firewire.c revision 188722
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 188722 2009-02-17 17:46:43Z 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 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1274 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1275 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1276 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1277 s->p0.power_class, s->p0.port0, s->p0.port1, 1278 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1279} 1280 1281/* 1282 * To receive self ID. 1283 */ 1284void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1285{ 1286 uint32_t *p; 1287 union fw_self_id *self_id; 1288 u_int i, j, node, c_port = 0, i_branch = 0; 1289 1290 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1291 fc->max_node = fc->nodeid & 0x3f; 1292 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1293 fc->status = FWBUSCYMELECT; 1294 fc->topology_map->crc_len = 2; 1295 fc->topology_map->generation ++; 1296 fc->topology_map->self_id_count = 0; 1297 fc->topology_map->node_count = 0; 1298 fc->speed_map->generation ++; 1299 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1300 self_id = &fc->topology_map->self_id[0]; 1301 for(i = 0; i < fc->sid_cnt; i ++){ 1302 if (sid[1] != ~sid[0]) { 1303 device_printf(fc->bdev, "%s: ERROR invalid self-id packet\n", 1304 __func__); 1305 sid += 2; 1306 continue; 1307 } 1308 *self_id = *((union fw_self_id *)sid); 1309 fc->topology_map->crc_len++; 1310 if(self_id->p0.sequel == 0){ 1311 fc->topology_map->node_count ++; 1312 c_port = 0; 1313 if (firewire_debug) 1314 fw_print_sid(sid[0]); 1315 node = self_id->p0.phy_id; 1316 if(fc->max_node < node){ 1317 fc->max_node = self_id->p0.phy_id; 1318 } 1319 /* XXX I'm not sure this is the right speed_map */ 1320 fc->speed_map->speed[node][node] 1321 = self_id->p0.phy_speed; 1322 for (j = 0; j < node; j ++) { 1323 fc->speed_map->speed[j][node] 1324 = fc->speed_map->speed[node][j] 1325 = min(fc->speed_map->speed[j][j], 1326 self_id->p0.phy_speed); 1327 } 1328 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1329 (self_id->p0.link_active && self_id->p0.contender)) { 1330 fc->irm = self_id->p0.phy_id; 1331 } 1332 if(self_id->p0.port0 >= 0x2){ 1333 c_port++; 1334 } 1335 if(self_id->p0.port1 >= 0x2){ 1336 c_port++; 1337 } 1338 if(self_id->p0.port2 >= 0x2){ 1339 c_port++; 1340 } 1341 } 1342 if(c_port > 2){ 1343 i_branch += (c_port - 2); 1344 } 1345 sid += 2; 1346 self_id++; 1347 fc->topology_map->self_id_count ++; 1348 } 1349 /* CRC */ 1350 fc->topology_map->crc = fw_crc16( 1351 (uint32_t *)&fc->topology_map->generation, 1352 fc->topology_map->crc_len * 4); 1353 fc->speed_map->crc = fw_crc16( 1354 (uint32_t *)&fc->speed_map->generation, 1355 fc->speed_map->crc_len * 4); 1356 /* byteswap and copy to CSR */ 1357 p = (uint32_t *)fc->topology_map; 1358 for (i = 0; i <= fc->topology_map->crc_len; i++) 1359 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1360 p = (uint32_t *)fc->speed_map; 1361 CSRARC(fc, SPED_MAP) = htonl(*p++); 1362 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1363 /* don't byte-swap uint8_t array */ 1364 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1365 1366 fc->max_hop = fc->max_node - i_branch; 1367 device_printf(fc->bdev, "%d nodes, maxhop <= %d %s irm(%d) %s\n", 1368 fc->max_node + 1, fc->max_hop, 1369 (fc->irm == -1) ? "Not IRM capable" : "cable IRM", 1370 fc->irm, 1371 (fc->irm == fc->nodeid) ? " (me) " : ""); 1372 1373 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1374 if (fc->irm == fc->nodeid) { 1375 fc->status = FWBUSMGRDONE; 1376 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1377 fw_bmr(fc); 1378 } else { 1379 fc->status = FWBUSMGRELECT; 1380 callout_reset(&fc->bmr_callout, hz/8, 1381 (void *)fw_try_bmr, (void *)fc); 1382 } 1383 } else 1384 fc->status = FWBUSMGRDONE; 1385 1386 callout_reset(&fc->busprobe_callout, hz/4, 1387 (void *)fw_bus_probe, (void *)fc); 