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/module.h> 44 #include <sys/malloc.h> 45 #include <sys/conf.h> 46 #include <sys/sysctl.h> 47 48 #if defined(__DragonFly__) || __FreeBSD_version < 500000 49 #include <machine/clock.h> /* for DELAY() */ 50 #endif 51 52 #include <sys/bus.h> /* used by smbus and newbus */ 53 #include <machine/bus.h> 54 55 #ifdef __DragonFly__ 56 #include "firewire.h" 57 #include "firewirereg.h" 58 #include "fwmem.h" 59 #include "iec13213.h" 60 #include "iec68113.h" 61 #else 62 #include <dev/firewire/firewire.h> 63 #include <dev/firewire/firewirereg.h> 64 #include <dev/firewire/fwmem.h> 65 #include <dev/firewire/iec13213.h> 66 #include <dev/firewire/iec68113.h> 67 #endif 68 69 struct crom_src_buf { 70 struct crom_src src; 71 struct crom_chunk root; 72 struct crom_chunk vendor; 73 struct crom_chunk hw; 74 }; 75 76 int firewire_debug=0, try_bmr=1, hold_count=3; 77 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 78 "FireWire driver debug flag"); 79 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 80 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 81 "Try to be a bus manager"); 82 SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0, 83 "Number of count of bus resets for removing lost device information"); 84 85 MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 86 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 87 88 #define FW_MAXASYRTY 4 89 90 devclass_t firewire_devclass; 91 92 static void firewire_identify (driver_t *, device_t); 93 static int firewire_probe (device_t); 94 static int firewire_attach (device_t); 95 static int firewire_detach (device_t); 96 static int firewire_resume (device_t); 97 #if 0 98 static int firewire_shutdown (device_t); 99 #endif 100 static device_t firewire_add_child (device_t, int, const char *, int); 101 static void fw_try_bmr (void *); 102 static void fw_try_bmr_callback (struct fw_xfer *); 103 static void fw_asystart (struct fw_xfer *); 104 static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *); 105 static void fw_bus_probe (struct firewire_comm *); 106 static void fw_bus_explore (struct firewire_comm *); 107 static void fw_bus_explore_callback (struct fw_xfer *); 108 static void fw_attach_dev (struct firewire_comm *); 109 #ifdef FW_VMACCESS 110 static void fw_vmaccess (struct fw_xfer *); 111 #endif 112 struct fw_xfer *asyreqq (struct firewire_comm *, uint8_t, uint8_t, uint8_t, 113 uint32_t, uint32_t, void (*)(struct fw_xfer *)); 114 static int fw_bmr (struct firewire_comm *); 115 116 static device_method_t firewire_methods[] = { 117 /* Device interface */ 118 DEVMETHOD(device_identify, firewire_identify), 119 DEVMETHOD(device_probe, firewire_probe), 120 DEVMETHOD(device_attach, firewire_attach), 121 DEVMETHOD(device_detach, firewire_detach), 122 DEVMETHOD(device_suspend, bus_generic_suspend), 123 DEVMETHOD(device_resume, firewire_resume), 124 DEVMETHOD(device_shutdown, bus_generic_shutdown), 125 126 /* Bus interface */ 127 DEVMETHOD(bus_add_child, firewire_add_child), 128 DEVMETHOD(bus_print_child, bus_generic_print_child), 129 130 { 0, 0 } 131 }; 132 char *linkspeed[] = { 133 "S100", "S200", "S400", "S800", 134 "S1600", "S3200", "undef", "undef" 135 }; 136 137 static char *tcode_str[] = { 138 "WREQQ", "WREQB", "WRES", "undef", 139 "RREQQ", "RREQB", "RRESQ", "RRESB", 140 "CYCS", "LREQ", "STREAM", "LRES", 141 "undef", "undef", "PHY", "undef" 142 }; 143 144 /* IEEE-1394a Table C-2 Gap count as a function of hops*/ 145 #define MAX_GAPHOP 15 146 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 147 21, 24, 26, 29, 32, 35, 37, 40}; 148 149 static driver_t firewire_driver = { 150 "firewire", 151 firewire_methods, 152 sizeof(struct firewire_softc), 153 }; 154 155 /* 156 * Lookup fwdev by node id. 157 */ 158 struct fw_device * 159 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 160 { 161 struct fw_device *fwdev; 162 int s; 163 164 s = splfw(); 165 STAILQ_FOREACH(fwdev, &fc->devices, link) 166 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 167 break; 168 splx(s); 169 170 return fwdev; 171 } 172 173 /* 174 * Lookup fwdev by EUI64. 175 */ 176 struct fw_device * 177 fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 178 { 179 struct fw_device *fwdev; 180 int s; 181 182 s = splfw(); 183 STAILQ_FOREACH(fwdev, &fc->devices, link) 184 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 185 break; 186 splx(s); 187 188 if(fwdev == NULL) return NULL; 189 if(fwdev->status == FWDEVINVAL) return NULL; 190 return fwdev; 191 } 192 193 /* 194 * Async. request procedure for userland application. 195 */ 196 int 197 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 198 { 199 int err = 0; 200 struct fw_xferq *xferq; 201 int tl = 0, len; 202 struct fw_pkt *fp; 203 int tcode; 204 struct tcode_info *info; 205 206 if(xfer == NULL) return EINVAL; 207 if(xfer->act.hand == NULL){ 208 printf("act.hand == NULL\n"); 209 return EINVAL; 210 } 211 fp = &xfer->send.hdr; 212 213 tcode = fp->mode.common.tcode & 0xf; 214 info = &fc->tcode[tcode]; 215 if (info->flag == 0) { 216 printf("invalid tcode=%x\n", tcode); 217 return EINVAL; 218 } 219 if (info->flag & FWTI_REQ) 220 xferq = fc->atq; 221 else 222 xferq = fc->ats; 223 len = info->hdr_len; 224 if (xfer->send.pay_len > MAXREC(fc->maxrec)) { 225 printf("send.pay_len > maxrec\n"); 226 return EINVAL; 227 } 228 if (info->flag & FWTI_BLOCK_STR) 229 len = fp->mode.stream.len; 230 else if (info->flag & FWTI_BLOCK_ASY) 231 len = fp->mode.rresb.len; 232 else 233 len = 0; 234 if (len != xfer->send.pay_len){ 235 printf("len(%d) != send.pay_len(%d) %s(%x)\n", 236 len, xfer->send.pay_len, tcode_str[tcode], tcode); 237 return EINVAL; 238 } 239 240 if(xferq->start == NULL){ 241 printf("xferq->start == NULL\n"); 242 return EINVAL; 243 } 244 if(!(xferq->queued < xferq->maxq)){ 245 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 246 xferq->queued); 247 return EINVAL; 248 } 249 250 if (info->flag & FWTI_TLABEL) { 251 if ((tl = fw_get_tlabel(fc, xfer)) == -1) 252 return EAGAIN; 253 fp->mode.hdr.tlrt = tl << 2; 254 } 255 256 xfer->tl = tl; 257 xfer->resp = 0; 258 xfer->fc = fc; 259 xfer->q = xferq; 260 xfer->retry_req = fw_asybusy; 261 262 fw_asystart(xfer); 263 return err; 264 } 265 /* 266 * Wakeup blocked process. 267 */ 268 void 269 fw_asy_callback(struct fw_xfer *xfer){ 270 wakeup(xfer); 271 return; 272 } 273 /* 274 * Postpone to later retry. 275 */ 276 void fw_asybusy(struct fw_xfer *xfer){ 277 printf("fw_asybusy\n"); 278 /* 279 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 280 */ 281 #if 0 282 DELAY(20000); 283 #endif 284 fw_asystart(xfer); 285 return; 286 } 287 288 /* 289 * Async. request with given xfer structure. 