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 1.21 2008/01/06 16:55:49 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); 590 591 src = &fc->crom_src_buf->src; 592 bzero(src, sizeof(struct crom_src)); 593 594 /* BUS info sample */ 595 src->hdr.info_len = 4; 596 597 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 598 599 src->businfo.irmc = 1; 600 src->businfo.cmc = 1; 601 src->businfo.isc = 1; 602 src->businfo.bmc = 1; 603 src->businfo.pmc = 0; 604 src->businfo.cyc_clk_acc = 100; 605 src->businfo.max_rec = fc->maxrec; 606 src->businfo.max_rom = MAXROM_4; 607 src->businfo.generation = 1; 608 src->businfo.link_spd = fc->speed; 609 610 src->businfo.eui64.hi = fc->eui.hi; 611 src->businfo.eui64.lo = fc->eui.lo; 612 613 STAILQ_INIT(&src->chunk_list); 614 615 fc->crom_src = src; 616 fc->crom_root = &fc->crom_src_buf->root; 617 } 618 619 static void 620 fw_reset_crom(struct firewire_comm *fc) 621 { 622 struct crom_src_buf *buf; 623 struct crom_src *src; 624 struct crom_chunk *root; 625 626 if (fc->crom_src_buf == NULL) 627 fw_init_crom(fc); 628 629 buf = fc->crom_src_buf; 630 src = fc->crom_src; 631 root = fc->crom_root; 632 633 STAILQ_INIT(&src->chunk_list); 634 635 bzero(root, sizeof(struct crom_chunk)); 636 crom_add_chunk(src, NULL, root, 0); 637 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 638 /* private company_id */ 639 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 640 #ifdef __DragonFly__ 641 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 642 crom_add_entry(root, CSRKEY_HW, __DragonFly_version); 643 #else 644 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 645 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 646 #endif 647 crom_add_simple_text(src, root, &buf->hw, hostname); 648 } 649 650 /* 651 * Called after bus reset. 652 */ 653 void 654 fw_busreset(struct firewire_comm *fc) 655 { 656 struct firewire_dev_comm *fdc; 657 struct crom_src *src; 658 device_t *devlistp; 659 void *newrom; 660 int i, devcnt; 661 662 switch(fc->status){ 663 case FWBUSMGRELECT: 664 callout_stop(&fc->bmr_callout); 665 break; 666 default: 667 break; 668 } 669 fc->status = FWBUSRESET; 670 fw_reset_csr(fc); 671 fw_reset_crom(fc); 672 673 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 674 for( i = 0 ; i < devcnt ; i++) 675 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 676 fdc = device_get_softc(devlistp[i]); 677 if (fdc->post_busreset != NULL) 678 fdc->post_busreset(fdc); 679 } 680 kfree(devlistp, M_TEMP); 681 } 682 683 newrom = kmalloc(CROMSIZE, M_FW, M_WAITOK | M_ZERO); 684 src = &fc->crom_src_buf->src; 685 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 686 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 687 /* bump generation and reload */ 688 src->businfo.generation ++; 689 /* generation must be between 0x2 and 0xF */ 690 if (src->businfo.generation < 2) 691 src->businfo.generation ++; 692 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 693 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 694 } 695 kfree(newrom, M_FW); 696 } 697 698 /* Call once after reboot */ 699 void 700 fw_init(struct firewire_comm *fc) 701 { 702 int i; 703 struct csrdir *csrd; 704 #ifdef FW_VMACCESS 705 struct fw_xfer *xfer; 706 struct fw_bind *fwb; 707 #endif 708 709 fc->max_asyretry = FW_MAXASYRTY; 710 711 fc->arq->queued = 0; 712 fc->ars->queued = 0; 713 fc->atq->queued = 0; 714 fc->ats->queued = 0; 715 716 fc->arq->buf = NULL; 717 fc->ars->buf = NULL; 718 fc->atq->buf = NULL; 719 fc->ats->buf = NULL; 720 721 fc->arq->flag = 0; 722 fc->ars->flag = 0; 723 fc->atq->flag = 0; 724 fc->ats->flag = 0; 725 726 STAILQ_INIT(&fc->atq->q); 727 STAILQ_INIT(&fc->ats->q); 728 729 for( i = 0 ; i < fc->nisodma ; i ++ ){ 730 fc->it[i]->queued = 0; 731 fc->ir[i]->queued = 0; 732 733 fc->it[i]->start = NULL; 734 fc->ir[i]->start = NULL; 735 736 fc->it[i]->buf = NULL; 737 fc->ir[i]->buf = NULL; 738 739 fc->it[i]->flag = FWXFERQ_STREAM; 740 fc->ir[i]->flag = FWXFERQ_STREAM; 741 742 STAILQ_INIT(&fc->it[i]->q); 743 STAILQ_INIT(&fc->ir[i]->q); 744 745 STAILQ_INIT(&fc->it[i]->binds); 746 STAILQ_INIT(&fc->ir[i]->binds); 747 } 748 749 fc->arq->maxq = FWMAXQUEUE; 750 fc->ars->maxq = FWMAXQUEUE; 751 fc->atq->maxq = FWMAXQUEUE; 752 fc->ats->maxq = FWMAXQUEUE; 753 754 for( i = 0 ; i < fc->nisodma ; i++){ 755 fc->ir[i]->maxq = FWMAXQUEUE; 756 fc->it[i]->maxq = FWMAXQUEUE; 757 } 758 /* Initialize csr registers */ 759 fc->topology_map = kmalloc(sizeof(struct fw_topology_map), 760 M_FW, M_WAITOK | M_ZERO); 761 fc->speed_map = kmalloc(sizeof(struct fw_speed_map), 762 M_FW, M_WAITOK | M_ZERO); 763 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 764 CSRARC(fc, TOPO_MAP + 4) = 1; 765 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 766 CSRARC(fc, SPED_MAP + 4) = 1; 767 768 STAILQ_INIT(&fc->devices); 769 770 /* Initialize csr ROM work space */ 771 SLIST_INIT(&fc->ongocsr); 772 SLIST_INIT(&fc->csrfree); 773 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 774 csrd = kmalloc(sizeof(struct csrdir), M_FW, M_WAITOK); 775 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 776 } 777 778 /* Initialize Async handlers */ 779 STAILQ_INIT(&fc->binds); 780 for( i = 0 ; i < 0x40 ; i++){ 781 STAILQ_INIT(&fc->tlabels[i]); 782 } 783 784 /* DV depend CSRs see blue book */ 785 #if 0 786 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 787 CSRARC(fc, oPCR) = 0x8000007a; 788 for(i = 4 ; i < 0x7c/4 ; i+=4){ 789 CSRARC(fc, i + oPCR) = 0x8000007a; 790 } 791 792 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 793 CSRARC(fc, iPCR) = 0x803f0000; 794 for(i = 4 ; i < 0x7c/4 ; i+=4){ 795 CSRARC(fc, i + iPCR) = 0x0; 796 } 797 #endif 798 799 fc->crom_src_buf = NULL; 800 801 #ifdef FW_VMACCESS 802 xfer = fw_xfer_alloc(); 803 if(xfer == NULL) return; 804 805 fwb = kmalloc(sizeof (struct fw_bind), M_FW, M_WAITOK); 806 xfer->act.hand = fw_vmaccess; 807 xfer->fc = fc; 808 xfer->sc = NULL; 809 810 fwb->start_hi = 0x2; 811 fwb->start_lo = 0; 812 fwb->addrlen = 0xffffffff; 813 fwb->xfer = xfer; 814 fw_bindadd(fc, fwb); 815 #endif 816 } 817 818 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 819 ((fwb)->end < (addr))?1:0) 820 821 /* 822 * To lookup binded process from IEEE1394 address. 