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 49 #include <sys/kdb.h> 50 51 #if defined(__DragonFly__) || __FreeBSD_version < 500000 52 #include <machine/clock.h> /* for DELAY() */ 53 #endif 54 55 #include <sys/bus.h> /* used by smbus and newbus */ 56 #include <machine/bus.h> 57 58 #ifdef __DragonFly__ 59 #include "firewire.h" 60 #include "firewirereg.h" 61 #include "fwmem.h" 62 #include "iec13213.h" 63 #include "iec68113.h" 64 #else 65 #include <dev/firewire/firewire.h> 66 #include <dev/firewire/firewirereg.h> 67 #include <dev/firewire/fwmem.h> 68 #include <dev/firewire/iec13213.h> 69 #include <dev/firewire/iec68113.h> 70 #endif 71 72 struct crom_src_buf { 73 struct crom_src src; 74 struct crom_chunk root; 75 struct crom_chunk vendor; 76 struct crom_chunk hw; 77 }; 78 79 int firewire_debug=0, try_bmr=1, hold_count=3; 80 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 81 "FireWire driver debug flag"); 82 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 83 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 84 "Try to be a bus manager"); 85 SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0, 86 "Number of count of bus resets for removing lost device information"); 87 88 MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 89 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 90 91 #define FW_MAXASYRTY 4 92 93 devclass_t firewire_devclass; 94 95 static void firewire_identify (driver_t *, device_t); 96 static int firewire_probe (device_t); 97 static int firewire_attach (device_t); 98 static int firewire_detach (device_t); 99 static int firewire_resume (device_t); 100 static void firewire_xfer_timeout(void *, int); 101 #if 0 102 static int firewire_shutdown (device_t); 103 #endif 104 static device_t firewire_add_child (device_t, int, const char *, int); 105 static void fw_try_bmr (void *); 106 static void fw_try_bmr_callback (struct fw_xfer *); 107 static void fw_asystart (struct fw_xfer *); 108 static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *); 109 static void fw_bus_probe (struct firewire_comm *); 110 static void fw_attach_dev (struct firewire_comm *); 111 static void fw_bus_probe_thread(void *); 112 #ifdef FW_VMACCESS 113 static void fw_vmaccess (struct fw_xfer *); 114 #endif 115 static int fw_bmr (struct firewire_comm *); 116 static void fw_dump_hdr(struct fw_pkt *, char *); 117 118 static device_method_t firewire_methods[] = { 119 /* Device interface */ 120 DEVMETHOD(device_identify, firewire_identify), 121 DEVMETHOD(device_probe, firewire_probe), 122 DEVMETHOD(device_attach, firewire_attach), 123 DEVMETHOD(device_detach, firewire_detach), 124 DEVMETHOD(device_suspend, bus_generic_suspend), 125 DEVMETHOD(device_resume, firewire_resume), 126 DEVMETHOD(device_shutdown, bus_generic_shutdown), 127 128 /* Bus interface */ 129 DEVMETHOD(bus_add_child, firewire_add_child), 130 DEVMETHOD(bus_print_child, bus_generic_print_child), 131 132 { 0, 0 } 133 }; 134 char *linkspeed[] = { 135 "S100", "S200", "S400", "S800", 136 "S1600", "S3200", "undef", "undef" 137 }; 138 139 static char *tcode_str[] = { 140 "WREQQ", "WREQB", "WRES", "undef", 141 "RREQQ", "RREQB", "RRESQ", "RRESB", 142 "CYCS", "LREQ", "STREAM", "LRES", 143 "undef", "undef", "PHY", "undef" 144 }; 145 146 /* IEEE-1394a Table C-2 Gap count as a function of hops*/ 147 #define MAX_GAPHOP 15 148 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 149 21, 24, 26, 29, 32, 35, 37, 40}; 150 151 static driver_t firewire_driver = { 152 "firewire", 153 firewire_methods, 154 sizeof(struct firewire_softc), 155 }; 156 157 /* 158 * Lookup fwdev by node id. 159 */ 160 struct fw_device * 161 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 162 { 163 struct fw_device *fwdev; 164 int s; 165 166 s = splfw(); 167 STAILQ_FOREACH(fwdev, &fc->devices, link) 168 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 169 break; 170 splx(s); 171 172 return fwdev; 173 } 174 175 /* 176 * Lookup fwdev by EUI64. 177 */ 178 struct fw_device * 179 fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 180 { 181 struct fw_device *fwdev; 182 int s; 183 184 s = splfw(); 185 FW_GLOCK(fc); 186 STAILQ_FOREACH(fwdev, &fc->devices, link) 187 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 188 break; 189 FW_GUNLOCK(fc); 190 splx(s); 191 192 if(fwdev == NULL) return NULL; 193 if(fwdev->status == FWDEVINVAL) return NULL; 194 return fwdev; 195 } 196 197 /* 198 * Async. request procedure for userland application. 199 */ 200 int 201 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 202 { 203 int err = 0; 204 struct fw_xferq *xferq; 205 int len; 206 struct fw_pkt *fp; 207 int tcode; 208 struct tcode_info *info; 209 210 if(xfer == NULL) return EINVAL; 211 if(xfer->hand == NULL){ 212 printf("hand == NULL\n"); 213 return EINVAL; 214 } 215 fp = &xfer->send.hdr; 216 217 tcode = fp->mode.common.tcode & 0xf; 218 info = &fc->tcode[tcode]; 219 if (info->flag == 0) { 220 printf("invalid tcode=%x\n", tcode); 221 return EINVAL; 222 } 223 224 /* XXX allow bus explore packets only after bus rest */ 225 if ((fc->status < FWBUSEXPLORE) && 226 ((tcode != FWTCODE_RREQQ) || (fp->mode.rreqq.dest_hi != 0xffff) || 227 (fp->mode.rreqq.dest_lo < 0xf0000000) || 228 (fp->mode.rreqq.dest_lo >= 0xf0001000))) { 229 xfer->resp = EAGAIN; 230 xfer->flag = FWXF_BUSY; 231 return (EAGAIN); 232 } 233 234 if (info->flag & FWTI_REQ) 235 xferq = fc->atq; 236 else 237 xferq = fc->ats; 238 len = info->hdr_len; 239 if (xfer->send.pay_len > MAXREC(fc->maxrec)) { 240 printf("send.pay_len > maxrec\n"); 241 return EINVAL; 242 } 243 if (info->flag & FWTI_BLOCK_STR) 244 len = fp->mode.stream.len; 245 else if (info->flag & FWTI_BLOCK_ASY) 246 len = fp->mode.rresb.len; 247 else 248 len = 0; 249 if (len != xfer->send.pay_len){ 250 printf("len(%d) != send.pay_len(%d) %s(%x)\n", 251 len, xfer->send.pay_len, tcode_str[tcode], tcode); 252 return EINVAL; 253 } 254 255 if(xferq->start == NULL){ 256 printf("xferq->start == NULL\n"); 257 return EINVAL; 258 } 259 if(!(xferq->queued < xferq->maxq)){ 260 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 261 xferq->queued); 262 return EAGAIN; 263 } 264 265 xfer->tl = -1; 266 if (info->flag & FWTI_TLABEL) { 267 if (fw_get_tlabel(fc, xfer) < 0) 268 return EAGAIN; 269 } 270 271 xfer->resp = 0; 272 xfer->fc = fc; 273 xfer->q = xferq; 274 275 fw_asystart(xfer); 276 return err; 277 } 278 /* 279 * Wakeup blocked process. 280 */ 281 void 282 fw_xferwake(struct fw_xfer *xfer) 283 { 284 struct mtx *lock = &xfer->fc->wait_lock; 285 286 mtx_lock(lock); 287 xfer->flag |= FWXF_WAKE; 288 mtx_unlock(lock); 289 290 wakeup(xfer); 291 return; 292 } 293 294 int 295 fw_xferwait(struct fw_xfer *xfer) 296 { 297 struct mtx *lock = &xfer->fc->wait_lock; 298 int err = 0; 299 300 mtx_lock(lock); 301 if ((xfer->flag & FWXF_WAKE) == 0) 302 err = msleep((void *)xfer, lock, PWAIT|PCATCH, "fw_xferwait", 0); 303 mtx_unlock(lock); 304 305 return (err); 306 } 307 308 /* 309 * Async. request with given xfer structure. 