1 /* 2 * Copyright (c) 2003 Hidetoshi Shimokawa 3 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the acknowledgement as bellow: 16 * 17 * This product includes software developed by K. Kobayashi and H. Shimokawa 18 * 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 25 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 * 34 * $FreeBSD: src/sys/dev/firewire/firewire.c,v 1.68 2004/01/08 14:58:09 simokawa Exp $ 35 * $DragonFly: src/sys/bus/firewire/firewire.c,v 1.20 2007/11/14 18:27:52 swildner Exp $ 36 * 37 */ 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/types.h> 42 43 #include <sys/kernel.h> 44 #include <sys/malloc.h> 45 #include <sys/conf.h> 46 #include <sys/bus.h> /* used by smbus and newbus */ 47 #include <sys/sysctl.h> 48 #include <sys/thread2.h> 49 50 #if defined(__DragonFly__) || __FreeBSD_version < 500000 51 #include <machine/clock.h> /* for DELAY() */ 52 #endif 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 int firewire_probe (device_t); 92 static int firewire_attach (device_t); 93 static int firewire_detach (device_t); 94 static int firewire_resume (device_t); 95 #if 0 96 static int firewire_shutdown (device_t); 97 #endif 98 static device_t firewire_add_child (device_t, device_t, int, const char *, int); 99 static void fw_try_bmr (void *); 100 static void fw_try_bmr_callback (struct fw_xfer *); 101 static void fw_asystart (struct fw_xfer *); 102 static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *); 103 static void fw_bus_probe (struct firewire_comm *); 104 static void fw_bus_explore (struct firewire_comm *); 105 static void fw_bus_explore_callback (struct fw_xfer *); 106 static void fw_attach_dev (struct firewire_comm *); 107 #ifdef FW_VMACCESS 108 static void fw_vmaccess (struct fw_xfer *); 109 #endif 110 struct fw_xfer *asyreqq (struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 111 u_int32_t, u_int32_t, void (*)(struct fw_xfer *)); 112 static int fw_bmr (struct firewire_comm *); 113 114 /* 115 * note: bus_generic_identify() will automatically install a "firewire" 116 * device under any attached fwohci device. 117 */ 118 static device_method_t firewire_methods[] = { 119 /* Device interface */ 120 DEVMETHOD(device_identify, bus_generic_identify), 121 DEVMETHOD(device_probe, firewire_probe), 122 DEVMETHOD(device_attach, firewire_attach), 123 DEVMETHOD(device_detach, firewire_detach), 124 DEVMETHOD(device_suspend, bus_generic_suspend), 125 DEVMETHOD(device_resume, firewire_resume), 126 DEVMETHOD(device_shutdown, bus_generic_shutdown), 127 128 /* Bus interface */ 129 DEVMETHOD(bus_add_child, firewire_add_child), 130 DEVMETHOD(bus_print_child, bus_generic_print_child), 131 132 { 0, 0 } 133 }; 134 char *linkspeed[] = { 135 "S100", "S200", "S400", "S800", 136 "S1600", "S3200", "undef", "undef" 137 }; 138 139 static char *tcode_str[] = { 140 "WREQQ", "WREQB", "WRES", "undef", 141 "RREQQ", "RREQB", "RRESQ", "RRESB", 142 "CYCS", "LREQ", "STREAM", "LRES", 143 "undef", "undef", "PHY", "undef" 144 }; 145 146 /* IEEE-1394a Table C-2 Gap count as a function of hops*/ 147 #define MAX_GAPHOP 15 148 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 149 21, 24, 26, 29, 32, 35, 37, 40}; 150 151 static driver_t firewire_driver = { 152 "firewire", 153 firewire_methods, 154 sizeof(struct firewire_softc), 155 }; 156 157 /* 158 * Lookup fwdev by node id. 159 */ 160 struct fw_device * 161 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 162 { 163 struct fw_device *fwdev; 164 165 crit_enter(); 166 STAILQ_FOREACH(fwdev, &fc->devices, link) 167 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 168 break; 169 crit_exit(); 170 171 return fwdev; 172 } 173 174 /* 175 * Lookup fwdev by EUI64. 176 */ 177 struct fw_device * 178 fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 179 { 180 struct fw_device *fwdev; 181 182 crit_enter(); 183 STAILQ_FOREACH(fwdev, &fc->devices, link) 184 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 185 break; 186 crit_exit(); 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 kprintf("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 kprintf("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 kprintf("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 kprintf("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 kprintf("xferq->start == NULL\n"); 242 return EINVAL; 243 } 244 if(!(xferq->queued < xferq->maxq)){ 245 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 246 xferq->queued); 247 return EINVAL; 248 } 249 250 microtime(&xfer->tv); 251 if (info->flag & FWTI_TLABEL) { 252 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 253 return EIO; 254 fp->mode.hdr.tlrt = tl << 2; 255 } 256 257 xfer->tl = tl; 258 xfer->resp = 0; 259 xfer->fc = fc; 260 xfer->q = xferq; 261 xfer->retry_req = fw_asybusy; 262 263 fw_asystart(xfer); 264 return err; 265 } 266 /* 267 * Wakeup blocked process. 268 */ 269 void 270 fw_asy_callback(struct fw_xfer *xfer){ 271 wakeup(xfer); 272 return; 273 } 274 /* 275 * Postpone to later retry. 276 */ 277 void 278 fw_asybusy(struct fw_xfer *xfer) 279 { 280 kprintf("fw_asybusy\n"); 281 /* 282 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 283 */ 284 #if 0 285 DELAY(20000); 286 #endif 287 fw_asystart(xfer); 288 return; 289 } 290 291 /* 292 * Async. request with given xfer structure. 293 */ 294 static void 295 fw_asystart(struct fw_xfer *xfer) 296 { 297 struct firewire_comm *fc = xfer->fc; 298 299 if(xfer->retry++ >= fc->max_asyretry){ 300 device_printf(fc->bdev, "max_asyretry exceeded\n"); 301 xfer->resp = EBUSY; 302 xfer->state = FWXF_BUSY; 303 xfer->act.hand(xfer); 304 return; 305 } 306 #if 0 /* XXX allow bus explore packets only after bus rest */ 307 if (fc->status < FWBUSEXPLORE) { 308 xfer->resp = EAGAIN; 309 xfer->state = FWXF_BUSY; 310 if (xfer->act.hand != NULL) 311 xfer->act.hand(xfer); 312 return; 313 } 314 #endif 315 crit_enter(); 316 xfer->state = FWXF_INQ; 317 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 318 xfer->q->queued ++; 319 crit_exit(); 320 /* XXX just queue for mbuf */ 321 if (xfer->mbuf == NULL) 322 xfer->q->start(fc); 323 return; 324 } 325 326 static int 327 firewire_probe(device_t dev) 328 { 329 device_set_desc(dev, "IEEE1394(FireWire) bus"); 330 return (0); 331 } 332 333 static void 334 firewire_xfer_timeout(struct firewire_comm *fc) 335 { 336 struct fw_xfer *xfer; 337 struct tlabel *tl; 338 struct timeval tv; 339 struct timeval split_timeout; 340 int i; 341 342 split_timeout.tv_sec = 0; 343 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 344 345 microtime(&tv); 346 timevalsub(&tv, &split_timeout); 347 348 crit_enter(); 349 for (i = 0; i < 0x40; i ++) { 350 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 351 xfer = tl->xfer; 352 if (timevalcmp(&xfer->tv, &tv, >)) 353 /* the rests are newer than this */ 354 break; 355 if (xfer->state == FWXF_START) 356 /* not sent yet */ 357 break; 358 device_printf(fc->bdev, 359 "split transaction timeout dst=0x%x tl=0x%x state=%d\n", 360 xfer->send.hdr.mode.hdr.dst, i, xfer->state); 361 xfer->resp = ETIMEDOUT; 362 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 363 fw_xfer_done(xfer); 364 } 365 } 366 crit_exit(); 367 } 368 369 #define WATCHDOC_HZ 10 370 static void 371 firewire_watchdog(void *arg) 372 { 373 struct firewire_comm *fc; 374 static int watchdoc_clock = 0; 375 376 fc = (struct firewire_comm *)arg; 377 378 /* 379 * At boot stage, the device interrupt is disabled and 380 * We encounter a timeout easily. To avoid this, 381 * ignore clock interrupt for a while. 