1 /* 2 * Copyright (c) 2003 Hidetoshi Shimokawa 3 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the acknowledgement as bellow: 16 * 17 * This product includes software developed by K. Kobayashi and H. Shimokawa 18 * 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 25 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 * 34 * $FreeBSD: src/sys/dev/firewire/firewire.c,v 1.68 2004/01/08 14:58:09 simokawa Exp $ 35 * $DragonFly: src/sys/bus/firewire/firewire.c,v 1.9 2004/12/20 17:44:51 dillon Exp $ 36 * 37 */ 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/types.h> 42 43 #include <sys/kernel.h> 44 #include <sys/malloc.h> 45 #include <sys/conf.h> 46 #include <sys/sysctl.h> 47 48 #if defined(__DragonFly__) || __FreeBSD_version < 500000 49 #include <machine/clock.h> /* for DELAY() */ 50 #endif 51 52 #include <sys/bus.h> /* used by smbus and newbus */ 53 #include <machine/bus.h> 54 55 #ifdef __DragonFly__ 56 #include "firewire.h" 57 #include "firewirereg.h" 58 #include "fwmem.h" 59 #include "iec13213.h" 60 #include "iec68113.h" 61 #else 62 #include <dev/firewire/firewire.h> 63 #include <dev/firewire/firewirereg.h> 64 #include <dev/firewire/fwmem.h> 65 #include <dev/firewire/iec13213.h> 66 #include <dev/firewire/iec68113.h> 67 #endif 68 69 struct crom_src_buf { 70 struct crom_src src; 71 struct crom_chunk root; 72 struct crom_chunk vendor; 73 struct crom_chunk hw; 74 }; 75 76 int firewire_debug=0, try_bmr=1, hold_count=3; 77 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 78 "FireWire driver debug flag"); 79 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 80 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 81 "Try to be a bus manager"); 82 SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0, 83 "Number of count of bus resets for removing lost device information"); 84 85 MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 86 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 87 88 #define FW_MAXASYRTY 4 89 90 devclass_t firewire_devclass; 91 92 static void firewire_identify (driver_t *, device_t); 93 static int firewire_probe (device_t); 94 static int firewire_attach (device_t); 95 static int firewire_detach (device_t); 96 static int firewire_resume (device_t); 97 #if 0 98 static int firewire_shutdown (device_t); 99 #endif 100 static device_t firewire_add_child (device_t, int, const char *, int); 101 static void fw_try_bmr (void *); 102 static void fw_try_bmr_callback (struct fw_xfer *); 103 static void fw_asystart (struct fw_xfer *); 104 static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *); 105 static void fw_bus_probe (struct firewire_comm *); 106 static void fw_bus_explore (struct firewire_comm *); 107 static void fw_bus_explore_callback (struct fw_xfer *); 108 static void fw_attach_dev (struct firewire_comm *); 109 #ifdef FW_VMACCESS 110 static void fw_vmaccess (struct fw_xfer *); 111 #endif 112 struct fw_xfer *asyreqq (struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 113 u_int32_t, u_int32_t, void (*)(struct fw_xfer *)); 114 static int fw_bmr (struct firewire_comm *); 115 116 static device_method_t firewire_methods[] = { 117 /* Device interface */ 118 DEVMETHOD(device_identify, firewire_identify), 119 DEVMETHOD(device_probe, firewire_probe), 120 DEVMETHOD(device_attach, firewire_attach), 121 DEVMETHOD(device_detach, firewire_detach), 122 DEVMETHOD(device_suspend, bus_generic_suspend), 123 DEVMETHOD(device_resume, firewire_resume), 124 DEVMETHOD(device_shutdown, bus_generic_shutdown), 125 126 /* Bus interface */ 127 DEVMETHOD(bus_add_child, firewire_add_child), 128 DEVMETHOD(bus_print_child, bus_generic_print_child), 129 130 { 0, 0 } 131 }; 132 char *linkspeed[] = { 133 "S100", "S200", "S400", "S800", 134 "S1600", "S3200", "undef", "undef" 135 }; 136 137 static char *tcode_str[] = { 138 "WREQQ", "WREQB", "WRES", "undef", 139 "RREQQ", "RREQB", "RRESQ", "RRESB", 140 "CYCS", "LREQ", "STREAM", "LRES", 141 "undef", "undef", "PHY", "undef" 142 }; 143 144 /* IEEE-1394a Table C-2 Gap count as a function of hops*/ 145 #define MAX_GAPHOP 15 146 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 147 21, 24, 26, 29, 32, 35, 37, 40}; 148 149 static driver_t firewire_driver = { 150 "firewire", 151 firewire_methods, 152 sizeof(struct firewire_softc), 153 }; 154 155 /* 156 * Lookup fwdev by node id. 157 */ 158 struct fw_device * 159 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 160 { 161 struct fw_device *fwdev; 162 int s; 163 164 s = splfw(); 165 STAILQ_FOREACH(fwdev, &fc->devices, link) 166 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 167 break; 168 splx(s); 169 170 return fwdev; 171 } 172 173 /* 174 * Lookup fwdev by EUI64. 175 */ 176 struct fw_device * 177 fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 178 { 179 struct fw_device *fwdev; 180 int s; 181 182 s = splfw(); 183 STAILQ_FOREACH(fwdev, &fc->devices, link) 184 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 185 break; 186 splx(s); 187 188 if(fwdev == NULL) return NULL; 189 if(fwdev->status == FWDEVINVAL) return NULL; 190 return fwdev; 191 } 192 193 /* 194 * Async. request procedure for userland application. 195 */ 196 int 197 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 198 { 199 int err = 0; 200 struct fw_xferq *xferq; 201 int tl = 0, len; 202 struct fw_pkt *fp; 203 int tcode; 204 struct tcode_info *info; 205 206 if(xfer == NULL) return EINVAL; 207 if(xfer->act.hand == NULL){ 208 printf("act.hand == NULL\n"); 209 return EINVAL; 210 } 211 fp = &xfer->send.hdr; 212 213 tcode = fp->mode.common.tcode & 0xf; 214 info = &fc->tcode[tcode]; 215 if (info->flag == 0) { 216 printf("invalid tcode=%x\n", tcode); 217 return EINVAL; 218 } 219 if (info->flag & FWTI_REQ) 220 xferq = fc->atq; 221 else 222 xferq = fc->ats; 223 len = info->hdr_len; 224 if (xfer->send.pay_len > MAXREC(fc->maxrec)) { 225 printf("send.pay_len > maxrec\n"); 226 return EINVAL; 227 } 228 if (info->flag & FWTI_BLOCK_STR) 229 len = fp->mode.stream.len; 230 else if (info->flag & FWTI_BLOCK_ASY) 231 len = fp->mode.rresb.len; 232 else 233 len = 0; 234 if (len != xfer->send.pay_len){ 235 printf("len(%d) != send.pay_len(%d) %s(%x)\n", 236 len, xfer->send.pay_len, tcode_str[tcode], tcode); 237 return EINVAL; 238 } 239 240 if(xferq->start == NULL){ 241 printf("xferq->start == NULL\n"); 242 return EINVAL; 243 } 244 if(!(xferq->queued < xferq->maxq)){ 245 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 246 xferq->queued); 247 return EINVAL; 248 } 249 250 microtime(&xfer->tv); 251 if (info->flag & FWTI_TLABEL) { 252 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 253 return EIO; 254 fp->mode.hdr.tlrt = tl << 2; 255 } 256 257 xfer->tl = tl; 258 xfer->resp = 0; 259 xfer->fc = fc; 260 xfer->q = xferq; 261 xfer->retry_req = fw_asybusy; 262 263 fw_asystart(xfer); 264 return err; 265 } 266 /* 267 * Wakeup blocked process. 268 */ 269 void 270 fw_asy_callback(struct fw_xfer *xfer){ 271 wakeup(xfer); 272 return; 273 } 274 /* 275 * Postpone to later retry. 276 */ 277 void fw_asybusy(struct fw_xfer *xfer){ 278 printf("fw_asybusy\n"); 279 /* 280 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 281 */ 282 #if 0 283 DELAY(20000); 284 #endif 285 fw_asystart(xfer); 286 return; 287 } 288 289 /* 290 * Async. request with given xfer structure. 