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 * $FreeBSD$ 35 * 36 */ 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/types.h> 41 42 #include <sys/kernel.h> 43 #include <sys/malloc.h> 44 #include <sys/conf.h> 45 #include <sys/sysctl.h> 46 47 #if defined(__DragonFly__) || __FreeBSD_version < 500000 48 #include <machine/clock.h> /* for DELAY() */ 49 #endif 50 51 #include <sys/bus.h> /* used by smbus and newbus */ 52 #include <machine/bus.h> 53 54 #ifdef __DragonFly__ 55 #include "firewire.h" 56 #include "firewirereg.h" 57 #include "fwmem.h" 58 #include "iec13213.h" 59 #include "iec68113.h" 60 #else 61 #include <dev/firewire/firewire.h> 62 #include <dev/firewire/firewirereg.h> 63 #include <dev/firewire/fwmem.h> 64 #include <dev/firewire/iec13213.h> 65 #include <dev/firewire/iec68113.h> 66 #endif 67 68 struct crom_src_buf { 69 struct crom_src src; 70 struct crom_chunk root; 71 struct crom_chunk vendor; 72 struct crom_chunk hw; 73 }; 74 75 int firewire_debug=0, try_bmr=1, hold_count=3; 76 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 77 "FireWire driver debug flag"); 78 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 79 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 80 "Try to be a bus manager"); 81 SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0, 82 "Number of count of bus resets for removing lost device information"); 83 84 MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 85 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 86 87 #define FW_MAXASYRTY 4 88 89 devclass_t firewire_devclass; 90 91 static void firewire_identify (driver_t *, device_t); 92 static int firewire_probe (device_t); 93 static int firewire_attach (device_t); 94 static int firewire_detach (device_t); 95 static int firewire_resume (device_t); 96 #if 0 97 static int firewire_shutdown (device_t); 98 #endif 99 static device_t firewire_add_child (device_t, int, const char *, int); 100 static void fw_try_bmr (void *); 101 static void fw_try_bmr_callback (struct fw_xfer *); 102 static void fw_asystart (struct fw_xfer *); 103 static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *); 104 static void fw_bus_probe (struct firewire_comm *); 105 static void fw_bus_explore (struct firewire_comm *); 106 static void fw_bus_explore_callback (struct fw_xfer *); 107 static void fw_attach_dev (struct firewire_comm *); 108 #ifdef FW_VMACCESS 109 static void fw_vmaccess (struct fw_xfer *); 110 #endif 111 struct fw_xfer *asyreqq (struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 112 u_int32_t, u_int32_t, void (*)(struct fw_xfer *)); 113 static int fw_bmr (struct firewire_comm *); 114 115 static device_method_t firewire_methods[] = { 116 /* Device interface */ 117 DEVMETHOD(device_identify, firewire_identify), 118 DEVMETHOD(device_probe, firewire_probe), 119 DEVMETHOD(device_attach, firewire_attach), 120 DEVMETHOD(device_detach, firewire_detach), 121 DEVMETHOD(device_suspend, bus_generic_suspend), 122 DEVMETHOD(device_resume, firewire_resume), 123 DEVMETHOD(device_shutdown, bus_generic_shutdown), 124 125 /* Bus interface */ 126 DEVMETHOD(bus_add_child, firewire_add_child), 127 DEVMETHOD(bus_print_child, bus_generic_print_child), 128 129 { 0, 0 } 130 }; 131 char *linkspeed[] = { 132 "S100", "S200", "S400", "S800", 133 "S1600", "S3200", "undef", "undef" 134 }; 135 136 static char *tcode_str[] = { 137 "WREQQ", "WREQB", "WRES", "undef", 138 "RREQQ", "RREQB", "RRESQ", "RRESB", 139 "CYCS", "LREQ", "STREAM", "LRES", 140 "undef", "undef", "PHY", "undef" 141 }; 142 143 /* IEEE-1394a Table C-2 Gap count as a function of hops*/ 144 #define MAX_GAPHOP 15 145 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 146 21, 24, 26, 29, 32, 35, 37, 40}; 147 148 static driver_t firewire_driver = { 149 "firewire", 150 firewire_methods, 151 sizeof(struct firewire_softc), 152 }; 153 154 /* 155 * Lookup fwdev by node id. 156 */ 157 struct fw_device * 158 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 159 { 160 struct fw_device *fwdev; 161 int s; 162 163 s = splfw(); 164 STAILQ_FOREACH(fwdev, &fc->devices, link) 165 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 166 break; 167 splx(s); 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 int s; 180 181 s = splfw(); 182 STAILQ_FOREACH(fwdev, &fc->devices, link) 183 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 184 break; 185 splx(s); 186 187 if(fwdev == NULL) return NULL; 188 if(fwdev->status == FWDEVINVAL) return NULL; 189 return fwdev; 190 } 191 192 /* 193 * Async. request procedure for userland application. 194 */ 195 int 196 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 197 { 198 int err = 0; 199 struct fw_xferq *xferq; 200 int tl = 0, len; 201 struct fw_pkt *fp; 202 int tcode; 203 struct tcode_info *info; 204 205 if(xfer == NULL) return EINVAL; 206 if(xfer->act.hand == NULL){ 207 printf("act.hand == NULL\n"); 208 return EINVAL; 209 } 210 fp = &xfer->send.hdr; 211 212 tcode = fp->mode.common.tcode & 0xf; 213 info = &fc->tcode[tcode]; 214 if (info->flag == 0) { 215 printf("invalid tcode=%x\n", tcode); 216 return EINVAL; 217 } 218 if (info->flag & FWTI_REQ) 219 xferq = fc->atq; 220 else 221 xferq = fc->ats; 222 len = info->hdr_len; 223 if (xfer->send.pay_len > MAXREC(fc->maxrec)) { 224 printf("send.pay_len > maxrec\n"); 225 return EINVAL; 226 } 227 if (info->flag & FWTI_BLOCK_STR) 228 len = fp->mode.stream.len; 229 else if (info->flag & FWTI_BLOCK_ASY) 230 len = fp->mode.rresb.len; 231 else 232 len = 0; 233 if (len != xfer->send.pay_len){ 234 printf("len(%d) != send.pay_len(%d) %s(%x)\n", 235 len, xfer->send.pay_len, tcode_str[tcode], tcode); 236 return EINVAL; 237 } 238 239 if(xferq->start == NULL){ 240 printf("xferq->start == NULL\n"); 241 return EINVAL; 242 } 243 if(!(xferq->queued < xferq->maxq)){ 244 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 245 xferq->queued); 246 return EINVAL; 247 } 248 249 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 fw_asybusy(struct fw_xfer *xfer){ 276 printf("fw_asybusy\n"); 277 /* 278 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 279 */ 280 #if 0 281 DELAY(20000); 282 #endif 283 fw_asystart(xfer); 284 return; 285 } 286 287 /* 288 * Async. request with given xfer structure. 289 */ 290 static void 291 fw_asystart(struct fw_xfer *xfer) 292 { 293 struct firewire_comm *fc = xfer->fc; 294 int s; 295 if(xfer->retry++ >= fc->max_asyretry){ 296 device_printf(fc->bdev, "max_asyretry exceeded\n"); 297 xfer->resp = EBUSY; 298 xfer->state = FWXF_BUSY; 299 xfer->act.hand(xfer); 300 return; 301 } 302 #if 0 /* XXX allow bus explore packets only after bus rest */ 303 if (fc->status < FWBUSEXPLORE) { 304 xfer->resp = EAGAIN; 305 xfer->state = FWXF_BUSY; 306 if (xfer->act.hand != NULL) 307 xfer->act.hand(xfer); 308 return; 309 } 310 #endif 311 microtime(&xfer->tv); 312 s = splfw(); 313 xfer->state = FWXF_INQ; 314 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 315 xfer->q->queued ++; 316 splx(s); 317 /* XXX just queue for mbuf */ 318 if (xfer->mbuf == NULL) 319 xfer->q->start(fc); 320 return; 321 } 322 323 static void 324 firewire_identify(driver_t *driver, device_t parent) 325 { 326 BUS_ADD_CHILD(parent, 0, "firewire", -1); 327 } 328 329 static int 330 firewire_probe(device_t dev) 331 { 332 device_set_desc(dev, "IEEE1394(FireWire) bus"); 333 return (0); 334 } 335 336 static void 337 firewire_xfer_timeout(struct