310 */ 311 static void 312 fw_asystart(struct fw_xfer *xfer) 313 { 314 struct firewire_comm *fc = xfer->fc; 315 int s; 316 s = splfw(); 317 /* Protect from interrupt/timeout */ 318 FW_GLOCK(fc); 319 xfer->flag = FWXF_INQ; 320 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 321 #if 0 322 xfer->q->queued ++; 323 #endif 324 FW_GUNLOCK(fc); 325 splx(s); 326 /* XXX just queue for mbuf */ 327 if (xfer->mbuf == NULL) 328 xfer->q->start(fc); 329 return; 330 } 331 332 static void 333 firewire_identify(driver_t *driver, device_t parent) 334 { 335 BUS_ADD_CHILD(parent, 0, "firewire", -1); 336 } 337 338 static int 339 firewire_probe(device_t dev) 340 { 341 device_set_desc(dev, "IEEE1394(FireWire) bus"); 342 return (0); 343 } 344 345 static void 346 firewire_xfer_timeout(void *arg, int pending) 347 { 348 struct firewire_comm *fc = (struct firewire_comm *)arg; 349 struct fw_xfer *xfer, *txfer; 350 struct timeval tv; 351 struct timeval split_timeout; 352 STAILQ_HEAD(, fw_xfer) xfer_timeout; 353 int i, s; 354 355 split_timeout.tv_sec = 0; 356 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 357 358 microtime(&tv); 359 timevalsub(&tv, &split_timeout); 360 STAILQ_INIT(&xfer_timeout); 361 362 s = splfw(); 363 mtx_lock(&fc->tlabel_lock); 364 for (i = 0; i < 0x40; i ++) { 365 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 366 if ((xfer->flag & FWXF_SENT) == 0) 367 /* not sent yet */ 368 break; 369 if (timevalcmp(&xfer->tv, &tv, >)) 370 /* the rests are newer than this */ 371 break; 372 device_printf(fc->bdev, 373 "split transaction timeout: " 374 "tl=0x%x flag=0x%02x\n", i, xfer->flag); 375 fw_dump_hdr(&xfer->send.hdr, "send"); 376 xfer->resp = ETIMEDOUT; 377 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel); 378 STAILQ_INSERT_TAIL(&xfer_timeout, xfer, tlabel); 379 } 380 } 381 mtx_unlock(&fc->tlabel_lock); 382 splx(s); 383 fc->timeout(fc); 384 385 STAILQ_FOREACH_SAFE(xfer, &xfer_timeout, tlabel, txfer) 386 xfer->hand(xfer); 387 } 388 389 #define WATCHDOG_HZ 10 390 static void 391 firewire_watchdog(void *arg) 392 { 393 struct firewire_comm *fc; 394 static int watchdog_clock = 0; 395 396 fc = (struct firewire_comm *)arg; 397 398 /* 399 * At boot stage, the device interrupt is disabled and 400 * We encounter a timeout easily. To avoid this, 401 * ignore clock interrupt for a while. 402 */ 403 if (watchdog_clock > WATCHDOG_HZ * 15) 404 taskqueue_enqueue(fc->taskqueue, &fc->task_timeout); 405 else 406 watchdog_clock ++; 407 408 callout_reset(&fc->timeout_callout, hz / WATCHDOG_HZ, 409 (void *)firewire_watchdog, (void *)fc); 410 } 411 412 /* 413 * The attach routine. 414 */ 415 static int 416 firewire_attach(device_t dev) 417 { 418 int unit; 419 struct firewire_softc *sc = device_get_softc(dev); 420 device_t pa = device_get_parent(dev); 421 struct firewire_comm *fc; 422 423 fc = (struct firewire_comm *)device_get_softc(pa); 424 sc->fc = fc; 425 fc->status = FWBUSNOTREADY; 426 427 unit = device_get_unit(dev); 428 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 429 430 fwdev_makedev(sc); 431 432 mtx_init(&fc->wait_lock, "fwwait", NULL, MTX_DEF); 433 mtx_init(&fc->tlabel_lock, "fwtlabel", NULL, MTX_DEF); 434 CALLOUT_INIT(&fc->timeout_callout); 435 CALLOUT_INIT(&fc->bmr_callout); 436 CALLOUT_INIT(&fc->busprobe_callout); 437 TASK_INIT(&fc->task_timeout, 0, firewire_xfer_timeout, (void *)fc); 438 439 callout_reset(&sc->fc->timeout_callout, hz, 440 (void *)firewire_watchdog, (void *)sc->fc); 441 442 /* create thread */ 443 kproc_create(fw_bus_probe_thread, (void *)fc, &fc->probe_thread, 444 0, 0, "fw%d_probe", unit); 445 446 /* Locate our children */ 447 bus_generic_probe(dev); 448 449 /* launch attachement of the added children */ 450 bus_generic_attach(dev); 451 452 /* bus_reset */ 453 fw_busreset(fc, FWBUSNOTREADY); 454 fc->ibr(fc); 455 456 return 0; 457 } 458 459 /* 460 * Attach it as child. 461 */ 462 static device_t 463 firewire_add_child(device_t dev, int order, const char *name, int unit) 464 { 465 device_t child; 466 struct firewire_softc *sc; 467 468 sc = (struct firewire_softc *)device_get_softc(dev); 469 child = device_add_child(dev, name, unit); 470 if (child) { 471 device_set_ivars(child, sc->fc); 472 device_probe_and_attach(child); 473 } 474 475 return child; 476 } 477 478 static int 479 firewire_resume(device_t dev) 480 { 481 struct firewire_softc *sc; 482 483 sc = (struct firewire_softc *)device_get_softc(dev); 484 sc->fc->status = FWBUSNOTREADY; 485 486 bus_generic_resume(dev); 487 488 return(0); 489 } 490 491 /* 492 * Dettach it. 493 */ 494 static int 495 firewire_detach(device_t dev) 496 { 497 struct firewire_softc *sc; 498 struct firewire_comm *fc; 499 struct fw_device *fwdev, *fwdev_next; 500 int err; 501 502 sc = (struct firewire_softc *)device_get_softc(dev); 503 fc = sc->fc; 504 mtx_lock(&fc->wait_lock); 505 fc->status = FWBUSDETACH; 506 wakeup(fc); 507 if (msleep(fc->probe_thread, &fc->wait_lock, PWAIT, "fwthr", hz * 60)) 508 printf("firewire probe thread didn't die\n"); 509 mtx_unlock(&fc->wait_lock); 510 511 if (fc->arq !=0 && fc->arq->maxq > 0) 512 fw_drain_txq(fc); 513 514 if ((err = fwdev_destroydev(sc)) != 0) 515 return err; 516 517 if ((err = bus_generic_detach(dev)) != 0) 518 return err; 519 520 callout_stop(&fc->timeout_callout); 521 callout_stop(&fc->bmr_callout); 522 callout_stop(&fc->busprobe_callout); 523 524 /* XXX xfer_free and untimeout on all xfers */ 525 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; 526 fwdev = fwdev_next) { 527 fwdev_next = STAILQ_NEXT(fwdev, link); 528 free(fwdev, M_FW); 529 } 530 free(fc->topology_map, M_FW); 531 free(fc->speed_map, M_FW); 532 free(fc->crom_src_buf, M_FW); 533 534 mtx_destroy(&fc->tlabel_lock); 535 mtx_destroy(&fc->wait_lock); 536 return(0); 537 } 538 #if 0 539 static int 540 firewire_shutdown( device_t dev ) 541 { 542 return 0; 543 } 544 #endif 545 546 547 static void 548 fw_xferq_drain(struct fw_xferq *xferq) 549 { 550 struct fw_xfer *xfer; 551 552 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 553 STAILQ_REMOVE_HEAD(&xferq->q, link); 554 #if 0 555 xferq->queued --; 556 #endif 557 xfer->resp = EAGAIN; 558 xfer->flag = FWXF_SENTERR; 559 fw_xfer_done(xfer); 560 } 561 } 562 563 void 564 fw_drain_txq(struct firewire_comm *fc) 565 { 566 struct fw_xfer *xfer, *txfer; 567 STAILQ_HEAD(, fw_xfer) xfer_drain; 568 int i; 569 570 STAILQ_INIT(&xfer_drain); 571 572 FW_GLOCK(fc); 573 fw_xferq_drain(fc->atq); 574 fw_xferq_drain(fc->ats); 575 for(i = 0; i < fc->nisodma; i++) 576 fw_xferq_drain(fc->it[i]); 577 FW_GUNLOCK(fc); 578 579 mtx_lock(&fc->tlabel_lock); 580 for (i = 0; i < 0x40; i ++) 581 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 582 if (firewire_debug) 583 printf("tl=%d flag=%d\n", i, xfer->flag); 584 xfer->resp = EAGAIN; 585 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel); 586 STAILQ_INSERT_TAIL(&xfer_drain, xfer, tlabel); 587 } 588 mtx_unlock(&fc->tlabel_lock); 589 590 STAILQ_FOREACH_SAFE(xfer, &xfer_drain, tlabel, txfer) 591 xfer->hand(xfer); 592 } 593 594 static void 595 fw_reset_csr(struct firewire_comm *fc) 596 { 597 int i; 598 599 CSRARC(fc, STATE_CLEAR) 600 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 601 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 602 CSRARC(fc, NODE_IDS) = 0x3f; 603 604 CSRARC(fc, TOPO_MAP + 8) = 0; 605 fc->irm = -1; 606 607 fc->max_node = -1; 608 609 for(i = 2; i < 0x100/4 - 2 ; i++){ 610 CSRARC(fc, SPED_MAP + i * 4) = 0; 611 } 612 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 613 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 614 CSRARC(fc, RESET_START) = 0; 615 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 616 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 