1 /*- 2 * Copyright (c) 2003 Hidetoshi Shimokawa 3 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the acknowledgement as bellow: 16 * 17 * This product includes software developed by K. Kobayashi and H. Shimokawa 18 * 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 25 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 * 34 * $FreeBSD$ 35 * 36 */ 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/types.h> 41 42 #include <sys/kernel.h> 43 #include <sys/module.h> 44 #include <sys/malloc.h> 45 #include <sys/conf.h> 46 #include <sys/sysctl.h> 47 #include <sys/kthread.h> 48 #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 73 struct crom_src_buf { 74 struct crom_src src; 75 struct crom_chunk root; 76 struct crom_chunk vendor; 77 struct crom_chunk hw; 78 }; 79 80 int firewire_debug=0, try_bmr=1, hold_count=3; 81 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 82 "FireWire driver debug flag"); 83 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 84 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 85 "Try to be a bus manager"); 86 SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0, 87 "Number of count of bus resets for removing lost device information"); 88 89 MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 90 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 91 92 #define FW_MAXASYRTY 4 93 94 devclass_t firewire_devclass; 95 96 static void firewire_identify (driver_t *, device_t); 97 static int firewire_probe (device_t); 98 static int firewire_attach (device_t); 99 static int firewire_detach (device_t); 100 static int firewire_resume (device_t); 101 static void firewire_xfer_timeout(void *, int); 102 #if 0 103 static int firewire_shutdown (device_t); 104 #endif 105 static device_t firewire_add_child (device_t, int, const char *, int); 106 static void fw_try_bmr (void *); 107 static void fw_try_bmr_callback (struct fw_xfer *); 108 static void fw_asystart (struct fw_xfer *); 109 static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *); 110 static void fw_bus_probe (struct firewire_comm *); 111 static void fw_attach_dev (struct firewire_comm *); 112 static void fw_bus_probe_thread(void *); 113 #ifdef FW_VMACCESS 114 static void fw_vmaccess (struct fw_xfer *); 115 #endif 116 static int fw_bmr (struct firewire_comm *); 117 static void fw_dump_hdr(struct fw_pkt *, char *); 118 119 static device_method_t firewire_methods[] = { 120 /* Device interface */ 121 DEVMETHOD(device_identify, firewire_identify), 122 DEVMETHOD(device_probe, firewire_probe), 123 DEVMETHOD(device_attach, firewire_attach), 124 DEVMETHOD(device_detach, firewire_detach), 125 DEVMETHOD(device_suspend, bus_generic_suspend), 126 DEVMETHOD(device_resume, firewire_resume), 127 DEVMETHOD(device_shutdown, bus_generic_shutdown), 128 129 /* Bus interface */ 130 DEVMETHOD(bus_add_child, firewire_add_child), 131 DEVMETHOD(bus_print_child, bus_generic_print_child), 132 133 { 0, 0 } 134 }; 135 char *linkspeed[] = { 136 "S100", "S200", "S400", "S800", 137 "S1600", "S3200", "undef", "undef" 138 }; 139 140 static 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 15 149 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 150 21, 24, 26, 29, 32, 35, 37, 40}; 151 152 static driver_t firewire_driver = { 153 "firewire", 154 firewire_methods, 155 sizeof(struct firewire_softc), 156 }; 157 158 /* 159 * Lookup fwdev by node id. 160 */ 161 struct fw_device * 162 fw_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 */ 179 struct fw_device * 180 fw_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 */ 201 int 202 fw_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 */ 282 void 283 fw_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 } 294 295 int 296 fw_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 */ 312 static void 313 fw_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 } 332 333 static void 334 firewire_identify(driver_t *driver, device_t parent) 335 { 336 BUS_ADD_CHILD(parent, 0, "firewire", -1); 337 } 338 339 static int 340 firewire_probe(device_t dev) 341 { 342 device_set_desc(dev, "IEEE1394(FireWire) bus"); 343 return (0); 344 } 345 346 static void 347 firewire_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 10 391 static void 392 firewire_watchdog(void *arg) 393 { 394 struct firewire_comm *fc; 395 static int watchdog_clock = 0; 396 397 fc = (struct firewire_comm *)arg; 398 399 /* 400 * At boot stage, the device interrupt is disabled and 401 * We encounter a timeout easily. To avoid this, 402 * ignore clock interrupt for a while. 403 */ 404 if (watchdog_clock > WATCHDOG_HZ * 15) 405 taskqueue_enqueue(fc->taskqueue, &fc->task_timeout); 406 else 407 watchdog_clock ++; 408 409 callout_reset(&fc->timeout_callout, hz / WATCHDOG_HZ, 410 (void *)firewire_watchdog, (void *)fc); 411 } 412 413 /* 414 * The attach routine. 