firewire.c revision 188726
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 188726 2009-02-17 19:37:04Z sbruno $ 35 * 36 */ 37 38#include <sys/param.h> 39#include <sys/systm.h> 40#include <sys/types.h> 41 42#include <sys/kernel.h> 43#include <sys/module.h> 44#include <sys/malloc.h> 45#include <sys/conf.h> 46#include <sys/sysctl.h> 47#include <sys/kthread.h> 48#include <sys/vimage.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 src->businfo.generation = 0; 689 src->businfo.link_spd = fc->speed; 690 691 src->businfo.eui64.hi = fc->eui.hi; 692 src->businfo.eui64.lo = fc->eui.lo; 693 694 STAILQ_INIT(&src->chunk_list); 695 696 fc->crom_src = src; 697 fc->crom_root = &fc->crom_src_buf->root; 698} 699 700static void 701fw_reset_crom(struct firewire_comm *fc) 702{ 703 struct crom_src_buf *buf; 704 struct crom_src *src; 705 struct crom_chunk *root; 706 707 buf = fc->crom_src_buf; 708 src = fc->crom_src; 709 root = fc->crom_root; 710 711 STAILQ_INIT(&src->chunk_list); 712 713 bzero(root, sizeof(struct crom_chunk)); 714 crom_add_chunk(src, NULL, root, 0); 715 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 716 /* private company_id */ 717 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 718#ifdef __DragonFly__ 719 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 720 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version); 721#else 722 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 723 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 724#endif 725 crom_add_simple_text(src, root, &buf->hw, G_hostname); 726} 727 728/* 729 * Called after bus reset. 730 */ 731void 732fw_busreset(struct firewire_comm *fc, uint32_t new_status) 733{ 734 struct firewire_dev_comm *fdc; 735 struct crom_src *src; 736 device_t *devlistp; 737 int i, devcnt; 738 739 FW_GLOCK_ASSERT(fc); 740 if (fc->status == FWBUSMGRELECT) 741 callout_stop(&fc->bmr_callout); 742 743 fc->status = new_status; 744 fw_reset_csr(fc); 745 746 if (fc->status == FWBUSNOTREADY) 747 fw_init_crom(fc); 748 749 fw_reset_crom(fc); 750 751 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 752 for( i = 0 ; i < devcnt ; i++) 753 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 754 fdc = device_get_softc(devlistp[i]); 755 if (fdc->post_busreset != NULL) 756 fdc->post_busreset(fdc); 757 } 758 free(devlistp, M_TEMP); 759 } 760 761 src = &fc->crom_src_buf->src; 762 /* 763 * If the old config rom needs to be overwritten, 764 * bump the businfo.generation indicator to 765 * indicate that we need to be reprobed 766 */ 767 if (bcmp(src, fc->config_rom, CROMSIZE) != 0) { 768 /* generation is a 2 bit field */ 769 /* valid values are only from 0 - 3 */ 770 src->businfo.generation = 1; 771 bcopy(src, (void *)fc->config_rom, CROMSIZE); 772 } else 773 src->businfo.generation = 0; 774} 775 776/* Call once after reboot */ 777void fw_init(struct firewire_comm *fc) 778{ 779 int i; 780#ifdef FW_VMACCESS 781 struct fw_xfer *xfer; 782 struct fw_bind *fwb; 783#endif 784 785 fc->arq->queued = 0; 786 fc->ars->queued = 0; 787 fc->atq->queued = 0; 788 fc->ats->queued = 0; 789 790 fc->arq->buf = NULL; 791 fc->ars->buf = NULL; 792 fc->atq->buf = NULL; 793 fc->ats->buf = NULL; 794 795 fc->arq->flag = 0; 796 fc->ars->flag = 0; 797 fc->atq->flag = 0; 798 fc->ats->flag = 0; 799 800 STAILQ_INIT(&fc->atq->q); 801 STAILQ_INIT(&fc->ats->q); 802 803 for( i = 0 ; i < fc->nisodma ; i ++ ){ 804 fc->it[i]->queued = 0; 805 fc->ir[i]->queued = 0; 806 807 fc->it[i]->start = NULL; 808 fc->ir[i]->start = NULL; 809 810 fc->it[i]->buf = NULL; 811 fc->ir[i]->buf = NULL; 812 813 fc->it[i]->flag = FWXFERQ_STREAM; 814 fc->ir[i]->flag = FWXFERQ_STREAM; 815 816 STAILQ_INIT(&fc->it[i]->q); 817 STAILQ_INIT(&fc->ir[i]->q); 818 } 819 820 fc->arq->maxq = FWMAXQUEUE; 821 fc->ars->maxq = FWMAXQUEUE; 822 fc->atq->maxq = FWMAXQUEUE; 823 fc->ats->maxq = FWMAXQUEUE; 824 825 for( i = 0 ; i < fc->nisodma ; i++){ 826 fc->ir[i]->maxq = FWMAXQUEUE; 827 fc->it[i]->maxq = FWMAXQUEUE; 828 } 829 830 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 831 CSRARC(fc, TOPO_MAP + 4) = 1; 832 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 833 CSRARC(fc, SPED_MAP + 4) = 1; 834 835 STAILQ_INIT(&fc->devices); 836 837/* Initialize Async handlers */ 838 STAILQ_INIT(&fc->binds); 839 for( i = 0 ; i < 0x40 ; i++){ 840 STAILQ_INIT(&fc->tlabels[i]); 841 } 842 843/* DV depend CSRs see blue book */ 844#if 0 845 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 846 CSRARC(fc, oPCR) = 0x8000007a; 847 for(i = 4 ; i < 0x7c/4 ; i+=4){ 848 CSRARC(fc, i + oPCR) = 0x8000007a; 849 } 850 851 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 852 CSRARC(fc, iPCR) = 0x803f0000; 853 for(i = 4 ; i < 0x7c/4 ; i+=4){ 854 CSRARC(fc, i + iPCR) = 0x0; 855 } 856#endif 857 858 fc->crom_src_buf = NULL; 859 860#ifdef FW_VMACCESS 861 xfer = fw_xfer_alloc(); 862 if(xfer == NULL) return; 863 864 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 865 if(fwb == NULL){ 866 fw_xfer_free(xfer); 867 return; 868 } 869 xfer->hand = fw_vmaccess; 870 xfer->fc = fc; 871 xfer->sc = NULL; 872 873 fwb->start_hi = 0x2; 874 fwb->start_lo = 0; 875 fwb->addrlen = 0xffffffff; 876 fwb->xfer = xfer; 877 fw_bindadd(fc, fwb); 878#endif 879} 880 881#define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 882 ((fwb)->end < (addr))?1:0) 883 884/* 885 * To lookup bound process from IEEE1394 address. 886 */ 887struct fw_bind * 888fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 889{ 890 u_int64_t addr; 891 struct fw_bind *tfw, *r = NULL; 892 893 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 894 FW_GLOCK(fc); 895 STAILQ_FOREACH(tfw, &fc->binds, fclist) 896 if (BIND_CMP(addr, tfw) == 0) { 897 r = tfw; 898 break; 899 } 900 FW_GUNLOCK(fc); 901 return(r); 902} 903 904/* 905 * To bind IEEE1394 address block to process. 