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 */ 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/types.h> 40 41 #include <sys/kernel.h> 42 #include <sys/malloc.h> 43 #include <sys/conf.h> 44 #include <sys/bus.h> /* used by smbus and newbus */ 45 #include <sys/sysctl.h> 46 #include <sys/thread2.h> 47 48 #include <bus/firewire/firewire.h> 49 #include <bus/firewire/firewirereg.h> 50 #include <bus/firewire/fwmem.h> 51 #include <bus/firewire/iec13213.h> 52 #include <bus/firewire/iec68113.h> 53 54 struct crom_src_buf { 55 struct crom_src src; 56 struct crom_chunk root; 57 struct crom_chunk vendor; 58 struct crom_chunk hw; 59 }; 60 61 int firewire_debug=0, try_bmr=1, hold_count=3; 62 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 63 "FireWire driver debug flag"); 64 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 65 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 66 "Try to be a bus manager"); 67 SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0, 68 "Number of count of bus resets for removing lost device information"); 69 70 MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 71 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 72 73 #define FW_MAXASYRTY 4 74 75 devclass_t firewire_devclass; 76 77 static int firewire_probe (device_t); 78 static int firewire_attach (device_t); 79 static int firewire_detach (device_t); 80 static int firewire_resume (device_t); 81 #if 0 82 static int firewire_shutdown (device_t); 83 #endif 84 static device_t firewire_add_child (device_t, device_t, int, const char *, int); 85 static void fw_try_bmr (void *); 86 static void fw_try_bmr_callback (struct fw_xfer *); 87 static void fw_asystart (struct fw_xfer *); 88 static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *); 89 static void fw_bus_probe (struct firewire_comm *); 90 static void fw_bus_explore (struct firewire_comm *); 91 static void fw_bus_explore_callback (struct fw_xfer *); 92 static void fw_attach_dev (struct firewire_comm *); 93 #ifdef FW_VMACCESS 94 static void fw_vmaccess (struct fw_xfer *); 95 #endif 96 struct fw_xfer *asyreqq (struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 97 u_int32_t, u_int32_t, void (*)(struct fw_xfer *)); 98 static int fw_bmr (struct firewire_comm *); 99 100 /* 101 * note: bus_generic_identify() will automatically install a "firewire" 102 * device under any attached fwohci device. 103 */ 104 static device_method_t firewire_methods[] = { 105 /* Device interface */ 106 DEVMETHOD(device_identify, bus_generic_identify), 107 DEVMETHOD(device_probe, firewire_probe), 108 DEVMETHOD(device_attach, firewire_attach), 109 DEVMETHOD(device_detach, firewire_detach), 110 DEVMETHOD(device_suspend, bus_generic_suspend), 111 DEVMETHOD(device_resume, firewire_resume), 112 DEVMETHOD(device_shutdown, bus_generic_shutdown), 113 114 /* Bus interface */ 115 DEVMETHOD(bus_add_child, firewire_add_child), 116 DEVMETHOD(bus_print_child, bus_generic_print_child), 117 118 DEVMETHOD_END 119 }; 120 char *linkspeed[] = { 121 "S100", "S200", "S400", "S800", 122 "S1600", "S3200", "undef", "undef" 123 }; 124 125 static char *tcode_str[] = { 126 "WREQQ", "WREQB", "WRES", "undef", 127 "RREQQ", "RREQB", "RRESQ", "RRESB", 128 "CYCS", "LREQ", "STREAM", "LRES", 129 "undef", "undef", "PHY", "undef" 130 }; 131 132 /* IEEE-1394a Table C-2 Gap count as a function of hops*/ 133 #define MAX_GAPHOP 15 134 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 135 21, 24, 26, 29, 32, 35, 37, 40}; 136 137 static driver_t firewire_driver = { 138 "firewire", 139 firewire_methods, 140 sizeof(struct firewire_softc), 141 }; 142 143 /* 144 * Lookup fwdev by node id. 145 */ 146 struct fw_device * 147 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 148 { 149 struct fw_device *fwdev; 150 151 crit_enter(); 152 STAILQ_FOREACH(fwdev, &fc->devices, link) 153 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 154 break; 155 crit_exit(); 156 157 return fwdev; 158 } 159 160 /* 161 * Lookup fwdev by EUI64. 162 */ 163 struct fw_device * 164 fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 165 { 166 struct fw_device *fwdev; 167 168 crit_enter(); 169 STAILQ_FOREACH(fwdev, &fc->devices, link) 170 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 171 break; 172 crit_exit(); 173 174 if(fwdev == NULL) return NULL; 175 if(fwdev->status == FWDEVINVAL) return NULL; 176 return fwdev; 177 } 178 179 /* 180 * Async. request procedure for userland application. 181 */ 182 int 183 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 184 { 185 int err = 0; 186 struct fw_xferq *xferq; 187 int tl = 0, len; 188 struct fw_pkt *fp; 189 int tcode; 190 struct tcode_info *info; 191 192 if(xfer == NULL) return EINVAL; 193 if(xfer->act.hand == NULL){ 194 kprintf("act.hand == NULL\n"); 195 return EINVAL; 196 } 197 fp = &xfer->send.hdr; 198 199 tcode = fp->mode.common.tcode & 0xf; 200 info = &fc->tcode[tcode]; 201 if (info->flag == 0) { 202 kprintf("invalid tcode=%x\n", tcode); 203 return EINVAL; 204 } 205 if (info->flag & FWTI_REQ) 206 xferq = fc->atq; 207 else 208 xferq = fc->ats; 209 len = info->hdr_len; 210 if (xfer->send.pay_len > MAXREC(fc->maxrec)) { 211 kprintf("send.pay_len > maxrec\n"); 212 return EINVAL; 213 } 214 if (info->flag & FWTI_BLOCK_STR) 215 len = fp->mode.stream.len; 216 else if (info->flag & FWTI_BLOCK_ASY) 217 len = fp->mode.rresb.len; 218 else 219 len = 0; 220 if (len != xfer->send.pay_len){ 221 kprintf("len(%d) != send.pay_len(%d) %s(%x)\n", 222 len, xfer->send.pay_len, tcode_str[tcode], tcode); 223 return EINVAL; 224 } 225 226 if(xferq->start == NULL){ 227 kprintf("xferq->start == NULL\n"); 228 return EINVAL; 229 } 230 if(!(xferq->queued < xferq->maxq)){ 231 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 232 xferq->queued); 233 return EINVAL; 234 } 235 236 microtime(&xfer->tv); 237 if (info->flag & FWTI_TLABEL) { 238 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 239 return EIO; 240 fp->mode.hdr.tlrt = tl << 2; 241 } 242 243 xfer->tl = tl; 244 xfer->resp = 0; 245 xfer->fc = fc; 246 xfer->q = xferq; 247 xfer->retry_req = fw_asybusy; 248 249 fw_asystart(xfer); 250 return err; 251 } 252 /* 253 * Wakeup blocked process. 254 */ 255 void 256 fw_asy_callback(struct fw_xfer *xfer){ 257 wakeup(xfer); 258 return; 259 } 260 /* 261 * Postpone to later retry. 262 */ 263 void 264 fw_asybusy(struct fw_xfer *xfer) 265 { 266 kprintf("fw_asybusy\n"); 267 /* 268 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 269 */ 270 #if 0 271 DELAY(20000); 272 #endif 273 fw_asystart(xfer); 274 return; 275 } 276 277 /* 278 * Async. request with given xfer structure. 