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 1.18 2006/12/22 23:12:16 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 untimeout 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 fw_xfer_done(xfer); 523 } 524 } 525 526 void 527 fw_drain_txq(struct firewire_comm *fc) 528 { 529 int i; 530 531 fw_xferq_drain(fc->atq); 532 fw_xferq_drain(fc->ats); 533 for(i = 0; i < fc->nisodma; i++) 534 fw_xferq_drain(fc->it[i]); 535 } 536 537 static void 538 fw_reset_csr(struct firewire_comm *fc) 539 { 540 int i; 541 542 CSRARC(fc, STATE_CLEAR) 543 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 544 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 545 CSRARC(fc, NODE_IDS) = 0x3f; 546 547 CSRARC(fc, TOPO_MAP + 8) = 0; 548 fc->irm = -1; 549 550 fc->max_node = -1; 551 552 for(i = 2; i < 0x100/4 - 2 ; i++){ 553 CSRARC(fc, SPED_MAP + i * 4) = 0; 554 } 555 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 556 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 557 CSRARC(fc, RESET_START) = 0; 558 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 559 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 560 CSRARC(fc, CYCLE_TIME) = 0x0; 561 CSRARC(fc, BUS_TIME) = 0x0; 562 CSRARC(fc, BUS_MGR_ID) = 0x3f; 563 CSRARC(fc, BANDWIDTH_AV) = 4915; 564 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 565 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 566 CSRARC(fc, IP_CHANNELS) = (1 << 31); 567 568 CSRARC(fc, CONF_ROM) = 0x04 << 24; 569 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 570 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 571 1 << 28 | 0xff << 16 | 0x09 << 8; 572 CSRARC(fc, CONF_ROM + 0xc) = 0; 573 574 /* DV depend CSRs see blue book */ 575 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 576 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 577 578 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 579 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 580 } 581 582 static void 583 fw_init_crom(struct firewire_comm *fc) 584 { 585 struct crom_src *src; 586 587 fc->crom_src_buf = (struct crom_src_buf *) 588 kmalloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 589 if (fc->crom_src_buf == NULL) 590 return; 591 592 src = &fc->crom_src_buf->src; 593 bzero(src, sizeof(struct crom_src)); 594 595 /* BUS info sample */ 596 src->hdr.info_len = 4; 597 598 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 599 600 src->businfo.irmc = 1; 601 src->businfo.cmc = 1; 602 src->businfo.isc = 1; 603 src->businfo.bmc = 1; 604 src->businfo.pmc = 0; 605 src->businfo.cyc_clk_acc = 100; 606 src->businfo.max_rec = fc->maxrec; 607 src->businfo.max_rom = MAXROM_4; 608 src->businfo.generation = 1; 609 src->businfo.link_spd = fc->speed; 610 611 src->businfo.eui64.hi = fc->eui.hi; 612 src->businfo.eui64.lo = fc->eui.lo; 613 614 STAILQ_INIT(&src->chunk_list); 615 616 fc->crom_src = src; 617 fc->crom_root = &fc->crom_src_buf->root; 618 } 619 620 static void 621 fw_reset_crom(struct firewire_comm *fc) 622 { 623 struct crom_src_buf *buf; 624 struct crom_src *src; 625 struct crom_chunk *root; 626 627 if (fc->crom_src_buf == NULL) 628 fw_init_crom(fc); 629 630 buf = fc->crom_src_buf; 631 src = fc->crom_src; 632 root = fc->crom_root; 633 634 STAILQ_INIT(&src->chunk_list); 635 636 bzero(root, sizeof(struct crom_chunk)); 637 crom_add_chunk(src, NULL, root, 0); 638 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 639 /* private company_id */ 640 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 641 #ifdef __DragonFly__ 642 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 643 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version); 644 #else 645 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 646 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 647 #endif 648 crom_add_simple_text(src, root, &buf->hw, hostname); 649 } 650 651 /* 652 * Called after bus reset. 653 */ 654 void 655 fw_busreset(struct firewire_comm *fc) 656 { 657 struct firewire_dev_comm *fdc; 658 struct crom_src *src; 659 device_t *devlistp; 660 void *newrom; 661 int i, devcnt; 662 663 switch(fc->status){ 664 case FWBUSMGRELECT: 665 callout_stop(&fc->bmr_callout); 666 break; 667 default: 668 break; 669 } 670 fc->status = FWBUSRESET; 671 fw_reset_csr(fc); 672 fw_reset_crom(fc); 673 674 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 675 for( i = 0 ; i < devcnt ; i++) 676 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 677 fdc = device_get_softc(devlistp[i]); 678 if (fdc->post_busreset != NULL) 679 fdc->post_busreset(fdc); 680 } 681 kfree(devlistp, M_TEMP); 682 } 683 684 newrom = kmalloc(CROMSIZE, M_FW, M_WAITOK | M_ZERO); 685 src = &fc->crom_src_buf->src; 686 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 687 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 688 /* bump generation and reload */ 689 src->businfo.generation ++; 690 /* generation must be between 0x2 and 0xF */ 691 if (src->businfo.generation < 2) 692 src->businfo.generation ++; 693 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 694 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 695 } 696 kfree(newrom, M_FW); 697 } 698 699 /* Call once after reboot */ 700 void 701 fw_init(struct firewire_comm *fc) 702 { 703 int i; 704 struct csrdir *csrd; 705 #ifdef FW_VMACCESS 706 struct fw_xfer *xfer; 707 struct fw_bind *fwb; 708 #endif 709 710 fc->max_asyretry = FW_MAXASYRTY; 711 712 fc->arq->queued = 0; 713 fc->ars->queued = 0; 714 fc->atq->queued = 0; 715 fc->ats->queued = 0; 716 717 fc->arq->buf = NULL; 718 fc->ars->buf = NULL; 719 fc->atq->buf = NULL; 720 fc->ats->buf = NULL; 721 722 fc->arq->flag = 0; 723 fc->ars->flag = 0; 724 fc->atq->flag = 0; 725 fc->ats->flag = 0; 726 727 STAILQ_INIT(&fc->atq->q); 728 STAILQ_INIT(&fc->ats->q); 729 730 for( i = 0 ; i < fc->nisodma ; i ++ ){ 731 fc->it[i]->queued = 0; 732 fc->ir[i]->queued = 0; 733 734 