382 */ 383 if (watchdoc_clock > WATCHDOC_HZ * 15) { 384 firewire_xfer_timeout(fc); 385 fc->timeout(fc); 386 } else 387 watchdoc_clock ++; 388 389 callout_reset(&fc->timeout_callout, hz / WATCHDOC_HZ, 390 (void *)firewire_watchdog, (void *)fc); 391 } 392 393 /* 394 * The attach routine. 395 */ 396 static int 397 firewire_attach(device_t dev) 398 { 399 int unit; 400 struct firewire_softc *sc = device_get_softc(dev); 401 device_t pa = device_get_parent(dev); 402 struct firewire_comm *fc; 403 404 fc = (struct firewire_comm *)device_get_softc(pa); 405 sc->fc = fc; 406 fc->status = FWBUSNOTREADY; 407 408 unit = device_get_unit(dev); 409 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 410 411 fwdev_makedev(sc); 412 413 CALLOUT_INIT(&sc->fc->timeout_callout); 414 CALLOUT_INIT(&sc->fc->bmr_callout); 415 CALLOUT_INIT(&sc->fc->retry_probe_callout); 416 CALLOUT_INIT(&sc->fc->busprobe_callout); 417 418 callout_reset(&sc->fc->timeout_callout, hz, 419 (void *)firewire_watchdog, (void *)sc->fc); 420 421 /* Locate our children */ 422 bus_generic_probe(dev); 423 424 /* launch attachement of the added children */ 425 bus_generic_attach(dev); 426 427 /* bus_reset */ 428 fw_busreset(fc); 429 fc->ibr(fc); 430 431 return 0; 432 } 433 434 /* 435 * Attach it as child. 436 */ 437 static device_t 438 firewire_add_child(device_t bus, device_t parent, int order, const char *name, int unit) 439 { 440 device_t child; 441 struct firewire_softc *sc; 442 443 sc = (struct firewire_softc *)device_get_softc(parent); 444 child = device_add_child(parent, name, unit); 445 if (child) { 446 device_set_ivars(child, sc->fc); 447 device_probe_and_attach(child); 448 } 449 450 return child; 451 } 452 453 static int 454 firewire_resume(device_t dev) 455 { 456 struct firewire_softc *sc; 457 458 sc = (struct firewire_softc *)device_get_softc(dev); 459 sc->fc->status = FWBUSNOTREADY; 460 461 bus_generic_resume(dev); 462 463 return(0); 464 } 465 466 /* 467 * Dettach it. 468 */ 469 static int 470 firewire_detach(device_t dev) 471 { 472 struct firewire_softc *sc; 473 struct csrdir *csrd, *next; 474 struct fw_device *fwdev, *fwdev_next; 475 int err; 476 477 sc = (struct firewire_softc *)device_get_softc(dev); 478 if ((err = fwdev_destroydev(sc)) != 0) 479 return err; 480 481 if ((err = bus_generic_detach(dev)) != 0) 482 return err; 483 484 callout_stop(&sc->fc->timeout_callout); 485 callout_stop(&sc->fc->bmr_callout); 486 callout_stop(&sc->fc->retry_probe_callout); 487 callout_stop(&sc->fc->busprobe_callout); 488 489 /* XXX xfree_free and callout_stop on all xfers */ 490 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 491 fwdev = fwdev_next) { 492 fwdev_next = STAILQ_NEXT(fwdev, link); 493 kfree(fwdev, M_FW); 494 } 495 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 496 next = SLIST_NEXT(csrd, link); 497 kfree(csrd, M_FW); 498 } 499 kfree(sc->fc->topology_map, M_FW); 500 kfree(sc->fc->speed_map, M_FW); 501 kfree(sc->fc->crom_src_buf, M_FW); 502 return(0); 503 } 504 #if 0 505 static int 506 firewire_shutdown( device_t dev ) 507 { 508 return 0; 509 } 510 #endif 511 512 513 static void 514 fw_xferq_drain(struct fw_xferq *xferq) 515 { 516 struct fw_xfer *xfer; 517 518 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 519 STAILQ_REMOVE_HEAD(&xferq->q, link); 520 xferq->queued --; 521 xfer->resp = EAGAIN; 522 xfer->state = FWXF_SENTERR; 523 fw_xfer_done(xfer); 524 } 525 } 526 527 void 528 fw_drain_txq(struct firewire_comm *fc) 529 { 530 int i; 531 532 fw_xferq_drain(fc->atq); 533 fw_xferq_drain(fc->ats); 534 for(i = 0; i < fc->nisodma; i++) 535 fw_xferq_drain(fc->it[i]); 536 } 537 538 static void 539 fw_reset_csr(struct firewire_comm *fc) 540 { 541 int i; 542 543 CSRARC(fc, STATE_CLEAR) 544 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 545 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 546 CSRARC(fc, NODE_IDS) = 0x3f; 547 548 CSRARC(fc, TOPO_MAP + 8) = 0; 549 fc->irm = -1; 550 551 fc->max_node = -1; 552 553 for(i = 2; i < 0x100/4 - 2 ; i++){ 554 CSRARC(fc, SPED_MAP + i * 4) = 0; 555 } 556 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 557 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 558 CSRARC(fc, RESET_START) = 0; 559 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 560 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 561 CSRARC(fc, CYCLE_TIME) = 0x0; 562 CSRARC(fc, BUS_TIME) = 0x0; 563 CSRARC(fc, BUS_MGR_ID) = 0x3f; 564 CSRARC(fc, BANDWIDTH_AV) = 4915; 565 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 566 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 567 CSRARC(fc, IP_CHANNELS) = (1 << 31); 568 569 CSRARC(fc, CONF_ROM) = 0x04 << 24; 570 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 571 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 572 1 << 28 | 0xff << 16 | 0x09 << 8; 573 CSRARC(fc, CONF_ROM + 0xc) = 0; 574 575 /* DV depend CSRs see blue book */ 576 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 577 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 578 579 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 580 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 581 } 582 583 static void 584 fw_init_crom(struct firewire_comm *fc) 585 { 586 struct crom_src *src; 587 588 fc->crom_src_buf = (struct crom_src_buf *) 589 kmalloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 590 if (fc->crom_src_buf == NULL) 591 return; 592 593 src = &fc->crom_src_buf->src; 594 bzero(src, sizeof(struct crom_src)); 595 596 /* BUS info sample */ 597 src->hdr.info_len = 4; 598 599 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 600 601 src->businfo.irmc = 1; 602 src->businfo.cmc = 1; 603 src->businfo.isc = 1; 604 src->businfo.bmc = 1; 605 src->businfo.pmc = 0; 606 src->businfo.cyc_clk_acc = 100; 607 src->businfo.max_rec = fc->maxrec; 608 src->businfo.max_rom = MAXROM_4; 609 src->businfo.generation = 1; 610 src->businfo.link_spd = fc->speed; 611 612 src->businfo.eui64.hi = fc->eui.hi; 613 src->businfo.eui64.lo = fc->eui.lo; 614 615 STAILQ_INIT(&src->chunk_list); 616 617 fc->crom_src = src; 618 fc->crom_root = &fc->crom_src_buf->root; 619 } 620 621 static void 622 fw_reset_crom(struct firewire_comm *fc) 623 { 624 struct crom_src_buf *buf; 625 struct crom_src *src; 626 struct crom_chunk *root; 627 628 if (fc->crom_src_buf == NULL) 629 fw_init_crom(fc); 630 631 buf = fc->crom_src_buf; 632 src = fc->crom_src; 633 root = fc->crom_root; 634 635 STAILQ_INIT(&src->chunk_list); 636 637 bzero(root, sizeof(struct crom_chunk)); 638 crom_add_chunk(src, NULL, root, 0); 639 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 640 /* private company_id */ 641 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 642 #ifdef __DragonFly__ 643 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 644 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version); 645 #else 646 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 647 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 648 #endif 649 crom_add_simple_text(src, root, &buf->hw, hostname); 650 } 651 652 /* 653 * Called after bus reset. 