firewire.c revision 1.26
1 /* $NetBSD: firewire.c,v 1.26 2010/03/11 04:00:36 mrg 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 1.26 2010/03/11 04:00:36 mrg 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, cfdata_t, 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, cfdata_t 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 #ifdef __NetBSD__ 541 aprint_naive("\n"); 542 #endif 543 544 sc->fc = fc; 545 fc->status = FWBUSNOTREADY; 546 547 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 548 549 FWDEV_MAKEDEV(sc); 550 551 fw_mtx_init(&fc->wait_lock, "fwwait", NULL, MTX_DEF); 552 fw_mtx_init(&fc->tlabel_lock, "fwtlabel", NULL, MTX_DEF); 553 fw_callout_init(&fc->timeout_callout); 554 fw_callout_init(&fc->bmr_callout); 555 fw_callout_init(&fc->busprobe_callout); 556 FW_TASK_INIT(&fc->task_timeout, 0, firewire_xfer_timeout, (void *)fc); 557 558 fw_callout_reset(&sc->fc->timeout_callout, hz, 559 (void *)firewire_watchdog, (void *)sc->fc); 560 561 /* create thread */ 562 fw_kthread_create(fw_bus_probe_thread, (void *)fc, &fc->probe_thread, 563 "fw%d_probe", fw_get_unit(fc->bdev)); 564 fw_config_pending_incr(); 565 566 FIREWIRE_GENERIC_ATTACH; 567 568 /* bus_reset */ 569 fw_busreset(fc, FWBUSNOTREADY); 570 fc->ibr(fc); 571 572 #ifdef __NetBSD__ 573 if (!pmf_device_register(self, NULL, NULL)) 574 aprint_error_dev(self, "couldn't establish power handler\n"); 575 #endif 576 577 FW_ATTACH_RETURN(0); 578 } 579 580 #if defined(__FreeBSD__) 581 /* 582 * Attach it as child. 583 */ 584 static device_t 585 firewire_add_child(device_t dev, int order, const char *name, int unit) 586 { 587 device_t child; 588 struct firewire_softc *sc; 589 struct fw_attach_args fwa; 590 591 sc = (struct firewire_softc *)device_get_softc(dev); 592 child = device_add_child(dev, name, unit); 593 if (child) { 594 fwa.name = name; 595 fwa.fc = sc->fc; 596 fwa.fwdev = NULL; 597 device_set_ivars(child, &fwa); 598 device_probe_and_attach(child); 599 } 600 601 return child; 602 } 603 604 static int 605 firewire_resume(device_t dev) 606 { 607 struct firewire_softc *sc; 608 609 sc = (struct firewire_softc *)device_get_softc(dev); 610 sc->fc->status = FWBUSNOTREADY; 611 612 bus_generic_resume(dev); 613 614 return(0); 615 } 616 #endif 617 618 /* 619 * Dettach it. 620 */ 621 FW_DETACH(firewire) 622 { 623 FW_DETACH_START(firewire, sc); 624 struct firewire_comm *fc; 625 struct fw_device *fwdev, *fwdev_next; 626 627 fc = sc->fc; 628 fw_mtx_lock(&fc->wait_lock); 629 fc->status = FWBUSDETACH; 630 wakeup(fc); 631 if (fw_msleep(fc->probe_thread, 632 &fc->wait_lock, PWAIT, "fwthr", hz * 60)) 633 printf("firewire probe thread didn't die\n"); 634 fw_mtx_unlock(&fc->wait_lock); 635 636 FWDEV_DESTROYDEV(sc); 637 FIREWIRE_GENERIC_DETACH; 638 639 fw_callout_stop(&fc->timeout_callout); 640 fw_callout_stop(&fc->bmr_callout); 641 fw_callout_stop(&fc->busprobe_callout); 642 643 /* XXX xfree_free and untimeout on all xfers */ 644 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; 645 fwdev = fwdev_next) { 646 fwdev_next = STAILQ_NEXT(fwdev, link); 647 free(fwdev, M_FW); 648 } 649 free(fc->topology_map, M_FW); 650 free(fc->speed_map, M_FW); 651 free(fc->crom_src_buf, M_FW); 652 653 fw_mtx_destroy(&fc->wait_lock); 654 fw_mtx_destroy(&fc->tlabel_lock); 655 return(0); 656 } 657 #if defined(__FreeBSD__) 658 #if 0 659 static int 660 firewire_shutdown( device_t dev ) 661 { 662 return 0; 663 } 664 #endif 665 #elif defined(__NetBSD__) 666 int 667 firewire_print(void *aux, const char *pnp) 668 { 669 struct fw_attach_args *fwa = (struct fw_attach_args *)aux; 670 671 if (pnp) 672 aprint_normal("%s at %s", fwa->name, pnp); 673 674 return UNCONF; 675 } 676 677 int 678 firewire_resume(struct firewire_comm *fc) 679 { 680 681 fc->status = FWBUSNOTREADY; 682 return 0; 683 } 684 #endif 685 686 static void 687 fw_xferq_drain(struct fw_xferq *xferq) 688 { 689 struct fw_xfer *xfer; 690 691 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 692 STAILQ_REMOVE_HEAD(&xferq->q, link); 693 #if 0 694 xferq->queued --; 695 #endif 696 xfer->resp = EAGAIN; 697 xfer->flag = FWXF_SENTERR; 698 fw_xfer_done(xfer); 699 } 700 } 701 702 void 703 fw_drain_txq(struct firewire_comm *fc) 704 { 705 struct fw_xfer *xfer, *txfer; 706 STAILQ_HEAD(, fw_xfer) xfer_drain; 707 int i; 708 709 STAILQ_INIT(&xfer_drain); 710 711 FW_GLOCK(fc); 712 fw_xferq_drain(fc->atq); 713 fw_xferq_drain(fc->ats); 714 for(i = 0; i < fc->nisodma; i++) 715 fw_xferq_drain(fc->it[i]); 716 FW_GUNLOCK(fc); 717 718 fw_mtx_lock(&fc->tlabel_lock); 719 for (i = 0; i < 0x40; i ++) 720 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 721 if (firewire_debug) 722 printf("tl=%d flag=%d\n", i, xfer->flag); 723 xfer->resp = EAGAIN; 724 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel); 725 STAILQ_INSERT_TAIL(&xfer_drain, xfer, tlabel); 726 } 727 fw_mtx_unlock(&fc->tlabel_lock); 728 729 STAILQ_FOREACH_SAFE(xfer, &xfer_drain, tlabel, txfer) 730 xfer->hand(xfer); 731 } 732 733 static void 734 fw_reset_csr(struct firewire_comm *fc) 735 { 736 int i; 737 738 CSRARC(fc, STATE_CLEAR) 739 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 740 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 741 CSRARC(fc, NODE_IDS) = 0x3f; 742 743 CSRARC(fc, TOPO_MAP + 8) = 0; 744 fc->irm = -1; 745 746 fc->max_node = -1; 747 748 for(i = 2; i < 0x100/4 - 2 ; i++){ 749 CSRARC(fc, SPED_MAP + i * 4) = 0; 750 } 751 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 752 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 753 CSRARC(fc, RESET_START) = 0; 754 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 755 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 756 CSRARC(fc, CYCLE_TIME) = 0x0; 757 CSRARC(fc, BUS_TIME) = 0x0; 758 CSRARC(fc, BUS_MGR_ID) = 0x3f; 759 CSRARC(fc, BANDWIDTH_AV) = 4915; 760 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 761 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 762 CSRARC(fc, IP_CHANNELS) = (1 << 31); 763 764 CSRARC(fc, CONF_ROM) = 0x04 << 24; 765 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 766 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 767 1 << 28 | 0xff << 