415 */ 416 static int 417 firewire_attach(device_t dev) 418 { 419 int unit; 420 struct firewire_softc *sc = device_get_softc(dev); 421 device_t pa = device_get_parent(dev); 422 struct firewire_comm *fc; 423 424 fc = (struct firewire_comm *)device_get_softc(pa); 425 sc->fc = fc; 426 fc->status = FWBUSNOTREADY; 427 428 unit = device_get_unit(dev); 429 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 430 431 fwdev_makedev(sc); 432 433 fc->crom_src_buf = (struct crom_src_buf *)malloc( 434 sizeof(struct crom_src_buf), 435 M_FW, M_NOWAIT | M_ZERO); 436 if (fc->crom_src_buf == NULL) { 437 device_printf(fc->dev, "%s: Malloc Failure crom src buff\n", __func__); 438 return ENOMEM; 439 } 440 fc->topology_map = (struct fw_topology_map *)malloc( 441 sizeof(struct fw_topology_map), 442 M_FW, M_NOWAIT | M_ZERO); 443 if (fc->topology_map == NULL) { 444 device_printf(fc->dev, "%s: Malloc Failure topology map\n", __func__); 445 free(fc->crom_src_buf, M_FW); 446 return ENOMEM; 447 } 448 fc->speed_map = (struct fw_speed_map *)malloc( 449 sizeof(struct fw_speed_map), 450 M_FW, M_NOWAIT | M_ZERO); 451 if (fc->speed_map == NULL) { 452 device_printf(fc->dev, "%s: Malloc Failure speed map\n", __func__); 453 free(fc->crom_src_buf, M_FW); 454 free(fc->topology_map, M_FW); 455 return ENOMEM; 456 } 457 458 mtx_init(&fc->wait_lock, "fwwait", NULL, MTX_DEF); 459 mtx_init(&fc->tlabel_lock, "fwtlabel", NULL, MTX_DEF); 460 CALLOUT_INIT(&fc->timeout_callout); 461 CALLOUT_INIT(&fc->bmr_callout); 462 CALLOUT_INIT(&fc->busprobe_callout); 463 TASK_INIT(&fc->task_timeout, 0, firewire_xfer_timeout, (void *)fc); 464 465 callout_reset(&sc->fc->timeout_callout, hz, 466 (void *)firewire_watchdog, (void *)sc->fc); 467 468 /* create thread */ 469 kproc_create(fw_bus_probe_thread, (void *)fc, &fc->probe_thread, 470 0, 0, "fw%d_probe", unit); 471 472 /* Locate our children */ 473 bus_generic_probe(dev); 474 475 /* launch attachement of the added children */ 476 bus_generic_attach(dev); 477 478 /* bus_reset */ 479 FW_GLOCK(fc); 480 fw_busreset(fc, FWBUSNOTREADY); 481 FW_GUNLOCK(fc); 482 fc->ibr(fc); 483 484 return 0; 485 } 486 487 /* 488 * Attach it as child. 489 */ 490 static device_t 491 firewire_add_child(device_t dev, int order, const char *name, int unit) 492 { 493 device_t child; 494 struct firewire_softc *sc; 495 496 sc = (struct firewire_softc *)device_get_softc(dev); 497 child = device_add_child(dev, name, unit); 498 if (child) { 499 device_set_ivars(child, sc->fc); 500 device_probe_and_attach(child); 501 } 502 503 return child; 504 } 505 506 static int 507 firewire_resume(device_t dev) 508 { 509 struct firewire_softc *sc; 510 511 sc = (struct firewire_softc *)device_get_softc(dev); 512 sc->fc->status = FWBUSNOTREADY; 513 514 bus_generic_resume(dev); 515 516 return(0); 517 } 518 519 /* 520 * Dettach it. 521 */ 522 static int 523 firewire_detach(device_t dev) 524 { 525 struct firewire_softc *sc; 526 struct firewire_comm *fc; 527 struct fw_device *fwdev, *fwdev_next; 528 int err; 529 530 sc = (struct firewire_softc *)device_get_softc(dev); 531 fc = sc->fc; 532 mtx_lock(&fc->wait_lock); 533 fc->status = FWBUSDETACH; 534 wakeup(fc); 535 if (msleep(fc->probe_thread, &fc->wait_lock, PWAIT, "fwthr", hz * 60)) 536 printf("firewire probe thread didn't die\n"); 537 mtx_unlock(&fc->wait_lock); 538 539 if (fc->arq !=0 && fc->arq->maxq > 0) 540 fw_drain_txq(fc); 541 542 if ((err = fwdev_destroydev(sc)) != 0) 543 return err; 544 545 if ((err = bus_generic_detach(dev)) != 0) 546 return err; 547 548 callout_stop(&fc->timeout_callout); 549 callout_stop(&fc->bmr_callout); 550 callout_stop(&fc->busprobe_callout); 551 552 /* XXX xfer_free and untimeout on all xfers */ 553 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; 554 fwdev = fwdev_next) { 555 fwdev_next = STAILQ_NEXT(fwdev, link); 556 free(fwdev, M_FW); 557 } 558 free(fc->topology_map, M_FW); 559 free(fc->speed_map, M_FW); 560 free(fc->crom_src_buf, M_FW); 561 562 mtx_destroy(&fc->tlabel_lock); 563 mtx_destroy(&fc->wait_lock); 564 return(0); 565 } 566 #if 0 567 static int 568 firewire_shutdown( device_t dev ) 569 { 570 return 0; 571 } 572 #endif 573 574 575 static void 576 fw_xferq_drain(struct fw_xferq *xferq) 577 { 578 struct fw_xfer *xfer; 579 580 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 581 STAILQ_REMOVE_HEAD(&xferq->q, link); 582 #if 0 583 xferq->queued --; 584 #endif 585 xfer->resp = EAGAIN; 586 xfer->flag = FWXF_SENTERR; 587 fw_xfer_done(xfer); 588 } 589 } 590 591 void 592 fw_drain_txq(struct firewire_comm *fc) 593 { 594 struct fw_xfer *xfer, *txfer; 595 STAILQ_HEAD(, fw_xfer) xfer_drain; 596 int i; 597 598 STAILQ_INIT(&xfer_drain); 599 600 FW_GLOCK(fc); 601 fw_xferq_drain(fc->atq); 602 fw_xferq_drain(fc->ats); 603 for(i = 0; i < fc->nisodma; i++) 604 fw_xferq_drain(fc->it[i]); 605 FW_GUNLOCK(fc); 606 607 mtx_lock(&fc->tlabel_lock); 608 for (i = 0; i < 0x40; i ++) 609 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 610 if (firewire_debug) 611 printf("tl=%d flag=%d\n", i, xfer->flag); 612 xfer->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 } 621 622 static void 623 fw_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 } 666 667 static