firewire.c revision 194118
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: head/sys/dev/firewire/firewire.c 194118 2009-06-13 15:39:12Z jamie $ 35 * 36 */ 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 73struct 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 80int firewire_debug=0, try_bmr=1, hold_count=0; 81SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 82 "FireWire driver debug flag"); 83SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 84SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 85 "Try to be a bus manager"); 86SYSCTL_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 89MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 90MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 91 92#define FW_MAXASYRTY 4 93 94devclass_t firewire_devclass; 95 96static void firewire_identify (driver_t *, device_t); 97static int firewire_probe (device_t); 98static int firewire_attach (device_t); 99static int firewire_detach (device_t); 100static int firewire_resume (device_t); 101static void firewire_xfer_timeout(void *, int); 102#if 0 103static int firewire_shutdown (device_t); 104#endif 105static device_t firewire_add_child (device_t, int, const char *, int); 106static void fw_try_bmr (void *); 107static void fw_try_bmr_callback (struct fw_xfer *); 108static void fw_asystart (struct fw_xfer *); 109static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *); 110static void fw_bus_probe (struct firewire_comm *); 111static void fw_attach_dev (struct firewire_comm *); 112static void fw_bus_probe_thread(void *); 113#ifdef FW_VMACCESS 114static void fw_vmaccess (struct fw_xfer *); 115#endif 116static int fw_bmr (struct firewire_comm *); 117static void fw_dump_hdr(struct fw_pkt *, char *); 118 119static 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 DEVMETHOD(bus_print_child, bus_generic_print_child), 132 133 { 0, 0 } 134}; 135char *linkspeed[] = { 136 "S100", "S200", "S400", "S800", 137 "S1600", "S3200", "undef", "undef" 138}; 139 140static char *tcode_str[] = { 141 "WREQQ", "WREQB", "WRES", "undef", 142 "RREQQ", "RREQB", "RRESQ", "RRESB", 143 "CYCS", "LREQ", "STREAM", "LRES", 144 "undef", "undef", "PHY", "undef" 145}; 146 147/* IEEE-1394a Table C-2 Gap count as a function of hops*/ 148#define MAX_GAPHOP 15 149u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 150 21, 24, 26, 29, 32, 35, 37, 40}; 151 152static driver_t firewire_driver = { 153 "firewire", 154 firewire_methods, 155 sizeof(struct firewire_softc), 156}; 157 158/* 159 * Lookup fwdev by node id. 160 */ 161struct fw_device * 162fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 163{ 164 struct fw_device *fwdev; 165 int s; 166 167 s = splfw(); 168 STAILQ_FOREACH(fwdev, &fc->devices, link) 169 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 170 break; 171 splx(s); 172 173 return fwdev; 174} 175 176/* 177 * Lookup fwdev by EUI64. 178 */ 179struct fw_device * 180fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 181{ 182 struct fw_device *fwdev; 183 int s; 184 185 s = splfw(); 186 FW_GLOCK(fc); 187 STAILQ_FOREACH(fwdev, &fc->devices, link) 188 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 189 break; 190 FW_GUNLOCK(fc); 191 splx(s); 192 193 if(fwdev == NULL) return NULL; 194 if(fwdev->status == FWDEVINVAL) return NULL; 195 return fwdev; 196} 197 198/* 199 * Async. request procedure for userland application. 200 */ 201int 202fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 203{ 204 int err = 0; 205 struct fw_xferq *xferq; 206 int len; 207 struct fw_pkt *fp; 208 int tcode; 209 struct tcode_info *info; 210 211 if(xfer == NULL) return EINVAL; 212 if(xfer->hand == NULL){ 213 printf("hand == NULL\n"); 214 return EINVAL; 215 } 216 fp = &xfer->send.hdr; 217 218 tcode = fp->mode.common.tcode & 0xf; 219 info = &fc->tcode[tcode]; 220 if (info->flag == 0) { 221 printf("invalid tcode=%x\n", tcode); 222 return EINVAL; 223 } 224 225 /* XXX allow bus explore packets only after bus rest */ 226 if ((fc->status < FWBUSEXPLORE) && 227 ((tcode != FWTCODE_RREQQ) || (fp->mode.rreqq.dest_hi != 0xffff) || 228 (fp->mode.rreqq.dest_lo < 0xf0000000) || 229 (fp->mode.rreqq.dest_lo >= 0xf0001000))) { 230 xfer->resp = EAGAIN; 231 xfer->flag = FWXF_BUSY; 232 return (EAGAIN); 233 } 234 235 if (info->flag & FWTI_REQ) 236 xferq = fc->atq; 237 else 238 xferq = fc->ats; 239 len = info->hdr_len; 240 if (xfer->send.pay_len > MAXREC(fc->maxrec)) { 241 printf("send.pay_len > maxrec\n"); 242 return EINVAL; 243 } 244 if (info->flag & FWTI_BLOCK_STR) 245 len = fp->mode.stream.len; 246 else if (info->flag & FWTI_BLOCK_ASY) 247 len = fp->mode.rresb.len; 248 else 249 len = 0; 250 if (len != xfer->send.pay_len){ 251 printf("len(%d) != send.pay_len(%d) %s(%x)\n", 252 len, xfer->send.pay_len, tcode_str[tcode], tcode); 253 return EINVAL; 254 } 255 256 if(xferq->start == NULL){ 257 printf("xferq->start == NULL\n"); 258 return EINVAL; 259 } 260 if(!(xferq->queued < xferq->maxq)){ 261 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 262 xferq->queued); 263 return EAGAIN; 264 } 265 266 xfer->tl = -1; 267 if (info->flag & FWTI_TLABEL) { 268 if (fw_get_tlabel(fc, xfer) < 0) 269 return EAGAIN; 270 } 271 272 xfer->resp = 0; 273 xfer->fc = fc; 274 xfer->q = xferq; 275 276 fw_asystart(xfer); 277 return err; 278} 279/* 280 * Wakeup blocked process. 281 */ 282void 283fw_xferwake(struct fw_xfer *xfer) 284{ 285 struct mtx *lock = &xfer->fc->wait_lock; 286 287 mtx_lock(lock); 288 xfer->flag |= FWXF_WAKE; 289 mtx_unlock(lock); 290 291 wakeup(xfer); 292 return; 293} 294 295int 296fw_xferwait(struct fw_xfer *xfer) 297{ 298 struct mtx *lock = &xfer->fc->wait_lock; 299 int err = 0; 300 301 mtx_lock(lock); 302 if ((xfer->flag & FWXF_WAKE) == 0) 303 err = msleep((void *)xfer, lock, PWAIT|PCATCH, "fw_xferwait", 0); 304 mtx_unlock(lock); 305 306 return (err); 307} 308 309/* 310 * Async. request with given xfer structure. 311 */ 312static void 313fw_asystart(struct fw_xfer *xfer) 314{ 315 struct firewire_comm *fc = xfer->fc; 316 int s; 317 s = splfw(); 318 /* Protect from interrupt/timeout */ 319 FW_GLOCK(fc); 320 xfer->flag = FWXF_INQ; 321 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 322#if 0 323 xfer->q->queued ++; 324#endif 325 FW_GUNLOCK(fc); 326 splx(s); 327 /* XXX just queue for mbuf */ 328 if (xfer->mbuf == NULL) 329 xfer->q->start(fc); 330 return; 331} 332 333static void 334firewire_identify(driver_t *driver, device_t parent) 335{ 336 BUS_ADD_CHILD(parent, 0, "firewire", -1); 337} 338 339static int 340firewire_probe(device_t dev) 341{ 342 device_set_desc(dev, "IEEE1394(FireWire) bus"); 343 return (0); 344} 345 346static void 347firewire_xfer_timeout(void *arg, int pending) 348{ 349 struct firewire_comm *fc = (struct firewire_comm *)arg; 350 struct fw_xfer *xfer, *txfer; 351 struct timeval tv; 352 struct timeval split_timeout; 353 STAILQ_HEAD(, fw_xfer) xfer_timeout; 354 int i, s; 355 356 split_timeout.tv_sec = 0; 357 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 358 359 microtime(&tv); 360 timevalsub(&tv, &split_timeout); 361 STAILQ_INIT(&xfer_timeout); 362 363 s = splfw(); 364 mtx_lock(&fc->tlabel_lock); 365 for (i = 0; i < 0x40; i ++) { 