16 | 0x09 << 8; 768 CSRARC(fc, CONF_ROM + 0xc) = 0; 769 770 /* DV depend CSRs see blue book */ 771 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 772 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 773 774 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 775 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 776 } 777 778 static void 779 fw_init_crom(struct firewire_comm *fc) 780 { 781 struct crom_src *src; 782 783 fc->crom_src_buf = (struct crom_src_buf *) 784 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 785 if (fc->crom_src_buf == NULL) 786 return; 787 788 src = &fc->crom_src_buf->src; 789 memset(src, 0, sizeof(struct crom_src)); 790 791 /* BUS info sample */ 792 src->hdr.info_len = 4; 793 794 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 795 796 src->businfo.irmc = 1; 797 src->businfo.cmc = 1; 798 src->businfo.isc = 1; 799 src->businfo.bmc = 1; 800 src->businfo.pmc = 0; 801 src->businfo.cyc_clk_acc = 100; 802 src->businfo.max_rec = fc->maxrec; 803 src->businfo.max_rom = MAXROM_4; 804 src->businfo.generation = 1; 805 src->businfo.link_spd = fc->speed; 806 807 src->businfo.eui64.hi = fc->eui.hi; 808 src->businfo.eui64.lo = fc->eui.lo; 809 810 STAILQ_INIT(&src->chunk_list); 811 812 fc->crom_src = src; 813 fc->crom_root = &fc->crom_src_buf->root; 814 } 815 816 static void 817 fw_reset_crom(struct firewire_comm *fc) 818 { 819 struct crom_src_buf *buf; 820 struct crom_src *src; 821 struct crom_chunk *root; 822 823 if (fc->crom_src_buf == NULL) 824 fw_init_crom(fc); 825 826 buf = fc->crom_src_buf; 827 src = fc->crom_src; 828 root = fc->crom_root; 829 830 STAILQ_INIT(&src->chunk_list); 831 832 memset(root, 0, sizeof(struct crom_chunk)); 833 crom_add_chunk(src, NULL, root, 0); 834 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 835 /* private company_id */ 836 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 837 crom_add_simple_text(src, root, &buf->vendor, PROJECT_STR); 838 crom_add_entry(root, CSRKEY_HW, OS_VER); 839 crom_add_simple_text(src, root, &buf->hw, hostname); 840 } 841 842 /* 843 * Called after bus reset. 844 */ 845 void 846 fw_busreset(struct firewire_comm *fc, uint32_t new_status) 847 { 848 struct firewire_dev_comm *fdc; 849 struct crom_src *src; 850 void *newrom; 851 852 switch(fc->status){ 853 case FWBUSMGRELECT: 854 fw_callout_stop(&fc->bmr_callout); 855 break; 856 default: 857 break; 858 } 859 fc->status = new_status; 860 fw_reset_csr(fc); 861 fw_reset_crom(fc); 862 863 FIREWIRE_CHILDREN_FOREACH_FUNC(post_busreset, fdc); 864 865 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 866 src = &fc->crom_src_buf->src; 867 crom_load(src, (uint32_t *)newrom, CROMSIZE); 868 if (memcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 869 /* bump generation and reload */ 870 src->businfo.generation ++; 871 /* generation must be between 0x2 and 0xF */ 872 if (src->businfo.generation < 2) 873 src->businfo.generation ++; 874 crom_load(src, (uint32_t *)newrom, CROMSIZE); 875 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 876 } 877 free(newrom, M_FW); 878 } 879 880 /* Call once after reboot */ 881 void fw_init(struct firewire_comm *fc) 882 { 883 int i; 884 #ifdef FW_VMACCESS 885 struct fw_xfer *xfer; 886 struct fw_bind *fwb; 887 #endif 888 889 fc->arq->queued = 0; 890 fc->ars->queued = 0; 891 fc->atq->queued = 0; 892 fc->ats->queued = 0; 893 894 fc->arq->buf = NULL; 895 fc->ars->buf = NULL; 896 fc->atq->buf = NULL; 897 fc->ats->buf = NULL; 898 899 fc->arq->flag = 0; 900 fc->ars->flag = 0; 901 fc->atq->flag = 0; 902 fc->ats->flag = 0; 903 904 STAILQ_INIT(&fc->atq->q); 905 STAILQ_INIT(&fc->ats->q); 906 907 for( i = 0 ; i < fc->nisodma ; i ++ ){ 908 fc->it[i]->queued = 0; 909 fc->ir[i]->queued = 0; 910 911 fc->it[i]->start = NULL; 912 fc->ir[i]->start = NULL; 913 914 fc->it[i]->buf = NULL; 915 fc->ir[i]->buf = NULL; 916 917 fc->it[i]->flag = FWXFERQ_STREAM; 918 fc->ir[i]->flag = FWXFERQ_STREAM; 919 920 STAILQ_INIT(&fc->it[i]->q); 921 STAILQ_INIT(&fc->ir[i]->q); 922 } 923 924 fc->arq->maxq = FWMAXQUEUE; 925 fc->ars->maxq = FWMAXQUEUE; 926 fc->atq->maxq = FWMAXQUEUE; 927 fc->ats->maxq = FWMAXQUEUE; 928 929 for( i = 0 ; i < fc->nisodma ; i++){ 930 fc->ir[i]->maxq = FWMAXQUEUE; 931 fc->it[i]->maxq = FWMAXQUEUE; 932 } 933 /* Initialize csr registers */ 934 fc->topology_map = (struct fw_topology_map *)malloc( 935 sizeof(struct fw_topology_map), 936 M_FW, M_NOWAIT | M_ZERO); 937 fc->speed_map = (struct fw_speed_map *)malloc( 938 sizeof(struct fw_speed_map), 939 M_FW, M_NOWAIT | M_ZERO); 940 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 941 CSRARC(fc, TOPO_MAP + 4) = 1; 942 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 943 CSRARC(fc, SPED_MAP + 4) = 1; 944 945 STAILQ_INIT(&fc->devices); 946 947 /* Initialize Async handlers */ 948 STAILQ_INIT(&fc->binds); 949 for( i = 0 ; i < 0x40 ; i++){ 950 STAILQ_INIT(&fc->tlabels[i]); 951 } 952 953 /* DV depend CSRs see blue book */ 954 #if 0 955 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 956 CSRARC(fc, oPCR) = 0x8000007a; 957 for(i = 4 ; i < 0x7c/4 ; i+=4){ 958 CSRARC(fc, i + oPCR) = 0x8000007a; 959 } 960 961 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 962 CSRARC(fc, iPCR) = 0x803f0000; 963 for(i = 4 ; i < 0x7c/4 ; i+=4){ 964 CSRARC(fc, i + iPCR) = 0x0; 965 } 966 #endif 967 968 fc->crom_src_buf = NULL; 969 970 #ifdef FW_VMACCESS 971 xfer = fw_xfer_alloc(); 972 if(xfer == NULL) return; 973 974 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 975 if(fwb == NULL){ 976 fw_xfer_free(xfer); 977 return; 978 } 979 xfer->hand = fw_vmaccess; 980 xfer->fc = fc; 981 xfer->sc = NULL; 982 983 fwb->start_hi = 0x2; 984 fwb->start_lo = 0; 985 fwb->addrlen = 0xffffffff; 986 fwb->xfer = xfer; 987 fw_bindadd(fc, fwb); 988 #endif 989 } 990 991 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 992 ((fwb)->end < (addr))?1:0) 993 994 /* 995 * To lookup bound process from IEEE1394 address. 