279 */ 280 static void 281 fw_asystart(struct fw_xfer *xfer) 282 { 283 struct firewire_comm *fc = xfer->fc; 284 285 if(xfer->retry++ >= fc->max_asyretry){ 286 device_printf(fc->bdev, "max_asyretry exceeded\n"); 287 xfer->resp = EBUSY; 288 xfer->state = FWXF_BUSY; 289 xfer->act.hand(xfer); 290 return; 291 } 292 #if 0 /* XXX allow bus explore packets only after bus rest */ 293 if (fc->status < FWBUSEXPLORE) { 294 xfer->resp = EAGAIN; 295 xfer->state = FWXF_BUSY; 296 if (xfer->act.hand != NULL) 297 xfer->act.hand(xfer); 298 return; 299 } 300 #endif 301 crit_enter(); 302 xfer->state = FWXF_INQ; 303 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 304 xfer->q->queued ++; 305 crit_exit(); 306 /* XXX just queue for mbuf */ 307 if (xfer->mbuf == NULL) 308 xfer->q->start(fc); 309 return; 310 } 311 312 static int 313 firewire_probe(device_t dev) 314 { 315 device_set_desc(dev, "IEEE1394(FireWire) bus"); 316 return (0); 317 } 318 319 static void 320 firewire_xfer_timeout(struct firewire_comm *fc) 321 { 322 struct fw_xfer *xfer; 323 struct tlabel *tl; 324 struct timeval tv; 325 struct timeval split_timeout; 326 int i; 327 328 split_timeout.tv_sec = 0; 329 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 330 331 microtime(&tv); 332 timevalsub(&tv, &split_timeout); 333 334 crit_enter(); 335 for (i = 0; i < 0x40; i ++) { 336 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 337 xfer = tl->xfer; 338 if (timevalcmp(&xfer->tv, &tv, >)) 339 /* the rests are newer than this */ 340 break; 341 if (xfer->state == FWXF_START) 342 /* not sent yet */ 343 break; 344 device_printf(fc->bdev, 345 "split transaction timeout dst=0x%x tl=0x%x state=%d\n", 346 xfer->send.hdr.mode.hdr.dst, i, xfer->state); 347 xfer->resp = ETIMEDOUT; 348 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 349 fw_xfer_done(xfer); 350 } 351 } 352 crit_exit(); 353 } 354 355 #define WATCHDOC_HZ 10 356 static void 357 firewire_watchdog(void *arg) 358 { 359 struct firewire_comm *fc; 360 static int watchdoc_clock = 0; 361 362 fc = (struct firewire_comm *)arg; 363 364 /* 365 * At boot stage, the device interrupt is disabled and 366 * We encounter a timeout easily. To avoid this, 367 * ignore clock interrupt for a while. 368 */ 369 if (watchdoc_clock > WATCHDOC_HZ * 15) { 370 firewire_xfer_timeout(fc); 371 fc->timeout(fc); 372 } else 373 watchdoc_clock ++; 374 375 callout_reset(&fc->timeout_callout, hz / WATCHDOC_HZ, 376 (void *)firewire_watchdog, (void *)fc); 377 } 378 379 /* 380 * The attach routine. 381 */ 382 static int 383 firewire_attach(device_t dev) 384 { 385 struct firewire_softc *sc = device_get_softc(dev); 386 device_t pa = device_get_parent(dev); 387 struct firewire_comm *fc; 388 389 fc = (struct firewire_comm *)device_get_softc(pa); 390 sc->fc = fc; 391 fc->status = FWBUSNOTREADY; 392 393 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 394 395 fwdev_makedev(sc); 396 397 CALLOUT_INIT(&sc->fc->timeout_callout); 398 CALLOUT_INIT(&sc->fc->bmr_callout); 399 CALLOUT_INIT(&sc->fc->retry_probe_callout); 400 CALLOUT_INIT(&sc->fc->busprobe_callout); 401 402 callout_reset(&sc->fc->timeout_callout, hz, 403 (void *)firewire_watchdog, (void *)sc->fc); 404 405 /* Locate our children */ 406 bus_generic_probe(dev); 407 408 /* launch attachement of the added children */ 409 bus_generic_attach(dev); 410 411 /* bus_reset */ 412 fw_busreset(fc); 413 fc->ibr(fc); 414 415 return 0; 416 } 417 418 /* 419 * Attach it as child. 420 */ 421 static device_t 422 firewire_add_child(device_t bus, device_t parent, int order, const char *name, int unit) 423 { 424 device_t child; 425 struct firewire_softc *sc; 426 427 sc = (struct firewire_softc *)device_get_softc(parent); 428 child = device_add_child(parent, name, unit); 429 if (child) { 430 device_set_ivars(child, sc->fc); 431 device_probe_and_attach(child); 432 } 433 434 return child; 435 } 436 437 static int 438 firewire_resume(device_t dev) 439 { 440 struct firewire_softc *sc; 441 442 sc = (struct firewire_softc *)device_get_softc(dev); 443 sc->fc->status = FWBUSNOTREADY; 444 445 bus_generic_resume(dev); 446 447 return(0); 448 } 449 450 /* 451 * Dettach it. 452 */ 453 static int 454 firewire_detach(device_t dev) 455 { 456 struct firewire_softc *sc; 457 struct csrdir *csrd, *next; 458 struct fw_device *fwdev, *fwdev_next; 459 int err; 460 461 sc = (struct firewire_softc *)device_get_softc(dev); 462 if ((err = fwdev_destroydev(sc)) != 0) 463 return err; 464 465 if ((err = bus_generic_detach(dev)) != 0) 466 return err; 467 468 callout_stop(&sc->fc->timeout_callout); 469 callout_stop(&sc->fc->bmr_callout); 470 callout_stop(&sc->fc->retry_probe_callout); 471 callout_stop(&sc->fc->busprobe_callout); 472 473 /* XXX xfree_free and callout_stop on all xfers */ 474 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 475 fwdev = fwdev_next) { 476 fwdev_next = STAILQ_NEXT(fwdev, link); 477 kfree(fwdev, M_FW); 478 } 479 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 480 next = SLIST_NEXT(csrd, link); 481 kfree(csrd, M_FW); 482 } 483 kfree(sc->fc->topology_map, M_FW); 484 kfree(sc->fc->speed_map, M_FW); 485 kfree(sc->fc->crom_src_buf, M_FW); 486 return(0); 487 } 488 #if 0 489 static int 490 firewire_shutdown( device_t dev ) 491 { 492 return 0; 493 } 494 #endif 495 496 497 static void 498 fw_xferq_drain(struct fw_xferq *xferq) 499 { 500 struct fw_xfer *xfer; 501 502 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 503 STAILQ_REMOVE_HEAD(&xferq->q, link); 504 xferq->queued --; 505 xfer->resp = EAGAIN; 506 xfer->state = FWXF_SENTERR; 507 fw_xfer_done(xfer); 508 } 509 } 510 511 void 512 fw_drain_txq(struct firewire_comm *fc) 513 { 514 int i; 515 516 fw_xferq_drain(fc->atq); 517 fw_xferq_drain(fc->ats); 518 for(i = 0; i < fc->nisodma; i++) 519 fw_xferq_drain(fc->it[i]); 520 } 521 522 static void 523 fw_reset_csr(struct firewire_comm *fc) 524 { 525 int i; 526 527 CSRARC(fc, STATE_CLEAR) 528 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 529 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 530 CSRARC(fc, NODE_IDS) = 0x3f; 531 532 CSRARC(fc, TOPO_MAP + 8) = 0; 533 fc->irm = -1; 534 535 fc->max_node = -1; 536 537 for(i = 2; i < 0x100/4 - 2 ; i++){ 538 CSRARC(fc, SPED_MAP + i * 4) = 0; 539 } 540 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 541 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 542 CSRARC(fc, RESET_START) = 0; 543 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 544 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 545 CSRARC(fc, CYCLE_TIME) = 0x0; 546 CSRARC(fc, BUS_TIME) = 0x0; 547 CSRARC(fc, BUS_MGR_ID) = 0x3f; 548 CSRARC(fc, BANDWIDTH_AV) = 4915; 549 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 550 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 551 CSRARC(fc, IP_CHANNELS) = (1 << 31); 552 553 CSRARC(fc, CONF_ROM) = 0x04 << 24; 554 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 555 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 556 1 << 28 | 0xff << 16 | 0x09 << 8; 557 CSRARC(fc, CONF_ROM + 0xc) = 0; 558 559 /* DV depend CSRs see blue book */ 560 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 561 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 562 563 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 564 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 565 } 566 567 static void 568 fw_init_crom(struct firewire_comm *fc) 569 { 570 struct crom_src *src; 571 572 fc->crom_src_buf = (struct crom_src_buf *) 573 kmalloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 574 575 src = &fc->crom_src_buf->src; 576 bzero(src, sizeof(struct crom_src)); 577 578 /* BUS info sample */ 579 src->hdr.info_len = 4; 580 581 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 582 583 src->businfo.irmc = 1; 584 src->businfo.cmc = 1; 585 src->businfo.isc = 1; 586 src->businfo.bmc = 1; 587 src->businfo.pmc = 0; 588 src->businfo.cyc_clk_acc = 100; 589 src->businfo.max_rec = fc->maxrec; 590 src->businfo.max_rom = MAXROM_4; 591 src->businfo.generation = 1; 592 src->businfo.link_spd = fc->speed; 593 594 src->businfo.eui64.hi = fc->eui.hi; 595 src->businfo.eui64.lo = fc->eui.lo; 596 597 STAILQ_INIT(&src->chunk_list); 598 599 fc->crom_src = src; 600 fc->crom_root = &fc->crom_src_buf->root; 601 } 602 603 static void 604 fw_reset_crom(struct firewire_comm *fc) 605 { 606 struct crom_src_buf *buf; 607 struct crom_src *src; 608 struct crom_chunk *root; 609 610 if (fc->crom_src_buf == NULL) 611 fw_init_crom(fc); 612 613 buf = fc->crom_src_buf; 614 src = fc->crom_src; 615 root = fc->crom_root; 616 617 STAILQ_INIT(&src->chunk_list); 618 619 bzero(root, sizeof(struct crom_chunk)); 620 crom_add_chunk(src, NULL, root, 0); 621 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 622 /* private company_id */ 623 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 624 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 625 crom_add_entry(root, CSRKEY_HW, __DragonFly_version); 626 crom_add_simple_text(src, root, &buf->hw, hostname); 627 } 628 629 /* 630 * Called after bus reset. 