fc->it[i]->start = NULL; 735 fc->ir[i]->start = NULL; 736 737 fc->it[i]->buf = NULL; 738 fc->ir[i]->buf = NULL; 739 740 fc->it[i]->flag = FWXFERQ_STREAM; 741 fc->ir[i]->flag = FWXFERQ_STREAM; 742 743 STAILQ_INIT(&fc->it[i]->q); 744 STAILQ_INIT(&fc->ir[i]->q); 745 746 STAILQ_INIT(&fc->it[i]->binds); 747 STAILQ_INIT(&fc->ir[i]->binds); 748 } 749 750 fc->arq->maxq = FWMAXQUEUE; 751 fc->ars->maxq = FWMAXQUEUE; 752 fc->atq->maxq = FWMAXQUEUE; 753 fc->ats->maxq = FWMAXQUEUE; 754 755 for( i = 0 ; i < fc->nisodma ; i++){ 756 fc->ir[i]->maxq = FWMAXQUEUE; 757 fc->it[i]->maxq = FWMAXQUEUE; 758 } 759 /* Initialize csr registers */ 760 fc->topology_map = kmalloc(sizeof(struct fw_topology_map), 761 M_FW, M_WAITOK | M_ZERO); 762 fc->speed_map = kmalloc(sizeof(struct fw_speed_map), 763 M_FW, M_WAITOK | M_ZERO); 764 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 765 CSRARC(fc, TOPO_MAP + 4) = 1; 766 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 767 CSRARC(fc, SPED_MAP + 4) = 1; 768 769 STAILQ_INIT(&fc->devices); 770 771 /* Initialize csr ROM work space */ 772 SLIST_INIT(&fc->ongocsr); 773 SLIST_INIT(&fc->csrfree); 774 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 775 csrd = kmalloc(sizeof(struct csrdir), M_FW, M_WAITOK); 776 if(csrd == NULL) break; 777 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 778 } 779 780 /* Initialize Async handlers */ 781 STAILQ_INIT(&fc->binds); 782 for( i = 0 ; i < 0x40 ; i++){ 783 STAILQ_INIT(&fc->tlabels[i]); 784 } 785 786 /* DV depend CSRs see blue book */ 787 #if 0 788 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 789 CSRARC(fc, oPCR) = 0x8000007a; 790 for(i = 4 ; i < 0x7c/4 ; i+=4){ 791 CSRARC(fc, i + oPCR) = 0x8000007a; 792 } 793 794 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 795 CSRARC(fc, iPCR) = 0x803f0000; 796 for(i = 4 ; i < 0x7c/4 ; i+=4){ 797 CSRARC(fc, i + iPCR) = 0x0; 798 } 799 #endif 800 801 fc->crom_src_buf = NULL; 802 803 #ifdef FW_VMACCESS 804 xfer = fw_xfer_alloc(); 805 if(xfer == NULL) return; 806 807 fwb = kmalloc(sizeof (struct fw_bind), M_FW, M_WAITOK); 808 xfer->act.hand = fw_vmaccess; 809 xfer->fc = fc; 810 xfer->sc = NULL; 811 812 fwb->start_hi = 0x2; 813 fwb->start_lo = 0; 814 fwb->addrlen = 0xffffffff; 815 fwb->xfer = xfer; 816 fw_bindadd(fc, fwb); 817 #endif 818 } 819 820 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 821 ((fwb)->end < (addr))?1:0) 822 823 /* 824 * To lookup binded process from IEEE1394 address. 825 */ 826 struct fw_bind * 827 fw_bindlookup(struct firewire_comm *fc, u_int16_t dest_hi, u_int32_t dest_lo) 828 { 829 u_int64_t addr; 830 struct fw_bind *tfw; 831 832 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 833 STAILQ_FOREACH(tfw, &fc->binds, fclist) 834 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0) 835 return(tfw); 836 return(NULL); 837 } 838 839 /* 840 * To bind IEEE1394 address block to process. 841 */ 842 int 843 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 844 { 845 struct fw_bind *tfw, *prev = NULL; 846 847 if (fwb->start > fwb->end) { 848 kprintf("%s: invalid range\n", __func__); 849 return EINVAL; 850 } 851 852 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 853 if (fwb->end < tfw->start) 854 break; 855 prev = tfw; 856 } 857 if (prev == NULL) { 858 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 859 goto out; 860 } 861 if (prev->end < fwb->start) { 862 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 863 goto out; 864 } 865 866 kprintf("%s: bind failed\n", __func__); 867 return (EBUSY); 868 869 out: 870 if (fwb->act_type == FWACT_CH) 871 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 872 return (0); 873 } 874 875 /* 876 * To free IEEE1394 address block. 877 */ 878 int 879 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 880 { 881 #if 0 882 struct fw_xfer *xfer, *next; 883 #endif 884 struct fw_bind *tfw; 885 886 crit_enter(); 887 STAILQ_FOREACH(tfw, &fc->binds, fclist) 888 if (tfw == fwb) { 889 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 890 goto found; 891 } 892 893 kprintf("%s: no such bind\n", __func__); 894 crit_exit(); 895 return (1); 896 found: 897 #if 0 898 /* shall we do this? */ 899 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 900 next = STAILQ_NEXT(xfer, link); 901 fw_xfer_free(xfer); 902 } 903 STAILQ_INIT(&fwb->xferlist); 904 #endif 905 906 crit_exit(); 907 return 0; 908 } 909 910 /* 911 * To free transaction label. 912 */ 913 static void 914 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 915 { 916 struct tlabel *tl; 917 918 crit_enter(); 919 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 920 tl = STAILQ_NEXT(tl, link)){ 921 if(tl->xfer == xfer){ 922 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 923 kfree(tl, M_FW); 924 break; 925 } 926 } 927 crit_exit(); 928 } 929 930 /* 931 * To obtain XFER structure by transaction label. 932 */ 933 static struct fw_xfer * 934 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 935 { 936 struct fw_xfer *xfer; 937 struct tlabel *tl; 938 939 crit_enter(); 940 941 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 942 tl = STAILQ_NEXT(tl, link)){ 943 if(tl->xfer->send.hdr.mode.hdr.dst == node){ 944 xfer = tl->xfer; 945 crit_exit(); 946 if (firewire_debug > 2) 947 kprintf("fw_tl2xfer: found tl=%d\n", tlabel); 948 return(xfer); 949 } 950 } 951 if (firewire_debug > 1) 952 kprintf("fw_tl2xfer: not found tl=%d\n", tlabel); 953 crit_exit(); 954 return(NULL); 955 } 956 957 /* 958 * To allocate IEEE1394 XFER structure. 