1 /* $NetBSD: firewire.c,v 1.22 2008/11/12 12:36:11 ad Exp $ */ 2 /*- 3 * Copyright (c) 2003 Hidetoshi Shimokawa 4 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the acknowledgement as bellow: 17 * 18 * This product includes software developed by K. Kobayashi and H. Shimokawa 19 * 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 25 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 26 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 32 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 * 35 * $FreeBSD: src/sys/dev/firewire/firewire.c,v 1.101 2007/10/20 23:23:14 julian Exp $ 36 * 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: firewire.c,v 1.22 2008/11/12 12:36:11 ad Exp $"); 41 42 #if defined(__FreeBSD__) 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/types.h> 46 47 #include <sys/kernel.h> 48 #include <sys/module.h> 49 #include <sys/malloc.h> 50 #include <sys/conf.h> 51 #include <sys/sysctl.h> 52 #include <sys/kthread.h> 53 54 #include <sys/kdb.h> 55 56 #if defined(__DragonFly__) || __FreeBSD_version < 500000 57 #include <machine/clock.h> /* for DELAY() */ 58 #endif 59 60 #include <sys/bus.h> /* used by smbus and newbus */ 61 #include <sys/bus.h> 62 63 #ifdef __DragonFly__ 64 #include "fw_port.h" 65 #include "firewire.h" 66 #include "firewirereg.h" 67 #include "fwmem.h" 68 #include "iec13213.h" 69 #include "iec68113.h" 70 #else 71 #include <dev/firewire/fw_port.h> 72 #include <dev/firewire/firewire.h> 73 #include <dev/firewire/firewirereg.h> 74 #include <dev/firewire/fwmem.h> 75 #include <dev/firewire/iec13213.h> 76 #include <dev/firewire/iec68113.h> 77 #endif 78 #elif defined(__NetBSD__) 79 #include <sys/param.h> 80 #include <sys/device.h> 81 #include <sys/errno.h> 82 #include <sys/conf.h> 83 #include <sys/kernel.h> 84 #include <sys/kthread.h> 85 #include <sys/malloc.h> 86 #include <sys/queue.h> 87 #include <sys/sysctl.h> 88 #include <sys/systm.h> 89 90 #include <sys/bus.h> 91 92 #include <dev/ieee1394/fw_port.h> 93 #include <dev/ieee1394/firewire.h> 94 #include <dev/ieee1394/firewirereg.h> 95 #include <dev/ieee1394/fwmem.h> 96 #include <dev/ieee1394/iec13213.h> 97 #include <dev/ieee1394/iec68113.h> 98 99 #include "locators.h" 100 #endif 101 102 struct crom_src_buf { 103 struct crom_src src; 104 struct crom_chunk root; 105 struct crom_chunk vendor; 106 struct crom_chunk hw; 107 }; 108 109 int firewire_debug=0, try_bmr=1, hold_count=3; 110 #if defined(__FreeBSD__) 111 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 112 "FireWire driver debug flag"); 113 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 114 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 115 "Try to be a bus manager"); 116 SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0, 117 "Number of count of bus resets for removing lost device information"); 118 119 MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 120 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 121 #elif defined(__NetBSD__) 122 /* 123 * Setup sysctl(3) MIB, hw.ieee1394if.* 124 * 125 * TBD condition CTLFLAG_PERMANENT on being a module or not 126 */ 127 SYSCTL_SETUP(sysctl_ieee1394if, "sysctl ieee1394if(4) subtree setup") 128 { 129 int rc, ieee1394if_node_num; 130 const struct sysctlnode *node; 131 132 if ((rc = sysctl_createv(clog, 0, NULL, NULL, 133 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 134 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) { 135 goto err; 136 } 137 138 if ((rc = sysctl_createv(clog, 0, NULL, &node, 139 CTLFLAG_PERMANENT, CTLTYPE_NODE, "ieee1394if", 140 SYSCTL_DESCR("ieee1394if controls"), 141 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) { 142 goto err; 143 } 144 ieee1394if_node_num = node->sysctl_num; 145 146 /* ieee1394if try bus manager flag */ 147 if ((rc = sysctl_createv(clog, 0, NULL, &node, 148 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 149 "try_bmr", SYSCTL_DESCR("Try to be a bus manager"), 150 NULL, 0, &try_bmr, 151 0, CTL_HW, ieee1394if_node_num, CTL_CREATE, CTL_EOL)) != 0) { 152 goto err; 153 } 154 155 /* ieee1394if hold count */ 156 if ((rc = sysctl_createv(clog, 0, NULL, &node, 157 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 158 "hold_count", SYSCTL_DESCR("Number of count of " 159 "bus resets for removing lost device information"), 160 NULL, 0, &hold_count, 161 0, CTL_HW, ieee1394if_node_num, CTL_CREATE, CTL_EOL)) != 0) { 162 goto err; 163 } 164 165 /* ieee1394if driver debug flag */ 166 if ((rc = sysctl_createv(clog, 0, NULL, &node, 167 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 168 "ieee1394_debug", SYSCTL_DESCR("ieee1394if driver debug flag"), 169 NULL, 0, &firewire_debug, 170 0, CTL_HW, ieee1394if_node_num, CTL_CREATE, CTL_EOL)) != 0) { 171 goto err; 172 } 173 174 return; 175 176 err: 177 printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 178 } 179 180 MALLOC_DEFINE(M_FW, "ieee1394", "IEEE1394"); 181 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/IEEE1394"); 182 #endif 183 184 #define FW_MAXASYRTY 4 185 186 #if defined(__FreeBSD__) 187 devclass_t firewire_devclass; 188 189 static void firewire_identify (driver_t *, device_t); 190 static int firewire_probe (device_t); 191 static int firewire_attach (device_t); 192 static int firewire_detach (device_t); 193 static int firewire_resume (device_t); 194 #if 0 195 static int firewire_shutdown (device_t); 196 #endif 197 static device_t firewire_add_child (device_t, int, const char *, int); 198 #elif defined(__NetBSD__) 199 int firewirematch (device_t, struct cfdata *, void *); 200 void firewireattach (device_t, device_t, void *); 201 int firewiredetach (device_t, int); 202 int firewire_print (void *, const char *); 203 int firewire_resume (struct firewire_comm *); 204 #endif 205 static void firewire_xfer_timeout(void *, int); 206 static void fw_try_bmr (void *); 207 static void fw_try_bmr_callback (struct fw_xfer *); 208 static void fw_asystart (struct fw_xfer *); 209 static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *); 210 static void fw_bus_probe (struct firewire_comm *); 211 static void fw_attach_dev (struct firewire_comm *); 212 static void fw_bus_probe_thread(void *); 213 #ifdef FW_VMACCESS 214 static void fw_vmaccess (struct fw_xfer *); 215 #endif 216 static int fw_bmr (struct firewire_comm *); 217 static void fw_dump_hdr(struct fw_pkt *, const char *); 218 219 #if defined(__FreeBSD__) 220 static device_method_t firewire_methods[] = { 221 /* Device interface */ 222 DEVMETHOD(device_identify, firewire_identify), 223 DEVMETHOD(device_probe, firewire_probe), 224 DEVMETHOD(device_attach, firewire_attach), 225 DEVMETHOD(device_detach, firewire_detach), 226 DEVMETHOD(device_suspend, bus_generic_suspend), 227 DEVMETHOD(device_resume, firewire_resume), 228 DEVMETHOD(device_shutdown, bus_generic_shutdown), 229 230 /* Bus interface */ 231 DEVMETHOD(bus_add_child, firewire_add_child), 232 DEVMETHOD(bus_print_child, bus_generic_print_child), 233 234 { 0, 0 } 235 }; 236 #elif defined(__NetBSD__) 237 CFATTACH_DECL_NEW(ieee1394if, sizeof(struct firewire_softc), 238 firewirematch, firewireattach, firewiredetach, NULL); 239 #endif 240 const char *fw_linkspeed[] = { 241 "S100", "S200", "S400", "S800", 242 "S1600", "S3200", "undef", "undef" 243 }; 244 245 static const char *tcode_str[] = { 246 "WREQQ", "WREQB", "WRES", "undef", 247 "RREQQ", "RREQB", "RRESQ", "RRESB", 248 "CYCS", "LREQ", "STREAM", "LRES", 249 "undef", "undef", "PHY", "undef" 250 }; 251 252 /* IEEE-1394a Table C-2 Gap count as a function of hops*/ 253 #define MAX_GAPHOP 15 254 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 255 21, 24, 26, 29, 32, 35, 37, 40}; 256 257 #if defined(__FreeBSD__) 258 static driver_t firewire_driver = { 259 "firewire", 260 firewire_methods, 261 sizeof(struct firewire_softc), 262 }; 263 #endif 264 265 /* 266 * Lookup fwdev by node id. 267 */ 268 struct fw_device * 269 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 270 { 271 struct fw_device *fwdev; 272 int s; 273 274 s = splfw(); 275 FW_GLOCK(fc); 276 STAILQ_FOREACH(fwdev, &fc->devices, link) 277 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 278 break; 279 FW_GUNLOCK(fc); 280 splx(s); 281 282 return fwdev; 283 } 284 285 /* 286 * Lookup fwdev by EUI64. 