1388} 1389 1390/* 1391 * To probe devices on the IEEE1394 bus. 1392 */ 1393static void 1394fw_bus_probe(struct firewire_comm *fc) 1395{ 1396 int s; 1397 struct fw_device *fwdev; 1398 1399 s = splfw(); 1400 fc->status = FWBUSEXPLORE; 1401 1402 /* Invalidate all devices, just after bus reset. */ 1403 if (firewire_debug) 1404 device_printf(fc->bdev, "%s:" 1405 "iterate and invalidate all nodes\n", 1406 __func__); 1407 STAILQ_FOREACH(fwdev, &fc->devices, link) 1408 if (fwdev->status != FWDEVINVAL) { 1409 fwdev->status = FWDEVINVAL; 1410 fwdev->rcnt = 0; 1411 if (firewire_debug) 1412 device_printf(fc->bdev, "%s:" 1413 "Invalidate Dev ID: %08x%08x\n", 1414 __func__, fwdev->eui.hi, fwdev->eui.lo); 1415 } else { 1416 if (firewire_debug) 1417 device_printf(fc->bdev, "%s:" 1418 "Dev ID: %08x%08x already invalid\n", 1419 __func__, fwdev->eui.hi, fwdev->eui.lo); 1420 } 1421 splx(s); 1422 1423 wakeup((void *)fc); 1424} 1425 1426static int 1427fw_explore_read_quads(struct fw_device *fwdev, int offset, 1428 uint32_t *quad, int length) 1429{ 1430 struct fw_xfer *xfer; 1431 uint32_t tmp; 1432 int i, error; 1433 1434 for (i = 0; i < length; i ++, offset += sizeof(uint32_t)) { 1435 xfer = fwmem_read_quad(fwdev, NULL, -1, 1436 0xffff, 0xf0000000 | offset, (void *)&tmp, 1437 fw_xferwake); 1438 if (xfer == NULL) 1439 return (-1); 1440 fw_xferwait(xfer); 1441 1442 if (xfer->resp == 0) 1443 quad[i] = ntohl(tmp); 1444 1445 error = xfer->resp; 1446 fw_xfer_free(xfer); 1447 if (error) 1448 return (error); 1449 } 1450 return (0); 1451} 1452 1453 1454static int 1455fw_explore_csrblock(struct fw_device *fwdev, int offset, int recur) 1456{ 1457 int err, i, off; 1458 struct csrdirectory *dir; 1459 struct csrreg *reg; 1460 1461 dir = (struct csrdirectory *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1462 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1463 (uint32_t *)dir, 1); 1464 if (err) 1465 return (-1); 1466 1467 offset += sizeof(uint32_t); 1468 reg = (struct csrreg *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1469 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1470 (uint32_t *)reg, dir->crc_len); 1471 if (err) 1472 return (-1); 1473 1474 /* XXX check CRC */ 1475 1476 off = CSRROMOFF + offset + sizeof(uint32_t) * (dir->crc_len - 1); 1477 if (fwdev->rommax < off) 1478 fwdev->rommax = off; 1479 1480 if (recur == 0) 1481 return (0); 1482 1483 for (i = 0; i < dir->crc_len; i ++, offset += sizeof(uint32_t)) { 1484 if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_D) 1485 recur = 1; 1486 else if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_L) 1487 recur = 0; 1488 else 1489 continue; 1490 1491 off = offset + reg[i].val * sizeof(uint32_t); 1492 if (off > CROMSIZE) { 1493 printf("%s: invalid offset %d\n", __FUNCTION__, off); 1494 return(-1); 1495 } 1496 err = fw_explore_csrblock(fwdev, off, recur); 1497 if (err) 1498 return (-1); 1499 } 1500 return (0); 1501} 1502 1503static int 1504fw_explore_node(struct fw_device *dfwdev) 1505{ 1506 struct firewire_comm *fc; 1507 struct fw_device *fwdev, *pfwdev, *tfwdev; 1508 uint32_t *csr; 1509 struct csrhdr *hdr; 1510 struct bus_info *binfo; 1511 int err, node; 1512 uint32_t speed_test = 0; 1513 1514 fc = dfwdev->fc; 1515 csr = dfwdev->csrrom; 1516 node = dfwdev->dst; 1517 1518 /* First quad */ 1519 err = fw_explore_read_quads(dfwdev, CSRROMOFF, &csr[0], 1); 1520 if (err) { 1521 device_printf(fc->bdev, "%s: node%d: explore_read_quads failure\n", 1522 __func__, node); 1523 dfwdev->status = FWDEVINVAL; 1524 return (-1); 1525 } 1526 hdr = (struct csrhdr *)&csr[0]; 1527 if (hdr->info_len != 4) { 1528 if (firewire_debug) 1529 device_printf(fc->bdev, "%s: node%d: wrong bus info len(%d)\n", 1530 __func__, node, hdr->info_len); 1531 dfwdev->status = FWDEVINVAL; 1532 return (-1); 1533 } 1534 1535 /* bus info */ 1536 err = fw_explore_read_quads(dfwdev, CSRROMOFF + 0x04, &csr[1], 4); 1537 if (err) { 1538 