906 */ 907int 908fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 909{ 910 struct fw_bind *tfw, *prev = NULL; 911 int r = 0; 912 913 if (fwb->start > fwb->end) { 914 printf("%s: invalid range\n", __func__); 915 return EINVAL; 916 } 917 918 FW_GLOCK(fc); 919 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 920 if (fwb->end < tfw->start) 921 break; 922 prev = tfw; 923 } 924 if (prev == NULL) 925 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 926 else if (prev->end < fwb->start) 927 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 928 else { 929 printf("%s: bind failed\n", __func__); 930 r = EBUSY; 931 } 932 FW_GUNLOCK(fc); 933 return (r); 934} 935 936/* 937 * To free IEEE1394 address block. 938 */ 939int 940fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 941{ 942#if 0 943 struct fw_xfer *xfer, *next; 944#endif 945 struct fw_bind *tfw; 946 int s; 947 948 s = splfw(); 949 FW_GLOCK(fc); 950 STAILQ_FOREACH(tfw, &fc->binds, fclist) 951 if (tfw == fwb) { 952 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 953 goto found; 954 } 955 956 printf("%s: no such binding\n", __func__); 957 FW_GUNLOCK(fc); 958 splx(s); 959 return (1); 960found: 961#if 0 962 /* shall we do this? */ 963 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 964 next = STAILQ_NEXT(xfer, link); 965 fw_xfer_free(xfer); 966 } 967 STAILQ_INIT(&fwb->xferlist); 968#endif 969 FW_GUNLOCK(fc); 970 971 splx(s); 972 return 0; 973} 974 975int 976fw_xferlist_add(struct fw_xferlist *q, struct malloc_type *type, 977 int slen, int rlen, int n, 978 struct firewire_comm *fc, void *sc, void (*hand)(struct fw_xfer *)) 979{ 980 int i, s; 981 struct fw_xfer *xfer; 982 983 for (i = 0; i < n; i++) { 984 xfer = fw_xfer_alloc_buf(type, slen, rlen); 985 if (xfer == NULL) 986 return (n); 987 xfer->fc = fc; 988 xfer->sc = sc; 989 xfer->hand = hand; 990 s = splfw(); 991 STAILQ_INSERT_TAIL(q, xfer, link); 992 splx(s); 993 } 994 return (n); 995} 996 997void 998fw_xferlist_remove(struct fw_xferlist *q) 999{ 1000 struct fw_xfer *xfer, *next; 1001 1002 for (xfer = STAILQ_FIRST(q); xfer != NULL; xfer = next) { 1003 next = STAILQ_NEXT(xfer, link); 1004 fw_xfer_free_buf(xfer); 1005 } 1006 STAILQ_INIT(q); 1007} 1008/* 1009 * dump packet header 1010 */ 1011static void 1012fw_dump_hdr(struct fw_pkt *fp, char *prefix) 1013{ 1014 printf("%s: dst=0x%02x tl=0x%02x rt=%d tcode=0x%x pri=0x%x " 1015 "src=0x%03x\n", prefix, 1016 fp->mode.hdr.dst & 0x3f, 1017 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tlrt & 3, 1018 fp->mode.hdr.tcode, fp->mode.hdr.pri, 1019 fp->mode.hdr.src); 1020} 1021 1022/* 1023 * To free transaction label. 1024 */ 1025static void 1026fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 1027{ 1028 struct fw_xfer *txfer; 1029 int s; 1030 1031 if (xfer->tl < 0) 1032 return; 1033 1034 s = splfw(); 1035 mtx_lock(&fc->tlabel_lock); 1036#if 1 /* make sure the label is allocated */ 1037 STAILQ_FOREACH(txfer, &fc->tlabels[xfer->tl], tlabel) 1038 if(txfer == xfer) 1039 break; 1040 if (txfer == NULL) { 1041 printf("%s: the xfer is not in the queue " 1042 "(tlabel=%d, flag=0x%x)\n", 1043 __FUNCTION__, xfer->tl, xfer->flag); 1044 fw_dump_hdr(&xfer->send.hdr, "send"); 1045 fw_dump_hdr(&xfer->recv.hdr, "recv"); 1046 kdb_backtrace(); 1047 mtx_unlock(&fc->tlabel_lock); 1048 splx(s); 1049 return; 1050 } 1051#endif 1052 1053 STAILQ_REMOVE(&fc->tlabels[xfer->tl], xfer, fw_xfer, tlabel); 1054 mtx_unlock(&fc->tlabel_lock); 1055 splx(s); 1056 return; 1057} 1058 1059/* 1060 * To obtain XFER structure by transaction label. 1061 */ 1062static struct fw_xfer * 1063fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel, int tcode) 1064{ 1065 struct fw_xfer *xfer; 1066 int s = splfw(); 1067 int req; 1068 1069 mtx_lock(&fc->tlabel_lock); 1070 STAILQ_FOREACH(xfer, &fc->tlabels[tlabel], tlabel) 1071 if(xfer->send.hdr.mode.hdr.dst == node) { 1072 mtx_unlock(&fc->tlabel_lock); 1073 splx(s); 1074 KASSERT(xfer->tl == tlabel, 1075 ("xfer->tl 0x%x != 0x%x", xfer->tl, tlabel)); 1076 /* extra sanity check */ 1077 req = xfer->send.hdr.mode.hdr.tcode; 1078 if (xfer->fc->tcode[req].valid_res != tcode) { 1079 printf("%s: invalid response tcode " 1080 "(0x%x for 0x%x)\n", __FUNCTION__, 1081 tcode, req); 1082 return(NULL); 1083 } 1084 1085 if (firewire_debug > 2) 1086 printf("fw_tl2xfer: found tl=%d\n", tlabel); 1087 return(xfer); 1088 } 1089 mtx_unlock(&fc->tlabel_lock); 1090 if (firewire_debug > 1) 1091 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 1092 splx(s); 1093 return(NULL); 1094} 1095 1096/* 1097 * To allocate IEEE1394 XFER structure. 1098 */ 1099struct fw_xfer * 1100fw_xfer_alloc(struct malloc_type *type) 1101{ 1102 struct fw_xfer *xfer; 1103 1104 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 1105 if (xfer == NULL) 1106 return xfer; 1107 1108 xfer->malloc = type; 1109 1110 return xfer; 1111} 1112 1113struct fw_xfer * 1114fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 1115{ 1116 struct fw_xfer *xfer; 1117 1118 xfer = fw_xfer_alloc(type); 1119 if (xfer == NULL) 1120 return(NULL); 1121 xfer->send.pay_len = send_len; 1122 xfer->recv.pay_len = recv_len; 1123 if (send_len > 0) { 1124 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 1125 if (xfer->send.payload == NULL) { 1126 fw_xfer_free(xfer); 1127 return(NULL); 1128 } 1129 } 1130 if (recv_len > 0) { 1131 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 1132 if (xfer->recv.payload == NULL) { 1133 if (xfer->send.payload != NULL) 1134 free(xfer->send.payload, type); 1135 fw_xfer_free(xfer); 1136 return(NULL); 1137 } 1138 } 1139 return(xfer); 1140} 1141 1142/* 1143 * IEEE1394 XFER post process. 