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 1.11 2005/06/02 20:40:33 dillon 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/sysctl.h> 47 #include <sys/thread2.h> 48 49 #if defined(__DragonFly__) || __FreeBSD_version < 500000 50 #include <machine/clock.h> /* for DELAY() */ 51 #endif 52 53 #include <sys/bus.h> /* used by smbus and newbus */ 54 #include <machine/bus.h> 55 56 #ifdef __DragonFly__ 57 #include "firewire.h" 58 #include "firewirereg.h" 59 #include "fwmem.h" 60 #include "iec13213.h" 61 #include "iec68113.h" 62 #else 63 #include <dev/firewire/firewire.h> 64 #include <dev/firewire/firewirereg.h> 65 #include <dev/firewire/fwmem.h> 66 #include <dev/firewire/iec13213.h> 67 #include <dev/firewire/iec68113.h> 68 #endif 69 70 struct crom_src_buf { 71 struct crom_src src; 72 struct crom_chunk root; 73 struct crom_chunk vendor; 74 struct crom_chunk hw; 75 }; 76 77 int firewire_debug=0, try_bmr=1, hold_count=3; 78 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 79 "FireWire driver debug flag"); 80 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 81 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 82 "Try to be a bus manager"); 83 SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0, 84 "Number of count of bus resets for removing lost device information"); 85 86 MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 87 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 88 89 #define FW_MAXASYRTY 4 90 91 devclass_t firewire_devclass; 92 93 static void firewire_identify (driver_t *, device_t); 94 static int firewire_probe (device_t); 95 static int firewire_attach (device_t); 96 static int firewire_detach (device_t); 97 static int firewire_resume (device_t); 98 #if 0 99 static int firewire_shutdown (device_t); 100 #endif 101 static device_t firewire_add_child (device_t, int, const char *, int); 102 static void fw_try_bmr (void *); 103 static void fw_try_bmr_callback (struct fw_xfer *); 104 static void fw_asystart (struct fw_xfer *); 105 static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *); 106 static void fw_bus_probe (struct firewire_comm *); 107 static void fw_bus_explore (struct firewire_comm *); 108 static void fw_bus_explore_callback (struct fw_xfer *); 109 static void fw_attach_dev (struct firewire_comm *); 110 #ifdef FW_VMACCESS 111 static void fw_vmaccess (struct fw_xfer *); 112 #endif 113 struct fw_xfer *asyreqq (struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 114 u_int32_t, u_int32_t, void (*)(struct fw_xfer *)); 115 static int fw_bmr (struct firewire_comm *); 116 117 static device_method_t firewire_methods[] = { 118 /* Device interface */ 119 DEVMETHOD(device_identify, firewire_identify), 120 DEVMETHOD(device_probe, firewire_probe), 121 DEVMETHOD(device_attach, firewire_attach), 122 DEVMETHOD(device_detach, firewire_detach), 123 DEVMETHOD(device_suspend, bus_generic_suspend), 124 DEVMETHOD(device_resume, firewire_resume), 125 DEVMETHOD(device_shutdown, bus_generic_shutdown), 126 127 /* Bus interface */ 128 DEVMETHOD(bus_add_child, firewire_add_child), 129 DEVMETHOD(bus_print_child, bus_generic_print_child), 130 131 { 0, 0 } 132 }; 133 char *linkspeed[] = { 134 "S100", "S200", "S400", "S800", 135 "S1600", "S3200", "undef", "undef" 136 }; 137 138 static char *tcode_str[] = { 139 "WREQQ", "WREQB", "WRES", "undef", 140 "RREQQ", "RREQB", "RRESQ", "RRESB", 141 "CYCS", "LREQ", "STREAM", "LRES", 142 "undef", "undef", "PHY", "undef" 143 }; 144 145 /* IEEE-1394a Table C-2 Gap count as a function of hops*/ 146 #define MAX_GAPHOP 15 147 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 148 21, 24, 26, 29, 32, 35, 37, 40}; 149 150 static driver_t firewire_driver = { 151 "firewire", 152 firewire_methods, 153 sizeof(struct firewire_softc), 154 }; 155 156 /* 157 * Lookup fwdev by node id. 158 */ 159 struct fw_device * 160 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 161 { 162 struct fw_device *fwdev; 163 164 crit_enter(); 165 STAILQ_FOREACH(fwdev, &fc->devices, link) 166 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 167 break; 168 crit_exit(); 169 170 return fwdev; 171 } 172 173 /* 174 * Lookup fwdev by EUI64. 175 */ 176 struct fw_device * 177 fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 178 { 179 struct fw_device *fwdev; 180 181 crit_enter(); 182 STAILQ_FOREACH(fwdev, &fc->devices, link) 183 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 184 break; 185 crit_exit(); 186 187 if(fwdev == NULL) return NULL; 188 if(fwdev->status == FWDEVINVAL) return NULL; 189 return fwdev; 190 } 191 192 /* 193 * Async. request procedure for userland application. 194 */ 195 int 196 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 197 { 198 int err = 0; 199 struct fw_xferq *xferq; 200 int tl = 0, len; 201 struct fw_pkt *fp; 202 int tcode; 203 struct tcode_info *info; 204 205 if(xfer == NULL) return EINVAL; 206 if(xfer->act.hand == NULL){ 207 printf("act.hand == NULL\n"); 208 return EINVAL; 209 } 210 fp = &xfer->send.hdr; 211 212 tcode = fp->mode.common.tcode & 0xf; 213 info = &fc->tcode[tcode]; 214 if (info->flag == 0) { 215 printf("invalid tcode=%x\n", tcode); 216 return EINVAL; 217 } 218 if (info->flag & FWTI_REQ) 219 xferq = fc->atq; 220 else 221 xferq = fc->ats; 222 len = info->hdr_len; 223 if (xfer->send.pay_len > MAXREC(fc->maxrec)) { 224 printf("send.pay_len > maxrec\n"); 225 return EINVAL; 226 } 227 if (info->flag & FWTI_BLOCK_STR) 228 len = fp->mode.stream.len; 229 else if (info->flag & FWTI_BLOCK_ASY) 230 len = fp->mode.rresb.len; 231 else 232 len = 0; 233 if (len != xfer->send.pay_len){ 234 printf("len(%d) != send.pay_len(%d) %s(%x)\n", 235 len, xfer->send.pay_len, tcode_str[tcode], tcode); 236 return EINVAL; 237 } 238 239 if(xferq->start == NULL){ 240 printf("xferq->start == NULL\n"); 241 return EINVAL; 242 } 243 if(!(xferq->queued < xferq->maxq)){ 244 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 245 xferq->queued); 246 return EINVAL; 247 } 248 249 microtime(&xfer->tv); 250 if (info->flag & FWTI_TLABEL) { 251 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 252 return EIO; 253 fp->mode.hdr.tlrt = tl << 2; 254 } 255 256 xfer->tl = tl; 257 xfer->resp = 0; 258 xfer->fc = fc; 259 xfer->q = xferq; 260 xfer->retry_req = fw_asybusy; 261 262 fw_asystart(xfer); 263 return err; 264 } 265 /* 266 * Wakeup blocked process. 267 */ 268 void 269 fw_asy_callback(struct fw_xfer *xfer){ 270 wakeup(xfer); 271 return; 272 } 273 /* 274 * Postpone to later retry. 275 */ 276 void fw_asybusy(struct fw_xfer *xfer){ 277 printf("fw_asybusy\n"); 278 /* 279 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 280 */ 281 #if 0 282 DELAY(20000); 283 #endif 284 fw_asystart(xfer); 285 return; 286 } 287 288 /* 289 * Async. request with given xfer structure. 