firewire.c revision 1.8
1 /* $NetBSD: firewire.c,v 1.8 2006/06/13 02:39:11 christos 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: /repoman/r/ncvs/src/sys/dev/firewire/firewire.c,v 1.80 2005/01/06 01:42:41 imp 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 #if defined(__DragonFly__) || __FreeBSD_version < 500000 52 #include <machine/clock.h> /* for DELAY() */ 53 #endif 54 55 #include <sys/bus.h> /* used by smbus and newbus */ 56 #include <machine/bus.h> 57 58 #ifdef __DragonFly__ 59 #include "fw_port.h" 60 #include "firewire.h" 61 #include "firewirereg.h" 62 #include "fwmem.h" 63 #include "iec13213.h" 64 #include "iec68113.h" 65 #else 66 #include <dev/firewire/fw_port.h> 67 #include <dev/firewire/firewire.h> 68 #include <dev/firewire/firewirereg.h> 69 #include <dev/firewire/fwmem.h> 70 #include <dev/firewire/iec13213.h> 71 #include <dev/firewire/iec68113.h> 72 #endif 73 #elif defined(__NetBSD__) 74 #include <sys/param.h> 75 #include <sys/device.h> 76 #include <sys/errno.h> 77 #include <sys/conf.h> 78 #include <sys/kernel.h> 79 #include <sys/kthread.h> 80 #include <sys/malloc.h> 81 #include <sys/queue.h> 82 #include <sys/sysctl.h> 83 #include <sys/systm.h> 84 85 #include <machine/bus.h> 86 87 #include <dev/ieee1394/fw_port.h> 88 #include <dev/ieee1394/firewire.h> 89 #include <dev/ieee1394/firewirereg.h> 90 #include <dev/ieee1394/fwmem.h> 91 #include <dev/ieee1394/iec13213.h> 92 #include <dev/ieee1394/iec68113.h> 93 94 #include "locators.h" 95 #endif 96 97 struct crom_src_buf { 98 struct crom_src src; 99 struct crom_chunk root; 100 struct crom_chunk vendor; 101 struct crom_chunk hw; 102 }; 103 104 int firewire_debug=0, try_bmr=1, hold_count=3; 105 #if defined(__FreeBSD__) 106 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 107 "FireWire driver debug flag"); 108 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 109 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 110 "Try to be a bus manager"); 111 SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0, 112 "Number of count of bus resets for removing lost device information"); 113 114 MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 115 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 116 #elif defined(__NetBSD__) 117 /* 118 * Setup sysctl(3) MIB, hw.ieee1394if.* 119 * 120 * TBD condition CTLFLAG_PERMANENT on being an LKM or not 121 */ 122 SYSCTL_SETUP(sysctl_ieee1394if, "sysctl ieee1394if(4) subtree setup") 123 { 124 int rc, ieee1394if_node_num; 125 const struct sysctlnode *node; 126 127 if ((rc = sysctl_createv(clog, 0, NULL, NULL, 128 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 129 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) { 130 goto err; 131 } 132 133 if ((rc = sysctl_createv(clog, 0, NULL, &node, 134 CTLFLAG_PERMANENT, CTLTYPE_NODE, "ieee1394if", 135 SYSCTL_DESCR("ieee1394if controls"), 136 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) { 137 goto err; 138 } 139 ieee1394if_node_num = node->sysctl_num; 140 141 /* ieee1394if try bus manager flag */ 142 if ((rc = sysctl_createv(clog, 0, NULL, &node, 143 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 144 "try_bmr", SYSCTL_DESCR("Try to be a bus manager"), 145 NULL, 0, &try_bmr, 146 0, CTL_HW, ieee1394if_node_num, CTL_CREATE, CTL_EOL)) != 0) { 147 goto err; 148 } 149 150 /* ieee1394if hold count */ 151 if ((rc = sysctl_createv(clog, 0, NULL, &node, 152 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 153 "hold_count", SYSCTL_DESCR("Number of count of " 154 "bus resets for removing lost device information"), 155 NULL, 0, &hold_count, 156 0, CTL_HW, ieee1394if_node_num, CTL_CREATE, CTL_EOL)) != 0) { 157 goto err; 158 } 159 160 /* ieee1394if driver debug flag */ 161 if ((rc = sysctl_createv(clog, 0, NULL, &node, 162 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 163 "ieee1394_debug", SYSCTL_DESCR("ieee1394if driver debug flag"), 164 NULL, 0, &firewire_debug, 165 0, CTL_HW, ieee1394if_node_num, CTL_CREATE, CTL_EOL)) != 0) { 166 goto err; 167 } 168 169 return; 170 171 err: 172 printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 173 } 174 175 MALLOC_DEFINE(M_FW, "ieee1394", "IEEE1394"); 176 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/IEEE1394"); 177 #endif 178 179 #define FW_MAXASYRTY 4 180 181 #if defined(__FreeBSD__) 182 devclass_t firewire_devclass; 183 184 static void firewire_identify (driver_t *, device_t); 185 static int firewire_probe (device_t); 186 static int firewire_attach (device_t); 187 static int firewire_detach (device_t); 188 static int firewire_resume (device_t); 189 #if 0 190 static int firewire_shutdown (device_t); 191 #endif 192 static device_t firewire_add_child (device_t, int, const char *, int); 193 #elif defined(__NetBSD__) 194 int firewirematch (struct device *, struct cfdata *, void *); 195 void firewireattach (struct device *, struct device *, void *); 196 int firewiredetach (struct device *, int); 197 int firewire_print (void *, const char *); 198 #endif 199 static void fw_try_bmr (void *); 200 static void fw_try_bmr_callback (struct fw_xfer *); 201 static void fw_asystart (struct fw_xfer *); 202 static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *); 203 static void fw_bus_probe (struct firewire_comm *); 204 static void fw_kthread_create0 (void *); 205 static void fw_attach_dev (struct firewire_comm *); 206 static void fw_bus_probe_thread(void *); 207 #ifdef FW_VMACCESS 208 static void fw_vmaccess (struct fw_xfer *); 209 #endif 210 static int fw_bmr (struct firewire_comm *); 211 212 #if defined(__FreeBSD__) 213 static device_method_t firewire_methods[] = { 214 /* Device interface */ 215 DEVMETHOD(device_identify, firewire_identify), 216 DEVMETHOD(device_probe, firewire_probe), 217 DEVMETHOD(device_attach, firewire_attach), 218 DEVMETHOD(device_detach, firewire_detach), 219 DEVMETHOD(device_suspend, bus_generic_suspend), 220 DEVMETHOD(device_resume, firewire_resume), 221 DEVMETHOD(device_shutdown, bus_generic_shutdown), 222 223 /* Bus interface */ 224 DEVMETHOD(bus_add_child, firewire_add_child), 225 DEVMETHOD(bus_print_child, bus_generic_print_child), 226 227 { 0, 0 } 228 }; 229 #elif defined(__NetBSD__) 230 CFATTACH_DECL(ieee1394if, sizeof (struct firewire_softc), 231 firewirematch, firewireattach, firewiredetach, NULL); 232 #endif 233 const char *fw_linkspeed[] = { 234 "S100", "S200", "S400", "S800", 235 "S1600", "S3200", "undef", "undef" 236 }; 237 238 static const char *tcode_str[] = { 239 "WREQQ", "WREQB", "WRES", "undef", 240 "RREQQ", "RREQB", "RRESQ", "RRESB", 241 "CYCS", "LREQ", "STREAM", "LRES", 242 "undef", "undef", "PHY", "undef" 243 }; 244 245 /* IEEE-1394a Table C-2 Gap count as a function of hops*/ 246 #define MAX_GAPHOP 15 247 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 248 21, 24, 26, 29, 32, 35, 37, 40}; 249 250 #if defined(__FreeBSD__) 251 static driver_t firewire_driver = { 252 "firewire", 253 firewire_methods, 254 sizeof(struct firewire_softc), 255 }; 256 #endif 257 258 /* 259 * Lookup fwdev by node id. 260 */ 261 struct fw_device * 262 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 263 { 264 struct fw_device *fwdev; 265 int s; 266 267 s = splfw(); 268 STAILQ_FOREACH(fwdev, &fc->devices, link) 269 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 270 break; 271 splx(s); 272 273 return fwdev; 274 } 275 276 /* 277 * Lookup fwdev by EUI64. 