654 */ 655 void 656 fw_busreset(struct firewire_comm *fc) 657 { 658 struct firewire_dev_comm *fdc; 659 struct crom_src *src; 660 device_t *devlistp; 661 void *newrom; 662 int i, devcnt; 663 664 switch(fc->status){ 665 case FWBUSMGRELECT: 666 callout_stop(&fc->bmr_callout); 667 break; 668 default: 669 break; 670 } 671 fc->status = FWBUSRESET; 672 fw_reset_csr(fc); 673 fw_reset_crom(fc); 674 675 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 676 for( i = 0 ; i < devcnt ; i++) 677 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 678 fdc = device_get_softc(devlistp[i]); 679 if (fdc->post_busreset != NULL) 680 fdc->post_busreset(fdc); 681 } 682 kfree(devlistp, M_TEMP); 683 } 684 685 newrom = kmalloc(CROMSIZE, M_FW, M_WAITOK | M_ZERO); 686 src = &fc->crom_src_buf->src; 687 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 688 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 689 /* bump generation and reload */ 690 src->businfo.generation ++; 691 /* generation must be between 0x2 and 0xF */ 692 if (src->businfo.generation < 2) 693 src->businfo.generation ++; 694 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 695 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 696 } 697 kfree(newrom, M_FW); 698 } 699 700 /* Call once after reboot */ 701 void 702 fw_init(struct firewire_comm *fc) 703 { 704 int i; 705 struct csrdir *csrd; 706 #ifdef FW_VMACCESS 707 struct fw_xfer *xfer; 708 struct fw_bind *fwb; 709 #endif 710 711 fc->max_asyretry = FW_MAXASYRTY; 712 713 fc->arq->queued = 0; 714 fc->ars->queued = 0; 715 fc->atq->queued = 0; 716 fc->ats->queued = 0; 717 718 fc->arq->buf = NULL; 719 fc->ars->buf = NULL; 720 fc->atq->buf = NULL; 721 fc->ats->buf = NULL; 722 723 fc->arq->flag = 0; 724 fc->ars->flag = 0; 725 fc->atq->flag = 0; 726 fc->ats->flag = 0; 727 728 STAILQ_INIT(&fc->atq->q); 729 STAILQ_INIT(&fc->ats->q); 730 731 for( i = 0 ; i < fc->nisodma ; i ++ ){ 732 fc->it[i]->queued = 0; 733 fc->ir[i]->queued = 0; 734 735 fc->it[i]->start = NULL; 736 fc->ir[i]->start = NULL; 737 738 fc->it[i]->buf = NULL; 739 fc->ir[i]->buf = NULL; 740 741 fc->it[i]->flag = FWXFERQ_STREAM; 742 fc->ir[i]->flag = FWXFERQ_STREAM; 743 744 STAILQ_INIT(&fc->it[i]->q); 745 STAILQ_INIT(&fc->ir[i]->q); 746 747 STAILQ_INIT(&fc->it[i]->binds); 748 STAILQ_INIT(&fc->ir[i]->binds); 749 } 750 751 fc->arq->maxq = FWMAXQUEUE; 752 fc->ars->maxq = FWMAXQUEUE; 753 fc->atq->maxq = FWMAXQUEUE; 754 fc->ats->maxq = FWMAXQUEUE; 755 756 for( i = 0 ; i < fc->nisodma ; i++){ 757 fc->ir[i]->maxq = FWMAXQUEUE; 758 fc->it[i]->maxq = FWMAXQUEUE; 759 } 760 /* Initialize csr registers */ 761 fc->topology_map = kmalloc(sizeof(struct fw_topology_map), 762 M_FW, M_WAITOK | M_ZERO); 763 fc->speed_map = kmalloc(sizeof(struct fw_speed_map), 764 M_FW, M_WAITOK | M_ZERO); 765 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 766 CSRARC(fc, TOPO_MAP + 4) = 1; 767 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 768 CSRARC(fc, SPED_MAP + 4) = 1; 769 770 STAILQ_INIT(&fc->devices); 771 772 /* Initialize csr ROM work space */ 773 SLIST_INIT(&fc->ongocsr); 774 SLIST_INIT(&fc->csrfree); 775 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 776 csrd = kmalloc(sizeof(struct csrdir), M_FW, M_WAITOK); 777 if(csrd == NULL) break; 778 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 779 } 780 781 /* Initialize Async handlers */ 782 STAILQ_INIT(&fc->binds); 783 for( i = 0 ; i < 0x40 ; i++){ 784 STAILQ_INIT(&fc->tlabels[i]); 785 } 786 787 /* DV depend CSRs see blue book */ 788 #if 0 789 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 790 CSRARC(fc, oPCR) = 0x8000007a; 791 for(i = 4 ; i < 0x7c/4 ; i+=4){ 792 CSRARC(fc, i + oPCR) = 0x8000007a; 793 } 794 795 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 796 CSRARC(fc, iPCR) = 0x803f0000; 797 for(i = 4 ; i < 0x7c/4 ; i+=4){ 798 CSRARC(fc, i + iPCR) = 0x0; 799 } 800 #endif 801 802 fc->crom_src_buf = NULL; 803 804 #ifdef FW_VMACCESS 805 xfer = fw_xfer_alloc(); 806 if(xfer == NULL) return; 807 808 fwb = kmalloc(sizeof (struct fw_bind), M_FW, M_WAITOK); 809 xfer->act.hand = fw_vmaccess; 810 xfer->fc = fc; 811 xfer->sc = NULL; 812 813 fwb->start_hi = 0x2; 814 fwb->start_lo = 0; 815 fwb->addrlen = 0xffffffff; 816 fwb->xfer = xfer; 817 fw_bindadd(fc, fwb); 818 #endif 819 } 820 821 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 822 ((fwb)->end < (addr))?1:0) 823 824 /* 825 * To lookup binded process from IEEE1394 address. 826 */ 827 struct fw_bind * 828 fw_bindlookup(struct firewire_comm *fc, u_int16_t dest_hi, u_int32_t dest_lo) 829 { 830 u_int64_t addr; 831 struct fw_bind *tfw; 832 833 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 834 STAILQ_FOREACH(tfw, &fc->binds, fclist) 835 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0) 836 return(tfw); 837 return(NULL); 838 } 839 840 /* 841 * To bind IEEE1394 address block to process. 842 */ 843 int 844 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 845 { 846 struct fw_bind *tfw, *prev = NULL; 847 848 if (fwb->start > fwb->end) { 849 kprintf("%s: invalid range\n", __func__); 850 return EINVAL; 851 } 852 853 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 854 if (fwb->end < tfw->start) 855 break; 856 prev = tfw; 857 } 858 if (prev == NULL) { 859 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 860 goto out; 861 } 862 if (prev->end < fwb->start) { 863 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 864 goto out; 865 } 866 867 kprintf("%s: bind failed\n", __func__); 868 return (EBUSY); 869 870 out: 871 if (fwb->act_type == FWACT_CH) 872 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 873 return (0); 874 } 875 876 /* 877 * To free IEEE1394 address block. 878 */ 879 int 880 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 881 { 882 #if 0 883 struct fw_xfer *xfer, *next; 884 #endif 885 struct fw_bind *tfw; 886 887 crit_enter(); 888 STAILQ_FOREACH(tfw, &fc->binds, fclist) 889 if (tfw == fwb) { 890 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 891 goto found; 892 } 893 894 kprintf("%s: no such bind\n", __func__); 895 crit_exit(); 896 return (1); 897 found: 898 #if 0 899 /* shall we do this? */ 900 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 901 next = STAILQ_NEXT(xfer, link); 902 fw_xfer_free(xfer); 903 } 904 STAILQ_INIT(&fwb->xferlist); 905 #endif 906 907 crit_exit(); 908 return 0; 909 } 910 911 /* 912 * To free transaction label. 913 */ 914 static void 915 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 916 { 917 struct tlabel *tl; 918 919 crit_enter(); 920 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 921 tl = STAILQ_NEXT(tl, link)){ 922 if(tl->xfer == xfer){ 923 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 924 kfree(tl, M_FW); 925 break; 926 } 927 } 928 crit_exit(); 929 } 930 931 /* 932 * To obtain XFER structure by transaction label. 