290 */ 291 static void 292 fw_asystart(struct fw_xfer *xfer) 293 { 294 struct firewire_comm *fc = xfer->fc; 295 int s; 296 if(xfer->retry++ >= fc->max_asyretry){ 297 device_printf(fc->bdev, "max_asyretry exceeded\n"); 298 xfer->resp = EBUSY; 299 xfer->state = FWXF_BUSY; 300 xfer->act.hand(xfer); 301 return; 302 } 303 #if 0 /* XXX allow bus explore packets only after bus rest */ 304 if (fc->status < FWBUSEXPLORE) { 305 xfer->resp = EAGAIN; 306 xfer->state = FWXF_BUSY; 307 if (xfer->act.hand != NULL) 308 xfer->act.hand(xfer); 309 return; 310 } 311 #endif 312 microtime(&xfer->tv); 313 s = splfw(); 314 xfer->state = FWXF_INQ; 315 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 316 xfer->q->queued ++; 317 splx(s); 318 /* XXX just queue for mbuf */ 319 if (xfer->mbuf == NULL) 320 xfer->q->start(fc); 321 return; 322 } 323 324 static void 325 firewire_identify(driver_t *driver, device_t parent) 326 { 327 BUS_ADD_CHILD(parent, 0, "firewire", -1); 328 } 329 330 static int 331 firewire_probe(device_t dev) 332 { 333 device_set_desc(dev, "IEEE1394(FireWire) bus"); 334 return (0); 335 } 336 337 static void 338 firewire_xfer_timeout(struct firewire_comm *fc) 339 { 340 struct fw_xfer *xfer; 341 struct tlabel *tl; 342 struct timeval tv; 343 struct timeval split_timeout; 344 int i, s; 345 346 split_timeout.tv_sec = 0; 347 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 348 349 microtime(&tv); 350 timevalsub(&tv, &split_timeout); 351 352 s = splfw(); 353 for (i = 0; i < 0x40; i ++) { 354 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 355 xfer = tl->xfer; 356 if (timevalcmp(&xfer->tv, &tv, >)) 357 /* the rests are newer than this */ 358 break; 359 if (xfer->state == FWXF_START) 360 /* not sent yet */ 361 break; 362 device_printf(fc->bdev, 363 "split transaction timeout dst=0x%x tl=0x%x state=%d\n", 364 xfer->send.hdr.mode.hdr.dst, i, xfer->state); 365 xfer->resp = ETIMEDOUT; 366 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 367 fw_xfer_done(xfer); 368 } 369 } 370 splx(s); 371 } 372 373 #define WATCHDOC_HZ 10 374 static void 375 firewire_watchdog(void *arg) 376 { 377 struct firewire_comm *fc; 378 static int watchdoc_clock = 0; 379 380 fc = (struct firewire_comm *)arg; 381 382 /* 383 * At boot stage, the device interrupt is disabled and 384 * We encounter a timeout easily. To avoid this, 385 * ignore clock interrupt for a while. 386 */ 387 if (watchdoc_clock > WATCHDOC_HZ * 15) { 388 firewire_xfer_timeout(fc); 389 fc->timeout(fc); 390 } else 391 watchdoc_clock ++; 392 393 callout_reset(&fc->timeout_callout, hz / WATCHDOC_HZ, 394 (void *)firewire_watchdog, (void *)fc); 395 } 396 397 /* 398 * The attach routine. 399 */ 400 static int 401 firewire_attach(device_t dev) 402 { 403 int unit; 404 struct firewire_softc *sc = device_get_softc(dev); 405 device_t pa = device_get_parent(dev); 406 struct firewire_comm *fc; 407 408 fc = (struct firewire_comm *)device_get_softc(pa); 409 sc->fc = fc; 410 fc->status = FWBUSNOTREADY; 411 412 unit = device_get_unit(dev); 413 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 414 415 fwdev_makedev(sc); 416 417 CALLOUT_INIT(&sc->fc->timeout_callout); 418 CALLOUT_INIT(&sc->fc->bmr_callout); 419 CALLOUT_INIT(&sc->fc->retry_probe_callout); 420 CALLOUT_INIT(&sc->fc->busprobe_callout); 421 422 callout_reset(&sc->fc->timeout_callout, hz, 423 (void *)firewire_watchdog, (void *)sc->fc); 424 425 /* Locate our children */ 426 bus_generic_probe(dev); 427 428 /* launch attachement of the added children */ 429 bus_generic_attach(dev); 430 431 /* bus_reset */ 432 fw_busreset(fc); 433 fc->ibr(fc); 434 435 return 0; 436 } 437 438 /* 439 * Attach it as child. 440 */ 441 static device_t 442 firewire_add_child(device_t dev, int order, const char *name, int unit) 443 { 444 device_t child; 445 struct firewire_softc *sc; 446 447 sc = (struct firewire_softc *)device_get_softc(dev); 448 child = device_add_child(dev, name, unit); 449 if (child) { 450 device_set_ivars(child, sc->fc); 451 device_probe_and_attach(child); 452 } 453 454 return child; 455 } 456 457 static int 458 firewire_resume(device_t dev) 459 { 460 struct firewire_softc *sc; 461 462 sc = (struct firewire_softc *)device_get_softc(dev); 463 sc->fc->status = FWBUSNOTREADY; 464 465 bus_generic_resume(dev); 466 467 return(0); 468 } 469 470 /* 471 * Dettach it. 472 */ 473 static int 474 firewire_detach(device_t dev) 475 { 476 struct firewire_softc *sc; 477 struct csrdir *csrd, *next; 478 struct fw_device *fwdev, *fwdev_next; 479 int err; 480 481 sc = (struct firewire_softc *)device_get_softc(dev); 482 if ((err = fwdev_destroydev(sc)) != 0) 483 return err; 484 485 if ((err = bus_generic_detach(dev)) != 0) 486 return err; 487 488 callout_stop(&sc->fc->timeout_callout); 489 callout_stop(&sc->fc->bmr_callout); 490 callout_stop(&sc->fc->retry_probe_callout); 491 callout_stop(&sc->fc->busprobe_callout); 492 493 /* XXX xfree_free and untimeout on all xfers */ 494 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 495 fwdev = fwdev_next) { 496 fwdev_next = STAILQ_NEXT(fwdev, link); 497 free(fwdev, M_FW); 498 } 499 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 500 next = SLIST_NEXT(csrd, link); 501 free(csrd, M_FW); 502 } 503 free(sc->fc->topology_map, M_FW); 504 free(sc->fc->speed_map, M_FW); 505 free(sc->fc->crom_src_buf, M_FW); 506 return(0); 507 } 508 #if 0 509 static int 510 firewire_shutdown( device_t dev ) 511 { 512 return 0; 513 } 514 #endif 515 516 517 static void 518 fw_xferq_drain(struct fw_xferq *xferq) 519 { 520 struct fw_xfer *xfer; 521 522 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 523 STAILQ_REMOVE_HEAD(&xferq->q, link); 524 xferq->queued --; 525 xfer->resp = EAGAIN; 526 fw_xfer_done(xfer); 527 } 528 } 529 530 void 531 fw_drain_txq(struct firewire_comm *fc) 532 { 533 int i; 534 535 fw_xferq_drain(fc->atq); 536 fw_xferq_drain(fc->ats); 537 for(i = 0; i < fc->nisodma; i++) 538 fw_xferq_drain(fc->it[i]); 539 } 540 541 static void 542 fw_reset_csr(struct firewire_comm *fc) 543 { 544 int i; 545 546 CSRARC(fc, STATE_CLEAR) 547 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 548 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 549 CSRARC(fc, NODE_IDS) = 0x3f; 550 551 CSRARC(fc, TOPO_MAP + 8) = 0; 552 fc->irm = -1; 553 554 fc->max_node = -1; 555 556 for(i = 2; i < 0x100/4 - 2 ; i++){ 557 CSRARC(fc, SPED_MAP + i * 4) = 0; 558 } 559 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 560 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 561 CSRARC(fc, RESET_START) = 0; 562 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 563 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 564 CSRARC(fc, CYCLE_TIME) = 0x0; 565 CSRARC(fc, BUS_TIME) = 0x0; 566 CSRARC(fc, BUS_MGR_ID) = 0x3f; 567 CSRARC(fc, BANDWIDTH_AV) = 4915; 568 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 569 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 570 CSRARC(fc, IP_CHANNELS) = (1 << 31); 571 572 CSRARC(fc, CONF_ROM) = 0x04 << 24; 573 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 574 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 575 1 << 28 | 0xff << 16 | 0x09 << 8; 576 CSRARC(fc, CONF_ROM + 0xc) = 0; 577 578 /* DV depend CSRs see blue book */ 579 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 580 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 581 582 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 583 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 584 } 585 586 static void 587 fw_init_crom(struct firewire_comm *fc) 588 { 589 struct crom_src *src; 590 591 fc->crom_src_buf = (struct crom_src_buf *) 592 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 593 if (fc->crom_src_buf == NULL) 594 return; 595 596 src = &fc->crom_src_buf->src; 597 bzero(src, sizeof(struct crom_src)); 598 599 /* BUS info sample */ 600 src->hdr.info_len = 4; 601 602 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 603 604 src->businfo.irmc = 1; 605 src->businfo.cmc = 1; 606 src->businfo.isc = 1; 607 src->businfo.bmc = 1; 608 src->businfo.pmc = 0; 609 src->businfo.cyc_clk_acc = 100; 610 src->businfo.max_rec = fc->maxrec; 611 src->businfo.max_rom = MAXROM_4; 612 src->businfo.generation = 1; 613 src->businfo.link_spd = fc->speed; 614 615 src->businfo.eui64.hi = fc->eui.hi; 616 src->businfo.eui64.lo = fc->eui.lo; 617 618 STAILQ_INIT(&src->chunk_list); 619 620 fc->crom_src = src; 621 fc->crom_root = &fc->crom_src_buf->root; 622 } 623 624 static void 625 fw_reset_crom(struct firewire_comm *fc) 626 { 627 struct crom_src_buf *buf; 628 struct crom_src *src; 629 struct crom_chunk *root; 630 631 if (fc->crom_src_buf == NULL) 632 fw_init_crom(fc); 633 634 buf = fc->crom_src_buf; 635 src = fc->crom_src; 636 root = fc->crom_root; 637 638 STAILQ_INIT(&src->chunk_list); 639 640 bzero(root, sizeof(struct crom_chunk)); 641 crom_add_chunk(src, NULL, root, 0); 642 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 643 /* private company_id */ 644 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 645 #ifdef __DragonFly__ 646 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 647 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version); 648 #else 649 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 650 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 651 #endif 652 crom_add_simple_text(src, root, &buf->hw, hostname); 653 } 654 655 /* 656 * Called after bus reset. 