959 */ 960 struct fw_xfer * 961 fw_xfer_alloc(struct malloc_type *type) 962 { 963 struct fw_xfer *xfer; 964 965 xfer = kmalloc(sizeof(struct fw_xfer), type, M_INTWAIT | M_ZERO); 966 xfer->malloc = type; 967 968 return xfer; 969 } 970 971 struct fw_xfer * 972 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 973 { 974 struct fw_xfer *xfer; 975 976 xfer = fw_xfer_alloc(type); 977 xfer->send.pay_len = send_len; 978 xfer->recv.pay_len = recv_len; 979 if (xfer == NULL) 980 return(NULL); 981 if (send_len > 0) { 982 xfer->send.payload = kmalloc(send_len, type, M_INTWAIT | M_ZERO); 983 if (xfer->send.payload == NULL) { 984 fw_xfer_free(xfer); 985 return(NULL); 986 } 987 } 988 if (recv_len > 0) { 989 xfer->recv.payload = kmalloc(recv_len, type, M_INTWAIT); 990 if (xfer->recv.payload == NULL) { 991 if (xfer->send.payload != NULL) 992 kfree(xfer->send.payload, type); 993 fw_xfer_free(xfer); 994 return(NULL); 995 } 996 } 997 return(xfer); 998 } 999 1000 /* 1001 * IEEE1394 XFER post process. 1002 */ 1003 void 1004 fw_xfer_done(struct fw_xfer *xfer) 1005 { 1006 if (xfer->act.hand == NULL) { 1007 kprintf("act.hand == NULL\n"); 1008 return; 1009 } 1010 1011 if (xfer->fc == NULL) 1012 panic("fw_xfer_done: why xfer->fc is NULL?"); 1013 1014 xfer->act.hand(xfer); 1015 } 1016 1017 void 1018 fw_xfer_unload(struct fw_xfer* xfer) 1019 { 1020 if(xfer == NULL ) return; 1021 if(xfer->state == FWXF_INQ){ 1022 kprintf("fw_xfer_free FWXF_INQ\n"); 1023 crit_enter(); 1024 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1025 xfer->q->queued --; 1026 crit_exit(); 1027 } 1028 if (xfer->fc != NULL) { 1029 #if 1 1030 if(xfer->state == FWXF_START) 1031 /* 1032 * This could happen if: 1033 * 1. We call fwohci_arcv() before fwohci_txd(). 1034 * 2. firewire_watch() is called. 1035 */ 1036 kprintf("fw_xfer_free FWXF_START\n"); 1037 #endif 1038 fw_tl_free(xfer->fc, xfer); 1039 } 1040 xfer->state = FWXF_INIT; 1041 xfer->resp = 0; 1042 xfer->retry = 0; 1043 } 1044 /* 1045 * To free IEEE1394 XFER structure. 1046 */ 1047 void 1048 fw_xfer_free_buf( struct fw_xfer* xfer) 1049 { 1050 if (xfer == NULL) { 1051 kprintf("%s: xfer == NULL\n", __func__); 1052 return; 1053 } 1054 fw_xfer_unload(xfer); 1055 if(xfer->send.payload != NULL){ 1056 kfree(xfer->send.payload, xfer->malloc); 1057 } 1058 if(xfer->recv.payload != NULL){ 1059 kfree(xfer->recv.payload, xfer->malloc); 1060 } 1061 kfree(xfer, xfer->malloc); 1062 } 1063 1064 void 1065 fw_xfer_free( struct fw_xfer* xfer) 1066 { 1067 if (xfer == NULL) { 1068 kprintf("%s: xfer == NULL\n", __func__); 1069 return; 1070 } 1071 fw_xfer_unload(xfer); 1072 kfree(xfer, xfer->malloc); 1073 } 1074 1075 void 1076 fw_asy_callback_free(struct fw_xfer *xfer) 1077 { 1078 #if 0 1079 kprintf("asyreq done state=%d resp=%d\n", 1080 xfer->state, xfer->resp); 1081 #endif 1082 fw_xfer_free(xfer); 1083 } 1084 1085 /* 1086 * To configure PHY. 1087 */ 1088 static void 1089 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1090 { 1091 struct fw_xfer *xfer; 1092 struct fw_pkt *fp; 1093 1094 fc->status = FWBUSPHYCONF; 1095 1096 xfer = fw_xfer_alloc(M_FWXFER); 1097 if (xfer == NULL) 1098 return; 1099 xfer->fc = fc; 1100 xfer->retry_req = fw_asybusy; 1101 xfer->act.hand = fw_asy_callback_free; 1102 1103 fp = &xfer->send.hdr; 1104 fp->mode.ld[1] = 0; 1105 if (root_node >= 0) 1106 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1107 if (gap_count >= 0) 1108 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1109 fp->mode.ld[2] = ~fp->mode.ld[1]; 1110 /* XXX Dangerous, how to pass PHY packet to device driver */ 1111 fp->mode.common.tcode |= FWTCODE_PHY; 1112 1113 if (firewire_debug) 1114 kprintf("send phy_config root_node=%d gap_count=%d\n", 1115 root_node, gap_count); 1116 fw_asyreq(fc, -1, xfer); 1117 } 1118 1119 #if 0 1120 /* 1121 * Dump self ID. 1122 */ 1123 static void 1124 fw_print_sid(u_int32_t sid) 1125 { 1126 union fw_self_id *s; 1127 s = (union fw_self_id *) &sid; 1128 kprintf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1129 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1130 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1131 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1132 s->p0.power_class, s->p0.port0, s->p0.port1, 1133 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1134 } 1135 #endif 1136 1137 /* 1138 * To receive self ID. 1139 */ 1140 void 1141 fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) 1142 { 1143 u_int32_t *p; 1144 union fw_self_id *self_id; 1145 u_int i, j, node, c_port = 0, i_branch = 0; 1146 1147 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1148 fc->status = FWBUSINIT; 1149 fc->max_node = fc->nodeid & 0x3f; 1150 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1151 fc->status = FWBUSCYMELECT; 1152 fc->topology_map->crc_len = 2; 1153 fc->topology_map->generation ++; 1154 fc->topology_map->self_id_count = 0; 1155 fc->topology_map->node_count = 0; 1156 fc->speed_map->generation ++; 1157 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1158 self_id = &fc->topology_map->self_id[0]; 1159 for(i = 0; i < fc->sid_cnt; i ++){ 1160 if (sid[1] != ~sid[0]) { 1161 kprintf("fw_sidrcv: invalid self-id packet\n"); 1162 sid += 2; 1163 continue; 1164 } 1165 *self_id = *((union fw_self_id *)sid); 1166 fc->topology_map->crc_len++; 1167 if(self_id->p0.sequel == 0){ 1168 fc->topology_map->node_count ++; 1169 c_port = 0; 1170 #if 0 1171 fw_print_sid(sid[0]); 1172 #endif 1173 node = self_id->p0.phy_id; 1174 if(fc->max_node < node){ 1175 fc->max_node = self_id->p0.phy_id; 1176 } 1177 /* XXX I'm not sure this is the right speed_map */ 1178 fc->speed_map->speed[node][node] 1179 = self_id->p0.phy_speed; 1180 for (j = 0; j < node; j ++) { 1181 fc->speed_map->speed[j][node] 1182 = fc->speed_map->speed[node][j] 1183 = min(fc->speed_map->speed[j][j], 1184 self_id->p0.phy_speed); 1185 } 1186 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1187 (self_id->p0.link_active && self_id->p0.contender)) { 1188 fc->irm = self_id->p0.phy_id; 1189 } 1190 if(self_id->p0.port0 >= 0x2){ 1191 c_port++; 1192 } 1193 if(self_id->p0.port1 >= 0x2){ 1194 c_port++; 1195 } 1196 if(self_id->p0.port2 >= 0x2){ 1197 c_port++; 1198 } 1199 } 1200 if(c_port > 2){ 1201 i_branch += (c_port - 2); 1202 } 1203 