933 */ 934 static struct fw_xfer * 935 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 936 { 937 struct fw_xfer *xfer; 938 struct tlabel *tl; 939 940 crit_enter(); 941 942 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 943 tl = STAILQ_NEXT(tl, link)){ 944 if(tl->xfer->send.hdr.mode.hdr.dst == node){ 945 xfer = tl->xfer; 946 crit_exit(); 947 if (firewire_debug > 2) 948 kprintf("fw_tl2xfer: found tl=%d\n", tlabel); 949 return(xfer); 950 } 951 } 952 if (firewire_debug > 1) 953 kprintf("fw_tl2xfer: not found tl=%d\n", tlabel); 954 crit_exit(); 955 return(NULL); 956 } 957 958 /* 959 * To allocate IEEE1394 XFER structure. 960 */ 961 struct fw_xfer * 962 fw_xfer_alloc(struct malloc_type *type) 963 { 964 struct fw_xfer *xfer; 965 966 xfer = kmalloc(sizeof(struct fw_xfer), type, M_INTWAIT | M_ZERO); 967 xfer->malloc = type; 968 969 return xfer; 970 } 971 972 struct fw_xfer * 973 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 974 { 975 struct fw_xfer *xfer; 976 977 xfer = fw_xfer_alloc(type); 978 xfer->send.pay_len = send_len; 979 xfer->recv.pay_len = recv_len; 980 if (xfer == NULL) 981 return(NULL); 982 if (send_len > 0) { 983 xfer->send.payload = kmalloc(send_len, type, M_INTWAIT | M_ZERO); 984 if (xfer->send.payload == NULL) { 985 fw_xfer_free(xfer); 986 return(NULL); 987 } 988 } 989 if (recv_len > 0) { 990 xfer->recv.payload = kmalloc(recv_len, type, M_INTWAIT); 991 if (xfer->recv.payload == NULL) { 992 if (xfer->send.payload != NULL) 993 kfree(xfer->send.payload, type); 994 fw_xfer_free(xfer); 995 return(NULL); 996 } 997 } 998 return(xfer); 999 } 1000 1001 /* 1002 * IEEE1394 XFER post process. 1003 */ 1004 void 1005 fw_xfer_done(struct fw_xfer *xfer) 1006 { 1007 if (xfer->act.hand == NULL) { 1008 kprintf("act.hand == NULL\n"); 1009 return; 1010 } 1011 1012 if (xfer->fc == NULL) 1013 panic("fw_xfer_done: why xfer->fc is NULL?"); 1014 1015 xfer->act.hand(xfer); 1016 } 1017 1018 void 1019 fw_xfer_unload(struct fw_xfer* xfer) 1020 { 1021 if(xfer == NULL ) return; 1022 if(xfer->state == FWXF_INQ){ 1023 kprintf("fw_xfer_free FWXF_INQ\n"); 1024 crit_enter(); 1025 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1026 xfer->q->queued --; 1027 crit_exit(); 1028 } 1029 if (xfer->fc != NULL) { 1030 #if 1 1031 if(xfer->state == FWXF_START) 1032 /* 1033 * This could happen if: 1034 * 1. We call fwohci_arcv() before fwohci_txd(). 1035 * 2. firewire_watch() is called. 1036 */ 1037 kprintf("fw_xfer_free FWXF_START\n"); 1038 #endif 1039 fw_tl_free(xfer->fc, xfer); 1040 } 1041 xfer->state = FWXF_INIT; 1042 xfer->resp = 0; 1043 xfer->retry = 0; 1044 } 1045 /* 1046 * To free IEEE1394 XFER structure. 1047 */ 1048 void 1049 fw_xfer_free_buf( struct fw_xfer* xfer) 1050 { 1051 if (xfer == NULL) { 1052 kprintf("%s: xfer == NULL\n", __func__); 1053 return; 1054 } 1055 fw_xfer_unload(xfer); 1056 if(xfer->send.payload != NULL){ 1057 kfree(xfer->send.payload, xfer->malloc); 1058 } 1059 if(xfer->recv.payload != NULL){ 1060 kfree(xfer->recv.payload, xfer->malloc); 1061 } 1062 kfree(xfer, xfer->malloc); 1063 } 1064 1065 void 1066 fw_xfer_free( struct fw_xfer* xfer) 1067 { 1068 if (xfer == NULL) { 1069 kprintf("%s: xfer == NULL\n", __func__); 1070 return; 1071 } 1072 fw_xfer_unload(xfer); 1073 kfree(xfer, xfer->malloc); 1074 } 1075 1076 void 1077 fw_asy_callback_free(struct fw_xfer *xfer) 1078 { 1079 #if 0 1080 kprintf("asyreq done state=%d resp=%d\n", 1081 xfer->state, xfer->resp); 1082 #endif 1083 fw_xfer_free(xfer); 1084 } 1085 1086 /* 1087 * To configure PHY. 1088 */ 1089 static void 1090 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1091 { 1092 struct fw_xfer *xfer; 1093 struct fw_pkt *fp; 1094 1095 fc->status = FWBUSPHYCONF; 1096 1097 xfer = fw_xfer_alloc(M_FWXFER); 1098 if (xfer == NULL) 1099 return; 1100 xfer->fc = fc; 1101 xfer->retry_req = fw_asybusy; 1102 xfer->act.hand = fw_asy_callback_free; 1103 1104 fp = &xfer->send.hdr; 1105 fp->mode.ld[1] = 0; 1106 if (root_node >= 0) 1107 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1108 if (gap_count >= 0) 1109 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1110 fp->mode.ld[2] = ~fp->mode.ld[1]; 1111 /* XXX Dangerous, how to pass PHY packet to device driver */ 1112 fp->mode.common.tcode |= FWTCODE_PHY; 1113 1114 if (firewire_debug) 1115 kprintf("send phy_config root_node=%d gap_count=%d\n", 1116 root_node, gap_count); 1117 fw_asyreq(fc, -1, xfer); 1118 } 1119 1120 #if 0 1121 /* 1122 * Dump self ID. 1123 */ 1124 static void 1125 fw_print_sid(u_int32_t sid) 1126 { 1127 union fw_self_id *s; 1128 s = (union fw_self_id *) &sid; 1129 kprintf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1130 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1131 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1132 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1133 s->p0.power_class, s->p0.port0, s->p0.port1, 1134 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1135 } 1136 #endif 1137 1138 /* 1139 * To receive self ID. 1140 */ 1141 void 1142 fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) 1143 { 1144 u_int32_t *p; 1145 union fw_self_id *self_id; 1146 u_int i, j, node, c_port = 0, i_branch = 0; 1147 1148 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1149 fc->status = FWBUSINIT; 1150 fc->max_node = fc->nodeid & 0x3f; 1151 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1152 fc->status = FWBUSCYMELECT; 1153 fc->topology_map->crc_len = 2; 1154 fc->topology_map->generation ++; 1155 fc->topology_map->self_id_count = 0; 1156 fc->topology_map->node_count = 0; 1157 fc->speed_map->generation ++; 1158 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1159 self_id = &fc->topology_map->self_id[0]; 1160 for(i = 0; i < fc->sid_cnt; i ++){ 1161 if (sid[1] != ~sid[0]) { 1162 kprintf("fw_sidrcv: invalid self-id packet\n"); 1163 sid += 2; 1164 continue; 1165 } 1166 *self_id = *((union fw_self_id *)sid); 1167 fc->topology_map->crc_len++; 1168 if(self_id->p0.sequel == 0){ 1169 fc->topology_map->node_count ++; 1170 c_port = 0; 1171 #if 0 1172 fw_print_sid(sid[0]); 1173 #endif 1174 node = self_id->p0.phy_id; 1175 if(fc->max_node < node){ 1176 fc->max_node = self_id->p0.phy_id; 1177 } 1178 /* XXX I'm not sure this is the right speed_map */ 1179 fc->speed_map->speed[node][node] 1180 = self_id->p0.phy_speed; 1181 for (j = 0; j < node; j ++) { 1182 fc->speed_map->speed[j][node] 1183 = fc->speed_map->speed[node][j] 1184 = min(fc->speed_map->speed[j][j], 1185 self_id->p0.phy_speed); 1186 } 1187 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1188 (self_id->p0.link_active && self_id->p0.contender)) { 1189 fc->irm = self_id->p0.phy_id; 1190 } 1191 if(self_id->p0.port0 >= 0x2){ 1192 c_port++; 1193 } 1194 if(self_id->p0.port1 >= 0x2){ 1195 c_port++; 1196 } 1197 if(self_id->p0.port2 >= 0x2){ 1198 c_port++; 1199 } 1200 } 1201 if(c_port > 2){ 1202 i_branch += (c_port - 2); 1203 } 1204 sid += 2; 1205 self_id++; 1206 fc->topology_map->self_id_count ++; 1207 } 1208 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1209 /* CRC */ 1210 fc->topology_map->crc = fw_crc16( 1211 (u_int32_t *)&fc->topology_map->generation, 1212 fc->topology_map->crc_len * 4); 1213 fc->speed_map->crc = fw_crc16( 1214 (u_int32_t *)&fc->speed_map->generation, 1215 fc->speed_map->crc_len * 4); 1216 /* byteswap and copy to CSR */ 1217 p = (u_int32_t *)fc->topology_map; 1218 for (i = 0; i <= fc->topology_map->crc_len; i++) 