366 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 367 if ((xfer->flag & FWXF_SENT) == 0) 368 /* not sent yet */ 369 break; 370 if (timevalcmp(&xfer->tv, &tv, >)) 371 /* the rests are newer than this */ 372 break; 373 device_printf(fc->bdev, 374 "split transaction timeout: " 375 "tl=0x%x flag=0x%02x\n", i, xfer->flag); 376 fw_dump_hdr(&xfer->send.hdr, "send"); 377 xfer->resp = ETIMEDOUT; 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 391static void 392firewire_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 */ 416static int 417firewire_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 */ 490static device_t 491firewire_add_child(device_t dev, 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 506static int 507firewire_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 */ 522static int 523firewire_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 567static int 568firewire_shutdown( device_t dev ) 569{ 570 return 0; 571} 572#endif 573 574 575static void 576fw_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 591void 592fw_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->resp = EAGAIN; 613 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel); 614 STAILQ_INSERT_TAIL(&xfer_drain, xfer, tlabel); 615 } 616 mtx_unlock(&fc->tlabel_lock); 617 618 STAILQ_FOREACH_SAFE(xfer, &xfer_drain, tlabel, txfer) 619 xfer->hand(xfer); 620} 621 622static void 623fw_reset_csr(struct firewire_comm *fc) 624{ 625 int i; 626 627 CSRARC(fc, STATE_CLEAR) 628 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 629 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 630 CSRARC(fc, NODE_IDS) = 0x3f; 631 632 CSRARC(fc, TOPO_MAP + 8) = 0; 633 fc->irm = -1; 634 635 fc->max_node = -1; 636 637 for(i = 2; i < 0x100/4 - 2 ; i++){ 638 CSRARC(fc, SPED_MAP + i * 4) = 0; 639 } 640 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 641 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 642 CSRARC(fc, RESET_START) = 0; 643 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 644 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 645 CSRARC(fc, CYCLE_TIME) = 0x0; 646 CSRARC(fc, BUS_TIME) = 0x0; 647 CSRARC(fc, BUS_MGR_ID) = 0x3f; 648 CSRARC(fc, BANDWIDTH_AV) = 4915; 649 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 650 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 651 CSRARC(fc, IP_CHANNELS) = (1 << 31); 652 653 CSRARC(fc, CONF_ROM) = 0x04 << 24; 654 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 655 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 656 1 << 28 | 0xff << 16 | 0x09 << 8; 657 CSRARC(fc, CONF_ROM + 0xc) = 0; 658 659/* DV depend CSRs see blue book */ 660 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 661 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 662 663 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 664 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 665} 666 667static void 668fw_init_crom(struct firewire_comm *fc) 669{ 670 struct crom_src *src; 671 672 src = &fc->crom_src_buf->src; 673 bzero(src, sizeof(struct crom_src)); 674 675 /* BUS info sample */ 676 src->hdr.info_len = 4; 677 678 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 679 680 src->businfo.irmc = 1; 681 src->businfo.cmc = 1; 682 src->businfo.isc = 1; 683 src->businfo.bmc = 1; 684 src->businfo.pmc = 0; 685 src->businfo.cyc_clk_acc = 100; 686 src->businfo.max_rec = fc->maxrec; 687 src->businfo.max_rom = MAXROM_4; 688#define FW_GENERATION_CHANGEABLE 2 689 src->businfo.generation = FW_GENERATION_CHANGEABLE; 690 src->businfo.link_spd = fc->speed; 691 692 src->businfo.eui64.hi = fc->eui.hi; 693 src->businfo.eui64.lo = fc->eui.lo; 694 695 STAILQ_INIT(&src->chunk_list); 696 697 fc->crom_src = src; 698 fc->crom_root = &fc->crom_src_buf->root; 699} 700 701static void 702fw_reset_crom(struct firewire_comm *fc) 703{ 704 struct crom_src_buf *buf; 705 struct crom_src *src; 706 struct crom_chunk *root; 707 708 buf = fc->crom_src_buf; 709 src = fc->crom_src; 710 root = fc->crom_root; 711 712 STAILQ_INIT(&src->chunk_list); 713 714 bzero(root, sizeof(struct crom_chunk)); 715 crom_add_chunk(src, NULL, root, 0); 716 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 717 /* private company_id */ 718 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 719#ifdef __DragonFly__ 720 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 721 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version); 722#else 723 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 724 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 725#endif 726 mtx_lock(&prison0.pr_mtx); 727 crom_add_simple_text(src, root, &buf->hw, prison0.pr_hostname); 728 mtx_unlock(&prison0.pr_mtx); 729} 730 731/* 732 * Called after bus reset. 733 */ 734void 735fw_busreset(struct firewire_comm *fc, uint32_t new_status) 736{ 737 struct firewire_dev_comm *fdc; 738 struct crom_src *src; 739 device_t *devlistp; 740 uint32_t *newrom; 741 int i, devcnt; 742 743 FW_GLOCK_ASSERT(fc); 744 if (fc->status == FWBUSMGRELECT) 745 callout_stop(&fc->bmr_callout); 746 747 fc->status = new_status; 748 fw_reset_csr(fc); 749 750 if (fc->status == FWBUSNOTREADY) 751 fw_init_crom(fc); 752 753 fw_reset_crom(fc); 754 755 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 756 for( i = 0 ; i < devcnt ; i++) 757 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 758 fdc = device_get_softc(devlistp[i]); 759 if (fdc->post_busreset != NULL) 760 fdc->post_busreset(fdc); 761 } 762 free(devlistp, M_TEMP); 763 } 764 765 src = &fc->crom_src_buf->src; 766 /* 767 * If the old config rom needs to be overwritten, 768 * bump the businfo.generation indicator to 769 * indicate that we need to be reprobed 770 * See 1394a-2000 8.3.2.5.4 for more details. 771 * generation starts at 2 and rolls over at 0xF 772 * back to 2. 773 * 774 * A generation of 0 indicates a device 775 * that is not 1394a-2000 compliant. 776 * A generation of 1 indicates a device that 777 * does not change it's Bus Info Block or 778 * Configuration ROM. 779 */ 780#define FW_MAX_GENERATION 0xF 781 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 782 src = &fc->crom_src_buf->src; 783 crom_load(src, newrom, CROMSIZE); 784 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 785 if ( src->businfo.generation++ > FW_MAX_GENERATION ) 786 src->businfo.generation = FW_GENERATION_CHANGEABLE; 787 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 788 } 789 free(newrom, M_FW); 790 791} 792 793/* Call once after reboot */ 794void fw_init(struct firewire_comm *fc) 795{ 796 int i; 797#ifdef FW_VMACCESS 798 struct fw_xfer *xfer; 799 struct fw_bind *fwb; 800#endif 801 802 fc->arq->queued = 0; 803 fc->ars->queued = 0; 804 fc->atq->queued = 0; 805 fc->ats->queued = 0; 806 807 fc->arq->buf = NULL; 808 fc->ars->buf = NULL; 809 fc->atq->buf = NULL; 810 fc->ats->buf = NULL; 811 812 fc->arq->flag = 0; 813 fc->ars->flag = 0; 814 fc->atq->flag = 0; 815 fc->ats->flag = 0; 816 817 STAILQ_INIT(&fc->atq->q); 818 STAILQ_INIT(&fc->ats->q); 819 820 for( i = 0 ; i < fc->nisodma ; i ++ ){ 821 fc->it[i]->queued = 0; 822 fc->ir[i]->queued = 0; 823 824 fc->it[i]->start = NULL; 825 fc->ir[i]->start = NULL; 826 827 