void 668 fw_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 } 699 700 static void 701 fw_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 */ 731 void 732 fw_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 */ 777 void 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 */ 887 struct fw_bind * 888 fw_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 */ 907 int 908 fw_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 */ 939 int 940 fw_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); 960 found: 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 } 974 975 int 976 fw_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 } 996 997 void 998 fw_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 */ 1011 static void 1012 fw_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 */ 1025 static void 1026 fw_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 */ 1062 static struct fw_xfer * 1063 fw_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 */ 1099 struct fw_xfer * 1100 fw_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 1113 struct fw_xfer * 1114 fw_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 */ 1145 void 1146 fw_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 1160 void 1161 fw_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 */ 1194 void 1195 fw_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 1211 void 1212 fw_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 1222 void 1223 fw_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 */ 1235 static void 1236 fw_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 printf("send phy_config root_node=%d gap_count=%d\n", 1261 root_node, gap_count); 1262 fw_asyreq(fc, -1, xfer); 1263 } 1264 1265 #if 0 1266 /* 1267 * Dump self ID. 1268 */ 1269 static void 1270 fw_print_sid(uint32_t sid) 1271 { 1272 union fw_self_id *s; 1273 s = (union fw_self_id *) &sid; 1274 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1275 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1276 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1277 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1278 s->p0.power_class, s->p0.port0, s->p0.port1, 1279 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1280 } 1281 #endif 1282 1283 /* 1284 * To receive self ID. 1285 */ 1286 void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1287 { 1288 uint32_t *p; 1289 union fw_self_id *self_id; 1290 u_int i, j, node, c_port = 0, i_branch = 0; 1291 1292 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1293 fc->max_node = fc->nodeid & 0x3f; 1294 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1295 fc->status = FWBUSCYMELECT; 1296 fc->topology_map->crc_len = 2; 1297 fc->topology_map->generation ++; 1298 fc->topology_map->self_id_count = 0; 1299 fc->topology_map->node_count = 0; 1300 fc->speed_map->generation ++; 1301 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1302 self_id = &fc->topology_map->self_id[0]; 1303 for(i = 0; i < fc->sid_cnt; i ++){ 1304 if (sid[1] != ~sid[0]) { 1305 printf("fw_sidrcv: invalid self-id packet\n"); 1306 sid += 2; 1307 continue; 1308 } 1309 *self_id = *((union fw_self_id *)sid); 1310 fc->topology_map->crc_len++; 1311 if(self_id->p0.sequel == 0){ 1312 fc->topology_map->node_count ++; 1313 c_port = 0; 1314 #if 0 1315 fw_print_sid(sid[0]); 1316 #endif 1317 node = self_id->p0.phy_id; 1318 if(fc->max_node < node){ 1319 fc->max_node = self_id->p0.phy_id; 1320 } 1321 /* XXX I'm not sure this is the right speed_map */ 1322 fc->speed_map->speed[node][node] 1323 = self_id->p0.phy_speed; 1324 for (j = 0; j < node; j ++) { 1325 fc->speed_map->speed[j][node] 1326 = fc->speed_map->speed[node][j] 1327 = min(fc->speed_map->speed[j][j], 1328 self_id->p0.phy_speed); 1329 } 1330 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1331 (self_id->p0.link_active && self_id->p0.contender)) { 1332 fc->irm = self_id->p0.phy_id; 1333 } 1334 if(self_id->p0.port0 >= 0x2){ 1335 c_port++; 1336 } 1337 if(self_id->p0.port1 >= 0x2){ 1338 c_port++; 1339 } 1340 if(self_id->p0.port2 >= 0x2){ 1341 c_port++; 1342 } 1343 } 1344 if(c_port > 2){ 1345 i_branch += (c_port - 2); 1346 } 1347 sid += 2; 1348 self_id++; 1349 fc->topology_map->self_id_count ++; 1350 } 1351 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1352 /* CRC */ 1353 fc->topology_map->crc = fw_crc16( 1354 (uint32_t *)&fc->topology_map->generation, 1355 fc->topology_map->crc_len * 4); 1356 fc->speed_map->crc = fw_crc16( 1357 (uint32_t *)&fc->speed_map->generation, 1358 fc->speed_map->crc_len * 4); 1359 /* byteswap and copy to CSR */ 1360 p = (uint32_t *)fc->topology_map; 1361 for (i = 0; i <= fc->topology_map->crc_len; i++) 1362 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1363 p = (uint32_t *)fc->speed_map; 1364 CSRARC(fc, SPED_MAP) = htonl(*p++); 1365 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1366 /* don't byte-swap uint8_t array */ 1367 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1368 1369 fc->max_hop = fc->max_node - i_branch; 1370 printf(", maxhop <= %d", fc->max_hop); 1371 1372 if(fc->irm == -1 ){ 1373 printf(", Not found IRM capable node"); 1374 }else{ 1375 printf(", cable IRM = %d", fc->irm); 1376 if (fc->irm == fc->nodeid) 1377 printf(" (me)"); 1378 } 1379 printf("\n"); 1380 1381 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1382 if (fc->irm == fc->nodeid) { 1383 fc->status = FWBUSMGRDONE; 1384 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1385 fw_bmr(fc); 1386 } else { 1387 fc->status = FWBUSMGRELECT; 1388 callout_reset(&fc->bmr_callout, hz/8, 1389 (void *)fw_try_bmr, (void *)fc); 1390 } 1391 } else 1392 fc->status = FWBUSMGRDONE; 1393 1394 callout_reset(&fc->busprobe_callout, hz/4, 1395 (void *)fw_bus_probe, (void *)fc); 1396 } 1397 1398 /* 1399 * To probe devices on the IEEE1394 bus. 1400 */ 1401 static void 1402 fw_bus_probe(struct firewire_comm *fc) 1403 { 1404 int s; 1405 struct fw_device *fwdev; 1406 1407 s = splfw(); 1408 fc->status = FWBUSEXPLORE; 1409 1410 /* Invalidate all devices, just after bus reset. */ 1411 STAILQ_FOREACH(fwdev, &fc->devices, link) 1412 if (fwdev->status != FWDEVINVAL) { 1413 fwdev->status = FWDEVINVAL; 1414 fwdev->rcnt = 0; 1415 } 1416 splx(s); 1417 1418 wakeup((void *)fc); 1419 } 1420 1421 static int 1422 fw_explore_read_quads(struct fw_device *fwdev, int offset, 1423 uint32_t *quad, int n) 1424 { 1425 struct fw_xfer *xfer; 1426 uint32_t tmp; 1427 int i, error; 1428 1429 for (i = 0; i < n; i ++, offset += sizeof(uint32_t)) { 1430 xfer = fwmem_read_quad(fwdev, NULL, -1, 1431 0xffff, 0xf0000000 | offset, (void *)&tmp, 1432 fw_xferwake); 1433 if (xfer == NULL) 1434 return (-1); 1435 fw_xferwait(xfer); 1436 1437 if (xfer->resp == 0) 1438 quad[i] = ntohl(tmp); 1439 1440 error = xfer->resp; 1441 fw_xfer_free(xfer); 1442 if (error) 1443 return (error); 1444 } 1445 return (0); 1446 } 1447 1448 1449 static int 1450 fw_explore_csrblock(struct fw_device *fwdev, int offset, int recur) 1451 { 1452 int err, i, off; 1453 struct csrdirectory *dir; 1454 struct csrreg *reg; 1455 1456 dir = (struct csrdirectory *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1457 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1458 (uint32_t *)dir, 1); 1459 if (err) 1460 return (-1); 1461 1462 offset += sizeof(uint32_t); 1463 reg = (struct csrreg *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1464 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1465 (uint32_t *)reg, dir->crc_len); 1466 if (err) 1467 return (-1); 1468 1469 /* XXX check CRC */ 1470 1471 off = CSRROMOFF + offset + sizeof(uint32_t) * (dir->crc_len - 1); 1472 if (fwdev->rommax < off) 1473 fwdev->rommax = off; 1474 1475 if (recur == 0) 1476 return (0); 1477 1478 for (i = 0; i < dir->crc_len; i ++, offset += sizeof(uint32_t)) { 1479 if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_D) 1480 recur = 1; 1481 else if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_L) 1482 recur = 0; 1483 else 1484 continue; 1485 1486 off = offset + reg[i].val * sizeof(uint32_t); 1487 if (off > CROMSIZE) { 1488 printf("%s: invalid offset %d\n", __FUNCTION__, off); 1489 return(-1); 1490 } 1491 err = fw_explore_csrblock(fwdev, off, recur); 1492 if (err) 1493 return (-1); 1494 } 1495 return (0); 1496 } 1497 1498 static int 1499 fw_explore_node(struct fw_device *dfwdev) 1500 { 1501 struct firewire_comm *fc; 1502 struct fw_device *fwdev, *pfwdev, *tfwdev; 1503 uint32_t *csr; 1504 struct csrhdr *hdr; 1505 struct bus_info *binfo; 1506 int err, node, spd; 1507 1508 fc = dfwdev->fc; 1509 csr = dfwdev->csrrom; 1510 node = dfwdev->dst; 1511 1512 /* First quad */ 1513 err = fw_explore_read_quads(dfwdev, CSRROMOFF, &csr[0], 1); 1514 if (err) 1515 return (-1); 1516 hdr = (struct csrhdr *)&csr[0]; 1517 if (hdr->info_len != 4) { 1518 if (firewire_debug) 1519 printf("node%d: wrong bus info len(%d)\n", 1520 node, hdr->info_len); 1521 return (-1); 1522 } 1523 1524 /* bus info */ 1525 err = fw_explore_read_quads(dfwdev, CSRROMOFF + 0x04, &csr[1], 4); 1526 if (err) 1527 return (-1); 1528 binfo = (struct bus_info *)&csr[1]; 1529 if (binfo->bus_name != CSR_BUS_NAME_IEEE1394) { 1530 if (firewire_debug) 1531 printf("node%d: invalid bus name 0x%08x\n", 1532 node, binfo->bus_name); 1533 return (-1); 1534 } 1535 spd = fc->speed_map->speed[fc->nodeid][node]; 1536 STAILQ_FOREACH(fwdev, &fc->devices, link) 1537 if (FW_EUI64_EQUAL(fwdev->eui, binfo->eui64)) 1538 break; 1539 if (fwdev == NULL) { 1540 /* new device */ 1541 fwdev = malloc(sizeof(struct fw_device), M_FW, 1542 M_NOWAIT | M_ZERO); 1543 if (fwdev == NULL) { 1544 if (firewire_debug) 1545 printf("node%d: no memory\n", node); 1546 return (-1); 1547 } 1548 fwdev->fc = fc; 1549 fwdev->eui = binfo->eui64; 1550 /* inesrt into sorted fwdev list */ 1551 pfwdev = NULL; 1552 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1553 if (tfwdev->eui.hi > fwdev->eui.hi || 1554 (tfwdev->eui.hi == fwdev->eui.hi && 1555 tfwdev->eui.lo > fwdev->eui.lo)) 1556 break; 1557 pfwdev = tfwdev; 1558 } 1559 if (pfwdev == NULL) 1560 