631 */ 632 void 633 fw_busreset(struct firewire_comm *fc) 634 { 635 struct firewire_dev_comm *fdc; 636 struct crom_src *src; 637 device_t *devlistp; 638 void *newrom; 639 int i, devcnt; 640 641 switch(fc->status){ 642 case FWBUSMGRELECT: 643 callout_stop(&fc->bmr_callout); 644 break; 645 default: 646 break; 647 } 648 fc->status = FWBUSRESET; 649 fw_reset_csr(fc); 650 fw_reset_crom(fc); 651 652 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 653 for( i = 0 ; i < devcnt ; i++) 654 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 655 fdc = device_get_softc(devlistp[i]); 656 if (fdc->post_busreset != NULL) 657 fdc->post_busreset(fdc); 658 } 659 kfree(devlistp, M_TEMP); 660 } 661 662 newrom = kmalloc(CROMSIZE, M_FW, M_WAITOK | M_ZERO); 663 src = &fc->crom_src_buf->src; 664 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 665 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 666 /* bump generation and reload */ 667 src->businfo.generation ++; 668 /* generation must be between 0x2 and 0xF */ 669 if (src->businfo.generation < 2) 670 src->businfo.generation ++; 671 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 672 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 673 } 674 kfree(newrom, M_FW); 675 } 676 677 /* Call once after reboot */ 678 void 679 fw_init(struct firewire_comm *fc) 680 { 681 int i; 682 struct csrdir *csrd; 683 #ifdef FW_VMACCESS 684 struct fw_xfer *xfer; 685 struct fw_bind *fwb; 686 #endif 687 688 fc->max_asyretry = FW_MAXASYRTY; 689 690 fc->arq->queued = 0; 691 fc->ars->queued = 0; 692 fc->atq->queued = 0; 693 fc->ats->queued = 0; 694 695 fc->arq->buf = NULL; 696 fc->ars->buf = NULL; 697 fc->atq->buf = NULL; 698 fc->ats->buf = NULL; 699 700 fc->arq->flag = 0; 701 fc->ars->flag = 0; 702 fc->atq->flag = 0; 703 fc->ats->flag = 0; 704 705 STAILQ_INIT(&fc->atq->q); 706 STAILQ_INIT(&fc->ats->q); 707 708 for( i = 0 ; i < fc->nisodma ; i ++ ){ 709 fc->it[i]->queued = 0; 710 fc->ir[i]->queued = 0; 711 712 fc->it[i]->start = NULL; 713 fc->ir[i]->start = NULL; 714 715 fc->it[i]->buf = NULL; 716 fc->ir[i]->buf = NULL; 717 718 fc->it[i]->flag = FWXFERQ_STREAM; 719 fc->ir[i]->flag = FWXFERQ_STREAM; 720 721 STAILQ_INIT(&fc->it[i]->q); 722 STAILQ_INIT(&fc->ir[i]->q); 723 724 STAILQ_INIT(&fc->it[i]->binds); 725 STAILQ_INIT(&fc->ir[i]->binds); 726 } 727 728 fc->arq->maxq = FWMAXQUEUE; 729 fc->ars->maxq = FWMAXQUEUE; 730 fc->atq->maxq = FWMAXQUEUE; 731 fc->ats->maxq = FWMAXQUEUE; 732 733 for( i = 0 ; i < fc->nisodma ; i++){ 734 fc->ir[i]->maxq = FWMAXQUEUE; 735 fc->it[i]->maxq = FWMAXQUEUE; 736 } 737 /* Initialize csr registers */ 738 fc->topology_map = kmalloc(sizeof(struct fw_topology_map), 739 M_FW, M_WAITOK | M_ZERO); 740 fc->speed_map = kmalloc(sizeof(struct fw_speed_map), 741 M_FW, M_WAITOK | M_ZERO); 742 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 743 CSRARC(fc, TOPO_MAP + 4) = 1; 744 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 745 CSRARC(fc, SPED_MAP + 4) = 1; 746 747 STAILQ_INIT(&fc->devices); 748 749 /* Initialize csr ROM work space */ 750 SLIST_INIT(&fc->ongocsr); 751 SLIST_INIT(&fc->csrfree); 752 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 753 csrd = kmalloc(sizeof(struct csrdir), M_FW, M_WAITOK); 754 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 755 } 756 757 /* Initialize Async handlers */ 758 STAILQ_INIT(&fc->binds); 759 for( i = 0 ; i < 0x40 ; i++){ 760 STAILQ_INIT(&fc->tlabels[i]); 761 } 762 763 /* DV depend CSRs see blue book */ 764 #if 0 765 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 766 CSRARC(fc, oPCR) = 0x8000007a; 767 for(i = 4 ; i < 0x7c/4 ; i+=4){ 768 CSRARC(fc, i + oPCR) = 0x8000007a; 769 } 770 771 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 772 CSRARC(fc, iPCR) = 0x803f0000; 773 for(i = 4 ; i < 0x7c/4 ; i+=4){ 774 CSRARC(fc, i + iPCR) = 0x0; 775 } 776 #endif 777 778 fc->crom_src_buf = NULL; 779 780 #ifdef FW_VMACCESS 781 xfer = fw_xfer_alloc(); 782 if(xfer == NULL) return; 783 784 fwb = kmalloc(sizeof (struct fw_bind), M_FW, M_WAITOK); 785 xfer->act.hand = fw_vmaccess; 786 xfer->fc = fc; 787 xfer->sc = NULL; 788 789 fwb->start_hi = 0x2; 790 fwb->start_lo = 0; 791 fwb->addrlen = 0xffffffff; 792 fwb->xfer = xfer; 793 fw_bindadd(fc, fwb); 794 #endif 795 } 796 797 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 798 ((fwb)->end < (addr))?1:0) 799 800 /* 801 * To lookup binded process from IEEE1394 address. 802 */ 803 struct fw_bind * 804 fw_bindlookup(struct firewire_comm *fc, u_int16_t dest_hi, u_int32_t dest_lo) 805 { 806 u_int64_t addr; 807 struct fw_bind *tfw; 808 809 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 810 STAILQ_FOREACH(tfw, &fc->binds, fclist) 811 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0) 812 return(tfw); 813 return(NULL); 814 } 815 816 /* 817 * To bind IEEE1394 address block to process. 818 */ 819 int 820 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 821 { 822 struct fw_bind *tfw, *prev = NULL; 823 824 if (fwb->start > fwb->end) { 825 kprintf("%s: invalid range\n", __func__); 826 return EINVAL; 827 } 828 829 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 830 if (fwb->end < tfw->start) 831 break; 832 prev = tfw; 833 } 834 if (prev == NULL) { 835 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 836 goto out; 837 } 838 if (prev->end < fwb->start) { 839 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 840 goto out; 841 } 842 843 kprintf("%s: bind failed\n", __func__); 844 return (EBUSY); 845 846 out: 847 if (fwb->act_type == FWACT_CH) 848 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 849 return (0); 850 } 851 852 /* 853 * To free IEEE1394 address block. 854 */ 855 int 856 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 857 { 858 #if 0 859 struct fw_xfer *xfer, *next; 860 #endif 861 struct fw_bind *tfw; 862 863 crit_enter(); 864 STAILQ_FOREACH(tfw, &fc->binds, fclist) 865 if (tfw == fwb) { 866 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 867 goto found; 868 } 869 870 kprintf("%s: no such bind\n", __func__); 871 crit_exit(); 872 return (1); 873 found: 874 #if 0 875 /* shall we do this? */ 876 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 877 next = STAILQ_NEXT(xfer, link); 878 fw_xfer_free(xfer); 879 } 880 STAILQ_INIT(&fwb->xferlist); 881 #endif 882 883 crit_exit(); 884 return 0; 885 } 886 887 /* 888 * To free transaction label. 