fc->it[i]->buf = NULL; 828 fc->ir[i]->buf = NULL; 829 830 fc->it[i]->flag = FWXFERQ_STREAM; 831 fc->ir[i]->flag = FWXFERQ_STREAM; 832 833 STAILQ_INIT(&fc->it[i]->q); 834 STAILQ_INIT(&fc->ir[i]->q); 835 } 836 837 fc->arq->maxq = FWMAXQUEUE; 838 fc->ars->maxq = FWMAXQUEUE; 839 fc->atq->maxq = FWMAXQUEUE; 840 fc->ats->maxq = FWMAXQUEUE; 841 842 for( i = 0 ; i < fc->nisodma ; i++){ 843 fc->ir[i]->maxq = FWMAXQUEUE; 844 fc->it[i]->maxq = FWMAXQUEUE; 845 } 846 847 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 848 CSRARC(fc, TOPO_MAP + 4) = 1; 849 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 850 CSRARC(fc, SPED_MAP + 4) = 1; 851 852 STAILQ_INIT(&fc->devices); 853 854/* Initialize Async handlers */ 855 STAILQ_INIT(&fc->binds); 856 for( i = 0 ; i < 0x40 ; i++){ 857 STAILQ_INIT(&fc->tlabels[i]); 858 } 859 860/* DV depend CSRs see blue book */ 861#if 0 862 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 863 CSRARC(fc, oPCR) = 0x8000007a; 864 for(i = 4 ; i < 0x7c/4 ; i+=4){ 865 CSRARC(fc, i + oPCR) = 0x8000007a; 866 } 867 868 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 869 CSRARC(fc, iPCR) = 0x803f0000; 870 for(i = 4 ; i < 0x7c/4 ; i+=4){ 871 CSRARC(fc, i + iPCR) = 0x0; 872 } 873#endif 874 875 fc->crom_src_buf = NULL; 876 877#ifdef FW_VMACCESS 878 xfer = fw_xfer_alloc(); 879 if(xfer == NULL) return; 880 881 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 882 if(fwb == NULL){ 883 fw_xfer_free(xfer); 884 return; 885 } 886 xfer->hand = fw_vmaccess; 887 xfer->fc = fc; 888 xfer->sc = NULL; 889 890 fwb->start_hi = 0x2; 891 fwb->start_lo = 0; 892 fwb->addrlen = 0xffffffff; 893 fwb->xfer = xfer; 894 fw_bindadd(fc, fwb); 895#endif 896} 897 898#define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 899 ((fwb)->end < (addr))?1:0) 900 901/* 902 * To lookup bound process from IEEE1394 address. 903 */ 904struct fw_bind * 905fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 906{ 907 u_int64_t addr; 908 struct fw_bind *tfw, *r = NULL; 909 910 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 911 FW_GLOCK(fc); 912 STAILQ_FOREACH(tfw, &fc->binds, fclist) 913 if (BIND_CMP(addr, tfw) == 0) { 914 r = tfw; 915 break; 916 } 917 FW_GUNLOCK(fc); 918 return(r); 919} 920 921/* 922 * To bind IEEE1394 address block to process. 923 */ 924int 925fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 926{ 927 struct fw_bind *tfw, *prev = NULL; 928 int r = 0; 929 930 if (fwb->start > fwb->end) { 931 printf("%s: invalid range\n", __func__); 932 return EINVAL; 933 } 934 935 FW_GLOCK(fc); 936 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 937 if (fwb->end < tfw->start) 938 break; 939 prev = tfw; 940 } 941 if (prev == NULL) 942 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 943 else if (prev->end < fwb->start) 944 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 945 else { 946 printf("%s: bind failed\n", __func__); 947 r = EBUSY; 948 } 949 FW_GUNLOCK(fc); 950 return (r); 951} 952 953/* 954 * To free IEEE1394 address block. 955 */ 956int 957fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 958{ 959#if 0 960 struct fw_xfer *xfer, *next; 961#endif 962 struct fw_bind *tfw; 963 int s; 964 965 s = splfw(); 966 FW_GLOCK(fc); 967 STAILQ_FOREACH(tfw, &fc->binds, fclist) 968 if (tfw == fwb) { 969 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 970 goto found; 971 } 972 973 printf("%s: no such binding\n", __func__); 974 FW_GUNLOCK(fc); 975 splx(s); 976 return (1); 977found: 978#if 0 979 /* shall we do this? */ 980 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 981 next = STAILQ_NEXT(xfer, link); 982 fw_xfer_free(xfer); 983 } 984 STAILQ_INIT(&fwb->xferlist); 985#endif 986 FW_GUNLOCK(fc); 987 988 splx(s); 989 return 0; 990} 991 992int 993fw_xferlist_add(struct fw_xferlist *q, struct malloc_type *type, 994 int slen, int rlen, int n, 995 struct firewire_comm *fc, void *sc, void (*hand)(struct fw_xfer *)) 996{ 997 int i, s; 998 struct fw_xfer *xfer; 999 1000 for (i = 0; i < n; i++) { 1001 xfer = fw_xfer_alloc_buf(type, slen, rlen); 1002 if (xfer == NULL) 1003 return (n); 1004 xfer->fc = fc; 1005 xfer->sc = sc; 1006 xfer->hand = hand; 1007 s = splfw(); 1008 STAILQ_INSERT_TAIL(q, xfer, link); 1009 splx(s); 1010 } 1011 return (n); 1012} 1013 1014void 1015fw_xferlist_remove(struct fw_xferlist *q) 1016{ 1017 struct fw_xfer *xfer, *next; 1018 1019 for (xfer = STAILQ_FIRST(q); xfer != NULL; xfer = next) { 1020 next = STAILQ_NEXT(xfer, link); 1021 fw_xfer_free_buf(xfer); 1022 } 1023 STAILQ_INIT(q); 1024} 1025/* 1026 * dump packet header 1027 */ 1028static void 1029fw_dump_hdr(struct fw_pkt *fp, char *prefix) 1030{ 1031 printf("%s: dst=0x%02x tl=0x%02x rt=%d tcode=0x%x pri=0x%x " 1032 "src=0x%03x\n", prefix, 1033 fp->mode.hdr.dst & 0x3f, 1034 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tlrt & 3, 1035 fp->mode.hdr.tcode, fp->mode.hdr.pri, 1036 fp->mode.hdr.src); 1037} 1038 1039/* 1040 * To free transaction label. 1041 */ 1042static void 1043fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 1044{ 1045 struct fw_xfer *txfer; 1046 int s; 1047 1048 if (xfer->tl < 0) 1049 return; 1050 1051 s = splfw(); 1052 mtx_lock(&fc->tlabel_lock); 1053#if 1 /* make sure the label is allocated */ 1054 STAILQ_FOREACH(txfer, &fc->tlabels[xfer->tl], tlabel) 1055 if(txfer == xfer) 1056 break; 1057 if (txfer == NULL) { 1058 printf("%s: the xfer is not in the queue " 1059 "(tlabel=%d, flag=0x%x)\n", 1060 __FUNCTION__, xfer->tl, xfer->flag); 1061 fw_dump_hdr(&xfer->send.hdr, "send"); 1062 fw_dump_hdr(&xfer->recv.hdr, "recv"); 1063 kdb_backtrace(); 1064 mtx_unlock(&fc->tlabel_lock); 1065 splx(s); 1066 return; 1067 } 1068#endif 1069 1070 STAILQ_REMOVE(&fc->tlabels[xfer->tl], xfer, fw_xfer, tlabel); 1071 mtx_unlock(&fc->tlabel_lock); 1072 splx(s); 1073 return; 1074} 1075 1076/* 1077 * To obtain XFER structure by transaction label. 1078 */ 1079static struct fw_xfer * 1080fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel, int tcode) 1081{ 1082 struct fw_xfer *xfer; 1083 int s = splfw(); 1084 int req; 1085 1086 mtx_lock(&fc->tlabel_lock); 1087 STAILQ_FOREACH(xfer, &fc->tlabels[tlabel], tlabel) 1088 if(xfer->send.hdr.mode.hdr.dst == node) { 1089 mtx_unlock(&fc->tlabel_lock); 1090 splx(s); 1091 KASSERT(xfer->tl == tlabel, 1092 ("xfer->tl 0x%x != 0x%x", xfer->tl, tlabel)); 1093 /* extra sanity check */ 1094 req = xfer->send.hdr.mode.hdr.tcode; 1095 if (xfer->fc->tcode[req].valid_res != tcode) { 1096 printf("%s: invalid response tcode " 1097 "(0x%x for 0x%x)\n", __FUNCTION__, 1098 tcode, req); 1099 return(NULL); 1100 } 1101 1102 if (firewire_debug > 2) 1103 printf("fw_tl2xfer: found tl=%d\n", tlabel); 1104 return(xfer); 1105 } 1106 mtx_unlock(&fc->tlabel_lock); 1107 if (firewire_debug > 1) 1108 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 1109 splx(s); 1110 return(NULL); 1111} 1112 1113/* 1114 * To allocate IEEE1394 XFER structure. 