device_printf(fc->bdev, "%s: node%d: error reading 0x04\n", 1539 __func__, node); 1540 dfwdev->status = FWDEVINVAL; 1541 return (-1); 1542 } 1543 binfo = (struct bus_info *)&csr[1]; 1544 if (binfo->bus_name != CSR_BUS_NAME_IEEE1394) { 1545 device_printf(fc->bdev, "%s: node%d: invalid bus name 0x%08x\n", 1546 __func__, node, binfo->bus_name); 1547 dfwdev->status = FWDEVINVAL; 1548 return (-1); 1549 } 1550 1551 if (firewire_debug) 1552 device_printf(fc->bdev, "%s: node(%d) BUS INFO BLOCK:\n" 1553 "irmc(%d) cmc(%d) isc(%d) bmc(%d) pmc(%d) " 1554 "cyc_clk_acc(%d) max_rec(%d) max_rom(%d) " 1555 "generation(%d) link_spd(%d)\n", 1556 __func__, node, 1557 binfo->irmc, binfo->cmc, binfo->isc, 1558 binfo->bmc, binfo->pmc, binfo->cyc_clk_acc, 1559 binfo->max_rec, binfo->max_rom, 1560 binfo->generation, binfo->link_spd); 1561 1562 STAILQ_FOREACH(fwdev, &fc->devices, link) 1563 if (FW_EUI64_EQUAL(fwdev->eui, binfo->eui64)) 1564 break; 1565 if (fwdev == NULL) { 1566 /* new device */ 1567 fwdev = malloc(sizeof(struct fw_device), M_FW, 1568 M_NOWAIT | M_ZERO); 1569 if (fwdev == NULL) { 1570 device_printf(fc->bdev, "%s: node%d: no memory\n", 1571 __func__, node); 1572 return (-1); 1573 } 1574 fwdev->fc = fc; 1575 fwdev->eui = binfo->eui64; 1576 /* 1577 * Pre-1394a-2000 didn't have link_spd in 1578 * the Bus Info block, so try and use the 1579 * speed map value. 1580 * 1394a-2000 compliant devices only use 1581 * the Bus Info Block link spd value, so 1582 * ignore the speed map alltogether. SWB 1583 */ 1584 if ( binfo->link_spd == FWSPD_S100 /* 0 */) { 1585 device_printf(fc->bdev, "%s" 1586 "Pre 1394a-2000 detected\n", 1587 __func__); 1588 fwdev->speed = fc->speed_map->speed[fc->nodeid][node]; 1589 } else 1590 fwdev->speed = binfo->link_spd; 1591 /* 1592 * Test this speed with a read to the CSRROM. 1593 * If it fails, slow down the speed and retry. 1594 */ 1595 while (fwdev->speed > 0) { 1596 err = fw_explore_read_quads(fwdev, CSRROMOFF, 1597 &speed_test, 1); 1598 if (err) 1599 fwdev->speed--; 1600 else 1601 break; 1602 1603 } 1604 if (fwdev->speed != binfo->link_spd) 1605 device_printf(fc->bdev, "%s: fwdev->speed(%s)" 1606 " set lower than binfo->link_spd(%s)\n", 1607 __func__, 1608 linkspeed[fwdev->speed], 1609 linkspeed[binfo->link_spd]); 1610 /* inesrt into sorted fwdev list */ 1611 pfwdev = NULL; 1612 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1613 if (tfwdev->eui.hi > fwdev->eui.hi || 1614 (tfwdev->eui.hi == fwdev->eui.hi && 1615 tfwdev->eui.lo > fwdev->eui.lo)) 1616 break; 1617 pfwdev = tfwdev; 1618 } 1619 if (pfwdev == NULL) 1620 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1621 else 1622 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1623 1624 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1625 linkspeed[fwdev->speed], 1626 fwdev->eui.hi, fwdev->eui.lo); 1627 } 1628 fwdev->dst = node; 1629 fwdev->status = FWDEVINIT; 1630 1631 /* unchanged ? */ 1632 if (bcmp(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5) == 0) { 1633 if (firewire_debug) 1634 device_printf(fc->dev, "node%d: crom unchanged\n", node); 1635 return (0); 1636 } 1637 1638 bzero(&fwdev->csrrom[0], CROMSIZE); 1639 1640 /* copy first quad and bus info block */ 1641 bcopy(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5); 1642 fwdev->rommax = CSRROMOFF + sizeof(uint32_t) * 4; 1643 1644 err = fw_explore_csrblock(fwdev, 0x14, 1); /* root directory */ 1645 1646 if (err) { 1647 fwdev->status = FWDEVINVAL; 1648 fwdev->csrrom[0] = 0; 1649 } 1650 return (err); 1651 1652} 1653 1654/* 1655 * Find the self_id packet for a node, ignoring sequels. 