291 */ 292 static void 293 fw_asystart(struct fw_xfer *xfer) 294 { 295 struct firewire_comm *fc = xfer->fc; 296 int s; 297 if(xfer->retry++ >= fc->max_asyretry){ 298 device_printf(fc->bdev, "max_asyretry exceeded\n"); 299 xfer->resp = EBUSY; 300 xfer->state = FWXF_BUSY; 301 xfer->act.hand(xfer); 302 return; 303 } 304 #if 0 /* XXX allow bus explore packets only after bus rest */ 305 if (fc->status < FWBUSEXPLORE) { 306 xfer->resp = EAGAIN; 307 xfer->state = FWXF_BUSY; 308 if (xfer->act.hand != NULL) 309 xfer->act.hand(xfer); 310 return; 311 } 312 #endif 313 s = splfw(); 314 xfer->state = FWXF_INQ; 315 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 316 xfer->q->queued ++; 317 splx(s); 318 /* XXX just queue for mbuf */ 319 if (xfer->mbuf == NULL) 320 xfer->q->start(fc); 321 return; 322 } 323 324 static void 325 firewire_identify(driver_t *driver, device_t parent) 326 { 327 BUS_ADD_CHILD(parent, 0, "firewire", -1); 328 } 329 330 static int 331 firewire_probe(device_t dev) 332 { 333 device_set_desc(dev, "IEEE1394(FireWire) bus"); 334 return (0); 335 } 336 337 static void 338 firewire_xfer_timeout(struct firewire_comm *fc) 339 { 340 struct fw_xfer *xfer; 341 struct tlabel *tl; 342 struct timeval tv; 343 struct timeval split_timeout; 344 int i, s; 345 346 split_timeout.tv_sec = 0; 347 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 348 349 microtime(&tv); 350 timevalsub(&tv, &split_timeout); 351 352 s = splfw(); 353 for (i = 0; i < 0x40; i ++) { 354 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 355 xfer = tl->xfer; 356 if (timevalcmp(&xfer->tv, &tv, >)) 357 /* the rests are newer than this */ 358 break; 359 if (xfer->state == FWXF_START) 360 /* not sent yet */ 361 break; 362 device_printf(fc->bdev, 363 "split transaction timeout dst=0x%x tl=0x%x state=%d\n", 364 xfer->send.hdr.mode.hdr.dst, i, xfer->state); 365 xfer->resp = ETIMEDOUT; 366 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 367 fw_xfer_done(xfer); 368 } 369 } 370 splx(s); 371 } 372 373 #define WATCHDOC_HZ 10 374 static void 375 firewire_watchdog(void *arg) 376 { 377 struct firewire_comm *fc; 378 static int watchdoc_clock = 0; 379 380 fc = (struct firewire_comm *)arg; 381 382 /* 383 * At boot stage, the device interrupt is disabled and 384 * We encounter a timeout easily. To avoid this, 385 * ignore clock interrupt for a while. 386 */ 387 if (watchdoc_clock > WATCHDOC_HZ * 15) { 388 firewire_xfer_timeout(fc); 389 fc->timeout(fc); 390 } else 391 watchdoc_clock ++; 392 393 callout_reset(&fc->timeout_callout, hz / WATCHDOC_HZ, 394 (void *)firewire_watchdog, (void *)fc); 395 } 396 397 /* 398 * The attach routine. 399 */ 400 static int 401 firewire_attach(device_t dev) 402 { 403 int unit; 404 struct firewire_softc *sc = device_get_softc(dev); 405 device_t pa = device_get_parent(dev); 406 struct firewire_comm *fc; 407 408 fc = (struct firewire_comm *)device_get_softc(pa); 409 sc->fc = fc; 410 fc->status = FWBUSNOTREADY; 411 412 unit = device_get_unit(dev); 413 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 414 415 fwdev_makedev(sc); 416 417 CALLOUT_INIT(&sc->fc->timeout_callout); 418 CALLOUT_INIT(&sc->fc->bmr_callout); 419 CALLOUT_INIT(&sc->fc->retry_probe_callout); 420 CALLOUT_INIT(&sc->fc->busprobe_callout); 421 422 callout_reset(&sc->fc->timeout_callout, hz, 423 (void *)firewire_watchdog, (void *)sc->fc); 424 425 /* Locate our children */ 426 bus_generic_probe(dev); 427 428 /* launch attachement of the added children */ 429 bus_generic_attach(dev); 430 431 /* bus_reset */ 432 fw_busreset(fc); 433 fc->ibr(fc); 434 435 return 0; 436 } 437 438 /* 439 * Attach it as child. 440 */ 441 static device_t 442 firewire_add_child(device_t dev, int order, const char *name, int unit) 443 { 444 device_t child; 445 struct firewire_softc *sc; 446 447 sc = (struct firewire_softc *)device_get_softc(dev); 448 child = device_add_child(dev, name, unit); 449 if (child) { 450 device_set_ivars(child, sc->fc); 451 device_probe_and_attach(child); 452 } 453 454 return child; 455 } 456 457 static int 458 firewire_resume(device_t dev) 459 { 460 struct firewire_softc *sc; 461 462 sc = (struct firewire_softc *)device_get_softc(dev); 463 sc->fc->status = FWBUSNOTREADY; 464 465 bus_generic_resume(dev); 466 467 return(0); 468 } 469 470 /* 471 * Dettach it. 472 */ 473 static int 474 firewire_detach(device_t dev) 475 { 476 struct firewire_softc *sc; 477 struct csrdir *csrd, *next; 478 struct fw_device *fwdev, *fwdev_next; 479 int err; 480 481 sc = (struct firewire_softc *)device_get_softc(dev); 482 if ((err = fwdev_destroydev(sc)) != 0) 483 return err; 484 485 if ((err = bus_generic_detach(dev)) != 0) 486 return err; 487 488 callout_stop(&sc->fc->timeout_callout); 489 callout_stop(&sc->fc->bmr_callout); 490 callout_stop(&sc->fc->retry_probe_callout); 491 callout_stop(&sc->fc->busprobe_callout); 492 493 /* XXX xfree_free and untimeout on all xfers */ 494 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 495 fwdev = fwdev_next) { 496 fwdev_next = STAILQ_NEXT(fwdev, link); 497 free(fwdev, M_FW); 498 } 499 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 500 next = SLIST_NEXT(csrd, link); 501 free(csrd, M_FW); 502 } 503 free(sc->fc->topology_map, M_FW); 504 free(sc->fc->speed_map, M_FW); 505 free(sc->fc->crom_src_buf, M_FW); 506 return(0); 507 } 508 #if 0 509 static int 510 firewire_shutdown( device_t dev ) 511 { 512 return 0; 513 } 514 #endif 515 516 517 static void 518 fw_xferq_drain(struct fw_xferq *xferq) 519 { 520 struct fw_xfer *xfer; 521 522 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 523 STAILQ_REMOVE_HEAD(&xferq->q, link); 524 xferq->queued --; 525 xfer->resp = EAGAIN; 526 fw_xfer_done(xfer); 527 } 528 } 529 530 void 531 fw_drain_txq(struct firewire_comm *fc) 532 { 533 int i; 534 535 fw_xferq_drain(fc->atq); 536 fw_xferq_drain(fc->ats); 537 for(i = 0; i < fc->nisodma; i++) 538 fw_xferq_drain(fc->it[i]); 539 } 540 541 static void 542 fw_reset_csr(struct firewire_comm *fc) 543 { 544 int i; 545 546 CSRARC(fc, STATE_CLEAR) 547 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 548 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 549 CSRARC(fc, NODE_IDS) = 0x3f; 550 551 CSRARC(fc, TOPO_MAP + 8) = 0; 552 fc->irm = -1; 553 554 fc->max_node = -1; 555 556 for(i = 2; i < 0x100/4 - 2 ; i++){ 557 CSRARC(fc, SPED_MAP + i * 4) = 0; 558 } 559 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 560 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 561 CSRARC(fc, RESET_START) = 0; 562 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 563 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 564 CSRARC(fc, CYCLE_TIME) = 0x0; 565 CSRARC(fc, BUS_TIME) = 0x0; 566 CSRARC(fc, BUS_MGR_ID) = 0x3f; 567 CSRARC(fc, BANDWIDTH_AV) = 4915; 568 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 569 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 570 CSRARC(fc, IP_CHANNELS) = (1 << 31); 571 572 CSRARC(fc, CONF_ROM) = 0x04 << 24; 573 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 574 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 575 1 << 28 | 0xff << 16 | 0x09 << 8; 576 CSRARC(fc, CONF_ROM + 0xc) = 0; 577 578 /* DV depend CSRs see blue book */ 579 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 580 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 581 582 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 583 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 584 } 585 586 static void 587 fw_init_crom(struct firewire_comm *fc) 588 { 589 struct crom_src *src; 590 591 fc->crom_src_buf = (struct crom_src_buf *) 592 