1219 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1220 p = (u_int32_t *)fc->speed_map; 1221 CSRARC(fc, SPED_MAP) = htonl(*p++); 1222 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1223 /* don't byte-swap u_int8_t array */ 1224 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1225 1226 fc->max_hop = fc->max_node - i_branch; 1227 kprintf(", maxhop <= %d", fc->max_hop); 1228 1229 if(fc->irm == -1 ){ 1230 kprintf(", Not found IRM capable node"); 1231 }else{ 1232 kprintf(", cable IRM = %d", fc->irm); 1233 if (fc->irm == fc->nodeid) 1234 kprintf(" (me)"); 1235 } 1236 kprintf("\n"); 1237 1238 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1239 if (fc->irm == fc->nodeid) { 1240 fc->status = FWBUSMGRDONE; 1241 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1242 fw_bmr(fc); 1243 } else { 1244 fc->status = FWBUSMGRELECT; 1245 callout_reset(&fc->bmr_callout, hz/8, 1246 (void *)fw_try_bmr, (void *)fc); 1247 } 1248 } else 1249 fc->status = FWBUSMGRDONE; 1250 1251 callout_reset(&fc->busprobe_callout, hz/4, 1252 (void *)fw_bus_probe, (void *)fc); 1253 } 1254 1255 /* 1256 * To probe devices on the IEEE1394 bus. 1257 */ 1258 static void 1259 fw_bus_probe(struct firewire_comm *fc) 1260 { 1261 struct fw_device *fwdev; 1262 1263 crit_enter(); 1264 fc->status = FWBUSEXPLORE; 1265 fc->retry_count = 0; 1266 1267 /* Invalidate all devices, just after bus reset. */ 1268 STAILQ_FOREACH(fwdev, &fc->devices, link) 1269 if (fwdev->status != FWDEVINVAL) { 1270 fwdev->status = FWDEVINVAL; 1271 fwdev->rcnt = 0; 1272 } 1273 1274 fc->ongonode = 0; 1275 fc->ongoaddr = CSRROMOFF; 1276 fc->ongodev = NULL; 1277 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1278 fw_bus_explore(fc); 1279 crit_exit(); 1280 } 1281 1282 /* 1283 * To collect device informations on the IEEE1394 bus. 1284 */ 1285 static void 1286 fw_bus_explore(struct firewire_comm *fc ) 1287 { 1288 int err = 0; 1289 struct fw_device *fwdev, *pfwdev, *tfwdev; 1290 u_int32_t addr; 1291 struct fw_xfer *xfer; 1292 struct fw_pkt *fp; 1293 1294 if(fc->status != FWBUSEXPLORE) 1295 return; 1296 1297 loop: 1298 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1299 1300 if(fc->ongonode > fc->max_node) goto done; 1301 if(fc->ongonode >= 0x3f) goto done; 1302 1303 /* check link */ 1304 /* XXX we need to check phy_id first */ 1305 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1306 if (firewire_debug) 1307 kprintf("node%d: link down\n", fc->ongonode); 1308 fc->ongonode++; 1309 goto loop; 1310 } 1311 1312 if(fc->ongoaddr <= CSRROMOFF && 1313 fc->ongoeui.hi == 0xffffffff && 1314 fc->ongoeui.lo == 0xffffffff ){ 1315 fc->ongoaddr = CSRROMOFF; 1316 addr = 0xf0000000 | fc->ongoaddr; 1317 }else if(fc->ongoeui.hi == 0xffffffff ){ 1318 fc->ongoaddr = CSRROMOFF + 0xc; 1319 addr = 0xf0000000 | fc->ongoaddr; 1320 }else if(fc->ongoeui.lo == 0xffffffff ){ 1321 fc->ongoaddr = CSRROMOFF + 0x10; 1322 addr = 0xf0000000 | fc->ongoaddr; 1323 }else if(fc->ongodev == NULL){ 1324 STAILQ_FOREACH(fwdev, &fc->devices, link) 1325 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1326 break; 1327 if(fwdev != NULL){ 1328 fwdev->dst = fc->ongonode; 1329 fwdev->status = FWDEVINIT; 1330 fc->ongodev = fwdev; 1331 fc->ongoaddr = CSRROMOFF; 1332 addr = 0xf0000000 | fc->ongoaddr; 1333 goto dorequest; 1334 } 1335 fwdev = kmalloc(sizeof(struct fw_device), M_FW, 1336 M_WAITOK | M_ZERO); 1337 fwdev->fc = fc; 1338 fwdev->rommax = 0; 1339 fwdev->dst = fc->ongonode; 1340 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1341 fwdev->status = FWDEVINIT; 1342 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1343 1344 pfwdev = NULL; 1345 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1346 if (tfwdev->eui.hi > fwdev->eui.hi || 1347 (tfwdev->eui.hi == fwdev->eui.hi && 1348 tfwdev->eui.lo > fwdev->eui.lo)) 1349 break; 1350 pfwdev = tfwdev; 1351 } 1352 if (pfwdev == NULL) 1353 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1354 else 1355 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1356 1357 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1358 linkspeed[fwdev->speed], 1359 fc->ongoeui.hi, fc->ongoeui.lo); 1360 1361 fc->ongodev = fwdev; 1362 fc->ongoaddr = CSRROMOFF; 1363 addr = 0xf0000000 | fc->ongoaddr; 1364 }else{ 1365 addr = 0xf0000000 | fc->ongoaddr; 1366 } 1367 dorequest: 1368 #if 0 1369 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1370 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1371 fw_bus_explore_callback); 1372 if(xfer == NULL) goto done; 1373 #else 1374 xfer = fw_xfer_alloc(M_FWXFER); 1375 if(xfer == NULL){ 1376 goto done; 1377 } 1378 xfer->send.spd = 0; 1379 fp = &xfer->send.hdr; 1380 fp->mode.rreqq.dest_hi = 0xffff; 1381 fp->mode.rreqq.tlrt = 0; 1382 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1383 fp->mode.rreqq.pri = 0; 1384 fp->mode.rreqq.src = 0; 1385 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode; 1386 fp->mode.rreqq.dest_lo = addr; 1387 xfer->act.hand = fw_bus_explore_callback; 1388 1389 if (firewire_debug) 1390 kprintf("node%d: explore addr=0x%x\n", 1391 fc->ongonode, fc->ongoaddr); 1392 err = fw_asyreq(fc, -1, xfer); 1393 if(err){ 1394 fw_xfer_free( xfer); 1395 return; 1396 } 1397 #endif 1398 return; 1399 done: 1400 /* fw_attach_devs */ 1401 fc->status = FWBUSEXPDONE; 1402 if (firewire_debug) 1403 kprintf("bus_explore done\n"); 1404 fw_attach_dev(fc); 1405 return; 1406 1407 } 1408 1409 /* Portable Async. request read quad */ 1410 struct fw_xfer * 1411 asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1412 u_int32_t addr_hi, u_int32_t addr_lo, 1413 void (*hand) (struct fw_xfer*)) 1414 { 1415 struct fw_xfer *xfer; 1416 struct fw_pkt *fp; 1417 int err; 1418 1419 xfer = fw_xfer_alloc(M_FWXFER); 1420 if (xfer == NULL) 1421 return NULL; 1422 1423 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */ 1424 fp = &xfer->send.hdr; 1425 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1426 if(tl & FWP_TL_VALID){ 1427 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1428 }else{ 1429 fp->mode.rreqq.tlrt = 0; 1430 } 1431 fp->mode.rreqq.tlrt |= rt & 0x3; 1432 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1433 fp->mode.rreqq.pri = 0; 1434 fp->mode.rreqq.src = 0; 1435 fp->mode.rreqq.dst = addr_hi >> 16; 1436 fp->mode.rreqq.dest_lo = addr_lo; 1437 xfer->act.hand = hand; 1438 1439 err = fw_asyreq(fc, -1, xfer); 1440 if(err){ 1441 fw_xfer_free( xfer); 1442 return NULL; 1443 } 1444 return xfer; 1445 } 1446 1447 /* 1448 * Callback for the IEEE1394 bus information collection. 