290 */ 291 static void 292 fw_asystart(struct fw_xfer *xfer) 293 { 294 struct firewire_comm *fc = xfer->fc; 295 296 if(xfer->retry++ >= fc->max_asyretry){ 297 device_printf(fc->bdev, "max_asyretry exceeded\n"); 298 xfer->resp = EBUSY; 299 xfer->state = FWXF_BUSY; 300 xfer->act.hand(xfer); 301 return; 302 } 303 #if 0 /* XXX allow bus explore packets only after bus rest */ 304 if (fc->status < FWBUSEXPLORE) { 305 xfer->resp = EAGAIN; 306 xfer->state = FWXF_BUSY; 307 if (xfer->act.hand != NULL) 308 xfer->act.hand(xfer); 309 return; 310 } 311 #endif 312 crit_enter(); 313 xfer->state = FWXF_INQ; 314 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 315 xfer->q->queued ++; 316 crit_exit(); 317 /* XXX just queue for mbuf */ 318 if (xfer->mbuf == NULL) 319 xfer->q->start(fc); 320 return; 321 } 322 323 static void 324 firewire_identify(driver_t *driver, device_t parent) 325 { 326 BUS_ADD_CHILD(parent, 0, "firewire", -1); 327 } 328 329 static int 330 firewire_probe(device_t dev) 331 { 332 device_set_desc(dev, "IEEE1394(FireWire) bus"); 333 return (0); 334 } 335 336 static void 337 firewire_xfer_timeout(struct firewire_comm *fc) 338 { 339 struct fw_xfer *xfer; 340 struct tlabel *tl; 341 struct timeval tv; 342 struct timeval split_timeout; 343 int i; 344 345 split_timeout.tv_sec = 0; 346 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 347 348 microtime(&tv); 349 timevalsub(&tv, &split_timeout); 350 351 crit_enter(); 352 for (i = 0; i < 0x40; i ++) { 353 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 354 xfer = tl->xfer; 355 if (timevalcmp(&xfer->tv, &tv, >)) 356 /* the rests are newer than this */ 357 break; 358 if (xfer->state == FWXF_START) 359 /* not sent yet */ 360 break; 361 device_printf(fc->bdev, 362 "split transaction timeout dst=0x%x tl=0x%x state=%d\n", 363 xfer->send.hdr.mode.hdr.dst, i, xfer->state); 364 xfer->resp = ETIMEDOUT; 365 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 366 fw_xfer_done(xfer); 367 } 368 } 369 crit_exit(); 370 } 371 372 #define WATCHDOC_HZ 10 373 static void 374 firewire_watchdog(void *arg) 375 { 376 struct firewire_comm *fc; 377 static int watchdoc_clock = 0; 378 379 fc = (struct firewire_comm *)arg; 380 381 /* 382 * At boot stage, the device interrupt is disabled and 383 * We encounter a timeout easily. To avoid this, 384 * ignore clock interrupt for a while. 385 */ 386 if (watchdoc_clock > WATCHDOC_HZ * 15) { 387 firewire_xfer_timeout(fc); 388 fc->timeout(fc); 389 } else 390 watchdoc_clock ++; 391 392 callout_reset(&fc->timeout_callout, hz / WATCHDOC_HZ, 393 (void *)firewire_watchdog, (void *)fc); 394 } 395 396 /* 397 * The attach routine. 398 */ 399 static int 400 firewire_attach(device_t dev) 401 { 402 int unit; 403 struct firewire_softc *sc = device_get_softc(dev); 404 device_t pa = device_get_parent(dev); 405 struct firewire_comm *fc; 406 407 fc = (struct firewire_comm *)device_get_softc(pa); 408 sc->fc = fc; 409 fc->status = FWBUSNOTREADY; 410 411 unit = device_get_unit(dev); 412 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 413 414 fwdev_makedev(sc); 415 416 CALLOUT_INIT(&sc->fc->timeout_callout); 417 CALLOUT_INIT(&sc->fc->bmr_callout); 418 CALLOUT_INIT(&sc->fc->retry_probe_callout); 419 CALLOUT_INIT(&sc->fc->busprobe_callout); 420 421 callout_reset(&sc->fc->timeout_callout, hz, 422 (void *)firewire_watchdog, (void *)sc->fc); 423 424 /* Locate our children */ 425 bus_generic_probe(dev); 426 427 /* launch attachement of the added children */ 428 bus_generic_attach(dev); 429 430 /* bus_reset */ 431 fw_busreset(fc); 432 fc->ibr(fc); 433 434 return 0; 435 } 436 437 /* 438 * Attach it as child. 439 */ 440 static device_t 441 firewire_add_child(device_t dev, int order, const char *name, int unit) 442 { 443 device_t child; 444 struct firewire_softc *sc; 445 446 sc = (struct firewire_softc *)device_get_softc(dev); 447 child = device_add_child(dev, name, unit); 448 if (child) { 449 device_set_ivars(child, sc->fc); 450 device_probe_and_attach(child); 451 } 452 453 return child; 454 } 455 456 static int 457 firewire_resume(device_t dev) 458 { 459 struct firewire_softc *sc; 460 461 sc = (struct firewire_softc *)device_get_softc(dev); 462 sc->fc->status = FWBUSNOTREADY; 463 464 bus_generic_resume(dev); 465 466 return(0); 467 } 468 469 /* 470 * Dettach it. 471 */ 472 static int 473 firewire_detach(device_t dev) 474 { 475 struct firewire_softc *sc; 476 struct csrdir *csrd, *next; 477 struct fw_device *fwdev, *fwdev_next; 478 int err; 479 480 sc = (struct firewire_softc *)device_get_softc(dev); 481 if ((err = fwdev_destroydev(sc)) != 0) 482 return err; 483 484 if ((err = bus_generic_detach(dev)) != 0) 485 return err; 486 487 callout_stop(&sc->fc->timeout_callout); 488 callout_stop(&sc->fc->bmr_callout); 489 callout_stop(&sc->fc->retry_probe_callout); 490 callout_stop(&sc->fc->busprobe_callout); 491 492 /* XXX xfree_free and untimeout on all xfers */ 493 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 494 fwdev = fwdev_next) { 495 fwdev_next = STAILQ_NEXT(fwdev, link); 496 free(fwdev, M_FW); 497 } 498 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 499 next = SLIST_NEXT(csrd, link); 500 free(csrd, M_FW); 501 } 502 free(sc->fc->topology_map, M_FW); 503 free(sc->fc->speed_map, M_FW); 504 free(sc->fc->crom_src_buf, M_FW); 505 return(0); 506 } 507 #if 0 508 static int 509 firewire_shutdown( device_t dev ) 510 { 511 return 0; 512 } 513 #endif 514 515 516 static void 517 fw_xferq_drain(struct fw_xferq *xferq) 518 { 519 struct fw_xfer *xfer; 520 521 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 522 STAILQ_REMOVE_HEAD(&xferq->q, link); 523 xferq->queued --; 524 xfer->resp = EAGAIN; 525 fw_xfer_done(xfer); 526 } 527 } 528 529 void 530 fw_drain_txq(struct firewire_comm *fc) 531 { 532 int i; 533 534 fw_xferq_drain(fc->atq); 535 fw_xferq_drain(fc->ats); 536 for(i = 0; i < fc->nisodma; i++) 537 fw_xferq_drain(fc->it[i]); 538 } 539 540 static void 541 fw_reset_csr(struct firewire_comm *fc) 542 { 543 int i; 544 545 CSRARC(fc, STATE_CLEAR) 546 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 547 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 548 CSRARC(fc, NODE_IDS) = 0x3f; 549 550 CSRARC(fc, TOPO_MAP + 8) = 0; 551 fc->irm = -1; 552 553 fc->max_node = -1; 554 555 for(i = 2; i < 0x100/4 - 2 ; i++){ 556 CSRARC(fc, SPED_MAP + i * 4) = 0; 557 } 558 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 559 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 560 CSRARC(fc, RESET_START) = 0; 561 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 562 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 563 CSRARC(fc, CYCLE_TIME) = 0x0; 564 CSRARC(fc, BUS_TIME) = 0x0; 565 CSRARC(fc, BUS_MGR_ID) = 0x3f; 566 CSRARC(fc, BANDWIDTH_AV) = 4915; 567 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 568 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 569 CSRARC(fc, IP_CHANNELS) = (1 << 31); 570 571 CSRARC(fc, CONF_ROM) = 0x04 << 24; 572 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 573 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 574 1 << 28 | 0xff << 16 | 0x09 << 8; 575 CSRARC(fc, CONF_ROM + 0xc) = 0; 576 577 /* DV depend CSRs see blue book */ 578 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 579 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 580 581 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 582 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 583 } 584 585 static void 586 fw_init_crom(struct firewire_comm *fc) 587 { 588 struct crom_src *src; 589 590 fc->crom_src_buf = (struct crom_src_buf *) 591 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 592 if (fc->crom_src_buf == NULL) 593 return; 594 595 src = &fc->crom_src_buf->src; 596 bzero(src, sizeof(struct crom_src)); 597 598 /* BUS info sample */ 599 src->hdr.info_len = 4; 600 601 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 602 603 src->businfo.irmc = 1; 604 src->businfo.cmc = 1; 605 src->businfo.isc = 1; 606 src->businfo.bmc = 1; 607 src->businfo.pmc = 0; 608 src->businfo.cyc_clk_acc = 100; 609 src->businfo.max_rec = fc->maxrec; 610 src->businfo.max_rom = MAXROM_4; 611 src->businfo.generation = 1; 612 src->businfo.link_spd = fc->speed; 613 614 src->businfo.eui64.hi = fc->eui.hi; 615 src->businfo.eui64.lo = fc->eui.lo; 616 617 STAILQ_INIT(&src->chunk_list); 618 619 fc->crom_src = src; 620 fc->crom_root = &fc->crom_src_buf->root; 621 } 622 623 static void 624 fw_reset_crom(struct firewire_comm *fc) 625 { 626 struct crom_src_buf *buf; 627 struct crom_src *src; 628 struct crom_chunk *root; 629 630 if (fc->crom_src_buf == NULL) 631 fw_init_crom(fc); 632 633 buf = fc->crom_src_buf; 634 src = fc->crom_src; 635 root = fc->crom_root; 636 637 STAILQ_INIT(&src->chunk_list); 638 639 bzero(root, sizeof(struct crom_chunk)); 640 crom_add_chunk(src, NULL, root, 0); 641 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 642 /* private company_id */ 643 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 644 #ifdef __DragonFly__ 645 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 646 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version); 647 #else 648 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 649 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 650 #endif 651 crom_add_simple_text(src, root, &buf->hw, hostname); 652 } 653 654 /* 655 * Called after bus reset. 656 */ 657 void 658 fw_busreset(struct firewire_comm *fc) 659 { 660 struct firewire_dev_comm *fdc; 661 struct crom_src *src; 662 device_t *devlistp; 663 void *newrom; 664 int i, devcnt; 665 666 switch(fc->status){ 667 case FWBUSMGRELECT: 668 callout_stop(&fc->bmr_callout); 669 break; 670 default: 671 break; 672 } 673 fc->status = FWBUSRESET; 674 fw_reset_csr(fc); 675 fw_reset_crom(fc); 676 677 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 678 for( i = 0 ; i < devcnt ; i++) 679 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 680 fdc = device_get_softc(devlistp[i]); 681 if (fdc->post_busreset != NULL) 682 fdc->post_busreset(fdc); 683 } 684 free(devlistp, M_TEMP); 685 } 686 687 newrom = malloc(CROMSIZE, M_FW, M_WAITOK | M_ZERO); 688 src = &fc->crom_src_buf->src; 689 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 690 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 691 /* bump generation and reload */ 692 src->businfo.generation ++; 693 /* generation must be between 0x2 and 0xF */ 694 if (src->businfo.generation < 2) 695 src->businfo.generation ++; 696 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 697 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 698 } 699 free(newrom, M_FW); 700 } 701 702 /* Call once after reboot */ 703 void fw_init(struct firewire_comm *fc) 704 { 705 int i; 706 struct csrdir *csrd; 707 #ifdef FW_VMACCESS 708 struct fw_xfer *xfer; 709 struct fw_bind *fwb; 710 #endif 711 712 fc->max_asyretry = FW_MAXASYRTY; 713 714 fc->arq->queued = 0; 715 fc->ars->queued = 0; 716 fc->atq->queued = 0; 717 fc->ats->queued = 0; 718 719 fc->arq->buf = NULL; 720 fc->ars->buf = NULL; 721 fc->atq->buf = NULL; 722 fc->ats->buf = NULL; 723 724 fc->arq->flag = 0; 725 fc->ars->flag = 0; 726 fc->atq->flag = 0; 727 fc->ats->flag = 0; 728 729 STAILQ_INIT(&fc->atq->q); 730 STAILQ_INIT(&fc->ats->q); 731 732 for( i = 0 ; i < fc->nisodma ; i ++ ){ 733 fc->it[i]->queued = 0; 734 fc->ir[i]->queued = 0; 735 736 fc->it[i]->start = NULL; 737 fc->ir[i]->start = NULL; 738 739 fc->it[i]->buf = NULL; 740 fc->ir[i]->buf = NULL; 741 742 fc->it[i]->flag = FWXFERQ_STREAM; 743 fc->ir[i]->flag = FWXFERQ_STREAM; 744 745 STAILQ_INIT(&fc->it[i]->q); 746 STAILQ_INIT(&fc->ir[i]->q); 747 748 STAILQ_INIT(&fc->it[i]->binds); 749 STAILQ_INIT(&fc->ir[i]->binds); 750 } 751 752 fc->arq->maxq = FWMAXQUEUE; 753 fc->ars->maxq = FWMAXQUEUE; 754 fc->atq->maxq = FWMAXQUEUE; 755 fc->ats->maxq = FWMAXQUEUE; 756 757 for( i = 0 ; i < fc->nisodma ; i++){ 758 fc->ir[i]->maxq = FWMAXQUEUE; 759 fc->it[i]->maxq = FWMAXQUEUE; 760 } 761 /* Initialize csr registers */ 762 fc->topology_map = malloc(sizeof(struct fw_topology_map), 763 M_FW, M_WAITOK | M_ZERO); 764 fc->speed_map = malloc(sizeof(struct fw_speed_map), 765 M_FW, M_WAITOK | M_ZERO); 766 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 767 CSRARC(fc, TOPO_MAP + 4) = 1; 768 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 769 CSRARC(fc, SPED_MAP + 4) = 1; 770 771 STAILQ_INIT(&fc->devices); 772 773 /* Initialize csr ROM work space */ 774 SLIST_INIT(&fc->ongocsr); 775 SLIST_INIT(&fc->csrfree); 776 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 777 csrd = malloc(sizeof(struct csrdir), M_FW, M_WAITOK); 778 if(csrd == NULL) break; 779 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 780 } 781 782 /* Initialize Async handlers */ 783 STAILQ_INIT(&fc->binds); 784 for( i = 0 ; i < 0x40 ; i++){ 785 STAILQ_INIT(&fc->tlabels[i]); 786 } 787 788 /* DV depend CSRs see blue book */ 789 #if 0 790 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 791 CSRARC(fc, oPCR) = 0x8000007a; 792 for(i = 4 ; i < 0x7c/4 ; i+=4){ 793 CSRARC(fc, i + oPCR) = 0x8000007a; 794 } 795 796 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 797 CSRARC(fc, iPCR) = 0x803f0000; 798 for(i = 4 ; i < 0x7c/4 ; i+=4){ 799 CSRARC(fc, i + iPCR) = 0x0; 800 } 801 #endif 802 803 fc->crom_src_buf = NULL; 804 805 #ifdef FW_VMACCESS 806 xfer = fw_xfer_alloc(); 807 if(xfer == NULL) return; 808 809 fwb = malloc(sizeof (struct fw_bind), M_FW, M_WAITOK); 810 xfer->act.hand = fw_vmaccess; 811 xfer->fc = fc; 812 xfer->sc = NULL; 813 814 fwb->start_hi = 0x2; 815 fwb->start_lo = 0; 816 fwb->addrlen = 0xffffffff; 817 fwb->xfer = xfer; 818 fw_bindadd(fc, fwb); 819 #endif 820 } 821 822 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 823 ((fwb)->end < (addr))?1:0) 824 825 /* 826 * To lookup binded process from IEEE1394 address. 827 */ 828 struct fw_bind * 829 fw_bindlookup(struct firewire_comm *fc, u_int16_t dest_hi, u_int32_t dest_lo) 830 { 831 u_int64_t addr; 832 struct fw_bind *tfw; 833 834 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 835 STAILQ_FOREACH(tfw, &fc->binds, fclist) 836 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0) 837 return(tfw); 838 return(NULL); 839 } 840 841 /* 842 * To bind IEEE1394 address block to process. 843 */ 844 int 845 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 846 { 847 struct fw_bind *tfw, *prev = NULL; 848 849 if (fwb->start > fwb->end) { 850 printf("%s: invalid range\n", __func__); 851 return EINVAL; 852 } 853 854 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 855 if (fwb->end < tfw->start) 856 break; 857 prev = tfw; 858 } 859 if (prev == NULL) { 860 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 861 goto out; 862 } 863 if (prev->end < fwb->start) { 864 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 865 goto out; 866 } 867 868 printf("%s: bind failed\n", __func__); 869 return (EBUSY); 870 871 out: 872 if (fwb->act_type == FWACT_CH) 873 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 874 return (0); 875 } 876 877 /* 878 * To free IEEE1394 address block. 