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 593 if (fc->crom_src_buf == NULL) 594 return; 595 596 src = &fc->crom_src_buf->src; 597 bzero(src, sizeof(struct crom_src)); 598 599 /* BUS info sample */ 600 src->hdr.info_len = 4; 601 602 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 603 604 src->businfo.irmc = 1; 605 src->businfo.cmc = 1; 606 src->businfo.isc = 1; 607 src->businfo.bmc = 1; 608 src->businfo.pmc = 0; 609 src->businfo.cyc_clk_acc = 100; 610 src->businfo.max_rec = fc->maxrec; 611 src->businfo.max_rom = MAXROM_4; 612 src->businfo.generation = 1; 613 src->businfo.link_spd = fc->speed; 614 615 src->businfo.eui64.hi = fc->eui.hi; 616 src->businfo.eui64.lo = fc->eui.lo; 617 618 STAILQ_INIT(&src->chunk_list); 619 620 fc->crom_src = src; 621 fc->crom_root = &fc->crom_src_buf->root; 622 } 623 624 static void 625 fw_reset_crom(struct firewire_comm *fc) 626 { 627 struct crom_src_buf *buf; 628 struct crom_src *src; 629 struct crom_chunk *root; 630 631 if (fc->crom_src_buf == NULL) 632 fw_init_crom(fc); 633 634 buf = fc->crom_src_buf; 635 src = fc->crom_src; 636 root = fc->crom_root; 637 638 STAILQ_INIT(&src->chunk_list); 639 640 bzero(root, sizeof(struct crom_chunk)); 641 crom_add_chunk(src, NULL, root, 0); 642 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 643 /* private company_id */ 644 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 645 #ifdef __DragonFly__ 646 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 647 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version); 648 #else 649 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 650 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 651 #endif 652 crom_add_simple_text(src, root, &buf->hw, hostname); 653 } 654 655 /* 656 * Called after bus reset. 657 */ 658 void 659 fw_busreset(struct firewire_comm *fc) 660 { 661 struct firewire_dev_comm *fdc; 662 struct crom_src *src; 663 device_t *devlistp; 664 void *newrom; 665 int i, devcnt; 666 667 switch(fc->status){ 668 case FWBUSMGRELECT: 669 callout_stop(&fc->bmr_callout); 670 break; 671 default: 672 break; 673 } 674 fc->status = FWBUSRESET; 675 fw_reset_csr(fc); 676 fw_reset_crom(fc); 677 678 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 679 for( i = 0 ; i < devcnt ; i++) 680 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 681 fdc = device_get_softc(devlistp[i]); 682 if (fdc->post_busreset != NULL) 683 fdc->post_busreset(fdc); 684 } 685 free(devlistp, M_TEMP); 686 } 687 688 newrom = malloc(CROMSIZE, M_FW, M_WAITOK | M_ZERO); 689 src = &fc->crom_src_buf->src; 690 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 691 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 692 /* bump generation and reload */ 693 src->businfo.generation ++; 694 /* generation must be between 0x2 and 0xF */ 695 if (src->businfo.generation < 2) 696 src->businfo.generation ++; 697 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 698 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 699 } 700 free(newrom, M_FW); 701 } 702 703 /* Call once after reboot */ 704 void fw_init(struct firewire_comm *fc) 705 { 706 int i; 707 struct csrdir *csrd; 708 #ifdef FW_VMACCESS 709 struct fw_xfer *xfer; 710 struct fw_bind *fwb; 711 #endif 712 713 fc->max_asyretry = FW_MAXASYRTY; 714 715 fc->arq->queued = 0; 716 fc->ars->queued = 0; 717 fc->atq->queued = 0; 718 fc->ats->queued = 0; 719 720 fc->arq->buf = NULL; 721 fc->ars->buf = NULL; 722 fc->atq->buf = NULL; 723 fc->ats->buf = NULL; 724 725 fc->arq->flag = 0; 726 fc->ars->flag = 0; 727 fc->atq->flag = 0; 728 fc->ats->flag = 0; 729 730 STAILQ_INIT(&fc->atq->q); 731 STAILQ_INIT(&fc->ats->q); 732 733 for( i = 0 ; i < fc->nisodma ; i ++ ){ 734 fc->it[i]->queued = 0; 735 fc->ir[i]->queued = 0; 736 737 fc->it[i]->start = NULL; 738 fc->ir[i]->start = NULL; 739 740 fc->it[i]->buf = NULL; 741 fc->ir[i]->buf = NULL; 742 743 fc->it[i]->flag = FWXFERQ_STREAM; 744 fc->ir[i]->flag = FWXFERQ_STREAM; 745 746 STAILQ_INIT(&fc->it[i]->q); 747 STAILQ_INIT(&fc->ir[i]->q); 748 749 STAILQ_INIT(&fc->it[i]->binds); 750 STAILQ_INIT(&fc->ir[i]->binds); 751 } 752 753 fc->arq->maxq = FWMAXQUEUE; 754 fc->ars->maxq = FWMAXQUEUE; 755 fc->atq->maxq = FWMAXQUEUE; 756 fc->ats->maxq = FWMAXQUEUE; 757 758 for( i = 0 ; i < fc->nisodma ; i++){ 759 fc->ir[i]->maxq = FWMAXQUEUE; 760 fc->it[i]->maxq = FWMAXQUEUE; 761 } 762 /* Initialize csr registers */ 763 fc->topology_map = malloc(sizeof(struct fw_topology_map), 764 M_FW, M_WAITOK | M_ZERO); 765 fc->speed_map = malloc(sizeof(struct fw_speed_map), 766 M_FW, M_WAITOK | M_ZERO); 767 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 768 CSRARC(fc, TOPO_MAP + 4) = 1; 769 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 770 CSRARC(fc, SPED_MAP + 4) = 1; 771 772 STAILQ_INIT(&fc->devices); 773 774 /* Initialize csr ROM work space */ 775 SLIST_INIT(&fc->ongocsr); 776 SLIST_INIT(&fc->csrfree); 777 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 778 csrd = malloc(sizeof(struct csrdir), M_FW, M_WAITOK); 779 if(csrd == NULL) break; 780 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 781 } 782 783 /* Initialize Async handlers */ 784 STAILQ_INIT(&fc->binds); 785 for( i = 0 ; i < 0x40 ; i++){ 786 STAILQ_INIT(&fc->tlabels[i]); 787 } 788 789 /* DV depend CSRs see blue book */ 790 #if 0 791 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 792 CSRARC(fc, oPCR) = 0x8000007a; 793 for(i = 4 ; i < 0x7c/4 ; i+=4){ 794 CSRARC(fc, i + oPCR) = 0x8000007a; 795 } 796 797 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 798 CSRARC(fc, iPCR) = 0x803f0000; 799 for(i = 4 ; i < 0x7c/4 ; i+=4){ 800 CSRARC(fc, i + iPCR) = 0x0; 801 } 802 #endif 803 804 fc->crom_src_buf = NULL; 805 806 #ifdef FW_VMACCESS 807 xfer = fw_xfer_alloc(); 808 if(xfer == NULL) return; 809 810 fwb = malloc(sizeof (struct fw_bind), M_FW, M_WAITOK); 811 xfer->act.hand = fw_vmaccess; 812 xfer->fc = fc; 813 xfer->sc = NULL; 814 815 fwb->start_hi = 0x2; 816 fwb->start_lo = 0; 817 fwb->addrlen = 0xffffffff; 818 fwb->xfer = xfer; 819 fw_bindadd(fc, fwb); 820 #endif 821 } 822 823 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 824 ((fwb)->end < (addr))?1:0) 825 826 /* 827 * To lookup binded process from IEEE1394 address. 828 */ 829 struct fw_bind * 830 fw_bindlookup(struct firewire_comm *fc, u_int16_t dest_hi, u_int32_t dest_lo) 831 { 832 u_int64_t addr; 833 struct fw_bind *tfw; 834 835 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 836 STAILQ_FOREACH(tfw, &fc->binds, fclist) 837 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0) 838 return(tfw); 839 return(NULL); 840 } 841 842 /* 843 * To bind IEEE1394 address block to process. 844 */ 845 int 846 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 847 { 848 struct fw_bind *tfw, *prev = NULL; 849 850 if (fwb->start > fwb->end) { 851 printf("%s: invalid range\n", __FUNCTION__); 852 return EINVAL; 853 } 854 855 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 856 if (fwb->end < tfw->start) 857 break; 858 prev = tfw; 859 } 860 if (prev == NULL) { 861 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 862 goto out; 863 } 864 if (prev->end < fwb->start) { 865 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 866 goto out; 867 } 868 869 printf("%s: bind failed\n", __FUNCTION__); 870 return (EBUSY); 871 872 out: 873 if (fwb->act_type == FWACT_CH) 874 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 875 return (0); 876 } 877 878 /* 879 * To free IEEE1394 address block. 