firewire_comm *fc) 338 { 339 struct fw_xfer *xfer; 340 struct tlabel *tl; 341 struct timeval tv; 342 struct timeval split_timeout; 343 int i, s; 344 345 split_timeout.tv_sec = 0; 346 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 347 348 microtime(&tv); 349 timevalsub(&tv, &split_timeout); 350 351 s = splfw(); 352 for (i = 0; i < 0x40; i ++) { 353 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 354 xfer = tl->xfer; 355 if (timevalcmp(&xfer->tv, &tv, >)) 356 /* the rests are newer than this */ 357 break; 358 if (xfer->state == FWXF_START) 359 /* not sent yet */ 360 break; 361 device_printf(fc->bdev, 362 "split transaction timeout dst=0x%x tl=0x%x state=%d\n", 363 xfer->send.hdr.mode.hdr.dst, i, xfer->state); 364 xfer->resp = ETIMEDOUT; 365 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 366 fw_xfer_done(xfer); 367 } 368 } 369 splx(s); 370 } 371 372 #define WATCHDOC_HZ 10 373 static void 374 firewire_watchdog(void *arg) 375 { 376 struct firewire_comm *fc; 377 static int watchdoc_clock = 0; 378 379 fc = (struct firewire_comm *)arg; 380 381 /* 382 * At boot stage, the device interrupt is disabled and 383 * We encounter a timeout easily. To avoid this, 384 * ignore clock interrupt for a while. 385 */ 386 if (watchdoc_clock > WATCHDOC_HZ * 15) { 387 firewire_xfer_timeout(fc); 388 fc->timeout(fc); 389 } else 390 watchdoc_clock ++; 391 392 callout_reset(&fc->timeout_callout, hz / WATCHDOC_HZ, 393 (void *)firewire_watchdog, (void *)fc); 394 } 395 396 /* 397 * The attach routine. 398 */ 399 static int 400 firewire_attach(device_t dev) 401 { 402 int unit; 403 struct firewire_softc *sc = device_get_softc(dev); 404 device_t pa = device_get_parent(dev); 405 struct firewire_comm *fc; 406 407 fc = (struct firewire_comm *)device_get_softc(pa); 408 sc->fc = fc; 409 fc->status = FWBUSNOTREADY; 410 411 unit = device_get_unit(dev); 412 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 413 414 fwdev_makedev(sc); 415 416 CALLOUT_INIT(&sc->fc->timeout_callout); 417 CALLOUT_INIT(&sc->fc->bmr_callout); 418 CALLOUT_INIT(&sc->fc->retry_probe_callout); 419 CALLOUT_INIT(&sc->fc->busprobe_callout); 420 421 callout_reset(&sc->fc->timeout_callout, hz, 422 (void *)firewire_watchdog, (void *)sc->fc); 423 424 /* Locate our children */ 425 bus_generic_probe(dev); 426 427 /* launch attachement of the added children */ 428 bus_generic_attach(dev); 429 430 /* bus_reset */ 431 fw_busreset(fc); 432 fc->ibr(fc); 433 434 return 0; 435 } 436 437 /* 438 * Attach it as child. 439 */ 440 static device_t 441 firewire_add_child(device_t dev, int order, const char *name, int unit) 442 { 443 device_t child; 444 struct firewire_softc *sc; 445 446 sc = (struct firewire_softc *)device_get_softc(dev); 447 child = device_add_child(dev, name, unit); 448 if (child) { 449 device_set_ivars(child, sc->fc); 450 device_probe_and_attach(child); 451 } 452 453 return child; 454 } 455 456 static int 457 firewire_resume(device_t dev) 458 { 459 struct firewire_softc *sc; 460 461 sc = (struct firewire_softc *)device_get_softc(dev); 462 sc->fc->status = FWBUSNOTREADY; 463 464 bus_generic_resume(dev); 465 466 return(0); 467 } 468 469 /* 470 * Dettach it. 471 */ 472 static int 473 firewire_detach(device_t dev) 474 { 475 struct firewire_softc *sc; 476 struct csrdir *csrd, *next; 477 struct fw_device *fwdev, *fwdev_next; 478 int err; 479 480 sc = (struct firewire_softc *)device_get_softc(dev); 481 if ((err = fwdev_destroydev(sc)) != 0) 482 return err; 483 484 if ((err = bus_generic_detach(dev)) != 0) 485 return err; 486 487 callout_stop(&sc->fc->timeout_callout); 488 callout_stop(&sc->fc->bmr_callout); 489 callout_stop(&sc->fc->retry_probe_callout); 490 callout_stop(&sc->fc->busprobe_callout); 491 492 /* XXX xfree_free and untimeout on all xfers */ 493 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 494 fwdev = fwdev_next) { 495 fwdev_next = STAILQ_NEXT(fwdev, link); 496 free(fwdev, M_FW); 497 } 498 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 499 next = SLIST_NEXT(csrd, link); 500 free(csrd, M_FW); 501 } 502 free(sc->fc->topology_map, M_FW); 503 free(sc->fc->speed_map, M_FW); 504 free(sc->fc->crom_src_buf, M_FW); 505 return(0); 506 } 507 #if 0 508 static int 509 firewire_shutdown( device_t dev ) 510 { 511 return 0; 512 } 513 #endif 514 515 516 static void 517 fw_xferq_drain(struct fw_xferq *xferq) 518 { 519 struct fw_xfer *xfer; 520 521 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 522 STAILQ_REMOVE_HEAD(&xferq->q, link); 523 xferq->queued --; 524 xfer->resp = EAGAIN; 525 fw_xfer_done(xfer); 526 } 527 } 528 529 void 530 fw_drain_txq(struct firewire_comm *fc) 531 { 532 int i; 533 534 fw_xferq_drain(fc->atq); 535 fw_xferq_drain(fc->ats); 536 for(i = 0; i < fc->nisodma; i++) 537 fw_xferq_drain(fc->it[i]); 538 } 539 540 static void 541 fw_reset_csr(struct firewire_comm *fc) 542 { 543 int i; 544 545 CSRARC(fc, STATE_CLEAR) 546 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 547 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 548 CSRARC(fc, NODE_IDS) = 0x3f; 549 550 CSRARC(fc, TOPO_MAP + 8) = 0; 551 fc->irm = -1; 552 553 fc->max_node = -1; 554 555 for(i = 2; i < 0x100/4 - 2 ; i++){ 556 CSRARC(fc, SPED_MAP + i * 4) = 0; 557 } 558 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 559 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 560 CSRARC(fc, RESET_START) = 0; 561 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 562 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 563 CSRARC(fc, CYCLE_TIME) = 0x0; 564 CSRARC(fc, BUS_TIME) = 0x0; 565 CSRARC(fc, BUS_MGR_ID) = 0x3f; 566 CSRARC(fc, BANDWIDTH_AV) = 4915; 567 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 568 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 569 CSRARC(fc, IP_CHANNELS) = (1 << 31); 570 571 CSRARC(fc, CONF_ROM) = 0x04 << 24; 572 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 573 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 574 1 << 28 | 0xff << 16 | 0x09 << 8; 575 CSRARC(fc, CONF_ROM + 0xc) = 0; 576 577 /* DV depend CSRs see blue book */ 578 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 579 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 580 581 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 582 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 583 } 584 585 static void 586 fw_init_crom(struct firewire_comm *fc) 587 { 588 struct crom_src *src; 589 590 fc->crom_src_buf = (struct crom_src_buf *) 591 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 592 if (fc->crom_src_buf == NULL) 593 return; 594 595 src = &fc->crom_src_buf->src; 596 bzero(src, sizeof(struct crom_src)); 597 598 /* BUS info sample */ 599 src->hdr.info_len = 4; 600 601 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 602 603 src->businfo.irmc = 1; 604 src->businfo.cmc = 1; 605 src->businfo.isc = 1; 606 src->businfo.bmc = 1; 607 src->businfo.pmc = 0; 608 src->businfo.cyc_clk_acc = 100; 609 src->businfo.max_rec = fc->maxrec; 610 src->businfo.max_rom = MAXROM_4; 611 src->businfo.generation = 1; 612 src->businfo.link_spd = fc->speed; 613 614 src->businfo.eui64.hi = fc->eui.hi; 615 src->businfo.eui64.lo = fc->eui.lo; 616 617 STAILQ_INIT(&src->chunk_list); 618 619 fc->crom_src = src; 620 fc->crom_root = &fc->crom_src_buf->root; 621 } 622 623 static void 624 fw_reset_crom(struct firewire_comm *fc) 625 { 626 struct crom_src_buf *buf; 627 struct crom_src *src; 628 struct crom_chunk *root; 629 630 if (fc->crom_src_buf == NULL) 631 fw_init_crom(fc); 632 633 buf = fc->crom_src_buf; 634 src = fc->crom_src; 635 root = fc->crom_root; 636 637 STAILQ_INIT(&src->chunk_list); 638 639 bzero(root, sizeof(struct crom_chunk)); 640 crom_add_chunk(src, NULL, root, 0); 641 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 642 /* private company_id */ 643 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 644 #ifdef __DragonFly__ 645 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 646 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version); 647 #else 648 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 649 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 650 #endif 651 crom_add_simple_text(src, root, &buf->hw, hostname); 652 } 653 654 /* 655 * Called after bus reset. 