617 CSRARC(fc, CYCLE_TIME) = 0x0; 618 CSRARC(fc, BUS_TIME) = 0x0; 619 CSRARC(fc, BUS_MGR_ID) = 0x3f; 620 CSRARC(fc, BANDWIDTH_AV) = 4915; 621 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 622 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 623 CSRARC(fc, IP_CHANNELS) = (1 << 31); 624 625 CSRARC(fc, CONF_ROM) = 0x04 << 24; 626 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 627 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 628 1 << 28 | 0xff << 16 | 0x09 << 8; 629 CSRARC(fc, CONF_ROM + 0xc) = 0; 630 631 /* DV depend CSRs see blue book */ 632 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 633 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 634 635 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 636 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 637 } 638 639 static void 640 fw_init_crom(struct firewire_comm *fc) 641 { 642 struct crom_src *src; 643 644 fc->crom_src_buf = (struct crom_src_buf *) 645 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 646 if (fc->crom_src_buf == NULL) 647 return; 648 649 src = &fc->crom_src_buf->src; 650 bzero(src, sizeof(struct crom_src)); 651 652 /* BUS info sample */ 653 src->hdr.info_len = 4; 654 655 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 656 657 src->businfo.irmc = 1; 658 src->businfo.cmc = 1; 659 src->businfo.isc = 1; 660 src->businfo.bmc = 1; 661 src->businfo.pmc = 0; 662 src->businfo.cyc_clk_acc = 100; 663 src->businfo.max_rec = fc->maxrec; 664 src->businfo.max_rom = MAXROM_4; 665 src->businfo.generation = 1; 666 src->businfo.link_spd = fc->speed; 667 668 src->businfo.eui64.hi = fc->eui.hi; 669 src->businfo.eui64.lo = fc->eui.lo; 670 671 STAILQ_INIT(&src->chunk_list); 672 673 fc->crom_src = src; 674 fc->crom_root = &fc->crom_src_buf->root; 675 } 676 677 static void 678 fw_reset_crom(struct firewire_comm *fc) 679 { 680 struct crom_src_buf *buf; 681 struct crom_src *src; 682 struct crom_chunk *root; 683 684 if (fc->crom_src_buf == NULL) 685 fw_init_crom(fc); 686 687 buf = fc->crom_src_buf; 688 src = fc->crom_src; 689 root = fc->crom_root; 690 691 STAILQ_INIT(&src->chunk_list); 692 693 bzero(root, sizeof(struct crom_chunk)); 694 crom_add_chunk(src, NULL, root, 0); 695 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 696 /* private company_id */ 697 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 698 #ifdef __DragonFly__ 699 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 700 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version); 701 #else 702 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 703 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 704 #endif 705 crom_add_simple_text(src, root, &buf->hw, hostname); 706 } 707 708 /* 709 * Called after bus reset. 710 */ 711 void 712 fw_busreset(struct firewire_comm *fc, uint32_t new_status) 713 { 714 struct firewire_dev_comm *fdc; 715 struct crom_src *src; 716 device_t *devlistp; 717 void *newrom; 718 int i, devcnt; 719 720 switch(fc->status){ 721 case FWBUSMGRELECT: 722 callout_stop(&fc->bmr_callout); 723 break; 724 default: 725 break; 726 } 727 fc->status = new_status; 728 fw_reset_csr(fc); 729 fw_reset_crom(fc); 730 731 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 732 for( i = 0 ; i < devcnt ; i++) 733 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 734 fdc = device_get_softc(devlistp[i]); 735 if (fdc->post_busreset != NULL) 736 fdc->post_busreset(fdc); 737 } 738 free(devlistp, M_TEMP); 739 } 740 741 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 742 src = &fc->crom_src_buf->src; 743 crom_load(src, (uint32_t *)newrom, CROMSIZE); 744 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 745 /* bump generation and reload */ 746 src->businfo.generation ++; 747 /* generation must be between 0x2 and 0xF */ 748 if (src->businfo.generation < 2) 749 src->businfo.generation ++; 750 crom_load(src, (uint32_t *)newrom, CROMSIZE); 751 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 752 } 753 free(newrom, M_FW); 754 } 755 756 /* Call once after reboot */ 757 void fw_init(struct firewire_comm *fc) 758 { 759 int i; 760 #ifdef FW_VMACCESS 761 struct fw_xfer *xfer; 762 struct fw_bind *fwb; 763 #endif 764 765 fc->arq->queued = 0; 766 fc->ars->queued = 0; 767 fc->atq->queued = 0; 768 fc->ats->queued = 0; 769 770 fc->arq->buf = NULL; 771 fc->ars->buf = NULL; 772 fc->atq->buf = NULL; 773 fc->ats->buf = NULL; 774 775 fc->arq->flag = 0; 776 fc->ars->flag = 0; 777 fc->atq->flag = 0; 778 fc->ats->flag = 0; 779 780 STAILQ_INIT(&fc->atq->q); 781 STAILQ_INIT(&fc->ats->q); 782 783 for( i = 0 ; i < fc->nisodma ; i ++ ){ 784 fc->it[i]->queued = 0; 785 fc->ir[i]->queued = 0; 786 787 fc->it[i]->start = NULL; 788 fc->ir[i]->start = NULL; 789 790 fc->it[i]->buf = NULL; 791 fc->ir[i]->buf = NULL; 792 793 fc->it[i]->flag = FWXFERQ_STREAM; 794 fc->ir[i]->flag = FWXFERQ_STREAM; 795 796 STAILQ_INIT(&fc->it[i]->q); 797 STAILQ_INIT(&fc->ir[i]->q); 798 } 799 800 fc->arq->maxq = FWMAXQUEUE; 801 fc->ars->maxq = FWMAXQUEUE; 802 fc->atq->maxq = FWMAXQUEUE; 803 fc->ats->maxq = FWMAXQUEUE; 804 805 for( i = 0 ; i < fc->nisodma ; i++){ 806 fc->ir[i]->maxq = FWMAXQUEUE; 807 fc->it[i]->maxq = FWMAXQUEUE; 808 } 809 /* Initialize csr registers */ 810 fc->topology_map = (struct fw_topology_map *)malloc( 811 sizeof(struct fw_topology_map), 812 M_FW, M_NOWAIT | M_ZERO); 813 fc->speed_map = (struct fw_speed_map *)malloc( 814 sizeof(struct fw_speed_map), 815 M_FW, M_NOWAIT | M_ZERO); 816 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 817 CSRARC(fc, TOPO_MAP + 4) = 1; 818 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 819 CSRARC(fc, SPED_MAP + 4) = 1; 820 821 STAILQ_INIT(&fc->devices); 822 823 /* Initialize Async handlers */ 824 STAILQ_INIT(&fc->binds); 825 for( i = 0 ; i < 0x40 ; i++){ 826 STAILQ_INIT(&fc->tlabels[i]); 827 } 828 829 /* DV depend CSRs see blue book */ 830 #if 0 831 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 832 CSRARC(fc, oPCR) = 0x8000007a; 833 for(i = 4 ; i < 0x7c/4 ; i+=4){ 834 CSRARC(fc, i + oPCR) = 0x8000007a; 835 } 836 837 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 838 CSRARC(fc, iPCR) = 0x803f0000; 839 for(i = 4 ; i < 0x7c/4 ; i+=4){ 840 CSRARC(fc, i + iPCR) = 0x0; 841 } 842 #endif 843 844 fc->crom_src_buf = NULL; 845 846 #ifdef FW_VMACCESS 847 xfer = fw_xfer_alloc(); 848 if(xfer == NULL) return; 849 850 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 851 if(fwb == NULL){ 852 fw_xfer_free(xfer); 853 return; 854 } 855 xfer->hand = fw_vmaccess; 856 xfer->fc = fc; 857 xfer->sc = NULL; 858 859 fwb->start_hi = 0x2; 860 fwb->start_lo = 0; 861 fwb->addrlen = 0xffffffff; 862 fwb->xfer = xfer; 863 fw_bindadd(fc, fwb); 864 #endif 865 } 866 867 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 868 ((fwb)->end < (addr))?1:0) 869 870 /* 871 * To lookup bound process from IEEE1394 address. 872 */ 873 struct fw_bind * 874 fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 875 { 876 u_int64_t addr; 877 struct fw_bind *tfw, *r = NULL; 878 879 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 880 FW_GLOCK(fc); 881 STAILQ_FOREACH(tfw, &fc->binds, fclist) 882 if (BIND_CMP(addr, tfw) == 0) { 883 r = tfw; 884 break; 885 } 886 FW_GUNLOCK(fc); 887 return(r); 888 } 889 890 /* 891 * To bind IEEE1394 address block to process. 