287 */ 288 struct fw_device * 289 fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 290 { 291 struct fw_device *fwdev; 292 int s; 293 294 s = splfw(); 295 STAILQ_FOREACH(fwdev, &fc->devices, link) 296 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 297 break; 298 splx(s); 299 300 if(fwdev == NULL) return NULL; 301 if(fwdev->status == FWDEVINVAL) return NULL; 302 return fwdev; 303 } 304 305 /* 306 * Async. request procedure for userland application. 307 */ 308 int 309 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 310 { 311 int err = 0; 312 struct fw_xferq *xferq; 313 int len; 314 struct fw_pkt *fp; 315 int tcode; 316 const struct tcode_info *info; 317 318 if(xfer == NULL) return EINVAL; 319 if(xfer->hand == NULL){ 320 printf("hand == NULL\n"); 321 return EINVAL; 322 } 323 fp = &xfer->send.hdr; 324 325 tcode = fp->mode.common.tcode & 0xf; 326 info = &fc->tcode[tcode]; 327 if (info->flag == 0) { 328 printf("invalid tcode=%x\n", tcode); 329 return EINVAL; 330 } 331 332 /* XXX allow bus explore packets only after bus rest */ 333 if ((fc->status < FWBUSEXPLORE) && 334 ((tcode != FWTCODE_RREQQ) || (fp->mode.rreqq.dest_hi != 0xffff) || 335 (fp->mode.rreqq.dest_lo < 0xf0000000) || 336 (fp->mode.rreqq.dest_lo >= 0xf0001000))) { 337 xfer->resp = EAGAIN; 338 xfer->flag = FWXF_BUSY; 339 return (EAGAIN); 340 } 341 342 if (info->flag & FWTI_REQ) 343 xferq = fc->atq; 344 else 345 xferq = fc->ats; 346 len = info->hdr_len; 347 if (xfer->send.pay_len > MAXREC(fc->maxrec)) { 348 printf("send.pay_len > maxrec\n"); 349 return EINVAL; 350 } 351 if (info->flag & FWTI_BLOCK_STR) 352 len = fp->mode.stream.len; 353 else if (info->flag & FWTI_BLOCK_ASY) 354 len = fp->mode.rresb.len; 355 else 356 len = 0; 357 if (len != xfer->send.pay_len){ 358 printf("len(%d) != send.pay_len(%d) %s(%x)\n", 359 len, xfer->send.pay_len, tcode_str[tcode], tcode); 360 return EINVAL; 361 } 362 363 if(xferq->start == NULL){ 364 printf("xferq->start == NULL\n"); 365 return EINVAL; 366 } 367 if(!(xferq->queued < xferq->maxq)){ 368 fw_printf(fc->bdev, "Discard a packet (queued=%d)\n", 369 xferq->queued); 370 return EAGAIN; 371 } 372 373 xfer->tl = -1; 374 if (info->flag & FWTI_TLABEL) { 375 if (fw_get_tlabel(fc, xfer) < 0) 376 return EAGAIN; 377 } 378 379 xfer->resp = 0; 380 xfer->fc = fc; 381 xfer->q = xferq; 382 383 fw_asystart(xfer); 384 return err; 385 } 386 /* 387 * Wakeup blocked process. 388 */ 389 void 390 fw_xferwake(struct fw_xfer *xfer) 391 { 392 fw_mtx_t lock = &xfer->fc->wait_lock; 393 394 fw_mtx_lock(lock); 395 xfer->flag |= FWXF_WAKE; 396 fw_mtx_unlock(lock); 397 398 wakeup(xfer); 399 return; 400 } 401 402 int 403 fw_xferwait(struct fw_xfer *xfer) 404 { 405 fw_mtx_t lock = &xfer->fc->wait_lock; 406 int err = 0; 407 408 fw_mtx_lock(lock); 409 if ((xfer->flag & FWXF_WAKE) == 0) 410 err = fw_msleep((void *)xfer, lock, PWAIT|PCATCH, "fw_xferwait", 0); 411 fw_mtx_unlock(lock); 412 413 return (err); 414 } 415 416 /* 417 * Async. request with given xfer structure. 418 */ 419 static void 420 fw_asystart(struct fw_xfer *xfer) 421 { 422 struct firewire_comm *fc = xfer->fc; 423 int s; 424 s = splfw(); 425 /* Protect from interrupt/timeout */ 426 FW_GLOCK(fc); 427 xfer->flag = FWXF_INQ; 428 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 429 #if 0 430 xfer->q->queued ++; 431 #endif 432 FW_GUNLOCK(fc); 433 splx(s); 434 /* XXX just queue for mbuf */ 435 if (xfer->mbuf == NULL) 436 xfer->q->start(fc); 437 return; 438 } 439 440 #if defined(__FreeBSD__) 441 static void 442 firewire_identify(driver_t *driver, device_t parent) 443 { 444 BUS_ADD_CHILD(parent, 0, "firewire", -1); 445 } 446 447 static int 448 firewire_probe(device_t dev) 449 { 450 device_set_desc(dev, "IEEE1394(FireWire) bus"); 451 return (0); 452 } 453 #elif defined(__NetBSD__) 454 int 455 firewirematch(device_t parent, struct cfdata *cf, void *aux) 456 { 457 struct fwbus_attach_args *faa = (struct fwbus_attach_args *)aux; 458 459 if (strcmp(faa->name, "ieee1394if") == 0) 460 return (1); 461 return (0); 462 } 463 #endif 464 465 static void 466 firewire_xfer_timeout(void *arg, int pending) 467 { 468 struct firewire_comm *fc = (struct firewire_comm *)arg; 469 struct fw_xfer *xfer, *txfer; 470 struct timeval tv; 471 struct timeval split_timeout; 472 STAILQ_HEAD(, fw_xfer) xfer_timeout; 473 int i, s; 474 475 split_timeout.tv_sec = 0; 476 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 477 478 microtime(&tv); 479 fw_timevalsub(&tv, &split_timeout); 480 STAILQ_INIT(&xfer_timeout); 481 482 s = splfw(); 483 fw_mtx_lock(&fc->tlabel_lock); 484 for (i = 0; i < 0x40; i ++) { 485 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 486 if ((xfer->flag & FWXF_SENT) == 0) 487 /* not sent yet */ 488 break; 489 if (fw_timevalcmp(&xfer->tv, &tv, >)) 490 /* the rests are newer than this */ 491 break; 492 fw_printf(fc->bdev, 493 "split transaction timeout: " 494 "tl=0x%x flag=0x%02x\n", i, xfer->flag); 495 fw_dump_hdr(&xfer->send.hdr, "send"); 496 xfer->resp = ETIMEDOUT; 497 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel); 498 STAILQ_INSERT_TAIL(&xfer_timeout, xfer, tlabel); 499 } 500 } 501 fw_mtx_unlock(&fc->tlabel_lock); 502 splx(s); 503 fc->timeout(fc); 504 505 STAILQ_FOREACH_SAFE(xfer, &xfer_timeout, tlabel, txfer) 506 xfer->hand(xfer); 507 } 508 509 #define WATCHDOG_HZ 10 510 static void 511 firewire_watchdog(void *arg) 512 { 513 struct firewire_comm *fc; 514 static int watchdog_clock = 0; 515 516 fc = (struct firewire_comm *)arg; 517 518 /* 519 * At boot stage, the device interrupt is disabled and 520 * We encounter a timeout easily. To avoid this, 521 * ignore clock interrupt for a while. 522 */ 523 if (watchdog_clock > WATCHDOG_HZ * 15) 524 fw_taskqueue_enqueue(fc->taskqueue, &fc->task_timeout); 525 else 526 watchdog_clock ++; 527 528 fw_callout_reset(&fc->timeout_callout, hz / WATCHDOG_HZ, 529 (void *)firewire_watchdog, (void *)fc); 530 } 531 532 /* 533 * The attach routine. 534 */ 535 FW_ATTACH(firewire) 536 { 537 FW_ATTACH_START(firewire, sc, fwa); 538 FIREWIRE_ATTACH_START; 539 540 sc->fc = fc; 541 fc->status = FWBUSNOTREADY; 542 543 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 544 545 FWDEV_MAKEDEV(sc); 546 547 fw_mtx_init(&fc->wait_lock, "fwwait", NULL, MTX_DEF); 548 fw_mtx_init(&fc->tlabel_lock, "fwtlabel", NULL, MTX_DEF); 549 fw_callout_init(&fc->timeout_callout); 550 fw_callout_init(&fc->bmr_callout); 551 fw_callout_init(&fc->busprobe_callout); 552 FW_TASK_INIT(&fc->task_timeout, 0, firewire_xfer_timeout, (void *)fc); 553 554 fw_callout_reset(&sc->fc->timeout_callout, hz, 555 (void *)firewire_watchdog, (void *)sc->fc); 556 557 /* create thread */ 558 fw_kthread_create(fw_bus_probe_thread, (void *)fc, &fc->probe_thread, 559 "fw%d_probe", fw_get_unit(fc->bdev)); 560 fw_config_pending_incr(); 561 562 FIREWIRE_GENERIC_ATTACH; 563 564 /* bus_reset */ 565 fw_busreset(fc, FWBUSNOTREADY); 566 fc->ibr(fc); 567 568 #ifdef __NetBSD__ 569 if (!pmf_device_register(self, NULL, NULL)) 570 aprint_error_dev(self, "couldn't establish power handler\n"); 571 #endif 572 573 FW_ATTACH_RETURN(0); 574 } 575 576 #if defined(__FreeBSD__) 577 /* 578 * Attach it as child. 