Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/dev/firewire/firewire.c
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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 35 #include <sys/cdefs.h> 36 __FBSDID("$FreeBSD: releng/8.4/sys/dev/firewire/firewire.c 230714 2012-01-29 01:22:48Z marius $"); 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/types.h> 41 42 #include <sys/jail.h> 43 #include <sys/kernel.h> 44 #include <sys/module.h> 45 #include <sys/malloc.h> 46 #include <sys/conf.h> 47 #include <sys/sysctl.h> 48 #include <sys/kthread.h> 49 50 #include <sys/kdb.h> 51 52 #if defined(__DragonFly__) || __FreeBSD_version < 500000 53 #include <machine/clock.h> /* for DELAY() */ 54 #endif 55 56 #include <sys/bus.h> /* used by smbus and newbus */ 57 #include <machine/bus.h> 58 59 #ifdef __DragonFly__ 60 #include "firewire.h" 61 #include "firewirereg.h" 62 #include "fwmem.h" 63 #include "iec13213.h" 64 #include "iec68113.h" 65 #else 66 #include <dev/firewire/firewire.h> 67 #include <dev/firewire/firewirereg.h> 68 #include <dev/firewire/fwmem.h> 69 #include <dev/firewire/iec13213.h> 70 #include <dev/firewire/iec68113.h> 71 #endif 72 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=0; 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, u_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), 131 132 DEVMETHOD_END 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 fc->crom_src_buf = (struct crom_src_buf *)malloc( 433 sizeof(struct crom_src_buf), 434 M_FW, M_NOWAIT | M_ZERO); 435 if (fc->crom_src_buf == NULL) { 436 device_printf(fc->dev, "%s: Malloc Failure crom src buff\n", __func__); 437 return ENOMEM; 438 } 439 fc->topology_map = (struct fw_topology_map *)malloc( 440 sizeof(struct fw_topology_map), 441 M_FW, M_NOWAIT | M_ZERO); 442 if (fc->topology_map == NULL) { 443 device_printf(fc->dev, "%s: Malloc Failure topology map\n", __func__); 444 free(fc->crom_src_buf, M_FW); 445 return ENOMEM; 446 } 447 fc->speed_map = (struct fw_speed_map *)malloc( 448 sizeof(struct fw_speed_map), 449 M_FW, M_NOWAIT | M_ZERO); 450 if (fc->speed_map == NULL) { 451 device_printf(fc->dev, "%s: Malloc Failure speed map\n", __func__); 452 free(fc->crom_src_buf, M_FW); 453 free(fc->topology_map, M_FW); 454 return ENOMEM; 455 } 456 457 mtx_init(&fc->wait_lock, "fwwait", NULL, MTX_DEF); 458 mtx_init(&fc->tlabel_lock, "fwtlabel", NULL, MTX_DEF); 459 CALLOUT_INIT(&fc->timeout_callout); 460 CALLOUT_INIT(&fc->bmr_callout); 461 CALLOUT_INIT(&fc->busprobe_callout); 462 TASK_INIT(&fc->task_timeout, 0, firewire_xfer_timeout, (void *)fc); 463 464 callout_reset(&sc->fc->timeout_callout, hz, 465 (void *)firewire_watchdog, (void *)sc->fc); 466 467 /* create thread */ 468 kproc_create(fw_bus_probe_thread, (void *)fc, &fc->probe_thread, 469 0, 0, "fw%d_probe", unit); 470 471 /* Locate our children */ 472 bus_generic_probe(dev); 473 474 /* launch attachement of the added children */ 475 bus_generic_attach(dev); 476 477 /* bus_reset */ 478 FW_GLOCK(fc); 479 fw_busreset(fc, FWBUSNOTREADY); 480 FW_GUNLOCK(fc); 481 fc->ibr(fc); 482 483 return 0; 484 } 485 486 /* 487 * Attach it as child. 488 */ 489 static device_t 490 firewire_add_child(device_t dev, u_int order, const char *name, int unit) 491 { 492 device_t child; 493 struct firewire_softc *sc; 494 495 sc = (struct firewire_softc *)device_get_softc(dev); 496 child = device_add_child(dev, name, unit); 497 if (child) { 498 device_set_ivars(child, sc->fc); 499 device_probe_and_attach(child); 500 } 501 502 return child; 503 } 504 505 static int 506 firewire_resume(device_t dev) 507 { 508 struct firewire_softc *sc; 509 510 sc = (struct firewire_softc *)device_get_softc(dev); 511 sc->fc->status = FWBUSNOTREADY; 512 513 bus_generic_resume(dev); 514 515 return(0); 516 } 517 518 /* 519 * Dettach it. 520 */ 521 static int 522 firewire_detach(device_t dev) 523 { 524 struct firewire_softc *sc; 525 struct firewire_comm *fc; 526 struct fw_device *fwdev, *fwdev_next; 527 int err; 528 529 sc = (struct firewire_softc *)device_get_softc(dev); 530 fc = sc->fc; 531 mtx_lock(&fc->wait_lock); 532 fc->status = FWBUSDETACH; 533 wakeup(fc); 534 if (msleep(fc->probe_thread, &fc->wait_lock, PWAIT, "fwthr", hz * 60)) 535 printf("firewire probe thread didn't die\n"); 536 mtx_unlock(&fc->wait_lock); 537 538 if (fc->arq !=0 && fc->arq->maxq > 0) 539 fw_drain_txq(fc); 540 541 if ((err = fwdev_destroydev(sc)) != 0) 542 return err; 543 544 if ((err = bus_generic_detach(dev)) != 0) 545 return err; 546 547 callout_stop(&fc->timeout_callout); 548 callout_stop(&fc->bmr_callout); 549 callout_stop(&fc->busprobe_callout); 550 551 /* XXX xfer_free and untimeout on all xfers */ 552 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; 553 fwdev = fwdev_next) { 554 fwdev_next = STAILQ_NEXT(fwdev, link); 555 free(fwdev, M_FW); 556 } 557 free(fc->topology_map, M_FW); 558 free(fc->speed_map, M_FW); 559 free(fc->crom_src_buf, M_FW); 560 561 mtx_destroy(&fc->tlabel_lock); 562 mtx_destroy(&fc->wait_lock); 563 return(0); 564 } 565 #if 0 566 static int 567 firewire_shutdown( device_t dev ) 568 { 569 return 0; 570 } 571 #endif 572 573 574 static void 575 fw_xferq_drain(struct fw_xferq *xferq) 576 { 577 struct fw_xfer *xfer; 578 579 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 580 STAILQ_REMOVE_HEAD(&xferq->q, link); 581 #if 0 582 xferq->queued --; 583 #endif 584 xfer->resp = EAGAIN; 585 xfer->flag = FWXF_SENTERR; 586 fw_xfer_done(xfer); 587 } 588 } 589 590 void 591 fw_drain_txq(struct firewire_comm *fc) 592 { 593 struct fw_xfer *xfer, *txfer; 594 STAILQ_HEAD(, fw_xfer) xfer_drain; 595 int i; 596 597 STAILQ_INIT(&xfer_drain); 598 599 FW_GLOCK(fc); 600 fw_xferq_drain(fc->atq); 601 fw_xferq_drain(fc->ats); 602 for(i = 0; i < fc->nisodma; i++) 603 fw_xferq_drain(fc->it[i]); 604 FW_GUNLOCK(fc); 605 606 mtx_lock(&fc->tlabel_lock); 607 for (i = 0; i < 0x40; i ++) 608 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 609 if (firewire_debug) 610 printf("tl=%d flag=%d\n", i, xfer->flag); 611 xfer->resp = EAGAIN; 612 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel); 613 STAILQ_INSERT_TAIL(&xfer_drain, xfer, tlabel); 614 } 615 mtx_unlock(&fc->tlabel_lock); 616 617 STAILQ_FOREACH_SAFE(xfer, &xfer_drain, tlabel, txfer) 618 xfer->hand(xfer); 619 } 620 621 static void 622 fw_reset_csr(struct firewire_comm *fc) 623 { 624 int i; 625 626 CSRARC(fc, STATE_CLEAR) 627 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 628 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 629 CSRARC(fc, NODE_IDS) = 0x3f; 630 631 CSRARC(fc, TOPO_MAP + 8) = 0; 632 fc->irm = -1; 633 634 fc->max_node = -1; 635 636 for(i = 2; i < 0x100/4 - 2 ; i++){ 637 CSRARC(fc, SPED_MAP + i * 4) = 0; 638 } 639 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 640 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 