656 */ 657 void 658 fw_busreset(struct firewire_comm *fc) 659 { 660 struct firewire_dev_comm *fdc; 661 struct crom_src *src; 662 device_t *devlistp; 663 void *newrom; 664 int i, devcnt; 665 666 switch(fc->status){ 667 case FWBUSMGRELECT: 668 callout_stop(&fc->bmr_callout); 669 break; 670 default: 671 break; 672 } 673 fc->status = FWBUSRESET; 674 fw_reset_csr(fc); 675 fw_reset_crom(fc); 676 677 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 678 for( i = 0 ; i < devcnt ; i++) 679 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 680 fdc = device_get_softc(devlistp[i]); 681 if (fdc->post_busreset != NULL) 682 fdc->post_busreset(fdc); 683 } 684 free(devlistp, M_TEMP); 685 } 686 687 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 688 src = &fc->crom_src_buf->src; 689 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 690 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 691 /* bump generation and reload */ 692 src->businfo.generation ++; 693 /* generation must be between 0x2 and 0xF */ 694 if (src->businfo.generation < 2) 695 src->businfo.generation ++; 696 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 697 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 698 } 699 free(newrom, M_FW); 700 } 701 702 /* Call once after reboot */ 703 void fw_init(struct firewire_comm *fc) 704 { 705 int i; 706 struct csrdir *csrd; 707 #ifdef FW_VMACCESS 708 struct fw_xfer *xfer; 709 struct fw_bind *fwb; 710 #endif 711 712 fc->max_asyretry = FW_MAXASYRTY; 713 714 fc->arq->queued = 0; 715 fc->ars->queued = 0; 716 fc->atq->queued = 0; 717 fc->ats->queued = 0; 718 719 fc->arq->buf = NULL; 720 fc->ars->buf = NULL; 721 fc->atq->buf = NULL; 722 fc->ats->buf = NULL; 723 724 fc->arq->flag = 0; 725 fc->ars->flag = 0; 726 fc->atq->flag = 0; 727 fc->ats->flag = 0; 728 729 STAILQ_INIT(&fc->atq->q); 730 STAILQ_INIT(&fc->ats->q); 731 732 for( i = 0 ; i < fc->nisodma ; i ++ ){ 733 fc->it[i]->queued = 0; 734 fc->ir[i]->queued = 0; 735 736 fc->it[i]->start = NULL; 737 fc->ir[i]->start = NULL; 738 739 fc->it[i]->buf = NULL; 740 fc->ir[i]->buf = NULL; 741 742 fc->it[i]->flag = FWXFERQ_STREAM; 743 fc->ir[i]->flag = FWXFERQ_STREAM; 744 745 STAILQ_INIT(&fc->it[i]->q); 746 STAILQ_INIT(&fc->ir[i]->q); 747 748 STAILQ_INIT(&fc->it[i]->binds); 749 STAILQ_INIT(&fc->ir[i]->binds); 750 } 751 752 fc->arq->maxq = FWMAXQUEUE; 753 fc->ars->maxq = FWMAXQUEUE; 754 fc->atq->maxq = FWMAXQUEUE; 755 fc->ats->maxq = FWMAXQUEUE; 756 757 for( i = 0 ; i < fc->nisodma ; i++){ 758 fc->ir[i]->maxq = FWMAXQUEUE; 759 fc->it[i]->maxq = FWMAXQUEUE; 760 } 761 /* Initialize csr registers */ 762 fc->topology_map = (struct fw_topology_map *)malloc( 763 sizeof(struct fw_topology_map), 764 M_FW, M_NOWAIT | M_ZERO); 765 fc->speed_map = (struct fw_speed_map *)malloc( 766 sizeof(struct fw_speed_map), 767 M_FW, M_NOWAIT | M_ZERO); 768 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 769 CSRARC(fc, TOPO_MAP + 4) = 1; 770 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 771 CSRARC(fc, SPED_MAP + 4) = 1; 772 773 STAILQ_INIT(&fc->devices); 774 775 /* Initialize csr ROM work space */ 776 SLIST_INIT(&fc->ongocsr); 777 SLIST_INIT(&fc->csrfree); 778 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 779 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 780 if(csrd == NULL) break; 781 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 782 } 783 784 /* Initialize Async handlers */ 785 STAILQ_INIT(&fc->binds); 786 for( i = 0 ; i < 0x40 ; i++){ 787 STAILQ_INIT(&fc->tlabels[i]); 788 } 789 790 /* DV depend CSRs see blue book */ 791 #if 0 792 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 793 CSRARC(fc, oPCR) = 0x8000007a; 794 for(i = 4 ; i < 0x7c/4 ; i+=4){ 795 CSRARC(fc, i + oPCR) = 0x8000007a; 796 } 797 798 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 799 CSRARC(fc, iPCR) = 0x803f0000; 800 for(i = 4 ; i < 0x7c/4 ; i+=4){ 801 CSRARC(fc, i + iPCR) = 0x0; 802 } 803 #endif 804 805 fc->crom_src_buf = NULL; 806 807 #ifdef FW_VMACCESS 808 xfer = fw_xfer_alloc(); 809 if(xfer == NULL) return; 810 811 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 812 if(fwb == NULL){ 813 fw_xfer_free(xfer); 814 } 815 xfer->act.hand = fw_vmaccess; 816 xfer->fc = fc; 817 xfer->sc = NULL; 818 819 fwb->start_hi = 0x2; 820 fwb->start_lo = 0; 821 fwb->addrlen = 0xffffffff; 822 fwb->xfer = xfer; 823 fw_bindadd(fc, fwb); 824 #endif 825 } 826 827 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 828 ((fwb)->end < (addr))?1:0) 829 830 /* 831 * To lookup binded process from IEEE1394 address. 832 */ 833 struct fw_bind * 834 fw_bindlookup(struct firewire_comm *fc, u_int16_t dest_hi, u_int32_t dest_lo) 835 { 836 u_int64_t addr; 837 struct fw_bind *tfw; 838 839 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 840 STAILQ_FOREACH(tfw, &fc->binds, fclist) 841 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0) 842 return(tfw); 843 return(NULL); 844 } 845 846 /* 847 * To bind IEEE1394 address block to process. 848 */ 849 int 850 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 851 { 852 struct fw_bind *tfw, *prev = NULL; 853 854 if (fwb->start > fwb->end) { 855 printf("%s: invalid range\n", __func__); 856 return EINVAL; 857 } 858 859 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 860 if (fwb->end < tfw->start) 861 break; 862 prev = tfw; 863 } 864 if (prev == NULL) { 865 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 866 goto out; 867 } 868 if (prev->end < fwb->start) { 869 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 870 goto out; 871 } 872 873 printf("%s: bind failed\n", __func__); 874 return (EBUSY); 875 876 out: 877 if (fwb->act_type == FWACT_CH) 878 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 879 return (0); 880 } 881 882 /* 883 * To free IEEE1394 address block. 884 */ 885 int 886 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 887 { 888 #if 0 889 struct fw_xfer *xfer, *next; 890 #endif 891 struct fw_bind *tfw; 892 int s; 893 894 s = splfw(); 895 STAILQ_FOREACH(tfw, &fc->binds, fclist) 896 if (tfw == fwb) { 897 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 898 goto found; 899 } 900 901 printf("%s: no such bind\n", __func__); 902 splx(s); 903 return (1); 904 found: 905 #if 0 906 /* shall we do this? */ 907 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 908 next = STAILQ_NEXT(xfer, link); 909 fw_xfer_free(xfer); 910 } 911 STAILQ_INIT(&fwb->xferlist); 912 #endif 913 914 splx(s); 915 return 0; 916 } 917 918 /* 919 * To free transaction label. 