278 */ 279 struct fw_device * 280 fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 281 { 282 struct fw_device *fwdev; 283 int s; 284 285 s = splfw(); 286 STAILQ_FOREACH(fwdev, &fc->devices, link) 287 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 288 break; 289 splx(s); 290 291 if(fwdev == NULL) return NULL; 292 if(fwdev->status == FWDEVINVAL) return NULL; 293 return fwdev; 294 } 295 296 /* 297 * Async. request procedure for userland application. 298 */ 299 int 300 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 301 { 302 int err = 0; 303 struct fw_xferq *xferq; 304 int tl = -1, len; 305 struct fw_pkt *fp; 306 int tcode; 307 const struct tcode_info *info; 308 309 if(xfer == NULL) return EINVAL; 310 if(xfer->hand == NULL){ 311 printf("hand == NULL\n"); 312 return EINVAL; 313 } 314 fp = &xfer->send.hdr; 315 316 tcode = fp->mode.common.tcode & 0xf; 317 info = &fc->tcode[tcode]; 318 if (info->flag == 0) { 319 printf("invalid tcode=%x\n", tcode); 320 return EINVAL; 321 } 322 if (info->flag & FWTI_REQ) 323 xferq = fc->atq; 324 else 325 xferq = fc->ats; 326 len = info->hdr_len; 327 if (xfer->send.pay_len > MAXREC(fc->maxrec)) { 328 printf("send.pay_len > maxrec\n"); 329 return EINVAL; 330 } 331 if (info->flag & FWTI_BLOCK_STR) 332 len = fp->mode.stream.len; 333 else if (info->flag & FWTI_BLOCK_ASY) 334 len = fp->mode.rresb.len; 335 else 336 len = 0; 337 if (len != xfer->send.pay_len){ 338 printf("len(%d) != send.pay_len(%d) %s(%x)\n", 339 len, xfer->send.pay_len, tcode_str[tcode], tcode); 340 return EINVAL; 341 } 342 343 if(xferq->start == NULL){ 344 printf("xferq->start == NULL\n"); 345 return EINVAL; 346 } 347 if(!(xferq->queued < xferq->maxq)){ 348 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 349 xferq->queued); 350 return EINVAL; 351 } 352 353 if (info->flag & FWTI_TLABEL) { 354 if ((tl = fw_get_tlabel(fc, xfer)) == -1) 355 return EAGAIN; 356 fp->mode.hdr.tlrt = tl << 2; 357 } 358 359 xfer->tl = tl; 360 xfer->resp = 0; 361 xfer->fc = fc; 362 xfer->q = xferq; 363 364 fw_asystart(xfer); 365 return err; 366 } 367 /* 368 * Wakeup blocked process. 369 */ 370 void 371 fw_asy_callback(struct fw_xfer *xfer){ 372 wakeup(xfer); 373 return; 374 } 375 376 /* 377 * Async. request with given xfer structure. 378 */ 379 static void 380 fw_asystart(struct fw_xfer *xfer) 381 { 382 struct firewire_comm *fc = xfer->fc; 383 int s; 384 #if 0 /* XXX allow bus explore packets only after bus rest */ 385 if (fc->status < FWBUSEXPLORE) { 386 xfer->resp = EAGAIN; 387 xfer->state = FWXF_BUSY; 388 if (xfer->hand != NULL) 389 xfer->hand(xfer); 390 return; 391 } 392 #endif 393 microtime(&xfer->tv); 394 s = splfw(); 395 xfer->state = FWXF_INQ; 396 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 397 xfer->q->queued ++; 398 splx(s); 399 /* XXX just queue for mbuf */ 400 if (xfer->mbuf == NULL) 401 xfer->q->start(fc); 402 return; 403 } 404 405 #if defined(__FreeBSD__) 406 static void 407 firewire_identify(driver_t *driver, device_t parent) 408 { 409 BUS_ADD_CHILD(parent, 0, "firewire", -1); 410 } 411 412 static int 413 firewire_probe(device_t dev) 414 { 415 device_set_desc(dev, "IEEE1394(FireWire) bus"); 416 return (0); 417 } 418 #elif defined(__NetBSD__) 419 int 420 firewirematch(struct device *parent, struct cfdata *cf, void *aux) 421 { 422 struct fwbus_attach_args *faa = (struct fwbus_attach_args *)aux; 423 424 if (strcmp(faa->name, "ieee1394if") == 0) 425 return (1); 426 return (0); 427 } 428 #endif 429 430 static void 431 firewire_xfer_timeout(struct firewire_comm *fc) 432 { 433 struct fw_xfer *xfer; 434 struct timeval tv; 435 struct timeval split_timeout; 436 int i, s; 437 438 split_timeout.tv_sec = 0; 439 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 440 441 microtime(&tv); 442 timevalsub(&tv, &split_timeout); 443 444 s = splfw(); 445 for (i = 0; i < 0x40; i ++) { 446 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 447 if (timevalcmp(&xfer->tv, &tv, >)) 448 /* the rests are newer than this */ 449 break; 450 if (xfer->state == FWXF_START) 451 /* not sent yet */ 452 break; 453 device_printf(fc->bdev, 454 "split transaction timeout dst=0x%x tl=0x%x state=%d\n", 455 xfer->send.hdr.mode.hdr.dst, i, xfer->state); 456 xfer->resp = ETIMEDOUT; 457 fw_xfer_done(xfer); 458 } 459 } 460 splx(s); 461 } 462 463 #define WATCHDOC_HZ 10 464 static void 465 firewire_watchdog(void *arg) 466 { 467 struct firewire_comm *fc; 468 static int watchdoc_clock = 0; 469 470 fc = (struct firewire_comm *)arg; 471 472 /* 473 * At boot stage, the device interrupt is disabled and 474 * We encounter a timeout easily. To avoid this, 475 * ignore clock interrupt for a while. 476 */ 477 if (watchdoc_clock > WATCHDOC_HZ * 15) { 478 firewire_xfer_timeout(fc); 479 fc->timeout(fc); 480 } else 481 watchdoc_clock ++; 482 483 callout_reset(&fc->timeout_callout, hz / WATCHDOC_HZ, 484 (void *)firewire_watchdog, (void *)fc); 485 } 486 487 /* 488 * The attach routine. 489 */ 490 FW_ATTACH(firewire) 491 { 492 FW_ATTACH_START(firewire, sc, fwa); 493 FIREWIRE_ATTACH_START; 494 495 sc->fc = fc; 496 fc->status = FWBUSNOTREADY; 497 498 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 499 500 FWDEV_MAKEDEV(sc); 501 502 CALLOUT_INIT(&sc->fc->timeout_callout); 503 CALLOUT_INIT(&sc->fc->bmr_callout); 504 CALLOUT_INIT(&sc->fc->busprobe_callout); 505 506 callout_reset(&sc->fc->timeout_callout, hz, 507 (void *)firewire_watchdog, (void *)sc->fc); 508 509 fw_kthread_create(fw_kthread_create0, fc); 510 511 FIREWIRE_GENERIC_ATTACH; 512 513 /* bus_reset */ 514 fw_busreset(fc); 515 fc->ibr(fc); 516 517 FW_ATTACH_RETURN(0); 518 } 519 520 #if defined(__FreeBSD__) 521 /* 522 * Attach it as child. 523 */ 524 static device_t 525 firewire_add_child(device_t dev, int order, const char *name, int unit) 526 { 527 device_t child; 528 struct firewire_softc *sc; 529 struct fw_attach_args fwa; 530 531 sc = (struct firewire_softc *)device_get_softc(dev); 532 child = device_add_child(dev, name, unit); 533 if (child) { 534 fwa.name = name; 535 fwa.fc = sc->fc; 536 fwa.fwdev = NULL; 537 device_set_ivars(child, &fwa); 538 device_probe_and_attach(child); 539 } 540 541 return child; 542 } 543 544 static int 545 firewire_resume(device_t dev) 546 { 547 struct firewire_softc *sc; 548 549 sc = (struct firewire_softc *)device_get_softc(dev); 550 sc->fc->status = FWBUSNOTREADY; 551 552 bus_generic_resume(dev); 553 554 return(0); 555 } 556 #endif 557 558 /* 559 * Dettach it. 560 */ 561 FW_DETACH(firewire) 562 { 563 FW_DETACH_START(firewire, sc); 564 struct firewire_comm *fc; 565 struct fw_device *fwdev, *fwdev_next; 566 567 fc = sc->fc; 568 fc->status = FWBUSDETACH; 569 570 FWDEV_DESTROYDEV(sc); 571 FIREWIRE_GENERIC_DETACH; 572 573 callout_stop(&fc->timeout_callout); 574 callout_stop(&fc->bmr_callout); 575 callout_stop(&fc->busprobe_callout); 576 577 /* XXX xfree_free and untimeout on all xfers */ 578 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; 579 fwdev = fwdev_next) { 580 fwdev_next = STAILQ_NEXT(fwdev, link); 581 free(fwdev, M_FW); 582 } 583 free(fc->topology_map, M_FW); 584 free(fc->speed_map, M_FW); 585 free(fc->crom_src_buf, M_FW); 586 587 wakeup(fc); 588 if (tsleep(fc, PWAIT, "fwthr", hz * 60)) 589 printf("firewire task thread