1449 */ 1450 static void 1451 fw_bus_explore_callback(struct fw_xfer *xfer) 1452 { 1453 struct firewire_comm *fc; 1454 struct fw_pkt *sfp,*rfp; 1455 struct csrhdr *chdr; 1456 struct csrdir *csrd; 1457 struct csrreg *csrreg; 1458 u_int32_t offset; 1459 1460 1461 if(xfer == NULL) { 1462 kprintf("xfer == NULL\n"); 1463 return; 1464 } 1465 fc = xfer->fc; 1466 1467 if (firewire_debug) 1468 kprintf("node%d: callback addr=0x%x\n", 1469 fc->ongonode, fc->ongoaddr); 1470 1471 if(xfer->resp != 0){ 1472 kprintf("node%d: resp=%d addr=0x%x\n", 1473 fc->ongonode, xfer->resp, fc->ongoaddr); 1474 goto errnode; 1475 } 1476 1477 sfp = &xfer->send.hdr; 1478 rfp = &xfer->recv.hdr; 1479 #if 0 1480 { 1481 u_int32_t *qld; 1482 int i; 1483 qld = (u_int32_t *)xfer->recv.buf; 1484 kprintf("len:%d\n", xfer->recv.len); 1485 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1486 kprintf("0x%08x ", rfp->mode.ld[i/4]); 1487 if((i % 16) == 15) kprintf("\n"); 1488 } 1489 if((i % 16) != 15) kprintf("\n"); 1490 } 1491 #endif 1492 if(fc->ongodev == NULL){ 1493 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1494 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1495 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1496 /* If CSR is minimal confinguration, more investgation is not needed. */ 1497 if(chdr->info_len == 1){ 1498 if (firewire_debug) 1499 kprintf("node%d: minimal config\n", 1500 fc->ongonode); 1501 goto nextnode; 1502 }else{ 1503 fc->ongoaddr = CSRROMOFF + 0xc; 1504 } 1505 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1506 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1507 fc->ongoaddr = CSRROMOFF + 0x10; 1508 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1509 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1510 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1511 if (firewire_debug) 1512 kprintf("node%d: eui64 is zero.\n", 1513 fc->ongonode); 1514 goto nextnode; 1515 } 1516 fc->ongoaddr = CSRROMOFF; 1517 } 1518 }else{ 1519 if (fc->ongoaddr == CSRROMOFF && 1520 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1521 fc->ongodev->status = FWDEVATTACHED; 1522 goto nextnode; 1523 } 1524 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1525 if(fc->ongoaddr > fc->ongodev->rommax){ 1526 fc->ongodev->rommax = fc->ongoaddr; 1527 } 1528 csrd = SLIST_FIRST(&fc->ongocsr); 1529 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1530 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1531 offset = CSRROMOFF; 1532 }else{ 1533 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1534 offset = csrd->off; 1535 } 1536 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1537 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1538 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1539 csrd = SLIST_FIRST(&fc->csrfree); 1540 if(csrd == NULL){ 1541 goto nextnode; 1542 }else{ 1543 csrd->ongoaddr = fc->ongoaddr; 1544 fc->ongoaddr += csrreg->val * 4; 1545 csrd->off = fc->ongoaddr; 1546 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1547 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1548 goto nextaddr; 1549 } 1550 } 1551 } 1552 fc->ongoaddr += 4; 1553 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1554 (fc->ongodev->rommax < 0x414)){ 1555 if(fc->ongodev->rommax <= 0x414){ 1556 csrd = SLIST_FIRST(&fc->csrfree); 1557 if(csrd == NULL) goto nextnode; 1558 csrd->off = fc->ongoaddr; 1559 csrd->ongoaddr = fc->ongoaddr; 1560 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1561 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1562 } 1563 goto nextaddr; 1564 } 1565 1566 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1567 if(csrd == NULL){ 1568 goto nextnode; 1569 }; 1570 fc->ongoaddr = csrd->ongoaddr + 4; 1571 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1572 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1573 csrd = SLIST_FIRST(&fc->ongocsr); 1574 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1575 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1576 offset = CSRROMOFF; 1577 }else{ 1578 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1579 offset = csrd->off; 1580 } 1581 } 1582 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1583 goto nextnode; 1584 } 1585 } 1586 nextaddr: 1587 fw_xfer_free( xfer); 1588 fw_bus_explore(fc); 1589 return; 1590 errnode: 1591 fc->retry_count++; 1592 if (fc->ongodev != NULL) 1593 fc->ongodev->status = FWDEVINVAL; 1594 nextnode: 1595 fw_xfer_free( xfer); 1596 fc->ongonode++; 1597 /* housekeeping work space */ 1598 fc->ongoaddr = CSRROMOFF; 1599 fc->ongodev = NULL; 1600 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1601 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1602 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1603 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1604 } 1605 fw_bus_explore(fc); 1606 return; 1607 } 1608 1609 /* 1610 * To attach sub-devices layer onto IEEE1394 bus. 1611 */ 1612 static void 1613 fw_attach_dev(struct firewire_comm *fc) 1614 { 1615 struct fw_device *fwdev, *next; 1616 int i, err; 1617 device_t *devlistp; 1618 int devcnt; 1619 struct firewire_dev_comm *fdc; 1620 1621 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1622 next = STAILQ_NEXT(fwdev, link); 1623 if (fwdev->status == FWDEVINIT) { 1624 fwdev->status = FWDEVATTACHED; 1625 } else if (fwdev->status == FWDEVINVAL) { 1626 fwdev->rcnt ++; 1627 if (fwdev->rcnt > hold_count) { 1628 /* 1629 * Remove devices which have not been seen 1630 * for a while. 1631 */ 1632 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1633 link); 1634 kfree(fwdev, M_FW); 1635 } 1636 } 1637 } 1638 1639 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1640 if( err != 0 ) 1641 return; 1642 for( i = 0 ; i < devcnt ; i++){ 1643 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1644 fdc = device_get_softc(devlistp[i]); 1645 if (fdc->post_explore != NULL) 1646 fdc->post_explore(fdc); 1647 } 1648 } 1649 kfree(devlistp, M_TEMP); 1650 1651 if (fc->retry_count > 0) { 1652 kprintf("probe failed for %d node\n", fc->retry_count); 1653 #if 0 1654 callout_reset(&fc->retry_probe_callout, hz*2, 1655 (void *)fc->ibr, (void *)fc); 1656 #endif 1657 } 1658 return; 1659 } 1660 1661 /* 1662 * To allocate uniq transaction label. 1663 */ 1664 static int 1665 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1666 { 1667 u_int i; 1668 struct tlabel *tl, *tmptl; 1669 static u_int32_t label = 0; 1670 1671 crit_enter(); 1672 for( i = 0 ; i < 0x40 ; i ++){ 1673 label = (label + 1) & 0x3f; 1674 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1675 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1676 if (tmptl->xfer->send.hdr.mode.hdr.dst == 1677 xfer->send.hdr.mode.hdr.dst) 1678 break; 1679 } 1680 if(tmptl == NULL) { 1681 tl = kmalloc(sizeof(struct tlabel), M_FW, M_WAITOK); 1682 tl->xfer = xfer; 1683 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1684 crit_exit(); 1685 if (firewire_debug > 1) 1686 kprintf("fw_get_tlabel: dst=%d tl=%d\n", 1687 xfer->send.hdr.mode.hdr.dst, label); 1688 return(label); 1689 } 1690 } 1691 crit_exit(); 1692 1693 kprintf("fw_get_tlabel: no free tlabel\n"); 1694 return(-1); 1695 } 1696 1697 static void 1698 fw_rcv_copy(struct fw_rcv_buf *rb) 1699 { 1700 struct fw_pkt *pkt; 1701 u_char *p; 1702 struct tcode_info *tinfo; 1703 u_int res, i, len, plen; 1704 1705 rb->xfer->recv.spd -= rb->spd; 1706 1707 pkt = (struct fw_pkt *)rb->vec->iov_base; 1708 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1709 1710 /* Copy header */ 1711 p = (u_char *)&rb->xfer->recv.hdr; 1712 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1713 rb->vec->iov_base = (uint8_t *)rb->vec->iov_base + tinfo->hdr_len; 1714 rb->vec->iov_len -= tinfo->hdr_len; 1715 1716 /* Copy payload */ 1717 p = (u_char *)rb->xfer->recv.payload; 1718 res = rb->xfer->recv.pay_len; 1719 1720 /* special handling for RRESQ */ 1721 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1722 p != NULL && res >= sizeof(u_int32_t)) { 1723 *(u_int32_t *)p = pkt->mode.rresq.data; 1724 rb->xfer->recv.pay_len = sizeof(u_int32_t); 1725 return; 1726 } 1727 1728 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1729 return; 1730 1731 plen = pkt->mode.rresb.len; 1732 1733 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1734 len = MIN(rb->vec->iov_len, plen); 1735 if (res < len) { 1736 kprintf("rcv buffer(%d) is %d bytes short.