firewire.c revision 1.14.6.4
1 /* $NetBSD: firewire.c,v 1.14.6.4 2007/12/08 16:21:11 jmcneill 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 #if defined(__FreeBSD__) 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/types.h> 43 44 #include <sys/kernel.h> 45 #include <sys/module.h> 46 #include <sys/malloc.h> 47 #include <sys/conf.h> 48 #include <sys/sysctl.h> 49 #include <sys/kthread.h> 50 51 #include <sys/kdb.h> 52 53 #if defined(__DragonFly__) || __FreeBSD_version < 500000 54 #include <machine/clock.h> /* for DELAY() */ 55 #endif 56 57 #include <sys/bus.h> /* used by smbus and newbus */ 58 #include <sys/bus.h> 59 60 #ifdef __DragonFly__ 61 #include "fw_port.h" 62 #include "firewire.h" 63 #include "firewirereg.h" 64 #include "fwmem.h" 65 #include "iec13213.h" 66 #include "iec68113.h" 67 #else 68 #include <dev/firewire/fw_port.h> 69 #include <dev/firewire/firewire.h> 70 #include <dev/firewire/firewirereg.h> 71 #include <dev/firewire/fwmem.h> 72 #include <dev/firewire/iec13213.h> 73 #include <dev/firewire/iec68113.h> 74 #endif 75 #elif defined(__NetBSD__) 76 #include <sys/param.h> 77 #include <sys/device.h> 78 #include <sys/errno.h> 79 #include <sys/conf.h> 80 #include <sys/kernel.h> 81 #include <sys/kthread.h> 82 #include <sys/malloc.h> 83 #include <sys/queue.h> 84 #include <sys/sysctl.h> 85 #include <sys/systm.h> 86 87 #include <sys/bus.h> 88 89 #include <dev/ieee1394/fw_port.h> 90 #include <dev/ieee1394/firewire.h> 91 #include <dev/ieee1394/firewirereg.h> 92 #include <dev/ieee1394/fwmem.h> 93 #include <dev/ieee1394/iec13213.h> 94 #include <dev/ieee1394/iec68113.h> 95 96 #include "locators.h" 97 #endif 98 99 struct crom_src_buf { 100 struct crom_src src; 101 struct crom_chunk root; 102 struct crom_chunk vendor; 103 struct crom_chunk hw; 104 }; 105 106 int firewire_debug=0, try_bmr=1, hold_count=3; 107 #if defined(__FreeBSD__) 108 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 109 "FireWire driver debug flag"); 110 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 111 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 112 "Try to be a bus manager"); 113 SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0, 114 "Number of count of bus resets for removing lost device information"); 115 116 MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 117 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 118 #elif defined(__NetBSD__) 119 /* 120 * Setup sysctl(3) MIB, hw.ieee1394if.* 121 * 122 * TBD condition CTLFLAG_PERMANENT on being an LKM or not 123 */ 124 SYSCTL_SETUP(sysctl_ieee1394if, "sysctl ieee1394if(4) subtree setup") 125 { 126 int rc, ieee1394if_node_num; 127 const struct sysctlnode *node; 128 129 if ((rc = sysctl_createv(clog, 0, NULL, NULL, 130 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 131 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) { 132 goto err; 133 } 134 135 if ((rc = sysctl_createv(clog, 0, NULL, &node, 136 CTLFLAG_PERMANENT, CTLTYPE_NODE, "ieee1394if", 137 SYSCTL_DESCR("ieee1394if controls"), 138 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) { 139 goto err; 140 } 141 ieee1394if_node_num = node->sysctl_num; 142 143 /* ieee1394if try bus manager flag */ 144 if ((rc = sysctl_createv(clog, 0, NULL, &node, 145 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 146 "try_bmr", SYSCTL_DESCR("Try to be a bus manager"), 147 NULL, 0, &try_bmr, 148 0, CTL_HW, ieee1394if_node_num, CTL_CREATE, CTL_EOL)) != 0) { 149 goto err; 150 } 151 152 /* ieee1394if hold count */ 153 if ((rc = sysctl_createv(clog, 0, NULL, &node, 154 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 155 "hold_count", SYSCTL_DESCR("Number of count of " 156 "bus resets for removing lost device information"), 157 NULL, 0, &hold_count, 158 0, CTL_HW, ieee1394if_node_num, CTL_CREATE, CTL_EOL)) != 0) { 159 goto err; 160 } 161 162 /* ieee1394if driver debug flag */ 163 if ((rc = sysctl_createv(clog, 0, NULL, &node, 164 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 165 "ieee1394_debug", SYSCTL_DESCR("ieee1394if driver debug flag"), 166 NULL, 0, &firewire_debug, 167 0, CTL_HW, ieee1394if_node_num, CTL_CREATE, CTL_EOL)) != 0) { 168 goto err; 169 } 170 171 return; 172 173 err: 174 printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 175 } 176 177 MALLOC_DEFINE(M_FW, "ieee1394", "IEEE1394"); 178 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/IEEE1394"); 179 #endif 180 181 #define FW_MAXASYRTY 4 182 183 #if defined(__FreeBSD__) 184 devclass_t firewire_devclass; 185 186 static void firewire_identify (driver_t *, device_t); 187 static int firewire_probe (device_t); 188 static int firewire_attach (device_t); 189 static int firewire_detach (device_t); 190 static int firewire_resume (device_t); 191 #if 0 192 static int firewire_shutdown (device_t); 193 #endif 194 static device_t firewire_add_child (device_t, int, const char *, int); 195 #elif defined(__NetBSD__) 196 int firewirematch (struct device *, struct cfdata *, void *); 197 void firewireattach (struct device *, struct device *, void *); 198 int firewiredetach (struct device *, int); 199 int firewire_print (void *, const char *); 200 int firewire_resume(struct firewire_comm *); 201 #endif 202 static void firewire_xfer_timeout(void *, int); 203 static void fw_try_bmr (void *); 204 static void fw_try_bmr_callback (struct fw_xfer *); 205 static void fw_asystart (struct fw_xfer *); 206 static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *); 207 static void fw_bus_probe (struct firewire_comm *); 208 static void fw_attach_dev (struct firewire_comm *); 209 static void fw_bus_probe_thread(void *); 210 #ifdef FW_VMACCESS 211 static void fw_vmaccess (struct fw_xfer *); 212 #endif 213 static int fw_bmr (struct firewire_comm *); 214 static void fw_dump_hdr(struct fw_pkt *, const char *); 215 216 #if defined(__FreeBSD__) 217 static device_method_t firewire_methods[] = { 218 /* Device interface */ 219 DEVMETHOD(device_identify, firewire_identify), 220 DEVMETHOD(device_probe, firewire_probe), 221 DEVMETHOD(device_attach, firewire_attach), 222 DEVMETHOD(device_detach, firewire_detach), 223 DEVMETHOD(device_suspend, bus_generic_suspend), 224 DEVMETHOD(device_resume, firewire_resume), 225 DEVMETHOD(device_shutdown, bus_generic_shutdown), 226 227 /* Bus interface */ 228 DEVMETHOD(bus_add_child, firewire_add_child), 229 DEVMETHOD(bus_print_child, bus_generic_print_child), 230 231 { 0, 0 } 232 }; 233 #elif defined(__NetBSD__) 234 CFATTACH_DECL(ieee1394if, sizeof (struct firewire_softc), 235 firewirematch, firewireattach, firewiredetach, NULL); 236 #endif 237 const char *fw_linkspeed[] = { 238 "S100", "S200", "S400", "S800", 239 "S1600", "S3200", "undef", "undef" 240 }; 241 242 static const char *tcode_str[] = { 243 "WREQQ", "WREQB", "WRES", "undef", 244 "RREQQ", "RREQB", "RRESQ", "RRESB", 245 "CYCS", "LREQ", "STREAM", "LRES", 246 "undef", "undef", "PHY", "undef" 247 }; 248 249 /* IEEE-1394a Table C-2 Gap count as a function of hops*/ 250 #define MAX_GAPHOP 15 251 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 252 21, 24, 26, 29, 32, 35, 37, 40}; 253 254 #if defined(__FreeBSD__) 255 static driver_t firewire_driver = { 256 "firewire", 257 firewire_methods, 258 sizeof(struct firewire_softc), 259 }; 260 #endif 261 262 /* 263 * Lookup fwdev by node id. 264 */ 265 struct fw_device * 266 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 267 { 268 struct fw_device *fwdev; 269 int s; 270 271 s = splfw(); 272 FW_GLOCK(fc); 273 STAILQ_FOREACH(fwdev, &fc->devices, link) 274 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 275 break; 276 FW_GUNLOCK(fc); 277 splx(s); 278 279 return fwdev; 280 } 281 282 /* 283 * Lookup fwdev by EUI64. 