879 */ 880 int 881 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 882 { 883 #if 0 884 struct fw_xfer *xfer, *next; 885 #endif 886 struct fw_bind *tfw; 887 888 crit_enter(); 889 STAILQ_FOREACH(tfw, &fc->binds, fclist) 890 if (tfw == fwb) { 891 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 892 goto found; 893 } 894 895 printf("%s: no such bind\n", __func__); 896 crit_exit(); 897 return (1); 898 found: 899 #if 0 900 /* shall we do this? */ 901 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 902 next = STAILQ_NEXT(xfer, link); 903 fw_xfer_free(xfer); 904 } 905 STAILQ_INIT(&fwb->xferlist); 906 #endif 907 908 crit_exit(); 909 return 0; 910 } 911 912 /* 913 * To free transaction label. 914 */ 915 static void 916 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 917 { 918 struct tlabel *tl; 919 920 crit_enter(); 921 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 922 tl = STAILQ_NEXT(tl, link)){ 923 if(tl->xfer == xfer){ 924 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 925 free(tl, M_FW); 926 break; 927 } 928 } 929 crit_exit(); 930 } 931 932 /* 933 * To obtain XFER structure by transaction label. 934 */ 935 static struct fw_xfer * 936 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 937 { 938 struct fw_xfer *xfer; 939 struct tlabel *tl; 940 941 crit_enter(); 942 943 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 944 tl = STAILQ_NEXT(tl, link)){ 945 if(tl->xfer->send.hdr.mode.hdr.dst == node){ 946 xfer = tl->xfer; 947 crit_exit(); 948 if (firewire_debug > 2) 949 printf("fw_tl2xfer: found tl=%d\n", tlabel); 950 return(xfer); 951 } 952 } 953 if (firewire_debug > 1) 954 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 955 crit_exit(); 956 return(NULL); 957 } 958 959 /* 960 * To allocate IEEE1394 XFER structure. 961 */ 962 struct fw_xfer * 963 fw_xfer_alloc(struct malloc_type *type) 964 { 965 struct fw_xfer *xfer; 966 967 xfer = malloc(sizeof(struct fw_xfer), type, M_INTWAIT | M_ZERO); 968 xfer->malloc = type; 969 970 return xfer; 971 } 972 973 struct fw_xfer * 974 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 975 { 976 struct fw_xfer *xfer; 977 978 xfer = fw_xfer_alloc(type); 979 xfer->send.pay_len = send_len; 980 xfer->recv.pay_len = recv_len; 981 if (xfer == NULL) 982 return(NULL); 983 if (send_len > 0) { 984 xfer->send.payload = malloc(send_len, type, M_INTWAIT | M_ZERO); 985 if (xfer->send.payload == NULL) { 986 fw_xfer_free(xfer); 987 return(NULL); 988 } 989 } 990 if (recv_len > 0) { 991 xfer->recv.payload = malloc(recv_len, type, M_INTWAIT); 992 if (xfer->recv.payload == NULL) { 993 if (xfer->send.payload != NULL) 994 free(xfer->send.payload, type); 995 fw_xfer_free(xfer); 996 return(NULL); 997 } 998 } 999 return(xfer); 1000 } 1001 1002 /* 1003 * IEEE1394 XFER post process. 1004 */ 1005 void 1006 fw_xfer_done(struct fw_xfer *xfer) 1007 { 1008 if (xfer->act.hand == NULL) { 1009 printf("act.hand == NULL\n"); 1010 return; 1011 } 1012 1013 if (xfer->fc == NULL) 1014 panic("fw_xfer_done: why xfer->fc is NULL?"); 1015 1016 xfer->act.hand(xfer); 1017 } 1018 1019 void 1020 fw_xfer_unload(struct fw_xfer* xfer) 1021 { 1022 if(xfer == NULL ) return; 1023 if(xfer->state == FWXF_INQ){ 1024 printf("fw_xfer_free FWXF_INQ\n"); 1025 crit_enter(); 1026 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1027 xfer->q->queued --; 1028 crit_exit(); 1029 } 1030 if (xfer->fc != NULL) { 1031 #if 1 1032 if(xfer->state == FWXF_START) 1033 /* 1034 * This could happen if: 1035 * 1. We call fwohci_arcv() before fwohci_txd(). 1036 * 2. firewire_watch() is called. 1037 */ 1038 printf("fw_xfer_free FWXF_START\n"); 1039 #endif 1040 fw_tl_free(xfer->fc, xfer); 1041 } 1042 xfer->state = FWXF_INIT; 1043 xfer->resp = 0; 1044 xfer->retry = 0; 1045 } 1046 /* 1047 * To free IEEE1394 XFER structure. 1048 */ 1049 void 1050 fw_xfer_free_buf( struct fw_xfer* xfer) 1051 { 1052 if (xfer == NULL) { 1053 printf("%s: xfer == NULL\n", __func__); 1054 return; 1055 } 1056 fw_xfer_unload(xfer); 1057 if(xfer->send.payload != NULL){ 1058 free(xfer->send.payload, xfer->malloc); 1059 } 1060 if(xfer->recv.payload != NULL){ 1061 free(xfer->recv.payload, xfer->malloc); 1062 } 1063 free(xfer, xfer->malloc); 1064 } 1065 1066 void 1067 fw_xfer_free( struct fw_xfer* xfer) 1068 { 1069 if (xfer == NULL) { 1070 printf("%s: xfer == NULL\n", __func__); 1071 return; 1072 } 1073 fw_xfer_unload(xfer); 1074 free(xfer, xfer->malloc); 1075 } 1076 1077 void 1078 fw_asy_callback_free(struct fw_xfer *xfer) 1079 { 1080 #if 0 1081 printf("asyreq done state=%d resp=%d\n", 1082 xfer->state, xfer->resp); 1083 #endif 1084 fw_xfer_free(xfer); 1085 } 1086 1087 /* 1088 * To configure PHY. 1089 */ 1090 static void 1091 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1092 { 1093 struct fw_xfer *xfer; 1094 struct fw_pkt *fp; 1095 1096 fc->status = FWBUSPHYCONF; 1097 1098 xfer = fw_xfer_alloc(M_FWXFER); 1099 if (xfer == NULL) 1100 return; 1101 xfer->fc = fc; 1102 xfer->retry_req = fw_asybusy; 1103 xfer->act.hand = fw_asy_callback_free; 1104 1105 fp = &xfer->send.hdr; 1106 fp->mode.ld[1] = 0; 1107 if (root_node >= 0) 1108 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1109 if (gap_count >= 0) 1110 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1111 fp->mode.ld[2] = ~fp->mode.ld[1]; 1112 /* XXX Dangerous, how to pass PHY packet to device driver */ 1113 fp->mode.common.tcode |= FWTCODE_PHY; 1114 1115 if (firewire_debug) 1116 printf("send phy_config root_node=%d gap_count=%d\n", 1117 root_node, gap_count); 1118 fw_asyreq(fc, -1, xfer); 1119 } 1120 1121 #if 0 1122 /* 1123 * Dump self ID. 1124 */ 1125 static void 1126 fw_print_sid(u_int32_t sid) 1127 { 1128 union fw_self_id *s; 1129 s = (union fw_self_id *) &sid; 1130 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1131 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1132 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1133 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1134 s->p0.power_class, s->p0.port0, s->p0.port1, 1135 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1136 } 1137 #endif 1138 1139 /* 1140 * To receive self ID. 1141 */ 1142 void fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) 1143 { 1144 u_int32_t *p; 1145 union fw_self_id *self_id; 1146 u_int i, j, node, c_port = 0, i_branch = 0; 1147 1148 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1149 fc->status = FWBUSINIT; 1150 fc->max_node = fc->nodeid & 0x3f; 1151 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1152 fc->status = FWBUSCYMELECT; 1153 fc->topology_map->crc_len = 2; 1154 fc->topology_map->generation ++; 1155 fc->topology_map->self_id_count = 0; 1156 fc->topology_map->node_count = 0; 1157 fc->speed_map->generation ++; 1158 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1159 self_id = &fc->topology_map->self_id[0]; 1160 for(i = 0; i < fc->sid_cnt; i ++){ 1161 if (sid[1] != ~sid[0]) { 1162 printf("fw_sidrcv: invalid self-id packet\n"); 1163 sid += 2; 1164 continue; 1165 } 1166 *self_id = *((union fw_self_id *)sid); 1167 fc->topology_map->crc_len++; 1168 if(self_id->p0.sequel == 0){ 1169 fc->topology_map->node_count ++; 1170 c_port = 0; 1171 #if 0 1172 fw_print_sid(sid[0]); 1173 #endif 1174 node = self_id->p0.phy_id; 1175 if(fc->max_node < node){ 1176 fc->max_node = self_id->p0.phy_id; 1177 } 1178 /* XXX I'm not sure this is the right speed_map */ 1179 fc->speed_map->speed[node][node] 1180 = self_id->p0.phy_speed; 1181 for (j = 0; j < node; j ++) { 1182 fc->speed_map->speed[j][node] 1183 = fc->speed_map->speed[node][j] 1184 = min(fc->speed_map->speed[j][j], 1185 self_id->p0.phy_speed); 1186 } 1187 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1188 (self_id->p0.link_active && self_id->p0.contender)) { 1189 fc->irm = self_id->p0.phy_id; 1190 } 1191 if(self_id->p0.port0 >= 0x2){ 1192 c_port++; 1193 } 1194 if(self_id->p0.port1 >= 0x2){ 1195 c_port++; 1196 } 1197 if(self_id->p0.port2 >= 0x2){ 1198 c_port++; 1199 } 1200 } 1201 if(c_port > 2){ 1202 i_branch += (c_port - 2); 1203 } 1204 sid += 2; 1205 self_id++; 1206 fc->topology_map->self_id_count ++; 1207 } 1208 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1209 /* CRC */ 1210 fc->topology_map->crc = fw_crc16( 1211 (u_int32_t *)&fc->topology_map->generation, 1212 fc->topology_map->crc_len * 4); 1213 fc->speed_map->crc = fw_crc16( 1214 (u_int32_t *)&fc->speed_map->generation, 1215 fc->speed_map->crc_len * 4); 1216 /* byteswap and copy to CSR */ 1217 p = (u_int32_t *)fc->topology_map; 1218 for (i = 0; i <= fc->topology_map->crc_len; i++) 1219 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1220 p = (u_int32_t *)fc->speed_map; 1221 CSRARC(fc, SPED_MAP) = htonl(*p++); 1222 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1223 /* don't byte-swap u_int8_t array */ 1224 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1225 1226 fc->max_hop = fc->max_node - i_branch; 1227 printf(", maxhop <= %d", fc->max_hop); 1228 1229 if(fc->irm == -1 ){ 1230 printf(", Not found IRM capable node"); 1231 }else{ 1232 printf(", cable IRM = %d", fc->irm); 1233 if (fc->irm == fc->nodeid) 1234 printf(" (me)"); 1235 } 1236 printf("\n"); 1237 1238 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1239 if (fc->irm == fc->nodeid) { 1240 fc->status = FWBUSMGRDONE; 1241 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1242 fw_bmr(fc); 1243 } else { 1244 fc->status = FWBUSMGRELECT; 1245 callout_reset(&fc->bmr_callout, hz/8, 1246 (void *)fw_try_bmr, (void *)fc); 1247 } 1248 } else 1249 fc->status = FWBUSMGRDONE; 1250 1251 callout_reset(&fc->busprobe_callout, hz/4, 1252 (void *)fw_bus_probe, (void *)fc); 1253 } 1254 1255 /* 1256 * To probe devices on the IEEE1394 bus. 1257 */ 1258 static void 1259 fw_bus_probe(struct firewire_comm *fc) 1260 { 1261 struct fw_device *fwdev; 1262 1263 crit_enter(); 1264 fc->status = FWBUSEXPLORE; 1265 fc->retry_count = 0; 1266 1267 /* Invalidate all devices, just after bus reset. */ 1268 STAILQ_FOREACH(fwdev, &fc->devices, link) 1269 if (fwdev->status != FWDEVINVAL) { 1270 fwdev->status = FWDEVINVAL; 1271 fwdev->rcnt = 0; 1272 } 1273 1274 fc->ongonode = 0; 1275 fc->ongoaddr = CSRROMOFF; 1276 fc->ongodev = NULL; 1277 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1278 fw_bus_explore(fc); 1279 crit_exit(); 1280 } 1281 1282 /* 1283 * To collect device informations on the IEEE1394 bus. 1284 */ 1285 static void 1286 fw_bus_explore(struct firewire_comm *fc ) 1287 { 1288 int err = 0; 1289 struct fw_device *fwdev, *pfwdev, *tfwdev; 1290 u_int32_t addr; 1291 struct fw_xfer *xfer; 1292 struct fw_pkt *fp; 1293 1294 if(fc->status != FWBUSEXPLORE) 1295 return; 1296 1297 loop: 1298 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1299 1300 if(fc->ongonode > fc->max_node) goto done; 1301 if(fc->ongonode >= 0x3f) goto done; 1302 1303 /* check link */ 1304 /* XXX we need to check phy_id first */ 1305 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1306 if (firewire_debug) 1307 printf("node%d: link down\n", fc->ongonode); 1308 fc->ongonode++; 1309 goto loop; 1310 } 1311 1312 if(fc->ongoaddr <= CSRROMOFF && 1313 fc->ongoeui.hi == 0xffffffff && 1314 fc->ongoeui.lo == 0xffffffff ){ 1315 fc->ongoaddr = CSRROMOFF; 1316 addr = 0xf0000000 | fc->ongoaddr; 1317 }else if(fc->ongoeui.hi == 0xffffffff ){ 1318 fc->ongoaddr = CSRROMOFF + 0xc; 1319 addr = 0xf0000000 | fc->ongoaddr; 1320 }else if(fc->ongoeui.lo == 0xffffffff ){ 1321 fc->ongoaddr = CSRROMOFF + 0x10; 1322 addr = 0xf0000000 | fc->ongoaddr; 1323 }else if(fc->ongodev == NULL){ 1324 STAILQ_FOREACH(fwdev, &fc->devices, link) 1325 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1326 break; 1327 if(fwdev != NULL){ 1328 fwdev->dst = fc->ongonode; 1329 fwdev->status = FWDEVINIT; 1330 fc->ongodev = fwdev; 1331 fc->ongoaddr = CSRROMOFF; 1332 addr = 0xf0000000 | fc->ongoaddr; 1333 goto dorequest; 1334 } 1335 fwdev = malloc(sizeof(struct fw_device), M_FW, 1336 M_WAITOK | M_ZERO); 1337 fwdev->fc = fc; 1338 fwdev->rommax = 0; 1339 fwdev->dst = fc->ongonode; 1340 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1341 fwdev->status = FWDEVINIT; 1342 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1343 1344 pfwdev = NULL; 1345 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1346 if (tfwdev->eui.hi > fwdev->eui.hi || 1347 (tfwdev->eui.hi == fwdev->eui.hi && 1348 tfwdev->eui.lo > fwdev->eui.lo)) 1349 break; 1350 pfwdev = tfwdev; 1351 } 1352 if (pfwdev == NULL) 1353 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1354 else 1355 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1356 1357 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1358 linkspeed[fwdev->speed], 1359 fc->ongoeui.hi, fc->ongoeui.lo); 1360 1361 fc->ongodev = fwdev; 1362 fc->ongoaddr = CSRROMOFF; 1363 addr = 0xf0000000 | fc->ongoaddr; 1364 }else{ 1365 addr = 0xf0000000 | fc->ongoaddr; 1366 } 1367 dorequest: 1368 #if 0 1369 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1370 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1371 fw_bus_explore_callback); 1372 if(xfer == NULL) goto done; 1373 #else 1374 xfer = fw_xfer_alloc(M_FWXFER); 1375 if(xfer == NULL){ 1376 goto done; 1377 } 1378 xfer->send.spd = 0; 1379 fp = &xfer->send.hdr; 1380 fp->mode.rreqq.dest_hi = 0xffff; 1381 fp->mode.rreqq.tlrt = 0; 1382 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1383 fp->mode.rreqq.pri = 0; 1384 fp->mode.rreqq.src = 0; 1385 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode; 1386 fp->mode.rreqq.dest_lo = addr; 1387 xfer->act.hand = fw_bus_explore_callback; 1388 1389 if (firewire_debug) 1390 printf("node%d: explore addr=0x%x\n", 1391 fc->ongonode, fc->ongoaddr); 1392 err = fw_asyreq(fc, -1, xfer); 1393 if(err){ 1394 fw_xfer_free( xfer); 1395 return; 1396 } 1397 #endif 1398 return; 1399 done: 1400 /* fw_attach_devs */ 1401 fc->status = FWBUSEXPDONE; 1402 if (firewire_debug) 1403 printf("bus_explore done\n"); 1404 fw_attach_dev(fc); 1405 return; 1406 1407 } 1408 1409 /* Portable Async. request read quad */ 1410 struct fw_xfer * 1411 asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1412 u_int32_t addr_hi, u_int32_t addr_lo, 1413 void (*hand) (struct fw_xfer*)) 1414 { 1415 struct fw_xfer *xfer; 1416 struct fw_pkt *fp; 1417 int err; 1418 1419 xfer = fw_xfer_alloc(M_FWXFER); 1420 if (xfer == NULL) 1421 return NULL; 1422 1423 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */ 1424 fp = &xfer->send.hdr; 1425 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1426 if(tl & FWP_TL_VALID){ 1427 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1428 }else{ 1429 fp->mode.rreqq.tlrt = 0; 1430 } 1431 fp->mode.rreqq.tlrt |= rt & 0x3; 1432 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1433 fp->mode.rreqq.pri = 0; 1434 fp->mode.rreqq.src = 0; 1435 fp->mode.rreqq.dst = addr_hi >> 16; 1436 fp->mode.rreqq.dest_lo = addr_lo; 1437 xfer->act.hand = hand; 1438 1439 err = fw_asyreq(fc, -1, xfer); 1440 if(err){ 1441 fw_xfer_free( xfer); 1442 return NULL; 1443 } 1444 return xfer; 1445 } 1446 1447 /* 1448 * Callback for the IEEE1394 bus information collection. 