823 */ 824 struct fw_bind * 825 fw_bindlookup(struct firewire_comm *fc, u_int16_t dest_hi, u_int32_t dest_lo) 826 { 827 u_int64_t addr; 828 struct fw_bind *tfw; 829 830 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 831 STAILQ_FOREACH(tfw, &fc->binds, fclist) 832 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0) 833 return(tfw); 834 return(NULL); 835 } 836 837 /* 838 * To bind IEEE1394 address block to process. 839 */ 840 int 841 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 842 { 843 struct fw_bind *tfw, *prev = NULL; 844 845 if (fwb->start > fwb->end) { 846 kprintf("%s: invalid range\n", __func__); 847 return EINVAL; 848 } 849 850 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 851 if (fwb->end < tfw->start) 852 break; 853 prev = tfw; 854 } 855 if (prev == NULL) { 856 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 857 goto out; 858 } 859 if (prev->end < fwb->start) { 860 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 861 goto out; 862 } 863 864 kprintf("%s: bind failed\n", __func__); 865 return (EBUSY); 866 867 out: 868 if (fwb->act_type == FWACT_CH) 869 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 870 return (0); 871 } 872 873 /* 874 * To free IEEE1394 address block. 875 */ 876 int 877 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 878 { 879 #if 0 880 struct fw_xfer *xfer, *next; 881 #endif 882 struct fw_bind *tfw; 883 884 crit_enter(); 885 STAILQ_FOREACH(tfw, &fc->binds, fclist) 886 if (tfw == fwb) { 887 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 888 goto found; 889 } 890 891 kprintf("%s: no such bind\n", __func__); 892 crit_exit(); 893 return (1); 894 found: 895 #if 0 896 /* shall we do this? */ 897 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 898 next = STAILQ_NEXT(xfer, link); 899 fw_xfer_free(xfer); 900 } 901 STAILQ_INIT(&fwb->xferlist); 902 #endif 903 904 crit_exit(); 905 return 0; 906 } 907 908 /* 909 * To free transaction label. 910 */ 911 static void 912 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 913 { 914 struct tlabel *tl; 915 916 crit_enter(); 917 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 918 tl = STAILQ_NEXT(tl, link)){ 919 if(tl->xfer == xfer){ 920 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 921 kfree(tl, M_FW); 922 break; 923 } 924 } 925 crit_exit(); 926 } 927 928 /* 929 * To obtain XFER structure by transaction label. 930 */ 931 static struct fw_xfer * 932 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 933 { 934 struct fw_xfer *xfer; 935 struct tlabel *tl; 936 937 crit_enter(); 938 939 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 940 tl = STAILQ_NEXT(tl, link)){ 941 if(tl->xfer->send.hdr.mode.hdr.dst == node){ 942 xfer = tl->xfer; 943 crit_exit(); 944 if (firewire_debug > 2) 945 kprintf("fw_tl2xfer: found tl=%d\n", tlabel); 946 return(xfer); 947 } 948 } 949 if (firewire_debug > 1) 950 kprintf("fw_tl2xfer: not found tl=%d\n", tlabel); 951 crit_exit(); 952 return(NULL); 953 } 954 955 /* 956 * To allocate IEEE1394 XFER structure. 957 */ 958 struct fw_xfer * 959 fw_xfer_alloc(struct malloc_type *type) 960 { 961 struct fw_xfer *xfer; 962 963 xfer = kmalloc(sizeof(struct fw_xfer), type, M_INTWAIT | M_ZERO); 964 xfer->malloc = type; 965 966 return xfer; 967 } 968 969 struct fw_xfer * 970 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 971 { 972 struct fw_xfer *xfer; 973 974 xfer = fw_xfer_alloc(type); 975 xfer->send.pay_len = send_len; 976 xfer->recv.pay_len = recv_len; 977 if (xfer == NULL) 978 return(NULL); 979 if (send_len > 0) { 980 xfer->send.payload = kmalloc(send_len, type, M_INTWAIT | M_ZERO); 981 if (xfer->send.payload == NULL) { 982 fw_xfer_free(xfer); 983 return(NULL); 984 } 985 } 986 if (recv_len > 0) { 987 xfer->recv.payload = kmalloc(recv_len, type, M_INTWAIT); 988 if (xfer->recv.payload == NULL) { 989 if (xfer->send.payload != NULL) 990 kfree(xfer->send.payload, type); 991 fw_xfer_free(xfer); 992 return(NULL); 993 } 994 } 995 return(xfer); 996 } 997 998 /* 999 * IEEE1394 XFER post process. 1000 */ 1001 void 1002 fw_xfer_done(struct fw_xfer *xfer) 1003 { 1004 if (xfer->act.hand == NULL) { 1005 kprintf("act.hand == NULL\n"); 1006 return; 1007 } 1008 1009 if (xfer->fc == NULL) 1010 panic("fw_xfer_done: why xfer->fc is NULL?"); 1011 1012 xfer->act.hand(xfer); 1013 } 1014 1015 void 1016 fw_xfer_unload(struct fw_xfer* xfer) 1017 { 1018 if(xfer == NULL ) return; 1019 if(xfer->state == FWXF_INQ){ 1020 kprintf("fw_xfer_free FWXF_INQ\n"); 1021 crit_enter(); 1022 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1023 xfer->q->queued --; 1024 crit_exit(); 1025 } 1026 if (xfer->fc != NULL) { 1027 #if 1 1028 if(xfer->state == FWXF_START) 1029 /* 1030 * This could happen if: 1031 * 1. We call fwohci_arcv() before fwohci_txd(). 1032 * 2. firewire_watch() is called. 1033 */ 1034 kprintf("fw_xfer_free FWXF_START\n"); 1035 #endif 1036 fw_tl_free(xfer->fc, xfer); 1037 } 1038 xfer->state = FWXF_INIT; 1039 xfer->resp = 0; 1040 xfer->retry = 0; 1041 } 1042 /* 1043 * To free IEEE1394 XFER structure. 