284 */ 285 struct fw_device * 286 fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 287 { 288 struct fw_device *fwdev; 289 int s; 290 291 s = splfw(); 292 STAILQ_FOREACH(fwdev, &fc->devices, link) 293 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 294 break; 295 splx(s); 296 297 if(fwdev == NULL) return NULL; 298 if(fwdev->status == FWDEVINVAL) return NULL; 299 return fwdev; 300 } 301 302 /* 303 * Async. request procedure for userland application. 304 */ 305 int 306 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 307 { 308 int err = 0; 309 struct fw_xferq *xferq; 310 int len; 311 struct fw_pkt *fp; 312 int tcode; 313 const struct tcode_info *info; 314 315 if(xfer == NULL) return EINVAL; 316 if(xfer->hand == NULL){ 317 printf("hand == NULL\n"); 318 return EINVAL; 319 } 320 fp = &xfer->send.hdr; 321 322 tcode = fp->mode.common.tcode & 0xf; 323 info = &fc->tcode[tcode]; 324 if (info->flag == 0) { 325 printf("invalid tcode=%x\n", tcode); 326 return EINVAL; 327 } 328 329 /* XXX allow bus explore packets only after bus rest */ 330 if ((fc->status < FWBUSEXPLORE) && 331 ((tcode != FWTCODE_RREQQ) || (fp->mode.rreqq.dest_hi != 0xffff) || 332 (fp->mode.rreqq.dest_lo < 0xf0000000) || 333 (fp->mode.rreqq.dest_lo >= 0xf0001000))) { 334 xfer->resp = EAGAIN; 335 xfer->flag = FWXF_BUSY; 336 return (EAGAIN); 337 } 338 339 if (info->flag & FWTI_REQ) 340 xferq = fc->atq; 341 else 342 xferq = fc->ats; 343 len = info->hdr_len; 344 if (xfer->send.pay_len > MAXREC(fc->maxrec)) { 345 printf("send.pay_len > maxrec\n"); 346 return EINVAL; 347 } 348 if (info->flag & FWTI_BLOCK_STR) 349 len = fp->mode.stream.len; 350 else if (info->flag & FWTI_BLOCK_ASY) 351 len = fp->mode.rresb.len; 352 else 353 len = 0; 354 if (len != xfer->send.pay_len){ 355 printf("len(%d) != send.pay_len(%d) %s(%x)\n", 356 len, xfer->send.pay_len, tcode_str[tcode], tcode); 357 return EINVAL; 358 } 359 360 if(xferq->start == NULL){ 361 printf("xferq->start == NULL\n"); 362 return EINVAL; 363 } 364 if(!(xferq->queued < xferq->maxq)){ 365 fw_printf(fc->bdev, "Discard a packet (queued=%d)\n", 366 xferq->queued); 367 return EAGAIN; 368 } 369 370 xfer->tl = -1; 371 if (info->flag & FWTI_TLABEL) { 372 if (fw_get_tlabel(fc, xfer) < 0) 373 return EAGAIN; 374 } 375 376 xfer->resp = 0; 377 xfer->fc = fc; 378 xfer->q = xferq; 379 380 fw_asystart(xfer); 381 return err; 382 } 383 /* 384 * Wakeup blocked process. 385 */ 386 void 387 fw_xferwake(struct fw_xfer *xfer) 388 { 389 fw_mtx_t lock = &xfer->fc->wait_lock; 390 391 fw_mtx_lock(lock); 392 xfer->flag |= FWXF_WAKE; 393 fw_mtx_unlock(lock); 394 395 wakeup(xfer); 396 return; 397 } 398 399 int 400 fw_xferwait(struct fw_xfer *xfer) 401 { 402 fw_mtx_t lock = &xfer->fc->wait_lock; 403 int err = 0; 404 405 fw_mtx_lock(lock); 406 if ((xfer->flag & FWXF_WAKE) == 0) 407 err = fw_msleep((void *)xfer, lock, PWAIT|PCATCH, "fw_xferwait", 0); 408 fw_mtx_unlock(lock); 409 410 return (err); 411 } 412 413 /* 414 * Async. request with given xfer structure. 415 */ 416 static void 417 fw_asystart(struct fw_xfer *xfer) 418 { 419 struct firewire_comm *fc = xfer->fc; 420 int s; 421 s = splfw(); 422 /* Protect from interrupt/timeout */ 423 FW_GLOCK(fc); 424 xfer->flag = FWXF_INQ; 425 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 426 #if 0 427 xfer->q->queued ++; 428 #endif 429 FW_GUNLOCK(fc); 430 splx(s); 431 /* XXX just queue for mbuf */ 432 if (xfer->mbuf == NULL) 433 xfer->q->start(fc); 434 return; 435 } 436 437 #if defined(__FreeBSD__) 438 static void 439 firewire_identify(driver_t *driver, device_t parent) 440 { 441 BUS_ADD_CHILD(parent, 0, "firewire", -1); 442 } 443 444 static int 445 firewire_probe(device_t dev) 446 { 447 device_set_desc(dev, "IEEE1394(FireWire) bus"); 448 return (0); 449 } 450 #elif defined(__NetBSD__) 451 int 452 firewirematch(struct device *parent, struct cfdata *cf, 453 void *aux) 454 { 455 struct fwbus_attach_args *faa = (struct fwbus_attach_args *)aux; 456 457 if (strcmp(faa->name, "ieee1394if") == 0) 458 return (1); 459 return (0); 460 } 461 #endif 462 463 static void 464 firewire_xfer_timeout(void *arg, int pending) 465 { 466 struct firewire_comm *fc = (struct firewire_comm *)arg; 467 struct fw_xfer *xfer, *txfer; 468 struct timeval tv; 469 struct timeval split_timeout; 470 STAILQ_HEAD(, fw_xfer) xfer_timeout; 471 int i, s; 472 473 split_timeout.tv_sec = 0; 474 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 475 476 microtime(&tv); 477 fw_timevalsub(&tv, &split_timeout); 478 STAILQ_INIT(&xfer_timeout); 479 480 s = splfw(); 481 fw_mtx_lock(&fc->tlabel_lock); 482 for (i = 0; i < 0x40; i ++) { 483 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 484 if ((xfer->flag & FWXF_SENT) == 0) 485 /* not sent yet */ 486 break; 487 if (fw_timevalcmp(&xfer->tv, &tv, >)) 488 /* the rests are newer than this */ 489 break; 490 fw_printf(fc->bdev, 491 "split transaction timeout: " 492 "tl=0x%x flag=0x%02x\n", i, xfer->flag); 493 fw_dump_hdr(&xfer->send.hdr, "send"); 494 xfer->resp = ETIMEDOUT; 495 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel); 496 STAILQ_INSERT_TAIL(&xfer_timeout, xfer, tlabel); 497 } 498 } 499 fw_mtx_unlock(&fc->tlabel_lock); 500 splx(s); 501 fc->timeout(fc); 502 503 STAILQ_FOREACH_SAFE(xfer, &xfer_timeout, tlabel, txfer) 504 xfer->hand(xfer); 505 } 506 507 #define WATCHDOG_HZ 10 508 static void 509 firewire_watchdog(void *arg) 510 { 511 struct firewire_comm *fc; 512 static int watchdog_clock = 0; 513 514 fc = (struct firewire_comm *)arg; 515 516 /* 517 * At boot stage, the device interrupt is disabled and 518 * We encounter a timeout easily. To avoid this, 519 * ignore clock interrupt for a while. 520 */ 521 if (watchdog_clock > WATCHDOG_HZ * 15) 522 fw_taskqueue_enqueue(fc->taskqueue, &fc->task_timeout); 523 else 524 watchdog_clock ++; 525 526 fw_callout_reset(&fc->timeout_callout, hz / WATCHDOG_HZ, 527 (void *)firewire_watchdog, (void *)fc); 528 } 529 530 /* 531 * The attach routine. 532 */ 533 FW_ATTACH(firewire) 534 { 535 FW_ATTACH_START(firewire, sc, fwa); 536 FIREWIRE_ATTACH_START; 537 538 sc->fc = fc; 539 fc->status = FWBUSNOTREADY; 540 541 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 542 543 FWDEV_MAKEDEV(sc); 544 545 fw_mtx_init(&fc->wait_lock, "fwwait", NULL, MTX_DEF); 546 fw_mtx_init(&fc->tlabel_lock, "fwtlabel", NULL, MTX_DEF); 547 fw_callout_init(&fc->timeout_callout); 548 fw_callout_init(&fc->bmr_callout); 549 fw_callout_init(&fc->busprobe_callout); 550 FW_TASK_INIT(&fc->task_timeout, 0, firewire_xfer_timeout, (void *)fc); 551 552 fw_callout_reset(&sc->fc->timeout_callout, hz, 553 (void *)firewire_watchdog, (void *)sc->fc); 554 555 /* create thread */ 556 fw_kthread_create(fw_bus_probe_thread, (void *)fc, &fc->probe_thread, 557 "fw%d_probe", fw_get_unit(fc->bdev)); 558 fw_config_pending_incr(); 559 560 FIREWIRE_GENERIC_ATTACH; 561 562 /* bus_reset */ 563 fw_busreset(fc, FWBUSNOTREADY); 564 fc->ibr(fc); 565 566 #ifdef __NetBSD__ 567 if (!pmf_device_register(self, NULL, NULL)) 568 aprint_error_dev(self, "couldn't establish power handler\n"); 569 #endif 570 571 FW_ATTACH_RETURN(0); 572 } 573 574 #if defined(__FreeBSD__) 575 /* 576 * Attach it as child. 