1115 */ 1116struct fw_xfer * 1117fw_xfer_alloc(struct malloc_type *type) 1118{ 1119 struct fw_xfer *xfer; 1120 1121 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 1122 if (xfer == NULL) 1123 return xfer; 1124 1125 xfer->malloc = type; 1126 1127 return xfer; 1128} 1129 1130struct fw_xfer * 1131fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 1132{ 1133 struct fw_xfer *xfer; 1134 1135 xfer = fw_xfer_alloc(type); 1136 if (xfer == NULL) 1137 return(NULL); 1138 xfer->send.pay_len = send_len; 1139 xfer->recv.pay_len = recv_len; 1140 if (send_len > 0) { 1141 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 1142 if (xfer->send.payload == NULL) { 1143 fw_xfer_free(xfer); 1144 return(NULL); 1145 } 1146 } 1147 if (recv_len > 0) { 1148 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 1149 if (xfer->recv.payload == NULL) { 1150 if (xfer->send.payload != NULL) 1151 free(xfer->send.payload, type); 1152 fw_xfer_free(xfer); 1153 return(NULL); 1154 } 1155 } 1156 return(xfer); 1157} 1158 1159/* 1160 * IEEE1394 XFER post process. 1161 */ 1162void 1163fw_xfer_done(struct fw_xfer *xfer) 1164{ 1165 if (xfer->hand == NULL) { 1166 printf("hand == NULL\n"); 1167 return; 1168 } 1169 1170 if (xfer->fc == NULL) 1171 panic("fw_xfer_done: why xfer->fc is NULL?"); 1172 1173 fw_tl_free(xfer->fc, xfer); 1174 xfer->hand(xfer); 1175} 1176 1177void 1178fw_xfer_unload(struct fw_xfer* xfer) 1179{ 1180 int s; 1181 1182 if(xfer == NULL ) return; 1183 if(xfer->flag & FWXF_INQ){ 1184 printf("fw_xfer_free FWXF_INQ\n"); 1185 s = splfw(); 1186 FW_GLOCK(xfer->fc); 1187 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1188#if 0 1189 xfer->q->queued --; 1190#endif 1191 FW_GUNLOCK(xfer->fc); 1192 splx(s); 1193 } 1194 if (xfer->fc != NULL) { 1195#if 1 1196 if(xfer->flag & FWXF_START) 1197 /* 1198 * This could happen if: 1199 * 1. We call fwohci_arcv() before fwohci_txd(). 1200 * 2. firewire_watch() is called. 1201 */ 1202 printf("fw_xfer_free FWXF_START\n"); 1203#endif 1204 } 1205 xfer->flag = FWXF_INIT; 1206 xfer->resp = 0; 1207} 1208/* 1209 * To free IEEE1394 XFER structure. 1210 */ 1211void 1212fw_xfer_free_buf( struct fw_xfer* xfer) 1213{ 1214 if (xfer == NULL) { 1215 printf("%s: xfer == NULL\n", __func__); 1216 return; 1217 } 1218 fw_xfer_unload(xfer); 1219 if(xfer->send.payload != NULL){ 1220 free(xfer->send.payload, xfer->malloc); 1221 } 1222 if(xfer->recv.payload != NULL){ 1223 free(xfer->recv.payload, xfer->malloc); 1224 } 1225 free(xfer, xfer->malloc); 1226} 1227 1228void 1229fw_xfer_free( struct fw_xfer* xfer) 1230{ 1231 if (xfer == NULL) { 1232 printf("%s: xfer == NULL\n", __func__); 1233 return; 1234 } 1235 fw_xfer_unload(xfer); 1236 free(xfer, xfer->malloc); 1237} 1238 1239void 1240fw_asy_callback_free(struct fw_xfer *xfer) 1241{ 1242#if 0 1243 printf("asyreq done flag=0x%02x resp=%d\n", 1244 xfer->flag, xfer->resp); 1245#endif 1246 fw_xfer_free(xfer); 1247} 1248 1249/* 1250 * To configure PHY. 1251 */ 1252static void 1253fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1254{ 1255 struct fw_xfer *xfer; 1256 struct fw_pkt *fp; 1257 1258 fc->status = FWBUSPHYCONF; 1259 1260 xfer = fw_xfer_alloc(M_FWXFER); 1261 if (xfer == NULL) 1262 return; 1263 xfer->fc = fc; 1264 xfer->hand = fw_asy_callback_free; 1265 1266 fp = &xfer->send.hdr; 1267 fp->mode.ld[1] = 0; 1268 if (root_node >= 0) 1269 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1270 if (gap_count >= 0) 1271 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1272 fp->mode.ld[2] = ~fp->mode.ld[1]; 1273/* XXX Dangerous, how to pass PHY packet to device driver */ 1274 fp->mode.common.tcode |= FWTCODE_PHY; 1275 1276 if (firewire_debug) 1277 device_printf(fc->bdev, "%s: root_node=%d gap_count=%d\n", 1278 __func__, root_node, gap_count); 1279 fw_asyreq(fc, -1, xfer); 1280} 1281 1282/* 1283 * Dump self ID. 1284 */ 1285static void 1286fw_print_sid(uint32_t sid) 1287{ 1288 union fw_self_id *s; 1289 s = (union fw_self_id *) &sid; 1290 if ( s->p0.sequel ) { 1291 if ( s->p1.sequence_num == FW_SELF_ID_PAGE0 ) { 1292 printf("node:%d p3:%d p4:%d p5:%d p6:%d p7:%d" 1293 "p8:%d p9:%d p10:%d\n", 1294 s->p1.phy_id, s->p1.port3, s->p1.port4, 1295 s->p1.port5, s->p1.port6, s->p1.port7, 1296 s->p1.port8, s->p1.port9, s->p1.port10); 1297 } else if (s->p2.sequence_num == FW_SELF_ID_PAGE1 ){ 1298 printf("node:%d p11:%d p12:%d p13:%d p14:%d p15:%d\n", 1299 s->p2.phy_id, s->p2.port11, s->p2.port12, 1300 s->p2.port13, s->p2.port14, s->p2.port15); 1301 } else { 1302 printf("node:%d Unknown Self ID Page number %d\n", 1303 s->p1.phy_id, s->p1.sequence_num); 1304 } 1305 } else { 1306 printf("node:%d link:%d gap:%d spd:%d con:%d pwr:%d" 1307 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1308 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1309 s->p0.phy_speed, s->p0.contender, 1310 s->p0.power_class, s->p0.port0, s->p0.port1, 1311 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1312 } 1313} 1314 1315/* 1316 * To receive self ID. 1317 */ 1318void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1319{ 1320 uint32_t *p; 1321 union fw_self_id *self_id; 1322 u_int i, j, node, c_port = 0, i_branch = 0; 1323 1324 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1325 fc->max_node = fc->nodeid & 0x3f; 1326 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1327 fc->status = FWBUSCYMELECT; 1328 fc->topology_map->crc_len = 2; 1329 fc->topology_map->generation ++; 1330 fc->topology_map->self_id_count = 0; 1331 fc->topology_map->node_count = 0; 1332 fc->speed_map->generation ++; 1333 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1334 self_id = &fc->topology_map->self_id[0]; 1335 for(i = 0; i < fc->sid_cnt; i ++){ 1336 if (sid[1] != ~sid[0]) { 1337 device_printf(fc->bdev, "%s: ERROR invalid self-id packet\n", 1338 __func__); 1339 sid += 2; 1340 continue; 1341 } 1342 *self_id = *((union fw_self_id *)sid); 1343 fc->topology_map->crc_len++; 1344 if(self_id->p0.sequel == 0){ 1345 fc->topology_map->node_count ++; 1346 c_port = 0; 1347 if (firewire_debug) 1348 fw_print_sid(sid[0]); 1349 node = self_id->p0.phy_id; 1350 if(fc->max_node < node){ 1351 fc->max_node = self_id->p0.phy_id; 1352 } 1353 /* XXX I'm not sure this is the right speed_map */ 1354 fc->speed_map->speed[node][node] 1355 = self_id->p0.phy_speed; 1356 for (j = 0; j < node; j ++) { 1357 fc->speed_map->speed[j][node] 1358 = fc->speed_map->speed[node][j] 1359 = min(fc->speed_map->speed[j][j], 1360 self_id->p0.phy_speed); 1361 } 1362 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1363 (self_id->p0.link_active && self_id->p0.contender)) { 1364 fc->irm = self_id->p0.phy_id; 1365 } 1366 if(self_id->p0.port0 >= 0x2){ 1367 c_port++; 1368 } 1369 if(self_id->p0.port1 >= 0x2){ 1370 c_port++; 1371 } 1372 if(self_id->p0.port2 >= 0x2){ 1373 c_port++; 1374 } 1375 } 1376 if(c_port > 2){ 1377 i_branch += (c_port - 2); 1378 } 1379 sid += 2; 1380 self_id++; 1381 fc->topology_map->self_id_count ++; 1382 } 1383 /* CRC */ 1384 fc->topology_map->crc = fw_crc16( 1385 (uint32_t *)&fc->topology_map->generation, 1386 fc->topology_map->crc_len * 4); 1387 fc->speed_map->crc = fw_crc16( 1388 (uint32_t *)&fc->speed_map->generation, 1389 fc->speed_map->crc_len * 4); 1390 /* byteswap and copy to CSR */ 1391 p = (uint32_t *)fc->topology_map; 1392 for (i = 0; i <= fc->topology_map->crc_len; i++) 1393 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1394 p = (uint32_t *)fc->speed_map; 1395 CSRARC(fc, SPED_MAP) = htonl(*p++); 1396 