1044 */ 1045 void 1046 fw_xfer_free_buf( struct fw_xfer* xfer) 1047 { 1048 if (xfer == NULL) { 1049 kprintf("%s: xfer == NULL\n", __func__); 1050 return; 1051 } 1052 fw_xfer_unload(xfer); 1053 if(xfer->send.payload != NULL){ 1054 kfree(xfer->send.payload, xfer->malloc); 1055 } 1056 if(xfer->recv.payload != NULL){ 1057 kfree(xfer->recv.payload, xfer->malloc); 1058 } 1059 kfree(xfer, xfer->malloc); 1060 } 1061 1062 void 1063 fw_xfer_free( struct fw_xfer* xfer) 1064 { 1065 if (xfer == NULL) { 1066 kprintf("%s: xfer == NULL\n", __func__); 1067 return; 1068 } 1069 fw_xfer_unload(xfer); 1070 kfree(xfer, xfer->malloc); 1071 } 1072 1073 void 1074 fw_asy_callback_free(struct fw_xfer *xfer) 1075 { 1076 #if 0 1077 kprintf("asyreq done state=%d resp=%d\n", 1078 xfer->state, xfer->resp); 1079 #endif 1080 fw_xfer_free(xfer); 1081 } 1082 1083 /* 1084 * To configure PHY. 1085 */ 1086 static void 1087 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1088 { 1089 struct fw_xfer *xfer; 1090 struct fw_pkt *fp; 1091 1092 fc->status = FWBUSPHYCONF; 1093 1094 xfer = fw_xfer_alloc(M_FWXFER); 1095 if (xfer == NULL) 1096 return; 1097 xfer->fc = fc; 1098 xfer->retry_req = fw_asybusy; 1099 xfer->act.hand = fw_asy_callback_free; 1100 1101 fp = &xfer->send.hdr; 1102 fp->mode.ld[1] = 0; 1103 if (root_node >= 0) 1104 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1105 if (gap_count >= 0) 1106 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1107 fp->mode.ld[2] = ~fp->mode.ld[1]; 1108 /* XXX Dangerous, how to pass PHY packet to device driver */ 1109 fp->mode.common.tcode |= FWTCODE_PHY; 1110 1111 if (firewire_debug) 1112 kprintf("send phy_config root_node=%d gap_count=%d\n", 1113 root_node, gap_count); 1114 fw_asyreq(fc, -1, xfer); 1115 } 1116 1117 #if 0 1118 /* 1119 * Dump self ID. 1120 */ 1121 static void 1122 fw_print_sid(u_int32_t sid) 1123 { 1124 union fw_self_id *s; 1125 s = (union fw_self_id *) &sid; 1126 kprintf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1127 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1128 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1129 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1130 s->p0.power_class, s->p0.port0, s->p0.port1, 1131 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1132 } 1133 #endif 1134 1135 /* 1136 * To receive self ID. 1137 */ 1138 void 1139 fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) 1140 { 1141 u_int32_t *p; 1142 union fw_self_id *self_id; 1143 u_int i, j, node, c_port = 0, i_branch = 0; 1144 1145 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1146 fc->status = FWBUSINIT; 1147 fc->max_node = fc->nodeid & 0x3f; 1148 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1149 fc->status = FWBUSCYMELECT; 1150 fc->topology_map->crc_len = 2; 1151 fc->topology_map->generation ++; 1152 fc->topology_map->self_id_count = 0; 1153 fc->topology_map->node_count = 0; 1154 fc->speed_map->generation ++; 1155 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1156 self_id = &fc->topology_map->self_id[0]; 1157 for(i = 0; i < fc->sid_cnt; i ++){ 1158 if (sid[1] != ~sid[0]) { 1159 kprintf("fw_sidrcv: invalid self-id packet\n"); 1160 sid += 2; 1161 continue; 1162 } 1163 *self_id = *((union fw_self_id *)sid); 1164 fc->topology_map->crc_len++; 1165 if(self_id->p0.sequel == 0){ 1166 fc->topology_map->node_count ++; 1167 c_port = 0; 1168 #if 0 1169 fw_print_sid(sid[0]); 1170 #endif 1171 node = self_id->p0.phy_id; 1172 if(fc->max_node < node){ 1173 fc->max_node = self_id->p0.phy_id; 1174 } 1175 /* XXX I'm not sure this is the right speed_map */ 1176 fc->speed_map->speed[node][node] 1177 = self_id->p0.phy_speed; 1178 for (j = 0; j < node; j ++) { 1179 fc->speed_map->speed[j][node] 1180 = fc->speed_map->speed[node][j] 1181 = min(fc->speed_map->speed[j][j], 1182 self_id->p0.phy_speed); 1183 } 1184 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1185 (self_id->p0.link_active && self_id->p0.contender)) { 1186 fc->irm = self_id->p0.phy_id; 1187 } 1188 if(self_id->p0.port0 >= 0x2){ 1189 c_port++; 1190 } 1191 if(self_id->p0.port1 >= 0x2){ 1192 c_port++; 1193 } 1194 if(self_id->p0.port2 >= 0x2){ 1195 c_port++; 1196 } 1197 } 1198 if(c_port > 2){ 1199 i_branch += (c_port - 2); 1200 } 1201 sid += 2; 1202 self_id++; 1203 fc->topology_map->self_id_count ++; 1204 } 1205 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1206 /* CRC */ 1207 fc->topology_map->crc = fw_crc16( 1208 (u_int32_t *)&fc->topology_map->generation, 1209 fc->topology_map->crc_len * 4); 1210 fc->speed_map->crc = fw_crc16( 1211 (u_int32_t *)&fc->speed_map->generation, 1212 fc->speed_map->crc_len * 4); 1213 /* byteswap and copy to CSR */ 1214 p = (u_int32_t *)fc->topology_map; 1215 for (i = 0; i <= fc->topology_map->crc_len; i++) 1216 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1217 p = (u_int32_t *)fc->speed_map; 1218 CSRARC(fc, SPED_MAP) = htonl(*p++); 1219 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1220 /* don't byte-swap u_int8_t array */ 1221 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1222 1223 fc->max_hop = fc->max_node - i_branch; 1224 kprintf(", maxhop <= %d", fc->max_hop); 1225 1226 if(fc->irm == -1 ){ 1227 kprintf(", Not found IRM capable node"); 1228 }else{ 1229 kprintf(", cable IRM = %d", fc->irm); 1230 if (fc->irm == fc->nodeid) 1231 kprintf(" (me)"); 1232 } 1233 kprintf("\n"); 1234 1235 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1236 if (fc->irm == fc->nodeid) { 1237 fc->status = FWBUSMGRDONE; 1238 