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