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1397 /* don't byte-swap uint8_t array */ 1398 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1399 1400 fc->max_hop = fc->max_node - i_branch; 1401 device_printf(fc->bdev, "%d nodes, maxhop <= %d %s irm(%d) %s\n", 1402 fc->max_node + 1, fc->max_hop, 1403 (fc->irm == -1) ? "Not IRM capable" : "cable IRM", 1404 fc->irm, 1405 (fc->irm == fc->nodeid) ? " (me) " : ""); 1406 1407 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1408 if (fc->irm == fc->nodeid) { 1409 fc->status = FWBUSMGRDONE; 1410 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1411 fw_bmr(fc); 1412 } else { 1413 fc->status = FWBUSMGRELECT; 1414 callout_reset(&fc->bmr_callout, hz/8, 1415 (void *)fw_try_bmr, (void *)fc); 1416 } 1417 } else 1418 fc->status = FWBUSMGRDONE; 1419 1420 callout_reset(&fc->busprobe_callout, hz/4, 1421 (void *)fw_bus_probe, (void *)fc); 1422} 1423 1424/* 1425 * To probe devices on the IEEE1394 bus. 1426 */ 1427static void 1428fw_bus_probe(struct firewire_comm *fc) 1429{ 1430 int s; 1431 struct fw_device *fwdev; 1432 1433 s = splfw(); 1434 fc->status = FWBUSEXPLORE; 1435 1436 /* Invalidate all devices, just after bus reset. */ 1437 if (firewire_debug) 1438 device_printf(fc->bdev, "%s:" 1439 "iterate and invalidate all nodes\n", 1440 __func__); 1441 STAILQ_FOREACH(fwdev, &fc->devices, link) 1442 if (fwdev->status != FWDEVINVAL) { 1443 fwdev->status = FWDEVINVAL; 1444 fwdev->rcnt = 0; 1445 if (firewire_debug) 1446 device_printf(fc->bdev, "%s:" 1447 "Invalidate Dev ID: %08x%08x\n", 1448 __func__, fwdev->eui.hi, fwdev->eui.lo); 1449 } else { 1450 if (firewire_debug) 1451 device_printf(fc->bdev, "%s:" 1452 "Dev ID: %08x%08x already invalid\n", 1453 __func__, fwdev->eui.hi, fwdev->eui.lo); 1454 } 1455 splx(s); 1456 1457 wakeup((void *)fc); 1458} 1459 1460static int 1461fw_explore_read_quads(struct fw_device *fwdev, int offset, 1462 uint32_t *quad, int length) 1463{ 1464 struct fw_xfer *xfer; 1465 uint32_t tmp; 1466 int i, error; 1467 1468 for (i = 0; i < length; i ++, offset += sizeof(uint32_t)) { 1469 xfer = fwmem_read_quad(fwdev, NULL, -1, 1470 0xffff, 0xf0000000 | offset, (void *)&tmp, 1471 fw_xferwake); 1472 if (xfer == NULL) 1473 return (-1); 1474 fw_xferwait(xfer); 1475 1476 if (xfer->resp == 0) 1477 quad[i] = ntohl(tmp); 1478 1479 error = xfer->resp; 1480 fw_xfer_free(xfer); 1481 if (error) 1482 return (error); 1483 } 1484 return (0); 1485} 1486 1487 1488static int 1489fw_explore_csrblock(struct fw_device *fwdev, int offset, int recur) 1490{ 1491 int err, i, off; 1492 struct csrdirectory *dir; 1493 struct csrreg *reg; 1494 1495 dir = (struct csrdirectory *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1496 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1497 (uint32_t *)dir, 1); 1498 if (err) 1499 return (-1); 1500 1501 offset += sizeof(uint32_t); 1502 reg = (struct csrreg *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1503 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1504 (uint32_t *)reg, dir->crc_len); 1505 if (err) 1506 return (-1); 1507 1508 /* XXX check CRC */ 1509 1510 off = CSRROMOFF + offset + sizeof(uint32_t) * (dir->crc_len - 1); 1511 if (fwdev->rommax < off) 1512 fwdev->rommax = off; 1513 1514 if (recur == 0) 1515 return (0); 1516 1517 for (i = 0; i < dir->crc_len; i ++, offset += sizeof(uint32_t)) { 1518 if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_D) 1519 recur = 1; 1520 else if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_L) 1521 recur = 0; 1522 else 1523 continue; 1524 1525 off = offset + reg[i].val * sizeof(uint32_t); 1526 if (off > CROMSIZE) { 1527 printf("%s: invalid offset %d\n", __FUNCTION__, off); 1528 return(-1); 1529 } 1530 err = fw_explore_csrblock(fwdev, off, recur); 1531 if (err) 1532 return (-1); 1533 } 1534 return (0); 1535} 1536 1537static int 1538fw_explore_node(struct fw_device *dfwdev) 1539{ 1540 struct firewire_comm *fc; 1541 struct fw_device *fwdev, *pfwdev, *tfwdev; 1542 uint32_t *csr; 1543 struct csrhdr *hdr; 1544 struct bus_info *binfo; 1545 int err, node; 1546 uint32_t speed_test = 0; 1547 1548 fc = dfwdev->fc; 1549 csr = dfwdev->csrrom; 1550 node = dfwdev->dst; 1551 1552 /* First quad */ 1553 err = fw_explore_read_quads(dfwdev, CSRROMOFF, &csr[0], 1); 1554 if (err) { 1555 device_printf(fc->bdev, "%s: node%d: explore_read_quads failure\n", 1556 __func__, node); 1557 dfwdev->status = FWDEVINVAL; 1558 return (-1); 1559 } 1560 hdr = (struct csrhdr *)&csr[0]; 1561 if (hdr->info_len != 4) { 1562 if (firewire_debug) 1563 device_printf(fc->bdev, "%s: node%d: wrong bus info len(%d)\n", 1564 __func__, node, hdr->info_len); 1565 dfwdev->status = FWDEVINVAL; 1566 return (-1); 1567 } 1568 1569 /* bus info */ 1570 err = fw_explore_read_quads(dfwdev, CSRROMOFF + 0x04, &csr[1], 4); 1571 if (err) { 1572 device_printf(fc->bdev, "%s: node%d: error reading 0x04\n", 1573 __func__, node); 1574 dfwdev->status = FWDEVINVAL; 1575 return (-1); 1576 } 1577 binfo = (struct bus_info *)&csr[1]; 1578 if (binfo->bus_name != CSR_BUS_NAME_IEEE1394) { 1579 device_printf(fc->bdev, "%s: node%d: invalid bus name 0x%08x\n", 1580 __func__, node, binfo->bus_name); 1581 dfwdev->status = FWDEVINVAL; 1582 return (-1); 1583 } 1584 1585 if (firewire_debug) 1586 device_printf(fc->bdev, "%s: node(%d) BUS INFO BLOCK:\n" 1587 "irmc(%d) cmc(%d) isc(%d) bmc(%d) pmc(%d) " 1588 "cyc_clk_acc(%d) max_rec(%d) max_rom(%d) " 1589 "generation(%d) link_spd(%d)\n", 1590 __func__, node, 1591 binfo->irmc, binfo->cmc, binfo->isc, 1592 binfo->bmc, binfo->pmc, binfo->cyc_clk_acc, 1593 binfo->max_rec, binfo->max_rom, 1594 binfo->generation, binfo->link_spd); 1595 1596 STAILQ_FOREACH(fwdev, &fc->devices, link) 1597 if (FW_EUI64_EQUAL(fwdev->eui, binfo->eui64)) 1598 break; 1599 if (fwdev == NULL) { 1600 /* new device */ 1601 fwdev = malloc(sizeof(struct fw_device), M_FW, 1602 M_NOWAIT | M_ZERO); 1603 if (fwdev == NULL) { 1604 device_printf(fc->bdev, "%s: node%d: no memory\n", 1605 __func__, node); 1606 return (-1); 1607 } 1608 fwdev->fc = fc; 1609 fwdev->eui = binfo->eui64; 1610 fwdev->dst = dfwdev->dst; 1611 fwdev->maxrec = dfwdev->maxrec; 1612 fwdev->status = dfwdev->status; 1613 1614 /* 1615 * Pre-1394a-2000 didn't have link_spd in 1616 * the Bus Info block, so try and use the 1617 * speed map value. 1618 * 1394a-2000 compliant devices only use 1619 * the Bus Info Block link spd value, so 1620 * ignore the speed map alltogether. SWB 1621 */ 1622 if ( binfo->link_spd == FWSPD_S100 /* 0 */) { 1623 device_printf(fc->bdev, "%s: " 1624 "Pre 1394a-2000 detected\n", 1625 __func__); 1626 fwdev->speed = fc->speed_map->speed[fc->nodeid][node]; 1627 } else 1628 fwdev->speed = binfo->link_spd; 1629 /* 1630 * Test this speed with a read to the CSRROM. 1631 * If it fails, slow down the speed and retry. 