579 */ 580 static device_t 581 firewire_add_child(device_t dev, int order, const char *name, int unit) 582 { 583 device_t child; 584 struct firewire_softc *sc; 585 struct fw_attach_args fwa; 586 587 sc = (struct firewire_softc *)device_get_softc(dev); 588 child = device_add_child(dev, name, unit); 589 if (child) { 590 fwa.name = name; 591 fwa.fc = sc->fc; 592 fwa.fwdev = NULL; 593 device_set_ivars(child, &fwa); 594 device_probe_and_attach(child); 595 } 596 597 return child; 598 } 599 600 static int 601 firewire_resume(device_t dev) 602 { 603 struct firewire_softc *sc; 604 605 sc = (struct firewire_softc *)device_get_softc(dev); 606 sc->fc->status = FWBUSNOTREADY; 607 608 bus_generic_resume(dev); 609 610 return(0); 611 } 612 #endif 613 614 /* 615 * Dettach it. 616 */ 617 FW_DETACH(firewire) 618 { 619 FW_DETACH_START(firewire, sc); 620 struct firewire_comm *fc; 621 struct fw_device *fwdev, *fwdev_next; 622 623 fc = sc->fc; 624 fw_mtx_lock(&fc->wait_lock); 625 fc->status = FWBUSDETACH; 626 wakeup(fc); 627 if (fw_msleep(fc->probe_thread, 628 &fc->wait_lock, PWAIT, "fwthr", hz * 60)) 629 printf("firewire probe thread didn't die\n"); 630 fw_mtx_unlock(&fc->wait_lock); 631 632 FWDEV_DESTROYDEV(sc); 633 FIREWIRE_GENERIC_DETACH; 634 635 fw_callout_stop(&fc->timeout_callout); 636 fw_callout_stop(&fc->bmr_callout); 637 fw_callout_stop(&fc->busprobe_callout); 638 639 /* XXX xfree_free and untimeout on all xfers */ 640 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; 641 fwdev = fwdev_next) { 642 fwdev_next = STAILQ_NEXT(fwdev, link); 643 free(fwdev, M_FW); 644 } 645 free(fc->topology_map, M_FW); 646 free(fc->speed_map, M_FW); 647 free(fc->crom_src_buf, M_FW); 648 649 fw_mtx_destroy(&fc->wait_lock); 650 fw_mtx_destroy(&fc->tlabel_lock); 651 return(0); 652 } 653 #if defined(__FreeBSD__) 654 #if 0 655 static int 656 firewire_shutdown( device_t dev ) 657 { 658 return 0; 659 } 660 #endif 661 #elif defined(__NetBSD__) 662 int 663 firewire_print(void *aux, const char *pnp) 664 { 665 struct fw_attach_args *fwa = (struct fw_attach_args *)aux; 666 667 if (pnp) 668 aprint_normal("%s at %s", fwa->name, pnp); 669 670 return UNCONF; 671 } 672 673 int 674 firewire_resume(struct firewire_comm *fc) 675 { 676 677 fc->status = FWBUSNOTREADY; 678 return 0; 679 } 680 #endif 681 682 static void 683 fw_xferq_drain(struct fw_xferq *xferq) 684 { 685 struct fw_xfer *xfer; 686 687 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 688 STAILQ_REMOVE_HEAD(&xferq->q, link); 689 #if 0 690 xferq->queued --; 691 #endif 692 xfer->resp = EAGAIN; 693 xfer->flag = FWXF_SENTERR; 694 fw_xfer_done(xfer); 695 } 696 } 697 698 void 699 fw_drain_txq(struct firewire_comm *fc) 700 { 701 struct fw_xfer *xfer, *txfer; 702 STAILQ_HEAD(, fw_xfer) xfer_drain; 703 int i; 704 705 STAILQ_INIT(&xfer_drain); 706 707 FW_GLOCK(fc); 708 fw_xferq_drain(fc->atq); 709 fw_xferq_drain(fc->ats); 710 for(i = 0; i < fc->nisodma; i++) 711 fw_xferq_drain(fc->it[i]); 712 FW_GUNLOCK(fc); 713 714 fw_mtx_lock(&fc->tlabel_lock); 715 for (i = 0; i < 0x40; i ++) 716 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 717 if (firewire_debug) 718 printf("tl=%d flag=%d\n", i, xfer->flag); 719 xfer->resp = EAGAIN; 720 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel); 721 STAILQ_INSERT_TAIL(&xfer_drain, xfer, tlabel); 722 } 723 fw_mtx_unlock(&fc->tlabel_lock); 724 725 STAILQ_FOREACH_SAFE(xfer, &xfer_drain, tlabel, txfer) 726 xfer->hand(xfer); 727 } 728 729 static void 730 fw_reset_csr(struct firewire_comm *fc) 731 { 732 int i; 733 734 CSRARC(fc, STATE_CLEAR) 735 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 736 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 737 CSRARC(fc, NODE_IDS) = 0x3f; 738 739 CSRARC(fc, TOPO_MAP + 8) = 0; 740 fc->irm = -1; 741 742 fc->max_node = -1; 743 744 for(i = 2; i < 0x100/4 - 2 ; i++){ 745 CSRARC(fc, SPED_MAP + i * 4) = 0; 746 } 747 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 748 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 749 CSRARC(fc, RESET_START) = 0; 750 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 751 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 752 CSRARC(fc, CYCLE_TIME) = 0x0; 753 CSRARC(fc, BUS_TIME) = 0x0; 754 CSRARC(fc, BUS_MGR_ID) = 0x3f; 755 CSRARC(fc, BANDWIDTH_AV) = 4915; 756 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 757 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 758 CSRARC(fc, IP_CHANNELS) = (1 << 31); 759 760 CSRARC(fc, CONF_ROM) = 0x04 << 24; 761 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 762 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 763 1 << 28 | 0xff << 16 | 0x09 << 8; 764 CSRARC(fc, CONF_ROM + 0xc) = 0; 765 766 /* DV depend CSRs see blue book */ 767 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 768 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 769 770 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 771 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 772 } 773 774 static void 775 fw_init_crom(struct firewire_comm *fc) 776 { 777 struct crom_src *src; 778 779 fc->crom_src_buf = (struct crom_src_buf *) 780 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 781 if (fc->crom_src_buf == NULL) 782 return; 783 784 src = &fc->crom_src_buf->src; 785 bzero(src, sizeof(struct crom_src)); 786 787 /* BUS info sample */ 788 src->hdr.info_len = 4; 789 790 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 791 792 src->businfo.irmc = 1; 793 src->businfo.cmc = 1; 794 src->businfo.isc = 1; 795 src->businfo.bmc = 1; 796 src->businfo.pmc = 0; 797 src->businfo.cyc_clk_acc = 100; 798 src->businfo.max_rec = fc->maxrec; 799 src->businfo.max_rom = MAXROM_4; 800 src->businfo.generation = 1; 801 src->businfo.link_spd = fc->speed; 802 803 src->businfo.eui64.hi = fc->eui.hi; 804 src->businfo.eui64.lo = fc->eui.lo; 805 806 STAILQ_INIT(&src->chunk_list); 807 808 fc->crom_src = src; 809 fc->crom_root = &fc->crom_src_buf->root; 810 } 811 812 static void 813 fw_reset_crom(struct firewire_comm *fc) 814 { 815 struct crom_src_buf *buf; 816 struct crom_src *src; 817 struct crom_chunk *root; 818 819 if (fc->crom_src_buf == NULL) 820 fw_init_crom(fc); 821 822 buf = fc->crom_src_buf; 823 src = fc->crom_src; 824 root = fc->crom_root; 825 826 STAILQ_INIT(&src->chunk_list); 827 828 bzero(root, sizeof(struct crom_chunk)); 829 crom_add_chunk(src, NULL, root, 0); 830 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 831 /* private company_id */ 832 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 833 crom_add_simple_text(src, root, &buf->vendor, PROJECT_STR); 834 crom_add_entry(root, CSRKEY_HW, OS_VER); 835 crom_add_simple_text(src, root, &buf->hw, hostname); 836 } 837 838 /* 839 * Called after bus reset. 840 */ 841 void 842 fw_busreset(struct firewire_comm *fc, uint32_t new_status) 843 { 844 struct firewire_dev_comm *fdc; 845 struct crom_src *src; 846 void *newrom; 847 848 switch(fc->status){ 849 case FWBUSMGRELECT: 850 fw_callout_stop(&fc->bmr_callout); 851 break; 852 default: 853 break; 854 } 855 fc->status = new_status; 856 fw_reset_csr(fc); 857 fw_reset_crom(fc); 858 859 FIREWIRE_CHILDREN_FOREACH_FUNC(post_busreset, fdc); 860 861 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 862 src = &fc->crom_src_buf->src; 863 crom_load(src, (uint32_t *)newrom, CROMSIZE); 864 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 865 /* bump generation and reload */ 866 src->businfo.generation ++; 867 /* generation must be between 0x2 and 0xF */ 868 if (src->businfo.generation < 2) 869 src->businfo.generation ++; 870 crom_load(src, (uint32_t *)newrom, CROMSIZE); 871 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 872 } 873 free(newrom, M_FW); 874 } 875 876 /* Call once after reboot */ 877 void fw_init(struct firewire_comm *fc) 878 { 879 int i; 880 #ifdef FW_VMACCESS 881 struct fw_xfer *xfer; 882 struct fw_bind *fwb; 883 #endif 884 885 fc->arq->queued = 0; 886 fc->ars->queued = 0; 887 fc->atq->queued = 0; 888 fc->ats->queued = 0; 889 890 fc->arq->buf = NULL; 891 fc->ars->buf = NULL; 892 fc->atq->buf = NULL; 893 fc->ats->buf = NULL; 894 895 fc->arq->flag = 0; 896 fc->ars->flag = 0; 897 fc->atq->flag = 0; 898 fc->ats->flag = 0; 899 900 STAILQ_INIT(&fc->atq->q); 901 STAILQ_INIT(&fc->ats->q); 902 903 for( i = 0 ; i < fc->nisodma ; i ++ ){ 904 fc->it[i]->queued = 0; 905 fc->ir[i]->queued = 0; 906 907 fc->it[i]->start = NULL; 908 fc->ir[i]->start = NULL; 909 910 fc->it[i]->buf = NULL; 911 fc->ir[i]->buf = NULL; 912 913 fc->it[i]->flag = FWXFERQ_STREAM; 914 