889 */ 890 static void 891 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 892 { 893 struct tlabel *tl; 894 895 crit_enter(); 896 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 897 tl = STAILQ_NEXT(tl, link)){ 898 if(tl->xfer == xfer){ 899 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 900 kfree(tl, M_FW); 901 break; 902 } 903 } 904 crit_exit(); 905 } 906 907 /* 908 * To obtain XFER structure by transaction label. 909 */ 910 static struct fw_xfer * 911 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 912 { 913 struct fw_xfer *xfer; 914 struct tlabel *tl; 915 916 crit_enter(); 917 918 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 919 tl = STAILQ_NEXT(tl, link)){ 920 if(tl->xfer->send.hdr.mode.hdr.dst == node){ 921 xfer = tl->xfer; 922 crit_exit(); 923 if (firewire_debug > 2) 924 kprintf("fw_tl2xfer: found tl=%d\n", tlabel); 925 return(xfer); 926 } 927 } 928 if (firewire_debug > 1) 929 kprintf("fw_tl2xfer: not found tl=%d\n", tlabel); 930 crit_exit(); 931 return(NULL); 932 } 933 934 /* 935 * To allocate IEEE1394 XFER structure. 936 */ 937 struct fw_xfer * 938 fw_xfer_alloc(struct malloc_type *type) 939 { 940 struct fw_xfer *xfer; 941 942 xfer = kmalloc(sizeof(struct fw_xfer), type, M_INTWAIT | M_ZERO); 943 xfer->malloc = type; 944 945 return xfer; 946 } 947 948 struct fw_xfer * 949 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 950 { 951 struct fw_xfer *xfer; 952 953 xfer = fw_xfer_alloc(type); 954 if (xfer == NULL) 955 return(NULL); 956 xfer->send.pay_len = send_len; 957 xfer->recv.pay_len = recv_len; 958 if (send_len > 0) { 959 xfer->send.payload = kmalloc(send_len, type, M_INTWAIT | M_ZERO); 960 if (xfer->send.payload == NULL) { 961 fw_xfer_free(xfer); 962 return(NULL); 963 } 964 } 965 if (recv_len > 0) { 966 xfer->recv.payload = kmalloc(recv_len, type, M_INTWAIT); 967 if (xfer->recv.payload == NULL) { 968 if (xfer->send.payload != NULL) 969 kfree(xfer->send.payload, type); 970 fw_xfer_free(xfer); 971 return(NULL); 972 } 973 } 974 return(xfer); 975 } 976 977 /* 978 * IEEE1394 XFER post process. 979 */ 980 void 981 fw_xfer_done(struct fw_xfer *xfer) 982 { 983 if (xfer->act.hand == NULL) { 984 kprintf("act.hand == NULL\n"); 985 return; 986 } 987 988 if (xfer->fc == NULL) 989 panic("fw_xfer_done: why xfer->fc is NULL?"); 990 991 xfer->act.hand(xfer); 992 } 993 994 void 995 fw_xfer_unload(struct fw_xfer* xfer) 996 { 997 if(xfer == NULL ) return; 998 if(xfer->state == FWXF_INQ){ 999 kprintf("fw_xfer_free FWXF_INQ\n"); 1000 crit_enter(); 1001 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1002 xfer->q->queued --; 1003 crit_exit(); 1004 } 1005 if (xfer->fc != NULL) { 1006 #if 1 1007 if(xfer->state == FWXF_START) 1008 /* 1009 * This could happen if: 1010 * 1. We call fwohci_arcv() before fwohci_txd(). 1011 * 2. firewire_watch() is called. 1012 */ 1013 kprintf("fw_xfer_free FWXF_START\n"); 1014 #endif 1015 fw_tl_free(xfer->fc, xfer); 1016 } 1017 xfer->state = FWXF_INIT; 1018 xfer->resp = 0; 1019 xfer->retry = 0; 1020 } 1021 /* 1022 * To free IEEE1394 XFER structure. 1023 */ 1024 void 1025 fw_xfer_free_buf( struct fw_xfer* xfer) 1026 { 1027 if (xfer == NULL) { 1028 kprintf("%s: xfer == NULL\n", __func__); 1029 return; 1030 } 1031 fw_xfer_unload(xfer); 1032 if(xfer->send.payload != NULL){ 1033 kfree(xfer->send.payload, xfer->malloc); 1034 } 1035 if(xfer->recv.payload != NULL){ 1036 kfree(xfer->recv.payload, xfer->malloc); 1037 } 1038 kfree(xfer, xfer->malloc); 1039 } 1040 1041 void 1042 fw_xfer_free( struct fw_xfer* xfer) 1043 { 1044 if (xfer == NULL) { 1045 kprintf("%s: xfer == NULL\n", __func__); 1046 return; 1047 } 1048 fw_xfer_unload(xfer); 1049 kfree(xfer, xfer->malloc); 1050 } 1051 1052 void 1053 fw_asy_callback_free(struct fw_xfer *xfer) 1054 { 1055 #if 0 1056 kprintf("asyreq done state=%d resp=%d\n", 1057 xfer->state, xfer->resp); 1058 #endif 1059 fw_xfer_free(xfer); 1060 } 1061 1062 /* 1063 * To configure PHY. 1064 */ 1065 static void 1066 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1067 { 1068 struct fw_xfer *xfer; 1069 struct fw_pkt *fp; 1070 1071 fc->status = FWBUSPHYCONF; 1072 1073 xfer = fw_xfer_alloc(M_FWXFER); 1074 if (xfer == NULL) 1075 return; 1076 xfer->fc = fc; 1077 xfer->retry_req = fw_asybusy; 1078 xfer->act.hand = fw_asy_callback_free; 1079 1080 fp = &xfer->send.hdr; 1081 fp->mode.ld[1] = 0; 1082 if (root_node >= 0) 1083 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1084 if (gap_count >= 0) 1085 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1086 fp->mode.ld[2] = ~fp->mode.ld[1]; 1087 /* XXX Dangerous, how to pass PHY packet to device driver */ 1088 fp->mode.common.tcode |= FWTCODE_PHY; 1089 1090 if (firewire_debug) 1091 kprintf("send phy_config root_node=%d gap_count=%d\n", 1092 root_node, gap_count); 1093 fw_asyreq(fc, -1, xfer); 1094 } 1095 1096 #if 0 1097 /* 1098 * Dump self ID. 1099 */ 1100 static void 1101 fw_print_sid(u_int32_t sid) 1102 { 1103 union fw_self_id *s; 1104 s = (union fw_self_id *) &sid; 1105 kprintf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1106 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1107 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1108 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1109 s->p0.power_class, s->p0.port0, s->p0.port1, 1110 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1111 } 1112 #endif 1113 1114 /* 1115 * To receive self ID. 1116 */ 1117 void 1118 fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) 1119 { 1120 u_int32_t *p; 1121 union fw_self_id *self_id; 1122 u_int i, j, node, c_port = 0, i_branch = 0; 1123 1124 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1125 fc->status = FWBUSINIT; 1126 fc->max_node = fc->nodeid & 0x3f; 1127 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1128 fc->status = FWBUSCYMELECT; 1129 fc->topology_map->crc_len = 2; 1130 fc->topology_map->generation ++; 1131 fc->topology_map->self_id_count = 0; 1132 fc->topology_map->node_count = 0; 1133 fc->speed_map->generation ++; 1134 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1135 self_id = &fc->topology_map->self_id[0]; 1136 for(i = 0; i < fc->sid_cnt; i ++){ 1137 if (sid[1] != ~sid[0]) { 1138 kprintf("fw_sidrcv: invalid self-id packet\n"); 1139 sid += 2; 1140 continue; 1141 } 1142 *self_id = *((union fw_self_id *)sid); 1143 fc->topology_map->crc_len++; 1144 if(self_id->p0.sequel == 0){ 1145 fc->topology_map->node_count ++; 1146 c_port = 0; 1147 #if 0 1148 fw_print_sid(sid[0]); 1149 #endif 1150 node = self_id->p0.phy_id; 1151 if(fc->max_node < node){ 1152 fc->max_node = self_id->p0.phy_id; 1153 } 1154 /* XXX I'm not sure this is the right speed_map */ 1155 fc->speed_map->speed[node][node] 1156 = self_id->p0.phy_speed; 1157 for (j = 0; j < node; j ++) { 1158 fc->speed_map->speed[j][node] 1159 = fc->speed_map->speed[node][j] 1160 = min(fc->speed_map->speed[j][j], 1161 self_id->p0.phy_speed); 1162 } 1163 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1164 (self_id->p0.link_active && self_id->p0.contender)) { 1165 fc->irm = self_id->p0.phy_id; 1166 } 1167 if(self_id->p0.port0 >= 0x2){ 1168 c_port++; 1169 } 1170 if(self_id->p0.port1 >= 0x2){ 1171 c_port++; 1172 } 1173 if(self_id->p0.port2 >= 0x2){ 1174 c_port++; 1175 } 1176 } 1177 if(c_port > 2){ 