1656 */ 1657static union fw_self_id * 1658fw_find_self_id(struct firewire_comm *fc, int node) 1659{ 1660 uint32_t i; 1661 union fw_self_id *s; 1662 1663 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1664 s = &fc->topology_map->self_id[i]; 1665 if (s->p0.sequel) 1666 continue; 1667 if (s->p0.phy_id == node) 1668 return s; 1669 } 1670 return 0; 1671} 1672 1673static void 1674fw_explore(struct firewire_comm *fc) 1675{ 1676 int node, err, s, i, todo, todo2, trys; 1677 char nodes[63]; 1678 struct fw_device dfwdev; 1679 union fw_self_id *fwsid; 1680 1681 todo = 0; 1682 /* setup dummy fwdev */ 1683 dfwdev.fc = fc; 1684 dfwdev.speed = 0; 1685 dfwdev.maxrec = 8; /* 512 */ 1686 dfwdev.status = FWDEVINIT; 1687 1688 for (node = 0; node <= fc->max_node; node ++) { 1689 /* We don't probe myself and linkdown nodes */ 1690 if (node == fc->nodeid) { 1691 if (firewire_debug) 1692 device_printf(fc->bdev, "%s:" 1693 "found myself node(%d) fc->nodeid(%d) fc->max_node(%d)\n", 1694 __func__, node, fc->nodeid, fc->max_node); 1695 continue; 1696 } else if (firewire_debug) { 1697 device_printf(fc->bdev, "%s:" 1698 "node(%d) fc->max_node(%d) found\n", 1699 __func__, node, fc->max_node); 1700 } 1701 fwsid = fw_find_self_id(fc, node); 1702 if (!fwsid || !fwsid->p0.link_active) { 1703 if (firewire_debug) 1704 device_printf(fc->bdev, "%s: node%d: link down\n", 1705 __func__, node); 1706 continue; 1707 } 1708 nodes[todo++] = node; 1709 } 1710 1711 s = splfw(); 1712 for (trys = 0; todo > 0 && trys < 3; trys ++) { 1713 todo2 = 0; 1714 for (i = 0; i < todo; i ++) { 1715 dfwdev.dst = nodes[i]; 1716 err = fw_explore_node(&dfwdev); 1717 if (err) 1718 nodes[todo2++] = nodes[i]; 1719 if (firewire_debug) 1720 device_printf(fc->bdev, "%s: node %d, err = %d\n", 1721 __func__, node, err); 1722 } 1723 todo = todo2; 1724 } 1725 splx(s); 1726} 1727 1728 1729static void 1730fw_bus_probe_thread(void *arg) 1731{ 1732 struct firewire_comm *fc; 1733 1734 fc = (struct firewire_comm *)arg; 1735 1736 mtx_lock(&fc->wait_lock); 1737 while (fc->status != FWBUSDETACH) { 1738 if (fc->status == FWBUSEXPLORE) { 1739 mtx_unlock(&fc->wait_lock); 1740 fw_explore(fc); 1741 fc->status = FWBUSEXPDONE; 1742 if (firewire_debug) 1743 printf("bus_explore done\n"); 1744 fw_attach_dev(fc); 1745 mtx_lock(&fc->wait_lock); 1746 } 1747 msleep((void *)fc, &fc->wait_lock, PWAIT|PCATCH, "-", 0); 1748 } 1749 mtx_unlock(&fc->wait_lock); 1750 kproc_exit(0); 1751} 1752 1753/* 1754 * To attach sub-devices layer onto IEEE1394 bus. 1755 */ 1756static void 1757fw_attach_dev(struct firewire_comm *fc) 1758{ 1759 struct fw_device *fwdev, *next; 1760 int i, err; 1761 device_t *devlistp; 1762 int devcnt; 1763 struct firewire_dev_comm *fdc; 1764 1765 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1766 next = STAILQ_NEXT(fwdev, link); 1767 if (fwdev->status == FWDEVINIT) { 1768 fwdev->status = FWDEVATTACHED; 1769 } else if (fwdev->status == FWDEVINVAL) { 1770 fwdev->rcnt ++; 1771 if (firewire_debug) 1772 device_printf(fc->bdev, "%s:" 1773 "fwdev->rcnt(%d), hold_count(%d)\n", 1774 __func__, fwdev->rcnt, hold_count); 1775 if (fwdev->rcnt > hold_count) { 1776 /* 1777 * Remove devices which have not been seen 1778 * for a while. 1779 */ 1780 device_printf(fc->bdev, "%s:" 1781 "Removing missing device ID:%08x%08x\n", 1782 __func__, fwdev->eui.hi, fwdev->eui.lo); 1783 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1784 link); 1785 free(fwdev, M_FW); 1786 } 1787 } 1788 } 1789 1790 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1791 if( err == 0 ) { 1792 for( i = 0 ; i < devcnt ; i++){ 1793 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1794 fdc = device_get_softc(devlistp[i]); 1795 if (fdc->post_explore != NULL) 1796 fdc->post_explore(fdc); 1797 } 1798 } 1799 free(devlistp, M_TEMP); 1800 } 1801 1802 return; 1803} 1804 1805/* 1806 * To allocate unique transaction label. 