1 /* $NetBSD: firewire.c,v 1.19 2007/12/15 00:39:28 perry 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 1.19 2007/12/15 00:39:28 perry 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 an LKM 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 (struct device *, struct cfdata *, void *); 200 void firewireattach (struct device *, struct device *, void *); 201 int firewiredetach (struct device *, 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(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(struct device *parent, struct cfdata *cf, 456 void *aux) 457 { 458 struct fwbus_attach_args *faa = (struct fwbus_attach_args *)aux; 459 460 if (strcmp(faa->name, "ieee1394if") == 0) 461 return (1); 462 return (0); 463 } 464 #endif 465 466 static void 467 firewire_xfer_timeout(void *arg, int pending) 468 { 469 struct firewire_comm *fc = (struct firewire_comm *)arg; 470 struct fw_xfer *xfer, *txfer; 471 struct timeval tv; 472 struct timeval split_timeout; 473 STAILQ_HEAD(, fw_xfer) xfer_timeout; 474 int i, s; 475 476 split_timeout.tv_sec = 0; 477 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 478 479 microtime(&tv); 480 fw_timevalsub(&tv, &split_timeout); 481 STAILQ_INIT(&xfer_timeout); 482 483 s = splfw(); 484 fw_mtx_lock(&fc->tlabel_lock); 485 for (i = 0; i < 0x40; i ++) { 486 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 487 if ((xfer->flag & FWXF_SENT) == 0) 488 /* not sent yet */ 489 break; 490 if (fw_timevalcmp(&xfer->tv, &tv, >)) 491 /* the rests are newer than this */ 492 break; 493 fw_printf(fc->bdev, 494 "split transaction timeout: " 495 "tl=0x%x flag=0x%02x\n", i, xfer->flag); 496 fw_dump_hdr(&xfer->send.hdr, "send"); 497 xfer->resp = ETIMEDOUT; 498 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel); 499 STAILQ_INSERT_TAIL(&xfer_timeout, xfer, tlabel); 500 } 501 } 502 fw_mtx_unlock(&fc->tlabel_lock); 503 splx(s); 504 fc->timeout(fc); 505 506 STAILQ_FOREACH_SAFE(xfer, &xfer_timeout, tlabel, txfer) 507 xfer->hand(xfer); 508 } 509 510 #define WATCHDOG_HZ 10 511 static void 512 firewire_watchdog(void *arg) 513 { 514 struct firewire_comm *fc; 515 static int watchdog_clock = 0; 516 517 fc = (struct firewire_comm *)arg; 518 519 /* 520 * At boot stage, the device interrupt is disabled and 521 * We encounter a timeout easily. To avoid this, 522 * ignore clock interrupt for a while. 523 */ 524 if (watchdog_clock > WATCHDOG_HZ * 15) 525 fw_taskqueue_enqueue(fc->taskqueue, &fc->task_timeout); 526 else 527 watchdog_clock ++; 528 529 fw_callout_reset(&fc->timeout_callout, hz / WATCHDOG_HZ, 530 (void *)firewire_watchdog, (void *)fc); 531 } 532 533 /* 534 * The attach routine. 535 */ 536 FW_ATTACH(firewire) 537 { 538 FW_ATTACH_START(firewire, sc, fwa); 539 FIREWIRE_ATTACH_START; 540 541 sc->fc = fc; 542 fc->status = FWBUSNOTREADY; 543 544 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 545 546 FWDEV_MAKEDEV(sc); 547 548 fw_mtx_init(&fc->wait_lock, "fwwait", NULL, MTX_DEF); 549 fw_mtx_init(&fc->tlabel_lock, "fwtlabel", NULL, MTX_DEF); 550 fw_callout_init(&fc->timeout_callout); 551 fw_callout_init(&fc->bmr_callout); 552 fw_callout_init(&fc->busprobe_callout); 553 FW_TASK_INIT(&fc->task_timeout, 0, firewire_xfer_timeout, (void *)fc); 554 555 fw_callout_reset(&sc->fc->timeout_callout, hz, 556 (void *)firewire_watchdog, (void *)sc->fc); 557 558 /* create thread */ 559 fw_kthread_create(fw_bus_probe_thread, (void *)fc, &fc->probe_thread, 560 "fw%d_probe", fw_get_unit(fc->bdev)); 561 fw_config_pending_incr(); 562 563 FIREWIRE_GENERIC_ATTACH; 564 565 /* bus_reset */ 566 fw_busreset(fc, FWBUSNOTREADY); 567 fc->ibr(fc); 568 569 #ifdef __NetBSD__ 570 if (!pmf_device_register(self, NULL, NULL)) 571 aprint_error_dev(self, "couldn't establish power handler\n"); 572 #endif 573 574 FW_ATTACH_RETURN(0); 575 } 576 577 #if defined(__FreeBSD__) 578 /* 579 * Attach it as child. 580 */ 581 static device_t 582 firewire_add_child(device_t dev, int order, const char *name, int unit) 583 { 584 device_t child; 585 struct firewire_softc *sc; 586 struct fw_attach_args fwa; 587 588 sc = (struct firewire_softc *)device_get_softc(dev); 589 child = device_add_child(dev, name, unit); 590 if (child) { 591 fwa.name = name; 592 fwa.fc = sc->fc; 593 fwa.fwdev = NULL; 594 device_set_ivars(child, &fwa); 595 device_probe_and_attach(child); 596 } 597 598 return child; 599 } 600 601 static int 602 firewire_resume(device_t dev) 603 { 604 struct firewire_softc *sc; 605 606 sc = (struct firewire_softc *)device_get_softc(dev); 607 sc->fc->status = FWBUSNOTREADY; 608 609 bus_generic_resume(dev); 610 611 return(0); 612 } 613 #endif 614 615 /* 616 * Dettach it. 617 */ 618 FW_DETACH(firewire) 619 { 620 FW_DETACH_START(firewire, sc); 621 struct firewire_comm *fc; 622 struct fw_device *fwdev, *fwdev_next; 623 624 fc = sc->fc; 625 fw_mtx_lock(&fc->wait_lock); 626 fc->status = FWBUSDETACH; 627 wakeup(fc); 628 if (fw_msleep(fc->probe_thread, 629 &fc->wait_lock, PWAIT, "fwthr", hz * 60)) 630 printf("firewire probe thread didn't die\n"); 631 fw_mtx_unlock(&fc->wait_lock); 632 633 FWDEV_DESTROYDEV(sc); 634 FIREWIRE_GENERIC_DETACH; 635 636 fw_callout_stop(&fc->timeout_callout); 637 fw_callout_stop(&fc->bmr_callout); 638 fw_callout_stop(&fc->busprobe_callout); 639 640 /* XXX xfree_free and untimeout on all xfers */ 641 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; 642 fwdev = fwdev_next) { 643 fwdev_next = STAILQ_NEXT(fwdev, link); 644 free(fwdev, M_FW); 645 } 646 free(fc->topology_map, M_FW); 647 free(fc->speed_map, M_FW); 648 free(fc->crom_src_buf, M_FW); 649 650 fw_mtx_destroy(&fc->wait_lock); 651 fw_mtx_destroy(&fc->tlabel_lock); 652 return(0); 653 } 654 #if defined(__FreeBSD__) 655 #if 0 656 static int 657 firewire_shutdown( device_t dev ) 658 { 659 return 0; 660 } 661 #endif 662 #elif defined(__NetBSD__) 663 int 664 firewire_print(void *aux, const char *pnp) 665 { 666 struct fw_attach_args *fwa = (struct fw_attach_args *)aux; 667 668 if (pnp) 669 aprint_normal("%s at %s", fwa->name, pnp); 670 671 return UNCONF; 672 } 673 674 int 675 firewire_resume(struct firewire_comm *fc) 676 { 677 678 fc->status = FWBUSNOTREADY; 679 return 0; 680 } 681 #endif 682 683 static void 684 fw_xferq_drain(struct fw_xferq *xferq) 685 { 686 struct fw_xfer *xfer; 687 688 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 689 STAILQ_REMOVE_HEAD(&xferq->q, link); 690 #if 0 691 xferq->queued --; 692 #endif 693 xfer->resp = EAGAIN; 694 xfer->flag = FWXF_SENTERR; 695 fw_xfer_done(xfer); 696 } 697 } 698 699 void 700 