1632 */ 1633 while (fwdev->speed > FWSPD_S100 /* 0 */) { 1634 err = fw_explore_read_quads(fwdev, CSRROMOFF, 1635 &speed_test, 1); 1636 if (err) { 1637 device_printf(fc->bdev, "%s: fwdev->speed(%s)" 1638 " decremented due to negotiation\n", 1639 __func__, 1640 linkspeed[fwdev->speed]); 1641 fwdev->speed--; 1642 } else 1643 break; 1644 1645 } 1646 1647 /* 1648 * If the fwdev is not found in the 1649 * fc->devices TAILQ, then we will add it. 1650 */ 1651 pfwdev = NULL; 1652 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1653 if (tfwdev->eui.hi > fwdev->eui.hi || 1654 (tfwdev->eui.hi == fwdev->eui.hi && 1655 tfwdev->eui.lo > fwdev->eui.lo)) 1656 break; 1657 pfwdev = tfwdev; 1658 } 1659 if (pfwdev == NULL) 1660 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1661 else 1662 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1663 1664 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1665 linkspeed[fwdev->speed], 1666 fwdev->eui.hi, fwdev->eui.lo); 1667 } else { 1668 fwdev->dst = node; 1669 fwdev->status = FWDEVINIT; 1670 /* unchanged ? */ 1671 if (bcmp(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5) == 0) { 1672 if (firewire_debug) 1673 device_printf(fc->dev, "node%d: crom unchanged\n", node); 1674 return (0); 1675 } 1676 } 1677 1678 bzero(&fwdev->csrrom[0], CROMSIZE); 1679 1680 /* copy first quad and bus info block */ 1681 bcopy(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5); 1682 fwdev->rommax = CSRROMOFF + sizeof(uint32_t) * 4; 1683 1684 err = fw_explore_csrblock(fwdev, 0x14, 1); /* root directory */ 1685 1686 if (err) { 1687 if (firewire_debug) 1688 device_printf(fc->dev, "%s: explore csrblock failed err(%d)\n", 1689 __func__, err); 1690 fwdev->status = FWDEVINVAL; 1691 fwdev->csrrom[0] = 0; 1692 } 1693 return (err); 1694 1695} 1696 1697/* 1698 * Find the self_id packet for a node, ignoring sequels. 1699 */ 1700static union fw_self_id * 1701fw_find_self_id(struct firewire_comm *fc, int node) 1702{ 1703 uint32_t i; 1704 union fw_self_id *s; 1705 1706 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1707 s = &fc->topology_map->self_id[i]; 1708 if (s->p0.sequel) 1709 continue; 1710 if (s->p0.phy_id == node) 1711 return s; 1712 } 1713 return 0; 1714} 1715 1716static void 1717fw_explore(struct firewire_comm *fc) 1718{ 1719 int node, err, s, i, todo, todo2, trys; 1720 char nodes[63]; 1721 struct fw_device dfwdev; 1722 union fw_self_id *fwsid; 1723 1724 todo = 0; 1725 /* setup dummy fwdev */ 1726 dfwdev.fc = fc; 1727 dfwdev.speed = 0; 1728 dfwdev.maxrec = 8; /* 512 */ 1729 dfwdev.status = FWDEVINIT; 1730 1731 for (node = 0; node <= fc->max_node; node ++) { 1732 /* We don't probe myself and linkdown nodes */ 1733 if (node == fc->nodeid) { 1734 if (firewire_debug) 1735 device_printf(fc->bdev, "%s:" 1736 "found myself node(%d) fc->nodeid(%d) fc->max_node(%d)\n", 1737 __func__, node, fc->nodeid, fc->max_node); 1738 continue; 1739 } else if (firewire_debug) { 1740 device_printf(fc->bdev, "%s:" 1741 "node(%d) fc->max_node(%d) found\n", 1742 __func__, node, fc->max_node); 1743 } 1744 fwsid = fw_find_self_id(fc, node); 1745 if (!fwsid || !fwsid->p0.link_active) { 1746 if (firewire_debug) 1747 device_printf(fc->bdev, "%s: node%d: link down\n", 1748 __func__, node); 1749 continue; 1750 } 1751 nodes[todo++] = node; 1752 } 1753 1754 s = splfw(); 1755 for (trys = 0; todo > 0 && trys < 3; trys ++) { 1756 todo2 = 0; 1757 for (i = 0; i < todo; i ++) { 1758 dfwdev.dst = nodes[i]; 1759 err = fw_explore_node(&dfwdev); 1760 if (err) 1761 nodes[todo2++] = nodes[i]; 1762 if (firewire_debug) 1763 device_printf(fc->bdev, "%s: node %d, err = %d\n", 1764 __func__, node, err); 1765 } 1766 todo = todo2; 1767 } 1768 splx(s); 1769} 1770 1771 1772static void 1773fw_bus_probe_thread(void *arg) 1774{ 1775 struct firewire_comm *fc; 1776 1777 fc = (struct firewire_comm *)arg; 1778 1779 mtx_lock(&fc->wait_lock); 1780 while (fc->status != FWBUSDETACH) { 1781 if (fc->status == FWBUSEXPLORE) { 1782 mtx_unlock(&fc->wait_lock); 1783 fw_explore(fc); 1784 fc->status = FWBUSEXPDONE; 1785 if (firewire_debug) 1786 printf("bus_explore done\n"); 1787 fw_attach_dev(fc); 1788 mtx_lock(&fc->wait_lock); 1789 } 1790 msleep((void *)fc, &fc->wait_lock, PWAIT|PCATCH, "-", 0); 1791 } 1792 mtx_unlock(&fc->wait_lock); 1793 kproc_exit(0); 1794} 1795 1796/* 1797 * To attach sub-devices layer onto IEEE1394 bus. 1798 */ 1799static void 1800fw_attach_dev(struct firewire_comm *fc) 1801{ 1802 struct fw_device *fwdev, *next; 1803 int i, err; 1804 device_t *devlistp; 1805 int devcnt; 1806 struct firewire_dev_comm *fdc; 1807 1808 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1809 next = STAILQ_NEXT(fwdev, link); 1810 if (fwdev->status == FWDEVINIT) { 1811 fwdev->status = FWDEVATTACHED; 1812 } else if (fwdev->status == FWDEVINVAL) { 1813 fwdev->rcnt ++; 1814 if (firewire_debug) 1815 device_printf(fc->bdev, "%s:" 1816 "fwdev->rcnt(%d), hold_count(%d)\n", 1817 __func__, fwdev->rcnt, hold_count); 1818 if (fwdev->rcnt > hold_count) { 1819 /* 1820 * Remove devices which have not been seen 1821 * for a while. 1822 */ 1823 device_printf(fc->bdev, "%s:" 1824 "Removing missing device ID:%08x%08x\n", 1825 __func__, fwdev->eui.hi, fwdev->eui.lo); 1826 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1827 link); 1828 free(fwdev, M_FW); 1829 } 1830 } 1831 } 1832 1833 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1834 if( err == 0 ) { 1835 for( i = 0 ; i < devcnt ; i++){ 1836 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1837 fdc = device_get_softc(devlistp[i]); 1838 if (fdc->post_explore != NULL) 1839 fdc->post_explore(fdc); 1840 } 1841 } 1842 free(devlistp, M_TEMP); 1843 } 1844 1845 return; 1846} 1847 1848/* 1849 * To allocate unique transaction label. 1850 */ 1851static int 1852fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1853{ 1854 u_int dst, new_tlabel; 1855 struct fw_xfer *txfer; 1856 int s; 1857 1858 dst = xfer->send.hdr.mode.hdr.dst & 0x3f; 1859 s = splfw(); 1860 mtx_lock(&fc->tlabel_lock); 1861 new_tlabel = (fc->last_tlabel[dst] + 1) & 0x3f; 1862 STAILQ_FOREACH(txfer, &fc->tlabels[new_tlabel], tlabel) 1863 if ((txfer->send.hdr.mode.hdr.dst & 0x3f) == dst) 1864 break; 1865 if(txfer == NULL) { 1866 fc->last_tlabel[dst] = new_tlabel; 1867 STAILQ_INSERT_TAIL(&fc->tlabels[new_tlabel], xfer, tlabel); 1868 mtx_unlock(&fc->tlabel_lock); 1869 splx(s); 1870 xfer->tl = new_tlabel; 1871 xfer->send.hdr.mode.hdr.tlrt = new_tlabel << 2; 1872 if (firewire_debug > 1) 1873 printf("fw_get_tlabel: dst=%d tl=%d\n", dst, new_tlabel); 1874 return (new_tlabel); 1875 } 1876 mtx_unlock(&fc->tlabel_lock); 1877 splx(s); 1878 1879 if (firewire_debug > 1) 1880 printf("fw_get_tlabel: no free tlabel\n"); 1881 return (-1); 1882} 1883 1884static void 1885fw_rcv_copy(struct fw_rcv_buf *rb) 1886{ 1887 struct fw_pkt *pkt; 1888 u_char *p; 1889 struct tcode_info *tinfo; 1890 u_int res, i, len, plen; 1891 1892 rb->xfer->recv.spd = rb->spd; 1893 1894 pkt = (struct fw_pkt *)rb->vec->iov_base; 1895 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1896 1897 /* Copy header */ 1898 p = (u_char *)&rb->xfer->recv.hdr; 1899 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1900 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1901 rb->vec->iov_len -= tinfo->hdr_len; 1902 1903 /* Copy payload */ 1904 p = (u_char *)rb->xfer->recv.payload; 1905 res = rb->xfer->recv.pay_len; 1906 1907 /* special handling for RRESQ */ 1908 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1909 p != NULL && res >= sizeof(uint32_t)) { 1910 *(uint32_t *)p = pkt->mode.rresq.data; 1911 rb->xfer->recv.pay_len = sizeof(uint32_t); 1912 return; 1913 } 1914 1915 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1916 return; 1917 1918 plen = pkt->mode.rresb.len; 1919 1920 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1921 len = MIN(rb->vec->iov_len, plen); 1922 if (res < len) { 1923 device_printf(rb->fc->bdev, "%s:" 1924 " rcv buffer(%d) is %d bytes short.