fc->ir[i]->flag = FWXFERQ_STREAM; 915 916 STAILQ_INIT(&fc->it[i]->q); 917 STAILQ_INIT(&fc->ir[i]->q); 918 } 919 920 fc->arq->maxq = FWMAXQUEUE; 921 fc->ars->maxq = FWMAXQUEUE; 922 fc->atq->maxq = FWMAXQUEUE; 923 fc->ats->maxq = FWMAXQUEUE; 924 925 for( i = 0 ; i < fc->nisodma ; i++){ 926 fc->ir[i]->maxq = FWMAXQUEUE; 927 fc->it[i]->maxq = FWMAXQUEUE; 928 } 929 /* Initialize csr registers */ 930 fc->topology_map = (struct fw_topology_map *)malloc( 931 sizeof(struct fw_topology_map), 932 M_FW, M_NOWAIT | M_ZERO); 933 fc->speed_map = (struct fw_speed_map *)malloc( 934 sizeof(struct fw_speed_map), 935 M_FW, M_NOWAIT | M_ZERO); 936 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 937 CSRARC(fc, TOPO_MAP + 4) = 1; 938 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 939 CSRARC(fc, SPED_MAP + 4) = 1; 940 941 STAILQ_INIT(&fc->devices); 942 943 /* Initialize Async handlers */ 944 STAILQ_INIT(&fc->binds); 945 for( i = 0 ; i < 0x40 ; i++){ 946 STAILQ_INIT(&fc->tlabels[i]); 947 } 948 949 /* DV depend CSRs see blue book */ 950 #if 0 951 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 952 CSRARC(fc, oPCR) = 0x8000007a; 953 for(i = 4 ; i < 0x7c/4 ; i+=4){ 954 CSRARC(fc, i + oPCR) = 0x8000007a; 955 } 956 957 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 958 CSRARC(fc, iPCR) = 0x803f0000; 959 for(i = 4 ; i < 0x7c/4 ; i+=4){ 960 CSRARC(fc, i + iPCR) = 0x0; 961 } 962 #endif 963 964 fc->crom_src_buf = NULL; 965 966 #ifdef FW_VMACCESS 967 xfer = fw_xfer_alloc(); 968 if(xfer == NULL) return; 969 970 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 971 if(fwb == NULL){ 972 fw_xfer_free(xfer); 973 return; 974 } 975 xfer->hand = fw_vmaccess; 976 xfer->fc = fc; 977 xfer->sc = NULL; 978 979 fwb->start_hi = 0x2; 980 fwb->start_lo = 0; 981 fwb->addrlen = 0xffffffff; 982 fwb->xfer = xfer; 983 fw_bindadd(fc, fwb); 984 #endif 985 } 986 987 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 988 ((fwb)->end < (addr))?1:0) 989 990 /* 991 * To lookup bound process from IEEE1394 address. 992 */ 993 struct fw_bind * 994 fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 995 { 996 u_int64_t addr; 997 struct fw_bind *tfw, *r = NULL; 998 999 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 1000 FW_GLOCK(fc); 1001 STAILQ_FOREACH(tfw, &fc->binds, fclist) 1002 if (BIND_CMP(addr, tfw) == 0) { 1003 r = tfw; 1004 break; 1005 } 1006 FW_GUNLOCK(fc); 1007 return(r); 1008 } 1009 1010 /* 1011 * To bind IEEE1394 address block to process. 1012 */ 1013 int 1014 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 1015 { 1016 struct fw_bind *tfw, *prev = NULL; 1017 int r = 0; 1018 1019 if (fwb->start > fwb->end) { 1020 printf("%s: invalid range\n", __func__); 1021 return EINVAL; 1022 } 1023 1024 FW_GLOCK(fc); 1025 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 1026 if (fwb->end < tfw->start) 1027 break; 1028 prev = tfw; 1029 } 1030 if (prev == NULL) 1031 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 1032 else if (prev->end < fwb->start) 1033 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 1034 else { 1035 printf("%s: bind failed\n", __func__); 1036 r = EBUSY; 1037 } 1038 FW_GUNLOCK(fc); 1039 return (r); 1040 } 1041 1042 /* 1043 * To free IEEE1394 address block. 1044 */ 1045 int 1046 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 1047 { 1048 #if 0 1049 struct fw_xfer *xfer, *next; 1050 #endif 1051 struct fw_bind *tfw; 1052 int s; 1053 1054 s = splfw(); 1055 FW_GLOCK(fc); 1056 STAILQ_FOREACH(tfw, &fc->binds, fclist) 1057 if (tfw == fwb) { 1058 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 1059 goto found; 1060 } 1061 1062 printf("%s: no such binding\n", __func__); 1063 FW_GUNLOCK(fc); 1064 splx(s); 1065 return (1); 1066 found: 1067 #if 0 1068 /* shall we do this? */ 1069 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 1070 next = STAILQ_NEXT(xfer, link); 1071 fw_xfer_free(xfer); 1072 } 1073 STAILQ_INIT(&fwb->xferlist); 1074 #endif 1075 FW_GUNLOCK(fc); 1076 1077 splx(s); 1078 return 0; 1079 } 1080 1081 int 1082 fw_xferlist_add(struct fw_xferlist *q, struct malloc_type *type, 1083 int slen, int rlen, int n, 1084 struct firewire_comm *fc, void *sc, void (*hand)(struct fw_xfer *)) 1085 { 1086 int i, s; 1087 struct fw_xfer *xfer; 1088 1089 for (i = 0; i < n; i++) { 1090 xfer = fw_xfer_alloc_buf(type, slen, rlen); 1091 if (xfer == NULL) 1092 return (n); 1093 xfer->fc = fc; 1094 xfer->sc = sc; 1095 xfer->hand = hand; 1096 s = splfw(); 1097 STAILQ_INSERT_TAIL(q, xfer, link); 1098 splx(s); 1099 } 1100 return (n); 1101 } 1102 1103 void 1104 fw_xferlist_remove(struct fw_xferlist *q) 1105 { 1106 struct fw_xfer *xfer, *next; 1107 1108 for (xfer = STAILQ_FIRST(q); xfer != NULL; xfer = next) { 1109 next = STAILQ_NEXT(xfer, link); 1110 fw_xfer_free_buf(xfer); 1111 } 1112 STAILQ_INIT(q); 1113 } 1114 1115 /* 1116 * dump packet header 1117 */ 1118 static void 1119 fw_dump_hdr(struct fw_pkt *fp, const char *prefix) 1120 { 1121 printf("%s: dst=0x%02x tl=0x%02x rt=%d tcode=0x%x pri=0x%x " 1122 "src=0x%03x\n", prefix, 1123 fp->mode.hdr.dst & 0x3f, 1124 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tlrt & 3, 1125 fp->mode.hdr.tcode, fp->mode.hdr.pri, 1126 fp->mode.hdr.src); 1127 } 1128 1129 /* 1130 * To free transaction label. 1131 */ 1132 static void 1133 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 1134 { 1135 struct fw_xfer *txfer; 1136 int s; 1137 1138 if (xfer->tl < 0) 1139 return; 1140 1141 s = splfw(); 1142 fw_mtx_lock(&fc->tlabel_lock); 1143 #if 1 /* make sure the label is allocated */ 1144 STAILQ_FOREACH(txfer, &fc->tlabels[xfer->tl], tlabel) 1145 if(txfer == xfer) 1146 break; 1147 if (txfer == NULL) { 1148 printf("%s: the xfer is not in the queue " 1149 "(tlabel=%d, flag=0x%x)\n", 1150 __func__, xfer->tl, xfer->flag); 1151 fw_dump_hdr(&xfer->send.hdr, "send"); 1152 fw_dump_hdr(&xfer->recv.hdr, "recv"); 1153 kdb_backtrace(); 1154 fw_mtx_unlock(&fc->tlabel_lock); 1155 splx(s); 1156 return; 1157 } 1158 #endif 1159 1160 STAILQ_REMOVE(&fc->tlabels[xfer->tl], xfer, fw_xfer, tlabel); 1161 fw_mtx_unlock(&fc->tlabel_lock); 1162 splx(s); 1163 return; 1164 } 1165 1166 /* 1167 * To obtain XFER structure by transaction label. 1168 */ 1169 static struct fw_xfer * 1170 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel, int tcode) 1171 { 1172 struct fw_xfer *xfer; 1173 int s = splfw(); 1174 int req; 1175 1176 fw_mtx_lock(&fc->tlabel_lock); 1177 STAILQ_FOREACH(xfer, &fc->tlabels[tlabel], tlabel) 1178 if(xfer->send.hdr.mode.hdr.dst == node) { 1179 fw_mtx_unlock(&fc->tlabel_lock); 1180 splx(s); 1181 FW_KASSERT(xfer->tl == tlabel, 1182 ("xfer->tl 0x%x != 0x%x", xfer->tl, tlabel)); 1183 /* extra sanity check */ 1184 req = xfer->send.hdr.mode.hdr.tcode; 1185 if (xfer->fc->tcode[req].valid_res != tcode) { 1186 printf("%s: invalid response tcode " 1187 "(0x%x for 0x%x)\n", __func__, 1188 tcode, req); 1189 return(NULL); 1190 } 1191 1192 if (firewire_debug > 2) 1193 printf("fw_tl2xfer: found tl=%d\n", tlabel); 1194 return(xfer); 1195 } 1196 fw_mtx_unlock(&fc->tlabel_lock); 1197 if (firewire_debug > 1) 1198 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 1199 splx(s); 1200 return(NULL); 1201 } 1202 1203 /* 1204 * To allocate IEEE1394 XFER structure. 1205 */ 1206 struct fw_xfer * 1207 fw_xfer_alloc(struct malloc_type *type) 1208 { 1209 struct fw_xfer *xfer; 1210 1211 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 1212 if (xfer == NULL) 1213 return xfer; 1214 1215 xfer->malloc = type; 1216 1217 return xfer; 1218 } 1219 1220 struct fw_xfer * 1221 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 1222 { 1223 struct fw_xfer *xfer; 1224 1225 xfer = fw_xfer_alloc(type); 1226 if (xfer == NULL) 1227 return(NULL); 1228 xfer->send.pay_len = send_len; 1229 xfer->recv.pay_len = recv_len; 1230 if (send_len > 0) { 1231 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 1232 if (xfer->send.payload == NULL) { 1233 fw_xfer_free(xfer); 1234 return(NULL); 1235 } 1236 } 1237 if (recv_len > 0) { 1238 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 1239 if (xfer->recv.payload == NULL) { 1240 if (xfer->send.payload != NULL) 1241 free(xfer->send.payload, type); 1242 fw_xfer_free(xfer); 1243 return(NULL); 1244 } 1245 } 1246 return(xfer); 1247 } 1248 1249 /* 1250 * IEEE1394 XFER post process. 