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1239 fw_bmr(fc); 1240 } else { 1241 fc->status = FWBUSMGRELECT; 1242 callout_reset(&fc->bmr_callout, hz/8, 1243 (void *)fw_try_bmr, (void *)fc); 1244 } 1245 } else 1246 fc->status = FWBUSMGRDONE; 1247 1248 callout_reset(&fc->busprobe_callout, hz/4, 1249 (void *)fw_bus_probe, (void *)fc); 1250 } 1251 1252 /* 1253 * To probe devices on the IEEE1394 bus. 1254 */ 1255 static void 1256 fw_bus_probe(struct firewire_comm *fc) 1257 { 1258 struct fw_device *fwdev; 1259 1260 crit_enter(); 1261 fc->status = FWBUSEXPLORE; 1262 fc->retry_count = 0; 1263 1264 /* Invalidate all devices, just after bus reset. */ 1265 STAILQ_FOREACH(fwdev, &fc->devices, link) 1266 if (fwdev->status != FWDEVINVAL) { 1267 fwdev->status = FWDEVINVAL; 1268 fwdev->rcnt = 0; 1269 } 1270 1271 fc->ongonode = 0; 1272 fc->ongoaddr = CSRROMOFF; 1273 fc->ongodev = NULL; 1274 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1275 fw_bus_explore(fc); 1276 crit_exit(); 1277 } 1278 1279 /* 1280 * To collect device informations on the IEEE1394 bus. 1281 */ 1282 static void 1283 fw_bus_explore(struct firewire_comm *fc ) 1284 { 1285 int err = 0; 1286 struct fw_device *fwdev, *pfwdev, *tfwdev; 1287 u_int32_t addr; 1288 struct fw_xfer *xfer; 1289 struct fw_pkt *fp; 1290 1291 if(fc->status != FWBUSEXPLORE) 1292 return; 1293 1294 loop: 1295 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1296 1297 if(fc->ongonode > fc->max_node) goto done; 1298 if(fc->ongonode >= 0x3f) goto done; 1299 1300 /* check link */ 1301 /* XXX we need to check phy_id first */ 1302 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1303 if (firewire_debug) 1304 kprintf("node%d: link down\n", fc->ongonode); 1305 fc->ongonode++; 1306 goto loop; 1307 } 1308 1309 if(fc->ongoaddr <= CSRROMOFF && 1310 fc->ongoeui.hi == 0xffffffff && 1311 fc->ongoeui.lo == 0xffffffff ){ 1312 fc->ongoaddr = CSRROMOFF; 1313 addr = 0xf0000000 | fc->ongoaddr; 1314 }else if(fc->ongoeui.hi == 0xffffffff ){ 1315 fc->ongoaddr = CSRROMOFF + 0xc; 1316 addr = 0xf0000000 | fc->ongoaddr; 1317 }else if(fc->ongoeui.lo == 0xffffffff ){ 1318 fc->ongoaddr = CSRROMOFF + 0x10; 1319 addr = 0xf0000000 | fc->ongoaddr; 1320 }else if(fc->ongodev == NULL){ 1321 STAILQ_FOREACH(fwdev, &fc->devices, link) 1322 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1323 break; 1324 if(fwdev != NULL){ 1325 fwdev->dst = fc->ongonode; 1326 fwdev->status = FWDEVINIT; 1327 fc->ongodev = fwdev; 1328 fc->ongoaddr = CSRROMOFF; 1329 addr = 0xf0000000 | fc->ongoaddr; 1330 goto dorequest; 1331 } 1332 fwdev = kmalloc(sizeof(struct fw_device), M_FW, 1333 M_WAITOK | M_ZERO); 1334 fwdev->fc = fc; 1335 fwdev->rommax = 0; 1336 fwdev->dst = fc->ongonode; 1337 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1338 fwdev->status = FWDEVINIT; 1339 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1340 1341 pfwdev = NULL; 1342 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1343 if (tfwdev->eui.hi > fwdev->eui.hi || 1344 (tfwdev->eui.hi == fwdev->eui.hi && 1345 tfwdev->eui.lo > fwdev->eui.lo)) 1346 break; 1347 pfwdev = tfwdev; 1348 } 1349 if (pfwdev == NULL) 1350 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1351 else 1352 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1353 1354 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1355 linkspeed[fwdev->speed], 1356 fc->ongoeui.hi, fc->ongoeui.lo); 1357 1358 fc->ongodev = fwdev; 1359 fc->ongoaddr = CSRROMOFF; 1360 addr = 0xf0000000 | fc->ongoaddr; 1361 }else{ 1362 addr = 0xf0000000 | fc->ongoaddr; 1363 } 1364 dorequest: 1365 #if 0 1366 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1367 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1368 fw_bus_explore_callback); 1369 if(xfer == NULL) goto done; 1370 #else 1371 xfer = fw_xfer_alloc(M_FWXFER); 1372 if(xfer == NULL){ 1373 goto done; 1374 } 1375 xfer->send.spd = 0; 1376 fp = &xfer->send.hdr; 1377 fp->mode.rreqq.dest_hi = 0xffff; 1378 fp->mode.rreqq.tlrt = 0; 1379 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1380 fp->mode.rreqq.pri = 0; 1381 fp->mode.rreqq.src = 0; 1382 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode; 1383 fp->mode.rreqq.dest_lo = addr; 1384 xfer->act.hand = fw_bus_explore_callback; 1385 1386 if (firewire_debug) 1387 kprintf("node%d: explore addr=0x%x\n", 1388 fc->ongonode, fc->ongoaddr); 1389 err = fw_asyreq(fc, -1, xfer); 1390 if(err){ 1391 fw_xfer_free( xfer); 1392 return; 1393 } 1394 #endif 1395 return; 1396 done: 1397 /* fw_attach_devs */ 1398 fc->status = FWBUSEXPDONE; 1399 if (firewire_debug) 1400 kprintf("bus_explore done\n"); 1401 fw_attach_dev(fc); 1402 return; 1403 1404 } 1405 1406 /* Portable Async. request read quad */ 1407 struct fw_xfer * 1408 asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1409 u_int32_t addr_hi, u_int32_t addr_lo, 1410 void (*hand) (struct fw_xfer*)) 1411 { 1412 struct fw_xfer *xfer; 1413 struct fw_pkt *fp; 1414 int err; 1415 1416 xfer = fw_xfer_alloc(M_FWXFER); 1417 if (xfer == NULL) 1418 return NULL; 1419 1420 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */ 1421 fp = &xfer->send.hdr; 1422 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1423 if(tl & FWP_TL_VALID){ 1424 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1425 }else{ 1426 fp->mode.rreqq.tlrt = 0; 1427 } 1428 fp->mode.rreqq.tlrt |= rt & 0x3; 1429 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1430 fp->mode.rreqq.pri = 0; 1431 fp->mode.rreqq.src = 0; 1432 fp->mode.rreqq.dst = addr_hi >> 16; 1433 fp->mode.rreqq.dest_lo = addr_lo; 1434 xfer->act.hand = hand; 1435 1436 err = fw_asyreq(fc, -1, xfer); 1437 if(err){ 1438 fw_xfer_free( xfer); 1439 return NULL; 1440 } 1441 return xfer; 1442 } 1443 1444 /* 1445 * Callback for the IEEE1394 bus information collection. 