1144 */ 1145void 1146fw_xfer_done(struct fw_xfer *xfer) 1147{ 1148 if (xfer->hand == NULL) { 1149 printf("hand == NULL\n"); 1150 return; 1151 } 1152 1153 if (xfer->fc == NULL) 1154 panic("fw_xfer_done: why xfer->fc is NULL?"); 1155 1156 fw_tl_free(xfer->fc, xfer); 1157 xfer->hand(xfer); 1158} 1159 1160void 1161fw_xfer_unload(struct fw_xfer* xfer) 1162{ 1163 int s; 1164 1165 if(xfer == NULL ) return; 1166 if(xfer->flag & FWXF_INQ){ 1167 printf("fw_xfer_free FWXF_INQ\n"); 1168 s = splfw(); 1169 FW_GLOCK(xfer->fc); 1170 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1171#if 0 1172 xfer->q->queued --; 1173#endif 1174 FW_GUNLOCK(xfer->fc); 1175 splx(s); 1176 } 1177 if (xfer->fc != NULL) { 1178#if 1 1179 if(xfer->flag & FWXF_START) 1180 /* 1181 * This could happen if: 1182 * 1. We call fwohci_arcv() before fwohci_txd(). 1183 * 2. firewire_watch() is called. 1184 */ 1185 printf("fw_xfer_free FWXF_START\n"); 1186#endif 1187 } 1188 xfer->flag = FWXF_INIT; 1189 xfer->resp = 0; 1190} 1191/* 1192 * To free IEEE1394 XFER structure. 1193 */ 1194void 1195fw_xfer_free_buf( struct fw_xfer* xfer) 1196{ 1197 if (xfer == NULL) { 1198 printf("%s: xfer == NULL\n", __func__); 1199 return; 1200 } 1201 fw_xfer_unload(xfer); 1202 if(xfer->send.payload != NULL){ 1203 free(xfer->send.payload, xfer->malloc); 1204 } 1205 if(xfer->recv.payload != NULL){ 1206 free(xfer->recv.payload, xfer->malloc); 1207 } 1208 free(xfer, xfer->malloc); 1209} 1210 1211void 1212fw_xfer_free( 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 free(xfer, xfer->malloc); 1220} 1221 1222void 1223fw_asy_callback_free(struct fw_xfer *xfer) 1224{ 1225#if 0 1226 printf("asyreq done flag=0x%02x resp=%d\n", 1227 xfer->flag, xfer->resp); 1228#endif 1229 fw_xfer_free(xfer); 1230} 1231 1232/* 1233 * To configure PHY. 1234 */ 1235static void 1236fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1237{ 1238 struct fw_xfer *xfer; 1239 struct fw_pkt *fp; 1240 1241 fc->status = FWBUSPHYCONF; 1242 1243 xfer = fw_xfer_alloc(M_FWXFER); 1244 if (xfer == NULL) 1245 return; 1246 xfer->fc = fc; 1247 xfer->hand = fw_asy_callback_free; 1248 1249 fp = &xfer->send.hdr; 1250 fp->mode.ld[1] = 0; 1251 if (root_node >= 0) 1252 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1253 if (gap_count >= 0) 1254 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1255 fp->mode.ld[2] = ~fp->mode.ld[1]; 1256/* XXX Dangerous, how to pass PHY packet to device driver */ 1257 fp->mode.common.tcode |= FWTCODE_PHY; 1258 1259 if (firewire_debug) 1260 device_printf(fc->bdev, "%s: root_node=%d gap_count=%d\n", 1261 __func__, root_node, gap_count); 1262 fw_asyreq(fc, -1, xfer); 1263} 1264 1265/* 1266 * Dump self ID. 1267 */ 1268static void 1269fw_print_sid(uint32_t sid) 1270{ 1271 union fw_self_id *s; 1272 s = (union fw_self_id *) &sid; 1273 if ( s->p0.sequel ) { 1274 if ( s->p1.sequence_num == FW_SELF_ID_PAGE0 ) { 1275 printf("node:%d p3:%d p4:%d p5:%d p6:%d p7:%d" 1276 "p8:%d p9:%d p10:%d\n", 1277 s->p1.phy_id, s->p1.port3, s->p1.port4, 1278 s->p1.port5, s->p1.port6, s->p1.port7, 1279 s->p1.port8, s->p1.port9, s->p1.port10); 1280 } else if (s->p2.sequence_num == FW_SELF_ID_PAGE1 ){ 1281 printf("node:%d p11:%d p12:%d p13:%d p14:%d p15:%d\n", 1282 s->p2.phy_id, s->p2.port11, s->p2.port12, 1283 s->p2.port13, s->p2.port14, s->p2.port15); 1284 } else { 1285 printf("node:%d Unknown Self ID Page number %d\n", 1286 s->p1.phy_id, s->p1.sequence_num); 1287 } 1288 } else { 1289 printf("node:%d link:%d gap:%d spd:%d con:%d pwr:%d" 1290 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1291 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1292 s->p0.phy_speed, s->p0.contender, 1293 s->p0.power_class, s->p0.port0, s->p0.port1, 1294 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1295 } 1296} 1297 1298/* 1299 * To receive self ID. 1300 */ 1301void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1302{ 1303 uint32_t *p; 1304 union fw_self_id *self_id; 1305 u_int i, j, node, c_port = 0, i_branch = 0; 1306 1307 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1308 fc->max_node = fc->nodeid & 0x3f; 1309 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1310 fc->status = FWBUSCYMELECT; 1311 fc->topology_map->crc_len = 2; 1312 fc->topology_map->generation ++; 1313 fc->topology_map->self_id_count = 0; 1314 fc->topology_map->node_count = 0; 1315 fc->speed_map->generation ++; 1316 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1317 self_id = &fc->topology_map->self_id[0]; 1318 for(i = 0; i < fc->sid_cnt; i ++){ 1319 if (sid[1] != ~sid[0]) { 1320 device_printf(fc->bdev, "%s: ERROR invalid self-id packet\n", 1321 __func__); 1322 sid += 2; 1323 continue; 1324 } 1325 *self_id = *((union fw_self_id *)sid); 1326 fc->topology_map->crc_len++; 1327 if(self_id->p0.sequel == 0){ 1328 fc->topology_map->node_count ++; 1329 c_port = 0; 1330 if (firewire_debug) 1331 fw_print_sid(sid[0]); 1332 node = self_id->p0.phy_id; 1333 if(fc->max_node < node){ 1334 fc->max_node = self_id->p0.phy_id; 1335 } 1336 /* XXX I'm not sure this is the right speed_map */ 1337 fc->speed_map->speed[node][node] 1338 = self_id->p0.phy_speed; 1339 for (j = 0; j < node; j ++) { 1340 fc->speed_map->speed[j][node] 1341 = fc->speed_map->speed[node][j] 1342 = min(fc->speed_map->speed[j][j], 1343 self_id->p0.phy_speed); 1344 } 1345 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1346 (self_id->p0.link_active && self_id->p0.contender)) { 1347 fc->irm = self_id->p0.phy_id; 1348 } 1349 if(self_id->p0.port0 >= 0x2){ 1350 c_port++; 1351 } 1352 if(self_id->p0.port1 >= 0x2){ 1353 c_port++; 1354 } 1355 if(self_id->p0.port2 >= 0x2){ 1356 c_port++; 1357 } 1358 } 1359 if(c_port > 2){ 1360 i_branch += (c_port - 2); 1361 } 1362 sid += 2; 1363 self_id++; 1364 fc->topology_map->self_id_count ++; 1365 } 1366 /* CRC */ 1367 fc->topology_map->crc = fw_crc16( 1368 (uint32_t *)&fc->topology_map->generation, 