didn't die\n"); 590 591 return(0); 592 } 593 #if defined(__FreeBSD__) 594 #if 0 595 static int 596 firewire_shutdown( device_t dev ) 597 { 598 return 0; 599 } 600 #endif 601 #elif defined(__NetBSD__) 602 int 603 firewire_print(void *aux, const char *pnp) 604 { 605 char *name = aux; 606 607 if (pnp) 608 aprint_normal("%s at %s", name, pnp); 609 610 return UNCONF; 611 } 612 #endif 613 614 static void 615 fw_xferq_drain(struct fw_xferq *xferq) 616 { 617 struct fw_xfer *xfer; 618 619 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 620 STAILQ_REMOVE_HEAD(&xferq->q, link); 621 xferq->queued --; 622 xfer->resp = EAGAIN; 623 xfer->state = FWXF_SENTERR; 624 fw_xfer_done(xfer); 625 } 626 } 627 628 void 629 fw_drain_txq(struct firewire_comm *fc) 630 { 631 int i; 632 633 fw_xferq_drain(fc->atq); 634 fw_xferq_drain(fc->ats); 635 for(i = 0; i < fc->nisodma; i++) 636 fw_xferq_drain(fc->it[i]); 637 } 638 639 static void 640 fw_reset_csr(struct firewire_comm *fc) 641 { 642 int i; 643 644 CSRARC(fc, STATE_CLEAR) 645 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 646 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 647 CSRARC(fc, NODE_IDS) = 0x3f; 648 649 CSRARC(fc, TOPO_MAP + 8) = 0; 650 fc->irm = -1; 651 652 fc->max_node = -1; 653 654 for(i = 2; i < 0x100/4 - 2 ; i++){ 655 CSRARC(fc, SPED_MAP + i * 4) = 0; 656 } 657 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 658 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 659 CSRARC(fc, RESET_START) = 0; 660 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 661 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 662 CSRARC(fc, CYCLE_TIME) = 0x0; 663 CSRARC(fc, BUS_TIME) = 0x0; 664 CSRARC(fc, BUS_MGR_ID) = 0x3f; 665 CSRARC(fc, BANDWIDTH_AV) = 4915; 666 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 667 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 668 CSRARC(fc, IP_CHANNELS) = (1 << 31); 669 670 CSRARC(fc, CONF_ROM) = 0x04 << 24; 671 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 672 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 673 1 << 28 | 0xff << 16 | 0x09 << 8; 674 CSRARC(fc, CONF_ROM + 0xc) = 0; 675 676 /* DV depend CSRs see blue book */ 677 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 678 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 679 680 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 681 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 682 } 683 684 static void 685 fw_init_crom(struct firewire_comm *fc) 686 { 687 struct crom_src *src; 688 689 fc->crom_src_buf = (struct crom_src_buf *) 690 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 691 if (fc->crom_src_buf == NULL) 692 return; 693 694 src = &fc->crom_src_buf->src; 695 bzero(src, sizeof(struct crom_src)); 696 697 /* BUS info sample */ 698 src->hdr.info_len = 4; 699 700 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 701 702 src->businfo.irmc = 1; 703 src->businfo.cmc = 1; 704 src->businfo.isc = 1; 705 src->businfo.bmc = 1; 706 src->businfo.pmc = 0; 707 src->businfo.cyc_clk_acc = 100; 708 src->businfo.max_rec = fc->maxrec; 709 src->businfo.max_rom = MAXROM_4; 710 src->businfo.generation = 1; 711 src->businfo.link_spd = fc->speed; 712 713 src->businfo.eui64.hi = fc->eui.hi; 714 src->businfo.eui64.lo = fc->eui.lo; 715 716 STAILQ_INIT(&src->chunk_list); 717 718 fc->crom_src = src; 719 fc->crom_root = &fc->crom_src_buf->root; 720 } 721 722 static void 723 fw_reset_crom(struct firewire_comm *fc) 724 { 725 struct crom_src_buf *buf; 726 struct crom_src *src; 727 struct crom_chunk *root; 728 729 if (fc->crom_src_buf == NULL) 730 fw_init_crom(fc); 731 732 buf = fc->crom_src_buf; 733 src = fc->crom_src; 734 root = fc->crom_root; 735 736 STAILQ_INIT(&src->chunk_list); 737 738 bzero(root, sizeof(struct crom_chunk)); 739 crom_add_chunk(src, NULL, root, 0); 740 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 741 /* private company_id */ 742 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 743 crom_add_simple_text(src, root, &buf->vendor, PROJECT_STR); 744 crom_add_entry(root, CSRKEY_HW, OS_VER); 745 crom_add_simple_text(src, root, &buf->hw, hostname); 746 } 747 748 /* 749 * Called after bus reset. 750 */ 751 void 752 fw_busreset(struct firewire_comm *fc) 753 { 754 struct firewire_dev_comm *fdc; 755 struct crom_src *src; 756 void *newrom; 757 758 switch(fc->status){ 759 case FWBUSMGRELECT: 760 callout_stop(&fc->bmr_callout); 761 break; 762 default: 763 break; 764 } 765 fc->status = FWBUSRESET; 766 fw_reset_csr(fc); 767 fw_reset_crom(fc); 768 769 FIREWIRE_CHILDREN_FOREACH_FUNC(post_busreset, fdc); 770 771 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 772 src = &fc->crom_src_buf->src; 773 crom_load(src, (uint32_t *)newrom, CROMSIZE); 774 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 775 /* bump generation and reload */ 776 src->businfo.generation ++; 777 /* generation must be between 0x2 and 0xF */ 778 if (src->businfo.generation < 2) 779 src->businfo.generation ++; 780 crom_load(src, (uint32_t *)newrom, CROMSIZE); 781 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 782 } 783 free(newrom, M_FW); 784 } 785 786 /* Call once after reboot */ 787 void fw_init(struct firewire_comm *fc) 788 { 789 int i; 790 #ifdef FW_VMACCESS 791 struct fw_xfer *xfer; 792 struct fw_bind *fwb; 793 #endif 794 795 fc->arq->queued = 0; 796 fc->ars->queued = 0; 797 fc->atq->queued = 0; 798 fc->ats->queued = 0; 799 800 fc->arq->buf = NULL; 801 fc->ars->buf = NULL; 802 fc->atq->buf = NULL; 803 fc->ats->buf = NULL; 804 805 fc->arq->flag = 0; 806 fc->ars->flag = 0; 807 fc->atq->flag = 0; 808 fc->ats->flag = 0; 809 810 STAILQ_INIT(&fc->atq->q); 811 STAILQ_INIT(&fc->ats->q); 812 813 for( i = 0 ; i < fc->nisodma ; i ++ ){ 814 fc->it[i]->queued = 0; 815 fc->ir[i]->queued = 0; 816 817 fc->it[i]->start = NULL; 818 fc->ir[i]->start = NULL; 819 820 fc->it[i]->buf = NULL; 821 fc->ir[i]->buf = NULL; 822 823 fc->it[i]->flag = FWXFERQ_STREAM; 824 fc->ir[i]->flag = FWXFERQ_STREAM; 825 826 STAILQ_INIT(&fc->it[i]->q); 827 STAILQ_INIT(&fc->ir[i]->q); 828 } 829 830 fc->arq->maxq = FWMAXQUEUE; 831 fc->ars->maxq = FWMAXQUEUE; 832 fc->atq->maxq = FWMAXQUEUE; 833 fc->ats->maxq = FWMAXQUEUE; 834 835 for( i = 0 ; i < fc->nisodma ; i++){ 836 fc->ir[i]->maxq = FWMAXQUEUE; 837 fc->it[i]->maxq = FWMAXQUEUE; 838 } 839 /* Initialize csr registers */ 840 fc->topology_map = (struct fw_topology_map *)malloc( 841 sizeof(struct fw_topology_map), 842 M_FW, M_NOWAIT | M_ZERO); 843 fc->speed_map = (struct fw_speed_map *)malloc( 844 sizeof(struct fw_speed_map), 845 M_FW, M_NOWAIT | M_ZERO); 846 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 847 CSRARC(fc, TOPO_MAP + 4) = 1; 848 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 849 CSRARC(fc, SPED_MAP + 4) = 1; 850 851 STAILQ_INIT(&fc->devices); 852 853 /* Initialize Async handlers */ 854 STAILQ_INIT(&fc->binds); 855 for( i = 0 ; i < 0x40 ; i++){ 856 STAILQ_INIT(&fc->tlabels[i]); 857 } 858 859 /* DV depend CSRs see blue book */ 860 #if 0 861 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 862 CSRARC(fc, oPCR) = 0x8000007a; 863 for(i = 4 ; i < 0x7c/4 ; i+=4){ 864 CSRARC(fc, i + oPCR) = 0x8000007a; 865 } 866 867 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 868 CSRARC(fc, iPCR) = 0x803f0000; 869 for(i = 4 ; i < 0x7c/4 ; i+=4){ 870 CSRARC(fc, i + iPCR) = 0x0; 871 } 872 #endif 873 874 fc->crom_src_buf = NULL; 875 876 #ifdef FW_VMACCESS 877 xfer = fw_xfer_alloc(); 878 if(xfer == NULL) return; 879 880 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 881 if(fwb == NULL){ 882 fw_xfer_free(xfer); 883 return; 884 } 885 xfer->hand = fw_vmaccess; 886 xfer->fc = fc; 887 xfer->sc = NULL; 888 889 fwb->start_hi = 0x2; 890 fwb->start_lo = 0; 891 fwb->addrlen = 0xffffffff; 892 fwb->xfer = xfer; 893 fw_bindadd(fc, fwb); 894 #endif 895 } 896 897 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 898 ((fwb)->end < (addr))?1:0) 899 900 /* 901 * To lookup bound process from IEEE1394 address. 