880 */ 881 int 882 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 883 { 884 #if 0 885 struct fw_xfer *xfer, *next; 886 #endif 887 struct fw_bind *tfw; 888 int s; 889 890 s = splfw(); 891 STAILQ_FOREACH(tfw, &fc->binds, fclist) 892 if (tfw == fwb) { 893 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 894 goto found; 895 } 896 897 printf("%s: no such bind\n", __FUNCTION__); 898 splx(s); 899 return (1); 900 found: 901 #if 0 902 /* shall we do this? */ 903 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 904 next = STAILQ_NEXT(xfer, link); 905 fw_xfer_free(xfer); 906 } 907 STAILQ_INIT(&fwb->xferlist); 908 #endif 909 910 splx(s); 911 return 0; 912 } 913 914 /* 915 * To free transaction label. 916 */ 917 static void 918 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 919 { 920 struct tlabel *tl; 921 int s = splfw(); 922 923 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 924 tl = STAILQ_NEXT(tl, link)){ 925 if(tl->xfer == xfer){ 926 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 927 free(tl, M_FW); 928 splx(s); 929 return; 930 } 931 } 932 splx(s); 933 return; 934 } 935 936 /* 937 * To obtain XFER structure by transaction label. 938 */ 939 static struct fw_xfer * 940 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 941 { 942 struct fw_xfer *xfer; 943 struct tlabel *tl; 944 int s = splfw(); 945 946 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 947 tl = STAILQ_NEXT(tl, link)){ 948 if(tl->xfer->send.hdr.mode.hdr.dst == node){ 949 xfer = tl->xfer; 950 splx(s); 951 if (firewire_debug > 2) 952 printf("fw_tl2xfer: found tl=%d\n", tlabel); 953 return(xfer); 954 } 955 } 956 if (firewire_debug > 1) 957 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 958 splx(s); 959 return(NULL); 960 } 961 962 /* 963 * To allocate IEEE1394 XFER structure. 964 */ 965 struct fw_xfer * 966 fw_xfer_alloc(struct malloc_type *type) 967 { 968 struct fw_xfer *xfer; 969 970 xfer = malloc(sizeof(struct fw_xfer), type, M_INTWAIT | M_ZERO); 971 xfer->malloc = type; 972 973 return xfer; 974 } 975 976 struct fw_xfer * 977 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 978 { 979 struct fw_xfer *xfer; 980 981 xfer = fw_xfer_alloc(type); 982 xfer->send.pay_len = send_len; 983 xfer->recv.pay_len = recv_len; 984 if (xfer == NULL) 985 return(NULL); 986 if (send_len > 0) { 987 xfer->send.payload = malloc(send_len, type, M_INTWAIT | M_ZERO); 988 if (xfer->send.payload == NULL) { 989 fw_xfer_free(xfer); 990 return(NULL); 991 } 992 } 993 if (recv_len > 0) { 994 xfer->recv.payload = malloc(recv_len, type, M_INTWAIT); 995 if (xfer->recv.payload == NULL) { 996 if (xfer->send.payload != NULL) 997 free(xfer->send.payload, type); 998 fw_xfer_free(xfer); 999 return(NULL); 1000 } 1001 } 1002 return(xfer); 1003 } 1004 1005 /* 1006 * IEEE1394 XFER post process. 1007 */ 1008 void 1009 fw_xfer_done(struct fw_xfer *xfer) 1010 { 1011 if (xfer->act.hand == NULL) { 1012 printf("act.hand == NULL\n"); 1013 return; 1014 } 1015 1016 if (xfer->fc == NULL) 1017 panic("fw_xfer_done: why xfer->fc is NULL?"); 1018 1019 xfer->act.hand(xfer); 1020 } 1021 1022 void 1023 fw_xfer_unload(struct fw_xfer* xfer) 1024 { 1025 int s; 1026 1027 if(xfer == NULL ) return; 1028 if(xfer->state == FWXF_INQ){ 1029 printf("fw_xfer_free FWXF_INQ\n"); 1030 s = splfw(); 1031 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1032 xfer->q->queued --; 1033 splx(s); 1034 } 1035 if (xfer->fc != NULL) { 1036 #if 1 1037 if(xfer->state == FWXF_START) 1038 /* 1039 * This could happen if: 1040 * 1. We call fwohci_arcv() before fwohci_txd(). 1041 * 2. firewire_watch() is called. 1042 */ 1043 printf("fw_xfer_free FWXF_START\n"); 1044 #endif 1045 fw_tl_free(xfer->fc, xfer); 1046 } 1047 xfer->state = FWXF_INIT; 1048 xfer->resp = 0; 1049 xfer->retry = 0; 1050 } 1051 /* 1052 * To free IEEE1394 XFER structure. 1053 */ 1054 void 1055 fw_xfer_free_buf( struct fw_xfer* xfer) 1056 { 1057 if (xfer == NULL) { 1058 printf("%s: xfer == NULL\n", __FUNCTION__); 1059 return; 1060 } 1061 fw_xfer_unload(xfer); 1062 if(xfer->send.payload != NULL){ 1063 free(xfer->send.payload, xfer->malloc); 1064 } 1065 if(xfer->recv.payload != NULL){ 1066 free(xfer->recv.payload, xfer->malloc); 1067 } 1068 free(xfer, xfer->malloc); 1069 } 1070 1071 void 1072 fw_xfer_free( struct fw_xfer* xfer) 1073 { 1074 if (xfer == NULL) { 1075 printf("%s: xfer == NULL\n", __FUNCTION__); 1076 return; 1077 } 1078 fw_xfer_unload(xfer); 1079 free(xfer, xfer->malloc); 1080 } 1081 1082 void 1083 fw_asy_callback_free(struct fw_xfer *xfer) 1084 { 1085 #if 0 1086 printf("asyreq done state=%d resp=%d\n", 1087 xfer->state, xfer->resp); 1088 #endif 1089 fw_xfer_free(xfer); 1090 } 1091 1092 /* 1093 * To configure PHY. 1094 */ 1095 static void 1096 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1097 { 1098 struct fw_xfer *xfer; 1099 struct fw_pkt *fp; 1100 1101 fc->status = FWBUSPHYCONF; 1102 1103 xfer = fw_xfer_alloc(M_FWXFER); 1104 if (xfer == NULL) 1105 return; 1106 xfer->fc = fc; 1107 xfer->retry_req = fw_asybusy; 1108 xfer->act.hand = fw_asy_callback_free; 1109 1110 fp = &xfer->send.hdr; 1111 fp->mode.ld[1] = 0; 1112 if (root_node >= 0) 1113 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1114 if (gap_count >= 0) 1115 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1116 fp->mode.ld[2] = ~fp->mode.ld[1]; 1117 /* XXX Dangerous, how to pass PHY packet to device driver */ 1118 fp->mode.common.tcode |= FWTCODE_PHY; 1119 1120 if (firewire_debug) 1121 printf("send phy_config root_node=%d gap_count=%d\n", 1122 root_node, gap_count); 1123 fw_asyreq(fc, -1, xfer); 1124 } 1125 1126 #if 0 1127 /* 1128 * Dump self ID. 1129 */ 1130 static void 1131 fw_print_sid(u_int32_t sid) 1132 { 1133 union fw_self_id *s; 1134 s = (union fw_self_id *) &sid; 1135 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1136 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1137 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1138 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1139 s->p0.power_class, s->p0.port0, s->p0.port1, 1140 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1141 } 1142 #endif 1143 1144 /* 1145 * To receive self ID. 1146 */ 1147 void fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) 1148 { 1149 u_int32_t *p; 1150 union fw_self_id *self_id; 1151 u_int i, j, node, c_port = 0, i_branch = 0; 1152 1153 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1154 fc->status = FWBUSINIT; 1155 fc->max_node = fc->nodeid & 0x3f; 1156 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1157 fc->status = FWBUSCYMELECT; 1158 fc->topology_map->crc_len = 2; 1159 fc->topology_map->generation ++; 1160 fc->topology_map->self_id_count = 0; 1161 fc->topology_map->node_count = 0; 1162 fc->speed_map->generation ++; 1163 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1164 self_id = &fc->topology_map->self_id[0]; 1165 for(i = 0; i < fc->sid_cnt; i ++){ 1166 if (sid[1] != ~sid[0]) { 1167 printf("fw_sidrcv: invalid self-id packet\n"); 1168 sid += 2; 1169 continue; 1170 } 1171 *self_id = *((union fw_self_id *)sid); 1172 fc->topology_map->crc_len++; 1173 if(self_id->p0.sequel == 0){ 1174 fc->topology_map->node_count ++; 1175 c_port = 0; 1176 #if 0 1177 fw_print_sid(sid[0]); 1178 #endif 1179 node = self_id->p0.phy_id; 1180 if(fc->max_node < node){ 1181 fc->max_node = self_id->p0.phy_id; 1182 } 1183 /* XXX I'm not sure this is the right speed_map */ 1184 