920 */ 921 static void 922 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 923 { 924 struct tlabel *tl; 925 int s = splfw(); 926 927 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 928 tl = STAILQ_NEXT(tl, link)){ 929 if(tl->xfer == xfer){ 930 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 931 free(tl, M_FW); 932 splx(s); 933 return; 934 } 935 } 936 splx(s); 937 return; 938 } 939 940 /* 941 * To obtain XFER structure by transaction label. 942 */ 943 static struct fw_xfer * 944 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 945 { 946 struct fw_xfer *xfer; 947 struct tlabel *tl; 948 int s = splfw(); 949 950 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 951 tl = STAILQ_NEXT(tl, link)){ 952 if(tl->xfer->send.hdr.mode.hdr.dst == node){ 953 xfer = tl->xfer; 954 splx(s); 955 if (firewire_debug > 2) 956 printf("fw_tl2xfer: found tl=%d\n", tlabel); 957 return(xfer); 958 } 959 } 960 if (firewire_debug > 1) 961 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 962 splx(s); 963 return(NULL); 964 } 965 966 /* 967 * To allocate IEEE1394 XFER structure. 968 */ 969 struct fw_xfer * 970 fw_xfer_alloc(struct malloc_type *type) 971 { 972 struct fw_xfer *xfer; 973 974 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 975 if (xfer == NULL) 976 return xfer; 977 978 xfer->malloc = type; 979 980 return xfer; 981 } 982 983 struct fw_xfer * 984 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 985 { 986 struct fw_xfer *xfer; 987 988 xfer = fw_xfer_alloc(type); 989 if (xfer == NULL) 990 return(NULL); 991 xfer->send.pay_len = send_len; 992 xfer->recv.pay_len = recv_len; 993 if (send_len > 0) { 994 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 995 if (xfer->send.payload == NULL) { 996 fw_xfer_free(xfer); 997 return(NULL); 998 } 999 } 1000 if (recv_len > 0) { 1001 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 1002 if (xfer->recv.payload == NULL) { 1003 if (xfer->send.payload != NULL) 1004 free(xfer->send.payload, type); 1005 fw_xfer_free(xfer); 1006 return(NULL); 1007 } 1008 } 1009 return(xfer); 1010 } 1011 1012 /* 1013 * IEEE1394 XFER post process. 1014 */ 1015 void 1016 fw_xfer_done(struct fw_xfer *xfer) 1017 { 1018 if (xfer->act.hand == NULL) { 1019 printf("act.hand == NULL\n"); 1020 return; 1021 } 1022 1023 if (xfer->fc == NULL) 1024 panic("fw_xfer_done: why xfer->fc is NULL?"); 1025 1026 xfer->act.hand(xfer); 1027 } 1028 1029 void 1030 fw_xfer_unload(struct fw_xfer* xfer) 1031 { 1032 int s; 1033 1034 if(xfer == NULL ) return; 1035 if(xfer->state == FWXF_INQ){ 1036 printf("fw_xfer_free FWXF_INQ\n"); 1037 s = splfw(); 1038 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1039 xfer->q->queued --; 1040 splx(s); 1041 } 1042 if (xfer->fc != NULL) { 1043 #if 1 1044 if(xfer->state == FWXF_START) 1045 /* 1046 * This could happen if: 1047 * 1. We call fwohci_arcv() before fwohci_txd(). 1048 * 2. firewire_watch() is called. 1049 */ 1050 printf("fw_xfer_free FWXF_START\n"); 1051 #endif 1052 fw_tl_free(xfer->fc, xfer); 1053 } 1054 xfer->state = FWXF_INIT; 1055 xfer->resp = 0; 1056 xfer->retry = 0; 1057 } 1058 /* 1059 * To free IEEE1394 XFER structure. 1060 */ 1061 void 1062 fw_xfer_free_buf( struct fw_xfer* xfer) 1063 { 1064 if (xfer == NULL) { 1065 printf("%s: xfer == NULL\n", __func__); 1066 return; 1067 } 1068 fw_xfer_unload(xfer); 1069 if(xfer->send.payload != NULL){ 1070 free(xfer->send.payload, xfer->malloc); 1071 } 1072 if(xfer->recv.payload != NULL){ 1073 free(xfer->recv.payload, xfer->malloc); 1074 } 1075 free(xfer, xfer->malloc); 1076 } 1077 1078 void 1079 fw_xfer_free( struct fw_xfer* xfer) 1080 { 1081 if (xfer == NULL) { 1082 printf("%s: xfer == NULL\n", __func__); 1083 return; 1084 } 1085 fw_xfer_unload(xfer); 1086 free(xfer, xfer->malloc); 1087 } 1088 1089 void 1090 fw_asy_callback_free(struct fw_xfer *xfer) 1091 { 1092 #if 0 1093 printf("asyreq done state=%d resp=%d\n", 1094 xfer->state, xfer->resp); 1095 #endif 1096 fw_xfer_free(xfer); 1097 } 1098 1099 /* 1100 * To configure PHY. 1101 */ 1102 static void 1103 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1104 { 1105 struct fw_xfer *xfer; 1106 struct fw_pkt *fp; 1107 1108 fc->status = FWBUSPHYCONF; 1109 1110 xfer = fw_xfer_alloc(M_FWXFER); 1111 if (xfer == NULL) 1112 return; 1113 xfer->fc = fc; 1114 xfer->retry_req = fw_asybusy; 1115 xfer->act.hand = fw_asy_callback_free; 1116 1117 fp = &xfer->send.hdr; 1118 fp->mode.ld[1] = 0; 1119 if (root_node >= 0) 1120 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1121 if (gap_count >= 0) 1122 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1123 fp->mode.ld[2] = ~fp->mode.ld[1]; 1124 /* XXX Dangerous, how to pass PHY packet to device driver */ 1125 fp->mode.common.tcode |= FWTCODE_PHY; 1126 1127 if (firewire_debug) 1128 printf("send phy_config root_node=%d gap_count=%d\n", 1129 root_node, gap_count); 1130 fw_asyreq(fc, -1, xfer); 1131 } 1132 1133 #if 0 1134 /* 1135 * Dump self ID. 1136 */ 1137 static void 1138 fw_print_sid(u_int32_t sid) 1139 { 1140 union fw_self_id *s; 1141 s = (union fw_self_id *) &sid; 1142 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1143 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1144 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1145 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1146 s->p0.power_class, s->p0.port0, s->p0.port1, 1147 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1148 } 1149 #endif 1150 1151 /* 1152 * To receive self ID. 1153 */ 1154 void fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) 1155 { 1156 u_int32_t *p; 1157 union fw_self_id *self_id; 1158 u_int i, j, node, c_port = 0, i_branch = 0; 1159 1160 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1161 fc->status = FWBUSINIT; 1162 fc->max_node = fc->nodeid & 0x3f; 1163 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1164 fc->status = FWBUSCYMELECT; 1165 fc->topology_map->crc_len = 2; 1166 fc->topology_map->generation ++; 1167 fc->topology_map->self_id_count = 0; 1168 fc->topology_map->node_count = 0; 1169 fc->speed_map->generation ++; 1170 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1171 self_id = &fc->topology_map->self_id[0]; 1172 for(i = 0; i < fc->sid_cnt; i ++){ 1173 if (sid[1] != ~sid[0]) { 1174 printf("fw_sidrcv: invalid self-id packet\n"); 1175 sid += 2; 1176 continue; 1177 } 1178 *self_id = *((union fw_self_id *)sid); 1179 fc->topology_map->crc_len++; 1180 if(self_id->p0.sequel == 0){ 1181 fc->topology_map->node_count ++; 1182 c_port = 0; 1183 #if 0 1184 fw_print_sid(sid[0]); 1185 #endif 1186 node = self_id->p0.phy_id; 1187 if(fc->max_node < node){ 1188 fc->max_node = self_id->p0.phy_id; 1189 } 1190 /* XXX I'm not sure this is the right speed_map */ 1191 fc->speed_map->speed[node][node] 1192 = self_id->p0.phy_speed; 1193 for (j = 0; j < node; j ++) { 1194 fc->speed_map->speed[j][node] 1195 = fc->speed_map->speed[node][j] 1196 = min(fc->speed_map->speed[j][j], 1197 self_id->p0.phy_speed); 1198 } 1199 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1200 (self_id->p0.link_active && self_id->p0.contender)) { 1201 fc->irm = self_id->p0.phy_id; 1202 } 1203 if(self_id->p0.port0 >= 0x2){ 1204 c_port++; 1205 } 1206 if(self_id->p0.port1 >= 0x2){ 1207 c_port++; 1208 } 1209 if(self_id->p0.port2 >= 0x2){ 1210 c_port++; 1211 } 1212 } 1213 if(c_port > 2){ 1214 i_branch += (c_port - 2); 1215 } 1216 sid += 2; 1217 self_id++; 1218 fc->topology_map->self_id_count ++; 1219 } 1220 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1221 /* CRC */ 1222 fc->topology_map->crc = fw_crc16( 1223 (u_int32_t *)&fc->topology_map->generation, 1224 fc->topology_map->crc_len * 4); 1225 fc->speed_map->crc = fw_crc16( 1226 (u_int32_t *)&fc->speed_map->generation, 1227 fc->speed_map->crc_len * 4); 1228 /* byteswap and copy to CSR */ 1229 p = (u_int32_t *)fc->topology_map; 1230 for (i = 0; i <= fc->topology_map->crc_len; i++) 1231 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1232 p = (u_int32_t *)fc->speed_map; 1233 CSRARC(fc, SPED_MAP) = htonl(*p++); 1234 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1235 /* don't byte-swap u_int8_t array */ 1236 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1237 1238 fc->max_hop = fc->max_node - i_branch; 1239 printf(", maxhop <= %d", fc->max_hop); 1240 1241 if(fc->irm == -1 ){ 1242 printf(", Not found IRM capable node"); 1243 }else{ 1244 printf(", cable IRM = %d", fc->irm); 1245 if (fc->irm == fc->nodeid) 1246 printf(" (me)"); 1247 } 1248 printf("\n"); 1249 1250 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1251 if (fc->irm == fc->nodeid) { 1252 fc->status = FWBUSMGRDONE; 1253 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1254 fw_bmr(fc); 1255 } else { 1256 fc->status = FWBUSMGRELECT; 1257 callout_reset(&fc->bmr_callout, hz/8, 1258 (void *)fw_try_bmr, (void *)fc); 1259 } 1260 } else 1261 fc->status = FWBUSMGRDONE; 1262 1263 callout_reset(&fc->busprobe_callout, hz/4, 1264 (void *)fw_bus_probe, (void *)fc); 1265 } 1266 1267 /* 1268 * To probe devices on the IEEE1394 bus. 1269 */ 1270 static void 1271 fw_bus_probe(struct firewire_comm *fc) 1272 { 1273 int s; 1274 struct fw_device *fwdev; 1275 1276 s = splfw(); 1277 fc->status = FWBUSEXPLORE; 1278 fc->retry_count = 0; 1279 1280 /* Invalidate all devices, just after bus reset. */ 1281 STAILQ_FOREACH(fwdev, &fc->devices, link) 1282 if (fwdev->status != FWDEVINVAL) { 1283 fwdev->status = FWDEVINVAL; 1284 fwdev->rcnt = 0; 1285 } 1286 1287 fc->ongonode = 0; 1288 fc->ongoaddr = CSRROMOFF; 1289 fc->ongodev = NULL; 1290 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1291 fw_bus_explore(fc); 1292 splx(s); 1293 } 1294 1295 /* 1296 * To collect device informations on the IEEE1394 bus. 1297 */ 1298 static void 1299 fw_bus_explore(struct firewire_comm *fc ) 1300 { 1301 int err = 0; 1302 struct fw_device *fwdev, *pfwdev, *tfwdev; 1303 u_int32_t addr; 1304 struct fw_xfer *xfer; 1305 struct fw_pkt *fp; 1306 1307 if(fc->status != FWBUSEXPLORE) 1308 return; 1309 1310 loop: 1311 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1312 1313 if(fc->ongonode > fc->max_node) goto done; 1314 if(fc->ongonode >= 0x3f) goto done; 1315 1316 /* check link */ 1317 /* XXX we need to check phy_id first */ 1318 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1319 if (firewire_debug) 1320 printf("node%d: link down\n", fc->ongonode); 1321 fc->ongonode++; 1322 goto loop; 1323 } 1324 1325 if(fc->ongoaddr <= CSRROMOFF && 1326 fc->ongoeui.hi == 0xffffffff && 1327 fc->ongoeui.lo == 0xffffffff ){ 1328 fc->ongoaddr = CSRROMOFF; 1329 addr = 0xf0000000 | fc->ongoaddr; 1330 }else if(fc->ongoeui.hi == 0xffffffff ){ 1331 fc->ongoaddr = CSRROMOFF + 0xc; 1332 addr = 0xf0000000 | fc->ongoaddr; 1333 }else if(fc->ongoeui.lo == 0xffffffff ){ 1334 fc->ongoaddr = CSRROMOFF + 0x10; 1335 addr = 0xf0000000 | fc->ongoaddr; 1336 }else if(fc->ongodev == NULL){ 1337 STAILQ_FOREACH(fwdev, &fc->devices, link) 1338 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1339 break; 1340 if(fwdev != NULL){ 1341 fwdev->dst = fc->ongonode; 1342 fwdev->status = FWDEVINIT; 1343 fc->ongodev = fwdev; 1344 fc->ongoaddr = CSRROMOFF; 1345 addr = 0xf0000000 | fc->ongoaddr; 1346 goto dorequest; 1347 } 1348 fwdev = malloc(sizeof(struct fw_device), M_FW, 1349 M_NOWAIT | M_ZERO); 1350 if(fwdev == NULL) 1351 return; 1352 fwdev->fc = fc; 1353 fwdev->rommax = 0; 1354 fwdev->dst = fc->ongonode; 1355 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1356 fwdev->status = FWDEVINIT; 1357 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1358 1359 pfwdev = NULL; 1360 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1361 if (tfwdev->eui.hi > fwdev->eui.hi || 1362 (tfwdev->eui.hi == fwdev->eui.hi && 1363 tfwdev->eui.lo > fwdev->eui.lo)) 1364 break; 1365 pfwdev = tfwdev; 1366 } 1367 if (pfwdev == NULL) 1368 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1369 else 1370 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1371 1372 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1373 linkspeed[fwdev->speed], 1374 fc->ongoeui.hi, fc->ongoeui.lo); 1375 1376 fc->ongodev = fwdev; 1377 fc->ongoaddr = CSRROMOFF; 1378 addr = 0xf0000000 | fc->ongoaddr; 1379 }else{ 1380 addr = 0xf0000000 | fc->ongoaddr; 1381 } 1382 dorequest: 1383 #if 0 1384 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1385 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1386 fw_bus_explore_callback); 1387 if(xfer == NULL) goto done; 1388 #else 1389 xfer = fw_xfer_alloc(M_FWXFER); 1390 if(xfer == NULL){ 1391 goto done; 1392 } 1393 xfer->send.spd = 0; 1394 fp = &xfer->send.hdr; 1395 fp->mode.rreqq.dest_hi = 0xffff; 1396 fp->mode.rreqq.tlrt = 0; 1397 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1398 fp->mode.rreqq.pri = 0; 1399 fp->mode.rreqq.src = 0; 1400 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode; 1401 fp->mode.rreqq.dest_lo = addr; 1402 xfer->act.hand = fw_bus_explore_callback; 1403 1404 if (firewire_debug) 1405 printf("node%d: explore addr=0x%x\n", 1406 fc->ongonode, fc->ongoaddr); 1407 err = fw_asyreq(fc, -1, xfer); 1408 if(err){ 1409 fw_xfer_free( xfer); 1410 return; 1411 } 1412 #endif 1413 return; 1414 done: 1415 /* fw_attach_devs */ 1416 fc->status = FWBUSEXPDONE; 1417 if (firewire_debug) 1418 printf("bus_explore done\n"); 1419 fw_attach_dev(fc); 1420 return; 1421 1422 } 1423 1424 /* Portable Async. request read quad */ 1425 struct fw_xfer * 1426 asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1427 u_int32_t addr_hi, u_int32_t addr_lo, 1428 void (*hand) (struct fw_xfer*)) 1429 { 1430 struct fw_xfer *xfer; 1431 struct fw_pkt *fp; 1432 int err; 1433 1434 xfer = fw_xfer_alloc(M_FWXFER); 1435 if (xfer == NULL) 1436 return NULL; 1437 1438 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */ 1439 fp = &xfer->send.hdr; 1440 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1441 if(tl & FWP_TL_VALID){ 1442 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1443 }else{ 1444 fp->mode.rreqq.tlrt = 0; 1445 } 1446 fp->mode.rreqq.tlrt |= rt & 0x3; 1447 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1448 fp->mode.rreqq.pri = 0; 1449 fp->mode.rreqq.src = 0; 1450 fp->mode.rreqq.dst = addr_hi >> 16; 1451 fp->mode.rreqq.dest_lo = addr_lo; 1452 xfer->act.hand = hand; 1453 1454 err = fw_asyreq(fc, -1, xfer); 1455 if(err){ 1456 fw_xfer_free( xfer); 1457 return NULL; 1458 } 1459 return xfer; 1460 } 1461 1462 /* 1463 * Callback for the IEEE1394 bus information collection. 