\n", 1737 rb->xfer->recv.pay_len, len - res); 1738 len = res; 1739 } 1740 bcopy(rb->vec->iov_base, p, len); 1741 p += len; 1742 res -= len; 1743 plen -= len; 1744 if (res == 0 || plen == 0) 1745 break; 1746 } 1747 rb->xfer->recv.pay_len -= res; 1748 1749 } 1750 1751 /* 1752 * Generic packet receving process. 1753 */ 1754 void 1755 fw_rcv(struct fw_rcv_buf *rb) 1756 { 1757 struct fw_pkt *fp, *resfp; 1758 struct fw_bind *bind; 1759 int tcode; 1760 int i, len, oldstate; 1761 #if 0 1762 { 1763 u_int32_t *qld; 1764 int i; 1765 qld = (u_int32_t *)buf; 1766 kprintf("spd %d len:%d\n", spd, len); 1767 for( i = 0 ; i <= len && i < 32; i+= 4){ 1768 kprintf("0x%08x ", ntohl(qld[i/4])); 1769 if((i % 16) == 15) kprintf("\n"); 1770 } 1771 if((i % 16) != 15) kprintf("\n"); 1772 } 1773 #endif 1774 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1775 tcode = fp->mode.common.tcode; 1776 switch (tcode) { 1777 case FWTCODE_WRES: 1778 case FWTCODE_RRESQ: 1779 case FWTCODE_RRESB: 1780 case FWTCODE_LRES: 1781 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1782 fp->mode.hdr.tlrt >> 2); 1783 if(rb->xfer == NULL) { 1784 kprintf("fw_rcv: unknown response " 1785 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1786 tcode_str[tcode], tcode, 1787 fp->mode.hdr.src, 1788 fp->mode.hdr.tlrt >> 2, 1789 fp->mode.hdr.tlrt & 3, 1790 fp->mode.rresq.data); 1791 #if 1 1792 kprintf("try ad-hoc work around!!\n"); 1793 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1794 (fp->mode.hdr.tlrt >> 2)^3); 1795 if (rb->xfer == NULL) { 1796 kprintf("no use...\n"); 1797 goto err; 1798 } 1799 #else 1800 goto err; 1801 #endif 1802 } 1803 fw_rcv_copy(rb); 1804 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1805 rb->xfer->resp = EIO; 1806 else 1807 rb->xfer->resp = 0; 1808 /* make sure the packet is drained in AT queue */ 1809 oldstate = rb->xfer->state; 1810 rb->xfer->state = FWXF_RCVD; 1811 switch (oldstate) { 1812 case FWXF_SENT: 1813 fw_xfer_done(rb->xfer); 1814 break; 1815 case FWXF_START: 1816 #if 0 1817 if (firewire_debug) 1818 kprintf("not sent yet tl=%x\n", rb->xfer->tl); 1819 #endif 1820 break; 1821 default: 1822 kprintf("unexpected state %d\n", rb->xfer->state); 1823 } 1824 return; 1825 case FWTCODE_WREQQ: 1826 case FWTCODE_WREQB: 1827 case FWTCODE_RREQQ: 1828 case FWTCODE_RREQB: 1829 case FWTCODE_LREQ: 1830 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1831 fp->mode.rreqq.dest_lo); 1832 if(bind == NULL){ 1833 kprintf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1834 " src=0x%x data=%x\n", 1835 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1836 tcode_str[tcode], tcode, 1837 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1838 if (rb->fc->status == FWBUSRESET) { 1839 kprintf("fw_rcv: cannot respond(bus reset)!\n"); 1840 goto err; 1841 } 1842 rb->xfer = fw_xfer_alloc(M_FWXFER); 1843 if(rb->xfer == NULL){ 1844 return; 1845 } 1846 rb->xfer->send.spd = rb->spd; 1847 rb->xfer->send.pay_len = 0; 1848 resfp = &rb->xfer->send.hdr; 1849 switch (tcode) { 1850 case FWTCODE_WREQQ: 1851 case FWTCODE_WREQB: 1852 resfp->mode.hdr.tcode = FWTCODE_WRES; 1853 break; 1854 case FWTCODE_RREQQ: 1855 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1856 break; 1857 case FWTCODE_RREQB: 1858 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1859 break; 1860 case FWTCODE_LREQ: 1861 resfp->mode.hdr.tcode = FWTCODE_LRES; 1862 break; 1863 } 1864 resfp->mode.hdr.dst = fp->mode.hdr.src; 1865 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1866 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1867 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1868 resfp->mode.rresb.extcode = 0; 1869 resfp->mode.rresb.len = 0; 1870 /* 1871 rb->xfer->act.hand = fw_asy_callback; 1872 */ 1873 rb->xfer->act.hand = fw_xfer_free; 1874 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1875 fw_xfer_free(rb->xfer); 1876 return; 1877 } 1878 goto err; 1879 } 1880 len = 0; 1881 for (i = 0; i < rb->nvec; i ++) 1882 len += rb->vec[i].iov_len; 1883 switch(bind->act_type){ 1884 case FWACT_XFER: 1885 crit_enter(); 1886 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1887 if (rb->xfer == NULL) { 1888 kprintf("Discard a packet for this bind.\n"); 1889 crit_exit(); 1890 goto err; 1891 } 1892 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1893 crit_exit(); 1894 fw_rcv_copy(rb); 1895 rb->xfer->act.hand(rb->xfer); 1896 return; 1897 break; 1898 case FWACT_CH: 1899 if(rb->fc->ir[bind->sub]->queued >= 1900 rb->fc->ir[bind->sub]->maxq){ 1901 device_printf(rb->fc->bdev, 1902 "Discard a packet %x %d\n", 1903 bind->sub, 1904 rb->fc->ir[bind->sub]->queued); 1905 goto err; 1906 } 1907 crit_enter(); 1908 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1909 if (rb->xfer == NULL) { 1910 kprintf("Discard packet for this bind\n"); 1911 goto err; 1912 } 1913 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1914 crit_exit(); 1915 fw_rcv_copy(rb); 1916 crit_enter(); 1917 rb->fc->ir[bind->sub]->queued++; 1918 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q, 1919 rb->xfer, link); 1920 crit_exit(); 1921 1922 wakeup((caddr_t)rb->fc->ir[bind->sub]); 1923 1924 return; 1925 break; 1926 default: 1927 goto err; 1928 break; 1929 } 1930 break; 1931 #if 0 /* shouldn't happen ?? or for GASP */ 1932 case FWTCODE_STREAM: 1933 { 1934 struct fw_xferq *xferq; 1935 1936 xferq = rb->fc->ir[sub]; 1937 #if 0 1938 kprintf("stream rcv dma %d len %d off %d spd %d\n", 1939 sub, len, off, spd); 1940 #endif 1941 if(xferq->queued >= xferq->maxq) { 1942 kprintf("receive queue is full\n"); 1943 goto err; 1944 } 1945 /* XXX get xfer from xfer queue, we don't need copy for 1946 per packet mode */ 1947 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1948 vec[0].iov_len); 1949 if (rb->xfer == NULL) goto err; 1950 fw_rcv_copy(rb) 1951 crit_enter(); 1952 xferq->queued++; 1953 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1954 crit_exit(); 1955 sc = device_get_softc(rb->fc->bdev); 1956 #if defined(__DragonFly__) || __FreeBSD_version < 500000 1957 if (&xferq->rsel.si_pid != 0) 1958 #else 1959 if (SEL_WAITING(&xferq->rsel)) 1960 #endif 1961 selwakeuppri(&xferq->rsel, FWPRI); 1962 if (xferq->flag & FWXFERQ_WAKEUP) { 1963 xferq->flag &= ~FWXFERQ_WAKEUP; 1964 wakeup((caddr_t)xferq); 1965 } 1966 if (xferq->flag & FWXFERQ_HANDLER) { 1967 xferq->hand(xferq); 1968 } 1969 return; 1970 break; 1971 } 1972 #endif 1973 default: 1974 kprintf("fw_rcv: unknow tcode %d\n", tcode); 1975 break; 1976 } 1977 err: 1978 return; 1979 } 1980 1981 /* 1982 * Post process for Bus Manager election process. 