fc->speed_map->speed[node][node] 1185 = self_id->p0.phy_speed; 1186 for (j = 0; j < node; j ++) { 1187 fc->speed_map->speed[j][node] 1188 = fc->speed_map->speed[node][j] 1189 = min(fc->speed_map->speed[j][j], 1190 self_id->p0.phy_speed); 1191 } 1192 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1193 (self_id->p0.link_active && self_id->p0.contender)) { 1194 fc->irm = self_id->p0.phy_id; 1195 } 1196 if(self_id->p0.port0 >= 0x2){ 1197 c_port++; 1198 } 1199 if(self_id->p0.port1 >= 0x2){ 1200 c_port++; 1201 } 1202 if(self_id->p0.port2 >= 0x2){ 1203 c_port++; 1204 } 1205 } 1206 if(c_port > 2){ 1207 i_branch += (c_port - 2); 1208 } 1209 sid += 2; 1210 self_id++; 1211 fc->topology_map->self_id_count ++; 1212 } 1213 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1214 /* CRC */ 1215 fc->topology_map->crc = fw_crc16( 1216 (u_int32_t *)&fc->topology_map->generation, 1217 fc->topology_map->crc_len * 4); 1218 fc->speed_map->crc = fw_crc16( 1219 (u_int32_t *)&fc->speed_map->generation, 1220 fc->speed_map->crc_len * 4); 1221 /* byteswap and copy to CSR */ 1222 p = (u_int32_t *)fc->topology_map; 1223 for (i = 0; i <= fc->topology_map->crc_len; i++) 1224 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1225 p = (u_int32_t *)fc->speed_map; 1226 CSRARC(fc, SPED_MAP) = htonl(*p++); 1227 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1228 /* don't byte-swap u_int8_t array */ 1229 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1230 1231 fc->max_hop = fc->max_node - i_branch; 1232 printf(", maxhop <= %d", fc->max_hop); 1233 1234 if(fc->irm == -1 ){ 1235 printf(", Not found IRM capable node"); 1236 }else{ 1237 printf(", cable IRM = %d", fc->irm); 1238 if (fc->irm == fc->nodeid) 1239 printf(" (me)"); 1240 } 1241 printf("\n"); 1242 1243 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1244 if (fc->irm == fc->nodeid) { 1245 fc->status = FWBUSMGRDONE; 1246 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1247 fw_bmr(fc); 1248 } else { 1249 fc->status = FWBUSMGRELECT; 1250 callout_reset(&fc->bmr_callout, hz/8, 1251 (void *)fw_try_bmr, (void *)fc); 1252 } 1253 } else 1254 fc->status = FWBUSMGRDONE; 1255 1256 callout_reset(&fc->busprobe_callout, hz/4, 1257 (void *)fw_bus_probe, (void *)fc); 1258 } 1259 1260 /* 1261 * To probe devices on the IEEE1394 bus. 1262 */ 1263 static void 1264 fw_bus_probe(struct firewire_comm *fc) 1265 { 1266 int s; 1267 struct fw_device *fwdev; 1268 1269 s = splfw(); 1270 fc->status = FWBUSEXPLORE; 1271 fc->retry_count = 0; 1272 1273 /* Invalidate all devices, just after bus reset. */ 1274 STAILQ_FOREACH(fwdev, &fc->devices, link) 1275 if (fwdev->status != FWDEVINVAL) { 1276 fwdev->status = FWDEVINVAL; 1277 fwdev->rcnt = 0; 1278 } 1279 1280 fc->ongonode = 0; 1281 fc->ongoaddr = CSRROMOFF; 1282 fc->ongodev = NULL; 1283 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1284 fw_bus_explore(fc); 1285 splx(s); 1286 } 1287 1288 /* 1289 * To collect device informations on the IEEE1394 bus. 1290 */ 1291 static void 1292 fw_bus_explore(struct firewire_comm *fc ) 1293 { 1294 int err = 0; 1295 struct fw_device *fwdev, *pfwdev, *tfwdev; 1296 u_int32_t addr; 1297 struct fw_xfer *xfer; 1298 struct fw_pkt *fp; 1299 1300 if(fc->status != FWBUSEXPLORE) 1301 return; 1302 1303 loop: 1304 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1305 1306 if(fc->ongonode > fc->max_node) goto done; 1307 if(fc->ongonode >= 0x3f) goto done; 1308 1309 /* check link */ 1310 /* XXX we need to check phy_id first */ 1311 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1312 if (firewire_debug) 1313 printf("node%d: link down\n", fc->ongonode); 1314 fc->ongonode++; 1315 goto loop; 1316 } 1317 1318 if(fc->ongoaddr <= CSRROMOFF && 1319 fc->ongoeui.hi == 0xffffffff && 1320 fc->ongoeui.lo == 0xffffffff ){ 1321 fc->ongoaddr = CSRROMOFF; 1322 addr = 0xf0000000 | fc->ongoaddr; 1323 }else if(fc->ongoeui.hi == 0xffffffff ){ 1324 fc->ongoaddr = CSRROMOFF + 0xc; 1325 addr = 0xf0000000 | fc->ongoaddr; 1326 }else if(fc->ongoeui.lo == 0xffffffff ){ 1327 fc->ongoaddr = CSRROMOFF + 0x10; 1328 addr = 0xf0000000 | fc->ongoaddr; 1329 }else if(fc->ongodev == NULL){ 1330 STAILQ_FOREACH(fwdev, &fc->devices, link) 1331 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1332 break; 1333 if(fwdev != NULL){ 1334 fwdev->dst = fc->ongonode; 1335 fwdev->status = FWDEVINIT; 1336 fc->ongodev = fwdev; 1337 fc->ongoaddr = CSRROMOFF; 1338 addr = 0xf0000000 | fc->ongoaddr; 1339 goto dorequest; 1340 } 1341 fwdev = malloc(sizeof(struct fw_device), M_FW, 1342 M_WAITOK | M_ZERO); 1343 fwdev->fc = fc; 1344 fwdev->rommax = 0; 1345 fwdev->dst = fc->ongonode; 1346 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1347 fwdev->status = FWDEVINIT; 1348 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1349 1350 pfwdev = NULL; 1351 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1352 if (tfwdev->eui.hi > fwdev->eui.hi || 1353 (tfwdev->eui.hi == fwdev->eui.hi && 1354 tfwdev->eui.lo > fwdev->eui.lo)) 1355 break; 1356 pfwdev = tfwdev; 1357 } 1358 if (pfwdev == NULL) 1359 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1360 else 1361 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1362 1363 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1364 linkspeed[fwdev->speed], 1365 fc->ongoeui.hi, fc->ongoeui.lo); 1366 1367 fc->ongodev = fwdev; 1368 fc->ongoaddr = CSRROMOFF; 1369 addr = 0xf0000000 | fc->ongoaddr; 1370 }else{ 1371 addr = 0xf0000000 | fc->ongoaddr; 1372 } 1373 dorequest: 1374 #if 0 1375 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1376 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1377 fw_bus_explore_callback); 1378 if(xfer == NULL) goto done; 1379 #else 1380 xfer = fw_xfer_alloc(M_FWXFER); 1381 if(xfer == NULL){ 1382 goto done; 1383 } 1384 xfer->send.spd = 0; 1385 fp = &xfer->send.hdr; 1386 fp->mode.rreqq.dest_hi = 0xffff; 1387 fp->mode.rreqq.tlrt = 0; 1388 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1389 fp->mode.rreqq.pri = 0; 1390 fp->mode.rreqq.src = 0; 1391 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode; 1392 fp->mode.rreqq.dest_lo = addr; 1393 xfer->act.hand = fw_bus_explore_callback; 1394 1395 if (firewire_debug) 1396 printf("node%d: explore addr=0x%x\n", 1397 fc->ongonode, fc->ongoaddr); 1398 err = fw_asyreq(fc, -1, xfer); 1399 if(err){ 1400 fw_xfer_free( xfer); 1401 return; 1402 } 1403 #endif 1404 return; 1405 done: 1406 /* fw_attach_devs */ 1407 fc->status = FWBUSEXPDONE; 1408 if (firewire_debug) 1409 printf("bus_explore done\n"); 1410 fw_attach_dev(fc); 1411 return; 1412 1413 } 1414 1415 /* Portable Async. request read quad */ 1416 struct fw_xfer * 1417 asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1418 u_int32_t addr_hi, u_int32_t addr_lo, 1419 void (*hand) (struct fw_xfer*)) 1420 { 1421 struct fw_xfer *xfer; 1422 struct fw_pkt *fp; 1423 int err; 1424 1425 xfer = fw_xfer_alloc(M_FWXFER); 1426 if (xfer == NULL) 1427 return NULL; 1428 1429 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */ 1430 fp = &xfer->send.hdr; 1431 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1432 if(tl & FWP_TL_VALID){ 1433 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1434 }else{ 1435 fp->mode.rreqq.tlrt = 0; 1436 } 1437 fp->mode.rreqq.tlrt |= rt & 0x3; 1438 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1439 fp->mode.rreqq.pri = 0; 1440 fp->mode.rreqq.src = 0; 1441 fp->mode.rreqq.dst = addr_hi >> 16; 1442 fp->mode.rreqq.dest_lo = addr_lo; 1443 xfer->act.hand = hand; 1444 1445 err = fw_asyreq(fc, -1, xfer); 1446 if(err){ 1447 fw_xfer_free( xfer); 1448 return NULL; 1449 } 1450 return xfer; 1451 } 1452 1453 /* 1454 * Callback for the IEEE1394 bus information collection. 