577 */ 578 static device_t 579 firewire_add_child(device_t dev, int order, const char *name, int unit) 580 { 581 device_t child; 582 struct firewire_softc *sc; 583 struct fw_attach_args fwa; 584 585 sc = (struct firewire_softc *)device_get_softc(dev); 586 child = device_add_child(dev, name, unit); 587 if (child) { 588 fwa.name = name; 589 fwa.fc = sc->fc; 590 fwa.fwdev = NULL; 591 device_set_ivars(child, &fwa); 592 device_probe_and_attach(child); 593 } 594 595 return child; 596 } 597 598 static int 599 firewire_resume(device_t dev) 600 { 601 struct firewire_softc *sc; 602 603 sc = (struct firewire_softc *)device_get_softc(dev); 604 sc->fc->status = FWBUSNOTREADY; 605 606 bus_generic_resume(dev); 607 608 return(0); 609 } 610 #endif 611 612 /* 613 * Dettach it. 614 */ 615 FW_DETACH(firewire) 616 { 617 FW_DETACH_START(firewire, sc); 618 struct firewire_comm *fc; 619 struct fw_device *fwdev, *fwdev_next; 620 621 fc = sc->fc; 622 fw_mtx_lock(&fc->wait_lock); 623 fc->status = FWBUSDETACH; 624 wakeup(fc); 625 if (fw_msleep(fc->probe_thread, 626 &fc->wait_lock, PWAIT, "fwthr", hz * 60)) 627 printf("firewire probe thread didn't die\n"); 628 fw_mtx_unlock(&fc->wait_lock); 629 630 FWDEV_DESTROYDEV(sc); 631 FIREWIRE_GENERIC_DETACH; 632 633 fw_callout_stop(&fc->timeout_callout); 634 fw_callout_stop(&fc->bmr_callout); 635 fw_callout_stop(&fc->busprobe_callout); 636 637 /* XXX xfree_free and untimeout on all xfers */ 638 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; 639 fwdev = fwdev_next) { 640 fwdev_next = STAILQ_NEXT(fwdev, link); 641 free(fwdev, M_FW); 642 } 643 free(fc->topology_map, M_FW); 644 free(fc->speed_map, M_FW); 645 free(fc->crom_src_buf, M_FW); 646 647 fw_mtx_destroy(&fc->wait_lock); 648 fw_mtx_destroy(&fc->tlabel_lock); 649 return(0); 650 } 651 #if defined(__FreeBSD__) 652 #if 0 653 static int 654 firewire_shutdown( device_t dev ) 655 { 656 return 0; 657 } 658 #endif 659 #elif defined(__NetBSD__) 660 int 661 firewire_print(void *aux, const char *pnp) 662 { 663 struct fw_attach_args *fwa = (struct fw_attach_args *)aux; 664 665 if (pnp) 666 aprint_normal("%s at %s", fwa->name, pnp); 667 668 return UNCONF; 669 } 670 671 int 672 firewire_resume(struct firewire_comm *fc) 673 { 674 675 fc->status = FWBUSNOTREADY; 676 return 0; 677 } 678 #endif 679 680 static void 681 fw_xferq_drain(struct fw_xferq *xferq) 682 { 683 struct fw_xfer *xfer; 684 685 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 686 STAILQ_REMOVE_HEAD(&xferq->q, link); 687 #if 0 688 xferq->queued --; 689 #endif 690 xfer->resp = EAGAIN; 691 xfer->flag = FWXF_SENTERR; 692 fw_xfer_done(xfer); 693 } 694 } 695 696 void 697 fw_drain_txq(struct firewire_comm *fc) 698 { 699 struct fw_xfer *xfer, *txfer; 700 STAILQ_HEAD(, fw_xfer) xfer_drain; 701 int i; 702 703 STAILQ_INIT(&xfer_drain); 704 705 FW_GLOCK(fc); 706 fw_xferq_drain(fc->atq); 707 fw_xferq_drain(fc->ats); 708 for(i = 0; i < fc->nisodma; i++) 709 fw_xferq_drain(fc->it[i]); 710 FW_GUNLOCK(fc); 711 712 fw_mtx_lock(&fc->tlabel_lock); 713 for (i = 0; i < 0x40; i ++) 714 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 715 if (firewire_debug) 716 printf("tl=%d flag=%d\n", i, xfer->flag); 717 xfer->resp = EAGAIN; 718 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel); 719 STAILQ_INSERT_TAIL(&xfer_drain, xfer, tlabel); 720 } 721 fw_mtx_unlock(&fc->tlabel_lock); 722 723 STAILQ_FOREACH_SAFE(xfer, &xfer_drain, tlabel, txfer) 724 xfer->hand(xfer); 725 } 726 727 static void 728 fw_reset_csr(struct firewire_comm *fc) 729 { 730 int i; 731 732 CSRARC(fc, STATE_CLEAR) 733 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 734 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 735 CSRARC(fc, NODE_IDS) = 0x3f; 736 737 CSRARC(fc, TOPO_MAP + 8) = 0; 738 fc->irm = -1; 739 740 fc->max_node = -1; 741 742 for(i = 2; i < 0x100/4 - 2 ; i++){ 743 CSRARC(fc, SPED_MAP + i * 4) = 0; 744 } 745 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 746 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 747 CSRARC(fc, RESET_START) = 0; 748 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 749 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 750 CSRARC(fc, CYCLE_TIME) = 0x0; 751 CSRARC(fc, BUS_TIME) = 0x0; 752 CSRARC(fc, BUS_MGR_ID) = 0x3f; 753 CSRARC(fc, BANDWIDTH_AV) = 4915; 754 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 755 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 756 CSRARC(fc, IP_CHANNELS) = (1 << 31); 757 758 CSRARC(fc, CONF_ROM) = 0x04 << 24; 759 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 760 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 761 1 << 28 | 0xff << 16 | 0x09 << 8; 762 CSRARC(fc, CONF_ROM + 0xc) = 0; 763 764 /* DV depend CSRs see blue book */ 765 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 766 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 767 768 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 769 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 770 } 771 772 static void 773 fw_init_crom(struct firewire_comm *fc) 774 { 775 struct crom_src *src; 776 777 fc->crom_src_buf = (struct crom_src_buf *) 778 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 779 if (fc->crom_src_buf == NULL) 780 return; 781 782 src = &fc->crom_src_buf->src; 783 bzero(src, sizeof(struct crom_src)); 784 785 /* BUS info sample */ 786 src->hdr.info_len = 4; 787 788 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 789 790 src->businfo.irmc = 1; 791 src->businfo.cmc = 1; 792 src->businfo.isc = 1; 793 src->businfo.bmc = 1; 794 src->businfo.pmc = 0; 795 src->businfo.cyc_clk_acc = 100; 796 src->businfo.max_rec = fc->maxrec; 797 src->businfo.max_rom = MAXROM_4; 798 src->businfo.generation = 1; 799 src->businfo.link_spd = fc->speed; 800 801 src->businfo.eui64.hi = fc->eui.hi; 802 src->businfo.eui64.lo = fc->eui.lo; 803 804 STAILQ_INIT(&src->chunk_list); 805 806 fc->crom_src = src; 807 fc->crom_root = &fc->crom_src_buf->root; 808 } 809 810 static void 811 fw_reset_crom(struct firewire_comm *fc) 812 { 813 struct crom_src_buf *buf; 814 struct crom_src *src; 815 struct crom_chunk *root; 816 817 if (fc->crom_src_buf == NULL) 818 fw_init_crom(fc); 819 820 buf = fc->crom_src_buf; 821 src = fc->crom_src; 822 root = fc->crom_root; 823 824 STAILQ_INIT(&src->chunk_list); 825 826 bzero(root, sizeof(struct crom_chunk)); 827 crom_add_chunk(src, NULL, root, 0); 828 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 829 /* private company_id */ 830 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 831 crom_add_simple_text(src, root, &buf->vendor, PROJECT_STR); 832 crom_add_entry(root, CSRKEY_HW, OS_VER); 833 crom_add_simple_text(src, root, &buf->hw, hostname); 834 } 835 836 /* 837 * Called after bus reset. 838 */ 839 void 840 fw_busreset(struct firewire_comm *fc, uint32_t new_status) 841 { 842 struct firewire_dev_comm *fdc; 843 struct crom_src *src; 844 void *newrom; 845 846 switch(fc->status){ 847 case FWBUSMGRELECT: 848 fw_callout_stop(&fc->bmr_callout); 849 break; 850 default: 851 break; 852 } 853 fc->status = new_status; 854 fw_reset_csr(fc); 855 fw_reset_crom(fc); 856 857 FIREWIRE_CHILDREN_FOREACH_FUNC(post_busreset, fdc); 858 859 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 860 src = &fc->crom_src_buf->src; 861 crom_load(src, (uint32_t *)newrom, CROMSIZE); 862 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 863 /* bump generation and reload */ 864 src->businfo.generation ++; 865 /* generation must be between 0x2 and 0xF */ 866 if (src->businfo.generation < 2) 867 src->businfo.generation ++; 868 crom_load(src, (uint32_t *)newrom, CROMSIZE); 869 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 870 } 871 free(newrom, M_FW); 872 } 873 874 /* Call once after reboot */ 875 void fw_init(struct firewire_comm *fc) 876 { 877 int i; 878 #ifdef FW_VMACCESS 879 struct fw_xfer *xfer; 880 struct fw_bind *fwb; 881 #endif 882 883 fc->arq->queued = 0; 884 fc->ars->queued = 0; 885 fc->atq->queued = 0; 886 fc->ats->queued = 0; 887 888 fc->arq->buf = NULL; 889 fc->ars->buf = NULL; 890 fc->atq->buf = NULL; 891 fc->ats->buf = NULL; 892 893 fc->arq->flag = 0; 894 fc->ars->flag = 0; 895 fc->atq->flag = 0; 896 fc->ats->flag = 0; 897 898 STAILQ_INIT(&fc->atq->q); 899 STAILQ_INIT(&fc->ats->q); 900 901 for( i = 0 ; i < fc->nisodma ; i ++ ){ 902 fc->it[i]->queued = 0; 903 fc->ir[i]->queued = 0; 904 905 fc->it[i]->start = NULL; 906 fc->ir[i]->start = NULL; 907 908 fc->it[i]->buf = NULL; 909 fc->ir[i]->buf = NULL; 910 911 fc->it[i]->flag = FWXFERQ_STREAM; 912 fc->ir[i]->flag = FWXFERQ_STREAM; 913 914 STAILQ_INIT(&fc->it[i]->q); 915 STAILQ_INIT(&fc->ir[i]->q); 916 } 917 918 fc->arq->maxq = FWMAXQUEUE; 919 fc->ars->maxq = FWMAXQUEUE; 920 fc->atq->maxq = FWMAXQUEUE; 921 fc->ats->maxq = FWMAXQUEUE; 922 923 for( i = 0 ; i < fc->nisodma ; i++){ 924 fc->ir[i]->maxq = FWMAXQUEUE; 925 fc->it[i]->maxq = FWMAXQUEUE; 