1251 */ 1252 void 1253 fw_xfer_done(struct fw_xfer *xfer) 1254 { 1255 if (xfer->hand == NULL) { 1256 printf("hand == NULL\n"); 1257 return; 1258 } 1259 1260 if (xfer->fc == NULL) 1261 panic("fw_xfer_done: why xfer->fc is NULL?"); 1262 1263 fw_tl_free(xfer->fc, xfer); 1264 xfer->hand(xfer); 1265 } 1266 1267 void 1268 fw_xfer_unload(struct fw_xfer* xfer) 1269 { 1270 int s; 1271 1272 if(xfer == NULL ) return; 1273 if(xfer->flag & FWXF_INQ){ 1274 printf("fw_xfer_free FWXF_INQ\n"); 1275 s = splfw(); 1276 FW_GLOCK(xfer->fc); 1277 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1278 #if 0 1279 xfer->q->queued --; 1280 #endif 1281 FW_GUNLOCK(xfer->fc); 1282 splx(s); 1283 } 1284 if (xfer->fc != NULL) { 1285 #if 1 1286 if(xfer->flag == FWXF_START) 1287 /* 1288 * This could happen if: 1289 * 1. We call fwohci_arcv() before fwohci_txd(). 1290 * 2. firewire_watch() is called. 1291 */ 1292 printf("fw_xfer_free FWXF_START\n"); 1293 #endif 1294 } 1295 xfer->flag = FWXF_INIT; 1296 xfer->resp = 0; 1297 } 1298 /* 1299 * To free IEEE1394 XFER structure. 1300 */ 1301 void 1302 fw_xfer_free_buf( struct fw_xfer* xfer) 1303 { 1304 if (xfer == NULL) { 1305 printf("%s: xfer == NULL\n", __func__); 1306 return; 1307 } 1308 fw_xfer_unload(xfer); 1309 if(xfer->send.payload != NULL){ 1310 free(xfer->send.payload, xfer->malloc); 1311 } 1312 if(xfer->recv.payload != NULL){ 1313 free(xfer->recv.payload, xfer->malloc); 1314 } 1315 free(xfer, xfer->malloc); 1316 } 1317 1318 void 1319 fw_xfer_free( struct fw_xfer* xfer) 1320 { 1321 if (xfer == NULL) { 1322 printf("%s: xfer == NULL\n", __func__); 1323 return; 1324 } 1325 fw_xfer_unload(xfer); 1326 free(xfer, xfer->malloc); 1327 } 1328 1329 void 1330 fw_asy_callback_free(struct fw_xfer *xfer) 1331 { 1332 #if 0 1333 printf("asyreq done flag=%d resp=%d\n", 1334 xfer->flag, xfer->resp); 1335 #endif 1336 fw_xfer_free(xfer); 1337 } 1338 1339 /* 1340 * To configure PHY. 1341 */ 1342 static void 1343 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1344 { 1345 struct fw_xfer *xfer; 1346 struct fw_pkt *fp; 1347 1348 fc->status = FWBUSPHYCONF; 1349 1350 xfer = fw_xfer_alloc(M_FWXFER); 1351 if (xfer == NULL) 1352 return; 1353 xfer->fc = fc; 1354 xfer->hand = fw_asy_callback_free; 1355 1356 fp = &xfer->send.hdr; 1357 fp->mode.ld[1] = 0; 1358 if (root_node >= 0) 1359 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1360 if (gap_count >= 0) 1361 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1362 fp->mode.ld[2] = ~fp->mode.ld[1]; 1363 /* XXX Dangerous, how to pass PHY packet to device driver */ 1364 fp->mode.common.tcode |= FWTCODE_PHY; 1365 1366 if (firewire_debug) 1367 printf("send phy_config root_node=%d gap_count=%d\n", 1368 root_node, gap_count); 1369 fw_asyreq(fc, -1, xfer); 1370 } 1371 1372 #if 0 1373 /* 1374 * Dump self ID. 1375 */ 1376 static void 1377 fw_print_sid(uint32_t sid) 1378 { 1379 union fw_self_id *s; 1380 s = (union fw_self_id *) &sid; 1381 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1382 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1383 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1384 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1385 s->p0.power_class, s->p0.port0, s->p0.port1, 1386 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1387 } 1388 #endif 1389 1390 /* 1391 * To receive self ID. 1392 */ 1393 void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1394 { 1395 uint32_t *p; 1396 union fw_self_id *self_id; 1397 u_int i, j, node, c_port = 0, i_branch = 0; 1398 1399 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1400 fc->max_node = fc->nodeid & 0x3f; 1401 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1402 fc->status = FWBUSCYMELECT; 1403 fc->topology_map->crc_len = 2; 1404 fc->topology_map->generation ++; 1405 fc->topology_map->self_id_count = 0; 1406 fc->topology_map->node_count = 0; 1407 fc->speed_map->generation ++; 1408 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1409 self_id = &fc->topology_map->self_id[0]; 1410 for(i = 0; i < fc->sid_cnt; i ++){ 1411 if (sid[1] != ~sid[0]) { 1412 printf("fw_sidrcv: invalid self-id packet\n"); 1413 sid += 2; 1414 continue; 1415 } 1416 *self_id = *((union fw_self_id *)sid); 1417 fc->topology_map->crc_len++; 1418 if(self_id->p0.sequel == 0){ 1419 fc->topology_map->node_count ++; 1420 c_port = 0; 1421 #if 0 1422 fw_print_sid(sid[0]); 1423 #endif 1424 node = self_id->p0.phy_id; 1425 if(fc->max_node < node){ 1426 fc->max_node = self_id->p0.phy_id; 1427 } 1428 /* XXX I'm not sure this is the right speed_map */ 1429 fc->speed_map->speed[node][node] 1430 = self_id->p0.phy_speed; 1431 for (j = 0; j < node; j ++) { 1432 fc->speed_map->speed[j][node] 1433 = fc->speed_map->speed[node][j] 1434 = min(fc->speed_map->speed[j][j], 1435 self_id->p0.phy_speed); 1436 } 1437 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1438 (self_id->p0.link_active && self_id->p0.contender)) { 1439 fc->irm = self_id->p0.phy_id; 1440 } 1441 if(self_id->p0.port0 >= 0x2){ 1442 c_port++; 1443 } 1444 if(self_id->p0.port1 >= 0x2){ 1445 c_port++; 1446 } 1447 if(self_id->p0.port2 >= 0x2){ 1448 c_port++; 1449 } 1450 } 1451 if(c_port > 2){ 1452 i_branch += (c_port - 2); 1453 } 1454 sid += 2; 1455 self_id++; 1456 fc->topology_map->self_id_count ++; 1457 } 1458 fw_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1459 /* CRC */ 1460 fc->topology_map->crc = fw_crc16( 1461 (uint32_t *)&fc->topology_map->generation, 1462 fc->topology_map->crc_len * 4); 1463 fc->speed_map->crc = fw_crc16( 1464 (uint32_t *)&fc->speed_map->generation, 1465 fc->speed_map->crc_len * 4); 1466 /* byteswap and copy to CSR */ 1467 p = (uint32_t *)fc->topology_map; 1468 for (i = 0; i <= fc->topology_map->crc_len; i++) 1469 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1470 p = (uint32_t *)fc->speed_map; 1471 CSRARC(fc, SPED_MAP) = htonl(*p++); 1472 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1473 /* don't byte-swap uint8_t array */ 1474 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1475 1476 fc->max_hop = fc->max_node - i_branch; 1477 aprint_normal(", maxhop <= %d", fc->max_hop); 1478 1479 if(fc->irm == -1 ){ 1480 aprint_normal(", Not found IRM capable node"); 1481 }else{ 1482 aprint_normal(", cable IRM = %d", fc->irm); 1483 if (fc->irm == fc->nodeid) 1484 aprint_normal(" (me)"); 1485 } 1486 aprint_normal("\n"); 1487 1488 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1489 if (fc->irm == fc->nodeid) { 1490 fc->status = FWBUSMGRDONE; 1491 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1492 fw_bmr(fc); 1493 } else { 1494 fc->status = FWBUSMGRELECT; 1495 fw_callout_reset(&fc->bmr_callout, hz/8, 1496 (void *)fw_try_bmr, (void *)fc); 1497 } 1498 } else 1499 fc->status = FWBUSMGRDONE; 1500 1501 fw_callout_reset(&fc->busprobe_callout, hz/4, 1502 (void *)fw_bus_probe, (void *)fc); 1503 } 1504 1505 /* 1506 * To probe devices on the IEEE1394 bus. 1507 */ 1508 static void 1509 fw_bus_probe(struct firewire_comm *fc) 1510 { 1511 int s; 1512 struct fw_device *fwdev; 1513 1514 s = splfw(); 1515 fc->status = FWBUSEXPLORE; 1516 1517 /* Invalidate all devices, just after bus reset. */ 1518 STAILQ_FOREACH(fwdev, &fc->devices, link) 1519 if (fwdev->status != FWDEVINVAL) { 1520 fwdev->status = FWDEVINVAL; 1521 fwdev->rcnt = 0; 1522 } 1523 splx(s); 1524 1525 wakeup((void *)fc); 1526 } 1527 1528 static int 1529 fw_explore_read_quads(struct fw_device *fwdev, int offset, 1530 uint32_t *quad, int n) 1531 { 1532 struct fw_xfer *xfer; 1533 uint32_t tmp; 1534 int i, error; 1535 1536 1537 for (i = 0; i < n; i ++, offset += sizeof(uint32_t)) { 1538 xfer = fwmem_read_quad(fwdev, NULL, -1, 1539 0xffff, 0xf0000000 | offset, (void *)&tmp, 1540 fw_xferwake); 1541 if (xfer == NULL) 1542 return (-1); 1543 fw_xferwait(xfer); 1544 1545 if (xfer->resp == 0) 1546 quad[i] = ntohl(tmp); 1547 1548 error = xfer->resp; 1549 fw_xfer_free(xfer); 1550 if (error) 1551 return (error); 1552 } 1553 return (0); 1554 } 1555 1556 1557 static int 1558 fw_explore_csrblock(struct fw_device *fwdev, int offset, int recur) 1559 { 1560 int err, i, off; 1561 struct csrdirectory *dir; 1562 struct csrreg *reg; 1563 1564 1565 dir = (struct csrdirectory *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1566 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1567 (uint32_t *)dir, 1); 1568 if (err) 1569 return (-1); 1570 1571 offset += sizeof(uint32_t); 1572 reg = (struct csrreg *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1573 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1574 (uint32_t *)reg, dir->crc_len); 1575 if (err) 1576 return (-1); 1577 1578 /* XXX check CRC */ 1579 1580 off = CSRROMOFF + offset + sizeof(uint32_t) * (dir->crc_len - 1); 1581 if (fwdev->rommax < off) 1582 fwdev->rommax = off; 1583 1584 if (recur == 0) 1585 return (0); 1586 1587 for (i = 0; i < dir->crc_len; i ++, offset += sizeof(uint32_t)) { 1588 if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_D) 1589 recur = 1; 1590 else if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_L) 1591 recur = 0; 1592 else 1593 continue; 1594 1595 off = offset + reg[i].val * sizeof(uint32_t); 1596 if (off > CROMSIZE) { 1597 printf("%s: invalid offset %d\n", __func__, off); 1598 return(-1); 1599 } 1600 err = fw_explore_csrblock(fwdev, off, recur); 1601 if (err) 1602 return (-1); 1603 } 1604 return (0); 1605 } 1606 1607 static int 1608 fw_explore_node(struct fw_device *dfwdev) 1609 { 1610 struct firewire_comm *fc; 1611 struct fw_device *fwdev, *pfwdev, *tfwdev; 1612 uint32_t *csr; 1613 struct csrhdr *hdr; 1614 struct bus_info *binfo; 1615 int err, node, spd; 1616 1617 fc = dfwdev->fc; 1618 csr = dfwdev->csrrom; 1619 node = dfwdev->dst; 1620 1621 /* First quad */ 1622 err = fw_explore_read_quads(dfwdev, CSRROMOFF, &csr[0], 1); 1623 if (err) 1624 return (-1); 1625 hdr = (struct csrhdr *)&csr[0]; 1626 if (hdr->info_len != 4) { 1627 if (firewire_debug) 1628 printf("node%d: wrong bus info len(%d)\n", 1629 node, hdr->info_len); 1630 return (-1); 1631 } 1632 1633 /* bus info */ 1634 err = fw_explore_read_quads(dfwdev, CSRROMOFF + 0x04, &csr[1], 4); 1635 if (err) 1636 return (-1); 1637 binfo = (struct bus_info *)&csr[1]; 1638 if (binfo->bus_name != CSR_BUS_NAME_IEEE1394) { 1639 if (firewire_debug) 1640 printf("node%d: invalid bus name 0x%08x\n", 1641 node, binfo->bus_name); 1642 return (-1); 1643 } 1644 spd = fc->speed_map->speed[fc->nodeid][node]; 1645 STAILQ_FOREACH(fwdev, &fc->devices, link) 1646 if (FW_EUI64_EQUAL(fwdev->eui, binfo->eui64)) 1647 break; 1648 if (fwdev == NULL) { 1649 /* new device */ 1650 fwdev = malloc(sizeof(struct fw_device), M_FW, 1651 M_NOWAIT | M_ZERO); 1652 if (fwdev == NULL) { 1653 if (firewire_debug) 1654 printf("node%d: no memory\n", node); 1655 return (-1); 1656 } 1657 fwdev->fc = fc; 1658 fwdev->eui = binfo->eui64; 1659 fwdev->status = FWDEVNEW; 1660 /* insert into sorted fwdev list */ 1661 pfwdev = NULL; 1662 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1663 if (tfwdev->eui.hi > fwdev->eui.hi || 1664 (tfwdev->eui.hi == fwdev->eui.hi && 1665 tfwdev->eui.lo > fwdev->eui.lo)) 1666 break; 1667 pfwdev = tfwdev; 1668 } 1669 if (pfwdev == NULL) 1670 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1671 else 1672 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1673 1674 fw_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1675 fw_linkspeed[spd], 1676 fwdev->eui.hi, fwdev->eui.lo); 1677 1678 } else 1679 fwdev->status = FWDEVINIT; 1680 fwdev->dst = node; 1681 fwdev->speed = spd; 1682 1683 /* unchanged ? */ 1684 if (bcmp(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5) == 0) { 1685 if (firewire_debug) 1686 printf("node%d: crom unchanged\n", node); 1687 return (0); 1688 } 1689 1690 bzero(&fwdev->csrrom[0], CROMSIZE); 1691 1692 /* copy first quad and bus info block */ 1693 bcopy(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5); 1694 fwdev->rommax = CSRROMOFF + sizeof(uint32_t) * 4; 1695 1696 err = fw_explore_csrblock(fwdev, 0x14, 1); /* root directory */ 1697 1698 if (err) { 1699 fwdev->status = FWDEVINVAL; 1700 fwdev->csrrom[0] = 0; 1701 } 1702 return (err); 1703 1704 } 1705 1706 /* 1707 * Find the self_id packet for a node, ignoring sequels. 1708 */ 1709 static union fw_self_id * 1710 fw_find_self_id(struct firewire_comm *fc, int node) 1711 { 1712 uint32_t i; 1713 union fw_self_id *s; 1714 1715 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1716 s = &fc->topology_map->self_id[i]; 1717 if (s->p0.sequel) 1718 continue; 1719 if (s->p0.phy_id == node) 1720 return s; 1721 } 1722 return 0; 1723 } 1724 1725 static void 1726 fw_explore(struct firewire_comm *fc) 1727 { 1728 int node, err, s, i, todo, todo2, trys; 1729 char nodes[63]; 1730 struct fw_device *dfwdev; 1731 union fw_self_id *fwsid; 1732 1733 todo = 0; 1734 dfwdev = malloc(sizeof(*dfwdev), M_TEMP, M_NOWAIT); 1735 if (dfwdev == NULL) 1736 return; 1737 /* setup dummy fwdev */ 1738 dfwdev->fc = fc; 1739 dfwdev->speed = 0; 1740 dfwdev->maxrec = 8; /* 512 */ 1741 dfwdev->status = FWDEVINIT; 1742 1743 for (node = 0; node <= fc->max_node; node ++) { 1744 /* We don't probe myself and linkdown nodes */ 1745 if (node == fc->nodeid) 1746 continue; 1747 fwsid = fw_find_self_id(fc, node); 1748 if (!fwsid || !fwsid->p0.link_active) { 1749 if (firewire_debug) 1750 printf("node%d: link down\n", node); 1751 continue; 1752 } 1753 nodes[todo++] = node; 1754 } 1755 1756 s = splfw(); 1757 for (trys = 0; todo > 0 && trys < 3; trys ++) { 1758 todo2 = 0; 1759 for (i = 0; i < todo; i ++) { 1760 dfwdev->dst = nodes[i]; 1761 err = fw_explore_node(dfwdev); 1762 if (err) 1763 nodes[todo2++] = nodes[i]; 1764 if (firewire_debug) 1765 printf("%s: node %d, err = %d\n", 1766 __func__, node, err); 1767 } 1768 todo = todo2; 1769 } 1770 splx(s); 1771 free(dfwdev, M_TEMP); 1772 } 1773 1774 static void 1775 fw_bus_probe_thread(void *arg) 1776 { 1777 struct firewire_comm *fc; 1778 1779 fc = (struct firewire_comm *)arg; 1780 1781 fw_config_pending_decr(); 1782 1783 fw_mtx_lock(&fc->wait_lock); 1784 while (fc->status != FWBUSDETACH) { 1785 if (fc->status == FWBUSEXPLORE) { 1786 fw_mtx_unlock(&fc->wait_lock); 1787 fw_explore(fc); 1788 fc->status = FWBUSEXPDONE; 1789 if (firewire_debug) 1790 printf("bus_explore done\n"); 1791 fw_attach_dev(fc); 1792 fw_mtx_lock(&fc->wait_lock); 1793 } 1794 fw_msleep((void *)fc, &fc->wait_lock, PWAIT|PCATCH, "-", 0); 1795 } 1796 fw_mtx_unlock(&fc->wait_lock); 1797 fw_kthread_exit(0); 1798 } 1799 1800 1801 /* 1802 * To attach sub-devices layer onto IEEE1394 bus. 1803 */ 1804 static void 1805 fw_attach_dev(struct firewire_comm *fc) 1806 { 1807 struct fw_device *fwdev, *next; 1808 struct firewire_dev_comm *fdc; 1809 struct fw_attach_args fwa; 1810 1811 fwa.name = "sbp"; 1812 fwa.fc = fc; 1813 1814 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1815 next = STAILQ_NEXT(fwdev, link); 1816 switch (fwdev->status) { 1817 case FWDEVNEW: 1818 FIREWIRE_SBP_ATTACH; 1819 1820 case FWDEVINIT: 1821 case FWDEVATTACHED: 1822 fwdev->status = FWDEVATTACHED; 1823 break; 1824 1825 case FWDEVINVAL: 1826 fwdev->rcnt ++; 1827 break; 1828 1829 default: 1830 /* XXX */ 1831 break; 1832 } 1833 } 1834 1835 FIREWIRE_CHILDREN_FOREACH_FUNC(post_explore, fdc); 1836 1837 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1838 next = STAILQ_NEXT(fwdev, link); 1839 if (fwdev->rcnt > 0 && fwdev->rcnt > hold_count) { 1840 /* 1841 * Remove devices which have not been seen 1842 * for a while. 1843 */ 1844 FIREWIRE_SBP_DETACH; 1845 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1846 free(fwdev, M_FW); 1847 } 1848 } 1849 1850 return; 1851 } 1852 1853 /* 1854 * To allocate unique transaction label. 