1449 */ 1450 static void 1451 fw_bus_explore_callback(struct fw_xfer *xfer) 1452 { 1453 struct firewire_comm *fc; 1454 struct fw_pkt *sfp,*rfp; 1455 struct csrhdr *chdr; 1456 struct csrdir *csrd; 1457 struct csrreg *csrreg; 1458 u_int32_t offset; 1459 1460 1461 if(xfer == NULL) { 1462 printf("xfer == NULL\n"); 1463 return; 1464 } 1465 fc = xfer->fc; 1466 1467 if (firewire_debug) 1468 printf("node%d: callback addr=0x%x\n", 1469 fc->ongonode, fc->ongoaddr); 1470 1471 if(xfer->resp != 0){ 1472 printf("node%d: resp=%d addr=0x%x\n", 1473 fc->ongonode, xfer->resp, fc->ongoaddr); 1474 goto errnode; 1475 } 1476 1477 sfp = &xfer->send.hdr; 1478 rfp = &xfer->recv.hdr; 1479 #if 0 1480 { 1481 u_int32_t *qld; 1482 int i; 1483 qld = (u_int32_t *)xfer->recv.buf; 1484 printf("len:%d\n", xfer->recv.len); 1485 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1486 printf("0x%08x ", rfp->mode.ld[i/4]); 1487 if((i % 16) == 15) printf("\n"); 1488 } 1489 if((i % 16) != 15) printf("\n"); 1490 } 1491 #endif 1492 if(fc->ongodev == NULL){ 1493 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1494 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1495 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1496 /* If CSR is minimal confinguration, more investgation is not needed. */ 1497 if(chdr->info_len == 1){ 1498 if (firewire_debug) 1499 printf("node%d: minimal config\n", 1500 fc->ongonode); 1501 goto nextnode; 1502 }else{ 1503 fc->ongoaddr = CSRROMOFF + 0xc; 1504 } 1505 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1506 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1507 fc->ongoaddr = CSRROMOFF + 0x10; 1508 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1509 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1510 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1511 if (firewire_debug) 1512 printf("node%d: eui64 is zero.\n", 1513 fc->ongonode); 1514 goto nextnode; 1515 } 1516 fc->ongoaddr = CSRROMOFF; 1517 } 1518 }else{ 1519 if (fc->ongoaddr == CSRROMOFF && 1520 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1521 fc->ongodev->status = FWDEVATTACHED; 1522 goto nextnode; 1523 } 1524 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1525 if(fc->ongoaddr > fc->ongodev->rommax){ 1526 fc->ongodev->rommax = fc->ongoaddr; 1527 } 1528 csrd = SLIST_FIRST(&fc->ongocsr); 1529 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1530 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1531 offset = CSRROMOFF; 1532 }else{ 1533 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1534 offset = csrd->off; 1535 } 1536 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1537 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1538 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1539 csrd = SLIST_FIRST(&fc->csrfree); 1540 if(csrd == NULL){ 1541 goto nextnode; 1542 }else{ 1543 csrd->ongoaddr = fc->ongoaddr; 1544 fc->ongoaddr += csrreg->val * 4; 1545 csrd->off = fc->ongoaddr; 1546 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1547 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1548 goto nextaddr; 1549 } 1550 } 1551 } 1552 fc->ongoaddr += 4; 1553 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1554 (fc->ongodev->rommax < 0x414)){ 1555 if(fc->ongodev->rommax <= 0x414){ 1556 csrd = SLIST_FIRST(&fc->csrfree); 1557 if(csrd == NULL) goto nextnode; 1558 csrd->off = fc->ongoaddr; 1559 csrd->ongoaddr = fc->ongoaddr; 1560 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1561 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1562 } 1563 goto nextaddr; 1564 } 1565 1566 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1567 if(csrd == NULL){ 1568 goto nextnode; 1569 }; 1570 fc->ongoaddr = csrd->ongoaddr + 4; 1571 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1572 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1573 csrd = SLIST_FIRST(&fc->ongocsr); 1574 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1575 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1576 offset = CSRROMOFF; 1577 }else{ 1578 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1579 offset = csrd->off; 1580 } 1581 } 1582 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1583 goto nextnode; 1584 } 1585 } 1586 nextaddr: 1587 fw_xfer_free( xfer); 1588 fw_bus_explore(fc); 1589 return; 1590 errnode: 1591 fc->retry_count++; 1592 if (fc->ongodev != NULL) 1593 fc->ongodev->status = FWDEVINVAL; 1594 nextnode: 1595 fw_xfer_free( xfer); 1596 fc->ongonode++; 1597 /* housekeeping work space */ 1598 fc->ongoaddr = CSRROMOFF; 1599 fc->ongodev = NULL; 1600 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1601 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1602 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1603 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1604 } 1605 fw_bus_explore(fc); 1606 return; 1607 } 1608 1609 /* 1610 * To attach sub-devices layer onto IEEE1394 bus. 1611 */ 1612 static void 1613 fw_attach_dev(struct firewire_comm *fc) 1614 { 1615 struct fw_device *fwdev, *next; 1616 int i, err; 1617 device_t *devlistp; 1618 int devcnt; 1619 struct firewire_dev_comm *fdc; 1620 1621 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1622 next = STAILQ_NEXT(fwdev, link); 1623 if (fwdev->status == FWDEVINIT) { 1624 fwdev->status = FWDEVATTACHED; 1625 } else if (fwdev->status == FWDEVINVAL) { 1626 fwdev->rcnt ++; 1627 if (fwdev->rcnt > hold_count) { 1628 /* 1629 * Remove devices which have not been seen 1630 * for a while. 1631 */ 1632 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1633 link); 1634 free(fwdev, M_FW); 1635 } 1636 } 1637 } 1638 1639 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1640 if( err != 0 ) 1641 return; 1642 for( i = 0 ; i < devcnt ; i++){ 1643 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1644 fdc = device_get_softc(devlistp[i]); 1645 if (fdc->post_explore != NULL) 1646 fdc->post_explore(fdc); 1647 } 1648 } 1649 free(devlistp, M_TEMP); 1650 1651 if (fc->retry_count > 0) { 1652 printf("probe failed for %d node\n", fc->retry_count); 1653 #if 0 1654 callout_reset(&fc->retry_probe_callout, hz*2, 1655 (void *)fc->ibr, (void *)fc); 1656 #endif 1657 } 1658 return; 1659 } 1660 1661 /* 1662 * To allocate uniq transaction label. 1663 */ 1664 static int 1665 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1666 { 1667 u_int i; 1668 struct tlabel *tl, *tmptl; 1669 static u_int32_t label = 0; 1670 1671 crit_enter(); 1672 for( i = 0 ; i < 0x40 ; i ++){ 1673 label = (label + 1) & 0x3f; 1674 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1675 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1676 if (tmptl->xfer->send.hdr.mode.hdr.dst == 1677 xfer->send.hdr.mode.hdr.dst) 1678 break; 1679 } 1680 if(tmptl == NULL) { 1681 tl = malloc(sizeof(struct tlabel), M_FW, M_WAITOK); 1682 tl->xfer = xfer; 1683 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1684 crit_exit(); 1685 if (firewire_debug > 1) 1686 printf("fw_get_tlabel: dst=%d tl=%d\n", 1687 xfer->send.hdr.mode.hdr.dst, label); 1688 return(label); 1689 } 1690 } 1691 crit_exit(); 1692 1693 printf("fw_get_tlabel: no free tlabel\n"); 1694 return(-1); 1695 } 1696 1697 static void 1698 fw_rcv_copy(struct fw_rcv_buf *rb) 1699 { 1700 struct fw_pkt *pkt; 1701 u_char *p; 1702 struct tcode_info *tinfo; 1703 u_int res, i, len, plen; 1704 1705 rb->xfer->recv.spd -= rb->spd; 1706 1707 pkt = (struct fw_pkt *)rb->vec->iov_base; 1708 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1709 1710 /* Copy header */ 1711 p = (u_char *)&rb->xfer->recv.hdr; 1712 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1713 rb->vec->iov_base = (uint8_t *)rb->vec->iov_base + tinfo->hdr_len; 1714 rb->vec->iov_len -= tinfo->hdr_len; 1715 1716 /* Copy payload */ 1717 p = (u_char *)rb->xfer->recv.payload; 1718 res = rb->xfer->recv.pay_len; 1719 1720 /* special handling for RRESQ */ 1721 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1722 p != NULL && res >= sizeof(u_int32_t)) { 1723 *(u_int32_t *)p = pkt->mode.rresq.data; 1724 rb->xfer->recv.pay_len = sizeof(u_int32_t); 1725 return; 1726 } 1727 1728 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1729 return; 1730 1731 plen = pkt->mode.rresb.len; 1732 1733 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1734 len = MIN(rb->vec->iov_len, plen); 1735 if (res < len) { 1736 printf("rcv buffer(%d) is %d bytes short.