1369 fc->topology_map->crc_len * 4); 1370 fc->speed_map->crc = fw_crc16( 1371 (uint32_t *)&fc->speed_map->generation, 1372 fc->speed_map->crc_len * 4); 1373 /* byteswap and copy to CSR */ 1374 p = (uint32_t *)fc->topology_map; 1375 for (i = 0; i <= fc->topology_map->crc_len; i++) 1376 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1377 p = (uint32_t *)fc->speed_map; 1378 CSRARC(fc, SPED_MAP) = htonl(*p++); 1379 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1380 /* don't byte-swap uint8_t array */ 1381 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1382 1383 fc->max_hop = fc->max_node - i_branch; 1384 device_printf(fc->bdev, "%d nodes, maxhop <= %d %s irm(%d) %s\n", 1385 fc->max_node + 1, fc->max_hop, 1386 (fc->irm == -1) ? "Not IRM capable" : "cable IRM", 1387 fc->irm, 1388 (fc->irm == fc->nodeid) ? " (me) " : ""); 1389 1390 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1391 if (fc->irm == fc->nodeid) { 1392 fc->status = FWBUSMGRDONE; 1393 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1394 fw_bmr(fc); 1395 } else { 1396 fc->status = FWBUSMGRELECT; 1397 callout_reset(&fc->bmr_callout, hz/8, 1398 (void *)fw_try_bmr, (void *)fc); 1399 } 1400 } else 1401 fc->status = FWBUSMGRDONE; 1402 1403 callout_reset(&fc->busprobe_callout, hz/4, 1404 (void *)fw_bus_probe, (void *)fc); 1405} 1406 1407/* 1408 * To probe devices on the IEEE1394 bus. 1409 */ 1410static void 1411fw_bus_probe(struct firewire_comm *fc) 1412{ 1413 int s; 1414 struct fw_device *fwdev; 1415 1416 s = splfw(); 1417 fc->status = FWBUSEXPLORE; 1418 1419 /* Invalidate all devices, just after bus reset. */ 1420 if (firewire_debug) 1421 device_printf(fc->bdev, "%s:" 1422 "iterate and invalidate all nodes\n", 1423 __func__); 1424 STAILQ_FOREACH(fwdev, &fc->devices, link) 1425 if (fwdev->status != FWDEVINVAL) { 1426 fwdev->status = FWDEVINVAL; 1427 fwdev->rcnt = 0; 1428 if (firewire_debug) 1429 device_printf(fc->bdev, "%s:" 1430 "Invalidate Dev ID: %08x%08x\n", 1431 __func__, fwdev->eui.hi, fwdev->eui.lo); 1432 } else { 1433 if (firewire_debug) 1434 device_printf(fc->bdev, "%s:" 1435 "Dev ID: %08x%08x already invalid\n", 1436 __func__, fwdev->eui.hi, fwdev->eui.lo); 1437 } 1438 splx(s); 1439 1440 wakeup((void *)fc); 1441} 1442 1443static int 1444fw_explore_read_quads(struct fw_device *fwdev, int offset, 1445 uint32_t *quad, int length) 1446{ 1447 struct fw_xfer *xfer; 1448 uint32_t tmp; 1449 int i, error; 1450 1451 for (i = 0; i < length; i ++, offset += sizeof(uint32_t)) { 1452 xfer = fwmem_read_quad(fwdev, NULL, -1, 1453 0xffff, 0xf0000000 | offset, (void *)&tmp, 1454 fw_xferwake); 1455 if (xfer == NULL) 1456 return (-1); 1457 fw_xferwait(xfer); 1458 1459 if (xfer->resp == 0) 1460 quad[i] = ntohl(tmp); 1461 1462 error = xfer->resp; 1463 fw_xfer_free(xfer); 1464 if (error) 1465 return (error); 1466 } 1467 return (0); 1468} 1469 1470 1471static int 1472fw_explore_csrblock(struct fw_device *fwdev, int offset, int recur) 1473{ 1474 int err, i, off; 1475 struct csrdirectory *dir; 1476 struct csrreg *reg; 1477 1478 dir = (struct csrdirectory *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1479 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1480 (uint32_t *)dir, 1); 1481 if (err) 1482 return (-1); 1483 1484 offset += sizeof(uint32_t); 1485 reg = (struct csrreg *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1486 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1487 (uint32_t *)reg, dir->crc_len); 1488 if (err) 1489 return (-1); 1490 1491 /* XXX check CRC */ 1492 1493 off = CSRROMOFF + offset + sizeof(uint32_t) * (dir->crc_len - 1); 1494 if (fwdev->rommax < off) 1495 fwdev->rommax = off; 1496 1497 if (recur == 0) 1498 return (0); 1499 1500 for (i = 0; i < dir->crc_len; i ++, offset += sizeof(uint32_t)) { 1501 if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_D) 1502 recur = 1; 1503 else if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_L) 1504 recur = 0; 1505 else 1506 continue; 1507 1508 off = offset + reg[i].val * sizeof(uint32_t); 1509 if (off > CROMSIZE) { 1510 printf("%s: invalid offset %d\n", __FUNCTION__, off); 1511 return(-1); 1512 } 1513 err = fw_explore_csrblock(fwdev, off, recur); 1514 if (err) 1515 return (-1); 1516 } 1517 return (0); 1518} 1519 1520static int 1521fw_explore_node(struct fw_device *dfwdev) 1522{ 1523 struct firewire_comm *fc; 1524 struct fw_device *fwdev, *pfwdev, *tfwdev; 1525 uint32_t *csr; 1526 struct csrhdr *hdr; 1527 struct bus_info *binfo; 1528 int err, node; 1529 uint32_t speed_test = 0; 1530 1531 fc = dfwdev->fc; 1532 csr = dfwdev->csrrom; 1533 node = dfwdev->dst; 1534 1535 /* First quad */ 1536 err = fw_explore_read_quads(dfwdev, CSRROMOFF, &csr[0], 1); 1537 if (err) { 1538 device_printf(fc->bdev, "%s: node%d: explore_read_quads failure\n", 1539 __func__, node); 1540 dfwdev->status = FWDEVINVAL; 1541 return (-1); 1542 } 1543 hdr = (struct csrhdr *)&csr[0]; 1544 if (hdr->info_len != 4) { 1545 if (firewire_debug) 1546 device_printf(fc->bdev, "%s: node%d: wrong bus info len(%d)\n", 1547 __func__, node, hdr->info_len); 1548 dfwdev->status = FWDEVINVAL; 1549 return (-1); 1550 } 1551 1552 /* bus info */ 1553 err = fw_explore_read_quads(dfwdev, CSRROMOFF + 0x04, &csr[1], 4); 1554 if (err) { 1555 device_printf(fc->bdev, "%s: node%d: error reading 0x04\n", 1556 __func__, node); 1557 dfwdev->status = FWDEVINVAL; 1558 return (-1); 1559 } 1560 binfo = (struct bus_info *)&csr[1]; 1561 if (binfo->bus_name != CSR_BUS_NAME_IEEE1394) { 1562 device_printf(fc->bdev, "%s: node%d: invalid bus name 0x%08x\n", 1563 __func__, node, binfo->bus_name); 1564 dfwdev->status = FWDEVINVAL; 1565 return (-1); 1566 } 1567 1568 if (firewire_debug) 1569 device_printf(fc->bdev, "%s: node(%d) BUS INFO BLOCK:\n" 1570 "irmc(%d) cmc(%d) isc(%d) bmc(%d) pmc(%d) " 1571 "cyc_clk_acc(%d) max_rec(%d) max_rom(%d) " 1572 "generation(%d) link_spd(%d)\n", 1573 __func__, node, 1574 binfo->irmc, binfo->cmc, binfo->isc, 1575 binfo->bmc, binfo->pmc, binfo->cyc_clk_acc, 1576 binfo->max_rec, binfo->max_rom, 1577 binfo->generation, binfo->link_spd); 1578 1579 STAILQ_FOREACH(fwdev, &fc->devices, link) 1580 if (FW_EUI64_EQUAL(fwdev->eui, binfo->eui64)) 1581 break; 1582 if (fwdev == NULL) { 1583 /* new device */ 1584 fwdev = malloc(sizeof(struct fw_device), M_FW, 1585 M_NOWAIT | M_ZERO); 1586 if (fwdev == NULL) { 1587 device_printf(fc->bdev, "%s: node%d: no memory\n", 1588 __func__, node); 1589 return (-1); 1590 } 1591 fwdev->fc = fc; 1592 fwdev->eui = binfo->eui64; 1593 /* 1594 * Pre-1394a-2000 didn't have link_spd in 1595 * the Bus Info block, so try and use the 1596 * speed map value. 