641 CSRARC(fc, RESET_START) = 0; 642 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 643 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 644 CSRARC(fc, CYCLE_TIME) = 0x0; 645 CSRARC(fc, BUS_TIME) = 0x0; 646 CSRARC(fc, BUS_MGR_ID) = 0x3f; 647 CSRARC(fc, BANDWIDTH_AV) = 4915; 648 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 649 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 650 CSRARC(fc, IP_CHANNELS) = (1 << 31); 651 652 CSRARC(fc, CONF_ROM) = 0x04 << 24; 653 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 654 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 655 1 << 28 | 0xff << 16 | 0x09 << 8; 656 CSRARC(fc, CONF_ROM + 0xc) = 0; 657 658 /* DV depend CSRs see blue book */ 659 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 660 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 661 662 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 663 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 664 } 665 666 static void 667 fw_init_crom(struct firewire_comm *fc) 668 { 669 struct crom_src *src; 670 671 src = &fc->crom_src_buf->src; 672 bzero(src, sizeof(struct crom_src)); 673 674 /* BUS info sample */ 675 src->hdr.info_len = 4; 676 677 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 678 679 src->businfo.irmc = 1; 680 src->businfo.cmc = 1; 681 src->businfo.isc = 1; 682 src->businfo.bmc = 1; 683 src->businfo.pmc = 0; 684 src->businfo.cyc_clk_acc = 100; 685 src->businfo.max_rec = fc->maxrec; 686 src->businfo.max_rom = MAXROM_4; 687 #define FW_GENERATION_CHANGEABLE 2 688 src->businfo.generation = FW_GENERATION_CHANGEABLE; 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 mtx_lock(&prison0.pr_mtx); 726 crom_add_simple_text(src, root, &buf->hw, prison0.pr_hostname); 727 mtx_unlock(&prison0.pr_mtx); 728 } 729 730 /* 731 * Called after bus reset. 732 */ 733 void 734 fw_busreset(struct firewire_comm *fc, uint32_t new_status) 735 { 736 struct firewire_dev_comm *fdc; 737 struct crom_src *src; 738 device_t *devlistp; 739 uint32_t *newrom; 740 int i, devcnt; 741 742 FW_GLOCK_ASSERT(fc); 743 if (fc->status == FWBUSMGRELECT) 744 callout_stop(&fc->bmr_callout); 745 746 fc->status = new_status; 747 fw_reset_csr(fc); 748 749 if (fc->status == FWBUSNOTREADY) 750 fw_init_crom(fc); 751 752 fw_reset_crom(fc); 753 754 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 755 for( i = 0 ; i < devcnt ; i++) 756 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 757 fdc = device_get_softc(devlistp[i]); 758 if (fdc->post_busreset != NULL) 759 fdc->post_busreset(fdc); 760 } 761 free(devlistp, M_TEMP); 762 } 763 764 src = &fc->crom_src_buf->src; 765 /* 766 * If the old config rom needs to be overwritten, 767 * bump the businfo.generation indicator to 768 * indicate that we need to be reprobed 769 * See 1394a-2000 8.3.2.5.4 for more details. 770 * generation starts at 2 and rolls over at 0xF 771 * back to 2. 772 * 773 * A generation of 0 indicates a device 774 * that is not 1394a-2000 compliant. 775 * A generation of 1 indicates a device that 776 * does not change it's Bus Info Block or 777 * Configuration ROM. 778 */ 779 #define FW_MAX_GENERATION 0xF 780 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 781 src = &fc->crom_src_buf->src; 782 crom_load(src, newrom, CROMSIZE); 783 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 784 if ( src->businfo.generation++ > FW_MAX_GENERATION ) 785 src->businfo.generation = FW_GENERATION_CHANGEABLE; 786 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 787 } 788 free(newrom, M_FW); 789 790 } 791 792 /* Call once after reboot */ 793 void fw_init(struct firewire_comm *fc) 794 { 795 int i; 796 #ifdef FW_VMACCESS 797 struct fw_xfer *xfer; 798 struct fw_bind *fwb; 799 #endif 800 801 fc->arq->queued = 0; 802 fc->ars->queued = 0; 803 fc->atq->queued = 0; 804 fc->ats->queued = 0; 805 806 fc->arq->buf = NULL; 807 fc->ars->buf = NULL; 808 fc->atq->buf = NULL; 809 fc->ats->buf = NULL; 810 811 fc->arq->flag = 0; 812 fc->ars->flag = 0; 813 fc->atq->flag = 0; 814 fc->ats->flag = 0; 815 816 STAILQ_INIT(&fc->atq->q); 817 STAILQ_INIT(&fc->ats->q); 818 819 for( i = 0 ; i < fc->nisodma ; i ++ ){ 820 fc->it[i]->queued = 0; 821 fc->ir[i]->queued = 0; 822 823 fc->it[i]->start = NULL; 824 fc->ir[i]->start = NULL; 825 826 fc->it[i]->buf = NULL; 827 fc->ir[i]->buf = NULL; 828 829 fc->it[i]->flag = FWXFERQ_STREAM; 830 fc->ir[i]->flag = FWXFERQ_STREAM; 831 832 STAILQ_INIT(&fc->it[i]->q); 833 STAILQ_INIT(&fc->ir[i]->q); 834 } 835 836 fc->arq->maxq = FWMAXQUEUE; 837 fc->ars->maxq = FWMAXQUEUE; 838 fc->atq->maxq = FWMAXQUEUE; 839 fc->ats->maxq = FWMAXQUEUE; 840 841 for( i = 0 ; i < fc->nisodma ; i++){ 842 fc->ir[i]->maxq = FWMAXQUEUE; 843 fc->it[i]->maxq = FWMAXQUEUE; 844 } 845 846 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 847 CSRARC(fc, TOPO_MAP + 4) = 1; 848 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 849 CSRARC(fc, SPED_MAP + 4) = 1; 850 851 STAILQ_INIT(&fc->devices); 852 853 /* Initialize Async handlers */ 854 STAILQ_INIT(&fc->binds); 855 for( i = 0 ; i < 0x40 ; i++){ 856 STAILQ_INIT(&fc->tlabels[i]); 857 } 858 859 /* DV depend CSRs see blue book */ 860 #if 0 861 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 862 CSRARC(fc, oPCR) = 0x8000007a; 863 for(i = 4 ; i < 0x7c/4 ; i+=4){ 864 CSRARC(fc, i + oPCR) = 0x8000007a; 865 } 866 867 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 868 CSRARC(fc, iPCR) = 0x803f0000; 869 for(i = 4 ; i < 0x7c/4 ; i+=4){ 870 CSRARC(fc, i + iPCR) = 0x0; 871 } 872 #endif 873 874 fc->crom_src_buf = NULL; 875 876 #ifdef FW_VMACCESS 877 xfer = fw_xfer_alloc(); 878 if(xfer == NULL) return; 879 880 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 881 if(fwb == NULL){ 882 fw_xfer_free(xfer); 883 return; 884 } 885 xfer->hand = fw_vmaccess; 886 xfer->fc = fc; 887 xfer->sc = NULL; 888 889 fwb->start_hi = 0x2; 890 fwb->start_lo = 0; 891 fwb->addrlen = 0xffffffff; 892 fwb->xfer = xfer; 893 fw_bindadd(fc, fwb); 894 #endif 895 } 896 897 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 898 ((fwb)->end < (addr))?1:0) 899 900 /* 901 * To lookup bound process from IEEE1394 address. 902 */ 903 struct fw_bind * 904 fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 905 { 906 u_int64_t addr; 907 struct fw_bind *tfw, *r = NULL; 908 909 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 910 FW_GLOCK(fc); 911 STAILQ_FOREACH(tfw, &fc->binds, fclist) 912 if (BIND_CMP(addr, tfw) == 0) { 913 r = tfw; 914 break; 915 } 916 FW_GUNLOCK(fc); 917 return(r); 918 } 919 920 /* 921 * To bind IEEE1394 address block to process. 