926 } 927 /* Initialize csr registers */ 928 fc->topology_map = (struct fw_topology_map *)malloc( 929 sizeof(struct fw_topology_map), 930 M_FW, M_NOWAIT | M_ZERO); 931 fc->speed_map = (struct fw_speed_map *)malloc( 932 sizeof(struct fw_speed_map), 933 M_FW, M_NOWAIT | M_ZERO); 934 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 935 CSRARC(fc, TOPO_MAP + 4) = 1; 936 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 937 CSRARC(fc, SPED_MAP + 4) = 1; 938 939 STAILQ_INIT(&fc->devices); 940 941 /* Initialize Async handlers */ 942 STAILQ_INIT(&fc->binds); 943 for( i = 0 ; i < 0x40 ; i++){ 944 STAILQ_INIT(&fc->tlabels[i]); 945 } 946 947 /* DV depend CSRs see blue book */ 948 #if 0 949 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 950 CSRARC(fc, oPCR) = 0x8000007a; 951 for(i = 4 ; i < 0x7c/4 ; i+=4){ 952 CSRARC(fc, i + oPCR) = 0x8000007a; 953 } 954 955 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 956 CSRARC(fc, iPCR) = 0x803f0000; 957 for(i = 4 ; i < 0x7c/4 ; i+=4){ 958 CSRARC(fc, i + iPCR) = 0x0; 959 } 960 #endif 961 962 fc->crom_src_buf = NULL; 963 964 #ifdef FW_VMACCESS 965 xfer = fw_xfer_alloc(); 966 if(xfer == NULL) return; 967 968 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 969 if(fwb == NULL){ 970 fw_xfer_free(xfer); 971 return; 972 } 973 xfer->hand = fw_vmaccess; 974 xfer->fc = fc; 975 xfer->sc = NULL; 976 977 fwb->start_hi = 0x2; 978 fwb->start_lo = 0; 979 fwb->addrlen = 0xffffffff; 980 fwb->xfer = xfer; 981 fw_bindadd(fc, fwb); 982 #endif 983 } 984 985 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 986 ((fwb)->end < (addr))?1:0) 987 988 /* 989 * To lookup bound process from IEEE1394 address. 990 */ 991 struct fw_bind * 992 fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 993 { 994 u_int64_t addr; 995 struct fw_bind *tfw, *r = NULL; 996 997 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 998 FW_GLOCK(fc); 999 STAILQ_FOREACH(tfw, &fc->binds, fclist) 1000 if (BIND_CMP(addr, tfw) == 0) { 1001 r = tfw; 1002 break; 1003 } 1004 FW_GUNLOCK(fc); 1005 return(r); 1006 } 1007 1008 /* 1009 * To bind IEEE1394 address block to process. 1010 */ 1011 int 1012 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 1013 { 1014 struct fw_bind *tfw, *prev = NULL; 1015 int r = 0; 1016 1017 if (fwb->start > fwb->end) { 1018 printf("%s: invalid range\n", __func__); 1019 return EINVAL; 1020 } 1021 1022 FW_GLOCK(fc); 1023 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 1024 if (fwb->end < tfw->start) 1025 break; 1026 prev = tfw; 1027 } 1028 if (prev == NULL) 1029 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 1030 else if (prev->end < fwb->start) 1031 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 1032 else { 1033 printf("%s: bind failed\n", __func__); 1034 r = EBUSY; 1035 } 1036 FW_GUNLOCK(fc); 1037 return (r); 1038 } 1039 1040 /* 1041 * To free IEEE1394 address block. 1042 */ 1043 int 1044 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 1045 { 1046 #if 0 1047 struct fw_xfer *xfer, *next; 1048 #endif 1049 struct fw_bind *tfw; 1050 int s; 1051 1052 s = splfw(); 1053 FW_GLOCK(fc); 1054 STAILQ_FOREACH(tfw, &fc->binds, fclist) 1055 if (tfw == fwb) { 1056 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 1057 goto found; 1058 } 1059 1060 printf("%s: no such binding\n", __func__); 1061 FW_GUNLOCK(fc); 1062 splx(s); 1063 return (1); 1064 found: 1065 #if 0 1066 /* shall we do this? */ 1067 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 1068 next = STAILQ_NEXT(xfer, link); 1069 fw_xfer_free(xfer); 1070 } 1071 STAILQ_INIT(&fwb->xferlist); 1072 #endif 1073 FW_GUNLOCK(fc); 1074 1075 splx(s); 1076 return 0; 1077 } 1078 1079 int 1080 fw_xferlist_add(struct fw_xferlist *q, struct malloc_type *type, 1081 int slen, int rlen, int n, 1082 struct firewire_comm *fc, void *sc, void (*hand)(struct fw_xfer *)) 1083 { 1084 int i, s; 1085 struct fw_xfer *xfer; 1086 1087 for (i = 0; i < n; i++) { 1088 xfer = fw_xfer_alloc_buf(type, slen, rlen); 1089 if (xfer == NULL) 1090 return (n); 1091 xfer->fc = fc; 1092 xfer->sc = sc; 1093 xfer->hand = hand; 1094 s = splfw(); 1095 STAILQ_INSERT_TAIL(q, xfer, link); 1096 splx(s); 1097 } 1098 return (n); 1099 } 1100 1101 void 1102 fw_xferlist_remove(struct fw_xferlist *q) 1103 { 1104 struct fw_xfer *xfer, *next; 1105 1106 for (xfer = STAILQ_FIRST(q); xfer != NULL; xfer = next) { 1107 next = STAILQ_NEXT(xfer, link); 1108 fw_xfer_free_buf(xfer); 1109 } 1110 STAILQ_INIT(q); 1111 } 1112 1113 /* 1114 * dump packet header 1115 */ 1116 static void 1117 fw_dump_hdr(struct fw_pkt *fp, const char *prefix) 1118 { 1119 printf("%s: dst=0x%02x tl=0x%02x rt=%d tcode=0x%x pri=0x%x " 1120 "src=0x%03x\n", prefix, 1121 fp->mode.hdr.dst & 0x3f, 1122 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tlrt & 3, 1123 fp->mode.hdr.tcode, fp->mode.hdr.pri, 1124 fp->mode.hdr.src); 1125 } 1126 1127 /* 1128 * To free transaction label. 1129 */ 1130 static void 1131 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 1132 { 1133 struct fw_xfer *txfer; 1134 int s; 1135 1136 if (xfer->tl < 0) 1137 return; 1138 1139 s = splfw(); 1140 fw_mtx_lock(&fc->tlabel_lock); 1141 #if 1 /* make sure the label is allocated */ 1142 STAILQ_FOREACH(txfer, &fc->tlabels[xfer->tl], tlabel) 1143 if(txfer == xfer) 1144 break; 1145 if (txfer == NULL) { 1146 printf("%s: the xfer is not in the queue " 1147 "(tlabel=%d, flag=0x%x)\n", 1148 __FUNCTION__, xfer->tl, xfer->flag); 1149 fw_dump_hdr(&xfer->send.hdr, "send"); 1150 fw_dump_hdr(&xfer->recv.hdr, "recv"); 1151 kdb_backtrace(); 1152 fw_mtx_unlock(&fc->tlabel_lock); 1153 splx(s); 1154 return; 1155 } 1156 #endif 1157 1158 STAILQ_REMOVE(&fc->tlabels[xfer->tl], xfer, fw_xfer, tlabel); 1159 fw_mtx_unlock(&fc->tlabel_lock); 1160 splx(s); 1161 return; 1162 } 1163 1164 /* 1165 * To obtain XFER structure by transaction label. 1166 */ 1167 static struct fw_xfer * 1168 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel, int tcode) 1169 { 1170 struct fw_xfer *xfer; 1171 int s = splfw(); 1172 int req; 1173 1174 fw_mtx_lock(&fc->tlabel_lock); 1175 STAILQ_FOREACH(xfer, &fc->tlabels[tlabel], tlabel) 1176 if(xfer->send.hdr.mode.hdr.dst == node) { 1177 fw_mtx_unlock(&fc->tlabel_lock); 1178 splx(s); 1179 FW_KASSERT(xfer->tl == tlabel, 1180 ("xfer->tl 0x%x != 0x%x", xfer->tl, tlabel)); 1181 /* extra sanity check */ 1182 req = xfer->send.hdr.mode.hdr.tcode; 1183 if (xfer->fc->tcode[req].valid_res != tcode) { 1184 printf("%s: invalid response tcode " 1185 "(0x%x for 0x%x)\n", __FUNCTION__, 1186 tcode, req); 1187 return(NULL); 1188 } 1189 1190 if (firewire_debug > 2) 1191 printf("fw_tl2xfer: found tl=%d\n", tlabel); 1192 return(xfer); 1193 } 1194 fw_mtx_unlock(&fc->tlabel_lock); 1195 if (firewire_debug > 1) 1196 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 1197 splx(s); 1198 return(NULL); 1199 } 1200 1201 /* 1202 * To allocate IEEE1394 XFER structure. 1203 */ 1204 struct fw_xfer * 1205 fw_xfer_alloc(struct malloc_type *type) 1206 { 1207 struct fw_xfer *xfer; 1208 1209 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 1210 if (xfer == NULL) 1211 return xfer; 1212 1213 xfer->malloc = type; 1214 1215 return xfer; 1216 } 1217 1218 struct fw_xfer * 1219 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 1220 { 1221 struct fw_xfer *xfer; 1222 1223 xfer = fw_xfer_alloc(type); 1224 if (xfer == NULL) 1225 return(NULL); 1226 xfer->send.pay_len = send_len; 1227 xfer->recv.pay_len = recv_len; 1228 if (send_len > 0) { 1229 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 1230 if (xfer->send.payload == NULL) { 1231 fw_xfer_free(xfer); 1232 return(NULL); 1233 } 1234 } 1235 if (recv_len > 0) { 1236 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 1237 if (xfer->recv.payload == NULL) { 1238 if (xfer->send.payload != NULL) 1239 free(xfer->send.payload, type); 1240 fw_xfer_free(xfer); 1241 return(NULL); 1242 } 1243 } 1244 return(xfer); 1245 } 1246 1247 /* 1248 * IEEE1394 XFER post process. 