sid += 2; 1204 self_id++; 1205 fc->topology_map->self_id_count ++; 1206 } 1207 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1208 /* CRC */ 1209 fc->topology_map->crc = fw_crc16( 1210 (u_int32_t *)&fc->topology_map->generation, 1211 fc->topology_map->crc_len * 4); 1212 fc->speed_map->crc = fw_crc16( 1213 (u_int32_t *)&fc->speed_map->generation, 1214 fc->speed_map->crc_len * 4); 1215 /* byteswap and copy to CSR */ 1216 p = (u_int32_t *)fc->topology_map; 1217 for (i = 0; i <= fc->topology_map->crc_len; i++) 1218 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1219 p = (u_int32_t *)fc->speed_map; 1220 CSRARC(fc, SPED_MAP) = htonl(*p++); 1221 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1222 /* don't byte-swap u_int8_t array */ 1223 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1224 1225 fc->max_hop = fc->max_node - i_branch; 1226 kprintf(", maxhop <= %d", fc->max_hop); 1227 1228 if(fc->irm == -1 ){ 1229 kprintf(", Not found IRM capable node"); 1230 }else{ 1231 kprintf(", cable IRM = %d", fc->irm); 1232 if (fc->irm == fc->nodeid) 1233 kprintf(" (me)"); 1234 } 1235 kprintf("\n"); 1236 1237 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1238 if (fc->irm == fc->nodeid) { 1239 fc->status = FWBUSMGRDONE; 1240 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1241 fw_bmr(fc); 1242 } else { 1243 fc->status = FWBUSMGRELECT; 1244 callout_reset(&fc->bmr_callout, hz/8, 1245 (void *)fw_try_bmr, (void *)fc); 1246 } 1247 } else 1248 fc->status = FWBUSMGRDONE; 1249 1250 callout_reset(&fc->busprobe_callout, hz/4, 1251 (void *)fw_bus_probe, (void *)fc); 1252 } 1253 1254 /* 1255 * To probe devices on the IEEE1394 bus. 1256 */ 1257 static void 1258 fw_bus_probe(struct firewire_comm *fc) 1259 { 1260 struct fw_device *fwdev; 1261 1262 crit_enter(); 1263 fc->status = FWBUSEXPLORE; 1264 fc->retry_count = 0; 1265 1266 /* Invalidate all devices, just after bus reset. */ 1267 STAILQ_FOREACH(fwdev, &fc->devices, link) 1268 if (fwdev->status != FWDEVINVAL) { 1269 fwdev->status = FWDEVINVAL; 1270 fwdev->rcnt = 0; 1271 } 1272 1273 fc->ongonode = 0; 1274 fc->ongoaddr = CSRROMOFF; 1275 fc->ongodev = NULL; 1276 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1277 fw_bus_explore(fc); 1278 crit_exit(); 1279 } 1280 1281 /* 1282 * To collect device informations on the IEEE1394 bus. 1283 */ 1284 static void 1285 fw_bus_explore(struct firewire_comm *fc ) 1286 { 1287 int err = 0; 1288 struct fw_device *fwdev, *pfwdev, *tfwdev; 1289 u_int32_t addr; 1290 struct fw_xfer *xfer; 1291 struct fw_pkt *fp; 1292 1293 if(fc->status != FWBUSEXPLORE) 1294 return; 1295 1296 loop: 1297 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1298 1299 if(fc->ongonode > fc->max_node) goto done; 1300 if(fc->ongonode >= 0x3f) goto done; 1301 1302 /* check link */ 1303 /* XXX we need to check phy_id first */ 1304 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1305 if (firewire_debug) 1306 kprintf("node%d: link down\n", fc->ongonode); 1307 fc->ongonode++; 1308 goto loop; 1309 } 1310 1311 if(fc->ongoaddr <= CSRROMOFF && 1312 fc->ongoeui.hi == 0xffffffff && 1313 fc->ongoeui.lo == 0xffffffff ){ 1314 fc->ongoaddr = CSRROMOFF; 1315 addr = 0xf0000000 | fc->ongoaddr; 1316 }else if(fc->ongoeui.hi == 0xffffffff ){ 1317 fc->ongoaddr = CSRROMOFF + 0xc; 1318 addr = 0xf0000000 | fc->ongoaddr; 1319 }else if(fc->ongoeui.lo == 0xffffffff ){ 1320 fc->ongoaddr = CSRROMOFF + 0x10; 1321 addr = 0xf0000000 | fc->ongoaddr; 1322 }else if(fc->ongodev == NULL){ 1323 STAILQ_FOREACH(fwdev, &fc->devices, link) 1324 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1325 break; 1326 if(fwdev != NULL){ 1327 fwdev->dst = fc->ongonode; 1328 fwdev->status = FWDEVINIT; 1329 fc->ongodev = fwdev; 1330 fc->ongoaddr = CSRROMOFF; 1331 addr = 0xf0000000 | fc->ongoaddr; 1332 goto dorequest; 1333 } 1334 fwdev = kmalloc(sizeof(struct fw_device), M_FW, 1335 M_WAITOK | M_ZERO); 1336 fwdev->fc = fc; 1337 fwdev->rommax = 0; 1338 fwdev->dst = fc->ongonode; 1339 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1340 fwdev->status = FWDEVINIT; 1341 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1342 1343 pfwdev = NULL; 1344 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1345 if (tfwdev->eui.hi > fwdev->eui.hi || 1346 (tfwdev->eui.hi == fwdev->eui.hi && 1347 tfwdev->eui.lo > fwdev->eui.lo)) 1348 break; 1349 pfwdev = tfwdev; 1350 } 1351 if (pfwdev == NULL) 1352 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1353 else 1354 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1355 1356 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1357 linkspeed[fwdev->speed], 1358 fc->ongoeui.hi, fc->ongoeui.lo); 1359 1360 fc->ongodev = fwdev; 1361 fc->ongoaddr = CSRROMOFF; 1362 addr = 0xf0000000 | fc->ongoaddr; 1363 }else{ 1364 addr = 0xf0000000 | fc->ongoaddr; 1365 } 1366 dorequest: 1367 #if 0 1368 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1369 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1370 fw_bus_explore_callback); 1371 if(xfer == NULL) goto done; 1372 #else 1373 xfer = fw_xfer_alloc(M_FWXFER); 1374 if(xfer == NULL){ 1375 goto done; 1376 } 1377 xfer->send.spd = 0; 1378 fp = &xfer->send.hdr; 1379 fp->mode.rreqq.dest_hi = 0xffff; 1380 fp->mode.rreqq.tlrt = 0; 1381 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1382 fp->mode.rreqq.pri = 0; 1383 fp->mode.rreqq.src = 0; 1384 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode; 1385 fp->mode.rreqq.dest_lo = addr; 1386 xfer->act.hand = fw_bus_explore_callback; 1387 1388 if (firewire_debug) 1389 kprintf("node%d: explore addr=0x%x\n", 1390 fc->ongonode, fc->ongoaddr); 1391 err = fw_asyreq(fc, -1, xfer); 1392 if(err){ 1393 fw_xfer_free( xfer); 1394 return; 1395 } 1396 #endif 1397 return; 1398 done: 1399 /* fw_attach_devs */ 1400 fc->status = FWBUSEXPDONE; 1401 if (firewire_debug) 1402 kprintf("bus_explore done\n"); 1403 fw_attach_dev(fc); 