922 */ 923 int 924 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 925 { 926 struct fw_bind *tfw, *prev = NULL; 927 int r = 0; 928 929 if (fwb->start > fwb->end) { 930 printf("%s: invalid range\n", __func__); 931 return EINVAL; 932 } 933 934 FW_GLOCK(fc); 935 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 936 if (fwb->end < tfw->start) 937 break; 938 prev = tfw; 939 } 940 if (prev == NULL) 941 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 942 else if (prev->end < fwb->start) 943 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 944 else { 945 printf("%s: bind failed\n", __func__); 946 r = EBUSY; 947 } 948 FW_GUNLOCK(fc); 949 return (r); 950 } 951 952 /* 953 * To free IEEE1394 address block. 954 */ 955 int 956 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 957 { 958 #if 0 959 struct fw_xfer *xfer, *next; 960 #endif 961 struct fw_bind *tfw; 962 int s; 963 964 s = splfw(); 965 FW_GLOCK(fc); 966 STAILQ_FOREACH(tfw, &fc->binds, fclist) 967 if (tfw == fwb) { 968 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 969 goto found; 970 } 971 972 printf("%s: no such binding\n", __func__); 973 FW_GUNLOCK(fc); 974 splx(s); 975 return (1); 976 found: 977 #if 0 978 /* shall we do this? */ 979 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 980 next = STAILQ_NEXT(xfer, link); 981 fw_xfer_free(xfer); 982 } 983 STAILQ_INIT(&fwb->xferlist); 984 #endif 985 FW_GUNLOCK(fc); 986 987 splx(s); 988 return 0; 989 } 990 991 int 992 fw_xferlist_add(struct fw_xferlist *q, struct malloc_type *type, 993 int slen, int rlen, int n, 994 struct firewire_comm *fc, void *sc, void (*hand)(struct fw_xfer *)) 995 { 996 int i, s; 997 struct fw_xfer *xfer; 998 999 for (i = 0; i < n; i++) { 1000 xfer = fw_xfer_alloc_buf(type, slen, rlen); 1001 if (xfer == NULL) 1002 return (n); 1003 xfer->fc = fc; 1004 xfer->sc = sc; 1005 xfer->hand = hand; 1006 s = splfw(); 1007 STAILQ_INSERT_TAIL(q, xfer, link); 1008 splx(s); 1009 } 1010 return (n); 1011 } 1012 1013 void 1014 fw_xferlist_remove(struct fw_xferlist *q) 1015 { 1016 struct fw_xfer *xfer, *next; 1017 1018 for (xfer = STAILQ_FIRST(q); xfer != NULL; xfer = next) { 1019 next = STAILQ_NEXT(xfer, link); 1020 fw_xfer_free_buf(xfer); 1021 } 1022 STAILQ_INIT(q); 1023 } 1024 /* 1025 * dump packet header 1026 */ 1027 static void 1028 fw_dump_hdr(struct fw_pkt *fp, char *prefix) 1029 { 1030 printf("%s: dst=0x%02x tl=0x%02x rt=%d tcode=0x%x pri=0x%x " 1031 "src=0x%03x\n", prefix, 1032 fp->mode.hdr.dst & 0x3f, 1033 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tlrt & 3, 1034 fp->mode.hdr.tcode, fp->mode.hdr.pri, 1035 fp->mode.hdr.src); 1036 } 1037 1038 /* 1039 * To free transaction label. 1040 */ 1041 static void 1042 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 1043 { 1044 struct fw_xfer *txfer; 1045 int s; 1046 1047 if (xfer->tl < 0) 1048 return; 1049 1050 s = splfw(); 1051 mtx_lock(&fc->tlabel_lock); 1052 #if 1 /* make sure the label is allocated */ 1053 STAILQ_FOREACH(txfer, &fc->tlabels[xfer->tl], tlabel) 1054 if(txfer == xfer) 1055 break; 1056 if (txfer == NULL) { 1057 printf("%s: the xfer is not in the queue " 1058 "(tlabel=%d, flag=0x%x)\n", 1059 __FUNCTION__, xfer->tl, xfer->flag); 1060 fw_dump_hdr(&xfer->send.hdr, "send"); 1061 fw_dump_hdr(&xfer->recv.hdr, "recv"); 1062 kdb_backtrace(); 1063 mtx_unlock(&fc->tlabel_lock); 1064 splx(s); 1065 return; 1066 } 1067 #endif 1068 1069 STAILQ_REMOVE(&fc->tlabels[xfer->tl], xfer, fw_xfer, tlabel); 1070 mtx_unlock(&fc->tlabel_lock); 1071 splx(s); 1072 return; 1073 } 1074 1075 /* 1076 * To obtain XFER structure by transaction label. 1077 */ 1078 static struct fw_xfer * 1079 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel, int tcode) 1080 { 1081 struct fw_xfer *xfer; 1082 int s = splfw(); 1083 int req; 1084 1085 mtx_lock(&fc->tlabel_lock); 1086 STAILQ_FOREACH(xfer, &fc->tlabels[tlabel], tlabel) 1087 if(xfer->send.hdr.mode.hdr.dst == node) { 1088 mtx_unlock(&fc->tlabel_lock); 1089 splx(s); 1090 KASSERT(xfer->tl == tlabel, 1091 ("xfer->tl 0x%x != 0x%x", xfer->tl, tlabel)); 1092 /* extra sanity check */ 1093 req = xfer->send.hdr.mode.hdr.tcode; 1094 if (xfer->fc->tcode[req].valid_res != tcode) { 1095 printf("%s: invalid response tcode " 1096 "(0x%x for 0x%x)\n", __FUNCTION__, 1097 tcode, req); 1098 return(NULL); 1099 } 1100 1101 if (firewire_debug > 2) 1102 printf("fw_tl2xfer: found tl=%d\n", tlabel); 1103 return(xfer); 1104 } 1105 mtx_unlock(&fc->tlabel_lock); 1106 if (firewire_debug > 1) 1107 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 1108 splx(s); 1109 return(NULL); 1110 } 1111 1112 /* 1113 * To allocate IEEE1394 XFER structure. 1114 */ 1115 struct fw_xfer * 1116 fw_xfer_alloc(struct malloc_type *type) 1117 { 1118 struct fw_xfer *xfer; 1119 1120 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 1121 if (xfer == NULL) 1122 return xfer; 1123 1124 xfer->malloc = type; 1125 1126 return xfer; 1127 } 1128 1129 struct fw_xfer * 1130 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 1131 { 1132 struct fw_xfer *xfer; 1133 1134 xfer = fw_xfer_alloc(type); 1135 if (xfer == NULL) 1136 return(NULL); 1137 xfer->send.pay_len = send_len; 1138 xfer->recv.pay_len = recv_len; 1139 if (send_len > 0) { 1140 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 1141 if (xfer->send.payload == NULL) { 1142 fw_xfer_free(xfer); 1143 return(NULL); 1144 } 1145 } 1146 if (recv_len > 0) { 1147 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 1148 if (xfer->recv.payload == NULL) { 1149 if (xfer->send.payload != NULL) 1150 free(xfer->send.payload, type); 1151 fw_xfer_free(xfer); 1152 return(NULL); 1153 } 1154 } 1155 return(xfer); 1156 } 1157 1158 /* 1159 * IEEE1394 XFER post process. 1160 */ 1161 void 1162 fw_xfer_done(struct fw_xfer *xfer) 1163 { 1164 if (xfer->hand == NULL) { 1165 printf("hand == NULL\n"); 1166 return; 1167 } 1168 1169 if (xfer->fc == NULL) 1170 panic("fw_xfer_done: why xfer->fc is NULL?"); 1171 1172 fw_tl_free(xfer->fc, xfer); 1173 xfer->hand(xfer); 1174 } 1175 1176 void 1177 fw_xfer_unload(struct fw_xfer* xfer) 1178 { 1179 int s; 1180 1181 if(xfer == NULL ) return; 1182 if(xfer->flag & FWXF_INQ){ 1183 printf("fw_xfer_free FWXF_INQ\n"); 1184 s = splfw(); 1185 FW_GLOCK(xfer->fc); 1186 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1187 #if 0 1188 xfer->q->queued --; 1189 #endif 1190 FW_GUNLOCK(xfer->fc); 1191 splx(s); 1192 } 1193 if (xfer->fc != NULL) { 1194 #if 1 1195 if(xfer->flag & FWXF_START) 1196 /* 1197 * This could happen if: 1198 * 1. We call fwohci_arcv() before fwohci_txd(). 1199 * 2. firewire_watch() is called. 1200 */ 1201 printf("fw_xfer_free FWXF_START\n"); 1202 #endif 1203 } 1204 xfer->flag = FWXF_INIT; 1205 xfer->resp = 0; 1206 } 1207 /* 1208 * To free IEEE1394 XFER structure. 