657 */ 658 void 659 fw_busreset(struct firewire_comm *fc) 660 { 661 struct firewire_dev_comm *fdc; 662 struct crom_src *src; 663 device_t *devlistp; 664 void *newrom; 665 int i, devcnt; 666 667 switch(fc->status){ 668 case FWBUSMGRELECT: 669 callout_stop(&fc->bmr_callout); 670 break; 671 default: 672 break; 673 } 674 fc->status = FWBUSRESET; 675 fw_reset_csr(fc); 676 fw_reset_crom(fc); 677 678 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 679 for( i = 0 ; i < devcnt ; i++) 680 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 681 fdc = device_get_softc(devlistp[i]); 682 if (fdc->post_busreset != NULL) 683 fdc->post_busreset(fdc); 684 } 685 free(devlistp, M_TEMP); 686 } 687 688 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 689 src = &fc->crom_src_buf->src; 690 crom_load(src, (uint32_t *)newrom, CROMSIZE); 691 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 692 /* bump generation and reload */ 693 src->businfo.generation ++; 694 /* generation must be between 0x2 and 0xF */ 695 if (src->businfo.generation < 2) 696 src->businfo.generation ++; 697 crom_load(src, (uint32_t *)newrom, CROMSIZE); 698 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 699 } 700 free(newrom, M_FW); 701 } 702 703 /* Call once after reboot */ 704 void fw_init(struct firewire_comm *fc) 705 { 706 int i; 707 struct csrdir *csrd; 708 #ifdef FW_VMACCESS 709 struct fw_xfer *xfer; 710 struct fw_bind *fwb; 711 #endif 712 713 fc->max_asyretry = FW_MAXASYRTY; 714 715 fc->arq->queued = 0; 716 fc->ars->queued = 0; 717 fc->atq->queued = 0; 718 fc->ats->queued = 0; 719 720 fc->arq->buf = NULL; 721 fc->ars->buf = NULL; 722 fc->atq->buf = NULL; 723 fc->ats->buf = NULL; 724 725 fc->arq->flag = 0; 726 fc->ars->flag = 0; 727 fc->atq->flag = 0; 728 fc->ats->flag = 0; 729 730 STAILQ_INIT(&fc->atq->q); 731 STAILQ_INIT(&fc->ats->q); 732 733 for( i = 0 ; i < fc->nisodma ; i ++ ){ 734 fc->it[i]->queued = 0; 735 fc->ir[i]->queued = 0; 736 737 fc->it[i]->start = NULL; 738 fc->ir[i]->start = NULL; 739 740 fc->it[i]->buf = NULL; 741 fc->ir[i]->buf = NULL; 742 743 fc->it[i]->flag = FWXFERQ_STREAM; 744 fc->ir[i]->flag = FWXFERQ_STREAM; 745 746 STAILQ_INIT(&fc->it[i]->q); 747 STAILQ_INIT(&fc->ir[i]->q); 748 749 STAILQ_INIT(&fc->it[i]->binds); 750 STAILQ_INIT(&fc->ir[i]->binds); 751 } 752 753 fc->arq->maxq = FWMAXQUEUE; 754 fc->ars->maxq = FWMAXQUEUE; 755 fc->atq->maxq = FWMAXQUEUE; 756 fc->ats->maxq = FWMAXQUEUE; 757 758 for( i = 0 ; i < fc->nisodma ; i++){ 759 fc->ir[i]->maxq = FWMAXQUEUE; 760 fc->it[i]->maxq = FWMAXQUEUE; 761 } 762 /* Initialize csr registers */ 763 fc->topology_map = (struct fw_topology_map *)malloc( 764 sizeof(struct fw_topology_map), 765 M_FW, M_NOWAIT | M_ZERO); 766 fc->speed_map = (struct fw_speed_map *)malloc( 767 sizeof(struct fw_speed_map), 768 M_FW, M_NOWAIT | M_ZERO); 769 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 770 CSRARC(fc, TOPO_MAP + 4) = 1; 771 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 772 CSRARC(fc, SPED_MAP + 4) = 1; 773 774 STAILQ_INIT(&fc->devices); 775 776 /* Initialize csr ROM work space */ 777 SLIST_INIT(&fc->ongocsr); 778 SLIST_INIT(&fc->csrfree); 779 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 780 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 781 if(csrd == NULL) break; 782 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 783 } 784 785 /* Initialize Async handlers */ 786 STAILQ_INIT(&fc->binds); 787 for( i = 0 ; i < 0x40 ; i++){ 788 STAILQ_INIT(&fc->tlabels[i]); 789 } 790 791 /* DV depend CSRs see blue book */ 792 #if 0 793 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 794 CSRARC(fc, oPCR) = 0x8000007a; 795 for(i = 4 ; i < 0x7c/4 ; i+=4){ 796 CSRARC(fc, i + oPCR) = 0x8000007a; 797 } 798 799 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 800 CSRARC(fc, iPCR) = 0x803f0000; 801 for(i = 4 ; i < 0x7c/4 ; i+=4){ 802 CSRARC(fc, i + iPCR) = 0x0; 803 } 804 #endif 805 806 fc->crom_src_buf = NULL; 807 808 #ifdef FW_VMACCESS 809 xfer = fw_xfer_alloc(); 810 if(xfer == NULL) return; 811 812 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 813 if(fwb == NULL){ 814 fw_xfer_free(xfer); 815 return; 816 } 817 xfer->act.hand = fw_vmaccess; 818 xfer->fc = fc; 819 xfer->sc = NULL; 820 821 fwb->start_hi = 0x2; 822 fwb->start_lo = 0; 823 fwb->addrlen = 0xffffffff; 824 fwb->xfer = xfer; 825 fw_bindadd(fc, fwb); 826 #endif 827 } 828 829 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 830 ((fwb)->end < (addr))?1:0) 831 832 /* 833 * To lookup bound process from IEEE1394 address. 834 */ 835 struct fw_bind * 836 fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 837 { 838 u_int64_t addr; 839 struct fw_bind *tfw; 840 841 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 842 STAILQ_FOREACH(tfw, &fc->binds, fclist) 843 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0) 844 return(tfw); 845 return(NULL); 846 } 847 848 /* 849 * To bind IEEE1394 address block to process. 850 */ 851 int 852 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 853 { 854 struct fw_bind *tfw, *prev = NULL; 855 856 if (fwb->start > fwb->end) { 857 printf("%s: invalid range\n", __func__); 858 return EINVAL; 859 } 860 861 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 862 if (fwb->end < tfw->start) 863 break; 864 prev = tfw; 865 } 866 if (prev == NULL) { 867 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 868 goto out; 869 } 870 if (prev->end < fwb->start) { 871 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 872 goto out; 873 } 874 875 printf("%s: bind failed\n", __func__); 876 return (EBUSY); 877 878 out: 879 if (fwb->act_type == FWACT_CH) 880 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 881 return (0); 882 } 883 884 /* 885 * To free IEEE1394 address block. 886 */ 887 int 888 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 889 { 890 #if 0 891 struct fw_xfer *xfer, *next; 892 #endif 893 struct fw_bind *tfw; 894 int s; 895 896 s = splfw(); 897 STAILQ_FOREACH(tfw, &fc->binds, fclist) 898 if (tfw == fwb) { 899 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 900 goto found; 901 } 902 903 printf("%s: no such binding\n", __func__); 904 splx(s); 905 return (1); 906 found: 907 #if 0 908 /* shall we do this? */ 909 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 910 next = STAILQ_NEXT(xfer, link); 911 fw_xfer_free(xfer); 912 } 913 STAILQ_INIT(&fwb->xferlist); 914 #endif 915 916 splx(s); 917 return 0; 918 } 919 920 /* 921 * To free transaction label. 