fw_drain_txq(struct firewire_comm *fc) 701 { 702 struct fw_xfer *xfer, *txfer; 703 STAILQ_HEAD(, fw_xfer) xfer_drain; 704 int i; 705 706 STAILQ_INIT(&xfer_drain); 707 708 FW_GLOCK(fc); 709 fw_xferq_drain(fc->atq); 710 fw_xferq_drain(fc->ats); 711 for(i = 0; i < fc->nisodma; i++) 712 fw_xferq_drain(fc->it[i]); 713 FW_GUNLOCK(fc); 714 715 fw_mtx_lock(&fc->tlabel_lock); 716 for (i = 0; i < 0x40; i ++) 717 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 718 if (firewire_debug) 719 printf("tl=%d flag=%d\n", i, xfer->flag); 720 xfer->resp = EAGAIN; 721 STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel); 722 STAILQ_INSERT_TAIL(&xfer_drain, xfer, tlabel); 723 } 724 fw_mtx_unlock(&fc->tlabel_lock); 725 726 STAILQ_FOREACH_SAFE(xfer, &xfer_drain, tlabel, txfer) 727 xfer->hand(xfer); 728 } 729 730 static void 731 fw_reset_csr(struct firewire_comm *fc) 732 { 733 int i; 734 735 CSRARC(fc, STATE_CLEAR) 736 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 737 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 738 CSRARC(fc, NODE_IDS) = 0x3f; 739 740 CSRARC(fc, TOPO_MAP + 8) = 0; 741 fc->irm = -1; 742 743 fc->max_node = -1; 744 745 for(i = 2; i < 0x100/4 - 2 ; i++){ 746 CSRARC(fc, SPED_MAP + i * 4) = 0; 747 } 748 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 749 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 750 CSRARC(fc, RESET_START) = 0; 751 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 752 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 753 CSRARC(fc, CYCLE_TIME) = 0x0; 754 CSRARC(fc, BUS_TIME) = 0x0; 755 CSRARC(fc, BUS_MGR_ID) = 0x3f; 756 CSRARC(fc, BANDWIDTH_AV) = 4915; 757 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 758 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 759 CSRARC(fc, IP_CHANNELS) = (1 << 31); 760 761 CSRARC(fc, CONF_ROM) = 0x04 << 24; 762 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 763 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 764 1 << 28 | 0xff << 16 | 0x09 << 8; 765 CSRARC(fc, CONF_ROM + 0xc) = 0; 766 767 /* DV depend CSRs see blue book */ 768 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 769 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 770 771 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 772 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 773 } 774 775 static void 776 fw_init_crom(struct firewire_comm *fc) 777 { 778 struct crom_src *src; 779 780 fc->crom_src_buf = (struct crom_src_buf *) 781 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 782 if (fc->crom_src_buf == NULL) 783 return; 784 785 src = &fc->crom_src_buf->src; 786 bzero(src, sizeof(struct crom_src)); 787 788 /* BUS info sample */ 789 src->hdr.info_len = 4; 790 791 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 792 793 src->businfo.irmc = 1; 794 src->businfo.cmc = 1; 795 src->businfo.isc = 1; 796 src->businfo.bmc = 1; 797 src->businfo.pmc = 0; 798 src->businfo.cyc_clk_acc = 100; 799 src->businfo.max_rec = fc->maxrec; 800 src->businfo.max_rom = MAXROM_4; 801 src->businfo.generation = 1; 802 src->businfo.link_spd = fc->speed; 803 804 src->businfo.eui64.hi = fc->eui.hi; 805 src->businfo.eui64.lo = fc->eui.lo; 806 807 STAILQ_INIT(&src->chunk_list); 808 809 fc->crom_src = src; 810 fc->crom_root = &fc->crom_src_buf->root; 811 } 812 813 static void 814 fw_reset_crom(struct firewire_comm *fc) 815 { 816 struct crom_src_buf *buf; 817 struct crom_src *src; 818 struct crom_chunk *root; 819 820 if (fc->crom_src_buf == NULL) 821 fw_init_crom(fc); 822 823 buf = fc->crom_src_buf; 824 src = fc->crom_src; 825 root = fc->crom_root; 826 827 STAILQ_INIT(&src->chunk_list); 828 829 bzero(root, sizeof(struct crom_chunk)); 830 crom_add_chunk(src, NULL, root, 0); 831 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 832 /* private company_id */ 833 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 834 crom_add_simple_text(src, root, &buf->vendor, PROJECT_STR); 835 crom_add_entry(root, CSRKEY_HW, OS_VER); 836 crom_add_simple_text(src, root, &buf->hw, hostname); 837 } 838 839 /* 840 * Called after bus reset. 841 */ 842 void 843 fw_busreset(struct firewire_comm *fc, uint32_t new_status) 844 { 845 struct firewire_dev_comm *fdc; 846 struct crom_src *src; 847 void *newrom; 848 849 switch(fc->status){ 850 case FWBUSMGRELECT: 851 fw_callout_stop(&fc->bmr_callout); 852 break; 853 default: 854 break; 855 } 856 fc->status = new_status; 857 fw_reset_csr(fc); 858 fw_reset_crom(fc); 859 860 FIREWIRE_CHILDREN_FOREACH_FUNC(post_busreset, fdc); 861 862 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 863 src = &fc->crom_src_buf->src; 864 crom_load(src, (uint32_t *)newrom, CROMSIZE); 865 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 866 /* bump generation and reload */ 867 src->businfo.generation ++; 868 /* generation must be between 0x2 and 0xF */ 869 if (src->businfo.generation < 2) 870 src->businfo.generation ++; 871 crom_load(src, (uint32_t *)newrom, CROMSIZE); 872 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 873 } 874 free(newrom, M_FW); 875 } 876 877 /* Call once after reboot */ 878 void fw_init(struct firewire_comm *fc) 879 { 880 int i; 881 #ifdef FW_VMACCESS 882 struct fw_xfer *xfer; 883 struct fw_bind *fwb; 884 #endif 885 886 fc->arq->queued = 0; 887 fc->ars->queued = 0; 888 fc->atq->queued = 0; 889 fc->ats->queued = 0; 890 891 fc->arq->buf = NULL; 892 fc->ars->buf = NULL; 893 fc->atq->buf = NULL; 894 fc->ats->buf = NULL; 895 896 fc->arq->flag = 0; 897 fc->ars->flag = 0; 898 fc->atq->flag = 0; 899 fc->ats->flag = 0; 900 901 STAILQ_INIT(&fc->atq->q); 902 STAILQ_INIT(&fc->ats->q); 903 904 for( i = 0 ; i < fc->nisodma ; i ++ ){ 905 fc->it[i]->queued = 0; 906 fc->ir[i]->queued = 0; 907 908 fc->it[i]->start = NULL; 909 fc->ir[i]->start = NULL; 910 911 fc->it[i]->buf = NULL; 912 fc->ir[i]->buf = NULL; 913 914 fc->it[i]->flag = FWXFERQ_STREAM; 915 fc->ir[i]->flag = FWXFERQ_STREAM; 916 917 STAILQ_INIT(&fc->it[i]->q); 918 STAILQ_INIT(&fc->ir[i]->q); 919 } 920 921 fc->arq->maxq = FWMAXQUEUE; 922 fc->ars->maxq = FWMAXQUEUE; 923 fc->atq->maxq = FWMAXQUEUE; 924 fc->ats->maxq = FWMAXQUEUE; 925 926 for( i = 0 ; i < fc->nisodma ; i++){ 927 fc->ir[i]->maxq = FWMAXQUEUE; 928 fc->it[i]->maxq = FWMAXQUEUE; 929 } 930 /* Initialize csr registers */ 931 fc->topology_map = (struct fw_topology_map *)malloc( 932 sizeof(struct fw_topology_map), 933 M_FW, M_NOWAIT | M_ZERO); 934 fc->speed_map = (struct fw_speed_map *)malloc( 935 sizeof(struct fw_speed_map), 936 M_FW, M_NOWAIT | M_ZERO); 937 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 