1597 * 1394a-2000 compliant devices only use 1598 * the Bus Info Block link spd value, so 1599 * ignore the speed map alltogether. SWB 1600 */ 1601 if ( binfo->link_spd == FWSPD_S100 /* 0 */) { 1602 device_printf(fc->bdev, "%s" 1603 "Pre 1394a-2000 detected\n", 1604 __func__); 1605 fwdev->speed = fc->speed_map->speed[fc->nodeid][node]; 1606 } else 1607 fwdev->speed = binfo->link_spd; 1608 /* 1609 * Test this speed with a read to the CSRROM. 1610 * If it fails, slow down the speed and retry. 1611 */ 1612 while (fwdev->speed > 0) { 1613 err = fw_explore_read_quads(fwdev, CSRROMOFF, 1614 &speed_test, 1); 1615 if (err) 1616 fwdev->speed--; 1617 else 1618 break; 1619 1620 } 1621 if (fwdev->speed != binfo->link_spd) 1622 device_printf(fc->bdev, "%s: fwdev->speed(%s)" 1623 " set lower than binfo->link_spd(%s)\n", 1624 __func__, 1625 linkspeed[fwdev->speed], 1626 linkspeed[binfo->link_spd]); 1627 /* inesrt into sorted fwdev list */ 1628 pfwdev = NULL; 1629 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1630 if (tfwdev->eui.hi > fwdev->eui.hi || 1631 (tfwdev->eui.hi == fwdev->eui.hi && 1632 tfwdev->eui.lo > fwdev->eui.lo)) 1633 break; 1634 pfwdev = tfwdev; 1635 } 1636 if (pfwdev == NULL) 1637 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1638 else 1639 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1640 1641 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1642 linkspeed[fwdev->speed], 1643 fwdev->eui.hi, fwdev->eui.lo); 1644 } 1645 fwdev->dst = node; 1646 fwdev->status = FWDEVINIT; 1647 1648 /* unchanged ? */ 1649 if (bcmp(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5) == 0) { 1650 if (firewire_debug) 1651 device_printf(fc->dev, "node%d: crom unchanged\n", node); 1652 return (0); 1653 } 1654 1655 bzero(&fwdev->csrrom[0], CROMSIZE); 1656 1657 /* copy first quad and bus info block */ 1658 bcopy(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5); 1659 fwdev->rommax = CSRROMOFF + sizeof(uint32_t) * 4; 1660 1661 err = fw_explore_csrblock(fwdev, 0x14, 1); /* root directory */ 1662 1663 if (err) { 1664 fwdev->status = FWDEVINVAL; 1665 fwdev->csrrom[0] = 0; 1666 } 1667 return (err); 1668 1669} 1670 1671/* 1672 * Find the self_id packet for a node, ignoring sequels. 1673 */ 1674static union fw_self_id * 1675fw_find_self_id(struct firewire_comm *fc, int node) 1676{ 1677 uint32_t i; 1678 union fw_self_id *s; 1679 1680 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1681 s = &fc->topology_map->self_id[i]; 1682 if (s->p0.sequel) 1683 continue; 1684 if (s->p0.phy_id == node) 1685 return s; 1686 } 1687 return 0; 1688} 1689 1690static void 1691fw_explore(struct firewire_comm *fc) 1692{ 1693 int node, err, s, i, todo, todo2, trys; 1694 char nodes[63]; 1695 struct fw_device dfwdev; 1696 union fw_self_id *fwsid; 1697 1698 todo = 0; 1699 /* setup dummy fwdev */ 1700 dfwdev.fc = fc; 1701 dfwdev.speed = 0; 1702 dfwdev.maxrec = 8; /* 512 */ 1703 dfwdev.status = FWDEVINIT; 1704 1705 for (node = 0; node <= fc->max_node; node ++) { 1706 /* We don't probe myself and linkdown nodes */ 1707 if (node == fc->nodeid) { 1708 if (firewire_debug) 1709 device_printf(fc->bdev, "%s:" 1710 "found myself node(%d) fc->nodeid(%d) fc->max_node(%d)\n", 1711 __func__, node, fc->nodeid, fc->max_node); 1712 continue; 1713 } else if (firewire_debug) { 1714 device_printf(fc->bdev, "%s:" 1715 "node(%d) fc->max_node(%d) found\n", 1716 __func__, node, fc->max_node); 1717 } 1718 fwsid = fw_find_self_id(fc, node); 1719 if (!fwsid || !fwsid->p0.link_active) { 1720 if (firewire_debug) 1721 device_printf(fc->bdev, "%s: node%d: link down\n", 1722 __func__, node); 1723 continue; 1724 } 1725 nodes[todo++] = node; 1726 } 1727 1728 s = splfw(); 1729 for (trys = 0; todo > 0 && trys < 3; trys ++) { 1730 todo2 = 0; 1731 for (i = 0; i < todo; i ++) { 1732 dfwdev.dst = nodes[i]; 1733 err = fw_explore_node(&dfwdev); 1734 if (err) 1735 nodes[todo2++] = nodes[i]; 1736 if (firewire_debug) 1737 device_printf(fc->bdev, "%s: node %d, err = %d\n", 1738 __func__, node, err); 1739 } 1740 todo = todo2; 1741 } 1742 splx(s); 1743} 1744 1745 1746static void 1747fw_bus_probe_thread(void *arg) 1748{ 1749 struct firewire_comm *fc; 1750 1751 fc = (struct firewire_comm *)arg; 1752 1753 mtx_lock(&fc->wait_lock); 1754 while (fc->status != FWBUSDETACH) { 1755 if (fc->status == FWBUSEXPLORE) { 1756 mtx_unlock(&fc->wait_lock); 1757 fw_explore(fc); 1758 fc->status = FWBUSEXPDONE; 1759 if (firewire_debug) 1760 printf("bus_explore done\n"); 1761 fw_attach_dev(fc); 1762 mtx_lock(&fc->wait_lock); 1763 } 1764 msleep((void *)fc, &fc->wait_lock, PWAIT|PCATCH, "-", 0); 1765 } 1766 mtx_unlock(&fc->wait_lock); 1767 kproc_exit(0); 1768} 1769 1770/* 1771 * To attach sub-devices layer onto IEEE1394 bus. 1772 */ 1773static void 1774fw_attach_dev(struct firewire_comm *fc) 1775{ 1776 struct fw_device *fwdev, *next; 1777 int i, err; 1778 device_t *devlistp; 1779 int devcnt; 1780 struct firewire_dev_comm *fdc; 1781 1782 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1783 next = STAILQ_NEXT(fwdev, link); 1784 if (fwdev->status == FWDEVINIT) { 1785 fwdev->status = FWDEVATTACHED; 1786 } else if (fwdev->status == FWDEVINVAL) { 1787 fwdev->rcnt ++; 1788 if (firewire_debug) 1789 device_printf(fc->bdev, "%s:" 1790 "fwdev->rcnt(%d), hold_count(%d)\n", 1791 __func__, fwdev->rcnt, hold_count); 1792 if (fwdev->rcnt > hold_count) { 1793 /* 1794 * Remove devices which have not been seen 1795 * for a while. 