1404 return; 1405 1406 } 1407 1408 /* Portable Async. request read quad */ 1409 struct fw_xfer * 1410 asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1411 u_int32_t addr_hi, u_int32_t addr_lo, 1412 void (*hand) (struct fw_xfer*)) 1413 { 1414 struct fw_xfer *xfer; 1415 struct fw_pkt *fp; 1416 int err; 1417 1418 xfer = fw_xfer_alloc(M_FWXFER); 1419 if (xfer == NULL) 1420 return NULL; 1421 1422 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */ 1423 fp = &xfer->send.hdr; 1424 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1425 if(tl & FWP_TL_VALID){ 1426 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1427 }else{ 1428 fp->mode.rreqq.tlrt = 0; 1429 } 1430 fp->mode.rreqq.tlrt |= rt & 0x3; 1431 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1432 fp->mode.rreqq.pri = 0; 1433 fp->mode.rreqq.src = 0; 1434 fp->mode.rreqq.dst = addr_hi >> 16; 1435 fp->mode.rreqq.dest_lo = addr_lo; 1436 xfer->act.hand = hand; 1437 1438 err = fw_asyreq(fc, -1, xfer); 1439 if(err){ 1440 fw_xfer_free( xfer); 1441 return NULL; 1442 } 1443 return xfer; 1444 } 1445 1446 /* 1447 * Callback for the IEEE1394 bus information collection. 1448 */ 1449 static void 1450 fw_bus_explore_callback(struct fw_xfer *xfer) 1451 { 1452 struct firewire_comm *fc; 1453 struct fw_pkt *sfp,*rfp; 1454 struct csrhdr *chdr; 1455 struct csrdir *csrd; 1456 struct csrreg *csrreg; 1457 u_int32_t offset; 1458 1459 1460 if(xfer == NULL) { 1461 kprintf("xfer == NULL\n"); 1462 return; 1463 } 1464 fc = xfer->fc; 1465 1466 if (firewire_debug) 1467 kprintf("node%d: callback addr=0x%x\n", 1468 fc->ongonode, fc->ongoaddr); 1469 1470 if(xfer->resp != 0){ 1471 kprintf("node%d: resp=%d addr=0x%x\n", 1472 fc->ongonode, xfer->resp, fc->ongoaddr); 1473 goto errnode; 1474 } 1475 1476 sfp = &xfer->send.hdr; 1477 rfp = &xfer->recv.hdr; 1478 #if 0 1479 { 1480 u_int32_t *qld; 1481 int i; 1482 qld = (u_int32_t *)xfer->recv.buf; 1483 kprintf("len:%d\n", xfer->recv.len); 1484 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1485 kprintf("0x%08x ", rfp->mode.ld[i/4]); 1486 if((i % 16) == 15) kprintf("\n"); 1487 } 1488 if((i % 16) != 15) kprintf("\n"); 1489 } 1490 #endif 1491 if(fc->ongodev == NULL){ 1492 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1493 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1494 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1495 /* If CSR is minimal confinguration, more investgation is not needed. */ 1496 if(chdr->info_len == 1){ 1497 if (firewire_debug) 1498 kprintf("node%d: minimal config\n", 1499 fc->ongonode); 1500 goto nextnode; 1501 }else{ 1502 fc->ongoaddr = CSRROMOFF + 0xc; 1503 } 1504 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1505 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1506 fc->ongoaddr = CSRROMOFF + 0x10; 1507 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1508 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1509 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1510 if (firewire_debug) 1511 kprintf("node%d: eui64 is zero.\n", 1512 fc->ongonode); 1513 goto nextnode; 1514 } 1515 fc->ongoaddr = CSRROMOFF; 1516 } 1517 }else{ 1518 if (fc->ongoaddr == CSRROMOFF && 1519 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1520 fc->ongodev->status = FWDEVATTACHED; 1521 goto nextnode; 1522 } 1523 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1524 if(fc->ongoaddr > fc->ongodev->rommax){ 1525 fc->ongodev->rommax = fc->ongoaddr; 1526 } 1527 csrd = SLIST_FIRST(&fc->ongocsr); 1528 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1529 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1530 offset = CSRROMOFF; 1531 }else{ 1532 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1533 offset = csrd->off; 1534 } 1535 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1536 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1537 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1538 csrd = SLIST_FIRST(&fc->csrfree); 1539 if(csrd == NULL){ 1540 goto nextnode; 1541 }else{ 1542 csrd->ongoaddr = fc->ongoaddr; 1543 fc->ongoaddr += csrreg->val * 4; 1544 csrd->off = fc->ongoaddr; 1545 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1546 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1547 goto nextaddr; 1548 } 1549 } 1550 } 1551 fc->ongoaddr += 4; 1552 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1553 (fc->ongodev->rommax < 0x414)){ 1554 if(fc->ongodev->rommax <= 0x414){ 1555 csrd = SLIST_FIRST(&fc->csrfree); 1556 if(csrd == NULL) goto nextnode; 1557 csrd->off = fc->ongoaddr; 1558 csrd->ongoaddr = fc->ongoaddr; 1559 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1560 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1561 } 1562 goto nextaddr; 1563 } 1564 1565 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1566 if(csrd == NULL){ 1567 goto nextnode; 1568 }; 1569 fc->ongoaddr = csrd->ongoaddr + 4; 1570 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1571 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1572 csrd = SLIST_FIRST(&fc->ongocsr); 1573 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1574 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1575 offset = CSRROMOFF; 1576 }else{ 1577 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1578 offset = csrd->off; 1579 } 1580 } 1581 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1582 goto nextnode; 1583 } 1584 } 1585 nextaddr: 1586 fw_xfer_free( xfer); 1587 fw_bus_explore(fc); 1588 return; 1589 errnode: 1590 fc->retry_count++; 1591 if (fc->ongodev != NULL) 1592 fc->ongodev->status = FWDEVINVAL; 1593 nextnode: 1594 fw_xfer_free( xfer); 1595 fc->ongonode++; 1596 /* housekeeping work space */ 1597 fc->ongoaddr = CSRROMOFF; 1598 fc->ongodev = NULL; 1599 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1600 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1601 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1602 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1603 } 1604 fw_bus_explore(fc); 1605 return; 1606 } 1607 1608 /* 1609 * To attach sub-devices layer onto IEEE1394 bus. 1610 */ 1611 static void 1612 fw_attach_dev(struct firewire_comm *fc) 1613 { 1614 struct fw_device *fwdev, *next; 1615 int i, err; 1616 device_t *devlistp; 1617 int devcnt; 1618 struct firewire_dev_comm *fdc; 1619 1620 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1621 next = STAILQ_NEXT(fwdev, link); 1622 if (fwdev->status == FWDEVINIT) { 1623 fwdev->status = FWDEVATTACHED; 1624 } else if (fwdev->status == FWDEVINVAL) { 1625 fwdev->rcnt ++; 1626 if (fwdev->rcnt > hold_count) { 1627 /* 1628 * Remove devices which have not been seen 1629 * for a while. 