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1561 else 1562 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1563 1564 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1565 linkspeed[spd], 1566 fwdev->eui.hi, fwdev->eui.lo); 1567 } 1568 fwdev->dst = node; 1569 fwdev->status = FWDEVINIT; 1570 fwdev->speed = spd; 1571 1572 /* unchanged ? */ 1573 if (bcmp(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5) == 0) { 1574 if (firewire_debug) 1575 device_printf(fc->dev, "node%d: crom unchanged\n", node); 1576 return (0); 1577 } 1578 1579 bzero(&fwdev->csrrom[0], CROMSIZE); 1580 1581 /* copy first quad and bus info block */ 1582 bcopy(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5); 1583 fwdev->rommax = CSRROMOFF + sizeof(uint32_t) * 4; 1584 1585 err = fw_explore_csrblock(fwdev, 0x14, 1); /* root directory */ 1586 1587 if (err) { 1588 fwdev->status = FWDEVINVAL; 1589 fwdev->csrrom[0] = 0; 1590 } 1591 return (err); 1592 1593 } 1594 1595 /* 1596 * Find the self_id packet for a node, ignoring sequels. 1597 */ 1598 static union fw_self_id * 1599 fw_find_self_id(struct firewire_comm *fc, int node) 1600 { 1601 uint32_t i; 1602 union fw_self_id *s; 1603 1604 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1605 s = &fc->topology_map->self_id[i]; 1606 if (s->p0.sequel) 1607 continue; 1608 if (s->p0.phy_id == node) 1609 return s; 1610 } 1611 return 0; 1612 } 1613 1614 static void 1615 fw_explore(struct firewire_comm *fc) 1616 { 1617 int node, err, s, i, todo, todo2, trys; 1618 char nodes[63]; 1619 struct fw_device dfwdev; 1620 union fw_self_id *fwsid; 1621 1622 todo = 0; 1623 /* setup dummy fwdev */ 1624 dfwdev.fc = fc; 1625 dfwdev.speed = 0; 1626 dfwdev.maxrec = 8; /* 512 */ 1627 dfwdev.status = FWDEVINIT; 1628 1629 for (node = 0; node <= fc->max_node; node ++) { 1630 /* We don't probe myself and linkdown nodes */ 1631 if (node == fc->nodeid) 1632 continue; 1633 fwsid = fw_find_self_id(fc, node); 1634 if (!fwsid || !fwsid->p0.link_active) { 1635 if (firewire_debug) 1636 printf("node%d: link down\n", node); 1637 continue; 1638 } 1639 nodes[todo++] = node; 1640 } 1641 1642 s = splfw(); 1643 for (trys = 0; todo > 0 && trys < 3; trys ++) { 1644 todo2 = 0; 1645 for (i = 0; i < todo; i ++) { 1646 dfwdev.dst = nodes[i]; 1647 err = fw_explore_node(&dfwdev); 1648 if (err) 1649 nodes[todo2++] = nodes[i]; 1650 if (firewire_debug) 1651 printf("%s: node %d, err = %d\n", 1652 __FUNCTION__, node, err); 1653 } 1654 todo = todo2; 1655 } 1656 splx(s); 1657 } 1658 1659 1660 static void 1661 fw_bus_probe_thread(void *arg) 1662 { 1663 struct firewire_comm *fc; 1664 1665 fc = (struct firewire_comm *)arg; 1666 1667 mtx_lock(&fc->wait_lock); 1668 while (fc->status != FWBUSDETACH) { 1669 if (fc->status == FWBUSEXPLORE) { 1670 mtx_unlock(&fc->wait_lock); 1671 fw_explore(fc); 1672 fc->status = FWBUSEXPDONE; 1673 if (firewire_debug) 1674 printf("bus_explore done\n"); 1675 fw_attach_dev(fc); 1676 mtx_lock(&fc->wait_lock); 1677 } 1678 msleep((void *)fc, &fc->wait_lock, PWAIT|PCATCH, "-", 0); 1679 } 1680 mtx_unlock(&fc->wait_lock); 1681 kproc_exit(0); 1682 } 1683 1684 /* 1685 * To attach sub-devices layer onto IEEE1394 bus. 1686 */ 1687 static void 1688 fw_attach_dev(struct firewire_comm *fc) 1689 { 1690 struct fw_device *fwdev, *next; 1691 int i, err; 1692 device_t *devlistp; 1693 int devcnt; 1694 struct firewire_dev_comm *fdc; 1695 1696 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1697 next = STAILQ_NEXT(fwdev, link); 1698 if (fwdev->status == FWDEVINIT) { 1699 fwdev->status = FWDEVATTACHED; 1700 } else if (fwdev->status == FWDEVINVAL) { 1701 fwdev->rcnt ++; 1702 if (fwdev->rcnt > hold_count) { 1703 /* 1704 * Remove devices which have not been seen 1705 * for a while. 1706 */ 1707 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1708 link); 1709 free(fwdev, M_FW); 1710 } 1711 } 1712 } 1713 1714 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1715 if( err != 0 ) 1716 return; 1717 for( i = 0 ; i < devcnt ; i++){ 1718 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1719 fdc = device_get_softc(devlistp[i]); 1720 if (fdc->post_explore != NULL) 1721 fdc->post_explore(fdc); 1722 } 1723 } 1724 free(devlistp, M_TEMP); 1725 1726 return; 1727 } 1728 1729 /* 1730 * To allocate unique transaction label. 