1446 */ 1447 static void 1448 fw_bus_explore_callback(struct fw_xfer *xfer) 1449 { 1450 struct firewire_comm *fc; 1451 struct fw_pkt *sfp,*rfp; 1452 struct csrhdr *chdr; 1453 struct csrdir *csrd; 1454 struct csrreg *csrreg; 1455 u_int32_t offset; 1456 1457 1458 if(xfer == NULL) { 1459 kprintf("xfer == NULL\n"); 1460 return; 1461 } 1462 fc = xfer->fc; 1463 1464 if (firewire_debug) 1465 kprintf("node%d: callback addr=0x%x\n", 1466 fc->ongonode, fc->ongoaddr); 1467 1468 if(xfer->resp != 0){ 1469 kprintf("node%d: resp=%d addr=0x%x\n", 1470 fc->ongonode, xfer->resp, fc->ongoaddr); 1471 goto errnode; 1472 } 1473 1474 sfp = &xfer->send.hdr; 1475 rfp = &xfer->recv.hdr; 1476 #if 0 1477 { 1478 u_int32_t *qld; 1479 int i; 1480 qld = (u_int32_t *)xfer->recv.buf; 1481 kprintf("len:%d\n", xfer->recv.len); 1482 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1483 kprintf("0x%08x ", rfp->mode.ld[i/4]); 1484 if((i % 16) == 15) kprintf("\n"); 1485 } 1486 if((i % 16) != 15) kprintf("\n"); 1487 } 1488 #endif 1489 if(fc->ongodev == NULL){ 1490 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1491 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1492 chdr = (struct csrhdr *)(void *)(&rfp->mode.rresq.data); 1493 /* If CSR is minimal confinguration, more investgation is not needed. */ 1494 if(chdr->info_len == 1){ 1495 if (firewire_debug) 1496 kprintf("node%d: minimal config\n", 1497 fc->ongonode); 1498 goto nextnode; 1499 }else{ 1500 fc->ongoaddr = CSRROMOFF + 0xc; 1501 } 1502 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1503 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1504 fc->ongoaddr = CSRROMOFF + 0x10; 1505 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1506 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1507 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1508 if (firewire_debug) 1509 kprintf("node%d: eui64 is zero.\n", 1510 fc->ongonode); 1511 goto nextnode; 1512 } 1513 fc->ongoaddr = CSRROMOFF; 1514 } 1515 }else{ 1516 if (fc->ongoaddr == CSRROMOFF && 1517 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1518 fc->ongodev->status = FWDEVATTACHED; 1519 goto nextnode; 1520 } 1521 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1522 if(fc->ongoaddr > fc->ongodev->rommax){ 1523 fc->ongodev->rommax = fc->ongoaddr; 1524 } 1525 csrd = SLIST_FIRST(&fc->ongocsr); 1526 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1527 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1528 offset = CSRROMOFF; 1529 }else{ 1530 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1531 offset = csrd->off; 1532 } 1533 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1534 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1535 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1536 csrd = SLIST_FIRST(&fc->csrfree); 1537 if(csrd == NULL){ 1538 goto nextnode; 1539 }else{ 1540 csrd->ongoaddr = fc->ongoaddr; 1541 fc->ongoaddr += csrreg->val * 4; 1542 csrd->off = fc->ongoaddr; 1543 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1544 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1545 goto nextaddr; 1546 } 1547 } 1548 } 1549 fc->ongoaddr += 4; 1550 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1551 (fc->ongodev->rommax < 0x414)){ 1552 if(fc->ongodev->rommax <= 0x414){ 1553 csrd = SLIST_FIRST(&fc->csrfree); 1554 if(csrd == NULL) goto nextnode; 1555 csrd->off = fc->ongoaddr; 1556 csrd->ongoaddr = fc->ongoaddr; 1557 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1558 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1559 } 1560 goto nextaddr; 1561 } 1562 1563 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1564 if(csrd == NULL){ 1565 goto nextnode; 1566 }; 1567 fc->ongoaddr = csrd->ongoaddr + 4; 1568 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1569 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1570 csrd = SLIST_FIRST(&fc->ongocsr); 1571 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1572 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1573 offset = CSRROMOFF; 1574 }else{ 1575 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1576 offset = csrd->off; 1577 } 1578 } 1579 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1580 goto nextnode; 1581 } 1582 } 1583 nextaddr: 1584 fw_xfer_free( xfer); 1585 fw_bus_explore(fc); 1586 return; 1587 errnode: 1588 fc->retry_count++; 1589 if (fc->ongodev != NULL) 1590 fc->ongodev->status = FWDEVINVAL; 1591 nextnode: 1592 fw_xfer_free( xfer); 1593 fc->ongonode++; 1594 /* housekeeping work space */ 1595 fc->ongoaddr = CSRROMOFF; 1596 fc->ongodev = NULL; 1597 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1598 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1599 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1600 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1601 } 1602 fw_bus_explore(fc); 1603 return; 1604 } 1605 1606 /* 1607 * To attach sub-devices layer onto IEEE1394 bus. 1608 */ 1609 static void 1610 fw_attach_dev(struct firewire_comm *fc) 1611 { 1612 struct fw_device *fwdev, *next; 1613 int i, err; 1614 device_t *devlistp; 1615 int devcnt; 1616 struct firewire_dev_comm *fdc; 1617 1618 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1619 next = STAILQ_NEXT(fwdev, link); 1620 if (fwdev->status == FWDEVINIT) { 1621 fwdev->status = FWDEVATTACHED; 1622 } else if (fwdev->status == FWDEVINVAL) { 1623 fwdev->rcnt ++; 1624 if (fwdev->rcnt > hold_count) { 1625 /* 1626 * Remove devices which have not been seen 1627 * for a while. 