1209 */ 1210 void 1211 fw_xfer_free_buf( struct fw_xfer* xfer) 1212 { 1213 if (xfer == NULL) { 1214 printf("%s: xfer == NULL\n", __func__); 1215 return; 1216 } 1217 fw_xfer_unload(xfer); 1218 if(xfer->send.payload != NULL){ 1219 free(xfer->send.payload, xfer->malloc); 1220 } 1221 if(xfer->recv.payload != NULL){ 1222 free(xfer->recv.payload, xfer->malloc); 1223 } 1224 free(xfer, xfer->malloc); 1225 } 1226 1227 void 1228 fw_xfer_free( struct fw_xfer* xfer) 1229 { 1230 if (xfer == NULL) { 1231 printf("%s: xfer == NULL\n", __func__); 1232 return; 1233 } 1234 fw_xfer_unload(xfer); 1235 free(xfer, xfer->malloc); 1236 } 1237 1238 void 1239 fw_asy_callback_free(struct fw_xfer *xfer) 1240 { 1241 #if 0 1242 printf("asyreq done flag=0x%02x resp=%d\n", 1243 xfer->flag, xfer->resp); 1244 #endif 1245 fw_xfer_free(xfer); 1246 } 1247 1248 /* 1249 * To configure PHY. 1250 */ 1251 static void 1252 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1253 { 1254 struct fw_xfer *xfer; 1255 struct fw_pkt *fp; 1256 1257 fc->status = FWBUSPHYCONF; 1258 1259 xfer = fw_xfer_alloc(M_FWXFER); 1260 if (xfer == NULL) 1261 return; 1262 xfer->fc = fc; 1263 xfer->hand = fw_asy_callback_free; 1264 1265 fp = &xfer->send.hdr; 1266 fp->mode.ld[1] = 0; 1267 if (root_node >= 0) 1268 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1269 if (gap_count >= 0) 1270 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1271 fp->mode.ld[2] = ~fp->mode.ld[1]; 1272 /* XXX Dangerous, how to pass PHY packet to device driver */ 1273 fp->mode.common.tcode |= FWTCODE_PHY; 1274 1275 if (firewire_debug) 1276 device_printf(fc->bdev, "%s: root_node=%d gap_count=%d\n", 1277 __func__, root_node, gap_count); 1278 fw_asyreq(fc, -1, xfer); 1279 } 1280 1281 /* 1282 * Dump self ID. 1283 */ 1284 static void 1285 fw_print_sid(uint32_t sid) 1286 { 1287 union fw_self_id *s; 1288 s = (union fw_self_id *) &sid; 1289 if ( s->p0.sequel ) { 1290 if ( s->p1.sequence_num == FW_SELF_ID_PAGE0 ) { 1291 printf("node:%d p3:%d p4:%d p5:%d p6:%d p7:%d" 1292 "p8:%d p9:%d p10:%d\n", 1293 s->p1.phy_id, s->p1.port3, s->p1.port4, 1294 s->p1.port5, s->p1.port6, s->p1.port7, 1295 s->p1.port8, s->p1.port9, s->p1.port10); 1296 } else if (s->p2.sequence_num == FW_SELF_ID_PAGE1 ){ 1297 printf("node:%d p11:%d p12:%d p13:%d p14:%d p15:%d\n", 1298 s->p2.phy_id, s->p2.port11, s->p2.port12, 1299 s->p2.port13, s->p2.port14, s->p2.port15); 1300 } else { 1301 printf("node:%d Unknown Self ID Page number %d\n", 1302 s->p1.phy_id, s->p1.sequence_num); 1303 } 1304 } else { 1305 printf("node:%d link:%d gap:%d spd:%d con:%d pwr:%d" 1306 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1307 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1308 s->p0.phy_speed, s->p0.contender, 1309 s->p0.power_class, s->p0.port0, s->p0.port1, 1310 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1311 } 1312 } 1313 1314 /* 1315 * To receive self ID. 1316 */ 1317 void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1318 { 1319 uint32_t *p; 1320 union fw_self_id *self_id; 1321 u_int i, j, node, c_port = 0, i_branch = 0; 1322 1323 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1324 fc->max_node = fc->nodeid & 0x3f; 1325 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1326 fc->status = FWBUSCYMELECT; 1327 fc->topology_map->crc_len = 2; 1328 fc->topology_map->generation ++; 1329 fc->topology_map->self_id_count = 0; 1330 fc->topology_map->node_count = 0; 1331 fc->speed_map->generation ++; 1332 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1333 self_id = &fc->topology_map->self_id[0]; 1334 for(i = 0; i < fc->sid_cnt; i ++){ 1335 if (sid[1] != ~sid[0]) { 1336 device_printf(fc->bdev, "%s: ERROR invalid self-id packet\n", 1337 __func__); 1338 sid += 2; 1339 continue; 1340 } 1341 *self_id = *((union fw_self_id *)sid); 1342 fc->topology_map->crc_len++; 1343 if(self_id->p0.sequel == 0){ 1344 fc->topology_map->node_count ++; 1345 c_port = 0; 1346 if (firewire_debug) 1347 fw_print_sid(sid[0]); 1348 node = self_id->p0.phy_id; 1349 if(fc->max_node < node){ 1350 fc->max_node = self_id->p0.phy_id; 1351 } 1352 /* XXX I'm not sure this is the right speed_map */ 1353 fc->speed_map->speed[node][node] 1354 = self_id->p0.phy_speed; 1355 for (j = 0; j < node; j ++) { 1356 fc->speed_map->speed[j][node] 1357 = fc->speed_map->speed[node][j] 1358 = min(fc->speed_map->speed[j][j], 1359 self_id->p0.phy_speed); 1360 } 1361 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1362 (self_id->p0.link_active && self_id->p0.contender)) { 1363 fc->irm = self_id->p0.phy_id; 1364 } 1365 if(self_id->p0.port0 >= 0x2){ 1366 c_port++; 1367 } 1368 if(self_id->p0.port1 >= 0x2){ 1369 c_port++; 1370 } 1371 if(self_id->p0.port2 >= 0x2){ 1372 c_port++; 1373 } 1374 } 1375 if(c_port > 2){ 1376 i_branch += (c_port - 2); 1377 } 1378 sid += 2; 1379 self_id++; 1380 fc->topology_map->self_id_count ++; 1381 } 1382 /* CRC */ 1383 fc->topology_map->crc = fw_crc16( 1384 (uint32_t *)&fc->topology_map->generation, 1385 fc->topology_map->crc_len * 4); 1386 fc->speed_map->crc = fw_crc16( 1387 (uint32_t *)&fc->speed_map->generation, 1388 fc->speed_map->crc_len * 4); 1389 /* byteswap and copy to CSR */ 1390 p = (uint32_t *)fc->topology_map; 1391 for (i = 0; i <= fc->topology_map->crc_len; i++) 1392 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1393 p = (uint32_t *)fc->speed_map; 1394 CSRARC(fc, SPED_MAP) = htonl(*p++); 1395 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1396 /* don't byte-swap uint8_t array */ 1397 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1398 1399 fc->max_hop = fc->max_node - i_branch; 1400 device_printf(fc->bdev, "%d nodes, maxhop <= %d %s irm(%d) %s\n", 1401 fc->max_node + 1, fc->max_hop, 1402 (fc->irm == -1) ? "Not IRM capable" : "cable IRM", 1403 fc->irm, 1404 (fc->irm == fc->nodeid) ? " (me) " : ""); 1405 1406 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1407 if (fc->irm == fc->nodeid) { 1408 fc->status = FWBUSMGRDONE; 1409 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1410 fw_bmr(fc); 1411 } else { 1412 fc->status = FWBUSMGRELECT; 1413 callout_reset(&fc->bmr_callout, hz/8, 1414 (void *)fw_try_bmr, (void *)fc); 1415 } 1416 } else 1417 fc->status = FWBUSMGRDONE; 1418 1419 callout_reset(&fc->busprobe_callout, hz/4, 1420 (void *)fw_bus_probe, (void *)fc); 1421 } 1422 1423 /* 1424 * To probe devices on the IEEE1394 bus. 1425 */ 1426 static void 1427 fw_bus_probe(struct firewire_comm *fc) 1428 { 1429 int s; 1430 struct fw_device *fwdev; 1431 1432 s = splfw(); 1433 fc->status = FWBUSEXPLORE; 1434 1435 /* Invalidate all devices, just after bus reset. */ 1436 if (firewire_debug) 1437 device_printf(fc->bdev, "%s:" 1438 "iterate and invalidate all nodes\n", 1439 __func__); 1440 STAILQ_FOREACH(fwdev, &fc->devices, link) 1441 if (fwdev->status != FWDEVINVAL) { 1442 fwdev->status = FWDEVINVAL; 1443 fwdev->rcnt = 0; 1444 if (firewire_debug) 1445 device_printf(fc->bdev, "%s:" 1446 "Invalidate Dev ID: %08x%08x\n", 1447 __func__, fwdev->eui.hi, fwdev->eui.lo); 1448 } else { 1449 if (firewire_debug) 1450 device_printf(fc->bdev, "%s:" 