1731 */ 1732 static int 1733 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1734 { 1735 u_int dst, new_tlabel; 1736 struct fw_xfer *txfer; 1737 int s; 1738 1739 dst = xfer->send.hdr.mode.hdr.dst & 0x3f; 1740 s = splfw(); 1741 mtx_lock(&fc->tlabel_lock); 1742 new_tlabel = (fc->last_tlabel[dst] + 1) & 0x3f; 1743 STAILQ_FOREACH(txfer, &fc->tlabels[new_tlabel], tlabel) 1744 if ((txfer->send.hdr.mode.hdr.dst & 0x3f) == dst) 1745 break; 1746 if(txfer == NULL) { 1747 fc->last_tlabel[dst] = new_tlabel; 1748 STAILQ_INSERT_TAIL(&fc->tlabels[new_tlabel], xfer, tlabel); 1749 mtx_unlock(&fc->tlabel_lock); 1750 splx(s); 1751 xfer->tl = new_tlabel; 1752 xfer->send.hdr.mode.hdr.tlrt = new_tlabel << 2; 1753 if (firewire_debug > 1) 1754 printf("fw_get_tlabel: dst=%d tl=%d\n", dst, new_tlabel); 1755 return (new_tlabel); 1756 } 1757 mtx_unlock(&fc->tlabel_lock); 1758 splx(s); 1759 1760 if (firewire_debug > 1) 1761 printf("fw_get_tlabel: no free tlabel\n"); 1762 return (-1); 1763 } 1764 1765 static void 1766 fw_rcv_copy(struct fw_rcv_buf *rb) 1767 { 1768 struct fw_pkt *pkt; 1769 u_char *p; 1770 struct tcode_info *tinfo; 1771 u_int res, i, len, plen; 1772 1773 rb->xfer->recv.spd = rb->spd; 1774 1775 pkt = (struct fw_pkt *)rb->vec->iov_base; 1776 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1777 1778 /* Copy header */ 1779 p = (u_char *)&rb->xfer->recv.hdr; 1780 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1781 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1782 rb->vec->iov_len -= tinfo->hdr_len; 1783 1784 /* Copy payload */ 1785 p = (u_char *)rb->xfer->recv.payload; 1786 res = rb->xfer->recv.pay_len; 1787 1788 /* special handling for RRESQ */ 1789 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1790 p != NULL && res >= sizeof(uint32_t)) { 1791 *(uint32_t *)p = pkt->mode.rresq.data; 1792 rb->xfer->recv.pay_len = sizeof(uint32_t); 1793 return; 1794 } 1795 1796 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1797 return; 1798 1799 plen = pkt->mode.rresb.len; 1800 1801 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1802 len = MIN(rb->vec->iov_len, plen); 1803 if (res < len) { 1804 printf("rcv buffer(%d) is %d bytes short.\n", 1805 rb->xfer->recv.pay_len, len - res); 1806 len = res; 1807 } 1808 bcopy(rb->vec->iov_base, p, len); 1809 p += len; 1810 res -= len; 1811 plen -= len; 1812 if (res == 0 || plen == 0) 1813 break; 1814 } 1815 rb->xfer->recv.pay_len -= res; 1816 1817 } 1818 1819 /* 1820 * Generic packet receiving process. 1821 */ 1822 void 1823 fw_rcv(struct fw_rcv_buf *rb) 1824 { 1825 struct fw_pkt *fp, *resfp; 1826 struct fw_bind *bind; 1827 int tcode; 1828 int i, len, oldstate; 1829 #if 0 1830 { 1831 uint32_t *qld; 1832 int i; 1833 qld = (uint32_t *)buf; 1834 printf("spd %d len:%d\n", spd, len); 1835 for( i = 0 ; i <= len && i < 32; i+= 4){ 1836 printf("0x%08x ", ntohl(qld[i/4])); 1837 if((i % 16) == 15) printf("\n"); 1838 } 1839 if((i % 16) != 15) printf("\n"); 1840 } 1841 #endif 1842 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1843 tcode = fp->mode.common.tcode; 1844 switch (tcode) { 1845 case FWTCODE_WRES: 1846 case FWTCODE_RRESQ: 1847 case FWTCODE_RRESB: 1848 case FWTCODE_LRES: 1849 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1850 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tcode); 1851 if(rb->xfer == NULL) { 1852 printf("fw_rcv: unknown response " 1853 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1854 tcode_str[tcode], tcode, 1855 fp->mode.hdr.src, 1856 fp->mode.hdr.tlrt >> 2, 1857 fp->mode.hdr.tlrt & 3, 1858 fp->mode.rresq.data); 1859 #if 0 1860 printf("try ad-hoc work around!!\n"); 1861 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1862 (fp->mode.hdr.tlrt >> 2)^3); 1863 if (rb->xfer == NULL) { 1864 printf("no use...\n"); 1865 return; 1866 } 1867 #else 1868 return; 1869 #endif 1870 } 1871 fw_rcv_copy(rb); 1872 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1873 rb->xfer->resp = EIO; 1874 else 1875 rb->xfer->resp = 0; 1876 /* make sure the packet is drained in AT queue */ 1877 oldstate = rb->xfer->flag; 1878 rb->xfer->flag = FWXF_RCVD; 1879 switch (oldstate) { 1880 case FWXF_SENT: 1881 fw_xfer_done(rb->xfer); 1882 break; 1883 case FWXF_START: 1884 #if 0 1885 if (firewire_debug) 1886 printf("not sent yet tl=%x\n", rb->xfer->tl); 1887 #endif 1888 break; 1889 default: 1890 printf("unexpected flag 0x%02x\n", rb->xfer->flag); 1891 } 1892 return; 1893 case FWTCODE_WREQQ: 1894 case FWTCODE_WREQB: 1895 case FWTCODE_RREQQ: 1896 case FWTCODE_RREQB: 1897 case FWTCODE_LREQ: 1898 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1899 fp->mode.rreqq.dest_lo); 1900 if(bind == NULL){ 1901 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1902 #if defined(__DragonFly__) || __FreeBSD_version < 500000 1903 " src=0x%x data=%lx\n", 1904 #else 1905 " src=0x%x data=%x\n", 1906 #endif 1907 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1908 tcode_str[tcode], tcode, 1909 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1910 if (rb->fc->status == FWBUSINIT) { 1911 printf("fw_rcv: cannot respond(bus reset)!