1249 */ 1250 void 1251 fw_xfer_done(struct fw_xfer *xfer) 1252 { 1253 if (xfer->hand == NULL) { 1254 printf("hand == NULL\n"); 1255 return; 1256 } 1257 1258 if (xfer->fc == NULL) 1259 panic("fw_xfer_done: why xfer->fc is NULL?"); 1260 1261 fw_tl_free(xfer->fc, xfer); 1262 xfer->hand(xfer); 1263 } 1264 1265 void 1266 fw_xfer_unload(struct fw_xfer* xfer) 1267 { 1268 int s; 1269 1270 if(xfer == NULL ) return; 1271 if(xfer->flag & FWXF_INQ){ 1272 printf("fw_xfer_free FWXF_INQ\n"); 1273 s = splfw(); 1274 FW_GLOCK(xfer->fc); 1275 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1276 #if 0 1277 xfer->q->queued --; 1278 #endif 1279 FW_GUNLOCK(xfer->fc); 1280 splx(s); 1281 } 1282 if (xfer->fc != NULL) { 1283 #if 1 1284 if(xfer->flag == FWXF_START) 1285 /* 1286 * This could happen if: 1287 * 1. We call fwohci_arcv() before fwohci_txd(). 1288 * 2. firewire_watch() is called. 1289 */ 1290 printf("fw_xfer_free FWXF_START\n"); 1291 #endif 1292 } 1293 xfer->flag = FWXF_INIT; 1294 xfer->resp = 0; 1295 } 1296 /* 1297 * To free IEEE1394 XFER structure. 1298 */ 1299 void 1300 fw_xfer_free_buf( struct fw_xfer* xfer) 1301 { 1302 if (xfer == NULL) { 1303 printf("%s: xfer == NULL\n", __func__); 1304 return; 1305 } 1306 fw_xfer_unload(xfer); 1307 if(xfer->send.payload != NULL){ 1308 free(xfer->send.payload, xfer->malloc); 1309 } 1310 if(xfer->recv.payload != NULL){ 1311 free(xfer->recv.payload, xfer->malloc); 1312 } 1313 free(xfer, xfer->malloc); 1314 } 1315 1316 void 1317 fw_xfer_free( struct fw_xfer* xfer) 1318 { 1319 if (xfer == NULL) { 1320 printf("%s: xfer == NULL\n", __func__); 1321 return; 1322 } 1323 fw_xfer_unload(xfer); 1324 free(xfer, xfer->malloc); 1325 } 1326 1327 void 1328 fw_asy_callback_free(struct fw_xfer *xfer) 1329 { 1330 #if 0 1331 printf("asyreq done flag=%d resp=%d\n", 1332 xfer->flag, xfer->resp); 1333 #endif 1334 fw_xfer_free(xfer); 1335 } 1336 1337 /* 1338 * To configure PHY. 1339 */ 1340 static void 1341 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1342 { 1343 struct fw_xfer *xfer; 1344 struct fw_pkt *fp; 1345 1346 fc->status = FWBUSPHYCONF; 1347 1348 xfer = fw_xfer_alloc(M_FWXFER); 1349 if (xfer == NULL) 1350 return; 1351 xfer->fc = fc; 1352 xfer->hand = fw_asy_callback_free; 1353 1354 fp = &xfer->send.hdr; 1355 fp->mode.ld[1] = 0; 1356 if (root_node >= 0) 1357 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1358 if (gap_count >= 0) 1359 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1360 fp->mode.ld[2] = ~fp->mode.ld[1]; 1361 /* XXX Dangerous, how to pass PHY packet to device driver */ 1362 fp->mode.common.tcode |= FWTCODE_PHY; 1363 1364 if (firewire_debug) 1365 printf("send phy_config root_node=%d gap_count=%d\n", 1366 root_node, gap_count); 1367 fw_asyreq(fc, -1, xfer); 1368 } 1369 1370 #if 0 1371 /* 1372 * Dump self ID. 1373 */ 1374 static void 1375 fw_print_sid(uint32_t sid) 1376 { 1377 union fw_self_id *s; 1378 s = (union fw_self_id *) &sid; 1379 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1380 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1381 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1382 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1383 s->p0.power_class, s->p0.port0, s->p0.port1, 1384 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1385 } 1386 #endif 1387 1388 /* 1389 * To receive self ID. 1390 */ 1391 void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1392 { 1393 uint32_t *p; 1394 union fw_self_id *self_id; 1395 u_int i, j, node, c_port = 0, i_branch = 0; 1396 1397 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1398 fc->max_node = fc->nodeid & 0x3f; 1399 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1400 fc->status = FWBUSCYMELECT; 1401 fc->topology_map->crc_len = 2; 1402 fc->topology_map->generation ++; 1403 fc->topology_map->self_id_count = 0; 1404 fc->topology_map->node_count = 0; 1405 fc->speed_map->generation ++; 1406 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1407 self_id = &fc->topology_map->self_id[0]; 1408 for(i = 0; i < fc->sid_cnt; i ++){ 1409 if (sid[1] != ~sid[0]) { 1410 printf("fw_sidrcv: invalid self-id packet\n"); 1411 sid += 2; 1412 continue; 1413 } 1414 *self_id = *((union fw_self_id *)sid); 1415 fc->topology_map->crc_len++; 1416 if(self_id->p0.sequel == 0){ 1417 fc->topology_map->node_count ++; 1418 c_port = 0; 1419 #if 0 1420 fw_print_sid(sid[0]); 1421 #endif 1422 node = self_id->p0.phy_id; 1423 if(fc->max_node < node){ 1424 fc->max_node = self_id->p0.phy_id; 1425 } 1426 /* XXX I'm not sure this is the right speed_map */ 1427 fc->speed_map->speed[node][node] 1428 = self_id->p0.phy_speed; 1429 for (j = 0; j < node; j ++) { 1430 fc->speed_map->speed[j][node] 1431 = fc->speed_map->speed[node][j] 1432 = min(fc->speed_map->speed[j][j], 1433 self_id->p0.phy_speed); 1434 } 1435 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1436 (self_id->p0.link_active && self_id->p0.contender)) { 1437 fc->irm = self_id->p0.phy_id; 1438 } 1439 if(self_id->p0.port0 >= 0x2){ 1440 c_port++; 1441 } 1442 if(self_id->p0.port1 >= 0x2){ 1443 c_port++; 1444 } 1445 if(self_id->p0.port2 >= 0x2){ 1446 c_port++; 1447 } 1448 } 1449 if(c_port > 2){ 1450 i_branch += (c_port - 2); 1451 } 1452 sid += 2; 1453 self_id++; 1454 fc->topology_map->self_id_count ++; 1455 } 1456 fw_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1457 /* CRC */ 1458 fc->topology_map->crc = fw_crc16( 1459 (uint32_t *)&fc->topology_map->generation, 1460 fc->topology_map->crc_len * 4); 1461 fc->speed_map->crc = fw_crc16( 1462 (uint32_t *)&fc->speed_map->generation, 1463 fc->speed_map->crc_len * 4); 1464 /* byteswap and copy to CSR */ 1465 p = (uint32_t *)fc->topology_map; 1466 for (i = 0; i <= fc->topology_map->crc_len; i++) 1467 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1468 p = (uint32_t *)fc->speed_map; 1469 CSRARC(fc, SPED_MAP) = htonl(*p++); 1470 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1471 /* don't byte-swap uint8_t array */ 1472 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1473 1474 fc->max_hop = fc->max_node - i_branch; 1475 printf(", maxhop <= %d", fc->max_hop); 1476 1477 if(fc->irm == -1 ){ 1478 printf(", Not found IRM capable node"); 1479 }else{ 1480 printf(", cable IRM = %d", fc->irm); 1481 if (fc->irm == fc->nodeid) 1482 printf(" (me)"); 1483 } 1484 printf("\n"); 1485 1486 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1487 if (fc->irm == fc->nodeid) { 1488 fc->status = FWBUSMGRDONE; 1489 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1490 fw_bmr(fc); 1491 } else { 1492 fc->status = FWBUSMGRELECT; 1493 fw_callout_reset(&fc->bmr_callout, hz/8, 1494 (void *)fw_try_bmr, (void *)fc); 1495 } 1496 } else 1497 fc->status = FWBUSMGRDONE; 1498 1499 fw_callout_reset(&fc->busprobe_callout, hz/4, 1500 (void *)fw_bus_probe, (void *)fc); 1501 } 1502 1503 /* 1504 * To probe devices on the IEEE1394 bus. 1505 */ 1506 static void 1507 fw_bus_probe(struct firewire_comm *fc) 1508 { 1509 int s; 1510 struct fw_device *fwdev; 1511 1512 s = splfw(); 1513 fc->status = FWBUSEXPLORE; 1514 1515 /* Invalidate all devices, just after bus reset. */ 1516 STAILQ_FOREACH(fwdev, &fc->devices, link) 1517 if (fwdev->status != FWDEVINVAL) { 1518 fwdev->status = FWDEVINVAL; 1519 fwdev->rcnt = 0; 1520 } 1521 splx(s); 1522 1523 wakeup((void *)fc); 1524 } 1525 1526 static int 1527 fw_explore_read_quads(struct fw_device *fwdev, int offset, 1528 uint32_t *quad, int n) 1529 { 1530 struct fw_xfer *xfer; 1531 uint32_t tmp; 1532 int i, error; 1533 1534 1535 for (i = 0; i < n; i ++, offset += sizeof(uint32_t)) { 1536 xfer = fwmem_read_quad(fwdev, NULL, -1, 1537 0xffff, 0xf0000000 | offset, (void *)&tmp, 1538 fw_xferwake); 1539 if (xfer == NULL) 1540 return (-1); 1541 fw_xferwait(xfer); 1542 1543 if (xfer->resp == 0) 1544 quad[i] = ntohl(tmp); 1545 1546 error = xfer->resp; 1547 fw_xfer_free(xfer); 1548 if (error) 1549 return (error); 1550 } 1551 return (0); 1552 } 1553 1554 1555 static int 1556 fw_explore_csrblock(struct fw_device *fwdev, int offset, int recur) 1557 { 1558 int err, i, off; 1559 struct csrdirectory *dir; 1560 struct csrreg *reg; 1561 1562 1563 dir = (struct csrdirectory *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1564 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1565 (uint32_t *)dir, 1); 1566 if (err) 1567 return (-1); 1568 1569 offset += sizeof(uint32_t); 1570 reg = (struct csrreg *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1571 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1572 (uint32_t *)reg, dir->crc_len); 1573 if (err) 1574 return (-1); 1575 1576 /* XXX check CRC */ 1577 1578 off = CSRROMOFF + offset + sizeof(uint32_t) * (dir->crc_len - 1); 1579 if (fwdev->rommax < off) 1580 fwdev->rommax = off; 1581 1582 if (recur == 0) 1583 return (0); 1584 1585 for (i = 0; i < dir->crc_len; i ++, offset += sizeof(uint32_t)) { 1586 if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_D) 1587 recur = 1; 1588 else if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_L) 1589 recur = 0; 1590 else 1591 continue; 1592 1593 off = offset + reg[i].val * sizeof(uint32_t); 1594 if (off > CROMSIZE) { 1595 printf("%s: invalid offset %d\n", __FUNCTION__, off); 1596 return(-1); 1597 } 1598 err = fw_explore_csrblock(fwdev, off, recur); 1599 if (err) 1600 return (-1); 1601 } 1602 return (0); 1603 } 1604 1605 static int 1606 fw_explore_node(struct fw_device *dfwdev) 1607 { 1608 struct firewire_comm *fc; 1609 struct fw_device *fwdev, *pfwdev, *tfwdev; 1610 uint32_t *csr; 1611 struct csrhdr *hdr; 1612 struct bus_info *binfo; 1613 int err, node, spd; 1614 1615 fc = dfwdev->fc; 1616 csr = dfwdev->csrrom; 1617 node = dfwdev->dst; 1618 1619 /* First quad */ 1620 err = fw_explore_read_quads(dfwdev, CSRROMOFF, &csr[0], 1); 1621 if (err) 1622 return (-1); 1623 hdr = (struct csrhdr *)&csr[0]; 1624 if (hdr->info_len != 4) { 1625 if (firewire_debug) 1626 printf("node%d: wrong bus info len(%d)\n", 1627 node, hdr->info_len); 1628 return (-1); 1629 } 1630 1631 /* bus info */ 1632 err = fw_explore_read_quads(dfwdev, CSRROMOFF + 0x04, &csr[1], 4); 1633 if (err) 1634 return (-1); 1635 binfo = (struct bus_info *)&csr[1]; 1636 if (binfo->bus_name != CSR_BUS_NAME_IEEE1394) { 1637 if (firewire_debug) 1638 printf("node%d: invalid bus name 0x%08x\n", 1639 node, binfo->bus_name); 1640 return (-1); 1641 } 1642 spd = fc->speed_map->speed[fc->nodeid][node]; 1643 STAILQ_FOREACH(fwdev, &fc->devices, link) 1644 if (FW_EUI64_EQUAL(fwdev->eui, binfo->eui64)) 1645 break; 1646 if (fwdev == NULL) { 1647 /* new device */ 1648 fwdev = malloc(sizeof(struct fw_device), M_FW, 1649 M_NOWAIT | M_ZERO); 1650 if (fwdev == NULL) { 1651 if (firewire_debug) 1652 printf("node%d: no memory\n", node); 1653 return (-1); 1654 } 1655 fwdev->fc = fc; 1656 fwdev->eui = binfo->eui64; 1657 fwdev->status = FWDEVNEW; 1658 /* insert into sorted fwdev list */ 1659 pfwdev = NULL; 1660 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1661 if (tfwdev->eui.hi > fwdev->eui.hi || 1662 (tfwdev->eui.hi == fwdev->eui.hi && 1663 tfwdev->eui.lo > fwdev->eui.lo)) 1664 break; 1665 pfwdev = tfwdev; 1666 } 1667 if (pfwdev == NULL) 1668 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1669 else 1670 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1671 1672 fw_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1673 fw_linkspeed[spd], 1674 fwdev->eui.hi, fwdev->eui.lo); 1675 1676 } else 1677 fwdev->status = FWDEVINIT; 1678 fwdev->dst = node; 1679 fwdev->speed = spd; 1680 1681 /* unchanged ? */ 1682 if (bcmp(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5) == 0) { 1683 if (firewire_debug) 1684 printf("node%d: crom unchanged\n", node); 1685 return (0); 1686 } 1687 1688 bzero(&fwdev->csrrom[0], CROMSIZE); 1689 1690 /* copy first quad and bus info block */ 1691 bcopy(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5); 1692 fwdev->rommax = CSRROMOFF + sizeof(uint32_t) * 4; 1693 1694 err = fw_explore_csrblock(fwdev, 0x14, 1); /* root directory */ 1695 1696 if (err) { 1697 fwdev->status = FWDEVINVAL; 1698 fwdev->csrrom[0] = 0; 1699 } 1700 return (err); 1701 1702 } 1703 1704 /* 1705 * Find the self_id packet for a node, ignoring sequels. 1706 */ 1707 static union fw_self_id * 1708 fw_find_self_id(struct firewire_comm *fc, int node) 1709 { 1710 uint32_t i; 1711 union fw_self_id *s; 1712 1713 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1714 s = &fc->topology_map->self_id[i]; 1715 if (s->p0.sequel) 1716 continue; 1717 if (s->p0.phy_id == node) 1718 return s; 1719 } 1720 return 0; 1721 } 1722 1723 static void 1724 fw_explore(struct firewire_comm *fc) 1725 { 1726 int node, err, s, i, todo, todo2, trys; 1727 char nodes[63]; 1728 struct fw_device *dfwdev; 1729 union fw_self_id *fwsid; 1730 1731 todo = 0; 1732 dfwdev = malloc(sizeof(*dfwdev), M_TEMP, M_NOWAIT); 1733 if (dfwdev == NULL) 1734 return; 1735 /* setup dummy fwdev */ 1736 dfwdev->fc = fc; 1737 dfwdev->speed = 0; 1738 dfwdev->maxrec = 8; /* 512 */ 1739 dfwdev->status = FWDEVINIT; 1740 1741 for (node = 0; node <= fc->max_node; node ++) { 1742 /* We don't probe myself and linkdown nodes */ 1743 if (node == fc->nodeid) 1744 continue; 1745 fwsid = fw_find_self_id(fc, node); 1746 if (!fwsid || !fwsid->p0.link_active) { 1747 if (firewire_debug) 1748 printf("node%d: link down\n", node); 1749 continue; 1750 } 1751 nodes[todo++] = node; 1752 } 1753 1754 s = splfw(); 1755 for (trys = 0; todo > 0 && trys < 3; trys ++) { 1756 todo2 = 0; 1757 for (i = 0; i < todo; i ++) { 1758 dfwdev->dst = nodes[i]; 1759 err = fw_explore_node(dfwdev); 1760 if (err) 1761 nodes[todo2++] = nodes[i]; 1762 if (firewire_debug) 1763 printf("%s: node %d, err = %d\n", 1764 __FUNCTION__, node, err); 1765 } 1766 todo = todo2; 1767 } 1768 splx(s); 1769 free(dfwdev, M_TEMP); 1770 } 1771 1772 static void 1773 fw_bus_probe_thread(void *arg) 1774 { 1775 struct firewire_comm *fc; 1776 1777 fc = (struct firewire_comm *)arg; 1778 1779 fw_config_pending_decr(); 1780 1781 fw_mtx_lock(&fc->wait_lock); 1782 while (fc->status != FWBUSDETACH) { 1783 if (fc->status == FWBUSEXPLORE) { 1784 fw_mtx_unlock(&fc->wait_lock); 1785 fw_explore(fc); 1786 fc->status = FWBUSEXPDONE; 1787 if (firewire_debug) 1788 printf("bus_explore done\n"); 1789 fw_attach_dev(fc); 1790 fw_mtx_lock(&fc->wait_lock); 1791 } 1792 fw_msleep((void *)fc, &fc->wait_lock, PWAIT|PCATCH, "-", 0); 1793 } 1794 fw_mtx_unlock(&fc->wait_lock); 1795 fw_kthread_exit(0); 1796 } 1797 1798 1799 /* 1800 * To attach sub-devices layer onto IEEE1394 bus. 1801 */ 1802 static void 1803 fw_attach_dev(struct firewire_comm *fc) 1804 { 1805 struct fw_device *fwdev, *next; 1806 struct firewire_dev_comm *fdc; 1807 struct fw_attach_args fwa; 1808 1809 fwa.name = "sbp"; 1810 fwa.fc = fc; 1811 1812 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1813 next = STAILQ_NEXT(fwdev, link); 1814 switch (fwdev->status) { 1815 case FWDEVNEW: 1816 FIREWIRE_SBP_ATTACH; 1817 1818 case FWDEVINIT: 1819 case FWDEVATTACHED: 1820 fwdev->status = FWDEVATTACHED; 1821 break; 1822 1823 case FWDEVINVAL: 1824 fwdev->rcnt ++; 1825 break; 1826 1827 default: 1828 /* XXX */ 1829 break; 1830 } 1831 } 1832 1833 FIREWIRE_CHILDREN_FOREACH_FUNC(post_explore, fdc); 1834 1835 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1836 next = STAILQ_NEXT(fwdev, link); 1837 if (fwdev->rcnt > 0 && fwdev->rcnt > hold_count) { 1838 /* 1839 * Remove devices which have not been seen 1840 * for a while. 1841 */ 1842 FIREWIRE_SBP_DETACH; 1843 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1844 free(fwdev, M_FW); 1845 } 1846 } 1847 1848 return; 1849 } 1850 1851 /* 1852 * To allocate unique transaction label. 