996 */ 997 struct fw_bind * 998 fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 999 { 1000 u_int64_t addr; 1001 struct fw_bind *tfw, *r = NULL; 1002 1003 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 1004 FW_GLOCK(fc); 1005 STAILQ_FOREACH(tfw, &fc->binds, fclist) 1006 if (BIND_CMP(addr, tfw) == 0) { 1007 r = tfw; 1008 break; 1009 } 1010 FW_GUNLOCK(fc); 1011 return(r); 1012 } 1013 1014 /* 1015 * To bind IEEE1394 address block to process. 1016 */ 1017 int 1018 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 1019 { 1020 struct fw_bind *tfw, *prev = NULL; 1021 int r = 0; 1022 1023 if (fwb->start > fwb->end) { 1024 printf("%s: invalid range\n", __func__); 1025 return EINVAL; 1026 } 1027 1028 FW_GLOCK(fc); 1029 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 1030 if (fwb->end < tfw->start) 1031 break; 1032 prev = tfw; 1033 } 1034 if (prev == NULL) 1035 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 1036 else if (prev->end < fwb->start) 1037 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 1038 else { 1039 printf("%s: bind failed\n", __func__); 1040 r = EBUSY; 1041 } 1042 FW_GUNLOCK(fc); 1043 return (r); 1044 } 1045 1046 /* 1047 * To free IEEE1394 address block. 1048 */ 1049 int 1050 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 1051 { 1052 #if 0 1053 struct fw_xfer *xfer, *next; 1054 #endif 1055 struct fw_bind *tfw; 1056 int s; 1057 1058 s = splfw(); 1059 FW_GLOCK(fc); 1060 STAILQ_FOREACH(tfw, &fc->binds, fclist) 1061 if (tfw == fwb) { 1062 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 1063 goto found; 1064 } 1065 1066 printf("%s: no such binding\n", __func__); 1067 FW_GUNLOCK(fc); 1068 splx(s); 1069 return (1); 1070 found: 1071 #if 0 1072 /* shall we do this? */ 1073 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 1074 next = STAILQ_NEXT(xfer, link); 1075 fw_xfer_free(xfer); 1076 } 1077 STAILQ_INIT(&fwb->xferlist); 1078 #endif 1079 FW_GUNLOCK(fc); 1080 1081 splx(s); 1082 return 0; 1083 } 1084 1085 int 1086 fw_xferlist_add(struct fw_xferlist *q, struct malloc_type *type, 1087 int slen, int rlen, int n, 1088 struct firewire_comm *fc, void *sc, void (*hand)(struct fw_xfer *)) 1089 { 1090 int i, s; 1091 struct fw_xfer *xfer; 1092 1093 for (i = 0; i < n; i++) { 1094 xfer = fw_xfer_alloc_buf(type, slen, rlen); 1095 if (xfer == NULL) 1096 return (n); 1097 xfer->fc = fc; 1098 xfer->sc = sc; 1099 xfer->hand = hand; 1100 s = splfw(); 1101 STAILQ_INSERT_TAIL(q, xfer, link); 1102 splx(s); 1103 } 1104 return (n); 1105 } 1106 1107 void 1108 fw_xferlist_remove(struct fw_xferlist *q) 1109 { 1110 struct fw_xfer *xfer, *next; 1111 1112 for (xfer = STAILQ_FIRST(q); xfer != NULL; xfer = next) { 1113 next = STAILQ_NEXT(xfer, link); 1114 fw_xfer_free_buf(xfer); 1115 } 1116 STAILQ_INIT(q); 1117 } 1118 1119 /* 1120 * dump packet header 1121 */ 1122 static void 1123 fw_dump_hdr(struct fw_pkt *fp, const char *prefix) 1124 { 1125 printf("%s: dst=0x%02x tl=0x%02x rt=%d tcode=0x%x pri=0x%x " 1126 "src=0x%03x\n", prefix, 1127 fp->mode.hdr.dst & 0x3f, 1128 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tlrt & 3, 1129 fp->mode.hdr.tcode, fp->mode.hdr.pri, 1130 fp->mode.hdr.src); 1131 } 1132 1133 /* 1134 * To free transaction label. 1135 */ 1136 static void 1137 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 1138 { 1139 struct fw_xfer *txfer; 1140 int s; 1141 1142 if (xfer->tl < 0) 1143 return; 1144 1145 s = splfw(); 1146 fw_mtx_lock(&fc->tlabel_lock); 1147 #if 1 /* make sure the label is allocated */ 1148 STAILQ_FOREACH(txfer, &fc->tlabels[xfer->tl], tlabel) 1149 if(txfer == xfer) 1150 break; 1151 if (txfer == NULL) { 1152 printf("%s: the xfer is not in the queue " 1153 "(tlabel=%d, flag=0x%x)\n", 1154 __func__, xfer->tl, xfer->flag); 1155 fw_dump_hdr(&xfer->send.hdr, "send"); 1156 fw_dump_hdr(&xfer->recv.hdr, "recv"); 1157 kdb_backtrace(); 1158 fw_mtx_unlock(&fc->tlabel_lock); 1159 splx(s); 1160 return; 1161 } 1162 #endif 1163 1164 STAILQ_REMOVE(&fc->tlabels[xfer->tl], xfer, fw_xfer, tlabel); 1165 fw_mtx_unlock(&fc->tlabel_lock); 1166 splx(s); 1167 return; 1168 } 1169 1170 /* 1171 * To obtain XFER structure by transaction label. 1172 */ 1173 static struct fw_xfer * 1174 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel, int tcode) 1175 { 1176 struct fw_xfer *xfer; 1177 int s = splfw(); 1178 int req; 1179 1180 fw_mtx_lock(&fc->tlabel_lock); 1181 STAILQ_FOREACH(xfer, &fc->tlabels[tlabel], tlabel) 1182 if(xfer->send.hdr.mode.hdr.dst == node) { 1183 fw_mtx_unlock(&fc->tlabel_lock); 1184 splx(s); 1185 FW_KASSERT(xfer->tl == tlabel, 1186 ("xfer->tl 0x%x != 0x%x", xfer->tl, tlabel)); 1187 /* extra sanity check */ 1188 req = xfer->send.hdr.mode.hdr.tcode; 1189 if (xfer->fc->tcode[req].valid_res != tcode) { 1190 printf("%s: invalid response tcode " 1191 "(0x%x for 0x%x)\n", __func__, 1192 tcode, req); 1193 return(NULL); 1194 } 1195 1196 if (firewire_debug > 2) 1197 printf("fw_tl2xfer: found tl=%d\n", tlabel); 1198 return(xfer); 1199 } 1200 fw_mtx_unlock(&fc->tlabel_lock); 1201 if (firewire_debug > 1) 1202 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 1203 splx(s); 1204 return(NULL); 1205 } 1206 1207 /* 1208 * To allocate IEEE1394 XFER structure. 1209 */ 1210 struct fw_xfer * 1211 fw_xfer_alloc(struct malloc_type *type) 1212 { 1213 struct fw_xfer *xfer; 1214 1215 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 1216 if (xfer == NULL) 1217 return xfer; 1218 1219 xfer->malloc = type; 1220 1221 return xfer; 1222 } 1223 1224 struct fw_xfer * 1225 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 1226 { 1227 struct fw_xfer *xfer; 1228 1229 xfer = fw_xfer_alloc(type); 1230 if (xfer == NULL) 1231 return(NULL); 1232 xfer->send.pay_len = send_len; 1233 xfer->recv.pay_len = recv_len; 1234 if (send_len > 0) { 1235 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 1236 if (xfer->send.payload == NULL) { 1237 fw_xfer_free(xfer); 1238 return(NULL); 1239 } 1240 } 1241 if (recv_len > 0) { 1242 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 1243 if (xfer->recv.payload == NULL) { 1244 if (xfer->send.payload != NULL) 1245 free(xfer->send.payload, type); 1246 fw_xfer_free(xfer); 1247 return(NULL); 1248 } 1249 } 1250 return(xfer); 1251 } 1252 1253 /* 1254 * IEEE1394 XFER post process. 