938 CSRARC(fc, TOPO_MAP + 4) = 1; 939 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 940 CSRARC(fc, SPED_MAP + 4) = 1; 941 942 STAILQ_INIT(&fc->devices); 943 944 /* Initialize Async handlers */ 945 STAILQ_INIT(&fc->binds); 946 for( i = 0 ; i < 0x40 ; i++){ 947 STAILQ_INIT(&fc->tlabels[i]); 948 } 949 950 /* DV depend CSRs see blue book */ 951 #if 0 952 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 953 CSRARC(fc, oPCR) = 0x8000007a; 954 for(i = 4 ; i < 0x7c/4 ; i+=4){ 955 CSRARC(fc, i + oPCR) = 0x8000007a; 956 } 957 958 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 959 CSRARC(fc, iPCR) = 0x803f0000; 960 for(i = 4 ; i < 0x7c/4 ; i+=4){ 961 CSRARC(fc, i + iPCR) = 0x0; 962 } 963 #endif 964 965 fc->crom_src_buf = NULL; 966 967 #ifdef FW_VMACCESS 968 xfer = fw_xfer_alloc(); 969 if(xfer == NULL) return; 970 971 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 972 if(fwb == NULL){ 973 fw_xfer_free(xfer); 974 return; 975 } 976 xfer->hand = fw_vmaccess; 977 xfer->fc = fc; 978 xfer->sc = NULL; 979 980 fwb->start_hi = 0x2; 981 fwb->start_lo = 0; 982 fwb->addrlen = 0xffffffff; 983 fwb->xfer = xfer; 984 fw_bindadd(fc, fwb); 985 #endif 986 } 987 988 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 989 ((fwb)->end < (addr))?1:0) 990 991 /* 992 * To lookup bound process from IEEE1394 address. 993 */ 994 struct fw_bind * 995 fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 996 { 997 u_int64_t addr; 998 struct fw_bind *tfw, *r = NULL; 999 1000 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 1001 FW_GLOCK(fc); 1002 STAILQ_FOREACH(tfw, &fc->binds, fclist) 1003 if (BIND_CMP(addr, tfw) == 0) { 1004 r = tfw; 1005 break; 1006 } 1007 FW_GUNLOCK(fc); 1008 return(r); 1009 } 1010 1011 /* 1012 * To bind IEEE1394 address block to process. 1013 */ 1014 int 1015 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 1016 { 1017 struct fw_bind *tfw, *prev = NULL; 1018 int r = 0; 1019 1020 if (fwb->start > fwb->end) { 1021 printf("%s: invalid range\n", __func__); 1022 return EINVAL; 1023 } 1024 1025 FW_GLOCK(fc); 1026 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 1027 if (fwb->end < tfw->start) 1028 break; 1029 prev = tfw; 1030 } 1031 if (prev == NULL) 1032 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 1033 else if (prev->end < fwb->start) 1034 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 1035 else { 1036 printf("%s: bind failed\n", __func__); 1037 r = EBUSY; 1038 } 1039 FW_GUNLOCK(fc); 1040 return (r); 1041 } 1042 1043 /* 1044 * To free IEEE1394 address block. 1045 */ 1046 int 1047 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 1048 { 1049 #if 0 1050 struct fw_xfer *xfer, *next; 1051 #endif 1052 struct fw_bind *tfw; 1053 int s; 1054 1055 s = splfw(); 1056 FW_GLOCK(fc); 1057 STAILQ_FOREACH(tfw, &fc->binds, fclist) 1058 if (tfw == fwb) { 1059 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 1060 goto found; 1061 } 1062 1063 printf("%s: no such binding\n", __func__); 1064 FW_GUNLOCK(fc); 1065 splx(s); 1066 return (1); 1067 found: 1068 #if 0 1069 /* shall we do this? */ 1070 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 1071 next = STAILQ_NEXT(xfer, link); 1072 fw_xfer_free(xfer); 1073 } 1074 STAILQ_INIT(&fwb->xferlist); 1075 #endif 1076 FW_GUNLOCK(fc); 1077 1078 splx(s); 1079 return 0; 1080 } 1081 1082 int 1083 fw_xferlist_add(struct fw_xferlist *q, struct malloc_type *type, 1084 int slen, int rlen, int n, 1085 struct firewire_comm *fc, void *sc, void (*hand)(struct fw_xfer *)) 1086 { 1087 int i, s; 1088 struct fw_xfer *xfer; 1089 1090 for (i = 0; i < n; i++) { 1091 xfer = fw_xfer_alloc_buf(type, slen, rlen); 1092 if (xfer == NULL) 1093 return (n); 1094 xfer->fc = fc; 1095 xfer->sc = sc; 1096 xfer->hand = hand; 1097 s = splfw(); 1098 STAILQ_INSERT_TAIL(q, xfer, link); 1099 splx(s); 1100 } 1101 return (n); 1102 } 1103 1104 void 1105 fw_xferlist_remove(struct fw_xferlist *q) 1106 { 1107 struct fw_xfer *xfer, *next; 1108 1109 for (xfer = STAILQ_FIRST(q); xfer != NULL; xfer = next) { 1110 next = STAILQ_NEXT(xfer, link); 1111 fw_xfer_free_buf(xfer); 1112 } 1113 STAILQ_INIT(q); 1114 } 1115 1116 /* 1117 * dump packet header 1118 */ 1119 static void 1120 fw_dump_hdr(struct fw_pkt *fp, const char *prefix) 1121 { 1122 printf("%s: dst=0x%02x tl=0x%02x rt=%d tcode=0x%x pri=0x%x " 1123 "src=0x%03x\n", prefix, 1124 fp->mode.hdr.dst & 0x3f, 1125 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tlrt & 3, 1126 fp->mode.hdr.tcode, fp->mode.hdr.pri, 1127 fp->mode.hdr.src); 1128 } 1129 1130 /* 1131 * To free transaction label. 1132 */ 1133 static void 1134 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 1135 { 1136 struct fw_xfer *txfer; 1137 int s; 1138 1139 if (xfer->tl < 0) 1140 return; 1141 1142 s = splfw(); 1143 fw_mtx_lock(&fc->tlabel_lock); 1144 #if 1 /* make sure the label is allocated */ 1145 STAILQ_FOREACH(txfer, &fc->tlabels[xfer->tl], tlabel) 1146 if(txfer == xfer) 1147 break; 1148 if (txfer == NULL) { 1149 printf("%s: the xfer is not in the queue " 1150 "(tlabel=%d, flag=0x%x)\n", 1151 __func__, xfer->tl, xfer->flag); 1152 fw_dump_hdr(&xfer->send.hdr, "send"); 1153 fw_dump_hdr(&xfer->recv.hdr, "recv"); 1154 kdb_backtrace(); 1155 fw_mtx_unlock(&fc->tlabel_lock); 1156 splx(s); 1157 return; 1158 } 1159 #endif 1160 1161 STAILQ_REMOVE(&fc->tlabels[xfer->tl], xfer, fw_xfer, tlabel); 1162 fw_mtx_unlock(&fc->tlabel_lock); 1163 splx(s); 1164 return; 1165 } 1166 1167 /* 1168 * To obtain XFER structure by transaction label. 1169 */ 1170 static struct fw_xfer * 1171 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel, int tcode) 1172 { 1173 struct fw_xfer *xfer; 1174 int s = splfw(); 1175 int req; 1176 1177 fw_mtx_lock(&fc->tlabel_lock); 1178 STAILQ_FOREACH(xfer, &fc->tlabels[tlabel], tlabel) 1179 if(xfer->send.hdr.mode.hdr.dst == node) { 1180 fw_mtx_unlock(&fc->tlabel_lock); 1181 splx(s); 1182 FW_KASSERT(xfer->tl == tlabel, 1183 ("xfer->tl 0x%x != 0x%x", xfer->tl, tlabel)); 1184 /* extra sanity check */ 1185 req = xfer->send.hdr.mode.hdr.tcode; 1186 if (xfer->fc->tcode[req].valid_res != tcode) { 1187 printf("%s: invalid response tcode " 1188 "(0x%x for 0x%x)\n", __func__, 1189 tcode, req); 1190 return(NULL); 1191 } 1192 1193 if (firewire_debug > 2) 1194 printf("fw_tl2xfer: found tl=%d\n", tlabel); 1195 return(xfer); 1196 } 1197 fw_mtx_unlock(&fc->tlabel_lock); 1198 if (firewire_debug > 1) 1199 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 1200 splx(s); 1201 return(NULL); 1202 } 1203 1204 /* 1205 * To allocate IEEE1394 XFER structure. 