1853 */ 1854 static int 1855 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1856 { 1857 u_int dst, new_tlabel; 1858 struct fw_xfer *txfer; 1859 int s; 1860 1861 dst = xfer->send.hdr.mode.hdr.dst & 0x3f; 1862 s = splfw(); 1863 fw_mtx_lock(&fc->tlabel_lock); 1864 new_tlabel = (fc->last_tlabel[dst] + 1) & 0x3f; 1865 STAILQ_FOREACH(txfer, &fc->tlabels[new_tlabel], tlabel) 1866 if ((txfer->send.hdr.mode.hdr.dst & 0x3f) == dst) 1867 break; 1868 if(txfer == NULL) { 1869 fc->last_tlabel[dst] = new_tlabel; 1870 STAILQ_INSERT_TAIL(&fc->tlabels[new_tlabel], xfer, tlabel); 1871 fw_mtx_unlock(&fc->tlabel_lock); 1872 splx(s); 1873 xfer->tl = new_tlabel; 1874 xfer->send.hdr.mode.hdr.tlrt = new_tlabel << 2; 1875 if (firewire_debug > 1) 1876 printf("fw_get_tlabel: dst=%d tl=%d\n", dst, new_tlabel); 1877 return (new_tlabel); 1878 } 1879 fw_mtx_unlock(&fc->tlabel_lock); 1880 splx(s); 1881 1882 if (firewire_debug > 1) 1883 printf("fw_get_tlabel: no free tlabel\n"); 1884 return (-1); 1885 } 1886 1887 static void 1888 fw_rcv_copy(struct fw_rcv_buf *rb) 1889 { 1890 struct fw_pkt *pkt; 1891 u_char *p; 1892 const struct tcode_info *tinfo; 1893 u_int res, i, len, plen; 1894 1895 rb->xfer->recv.spd = rb->spd; 1896 1897 pkt = (struct fw_pkt *)rb->vec->iov_base; 1898 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1899 1900 /* Copy header */ 1901 p = (u_char *)&rb->xfer->recv.hdr; 1902 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1903 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1904 rb->vec->iov_len -= tinfo->hdr_len; 1905 1906 /* Copy payload */ 1907 p = (u_char *)rb->xfer->recv.payload; 1908 res = rb->xfer->recv.pay_len; 1909 1910 /* special handling for RRESQ */ 1911 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1912 p != NULL && res >= sizeof(uint32_t)) { 1913 *(uint32_t *)p = pkt->mode.rresq.data; 1914 rb->xfer->recv.pay_len = sizeof(uint32_t); 1915 return; 1916 } 1917 1918 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1919 return; 1920 1921 plen = pkt->mode.rresb.len; 1922 1923 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1924 len = MIN(rb->vec->iov_len, plen); 1925 if (res < len) { 1926 printf("rcv buffer(%d) is %d bytes short.\n", 1927 rb->xfer->recv.pay_len, len - res); 1928 len = res; 1929 } 1930 if (p) { 1931 bcopy(rb->vec->iov_base, p, len); 1932 p += len; 1933 } 1934 res -= len; 1935 plen -= len; 1936 if (res == 0 || plen == 0) 1937 break; 1938 } 1939 rb->xfer->recv.pay_len -= res; 1940 1941 } 1942 1943 /* 1944 * Generic packet receiving process. 1945 */ 1946 void 1947 fw_rcv(struct fw_rcv_buf *rb) 1948 { 1949 struct fw_pkt *fp, *resfp; 1950 struct fw_bind *bind; 1951 int tcode; 1952 int i, len, oldstate; 1953 #if 0 1954 { 1955 uint32_t *qld; 1956 int i; 1957 qld = (uint32_t *)buf; 1958 printf("spd %d len:%d\n", spd, len); 1959 for( i = 0 ; i <= len && i < 32; i+= 4){ 1960 printf("0x%08x ", ntohl(qld[i/4])); 1961 if((i % 16) == 15) printf("\n"); 1962 } 1963 if((i % 16) != 15) printf("\n"); 1964 } 1965 #endif 1966 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1967 tcode = fp->mode.common.tcode; 1968 switch (tcode) { 1969 case FWTCODE_WRES: 1970 case FWTCODE_RRESQ: 1971 case FWTCODE_RRESB: 1972 case FWTCODE_LRES: 1973 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1974 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tcode); 1975 if(rb->xfer == NULL) { 1976 printf("fw_rcv: unknown response " 1977 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1978 tcode_str[tcode], tcode, 1979 fp->mode.hdr.src, 1980 fp->mode.hdr.tlrt >> 2, 1981 fp->mode.hdr.tlrt & 3, 1982 fp->mode.rresq.data); 1983 #if 0 1984 printf("try ad-hoc work around!!\n"); 1985 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1986 (fp->mode.hdr.tlrt >> 2)^3); 1987 if (rb->xfer == NULL) { 1988 printf("no use...\n"); 1989 return; 1990 } 1991 #else 1992 return; 1993 #endif 1994 } 1995 fw_rcv_copy(rb); 1996 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1997 rb->xfer->resp = EIO; 1998 else 1999 rb->xfer->resp = 0; 2000 /* make sure the packet is drained in AT queue */ 2001 oldstate = rb->xfer->flag; 2002 rb->xfer->flag = FWXF_RCVD; 2003 switch (oldstate) { 2004 case FWXF_SENT: 2005 fw_xfer_done(rb->xfer); 2006 break; 2007 case FWXF_START: 2008 #if 0 2009 if (firewire_debug) 2010 printf("not sent yet tl=%x\n", rb->xfer->tl); 2011 #endif 2012 break; 2013 default: 2014 printf("unexpected flag 0x%02x\n", rb->xfer->flag); 2015 } 2016 return; 2017 case FWTCODE_WREQQ: 2018 case FWTCODE_WREQB: 2019 case FWTCODE_RREQQ: 2020 case FWTCODE_RREQB: 2021 case FWTCODE_LREQ: 2022 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 2023 fp->mode.rreqq.dest_lo); 2024 if(bind == NULL){ 2025 #if 1 2026 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 2027 #if defined(__DragonFly__) || \ 2028 (defined(__FreeBSD__) && __FreeBSD_version < 500000) 2029 " src=0x%x data=%lx\n", 2030 #else 2031 " src=0x%x data=%x\n", 2032 #endif 2033 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 2034 tcode_str[tcode], tcode, 2035 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 2036 #endif 2037 if (rb->fc->status == FWBUSINIT) { 2038 printf("fw_rcv: cannot respond(bus reset)!\n"); 2039 return; 2040 } 2041 rb->xfer = fw_xfer_alloc(M_FWXFER); 2042 if(rb->xfer == NULL){ 2043 return; 2044 } 2045 rb->xfer->send.spd = rb->spd; 2046 rb->xfer->send.pay_len = 0; 2047 resfp = &rb->xfer->send.hdr; 2048 switch (tcode) { 2049 case FWTCODE_WREQQ: 2050 case FWTCODE_WREQB: 2051 resfp->mode.hdr.tcode = FWTCODE_WRES; 2052 break; 2053 case FWTCODE_RREQQ: 2054 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 2055 break; 2056 case FWTCODE_RREQB: 2057 resfp->mode.hdr.tcode = FWTCODE_RRESB; 2058 break; 2059 case FWTCODE_LREQ: 2060 resfp->mode.hdr.tcode = FWTCODE_LRES; 2061 break; 2062 } 2063 resfp->mode.hdr.dst = fp->mode.hdr.src; 2064 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 2065 resfp->mode.hdr.pri = fp->mode.hdr.pri; 2066 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 2067 resfp->mode.rresb.extcode = 0; 2068 resfp->mode.rresb.len = 0; 2069 /* 2070 rb->xfer->hand = fw_xferwake; 2071 */ 2072 rb->xfer->hand = fw_xfer_free; 2073 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 2074 fw_xfer_free(rb->xfer); 2075 return; 2076 } 2077 return; 2078 } 2079 len = 0; 2080 for (i = 0; i < rb->nvec; i ++) 2081 len += rb->vec[i].iov_len; 2082 rb->xfer = STAILQ_FIRST(&bind->xferlist); 2083 if (rb->xfer == NULL) { 2084 #if 1 2085 printf("Discard a packet for this bind.\n"); 2086 #endif 2087 return; 2088 } 2089 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 2090 fw_rcv_copy(rb); 2091 rb->xfer->hand(rb->xfer); 2092 return; 2093 #if 0 /* shouldn't happen ?? or for GASP */ 2094 case FWTCODE_STREAM: 2095 { 2096 struct fw_xferq *xferq; 2097 2098 xferq = rb->fc->ir[sub]; 2099 #if 0 2100 printf("stream rcv dma %d len %d off %d spd %d\n", 2101 sub, len, off, spd); 2102 #endif 2103 if(xferq->queued >= xferq->maxq) { 2104 printf("receive queue is full\n"); 2105 return; 2106 } 2107 /* XXX get xfer from xfer queue, we don't need copy for 2108 per packet mode */ 2109 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 2110 vec[0].iov_len); 2111 if (rb->xfer == NULL) 2112 return; 2113 fw_rcv_copy(rb) 2114 s = splfw(); 2115 xferq->queued++; 2116 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 2117 splx(s); 2118 sc = device_get_softc(rb->fc->bdev); 2119 #if defined(__DragonFly__) || \ 2120 (defined(__FreeBSD__) && __FreeBSD_version < 500000) 2121 if (&xferq->rsel.si_pid != 0) 2122 #else 2123 if (SEL_WAITING(&xferq->rsel)) 2124 #endif 2125 selwakeuppri(&xferq->rsel, FWPRI); 2126 if (xferq->flag & FWXFERQ_WAKEUP) { 2127 xferq->flag &= ~FWXFERQ_WAKEUP; 2128 wakeup((void *)xferq); 2129 } 2130 if (xferq->flag & FWXFERQ_HANDLER) { 2131 xferq->hand(xferq); 2132 } 2133 return; 2134 break; 2135 } 2136 #endif 2137 default: 2138 printf("fw_rcv: unknow tcode %d\n", tcode); 2139 break; 2140 } 2141 } 2142 2143 /* 2144 * Post process for Bus Manager election process. 