1255 */ 1256 void 1257 fw_xfer_done(struct fw_xfer *xfer) 1258 { 1259 if (xfer->hand == NULL) { 1260 printf("hand == NULL\n"); 1261 return; 1262 } 1263 1264 if (xfer->fc == NULL) 1265 panic("fw_xfer_done: why xfer->fc is NULL?"); 1266 1267 fw_tl_free(xfer->fc, xfer); 1268 xfer->hand(xfer); 1269 } 1270 1271 void 1272 fw_xfer_unload(struct fw_xfer* xfer) 1273 { 1274 int s; 1275 1276 if(xfer == NULL ) return; 1277 if(xfer->flag & FWXF_INQ){ 1278 printf("fw_xfer_free FWXF_INQ\n"); 1279 s = splfw(); 1280 FW_GLOCK(xfer->fc); 1281 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1282 #if 0 1283 xfer->q->queued --; 1284 #endif 1285 FW_GUNLOCK(xfer->fc); 1286 splx(s); 1287 } 1288 if (xfer->fc != NULL) { 1289 #if 1 1290 if(xfer->flag == FWXF_START) 1291 /* 1292 * This could happen if: 1293 * 1. We call fwohci_arcv() before fwohci_txd(). 1294 * 2. firewire_watch() is called. 1295 */ 1296 printf("fw_xfer_free FWXF_START\n"); 1297 #endif 1298 } 1299 xfer->flag = FWXF_INIT; 1300 xfer->resp = 0; 1301 } 1302 /* 1303 * To free IEEE1394 XFER structure. 1304 */ 1305 void 1306 fw_xfer_free_buf( struct fw_xfer* xfer) 1307 { 1308 if (xfer == NULL) { 1309 printf("%s: xfer == NULL\n", __func__); 1310 return; 1311 } 1312 fw_xfer_unload(xfer); 1313 if(xfer->send.payload != NULL){ 1314 free(xfer->send.payload, xfer->malloc); 1315 } 1316 if(xfer->recv.payload != NULL){ 1317 free(xfer->recv.payload, xfer->malloc); 1318 } 1319 free(xfer, xfer->malloc); 1320 } 1321 1322 void 1323 fw_xfer_free( struct fw_xfer* xfer) 1324 { 1325 if (xfer == NULL) { 1326 printf("%s: xfer == NULL\n", __func__); 1327 return; 1328 } 1329 fw_xfer_unload(xfer); 1330 free(xfer, xfer->malloc); 1331 } 1332 1333 void 1334 fw_asy_callback_free(struct fw_xfer *xfer) 1335 { 1336 #if 0 1337 printf("asyreq done flag=%d resp=%d\n", 1338 xfer->flag, xfer->resp); 1339 #endif 1340 fw_xfer_free(xfer); 1341 } 1342 1343 /* 1344 * To configure PHY. 1345 */ 1346 static void 1347 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1348 { 1349 struct fw_xfer *xfer; 1350 struct fw_pkt *fp; 1351 1352 fc->status = FWBUSPHYCONF; 1353 1354 xfer = fw_xfer_alloc(M_FWXFER); 1355 if (xfer == NULL) 1356 return; 1357 xfer->fc = fc; 1358 xfer->hand = fw_asy_callback_free; 1359 1360 fp = &xfer->send.hdr; 1361 fp->mode.ld[1] = 0; 1362 if (root_node >= 0) 1363 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1364 if (gap_count >= 0) 1365 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1366 fp->mode.ld[2] = ~fp->mode.ld[1]; 1367 /* XXX Dangerous, how to pass PHY packet to device driver */ 1368 fp->mode.common.tcode |= FWTCODE_PHY; 1369 1370 if (firewire_debug) 1371 printf("send phy_config root_node=%d gap_count=%d\n", 1372 root_node, gap_count); 1373 fw_asyreq(fc, -1, xfer); 1374 } 1375 1376 #if 0 1377 /* 1378 * Dump self ID. 1379 */ 1380 static void 1381 fw_print_sid(uint32_t sid) 1382 { 1383 union fw_self_id *s; 1384 s = (union fw_self_id *) &sid; 1385 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1386 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1387 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1388 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1389 s->p0.power_class, s->p0.port0, s->p0.port1, 1390 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1391 } 1392 #endif 1393 1394 /* 1395 * To receive self ID. 1396 */ 1397 void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1398 { 1399 uint32_t *p; 1400 union fw_self_id *self_id; 1401 u_int i, j, node, c_port = 0, i_branch = 0; 1402 1403 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1404 fc->max_node = fc->nodeid & 0x3f; 1405 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1406 fc->status = FWBUSCYMELECT; 1407 fc->topology_map->crc_len = 2; 1408 fc->topology_map->generation ++; 1409 fc->topology_map->self_id_count = 0; 1410 fc->topology_map->node_count = 0; 1411 fc->speed_map->generation ++; 1412 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1413 self_id = &fc->topology_map->self_id[0]; 1414 for(i = 0; i < fc->sid_cnt; i ++){ 1415 if (sid[1] != ~sid[0]) { 1416 printf("fw_sidrcv: invalid self-id packet\n"); 1417 sid += 2; 1418 continue; 1419 } 1420 *self_id = *((union fw_self_id *)sid); 1421 fc->topology_map->crc_len++; 1422 if(self_id->p0.sequel == 0){ 1423 fc->topology_map->node_count ++; 1424 c_port = 0; 1425 #if 0 1426 fw_print_sid(sid[0]); 1427 #endif 1428 node = self_id->p0.phy_id; 1429 if(fc->max_node < node){ 1430 fc->max_node = self_id->p0.phy_id; 1431 } 1432 /* XXX I'm not sure this is the right speed_map */ 1433 fc->speed_map->speed[node][node] 1434 = self_id->p0.phy_speed; 1435 for (j = 0; j < node; j ++) { 1436 fc->speed_map->speed[j][node] 1437 = fc->speed_map->speed[node][j] 1438 = min(fc->speed_map->speed[j][j], 1439 self_id->p0.phy_speed); 1440 } 1441 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1442 (self_id->p0.link_active && self_id->p0.contender)) { 1443 fc->irm = self_id->p0.phy_id; 1444 } 1445 if(self_id->p0.port0 >= 0x2){ 1446 c_port++; 1447 } 1448 if(self_id->p0.port1 >= 0x2){ 1449 c_port++; 1450 } 1451 if(self_id->p0.port2 >= 0x2){ 1452 c_port++; 1453 } 1454 } 1455 if(c_port > 2){ 1456 i_branch += (c_port - 2); 1457 } 1458 sid += 2; 1459 self_id++; 1460 fc->topology_map->self_id_count ++; 1461 } 1462 fw_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1463 /* CRC */ 1464 fc->topology_map->crc = fw_crc16( 1465 (uint32_t *)&fc->topology_map->generation, 1466 fc->topology_map->crc_len * 4); 1467 fc->speed_map->crc = fw_crc16( 1468 (uint32_t *)&fc->speed_map->generation, 1469 fc->speed_map->crc_len * 4); 1470 /* byteswap and copy to CSR */ 1471 p = (uint32_t *)fc->topology_map; 1472 for (i = 0; i <= fc->topology_map->crc_len; i++) 1473 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1474 p = (uint32_t *)fc->speed_map; 1475 CSRARC(fc, SPED_MAP) = htonl(*p++); 1476 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1477 /* don't byte-swap uint8_t array */ 1478 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1479 1480 fc->max_hop = fc->max_node - i_branch; 1481 aprint_normal(", maxhop <= %d", fc->max_hop); 1482 1483 if(fc->irm == -1 ){ 1484 aprint_normal(", Not found IRM capable node"); 1485 }else{ 1486 aprint_normal(", cable