\n"); 1912 return; 1913 } 1914 rb->xfer = fw_xfer_alloc(M_FWXFER); 1915 if(rb->xfer == NULL){ 1916 return; 1917 } 1918 rb->xfer->send.spd = rb->spd; 1919 rb->xfer->send.pay_len = 0; 1920 resfp = &rb->xfer->send.hdr; 1921 switch (tcode) { 1922 case FWTCODE_WREQQ: 1923 case FWTCODE_WREQB: 1924 resfp->mode.hdr.tcode = FWTCODE_WRES; 1925 break; 1926 case FWTCODE_RREQQ: 1927 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1928 break; 1929 case FWTCODE_RREQB: 1930 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1931 break; 1932 case FWTCODE_LREQ: 1933 resfp->mode.hdr.tcode = FWTCODE_LRES; 1934 break; 1935 } 1936 resfp->mode.hdr.dst = fp->mode.hdr.src; 1937 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1938 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1939 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1940 resfp->mode.rresb.extcode = 0; 1941 resfp->mode.rresb.len = 0; 1942 /* 1943 rb->xfer->hand = fw_xferwake; 1944 */ 1945 rb->xfer->hand = fw_xfer_free; 1946 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1947 fw_xfer_free(rb->xfer); 1948 return; 1949 } 1950 return; 1951 } 1952 len = 0; 1953 for (i = 0; i < rb->nvec; i ++) 1954 len += rb->vec[i].iov_len; 1955 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1956 if (rb->xfer == NULL) { 1957 #if 1 1958 printf("Discard a packet for this bind.\n"); 1959 #endif 1960 return; 1961 } 1962 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1963 fw_rcv_copy(rb); 1964 rb->xfer->hand(rb->xfer); 1965 return; 1966 #if 0 /* shouldn't happen ?? or for GASP */ 1967 case FWTCODE_STREAM: 1968 { 1969 struct fw_xferq *xferq; 1970 1971 xferq = rb->fc->ir[sub]; 1972 #if 0 1973 printf("stream rcv dma %d len %d off %d spd %d\n", 1974 sub, len, off, spd); 1975 #endif 1976 if(xferq->queued >= xferq->maxq) { 1977 printf("receive queue is full\n"); 1978 return; 1979 } 1980 /* XXX get xfer from xfer queue, we don't need copy for 1981 per packet mode */ 1982 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1983 vec[0].iov_len); 1984 if (rb->xfer == NULL) 1985 return; 1986 fw_rcv_copy(rb) 1987 s = splfw(); 1988 xferq->queued++; 1989 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1990 splx(s); 1991 sc = device_get_softc(rb->fc->bdev); 1992 #if defined(__DragonFly__) || __FreeBSD_version < 500000 1993 if (&xferq->rsel.si_pid != 0) 1994 #else 1995 if (SEL_WAITING(&xferq->rsel)) 1996 #endif 1997 selwakeuppri(&xferq->rsel, FWPRI); 1998 if (xferq->flag & FWXFERQ_WAKEUP) { 1999 xferq->flag &= ~FWXFERQ_WAKEUP; 2000 wakeup((caddr_t)xferq); 2001 } 2002 if (xferq->flag & FWXFERQ_HANDLER) { 2003 xferq->hand(xferq); 2004 } 2005 return; 2006 break; 2007 } 2008 #endif 2009 default: 2010 printf("fw_rcv: unknow tcode %d\n", tcode); 2011 break; 2012 } 2013 } 2014 2015 /* 2016 * Post process for Bus Manager election process. 2017 */ 2018 static void 2019 fw_try_bmr_callback(struct fw_xfer *xfer) 2020 { 2021 struct firewire_comm *fc; 2022 int bmr; 2023 2024 if (xfer == NULL) 2025 return; 2026 fc = xfer->fc; 2027 if (xfer->resp != 0) 2028 goto error; 2029 if (xfer->recv.payload == NULL) 2030 goto error; 2031 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2032 goto error; 2033 2034 bmr = ntohl(xfer->recv.payload[0]); 2035 if (bmr == 0x3f) 2036 bmr = fc->nodeid; 2037 2038 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2039 fw_xfer_free_buf(xfer); 2040 fw_bmr(fc); 2041 return; 2042 2043 error: 2044 device_printf(fc->bdev, "bus manager election failed\n"); 2045 fw_xfer_free_buf(xfer); 2046 } 2047 2048 2049 /* 2050 * To candidate Bus Manager election process. 2051 */ 2052 static void 2053 fw_try_bmr(void *arg) 2054 { 2055 struct fw_xfer *xfer; 2056 struct firewire_comm *fc = (struct firewire_comm *)arg; 2057 struct fw_pkt *fp; 2058 int err = 0; 2059 2060 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2061 if(xfer == NULL){ 2062 return; 2063 } 2064 xfer->send.spd = 0; 2065 fc->status = FWBUSMGRELECT; 2066 2067 fp = &xfer->send.hdr; 2068 fp->mode.lreq.dest_hi = 0xffff; 2069 fp->mode.lreq.tlrt = 0; 2070 fp->mode.lreq.tcode = FWTCODE_LREQ; 2071 fp->mode.lreq.pri = 0; 2072 fp->mode.lreq.src = 0; 2073 fp->mode.lreq.len = 8; 2074 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2075 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2076 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2077 xfer->send.payload[0] = htonl(0x3f); 2078 xfer->send.payload[1] = htonl(fc->nodeid); 2079 xfer->hand = fw_try_bmr_callback; 2080 2081 err = fw_asyreq(fc, -1, xfer); 2082 if(err){ 2083 fw_xfer_free_buf(xfer); 2084 return; 2085 } 2086 return; 2087 } 2088 2089 #ifdef FW_VMACCESS 2090 /* 2091 * Software implementation for physical memory block access. 2092 * XXX:Too slow, usef for debug purpose only. 2093 */ 2094 static void 2095 fw_vmaccess(struct fw_xfer *xfer){ 2096 struct fw_pkt *rfp, *sfp = NULL; 2097 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2098 2099 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2100 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2101 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2102 if(xfer->resp != 0){ 2103 fw_xfer_free( xfer); 2104 return; 2105 } 2106 if(xfer->recv.buf == NULL){ 2107 fw_xfer_free( xfer); 2108 return; 2109 } 2110 rfp = (struct fw_pkt *)xfer->recv.buf; 2111 switch(rfp->mode.hdr.tcode){ 2112 /* XXX need fix for 64bit arch */ 2113 case FWTCODE_WREQB: 2114 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2115 xfer->send.len = 12; 2116 sfp = (struct fw_pkt *)xfer->send.buf; 2117 bcopy(rfp->mode.wreqb.payload, 2118 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2119 sfp->mode.wres.tcode = FWTCODE_WRES; 2120 sfp->mode.wres.rtcode = 0; 2121 