1206 */ 1207 struct fw_xfer * 1208 fw_xfer_alloc(struct malloc_type *type) 1209 { 1210 struct fw_xfer *xfer; 1211 1212 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 1213 if (xfer == NULL) 1214 return xfer; 1215 1216 xfer->malloc = type; 1217 1218 return xfer; 1219 } 1220 1221 struct fw_xfer * 1222 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 1223 { 1224 struct fw_xfer *xfer; 1225 1226 xfer = fw_xfer_alloc(type); 1227 if (xfer == NULL) 1228 return(NULL); 1229 xfer->send.pay_len = send_len; 1230 xfer->recv.pay_len = recv_len; 1231 if (send_len > 0) { 1232 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 1233 if (xfer->send.payload == NULL) { 1234 fw_xfer_free(xfer); 1235 return(NULL); 1236 } 1237 } 1238 if (recv_len > 0) { 1239 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 1240 if (xfer->recv.payload == NULL) { 1241 if (xfer->send.payload != NULL) 1242 free(xfer->send.payload, type); 1243 fw_xfer_free(xfer); 1244 return(NULL); 1245 } 1246 } 1247 return(xfer); 1248 } 1249 1250 /* 1251 * IEEE1394 XFER post process. 1252 */ 1253 void 1254 fw_xfer_done(struct fw_xfer *xfer) 1255 { 1256 if (xfer->hand == NULL) { 1257 printf("hand == NULL\n"); 1258 return; 1259 } 1260 1261 if (xfer->fc == NULL) 1262 panic("fw_xfer_done: why xfer->fc is NULL?"); 1263 1264 fw_tl_free(xfer->fc, xfer); 1265 xfer->hand(xfer); 1266 } 1267 1268 void 1269 fw_xfer_unload(struct fw_xfer* xfer) 1270 { 1271 int s; 1272 1273 if(xfer == NULL ) return; 1274 if(xfer->flag & FWXF_INQ){ 1275 printf("fw_xfer_free FWXF_INQ\n"); 1276 s = splfw(); 1277 FW_GLOCK(xfer->fc); 1278 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1279 #if 0 1280 xfer->q->queued --; 1281 #endif 1282 FW_GUNLOCK(xfer->fc); 1283 splx(s); 1284 } 1285 if (xfer->fc != NULL) { 1286 #if 1 1287 if(xfer->flag == FWXF_START) 1288 /* 1289 * This could happen if: 1290 * 1. We call fwohci_arcv() before fwohci_txd(). 1291 * 2. firewire_watch() is called. 1292 */ 1293 printf("fw_xfer_free FWXF_START\n"); 1294 #endif 1295 } 1296 xfer->flag = FWXF_INIT; 1297 xfer->resp = 0; 1298 } 1299 /* 1300 * To free IEEE1394 XFER structure. 1301 */ 1302 void 1303 fw_xfer_free_buf( struct fw_xfer* xfer) 1304 { 1305 if (xfer == NULL) { 1306 printf("%s: xfer == NULL\n", __func__); 1307 return; 1308 } 1309 fw_xfer_unload(xfer); 1310 if(xfer->send.payload != NULL){ 1311 free(xfer->send.payload, xfer->malloc); 1312 } 1313 if(xfer->recv.payload != NULL){ 1314 free(xfer->recv.payload, xfer->malloc); 1315 } 1316 free(xfer, xfer->malloc); 1317 } 1318 1319 void 1320 fw_xfer_free( struct fw_xfer* xfer) 1321 { 1322 if (xfer == NULL) { 1323 printf("%s: xfer == NULL\n", __func__); 1324 return; 1325 } 1326 fw_xfer_unload(xfer); 1327 free(xfer, xfer->malloc); 1328 } 1329 1330 void 1331 fw_asy_callback_free(struct fw_xfer *xfer) 1332 { 1333 #if 0 1334 printf("asyreq done flag=%d resp=%d\n", 1335 xfer->flag, xfer->resp); 1336 #endif 1337 fw_xfer_free(xfer); 1338 } 1339 1340 /* 1341 * To configure PHY. 1342 */ 1343 static void 1344 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1345 { 1346 struct fw_xfer *xfer; 1347 struct fw_pkt *fp; 1348 1349 fc->status = FWBUSPHYCONF; 1350 1351 xfer = fw_xfer_alloc(M_FWXFER); 1352 if (xfer == NULL) 1353 return; 1354 xfer->fc = fc; 1355 xfer->hand = fw_asy_callback_free; 1356 1357 fp = &xfer->send.hdr; 1358 fp->mode.ld[1] = 0; 1359 if (root_node >= 0) 1360 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1361 if (gap_count >= 0) 1362 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1363 fp->mode.ld[2] = ~fp->mode.ld[1]; 1364 /* XXX Dangerous, how to pass PHY packet to device driver */ 1365 fp->mode.common.tcode |= FWTCODE_PHY; 1366 1367 if (firewire_debug) 1368 printf("send phy_config root_node=%d gap_count=%d\n", 1369 root_node, gap_count); 1370 fw_asyreq(fc, -1, xfer); 1371 } 1372 1373 #if 0 1374 /* 1375 * Dump self ID. 1376 */ 1377 static void 1378 fw_print_sid(uint32_t sid) 1379 { 1380 union fw_self_id *s; 1381 s = (union fw_self_id *) &sid; 1382 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1383 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1384 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1385 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1386 s->p0.power_class, s->p0.port0, s->p0.port1, 1387 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1388 } 1389 #endif 1390 1391 /* 1392 * To receive self ID. 1393 */ 1394 void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1395 { 1396 uint32_t *p; 1397 union fw_self_id *self_id; 1398 u_int i, j, node, c_port = 0, i_branch = 0; 1399 1400 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1401 fc->max_node = fc->nodeid & 0x3f; 1402 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1403 fc->status = FWBUSCYMELECT; 1404 fc->topology_map->crc_len = 2; 1405 fc->topology_map->generation ++; 1406 fc->topology_map->self_id_count = 0; 1407 fc->topology_map->node_count = 0; 1408 fc->speed_map->generation ++; 1409 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1410 self_id = &fc->topology_map->self_id[0]; 1411 for(i = 0; i < fc->sid_cnt; i ++){ 1412 if (sid[1] != ~sid[0]) { 1413 printf("fw_sidrcv: invalid self-id packet\n"); 1414 sid += 2; 1415 continue; 1416 } 1417 *self_id = *((union fw_self_id *)sid); 1418 fc->topology_map->crc_len++; 1419 if(self_id->p0.sequel == 0){ 1420 fc->topology_map->node_count ++; 1421 c_port = 0; 1422 #if 0 1423 fw_print_sid(sid[0]); 1424 #endif 1425 node = self_id->p0.phy_id; 1426 if(fc->max_node < node){ 1427 fc->max_node = self_id->p0.phy_id; 1428 } 1429 /* XXX I'm not sure this is the right speed_map */ 1430 fc->speed_map->speed[node][node] 1431 = self_id->p0.phy_speed; 1432 for (j = 0; j < node; j ++) { 1433 fc->speed_map->speed[j][node] 1434 = fc->speed_map->speed[node][j] 1435 = min(fc->speed_map->speed[j][j], 1436 self_id->p0.phy_speed); 1437 } 1438 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1439 (self_id->p0.link_active && self_id->p0.contender)) { 1440 fc->irm = self_id->p0.phy_id; 1441 } 1442 if(self_id->p0.port0 >= 0x2){ 1443 c_port++; 1444 } 1445 if(self_id->p0.port1 >= 0x2){ 1446 c_port++; 1447 } 1448 if(self_id->p0.port2 >= 0x2){ 1449 c_port++; 1450 } 1451 } 1452 if(c_port > 2){ 1453 i_branch += (c_port - 2); 1454 } 1455 sid += 2; 1456 self_id++; 1457 fc->topology_map->self_id_count ++; 1458 } 1459 fw_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1460 /* CRC */ 1461 fc->topology_map->crc = fw_crc16( 1462 (uint32_t *)&fc->topology_map->generation, 