922 */ 923 static void 924 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 925 { 926 struct tlabel *tl; 927 int s = splfw(); 928 929 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 930 tl = STAILQ_NEXT(tl, link)){ 931 if(tl->xfer == xfer){ 932 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 933 free(tl, M_FW); 934 splx(s); 935 return; 936 } 937 } 938 splx(s); 939 return; 940 } 941 942 /* 943 * To obtain XFER structure by transaction label. 944 */ 945 static struct fw_xfer * 946 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 947 { 948 struct fw_xfer *xfer; 949 struct tlabel *tl; 950 int s = splfw(); 951 952 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 953 tl = STAILQ_NEXT(tl, link)){ 954 if(tl->xfer->send.hdr.mode.hdr.dst == node){ 955 xfer = tl->xfer; 956 splx(s); 957 if (firewire_debug > 2) 958 printf("fw_tl2xfer: found tl=%d\n", tlabel); 959 return(xfer); 960 } 961 } 962 if (firewire_debug > 1) 963 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 964 splx(s); 965 return(NULL); 966 } 967 968 /* 969 * To allocate IEEE1394 XFER structure. 970 */ 971 struct fw_xfer * 972 fw_xfer_alloc(struct malloc_type *type) 973 { 974 struct fw_xfer *xfer; 975 976 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 977 if (xfer == NULL) 978 return xfer; 979 980 xfer->malloc = type; 981 982 return xfer; 983 } 984 985 struct fw_xfer * 986 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 987 { 988 struct fw_xfer *xfer; 989 990 xfer = fw_xfer_alloc(type); 991 if (xfer == NULL) 992 return(NULL); 993 xfer->send.pay_len = send_len; 994 xfer->recv.pay_len = recv_len; 995 if (send_len > 0) { 996 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 997 if (xfer->send.payload == NULL) { 998 fw_xfer_free(xfer); 999 return(NULL); 1000 } 1001 } 1002 if (recv_len > 0) { 1003 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 1004 if (xfer->recv.payload == NULL) { 1005 if (xfer->send.payload != NULL) 1006 free(xfer->send.payload, type); 1007 fw_xfer_free(xfer); 1008 return(NULL); 1009 } 1010 } 1011 return(xfer); 1012 } 1013 1014 /* 1015 * IEEE1394 XFER post process. 1016 */ 1017 void 1018 fw_xfer_done(struct fw_xfer *xfer) 1019 { 1020 if (xfer->act.hand == NULL) { 1021 printf("act.hand == NULL\n"); 1022 return; 1023 } 1024 1025 if (xfer->fc == NULL) 1026 panic("fw_xfer_done: why xfer->fc is NULL?"); 1027 1028 xfer->act.hand(xfer); 1029 } 1030 1031 void 1032 fw_xfer_unload(struct fw_xfer* xfer) 1033 { 1034 int s; 1035 1036 if(xfer == NULL ) return; 1037 if(xfer->state == FWXF_INQ){ 1038 printf("fw_xfer_free FWXF_INQ\n"); 1039 s = splfw(); 1040 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1041 xfer->q->queued --; 1042 splx(s); 1043 } 1044 if (xfer->fc != NULL) { 1045 #if 1 1046 if(xfer->state == FWXF_START) 1047 /* 1048 * This could happen if: 1049 * 1. We call fwohci_arcv() before fwohci_txd(). 1050 * 2. firewire_watch() is called. 1051 */ 1052 printf("fw_xfer_free FWXF_START\n"); 1053 #endif 1054 fw_tl_free(xfer->fc, xfer); 1055 } 1056 xfer->state = FWXF_INIT; 1057 xfer->resp = 0; 1058 xfer->retry = 0; 1059 } 1060 /* 1061 * To free IEEE1394 XFER structure. 1062 */ 1063 void 1064 fw_xfer_free_buf( struct fw_xfer* xfer) 1065 { 1066 if (xfer == NULL) { 1067 printf("%s: xfer == NULL\n", __func__); 1068 return; 1069 } 1070 fw_xfer_unload(xfer); 1071 if(xfer->send.payload != NULL){ 1072 free(xfer->send.payload, xfer->malloc); 1073 } 1074 if(xfer->recv.payload != NULL){ 1075 free(xfer->recv.payload, xfer->malloc); 1076 } 1077 free(xfer, xfer->malloc); 1078 } 1079 1080 void 1081 fw_xfer_free( struct fw_xfer* xfer) 1082 { 1083 if (xfer == NULL) { 1084 printf("%s: xfer == NULL\n", __func__); 1085 return; 1086 } 1087 fw_xfer_unload(xfer); 1088 free(xfer, xfer->malloc); 1089 } 1090 1091 void 1092 fw_asy_callback_free(struct fw_xfer *xfer) 1093 { 1094 #if 0 1095 printf("asyreq done state=%d resp=%d\n", 1096 xfer->state, xfer->resp); 1097 #endif 1098 fw_xfer_free(xfer); 1099 } 1100 1101 /* 1102 * To configure PHY. 1103 */ 1104 static void 1105 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1106 { 1107 struct fw_xfer *xfer; 1108 struct fw_pkt *fp; 1109 1110 fc->status = FWBUSPHYCONF; 1111 1112 xfer = fw_xfer_alloc(M_FWXFER); 1113 if (xfer == NULL) 1114 return; 1115 xfer->fc = fc; 1116 xfer->retry_req = fw_asybusy; 1117 xfer->act.hand = fw_asy_callback_free; 1118 1119 fp = &xfer->send.hdr; 1120 fp->mode.ld[1] = 0; 1121 if (root_node >= 0) 1122 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1123 if (gap_count >= 0) 1124 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1125 fp->mode.ld[2] = ~fp->mode.ld[1]; 1126 /* XXX Dangerous, how to pass PHY packet to device driver */ 1127 fp->mode.common.tcode |= FWTCODE_PHY; 1128 1129 if (firewire_debug) 1130 printf("send phy_config root_node=%d gap_count=%d\n", 1131 root_node, gap_count); 1132 fw_asyreq(fc, -1, xfer); 1133 } 1134 1135 #if 0 1136 /* 1137 * Dump self ID. 1138 */ 1139 static void 1140 fw_print_sid(uint32_t sid) 1141 { 1142 union fw_self_id *s; 1143 s = (union fw_self_id *) &sid; 1144 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1145 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1146 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1147 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1148 s->p0.power_class, s->p0.port0, s->p0.port1, 1149 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1150 } 1151 #endif 1152 1153 /* 1154 * To receive self ID. 1155 */ 1156 void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1157 { 1158 uint32_t *p; 1159 union fw_self_id *self_id; 1160 u_int i, j, node, c_port = 0, i_branch = 0; 1161 1162 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1163 fc->status = FWBUSINIT; 1164 fc->max_node = fc->nodeid & 0x3f; 1165 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1166 fc->status = FWBUSCYMELECT; 1167 fc->topology_map->crc_len = 2; 1168 fc->topology_map->generation ++; 1169 fc->topology_map->self_id_count = 0; 1170 fc->topology_map->node_count = 0; 1171 fc->speed_map->generation ++; 1172 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1173 self_id = &fc->topology_map->self_id[0]; 1174 for(i = 0; i < fc->sid_cnt; i ++){ 1175 if (sid[1] != ~sid[0]) { 1176 printf("fw_sidrcv: invalid self-id packet\n"); 1177 sid += 2; 1178 continue; 1179 } 1180 *self_id = *((union fw_self_id *)sid); 1181 fc->topology_map->crc_len++; 1182 if(self_id->p0.sequel == 0){ 1183 fc->topology_map->node_count ++; 1184 c_port = 0; 1185 #if 0 1186 fw_print_sid(sid[0]); 1187 #endif 1188 node = self_id->p0.phy_id; 1189 if(fc->max_node < node){ 1190 fc->max_node = self_id->p0.phy_id; 1191 } 1192 /* XXX I'm not sure this is the right speed_map */ 1193 fc->speed_map->speed[node][node] 1194 = self_id->p0.phy_speed; 1195 for (j = 0; j < node; j ++) { 1196 fc->speed_map->speed[j][node] 1197 = fc->speed_map->speed[node][j] 1198 = min(fc->speed_map->speed[j][j], 1199 self_id->p0.phy_speed); 1200 } 1201 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1202 (self_id->p0.link_active && self_id->p0.contender)) { 1203 fc->irm = self_id->p0.phy_id; 1204 } 1205 if(self_id->p0.port0 >= 0x2){ 1206 c_port++; 1207 } 1208 if(self_id->p0.port1 >= 0x2){ 1209 c_port++; 1210 } 1211 if(self_id->p0.port2 >= 0x2){ 1212 c_port++; 1213 } 1214 } 1215 if(c_port > 2){ 1216 i_branch += (c_port - 2); 1217 } 1218 sid += 2; 1219 self_id++; 1220 fc->topology_map->self_id_count ++; 1221 } 1222 