1178 i_branch += (c_port - 2); 1179 } 1180 sid += 2; 1181 self_id++; 1182 fc->topology_map->self_id_count ++; 1183 } 1184 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1185 /* CRC */ 1186 fc->topology_map->crc = fw_crc16( 1187 (u_int32_t *)&fc->topology_map->generation, 1188 fc->topology_map->crc_len * 4); 1189 fc->speed_map->crc = fw_crc16( 1190 (u_int32_t *)&fc->speed_map->generation, 1191 fc->speed_map->crc_len * 4); 1192 /* byteswap and copy to CSR */ 1193 p = (u_int32_t *)fc->topology_map; 1194 for (i = 0; i <= fc->topology_map->crc_len; i++) 1195 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1196 p = (u_int32_t *)fc->speed_map; 1197 CSRARC(fc, SPED_MAP) = htonl(*p++); 1198 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1199 /* don't byte-swap u_int8_t array */ 1200 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1201 1202 fc->max_hop = fc->max_node - i_branch; 1203 kprintf(", maxhop <= %d", fc->max_hop); 1204 1205 if(fc->irm == -1 ){ 1206 kprintf(", Not found IRM capable node"); 1207 }else{ 1208 kprintf(", cable IRM = %d", fc->irm); 1209 if (fc->irm == fc->nodeid) 1210 kprintf(" (me)"); 1211 } 1212 kprintf("\n"); 1213 1214 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1215 if (fc->irm == fc->nodeid) { 1216 fc->status = FWBUSMGRDONE; 1217 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1218 fw_bmr(fc); 1219 } else { 1220 fc->status = FWBUSMGRELECT; 1221 callout_reset(&fc->bmr_callout, hz/8, 1222 (void *)fw_try_bmr, (void *)fc); 1223 } 1224 } else 1225 fc->status = FWBUSMGRDONE; 1226 1227 callout_reset(&fc->busprobe_callout, hz/4, 1228 (void *)fw_bus_probe, (void *)fc); 1229 } 1230 1231 /* 1232 * To probe devices on the IEEE1394 bus. 1233 */ 1234 static void 1235 fw_bus_probe(struct firewire_comm *fc) 1236 { 1237 struct fw_device *fwdev; 1238 1239 crit_enter(); 1240 fc->status = FWBUSEXPLORE; 1241 fc->retry_count = 0; 1242 1243 /* Invalidate all devices, just after bus reset. */ 1244 STAILQ_FOREACH(fwdev, &fc->devices, link) 1245 if (fwdev->status != FWDEVINVAL) { 1246 fwdev->status = FWDEVINVAL; 1247 fwdev->rcnt = 0; 1248 } 1249 1250 fc->ongonode = 0; 1251 fc->ongoaddr = CSRROMOFF; 1252 fc->ongodev = NULL; 1253 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1254 fw_bus_explore(fc); 1255 crit_exit(); 1256 } 1257 1258 /* 1259 * To collect device informations on the IEEE1394 bus. 1260 */ 1261 static void 1262 fw_bus_explore(struct firewire_comm *fc ) 1263 { 1264 int err = 0; 1265 struct fw_device *fwdev, *pfwdev, *tfwdev; 1266 u_int32_t addr; 1267 struct fw_xfer *xfer; 1268 struct fw_pkt *fp; 1269 1270 if(fc->status != FWBUSEXPLORE) 1271 return; 1272 1273 loop: 1274 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1275 1276 if(fc->ongonode > fc->max_node) goto done; 1277 if(fc->ongonode >= 0x3f) goto done; 1278 1279 /* check link */ 1280 /* XXX we need to check phy_id first */ 1281 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1282 if (firewire_debug) 1283 kprintf("node%d: link down\n", fc->ongonode); 1284 fc->ongonode++; 1285 goto loop; 1286 } 1287 1288 if(fc->ongoaddr <= CSRROMOFF && 1289 fc->ongoeui.hi == 0xffffffff && 1290 fc->ongoeui.lo == 0xffffffff ){ 1291 fc->ongoaddr = CSRROMOFF; 1292 addr = 0xf0000000 | fc->ongoaddr; 1293 }else if(fc->ongoeui.hi == 0xffffffff ){ 1294 fc->ongoaddr = CSRROMOFF + 0xc; 1295 addr = 0xf0000000 | fc->ongoaddr; 1296 }else if(fc->ongoeui.lo == 0xffffffff ){ 1297 fc->ongoaddr = CSRROMOFF + 0x10; 1298 addr = 0xf0000000 | fc->ongoaddr; 1299 }else if(fc->ongodev == NULL){ 1300 STAILQ_FOREACH(fwdev, &fc->devices, link) 1301 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1302 break; 1303 if(fwdev != NULL){ 1304 fwdev->dst = fc->ongonode; 1305 fwdev->status = FWDEVINIT; 1306 fc->ongodev = fwdev; 1307 fc->ongoaddr = CSRROMOFF; 1308 addr = 0xf0000000 | fc->ongoaddr; 1309 goto dorequest; 1310 } 1311 fwdev = kmalloc(sizeof(struct fw_device), M_FW, 1312 M_WAITOK | M_ZERO); 1313 fwdev->fc = fc; 1314 fwdev->rommax = 0; 1315 fwdev->dst = fc->ongonode; 1316 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1317 fwdev->status = FWDEVINIT; 1318 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1319 1320 pfwdev = NULL; 1321 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1322 if (tfwdev->eui.hi > fwdev->eui.hi || 1323 (tfwdev->eui.hi == fwdev->eui.hi && 1324 tfwdev->eui.lo > fwdev->eui.lo)) 1325 break; 1326 pfwdev = tfwdev; 1327 } 1328 if (pfwdev == NULL) 1329 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1330 else 1331 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1332 1333 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1334 linkspeed[fwdev->speed], 1335 fc->ongoeui.hi, fc->ongoeui.lo); 1336 1337 fc->ongodev = fwdev; 1338 fc->ongoaddr = CSRROMOFF; 1339 addr = 0xf0000000 | fc->ongoaddr; 1340 }else{ 1341 addr = 0xf0000000 | fc->ongoaddr; 1342 } 1343 dorequest: 1344 #if 0 1345 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1346 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1347 fw_bus_explore_callback); 1348 if(xfer == NULL) goto done; 1349 #else 1350 xfer = fw_xfer_alloc(M_FWXFER); 1351 if(xfer == NULL){ 1352 goto done; 1353 } 1354 xfer->send.spd = 0; 1355 fp = &xfer->send.hdr; 1356 fp->mode.rreqq.dest_hi = 0xffff; 1357 fp->mode.rreqq.tlrt = 0; 1358 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1359 fp->mode.rreqq.pri = 0; 1360 fp->mode.rreqq.src = 0; 1361 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode; 1362 fp->mode.rreqq.dest_lo = addr; 1363 xfer->act.hand = fw_bus_explore_callback; 1364 1365 if (firewire_debug) 1366 kprintf("node%d: explore addr=0x%x\n", 1367 fc->ongonode, fc->ongoaddr); 1368 err = fw_asyreq(fc, -1, xfer); 1369 if(err){ 1370 fw_xfer_free( xfer); 1371 return; 1372 } 1373 #endif 1374 return; 1375 done: 1376 /* fw_attach_devs */ 1377 fc->status = FWBUSEXPDONE; 1378 if (firewire_debug) 1379 kprintf("bus_explore done\n"); 1380 fw_attach_dev(fc); 1381 return; 1382 1383 } 1384 1385 /* Portable Async. request read quad */ 1386 struct fw_xfer * 1387 asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1388 u_int32_t addr_hi, u_int32_t addr_lo, 1389 void (*hand) (struct fw_xfer*)) 1390 { 1391 struct fw_xfer *xfer; 1392 struct fw_pkt *fp; 1393 int err; 1394 1395 xfer = fw_xfer_alloc(M_FWXFER); 1396 if (xfer == NULL) 1397 return NULL; 1398 1399 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */ 1400 fp = &xfer->send.hdr; 1401 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1402 if(tl & FWP_TL_VALID){ 1403 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1404 }else{ 1405 fp->mode.rreqq.tlrt = 0; 1406 } 1407 fp->mode.rreqq.tlrt |= rt & 0x3; 1408 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1409 fp->mode.rreqq.pri = 0; 1410 fp->mode.rreqq.src = 0; 1411 fp->mode.rreqq.dst = addr_hi >> 16; 1412 fp->mode.rreqq.dest_lo = addr_lo; 1413 xfer->act.hand = hand; 1414 1415 err = fw_asyreq(fc, -1, xfer); 1416 if(err){ 1417 fw_xfer_free( xfer); 1418 return NULL; 1419 } 1420 return xfer; 1421 } 1422 1423 /* 1424 * Callback for the IEEE1394 bus information collection. 