1855 */ 1856 static int 1857 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1858 { 1859 u_int dst, new_tlabel; 1860 struct fw_xfer *txfer; 1861 int s; 1862 1863 dst = xfer->send.hdr.mode.hdr.dst & 0x3f; 1864 s = splfw(); 1865 fw_mtx_lock(&fc->tlabel_lock); 1866 new_tlabel = (fc->last_tlabel[dst] + 1) & 0x3f; 1867 STAILQ_FOREACH(txfer, &fc->tlabels[new_tlabel], tlabel) 1868 if ((txfer->send.hdr.mode.hdr.dst & 0x3f) == dst) 1869 break; 1870 if(txfer == NULL) { 1871 fc->last_tlabel[dst] = new_tlabel; 1872 STAILQ_INSERT_TAIL(&fc->tlabels[new_tlabel], xfer, tlabel); 1873 fw_mtx_unlock(&fc->tlabel_lock); 1874 splx(s); 1875 xfer->tl = new_tlabel; 1876 xfer->send.hdr.mode.hdr.tlrt = new_tlabel << 2; 1877 if (firewire_debug > 1) 1878 printf("fw_get_tlabel: dst=%d tl=%d\n", dst, new_tlabel); 1879 return (new_tlabel); 1880 } 1881 fw_mtx_unlock(&fc->tlabel_lock); 1882 splx(s); 1883 1884 if (firewire_debug > 1) 1885 printf("fw_get_tlabel: no free tlabel\n"); 1886 return (-1); 1887 } 1888 1889 static void 1890 fw_rcv_copy(struct fw_rcv_buf *rb) 1891 { 1892 struct fw_pkt *pkt; 1893 u_char *p; 1894 const struct tcode_info *tinfo; 1895 u_int res, i, len, plen; 1896 1897 rb->xfer->recv.spd = rb->spd; 1898 1899 pkt = (struct fw_pkt *)rb->vec->iov_base; 1900 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1901 1902 /* Copy header */ 1903 p = (u_char *)&rb->xfer->recv.hdr; 1904 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1905 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1906 rb->vec->iov_len -= tinfo->hdr_len; 1907 1908 /* Copy payload */ 1909 p = (u_char *)rb->xfer->recv.payload; 1910 res = rb->xfer->recv.pay_len; 1911 1912 /* special handling for RRESQ */ 1913 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1914 p != NULL && res >= sizeof(uint32_t)) { 1915 *(uint32_t *)p = pkt->mode.rresq.data; 1916 rb->xfer->recv.pay_len = sizeof(uint32_t); 1917 return; 1918 } 1919 1920 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1921 return; 1922 1923 plen = pkt->mode.rresb.len; 1924 1925 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1926 len = MIN(rb->vec->iov_len, plen); 1927 if (res < len) { 1928 printf("rcv buffer(%d) is %d bytes short.\n", 1929 rb->xfer->recv.pay_len, len - res); 1930 len = res; 1931 } 1932 if (p) { 1933 bcopy(rb->vec->iov_base, p, len); 1934 p += len; 1935 } 1936 res -= len; 1937 plen -= len; 1938 if (res == 0 || plen == 0) 1939 break; 1940 } 1941 rb->xfer->recv.pay_len -= res; 1942 1943 } 1944 1945 /* 1946 * Generic packet receiving process. 1947 */ 1948 void 1949 fw_rcv(struct fw_rcv_buf *rb) 1950 { 1951 struct fw_pkt *fp, *resfp; 1952 struct fw_bind *bind; 1953 int tcode; 1954 int i, len, oldstate; 1955 #if 0 1956 { 1957 uint32_t *qld; 1958 int i; 1959 qld = (uint32_t *)buf; 1960 printf("spd %d len:%d\n", spd, len); 1961 for( i = 0 ; i <= len && i < 32; i+= 4){ 1962 printf("0x%08x ", ntohl(qld[i/4])); 1963 if((i % 16) == 15) printf("\n"); 1964 } 1965 if((i % 16) != 15) printf("\n"); 1966 } 1967 #endif 1968 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1969 tcode = fp->mode.common.tcode; 1970 switch (tcode) { 1971 case FWTCODE_WRES: 1972 case FWTCODE_RRESQ: 1973 case FWTCODE_RRESB: 1974 case FWTCODE_LRES: 1975 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1976 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tcode); 1977 if(rb->xfer == NULL) { 1978 printf("fw_rcv: unknown response " 1979 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1980 tcode_str[tcode], tcode, 1981 fp->mode.hdr.src, 1982 fp->mode.hdr.tlrt >> 2, 1983 fp->mode.hdr.tlrt & 3, 1984 fp->mode.rresq.data); 1985 #if 0 1986 printf("try ad-hoc work around!!\n"); 1987 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1988 (fp->mode.hdr.tlrt >> 2)^3); 1989 if (rb->xfer == NULL) { 1990 printf("no use...\n"); 1991 return; 1992 } 1993 #else 1994 return; 1995 #endif 1996 } 1997 fw_rcv_copy(rb); 1998 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1999 rb->xfer->resp = EIO; 2000 else 2001 rb->xfer->resp = 0; 2002 /* make sure the packet is drained in AT queue */ 2003 oldstate = rb->xfer->flag; 2004 rb->xfer->flag = FWXF_RCVD; 2005 switch (oldstate) { 2006 case FWXF_SENT: 2007 fw_xfer_done(rb->xfer); 2008 break; 2009 case FWXF_START: 2010 #if 0 2011 if (firewire_debug) 2012 printf("not sent yet tl=%x\n", rb->xfer->tl); 2013 #endif 2014 break; 2015 default: 2016 printf("unexpected flag 0x%02x\n", rb->xfer->flag); 2017 } 2018 return; 2019 case FWTCODE_WREQQ: 2020 case FWTCODE_WREQB: 2021 case FWTCODE_RREQQ: 2022 case FWTCODE_RREQB: 2023 case FWTCODE_LREQ: 2024 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 2025 fp->mode.rreqq.dest_lo); 2026 if(bind == NULL){ 2027 #if 1 2028 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 2029 #if defined(__DragonFly__) || \ 2030 (defined(__FreeBSD__) && __FreeBSD_version < 500000) 2031 " src=0x%x data=%lx\n", 2032 #else 2033 " src=0x%x data=%x\n", 2034 #endif 2035 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 2036 tcode_str[tcode], tcode, 2037 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 2038 #endif 2039 if (rb->fc->status == FWBUSINIT) { 2040 printf("fw_rcv: cannot respond(bus reset)!\n"); 2041 return; 2042 } 2043 rb->xfer = fw_xfer_alloc(M_FWXFER); 2044 if(rb->xfer == NULL){ 2045 return; 2046 } 2047 rb->xfer->send.spd = rb->spd; 2048 rb->xfer->send.pay_len = 0; 2049 resfp = &rb->xfer->send.hdr; 2050 switch (tcode) { 2051 case FWTCODE_WREQQ: 2052 case FWTCODE_WREQB: 2053 resfp->mode.hdr.tcode = FWTCODE_WRES; 2054 break; 2055 case FWTCODE_RREQQ: 2056 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 2057 break; 2058 case FWTCODE_RREQB: 2059 resfp->mode.hdr.tcode = FWTCODE_RRESB; 2060 break; 2061 case FWTCODE_LREQ: 2062 resfp->mode.hdr.tcode = FWTCODE_LRES; 2063 break; 2064 } 2065 resfp->mode.hdr.dst = fp->mode.hdr.src; 2066 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 2067 resfp->mode.hdr.pri = fp->mode.hdr.pri; 2068 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 2069 resfp->mode.rresb.extcode = 0; 2070 resfp->mode.rresb.len = 0; 2071 /* 2072 rb->xfer->hand = fw_xferwake; 2073 */ 2074 rb->xfer->hand = fw_xfer_free; 2075 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 2076 fw_xfer_free(rb->xfer); 2077 return; 2078 } 2079 return; 2080 } 2081 len = 0; 2082 for (i = 0; i < rb->nvec; i ++) 2083 len += rb->vec[i].iov_len; 2084 rb->xfer = STAILQ_FIRST(&bind->xferlist); 2085 if (rb->xfer == NULL) { 2086 #if 1 2087 printf("Discard a packet for this bind.\n"); 2088 #endif 2089 return; 2090 } 2091 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 2092 fw_rcv_copy(rb); 2093 rb->xfer->hand(rb->xfer); 2094 return; 2095 #if 0 /* shouldn't happen ?? or for GASP */ 2096 case FWTCODE_STREAM: 2097 { 2098 struct fw_xferq *xferq; 2099 2100 xferq = rb->fc->ir[sub]; 2101 #if 0 2102 printf("stream rcv dma %d len %d off %d spd %d\n", 2103 sub, len, off, spd); 2104 #endif 2105 if(xferq->queued >= xferq->maxq) { 2106 printf("receive queue is full\n"); 2107 return; 2108 } 2109 /* XXX get xfer from xfer queue, we don't need copy for 2110 per packet mode */ 2111 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 2112 vec[0].iov_len); 2113 if (rb->xfer == NULL) 2114 return; 2115 fw_rcv_copy(rb) 2116 s = splfw(); 2117 xferq->queued++; 2118 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 2119 splx(s); 2120 sc = device_get_softc(rb->fc->bdev); 2121 #if defined(__DragonFly__) || \ 2122 (defined(__FreeBSD__) && __FreeBSD_version < 500000) 2123 if (&xferq->rsel.si_pid != 0) 2124 #else 2125 if (SEL_WAITING(&xferq->rsel)) 2126 #endif 2127 selwakeuppri(&xferq->rsel, FWPRI); 2128 if (xferq->flag & FWXFERQ_WAKEUP) { 2129 xferq->flag &= ~FWXFERQ_WAKEUP; 2130 wakeup((void *)xferq); 2131 } 2132 if (xferq->flag & FWXFERQ_HANDLER) { 2133 xferq->hand(xferq); 2134 } 2135 return; 2136 break; 2137 } 2138 #endif 2139 default: 2140 printf("fw_rcv: unknow tcode %d\n", tcode); 2141 break; 2142 } 2143 } 2144 2145 /* 2146 * Post process for Bus Manager election process. 