\n", 1925 __func__, rb->xfer->recv.pay_len, len - res); 1926 len = res; 1927 } 1928 bcopy(rb->vec->iov_base, p, len); 1929 p += len; 1930 res -= len; 1931 plen -= len; 1932 if (res == 0 || plen == 0) 1933 break; 1934 } 1935 rb->xfer->recv.pay_len -= res; 1936 1937} 1938 1939/* 1940 * Generic packet receiving process. 1941 */ 1942void 1943fw_rcv(struct fw_rcv_buf *rb) 1944{ 1945 struct fw_pkt *fp, *resfp; 1946 struct fw_bind *bind; 1947 int tcode; 1948 int i, len, oldstate; 1949#if 0 1950 { 1951 uint32_t *qld; 1952 int i; 1953 qld = (uint32_t *)buf; 1954 printf("spd %d len:%d\n", spd, len); 1955 for( i = 0 ; i <= len && i < 32; i+= 4){ 1956 printf("0x%08x ", ntohl(qld[i/4])); 1957 if((i % 16) == 15) printf("\n"); 1958 } 1959 if((i % 16) != 15) printf("\n"); 1960 } 1961#endif 1962 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1963 tcode = fp->mode.common.tcode; 1964 switch (tcode) { 1965 case FWTCODE_WRES: 1966 case FWTCODE_RRESQ: 1967 case FWTCODE_RRESB: 1968 case FWTCODE_LRES: 1969 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1970 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tcode); 1971 if(rb->xfer == NULL) { 1972 device_printf(rb->fc->bdev, "%s: " 1973 "unknown response " 1974 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1975 __func__, 1976 tcode_str[tcode], tcode, 1977 fp->mode.hdr.src, 1978 fp->mode.hdr.tlrt >> 2, 1979 fp->mode.hdr.tlrt & 3, 1980 fp->mode.rresq.data); 1981#if 0 1982 printf("try ad-hoc work around!!\n"); 1983 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1984 (fp->mode.hdr.tlrt >> 2)^3); 1985 if (rb->xfer == NULL) { 1986 printf("no use...\n"); 1987 return; 1988 } 1989#else 1990 return; 1991#endif 1992 } 1993 fw_rcv_copy(rb); 1994 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1995 rb->xfer->resp = EIO; 1996 else 1997 rb->xfer->resp = 0; 1998 /* make sure the packet is drained in AT queue */ 1999 oldstate = rb->xfer->flag; 2000 rb->xfer->flag = FWXF_RCVD; 2001 switch (oldstate) { 2002 case FWXF_SENT: 2003 fw_xfer_done(rb->xfer); 2004 break; 2005 case FWXF_START: 2006#if 0 2007 if (firewire_debug) 2008 printf("not sent yet tl=%x\n", rb->xfer->tl); 2009#endif 2010 break; 2011 default: 2012 device_printf(rb->fc->bdev, "%s: " 2013 "unexpected flag 0x%02x\n", __func__, rb->xfer->flag); 2014 } 2015 return; 2016 case FWTCODE_WREQQ: 2017 case FWTCODE_WREQB: 2018 case FWTCODE_RREQQ: 2019 case FWTCODE_RREQB: 2020 case FWTCODE_LREQ: 2021 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 2022 fp->mode.rreqq.dest_lo); 2023 if(bind == NULL){ 2024 device_printf(rb->fc->bdev, "%s: " 2025 "Unknown service addr 0x%04x:0x%08x %s(%x)" 2026#if defined(__DragonFly__) || __FreeBSD_version < 500000 2027 " src=0x%x data=%lx\n", 2028#else 2029 " src=0x%x data=%x\n", 2030#endif 2031 __func__, 2032 fp->mode.wreqq.dest_hi, 2033 fp->mode.wreqq.dest_lo, 2034 tcode_str[tcode], tcode, 2035 fp->mode.hdr.src, 2036 ntohl(fp->mode.wreqq.data)); 2037 2038 if (rb->fc->status == FWBUSINIT) { 2039 device_printf(rb->fc->bdev, "%s: cannot respond(bus reset)!\n", 2040 __func__); 2041 return; 2042 } 2043 rb->xfer = fw_xfer_alloc(M_FWXFER); 2044 if(rb->xfer == NULL){ 2045 return; 2046 } 2047 rb->xfer->send.spd = rb->spd; 2048 rb->xfer->send.pay_len = 0; 2049 resfp = &rb->xfer->send.hdr; 2050 switch (tcode) { 2051 case FWTCODE_WREQQ: 2052 case FWTCODE_WREQB: 2053 resfp->mode.hdr.tcode = FWTCODE_WRES; 2054 break; 2055 case FWTCODE_RREQQ: 2056 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 2057 break; 2058 case FWTCODE_RREQB: 2059 resfp->mode.hdr.tcode = FWTCODE_RRESB; 2060 break; 2061 case FWTCODE_LREQ: 2062 resfp->mode.hdr.tcode = FWTCODE_LRES; 2063 break; 2064 } 2065 resfp->mode.hdr.dst = fp->mode.hdr.src; 2066 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 2067 resfp->mode.hdr.pri = fp->mode.hdr.pri; 2068 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 2069 resfp->mode.rresb.extcode = 0; 2070 resfp->mode.rresb.len = 0; 2071/* 2072 rb->xfer->hand = fw_xferwake; 2073*/ 2074 rb->xfer->hand = fw_xfer_free; 2075 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 2076 fw_xfer_free(rb->xfer); 2077 return; 2078 } 2079 return; 2080 } 2081 len = 0; 2082 for (i = 0; i < rb->nvec; i ++) 2083 len += rb->vec[i].iov_len; 2084 rb->xfer = STAILQ_FIRST(&bind->xferlist); 2085 if (rb->xfer == NULL) { 2086 device_printf(rb->fc->bdev, "%s: " 2087 "Discard a packet for this bind.\n", 2088 __func__); 2089 return; 2090 } 2091 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 2092 fw_rcv_copy(rb); 2093 rb->xfer->hand(rb->xfer); 2094 return; 2095#if 0 /* shouldn't happen ?? or for GASP */ 2096 case FWTCODE_STREAM: 2097 { 2098 struct fw_xferq *xferq; 2099 2100 xferq = rb->fc->ir[sub]; 2101#if 0 2102 printf("stream rcv dma %d len %d off %d spd %d\n", 2103 sub, len, off, spd); 2104#endif 2105 if(xferq->queued >= xferq->maxq) { 2106 printf("receive queue is full\n"); 2107 return; 2108 } 2109 /* XXX get xfer from xfer queue, we don't need copy for 2110 per packet mode */ 2111 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 2112 vec[0].iov_len); 2113 if (rb->xfer == NULL) 2114 return; 2115 fw_rcv_copy(rb) 2116 s = splfw(); 2117 xferq->queued++; 2118 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 2119 splx(s); 2120 sc = device_get_softc(rb->fc->bdev); 2121#if defined(__DragonFly__) || __FreeBSD_version < 500000 2122 if (&xferq->rsel.si_pid != 0) 2123#else 2124 if (SEL_WAITING(&xferq->rsel)) 2125#endif 2126 selwakeuppri(&xferq->rsel, FWPRI); 2127 if (xferq->flag & FWXFERQ_WAKEUP) { 2128 xferq->flag &= ~FWXFERQ_WAKEUP; 2129 wakeup((caddr_t)xferq); 2130 } 2131 if (xferq->flag & FWXFERQ_HANDLER) { 2132 xferq->hand(xferq); 2133 } 2134 return; 2135 break; 2136 } 2137#endif 2138 default: 2139 device_printf(rb->fc->bdev,"%s: unknown tcode %d\n", 2140 __func__, tcode); 2141 break; 2142 } 2143} 2144 2145/* 2146 * Post process for Bus Manager election process. 2147 */ 2148static void 2149fw_try_bmr_callback(struct fw_xfer *xfer) 2150{ 2151 struct firewire_comm *fc; 2152 int bmr; 2153 2154 if (xfer == NULL) 2155 return; 2156 fc = xfer->fc; 2157 if (xfer->resp != 0) 2158 goto error; 2159 if (xfer->recv.payload == NULL) 2160 goto error; 2161 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2162 goto error; 2163 2164 bmr = ntohl(xfer->recv.payload[0]); 2165 if (bmr == 0x3f) 2166 bmr = fc->nodeid; 2167 2168 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2169 fw_xfer_free_buf(xfer); 2170 fw_bmr(fc); 2171 return; 2172 2173error: 2174 device_printf(fc->bdev, "bus manager election failed\n"); 2175 fw_xfer_free_buf(xfer); 2176} 2177 2178 2179/* 2180 * To candidate Bus Manager election process. 