1628 */ 1629 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1630 link); 1631 kfree(fwdev, M_FW); 1632 } 1633 } 1634 } 1635 1636 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1637 if( err != 0 ) 1638 return; 1639 for( i = 0 ; i < devcnt ; i++){ 1640 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1641 fdc = device_get_softc(devlistp[i]); 1642 if (fdc->post_explore != NULL) 1643 fdc->post_explore(fdc); 1644 } 1645 } 1646 kfree(devlistp, M_TEMP); 1647 1648 if (fc->retry_count > 0) { 1649 kprintf("probe failed for %d node\n", fc->retry_count); 1650 #if 0 1651 callout_reset(&fc->retry_probe_callout, hz*2, 1652 (void *)fc->ibr, (void *)fc); 1653 #endif 1654 } 1655 return; 1656 } 1657 1658 /* 1659 * To allocate uniq transaction label. 1660 */ 1661 static int 1662 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1663 { 1664 u_int i; 1665 struct tlabel *tl, *tmptl; 1666 static u_int32_t label = 0; 1667 1668 crit_enter(); 1669 for( i = 0 ; i < 0x40 ; i ++){ 1670 label = (label + 1) & 0x3f; 1671 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1672 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1673 if (tmptl->xfer->send.hdr.mode.hdr.dst == 1674 xfer->send.hdr.mode.hdr.dst) 1675 break; 1676 } 1677 if(tmptl == NULL) { 1678 tl = kmalloc(sizeof(struct tlabel), M_FW, M_WAITOK); 1679 tl->xfer = xfer; 1680 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1681 crit_exit(); 1682 if (firewire_debug > 1) 1683 kprintf("fw_get_tlabel: dst=%d tl=%d\n", 1684 xfer->send.hdr.mode.hdr.dst, label); 1685 return(label); 1686 } 1687 } 1688 crit_exit(); 1689 1690 kprintf("fw_get_tlabel: no free tlabel\n"); 1691 return(-1); 1692 } 1693 1694 static void 1695 fw_rcv_copy(struct fw_rcv_buf *rb) 1696 { 1697 struct fw_pkt *pkt; 1698 u_char *p; 1699 struct tcode_info *tinfo; 1700 u_int res, i, len, plen; 1701 1702 rb->xfer->recv.spd -= rb->spd; 1703 1704 pkt = (struct fw_pkt *)rb->vec->iov_base; 1705 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1706 1707 /* Copy header */ 1708 p = (u_char *)&rb->xfer->recv.hdr; 1709 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1710 rb->vec->iov_base = (uint8_t *)rb->vec->iov_base + tinfo->hdr_len; 1711 rb->vec->iov_len -= tinfo->hdr_len; 1712 1713 /* Copy payload */ 1714 p = (u_char *)rb->xfer->recv.payload; 1715 res = rb->xfer->recv.pay_len; 1716 1717 /* special handling for RRESQ */ 1718 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1719 p != NULL && res >= sizeof(u_int32_t)) { 1720 *(u_int32_t *)p = pkt->mode.rresq.data; 1721 rb->xfer->recv.pay_len = sizeof(u_int32_t); 1722 return; 1723 } 1724 1725 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1726 return; 1727 1728 plen = pkt->mode.rresb.len; 1729 1730 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1731 len = MIN(rb->vec->iov_len, plen); 1732 if (res < len) { 1733 kprintf("rcv buffer(%d) is %d bytes short.\n", 1734 rb->xfer->recv.pay_len, len - res); 1735 len = res; 1736 } 1737 bcopy(rb->vec->iov_base, p, len); 1738 p += len; 1739 res -= len; 1740 plen -= len; 1741 if (res == 0 || plen == 0) 1742 break; 1743 } 1744 rb->xfer->recv.pay_len -= res; 1745 1746 } 1747 1748 /* 1749 * Generic packet receving process. 1750 */ 1751 void 1752 fw_rcv(struct fw_rcv_buf *rb) 1753 { 1754 struct fw_pkt *fp, *resfp; 1755 struct fw_bind *bind; 1756 int tcode; 1757 int i, len, oldstate; 1758 #if 0 1759 { 1760 u_int32_t *qld; 1761 int i; 1762 qld = (u_int32_t *)buf; 1763 kprintf("spd %d len:%d\n", spd, len); 1764 for( i = 0 ; i <= len && i < 32; i+= 4){ 1765 kprintf("0x%08x ", ntohl(qld[i/4])); 1766 if((i % 16) == 15) kprintf("\n"); 1767 } 1768 if((i % 16) != 15) kprintf("\n"); 1769 } 1770 #endif 1771 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1772 tcode = fp->mode.common.tcode; 1773 switch (tcode) { 1774 case FWTCODE_WRES: 1775 case FWTCODE_RRESQ: 1776 case FWTCODE_RRESB: 1777 case FWTCODE_LRES: 1778 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1779 fp->mode.hdr.tlrt >> 2); 1780 if(rb->xfer == NULL) { 1781 kprintf("fw_rcv: unknown response " 1782 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1783 tcode_str[tcode], tcode, 1784 fp->mode.hdr.src, 1785 fp->mode.hdr.tlrt >> 2, 1786 fp->mode.hdr.tlrt & 3, 1787 fp->mode.rresq.data); 1788 #if 1 1789 kprintf("try ad-hoc work around!!\n"); 1790 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1791 (fp->mode.hdr.tlrt >> 2)^3); 1792 if (rb->xfer == NULL) { 1793 kprintf("no use...\n"); 1794 goto err; 1795 } 1796 #else 1797 goto err; 1798 #endif 1799 } 1800 fw_rcv_copy(rb); 1801 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1802 rb->xfer->resp = EIO; 1803 else 1804 rb->xfer->resp = 0; 1805 /* make sure the packet is drained in AT queue */ 1806 oldstate = rb->xfer->state; 1807 rb->xfer->state = FWXF_RCVD; 1808 switch (oldstate) { 1809 case FWXF_SENT: 1810 fw_xfer_done(rb->xfer); 1811 break; 1812 case FWXF_START: 1813 #if 0 1814 if (firewire_debug) 1815 kprintf("not sent yet tl=%x\n", rb->xfer->tl); 1816 #endif 1817 break; 1818 default: 1819 kprintf("unexpected state %d\n", rb->xfer->state); 1820 } 1821 return; 1822 case FWTCODE_WREQQ: 1823 case FWTCODE_WREQB: 1824 case FWTCODE_RREQQ: 1825 case FWTCODE_RREQB: 1826 case FWTCODE_LREQ: 1827 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1828 fp->mode.rreqq.dest_lo); 1829 if(bind == NULL){ 1830 kprintf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1831 " src=0x%x data=%x\n", 1832 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1833 tcode_str[tcode], tcode, 1834 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1835 if (rb->fc->status == FWBUSRESET) { 1836 kprintf("fw_rcv: cannot respond(bus reset)!