1807 */ 1808static int 1809fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1810{ 1811 u_int dst, new_tlabel; 1812 struct fw_xfer *txfer; 1813 int s; 1814 1815 dst = xfer->send.hdr.mode.hdr.dst & 0x3f; 1816 s = splfw(); 1817 mtx_lock(&fc->tlabel_lock); 1818 new_tlabel = (fc->last_tlabel[dst] + 1) & 0x3f; 1819 STAILQ_FOREACH(txfer, &fc->tlabels[new_tlabel], tlabel) 1820 if ((txfer->send.hdr.mode.hdr.dst & 0x3f) == dst) 1821 break; 1822 if(txfer == NULL) { 1823 fc->last_tlabel[dst] = new_tlabel; 1824 STAILQ_INSERT_TAIL(&fc->tlabels[new_tlabel], xfer, tlabel); 1825 mtx_unlock(&fc->tlabel_lock); 1826 splx(s); 1827 xfer->tl = new_tlabel; 1828 xfer->send.hdr.mode.hdr.tlrt = new_tlabel << 2; 1829 if (firewire_debug > 1) 1830 printf("fw_get_tlabel: dst=%d tl=%d\n", dst, new_tlabel); 1831 return (new_tlabel); 1832 } 1833 mtx_unlock(&fc->tlabel_lock); 1834 splx(s); 1835 1836 if (firewire_debug > 1) 1837 printf("fw_get_tlabel: no free tlabel\n"); 1838 return (-1); 1839} 1840 1841static void 1842fw_rcv_copy(struct fw_rcv_buf *rb) 1843{ 1844 struct fw_pkt *pkt; 1845 u_char *p; 1846 struct tcode_info *tinfo; 1847 u_int res, i, len, plen; 1848 1849 rb->xfer->recv.spd = rb->spd; 1850 1851 pkt = (struct fw_pkt *)rb->vec->iov_base; 1852 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1853 1854 /* Copy header */ 1855 p = (u_char *)&rb->xfer->recv.hdr; 1856 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1857 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1858 rb->vec->iov_len -= tinfo->hdr_len; 1859 1860 /* Copy payload */ 1861 p = (u_char *)rb->xfer->recv.payload; 1862 res = rb->xfer->recv.pay_len; 1863 1864 /* special handling for RRESQ */ 1865 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1866 p != NULL && res >= sizeof(uint32_t)) { 1867 *(uint32_t *)p = pkt->mode.rresq.data; 1868 rb->xfer->recv.pay_len = sizeof(uint32_t); 1869 return; 1870 } 1871 1872 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1873 return; 1874 1875 plen = pkt->mode.rresb.len; 1876 1877 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1878 len = MIN(rb->vec->iov_len, plen); 1879 if (res < len) { 1880 device_printf(rb->fc->bdev, "%s:" 1881 " rcv buffer(%d) is %d bytes short.\n", 1882 __func__, rb->xfer->recv.pay_len, len - res); 1883 len = res; 1884 } 1885 bcopy(rb->vec->iov_base, p, len); 1886 p += len; 1887 res -= len; 1888 plen -= len; 1889 if (res == 0 || plen == 0) 1890 break; 1891 } 1892 rb->xfer->recv.pay_len -= res; 1893 1894} 1895 1896/* 1897 * Generic packet receiving process. 1898 */ 1899void 1900fw_rcv(struct fw_rcv_buf *rb) 1901{ 1902 struct fw_pkt *fp, *resfp; 1903 struct fw_bind *bind; 1904 int tcode; 1905 int i, len, oldstate; 1906#if 0 1907 { 1908 uint32_t *qld; 1909 int i; 1910 qld = (uint32_t *)buf; 1911 printf("spd %d len:%d\n", spd, len); 1912 for( i = 0 ; i <= len && i < 32; i+= 4){ 1913 printf("0x%08x ", ntohl(qld[i/4])); 1914 if((i % 16) == 15) printf("\n"); 1915 } 1916 if((i % 16) != 15) printf("\n"); 1917 } 1918#endif 1919 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1920 tcode = fp->mode.common.tcode; 1921 switch (tcode) { 1922 case FWTCODE_WRES: 1923 case FWTCODE_RRESQ: 1924 case FWTCODE_RRESB: 1925 case FWTCODE_LRES: 1926 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1927 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tcode); 1928 if(rb->xfer == NULL) { 1929 device_printf(rb->fc->bdev, "%s: " 1930 "unknown response " 1931 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1932 __func__, 1933 tcode_str[tcode], tcode, 1934 fp->mode.hdr.src, 1935 fp->mode.hdr.tlrt >> 2, 1936 fp->mode.hdr.tlrt & 3, 1937 fp->mode.rresq.data); 1938#if 0 1939 printf("try ad-hoc work around!!\n"); 1940 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1941 (fp->mode.hdr.tlrt >> 2)^3); 1942 if (rb->xfer == NULL) { 1943 printf("no use...