1455 */ 1456 static void 1457 fw_bus_explore_callback(struct fw_xfer *xfer) 1458 { 1459 struct firewire_comm *fc; 1460 struct fw_pkt *sfp,*rfp; 1461 struct csrhdr *chdr; 1462 struct csrdir *csrd; 1463 struct csrreg *csrreg; 1464 u_int32_t offset; 1465 1466 1467 if(xfer == NULL) { 1468 printf("xfer == NULL\n"); 1469 return; 1470 } 1471 fc = xfer->fc; 1472 1473 if (firewire_debug) 1474 printf("node%d: callback addr=0x%x\n", 1475 fc->ongonode, fc->ongoaddr); 1476 1477 if(xfer->resp != 0){ 1478 printf("node%d: resp=%d addr=0x%x\n", 1479 fc->ongonode, xfer->resp, fc->ongoaddr); 1480 goto errnode; 1481 } 1482 1483 sfp = &xfer->send.hdr; 1484 rfp = &xfer->recv.hdr; 1485 #if 0 1486 { 1487 u_int32_t *qld; 1488 int i; 1489 qld = (u_int32_t *)xfer->recv.buf; 1490 printf("len:%d\n", xfer->recv.len); 1491 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1492 printf("0x%08x ", rfp->mode.ld[i/4]); 1493 if((i % 16) == 15) printf("\n"); 1494 } 1495 if((i % 16) != 15) printf("\n"); 1496 } 1497 #endif 1498 if(fc->ongodev == NULL){ 1499 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1500 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1501 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1502 /* If CSR is minimal confinguration, more investgation is not needed. */ 1503 if(chdr->info_len == 1){ 1504 if (firewire_debug) 1505 printf("node%d: minimal config\n", 1506 fc->ongonode); 1507 goto nextnode; 1508 }else{ 1509 fc->ongoaddr = CSRROMOFF + 0xc; 1510 } 1511 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1512 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1513 fc->ongoaddr = CSRROMOFF + 0x10; 1514 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1515 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1516 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1517 if (firewire_debug) 1518 printf("node%d: eui64 is zero.\n", 1519 fc->ongonode); 1520 goto nextnode; 1521 } 1522 fc->ongoaddr = CSRROMOFF; 1523 } 1524 }else{ 1525 if (fc->ongoaddr == CSRROMOFF && 1526 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1527 fc->ongodev->status = FWDEVATTACHED; 1528 goto nextnode; 1529 } 1530 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1531 if(fc->ongoaddr > fc->ongodev->rommax){ 1532 fc->ongodev->rommax = fc->ongoaddr; 1533 } 1534 csrd = SLIST_FIRST(&fc->ongocsr); 1535 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1536 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1537 offset = CSRROMOFF; 1538 }else{ 1539 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1540 offset = csrd->off; 1541 } 1542 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1543 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1544 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1545 csrd = SLIST_FIRST(&fc->csrfree); 1546 if(csrd == NULL){ 1547 goto nextnode; 1548 }else{ 1549 csrd->ongoaddr = fc->ongoaddr; 1550 fc->ongoaddr += csrreg->val * 4; 1551 csrd->off = fc->ongoaddr; 1552 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1553 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1554 goto nextaddr; 1555 } 1556 } 1557 } 1558 fc->ongoaddr += 4; 1559 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1560 (fc->ongodev->rommax < 0x414)){ 1561 if(fc->ongodev->rommax <= 0x414){ 1562 csrd = SLIST_FIRST(&fc->csrfree); 1563 if(csrd == NULL) goto nextnode; 1564 csrd->off = fc->ongoaddr; 1565 csrd->ongoaddr = fc->ongoaddr; 1566 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1567 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1568 } 1569 goto nextaddr; 1570 } 1571 1572 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1573 if(csrd == NULL){ 1574 goto nextnode; 1575 }; 1576 fc->ongoaddr = csrd->ongoaddr + 4; 1577 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1578 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1579 csrd = SLIST_FIRST(&fc->ongocsr); 1580 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1581 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1582 offset = CSRROMOFF; 1583 }else{ 1584 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1585 offset = csrd->off; 1586 } 1587 } 1588 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1589 goto nextnode; 1590 } 1591 } 1592 nextaddr: 1593 fw_xfer_free( xfer); 1594 fw_bus_explore(fc); 1595 return; 1596 errnode: 1597 fc->retry_count++; 1598 if (fc->ongodev != NULL) 1599 fc->ongodev->status = FWDEVINVAL; 1600 nextnode: 1601 fw_xfer_free( xfer); 1602 fc->ongonode++; 1603 /* housekeeping work space */ 1604 fc->ongoaddr = CSRROMOFF; 1605 fc->ongodev = NULL; 1606 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1607 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1608 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1609 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1610 } 1611 fw_bus_explore(fc); 1612 return; 1613 } 1614 1615 /* 1616 * To attach sub-devices layer onto IEEE1394 bus. 1617 */ 1618 static void 1619 fw_attach_dev(struct firewire_comm *fc) 1620 { 1621 struct fw_device *fwdev, *next; 1622 int i, err; 1623 device_t *devlistp; 1624 int devcnt; 1625 struct firewire_dev_comm *fdc; 1626 1627 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1628 next = STAILQ_NEXT(fwdev, link); 1629 if (fwdev->status == FWDEVINIT) { 1630 fwdev->status = FWDEVATTACHED; 1631 } else if (fwdev->status == FWDEVINVAL) { 1632 fwdev->rcnt ++; 1633 if (fwdev->rcnt > hold_count) { 1634 /* 1635 * Remove devices which have not been seen 1636 * for a while. 1637 */ 1638 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1639 link); 1640 free(fwdev, M_FW); 1641 } 1642 } 1643 } 1644 1645 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1646 if( err != 0 ) 1647 return; 1648 for( i = 0 ; i < devcnt ; i++){ 1649 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1650 fdc = device_get_softc(devlistp[i]); 1651 if (fdc->post_explore != NULL) 1652 fdc->post_explore(fdc); 1653 } 1654 } 1655 free(devlistp, M_TEMP); 1656 1657 if (fc->retry_count > 0) { 1658 printf("probe failed for %d node\n", fc->retry_count); 1659 #if 0 1660 callout_reset(&fc->retry_probe_callout, hz*2, 1661 (void *)fc->ibr, (void *)fc); 1662 #endif 1663 } 1664 return; 1665 } 1666 1667 /* 1668 * To allocate uniq transaction label. 