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1223 /* CRC */ 1224 fc->topology_map->crc = fw_crc16( 1225 (uint32_t *)&fc->topology_map->generation, 1226 fc->topology_map->crc_len * 4); 1227 fc->speed_map->crc = fw_crc16( 1228 (uint32_t *)&fc->speed_map->generation, 1229 fc->speed_map->crc_len * 4); 1230 /* byteswap and copy to CSR */ 1231 p = (uint32_t *)fc->topology_map; 1232 for (i = 0; i <= fc->topology_map->crc_len; i++) 1233 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1234 p = (uint32_t *)fc->speed_map; 1235 CSRARC(fc, SPED_MAP) = htonl(*p++); 1236 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1237 /* don't byte-swap uint8_t array */ 1238 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1239 1240 fc->max_hop = fc->max_node - i_branch; 1241 printf(", maxhop <= %d", fc->max_hop); 1242 1243 if(fc->irm == -1 ){ 1244 printf(", Not found IRM capable node"); 1245 }else{ 1246 printf(", cable IRM = %d", fc->irm); 1247 if (fc->irm == fc->nodeid) 1248 printf(" (me)"); 1249 } 1250 printf("\n"); 1251 1252 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1253 if (fc->irm == fc->nodeid) { 1254 fc->status = FWBUSMGRDONE; 1255 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1256 fw_bmr(fc); 1257 } else { 1258 fc->status = FWBUSMGRELECT; 1259 callout_reset(&fc->bmr_callout, hz/8, 1260 (void *)fw_try_bmr, (void *)fc); 1261 } 1262 } else 1263 fc->status = FWBUSMGRDONE; 1264 1265 callout_reset(&fc->busprobe_callout, hz/4, 1266 (void *)fw_bus_probe, (void *)fc); 1267 } 1268 1269 /* 1270 * To probe devices on the IEEE1394 bus. 1271 */ 1272 static void 1273 fw_bus_probe(struct firewire_comm *fc) 1274 { 1275 int s; 1276 struct fw_device *fwdev; 1277 1278 s = splfw(); 1279 fc->status = FWBUSEXPLORE; 1280 fc->retry_count = 0; 1281 1282 /* Invalidate all devices, just after bus reset. */ 1283 STAILQ_FOREACH(fwdev, &fc->devices, link) 1284 if (fwdev->status != FWDEVINVAL) { 1285 fwdev->status = FWDEVINVAL; 1286 fwdev->rcnt = 0; 1287 } 1288 1289 fc->ongonode = 0; 1290 fc->ongoaddr = CSRROMOFF; 1291 fc->ongodev = NULL; 1292 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1293 fw_bus_explore(fc); 1294 splx(s); 1295 } 1296 1297 /* 1298 * Find the self_id packet for a node, ignoring sequels. 1299 */ 1300 static union fw_self_id * 1301 fw_find_self_id(struct firewire_comm *fc, int node) 1302 { 1303 uint32_t i; 1304 union fw_self_id *s; 1305 1306 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1307 s = &fc->topology_map->self_id[i]; 1308 if (s->p0.sequel) 1309 continue; 1310 if (s->p0.phy_id == node) 1311 return s; 1312 } 1313 return 0; 1314 } 1315 1316 /* 1317 * To collect device informations on the IEEE1394 bus. 1318 */ 1319 static void 1320 fw_bus_explore(struct firewire_comm *fc ) 1321 { 1322 int err = 0; 1323 struct fw_device *fwdev, *pfwdev, *tfwdev; 1324 uint32_t addr; 1325 struct fw_xfer *xfer; 1326 struct fw_pkt *fp; 1327 1328 if(fc->status != FWBUSEXPLORE) 1329 return; 1330 1331 loop: 1332 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1333 1334 if(fc->ongonode > fc->max_node) goto done; 1335 if(fc->ongonode >= 0x3f) goto done; 1336 1337 /* check link */ 1338 /* XXX we need to check phy_id first */ 1339 if (!fw_find_self_id(fc, fc->ongonode)->p0.link_active) { 1340 if (firewire_debug) 1341 printf("node%d: link down\n", fc->ongonode); 1342 fc->ongonode++; 1343 goto loop; 1344 } 1345 1346 if(fc->ongoaddr <= CSRROMOFF && 1347 fc->ongoeui.hi == 0xffffffff && 1348 fc->ongoeui.lo == 0xffffffff ){ 1349 fc->ongoaddr = CSRROMOFF; 1350 addr = 0xf0000000 | fc->ongoaddr; 1351 }else if(fc->ongoeui.hi == 0xffffffff ){ 1352 fc->ongoaddr = CSRROMOFF + 0xc; 1353 addr = 0xf0000000 | fc->ongoaddr; 1354 }else if(fc->ongoeui.lo == 0xffffffff ){ 1355 fc->ongoaddr = CSRROMOFF + 0x10; 1356 addr = 0xf0000000 | fc->ongoaddr; 1357 }else if(fc->ongodev == NULL){ 1358 STAILQ_FOREACH(fwdev, &fc->devices, link) 1359 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1360 break; 1361 if(fwdev != NULL){ 1362 fwdev->dst = fc->ongonode; 1363 fwdev->status = FWDEVINIT; 1364 fc->ongodev = fwdev; 1365 fc->ongoaddr = CSRROMOFF; 1366 addr = 0xf0000000 | fc->ongoaddr; 1367 goto dorequest; 1368 } 1369 fwdev = malloc(sizeof(struct fw_device), M_FW, 1370 M_NOWAIT | M_ZERO); 1371 if(fwdev == NULL) 1372 return; 1373 fwdev->fc = fc; 1374 fwdev->rommax = 0; 1375 fwdev->dst = fc->ongonode; 1376 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1377 fwdev->status = FWDEVINIT; 1378 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1379 1380 pfwdev = NULL; 1381 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1382 if (tfwdev->eui.hi > fwdev->eui.hi || 1383 (tfwdev->eui.hi == fwdev->eui.hi && 1384 tfwdev->eui.lo > fwdev->eui.lo)) 1385 break; 1386 pfwdev = tfwdev; 1387 } 1388 if (pfwdev == NULL) 1389 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1390 else 1391 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1392 1393 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1394 linkspeed[fwdev->speed], 1395 fc->ongoeui.hi, fc->ongoeui.lo); 1396 1397 fc->ongodev = fwdev; 1398 fc->ongoaddr = CSRROMOFF; 1399 addr = 0xf0000000 | fc->ongoaddr; 1400 }else{ 1401 addr = 0xf0000000 | fc->ongoaddr; 1402 } 1403 dorequest: 1404 #if 0 1405 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1406 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1407 fw_bus_explore_callback); 1408 if(xfer == NULL) goto done; 1409 #else 1410 xfer = fw_xfer_alloc(M_FWXFER); 1411 if(xfer == NULL){ 1412 goto done; 1413 } 1414 xfer->send.spd = 0; 1415 fp = &xfer->send.hdr; 1416 fp->mode.rreqq.dest_hi = 0xffff; 1417 fp->mode.rreqq.tlrt = 0; 1418 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1419 fp->mode.rreqq.pri = 0; 1420 fp->mode.rreqq.src = 0; 1421 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode; 1422 fp->mode.rreqq.dest_lo = addr; 1423 xfer->act.hand = fw_bus_explore_callback; 1424 1425 if (firewire_debug) 1426 printf("node%d: explore addr=0x%x\n", 1427 fc->ongonode, fc->ongoaddr); 1428 err = fw_asyreq(fc, -1, xfer); 1429 if(err){ 1430 fw_xfer_free( xfer); 1431 return; 1432 } 1433 #endif 1434 return; 1435 done: 1436 /* fw_attach_devs */ 1437 fc->status = FWBUSEXPDONE; 1438 if (firewire_debug) 1439 printf("bus_explore done\n"); 1440 fw_attach_dev(fc); 1441 return; 1442 1443 } 1444 1445 /* Portable Async. request read quad */ 1446 struct fw_xfer * 1447 asyreqq(struct firewire_comm *fc, uint8_t spd, uint8_t tl, uint8_t rt, 1448 uint32_t addr_hi, uint32_t addr_lo, 1449 void (*hand) (struct fw_xfer*)) 1450 { 1451 struct fw_xfer *xfer; 1452 struct fw_pkt *fp; 1453 int err; 1454 1455 xfer = fw_xfer_alloc(M_FWXFER); 1456 if (xfer == NULL) 1457 return NULL; 1458 1459 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */ 1460 fp = &xfer->send.hdr; 1461 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1462 if(tl & FWP_TL_VALID){ 1463 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1464 }else{ 1465 fp->mode.rreqq.tlrt = 0; 1466 } 1467 fp->mode.rreqq.tlrt |= rt & 0x3; 1468 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1469 fp->mode.rreqq.pri = 0; 1470 fp->mode.rreqq.src = 0; 1471 fp->mode.rreqq.dst = addr_hi >> 16; 1472 fp->mode.rreqq.dest_lo = addr_lo; 1473 xfer->act.hand = hand; 1474 1475 err = fw_asyreq(fc, -1, xfer); 1476 if(err){ 1477 fw_xfer_free( xfer); 1478 return NULL; 1479 } 1480 return xfer; 1481 } 1482 1483 /* 1484 * Callback for the IEEE1394 bus information collection. 