1630 */ 1631 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1632 link); 1633 kfree(fwdev, M_FW); 1634 } 1635 } 1636 } 1637 1638 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1639 if( err != 0 ) 1640 return; 1641 for( i = 0 ; i < devcnt ; i++){ 1642 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1643 fdc = device_get_softc(devlistp[i]); 1644 if (fdc->post_explore != NULL) 1645 fdc->post_explore(fdc); 1646 } 1647 } 1648 kfree(devlistp, M_TEMP); 1649 1650 if (fc->retry_count > 0) { 1651 kprintf("probe failed for %d node\n", fc->retry_count); 1652 #if 0 1653 callout_reset(&fc->retry_probe_callout, hz*2, 1654 (void *)fc->ibr, (void *)fc); 1655 #endif 1656 } 1657 return; 1658 } 1659 1660 /* 1661 * To allocate uniq transaction label. 1662 */ 1663 static int 1664 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1665 { 1666 u_int i; 1667 struct tlabel *tl, *tmptl; 1668 static u_int32_t label = 0; 1669 1670 crit_enter(); 1671 for( i = 0 ; i < 0x40 ; i ++){ 1672 label = (label + 1) & 0x3f; 1673 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1674 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1675 if (tmptl->xfer->send.hdr.mode.hdr.dst == 1676 xfer->send.hdr.mode.hdr.dst) 1677 break; 1678 } 1679 if(tmptl == NULL) { 1680 tl = kmalloc(sizeof(struct tlabel), M_FW, M_WAITOK); 1681 tl->xfer = xfer; 1682 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1683 crit_exit(); 1684 if (firewire_debug > 1) 1685 kprintf("fw_get_tlabel: dst=%d tl=%d\n", 1686 xfer->send.hdr.mode.hdr.dst, label); 1687 return(label); 1688 } 1689 } 1690 crit_exit(); 1691 1692 kprintf("fw_get_tlabel: no free tlabel\n"); 1693 return(-1); 1694 } 1695 1696 static void 1697 fw_rcv_copy(struct fw_rcv_buf *rb) 1698 { 1699 struct fw_pkt *pkt; 1700 u_char *p; 1701 struct tcode_info *tinfo; 1702 u_int res, i, len, plen; 1703 1704 rb->xfer->recv.spd -= rb->spd; 1705 1706 pkt = (struct fw_pkt *)rb->vec->iov_base; 1707 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1708 1709 /* Copy header */ 1710 p = (u_char *)&rb->xfer->recv.hdr; 1711 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1712 rb->vec->iov_base = (uint8_t *)rb->vec->iov_base + tinfo->hdr_len; 1713 rb->vec->iov_len -= tinfo->hdr_len; 1714 1715 /* Copy payload */ 1716 p = (u_char *)rb->xfer->recv.payload; 1717 res = rb->xfer->recv.pay_len; 1718 1719 /* special handling for RRESQ */ 1720 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1721 p != NULL && res >= sizeof(u_int32_t)) { 1722 *(u_int32_t *)p = pkt->mode.rresq.data; 1723 rb->xfer->recv.pay_len = sizeof(u_int32_t); 1724 return; 1725 } 1726 1727 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1728 return; 1729 1730 plen = pkt->mode.rresb.len; 1731 1732 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1733 len = MIN(rb->vec->iov_len, plen); 1734 if (res < len) { 1735 kprintf("rcv buffer(%d) is %d bytes short.\n", 1736 rb->xfer->recv.pay_len, len - res); 1737 len = res; 1738 } 1739 bcopy(rb->vec->iov_base, p, len); 1740 p += len; 1741 res -= len; 1742 plen -= len; 1743 if (res == 0 || plen == 0) 1744 break; 1745 } 1746 rb->xfer->recv.pay_len -= res; 1747 1748 } 1749 1750 /* 1751 * Generic packet receving process. 1752 */ 1753 void 1754 fw_rcv(struct fw_rcv_buf *rb) 1755 { 1756 struct fw_pkt *fp, *resfp; 1757 struct fw_bind *bind; 1758 int tcode; 1759 int i, len, oldstate; 1760 #if 0 1761 { 1762 u_int32_t *qld; 1763 int i; 1764 qld = (u_int32_t *)buf; 1765 kprintf("spd %d len:%d\n", spd, len); 1766 for( i = 0 ; i <= len && i < 32; i+= 4){ 1767 kprintf("0x%08x ", ntohl(qld[i/4])); 1768 if((i % 16) == 15) kprintf("\n"); 1769 } 1770 if((i % 16) != 15) kprintf("\n"); 1771 } 1772 #endif 1773 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1774 tcode = fp->mode.common.tcode; 1775 switch (tcode) { 1776 case FWTCODE_WRES: 1777 case FWTCODE_RRESQ: 1778 case FWTCODE_RRESB: 1779 case FWTCODE_LRES: 1780 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1781 fp->mode.hdr.tlrt >> 2); 1782 if(rb->xfer == NULL) { 1783 kprintf("fw_rcv: unknown response " 1784 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1785 tcode_str[tcode], tcode, 1786 fp->mode.hdr.src, 1787 fp->mode.hdr.tlrt >> 2, 1788 fp->mode.hdr.tlrt & 3, 1789 fp->mode.rresq.data); 1790 #if 1 1791 kprintf("try ad-hoc work around!!\n"); 1792 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1793 (fp->mode.hdr.tlrt >> 2)^3); 1794 if (rb->xfer == NULL) { 1795 kprintf("no use...\n"); 1796 goto err; 1797 } 1798 #else 1799 goto err; 1800 #endif 1801 } 1802 fw_rcv_copy(rb); 1803 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1804 rb->xfer->resp = EIO; 1805 else 1806 rb->xfer->resp = 0; 1807 /* make sure the packet is drained in AT queue */ 1808 oldstate = rb->xfer->state; 1809 rb->xfer->state = FWXF_RCVD; 1810 switch (oldstate) { 1811 case FWXF_SENT: 1812 fw_xfer_done(rb->xfer); 1813 break; 1814 case FWXF_START: 1815 #if 0 1816 if (firewire_debug) 1817 kprintf("not sent yet tl=%x\n", rb->xfer->tl); 1818 #endif 1819 break; 1820 default: 1821 kprintf("unexpected state %d\n", rb->xfer->state); 1822 } 1823 return; 1824 case FWTCODE_WREQQ: 1825 case FWTCODE_WREQB: 1826 case FWTCODE_RREQQ: 1827 case FWTCODE_RREQB: 1828 case FWTCODE_LREQ: 1829 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1830 fp->mode.rreqq.dest_lo); 1831 if(bind == NULL){ 1832 kprintf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1833 " src=0x%x data=%x\n", 1834 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1835 tcode_str[tcode], tcode, 1836 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1837 if (rb->fc->status == FWBUSRESET) { 1838 kprintf("fw_rcv: cannot respond(bus reset)!