 2249 switch(rfp->mode.hdr.tcode){ 2250 /* XXX need fix for 64bit arch */ 2251 case FWTCODE_WREQB: 2252 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2253 xfer->send.len = 12; 2254 sfp = (struct fw_pkt *)xfer->send.buf; 2255 bcopy(rfp->mode.wreqb.payload, 2256 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2257 sfp->mode.wres.tcode = FWTCODE_WRES; 2258 sfp->mode.wres.rtcode = 0; 2259 break; 2260 case FWTCODE_WREQQ: 2261 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2262 xfer->send.len = 12; 2263 sfp->mode.wres.tcode = FWTCODE_WRES; 2264 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2265 sfp->mode.wres.rtcode = 0; 2266 break; 2267 case FWTCODE_RREQB: 2268 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2269 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2270 sfp = (struct fw_pkt *)xfer->send.buf; 2271 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2272 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2273 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2274 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2275 sfp->mode.rresb.rtcode = 0; 2276 sfp->mode.rresb.extcode = 0; 2277 break; 2278 case FWTCODE_RREQQ: 2279 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2280 xfer->send.len = 16; 2281 sfp = (struct fw_pkt *)xfer->send.buf; 2282 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2283 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2284 sfp->mode.rresb.rtcode = 0; 2285 break; 2286 default: 2287 fw_xfer_free( xfer); 2288 return; 2289 } 2290 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2291 xfer->dst = ntohs(rfp->mode.hdr.src); 2292 xfer->hand = fw_xfer_free; 2293 2294 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2295 sfp->mode.hdr.pri = 0; 2296 2297 fw_asyreq(xfer->fc, -1, xfer); 2298 /**/ 2299 return; 2300 } 2301 #endif 2302 2303 /* 2304 * CRC16 check-sum for IEEE1394 register blocks. 2305 */ 2306 uint16_t 2307 fw_crc16(uint32_t *ptr, uint32_t len){ 2308 uint32_t i, sum, crc = 0; 2309 int shift; 2310 len = (len + 3) & ~3; 2311 for(i = 0 ; i < len ; i+= 4){ 2312 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2313 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2314 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2315 } 2316 crc &= 0xffff; 2317 } 2318 return((uint16_t) crc); 2319 } 2320 2321 /* 2322 * Find the root node, if it is not 2323 * Cycle Master Capable, then we should 2324 * override this and become the Cycle 2325 * Master 2326 */ 2327 static int 2328 fw_bmr(struct firewire_comm *fc) 2329 { 2330 struct fw_device fwdev; 2331 union fw_self_id *self_id; 2332 int cmstr; 2333 uint32_t quad; 2334 2335 /* Check to see if the current root node is cycle master capable */ 2336 self_id = fw_find_self_id(fc, fc->max_node); 2337 if (fc->max_node > 0) { 2338 /* XXX check cmc bit of businfo block rather than contender */ 2339 if (self_id->p0.link_active && self_id->p0.contender) 2340 cmstr = fc->max_node; 2341 else { 2342 device_printf(fc->bdev, 2343 "root node is not cycle master capable\n"); 2344 /* XXX shall we be the cycle master? */ 2345 cmstr = fc->nodeid; 2346 /* XXX need bus reset */ 2347 } 2348 } else 2349 cmstr = -1; 2350 2351 device_printf(fc->bdev, "bus manager %d %s\n", 2352 CSRARC(fc, BUS_MGR_ID), 2353 (CSRARC(fc, BUS_MGR_ID) != fc->nodeid) ? "(me)" : ""); 2354 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2355 /* We are not the bus manager */ 2356 return(0); 2357 } 2358 2359 /* Optimize gapcount */ 2360 if(fc->max_hop <= MAX_GAPHOP ) 2361 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2362 /* If we are the cycle master, nothing to do */ 2363 if (cmstr == fc->nodeid || cmstr == -1) 2364 return 0; 2365 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2366 bzero(&fwdev, sizeof(fwdev)); 2367 fwdev.fc = fc; 2368 fwdev.dst = cmstr; 2369 fwdev.speed = 0; 2370 fwdev.maxrec = 8; /* 512 */ 2371 fwdev.status = FWDEVINIT; 2372 /* Set cmstr bit on the cycle master */ 2373 quad = htonl(1 << 8); 2374 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2375 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2376 2377 return 0; 2378 } 2379 2380 int 2381 fw_open_isodma(struct firewire_comm *fc, int tx) 2382 { 2383 struct fw_xferq **xferqa; 2384 struct fw_xferq *xferq; 2385 int i; 2386 2387 if (tx) 2388 xferqa = &fc->it[0]; 2389 else 2390 xferqa = &fc->ir[0]; 2391 2392 FW_GLOCK(fc); 2393 for (i = 0; i < fc->nisodma; i ++) { 2394 xferq = xferqa[i]; 2395 if ((xferq->flag & FWXFERQ_OPEN) == 0) { 2396 xferq->flag |= FWXFERQ_OPEN; 2397 break; 2398 } 2399 } 2400 if (i == fc->nisodma) { 2401 printf("no free dma channel (tx=%d)\n", tx); 2402 i = -1; 2403 } 2404 FW_GUNLOCK(fc); 2405 return (i); 2406 } 2407 2408 static int 2409 fw_modevent(module_t mode, int type, void *data) 2410 { 2411 int err = 0; 2412 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2413 static eventhandler_tag fwdev_ehtag = NULL; 2414 #endif 2415 2416 switch (type) { 2417 case MOD_LOAD: 2418 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2419 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2420 fwdev_clone, 0, 1000); 2421 #endif 2422 break; 2423 case MOD_UNLOAD: 2424 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2425 if (fwdev_ehtag != NULL) 2426 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2427 #endif 2428 break; 2429 case MOD_SHUTDOWN: 2430 break; 2431 default: 2432 return (EOPNOTSUPP); 2433 } 2434 return (err); 2435 } 2436 2437 2438 #ifdef __DragonFly__ 2439 DECLARE_DUMMY_MODULE(firewire); 2440 #endif 2441 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2442 MODULE_VERSION(firewire, 1); 2443