IRM = %d", fc->irm); 1487 if (fc->irm == fc->nodeid) 1488 aprint_normal(" (me)"); 1489 } 1490 aprint_normal("\n"); 1491 1492 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1493 if (fc->irm == fc->nodeid) { 1494 fc->status = FWBUSMGRDONE; 1495 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1496 fw_bmr(fc); 1497 } else { 1498 fc->status = FWBUSMGRELECT; 1499 fw_callout_reset(&fc->bmr_callout, hz/8, 1500 (void *)fw_try_bmr, (void *)fc); 1501 } 1502 } else 1503 fc->status = FWBUSMGRDONE; 1504 1505 fw_callout_reset(&fc->busprobe_callout, hz/4, 1506 (void *)fw_bus_probe, (void *)fc); 1507 } 1508 1509 /* 1510 * To probe devices on the IEEE1394 bus. 1511 */ 1512 static void 1513 fw_bus_probe(struct firewire_comm *fc) 1514 { 1515 int s; 1516 struct fw_device *fwdev; 1517 1518 s = splfw(); 1519 fc->status = FWBUSEXPLORE; 1520 1521 /* Invalidate all devices, just after bus reset. */ 1522 STAILQ_FOREACH(fwdev, &fc->devices, link) 1523 if (fwdev->status != FWDEVINVAL) { 1524 fwdev->status = FWDEVINVAL; 1525 fwdev->rcnt = 0; 1526 } 1527 splx(s); 1528 1529 wakeup((void *)fc); 1530 } 1531 1532 static int 1533 fw_explore_read_quads(struct fw_device *fwdev, int offset, 1534 uint32_t *quad, int n) 1535 { 1536 struct fw_xfer *xfer; 1537 uint32_t tmp; 1538 int i, error; 1539 1540 1541 for (i = 0; i < n; i ++, offset += sizeof(uint32_t)) { 1542 xfer = fwmem_read_quad(fwdev, NULL, -1, 1543 0xffff, 0xf0000000 | offset, (void *)&tmp, 1544 fw_xferwake); 1545 if (xfer == NULL) 1546 return (-1); 1547 fw_xferwait(xfer); 1548 1549 if (xfer->resp == 0) 1550 quad[i] = ntohl(tmp); 1551 1552 error = xfer->resp; 1553 fw_xfer_free(xfer); 1554 if (error) 1555 return (error); 1556 } 1557 return (0); 1558 } 1559 1560 1561 static int 1562 fw_explore_csrblock(struct fw_device *fwdev, int offset, int recur) 1563 { 1564 int err, i, off; 1565 struct csrdirectory *dir; 1566 struct csrreg *reg; 1567 1568 1569 dir = (struct csrdirectory *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1570 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1571 (uint32_t *)dir, 1); 1572 if (err) 1573 return (-1); 1574 1575 offset += sizeof(uint32_t); 1576 reg = (struct csrreg *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1577 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1578 (uint32_t *)reg, dir->crc_len); 1579 if (err) 1580 return (-1); 1581 1582 /* XXX check CRC */ 1583 1584 off = CSRROMOFF + offset + sizeof(uint32_t) * (dir->crc_len - 1); 1585 if (fwdev->rommax < off) 1586 fwdev->rommax = off; 1587 1588 if (recur == 0) 1589 return (0); 1590 1591 for (i = 0; i < dir->crc_len; i ++, offset += sizeof(uint32_t)) { 1592 if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_D) 1593 recur = 1; 1594 else if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_L) 1595 recur = 0; 1596 else 1597 continue; 1598 1599 off = offset + reg[i].val * sizeof(uint32_t); 1600 if (off > CROMSIZE) { 1601 printf("%s: invalid offset %d\n", __func__, off); 1602 return(-1); 1603 } 1604 err = fw_explore_csrblock(fwdev, off, recur); 1605 if (err) 1606 return (-1); 1607 } 1608 return (0); 1609 } 1610 1611 static int 1612 fw_explore_node(struct fw_device *dfwdev) 1613 { 1614 struct firewire_comm *fc; 1615 struct fw_device *fwdev, *pfwdev, *tfwdev; 1616 uint32_t *csr; 1617 struct csrhdr *hdr; 1618 struct bus_info *binfo; 1619 int err, node, spd; 1620 1621 fc = dfwdev->fc; 1622 csr = dfwdev->csrrom; 1623 node = dfwdev->dst; 1624 1625 /* First quad */ 1626 err = fw_explore_read_quads(dfwdev, CSRROMOFF, &csr[0], 1); 1627 if (err) 1628 return (-1); 1629 hdr = (struct csrhdr *)&csr[0]; 1630 if (hdr->info_len != 4) { 1631 if (firewire_debug) 1632 printf("node%d: wrong bus info len(%d)\n", 1633 node, hdr->info_len); 1634 return (-1); 1635 } 1636 1637 /* bus info */ 1638 err = fw_explore_read_quads(dfwdev, CSRROMOFF + 0x04, &csr[1], 4); 1639 if (err) 1640 return (-1); 1641 binfo = (struct bus_info *)&csr[1]; 1642 if (binfo->bus_name != CSR_BUS_NAME_IEEE1394) { 1643 if (firewire_debug) 1644 printf("node%d: invalid bus name 0x%08x\n", 1645 node, binfo->bus_name); 1646 return (-1); 1647 } 1648 spd = fc->speed_map->speed[fc->nodeid][node]; 1649 STAILQ_FOREACH(fwdev, &fc->devices, link) 1650 if (FW_EUI64_EQUAL(fwdev->eui, binfo->eui64)) 1651 break; 1652 if (fwdev == NULL) { 1653 /* new device */ 1654 fwdev = malloc(sizeof(struct fw_device), M_FW, 1655 M_NOWAIT | M_ZERO); 1656 if (fwdev == NULL) { 1657 if (firewire_debug) 1658 printf("node%d: no memory\n", node); 1659 return (-1); 1660 } 1661 fwdev->fc = fc; 1662 fwdev->eui = binfo->eui64; 1663 fwdev->status = FWDEVNEW; 1664 /* insert into sorted fwdev list */ 1665 pfwdev = NULL; 1666 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1667 if (tfwdev->eui.hi > fwdev->eui.hi || 1668 (tfwdev->eui.hi == fwdev->eui.hi && 1669 tfwdev->eui.lo > fwdev->eui.lo)) 1670 break; 1671 pfwdev = tfwdev; 1672 } 1673 if (pfwdev == NULL) 1674 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1675 else 1676 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1677 1678 fw_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1679 fw_linkspeed[spd], 1680 fwdev->eui.hi, fwdev->eui.lo); 1681 1682 } else 1683 fwdev->status = FWDEVINIT; 1684 fwdev->dst = node; 1685 fwdev->speed = spd; 1686 1687 /* unchanged ? */ 1688 if (memcmp(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5) == 0) { 1689 if (firewire_debug) 1690 printf("node%d: crom unchanged\n", node); 1691 return (0); 1692 } 1693 1694 memset(&fwdev->csrrom[0], 0, CROMSIZE); 1695 1696 /* copy first quad and bus info block */ 1697 bcopy(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5); 1698 fwdev->rommax = CSRROMOFF + sizeof(uint32_t) * 4; 1699 1700 err = fw_explore_csrblock(fwdev, 0x14, 1); /* root directory */ 1701 1702 if (err) { 1703 fwdev->status = FWDEVINVAL; 1704 fwdev->csrrom[0] = 0; 1705 } 1706 return (err); 1707 1708 } 1709 1710 /* 1711 * Find the self_id packet for a node, ignoring sequels. 