\n"); 1944 return; 1945 } 1946#else 1947 return; 1948#endif 1949 } 1950 fw_rcv_copy(rb); 1951 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1952 rb->xfer->resp = EIO; 1953 else 1954 rb->xfer->resp = 0; 1955 /* make sure the packet is drained in AT queue */ 1956 oldstate = rb->xfer->flag; 1957 rb->xfer->flag = FWXF_RCVD; 1958 switch (oldstate) { 1959 case FWXF_SENT: 1960 fw_xfer_done(rb->xfer); 1961 break; 1962 case FWXF_START: 1963#if 0 1964 if (firewire_debug) 1965 printf("not sent yet tl=%x\n", rb->xfer->tl); 1966#endif 1967 break; 1968 default: 1969 device_printf(rb->fc->bdev, "%s: " 1970 "unexpected flag 0x%02x\n", __func__, rb->xfer->flag); 1971 } 1972 return; 1973 case FWTCODE_WREQQ: 1974 case FWTCODE_WREQB: 1975 case FWTCODE_RREQQ: 1976 case FWTCODE_RREQB: 1977 case FWTCODE_LREQ: 1978 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1979 fp->mode.rreqq.dest_lo); 1980 if(bind == NULL){ 1981 device_printf(rb->fc->bdev, "%s: " 1982 "Unknown service addr 0x%04x:0x%08x %s(%x)" 1983#if defined(__DragonFly__) || __FreeBSD_version < 500000 1984 " src=0x%x data=%lx\n", 1985#else 1986 " src=0x%x data=%x\n", 1987#endif 1988 __func__, 1989 fp->mode.wreqq.dest_hi, 1990 fp->mode.wreqq.dest_lo, 1991 tcode_str[tcode], tcode, 1992 fp->mode.hdr.src, 1993 ntohl(fp->mode.wreqq.data)); 1994 1995 if (rb->fc->status == FWBUSINIT) { 1996 device_printf(rb->fc->bdev, "%s: cannot respond(bus reset)!\n", 1997 __func__); 1998 return; 1999 } 2000 rb->xfer = fw_xfer_alloc(M_FWXFER); 2001 if(rb->xfer == NULL){ 2002 return; 2003 } 2004 rb->xfer->send.spd = rb->spd; 2005 rb->xfer->send.pay_len = 0; 2006 resfp = &rb->xfer->send.hdr; 2007 switch (tcode) { 2008 case FWTCODE_WREQQ: 2009 case FWTCODE_WREQB: 2010 resfp->mode.hdr.tcode = FWTCODE_WRES; 2011 break; 2012 case FWTCODE_RREQQ: 2013 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 2014 break; 2015 case FWTCODE_RREQB: 2016 resfp->mode.hdr.tcode = FWTCODE_RRESB; 2017 break; 2018 case FWTCODE_LREQ: 2019 resfp->mode.hdr.tcode = FWTCODE_LRES; 2020 break; 2021 } 2022 resfp->mode.hdr.dst = fp->mode.hdr.src; 2023 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 2024 resfp->mode.hdr.pri = fp->mode.hdr.pri; 2025 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 2026 resfp->mode.rresb.extcode = 0; 2027 resfp->mode.rresb.len = 0; 2028/* 2029 rb->xfer->hand = fw_xferwake; 2030*/ 2031 rb->xfer->hand = fw_xfer_free; 2032 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 2033 fw_xfer_free(rb->xfer); 2034 return; 2035 } 2036 return; 2037 } 2038 len = 0; 2039 for (i = 0; i < rb->nvec; i ++) 2040 len += rb->vec[i].iov_len; 2041 rb->xfer = STAILQ_FIRST(&bind->xferlist); 2042 if (rb->xfer == NULL) { 2043 device_printf(rb->fc->bdev, "%s: " 2044 "Discard a packet for this bind.\n", 2045 __func__); 2046 return; 2047 } 2048 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 2049 fw_rcv_copy(rb); 2050 rb->xfer->hand(rb->xfer); 2051 return; 2052#if 0 /* shouldn't happen ?? or for GASP */ 2053 case FWTCODE_STREAM: 2054 { 2055 struct fw_xferq *xferq; 2056 2057 xferq = rb->fc->ir[sub]; 2058#if 0 2059 printf("stream rcv dma %d len %d off %d spd %d\n", 2060 sub, len, off, spd); 2061#endif 2062 if(xferq->queued >= xferq->maxq) { 2063 printf("receive queue is full\n"); 2064 return; 2065 } 2066 /* XXX get xfer from xfer queue, we don't need copy for 2067 per packet mode */ 2068 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 2069 vec[0].iov_len); 2070 if (rb->xfer == NULL) 2071 return; 2072 fw_rcv_copy(rb) 2073 s = splfw(); 2074 xferq->queued++; 2075 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 2076 splx(s); 2077 sc = device_get_softc(rb->fc->bdev); 2078#if defined(__DragonFly__) || __FreeBSD_version < 500000 2079 if (&xferq->rsel.si_pid != 0) 2080#else 2081 if (SEL_WAITING(&xferq->rsel)) 2082#endif 2083 selwakeuppri(&xferq->rsel, FWPRI); 2084 if (xferq->flag & FWXFERQ_WAKEUP) { 2085 xferq->flag &= ~FWXFERQ_WAKEUP; 2086 wakeup((caddr_t)xferq); 2087 } 2088 if (xferq->flag & FWXFERQ_HANDLER) { 2089 xferq->hand(xferq); 2090 } 2091 return; 2092 break; 2093 } 2094#endif 2095 default: 2096 device_printf(rb->fc->bdev,"%s: unknown tcode %d\n", 2097 __func__, tcode); 2098 break; 2099 } 2100} 2101 2102/* 2103 * Post process for Bus Manager election process. 