1669 */ 1670 static int 1671 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1672 { 1673 u_int i; 1674 struct tlabel *tl, *tmptl; 1675 int s; 1676 static u_int32_t label = 0; 1677 1678 s = splfw(); 1679 for( i = 0 ; i < 0x40 ; i ++){ 1680 label = (label + 1) & 0x3f; 1681 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1682 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1683 if (tmptl->xfer->send.hdr.mode.hdr.dst == 1684 xfer->send.hdr.mode.hdr.dst) 1685 break; 1686 } 1687 if(tmptl == NULL) { 1688 tl = malloc(sizeof(struct tlabel), M_FW, M_WAITOK); 1689 tl->xfer = xfer; 1690 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1691 splx(s); 1692 if (firewire_debug > 1) 1693 printf("fw_get_tlabel: dst=%d tl=%d\n", 1694 xfer->send.hdr.mode.hdr.dst, label); 1695 return(label); 1696 } 1697 } 1698 splx(s); 1699 1700 printf("fw_get_tlabel: no free tlabel\n"); 1701 return(-1); 1702 } 1703 1704 static void 1705 fw_rcv_copy(struct fw_rcv_buf *rb) 1706 { 1707 struct fw_pkt *pkt; 1708 u_char *p; 1709 struct tcode_info *tinfo; 1710 u_int res, i, len, plen; 1711 1712 rb->xfer->recv.spd -= rb->spd; 1713 1714 pkt = (struct fw_pkt *)rb->vec->iov_base; 1715 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1716 1717 /* Copy header */ 1718 p = (u_char *)&rb->xfer->recv.hdr; 1719 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1720 rb->vec->iov_base = (uint8_t *)rb->vec->iov_base + tinfo->hdr_len; 1721 rb->vec->iov_len -= tinfo->hdr_len; 1722 1723 /* Copy payload */ 1724 p = (u_char *)rb->xfer->recv.payload; 1725 res = rb->xfer->recv.pay_len; 1726 1727 /* special handling for RRESQ */ 1728 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1729 p != NULL && res >= sizeof(u_int32_t)) { 1730 *(u_int32_t *)p = pkt->mode.rresq.data; 1731 rb->xfer->recv.pay_len = sizeof(u_int32_t); 1732 return; 1733 } 1734 1735 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1736 return; 1737 1738 plen = pkt->mode.rresb.len; 1739 1740 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1741 len = MIN(rb->vec->iov_len, plen); 1742 if (res < len) { 1743 printf("rcv buffer(%d) is %d bytes short.\n", 1744 rb->xfer->recv.pay_len, len - res); 1745 len = res; 1746 } 1747 bcopy(rb->vec->iov_base, p, len); 1748 p += len; 1749 res -= len; 1750 plen -= len; 1751 if (res == 0 || plen == 0) 1752 break; 1753 } 1754 rb->xfer->recv.pay_len -= res; 1755 1756 } 1757 1758 /* 1759 * Generic packet receving process. 1760 */ 1761 void 1762 fw_rcv(struct fw_rcv_buf *rb) 1763 { 1764 struct fw_pkt *fp, *resfp; 1765 struct fw_bind *bind; 1766 int tcode, s; 1767 int i, len, oldstate; 1768 #if 0 1769 { 1770 u_int32_t *qld; 1771 int i; 1772 qld = (u_int32_t *)buf; 1773 printf("spd %d len:%d\n", spd, len); 1774 for( i = 0 ; i <= len && i < 32; i+= 4){ 1775 printf("0x%08x ", ntohl(qld[i/4])); 1776 if((i % 16) == 15) printf("\n"); 1777 } 1778 if((i % 16) != 15) printf("\n"); 1779 } 1780 #endif 1781 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1782 tcode = fp->mode.common.tcode; 1783 switch (tcode) { 1784 case FWTCODE_WRES: 1785 case FWTCODE_RRESQ: 1786 case FWTCODE_RRESB: 1787 case FWTCODE_LRES: 1788 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1789 fp->mode.hdr.tlrt >> 2); 1790 if(rb->xfer == NULL) { 1791 printf("fw_rcv: unknown response " 1792 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1793 tcode_str[tcode], tcode, 1794 fp->mode.hdr.src, 1795 fp->mode.hdr.tlrt >> 2, 1796 fp->mode.hdr.tlrt & 3, 1797 fp->mode.rresq.data); 1798 #if 1 1799 printf("try ad-hoc work around!!\n"); 1800 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1801 (fp->mode.hdr.tlrt >> 2)^3); 1802 if (rb->xfer == NULL) { 1803 printf("no use...\n"); 1804 goto err; 1805 } 1806 #else 1807 goto err; 1808 #endif 1809 } 1810 fw_rcv_copy(rb); 1811 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1812 rb->xfer->resp = EIO; 1813 else 1814 rb->xfer->resp = 0; 1815 /* make sure the packet is drained in AT queue */ 1816 oldstate = rb->xfer->state; 1817 rb->xfer->state = FWXF_RCVD; 1818 switch (oldstate) { 1819 case FWXF_SENT: 1820 fw_xfer_done(rb->xfer); 1821 break; 1822 case FWXF_START: 1823 #if 0 1824 if (firewire_debug) 1825 printf("not sent yet tl=%x\n", rb->xfer->tl); 1826 #endif 1827 break; 1828 default: 1829 printf("unexpected state %d\n", rb->xfer->state); 1830 } 1831 return; 1832 case FWTCODE_WREQQ: 1833 case FWTCODE_WREQB: 1834 case FWTCODE_RREQQ: 1835 case FWTCODE_RREQB: 1836 case FWTCODE_LREQ: 1837 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1838 fp->mode.rreqq.dest_lo); 1839 if(bind == NULL){ 1840 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1841 " src=0x%x data=%x\n", 1842 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1843 tcode_str[tcode], tcode, 1844 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1845 if (rb->fc->status == FWBUSRESET) { 1846 printf("fw_rcv: cannot respond(bus reset)!\n"); 1847 goto err; 1848 } 1849 rb->xfer = fw_xfer_alloc(M_FWXFER); 1850 if(rb->xfer == NULL){ 1851 return; 1852 } 1853 rb->xfer->send.spd = rb->spd; 1854 rb->xfer->send.pay_len = 0; 1855 resfp = &rb->xfer->send.hdr; 1856 switch (tcode) { 1857 case FWTCODE_WREQQ: 1858 case FWTCODE_WREQB: 1859 resfp->mode.hdr.tcode = FWTCODE_WRES; 1860 break; 1861 case FWTCODE_RREQQ: 1862 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1863 break; 1864 case FWTCODE_RREQB: 1865 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1866 break; 1867 case FWTCODE_LREQ: 1868 resfp->mode.hdr.tcode = FWTCODE_LRES; 1869 break; 1870 } 1871 resfp->mode.hdr.dst = fp->mode.hdr.src; 1872 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1873 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1874 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1875 resfp->mode.rresb.extcode = 0; 1876 resfp->mode.rresb.len = 0; 1877 /* 1878 rb->xfer->act.hand = fw_asy_callback; 1879 */ 1880 rb->xfer->act.hand = fw_xfer_free; 1881 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1882 fw_xfer_free(rb->xfer); 1883 return; 1884 } 1885 goto err; 1886 } 1887 len = 0; 1888 for (i = 0; i < rb->nvec; i ++) 1889 len += rb->vec[i].iov_len; 1890 switch(bind->act_type){ 1891 case FWACT_XFER: 1892 /* splfw()?? */ 1893 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1894 if (rb->xfer == NULL) { 1895 printf("Discard a packet for this bind.\n"); 1896 goto err; 1897 } 1898 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1899 fw_rcv_copy(rb); 1900 rb->xfer->act.hand(rb->xfer); 1901 return; 1902 break; 1903 case FWACT_CH: 1904 if(rb->fc->ir[bind->sub]->queued >= 1905 rb->fc->ir[bind->sub]->maxq){ 1906 device_printf(rb->fc->bdev, 1907 "Discard a packet %x %d\n", 1908 bind->sub, 1909 rb->fc->ir[bind->sub]->queued); 1910 goto err; 1911 } 1912 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1913 if (rb->xfer == NULL) { 1914 printf("Discard packet for this bind\n"); 1915 goto err; 1916 } 1917 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1918 fw_rcv_copy(rb); 1919 s = splfw(); 1920 rb->fc->ir[bind->sub]->queued++; 1921 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q, 1922 rb->xfer, link); 1923 splx(s); 1924 1925 wakeup((caddr_t)rb->fc->ir[bind->sub]); 1926 1927 return; 1928 break; 1929 default: 1930 goto err; 1931 break; 1932 } 1933 break; 1934 #if 0 /* shouldn't happen ?? or for GASP */ 1935 case FWTCODE_STREAM: 1936 { 1937 struct fw_xferq *xferq; 1938 1939 xferq = rb->fc->ir[sub]; 1940 #if 0 1941 printf("stream rcv dma %d len %d off %d spd %d\n", 1942 sub, len, off, spd); 1943 #endif 1944 if(xferq->queued >= xferq->maxq) { 1945 printf("receive queue is full\n"); 1946 goto err; 1947 } 1948 /* XXX get xfer from xfer queue, we don't need copy for 1949 per packet mode */ 1950 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1951 vec[0].iov_len); 1952 if (rb->xfer == NULL) goto err; 1953 fw_rcv_copy(rb) 1954 s = splfw(); 1955 xferq->queued++; 1956 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1957 splx(s); 1958 sc = device_get_softc(rb->fc->bdev); 1959 #if defined(__DragonFly__) || __FreeBSD_version < 500000 1960 if (&xferq->rsel.si_pid != 0) 1961 #else 1962 if (SEL_WAITING(&xferq->rsel)) 1963 #endif 1964 selwakeuppri(&xferq->rsel, FWPRI); 1965 if (xferq->flag & FWXFERQ_WAKEUP) { 1966 xferq->flag &= ~FWXFERQ_WAKEUP; 1967 wakeup((caddr_t)xferq); 1968 } 1969 if (xferq->flag & FWXFERQ_HANDLER) { 1970 xferq->hand(xferq); 1971 } 1972 return; 1973 break; 1974 } 1975 #endif 1976 default: 1977 printf("fw_rcv: unknow tcode %d\n", tcode); 1978 break; 1979 } 1980 err: 1981 return; 1982 } 1983 1984 /* 1985 * Post process for Bus Manager election process. 