1712 */ 1713 static union fw_self_id * 1714 fw_find_self_id(struct firewire_comm *fc, int node) 1715 { 1716 uint32_t i; 1717 union fw_self_id *s; 1718 1719 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1720 s = &fc->topology_map->self_id[i]; 1721 if (s->p0.sequel) 1722 continue; 1723 if (s->p0.phy_id == node) 1724 return s; 1725 } 1726 return 0; 1727 } 1728 1729 static void 1730 fw_explore(struct firewire_comm *fc) 1731 { 1732 int node, err, s, i, todo, todo2, trys; 1733 char nodes[63]; 1734 struct fw_device *dfwdev; 1735 union fw_self_id *fwsid; 1736 1737 todo = 0; 1738 dfwdev = malloc(sizeof(*dfwdev), M_TEMP, M_NOWAIT); 1739 if (dfwdev == NULL) 1740 return; 1741 /* setup dummy fwdev */ 1742 dfwdev->fc = fc; 1743 dfwdev->speed = 0; 1744 dfwdev->maxrec = 8; /* 512 */ 1745 dfwdev->status = FWDEVINIT; 1746 1747 for (node = 0; node <= fc->max_node; node ++) { 1748 /* We don't probe myself and linkdown nodes */ 1749 if (node == fc->nodeid) 1750 continue; 1751 fwsid = fw_find_self_id(fc, node); 1752 if (!fwsid || !fwsid->p0.link_active) { 1753 if (firewire_debug) 1754 printf("node%d: link down\n", node); 1755 continue; 1756 } 1757 nodes[todo++] = node; 1758 } 1759 1760 s = splfw(); 1761 for (trys = 0; todo > 0 && trys < 3; trys ++) { 1762 todo2 = 0; 1763 for (i = 0; i < todo; i ++) { 1764 dfwdev->dst = nodes[i]; 1765 err = fw_explore_node(dfwdev); 1766 if (err) 1767 nodes[todo2++] = nodes[i]; 1768 if (firewire_debug) 1769 printf("%s: node %d, err = %d\n", 1770 __func__, node, err); 1771 } 1772 todo = todo2; 1773 } 1774 splx(s); 1775 free(dfwdev, M_TEMP); 1776 } 1777 1778 static void 1779 fw_bus_probe_thread(void *arg) 1780 { 1781 struct firewire_comm *fc; 1782 1783 fc = (struct firewire_comm *)arg; 1784 1785 fw_config_pending_decr(); 1786 1787 fw_mtx_lock(&fc->wait_lock); 1788 while (fc->status != FWBUSDETACH) { 1789 if (fc->status == FWBUSEXPLORE) { 1790 fw_mtx_unlock(&fc->wait_lock); 1791 fw_explore(fc); 1792 fc->status = FWBUSEXPDONE; 1793 if (firewire_debug) 1794 printf("bus_explore done\n"); 1795 fw_attach_dev(fc); 1796 fw_mtx_lock(&fc->wait_lock); 1797 } 1798 fw_msleep((void *)fc, &fc->wait_lock, PWAIT|PCATCH, "-", 0); 1799 } 1800 fw_mtx_unlock(&fc->wait_lock); 1801 fw_kthread_exit(0); 1802 } 1803 1804 1805 /* 1806 * To attach sub-devices layer onto IEEE1394 bus. 1807 */ 1808 static void 1809 fw_attach_dev(struct firewire_comm *fc) 1810 { 1811 struct fw_device *fwdev, *next; 1812 struct firewire_dev_comm *fdc; 1813 struct fw_attach_args fwa; 1814 1815 fwa.name = "sbp"; 1816 fwa.fc = fc; 1817 1818 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1819 next = STAILQ_NEXT(fwdev, link); 1820 switch (fwdev->status) { 1821 case FWDEVNEW: 1822 FIREWIRE_SBP_ATTACH; 1823 1824 case FWDEVINIT: 1825 case FWDEVATTACHED: 1826 fwdev->status = FWDEVATTACHED; 1827 break; 1828 1829 case FWDEVINVAL: 1830 fwdev->rcnt ++; 1831 break; 1832 1833 default: 1834 /* XXX */ 1835 break; 1836 } 1837 } 1838 1839 FIREWIRE_CHILDREN_FOREACH_FUNC(post_explore, fdc); 1840 1841 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1842 next = STAILQ_NEXT(fwdev, link); 1843 if (fwdev->rcnt > 0 && fwdev->rcnt > hold_count) { 1844 /* 1845 * Remove devices which have not been seen 1846 * for a while. 1847 */ 1848 FIREWIRE_SBP_DETACH; 1849 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1850 free(fwdev, M_FW); 1851 } 1852 } 1853 1854 return; 1855 } 1856 1857 /* 1858 * To allocate unique transaction label. 1859 */ 1860 static int 1861 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1862 { 1863 u_int dst, new_tlabel; 1864 struct fw_xfer *txfer; 1865 int s; 1866 1867 dst = xfer->send.hdr.mode.hdr.dst & 0x3f; 1868 s = splfw(); 1869 fw_mtx_lock(&fc->tlabel_lock); 1870 new_tlabel = (fc->last_tlabel[dst] + 1) & 0x3f; 1871 STAILQ_FOREACH(txfer, &fc->tlabels[new_tlabel], tlabel) 1872 if ((txfer->send.hdr.mode.hdr.dst & 0x3f) == dst) 1873 break; 1874 if(txfer == NULL) { 1875 fc->last_tlabel[dst] = new_tlabel; 1876 STAILQ_INSERT_TAIL(&fc->tlabels[new_tlabel], xfer, tlabel); 1877 fw_mtx_unlock(&fc->tlabel_lock); 1878 splx(s); 1879 xfer->tl = new_tlabel; 1880 xfer->send.hdr.mode.hdr.tlrt = new_tlabel << 2; 1881 if (firewire_debug > 1) 1882 printf("fw_get_tlabel: dst=%d tl=%d\n", dst, new_tlabel); 1883 return (new_tlabel); 1884 } 1885 fw_mtx_unlock(&fc->tlabel_lock); 1886 splx(s); 1887 1888 if (firewire_debug > 1) 1889 printf("fw_get_tlabel: no free tlabel\n"); 1890 return (-1); 1891 } 1892 1893 static void 1894 fw_rcv_copy(struct fw_rcv_buf *rb) 1895 { 1896 struct fw_pkt *pkt; 1897 u_char *p; 1898 const struct tcode_info *tinfo; 1899 u_int res, i, len, plen; 1900 1901 rb->xfer->recv.spd = rb->spd; 1902 1903 pkt = (struct fw_pkt *)rb->vec->iov_base; 1904 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1905 1906 /* Copy header */ 1907 p = (u_char *)&rb->xfer->recv.hdr; 1908 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1909 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1910 rb->vec->iov_len -= tinfo->hdr_len; 1911 1912 /* Copy payload */ 1913 p = (u_char *)rb->xfer->recv.payload; 1914 res = rb->xfer->recv.pay_len; 1915 1916 /* special handling for RRESQ */ 1917 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1918 p != NULL && res >= sizeof(uint32_t)) { 1919 *(uint32_t *)p = pkt->mode.rresq.data; 1920 rb->xfer->recv.pay_len = sizeof(uint32_t); 1921 return; 1922 } 1923 1924 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1925 return; 1926 1927 plen = pkt->mode.rresb.len; 1928 1929 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1930 len = MIN(rb->vec->iov_len, plen); 1931 if (res < len) { 1932 printf("rcv buffer(%d) is %d bytes short.\n", 1933 rb->xfer->recv.pay_len, len - res); 1934 len = res; 1935 } 1936 if (p) { 1937 bcopy(rb->vec->iov_base, p, len); 1938 p += len; 1939 } 1940 res -= len; 1941 plen -= len; 1942 if (res == 0 || plen == 0) 1943 break; 1944 } 1945 rb->xfer->recv.pay_len -= res; 1946 1947 } 1948 1949 /* 1950 * Generic packet receiving process. 