1463 fc->topology_map->crc_len * 4); 1464 fc->speed_map->crc = fw_crc16( 1465 (uint32_t *)&fc->speed_map->generation, 1466 fc->speed_map->crc_len * 4); 1467 /* byteswap and copy to CSR */ 1468 p = (uint32_t *)fc->topology_map; 1469 for (i = 0; i <= fc->topology_map->crc_len; i++) 1470 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1471 p = (uint32_t *)fc->speed_map; 1472 CSRARC(fc, SPED_MAP) = htonl(*p++); 1473 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1474 /* don't byte-swap uint8_t array */ 1475 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1476 1477 fc->max_hop = fc->max_node - i_branch; 1478 printf(", maxhop <= %d", fc->max_hop); 1479 1480 if(fc->irm == -1 ){ 1481 printf(", Not found IRM capable node"); 1482 }else{ 1483 printf(", cable IRM = %d", fc->irm); 1484 if (fc->irm == fc->nodeid) 1485 printf(" (me)"); 1486 } 1487 printf("\n"); 1488 1489 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1490 if (fc->irm == fc->nodeid) { 1491 fc->status = FWBUSMGRDONE; 1492 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1493 fw_bmr(fc); 1494 } else { 1495 fc->status = FWBUSMGRELECT; 1496 fw_callout_reset(&fc->bmr_callout, hz/8, 1497 (void *)fw_try_bmr, (void *)fc); 1498 } 1499 } else 1500 fc->status = FWBUSMGRDONE; 1501 1502 fw_callout_reset(&fc->busprobe_callout, hz/4, 1503 (void *)fw_bus_probe, (void *)fc); 1504 } 1505 1506 /* 1507 * To probe devices on the IEEE1394 bus. 1508 */ 1509 static void 1510 fw_bus_probe(struct firewire_comm *fc) 1511 { 1512 int s; 1513 struct fw_device *fwdev; 1514 1515 s = splfw(); 1516 fc->status = FWBUSEXPLORE; 1517 1518 /* Invalidate all devices, just after bus reset. */ 1519 STAILQ_FOREACH(fwdev, &fc->devices, link) 1520 if (fwdev->status != FWDEVINVAL) { 1521 fwdev->status = FWDEVINVAL; 1522 fwdev->rcnt = 0; 1523 } 1524 splx(s); 1525 1526 wakeup((void *)fc); 1527 } 1528 1529 static int 1530 fw_explore_read_quads(struct fw_device *fwdev, int offset, 1531 uint32_t *quad, int n) 1532 { 1533 struct fw_xfer *xfer; 1534 uint32_t tmp; 1535 int i, error; 1536 1537 1538 for (i = 0; i < n; i ++, offset += sizeof(uint32_t)) { 1539 xfer = fwmem_read_quad(fwdev, NULL, -1, 1540 0xffff, 0xf0000000 | offset, (void *)&tmp, 1541 fw_xferwake); 1542 if (xfer == NULL) 1543 return (-1); 1544 fw_xferwait(xfer); 1545 1546 if (xfer->resp == 0) 1547 quad[i] = ntohl(tmp); 1548 1549 error = xfer->resp; 1550 fw_xfer_free(xfer); 1551 if (error) 1552 return (error); 1553 } 1554 return (0); 1555 } 1556 1557 1558 static int 1559 fw_explore_csrblock(struct fw_device *fwdev, int offset, int recur) 1560 { 1561 int err, i, off; 1562 struct csrdirectory *dir; 1563 struct csrreg *reg; 1564 1565 1566 dir = (struct csrdirectory *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1567 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1568 (uint32_t *)dir, 1); 1569 if (err) 1570 return (-1); 1571 1572 offset += sizeof(uint32_t); 1573 reg = (struct csrreg *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1574 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1575 (uint32_t *)reg, dir->crc_len); 1576 if (err) 1577 return (-1); 1578 1579 /* XXX check CRC */ 1580 1581 off = CSRROMOFF + offset + sizeof(uint32_t) * (dir->crc_len - 1); 1582 if (fwdev->rommax < off) 1583 fwdev->rommax = off; 1584 1585 if (recur == 0) 1586 return (0); 1587 1588 for (i = 0; i < dir->crc_len; i ++, offset += sizeof(uint32_t)) { 1589 if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_D) 1590 recur = 1; 1591 else if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_L) 1592 recur = 0; 1593 else 1594 continue; 1595 1596 off = offset + reg[i].val * sizeof(uint32_t); 1597 if (off > CROMSIZE) { 1598 printf("%s: invalid offset %d\n", __func__, off); 1599 return(-1); 1600 } 1601 err = fw_explore_csrblock(fwdev, off, recur); 1602 if (err) 1603 return (-1); 1604 } 1605 return (0); 1606 } 1607 1608 static int 1609 fw_explore_node(struct fw_device *dfwdev) 1610 { 1611 struct firewire_comm *fc; 1612 struct fw_device *fwdev, *pfwdev, *tfwdev; 1613 uint32_t *csr; 1614 struct csrhdr *hdr; 1615 struct bus_info *binfo; 1616 int err, node, spd; 1617 1618 fc = dfwdev->fc; 1619 csr = dfwdev->csrrom; 1620 node = dfwdev->dst; 1621 1622 /* First quad */ 1623 err = fw_explore_read_quads(dfwdev, CSRROMOFF, &csr[0], 1); 1624 if (err) 1625 return (-1); 1626 hdr = (struct csrhdr *)&csr[0]; 1627 if (hdr->info_len != 4) { 1628 if (firewire_debug) 1629 printf("node%d: wrong bus info len(%d)\n", 1630 node, hdr->info_len); 1631 return (-1); 1632 } 1633 1634 /* bus info */ 1635 err = fw_explore_read_quads(dfwdev, CSRROMOFF + 0x04, &csr[1], 4); 1636 if (err) 1637 return (-1); 1638 binfo = (struct bus_info *)&csr[1]; 1639 if (binfo->bus_name != CSR_BUS_NAME_IEEE1394) { 1640 if (firewire_debug) 1641 printf("node%d: invalid bus name 0x%08x\n", 1642 node, binfo->bus_name); 1643 return (-1); 1644 } 1645 spd = fc->speed_map->speed[fc->nodeid][node]; 1646 STAILQ_FOREACH(fwdev, &fc->devices, link) 1647 if (FW_EUI64_EQUAL(fwdev->eui, binfo->eui64)) 1648 break; 1649 if (fwdev == NULL) { 1650 /* new device */ 1651 fwdev = malloc(sizeof(struct fw_device), M_FW, 1652 M_NOWAIT | M_ZERO); 1653 if (fwdev == NULL) { 1654 if (firewire_debug) 1655 printf("node%d: no memory\n", node); 1656 return (-1); 1657 } 1658 fwdev->fc = fc; 1659 fwdev->eui = binfo->eui64; 1660 fwdev->status = FWDEVNEW; 1661 /* insert into sorted fwdev list */ 1662 pfwdev = NULL; 1663 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1664 if (tfwdev->eui.hi > fwdev->eui.hi || 1665 (tfwdev->eui.hi == fwdev->eui.hi && 1666 tfwdev->eui.lo > fwdev->eui.lo)) 1667 break; 1668 pfwdev = tfwdev; 1669 } 1670 if (pfwdev == NULL) 1671 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1672 else 1673 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1674 1675 fw_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1676 fw_linkspeed[spd], 1677 fwdev->eui.hi, fwdev->eui.lo); 1678 1679 } else 1680 fwdev->status = FWDEVINIT; 1681 fwdev->dst = node; 1682 fwdev->speed = spd; 1683 1684 /* unchanged ? */ 1685 if (bcmp(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5) == 0) { 1686 if (firewire_debug) 1687 printf("node%d: crom unchanged\n", node); 1688 return (0); 1689 } 1690 1691 bzero(&fwdev->csrrom[0], CROMSIZE); 1692 1693 /* copy first quad and bus info block */ 1694 bcopy(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5); 1695 fwdev->rommax = CSRROMOFF + sizeof(uint32_t) * 4; 1696 1697 err = fw_explore_csrblock(fwdev, 0x14, 1); /* root directory */ 1698 1699 if (err) { 1700 fwdev->status = FWDEVINVAL; 1701 fwdev->csrrom[0] = 0; 1702 } 1703 return (err); 1704 1705 } 1706 1707 /* 1708 * Find the self_id packet for a node, ignoring sequels. 