\n", 1737 rb->xfer->recv.pay_len, len - res); 1738 len = res; 1739 } 1740 bcopy(rb->vec->iov_base, p, len); 1741 p += len; 1742 res -= len; 1743 plen -= len; 1744 if (res == 0 || plen == 0) 1745 break; 1746 } 1747 rb->xfer->recv.pay_len -= res; 1748 1749 } 1750 1751 /* 1752 * Generic packet receving process. 1753 */ 1754 void 1755 fw_rcv(struct fw_rcv_buf *rb) 1756 { 1757 struct fw_pkt *fp, *resfp; 1758 struct fw_bind *bind; 1759 int tcode; 1760 int i, len, oldstate; 1761 #if 0 1762 { 1763 u_int32_t *qld; 1764 int i; 1765 qld = (u_int32_t *)buf; 1766 printf("spd %d len:%d\n", spd, len); 1767 for( i = 0 ; i <= len && i < 32; i+= 4){ 1768 printf("0x%08x ", ntohl(qld[i/4])); 1769 if((i % 16) == 15) printf("\n"); 1770 } 1771 if((i % 16) != 15) printf("\n"); 1772 } 1773 #endif 1774 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1775 tcode = fp->mode.common.tcode; 1776 switch (tcode) { 1777 case FWTCODE_WRES: 1778 case FWTCODE_RRESQ: 1779 case FWTCODE_RRESB: 1780 case FWTCODE_LRES: 1781 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1782 fp->mode.hdr.tlrt >> 2); 1783 if(rb->xfer == NULL) { 1784 printf("fw_rcv: unknown response " 1785 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1786 tcode_str[tcode], tcode, 1787 fp->mode.hdr.src, 1788 fp->mode.hdr.tlrt >> 2, 1789 fp->mode.hdr.tlrt & 3, 1790 fp->mode.rresq.data); 1791 #if 1 1792 printf("try ad-hoc work around!!\n"); 1793 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1794 (fp->mode.hdr.tlrt >> 2)^3); 1795 if (rb->xfer == NULL) { 1796 printf("no use...\n"); 1797 goto err; 1798 } 1799 #else 1800 goto err; 1801 #endif 1802 } 1803 fw_rcv_copy(rb); 1804 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1805 rb->xfer->resp = EIO; 1806 else 1807 rb->xfer->resp = 0; 1808 /* make sure the packet is drained in AT queue */ 1809 oldstate = rb->xfer->state; 1810 rb->xfer->state = FWXF_RCVD; 1811 switch (oldstate) { 1812 case FWXF_SENT: 1813 fw_xfer_done(rb->xfer); 1814 break; 1815 case FWXF_START: 1816 #if 0 1817 if (firewire_debug) 1818 printf("not sent yet tl=%x\n", rb->xfer->tl); 1819 #endif 1820 break; 1821 default: 1822 printf("unexpected state %d\n", rb->xfer->state); 1823 } 1824 return; 1825 case FWTCODE_WREQQ: 1826 case FWTCODE_WREQB: 1827 case FWTCODE_RREQQ: 1828 case FWTCODE_RREQB: 1829 case FWTCODE_LREQ: 1830 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1831 fp->mode.rreqq.dest_lo); 1832 if(bind == NULL){ 1833 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1834 " src=0x%x data=%x\n", 1835 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1836 tcode_str[tcode], tcode, 1837 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1838 if (rb->fc->status == FWBUSRESET) { 1839 printf("fw_rcv: cannot respond(bus reset)!\n"); 1840 goto err; 1841 } 1842 rb->xfer = fw_xfer_alloc(M_FWXFER); 1843 if(rb->xfer == NULL){ 1844 return; 1845 } 1846 rb->xfer->send.spd = rb->spd; 1847 rb->xfer->send.pay_len = 0; 1848 resfp = &rb->xfer->send.hdr; 1849 switch (tcode) { 1850 case FWTCODE_WREQQ: 1851 case FWTCODE_WREQB: 1852 resfp->mode.hdr.tcode = FWTCODE_WRES; 1853 break; 1854 case FWTCODE_RREQQ: 1855 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1856 break; 1857 case FWTCODE_RREQB: 1858 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1859 break; 1860 case FWTCODE_LREQ: 1861 resfp->mode.hdr.tcode = FWTCODE_LRES; 1862 break; 1863 } 1864 resfp->mode.hdr.dst = fp->mode.hdr.src; 1865 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1866 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1867 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1868 resfp->mode.rresb.extcode = 0; 1869 resfp->mode.rresb.len = 0; 1870 /* 1871 rb->xfer->act.hand = fw_asy_callback; 1872 */ 1873 rb->xfer->act.hand = fw_xfer_free; 1874 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1875 fw_xfer_free(rb->xfer); 1876 return; 1877 } 1878 goto err; 1879 } 1880 len = 0; 1881 for (i = 0; i < rb->nvec; i ++) 1882 len += rb->vec[i].iov_len; 1883 switch(bind->act_type){ 1884 case FWACT_XFER: 1885 crit_enter(); 1886 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1887 if (rb->xfer == NULL) { 1888 printf("Discard a packet for this bind.\n"); 1889 crit_exit(); 1890 goto err; 1891 } 1892 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1893 crit_exit(); 1894 fw_rcv_copy(rb); 1895 rb->xfer->act.hand(rb->xfer); 1896 return; 1897 break; 1898 case FWACT_CH: 1899 if(rb->fc->ir[bind->sub]->queued >= 1900 rb->fc->ir[bind->sub]->maxq){ 1901 device_printf(rb->fc->bdev, 1902 "Discard a packet %x %d\n", 1903 bind->sub, 1904 rb->fc->ir[bind->sub]->queued); 1905 goto err; 1906 } 1907 crit_enter(); 1908 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1909 if (rb->xfer == NULL) { 1910 printf("Discard packet for this bind\n"); 1911 goto err; 1912 } 1913 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1914 crit_exit(); 1915 fw_rcv_copy(rb); 1916 crit_enter(); 1917 rb->fc->ir[bind->sub]->queued++; 1918 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q, 1919 rb->xfer, link); 1920 crit_exit(); 1921 1922 wakeup((caddr_t)rb->fc->ir[bind->sub]); 1923 1924 return; 1925 break; 1926 default: 1927 goto err; 1928 break; 1929 } 1930 break; 1931 #if 0 /* shouldn't happen ?? or for GASP */ 1932 case FWTCODE_STREAM: 1933 { 1934 struct fw_xferq *xferq; 1935 1936 xferq = rb->fc->ir[sub]; 1937 #if 0 1938 printf("stream rcv dma %d len %d off %d spd %d\n", 1939 sub, len, off, spd); 1940 #endif 1941 if(xferq->queued >= xferq->maxq) { 1942 printf("receive queue is full\n"); 1943 goto err; 1944 } 1945 /* XXX get xfer from xfer queue, we don't need copy for 1946 per packet mode */ 1947 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1948 vec[0].iov_len); 1949 if (rb->xfer == NULL) goto err; 1950 fw_rcv_copy(rb) 1951 crit_enter(); 1952 xferq->queued++; 1953 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1954 crit_exit(); 1955 sc = device_get_softc(rb->fc->bdev); 1956 #if defined(__DragonFly__) || __FreeBSD_version < 500000 1957 if (&xferq->rsel.si_pid != 0) 1958 #else 1959 if (SEL_WAITING(&xferq->rsel)) 1960 #endif 1961 selwakeuppri(&xferq->rsel, FWPRI); 1962 if (xferq->flag & FWXFERQ_WAKEUP) { 1963 xferq->flag &= ~FWXFERQ_WAKEUP; 1964 wakeup((caddr_t)xferq); 1965 } 1966 if (xferq->flag & FWXFERQ_HANDLER) { 1967 xferq->hand(xferq); 1968 } 1969 return; 1970 break; 1971 } 1972 #endif 1973 default: 1974 printf("fw_rcv: unknow tcode %d\n", tcode); 1975 break; 1976 } 1977 err: 1978 return; 1979 } 1980 1981 /* 1982 * Post process for Bus Manager election process. 