1451 "Dev ID: %08x%08x already invalid\n", 1452 __func__, fwdev->eui.hi, fwdev->eui.lo); 1453 } 1454 splx(s); 1455 1456 wakeup((void *)fc); 1457 } 1458 1459 static int 1460 fw_explore_read_quads(struct fw_device *fwdev, int offset, 1461 uint32_t *quad, int length) 1462 { 1463 struct fw_xfer *xfer; 1464 uint32_t tmp; 1465 int i, error; 1466 1467 for (i = 0; i < length; i ++, offset += sizeof(uint32_t)) { 1468 xfer = fwmem_read_quad(fwdev, NULL, -1, 1469 0xffff, 0xf0000000 | offset, (void *)&tmp, 1470 fw_xferwake); 1471 if (xfer == NULL) 1472 return (-1); 1473 fw_xferwait(xfer); 1474 1475 if (xfer->resp == 0) 1476 quad[i] = ntohl(tmp); 1477 1478 error = xfer->resp; 1479 fw_xfer_free(xfer); 1480 if (error) 1481 return (error); 1482 } 1483 return (0); 1484 } 1485 1486 1487 static int 1488 fw_explore_csrblock(struct fw_device *fwdev, int offset, int recur) 1489 { 1490 int err, i, off; 1491 struct csrdirectory *dir; 1492 struct csrreg *reg; 1493 1494 dir = (struct csrdirectory *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1495 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1496 (uint32_t *)dir, 1); 1497 if (err) 1498 return (-1); 1499 1500 offset += sizeof(uint32_t); 1501 reg = (struct csrreg *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1502 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1503 (uint32_t *)reg, dir->crc_len); 1504 if (err) 1505 return (-1); 1506 1507 /* XXX check CRC */ 1508 1509 off = CSRROMOFF + offset + sizeof(uint32_t) * (dir->crc_len - 1); 1510 if (fwdev->rommax < off) 1511 fwdev->rommax = off; 1512 1513 if (recur == 0) 1514 return (0); 1515 1516 for (i = 0; i < dir->crc_len; i ++, offset += sizeof(uint32_t)) { 1517 if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_D) 1518 recur = 1; 1519 else if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_L) 1520 recur = 0; 1521 else 1522 continue; 1523 1524 off = offset + reg[i].val * sizeof(uint32_t); 1525 if (off > CROMSIZE) { 1526 printf("%s: invalid offset %d\n", __FUNCTION__, off); 1527 return(-1); 1528 } 1529 err = fw_explore_csrblock(fwdev, off, recur); 1530 if (err) 1531 return (-1); 1532 } 1533 return (0); 1534 } 1535 1536 static int 1537 fw_explore_node(struct fw_device *dfwdev) 1538 { 1539 struct firewire_comm *fc; 1540 struct fw_device *fwdev, *pfwdev, *tfwdev; 1541 uint32_t *csr; 1542 struct csrhdr *hdr; 1543 struct bus_info *binfo; 1544 int err, node; 1545 uint32_t speed_test = 0; 1546 1547 fc = dfwdev->fc; 1548 csr = dfwdev->csrrom; 1549 node = dfwdev->dst; 1550 1551 /* First quad */ 1552 err = fw_explore_read_quads(dfwdev, CSRROMOFF, &csr[0], 1); 1553 if (err) { 1554 device_printf(fc->bdev, "%s: node%d: explore_read_quads failure\n", 1555 __func__, node); 1556 dfwdev->status = FWDEVINVAL; 1557 return (-1); 1558 } 1559 hdr = (struct csrhdr *)&csr[0]; 1560 if (hdr->info_len != 4) { 1561 if (firewire_debug) 1562 device_printf(fc->bdev, "%s: node%d: wrong bus info len(%d)\n", 1563 __func__, node, hdr->info_len); 1564 dfwdev->status = FWDEVINVAL; 1565 return (-1); 1566 } 1567 1568 /* bus info */ 1569 err = fw_explore_read_quads(dfwdev, CSRROMOFF + 0x04, &csr[1], 4); 1570 if (err) { 1571 device_printf(fc->bdev, "%s: node%d: error reading 0x04\n", 1572 __func__, node); 1573 dfwdev->status = FWDEVINVAL; 1574 return (-1); 1575 } 1576 binfo = (struct bus_info *)&csr[1]; 1577 if (binfo->bus_name != CSR_BUS_NAME_IEEE1394) { 1578 device_printf(fc->bdev, "%s: node%d: invalid bus name 0x%08x\n", 1579 __func__, node, binfo->bus_name); 1580 dfwdev->status = FWDEVINVAL; 1581 return (-1); 1582 } 1583 1584 if (firewire_debug) 1585 device_printf(fc->bdev, "%s: node(%d) BUS INFO BLOCK:\n" 1586 "irmc(%d) cmc(%d) isc(%d) bmc(%d) pmc(%d) " 1587 "cyc_clk_acc(%d) max_rec(%d) max_rom(%d) " 1588 "generation(%d) link_spd(%d)\n", 1589 __func__, node, 1590 binfo->irmc, binfo->cmc, binfo->isc, 1591 binfo->bmc, binfo->pmc, binfo->cyc_clk_acc, 1592 binfo->max_rec, binfo->max_rom, 1593 binfo->generation, binfo->link_spd); 1594 1595 STAILQ_FOREACH(fwdev, &fc->devices, link) 1596 if (FW_EUI64_EQUAL(fwdev->eui, binfo->eui64)) 1597 break; 1598 if (fwdev == NULL) { 1599 /* new device */ 1600 fwdev = malloc(sizeof(struct fw_device), M_FW, 1601 M_NOWAIT | M_ZERO); 1602 if (fwdev == NULL) { 1603 device_printf(fc->bdev, "%s: node%d: no memory\n", 1604 __func__, node); 1605 return (-1); 1606 } 1607 fwdev->fc = fc; 1608 fwdev->eui = binfo->eui64; 1609 fwdev->dst = dfwdev->dst; 1610 fwdev->maxrec = dfwdev->maxrec; 1611 fwdev->status = dfwdev->status; 1612 1613 /* 1614 * Pre-1394a-2000 didn't have link_spd in 1615 * the Bus Info block, so try and use the 1616 * speed map value. 1617 * 1394a-2000 compliant devices only use 1618 * the Bus Info Block link spd value, so 1619 * ignore the speed map alltogether. SWB 1620 */ 1621 if ( binfo->link_spd == FWSPD_S100 /* 0 */) { 1622 device_printf(fc->bdev, "%s: " 1623 "Pre 1394a-2000 detected\n", 1624 __func__); 1625 fwdev->speed = fc->speed_map->speed[fc->nodeid][node]; 1626 } else 1627 fwdev->speed = binfo->link_spd; 1628 /* 1629 * Test this speed with a read to the CSRROM. 1630 * If it fails, slow down the speed and retry. 1631 */ 1632 while (fwdev->speed > FWSPD_S100 /* 0 */) { 1633 err = fw_explore_read_quads(fwdev, CSRROMOFF, 1634 &speed_test, 1); 1635 if (err) { 1636 device_printf(fc->bdev, "%s: fwdev->speed(%s)" 1637 " decremented due to negotiation\n", 1638 __func__, 1639 linkspeed[fwdev->speed]); 1640 fwdev->speed--; 1641 } else 1642 break; 1643 1644 } 1645 1646 /* 1647 * If the fwdev is not found in the 1648 * fc->devices TAILQ, then we will add it. 1649 */ 1650 pfwdev = NULL; 1651 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1652 if (tfwdev->eui.hi > fwdev->eui.hi || 1653 (tfwdev->eui.hi == fwdev->eui.hi && 1654 tfwdev->eui.lo > fwdev->eui.lo)) 1655 break; 1656 pfwdev = tfwdev; 1657 } 1658 if (pfwdev == NULL) 1659 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1660 else 1661 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1662 1663 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1664 linkspeed[fwdev->speed], 1665 fwdev->eui.hi, fwdev->eui.lo); 1666 } else { 1667 fwdev->dst = node; 1668 fwdev->status = FWDEVINIT; 1669 /* unchanged ? */ 1670 if (bcmp(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5) == 0) { 1671 if (firewire_debug) 1672 device_printf(fc->dev, "node%d: crom unchanged\n", node); 1673 return (0); 1674 } 1675 } 1676 1677 bzero(&fwdev->csrrom[0], CROMSIZE); 1678 1679 /* copy first quad and bus info block */ 1680 bcopy(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5); 1681 fwdev->rommax = CSRROMOFF + sizeof(uint32_t) * 4; 1682 1683 err = fw_explore_csrblock(fwdev, 0x14, 1); /* root directory */ 1684 1685 if (err) { 1686 if (firewire_debug) 1687 device_printf(fc->dev, "%s: explore csrblock failed err(%d)\n", 1688 __func__, err); 1689 fwdev->status = FWDEVINVAL; 1690 fwdev->csrrom[0] = 0; 1691 } 1692 return (err); 1693 1694 } 1695 1696 /* 1697 * Find the self_id packet for a node, ignoring sequels. 