2104 */ 2105static void 2106fw_try_bmr_callback(struct fw_xfer *xfer) 2107{ 2108 struct firewire_comm *fc; 2109 int bmr; 2110 2111 if (xfer == NULL) 2112 return; 2113 fc = xfer->fc; 2114 if (xfer->resp != 0) 2115 goto error; 2116 if (xfer->recv.payload == NULL) 2117 goto error; 2118 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2119 goto error; 2120 2121 bmr = ntohl(xfer->recv.payload[0]); 2122 if (bmr == 0x3f) 2123 bmr = fc->nodeid; 2124 2125 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2126 fw_xfer_free_buf(xfer); 2127 fw_bmr(fc); 2128 return; 2129 2130error: 2131 device_printf(fc->bdev, "bus manager election failed\n"); 2132 fw_xfer_free_buf(xfer); 2133} 2134 2135 2136/* 2137 * To candidate Bus Manager election process. 2138 */ 2139static void 2140fw_try_bmr(void *arg) 2141{ 2142 struct fw_xfer *xfer; 2143 struct firewire_comm *fc = (struct firewire_comm *)arg; 2144 struct fw_pkt *fp; 2145 int err = 0; 2146 2147 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2148 if(xfer == NULL){ 2149 return; 2150 } 2151 xfer->send.spd = 0; 2152 fc->status = FWBUSMGRELECT; 2153 2154 fp = &xfer->send.hdr; 2155 fp->mode.lreq.dest_hi = 0xffff; 2156 fp->mode.lreq.tlrt = 0; 2157 fp->mode.lreq.tcode = FWTCODE_LREQ; 2158 fp->mode.lreq.pri = 0; 2159 fp->mode.lreq.src = 0; 2160 fp->mode.lreq.len = 8; 2161 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2162 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2163 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2164 xfer->send.payload[0] = htonl(0x3f); 2165 xfer->send.payload[1] = htonl(fc->nodeid); 2166 xfer->hand = fw_try_bmr_callback; 2167 2168 err = fw_asyreq(fc, -1, xfer); 2169 if(err){ 2170 fw_xfer_free_buf(xfer); 2171 return; 2172 } 2173 return; 2174} 2175 2176#ifdef FW_VMACCESS 2177/* 2178 * Software implementation for physical memory block access. 2179 * XXX:Too slow, usef for debug purpose only. 2180 */ 2181static void 2182fw_vmaccess(struct fw_xfer *xfer){ 2183 struct fw_pkt *rfp, *sfp = NULL; 2184 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2185 2186 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2187 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2188 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2189 if(xfer->resp != 0){ 2190 fw_xfer_free( xfer); 2191 return; 2192 } 2193 if(xfer->recv.buf == NULL){ 2194 fw_xfer_free( xfer); 2195 return; 2196 } 2197 rfp = (struct fw_pkt *)xfer->recv.buf; 2198 switch(rfp->mode.hdr.tcode){ 2199 /* XXX need fix for 64bit arch */ 2200 case FWTCODE_WREQB: 2201 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2202 xfer->send.len = 12; 2203 sfp = (struct fw_pkt *)xfer->send.buf; 2204 bcopy(rfp->mode.wreqb.payload, 2205 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2206 sfp->mode.wres.tcode = FWTCODE_WRES; 2207 sfp->mode.wres.rtcode = 0; 2208 break; 2209 case FWTCODE_WREQQ: 2210 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2211 xfer->send.len = 12; 2212 sfp->mode.wres.tcode = FWTCODE_WRES; 2213 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2214 sfp->mode.wres.rtcode = 0; 2215 break; 2216 case FWTCODE_RREQB: 2217 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2218 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2219 sfp = (struct fw_pkt *)xfer->send.buf; 2220 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2221 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2222 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2223 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2224 sfp->mode.rresb.rtcode = 0; 2225 sfp->mode.rresb.extcode = 0; 2226 break; 2227 case FWTCODE_RREQQ: 2228 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2229 xfer->send.len = 16; 2230 sfp = (struct fw_pkt *)xfer->send.buf; 2231 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2232 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2233 sfp->mode.rresb.rtcode = 0; 2234 break; 2235 default: 2236 fw_xfer_free( xfer); 2237 return; 2238 } 2239 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2240 xfer->dst = ntohs(rfp->mode.hdr.src); 2241 xfer->hand = fw_xfer_free; 2242 2243 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2244 sfp->mode.hdr.pri = 0; 2245 2246 fw_asyreq(xfer->fc, -1, xfer); 2247/**/ 2248 return; 2249} 2250#endif 2251 2252/* 2253 * CRC16 check-sum for IEEE1394 register blocks. 