1485 */ 1486 static void 1487 fw_bus_explore_callback(struct fw_xfer *xfer) 1488 { 1489 struct firewire_comm *fc; 1490 struct fw_pkt *sfp,*rfp; 1491 struct csrhdr *chdr; 1492 struct csrdir *csrd; 1493 struct csrreg *csrreg; 1494 uint32_t offset; 1495 1496 1497 if(xfer == NULL) { 1498 printf("xfer == NULL\n"); 1499 return; 1500 } 1501 fc = xfer->fc; 1502 1503 if (firewire_debug) 1504 printf("node%d: callback addr=0x%x\n", 1505 fc->ongonode, fc->ongoaddr); 1506 1507 if(xfer->resp != 0){ 1508 device_printf(fc->bdev, 1509 "bus_explore node=%d addr=0x%x resp=%d retry=%d\n", 1510 fc->ongonode, fc->ongoaddr, xfer->resp, xfer->retry); 1511 if (xfer->retry < fc->max_asyretry) { 1512 fw_asystart(xfer); 1513 return; 1514 } 1515 goto errnode; 1516 } 1517 1518 sfp = &xfer->send.hdr; 1519 rfp = &xfer->recv.hdr; 1520 #if 0 1521 { 1522 uint32_t *qld; 1523 int i; 1524 qld = (uint32_t *)xfer->recv.buf; 1525 printf("len:%d\n", xfer->recv.len); 1526 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1527 printf("0x%08x ", rfp->mode.ld[i/4]); 1528 if((i % 16) == 15) printf("\n"); 1529 } 1530 if((i % 16) != 15) printf("\n"); 1531 } 1532 #endif 1533 if(fc->ongodev == NULL){ 1534 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1535 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1536 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1537 /* If CSR is minimal confinguration, more investigation is not needed. */ 1538 if(chdr->info_len == 1){ 1539 if (firewire_debug) 1540 printf("node%d: minimal config\n", 1541 fc->ongonode); 1542 goto nextnode; 1543 }else{ 1544 fc->ongoaddr = CSRROMOFF + 0xc; 1545 } 1546 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1547 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1548 fc->ongoaddr = CSRROMOFF + 0x10; 1549 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1550 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1551 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1552 if (firewire_debug) 1553 printf("node%d: eui64 is zero.\n", 1554 fc->ongonode); 1555 goto nextnode; 1556 } 1557 fc->ongoaddr = CSRROMOFF; 1558 } 1559 }else{ 1560 if (fc->ongoaddr == CSRROMOFF && 1561 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1562 fc->ongodev->status = FWDEVATTACHED; 1563 goto nextnode; 1564 } 1565 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1566 if(fc->ongoaddr > fc->ongodev->rommax){ 1567 fc->ongodev->rommax = fc->ongoaddr; 1568 } 1569 csrd = SLIST_FIRST(&fc->ongocsr); 1570 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1571 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1572 offset = CSRROMOFF; 1573 }else{ 1574 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1575 offset = csrd->off; 1576 } 1577 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1578 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1579 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1580 csrd = SLIST_FIRST(&fc->csrfree); 1581 if(csrd == NULL){ 1582 goto nextnode; 1583 }else{ 1584 csrd->ongoaddr = fc->ongoaddr; 1585 fc->ongoaddr += csrreg->val * 4; 1586 csrd->off = fc->ongoaddr; 1587 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1588 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1589 goto nextaddr; 1590 } 1591 } 1592 } 1593 fc->ongoaddr += 4; 1594 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1595 (fc->ongodev->rommax < 0x414)){ 1596 if(fc->ongodev->rommax <= 0x414){ 1597 csrd = SLIST_FIRST(&fc->csrfree); 1598 if(csrd == NULL) goto nextnode; 1599 csrd->off = fc->ongoaddr; 1600 csrd->ongoaddr = fc->ongoaddr; 1601 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1602 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1603 } 1604 goto nextaddr; 1605 } 1606 1607 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1608 if(csrd == NULL){ 1609 goto nextnode; 1610 }; 1611 fc->ongoaddr = csrd->ongoaddr + 4; 1612 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1613 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1614 csrd = SLIST_FIRST(&fc->ongocsr); 1615 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1616 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1617 offset = CSRROMOFF; 1618 }else{ 1619 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1620 offset = csrd->off; 1621 } 1622 } 1623 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1624 goto nextnode; 1625 } 1626 } 1627 nextaddr: 1628 fw_xfer_free( xfer); 1629 fw_bus_explore(fc); 1630 return; 1631 errnode: 1632 fc->retry_count++; 1633 if (fc->ongodev != NULL) { 1634 fc->ongodev->status = FWDEVINVAL; 1635 /* Invalidate ROM */ 1636 fc->ongodev->csrrom[0] = 0; 1637 } 1638 nextnode: 1639 fw_xfer_free( xfer); 1640 fc->ongonode++; 1641 /* housekeeping work space */ 1642 fc->ongoaddr = CSRROMOFF; 1643 fc->ongodev = NULL; 1644 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1645 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1646 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1647 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1648 } 1649 fw_bus_explore(fc); 1650 return; 1651 } 1652 1653 /* 1654 * To attach sub-devices layer onto IEEE1394 bus. 1655 */ 1656 static void 1657 fw_attach_dev(struct firewire_comm *fc) 1658 { 1659 struct fw_device *fwdev, *next; 1660 int i, err; 1661 device_t *devlistp; 1662 int devcnt; 1663 struct firewire_dev_comm *fdc; 1664 1665 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1666 next = STAILQ_NEXT(fwdev, link); 1667 if (fwdev->status == FWDEVINIT) { 1668 fwdev->status = FWDEVATTACHED; 1669 } else if (fwdev->status == FWDEVINVAL) { 1670 fwdev->rcnt ++; 1671 if (fwdev->rcnt > hold_count) { 1672 /* 1673 * Remove devices which have not been seen 1674 * for a while. 1675 */ 1676 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1677 link); 1678 free(fwdev, M_FW); 1679 } 1680 } 1681 } 1682 1683 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1684 if( err != 0 ) 1685 return; 1686 for( i = 0 ; i < devcnt ; i++){ 1687 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1688 fdc = device_get_softc(devlistp[i]); 1689 if (fdc->post_explore != NULL) 1690 fdc->post_explore(fdc); 1691 } 1692 } 1693 free(devlistp, M_TEMP); 1694 1695 if (fc->retry_count > 0) { 1696 device_printf(fc->bdev, "bus_explore failed for %d nodes\n", 1697 fc->retry_count); 1698 #if 0 1699 callout_reset(&fc->retry_probe_callout, hz*2, 1700 (void *)fc->ibr, (void *)fc); 1701 #endif 1702 } 1703 return; 1704 } 1705 1706 /* 1707 * To allocate unique transaction label. 1708 */ 1709 static int 1710 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1711 { 1712 u_int i; 1713 struct tlabel *tl, *tmptl; 1714 int s; 1715 static uint32_t label = 0; 1716 1717 s = splfw(); 1718 for( i = 0 ; i < 0x40 ; i ++){ 1719 label = (label + 1) & 0x3f; 1720 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1721 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1722 if (tmptl->xfer->send.hdr.mode.hdr.dst == 1723 xfer->send.hdr.mode.hdr.dst) 1724 break; 1725 } 1726 if(tmptl == NULL) { 1727 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1728 if (tl == NULL) { 1729 splx(s); 1730 return (-1); 1731 } 1732 tl->xfer = xfer; 1733 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1734 splx(s); 1735 if (firewire_debug > 1) 1736 printf("fw_get_tlabel: dst=%d tl=%d\n", 1737 xfer->send.hdr.mode.hdr.dst, label); 1738 return(label); 1739 } 1740 } 1741 splx(s); 1742 1743 if (firewire_debug > 1) 1744 printf("fw_get_tlabel: no free tlabel\n"); 1745 return(-1); 1746 } 1747 1748 static void 1749 fw_rcv_copy(struct fw_rcv_buf *rb) 1750 { 1751 struct fw_pkt *pkt; 1752 u_char *p; 1753 struct tcode_info *tinfo; 1754 u_int res, i, len, plen; 1755 1756 rb->xfer->recv.spd -= rb->spd; 1757 1758 pkt = (struct fw_pkt *)rb->vec->iov_base; 1759 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1760 1761 /* Copy header */ 1762 p = (u_char *)&rb->xfer->recv.hdr; 1763 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1764 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1765 rb->vec->iov_len -= tinfo->hdr_len; 1766 1767 /* Copy payload */ 1768 p = (u_char *)rb->xfer->recv.payload; 1769 res = rb->xfer->recv.pay_len; 1770 1771 /* special handling for RRESQ */ 1772 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1773 p != NULL && res >= sizeof(uint32_t)) { 1774 *(uint32_t *)p = pkt->mode.rresq.data; 1775 rb->xfer->recv.pay_len = sizeof(uint32_t); 1776 return; 1777 } 1778 1779 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1780 return; 1781 1782 plen = pkt->mode.rresb.len; 1783 1784 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1785 len = MIN(rb->vec->iov_len, plen); 1786 if (res < len) { 1787 printf("rcv buffer(%d) is %d bytes short.