1425 */ 1426 static void 1427 fw_bus_explore_callback(struct fw_xfer *xfer) 1428 { 1429 struct firewire_comm *fc; 1430 struct fw_pkt *sfp,*rfp; 1431 struct csrhdr *chdr; 1432 struct csrdir *csrd; 1433 struct csrreg *csrreg; 1434 u_int32_t offset; 1435 1436 1437 if(xfer == NULL) { 1438 kprintf("xfer == NULL\n"); 1439 return; 1440 } 1441 fc = xfer->fc; 1442 1443 if (firewire_debug) 1444 kprintf("node%d: callback addr=0x%x\n", 1445 fc->ongonode, fc->ongoaddr); 1446 1447 if(xfer->resp != 0){ 1448 kprintf("node%d: resp=%d addr=0x%x\n", 1449 fc->ongonode, xfer->resp, fc->ongoaddr); 1450 goto errnode; 1451 } 1452 1453 sfp = &xfer->send.hdr; 1454 rfp = &xfer->recv.hdr; 1455 #if 0 1456 { 1457 u_int32_t *qld; 1458 int i; 1459 qld = (u_int32_t *)xfer->recv.buf; 1460 kprintf("len:%d\n", xfer->recv.len); 1461 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1462 kprintf("0x%08x ", rfp->mode.ld[i/4]); 1463 if((i % 16) == 15) kprintf("\n"); 1464 } 1465 if((i % 16) != 15) kprintf("\n"); 1466 } 1467 #endif 1468 if(fc->ongodev == NULL){ 1469 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1470 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1471 chdr = (struct csrhdr *)(void *)(&rfp->mode.rresq.data); 1472 /* If CSR is minimal confinguration, more investgation is not needed. */ 1473 if(chdr->info_len == 1){ 1474 if (firewire_debug) 1475 kprintf("node%d: minimal config\n", 1476 fc->ongonode); 1477 goto nextnode; 1478 }else{ 1479 fc->ongoaddr = CSRROMOFF + 0xc; 1480 } 1481 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1482 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1483 fc->ongoaddr = CSRROMOFF + 0x10; 1484 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1485 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1486 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1487 if (firewire_debug) 1488 kprintf("node%d: eui64 is zero.\n", 1489 fc->ongonode); 1490 goto nextnode; 1491 } 1492 fc->ongoaddr = CSRROMOFF; 1493 } 1494 }else{ 1495 if (fc->ongoaddr == CSRROMOFF && 1496 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1497 fc->ongodev->status = FWDEVATTACHED; 1498 goto nextnode; 1499 } 1500 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1501 if(fc->ongoaddr > fc->ongodev->rommax){ 1502 fc->ongodev->rommax = fc->ongoaddr; 1503 } 1504 csrd = SLIST_FIRST(&fc->ongocsr); 1505 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1506 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1507 offset = CSRROMOFF; 1508 }else{ 1509 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1510 offset = csrd->off; 1511 } 1512 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1513 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1514 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1515 csrd = SLIST_FIRST(&fc->csrfree); 1516 if(csrd == NULL){ 1517 goto nextnode; 1518 }else{ 1519 csrd->ongoaddr = fc->ongoaddr; 1520 fc->ongoaddr += csrreg->val * 4; 1521 csrd->off = fc->ongoaddr; 1522 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1523 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1524 goto nextaddr; 1525 } 1526 } 1527 } 1528 fc->ongoaddr += 4; 1529 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1530 (fc->ongodev->rommax < 0x414)){ 1531 if(fc->ongodev->rommax <= 0x414){ 1532 csrd = SLIST_FIRST(&fc->csrfree); 1533 if(csrd == NULL) goto nextnode; 1534 csrd->off = fc->ongoaddr; 1535 csrd->ongoaddr = fc->ongoaddr; 1536 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1537 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1538 } 1539 goto nextaddr; 1540 } 1541 1542 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1543 if(csrd == NULL){ 1544 goto nextnode; 1545 } 1546 fc->ongoaddr = csrd->ongoaddr + 4; 1547 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1548 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1549 csrd = SLIST_FIRST(&fc->ongocsr); 1550 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1551 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1552 offset = CSRROMOFF; 1553 }else{ 1554 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1555 offset = csrd->off; 1556 } 1557 } 1558 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1559 goto nextnode; 1560 } 1561 } 1562 nextaddr: 1563 fw_xfer_free( xfer); 1564 fw_bus_explore(fc); 1565 return; 1566 errnode: 1567 fc->retry_count++; 1568 if (fc->ongodev != NULL) 1569 fc->ongodev->status = FWDEVINVAL; 1570 nextnode: 1571 fw_xfer_free( xfer); 1572 fc->ongonode++; 1573 /* housekeeping work space */ 1574 fc->ongoaddr = CSRROMOFF; 1575 fc->ongodev = NULL; 1576 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1577 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1578 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1579 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1580 } 1581 fw_bus_explore(fc); 1582 return; 1583 } 1584 1585 /* 1586 * To attach sub-devices layer onto IEEE1394 bus. 1587 */ 1588 static void 1589 fw_attach_dev(struct firewire_comm *fc) 1590 { 1591 struct fw_device *fwdev, *next; 1592 int i, err; 1593 device_t *devlistp; 1594 int devcnt; 1595 struct firewire_dev_comm *fdc; 1596 1597 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1598 next = STAILQ_NEXT(fwdev, link); 1599 if (fwdev->status == FWDEVINIT) { 1600 fwdev->status = FWDEVATTACHED; 1601 } else if (fwdev->status == FWDEVINVAL) { 1602 fwdev->rcnt ++; 1603 if (fwdev->rcnt > hold_count) { 1604 /* 1605 * Remove devices which have not been seen 1606 * for a while. 1607 */ 1608 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1609 link); 1610 kfree(fwdev, M_FW); 1611 } 1612 } 1613 } 1614 1615 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1616 if( err != 0 ) 1617 return; 1618 for( i = 0 ; i < devcnt ; i++){ 1619 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1620 fdc = device_get_softc(devlistp[i]); 1621 if (fdc->post_explore != NULL) 1622 fdc->post_explore(fdc); 1623 } 1624 } 1625 kfree(devlistp, M_TEMP); 1626 1627 if (fc->retry_count > 0) { 1628 kprintf("probe failed for %d node\n", fc->retry_count); 1629 #if 0 1630 callout_reset(&fc->retry_probe_callout, hz*2, 1631 (void *)fc->ibr, (void *)fc); 1632 #endif 1633 } 1634 return; 1635 } 1636 1637 /* 1638 * To allocate uniq transaction label. 1639 */ 1640 static int 1641 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1642 { 1643 u_int i; 1644 struct tlabel *tl, *tmptl; 1645 static u_int32_t label = 0; 1646 1647 crit_enter(); 1648 for( i = 0 ; i < 0x40 ; i ++){ 1649 label = (label + 1) & 0x3f; 1650 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1651 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1652 if (tmptl->xfer->send.hdr.mode.hdr.dst == 1653 xfer->send.hdr.mode.hdr.dst) 1654 break; 1655 } 1656 if(tmptl == NULL) { 1657 tl = kmalloc(sizeof(struct tlabel), M_FW, M_WAITOK); 1658 tl->xfer = xfer; 1659 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1660 crit_exit(); 1661 if (firewire_debug > 1) 1662 kprintf("fw_get_tlabel: dst=%d tl=%d\n", 1663 xfer->send.hdr.mode.hdr.dst, label); 1664 return(label); 1665 } 1666 } 1667 crit_exit(); 1668 1669 kprintf("fw_get_tlabel: no free tlabel\n"); 1670 return(-1); 1671 } 1672 1673 static void 1674 fw_rcv_copy(struct fw_rcv_buf *rb) 1675 { 1676 struct fw_pkt *pkt; 1677 u_char *p; 1678 struct tcode_info *tinfo; 1679 u_int res, i, len, plen; 1680 1681 rb->xfer->recv.spd -= rb->spd; 1682 1683 pkt = (struct fw_pkt *)rb->vec->iov_base; 1684 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1685 1686 /* Copy header */ 1687 p = (u_char *)&rb->xfer->recv.hdr; 1688 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1689 rb->vec->iov_base = (uint8_t *)rb->vec->iov_base + tinfo->hdr_len; 1690 rb->vec->iov_len -= tinfo->hdr_len; 1691 1692 /* Copy payload */ 1693 p = (u_char *)rb->xfer->recv.payload; 1694 res = rb->xfer->recv.pay_len; 1695 1696 /* special handling for RRESQ */ 1697 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1698 p != NULL && res >= sizeof(u_int32_t)) { 1699 *(u_int32_t *)p = pkt->mode.rresq.data; 1700 rb->xfer->recv.pay_len = sizeof(u_int32_t); 1701 return; 1702 } 1703 1704 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1705 return; 1706 1707 plen = pkt->mode.rresb.len; 1708 1709 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1710 len = MIN(rb->vec->iov_len, plen); 1711 if (res < len) { 1712 kprintf("rcv buffer(%d) is %d bytes short.