2145 */ 2146 static void 2147 fw_try_bmr_callback(struct fw_xfer *xfer) 2148 { 2149 struct firewire_comm *fc; 2150 int bmr; 2151 2152 if (xfer == NULL) 2153 return; 2154 fc = xfer->fc; 2155 if (xfer->resp != 0) 2156 goto error; 2157 if (xfer->recv.payload == NULL) 2158 goto error; 2159 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2160 goto error; 2161 2162 bmr = ntohl(xfer->recv.payload[0]); 2163 if (bmr == 0x3f) 2164 bmr = fc->nodeid; 2165 2166 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2167 fw_xfer_free_buf(xfer); 2168 fw_bmr(fc); 2169 return; 2170 2171 error: 2172 fw_printf(fc->bdev, "bus manager election failed\n"); 2173 fw_xfer_free_buf(xfer); 2174 } 2175 2176 2177 /* 2178 * To candidate Bus Manager election process. 2179 */ 2180 static void 2181 fw_try_bmr(void *arg) 2182 { 2183 struct fw_xfer *xfer; 2184 struct firewire_comm *fc = (struct firewire_comm *)arg; 2185 struct fw_pkt *fp; 2186 int err = 0; 2187 2188 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2189 if(xfer == NULL){ 2190 return; 2191 } 2192 xfer->send.spd = 0; 2193 fc->status = FWBUSMGRELECT; 2194 2195 fp = &xfer->send.hdr; 2196 fp->mode.lreq.dest_hi = 0xffff; 2197 fp->mode.lreq.tlrt = 0; 2198 fp->mode.lreq.tcode = FWTCODE_LREQ; 2199 fp->mode.lreq.pri = 0; 2200 fp->mode.lreq.src = 0; 2201 fp->mode.lreq.len = 8; 2202 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2203 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2204 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2205 xfer->send.payload[0] = htonl(0x3f); 2206 xfer->send.payload[1] = htonl(fc->nodeid); 2207 xfer->hand = fw_try_bmr_callback; 2208 2209 err = fw_asyreq(fc, -1, xfer); 2210 if(err){ 2211 fw_xfer_free_buf(xfer); 2212 return; 2213 } 2214 return; 2215 } 2216 2217 #ifdef FW_VMACCESS 2218 /* 2219 * Software implementation for physical memory block access. 2220 * XXX:Too slow, usef for debug purpose only. 2221 */ 2222 static void 2223 fw_vmaccess(struct fw_xfer *xfer){ 2224 struct fw_pkt *rfp, *sfp = NULL; 2225 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2226 2227 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2228 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2229 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2230 if(xfer->resp != 0){ 2231 fw_xfer_free( xfer); 2232 return; 2233 } 2234 if(xfer->recv.buf == NULL){ 2235 fw_xfer_free( xfer); 2236 return; 2237 } 2238 rfp = (struct fw_pkt *)xfer->recv.buf; 2239 switch(rfp->mode.hdr.tcode){ 2240 /* XXX need fix for 64bit arch */ 2241 case FWTCODE_WREQB: 2242 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2243 xfer->send.len = 12; 2244 sfp = (struct fw_pkt *)xfer->send.buf; 2245 bcopy(rfp->mode.wreqb.payload, 2246 (void *)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2247 sfp->mode.wres.tcode = FWTCODE_WRES; 2248 sfp->mode.wres.rtcode = 0; 2249 break; 2250 case FWTCODE_WREQQ: 2251 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2252 xfer->send.len = 12; 2253 sfp->mode.wres.tcode = FWTCODE_WRES; 2254 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2255 sfp->mode.wres.rtcode = 0; 2256 break; 2257 case FWTCODE_RREQB: 2258 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2259 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2260 sfp = (struct fw_pkt *)xfer->send.buf; 2261 bcopy((void *)ntohl(rfp->mode.rreqb.dest_lo), 2262 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2263 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2264 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2265 sfp->mode.rresb.rtcode = 0; 2266 sfp->mode.rresb.extcode = 0; 2267 break; 2268 case FWTCODE_RREQQ: 2269 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2270 xfer->send.len = 16; 2271 sfp = (struct fw_pkt *)xfer->send.buf; 2272 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2273 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2274 sfp->mode.rresb.rtcode = 0; 2275 break; 2276 default: 2277 fw_xfer_free( xfer); 2278 return; 2279 } 2280 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2281 xfer->dst = ntohs(rfp->mode.hdr.src); 2282 xfer->hand = fw_xfer_free; 2283 2284 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2285 sfp->mode.hdr.pri = 0; 2286 2287 fw_asyreq(xfer->fc, -1, xfer); 2288 /**/ 2289 return; 2290 } 2291 #endif 2292 2293 /* 2294 * CRC16 check-sum for IEEE1394 register blocks. 2295 */ 2296 uint16_t 2297 fw_crc16(uint32_t *ptr, uint32_t len){ 2298 uint32_t i, sum, crc = 0; 2299 int shift; 2300 len = (len + 3) & ~3; 2301 for(i = 0 ; i < len ; i+= 4){ 2302 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2303 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2304 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2305 } 2306 crc &= 0xffff; 2307 } 2308 return((uint16_t) crc); 2309 } 2310 2311 static int 2312 fw_bmr(struct firewire_comm *fc) 2313 { 2314 struct fw_device fwdev; 2315 union fw_self_id *self_id; 2316 int cmstr; 2317 uint32_t quad; 2318 2319 /* Check to see if the current root node is cycle master capable */ 2320 self_id = fw_find_self_id(fc, fc->max_node); 2321 if (fc->max_node > 0) { 2322 /* XXX check cmc bit of businfo block rather than contender */ 2323 if (self_id->p0.link_active && self_id->p0.contender) 2324 cmstr = fc->max_node; 2325 else { 2326 fw_printf(fc->bdev, 2327 "root node is not cycle master capable\n"); 2328 /* XXX shall we be the cycle master? */ 2329 cmstr = fc->nodeid; 2330 /* XXX need bus reset */ 2331 } 2332 } else 2333 cmstr = -1; 2334 2335 fw_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2336 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2337 /* We are not the bus manager */ 2338 printf("\n"); 2339 return(0); 2340 } 2341 printf("(me)\n"); 2342 2343 /* Optimize gapcount */ 2344 if(fc->max_hop <= MAX_GAPHOP ) 2345 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2346 /* If we are the cycle master, nothing to do */ 2347 if (cmstr == fc->nodeid || cmstr == -1) 2348 return 0; 2349 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2350 bzero(&fwdev, sizeof(fwdev)); 2351 fwdev.fc = fc; 2352 fwdev.dst = cmstr; 2353 fwdev.speed = 0; 2354 fwdev.maxrec = 8; /* 512 */ 2355 fwdev.status = FWDEVINIT; 2356 /* Set cmstr bit on the cycle master */ 2357 quad = htonl(1 << 8); 2358 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2359 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2360 2361 return 0; 2362 } 2363 2364 int 2365 fw_open_isodma(struct firewire_comm *fc, int tx) 2366 { 2367 struct fw_xferq **xferqa; 2368 struct fw_xferq *xferq; 2369 int i; 2370 2371 if (tx) 2372 xferqa = &fc->it[0]; 2373 else 2374 xferqa = &fc->ir[0]; 2375 2376 FW_GLOCK(fc); 2377 for (i = 0; i < fc->nisodma; i ++) { 2378 xferq = xferqa[i]; 2379 if ((xferq->flag & FWXFERQ_OPEN) == 0) { 2380 xferq->flag |= FWXFERQ_OPEN; 2381 break; 2382 } 2383 } 2384 if (i == fc->nisodma) { 2385 printf("no free dma channel (tx=%d)\n", tx); 2386 i = -1; 2387 } 2388 FW_GUNLOCK(fc); 2389 return (i); 2390 } 2391 2392 #if defined(__FreeBSD__) 2393 static int 2394 fw_modevent(module_t mode, int type, void *data) 2395 { 2396 int err = 0; 2397 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2398 static eventhandler_tag fwdev_ehtag = NULL; 2399 #endif 2400 2401 switch (type) { 2402 case MOD_LOAD: 2403 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2404 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2405 fwdev_clone, 0, 1000); 2406 #endif 2407 break; 2408 case MOD_UNLOAD: 2409 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2410 if (fwdev_ehtag != NULL) 2411 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2412 #endif 2413 break; 2414 case MOD_SHUTDOWN: 2415 break; 2416 default: 2417 return (EOPNOTSUPP); 2418 } 2419 return (err); 2420 } 2421 2422 2423 #ifdef __DragonFly__ 2424 DECLARE_DUMMY_MODULE(firewire); 2425 #endif 2426 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2427 MODULE_VERSION(firewire, 1); 2428 #endif 2429
Indexes created Thu Oct 02 14:10:14 GMT 2025