\n", 1788 rb->xfer->recv.pay_len, len - res); 1789 len = res; 1790 } 1791 bcopy(rb->vec->iov_base, p, len); 1792 p += len; 1793 res -= len; 1794 plen -= len; 1795 if (res == 0 || plen == 0) 1796 break; 1797 } 1798 rb->xfer->recv.pay_len -= res; 1799 1800 } 1801 1802 /* 1803 * Generic packet receiving process. 1804 */ 1805 void 1806 fw_rcv(struct fw_rcv_buf *rb) 1807 { 1808 struct fw_pkt *fp, *resfp; 1809 struct fw_bind *bind; 1810 int tcode, s; 1811 int i, len, oldstate; 1812 #if 0 1813 { 1814 uint32_t *qld; 1815 int i; 1816 qld = (uint32_t *)buf; 1817 printf("spd %d len:%d\n", spd, len); 1818 for( i = 0 ; i <= len && i < 32; i+= 4){ 1819 printf("0x%08x ", ntohl(qld[i/4])); 1820 if((i % 16) == 15) printf("\n"); 1821 } 1822 if((i % 16) != 15) printf("\n"); 1823 } 1824 #endif 1825 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1826 tcode = fp->mode.common.tcode; 1827 switch (tcode) { 1828 case FWTCODE_WRES: 1829 case FWTCODE_RRESQ: 1830 case FWTCODE_RRESB: 1831 case FWTCODE_LRES: 1832 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1833 fp->mode.hdr.tlrt >> 2); 1834 if(rb->xfer == NULL) { 1835 printf("fw_rcv: unknown response " 1836 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1837 tcode_str[tcode], tcode, 1838 fp->mode.hdr.src, 1839 fp->mode.hdr.tlrt >> 2, 1840 fp->mode.hdr.tlrt & 3, 1841 fp->mode.rresq.data); 1842 #if 1 1843 printf("try ad-hoc work around!!\n"); 1844 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1845 (fp->mode.hdr.tlrt >> 2)^3); 1846 if (rb->xfer == NULL) { 1847 printf("no use...\n"); 1848 goto err; 1849 } 1850 #else 1851 goto err; 1852 #endif 1853 } 1854 fw_rcv_copy(rb); 1855 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1856 rb->xfer->resp = EIO; 1857 else 1858 rb->xfer->resp = 0; 1859 /* make sure the packet is drained in AT queue */ 1860 oldstate = rb->xfer->state; 1861 rb->xfer->state = FWXF_RCVD; 1862 switch (oldstate) { 1863 case FWXF_SENT: 1864 fw_xfer_done(rb->xfer); 1865 break; 1866 case FWXF_START: 1867 #if 0 1868 if (firewire_debug) 1869 printf("not sent yet tl=%x\n", rb->xfer->tl); 1870 #endif 1871 break; 1872 default: 1873 printf("unexpected state %d\n", rb->xfer->state); 1874 } 1875 return; 1876 case FWTCODE_WREQQ: 1877 case FWTCODE_WREQB: 1878 case FWTCODE_RREQQ: 1879 case FWTCODE_RREQB: 1880 case FWTCODE_LREQ: 1881 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1882 fp->mode.rreqq.dest_lo); 1883 if(bind == NULL){ 1884 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1885 #if defined(__DragonFly__) || __FreeBSD_version < 500000 1886 " src=0x%x data=%lx\n", 1887 #else 1888 " src=0x%x data=%x\n", 1889 #endif 1890 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1891 tcode_str[tcode], tcode, 1892 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1893 if (rb->fc->status == FWBUSRESET) { 1894 printf("fw_rcv: cannot respond(bus reset)!\n"); 1895 goto err; 1896 } 1897 rb->xfer = fw_xfer_alloc(M_FWXFER); 1898 if(rb->xfer == NULL){ 1899 return; 1900 } 1901 rb->xfer->send.spd = rb->spd; 1902 rb->xfer->send.pay_len = 0; 1903 resfp = &rb->xfer->send.hdr; 1904 switch (tcode) { 1905 case FWTCODE_WREQQ: 1906 case FWTCODE_WREQB: 1907 resfp->mode.hdr.tcode = FWTCODE_WRES; 1908 break; 1909 case FWTCODE_RREQQ: 1910 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1911 break; 1912 case FWTCODE_RREQB: 1913 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1914 break; 1915 case FWTCODE_LREQ: 1916 resfp->mode.hdr.tcode = FWTCODE_LRES; 1917 break; 1918 } 1919 resfp->mode.hdr.dst = fp->mode.hdr.src; 1920 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1921 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1922 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1923 resfp->mode.rresb.extcode = 0; 1924 resfp->mode.rresb.len = 0; 1925 /* 1926 rb->xfer->act.hand = fw_asy_callback; 1927 */ 1928 rb->xfer->act.hand = fw_xfer_free; 1929 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1930 fw_xfer_free(rb->xfer); 1931 return; 1932 } 1933 goto err; 1934 } 1935 len = 0; 1936 for (i = 0; i < rb->nvec; i ++) 1937 len += rb->vec[i].iov_len; 1938 switch(bind->act_type){ 1939 case FWACT_XFER: 1940 /* splfw()?? */ 1941 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1942 if (rb->xfer == NULL) { 1943 printf("Discard a packet for this bind.\n"); 1944 goto err; 1945 } 1946 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1947 fw_rcv_copy(rb); 1948 rb->xfer->act.hand(rb->xfer); 1949 return; 1950 break; 1951 case FWACT_CH: 1952 if(rb->fc->ir[bind->sub]->queued >= 1953 rb->fc->ir[bind->sub]->maxq){ 1954 device_printf(rb->fc->bdev, 1955 "Discard a packet %x %d\n", 1956 bind->sub, 1957 rb->fc->ir[bind->sub]->queued); 1958 goto err; 1959 } 1960 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1961 if (rb->xfer == NULL) { 1962 printf("Discard packet for this bind\n"); 1963 goto err; 1964 } 1965 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1966 fw_rcv_copy(rb); 1967 s = splfw(); 1968 rb->fc->ir[bind->sub]->queued++; 1969 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q, 1970 rb->xfer, link); 1971 splx(s); 1972 1973 wakeup((caddr_t)rb->fc->ir[bind->sub]); 1974 1975 return; 1976 break; 1977 default: 1978 goto err; 1979 break; 1980 } 1981 break; 1982 #if 0 /* shouldn't happen ?? or for GASP */ 1983 case FWTCODE_STREAM: 1984 { 1985 struct fw_xferq *xferq; 1986 1987 xferq = rb->fc->ir[sub]; 1988 #if 0 1989 printf("stream rcv dma %d len %d off %d spd %d\n", 1990 sub, len, off, spd); 1991 #endif 1992 if(xferq->queued >= xferq->maxq) { 1993 printf("receive queue is full\n"); 1994 goto err; 1995 } 1996 /* XXX get xfer from xfer queue, we don't need copy for 1997 per packet mode */ 1998 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1999 vec[0].iov_len); 2000 if (rb->xfer == NULL) goto err; 2001 fw_rcv_copy(rb) 2002 s = splfw(); 2003 xferq->queued++; 2004 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 2005 splx(s); 2006 sc = device_get_softc(rb->fc->bdev); 2007 #if defined(__DragonFly__) || __FreeBSD_version < 500000 2008 if (&xferq->rsel.si_pid != 0) 2009 #else 2010 if (SEL_WAITING(&xferq->rsel)) 2011 #endif 2012 selwakeuppri(&xferq->rsel, FWPRI); 2013 if (xferq->flag & FWXFERQ_WAKEUP) { 2014 xferq->flag &= ~FWXFERQ_WAKEUP; 2015 wakeup((caddr_t)xferq); 2016 } 2017 if (xferq->flag & FWXFERQ_HANDLER) { 2018 xferq->hand(xferq); 2019 } 2020 return; 2021 break; 2022 } 2023 #endif 2024 default: 2025 printf("fw_rcv: unknow tcode %d\n", tcode); 2026 break; 2027 } 2028 err: 2029 return; 2030 } 2031 2032 /* 2033 * Post process for Bus Manager election process. 