892 */ 893 int 894 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 895 { 896 struct fw_bind *tfw, *prev = NULL; 897 int r = 0; 898 899 if (fwb->start > fwb->end) { 900 printf("%s: invalid range\n", __func__); 901 return EINVAL; 902 } 903 904 FW_GLOCK(fc); 905 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 906 if (fwb->end < tfw->start) 907 break; 908 prev = tfw; 909 } 910 if (prev == NULL) 911 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 912 else if (prev->end < fwb->start) 913 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 914 else { 915 printf("%s: bind failed\n", __func__); 916 r = EBUSY; 917 } 918 FW_GUNLOCK(fc); 919 return (r); 920 } 921 922 /* 923 * To free IEEE1394 address block. 924 */ 925 int 926 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 927 { 928 #if 0 929 struct fw_xfer *xfer, *next; 930 #endif 931 struct fw_bind *tfw; 932 int s; 933 934 s = splfw(); 935 FW_GLOCK(fc); 936 STAILQ_FOREACH(tfw, &fc->binds, fclist) 937 if (tfw == fwb) { 938 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 939 goto found; 940 } 941 942 printf("%s: no such binding\n", __func__); 943 FW_GUNLOCK(fc); 944 splx(s); 945 return (1); 946 found: 947 #if 0 948 /* shall we do this? */ 949 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 950 next = STAILQ_NEXT(xfer, link); 951 fw_xfer_free(xfer); 952 } 953 STAILQ_INIT(&fwb->xferlist); 954 #endif 955 FW_GUNLOCK(fc); 956 957 splx(s); 958 return 0; 959 } 960 961 int 962 fw_xferlist_add(struct fw_xferlist *q, struct malloc_type *type, 963 int slen, int rlen, int n, 964 struct firewire_comm *fc, void *sc, void (*hand)(struct fw_xfer *)) 965 { 966 int i, s; 967 struct fw_xfer *xfer; 968 969 for (i = 0; i < n; i++) { 970 xfer = fw_xfer_alloc_buf(type, slen, rlen); 971 if (xfer == NULL) 972 return (n); 973 xfer->fc = fc; 974 xfer->sc = sc; 975 xfer->hand = hand; 976 s = splfw(); 977 STAILQ_INSERT_TAIL(q, xfer, link); 978 splx(s); 979 } 980 return (n); 981 } 982 983 void 984 fw_xferlist_remove(struct fw_xferlist *q) 985 { 986 struct fw_xfer *xfer, *next; 987 988 for (xfer = STAILQ_FIRST(q); xfer != NULL; xfer = next) { 989 next = STAILQ_NEXT(xfer, link); 990 fw_xfer_free_buf(xfer); 991 } 992 STAILQ_INIT(q); 993 } 994 /* 995 * dump packet header 996 */ 997 static void 998 fw_dump_hdr(struct fw_pkt *fp, char *prefix) 999 { 1000 printf("%s: dst=0x%02x tl=0x%02x rt=%d tcode=0x%x pri=0x%x " 1001 "src=0x%03x\n", prefix, 1002 fp->mode.hdr.dst & 0x3f, 1003 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tlrt & 3, 1004 fp->mode.hdr.tcode, fp->mode.hdr.pri, 1005 fp->mode.hdr.src); 1006 } 1007 1008 /* 1009 * To free transaction label. 1010 */ 1011 static void 1012 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 1013 { 1014 struct fw_xfer *txfer; 1015 int s; 1016 1017 if (xfer->tl < 0) 1018 return; 1019 1020 s = splfw(); 1021 mtx_lock(&fc->tlabel_lock); 1022 #if 1 /* make sure the label is allocated */ 1023 STAILQ_FOREACH(txfer, &fc->tlabels[xfer->tl], tlabel) 1024 if(txfer == xfer) 1025 break; 1026 if (txfer == NULL) { 1027 printf("%s: the xfer is not in the queue " 1028 "(tlabel=%d, flag=0x%x)\n", 1029 __FUNCTION__, xfer->tl, xfer->flag); 1030 fw_dump_hdr(&xfer->send.hdr, "send"); 1031 fw_dump_hdr(&xfer->recv.hdr, "recv"); 1032 kdb_backtrace(); 1033 mtx_unlock(&fc->tlabel_lock); 1034 splx(s); 1035 return; 1036 } 1037 #endif 1038 1039 STAILQ_REMOVE(&fc->tlabels[xfer->tl], xfer, fw_xfer, tlabel); 1040 mtx_unlock(&fc->tlabel_lock); 1041 splx(s); 1042 return; 1043 } 1044 1045 /* 1046 * To obtain XFER structure by transaction label. 1047 */ 1048 static struct fw_xfer * 1049 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel, int tcode) 1050 { 1051 struct fw_xfer *xfer; 1052 int s = splfw(); 1053 int req; 1054 1055 mtx_lock(&fc->tlabel_lock); 1056 STAILQ_FOREACH(xfer, &fc->tlabels[tlabel], tlabel) 1057 if(xfer->send.hdr.mode.hdr.dst == node) { 1058 mtx_unlock(&fc->tlabel_lock); 1059 splx(s); 1060 KASSERT(xfer->tl == tlabel, 1061 ("xfer->tl 0x%x != 0x%x", xfer->tl, tlabel)); 1062 /* extra sanity check */ 1063 req = xfer->send.hdr.mode.hdr.tcode; 1064 if (xfer->fc->tcode[req].valid_res != tcode) { 1065 printf("%s: invalid response tcode " 1066 "(0x%x for 0x%x)\n", __FUNCTION__, 1067 tcode, req); 1068 return(NULL); 1069 } 1070 1071 if (firewire_debug > 2) 1072 printf("fw_tl2xfer: found tl=%d\n", tlabel); 1073 return(xfer); 1074 } 1075 mtx_unlock(&fc->tlabel_lock); 1076 if (firewire_debug > 1) 1077 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 1078 splx(s); 1079 return(NULL); 1080 } 1081 1082 /* 1083 * To allocate IEEE1394 XFER structure. 1084 */ 1085 struct fw_xfer * 1086 fw_xfer_alloc(struct malloc_type *type) 1087 { 1088 struct fw_xfer *xfer; 1089 1090 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 1091 if (xfer == NULL) 1092 return xfer; 1093 1094 xfer->malloc = type; 1095 1096 return xfer; 1097 } 1098 1099 struct fw_xfer * 1100 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 1101 { 1102 struct fw_xfer *xfer; 1103 1104 xfer = fw_xfer_alloc(type); 1105 if (xfer == NULL) 1106 return(NULL); 1107 xfer->send.pay_len = send_len; 1108 xfer->recv.pay_len = recv_len; 1109 if (send_len > 0) { 1110 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 1111 if (xfer->send.payload == NULL) { 1112 fw_xfer_free(xfer); 1113 return(NULL); 1114 } 1115 } 1116 if (recv_len > 0) { 1117 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 1118 if (xfer->recv.payload == NULL) { 1119 if (xfer->send.payload != NULL) 1120 free(xfer->send.payload, type); 1121 fw_xfer_free(xfer); 1122 return(NULL); 1123 } 1124 } 1125 return(xfer); 1126 } 1127 1128 /* 1129 * IEEE1394 XFER post process. 1130 */ 1131 void 1132 fw_xfer_done(struct fw_xfer *xfer) 1133 { 1134 if (xfer->hand == NULL) { 1135 printf("hand == NULL\n"); 1136 return; 1137 } 1138 1139 if (xfer->fc == NULL) 1140 panic("fw_xfer_done: why xfer->fc is NULL?"); 1141 1142 fw_tl_free(xfer->fc, xfer); 1143 xfer->hand(xfer); 1144 } 1145 1146 void 1147 fw_xfer_unload(struct fw_xfer* xfer) 1148 { 1149 int s; 1150 1151 if(xfer == NULL ) return; 1152 if(xfer->flag & FWXF_INQ){ 1153 printf("fw_xfer_free FWXF_INQ\n"); 1154 s = splfw(); 1155 FW_GLOCK(xfer->fc); 1156 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1157 #if 0 1158 xfer->q->queued --; 1159 #endif 1160 FW_GUNLOCK(xfer->fc); 1161 splx(s); 1162 } 1163 if (xfer->fc != NULL) { 1164 #if 1 1165 if(xfer->flag & FWXF_START) 1166 /* 1167 * This could happen if: 1168 * 1. We call fwohci_arcv() before fwohci_txd(). 1169 * 2. firewire_watch() is called. 1170 */ 1171 printf("fw_xfer_free FWXF_START\n"); 1172 #endif 1173 } 1174 xfer->flag = FWXF_INIT; 1175 xfer->resp = 0; 1176 } 1177 /* 1178 * To free IEEE1394 XFER structure. 