1951 */ 1952 void 1953 fw_rcv(struct fw_rcv_buf *rb) 1954 { 1955 struct fw_pkt *fp, *resfp; 1956 struct fw_bind *bind; 1957 int tcode; 1958 int i, len, oldstate; 1959 #if 0 1960 { 1961 uint32_t *qld; 1962 int i; 1963 qld = (uint32_t *)buf; 1964 printf("spd %d len:%d\n", spd, len); 1965 for( i = 0 ; i <= len && i < 32; i+= 4){ 1966 printf("0x%08x ", ntohl(qld[i/4])); 1967 if((i % 16) == 15) printf("\n"); 1968 } 1969 if((i % 16) != 15) printf("\n"); 1970 } 1971 #endif 1972 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1973 tcode = fp->mode.common.tcode; 1974 switch (tcode) { 1975 case FWTCODE_WRES: 1976 case FWTCODE_RRESQ: 1977 case FWTCODE_RRESB: 1978 case FWTCODE_LRES: 1979 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1980 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tcode); 1981 if(rb->xfer == NULL) { 1982 printf("fw_rcv: unknown response " 1983 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1984 tcode_str[tcode], tcode, 1985 fp->mode.hdr.src, 1986 fp->mode.hdr.tlrt >> 2, 1987 fp->mode.hdr.tlrt & 3, 1988 fp->mode.rresq.data); 1989 #if 0 1990 printf("try ad-hoc work around!!\n"); 1991 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1992 (fp->mode.hdr.tlrt >> 2)^3); 1993 if (rb->xfer == NULL) { 1994 printf("no use...\n"); 1995 return; 1996 } 1997 #else 1998 return; 1999 #endif 2000 } 2001 fw_rcv_copy(rb); 2002 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 2003 rb->xfer->resp = EIO; 2004 else 2005 rb->xfer->resp = 0; 2006 /* make sure the packet is drained in AT queue */ 2007 oldstate = rb->xfer->flag; 2008 rb->xfer->flag = FWXF_RCVD; 2009 switch (oldstate) { 2010 case FWXF_SENT: 2011 fw_xfer_done(rb->xfer); 2012 break; 2013 case FWXF_START: 2014 #if 0 2015 if (firewire_debug) 2016 printf("not sent yet tl=%x\n", rb->xfer->tl); 2017 #endif 2018 break; 2019 default: 2020 printf("unexpected flag 0x%02x\n", rb->xfer->flag); 2021 } 2022 return; 2023 case FWTCODE_WREQQ: 2024 case FWTCODE_WREQB: 2025 case FWTCODE_RREQQ: 2026 case FWTCODE_RREQB: 2027 case FWTCODE_LREQ: 2028 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 2029 fp->mode.rreqq.dest_lo); 2030 if(bind == NULL){ 2031 #if 1 2032 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 2033 #if defined(__DragonFly__) || \ 2034 (defined(__FreeBSD__) && __FreeBSD_version < 500000) 2035 " src=0x%x data=%lx\n", 2036 #else 2037 " src=0x%x data=%x\n", 2038 #endif 2039 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 2040 tcode_str[tcode], tcode, 2041 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 2042 #endif 2043 if (rb->fc->status == FWBUSINIT) { 2044 printf("fw_rcv: cannot respond(bus reset)!\n"); 2045 return; 2046 } 2047 rb->xfer = fw_xfer_alloc(M_FWXFER); 2048 if(rb->xfer == NULL){ 2049 return; 2050 } 2051 rb->xfer->send.spd = rb->spd; 2052 rb->xfer->send.pay_len = 0; 2053 resfp = &rb->xfer->send.hdr; 2054 switch (tcode) { 2055 case FWTCODE_WREQQ: 2056 case FWTCODE_WREQB: 2057 resfp->mode.hdr.tcode = FWTCODE_WRES; 2058 break; 2059 case FWTCODE_RREQQ: 2060 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 2061 break; 2062 case FWTCODE_RREQB: 2063 resfp->mode.hdr.tcode = FWTCODE_RRESB; 2064 break; 2065 case FWTCODE_LREQ: 2066 resfp->mode.hdr.tcode = FWTCODE_LRES; 2067 break; 2068 } 2069 resfp->mode.hdr.dst = fp->mode.hdr.src; 2070 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 2071 resfp->mode.hdr.pri = fp->mode.hdr.pri; 2072 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 2073 resfp->mode.rresb.extcode = 0; 2074 resfp->mode.rresb.len = 0; 2075 /* 2076 rb->xfer->hand = fw_xferwake; 2077 */ 2078 rb->xfer->hand = fw_xfer_free; 2079 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 2080 fw_xfer_free(rb->xfer); 2081 return; 2082 } 2083 return; 2084 } 2085 len = 0; 2086 for (i = 0; i < rb->nvec; i ++) 2087 len += rb->vec[i].iov_len; 2088 rb->xfer = STAILQ_FIRST(&bind->xferlist); 2089 if (rb->xfer == NULL) { 2090 #if 1 2091 printf("Discard a packet for this bind.\n"); 2092 #endif 2093 return; 2094 } 2095 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 2096 fw_rcv_copy(rb); 2097 rb->xfer->hand(rb->xfer); 2098 return; 2099 #if 0 /* shouldn't happen ?? or for GASP */ 2100 case FWTCODE_STREAM: 2101 { 2102 struct fw_xferq *xferq; 2103 2104 xferq = rb->fc->ir[sub]; 2105 #if 0 2106 printf("stream rcv dma %d len %d off %d spd %d\n", 2107 sub, len, off, spd); 2108 #endif 2109 if(xferq->queued >= xferq->maxq) { 2110 printf("receive queue is full\n"); 2111 return; 2112 } 2113 /* XXX get xfer from xfer queue, we don't need copy for 2114 per packet mode */ 2115 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 2116 vec[0].iov_len); 2117 if (rb->xfer == NULL) 2118 return; 2119 fw_rcv_copy(rb) 2120 s = splfw(); 2121 xferq->queued++; 2122 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 2123 splx(s); 2124 sc = device_get_softc(rb->fc->bdev); 2125 #if defined(__DragonFly__) || \ 2126 (defined(__FreeBSD__) && __FreeBSD_version < 500000) 2127 if (&xferq->rsel.si_pid != 0) 2128 #else 2129 if (SEL_WAITING(&xferq->rsel)) 2130 #endif 2131 selwakeuppri(&xferq->rsel, FWPRI); 2132 if (xferq->flag & FWXFERQ_WAKEUP) { 2133 xferq->flag &= ~FWXFERQ_WAKEUP; 2134 wakeup((void *)xferq); 2135 } 2136 if (xferq->flag & FWXFERQ_HANDLER) { 2137 xferq->hand(xferq); 2138 } 2139 return; 2140 break; 2141 } 2142 #endif 2143 default: 2144 printf("fw_rcv: unknow tcode %d\n", tcode); 2145 break; 2146 } 2147 } 2148 2149 /* 2150 * Post process for Bus Manager election process. 2151 */ 2152 static void 2153 fw_try_bmr_callback(struct fw_xfer *xfer) 2154 { 2155 struct firewire_comm *fc; 2156 int bmr; 2157 2158 if (xfer == NULL) 2159 return; 2160 fc = xfer->fc; 2161 if (xfer->resp != 0) 2162 goto error; 2163 if (xfer->recv.payload == NULL) 2164 goto error; 2165 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2166 goto error; 2167 2168 bmr = ntohl(xfer->recv.payload[0]); 2169 if (bmr == 0x3f) 2170 bmr = fc->nodeid; 2171 2172 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2173 fw_xfer_free_buf(xfer); 2174 fw_bmr(fc); 2175 return; 2176 2177 error: 2178 fw_printf(fc->bdev, "bus manager election failed\n"); 2179 fw_xfer_free_buf(xfer); 2180 } 2181 2182 2183 /* 2184 * To candidate Bus Manager election process. 