1796 */ 1797 device_printf(fc->bdev, "%s:" 1798 "Removing missing device ID:%08x%08x\n", 1799 __func__, fwdev->eui.hi, fwdev->eui.lo); 1800 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1801 link); 1802 free(fwdev, M_FW); 1803 } 1804 } 1805 } 1806 1807 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1808 if( err == 0 ) { 1809 for( i = 0 ; i < devcnt ; i++){ 1810 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1811 fdc = device_get_softc(devlistp[i]); 1812 if (fdc->post_explore != NULL) 1813 fdc->post_explore(fdc); 1814 } 1815 } 1816 free(devlistp, M_TEMP); 1817 } 1818 1819 return; 1820} 1821 1822/* 1823 * To allocate unique transaction label. 1824 */ 1825static int 1826fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1827{ 1828 u_int dst, new_tlabel; 1829 struct fw_xfer *txfer; 1830 int s; 1831 1832 dst = xfer->send.hdr.mode.hdr.dst & 0x3f; 1833 s = splfw(); 1834 mtx_lock(&fc->tlabel_lock); 1835 new_tlabel = (fc->last_tlabel[dst] + 1) & 0x3f; 1836 STAILQ_FOREACH(txfer, &fc->tlabels[new_tlabel], tlabel) 1837 if ((txfer->send.hdr.mode.hdr.dst & 0x3f) == dst) 1838 break; 1839 if(txfer == NULL) { 1840 fc->last_tlabel[dst] = new_tlabel; 1841 STAILQ_INSERT_TAIL(&fc->tlabels[new_tlabel], xfer, tlabel); 1842 mtx_unlock(&fc->tlabel_lock); 1843 splx(s); 1844 xfer->tl = new_tlabel; 1845 xfer->send.hdr.mode.hdr.tlrt = new_tlabel << 2; 1846 if (firewire_debug > 1) 1847 printf("fw_get_tlabel: dst=%d tl=%d\n", dst, new_tlabel); 1848 return (new_tlabel); 1849 } 1850 mtx_unlock(&fc->tlabel_lock); 1851 splx(s); 1852 1853 if (firewire_debug > 1) 1854 printf("fw_get_tlabel: no free tlabel\n"); 1855 return (-1); 1856} 1857 1858static void 1859fw_rcv_copy(struct fw_rcv_buf *rb) 1860{ 1861 struct fw_pkt *pkt; 1862 u_char *p; 1863 struct tcode_info *tinfo; 1864 u_int res, i, len, plen; 1865 1866 rb->xfer->recv.spd = rb->spd; 1867 1868 pkt = (struct fw_pkt *)rb->vec->iov_base; 1869 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1870 1871 /* Copy header */ 1872 p = (u_char *)&rb->xfer->recv.hdr; 1873 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1874 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1875 rb->vec->iov_len -= tinfo->hdr_len; 1876 1877 /* Copy payload */ 1878 p = (u_char *)rb->xfer->recv.payload; 1879 res = rb->xfer->recv.pay_len; 1880 1881 /* special handling for RRESQ */ 1882 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1883 p != NULL && res >= sizeof(uint32_t)) { 1884 *(uint32_t *)p = pkt->mode.rresq.data; 1885 rb->xfer->recv.pay_len = sizeof(uint32_t); 1886 return; 1887 } 1888 1889 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1890 return; 1891 1892 plen = pkt->mode.rresb.len; 1893 1894 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1895 len = MIN(rb->vec->iov_len, plen); 1896 if (res < len) { 1897 device_printf(rb->fc->bdev, "%s:" 1898 " rcv buffer(%d) is %d bytes short.\n", 1899 __func__, rb->xfer->recv.pay_len, len - res); 1900 len = res; 1901 } 1902 bcopy(rb->vec->iov_base, p, len); 1903 p += len; 1904 res -= len; 1905 plen -= len; 1906 if (res == 0 || plen == 0) 1907 break; 1908 } 1909 rb->xfer->recv.pay_len -= res; 1910 1911} 1912 1913/* 1914 * Generic packet receiving process. 1915 */ 1916void 1917fw_rcv(struct fw_rcv_buf *rb) 1918{ 1919 struct fw_pkt *fp, *resfp; 1920 struct fw_bind *bind; 1921 int tcode; 1922 int i, len, oldstate; 1923#if 0 1924 { 1925 uint32_t *qld; 1926 int i; 1927 qld = (uint32_t *)buf; 1928 printf("spd %d len:%d\n", spd, len); 1929 for( i = 0 ; i <= len && i < 32; i+= 4){ 1930 printf("0x%08x ", ntohl(qld[i/4])); 1931 if((i % 16) == 15) printf("\n"); 1932 } 1933 if((i % 16) != 15) printf("\n"); 1934 } 1935#endif 1936 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1937 tcode = fp->mode.common.tcode; 1938 switch (tcode) { 1939 case FWTCODE_WRES: 1940 case FWTCODE_RRESQ: 1941 case FWTCODE_RRESB: 1942 case FWTCODE_LRES: 1943 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1944 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tcode); 1945 if(rb->xfer == NULL) { 1946 device_printf(rb->fc->bdev, "%s: " 1947 "unknown response " 1948 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1949 __func__, 1950 tcode_str[tcode], tcode, 1951 fp->mode.hdr.src, 1952 fp->mode.hdr.tlrt >> 2, 1953 fp->mode.hdr.tlrt & 3, 1954 fp->mode.rresq.data); 1955#if 0 1956 printf("try ad-hoc work around!!\n"); 1957 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1958 (fp->mode.hdr.tlrt >> 2)^3); 1959 if (rb->xfer == NULL) { 1960 printf("no use...\n"); 1961 return; 1962 } 1963#else 1964 return; 1965#endif 1966 } 1967 fw_rcv_copy(rb); 1968 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1969 rb->xfer->resp = EIO; 1970 else 1971 rb->xfer->resp = 0; 1972 /* make sure the packet is drained in AT queue */ 1973 oldstate = rb->xfer->flag; 1974 rb->xfer->flag = FWXF_RCVD; 1975 switch (oldstate) { 1976 case FWXF_SENT: 1977 fw_xfer_done(rb->xfer); 1978 break; 1979 case FWXF_START: 1980#if 0 1981 if (firewire_debug) 1982 printf("not sent yet tl=%x\n", rb->xfer->tl); 1983#endif 1984 break; 1985 default: 1986 device_printf(rb->fc->bdev, "%s: " 1987 "unexpected flag 0x%02x\n", __func__, rb->xfer->flag); 1988 } 1989 return; 1990 case FWTCODE_WREQQ: 1991 case FWTCODE_WREQB: 1992 case FWTCODE_RREQQ: 1993 case FWTCODE_RREQB: 1994 case FWTCODE_LREQ: 1995 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1996 fp->mode.rreqq.dest_lo); 1997 if(bind == NULL){ 1998 device_printf(rb->fc->bdev, "%s: " 1999 "Unknown service addr 0x%04x:0x%08x %s(%x)" 2000#if defined(__DragonFly__) || __FreeBSD_version < 500000 2001 " src=0x%x data=%lx\n", 2002#else 2003 " src=0x%x data=%x\n", 2004#endif 2005 __func__, 2006 fp->mode.wreqq.dest_hi, 2007 fp->mode.wreqq.dest_lo, 2008 tcode_str[tcode], tcode, 2009 fp->mode.hdr.src, 2010 ntohl(fp->mode.wreqq.data)); 2011 2012 if (rb->fc->status == FWBUSINIT) { 2013 device_printf(rb->fc->bdev, "%s: cannot respond(bus reset)!