\n", 1713 rb->xfer->recv.pay_len, len - res); 1714 len = res; 1715 } 1716 bcopy(rb->vec->iov_base, p, len); 1717 p += len; 1718 res -= len; 1719 plen -= len; 1720 if (res == 0 || plen == 0) 1721 break; 1722 } 1723 rb->xfer->recv.pay_len -= res; 1724 1725 } 1726 1727 /* 1728 * Generic packet receving process. 1729 */ 1730 void 1731 fw_rcv(struct fw_rcv_buf *rb) 1732 { 1733 struct fw_pkt *fp, *resfp; 1734 struct fw_bind *bind; 1735 int tcode; 1736 int i, len, oldstate; 1737 #if 0 1738 { 1739 u_int32_t *qld; 1740 int i; 1741 qld = (u_int32_t *)buf; 1742 kprintf("spd %d len:%d\n", spd, len); 1743 for( i = 0 ; i <= len && i < 32; i+= 4){ 1744 kprintf("0x%08x ", ntohl(qld[i/4])); 1745 if((i % 16) == 15) kprintf("\n"); 1746 } 1747 if((i % 16) != 15) kprintf("\n"); 1748 } 1749 #endif 1750 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1751 tcode = fp->mode.common.tcode; 1752 switch (tcode) { 1753 case FWTCODE_WRES: 1754 case FWTCODE_RRESQ: 1755 case FWTCODE_RRESB: 1756 case FWTCODE_LRES: 1757 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1758 fp->mode.hdr.tlrt >> 2); 1759 if(rb->xfer == NULL) { 1760 kprintf("fw_rcv: unknown response " 1761 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1762 tcode_str[tcode], tcode, 1763 fp->mode.hdr.src, 1764 fp->mode.hdr.tlrt >> 2, 1765 fp->mode.hdr.tlrt & 3, 1766 fp->mode.rresq.data); 1767 #if 1 1768 kprintf("try ad-hoc work around!!\n"); 1769 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1770 (fp->mode.hdr.tlrt >> 2)^3); 1771 if (rb->xfer == NULL) { 1772 kprintf("no use...\n"); 1773 goto err; 1774 } 1775 #else 1776 goto err; 1777 #endif 1778 } 1779 fw_rcv_copy(rb); 1780 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1781 rb->xfer->resp = EIO; 1782 else 1783 rb->xfer->resp = 0; 1784 /* make sure the packet is drained in AT queue */ 1785 oldstate = rb->xfer->state; 1786 rb->xfer->state = FWXF_RCVD; 1787 switch (oldstate) { 1788 case FWXF_SENT: 1789 fw_xfer_done(rb->xfer); 1790 break; 1791 case FWXF_START: 1792 #if 0 1793 if (firewire_debug) 1794 kprintf("not sent yet tl=%x\n", rb->xfer->tl); 1795 #endif 1796 break; 1797 default: 1798 kprintf("unexpected state %d\n", rb->xfer->state); 1799 } 1800 return; 1801 case FWTCODE_WREQQ: 1802 case FWTCODE_WREQB: 1803 case FWTCODE_RREQQ: 1804 case FWTCODE_RREQB: 1805 case FWTCODE_LREQ: 1806 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1807 fp->mode.rreqq.dest_lo); 1808 if(bind == NULL){ 1809 kprintf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1810 " src=0x%x data=%x\n", 1811 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1812 tcode_str[tcode], tcode, 1813 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1814 if (rb->fc->status == FWBUSRESET) { 1815 kprintf("fw_rcv: cannot respond(bus reset)!\n"); 1816 goto err; 1817 } 1818 rb->xfer = fw_xfer_alloc(M_FWXFER); 1819 if(rb->xfer == NULL){ 1820 return; 1821 } 1822 rb->xfer->send.spd = rb->spd; 1823 rb->xfer->send.pay_len = 0; 1824 resfp = &rb->xfer->send.hdr; 1825 switch (tcode) { 1826 case FWTCODE_WREQQ: 1827 case FWTCODE_WREQB: 1828 resfp->mode.hdr.tcode = FWTCODE_WRES; 1829 break; 1830 case FWTCODE_RREQQ: 1831 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1832 break; 1833 case FWTCODE_RREQB: 1834 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1835 break; 1836 case FWTCODE_LREQ: 1837 resfp->mode.hdr.tcode = FWTCODE_LRES; 1838 break; 1839 } 1840 resfp->mode.hdr.dst = fp->mode.hdr.src; 1841 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1842 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1843 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1844 resfp->mode.rresb.extcode = 0; 1845 resfp->mode.rresb.len = 0; 1846 /* 1847 rb->xfer->act.hand = fw_asy_callback; 1848 */ 1849 rb->xfer->act.hand = fw_xfer_free; 1850 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1851 fw_xfer_free(rb->xfer); 1852 return; 1853 } 1854 goto err; 1855 } 1856 len = 0; 1857 for (i = 0; i < rb->nvec; i ++) 1858 len += rb->vec[i].iov_len; 1859 switch(bind->act_type){ 1860 case FWACT_XFER: 1861 crit_enter(); 1862 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1863 if (rb->xfer == NULL) { 1864 kprintf("Discard a packet for this bind.\n"); 1865 crit_exit(); 1866 goto err; 1867 } 1868 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1869 crit_exit(); 1870 fw_rcv_copy(rb); 1871 rb->xfer->act.hand(rb->xfer); 1872 return; 1873 break; 1874 case FWACT_CH: 1875 if(rb->fc->ir[bind->sub]->queued >= 1876 rb->fc->ir[bind->sub]->maxq){ 1877 device_printf(rb->fc->bdev, 1878 "Discard a packet %x %d\n", 1879 bind->sub, 1880 rb->fc->ir[bind->sub]->queued); 1881 goto err; 1882 } 1883 crit_enter(); 1884 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1885 if (rb->xfer == NULL) { 1886 kprintf("Discard packet for this bind\n"); 1887 crit_exit(); 1888 goto err; 1889 } 1890 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1891 crit_exit(); 1892 fw_rcv_copy(rb); 1893 crit_enter(); 1894 rb->fc->ir[bind->sub]->queued++; 1895 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q, 1896 rb->xfer, link); 1897 crit_exit(); 1898 1899 wakeup((caddr_t)rb->fc->ir[bind->sub]); 1900 1901 return; 1902 break; 1903 default: 1904 goto err; 1905 break; 1906 } 1907 break; 1908 #if 0 /* shouldn't happen ?? or for GASP */ 1909 case FWTCODE_STREAM: 1910 { 1911 struct fw_xferq *xferq; 1912 1913 xferq = rb->fc->ir[sub]; 1914 #if 0 1915 kprintf("stream rcv dma %d len %d off %d spd %d\n", 1916 sub, len, off, spd); 1917 #endif 1918 if(xferq->queued >= xferq->maxq) { 1919 kprintf("receive queue is full\n"); 1920 goto err; 1921 } 1922 /* XXX get xfer from xfer queue, we don't need copy for 1923 per packet mode */ 1924 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1925 vec[0].iov_len); 1926 if (rb->xfer == NULL) goto err; 1927 fw_rcv_copy(rb) 1928 crit_enter(); 1929 xferq->queued++; 1930 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1931 crit_exit(); 1932 sc = device_get_softc(rb->fc->bdev); 1933 KNOTE(&xferq->rkq.ki_note, 0); 1934 if (xferq->flag & FWXFERQ_WAKEUP) { 1935 xferq->flag &= ~FWXFERQ_WAKEUP; 1936 wakeup((caddr_t)xferq); 1937 } 1938 if (xferq->flag & FWXFERQ_HANDLER) { 1939 xferq->hand(xferq); 1940 } 1941 return; 1942 break; 1943 } 1944 #endif 1945 default: 1946 kprintf("fw_rcv: unknown tcode %d\n", tcode); 1947 break; 1948 } 1949 err: 1950 return; 1951 } 1952 1953 /* 1954 * Post process for Bus Manager election process. 