1179 */ 1180 void 1181 fw_xfer_free_buf( struct fw_xfer* xfer) 1182 { 1183 if (xfer == NULL) { 1184 printf("%s: xfer == NULL\n", __func__); 1185 return; 1186 } 1187 fw_xfer_unload(xfer); 1188 if(xfer->send.payload != NULL){ 1189 free(xfer->send.payload, xfer->malloc); 1190 } 1191 if(xfer->recv.payload != NULL){ 1192 free(xfer->recv.payload, xfer->malloc); 1193 } 1194 free(xfer, xfer->malloc); 1195 } 1196 1197 void 1198 fw_xfer_free( struct fw_xfer* xfer) 1199 { 1200 if (xfer == NULL) { 1201 printf("%s: xfer == NULL\n", __func__); 1202 return; 1203 } 1204 fw_xfer_unload(xfer); 1205 free(xfer, xfer->malloc); 1206 } 1207 1208 void 1209 fw_asy_callback_free(struct fw_xfer *xfer) 1210 { 1211 #if 0 1212 printf("asyreq done flag=0x%02x resp=%d\n", 1213 xfer->flag, xfer->resp); 1214 #endif 1215 fw_xfer_free(xfer); 1216 } 1217 1218 /* 1219 * To configure PHY. 1220 */ 1221 static void 1222 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1223 { 1224 struct fw_xfer *xfer; 1225 struct fw_pkt *fp; 1226 1227 fc->status = FWBUSPHYCONF; 1228 1229 xfer = fw_xfer_alloc(M_FWXFER); 1230 if (xfer == NULL) 1231 return; 1232 xfer->fc = fc; 1233 xfer->hand = fw_asy_callback_free; 1234 1235 fp = &xfer->send.hdr; 1236 fp->mode.ld[1] = 0; 1237 if (root_node >= 0) 1238 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1239 if (gap_count >= 0) 1240 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1241 fp->mode.ld[2] = ~fp->mode.ld[1]; 1242 /* XXX Dangerous, how to pass PHY packet to device driver */ 1243 fp->mode.common.tcode |= FWTCODE_PHY; 1244 1245 if (firewire_debug) 1246 printf("send phy_config root_node=%d gap_count=%d\n", 1247 root_node, gap_count); 1248 fw_asyreq(fc, -1, xfer); 1249 } 1250 1251 #if 0 1252 /* 1253 * Dump self ID. 1254 */ 1255 static void 1256 fw_print_sid(uint32_t sid) 1257 { 1258 union fw_self_id *s; 1259 s = (union fw_self_id *) &sid; 1260 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1261 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1262 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1263 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1264 s->p0.power_class, s->p0.port0, s->p0.port1, 1265 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1266 } 1267 #endif 1268 1269 /* 1270 * To receive self ID. 1271 */ 1272 void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1273 { 1274 uint32_t *p; 1275 union fw_self_id *self_id; 1276 u_int i, j, node, c_port = 0, i_branch = 0; 1277 1278 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1279 fc->max_node = fc->nodeid & 0x3f; 1280 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1281 fc->status = FWBUSCYMELECT; 1282 fc->topology_map->crc_len = 2; 1283 fc->topology_map->generation ++; 1284 fc->topology_map->self_id_count = 0; 1285 fc->topology_map->node_count = 0; 1286 fc->speed_map->generation ++; 1287 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1288 self_id = &fc->topology_map->self_id[0]; 1289 for(i = 0; i < fc->sid_cnt; i ++){ 1290 if (sid[1] != ~sid[0]) { 1291 printf("fw_sidrcv: invalid self-id packet\n"); 1292 sid += 2; 1293 continue; 1294 } 1295 *self_id = *((union fw_self_id *)sid); 1296 fc->topology_map->crc_len++; 1297 if(self_id->p0.sequel == 0){ 1298 fc->topology_map->node_count ++; 1299 c_port = 0; 1300 #if 0 1301 fw_print_sid(sid[0]); 1302 #endif 1303 node = self_id->p0.phy_id; 1304 if(fc->max_node < node){ 1305 fc->max_node = self_id->p0.phy_id; 1306 } 1307 /* XXX I'm not sure this is the right speed_map */ 1308 fc->speed_map->speed[node][node] 1309 = self_id->p0.phy_speed; 1310 for (j = 0; j < node; j ++) { 1311 fc->speed_map->speed[j][node] 1312 = fc->speed_map->speed[node][j] 1313 = min(fc->speed_map->speed[j][j], 1314 self_id->p0.phy_speed); 1315 } 1316 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1317 (self_id->p0.link_active && self_id->p0.contender)) { 1318 fc->irm = self_id->p0.phy_id; 1319 } 1320 if(self_id->p0.port0 >= 0x2){ 1321 c_port++; 1322 } 1323 if(self_id->p0.port1 >= 0x2){ 1324 c_port++; 1325 } 1326 if(self_id->p0.port2 >= 0x2){ 1327 c_port++; 1328 } 1329 } 1330 if(c_port > 2){ 1331 i_branch += (c_port - 2); 1332 } 1333 sid += 2; 1334 self_id++; 1335 fc->topology_map->self_id_count ++; 1336 } 1337 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1338 /* CRC */ 1339 fc->topology_map->crc = fw_crc16( 1340 (uint32_t *)&fc->topology_map->generation, 1341 fc->topology_map->crc_len * 4); 1342 fc->speed_map->crc = fw_crc16( 1343 (uint32_t *)&fc->speed_map->generation, 1344 fc->speed_map->crc_len * 4); 1345 /* byteswap and copy to CSR */ 1346 p = (uint32_t *)fc->topology_map; 1347 for (i = 0; i <= fc->topology_map->crc_len; i++) 1348 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1349 p = (uint32_t *)fc->speed_map; 1350 CSRARC(fc, SPED_MAP) = htonl(*p++); 1351 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1352 /* don't byte-swap uint8_t array */ 1353 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1354 1355 fc->max_hop = fc->max_node - i_branch; 1356 printf(", maxhop <= %d", fc->max_hop); 1357 1358 if(fc->irm == -1 ){ 1359 printf(", Not found IRM capable node"); 1360 }else{ 1361 printf(", cable IRM = %d", fc->irm); 1362 if (fc->irm == fc->nodeid) 1363 printf(" (me)"); 1364 } 1365 printf("\n"); 1366 1367 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1368 if (fc->irm == fc->nodeid) { 1369 fc->status = FWBUSMGRDONE; 1370 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1371 fw_bmr(fc); 1372 } else { 1373 fc->status = FWBUSMGRELECT; 1374 callout_reset(&fc->bmr_callout, hz/8, 1375 (void *)fw_try_bmr, (void *)fc); 1376 } 1377 } else 1378 fc->status = FWBUSMGRDONE; 1379 1380 callout_reset(&fc->busprobe_callout, hz/4, 1381 (void *)fw_bus_probe, (void *)fc); 1382 } 1383 1384 /* 1385 * To probe devices on the IEEE1394 bus. 1386 */ 1387 static void 1388 fw_bus_probe(struct firewire_comm *fc) 1389 { 1390 int s; 1391 struct fw_device *fwdev; 1392 1393 s = splfw(); 1394 fc->status = FWBUSEXPLORE; 1395 1396 /* Invalidate all devices, just after bus reset. */ 1397 STAILQ_FOREACH(fwdev, &fc->devices, link) 1398 if (fwdev->status != FWDEVINVAL) { 1399 fwdev->status = FWDEVINVAL; 1400 fwdev->rcnt = 0; 1401 } 1402 splx(s); 1403 1404 wakeup((void *)fc); 1405 } 1406 1407 static int 1408 fw_explore_read_quads(struct fw_device *fwdev, int offset, 1409 uint32_t *quad, int n) 1410 { 1411 struct fw_xfer *xfer; 1412 uint32_t tmp; 1413 int i, error; 1414 1415 for (i = 0; i < n; i ++, offset += sizeof(uint32_t)) { 1416 xfer = fwmem_read_quad(fwdev, NULL, -1, 1417 0xffff, 0xf0000000 | offset, (void *)&tmp, 1418 fw_xferwake); 1419 if (xfer == NULL) 1420 return (-1); 1421 fw_xferwait(xfer); 1422 1423 if (xfer->resp == 0) 1424 quad[i] = ntohl(tmp); 1425 1426 error = xfer->resp; 1427 fw_xfer_free(xfer); 1428 if (error) 1429 return (error); 1430 } 1431 return (0); 1432 } 1433 1434 1435 static int 1436 fw_explore_csrblock(struct fw_device *fwdev, int offset, int recur) 1437 { 1438 int err, i, off; 1439 struct csrdirectory *dir; 1440 struct csrreg *reg; 1441 1442 dir = (struct csrdirectory *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1443 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1444 (uint32_t *)dir, 1); 1445 if (err) 1446 return (-1); 1447 1448 offset += sizeof(uint32_t); 1449 reg = (struct csrreg *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1450 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1451 (uint32_t *)reg, dir->crc_len); 1452 if (err) 1453 return (-1); 1454 1455 /* XXX check CRC */ 1456 1457 off = CSRROMOFF + offset + sizeof(uint32_t) * (dir->crc_len - 1); 1458 if (fwdev->rommax < off) 1459 fwdev->rommax = off; 1460 1461 if (recur == 0) 1462 return (0); 1463 1464 for (i = 0; i < dir->crc_len; i ++, offset += sizeof(uint32_t)) { 1465 if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_D) 1466 recur = 1; 1467 else if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_L) 1468 recur = 0; 1469 else 1470 continue; 1471 1472 off = offset + reg[i].val * sizeof(uint32_t); 1473 if (off > CROMSIZE) { 1474 printf("%s: invalid offset %d\n", __FUNCTION__, off); 1475 return(-1); 1476 } 1477 err = fw_explore_csrblock(fwdev, off, recur); 1478 if (err) 1479 return (-1); 1480 } 1481 return (0); 1482 } 1483 1484 static int 1485 fw_explore_node(struct fw_device *dfwdev) 1486 { 1487 struct firewire_comm *fc; 1488 struct fw_device *fwdev, *pfwdev, *tfwdev; 1489 uint32_t *csr; 1490 struct csrhdr *hdr; 1491 struct bus_info *binfo; 1492 int err, node, spd; 1493 1494 fc = dfwdev->fc; 1495 csr = dfwdev->csrrom; 1496 node = dfwdev->dst; 1497 1498 /* First quad */ 1499 err = fw_explore_read_quads(dfwdev, CSRROMOFF, &csr[0], 1); 1500 if (err) 1501 return (-1); 1502 hdr = (struct csrhdr *)&csr[0]; 1503 if (hdr->info_len != 4) { 1504 if (firewire_debug) 1505 printf("node%d: wrong bus info len(%d)\n", 1506 node, hdr->info_len); 1507 return (-1); 1508 } 1509 1510 /* bus info */ 1511 err = fw_explore_read_quads(dfwdev, CSRROMOFF + 0x04, &csr[1], 4); 1512 if (err) 1513 return (-1); 1514 binfo = (struct bus_info *)&csr[1]; 1515 if (binfo->bus_name != CSR_BUS_NAME_IEEE1394) { 1516 if (firewire_debug) 1517 printf("node%d: invalid bus name 0x%08x\n", 1518 node, binfo->bus_name); 1519 return (-1); 1520 } 1521 spd = fc->speed_map->speed[fc->nodeid][node]; 1522 STAILQ_FOREACH(fwdev, &fc->devices, link) 1523 if (FW_EUI64_EQUAL(fwdev->eui, binfo->eui64)) 1524 break; 1525 if (fwdev == NULL) { 1526 /* new device */ 1527 fwdev = malloc(sizeof(struct fw_device), M_FW, 1528 M_NOWAIT | M_ZERO); 1529 if (fwdev == NULL) { 1530 if (firewire_debug) 1531 printf("node%d: no memory\n", node); 1532 return (-1); 1533 } 1534 fwdev->fc = fc; 1535 fwdev->eui = binfo->eui64; 1536 /* inesrt into sorted fwdev list */ 1537 pfwdev = NULL; 1538 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1539 if (tfwdev->eui.hi > fwdev->eui.hi || 1540 (tfwdev->eui.hi == fwdev->eui.hi && 1541 tfwdev->eui.lo > fwdev->eui.lo)) 1542 break; 1543 pfwdev = tfwdev; 1544 } 1545 if (pfwdev == NULL) 1546 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1547 else 1548 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1549 1550 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1551 linkspeed[spd], 1552 fwdev->eui.hi, fwdev->eui.lo); 1553 } 1554 fwdev->dst = node; 1555 fwdev->status = FWDEVINIT; 1556 fwdev->speed = spd; 1557 1558 /* unchanged ? */ 1559 if (bcmp(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5) == 0) { 1560 if (firewire_debug) 1561 printf("node%d: crom unchanged\n", node); 1562 return (0); 1563 } 1564 1565 bzero(&fwdev->csrrom[0], CROMSIZE); 1566 1567 /* copy first quad and bus info block */ 1568 bcopy(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5); 1569 fwdev->rommax = CSRROMOFF + sizeof(uint32_t) * 4; 1570 1571 err = fw_explore_csrblock(fwdev, 0x14, 1); /* root directory */ 1572 1573 if (err) { 1574 fwdev->status = FWDEVINVAL; 1575 fwdev->csrrom[0] = 0; 1576 } 1577 return (err); 1578 1579 } 1580 1581 /* 1582 * Find the self_id packet for a node, ignoring sequels. 1583 */ 1584 static union fw_self_id * 1585 fw_find_self_id(struct firewire_comm *fc, int node) 1586 { 1587 uint32_t i; 1588 union fw_self_id *s; 1589 1590 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1591 s = &fc->topology_map->self_id[i]; 1592 if (s->p0.sequel) 1593 continue; 1594 if (s->p0.phy_id == node) 1595 return s; 1596 } 1597 return 0; 1598 } 1599 1600 static void 1601 fw_explore(struct firewire_comm *fc) 1602 { 1603 int node, err, s, i, todo, todo2, trys; 1604 char nodes[63]; 1605 struct fw_device dfwdev; 1606 union fw_self_id *fwsid; 1607 1608 todo = 0; 1609 /* setup dummy fwdev */ 1610 dfwdev.fc = fc; 1611 dfwdev.speed = 0; 1612 dfwdev.maxrec = 8; /* 512 */ 1613 dfwdev.status = FWDEVINIT; 1614 1615 for (node = 0; node <= fc->max_node; node ++) { 1616 /* We don't probe myself and linkdown nodes */ 1617 if (node == fc->nodeid) 1618 continue; 1619 fwsid = fw_find_self_id(fc, node); 1620 if (!fwsid || !fwsid->p0.link_active) { 1621 if (firewire_debug) 1622 printf("node%d: link down\n", node); 1623 continue; 1624 } 1625 nodes[todo++] = node; 1626 } 1627 1628 s = splfw(); 1629 for (trys = 0; todo > 0 && trys < 3; trys ++) { 1630 todo2 = 0; 1631 for (i = 0; i < todo; i ++) { 1632 dfwdev.dst = nodes[i]; 1633 err = fw_explore_node(&dfwdev); 1634 if (err) 1635 nodes[todo2++] = nodes[i]; 1636 if (firewire_debug) 1637 printf("%s: node %d, err = %d\n", 1638 __FUNCTION__, node, err); 1639 } 1640 todo = todo2; 1641 } 1642 splx(s); 1643 } 1644 1645 1646 static void 1647 fw_bus_probe_thread(void *arg) 1648 { 1649 struct firewire_comm *fc; 1650 1651 fc = (struct firewire_comm *)arg; 1652 1653 mtx_lock(&fc->wait_lock); 1654 while (fc->status != FWBUSDETACH) { 1655 if (fc->status == FWBUSEXPLORE) { 1656 mtx_unlock(&fc->wait_lock); 1657 fw_explore(fc); 1658 fc->status = FWBUSEXPDONE; 1659 if (firewire_debug) 1660 printf("bus_explore done\n"); 1661 fw_attach_dev(fc); 1662 mtx_lock(&fc->wait_lock); 1663 } 1664 msleep((void *)fc, &fc->wait_lock, PWAIT|PCATCH, "-", 0); 1665 } 1666 mtx_unlock(&fc->wait_lock); 1667 kproc_exit(0); 1668 } 1669 1670 /* 1671 * To attach sub-devices layer onto IEEE1394 bus. 1672 */ 1673 static void 1674 fw_attach_dev(struct firewire_comm *fc) 1675 { 1676 struct fw_device *fwdev, *next; 1677 int i, err; 1678 device_t *devlistp; 1679 int devcnt; 1680 struct firewire_dev_comm *fdc; 1681 1682 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1683 next = STAILQ_NEXT(fwdev, link); 1684 if (fwdev->status == FWDEVINIT) { 1685 fwdev->status = FWDEVATTACHED; 1686 } else if (fwdev->status == FWDEVINVAL) { 1687 fwdev->rcnt ++; 1688 if (fwdev->rcnt > hold_count) { 1689 /* 1690 * Remove devices which have not been seen 1691 * for a while. 1692 */ 1693 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1694 link); 1695 free(fwdev, M_FW); 1696 } 1697 } 1698 } 1699 1700 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1701 if( err != 0 ) 1702 return; 1703 for( i = 0 ; i < devcnt ; i++){ 1704 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1705 fdc = device_get_softc(devlistp[i]); 1706 if (fdc->post_explore != NULL) 1707 fdc->post_explore(fdc); 1708 } 1709 } 1710 free(devlistp, M_TEMP); 1711 1712 return; 1713 } 1714 1715 /* 1716 * To allocate unique transaction label. 