\n", 2014 __func__); 2015 return; 2016 } 2017 rb->xfer = fw_xfer_alloc(M_FWXFER); 2018 if(rb->xfer == NULL){ 2019 return; 2020 } 2021 rb->xfer->send.spd = rb->spd; 2022 rb->xfer->send.pay_len = 0; 2023 resfp = &rb->xfer->send.hdr; 2024 switch (tcode) { 2025 case FWTCODE_WREQQ: 2026 case FWTCODE_WREQB: 2027 resfp->mode.hdr.tcode = FWTCODE_WRES; 2028 break; 2029 case FWTCODE_RREQQ: 2030 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 2031 break; 2032 case FWTCODE_RREQB: 2033 resfp->mode.hdr.tcode = FWTCODE_RRESB; 2034 break; 2035 case FWTCODE_LREQ: 2036 resfp->mode.hdr.tcode = FWTCODE_LRES; 2037 break; 2038 } 2039 resfp->mode.hdr.dst = fp->mode.hdr.src; 2040 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 2041 resfp->mode.hdr.pri = fp->mode.hdr.pri; 2042 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 2043 resfp->mode.rresb.extcode = 0; 2044 resfp->mode.rresb.len = 0; 2045/* 2046 rb->xfer->hand = fw_xferwake; 2047*/ 2048 rb->xfer->hand = fw_xfer_free; 2049 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 2050 fw_xfer_free(rb->xfer); 2051 return; 2052 } 2053 return; 2054 } 2055 len = 0; 2056 for (i = 0; i < rb->nvec; i ++) 2057 len += rb->vec[i].iov_len; 2058 rb->xfer = STAILQ_FIRST(&bind->xferlist); 2059 if (rb->xfer == NULL) { 2060 device_printf(rb->fc->bdev, "%s: " 2061 "Discard a packet for this bind.\n", 2062 __func__); 2063 return; 2064 } 2065 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 2066 fw_rcv_copy(rb); 2067 rb->xfer->hand(rb->xfer); 2068 return; 2069#if 0 /* shouldn't happen ?? or for GASP */ 2070 case FWTCODE_STREAM: 2071 { 2072 struct fw_xferq *xferq; 2073 2074 xferq = rb->fc->ir[sub]; 2075#if 0 2076 printf("stream rcv dma %d len %d off %d spd %d\n", 2077 sub, len, off, spd); 2078#endif 2079 if(xferq->queued >= xferq->maxq) { 2080 printf("receive queue is full\n"); 2081 return; 2082 } 2083 /* XXX get xfer from xfer queue, we don't need copy for 2084 per packet mode */ 2085 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 2086 vec[0].iov_len); 2087 if (rb->xfer == NULL) 2088 return; 2089 fw_rcv_copy(rb) 2090 s = splfw(); 2091 xferq->queued++; 2092 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 2093 splx(s); 2094 sc = device_get_softc(rb->fc->bdev); 2095#if defined(__DragonFly__) || __FreeBSD_version < 500000 2096 if (&xferq->rsel.si_pid != 0) 2097#else 2098 if (SEL_WAITING(&xferq->rsel)) 2099#endif 2100 selwakeuppri(&xferq->rsel, FWPRI); 2101 if (xferq->flag & FWXFERQ_WAKEUP) { 2102 xferq->flag &= ~FWXFERQ_WAKEUP; 2103 wakeup((caddr_t)xferq); 2104 } 2105 if (xferq->flag & FWXFERQ_HANDLER) { 2106 xferq->hand(xferq); 2107 } 2108 return; 2109 break; 2110 } 2111#endif 2112 default: 2113 device_printf(rb->fc->bdev,"%s: unknown tcode %d\n", 2114 __func__, tcode); 2115 break; 2116 } 2117} 2118 2119/* 2120 * Post process for Bus Manager election process. 2121 */ 2122static void 2123fw_try_bmr_callback(struct fw_xfer *xfer) 2124{ 2125 struct firewire_comm *fc; 2126 int bmr; 2127 2128 if (xfer == NULL) 2129 return; 2130 fc = xfer->fc; 2131 if (xfer->resp != 0) 2132 goto error; 2133 if (xfer->recv.payload == NULL) 2134 goto error; 2135 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2136 goto error; 2137 2138 bmr = ntohl(xfer->recv.payload[0]); 2139 if (bmr == 0x3f) 2140 bmr = fc->nodeid; 2141 2142 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2143 fw_xfer_free_buf(xfer); 2144 fw_bmr(fc); 2145 return; 2146 2147error: 2148 device_printf(fc->bdev, "bus manager election failed\n"); 2149 fw_xfer_free_buf(xfer); 2150} 2151 2152 2153/* 2154 * To candidate Bus Manager election process. 2155 */ 2156static void 2157fw_try_bmr(void *arg) 2158{ 2159 struct fw_xfer *xfer; 2160 struct firewire_comm *fc = (struct firewire_comm *)arg; 2161 struct fw_pkt *fp; 2162 int err = 0; 2163 2164 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2165 if(xfer == NULL){ 2166 return; 2167 } 2168 xfer->send.spd = 0; 2169 fc->status = FWBUSMGRELECT; 2170 2171 fp = &xfer->send.hdr; 2172 fp->mode.lreq.dest_hi = 0xffff; 2173 fp->mode.lreq.tlrt = 0; 2174 fp->mode.lreq.tcode = FWTCODE_LREQ; 2175 fp->mode.lreq.pri = 0; 2176 fp->mode.lreq.src = 0; 2177 fp->mode.lreq.len = 8; 2178 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2179 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2180 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2181 xfer->send.payload[0] = htonl(0x3f); 2182 xfer->send.payload[1] = htonl(fc->nodeid); 2183 xfer->hand = fw_try_bmr_callback; 2184 2185 err = fw_asyreq(fc, -1, xfer); 2186 if(err){ 2187 fw_xfer_free_buf(xfer); 2188 return; 2189 } 2190 return; 2191} 2192 2193#ifdef FW_VMACCESS 2194/* 2195 * Software implementation for physical memory block access. 