1698 */ 1699 static union fw_self_id * 1700 fw_find_self_id(struct firewire_comm *fc, int node) 1701 { 1702 uint32_t i; 1703 union fw_self_id *s; 1704 1705 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1706 s = &fc->topology_map->self_id[i]; 1707 if (s->p0.sequel) 1708 continue; 1709 if (s->p0.phy_id == node) 1710 return s; 1711 } 1712 return 0; 1713 } 1714 1715 static void 1716 fw_explore(struct firewire_comm *fc) 1717 { 1718 int node, err, s, i, todo, todo2, trys; 1719 char nodes[63]; 1720 struct fw_device dfwdev; 1721 union fw_self_id *fwsid; 1722 1723 todo = 0; 1724 /* setup dummy fwdev */ 1725 dfwdev.fc = fc; 1726 dfwdev.speed = 0; 1727 dfwdev.maxrec = 8; /* 512 */ 1728 dfwdev.status = FWDEVINIT; 1729 1730 for (node = 0; node <= fc->max_node; node ++) { 1731 /* We don't probe myself and linkdown nodes */ 1732 if (node == fc->nodeid) { 1733 if (firewire_debug) 1734 device_printf(fc->bdev, "%s:" 1735 "found myself node(%d) fc->nodeid(%d) fc->max_node(%d)\n", 1736 __func__, node, fc->nodeid, fc->max_node); 1737 continue; 1738 } else if (firewire_debug) { 1739 device_printf(fc->bdev, "%s:" 1740 "node(%d) fc->max_node(%d) found\n", 1741 __func__, node, fc->max_node); 1742 } 1743 fwsid = fw_find_self_id(fc, node); 1744 if (!fwsid || !fwsid->p0.link_active) { 1745 if (firewire_debug) 1746 device_printf(fc->bdev, "%s: node%d: link down\n", 1747 __func__, node); 1748 continue; 1749 } 1750 nodes[todo++] = node; 1751 } 1752 1753 s = splfw(); 1754 for (trys = 0; todo > 0 && trys < 3; trys ++) { 1755 todo2 = 0; 1756 for (i = 0; i < todo; i ++) { 1757 dfwdev.dst = nodes[i]; 1758 err = fw_explore_node(&dfwdev); 1759 if (err) 1760 nodes[todo2++] = nodes[i]; 1761 if (firewire_debug) 1762 device_printf(fc->bdev, "%s: node %d, err = %d\n", 1763 __func__, node, err); 1764 } 1765 todo = todo2; 1766 } 1767 splx(s); 1768 } 1769 1770 1771 static void 1772 fw_bus_probe_thread(void *arg) 1773 { 1774 struct firewire_comm *fc; 1775 1776 fc = (struct firewire_comm *)arg; 1777 1778 mtx_lock(&fc->wait_lock); 1779 while (fc->status != FWBUSDETACH) { 1780 if (fc->status == FWBUSEXPLORE) { 1781 mtx_unlock(&fc->wait_lock); 1782 fw_explore(fc); 1783 fc->status = FWBUSEXPDONE; 1784 if (firewire_debug) 1785 printf("bus_explore done\n"); 1786 fw_attach_dev(fc); 1787 mtx_lock(&fc->wait_lock); 1788 } 1789 msleep((void *)fc, &fc->wait_lock, PWAIT|PCATCH, "-", 0); 1790 } 1791 mtx_unlock(&fc->wait_lock); 1792 kproc_exit(0); 1793 } 1794 1795 /* 1796 * To attach sub-devices layer onto IEEE1394 bus. 1797 */ 1798 static void 1799 fw_attach_dev(struct firewire_comm *fc) 1800 { 1801 struct fw_device *fwdev, *next; 1802 int i, err; 1803 device_t *devlistp; 1804 int devcnt; 1805 struct firewire_dev_comm *fdc; 1806 1807 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1808 next = STAILQ_NEXT(fwdev, link); 1809 if (fwdev->status == FWDEVINIT) { 1810 fwdev->status = FWDEVATTACHED; 1811 } else if (fwdev->status == FWDEVINVAL) { 1812 fwdev->rcnt ++; 1813 if (firewire_debug) 1814 device_printf(fc->bdev, "%s:" 1815 "fwdev->rcnt(%d), hold_count(%d)\n", 1816 __func__, fwdev->rcnt, hold_count); 1817 if (fwdev->rcnt > hold_count) { 1818 /* 1819 * Remove devices which have not been seen 1820 * for a while. 1821 */ 1822 device_printf(fc->bdev, "%s:" 1823 "Removing missing device ID:%08x%08x\n", 1824 __func__, fwdev->eui.hi, fwdev->eui.lo); 1825 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1826 link); 1827 free(fwdev, M_FW); 1828 } 1829 } 1830 } 1831 1832 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1833 if( err == 0 ) { 1834 for( i = 0 ; i < devcnt ; i++){ 1835 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1836 fdc = device_get_softc(devlistp[i]); 1837 if (fdc->post_explore != NULL) 1838 fdc->post_explore(fdc); 1839 } 1840 } 1841 free(devlistp, M_TEMP); 1842 } 1843 1844 return; 1845 } 1846 1847 /* 1848 * To allocate unique transaction label. 1849 */ 1850 static int 1851 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1852 { 1853 u_int dst, new_tlabel; 1854 struct fw_xfer *txfer; 1855 int s; 1856 1857 dst = xfer->send.hdr.mode.hdr.dst & 0x3f; 1858 s = splfw(); 1859 mtx_lock(&fc->tlabel_lock); 1860 new_tlabel = (fc->last_tlabel[dst] + 1) & 0x3f; 1861 STAILQ_FOREACH(txfer, &fc->tlabels[new_tlabel], tlabel) 1862 if ((txfer->send.hdr.mode.hdr.dst & 0x3f) == dst) 1863 break; 1864 if(txfer == NULL) { 1865 fc->last_tlabel[dst] = new_tlabel; 1866 STAILQ_INSERT_TAIL(&fc->tlabels[new_tlabel], xfer, tlabel); 1867 mtx_unlock(&fc->tlabel_lock); 1868 splx(s); 1869 xfer->tl = new_tlabel; 1870 xfer->send.hdr.mode.hdr.tlrt = new_tlabel << 2; 1871 if (firewire_debug > 1) 1872 printf("fw_get_tlabel: dst=%d tl=%d\n", dst, new_tlabel); 1873 return (new_tlabel); 1874 } 1875 mtx_unlock(&fc->tlabel_lock); 1876 splx(s); 1877 1878 if (firewire_debug > 1) 1879 printf("fw_get_tlabel: no free tlabel\n"); 1880 return (-1); 1881 } 1882 1883 static void 1884 fw_rcv_copy(struct fw_rcv_buf *rb) 1885 { 1886 struct fw_pkt *pkt; 1887 u_char *p; 1888 struct tcode_info *tinfo; 1889 u_int res, i, len, plen; 1890 1891 rb->xfer->recv.spd = rb->spd; 1892 1893 pkt = (struct fw_pkt *)rb->vec->iov_base; 1894 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1895 1896 /* Copy header */ 1897 p = (u_char *)&rb->xfer->recv.hdr; 1898 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1899 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1900 rb->vec->iov_len -= tinfo->hdr_len; 1901 1902 /* Copy payload */ 1903 p = (u_char *)rb->xfer->recv.payload; 1904 res = rb->xfer->recv.pay_len; 1905 1906 /* special handling for RRESQ */ 1907 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1908 p != NULL && res >= sizeof(uint32_t)) { 1909 *(uint32_t *)p = pkt->mode.rresq.data; 1910 rb->xfer->recv.pay_len = sizeof(uint32_t); 1911 return; 1912 } 1913 1914 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1915 return; 1916 1917 plen = pkt->mode.rresb.len; 1918 1919 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1920 len = MIN(rb->vec->iov_len, plen); 1921 if (res < len) { 1922 device_printf(rb->fc->bdev, "%s:" 1923 " rcv buffer(%d) is %d bytes short.\n", 1924 __func__, rb->xfer->recv.pay_len, len - res); 1925 len = res; 1926 } 1927 bcopy(rb->vec->iov_base, p, len); 1928 p += len; 1929 res -= len; 1930 plen -= len; 1931 if (res == 0 || plen == 0) 1932 break; 1933 } 1934 rb->xfer->recv.pay_len -= res; 1935 1936 } 1937 1938 /* 1939 * Generic packet receiving process. 