1464 */ 1465 static void 1466 fw_bus_explore_callback(struct fw_xfer *xfer) 1467 { 1468 struct firewire_comm *fc; 1469 struct fw_pkt *sfp,*rfp; 1470 struct csrhdr *chdr; 1471 struct csrdir *csrd; 1472 struct csrreg *csrreg; 1473 u_int32_t offset; 1474 1475 1476 if(xfer == NULL) { 1477 printf("xfer == NULL\n"); 1478 return; 1479 } 1480 fc = xfer->fc; 1481 1482 if (firewire_debug) 1483 printf("node%d: callback addr=0x%x\n", 1484 fc->ongonode, fc->ongoaddr); 1485 1486 if(xfer->resp != 0){ 1487 device_printf(fc->bdev, 1488 "bus_explore node=%d addr=0x%x resp=%d retry=%d\n", 1489 fc->ongonode, fc->ongoaddr, xfer->resp, xfer->retry); 1490 if (xfer->retry < fc->max_asyretry) { 1491 fw_asystart(xfer); 1492 return; 1493 } 1494 goto errnode; 1495 } 1496 1497 sfp = &xfer->send.hdr; 1498 rfp = &xfer->recv.hdr; 1499 #if 0 1500 { 1501 u_int32_t *qld; 1502 int i; 1503 qld = (u_int32_t *)xfer->recv.buf; 1504 printf("len:%d\n", xfer->recv.len); 1505 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1506 printf("0x%08x ", rfp->mode.ld[i/4]); 1507 if((i % 16) == 15) printf("\n"); 1508 } 1509 if((i % 16) != 15) printf("\n"); 1510 } 1511 #endif 1512 if(fc->ongodev == NULL){ 1513 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1514 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1515 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1516 /* If CSR is minimal confinguration, more investgation is not needed. */ 1517 if(chdr->info_len == 1){ 1518 if (firewire_debug) 1519 printf("node%d: minimal config\n", 1520 fc->ongonode); 1521 goto nextnode; 1522 }else{ 1523 fc->ongoaddr = CSRROMOFF + 0xc; 1524 } 1525 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1526 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1527 fc->ongoaddr = CSRROMOFF + 0x10; 1528 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1529 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1530 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1531 if (firewire_debug) 1532 printf("node%d: eui64 is zero.\n", 1533 fc->ongonode); 1534 goto nextnode; 1535 } 1536 fc->ongoaddr = CSRROMOFF; 1537 } 1538 }else{ 1539 if (fc->ongoaddr == CSRROMOFF && 1540 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1541 fc->ongodev->status = FWDEVATTACHED; 1542 goto nextnode; 1543 } 1544 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1545 if(fc->ongoaddr > fc->ongodev->rommax){ 1546 fc->ongodev->rommax = fc->ongoaddr; 1547 } 1548 csrd = SLIST_FIRST(&fc->ongocsr); 1549 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1550 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1551 offset = CSRROMOFF; 1552 }else{ 1553 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1554 offset = csrd->off; 1555 } 1556 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1557 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1558 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1559 csrd = SLIST_FIRST(&fc->csrfree); 1560 if(csrd == NULL){ 1561 goto nextnode; 1562 }else{ 1563 csrd->ongoaddr = fc->ongoaddr; 1564 fc->ongoaddr += csrreg->val * 4; 1565 csrd->off = fc->ongoaddr; 1566 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1567 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1568 goto nextaddr; 1569 } 1570 } 1571 } 1572 fc->ongoaddr += 4; 1573 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1574 (fc->ongodev->rommax < 0x414)){ 1575 if(fc->ongodev->rommax <= 0x414){ 1576 csrd = SLIST_FIRST(&fc->csrfree); 1577 if(csrd == NULL) goto nextnode; 1578 csrd->off = fc->ongoaddr; 1579 csrd->ongoaddr = fc->ongoaddr; 1580 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1581 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1582 } 1583 goto nextaddr; 1584 } 1585 1586 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1587 if(csrd == NULL){ 1588 goto nextnode; 1589 }; 1590 fc->ongoaddr = csrd->ongoaddr + 4; 1591 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1592 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1593 csrd = SLIST_FIRST(&fc->ongocsr); 1594 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1595 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1596 offset = CSRROMOFF; 1597 }else{ 1598 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1599 offset = csrd->off; 1600 } 1601 } 1602 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1603 goto nextnode; 1604 } 1605 } 1606 nextaddr: 1607 fw_xfer_free( xfer); 1608 fw_bus_explore(fc); 1609 return; 1610 errnode: 1611 fc->retry_count++; 1612 if (fc->ongodev != NULL) { 1613 fc->ongodev->status = FWDEVINVAL; 1614 /* Invalidate ROM */ 1615 fc->ongodev->csrrom[0] = 0; 1616 } 1617 nextnode: 1618 fw_xfer_free( xfer); 1619 fc->ongonode++; 1620 /* housekeeping work space */ 1621 fc->ongoaddr = CSRROMOFF; 1622 fc->ongodev = NULL; 1623 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1624 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1625 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1626 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1627 } 1628 fw_bus_explore(fc); 1629 return; 1630 } 1631 1632 /* 1633 * To attach sub-devices layer onto IEEE1394 bus. 1634 */ 1635 static void 1636 fw_attach_dev(struct firewire_comm *fc) 1637 { 1638 struct fw_device *fwdev, *next; 1639 int i, err; 1640 device_t *devlistp; 1641 int devcnt; 1642 struct firewire_dev_comm *fdc; 1643 1644 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1645 next = STAILQ_NEXT(fwdev, link); 1646 if (fwdev->status == FWDEVINIT) { 1647 fwdev->status = FWDEVATTACHED; 1648 } else if (fwdev->status == FWDEVINVAL) { 1649 fwdev->rcnt ++; 1650 if (fwdev->rcnt > hold_count) { 1651 /* 1652 * Remove devices which have not been seen 1653 * for a while. 1654 */ 1655 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1656 link); 1657 free(fwdev, M_FW); 1658 } 1659 } 1660 } 1661 1662 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1663 if( err != 0 ) 1664 return; 1665 for( i = 0 ; i < devcnt ; i++){ 1666 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1667 fdc = device_get_softc(devlistp[i]); 1668 if (fdc->post_explore != NULL) 1669 fdc->post_explore(fdc); 1670 } 1671 } 1672 free(devlistp, M_TEMP); 1673 1674 if (fc->retry_count > 0) { 1675 device_printf(fc->bdev, "bus_explore failed for %d nodes\n", 1676 fc->retry_count); 1677 #if 0 1678 callout_reset(&fc->retry_probe_callout, hz*2, 1679 (void *)fc->ibr, (void *)fc); 1680 #endif 1681 } 1682 return; 1683 } 1684 1685 /* 1686 * To allocate uniq transaction label. 1687 */ 1688 static int 1689 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1690 { 1691 u_int i; 1692 struct tlabel *tl, *tmptl; 1693 int s; 1694 static u_int32_t label = 0; 1695 1696 s = splfw(); 1697 for( i = 0 ; i < 0x40 ; i ++){ 1698 label = (label + 1) & 0x3f; 1699 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1700 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1701 if (tmptl->xfer->send.hdr.mode.hdr.dst == 1702 xfer->send.hdr.mode.hdr.dst) 1703 break; 1704 } 1705 if(tmptl == NULL) { 1706 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1707 if (tl == NULL) { 1708 splx(s); 1709 return (-1); 1710 } 1711 tl->xfer = xfer; 1712 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1713 splx(s); 1714 if (firewire_debug > 1) 1715 printf("fw_get_tlabel: dst=%d tl=%d\n", 1716 xfer->send.hdr.mode.hdr.dst, label); 1717 return(label); 1718 } 1719 } 1720 splx(s); 1721 1722 printf("fw_get_tlabel: no free tlabel\n"); 1723 return(-1); 1724 } 1725 1726 static void 1727 fw_rcv_copy(struct fw_rcv_buf *rb) 1728 { 1729 struct fw_pkt *pkt; 1730 u_char *p; 1731 struct tcode_info *tinfo; 1732 u_int res, i, len, plen; 1733 1734 rb->xfer->recv.spd -= rb->spd; 1735 1736 pkt = (struct fw_pkt *)rb->vec->iov_base; 1737 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1738 1739 /* Copy header */ 1740 p = (u_char *)&rb->xfer->recv.hdr; 1741 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1742 (u_char *)rb->vec->iov_base += tinfo->hdr_len; 1743 rb->vec->iov_len -= tinfo->hdr_len; 1744 1745 /* Copy payload */ 1746 p = (u_char *)rb->xfer->recv.payload; 1747 res = rb->xfer->recv.pay_len; 1748 1749 /* special handling for RRESQ */ 1750 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1751 p != NULL && res >= sizeof(u_int32_t)) { 1752 *(u_int32_t *)p = pkt->mode.rresq.data; 1753 rb->xfer->recv.pay_len = sizeof(u_int32_t); 1754 return; 1755 } 1756 1757 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1758 return; 1759 1760 plen = pkt->mode.rresb.len; 1761 1762 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1763 len = MIN(rb->vec->iov_len, plen); 1764 if (res < len) { 1765 printf("rcv buffer(%d) is %d bytes short.