2034 */ 2035 static void 2036 fw_try_bmr_callback(struct fw_xfer *xfer) 2037 { 2038 struct firewire_comm *fc; 2039 int bmr; 2040 2041 if (xfer == NULL) 2042 return; 2043 fc = xfer->fc; 2044 if (xfer->resp != 0) 2045 goto error; 2046 if (xfer->recv.payload == NULL) 2047 goto error; 2048 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2049 goto error; 2050 2051 bmr = ntohl(xfer->recv.payload[0]); 2052 if (bmr == 0x3f) 2053 bmr = fc->nodeid; 2054 2055 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2056 fw_xfer_free_buf(xfer); 2057 fw_bmr(fc); 2058 return; 2059 2060 error: 2061 device_printf(fc->bdev, "bus manager election failed\n"); 2062 fw_xfer_free_buf(xfer); 2063 } 2064 2065 2066 /* 2067 * To candidate Bus Manager election process. 2068 */ 2069 static void 2070 fw_try_bmr(void *arg) 2071 { 2072 struct fw_xfer *xfer; 2073 struct firewire_comm *fc = (struct firewire_comm *)arg; 2074 struct fw_pkt *fp; 2075 int err = 0; 2076 2077 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2078 if(xfer == NULL){ 2079 return; 2080 } 2081 xfer->send.spd = 0; 2082 fc->status = FWBUSMGRELECT; 2083 2084 fp = &xfer->send.hdr; 2085 fp->mode.lreq.dest_hi = 0xffff; 2086 fp->mode.lreq.tlrt = 0; 2087 fp->mode.lreq.tcode = FWTCODE_LREQ; 2088 fp->mode.lreq.pri = 0; 2089 fp->mode.lreq.src = 0; 2090 fp->mode.lreq.len = 8; 2091 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2092 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2093 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2094 xfer->send.payload[0] = htonl(0x3f); 2095 xfer->send.payload[1] = htonl(fc->nodeid); 2096 xfer->act.hand = fw_try_bmr_callback; 2097 2098 err = fw_asyreq(fc, -1, xfer); 2099 if(err){ 2100 fw_xfer_free_buf(xfer); 2101 return; 2102 } 2103 return; 2104 } 2105 2106 #ifdef FW_VMACCESS 2107 /* 2108 * Software implementation for physical memory block access. 2109 * XXX:Too slow, usef for debug purpose only. 2110 */ 2111 static void 2112 fw_vmaccess(struct fw_xfer *xfer){ 2113 struct fw_pkt *rfp, *sfp = NULL; 2114 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2115 2116 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2117 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2118 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2119 if(xfer->resp != 0){ 2120 fw_xfer_free( xfer); 2121 return; 2122 } 2123 if(xfer->recv.buf == NULL){ 2124 fw_xfer_free( xfer); 2125 return; 2126 } 2127 rfp = (struct fw_pkt *)xfer->recv.buf; 2128 switch(rfp->mode.hdr.tcode){ 2129 /* XXX need fix for 64bit arch */ 2130 case FWTCODE_WREQB: 2131 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2132 xfer->send.len = 12; 2133 sfp = (struct fw_pkt *)xfer->send.buf; 2134 bcopy(rfp->mode.wreqb.payload, 2135 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2136 sfp->mode.wres.tcode = FWTCODE_WRES; 2137 sfp->mode.wres.rtcode = 0; 2138 break; 2139 case FWTCODE_WREQQ: 2140 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2141 xfer->send.len = 12; 2142 sfp->mode.wres.tcode = FWTCODE_WRES; 2143 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2144 sfp->mode.wres.rtcode = 0; 2145 break; 2146 case FWTCODE_RREQB: 2147 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2148 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2149 sfp = (struct fw_pkt *)xfer->send.buf; 2150 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2151 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2152 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2153 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2154 sfp->mode.rresb.rtcode = 0; 2155 sfp->mode.rresb.extcode = 0; 2156 break; 2157 case FWTCODE_RREQQ: 2158 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2159 xfer->send.len = 16; 2160 sfp = (struct fw_pkt *)xfer->send.buf; 2161 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2162 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2163 sfp->mode.rresb.rtcode = 0; 2164 break; 2165 default: 2166 fw_xfer_free( xfer); 2167 return; 2168 } 2169 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2170 xfer->dst = ntohs(rfp->mode.hdr.src); 2171 xfer->act.hand = fw_xfer_free; 2172 xfer->retry_req = fw_asybusy; 2173 2174 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2175 sfp->mode.hdr.pri = 0; 2176 2177 fw_asyreq(xfer->fc, -1, xfer); 2178 /**/ 2179 return; 2180 } 2181 #endif 2182 2183 /* 2184 * CRC16 check-sum for IEEE1394 register blocks. 2185 */ 2186 uint16_t 2187 fw_crc16(uint32_t *ptr, uint32_t len){ 2188 uint32_t i, sum, crc = 0; 2189 int shift; 2190 len = (len + 3) & ~3; 2191 for(i = 0 ; i < len ; i+= 4){ 2192 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2193 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2194 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2195 } 2196 crc &= 0xffff; 2197 } 2198 return((uint16_t) crc); 2199 } 2200 2201 static int 2202 fw_bmr(struct firewire_comm *fc) 2203 { 2204 struct fw_device fwdev; 2205 union fw_self_id *self_id; 2206 int cmstr; 2207 uint32_t quad; 2208 2209 /* Check to see if the current root node is cycle master capable */ 2210 self_id = fw_find_self_id(fc, fc->max_node); 2211 if (fc->max_node > 0) { 2212 /* XXX check cmc bit of businfo block rather than contender */ 2213 if (self_id->p0.link_active && self_id->p0.contender) 2214 cmstr = fc->max_node; 2215 else { 2216 device_printf(fc->bdev, 2217 "root node is not cycle master capable\n"); 2218 /* XXX shall we be the cycle master? */ 2219 cmstr = fc->nodeid; 2220 /* XXX need bus reset */ 2221 } 2222 } else 2223 cmstr = -1; 2224 2225 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2226 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2227 /* We are not the bus manager */ 2228 printf("\n"); 2229 return(0); 2230 } 2231 printf("(me)\n"); 2232 2233 /* Optimize gapcount */ 2234 if(fc->max_hop <= MAX_GAPHOP ) 2235 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2236 /* If we are the cycle master, nothing to do */ 2237 if (cmstr == fc->nodeid || cmstr == -1) 2238 return 0; 2239 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2240 bzero(&fwdev, sizeof(fwdev)); 2241 fwdev.fc = fc; 2242 fwdev.dst = cmstr; 2243 fwdev.speed = 0; 2244 fwdev.maxrec = 8; /* 512 */ 2245 fwdev.status = FWDEVINIT; 2246 /* Set cmstr bit on the cycle master */ 2247 quad = htonl(1 << 8); 2248 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2249 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2250 2251 return 0; 2252 } 2253 2254 static int 2255 fw_modevent(module_t mode, int type, void *data) 2256 { 2257 int err = 0; 2258 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2259 static eventhandler_tag fwdev_ehtag = NULL; 2260 #endif 2261 2262 switch (type) { 2263 case MOD_LOAD: 2264 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2265 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2266 fwdev_clone, 0, 1000); 2267 #endif 2268 break; 2269 case MOD_UNLOAD: 2270 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2271 if (fwdev_ehtag != NULL) 2272 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2273 #endif 2274 break; 2275 case MOD_SHUTDOWN: 2276 break; 2277 default: 2278 return (EOPNOTSUPP); 2279 } 2280 return (err); 2281 } 2282 2283 2284 #ifdef __DragonFly__ 2285 DECLARE_DUMMY_MODULE(firewire); 2286 #endif 2287 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2288 MODULE_VERSION(firewire, 1); 2289