2185 */ 2186 static void 2187 fw_try_bmr(void *arg) 2188 { 2189 struct fw_xfer *xfer; 2190 struct firewire_comm *fc = (struct firewire_comm *)arg; 2191 struct fw_pkt *fp; 2192 int err = 0; 2193 2194 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2195 if(xfer == NULL){ 2196 return; 2197 } 2198 xfer->send.spd = 0; 2199 fc->status = FWBUSMGRELECT; 2200 2201 fp = &xfer->send.hdr; 2202 fp->mode.lreq.dest_hi = 0xffff; 2203 fp->mode.lreq.tlrt = 0; 2204 fp->mode.lreq.tcode = FWTCODE_LREQ; 2205 fp->mode.lreq.pri = 0; 2206 fp->mode.lreq.src = 0; 2207 fp->mode.lreq.len = 8; 2208 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2209 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2210 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2211 xfer->send.payload[0] = htonl(0x3f); 2212 xfer->send.payload[1] = htonl(fc->nodeid); 2213 xfer->hand = fw_try_bmr_callback; 2214 2215 err = fw_asyreq(fc, -1, xfer); 2216 if(err){ 2217 fw_xfer_free_buf(xfer); 2218 return; 2219 } 2220 return; 2221 } 2222 2223 #ifdef FW_VMACCESS 2224 /* 2225 * Software implementation for physical memory block access. 2226 * XXX:Too slow, usef for debug purpose only. 2227 */ 2228 static void 2229 fw_vmaccess(struct fw_xfer *xfer){ 2230 struct fw_pkt *rfp, *sfp = NULL; 2231 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2232 2233 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2234 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2235 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2236 if(xfer->resp != 0){ 2237 fw_xfer_free( xfer); 2238 return; 2239 } 2240 if(xfer->recv.buf == NULL){ 2241 fw_xfer_free( xfer); 2242 return; 2243 } 2244 rfp = (struct fw_pkt *)xfer->recv.buf; 2245 switch(rfp->mode.hdr.tcode){ 2246 /* XXX need fix for 64bit arch */ 2247 case FWTCODE_WREQB: 2248 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2249 xfer->send.len = 12; 2250 sfp = (struct fw_pkt *)xfer->send.buf; 2251 bcopy(rfp->mode.wreqb.payload, 2252 (void *)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2253 sfp->mode.wres.tcode = FWTCODE_WRES; 2254 sfp->mode.wres.rtcode = 0; 2255 break; 2256 case FWTCODE_WREQQ: 2257 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2258 xfer->send.len = 12; 2259 sfp->mode.wres.tcode = FWTCODE_WRES; 2260 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2261 sfp->mode.wres.rtcode = 0; 2262 break; 2263 case FWTCODE_RREQB: 2264 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2265 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2266 sfp = (struct fw_pkt *)xfer->send.buf; 2267 bcopy((void *)ntohl(rfp->mode.rreqb.dest_lo), 2268 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2269 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2270 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2271 sfp->mode.rresb.rtcode = 0; 2272 sfp->mode.rresb.extcode = 0; 2273 break; 2274 case FWTCODE_RREQQ: 2275 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2276 xfer->send.len = 16; 2277 sfp = (struct fw_pkt *)xfer->send.buf; 2278 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2279 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2280 sfp->mode.rresb.rtcode = 0; 2281 break; 2282 default: 2283 fw_xfer_free( xfer); 2284 return; 2285 } 2286 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2287 xfer->dst = ntohs(rfp->mode.hdr.src); 2288 xfer->hand = fw_xfer_free; 2289 2290 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2291 sfp->mode.hdr.pri = 0; 2292 2293 fw_asyreq(xfer->fc, -1, xfer); 2294 /**/ 2295 return; 2296 } 2297 #endif 2298 2299 /* 2300 * CRC16 check-sum for IEEE1394 register blocks. 2301 */ 2302 uint16_t 2303 fw_crc16(uint32_t *ptr, uint32_t len){ 2304 uint32_t i, sum, crc = 0; 2305 int shift; 2306 len = (len + 3) & ~3; 2307 for(i = 0 ; i < len ; i+= 4){ 2308 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2309 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2310 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2311 } 2312 crc &= 0xffff; 2313 } 2314 return((uint16_t) crc); 2315 } 2316 2317 static int 2318 fw_bmr(struct firewire_comm *fc) 2319 { 2320 struct fw_device fwdev; 2321 union fw_self_id *self_id; 2322 int cmstr; 2323 uint32_t quad; 2324 2325 /* Check to see if the current root node is cycle master capable */ 2326 self_id = fw_find_self_id(fc, fc->max_node); 2327 if (fc->max_node > 0) { 2328 /* XXX check cmc bit of businfo block rather than contender */ 2329 if (self_id->p0.link_active && self_id->p0.contender) 2330 cmstr = fc->max_node; 2331 else { 2332 fw_printf(fc->bdev, 2333 "root node is not cycle master capable\n"); 2334 /* XXX shall we be the cycle master? */ 2335 cmstr = fc->nodeid; 2336 /* XXX need bus reset */ 2337 } 2338 } else 2339 cmstr = -1; 2340 2341 fw_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2342 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2343 /* We are not the bus manager */ 2344 aprint_normal("\n"); 2345 return(0); 2346 } 2347 aprint_normal("(me)\n"); 2348 2349 /* Optimize gapcount */ 2350 if(fc->max_hop <= MAX_GAPHOP ) 2351 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2352 /* If we are the cycle master, nothing to do */ 2353 if (cmstr == fc->nodeid || cmstr == -1) 2354 return 0; 2355 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2356 memset(&fwdev, 0, sizeof(fwdev)); 2357 fwdev.fc = fc; 2358 fwdev.dst = cmstr; 2359 fwdev.speed = 0; 2360 fwdev.maxrec = 8; /* 512 */ 2361 fwdev.status = FWDEVINIT; 2362 /* Set cmstr bit on the cycle master */ 2363 quad = htonl(1 << 8); 2364 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2365 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2366 2367 return 0; 2368 } 2369 2370 int 2371 fw_open_isodma(struct firewire_comm *fc, int tx) 2372 { 2373 struct fw_xferq **xferqa; 2374 struct fw_xferq *xferq; 2375 int i; 2376 2377 if (tx) 2378 xferqa = &fc->it[0]; 2379 else 2380 xferqa = &fc->ir[0]; 2381 2382 FW_GLOCK(fc); 2383 for (i = 0; i < fc->nisodma; i ++) { 2384 xferq = xferqa[i]; 2385 if ((xferq->flag & FWXFERQ_OPEN) == 0) { 2386 xferq->flag |= FWXFERQ_OPEN; 2387 break; 2388 } 2389 } 2390 if (i == fc->nisodma) { 2391 printf("no free dma channel (tx=%d)\n", tx); 2392 i = -1; 2393 } 2394 FW_GUNLOCK(fc); 2395 return (i); 2396 } 2397 2398 #if defined(__FreeBSD__) 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); 2434 #endif 2435
Indexes created Tue Sep 23 07:09:52 GMT 2025