\n"); 1839 goto err; 1840 } 1841 rb->xfer = fw_xfer_alloc(M_FWXFER); 1842 if(rb->xfer == NULL){ 1843 return; 1844 } 1845 rb->xfer->send.spd = rb->spd; 1846 rb->xfer->send.pay_len = 0; 1847 resfp = &rb->xfer->send.hdr; 1848 switch (tcode) { 1849 case FWTCODE_WREQQ: 1850 case FWTCODE_WREQB: 1851 resfp->mode.hdr.tcode = FWTCODE_WRES; 1852 break; 1853 case FWTCODE_RREQQ: 1854 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1855 break; 1856 case FWTCODE_RREQB: 1857 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1858 break; 1859 case FWTCODE_LREQ: 1860 resfp->mode.hdr.tcode = FWTCODE_LRES; 1861 break; 1862 } 1863 resfp->mode.hdr.dst = fp->mode.hdr.src; 1864 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1865 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1866 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1867 resfp->mode.rresb.extcode = 0; 1868 resfp->mode.rresb.len = 0; 1869 /* 1870 rb->xfer->act.hand = fw_asy_callback; 1871 */ 1872 rb->xfer->act.hand = fw_xfer_free; 1873 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1874 fw_xfer_free(rb->xfer); 1875 return; 1876 } 1877 goto err; 1878 } 1879 len = 0; 1880 for (i = 0; i < rb->nvec; i ++) 1881 len += rb->vec[i].iov_len; 1882 switch(bind->act_type){ 1883 case FWACT_XFER: 1884 crit_enter(); 1885 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1886 if (rb->xfer == NULL) { 1887 kprintf("Discard a packet for this bind.\n"); 1888 crit_exit(); 1889 goto err; 1890 } 1891 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1892 crit_exit(); 1893 fw_rcv_copy(rb); 1894 rb->xfer->act.hand(rb->xfer); 1895 return; 1896 break; 1897 case FWACT_CH: 1898 if(rb->fc->ir[bind->sub]->queued >= 1899 rb->fc->ir[bind->sub]->maxq){ 1900 device_printf(rb->fc->bdev, 1901 "Discard a packet %x %d\n", 1902 bind->sub, 1903 rb->fc->ir[bind->sub]->queued); 1904 goto err; 1905 } 1906 crit_enter(); 1907 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1908 if (rb->xfer == NULL) { 1909 kprintf("Discard packet for this bind\n"); 1910 goto err; 1911 } 1912 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1913 crit_exit(); 1914 fw_rcv_copy(rb); 1915 crit_enter(); 1916 rb->fc->ir[bind->sub]->queued++; 1917 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q, 1918 rb->xfer, link); 1919 crit_exit(); 1920 1921 wakeup((caddr_t)rb->fc->ir[bind->sub]); 1922 1923 return; 1924 break; 1925 default: 1926 goto err; 1927 break; 1928 } 1929 break; 1930 #if 0 /* shouldn't happen ?? or for GASP */ 1931 case FWTCODE_STREAM: 1932 { 1933 struct fw_xferq *xferq; 1934 1935 xferq = rb->fc->ir[sub]; 1936 #if 0 1937 kprintf("stream rcv dma %d len %d off %d spd %d\n", 1938 sub, len, off, spd); 1939 #endif 1940 if(xferq->queued >= xferq->maxq) { 1941 kprintf("receive queue is full\n"); 1942 goto err; 1943 } 1944 /* XXX get xfer from xfer queue, we don't need copy for 1945 per packet mode */ 1946 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1947 vec[0].iov_len); 1948 if (rb->xfer == NULL) goto err; 1949 fw_rcv_copy(rb) 1950 crit_enter(); 1951 xferq->queued++; 1952 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1953 crit_exit(); 1954 sc = device_get_softc(rb->fc->bdev); 1955 #if defined(__DragonFly__) || __FreeBSD_version < 500000 1956 if (&xferq->rsel.si_pid != 0) 1957 #else 1958 if (SEL_WAITING(&xferq->rsel)) 1959 #endif 1960 selwakeuppri(&xferq->rsel, FWPRI); 1961 if (xferq->flag & FWXFERQ_WAKEUP) { 1962 xferq->flag &= ~FWXFERQ_WAKEUP; 1963 wakeup((caddr_t)xferq); 1964 } 1965 if (xferq->flag & FWXFERQ_HANDLER) { 1966 xferq->hand(xferq); 1967 } 1968 return; 1969 break; 1970 } 1971 #endif 1972 default: 1973 kprintf("fw_rcv: unknow tcode %d\n", tcode); 1974 break; 1975 } 1976 err: 1977 return; 1978 } 1979 1980 /* 1981 * Post process for Bus Manager election process. 1982 */ 1983 static void 1984 fw_try_bmr_callback(struct fw_xfer *xfer) 1985 { 1986 struct firewire_comm *fc; 1987 int bmr; 1988 1989 if (xfer == NULL) 1990 return; 1991 fc = xfer->fc; 1992 if (xfer->resp != 0) 1993 goto error; 1994 if (xfer->recv.payload == NULL) 1995 goto error; 1996 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 1997 goto error; 1998 1999 bmr = ntohl(xfer->recv.payload[0]); 2000 if (bmr == 0x3f) 2001 bmr = fc->nodeid; 2002 2003 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2004 fw_xfer_free_buf(xfer); 2005 fw_bmr(fc); 2006 return; 2007 2008 error: 2009 device_printf(fc->bdev, "bus manager election failed\n"); 2010 fw_xfer_free_buf(xfer); 2011 } 2012 2013 2014 /* 2015 * To candidate Bus Manager election process. 2016 */ 2017 static void 2018 fw_try_bmr(void *arg) 2019 { 2020 struct fw_xfer *xfer; 2021 struct firewire_comm *fc = (struct firewire_comm *)arg; 2022 struct fw_pkt *fp; 2023 int err = 0; 2024 2025 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2026 if(xfer == NULL){ 2027 return; 2028 } 2029 xfer->send.spd = 0; 2030 fc->status = FWBUSMGRELECT; 2031 2032 fp = &xfer->send.hdr; 2033 fp->mode.lreq.dest_hi = 0xffff; 2034 fp->mode.lreq.tlrt = 0; 2035 fp->mode.lreq.tcode = FWTCODE_LREQ; 2036 fp->mode.lreq.pri = 0; 2037 fp->mode.lreq.src = 0; 2038 fp->mode.lreq.len = 8; 2039 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2040 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2041 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2042 xfer->send.payload[0] = htonl(0x3f); 2043 xfer->send.payload[1] = htonl(fc->nodeid); 2044 xfer->act.hand = fw_try_bmr_callback; 2045 2046 err = fw_asyreq(fc, -1, xfer); 2047 if(err){ 2048 fw_xfer_free_buf(xfer); 2049 return; 2050 } 2051 return; 2052 } 2053 2054 #ifdef FW_VMACCESS 2055 /* 2056 * Software implementation for physical memory block access. 