1709 */ 1710 static union fw_self_id * 1711 fw_find_self_id(struct firewire_comm *fc, int node) 1712 { 1713 uint32_t i; 1714 union fw_self_id *s; 1715 1716 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1717 s = &fc->topology_map->self_id[i]; 1718 if (s->p0.sequel) 1719 continue; 1720 if (s->p0.phy_id == node) 1721 return s; 1722 } 1723 return 0; 1724 } 1725 1726 static void 1727 fw_explore(struct firewire_comm *fc) 1728 { 1729 int node, err, s, i, todo, todo2, trys; 1730 char nodes[63]; 1731 struct fw_device *dfwdev; 1732 union fw_self_id *fwsid; 1733 1734 todo = 0; 1735 dfwdev = malloc(sizeof(*dfwdev), M_TEMP, M_NOWAIT); 1736 if (dfwdev == NULL) 1737 return; 1738 /* setup dummy fwdev */ 1739 dfwdev->fc = fc; 1740 dfwdev->speed = 0; 1741 dfwdev->maxrec = 8; /* 512 */ 1742 dfwdev->status = FWDEVINIT; 1743 1744 for (node = 0; node <= fc->max_node; node ++) { 1745 /* We don't probe myself and linkdown nodes */ 1746 if (node == fc->nodeid) 1747 continue; 1748 fwsid = fw_find_self_id(fc, node); 1749 if (!fwsid || !fwsid->p0.link_active) { 1750 if (firewire_debug) 1751 printf("node%d: link down\n", node); 1752 continue; 1753 } 1754 nodes[todo++] = node; 1755 } 1756 1757 s = splfw(); 1758 for (trys = 0; todo > 0 && trys < 3; trys ++) { 1759 todo2 = 0; 1760 for (i = 0; i < todo; i ++) { 1761 dfwdev->dst = nodes[i]; 1762 err = fw_explore_node(dfwdev); 1763 if (err) 1764 nodes[todo2++] = nodes[i]; 1765 if (firewire_debug) 1766 printf("%s: node %d, err = %d\n", 1767 __func__, node, err); 1768 } 1769 todo = todo2; 1770 } 1771 splx(s); 1772 free(dfwdev, M_TEMP); 1773 } 1774 1775 static void 1776 fw_bus_probe_thread(void *arg) 1777 { 1778 struct firewire_comm *fc; 1779 1780 fc = (struct firewire_comm *)arg; 1781 1782 fw_config_pending_decr(); 1783 1784 fw_mtx_lock(&fc->wait_lock); 1785 while (fc->status != FWBUSDETACH) { 1786 if (fc->status == FWBUSEXPLORE) { 1787 fw_mtx_unlock(&fc->wait_lock); 1788 fw_explore(fc); 1789 fc->status = FWBUSEXPDONE; 1790 if (firewire_debug) 1791 printf("bus_explore done\n"); 1792 fw_attach_dev(fc); 1793 fw_mtx_lock(&fc->wait_lock); 1794 } 1795 fw_msleep((void *)fc, &fc->wait_lock, PWAIT|PCATCH, "-", 0); 1796 } 1797 fw_mtx_unlock(&fc->wait_lock); 1798 fw_kthread_exit(0); 1799 } 1800 1801 1802 /* 1803 * To attach sub-devices layer onto IEEE1394 bus. 1804 */ 1805 static void 1806 fw_attach_dev(struct firewire_comm *fc) 1807 { 1808 struct fw_device *fwdev, *next; 1809 struct firewire_dev_comm *fdc; 1810 struct fw_attach_args fwa; 1811 1812 fwa.name = "sbp"; 1813 fwa.fc = fc; 1814 1815 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1816 next = STAILQ_NEXT(fwdev, link); 1817 switch (fwdev->status) { 1818 case FWDEVNEW: 1819 FIREWIRE_SBP_ATTACH; 1820 1821 case FWDEVINIT: 1822 case FWDEVATTACHED: 1823 fwdev->status = FWDEVATTACHED; 1824 break; 1825 1826 case FWDEVINVAL: 1827 fwdev->rcnt ++; 1828 break; 1829 1830 default: 1831 /* XXX */ 1832 break; 1833 } 1834 } 1835 1836 FIREWIRE_CHILDREN_FOREACH_FUNC(post_explore, fdc); 1837 1838 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1839 next = STAILQ_NEXT(fwdev, link); 1840 if (fwdev->rcnt > 0 && fwdev->rcnt > hold_count) { 1841 /* 1842 * Remove devices which have not been seen 1843 * for a while. 1844 */ 1845 FIREWIRE_SBP_DETACH; 1846 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1847 free(fwdev, M_FW); 1848 } 1849 } 1850 1851 return; 1852 } 1853 1854 /* 1855 * To allocate unique transaction label. 1856 */ 1857 static int 1858 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1859 { 1860 u_int dst, new_tlabel; 1861 struct fw_xfer *txfer; 1862 int s; 1863 1864 dst = xfer->send.hdr.mode.hdr.dst & 0x3f; 1865 s = splfw(); 1866 fw_mtx_lock(&fc->tlabel_lock); 1867 new_tlabel = (fc->last_tlabel[dst] + 1) & 0x3f; 1868 STAILQ_FOREACH(txfer, &fc->tlabels[new_tlabel], tlabel) 1869 if ((txfer->send.hdr.mode.hdr.dst & 0x3f) == dst) 1870 break; 1871 if(txfer == NULL) { 1872 fc->last_tlabel[dst] = new_tlabel; 1873 STAILQ_INSERT_TAIL(&fc->tlabels[new_tlabel], xfer, tlabel); 1874 fw_mtx_unlock(&fc->tlabel_lock); 1875 splx(s); 1876 xfer->tl = new_tlabel; 1877 xfer->send.hdr.mode.hdr.tlrt = new_tlabel << 2; 1878 if (firewire_debug > 1) 1879 printf("fw_get_tlabel: dst=%d tl=%d\n", dst, new_tlabel); 1880 return (new_tlabel); 1881 } 1882 fw_mtx_unlock(&fc->tlabel_lock); 1883 splx(s); 1884 1885 if (firewire_debug > 1) 1886 printf("fw_get_tlabel: no free tlabel\n"); 1887 return (-1); 1888 } 1889 1890 static void 1891 fw_rcv_copy(struct fw_rcv_buf *rb) 1892 { 1893 struct fw_pkt *pkt; 1894 u_char *p; 1895 const struct tcode_info *tinfo; 1896 u_int res, i, len, plen; 1897 1898 rb->xfer->recv.spd = rb->spd; 1899 1900 pkt = (struct fw_pkt *)rb->vec->iov_base; 1901 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1902 1903 /* Copy header */ 1904 p = (u_char *)&rb->xfer->recv.hdr; 1905 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1906 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1907 rb->vec->iov_len -= tinfo->hdr_len; 1908 1909 /* Copy payload */ 1910 p = (u_char *)rb->xfer->recv.payload; 1911 res = rb->xfer->recv.pay_len; 1912 1913 /* special handling for RRESQ */ 1914 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1915 p != NULL && res >= sizeof(uint32_t)) { 1916 *(uint32_t *)p = pkt->mode.rresq.data; 1917 rb->xfer->recv.pay_len = sizeof(uint32_t); 1918 return; 1919 } 1920 1921 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1922 return; 1923 1924 plen = pkt->mode.rresb.len; 1925 1926 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1927 len = MIN(rb->vec->iov_len, plen); 1928 if (res < len) { 1929 printf("rcv buffer(%d) is %d bytes short.\n", 1930 rb->xfer->recv.pay_len, len - res); 1931 len = res; 1932 } 1933 if (p) { 1934 bcopy(rb->vec->iov_base, p, len); 1935 p += len; 1936 } 1937 res -= len; 1938 plen -= len; 1939 if (res == 0 || plen == 0) 1940 break; 1941 } 1942 rb->xfer->recv.pay_len -= res; 1943 1944 } 1945 1946 /* 1947 * Generic packet receiving process. 