1940 */ 1941 void 1942 fw_rcv(struct fw_rcv_buf *rb) 1943 { 1944 struct fw_pkt *fp, *resfp; 1945 struct fw_bind *bind; 1946 int tcode; 1947 int i, len, oldstate; 1948 #if 0 1949 { 1950 uint32_t *qld; 1951 int i; 1952 qld = (uint32_t *)buf; 1953 printf("spd %d len:%d\n", spd, len); 1954 for( i = 0 ; i <= len && i < 32; i+= 4){ 1955 printf("0x%08x ", ntohl(qld[i/4])); 1956 if((i % 16) == 15) printf("\n"); 1957 } 1958 if((i % 16) != 15) printf("\n"); 1959 } 1960 #endif 1961 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1962 tcode = fp->mode.common.tcode; 1963 switch (tcode) { 1964 case FWTCODE_WRES: 1965 case FWTCODE_RRESQ: 1966 case FWTCODE_RRESB: 1967 case FWTCODE_LRES: 1968 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1969 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tcode); 1970 if(rb->xfer == NULL) { 1971 device_printf(rb->fc->bdev, "%s: " 1972 "unknown response " 1973 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1974 __func__, 1975 tcode_str[tcode], tcode, 1976 fp->mode.hdr.src, 1977 fp->mode.hdr.tlrt >> 2, 1978 fp->mode.hdr.tlrt & 3, 1979 fp->mode.rresq.data); 1980 #if 0 1981 printf("try ad-hoc work around!!\n"); 1982 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1983 (fp->mode.hdr.tlrt >> 2)^3); 1984 if (rb->xfer == NULL) { 1985 printf("no use...\n"); 1986 return; 1987 } 1988 #else 1989 return; 1990 #endif 1991 } 1992 fw_rcv_copy(rb); 1993 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1994 rb->xfer->resp = EIO; 1995 else 1996 rb->xfer->resp = 0; 1997 /* make sure the packet is drained in AT queue */ 1998 oldstate = rb->xfer->flag; 1999 rb->xfer->flag = FWXF_RCVD; 2000 switch (oldstate) { 2001 case FWXF_SENT: 2002 fw_xfer_done(rb->xfer); 2003 break; 2004 case FWXF_START: 2005 #if 0 2006 if (firewire_debug) 2007 printf("not sent yet tl=%x\n", rb->xfer->tl); 2008 #endif 2009 break; 2010 default: 2011 device_printf(rb->fc->bdev, "%s: " 2012 "unexpected flag 0x%02x\n", __func__, rb->xfer->flag); 2013 } 2014 return; 2015 case FWTCODE_WREQQ: 2016 case FWTCODE_WREQB: 2017 case FWTCODE_RREQQ: 2018 case FWTCODE_RREQB: 2019 case FWTCODE_LREQ: 2020 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 2021 fp->mode.rreqq.dest_lo); 2022 if(bind == NULL){ 2023 device_printf(rb->fc->bdev, "%s: " 2024 "Unknown service addr 0x%04x:0x%08x %s(%x)" 2025 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2026 " src=0x%x data=%lx\n", 2027 #else 2028 " src=0x%x data=%x\n", 2029 #endif 2030 __func__, 2031 fp->mode.wreqq.dest_hi, 2032 fp->mode.wreqq.dest_lo, 2033 tcode_str[tcode], tcode, 2034 fp->mode.hdr.src, 2035 ntohl(fp->mode.wreqq.data)); 2036 2037 if (rb->fc->status == FWBUSINIT) { 2038 device_printf(rb->fc->bdev, "%s: cannot respond(bus reset)!\n", 2039 __func__); 2040 return; 2041 } 2042 rb->xfer = fw_xfer_alloc(M_FWXFER); 2043 if(rb->xfer == NULL){ 2044 return; 2045 } 2046 rb->xfer->send.spd = rb->spd; 2047 rb->xfer->send.pay_len = 0; 2048 resfp = &rb->xfer->send.hdr; 2049 switch (tcode) { 2050 case FWTCODE_WREQQ: 2051 case FWTCODE_WREQB: 2052 resfp->mode.hdr.tcode = FWTCODE_WRES; 2053 break; 2054 case FWTCODE_RREQQ: 2055 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 2056 break; 2057 case FWTCODE_RREQB: 2058 resfp->mode.hdr.tcode = FWTCODE_RRESB; 2059 break; 2060 case FWTCODE_LREQ: 2061 resfp->mode.hdr.tcode = FWTCODE_LRES; 2062 break; 2063 } 2064 resfp->mode.hdr.dst = fp->mode.hdr.src; 2065 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 2066 resfp->mode.hdr.pri = fp->mode.hdr.pri; 2067 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 2068 resfp->mode.rresb.extcode = 0; 2069 resfp->mode.rresb.len = 0; 2070 /* 2071 rb->xfer->hand = fw_xferwake; 2072 */ 2073 rb->xfer->hand = fw_xfer_free; 2074 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 2075 fw_xfer_free(rb->xfer); 2076 return; 2077 } 2078 return; 2079 } 2080 len = 0; 2081 for (i = 0; i < rb->nvec; i ++) 2082 len += rb->vec[i].iov_len; 2083 rb->xfer = STAILQ_FIRST(&bind->xferlist); 2084 if (rb->xfer == NULL) { 2085 device_printf(rb->fc->bdev, "%s: " 2086 "Discard a packet for this bind.\n", 2087 __func__); 2088 return; 2089 } 2090 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 2091 fw_rcv_copy(rb); 2092 rb->xfer->hand(rb->xfer); 2093 return; 2094 #if 0 /* shouldn't happen ?? or for GASP */ 2095 case FWTCODE_STREAM: 2096 { 2097 struct fw_xferq *xferq; 2098 2099 xferq = rb->fc->ir[sub]; 2100 #if 0 2101 printf("stream rcv dma %d len %d off %d spd %d\n", 2102 sub, len, off, spd); 2103 #endif 2104 if(xferq->queued >= xferq->maxq) { 2105 printf("receive queue is full\n"); 2106 return; 2107 } 2108 /* XXX get xfer from xfer queue, we don't need copy for 2109 per packet mode */ 2110 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 2111 vec[0].iov_len); 2112 if (rb->xfer == NULL) 2113 return; 2114 fw_rcv_copy(rb) 2115 s = splfw(); 2116 xferq->queued++; 2117 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 2118 splx(s); 2119 sc = device_get_softc(rb->fc->bdev); 2120 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2121 if (&xferq->rsel.si_pid != 0) 2122 #else 2123 if (SEL_WAITING(&xferq->rsel)) 2124 #endif 2125 selwakeuppri(&xferq->rsel, FWPRI); 2126 if (xferq->flag & FWXFERQ_WAKEUP) { 2127 xferq->flag &= ~FWXFERQ_WAKEUP; 2128 wakeup((caddr_t)xferq); 2129 } 2130 if (xferq->flag & FWXFERQ_HANDLER) { 2131 xferq->hand(xferq); 2132 } 2133 return; 2134 break; 2135 } 2136 #endif 2137 default: 2138 device_printf(rb->fc->bdev,"%s: unknown tcode %d\n", 2139 __func__, tcode); 2140 break; 2141 } 2142 } 2143 2144 /* 2145 * Post process for Bus Manager election process. 2146 */ 2147 static void 2148 fw_try_bmr_callback(struct fw_xfer *xfer) 2149 { 2150 struct firewire_comm *fc; 2151 int bmr; 2152 2153 if (xfer == NULL) 2154 return; 2155 fc = xfer->fc; 2156 if (xfer->resp != 0) 2157 goto error; 2158 if (xfer->recv.payload == NULL) 2159 goto error; 2160 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2161 goto error; 2162 2163 bmr = ntohl(xfer->recv.payload[0]); 2164 if (bmr == 0x3f) 2165 bmr = fc->nodeid; 2166 2167 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2168 fw_xfer_free_buf(xfer); 2169 fw_bmr(fc); 2170 return; 2171 2172 error: 2173 device_printf(fc->bdev, "bus manager election failed\n"); 2174 fw_xfer_free_buf(xfer); 2175 } 2176 2177 2178 /* 2179 * To candidate Bus Manager election process. 2180 */ 2181 static void 2182 fw_try_bmr(void *arg) 2183 { 2184 struct fw_xfer *xfer; 2185 struct firewire_comm *fc = (struct firewire_comm *)arg; 2186 struct fw_pkt *fp; 2187 int err = 0; 2188 2189 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2190 if(xfer == NULL){ 2191 return; 2192 } 2193 xfer->send.spd = 0; 2194 fc->status = FWBUSMGRELECT; 2195 2196 fp = &xfer->send.hdr; 2197 fp->mode.lreq.dest_hi = 0xffff; 2198 fp->mode.lreq.tlrt = 0; 2199 fp->mode.lreq.tcode = FWTCODE_LREQ; 2200 fp->mode.lreq.pri = 0; 2201 fp->mode.lreq.src = 0; 2202 fp->mode.lreq.len = 8; 2203 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2204 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2205 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2206 xfer->send.payload[0] = htonl(0x3f); 2207 xfer->send.payload[1] = htonl(fc->nodeid); 2208 xfer->hand = fw_try_bmr_callback; 2209 2210 err = fw_asyreq(fc, -1, xfer); 2211 if(err){ 2212 fw_xfer_free_buf(xfer); 2213 return; 2214 } 2215 return; 2216 } 2217 2218 #ifdef FW_VMACCESS 2219 /* 2220 * Software implementation for physical memory block access. 