1717 */ 1718 static int 1719 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1720 { 1721 u_int dst, new_tlabel; 1722 struct fw_xfer *txfer; 1723 int s; 1724 1725 dst = xfer->send.hdr.mode.hdr.dst & 0x3f; 1726 s = splfw(); 1727 mtx_lock(&fc->tlabel_lock); 1728 new_tlabel = (fc->last_tlabel[dst] + 1) & 0x3f; 1729 STAILQ_FOREACH(txfer, &fc->tlabels[new_tlabel], tlabel) 1730 if ((txfer->send.hdr.mode.hdr.dst & 0x3f) == dst) 1731 break; 1732 if(txfer == NULL) { 1733 fc->last_tlabel[dst] = new_tlabel; 1734 STAILQ_INSERT_TAIL(&fc->tlabels[new_tlabel], xfer, tlabel); 1735 mtx_unlock(&fc->tlabel_lock); 1736 splx(s); 1737 xfer->tl = new_tlabel; 1738 xfer->send.hdr.mode.hdr.tlrt = new_tlabel << 2; 1739 if (firewire_debug > 1) 1740 printf("fw_get_tlabel: dst=%d tl=%d\n", dst, new_tlabel); 1741 return (new_tlabel); 1742 } 1743 mtx_unlock(&fc->tlabel_lock); 1744 splx(s); 1745 1746 if (firewire_debug > 1) 1747 printf("fw_get_tlabel: no free tlabel\n"); 1748 return (-1); 1749 } 1750 1751 static void 1752 fw_rcv_copy(struct fw_rcv_buf *rb) 1753 { 1754 struct fw_pkt *pkt; 1755 u_char *p; 1756 struct tcode_info *tinfo; 1757 u_int res, i, len, plen; 1758 1759 rb->xfer->recv.spd = rb->spd; 1760 1761 pkt = (struct fw_pkt *)rb->vec->iov_base; 1762 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1763 1764 /* Copy header */ 1765 p = (u_char *)&rb->xfer->recv.hdr; 1766 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1767 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1768 rb->vec->iov_len -= tinfo->hdr_len; 1769 1770 /* Copy payload */ 1771 p = (u_char *)rb->xfer->recv.payload; 1772 res = rb->xfer->recv.pay_len; 1773 1774 /* special handling for RRESQ */ 1775 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1776 p != NULL && res >= sizeof(uint32_t)) { 1777 *(uint32_t *)p = pkt->mode.rresq.data; 1778 rb->xfer->recv.pay_len = sizeof(uint32_t); 1779 return; 1780 } 1781 1782 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1783 return; 1784 1785 plen = pkt->mode.rresb.len; 1786 1787 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1788 len = MIN(rb->vec->iov_len, plen); 1789 if (res < len) { 1790 printf("rcv buffer(%d) is %d bytes short.\n", 1791 rb->xfer->recv.pay_len, len - res); 1792 len = res; 1793 } 1794 bcopy(rb->vec->iov_base, p, len); 1795 p += len; 1796 res -= len; 1797 plen -= len; 1798 if (res == 0 || plen == 0) 1799 break; 1800 } 1801 rb->xfer->recv.pay_len -= res; 1802 1803 } 1804 1805 /* 1806 * Generic packet receiving process. 1807 */ 1808 void 1809 fw_rcv(struct fw_rcv_buf *rb) 1810 { 1811 struct fw_pkt *fp, *resfp; 1812 struct fw_bind *bind; 1813 int tcode; 1814 int i, len, oldstate; 1815 #if 0 1816 { 1817 uint32_t *qld; 1818 int i; 1819 qld = (uint32_t *)buf; 1820 printf("spd %d len:%d\n", spd, len); 1821 for( i = 0 ; i <= len && i < 32; i+= 4){ 1822 printf("0x%08x ", ntohl(qld[i/4])); 1823 if((i % 16) == 15) printf("\n"); 1824 } 1825 if((i % 16) != 15) printf("\n"); 1826 } 1827 #endif 1828 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1829 tcode = fp->mode.common.tcode; 1830 switch (tcode) { 1831 case FWTCODE_WRES: 1832 case FWTCODE_RRESQ: 1833 case FWTCODE_RRESB: 1834 case FWTCODE_LRES: 1835 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1836 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tcode); 1837 if(rb->xfer == NULL) { 1838 printf("fw_rcv: unknown response " 1839 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1840 tcode_str[tcode], tcode, 1841 fp->mode.hdr.src, 1842 fp->mode.hdr.tlrt >> 2, 1843 fp->mode.hdr.tlrt & 3, 1844 fp->mode.rresq.data); 1845 #if 0 1846 printf("try ad-hoc work around!!\n"); 1847 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1848 (fp->mode.hdr.tlrt >> 2)^3); 1849 if (rb->xfer == NULL) { 1850 printf("no use...\n"); 1851 return; 1852 } 1853 #else 1854 return; 1855 #endif 1856 } 1857 fw_rcv_copy(rb); 1858 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1859 rb->xfer->resp = EIO; 1860 else 1861 rb->xfer->resp = 0; 1862 /* make sure the packet is drained in AT queue */ 1863 oldstate = rb->xfer->flag; 1864 rb->xfer->flag = FWXF_RCVD; 1865 switch (oldstate) { 1866 case FWXF_SENT: 1867 fw_xfer_done(rb->xfer); 1868 break; 1869 case FWXF_START: 1870 #if 0 1871 if (firewire_debug) 1872 printf("not sent yet tl=%x\n", rb->xfer->tl); 1873 #endif 1874 break; 1875 default: 1876 printf("unexpected flag 0x%02x\n", rb->xfer->flag); 1877 } 1878 return; 1879 case FWTCODE_WREQQ: 1880 case FWTCODE_WREQB: 1881 case FWTCODE_RREQQ: 1882 case FWTCODE_RREQB: 1883 case FWTCODE_LREQ: 1884 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1885 fp->mode.rreqq.dest_lo); 1886 if(bind == NULL){ 1887 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1888 #if defined(__DragonFly__) || __FreeBSD_version < 500000 1889 " src=0x%x data=%lx\n", 1890 #else 1891 " src=0x%x data=%x\n", 1892 #endif 1893 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1894 tcode_str[tcode], tcode, 1895 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1896 if (rb->fc->status == FWBUSINIT) { 1897 printf("fw_rcv: cannot respond(bus reset)!\n"); 1898 return; 1899 } 1900 rb->xfer = fw_xfer_alloc(M_FWXFER); 1901 if(rb->xfer == NULL){ 1902 return; 1903 } 1904 rb->xfer->send.spd = rb->spd; 1905 rb->xfer->send.pay_len = 0; 1906 resfp = &rb->xfer->send.hdr; 1907 switch (tcode) { 1908 case FWTCODE_WREQQ: 1909 case FWTCODE_WREQB: 1910 resfp->mode.hdr.tcode = FWTCODE_WRES; 1911 break; 1912 case FWTCODE_RREQQ: 1913 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1914 break; 1915 case FWTCODE_RREQB: 1916 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1917 break; 1918 case FWTCODE_LREQ: 1919 resfp->mode.hdr.tcode = FWTCODE_LRES; 1920 break; 1921 } 1922 resfp->mode.hdr.dst = fp->mode.hdr.src; 1923 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1924 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1925 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1926 resfp->mode.rresb.extcode = 0; 1927 resfp->mode.rresb.len = 0; 1928 /* 1929 rb->xfer->hand = fw_xferwake; 1930 */ 1931 rb->xfer->hand = fw_xfer_free; 1932 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1933 fw_xfer_free(rb->xfer); 1934 return; 1935 } 1936 return; 1937 } 1938 len = 0; 1939 for (i = 0; i < rb->nvec; i ++) 1940 len += rb->vec[i].iov_len; 1941 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1942 if (rb->xfer == NULL) { 1943 #if 1 1944 printf("Discard a packet for this bind.\n"); 1945 #endif 1946 return; 1947 } 1948 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1949 fw_rcv_copy(rb); 1950 rb->xfer->hand(rb->xfer); 1951 return; 1952 #if 0 /* shouldn't happen ?? or for GASP */ 1953 case FWTCODE_STREAM: 1954 { 1955 struct fw_xferq *xferq; 1956 1957 xferq = rb->fc->ir[sub]; 1958 #if 0 1959 printf("stream rcv dma %d len %d off %d spd %d\n", 1960 sub, len, off, spd); 1961 #endif 1962 if(xferq->queued >= xferq->maxq) { 1963 printf("receive queue is full\n"); 1964 return; 1965 } 1966 /* XXX get xfer from xfer queue, we don't need copy for 1967 per packet mode */ 1968 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1969 vec[0].iov_len); 1970 if (rb->xfer == NULL) 1971 return; 1972 fw_rcv_copy(rb) 1973 s = splfw(); 1974 xferq->queued++; 1975 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1976 splx(s); 1977 sc = device_get_softc(rb->fc->bdev); 1978 #if defined(__DragonFly__) || __FreeBSD_version < 500000 1979 if (&xferq->rsel.si_pid != 0) 1980 #else 1981 if (SEL_WAITING(&xferq->rsel)) 1982 #endif 1983 selwakeuppri(&xferq->rsel, FWPRI); 1984 if (xferq->flag & FWXFERQ_WAKEUP) { 1985 xferq->flag &= ~FWXFERQ_WAKEUP; 1986 wakeup((caddr_t)xferq); 1987 } 1988 if (xferq->flag & FWXFERQ_HANDLER) { 1989 xferq->hand(xferq); 1990 } 1991 return; 1992 break; 1993 } 1994 #endif 1995 default: 1996 printf("fw_rcv: unknow tcode %d\n", tcode); 1997 break; 1998 } 1999 } 2000 2001 /* 2002 * Post process for Bus Manager election process. 2003 */ 2004 static void 2005 fw_try_bmr_callback(struct fw_xfer *xfer) 2006 { 2007 struct firewire_comm *fc; 2008 int bmr; 2009 2010 if (xfer == NULL) 2011 return; 2012 fc = xfer->fc; 2013 if (xfer->resp != 0) 2014 goto error; 2015 if (xfer->recv.payload == NULL) 2016 goto error; 2017 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2018 goto error; 2019 2020 bmr = ntohl(xfer->recv.payload[0]); 2021 if (bmr == 0x3f) 2022 bmr = fc->nodeid; 2023 2024 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2025 fw_xfer_free_buf(xfer); 2026 fw_bmr(fc); 2027 return; 2028 2029 error: 2030 device_printf(fc->bdev, "bus manager election failed\n"); 2031 fw_xfer_free_buf(xfer); 2032 } 2033 2034 2035 /* 2036 * To candidate Bus Manager election process. 