1948 */ 1949 void 1950 fw_rcv(struct fw_rcv_buf *rb) 1951 { 1952 struct fw_pkt *fp, *resfp; 1953 struct fw_bind *bind; 1954 int tcode; 1955 int i, len, oldstate; 1956 #if 0 1957 { 1958 uint32_t *qld; 1959 int i; 1960 qld = (uint32_t *)buf; 1961 printf("spd %d len:%d\n", spd, len); 1962 for( i = 0 ; i <= len && i < 32; i+= 4){ 1963 printf("0x%08x ", ntohl(qld[i/4])); 1964 if((i % 16) == 15) printf("\n"); 1965 } 1966 if((i % 16) != 15) printf("\n"); 1967 } 1968 #endif 1969 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1970 tcode = fp->mode.common.tcode; 1971 switch (tcode) { 1972 case FWTCODE_WRES: 1973 case FWTCODE_RRESQ: 1974 case FWTCODE_RRESB: 1975 case FWTCODE_LRES: 1976 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1977 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tcode); 1978 if(rb->xfer == NULL) { 1979 printf("fw_rcv: unknown response " 1980 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1981 tcode_str[tcode], tcode, 1982 fp->mode.hdr.src, 1983 fp->mode.hdr.tlrt >> 2, 1984 fp->mode.hdr.tlrt & 3, 1985 fp->mode.rresq.data); 1986 #if 0 1987 printf("try ad-hoc work around!!\n"); 1988 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1989 (fp->mode.hdr.tlrt >> 2)^3); 1990 if (rb->xfer == NULL) { 1991 printf("no use...\n"); 1992 return; 1993 } 1994 #else 1995 return; 1996 #endif 1997 } 1998 fw_rcv_copy(rb); 1999 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 2000 rb->xfer->resp = EIO; 2001 else 2002 rb->xfer->resp = 0; 2003 /* make sure the packet is drained in AT queue */ 2004 oldstate = rb->xfer->flag; 2005 rb->xfer->flag = FWXF_RCVD; 2006 switch (oldstate) { 2007 case FWXF_SENT: 2008 fw_xfer_done(rb->xfer); 2009 break; 2010 case FWXF_START: 2011 #if 0 2012 if (firewire_debug) 2013 printf("not sent yet tl=%x\n", rb->xfer->tl); 2014 #endif 2015 break; 2016 default: 2017 printf("unexpected flag 0x%02x\n", rb->xfer->flag); 2018 } 2019 return; 2020 case FWTCODE_WREQQ: 2021 case FWTCODE_WREQB: 2022 case FWTCODE_RREQQ: 2023 case FWTCODE_RREQB: 2024 case FWTCODE_LREQ: 2025 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 2026 fp->mode.rreqq.dest_lo); 2027 if(bind == NULL){ 2028 #if 1 2029 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 2030 #if defined(__DragonFly__) || \ 2031 (defined(__FreeBSD__) && __FreeBSD_version < 500000) 2032 " src=0x%x data=%lx\n", 2033 #else 2034 " src=0x%x data=%x\n", 2035 #endif 2036 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 2037 tcode_str[tcode], tcode, 2038 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 2039 #endif 2040 if (rb->fc->status == FWBUSINIT) { 2041 printf("fw_rcv: cannot respond(bus reset)!\n"); 2042 return; 2043 } 2044 rb->xfer = fw_xfer_alloc(M_FWXFER); 2045 if(rb->xfer == NULL){ 2046 return; 2047 } 2048 rb->xfer->send.spd = rb->spd; 2049 rb->xfer->send.pay_len = 0; 2050 resfp = &rb->xfer->send.hdr; 2051 switch (tcode) { 2052 case FWTCODE_WREQQ: 2053 case FWTCODE_WREQB: 2054 resfp->mode.hdr.tcode = FWTCODE_WRES; 2055 break; 2056 case FWTCODE_RREQQ: 2057 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 2058 break; 2059 case FWTCODE_RREQB: 2060 resfp->mode.hdr.tcode = FWTCODE_RRESB; 2061 break; 2062 case FWTCODE_LREQ: 2063 resfp->mode.hdr.tcode = FWTCODE_LRES; 2064 break; 2065 } 2066 resfp->mode.hdr.dst = fp->mode.hdr.src; 2067 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 2068 resfp->mode.hdr.pri = fp->mode.hdr.pri; 2069 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 2070 resfp->mode.rresb.extcode = 0; 2071 resfp->mode.rresb.len = 0; 2072 /* 2073 rb->xfer->hand = fw_xferwake; 2074 */ 2075 rb->xfer->hand = fw_xfer_free; 2076 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 2077 fw_xfer_free(rb->xfer); 2078 return; 2079 } 2080 return; 2081 } 2082 len = 0; 2083 for (i = 0; i < rb->nvec; i ++) 2084 len += rb->vec[i].iov_len; 2085 rb->xfer = STAILQ_FIRST(&bind->xferlist); 2086 if (rb->xfer == NULL) { 2087 #if 1 2088 printf("Discard a packet for this bind.\n"); 2089 #endif 2090 return; 2091 } 2092 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 2093 fw_rcv_copy(rb); 2094 rb->xfer->hand(rb->xfer); 2095 return; 2096 #if 0 /* shouldn't happen ?? or for GASP */ 2097 case FWTCODE_STREAM: 2098 { 2099 struct fw_xferq *xferq; 2100 2101 xferq = rb->fc->ir[sub]; 2102 #if 0 2103 printf("stream rcv dma %d len %d off %d spd %d\n", 2104 sub, len, off, spd); 2105 #endif 2106 if(xferq->queued >= xferq->maxq) { 2107 printf("receive queue is full\n"); 2108 return; 2109 } 2110 /* XXX get xfer from xfer queue, we don't need copy for 2111 per packet mode */ 2112 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 2113 vec[0].iov_len); 2114 if (rb->xfer == NULL) 2115 return; 2116 fw_rcv_copy(rb) 2117 s = splfw(); 2118 xferq->queued++; 2119 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 2120 splx(s); 2121 sc = device_get_softc(rb->fc->bdev); 2122 #if defined(__DragonFly__) || \ 2123 (defined(__FreeBSD__) && __FreeBSD_version < 500000) 2124 if (&xferq->rsel.si_pid != 0) 2125 #else 2126 if (SEL_WAITING(&xferq->rsel)) 2127 #endif 2128 selwakeuppri(&xferq->rsel, FWPRI); 2129 if (xferq->flag & FWXFERQ_WAKEUP) { 2130 xferq->flag &= ~FWXFERQ_WAKEUP; 2131 wakeup((void *)xferq); 2132 } 2133 if (xferq->flag & FWXFERQ_HANDLER) { 2134 xferq->hand(xferq); 2135 } 2136 return; 2137 break; 2138 } 2139 #endif 2140 default: 2141 printf("fw_rcv: unknow tcode %d\n", tcode); 2142 break; 2143 } 2144 } 2145 2146 /* 2147 * Post process for Bus Manager election process. 2148 */ 2149 static void 2150 fw_try_bmr_callback(struct fw_xfer *xfer) 2151 { 2152 struct firewire_comm *fc; 2153 int bmr; 2154 2155 if (xfer == NULL) 2156 return; 2157 fc = xfer->fc; 2158 if (xfer->resp != 0) 2159 goto error; 2160 if (xfer->recv.payload == NULL) 2161 goto error; 2162 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2163 goto error; 2164 2165 bmr = ntohl(xfer->recv.payload[0]); 2166 if (bmr == 0x3f) 2167 bmr = fc->nodeid; 2168 2169 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2170 fw_xfer_free_buf(xfer); 2171 fw_bmr(fc); 2172 return; 2173 2174 error: 2175 fw_printf(fc->bdev, "bus manager election failed\n"); 2176 fw_xfer_free_buf(xfer); 2177 } 2178 2179 2180 /* 2181 * To candidate Bus Manager election process. 2182 */ 2183 static void 2184 fw_try_bmr(void *arg) 2185 { 2186 struct fw_xfer *xfer; 2187 struct firewire_comm *fc = (struct firewire_comm *)arg; 2188 struct fw_pkt *fp; 2189 int err = 0; 2190 2191 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2192 if(xfer == NULL){ 2193 return; 2194 } 2195 xfer->send.spd = 0; 2196 fc->status = FWBUSMGRELECT; 2197 2198 fp = &xfer->send.hdr; 2199 fp->mode.lreq.dest_hi = 0xffff; 2200 fp->mode.lreq.tlrt = 0; 2201 fp->mode.lreq.tcode = FWTCODE_LREQ; 2202 fp->mode.lreq.pri = 0; 2203 fp->mode.lreq.src = 0; 2204 fp->mode.lreq.len = 8; 2205 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2206 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2207 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2208 xfer->send.payload[0] = htonl(0x3f); 2209 xfer->send.payload[1] = htonl(fc->nodeid); 2210 xfer->hand = fw_try_bmr_callback; 2211 2212 err = fw_asyreq(fc, -1, xfer); 2213 if(err){ 2214 fw_xfer_free_buf(xfer); 2215 return; 2216 } 2217 return; 2218 } 2219 2220 #ifdef FW_VMACCESS 2221 /* 2222 * Software implementation for physical memory block access. 