break; 2122 case FWTCODE_WREQQ: 2123 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2124 xfer->send.len = 12; 2125 sfp->mode.wres.tcode = FWTCODE_WRES; 2126 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2127 sfp->mode.wres.rtcode = 0; 2128 break; 2129 case FWTCODE_RREQB: 2130 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2131 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2132 sfp = (struct fw_pkt *)xfer->send.buf; 2133 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2134 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2135 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2136 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2137 sfp->mode.rresb.rtcode = 0; 2138 sfp->mode.rresb.extcode = 0; 2139 break; 2140 case FWTCODE_RREQQ: 2141 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2142 xfer->send.len = 16; 2143 sfp = (struct fw_pkt *)xfer->send.buf; 2144 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2145 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2146 sfp->mode.rresb.rtcode = 0; 2147 break; 2148 default: 2149 fw_xfer_free( xfer); 2150 return; 2151 } 2152 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2153 xfer->dst = ntohs(rfp->mode.hdr.src); 2154 xfer->hand = fw_xfer_free; 2155 2156 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2157 sfp->mode.hdr.pri = 0; 2158 2159 fw_asyreq(xfer->fc, -1, xfer); 2160 /**/ 2161 return; 2162 } 2163 #endif 2164 2165 /* 2166 * CRC16 check-sum for IEEE1394 register blocks. 2167 */ 2168 uint16_t 2169 fw_crc16(uint32_t *ptr, uint32_t len){ 2170 uint32_t i, sum, crc = 0; 2171 int shift; 2172 len = (len + 3) & ~3; 2173 for(i = 0 ; i < len ; i+= 4){ 2174 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2175 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2176 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2177 } 2178 crc &= 0xffff; 2179 } 2180 return((uint16_t) crc); 2181 } 2182 2183 static int 2184 fw_bmr(struct firewire_comm *fc) 2185 { 2186 struct fw_device fwdev; 2187 union fw_self_id *self_id; 2188 int cmstr; 2189 uint32_t quad; 2190 2191 /* Check to see if the current root node is cycle master capable */ 2192 self_id = fw_find_self_id(fc, fc->max_node); 2193 if (fc->max_node > 0) { 2194 /* XXX check cmc bit of businfo block rather than contender */ 2195 if (self_id->p0.link_active && self_id->p0.contender) 2196 cmstr = fc->max_node; 2197 else { 2198 device_printf(fc->bdev, 2199 "root node is not cycle master capable\n"); 2200 /* XXX shall we be the cycle master? */ 2201 cmstr = fc->nodeid; 2202 /* XXX need bus reset */ 2203 } 2204 } else 2205 cmstr = -1; 2206 2207 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2208 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2209 /* We are not the bus manager */ 2210 printf("\n"); 2211 return(0); 2212 } 2213 printf("(me)\n"); 2214 2215 /* Optimize gapcount */ 2216 if(fc->max_hop <= MAX_GAPHOP ) 2217 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2218 /* If we are the cycle master, nothing to do */ 2219 if (cmstr == fc->nodeid || cmstr == -1) 2220 return 0; 2221 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2222 bzero(&fwdev, sizeof(fwdev)); 2223 fwdev.fc = fc; 2224 fwdev.dst = cmstr; 2225 fwdev.speed = 0; 2226 fwdev.maxrec = 8; /* 512 */ 2227 fwdev.status = FWDEVINIT; 2228 /* Set cmstr bit on the cycle master */ 2229 quad = htonl(1 << 8); 2230 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2231 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2232 2233 return 0; 2234 } 2235 2236 int 2237 fw_open_isodma(struct firewire_comm *fc, int tx) 2238 { 2239 struct fw_xferq **xferqa; 2240 struct fw_xferq *xferq; 2241 int i; 2242 2243 if (tx) 2244 xferqa = &fc->it[0]; 2245 else 2246 xferqa = &fc->ir[0]; 2247 2248 FW_GLOCK(fc); 2249 for (i = 0; i < fc->nisodma; i ++) { 2250 xferq = xferqa[i]; 2251 if ((xferq->flag & FWXFERQ_OPEN) == 0) { 2252 xferq->flag |= FWXFERQ_OPEN; 2253 break; 2254 } 2255 } 2256 if (i == fc->nisodma) { 2257 printf("no free dma channel (tx=%d)\n", tx); 2258 i = -1; 2259 } 2260 FW_GUNLOCK(fc); 2261 return (i); 2262 } 2263 2264 static int 2265 fw_modevent(module_t mode, int type, void *data) 2266 { 2267 int err = 0; 2268 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2269 static eventhandler_tag fwdev_ehtag = NULL; 2270 #endif 2271 2272 switch (type) { 2273 case MOD_LOAD: 2274 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2275 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2276 fwdev_clone, 0, 1000); 2277 #endif 2278 break; 2279 case MOD_UNLOAD: 2280 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2281 if (fwdev_ehtag != NULL) 2282 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2283 #endif 2284 break; 2285 case MOD_SHUTDOWN: 2286 break; 2287 default: 2288 return (EOPNOTSUPP); 2289 } 2290 return (err); 2291 } 2292 2293 2294 #ifdef __DragonFly__ 2295 DECLARE_DUMMY_MODULE(firewire); 2296 #endif 2297 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2298 MODULE_VERSION(firewire, 1); 2299