1983 */ 1984 static void 1985 fw_try_bmr_callback(struct fw_xfer *xfer) 1986 { 1987 struct firewire_comm *fc; 1988 int bmr; 1989 1990 if (xfer == NULL) 1991 return; 1992 fc = xfer->fc; 1993 if (xfer->resp != 0) 1994 goto error; 1995 if (xfer->recv.payload == NULL) 1996 goto error; 1997 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 1998 goto error; 1999 2000 bmr = ntohl(xfer->recv.payload[0]); 2001 if (bmr == 0x3f) 2002 bmr = fc->nodeid; 2003 2004 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2005 fw_xfer_free_buf(xfer); 2006 fw_bmr(fc); 2007 return; 2008 2009 error: 2010 device_printf(fc->bdev, "bus manager election failed\n"); 2011 fw_xfer_free_buf(xfer); 2012 } 2013 2014 2015 /* 2016 * To candidate Bus Manager election process. 2017 */ 2018 static void 2019 fw_try_bmr(void *arg) 2020 { 2021 struct fw_xfer *xfer; 2022 struct firewire_comm *fc = (struct firewire_comm *)arg; 2023 struct fw_pkt *fp; 2024 int err = 0; 2025 2026 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2027 if(xfer == NULL){ 2028 return; 2029 } 2030 xfer->send.spd = 0; 2031 fc->status = FWBUSMGRELECT; 2032 2033 fp = &xfer->send.hdr; 2034 fp->mode.lreq.dest_hi = 0xffff; 2035 fp->mode.lreq.tlrt = 0; 2036 fp->mode.lreq.tcode = FWTCODE_LREQ; 2037 fp->mode.lreq.pri = 0; 2038 fp->mode.lreq.src = 0; 2039 fp->mode.lreq.len = 8; 2040 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2041 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2042 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2043 xfer->send.payload[0] = htonl(0x3f); 2044 xfer->send.payload[1] = htonl(fc->nodeid); 2045 xfer->act.hand = fw_try_bmr_callback; 2046 2047 err = fw_asyreq(fc, -1, xfer); 2048 if(err){ 2049 fw_xfer_free_buf(xfer); 2050 return; 2051 } 2052 return; 2053 } 2054 2055 #ifdef FW_VMACCESS 2056 /* 2057 * Software implementation for physical memory block access. 2058 * XXX:Too slow, usef for debug purpose only. 2059 */ 2060 static void 2061 fw_vmaccess(struct fw_xfer *xfer){ 2062 struct fw_pkt *rfp, *sfp = NULL; 2063 u_int32_t *ld = (u_int32_t *)xfer->recv.buf; 2064 2065 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2066 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2067 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2068 if(xfer->resp != 0){ 2069 fw_xfer_free( xfer); 2070 return; 2071 } 2072 if(xfer->recv.buf == NULL){ 2073 fw_xfer_free( xfer); 2074 return; 2075 } 2076 rfp = (struct fw_pkt *)xfer->recv.buf; 2077 switch(rfp->mode.hdr.tcode){ 2078 /* XXX need fix for 64bit arch */ 2079 case FWTCODE_WREQB: 2080 xfer->send.buf = malloc(12, M_FW, M_WAITOK); 2081 xfer->send.len = 12; 2082 sfp = (struct fw_pkt *)xfer->send.buf; 2083 bcopy(rfp->mode.wreqb.payload, 2084 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2085 sfp->mode.wres.tcode = FWTCODE_WRES; 2086 sfp->mode.wres.rtcode = 0; 2087 break; 2088 case FWTCODE_WREQQ: 2089 xfer->send.buf = malloc(12, M_FW, M_WAITOK); 2090 xfer->send.len = 12; 2091 sfp->mode.wres.tcode = FWTCODE_WRES; 2092 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2093 sfp->mode.wres.rtcode = 0; 2094 break; 2095 case FWTCODE_RREQB: 2096 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_WAITOK); 2097 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2098 sfp = (struct fw_pkt *)xfer->send.buf; 2099 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2100 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2101 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2102 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2103 sfp->mode.rresb.rtcode = 0; 2104 sfp->mode.rresb.extcode = 0; 2105 break; 2106 case FWTCODE_RREQQ: 2107 xfer->send.buf = malloc(16, M_FW, M_WAITOK); 2108 xfer->send.len = 16; 2109 sfp = (struct fw_pkt *)xfer->send.buf; 2110 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2111 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2112 sfp->mode.rresb.rtcode = 0; 2113 break; 2114 default: 2115 fw_xfer_free( xfer); 2116 return; 2117 } 2118 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2119 xfer->dst = ntohs(rfp->mode.hdr.src); 2120 xfer->act.hand = fw_xfer_free; 2121 xfer->retry_req = fw_asybusy; 2122 2123 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2124 sfp->mode.hdr.pri = 0; 2125 2126 fw_asyreq(xfer->fc, -1, xfer); 2127 /**/ 2128 return; 2129 } 2130 #endif 2131 2132 /* 2133 * CRC16 check-sum for IEEE1394 register blocks. 2134 */ 2135 u_int16_t 2136 fw_crc16(u_int32_t *ptr, u_int32_t len){ 2137 u_int32_t i, sum, crc = 0; 2138 int shift; 2139 len = (len + 3) & ~3; 2140 for(i = 0 ; i < len ; i+= 4){ 2141 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2142 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2143 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2144 } 2145 crc &= 0xffff; 2146 } 2147 return((u_int16_t) crc); 2148 } 2149 2150 static int 2151 fw_bmr(struct firewire_comm *fc) 2152 { 2153 struct fw_device fwdev; 2154 union fw_self_id *self_id; 2155 int cmstr; 2156 u_int32_t quad; 2157 2158 /* Check to see if the current root node is cycle master capable */ 2159 self_id = &fc->topology_map->self_id[fc->max_node]; 2160 if (fc->max_node > 0) { 2161 /* XXX check cmc bit of businfo block rather than contender */ 2162 if (self_id->p0.link_active && self_id->p0.contender) 2163 cmstr = fc->max_node; 2164 else { 2165 device_printf(fc->bdev, 2166 "root node is not cycle master capable\n"); 2167 /* XXX shall we be the cycle master? */ 2168 cmstr = fc->nodeid; 2169 /* XXX need bus reset */ 2170 } 2171 } else 2172 cmstr = -1; 2173 2174 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2175 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2176 /* We are not the bus manager */ 2177 printf("\n"); 2178 return(0); 2179 } 2180 printf("(me)\n"); 2181 2182 /* Optimize gapcount */ 2183 if(fc->max_hop <= MAX_GAPHOP ) 2184 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2185 /* If we are the cycle master, nothing to do */ 2186 if (cmstr == fc->nodeid || cmstr == -1) 2187 return 0; 2188 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2189 bzero(&fwdev, sizeof(fwdev)); 2190 fwdev.fc = fc; 2191 fwdev.dst = cmstr; 2192 fwdev.speed = 0; 2193 fwdev.maxrec = 8; /* 512 */ 2194 fwdev.status = FWDEVINIT; 2195 /* Set cmstr bit on the cycle master */ 2196 quad = htonl(1 << 8); 2197 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2198 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2199 2200 return 0; 2201 } 2202 2203 static int 2204 fw_modevent(module_t mode, int type, void *data) 2205 { 2206 int err = 0; 2207 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2208 static eventhandler_tag fwdev_ehtag = NULL; 2209 #endif 2210 2211 switch (type) { 2212 case MOD_LOAD: 2213 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2214 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2215 fwdev_clone, 0, 1000); 2216 #endif 2217 break; 2218 case MOD_UNLOAD: 2219 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2220 if (fwdev_ehtag != NULL) 2221 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2222 #endif 2223 break; 2224 case MOD_SHUTDOWN: 2225 break; 2226 } 2227 return (err); 2228 } 2229 2230 DECLARE_DUMMY_MODULE(firewire); 2231 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2232 MODULE_VERSION(firewire, 1); 2233