\n"); 1837 goto err; 1838 } 1839 rb->xfer = fw_xfer_alloc(M_FWXFER); 1840 if(rb->xfer == NULL){ 1841 return; 1842 } 1843 rb->xfer->send.spd = rb->spd; 1844 rb->xfer->send.pay_len = 0; 1845 resfp = &rb->xfer->send.hdr; 1846 switch (tcode) { 1847 case FWTCODE_WREQQ: 1848 case FWTCODE_WREQB: 1849 resfp->mode.hdr.tcode = FWTCODE_WRES; 1850 break; 1851 case FWTCODE_RREQQ: 1852 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1853 break; 1854 case FWTCODE_RREQB: 1855 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1856 break; 1857 case FWTCODE_LREQ: 1858 resfp->mode.hdr.tcode = FWTCODE_LRES; 1859 break; 1860 } 1861 resfp->mode.hdr.dst = fp->mode.hdr.src; 1862 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1863 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1864 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1865 resfp->mode.rresb.extcode = 0; 1866 resfp->mode.rresb.len = 0; 1867 /* 1868 rb->xfer->act.hand = fw_asy_callback; 1869 */ 1870 rb->xfer->act.hand = fw_xfer_free; 1871 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1872 fw_xfer_free(rb->xfer); 1873 return; 1874 } 1875 goto err; 1876 } 1877 len = 0; 1878 for (i = 0; i < rb->nvec; i ++) 1879 len += rb->vec[i].iov_len; 1880 switch(bind->act_type){ 1881 case FWACT_XFER: 1882 crit_enter(); 1883 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1884 if (rb->xfer == NULL) { 1885 kprintf("Discard a packet for this bind.\n"); 1886 crit_exit(); 1887 goto err; 1888 } 1889 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1890 crit_exit(); 1891 fw_rcv_copy(rb); 1892 rb->xfer->act.hand(rb->xfer); 1893 return; 1894 break; 1895 case FWACT_CH: 1896 if(rb->fc->ir[bind->sub]->queued >= 1897 rb->fc->ir[bind->sub]->maxq){ 1898 device_printf(rb->fc->bdev, 1899 "Discard a packet %x %d\n", 1900 bind->sub, 1901 rb->fc->ir[bind->sub]->queued); 1902 goto err; 1903 } 1904 crit_enter(); 1905 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1906 if (rb->xfer == NULL) { 1907 kprintf("Discard packet for this bind\n"); 1908 goto err; 1909 } 1910 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1911 crit_exit(); 1912 fw_rcv_copy(rb); 1913 crit_enter(); 1914 rb->fc->ir[bind->sub]->queued++; 1915 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q, 1916 rb->xfer, link); 1917 crit_exit(); 1918 1919 wakeup((caddr_t)rb->fc->ir[bind->sub]); 1920 1921 return; 1922 break; 1923 default: 1924 goto err; 1925 break; 1926 } 1927 break; 1928 #if 0 /* shouldn't happen ?? or for GASP */ 1929 case FWTCODE_STREAM: 1930 { 1931 struct fw_xferq *xferq; 1932 1933 xferq = rb->fc->ir[sub]; 1934 #if 0 1935 kprintf("stream rcv dma %d len %d off %d spd %d\n", 1936 sub, len, off, spd); 1937 #endif 1938 if(xferq->queued >= xferq->maxq) { 1939 kprintf("receive queue is full\n"); 1940 goto err; 1941 } 1942 /* XXX get xfer from xfer queue, we don't need copy for 1943 per packet mode */ 1944 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1945 vec[0].iov_len); 1946 if (rb->xfer == NULL) goto err; 1947 fw_rcv_copy(rb) 1948 crit_enter(); 1949 xferq->queued++; 1950 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1951 crit_exit(); 1952 sc = device_get_softc(rb->fc->bdev); 1953 KNOTE(&xferq->rkq.ki_note, 0); 1954 if (xferq->flag & FWXFERQ_WAKEUP) { 1955 xferq->flag &= ~FWXFERQ_WAKEUP; 1956 wakeup((caddr_t)xferq); 1957 } 1958 if (xferq->flag & FWXFERQ_HANDLER) { 1959 xferq->hand(xferq); 1960 } 1961 return; 1962 break; 1963 } 1964 #endif 1965 default: 1966 kprintf("fw_rcv: unknow tcode %d\n", tcode); 1967 break; 1968 } 1969 err: 1970 return; 1971 } 1972 1973 /* 1974 * Post process for Bus Manager election process. 1975 */ 1976 static void 1977 fw_try_bmr_callback(struct fw_xfer *xfer) 1978 { 1979 struct firewire_comm *fc; 1980 int bmr; 1981 1982 if (xfer == NULL) 1983 return; 1984 fc = xfer->fc; 1985 if (xfer->resp != 0) 1986 goto error; 1987 if (xfer->recv.payload == NULL) 1988 goto error; 1989 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 1990 goto error; 1991 1992 bmr = ntohl(xfer->recv.payload[0]); 1993 if (bmr == 0x3f) 1994 bmr = fc->nodeid; 1995 1996 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 1997 fw_xfer_free_buf(xfer); 1998 fw_bmr(fc); 1999 return; 2000 2001 error: 2002 device_printf(fc->bdev, "bus manager election failed\n"); 2003 fw_xfer_free_buf(xfer); 2004 } 2005 2006 2007 /* 2008 * To candidate Bus Manager election process. 2009 */ 2010 static void 2011 fw_try_bmr(void *arg) 2012 { 2013 struct fw_xfer *xfer; 2014 struct firewire_comm *fc = (struct firewire_comm *)arg; 2015 struct fw_pkt *fp; 2016 int err = 0; 2017 2018 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2019 if(xfer == NULL){ 2020 return; 2021 } 2022 xfer->send.spd = 0; 2023 fc->status = FWBUSMGRELECT; 2024 2025 fp = &xfer->send.hdr; 2026 fp->mode.lreq.dest_hi = 0xffff; 2027 fp->mode.lreq.tlrt = 0; 2028 fp->mode.lreq.tcode = FWTCODE_LREQ; 2029 fp->mode.lreq.pri = 0; 2030 fp->mode.lreq.src = 0; 2031 fp->mode.lreq.len = 8; 2032 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2033 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2034 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2035 xfer->send.payload[0] = htonl(0x3f); 2036 xfer->send.payload[1] = htonl(fc->nodeid); 2037 xfer->act.hand = fw_try_bmr_callback; 2038 2039 err = fw_asyreq(fc, -1, xfer); 2040 if(err){ 2041 fw_xfer_free_buf(xfer); 2042 return; 2043 } 2044 return; 2045 } 2046 2047 #ifdef FW_VMACCESS 2048 /* 2049 * Software implementation for physical memory block access. 