902 */ 903 struct fw_bind * 904 fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 905 { 906 u_int64_t addr; 907 struct fw_bind *tfw; 908 909 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 910 STAILQ_FOREACH(tfw, &fc->binds, fclist) 911 if (BIND_CMP(addr, tfw) == 0) 912 return(tfw); 913 return(NULL); 914 } 915 916 /* 917 * To bind IEEE1394 address block to process. 918 */ 919 int 920 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 921 { 922 struct fw_bind *tfw, *prev = NULL; 923 924 if (fwb->start > fwb->end) { 925 printf("%s: invalid range\n", __func__); 926 return EINVAL; 927 } 928 929 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 930 if (fwb->end < tfw->start) 931 break; 932 prev = tfw; 933 } 934 if (prev == NULL) { 935 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 936 return (0); 937 } 938 if (prev->end < fwb->start) { 939 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 940 return (0); 941 } 942 943 printf("%s: bind failed\n", __func__); 944 return (EBUSY); 945 } 946 947 /* 948 * To free IEEE1394 address block. 949 */ 950 int 951 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 952 { 953 #if 0 954 struct fw_xfer *xfer, *next; 955 #endif 956 struct fw_bind *tfw; 957 int s; 958 959 s = splfw(); 960 STAILQ_FOREACH(tfw, &fc->binds, fclist) 961 if (tfw == fwb) { 962 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 963 goto found; 964 } 965 966 printf("%s: no such binding\n", __func__); 967 splx(s); 968 return (1); 969 found: 970 #if 0 971 /* shall we do this? */ 972 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 973 next = STAILQ_NEXT(xfer, link); 974 fw_xfer_free(xfer); 975 } 976 STAILQ_INIT(&fwb->xferlist); 977 #endif 978 979 splx(s); 980 return 0; 981 } 982 983 int 984 fw_xferlist_add(struct fw_xferlist *q, struct malloc_type *type, 985 int slen, int rlen, int n, 986 struct firewire_comm *fc, void *sc, void (*hand)(struct fw_xfer *)) 987 { 988 int i, s; 989 struct fw_xfer *xfer; 990 991 for (i = 0; i < n; i++) { 992 xfer = fw_xfer_alloc_buf(type, slen, rlen); 993 if (xfer == NULL) 994 return (n); 995 xfer->fc = fc; 996 xfer->sc = sc; 997 xfer->hand = hand; 998 s = splfw(); 999 STAILQ_INSERT_TAIL(q, xfer, link); 1000 splx(s); 1001 } 1002 return (n); 1003 } 1004 1005 void 1006 fw_xferlist_remove(struct fw_xferlist *q) 1007 { 1008 struct fw_xfer *xfer, *next; 1009 1010 for (xfer = STAILQ_FIRST(q); xfer != NULL; xfer = next) { 1011 next = STAILQ_NEXT(xfer, link); 1012 fw_xfer_free_buf(xfer); 1013 } 1014 STAILQ_INIT(q); 1015 } 1016 1017 /* 1018 * To free transaction label. 1019 */ 1020 static void 1021 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 1022 { 1023 struct fw_xfer *txfer; 1024 int s; 1025 1026 if (xfer->tl < 0) 1027 return; 1028 1029 s = splfw(); 1030 #if 1 /* make sure the label is allocated */ 1031 STAILQ_FOREACH(txfer, &fc->tlabels[xfer->tl], tlabel) 1032 if(txfer == xfer) 1033 break; 1034 if (txfer == NULL) { 1035 printf("%s: the xfer is not in the tlabel(%d)\n", 1036 __FUNCTION__, xfer->tl); 1037 splx(s); 1038 return; 1039 } 1040 #endif 1041 1042 STAILQ_REMOVE(&fc->tlabels[xfer->tl], xfer, fw_xfer, tlabel); 1043 splx(s); 1044 return; 1045 } 1046 1047 /* 1048 * To obtain XFER structure by transaction label. 1049 */ 1050 static struct fw_xfer * 1051 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 1052 { 1053 struct fw_xfer *xfer; 1054 int s = splfw(); 1055 1056 STAILQ_FOREACH(xfer, &fc->tlabels[tlabel], tlabel) 1057 if(xfer->send.hdr.mode.hdr.dst == node) { 1058 splx(s); 1059 if (firewire_debug > 2) 1060 printf("fw_tl2xfer: found tl=%d\n", tlabel); 1061 return(xfer); 1062 } 1063 if (firewire_debug > 1) 1064 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 1065 splx(s); 1066 return(NULL); 1067 } 1068 1069 /* 1070 * To allocate IEEE1394 XFER structure. 1071 */ 1072 struct fw_xfer * 1073 fw_xfer_alloc(struct malloc_type *type) 1074 { 1075 struct fw_xfer *xfer; 1076 1077 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 1078 if (xfer == NULL) 1079 return xfer; 1080 1081 xfer->malloc = type; 1082 1083 return xfer; 1084 } 1085 1086 struct fw_xfer * 1087 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 1088 { 1089 struct fw_xfer *xfer; 1090 1091 xfer = fw_xfer_alloc(type); 1092 if (xfer == NULL) 1093 return(NULL); 1094 xfer->send.pay_len = send_len; 1095 xfer->recv.pay_len = recv_len; 1096 if (send_len > 0) { 1097 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 1098 if (xfer->send.payload == NULL) { 1099 fw_xfer_free(xfer); 1100 return(NULL); 1101 } 1102 } 1103 if (recv_len > 0) { 1104 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 1105 if (xfer->recv.payload == NULL) { 1106 if (xfer->send.payload != NULL) 1107 free(xfer->send.payload, type); 1108 fw_xfer_free(xfer); 1109 return(NULL); 1110 } 1111 } 1112 return(xfer); 1113 } 1114 1115 /* 1116 * IEEE1394 XFER post process. 1117 */ 1118 void 1119 fw_xfer_done(struct fw_xfer *xfer) 1120 { 1121 if (xfer->hand == NULL) { 1122 printf("hand == NULL\n"); 1123 return; 1124 } 1125 1126 if (xfer->fc == NULL) 1127 panic("fw_xfer_done: why xfer->fc is NULL?"); 1128 1129 fw_tl_free(xfer->fc, xfer); 1130 xfer->hand(xfer); 1131 } 1132 1133 void 1134 fw_xfer_unload(struct fw_xfer* xfer) 1135 { 1136 int s; 1137 1138 if(xfer == NULL ) return; 1139 if(xfer->state == FWXF_INQ){ 1140 printf("fw_xfer_free FWXF_INQ\n"); 1141 s = splfw(); 1142 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1143 xfer->q->queued --; 1144 splx(s); 1145 } 1146 if (xfer->fc != NULL) { 1147 #if 1 1148 if(xfer->state == FWXF_START) 1149 /* 1150 * This could happen if: 1151 * 1. We call fwohci_arcv() before fwohci_txd(). 1152 * 2. firewire_watch() is called. 1153 */ 1154 printf("fw_xfer_free FWXF_START\n"); 1155 #endif 1156 } 1157 xfer->state = FWXF_INIT; 1158 xfer->resp = 0; 1159 } 1160 /* 1161 * To free IEEE1394 XFER structure. 