1955 */ 1956 static void 1957 fw_try_bmr_callback(struct fw_xfer *xfer) 1958 { 1959 struct firewire_comm *fc; 1960 int bmr; 1961 1962 if (xfer == NULL) 1963 return; 1964 fc = xfer->fc; 1965 if (xfer->resp != 0) 1966 goto error; 1967 if (xfer->recv.payload == NULL) 1968 goto error; 1969 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 1970 goto error; 1971 1972 bmr = ntohl(xfer->recv.payload[0]); 1973 if (bmr == 0x3f) 1974 bmr = fc->nodeid; 1975 1976 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 1977 fw_xfer_free_buf(xfer); 1978 fw_bmr(fc); 1979 return; 1980 1981 error: 1982 device_printf(fc->bdev, "bus manager election failed\n"); 1983 fw_xfer_free_buf(xfer); 1984 } 1985 1986 1987 /* 1988 * To candidate Bus Manager election process. 1989 */ 1990 static void 1991 fw_try_bmr(void *arg) 1992 { 1993 struct fw_xfer *xfer; 1994 struct firewire_comm *fc = (struct firewire_comm *)arg; 1995 struct fw_pkt *fp; 1996 int err = 0; 1997 1998 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 1999 if(xfer == NULL){ 2000 return; 2001 } 2002 xfer->send.spd = 0; 2003 fc->status = FWBUSMGRELECT; 2004 2005 fp = &xfer->send.hdr; 2006 fp->mode.lreq.dest_hi = 0xffff; 2007 fp->mode.lreq.tlrt = 0; 2008 fp->mode.lreq.tcode = FWTCODE_LREQ; 2009 fp->mode.lreq.pri = 0; 2010 fp->mode.lreq.src = 0; 2011 fp->mode.lreq.len = 8; 2012 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2013 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2014 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2015 xfer->send.payload[0] = htonl(0x3f); 2016 xfer->send.payload[1] = htonl(fc->nodeid); 2017 xfer->act.hand = fw_try_bmr_callback; 2018 2019 err = fw_asyreq(fc, -1, xfer); 2020 if(err){ 2021 fw_xfer_free_buf(xfer); 2022 return; 2023 } 2024 return; 2025 } 2026 2027 #ifdef FW_VMACCESS 2028 /* 2029 * Software implementation for physical memory block access. 2030 * XXX:Too slow, usef for debug purpose only. 2031 */ 2032 static void 2033 fw_vmaccess(struct fw_xfer *xfer){ 2034 struct fw_pkt *rfp, *sfp = NULL; 2035 u_int32_t *ld = (u_int32_t *)xfer->recv.buf; 2036 2037 kprintf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2038 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2039 kprintf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2040 if(xfer->resp != 0){ 2041 fw_xfer_free( xfer); 2042 return; 2043 } 2044 if(xfer->recv.buf == NULL){ 2045 fw_xfer_free( xfer); 2046 return; 2047 } 2048 rfp = (struct fw_pkt *)xfer->recv.buf; 2049 switch(rfp->mode.hdr.tcode){ 2050 /* XXX need fix for 64bit arch */ 2051 case FWTCODE_WREQB: 2052 xfer->send.buf = kmalloc(12, M_FW, M_WAITOK); 2053 xfer->send.len = 12; 2054 sfp = (struct fw_pkt *)xfer->send.buf; 2055 bcopy(rfp->mode.wreqb.payload, 2056 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2057 sfp->mode.wres.tcode = FWTCODE_WRES; 2058 sfp->mode.wres.rtcode = 0; 2059 break; 2060 case FWTCODE_WREQQ: 2061 xfer->send.buf = kmalloc(12, M_FW, M_WAITOK); 2062 xfer->send.len = 12; 2063 sfp->mode.wres.tcode = FWTCODE_WRES; 2064 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2065 sfp->mode.wres.rtcode = 0; 2066 break; 2067 case FWTCODE_RREQB: 2068 xfer->send.buf = kmalloc(16 + rfp->mode.rreqb.len, M_FW, M_WAITOK); 2069 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2070 sfp = (struct fw_pkt *)xfer->send.buf; 2071 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2072 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2073 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2074 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2075 sfp->mode.rresb.rtcode = 0; 2076 sfp->mode.rresb.extcode = 0; 2077 break; 2078 case FWTCODE_RREQQ: 2079 xfer->send.buf = kmalloc(16, M_FW, M_WAITOK); 2080 xfer->send.len = 16; 2081 sfp = (struct fw_pkt *)xfer->send.buf; 2082 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2083 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2084 sfp->mode.rresb.rtcode = 0; 2085 break; 2086 default: 2087 fw_xfer_free( xfer); 2088 return; 2089 } 2090 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2091 xfer->dst = ntohs(rfp->mode.hdr.src); 2092 xfer->act.hand = fw_xfer_free; 2093 xfer->retry_req = fw_asybusy; 2094 2095 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2096 sfp->mode.hdr.pri = 0; 2097 2098 fw_asyreq(xfer->fc, -1, xfer); 2099 /**/ 2100 return; 2101 } 2102 #endif 2103 2104 /* 2105 * CRC16 check-sum for IEEE1394 register blocks. 2106 */ 2107 u_int16_t 2108 fw_crc16(u_int32_t *ptr, u_int32_t len){ 2109 u_int32_t i, sum, crc = 0; 2110 int shift; 2111 len = (len + 3) & ~3; 2112 for(i = 0 ; i < len ; i+= 4){ 2113 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2114 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2115 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2116 } 2117 crc &= 0xffff; 2118 } 2119 return((u_int16_t) crc); 2120 } 2121 2122 static int 2123 fw_bmr(struct firewire_comm *fc) 2124 { 2125 struct fw_device fwdev; 2126 union fw_self_id *self_id; 2127 int cmstr; 2128 u_int32_t quad; 2129 2130 /* Check to see if the current root node is cycle master capable */ 2131 self_id = &fc->topology_map->self_id[fc->max_node]; 2132 if (fc->max_node > 0) { 2133 /* XXX check cmc bit of businfo block rather than contender */ 2134 if (self_id->p0.link_active && self_id->p0.contender) 2135 cmstr = fc->max_node; 2136 else { 2137 device_printf(fc->bdev, 2138 "root node is not cycle master capable\n"); 2139 /* XXX shall we be the cycle master? */ 2140 cmstr = fc->nodeid; 2141 /* XXX need bus reset */ 2142 } 2143 } else 2144 cmstr = -1; 2145 2146 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2147 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2148 /* We are not the bus manager */ 2149 kprintf("\n"); 2150 return(0); 2151 } 2152 kprintf("(me)\n"); 2153 2154 /* Optimize gapcount */ 2155 if(fc->max_hop <= MAX_GAPHOP ) 2156 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2157 /* If we are the cycle master, nothing to do */ 2158 if (cmstr == fc->nodeid || cmstr == -1) 2159 return 0; 2160 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2161 bzero(&fwdev, sizeof(fwdev)); 2162 fwdev.fc = fc; 2163 fwdev.dst = cmstr; 2164 fwdev.speed = 0; 2165 fwdev.maxrec = 8; /* 512 */ 2166 fwdev.status = FWDEVINIT; 2167 /* Set cmstr bit on the cycle master */ 2168 quad = htonl(1 << 8); 2169 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2170 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2171 2172 return 0; 2173 } 2174 2175 static int 2176 fw_modevent(module_t mode, int type, void *data) 2177 { 2178 int err = 0; 2179 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2180 static eventhandler_tag fwdev_ehtag = NULL; 2181 #endif 2182 2183 switch (type) { 2184 case MOD_LOAD: 2185 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2186 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2187 fwdev_clone, 0, 1000); 2188 #endif 2189 break; 2190 case MOD_UNLOAD: 2191 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2192 if (fwdev_ehtag != NULL) 2193 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2194 #endif 2195 break; 2196 case MOD_SHUTDOWN: 2197 break; 2198 } 2199 return (err); 2200 } 2201 2202 /* 2203 * This causes the firewire identify to be called for any attached fwohci 2204 * device in the system. 2205 */ 2206 DECLARE_DUMMY_MODULE(firewire); 2207 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,NULL); 2208 MODULE_VERSION(firewire, 1); 2209