2221 * XXX:Too slow, usef for debug purpose only. 2222 */ 2223 static void 2224 fw_vmaccess(struct fw_xfer *xfer){ 2225 struct fw_pkt *rfp, *sfp = NULL; 2226 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2227 2228 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2229 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2230 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2231 if(xfer->resp != 0){ 2232 fw_xfer_free( xfer); 2233 return; 2234 } 2235 if(xfer->recv.buf == NULL){ 2236 fw_xfer_free( xfer); 2237 return; 2238 } 2239 rfp = (struct fw_pkt *)xfer->recv.buf; 2240 switch(rfp->mode.hdr.tcode){ 2241 /* XXX need fix for 64bit arch */ 2242 case FWTCODE_WREQB: 2243 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2244 xfer->send.len = 12; 2245 sfp = (struct fw_pkt *)xfer->send.buf; 2246 bcopy(rfp->mode.wreqb.payload, 2247 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2248 sfp->mode.wres.tcode = FWTCODE_WRES; 2249 sfp->mode.wres.rtcode = 0; 2250 break; 2251 case FWTCODE_WREQQ: 2252 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2253 xfer->send.len = 12; 2254 sfp->mode.wres.tcode = FWTCODE_WRES; 2255 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2256 sfp->mode.wres.rtcode = 0; 2257 break; 2258 case FWTCODE_RREQB: 2259 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2260 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2261 sfp = (struct fw_pkt *)xfer->send.buf; 2262 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2263 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2264 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2265 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2266 sfp->mode.rresb.rtcode = 0; 2267 sfp->mode.rresb.extcode = 0; 2268 break; 2269 case FWTCODE_RREQQ: 2270 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2271 xfer->send.len = 16; 2272 sfp = (struct fw_pkt *)xfer->send.buf; 2273 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2274 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2275 sfp->mode.rresb.rtcode = 0; 2276 break; 2277 default: 2278 fw_xfer_free( xfer); 2279 return; 2280 } 2281 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2282 xfer->dst = ntohs(rfp->mode.hdr.src); 2283 xfer->hand = fw_xfer_free; 2284 2285 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2286 sfp->mode.hdr.pri = 0; 2287 2288 fw_asyreq(xfer->fc, -1, xfer); 2289 /**/ 2290 return; 2291 } 2292 #endif 2293 2294 /* 2295 * CRC16 check-sum for IEEE1394 register blocks. 2296 */ 2297 uint16_t 2298 fw_crc16(uint32_t *ptr, uint32_t len){ 2299 uint32_t i, sum, crc = 0; 2300 int shift; 2301 len = (len + 3) & ~3; 2302 for(i = 0 ; i < len ; i+= 4){ 2303 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2304 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2305 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2306 } 2307 crc &= 0xffff; 2308 } 2309 return((uint16_t) crc); 2310 } 2311 2312 /* 2313 * Find the root node, if it is not 2314 * Cycle Master Capable, then we should 2315 * override this and become the Cycle 2316 * Master 2317 */ 2318 static int 2319 fw_bmr(struct firewire_comm *fc) 2320 { 2321 struct fw_device fwdev; 2322 union fw_self_id *self_id; 2323 int cmstr; 2324 uint32_t quad; 2325 2326 /* Check to see if the current root node is cycle master capable */ 2327 self_id = fw_find_self_id(fc, fc->max_node); 2328 if (fc->max_node > 0) { 2329 /* XXX check cmc bit of businfo block rather than contender */ 2330 if (self_id->p0.link_active && self_id->p0.contender) 2331 cmstr = fc->max_node; 2332 else { 2333 device_printf(fc->bdev, 2334 "root node is not cycle master capable\n"); 2335 /* XXX shall we be the cycle master? */ 2336 cmstr = fc->nodeid; 2337 /* XXX need bus reset */ 2338 } 2339 } else 2340 cmstr = -1; 2341 2342 device_printf(fc->bdev, "bus manager %d %s\n", 2343 CSRARC(fc, BUS_MGR_ID), 2344 (CSRARC(fc, BUS_MGR_ID) != fc->nodeid) ? "(me)" : ""); 2345 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2346 /* We are not the bus manager */ 2347 return(0); 2348 } 2349 2350 /* Optimize gapcount */ 2351 if(fc->max_hop <= MAX_GAPHOP ) 2352 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2353 /* If we are the cycle master, nothing to do */ 2354 if (cmstr == fc->nodeid || cmstr == -1) 2355 return 0; 2356 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2357 bzero(&fwdev, sizeof(fwdev)); 2358 fwdev.fc = fc; 2359 fwdev.dst = cmstr; 2360 fwdev.speed = 0; 2361 fwdev.maxrec = 8; /* 512 */ 2362 fwdev.status = FWDEVINIT; 2363 /* Set cmstr bit on the cycle master */ 2364 quad = htonl(1 << 8); 2365 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2366 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2367 2368 return 0; 2369 } 2370 2371 int 2372 fw_open_isodma(struct firewire_comm *fc, int tx) 2373 { 2374 struct fw_xferq **xferqa; 2375 struct fw_xferq *xferq; 2376 int i; 2377 2378 if (tx) 2379 xferqa = &fc->it[0]; 2380 else 2381 xferqa = &fc->ir[0]; 2382 2383 FW_GLOCK(fc); 2384 for (i = 0; i < fc->nisodma; i ++) { 2385 xferq = xferqa[i]; 2386 if ((xferq->flag & FWXFERQ_OPEN) == 0) { 2387 xferq->flag |= FWXFERQ_OPEN; 2388 break; 2389 } 2390 } 2391 if (i == fc->nisodma) { 2392 printf("no free dma channel (tx=%d)\n", tx); 2393 i = -1; 2394 } 2395 FW_GUNLOCK(fc); 2396 return (i); 2397 } 2398 2399 static int 2400 fw_modevent(module_t mode, int type, void *data) 2401 { 2402 int err = 0; 2403 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2404 static eventhandler_tag fwdev_ehtag = NULL; 2405 #endif 2406 2407 switch (type) { 2408 case MOD_LOAD: 2409 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2410 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2411 fwdev_clone, 0, 1000); 2412 #endif 2413 break; 2414 case MOD_UNLOAD: 2415 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2416 if (fwdev_ehtag != NULL) 2417 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2418 #endif 2419 break; 2420 case MOD_SHUTDOWN: 2421 break; 2422 default: 2423 return (EOPNOTSUPP); 2424 } 2425 return (err); 2426 } 2427 2428 2429 #ifdef __DragonFly__ 2430 DECLARE_DUMMY_MODULE(firewire); 2431 #endif 2432 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2433 MODULE_VERSION(firewire, 1);
Cache object: eb63909151bdf24b7ce5d3da498ca6c3
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