2181 */ 2182static void 2183fw_try_bmr(void *arg) 2184{ 2185 struct fw_xfer *xfer; 2186 struct firewire_comm *fc = (struct firewire_comm *)arg; 2187 struct fw_pkt *fp; 2188 int err = 0; 2189 2190 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2191 if(xfer == NULL){ 2192 return; 2193 } 2194 xfer->send.spd = 0; 2195 fc->status = FWBUSMGRELECT; 2196 2197 fp = &xfer->send.hdr; 2198 fp->mode.lreq.dest_hi = 0xffff; 2199 fp->mode.lreq.tlrt = 0; 2200 fp->mode.lreq.tcode = FWTCODE_LREQ; 2201 fp->mode.lreq.pri = 0; 2202 fp->mode.lreq.src = 0; 2203 fp->mode.lreq.len = 8; 2204 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2205 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2206 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2207 xfer->send.payload[0] = htonl(0x3f); 2208 xfer->send.payload[1] = htonl(fc->nodeid); 2209 xfer->hand = fw_try_bmr_callback; 2210 2211 err = fw_asyreq(fc, -1, xfer); 2212 if(err){ 2213 fw_xfer_free_buf(xfer); 2214 return; 2215 } 2216 return; 2217} 2218 2219#ifdef FW_VMACCESS 2220/* 2221 * Software implementation for physical memory block access. 2222 * XXX:Too slow, usef for debug purpose only. 2223 */ 2224static void 2225fw_vmaccess(struct fw_xfer *xfer){ 2226 struct fw_pkt *rfp, *sfp = NULL; 2227 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2228 2229 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2230 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2231 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2232 if(xfer->resp != 0){ 2233 fw_xfer_free( xfer); 2234 return; 2235 } 2236 if(xfer->recv.buf == NULL){ 2237 fw_xfer_free( xfer); 2238 return; 2239 } 2240 rfp = (struct fw_pkt *)xfer->recv.buf; 2241 switch(rfp->mode.hdr.tcode){ 2242 /* XXX need fix for 64bit arch */ 2243 case FWTCODE_WREQB: 2244 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2245 xfer->send.len = 12; 2246 sfp = (struct fw_pkt *)xfer->send.buf; 2247 bcopy(rfp->mode.wreqb.payload, 2248 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2249 sfp->mode.wres.tcode = FWTCODE_WRES; 2250 sfp->mode.wres.rtcode = 0; 2251 break; 2252 case FWTCODE_WREQQ: 2253 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2254 xfer->send.len = 12; 2255 sfp->mode.wres.tcode = FWTCODE_WRES; 2256 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2257 sfp->mode.wres.rtcode = 0; 2258 break; 2259 case FWTCODE_RREQB: 2260 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2261 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2262 sfp = (struct fw_pkt *)xfer->send.buf; 2263 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2264 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2265 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2266 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2267 sfp->mode.rresb.rtcode = 0; 2268 sfp->mode.rresb.extcode = 0; 2269 break; 2270 case FWTCODE_RREQQ: 2271 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2272 xfer->send.len = 16; 2273 sfp = (struct fw_pkt *)xfer->send.buf; 2274 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2275 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2276 sfp->mode.rresb.rtcode = 0; 2277 break; 2278 default: 2279 fw_xfer_free( xfer); 2280 return; 2281 } 2282 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2283 xfer->dst = ntohs(rfp->mode.hdr.src); 2284 xfer->hand = fw_xfer_free; 2285 2286 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2287 sfp->mode.hdr.pri = 0; 2288 2289 fw_asyreq(xfer->fc, -1, xfer); 2290/**/ 2291 return; 2292} 2293#endif 2294 2295/* 2296 * CRC16 check-sum for IEEE1394 register blocks. 2297 */ 2298uint16_t 2299fw_crc16(uint32_t *ptr, uint32_t len){ 2300 uint32_t i, sum, crc = 0; 2301 int shift; 2302 len = (len + 3) & ~3; 2303 for(i = 0 ; i < len ; i+= 4){ 2304 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2305 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2306 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2307 } 2308 crc &= 0xffff; 2309 } 2310 return((uint16_t) crc); 2311} 2312 2313/* 2314 * Find the root node, if it is not 2315 * Cycle Master Capable, then we should 2316 * override this and become the Cycle 2317 * Master 2318 */ 2319static int 2320fw_bmr(struct firewire_comm *fc) 2321{ 2322 struct fw_device fwdev; 2323 union fw_self_id *self_id; 2324 int cmstr; 2325 uint32_t quad; 2326 2327 /* Check to see if the current root node is cycle master capable */ 2328 self_id = fw_find_self_id(fc, fc->max_node); 2329 if (fc->max_node > 0) { 2330 /* XXX check cmc bit of businfo block rather than contender */ 2331 if (self_id->p0.link_active && self_id->p0.contender) 2332 cmstr = fc->max_node; 2333 else { 2334 device_printf(fc->bdev, 2335 "root node is not cycle master capable\n"); 2336 /* XXX shall we be the cycle master? */ 2337 cmstr = fc->nodeid; 2338 /* XXX need bus reset */ 2339 } 2340 } else 2341 cmstr = -1; 2342 2343 device_printf(fc->bdev, "bus manager %d %s\n", 2344 CSRARC(fc, BUS_MGR_ID), 2345 (CSRARC(fc, BUS_MGR_ID) != fc->nodeid) ? "(me)" : ""); 2346 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2347 /* We are not the bus manager */ 2348 return(0); 2349 } 2350 2351 /* Optimize gapcount */ 2352 if(fc->max_hop <= MAX_GAPHOP ) 2353 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2354 /* If we are the cycle master, nothing to do */ 2355 if (cmstr == fc->nodeid || cmstr == -1) 2356 return 0; 2357 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2358 bzero(&fwdev, sizeof(fwdev)); 2359 fwdev.fc = fc; 2360 fwdev.dst = cmstr; 2361 fwdev.speed = 0; 2362 fwdev.maxrec = 8; /* 512 */ 2363 fwdev.status = FWDEVINIT; 2364 /* Set cmstr bit on the cycle master */ 2365 quad = htonl(1 << 8); 2366 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2367 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2368 2369 return 0; 2370} 2371 2372int 2373fw_open_isodma(struct firewire_comm *fc, int tx) 2374{ 2375 struct fw_xferq **xferqa; 2376 struct fw_xferq *xferq; 2377 int i; 2378 2379 if (tx) 2380 xferqa = &fc->it[0]; 2381 else 2382 xferqa = &fc->ir[0]; 2383 2384 FW_GLOCK(fc); 2385 for (i = 0; i < fc->nisodma; i ++) { 2386 xferq = xferqa[i]; 2387 if ((xferq->flag & FWXFERQ_OPEN) == 0) { 2388 xferq->flag |= FWXFERQ_OPEN; 2389 break; 2390 } 2391 } 2392 if (i == fc->nisodma) { 2393 printf("no free dma channel (tx=%d)\n", tx); 2394 i = -1; 2395 } 2396 FW_GUNLOCK(fc); 2397 return (i); 2398} 2399 2400static int 2401fw_modevent(module_t mode, int type, void *data) 2402{ 2403 int err = 0; 2404#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2405 static eventhandler_tag fwdev_ehtag = NULL; 2406#endif 2407 2408 switch (type) { 2409 case MOD_LOAD: 2410#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2411 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2412 fwdev_clone, 0, 1000); 2413#endif 2414 break; 2415 case MOD_UNLOAD: 2416#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2417 if (fwdev_ehtag != NULL) 2418 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2419#endif 2420 break; 2421 case MOD_SHUTDOWN: 2422 break; 2423 default: 2424 return (EOPNOTSUPP); 2425 } 2426 return (err); 2427} 2428 2429 2430#ifdef __DragonFly__ 2431DECLARE_DUMMY_MODULE(firewire); 2432#endif 2433DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2434MODULE_VERSION(firewire, 1); 2435