1983 */ 1984 static void 1985 fw_try_bmr_callback(struct fw_xfer *xfer) 1986 { 1987 struct firewire_comm *fc; 1988 int bmr; 1989 1990 if (xfer == NULL) 1991 return; 1992 fc = xfer->fc; 1993 if (xfer->resp != 0) 1994 goto error; 1995 if (xfer->recv.payload == NULL) 1996 goto error; 1997 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 1998 goto error; 1999 2000 bmr = ntohl(xfer->recv.payload[0]); 2001 if (bmr == 0x3f) 2002 bmr = fc->nodeid; 2003 2004 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2005 fw_xfer_free_buf(xfer); 2006 fw_bmr(fc); 2007 return; 2008 2009 error: 2010 device_printf(fc->bdev, "bus manager election failed\n"); 2011 fw_xfer_free_buf(xfer); 2012 } 2013 2014 2015 /* 2016 * To candidate Bus Manager election process. 2017 */ 2018 static void 2019 fw_try_bmr(void *arg) 2020 { 2021 struct fw_xfer *xfer; 2022 struct firewire_comm *fc = (struct firewire_comm *)arg; 2023 struct fw_pkt *fp; 2024 int err = 0; 2025 2026 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2027 if(xfer == NULL){ 2028 return; 2029 } 2030 xfer->send.spd = 0; 2031 fc->status = FWBUSMGRELECT; 2032 2033 fp = &xfer->send.hdr; 2034 fp->mode.lreq.dest_hi = 0xffff; 2035 fp->mode.lreq.tlrt = 0; 2036 fp->mode.lreq.tcode = FWTCODE_LREQ; 2037 fp->mode.lreq.pri = 0; 2038 fp->mode.lreq.src = 0; 2039 fp->mode.lreq.len = 8; 2040 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2041 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2042 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2043 xfer->send.payload[0] = htonl(0x3f); 2044 xfer->send.payload[1] = htonl(fc->nodeid); 2045 xfer->act.hand = fw_try_bmr_callback; 2046 2047 err = fw_asyreq(fc, -1, xfer); 2048 if(err){ 2049 fw_xfer_free_buf(xfer); 2050 return; 2051 } 2052 return; 2053 } 2054 2055 #ifdef FW_VMACCESS 2056 /* 2057 * Software implementation for physical memory block access. 2058 * XXX:Too slow, usef for debug purpose only. 2059 */ 2060 static void 2061 fw_vmaccess(struct fw_xfer *xfer){ 2062 struct fw_pkt *rfp, *sfp = NULL; 2063 u_int32_t *ld = (u_int32_t *)xfer->recv.buf; 2064 2065 kprintf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2066 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2067 kprintf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2068 if(xfer->resp != 0){ 2069 fw_xfer_free( xfer); 2070 return; 2071 } 2072 if(xfer->recv.buf == NULL){ 2073 fw_xfer_free( xfer); 2074 return; 2075 } 2076 rfp = (struct fw_pkt *)xfer->recv.buf; 2077 switch(rfp->mode.hdr.tcode){ 2078 /* XXX need fix for 64bit arch */ 2079 case FWTCODE_WREQB: 2080 xfer->send.buf = kmalloc(12, M_FW, M_WAITOK); 2081 xfer->send.len = 12; 2082 sfp = (struct fw_pkt *)xfer->send.buf; 2083 bcopy(rfp->mode.wreqb.payload, 2084 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2085 sfp->mode.wres.tcode = FWTCODE_WRES; 2086 sfp->mode.wres.rtcode = 0; 2087 break; 2088 case FWTCODE_WREQQ: 2089 xfer->send.buf = kmalloc(12, M_FW, M_WAITOK); 2090 xfer->send.len = 12; 2091 sfp->mode.wres.tcode = FWTCODE_WRES; 2092 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2093 sfp->mode.wres.rtcode = 0; 2094 break; 2095 case FWTCODE_RREQB: 2096 xfer->send.buf = kmalloc(16 + rfp->mode.rreqb.len, M_FW, M_WAITOK); 2097 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2098 sfp = (struct fw_pkt *)xfer->send.buf; 2099 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2100 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2101 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2102 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2103 sfp->mode.rresb.rtcode = 0; 2104 sfp->mode.rresb.extcode = 0; 2105 break; 2106 case FWTCODE_RREQQ: 2107 xfer->send.buf = kmalloc(16, M_FW, M_WAITOK); 2108 xfer->send.len = 16; 2109 sfp = (struct fw_pkt *)xfer->send.buf; 2110 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2111 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2112 sfp->mode.rresb.rtcode = 0; 2113 break; 2114 default: 2115 fw_xfer_free( xfer); 2116 return; 2117 } 2118 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2119 xfer->dst = ntohs(rfp->mode.hdr.src); 2120 xfer->act.hand = fw_xfer_free; 2121 xfer->retry_req = fw_asybusy; 2122 2123 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2124 sfp->mode.hdr.pri = 0; 2125 2126 fw_asyreq(xfer->fc, -1, xfer); 2127 /**/ 2128 return; 2129 } 2130 #endif 2131 2132 /* 2133 * CRC16 check-sum for IEEE1394 register blocks. 2134 */ 2135 u_int16_t 2136 fw_crc16(u_int32_t *ptr, u_int32_t len){ 2137 u_int32_t i, sum, crc = 0; 2138 int shift; 2139 len = (len + 3) & ~3; 2140 for(i = 0 ; i < len ; i+= 4){ 2141 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2142 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2143 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2144 } 2145 crc &= 0xffff; 2146 } 2147 return((u_int16_t) crc); 2148 } 2149 2150 static int 2151 fw_bmr(struct firewire_comm *fc) 2152 { 2153 struct fw_device fwdev; 2154 union fw_self_id *self_id; 2155 int cmstr; 2156 u_int32_t quad; 2157 2158 /* Check to see if the current root node is cycle master capable */ 2159 self_id = &fc->topology_map->self_id[fc->max_node]; 2160 if (fc->max_node > 0) { 2161 /* XXX check cmc bit of businfo block rather than contender */ 2162 if (self_id->p0.link_active && self_id->p0.contender) 2163 cmstr = fc->max_node; 2164 else { 2165 device_printf(fc->bdev, 2166 "root node is not cycle master capable\n"); 2167 /* XXX shall we be the cycle master? */ 2168 cmstr = fc->nodeid; 2169 /* XXX need bus reset */ 2170 } 2171 } else 2172 cmstr = -1; 2173 2174 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2175 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2176 /* We are not the bus manager */ 2177 kprintf("\n"); 2178 return(0); 2179 } 2180 kprintf("(me)\n"); 2181 2182 /* Optimize gapcount */ 2183 if(fc->max_hop <= MAX_GAPHOP ) 2184 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2185 /* If we are the cycle master, nothing to do */ 2186 if (cmstr == fc->nodeid || cmstr == -1) 2187 return 0; 2188 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2189 bzero(&fwdev, sizeof(fwdev)); 2190 fwdev.fc = fc; 2191 fwdev.dst = cmstr; 2192 fwdev.speed = 0; 2193 fwdev.maxrec = 8; /* 512 */ 2194 fwdev.status = FWDEVINIT; 2195 /* Set cmstr bit on the cycle master */ 2196 quad = htonl(1 << 8); 2197 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2198 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2199 2200 return 0; 2201 } 2202 2203 static int 2204 fw_modevent(module_t mode, int type, void *data) 2205 { 2206 int err = 0; 2207 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2208 static eventhandler_tag fwdev_ehtag = NULL; 2209 #endif 2210 2211 switch (type) { 2212 case MOD_LOAD: 2213 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2214 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2215 fwdev_clone, 0, 1000); 2216 #endif 2217 break; 2218 case MOD_UNLOAD: 2219 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2220 if (fwdev_ehtag != NULL) 2221 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2222 #endif 2223 break; 2224 case MOD_SHUTDOWN: 2225 break; 2226 } 2227 return (err); 2228 } 2229 2230 /* 2231 * This causes the firewire identify to be called for any attached fwohci 2232 * device in the system. 2233 */ 2234 DECLARE_DUMMY_MODULE(firewire); 2235 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2236 MODULE_VERSION(firewire, 1); 2237