2057 * XXX:Too slow, usef for debug purpose only. 2058 */ 2059 static void 2060 fw_vmaccess(struct fw_xfer *xfer){ 2061 struct fw_pkt *rfp, *sfp = NULL; 2062 u_int32_t *ld = (u_int32_t *)xfer->recv.buf; 2063 2064 kprintf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2065 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2066 kprintf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2067 if(xfer->resp != 0){ 2068 fw_xfer_free( xfer); 2069 return; 2070 } 2071 if(xfer->recv.buf == NULL){ 2072 fw_xfer_free( xfer); 2073 return; 2074 } 2075 rfp = (struct fw_pkt *)xfer->recv.buf; 2076 switch(rfp->mode.hdr.tcode){ 2077 /* XXX need fix for 64bit arch */ 2078 case FWTCODE_WREQB: 2079 xfer->send.buf = kmalloc(12, M_FW, M_WAITOK); 2080 xfer->send.len = 12; 2081 sfp = (struct fw_pkt *)xfer->send.buf; 2082 bcopy(rfp->mode.wreqb.payload, 2083 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2084 sfp->mode.wres.tcode = FWTCODE_WRES; 2085 sfp->mode.wres.rtcode = 0; 2086 break; 2087 case FWTCODE_WREQQ: 2088 xfer->send.buf = kmalloc(12, M_FW, M_WAITOK); 2089 xfer->send.len = 12; 2090 sfp->mode.wres.tcode = FWTCODE_WRES; 2091 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2092 sfp->mode.wres.rtcode = 0; 2093 break; 2094 case FWTCODE_RREQB: 2095 xfer->send.buf = kmalloc(16 + rfp->mode.rreqb.len, M_FW, M_WAITOK); 2096 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2097 sfp = (struct fw_pkt *)xfer->send.buf; 2098 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2099 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2100 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2101 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2102 sfp->mode.rresb.rtcode = 0; 2103 sfp->mode.rresb.extcode = 0; 2104 break; 2105 case FWTCODE_RREQQ: 2106 xfer->send.buf = kmalloc(16, M_FW, M_WAITOK); 2107 xfer->send.len = 16; 2108 sfp = (struct fw_pkt *)xfer->send.buf; 2109 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2110 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2111 sfp->mode.rresb.rtcode = 0; 2112 break; 2113 default: 2114 fw_xfer_free( xfer); 2115 return; 2116 } 2117 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2118 xfer->dst = ntohs(rfp->mode.hdr.src); 2119 xfer->act.hand = fw_xfer_free; 2120 xfer->retry_req = fw_asybusy; 2121 2122 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2123 sfp->mode.hdr.pri = 0; 2124 2125 fw_asyreq(xfer->fc, -1, xfer); 2126 /**/ 2127 return; 2128 } 2129 #endif 2130 2131 /* 2132 * CRC16 check-sum for IEEE1394 register blocks. 2133 */ 2134 u_int16_t 2135 fw_crc16(u_int32_t *ptr, u_int32_t len){ 2136 u_int32_t i, sum, crc = 0; 2137 int shift; 2138 len = (len + 3) & ~3; 2139 for(i = 0 ; i < len ; i+= 4){ 2140 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2141 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2142 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2143 } 2144 crc &= 0xffff; 2145 } 2146 return((u_int16_t) crc); 2147 } 2148 2149 static int 2150 fw_bmr(struct firewire_comm *fc) 2151 { 2152 struct fw_device fwdev; 2153 union fw_self_id *self_id; 2154 int cmstr; 2155 u_int32_t quad; 2156 2157 /* Check to see if the current root node is cycle master capable */ 2158 self_id = &fc->topology_map->self_id[fc->max_node]; 2159 if (fc->max_node > 0) { 2160 /* XXX check cmc bit of businfo block rather than contender */ 2161 if (self_id->p0.link_active && self_id->p0.contender) 2162 cmstr = fc->max_node; 2163 else { 2164 device_printf(fc->bdev, 2165 "root node is not cycle master capable\n"); 2166 /* XXX shall we be the cycle master? */ 2167 cmstr = fc->nodeid; 2168 /* XXX need bus reset */ 2169 } 2170 } else 2171 cmstr = -1; 2172 2173 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2174 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2175 /* We are not the bus manager */ 2176 kprintf("\n"); 2177 return(0); 2178 } 2179 kprintf("(me)\n"); 2180 2181 /* Optimize gapcount */ 2182 if(fc->max_hop <= MAX_GAPHOP ) 2183 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2184 /* If we are the cycle master, nothing to do */ 2185 if (cmstr == fc->nodeid || cmstr == -1) 2186 return 0; 2187 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2188 bzero(&fwdev, sizeof(fwdev)); 2189 fwdev.fc = fc; 2190 fwdev.dst = cmstr; 2191 fwdev.speed = 0; 2192 fwdev.maxrec = 8; /* 512 */ 2193 fwdev.status = FWDEVINIT; 2194 /* Set cmstr bit on the cycle master */ 2195 quad = htonl(1 << 8); 2196 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2197 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2198 2199 return 0; 2200 } 2201 2202 static int 2203 fw_modevent(module_t mode, int type, void *data) 2204 { 2205 int err = 0; 2206 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2207 static eventhandler_tag fwdev_ehtag = NULL; 2208 #endif 2209 2210 switch (type) { 2211 case MOD_LOAD: 2212 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2213 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2214 fwdev_clone, 0, 1000); 2215 #endif 2216 break; 2217 case MOD_UNLOAD: 2218 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2219 if (fwdev_ehtag != NULL) 2220 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2221 #endif 2222 break; 2223 case MOD_SHUTDOWN: 2224 break; 2225 } 2226 return (err); 2227 } 2228 2229 /* 2230 * This causes the firewire identify to be called for any attached fwohci 2231 * device in the system. 2232 */ 2233 DECLARE_DUMMY_MODULE(firewire); 2234 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2235 MODULE_VERSION(firewire, 1); 2236