2196 * XXX:Too slow, usef for debug purpose only. 2197 */ 2198static void 2199fw_vmaccess(struct fw_xfer *xfer){ 2200 struct fw_pkt *rfp, *sfp = NULL; 2201 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2202 2203 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2204 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2205 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2206 if(xfer->resp != 0){ 2207 fw_xfer_free( xfer); 2208 return; 2209 } 2210 if(xfer->recv.buf == NULL){ 2211 fw_xfer_free( xfer); 2212 return; 2213 } 2214 rfp = (struct fw_pkt *)xfer->recv.buf; 2215 switch(rfp->mode.hdr.tcode){ 2216 /* XXX need fix for 64bit arch */ 2217 case FWTCODE_WREQB: 2218 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2219 xfer->send.len = 12; 2220 sfp = (struct fw_pkt *)xfer->send.buf; 2221 bcopy(rfp->mode.wreqb.payload, 2222 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2223 sfp->mode.wres.tcode = FWTCODE_WRES; 2224 sfp->mode.wres.rtcode = 0; 2225 break; 2226 case FWTCODE_WREQQ: 2227 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2228 xfer->send.len = 12; 2229 sfp->mode.wres.tcode = FWTCODE_WRES; 2230 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2231 sfp->mode.wres.rtcode = 0; 2232 break; 2233 case FWTCODE_RREQB: 2234 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2235 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2236 sfp = (struct fw_pkt *)xfer->send.buf; 2237 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2238 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2239 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2240 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2241 sfp->mode.rresb.rtcode = 0; 2242 sfp->mode.rresb.extcode = 0; 2243 break; 2244 case FWTCODE_RREQQ: 2245 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2246 xfer->send.len = 16; 2247 sfp = (struct fw_pkt *)xfer->send.buf; 2248 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2249 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2250 sfp->mode.rresb.rtcode = 0; 2251 break; 2252 default: 2253 fw_xfer_free( xfer); 2254 return; 2255 } 2256 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2257 xfer->dst = ntohs(rfp->mode.hdr.src); 2258 xfer->hand = fw_xfer_free; 2259 2260 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2261 sfp->mode.hdr.pri = 0; 2262 2263 fw_asyreq(xfer->fc, -1, xfer); 2264/**/ 2265 return; 2266} 2267#endif 2268 2269/* 2270 * CRC16 check-sum for IEEE1394 register blocks. 2271 */ 2272uint16_t 2273fw_crc16(uint32_t *ptr, uint32_t len){ 2274 uint32_t i, sum, crc = 0; 2275 int shift; 2276 len = (len + 3) & ~3; 2277 for(i = 0 ; i < len ; i+= 4){ 2278 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2279 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2280 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2281 } 2282 crc &= 0xffff; 2283 } 2284 return((uint16_t) crc); 2285} 2286 2287/* 2288 * Find the root node, if it is not 2289 * Cycle Master Capable, then we should 2290 * override this and become the Cycle 2291 * Master 2292 */ 2293static int 2294fw_bmr(struct firewire_comm *fc) 2295{ 2296 struct fw_device fwdev; 2297 union fw_self_id *self_id; 2298 int cmstr; 2299 uint32_t quad; 2300 2301 /* Check to see if the current root node is cycle master capable */ 2302 self_id = fw_find_self_id(fc, fc->max_node); 2303 if (fc->max_node > 0) { 2304 /* XXX check cmc bit of businfo block rather than contender */ 2305 if (self_id->p0.link_active && self_id->p0.contender) 2306 cmstr = fc->max_node; 2307 else { 2308 device_printf(fc->bdev, 2309 "root node is not cycle master capable\n"); 2310 /* XXX shall we be the cycle master? */ 2311 cmstr = fc->nodeid; 2312 /* XXX need bus reset */ 2313 } 2314 } else 2315 cmstr = -1; 2316 2317 device_printf(fc->bdev, "bus manager %d %s\n", 2318 CSRARC(fc, BUS_MGR_ID), 2319 (CSRARC(fc, BUS_MGR_ID) != fc->nodeid) ? "(me)" : ""); 2320 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2321 /* We are not the bus manager */ 2322 return(0); 2323 } 2324 2325 /* Optimize gapcount */ 2326 if(fc->max_hop <= MAX_GAPHOP ) 2327 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2328 /* If we are the cycle master, nothing to do */ 2329 if (cmstr == fc->nodeid || cmstr == -1) 2330 return 0; 2331 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2332 bzero(&fwdev, sizeof(fwdev)); 2333 fwdev.fc = fc; 2334 fwdev.dst = cmstr; 2335 fwdev.speed = 0; 2336 fwdev.maxrec = 8; /* 512 */ 2337 fwdev.status = FWDEVINIT; 2338 /* Set cmstr bit on the cycle master */ 2339 quad = htonl(1 << 8); 2340 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2341 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2342 2343 return 0; 2344} 2345 2346int 2347fw_open_isodma(struct firewire_comm *fc, int tx) 2348{ 2349 struct fw_xferq **xferqa; 2350 struct fw_xferq *xferq; 2351 int i; 2352 2353 if (tx) 2354 xferqa = &fc->it[0]; 2355 else 2356 xferqa = &fc->ir[0]; 2357 2358 FW_GLOCK(fc); 2359 for (i = 0; i < fc->nisodma; i ++) { 2360 xferq = xferqa[i]; 2361 if ((xferq->flag & FWXFERQ_OPEN) == 0) { 2362 xferq->flag |= FWXFERQ_OPEN; 2363 break; 2364 } 2365 } 2366 if (i == fc->nisodma) { 2367 printf("no free dma channel (tx=%d)\n", tx); 2368 i = -1; 2369 } 2370 FW_GUNLOCK(fc); 2371 return (i); 2372} 2373 2374static int 2375fw_modevent(module_t mode, int type, void *data) 2376{ 2377 int err = 0; 2378#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2379 static eventhandler_tag fwdev_ehtag = NULL; 2380#endif 2381 2382 switch (type) { 2383 case MOD_LOAD: 2384#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2385 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2386 fwdev_clone, 0, 1000); 2387#endif 2388 break; 2389 case MOD_UNLOAD: 2390#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2391 if (fwdev_ehtag != NULL) 2392 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2393#endif 2394 break; 2395 case MOD_SHUTDOWN: 2396 break; 2397 default: 2398 return (EOPNOTSUPP); 2399 } 2400 return (err); 2401} 2402 2403 2404#ifdef __DragonFly__ 2405DECLARE_DUMMY_MODULE(firewire); 2406#endif 2407DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2408MODULE_VERSION(firewire, 1); 2409