2254 */ 2255uint16_t 2256fw_crc16(uint32_t *ptr, uint32_t len){ 2257 uint32_t i, sum, crc = 0; 2258 int shift; 2259 len = (len + 3) & ~3; 2260 for(i = 0 ; i < len ; i+= 4){ 2261 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2262 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2263 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2264 } 2265 crc &= 0xffff; 2266 } 2267 return((uint16_t) crc); 2268} 2269 2270/* 2271 * Find the root node, if it is not 2272 * Cycle Master Capable, then we should 2273 * override this and become the Cycle 2274 * Master 2275 */ 2276static int 2277fw_bmr(struct firewire_comm *fc) 2278{ 2279 struct fw_device fwdev; 2280 union fw_self_id *self_id; 2281 int cmstr; 2282 uint32_t quad; 2283 2284 /* Check to see if the current root node is cycle master capable */ 2285 self_id = fw_find_self_id(fc, fc->max_node); 2286 if (fc->max_node > 0) { 2287 /* XXX check cmc bit of businfo block rather than contender */ 2288 if (self_id->p0.link_active && self_id->p0.contender) 2289 cmstr = fc->max_node; 2290 else { 2291 device_printf(fc->bdev, 2292 "root node is not cycle master capable\n"); 2293 /* XXX shall we be the cycle master? */ 2294 cmstr = fc->nodeid; 2295 /* XXX need bus reset */ 2296 } 2297 } else 2298 cmstr = -1; 2299 2300 device_printf(fc->bdev, "bus manager %d %s\n", 2301 CSRARC(fc, BUS_MGR_ID), 2302 (CSRARC(fc, BUS_MGR_ID) != fc->nodeid) ? "(me)" : ""); 2303 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2304 /* We are not the bus manager */ 2305 return(0); 2306 } 2307 2308 /* Optimize gapcount */ 2309 if(fc->max_hop <= MAX_GAPHOP ) 2310 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2311 /* If we are the cycle master, nothing to do */ 2312 if (cmstr == fc->nodeid || cmstr == -1) 2313 return 0; 2314 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2315 bzero(&fwdev, sizeof(fwdev)); 2316 fwdev.fc = fc; 2317 fwdev.dst = cmstr; 2318 fwdev.speed = 0; 2319 fwdev.maxrec = 8; /* 512 */ 2320 fwdev.status = FWDEVINIT; 2321 /* Set cmstr bit on the cycle master */ 2322 quad = htonl(1 << 8); 2323 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2324 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2325 2326 return 0; 2327} 2328 2329int 2330fw_open_isodma(struct firewire_comm *fc, int tx) 2331{ 2332 struct fw_xferq **xferqa; 2333 struct fw_xferq *xferq; 2334 int i; 2335 2336 if (tx) 2337 xferqa = &fc->it[0]; 2338 else 2339 xferqa = &fc->ir[0]; 2340 2341 FW_GLOCK(fc); 2342 for (i = 0; i < fc->nisodma; i ++) { 2343 xferq = xferqa[i]; 2344 if ((xferq->flag & FWXFERQ_OPEN) == 0) { 2345 xferq->flag |= FWXFERQ_OPEN; 2346 break; 2347 } 2348 } 2349 if (i == fc->nisodma) { 2350 printf("no free dma channel (tx=%d)\n", tx); 2351 i = -1; 2352 } 2353 FW_GUNLOCK(fc); 2354 return (i); 2355} 2356 2357static int 2358fw_modevent(module_t mode, int type, void *data) 2359{ 2360 int err = 0; 2361#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2362 static eventhandler_tag fwdev_ehtag = NULL; 2363#endif 2364 2365 switch (type) { 2366 case MOD_LOAD: 2367#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2368 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2369 fwdev_clone, 0, 1000); 2370#endif 2371 break; 2372 case MOD_UNLOAD: 2373#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2374 if (fwdev_ehtag != NULL) 2375 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2376#endif 2377 break; 2378 case MOD_SHUTDOWN: 2379 break; 2380 default: 2381 return (EOPNOTSUPP); 2382 } 2383 return (err); 2384} 2385 2386 2387#ifdef __DragonFly__ 2388DECLARE_DUMMY_MODULE(firewire); 2389#endif 2390DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2391MODULE_VERSION(firewire, 1); 2392