1162 */ 1163 void 1164 fw_xfer_free_buf( struct fw_xfer* xfer) 1165 { 1166 if (xfer == NULL) { 1167 printf("%s: xfer == NULL\n", __func__); 1168 return; 1169 } 1170 fw_xfer_unload(xfer); 1171 if(xfer->send.payload != NULL){ 1172 free(xfer->send.payload, xfer->malloc); 1173 } 1174 if(xfer->recv.payload != NULL){ 1175 free(xfer->recv.payload, xfer->malloc); 1176 } 1177 free(xfer, xfer->malloc); 1178 } 1179 1180 void 1181 fw_xfer_free( struct fw_xfer* xfer) 1182 { 1183 if (xfer == NULL) { 1184 printf("%s: xfer == NULL\n", __func__); 1185 return; 1186 } 1187 fw_xfer_unload(xfer); 1188 free(xfer, xfer->malloc); 1189 } 1190 1191 void 1192 fw_asy_callback_free(struct fw_xfer *xfer) 1193 { 1194 #if 0 1195 printf("asyreq done state=%d resp=%d\n", 1196 xfer->state, xfer->resp); 1197 #endif 1198 fw_xfer_free(xfer); 1199 } 1200 1201 /* 1202 * To configure PHY. 1203 */ 1204 static void 1205 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1206 { 1207 struct fw_xfer *xfer; 1208 struct fw_pkt *fp; 1209 1210 fc->status = FWBUSPHYCONF; 1211 1212 xfer = fw_xfer_alloc(M_FWXFER); 1213 if (xfer == NULL) 1214 return; 1215 xfer->fc = fc; 1216 xfer->hand = fw_asy_callback_free; 1217 1218 fp = &xfer->send.hdr; 1219 fp->mode.ld[1] = 0; 1220 if (root_node >= 0) 1221 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1222 if (gap_count >= 0) 1223 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1224 fp->mode.ld[2] = ~fp->mode.ld[1]; 1225 /* XXX Dangerous, how to pass PHY packet to device driver */ 1226 fp->mode.common.tcode |= FWTCODE_PHY; 1227 1228 if (firewire_debug) 1229 printf("send phy_config root_node=%d gap_count=%d\n", 1230 root_node, gap_count); 1231 fw_asyreq(fc, -1, xfer); 1232 } 1233 1234 #if 0 1235 /* 1236 * Dump self ID. 1237 */ 1238 static void 1239 fw_print_sid(uint32_t sid) 1240 { 1241 union fw_self_id *s; 1242 s = (union fw_self_id *) &sid; 1243 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1244 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1245 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1246 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1247 s->p0.power_class, s->p0.port0, s->p0.port1, 1248 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1249 } 1250 #endif 1251 1252 /* 1253 * To receive self ID. 1254 */ 1255 void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1256 { 1257 uint32_t *p; 1258 union fw_self_id *self_id; 1259 u_int i, j, node, c_port = 0, i_branch = 0; 1260 1261 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1262 fc->status = FWBUSINIT; 1263 fc->max_node = fc->nodeid & 0x3f; 1264 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1265 fc->status = FWBUSCYMELECT; 1266 fc->topology_map->crc_len = 2; 1267 fc->topology_map->generation ++; 1268 fc->topology_map->self_id_count = 0; 1269 fc->topology_map->node_count = 0; 1270 fc->speed_map->generation ++; 1271 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1272 self_id = &fc->topology_map->self_id[0]; 1273 for(i = 0; i < fc->sid_cnt; i ++){ 1274 if (sid[1] != ~sid[0]) { 1275 printf("fw_sidrcv: invalid self-id packet\n"); 1276 sid += 2; 1277 continue; 1278 } 1279 *self_id = *((union fw_self_id *)sid); 1280 fc->topology_map->crc_len++; 1281 if(self_id->p0.sequel == 0){ 1282 fc->topology_map->node_count ++; 1283 c_port = 0; 1284 #if 0 1285 fw_print_sid(sid[0]); 1286 #endif 1287 node = self_id->p0.phy_id; 1288 if(fc->max_node < node){ 1289 fc->max_node = self_id->p0.phy_id; 1290 } 1291 /* XXX I'm not sure this is the right speed_map */ 1292 fc->speed_map->speed[node][node] 1293 = self_id->p0.phy_speed; 1294 for (j = 0; j < node; j ++) { 1295 fc->speed_map->speed[j][node] 1296 = fc->speed_map->speed[node][j] 1297 = min(fc->speed_map->speed[j][j], 1298 self_id->p0.phy_speed); 1299 } 1300 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1301 (self_id->p0.link_active && self_id->p0.contender)) { 1302 fc->irm = self_id->p0.phy_id; 1303 } 1304 if(self_id->p0.port0 >= 0x2){ 1305 c_port++; 1306 } 1307 if(self_id->p0.port1 >= 0x2){ 1308 c_port++; 1309 } 1310 if(self_id->p0.port2 >= 0x2){ 1311 c_port++; 1312 } 1313 } 1314 if(c_port > 2){ 1315 i_branch += (c_port - 2); 1316 } 1317 sid += 2; 1318 self_id++; 1319 fc->topology_map->self_id_count ++; 1320 } 1321 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1322 /* CRC */ 1323 fc->topology_map->crc = fw_crc16( 1324 (uint32_t *)&fc->topology_map->generation, 1325 fc->topology_map->crc_len * 4); 1326 fc->speed_map->crc = fw_crc16( 1327 (uint32_t *)&fc->speed_map->generation, 1328 fc->speed_map->crc_len * 4); 1329 /* byteswap and copy to CSR */ 1330 p = (uint32_t *)fc->topology_map; 1331 for (i = 0; i <= fc->topology_map->crc_len; i++) 1332 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1333 p = (uint32_t *)fc->speed_map; 1334 CSRARC(fc, SPED_MAP) = htonl(*p++); 1335 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1336 /* don't byte-swap uint8_t array */ 1337 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1338 1339 fc->max_hop = fc->max_node - i_branch; 1340 printf(", maxhop <= %d", fc->max_hop); 1341 1342 if(fc->irm == -1 ){ 1343 printf(", Not found IRM capable node"); 1344 }else{ 1345 printf(", cable IRM = %d", fc->irm); 1346 if (fc->irm == fc->nodeid) 1347 printf(" (me)"); 1348 } 1349 printf("\n"); 1350 1351 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1352 if (fc->irm == fc->nodeid) { 1353 fc->status = FWBUSMGRDONE; 1354 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1355 fw_bmr(fc); 1356 } else { 1357 fc->status = FWBUSMGRELECT; 1358 callout_reset(&fc->bmr_callout, hz/8, 1359 (void *)fw_try_bmr, (void *)fc); 1360 } 1361 } else 1362 fc->status = FWBUSMGRDONE; 1363 1364 callout_reset(&fc->busprobe_callout, hz/4, 1365 (void *)fw_bus_probe, (void *)fc); 1366 } 1367 1368 /* 1369 * To probe devices on the IEEE1394 bus. 1370 */ 1371 static void 1372 fw_bus_probe(struct firewire_comm *fc) 1373 { 1374 int s; 1375 struct fw_device *fwdev; 1376 1377 s = splfw(); 1378 fc->status = FWBUSEXPLORE; 1379 1380 /* Invalidate all devices, just after bus reset. */ 1381 STAILQ_FOREACH(fwdev, &fc->devices, link) 1382 if (fwdev->status != FWDEVINVAL) { 1383 fwdev->status = FWDEVINVAL; 1384 fwdev->rcnt = 0; 1385 } 1386 splx(s); 1387 1388 wakeup((void *)fc); 1389 } 1390 1391 static int 1392 fw_explore_read_quads(struct fw_device *fwdev, int offset, 1393 uint32_t *quad, int n) 1394 { 1395 struct fw_xfer *xfer; 1396 uint32_t tmp; 1397 int i, error; 1398 1399 1400 for (i = 0; i < n; i ++, offset += sizeof(uint32_t)) { 1401 xfer = fwmem_read_quad(fwdev, NULL, -1, 1402 0xffff, 0xf0000000 | offset, (void *)&tmp, 1403 fw_asy_callback); 1404 if (xfer == NULL) 1405 return (-1); 1406 tsleep((void *)xfer, FWPRI, "rquad", 0); 1407 1408 if (xfer->resp == 0) 1409 quad[i] = ntohl(tmp); 1410 1411 error = xfer->resp; 1412 fw_xfer_free(xfer); 1413 if (error) 1414 return (error); 1415 } 1416 return (0); 1417 } 1418 1419 1420 static int 1421 fw_explore_csrblock(struct fw_device *fwdev, int offset, int recur) 1422 { 1423 int err, i, off; 1424 struct csrdirectory *dir; 1425 struct csrreg *reg; 1426 1427 1428 dir = (struct csrdirectory *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1429 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1430 (uint32_t *)dir, 1); 1431 if (err) 1432 return (-1); 1433 1434 offset += sizeof(uint32_t); 1435 reg = (struct csrreg *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1436 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1437 (uint32_t *)reg, dir->crc_len); 1438 if (err) 1439 return (-1); 1440 1441 /* XXX check CRC */ 1442 1443 off = CSRROMOFF + offset + sizeof(uint32_t) * (dir->crc_len - 1); 1444 if (fwdev->rommax < off) 1445 fwdev->rommax = off; 1446 1447 if (recur == 0) 1448 return (0); 1449 1450 for (i = 0; i < dir->crc_len; i ++, offset += sizeof(uint32_t)) { 1451 if (reg[i].key == CROM_UDIR) 1452 recur = 1; 1453 else if (reg[i].key == CROM_TEXTLEAF) 1454 recur = 0; 1455 else 1456 continue; 1457 1458 off = offset + reg[i].val * sizeof(uint32_t); 1459 if (off > CROMSIZE) { 1460 printf("%s: invalid offset %d\n", __FUNCTION__, off); 1461 return(-1); 1462 } 1463 err = fw_explore_csrblock(fwdev, off, recur); 1464 if (err) 1465 return (-1); 1466 } 1467 return (0); 1468 } 1469 1470 static void 1471 fw_kthread_create0(void *arg) 1472 { 1473 struct firewire_comm *fc = (struct firewire_comm *)arg; 1474 fw_thread *p; 1475 1476 config_pending_incr(); 1477 1478 /* create thread */ 1479 if (THREAD_CREATE(fw_bus_probe_thread, 1480 (void *)fc, &p, "fw%d_probe", device_get_unit(fc->bdev))) { 1481 1482 device_printf(fc->bdev, "unable to create thread"); 1483 panic("fw_kthread_create"); 1484 } 1485 } 1486 1487 static int 1488 fw_explore_node(struct fw_device *dfwdev) 1489 { 1490 struct firewire_comm *fc; 1491 struct fw_device *fwdev, *pfwdev, *tfwdev; 1492 uint32_t *csr; 1493 struct csrhdr *hdr; 1494 struct bus_info *binfo; 1495 int err, node, spd; 1496 1497 fc = dfwdev->fc; 1498 csr = dfwdev->csrrom; 1499 node = dfwdev->dst; 1500 1501 /* First quad */ 1502 err = fw_explore_read_quads(dfwdev, CSRROMOFF, &csr[0], 1); 1503 if (err) 1504 return (-1); 1505 hdr = (struct csrhdr *)&csr[0]; 1506 if (hdr->info_len != 4) { 1507 if (firewire_debug) 1508 printf("node%d: wrong bus info len(%d)\n", 1509 node, hdr->info_len); 1510 return (-1); 1511 } 1512 1513 /* bus info */ 1514 err = fw_explore_read_quads(dfwdev, CSRROMOFF + 0x04, &csr[1], 4); 1515 if (err) 1516 return (-1); 1517 binfo = (struct bus_info *)&csr[1]; 1518 if (binfo->bus_name != CSR_BUS_NAME_IEEE1394) { 1519 if (firewire_debug) 1520 printf("node%d: invalid bus name 0x%08x\n", 1521 node, binfo->bus_name); 1522 return (-1); 1523 } 1524 spd = fc->speed_map->speed[fc->nodeid][node]; 1525 STAILQ_FOREACH(fwdev, &fc->devices, link) 1526 if (FW_EUI64_EQUAL(fwdev->eui, binfo->eui64)) 1527 break; 1528 if (fwdev == NULL) { 1529 /* new device */ 1530 fwdev = malloc(sizeof(struct fw_device), M_FW, 1531 M_NOWAIT | M_ZERO); 1532 if (fwdev == NULL) { 1533 if (firewire_debug) 1534 printf("node%d: no memory\n", node); 1535 return (-1); 1536 } 1537 fwdev->fc = fc; 1538 fwdev->eui = binfo->eui64; 1539 fwdev->status = FWDEVNEW; 1540 /* insert into sorted fwdev list */ 1541 pfwdev = NULL; 1542 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1543 if (tfwdev->eui.hi > fwdev->eui.hi || 1544 (tfwdev->eui.hi == fwdev->eui.hi && 1545 tfwdev->eui.lo > fwdev->eui.lo)) 1546 break; 1547 pfwdev = tfwdev; 1548 } 1549 if (pfwdev == NULL) 1550 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1551 else 1552 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1553 1554 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1555 fw_linkspeed[spd], 1556 fwdev->eui.hi, fwdev->eui.lo); 1557 1558 } else 1559 fwdev->status = FWDEVINIT; 1560 fwdev->dst = node; 1561 fwdev->speed = spd; 1562 1563 /* unchanged ? */ 1564 if (bcmp(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5) == 0) { 1565 if (firewire_debug) 1566 printf("node%d: crom unchanged\n", node); 1567 return (0); 1568 } 1569 1570 bzero(&fwdev->csrrom[0], CROMSIZE); 1571 1572 /* copy first quad and bus info block */ 1573 bcopy(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5); 1574 fwdev->rommax = CSRROMOFF + sizeof(uint32_t) * 4; 1575 1576 err = fw_explore_csrblock(fwdev, 0x14, 1); /* root directory */ 1577 1578 if (err) { 1579 fwdev->status = FWDEVINVAL; 1580 fwdev->csrrom[0] = 0; 1581 } 1582 return (err); 1583 1584 } 1585 1586 /* 1587 * Find the self_id packet for a node, ignoring sequels. 1588 */ 1589 static union fw_self_id * 1590 fw_find_self_id(struct firewire_comm *fc, int node) 1591 { 1592 uint32_t i; 1593 union fw_self_id *s; 1594 1595 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1596 s = &fc->topology_map->self_id[i]; 1597 if (s->p0.sequel) 1598 continue; 1599 if (s->p0.phy_id == node) 1600 return s; 1601 } 1602 return 0; 1603 } 1604 1605 static void 1606 fw_explore(struct firewire_comm *fc) 1607 { 1608 int node, err, s, i, todo, todo2, trys; 1609 char nodes[63]; 1610 struct fw_device *dfwdev; 1611 1612 todo = 0; 1613 dfwdev = malloc(sizeof(*dfwdev), M_TEMP, M_NOWAIT); 1614 if (dfwdev == NULL) 1615 return; 1616 /* setup dummy fwdev */ 1617 dfwdev->fc = fc; 1618 dfwdev->speed = 0; 1619 dfwdev->maxrec = 8; /* 512 */ 1620 dfwdev->status = FWDEVINIT; 1621 1622 for (node = 0; node <= fc->max_node; node ++) { 1623 /* We don't probe myself and linkdown nodes */ 1624 if (node == fc->nodeid) 1625 continue; 1626 if (!fw_find_self_id(fc, node)->p0.link_active) { 1627 if (firewire_debug) 1628 printf("node%d: link down\n", node); 1629 continue; 1630 } 1631 nodes[todo++] = node; 1632 } 1633 1634 s = splfw(); 1635 for (trys = 0; todo > 0 && trys < 3; trys ++) { 1636 todo2 = 0; 1637 for (i = 0; i < todo; i ++) { 1638 dfwdev->dst = nodes[i]; 1639 err = fw_explore_node(dfwdev); 1640 if (err) 1641 nodes[todo2++] = nodes[i]; 1642 if (firewire_debug) 1643 printf("%s: node %d, err = %d\n", 1644 __FUNCTION__, node, err); 1645 } 1646 todo = todo2; 1647 } 1648 splx(s); 1649 free(dfwdev, M_TEMP); 1650 } 1651 1652 static void 1653 fw_bus_probe_thread(void *arg) 1654 { 1655 struct firewire_comm *fc; 1656 1657 fc = (struct firewire_comm *)arg; 1658 1659 config_pending_decr(); 1660 1661 FW_LOCK; 1662 while (1) { 1663 if (fc->status == FWBUSEXPLORE) { 1664 fw_explore(fc); 1665 fc->status = FWBUSEXPDONE; 1666 if (firewire_debug) 1667 printf("bus_explore done\n"); 1668 fw_attach_dev(fc); 1669 } else if (fc->status == FWBUSDETACH) 1670 break; 1671 tsleep((void *)fc, FWPRI, "fwprobe", 0); 1672 } 1673 FW_UNLOCK; 1674 wakeup(fc); 1675 THREAD_EXIT(0); 1676 } 1677 1678 1679 /* 1680 * To attach sub-devices layer onto IEEE1394 bus. 1681 */ 1682 static void 1683 fw_attach_dev(struct firewire_comm *fc) 1684 { 1685 struct fw_device *fwdev, *next; 1686 struct firewire_dev_comm *fdc; 1687 struct fw_attach_args fwa; 1688 1689 fwa.name = "sbp"; 1690 fwa.fc = fc; 1691 1692 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1693 next = STAILQ_NEXT(fwdev, link); 1694 switch (fwdev->status) { 1695 case FWDEVNEW: 1696 FIREWIRE_SBP_ATTACH; 1697 1698 case FWDEVINIT: 1699 case FWDEVATTACHED: 1700 fwdev->status = FWDEVATTACHED; 1701 break; 1702 1703 case FWDEVINVAL: 1704 fwdev->rcnt ++; 1705 break; 1706 1707 default: 1708 /* XXX */ 1709 break; 1710 } 1711 } 1712 1713 FIREWIRE_CHILDREN_FOREACH_FUNC(post_explore, fdc); 1714 1715 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1716 next = STAILQ_NEXT(fwdev, link); 1717 if (fwdev->rcnt > 0 && fwdev->rcnt > hold_count) { 1718 /* 1719 * Remove devices which have not been seen 1720 * for a while. 1721 */ 1722 FIREWIRE_SBP_DETACH; 1723 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1724 free(fwdev, M_FW); 1725 } 1726 } 1727 1728 return; 1729 } 1730 1731 /* 1732 * To allocate unique transaction label. 