\n", 1766 rb->xfer->recv.pay_len, len - res); 1767 len = res; 1768 } 1769 bcopy(rb->vec->iov_base, p, len); 1770 p += len; 1771 res -= len; 1772 plen -= len; 1773 if (res == 0 || plen == 0) 1774 break; 1775 } 1776 rb->xfer->recv.pay_len -= res; 1777 1778 } 1779 1780 /* 1781 * Generic packet receving process. 1782 */ 1783 void 1784 fw_rcv(struct fw_rcv_buf *rb) 1785 { 1786 struct fw_pkt *fp, *resfp; 1787 struct fw_bind *bind; 1788 int tcode, s; 1789 int i, len, oldstate; 1790 #if 0 1791 { 1792 u_int32_t *qld; 1793 int i; 1794 qld = (u_int32_t *)buf; 1795 printf("spd %d len:%d\n", spd, len); 1796 for( i = 0 ; i <= len && i < 32; i+= 4){ 1797 printf("0x%08x ", ntohl(qld[i/4])); 1798 if((i % 16) == 15) printf("\n"); 1799 } 1800 if((i % 16) != 15) printf("\n"); 1801 } 1802 #endif 1803 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1804 tcode = fp->mode.common.tcode; 1805 switch (tcode) { 1806 case FWTCODE_WRES: 1807 case FWTCODE_RRESQ: 1808 case FWTCODE_RRESB: 1809 case FWTCODE_LRES: 1810 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1811 fp->mode.hdr.tlrt >> 2); 1812 if(rb->xfer == NULL) { 1813 printf("fw_rcv: unknown response " 1814 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1815 tcode_str[tcode], tcode, 1816 fp->mode.hdr.src, 1817 fp->mode.hdr.tlrt >> 2, 1818 fp->mode.hdr.tlrt & 3, 1819 fp->mode.rresq.data); 1820 #if 1 1821 printf("try ad-hoc work around!!\n"); 1822 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1823 (fp->mode.hdr.tlrt >> 2)^3); 1824 if (rb->xfer == NULL) { 1825 printf("no use...\n"); 1826 goto err; 1827 } 1828 #else 1829 goto err; 1830 #endif 1831 } 1832 fw_rcv_copy(rb); 1833 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1834 rb->xfer->resp = EIO; 1835 else 1836 rb->xfer->resp = 0; 1837 /* make sure the packet is drained in AT queue */ 1838 oldstate = rb->xfer->state; 1839 rb->xfer->state = FWXF_RCVD; 1840 switch (oldstate) { 1841 case FWXF_SENT: 1842 fw_xfer_done(rb->xfer); 1843 break; 1844 case FWXF_START: 1845 #if 0 1846 if (firewire_debug) 1847 printf("not sent yet tl=%x\n", rb->xfer->tl); 1848 #endif 1849 break; 1850 default: 1851 printf("unexpected state %d\n", rb->xfer->state); 1852 } 1853 return; 1854 case FWTCODE_WREQQ: 1855 case FWTCODE_WREQB: 1856 case FWTCODE_RREQQ: 1857 case FWTCODE_RREQB: 1858 case FWTCODE_LREQ: 1859 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1860 fp->mode.rreqq.dest_lo); 1861 if(bind == NULL){ 1862 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1863 #if defined(__DragonFly__) || __FreeBSD_version < 500000 1864 " src=0x%x data=%lx\n", 1865 #else 1866 " src=0x%x data=%x\n", 1867 #endif 1868 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1869 tcode_str[tcode], tcode, 1870 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1871 if (rb->fc->status == FWBUSRESET) { 1872 printf("fw_rcv: cannot respond(bus reset)!\n"); 1873 goto err; 1874 } 1875 rb->xfer = fw_xfer_alloc(M_FWXFER); 1876 if(rb->xfer == NULL){ 1877 return; 1878 } 1879 rb->xfer->send.spd = rb->spd; 1880 rb->xfer->send.pay_len = 0; 1881 resfp = &rb->xfer->send.hdr; 1882 switch (tcode) { 1883 case FWTCODE_WREQQ: 1884 case FWTCODE_WREQB: 1885 resfp->mode.hdr.tcode = FWTCODE_WRES; 1886 break; 1887 case FWTCODE_RREQQ: 1888 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1889 break; 1890 case FWTCODE_RREQB: 1891 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1892 break; 1893 case FWTCODE_LREQ: 1894 resfp->mode.hdr.tcode = FWTCODE_LRES; 1895 break; 1896 } 1897 resfp->mode.hdr.dst = fp->mode.hdr.src; 1898 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1899 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1900 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1901 resfp->mode.rresb.extcode = 0; 1902 resfp->mode.rresb.len = 0; 1903 /* 1904 rb->xfer->act.hand = fw_asy_callback; 1905 */ 1906 rb->xfer->act.hand = fw_xfer_free; 1907 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1908 fw_xfer_free(rb->xfer); 1909 return; 1910 } 1911 goto err; 1912 } 1913 len = 0; 1914 for (i = 0; i < rb->nvec; i ++) 1915 len += rb->vec[i].iov_len; 1916 switch(bind->act_type){ 1917 case FWACT_XFER: 1918 /* splfw()?? */ 1919 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1920 if (rb->xfer == NULL) { 1921 printf("Discard a packet for this bind.\n"); 1922 goto err; 1923 } 1924 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1925 fw_rcv_copy(rb); 1926 rb->xfer->act.hand(rb->xfer); 1927 return; 1928 break; 1929 case FWACT_CH: 1930 if(rb->fc->ir[bind->sub]->queued >= 1931 rb->fc->ir[bind->sub]->maxq){ 1932 device_printf(rb->fc->bdev, 1933 "Discard a packet %x %d\n", 1934 bind->sub, 1935 rb->fc->ir[bind->sub]->queued); 1936 goto err; 1937 } 1938 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1939 if (rb->xfer == NULL) { 1940 printf("Discard packet for this bind\n"); 1941 goto err; 1942 } 1943 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1944 fw_rcv_copy(rb); 1945 s = splfw(); 1946 rb->fc->ir[bind->sub]->queued++; 1947 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q, 1948 rb->xfer, link); 1949 splx(s); 1950 1951 wakeup((caddr_t)rb->fc->ir[bind->sub]); 1952 1953 return; 1954 break; 1955 default: 1956 goto err; 1957 break; 1958 } 1959 break; 1960 #if 0 /* shouldn't happen ?? or for GASP */ 1961 case FWTCODE_STREAM: 1962 { 1963 struct fw_xferq *xferq; 1964 1965 xferq = rb->fc->ir[sub]; 1966 #if 0 1967 printf("stream rcv dma %d len %d off %d spd %d\n", 1968 sub, len, off, spd); 1969 #endif 1970 if(xferq->queued >= xferq->maxq) { 1971 printf("receive queue is full\n"); 1972 goto err; 1973 } 1974 /* XXX get xfer from xfer queue, we don't need copy for 1975 per packet mode */ 1976 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1977 vec[0].iov_len); 1978 if (rb->xfer == NULL) goto err; 1979 fw_rcv_copy(rb) 1980 s = splfw(); 1981 xferq->queued++; 1982 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1983 splx(s); 1984 sc = device_get_softc(rb->fc->bdev); 1985 #if defined(__DragonFly__) || __FreeBSD_version < 500000 1986 if (&xferq->rsel.si_pid != 0) 1987 #else 1988 if (SEL_WAITING(&xferq->rsel)) 1989 #endif 1990 selwakeuppri(&xferq->rsel, FWPRI); 1991 if (xferq->flag & FWXFERQ_WAKEUP) { 1992 xferq->flag &= ~FWXFERQ_WAKEUP; 1993 wakeup((caddr_t)xferq); 1994 } 1995 if (xferq->flag & FWXFERQ_HANDLER) { 1996 xferq->hand(xferq); 1997 } 1998 return; 1999 break; 2000 } 2001 #endif 2002 default: 2003 printf("fw_rcv: unknow tcode %d\n", tcode); 2004 break; 2005 } 2006 err: 2007 return; 2008 } 2009 2010 /* 2011 * Post process for Bus Manager election process. 