2050 * XXX:Too slow, usef for debug purpose only. 2051 */ 2052 static void 2053 fw_vmaccess(struct fw_xfer *xfer){ 2054 struct fw_pkt *rfp, *sfp = NULL; 2055 u_int32_t *ld = (u_int32_t *)xfer->recv.buf; 2056 2057 kprintf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2058 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2059 kprintf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2060 if(xfer->resp != 0){ 2061 fw_xfer_free( xfer); 2062 return; 2063 } 2064 if(xfer->recv.buf == NULL){ 2065 fw_xfer_free( xfer); 2066 return; 2067 } 2068 rfp = (struct fw_pkt *)xfer->recv.buf; 2069 switch(rfp->mode.hdr.tcode){ 2070 /* XXX need fix for 64bit arch */ 2071 case FWTCODE_WREQB: 2072 xfer->send.buf = kmalloc(12, M_FW, M_WAITOK); 2073 xfer->send.len = 12; 2074 sfp = (struct fw_pkt *)xfer->send.buf; 2075 bcopy(rfp->mode.wreqb.payload, 2076 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2077 sfp->mode.wres.tcode = FWTCODE_WRES; 2078 sfp->mode.wres.rtcode = 0; 2079 break; 2080 case FWTCODE_WREQQ: 2081 xfer->send.buf = kmalloc(12, M_FW, M_WAITOK); 2082 xfer->send.len = 12; 2083 sfp->mode.wres.tcode = FWTCODE_WRES; 2084 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2085 sfp->mode.wres.rtcode = 0; 2086 break; 2087 case FWTCODE_RREQB: 2088 xfer->send.buf = kmalloc(16 + rfp->mode.rreqb.len, M_FW, M_WAITOK); 2089 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2090 sfp = (struct fw_pkt *)xfer->send.buf; 2091 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2092 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2093 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2094 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2095 sfp->mode.rresb.rtcode = 0; 2096 sfp->mode.rresb.extcode = 0; 2097 break; 2098 case FWTCODE_RREQQ: 2099 xfer->send.buf = kmalloc(16, M_FW, M_WAITOK); 2100 xfer->send.len = 16; 2101 sfp = (struct fw_pkt *)xfer->send.buf; 2102 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2103 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2104 sfp->mode.rresb.rtcode = 0; 2105 break; 2106 default: 2107 fw_xfer_free( xfer); 2108 return; 2109 } 2110 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2111 xfer->dst = ntohs(rfp->mode.hdr.src); 2112 xfer->act.hand = fw_xfer_free; 2113 xfer->retry_req = fw_asybusy; 2114 2115 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2116 sfp->mode.hdr.pri = 0; 2117 2118 fw_asyreq(xfer->fc, -1, xfer); 2119 /**/ 2120 return; 2121 } 2122 #endif 2123 2124 /* 2125 * CRC16 check-sum for IEEE1394 register blocks. 2126 */ 2127 u_int16_t 2128 fw_crc16(u_int32_t *ptr, u_int32_t len){ 2129 u_int32_t i, sum, crc = 0; 2130 int shift; 2131 len = (len + 3) & ~3; 2132 for(i = 0 ; i < len ; i+= 4){ 2133 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2134 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2135 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2136 } 2137 crc &= 0xffff; 2138 } 2139 return((u_int16_t) crc); 2140 } 2141 2142 static int 2143 fw_bmr(struct firewire_comm *fc) 2144 { 2145 struct fw_device fwdev; 2146 union fw_self_id *self_id; 2147 int cmstr; 2148 u_int32_t quad; 2149 2150 /* Check to see if the current root node is cycle master capable */ 2151 self_id = &fc->topology_map->self_id[fc->max_node]; 2152 if (fc->max_node > 0) { 2153 /* XXX check cmc bit of businfo block rather than contender */ 2154 if (self_id->p0.link_active && self_id->p0.contender) 2155 cmstr = fc->max_node; 2156 else { 2157 device_printf(fc->bdev, 2158 "root node is not cycle master capable\n"); 2159 /* XXX shall we be the cycle master? */ 2160 cmstr = fc->nodeid; 2161 /* XXX need bus reset */ 2162 } 2163 } else 2164 cmstr = -1; 2165 2166 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2167 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2168 /* We are not the bus manager */ 2169 kprintf("\n"); 2170 return(0); 2171 } 2172 kprintf("(me)\n"); 2173 2174 /* Optimize gapcount */ 2175 if(fc->max_hop <= MAX_GAPHOP ) 2176 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2177 /* If we are the cycle master, nothing to do */ 2178 if (cmstr == fc->nodeid || cmstr == -1) 2179 return 0; 2180 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2181 bzero(&fwdev, sizeof(fwdev)); 2182 fwdev.fc = fc; 2183 fwdev.dst = cmstr; 2184 fwdev.speed = 0; 2185 fwdev.maxrec = 8; /* 512 */ 2186 fwdev.status = FWDEVINIT; 2187 /* Set cmstr bit on the cycle master */ 2188 quad = htonl(1 << 8); 2189 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2190 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2191 2192 return 0; 2193 } 2194 2195 static int 2196 fw_modevent(module_t mode, int type, void *data) 2197 { 2198 int err = 0; 2199 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2200 static eventhandler_tag fwdev_ehtag = NULL; 2201 #endif 2202 2203 switch (type) { 2204 case MOD_LOAD: 2205 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2206 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2207 fwdev_clone, 0, 1000); 2208 #endif 2209 break; 2210 case MOD_UNLOAD: 2211 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2212 if (fwdev_ehtag != NULL) 2213 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2214 #endif 2215 break; 2216 case MOD_SHUTDOWN: 2217 break; 2218 } 2219 return (err); 2220 } 2221 2222 /* 2223 * This causes the firewire identify to be called for any attached fwohci 2224 * device in the system. 2225 */ 2226 DECLARE_DUMMY_MODULE(firewire); 2227 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2228 MODULE_VERSION(firewire, 1); 2229