1733 */ 1734 static int 1735 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1736 { 1737 u_int i; 1738 struct fw_xfer *txfer; 1739 int s; 1740 static uint32_t label = 0; 1741 1742 s = splfw(); 1743 for( i = 0 ; i < 0x40 ; i ++){ 1744 label = (label + 1) & 0x3f; 1745 STAILQ_FOREACH(txfer, &fc->tlabels[label], tlabel) 1746 if (txfer->send.hdr.mode.hdr.dst == 1747 xfer->send.hdr.mode.hdr.dst) 1748 break; 1749 if(txfer == NULL) { 1750 STAILQ_INSERT_TAIL(&fc->tlabels[label], xfer, tlabel); 1751 splx(s); 1752 if (firewire_debug > 1) 1753 printf("fw_get_tlabel: dst=%d tl=%d\n", 1754 xfer->send.hdr.mode.hdr.dst, label); 1755 return(label); 1756 } 1757 } 1758 splx(s); 1759 1760 if (firewire_debug > 1) 1761 printf("fw_get_tlabel: no free tlabel\n"); 1762 return(-1); 1763 } 1764 1765 static void 1766 fw_rcv_copy(struct fw_rcv_buf *rb) 1767 { 1768 struct fw_pkt *pkt; 1769 u_char *p; 1770 const struct tcode_info *tinfo; 1771 u_int res, i, len, plen; 1772 1773 rb->xfer->recv.spd = rb->spd; 1774 1775 pkt = (struct fw_pkt *)rb->vec->iov_base; 1776 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1777 1778 /* Copy header */ 1779 p = (u_char *)&rb->xfer->recv.hdr; 1780 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1781 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1782 rb->vec->iov_len -= tinfo->hdr_len; 1783 1784 /* Copy payload */ 1785 p = (u_char *)rb->xfer->recv.payload; 1786 res = rb->xfer->recv.pay_len; 1787 1788 /* special handling for RRESQ */ 1789 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1790 p != NULL && res >= sizeof(uint32_t)) { 1791 *(uint32_t *)p = pkt->mode.rresq.data; 1792 rb->xfer->recv.pay_len = sizeof(uint32_t); 1793 return; 1794 } 1795 1796 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1797 return; 1798 1799 plen = pkt->mode.rresb.len; 1800 1801 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1802 len = MIN(rb->vec->iov_len, plen); 1803 if (res < len) { 1804 printf("rcv buffer(%d) is %d bytes short.\n", 1805 rb->xfer->recv.pay_len, len - res); 1806 len = res; 1807 } 1808 if (p) { 1809 bcopy(rb->vec->iov_base, p, len); 1810 p += len; 1811 } 1812 res -= len; 1813 plen -= len; 1814 if (res == 0 || plen == 0) 1815 break; 1816 } 1817 rb->xfer->recv.pay_len -= res; 1818 1819 } 1820 1821 /* 1822 * Generic packet receiving process. 1823 */ 1824 void 1825 fw_rcv(struct fw_rcv_buf *rb) 1826 { 1827 struct fw_pkt *fp, *resfp; 1828 struct fw_bind *bind; 1829 int tcode; 1830 int i, len, oldstate; 1831 #if 0 1832 { 1833 uint32_t *qld; 1834 int i; 1835 qld = (uint32_t *)buf; 1836 printf("spd %d len:%d\n", spd, len); 1837 for( i = 0 ; i <= len && i < 32; i+= 4){ 1838 printf("0x%08x ", ntohl(qld[i/4])); 1839 if((i % 16) == 15) printf("\n"); 1840 } 1841 if((i % 16) != 15) printf("\n"); 1842 } 1843 #endif 1844 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1845 tcode = fp->mode.common.tcode; 1846 switch (tcode) { 1847 case FWTCODE_WRES: 1848 case FWTCODE_RRESQ: 1849 case FWTCODE_RRESB: 1850 case FWTCODE_LRES: 1851 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1852 fp->mode.hdr.tlrt >> 2); 1853 if(rb->xfer == NULL) { 1854 printf("fw_rcv: unknown response " 1855 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1856 tcode_str[tcode], tcode, 1857 fp->mode.hdr.src, 1858 fp->mode.hdr.tlrt >> 2, 1859 fp->mode.hdr.tlrt & 3, 1860 fp->mode.rresq.data); 1861 #if 1 1862 printf("try ad-hoc work around!!\n"); 1863 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1864 (fp->mode.hdr.tlrt >> 2)^3); 1865 if (rb->xfer == NULL) { 1866 printf("no use...\n"); 1867 return; 1868 } 1869 #else 1870 return; 1871 #endif 1872 } 1873 fw_rcv_copy(rb); 1874 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1875 rb->xfer->resp = EIO; 1876 else 1877 rb->xfer->resp = 0; 1878 /* make sure the packet is drained in AT queue */ 1879 oldstate = rb->xfer->state; 1880 rb->xfer->state = FWXF_RCVD; 1881 switch (oldstate) { 1882 case FWXF_SENT: 1883 fw_xfer_done(rb->xfer); 1884 break; 1885 case FWXF_START: 1886 #if 0 1887 if (firewire_debug) 1888 printf("not sent yet tl=%x\n", rb->xfer->tl); 1889 #endif 1890 break; 1891 default: 1892 printf("unexpected state %d\n", rb->xfer->state); 1893 } 1894 return; 1895 case FWTCODE_WREQQ: 1896 case FWTCODE_WREQB: 1897 case FWTCODE_RREQQ: 1898 case FWTCODE_RREQB: 1899 case FWTCODE_LREQ: 1900 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1901 fp->mode.rreqq.dest_lo); 1902 if(bind == NULL){ 1903 #if 1 1904 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1905 #if defined(__DragonFly__) || \ 1906 (defined(__FreeBSD__) && __FreeBSD_version < 500000) 1907 " src=0x%x data=%lx\n", 1908 #else 1909 " src=0x%x data=%x\n", 1910 #endif 1911 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1912 tcode_str[tcode], tcode, 1913 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1914 #endif 1915 if (rb->fc->status == FWBUSRESET) { 1916 printf("fw_rcv: cannot respond(bus reset)!\n"); 1917 return; 1918 } 1919 rb->xfer = fw_xfer_alloc(M_FWXFER); 1920 if(rb->xfer == NULL){ 1921 return; 1922 } 1923 rb->xfer->send.spd = rb->spd; 1924 rb->xfer->send.pay_len = 0; 1925 resfp = &rb->xfer->send.hdr; 1926 switch (tcode) { 1927 case FWTCODE_WREQQ: 1928 case FWTCODE_WREQB: 1929 resfp->mode.hdr.tcode = FWTCODE_WRES; 1930 break; 1931 case FWTCODE_RREQQ: 1932 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1933 break; 1934 case FWTCODE_RREQB: 1935 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1936 break; 1937 case FWTCODE_LREQ: 1938 resfp->mode.hdr.tcode = FWTCODE_LRES; 1939 break; 1940 } 1941 resfp->mode.hdr.dst = fp->mode.hdr.src; 1942 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1943 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1944 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1945 resfp->mode.rresb.extcode = 0; 1946 resfp->mode.rresb.len = 0; 1947 /* 1948 rb->xfer->hand = fw_asy_callback; 1949 */ 1950 rb->xfer->hand = fw_xfer_free; 1951 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1952 fw_xfer_free(rb->xfer); 1953 return; 1954 } 1955 return; 1956 } 1957 len = 0; 1958 for (i = 0; i < rb->nvec; i ++) 1959 len += rb->vec[i].iov_len; 1960 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1961 if (rb->xfer == NULL) { 1962 #if 1 1963 printf("Discard a packet for this bind.\n"); 1964 #endif 1965 return; 1966 } 1967 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1968 fw_rcv_copy(rb); 1969 rb->xfer->hand(rb->xfer); 1970 return; 1971 #if 0 /* shouldn't happen ?? or for GASP */ 1972 case FWTCODE_STREAM: 1973 { 1974 struct fw_xferq *xferq; 1975 1976 xferq = rb->fc->ir[sub]; 1977 #if 0 1978 printf("stream rcv dma %d len %d off %d spd %d\n", 1979 sub, len, off, spd); 1980 #endif 1981 if(xferq->queued >= xferq->maxq) { 1982 printf("receive queue is full\n"); 1983 return; 1984 } 1985 /* XXX get xfer from xfer queue, we don't need copy for 1986 per packet mode */ 1987 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1988 vec[0].iov_len); 1989 if (rb->xfer == NULL) 1990 return; 1991 fw_rcv_copy(rb) 1992 s = splfw(); 1993 xferq->queued++; 1994 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1995 splx(s); 1996 sc = device_get_softc(rb->fc->bdev); 1997 #if defined(__DragonFly__) || \ 1998 (defined(__FreeBSD__) && __FreeBSD_version < 500000) 1999 if (&xferq->rsel.si_pid != 0) 2000 #else 2001 if (SEL_WAITING(&xferq->rsel)) 2002 #endif 2003 selwakeuppri(&xferq->rsel, FWPRI); 2004 if (xferq->flag & FWXFERQ_WAKEUP) { 2005 xferq->flag &= ~FWXFERQ_WAKEUP; 2006 wakeup((caddr_t)xferq); 2007 } 2008 if (xferq->flag & FWXFERQ_HANDLER) { 2009 xferq->hand(xferq); 2010 } 2011 return; 2012 break; 2013 } 2014 #endif 2015 default: 2016 printf("fw_rcv: unknow tcode %d\n", tcode); 2017 break; 2018 } 2019 } 2020 2021 /* 2022 * Post process for Bus Manager election process. 