2037 */ 2038 static void 2039 fw_try_bmr(void *arg) 2040 { 2041 struct fw_xfer *xfer; 2042 struct firewire_comm *fc = (struct firewire_comm *)arg; 2043 struct fw_pkt *fp; 2044 int err = 0; 2045 2046 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2047 if(xfer == NULL){ 2048 return; 2049 } 2050 xfer->send.spd = 0; 2051 fc->status = FWBUSMGRELECT; 2052 2053 fp = &xfer->send.hdr; 2054 fp->mode.lreq.dest_hi = 0xffff; 2055 fp->mode.lreq.tlrt = 0; 2056 fp->mode.lreq.tcode = FWTCODE_LREQ; 2057 fp->mode.lreq.pri = 0; 2058 fp->mode.lreq.src = 0; 2059 fp->mode.lreq.len = 8; 2060 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2061 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2062 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2063 xfer->send.payload[0] = htonl(0x3f); 2064 xfer->send.payload[1] = htonl(fc->nodeid); 2065 xfer->hand = fw_try_bmr_callback; 2066 2067 err = fw_asyreq(fc, -1, xfer); 2068 if(err){ 2069 fw_xfer_free_buf(xfer); 2070 return; 2071 } 2072 return; 2073 } 2074 2075 #ifdef FW_VMACCESS 2076 /* 2077 * Software implementation for physical memory block access. 2078 * XXX:Too slow, usef for debug purpose only. 2079 */ 2080 static void 2081 fw_vmaccess(struct fw_xfer *xfer){ 2082 struct fw_pkt *rfp, *sfp = NULL; 2083 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2084 2085 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2086 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2087 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2088 if(xfer->resp != 0){ 2089 fw_xfer_free( xfer); 2090 return; 2091 } 2092 if(xfer->recv.buf == NULL){ 2093 fw_xfer_free( xfer); 2094 return; 2095 } 2096 rfp = (struct fw_pkt *)xfer->recv.buf; 2097 switch(rfp->mode.hdr.tcode){ 2098 /* XXX need fix for 64bit arch */ 2099 case FWTCODE_WREQB: 2100 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2101 xfer->send.len = 12; 2102 sfp = (struct fw_pkt *)xfer->send.buf; 2103 bcopy(rfp->mode.wreqb.payload, 2104 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2105 sfp->mode.wres.tcode = FWTCODE_WRES; 2106 sfp->mode.wres.rtcode = 0; 2107 break; 2108 case FWTCODE_WREQQ: 2109 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2110 xfer->send.len = 12; 2111 sfp->mode.wres.tcode = FWTCODE_WRES; 2112 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2113 sfp->mode.wres.rtcode = 0; 2114 break; 2115 case FWTCODE_RREQB: 2116 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2117 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2118 sfp = (struct fw_pkt *)xfer->send.buf; 2119 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2120 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2121 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2122 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2123 sfp->mode.rresb.rtcode = 0; 2124 sfp->mode.rresb.extcode = 0; 2125 break; 2126 case FWTCODE_RREQQ: 2127 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2128 xfer->send.len = 16; 2129 sfp = (struct fw_pkt *)xfer->send.buf; 2130 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2131 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2132 sfp->mode.rresb.rtcode = 0; 2133 break; 2134 default: 2135 fw_xfer_free( xfer); 2136 return; 2137 } 2138 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2139 xfer->dst = ntohs(rfp->mode.hdr.src); 2140 xfer->hand = fw_xfer_free; 2141 2142 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2143 sfp->mode.hdr.pri = 0; 2144 2145 fw_asyreq(xfer->fc, -1, xfer); 2146 /**/ 2147 return; 2148 } 2149 #endif 2150 2151 /* 2152 * CRC16 check-sum for IEEE1394 register blocks. 2153 */ 2154 uint16_t 2155 fw_crc16(uint32_t *ptr, uint32_t len){ 2156 uint32_t i, sum, crc = 0; 2157 int shift; 2158 len = (len + 3) & ~3; 2159 for(i = 0 ; i < len ; i+= 4){ 2160 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2161 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2162 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2163 } 2164 crc &= 0xffff; 2165 } 2166 return((uint16_t) crc); 2167 } 2168 2169 static int 2170 fw_bmr(struct firewire_comm *fc) 2171 { 2172 struct fw_device fwdev; 2173 union fw_self_id *self_id; 2174 int cmstr; 2175 uint32_t quad; 2176 2177 /* Check to see if the current root node is cycle master capable */ 2178 self_id = fw_find_self_id(fc, fc->max_node); 2179 if (fc->max_node > 0) { 2180 /* XXX check cmc bit of businfo block rather than contender */ 2181 if (self_id->p0.link_active && self_id->p0.contender) 2182 cmstr = fc->max_node; 2183 else { 2184 device_printf(fc->bdev, 2185 "root node is not cycle master capable\n"); 2186 /* XXX shall we be the cycle master? */ 2187 cmstr = fc->nodeid; 2188 /* XXX need bus reset */ 2189 } 2190 } else 2191 cmstr = -1; 2192 2193 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2194 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2195 /* We are not the bus manager */ 2196 printf("\n"); 2197 return(0); 2198 } 2199 printf("(me)\n"); 2200 2201 /* Optimize gapcount */ 2202 if(fc->max_hop <= MAX_GAPHOP ) 2203 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2204 /* If we are the cycle master, nothing to do */ 2205 if (cmstr == fc->nodeid || cmstr == -1) 2206 return 0; 2207 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2208 bzero(&fwdev, sizeof(fwdev)); 2209 fwdev.fc = fc; 2210 fwdev.dst = cmstr; 2211 fwdev.speed = 0; 2212 fwdev.maxrec = 8; /* 512 */ 2213 fwdev.status = FWDEVINIT; 2214 /* Set cmstr bit on the cycle master */ 2215 quad = htonl(1 << 8); 2216 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2217 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2218 2219 return 0; 2220 } 2221 2222 int 2223 fw_open_isodma(struct firewire_comm *fc, int tx) 2224 { 2225 struct fw_xferq **xferqa; 2226 struct fw_xferq *xferq; 2227 int i; 2228 2229 if (tx) 2230 xferqa = &fc->it[0]; 2231 else 2232 xferqa = &fc->ir[0]; 2233 2234 FW_GLOCK(fc); 2235 for (i = 0; i < fc->nisodma; i ++) { 2236 xferq = xferqa[i]; 2237 if ((xferq->flag & FWXFERQ_OPEN) == 0) { 2238 xferq->flag |= FWXFERQ_OPEN; 2239 break; 2240 } 2241 } 2242 if (i == fc->nisodma) { 2243 printf("no free dma channel (tx=%d)\n", tx); 2244 i = -1; 2245 } 2246 FW_GUNLOCK(fc); 2247 return (i); 2248 } 2249 2250 static int 2251 fw_modevent(module_t mode, int type, void *data) 2252 { 2253 int err = 0; 2254 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2255 static eventhandler_tag fwdev_ehtag = NULL; 2256 #endif 2257 2258 switch (type) { 2259 case MOD_LOAD: 2260 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2261 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2262 fwdev_clone, 0, 1000); 2263 #endif 2264 break; 2265 case MOD_UNLOAD: 2266 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2267 if (fwdev_ehtag != NULL) 2268 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2269 #endif 2270 break; 2271 case MOD_SHUTDOWN: 2272 break; 2273 default: 2274 return (EOPNOTSUPP); 2275 } 2276 return (err); 2277 } 2278 2279 2280 #ifdef __DragonFly__ 2281 DECLARE_DUMMY_MODULE(firewire); 2282 #endif 2283 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2284 MODULE_VERSION(firewire, 1); 2285