2012 */ 2013 static void 2014 fw_try_bmr_callback(struct fw_xfer *xfer) 2015 { 2016 struct firewire_comm *fc; 2017 int bmr; 2018 2019 if (xfer == NULL) 2020 return; 2021 fc = xfer->fc; 2022 if (xfer->resp != 0) 2023 goto error; 2024 if (xfer->recv.payload == NULL) 2025 goto error; 2026 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2027 goto error; 2028 2029 bmr = ntohl(xfer->recv.payload[0]); 2030 if (bmr == 0x3f) 2031 bmr = fc->nodeid; 2032 2033 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2034 fw_xfer_free_buf(xfer); 2035 fw_bmr(fc); 2036 return; 2037 2038 error: 2039 device_printf(fc->bdev, "bus manager election failed\n"); 2040 fw_xfer_free_buf(xfer); 2041 } 2042 2043 2044 /* 2045 * To candidate Bus Manager election process. 2046 */ 2047 static void 2048 fw_try_bmr(void *arg) 2049 { 2050 struct fw_xfer *xfer; 2051 struct firewire_comm *fc = (struct firewire_comm *)arg; 2052 struct fw_pkt *fp; 2053 int err = 0; 2054 2055 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2056 if(xfer == NULL){ 2057 return; 2058 } 2059 xfer->send.spd = 0; 2060 fc->status = FWBUSMGRELECT; 2061 2062 fp = &xfer->send.hdr; 2063 fp->mode.lreq.dest_hi = 0xffff; 2064 fp->mode.lreq.tlrt = 0; 2065 fp->mode.lreq.tcode = FWTCODE_LREQ; 2066 fp->mode.lreq.pri = 0; 2067 fp->mode.lreq.src = 0; 2068 fp->mode.lreq.len = 8; 2069 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2070 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2071 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2072 xfer->send.payload[0] = htonl(0x3f); 2073 xfer->send.payload[1] = htonl(fc->nodeid); 2074 xfer->act.hand = fw_try_bmr_callback; 2075 2076 err = fw_asyreq(fc, -1, xfer); 2077 if(err){ 2078 fw_xfer_free_buf(xfer); 2079 return; 2080 } 2081 return; 2082 } 2083 2084 #ifdef FW_VMACCESS 2085 /* 2086 * Software implementation for physical memory block access. 2087 * XXX:Too slow, usef for debug purpose only. 2088 */ 2089 static void 2090 fw_vmaccess(struct fw_xfer *xfer){ 2091 struct fw_pkt *rfp, *sfp = NULL; 2092 u_int32_t *ld = (u_int32_t *)xfer->recv.buf; 2093 2094 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2095 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2096 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2097 if(xfer->resp != 0){ 2098 fw_xfer_free( xfer); 2099 return; 2100 } 2101 if(xfer->recv.buf == NULL){ 2102 fw_xfer_free( xfer); 2103 return; 2104 } 2105 rfp = (struct fw_pkt *)xfer->recv.buf; 2106 switch(rfp->mode.hdr.tcode){ 2107 /* XXX need fix for 64bit arch */ 2108 case FWTCODE_WREQB: 2109 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2110 xfer->send.len = 12; 2111 sfp = (struct fw_pkt *)xfer->send.buf; 2112 bcopy(rfp->mode.wreqb.payload, 2113 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2114 sfp->mode.wres.tcode = FWTCODE_WRES; 2115 sfp->mode.wres.rtcode = 0; 2116 break; 2117 case FWTCODE_WREQQ: 2118 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2119 xfer->send.len = 12; 2120 sfp->mode.wres.tcode = FWTCODE_WRES; 2121 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2122 sfp->mode.wres.rtcode = 0; 2123 break; 2124 case FWTCODE_RREQB: 2125 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2126 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2127 sfp = (struct fw_pkt *)xfer->send.buf; 2128 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2129 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2130 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2131 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2132 sfp->mode.rresb.rtcode = 0; 2133 sfp->mode.rresb.extcode = 0; 2134 break; 2135 case FWTCODE_RREQQ: 2136 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2137 xfer->send.len = 16; 2138 sfp = (struct fw_pkt *)xfer->send.buf; 2139 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2140 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2141 sfp->mode.rresb.rtcode = 0; 2142 break; 2143 default: 2144 fw_xfer_free( xfer); 2145 return; 2146 } 2147 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2148 xfer->dst = ntohs(rfp->mode.hdr.src); 2149 xfer->act.hand = fw_xfer_free; 2150 xfer->retry_req = fw_asybusy; 2151 2152 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2153 sfp->mode.hdr.pri = 0; 2154 2155 fw_asyreq(xfer->fc, -1, xfer); 2156 /**/ 2157 return; 2158 } 2159 #endif 2160 2161 /* 2162 * CRC16 check-sum for IEEE1394 register blocks. 2163 */ 2164 u_int16_t 2165 fw_crc16(u_int32_t *ptr, u_int32_t len){ 2166 u_int32_t i, sum, crc = 0; 2167 int shift; 2168 len = (len + 3) & ~3; 2169 for(i = 0 ; i < len ; i+= 4){ 2170 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2171 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2172 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2173 } 2174 crc &= 0xffff; 2175 } 2176 return((u_int16_t) crc); 2177 } 2178 2179 static int 2180 fw_bmr(struct firewire_comm *fc) 2181 { 2182 struct fw_device fwdev; 2183 union fw_self_id *self_id; 2184 int cmstr; 2185 u_int32_t quad; 2186 2187 /* Check to see if the current root node is cycle master capable */ 2188 self_id = &fc->topology_map->self_id[fc->max_node]; 2189 if (fc->max_node > 0) { 2190 /* XXX check cmc bit of businfo block rather than contender */ 2191 if (self_id->p0.link_active && self_id->p0.contender) 2192 cmstr = fc->max_node; 2193 else { 2194 device_printf(fc->bdev, 2195 "root node is not cycle master capable\n"); 2196 /* XXX shall we be the cycle master? */ 2197 cmstr = fc->nodeid; 2198 /* XXX need bus reset */ 2199 } 2200 } else 2201 cmstr = -1; 2202 2203 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2204 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2205 /* We are not the bus manager */ 2206 printf("\n"); 2207 return(0); 2208 } 2209 printf("(me)\n"); 2210 2211 /* Optimize gapcount */ 2212 if(fc->max_hop <= MAX_GAPHOP ) 2213 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2214 /* If we are the cycle master, nothing to do */ 2215 if (cmstr == fc->nodeid || cmstr == -1) 2216 return 0; 2217 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2218 bzero(&fwdev, sizeof(fwdev)); 2219 fwdev.fc = fc; 2220 fwdev.dst = cmstr; 2221 fwdev.speed = 0; 2222 fwdev.maxrec = 8; /* 512 */ 2223 fwdev.status = FWDEVINIT; 2224 /* Set cmstr bit on the cycle master */ 2225 quad = htonl(1 << 8); 2226 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2227 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2228 2229 return 0; 2230 } 2231 2232 static int 2233 fw_modevent(module_t mode, int type, void *data) 2234 { 2235 int err = 0; 2236 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2237 static eventhandler_tag fwdev_ehtag = NULL; 2238 #endif 2239 2240 switch (type) { 2241 case MOD_LOAD: 2242 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2243 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2244 fwdev_clone, 0, 1000); 2245 #endif 2246 break; 2247 case MOD_UNLOAD: 2248 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2249 if (fwdev_ehtag != NULL) 2250 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2251 #endif 2252 break; 2253 case MOD_SHUTDOWN: 2254 break; 2255 } 2256 return (err); 2257 } 2258 2259 2260 #ifdef __DragonFly__ 2261 DECLARE_DUMMY_MODULE(firewire); 2262 #endif 2263 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2264 MODULE_VERSION(firewire, 1); 2265