2023 */ 2024 static void 2025 fw_try_bmr_callback(struct fw_xfer *xfer) 2026 { 2027 struct firewire_comm *fc; 2028 int bmr; 2029 2030 if (xfer == NULL) 2031 return; 2032 fc = xfer->fc; 2033 if (xfer->resp != 0) 2034 goto error; 2035 if (xfer->recv.payload == NULL) 2036 goto error; 2037 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2038 goto error; 2039 2040 bmr = ntohl(xfer->recv.payload[0]); 2041 if (bmr == 0x3f) 2042 bmr = fc->nodeid; 2043 2044 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2045 fw_xfer_free_buf(xfer); 2046 fw_bmr(fc); 2047 return; 2048 2049 error: 2050 device_printf(fc->bdev, "bus manager election failed\n"); 2051 fw_xfer_free_buf(xfer); 2052 } 2053 2054 2055 /* 2056 * To candidate Bus Manager election process. 2057 */ 2058 static void 2059 fw_try_bmr(void *arg) 2060 { 2061 struct fw_xfer *xfer; 2062 struct firewire_comm *fc = (struct firewire_comm *)arg; 2063 struct fw_pkt *fp; 2064 int err = 0; 2065 2066 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2067 if(xfer == NULL){ 2068 return; 2069 } 2070 xfer->send.spd = 0; 2071 fc->status = FWBUSMGRELECT; 2072 2073 fp = &xfer->send.hdr; 2074 fp->mode.lreq.dest_hi = 0xffff; 2075 fp->mode.lreq.tlrt = 0; 2076 fp->mode.lreq.tcode = FWTCODE_LREQ; 2077 fp->mode.lreq.pri = 0; 2078 fp->mode.lreq.src = 0; 2079 fp->mode.lreq.len = 8; 2080 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2081 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2082 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2083 xfer->send.payload[0] = htonl(0x3f); 2084 xfer->send.payload[1] = htonl(fc->nodeid); 2085 xfer->hand = fw_try_bmr_callback; 2086 2087 err = fw_asyreq(fc, -1, xfer); 2088 if(err){ 2089 fw_xfer_free_buf(xfer); 2090 return; 2091 } 2092 return; 2093 } 2094 2095 #ifdef FW_VMACCESS 2096 /* 2097 * Software implementation for physical memory block access. 2098 * XXX:Too slow, usef for debug purpose only. 2099 */ 2100 static void 2101 fw_vmaccess(struct fw_xfer *xfer){ 2102 struct fw_pkt *rfp, *sfp = NULL; 2103 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2104 2105 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2106 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2107 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2108 if(xfer->resp != 0){ 2109 fw_xfer_free( xfer); 2110 return; 2111 } 2112 if(xfer->recv.buf == NULL){ 2113 fw_xfer_free( xfer); 2114 return; 2115 } 2116 rfp = (struct fw_pkt *)xfer->recv.buf; 2117 switch(rfp->mode.hdr.tcode){ 2118 /* XXX need fix for 64bit arch */ 2119 case FWTCODE_WREQB: 2120 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2121 xfer->send.len = 12; 2122 sfp = (struct fw_pkt *)xfer->send.buf; 2123 bcopy(rfp->mode.wreqb.payload, 2124 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2125 sfp->mode.wres.tcode = FWTCODE_WRES; 2126 sfp->mode.wres.rtcode = 0; 2127 break; 2128 case FWTCODE_WREQQ: 2129 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2130 xfer->send.len = 12; 2131 sfp->mode.wres.tcode = FWTCODE_WRES; 2132 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2133 sfp->mode.wres.rtcode = 0; 2134 break; 2135 case FWTCODE_RREQB: 2136 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2137 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2138 sfp = (struct fw_pkt *)xfer->send.buf; 2139 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2140 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2141 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2142 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2143 sfp->mode.rresb.rtcode = 0; 2144 sfp->mode.rresb.extcode = 0; 2145 break; 2146 case FWTCODE_RREQQ: 2147 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2148 xfer->send.len = 16; 2149 sfp = (struct fw_pkt *)xfer->send.buf; 2150 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2151 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2152 sfp->mode.rresb.rtcode = 0; 2153 break; 2154 default: 2155 fw_xfer_free( xfer); 2156 return; 2157 } 2158 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2159 xfer->dst = ntohs(rfp->mode.hdr.src); 2160 xfer->hand = fw_xfer_free; 2161 2162 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2163 sfp->mode.hdr.pri = 0; 2164 2165 fw_asyreq(xfer->fc, -1, xfer); 2166 /**/ 2167 return; 2168 } 2169 #endif 2170 2171 /* 2172 * CRC16 check-sum for IEEE1394 register blocks. 2173 */ 2174 uint16_t 2175 fw_crc16(uint32_t *ptr, uint32_t len){ 2176 uint32_t i, sum, crc = 0; 2177 int shift; 2178 len = (len + 3) & ~3; 2179 for(i = 0 ; i < len ; i+= 4){ 2180 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2181 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2182 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2183 } 2184 crc &= 0xffff; 2185 } 2186 return((uint16_t) crc); 2187 } 2188 2189 static int 2190 fw_bmr(struct firewire_comm *fc) 2191 { 2192 struct fw_device fwdev; 2193 union fw_self_id *self_id; 2194 int cmstr; 2195 uint32_t quad; 2196 2197 /* Check to see if the current root node is cycle master capable */ 2198 self_id = fw_find_self_id(fc, fc->max_node); 2199 if (fc->max_node > 0) { 2200 /* XXX check cmc bit of businfo block rather than contender */ 2201 if (self_id->p0.link_active && self_id->p0.contender) 2202 cmstr = fc->max_node; 2203 else { 2204 device_printf(fc->bdev, 2205 "root node is not cycle master capable\n"); 2206 /* XXX shall we be the cycle master? */ 2207 cmstr = fc->nodeid; 2208 /* XXX need bus reset */ 2209 } 2210 } else 2211 cmstr = -1; 2212 2213 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2214 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2215 /* We are not the bus manager */ 2216 printf("\n"); 2217 return(0); 2218 } 2219 printf("(me)\n"); 2220 2221 /* Optimize gapcount */ 2222 if(fc->max_hop <= MAX_GAPHOP ) 2223 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2224 /* If we are the cycle master, nothing to do */ 2225 if (cmstr == fc->nodeid || cmstr == -1) 2226 return 0; 2227 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2228 bzero(&fwdev, sizeof(fwdev)); 2229 fwdev.fc = fc; 2230 fwdev.dst = cmstr; 2231 fwdev.speed = 0; 2232 fwdev.maxrec = 8; /* 512 */ 2233 fwdev.status = FWDEVINIT; 2234 /* Set cmstr bit on the cycle master */ 2235 quad = htonl(1 << 8); 2236 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2237 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2238 2239 return 0; 2240 } 2241 2242 #if defined(__FreeBSD__) 2243 static int 2244 fw_modevent(module_t mode, int type, void *data) 2245 { 2246 int err = 0; 2247 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2248 static eventhandler_tag fwdev_ehtag = NULL; 2249 #endif 2250 2251 switch (type) { 2252 case MOD_LOAD: 2253 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2254 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2255 fwdev_clone, 0, 1000); 2256 #endif 2257 break; 2258 case MOD_UNLOAD: 2259 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2260 if (fwdev_ehtag != NULL) 2261 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2262 #endif 2263 break; 2264 case MOD_SHUTDOWN: 2265 break; 2266 default: 2267 return (EOPNOTSUPP); 2268 } 2269 return (err); 2270 } 2271 2272 2273 #ifdef __DragonFly__ 2274 DECLARE_DUMMY_MODULE(firewire); 2275 #endif 2276 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2277 MODULE_VERSION(firewire, 1); 2278 #endif 2279
Indexes created Fri Sep 26 20:09:58 GMT 2025