2147 */ 2148 static void 2149 fw_try_bmr_callback(struct fw_xfer *xfer) 2150 { 2151 struct firewire_comm *fc; 2152 int bmr; 2153 2154 if (xfer == NULL) 2155 return; 2156 fc = xfer->fc; 2157 if (xfer->resp != 0) 2158 goto error; 2159 if (xfer->recv.payload == NULL) 2160 goto error; 2161 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2162 goto error; 2163 2164 bmr = ntohl(xfer->recv.payload[0]); 2165 if (bmr == 0x3f) 2166 bmr = fc->nodeid; 2167 2168 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2169 fw_xfer_free_buf(xfer); 2170 fw_bmr(fc); 2171 return; 2172 2173 error: 2174 fw_printf(fc->bdev, "bus manager election failed\n"); 2175 fw_xfer_free_buf(xfer); 2176 } 2177 2178 2179 /* 2180 * To candidate Bus Manager election process. 2181 */ 2182 static void 2183 fw_try_bmr(void *arg) 2184 { 2185 struct fw_xfer *xfer; 2186 struct firewire_comm *fc = (struct firewire_comm *)arg; 2187 struct fw_pkt *fp; 2188 int err = 0; 2189 2190 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2191 if(xfer == NULL){ 2192 return; 2193 } 2194 xfer->send.spd = 0; 2195 fc->status = FWBUSMGRELECT; 2196 2197 fp = &xfer->send.hdr; 2198 fp->mode.lreq.dest_hi = 0xffff; 2199 fp->mode.lreq.tlrt = 0; 2200 fp->mode.lreq.tcode = FWTCODE_LREQ; 2201 fp->mode.lreq.pri = 0; 2202 fp->mode.lreq.src = 0; 2203 fp->mode.lreq.len = 8; 2204 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2205 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2206 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2207 xfer->send.payload[0] = htonl(0x3f); 2208 xfer->send.payload[1] = htonl(fc->nodeid); 2209 xfer->hand = fw_try_bmr_callback; 2210 2211 err = fw_asyreq(fc, -1, xfer); 2212 if(err){ 2213 fw_xfer_free_buf(xfer); 2214 return; 2215 } 2216 return; 2217 } 2218 2219 #ifdef FW_VMACCESS 2220 /* 2221 * Software implementation for physical memory block access. 2222 * XXX:Too slow, usef for debug purpose only. 2223 */ 2224 static void 2225 fw_vmaccess(struct fw_xfer *xfer){ 2226 struct fw_pkt *rfp, *sfp = NULL; 2227 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2228 2229 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2230 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2231 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2232 if(xfer->resp != 0){ 2233 fw_xfer_free( xfer); 2234 return; 2235 } 2236 if(xfer->recv.buf == NULL){ 2237 fw_xfer_free( xfer); 2238 return; 2239 } 2240 rfp = (struct fw_pkt *)xfer->recv.buf; 2241 switch(rfp->mode.hdr.tcode){ 2242 /* XXX need fix for 64bit arch */ 2243 case FWTCODE_WREQB: 2244 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2245 xfer->send.len = 12; 2246 sfp = (struct fw_pkt *)xfer->send.buf; 2247 bcopy(rfp->mode.wreqb.payload, 2248 (void *)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2249 sfp->mode.wres.tcode = FWTCODE_WRES; 2250 sfp->mode.wres.rtcode = 0; 2251 break; 2252 case FWTCODE_WREQQ: 2253 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2254 xfer->send.len = 12; 2255 sfp->mode.wres.tcode = FWTCODE_WRES; 2256 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2257 sfp->mode.wres.rtcode = 0; 2258 break; 2259 case FWTCODE_RREQB: 2260 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2261 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2262 sfp = (struct fw_pkt *)xfer->send.buf; 2263 bcopy((void *)ntohl(rfp->mode.rreqb.dest_lo), 2264 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2265 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2266 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2267 sfp->mode.rresb.rtcode = 0; 2268 sfp->mode.rresb.extcode = 0; 2269 break; 2270 case FWTCODE_RREQQ: 2271 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2272 xfer->send.len = 16; 2273 sfp = (struct fw_pkt *)xfer->send.buf; 2274 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2275 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2276 sfp->mode.rresb.rtcode = 0; 2277 break; 2278 default: 2279 fw_xfer_free( xfer); 2280 return; 2281 } 2282 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2283 xfer->dst = ntohs(rfp->mode.hdr.src); 2284 xfer->hand = fw_xfer_free; 2285 2286 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2287 sfp->mode.hdr.pri = 0; 2288 2289 fw_asyreq(xfer->fc, -1, xfer); 2290 /**/ 2291 return; 2292 } 2293 #endif 2294 2295 /* 2296 * CRC16 check-sum for IEEE1394 register blocks. 2297 */ 2298 uint16_t 2299 fw_crc16(uint32_t *ptr, uint32_t len){ 2300 uint32_t i, sum, crc = 0; 2301 int shift; 2302 len = (len + 3) & ~3; 2303 for(i = 0 ; i < len ; i+= 4){ 2304 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2305 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2306 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2307 } 2308 crc &= 0xffff; 2309 } 2310 return((uint16_t) crc); 2311 } 2312 2313 static int 2314 fw_bmr(struct firewire_comm *fc) 2315 { 2316 struct fw_device fwdev; 2317 union fw_self_id *self_id; 2318 int cmstr; 2319 uint32_t quad; 2320 2321 /* Check to see if the current root node is cycle master capable */ 2322 self_id = fw_find_self_id(fc, fc->max_node); 2323 if (fc->max_node > 0) { 2324 /* XXX check cmc bit of businfo block rather than contender */ 2325 if (self_id->p0.link_active && self_id->p0.contender) 2326 cmstr = fc->max_node; 2327 else { 2328 fw_printf(fc->bdev, 2329 "root node is not cycle master capable\n"); 2330 /* XXX shall we be the cycle master? */ 2331 cmstr = fc->nodeid; 2332 /* XXX need bus reset */ 2333 } 2334 } else 2335 cmstr = -1; 2336 2337 fw_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2338 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2339 /* We are not the bus manager */ 2340 aprint_normal("\n"); 2341 return(0); 2342 } 2343 aprint_normal("(me)\n"); 2344 2345 /* Optimize gapcount */ 2346 if(fc->max_hop <= MAX_GAPHOP ) 2347 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2348 /* If we are the cycle master, nothing to do */ 2349 if (cmstr == fc->nodeid || cmstr == -1) 2350 return 0; 2351 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2352 bzero(&fwdev, sizeof(fwdev)); 2353 fwdev.fc = fc; 2354 fwdev.dst = cmstr; 2355 fwdev.speed = 0; 2356 fwdev.maxrec = 8; /* 512 */ 2357 fwdev.status = FWDEVINIT; 2358 /* Set cmstr bit on the cycle master */ 2359 quad = htonl(1 << 8); 2360 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2361 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2362 2363 return 0; 2364 } 2365 2366 int 2367 fw_open_isodma(struct firewire_comm *fc, int tx) 2368 { 2369 struct fw_xferq **xferqa; 2370 struct fw_xferq *xferq; 2371 int i; 2372 2373 if (tx) 2374 xferqa = &fc->it[0]; 2375 else 2376 xferqa = &fc->ir[0]; 2377 2378 FW_GLOCK(fc); 2379 for (i = 0; i < fc->nisodma; i ++) { 2380 xferq = xferqa[i]; 2381 if ((xferq->flag & FWXFERQ_OPEN) == 0) { 2382 xferq->flag |= FWXFERQ_OPEN; 2383 break; 2384 } 2385 } 2386 if (i == fc->nisodma) { 2387 printf("no free dma channel (tx=%d)\n", tx); 2388 i = -1; 2389 } 2390 FW_GUNLOCK(fc); 2391 return (i); 2392 } 2393 2394 #if defined(__FreeBSD__) 2395 static int 2396 fw_modevent(module_t mode, int type, void *data) 2397 { 2398 int err = 0; 2399 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2400 static eventhandler_tag fwdev_ehtag = NULL; 2401 #endif 2402 2403 switch (type) { 2404 case MOD_LOAD: 2405 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2406 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2407 fwdev_clone, 0, 1000); 2408 #endif 2409 break; 2410 case MOD_UNLOAD: 2411 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2412 if (fwdev_ehtag != NULL) 2413 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2414 #endif 2415 break; 2416 case MOD_SHUTDOWN: 2417 break; 2418 default: 2419 return (EOPNOTSUPP); 2420 } 2421 return (err); 2422 } 2423 2424 2425 #ifdef __DragonFly__ 2426 DECLARE_DUMMY_MODULE(firewire); 2427 #endif 2428 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2429 MODULE_VERSION(firewire, 1); 2430 #endif 2431