1986 */ 1987 static void 1988 fw_try_bmr_callback(struct fw_xfer *xfer) 1989 { 1990 struct firewire_comm *fc; 1991 int bmr; 1992 1993 if (xfer == NULL) 1994 return; 1995 fc = xfer->fc; 1996 if (xfer->resp != 0) 1997 goto error; 1998 if (xfer->recv.payload == NULL) 1999 goto error; 2000 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2001 goto error; 2002 2003 bmr = ntohl(xfer->recv.payload[0]); 2004 if (bmr == 0x3f) 2005 bmr = fc->nodeid; 2006 2007 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2008 fw_xfer_free_buf(xfer); 2009 fw_bmr(fc); 2010 return; 2011 2012 error: 2013 device_printf(fc->bdev, "bus manager election failed\n"); 2014 fw_xfer_free_buf(xfer); 2015 } 2016 2017 2018 /* 2019 * To candidate Bus Manager election process. 2020 */ 2021 static void 2022 fw_try_bmr(void *arg) 2023 { 2024 struct fw_xfer *xfer; 2025 struct firewire_comm *fc = (struct firewire_comm *)arg; 2026 struct fw_pkt *fp; 2027 int err = 0; 2028 2029 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2030 if(xfer == NULL){ 2031 return; 2032 } 2033 xfer->send.spd = 0; 2034 fc->status = FWBUSMGRELECT; 2035 2036 fp = &xfer->send.hdr; 2037 fp->mode.lreq.dest_hi = 0xffff; 2038 fp->mode.lreq.tlrt = 0; 2039 fp->mode.lreq.tcode = FWTCODE_LREQ; 2040 fp->mode.lreq.pri = 0; 2041 fp->mode.lreq.src = 0; 2042 fp->mode.lreq.len = 8; 2043 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2044 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2045 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2046 xfer->send.payload[0] = htonl(0x3f); 2047 xfer->send.payload[1] = htonl(fc->nodeid); 2048 xfer->act.hand = fw_try_bmr_callback; 2049 2050 err = fw_asyreq(fc, -1, xfer); 2051 if(err){ 2052 fw_xfer_free_buf(xfer); 2053 return; 2054 } 2055 return; 2056 } 2057 2058 #ifdef FW_VMACCESS 2059 /* 2060 * Software implementation for physical memory block access. 2061 * XXX:Too slow, usef for debug purpose only. 2062 */ 2063 static void 2064 fw_vmaccess(struct fw_xfer *xfer){ 2065 struct fw_pkt *rfp, *sfp = NULL; 2066 u_int32_t *ld = (u_int32_t *)xfer->recv.buf; 2067 2068 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2069 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2070 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2071 if(xfer->resp != 0){ 2072 fw_xfer_free( xfer); 2073 return; 2074 } 2075 if(xfer->recv.buf == NULL){ 2076 fw_xfer_free( xfer); 2077 return; 2078 } 2079 rfp = (struct fw_pkt *)xfer->recv.buf; 2080 switch(rfp->mode.hdr.tcode){ 2081 /* XXX need fix for 64bit arch */ 2082 case FWTCODE_WREQB: 2083 xfer->send.buf = malloc(12, M_FW, M_WAITOK); 2084 xfer->send.len = 12; 2085 sfp = (struct fw_pkt *)xfer->send.buf; 2086 bcopy(rfp->mode.wreqb.payload, 2087 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2088 sfp->mode.wres.tcode = FWTCODE_WRES; 2089 sfp->mode.wres.rtcode = 0; 2090 break; 2091 case FWTCODE_WREQQ: 2092 xfer->send.buf = malloc(12, M_FW, M_WAITOK); 2093 xfer->send.len = 12; 2094 sfp->mode.wres.tcode = FWTCODE_WRES; 2095 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2096 sfp->mode.wres.rtcode = 0; 2097 break; 2098 case FWTCODE_RREQB: 2099 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_WAITOK); 2100 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2101 sfp = (struct fw_pkt *)xfer->send.buf; 2102 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2103 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2104 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2105 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2106 sfp->mode.rresb.rtcode = 0; 2107 sfp->mode.rresb.extcode = 0; 2108 break; 2109 case FWTCODE_RREQQ: 2110 xfer->send.buf = malloc(16, M_FW, M_WAITOK); 2111 xfer->send.len = 16; 2112 sfp = (struct fw_pkt *)xfer->send.buf; 2113 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2114 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2115 sfp->mode.rresb.rtcode = 0; 2116 break; 2117 default: 2118 fw_xfer_free( xfer); 2119 return; 2120 } 2121 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2122 xfer->dst = ntohs(rfp->mode.hdr.src); 2123 xfer->act.hand = fw_xfer_free; 2124 xfer->retry_req = fw_asybusy; 2125 2126 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2127 sfp->mode.hdr.pri = 0; 2128 2129 fw_asyreq(xfer->fc, -1, xfer); 2130 /**/ 2131 return; 2132 } 2133 #endif 2134 2135 /* 2136 * CRC16 check-sum for IEEE1394 register blocks. 2137 */ 2138 u_int16_t 2139 fw_crc16(u_int32_t *ptr, u_int32_t len){ 2140 u_int32_t i, sum, crc = 0; 2141 int shift; 2142 len = (len + 3) & ~3; 2143 for(i = 0 ; i < len ; i+= 4){ 2144 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2145 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2146 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2147 } 2148 crc &= 0xffff; 2149 } 2150 return((u_int16_t) crc); 2151 } 2152 2153 static int 2154 fw_bmr(struct firewire_comm *fc) 2155 { 2156 struct fw_device fwdev; 2157 union fw_self_id *self_id; 2158 int cmstr; 2159 u_int32_t quad; 2160 2161 /* Check to see if the current root node is cycle master capable */ 2162 self_id = &fc->topology_map->self_id[fc->max_node]; 2163 if (fc->max_node > 0) { 2164 /* XXX check cmc bit of businfo block rather than contender */ 2165 if (self_id->p0.link_active && self_id->p0.contender) 2166 cmstr = fc->max_node; 2167 else { 2168 device_printf(fc->bdev, 2169 "root node is not cycle master capable\n"); 2170 /* XXX shall we be the cycle master? */ 2171 cmstr = fc->nodeid; 2172 /* XXX need bus reset */ 2173 } 2174 } else 2175 cmstr = -1; 2176 2177 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2178 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2179 /* We are not the bus manager */ 2180 printf("\n"); 2181 return(0); 2182 } 2183 printf("(me)\n"); 2184 2185 /* Optimize gapcount */ 2186 if(fc->max_hop <= MAX_GAPHOP ) 2187 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2188 /* If we are the cycle master, nothing to do */ 2189 if (cmstr == fc->nodeid || cmstr == -1) 2190 return 0; 2191 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2192 bzero(&fwdev, sizeof(fwdev)); 2193 fwdev.fc = fc; 2194 fwdev.dst = cmstr; 2195 fwdev.speed = 0; 2196 fwdev.maxrec = 8; /* 512 */ 2197 fwdev.status = FWDEVINIT; 2198 /* Set cmstr bit on the cycle master */ 2199 quad = htonl(1 << 8); 2200 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2201 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2202 2203 return 0; 2204 } 2205 2206 static int 2207 fw_modevent(module_t mode, int type, void *data) 2208 { 2209 int err = 0; 2210 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2211 static eventhandler_tag fwdev_ehtag = NULL; 2212 #endif 2213 2214 switch (type) { 2215 case MOD_LOAD: 2216 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2217 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2218 fwdev_clone, 0, 1000); 2219 #endif 2220 break; 2221 case MOD_UNLOAD: 2222 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2223 if (fwdev_ehtag != NULL) 2224 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2225 #endif 2226 break; 2227 case MOD_SHUTDOWN: 2228 break; 2229 } 2230 return (err); 2231 } 2232 2233 DECLARE_DUMMY_MODULE(firewire); 2234 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2235 MODULE_VERSION(firewire, 1); 2236