2223 * XXX:Too slow, usef for debug purpose only. 2224 */ 2225 static void 2226 fw_vmaccess(struct fw_xfer *xfer){ 2227 struct fw_pkt *rfp, *sfp = NULL; 2228 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2229 2230 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2231 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2232 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2233 if(xfer->resp != 0){ 2234 fw_xfer_free( xfer); 2235 return; 2236 } 2237 if(xfer->recv.buf == NULL){ 2238 fw_xfer_free( xfer); 2239 return; 2240 } 2241 rfp = (struct fw_pkt *)xfer->recv.buf; 2242 switch(rfp->mode.hdr.tcode){ 2243 /* XXX need fix for 64bit arch */ 2244 case FWTCODE_WREQB: 2245 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2246 xfer->send.len = 12; 2247 sfp = (struct fw_pkt *)xfer->send.buf; 2248 bcopy(rfp->mode.wreqb.payload, 2249 (void *)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2250 sfp->mode.wres.tcode = FWTCODE_WRES; 2251 sfp->mode.wres.rtcode = 0; 2252 break; 2253 case FWTCODE_WREQQ: 2254 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2255 xfer->send.len = 12; 2256 sfp->mode.wres.tcode = FWTCODE_WRES; 2257 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2258 sfp->mode.wres.rtcode = 0; 2259 break; 2260 case FWTCODE_RREQB: 2261 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2262 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2263 sfp = (struct fw_pkt *)xfer->send.buf; 2264 bcopy((void *)ntohl(rfp->mode.rreqb.dest_lo), 2265 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2266 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2267 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2268 sfp->mode.rresb.rtcode = 0; 2269 sfp->mode.rresb.extcode = 0; 2270 break; 2271 case FWTCODE_RREQQ: 2272 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2273 xfer->send.len = 16; 2274 sfp = (struct fw_pkt *)xfer->send.buf; 2275 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2276 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2277 sfp->mode.rresb.rtcode = 0; 2278 break; 2279 default: 2280 fw_xfer_free( xfer); 2281 return; 2282 } 2283 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2284 xfer->dst = ntohs(rfp->mode.hdr.src); 2285 xfer->hand = fw_xfer_free; 2286 2287 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2288 sfp->mode.hdr.pri = 0; 2289 2290 fw_asyreq(xfer->fc, -1, xfer); 2291 /**/ 2292 return; 2293 } 2294 #endif 2295 2296 /* 2297 * CRC16 check-sum for IEEE1394 register blocks. 2298 */ 2299 uint16_t 2300 fw_crc16(uint32_t *ptr, uint32_t len){ 2301 uint32_t i, sum, crc = 0; 2302 int shift; 2303 len = (len + 3) & ~3; 2304 for(i = 0 ; i < len ; i+= 4){ 2305 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2306 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2307 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2308 } 2309 crc &= 0xffff; 2310 } 2311 return((uint16_t) crc); 2312 } 2313 2314 static int 2315 fw_bmr(struct firewire_comm *fc) 2316 { 2317 struct fw_device fwdev; 2318 union fw_self_id *self_id; 2319 int cmstr; 2320 uint32_t quad; 2321 2322 /* Check to see if the current root node is cycle master capable */ 2323 self_id = fw_find_self_id(fc, fc->max_node); 2324 if (fc->max_node > 0) { 2325 /* XXX check cmc bit of businfo block rather than contender */ 2326 if (self_id->p0.link_active && self_id->p0.contender) 2327 cmstr = fc->max_node; 2328 else { 2329 fw_printf(fc->bdev, 2330 "root node is not cycle master capable\n"); 2331 /* XXX shall we be the cycle master? */ 2332 cmstr = fc->nodeid; 2333 /* XXX need bus reset */ 2334 } 2335 } else 2336 cmstr = -1; 2337 2338 fw_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2339 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2340 /* We are not the bus manager */ 2341 printf("\n"); 2342 return(0); 2343 } 2344 printf("(me)\n"); 2345 2346 /* Optimize gapcount */ 2347 if(fc->max_hop <= MAX_GAPHOP ) 2348 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2349 /* If we are the cycle master, nothing to do */ 2350 if (cmstr == fc->nodeid || cmstr == -1) 2351 return 0; 2352 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2353 bzero(&fwdev, sizeof(fwdev)); 2354 fwdev.fc = fc; 2355 fwdev.dst = cmstr; 2356 fwdev.speed = 0; 2357 fwdev.maxrec = 8; /* 512 */ 2358 fwdev.status = FWDEVINIT; 2359 /* Set cmstr bit on the cycle master */ 2360 quad = htonl(1 << 8); 2361 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2362 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2363 2364 return 0; 2365 } 2366 2367 int 2368 fw_open_isodma(struct firewire_comm *fc, int tx) 2369 { 2370 struct fw_xferq **xferqa; 2371 struct fw_xferq *xferq; 2372 int i; 2373 2374 if (tx) 2375 xferqa = &fc->it[0]; 2376 else 2377 xferqa = &fc->ir[0]; 2378 2379 FW_GLOCK(fc); 2380 for (i = 0; i < fc->nisodma; i ++) { 2381 xferq = xferqa[i]; 2382 if ((xferq->flag & FWXFERQ_OPEN) == 0) { 2383 xferq->flag |= FWXFERQ_OPEN; 2384 break; 2385 } 2386 } 2387 if (i == fc->nisodma) { 2388 printf("no free dma channel (tx=%d)\n", tx); 2389 i = -1; 2390 } 2391 FW_GUNLOCK(fc); 2392 return (i); 2393 } 2394 2395 #if defined(__FreeBSD__) 2396 static int 2397 fw_modevent(module_t mode, int type, void *data) 2398 { 2399 int err = 0; 2400 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2401 static eventhandler_tag fwdev_ehtag = NULL; 2402 #endif 2403 2404 switch (type) { 2405 case MOD_LOAD: 2406 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2407 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2408 fwdev_clone, 0, 1000); 2409 #endif 2410 break; 2411 case MOD_UNLOAD: 2412 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2413 if (fwdev_ehtag != NULL) 2414 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2415 #endif 2416 break; 2417 case MOD_SHUTDOWN: 2418 break; 2419 default: 2420 return (EOPNOTSUPP); 2421 } 2422 return (err); 2423 } 2424 2425 2426 #ifdef __DragonFly__ 2427 DECLARE_DUMMY_MODULE(firewire); 2428 #endif 2429 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2430 MODULE_VERSION(firewire, 1); 2431 #endif 2432